WO2023284276A1 - 弹性电路板 - Google Patents

弹性电路板 Download PDF

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Publication number
WO2023284276A1
WO2023284276A1 PCT/CN2022/071566 CN2022071566W WO2023284276A1 WO 2023284276 A1 WO2023284276 A1 WO 2023284276A1 CN 2022071566 W CN2022071566 W CN 2022071566W WO 2023284276 A1 WO2023284276 A1 WO 2023284276A1
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WO
WIPO (PCT)
Prior art keywords
connecting arm
board
plane
circuit board
board body
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PCT/CN2022/071566
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English (en)
French (fr)
Inventor
麦练智
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高瞻创新科技有限公司
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Publication of WO2023284276A1 publication Critical patent/WO2023284276A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0393—Flexible materials

Definitions

  • the invention relates to the technical field of anti-shake photography, in particular to an elastic circuit board.
  • the device includes at least one zoom (zoom), auto-focus (Auto-Focus) or fixed-focus (Fixed-Focus) compact camera module.
  • zoom zoom
  • Auto-Focus auto-focus
  • Fixed-focus Fixed-focus
  • the existing mainstream technology reads the vibration sensor (such as gyroscope and acceleration sensor), calculates the vibration waveform and the required compensation angle, and compensates the image blur and shaking caused by vibration through electronic, optical, or mechanical methods to improve the image quality effect.
  • the vibration sensor such as gyroscope and acceleration sensor
  • the sensor-shift stabilizer uses an actuator to move the image sensor through a mechanical method, so as to achieve relative motion between the optical component and the image sensor, and offset the image shake caused by vibration.
  • SSS does not need to move heavy lenses or lenses during the anti-shake process, so it has great advantages in high-frequency anti-shake effects and power consumption.
  • the purpose of the present invention is to provide an elastic circuit board, which enables the first board body to have multi-axis degrees of freedom, and the connection method is simple and reliable, saves occupied space, and reduces processing difficulty and cost.
  • the present invention provides a flexible circuit board, comprising:
  • At least one elastic first connecting portion one side of which extends toward the outside of the end surface of the first plate, one end of the first connecting portion is connected to the first plate;
  • At least one second board connected to an end of the first connecting portion away from the first board
  • the first connecting part includes a first connecting arm and a second connecting arm connected to each other, one end of the first connecting arm is connected to the first plate body, and one end of the second connecting arm is connected to the first connecting arm.
  • an elastic circuit board has the beneficial effect that: the elastic first connecting part connects the first board and the second board, so that the first connecting part is located where the first board is located.
  • the movable first board also has a degree of freedom to translate in the plane where the first board is located;
  • the first connecting part extends to the outside of the surface of the first board, so that the first connection
  • the part has sufficient degrees of freedom to rotate within the plane where the first board is located, and the movable first board also has degrees of freedom to rotate accordingly.
  • the first board body has at least two degrees of freedom, and the connection method is simple and reliable, which saves occupied space and reduces processing difficulty and cost.
  • the ratio of the length and thickness of the first connecting arm to the second connecting arm is greater than 10.
  • the first connecting arm and the second connecting arm are connected by a bending part, and the bending part is arranged in a U-shape with an opening facing the first board body.
  • the first board is provided with an image sensor, and the image sensor is used to transmit the received image signal to the second board through the first board.
  • the lengths of the first connecting arm and the second connecting arm are both greater than the length of the side of the image sensor.
  • At least one second connection part is provided on the first board body, and the second connection part is connected to the first connection arm, and a third connection part is provided on the second board body.
  • a connecting part, the third connecting part is connected to the second connecting arm.
  • a plurality of the first connecting parts are connected to the first board body, and one end of each of the first connecting parts is connected to the second connecting part.
  • the elastic circuit board in the embodiment of the present invention further includes a plurality of second board bodies, a plurality of second connecting parts are provided on the first board body, and the plurality of second connecting parts are respectively connected to The plurality of second plates are respectively connected to the plurality of first connection parts.
  • the first connecting portion includes at least two board bodies stacked in layers, and a gap is provided between the board bodies.
  • the first connecting arm and the second connecting arm include at least two board bodies arranged in a stacked manner, and there is a gap between the board bodies.
  • Fig. 1 is a schematic structural view of an elastic circuit board according to an embodiment of the present invention.
  • Fig. 2 is a schematic top view of an elastic circuit board according to an embodiment of the present invention.
  • FIG. 3 is a schematic top view of an elastic circuit board according to another embodiment of the present invention.
  • Fig. 4 is a schematic structural view of an embodiment of the first connection part of A in Fig. 2;
  • Fig. 5 is a partial structural schematic diagram of the first connecting part in another embodiment
  • Fig. 6 is a schematic side view of an elastic circuit board according to an embodiment of the present invention.
  • Fig. 7 is a schematic diagram of an exploded structure of an elastic circuit board and an anti-shake drive module according to an embodiment of the present invention
  • Fig. 8 is a schematic diagram of the anti-shake driving mold installed on the elastic circuit board according to the embodiment of the present invention.
  • the first plate body 11, the first vertex angle; 12, the second vertex angle; 13, the third vertex angle; 14, the fourth vertex angle; 15, the second connecting part; 16, the lens; 17 1.
  • orientation descriptions such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
  • the preferred embodiment of the present invention provides an elastic circuit board, which includes a movable first board body 1, a second board body 2 and a first elastic connecting part 3, wherein,
  • the second plate body 2 is used as a fixed end, and a driver is fixed on the first plate body 1, and as a movable end, the two ends of the elastic first connecting part 3 are respectively connected to the first plate body 1 and the second plate body 2, so that
  • the end of the first connecting part 3 connected to the first board 1 has degrees of freedom in translation and rotation in the plane of the first board 1, so the movable first board 1 also has the freedom of translation and rotation in the plane degrees, so as to realize the three-axis movement of the first plate body 1 .
  • the elastic circuit board further includes at least one elastic first connecting part 3, one end of the first connecting part 3 is connected to the first board body 1, and the first connecting part 3
  • the part 3 extends toward the outside of the surface of the first plate body 1, so that the first connecting part 3 has the degree of freedom to rotate on the plane where the first plate body 1 is located, and the movable first plate body 1 also has the ability to rotate accordingly. degrees of freedom.
  • the first connecting part 3 includes a first connecting arm 31 and a second connecting arm 32 connected to each other, and one end of the first connecting arm 31 is connected to the first plate body 1 , and one end of the second connecting arm 32 is connected to the second plate body 2 .
  • the plane where the first connecting arm 31 is located is the first plane
  • the plane where the second connecting arm 32 is located is the second plane
  • the first plane and the second plane are The included angle between the two planes and the surface of the first plate body 1 is B, wherein, 70 ⁇ B ⁇ 110°, leaving enough space for the first connecting part 3 to move in the plane where the first plate body 1 is located, for A sufficient degree of freedom for rotation is left for the first connection part 3 .
  • the first connecting portion 3 is arranged perpendicular to the surface of the first plate body 1 .
  • the first connecting part 3 is perpendicular to the surface of the first plate body 1 , so that the rotatable angle of the first connecting part 3 relative to the plane of the first plate body 1 is maximized, and the degree of freedom is maximized.
  • the included angle between the first plane and the second plane is C, where 70 ⁇ C ⁇ 110°.
  • the angle C between the first plane and the second plane is 90°
  • the first connecting arm 31 is located in the X-axis direction of the plane where the first board 1 is located
  • the second connecting arm 32 is located on the first board 1
  • the first connecting arm 31 and the second connecting arm 32 are both arranged perpendicular to the first plate body 1 .
  • the second connecting arm 32 When the first plate body 1 moves on the X-axis of the plane where the first plate body 1 is located, the second connecting arm 32 will bend and deform , but the first connecting arm 31 is close to no deformation, that is, the second connecting arm 32 provides the required deformation when the first plate 1 moves in the X-axis direction; and when the first plate 1 moves on the Y-axis, The first connecting arm 31 will be bent and deformed, but the second connecting arm 32 will not be deformed, that is, the first connecting arm 31 provides the required deformation when the first plate body 1 moves to the Y axis; further, when the first connecting arm 31 When the plate body 1 moves in its plane and not along the X-axis or the Y-axis direction, both the first rotating arm and the second rotating arm need to provide partial deformation for the first plate body 1 to move horizontally.
  • the first plate body 1 rotates in the plane where the first plate body 1 is located, that is, when it is turned over in the Rz direction, the following situation occurs.
  • the first connecting arm 31 and the second connecting arm 32 will also deform in the clockwise direction with the first plate body 1, at this time the first connecting arm 31 and the second connecting arm 32 provide the deformation required for the clockwise rotation of the first plate body 1 in the Rz direction;
  • the first connecting arm 31 and the second connecting arm 32 will also deform along with the first plate body 1 in the counterclockwise direction.
  • the first connecting arm 31 and the second connecting arm 32 The deformation required for the counterclockwise rotation of the first plate body 1 along the Rz direction is provided.
  • the ratio of the length and thickness of the first connecting arm 31 and the second connecting arm 32 is greater than 10, which provides enough displacement space and improves the flexibility of the device It ensures the elasticity of the first connecting arm 31 and the second connecting arm 32, and prevents the first connecting arm 31 and the second connecting arm 32 from being damaged when the first plate 1 is translated or turned over.
  • the first connecting arm 31 and the second connecting arm 32 are connected by a bent portion 33 , the bent portion 33 is arranged in a U-shape and the opening faces the first connecting arm 32 .
  • a plate body 1, the bending portion 33 vertically connects the first connecting arm 31 and the second connecting arm 32, which can provide a larger range of motion for the first connecting arm 31 or the second connecting arm 32, thereby further increasing the first connection
  • an image sensor 4 is arranged on the first board body 1, and the image sensor 4 can move with the movement of the first board body 1, and can move with the movement of the first board body 1
  • the rotation of the body 1 rotates, and the image signal received by the image sensor 4 is directly transmitted to the first board body 1 , and then transmitted to the second board body 2 through the first connecting portion 3 .
  • the first board 1 is provided with a plurality of image sensors 4 , and the lengths of the first connecting arm 31 and the second connecting arm 32 are both greater than the length of the side of each image sensor 4 .
  • an anti-shake driving module is further provided on the first board body 1 for driving the translation and rotation of the first board body 1 .
  • the anti-shake drive module includes at least one anti-shake motor 19, at least one lens 16, and at least one module casing; the module casing includes an upper casing 17 and a lower casing 18, and the upper casing 17 and the lower casing 18 are respectively provided with An accommodating cavity is formed above and below the first board 4 and between the upper housing 17 and the lower housing 18 to accommodate the first board 1, the image sensor 4, the lens 16 and the anti-shake motor 19 therein .
  • the first board 1 is mechanically connected to the anti-shake motor 19 in the anti-shake module;
  • the second board 2 is mechanically connected to the module casing;
  • each anti-shake motor 19 can drive at least one first board 1 for multi-axis translational movement;
  • at least one lower housing 18 is mechanically connected with at least one anti-shake motor 19; by controlling each anti-shake motor 19, the anti-shake force of at least one axis and one axis of the first plate body 1 can be changed
  • the tumbling anti-shake moment enables at least one image sensor 4 to perform at least two-axis anti-shake motion.
  • At least one anti-shake motor 19 is composed of a voice coil motor, which drives the translation of the first board 1 and the image sensor 4 by controlling the electromagnetic force.
  • At least one anti-shake motor 19 is composed of a memory metal motor, which drives the translation of the first board 1 and the image sensor 4 by controlling the temperature of the memory metal.
  • At least one anti-shake motor 19 can drive the lens 16 to move along the optical axis of the lens 16 to achieve the effect of automatic focusing.
  • the first plate body 1 is a rectangular structure, which sequentially includes a first vertex 11, a second vertex 12, and a third vertex along the counterclockwise direction. 13 and the fourth top corner 14.
  • the rectangular structure is more suitable for the existing camera module structure, and can make full use of the limited space of the camera module.
  • the present invention Compared with the multiple folded elastic circuit boards in some existing anti-shake technologies (refer to patents CN102749697B and US8208031B2), the present invention only needs at least one bending part 33 that elastically deforms during the anti-shake movement, and the first board At least one bend between the body and the first connecting arm 31 is not deformed during the anti-shake movement. Therefore, the structure and production process of the present invention are relatively simple, which is beneficial to reduce production cost and difficulty. As shown in Figures 1 and 2, in some embodiments of the present invention, at least one second connecting portion 15 is provided on the first plate body 1, and the second connecting portion 15 is connected to the first connecting arm 31, and the second plate body 2 is provided with a third connecting portion 21, and the third connecting portion 21 is connected to the second connecting arm 32.
  • the second connecting portion 15 is disposed at the first corner 11 of the first board 1
  • the third connecting portion 21 is disposed corresponding to the third corner 13 of the first board 1 .
  • the second connecting part 15 and the third connecting part 21 are arranged at the opposite corners of the first plate body 1, and the distance between the two is maximized in a limited space, giving the first connecting part the largest range of motion.
  • the reliability of the elastic connector is ensured, and the first plate body 1 has a high degree of freedom of movement, which is beneficial to cooperate with the multi-axis freedom of the camera module.
  • the bent portion 33 is set corresponding to the second vertex 12 of the first plate body 1; the first connecting arm 31 and the second connecting arm 32 are respectively connected to the The sides are parallel. Specifically, by arranging the bent portion 33 at the second vertex 12, the lengths of the first connecting arm 31 and the second connecting arm 32 can be made close to each other, and both the first connecting arm 31 and the second connecting arm 32 are the same as the first connecting arm 32.
  • the sides of a board body 1 are parallel, which ensures that the entire circuit board structure is located on the same horizontal plane, and can ensure that the range of motion of the first connecting arm 31 and the second connecting arm 32 is uniform, which is convenient for the camera module to adopt a unified method for anti-shake.
  • the control method is used to control and reduce costs.
  • a plurality of first connecting parts 3 are connected to the first plate body 1 , and one end of each first connecting part 3 is connected to the second connecting part 15 .
  • two first connecting parts 3 are provided, and the bent parts 33 of the two first connecting parts 3 are respectively arranged corresponding to the second vertex 12 and the fourth vertex 14 of the first plate body 1;
  • Each of the first connecting arm 31 and the second connecting arm 32 is parallel to the side of the first plate body 1 .
  • a plurality of second boards 2 are also included, and the first board 1 is provided with a plurality of second connecting parts 15, and the plurality of second connecting parts 15 are respectively The first connection part 3 is connected, and the plurality of second plate bodies 2 are respectively connected to the plurality of first connection parts 3 .
  • the plurality of second plate bodies 2 are respectively connected to the plurality of first connection parts 3 .
  • there are two second plate bodies 2 and each third connecting portion 21 on the second plate body 2 is connected to a first connecting portion 3 .
  • the first board body 1 is provided with a plurality of second connecting parts 15, and each second connecting part 15 is correspondingly connected with a first connecting part 3, which can ensure that the plurality of first connecting parts 3 have sufficient mobility degrees of freedom, and the freedom of movement of the two is the same, which is convenient for the camera module to use a unified control method to control the anti-shake, which reduces the cost, and also reduces the spring coefficient and anti-shake power consumption.
  • the two second connecting parts 15 are respectively arranged at the second vertex 12 and the fourth vertex 14 of the first plate body 1, and the bending parts 33 of the two first connecting parts 3 are connected with the first plate 1 respectively.
  • a vertex 11 and a third vertex 13 are provided correspondingly, and the first connecting arm 31 and the second connecting arm 32 of each first connecting portion 3 are parallel to the side of the first board 1 .
  • This setting meets the structure or pixel requirements of different camera modules, and two second boards 2 need to be used for control or transmission, so that the flexible circuit board can make full use of the space, and ensure its reliability and drop resistance.
  • the first connecting part 3 includes at least two layers of plate bodies stacked, and a gap 303 is provided between the plate bodies.
  • the first connecting part 3 includes a third plate 301 disposed close to the first plate 1 and a fourth plate 302 disposed away from the first plate 1 , between the third plate 301 and the fourth plate 302 There is a gap 303; the layered design can reduce the spring coefficient of the elastic part of the elastic circuit board, reduce the anti-shake power consumption and improve the anti-shake effect.
  • each of the first connecting arm 31 and the second connecting arm 32 includes at least two laminated boards, and the bent portion 33 is an integral board. Since the bending portion 33 does not adopt a layered design, it is more suitable to permanently bend the bending portion 33 by stamping, which is convenient for production.
  • the present invention can use traditional and relatively simple elastic circuit boards, which is beneficial to reduce production costs and increase production capacity .
  • the working process of the present invention is: the first connecting part 3 with elasticity connects the first plate body 1 and the second plate body 2, so that the first connecting part 3 has a degree of freedom in the plane where the first plate body 1 is located, so it can move
  • the first plate body 1 also has the degree of freedom to translate in the plane where the first plate body 1 is located
  • the first connecting part 3 extends to the outside of the end surface of the first plate body 1, so that the first connecting part 3 can With sufficient degrees of freedom to rotate in the plane where the first board is located, the movable first board 1 also has degrees of freedom to rotate.
  • the embodiment of the present invention provides an elastic circuit board, which enables the first board body 1 to have multi-axis degrees of freedom through the first connecting piece extending to the outside of the surface of the first board body 1, and the connection method is simple and reliable. , saving occupied space, reducing processing difficulty and processing cost.

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  • Microelectronics & Electronic Packaging (AREA)
  • Adjustment Of Camera Lenses (AREA)
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Abstract

本发明涉及防抖摄影技术领域，公开了一种弹性电路板，包括第一板体；至少一个具有弹性的第一连接部，其一侧朝向第一板体的表面的外侧延伸，第一连接部的一端连接第一板体；以及至少一个第二板体，其连接于第一连接部远离第一板体的一端；其中，第一板体通过第一连接部相对第二板体至少两轴移动。第一连接部连接第一板体和第二板体，使第一连接部在第一板体所在平面内具有自由度；第一连接部向第一板体的表面的外侧延伸，使第一连接部具有可以在第一板体所在平面内旋转的足够的自由度。通过第一连接件，使第一板体具有多轴自由度，且连接方式简单可靠，节省占用的空间，降低了加工难度和加工成本。

Description

弹性电路板 技术领域
本发明涉及防抖摄影技术领域，特别是涉及一种弹性电路板。
背景技术
近年来具有拍摄功能的小型移动装置十分普及，应用范围亦不断扩展，包括智能手机﹑智能眼镜﹑运动相机﹑执法记录仪及行车记录仪。在所述装置中，包含至少一颗变焦(zoom)﹑自动对焦(Auto-Focus)或定焦(Fixed-Focus)小型相机模组(Compact camera module)。在拍照及拍影片时，所述装置拍出来的照片及影片很可能因为外来振动而出现模糊或晃动，影响照片及影片质素。当振动比较激烈，或在低光情况下，这问题会更加严重。
为了解决上述问题，市场上已经出现很多不同的防抖技术。现有主流技术通过读取振动传感器(例如陀螺仪及加速传感器)，计算振动波形及所需的补偿角度，通过电子﹑光学﹑或机械方法补偿因振动造成的图像模糊及晃动，达致改进图像质素的效果。
其中，平移传感器防抖(Sensor-Shift Stabilizer,SSS)是通过机械方法，利用致动器移动图像传感器，达致光学部件和图像传感器之间出现相对运动，抵消因振动造成的影像晃动。SSS在防抖过程中不需要移动较重的镜片或镜头，所以在高频防抖效果及功耗方面有较大优势。
传统SSS主要缺点(参考专利：CN102749697B、CN110892704B及US8208031B2)需要多自由度的传感器电路板连接不动及可动部分，所述的多自由度的传感器电路板需要多重折迭工艺或非传统及复杂的弹性电路板制作工艺，电路连接连接图像传感器及达致闭环防抖控制效果，导致较高生产成本及难度、较低良率、以及较大的相机模组体积。
发明内容
本发明的目的是：提供一种弹性电路板，使第一板体具有多轴自由度，且连接方式简单可靠，节省占用的空间，降低了加工难度和加工成本。
为了实现上述目的，本发明提供了一种弹性电路板，包括：
第一板体；
至少一个具有弹性的第一连接部，其一侧朝向所述第一板体的端面的外侧延伸，所述第一连接部的一端连接所述第一板体；以及
至少一个第二板体，其连接于所述第一连接部远离所述第一板体的一端；
其中，所述第一连接部包括相互连接的第一连接臂和第二连接臂，所述第一连接臂的一端连接所述第一板体，所述第二连接臂的一端连接所述第二板体，所述第一连接臂所在平面为第一平面，所述第二连接臂所在平面为第二平面，所述第一平面与所述第二平面之间的夹角为70-110°，所述第一平面和第二平面与所述第一板体表面之间的夹角为70-110°，所述第一板体通过所述第一连接部相对所述第二板体至少两轴方向的移动。
本发明实施例一种弹性电路板与现有技术相比，其有益效果在于：具有弹性的第一连接部连接第一板体和第二板体，使第一连接部在第一板体所在平面内具有自由度，因此可以活动的第一板体也随之具有在第一板体所在平面内平移的自由度；第一连接部向第一板体的表面的外侧延伸，使第一连接部具有可以在第一板体所在平面内旋转的足够的自由度，可以活动的第一板体也随之具有可以旋转的自由度。通过第一连接件，使第一板体具有至少两轴的自由度，且连接方式简单可靠，节省占用的空间，降低了加工难度和加工成本。
本发明实施例的弹性电路板，所述第一连接臂和所述第二连接臂的长度和厚度的比例均大于10。
本发明实施例的弹性电路板，所述第一连接臂和第二连接臂之间 通过弯折部连接，所述弯折部设置为U型且开口朝向所述第一板体。
本发明实施例的弹性电路板，所述第一板体上设置有图像传感器，所述图像传感器用于将接收的图像信号通过第一板体传递至第二板体。
本发明实施例的弹性电路板，所述第一连接臂及第二连接臂的长度均大于所述图像传感器的侧边的长度。
本发明实施例的弹性电路板，所述第一板体上设置有至少一个第二连接部，所述第二连接部连接所述第一连接臂，所述第二板体上设置有第三连接部，所述第三连接部连接所述第二连接臂。
本发明实施例的弹性电路板，所述第一板体上连接有多个所述第一连接部，每个所述第一连接部的一端均连接所述第二连接部。
本发明实施例的弹性电路板，还包括多个所述第二板体，所述第一板体上设有多个所述第二连接部，多个所述第二连接部分别连接有所述第一连接部，多个所述第二板体分别与多个所述第一连接部连接。
本发明实施例的弹性电路板，所述第一连接部包括至少两层层叠设置的板体，所述板体之间设置有间隙。
本发明实施例的弹性电路板，所述第一连接臂和第二连接臂包括至少两层层叠布置的板体，所述板体之间具有间隙。
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。
附图说明
图1是本发明实施例的弹性电路板的结构示意图；
图2是本发明实施例的弹性电路板的俯视示意图；
图3是本发明另一实施例的弹性电路板的俯视示意图；
图4是图2中A的第一连接部的一种实施例的结构示意图；
图5是另一种实施例中第一连接部的局部结构示意图；
图6是本发明实施例的弹性电路板的侧面示意图；
图7是本发明实施例的弹性电路板和防抖驱动模组的分解结构示 意图；
图8是本发明实施例的防抖驱动模具安装于弹性电路板的示意图。
图中，1、第一板体；11、第一顶角；12、第二顶角；13、第三顶角；14、第四顶角；15、第二连接部；16、镜头；17、上壳体；18、下壳体；19、防抖马达；2、第二板体；21、第三连接部；3、第一连接部；301、第三板体；302、第四板体；303、间隙；31、第一连接臂；32、第二连接臂；33、弯折部；4、图像传感器。
具体实施方式
下面详细描述本发明的实施例，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。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右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。
在本发明的描述中，若干的含义是一个或者多个，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，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或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
如图1和图2所示，本发明优选实施例提供了一种弹性电路板，其包括可以活动的第一板体1、第二板体2和具有弹性的第一连接部3， 其中，第二板体2作为固定端，第一板体1上则固定有驱动器，作为活动端，具有弹性的第一连接部3的两端分别连接第一板体1和第二板体2，使第一连接部3与第一板体1连接的一端在第一板体1平面内具有平移及旋转自由度，因此可以活动的第一板体1也随之具有在平面内平移及旋转的自由度，从而实现第一板体1的三轴移动。
如图1和图2所示，在本发明的一些实施例中，弹性电路板还包括至少一个具有弹性的第一连接部3，第一连接部3一端连接第一板体1，第一连接部3朝向第一板体1的表面的外侧延伸，使第一连接部3具有可以在第一板体1所在平面进行旋转的自由度，可以活动的第一板体1也随之具有可以旋转的自由度。
如图1和图2所示，在本发明的一些实施例中，第一连接部3包括相互连接的第一连接臂31和第二连接臂32，第一连接臂31的一端连接第一板体1，第二连接臂32的一端连接第二板体2。
如图1、图2和图6所示，在本发明的一些实施例中，第一连接臂31所在平面为第一平面，第二连接臂32所在平面为第二平面，第一平面和第二平面与第一板体1表面之间的夹角为B，其中，70≤B≤110°，为第一连接部3在第一板体1所在平面内移动留下了足够的空间，为第一连接部3的留下足够的可旋转自由度。优选地，第一连接部3垂直于第一板体1的表面设置。第一连接部3垂直于第一板体1的表面，使第一连接部3相对于第一板体1所在平面的可旋转角度最大化，具有的自由度最高化。
如图1和图2所示，在本发明的一些实施例中，第一平面和第二平面之间的夹角均为C，其中，70≤C≤110°。优选地，第一平面和第二平面之间的夹角C为90°，第一连接臂31位于第一板体1所在平面的X轴方向上，第二连接臂32位于第一板体1所在平面的Y轴方向上，第一连接臂31和第二连接臂32均垂直于第一板体1设置。基于上述方案，第一板体1在其所在平面水平移动时，具有以下情况，当第一板体1在第一板体1所在平面的X轴上移动时，第二连接臂32会弯曲 变形，但是第一连接臂31接近没有出现变形，即第二连接臂32提供了第一板体1向X轴方向移动时所需要的变形；而当第一板体1在Y轴上移动时，第一连接臂31会弯曲变形，但是第二连接臂32接近不会出现变形，即第一连接臂31提供了第一板体1向Y轴移动时所需要的变形；进一步地，当第一板体1在其所在平面内移动且并未沿X轴或Y轴的方向时，第一旋转臂和第二旋转臂均需要提供部分形变以供第一板体1进行水平移动。第一板体1在第一板体1所在平面内旋转，即沿Rz方向翻转时，具有以下情况，当第一板体1沿顺时针方向旋转时，第一连接臂31和第二连接臂32也会随第一板体1沿顺时针方向发生形变，此时第一连接臂31和第二连接臂32提供了第一板体1沿Rz方向的顺时针旋转所需要的变形；当第一板体1沿逆时针方向旋转时，第一连接臂31和第二连接臂32也会随第一板体1沿逆时针方向发生形变，此时第一连接臂31和第二连接臂32提供了第一板体1沿Rz方向的逆时针旋转所需要的变形。
如图1和图2所示，在本发明的一些实施例中，第一连接臂31和第二连接臂32的长度和厚度的比例大于10，提供了足够的位移空间，提高了装置的灵活性，且保证了第一连接臂31和第二连接臂32的弹性，防止第一连接臂31和第二连接臂32在第一板体1平移或翻转时发生破坏。
如图1和图2所示，在本发明的一些实施例中，第一连接臂31和第二连接臂32之间通过弯折部33连接，弯折部33设置为U型且开口朝向第一板体1，弯折部33使第一连接臂31和第二连接臂32垂直连接，可以提供第一连接臂31或者第二连接臂32更大的活动范围，从而更进一步增加第一连接部3的弹性及可靠性，特别是旋转过程的弹性及可靠性，提高防抖补偿角度及减低防抖功耗。
如图7和图8所示，在本发明的一些实施例中，第一板体1上设置有图像传感器4，图像传感器4可随第一板体1的移动而移动，可随第一板体1的旋转而旋转，图像传感器4接收的图像信号，直接传输 至第一板体1，再通过第一连接部3传递至第二板体2。进一步，第一板体1上设置有多个图像传感器4，第一连接臂31及第二连接臂32的长度均大于每个图像传感器4的侧边的长度。
如图7和图8所示，在本发明的一些实施例中，第一板体1上还设置有防抖驱动模组，用于驱动第一板体1平移和旋转。防抖驱动模组包括至少一个防抖马达19、至少一个镜头16、以及至少一个模组外壳；模组外壳包括上壳体17和下壳体18，上壳体17和下壳体18分别设置于第一板体4的上方和下方，且上壳体17和下壳体18之间形成有容纳腔，以将第一板体1、图像传感器4、镜头16和防抖马达19容纳于其中。具体地，第一板体1和防抖模组中的防抖马达19作机械连接；第二板体2和模组外壳作机械连接；每个防抖马达19能驱动至少一个第一板体1作多轴平移运动；至少一个下壳体18和至少一个防抖马达19作机械连接；通过控制每个防抖马达19，可以改变第一板体1至少一轴的防抖力及一轴翻滚的防抖力矩，达致至少一个图像传感器4可进行至少两轴的防抖运动。
优选地，至少一个防抖马达19由音圈马达组成，通过控制电磁力驱动第一板体1及图像传感器4平移。
优选地，至少一个防抖马达19由记忆金属马达组成，通过控制记忆金属温度驱动第一板体1及图像传感器4平移。
优选地，至少一个防抖马达19能驱动镜头16沿镜头16的光轴方向移动，达致自动对焦的效果。
如图1和图2所示，在本发明的一些实施例中，第一板体1为矩形结构，其沿逆时针方向依次包括第一顶角11、第二顶角12、第三顶角13和第四顶角14。矩形结构更贴合现有的相机模组结构，可以更充分利用相机模组的有限空间。
相对于某些现有防抖技术(参考专利CN102749697B及US8208031B2)中多重折迭的弹性电路板，本发明只需要至少一个在防抖运动过程中出现弹性变形的弯折部33，以及第一板体及第一连接臂 31之间在防抖运动过程中不变形的至少一个弯折。因此，本发明的结构及生产过程比较简单，有利于降低生产成本及难度。如图1和图2所示，在本发明的一些实施例中，第一板体1上设置有至少一个第二连接部15，第二连接部15连接第一连接臂31，第二板体2上设置有第三连接部21，第三连接部21连接第二连接臂32。第二连接部15设置于第一板体1的第一顶角11处，第三连接部21与第一板体1的第三顶角13对应设置。具体的，将第二连接部15和第三连接部21设置于第一板体1的对角处，在有限的空间内两者的距离最大化，给予了第一连接件最大的活动范围，保证了弹性连接件的可靠性，且也保证了第一板体1具有高的活动自由度，有利于配合相机模组的多轴自由度。
如图1和图2所示，进一步地，弯折部33与第一板体1的第二顶角12对应设置；第一连接臂31与第二连接臂32分别与第一板体1的侧边平行。具体的，通过将弯折部33设置在第二顶角12处，可以使得第一连接臂31和第二连接臂32的长度接近，且第一连接臂31与第二连接臂32均与第一板体1的侧边平行，即保证了整个电路板结构位于同一水平面上，且可以保证第一连接臂31和第二连接臂32的活动幅度统一，方便相机模组在防抖时采用统一的控制方法进行控制，降低成本。
如图3所示，在本发明的另一些实施例中，第一板体1上连接有多个第一连接部3，每个第一连接部3的一端均连接第二连接部15。具体地，本发明实施例设置两个第一连接部3，两个第一连接部3的弯折部33分别与第一板体1的第二顶角12和第四顶角14对应设置；每个第一连接臂31与第二连接臂32均与第一板体1的侧边平行。使用多个第一连接部3可提高弹性电路板整体的可靠性和抗跌性，且更进一步利用了摄影模块内有限的空间。
如图3所示，在本发明的又一些实施例中，还包括多个第二板体2，第一板体1上设有多个第二连接部15，多个第二连接部15分别连接有 第一连接部3，多个第二板体2分别与多个第一连接部3连接。具体地，如图4所示，第二板体2设置有两个，每个第二板体2上的第三连接部21均连接有一个第一连接部3。进一步地，第一板体1上设置有多个第二连接部15，每个第二连接部15均对应连接有一个第一连接部3，可以保证多个第一连接部3拥有足够的活动自由度，且两者的活动自由度相同，方便相机模组在防抖时采用统一的控制方法进行控制，降低成本，也降低了弹簧系数及防抖功耗。两个第二连接部15分别设置于第一板体1的第二顶角12和第四顶角14处，两个第一连接部3的弯折部33分别与第一板体1的第一顶角11和第三顶角13对应设置，每个第一连接部3的第一连接臂31与第二连接臂32均与第一板体1的侧边平行。这一设置满足不同相机模组的结构或者像素需求，需要采用两块第二板体2进行控制或者传输的情况，使弹性电路板可以充分利用空间，且保证其的可靠性和抗跌性，
如图4所示，在本发明的一些实施例中，第一连接部3包括至少两层层叠设置的板体，板体之间设置有间隙303。具体地，第一连接部3包括靠近第一板体1设置的第三板体301和远离第一板体1设置的第四板体302，第三板体301和第四板体302之间具有间隙303；分层设计能减低弹性电路板弹性部份的弹簧系数，减低防抖功耗及提升防抖效果。
如图5所示，在本发明的一些实施例中，第一连接臂31及第二连接臂32均包括至少两层层叠设置的板体，弯折部33为一块整体板体。由于弯折部33则没有采用分层设计，所以较适合采用冲压方式永久折弯弯折部33，方便生产。
相对于某些现有防抖技术(参考专利CN110892704B)中采用非传统及复杂工艺制作的弹性电路板，本发明可以采用传统及比较简单工艺制作的弹性电路板，有利于降低制作成本及提高产能。
本发明的工作过程为：具有弹性的第一连接部3连接第一板体1和第二板体2，使第一连接部3在第一板体1所在平面内具有自由度，因此 可以活动的第一板体1也随之具有在第一板体1所在平面内平移的自由度；第一连接部3向第一板体1的端面的外侧延伸，使第一连接部3具有可以在第一板体所在平面内旋转的足够的自由度，可以活动的第一板体1也随之具有可以旋转的自由度。
综上，本发明实施例提供一种弹性电路板，其通过向第一板体1的表面的外侧延伸的第一连接件，使第一板体1具有多轴自由度，且连接方式简单可靠，节省占用的空间，降低了加工难度和加工成本。
以上仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (10)

  1. 一种弹性电路板，其特征在于，包括：
    第一板体；
    至少一个具有弹性的第一连接部，其一侧朝向所述第一板体的表面的外侧延伸，所述第一连接部的一端连接所述第一板体；以及
    至少一个第二板体，其连接于所述第一连接部远离所述第一板体的一端；
    其中，所述第一连接部包括相互连接的第一连接臂和第二连接臂，所述第一连接臂的一端连接所述第一板体，所述第二连接臂的一端连接所述第二板体，所述第一连接臂所在平面为第一平面，所述第二连接臂所在平面为第二平面，所述第一平面与所述第二平面之间的夹角为70-110°，所述第一平面和第二平面与所述第一板体表面之间的夹角为70-110°，所述第一板体通过所述第一连接部相对所述第二板体至少两轴的方向移动。
  2. 根据权利要求1所述的弹性电路板，其特征在于：所述第一连接臂和所述第二连接臂的长度和厚度的比例均大于10。
  3. 根据权利要求1所述的弹性电路板，其特征在于：所述第一连接臂和第二连接臂之间通过弯折部连接，所述弯折部设置为U型且开口朝向所述第一板体。
  4. 根据权利要求1所述的弹性电路板，其特征在于：所述第一板体上设置有图像传感器，所述图像传感器用于将接收的图像信号通过第一板体传递至第二板体。
  5. 根据权利要求4所述的弹性电路板，其特征在于：所述第一连接臂和所述第二连接臂的长度均大于所述图像传感器的侧边的长度。
  6. 根据权利要求1所述的弹性电路板，其特征在于：所述第一板体上设置有至少一个第二连接部，所述第二连接部连接所述第一连接臂，所述第二板体上设置有第三连接部，所述第三连接部连接所述第 二连接臂。
  7. 根据权利要求6所述的弹性电路板，其特征在于：所述第一板体上连接有多个所述第一连接部，每个所述第一连接部的一端均连接所述第二连接部。
  8. 根据权利要求7所述的弹性电路板，其特征在于：还包括多个所述第二板体，所述第一板体上设有多个所述第二连接部，多个所述第二连接部分别连接有所述第一连接部，多个所述第二板体分别与多个所述第一连接部连接。
  9. 根据权利要求1所述的弹性电路板，其特征在于：所述第一连接部包括至少两层层叠布置的板体，所述板体之间具有间隙。
  10. 根据权利要求3所述的弹性电路板，其特征在于：所述第一连接臂和第二连接臂包括至少两层层叠布置的板体，所述板体之间具有间隙。
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