WO2022227716A1

WO2022227716A1 - Optical anti-shake assembly and lens assembly

Info

Publication number: WO2022227716A1
Application number: PCT/CN2022/072012
Authority: WO
Inventors: 刘述伦; 耿新龙; 计数标
Original assignee: 广东海德亚科技有限公司
Priority date: 2021-04-30
Filing date: 2022-01-14
Publication date: 2022-11-03
Also published as: CN113093400A

Abstract

An optical anti-shake assembly and a lens assembly. The optical anti-shake assembly comprises: a base plate; a first movable plate movably disposed on the base plate; a second movable plate movably disposed on the first movable plate; a first driving module comprising a first SMA wire and a first connecting member, the first connecting member being disposed on the first movable plate, the first SMA wire being bent and having the bending area abutting against the first connecting member, and the first SMA wire being sued for driving the first movable plate to move in an X-axis direction; and a second driving module comprising a second SMA wire and a second connecting member, the second connecting member being disposed on the second movable plate, the second SMA wire being bent and having the bending area abutting against the second connecting member, and the second SMA wire being used for driving the second movable plate to move in a Y-axis direction. In the present application, movement in the X-axis direction and movement in the Y-axis direction are respectively controlled by means of the first SMA wire and the second SMA wire which are bent, thereby improving the control precision.

Description

Optical image stabilization components and lens components

This application claims the priority of the Chinese patent application with the application number 202110483396.X and the invention titled "Optical Image Stabilizer Assembly and Lens Assembly" filed with the China Patent Office on April 30, 2021, the entire contents of which are incorporated herein by reference Applying.

technical field

The present application relates to the technical field of optical image stabilization, and in particular, to an optical image stabilization component and a lens component.

Background technique

With the development of electronic equipment, the requirements for the control accuracy of the optical anti-shake drive components of cameras are getting higher and higher. Among related products, there are fixed parts, movable parts and memory alloy wires used to drive the movement of movable parts. The movable member is in the shape of a box, and the memory alloy wires are arranged around the movable member. The memory alloy wires are divided into X wires arranged along the X axis direction, and Y wires arranged along the Y axis direction. The edge of the movable piece is provided with an L-shaped flexible arm, and the flexible arm is arranged along the two adjacent sides of the movable piece. When the X-ray is driven, the flexible arm will be deformed in the X-axis direction, and the The arm also deforms slightly in the Y-axis direction, which affects the control accuracy. Therefore, in related products, there is a coupling between the movement in the X-axis direction and the movement in the Y-axis direction.

SUMMARY OF THE INVENTION

The purpose of this application is to solve at least one of the technical problems existing in the prior art, and to provide an optical anti-shake assembly, which can remove the coupling relationship between the movement in the X-axis direction and the movement in the Y-axis direction in the related design, and improve the control precision.

Embodiments of the second aspect of the present application further provide a lens assembly, including the above optical anti-shake assembly.

An embodiment of the first aspect of the present application provides an optical anti-shake assembly, including:

substrate;

a first movable plate, which is movably erected on the base plate;

a second movable plate, which is movably erected on the first movable plate;

The first driving module includes a first SMA wire and a first connecting piece, the first connecting piece is arranged on the first movable plate, both ends of the first SMA wire are connected to the base plate, and the first SMA wire is connected to the base plate. The wire is bent and arranged, and its bending area is in contact with the first connector, and the first SMA wire can be energized and contracted to drive the first movable plate to move relative to the base plate along the X-axis direction;

The second driving module includes a second SMA wire and a second connecting piece, the second connecting piece is arranged on the second movable plate, and both ends of the second SMA wire are connected to the first movable plate or the second movable plate. The substrate is connected; the second SMA wire is bent and arranged, and its bending area is in contact with the second connecting piece, and the second SMA wire can be energized and contracted to drive the second movable plate relative to the first A movable plate moves along the Y-axis direction.

The optical anti-shake assembly according to the embodiment of the first aspect of the present application has at least the following technical effects: both the first SMA wire and the second SMA wire are energized and contracted, so that both the first SMA wire and the second SMA wire are restored to straightness , thereby generating thrust, respectively driving the movement of the first movable plate and the movement of the second movable plate.

The second movable plate is driven to move in the Y-axis direction by the second driving module, and the first movable plate is driven to move in the X-axis direction by the first driving module, which in turn drives the second movable plate to move in the X-axis direction, thereby releasing the X-axis. The coupling relationship between the motion in the axis direction and the motion in the Y-axis direction improves the control accuracy.

In addition, the thrust generated by the bent second SMA wire also has directivity, and the bending area of the second SMA wire has a tendency to move and deform along the shortest path in the direction connecting the two ends of the second SMA wire. The direction of the thrust generated by the SMA wire is always perpendicular to the wire connecting its two ends. When the connecting line between the two ends of the second SMA wire is parallel to the X axis, the thrust generated by the second SMA wire will be parallel to the Y axis at any time.

When both ends of the second SMA wire are connected to the upper substrate, the movement of the first movable plate will change the position of the bending area of the second SMA wire, and the thrust generated by the second SMA wire is directional, so the second SMA wire is directional. The thrust direction of the SMA wire will not change, which can reduce the occurrence of mutual interference between the movement in the X-axis direction and the movement in the Y-axis direction.

According to the embodiment of the present application, there are multiple sets of the first drive modules, and at least two sets of the first drive modules are arranged symmetrically about the Y axis;

There are multiple sets of the second driving modules, and at least two sets of the second driving modules are arranged symmetrically about the X-axis.

According to the embodiment of the present application, both the first SMA wire and the second SMA wire are bent into a "V" shape, and the vertex of the bending region of the first SMA wire is in contact with the first connector; the The apex of the bent region of the second SMA wire is connected with the second connecting piece.

According to the embodiment of the present application, the first driving module further includes a first elastic arm, the first elastic arm is connected to the first movable plate and the base plate, and the first elastic arm can be elastically deformed in the X-axis direction , to allow the first movable plate to move relative to the base plate along the X-axis direction;

The second drive module further includes a second elastic arm, the second elastic arm is connected to the first movable plate and the second movable plate, and the second elastic arm can be elastically deformed in the Y-axis direction to allow The second movable plate moves in the Y-axis direction relative to the first movable plate.

According to the embodiment of the present application, the first elastic arm is disposed on the edge of the first movable plate, and the first elastic arm has a swinging section, and there is a swinging section between the first movable plate and the first swinging swinging section. a first gap, within which the swinging section of the first elastic arm can swing;

The second elastic arm is arranged on the edge of the second movable plate, and the second elastic arm has a swing section, and there is a second gap between the second movable plate and the swing section of the second swing, and the The swinging section of the second elastic arm can swing within the second gap.

According to the embodiment of the present application, there is a first gap between the swing section of the first elastic arm and the first movable plate, and the first gap can be used as a swing space for the swing section of the first elastic arm;

There is a second gap between the swing section of the second elastic arm and the second movable plate, and the second gap can be used as a swing space for the swing section of the second elastic arm.

According to the embodiment of the present application, both ends of the first SMA wire are connected to the substrate, and both ends of the second SMA wire are connected to the first movable plate.

According to an embodiment of the present application, the substrate includes a second conductive block and a third conductive block that are provided in isolation from each other, a plurality of the second conductive blocks are provided and are insulated from each other, and a plurality of the third conductive blocks are provided and are provided with Mutual insulation set;

The first movable plate includes a plurality of first conductive blocks that are insulated from each other, each of the first conductive blocks has a first elastic arm, the first conductive block is electrically connected to the third conductive block through the first elastic arm, and the first conductive block is electrically connected to the third conductive block. The first conductive block and the third conductive block form a plurality of mutually independent conductive units;

Two ends of the first SMA wire are respectively electrically connected with different second conductive blocks;

Two ends of the second SMA wire are respectively electrically connected with different conductive units;

Both the first connector and the second connector are made of insulating material.

According to the embodiment of the present application, both ends of the first SMA wire are connected to the substrate, and both ends of the second SMA wire are connected to the substrate.

According to an embodiment of the present application, the substrate includes a plurality of second conductive blocks that are insulated from each other, and two ends of the first SMA wire and two ends of the second SMA wire are respectively electrically connected to different second conductive blocks.

The embodiment of the second aspect of the present application adopts a lens assembly, including the optical anti-shake assembly of all the above-mentioned embodiments.

The lens assembly according to the embodiment of the second aspect of the present application has at least the following technical effects: by using the optical anti-shake assembly of the above embodiment, the lens assembly of the embodiment of the present application has a good anti-shake effect.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

FIG. 1 is a schematic structural diagram of an optical anti-shake assembly in an embodiment of the first aspect of the present application;

FIG. 2 is a schematic structural diagram of the optical anti-shake assembly shown in FIG. 1 after a part of the structure is hidden;

3 is a schematic diagram of an exploded structure of the optical anti-shake assembly shown in FIG. 1;

4 is a schematic structural diagram of a first movable plate of the optical anti-shake assembly shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a substrate of the optical anti-shake assembly shown in FIG. 1;

FIG. 6 is a schematic structural diagram of a second movable plate of the optical anti-shake assembly shown in FIG. 1 .

Reference numerals: base plate 300; first movable plate 100; second movable plate 200; first driving module 400; first SMA wire 410; first connecting member 420; first elastic arm 430; second driving module 500 The second SMA wire 510; the second connector 520; the second elastic arm 530; the second conductive block 320; the third conductive block 330; the first conductive block 110; ; the second gap 820; the first extension 190; the second extension 290.

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Axial, Radial, Circumferential The orientation or positional relationship indicated by , "front", "reverse", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must be It has a specific orientation, is constructed and operates in a specific orientation, and therefore should not be construed as a limitation of the present application. Furthermore, features delimited with "first", "second" may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.

The optical anti-shake assembly according to the embodiment of the first aspect of the present application will be described below with reference to FIGS. 1 to 3 , including:

substrate 300;

The first movable plate 100 is movably erected on the base plate 300;

The second movable plate 200 is movably erected on the first movable plate 100;

The first driving module 400 includes a first SMA wire 410 and a first connecting member 420 , the first connecting member 420 is disposed on the first movable plate 100 , and both ends of the first SMA wire 410 are connected to the substrate 300 . For connection, the first SMA wire 410 is bent and arranged, and the bending area of the first SMA wire 410 is in contact with the first connecting member 420. The first SMA wire 410 can be energized and contracted to drive the first movable plate 100 to face each other. moving along the X-axis direction on the substrate 300;

The second driving module 500 includes a second SMA wire 510 and a second connecting member 520, the second connecting member 520 is disposed on the second movable plate 200, and both ends of the second SMA wire 510 are connected to the second SMA wire 510. The first movable plate 100 or the base plate 300 is connected; the second SMA wire 510 is bent and arranged, and the bending area of the second SMA wire 510 is in contact with the second connecting member 520, and the second SMA wire 510 can be energized and contracted, In order to drive the second movable plate 200 to move relative to the first movable plate 100 along the Y-axis direction.

Preferably, in this embodiment of the present application, the X axis and the Y axis are perpendicular to each other.

The optical anti-shake assembly of the embodiment of the present application works as follows: both the first SMA wire 410 and the second SMA wire 510 will be energized and contracted, so that both the first SMA wire 410 and the second SMA wire 510 tend to return to straightness , thereby generating thrust, respectively driving the first movable panel 100 to move and the second movable panel 200 to move.

The second movable plate 200 is driven to move in the Y-axis direction by the second driving module 500 , the first movable plate 100 is driven to move in the X-axis direction by the first driving module 400 , and then the second movable plate 200 is driven to move in the X-axis direction , thereby releasing the coupling relationship between the movement in the X-axis direction and the movement in the Y-axis direction, and improving the control accuracy.

When the first SMA wire 410 and the second SMA wire 510 are energized, they both shrink, so they both tend to return to straight, thereby generating thrust. The following takes the second SMA wire 510 as an example to illustrate how the bent SMA wire generates thrust: the first SMA wire 410 is bent and arranged, when the second SMA wire 510 is energized, the bending area of the second SMA wire 510 has The tendency to move in the direction of the movement of the connecting line at both ends thereof, thereby generating thrust, pushing the second connecting piece 520 to move.

It is conceivable that the principle of generating the thrust force by the first SMA wire 410 is similar to the principle of generating the thrust force by the second SMA wire 510 , and details are not described herein again.

In addition, the thrust generated by the bent second SMA wire 510 also has directivity, and the bending area of the second SMA wire 510 has a tendency to move and deform along the shortest path in the direction connecting the two ends of the second SMA wire 510 , so the direction of the thrust generated by the second SMA wire 510 is always perpendicular to the line connecting the two ends thereof. When the connection between the two ends of the second SMA wire 510 is parallel to the X-axis, the thrust generated by the second SMA wire 510 will be parallel to the Y-axis at any time.

When both ends of the second SMA wire 510 are connected to the upper substrate 300, the movement of the first movable plate 100 will change the position of the bending region of the second SMA wire 510, and the thrust generated by the second SMA wire 510 has a direction Therefore, the thrust direction of the second SMA wire 510 will not change, which can reduce the occurrence of mutual interference between the movement in the X-axis direction and the movement in the Y-axis direction.

Preferably, the first connecting member 42 is located between the first movable plate 100 and the second movable plate 200, and its upper end surface is in contact with the second movable plate; the second connecting members 520 are all located at the first movable plate Between the plate 100 and the second movable plate 200, the lower end face of the abutment with the first movable plate 100 makes the first movable plate 100 and the second movable plate 200 not in direct contact, reduces friction, and not only improves the performance of the embodiment of the present application. The response speed of the optical image stabilization component can also reduce the wear caused by friction.

Specifically, the first connector 420 and the second connector 520 are both made of insulating materials. The side wall of the first connector 420 is provided with a first groove, the bending area of the first SMA wire 410 abuts in the first groove, and the first SMA wire 410 can be energized and contracted in the first groove. The movement in the groove can prevent the first SMA wire 410 from moving in the Z-axis direction through the first groove, so as to achieve a better driving effect.

The side wall of the second connector 520 is provided with a second groove, and the bending area of the second SMA wire 510 abuts in the second groove. When the second SMA wire 510 is energized and contracted, it can be Movement in the second groove, through which the second SMA wire 510 can be prevented from moving in the Z-axis direction, so as to achieve a better driving effect.

In some embodiments of the present application, there are multiple groups of the first driving modules 400, and at least two groups of the first driving modules 400 are arranged symmetrically about the X-axis;

There are multiple sets of the second driving modules 500, and at least two sets of the second driving modules 500 are arranged symmetrically about the Y axis.

Specifically, the first driving module 400 only has thrust in one direction, a plurality of first driving modules 400 are provided, and at least two first driving modules 400 are arranged symmetrically about the X axis, so that the first movable plate The movement of the 100 in both directions in the X-axis direction can be controlled separately.

It is conceivable that there are multiple sets of the second driving modules 500, and at least two sets of the second driving modules 500 are arranged symmetrically about the Y-axis. The working principle of the second driving module 500 is referred to the working principle of the above-mentioned first driving module 400. I won't repeat them one by one.

In some embodiments of the present application, referring to FIGS. 2 to 3 , both the first SMA wire 410 and the second SMA wire 510 are bent into a “V” shape, and the bending area of the first SMA wire 410 is The apex is in contact with the first connecting piece 420 ; the apex of the bending region of the second SMA wire 510 is connected with the second connecting piece 520 .

Specifically, the first SMA wire 410 and the second SMA wire 510 are both bent into a "V" shape. Taking the first SMA wire 410 as an example to illustrate its technical effect, the V-shaped before and after the first SMA wire 410 is energized The distance between the vertices is the translation distance of the first moving plate relative to the substrate 300 . In addition, when the included angle of the V-shape on the first SMA wire 410 is larger, the first SMA wire 410 shrinks by the same amount, and the distance of the movement of the V-shape apex is larger, thereby playing a role of amplifying the stroke. Therefore, the length of the first SMA wire 410 can be reduced under the condition of a certain movement stroke, thereby reducing the volume of the anti-shake actuating motor, which is beneficial to the miniaturization of the device. Similarly, the principles and technical effects of the second SMA wire 510 can be referred to with reference to the first SMA wire 410 , which will not be repeated here.

Preferably, both ends of the second SMA wire 510 overlap the first movable plate 100 , and the first SMA wire 410 and the second SMA wire 510 are bent and arranged in an equilateral V-shape. By setting the above, the distances from both ends of the first SMA wire 410 to the bending area are equal at all times, which facilitates the calibration of the control program.

In some embodiments of the present application, referring to FIGS. 2 to 3 , the first driving module 400 further includes a first elastic arm 430 , and the first elastic arm 430 is connected to the first movable plate 100 and the base plate 300 . connected, the first elastic arm 430 can be elastically deformed in the X-axis direction to generate elastic force, so as to allow the first movable plate 100 to move relative to the base plate 300 in the X-axis direction;

The second drive module 500 further includes a second elastic arm 530 connected to the second movable plate 200 and connected to the first movable plate 100. The second elastic arm 530 can be elastically deformed in the Y-axis direction to generate elastic force to allow The second movable plate 200 moves in the Y-axis direction relative to the first movable plate.

Specifically, the first elastic arm 430 only has elasticity in the X-axis direction, but has rigidity in other directions, so that the movement direction of the first movable plate 100 can be restricted, and the first SMA wire 410 cooperates with the first SMA wire 410 to make the first movable plate 100 move. The movement is more precise so that it can move relative to the substrate 300 in the X-axis direction.

It is conceivable that the function and principle of the second elastic arm 530 will not be described here with reference to the first elastic arm 430 .

In addition, the first elastic arm 430 and the second elastic arm 530 are provided, so that the first movable plate 100 and the second movable plate 200 have a tendency to reset at any time, and have better control performance.

In some embodiments of the present application, the first elastic arm 430 is disposed on the edge of the first movable plate 100 , and the first elastic arm 430 has a swinging section, and the first movable plate 100 is connected to the first movable plate 100 . There is a first gap 810 between the swinging swing sections, and the swing section of the first elastic arm 430 can swing within the first gap 810 to generate elastic force;

The second elastic arm 530 is arranged on the edge of the second movable plate 200 , and the second elastic arm 530 has a swinging section, and there is a swinging section between the second movable plate 200 and the swinging section of the second elastic arm 530 . In the second gap 820 , the swinging section of the second elastic arm 530 can swing within the second gap 820 .

Specifically, two optimal specific embodiments are listed below to illustrate the structures of the first elastic arm 430 and the second elastic arm 530 . In the first specific embodiment, one end of the first elastic arm 430 is connected to the first movable plate 100 , and the other end is connected to the base plate 300 , one end of the second elastic arm 530 is connected to the second movable plate 200 , and the other end is connected to the second movable plate 200 . The first movable panel 100 is connected. In the second specific embodiment, both ends of the first elastic arm 430 are connected to the first movable plate 100 , the middle part of the first elastic arm 430 can be elastically swung, and at least part of the middle part of the first elastic arm 430 is connected to the base plate 300 , both ends of the second elastic arm 530 are connected with the second movable plate 200 , the middle part can be elastically swung, and at least part of the middle part of the first elastic arm 430 is connected with the first movable plate 100 .

The structure of the first specific embodiment will be described in detail below. Referring to FIG. 4 , the first movable plate 100 is provided with first extension sections 190 on both sides of the X-axis direction, and the first extension sections 190 are along the X-axis direction. Extended arrangement, the swing section of the first elastic arm 430 is arranged along the Y-axis direction, and one end of the first elastic arm 430 is connected to the first extension section 190, so that the swing section of the first elastic arm 430 is connected to the first movable plate A first movable gap is formed between 100 , and the first movable gap can be used as a part of the swinging space of the swinging section of the first elastic arm 430 .

6 , the second movable plate 200 is provided with second extension sections 290 on both sides of the Y-axis direction, the second extension sections 290 are extended along the Y-axis direction, and the swing of the second elastic arm 530 The segments are arranged along the X-axis direction, and one end of the second elastic arm 530 is connected with the second extending section 290, so that a second movable gap is formed between the swinging section of the second elastic arm 530 and the second movable plate 200, and the second The movable gap can be used as a part of the swinging space of the swinging section of the second elastic arm 530 .

The structure of the second specific embodiment will be described in detail below. The first movable plate 100 is provided with a pair of first extension sections 190 on both sides of the X-axis direction, and the first extension sections 190 are extended along the X-axis direction. The swinging section of the first elastic arm 430 is arranged along the Y-axis direction, the two ends of the first elastic arm 430 are respectively connected with the two first extension sections 190 on the same side, and the middle part of the first elastic arm 430 is A swinging section, so that a first movable gap is formed between the swinging section of the first elastic arm 430 and the first movable plate 100, and the first movable gap can be used as a part of the swinging space of the swinging section of the first elastic arm 430, wherein the swinging section has some The area is used for connection with the substrate 300 .

A pair of second extension sections 290 are provided on both sides of the second movable plate 200 in the Y-axis direction. The second extension sections 290 are extended in the Y-axis direction, and the swing section of the second elastic arm 530 is along the X-axis. The two ends of the second elastic arm 530 are respectively connected to the second extension section 290 on the same side. A second movable gap is formed between the plates 200 , and the second movable gap can be used as two parts of the swing space of the swinging section of the second elastic arm 530 for connecting with the first movable plate 100 .

In the embodiment of the present application, both ends of the first SMA wire 410 are overlapped on the substrate 300 , while the second SMA wire 510 has two different overlapping forms: in the first overlapping form, the second SMA Both ends of the wire 510 are lapped onto the first movable plate 100 ; in the second lap connection form, both ends of the second SMA wire 510 are lapped onto the substrate 300 . The beneficial effects brought by the two different overlapping forms are described in detail below in the form of two specific embodiments.

In the first overlapping form of the second SMA wire 510 according to the embodiment of the present application, referring to FIG. 2 and FIG. 3 , both ends of the first SMA wire 410 are connected to the substrate 300 , and the second SMA wire Both ends of 510 are connected to the first movable plate 100 .

Specifically, the first SMA wire 410 and the second SMA wire 510 are independent of each other, the movement of the first movable plate 100 will not interfere with the second SMA wire 510, and the second SMA wire can be reduced.

In order to realize individual control of each of the first SMA wires 410 and the second SMA wires 510, referring to FIG. 5 , the substrate 300 includes a second conductive block 320 and a third conductive block 330 that are insulated from each other. The second conductive block 320 A plurality of the third conductive blocks 330 are provided and insulated from each other;

Referring to FIG. 4 , the first movable plate 100 includes a plurality of first conductive blocks 110 that are insulated from each other, a plurality of first elastic arms 430 are provided, and are respectively connected to each of the first conductive blocks 110 . The block 110 is electrically connected to the third conductive block 330 through the first elastic arm 430, and the first conductive block 110 and the third conductive block 330 constitute a plurality of mutually independent conductive units;

3 to 5 , both ends of the first SMA wire 410 are electrically connected to different second conductive blocks 320 respectively; it is conceivable that when multiple first driving modules 400 are provided, each first A second conductive block 320 may be shared among the SMA wires 410 as a common pole, so as to further reduce the volume and facilitate miniaturization.

Both ends of the second SMA wire 510 are respectively electrically connected to the first conductive blocks 110 in different conductive units; it is conceivable that when multiple second driving modules 500 are provided, each second SMA wire 510 A conductive unit can be shared as a common electrode to further reduce the volume and facilitate miniaturization.

Further, the third conductive block 330 in the conductive unit serving as the common common electrode can be electrically connected to the second conductive block 320 of the common electrode, serving as the connection between all the first SMA wires 410 and all the second SMA wires 510. public pole.

The first connector 420 and the second connector 520 are both made of insulating materials.

In the second overlapping form of the second SMA wire 510 in the embodiment of the present application, both ends of the first SMA wire 410 are connected to the substrate 300 , and both ends of the second SMA wire 510 are connected to the substrate 300 . The substrate 300 is connected.

Specifically, in order to realize individual control of different first SMA wires 410 and second SMA wires 510 , the substrate 300 includes a plurality of second conductive blocks 320 which are insulated from each other. Both ends of the first SMA wires 410 And two ends of the second SMA wire 510 are respectively electrically connected to different second conductive blocks 320 .

It is conceivable that one second conductive block 320 can be used as a common pole between different first SMA wires 410 and different second SMA wires 510 .

In some embodiments of the present application, an adapter sheet 700 is further included, and the adapter sheet 700 is disposed on both ends of the first SMA wire 410 and both ends of the second SMA wire 510, and is used to make the first SMA wire 510 The two ends of the SMA wire 410 and the bending area of the first SMA wire 410 are at the same height in the Z-axis direction, so that the two ends of the second SMA wire 510 and the bending area of the second SMA wire 510 are at the same height in the Z-axis direction. The axis directions are at the same height.

It is conceivable that the first movable plate 100 has an escape notch 600 , and the escape notch 600 is used to prevent the first movable plate 100 from colliding with the adapter piece 700 .

The optical anti-shake assembly of the embodiment of the present application is described in detail in the form of a specific embodiment as follows:

The substrate 300 includes a second conductive block 320 and a third conductive block 330 that are insulated from each other, three of the second conductive blocks 320 are provided and are insulated from each other, and three of the third conductive blocks 330 are provided and insulated from each other.

The first movable plate 100 has a quadrangular shape, is movably erected on the base plate 300, and can move relative to the base plate 300 along the X-axis direction; the first movable plate 100 includes three mutually insulated first conductive blocks 110. The third conductive block 330 and the first conductive block 110 cooperate one by one to form three mutually independent conductive units.

The second movable plate 200 is movably mounted on the first movable plate 100 , has a quadrangular shape, and can move relative to the first movable plate 100 along the Y-axis direction.

The first driving module 400 is provided with two groups, and the two groups of the first driving modules 400 are symmetrically arranged about the X axis;

The first driving module 400 includes a first SMA wire 410, a first connecting member 420 and a first elastic arm 430; the first SMA wire 410 is bent in a "V" shape, and the vertex area of the "V" shape is connected to the The first connector 420 is in contact with the first SMA wire 410, both ends of the first SMA wire 410 are connected to the substrate 300, and the first SMA wire 410 can be energized and contracted to drive the first movable plate 100 relative to the substrate 300 moves along the X-axis direction; the first connecting member 420 is arranged on the first movable plate 100, the side wall of the first connecting member 420 is provided with a first groove, and the bending area of the first SMA wire 410 abuts against connected in the first groove; the first elastic arm 430 is arranged on the edge of the first movable plate 100, and there is a first gap 810 between the first elastic arm 430 and the first movable plate 100, and the first gap 810 It can be used as a swing space for the first elastic arm 430 .

The second driving module 500 is provided with two groups, and the two groups of the second driving modules 500 are symmetrically arranged about the Y axis;

The second driving module 500 includes a second SMA wire 510, a second connecting member 520 and a second elastic arm 530; the second SMA wire 510 is bent in a "V" shape, and the vertex area of the "V" shape is the same as the The second connecting member 520 abuts, both ends of the second SMA wire 510 are connected to the first movable plate 100 , and the second SMA wire 510 can be energized and contracted to drive the second movable plate 200 moves in the Y-axis direction relative to the base plate 300; the second connecting piece 520 is arranged on the second movable plate 200, the side wall of the second connecting piece 520 is provided with a second groove, and the second SMA wire The bending area of 510 abuts in the second groove; the second elastic arm 530 is arranged on the edge of the second movable plate 200, and there is a second gap 820 between the second elastic arm 530 and the second movable plate 200, The second gap 820 can be used as a swing space for the second elastic arm 530 .

Wherein, the first connecting member 420 and the second connecting member 520 are both located between the first movable plate 100 and the second movable plate 200 .

The electrical design of the optical anti-shake assembly described in this specific embodiment is as follows:

Two ends of the first SMA wire 410 are electrically connected to different second conductive blocks 320 respectively, and one of the second conductive blocks 320 is used as a common pole between the first SMA wires 410;

Two ends of the second SMA wires 510 are respectively electrically connected with different conductive units, and one of the conductive units is used as a common pole between the second SMA wires 510;

The present application also provides a lens assembly, including an optical anti-shake assembly. The structure of the optical anti-shake assembly refers to the above-mentioned embodiments, and has the beneficial technical effects of the above-mentioned embodiments, which will not be repeated here.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims

An optical anti-shake assembly, characterized in that it includes:

substrate;

a first movable plate, which is movably erected on the base plate;

a second movable plate, which is movably erected on the first movable plate;

The first driving module includes a first SMA wire and a first connecting piece, the first connecting piece is arranged on the first movable plate, both ends of the first SMA wire are connected to the base plate, and the first connecting piece is connected to the base plate. An SMA wire is bent and arranged, and its bending area is in contact with the first connector. The first SMA wire can be energized and contracted, so as to drive the first movable plate to move relative to the base plate along the X-axis direction ;

The second driving module includes a second SMA wire and a second connecting member, the second connecting member is disposed on the second movable plate, and both ends of the second SMA wire are connected to the first movable plate Or the substrate is connected; the second SMA wire is bent and arranged, and the bending area of the second SMA wire is in contact with the second connecting piece, and the second SMA wire can be energized and contracted to drive the second movable plate to face each other. The first movable plate moves along the Y-axis direction.
The optical anti-shake assembly according to claim 1, wherein the first driving module is provided with multiple groups, and at least two groups of the first driving module are arranged symmetrically about the Y axis;

There are multiple sets of the second driving modules, and at least two sets of the second driving modules are arranged symmetrically about the X-axis.
The optical anti-shake assembly according to claim 1 or 2, wherein the first SMA wire and the second SMA wire are both bent into a "V" shape, and the apex of the bending region of the first SMA wire is Abutting with the first connecting piece; the vertex of the bending region of the second SMA wire is connected with the second connecting piece.
The optical anti-shake assembly according to claim 1 or 2, wherein the first driving module further comprises a first elastic arm, the first elastic arm is connected to the first movable plate and the base plate, and the The first elastic arm can be elastically deformed in the X-axis direction to allow the first movable plate to move relative to the base plate in the X-axis direction;

The second drive module further includes a second elastic arm, the second elastic arm is connected to the first movable plate and the second movable plate, and the second elastic arm can be elastically deformed in the Y-axis direction to allow The second movable plate moves in the Y-axis direction relative to the first movable plate.
The optical anti-shake assembly according to claim 4, wherein the first elastic arm is arranged on the edge of the first movable plate, and the first elastic arm has a swinging section, and the first movable plate is connected to the first movable plate. There is a first gap between the swing segments of the first swing, and the swing segment of the first elastic arm can swing within the first gap;

The second elastic arm is arranged on the edge of the second movable plate, and the second elastic arm has a swing section, and there is a second gap between the second movable plate and the swing section of the second swing, and the The swinging section of the second elastic arm can swing within the second gap.
The optical anti-shake assembly of claim 4, wherein both ends of the first SMA wire are connected to the substrate, and both ends of the second SMA wire are connected to the first movable plate.
The optical anti-shake assembly according to claim 6, wherein the substrate comprises a second conductive block and a third conductive block which are insulated from each other, the second conductive blocks are provided in multiples and are insulated from each other, so The third conductive blocks are provided with a plurality of and insulated from each other;

The first movable plate includes a plurality of first conductive blocks that are insulated from each other, the second elastic arms are provided with a plurality of and are respectively connected with the first conductive blocks, and the first conductive blocks pass through the first elastic arms. is electrically connected to a third conductive block, and the first conductive block and the third conductive block form a plurality of mutually independent conductive units;

Two ends of the first SMA wire are respectively electrically connected with different second conductive blocks;

Two ends of the second SMA wire are respectively electrically connected with different conductive units;

Both the first connector and the second connector are made of insulating material.
The optical anti-shake assembly according to claim 1 or 2, wherein both ends of the first SMA wire are connected to the substrate, and both ends of the second SMA wire are connected to the substrate.
The optical anti-shake assembly of claim 8, wherein the substrate comprises a plurality of second conductive blocks insulated from each other, and two ends of the first SMA wire and two ends of the second SMA wire are respectively connected to The different second conductive blocks are electrically connected.
A lens assembly, comprising the optical anti-shake assembly according to any one of claims 1 to 9.