WO2022142679A1 - 一种用于移动图像传感器视线变焦功能的驱动装置 - Google Patents
一种用于移动图像传感器视线变焦功能的驱动装置 Download PDFInfo
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- 230000000712 assembly Effects 0.000 claims description 17
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- 230000000694 effects Effects 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 6
- 238000011105 stabilization Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013519 translation Methods 0.000 description 3
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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
- H04N23/50—Constructional details
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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
- 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
Definitions
- the present invention relates to the technical field of driving devices, and in particular, to a driving device for moving the sight zoom function of an image sensor.
- the autofocus motor technology of micro optical image stabilization can be roughly divided into three categories: the first type is the camera module axis-shift focus motor; the second type is the lens translation type focus motor; the third type is the lens axis shift type focus motor .
- the camera module axis-shift focus motor is a motor that controls the lens and the image sensor to rotate together;
- the lens-shift focus motor is a motor that controls the lens to move while the image sensor does not move;
- the lens-shift focus motor is a motor that controls the lens to rotate in any direction , while the image sensor does not move.
- the basic principle is the same, that is, the relative displacement of the lens relative to the image sensor is controlled to offset the image offset caused by hand shake.
- the advantages of the current camera module tilt-shift focus motor are the best optical anti-shake effect and image quality.
- the disadvantage is that the moving parts have the highest weight and higher power consumption. The production is relatively simple.
- the disadvantage is that after the optical image stabilization function is turned on, the resolution at the edge of the image is relatively poor.
- the optical axis will inevitably tilt. When the tilt angle is large, it will lead to image frame size The corners are partially out of focus and blurred; the structural complexity of the lens shift zoom motor and the resolution at the edge of the image are between those of the camera module axis shift zoom motor and the lens shift zoom motor.
- the lens translation zoom motor has become the mainstream solution in anti-shake solutions for mobile terminals such as mobile phones.
- the structure of the translational zoom motor currently on the market is still a little less complex, and has the characteristics of low manufacturing yield and poor reliability, resulting in a series of problems such as high cost and difficulty in generalization.
- a driving device for moving the sight zoom function of the image sensor which can realize the OIS anti-shake effect without driving the lens by driving the image sensor only.
- a driving device for moving the sight zoom function of an image sensor including:
- a base a mover module assembly movably connected to the base, a hook assembly fixed at the corner of the base, and a first set of coils and a second set of coils fixed on the base, the first set of coils and Hall chips are arranged in the second group of coils, and the Hall chips are fixed on the base;
- the mover module assembly is arranged in the base, and the mover module assembly is located just above the first group of coils and the second group of coils and is spaced apart, and the first group of coils and the second group of coils and Hall chips are formed Closed-loop control module;
- the corner of the mover module assembly is elastically connected with the hook assembly, and the closed-loop control module controls the position of the mover module assembly in the X-Y axis to drive and adjust.
- the first group of coils and the second group of coils have the same structure, and the first group of coils includes a first coil and a second coil disposed opposite to the first coil, and a Hall is disposed in the second coil chip.
- the second set of coils includes a third coil and a fourth coil disposed opposite to the third coil, and a Hall chip is disposed in the fourth coil.
- the second coil is disposed adjacent to the fourth coil
- the first coil is disposed adjacent to the third coil
- the first coil and the second coil are connected in series
- the third coil and the fourth coil are disposed adjacent to each other.
- the coils are connected in series.
- the mover module assembly includes a limit plate, a support plate clamped at four corners of the limit plate, and a first group of magnet assemblies and a second magnet assembly clamped on the limit plate.
- the first set of magnet assemblies and the second magnet assemblies are disposed adjacent to the limiting plate.
- the first set of magnet assemblies includes a first magnet piece and a second magnet piece disposed opposite to the first magnet piece, wherein the first magnet piece is clamped at the edge of the limiting plate, and the The second magnet piece is clamped on the edge of the limiting plate opposite to the first magnet piece.
- the second magnet assembly includes a third magnet piece and a fourth magnet piece disposed opposite to the third magnet piece, wherein the third magnet piece is clamped at the edge of the limiting plate, and the first magnet piece The four magnet pieces are clamped on the edge of the limiting plate opposite to the third magnet piece.
- the first magnet piece is arranged adjacent to the fourth magnet piece
- the second magnet piece is arranged adjacent to the third magnet piece
- the first magnet piece, the second magnet piece, the third magnet piece and the The fourth magnet pieces are all located at the middle position of the edge of the limiting plate.
- the first magnet piece, the second magnet piece, the third magnet piece and the fourth magnet piece are respectively arranged at intervals above the first coil, the second coil, the third coil and the fourth coil, respectively, and the first magnet
- the first magnet piece, the second magnet piece, the third magnet piece and the fourth magnet piece each include at least two magnets.
- a support extension plate is integrally connected to the four corners of the limiting plate, the support extension plate is matched with the support plate, and the support extension plate includes a first extension edge, which is connected with the second extension plate.
- a second extension edge integrally connected with the extension edge and a third extension edge integrally connected with the second extension edge.
- a first clipping strip is fixed on the first extending edge
- a second clipping strip is fixed on the third extending edge
- the first clipping strip and the second clipping strip are used for clipping Connect the support plate.
- a ball fixing seat is fixed on the surface of the support plate close to the base, the ball fixing seat is provided with a ball, and the highest point of the ball protrudes from the end surface of the ball fixing seat.
- a spring connecting hook is fixed on one side of the support plate, and the spring connecting hook is located at the third extending edge of the limiting plate and extends out of the third extending edge.
- the hook assembly includes a spring fixing plate fixed on the base, a spring fixing ring fixed on the spring fixing plate, and a spring connected to the spring fixing ring, and the spring is away from the spring fixing ring on the spring fixing ring.
- One end is connected to the spring connecting hook.
- the spring fixing plate is matched with the corners of the base, and the four corners of the base are fixed with hook assemblies, and the base is elastically connected to the mover module assembly through the springs in the hook assemblies.
- the first coil and the second coil are connected in series to form a first current loop
- the third coil and the fourth coil are connected in series to form a second current loop
- the end lines of the first coil or the second coil are connected with two
- the Hall chip is connected with four terminal pins, the terminal pins on the Hall chip, the first coil or the second coil and the third coil or the third coil in the first group of coils and the second group of coils.
- the extension lines of the end feet of the four coils are all integrally embedded in the base.
- a first distance is set between the first extension side and the third extension side of the four corners of the limiting plate and the sides opposite to the base respectively, and the first distance is used for the mover module assembly and the base Compensation displacement for moving between.
- the first distance is 0.2-0.4 mm.
- the present invention has the beneficial effects that hook assemblies are fixed at the four corners of the base, so that the movable sub-module assembly is elastically connected with the hook assembly spring, and the limiter in the movable sub-module assembly is elastically connected.
- the four edges of the position board are clamped with magnet pieces, and the four sides of the base are fixed with coils.
- the magnet pieces correspond to the coils one by one. When the coil is energized, the coils interact with the magnet pieces to generate electromagnetic force.
- the limit plate to do directional anti-shake movement in the X-Y axis
- the Hall chip on the first set of coils and the second set of coils respectively detect the position of the mover module assembly in the XY axis, and then detect the mover module assembly.
- the closed-loop position feedback control of the mover module assembly on the XY axis is realized, and the overall position precise control is performed at the same time. Make the anti-shake angle and thrust large, high precision, optical anti-shake effect and good image quality.
- FIG. 1 is a three-dimensional structural diagram of a driving device for moving the sight zoom function of an image sensor according to the present invention
- FIG. 2 is a schematic diagram of the internal structure of the base of the driving device for moving the sight zoom function of the image sensor according to the present invention
- FIG. 3 is a three-dimensional structural schematic diagram of a mover module assembly of a driving device for moving an image sensor line of sight zoom function according to the present invention
- FIG. 4 is a three-dimensional structural schematic diagram of a mover module assembly and a coil of the drive device for the zoom function of the sight line of the mobile image sensor according to the present invention
- FIG. 5 is a three-dimensional structural schematic diagram of a hook assembly of a driving device for moving an image sensor sight zoom function according to the present invention
- FIG. 6 is a schematic diagram of a three-dimensional structure of the connection between the first group of coils and the second group of coils of the driving device for the zoom function of the sight line of the mobile image sensor according to the present invention.
- a driving device for moving the sight zoom function of an image sensor includes: a base 10 , a mover module assembly 20 movably connected to the base 10 , and a hook fixed at the corner of the base 10
- the assembly 30 and the first set of coils 40 and the second set of coils 50 arranged on the base 10, the first set of coils 40 and the second set of coils 50 are provided with Hall chips 60, the Hall chips 60 is fixed on the base 10, and the coil assembly on the base 10 and the Hall chip 60 are combined to achieve precise control of the displacement of the moving sub-module assembly 20 on the horizontal plane, and then the displacement of the image sensor disposed on the moving sub-module assembly 20 is achieved.
- the moving sub-module assembly 20 is arranged in the base 10, and the moving sub-module assembly 20 is located directly above the first group of coils 40 and the second group of coils 50
- the coils are arranged at intervals, and the first group of coils 40, the second group of coils 50 and the Hall chip 60 form a closed-loop control module.
- the first group of coils 40 and the second group of coils 50 are energized to form a current control loop.
- the position of the mover module assembly 20 is sensed through the Hall chip 60; the corner of the mover module assembly 20 is elastically connected with the hook assembly 30, so that when the mover module assembly 20 is displaced by a large angle, it will not be displaced Exceeding the base 10, the movable sub-module assembly 20 is controlled to be displaced within a certain range, and the closed-loop control module controls the position of the movable sub-module assembly 20 in the X-Y axis to drive and adjust, so that the anti-shake thrust is large, the precision is high, and the optical The anti-shake effect and impact quality are good, and the anti-shake angle is large.
- the first group of coils 40 and the second group of coils 50 have the same structure, and the first group of coils 40 includes a first coil and a second coil disposed opposite to the first coil, the second coil A Hall chip 60 is arranged in the coil, the second group of coils 50 includes a third coil and a fourth coil arranged opposite to the third coil, the Hall chip 60 is arranged in the fourth coil, and the first coil The second coil is disposed adjacent to the fourth coil, the first coil is disposed adjacent to the third coil, the first coil is connected in series with the second coil, and the third coil is connected in series with the fourth coil, wherein, The Hall chip 60 on the second group of coils 50 is located in the X-axis direction, and by sensing the magnetic change of the magnet on the X-axis opposite to the Z-axis, the position of the mover module assembly 20 in the X-axis direction can be detected, thereby realizing Closed-loop position feedback control in the X axis; the Hall chip 60 on the first group of coils
- the mover module assembly 20 includes a limit plate 21 , a support plate 24 clamped at the four corners of the limit plate 21 , and a first set of magnet assemblies 22 clamped on the limit plate 21 and The second magnet assembly 23, the first set of magnet assemblies 22 and the second magnet assembly 23 are disposed adjacent to the limiting plate 21, the first set of magnet assemblies 22 includes a first magnet piece and a The second magnet piece is arranged oppositely, wherein the first magnet piece is clamped at the edge of the limit plate 21, and the second magnet piece is clamped at the edge of the limit plate 21 opposite to the first magnet piece,
- the second magnet assembly 23 includes a third magnet piece and a fourth magnet piece disposed opposite to the third magnet piece, wherein the third magnet piece is clamped at the edge of the limiting plate 21 , and the fourth magnet piece The magnet piece is clamped on the edge of the limiting plate 21 opposite to the third magnet piece, wherein the first set of magnet components 22 and the second set of magnet components 23 correspond to the first set of coils
- the Hall chip 60 detects the position of the mover module assembly 20 by sensing the change of the magnetic field of the magnet pieces in the first set of magnet assemblies 22 and the second magnet assembly 23 , so that the current position of the mover module assembly 20 is based on the magnetic field of the Hall chip 60 .
- the detection result is controlled by feedback, and at the same time, the four sides of the limit plate 21 in the mover module assembly 20 are respectively fixed with magnet pieces, so that the Hall chip 60 can accurately detect and match the position of the mover module assembly 20 in the XY axial direction. control.
- first magnet piece is arranged adjacent to the fourth magnet piece
- second magnet piece is arranged adjacent to the third magnet piece
- first magnet piece, the second magnet piece, the third magnet piece and the The fourth magnet pieces are all located at the middle of the edge of the limiting plate 21, and the first magnet piece, the second magnet piece, the third magnet
- the first magnet piece, the second magnet piece, the third magnet piece and the fourth magnet piece are firmly connected to the third clamping strips 25 at the four edges of the limiting plate 21, respectively. on the limit plate 21 .
- the first magnet piece, the second magnet piece, the third magnet piece and the fourth magnet piece are respectively arranged at intervals directly above the first coil, the second coil, the third coil and the fourth coil, and the first The magnet piece, the second magnet piece, the third magnet piece and the fourth magnet piece each include at least two magnets, wherein the first magnet piece, the second magnet piece, the third magnet piece, the fourth magnet piece and the first coil , the second coil, the third coil and the fourth coil are facing each other, by energizing the first coil, the second coil, the third coil and the fourth coil, the first magnet piece, the second magnet piece, the third The magnet piece and the fourth magnet piece act to generate an electromagnetic force, which drives the displacement of the mover module assembly 20 in the XY axis, and the first magnet piece, the second magnet piece, the third magnet piece and the fourth magnet piece
- the area of the member is larger than that of the first coil, the second coil, the third coil and the fourth coil.
- the four corners of the limiting plate 21 are respectively integrally connected with support extension plates, the support extension plates are matched with the support plate 24 , and the support extension plates include a first extension plate. side, a second extension side integrally connected with the first extension side, and a third extension side integrally connected with the second extension side, the first extension side is fixed with a first clamping strip 27, A second clamping strip 28 is fixed on the third extending edge. The first clamping strip 27 and the second clamping strip 28 are used for clamping the support plate 24 close to the surface of the base 10 .
- a ball fixing seat is fixed on the ball fixing seat, the ball fixing seat is provided with a ball 26, and the highest point of the ball 26 protrudes from the end face of the ball fixing seat, and the entire mover module is supported by the balls 26 at the four corners of the limit plate 21.
- the assembly 20, and the limiting plate 21 is driven to slide smoothly on the base 10 by the balls 26.
- a spring connecting hook 241 is fixed on one side of the support plate 24 , and the spring connecting hook 241 is located at the third extending edge of the limiting plate 21 and extends out of the third extending edge.
- the hook assembly 30 It includes a spring fixing plate 31 fixed on the base 10 , a spring fixing ring 32 fixed on the spring fixing plate 31 and a spring 33 connected to the spring fixing ring 32 , and the spring 33 is far away from the spring fixing ring 32 One end is connected to the spring connecting hook 241, the spring fixing plate 31 is matched with the corners of the base 10, and the four corners of the base 10 are fixed with the hook assemblies 30, and the base 10 passes through the springs in the hook assemblies 30.
- the first coil and the second coil are connected in series to form a first current loop
- the third coil and the fourth coil are connected in series to form a second current loop
- the end lines of the first coil or the second coil are connected with Two terminal pins
- the terminal line of the third coil or the fourth coil is connected with two terminal pins
- the Hall chip 60 is connected with four terminal pins
- the first group of coils 40 and the second group of coils 50 are connected with two terminal pins.
- the terminal pins on the Hall chip 60 , the extension lines of the first coil or the second coil, and the terminal pins of the third coil or the fourth coil are embedded in the base 10 in one piece.
- a first distance is set between the first extension side and the third extension side of the four corners of the limiting plate 21 and the sides opposite to the base 10 respectively, and the first distance is used for the mover module assembly. 20 and the base 10 for the compensation displacement, the first distance is 0.2-0.4mm, and there is a distance between the limit plate 21 and the base 10, which is convenient for the limit plate 21 to move on the base 10, so as to provide accurate Control and stabilization angle.
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Abstract
一种用于移动图像传感器视线变焦功能的驱动装置,包括:底座(10)、活动连接于底座(10)上的动子模块组件(20)、固定于底座(10)拐角处的挂钩组件(30)及固定于底座(10)上的第一组线圈(40)与第二组线圈(50),第一组线圈(40)与第二组线圈(50)中均设置有霍尔芯片(60),霍尔芯片(60)固接于底座(10)上;动子模块组件(20)设置于底座(10)内,且动子模块组件(20)位于第一组线圈(40)与第二组线圈(50)的正上方且间隔设置,且第一组线圈(40)与第二组线圈(50)及霍尔芯片(60)构成闭环控制模块;动子模块组件(20)的拐角处与挂钩组件(30)弹性连接,且闭环控制模块控制动子模块组件(20)在X-Y轴向的位置驱动调整。单驱动图像传感器,不驱动镜头的方式下实现OIS防抖功效。
Description
本发明涉及驱动装置的技术领域,特别涉及一种用于移动图像传感器视线变焦功能的驱动装置。
手机等电子设备在拍摄过程中拍出的照片有时会发虚,即拍摄出来的画面不够清晰,发生重影或模糊的情况。这些原因,除了偶尔的失焦(即摄像镜头未能正常对焦)以外,很大程度上是因为拍摄景物曝光时发生微小抖动所致。一般而言,在手持条件下经常会发生这种极轻微的抖动的现象,故近年来对防抖技术功能开发需求相对较大。在此背景下,OIS(光学图像稳定系统)光学防抖功能的提案也随之增多,微型光学防抖技术逐渐被各类高端手机所采纳,借此希望能有效降低低光环境下拍出模糊照片的机率以及有效解决拍摄过程中手抖动所造成的困扰。然而相对于一般自动对焦马达而言,具备OIS光学防抖功能的设计比较复杂、生产效率及良率较低,故开发有一定的难度。目前,微型光学防抖的自动对焦马达技术大致可分为三类:第一类为相机模块移轴式对焦马达;第二类为镜头平移式对焦马达;第三类为镜头移轴式对焦马达。具体地,相机模块移轴式对焦马达是马达控制镜头和影像传感器一起转动;镜头平移式对焦马达是马达控制镜头平移,而影像传感器不动;镜头移轴式对焦马达是马达控制镜头任意方向转动,而影像传感器不动。事实上,不论是平移式还是移轴式,其基本原理都是一样的,即控制镜头相对于图像传感器发生相对位移而将手抖造成的图像偏移抵消补偿掉。
但是目前相机模块移轴式对焦马达的优点是光学防抖效果及影像质素最佳,缺点是移动部件重量最高、功耗较大;镜头移轴式对焦马达的优点是结构与普通AF马达比较接近,生产相对简单,缺点是在光学防抖功能开启后,影像边缘的解像度较为逊色,镜头在做平移时会不可避免的产生光轴的倾斜,当倾斜角度较大时,会导致图像画幅的边角部分失焦模糊;镜头平移式变焦马达的结构复杂性及影像边缘解像度介乎于相机模块移轴式变焦马达和镜头移轴式变焦马达之间。镜头平移式变焦马达成为移动终端如手机等防抖方案中的主流方案。然而,目前市面上的平移式变焦马达结构仍稍欠复杂,有制造良率低、可靠性能差等特点,导致成本较高、难以普遍性推广等一系列问题。
发明内容
针对现有技术中存在的不足之处,本发明的目的是提供一种用于移动图像传感器视线变焦功能的驱动装置,单驱动图像传感器,不驱动镜头的方式下实现OIS防抖功效。为了实现根据本发明的上述目的和其他优点,提供了一种用于移动图像传感器视线变焦功能的驱动装置,包括:
底座、活动连接于所述底座上的动子模块组件、固定于所述底座拐角处的挂钩组件及设置于固定于底座上的第一组线圈与第二组线圈,所述第一组线圈与第二组线圈中均设置有霍尔芯片,所述霍尔芯片固接于底座上;
所述动子模块组件设置于底座内,且动子模块组件位于第一组线圈与第二组线圈的正上方且间隔设置,且所述第一组线圈与第二组线圈及霍尔芯片构成闭环控制模块;
所述动子模块组件的拐角处与挂钩组件弹性连接,且所述闭环控制模块控制动子模块组件在X-Y轴向的位置驱动调整。
优选的,所述第一组线圈与第二组线圈结构相同,且第一组线圈包括第一线圈及与所述第一线圈相对设置的第二线圈,所述第二线圈中设置有霍尔芯片。
优选的,所述第二组线圈包括第三线圈及与所述第三线圈相对设置的第四线圈,所述第四线圈中设置有霍尔芯片。
优选的,所述第二线圈与第四线圈相邻设置,所述第一线圈与第三线圈相邻设置,且所述第一线圈与第二线圈串联连接,所述第三线圈与第四线圈串联连接。
优选的,所述动子模块组件包括限位板、卡接于所述限位板四边角处的支撑板及卡接于限位板上的第一组磁石组件与第二磁石组件,所述第一组磁石组件与第二磁石组件相邻设置于限位板上。
优选的,所述第一组磁石组件包括第一磁石件及与所述第一磁石件相对设置的第二磁石件,其中,所述第一磁石件卡接于限位板边沿处,所述第二磁石件卡接于限位板与第一磁石件相对的边沿处。
优选的,所述第二磁石组件包括第三磁石件及与所述第三磁石件相对设置的第四磁石件,其中,所述第三磁石件卡接于限位板边沿处,所述第四磁石件卡接于限位板与第三磁石件相对的边沿处。
优选的,所述第一磁石件与第四磁石件相邻设置,且所述第二磁石件与第三磁石件相邻设置,且第一磁石件、第二磁石件、第三磁石件及第四磁石件均位于限位板边沿中间位置处。
优选的,第一磁石件、第二磁石件、第三磁石件及第四磁石件分别依次间隔设置于第一线圈、第二线圈、第三线圈及第四线圈的正上方,且第一磁石件、第二磁石件、第三磁石件及第四磁石件均分别至少包括有两个磁石。
优选的,所述限位板的四个边角处分别一体式连接有支撑延长板,所述支撑延长板与支撑板相匹配,且所述支撑延长板包括第一延伸边、与所述第一延伸边一体式连接的第二延伸边及与所述第二延伸边一体式连接的第三延伸边。
优选的,所述第一延伸边固接有第一卡接条,所述第三延伸边上固接有第二卡接条,所述第一卡接条与第二卡接条用于卡接支撑板。
优选的,所述支撑板靠近底座的表面上固接有滚珠固定座,所述滚珠固定座中设置有滚珠,且所述滚珠最高点凸出滚珠固定座的端面。
优选的,所述支撑板一侧边上固接有弹簧连接勾,所述弹簧连接勾位于限位板的第三延伸边处且延伸出第三延伸边。
优选的,所述挂钩组件包括固定于底座上的弹簧固定板、固定于所述弹簧固定板上的弹簧固定环及连接于所述弹簧固定环上的弹簧,所述弹簧远离弹簧固定环上的一端连接于弹簧连接勾。
优选的,所述弹簧固定板与底座的拐角相匹配,且底座的四个拐角处均固接有挂钩组件,所述底座通过挂钩组件中的弹簧与动子模块组件弹性连接。
优选的,所述第一线圈与第二线圈串联连接形成第一电流回路,所述第三线圈与第四线圈串联连接形成第二电流回路,且第一线圈或第二线圈的端线连接有两个端脚,第三线圈或第四线圈的端线连接有两个端脚。
优选的,所述霍尔芯片上连接有四个端脚,所述第一组线圈与第二组线圈中的霍尔芯片上的端脚、第一线圈或第二线圈及第三线圈或第四线圈的端脚的延展线路均一体式嵌埋于底座内。
优选的,所述限位板的四个边角的第一延伸边与第三延伸边分别与底座相对的边之间设置有第一距离,所述第一距离用于动子模块组件与底座之间移动的补偿位移。
优选的,所述第一距离为0.2-0.4mm。
本发明与现有技术相比,其有益效果是:通过在底座四个拐角处均固接有挂钩组件,使得动子模块组件通过与挂钩组件弹簧进行弹性连接,且动子模块组件中的限位板上的四边沿处均卡接有磁石件,而底座上四边处均固接有线圈,其中磁石件与线圈一一相对应,线圈进行通电时,使得线圈与磁石件相互作用产生电磁力,进而驱使限位板在X-Y轴方做定向防抖移动,而且通过第一组线圈与第二组线圈上霍尔芯片分别检测动子模块组件在XY轴向的位置,进而检测动子模块组件在XY轴向位置,实现对动子模块组件在XY轴上闭环位置反馈控制,同时进行全面位置精准调控,该调控负载轻,所需功耗小,而且通过底座与动子模块组件弹性连接,使得防抖角度大且推力大,精度高,光学防抖效果及影像质素佳。
图1为根据本发明的用于移动图像传感器视线变焦功能的驱动装置的三维结构示意图;
图2为根据本发明的用于移动图像传感器视线变焦功能的驱动装置的底座内部结构示意图;
图3为根据本发明的用于移动图像传感器视线变焦功能的驱动装置的动子模块组件三维结构示意图;
图4为根据本发明的用于移动图像传感器视线变焦功能的驱动装置的动子模块组件与线圈的三维结构示意图;
图5为根据本发明的用于移动图像传感器视线变焦功能的驱动装置的挂钩组件的三维结构示意图;
图6为根据本发明的用于移动图像传感器视线变焦功能的驱动装置的第一组线圈与第二组线圈连接三维结构示意图。
图中:10.底座;20.动子模块组件;30.挂钩组件;40.第一组线圈;50.第二组线圈;60.霍尔芯片;21.限位板;22.第一组磁石组件;23.第二磁石组件,所述第一组磁石组件;24.支撑板;25.第三卡接条;26.滚珠;27.第一卡接条;28.第二卡接条;241.弹簧连接勾;31.弹簧固定板;32.弹簧固定环;33.弹簧。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显 然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
参照图1-6,一种用于移动图像传感器视线变焦功能的驱动装置,包括:底座10、活动连接于所述底座10上的动子模块组件20、固定于所述底座10拐角处的挂钩组件30及设置于固定于底座10上的第一组线圈40与第二组线圈50,所述第一组线圈40与第二组线圈50中均设置有霍尔芯片60,所述霍尔芯片60固接于底座10上,通过底座10上线圈组件与霍尔芯片60组合达到对动子模块组件20在水平面上的位移精准控制,进而对设置于动子模块组件20上的图像传感器的位移进行控制,起到防抖作用,且防抖的角度大;所述动子模块组件20设置于底座10内,且动子模块组件20位于第一组线圈40与第二组线圈50的正上方且间隔设置,且所述第一组线圈40与第二组线圈50及霍尔芯片60构成闭环控制模块,在使用时,对第一组线圈40与第二组线圈50中通电形成电流控制回路,通过霍尔芯片60对动子模块组件20位置进行感应;所述动子模块组件20的拐角处与挂钩组件30弹性连接,使得动子模块组件20发生较大角度的位移时,不会位移过度出底座10,控制动子模块组件20在一定的范围内进行位移,且所述闭环控制模块控制动子模块组件20在X-Y轴向的位置驱动调整,使得防抖推力大,精度高,光学防抖效果及影响质素佳,可防抖角度大。
参照图2-3,所述第一组线圈40与第二组线圈50结构相同,且第一组线圈40包括第一线圈及与所述第一线圈相对设置的第二线圈,所述第二线圈中设置有霍尔芯片60,所述第二组线圈50包括第三线圈及与所述第三线圈相对设置的第四线圈,所述第四线圈中设置有霍尔芯片60,所述第二线圈与第四线圈相邻设置,所述第一线圈与第三线圈相邻设置,且所述第一线圈与第二线圈串联连接,所述第三线圈与第四线圈串联连接,其中,第二组线圈50上的霍尔芯片60位于X轴方向上,感应Z轴对向的X轴向上磁石磁气变化情况,即可检测出动子模块组件20在X轴方向的位置,从而实现X轴向的闭环位置反馈控制;第一组线圈40上的霍尔芯片60位于Y轴方向上,感应Z轴向的Y轴向上磁石磁气变化情况,即可检测出动子模块组件20在Y轴方向的位置,从而实现Y轴向的闭环位置反馈控制,通过对动子模块组件20在XY轴向的全面位置控制,从而对动子模块组件20X-Y轴向的位置驱动调整做到全面精准调控。
参照图2,所述动子模块组件20包括限位板21、卡接于所述限位板21四边角处的支撑板24及卡接于限位板21上的第一组磁石组件22与第二磁石组件23,所述第一组磁石组件22与第二磁石组件23相邻设置于限位板21上,所述第一组磁石组件22包括第一磁石件及与所述第一磁石件相对设置的第二磁石件,其中,所述第一磁石件卡接于限位板21边沿处,所述第二磁石件卡接于限位板21与第一磁石件相对的边沿处,所述第二磁石组件23包括第三磁石件及与所述第三磁石件相对设置的第四磁石件,其中,所述第三磁石件卡接于限位板21边沿处,所述第四磁石件卡接于限位板21与第三磁石件相对的边沿处,其中第一组磁石组件22及第二磁石组件23分别与第一组线圈40与第二组线圈50一一相对应,霍尔芯片60通过感应第一组磁石组件22及第二磁石组件23中磁石件的磁 场的变化,检测动子模块组件20所在位置,使得动子模块组件20的现行位置基于霍尔芯片60的检测结果而受到反馈控制,同时动子模块组件20中的限位板21的四条边上分别固接有磁石件,使得霍尔芯片60对动子模块组件20在XY轴向位置能够精准检测与控制。
进一步的,所述第一磁石件与第四磁石件相邻设置,且所述第二磁石件与第三磁石件相邻设置,且第一磁石件、第二磁石件、第三磁石件及第四磁石件均位于限位板21边沿中间位置处,通过在限位板21的四条边沿处一体式固接有第三卡接条25,第一磁石件、第二磁石件、第三磁石件及第四磁石件分别卡接于限位板21的四条边沿处的第三卡接条25上,使得第一磁石件、第二磁石件、第三磁石件及第四磁石件稳固的连接于限位板21上。
参照图4,第一磁石件、第二磁石件、第三磁石件及第四磁石件分别依次间隔设置于第一线圈、第二线圈、第三线圈及第四线圈的正上方,且第一磁石件、第二磁石件、第三磁石件及第四磁石件均分别至少包括有两个磁石,其中第一磁石件、第二磁石件、第三磁石件及第四磁石件与第一线圈、第二线圈、第三线圈及第四线圈的相正对,通过对第一线圈、第二线圈、第三线圈及第四线圈进行通电,对第一磁石件、第二磁石件、第三磁石件及第四磁石件进行作用产生电磁力,通过该电磁力对动子模块组件20在XY轴向位移进行驱动,且第一磁石件、第二磁石件、第三磁石件及第四磁石件的面积大于第一线圈、第二线圈、第三线圈及第四线圈的面积。
参照图3和图5,所述限位板21的四个边角处分别一体式连接有支撑延长板,所述支撑延长板与支撑板24相匹配,且所述支撑延长板包括第一延伸边、与所述第一延伸边一体式连接的第二延伸边及与所述第二延伸边一体式连接的第三延伸边,所述第一延伸边固接有第一卡接条27,所述第三延伸边上固接有第二卡接条28,所述第一卡接条27与第二卡接条28用于卡接支撑板24,所述支撑板24靠近底座10的表面上固接有滚珠固定座,所述滚珠固定座中设置有滚珠26,且所述滚珠26最高点凸出滚珠固定座的端面,通过限位板21四角处的滚珠26支撑起整个动子模块组件20,而且通过滚珠26带动限位板21在底座10上顺畅滑动,当第一组线圈40与第二组线圈50中的线圈通电后,而通电后的线圈与磁石件相互作用会产生电磁力,进而趋势动子模块组件20在X-Y轴放方向做定向防抖驱动。
进一步的,所述支撑板24一侧边上固接有弹簧连接勾241,所述弹簧连接勾241位于限位板21的第三延伸边处且延伸出第三延伸边,所述挂钩组件30包括固定于底座10上的弹簧固定板31、固定于所述弹簧固定板31上的弹簧固定环32及连接于所述弹簧固定环32上的弹簧33,所述弹簧33远离弹簧固定环32上的一端连接于弹簧连接勾241,所述弹簧固定板31与底座10的拐角相匹配,且底座10的四个拐角处均固接有挂钩组件30,所述底座10通过挂钩组件30中的弹簧33与动子模块组件20弹性连接,动子模块组件20中的限位板21四个边角分别与挂钩组件30中的弹簧33连接,使得限位板21在底座10上顺畅在X-Y轴向运动。
参照图6,所述第一线圈与第二线圈串联连接形成第一电流回路,所述第三线圈与第四线圈串联连接形成第二电流回路,且第一线圈或第二线圈的端线连接有两个端脚,第三线圈或第四线圈的端 线连接有两个端脚,所述霍尔芯片60上连接有四个端脚,所述第一组线圈40与第二组线圈50中的霍尔芯片60上的端脚、第一线圈或第二线圈及第三线圈或第四线圈的端脚的延展线路均一体式嵌埋于底座10内。
进一步的,所述限位板21的四个边角的第一延伸边与第三延伸边分别与底座10相对的边之间设置有第一距离,所述第一距离用于动子模块组件20与底座10之间移动的补偿位移,所述第一距离为0.2-0.4mm,限位板21与底座10之前设置有间距,便于限位板21在底座10上运动,以便于提供精准的控制与防抖角度。
这里说明的设备数量和处理规模是用来简化本发明的说明的,对本发明的应用、修改和变化对本领域的技术人员来说是显而易见的。
尽管本发明的实施方案已公开如上,但其并不仅限于说明书和实施方式中所列运用,它完全可以被适用于各种适合本发明的领域,对于熟悉本领域的人员而言,可容易地实现另外的修改,因此在不背离权利要求及等同范围所限定的一般概念下,本发明并不限于特定的细节和这里示出与描述的图例。
Claims (19)
- 一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,包括:底座(10)、活动连接于所述底座(10)上的动子模块组件(20)、固定于所述底座(10)拐角处的挂钩组件(30)及设置于固定于底座(10)上的第一组线圈(40)与第二组线圈(50),所述第一组线圈(40)与第二组线圈(50)中均设置有霍尔芯片(60),所述霍尔芯片(60)固接于底座(10)上;所述动子模块组件(20)设置于底座(10)内,且动子模块组件(20)位于第一组线圈(40)与第二组线圈(50)的正上方且间隔设置,且所述第一组线圈(40)与第二组线圈(50)及霍尔芯片(60)构成闭环控制模块;所述动子模块组件(20)的拐角处与挂钩组件(30)弹性连接,且所述闭环控制模块控制动子模块组件(20)在X-Y轴向的位置驱动调整。
- 如权利要求1所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第一组线圈(40)与第二组线圈(50)结构相同,且第一组线圈(40)包括第一线圈及与所述第一线圈相对设置的第二线圈,所述第二线圈中设置有霍尔芯片(60)。
- 如权利要求1所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第二组线圈(50)包括第三线圈及与所述第三线圈相对设置的第四线圈,所述第四线圈中设置有霍尔芯片(60)。
- 如权利要求2或3所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第二线圈与第四线圈相邻设置,所述第一线圈与第三线圈相邻设置,且所述第一线圈与第二线圈串联连接,所述第三线圈与第四线圈串联连接。
- 如权利要求1所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述动子模块组件(20)包括限位板(21)、卡接于所述限位板(21)四边角处的支撑板(24)及卡接于限位板(21)上的第一组磁石组件(22)与第二磁石组件(23),所述第一组磁石组件(22)与第二磁石组件(23)相邻设置于限位板(21)上。
- 如权利要求5所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第一组磁石组件(22)包括第一磁石件及与所述第一磁石件相对设置的第二磁石件,其中,所述第一磁石件卡接于限位板(21)边沿处,所述第二磁石件卡接于限位板(21)与第一磁石件相对的边沿处。
- 如权利要求5所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第二磁石组件(23)包括第三磁石件及与所述第三磁石件相对设置的第四磁石件,其中,所述第三磁石件卡接于限位板(21)边沿处,所述第四磁石件卡接于限位板(21)与第三磁石件相对的边沿处。
- 如权利要求6或7所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第一磁石件与第四磁石件相邻设置,且所述第二磁石件与第三磁石件相邻设置,且第一磁石件、第二磁石件、第三磁石件及第四磁石件均位于限位板(21)边沿中间位置处。
- 如权利要求8或4所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,第一磁石件、第二磁石件、第三磁石件及第四磁石件分别依次间隔设置于第一线圈、第二线圈、第 三线圈及第四线圈的正上方,且第一磁石件、第二磁石件、第三磁石件及第四磁石件均分别至少包括有两个磁石。
- 如权利要求5所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述限位板(21)的四个边角处分别一体式连接有支撑延长板,所述支撑延长板与支撑板(24)相匹配,且所述支撑延长板包括第一延伸边、与所述第一延伸边一体式连接的第二延伸边及与所述第二延伸边一体式连接的第三延伸边。
- 如权利要求10所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第一延伸边固接有第一卡接条(27),所述第三延伸边上固接有第二卡接条(28),所述第一卡接条(27)与第二卡接条(28)用于卡接支撑板(24)。
- 如权利要求5所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述支撑板(24)靠近底座(10)的表面上固接有滚珠固定座,所述滚珠固定座中设置有滚珠(26),且所述滚珠(26)最高点凸出滚珠固定座的端面。
- 如权利要求12或10所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述支撑板(24)一侧边上固接有弹簧连接勾(241),所述弹簧连接勾(241)位于限位板(21)的第三延伸边处且延伸出第三延伸边。
- 如权利要求1所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述挂钩组件(30)包括固定于底座(10)上的弹簧固定板(31)、固定于所述弹簧固定板(31)上的弹簧固定环(32)及连接于所述弹簧固定环(32)上的弹簧(33),所述弹簧(33)远离弹簧固定环(32)上的一端连接于弹簧连接勾(241)。
- 如权利要求14所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述弹簧固定板(31)与底座(10)的拐角相匹配,且底座(10)的四个拐角处均固接有挂钩组件(30),所述底座(10)通过挂钩组件(30)中的弹簧(33)与动子模块组件(20)弹性连接。
- 如权利要求4所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第一线圈与第二线圈串联连接形成第一电流回路,所述第三线圈与第四线圈串联连接形成第二电流回路,且第一线圈或第二线圈的端线连接有两个端脚,第三线圈或第四线圈的端线连接有两个端脚。
- 如权利要求1所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述霍尔芯片(60)上连接有四个端脚,所述第一组线圈(40)与第二组线圈(50)中的霍尔芯片(60)上的端脚、第一线圈或第二线圈及第三线圈或第四线圈的端脚的延展线路均一体式嵌埋于底座(10)内。
- 如权利要求5或10所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述限位板(21)的四个边角的第一延伸边与第三延伸边分别与底座(10)相对的边之间设置有第一距离,所述第一距离用于动子模块组件(20)与底座(10)之间移动的补偿位移。
- 如权利要求18所述的一种用于移动图像传感器视线变焦功能的驱动装置,其特征在于,所述第一距离为0.2-0.4mm。
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