技术领域Technical Field
本发明涉及摄像器材技术领域，具体地说，本发明涉及一种用于光学致动器的驱动结构及相应的摄像模组。The present invention relates to the technical field of camera equipment, and in particular to a driving structure for an optical actuator and a corresponding camera module.
背景技术Background Art
随着消费者对于手机拍照需求的增加，手机摄像头(即摄像模组)的功能越来越丰富，人像拍摄、远距拍摄、光学变焦、光学防抖等功能都集成在了体积有限的摄像头中，而其中自动对焦、光学防抖、光学变焦等功能往往都需要依靠光学致动器(有时也可以称为马达)来实现。As consumers' demand for mobile phone photography increases, the functions of mobile phone cameras (i.e. camera modules) are becoming more and more diverse. Functions such as portrait shooting, long-distance shooting, optical zoom, and optical image stabilization are integrated into cameras of limited size. Among them, functions such as autofocus, optical image stabilization, and optical zoom often need to rely on optical actuators (sometimes also called motors) to achieve.
图1示出了现有技术中一种典型的具有马达的摄像模组。参考图1，该摄像模组通常包括镜头1、马达机构2(可简称为马达)和感光组件3。该摄像模组在拍摄状态下，来自拍摄对象的光线通过镜头1聚焦到感光组件3的感光元件3a上。在结构上，镜头1固定于马达的马达载体(图1中为具体示出)上，该马达载体是可活动部件，它通常可在马达的驱动元件的作用下，带动镜头1在光轴方向上移动以实现对焦功能。而对于具有光学防抖(OIS)功能的摄像模组，其马达往往具有更复杂的结构。这是因为该马达除了要驱动镜头在光轴方向上移动外，还需要驱动镜头1在其他自由度上(例如垂直于光轴的方向上)移动以补偿拍摄时的抖动。通常来说，摄像模组的抖动包括在垂直于光轴的方向上平移(x轴、y轴方向的平移)和旋转(指在xoy平面内的旋转，其转轴方向可以与光轴大致相同)，以及倾斜抖动(指绕x、y轴的旋转，在摄像模组领域中，倾斜抖动又称为tilt抖动)。当模组中的陀螺仪(或其他位置感测元件)检测到某一方向的抖动时，可以发出指令使马达驱动镜头朝相反的方向运动一距离，从而补偿镜头的抖动。通常来说，镜头只在垂直于光轴的方向上进行平移和/或旋转来补偿摄像模组的抖动，这是因为如果让镜头绕x、y轴旋转，即如果通过镜头的tilt调节来实现防抖效果，可能会导致模组的成像品质下降，甚至会造成像糊而难以达到基本的成像品质要求。FIG1 shows a typical camera module with a motor in the prior art. Referring to FIG1 , the camera module generally includes a lens 1, a motor mechanism 2 (which may be referred to as a motor) and a photosensitive component 3. When the camera module is in the shooting state, the light from the subject is focused onto the photosensitive element 3a of the photosensitive component 3 through the lens 1. Structurally, the lens 1 is fixed to the motor carrier of the motor (specifically shown in FIG1 ), and the motor carrier is a movable part, which can usually drive the lens 1 to move in the direction of the optical axis under the action of the driving element of the motor to achieve the focusing function. For a camera module with an optical image stabilization (OIS) function, its motor often has a more complex structure. This is because in addition to driving the lens to move in the direction of the optical axis, the motor also needs to drive the lens 1 to move in other degrees of freedom (for example, in a direction perpendicular to the optical axis) to compensate for the shake during shooting. Generally speaking, the jitter of a camera module includes translation in a direction perpendicular to the optical axis (translation in the direction of the x-axis and y-axis) and rotation (referring to rotation in the xoy plane, and the direction of the axis of rotation can be roughly the same as the optical axis), as well as tilt jitter (referring to rotation around the x-axis and y-axis. In the field of camera modules, tilt jitter is also called tilt jitter). When the gyroscope (or other position sensing element) in the module detects jitter in a certain direction, it can issue a command to drive the motor to move a distance in the opposite direction to compensate for the jitter of the lens. Generally speaking, the lens only translates and/or rotates in a direction perpendicular to the optical axis to compensate for the jitter of the camera module. This is because if the lens is rotated around the x-axis and y-axis, that is, if the anti-shake effect is achieved by adjusting the tilt of the lens, the imaging quality of the module may be reduced, and even the image may be blurred, making it difficult to meet the basic imaging quality requirements.
然而，随着手机摄像模组的成像质量要求越来越高，镜头的体积和重量越来越大，对马达的驱动力要求也越来越高。而当前电子设备(例如手机)对摄像模组的体积也有很大的限制，马达的占用体积随着镜头的增大而相应的增加。换句话说，在镜头向更大体积、更大重量发展的趋势下，马达所能提供的驱动力却难以相应地增加。在驱动力受限的前提下，镜头越重，马达能够驱动镜头移动的行程越短，影响防抖能力。另一方面，镜头越重，马达能够驱动镜头移动的速度也越慢，镜头到达预定的补偿位置的时间也越长，这也会影响防抖效果。However, as the imaging quality requirements of mobile phone camera modules become higher and higher, the size and weight of the lens are getting larger and larger, and the driving force requirements for the motor are also getting higher and higher. However, current electronic devices (such as mobile phones) also have great restrictions on the size of camera modules, and the volume occupied by the motor increases accordingly with the increase of the lens. In other words, as the lens develops towards larger size and heavier weight, the driving force that the motor can provide is difficult to increase accordingly. Under the premise of limited driving force, the heavier the lens, the shorter the stroke that the motor can drive the lens to move, affecting the anti-shake ability. On the other hand, the heavier the lens, the slower the speed at which the motor can drive the lens to move, and the longer the time it takes for the lens to reach the predetermined compensation position, which will also affect the anti-shake effect.
因此，当前迫切需要一种能够提高摄像模组的防抖行程以及防抖响应速度的解决方案。Therefore, there is an urgent need for a solution that can improve the anti-shake range and anti-shake response speed of the camera module.
发明内容Summary of the invention
本发明的目的在于，克服现有技术的不足，提供一种能够提高摄像模组的防抖行程以及防抖响应速度的解决方案。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a solution that can improve the anti-shake stroke and anti-shake response speed of a camera module.
为解决上述技术问题，本发明提供了一种用于光学致动器的驱动结构，其包括：第一驱动部，其适于安装镜头，所述第一驱动部包括第一基础部、与所述第一基础部活动连接的第一可动部和安装于所述第一可动部的镜头驱动线圈，其中所述x轴和所述y轴均是垂直于所述镜头的光轴的坐标轴，且所述x轴和所述y轴互相垂直；以及第二驱动部，其适于安装感光组件，所述第二驱动部包括第二基础部、第二可动部和安装于所述第二可动部的感光组件驱动线圈，第二可动部位于所述第二基础部下方并与所述第二基础部活动连接，所述感光组件位于所述第二可动部下方并固定于所述第二可动部。其中，所述第一驱动部和第二驱动部具有共用磁石，所述共用磁石设置在所述第一基础部或者所述第二基础部，所述感光组件包括感光芯片，所述第一驱动部通过所述镜头驱动线圈和所述共用磁石的电磁感应，来驱动所述镜头在x轴和y轴方向平移，所述第二驱动部通过所述感光组件驱动线圈和所述共用磁石的电磁感应，来驱动感光芯片在所述x轴和所述y轴方向平移；并且所述镜头与所述感光芯片被配置为同时驱动，且朝向相反的方向移动。To solve the above technical problems, the present invention provides a driving structure for an optical actuator, which includes: a first driving part, which is suitable for installing a lens, the first driving part includes a first base part, a first movable part movably connected to the first base part, and a lens driving coil installed on the first movable part, wherein the x-axis and the y-axis are coordinate axes perpendicular to the optical axis of the lens, and the x-axis and the y-axis are perpendicular to each other; and a second driving part, which is suitable for installing a photosensitive component, the second driving part includes a second base part, a second movable part, and a photosensitive component driving coil installed on the second movable part, the second movable part is located below the second base part and movably connected to the second base part, and the photosensitive component is located below the second movable part and fixed to the second movable part. Among them, the first driving part and the second driving part have a common magnet, and the common magnet is arranged on the first base part or the second base part. The photosensitive component includes a photosensitive chip. The first driving part drives the lens to translate in the x-axis and y-axis directions through the electromagnetic induction of the lens driving coil and the common magnet, and the second driving part drives the photosensitive chip to translate in the x-axis and y-axis directions through the electromagnetic induction of the photosensitive component driving coil and the common magnet; and the lens and the photosensitive chip are configured to be driven simultaneously and move in opposite directions.
其中，所述第一基础部和所述第二基础部通过胶材粘结固定。Wherein, the first base part and the second base part are bonded and fixed by adhesive.
其中，所述第二驱动部还用于驱动所述感光芯片在xoy平面上旋转。Wherein, the second driving unit is also used to drive the photosensitive chip to rotate on the xoy plane.
其中，根据所检测到的摄像模组的倾斜抖动角度a，确定所述第一驱动模块驱动所述镜头移动的镜头移动距离b，以及所述第二驱动模块驱动所述感光芯片移动的感光芯片移动距离c；其中，所述镜头移动距离b、所述感光芯片移动距离c以及所述摄像模组的像方焦距f之间满足：a＝arctan(b/f)+arctan(c/f)。Among them, according to the detected tilt and shake angle a of the camera module, the lens moving distance b driven by the first driving module to move the lens and the photosensitive chip moving distance c driven by the second driving module to move the photosensitive chip are determined; wherein the lens moving distance b, the photosensitive chip moving distance c and the image side focal length f of the camera module satisfy: a=arctan(b/f)+arctan(c/f).
其中，所述驱动结构还包括驱动逻辑模块，其用于使所述镜头移动距离b和所述感光芯片移动距离c的比例保持在预设的固定比例。The driving structure further includes a driving logic module, which is used to keep the ratio of the lens moving distance b and the photosensitive chip moving distance c at a preset fixed ratio.
其中，所述驱动结构还包括驱动逻辑模块，其具有一防抖阈值K，所述驱动逻辑模块用于在所述倾斜抖动角度a小于等于所述防抖阈值K时，使所述镜头移动距离b和所述感光芯片移动距离c的比例保持在预设的固定比例，在所述倾斜抖动角度a大于所述防抖阈值K时，使所述感光芯片移动距离c到达其移动行程的最大值cmax，所述镜头移动距离b根据关系式b＝tan(a/f)-cmax计算获得。Wherein, the driving structure also includes a driving logic module, which has an anti-shake threshold K. The driving logic module is used to keep the ratio of the lens moving distance b and the photosensitive chip moving distance c at a preset fixed ratio when the tilt shake angle a is less than or equal to the anti-shake threshold K, and to make the photosensitive chip moving distance c reach its maximum value cmax of its moving stroke when the tilt shake angle a is greater than the anti-shake threshold K. The lens moving distance b is calculated according to the relationship b=tan(a/f)-cmax .
其中，所述镜头移动距离和所述感光芯片移动距离的预设的固定比例根据所述镜头的重量、所述第一驱动部的驱动力、所述感光芯片或感光组件的重量以及所述第二驱动部的驱动力进行设定，以使得所述镜头和所述感光芯片移动到各自防抖目标位置的时间一致。Among them, the preset fixed ratio of the lens moving distance and the photosensitive chip moving distance is set according to the weight of the lens, the driving force of the first driving unit, the weight of the photosensitive chip or the photosensitive component and the driving force of the second driving unit, so that the time for the lens and the photosensitive chip to move to their respective anti-shake target positions is consistent.
其中，所述第二可动部通过滚珠与所述第二基础部活动连接，并且通过基于所述滚珠的悬挂系统将所述第二可动部相对于所述第二基础部的移动自由度限制在xoy平面以内。The second movable part is movably connected to the second base part via a ball, and the movement freedom of the second movable part relative to the second base part is limited within the xoy plane via a suspension system based on the ball.
其中，在俯视角度下所述滚珠布置在所述第二驱动部的四角区域。Wherein, the balls are arranged at the four corners of the second driving part in a top view.
其中，所述驱动结构还包括一位于所述第二驱动部下方的后壳，所述后壳与所述第二基础部连接，并形成一容纳腔，所述第二可动部和所述感光组件均位于所述容纳腔中；并且所述感光组件与所述后壳的底部之间具有间隙。Among them, the driving structure also includes a rear shell located below the second driving part, the rear shell is connected to the second base part, and forms a accommodating cavity, the second movable part and the photosensitive component are both located in the accommodating cavity; and there is a gap between the photosensitive component and the bottom of the rear shell.
其中，所述第二可动部具有向下延伸的延伸臂，所述延伸臂与所述感光组件的线路板粘接；所述延伸臂设置有FPC，所述FPC直接焊接于所述线路板。Among them, the second movable part has an extension arm extending downward, and the extension arm is bonded to the circuit board of the photosensitive component; the extension arm is provided with an FPC, and the FPC is directly welded to the circuit board.
其中，所述第二可动部和所述第二基础部的中央均具有通光孔。Wherein, the second movable part and the second base part both have light-through holes in their centers.
其中，所述第二基础部包括基底和盖，所述盖包括自基底向下延伸而形成的环绕所述第二可动部的侧壁和自所述侧壁水平向内延伸而形成的承靠台。The second base portion includes a base and a cover, and the cover includes a side wall extending downward from the base to surround the second movable portion and a supporting platform extending horizontally inward from the side wall to form.
其中，所述滚珠及所述第二可动部的边缘区域被夹持于所述基底和所述承靠台之间。The ball and the edge area of the second movable part are clamped between the base and the supporting platform.
其中，所述第二基础部的上表面具有台阶结构，所述台阶结构包括位于外侧的第一台阶面和位于内侧的第二台阶面，所述第二台阶面的高度低于所述第一台阶面的高度。The upper surface of the second base portion has a step structure, and the step structure includes a first step surface located on the outside and a second step surface located on the inside, and the height of the second step surface is lower than the height of the first step surface.
其中，所述第二可动部的边缘区的上表面具有凹槽，所述滚珠置于所述凹槽中。Wherein, an upper surface of the edge area of the second movable part has a groove, and the ball is placed in the groove.
其中，所述第二可动部的边缘区的上表面具有凹陷台阶，所述凹陷台阶的外侧台阶面低于其内侧台阶面，并且所述凹陷台阶与所述盖的所述侧壁以及所述基底共同形成用于容纳所述滚珠的容纳腔。The upper surface of the edge area of the second movable part has a recessed step, the outer step surface of the recessed step is lower than the inner step surface, and the recessed step, the side wall of the cover and the base together form a receiving cavity for receiving the ball.
其中，所述滚珠位于所述承靠台和所述第二可动部之间。Wherein, the ball is located between the supporting platform and the second movable part.
其中，所述基底与所述第二可动部之间、所述第二可动部与所述承靠台之间分别设置一层滚珠。Wherein, a layer of balls is respectively arranged between the base and the second movable part, and between the second movable part and the supporting platform.
其中，所述第二可动部的外侧面设置向内凹陷的卡槽，所述承靠台嵌合进所述卡槽内。Wherein, an inwardly recessed slot is provided on the outer side surface of the second movable part, and the supporting platform is embedded in the slot.
其中，所述第二可动部的下端面与所述感光组件的镜座的上端面之间布置胶水，所述胶水避开所述第二可动部的四角区域。Wherein, glue is arranged between the lower end surface of the second movable part and the upper end surface of the lens seat of the photosensitive component, and the glue avoids the four corner areas of the second movable part.
其中，所述共用磁石设置在所述第二基础部的边缘区域，所述镜头驱动线圈设置在所述第二可动部的边缘区域。The common magnet is arranged at an edge area of the second base portion, and the lens driving coil is arranged at an edge area of the second movable portion.
其中，所述第二驱动部中，所述共用磁石和所述感光组件驱动线圈构成的线圈磁石组合包括第一线圈磁石对、第二线圈磁石对和第三线圈磁石对；其中，所述第一线圈磁石对与所述第二线圈磁石对用于提供x轴方向上的驱动力；所述第三线圈磁石对用于提供y轴方向上的驱动力；并且在俯视角度下，所述第二驱动部的外形呈矩形，所述第一线圈磁石对与所述第二线圈磁石对分别沿着所述第二驱动部的第一边和第二边布置，所述第一边和所述第二边不相交，而所述第二线圈磁石对沿着所述第二驱动部的第三边布置，所述第三边与所述第一边和所述第二边均相交；并且所述镜头驱动线圈包括分别设置在所述第一线圈磁石对、第二线圈磁石对和第三线圈磁石对上方的第一镜头驱动线圈、第二镜头驱动线圈和第三镜头驱动线圈；所述第一镜头驱动线圈与所述第一线圈磁石对的所述共用磁石，以及所述第二镜头驱动线圈与所述第二线圈磁石对的所述共用磁石用于提供x轴方向上的驱动力，所述第三镜头驱动线圈与所述第三线圈磁石对的所述共用磁石用于提供y轴方向上的驱动力。Among them, in the second driving part, the coil magnet combination composed of the common magnet and the photosensitive component driving coil includes a first coil magnet pair, a second coil magnet pair and a third coil magnet pair; wherein, the first coil magnet pair and the second coil magnet pair are used to provide a driving force in the x-axis direction; the third coil magnet pair is used to provide a driving force in the y-axis direction; and in a top-down view, the second driving part has a rectangular shape, the first coil magnet pair and the second coil magnet pair are respectively arranged along the first side and the second side of the second driving part, the first side and the second side do not intersect, and the second coil magnet pair is arranged along the The third side of the second driving unit is arranged, and the third side intersects with both the first side and the second side; and the lens driving coil includes a first lens driving coil, a second lens driving coil and a third lens driving coil, which are respectively arranged above the first coil magnet pair, the second coil magnet pair and the third coil magnet pair; the common magnet of the first lens driving coil and the first coil magnet pair, and the common magnet of the second lens driving coil and the second coil magnet pair are used to provide driving force in the x-axis direction, and the common magnet of the third lens driving coil and the third coil magnet pair is used to provide driving force in the y-axis direction.
其中，所述第一基础部包括一位于所述第一可动部下方的马达底座，所述马达底座具有通光孔，所述共用磁石安装于所述马达底座的边缘区域，所述镜头驱动线圈安装于所述第一可动部的底部；所述共用磁石和所述镜头驱动线圈构成的磁石线圈对包括第一线圈磁石对、第二线圈磁石对和第三线圈磁石对；其中，所述第一线圈磁石对与所述第二线圈磁石对用于提供x轴方向上的驱动力；所述第三线圈磁石对用于提供y轴方向上的驱动力；并且在俯视角度下，所述第一驱动部的外轮廓呈矩形，所述第一线圈磁石对与所述第二线圈磁石对分别沿着所述第一驱动部的第一边和第二边布置，所述第一边和所述第二边不相交，而所述第三线圈磁石对沿着所述第二驱动部的第三边布置，所述第三边与所述第一边和所述第二边均相交；并且所述感光组件驱动线圈包括分别设置在所述第一线圈磁石对、第二线圈磁石对和第三线圈磁石对下方的第一感光组件驱动线圈、第二感光组件驱动线圈和第三感光组件驱动线圈；所述第一感光组件驱动线圈与所述第一线圈磁石对的所述共用磁石，以及所述第二感光组件驱动线圈与所述第二线圈磁石对的所述共用磁石用于提供x轴方向上的驱动力，所述第三感光组件驱动线圈与所述第三线圈磁石对的所述共用磁石用于提供y轴方向上的驱动力。Among them, the first base part includes a motor base located below the first movable part, the motor base has a light-through hole, the common magnet is installed on the edge area of the motor base, and the lens driving coil is installed on the bottom of the first movable part; the magnet coil pair formed by the common magnet and the lens driving coil includes a first coil magnet pair, a second coil magnet pair and a third coil magnet pair; wherein the first coil magnet pair and the second coil magnet pair are used to provide a driving force in the x-axis direction; the third coil magnet pair is used to provide a driving force in the y-axis direction; and in a top-down view, the outer contour of the first driving part is rectangular, the first coil magnet pair and the second coil magnet pair are arranged along the first side and the second side of the first driving part respectively, The first side and the second side do not intersect, and the third coil magnet pair is arranged along the third side of the second driving part, and the third side intersects with both the first side and the second side; and the photosensitive component driving coil includes a first photosensitive component driving coil, a second photosensitive component driving coil and a third photosensitive component driving coil, which are respectively arranged under the first coil magnet pair, the second coil magnet pair and the third coil magnet pair; the common magnet of the first photosensitive component driving coil and the first coil magnet pair, and the common magnet of the second photosensitive component driving coil and the second coil magnet pair are used to provide driving force in the x-axis direction, and the common magnet of the third photosensitive component driving coil and the third coil magnet pair are used to provide driving force in the y-axis direction.
其中，在俯视角度下，所述第二基础部的对应于所述感光组件驱动线圈的位置设置缺口或通孔。Wherein, in a top view, a notch or a through hole is provided at a position of the second base portion corresponding to the driving coil of the photosensitive component.
其中，所述共用磁石和所述感光组件驱动线圈构成的磁石线圈对包括：第一线圈磁石对、第二线圈磁石对和第三线圈磁石对；其中，所述第一线圈磁石对与所述第二线圈磁石对用于提供x轴方向上的驱动力；所述第三线圈磁石对用于提供y轴方向上的驱动力；并且在俯视角度下，所述第二驱动部的外轮廓呈矩形，所述第一线圈磁石对与所述第二线圈磁石对分别沿着所述第一驱动部的第一边和第二边布置，所述第一边和所述第二边不相交，而所述第三线圈磁石对沿着所述第二驱动部的第三边布置，所述第三边与所述第一边和所述第二边均相交。所述镜头驱动线圈包括一个x轴镜头驱动线圈和一个y轴镜头驱动线圈，所述x轴镜头驱动线圈位于所述第一线圈磁石对的正上方，所述y轴镜头驱动线圈位于所述第三线圈磁石对的正上方。The magnet coil pair formed by the common magnet and the photosensitive component driving coil includes: a first coil magnet pair, a second coil magnet pair and a third coil magnet pair; wherein the first coil magnet pair and the second coil magnet pair are used to provide driving force in the x-axis direction; the third coil magnet pair is used to provide driving force in the y-axis direction; and in a top view, the outer contour of the second driving part is rectangular, the first coil magnet pair and the second coil magnet pair are arranged along the first side and the second side of the first driving part respectively, the first side and the second side do not intersect, and the third coil magnet pair is arranged along the third side of the second driving part, and the third side intersects with both the first side and the second side. The lens driving coil includes an x-axis lens driving coil and a y-axis lens driving coil, the x-axis lens driving coil is located directly above the first coil magnet pair, and the y-axis lens driving coil is located directly above the third coil magnet pair.
根据本申请的另一方面，还提供了一种摄像模组，其包括：镜头；感光组件；以及前述任一方案中所述的用于光学致动器的驱动结构；其中，所述镜头安装于所述第一驱动部，所述感光组件安装于所述第二驱动部。According to another aspect of the present application, a camera module is also provided, which includes: a lens; a photosensitive component; and a driving structure for an optical actuator as described in any of the preceding schemes; wherein the lens is installed on the first driving part, and the photosensitive component is installed on the second driving part.
其中，所述感光组件包括线路板，所述摄像模组还包括第一连接带和第二连接带，所述第一连接带设置于所述第一驱动部的顶部区域并电连接所述第一驱动部，所述第二连接带与感光组件的线路板连接并导通；其中所述第二连接带设置多个弯折形成弯曲层叠状。Among them, the photosensitive component includes a circuit board, and the camera module also includes a first connecting belt and a second connecting belt, the first connecting belt is arranged in the top area of the first driving part and is electrically connected to the first driving part, and the second connecting belt is connected to and conducted with the circuit board of the photosensitive component; wherein the second connecting belt is provided with multiple bends to form a curved stacked shape.
其中，所述第一驱动部包括第一基础部和第一可动部，所述第二驱动部包括第二基础部和第二可动部；其中所述第二基础部与所述第一基础部固定在一起，所述第二可动部位于所述第二基础部下方并与所述第二基础部活动连接，所述感光组件位于与所述第二可动部下方并固定于所述第二可动部。所述感光组件包括悬挂式线路板，所述悬挂式线路板包括刚性的线路板主体和柔性的连接带，所述连接带从所述线路板主体的第一侧面和第二侧面引出并向上弯折形成弯折部，所述弯折部的顶部在水平方向上沿着所述感光组件的周沿延伸，使得所述连接带围绕在所述感光组件的第一侧面、第二侧面和第三侧面外围，并且位于所述第一侧面、所述第二侧面和所述第三侧面的连接带各自具有至少一个悬持部，所述悬持部固定于所述第二驱动部的所述第二基础部或者通过中介物与所述第二基础部固定；其中，所述感光组件具有与所述线路板主体位置一致的第一侧面和第二侧面，所述第一侧面和所述第二侧面相对布置，所述第三侧面与所述第一侧面和所述第二侧面均相交。The first driving part includes a first base part and a first movable part, and the second driving part includes a second base part and a second movable part; the second base part is fixed to the first base part, the second movable part is located below the second base part and is movably connected to the second base part, and the photosensitive component is located below the second movable part and is fixed to the second movable part. The photosensitive component includes a suspended circuit board, the suspended circuit board includes a rigid circuit board body and a flexible connecting belt, the connecting belt is led out from the first side and the second side of the circuit board body and bent upward to form a bending part, the top of the bending part extends along the circumference of the photosensitive component in the horizontal direction, so that the connecting belt surrounds the first side, the second side and the third side of the photosensitive component, and the connecting belt located on the first side, the second side and the third side each has at least one suspension part, the suspension part is fixed to the second base part of the second driving part or is fixed to the second base part through an intermediary; the photosensitive component has a first side and a second side that are consistent with the position of the circuit board body, the first side and the second side are arranged oppositely, and the third side intersects with both the first side and the second side.
其中，所述悬持部具有悬持孔，所述第二基础部或者所述中介物具有挂钩，所述挂钩勾住所述悬持孔。The suspension part has a suspension hole, and the second base part or the intermediary has a hook, and the hook hooks the suspension hole.
其中，所述连接带包括第三连接带和第四连接带，所述第三连接带自所述线路板主体的所述第一侧面引出并向上弯折形成一个所述弯折部，然后沿着所述感光组件的第一侧面延伸，并在拐角处在水平方向上弯折并继续沿着所述第三侧面延伸；所述第四连接带自所述线路板主体的第二侧面引出并向上弯折形成另一个所述弯折部，然后沿着所述感光组件的所述第二侧面延伸，并在拐角处水平弯折并继续沿着所述第三侧面延伸；所述第三连接带和所述第四连接带在所述第三侧面接合并互相导通；位于所述第三侧面的所述连接带的所述悬持部还连接一第五连接带，所述第五连接带具有用于外接的连接器；所述悬挂式线路板还具有用于固定所述第五连接带的固定部。Wherein, the connecting belt includes a third connecting belt and a fourth connecting belt, the third connecting belt is led out from the first side surface of the circuit board body and bent upward to form a bending portion, and then extends along the first side surface of the photosensitive component, and bends horizontally at the corner and continues to extend along the third side surface; the fourth connecting belt is led out from the second side surface of the circuit board body and bent upward to form another bending portion, and then extends along the second side surface of the photosensitive component, and bends horizontally at the corner and continues to extend along the third side surface; the third connecting belt and the fourth connecting belt are joined on the third side surface and are conductive to each other; the suspension portion of the connecting belt located on the third side surface is also connected to a fifth connecting belt, and the fifth connecting belt has a connector for external connection; the suspended circuit board also has a fixing portion for fixing the fifth connecting belt.
其中，所述感光组件包括线路板，安装于所述线路板表面的感光芯片，安装于所述线路板表面并围绕在所述感光芯片周围的镜座，安装于所述镜座的滤光片，以及安装于所述线路板表面且位于所述镜座外侧的电子元件；所述第二驱动部中，所述第二可动部具有向下延伸的刚性的延伸臂，所述延伸臂与所述感光组件的线路板粘接，所述延伸臂围绕在所述镜座的周围，且所述电子元件位于所述延伸臂的内侧面与所述镜座的外侧面之间的间隙；并且所述感光组件驱动线圈通过FPC与所述线路板电连接，所述FPC附接于所述延伸臂的侧面，并且所述FPC直接焊接于所述线路板。Among them, the photosensitive component includes a circuit board, a photosensitive chip installed on the surface of the circuit board, a mirror seat installed on the surface of the circuit board and surrounding the photosensitive chip, a filter installed on the mirror seat, and an electronic component installed on the surface of the circuit board and located on the outside of the mirror seat; in the second driving part, the second movable part has a rigid extension arm extending downward, the extension arm is bonded to the circuit board of the photosensitive component, the extension arm surrounds the mirror seat, and the electronic component is located in the gap between the inner side surface of the extension arm and the outer side surface of the mirror seat; and the photosensitive component driving coil is electrically connected to the circuit board through an FPC, the FPC is attached to the side of the extension arm, and the FPC is directly soldered to the circuit board.
与现有技术相比，本申请具有下列至少一个技术效果：Compared with the prior art, the present invention has at least one of the following technical effects:
1.本申请能够提高摄像模组的防抖行程，从而可以对摄像模组的较大抖动进行补偿。1. The present application can improve the anti-shake range of the camera module, thereby compensating for the larger shake of the camera module.
2.本申请能够提高摄像模组的防抖响应速度。2. This application can improve the anti-shake response speed of the camera module.
3.本申请的用于光学致动器的驱动结构具有结构紧凑的优势，特别适合于小型化的摄像模组。3. The driving structure for the optical actuator of the present application has the advantage of compact structure and is particularly suitable for miniaturized camera modules.
4.本申请的一些实施例中，可以根据镜头重量、第一驱动部的驱动力、感光芯片(或感光组件)重量、第二驱动部的驱动力等因素进行设定，使得镜头和感光芯片移动到各自防抖目标位置的时间基本一致，从而获得更好的防抖效果。4. In some embodiments of the present application, the settings can be made based on factors such as the weight of the lens, the driving force of the first driving unit, the weight of the photosensitive chip (or photosensitive component), the driving force of the second driving unit, etc., so that the time it takes for the lens and the photosensitive chip to move to their respective anti-shake target positions is basically the same, thereby obtaining a better anti-shake effect.
5.本申请的一些实施例中，可以通过悬挂式线路板来减小连接带对感光组件防抖移动的干扰，从而有效地保障防抖行程和响应速度。5. In some embodiments of the present application, a suspended circuit board can be used to reduce the interference of the connecting belt on the anti-shake movement of the photosensitive component, thereby effectively ensuring the anti-shake stroke and response speed.
6.本申请的一些实施例中，可以通过共用磁石来减小用于第一基础部或第二基础部用于安装磁石所占用的体积，帮助防抖摄像模组实现高度方向上的削减。6. In some embodiments of the present application, the volume occupied by the first base part or the second base part for mounting the magnets can be reduced by sharing magnets, thereby helping the anti-shake camera module to achieve a reduction in height.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1示出了现有技术中一种典型的具有马达的摄像模组；FIG1 shows a typical camera module with a motor in the prior art;
图2示出了本申请一个实施例的具有防抖功能的摄像模组的剖面示意图；FIG2 is a cross-sectional schematic diagram of a camera module with an anti-shake function according to an embodiment of the present application;
图3示出了本申请另一个实施例的具有防抖功能的摄像模组的剖面示意图；FIG3 is a cross-sectional schematic diagram of a camera module with an anti-shake function according to another embodiment of the present application;
图4示出了本申请中四种不同情形下的镜头和感光芯片的移动距离与模组倾斜角度的关系示意图；FIG4 is a schematic diagram showing the relationship between the moving distance of the lens and the photosensitive chip and the module tilt angle under four different situations in the present application;
图5示出了本申请一个实施例中的摄像模组的剖面示意图；FIG5 is a cross-sectional schematic diagram of a camera module in one embodiment of the present application;
图6示出了本申请另一实施例的摄像模组的剖面示意图；FIG6 shows a cross-sectional schematic diagram of a camera module according to another embodiment of the present application;
图7示出了本申请又一个实施例中的摄像模组的剖面示意图；FIG7 shows a cross-sectional schematic diagram of a camera module in yet another embodiment of the present application;
图8示出了本申请再一实施例中的摄像模组的剖面示意图；FIG8 shows a cross-sectional schematic diagram of a camera module in yet another embodiment of the present application;
图9a示出了本申请一个实施例中的第二驱动部的立体示意图；FIG9a shows a perspective schematic diagram of a second driving unit in one embodiment of the present application;
图9b示出了本申请一个实施例中的第二驱动部的立体分解示意图；FIG9 b shows a perspective exploded schematic diagram of a second driving unit in one embodiment of the present application;
图10a示出了本申请一个实施例中的第二驱动部及感光组件的剖面示意图；FIG10 a shows a cross-sectional schematic diagram of a second driving unit and a photosensitive component in one embodiment of the present application;
图10b示出了本申请一个变形实施例中滚珠被设置在可动部下侧的第二驱动部的剖面示意图；FIG10 b shows a cross-sectional schematic diagram of a second driving part in a modified embodiment of the present application, in which the ball is arranged at the lower side of the movable part;
图10c示出了本申请一个变形实施例中具有两层滚珠的第二驱动部的剖面示意图；FIG10c is a cross-sectional schematic diagram showing a second driving part having two layers of balls in a modified embodiment of the present application;
图11a示出了本申请一个实施例中的第二驱动部的剖面示意图；FIG11a shows a cross-sectional schematic diagram of a second driving unit in one embodiment of the present application;
图11b示出了本申请一个实施例中的第二驱动部的组装示意图；FIG. 11 b shows a schematic diagram of assembling a second driving unit in one embodiment of the present application;
图11c示出了本申请另一个实施例中的第二驱动部的剖面示意图；FIG11c shows a cross-sectional schematic diagram of a second driving unit in another embodiment of the present application;
图12示出了本申请又一个实施例中的第二驱动部的剖面示意图；FIG12 shows a cross-sectional schematic diagram of a second driving unit in yet another embodiment of the present application;
图13a示出了本申请一个实施例中的第二驱动部的可动部的仰视示意图；FIG13a is a bottom view schematically showing a movable part of a second driving part in one embodiment of the present application;
图13b示出了本申请另一个实施例中的第二驱动部的可动部的仰视示意图；FIG13 b shows a bottom view of a movable part of a second driving part in another embodiment of the present application;
图14示出了本申请一个实施例中的第二驱动部的驱动元件在仰视角度下的安装位置；FIG14 shows the installation position of the driving element of the second driving unit in an embodiment of the present application at an upward viewing angle;
图15a示出了本申请一个实施例中的第二驱动部的含驱动元件的剖面示意图；FIG15 a shows a cross-sectional schematic diagram of a second driving unit including a driving element in one embodiment of the present application;
图15b示出了本申请一个实施例的摄像模组的剖面示意图；FIG15 b shows a cross-sectional schematic diagram of a camera module according to an embodiment of the present application;
图15c示出了本申请又一个实施例的摄像模组的剖面示意图；FIG15c is a cross-sectional schematic diagram of a camera module according to another embodiment of the present application;
图15d示出了本申请一个变形的实施例的摄像模组的剖面示意图；FIG15d shows a cross-sectional schematic diagram of a camera module according to a modified embodiment of the present application;
图15e示出了第二基础部具有缺口的第二驱动部的立体示意图；FIG15e is a perspective schematic diagram showing a second driving part having a notch in the second base part;
图15f示出了第二基础部具有缺口的第二驱动部的立体分解示意图；FIG15f is a perspective exploded schematic diagram showing a second driving part having a notch in the second base part;
图15g示出了第二基础部具有通孔的第二驱动部的立体示意图；FIG15g is a perspective schematic diagram showing a second driving part having a through hole in the second base part;
图15h示出了第二基础部具有通孔的第二驱动部的立体分解示意图；FIG15h is a perspective exploded schematic diagram showing a second driving part having a through hole in the second base part;
图16a示出了本申请一个实施例中的摄像模组的剖面示意图；FIG16a shows a cross-sectional schematic diagram of a camera module in one embodiment of the present application;
图16b示出了本申请一个实施例中的摄像模组的组装方式的示意图；FIG16b is a schematic diagram showing an assembly method of a camera module in one embodiment of the present application;
图16c示出了本申请另一个实施例中的摄像模组的剖面示意图；FIG16c shows a cross-sectional schematic diagram of a camera module in another embodiment of the present application;
图17示出了本申请一个实施例中的摄像模组及其连接带的布置方式；FIG17 shows the arrangement of the camera module and its connecting belt in one embodiment of the present application;
图18示出了本申请一个实施例中的第二驱动部和感光组件组装后的立体示意图；FIG18 is a perspective schematic diagram showing an assembled second driving unit and a photosensitive component in one embodiment of the present application;
图19示出了本申请一个实施例中的第二驱动部和感光组件的分解示意图；FIG. 19 is an exploded schematic diagram of a second driving unit and a photosensitive component in one embodiment of the present application;
图20示出了本申请一个实施例中的感光组件及其所采用的悬挂式线路板的立体示意图；FIG20 is a three-dimensional schematic diagram of a photosensitive component and a suspended circuit board used therein in one embodiment of the present application;
图21a示出了本申请一个实施例中的悬挂式线路板展开后的正面示意图；FIG21 a shows a front view of a suspended circuit board after it is unfolded in one embodiment of the present application;
图21b示出了本申请一个实施例中的悬挂式线路板展开后的背面示意图。FIG. 21 b shows a schematic diagram of the back side of the suspended circuit board after unfolding in one embodiment of the present application.
具体实施方式DETAILED DESCRIPTION
为了更好地理解本申请，将参考附图对本申请的各个方面做出更详细的说明。应理解，这些详细说明只是对本申请的示例性实施方式的描述，而非以任何方式限制本申请的范围。在说明书全文中，相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
应注意，在本说明书中，第一、第二等的表述仅用于将一个特征与另一个特征区分开来，而不表示对特征的任何限制。因此，在不背离本申请的教导的情况下，下文中讨论的第一主体也可被称作第二主体。It should be noted that in this specification, the expressions of first, second, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Therefore, without departing from the teaching of this application, the first subject discussed below can also be referred to as the second subject.
在附图中，为了便于说明，已稍微夸大了物体的厚度、尺寸和形状。附图仅为示例而并非严格按比例绘制。In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.
还应理解的是，用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”，当在本说明书中使用时表示存在所陈述的特征、整体、步骤、操作、元件和/或部件，但不排除存在或附加有一个或多个其它特征、整体、步骤、操作、元件、部件和/或它们的组合。此外，当诸如“...中的至少一个”的表述出现在所列特征的列表之后时，修饰整个所列特征，而不是修饰列表中的单独元件。此外，当描述本申请的实施方式时，使用“可以”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。It should also be understood that the terms "comprises", "including", "having", "includes" and/or "comprising", when used in this specification, indicate the presence of the stated features, wholes, steps, operations, elements and/or parts, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, parts and/or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.
如在本文中使用的，用语“基本上”、“大约”以及类似的用语用作表近似的用语，而不用作表程度的用语，并且旨在说明将由本领域普通技术人员认识到的、测量值或计算值中的固有偏差。As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation, not degree, and are intended to account for the inherent variations in measurements or calculations that would be recognized by those of ordinary skill in the art.
除非另外限定，否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是，用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义，并且将不被以理想化或过度正式意义解释，除非本文中明确如此限定。Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.
下面结合附图和具体实施例对本发明做进一步地描述。The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.
图2示出了本申请一个实施例的具有防抖功能的摄像模组的剖面示意图。参考图2，本实施例中，所述摄像模组包括镜头10、感光组件20、第一驱动部30和第二驱动部40。其中感光组件20包括感光芯片21。第一驱动部30被配置为可驱动镜头10在x、y两个方向上移动，第二驱动部40被配置为可驱动感光芯片21在x、y两个方向上移动。本实施例中，x、y方向互相垂直，且均与感光组件20的感光面平行。z方向则与感光面的法线方向平行。为便于理解，图2中还示出了基于x、y、z方向所构建的三维直角坐标系。本实施例中，通过控制模块同时驱动镜头10与感光芯片21向相反的方向移动，来实现摄像模组的光学防抖。具体来说，镜头1与感光芯片21被配置为同时驱动，且朝向相反的方向移动，例如镜头10被驱动朝x轴正方向移动，则感光芯片21被驱动朝x轴负方向移动；镜头10被驱动朝向y轴正方向移动，则感光芯片21被驱动朝y轴负方向移动；或者镜头10被驱动在x轴及y轴移动，同时感光芯片21被驱动在x轴及y轴朝向与镜头10移动相反的方向移动，换句话说，当需要同时在x轴及y轴移动时，在xoy平面上镜头10的位移矢量和感光芯片21的位移矢量的方向是相反的。摄像模组通常包括位置传感器，该位置传感器用于检测摄像模组或者终端设备(即搭载该摄像模组的电子设备，例如手机)的抖动。在检测出抖动时，位置传感器发出信号至摄像模组，驱动镜头10和感光芯片21作出相应的移动以补偿所述抖动，从而达到光学防抖的目的。本实施例中，将镜头10和感光芯片21配置为同时移动，且镜头10和感光芯片21移动方向相反，可以实现更快速的响应，具有更好的防抖效果更好。另外，通常摄像模组的防抖角度范围受悬挂系统和驱动系统的限制，无法做到比较大的补偿角度范围，本实施例中，通过同时驱动镜头10和感光芯片21在相反的方向上移动，实现了大角度的抖动补偿。另外，本实施例中通过同时驱动镜头10或及感光芯片21朝相反的方向移动，相比仅驱动镜头10移动的方案，镜头10与感光芯片21之间具有更大的相对移动的行程(为便于描述，可将这个相对移动的行程简称为防抖行程)，可以具有较好的补偿效果。尤其是，由于防抖行程的增加，本实施例对于摄像模组的倾斜抖动也具有较好的补偿效果。进一步地，本实施例的防抖移动的移动方向可以限定在xoy平面内，不需要使镜头10的光轴或者感光芯片21倾斜，从而避免了防抖移动所造成的像糊问题。FIG2 shows a cross-sectional schematic diagram of a camera module with an anti-shake function according to an embodiment of the present application. Referring to FIG2 , in this embodiment, the camera module includes a lens 10, a photosensitive component 20, a first drive unit 30, and a second drive unit 40. The photosensitive component 20 includes a photosensitive chip 21. The first drive unit 30 is configured to drive the lens 10 to move in the x and y directions, and the second drive unit 40 is configured to drive the photosensitive chip 21 to move in the x and y directions. In this embodiment, the x and y directions are perpendicular to each other and are parallel to the photosensitive surface of the photosensitive component 20. The z direction is parallel to the normal direction of the photosensitive surface. For ease of understanding, FIG2 also shows a three-dimensional rectangular coordinate system constructed based on the x, y, and z directions. In this embodiment, the optical anti-shake of the camera module is achieved by simultaneously driving the lens 10 and the photosensitive chip 21 to move in opposite directions through the control module. Specifically, the lens 1 and the photosensitive chip 21 are configured to be driven simultaneously and move in opposite directions. For example, when the lens 10 is driven to move in the positive direction of the x-axis, the photosensitive chip 21 is driven to move in the negative direction of the x-axis; when the lens 10 is driven to move in the positive direction of the y-axis, the photosensitive chip 21 is driven to move in the negative direction of the y-axis; or the lens 10 is driven to move in the x-axis and y-axis, and the photosensitive chip 21 is driven to move in the x-axis and y-axis in the opposite direction to the movement of the lens 10. In other words, when it is necessary to move in the x-axis and y-axis at the same time, the displacement vector of the lens 10 and the displacement vector of the photosensitive chip 21 on the xoy plane are opposite. The camera module usually includes a position sensor, which is used to detect the jitter of the camera module or the terminal device (i.e., an electronic device equipped with the camera module, such as a mobile phone). When the jitter is detected, the position sensor sends a signal to the camera module to drive the lens 10 and the photosensitive chip 21 to make corresponding movements to compensate for the jitter, thereby achieving the purpose of optical image stabilization. In this embodiment, the lens 10 and the photosensitive chip 21 are configured to move simultaneously, and the movement directions of the lens 10 and the photosensitive chip 21 are opposite, which can achieve a faster response and better anti-shake effect. In addition, the anti-shake angle range of the camera module is usually limited by the suspension system and the drive system, and a relatively large compensation angle range cannot be achieved. In this embodiment, by simultaneously driving the lens 10 and the photosensitive chip 21 to move in opposite directions, large-angle shake compensation is achieved. In addition, in this embodiment, by simultaneously driving the lens 10 or the photosensitive chip 21 to move in opposite directions, compared with the solution of only driving the lens 10 to move, the lens 10 and the photosensitive chip 21 have a larger relative movement stroke (for the convenience of description, this relative movement stroke can be referred to as the anti-shake stroke), which can have a better compensation effect. In particular, due to the increase in the anti-shake stroke, this embodiment also has a better compensation effect for the tilt shake of the camera module. Furthermore, the moving direction of the anti-shake movement of this embodiment can be limited to the xoy plane, and there is no need to tilt the optical axis of the lens 10 or the photosensitive chip 21, thereby avoiding the image blur problem caused by the anti-shake movement.
进一步地，在本申请的另一实施例中，所述感光芯片21还可以被第二驱动部40驱动在xoy平面内旋转，从而实现对摄像模组旋转方向上抖动的补偿。Furthermore, in another embodiment of the present application, the photosensitive chip 21 can also be driven by the second driving unit 40 to rotate in the xoy plane, thereby compensating for the jitter in the rotation direction of the camera module.
进一步地，仍然参考图2，在本申请的一个实施例中，摄像模组包括第一驱动部30、镜头10、第二驱动部40和感光组件20。所述镜头10安装于所述第一驱动部30。该第一驱动部30可以具有一个筒形的第一马达载体，该第一马达载体可以作为第一驱动部的可动部，镜头安装于第一马达载体的内侧面。第一驱动部还具有一静止部，或称为基础部。本实施例中，基础部可以被实施为马达壳体。该马达壳体可以包括一底座和一盖体。底座具有通光孔。所述可动部与所述基础部活动连接。驱动元件可以是线圈磁铁组合，其可以安装于可动部和基础部之间。例如可以安装于第一马达载体和马达壳体之间。实际上，本实施例中的第一驱动部可以直接采用现有技术中的光学防抖马达的常见结构。进一步地，本实施例中，第二驱动部40可以承靠并固定于所述第一驱动部30的底面。第二驱动部40也可以包括基础部和可动部。其中基础部与所述第一驱动部直接连接。可动部位于基础部的下方并与基础部可活动连接。感光组件20包括线路板23、安装于线路板表面的感光芯片21以及围绕在感光芯片21周围的镜座22。所述镜座22的底部可以安装于所述线路板23表面，其顶面可以固定于所述第二驱动部40的可动部。所述镜座22的中央具有通光孔，并且一滤光片24安装于所述镜座22(滤光片24也可以视为所述感光组件20的一个组成部分)。在所述第二驱动部40的可动部的带动下，所述感光组件20可以相对于所述基础部在x、y方向上平移或者在xoy平面上旋转。为便于描述，本文中有时将第一驱动部30的基础部称为第一基础部，将第二驱动部40的基础部称为第二基础部，将第一驱动部30的可动部称为第一可动部，将第二驱动部40的可动部称为第二可动部。Further, still referring to FIG. 2, in one embodiment of the present application, the camera module includes a first drive unit 30, a lens 10, a second drive unit 40 and a photosensitive component 20. The lens 10 is mounted on the first drive unit 30. The first drive unit 30 may have a cylindrical first motor carrier, which may serve as a movable part of the first drive unit, and the lens is mounted on the inner side of the first motor carrier. The first drive unit also has a stationary part, or a base part. In this embodiment, the base part may be implemented as a motor housing. The motor housing may include a base and a cover. The base has a light-through hole. The movable part is movably connected to the base part. The driving element may be a coil magnet combination, which may be installed between the movable part and the base part. For example, it may be installed between the first motor carrier and the motor housing. In fact, the first drive unit in this embodiment may directly adopt the common structure of the optical image stabilization motor in the prior art. Further, in this embodiment, the second drive unit 40 may be supported and fixed on the bottom surface of the first drive unit 30. The second drive unit 40 may also include a base part and a movable part. The base is directly connected to the first driving part. The movable part is located below the base and is movably connected to the base. The photosensitive component 20 includes a circuit board 23, a photosensitive chip 21 mounted on the surface of the circuit board, and a lens holder 22 surrounding the photosensitive chip 21. The bottom of the lens holder 22 can be mounted on the surface of the circuit board 23, and its top surface can be fixed to the movable part of the second driving part 40. The center of the lens holder 22 has a light hole, and a filter 24 is mounted on the lens holder 22 (the filter 24 can also be regarded as a component of the photosensitive component 20). Driven by the movable part of the second driving part 40, the photosensitive component 20 can translate in the x and y directions or rotate on the xoy plane relative to the base. For ease of description, the base of the first driving part 30 is sometimes referred to as the first base, the base of the second driving part 40 is referred to as the second base, the movable part of the first driving part 30 is referred to as the first movable part, and the movable part of the second driving part 40 is referred to as the second movable part.
图3示出了本申请另一个实施例的具有防抖功能的摄像模组的剖面示意图。本实施例中，摄像模组包括第一驱动部30、镜头10、第二驱动部40和感光组件20。所述镜头10安装于所述第一驱动部30。第一驱动部30和镜头10的结构和组装方式可以与图2所示的前一实施例一致，不再赘述。本实施例与前一实施例的区别在于：所述第二驱动部40位于感光组件20内部。本实施例中，感光组件20包括线路板23、镜座22、滤光片24、感光芯片21。所述镜座22的底部可以安装于所述线路板23表面，其顶面可以固定于所述第一驱动部30的基础部。所述镜座22的中央具有通光孔，并且一滤光片24安装于所述镜座22。镜座22、滤光片24、线路板23可形成一空腔，感光芯片21位于该空腔25中。本实施例中，第二驱动部40也可以位于所述空腔25中。具体来说，第二驱动部40的基础部可以安装于所述线路板23的表面，第二驱动部40的可动部则与所述基础部可活动连接。感光芯片21则安装于所述可动部的表面。这样，感光芯片21可以在第二驱动部40的可动部的带动下，相对于所述基础部在x、y方向上平移或者在xoy平面上旋转。FIG3 shows a cross-sectional schematic diagram of a camera module with an anti-shake function according to another embodiment of the present application. In this embodiment, the camera module includes a first drive unit 30, a lens 10, a second drive unit 40 and a photosensitive component 20. The lens 10 is mounted on the first drive unit 30. The structure and assembly method of the first drive unit 30 and the lens 10 can be consistent with the previous embodiment shown in FIG2, and will not be repeated. The difference between this embodiment and the previous embodiment is that the second drive unit 40 is located inside the photosensitive component 20. In this embodiment, the photosensitive component 20 includes a circuit board 23, a lens holder 22, a filter 24, and a photosensitive chip 21. The bottom of the lens holder 22 can be mounted on the surface of the circuit board 23, and its top surface can be fixed to the base of the first drive unit 30. The center of the lens holder 22 has a light hole, and a filter 24 is mounted on the lens holder 22. The lens holder 22, the filter 24, and the circuit board 23 can form a cavity, and the photosensitive chip 21 is located in the cavity 25. In this embodiment, the second driving part 40 may also be located in the cavity 25. Specifically, the base of the second driving part 40 may be mounted on the surface of the circuit board 23, and the movable part of the second driving part 40 may be movably connected to the base. The photosensitive chip 21 is mounted on the surface of the movable part. In this way, the photosensitive chip 21 may be driven by the movable part of the second driving part 40 to translate in the x and y directions or rotate in the xoy plane relative to the base.
以上结合两个实施例描述了本申请的所述摄像模组的第二驱动部在结构上的不同实现方式。下面进一步地介绍基于本申请的设计思路，实现对摄像模组倾斜抖动的补偿的方法。The above describes different structural implementations of the second driving unit of the camera module of the present application in combination with two embodiments. The following further introduces a method for compensating for tilt jitter of the camera module based on the design concept of the present application.
图4示出了本申请中四种不同情形下的镜头和感光芯片的移动距离与模组倾斜角度的关系示意图。图中位置A代表用于补偿摄像模组抖动角度a的镜头和感光芯片的移动距离组合。如图4所示，图中镜头移动距离为b，感光芯片(下文中有时简称为芯片)移动距离为c，镜头或者芯片移动距离可等效为光学成像时像面偏离光轴的角度。具体来说，当镜头在xoy平面平移距离为b时，其造成像面偏移角度α1与像距之间具有一算术关系，像距在不同拍摄距离下是不同的，为了计算以及表述方便，这里像距用像方焦距代替。具体的，其造成像面偏移角度α1与镜头像方焦距f之间的关系为：tan(α1)＝b/f，当感光芯片在xoy平面平移距离为c时，其造成像面偏移角度α2与镜头像方焦距f之间的关系为：tan(α2)＝c/f。本实施例中，镜头和感光芯片的移动方向相反，因此摄像模组综合补偿角度a的计算方式为：a＝α1+α2＝arctan(b/f)+arctan(c/f)。在一个实施例中，镜头和感光芯片的移动距离可以设置成相同，即b＝c。在另一个实施例中，镜头与感光芯片移动的距离可以被设置为不相等，例如镜头移动的距离可以大于感光芯片移动的距离，即b>c。该实施例中，第二驱动部可选择尺寸较小的驱动器(如mems驱动器等，此类驱动器的可移动行程通常也相对较小)，以帮助摄像模组整体上实现小型化。FIG4 is a schematic diagram showing the relationship between the moving distance of the lens and the photosensitive chip and the module tilt angle under four different situations in the present application. Position A in the figure represents the moving distance combination of the lens and the photosensitive chip used to compensate for the camera module shake angle a. As shown in FIG4 , the moving distance of the lens in the figure is b, and the moving distance of the photosensitive chip (hereinafter sometimes referred to as the chip) is c. The moving distance of the lens or the chip can be equivalent to the angle at which the image plane deviates from the optical axis during optical imaging. Specifically, when the lens is translated by a distance b in the xoy plane, there is an arithmetic relationship between the image plane offset angle α1 and the image distance, and the image distance is different at different shooting distances. For the convenience of calculation and expression, the image distance is replaced by the image side focal length here. Specifically, the relationship between the image plane offset angle α1 and the image side focal length f of the lens is: tan(α1)=b/f. When the photosensitive chip is translated by a distance c in the xoy plane, the relationship between the image plane offset angle α2 and the image side focal length f of the lens is: tan(α2)=c/f. In this embodiment, the movement directions of the lens and the photosensitive chip are opposite, so the calculation method of the comprehensive compensation angle a of the camera module is: a=α1+α2=arctan(b/f)+arctan(c/f). In one embodiment, the movement distances of the lens and the photosensitive chip can be set to be the same, that is, b=c. In another embodiment, the movement distances of the lens and the photosensitive chip can be set to be unequal, for example, the movement distance of the lens can be greater than the movement distance of the photosensitive chip, that is, b>c. In this embodiment, the second drive unit can select a smaller driver (such as a MEMS driver, etc., the movable stroke of such a driver is usually relatively small) to help the camera module as a whole to achieve miniaturization.
进步一地，在本申请的一个实施例中，镜头移动距离和感光芯片移动距离之比可选的设置为保持固定比例，如b/c＝6:4，或者b/c＝7:3，或者b/c＝5:5，无论摄像模组抖动的补偿值(例如综合补偿角度a)是多少，镜头和感光芯片移动的距离都保持该预设比例，有利于在摄像模组在可补偿范围内的补偿效果均匀，也有利于减小摄像模组防抖系统驱动逻辑模块的设计难度。Furthermore, in one embodiment of the present application, the ratio of the lens moving distance and the photosensitive chip moving distance can be optionally set to maintain a fixed ratio, such as b/c=6:4, or b/c=7:3, or b/c=5:5. No matter what the compensation value of the camera module jitter (for example, the comprehensive compensation angle a) is, the distance moved by the lens and the photosensitive chip maintains the preset ratio, which is beneficial to uniform compensation effect within the compensable range of the camera module, and is also beneficial to reducing the design difficulty of the camera module anti-shake system driving logic module.
进一步地，在镜头移动距离和感光芯片移动距离基于固定比例进行防抖移动的配置下，由于感光芯片的可移动范围较小，有时摄像模组的抖动可能超出感光芯片的最大移动行程。因此，在本申请的一个实施例中，可以设置一个防抖阈值，例如对于需要补偿的抖动角度a，可以设置一阈值K，当实际计算出的抖动角度a小于等于防抖阈值K时，镜头移动距离b与感光芯片移动距离c保持在固定比例，该固定比例可以预先设置，例如b/c＝6:4，或者b/c＝7:3，或者b/c＝5:5。而当当实际计算出的抖动角度a大于防抖阈值K时，感光芯片移动距离c取其移动行程的最大值，即感光芯片最大行程cmax，而镜头移动距离b＝tan(a/f)-cmax。换句话说，当摄像模组需要补偿的抖动角度在防抖阈值K以上时，基于预设的固定比例，镜头移动到对应于感光芯片移动距离最大值(即感光芯片最大行程cmax)的位置后，第一驱动部可以驱动镜头继续移动，直到镜头移动距离b＝tan(a/f)-cmax。而与此同时，感光芯片先同步地向相反方向移动到感光芯片移动距离最大值cmax，然后保持不动。Furthermore, in a configuration where the lens moving distance and the photosensitive chip moving distance are based on a fixed ratio for anti-shake movement, due to the small movable range of the photosensitive chip, sometimes the shaking of the camera module may exceed the maximum moving stroke of the photosensitive chip. Therefore, in one embodiment of the present application, an anti-shake threshold can be set. For example, for the shake angle a that needs to be compensated, a threshold K can be set. When the actually calculated shake angle a is less than or equal to the anti-shake threshold K, the lens moving distance b and the photosensitive chip moving distance c are maintained at a fixed ratio. The fixed ratio can be preset, for example, b/c=6:4, or b/c=7:3, or b/c=5:5. When the actually calculated shake angle a is greater than the anti-shake threshold K, the photosensitive chip moving distance c takes the maximum value of its moving stroke, that is, the photosensitive chip maximum stroke cmax , and the lens moving distance b=tan(a/f)-cmax . In other words, when the camera module needs to compensate for a shaking angle above the anti-shake threshold K, based on a preset fixed ratio, after the lens moves to a position corresponding to the maximum moving distance of the photosensitive chip (i.e., the maximum travel of the photosensitive chip cmax ), the first driving unit can drive the lens to continue moving until the lens moves a distance b=tan(a/f)-cmax . Meanwhile, the photosensitive chip first synchronously moves in the opposite direction to the maximum moving distance of the photosensitive chip cmax , and then remains stationary.
进一步地，在本申请的另一个实施例中，在xoy平面内，镜头移动的最大行程bmax所对应的防抖角度(该防抖角度指摄像模组倾斜抖动的角度)可以小于感光芯片最大行程cmax所对应的防抖角度。这种设计下，摄像模组的防抖系统可以具有较快的响应速度。高端镜头中，镜头往往具有较多的镜片数，例如目前智能手机中后置主摄的镜头中的镜片数目可以达到8片，为了进一步地提高成像质量，有的镜头中还使用了玻璃镜片，这些都导致镜头重量较大。当驱动力没有明显增大时，驱动装置驱动镜头移动的速度将下降。而感光芯片或者感光组件的重量相对较轻，可以以较小的驱动力达到预设位置。因此，本实施例的方案中，可以更好地利用感光芯片或感光组件重量相对较近，移动速度相对较快的优势，有效地提高摄像模组防抖系统的响应速度。Further, in another embodiment of the present application, in the xoy plane, the anti-shake angle corresponding to the maximum stroke bmax of the lens movement (the anti-shake angle refers to the angle of the tilt shake of the camera module) can be less than the anti-shake angle corresponding to the maximum stroke cmax of the photosensitive chip. Under this design, the anti-shake system of the camera module can have a faster response speed. In high-end lenses, the lens often has a large number of lenses. For example, the number of lenses in the rear main camera lens of the current smartphone can reach 8. In order to further improve the imaging quality, some lenses also use glass lenses, which all lead to a large weight of the lens. When the driving force does not increase significantly, the speed at which the driving device drives the lens to move will decrease. The weight of the photosensitive chip or the photosensitive component is relatively light, and it can reach the preset position with a small driving force. Therefore, in the scheme of this embodiment, the advantages of the relatively close weight and relatively fast movement speed of the photosensitive chip or the photosensitive component can be better utilized to effectively improve the response speed of the camera module anti-shake system.
进一步地，在本申请的另一实施例中，所述镜头移动距离和所述感光芯片移动距离的固定比例可以根据镜头重量、第一驱动部的驱动力、感光芯片(或感光组件)重量、第二驱动部的驱动力等因素进行设定，设定合适的固定比例，可以使得镜头和感光芯片移动到各自防抖目标位置的时间基本一致，从而获得更好的防抖效果。具体来说，镜头重量和第一驱动部的驱动力可以基本决定镜头的移动速度，而感光芯片(或感光组件)重量和第二驱动部的驱动力可以基本决定感光芯片的移动速度，当镜头的移动速度小于感光芯片的移动速度(例如镜头重量较大的情形)时，在设定所述的固定比例时，感光芯片的移动距离可以占有较大的比例，这样可以利用感光芯片移动速度较快的特点，使得该感光芯片移动更长的距离，让镜头和感光芯片移动到各自防抖目标位置的时间基本一致。Further, in another embodiment of the present application, the fixed ratio of the lens moving distance and the photosensitive chip moving distance can be set according to factors such as the lens weight, the driving force of the first driving unit, the photosensitive chip (or photosensitive component) weight, and the driving force of the second driving unit. By setting a suitable fixed ratio, the time for the lens and the photosensitive chip to move to their respective anti-shake target positions can be basically consistent, thereby obtaining a better anti-shake effect. Specifically, the lens weight and the driving force of the first driving unit can basically determine the moving speed of the lens, while the photosensitive chip (or photosensitive component) weight and the driving force of the second driving unit can basically determine the moving speed of the photosensitive chip. When the moving speed of the lens is less than the moving speed of the photosensitive chip (for example, when the lens weight is large), when setting the fixed ratio, the moving distance of the photosensitive chip can occupy a larger proportion. In this way, the photosensitive chip can be moved a longer distance by utilizing the characteristic of the faster moving speed of the photosensitive chip, so that the time for the lens and the photosensitive chip to move to their respective anti-shake target positions is basically consistent.
进一步地，在本申请的另一实施例中，所述第一驱动部可以采用具有较大驱动力的驱动元件，以及具有大行程的悬挂系统。例如第一驱动部可以采用SMA(形状记忆合金)元件进行驱动。相比传统的线圈磁铁组合，SMA元件可以以较小的占用空间提供较大的驱动力，因此第一驱动部可以设计得更紧凑，有利于摄像模组的小型化。Furthermore, in another embodiment of the present application, the first driving unit may use a driving element with a large driving force and a suspension system with a large stroke. For example, the first driving unit may be driven by an SMA (shape memory alloy) element. Compared with the traditional coil magnet combination, the SMA element can provide a larger driving force with a smaller occupied space, so the first driving unit can be designed to be more compact, which is conducive to the miniaturization of the camera module.
进一步地，图5示出了本申请一个实施例中的摄像模组的剖面示意图。参考图5，本实施例中，第二驱动部40的第二基础部41与第一驱动部30的基础部(图5中未具体示出)固定在一起。镜头10可以安装于第一驱动部30的可动部(例如第一马达载体，图5中未具体示出)。感光组件20包括线路板23、感光芯片21、镜座22、滤光片24等。感光组件20可以安装于第二驱动部40的第二可动部42。具体来说，第二可动部42的底面可以承靠于感光组件20的镜座22的顶面。其中，在第二驱动部40中，第二基础部41与第二可动部42之间可以通过悬挂系统弹性连接。本实施例中，悬挂系统允许第二可动部42相对于第二基础部41在xoy平面平移。可选地，悬挂系统可以为滚珠系统，其优势是：在z方向上，第二可动部42和第二基础部41通过滚珠相接触，第二可动部42仅在xoy平面内移动，而在光轴方向上的移动可以被第二可动部42和第二基础部41之间的滚珠所阻止，从而避免对摄像模组的对焦产生影响。Further, FIG5 shows a cross-sectional schematic diagram of a camera module in an embodiment of the present application. Referring to FIG5, in this embodiment, the second base portion 41 of the second drive unit 40 is fixed to the base portion of the first drive unit 30 (not specifically shown in FIG5). The lens 10 can be mounted on the movable portion of the first drive unit 30 (for example, the first motor carrier, not specifically shown in FIG5). The photosensitive component 20 includes a circuit board 23, a photosensitive chip 21, a lens seat 22, a filter 24, etc. The photosensitive component 20 can be mounted on the second movable portion 42 of the second drive unit 40. Specifically, the bottom surface of the second movable portion 42 can be supported on the top surface of the lens seat 22 of the photosensitive component 20. Among them, in the second drive unit 40, the second base portion 41 and the second movable portion 42 can be elastically connected by a suspension system. In this embodiment, the suspension system allows the second movable portion 42 to translate relative to the second base portion 41 in the xoy plane. Optionally, the suspension system can be a ball system, which has the advantage that in the z direction, the second movable part 42 and the second base part 41 are in contact through the balls, and the second movable part 42 only moves in the xoy plane, while the movement in the optical axis direction can be prevented by the balls between the second movable part 42 and the second base part 41, thereby avoiding affecting the focus of the camera module.
可选地，在另一实施例中，所述悬挂系统可以包含一弹性元件(如弹簧)，固定部与可动部通过该弹性元件进行连接，其允许可动部相对于基础部在xoy平面平移，但阻止可动部相对于基础部在xoy平面以外的移动。相比于滚珠系统，设置弹性元件的优点是：该弹性元件可以在基础部和可动部之间提供一初始力，该初始力与驱动元件的驱动力相配合即可控制可动部移动的距离或者保持其位置，无需另外设置驱动元件提供共轭驱动力来控制可动部的位置。如果采用滚珠系统，在驱动元件不提供驱动力的情形下，可动部相对于基础部在xoy方向上是自由移动的，因此往往需要提供至少一对互相反向的驱动力才可控制可动部的保持在其初始位置。Optionally, in another embodiment, the suspension system may include an elastic element (such as a spring), and the fixed part and the movable part are connected by the elastic element, which allows the movable part to translate relative to the base part in the xoy plane, but prevents the movable part from moving relative to the base part outside the xoy plane. Compared with the ball system, the advantage of setting the elastic element is that the elastic element can provide an initial force between the base and the movable part, and the initial force can control the distance moved by the movable part or maintain its position by cooperating with the driving force of the driving element, without the need to set up a driving element to provide a conjugate driving force to control the position of the movable part. If a ball system is used, when the driving element does not provide a driving force, the movable part is free to move in the xoy direction relative to the base part, so it is often necessary to provide at least a pair of mutually opposite driving forces to control the movable part to remain in its initial position.
进一步地，仍然参考图5，在本申请的一个实施例中，可以通过驱动整个感光组件20移动来实现防抖。同时，线路板23、感光芯片21、镜座22、滤光片24封装为一体，线路板23、镜座22、滤光片24形成一封闭空间，感光芯片21容纳于该封闭空间，提升了感光组件20的封闭性，保证了在摄像模组制作或者使用过程中感光芯片21成像不受灰尘的影响。Further, still referring to FIG. 5 , in one embodiment of the present application, anti-shake can be achieved by driving the entire photosensitive component 20 to move. At the same time, the circuit board 23, the photosensitive chip 21, the lens holder 22, and the filter 24 are packaged as a whole, and the circuit board 23, the lens holder 22, and the filter 24 form a closed space, and the photosensitive chip 21 is accommodated in the closed space, which improves the closedness of the photosensitive component 20 and ensures that the imaging of the photosensitive chip 21 is not affected by dust during the production or use of the camera module.
本实施例中，仍然参考图5，在本申请的一个实施例中，所述线路板的背面可以直接承靠于终端设备(即搭载所述摄像模组的电子设备，例如手机)，具体来说，线路板23的背面可以承靠于终端设备的主板或者其他承靠件90。虽然本实施例中将第二可动部42连接于感光组件20、将第二基础部41连接于第一驱动部30，但可以理解的是，第二可动部42与第二基础部41的移动是相对的。防抖移动中，移动方向相反是指：第一驱动部的可动部相对于其基础部的移动方向，与第二驱动部的可动部相对于其基础部的移动方向是相反的。In this embodiment, still referring to FIG. 5, in one embodiment of the present application, the back side of the circuit board can be directly supported on the terminal device (i.e., the electronic device equipped with the camera module, such as a mobile phone). Specifically, the back side of the circuit board 23 can be supported on the mainboard or other supporting member 90 of the terminal device. Although the second movable part 42 is connected to the photosensitive component 20 and the second base part 41 is connected to the first driving part 30 in this embodiment, it can be understood that the movement of the second movable part 42 and the second base part 41 are relative. In the anti-shake movement, the opposite movement direction means that the movement direction of the movable part of the first driving part relative to its base part is opposite to the movement direction of the movable part of the second driving part relative to its base part.
进一步地，图6示出了本申请另一实施例的摄像模组的剖面示意图。参考图6，本实施例中，第二驱动部40的下方增加了一后壳49，该后壳49与所述第二驱动部40的第二基础部41连接，并形成一容纳腔，将第二驱动部40的第二可动部42和感光组件20均容纳于该容纳腔中。如图6，感光组件20与后壳49底部之间可以具有一间隙49a。即感光组件20悬空，该感光组件20仅与第二驱动部40的第二可动部42连接。本实施例中，后壳49直接承靠于终端设备。由于后壳49连接了终端设备和第二驱动部40以及第一驱动部30的基础部，因此在防抖过程中，以终端设备为参照物，第一驱动部30和第二驱动部40的可动部分别同时驱动镜头10和感光组件20朝向相反的方向移动。进一步地，本实施例中，第二驱动部40的第二可动部42直接与感光组件20的上端面粘接，这样可以将滤光片24与外部空间隔开，从而避免第二可动部42在相对于第二基础部41移动的过程中摩擦或者碰撞产生的碎屑直接落到滤色片24表面。Further, FIG. 6 shows a cross-sectional schematic diagram of a camera module of another embodiment of the present application. Referring to FIG. 6, in this embodiment, a rear shell 49 is added below the second drive unit 40, and the rear shell 49 is connected to the second base portion 41 of the second drive unit 40, and forms a housing cavity, and the second movable portion 42 of the second drive unit 40 and the photosensitive component 20 are both accommodated in the housing cavity. As shown in FIG. 6, there may be a gap 49a between the photosensitive component 20 and the bottom of the rear shell 49. That is, the photosensitive component 20 is suspended, and the photosensitive component 20 is only connected to the second movable portion 42 of the second drive unit 40. In this embodiment, the rear shell 49 is directly supported by the terminal device. Since the rear shell 49 connects the terminal device and the second drive unit 40 and the base portion of the first drive unit 30, during the anti-shake process, with the terminal device as a reference, the movable portions of the first drive unit 30 and the second drive unit 40 respectively drive the lens 10 and the photosensitive component 20 to move in opposite directions at the same time. Furthermore, in the present embodiment, the second movable portion 42 of the second driving portion 40 is directly bonded to the upper end surface of the photosensitive component 20, so that the filter 24 can be separated from the external space, thereby preventing the debris generated by friction or collision when the second movable portion 42 moves relative to the second base portion 41 from falling directly onto the surface of the color filter 24.
图7示出了本申请又一个实施例中的摄像模组的剖面示意图。参考图7，本实施例中，第一驱动部30被实施为适于驱动镜头10在光轴方向上移动以实现对焦功能，同时还适于驱动镜头10在xoy平面内移动以实现防抖功能。可选地，第一驱动部30至少包括两个载体，分别是第一载体31与第二载体32，镜头10承靠于第一载体31，第一载体31与第二载体32之间设置有悬挂系统，第二载体32与第一驱动部30的外壳33之间设置有悬挂系统。本实施例中第一载体31与第二载体32之间的悬挂系统(即第一悬挂系统)设置为滚珠系统，第二载体32与外壳33之间的悬挂系统(即第二悬挂系统)为基于弹性元件(如弹片)的悬挂系统。本实施例中，第二悬挂系统设置在第一悬挂系统外侧，第一悬挂系统允许镜头10和第一载体31在xoy平面内平移以实现防抖功能，第二悬挂系统允许镜头10、第一载体31和第二载体32整体地在光轴方向上移动以实现对焦功能。可选地，在另一实施例中，第二悬挂系统也可以设置在第一悬挂系统内侧。在另一变形的实施例中，第二悬挂系统还可以设置在第一悬挂系统下方。本实施例中，悬挂系统是指将两个部件可活动连接，且二者的相对移动的自由度(即移动方向)受到一定限制的系统。这两个可活动连接的部件可以分别称为基础部和可动部。通常来说，悬挂系统与驱动元件(例如SMA元件或者线圈磁铁组合)配合使用。其中，由驱动元件提供驱动力，在该驱动力的作用下，可动部相对于基础部在悬挂系统所限定的移动方向上移动。FIG7 shows a cross-sectional schematic diagram of a camera module in another embodiment of the present application. Referring to FIG7, in this embodiment, the first drive unit 30 is implemented to be suitable for driving the lens 10 to move in the direction of the optical axis to achieve a focusing function, and is also suitable for driving the lens 10 to move in the xoy plane to achieve an anti-shake function. Optionally, the first drive unit 30 includes at least two carriers, namely a first carrier 31 and a second carrier 32, the lens 10 is supported on the first carrier 31, a suspension system is provided between the first carrier 31 and the second carrier 32, and a suspension system is provided between the second carrier 32 and the housing 33 of the first drive unit 30. In this embodiment, the suspension system between the first carrier 31 and the second carrier 32 (i.e., the first suspension system) is set as a ball system, and the suspension system between the second carrier 32 and the housing 33 (i.e., the second suspension system) is a suspension system based on an elastic element (such as a spring). In this embodiment, the second suspension system is arranged outside the first suspension system, the first suspension system allows the lens 10 and the first carrier 31 to translate in the xoy plane to achieve the anti-shake function, and the second suspension system allows the lens 10, the first carrier 31 and the second carrier 32 to move as a whole in the direction of the optical axis to achieve the focusing function. Optionally, in another embodiment, the second suspension system can also be arranged inside the first suspension system. In another deformed embodiment, the second suspension system can also be arranged below the first suspension system. In this embodiment, the suspension system refers to a system in which two components are movably connected, and the freedom of relative movement of the two components (i.e., the direction of movement) is subject to certain restrictions. The two movably connected components can be respectively referred to as the base and the movable part. Generally speaking, the suspension system is used in conjunction with a driving element (such as an SMA element or a coil magnet combination). Among them, the driving element provides a driving force, and under the action of the driving force, the movable part moves relative to the base in the moving direction defined by the suspension system.
进一步地，图8示出了本申请再一实施例中的摄像模组的剖面示意图。参考图8，本实施例的所述第二驱动部40的可动部可设置一向下延伸的延伸臂42a，该延伸臂42a与感光组件20的线路板23进行粘接。延伸臂42a上可以设置FPC板42b，该FPC板42b可以直接焊接于线路板23，从而使安装于可动部的驱动元件与线路板23电导通。本实施例可以避免感光组件20与可动部粘接时胶水流到滤光片上，从而影响成像。另外，本实施例中，感光组件20的上端面(即顶端)与第二驱动部40具有一间隙，可以避免滤色片被划伤或者碰碎。Further, FIG8 shows a cross-sectional schematic diagram of a camera module in another embodiment of the present application. Referring to FIG8 , the movable portion of the second driving portion 40 of this embodiment may be provided with an extension arm 42a extending downward, and the extension arm 42a is bonded to the circuit board 23 of the photosensitive component 20. An FPC board 42b may be provided on the extension arm 42a, and the FPC board 42b may be directly welded to the circuit board 23, so that the driving element installed on the movable portion is electrically conductive with the circuit board 23. This embodiment can prevent the glue from flowing onto the filter when the photosensitive component 20 is bonded to the movable portion, thereby affecting the imaging. In addition, in this embodiment, the upper end surface (i.e., the top) of the photosensitive component 20 and the second driving portion 40 have a gap, which can prevent the color filter from being scratched or broken.
进一步地，图9a示出了本申请一个实施例中的第二驱动部的立体示意图，图9b示出了本申请一个实施例中的第二驱动部的立体分解示意图。参考图9a和图9b，本实施例中，第二驱动部40的第二可动部42和第二基础部41的中央均具有通光孔，经过镜头的光线通过该通光孔入射感光芯片并成像。本实施例中，滚珠80优选为四个，分别设置在第二驱动部40的四角处(指俯视角度下的四角位置)。Further, FIG. 9a shows a perspective schematic diagram of the second driving unit in one embodiment of the present application, and FIG. 9b shows a perspective exploded schematic diagram of the second driving unit in one embodiment of the present application. Referring to FIG. 9a and FIG. 9b, in this embodiment, the second movable portion 42 of the second driving unit 40 and the center of the second base portion 41 both have a light-through hole, and the light passing through the lens enters the photosensitive chip through the light-through hole and forms an image. In this embodiment, there are preferably four balls 80, which are respectively arranged at the four corners of the second driving unit 40 (referring to the four corners in a top-down view).
进一步地，图10a示出了本申请一个实施例中的第二驱动部及感光组件的剖面示意图。参考图10a，本实施例中，所述第二驱动部40包括第二可动部42和第二基础部41，其中第二基础部41包括基底41a和盖41b。所述盖41b包括自基底41a向下延伸而形成环绕所述第二可动部42的侧壁41c和自侧壁41c水平向内延伸而形成的承靠台41d。所述侧壁41c的顶部连接所述基底41a，所述第二可动部42的边缘区域42a的下表面可以承靠于所述承靠台41d的上表面。滚珠80及第二可动部42的边缘区域42a被夹持于基底41a和盖41b的承靠台41d之间，保证了第二可动部42和第二基础部41在光轴方向上(即z轴方向)不会产生相对移动。这样，所述第二驱动部40仅允许第二可动部42相对于第二基础部41在xoy平面内平移。更具体地，所述基底41a和所述盖41b之间设置至少一容纳空间，该容纳空间设置滚珠80，第二可动部42与基底41a分别紧贴滚珠80，从而保证第二可动部42与第二基础部41在光轴方向上不产生相对移动。第二可动部42可以包括主体部42b和边缘区域42a，所述边缘区域42a的厚度可以小于所述主体部42b的厚度。所述主体部42b的下表面(也可以称为下端面或底面)可以低于所述盖41b的下表面(也可以称为下端面或底面)，从而保证感光组件20在贴附到第二可动部42后不会接触到盖41b，避免感光组件20进行防抖移动时碰到或者摩擦到盖。Further, FIG. 10a shows a cross-sectional schematic diagram of the second driving part and the photosensitive component in one embodiment of the present application. Referring to FIG. 10a, in this embodiment, the second driving part 40 includes a second movable part 42 and a second base part 41, wherein the second base part 41 includes a base 41a and a cover 41b. The cover 41b includes a side wall 41c extending downward from the base 41a to form a surrounding of the second movable part 42 and a support platform 41d extending horizontally inward from the side wall 41c. The top of the side wall 41c is connected to the base 41a, and the lower surface of the edge area 42a of the second movable part 42 can be supported on the upper surface of the support platform 41d. The ball 80 and the edge area 42a of the second movable part 42 are clamped between the base 41a and the support platform 41d of the cover 41b, ensuring that the second movable part 42 and the second base part 41 will not move relative to each other in the optical axis direction (i.e., the z-axis direction). In this way, the second driving part 40 only allows the second movable part 42 to translate relative to the second base part 41 in the xoy plane. More specifically, at least one accommodating space is provided between the base 41a and the cover 41b, and the accommodating space is provided with a ball 80, and the second movable part 42 and the base 41a are respectively close to the ball 80, so as to ensure that the second movable part 42 and the second base part 41 do not produce relative movement in the optical axis direction. The second movable part 42 may include a main body 42b and an edge area 42a, and the thickness of the edge area 42a may be less than the thickness of the main body 42b. The lower surface of the main body 42b (also referred to as the lower end surface or bottom surface) may be lower than the lower surface of the cover 41b (also referred to as the lower end surface or bottom surface), so as to ensure that the photosensitive component 20 will not contact the cover 41b after being attached to the second movable part 42, and avoid the photosensitive component 20 from touching or rubbing against the cover when performing anti-shake movement.
进一步地，仍然参考图10a，在本申请的一个实施例中，所述第二基础部41的上表面可以具有台阶结构，所述台阶结构可以包括位于外侧的第一台阶面41e和位于内侧的第二台阶面41f，第二台阶面41f的高度低于第一台阶面41e的高度，从而为摄像模组的对焦提供较大的轴向(即z轴方向)移动空间。本实施例中，第一驱动部可安装于第二驱动部40的第二基础部41的所述第一台阶面41e。第二可动部42的边缘区域42a的上表面可以形成凹槽，该凹槽可以容纳滚珠80并限制滚珠80在凹槽内移动，同时也能将滚珠80与第二可动部42或者第二基础部41摩擦而产生的碎屑留在凹槽内。并且，由于可将滚珠80放置于凹槽内，第二可动部42、第二基础部41的基底41a和盖41b在进行组装时可以更加便利。而在另一实施例中，所述凹槽的位于外侧的凸台可以取消，这种设计可减小第二驱动部的横向尺寸，有利于摄像模组的小型化。由于所述凹槽的位于外侧的凸台被取消，此时凹槽实际上退化为凹陷台阶，该凹陷台阶的外侧台阶面低于内侧台阶面，并且该凹陷台阶与盖的侧壁以及基底共同形成用于容纳滚珠的容纳腔。Further, still referring to Figure 10a, in one embodiment of the present application, the upper surface of the second base portion 41 may have a step structure, and the step structure may include a first step surface 41e located on the outside and a second step surface 41f located on the inside, and the height of the second step surface 41f is lower than the height of the first step surface 41e, thereby providing a larger axial (i.e., z-axis direction) moving space for focusing the camera module. In this embodiment, the first drive unit can be mounted on the first step surface 41e of the second base portion 41 of the second drive unit 40. A groove may be formed on the upper surface of the edge area 42a of the second movable portion 42, which can accommodate the ball 80 and limit the movement of the ball 80 in the groove, and at the same time, the debris generated by the friction between the ball 80 and the second movable portion 42 or the second base portion 41 can be left in the groove. In addition, since the ball 80 can be placed in the groove, the base 41a and the cover 41b of the second movable portion 42 and the second base portion 41 can be more convenient when assembling. In another embodiment, the boss located on the outside of the groove can be eliminated. This design can reduce the lateral size of the second driving part, which is conducive to the miniaturization of the camera module. Since the boss located on the outside of the groove is eliminated, the groove is actually degenerated into a concave step, the outer step surface of the concave step is lower than the inner step surface, and the concave step, the side wall of the cover and the base together form a receiving cavity for receiving the ball.
进一步地，在本申请的一个实施例中，所述可动部的边缘区域可以设置多个凹槽，凹槽的数量可以与滚珠数量匹配。每个所述滚珠分别容纳于对应的凹槽内。凹槽的底面可以是平面，这样可以保证可动部在平移时不会倾斜，同时，仅通过单层滚珠即可实现可动部与基础部之间在xoy平面内三个轴上相对移动。可选地，所述基底的与可动部凹槽对应的位置处也可以设置基底凹槽。在滚珠直径一定的情况下，这种设计能够减小第二驱动部的厚度。并且，所述凹槽的底面或者凹陷台阶的底面(指凹陷台阶的外侧台阶面)为平面，可以容许可动部相对于基础部在xoy平面内旋转，即绕z轴旋转。绕z轴旋转方向可称为Rz方向，也可以称为Rz轴旋转。本实施例中，感光芯片可以在x、y、Rz三个方向上移动以实现防抖，因此具有更好的防抖能力。由于x、y、Rz三个移动方向均处于xoy平面内，因此前文所述的在xoy平面内三个轴上相对移动，也就是指在x、y、Rz三个方向上的移动。Further, in one embodiment of the present application, a plurality of grooves may be provided in the edge area of the movable part, and the number of the grooves may match the number of balls. Each of the balls is accommodated in a corresponding groove. The bottom surface of the groove may be a plane, so that the movable part will not tilt during translation, and at the same time, the relative movement between the movable part and the base part on three axes in the xoy plane can be achieved only by a single layer of balls. Optionally, a base groove may also be provided at a position of the base corresponding to the groove of the movable part. When the ball diameter is constant, this design can reduce the thickness of the second driving part. Moreover, the bottom surface of the groove or the bottom surface of the recessed step (referring to the outer step surface of the recessed step) is a plane, which allows the movable part to rotate relative to the base part in the xoy plane, that is, to rotate around the z-axis. The direction of rotation around the z-axis may be referred to as the Rz direction, or may be referred to as the Rz-axis rotation. In this embodiment, the photosensitive chip may move in the three directions of x, y, and Rz to achieve anti-shake, and therefore has better anti-shake capability. Since the three moving directions of x, y, and Rz are all in the xoy plane, the relative movement on the three axes in the xoy plane mentioned above refers to the movement in the three directions of x, y, and Rz.
图10b示出了本申请一个变形实施例中滚珠被设置在可动部下侧的第二驱动部的剖面示意图。参考图10b，本实施例中，滚珠80位于盖41b的承靠台41d和第二可动部42之间。在滚珠80对应位置处，第二可动部42的边缘区域42a和/或承靠台41d可以设置凹槽，凹槽的槽底面可以设置为平面，从而允许第二可动部42相对于第二基础部41仅在xoy平面内移动，并且在xoy平面内移动时不产生倾斜。FIG10b shows a cross-sectional schematic diagram of a second driving part in which a ball is arranged on the lower side of the movable part in a modified embodiment of the present application. Referring to FIG10b, in this embodiment, the ball 80 is located between the support platform 41d of the cover 41b and the second movable part 42. At the corresponding position of the ball 80, a groove can be provided in the edge area 42a and/or the support platform 41d of the second movable part 42, and the bottom surface of the groove can be set as a plane, so as to allow the second movable part 42 to move only in the xoy plane relative to the second base part 41, and no tilt occurs when moving in the xoy plane.
图10c示出了本申请一个变形实施例中具有两层滚珠的第二驱动部的剖面示意图。本实施例中，设置两层滚珠81和82。具体来说，基底41a与第二可动部42之间设置一层滚珠81，第二可动部42与盖41b的承靠台41d之间设置一层滚珠82。相比图10a所示的实施例，本实施例由于在第二可动部42和承靠台41d之间增加了一层滚珠82，所以第二可动部42在防抖移动时不会直接与承靠台41d摩擦，减少了碎屑的产生。并且通过设置两层滚珠81和82可以减小第二可动部42在移动时的阻力。FIG10c shows a cross-sectional schematic diagram of a second driving part with two layers of balls in a modified embodiment of the present application. In this embodiment, two layers of balls 81 and 82 are provided. Specifically, a layer of balls 81 is provided between the base 41a and the second movable part 42, and a layer of balls 82 is provided between the second movable part 42 and the supporting platform 41d of the cover 41b. Compared with the embodiment shown in FIG10a, since a layer of balls 82 is added between the second movable part 42 and the supporting platform 41d in this embodiment, the second movable part 42 will not directly rub against the supporting platform 41d during anti-shake movement, thereby reducing the generation of debris. In addition, by providing two layers of balls 81 and 82, the resistance of the second movable part 42 during movement can be reduced.
进一步地，图11a示出了本申请一个实施例中的第二驱动部的剖面示意图。参考图11a，本实施例中，第二可动部42的外侧面设置向内凹陷的卡槽42c，第二基础部41的盖41b的承靠台41d嵌合进所述卡槽42c内。这种方案中，第二驱动部40的下端面可以具有较大的面积，镜座22与第二可动部42贴附时，胶水可以设置在镜座22更外侧的区域，从而使胶水尽量远离滤光片，减小了胶水流到滤光片24上的风险，同时也完全避免了镜座22在防抖移动过程中摩擦到第二基础部41的风险。进步一地，本实施例中，第二可动部42可以是分体式的，例如第二可动部42可以包括可动部第一构件43与第二可动部第二构件44，可动部第二构件44和/或可动部第一构件43侧面向内凹陷形成所述卡槽42c。进一步地，图11b示出了本申请一个实施例中的第二驱动部的组装示意图。结合参考图11a和图11b，在第二驱动部42的组装过程中，可以先将可动部第一构件43、第二基础部41和滚珠80组装完成，再将可动部第二构件44贴附于可动部第一构件43的下端面。这种设计下，镜座贴附时无需担心胶水会接触基础部，同时胶水也可以设置在镜座靠近边缘的地方(不必避让四角的基础部)避免胶水污染滤色片。Further, FIG. 11a shows a cross-sectional schematic diagram of the second driving part in an embodiment of the present application. Referring to FIG. 11a, in this embodiment, the outer side surface of the second movable part 42 is provided with an inwardly recessed slot 42c, and the supporting platform 41d of the cover 41b of the second base part 41 is embedded in the slot 42c. In this scheme, the lower end surface of the second driving part 40 can have a larger area, and when the mirror base 22 is attached to the second movable part 42, the glue can be set in the area further outside the mirror base 22, so that the glue is as far away from the filter as possible, reducing the risk of the glue flowing onto the filter 24, and also completely avoiding the risk of the mirror base 22 rubbing against the second base part 41 during the anti-shake movement. In a further step, in this embodiment, the second movable part 42 can be split, for example, the second movable part 42 can include a movable part first member 43 and a second movable part second member 44, and the movable part second member 44 and/or the movable part first member 43 are recessed inward to form the slot 42c. Further, FIG. 11b shows a schematic diagram of the assembly of the second driving part in one embodiment of the present application. Referring to FIG. 11a and FIG. 11b, in the assembly process of the second driving part 42, the first movable member 43, the second base 41 and the ball 80 can be assembled first, and then the second movable member 44 can be attached to the lower end surface of the first movable member 43. Under this design, there is no need to worry about the glue contacting the base when attaching the mirror base, and the glue can also be set near the edge of the mirror base (no need to avoid the base at the four corners) to avoid glue contamination of the color filter.
可选地，图11c示出了本申请另一个实施例中的第二驱动部的剖面示意图。参考图11c，本实施例中，所述第二可动部42可以是一体成型的，即卡槽42c直接在第二可动部42成型时形成。而盖41b可以是分体式的。参考图11b，盖41b可以包括两个分体的盖构件41b1和41b2，这两个分体的盖构件41b1和41b2可以分别从左右两边横向插入所述第二可动部42的卡槽42c，以固定第二可动部42和第二基础部41的轴向(即z轴方向)位置，进而完成第二驱动部40的封装。Optionally, Figure 11c shows a cross-sectional schematic diagram of the second driving part in another embodiment of the present application. Referring to Figure 11c, in this embodiment, the second movable part 42 can be integrally formed, that is, the slot 42c is directly formed when the second movable part 42 is formed. And the cover 41b can be split. Referring to Figure 11b, the cover 41b can include two split cover members 41b1 and 41b2, and the two split cover members 41b1 and 41b2 can be laterally inserted into the slot 42c of the second movable part 42 from the left and right sides, respectively, to fix the axial (i.e., z-axis direction) position of the second movable part 42 and the second base part 41, thereby completing the packaging of the second driving part 40.
进一步地，图12示出了本申请又一个实施例中的第二驱动部的剖面示意图。参考图12，本实施例中，所述第二可动部42的外侧面设置向内凹陷的卡槽42c，第二基础部41的承靠台41d和滚珠80均设置于该卡槽内。Further, Fig. 12 shows a cross-sectional schematic diagram of the second driving part in another embodiment of the present application. Referring to Fig. 12, in this embodiment, the outer side surface of the second movable part 42 is provided with an inwardly recessed slot 42c, and the supporting platform 41d of the second base part 41 and the ball 80 are both arranged in the slot.
进步一地，在本申请的一个实施例中，可动部粘接感光组件的镜座上端面，从而实现可动部与感光组件的连接。在变形的实施例中，所述可动部也可设置为具有一向下延伸的延伸臂，并通过所述延伸臂粘接感光组件的线路板，从而实现可动部与感光组件的连接。结合参考图8，在可动部的延伸臂42a粘接线路板23的方案中，可选地，镜座可以选择为高度较低的小镜座22a，小镜座22a仅用于安装感光芯片24，将高度较高的电子元件25如电容等设置于感光芯片21和小镜座22a的外侧。这种方案可以降低镜座高度，从而降低摄像模组的后焦，进而减小了模组的整体高度。而本实施方式中由于至少部分电子元件设置在镜座外侧，优选地，第二驱动部40的可动部的外侧面具有所述卡槽，以便将延伸臂设置在第二驱动部的边缘处，使得延伸臂尽量远离电子元件，避免胶水对电子元件产生影响。As a step forward, in one embodiment of the present application, the movable part is bonded to the upper end surface of the lens holder of the photosensitive component, thereby realizing the connection between the movable part and the photosensitive component. In a deformed embodiment, the movable part can also be configured to have an extension arm extending downward, and the circuit board of the photosensitive component is bonded to the extension arm, thereby realizing the connection between the movable part and the photosensitive component. In conjunction with reference to Figure 8, in the scheme in which the extension arm 42a of the movable part is bonded to the circuit board 23, optionally, the lens holder can be selected as a small lens holder 22a with a lower height, and the small lens holder 22a is only used to install the photosensitive chip 24, and the electronic components 25 with a higher height, such as capacitors, are arranged on the outside of the photosensitive chip 21 and the small lens holder 22a. This scheme can reduce the height of the lens holder, thereby reducing the back focus of the camera module, and then reducing the overall height of the module. In the present embodiment, since at least part of the electronic components are arranged outside the mirror base, preferably, the outer side surface of the movable part of the second driving part 40 has the said slot, so that the extension arm can be arranged at the edge of the second driving part, so that the extension arm is as far away from the electronic components as possible to avoid the glue from affecting the electronic components.
图13a示出了本申请一个实施例中的第二驱动部的可动部的仰视示意图。本实施例中，胶水50设置于第二可动部42的下端面与感光组件的镜座上端面之间。胶水50的布设可以避开四角区域，以避免胶水50渗漏到位于四角的滚珠容纳结构的缝隙，对防抖移动造成负面影响。同时，还可以避免第二可动部42的边缘过于靠近滤光片，降低胶水污染滤光片的风险。图13b示出了本申请另一个实施例中的第二驱动部的可动部的仰视示意图。本实施例中，胶水50可以沿着第二可动部42下端面的边缘区域布置成一个封闭的圈。这种设计可以增加感光组件的封闭性，避免灰尘掉落至滤色片上。FIG. 13a shows a schematic diagram of a movable part of a second driving part in an embodiment of the present application from an upward view. In the present embodiment, glue 50 is disposed between the lower end surface of the second movable part 42 and the upper end surface of the lens holder of the photosensitive component. The layout of the glue 50 can avoid the four corner areas to prevent the glue 50 from leaking into the gaps of the ball receiving structures located at the four corners, which has a negative impact on the anti-shake movement. At the same time, it can also prevent the edge of the second movable part 42 from being too close to the filter, reducing the risk of glue contaminating the filter. FIG. 13b shows a schematic diagram of a movable part of a second driving part in another embodiment of the present application from an upward view. In the present embodiment, the glue 50 can be arranged into a closed circle along the edge area of the lower end surface of the second movable part 42. This design can increase the closedness of the photosensitive component and prevent dust from falling onto the color filter.
需注意，以上实施例可互相结合，例如11a、图11b以及图12所示的卡槽设计可以与双层滚珠设计相结合。其中，凹槽/凹陷台阶可设置在承靠台上也可设置在可动部上。It should be noted that the above embodiments can be combined with each other, for example, the slot design shown in FIG11a, FIG11b and FIG12 can be combined with the double-layer ball design. The groove/recessed step can be arranged on the supporting platform or on the movable part.
进一步地，图14示出了本申请一个实施例中的第二驱动部的驱动元件在仰视角度下的安装位置。图15a示出了本申请一个实施例中的第二驱动部的含驱动元件的剖面示意图。本实施例中，磁石61可以设置在第二基础部41的边缘区域，线圈62可以设置在第二可动部42的边缘区域42a。线圈62可通过设置在第二可动部42的FPC板(软板)，FPC板与感光组件20的线路板23焊接导通。由于第二可动部42和感光组件20在防抖过程中是同步移动的，所以将线圈62通过FPC板焊接到线路板23能保证移动过程中导线或者焊接部没有相对运动，减小了焊接处电连接失效或接触不良的风险。本实施例中，磁石可以设置在第二基础部41的基底41a。Further, Figure 14 shows the installation position of the driving element of the second driving part in an embodiment of the present application at an upward viewing angle. Figure 15a shows a cross-sectional schematic diagram of the driving element of the second driving part in an embodiment of the present application. In this embodiment, the magnet 61 can be arranged in the edge area of the second base part 41, and the coil 62 can be arranged in the edge area 42a of the second movable part 42. The coil 62 can be connected by welding the FPC board (soft board) arranged on the second movable part 42 to the circuit board 23 of the photosensitive component 20. Since the second movable part 42 and the photosensitive component 20 move synchronously during the anti-shake process, welding the coil 62 to the circuit board 23 through the FPC board can ensure that there is no relative movement of the wire or the welding part during the movement, reducing the risk of electrical connection failure or poor contact at the welding point. In this embodiment, the magnet can be arranged on the base 41a of the second base part 41.
进一步地，图15b示出了本申请一个实施例的摄像模组的剖面示意图。参考图14和图15b，本申请的一个实施例中，第一驱动部30和第二驱动部40的驱动元件均为线圈磁石组合，且所述第一驱动部30和所述第二驱动部40可以具有共用磁石61’。所述共用磁石61’可以设置于所述第一基础部31，也可以设置与所述第二基础部41(如图15b)。为便于描述，将第一驱动部30的线圈称为镜头驱动线圈62a，将第二驱动部40的线圈称为感光组件驱动线圈62b。镜头驱动线圈62a安装于第一可动部32，感光组件驱动线圈62b安装于第二可动部42。本实施例中，所述第一驱动部30通过所述镜头驱动线圈62a和所述共用磁石61’的电磁感应，来驱动所述镜头10在x轴和y轴方向平移，所述第二驱动部40通过所述感光组件驱动线圈62b和所述共用磁石61’的电磁感应，来驱动感光芯片在所述x轴和所述y轴方向平移。进一步地，本实施例中，所述共用磁石61’设置在所述第二基础部41的边缘区域，所述镜头驱动线圈62a设置在所述第二可动部42的边缘区域。为便于描述，所述第二驱动部40中，将所述共用磁石61’和所述感光组件驱动线圈62b称为的线圈磁石组合。结合参考图14，本实施例中，在俯视角度下，线圈磁石组合包括第一线圈磁石对63、第二线圈磁石对64和第三线圈磁石对65；其中，所述第一线圈磁石对63与所述第二线圈磁石对64用于提供x轴方向上的驱动力；所述第三线圈磁石对65用于提供y轴方向上的驱动力。在俯视角度下，所述第二驱动部40的外形呈矩形，所述第一线圈磁石对61与所述第二线圈磁石对62分别沿着所述第二驱动部40的第一边48和第二边49布置，所述第一边48和所述第二边49不相交。所述第二线圈磁石对63沿着所述第二驱动部40的第三边47布置，所述第三边47与所述第一边48和所述第二边49均相交。对应地，本实施例中，所述镜头驱动线圈包括分别设置在所述第一线圈磁石对63、第二线圈磁石对64和第三线圈磁石对65上方的第一镜头驱动线圈62a1、第二镜头驱动线圈62a2和第三镜头驱动线圈(图15b中未示出，其俯视角度下的位置可以参考图14中的第三线圈磁石对65的位置)。所述第一镜头驱动线圈62a1与所述第一线圈磁石对63的所述共用磁石61’，以及所述第二镜头驱动线圈62a2与所述第二线圈磁石对64的所述共用磁石61’用于提供x轴方向上的驱动力，所述第三镜头驱动线圈与所述第三线圈磁石对65的所述共用磁石61’用于提供y轴方向上的驱动力。Furthermore, FIG. 15b shows a cross-sectional schematic diagram of a camera module according to an embodiment of the present application. Referring to FIG. 14 and FIG. 15b, in an embodiment of the present application, the driving elements of the first driving unit 30 and the second driving unit 40 are both coil-magnet combinations, and the first driving unit 30 and the second driving unit 40 may have a common magnet 61'. The common magnet 61' may be arranged on the first base portion 31, or may be arranged on the second base portion 41 (as shown in FIG. 15b). For ease of description, the coil of the first driving unit 30 is referred to as a lens driving coil 62a, and the coil of the second driving unit 40 is referred to as a photosensitive component driving coil 62b. The lens driving coil 62a is mounted on the first movable portion 32, and the photosensitive component driving coil 62b is mounted on the second movable portion 42. In this embodiment, the first driving unit 30 drives the lens 10 to translate in the x-axis and y-axis directions through the electromagnetic induction of the lens driving coil 62a and the common magnet 61', and the second driving unit 40 drives the photosensitive chip to translate in the x-axis and y-axis directions through the electromagnetic induction of the photosensitive component driving coil 62b and the common magnet 61'. Further, in this embodiment, the common magnet 61' is arranged at the edge area of the second base part 41, and the lens driving coil 62a is arranged at the edge area of the second movable part 42. For the convenience of description, in the second driving unit 40, the common magnet 61' and the photosensitive component driving coil 62b are referred to as a coil-magnet combination. In conjunction with reference to FIG14, in this embodiment, in a top-down view, the coil magnet combination includes a first coil magnet pair 63, a second coil magnet pair 64 and a third coil magnet pair 65; wherein the first coil magnet pair 63 and the second coil magnet pair 64 are used to provide a driving force in the x-axis direction; and the third coil magnet pair 65 is used to provide a driving force in the y-axis direction. In a top-down view, the second drive unit 40 has a rectangular shape, and the first coil magnet pair 61 and the second coil magnet pair 62 are arranged along the first side 48 and the second side 49 of the second drive unit 40, respectively, and the first side 48 and the second side 49 do not intersect. The second coil magnet pair 63 is arranged along the third side 47 of the second drive unit 40, and the third side 47 intersects with both the first side 48 and the second side 49. Correspondingly, in this embodiment, the lens driving coil includes a first lens driving coil 62a1, a second lens driving coil 62a2 and a third lens driving coil (not shown in FIG. 15b, and their positions in a top view can refer to the position of the third coil magnet pair 65 in FIG. 14) which are respectively arranged above the first coil magnet pair 63, the second coil magnet pair 64 and the third coil magnet pair 65. The first lens driving coil 62a1 and the common magnet 61' of the first coil magnet pair 63, and the second lens driving coil 62a2 and the common magnet 61' of the second coil magnet pair 64 are used to provide driving force in the x-axis direction, and the third lens driving coil and the common magnet 61' of the third coil magnet pair 65 are used to provide driving force in the y-axis direction.
进一步地，图15c示出了本申请又一个实施例的摄像模组的剖面示意图。参考图14和图15c。本实施例中，所述第一基础部31可以包括一位于所述第一可动部32下方的马达底座31a，所述马达底座31a具有通光孔。本实施例中，所述共用磁石61’安装于所述马达底座31a的边缘区域；所述第一可动部32呈筒状，所述镜头驱动线圈安装于所述第一可动部32的内侧面，所述镜头驱动线圈62a(例如第一镜头驱动线圈62a1、第二镜头驱动线圈62a2)安装于所述第一可动部32的底部。本实施例中，所述共用磁石61’和所述镜头驱动线圈62a构成的磁石线圈对包括第一线圈磁石对63、第二线圈磁石对64和第三线圈磁石对65(结合参考图14)；其中，所述第一线圈磁石对63与所述第二线圈磁石64对用于提供x轴方向上的驱动力；所述第三线圈磁石对65用于提供y轴方向上的驱动力；并且在俯视角度下，所述第一驱动部的外轮廓呈矩形，所述第一线圈磁石对63与所述第二线圈磁石64对分别沿着所述第一驱动部30的第一边和第二边布置，所述第一边和所述第二边不相交，而所述第三线圈磁石65对沿着所述第一驱动部30的第三边布置，所述第三边与所述第一边和所述第二边均相交。所述感光组件驱动线圈62b包括分别设置在所述第一线圈磁石对63、第二线圈磁石对64和第三线圈磁石对65下方的第一感光组件驱动线圈、第二感光组件驱动线圈和第三感光组件驱动线圈；所述第一感光组件驱动线圈与所述第一线圈磁石对的所述共用磁石，以及所述第二感光组件驱动线圈与所述第二线圈磁石对的所述共用磁石用于提供感光组件20在x轴方向上的驱动力，所述第三感光组件驱动线圈与所述第三线圈磁石对的所述共用磁石用于提供感光组件20在y轴方向上的驱动力。Furthermore, FIG15c shows a cross-sectional schematic diagram of a camera module according to another embodiment of the present application. Refer to FIG14 and FIG15c. In this embodiment, the first base portion 31 may include a motor base 31a located below the first movable portion 32, and the motor base 31a has a light-through hole. In this embodiment, the common magnet 61' is installed on the edge area of the motor base 31a; the first movable portion 32 is cylindrical, the lens drive coil is installed on the inner side surface of the first movable portion 32, and the lens drive coil 62a (for example, the first lens drive coil 62a1, the second lens drive coil 62a2) is installed on the bottom of the first movable portion 32. In this embodiment, the magnet coil pair formed by the common magnet 61' and the lens driving coil 62a includes a first coil magnet pair 63, a second coil magnet pair 64 and a third coil magnet pair 65 (combined with reference to Figure 14); wherein, the first coil magnet pair 63 and the second coil magnet pair 64 are used to provide driving force in the x-axis direction; the third coil magnet pair 65 is used to provide driving force in the y-axis direction; and in a top-down view, the outer contour of the first driving part is rectangular, the first coil magnet pair 63 and the second coil magnet pair 64 are respectively arranged along the first side and the second side of the first driving part 30, the first side and the second side do not intersect, and the third coil magnet pair 65 is arranged along the third side of the first driving part 30, and the third side intersects with both the first side and the second side. The photosensitive component driving coil 62b includes a first photosensitive component driving coil, a second photosensitive component driving coil and a third photosensitive component driving coil, which are respectively arranged under the first coil magnet pair 63, the second coil magnet pair 64 and the third coil magnet pair 65; the common magnet of the first photosensitive component driving coil and the first coil magnet pair, and the common magnet of the second photosensitive component driving coil and the second coil magnet pair are used to provide a driving force for the photosensitive component 20 in the x-axis direction, and the common magnet of the third photosensitive component driving coil and the third coil magnet pair is used to provide a driving force for the photosensitive component 20 in the y-axis direction.
进一步地，在本申请的一个变形的实施例中，所述第一驱动部中，第一镜头驱动线圈和第二镜头驱动线圈可以省去一个，即第一驱动部的第一基础部可以仅安装第一镜头驱动线圈或仅安装第二镜头驱动线圈来提供x轴方向上的驱动力。本实施例中，镜头不需要绕z轴旋转的移动自由度，而保留第一镜头驱动线圈和第三镜头驱动线圈，即可实现x轴和y轴的移动。具体来说，本实施例中，所述共用磁石和所述感光组件驱动线圈构成的磁石线圈对包括：第一线圈磁石对、第二线圈磁石对和第三线圈磁石对；其中，所述第一线圈磁石对与所述第二线圈磁石对用于提供x轴方向上的驱动力；所述第三线圈磁石对用于提供y轴方向上的驱动力；并且在俯视角度下，所述第二驱动部的外轮廓呈矩形，所述第一线圈磁石对与所述第二线圈磁石对分别沿着所述第一驱动部的第一边和第二边布置，所述第一边和所述第二边不相交，而所述第三线圈磁石对沿着所述第二驱动部的第三边布置，所述第三边与所述第一边和所述第二边均相交。所述镜头驱动线圈包括一个x轴镜头驱动线圈和一个y轴镜头驱动线圈，所述x轴镜头驱动线圈可以位于所述第一线圈磁石对的正上方，所述y轴镜头驱动线圈可以位于所述第三线圈磁石对的正上方。而第二线圈磁石对的正上方可以不布置镜头驱动线圈。这种设计可以减少第一可动部的镜头驱动线圈的数目，将有助于降低实现第一可动部的线圈与感光组件的线路板的电连接的难度，从而使工艺成本降低，也有助于提升生产良率。同时由于通过第二可动部的Rz移动自由度(即绕z轴旋转的自由度)，本实施例仍然能够实现感光芯片与电子终端设备(例如手机)之间的在Rz自由度上的相对旋转。Further, in a modified embodiment of the present application, in the first driving unit, one of the first lens driving coil and the second lens driving coil can be omitted, that is, the first base of the first driving unit can only install the first lens driving coil or only install the second lens driving coil to provide the driving force in the x-axis direction. In this embodiment, the lens does not need the freedom of movement to rotate around the z-axis, and the movement of the x-axis and y-axis can be achieved by retaining the first lens driving coil and the third lens driving coil. Specifically, in this embodiment, the magnet coil pair formed by the common magnet and the photosensitive component drive coil includes: a first coil magnet pair, a second coil magnet pair and a third coil magnet pair; wherein the first coil magnet pair and the second coil magnet pair are used to provide driving force in the x-axis direction; the third coil magnet pair is used to provide driving force in the y-axis direction; and in a top view, the outer contour of the second drive unit is rectangular, the first coil magnet pair and the second coil magnet pair are arranged along the first side and the second side of the first drive unit respectively, the first side and the second side do not intersect, and the third coil magnet pair is arranged along the third side of the second drive unit, and the third side intersects with both the first side and the second side. The lens drive coil includes an x-axis lens drive coil and a y-axis lens drive coil, the x-axis lens drive coil can be located directly above the first coil magnet pair, and the y-axis lens drive coil can be located directly above the third coil magnet pair. The lens drive coil may not be arranged directly above the second coil magnet pair. This design can reduce the number of lens drive coils of the first movable part, which will help reduce the difficulty of achieving electrical connection between the coils of the first movable part and the circuit board of the photosensitive component, thereby reducing process costs and helping to improve production yield. At the same time, due to the Rz degree of freedom of movement (i.e., the degree of freedom of rotation around the z-axis) of the second movable part, this embodiment can still achieve relative rotation between the photosensitive chip and the electronic terminal device (such as a mobile phone) in the Rz degree of freedom.
更进一步地，图15d示出了本申请一个变形的实施例的摄像模组的剖面示意图。可以将本实施例视为图15c实施例的变形。参考图15d，本实施例中，所述共用磁石安装于所述第一基础部的底部(例如安装于马达底座)。这种设计下，第一驱动部中的镜头驱动线圈62a和共用磁石61’之间的距离较小，可以增加第一驱动部的线圈磁石对的驱动力。然而，共用磁石61’与第二驱动部的线圈(感光组件驱动线圈62b)的距离可能相对较大。因此，本实施例中，可以在第二基础部41的对应于共用磁石61’的位置设置缺口68或者通孔69(即通过镂空结构使得在俯视角度下感光组件驱动线圈不被所述第二基础部所遮挡)，以避免因第二基础部41的阻挡而减小共用磁石61’与感光组件驱动线圈62b之间的电磁作用力。本实施例中，所述的缺口68或通孔69是指在第二基础部上镂空部分区块而形成的镂空结构。进一步地，图15e示出了第二基础部具有缺口的第二驱动部的立体示意图，图15f示出了第二基础部具有缺口的第二驱动部的立体分解示意图。参考图15e和图15f，可以看出，缺口68指至少一侧未被第二基础部的非镂空区块所包围的镂空结构。例如，当线圈设置在紧靠第二驱动部的外侧面的位置时，可以将第二基础部的对应于该线圈的边缘区块镂空，形成所述的缺口。所述感光组件驱动线圈可以是所述第一感光组件驱动线圈、所述第二感光组件驱动线圈和所述第三感光组件驱动线圈中的任意一个或多个。图15g示出了第二基础部具有通孔的第二驱动部的立体示意图，图15h示出了第二基础部具有通孔的第二驱动部的立体分解示意图。参考图15g和图15h，可以看出，通孔69是指四周仍被第二基础部41的非镂空区块包围的镂空结构。本实施例中，所述第二基础部41的基底41b位于马达底座31a和第二可动部42之间，因此所述的缺口68或通孔69位于第二基础部41的基底41b。需注意，这里通孔69是指边缘区域的用于避让磁石磁场的通孔，并未位于中央的通光孔。Furthermore, FIG. 15d shows a cross-sectional schematic diagram of a camera module of a variant embodiment of the present application. This embodiment can be regarded as a variant of the embodiment of FIG. 15c. Referring to FIG. 15d, in this embodiment, the common magnet is installed at the bottom of the first base part (for example, installed at the motor base). Under this design, the distance between the lens drive coil 62a and the common magnet 61' in the first drive part is small, which can increase the driving force of the coil magnet pair of the first drive part. However, the distance between the common magnet 61' and the coil of the second drive part (photosensitive component drive coil 62b) may be relatively large. Therefore, in this embodiment, a notch 68 or a through hole 69 can be set at the position corresponding to the common magnet 61' of the second base part 41 (that is, the photosensitive component drive coil is not blocked by the second base part at a top view angle through a hollow structure) to avoid reducing the electromagnetic force between the common magnet 61' and the photosensitive component drive coil 62b due to the obstruction of the second base part 41. In this embodiment, the notch 68 or the through hole 69 refers to a hollow structure formed by hollowing out a part of the block on the second base part. Further, FIG. 15e shows a three-dimensional schematic diagram of a second driving unit having a notch in the second base portion, and FIG. 15f shows a three-dimensional exploded schematic diagram of a second driving unit having a notch in the second base portion. Referring to FIG. 15e and FIG. 15f, it can be seen that the notch 68 refers to a hollow structure at least one side of which is not surrounded by a non-hollow block of the second base portion. For example, when the coil is arranged at a position close to the outer side surface of the second driving unit, the edge block of the second base portion corresponding to the coil can be hollowed out to form the notch. The photosensitive component drive coil can be any one or more of the first photosensitive component drive coil, the second photosensitive component drive coil and the third photosensitive component drive coil. FIG. 15g shows a three-dimensional schematic diagram of a second driving unit having a through hole in the second base portion, and FIG. 15h shows a three-dimensional exploded schematic diagram of a second driving unit having a through hole in the second base portion. Referring to FIG. 15g and FIG. 15h, it can be seen that the through hole 69 refers to a hollow structure that is still surrounded by non-hollow blocks of the second base portion 41 on all sides. In this embodiment, the base 41b of the second base part 41 is located between the motor base 31a and the second movable part 42, so the notch 68 or the through hole 69 is located at the base 41b of the second base part 41. It should be noted that the through hole 69 here refers to a through hole in the edge area for avoiding the magnetic field of the magnet, and is not a light hole located in the center.
上述实施例中，均采用了第一驱动部和第二驱动部共用磁石的设计思想，这一设计思想可以减小用于第一基础部或第二基础部用于安装磁石所占用的体积，帮助减小第一基础部底座(例如马达底座)或第二基础部的基底(第二基础部基底通常位于第一基础部与第二可动部之间)的厚度，从而帮助防抖摄像模组实现高度方向上的削减。In the above embodiments, the design concept of using a shared magnet for the first driving part and the second driving part is adopted. This design concept can reduce the volume occupied by the first base part or the second base part for installing the magnet, and help reduce the thickness of the base of the first base part (such as the motor base) or the base of the second base part (the base of the second base part is usually located between the first base part and the second movable part), thereby helping the anti-shake camera module to achieve a reduction in height.
上述实施例中，所述第一基础部的底面可以和所述第二基础部的顶面通过第一胶材粘结，以将第一驱动部和镜头组件组成的第一组合体，和第二驱动部和感光组件组成的第二组合体粘结，从而构成完整的摄像模组。俯视角度上，第一胶材可以布置于第一基础部或第二基础部的共用磁石外侧。这种设计可以避免第一基础部与第二基础部之间的粘接力受到负面影响。这是由于胶水选型往往是根据第一基础部和第二基础部的材料来选的，因此胶水与磁石之间的粘接力往往弱于胶水与第一基础部和第二基础部的粘结力。因此，本实施例中，胶水的布置位置避开第一基础部或第二基础部的共用磁石，可以有助于提升摄像模组的结构强度和可靠性。In the above embodiment, the bottom surface of the first base part can be bonded to the top surface of the second base part through the first glue material to bond the first assembly consisting of the first drive part and the lens assembly, and the second assembly consisting of the second drive part and the photosensitive assembly, thereby forming a complete camera module. From a top-down angle, the first glue material can be arranged on the outside of the common magnet of the first base part or the second base part. This design can avoid negative effects on the bonding force between the first base part and the second base part. This is because the selection of glue is often based on the materials of the first base part and the second base part, so the bonding force between the glue and the magnet is often weaker than the bonding force between the glue and the first base part and the second base part. Therefore, in this embodiment, the arrangement position of the glue avoids the common magnet of the first base part or the second base part, which can help improve the structural strength and reliability of the camera module.
进一步地，根据本申请的一个实施例，所述摄像模组中，所述感光组件可以包括线路板，安装于所述线路板表面的感光芯片，安装于所述线路板表面并围绕在所述感光芯片周围的镜座，安装于所述镜座的滤光片，以及安装于所述线路板表面且位于所述镜座外侧的电子元件。所述第二驱动部中，所述第二可动部可以具有向下延伸的刚性的延伸臂，所述延伸臂与所述感光组件的线路板粘接，所述延伸臂围绕在所述镜座的周围，且所述电子元件位于所述延伸臂的内侧面与所述镜座的外侧面之间的间隙；并且所述感光组件驱动线圈通过FPC与所述线路板电连接，所述FPC附接于所述延伸臂的侧面，并且所述FPC直接焊接于所述线路板。本实施例中，环绕在镜座周围的刚性的延伸臂可以对电子元件形成保护。其中电子元件例如可以是电阻、电容等，它们可以与线路板中的线路共同组成摄像模组所需的各个功能电路。Further, according to an embodiment of the present application, in the camera module, the photosensitive component may include a circuit board, a photosensitive chip mounted on the surface of the circuit board, a lens seat mounted on the surface of the circuit board and surrounding the photosensitive chip, a filter mounted on the lens seat, and an electronic component mounted on the surface of the circuit board and located outside the lens seat. In the second driving part, the second movable part may have a rigid extension arm extending downward, the extension arm is bonded to the circuit board of the photosensitive component, the extension arm surrounds the lens seat, and the electronic component is located in the gap between the inner side of the extension arm and the outer side of the lens seat; and the photosensitive component drive coil is electrically connected to the circuit board through an FPC, the FPC is attached to the side of the extension arm, and the FPC is directly welded to the circuit board. In this embodiment, the rigid extension arm surrounding the lens seat can protect the electronic components. The electronic components may be, for example, resistors, capacitors, etc., which can form various functional circuits required for the camera module together with the circuits in the circuit board.
进一步地，图16a示出了本申请一个实施例中的摄像模组的剖面示意图。参考图16a，本实施例中，后壳49的侧壁可以具有第一通孔49b，以便线路板23的软板(FPC)穿过，从而与终端设备的主板或其他部件实现电连接。后壳49的底板49c的中央可以具有第二通孔49d，以便于摄像模组的组装。组装摄像模组的过程可以包括：先将镜头10安装于第一驱动部30，然后将第二驱动部40贴附于第一驱动部30的底部，最后将感光组件20通过后壳49底部的第二通孔49d向上贴附于第二驱动部40的第二可动部42。Further, FIG. 16a shows a cross-sectional schematic diagram of a camera module in an embodiment of the present application. Referring to FIG. 16a, in this embodiment, the side wall of the rear shell 49 may have a first through hole 49b so that the soft board (FPC) of the circuit board 23 passes through, thereby achieving electrical connection with the mainboard or other components of the terminal device. The center of the bottom plate 49c of the rear shell 49 may have a second through hole 49d to facilitate the assembly of the camera module. The process of assembling the camera module may include: first installing the lens 10 on the first drive unit 30, then attaching the second drive unit 40 to the bottom of the first drive unit 30, and finally attaching the photosensitive component 20 upward to the second movable part 42 of the second drive unit 40 through the second through hole 49d at the bottom of the rear shell 49.
图16b示出了本申请一个实施例中的摄像模组的组装方式的示意图。本实施例中，可选地，可将感光组件20放置在调整设备29上，后壳49底部的第二通孔49d允许调整设备29将感光组件20通过主动校准工艺来确定其优选的位置和姿态，然后再与第二驱动部40的第二可动部42通过胶水28粘结。FIG16 b shows a schematic diagram of the assembly method of the camera module in one embodiment of the present application. In this embodiment, the photosensitive component 20 can be placed on the adjustment device 29, and the second through hole 49d at the bottom of the rear shell 49 allows the adjustment device 29 to determine the preferred position and posture of the photosensitive component 20 through an active calibration process, and then bonded to the second movable part 42 of the second driving part 40 through the glue 28.
图16c示出了本申请另一个实施例中的摄像模组的剖面示意图。参考图16c，本实施例中，后壳49底部为完整的底板49c，即底板49c上不设置第二通孔，在组装时，可以先将第二驱动部40与感光组件20贴附在一起形成第一组合体，第一驱动部30和镜头10组立在一起形成第二组合体，然后再通过主动校准工艺确定第一组合体和第二组合体的相对位置(主动校准包含位置和姿态的调整)，最后再根据主动校准所确定的相对位置将第一驱动部30和第二驱动部40粘贴，其中用于粘结第一组合体和第二组合体的胶水27可以布置在第一驱动部30的底面和第二驱动部40的顶面之间。FIG16c shows a cross-sectional schematic diagram of a camera module in another embodiment of the present application. Referring to FIG16c, in this embodiment, the bottom of the rear shell 49 is a complete bottom plate 49c, that is, the bottom plate 49c is not provided with a second through hole. During assembly, the second drive unit 40 and the photosensitive component 20 can be attached together to form a first assembly, and the first drive unit 30 and the lens 10 can be assembled together to form a second assembly. Then, the relative position of the first assembly and the second assembly is determined by an active calibration process (active calibration includes adjustment of position and posture), and finally, the first drive unit 30 and the second drive unit 40 are pasted according to the relative position determined by the active calibration, wherein the glue 27 for bonding the first assembly and the second assembly can be arranged between the bottom surface of the first drive unit 30 and the top surface of the second drive unit 40.
进一步地，图17示出了本申请一个实施例中的摄像模组及其连接带的布置方式。参考图17，本实施例中，摄像模组可以包括第一连接带26a和第二连接带26b，第一连接带26a设置于第一驱动部30的顶部区域，并电连接第一驱动部30，第二连接带26b与感光组件20的线路板23连通。其中第二连接带26b可以设置多个弯折，形成弯曲层叠状，以缓冲感光组件20移动所带来的应力。第二连接带26b的末端可以设置连接器，连接器可选地通过按压的方式固定并电连接于中转柱，再通过中转柱26c导通终端设备的主板(或其他构件)。同样地，第一连接带26a的末端也可以连接一连接器，该连接器通过可通过按压的方式固定并电连接于中转柱26c，再通过中转柱26c导通终端设备的主板(或其他构件)。本实施例的方案中，第一驱动部30的导通电路可以与感光组件20分开，不受感光组件20的移动所影响。第二连接带26b和中转柱26c可以容纳在第二壳体70中，第一连接带26a位于第二壳体70外部，第二壳体70的顶部可以具有第三通孔70a，以便第一连接带26a的连接器伸入并与第二连接带26b或者中转柱26c电导通。Further, FIG. 17 shows the arrangement of the camera module and its connecting belt in one embodiment of the present application. Referring to FIG. 17, in this embodiment, the camera module may include a first connecting belt 26a and a second connecting belt 26b, wherein the first connecting belt 26a is arranged at the top area of the first driving part 30 and is electrically connected to the first driving part 30, and the second connecting belt 26b is connected to the circuit board 23 of the photosensitive component 20. The second connecting belt 26b may be provided with a plurality of bends to form a curved stacked shape to buffer the stress caused by the movement of the photosensitive component 20. A connector may be provided at the end of the second connecting belt 26b, and the connector may be optionally fixed and electrically connected to the transfer column by pressing, and then connected to the mainboard (or other components) of the terminal device through the transfer column 26c. Similarly, a connector may also be connected to the end of the first connecting belt 26a, which may be fixed and electrically connected to the transfer column 26c by pressing, and then connected to the mainboard (or other components) of the terminal device through the transfer column 26c. In the solution of this embodiment, the conduction circuit of the first driving unit 30 can be separated from the photosensitive component 20 and is not affected by the movement of the photosensitive component 20. The second connecting belt 26b and the transfer column 26c can be accommodated in the second housing 70, the first connecting belt 26a is located outside the second housing 70, and the top of the second housing 70 can have a third through hole 70a so that the connector of the first connecting belt 26a can extend into and be electrically connected with the second connecting belt 26b or the transfer column 26c.
上述实施例中，所述的第一驱动部和第二驱动部可以构成用于光学致动器的驱动结构，该驱动结构中，第一驱动部适于安装镜头，第二驱动部适于安装感光组件，镜头与感光芯片被配置为同时驱动，且朝向相反的方向移动。例如镜头被驱动朝x轴正方向移动，则感光芯片被驱动朝x轴负方向移动；镜头被驱动朝向y轴正方向移动，则感光芯片被驱动朝y轴负方向移动；或者镜头被驱动在x轴及y轴移动，同时感光芯片被驱动在x轴及y轴朝向与镜头移动相反的方向移动，换句话说，当需要同时在x轴及y轴移动时，在xoy平面上镜头的位移矢量和感光芯片的位移矢量的方向是相反的。本实施例中，将镜头和感光芯片配置为同时移动，且镜头和感光芯片移动方向相反，可以实现更快速的响应，具有更好的防抖效果更好。另外，通常摄像模组的防抖角度范围受悬挂系统和驱动系统的限制，无法做到比较大的补偿角度范围，本实施例中，通过同时驱动镜头和感光芯片在相反的方向上移动，实现了大角度的抖动补偿。另外，本实施例中通过同时驱动镜头或及感光芯片朝相反的方向移动，相比仅驱动镜头移动的方案，镜头与感光芯片之间具有更大的相对移动的行程(为便于描述，可将这个相对移动的行程简称为防抖行程)，可以具有较好的补偿效果。尤其是，由于防抖行程的增加，本实施例对于摄像模组的倾斜抖动也具有较好的补偿效果。进一步地，本实施例的防抖移动的移动方向可以限定在xoy平面内，不需要使镜头的光轴或者感光芯片倾斜，从而避免了防抖移动所造成的像糊问题。In the above embodiment, the first driving unit and the second driving unit can constitute a driving structure for an optical actuator, in which the first driving unit is suitable for installing a lens, the second driving unit is suitable for installing a photosensitive component, and the lens and the photosensitive chip are configured to be driven simultaneously and move in opposite directions. For example, if the lens is driven to move in the positive direction of the x-axis, the photosensitive chip is driven to move in the negative direction of the x-axis; if the lens is driven to move in the positive direction of the y-axis, the photosensitive chip is driven to move in the negative direction of the y-axis; or the lens is driven to move in the x-axis and the y-axis, and the photosensitive chip is driven to move in the x-axis and the y-axis in the opposite direction to the movement of the lens. In other words, when it is necessary to move in the x-axis and the y-axis at the same time, the directions of the displacement vector of the lens and the displacement vector of the photosensitive chip on the xoy plane are opposite. In this embodiment, the lens and the photosensitive chip are configured to move simultaneously, and the movement directions of the lens and the photosensitive chip are opposite, which can achieve a faster response and better anti-shake effect. In addition, the anti-shake angle range of the camera module is usually limited by the suspension system and the drive system, and a relatively large compensation angle range cannot be achieved. In this embodiment, by simultaneously driving the lens and the photosensitive chip to move in opposite directions, large-angle shake compensation is achieved. In addition, in this embodiment, by simultaneously driving the lens or the photosensitive chip to move in opposite directions, compared with the solution of only driving the lens to move, the lens and the photosensitive chip have a larger relative movement stroke (for the convenience of description, this relative movement stroke can be referred to as the anti-shake stroke), which can have a better compensation effect. In particular, due to the increase in the anti-shake stroke, this embodiment also has a better compensation effect for the tilt shake of the camera module. Furthermore, the moving direction of the anti-shake movement of this embodiment can be limited to the xoy plane, and there is no need to tilt the optical axis of the lens or the photosensitive chip, thereby avoiding the image blur problem caused by the anti-shake movement.
进一步地，在摄像模组中，感光组件的线路板通常包括刚性的线路板主体和柔性连接带，所述柔性连接带的一端连接所述线路板主体，另一端通过连接器来连接并导通电子设备的主板或其他构件。现有技术中，感光组件的柔性连接带通常从线路板主体的侧面引出，柔性连接带与线路板柱体的表面大致是平行的。这种布置方式下，柔性连接带会对该线路板主体的移动产生较大的阻力，这可能会使驱动线路板主体运动所需的作用力变大，造成防抖补偿的行程不足，响应速度下降。并且，连接带造成的阻力是不规律的，这使得第二驱动部对于该阻力的补偿变得困难，可能造成防抖补偿的精度下降。因此，本实施例中提供了一种悬挂式的线路板以作为与所述第二驱动部适配的感光组件的线路板，这种设计方式将有助于克服连接带所带来的上述缺陷。Furthermore, in the camera module, the circuit board of the photosensitive component usually includes a rigid circuit board body and a flexible connecting belt, one end of the flexible connecting belt is connected to the circuit board body, and the other end is connected and connected to the main board or other components of the electronic device through a connector. In the prior art, the flexible connecting belt of the photosensitive component is usually led out from the side of the circuit board body, and the flexible connecting belt is roughly parallel to the surface of the circuit board column. Under this arrangement, the flexible connecting belt will produce a large resistance to the movement of the circuit board body, which may increase the force required to drive the circuit board body to move, resulting in insufficient travel of anti-shake compensation and a decrease in response speed. In addition, the resistance caused by the connecting belt is irregular, which makes it difficult for the second drive unit to compensate for the resistance, which may cause a decrease in the accuracy of anti-shake compensation. Therefore, in this embodiment, a suspended circuit board is provided as a circuit board of the photosensitive component adapted to the second drive unit. This design method will help to overcome the above-mentioned defects caused by the connecting belt.
图18示出了本申请一个实施例中的第二驱动部和感光组件组装后的立体示意图。图19示出了本申请一个实施例中的第二驱动部和感光组件的分解示意图。图20示出了本申请一个实施例中的感光组件及其所采用的悬挂式线路板的立体示意图。参考图18、图19和图20，实施例的摄像模组中，感光组件20与第二驱动部40的第二可动部42连接，因此线路板主体71可在第二可动部42的带动下在xoy平面内移动。本实施例的线路板23被设计成悬挂式结构。具体来说，所述线路板23包括刚性的线路板主体71和柔性的连接带72，所述连接带72可以包括第三连接带72a和第四连接带72b，第三连接带72a和第四连接带72b可以分别从线路板主体71的两个相对的侧面(为便于描述，这两个相对的侧面可称为第一侧面74a和第二侧面74b)引出并向上弯折。弯折后的所述第三连接带72a和所述第四连接带72b可以分别形成悬持部75。所述悬持部75可以与第二驱动部40(或者第一驱动部30)的基础部连接，从而形成悬持结构。该悬持结构可以让所述基础部通过所述柔性连接带72的弯折部73来悬持所述线路板主体71及其表面所述安装的各个部件(即悬持感光组件20)。具体来说，在一个例子中，所述悬持部75可以具有通孔(悬持孔75a)，所述第二驱动部40的第二基础部41可以具有对应的挂钩75b，所述挂钩75b勾住所述悬持部75的通孔以连接所述悬持部75。现有技术中，连接带与线路板主体通常在同一平面，此时连接带相对线路板主体在同一平面上的偏折会产生较大的阻力。而本实施例中，连接带72与线路板主体71的连接位置设置了向上弯折而形成的弯折部73，此时连接带72相对线路板主体71在xoy平面(可视为水平面)产生的阻力相对较小。FIG18 shows a perspective schematic diagram of the second drive unit and the photosensitive component after assembly in one embodiment of the present application. FIG19 shows a schematic diagram of the decomposition of the second drive unit and the photosensitive component in one embodiment of the present application. FIG20 shows a perspective schematic diagram of the photosensitive component in one embodiment of the present application and the suspended circuit board used therein. Referring to FIG18, FIG19 and FIG20, in the camera module of the embodiment, the photosensitive component 20 is connected to the second movable part 42 of the second drive unit 40, so that the circuit board body 71 can move in the xoy plane driven by the second movable part 42. The circuit board 23 of this embodiment is designed as a suspended structure. Specifically, the circuit board 23 includes a rigid circuit board body 71 and a flexible connecting belt 72, and the connecting belt 72 may include a third connecting belt 72a and a fourth connecting belt 72b, and the third connecting belt 72a and the fourth connecting belt 72b can be respectively drawn out from two opposite sides of the circuit board body 71 (for ease of description, the two opposite sides can be referred to as the first side 74a and the second side 74b) and bent upward. The third connecting belt 72a and the fourth connecting belt 72b after bending can form a suspension part 75 respectively. The suspension part 75 can be connected to the base part of the second driving part 40 (or the first driving part 30) to form a suspension structure. The suspension structure allows the base part to suspend the circuit board body 71 and the various components installed on its surface (i.e., suspend the photosensitive component 20) through the bending part 73 of the flexible connecting belt 72. Specifically, in one example, the suspension part 75 can have a through hole (suspension hole 75a), and the second base part 41 of the second driving part 40 can have a corresponding hook 75b, and the hook 75b hooks the through hole of the suspension part 75 to connect the suspension part 75. In the prior art, the connecting belt and the circuit board body are usually in the same plane. At this time, the deflection of the connecting belt relative to the circuit board body in the same plane will produce greater resistance. In this embodiment, a bending portion 73 is provided at the connection position between the connecting belt 72 and the circuit board body 71, and the resistance generated by the connecting belt 72 relative to the circuit board body 71 in the xoy plane (which can be regarded as a horizontal plane) is relatively small.
进一步地，在本申请的一个实施例中，所述第三连接带72a和所述第四连接带72b可以沿着所述线路板主体71和所述感光组件20的周沿延伸，从而使得连接带72在至少三个侧面围绕所述感光组件。并且，所述第三连接带72a和所述第四连接带72b互相连接并电导通。其中，所述感光组件20具有与所述线路板主体71位置一致的第一侧面74a和第二侧面74b。第一侧面74a和第二侧面74b相对布置(即二者互不相交)，而所述感光组件20的第三侧面74c与第一侧面74a和第二侧面74b均相交。所述连接带72可以环绕在所述感光组件20的第一侧面74a、第二侧面74b和第三侧面74c。所述第三连接带72a自所述线路板主体71的第一侧面74a引出并向上弯折形成所述弯折部73，然后沿着所述感光组件20的第一侧面74a延伸，并在拐角处在水平方向上弯折并继续沿着所述第三侧面74c延伸。所述第四连接带72b自所述线路板主体71的第二侧面74b引出并向上弯折形成另一弯折部73，然后沿着所述感光组件20的第二侧面74b延伸，并在拐角处水平弯折并继续沿着所述第三侧面74c延伸。第三连接带72a和第四连接带72b可在所述第三侧面74c接合并互相导通，从而构成一完整的连接带72。位于所述第一侧面74a、第二侧面74b和第三侧面74c的三个连接带区段可以分别具有至少一个悬持部75，每个所述悬持部75具有至少一个通孔以便与所述第二驱动部40(或所述第一驱动部30)的第二基础部41连接。本实施例中，所述悬持部75能够通过位于线路板主体71相对两侧的弯折部73悬持线路板主体71，从而使线路板主体71在被第二驱动部40驱动运动时，所述弯折部73及所述连接带72能够进行弯折形变，满足线路板主体71的运动行程。Further, in one embodiment of the present application, the third connecting belt 72a and the fourth connecting belt 72b can extend along the periphery of the circuit board body 71 and the photosensitive component 20, so that the connecting belt 72 surrounds the photosensitive component on at least three sides. In addition, the third connecting belt 72a and the fourth connecting belt 72b are connected to each other and electrically conductive. Among them, the photosensitive component 20 has a first side 74a and a second side 74b that are aligned with the position of the circuit board body 71. The first side 74a and the second side 74b are arranged opposite to each other (that is, the two do not intersect each other), and the third side 74c of the photosensitive component 20 intersects with both the first side 74a and the second side 74b. The connecting belt 72 can surround the first side 74a, the second side 74b and the third side 74c of the photosensitive component 20. The third connecting belt 72a is led out from the first side 74a of the circuit board body 71 and bent upward to form the bending portion 73, then extends along the first side 74a of the photosensitive component 20, and bends horizontally at the corner and continues to extend along the third side 74c. The fourth connecting belt 72b is led out from the second side 74b of the circuit board body 71 and bends upward to form another bending portion 73, then extends along the second side 74b of the photosensitive component 20, and bends horizontally at the corner and continues to extend along the third side 74c. The third connecting belt 72a and the fourth connecting belt 72b can be joined and connected to each other at the third side 74c, thereby forming a complete connecting belt 72. The three connecting belt sections located at the first side 74a, the second side 74b and the third side 74c can respectively have at least one suspension portion 75, and each of the suspension portions 75 has at least one through hole so as to be connected to the second base portion 41 of the second driving portion 40 (or the first driving portion 30). In this embodiment, the suspension portion 75 can suspend the circuit board body 71 through the bending portions 73 located on the opposite sides of the circuit board body 71, so that when the circuit board body 71 is driven to move by the second driving portion 40, the bending portions 73 and the connecting belt 72 can bend and deform to meet the movement range of the circuit board body 71.
进一步地，在本申请的一个实施例中，所述位于所述第一侧面74a、第二侧面74b和第三侧面74c的三个连接带区段的所述悬持部73可以均由刚性基板补强。例如可以在柔性连接带的部分区域贴附刚性基板，以形成所述悬持部73。而柔性连接带的其他区域则仍保持柔性状态，以便能够进行弯折形变，满足线路板主体71的运动行程。Furthermore, in one embodiment of the present application, the suspension portions 73 of the three connecting belt sections located at the first side 74a, the second side 74b and the third side 74c can all be reinforced by a rigid substrate. For example, a rigid substrate can be attached to a part of the flexible connecting belt to form the suspension portion 73. The other areas of the flexible connecting belt remain flexible so that they can be bent and deformed to meet the movement range of the circuit board body 71.
进一步地，在本申请的一个实施例中，位于所述第三侧面74c的连接带区段可以具有一刚性的悬持部75c，该悬持部75c可以引出一第五连接带76，该第五连接带76可用于连接电子设备(例如手机)的主板。Furthermore, in one embodiment of the present application, the connecting belt section located on the third side 74c may have a rigid suspension portion 75c, and the suspension portion 75c may lead out a fifth connecting belt 76, and the fifth connecting belt 76 may be used to connect the motherboard of an electronic device (such as a mobile phone).
进一步地，在本申请的另一个实施例中，所述悬持部也可以与外支架(图中未示出)连接，该外支架与所述第二驱动部的基础部直接或间接地固定在一起。本申请中，悬持部可以通过其他中介物与所述第二驱动部的基础部固定在一起。其中，中介物可以直接或间接地固定于所述第二驱动部的基础部。该中介物上具有挂钩以勾住所述悬持部，或者该中介物与所述悬持部粘合。中介物可以是外支架，也可以是第一驱动部的基础部，也可以是其他中介物。Furthermore, in another embodiment of the present application, the suspension portion may also be connected to an external bracket (not shown in the figure), and the external bracket is directly or indirectly fixed to the base portion of the second driving portion. In the present application, the suspension portion may be fixed to the base portion of the second driving portion through other intermediaries. Among them, the intermediary may be directly or indirectly fixed to the base portion of the second driving portion. The intermediary has a hook to hook the suspension portion, or the intermediary is bonded to the suspension portion. The intermediary may be an external bracket, or may be the base portion of the first driving portion, or may be other intermediaries.
进一步地，在本申请的另一个实施例中，所述悬持部可以不具有所述通孔。本实施例中，所述悬持部可以通过粘结的方式与所述第二驱动部的基础部(或者与第一驱动部的基础部或所述外支架)固定在一起。进一步地，在本申请的另一个实施例中，所述第三连接带和所述第四连接带可以是软硬结合板，其中形成所述悬持部的部分可以采用硬板，而连接所述悬持部的部分以及所述向上弯折而形成的弯折部均可以采用软板。由于悬持部直接由硬板形成，因此本实施例中悬持部可以不再贴附刚性基板进行补强。Further, in another embodiment of the present application, the suspension portion may not have the through hole. In this embodiment, the suspension portion may be fixed to the base portion of the second driving portion (or to the base portion of the first driving portion or the external bracket) by bonding. Further, in another embodiment of the present application, the third connecting belt and the fourth connecting belt may be a hard-soft combination board, wherein the portion forming the suspension portion may be a hard board, and the portion connecting the suspension portion and the bent portion formed by the upward bend may be a soft board. Since the suspension portion is directly formed by a hard board, the suspension portion in this embodiment may no longer be attached to a rigid substrate for reinforcement.
进一步地，本申请的一个实施例中，所述线路板主体、所述第三连接带和所述第四连接带可以由一块完整的软硬结合板构成。Furthermore, in one embodiment of the present application, the circuit board body, the third connecting strip and the fourth connecting strip may be formed by a complete rigid-flexible board.
进一步地，仍然参考图18、图19和图20，本申请的一个实施例中，所述线路板还可以具有一用于固定所述第五连接带76的固定部76a，这种设计可以避免所述线路板主体71、所述第三连接带72a和所述第四连接带72b受外部因素影响。Further, still referring to Figures 18, 19 and 20, in one embodiment of the present application, the circuit board may also have a fixing portion 76a for fixing the fifth connecting band 76. This design can prevent the circuit board body 71, the third connecting band 72a and the fourth connecting band 72b from being affected by external factors.
进一步地，图21a示出了本申请一个实施例中的悬挂式线路板展开后的正面示意图；图21b示出了本申请一个实施例中的悬挂式线路板展开后的背面示意图。参考图21a和图21b，本实施例中，所述线路板23可以由软硬结合板构成。其中所述第三连接带72a和所述第四连接带72b的位于所述第三侧面74c的区段可以通过连接器78、79实现相互扣合(可结合参考图20)，使所述第三连接带72a和所述第四连接带72b连接固定并进一步实现电连接。所述第三连接带72a和所述第四连接带72b内均设有电路，以将线路板主体71内的线路向外引出，进而通过第五连接带76及其连接器77连接外部电路。由于第三连接带72a和第四连接带72b可以各自通过对应的所述向上弯折而形成的弯折部73来引出一部分线路，因此每个弯折部73所需引出的线路可以减小，这样每个弯折部73的宽度可以缩小，从而进一步地减小柔性连接带72对线路板主体71移动所形成的阻力，进而降低第二驱动部40所需提供的驱动力。需注意，在本申请的其他实施例中，线路板主体的线路也可以仅通过其中一个弯折部(例如第三连接带的向上弯折的弯折部或者第四连接带的向上弯折的弯折部)引出。Further, FIG. 21a shows a front schematic diagram of a suspended circuit board in an embodiment of the present application after unfolding; FIG. 21b shows a back schematic diagram of a suspended circuit board in an embodiment of the present application after unfolding. Referring to FIG. 21a and FIG. 21b, in this embodiment, the circuit board 23 can be composed of a soft-hard combination board. The sections of the third connecting belt 72a and the fourth connecting belt 72b located on the third side 74c can be mutually buckled through connectors 78 and 79 (refer to FIG. 20), so that the third connecting belt 72a and the fourth connecting belt 72b are connected and fixed and further electrically connected. The third connecting belt 72a and the fourth connecting belt 72b are both provided with circuits to lead the circuits in the circuit board body 71 outward, and then connect the external circuit through the fifth connecting belt 76 and its connector 77. Since the third connecting strip 72a and the fourth connecting strip 72b can each lead out a part of the circuit through the corresponding bending portion 73 formed by the upward bending, the circuit required to be led out of each bending portion 73 can be reduced, so that the width of each bending portion 73 can be reduced, thereby further reducing the resistance formed by the flexible connecting strip 72 to the movement of the circuit board body 71, thereby reducing the driving force required to be provided by the second driving unit 40. It should be noted that in other embodiments of the present application, the circuit of the circuit board body can also be led out through only one of the bending portions (for example, the upward bending portion of the third connecting strip or the upward bending portion of the fourth connecting strip).
最后所应说明的是，以上实施例仅用以说明本发明的技术方案而非限制。尽管参照实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，对本发明的技术方案进行修改或者等同替换，都不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention and should be included in the scope of the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN202011338741.2ACN114554071B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| CN202011521767.0ACN114554074B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| CN202011520196.9ACN114554073B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| PCT/CN2021/129251WO2022111263A1 (en) | 2020-11-25 | 2021-11-08 | Driving structure for optical actuator and corresponding camera module |
| CN202180069889.7ACN116349237A (en) | 2020-11-25 | 2021-11-08 | Driving structure for optical actuator and corresponding camera module |
| US18/037,838US20240004265A1 (en) | 2020-11-25 | 2021-11-08 | Driving structure for optical actuator and corresponding camera module |
| EP21896764.4AEP4254929A4 (en) | 2020-11-25 | 2021-11-08 | Driving structure for optical actuator and corresponding camera module |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338741.2ACN114554071B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| Application Number | Title | Priority Date | Filing Date |
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| CN202011521767.0ADivisionCN114554074B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| CN202011520196.9ADivisionCN114554073B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| Publication Number | Publication Date |
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| CN114554071A CN114554071A (en) | 2022-05-27 |
| CN114554071Btrue CN114554071B (en) | 2024-10-22 |
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| CN202011520196.9AActiveCN114554073B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| CN202011338741.2AActiveCN114554071B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| CN202011521767.0AActiveCN114554074B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
| Application Number | Title | Priority Date | Filing Date |
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| CN202011520196.9AActiveCN114554073B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
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| CN202011521767.0AActiveCN114554074B (en) | 2020-11-25 | 2020-11-25 | Driving structure for optical actuator and corresponding camera module |
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| CN114554073B (en) | 2024-10-18 |
| CN114554073A (en) | 2022-05-27 |
| CN114554074B (en) | 2024-10-22 |
| CN114554071A (en) | 2022-05-27 |
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