CN105573014A - Camera module with focusing and anti-shaking functions - Google Patents

Abstract

The invention relates to a camera module with focusing and anti-shaking functions, which comprises a bracket shell, a first circuit board, an automatic focusing lens module and an anti-shaking mechanism, wherein when shooting is carried out under the condition of no shaking, the automatic focusing lens module automatically carries out automatic focusing on a shot object and carries out shooting after being electrified; when shooting is carried out under the condition of generating shake, the first guide piece is positioned on the first circuit board, the second guide piece is positioned at the bottom of the automatic focusing lens module, and the first connecting piece is connected with the first guide piece and the second guide piece, so that the first driving piece can drive the whole automatic focusing lens module to move relative to the first circuit board along a plane vertical to the optical axis of the automatic focusing lens module, shake compensation is generated, and the shooting quality is ensured. The camera module with focusing and anti-shaking functions does not adopt a suspension line structure when realizing the focusing and anti-shaking functions, so that special materials are not needed, the structure is simple, and the cost is saved.

Description

Translated fromChinese

具有对焦及防抖功能的摄像头模组Camera module with focus and anti-shake functions

技术领域technical field

本发明涉及摄像头模组技术领域，特别是涉及一种具有对焦及防抖功能的摄像头模组。The invention relates to the technical field of camera modules, in particular to a camera module with focusing and anti-shake functions.

背景技术Background technique

随着技术的发展与进步，具有对焦及防抖功能的微型摄像头模组被广泛应用于手机、PAD等电子产品上，使其具有拍照和摄像功能。传统具有对焦及防抖功能的摄像头模组通常采用悬吊线结构，采用此种结构时，其防抖装置通常位于对焦装置下方，并且通过具有弹性的四根悬吊线连接。With the development and progress of technology, miniature camera modules with focusing and anti-shake functions are widely used in electronic products such as mobile phones and PADs, so that they have the functions of taking pictures and taking pictures. Traditional camera modules with focusing and anti-shake functions usually adopt a suspension wire structure. When this structure is adopted, the anti-shake device is usually located under the focusing device and connected by four elastic suspension wires.

在没有抖动的拍摄情况下，对焦装置驱动镜头模组沿其光轴方向运动以拍摄清晰图像。在发生抖动的情况下，镜头可能沿X轴方向或Y轴方向微小移动，抖动补偿时防抖装置驱动对焦装置沿X轴方向或Y轴方向运动以补偿抖动量。而抖动量是通过安装在电子产品或摄像头模组上的陀螺仪来侦测。另外，防抖装置还设置有霍尔感应器，用于在抖动补偿过程中检测磁变化量并反馈给控制器，控制器根据磁变化量控制防抖线圈的电流以最终达到预定补偿移动量。In the case of shooting without shaking, the focusing device drives the lens module to move along its optical axis to capture clear images. In the case of shaking, the lens may move slightly along the X-axis or the Y-axis. During shake compensation, the anti-shake device drives the focus device to move along the X-axis or the Y-axis to compensate for the shake. The amount of shaking is detected by a gyroscope installed on an electronic product or a camera module. In addition, the anti-shake device is also equipped with a Hall sensor, which is used to detect the magnetic change during the shake compensation process and feed it back to the controller. The controller controls the current of the anti-shake coil according to the magnetic change to finally achieve the predetermined compensation movement.

然而上述具有对焦及防抖功能的摄像头模组不仅结构复杂，而且悬吊线一般采用特制材料，成本高。However, the above-mentioned camera module with focusing and anti-shake functions is not only complicated in structure, but also the suspension wire generally uses special materials, and the cost is high.

发明内容Contents of the invention

基于此，有必要针对上述技术问题，提供一种不采用悬吊线结构也能实现对焦及防抖功能的具有对焦及防抖功能的摄像头模组。Based on this, it is necessary to address the above technical problems and provide a camera module with focusing and anti-shaking functions that can achieve focusing and anti-shaking functions without using a suspension wire structure.

一种具有对焦及防抖功能的摄像头模组，包括：A camera module with focus and anti-shake functions, comprising:

支架外壳，具有一开口端，与所述开口端相对的一端开设有通光孔；The bracket shell has an open end, and an end opposite to the open end is provided with a light hole;

第一电路板，设置于所述开口端，所述支架外壳与所述第一电路板共同围成一收容空间；The first circuit board is arranged at the opening end, and the bracket shell and the first circuit board together form a receiving space;

自动对焦镜头模组，收容于所述收容空间内，所述自动对焦镜头模组与所述第一电路板电连接；及An auto-focus lens module is accommodated in the receiving space, and the auto-focus lens module is electrically connected to the first circuit board; and

防抖机构，包括第一连接件、第一驱动件、第一导引件及第二导引件，所述第一导引件位于所述第一电路板上，所述第二导引件位于所述自动对焦镜头模组的底部，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自动对焦镜头模组相对于所述第一电路板沿垂直于所述自动对焦镜头模组的光轴的平面移动。The anti-shake mechanism includes a first connecting part, a first driving part, a first guiding part and a second guiding part, the first guiding part is located on the first circuit board, and the second guiding part Located at the bottom of the autofocus lens module, the first connecting part connects the first guide and the second guide, and the first driving part is used to drive the autofocus lens module Relative to the first circuit board, it moves along a plane perpendicular to the optical axis of the auto-focus lens module.

在其中一个实施例中，所述第一导引件包括开设于所述第一电路板上的至少三个不在同一直线上的第一圆形导轨，所述第二导引件包括开设于所述自动对焦镜头模组的底部的至少三个不在同一直线上的第二圆形导轨，所述第一连接件包括设置于所述第一圆形导轨与所述第二圆形导轨之间的第一滚珠。In one of the embodiments, the first guide includes at least three first circular guide rails that are not on the same straight line opened on the first circuit board, and the second guide includes at least three first circular guide rails that are opened on the first circuit board. There are at least three second circular guide rails that are not on the same straight line at the bottom of the autofocus lens module, and the first connector includes a circular guide rail arranged between the first circular guide rail and the second circular guide rail. First ball.

在其中一个实施例中，所述第一圆形导轨的直径等于所述第二圆形导轨的直径，所述第一滚珠的直径小于所述第一圆形导轨的直径，所述第一滚珠的直径大于两倍的所述第一圆形导轨的深度。In one of the embodiments, the diameter of the first circular guide is equal to the diameter of the second circular guide, the diameter of the first ball is smaller than the diameter of the first circular guide, and the first ball The diameter is greater than twice the depth of the first circular guide.

在其中一个实施例中，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；In one of the embodiments, the first driving member includes a first coil, a second coil, a first magnetic body, and a second magnetic body;

所述第一线圈设于所述自动对焦镜头模组的底部，所述第一磁性体设于所述第一电路板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自动对焦镜头模组沿所述平面内的第一方向移动；The first coil is arranged at the bottom of the auto-focus lens module, the first magnetic body is arranged on the first circuit board and is opposite to the first coil, and the first coil is energized to generate A magnetic field interacts with the first magnetic body to drive the autofocus lens module to move along the first direction in the plane;

所述第二线圈设于所述自动对焦镜头模组的底部，所述第二磁性体设于所述第一线路板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自动对焦镜头模组沿所述平面内的第二方向移动；其中，所述第一方向垂直于所述第二方向。The second coil is arranged on the bottom of the autofocus lens module, the second magnetic body is arranged on the first circuit board and is opposite to the second coil, and the second coil generates a magnetic field by electrifying And interact with the second magnetic body to drive the auto-focus lens module to move along the second direction in the plane; wherein, the first direction is perpendicular to the second direction.

在其中一个实施例中，所述防抖机构还包括第二连接件、第三导引件及第四导引件，所述第三导引件设置于所述支架外壳上开设有通光孔的顶壁的内表面，所述第四导引件设置于所述自动对焦镜头模组的顶部，所述第二连接件连接所述第三导引件与所述第四导引件。In one of the embodiments, the anti-shake mechanism further includes a second connecting piece, a third guiding piece, and a fourth guiding piece, the third guiding piece is arranged on the bracket shell and has a light through hole The inner surface of the top wall, the fourth guide is disposed on the top of the autofocus lens module, and the second connecting member connects the third guide and the fourth guide.

在其中一个实施例中，所述第三导引件包括开设于所述支架外壳上开设有通光孔的顶壁的内表面的至少三个不在同一直线上的第三圆形导轨；In one of the embodiments, the third guide includes at least three third circular guide rails that are not on the same straight line and are opened on the inner surface of the top wall of the bracket shell where the light through hole is opened;

所述第四导引件包括开设于所述自动对焦镜头模组的顶部且与所述第三圆形导轨对应设置的至少三个不在同一直线上的第四圆形导轨；The fourth guide includes at least three fourth circular guide rails that are not on the same straight line and are set on the top of the autofocus lens module and corresponding to the third circular guide rails;

所述第二连接件包括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滚珠。The second connecting member includes a plurality of second balls disposed between the plurality of third circular guide rails and the plurality of fourth circular guide rails.

在其中一个实施例中，所述第三圆形导轨的直径等于所述第四圆形导轨的直径，所述第二滚珠的直径小于所述第三圆形导轨的直径，所述第二滚珠的直径大于两倍的所述第三圆形导轨的深度。In one of the embodiments, the diameter of the third circular guide is equal to the diameter of the fourth circular guide, the diameter of the second ball is smaller than the diameter of the third circular guide, and the second ball The diameter is greater than twice the depth of the third circular guide.

在其中一个实施例中，所述防抖机构还包括第一检测元件、第二检测元件及控制器；In one of the embodiments, the anti-shake mechanism further includes a first detection element, a second detection element and a controller;

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；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;

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。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.

在其中一个实施例中，所述自动对焦镜头模组包括第二电路板、底座、影像感测器、滤光片、镜头模组、载体、对焦线圈、对焦磁体、上弹片、下弹片及音圈马达，所述第二电路板与所述第一电路板电连接，所述第二导引件位于所述第二电路板的底部，所述底座的底部设置于所述第二电路板上，所述影像感测器设置于所述第二电路板上，且位于所述底座的内部，所述滤光片设置于所述底座上且位于所述影像感测器上方，所述载体为中空筒状结构，所述镜头模组设置于所述载体内，所述对焦线圈缠绕于所述载体的外周缘，所述对焦线圈与所述第二电路板电连接，所述对焦磁体收容于所述音圈马达内且与所述对焦线圈相对设置，所述载体的一端卡设于所述上弹片上，所述载体的另一端卡设于所述下弹片上，所述镜头模组、载体、对焦线圈、上弹片及下弹片收容于所述音圈马达内。In one of the embodiments, the auto-focus lens module includes a second circuit board, a base, an image sensor, a filter, a lens module, a carrier, a focusing coil, a focusing magnet, an upper elastic piece, a lower elastic piece, and an audio sensor. A circle motor, the second circuit board is electrically connected to the first circuit board, the second guide is located at the bottom of the second circuit board, and the bottom of the base is set on the second circuit board , the image sensor is disposed on the second circuit board and located inside the base, the filter is disposed on the base and above the image sensor, and the carrier is Hollow cylindrical structure, the lens module is arranged in the carrier, the focusing coil is wound around the outer periphery of the carrier, the focusing coil is electrically connected to the second circuit board, and the focusing magnet is accommodated in The voice coil motor is arranged opposite to the focus coil, one end of the carrier is clamped on the upper elastic piece, the other end of the carrier is clamped on the lower elastic piece, the lens module, The carrier, the focus coil, the upper elastic piece and the lower elastic piece are accommodated in the voice coil motor.

在其中一个实施例中，所述第二电路板为软硬结合板，包括PCB基板及FPC线路板，所述PCB基板设置于所述底座的底部，所述FPC线路板与所述第一电路板电连接。In one of the embodiments, the second circuit board is a rigid-flex board, including a PCB substrate and an FPC circuit board, the PCB substrate is arranged at the bottom of the base, and the FPC circuit board and the first circuit board board electrical connection.

上述具有对焦及防抖功能的摄像头模组至少具有以下功能：The above-mentioned camera module with focus and anti-shake functions has at least the following functions:

启动防抖功能，当在没有抖动的情况下拍摄时，自动对焦镜头模组通电后自动对拍摄物体进行自动对焦并进行拍摄；当在产生抖动的情况下进行拍摄时，由于第一导引件位于第一电路板上，第二导引件位于自动对焦镜头模组的底部，第一连接件连接第一导引件与第二导引件，所以第一驱动件能够驱动整个自动对焦镜头模组相对于第一电路板沿垂直于自动对焦镜头模组的光轴的平面产生移动，产生抖动补偿，以保证拍摄质量。上述具有对焦及防抖功能的摄像头模组在实现对焦及防抖功能时并未采用悬吊线结构，因此无需采用特制材料，结构简单，节约了成本。而且产生抖动补偿时，整个自动对焦镜头模组都相对于垂直于光轴的平面移动，保证了影像感测器与镜头模组始终在同一光轴上，避免了四周解像力下降的问题。Start the anti-shake function. When shooting without shaking, the auto-focus lens module will automatically focus on the subject and shoot after power-on; when shooting with shaking, the first guide will Located on the first circuit board, the second guide is located at the bottom of the auto-focus lens module, and the first connecting piece connects the first guide and the second guide, so the first driver can drive the entire auto-focus lens module The group moves relative to the first circuit board along a plane perpendicular to the optical axis of the autofocus lens module to generate shake compensation to ensure shooting quality. The above-mentioned camera module with focus and anti-shake functions does not use a suspension wire structure when realizing the focus and anti-shake functions, so no special materials are needed, the structure is simple, and the cost is saved. Moreover, when shake compensation occurs, the entire autofocus lens module moves relative to a plane perpendicular to the optical axis, ensuring that the image sensor and lens module are always on the same optical axis, avoiding the problem of reduced resolution around the lens.

附图说明Description of drawings

图1为一实施方式中具有对焦及防抖功能的摄像头模组的剖视图；Fig. 1 is a sectional view of a camera module with focus and anti-shake functions in an embodiment;

图2为图1中支架外壳的结构示意图；Fig. 2 is a schematic structural view of the bracket shell in Fig. 1;

图3为图1中自动对焦镜头模组的局部分解示意图；Fig. 3 is a partially exploded schematic diagram of the autofocus lens module in Fig. 1;

图4为图1中第一线路板的结构示意图；Fig. 4 is a schematic structural view of the first circuit board in Fig. 1;

图5为图1中第二线路板的结构示意图。FIG. 5 is a schematic structural diagram of the second circuit board in FIG. 1 .

具体实施方式detailed description

为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施的限制。In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. The various technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

请参阅图1，为一实施方式中的具有对焦及防抖功能的摄像头模组10，可以将其应用于例如手机、PAD等电子产品中，使电子产品具有拍照和摄像功能。具体到本实施方式中，具有对焦及防抖功能的摄像头模组10包括支架外壳100、第一电路板200、自动对焦镜头模组300及防抖机构400。Please refer to FIG. 1 , which is a camera module 10 with focus and anti-shake functions in an embodiment, which can be applied to electronic products such as mobile phones and PADs, so that the electronic products have camera and video functions. Specifically in this embodiment, the camera module 10 with focusing and anti-shake functions includes a bracket housing 100 , a first circuit board 200 , an auto-focus lens module 300 and an anti-shake mechanism 400 .

具体地，为了方便说明，定义自动对焦镜头模组300的光轴方向为三维坐标系中的Z轴，垂直于光轴的第一方向为三维坐标系中的X轴，垂直于光轴与第一方向的第二方向三维坐标系中的Y轴。Specifically, for convenience of description, the direction of the optical axis of the autofocus lens module 300 is defined as the Z axis in the three-dimensional coordinate system, the first direction perpendicular to the optical axis is the X axis in the three-dimensional coordinate system, and the first direction perpendicular to the optical axis is the X axis in the three-dimensional coordinate system. The Y axis in the three-dimensional coordinate system of the second direction of the first direction.

请一并参阅图2，支架外壳100具有一开口端100a，与开口端100a相对的一端开设有通光孔100b。外界的光线通过通光孔100b进入支架外壳100内。具体地，支架外壳100为中空的长方体状，开口端100a为方形开口，通光孔100b为圆形。Please also refer to FIG. 2 , the bracket housing 100 has an open end 100a, and an end opposite to the open end 100a defines a light hole 100b. External light enters the bracket shell 100 through the light hole 100b. Specifically, the bracket housing 100 is a hollow cuboid, the opening end 100a is a square opening, and the light hole 100b is a circle.

第一电路板200设置于开口端100a，支架外壳100与第一电路板200共同围成一收容空间200a。具体地，第一电路板200可以为PCB电路板，能够与外界元件电性连接。The first circuit board 200 is disposed at the open end 100a, and the bracket housing 100 and the first circuit board 200 jointly define a receiving space 200a. Specifically, the first circuit board 200 may be a PCB circuit board, capable of being electrically connected with external components.

请一并参阅图3，自动对焦镜头模组300收容于收容空间200a内，自动对焦镜头模组300与第一电路板200电连接。具体到本实施方式中，自动对焦镜头模组300包括第二电路板310、底座320、影像感测器330、滤光片340、镜头模组350、载体360、对焦线圈370、对焦磁体381、上弹片382、下弹片383及音圈马达390。Please also refer to FIG. 3 , the auto-focus lens module 300 is accommodated in the receiving space 200 a, and the auto-focus lens module 300 is electrically connected to the first circuit board 200 . Specifically in this embodiment, the auto-focus lens module 300 includes a second circuit board 310, a base 320, an image sensor 330, a filter 340, a lens module 350, a carrier 360, a focus coil 370, a focus magnet 381, The upper shrapnel 382 , the lower shrapnel 383 and the voice coil motor 390 .

请再次参阅图1，第二电路板310与第一电路板200电连接。具体到本实施方式中，第二电路板310为软硬结合板，包括PCB基板311及FPC线路板312，PCB基板311设置于底座320的底部，通过FPC线路板312与第一电路板200电连接。当然，在其它的实施方式中，第二电路板310也可以为硬质电路板，然后通过导线与第一电路板200电连接。Please refer to FIG. 1 again, the second circuit board 310 is electrically connected to the first circuit board 200 . Specifically in this embodiment, the second circuit board 310 is a rigid-flex board, including a PCB substrate 311 and an FPC circuit board 312. The PCB substrate 311 is arranged on the bottom of the base 320, and the first circuit board 200 is electrically connected to the FPC circuit board 312. connect. Certainly, in other implementation manners, the second circuit board 310 may also be a rigid circuit board, and then electrically connected to the first circuit board 200 through wires.

底座320的底部设置于第二电路板310上，影像感测器330设置于第二电路板310上，且位于底座320的内部，影像感测器330与第二电路板310电连接。滤光片340设置于底座320上且位于影像感测器330上方，载体360为中空筒状结构，镜头模组350设置于载体360内，具体地，镜头模组350可以通过螺纹方式设置于载体360内，外界的光线通过镜头模组350再经过滤光片340后到达影像感测器330。The bottom of the base 320 is disposed on the second circuit board 310 . The image sensor 330 is disposed on the second circuit board 310 and inside the base 320 . The image sensor 330 is electrically connected to the second circuit board 310 . The optical filter 340 is arranged on the base 320 and above the image sensor 330, the carrier 360 is a hollow cylindrical structure, and the lens module 350 is arranged in the carrier 360, specifically, the lens module 350 can be arranged on the carrier by screwing In 360 , external light passes through the lens module 350 and then passes through the filter 340 to reach the image sensor 330 .

对焦线圈370缠绕于载体360的外周缘，对焦线圈370与第二电路板310电连接。具体地，对焦线圈370为一根导线缠绕形成。对焦磁体381收容于音圈马达390内且与对焦线圈370相对设置，对焦磁体381的数量为四个，四个对焦磁体381分别位于载体360的四个角落。载体360的一端卡设于上弹片382上，载体360的另一端卡设于下弹片383上，镜头模组350、载体360、对焦线圈370、上弹片382及下弹片383收容于音圈马达390内。The focus coil 370 is wound around the outer periphery of the carrier 360 , and the focus coil 370 is electrically connected to the second circuit board 310 . Specifically, the focusing coil 370 is formed by winding a wire. The focusing magnet 381 is accommodated in the voice coil motor 390 and is disposed opposite to the focusing coil 370 . There are four focusing magnets 381 , and the four focusing magnets 381 are respectively located at four corners of the carrier 360 . One end of the carrier 360 is clamped on the upper elastic piece 382, the other end of the carrier 360 is clamped on the lower elastic piece 383, the lens module 350, the carrier 360, the focusing coil 370, the upper elastic piece 382 and the lower elastic piece 383 are housed in the voice coil motor 390 Inside.

对焦时，对焦线圈370由第二电路板310供电，对焦线圈370产生的磁场与音圈马达390内的对焦磁体381相作用，驱动载体360上下移动，进而带动镜头模组350沿其光轴方向往复移动，实现对焦功能。当停止给对焦线圈370供电时，上弹片382与下弹片383将载体360弹回至初始位置。When focusing, the focus coil 370 is powered by the second circuit board 310, and the magnetic field generated by the focus coil 370 interacts with the focus magnet 381 in the voice coil motor 390 to drive the carrier 360 to move up and down, thereby driving the lens module 350 along its optical axis. Move back and forth to realize the focus function. When the power supply to the focusing coil 370 is stopped, the upper elastic piece 382 and the lower elastic piece 383 bounce the carrier 360 back to the initial position.

防抖机构400包括第一连接件、第一驱动件、第一导引件及第二导引件。第一导引件位于第一电路板200上，第二导引件位于自动对焦镜头模组300的底部，第一连接件连接第一导引件及第二导引件，第一驱动件用于驱动自动对焦镜头模组300相对于第一电路板200沿垂直于自动对焦镜头模组300的光轴的平面移动。因此，防抖机构400能够驱动自动对焦镜头模组300移动，因此可补偿自动对焦镜头模组300因抖动而产生的位移，从而保证拍摄质量。The anti-shake mechanism 400 includes a first connecting part, a first driving part, a first guiding part and a second guiding part. The first guide is located on the first circuit board 200, the second guide is located at the bottom of the autofocus lens module 300, the first connector connects the first guide and the second guide, and the first driver is used The auto-focus lens module 300 is driven to move relative to the first circuit board 200 along a plane perpendicular to the optical axis of the auto-focus lens module 300 . Therefore, the anti-shake mechanism 400 can drive the auto-focus lens module 300 to move, so it can compensate the displacement of the auto-focus lens module 300 due to shaking, so as to ensure the shooting quality.

请一并参阅图4及图5，具体地，第一导引件包括开设于第一电路板200上的至少三个不在同一直线上的第一圆形导轨410，第二导引件包括开设于自动对焦镜头模组300的底部的至少三个不在同一直线上的第二圆形导轨420，第一连接件包括设置于第一圆形导轨410与第二圆形导轨420之间的第一滚珠430。Please refer to FIG. 4 and FIG. 5 together. Specifically, the first guide includes at least three first circular guide rails 410 that are not on the same straight line provided on the first circuit board 200, and the second guide includes a set of There are at least three second circular guide rails 420 that are not on the same straight line at the bottom of the autofocus lens module 300, and the first connecting member includes a first circular guide rail 410 disposed between the first circular guide rail 410 and the second circular guide rail 420. Ball 430.

例如，在本实施方式中，第一电路板200为方形。第一圆形导轨410的数量为四个，四个第一圆形导轨410分别开设于第一电路板200的四个角落，且位于第一电路板200面向于第二电路板310的一面。第二圆形导轨420开设于自动对焦镜头模组300的第二电路板310上，且位于第二电路板310面向于第一电路板200的一面，第二电路板310为方形。第二圆形导轨420的数量为四个，四个第二圆形导轨420分别位于第一电路板200的四个角落。第一圆形导轨410和第二圆形导轨420均可以为圆形凹槽。For example, in this embodiment, the first circuit board 200 is square. The number of the first circular guide rails 410 is four, and the four first circular guide rails 410 are respectively provided at four corners of the first circuit board 200 and located on a side of the first circuit board 200 facing the second circuit board 310 . The second circular guide rail 420 is set on the second circuit board 310 of the auto-focus lens module 300 and is located on a side of the second circuit board 310 facing the first circuit board 200 . The second circuit board 310 is square. The number of the second circular guide rails 420 is four, and the four second circular guide rails 420 are respectively located at four corners of the first circuit board 200 . Both the first circular guide rail 410 and the second circular guide rail 420 may be circular grooves.

对应地，第一滚珠430的数量也为四个，每一第一滚珠430分别位于一第一圆形导轨410与一第二圆形导轨420之间。第一圆形导轨410的直径等于第二圆形导轨420的直径，第一滚珠430的直径小于第一圆形导轨410的直径，第一滚珠430的直径大于两倍的第一圆形导轨410的深度。具体地，第一滚珠430可以为陶瓷滚珠。第一滚珠430可在第一圆形导轨410与第二圆形导轨420之间滚动，且第一滚珠430可起到支撑整个自动对焦镜头模组300的作用。Correspondingly, the number of the first balls 430 is also four, and each first ball 430 is respectively located between a first circular guide rail 410 and a second circular guide rail 420 . The diameter of the first circular guide 410 is equal to the diameter of the second circular guide 420, the diameter of the first ball 430 is smaller than the diameter of the first circular guide 410, the diameter of the first ball 430 is greater than twice the first circular guide 410 depth. Specifically, the first ball 430 may be a ceramic ball. The first ball 430 can roll between the first circular guide rail 410 and the second circular guide rail 420 , and the first ball 430 can support the entire auto-focus lens module 300 .

第一圆形导轨410、第二圆形导轨420及第一滚珠430能够实现导引自动对焦镜头模组300沿垂直于光轴的平面移动以补偿因抖动而产生的位移，且结构简单，成本较低。另外，由于在实现抖动补偿时，整个自动对焦镜头模组300都一起产生移动，因此，镜头模组与影像感测器330始终保持在同一光轴上，因此可以避免四周解像力下降的问题。The first circular guide rail 410, the second circular guide rail 420, and the first ball 430 can guide the autofocus lens module 300 to move along a plane perpendicular to the optical axis to compensate for the displacement caused by shaking, and the structure is simple and the cost is low. lower. In addition, since the entire auto-focus lens module 300 moves together when implementing shake compensation, the lens module and the image sensor 330 are always kept on the same optical axis, thereby avoiding the problem of decreased resolution in the surrounding area.

请参阅图1，第一驱动件包括第一线圈441、第二线圈442、第一磁性体(图未示)及第二磁性体444。第一线圈441设于自动对焦镜头模组300的底部，具体地，请一并参阅图5，第一线圈441设置于第二电路板310的底部。Please refer to FIG. 1 , the first driving element includes a first coil 441 , a second coil 442 , a first magnetic body (not shown in the figure) and a second magnetic body 444 . The first coil 441 is disposed at the bottom of the auto-focus lens module 300 . Specifically, referring to FIG. 5 , the first coil 441 is disposed at the bottom of the second circuit board 310 .

第一线圈441与第一磁性体(图未示)的数量均为两个，第二电路板310为方形状，通过在第二电路板310面向于第一电路板200的一面开设两个第一收容槽，将两个第一线圈441分别设置于第一收容槽内。两个第一收容槽位于第二电路板310的两条相对的侧边。第一线圈441与第二电路板310电连接，第二电路板310为第一线圈441供电。开设第一收容槽，第一线圈441收容于第一收容槽内，可以减小整个摄像头模组10的高度。The number of the first coil 441 and the first magnetic body (not shown) are both two, and the second circuit board 310 is in a square shape. A storage slot, the two first coils 441 are respectively disposed in the first storage slot. The two first receiving slots are located on two opposite sides of the second circuit board 310 . The first coil 441 is electrically connected to the second circuit board 310 , and the second circuit board 310 supplies power to the first coil 441 . The first receiving groove is opened, and the first coil 441 is accommodated in the first receiving groove, which can reduce the height of the entire camera module 10 .

请参阅图1，第一磁性体设于第一电路板200上且与第一线圈441相对设置，具体地，第一电路板200背向于第二电路板310的一面开设有两个第二收容槽，每个第二收容槽内分别收容一第一磁性体，两个第二收容槽分别位于第一电路板200两条相对的侧边上。第一线圈441通过通电产生磁场并与第一磁性体相作用从而驱动自动对焦镜头模组300沿平面内的第一方向(如图4中的X轴方向)移动。第一磁性体可以为磁铁。Please refer to FIG. 1 , the first magnetic body is arranged on the first circuit board 200 and is opposite to the first coil 441 . Each of the second receiving slots accommodates a first magnetic body respectively, and the two second receiving slots are respectively located on two opposite sides of the first circuit board 200 . The first coil 441 generates a magnetic field by being energized and interacts with the first magnetic body to drive the auto-focus lens module 300 to move along the first direction in the plane (such as the X-axis direction in FIG. 4 ). The first magnetic body may be a magnet.

第二线圈442设于自动对焦镜头模组300的底部，具体地，请一并参阅图5，第二线圈442设置于第二电路板310的底部。第二线圈442及第二磁性体444的数量均为两个。第二电路板310为方形状，通过在第二电路板310面向于第一电路板200的一面开设两个第三收容槽，将两个第二线圈442分别设置于第三收容槽内。两个第三收容槽位于第二电路板310的两条相对的侧边，且与第一收容槽相邻。第二线圈442与第二电路板310电连接，第二电路板310为第二线圈442供电。The second coil 442 is disposed at the bottom of the auto-focus lens module 300 . Specifically, referring to FIG. 5 , the second coil 442 is disposed at the bottom of the second circuit board 310 . There are two second coils 442 and two second magnetic bodies 444 . The second circuit board 310 has a square shape. Two third receiving grooves are opened on the side of the second circuit board 310 facing the first circuit board 200 , and the two second coils 442 are disposed in the third receiving grooves respectively. The two third receiving grooves are located on two opposite sides of the second circuit board 310 and are adjacent to the first receiving grooves. The second coil 442 is electrically connected to the second circuit board 310 , and the second circuit board 310 supplies power to the second coil 442 .

请参阅图1，第二磁性体444设于第一电路板200上且与第二线圈442相对设置，具体地，第一电路板200背向于第二电路板310的一面开设有两个第四收容槽，每个第四收容槽内分别收容一第二磁性体444，两个第四收容槽分别位于第一电路板200两条相对的侧边上，且与第二收容槽相邻。第二线圈442通过通电产生磁场并与第二磁性体444相作用从而驱动自动对焦镜头模组300沿平面内的第二方向(如图4中的Y轴方向)移动，其中第一方向垂直于第二方向。第二磁性体444可以为磁铁。Please refer to FIG. 1 , the second magnetic body 444 is arranged on the first circuit board 200 and opposite to the second coil 442 , specifically, two first circuit boards 200 are provided on the side facing away from the second circuit board 310 . Four receiving slots, each of the fourth receiving slots accommodates a second magnetic body 444 respectively, and the two fourth receiving slots are respectively located on two opposite sides of the first circuit board 200 and adjacent to the second receiving slots. The second coil 442 generates a magnetic field by being energized and interacts with the second magnetic body 444 to drive the autofocus lens module 300 to move along the second direction in the plane (such as the Y-axis direction in FIG. 4 ), wherein the first direction is perpendicular to second direction. The second magnetic body 444 may be a magnet.

通过第一线圈441、第二线圈442、第一磁性体及第二磁性体444驱动整个自动对焦镜头模组300相对于第一电路板200在垂直于光轴方向的平面内移动。Through the first coil 441 , the second coil 442 , the first magnetic body and the second magnetic body 444 , the entire autofocus lens module 300 is driven to move relative to the first circuit board 200 in a plane perpendicular to the direction of the optical axis.

具体到本实施方式中，防抖机构400还包括第二连接件、第三导引件及第四导引件。第三导引件设置于支架外壳100上开设有通光孔100b的顶壁的内表面，第四导引件设置于自动对焦镜头模组300的顶部，第二连接件连接第三导引件与第四导引件。Specifically in this embodiment, the anti-shake mechanism 400 further includes a second connecting part, a third guiding part and a fourth guiding part. The third guide is arranged on the inner surface of the top wall of the bracket housing 100 with the light hole 100b, the fourth guide is arranged on the top of the autofocus lens module 300, and the second connecting member is connected to the third guide. with the fourth guide.

具体地，第三导引件包括开设于支架外壳100上开设有通光孔100b的顶壁的内表面的至少三个不在同一直线上的第三圆形导轨(图未示)，第四导引件包括开设于自动对焦镜头模组300的顶部且与第三圆形导轨对应设置的至少三个不在同一直线上的第四圆形导轨450，第二连接件包括设于多个第三圆形导轨与多个第四圆形导轨450之间的多个第二滚珠460。Specifically, the third guide includes at least three third circular guide rails (not shown) that are not on the same straight line and are opened on the inner surface of the top wall of the bracket housing 100 provided with the light through hole 100b. The guide includes at least three fourth circular guide rails 450 that are set on the top of the auto-focus lens module 300 and corresponding to the third circular guide rails and are not on the same straight line. A plurality of second balls 460 between the circular guide rails and the fourth circular guide rails 450 .

例如，请一并参阅图1及图3，在本实施方式中，支架外壳100为中空长方体状。第三圆形导轨的数量为四个，四个第三圆形导轨分别开设于支架外壳100上开设有通光孔100b的顶壁的内表面的四个角落。第四圆形导轨450的数量为四个，四个第四圆形导轨450分别位于自动对焦镜头模组300的音圈马达390的顶部的四个角落。第三圆形导轨与第四圆形导轨450均可以为圆形凹槽。For example, please refer to FIG. 1 and FIG. 3 together. In this embodiment, the bracket housing 100 is in the shape of a hollow cuboid. The number of the third circular guide rails is four, and the four third circular guide rails are respectively provided on the four corners of the inner surface of the top wall of the bracket housing 100 provided with the light through hole 100b. The number of the fourth circular guide rails 450 is four, and the four fourth circular guide rails 450 are respectively located at four corners of the top of the voice coil motor 390 of the auto-focus lens module 300 . Both the third circular guide rail and the fourth circular guide rail 450 may be circular grooves.

对应地，第二滚珠460的数量也为四个，每一第二滚珠460分别位于一第三圆形导轨与一第四圆形导轨450之间。第四圆形导轨450的直径等于第三圆形导轨的直径，第二滚珠460的直径小于第三圆形导轨的直径，第二滚珠460的直径大于两位的第三圆形导轨的深度。具体地，第二滚珠460可以为陶瓷滚珠。Correspondingly, the number of the second balls 460 is also four, and each second ball 460 is respectively located between a third circular guide rail and a fourth circular guide rail 450 . The diameter of the fourth circular guide 450 is equal to the diameter of the third circular guide, the diameter of the second ball 460 is smaller than the diameter of the third circular guide, and the diameter of the second ball 460 is greater than the depth of the third circular guide. Specifically, the second ball 460 may be a ceramic ball.

第二连接件、第三引导件及第四引导件与第一连接件、第一导引件及第二导引件共同限定自动对焦镜头模组300相对于第一电路板200移动的平面，使得自动对焦镜头模组300能更平稳地移动。The second connecting piece, the third guiding piece and the fourth guiding piece together with the first connecting piece, the first guiding piece and the second guiding piece define the plane on which the autofocus lens module 300 moves relative to the first circuit board 200 , This enables the auto-focus lens module 300 to move more smoothly.

具体到本实施方式中，防抖机构400还包括第一检测元件471、第二检测元件472及控制器(图未示)。第一检测元件471用于检测第一线圈441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441的电流以使载体360沿第一方向(X轴方向)移动。第二检测元件472用于检测第二线圈442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442的电流以使载体360沿第二方向(Y轴方向)移动。Specifically in this embodiment, the anti-shake mechanism 400 further includes a first detection element 471 , a second detection element 472 and a controller (not shown). The first detection element 471 is used to detect the first magnetic variation of the first coil 441 and feed it back to the controller. The controller controls the current of the first coil 441 according to the first magnetic variation so that the carrier 360 moves along the first direction (X axis direction) to move. The second detection element 472 is used to detect the second magnetic variation of the second coil 442 and feed it back to the controller. The controller controls the current of the second coil 442 according to the second magnetic variation so that the carrier 360 moves along the second direction (Y axis direction) to move.

具体地，两个第一线圈441中的其中一个第一线圈441的旁边设置有第一检测元件471。两个第二线圈442中的其中一个第二线圈442的旁边设置有第二检测元件472。进一步地，第一检测元件471与第二检测元件472均为霍尔芯片。Specifically, a first detection element 471 is disposed beside one of the two first coils 441 . A second detection element 472 is arranged beside one of the second coils 442 of the two second coils 442 . Further, both the first detection element 471 and the second detection element 472 are Hall chips.

当自动对焦镜头模组300在X轴方向的移动量为A时，第一线圈441由第一电路板200进行供电，第一检测元件471检测第一线圈441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441的电流，同时第二线圈442不供电，第一线圈441产生的磁场与第一磁性体相作用，如此使得第一滚珠430带动自动对焦镜头模组300沿X轴方向运动以反向补偿抖动量-A，进而实现抖动的补偿。Y轴方向上的抖动补偿同理。When the movement amount of the autofocus lens module 300 in the X-axis direction is A, the first coil 441 is powered by the first circuit board 200, and the first detection element 471 detects the magnetic variation of the first coil 441 and feeds it back to the controller. , the controller controls the current of the first coil 441 according to the amount of magnetic variation, while the second coil 442 does not supply power, and the magnetic field generated by the first coil 441 interacts with the first magnetic body, so that the first ball 430 drives the autofocus lens module The 300 moves along the X-axis direction to reversely compensate the shaking amount -A, thereby realizing the compensation of shaking. The same is true for the shake compensation in the Y-axis direction.

上述具有对焦及防抖功能的摄像头模组在实现对焦及防抖功能时并未采用悬吊线结构，因此无需采用特制材料，结构简单，节约了成本。而且产生抖动补偿时，整个自动对焦镜头模组都相对于垂直于光轴的平面移动，保证了影像感测器与镜头模组始终在同一光轴上，避免了四周解像力下降的问题。The above-mentioned camera module with focus and anti-shake functions does not use a suspension wire structure when realizing the focus and anti-shake functions, so no special materials are needed, the structure is simple, and the cost is saved. Moreover, when shake compensation occurs, the entire autofocus lens module moves relative to a plane perpendicular to the optical axis, ensuring that the image sensor and lens module are always on the same optical axis, avoiding the problem of reduced resolution around the lens.

以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. there is a camera module for focusing and anti-trembling function, it is characterized in that, comprising:

Rack shell, has an openend, and one end relative with described openend offers light hole;

First circuit board, is arranged at described openend, and described rack shell and described first circuit board surround a receiving space jointly;

Autofocus lens module, is contained in described receiving space, and described autofocus lens module is electrically connected with described first circuit board; And

Stabilization mechanism, comprise the first web member, the first actuator, the first guide member and the second guide member, described first guide member is positioned on described first circuit board, described second guide member is positioned at the bottom of described autofocus lens module, described first web member connects described first guide member and described second guide member, and described first actuator is for driving described autofocus lens module relative to described first circuit board along the planar movement perpendicular to the optical axis of described autofocus lens module.

2. the camera module with focusing and anti-trembling function according to claim 1, it is characterized in that, described first guide member comprises and is opened on described first circuit board at least three not the first circular guideways on the same line, described second guide member comprises at least three of the bottom being opened in described autofocus lens module not the second circular guideways on the same line, and described first web member comprises the first ball be arranged between described first circular guideway and described second circular guideway.

3. the camera module with focusing and anti-trembling function according to claim 2, it is characterized in that, the diameter of described first circular guideway equals the diameter of described second circular guideway, the diameter of described first ball is less than the diameter of described first circular guideway, and the diameter of described first ball is greater than the degree of depth of described first circular guideway of twice.

4. the camera module with focusing and anti-trembling function according to claim 1, it is characterized in that, described first actuator comprises the first coil, the second coil, the first magnetic and the second magnetic;

The bottom of described autofocus lens module is located at by described first coil, described first magnetic to be located on described first circuit board and to be oppositely arranged with described first coil, and described first coil produces magnetic field by energising and acts on mutually with described first magnetic thus drive described autofocus lens module to move along the first direction in described plane;

The bottom of described autofocus lens module is located at by described second coil, described second magnetic to be located on described first line plate and relative with described second coil, and described second coil produces magnetic field by energising and acts on mutually with described second magnetic thus drive described autofocus lens module to move along the second direction in described plane; Wherein, described first direction is perpendicular to described second direction.

5. the camera module with focusing and anti-trembling function according to claim 1, it is characterized in that, described stabilization mechanism also comprises the second web member, the 3rd guide member and the 4th guide member, described 3rd guide member is arranged at the inside surface of the roof described rack shell offering light hole, described 4th guide member is arranged at the top of described autofocus lens module, and described second web member connects described 3rd guide member and described 4th guide member.

6. the camera module with focusing and anti-trembling function according to claim 5, it is characterized in that, described 3rd guide member comprises at least three of the inside surface being opened in the roof described rack shell offering light hole not the 3rd circular guideways on the same line;

Described 4th guide member comprise the top that is opened in described autofocus lens module and with corresponding at least three of arranging of described 3rd circular guideway not the 4th circular guideway on the same line;

Described second web member comprises multiple second balls be located between described multiple 3rd circular guideway and described multiple 4th circular guideway.

7. the camera module with focusing and anti-trembling function according to claim 6, it is characterized in that, the diameter of described 3rd circular guideway equals the diameter of described 4th circular guideway, the diameter of described second ball is less than the diameter of described 3rd circular guideway, and the diameter of described second ball is greater than the degree of depth of described 3rd circular guideway of twice.

8. the camera module with focusing and anti-trembling function according to claim 4, it is characterized in that, described stabilization mechanism also comprises the first detecting element, the second detecting element and controller;

Described first detecting element is for detecting the first magnetic variable quantity of described first coil and feeding back to described controller, and the electric current that described controller controls described first coil according to described first magnetic variable quantity moves along described first direction to make described carrier;

Described second detecting element is for detecting the second magnetic variable quantity of described second coil and feeding back to described controller, and the electric current that described controller controls described second coil according to described second magnetic variable quantity moves along described second direction to make described carrier.

9. the camera module with focusing and anti-trembling function according to claim 1, it is characterized in that, described autofocus lens module comprises second circuit board, base, image sensor, optical filter, camera lens module, carrier, focusing coil, focusing magnet, upper shell fragment, lower shell fragment and voice coil motor, described second circuit board is electrically connected with described first circuit board, described second guide member is positioned at the bottom of described second circuit board, the bottom of described base is arranged on described second circuit board, described image sensor is arranged on described second circuit board, and be positioned at the inside of described base, described optical filter to be arranged on described base and to be positioned at above described image sensor, described carrier is hollow cylindrical configuration, described camera lens module is arranged in described carrier, described focusing coil winding is in the outer peripheral edges of described carrier, described focusing coil is electrically connected with described second circuit board, described focusing magnet to be contained in described voice coil motor and to be oppositely arranged with described focusing coil, one end of described carrier is arranged on described upper shell fragment, the other end of described carrier is arranged on described lower shell fragment, described camera lens module, carrier, focusing coil, upper shell fragment and lower shell fragment are contained in described voice coil motor.

10. the camera module with focusing and anti-trembling function according to claim 9, it is characterized in that, described second circuit board is Rigid Flex, comprise PCB substrate and FPC wiring board, described PCB substrate is arranged at the bottom of described base, and described FPC wiring board is electrically connected with described first circuit board.