WO2021146880A1 - 防抖机构、摄像模组及电子设备 - Google Patents

防抖机构、摄像模组及电子设备 Download PDF

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Publication number
WO2021146880A1
WO2021146880A1 PCT/CN2020/073366 CN2020073366W WO2021146880A1 WO 2021146880 A1 WO2021146880 A1 WO 2021146880A1 CN 2020073366 W CN2020073366 W CN 2020073366W WO 2021146880 A1 WO2021146880 A1 WO 2021146880A1
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WIPO (PCT)
Prior art keywords
magnetic body
camera
magnetic
elastic
frame
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PCT/CN2020/073366
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English (en)
French (fr)
Inventor
安在煜
瞿佳佳
李勇
张兵
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南昌欧菲光电技术有限公司
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Application filed by 南昌欧菲光电技术有限公司 filed Critical 南昌欧菲光电技术有限公司
Priority to PCT/CN2020/073366 priority Critical patent/WO2021146880A1/zh
Publication of WO2021146880A1 publication Critical patent/WO2021146880A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • This application relates to the technical field of camera devices, in particular to an anti-shake mechanism, camera module and electronic equipment.
  • the shooting device In order to obtain a better picture quality, the shooting device generally has an anti-shake mechanism, which is used to solve the impact on the picture quality caused by the shaking of the user's hand when shooting.
  • the existing anti-shake mechanism has a complicated structure and takes up a large space.
  • the present application provides an anti-shake mechanism, camera module, and electronic equipment, which have a simple structure and a small footprint.
  • an anti-shake mechanism including:
  • the elastic support is connected to the fixed support, the camera of the camera module is fixed to the elastic support, and the elastic support is configured to have a stroke that is elastically shaken relative to the fixed support;
  • the electromagnetic driving device includes a first magnetic body and a second magnetic body, the first magnetic body is connected with the elastic support, and the second magnetic body is connected with the fixed support and is magnetically coupled with the first magnetic body;
  • the electromagnetic driving device is configured to receive the electrical signal, the magnetic force between the first magnetic body and the second magnetic body can be changed according to the electrical signal, and then drive the elastic support to shake with respect to the fixed support, so as to compensate for the fixed support on the elastic support.
  • the first magnetic body is connected to the elastic bracket, and the second magnetic body is connected to the fixed bracket. Therefore, when the camera shakes during shooting, it can pass through The magnitude of the magnetic force between the first magnetic body and the second magnetic body is changed so that the elastic bracket is shaken in the opposite direction relative to the fixed, so as to compensate for the user's shooting shake, thereby achieving an anti-shake effect.
  • the structure of the anti-shake mechanism in this embodiment is simple, and since the movement mode of the camera is swing, its shaking range is small, so it occupies a small space.
  • the elastic support includes:
  • the positioning frame body is used to fix the camera, and the first magnetic body is connected to the positioning frame body;
  • the elastic frame body is connected with the positioning frame body and is configured to generate elastic deformation when the elastic frame shakes relative to the fixed frame.
  • One end of the elastic frame body is connected with the positioning frame body, and the other end is connected with the fixed frame.
  • the elastic frame body includes:
  • the first connecting portion has elasticity, and the first connecting portion connects the positioning frame body and the intermediate frame respectively;
  • the second connecting portion has elasticity, and the second connecting portion is respectively connected with the middle frame and the fixing bracket.
  • the presence of the intermediate frame can make the position of the elastic component connected with the fixed bracket and the position of the elastic component connected with the positioning frame body adjustable, which reduces the influence of the position arrangement of the fixed bracket on the position of the positioning frame body.
  • one common end of the two first connecting parts is both connected to the intermediate frame, and the other common end is both connected to the positioning frame body, and the centers of the two first connecting parts are connected to each other.
  • the line is the first axis of rotation.
  • One common end of the two second connecting parts is connected to the intermediate frame, and the other common end is connected to the positioning frame body, and the connection between the centers of the two second connecting parts is the second rotation
  • the middle frame rotates about the second axis of rotation relative to the fixed bracket
  • the two second connecting parts are elastically deformed; the structure of the two second connecting parts makes the positioning frame body and the middle The relative movement between the frames is controllable.
  • the first rotation axis and the second rotation axis are arranged to cross each other, so that the movable range of the fixed frame body is larger.
  • the first rotation axis and the second rotation axis form an angle of ninety degrees.
  • the force of the positioning bracket from all directions is more balanced, and there will be no elastic restoring force when the positioning frame shakes in a certain direction.
  • the elastic restoring force it receives is small.
  • the first rotation axis is configured to be perpendicular to the optical path axis of the camera when the camera is fixed on the fixed bracket;
  • the second rotation axis is configured to be perpendicular to the optical path axis when the camera is fixed on the fixed bracket. This makes it easier for the camera to shake effectively after being fixed on the positioning frame, so that the anti-shake mechanism has a better anti-shake effect.
  • the middle frame includes two oppositely arranged first rods and two oppositely arranged second rods, the two first rods and the two second rods in sequence. Connected to form the middle frame;
  • the two first connecting parts are connected to the two first rods in a one-to-one correspondence, and the two second connecting parts are correspondingly connected to the two second rods.
  • the frame structure composed of four rods is lighter and the structure is more simplified.
  • the fixing bracket includes:
  • the extension part is connected to the fixing part and extends in a direction close to the elastic frame body to be spaced apart from the side of the elastic frame body;
  • the second magnetic body is connected to the extension part and is spaced apart from the first magnetic body.
  • the structure of the extension part can more facilitate the arrangement of the second magnetic body.
  • the elastic bracket has an installation position for installing the camera, and the installation position is configured such that after the camera is installed, the mutual magnetic direction of the first magnetic body and the second magnetic body is perpendicular to the optical path axis of the camera. This makes it easier for the camera to shake effectively after being fixed on the positioning frame, so that the anti-shake mechanism has a better anti-shake effect.
  • the magnetic drive device includes four first magnetic bodies and four second magnetic bodies.
  • Each first magnetic body is arranged around the elastic frame in a one-to-one correspondence, and each second magnetic body corresponds to each other one-to-one.
  • the first magnetic bodies are arranged at intervals. In this way, all parts of the camera are uniformly stressed, which is convenient for driving the camera.
  • the positioning frame body includes four fixing plates that are respectively arranged parallel to the optical path axis, and the four fixing plates are connected to each other to form a rectangular frame, and the rectangular frame is used to fix the camera therein;
  • Each fixing plate is provided with a relief hole, and each first magnetic body is arranged in each relief hole in a one-to-one correspondence. In this way, the space occupied by the first magnetic body can be reduced, and the volume of the anti-shake mechanism can be reduced.
  • the first magnetic body is a permanent magnet
  • the second magnetic body is an electromagnet
  • the second magnetic body is configured to generate a magnetic change with the first magnetic body according to an electrical signal. This can facilitate the transmission of electrical signals to the electromagnetic drive device.
  • the second aspect of the application also provides a camera module, including:
  • the anti-shake mechanism in the above solution has a simple structure and a small space occupation.
  • the third aspect of the present application also provides an electronic device including the above-mentioned camera module.
  • the anti-shake mechanism in the above solution has a simple structure and a small space occupation.
  • the anti-shake mechanism due to the magnetic coupling between the first magnetic body and the second magnetic body, the first magnetic body is connected to the elastic bracket, and the second magnetic body is connected to the fixed bracket, so when the camera shakes during shooting At this time, the magnitude of the magnetic force between the first magnetic body and the second magnetic body can be changed to make the elastic support shake in the opposite direction relative to the fixed, so as to compensate for the user's shooting shake, thereby realizing the anti-shake effect.
  • the anti-shake mechanism of the anti-shake mechanism in this embodiment has a simple structure, and since the movement mode of the camera is swing, its shaking range is small, so it occupies a small space.
  • FIG. 1 is an exploded schematic diagram of a full cross-sectional view of a camera module in an embodiment of the application
  • FIG. 2 is a first exploded schematic diagram of a camera module in an embodiment of this application
  • Figure 3 is a full cross-sectional view of a camera module in an embodiment of the application.
  • FIG. 4 is a full cross-sectional view of a camera module in another embodiment of the application.
  • FIG. 5 is a second exploded schematic diagram of the camera module in an embodiment of this application.
  • Fig. 6 is a first exploded schematic view of the fixed bracket and the elastic bracket in an embodiment of the application
  • FIG. 7 is a second exploded schematic diagram of the fixed bracket and the elastic bracket in an embodiment of this application.
  • FIG. 8 is a three-dimensional schematic diagram of a fixed bracket and an elastic bracket in an embodiment of the application after being combined.
  • this embodiment provides an anti-shake mechanism 100 for fixing the camera module 10.
  • the anti-shake mechanism 100 includes a fixed bracket 120, an elastic bracket 110 and an electromagnetic drive device.
  • the fixing bracket 120 of the anti-shake mechanism 100 is used for fixed connection with the electronic device having the camera module 10.
  • the fixing bracket 120 may be connected to a structure such as a housing or a circuit board of the mobile phone.
  • the elastic bracket 110 is fixedly connected to the fixed bracket 120.
  • the camera 200 of the camera module 10 is fixed to the elastic support 110 and can move with the movement of the elastic support 110.
  • the elastic support 110 is configured to have a stroke of elastic shaking relative to the fixed support 120. In other words, the elastic support 110 can perform resilient and resilient swing relative to the fixed support 120.
  • the camera 200 is driven to be fixed relative to the fixed support 120.
  • the bracket 120 swings.
  • the electromagnetic driving device includes a first magnetic body 131 and a second magnetic body 132.
  • the first magnetic body 131 is connected to the elastic support 110
  • the second magnetic body 132 is connected to the fixed support 120 and is magnetically coupled to the first magnetic body 131, namely the second
  • the magnetic body 132 and the first magnetic body 131 have an interaction force, and the magnitude of the interaction force is determined by the magnitude of the magnetic force between the two.
  • the electromagnetic driving device is configured to receive the electric signal, and the magnetic force between the first magnetic body 131 and the second magnetic body 132 can be changed according to the electric signal, and then the elastic bracket 110 is driven to shake relative to the fixed bracket 120 to compensate for fixing to the elastic bracket Shooting shake of the camera 200 on the 110 (shake of the camera 200 caused by the shaking of the user's hand when shooting). That is, the magnetic force between the first magnetic body 131 and the second magnetic body 132 is variable, and the change trend is related to the electrical signal input by the electromagnetic drive device.
  • the magnetic force between the first magnetic body 131 and the second magnetic body 132 changes, the interaction force between the two changes, so that there is a force between the elastic support 110 and the fixed support 120.
  • the effect of the above force is The elastic support 110 is shaken relative to the fixed support 120, and the shaking tendency is related to the magnitude and direction of the force applied to the two.
  • the first magnetic body 131 and the second magnetic body 132 in the electromagnetic drive device can be one of the magnetic body being an electromagnet and the other magnetic body being a permanent magnet.
  • the electromagnet receives the electric signal to make the magnetic force between the permanent magnet and the permanent magnet. A change occurs; it is also possible that the two magnetic bodies are electromagnets, and both of the magnetic bodies can receive electrical signals so that the magnetic force between the first magnetic body 131 and the second magnetic body 132 is changed.
  • the first magnetic body 131 may be an electromagnet
  • the second magnetic body 132 may be an electromagnet.
  • the first magnetic body 131 connected to the elastic support 110 is a permanent magnet
  • the second magnetic body 132 connected to the fixed support 120 is an electromagnet. Since the second electromagnet is connected to the fixed bracket 120 and its relative position remains unchanged, it is easier to receive current carrying electrical signals.
  • the hand will shake, which will drive the electronic device and the camera 200 therein to shake.
  • the mobile phone can obtain the shake signal of the electronic device and process the shake signal. Generates electrical signals for controlling the electromagnetic drive device.
  • the electromagnetic drive device After the electromagnetic drive device receives the electrical signal, the magnetic force between the first magnetic body 131 and the second magnetic body 132 is changed, thereby generating an interaction force between the elastic support 110 and the fixed support 120, and the interaction force makes the elastic support 110 drive
  • the camera 200 shakes with respect to the fixed bracket 120, and the shaking direction of the elastic bracket 110 is opposite to the direction of the user's hand shaking when shooting, so that the camera 200 is as still as possible in absolute space (the space with the earth as the reference system) to achieve The ultimate anti-shake function.
  • the anti-shake mechanism 100 includes an elastic support 110, a fixed support 120, and an electromagnetic drive device.
  • the elastic support 110 and the fixed support 120 are compactly connected, have a simple structure, and the camera 200 in the anti-shake mechanism 100 in this embodiment shakes At this time, since the elastic support 110 is directly connected to the fixed support 120, the elastic support 110 swings relative to the fixed support 120 (moves in a conical space) instead of moving in a rectangular parallelepiped space, and occupies a small space.
  • the elastic support 110 may have elasticity as a whole, or only some parts may have elasticity.
  • the elastic support 110 includes a positioning frame body 111 and an elastic frame body 112.
  • the positioning frame body 111 is used to fix the camera 200, and the first magnetic body 131 is connected to the positioning frame body 111.
  • One end of the elastic frame body 112 is connected to the positioning frame body 111, and the other end is connected to the fixing bracket 120.
  • the elastic frame body 112 is configured to be elastically deformed when the elastic frame 110 shakes relative to the fixed frame 120. That is, only the elastic frame 112 of the elastic bracket 110 has elasticity, and the part of the positioning frame 111 does not.
  • the positioning frame 111 can fix the camera 200 on the one hand, and is also connected with the first magnetic body 131 on the other hand to receive the first magnetic body.
  • the force given by the magnetic body 131 in turn drives the camera 200 to shake.
  • the elastic frame body 112 is elastically deformed to generate an elastic force for resetting the positioning frame body 111.
  • the elastic frame body 112 may be any known component capable of generating elastic force.
  • the elastic frame body 112 may include a middle frame 1121, a first The connecting portion 1122 and the second connecting portion 1123.
  • the first connecting portion 1122 is disposed on a side of the middle frame 1121 facing the positioning frame body 111 and extends in a direction close to the positioning frame body 111.
  • the first connecting portion 1122 has elasticity.
  • the material of the first connecting portion 1122 can be silica gel, etc.
  • the number of the first connecting portion 1122 can be arbitrary, and one end of the first connecting portion 1122 is connected to the positioning frame body of the middle frame 1121 One end of the first connecting portion 1122 is connected to the positioning frame 111 on one side.
  • the second connecting portion 1123 is disposed on a side of the middle frame 1121 facing the fixing bracket 120 and extends in a direction close to the fixing bracket 120.
  • the second connecting portion 1123 has elasticity.
  • the material of the second connecting portion 1123 can be silica gel, etc., and the number of the second connecting portions 1123 can be arbitrary.
  • One end of the second connecting portion 1123 is connected to the fixed bracket 120 of the middle frame 1121.
  • One end of the second connecting portion 1123 is connected to the fixing bracket 120 at the other end.
  • the specific structure of the middle frame 1121 is not limited here, and it may be plate-shaped, rod-shaped or block-shaped.
  • the middle frame 1121 may or may not have elasticity.
  • the middle frame 1121 and the elastic frame body 112 may be made of the same material and formed integrally.
  • the fixed frame body shakes the relative movement between the positioning frame body 111 and the middle frame 1121 deforms the first connecting portion 1122 and generates an elastic restoring force.
  • the relative movement between the middle frame 1121 and the fixed frame body causes the first connecting part 1122 to be deformed.
  • the second connecting portion 1123 deforms and generates an elastic restoring force.
  • the presence of the middle frame 1121 can make the position of the elastic member connected to the fixing bracket 120 and the position of the elastic member connected to the positioning frame body 111 adjustable, reducing the influence of the position arrangement of the fixing bracket 120 on the position of the positioning frame body 111.
  • the movable range of the positioning frame body 111 relative to the middle frame 1121 is relatively large.
  • the movement is controllable.
  • the surface of the middle frame 1121 facing the positioning frame body 111 is provided with two first connecting parts 1122, and the ends of the two first connecting parts 1122 facing away from the middle frame 1121 are respectively connected to the positioning frame.
  • the body 111 is connected.
  • the line connecting the centers of the two first connecting portions 1122 is the first rotation axis 1124 (as shown in FIG. 8).
  • the two first connecting portions 1122 on the middle frame 1121 can be respectively connected to two opposite ends of the middle frame 1121.
  • the two first connecting portions 1122 can also be connected to the inside of the middle frame 1121 (that is, the two first connecting portions 1121). None of the connecting portions 1122 are in contact with the edge of the middle frame 1121).
  • the two first connecting portions 1122 are respectively connected to two opposite ends of the middle frame 1121 (that is, the two first connecting portions 1122 are respectively connected to two opposite edges of the middle frame 1121)
  • the two first connecting portions 1122 are connected to two opposite edges of the middle frame 1121.
  • the distance between a connecting portion 1122 is maximized, so that the positioning frame body 111 is easier to rotate relative to the middle frame 1121 about the first rotation axis.
  • the movable range of the middle frame 1121 relative to the fixed bracket 120 is relatively large. Movement is controllable.
  • the surface of the middle frame 1121 facing the fixing bracket 120 is provided with two second connecting portions 1123, and the ends of the two second connecting portions 1123 facing away from the middle frame 1121 are respectively connected to the fixing bracket 120.
  • the line connecting the centers of the two second connecting parts 1123 is the second rotation axis 1125 (as shown in FIG. 8).
  • the two second connecting portions 1123 on the middle frame 1121 may also be connected to two opposite ends of the middle frame 1121 respectively.
  • the two second connecting portions 1123 may also be connected to the inside of the middle frame 1121.
  • the first rotation axis 1124 and the second rotation axis 1125 are arranged relatively crosswise. That is, the two are not parallel. Specifically, the first rotation axis 1124 and the second rotation axis 1125 may have an included angle of ninety degrees. In this way, when the first connecting portion 1122 and the second connecting portion 1123 are deformed, the force of the positioning bracket from all directions is more balanced, and there will be no large elastic restoring force when the positioning frame 111 shakes in a certain direction. When shaking in a certain direction, the elastic restoring force it receives is small.
  • first rotation axis 1124 and the second rotation axis 1125 are arranged perpendicularly, if the positioning frame body 111 rotates around the first rotation axis 1124, the two first connecting parts 1122 will be elastically deformed, and the two second connecting parts 1123 will be less deformed , And one of the second connecting portions 1123 is compressed, and the other second connecting portion 1123 is pulled. If the positioning frame 111 rotates around the second axis of rotation 1125, the two second connecting parts 1123 will be elastically deformed, the two first connecting parts 1122 will be less deformed, and one of the first connecting parts 1122 will be compressed and the other will be compressed. A connecting portion 1122 is under tension.
  • the elastic bracket 110 has an installation position for installing the camera 200, and the installation position is configured such that the mutual magnetic direction of the first magnetic body 131 and the second magnetic body 132 is perpendicular to the optical path axis of the camera 200 after the camera 200 is installed. That is, the first rotation axis 1124 is configured to be perpendicular to the optical path axis of the camera 200 when the camera 200 is fixed to the fixed bracket 120, and the second rotation axis 1125 is configured to be perpendicular to the optical path axis when the camera 200 is fixed to the fixed bracket 120. In this way, the camera 200 is more likely to produce effective shaking after being fixed on the positioning frame 111, so that the anti-shake mechanism 100 has a better anti-shake effect.
  • the middle frame 1121 may include two oppositely arranged first rods 11211 and two oppositely arranged second rods.
  • the member 11212, the two first rod members 11211 and the two second rod members 11212 are correspondingly connected to form a rectangular middle frame 1121.
  • the two first connecting portions 1122 are connected to the two first rods 11211 in a one-to-one correspondence, and the two second connecting portions 1123 are correspondingly connected to the two second rods 11212.
  • This structure of the middle frame 1121 can further simplify the overall structure of the anti-shake mechanism 100.
  • the first rotation axis 1124 may be perpendicular to the first rod 11211, that is, the line connecting the centers of the two first connecting portions 1122 is perpendicular to the first rod 11211.
  • the second rotation axis 1125 may also be perpendicular to the second rod 11212, that is, the line connecting the centers of the two second connecting portions 1123.
  • the fixing bracket 120 may include a fixing part 121 and an extension part 122.
  • the extension portion 122 is connected to the fixing portion 121 and extends in a direction close to the elastic frame body 112 to be spaced apart from the side of the elastic frame body 112.
  • the second magnetic body 132 is connected to the extension portion 122 and is spaced apart from the first magnetic body 131.
  • the structure of the extension 122 makes it easier to arrange the first magnetic body 131 and the second magnetic body 132.
  • the elastic bracket 110 has an installation position for installing the camera 200, and the installation position is configured such that the mutual magnetic direction of the first magnetic body 131 and the second magnetic body 132 is perpendicular to the optical path axis of the camera 200 after the camera 200 is installed.
  • the number of the first magnetic body 131 and the second magnetic body 132 can be determined according to the required driving direction and strength.
  • the magnetic drive device may include four first magnetic bodies 131 and four second magnetic bodies 132, and each first magnetic body 131 is arranged around the elastic frame body 112 in a one-to-one correspondence, specifically, four The first magnetic bodies 131 are arranged in the four directions of the positioning frame body 111 in a one-to-one correspondence.
  • Each second magnetic body 132 is arranged in a one-to-one correspondence with each first magnetic body 131. Specifically, the four second magnetic bodies 132 are all arranged on the surface of the extension portion 122 facing the first magnetic body 131.
  • the shape of the positioning frame body 111 can be determined according to actual needs.
  • the positioning frame body 111 in this embodiment includes four fixing plates 1111 that are respectively arranged parallel to the optical path axis, and the four fixing plates 1111 are connected to each other to form a rectangular shape.
  • the frame, the rectangular frame is used to fix the camera 200 in it.
  • Each fixing plate 1111 has a relief hole 1112 respectively, and each first magnetic body 131 is disposed in each relief hole 1112 in a one-to-one correspondence and is fixedly connected to the peripheral wall of each relief hole 1112.
  • the extension 122 may also include four plate bodies, and each plate body is corresponding to a fixed plate 1111 spaced apart, and each plate body faces the fixed plate 1111.
  • a second magnetic body 132 can be arranged on each surface.
  • the second aspect of the present application also provides a camera module 10, which includes the anti-shake mechanism 100 in any of the above-mentioned embodiments, and further includes a camera 200 provided on the anti-shake mechanism 100.
  • the third aspect of the present application also provides an electronic device, which includes the camera module 10 in any of the foregoing implementations.
  • the electronic device can be any device with a camera function, for example, the electronic device can be a mobile phone, a tablet, a smart watch, a camera, etc.

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Abstract

本申请公开了一种防抖机构、摄像头模组及电子设备，包括：固定支架；弹性支架，摄像模组的摄像头固定于弹性支架，弹性支架配置成具有相对于固定支架进抖动的行程；电磁驱动装置，包括第一磁力体以及第二磁力体，第一磁力体与弹性支架连接，第二磁力体与固定支架连接且与第一磁力体磁力耦合；其中，电磁驱动装置配置成接收电信号后，可使第一磁力体以及第二磁力体之间磁力根据电信号变化，进而驱动弹性支架相对于固定支架进行抖动，以补偿固定于弹性支架上的摄像头的拍摄抖动。本实施例中的防抖机构结构简单，且由于摄像头的运动方式为摆动，其抖动范围小，故占用空间也较小。

Description

防抖机构、摄像模组及电子设备 技术领域
本申请涉及摄像装置的技术领域，尤其涉及一种防抖机构、摄像模组及电子设备。
背景技术
为了得到更佳的画质，拍摄装置一般具有防抖机构，防抖机构用于解决由于用户拍摄时手部抖动而带来的对画质的影响。现有的防抖机构结构复杂，占用空间大。
发明内容
本申请提供一种防抖机构、摄像模组及电子设备，其结构简单，且占用空间小。
根据本申请的一个方面，提供了一种防抖机构，包括：
固定支架；
弹性支架，与固定支架连接，摄像模组的摄像头固定于弹性支架，弹性支架配置成具有相对于固定支架进行弹性抖动的行程；
电磁驱动装置，包括第一磁力体以及第二磁力体，第一磁力体与弹性支架连接，第二磁力体与固定支架连接且与第一磁力体磁力耦合；
其中，电磁驱动装置配置成接收电信号后，可使第一磁力体以及第二磁力体之间磁力根据电信号变化，进而驱动弹性支架相对于固定支架进行抖动，以补偿固定于弹性支架上的摄像头的拍摄抖动。
上述方案中，由于第一磁力体与第二磁力体之间的磁力耦合，第一磁力体与弹性支架连接，第二磁力体与固定支架连接，故当摄像头拍摄过程中产生抖动时，可以通过改变第一磁力体与第二磁力体之间的磁力大小从而让弹性支架相对于固定之间进行反向抖动，以补偿用户的拍摄抖动，从而实现防抖效果。本实施例中的防抖机构结构简单，且由于摄像头的运动方式为摆动，其抖动范围小，故占用空间也较小。
根据一些实施例，弹性支架包括：
定位架体，用于固定摄像头，第一磁力体连接于定位架体；
弹性架体，与定位架体连接，配置成在弹性支架相对于固定支架抖动时产生弹性变形，弹性架体的一端与定位架体连接，另一端与固定支架连接。
上述方案中，仅让弹性架体产生弹性力可以使得对于摄像头的固定更加稳固。
根据一些实施例，所述弹性架体包括：
中间框；
第一连接部，具有弹性，所述第一连接部分别连接所述定位架体和所述中间框；
第二连接部，具有弹性，所述第二连接部分别连接所述中间框和固定支架。
中间框的存在可以使与固定支架连接的弹性部件的位置和与定位架体连接的弹性部件的位置能够任意调整，降低了固定支架的位置布置对定位架体的位置影响。
根据一些实施例，两个所述第一连接部的一个共同端部均连接所述中间框、另一个共同端部均连接所述定位架体，两个所述第一连接部的中心的连线为第一转动轴线，当所述中间框相对于所述定位架体而绕所述第一转动轴线转动时，两个所述第一连接部产生弹性变形；两个第一连接部的结构使得定位架体与中 间框之间的相对运动可控。
两个所述第二连接部的一个共同端部均连接所述中间框、另一个共同端部均连接所述定位架体，两个所述第二连接部的中心的连线为第二转动轴线，当所述中间框相对于所述固定支架而绕所述第二转动轴线转动时，两个所述第二连接部产生弹性变形；两个第二连接部的结构使得定位架体与中间框之间的相对运动可控。
所述第一转动轴线与所述第二转动轴线较交叉设置，使得固定架体的活动范围更大。
根据一些实施例，第一转动轴线与第二转动轴线呈九十度夹角。使得第一连接部以及第二连接部产生变形时定位支架从各个方向上的受力较为均衡，不会出现定位架体朝某个方向抖动时其受到的弹性恢复力很大，而朝某个方向抖动时其受到的弹性恢复力很小的情况产生。
根据一些实施例，第一转动轴线配置成当摄像头固定于固定支架上后与摄像头的光路轴线垂直；
第二转动轴线配置成当摄像头固定于固定支架上后与光路轴线垂直。这样使得摄像头固定于定位架体上后更易产生有效抖动，从而让防抖机构的防抖效果更好。
根据一些实施例，所述中间框包括两个相对设置的第一杆件以及两个相对设置的第二杆件，两个所述第一杆件以及两个所述第二杆件依序首尾相连形成所述中间框；
两个所述第一连接部一一对应连接于两个所述第一杆件，两个所述第二连接部对应连接于两个所述第二杆件。相对于呈板状的中间框的结构而言，由四个杆件构成的框架结构质量更轻，结构更加简化。
根据一些实施例，固定支架包括：
固定部；
延伸部，与固定部连接，且朝靠近弹性架体的方向延伸至与弹性架体的侧边间隔设置；
其中，第二磁力体与延伸部连接并与第一磁力体间隔设置。
上述方案中，延伸部的结构能够更加方便第二磁力体的布置。
根据一些实施例，弹性支架具有安装摄像头的安装位置，安装位置配置成当摄像头安装后，使第一磁力体与第二磁力体的相互磁力方向与摄像头的光路轴线垂直。这样使得摄像头固定于定位架体上后更易产生有效抖动，从而让防抖机构的防抖效果更好。
根据一些实施例，磁力驱动装置包括四个第一磁力体以及四个第二磁力体，各第一磁力体分别一一对应布置于弹性架体的四周，各第二磁力体分别一一对应与各第一磁力体间隔设置。这样使得摄像头的各处受力均匀，便于对摄像头的驱动。
根据一些实施例，定位架体包括四块均分别平行于光路轴线设置的固定板，四块固定板相互连接形成呈矩形框架，矩形框架用于使摄像头固定于其内；
每个固定板均分别具有一个让位孔，各第一磁力体一一对应设置于各让位孔。这样能够减少第一磁力体的占用空间，减小防抖机构的体积。
根据一些实施例，第一磁力体为永磁体，第二磁力体为电磁体，第二磁力体配置成根据电信号而与第一磁力体之间产生磁力变化。这样能够方便将电信号传导至电磁驱动装置。
本申请的第二方面还提供了一种摄像模组，包括：
上述任一项的防抖机构；
摄像头。
上述方案中的防抖机构结构简单，占用空间小。
本申请的第三方面还提供了一种电子设备，包括上述的摄像模组。上述方案中的防抖机构结构简单，占用空间小。
本申请提供的防抖机构，由于第一磁力体与第二磁力体之间的磁力耦合，第一磁力体与弹性支架连接，第二磁力体与固定支架连接，故当摄像头拍摄过程中产生抖动时，可以通过改变第一磁力体与第二磁力体之间的磁力大小从而让弹性支架相对于固定之间进行反向抖动，以补偿用户的拍摄抖动，从而实现防抖效果。本实施例中的防抖机构的防抖机构结构简单，且由于摄像头的运动方式为摆动，其抖动范围小，故占用空间也较小。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一种实施例中的摄像模组的全剖视图的爆炸示意图；
图2为本申请一种实施例中的摄像模组的第一爆炸示意图；
图3为本申请一种实施例中的摄像模组的全剖视图；
图4为本申请另一种实施例中的摄像模组的全剖视图；
图5为本申请一种实施例中的摄像模组的第二爆炸示意图；
图6为本申请一种实施例中的固定支架与弹性支架的第一爆炸示意图；
图7为本申请一种实施例中的固定支架与弹性支架的第二爆炸示意图；
图8为本申请一种实施例中的固定支架与弹性支架组合后的立体示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
如图1至图7所示，本实施例提供了一种用于固定摄像模组10的防抖机构100，该防抖机构100包括固定支架120、弹性支架110以及电磁驱动装置。
防抖机构100的固定支架120用于与具有摄像模组10的电子设备固定连接。例如，当电子设备为手机时，固定支架120可以连接于手机的壳体或电路板等结构上。
弹性支架110与固定支架120固定连接。摄像模组10的摄像头200固定于弹性支架110，并可随弹性支架110的运动而运动。弹性支架110配置成具有相对于固定支架120进行弹性抖动的行程，换句话说，弹性支架110可以相对于固定支架120进行可恢复性的弹性摆动，弹性支架110摆动时带动摄像头200一起相对于固定支架120摆动。
电磁驱动装置包括第一磁力体131以及第二磁力体132，第一磁力体131与弹性支架110连接，第二磁力体132与固定支架120连接且与第一磁力体131磁力耦合，即第二磁力体132与第一磁力体131之间具有相互作用力，有互作用力的大小由两者之间的磁力大小决定。
电磁驱动装置配置成接收电信号后，可使第一磁力体131以及第二磁力体132之间磁力根据电信号变化，进而驱动弹性支架110相对于固定支架120进行抖动，以补偿固定于弹性支架110上的摄像头200的拍摄抖动(用户拍摄时手部的抖动从而产生的摄像头200的抖动)。即第一磁力体131与第二磁力体132之间的磁力是可变的，且变化趋势与电磁驱动装置输入的电信号有关。当第一磁力体131与第二磁力体132之间的磁力变化时，两者之间的相互作用力变化，从而使得弹性支架110与固定支架120之间存在力的作用，上述力的作 用效果使得弹性支架110相对于固定支架120抖动，且抖动趋势与两者的受力大小以及方向有关。
电磁驱动装置中的第一磁力体131与第二磁力体132，可以其中一个磁力体为电磁体、另一个磁力体为永磁体，电磁体通过接收电信号而使其与永磁体之间的磁力产生变化；也可以两个磁力体均为电磁体，两个磁力体均可接受电信号而使得第一磁力体131与第二磁力体132之间的磁力产生变化。当其中一个磁力体为电磁体、另一个磁力体为永磁体时，可以第一磁力体131为电磁体，也可以第二磁力体132为电磁体。本实施例中，与弹性支架110连接的第一磁力体131为永磁体，与固定支架120连接的第二磁力体132为电磁体。由于第二电磁体连接于固定支架120，其相对位置不变，故更易接收携带电信号的电流。
防抖机构100工作过程中，当用户利用电子设备进行拍照时，手部会产生抖动从而带动电子设备以及其内的摄像头200抖动，此时手机可以获取电子设备的抖动信号，并将抖动信号处理后生成对电磁驱动装置进行控制的电信号。电磁驱动装置接收电信号后使第一磁力体131以及第二磁力体132之间的磁力产生变化，进而使弹性支架110与固定支架120之间产生相互作用力，相互作用力使得弹性支架110带动摄像头200相对于固定支架120抖动，且弹性支架110的抖动方向与用户拍摄时的手部抖动方向相反，使得摄像头200尽可能的在绝对空间(以地球为参考系的空间)内静止，以实现最终的防抖功能。
上述实施例中，防抖机构100包括弹性支架110、固定支架120以及电磁驱动装置，弹性支架110与固定支架120的连接紧凑，结构简单，且本实施例中的防抖机构100中摄像头200抖动时，由于弹性支架110与固定支架120直接连接，故弹性支架110相对于固定支架120摆动(在一个圆锥形的空间内运动)，而不是在长方体空间内运动，占据空间小。
弹性支架110可以整体具有弹性，也可以仅部分部件具有弹性，本实施例中，弹性支架110包括定位架体111以及弹性架体112。定位架体111用于固定摄像头200，第一磁力体131连接于定位架体111。弹性架体112的一端与定位架体111连接，另一端与固定支架120连接。且弹性架体112配置成在弹性支架110相对于固定支架120抖动时产生弹性变形。即弹性支架110仅弹性架体112部分具有弹性，定位架体111部分不具有弹性，定位架体111一方面能够固定摄像头200，另一方面还与第一磁力体131连接，用于接收第一磁力体131给予的作用力，进而带动摄像头200抖动。定位架体111抖动时，弹性架体112产生弹性变形，以用于产生使定位架体111复位的弹性力。
弹性架体112可以为已知任意的能够产生弹性力的部件，本实施例中，为了使弹性架体112以较为简单的结构实现抖动的功能，弹性架体112可以包括中间框1121、第一连接部1122以及第二连接部1123。
第一连接部1122设置于中间框1121的面向定位架体111的一侧，且朝靠近定位架体111的方向延伸。第一连接部1122具有弹性，例如第一连接部1122的材质可以为硅胶等，第一连接部1122的数量可以为任意的，第一连接部1122的一端连接于中间框1121的面向定位架体111的一侧，第一连接部1122的另一端连接于定位架体111。
第二连接部1123设置于中间框1121的面向固定支架120的一侧，且朝靠近固定支架120的方向延伸。第二连接部1123具有弹性，例如第二连接部1123的材质可以为硅胶等，第二连接部1123的数量可以为任意的，第二连接部1123的一端连接于中间框1121的面向固定支架120的一侧，第二连接部1123的另一端连接于固定支架120。
中间框1121的具体结构这里不做限制，其可以呈板状也可以呈杆状或块状。中间框1121可以具有弹性也可以不具有弹性。当中间框1121具有弹性时， 中间框1121可以与弹性架体112材质相同且两者一体成型。定位支架性对于固定架体抖动时，定位架体111与中间框1121之间的相对运动使第一连接部1122变形并产生弹性回复力，中间框1121与固定架体之间的相对运动使第二连接部1123变形并产生弹性回复力。
中间框1121的存在可以使与固定支架120连接的弹性部件的位置和与定位架体111连接的弹性部件的位置能够任意调整，降低了固定支架120的位置布置对定位架体111的位置影响。
当定位架体111与中间框1121之间仅连接一个第一连接部1122时，定位架体111相对于中间框1121的活动范围较大，为了使得定位架体111与中间框1121之间的相对运动可控，本实施例中，中间框1121的面向定位架体111的表面设置有两个第一连接部1122，两个第一连接部1122的背离中间框1121的端部均分别与定位架体111连接。两个第一连接部1122的中心的连线为第一转动轴线1124(如图8所示)，当中间框1121相对于定位架体111运动时仅能绕第一转动轴线1124转动，且定位架体111绕第一转动轴线1124转动时两个第一连接部1122产生弹性变形。
中间框1121上的两个第一连接部1122可以分别连接于中间框1121的两个相对的端部，当然，两个第一连接部1122也可以连接于中间框1121的内部(即两个第一连接部1122均不与中间框1121的边缘接触)。当两个第一连接部1122分别连接于中间框1121的两个相对的端部(即两个第一连接部1122均分别对应连接于中间框1121的两个相对的边缘)时，两个第一连接部1122之间的间距最大化，从而使得定位架体111更易相对于中间框1121而绕第一转动轴线转动。
同样地，当中间框1121与固定支架120之间仅具有一个第二连接部1123时，中间框1121相对于固定之间的活动范围较大，为了使得中间框1121与固 定支架120之间的相对运动可控。本实施例中，中间框1121的面向固定支架120的表面设置有两个第二连接部1123，两个第二连接部1123的背离中间框1121的端部均分别与固定支架120连接。两个第二连接部1123的中心的连线为第二转动轴线1125(如图8所示)，当中间框1121相对于固定支架120运动时仅能绕第二转动轴线11125转动时，且中间框1121绕第二转动轴线1125转动时两个第二连接部1123产生弹性变形。
中间框1121上的两个第二连接部1123也可以分别连接于中间框1121的两个相对的端部，当然，两个第二连接部1123也可以连接于中间框1121的内部。当两个第二连接部1123分别连接于固定框的两个相对的端部时，两个第二连接部1123之间的间距最大化，从而使得中间框1121更易相对于固定架体而绕第二转动轴线转动。
特别地，如图6至图8所示，为了不使定位架体111相对于固定支架120的运动范围过小，本实施例中，第一转动轴线1124与第二转动轴线1125较交叉设置，即两者不平行。具体地，第一转动轴线1124可以与第二转动轴线1125呈九十度夹角。这样使得第一连接部1122以及第二连接部1123产生变形时定位支架从各个方向上的受力较为均衡，不会出现定位架体111朝某个方向抖动时其受到的弹性恢复力很大，而朝某个方向抖动时其受到的弹性恢复力很小的情况产生。
当第一转动轴线1124与第二转动轴线1125垂直设置时，若定位架体111绕第一转动轴线1124转动，两个第一连接部1122产生弹性变形，两个第二连接部1123变形较小，且其中一个第二连接部1123受压、另一个第二连接部1123受拉。若定位架体111绕第二转动轴线1125转动时，两个第二连接部1123产生弹性变形，两个第一连接部1122变形较小，且其中一个第一连接部1122受压、另一个第一连接部1122受拉。
本实施例中，弹性支架110具有安装摄像头200的安装位置，安装位置配置成当摄像头200安装后，使第一磁力体131与第二磁力体132的相互磁力方向与摄像头200的光路轴线垂直。即第一转动轴线1124配置成当摄像头200固定于固定支架120上后与摄像头200的光路轴线垂直，且第二转动轴线1125配置成当摄像头200固定于固定支架120上后与光路轴线垂直。这样使得摄像头200固定于定位架体111上后更易产生有效抖动，从而让防抖机构100的防抖效果更好。
当两个第一连接部1122以及两个第二连接部1123均设置于中间框1121的边缘时，中间框1121可以包括两个相对设置的第一杆件11211以及两个相对设置的第二杆件11212，两个第一杆件11211以及两个第二杆件11212对应相连形成呈矩形的中间框1121。两个第一连接部1122一一对应连接于两个第一杆件11211，两个第二连接部1123对应连接于两个第二杆件11212。中间框1121的这种结构能够进一步的简化防抖机构100整体的结构。
当中间框1121为上述结构时，第一转动轴线1124可以与第一杆件11211垂直，即两个第一连接部1122的中心的连线垂直于第一杆件11211。同样地，第二转动轴线1125也可以与第二杆件11212垂直，即两个第二连接部1123的中心的连线。第一连接部1122以及第二连接部1123的上述结构能够使得中间框1121的各杆件的受力更加合理，且各杆件能够承受的极限弯矩更大。
固定支架120可以包括固定部121以及延伸部122。延伸部122与固定部121连接，且朝靠近弹性架体112的方向延伸至与弹性架体112的侧边间隔设置。其中，第二磁力体132与延伸部122连接并与第一磁力体131间隔设置。延伸部122的结构更加便于布置第一磁力体131以及第二磁力体132。根据一些实施例，弹性支架110具有安装摄像头200的安装位置，安装位置配置成当摄像头200安装后，使第一磁力体131与第二磁力体132的相互磁力方向与摄 像头200的光路轴线垂直。
第一磁力体131以及第二磁力体132的数量可以根据需要驱动的方向以及力度而定。本实施例中，磁力驱动装置可以包括四个第一磁力体131以及四个第二磁力体132，各第一磁力体131分别一一对应布置于弹性架体112的四周，具体地，四个第一磁力体131一一对应布置于定位架体111的四个方向。各第二磁力体132分别一一对应与各第一磁力体131间隔设置，具体地，四个第二磁力体132均布置于延伸部122的面向第一磁力体131的表面。
定位架体111的形状可以根据实际需求而定，具体地，本实施例中的定位架体111包括四块均分别平行于光路轴线设置的固定板1111，四块固定板1111相互连接形成呈矩形框架，矩形框架用于使摄像头200固定于其内。每个固定板1111均分别具有一个让位孔1112，各第一磁力体131一一对应设置于各让位孔1112且与各让位孔1112的周壁固定连接。当定位架体111由四块固定板1111构成时，延伸部122也可以包括四块板体，每块板体分别对应与一块固定板1111间隔设置，且每块板体的面向固定板1111的表面均可以布置一个第二磁力体132。
本申请的第二方面还提供了一种摄像模组10，该摄像模组10包括上述任一实施例中的防抖机构100，还包括设置于防抖机构100上的摄像头200。
本申请的第三方面还提供了一种电子设备，该电子设备包括上述任意实施中的摄像模组10。电子设备可以为任意具有拍照功能的设备，例如，电子设备可以为手机、平板、智能手表、相机等。
本实施例的附图中相同或相似的标号对应相同或相似的部件；在本申请的描述中，需要理解的是，若有术语“上”、“下”、“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申请和简化描述，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，因此附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，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的具体含义。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种防抖机构，其特征在于，包括：
    固定支架；
    弹性支架，与所述固定支架连接，所述摄像模组的摄像头固定于所述弹性支架，所述弹性支架配置成具有相对于所述固定支架进行弹性抖动的行程；
    电磁驱动装置，包括第一磁力体以及第二磁力体，所述第一磁力体与所述弹性支架连接，所述第二磁力体与所述固定支架连接且与所述第一磁力体磁力耦合；
    其中，所述电磁驱动装置配置成接收电信号后，可使所述第一磁力体以及所述第二磁力体之间磁力根据所述电信号变化，进而驱动所述弹性支架相对于所述固定支架进行抖动，以补偿固定于所述弹性支架上的所述摄像头的拍摄抖动。
  2. 如权利要求1所述的防抖机构，其特征在于，所述弹性支架包括：
    定位架体，用于固定所述摄像头，所述第一磁力体连接于所述定位架体；
    弹性架体，所述弹性架体的一端与所述定位架体连接、另一端与所述固定支架连接，所述弹性架体配置成在所述弹性支架相对于所述固定支架抖动时产生弹性变形。
  3. 如权利要求2所述的防抖机构，其特征在于，所述弹性架体包括：
    中间框；
    第一连接部，具有弹性，所述第一连接部分别连接所述定位架体和所述中间框；
    第二连接部，具有弹性，所述第二连接部分别连接所述中间框和固定支架。
  4. 如权利要求3所述的防抖机构，其特征在于，
    两个所述第一连接部的一个共同端部均连接所述中间框、另一个共同端部均连接所述定位架体，两个所述第一连接部的中心的连线为第一转动轴线，当所述中间框相对于所述定位架体而绕所述第一转动轴线转动时，两个所述第一连接部产生弹性变形；
    两个所述第二连接部的一个共同端部均连接所述中间框、另一个共同端部均连接所述定位架体，两个所述第二连接部的中心的连线为第二转动轴线，当所述中间框相对于所述固定支架而绕所述第二转动轴线转动时，两个所述第二连接部产生弹性变形；
    所述第一转动轴线与所述第二转动轴线较交叉设置。
  5. 如权利要求4所述的防抖机构，其特征在于，
    所述第一转动轴线与所述第二转动轴线呈九十度夹角。
  6. 如权利要求4所述的防抖机构，其特征在于，
    所述第一转动轴线配置成当所述摄像头固定于所述固定支架上后与所述摄像头的光路轴线垂直；
    所述第二转动轴线配置成当所述摄像头固定于所述固定支架上后与所述光路轴线垂直。
  7. 如权利要求4所述的防抖机构，其特征在于，
    所述中间框包括两个相对设置的第一杆件以及两个相对设置的第二杆件，两个所述第一杆件以及两个所述第二杆件依序首尾相连形成所述中间框；
    两个所述第一连接部一一对应连接于两个所述第一杆件，两个所述第二连接部对应连接于两个所述第二杆件。
  8. 如权利要求1所述的防抖机构，其特征在于，所述固定支架包括：
    固定部；
    延伸部，与所述固定部连接，且朝靠近所述弹性架体的方向延伸至与所述弹性架体的侧边间隔设置；
    其中，所述第二磁力体与所述延伸部连接并与所述第一磁力体间隔设置。
  9. 如权利要求2所述的防抖机构，其特征在于，
    所述弹性支架具有安装所述摄像头的安装位置，所述安装位置配置成当所述摄像头安装后，使所述第一磁力体与所述第二磁力体的相互磁力方向与所述摄像头的光路轴线垂直。
  10. 如权利要求9所述的防抖机构，其特征在于，
    所述磁力驱动装置包括四个所述第一磁力体以及四个所述第二磁力体，各所述第一磁力体分别一一对应布置于所述弹性架体的四周，各所述第二磁力体分别一一对应与各所述第一磁力体间隔设置。
  11. 如权利要求10所述的防抖机构，其特征在于，
    所述定位架体包括四块均分别平行于所述光路轴线设置的固定板，四块固定板相互连接形成呈矩形框架，所述矩形框架用于使所述摄像头固定于其内；
    每个所述固定板均分别具有一个让位孔，各所述第一磁力体一一对应设置于各所述让位孔。
  12. 如权利要求1所述的防抖机构，其特征在于，
    所述第一磁力体为永磁体，所述第二磁力体为电磁体，所述第二磁力体配置成根据所述电信号而与所述第一磁力体之间产生磁力变化。
  13. 一种摄像模组，其特征在于，包括：
    权利要求1-12任一项所述的防抖机构；
    所述摄像头。
  14. 一种电子设备，其特征在于，包括权利要求13所述的摄像模组。
PCT/CN2020/073366 2020-01-21 2020-01-21 防抖机构、摄像模组及电子设备 WO2021146880A1 (zh)

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