WO2022000548A1 - 镜头驱动装置 - Google Patents

镜头驱动装置 Download PDF

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Publication number
WO2022000548A1
WO2022000548A1 PCT/CN2020/101496 CN2020101496W WO2022000548A1 WO 2022000548 A1 WO2022000548 A1 WO 2022000548A1 CN 2020101496 W CN2020101496 W CN 2020101496W WO 2022000548 A1 WO2022000548 A1 WO 2022000548A1
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WO
WIPO (PCT)
Prior art keywords
driving device
housing
lens barrel
lens
magnetic steel
Prior art date
Application number
PCT/CN2020/101496
Other languages
English (en)
French (fr)
Inventor
史卫领
郭顺
王洪兴
Original Assignee
诚瑞光学(常州)股份有限公司
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Publication date
Application filed by 诚瑞光学(常州)股份有限公司 filed Critical 诚瑞光学(常州)股份有限公司
Publication of WO2022000548A1 publication Critical patent/WO2022000548A1/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
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • 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
    • 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
    • G03B5/06—Swinging lens about normal to the optical axis
    • 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
    • G03B5/08—Swing backs

Definitions

  • the utility model relates to the field of optical anti-shake, in particular to a lens driving device.
  • the shake compensation of the lens driving device of the existing optical device generally only has the shake compensation in the yaw and pitch directions, and has no shake compensation function in the roll direction.
  • the purpose of the utility model is to provide a lens driving device which can realize anti-shake in the rolling direction.
  • a lens driving device the lens driving device comprises:
  • the lens barrel is used to mount the lens
  • the lens barrel is installed in the first casing
  • the first driving device drives the lens barrel to move or rotate relative to the first casing
  • the first casing is installed in the second casing
  • a second driving device arranged between the first housing and the second housing, the second driving device drives the first housing and the lens barrel to move relative to the second housing or turn;
  • One of the first driving device and the second driving device is used to realize the movement or rotation of the lens barrel in the plane where the optical axis is located, and the other is used to realize that the lens barrel is perpendicular to the optical axis. Movement or rotation in a plane.
  • the second driving device is used to realize the movement or rotation of the lens barrel in a plane perpendicular to the optical axis
  • the second driving device includes a second magnetic steel component and a second coil component arranged oppositely
  • One of the second magnetic steel assembly and the second coil assembly is fixed to the first casing, and the other is fixed to the second casing
  • the second magnetic steel assembly includes at least one magnetic steel
  • the second coil component includes at least one coil opposite to the magnetic steel
  • the magnetic steel in the second magnetic steel component and the coil in the second coil component are arranged opposite to each other and in a dislocation.
  • the number of coils contained in the second coil assembly is one more or one less than the number of magnetic steels contained in the second magnetic steel assembly.
  • the first driving device is used to realize the movement or rotation of the lens barrel in the plane where the optical axis is located, and the first driving device includes a first magnetic steel component and a first coil component that are arranged opposite to each other.
  • One of the first magnetic steel assembly and the first coil assembly is fixed to the first housing, and the other is fixed to the lens barrel.
  • the second magnetic steel assembly includes two spaced apart magnetic steels, the second coil assembly includes a coil, and the magnetization directions of the two spaced apart magnetic steels are opposite and perpendicular to the first housing.
  • the first housing includes a first bottom plate, a first cover plate disposed opposite to the first bottom plate, and a first bottom plate and the first cover plate connected to the first cover plate and extending along the direction of the optical axis a side plate, the first cover plate is provided with a first light-passing hole penetrating the first cover plate;
  • the second housing includes a second bottom plate, a second cover plate opposite to the second bottom plate, and a second side plate connecting the second bottom plate and the second cover plate and extending along the optical axis direction,
  • the second cover plate is provided with a second light-passing hole penetrating the second cover plate;
  • the second magnetic steel assembly is attached to the first side plate in parallel, the second coil assembly is opposite to the second magnetic steel assembly, and is attached to the second side plate in parallel;
  • the lens driving device further includes a first fulcrum structure, the first fulcrum structure is connected between the first base plate and the second base plate, and is used for supporting the first housing to move or rotate.
  • the first fulcrum structure includes a first spherical convex portion, the first spherical convex portion is connected to the first bottom plate, and the second shell is provided with a first spherical convex portion matched with the first spherical convex portion.
  • the first rolling groove, the first ball convex portion is accommodated in the first rolling groove, and the first ball convex portion can move or rotate in the first rolling groove.
  • the lens driving device further includes a first elastic structure, the first elastic structure is connected between the first side plate and the second side plate, and the first elastic structure is used to support the first side plate case.
  • the lens driving device further includes a second fulcrum structure, the second fulcrum structure is connected between the first bottom plate and the lens barrel, and is used to support the second housing to move or rotate.
  • the first fulcrum structure includes a second spherical convex portion, the second spherical convex portion is connected to the lens barrel, and the first bottom plate is provided with a second spherical convex portion matched with the second spherical convex portion.
  • a rolling groove, the second ball convex portion is accommodated in the second rolling groove, and the second ball convex portion can move or rotate in the second rolling groove.
  • the beneficial effect of the present invention is that: the application is provided with a first driving device and a second driving device, the second driving device can drive the first housing to move or rotate relative to the second housing, and the first driving device can drive the lens barrel to move relative to the second housing.
  • the first housing moves or rotates, and the first driving device and the second driving device work together to realize that the lens has the shake compensation function in the yaw, pitch and roll directions at the same time, and the roll is independent of the pitch and yaw.
  • FIG. 1 is a schematic structural diagram of a lens driving device provided by an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of the lens driving device in FIG. 1 with the second casing removed;
  • FIG. 3 is a schematic cross-sectional view of FIG. 1 along A-A;
  • Figures 4 and 5 respectively show the rotation of the first housing in two opposite directions from the top views of the second cover plate removed by the lens driving device.
  • lens drive device 1, lens barrel; 2, first housing; 3, second housing; 4, second drive device; 41, second magnetic steel assembly; 42, second coil assembly; 411, magnetic Steel; 421, coil; 21, the first bottom plate; 22, the first side plate; 23, the first cover plate; 230, the first light hole; 31, the second bottom plate; 32, the second side plate; 33, the first two cover plates; 330, the second light-passing hole; 5, the first fulcrum structure; 51, the first connecting piece; 52, the first ball convex part; 310, the first rolling groove; 6, the first elastic structure; 61, 62, second connection part; 63, elastic connecting bar; 7, first drive device; 71, first magnetic steel assembly; 72, first coil assembly; 8, second fulcrum structure; 81, first Two connecting pieces; 82, the second ball convex part; 210, the second rolling groove; 9, the second elastic structure.
  • a lens driving device 100 the lens driving device 100 includes:
  • Lens barrel 1 the lens barrel 1 is used to install the lens
  • the lens barrel 1 is installed in the first casing 2;
  • the first driving device 7 drives the lens barrel 1 to move or rotate relative to the first casing 2;
  • the first casing 2 is installed in the second casing 3;
  • a second driving device 4 is arranged between the first housing 2 and the second housing 3, and the second driving device 4 drives the first housing 2 and the lens barrel 1 to face the The second housing 3 moves or rotates;
  • One of the first driving device 7 and the second driving device 4 is used to realize the movement or rotation of the lens barrel 1 in the plane where the optical axis is located, and the other is used to realize the vertical movement of the lens barrel 1 . Movement or rotation in the plane of the optical axis.
  • the second housing 3 is generally fixedly connected to the electronic device, the second driving device 4 can drive the first housing 2 to move or rotate relative to the second housing 3, and the first driving device 7 can drive the lens barrel 1 relative to the first housing 2
  • the first driving device 7 and the second driving device 4 work together to realize that the lens has the shake compensation function in the yaw, pitch and roll directions at the same time, and the roll is independent of the pitch and yaw.
  • the second driving device 4 is used to realize the movement or rotation of the lens barrel 1 in a plane perpendicular to the optical axis, and the second driving device 4 includes a second magnetic steel assembly arranged oppositely 41 and the second coil assembly 42, the second magnetic steel assembly 41 is fixed to the first casing 2, and the second coil assembly 42 is fixed to the second casing 3, of course, in other optional
  • the second magnetic steel assembly 41 may also be fixed to the second casing 3 and the second coil assembly 42 may be fixed to the first casing 2, and the second magnetic steel assembly 41
  • At least one magnetic steel 411 is included, the second coil assembly 42 includes at least one coil 421, and the number of coils 421 included in the second coil assembly 42 is larger than the number of the magnetic steels 411 included in the second magnetic steel assembly 41 The number is one more or one less, and the magnetic steel 411 and the coil 421 are dislocated.
  • the second magnetic steel assembly 41 includes two juxtaposed magnetic steels 411
  • the second coil assembly 42 includes a coil 421
  • the coil 421 is configured to face the two juxtaposed magnetic steels 411 .
  • the gap position Further, the magnetizing directions of the two juxtaposed magnetic steels 411 are opposite and perpendicular to the first housing 2 , and the magnetizing directions of the magnetic steels 411 can be referred to as shown in FIG. 4 and FIG. 5 .
  • a magnetic field approximately perpendicular to the coil 421 is generated at 421 .
  • the second coil assembly 42 interacts with the second magnetic steel assembly 41 to generate a tangential torque force parallel to the plane where the second magnetic steel assembly 41 is located, thereby driving the first housing 2 Move or rotate in the plane (XY plane) perpendicular to the optical axis (Z axis), or drive the first housing 2 to roll around the optical axis (Z axis).
  • FIG. 3 , FIG. 4 and FIG. 5 wherein FIG. 4 and FIG. 5 respectively illustrate the rotation of the first housing 2 in two opposite directions.
  • the first driving device 7 is used to realize the movement or rotation of the lens barrel 1 in the plane where the optical axis is located, and the first driving device 7 includes a first magnetic steel assembly 71 disposed opposite to each other. and the first coil assembly 72, the first magnetic steel assembly 71 is fixed to the lens barrel 1 and the first coil assembly 72 is fixed to the first housing 2, of course, in other optional embodiments , the first magnetic steel assembly 71 may also be fixed to the first housing 2 and the first coil assembly 72 to the lens barrel 1 .
  • the first coil assembly 72 When the first coil assembly 72 is energized, the first coil assembly 72 interacts with the first magnetic steel assembly 71 , thereby driving the yaw or pitch of the lens barrel 1 relative to the first housing 2 .
  • the first magnetic steel component 71 and the first coil component 72 are provided as a pair of oppositely arranged magnetic steel and coils.
  • the first housing 2 includes a first bottom plate 21 , a first cover plate 23 opposite to the first bottom plate 21 , and a first cover plate 23 connecting the first bottom plate 21 and the first cover plate 23 along the optical axis direction the extended first side plate 22, the first cover plate 23 is provided with a first light-passing hole 230 passing through the first cover plate 23;
  • the second casing 3 includes a second bottom plate 31 , a second cover plate 33 opposite to the second bottom plate 31 , and a second cover plate 33 connecting the second bottom plate 31 and the second cover plate 33 and extending along the optical axis direction the second side plate 32, the second cover plate 33 is provided with a second light-passing hole 330 passing through the second cover plate 33;
  • the second magnetic steel assembly 41 is attached to the first side plate 22 in parallel, and the second coil assembly 42 is opposite to the second magnetic steel assembly 41 and attached to the second side plate 32 in parallel;
  • the lens driving device 100 further includes a first fulcrum structure 5 , the first fulcrum structure 5 is connected between the first base plate 21 and the second base plate 31 for supporting the first housing 2 to move or turn.
  • the first fulcrum structure 5 includes a first spherical convex portion 52 , the first spherical convex portion 52 is connected to the first bottom plate 21 , and the second bottom plate 31 is provided with the first spherical convex portion
  • the first rolling groove 310 matched with 52 , the first ball convex portion 52 can move or rotate in the first rolling groove 310 .
  • the first rolling groove 310 can be a bar-shaped groove, so, under the driving of the second driving device 4, the first housing 2 can move along the first rolling groove 310, and the first rolling groove 310 can also be a hemispherical groove, so , under the driving of the second driving device 4 , the first casing 2 can rotate relative to the second casing 3 .
  • the first ball convex portion 52 cooperates with the first rolling groove 310 to make the rotation of the first housing 2 more stable.
  • the first fulcrum structure 5 further includes a first connecting member 51 connected between the first spherical convex portion 52 and the first bottom plate 21 .
  • the lens driving device 100 further includes a first elastic structure 6, the first elastic structure 6 is connected between the first side plate 22 and the second side plate 32, and the first elastic structure 6 is used for supporting the first shell 2 .
  • the first elastic structure 6 includes a first connecting portion 61 connected to the first side plate 22 , a second connecting portion 62 connected to the second side plate 32 , and obliquely connected to the first connecting portion 61 and the second connecting portion 62 .
  • Elastic connecting strips 63 between the connecting parts 62 .
  • the elastic connecting bar 63 is connected obliquely between the first connecting portion 61 and the second connecting portion 62 , plays the role of connecting the first side plate 22 and the second side plate 32 , and provides a restoring force for the movement of the first casing 2 .
  • the first driving device 7 is connected between the first side plate 22 and the lens barrel 1 .
  • the lens driving device 100 further includes a second fulcrum structure 8 connected between the first bottom plate 21 and the lens barrel 1 , and the second fulcrum structure 8 is used to support the lens barrel 1 relative to the other side.
  • the first housing 2 moves or rotates.
  • the second fulcrum structure 8 includes a second spherical convex portion 82 , the second spherical convex portion 82 is connected to the side of the second connecting member 81 away from the lens barrel 1 , and the first bottom plate 21 is provided with a The second rolling groove 210 matched with the second ball convex portion 82 .
  • the second rolling groove 210 can be a bar-shaped groove, so that the lens barrel 1 can move along the second rolling groove 210 under the driving of the first driving device 7 , and the second rolling groove 210 can also be a hemispherical groove. Under the driving of the first driving device 7 , the lens barrel 1 can rotate relative to the second casing 3 .
  • the second ball convex portion 82 cooperates with the second rolling groove 210 to make the rotation of the camera more stable.
  • the second fulcrum structure 8 further includes a second connecting member 81 connected between the second spherical convex portion 82 and the lens barrel 1 .
  • the lens driving device 100 further includes a second elastic structure 9 disposed between the lens barrel 1 and the first side plate 22.
  • the second elastic structure 9 is used to support the lens barrel 1 relative to the first housing 2.
  • the second elastic structure 9 is connected to the lens barrel 1.
  • the first elastic structure 6 is similar in structure.
  • the first shell 2 and the second shell 3 are formed as hollow quadrangular prisms
  • the first side plate 22 is surrounded by four sides of the first shell 2
  • the second The side plates 32 are surrounded by four sides of the second casing 3
  • the second driving devices 4 are arranged in four and equally spaced on the four sides of the first casing 2
  • the The second drive device 4 is centrally arranged between the four sides of the second housing 3 .
  • the four groups of the second driving devices 4 cooperate with each other to jointly provide the force for driving the first casing 2 to move, so that the first casing 2 is subjected to forces in all directions, and the movement is more stable.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Lens Barrels (AREA)

Abstract

一种镜头驱动装置，镜头驱动装置包括镜筒、第一壳体、第一驱动装置、第二壳体和第二驱动装置，镜筒用于安装镜头，镜筒安装于第一壳体内，设置于镜筒和第一壳体之间的第一驱动装置，第一驱动装置驱动镜筒相对第一壳体移动或转动；第一壳体安装于第二壳体内；设置于第一壳体和第二壳体之间的第二驱动装置，第二驱动装置驱动第一壳体和镜筒相对第二壳体移动或转动；第一驱动装置和第二驱动装置中的其一用于实现镜筒在光轴所在平面内的移动或转动，另一用于实现镜筒在垂直于光轴所在平面内的移动或转动。第一驱动装置和第二驱动装置共同作用实现镜头各个方向的防抖。

Description

镜头驱动装置 技术领域
本实用新型涉及光学防抖领域，特别涉及一种镜头驱动装置。
 技术问题
现有光学装置的镜头驱动装置的抖动补偿一般只有偏摆、俯仰方向上的抖动补偿，没有滚动方向的抖动补偿功能。
因此，有必要提供一种能在滚动方向实现防抖的镜头驱动装置。
 技术解决方案
本实用新型的目的在于提供一种能在滚动方向实现防抖的镜头驱动装置。
本实用新型的技术方案如下：
一种镜头驱动装置，所述镜头驱动装置包括：
镜筒，所述镜筒用于安装镜头；
第一壳体，所述镜筒安装于所述第一壳体内；
设置于所述镜筒和所述第一壳体之间的第一驱动装置，所述第一驱动装置驱动所述镜筒相对所述第一壳体移动或转动；
第二壳体，所述第一壳体安装于所述第二壳体内；
设置于所述第一壳体和所述第二壳体之间的第二驱动装置，所述第二驱动装置驱动所述第一壳体和所述镜筒相对所述第二壳体移动或转动；
所述第一驱动装置和所述第二驱动装置中的其一用于实现所述镜筒在光轴所在平面内的移动或转动，另一用于实现所述镜筒在垂直于光轴所在平面内的移动或转动。
进一步地，所述第二驱动装置用于实现所述镜筒在垂直于光轴所在平面内的移动或转动，所述第二驱动装置包括相对设置的第二磁钢组件和第二线圈组件，所述第二磁钢组件和所述第二线圈组件中其一固定于所述第一壳体，另一固定于所述第二壳体，所述第二磁钢组件包括至少一磁钢，所述第二线圈组件包括至少一与所述磁钢相对的线圈，且所述第二磁钢组件中的磁钢与所述第二线圈组件中的线圈相对且错位设置。
进一步地，所述第二线圈组件所包含的线圈的数量比所述第二磁钢组件所包含的磁钢的数量多一个或少一个。
进一步地，所述第一驱动装置用于实现所述镜筒在光轴所在平面内的移动或转动，所述第一驱动装置包括正对设置的第一磁钢组件和第一线圈组件，所述第一磁钢组件和所述第一线圈组件中的其一固定于所述第一壳体，另一固定于所述镜筒。
进一步地，所述第二磁钢组件包括两间隔设置的磁钢，所述第二线圈组件包括一线圈，所述两间隔设置的磁钢充磁方向相反且垂直于所述第一壳体。
进一步地，所述第一壳体包括第一底板、与所述第一底板相对设置的第一盖板以及连接所述第一底板和所述第一盖板且沿光轴方向延伸的第一侧板，所述第一盖板上开设有贯穿所述第一盖板的第一通光孔；
所述第二壳体包括第二底板、与所述第二底板相对设置的第二盖板以及连接所述第二底板和所述第二盖板且沿光轴方向延伸的第二侧板，所述第二盖板上开设有贯穿所述第二盖板的第二通光孔；
所述第二磁钢组件平行贴设于所述第一侧板，所述第二线圈组件与所述第二磁钢组件相对，平行贴设于所述第二侧板；
所述镜头驱动装置还包括第一支点结构，所述第一支点结构连接于所述第一底板和所述第二底板之间，用于支撑所述第一壳体移动或转动。
进一步地，所述第一支点结构包括第一球凸部，所述第一球凸部连接于所述第一底板，所述第二壳体上开设有与所述第一球凸部配合的第一滚槽，所述第一球凸部收容于所述第一滚槽，所述第一球凸部可在所述第一滚槽内移动或转动。
进一步地，所述镜头驱动装置还包括第一弹性结构，所述第一弹性结构连接于所述第一侧板和第二侧板之间，所述第一弹性结构用于支撑所述第一壳体。
进一步地，所述镜头驱动装置还包括第二支点结构，所述第二支点结构连接于所述第一底板和所述镜筒之间，用于支撑所述第二壳体移动或转动。
进一步地，所述第一支点结构包括第二球凸部，所述第二球凸部连接于所述镜筒，所述第一底板上开设有与所述第二球凸部配合的第二滚槽，所述第二球凸部收容于所述第二滚槽，所述第二球凸部可在所述第二滚槽内移动或转动。
 有益效果
本实用新型的有益效果在于：本申请通过设置第一驱动装置和第二驱动装置，第二驱动装置可驱动第一壳体相对第二壳体移动或转动，第一驱动装置可驱动镜筒相对第一壳体移动或转动，第一驱动装置和第二驱动装置共同作用实现镜头同时具有偏摆、俯仰和滚动方向上的抖动补偿功能，且滚动独立于俯仰、偏摆。
 附图说明
图1为本实用新型实施例提供的镜头驱动装置的结构示意图；
图2为图1中镜头驱动装置去除第二壳体的结构示意图；
图3为图1沿A-A的剖面示意图；
图4和图5通过镜头驱动装置去除第二盖板的俯视图分别显示了第一壳体两种相反方向的转动。
图中：
100、镜头驱动装置；1、镜筒；2、第一壳体；3、第二壳体；4、第二驱动装置；41、第二磁钢组件；42、第二线圈组件；411、磁钢；421、线圈；21、第一底板；22、第一侧板；23、第一盖板； 230、第一通光孔；31、第二底板；32、第二侧板；33、第二盖板； 330、第二通光孔；5、第一支点结构；51、第一连接件；52、第一球凸部；310、第一滚槽；6、第一弹性结构；61、第一连接部；62、第二连接部；63、弹性连接条；7、第一驱动装置；71、第一磁钢组件；72、第一线圈组件；8、第二支点结构；81、第二连接件；82、第二球凸部；210、第二滚槽；9、第二弹性结构。
 本发明的实施方式
下面结合附图和实施方式对本实用新型作进一步说明。
请参照图1-图5，一种镜头驱动装置100，所述镜头驱动装置100包括：
镜筒1，所述镜筒1用于安装镜头；
第一壳体2，所述镜筒1安装于所述第一壳体2内；
设置于所述镜筒1和所述第一壳体2之间的第一驱动装置7，所述第一驱动装置7驱动所述镜筒1相对所述第一壳体2移动或转动；
第二壳体3，所述第一壳体2安装于所述第二壳体3内；
设置于所述第一壳体2和所述第二壳体3之间的第二驱动装置4，所述第二驱动装置4驱动所述第一壳体2和所述镜筒1相对所述第二壳体3移动或转动；
所述第一驱动装置7和所述第二驱动装置4中的其一用于实现所述镜筒1在光轴所在平面内的移动或转动，另一用于实现所述镜筒1在垂直于光轴所在平面内的移动或转动。
第二壳体3一般固定连接于电子设备上，第二驱动装置4可驱动第一壳体2相对第二壳体3移动或转动，第一驱动装置7可驱动镜筒1相对第一壳体2移动或转动，第一驱动装置7和第二驱动装置4共同作用实现镜头同时具有偏摆、俯仰和滚动方向上的抖动补偿功能，且滚动独立于俯仰、偏摆。
在本实施方式中，所述第二驱动装置4用于实现所述镜筒1在垂直于光轴所在平面内的移动或转动，所述第二驱动装置4包括相对设置的第二磁钢组件41和第二线圈组件42，所述第二磁钢组件41固定于所述第一壳体2，所述第二线圈组件42固定于所述第二壳体3，当然，在其它可选的实施方式中，也可以是所述第二磁钢组件41固定于所述第二壳体3以及所述第二线圈组件42固定于所述第一壳体2，所述第二磁钢组件41包括至少一个磁钢411，所述第二线圈组件42包括至少一个线圈421，所述第二线圈组件42所包含的线圈421的数量比所述第二磁钢组件41所包含的磁钢411的数量多一个或少一个，且所述磁钢411与所述线圈421错位设置。如图2所示，所述第二磁钢组件41包括两个并列的磁钢411，所述第二线圈组件42包括一个线圈421，所述线圈421配置为正对两个并列的磁钢411的间隙位置处。进一步地，两个并列的磁钢411充磁方向相反且垂直于所述第一壳体2，磁钢411充磁方向可参照图4和图5所示，两个并列的磁钢411在线圈421处产生大致垂直于线圈421的磁场。
当线圈421通电时，根据左手定则，第二线圈组件42与第二磁钢组件41相互作用，产生平行于第二磁钢组件41所在平面的切向转矩力，从而驱动第一壳体2在垂直于光轴（Z轴）所在的平面（XY平面）内移动或转动，或者说是驱动第一壳体2绕光轴（Z轴）的滚动。具体请参照图3、图4和图5，其中图4和图5分别示意第一壳体2沿两种相反方向的转动。
在本实施方式中，所述第一驱动装置7用于实现所述镜筒1在光轴所在平面内的移动或转动，所述第一驱动装置7包括正对设置的第一磁钢组件71和第一线圈组件72，所述第一磁钢组件71固定于所述镜筒1以及所述第一线圈组件72固定于所述第一壳体2，当然，在其它可选的实施方式中，所述第一磁钢组件71也可以是固定于所述第一壳体2以及所述第一线圈组件72固定于所述镜筒1。
对第一线圈组件72通电，第一线圈组件72和第一磁钢组件71相互作用，进而驱动镜筒1相对第一壳体2的偏摆或俯仰。具体的，所述第一磁钢组件71和第一线圈组件72设置为一对相对设置的磁钢与线圈。
优选所述第一壳体2包括第一底板21、与所述第一底板21相对设置的第一盖板23以及连接所述第一底板21和所述第一盖板23且沿光轴方向延伸的第一侧板22，所述第一盖板23上开设有贯穿所述第一盖板23的第一通光孔230；
所述第二壳体3包括第二底板31、与所述第二底板31相对设置的第二盖板33以及连接所述第二底板31和所述第二盖板33且沿光轴方向延伸的第二侧板32，所述第二盖板33上开设有贯穿所述第二盖板33的第二通光孔330；
所述第二磁钢组件41平行贴设于所述第一侧板22，所述第二线圈组件42与所述第二磁钢组件41相对，平行贴设于所述第二侧板32；
所述镜头驱动装置100还包括第一支点结构5，所述第一支点结构5连接于所述第一底板21和所述第二底板31之间，用于支撑所述第一壳体2移动或转动。
优选所述第一支点结构5包括第一球凸部52，所述第一球凸部52连接于所述第一底板21，所述第二底板31上开设有与所述第一球凸部52配合的第一滚槽310，所述第一球凸部52可在所述第一滚槽310内移动或转动。第一滚槽310可以为条形槽，如此，在第二驱动装置4的驱动下，第一壳体2可沿第一滚槽310移动，第一滚槽310也可以为半球形槽，如此，在第二驱动装置4的驱动下，第一壳体2可相对第二壳体3转动。第一球凸部52和第一滚槽310配合，使得第一壳体2转动更平稳。
优选第一支点结构5还包括连接于第一球凸部52与第一底板21之间的第一连接件51。
优选所述镜头驱动装置100还包括第一弹性结构6，所述第一弹性结构6连接于所述第一侧板22和第二侧板32之间，所述第一弹性结构6用于支撑所述第一壳体2。
优选第一弹性结构6包括连接于所述第一侧板22的第一连接部61、连接于所述第二侧板32的第二连接部62和倾斜连接于第一连接部61和第二连接部62之间的弹性连接条63。弹性连接条63倾斜连接于第一连接部61和第二连接部62之间，起到连接第一侧板22和第二侧板32的作用，且为第一壳体2的运动提供回复力。
优选第一驱动装置7连接于所述第一侧板22和所述镜筒1之间。
优选所述镜头驱动装置100还包括和连接于所述第一底板21和所述镜筒1之间的第二支点结构8，所述第二支点结构8用于支撑所述镜筒1相对所述第一壳体2移动或转动。
优选第二支点结构8包括第二球凸部82，所述第二球凸部82连接于所述第二连接件81背离所述镜筒1的一侧，所述第一底板21上开设有与所述第二球凸部82配合的第二滚槽210。第二滚槽210可以为条形槽，如此，在第一驱动装置7的驱动下，镜筒1可沿第二滚槽210移动，第二滚槽210也可以为半球形槽，如此，在第一驱动装置7的驱动下，镜筒1可相对第二壳体3转动。第二球凸部82和第二滚槽210配合，使得摄像头的转动更平稳。
优选第二支点结构8还包括连接于第二球凸部82与镜筒1之间的第二连接件81。
镜头驱动装置100还包括设于镜筒1和第一侧板22之间的第二弹性结构9，第二弹性结构9用于相对第一壳体2支撑镜筒1，第二弹性结构9与第一弹性结构6结构相似。
优选第所述第一壳体2和所述第二壳体3设置为中空的四棱柱，所述第一侧板22围设成所述第一壳体2的四个侧面，所述第二侧板32围设成所述第二壳体3的四个侧面；所述第二驱动装置4设置为四个且等间距的分别设置于所述第一壳体2的四个侧面和所述第二壳体3的四个侧面之间且所述第二驱动装置4居中设置。四组所述第二驱动装置4相互配合，共同提供驱动第一壳体2运动的力，使得第一壳体2受到各个方向的力，运动更稳定。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种镜头驱动装置，其特征在于，所述镜头驱动装置包括：
    镜筒，所述镜筒用于安装镜头；
    第一壳体，所述镜筒安装于所述第一壳体内；
    设置于所述镜筒和所述第一壳体之间的第一驱动装置，所述第一驱动装置驱动所述镜筒相对所述第一壳体移动或转动；
    第二壳体，所述第一壳体安装于所述第二壳体内；
    设置于所述第一壳体和所述第二壳体之间的第二驱动装置，所述第二驱动装置驱动所述第一壳体和所述镜筒相对所述第二壳体移动或转动；
    所述第一驱动装置和所述第二驱动装置中的其一用于实现所述镜筒在光轴所在平面内的移动或转动，另一用于实现所述镜筒在垂直于光轴所在平面内的移动或转动。
  2. 根据权利要求1所述的镜头驱动装置，其特征在于：所述第二驱动装置用于实现所述镜筒在垂直于光轴所在平面内的移动或转动，所述第二驱动装置包括相对设置的第二磁钢组件和第二线圈组件，所述第二磁钢组件和所述第二线圈组件中其一固定于所述第一壳体，另一固定于所述第二壳体，所述第二磁钢组件包括至少一磁钢，所述第二线圈组件包括至少一与所述磁钢相对的线圈，所述第二磁钢组件中的磁钢与所述第二线圈组件中的线圈错位设置。
  3. 根据权利要求2所述的镜头驱动装置，其特征在于：所述第二线圈组件所包含的线圈的数量比所述第二磁钢组件所包含的磁钢的数量多一个或少一个。
  4. 根据权利要求1所述的镜头驱动装置，其特征在于：所述第一驱动装置用于实现所述镜筒在光轴所在平面内的移动或转动，所述第一驱动装置包括正对设置的第一磁钢组件和第一线圈组件，所述第一磁钢组件和所述第一线圈组件中的其一固定于所述第一壳体，另一固定于所述镜筒。
  5. 根据权利要求3所述的镜头驱动装置，其特征在于：所述第二磁钢组件包括两间隔设置的磁钢，所述第二线圈组件包括一线圈，所述两间隔设置的磁钢充磁方向相反且垂直于所述第一壳体。
  6. 根据权利要求2所述的镜头驱动装置，其特征在于：所述第一壳体包括第一底板、与所述第一底板相对设置的第一盖板以及连接所述第一底板和所述第一盖板且沿光轴方向延伸的第一侧板，所述第一盖板上开设有贯穿所述第一盖板的第一通光孔；
    所述第二壳体包括第二底板、与所述第二底板相对设置的第二盖板以及连接所述第二底板和所述第二盖板且沿光轴方向延伸的第二侧板，所述第二盖板上开设有贯穿所述第二盖板的第二通光孔；
    所述第二磁钢组件平行贴设于所述第一侧板，所述第二线圈组件与所述第二磁钢组件相对，平行贴设于所述第二侧板；
    所述镜头驱动装置还包括第一支点结构，所述第一支点结构连接于所述第一底板和所述第二底板之间，用于支撑所述第一壳体移动或转动。
  7. 根据权利要求6所述的镜头驱动装置，其特征在于：所述第一支点结构包括第一球凸部，所述第一球凸部连接于所述第一底板，所述第二壳体上开设有与所述第一球凸部配合的第一滚槽，所述第一球凸部收容于所述第一滚槽，所述第一球凸部可在所述第一滚槽内移动或转动。
  8. 根据权利要求6所述的镜头驱动装置，其特征在于：所述镜头驱动装置还包括第二支点结构，所述第二支点结构连接于所述第一底板和所述镜筒之间，用于支撑所述第二壳体移动或转动。
  9. 根据权利要求8所述的镜头驱动装置，其特征在于：所述第二支点结构包括第二球凸部，所述第二球凸部连接于所述镜筒，所述第一底板上开设有与所述第二球凸部配合的第二滚槽，所述第二球凸部收容于所述第二滚槽，所述第二球凸部可在所述第二滚槽内移动或转动。
  10. 根据权利要求6所述的镜头驱动装置，其特征在于：所述镜头驱动装置还包括第一弹性结构，所述第一弹性结构连接于所述第一侧板和第二侧板之间，所述第一弹性结构用于支撑所述第一壳体。
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CN105824165A (zh) * 2015-01-26 2016-08-03 日本电产三协株式会社 带抖动校正功能光学单元
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