技术领域technical field
本发明涉及摄像技术领域，尤其是涉及一种摄像头模组的防抖装置及摄像头模组。The invention relates to the field of camera technology, in particular to an anti-shake device for a camera module and the camera module.
背景技术Background technique
随着对生活品质的高要求，人们希望能利用摄像装置，如手机等随时拍摄出品质较好的照片。但是，在拍照时，如果摄像装置的摄像头发生抖动会导致拍摄出来的照片模糊，因此摄像装置需要提供一种防抖装置，从而保证拍摄图像的质量。Along with the high requirement to the quality of life, people wish to use the camera device, such as mobile phone etc. to take pictures with better quality at any time. However, when taking pictures, if the camera of the camera device shakes, the captured photos will be blurred. Therefore, the camera device needs to provide an anti-shake device to ensure the quality of the captured images.
发明内容Contents of the invention
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明需要提供一种摄像头模组的防抖装置。The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention needs to provide an anti-shake device for a camera module.
本发明还需要提供一种摄像头模组。The present invention also needs to provide a camera module.
本发明实施方式的一种摄像头模组的防抖装置，包括底板、载体及防抖部。所述载体设于所述底板上。所述防抖部包括第一连接件、第一驱动件、位于所述载体上的第一导引件及位于所述底板上的第二导引件，所述第一连接件连接所述第一导引件及所述第二导引件，所述第一驱动件用于驱动所述载体相对于所述底板沿垂直于所述底板的中心轴的平面移动，该平面由所述第一连接件、所述第一导引件及所述第二导引件共同限定。An anti-shake device for a camera module according to an embodiment of the present invention includes a bottom plate, a carrier, and an anti-shake part. The carrier is arranged on the bottom plate. The anti-shake part includes a first connecting part, a first driving part, a first guiding part on the carrier and a second guiding part on the bottom plate, the first connecting part connects the first a guide piece and the second guide piece, the first driving piece is used to drive the carrier to move relative to the bottom plate along a plane perpendicular to the central axis of the bottom plate, the plane is determined by the first The connecting piece, the first guiding piece and the second guiding piece are jointly defined.
本发明实施方式的摄像头模组的防抖装置，可驱动承载镜头模组的载体移动，因此，可补偿载体因抖动而发生的位移，从而保证其应用的摄像头模组的拍摄品质。The anti-shake device of the camera module in the embodiment of the present invention can drive the carrier carrying the lens module to move, therefore, it can compensate the displacement of the carrier due to shaking, thereby ensuring the shooting quality of the camera module applied thereto.
在一些实施方式中，所述第一导引件包括开设于所述载体的第一表面的多个第一圆形导轨。所述第二导引件包括开设于所述底板上且与所述多个第一圆形导轨对应设置的多个第二圆形导轨。所述第一连接件包括分别设于所述多个第一圆形导轨与所述多个第二圆形导轨之间的多个第一滑动滚珠。In some embodiments, the first guide includes a plurality of first circular guide rails opened on the first surface of the carrier. The second guide includes a plurality of second circular guide rails opened on the bottom plate and corresponding to the plurality of first circular guide rails. The first connecting member includes a plurality of first sliding balls respectively disposed between the plurality of first circular guide rails and the plurality of second circular guide rails.
在一些实施方式中，所述第一驱动件包括第一线圈、第二线圈、第一磁性体及第二磁性体。所述第一线圈设于所述底板上，所述第一磁性体设于所述第一表面上且与所述第一线圈相对设置，所述第一线圈通过通电产生磁场并与所述第一磁性体相作用从而驱动所述载体沿所述平面内的第一方向移动。所述第二线圈设于所述底板上，所述第二磁性体设于所述第一表面上且与所述第二线圈相对，所述第二线圈通过通电产生磁场并与所述第二磁性体相作用从而驱动所述载体沿所述平面内的第二方向移动。所述第一方向垂直于所述第二方向。In some embodiments, the first driver includes a first coil, a second coil, a first magnetic body, and a second magnetic body. The first coil is arranged on the bottom plate, the first magnetic body is arranged on the first surface and is opposite to the first coil, and the first coil generates a magnetic field through energization and is connected to the first coil. A magnetic body acts to drive the carrier along a first direction in the plane. The second coil is arranged on the bottom plate, the second magnetic body is arranged on the first surface and is opposite to the second coil, and the second coil generates a magnetic field through energization and is connected to the second coil. The magnetic body acts to drive the carrier to move in the second direction in the plane. The first direction is perpendicular to the second direction.
在一些实施方式中，所述防抖装置包括顶盖板，所述载体设于所述顶盖板与所述底板之间。所述顶盖板包括四个支撑脚，所述四个支撑脚与所述载体的侧壁配合连接。In some embodiments, the anti-shake device includes a top cover plate, and the carrier is disposed between the top cover plate and the bottom plate. The top cover plate includes four supporting feet, and the four supporting feet are mated and connected with the side walls of the carrier.
在一些实施方式中，所述防抖部包括第二连接件、位于所述载体的第二表面上的第三导引件及位于所述顶盖板上的第四导引件。所述第二连接件连接所述第三导引件及所述第四导引件，该平面还由所述第二连接件、所述第三导引件及所述第四导引件共同限定。所述第一表面与所述第二表面位于所述载体相背的两侧。In some embodiments, the anti-shake part includes a second connecting part, a third guiding part on the second surface of the carrier, and a fourth guiding part on the top cover. The second connecting piece connects the third guiding piece and the fourth guiding piece, and the plane is also shared by the second connecting piece, the third guiding piece and the fourth guiding piece. limited. The first surface and the second surface are located on opposite sides of the carrier.
在一些实施方式中，所述第三导引件包括开设于所述载体的第二表面的多个第三圆形导轨。所述第四导引件包括开设于所述顶盖板上且与所述多个第三圆形导轨对应设置的多个第四圆形导轨。所述第二连接件包括分别设于所述多个第三圆形导轨与所述多个第四圆形导轨之间的多个第二滑动滚珠。In some embodiments, the third guide includes a plurality of third circular guide rails opened on the second surface of the carrier. The fourth guide includes a plurality of fourth circular guide rails opened on the top cover plate and corresponding to the plurality of third circular guide rails. The second connecting member includes a plurality of second sliding balls respectively disposed between the plurality of third circular guide rails and the plurality of fourth circular guide rails.
在一些实施方式中，所述第一圆形导轨的直径等于所述第二圆形导轨的直径，所述第一滑动滚珠的直径小于所述第一圆形导轨的直径，所述第一滑动滚珠的直径大于两倍的所述第一圆形导轨的深度。In some embodiments, the diameter of the first circular guide rail is equal to the diameter of the second circular guide rail, the diameter of the first sliding ball is smaller than the diameter of the first circular guide rail, and the first sliding ball The diameter of the ball is greater than twice the depth of the first circular guide.
在一些实施方式中，所述第三圆形导轨的直径等于所述第四圆形导轨的直径，所述第二滑动滚珠的直径小于所述第三圆形导轨的直径，所述第二滑动滚珠的直径大于两倍的所述第三圆形导轨的深度。In some embodiments, the diameter of the third circular guide rail is equal to the diameter of the fourth circular guide rail, the diameter of the second sliding ball is smaller than the diameter of the third circular guide rail, and the second sliding ball The diameter of the ball is greater than twice the depth of the third circular guide.
在一些实施方式中，所述防抖装置包括第一检测元件、第二检测元件及控制器。所述第一检测元件用于检测所述第一线圈的第一磁变化量并反馈给所述控制器，所述控制器根据所述第一磁变化量控制所述第一线圈的电流以使所述载体沿所述第一方向移动。所述第二检测元件用于检测所述第二线圈的第二磁变化量并反馈给所述控制器，所述控制器根据所述第二磁变化量控制所述第二线圈的电流以使所述载体沿所述第二方向移动。In some embodiments, the anti-shake device includes a first detection element, a second detection element and a controller. The first detection element is used to detect the first magnetic variation of the first coil and feed it back to the controller, and the controller controls the current of the first coil according to the first magnetic variation so that The carrier moves along the first direction. The second detection element is used to detect the second magnetic variation of the second coil and feed it back to the controller, and the controller controls the current of the second coil according to the second magnetic variation so that The carrier moves in the second direction.
本发明实施方式中的摄像头模组，包括上述任一实施方式所述的防抖装置及镜头模组，所述镜头模组固定在所述载体上。The camera module in the embodiment of the present invention includes the anti-shake device and the lens module in any one of the above embodiments, and the lens module is fixed on the carrier.
在一些实施方式中，所述摄像头模组包括对焦部，所述对焦部包括所述载体、所述镜头模组及第二驱动件，所述镜头模组具有第一光轴，所述第二驱动件用于驱动所述载体沿所述第一光轴移动。In some implementations, the camera module includes a focusing unit, the focusing unit includes the carrier, the lens module and a second driving member, the lens module has a first optical axis, and the second The driving member is used to drive the carrier to move along the first optical axis.
在一些实施方式中，所述第二驱动件包括第三线圈及第三磁性体。所述载体开设有通孔，所述通孔内设有能够沿所述第一光轴移动的镜头组装筒，所述镜头模组固定于所述镜头组装筒内。所述第三线圈设于所述镜头组装筒的外壁上，所述第三线圈通过通电产生磁场并与所述第三磁性体相作用从而驱动所述镜头组装筒沿所述第一光轴移动。In some embodiments, the second driving member includes a third coil and a third magnetic body. The carrier is provided with a through hole, and a lens assembly barrel capable of moving along the first optical axis is arranged in the through hole, and the lens module is fixed in the lens assembly barrel. The third coil is arranged on the outer wall of the lens assembly barrel, and the third coil generates a magnetic field by being energized and interacts with the third magnetic body to drive the lens assembly barrel to move along the first optical axis .
在一些实施方式中，所述摄像头模组包括电路板、影像感测芯片及壳体。所述底板设置在所述电路板上。所述影像感测芯片设置在所述电路板上，所述影像感测芯片具有第二光轴。所述壳体设置在所述电路板上，所述壳体与所述底板连接并形成有腔室，所述腔室内收容有所述对焦部与所述防抖部。所述防抖部用于驱动所述载体相对于所述底板沿所述平面移动，从而保证所述第一光轴与所述第二光轴对准。In some embodiments, the camera module includes a circuit board, an image sensing chip and a casing. The base plate is arranged on the circuit board. The image sensing chip is disposed on the circuit board, and the image sensing chip has a second optical axis. The housing is arranged on the circuit board, the housing is connected with the bottom plate and forms a chamber, and the focusing part and the anti-shake part are accommodated in the chamber. The anti-shake part is used to drive the carrier to move along the plane relative to the bottom plate, so as to ensure that the first optical axis is aligned with the second optical axis.
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
附图说明Description of drawings
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:
图1是根据本发明实施方式的摄像头模组的爆炸示意图。FIG. 1 is an exploded schematic diagram of a camera module according to an embodiment of the present invention.
图2是根据本发明实施方式的摄像头模组的顶盖板的反面示意图。FIG. 2 is a schematic diagram of the reverse side of the top cover of the camera module according to the embodiment of the present invention.
图3是根据本发明实施方式的摄像头模组的载体的反面示意图。FIG. 3 is a schematic diagram of the reverse side of the carrier of the camera module according to the embodiment of the present invention.
具体实施方式detailed description
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "below" and "under" the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is less horizontal than the second feature.
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.
请参阅图1，本发明实施方式的摄像头模组10包括防抖装置(图未标)、对焦部(图未标)及镜头模组(图未示)。本发明实施方式的摄像头模组10可应用于摄像装置，其中，摄像装置可以为数字相机、数字摄像机、手机、平板电脑、监视器或其他具有摄像功能的电子装置。Please refer to FIG. 1 , the camera module 10 according to the embodiment of the present invention includes an anti-shake device (not shown), a focusing unit (not shown) and a lens module (not shown). The camera module 10 of the embodiment of the present invention can be applied to a camera device, wherein the camera device can be a digital camera, a digital video camera, a mobile phone, a tablet computer, a monitor or other electronic devices with a camera function.
防抖装置包括底板18、设于底板18上的载体20及防抖部。防抖部包括第一连接件10c、第一驱动件(图未标)、位于载体20上的第一导引件10a及位于底板18上的第二导引件10b。第一连接件10c连接第一导引件10a及第二导引件10b。第一驱动件用于驱动载体20相对于底板18沿垂直于底板18的中心轴的平面移动，该平面由第一连接件10c、第一引导件200a及第二引导件180共同限定。The anti-shake device includes a base plate 18 , a carrier 20 disposed on the base plate 18 , and an anti-shake portion. The anti-shake part includes a first connecting part 10c, a first driving part (not shown), a first guiding part 10a on the carrier 20 and a second guiding part 10b on the bottom plate 18 . The first connecting part 10c connects the first guiding part 10a and the second guiding part 10b. The first driving member is used to drive the carrier 20 to move relative to the base plate 18 along a plane perpendicular to the central axis of the base plate 18 , the plane is jointly defined by the first connecting member 10 c , the first guiding member 200 a and the second guiding member 180 .
如此，摄像头模组的防抖装置可驱动承载镜头模组的载体20移动，因此，可补偿载体20因抖动而发生的位移，从而保证其应用的摄像头模组10的拍摄品质。In this way, the anti-shake device of the camera module can drive the carrier 20 carrying the lens module to move, therefore, it can compensate the displacement of the carrier 20 due to shaking, so as to ensure the shooting quality of the camera module 10 applied thereto.
具体地，底板18大致方形，底板18位于载体20的下方，第二导引件10b设置在底板18与第一表面200相对的上表面上。底板18开设有贯穿底板18上下表面的第一通光孔182。Specifically, the bottom plate 18 is substantially square, the bottom plate 18 is located below the carrier 20 , and the second guide member 10 b is disposed on the upper surface of the bottom plate 18 opposite to the first surface 200 . The base plate 18 defines a first light hole 182 penetrating through the upper and lower surfaces of the base plate 18 .
在本实施方式中，第一导引件10a包括开设于载体20的第一表面200的多个第一圆形导轨200a。第二导引件10b包括开设于底板18上且与多个第一圆形导轨200a对应设置的多个第二圆形导轨180。第一连接件10c包括分别设于多个第一圆形导轨200a与多个第二圆形导轨180之间的多个第一滑动滚珠34。进一步地，第一圆形导轨200a与第二圆形导轨180为圆形凹槽。In this embodiment, the first guide member 10 a includes a plurality of first circular guide rails 200 a disposed on the first surface 200 of the carrier 20 . The second guide member 10b includes a plurality of second circular guide rails 180 disposed on the bottom plate 18 and corresponding to the plurality of first circular guide rails 200a. The first connecting member 10c includes a plurality of first sliding balls 34 respectively disposed between the plurality of first circular guide rails 200a and the plurality of second circular guide rails 180 . Further, the first circular guide rail 200a and the second circular guide rail 180 are circular grooves.
如此，第一圆形导轨200a、第二圆形导轨180及第一滑动滚珠34能实现导引载体20沿所述平面移动以补偿因抖动发生的位移，且结构简单，成本较低。In this way, the first circular guide rail 200a, the second circular guide rail 180 and the first sliding ball 34 can guide the carrier 20 to move along the plane to compensate for the displacement due to shaking, and the structure is simple and the cost is low.
具体地，第一圆形导轨200a、第二圆形导轨180及第一滑动滚珠34的数目均为四个。四个第一圆形导轨200a分别设置于载体20的第一表面200的四个角落。四个第二圆形导轨180分别设置于底板18的四个角落且与第一圆形导轨200a对应设置。底板18通过四个第一滑动滚珠34定位于载体20的下方。Specifically, the number of the first circular guide rail 200a, the second circular guide rail 180 and the first sliding balls 34 are all four. The four first circular guide rails 200 a are respectively disposed on four corners of the first surface 200 of the carrier 20 . The four second circular guide rails 180 are respectively disposed on four corners of the bottom plate 18 and correspond to the first circular guide rails 200a. The bottom plate 18 is positioned below the carrier 20 via four first sliding balls 34 .
在本实施方式中，第一驱动件包括第一线圈26、第二线圈28、第一磁性体30及第二磁性体32。第一线圈26设于底板18上，第一磁性体30设于第一表面200上且与第一线圈26相对设置，第一线圈26通过通电产生磁场并与第一磁性体30相作用从而驱动载体20沿平面内的第一方向移动。In this embodiment, the first driver includes a first coil 26 , a second coil 28 , a first magnetic body 30 and a second magnetic body 32 . The first coil 26 is arranged on the bottom plate 18, and the first magnetic body 30 is arranged on the first surface 200 and is arranged opposite to the first coil 26. The first coil 26 generates a magnetic field by energizing and interacts with the first magnetic body 30 to drive The carrier 20 moves along a first direction in the plane.
第二线圈28设于底板18上，第二磁性体32设于第一表面200上且与第二线圈28相对，第二线圈28通过通电产生磁场并与第二磁性体32相作用从而驱动载体20沿平面内的第二方向移动。第一方向垂直于第二方向。The second coil 28 is arranged on the bottom plate 18, and the second magnetic body 32 is arranged on the first surface 200 and is opposite to the second coil 28. The second coil 28 generates a magnetic field by energizing and interacts with the second magnetic body 32 to drive the carrier. 20 moves in a second in-plane direction. The first direction is perpendicular to the second direction.
如此，摄像头模组10的防抖装置通过第一线圈26、第二线圈28、第一磁性体30及第二磁性体32驱动载体20相对于底板18沿所述平面移动。In this way, the anti-shake device of the camera module 10 drives the carrier 20 to move along the plane relative to the bottom plate 18 through the first coil 26 , the second coil 28 , the first magnetic body 30 and the second magnetic body 32 .
具体地，第一线圈26与第一磁性体30的数目均为两个，两个第一线圈26分别设于底板18的上表面与第一方向平行的两条边上，两个第一磁性体30分别设于载体20的第一表面200与第一方向平行的两条边上，两个第一线圈26分别与两个第一磁性体30相对设置。进一步地，第一磁性体30可为磁铁等磁性体。Specifically, the number of the first coil 26 and the number of the first magnetic body 30 are two, and the two first coils 26 are respectively arranged on two sides of the upper surface of the bottom plate 18 parallel to the first direction, and the two first magnetic bodies The bodies 30 are respectively disposed on two sides of the first surface 200 of the carrier 20 parallel to the first direction, and the two first coils 26 are respectively disposed opposite to the two first magnetic bodies 30 . Further, the first magnetic body 30 may be a magnetic body such as a magnet.
第二线圈28与第二磁性体32的数目均为两个，两个第二线圈28分别设于底板18的上表面与第二方向平行的两条边上，两个第二磁性体32分别设于载体20的第一表面200与第二方向平行的两条边上，两个第二线圈28分别与两个第二磁性体32相对设置。进一步地，第二磁性体32可为磁铁等磁性体。The number of the second coil 28 and the number of the second magnetic body 32 are two, and the two second coils 28 are respectively arranged on the two sides parallel to the second direction on the upper surface of the bottom plate 18, and the two second magnetic bodies 32 are respectively Located on two sides of the first surface 200 of the carrier 20 parallel to the second direction, the two second coils 28 are respectively disposed opposite to the two second magnetic bodies 32 . Further, the second magnetic body 32 can be a magnetic body such as a magnet.
请结合图2及图3，在本实施方式中，防抖装置还包括顶盖板14，载体20设于顶盖板14与底板18之间。顶盖板14包括四个支撑脚148，四个支撑脚148与载体20的侧壁间隔预定距离。如此，4个支撑脚148共同限定了载体20的移动自由度，即载体20可在支撑脚148限定的空间内相对于底板18沿垂直于底板18的中心轴的平面移动。需要指出的是，顶盖板14是通过支撑脚148固定在固定板，该固定板可为电路板。Please refer to FIG. 2 and FIG. 3 , in this embodiment, the anti-shake device further includes a top cover 14 , and the carrier 20 is disposed between the top cover 14 and the bottom plate 18 . The top cover 14 includes four supporting feet 148 , and the four supporting feet 148 are separated from the sidewall of the carrier 20 by a predetermined distance. In this way, the four supporting feet 148 jointly define the freedom of movement of the carrier 20 , that is, the carrier 20 can move relative to the bottom plate 18 along a plane perpendicular to the central axis of the bottom plate 18 within the space defined by the supporting feet 148 . It should be pointed out that the top cover 14 is fixed on the fixing board through the supporting feet 148, and the fixing board can be a circuit board.
具体地，顶盖板14大致为正方形，顶盖板14包括顶面140、与顶面140相背的背面142，及贯穿顶面140与背面142的圆形第二通光孔144。四个支撑脚148自顶面140的四个角向下延伸，支撑脚148的横截面大致为L型。Specifically, the top cover 14 is approximately square, and the top cover 14 includes a top surface 140 , a back surface 142 opposite to the top surface 140 , and a circular second light hole 144 penetrating through the top surface 140 and the back surface 142 . Four supporting feet 148 extend downward from four corners of the top surface 140 , and the cross-section of the supporting feet 148 is substantially L-shaped.
在本实施方式中，防抖部还包括第二连接件10f、位于载体20的第二表面202上的第三导引件10d及位于顶盖板14上的第四导引件10e。第二连接件10f连接第三导引件10d及第四导引件10e，该平面还由第二连接件10f、第三导引件10d及第四导引件10e共同限定。第一表面200与第二表面202位于载体20相背的两侧。In this embodiment, the anti-shake portion further includes a second connecting piece 10 f , a third guiding piece 10 d on the second surface 202 of the carrier 20 , and a fourth guiding piece 10 e on the top cover 14 . The second connecting part 10f connects the third guiding part 10d and the fourth guiding part 10e, and the plane is also jointly defined by the second connecting part 10f, the third guiding part 10d and the fourth guiding part 10e. The first surface 200 and the second surface 202 are located on opposite sides of the carrier 20 .
如此，第二连接件10f、第三引导件10d及第四引导件10e与第一连接件10c、第一导引件10a及第二导引件10b共同限定载体20相对于底板18移动的平面，使得载体20能更平稳地移动。In this way, the second connecting piece 10f, the third guiding piece 10d and the fourth guiding piece 10e together with the first connecting piece 10c, the first guiding piece 10a and the second guiding piece 10b together define a plane on which the carrier 20 moves relative to the bottom plate 18 , so that the carrier 20 can move more smoothly.
在本实施方式中，第三导引件10d包括开设于载体20的第二表面202的多个第三圆形导轨202a。第四导引件10e包括开设于顶盖板14的顶面140上且与多个第三圆形导轨202a对应设置的多个第四圆形导轨146。第二连接件10f包括分别设于多个第三圆形导轨202a与多个第四圆形导轨146之间的多个第二滑动滚珠36。进一步地，第三圆形导轨202a与第四圆形导轨146为圆形凹槽。如此，结构简单，成本较低。In this embodiment, the third guide member 10 d includes a plurality of third circular guide rails 202 a disposed on the second surface 202 of the carrier 20 . The fourth guide member 10e includes a plurality of fourth circular guide rails 146 disposed on the top surface 140 of the top cover plate 14 and corresponding to the plurality of third circular guide rails 202a. The second connecting member 10f includes a plurality of second sliding balls 36 respectively disposed between the plurality of third circular guide rails 202a and the plurality of fourth circular guide rails 146 . Further, the third circular guide rail 202a and the fourth circular guide rail 146 are circular grooves. In this way, the structure is simple and the cost is low.
具体地，第三圆形导轨202a、第四圆形导轨146及第二滑动滚珠36的数目均为四个。四个第三圆形导轨202a分别设置于载体20的第二表面202的四个角落。四个第四圆形导轨146分别设置于顶盖板14的背面142的四个角落且与第三圆形导轨202a对应设置。顶盖板14通过四个第二滑动滚珠36定位于载体20的上方。Specifically, the number of the third circular guide rail 202 a , the fourth circular guide rail 146 and the second sliding balls 36 are all four. The four third circular guide rails 202 a are respectively disposed on four corners of the second surface 202 of the carrier 20 . The four fourth circular guide rails 146 are respectively disposed on four corners of the back surface 142 of the top cover 14 and correspond to the third circular guide rails 202a. The top cover plate 14 is positioned above the carrier 20 through four second sliding balls 36 .
在本实施方式中，第一圆形导轨200a的直径等于第二圆形导轨180的直径，第一滑动滚珠34的直径小于第一圆形导轨200a的直径。第一滑动滚珠34的直径大于两倍的第一圆形导轨200a的深度，即第一滑动滚珠34的直径大于第一圆形导轨200a与第二圆形导轨180之间的距离。In this embodiment, the diameter of the first circular guide rail 200 a is equal to the diameter of the second circular guide rail 180 , and the diameter of the first sliding ball 34 is smaller than the diameter of the first circular guide rail 200 a. The diameter of the first sliding ball 34 is greater than twice the depth of the first circular guide rail 200 a , that is, the diameter of the first sliding ball 34 is greater than the distance between the first circular guide rail 200 a and the second circular guide rail 180 .
如此，第一滑动滚珠34可在第一圆形导轨200a与第二圆形导轨180之间滑动，且第一滑动滚珠34可起到支撑载体20的作用。In this way, the first sliding ball 34 can slide between the first circular guide rail 200 a and the second circular guide rail 180 , and the first sliding ball 34 can play a role of supporting the carrier 20 .
在本实施方式中，第三圆形导轨202a的直径等于第四圆形导轨146的直径，第二滑动滚珠36的直径小于第三圆形导轨202a的直径。第二滑动滚珠36的直径大于两倍的第三圆形导轨202a的深度，即第二滑动滚珠36的直径大于第三圆形导轨202a与第四圆形导轨146之间的距离。In this embodiment, the diameter of the third circular guide rail 202a is equal to the diameter of the fourth circular guide rail 146, and the diameter of the second sliding ball 36 is smaller than the diameter of the third circular guide rail 202a. The diameter of the second sliding ball 36 is greater than twice the depth of the third circular guide rail 202 a , that is, the diameter of the second sliding ball 36 is greater than the distance between the third circular guide rail 202 a and the fourth circular guide rail 146 .
如此，第二滑动滚珠36可在第三圆形导轨202a与第四圆形导轨146之间滑动，且第二滑动滚珠36可起到支撑载体20的作用。In this way, the second sliding ball 36 can slide between the third circular guide rail 202 a and the fourth circular guide rail 146 , and the second sliding ball 36 can play a role of supporting the carrier 20 .
在本实施方式中，防抖装置包括第一检测元件38、第二检测元件40及控制器。第一检测元件38用于检测第一线圈26的第一磁变化量并反馈给控制器，控制器根据第一磁变化量控制第一线圈26的电流以使载体20沿第一方向移动。第二检测元件40用于检测第二线圈28的第二磁变化量并反馈给控制器，控制器根据第二磁变化量控制第二线圈28的电流以使载体20沿第二方向移动。In this embodiment, the anti-shake device includes a first detection element 38 , a second detection element 40 and a controller. The first detection element 38 is used to detect the first magnetic variation of the first coil 26 and feed it back to the controller. The controller controls the current of the first coil 26 according to the first magnetic variation to move the carrier 20 along the first direction. The second detection element 40 is used to detect the second magnetic variation of the second coil 28 and feed it back to the controller. The controller controls the current of the second coil 28 according to the second magnetic variation to move the carrier 20 in the second direction.
如此，第一检测元件38与第二检测元件40在摄像头模组10的抖动补偿中检测第一线圈26与第二线圈28的磁变化量并反馈给控制器，控制器根据磁变化量控制第一线圈26与第二线圈28的电流以最终达到预定补偿抖动量。In this way, the first detection element 38 and the second detection element 40 detect the magnetic variation of the first coil 26 and the second coil 28 in the shake compensation of the camera module 10 and feed it back to the controller, and the controller controls the magnetic variation according to the magnetic variation. The currents of the first coil 26 and the second coil 28 finally reach a predetermined amount of compensation jitter.
具体地，两个第一线圈26中的其中一个第一线圈26的旁边设置有第一检测元件38。两个第二线圈28中的其中一个第二线圈28的旁边设置有第二检测元件40。进一步地，第一检测元件38与第二检测元件40均为霍尔芯片。Specifically, a first detection element 38 is disposed beside one of the two first coils 26 . A second detection element 40 is arranged beside one of the second coils 28 of the two second coils 28 . Further, both the first detection element 38 and the second detection element 40 are Hall chips.
在本实施方式中，对焦部包括载体20、固定在载体20上的镜头模组及第二驱动件(图未标)，镜头模组具有第一光轴，第二驱动件用于驱动载体20沿第一光轴移动。如此，摄像头模组10通过第二驱动件驱动载体20沿第一光轴移动。可以理解，底板18的中心轴与镜头模组的第一光轴平行或重合。例如，当摄像头模组10组装完成后，底板18的中心轴与镜头模组的第一光轴重合，在摄像头模组拍摄过程中发生抖动时，镜头模组可能会偏离底板18，造成镜头模组的第一光轴与底板的中心轴不重合，而是平行。In this embodiment, the focusing unit includes a carrier 20, a lens module fixed on the carrier 20, and a second driving member (not shown in the figure), the lens module has a first optical axis, and the second driving member is used to drive the carrier 20 Move along the first optical axis. In this way, the camera module 10 drives the carrier 20 to move along the first optical axis through the second driving member. It can be understood that the central axis of the bottom plate 18 is parallel to or coincides with the first optical axis of the lens module. For example, when the camera module 10 is assembled, the central axis of the base plate 18 coincides with the first optical axis of the lens module. When the camera module shakes during shooting, the lens module may deviate from the base plate 18, causing the lens module The first optical axis of the group does not coincide with the central axis of the base plate, but is parallel.
在本实施方式中，第二驱动件包括第三线圈及第三磁性体24。载体20大致为中空长方体状，载体20开设有贯穿第一表面200与第二表面202的通孔204，通孔204内设有能够沿第一光轴移动的镜头组装筒，镜头模组固定于镜头组装筒内。第三线圈设于镜头组装筒的外壁上，第三磁性体24设于载体20的侧壁的内表面上，第三线圈通过通电产生磁场并与第三磁性体24相作用从而驱动镜头组装筒沿第一光轴移动。In this embodiment, the second driver includes a third coil and a third magnetic body 24 . The carrier 20 is roughly in the shape of a hollow cuboid. The carrier 20 is provided with a through hole 204 penetrating the first surface 200 and the second surface 202. The through hole 204 is provided with a lens assembly tube capable of moving along the first optical axis. The lens module is fixed on The lens is assembled in the barrel. The third coil is arranged on the outer wall of the lens assembly barrel, and the third magnetic body 24 is arranged on the inner surface of the side wall of the carrier 20, and the third coil generates a magnetic field through energization and interacts with the third magnetic body 24 to drive the lens assembly barrel Move along the first optical axis.
如此，摄像头模组10通过第三线圈及第三磁性体24驱动镜头组装筒沿第一光轴移动，从而带动镜头模组移动。In this way, the camera module 10 drives the lens assembly barrel to move along the first optical axis through the third coil and the third magnetic body 24 , thereby driving the lens module to move.
具体地，第三线圈由一根导线绕制而成，第三线圈缠绕于镜头组装筒的外壁上。镜头模组具有外螺纹，镜头组装筒具有内螺纹，镜头模组与镜头组装筒螺纹固定连接，如此，镜头组装筒上下运动时可带动镜头模组上下运动。Specifically, the third coil is wound by a wire, and the third coil is wound on the outer wall of the lens assembly cylinder. The lens module has an external thread, the lens assembly tube has an internal thread, and the lens module and the lens assembly tube are fixedly connected by threads, so that the lens assembly tube can drive the lens module to move up and down when it moves up and down.
第三磁性体24的数目为四个，第三磁性体24分别设于载体20的四个侧壁的内表面上，且第三磁性体24与第三线圈相对设置。例如，第三磁性体24为磁铁。The number of the third magnetic bodies 24 is four, the third magnetic bodies 24 are respectively disposed on the inner surfaces of the four side walls of the carrier 20 , and the third magnetic bodies 24 are disposed opposite to the third coil. For example, the third magnetic body 24 is a magnet.
在本实施方式中，摄像头模组10还包括电路板(图未标)、影像感测芯片(图未标)及壳体12。底板18设置在电路板上。影像感测芯片设置在电路板上，影像感测芯片具有第二光轴。壳体12设置在电路板上，壳体12与底板18连接并形成有腔室，腔室内收容有对焦部与防抖部。防抖部用于驱动载体20相对于底板18沿平面移动，从而保证第一光轴与第二光轴对准。In this embodiment, the camera module 10 further includes a circuit board (not shown), an image sensor chip (not shown) and a casing 12 . The bottom plate 18 is arranged on the circuit board. The image sensing chip is disposed on the circuit board, and the image sensing chip has a second optical axis. The casing 12 is arranged on the circuit board, and the casing 12 is connected with the bottom plate 18 to form a chamber, and the focusing part and the anti-shake part are accommodated in the cavity. The anti-shake part is used to drive the carrier 20 to move relative to the bottom plate 18 along the plane, so as to ensure that the first optical axis is aligned with the second optical axis.
如此，摄像头模组10可驱动承载镜头模组的载体20移动从而保证第一光轴与第二光轴对准，从而保证摄像头模组10的拍摄品质。In this way, the camera module 10 can drive the carrier 20 carrying the lens module to move so as to ensure that the first optical axis is aligned with the second optical axis, thereby ensuring the shooting quality of the camera module 10 .
在其他实施方式中，第三磁性体24设置于壳体12的侧壁的内表面上。In other embodiments, the third magnetic body 24 is disposed on the inner surface of the sidewall of the casing 12 .
本实施方式中，具体地，壳体12大致为中空长方体状，壳体12的一端为半封闭端，壳体12的另一端为开口端，半封闭端开设有圆形开口120，开口端为方形开口。In this embodiment, specifically, the housing 12 is roughly in the shape of a hollow cuboid, one end of the housing 12 is a semi-closed end, the other end of the housing 12 is an open end, the semi-closed end is provided with a circular opening 120, and the open end is Square opening.
对焦部还包括第一弹性件(图未示)及第二弹性件(图未示)。第一弹性件设于载体20的第一表面200上，第二弹性件设于载体20的第二表面202上，镜头组装筒的两端分别卡于第一弹性件与第二弹性件上进而使镜头组装筒及镜头模组能够在通孔204移动。The focusing part further includes a first elastic member (not shown in the figure) and a second elastic member (not shown in the figure). The first elastic member is arranged on the first surface 200 of the carrier 20, the second elastic member is arranged on the second surface 202 of the carrier 20, and the two ends of the lens assembly barrel are respectively clamped on the first elastic member and the second elastic member. The lens assembly barrel and the lens module can move in the through hole 204 .
第三线圈电性连接至第二弹性件上，第二弹性件通过两个弹簧端子引线电性连接至电路板，如此由电路板对第三线圈进行供电。第三线圈产生的磁场与第三磁性体24相作用以驱动镜头组装筒沿第一光轴上下运动，如此带动镜头模组沿第一光轴上下运动，从而实现对焦功能。当电路板停止对第三线圈供电时，第一弹性件与第二弹性件的弹性壁将镜头组装筒弹回至初始位置。进一步地，第一弹性件与第二弹性件为弹片。The third coil is electrically connected to the second elastic member, and the second elastic member is electrically connected to the circuit board through the two spring terminal leads, so that the circuit board supplies power to the third coil. The magnetic field generated by the third coil interacts with the third magnetic body 24 to drive the lens assembly cylinder to move up and down along the first optical axis, thus driving the lens module to move up and down along the first optical axis, thereby realizing the focusing function. When the circuit board stops supplying power to the third coil, the elastic walls of the first elastic member and the second elastic member bounce the lens assembly barrel back to the initial position. Further, the first elastic member and the second elastic member are elastic pieces.
具体地，为了方便说明，定义镜头模组的第一光轴方向为三维坐标系中的Z轴，垂直于第一光轴的第一方向为三维坐标系中的X轴，垂直于第一光轴与第一方向的第二方向三维坐标系中的Y轴。当镜头组装筒在X轴方向的移动量为A时，第一线圈26由电路板进行供电，第一检测元件38检测第一线圈26的磁变化量并反馈给控制器，控制器根据磁变化量控制第一线圈26的电流，同时第二线圈28不供电，第一线圈26产生的磁场与第一磁性体30相作用，如此使得第一滑动滚珠34带动载体20沿X轴方向运动以反向补偿抖动量-A，使得镜头模组的第一光轴对准影像感测芯片的第二光轴，进而实现抖动的补偿。Specifically, for the convenience of description, the first optical axis direction of the lens module is defined as the Z axis in the three-dimensional coordinate system, the first direction perpendicular to the first optical axis is the X axis in the three-dimensional coordinate system, and the first direction perpendicular to the first optical axis is the X axis in the three-dimensional coordinate system. The Y axis in the 3D coordinate system with the first direction and the second direction. When the movement amount of the lens assembly cylinder in the X-axis direction is A, the first coil 26 is powered by the circuit board, and the first detection element 38 detects the magnetic variation of the first coil 26 and feeds it back to the controller. Control the current of the first coil 26, while the second coil 28 does not supply power, the magnetic field generated by the first coil 26 interacts with the first magnetic body 30, so that the first sliding ball 34 drives the carrier 20 to move along the X-axis direction to reverse To compensate the shake amount-A, so that the first optical axis of the lens module is aligned with the second optical axis of the image sensor chip, thereby realizing shake compensation.
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. mean that the embodiments are combined A specific feature, structure, material, or characteristic described or exemplified is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560310.3ACN105137696A (en) | 2015-09-06 | 2015-09-06 | Anti-shake device for camera module and camera module |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560310.3ACN105137696A (en) | 2015-09-06 | 2015-09-06 | Anti-shake device for camera module and camera module |
| Publication Number | Publication Date |
|---|---|
| CN105137696Atrue CN105137696A (en) | 2015-12-09 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510560310.3APendingCN105137696A (en) | 2015-09-06 | 2015-09-06 | Anti-shake device for camera module and camera module |
| Country | Link |
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| CN (1) | CN105137696A (en) |
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| Date | Code | Title | Description |
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20151209 | |
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