Lens anti-shake device and handheld shooting equipment

Abstract

The utility model relates to the technical field of shooting equipment, and provides a lens anti-shake device, which comprises a substrate, a first carrier plate and a second carrier plate which are sequentially stacked from bottom to top along a Z axis, the first carrier plate is suspended on the substrate through the first elastic component; the second carrier plate is suspended on the first carrier plate through a second elastic component; the substrate is provided with a memory alloy wire assembly, the memory alloy wire assembly is connected to the first carrier plate, and the second carrier plate is driven by a memory alloy wire to move relative to the substrate in the XOY plane. Compared with the prior art, the lens anti-shake device occupies a small installation space, the size of the camera module is reduced, the camera module is miniaturized, and finally the handheld shooting equipment is miniaturized.

Description

Technical Field

[0001] The utility model relates to the technical field of shooting equipment, in particular to a lens anti-shake device and a handheld shooting equipment. Background Art

[0002] At present, the camera module with auto focus realizes the focusing and anti-shake functions by driving the lens movement with a VCM (Voice Coil Motor). As the terminal equipment has higher and higher requirements for video recording, the image sensor size of the camera is getting larger and larger, and the lens is getting heavier and heavier. When using VCM to move the lens, the VCM load is getting larger and larger. In order to push the heavier load, the size of the electromagnetic structure inside the VCM is getting larger and larger, which leads to the larger size of the VCM as a whole. In order to provide enough installation space for the VCM, the size of the camera module must also increase, which is not conducive to the miniaturization of the camera module.

[0003] At present, in order to solve the aforementioned problem that the size of the camera module is too large due to the large size of the electromagnetic structure, some manufacturers choose to use memory alloy components to replace the electromagnetic structure to drive the lens.

[0004] For example, the patent document (CN 213023895 U) discloses a camera module, including: a substrate, a photosensitive chip, a lens assembly and an anti-shake actuator. It is mounted above the substrate; the anti-shake actuator includes a movable plate, a fixed plate and an SMA wire (shape memory alloy wire), the fixed plate is arranged on the substrate, the movable plate is arranged between the lens assembly and the fixed plate, and an elastic arm is arranged on each of the four corners of the movable plate, the free end of the elastic arm is connected to the fixed plate, one end of the SMA wire is connected to the fixed plate, and the other end is connected to the movable plate; the photosensitive chip is arranged on the movable plate. When the SMA wire is energized and contracted, it can drive the movable plate to move in a plane perpendicular to the optical axis of the lens assembly, and the movable plate drives the photosensitive chip to move, thereby realizing the anti-shake of the camera module. When the SMA wire is powered off, the deformation elastic force of the four elastic walls can restore the movable plate to its original position, thereby restoring the photosensitive chip to its original position.

[0005] In the above scheme, SMA wire (shape memory alloy wire) is used instead of the traditional electromagnetic structure to drive the photosensitive chip. Compared with the traditional electromagnetic structure, SMA wire (shape memory alloy wire) has fewer components and is simple to assemble. Therefore, the technical effect that can be actually achieved by the above scheme is that the anti-shake actuator can provide a greater driving force and has a smaller volume. However, in the above scheme, the movable plate shares four elastic cantilevers. Due to the different installation positions of the elastic cantilevers, when the SMA wire pulls the movable plate, the force direction of each elastic cantilever is different, which results in different deformation degrees, deformation elastic forces, and deformation directions of each elastic cantilever. This is likely to cause crosstalk between the elastic cantilevers, affecting the movement accuracy of the movable plate, and ultimately affecting the movement accuracy of the photosensitive chip, reducing the anti-shake effect of the camera module.

[0006] Therefore, it is necessary to provide a camera module technical solution that can improve anti-shake accuracy. Utility Model Content

[0007] The utility model provides a lens anti-shake device and a handheld shooting device, which can improve the anti-shake accuracy.

[0008] The technical solution adopted by the utility model is as follows:

[0009] A lens anti-shake device comprises a substrate, a first carrier plate and a second carrier plate which are sequentially stacked from bottom to top along a Z axis;

[0010] The first carrier plate is suspended on the substrate by a first elastic member. After the first carrier plate moves relative to the substrate in the X-axis direction, the first carrier plate can be forced to return to its original position by the elastic force of the first elastic member after deformation.

[0011] The second carrier plate is suspended on the first carrier plate by a second elastic member. After the second carrier plate moves relative to the first carrier plate in the Y-axis direction, the elastic force of the second elastic member after deformation can force the second carrier plate to return to its original position.

[0012] The substrate is provided with a memory alloy wire assembly, which is connected to the second carrier plate. The memory alloy wire assembly drives the second carrier plate to move relative to the substrate in the XOY plane. The second carrier plate drives the first carrier plate to move through the first elastic component.

[0013] In one embodiment, the first elastic member includes two first spring sheets, which are respectively located on opposite sides of the first carrier plate, and the two ends of the first spring sheet are respectively connected to the substrate and the first carrier plate; the first spring sheet is in the shape of a plate; the plate surface of the first spring sheet is parallel to the Z-axis direction, and the plate surface of the first spring sheet is set at an angle to the X-axis direction; the force required for the first spring sheet to undergo elastic deformation in the X-axis direction is less than the force required for the first spring sheet to undergo elastic deformation in the Z-axis direction.

[0014] In one embodiment, the first carrier plate includes a first side and a second side that are oppositely disposed, and the first side and the second side are parallel to the Y-axis direction; the base plate includes a third side and a fourth side that are oppositely disposed, and the third side and the fourth side are parallel to the Y-axis direction; the third side corresponds to the position of the first side; and the second side corresponds to the position of the fourth side;

[0015] Two ends of one of the two first elastic sheets are respectively fixed to the first side and the third side, and two ends of the other one are respectively fixed to the second side and the fourth side.

[0016] In one embodiment, the outer edge of the first side includes a first connection portion extending outwardly along the X-axis direction; the outer edge of the second side includes a second connection portion extending outwardly along the X-axis direction; the third side includes a third connection portion convexly disposed on the top surface of the substrate; the fourth side includes a fourth connection portion convexly disposed on the top surface of the substrate;

[0017] The first connection portion and the third connection portion are disposed opposite to each other and spaced apart in the Y-axis direction; the second connection portion and the fourth connection portion are disposed opposite to each other and spaced apart in the Y-axis direction; a line connecting the first connection portion and the second connection portion intersects a line connecting the third connection portion and the fourth connection portion;

[0018] Two ends of one of the two first elastic sheets are respectively fixed to the outer wall of the first connection portion and the third connection portion, and two ends of the other one are respectively fixed to the outer wall of the second connection portion and the fourth connection portion.

[0019] In one embodiment, the second elastic member includes two second spring sheets, which are respectively located on opposite sides of the second carrier plate, and the two ends of the second spring sheet are respectively connected to the first carrier plate and the second carrier plate; the second spring sheet is plate-shaped; the plate surface of the second spring sheet is parallel to the Z-axis direction, and the plate surface of the second spring sheet is set at an angle to the Y-axis direction; the force required for the second spring sheet to undergo elastic deformation in the Y-axis direction is less than the force required for the second spring sheet to undergo elastic deformation in the Z-axis direction.

[0020] In one embodiment, the first carrier plate includes a fifth side and a sixth side that are opposite to each other, and the fifth side and the sixth side are parallel to the X-axis direction; the second carrier plate includes a seventh side and an eighth side that are opposite to each other, and the seventh side and the eighth side are parallel to the X-axis direction; the fifth side corresponds to the seventh side in position; the sixth side corresponds to the eighth side in position; one of the two second spring sheets is fixedly connected to the fifth side and the seventh side at both ends, and the other is fixedly connected to the sixth side and the eighth side at both ends.

[0021] In one embodiment, the outer edge of the fifth side includes a fifth connection portion extending outwardly along the Y-axis direction; the outer edge of the sixth side includes a sixth connection portion extending outwardly along the Y-axis direction; the outer edge of the seventh side includes a seventh connection portion extending outwardly along the Y-axis direction; the outer edge of the eighth side includes an eighth connection portion extending outwardly along the Y-axis direction;

[0022] The fifth connection portion and the seventh connection portion are arranged opposite to each other and at intervals; the sixth connection portion and the eighth connection portion are arranged opposite to each other and at intervals; a line connecting the fifth connection portion and the sixth connection portion intersects a line connecting the seventh connection portion and the eighth connection portion;

[0023] Two ends of one of the two second elastic sheets are respectively fixed to the outer side wall of the fifth connection portion and the outer side wall of the seventh connection portion, and two ends of the other one are respectively fixed to the outer side wall of the sixth connection portion and the outer side wall of the eighth connection portion.

[0024] In one embodiment, the memory alloy wire assembly includes four conductive components and four memory alloy wires distributed in a rectangular shape; two conductive components located on one diagonal of the rectangle are fixed to the second carrier plate, and two conductive components located on the other diagonal of the rectangle are fixed to the substrate; adjacent conductive components are electrically connected through a memory alloy wire, and the memory alloy wires are located at intervals on the outer edge of the second carrier plate; after the memory alloy wires are energized, tension is applied to the corresponding conductive components by the memory alloy wires.

[0025] In one embodiment, the first elastic member includes two conductive first spring sheets, the two first spring sheets connect the substrate and the first carrier plate, and the conductive member on the substrate and the conductive member on the first carrier plate are electrically connected through the first spring sheets;

[0026] The second elastic member includes two conductive second elastic sheets, the two second elastic sheets connect the first carrier plate and the second carrier plate, and the conductive member on the first carrier plate is electrically connected to the conductive member on the second carrier plate through the second elastic sheets.

[0027] A handheld shooting device comprises a camera module, wherein the camera module comprises a lens assembly and the above-mentioned lens anti-shake device, wherein a first carrier plate and a second carrier plate are both provided with through holes; the lens assembly is arranged on the second carrier plate; and the lens assembly cooperates with the through hole.

[0028] The beneficial effects of the utility model are:

[0029] Compared with the prior art, the present application sets the first carrier plate on the substrate in suspension through the first elastic member, and sets the second carrier plate on the first carrier plate in suspension through the second elastic member. The memory alloy wire assembly is connected to the second carrier plate, so that the memory alloy wire assembly drives the second carrier plate to move. When the second carrier plate is displaced along the X-axis direction, the first carrier plate can be driven to move. After the first carrier plate moves relative to the substrate in the X-axis direction, the first elastic member is elastically deformed, and the elastic force of the deformed first elastic member can force the first carrier plate to return to its original position. At the same time, the first carrier plate drives the second carrier plate to return to its original position through the second elastic member. After the second carrier plate moves relative to the first carrier plate in the Y-axis direction, the second elastic member is elastically deformed, and the elastic force of the deformed second elastic member can force the second carrier plate to return to its original position.

[0030] From the above, it can be seen that the second carrier plate is restored to its original position in the X-axis direction through the first elastic component, and is restored to its original position in the Y-axis direction through the second elastic component. The working processes of the first elastic component and the second elastic component are independent of each other. This can avoid the deformation process or elastic recovery process of one of them affecting the deformation process or elastic recovery process of the other, thereby greatly reducing the degree of crosstalk between the two, and ultimately making the position change of the second carrier plate more accurate, thereby improving the anti-shake accuracy of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the utility model and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the utility model, but should not constitute a limitation of the utility model.

[0032] Figure 1 It is a schematic diagram of the overall structure of the lens anti-shake device according to an embodiment of the utility model;

[0033] Figure 2 This is a schematic diagram of the combined structure of the substrate, the first carrier plate and the second carrier plate of an embodiment of the utility model;

[0034] Figure 3 A schematic diagram of the overall structure of the lens anti-shake device according to an embodiment of the utility model from another angle;

[0035] Figure 4 This is a schematic diagram of the combined structure of the substrate, the first carrier plate, and the second carrier plate of an embodiment of the utility model;

[0036] Figure 5 This is a schematic diagram of the combined structure of the substrate and the first carrier plate of an embodiment of the utility model;

[0037] Figure 6 This is a schematic diagram of the combined structure of the first carrier plate and the second carrier plate of an embodiment of the utility model;

[0038] Figure 7 It is a schematic diagram of the top structure of the lens anti-shake device according to an embodiment of the utility model;

[0039] Figure 8 This is a schematic diagram of the working states of the first carrier plate, the second carrier plate, the first spring sheet and the second spring sheet according to an embodiment of the utility model;

[0040] Fig. 9 It is a schematic diagram of the second working state of the first carrier plate, the second carrier plate, the first spring sheet and the second spring sheet according to an embodiment of the utility model;

[0041] Fig.10 It is a schematic diagram of the working state 3 of the first carrier plate, the second carrier plate, the first spring sheet and the second spring sheet according to an embodiment of the present utility model;

[0042] Fig.11 It is a schematic diagram of a fourth working state of the first carrier plate, the second carrier plate, the first spring sheet and the second spring sheet according to an embodiment of the present utility model;

[0043] Fig.12 It is a schematic diagram of the bending state of the first elastic piece according to an embodiment of the utility model.

[0044] Notes on the attached drawings:

[0045] 10. substrate; 11. third connection portion; 12. fourth connection portion;

[0046] 20. first carrier plate; 21. first side; 211. first connection portion; 22. second side; 221. second connection portion; 23. fifth side; 231. fifth connection portion; 24. sixth side; 241. sixth connection portion; 25. third side; 26. fourth side;

[0047] 30. second carrier plate; 31. seventh side; 311. seventh connection portion; 32. eighth side; 321. eighth connection portion;

[0048] 40. A first elastic member; (41a, 41b), a first elastic sheet;

[0049] 50, second elastic member; (51a, 51b), second elastic sheet;

[0050] 61. Metal seat; 62. Memory alloy wire; 63. Metal clamp. DETAILED DESCRIPTION

[0051] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0052] The present embodiment provides a handheld shooting device (not shown in the figure), which can be a mobile phone, a camera, a watch, etc., which includes a camera module. The camera module at least includes a lens assembly (not shown in the figure) and a lens anti-shake device, and the lens assembly is arranged on the second carrier plate 30. Among them, the lens assembly includes a lens, a lens mount and a driving motor for focusing, the lens mount is fixed to the lens anti-shake device, the driving motor is arranged in the lens mount, and the lens is arranged on the driving motor. Among them, the driving motor can be replaced by a common voice coil motor or other motor on the market, as long as it can realize the driving lens and realize the focusing of the camera module. In order to facilitate the description of the technical solution of the present application, the following driving motor is exemplified by a voice coil motor. The lens anti-shake device drives the lens mount, the voice coil motor and the lens to move synchronously in the XOY plane, thereby changing the relative position of the lens and the chip of the camera module to realize the anti-shake of the camera module. The voice coil motor can drive the lens to move along the Z axis, so as to focus the camera module.

[0053] In other embodiments, the lens assembly may only include a lens mount and a lens. The lens mount is disposed on a lens anti-shake device, and the lens is disposed on the lens mount. The lens anti-shake device is used to drive the lens mount and the lens to move in the XOY plane to achieve camera module anti-shake.

[0054] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment, the lens anti-shake device includes a substrate 10, a first carrier plate 20 and a second carrier plate 30 which are stacked in sequence from bottom to top along the Z axis; the first carrier plate 20 is suspended on the substrate 10 by a first elastic member 40, and after the first carrier plate 20 is displaced relative to the substrate 10 in the X-axis direction, the first carrier plate 20 can be forced to return to its original position by the elastic force of the first elastic member 40 after deformation; the second carrier plate 30 is suspended on the first carrier plate 20 by a second elastic member 50, and after the second carrier plate 30 is displaced relative to the first carrier plate 20 in the Y-axis direction, the second carrier plate 30 can be forced to return to its original position by the elastic force of the second elastic member 50 after deformation.

[0055] The substrate 10 is provided with a memory alloy wire assembly, which is connected to the second carrier plate 30, and the second carrier plate 30 is driven to move relative to the substrate 10 in the XOY plane by the memory alloy wire 62. Specifically, the process of the memory alloy assembly driving the second carrier plate 30 includes:

[0056] After the memory alloy wire assembly is powered on, it can generate a pulling force on the second carrier plate 30. When the pulling force is along the Y-axis direction, under the action of the pulling force, the first carrier plate 20, the first elastic member 40, the second carrier plate 30 and the second elastic member 50 undergo structural changes or position changes, including: the second carrier plate 30 moves relative to the first carrier plate 20 and the substrate 10 in the Y-axis direction, and the second elastic member 50 undergoes elastic deformation; the relative position of the first carrier plate 20 and the substrate 10 remains basically unchanged; when the memory alloy wire assembly is powered off, the pulling force disappears, and the second elastic member 50 drives the second carrier plate 30 to move through its own deformation elastic force, so that the second carrier plate 30 returns to its original position.

[0057] When the pulling force is along the X-axis direction, the structural changes or position changes of the first carrier plate 20, the first elastic member 40, the second carrier plate 30 and the second elastic member 50 include: the relative position of the first carrier plate 20 and the second carrier plate 30 remains basically unchanged, the second carrier plate 30 drives the first carrier plate 20 to move through the second elastic member 50, and finally the first carrier plate 20 and the second carrier plate 30 move relative to the substrate 10 in the X-axis direction. During this process, the second elastic member 50 basically does not undergo elastic deformation, while the first elastic member 40 undergoes elastic deformation; when the memory alloy wire assembly is powered off, the pulling force disappears, and the first elastic member 40 drives the first carrier plate 20 to move through its own deformation elastic force, so that the first carrier plate 20 returns to its original position, and the second carrier plate 30 also returns to its original position.

[0058] When the pulling force is along other directions in the XOY plane, the pulling force can be decomposed into a component force along the X-axis direction and a component force along the Y-axis direction. Under the action of the two components, the first carrier plate 20 and the second carrier plate 30 move relative to the substrate 10 in the X-axis direction, and the first elastic member 40 undergoes elastic deformation; the second carrier plate 30 moves relative to the first carrier plate 20 and the substrate 10 in the Y-axis direction, and the second elastic member 50 undergoes elastic deformation; in the aforementioned process, the second carrier plate 30 is displaced both on the X-axis and on the Y-axis. When the memory alloy wire assembly is powered off, the pulling force disappears, the first elastic member 40 drives the first carrier plate 20 to move through its own deformation elastic force, so that the first carrier plate 20 returns to its original position, and the second elastic member 50 drives the second carrier plate 30 to return to its original position through its own deformation elastic force.

[0059] From the above, it can be seen that by changing the direction of the pulling force of the memory alloy wire assembly on the second carrier plate 30, the second carrier plate 30 can be moved in the XOY plane. Finally, the second carrier plate 30 drives the lens assembly to move in the XOY plane to change the relative position between the lens and the chip of the camera module, thereby realizing lens displacement compensation and finally realizing camera module anti-shake.

[0060] Compared with the prior art, this embodiment has the following significant improvements:

[0061] 1. In this embodiment, a memory alloy wire assembly is used to provide a power source for the moving lens. In order to cooperate with the driving mode of the memory alloy wire assembly, in this embodiment, the first carrier plate 20 is suspended on the substrate 10, and the second carrier plate 30 is suspended on the first carrier plate 20, so that the memory alloy wire assembly connects the substrate 10 and the second carrier plate 30. When the memory alloy wire assembly is powered on, the memory alloy assembly contracts and generates tension. The tension of the memory alloy wire assembly drives the second carrier plate 30 to move relative to the substrate 10, and then the second carrier plate 30 drives the lens to move, so as to achieve camera module anti-shake. When the second carrier plate 30 moves, it also drives the first carrier plate 20 to move. Compared with the prior art, the lens anti-shake device of this embodiment uses a memory alloy wire assembly with a larger driving force to replace the traditional electromagnetic structure to drive the lens. Under the premise of providing the same force, the overall structure of the memory alloy wire assembly is smaller in volume than the electromagnetic structure, and the structure is simpler. Therefore, the lens anti-shake device of this embodiment occupies less installation space, which is conducive to reducing the volume of the camera module, thereby realizing the miniaturization of the camera module, and finally realizing the miniaturization of the handheld shooting device.

[0062] 2. When the pulling force applied by the memory alloy wire assembly to the second carrier plate 30 can be decomposed into a component force along the X-axis direction and a component force along the Y-axis direction, the displacement process of the second carrier plate 30 along the X-axis direction will only cause the first elastic member 40 to undergo elastic deformation, while the second elastic member 50 will basically not undergo elastic deformation. Similarly, the displacement process of the second carrier plate 30 along the Y-axis direction will only cause the second elastic member 50 to undergo elastic deformation, while the first elastic member 40 will basically not undergo elastic deformation. It can be seen that the deformation processes of the first elastic member 40 and the second elastic member 50 are independent of each other, so that the deformation process or elastic recovery process of one can be prevented from affecting the deformation process or elastic recovery process of the other, thereby reducing the problem of crosstalk between the working processes of the two, which is conducive to improving the accuracy of the position change of the second carrier plate 30.

[0063] In this embodiment, the first substrate 10, the first carrier plate 20 and the second carrier plate 30 are all provided with through holes, and the axes of the through holes of the three coincide. The lens seat of the lens assembly is glued to the inner wall of the through hole of the second carrier plate 30, or the lens assembly is glued to the top surface of the second carrier plate 30, and the optical axis of the lens assembly coincides with the axis of the through hole of the second carrier plate 30. The chip of the camera module is arranged below the substrate 10, and the position of the chip corresponds to the position of the through hole of the substrate 10, so that the chip is located on the optical axis of the lens assembly, and the external light passes through the lens assembly and the through hole from top to bottom in sequence, and finally reaches the chip, and the chip generates a corresponding image signal.

[0064] Next, the structures and connection relationship among the first carrier plate 20 , the base plate 10 and the first elastic member 40 are further described.

[0065] Please combine Figure 1 , Figure 2 and Figure 5 In this embodiment, the first carrier plate 20 includes a first side 21 and a second side 22 that are oppositely disposed, and the first side 21 and the second side 22 are parallel to the Y-axis direction; the substrate 10 includes a third side 25 and a fourth side 26 that are oppositely disposed, and the third side 25 and the fourth side 26 are parallel to the Y-axis direction. Specifically, the shape of the first carrier plate 20 is roughly square, the first carrier plate 20 is located above the substrate 10, the third side 25 corresponds to the position of the first side 21, and the first side 21 is located above the third side 25; the second side 22 corresponds to the position of the fourth side 26, and the second side 22 is located above the fourth side 26. In other embodiments, the shape of the first carrier plate 20 can be designed into other shapes according to actual needs, such as circular, elliptical, triangular, etc.

[0066] Further, the first elastic member 40 includes two first elastic sheets (41a, 41b); two ends (41a1, 41a2) of one of the two first elastic sheets (41a, 41b) 41a are respectively fixed to the first side 21 and the third side 25, and two ends (41ba1, 41b2) of the other 41b are respectively fixed to the second side 22 and the fourth side 26. The first carrier plate 20 is supported by the two first elastic sheets (41a, 41b), so that the first carrier plate 20 is suspended above the substrate 10, so as to avoid the increase of the resistance of the first carrier plate 20 to move due to the bottom surface of the first carrier plate 20 contacting the top surface of the substrate 10, and in addition, an installation space can be formed between the first carrier plate 20 and the top surface of the substrate 10, and the installation space can be used to install electrical components.

[0067] Furthermore, the force required for the first spring piece (41a, 41b) to be elastically deformed in the X-axis direction is smaller than the force required for the first spring piece (41a, 41b) to be elastically deformed in the Z-axis direction. That is, the force required for the first spring piece (41a, 41b) to be deformed along the Z-axis is larger, so that the first spring piece (41a, 41b) can bear a heavier load without being greatly deformed, and the load-bearing capacity of the first spring piece (41a, 41b) is improved, and finally the upper limit of the load of the lens anti-shake device of this embodiment can be improved, so that it can bear a heavier lens assembly. In addition, the force required for the first spring piece (41a, 41b) to be deformed in the X-axis direction is smaller, so that the first spring piece (41a, 41b) can maintain a higher load-bearing capacity, and the memory alloy wire assembly can provide a smaller force to allow the first carrier plate 20 to drive the first spring piece (41a, 41b) to deform in the X-axis direction, which is beneficial to reduce the energy consumption of the memory alloy wire assembly. Specifically, as Fig.12 As shown, the force required for the first elastic piece 41a to be elastically deformed in the X-axis direction is D2, and the force required for the first elastic piece 41b to be elastically deformed in the Z-axis direction is D1. D2 is less than D1, and the first elastic piece 41a is bent and deformed under the action of D2. The state of the first elastic piece 41a after bending and deformation is as shown in FIG. Fig.12 shown.

[0068] In this embodiment, in order to make the force required for the first spring piece (41a, 41b) to undergo elastic deformation in the X-axis direction smaller than the force required for the first spring piece (41a, 41b) to undergo elastic deformation in the Z-axis direction, the solution adopted in this embodiment includes: the first spring piece (41a, 41b) is in the shape of a plate. According to the physical properties of the plate-like component, when the direction of the force applied to the plate-like component is parallel to the plate surface of the plate-like component, the plate-like component has a higher anti-deformation ability, that is, a larger force is required for its deformation; when the direction of the force applied to the plate-like component is set at an angle to the plate surface of the plate-like component, the plate-like component has a lower anti-deformation ability, that is, a smaller force is required for its deformation. In the solution corresponding to the present embodiment, the plate surface of the first spring piece (41a, 41b) is parallel to the Z-axis direction, and the plate surface of the first spring piece (41a, 41b) is arranged at an angle to the X-axis direction, so that the force required for the first spring piece (41a, 41b) to deform in the X-axis direction is less than the force required for the first spring piece (41a, 41b) to deform in the Z-axis direction. Of course, in other embodiments, the force required for the first spring piece (41a, 41b) to deform can be changed by changing the material of the first spring piece (41a, 41b), changing the surface structure shape of the first spring piece (41a, 41b), etc. to meet the above requirements.

[0069] In this embodiment, the outer edge of the first side 21 includes a first connection portion 211 extending outwardly along the X-axis direction. The outer edge of the second side 22 includes a second connection portion 221 extending outwardly along the X-axis direction. The third side 25 includes a third connection portion 11 protruding from the top surface of the substrate 10; the fourth side 26 includes a fourth connection portion 12 protruding from the top surface of the substrate 10. Among them, the first connection portion 211 and the third connection portion 11 are arranged oppositely and spaced apart; the second connection portion 221 and the fourth connection portion 12 are arranged oppositely and spaced apart; the line connecting the first connection portion 211 and the second connection portion 221 intersects the line connecting the third connection portion 11 and the fourth connection portion 12.

[0070] The two ends (41a2, 41a1) of one of the two first elastic sheets (41a, 41b) 41a are respectively fixed to the outer wall of the first connection part 211 and the third connection part 11, and the two ends (41b1, 41b2) of the other 41b are respectively fixed to the second connection part 221 and the fourth connection part 12. Specifically, the two ends (41a2, 41a1) of one of the first elastic sheets 41a are respectively fixed to the outer wall of the first connection part 211 and the inner wall of the third connection part 11 by glue, so that a gap can be formed between the first elastic sheet 41a and the first side 21, and the gap can provide sufficient space for the first elastic sheet 41a to bend and deform along the X-axis direction. In addition, the two ends (41b1, 41b2) of another first spring piece 41b are fixed to the outer wall of the second connecting part 221 and the inner wall of the fourth connecting part 12 by glue, respectively, so that a gap is also formed between the first spring piece 41b and the first vertical side wall, and the gap can provide sufficient space for the first spring piece 41b to bend and deform along the X-axis direction.

[0071] In the above scheme, the first connection part 211 and the second connection part 221 are the supporting points of the two first spring pieces (41a, 41b) on the first carrier plate 20, and the first connection part 211 and the second connection part 221 are approximately located at two diagonal corners of the first carrier plate 20, so that the two first spring pieces (41a, 41b) can evenly support the first carrier plate 20, so that the first carrier plate 20 is approximately parallel to the substrate 10. In addition, the two first spring pieces (41a, 41b) are respectively connected to the outer side wall of the first connection part 211 and the outer side wall of the second connection part 221 of the first carrier plate 20. The two first spring sheets (41a, 41b) are arranged at intervals on the outer sides of the first carrier plate 20, and the two first spring sheets (41a, 41b) are located above the substrate 10, so that the two first spring sheets (41a, 41b) are not between the bottom surface of the first carrier plate 20 and the top surface of the substrate 10. Since the two first spring sheets (41a, 41b) are not arranged between the bottom surface of the first carrier plate and the top surface of the substrate, there is no first spring sheet blocking the first carrier plate and the substrate, so that a smaller interval can be maintained between the first carrier plate 20 and the top surface of the substrate 10, which is beneficial to reducing the height of the lens anti-shake device in the Z-axis direction, so that the structure of the lens anti-shake device is more compact and the volume is smaller.

[0072] In other embodiments, the structure of the first spring sheet (41a, 41b) can be changed or the positional relationship between the first spring sheet (41a, 41b) and the first carrier plate 20 can be changed. For example, the shape and structure of the first spring sheet (41a, 41b) remain unchanged, the first spring sheet (41a, 41b) is located between the first carrier plate 20 and the substrate 10, and the top wall of one end of the first spring sheet (41a, 41b) is connected to the bottom surface of the first carrier plate 20, so that the first spring sheet (41a, 41b) can also support the first carrier plate 20, but the distance between the substrate 10 and the first carrier plate 20 is increased, thereby increasing the height of the lens anti-shake device. However, its advantage is that the top surface of the substrate 10 and the bottom surface of the first carrier plate 20 are spaced apart, so as to form a hidden space between the two, and the first spring sheet (41a, 41b) can be hidden in the hidden space between the first carrier plate 20 and the top surface of the substrate 10, thereby improving the compactness of the structure of the lens anti-shake device. For another example, the first spring sheets (41a, 41b) are located at the outer edge of the first carrier plate 20, and the ends of the first spring sheets (41a, 41b) are bent inward between the first carrier plate 20 and the top surface of the substrate 10, and are attached to and fixed to the bottom surface of the first carrier plate 20 by glue, so that the first spring sheets (41a, 41b) can also support the first carrier plate 20.

[0073] Next, the structures, positional relationships and connection relationships among the first carrier plate 20 , the second carrier plate 30 and the second elastic member 50 are further described.

[0074] Please combine Figure 1 , Figure 2 and Figure 6 In one embodiment, the first carrier plate 20 further includes a fifth side 23 and a sixth side 24 that are arranged opposite to each other, and the fifth side 23 and the sixth side 24 are parallel to the X-axis direction; the second carrier plate 30 includes a seventh side 31 and an eighth side 32 that are arranged opposite to each other, and the seventh side 31 and the eighth side 32 are parallel to the X-axis direction. The second carrier plate 30 is located above the first carrier plate 20, and the fifth side 23 corresponds to the seventh side 31; the sixth side 24 corresponds to the eighth side 32. In other embodiments, the shapes of the first carrier plate 20 and the second carrier plate 30 can be designed into other shapes according to actual needs, such as circular, elliptical, triangular, etc.

[0075] The second elastic member 50 includes two second elastic sheets (51a, 51b); two ends (51a1, 51a2) of one (51a) of the two second elastic sheets 51 are respectively fixed to the fifth side 23 and the seventh side 31, and two ends of the other (51b) are respectively fixed to the sixth side 24 and the eighth side 32. The second carrier plate 30 is supported by the two second elastic sheets 51, so that the second carrier plate 30 is suspended above the first carrier plate 20, so as to avoid the increase of the resistance to the movement of the second carrier plate 30 due to the bottom surface of the second carrier plate 30 contacting the top surface of the first carrier plate 20.

[0076] The force required for the two second spring pieces (51a, 51b) to be elastically deformed on the Y axis is less than the force required for the two second spring pieces (51a, 51b) to be elastically deformed on the Z axis. That is, the force required for the two second spring pieces (51a, 51b) to be deformed along the Z axis is relatively large, so that the second spring pieces (51a, 51b) can bear a heavier load without being deformed significantly, and the load-bearing capacity of the second spring pieces (51a, 51b) is improved, and finally the load upper limit of the lens anti-shake device of the present embodiment can also be improved, so that it can bear a heavier lens assembly. In addition, the force required for the two second spring pieces (51a, 51b) to be deformed along the Y axis direction is relatively small, so that the second spring pieces (51a, 51b) can be deformed in the Y axis direction by the second carrier plate 30 under the premise of maintaining a relatively high load-bearing capacity, and the memory alloy wire assembly can be deformed by providing a relatively small force, which is conducive to reducing the energy consumption of the memory alloy wire assembly. In this embodiment, in order to make the force required for the second spring pieces (51a, 51b) to undergo elastic deformation in the Y-axis direction smaller than the force required for the second spring pieces (51a, 51b) to undergo elastic deformation in the Z-axis direction, the solution adopted in this embodiment includes: the shapes of the two second spring pieces (51a, 51b) are both plate-shaped. According to the physical properties of the plate-shaped component, when the direction of the force applied to the plate-shaped component is parallel to the plate surface of the plate-shaped component, the plate-shaped component has a higher anti-deformation ability, that is, a higher elastic coefficient; when the direction of the force applied to the plate-shaped component is set at an angle to the plate surface of the plate-shaped component, the plate-shaped component has a lower anti-deformation ability, that is, a lower elastic coefficient. In the solution corresponding to this embodiment, the plate surface of the second spring piece (51a, 51b) is parallel to the Z-axis direction, and the plate surface of the second spring piece (51a, 51b) is set at an angle to the X-axis direction, so that the force required for the second spring piece (51a, 51b) to be elastically deformed in the X-axis direction is less than the force required for the second spring piece (51a, 51b) to be elastically deformed in the Z-axis direction. Specifically, the deformation state of the second spring piece (51a, 51b) is similar to the deformation state of the first spring piece (41a, 41b), which can be referred to Fig.12 .

[0077] Of course, in other embodiments, the force required for the elastic deformation of the second spring pieces (51a, 51b) may be changed to meet the aforementioned requirements by changing the material of the second spring pieces (51a, 51b) or changing the surface structure of the second spring pieces (51a, 51b).

[0078] In this embodiment, the outer edge of the fifth side 23 includes a fifth connection portion 231 extending outwardly from the third side 25 along the Y-axis direction; the outer edge of the sixth side 24 includes a sixth connection portion 241 extending outwardly along the Y-axis direction; the outer edge of the seventh side 31 includes a seventh connection portion 311 extending outwardly along the Y-axis direction; the outer edge of the eighth side 32 includes an eighth connection portion 321 extending outwardly along the Y-axis direction;

[0079] The fifth connection portion 231 and the seventh connection portion 311 are disposed opposite to each other and spaced apart; the sixth connection portion 241 and the eighth connection portion 321 are disposed opposite to each other and spaced apart; the line connecting the fifth connection portion 231 and the sixth connection portion 241 crosses the line connecting the seventh connection portion 311 and the eighth connection portion 321;

[0080] The two ends (51a1, 51a2) of one of the two second elastic pieces (51a, 51b) 51a are respectively fixed to the outer wall of the fifth connection part 231 and the outer wall of the seventh connection part 311, and the two ends (51b2, 51b1) of the other 51b are respectively fixed to the outer wall of the sixth connection part 241 and the outer wall of the eighth connection part 321. Specifically, the two ends (51a1, 51a2) of one of the second elastic pieces 51a are respectively fixed to the outer wall of the fifth connection part 231 and the outer wall of the seventh connection part 311 by glue, so that a gap is formed between the third side 25 and the fifth side of the second elastic piece 51a, and the two gaps can provide sufficient space for the deformation process of the second elastic piece 51a. In addition, the two ends (51b2, 51b1) of another second elastic piece 51b are fixed to the outer wall of the sixth connecting portion 241 and the inner wall of the eighth connecting portion 321 by glue, respectively, so that a gap can be formed between the second elastic piece 51b and the fourth side 26 and the fifth side respectively. The two gaps can provide sufficient space for the second elastic piece 51b to bend and deform along the Y-axis direction.

[0081] In the aforementioned scheme, the seventh connection part 311 and the eighth connection part 321 are the supporting points of the two second spring pieces 51 for the first carrier plate 20. The seventh connection part 311 and the eighth connection part 321 are roughly located on the two diagonals of the second carrier plate 30, so that the two second spring pieces (51a, 51b) can evenly support the second carrier plate 30, so that the second carrier plate 30 is roughly parallel to the first carrier plate 20. In addition, the two second spring sheets (51a, 51b) are connected to the outer wall of the fifth connecting part 231, the outer wall of the sixth connecting part 241, the outer wall of the seventh connecting part 311 and the outer wall of the eighth connecting part 321. The two second spring sheets (51a, 51b) are located at intervals on the outer sides of the first carrier plate 20 and the second carrier plate 30, so that the two second spring sheets (51a, 51b) are not on the top surface of the first carrier plate 20. Since there is no obstruction of the second spring sheets (51a, 51b), a smaller interval can be maintained between the first carrier plate 20 and the second carrier plate 30, which is beneficial to reducing the height of the lens anti-shake device in the Z-axis direction, making the structure of the lens anti-shake device more compact and smaller in size.

[0082] In other embodiments, the structure of the second elastic sheet 51 can be changed or the positional relationship between the second elastic sheet 51 and the second carrier plate 30 can be changed. For example, the shape and structure of the second elastic sheet 51 remain unchanged, the second elastic sheet 51 is located between the first carrier plate 20 and the second carrier plate 30, the top wall of one end of the second elastic sheet 51 is connected to the bottom surface of the second carrier plate 30, and the bottom wall of the other end of the second elastic sheet 51 is connected to the top surface of the first carrier plate 20, so that the second elastic sheet 51 can also support the second carrier plate 30, but because a position for the second elastic sheet 51 to be installed needs to be reserved between the first carrier plate 20 and the second carrier plate 30, the distance between the first carrier plate 20 and the second carrier plate 30 is increased, thereby increasing the height of the lens anti-shake device, however, its advantage is: a hidden space is formed between the top surface of the first carrier plate 20 and the bottom surface of the second carrier plate 30, and the second elastic sheet 51 can be hidden in the hidden space between the first carrier plate 20 and the second carrier plate 30, thereby improving the compactness of the structure of the lens anti-shake device. For another example, the second spring clip 51 is located at the outer edge of the first carrier plate 20 and the second carrier plate 30, one end of the second spring clip 51 is bent inward between the first carrier plate 20 and the second carrier plate 30, and is attached to and fixed to the bottom surface of the first carrier plate 20 by glue, and the other end of the second spring clip 51 is bent inward between the first carrier plate 20 and the second carrier plate 30, and is attached to and fixed to the bottom surface of the second carrier plate 30 by glue, so that the second spring clip 51 can also support the second carrier plate 30.

[0083] In this embodiment, both the first spring pieces (41a, 41b) and the second spring pieces (51a, 51b) are conductive. The conductive components on the substrate 10 are electrically connected to the conductive components on the first carrier plate 20 through the first spring pieces (41a, 41b), and the conductive components on the first carrier plate 20 are electrically connected to the conductive components on the second carrier plate 30 through the second spring pieces (51a, 51b). Specifically, the first spring sheet (41a, 41b) and the second spring sheet (51a, 51b) are both conductive metal spring sheets, such as copper sheets, aluminum sheets, etc.; the conductive component on the substrate 10 can be an integrated circuit formed on the substrate 10, and the integrated circuit is welded to the first spring sheet 41; the first carrier board 20 can be a circuit board, and the conductive component on the first carrier board 20 can be an integrated circuit formed on the first carrier board 20, and the integrated circuit is welded to the first spring sheet (41a, 41b) and to the second spring sheet (51a, 51b); the second carrier board 30 can be a circuit board, and the conductive component on the second carrier board 30 can be an integrated circuit formed on the second carrier board 30, and the second spring sheet (51a, 51b) is welded to the integrated circuit.

[0084] In other embodiments, the first spring sheet (41a, 41b) may be a metal spring sheet, one side of which is provided with a flexible circuit board, the metal spring sheet supports the first carrier plate 20, and the flexible circuit board electrically connects the conductive member of the substrate 10 and the conductive member of the first carrier plate 20. The structure of the second spring sheet 51 is the same as that of the first spring sheet (41a, 41b).

[0085] Next, the structure and connection relationship of the memory alloy wire assembly are further explained.

[0086] In this embodiment, the memory alloy wire assembly includes four conductive components and four memory alloy wires distributed in a rectangular shape. Two conductive components located on one diagonal of the rectangle are fixed to the second carrier plate 30. Two conductive components located on the other diagonal of the rectangle are fixed to the substrate 10. Adjacent conductive components are electrically connected by a memory alloy wire 62, and the memory alloy wire 62 is located at intervals on the outer edge of the second carrier plate 30. After the memory alloy wire 62 is energized, the memory alloy wire 62 applies tension to the corresponding conductive component.

[0087] Specifically, the four conductive members are located at the same height, and the four memory alloy wires 62 are arranged in a rectangular shape, wherein two opposite memory alloy wires 62 are extended along the X-axis direction, and the other two memory alloy wires 62 are extended along the Y-axis direction. The two conductive members fixedly connected to the second carrier plate 30 have the same structure, and both are metal clamps 63 fixedly connected to the top surface of the second carrier plate 30. The second carrier plate 30 is a circuit board, and the metal clamps 63 are electrically connected to the integrated circuit on the second carrier plate 30. The metal clamps 63 can be formed by bending a metal sheet, and the end of the memory alloy wire 62 is clamped by the metal clamps 63, so that the metal clamps 63 can be detachably connected to the end of the memory alloy wire 62, and can also be electrically connected to the end of the memory alloy wire 62.

[0088] In an application scenario, two memory alloy wires extending along the X-axis are energized, and the two memory alloy wires contract to generate tension, wherein the tension generated by one memory alloy wire is F1, and the tension generated by the other memory alloy wire is F2.

[0089] Combination Figure 7 and Figure 8 When F1 and F2 are of the same size and in the same direction, the second carrier plate 30 is translated along the X-axis direction, and the second carrier plate 30 drives the lens assembly to translate along the X-axis to achieve camera module anti-shake. In this process, the second carrier plate 30 drives the first carrier plate 20 to move relative to the substrate 10 along the X-axis direction through the two second spring pieces (51a, 51b), and the first carrier plate 20 drives the two first spring pieces (41a, 41b) to bend. When the memory alloy wire is powered off, the tension F1 and the tension F2 disappear, and the deformation elastic force of the two first spring pieces (41a, 41b) drives the first carrier plate 20 to return to its original position. The first carrier plate 20 drives the second carrier plate 30 to return to its original position through the two second spring pieces (51a, 51b), and the second carrier plate 30 drives the lens assembly to return to its original position.

[0090] See also Fig. 9 When F1 and F2 are of the same size, and the direction of F1 is opposite to that of F2, under the limiting action of the second spring sheet (51a, 51b), the second carrier plate 30 rotates, and the second carrier plate 30 drives the lens assembly to move. At the same time, during the rotation process, the second carrier plate 30 drives the second spring sheet (51a, 51b) to bend adaptively, the second spring sheet (51a, 51b) drives the first carrier plate 20 to rotate adaptively, and the first carrier plate 20 drives the first spring sheet (41a, 41b) to bend adaptively. When the memory alloy wire is powered off, the tension F1 and the tension F2 disappear. Under the deformation elastic force of the first spring sheet (41a, 41b) and the second spring sheet (51a, 51b), the first carrier plate 20 and the second carrier plate 30 return to their original positions, and the second carrier plate 30 drives the lens assembly to return to their original positions.

[0091] When F1 and F2 are of different sizes, the second carrier plate 30 also rotates. The specific rotation process can refer to the aforementioned rotation process of "F1 and F2 are of the same size and in opposite directions", which will not be elaborated again here.

[0092] In one application scenario, two memory alloy wires extending along the Y axis are energized, and the two memory alloy wires contract to generate tension, wherein the tension generated by one memory alloy wire is in the F3 direction, and the tension generated by the other memory alloy wire is in the F4 direction.

[0093] Please combine Figure 7 and Fig.10 When F3 and F4 are of the same size and in the same direction, the second carrier plate 30 is translated relative to the first carrier plate 20 along the Y-axis direction, and the second carrier plate 30 drives the lens assembly to move, thereby realizing the anti-shake of the camera module. At the same time, the second carrier plate 30 applies force to the two second spring sheets (51a, 51b), so that the second spring sheets (51a, 51b) are adaptively bent. When the memory alloy wire is powered off, the tension F3 and the tension F4 disappear. Under the deformation elastic force of the second spring sheets (51a, 51b), the second carrier plate 30 returns to its original position, and the second carrier plate 30 drives the lens assembly to return to its original position.

[0094] Please combine Fig.11 When the F3 direction is the same size as the F4 direction and the opposite direction, under the limit of the two second spring pieces (51a, 51b), the second carrier plate 30 rotates relative to the first carrier plate 20, and the second carrier plate 30 drives the lens assembly to rotate. At the same time, the second carrier plate 30 drives the two second spring pieces (51a, 51b) to bend adaptively, the second spring pieces (51a, 51b) drive the first carrier plate 20 to rotate adaptively relative to the substrate 10, and the first carrier plate 20 drives the first spring pieces (41a, 41b) to bend adaptively. When the memory alloy wire is powered off, under the deformation elastic force of the first spring pieces (41a, 41b) and the second spring pieces (51a, 51b), the first carrier plate 20, the second carrier plate 30 and the lens assembly return to their original positions.

[0095] When F3 and F4 are different in size, the second carrier plate also rotates. The specific rotation process can refer to the aforementioned rotation process of "the direction of F3 is the same as that of F4, and the direction is opposite", which will not be elaborated again here.

[0096] In one application scenario, two memory alloy wires extending along the X-axis and two memory alloy wires extending along the Y-axis are energized at the same time; the tension generated by the contraction of each memory alloy wire can drive the second carrier plate 30 to move in the XOY plane, such as linear movement or rotation.

[0097] Please continue reading Figure 7In this embodiment, the two conductive components fixed to the substrate 10 have the same structure, and both can be metal seats 61. The metal seats 61 are fixed to the top surface of the substrate 10. The substrate 10 is a circuit board, and the metal seats 61 are electrically connected to the integrated circuit on the substrate 10. The end of the memory alloy wire 62 is welded to the metal seat 61, so that the end of the memory alloy wire 62 is electrically connected to the metal seat 61. Of course, in other embodiments, the four conductive components can also be other conductive structures, as long as they can be fixed to the end of the memory alloy wire 62 and electrically connected to the end of the memory alloy wire 62.

[0098] In other embodiments, the installation positions of the four conductive components can be adaptively changed according to actual needs.

[0099] When the lens anti-shake device of this embodiment is working, the current flows through the first spring piece 41 of the conductive component of the substrate 10, the conductive component of the first carrier plate 20, the second spring piece 51, the conductive component of the second carrier plate 30 in sequence, and finally flows to the memory alloy wire 62 through the metal clamp 63. The memory alloy wire 62 contracts after being energized, pulling the second carrier plate 30 to move.

[0100] As long as it does not violate the creative idea of ​​the utility model, any combination of various different embodiments of the utility model should be regarded as the content disclosed by the utility model; within the technical concept of the utility model, any simple modification of the technical solution and any combination of different embodiments that do not violate the creative idea of ​​the utility model should be within the protection scope of the utility model.

Claims

1. A lens anti-shake device, characterized in that: It comprises a substrate (10), a first carrier plate (20) and a second carrier plate (30) which are stacked in sequence from bottom to top along the Z axis; The first carrier plate (20) is suspended on the substrate (10) via a first elastic component (40); after the first carrier plate (20) moves relative to the substrate (10) in the X-axis direction, the first carrier plate (20) is forced to return to its original position by the elastic force of the first elastic component (40) after deformation; The second carrier plate (30) is suspended on the first carrier plate (20) through a second elastic member (50); after the second carrier plate (30) moves relative to the first carrier plate (20) in the Y-axis direction, the elastic force of the second elastic member (50) after deformation can force the second carrier plate (30) to return to its original position; The substrate (10) is provided with a memory alloy wire assembly, and the memory alloy wire assembly is connected to the second carrier plate (30). The memory alloy wire assembly drives the second carrier plate (30) to move relative to the substrate (10) within the XOY plane, and the second carrier plate (30) drives the first carrier plate (20) to move through the first elastic component (40).

2. The lens anti-shake device according to claim 1, characterized in that: The first elastic member (40) comprises two first elastic sheets (41a, 41b), the two first elastic sheets (41a, 41b) are respectively located on opposite sides of the first carrier plate (20), and the two ends of the first elastic sheets (41a, 41b) are respectively connected to the substrate and the first carrier plate; the first elastic sheets (41a, 41b) are in the shape of a plate; the plate surface of the first elastic sheets (41a, 41b) is parallel to the Z-axis direction, and the plate surface of the first elastic sheets (41a, 41b) is arranged at an angle to the X-axis direction; the force required for the first elastic sheets (41a, 41b) to be elastically deformed in the X-axis direction is less than the force required for the first elastic sheets (41a, 41b) to be elastically deformed in the Z-axis direction.

3. The lens anti-shake device according to claim 2, characterized in that: The first carrier plate (20) comprises a first side (21) and a second side (22) which are arranged opposite to each other, and the first side (21) and the second side (22) are parallel to the Y-axis direction; the substrate (10) comprises a third side (25) and a fourth side (26) which are arranged opposite to each other, and the third side (25) and the fourth side (26) are parallel to the Y-axis direction; the third side (25) corresponds to the position of the first side (21); and the second side (22) corresponds to the position of the fourth side (26); Two ends of one of the two first elastic sheets (41a, 41b) are respectively fixed to the first side (21) and the third side (25), and two ends of the other one are respectively fixed to the second side (22) and the fourth side (26).

4. The lens anti-shake device according to claim 3, characterized in that: The outer edge of the first side (21) comprises a first connection portion (211) extending outwardly along the X-axis direction; the outer edge of the second side (22) comprises a second connection portion (221) extending outwardly along the X-axis direction; the third side (25) comprises a third connection portion (11) protruding from the top surface of the substrate (10); the fourth side (26) comprises a fourth connection portion (12) protruding from the top surface of the substrate (10); The first connecting portion (211) and the third connecting portion (11) are arranged opposite to each other and spaced apart in the Y-axis direction; the second connecting portion (221) and the fourth connecting portion (12) are arranged opposite to each other and spaced apart in the Y-axis direction; a line connecting the first connecting portion (211) and the second connecting portion (221) intersects a line connecting the third connecting portion (11) and the fourth connecting portion (12); Two ends of one of the two first elastic sheets (41a, 41b) are respectively fixed to the outer wall of the first connecting portion (211) and the third connecting portion (11), and two ends of the other one are respectively fixed to the outer wall of the second connecting portion (221) and the fourth connecting portion (12).

5. The lens anti-shake device according to claim 2, characterized in that: The second elastic member (50) comprises two second elastic sheets (51a, 51b), the two second elastic sheets (51a, 51b) are respectively located on two opposite sides of the second carrier plate (30), and the two ends of the second elastic sheets (51a, 51b) are respectively connected to the first carrier plate (20) and the second carrier plate (30); the second elastic sheets (51a, 51b) are in the shape of a plate; the plate surface of the second elastic sheets (51a, 51b) is parallel to the Z-axis direction, and the plate surface of the second elastic sheets (51a, 51b) is arranged at an angle to the Y-axis direction; the force required for the second elastic sheets (51a, 51b) to undergo elastic deformation in the Y-axis direction is less than the force required for the second elastic sheet (51) to undergo elastic deformation in the Z-axis direction.

6. The lens anti-shake device according to claim 5, characterized in that: The first carrier plate (20) comprises a fifth side (23) and a sixth side (24) which are arranged opposite to each other, and the fifth side (23) and the sixth side (24) are parallel to the X-axis direction; the second carrier plate (30) comprises a seventh side (31) and an eighth side (32) which are arranged opposite to each other, and the seventh side (31) and the eighth side (32) are parallel to the X-axis direction; the fifth side (23) corresponds to the seventh side (31) in position; the sixth side (24) corresponds to the eighth side (32) in position; one of the two second elastic sheets (51a, 51b) has two ends respectively fixed to the fifth side (23) and the seventh side (31), and the other has two ends respectively fixed to the sixth side (24) and the eighth side (32).

7. The lens anti-shake device according to claim 6, characterized in that: The outer edge of the fifth side (23) includes a fifth connection portion (231) extending outwardly along the Y-axis direction; the outer edge of the sixth side (24) includes a sixth connection portion (241) extending outwardly along the Y-axis direction; the outer edge of the seventh side (31) includes a seventh connection portion (311) extending outwardly along the Y-axis direction; the outer edge of the eighth side (32) includes an eighth connection portion (321) extending outwardly along the Y-axis direction; The fifth connecting portion (231) and the seventh connecting portion (311) are arranged opposite to each other and at intervals; the sixth connecting portion (241) and the eighth connecting portion (321) are arranged opposite to each other and at intervals; a line connecting the fifth connecting portion (231) and the sixth connecting portion (241) intersects a line connecting the seventh connecting portion (311) and the eighth connecting portion (321); Two ends of one of the two second elastic sheets (51a, 51b) are respectively fixed to the outer wall of the fifth connecting part (231) and the outer wall of the seventh connecting part (311), and two ends of the other one are respectively fixed to the outer wall of the sixth connecting part (241) and the outer wall of the eighth connecting part (321).

8. The lens anti-shake device according to claim 1, characterized in that: The memory alloy wire assembly comprises four conductive components and four memory alloy wires (62) distributed in a rectangular shape; two conductive components located on one diagonal of the rectangle are fixedly connected to the second carrier plate (30), and two conductive components located on the other diagonal of the rectangle are fixedly connected to the base plate (10); adjacent conductive components are electrically connected via a memory alloy wire (62), and the memory alloy wire (62) is located at intervals on the outer edge of the second carrier plate (30); after the memory alloy wire (62) is energized, the memory alloy wire (62) applies a tensile force to the corresponding conductive component.

9. The lens anti-shake device according to claim 1, characterized in that: The first elastic member (40) comprises two first conductive spring sheets (41a, 41b), the two first spring sheets (41a, 41b) connecting the substrate (10) and the first carrier plate (20), and the conductive member on the substrate (10) and the conductive member on the first carrier plate (20) are electrically connected via the first spring sheets (41a, 41b); The second elastic component (50) comprises two conductive second spring sheets (51a, 51b), the two second spring sheets (51a, 51b) connecting the first carrier plate (20) and the second carrier plate (30), and the conductive component on the first carrier plate (20) and the conductive component on the second carrier plate (30) are electrically connected via the second spring sheets (51a, 51b).

10. A handheld photographing device, characterized in that: The invention comprises a camera module, wherein the camera module comprises a lens assembly and a lens anti-shake device as described in any one of claims 1 to 9, wherein the first carrier plate (20) and the second carrier plate (30) are both provided with through holes; the lens assembly is arranged on the second carrier plate (30); and the lens assembly cooperates with the through holes.

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