WO2022036810A1 - Lens module - Google Patents

Lens module Download PDF

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Publication number
WO2022036810A1
WO2022036810A1 PCT/CN2020/118356 CN2020118356W WO2022036810A1 WO 2022036810 A1 WO2022036810 A1 WO 2022036810A1 CN 2020118356 W CN2020118356 W CN 2020118356W WO 2022036810 A1 WO2022036810 A1 WO 2022036810A1
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WO
WIPO (PCT)
Prior art keywords
lens
pin
bracket
fixed
shape memory
Prior art date
Application number
PCT/CN2020/118356
Other languages
French (fr)
Chinese (zh)
Inventor
李林珍
卢继亮
李刚
张晋
Original Assignee
诚瑞光学(深圳)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 诚瑞光学(深圳)有限公司 filed Critical 诚瑞光学(深圳)有限公司
Publication of WO2022036810A1 publication Critical patent/WO2022036810A1/en

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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
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • 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

Definitions

  • the invention relates to the technical field of lens optical imaging, in particular to a lens module.
  • the high-performance lens module generally has Auto Focusing (AF) and Optical Image Stabilization (OIS). Stabilization, OIS).
  • AF Auto Focusing
  • OIS Optical Image Stabilization
  • the high-performance lens module moves the lens along the optical axis direction of the lens during autofocus, and moves the lens along the direction perpendicular to the optical axis of the lens when realizing the optical anti-shake function.
  • the lens module in the related art usually drives the automatic focusing and optical image stabilization of the lens through an electromagnetic structure.
  • the electromagnetic structure of such a lens module not only needs to occupy a large space of the module, but also has a complex structure and is susceptible to electromagnetic wave interference.
  • the purpose of the present invention is to provide a lens module, which not only has a simple structure, no magnetic interference, can greatly save the space of the module, but also can provide a larger space in a limited space compared with the electromagnetic structure. driving force.
  • the lens module provided by the present invention includes a driving device, a bottom plate, an intermediate bracket and a lens bracket for installing the lens, which are arranged at intervals along the optical axis direction of the lens.
  • the driving device includes A pair of first shape memory alloy wires at both ends of the first diagonal and driving the lens holder to rotate relative to the second pin and the intermediate holder, and two ends of the second diagonal and drive a pair of second shape memory alloy wires that rotate relative to the first pin and the base plate around the lens bracket and the intermediate bracket.
  • a position corresponding to the first pin of the intermediate bracket is provided with a first hole for inserting the first pin
  • a position corresponding to the second pin of the lens bracket is provided with a hole for insertion of the first pin.
  • the second hole into which the second pin is inserted, the inner wall of the first hole and the inner wall of the second hole are concave spherical surfaces, and the first pin and the second pin are respectively connected to the first hole.
  • the end abutting against the second hole is a convex spherical surface, the diameter of the first hole is larger than the outer diameter of the first pin, and the diameter of the second hole is larger than the outer diameter of the second pin.
  • the first shape memory alloy wire and the second shape memory alloy wire are the same, including two ends fixed on the base plate and a driving end fixed on the lens bracket and connecting the ends and an extension of the drive end.
  • the bottom plate comprises a pair of opposite and spaced first side edges and a pair of second side edges connected to the first side edges and spaced apart, the first shape memory alloy wire or the second One end of the shape memory alloy wire is fixed on the first side edge, and the other end is fixed on the second side edge adjacent to the first side edge.
  • the end is fixed on the base plate by a wire binding clip.
  • opposite ends of the lens holder along the first diagonal line and opposite ends along the second diagonal line are provided with wire grooves, and the wire grooves are located at the lens holder away from the On one side of the bottom plate, the driving end is located in the wire groove.
  • a first restoring elastic sheet is provided between the bottom plate and the intermediate bracket, and the first restoring elastic sheet includes a first connecting portion fixed on the intermediate support, fixed on the bottom plate and connected to the The second connecting part arranged at intervals from the first connecting part and the elastic part connecting the first connecting part and the second connecting part, when the lens bracket and the intermediate bracket wrap around the first pin and the bottom plate When the relative rotation occurs, the elastic portion is elastically deformed.
  • a second restoring elastic piece is arranged between the intermediate bracket and the lens support, and the second restoring elastic piece includes a first fixing portion fixed on the lens support, fixed on the intermediate support and connected with the lens support.
  • the second fixing part arranged at intervals on the first fixing part and the deforming part connecting the first fixing part and the second fixing part, when the lens holder is opposite to the intermediate holder around the second pin During rotation, the deformation portion is elastically deformed.
  • the first diagonal line is perpendicular to the second diagonal line.
  • the lens module provided by the present invention drives the lens support around the second pin and the intermediate support through a pair of first shape memory alloy wires disposed at both ends of the first diagonal. Relative rotation, and through a pair of second shape memory alloy wires arranged at both ends of the second diagonal, the lens bracket and the intermediate bracket are driven to rotate relative to the first pin and the bottom plate, not only can
  • the structure of the lens module is simplified, the space of the module is saved to avoid magnetic interference, and a larger driving force can be provided in a limited space compared with the electromagnetic structure.
  • FIG. 1 is a perspective view of a preferred embodiment of a lens module provided by the present invention.
  • FIG. 2 is a cross-sectional view of the lens module shown in FIG. 1 along the line A-A.
  • FIG. 3 is a cross-sectional view of the lens module shown in FIG. 2 along line B-B.
  • FIG. 4 is a schematic structural diagram of a part of the structure of the lens module shown in FIG. 1 .
  • FIG. 5 is an exploded view of the partial structure shown in FIG. 4 .
  • FIG. 6 is a schematic structural diagram of another angle of the partial structure shown in FIG. 5 .
  • the lens module includes a driving device 1 , a base plate 2 , an intermediate bracket 3 and a lens bracket 5 for installing the lens 4 , which are arranged at intervals along the optical axis direction of the lens 4 .
  • the first pair of Both ends of the diagonal line a are respectively provided with first pins 6 which are fixed on the bottom plate 2 and support the intermediate bracket 3, and both ends of the second diagonal line b are respectively provided with fixed on the intermediate bracket 3 and support
  • the second pin 7 of the lens holder 5 the driving device 1 includes two ends of the first diagonal line a and drives the lens holder 5 around the second pin 7 and the intermediate holder 3 A pair of first shape memory alloy wires 11 that rotate relative to each other and are arranged at both ends of the second diagonal line b and drive the lens holder 5 and the intermediate holder 3 to revolve around the first pin 6 and the A pair of second shape memory alloy wires 13 that rotate relative to the bottom plate 2 .
  • the lens holder 5 When a pair of the first shape memory alloy wires 11 are not energized at the same time or are energized at the same time and the size of the energization is different, because the first shape memory alloy wires 11 are energized and contracted, the lens holder 5 is wound around the second pin 7 and the intermediate bracket 3 rotate relative to each other, and the lens bracket 5 can be rotated to a designated position by adjusting the magnitude of the current.
  • the second shape memory alloy wires 13 When a pair of the second shape memory alloy wires 13 are not energized at the same time or are energized at the same time and the size of the energization is different, the second shape memory alloy wires 13 are energized and contracted, so that the lens holder 5 and the intermediate holder 3 Relative rotation occurs around the first pin 6 and the base plate 2, and the lens holder 5 and the intermediate holder 3 can be rotated to a designated position by adjusting the magnitude of the current.
  • a first hole 31 into which the first pin 6 is inserted is provided at a position of the intermediate bracket 3 corresponding to the first pin 6 , and the lens bracket 5 and the second pin are provided with a first hole 31 .
  • 7 is provided with a second hole 51 in which the second pin 7 is inserted, the inner wall of the first hole 31 and the inner wall of the second hole 51 are concave spherical surfaces, the first pin 6 and The ends of the second pin 7 abutting against the first hole 31 and the second hole 51 respectively are convex spherical surfaces, wherein the diameter of the first hole 31 is larger than that of the first pin 6 .
  • the outer diameter of the second hole 51 is larger than the outer diameter of the second pin 7 .
  • the friction force between the second pin 7 and the inner wall of the second hole 51 can reduce the friction between the lens bracket 5 and the intermediate bracket 3 around the The friction force between the first pin 6 and the inner wall of the first hole 31 when the first pin 6 and the bottom plate 2 rotate relative to each other.
  • the first shape memory alloy wire 11 and the second shape memory alloy wire 13 are the same, and both include two ends 1A fixed on the bottom plate 2 and a drive fixed on the lens bracket 5 end 1B and an extension 1C connecting the end 1A and the driving end 1B.
  • the bottom plate 2 includes a pair of first side edges 21 opposite to each other and spaced apart and a pair of second side edges 23 connected to the first side edges 21 and spaced apart.
  • the first shape memory alloy One end 1A of the wire 11 or the second shape memory alloy wire 13 is fixed on the first side 21 , and the other end 1A is fixed on the second side adjacent to the first side 21 Side 23.
  • the end 1A is fixed on the base plate 2 by a wire binding clip 8 .
  • the shape memory alloy wire can be electrically connected to the power source through the wire binding clip 8 .
  • the lens holder 5 has wire grooves 53 at opposite ends along the first diagonal line a and opposite ends along the second diagonal line b, and the wire grooves 53 are located in the The side of the lens holder 5 away from the bottom plate 2 is located, and the driving end 1B is located in the wire slot 53 .
  • the driving end 1B can be restricted from moving along the diagonal line (the first diagonal line a or the second diagonal line b).
  • a first return elastic piece 9 is provided between the bottom plate 2 and the intermediate bracket 3 , and the first return elastic piece 9 includes a first connecting portion 91 fixed on the intermediate bracket 3 and fixed on the The second connecting portion 93 on the bottom plate 2 and spaced apart from the first connecting portion 91 and the elastic portion 95 connecting the first connecting portion 91 and the second connecting portion 93, when the lens holder 5 When the intermediate bracket 3 rotates relative to the first pin 6 and the bottom plate 2 , the elastic portion 95 is elastically deformed.
  • the first restoring elastic piece 9 By arranging the first restoring elastic piece 9, a force can be provided for the lens support 5 and the intermediate support 3 to return to the initial position.
  • the two first restoring elastic pieces 9 there are two first restoring elastic pieces 9 , and the two first restoring elastic pieces 9 are arranged at intervals along the second diagonal line b; the second connecting portion 93 is provided with two and two of the second connecting portions 93 are located on both sides of the second diagonal line b. It can be understood that, in other embodiments, only one second connecting portion may be provided; in this case, preferably, the first connecting portion, the second connecting portion and the elastic portion on the second diagonal line b.
  • a second restoring elastic piece 10 is provided between the intermediate bracket 3 and the lens support 5 , and the second restoring elastic piece 10 includes a first fixing portion 101 fixed on the lens support 5 , a fixing The second fixing part 103 on the intermediate bracket 3 and spaced apart from the first fixing part 101 and the deforming part 105 connecting the first fixing part 101 and the second fixing part 103, when the lens When the bracket 5 rotates relative to the middle bracket 3 around the second pin 7 , the deformation portion 105 is elastically deformed.
  • the second restoring elastic piece 10 can provide a force for restoring the lens holder 5 to the initial position.
  • the two second restoring elastic sheets 10 there are two second restoring elastic sheets 10 , and the two second restoring elastic sheets 10 are arranged at intervals along the first diagonal line a; the second fixing portion 103 is provided with two and two of the second fixing portions 103 are located on both sides of the first diagonal line a. It can be understood that, in other embodiments, only one second fixing portion may be provided; in this case, preferably, the first fixing portion, the second fixing portion and the deforming portion are on the first diagonal line a.
  • the first diagonal line a is perpendicular to the second diagonal line b.
  • a pair of the first shape memory alloy wires 11 and a pair of the second shape memory alloy wires 13 can use the same energization scheme (for example, not energized at the same time and the size of the energization is the same; energized at the same time and the size of the energization is different)
  • the rotation angle generated by the rotation of the lens bracket 5 relative to the intermediate bracket 3 is equal to the rotation angle generated by the rotation of the lens bracket 5 and the intermediate bracket 3 relative to the base plate 2, thereby facilitating the simplification of the A shape memory alloy wire 11 and the second shape memory alloy wire 13 input current control.
  • the lens module provided by the present invention drives the lens bracket 5 to be opposite to the intermediate bracket 3 around the second pin 7 through a pair of first shape memory alloy wires 11 disposed at both ends of the first diagonal line a.
  • Relative rotation can not only simplify the structure of the lens module, save the space of the module and avoid magnetic interference, but also provide a larger driving force in a limited space compared to the electromagnetic structure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

A lens module, comprising a driving device (1), and a base plate (2), an intermediate support (3) and a lens support (5) for mounting a lens (4) that are sequentially arranged at intervals along an optical axis direction of the lens (4); two ends of a first diagonal (a) are respectively provided with a first pin (6) fixed to the base plate (2) and supporting the intermediate support (3), two ends of a second diagonal (b) are respectively provided with a second pin (7) fixed to the intermediate support (3) and supporting the lens support (5), and the driving device (1) comprises a pair of first shape memory alloy wires (11) and a pair of second shape memory alloy wires (13), the first shape memory alloy wires being arranged at two ends of the first diagonal (a) and driving the lens support (5) to rotate relative to the intermediate support (3) around the second pins (7), and the second shape memory alloy wires being arranged at two ends of the second diagonal (b) and driving the lens support (5) and the intermediate support (3) to rotate relative to the base plate (2) around the first pins (6). The lens module has a simple structure and is free of magnetic interference, greatly reduces the space occupied by said module, and can provide a larger driving force in a limited space as compared with an electromagnetic structure.

Description

镜头模组lens module 技术领域technical field
本发明涉及镜头光学成像技术领域，尤其涉及一种镜头模组。The invention relates to the technical field of lens optical imaging, in particular to a lens module.
背景技术Background technique
近年来，在如智能手机、平板电脑一样的便携式终端机上都装载有高性能镜头模组。该高性能镜头模组一般具有自动对焦功能(Auto Focusing,AF)和光学防抖功能(Optical Image Stabilization,OIS)。高性能镜头模组在自动对焦时，使镜头沿镜头的光轴方向移动，在实现光学防抖功能时，使镜头沿垂直镜头的光轴方向移动。In recent years, high-performance lens modules have been mounted on portable terminals such as smartphones and tablet PCs. The high-performance lens module generally has Auto Focusing (AF) and Optical Image Stabilization (OIS). Stabilization, OIS). The high-performance lens module moves the lens along the optical axis direction of the lens during autofocus, and moves the lens along the direction perpendicular to the optical axis of the lens when realizing the optical anti-shake function.
相关技术中的镜头模组通常通过电磁结构驱动镜头自动对焦和光学防抖。然而，此种镜头模组的电磁结构不仅需占用模组较大的空间，而且结构复杂，易受电磁波干扰。The lens module in the related art usually drives the automatic focusing and optical image stabilization of the lens through an electromagnetic structure. However, the electromagnetic structure of such a lens module not only needs to occupy a large space of the module, but also has a complex structure and is susceptible to electromagnetic wave interference.
因此，实有必要提供一种新的镜头模组解决上述问题。Therefore, it is necessary to provide a new lens module to solve the above problems.
技术问题technical problem
本发明的目的在于提供一种镜头模组，该镜头模组不仅结构简单，无磁干扰，可以极大的节省模组的空间，而且在有限的空间相比较于电磁式结构可以提供更大的驱动力。The purpose of the present invention is to provide a lens module, which not only has a simple structure, no magnetic interference, can greatly save the space of the module, but also can provide a larger space in a limited space compared with the electromagnetic structure. driving force.
技术解决方案technical solutions
本发明提供的镜头模组，包括驱动装置以及沿镜头的光轴方向依次间隔设置的底板、中间支架及用于安装镜头的镜头支架，第一对角线的两端分别设有固定于所述底板并支撑所述中间支架的第一销，第二对角线的两端分别设有固定于所述中间支架上并支撑所述镜头支架的第二销，所述驱动装置包括设于所述第一对角线的两端并驱动所述镜头支架绕所述第二销与所述中间支架发生相对旋转的一对第一形状记忆合金线以及设于所述第二对角线的两端并驱动所述镜头支架和所述中间支架绕所述第一销与所述底板发生相对旋转的一对第二形状记忆合金线。The lens module provided by the present invention includes a driving device, a bottom plate, an intermediate bracket and a lens bracket for installing the lens, which are arranged at intervals along the optical axis direction of the lens. the bottom plate and support the first pin of the intermediate bracket, the two ends of the second diagonal line are respectively provided with second pins fixed on the intermediate bracket and support the lens bracket, the driving device includes A pair of first shape memory alloy wires at both ends of the first diagonal and driving the lens holder to rotate relative to the second pin and the intermediate holder, and two ends of the second diagonal and drive a pair of second shape memory alloy wires that rotate relative to the first pin and the base plate around the lens bracket and the intermediate bracket.
优选地，所述中间支架的与所述第一销对应的位置上设有供所述第一销***的第一孔，所述镜头支架的与所述第二销对应的位置上设有供所述第二销***的第二孔，所述第一孔的内壁和所述第二孔的内壁为凹陷的球面，所述第一销和所述第二销的分别与所述第一孔和所述第二孔抵接的末端为凸出的球面，所述第一孔的口径大于所述第一销的外径，所述第二孔的口径大于所述第二销的外径。Preferably, a position corresponding to the first pin of the intermediate bracket is provided with a first hole for inserting the first pin, and a position corresponding to the second pin of the lens bracket is provided with a hole for insertion of the first pin. The second hole into which the second pin is inserted, the inner wall of the first hole and the inner wall of the second hole are concave spherical surfaces, and the first pin and the second pin are respectively connected to the first hole. The end abutting against the second hole is a convex spherical surface, the diameter of the first hole is larger than the outer diameter of the first pin, and the diameter of the second hole is larger than the outer diameter of the second pin.
优选地，所述第一形状记忆合金线和所述第二形状记忆合金线相同，均包括固定在所述底板上的两末端及固定在所述镜头支架上的驱动端及连接所述末端和所述驱动端的延伸段。Preferably, the first shape memory alloy wire and the second shape memory alloy wire are the same, including two ends fixed on the base plate and a driving end fixed on the lens bracket and connecting the ends and an extension of the drive end.
优选地，所述底板包括一对相对且间隔设置的第一侧边以及一对连接所述第一侧边且间隔设置的第二侧边，所述第一形状记忆合金线或所述第二形状记忆合金线的一个所述末端固定在所述第一侧边，另一末端固定在与所述第一侧边相邻的所述第二侧边。Preferably, the bottom plate comprises a pair of opposite and spaced first side edges and a pair of second side edges connected to the first side edges and spaced apart, the first shape memory alloy wire or the second One end of the shape memory alloy wire is fixed on the first side edge, and the other end is fixed on the second side edge adjacent to the first side edge.
优选地，所述末端通过绑线夹子固定在所述底板上。Preferably, the end is fixed on the base plate by a wire binding clip.
优选地，所述镜头支架沿所述第一对角线的相对两端以及沿所述第二对角线的相对两端均开设有线槽，且所述线槽位于所述镜头支架背离所述底板的一侧，所述驱动端位于所述线槽内。Preferably, opposite ends of the lens holder along the first diagonal line and opposite ends along the second diagonal line are provided with wire grooves, and the wire grooves are located at the lens holder away from the On one side of the bottom plate, the driving end is located in the wire groove.
优选地，所述底板与所述中间支架之间设有第一回复弹片，所述第一回复弹片包括固定在所述中间支架上的第一连接部、固定于所述底板上并与所述第一连接部间隔设置的第二连接部及连接所述第一连接部和所述第二连接部的弹性部，当所述镜头支架和所述中间支架绕所述第一销与所述底板发生相对旋转时，所述弹性部发生弹性形变。Preferably, a first restoring elastic sheet is provided between the bottom plate and the intermediate bracket, and the first restoring elastic sheet includes a first connecting portion fixed on the intermediate support, fixed on the bottom plate and connected to the The second connecting part arranged at intervals from the first connecting part and the elastic part connecting the first connecting part and the second connecting part, when the lens bracket and the intermediate bracket wrap around the first pin and the bottom plate When the relative rotation occurs, the elastic portion is elastically deformed.
优选地，所述中间支架与所述镜头支架之间设有第二回复弹片，所述第二回复弹片包括固定在所述镜头支架上的第一固定部、固定于所述中间支架上并与所述第一固定部间隔设置的第二固定部及连接所述第一固定部和所述第二固定部的形变部，当所述镜头支架绕所述第二销与所述中间支架发生相对旋转时，所述形变部发生弹性形变。Preferably, a second restoring elastic piece is arranged between the intermediate bracket and the lens support, and the second restoring elastic piece includes a first fixing portion fixed on the lens support, fixed on the intermediate support and connected with the lens support. The second fixing part arranged at intervals on the first fixing part and the deforming part connecting the first fixing part and the second fixing part, when the lens holder is opposite to the intermediate holder around the second pin During rotation, the deformation portion is elastically deformed.
优选地，所述第一对角线垂直于所述第二对角线。Preferably, the first diagonal line is perpendicular to the second diagonal line.
有益效果beneficial effect
与相关技术相比，本发明提供的镜头模组通过设于所述第一对角线两端的一对第一形状记忆合金线驱动所述镜头支架绕所述第二销与所述中间支架发生相对旋转，并通过设于所述第二对角线两端的一对第二形状记忆合金线驱动所述镜头支架和所述中间支架绕所述第一销与所述底板发生相对旋转，不仅可以简化镜头模组的结构，节省模组的空间避免磁干扰，而且在有限的空间相比较于电磁式结构可以提供更大的驱动力。Compared with the related art, the lens module provided by the present invention drives the lens support around the second pin and the intermediate support through a pair of first shape memory alloy wires disposed at both ends of the first diagonal. Relative rotation, and through a pair of second shape memory alloy wires arranged at both ends of the second diagonal, the lens bracket and the intermediate bracket are driven to rotate relative to the first pin and the bottom plate, not only can The structure of the lens module is simplified, the space of the module is saved to avoid magnetic interference, and a larger driving force can be provided in a limited space compared with the electromagnetic structure.
附图说明Description of drawings
图1为本发明提供的镜头模组一较佳实施例的立体图。FIG. 1 is a perspective view of a preferred embodiment of a lens module provided by the present invention.
图2为图1所示镜头模组沿A-A线的剖视图。FIG. 2 is a cross-sectional view of the lens module shown in FIG. 1 along the line A-A.
图3为图2所示镜头模组沿B-B线的剖视图。FIG. 3 is a cross-sectional view of the lens module shown in FIG. 2 along line B-B.
图4为图1所示镜头模组中部分结构的结构示意图。FIG. 4 is a schematic structural diagram of a part of the structure of the lens module shown in FIG. 1 .
图5为图4所示部分结构的分解图。FIG. 5 is an exploded view of the partial structure shown in FIG. 4 .
图6为图5所示部分结构的另一角度的结构示意图。FIG. 6 is a schematic structural diagram of another angle of the partial structure shown in FIG. 5 .
本发明的实施方式Embodiments of the present invention
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。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
如图1至图6所示，所述镜头模组包括驱动装置1以及沿镜头4的光轴方向依次间隔设置的底板2、中间支架3及用于安装镜头4的镜头支架5，第一对角线a的两端分别设有固定于所述底板2并支撑所述中间支架3的第一销6，第二对角线b的两端分别设有固定于所述中间支架3上并支撑所述镜头支架5的第二销7，所述驱动装置1包括设于所述第一对角线a的两端并驱动所述镜头支架5绕所述第二销7与所述中间支架3发生相对旋转的一对第一形状记忆合金线11以及设于所述第二对角线b的两端并驱动所述镜头支架5和所述中间支架3绕所述第一销6与所述底板2发生相对旋转的一对第二形状记忆合金线13。As shown in FIG. 1 to FIG. 6 , the lens module includes a driving device 1 , a base plate 2 , an intermediate bracket 3 and a lens bracket 5 for installing the lens 4 , which are arranged at intervals along the optical axis direction of the lens 4 . The first pair of Both ends of the diagonal line a are respectively provided with first pins 6 which are fixed on the bottom plate 2 and support the intermediate bracket 3, and both ends of the second diagonal line b are respectively provided with fixed on the intermediate bracket 3 and support The second pin 7 of the lens holder 5, the driving device 1 includes two ends of the first diagonal line a and drives the lens holder 5 around the second pin 7 and the intermediate holder 3 A pair of first shape memory alloy wires 11 that rotate relative to each other and are arranged at both ends of the second diagonal line b and drive the lens holder 5 and the intermediate holder 3 to revolve around the first pin 6 and the A pair of second shape memory alloy wires 13 that rotate relative to the bottom plate 2 .
当一对所述第一形状记忆合金线11不同时通电或者同时通电且通电大小不同时，由于所述第一形状记忆合金线11通电收缩，从而使所述镜头支架5绕所述第二销7与所述中间支架3发生相对旋转，通过调节电流大小可以使得所述镜头支架5旋转到指定的位置。When a pair of the first shape memory alloy wires 11 are not energized at the same time or are energized at the same time and the size of the energization is different, because the first shape memory alloy wires 11 are energized and contracted, the lens holder 5 is wound around the second pin 7 and the intermediate bracket 3 rotate relative to each other, and the lens bracket 5 can be rotated to a designated position by adjusting the magnitude of the current.
当一对所述第二形状记忆合金线13不同时通电或者同时通电且通电大小不同时，由于所述第二形状记忆合金线13通电收缩，从而使所述镜头支架5和所述中间支架3绕所述第一销6与所述底板2发生相对旋转，通过调节电流大小可以使得所述镜头支架5和所述中间支架3旋转到指定的位置。When a pair of the second shape memory alloy wires 13 are not energized at the same time or are energized at the same time and the size of the energization is different, the second shape memory alloy wires 13 are energized and contracted, so that the lens holder 5 and the intermediate holder 3 Relative rotation occurs around the first pin 6 and the base plate 2, and the lens holder 5 and the intermediate holder 3 can be rotated to a designated position by adjusting the magnitude of the current.
本实施方式中，所述中间支架3的与所述第一销6对应的位置上设有供所述第一销6***的第一孔31，所述镜头支架5的与所述第二销7对应的位置上设有供所述第二销7***的第二孔51，所述第一孔31的内壁和所述第二孔51的内壁为凹陷的球面，所述第一销6和所述第二销7的分别与所述第一孔31和所述第二孔51抵接的末端为凸出的球面，其中，所述第一孔31的口径大于所述第一销6的外径，所述第二孔51的口径大于所述第二销7的外径。通过将所述第一孔31的内壁和所述第二孔51的内壁设置为凹陷的球面以及将所述第一销6和所述第二销7的末端设置为凸出的球面，且所述第一孔31的口径大于所述第一销6的外径，所述第二孔51的口径大于所述第二销7的外径，从而可以降低所述镜头支架5绕所述第二销7与所述中间支架3发生相对旋转时所述第二销7与所述第二孔51的内壁之间的摩擦力，以及可以降低所述镜头支架5和所述中间支架3绕所述第一销6与所述底板2发生相对旋转时，所述第一销6与所述第一孔31的内壁之间的摩擦力。In this embodiment, a first hole 31 into which the first pin 6 is inserted is provided at a position of the intermediate bracket 3 corresponding to the first pin 6 , and the lens bracket 5 and the second pin are provided with a first hole 31 . 7 is provided with a second hole 51 in which the second pin 7 is inserted, the inner wall of the first hole 31 and the inner wall of the second hole 51 are concave spherical surfaces, the first pin 6 and The ends of the second pin 7 abutting against the first hole 31 and the second hole 51 respectively are convex spherical surfaces, wherein the diameter of the first hole 31 is larger than that of the first pin 6 . The outer diameter of the second hole 51 is larger than the outer diameter of the second pin 7 . By setting the inner wall of the first hole 31 and the inner wall of the second hole 51 as a concave spherical surface and setting the ends of the first pin 6 and the second pin 7 as a convex spherical surface, all the The diameter of the first hole 31 is larger than the outer diameter of the first pin 6, and the diameter of the second hole 51 is larger than the outer diameter of the second pin 7, so that the lens holder 5 can be lowered around the second When the pin 7 and the intermediate bracket 3 rotate relative to each other, the friction force between the second pin 7 and the inner wall of the second hole 51 can reduce the friction between the lens bracket 5 and the intermediate bracket 3 around the The friction force between the first pin 6 and the inner wall of the first hole 31 when the first pin 6 and the bottom plate 2 rotate relative to each other.
本实施方式中，所述第一形状记忆合金线11和所述第二形状记忆合金线13相同，均包括固定在所述底板2上的两末端1A及固定在所述镜头支架5上的驱动端1B及连接所述末端1A和所述驱动端1B的延伸段1C。In this embodiment, the first shape memory alloy wire 11 and the second shape memory alloy wire 13 are the same, and both include two ends 1A fixed on the bottom plate 2 and a drive fixed on the lens bracket 5 end 1B and an extension 1C connecting the end 1A and the driving end 1B.
本实施方式中，所述底板2包括一对相对且间隔设置的第一侧边21以及一对连接所述第一侧边21且间隔设置的第二侧边23，所述第一形状记忆合金线11或所述第二形状记忆合金线13的一个所述末端1A固定在所述第一侧边21，另一末端1A固定在与所述第一侧边21相邻的所述第二侧边23。In this embodiment, the bottom plate 2 includes a pair of first side edges 21 opposite to each other and spaced apart and a pair of second side edges 23 connected to the first side edges 21 and spaced apart. The first shape memory alloy One end 1A of the wire 11 or the second shape memory alloy wire 13 is fixed on the first side 21 , and the other end 1A is fixed on the second side adjacent to the first side 21 Side 23.
本实施方式中，所述末端1A通过绑线夹子8固定在所述底板2上。这样不仅可以便于将所述末端1A牢固的固定在所述底板2上，而且形状记忆合金线还可以通过所述绑线夹子8与电源电连接。In this embodiment, the end 1A is fixed on the base plate 2 by a wire binding clip 8 . In this way, not only can the terminal 1A be firmly fixed on the base plate 2 , but also the shape memory alloy wire can be electrically connected to the power source through the wire binding clip 8 .
本实施方式中，所述镜头支架5沿所述第一对角线a的相对两端以及沿所述第二对角线b的相对两端均开设有线槽53，且所述线槽53位于所述镜头支架5背离所述底板2的一侧，所述驱动端1B位于所述线槽53内。通过设置所述线槽53，可以限制所述驱动端1B沿对角线（第一对角线a或第二对角线b）发生移动。In this embodiment, the lens holder 5 has wire grooves 53 at opposite ends along the first diagonal line a and opposite ends along the second diagonal line b, and the wire grooves 53 are located in the The side of the lens holder 5 away from the bottom plate 2 is located, and the driving end 1B is located in the wire slot 53 . By arranging the wire slot 53 , the driving end 1B can be restricted from moving along the diagonal line (the first diagonal line a or the second diagonal line b).
本实施方式中，所述底板2与所述中间支架3之间设有第一回复弹片9，所述第一回复弹片9包括固定在所述中间支架3上的第一连接部91、固定于所述底板2上并与所述第一连接部91间隔设置的第二连接部93及连接所述第一连接部91和所述第二连接部93的弹性部95，当所述镜头支架5和所述中间支架3绕所述第一销6与所述底板2发生相对旋转，所述弹性部95发生弹性形变。通过设置所述第一回复弹片9可以为所述镜头支架5和所述中间支架3回复至初始位置提供作用力。In this embodiment, a first return elastic piece 9 is provided between the bottom plate 2 and the intermediate bracket 3 , and the first return elastic piece 9 includes a first connecting portion 91 fixed on the intermediate bracket 3 and fixed on the The second connecting portion 93 on the bottom plate 2 and spaced apart from the first connecting portion 91 and the elastic portion 95 connecting the first connecting portion 91 and the second connecting portion 93, when the lens holder 5 When the intermediate bracket 3 rotates relative to the first pin 6 and the bottom plate 2 , the elastic portion 95 is elastically deformed. By arranging the first restoring elastic piece 9, a force can be provided for the lens support 5 and the intermediate support 3 to return to the initial position.
如图5所示，所述第一回复弹片9设有两个，且两个所述第一回复弹片9沿所述第二对角线b间隔设置；所述第二连接部93设有两个，且两个所述第二连接部93位于所述第二对角线b的两侧。可以理解的是，在其他实施方式中，所述第二连接部也可以仅设有一个；此种情况下，优选地，所述第一连接部、所述第二连接部及所述弹性部位于所述第二对角线b上。As shown in FIG. 5 , there are two first restoring elastic pieces 9 , and the two first restoring elastic pieces 9 are arranged at intervals along the second diagonal line b; the second connecting portion 93 is provided with two and two of the second connecting portions 93 are located on both sides of the second diagonal line b. It can be understood that, in other embodiments, only one second connecting portion may be provided; in this case, preferably, the first connecting portion, the second connecting portion and the elastic portion on the second diagonal line b.
本实施方式中，所述中间支架3与所述镜头支架5之间设有第二回复弹片10，所述第二回复弹片10包括固定在所述镜头支架5上的第一固定部101、固定于所述中间支架3上并与所述第一固定部101间隔设置的第二固定部103及连接所述第一固定部101和所述第二固定部103的形变部105，当所述镜头支架5绕所述第二销7与所述中间支架3发生相对旋转时，所述形变部105发生弹性形变。通过设置所述第二回复弹片10可以为所述镜头支架5回复至初始位置提供作用力。In this embodiment, a second restoring elastic piece 10 is provided between the intermediate bracket 3 and the lens support 5 , and the second restoring elastic piece 10 includes a first fixing portion 101 fixed on the lens support 5 , a fixing The second fixing part 103 on the intermediate bracket 3 and spaced apart from the first fixing part 101 and the deforming part 105 connecting the first fixing part 101 and the second fixing part 103, when the lens When the bracket 5 rotates relative to the middle bracket 3 around the second pin 7 , the deformation portion 105 is elastically deformed. The second restoring elastic piece 10 can provide a force for restoring the lens holder 5 to the initial position.
如图5所示，所述第二回复弹片10设有两个，且两个所述第二回复弹片10沿所述第一对角线a间隔设置；所述第二固定部103设有两个，且两个所述第二固定部103位于所述第一对角线a的两侧。可以理解的是，在其他实施方式中，所述第二固定部也可以仅设有一个；此种情况下，优选地，所述第一固定部、所述第二固定部及所述形变部位于所述第一对角线a上。As shown in FIG. 5 , there are two second restoring elastic sheets 10 , and the two second restoring elastic sheets 10 are arranged at intervals along the first diagonal line a; the second fixing portion 103 is provided with two and two of the second fixing portions 103 are located on both sides of the first diagonal line a. It can be understood that, in other embodiments, only one second fixing portion may be provided; in this case, preferably, the first fixing portion, the second fixing portion and the deforming portion are on the first diagonal line a.
本实施方式中，所述第一对角线a垂直于所述第二对角线b。这样可以使得一对所述第一形状记忆合金线11和一对所述第二形状记忆合金线13采用相同的通电方案（例如，不同时通电且通电大小相同；同时通电且通电大小不同）时，可使得所述镜头支架5相对所述中间支架3旋转产生的旋转角度等于所述镜头支架5和所述中间支架3相对所述底板2旋转产生的旋转角度，从而有利于简化对所述第一形状记忆合金线11和所述第二形状记忆合金线13输入电流的控制。In this embodiment, the first diagonal line a is perpendicular to the second diagonal line b. In this way, a pair of the first shape memory alloy wires 11 and a pair of the second shape memory alloy wires 13 can use the same energization scheme (for example, not energized at the same time and the size of the energization is the same; energized at the same time and the size of the energization is different) , the rotation angle generated by the rotation of the lens bracket 5 relative to the intermediate bracket 3 is equal to the rotation angle generated by the rotation of the lens bracket 5 and the intermediate bracket 3 relative to the base plate 2, thereby facilitating the simplification of the A shape memory alloy wire 11 and the second shape memory alloy wire 13 input current control.
本发明提供的镜头模组通过设于所述第一对角线a两端的一对第一形状记忆合金线11驱动所述镜头支架5绕所述第二销7与所述中间支架3发生相对旋转，并通过设于所述第二对角线b两端的一对第二形状记忆合金线13驱动所述镜头支架5和所述中间支架3绕所述第一销6与所述底板2发生相对旋转，不仅可以简化镜头模组的结构，节省模组的空间避免磁干扰，而且在有限的空间相比较于电磁式结构可以提供更大的驱动力。The lens module provided by the present invention drives the lens bracket 5 to be opposite to the intermediate bracket 3 around the second pin 7 through a pair of first shape memory alloy wires 11 disposed at both ends of the first diagonal line a. Rotate, and drive the lens holder 5 and the intermediate holder 3 around the first pin 6 and the bottom plate 2 through a pair of second shape memory alloy wires 13 located at both ends of the second diagonal b Relative rotation can not only simplify the structure of the lens module, save the space of the module and avoid magnetic interference, but also provide a larger driving force in a limited space compared to the electromagnetic structure.
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。The above are only the embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these belong to the present invention. scope of protection.

Claims (9)

  1. 一种镜头模组，其特征在于，包括驱动装置以及沿镜头的光轴方向依次间隔设置的底板、中间支架及用于安装镜头的镜头支架，第一对角线的两端分别设有固定于所述底板并支撑所述中间支架的第一销，第二对角线的两端分别设有固定于所述中间支架上并支撑所述镜头支架的第二销，所述驱动装置包括设于所述第一对角线的两端并驱动所述镜头支架绕所述第二销与所述中间支架发生相对旋转的一对第一形状记忆合金线以及设于所述第二对角线的两端并驱动所述镜头支架和所述中间支架绕所述第一销与所述底板发生相对旋转的一对第二形状记忆合金线。A lens module is characterized in that it includes a driving device, a bottom plate, an intermediate bracket and a lens bracket for installing the lens that are arranged at intervals along the optical axis direction of the lens, and two ends of the first diagonal line are respectively provided with fixed The bottom plate supports the first pin of the intermediate bracket, the two ends of the second diagonal line are respectively provided with second pins fixed on the intermediate bracket and supports the lens bracket, and the driving device includes a A pair of first shape memory alloy wires that drive the lens holder around the second pin and the intermediate holder to rotate relative to both ends of the first diagonal and a pair of wires arranged on the second diagonal. A pair of second shape memory alloy wires at both ends and driving the lens holder and the intermediate holder to rotate relative to the first pin and the base plate.
  2. 根据权利要求1所述的镜头模组，其特征在于：所述中间支架的与所述第一销对应的位置上设有供所述第一销***的第一孔，所述镜头支架的与所述第二销对应的位置上设有供所述第二销***的第二孔，所述第一孔的内壁和所述第二孔的内壁为凹陷的球面，所述第一销和所述第二销的分别与所述第一孔和所述第二孔抵接的末端为凸出的球面，所述第一孔的口径大于所述第一销的外径，所述第二孔的口径大于所述第二销的外径。The lens module according to claim 1, wherein a position corresponding to the first pin of the intermediate bracket is provided with a first hole into which the first pin is inserted, the lens bracket and the The position corresponding to the second pin is provided with a second hole into which the second pin is inserted, the inner wall of the first hole and the inner wall of the second hole are concave spherical surfaces, the first pin and the The ends of the second pin that respectively abut with the first hole and the second hole are convex spherical surfaces, the diameter of the first hole is larger than the outer diameter of the first pin, and the second hole The caliber is larger than the outer diameter of the second pin.
  3. 根据权利要求1所述的镜头模组，其特征在于：所述第一形状记忆合金线和所述第二形状记忆合金线相同，均包括固定在所述底板上的两末端及固定在所述镜头支架上的驱动端及连接所述末端和所述驱动端的延伸段。The lens module according to claim 1, wherein the first shape memory alloy wire and the second shape memory alloy wire are the same, and both include two ends fixed on the bottom plate and two ends fixed on the The driving end on the lens bracket and the extension section connecting the end and the driving end.
  4. 根据权利要求3所述的镜头模组，其特征在于：所述底板包括一对相对且间隔设置的第一侧边以及一对连接所述第一侧边且间隔设置的第二侧边，所述第一形状记忆合金线或所述第二形状记忆合金线的一个所述末端固定在所述第一侧边，另一末端固定在与所述第一侧边相邻的所述第二侧边。The lens module according to claim 3, wherein the bottom plate comprises a pair of opposite and spaced first side edges and a pair of second side edges connected to the first side edges and spaced apart, the One end of the first shape memory alloy wire or the second shape memory alloy wire is fixed on the first side edge, and the other end is fixed on the second side adjacent to the first side edge side.
  5. 根据权利要求3或4所述的镜头模组，其特征在于：所述末端通过绑线夹子固定在所述底板上。The lens module according to claim 3 or 4, wherein the end is fixed on the base plate by a wire binding clip.
  6. 根据权利要求3所述的镜头模组，其特征在于：所述镜头支架沿所述第一对角线的相对两端以及沿所述第二对角线的相对两端均开设有线槽，且所述线槽位于所述镜头支架背离所述底板的一侧，所述驱动端位于所述线槽内。The lens module according to claim 3, wherein opposite ends of the lens bracket along the first diagonal line and opposite ends along the second diagonal line are provided with wire grooves, and The wire groove is located on the side of the lens support away from the bottom plate, and the driving end is located in the wire groove.
  7. 根据权利要求1所述的镜头模组，其特征在于：所述底板与所述中间支架之间设有第一回复弹片，所述第一回复弹片包括固定在所述中间支架上的第一连接部、固定于所述底板上并与所述第一连接部间隔设置的第二连接部及连接所述第一连接部和所述第二连接部的弹性部，当所述镜头支架和所述中间支架绕所述第一销与所述底板发生相对旋转时，所述弹性部发生弹性形变。The lens module according to claim 1, wherein a first return elastic piece is provided between the bottom plate and the intermediate bracket, and the first return elastic piece comprises a first connection fixed on the intermediate bracket part, a second connecting part fixed on the bottom plate and spaced apart from the first connecting part, and an elastic part connecting the first connecting part and the second connecting part, when the lens holder and the When the intermediate bracket rotates relative to the bottom plate around the first pin, the elastic portion is elastically deformed.
  8. 根据权利要求1或7所述的镜头模组，其特征在于：所述中间支架与所述镜头支架之间设有第二回复弹片，所述第二回复弹片包括固定在所述镜头支架上的第一固定部、固定于所述中间支架上并与所述第一固定部间隔设置的第二固定部及连接所述第一固定部和所述第二固定部的形变部，当所述镜头支架绕所述第二销与所述中间支架发生相对旋转时，所述形变部发生弹性形变。The lens module according to claim 1 or 7, wherein a second restoring elastic piece is arranged between the intermediate support and the lens support, and the second restoring elastic piece comprises a A first fixing part, a second fixing part fixed on the intermediate bracket and spaced apart from the first fixing part, and a deforming part connecting the first fixing part and the second fixing part, when the lens When the bracket rotates relative to the middle bracket around the second pin, the deformation portion is elastically deformed.
  9. 根据权利要求1所述的镜头模组，其特征在于：所述第一对角线垂直于所述第二对角线。The lens module according to claim 1, wherein the first diagonal line is perpendicular to the second diagonal line.
PCT/CN2020/118356 2020-08-19 2020-09-28 Lens module WO2022036810A1 (en)

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CN202021728259.5U CN211554446U (en) 2020-08-19 2020-08-19 Lens module
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CN211554446U (en) * 2020-08-19 2020-09-22 瑞声通讯科技(常州)有限公司 Lens module

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CN101408658A (en) * 2007-10-09 2009-04-15 一品光学工业股份有限公司 Lens shifting mechanism with shape memory alloy
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KR20160102803A (en) * 2015-02-23 2016-08-31 자화전자(주) Optical Image Stabilizer device and Camera module containing the same
CN109564355A (en) * 2016-05-19 2019-04-02 哈钦森技术股份有限公司 Camera lens suspend device
CN110023831A (en) * 2016-12-13 2019-07-16 艾斯科技公司 Optical image stabilizer
CN110998433A (en) * 2017-08-07 2020-04-10 Lg伊诺特有限公司 Lens driving device, camera module, and optical apparatus
CN211554446U (en) * 2020-08-19 2020-09-22 瑞声通讯科技(常州)有限公司 Lens module

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CN1932586A (en) * 2005-09-15 2007-03-21 宾得株式会社 Anti-shake system
CN101408658A (en) * 2007-10-09 2009-04-15 一品光学工业股份有限公司 Lens shifting mechanism with shape memory alloy
CN102262329A (en) * 2010-05-27 2011-11-30 佳能株式会社 Image stabilizing apparatus and optical apparatus having the same
KR20160102803A (en) * 2015-02-23 2016-08-31 자화전자(주) Optical Image Stabilizer device and Camera module containing the same
CN109564355A (en) * 2016-05-19 2019-04-02 哈钦森技术股份有限公司 Camera lens suspend device
CN110023831A (en) * 2016-12-13 2019-07-16 艾斯科技公司 Optical image stabilizer
CN110998433A (en) * 2017-08-07 2020-04-10 Lg伊诺特有限公司 Lens driving device, camera module, and optical apparatus
CN211554446U (en) * 2020-08-19 2020-09-22 瑞声通讯科技(常州)有限公司 Lens module

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