Optical Image Stabilization Motor and Electronic Device

Abstract

The present application discloses an optical image stabilization motor and an electronic device, belonging to the technical field of optical image stabilization. The optical image stabilization motor of the present application includes: a stationary member; a movable member, which is movably arranged along one surface of the stationary member; an SMA wire, the SMA wire is in a V shape, and both ends of the SMA wire are fixedly connected to the stationary member; the position of the V-shaped vertex on the SMA wire is movably connected to the movable member, so that the position of the V-shaped vertex can move on the SMA wire, or so that the movable member can slide relative to the V-shaped vertex; the SMA wire can be energized and contracted to drive the movable member to move towards the side of its V-shaped opening. In the optical image stabilization motor of the present application, the SMA wire is arranged in this way to play a role in amplifying the stroke, which is beneficial to reducing the volume of the optical image stabilization motor.

Description

Technical Field

[0001] This application relates to the field of optical image stabilization technology, and particularly to an optical image stabilization motor and an electronic device. Background Art

[0002] SMA (shape memory alloy) is a material made of two or more metal materials that has a shape memory effect (SME) through thermoelasticity and martensitic phase transformation and its reverse transformation. The SMA can be deformed at a lower temperature and can return to its shape before deformation after being heated by electricity. Therefore, it can be electrically controlled to contract.

[0003] Although the SMA wire has a large driving force and is an ideal component for realizing anti-shake movement, it is limited by the extremely limited telescopic length of the SMA wire, resulting in an extremely limited anti-shake stroke. In the related art, in order to realize a large-stroke anti-shake compensation for the driven member in a plane perpendicular to the optical axis, a voice coil motor is often used to achieve anti-shake compensation. However, due to structural limitations, the voice coil motor cannot be made thin and light, resulting in a large thickness and volume of the device, which is not conducive to the miniaturization of the device. Summary of the Invention

[0004] This application aims to solve one of the technical problems existing in the prior art. For this purpose, this application proposes an optical image stabilization motor and an electronic device. The optical image stabilization motor of this application has a simple structure, a small volume, and a large driving stroke.

[0005] The optical image stabilization motor according to the first aspect embodiment of this application includes:

[0006] A stationary member;

[0007] A movable member, the movable member is movably arranged along one side surface of the stationary member;

[0008] An SMA wire, the SMA wire is in a V shape, and both ends of the SMA wire are fixedly connected to the stationary member; the position of the V-shaped vertex on the SMA wire is movably connected to the movable member, so that the position of the V-shaped vertex can move on the SMA wire, or so that the movable member can slide relative to the V-shaped vertex; the SMA wire can be electrically contracted to drive the movable member to move toward the V-shaped opening side thereof.

[0009] The optical image stabilization motor according to the embodiment of this application has at least the following beneficial effects:

[0010] The SMA wire is bent in a V shape. When the SMA wire is energized and contracts to drive the moving part to move, the V-shaped angle on the SMA wire becomes larger. The distance between the V-shaped vertices of the SMA wire before and after energization is the translation distance of the moving part relative to the stationary part. The distance between the V-shaped vertices of the SMA wire before and after energization is much larger than the contraction length of the SMA wire. Moreover, when the V-shaped angle on the SMA wire is larger, for the same amount of contraction of the SMA wire, the distance that the V-shaped vertex moves is larger, thus playing a role in amplifying the stroke. Therefore, when the movement stroke is fixed, the length of the SMA wire can be reduced, thereby reducing the volume of the optical image stabilization motor and facilitating the miniaturization of the device.

[0011] According to some embodiments of the present application, at least two SMA wires are provided, and are respectively used to drive the moving part to move in two mutually perpendicular directions.

[0012] According to some embodiments of the present application, a sliding groove is provided on the moving part. The sliding groove is provided in the middle of the side of the moving part. The middle part of the SMA wire passes through the sliding groove and forms the V-shaped vertex.

[0013] According to some embodiments of the present application, a winding part is provided on the moving part, and the sliding groove is formed in the winding part.

[0014] According to some embodiments of the present application, a push block is further included. The push block is provided with a receiving groove. The middle part of the SMA wire passes through the receiving groove, and the push block abuts against the moving part.

[0015] According to some embodiments of the present application, the push block is arranged between the stationary part and the moving part. A blocking block that bends towards the stationary part is provided in the middle of the side wall of the moving part, and the push block abuts against the blocking block.

[0016] According to some embodiments of the present application, a first elastic arm is further included. The first elastic arm connects the push block and the stationary part.

[0017] According to some embodiments of the present application, a second elastic arm is arranged between the stationary part and the moving part. A plurality of second elastic arms are provided and are evenly arranged around the moving part. The second elastic arm connects the moving part and the stationary part.

[0018] According to some embodiments of the present application, a magnet is arranged between the stationary part and the moving part. The magnet is fixedly arranged on the stationary part and / or the moving part. The magnet is used to limit the movement of the moving part in the direction away from the stationary part by magnetic force.

[0019] An electronic device according to an embodiment of the second aspect of the present application includes the above-mentioned optical image stabilization motor.

[0020] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 Is a perspective view of an optical image stabilization motor according to an embodiment of the first aspect of the present application.

[0023] Figure 2 Is an exploded view of an optical image stabilization motor according to an embodiment of the first aspect of the present application.

[0024] Figure 3 Is Figure 1 An enlarged view of part A in

[0025] Figure 4 Is a perspective view of an optical image stabilization motor according to another embodiment of the first aspect of the present application.

[0026] Figure 5 Is an exploded view of an optical image stabilization motor according to another embodiment of the first aspect of the present application.

[0027] Figure 6 Is a perspective view of an optical image stabilization motor according to yet another embodiment of the first aspect of the present application.

[0028] Figure 7 Is a partial exploded view of an optical image stabilization motor according to yet another embodiment of the first aspect of the present application.

[0029] Figure 8 Is an exploded view of an optical image stabilization motor according to yet another embodiment of the first aspect of the present application.

[0030] Reference Numerals in the Drawings:

[0031] Stationary member 110; Fixed end 120;

[0032] Movable member 200; Coiled portion 210; Slide groove 211; Stopper 220; Second elastic arm 230;

[0033] Sliding bearing 300;

[0034] SMA wire 400;

[0035] First SMA wire 410; Second SMA wire 420; Third SMA wire 430; Fourth SMA wire 440;

[0036] Pusher block 500;

[0037] The first pushing block 510; the second pushing block 520; the third pushing block 530; the fourth pushing block 540; the accommodating groove 550;

[0038] The first elastic arm 600;

[0039] The magnet 700. Specific embodiments

[0040] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. If the first and second are described, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0042] In the description of the present application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0043] The following is based on Figures 1 to 8 Describe the optical image stabilization motor of the first aspect embodiment of the present application.

[0044] Refer to Figure 1 、 Figure 4 And Figure 6 The optical image stabilization motor of the first aspect embodiment of the present application includes:

[0045] The stationary member 110;

[0046] The movable member 200, and the movable member 200 is movably arranged along one side surface of the stationary member 110;

[0047] The SMA wire 400 is in a V shape. Both ends of the SMA wire 400 are fixedly connected to the stationary member 110 respectively; the position of the V-shaped vertex on the SMA wire 400 is movably connected to the movable member 200, so that the position of the V-shaped vertex can move on the SMA wire 400, or so that the movable member 200 can slide relative to the V-shaped vertex; the SMA wire 400 can be energized and contracted to drive the movable member 200 to move towards the V-shaped opening side thereof.

[0048] Specifically, the SMA wire 400 is bent in a V shape. When the SMA wire 400 is energized and contracted to pull the movable member 200 to move, the V-shaped angle on the SMA wire 400 becomes larger. The distance between the V-shaped vertices before and after the SMA wire 400 is energized is the translation distance of the movable member 200 relative to the stationary member 110. The distance between the V-shaped angle vertices before and after the SMA wire 400 is energized is much larger than the contraction length of the SMA wire 400. Moreover, when the V-shaped angle on the SMA wire 400 is larger, when the SMA wire 400 contracts by the same amount, the distance that the V-shaped vertex moves is larger, thus playing a role in amplifying the stroke. Therefore, the length of the SMA wire 400 can be reduced when the movement stroke is certain, thereby reducing the volume of the optical image stabilization motor, which is beneficial to the miniaturization of the device.

[0049] In some embodiments of the present application, at least two SMA wires 400 are provided, and are respectively used to drive the movable member 200 to move in two mutually perpendicular directions.

[0050] For example, in some cases, the movable plate 200 is rectangular, and the SMA wires 400 are arranged along two adjacent sides of the movable plate 200. One of the SMA wires 400 is energized to contract it, thereby pulling the movable plate 200 to move in one direction.

[0051] It can be understood that, in other cases, four SMA wires 400 can also be provided. Specifically, refer to Figure 1 、 Figure 4 and Figure 6 , the stationary member 110 is rectangular, and fixed ends 120 are arranged along the four sides of the stationary member 110. Specifically, two fixed ends 120 are arranged at both ends of each side of the stationary member 110. The two fixed ends 120 on each side are a group. Four SMA wires 400 are provided, namely a first SMA wire 410, a second SMA wire 420, a third SMA wire 430 and a fourth SMA wire 440. Each SMA wire 400 is electrically connected to the two fixed ends 120 in the same group respectively. The movable member 200 is arranged on one side surface of the stationary member 110, and each SMA wire 400 is movably connected to each side edge of the movable member 200 respectively.

[0052] Specifically, taking the movement of the movable member 200 in the X-axis direction as an example: When the first SMA wire 410 is energized to contract and pull the movable member 200 to move in the X-axis direction, at this time, the second SMA wire 420, the third SMA wire 430, and the fourth SMA wire 440 are movably connected to the movable member 200. Therefore, during the translation of the movable member 200, it can move relative to the second SMA wire 420 and the third SMA wire 430, that is, the contact points of the second SMA wire 420 and the third SMA wire 430 with the movable member 200 change as the movable member 200 moves. Compared with the way that the connection points of the SMA wires 400 and the movable member 200 are fixed, it can prevent the second SMA wire 420 and the third SMA wire 430 from not being able to be stretched any further after being pulled to a certain extent during the movement of the movable member 200 in the X-axis direction, thereby restricting the movement of the movable member 200 and affecting the optical image stabilization effect. With such a setting, the movement stroke of the movable member 200 can be increased, thereby improving the anti-shake performance of the optical image stabilization motor.

[0053] Reference Figure 1 、 Figure 3 and Figure 4 , in some embodiments of the present application, a chute 211 is provided on the movable member 200. The chute 211 is provided in the middle of the side of the movable member 200, and the middle part of the SMA wire 400 passes through the chute 211 and forms a V-shaped vertex.

[0054] It can be understood that the SMA wire 400 and the movable member 200 can adopt the following connection method, that is: the SMA wire 400 passes through the chute 211 of the movable member 200 and is slidably connected to the movable member 200. The chute 211 is provided in the middle of the side of the movable member 200. When the SMA wire 400 pulls the movable member 200 to move in one direction, it can prevent the movable member 200 from shifting due to uneven force during the movement.

[0055] Regarding the movement of the movable part 200 in the X-axis or Y-axis direction. When the movable part 200 needs to be translated in the X-axis direction, the first SMA wire 410 is energized to make it contract and pull the movable part 200 to move; the second SMA wire 420 and the third SMA wire 430 are energized with the same and constant small current to keep them in a slightly tensioned state. At this time, the movable part 200 slides relative to the second SMA wire 420 and the third SMA wire 430, and the V-shaped vertex on the second SMA wire 420 slides on the second SMA wire 420, and the V-shaped vertex on the third SMA wire 430 slides on the third SMA wire 430, which can be The second SMA wire 420 or the third SMA wire 430 is prevented from limiting the movement of the movable part 200 due to the limited telescopic length, thereby increasing the anti-shake stroke of the optical image stabilization motor; in addition, slightly tensioning the second SMA wire 420 and the third SMA wire 430 can also prevent the movable part 200 from abnormal deflection during the translation process, which is beneficial to improving the movement accuracy; passing a continuously changing small current through the fourth SMA wire 440 to keep it slightly tensioned can apply a force opposite to the movement direction to the movable part 200, making its movement process more controllable.

[0056] Regarding the movement of the movable member 200 in the diagonal direction toward the stationary member 110. When the movable member 200 needs to move in the diagonal direction toward the stationary member 110, the first SMA wire 410 is energized to make it contract and pull the movable member 200 to translate in the X-axis direction. At this time, the lengths of the two sides of the V-shape of the first SMA wire 410 are equal, and then the second SMA wire 420 is energized to make it contract and pull the movable member 200 to translate in the Y-axis direction. During this process, the first SMA wire 410 remains in a tensioned state, and the movable member 200 slides relative to the first SMA wire 410 and the second SMA wire 420 at the same time, that is, the V-shaped vertex on the first SMA wire 410 slides on the first SMA wire 410, and the V-shaped vertex on the second SMA wire 420 slides on the second SMA wire 420. Such a setting can increase the translation range of the movable member 200, which is beneficial to improving the anti-shake performance of the optical anti-shake motor.

[0057] refer to Figure 1 , Figure 3 and Figure 4 In some embodiments of the present application, a roll portion 210 is provided on the movable member 200 , and a slide groove 211 is formed on the roll portion 210 .

[0058] It is understandable that the coil 210 and the movable member 200 are integrally formed. This configuration can simplify the manufacturing process of the movable member 200 and facilitate the threading of each SMA wire 400 .

[0059] refer to Figure 7 and Figure 8, in some embodiments of the present application, it further includes a push block 500. The push block 500 is provided with a receiving groove 550. The middle part of the SMA wire 400 is passed through the receiving groove 550, and the push block 500 abuts against the movable member 200.

[0060] It can be understood that the SMA wire 400 and the movable member 200 can also adopt the following connection method, that is: the SMA wire 400 is passed through the receiving groove 550 of the push block 500, and the push block 500 abuts against the movable member 200. When the SMA wire 400 is energized and contracts, it pulls the push block 500, so that the push block 500 pushes the movable member 200 to move. There are various forms of abutment between the push block 500 and the movable member 200. For example, a groove is opened on the movable member 200, and the push block 500 is embedded in the groove of the movable member 200. Or a blocking structure is provided on the movable member 200, and the push block 500 abuts against the blocking structure to make the push block 500 push the movable member 200 to move. The abutment form is not limited to this.

[0061] Specifically, the push block 500 is made of an insulating material, such as plastic or other materials. Of course, an insulating material can also be coated on the surface of the push block 500; the receiving groove 550 is an arc-shaped groove. Specifically, the arc-shaped groove is opened on one side of the push block 500 facing the movable member 200. Such a setting facilitates the threading of the SMA wire 400; the arc direction of the arc-shaped groove is the same as the bending direction of the SMA wire 400, and the depth of the arc-shaped groove is much larger than the diameter of the SMA wire 400. The middle section of the SMA wire 400 is passed through the arc-shaped groove; by such a setting, it can be avoided that the movable member 200 directly rubs against the SMA wire 400 during the movement process, reducing the wear of the SMA wire 400 and being beneficial to improving the service life of the optical image stabilization motor.

[0062] Reference Figure 7 and Figure 8 , in some embodiments of the present application, the push block 500 is arranged between the stationary member 110 and the movable member 200. A blocking block 220 bent toward the stationary member 110 is arranged in the middle of the side wall of the movable member 200, and the push block 500 abuts against the blocking block 220.

[0063] Specifically, a blocking block 220 bent toward the stationary member 110 is arranged on one side of the movable member 200 opposite to the SMA wire 400. The push block 500 abuts against the blocking block 220. The SMA wire 400 is passed through the arc-shaped groove. When the SMA wire 400 is energized and contracts, it pulls the push block 500 to slide. After the push block 500 abuts against the blocking block 220, it pushes the movable member 200 to move, realizing the anti-shake movement.

[0064] Among them, the push blocks 500 corresponding to the respective SMA wires 400 are the first push block 510, the second push block 520, the third push block 530, and the fourth push block 540 respectively.

[0065] Regarding the movement of the movable member 200 in the X-axis or Y-axis direction. When the movable member 200 needs to move in the X-axis direction, a relatively large current is passed through the first SMA wire 410, causing a relatively large contraction amount of the first SMA wire 410, thereby pulling the first push block 510 to push the movable member 200 to move in the X-axis direction. At the same time, the same and constant small current is passed through the second SMA wire 420 and the third SMA wire 430 to keep them in a slightly tensioned state, so that the second push block 520 and the third push block 530 abut against the stopper 220 of the movable member 200 to prevent the movable member 200 from shifting during movement; during this process, the positions of the second push block 520 and the third push block 530 relative to the stationary member 110 remain unchanged, and the movable member 200 slides relative to the second push block 520 and the third push block 530, thereby avoiding direct frictional contact between the movable member 200 and the SMA wire 400 during movement, thus reducing the wear of the SMA wire 400.

[0066] Regarding the movement of the movable member 200 in the diagonal direction of the stationary member 110. When the movable member 200 needs to move in the diagonal direction of the stationary member 110, a relatively large current is passed through the first SMA wire 410 to pull the first push block 510 to push the movable member 200 to move in the X-axis direction. Then, a relatively large current is passed through the second SMA wire 420 to pull the second push block 520 to push the movable member 200 to move in the Y-axis direction. During the process of the second push block 520 pushing the movable member 200 to move, the position of the first push block 510 relative to the stationary member 110 remains unchanged, and the stopper 220 of the movable member 200 slides frictionally with the first push block 510, thereby avoiding frictional contact between the movable member 200 and the SMA wire 400 during movement.

[0067] It can be understood that the contact surface between the push block 500 and the stopper 220 is an arc surface. The arc-shaped contact surface between the push block 500 and the stopper 220 can reduce the friction between the push block 500 and the stopper 220 of the movable member 200, which is beneficial to improving the smoothness of the anti-shake movement. It should be understood that the push block 500 can be set as a cylindrical shape or other geometric shapes, as long as the surface in contact with the stopper 220 of the movable member 200 is an arc surface, and the geometric shape is not limited thereto.

[0068] By setting it like this, the SMA wire 400 contracts and pulls the push block 500 to move when electrified, and the contact position between the SMA wire 400 and the push block 500 remains basically unchanged. Therefore, the friction between the SMA wire 400 and the push block 500 can be ignored, avoiding direct friction between the SMA wire 400 and the movable member 200, which can greatly reduce the wear of the SMA wire 400 and is beneficial to improving the structural reliability and working life of the optical image stabilization motor.

[0069] Reference Figure 7 and Figure 8In some embodiments of the present application, a first elastic arm 600 is further included, and the first elastic arm 600 connects the push block 500 and the stationary member 110.

[0070] It is understandable that the first elastic arms 600 may be arranged in a variety of ways. For example, two first elastic arms 600 are arranged corresponding to each pushing block 500 , and the two first elastic arms 600 are respectively arranged on both sides of the pushing block 500 .

[0071] It is understandable that the first elastic arm 600 can also be configured in the following form, that is, both ends of the first elastic arm 600 are fixedly arranged on the stationary member 110, the push block 500 is fixedly arranged on the middle of the first elastic arm 600, and the rigidity of the first elastic arm 600 along the Z-axis direction is greater than the rigidity perpendicular to the Z-axis direction. By configuring in this way, the first elastic arm 600 can be configured to be longer, which is conducive to increasing its elasticity and making it easier to assemble with the push block 500.

[0072] The first elastic arm 600 is configured in this way, which has at least the following advantages: first, when the SMA wire 400 is energized and contracted, the SMA wire 400 pulls the push block 500 to move, and the first elastic arm 600 undergoes elastic deformation in a direction perpendicular to the Z-axis. After the SMA wire 400 is powered off, the SMA wire 400 is in a relaxed state, and the movable part 200 cannot automatically reset quickly. Therefore, the first elastic arm 600 resets without external force, thereby indirectly driving the movable part 200 to return to the position of the initial state; second, when the optical image stabilization motor is subjected to a large abnormal impact, the first elastic arm 600 can limit the shaking of the push block 500 within a certain range to prevent the push block 500 from shaking too much and then pushing the movable part 200 to collide with other parts, causing the movable part 200 to be damaged or stuck, or causing the SMA wire 400 to be pulled too much and break, etc., effectively ensuring that the positions of various components in the optical image stabilization motor are within a safe range, thereby improving the reliability of the optical image stabilization motor.

[0073] In addition, a sliding bearing 300 is provided between the stationary part 110 and the movable part 200. The sliding bearing 300 allows the movable part 200 to be movably mounted on the stationary part 110 to reduce the sliding friction between the stationary part 110 and the movable part 200. At the same time, the sliding bearing 300 itself has a relatively small thickness, which is beneficial to reducing the thickness of the optical image stabilization motor and realizing the miniaturization of the device.

[0074] It should be understood that in order to enable the movable member 200 to move only in the X-axis or Y-axis direction, a limiting structure is provided between the stationary member 110 and the movable member 200. The movable member 200 moves along the X-axis or Y-axis under the constraint of the limiting structure. When the optical image stabilization motor is subjected to a large abnormal impact, the limiting structure can control the displacement of the movable member 200 within a certain range to prevent the movable member 200 from deviating from the preset position, or the shaking amplitude of the movable member 200 is too large, resulting in the breakage of the SMA wire 400, affecting the normal operation of the optical image stabilization motor, so as to improve the reliability of the optical image stabilization motor.

[0075] Specifically, referring to Figure 1 and Figure 2 , in some embodiments of the present application, the limiting structure is the second elastic arm 230. A plurality of second elastic arms 230 are provided and are evenly arranged around the movable member 200. The second elastic arms 230 connect the movable member 200 and the stationary member 110.

[0076] It can be understood that the limiting structure is the second elastic arm 230. Specifically, four second elastic arms 230 are evenly arranged around the movable member 200. By such an arrangement, when the optical image stabilization motor is subjected to an impact force in the Z-axis direction, the second elastic arms 230 can limit the displacement of the movable member 200 in the Z-axis direction within a certain range, avoiding excessive displacement stroke of the movable member 200 and causing the breakage of the SMA wire 400. At the same time, it can also improve the stress condition of the movable member 200, making the stress on each part of the movable member 200 tend to be consistent, effectively avoiding the situation that the movable member 200 deflects due to uneven stress and causing jamming. The second elastic arm 230 is L-shaped. By such an arrangement, the elasticity of the second elastic arm 230 can be increased. When the SMA wire 400 is energized and contracts to pull the movable member 200 to move, the second elastic arm 230 can better match the movement of the movable member 200 and reduce the resistance when the movable member 200 moves; at the same time, such an arrangement enables the second elastic arm 230 to have a reset ability. When the SMA wire 400 is powered off and relaxed, each second elastic arm 230 quickly resets the movable member 200 to prepare for the next anti-shake movement.

[0077] For the convenience of processing, the second elastic arm 230 and the movable member 200 are integrally formed, and can be formed by punching or etching the same plate. Of course, according to the actual situation, the second elastic arm 230 can also be set as other types of elastic structures, such as an S-shaped continuously bent elastic structure, etc.

[0078] Specifically, referring to Figure 5 , Figure 7 and Figure 8 , in some embodiments of the present application, the limiting structure is the magnet 700. The magnet 700 is fixedly arranged on the stationary member 110 and / or the movable member 200. The magnet 700 is used to limit the movement of the movable member 200 in the direction away from the stationary member 110 by magnetic force.

[0079] It can be understood that in addition to the above-mentioned second elastic arm 230, a magnet 700 can also be selected as the limiting structure. The magnet 700 can be arranged on the stationary member 110 or on the movable member 200. When it is arranged on the stationary member 110, the movable member 200 is made of a magnetic attraction material; when it is arranged on the movable member 200, the stationary member 110 is made of a magnetic attraction material.

[0080] Specifically, the magnet 700 is fixedly arranged on the stationary member 110. Such an arrangement can reduce the thickness of the optical image stabilization motor. At the same time, the movable member 200 is made of a magnetic material, such as iron and other materials. The magnet 700 tightly adsorbs the movable member 200, so that the movable member 200 is closely attached to the sliding bearing 300, thereby restricting the movable member 200 from moving away from the stationary member 110. It should be understood that a plurality of magnets 700 are provided. Preferably, four magnets 700 are provided, and the connection lines between the magnets 700 are in a rectangular shape. Such an arrangement can make the magnetic forces received by each part of the movable member 200 tend to be consistent, which is beneficial to improving the reliability of the movement of the movable member 200.

[0081] The electronic device according to the second aspect embodiment of the present application includes the above-mentioned optical image stabilization motor.

[0082] The embodiments of the present application have been described in detail above with reference to the drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of the present application.

Claims

1. An optical image stabilization motor, characterized in that, Comprising: A stationary member, the stationary member being rectangular, and two fixed ends are respectively provided at both ends of each side of the stationary member, and the two fixed ends on each side form a group; A movable member, the movable member being movably arranged along one side surface of the stationary member; An SMA wire, the SMA wire being V-shaped, and both ends of the SMA wire are respectively fixedly connected to the stationary member; the position of the V-shaped vertex on the SMA wire is movably connected to the movable member, so that the position of the V-shaped vertex can move on the SMA wire; the SMA wire can be energized and contracted to drive the movable member to move towards the side of its V-shaped opening; there are four SMA wires, including a first SMA wire, a second SMA wire, a third SMA wire and a fourth SMA wire, and each SMA wire is respectively electrically connected to the two fixed ends in the same group; A push block, the push block is provided with a receiving groove, the receiving groove is an arc-shaped groove and the arc direction of the arc-shaped groove is the same as the bending direction of the SMA wire, the middle part of the SMA wire passes through the receiving groove, and the push block abuts against the movable member; the push block is arranged between the stationary member and the movable member, a blocking block bent towards the stationary member is arranged in the middle of the side wall of the movable member, the push block abuts against the blocking block, the push block is arranged corresponding to the SMA wire, and respectively includes a first push block, a second push block, a third push block and a fourth push block; when the SMA wire is energized and contracted to pull the push block to slide, after the push block abuts against the blocking block, the movable member is pushed to move; A first elastic arm, the first elastic arm connecting the push block and the stationary member, and the stiffness of the first elastic arm in the Z-axis direction is greater than the stiffness in the direction perpendicular to the Z-axis; And A limiting structure, the limiting structure is arranged between the stationary member and the movable member, and the movable member moves along the X-axis or the Y-axis under the constraint of the limiting structure.

2. The optical image stabilization motor according to claim 1, wherein The limiting structure includes: A second elastic arm arranged between the stationary member and the movable member, there are a plurality of second elastic arms and they are evenly arranged around the movable member, and the second elastic arm connects the movable member and the stationary member.

3. The optical image stabilization motor according to claim 1, characterized in that, The limiting structure includes: A magnet arranged between the stationary member and the movable member, the magnet is fixedly arranged on the stationary member and / or the movable member, and the magnet is used to limit the movable member from moving away from the stationary member by magnetic force.

4. An electronic device, characterized in that: Including the optical image stabilization motor according to any one of claims 1 to 3.

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