WO2020243857A1 - 一种光学采集模组 - Google Patents

一种光学采集模组 Download PDF

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Publication number
WO2020243857A1
WO2020243857A1 PCT/CN2019/089720 CN2019089720W WO2020243857A1 WO 2020243857 A1 WO2020243857 A1 WO 2020243857A1 CN 2019089720 W CN2019089720 W CN 2019089720W WO 2020243857 A1 WO2020243857 A1 WO 2020243857A1
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WO
WIPO (PCT)
Prior art keywords
magnet
bracket
restoring force
acquisition module
rotating shaft
Prior art date
Application number
PCT/CN2019/089720
Other languages
English (en)
French (fr)
Inventor
李林珍
储著明
张晋
Original Assignee
瑞声光学解决方案私人有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声光学解决方案私人有限公司 filed Critical 瑞声光学解决方案私人有限公司
Priority to PCT/CN2019/089720 priority Critical patent/WO2020243857A1/zh
Priority to CN201910479468.6A priority patent/CN110262156B/zh
Priority to US17/017,737 priority patent/US11196928B2/en
Publication of WO2020243857A1 publication Critical patent/WO2020243857A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
    • 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
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • G02B26/0883—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements the refracting element being a prism
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/003—Movement of one or more optical elements for control of motion blur by a prism with variable angle or the like
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Definitions

  • the invention relates to the technical field of optical imaging, and more specifically, to an optical acquisition module.
  • OIS Optical Image Stabilization, optical image stabilization
  • the main function is to adjust the camera field of view to facilitate the compensation of the user's hand shake.
  • OIS is mainly achieved through "lens shift", that is, when the lens moves or the camera is tilted, the lens and image sensor will tilt together, but in this method, the prism has a limited range of position movement.
  • the object of the present invention is to provide an optical collection module to solve the problem of the limitation of the existing prism rotation range.
  • an optical acquisition module including a bracket, a rotating assembly rotatably mounted to the bracket, a driving assembly for driving the rotating assembly to rotate relative to the bracket, and a resetting rotating assembly
  • the rotating assembly includes a body and a prism mounted to the body
  • the drive assembly includes a magnet and a plurality of coils
  • the body is rotatably mounted on the bracket, and the magnet is mounted to the bracket
  • the magnetic steel includes two pole faces along the polarization direction, and one of the coil and the magnetic steel The polar faces are opposite.
  • the restoring assembly includes a first restoring force magnet and a second restoring force magnet that are spaced apart from each other, the first restoring force magnet is mounted to the bracket, and the second restoring force magnet Installed to the rotating assembly, the first restoring force magnet and the second restoring force magnet are opposite and attracted to each other.
  • the body includes a rotating shaft
  • the bracket includes a mounting seat
  • the rotating shaft and the mounting seat are in spherical fit.
  • the body further includes a mounting plate, the prism is mounted on one side of the mounting plate, and the magnetic steel and the rotating shaft are mounted on the other side of the mounting plate.
  • the mounting seat is provided with a through hole, and one end of the rotating shaft passes through the through hole to be connected to the second restoring force magnetic steel.
  • the body further includes a connecting piece, one end of the connecting piece is provided with a groove, one end of the rotating shaft is fixed in the groove after passing through the through hole, and the other end of the connecting piece Connected with the second restoring force magnetic steel.
  • the bracket includes a lower shell and a fixing plate installed on the lower shell, the first restoring force magnetic steel is installed on the lower shell, and the mounting seat is arranged on the fixed plate. On the board.
  • the lower housing includes two side walls, the two side walls and the fixing plate form a triangular shape, and the first restoring force magnetic steel is installed at the junction of the two side walls.
  • the triangle is an isosceles triangle.
  • the centers of the mounting plate, the rotating shaft, the first restoring force magnet, and the second restoring force magnet are on a straight line.
  • the rotating assembly can rotate in multiple directions relative to the mounting plate, thereby increasing the moving range of the prism.
  • the first restoring force magnet fixed to the rotating component and the second restoring force magnet fixed to the bracket are not in contact with each other, and attract attraction between each other, thereby pulling the upper rotating component to make its rotation center It is fixed, and when the rotating component rotates, the attraction generated between the second restoring force magnet and the first restoring force magnet produces a restoring torque, which is convenient for the rotating component to reset after displacement.
  • Figure 1 is a schematic diagram of the overall structure of the optical acquisition module of the present invention.
  • FIG. 2 is a schematic cross-sectional view of the optical acquisition module of the present invention in the direction II-II in FIG. 1.
  • Fig. 3 is a schematic diagram of the exploded structure of the entire optical acquisition module of the present invention.
  • FIG. 4 is a partially enlarged schematic diagram of A in FIG. 3 of the optical acquisition module of the present invention.
  • Fig. 5 is a schematic diagram of the specific structure of the fixing plate of the optical collection module of the present invention.
  • Fig. 6 is a schematic diagram of the exploded structure of the optical acquisition module of the present invention as a bracket.
  • FIG. 7 is a schematic diagram of the overall structure of the lower housing of the optical collection module of the present invention.
  • FIG. 8 is a schematic diagram of the exploded structure of the body of the optical acquisition module of the present invention.
  • FIG. 9 is a partial front cross-sectional view of FIG. 2 of the optical collection module of the present invention.
  • FIG. 10 is a schematic diagram of a specific structure of the mounting board of the optical collection module of the present invention.
  • FIG. 11 is a schematic diagram of the exploded structure of the driving assembly of the optical acquisition module of the present invention.
  • FIG. 12 is a top perspective view of the flexible circuit board of the optical acquisition module of the present invention.
  • bracket 11, upper shell; 12, fixed plate; 121, mounting seat; 122, receiving part; 123, through hole; 13, lower shell; 131, mounting groove; 132, side wall; 133 , Recess; 134, card slot; 2, rotating assembly; 21, body; 211, rotating shaft; 212, mounting plate; 213, connecting piece; 214, arc part; 215, receiving cavity; 216, mounting hole; 217, Groove; 218, extension; 22, prism; 3. drive assembly; 31, magnetic steel; 32, coil; 321, first coil group; 322, second coil group; 33, flexible circuit board; 331, buckle Plate; 34, magnetic sensor; 4. return component; 41, first return force magnet; 42, second return force magnet.
  • an optical acquisition module including a bracket 1, a rotating component rotatably mounted to the bracket 1, a driving component 3 for driving the rotating component 2 to rotate relative to the bracket 1, and a driving component 3 for resetting and rotating Component 1’s reply component 4.
  • the bracket 1 includes an upper housing 11, a fixing plate 12 and a lower housing 13.
  • the lower housing 13 is provided with a number of installation grooves 131, and the fixing plate 12 passes through the plurality of installation grooves 131 and is connected to the The lower shell 13 is fixedly connected.
  • the lower housing 13 includes a pair of side walls 132, a mounting seat 121 is provided in the middle of the fixing plate 12, and the thickness of the mounting seat 121 is greater than the thickness of other parts of the fixing plate 12.
  • the mounting seat 121 includes a receiving portion 122 and is disposed in the receiving portion.
  • the through hole 123 of the mounting seat 121 is facilitated by the rotating assembly 2 on the 122 to increase the effect.
  • the accommodating portion 122 is bowl-shaped, and is used for accommodating a part of the rotating assembly 2 and rotatingly contacting it, so that the rotating assembly 2 can rotate relative to the mounting seat 121 in multiple directions. Add effect.
  • the lower casing 13 includes two oppositely arranged side walls 132. In the XY plane, the two side walls 132 and the fixing plate 12 form a triangular shape. The triangle has stability and improves the stability of the connection between the lower casing 13 and the fixing plate 12 Sex. A recess 133 is provided at the junction of the two side walls 132.
  • the rotating assembly 2 includes a main body 21 and a prism 22 mounted to the main body 21.
  • the driving assembly 3 includes a magnet 31 and a plurality of coils 32.
  • the main body 21 is rotatably installed on the bracket 1, the magnetic steel 31 is installed on one of the bracket 1 and the main body 21, and a plurality of coils 32 are installed on the other of the bracket 1 and the main body 21.
  • the body 21 includes a mounting plate 212, a rotating shaft 211 fixed to the mounting plate 212, and a connecting piece 213 at the end of the rotating shaft 211.
  • the prism 22 is mounted on one side of the mounting plate 212, the magnetic steel 31 and the rotating shaft 211 are mounted on the other side of the mounting plate 212 away from the prism 22, and the end of the rotating shaft 211 passes through the passage of the mounting seat 121.
  • Hole 123, the rotating shaft 211 and the receiving part 122 of the mounting seat 121 are spherically fitted, so that the rotating shaft 211 can rotate relative to the mounting seat 121 in a three-dimensional space.
  • a number of coils 32 are mounted on the fixed plate 12 facing the magnet. On one side of 31, the coil 32 is opposite to the magnet 31 and separated by a certain distance.
  • the plurality of coils 32 generate an induced magnetic field after being energized, and the interaction between the induced magnetic field and the permanent magnetic field of the magnet 31 is specifically mutual attraction or mutual repulsion, so that the magnet 31 drives the rotating assembly 2 to rotate relative to the support 1.
  • the drive assembly 3 also includes a flexible circuit board 33 installed between the coils 32 and the fixing board 12, and a magnetic sensor 34 uniformly fixed on the flexible circuit board 33.
  • the flexible circuit board 33 is electrically connected to the coils 32 for orientation.
  • the coil 32 supplies power.
  • the return assembly 4 includes a first return force magnet 41 and a second return force magnet 42.
  • the first return force magnet 41 is mounted on the lower shell 13
  • the second restoring force magnet 42 is detachably mounted to the end of the connecting piece 213 away from the rotating shaft 211 in the recess 133, that is, at the junction of the two side walls 132.
  • the second restoring force magnet 42 is fixed to the bottom of the lower housing 13
  • the first restoring force magnets 41 are separated by a certain distance from each other, and the opposite polarities of the two restoring force magnets 31 are opposite, so that attraction force is generated between the second restoring force magnet 42 and the first restoring force magnet 41, thereby
  • the upper rotating assembly 2 can be pulled, so that the arc-shaped portion 214 of the rotating shaft 211 and the receiving portion 122 are always in contact and can rotate relatively.
  • the first restoring force magnet 41 and the second restoring force magnet 42 form a magnetic spring.
  • the equivalent stiffness of the magnetic spring is about 0.0115 mNm/deg.
  • the side of the mounting plate 212 facing away from the prism 22 is provided with a receiving cavity 215 and a mounting hole 216.
  • the magnet 31 is fixed in the receiving cavity 215.
  • One end of the rotating shaft 211 is fixed in the mounting hole 216.
  • the other end of the rotating shaft 211 is also called the end passing through the through hole 123 and is fixed on the connecting member 213.
  • the rotating shaft 211 and the mounting seat 121 are in spherical fit, so that the rotating shaft 211 can rotate in any direction in the mounting seat 121.
  • the connecting piece 213 is provided with a groove 217, and the end of the rotating shaft 211 is inserted into the groove 217 and fixed to the connecting piece 213.
  • the outer diameter of the connecting piece 213 is larger than the inner diameter of the through hole 123 of the receiving portion 122 and the outer diameter of the end of the rotating shaft. Therefore, the end of the rotating shaft 211 can be prevented from exiting from the through hole 123 of the accommodating portion 122; moreover, the outer diameter of the connecting piece 213 is larger than the outer diameter of the end of the rotating shaft 211, and the end of the rotating shaft 211 is connected to the second restoring force through the connecting piece 213
  • the steel 42 is fixed, so that a larger area of the second restoring force magnet 42 can be used to improve the elastic restoring force of the magnetic spring. effect
  • the magnet 31 is magnetized in a single direction and is polarized along its thickness direction (in this embodiment, the thickness direction of the magnet 31 is parallel to the axis of the rotating shaft), and includes two polar faces along the polarization direction.
  • One side of the magnet 31 is N pole, and the other side is S pole.
  • Several coils 32 are located on one side of the magnet 31 along the polarization direction and opposite to one of the pole faces of the magnet 31.
  • the magnetic steel 31 has a hollow back-shaped structure with a through hole 32 in the middle, four frames are arranged around the through hole 32, and the rotating shaft 211 passes through the through hole.
  • the number of coils 32 is four, arranged in a square shape, and are respectively installed on the side of the fixed plate 12 facing the magnetic steel 31.
  • each coil 32 is facing a frame of magnet 31.
  • every two opposing coils form a group to form a first coil group 321 and a second coil group 322.
  • the two coils in the same group are respectively located on both sides of the rotating shaft 211 and are connected in series and reversed. After energization, the two coils in the same group generate two induced magnetic fields in opposite directions, so that one energized coil attracts the magnetic steel, and the other energized coil repels the magnetic steel.
  • the two coils in the same group are energized with the magnetic steel.
  • Two torques in the same direction are generated between the steel to drive the rotating assembly to rotate around the mounting base 121 to adjust the angle of the prism.
  • the plane where the coil 32 is located is parallel to the plane where the magnet 31 is located.
  • the arc-shaped portion 214 of the rotating shaft 211 and the receiving portion 122 of the mounting seat 121 are spherically fitted, and the diameter of the extension 218 at the bottom of the rotating shaft 211 is smaller than The diameter of the through hole 123 provides space for the rotating shaft 211 to rotate relative to the mounting seat 121; when the coils 32 are not energized, the rotating assembly 2 is at the initial position relative to the mounting plate 212, and at this time, the first restoring force magnet 41 It faces the second restoring force magnet 42 directly.
  • the rotating assembly 2 When only the first coil group 321 is energized, one of the energized coils in the first coil group 321 attracts the magnetic steel 31, and the other energized coil repels the magnetic steel 31.
  • the two energized coils are respectively located on both sides of the rotating shaft 211, Thereby, two torques in the same direction are generated to drive the rotating assembly 2 to rotate around the X axis with the mounting base 121 as a fulcrum; similarly, when only the second coil group 322 is energized, the rotating assembly 2 rotates around the Y axis at this time ;
  • the rotating assembly 2 can rotate around the combined direction of the Y axis and the X axis. In this way, by adjusting the energized coil, the rotating assembly 2 can be rotated in multiple directions.
  • the flexible circuit board 33 is mounted on the fixed board 12, one end of the flexible circuit board 33 is integrally formed with a gusset 331, and one end of the flexible circuit board 33 is fixed to the lower shell through the gusset 331
  • the magnetic sensors 34 are evenly installed on the flexible circuit board 33; in this embodiment
  • the magnetic sensor 34 adopts a Hall sensor, and the Hall sensors are all mounted on the flexible circuit board 33.
  • the Hall sensor is used to measure the magnetic field of the magnet 31. When the prism 22 rotates, the circle magnet 31 also rotates. Then the distance from the Hall sensor to the magnet 31 changes, and the magnetic induction intensity of the magnet 31 measured by the Hall sensor also changes.
  • an element when an element is referred to as being “fixed on” or “disposed on” another element, the element may be directly on the other element or there may be a centering element at the same time.
  • an element When an element is referred to as being “connected” to another element, it can be directly connected to the other element or an intermediate element may also exist.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Toys (AREA)

Abstract

一种光学采集模组，包括支架（1）、可旋转地安装至支架（1）的转动组件（2）、用于驱动转动组件（2）相对于支架（1）旋转的驱动组件（3）以及用于复位转动组件（2）的回复组件（4），转动组件（2）包括本体（21）和安装至本体（21）的棱镜（22）。驱动组件（3）包含磁钢（31）和若干个线圈（32），本体（21）可转动地安装于支架（1）上，磁钢（31）安装至支架（1）和本体（21）其中之一，线圈（32）安装至支架（1）和本体（21）其中之另一，磁钢（31）沿极化方向包含两个极面，线圈（32）与磁钢（31）的其中一个极面相对。通过磁钢（31）与线圈（32）配合使转动组件（2）可相对安装板（212）发生多个方向的转动，继而提高棱镜（22）的移动范围。

Description

一种光学采集模组 技术领域
本发明涉及光学成像技术领域，更具体的，涉及一种光学采集模组。
 背景技术
OIS（Optical Image Stabilization，光学防抖），主要作用是调整摄像头视野以方便对用户手抖进行补偿。OIS主要是通过“镜头移位”来实现，也就是当镜头移动或者摄像头倾斜时，镜头和图像传感器会一并倾斜，但这种方法中，棱镜的位置移动范围有限。
 技术问题
本发明的目的在于提供一种光学采集模组，以解决现有的棱镜转动的范围受限的问题。
 技术解决方案
本发明的技术方案如下：一种光学采集模组，包括支架、可旋转地安装至所述支架的转动组件、用于驱动所述转动组件相对于支架旋转的驱动组件以及用于复位转动组件的回复组件，所述转动组件包括本体和安装至本体的棱镜，所述驱动组件包含磁钢和若干个线圈，所述本体可转动地安装于所述支架上，所述磁钢安装至所述支架和所述本体其中之一，所述线圈安装至所述支架和所述本体其中之另一，所述磁钢沿极化方向包含两个极面，所述线圈与所述磁钢的其中一个极面相对。
作为一种改进，所述回复组件包括相互间隔设置的第一回复力磁钢和第二回复力磁钢，所述第一回复力磁钢安装至所述支架，所述第二回复力磁钢安装至转动组件，所述第一回复力磁钢和第二回复力磁钢相对且相互吸引。
作为一种改进，所述本体包含转动轴，所述支架包含安装座，所述转动轴与安装座之间为球面配合。
作为一种改进，所述本体还包括安装板，所述棱镜安装于所述安装板一侧，所述磁钢和所述转动轴安装于所述安装板的另一侧。
作为一种改进，所述安装座设通孔，所述转动轴的一端穿过所述通孔与所述第二回复力磁钢连接。
作为一种改进，所述本体还包括连接件，所述连接件一端设凹槽，所述转动轴的一端穿过所述通孔后固定于所述凹槽内，所述连接件的另一端与所述第二回复力磁钢连接。
作为一种改进，所述支架包括下壳体和安装在所述下壳体上的固定板，所述第一回复力磁钢安装至所述下壳体，所述安装座设于所述固定板上。
作为一种改进，所述下壳体包括两个侧壁，所述两侧壁与所述固定板构成三角形形状，所述第一回复力磁钢安装于所述两侧壁的连接处。
作为一种改进，所述三角形为等腰三角形，当所述线圈未通电时，所述安装板、转动轴、第一回复力磁钢以及述第二回复力磁钢的中心在一条直线上。
 有益效果
本发明的有益效果在于：
1、通过磁钢与线圈配合使转动组件可相对安装板发生多个方向的转动，继而提高棱镜的移动范围。
2、固定至转动组件的第一回复力磁钢与固定至支架的第二回复力磁钢相互之间不接触、且相互之间产生吸引力，从而拉住上方的转动组件，使得其旋转中心固定，而且当转动组件转动时，第二回复力磁钢与第一回复力磁钢之间产生的吸力，产生一个回复转矩，便于转动组件产生位移后进行复位。
 附图说明
图1为本发明光学采集模组的整体结构示意图。
图2为本发明光学采集模组图1中Ⅱ-Ⅱ方向的截面示意图。
图3为本发明光学采集模组整体的爆炸结构示意图。
图4为本发明光学采集模组图3中A的局部放大示意图。
图5为本发明光学采集模组固定板的具体结构示意图。
图6为本发明光学采集模组是支架的爆炸结构示意图。
图7为本发明光学采集模组下壳体的整体结构示意图。
图8为本发明光学采集模组本体的爆炸结构示意图。
图9为本发明光学采集模组图2的部分正面剖视图。
图10为本发明光学采集模组安装板的具体结构示意图。
图11为本发明光学采集模组驱动组件的爆炸结构示意图。
图12为本发明光学采集模组柔性电路板的俯视立体图。
图中：1、支架；11、上壳体；12、固定板；121、安装座；122、收容部；123、通孔；13、下壳体；131、安装槽；132、侧壁；133、凹陷；134、卡槽；2、转动组件；21、本体；211、转动轴；212、安装板；213、连接件；214、弧形部；215、收容腔；216、安装孔；217、凹槽；218、伸出部；22、棱镜；3、驱动组件；31、磁钢；32、线圈；321、第一线圈组；322、第二线圈组；33、柔性电路板；331、扣板；34、磁性传感器；4、回复组件；41、第一回复力磁钢；42、第二回复力磁钢。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
请参阅图1-4，一种光学采集模组，包括支架1、可旋转地安装至支架1的转动组件2、用于驱动转动组件2相对于支架1旋转的驱动组件3以及用于复位转动组件1的回复组件4。
请一并参阅图2-图5，支架1包括上壳体11、固定板12和下壳体13，下壳体13上开设有若干安装槽131，固定板12穿过若干安装槽131且与下壳体13固定连接。具体地，下壳体13包括一对侧壁132，固定板12的中部设有安装座121，安装座121厚度大于固定板12其他部分的厚度，安装座121包括收容部122以及设置于收容部122上的便于转动组件2穿过安装座121的通孔123加效果。优选地，收容部122为碗形，用于容纳转动组件2的一部分并与之转动接触，以便转动组件2可相对于安装座121在多个方向上的旋转。加效果。
下壳体13包括两个相对设置的侧壁132，在XY平面内，两侧壁132与固定板12构成三角形形状，三角形具有稳定性，提高下壳体13与固定板12之间连接的稳定性。两侧壁132的连接处设有凹陷133。
请一并参阅图2、图3、图7和图8，转动组件2包括本体21和安装至本体21的棱镜22，驱动组件3包括磁钢31和若干个线圈32。其中，本体21可转动地安装于支架1上，磁钢31安装至支架1和本体21其中之一，若干线圈32安装至支架1和本体21其中之另一。本体21包括安装板212、固定至安装板212的转动轴211、位于转动轴211末端的连接件213。在本实施例中，棱镜22安装于安装板212的一侧，磁钢31和转动轴211安装于安装板212的背离棱镜22的另一侧，转动轴211的末端穿过安装座121的通孔123，转动轴211与安装座121的收容部122之间为球面配合，从而使得转动轴211可相对于安装座121在三维空间上的旋转，若干线圈32安装于固定板12的朝向磁钢31的一侧，线圈32与磁钢31相对并间隔一定距离。其中，所述若干线圈32通电后产生感应磁场，感应磁场与磁钢31的永久磁场相互作用具体为相互吸引或者相互排斥，从而使得磁钢31带动转动组件2相对支架1转动。
驱动组件3还包括安装在若干线圈32和固定板12之间的柔性电路板33、均匀固定在柔性电路板33上的磁性传感器34，柔性电路板33与若干线圈32电性连接以用于向线圈32供电。
请一并参阅图2、图3、图4和图9，回复组件4包括第一回复力磁钢41和第二回复力磁钢42，第一回复力磁钢41安装至下壳体13上的凹陷133内、也就是两侧壁132的连接处，第二回复力磁钢42可拆卸安装至连接件213的远离转轴211的一端，第二回复力磁钢42与固定在下壳体13底部的第一回复力磁钢41相互之间间隔一定距离，两回复力磁钢31相对面的极性相反，这样第二回复力磁钢42与第一回复力磁钢41之间产生吸力，从而可拉住上方的转动组件2，使得转动轴211的弧形部214与收容部122始终保持接触并可发生相对转动。第一回复力磁钢41和第二回复力磁钢42形成一个磁力弹簧，优选地，所述磁力弹簧的等效刚度约为0.0115mNm/deg。
请一并参看图2、图5和图9，安装板212背离棱镜22的一侧设有收容腔215和安装孔216。磁钢31固定于收容腔215中。转动轴211的一端固定于安装孔216内。转动轴211的另一端也叫末端穿过通孔123并固定于连接件213上。转动轴211与安装座121之间为球面配合，从而使得转动轴211可在安装座121内沿任意方向转动。连接件213设有凹槽217，转动轴211的末端插入凹槽217内而固定于连接件213，连接件213的外径大于收容部122的通孔123的内径和转动轴末端的外径，从而可防止转动轴211的末端从收容部122的通孔123退出；而且，连接件213的外径大于转动轴211末端的外径，转动轴211的末端通过连接件213与第二回复力磁钢42固定，从而可以使用较大面积的第二回复力磁钢42，提高磁力弹簧的弹性回复力。效果
在本实施例中，磁钢31单方向充磁，沿其厚度方向（本实施例中，磁钢31的厚度方向平行于转轴的轴线方向）极化，沿极化方向包含两个极面，磁钢31的一面均为N极，另一面均为S极，若干线圈32位于磁钢31沿极化方向的一侧并与磁钢31的其中一个极面相对。优选地，磁钢31为中空的回字形结构，中间设通孔32，四条边框围绕通孔32设置，转轴211穿过所述通孔。
请一并参阅图2和图11，在本实施例中，若干线圈32的数量为四个，呈方形排列，分别安装在固定板12的朝向磁钢31的一侧，优选地，每一个线圈32正对磁钢31的一条边框。在本实施例中，每两个相对的线圈构成一组形成第一线圈组321和第二线圈组322，同一组内的两个线圈分别位于转动轴211的两侧且相互串联并反接，通电后同一组内的两个线圈产生两个相反方向的感应磁场，从而一个通电线圈与磁钢相吸，另一个通电线圈与磁钢相斥，因此通电后同一组内的两个线圈与磁钢之间产生两个相同方向的转矩，以驱动转动组件绕安装座121旋转从而调整棱镜的角度。优选地，线圈未通电时，线圈32所在的平面相对磁钢31所在的平面保持平行。
具体地，请一并参阅图2、图3和图11，转动轴211的弧形部214与安装座121的收容部122之间为球面配合，转动轴211底部的伸出部218的直径小于通孔123的直径，从而为转动轴211可相对于安装座121旋转提供空间；当线圈32均不通电时，转动组件2相对安装板212处于初始位置，此时，第一回复力磁钢41与第二回复力磁钢42正对。当仅第一线圈组321通电时，第一线圈组321中的一个通电线圈与磁钢31相吸，另一个通电线圈与磁钢31相斥，两通电线圈分别位于转动轴211的两侧，从而产生两个相同方向的转矩，以驱动转动组件2以安装座121为支点绕X轴方向旋转；同理，当仅第二线圈组322通电时，此时转动组件2绕Y轴方向旋转；当第一线圈组321和第二线圈组322均通电时，转动组件2可绕Y轴和X轴的合成方向旋转。 这样，通过调整通电线圈，可使得转动组件2产生多个方向的旋转。
请参阅图2、图9和图12，柔性电路板33装设于固定板12上，柔性电路板33的一端一体成型有扣板331，柔性电路板33的一端通过扣板331固定于下壳体13的卡槽134内，从而使下壳体13与柔性电路板33固定连接，以防止柔性电路板33相对下壳体13运动；柔性电路板33上均匀安装有磁性传感器34；在本实施例中，磁性传感器34采用霍尔传感器，霍尔传感器均安装在柔性电路板33上，霍尔传感器用来测量磁钢31磁场的，当棱镜22转动时，回字形磁钢31也一起转动，那么霍尔传感器到磁钢31的距离就发生了变化，霍尔传感器测量到的磁钢31磁感应强度也随之变化。
需要说明的是，本实用新型实施例中所有方向性指示（诸如上、下、内、外、顶部、底部……）仅用于解释在某一特定状态（如附图所示）下各部件之间的相对位置关系等，如果该特定状态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (9)

  1. 一种光学采集模组，其特征在于，包括支架、可旋转地安装至所述支架的转动组件、用于驱动所述转动组件相对于支架旋转的驱动组件以及用于复位转动组件的回复组件，所述转动组件包括本体和安装至本体的棱镜，所述驱动组件包含磁钢和若干个线圈，所述本体可转动地安装于所述支架上，所述磁钢安装至所述支架和所述本体其中之一，所述线圈安装至所述支架和所述本体其中之另一，所述磁钢沿极化方向包含两个极面，所述线圈与所述磁钢的其中一个极面相对。
  2. 根据权利要求1所述的光学采集模组，其特征在于：所述回复组件包括相互间隔设置的第一回复力磁钢和第二回复力磁钢，所述第一回复力磁钢安装至所述支架，所述第二回复力磁钢安装至转动组件，所述第一回复力磁钢和第二回复力磁钢相对且相互吸引。
  3. 根据权利要求2所述的光学采集模组，其特征在于：所述本体包含转动轴，所述支架包含安装座，所述转动轴与安装座之间为球面配合。
  4. 根据权利要求2所述的光学采集模组，其特征在于：所述本体包含转动轴，所述支架包含安装座，所述转动轴与安装座之间为球面配合。
  5. 根据权利要求3所述的光学采集模组，其特征在于：所述安装座设通孔，所述转动轴的一端穿过所述通孔与所述第二回复力磁钢连接。
  6. 根据权利要求5所述的光学采集模组，其特征在于：所述本体还包括连接件，所述连接件一端设凹槽，所述转动轴的一端穿过所述通孔后固定于所述凹槽内，所述连接件的另一端与所述第二回复力磁钢连接。
  7. 根据权利要求3所述的光学采集模组，其特征在于：所述支架包括下壳体和安装在所述下壳体上的固定板，所述第一回复力磁钢安装至所述下壳体，所述安装座设于所述固定板上。
  8. 根据权利要求7所述的光学采集模组，其特征在于：所述下壳体包括两个侧壁，所述两侧壁与所述固定板构成三角形形状，所述第一回复力磁钢安装于所述两侧壁的连接处。
  9. 根据权利要求8所述的一种光学采集模组，其特征在于：所述三角形为等腰三角形，当所述线圈未通电时，所述安装板、转动轴、第一回复力磁钢以及述第二回复力磁钢的中心在一条直线上。
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