Shape memory alloy actuating assembly and optical anti-vibration module

Abstract

The utility model discloses a shape memory alloy actuating assembly which is used for counteracting displacement of an optical module and comprises an installation frame and an assembly plate. At least two extension parts are distributed on the mounting frame along the circumferential side edge, all the extension parts are opposite in pairs, and the mounting frame is used for being arranged on an optical module in a sleeving manner; an assembly plate is arranged on the face, facing the other opposite extension part, of each extension part, a shape memory alloy part and a first abutting assembly are arranged on each assembly plate, the shape memory alloy parts are connected with the movable ends of the first abutting assemblies, and the movable ends of the first abutting assemblies are arranged facing the other opposite extension part. According to the utility model, the shape memory alloy part is arranged on the assembly plate serving as the stator end, so that the required assembly precision is reduced, the space occupation volume is reduced, meanwhile, the deformation design of the shape memory alloy part is more flexible, and the anti-shake displacement is increased by matching with the first propping assembly serving as the rotor end.

Description

Technical Field

[0001] This utility model relates to the field of optical image stabilization technology, and in particular to a shape memory alloy actuation component and an optical image stabilization module. Background Technology

[0002] Lens OIS (Optical Image Stabilization) is very common in current mobile phones.

[0003] Most mobile phones employ lens-based image stabilization (OIS) solutions. A typical magnetoelectric lens stabilization solution can be found in patent application CN104238238A, titled "Camera Lens Assembly." However, magnetoelectric OIS devices are complex and bulky, making them difficult to adapt to smaller, thinner mobile devices.

[0004] To address this, existing solutions propose using SMA (Shape Memory Alloy) lens stabilization motors. These use shape memory metal to replace the linear motors in magnetoelectric lens stabilization solutions as the drive motor for OIS (Optical Image Stabilization). For example, patent application CN201380027443, titled "Shape Memory Alloy Actuation Component," illustrates this. The biggest advantage of SMA OIS is its smaller size, producing more stable stabilization with a smaller structure, thus allowing for better utilization of the camera body's internal space. However, because the SMA directly pulls the lens with shape memory metal wires, its travel is relatively limited. Furthermore, with one end of the SMA fixed to the moving part and the other to the stationary part, the electrical connection between the moving and stationary parts is complex. The SMA requires high assembly precision, making manufacturing difficult and costly. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a shape memory alloy actuation component and an optical image stabilization module, which reduces the volume of the actuation part while increasing the image stabilization displacement.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A shape memory alloy actuation component for counteracting displacement of an optical module, including a mounting bracket and an assembly plate;

[0008] The mounting bracket is provided with at least two extensions distributed along the circumferential side, and all the extensions are opposite to each other. The mounting bracket is used to fit onto the optical module.

[0009] Each of the extensions has an assembly plate on one side facing the opposite extension. The assembly plate has a shape memory alloy component and a first abutment assembly. The shape memory alloy component is connected to the movable end of the first abutment assembly, and the movable end of the first abutment assembly is positioned facing the opposite extension.

[0010] Furthermore, the first top support assembly includes a limiting seat and a top support component;

[0011] The limiting seat is disposed on the assembly plate, the top abutment is movably disposed on the limiting seat, the shape memory alloy part is in contact with the top abutment, and the shape memory alloy part is able to move against the top abutment toward the opposite other extension.

[0012] Furthermore, there are at least two shape memory alloy parts and the first top abutment assembly on each of the assembly plates, and the shape memory alloy parts on the same assembly plate correspond one-to-one with the first top abutment assembly.

[0013] Furthermore, the first abutting component on one of the extensions is disposed opposite to the first abutting component on the opposite other extension.

[0014] Furthermore, it also includes a second top-mounted component;

[0015] Each of the extensions is provided with a second abutment component, and the second abutment component and the first abutment component on the same extension correspond one-to-one and are located on opposite sides of the extension.

[0016] The orientation of the movable end of the second abutment component is opposite to the orientation of the movable end of the corresponding first abutment component.

[0017] Furthermore, it also includes integrated wire harnesses and soldering plates;

[0018] The welding plate is disposed on the assembly plate, and the welding plate is electrically connected to the integrated wire harness. The integrated wire harness is electrically connected to each of the shape memory alloy parts.

[0019] Furthermore, the top support is a ball or roller, and the limiting seat is provided with a limiting hole for the top support to roll.

[0020] Furthermore, the assembly plate is provided with an insulating protective coating.

[0021] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is as follows:

[0022] An optical image stabilization module includes an optical module, a base, and the aforementioned shape memory alloy actuation component;

[0023] The optical module is located on the base, the mounting bracket is sleeved on the optical module, and all the extensions are arranged in pairs opposite each other and around the circumferential side of the optical module perpendicular to the optical axis.

[0024] The mounting plate on each of the extensions is respectively disposed opposite to the circumferential side of the optical module perpendicular to the optical axis, and the movable end of the first abutment component is disposed directly opposite the circumferential side of the optical module perpendicular to the optical axis.

[0025] Furthermore, the shape memory alloy actuation assembly includes a mounting bracket and a second abutment assembly;

[0026] The base is provided with a limiting groove, and the optical module is located in the limiting groove;

[0027] The second abutment component is provided on the side of the extension away from the optical module, and the movable end of the second abutment component faces the groove wall of the limiting groove.

[0028] The beneficial effects of this utility model are as follows: It provides a shape memory alloy actuation component and an optical image stabilization module. The shape memory alloy component and the first top abutment component are arranged on the side of the optical module through a mounting bracket. The shape memory alloy component is set on the assembly plate, which serves as the stationary end, reducing the required assembly precision and space occupation. At the same time, it makes the deformation design of the shape memory alloy component more flexible. Together with the first top abutment component, which serves as the moving end, it increases the anti-shake displacement. During anti-shake, the deformation generated by the shape memory alloy component serves as the driving force for the first top abutment component to move. The first top abutment component pushes the optical module to counteract the displacement caused by vibration. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the assembly plate of a shape memory alloy actuation component according to the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a shape memory alloy actuation component according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of an optical image stabilization module according to an embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of another shape memory alloy actuation component according to an embodiment of the present utility model;

[0033] Figure 5 A schematic diagram of another optical image stabilization module according to an embodiment of this utility model;

[0034] Figure 6This is a schematic diagram illustrating the connection between the integrated wire harness and multiple assembly plates according to an embodiment of the present utility model;

[0035] Figure 7 This is a schematic diagram showing the pushing direction of the first and second support components of an optical image stabilization module according to an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram showing the pushing direction of the first top-mounted component of another optical image stabilization module according to an embodiment of the present invention.

[0037] Label Explanation:

[0038] 1. Optical module; 2. Shape memory alloy component; 3. First top support assembly; 4. Assembly plate; 5. Base; 6. Mounting bracket; 7. Second top support assembly; 8. Integrated wiring harness; 9. Welding plate; 10. Limiting groove;

[0039] 31. Limiting seat; 32. Top support;

[0040] 61. Extension; 62. Mounting hole. Detailed Implementation

[0041] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0042] Please refer to Figures 1 to 8 A shape memory alloy actuation component for counteracting displacement of optical module 1, including mounting bracket 6 and assembly plate 4;

[0043] The mounting bracket 6 is provided with at least two extensions distributed along its circumferential side, and all the extensions are opposite to each other. The mounting bracket 6 is used to be fitted onto the optical module 1.

[0044] Each of the extensions has an assembly plate 4 on one side facing the opposite extension. The assembly plate 4 has a shape memory alloy part 2 and a first abutment assembly 3. The shape memory alloy part 2 is connected to the movable end of the first abutment assembly 3, and the movable end of the first abutment assembly 3 is positioned facing the opposite extension.

[0045] As can be seen from the above description, the beneficial effects of this utility model are as follows: the shape memory alloy part 2 and the first top abutment component 3 are arranged on the side of the optical module 1 by the mounting bracket 6, and the shape memory alloy part 2 is set on the assembly plate 4, which is the stationary end, reducing the required assembly precision and reducing the space occupied. At the same time, it makes the deformation design of the shape memory alloy part 2 more flexible. Together with the first top abutment component 3, which is the moving end, it increases the anti-shake displacement. During anti-shake, the deformation generated by the shape memory alloy part 2 serves as the power to push the first top abutment component 3 to move. The first top abutment component 3 pushes the optical module 1 to counteract the displacement caused by the shaking.

[0046] Furthermore, the first top support component 3 includes a limiting seat 31 and a top support member 32;

[0047] The limiting seat 31 is disposed on the assembly plate 4, the top abutment 32 is movably disposed on the limiting seat 31, the shape memory alloy part 2 is in contact with the top abutment 32, and the shape memory alloy part 2 can abut against the top abutment 32 and move toward the opposite other extension 61.

[0048] As can be seen from the above description, on the assembly plate 4, the limiting seat 31 provides a movable support base for the top support 32, ensuring that the top support 32 moves stably toward the direction of the optical module 1; on this basis, the shape memory alloy part 2 only needs to be designed to deform in the direction of pushing the top support 32 forward.

[0049] Furthermore, there are at least two shape memory alloy parts 2 and the first top support assembly 3 on each of the assembly plates 4, and the shape memory alloy parts 2 and the first top support assembly 3 on the same assembly plate 4 correspond one-to-one.

[0050] As can be seen from the above description, by setting multiple shape memory alloy parts 2 and the first top support component 3, in addition to increasing the actuation force, the optical module 1 can be controlled to rotate by relying on the first top support components 3 at different positions to meet the actual adjustment requirements.

[0051] Furthermore, the first abutting component 3 on one of the extensions 61 is disposed opposite to the first abutting component 3 on the opposite other extension 61.

[0052] As can be seen from the above description, when there are multiple first abutting components 3 on the same assembly plate 4, the first abutting components 3 of two opposite assembly plates 4 correspond to each other, which can ensure the consistency of force when applied in the opposite direction, making the movement of the optical module 1 more stable.

[0053] Furthermore, it also includes a second top-mounted component 7;

[0054] Each of the extensions 61 is provided with a second abutment component 7, and the second abutment component 7 and the first abutment component 3 on the same extension 61 correspond one-to-one and are located on opposite sides of the extension 61 respectively.

[0055] The orientation of the movable end of the second abutment component 7 is opposite to the orientation of the movable end of the corresponding first abutment component 3.

[0056] As can be seen from the above description, the shape memory alloy part 2 that drives the first abutment component 3 will also generate a force in the opposite direction to the force applied to the first abutment component 3 after deformation and contraction. This force is applied to the mounting plate 4, causing the mounting bracket 6 to shift relative to the optical module 1. Therefore, the second abutment component 7 is used to abut against the base 5 on which the optical module 1 is mounted, so as to counteract the force caused by the shape memory alloy part 2 to shift the mounting bracket 6, thereby enabling the optical module 1 to move while the mounting bracket 6 is stable.

[0057] Furthermore, it also includes an integrated wire harness 8 and a welding plate 9;

[0058] The welding plate 9 is disposed on the assembly plate 4, and the welding plate 9 is electrically connected to the integrated wire harness 8. The integrated wire harness 8 is electrically connected to each of the shape memory alloy parts 2.

[0059] As can be seen from the above description, the integrated wiring harness 8 is set to connect each shape memory alloy part 2 respectively, and the welding plate 9 is provided to improve the integration of power supply control for different shape memory alloy parts 2 and reduce the difficulty of device installation.

[0060] Furthermore, the top support 32 is a ball or roller, and the limiting seat 31 is provided with a limiting hole for the top support 32 to roll.

[0061] As can be seen from the above description, setting the top support 32 as a ball or roller can effectively reduce friction; when the optical module 1 moves in one direction, the top support 32 located on both sides can roll into contact with it, providing a limiting and guiding function.

[0062] Furthermore, the assembly plate 4 is provided with an insulating protective coating.

[0063] As can be seen from the above description, the assembly plate 4 is provided with an insulating protective coating to form an insulating protection and improve the stability of the component.

[0064] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is as follows:

[0065] An optical image stabilization module includes an optical module 1, a base 5, and the aforementioned shape memory alloy actuation component;

[0066] The optical module 1 is located on the base 5, the mounting bracket 6 is sleeved on the optical module 1, and all the extensions 61 are arranged in pairs opposite each other and around the circumferential side of the optical module 1 perpendicular to the optical axis.

[0067] The mounting plate 4 on each of the extensions 61 is respectively disposed opposite to the circumferential side of the optical module 1 perpendicular to the optical axis, and the movable end of the first abutment component 3 is disposed directly opposite the circumferential side of the optical module 1 perpendicular to the optical axis.

[0068] As can be seen from the above description, the beneficial effects of this utility model are as follows: the shape memory alloy part 2 and the first top abutment component 3 are arranged on the side of the optical module 1 by the mounting bracket 6, and the shape memory alloy part 2 is set on the assembly plate 4, which is the stationary end, reducing the required assembly precision and reducing the space occupied. At the same time, it makes the deformation design of the shape memory alloy part 2 more flexible. Together with the first top abutment component 3, which is the moving end, it increases the anti-shake displacement. During anti-shake, the deformation generated by the shape memory alloy part 2 serves as the power to push the first top abutment component 3 to move. The first top abutment component 3 pushes the optical module 1 to counteract the displacement caused by the shaking.

[0069] Furthermore, the shape memory alloy actuation assembly includes a mounting bracket 6 and a second abutment assembly 7;

[0070] The base 5 is provided with a limiting groove 10, and the optical module 1 is located in the limiting groove 10;

[0071] The second abutment component 7 is provided on the side of the extension 61 away from the optical module 1, and the movable end of the second abutment component 7 faces the groove wall of the limiting groove 10.

[0072] As can be seen from the above description, the shape memory alloy part 2 that drives the first abutment component 3 will also generate a force in the opposite direction to the force applied to the first abutment component 3 after deformation and contraction. This force is applied to the mounting plate 4, causing the mounting bracket 6 to shift relative to the optical module 1. Therefore, the second abutment component 7 is used to abut against the base 5 on which the optical module 1 is mounted, so as to counteract the force caused by the shape memory alloy part 2 to shift the mounting bracket 6, thereby enabling the optical module 1 to move while the mounting bracket 6 is stable.

[0073] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 as well as Figure 7 Embodiment 1 of this utility model is as follows:

[0074] A shape memory alloy actuation component for counteracting the displacement of an optical module 1 includes a mounting bracket 6 and an assembly plate 4. The mounting bracket 6 has at least two extensions distributed along its circumferential side, with all extensions facing each other in pairs. The mounting bracket 6 is used to fit onto the optical module 1. Each extension has an assembly plate 4 on its side facing the opposite extension. The assembly plate 4 has a shape memory alloy part 2 and a first abutment component 3. The shape memory alloy part 2 is connected to the movable end of the first abutment component 3, and the movable end of the first abutment component 3 is positioned facing the opposite extension.

[0075] In this embodiment, as Figure 1 As shown, the assembly plate 4 serves as the stationary end, providing a mounting base for the shape memory alloy part 2 and the first abutment assembly 3; the movable end of the first abutment assembly 3 serves as the moving end, used to abut against the optical module 1; since it is set on the assembly plate 4, the shape memory alloy part 2 can be flexibly designed with its specific shape structure to produce the corresponding deformation process. Specifically, the shape memory alloy part 2 can be designed as a straight wire or a spring, as shown in the figure. By bending the shape memory alloy part 2, the deformation can be effectively increased, that is, the anti-shake displacement can be increased.

[0076] It should be noted that the focus of this application is to protect the structure composed of the assembly plate 4, the shape memory alloy part 2, etc. As for how to determine the offset of the optical module 1 and control the deformation of the shape memory alloy part 2, it can be achieved by using some existing software algorithms, and is not the content to be protected by this application.

[0077] like Figure 2 and Figure 3 As shown, the mounting bracket 6 has four extensions 61 distributed along its circumferential side, and each extension 61 is provided with a mounting plate 4. The mounting plates 4 located on different extensions 61 are opposite each other; the first abutting component 3 on one mounting plate 4 and the first abutting component 3 on the opposite mounting plate 4 are symmetrically arranged to ensure the consistency of the torque of the first abutting component 3 in the opposite direction.

[0078] On the mounting bracket 6, the second top abutment component 7 and the first top abutment component 3 correspond one-to-one and are located on opposite sides of the extension 61; the orientation direction of the movable end of the second top abutment component 7 is opposite to the orientation direction of the movable end of the corresponding first top abutment component 3. As shown in the figure, the mounting bracket 6 is provided with a mounting hole 62 for the lens of the optical module 1 to pass through, and the diameter of the mounting hole 62 is larger than the diameter of the entire lens. The second top abutment component 7 is preferably designed with the same structure as the first top abutment component 3, and its movement is also driven by shape memory alloy parts 2 in a one-to-one correspondence. Four mounting plates 4 are arranged around the circumferential side of the optical module 1 perpendicular to the optical axis, and at least one movable end of each first top abutment component 3 is oriented towards the optical module 1. All the assembly plates 4 are paired up and are responsible for pushing the shape memory alloy part 2 and the first top abutment component 3 optical module 1 in two horizontal straight lines respectively. When pushing the optical module 1, the first top abutment component 3 on the opposite assembly plate 4 cooperates to complete the task. At the same time, the movable ends of the other two first top abutment components 3 lightly touch the optical module 1 to provide a limiting and guiding function.

[0079] Combination Figure 2 , Figure 3 as well as Figure 7 As shown, when the first abutting component 3 on an extension 61 pushes the optical module 1, the shape memory alloy component 2 generates a force opposite to the pushing direction when it deforms, causing the mounting bracket 6 to move relative to the entire optical module 1, or even making it impossible to push the optical module 1. Therefore, the opposite second abutting component 7 and the first abutting component 3 act simultaneously. The second abutting component 7 abuts against the base 5 in the opposite direction, that is, it helps to hold the mounting bracket 6, and counteracts the reaction force generated by the shape memory alloy component 2 in the deformation relative to the pushing direction. The two work together to complete the process of pushing the optical module 1.

[0080] Reference Figure 2 and Figure 7 As shown, each assembly plate 4 has two opposing first abutting components 3 and second abutting components 7, and their respective pushing directions are as follows: Figure 7 As indicated by the arrow; each first top-mounting component 3 and second top-mounting component 7 is independently controlled; when the optical module 1, composed of the camera lens and image sensor, needs to be translated in one direction, the two first top-mounting components 3 and second top-mounting components 7 on the corresponding side will act together; when the optical module 1 needs to be rotated, one first top-mounting component 3 on the assembly plate 4 will act independently, and will work in conjunction with the previous first top-mounting component 3 on other assembly plates 4 to complete the rotation in sequence.

[0081] Not only that, such as Figure 5As shown, one of the assembly plates 4 is equipped with a welding plate 9, and an integrated wiring harness 8 is electrically connected to each shape memory alloy component 2. The welding plate 9 provides welding points for the power supply terminal, and together with the integrated wiring harness 8, supplies power to the shape memory alloy component 2 on each assembly plate 4. To prevent the energized shape memory alloy component 2 from short-circuiting with the optical module 1, an insulating protective coating can also be provided on the assembly plate 4.

[0082] Please refer to Figure 1 Embodiment two of this utility model is as follows:

[0083] A shape memory alloy actuation component, based on the above embodiment 1, includes a first abutting component 3 comprising a limiting seat 31 and a abutting member 32; the limiting seat 31 is disposed on the assembly plate 4, the abutting member 32 is movably disposed on the limiting seat 31, the shape memory alloy member 2 is in contact with the abutting member 32, and the shape memory alloy member 2 is able to abut against the abutting member 32 and move toward the opposite extension 61.

[0084] In this embodiment, the top support 32 is a ball or roller, and the limiting seat 31 is provided with a limiting hole for the top support 32 to roll. When using ball or roller, a lubricating substance can be applied to its surface to further reduce friction and improve the actuation displacement accuracy.

[0085] Please refer to Figure 3 , Figure 4 , Figure 5 as well as Figure 8 Embodiment three of this utility model is as follows:

[0086] An optical image stabilization module includes an optical module 1, a base 5, and a shape memory alloy actuation component as described above. The optical module 1 is located on the base 5, and a mounting bracket 6 is sleeved on the optical module 1. All extensions 61 are arranged opposite each other and surround the circumferential side of the optical module 1 perpendicular to the optical axis. The mounting plate 4 on each extension 61 is respectively arranged opposite to the circumferential side of the optical module 1 perpendicular to the optical axis. The movable end of the first abutment component 3 is arranged directly opposite the circumferential side of the optical module 1 perpendicular to the optical axis.

[0087] In some other equivalent implementations, such as Figure 8 As shown, the mounting plate 4 is directly mounted on the circumferential side of the optical module 1 perpendicular to the optical axis, while the first abutting component 3 on the mounting plate 4 is positioned facing the base 5, acting in the opposite direction to push the optical module 1 by abutting against the base 5. The pushing direction of the first abutting component 3 on the mounting plate 4 is as follows: Figure 8 As shown by the arrow; when using Figure 8 In the arrangement shown, the optical module 1 may only include the camera lens. The camera lens can be translated or rotated by independently controlling the first top-mounting component 4 on each assembly plate 4 to achieve image stabilization.

[0088] In this embodiment, the shape memory alloy actuation component includes a mounting bracket 6 and a second abutment component 7; a limiting groove 10 is provided on the base 5, and the optical module 1 is located in the limiting groove 10; the mounting bracket 6 is sleeved on the optical module 1, and the mounting bracket 6 is provided with at least two extensions 61 distributed along the circumferential side, all extensions 61 are opposite to each other and arranged around the circumferential side of the optical module 1 perpendicular to the optical axis; a mounting plate 4 is provided on the side of the extension 61 facing the optical module 1, and a second abutment component 7 is provided on the side of the extension 61 away from the optical module 1, and the movable end of the second abutment component 7 faces the groove wall of the limiting groove 10.

[0089] In some other equivalent implementations, such as Figure 5 As shown, the size of the mounting bracket 6 can also be designed to be larger than that of the base 5, and then the first abutment component 3 of the shape memory alloy actuation component is arranged around the circumferential side of the entire base 5 to push the entire base 5, including the optical module 1.

[0090] In summary, the shape memory alloy actuation component and optical image stabilization module provided by this utility model place the shape memory alloy component on the assembly plate serving as the stationary end, reducing the required assembly precision and space occupation, while making the deformation design of the shape memory alloy component more flexible. Combined with the first abutment component serving as the moving end, it increases the anti-shake displacement. The assembly plates are arranged in pairs opposite each other in different directions relative to the optical module, working together to control the movement of the optical module. During image stabilization, the power supply provides power to the shape memory alloy component, and the deformation generated by the shape memory alloy component serves as the driving force for the first abutment component to move. The first abutment component pushes the optical module to counteract the displacement caused by vibration. Offline installation is achieved using mounting brackets and integrated wiring harnesses, making it convenient to use.

[0091] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A shape memory alloy actuation component for counteracting displacement of an optical module, characterized in that, Including mounting brackets and assembly plates; The mounting bracket is provided with at least two extensions distributed along the circumferential side, and all the extensions are opposite to each other. The mounting bracket is used to fit onto the optical module. Each of the extensions has an assembly plate on one side facing the opposite extension. The assembly plate has a shape memory alloy component and a first abutment assembly. The shape memory alloy component is connected to the movable end of the first abutment assembly, and the movable end of the first abutment assembly is positioned facing the opposite extension.

2. A shape memory alloy actuation assembly according to claim 1, wherein, The first support assembly includes a limiting seat and a support member; The limiting seat is disposed on the assembly plate, the top abutment is movably disposed on the limiting seat, the shape memory alloy part is in contact with the top abutment, and the shape memory alloy part is able to move against the top abutment toward the opposite other extension.

3. A shape memory alloy actuation assembly according to claim 1, wherein, There are at least two shape memory alloy parts and the first top abutment assembly on each of the assembly plates, and the shape memory alloy parts on the same assembly plate correspond one-to-one with the first top abutment assembly.

4. A shape memory alloy actuation assembly according to claim 3, wherein, The first abutting component on one of the extensions is disposed opposite to the first abutting component on the opposite other extension.

5. A shape memory alloy actuation assembly according to claim 1, wherein, It also includes a second top-mounted component; Each of the extensions is provided with a second abutment component, and the second abutment component and the first abutment component on the same extension correspond one-to-one and are located on opposite sides of the extension. The orientation of the movable end of the second abutment component is opposite to the orientation of the movable end of the corresponding first abutment component.

6. A shape memory alloy actuation assembly according to claim 1, wherein, It also includes integrated wire harnesses and soldering plates; The welding plate is disposed on the assembly plate, and the welding plate is electrically connected to the integrated wire harness. The integrated wire harness is electrically connected to each of the shape memory alloy parts.

7. A shape memory alloy actuation assembly according to claim 2, wherein, The top support is a ball or roller, and the limiting seat is provided with a limiting hole for the top support to roll.

8. A shape memory alloy actuation assembly according to claim 1, wherein, The assembly plate is provided with an insulating protective coating.

9. An optical image stabilization module, characterized by comprising: Includes an optical module, a base, and a shape memory alloy actuation component as described in any one of claims 1 to 8; The optical module is located on the base, the mounting bracket is sleeved on the optical module, and all the extensions are arranged in pairs opposite each other and around the circumferential side of the optical module perpendicular to the optical axis. The mounting plate on each of the extensions is respectively disposed opposite to the circumferential side of the optical module perpendicular to the optical axis, and the movable end of the first abutment component is disposed directly opposite the circumferential side of the optical module perpendicular to the optical axis.

10. The optical image stabilization module of claim 9, wherein the first and second elastic members are formed of a material having a high elastic modulus. The shape memory alloy actuation assembly includes a mounting bracket and a second top-mounting assembly; The base is provided with a limiting groove, and the optical module is located in the limiting groove; The second abutment component is provided on the side of the extension away from the optical module, and the movable end of the second abutment component faces the groove wall of the limiting groove.

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