CN112901434A

CN112901434A - Optical anti-shake motor and electronic apparatus

Info

Publication number: CN112901434A
Application number: CN202110174133.0A
Authority: CN
Inventors: 刘述伦; 耿新龙; 罗超
Original assignee: Dongguan Yadeng Electronics Co Ltd
Current assignee: Guangdong haideya Technology Co.,Ltd.
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-04

Abstract

The application discloses optics anti-shake motor and electronic equipment belongs to optics anti-shake technical field. The application discloses optics anti-shake motor includes: a stationary member; the movable piece is movably arranged along one side surface of the static piece; the SMA wire is V-shaped, and two ends of the SMA wire are respectively fixedly connected with the static part; the position of the V-shaped vertex on the SMA wire is movably connected with the movable piece so that the position of the V-shaped vertex can move on the SMA wire or the movable piece can slide relative to the V-shaped vertex; the SMA wire can be electrified and contracted and is used for driving the movable piece to move towards one side of the V-shaped opening of the movable piece. The application discloses optics anti-shake motor, SMA line so set up the effect that can play the enlarged stroke, are favorable to reducing the volume of optics anti-shake motor.

Description

Optical anti-shake motor and electronic apparatus

Technical Field

The application relates to the technical field of optical anti-shake, in particular to an optical anti-shake motor and electronic equipment.

Background

Sma (shape memory alloy) is a material made of two or more metal materials having a Shape Memory Effect (SME) by thermo-elastic and martensitic transformation and inversion thereof. SMA can be deformed at a relatively low temperature and can recover its shape prior to deformation after being electrically heated. Thus achieving electrically controllable retraction.

Although the SMA wire has a large driving force and is an ideal part for realizing anti-shake motion, the SMA wire is limited by a very limited telescopic length, so that the anti-shake stroke is very limited. In the related art, in order to realize the anti-shake compensation of the driven member with a large stroke on the plane perpendicular to the optical axis, the voice coil motor is often adopted to realize the anti-shake compensation, but the voice coil motor cannot be thinned due to structural limitation, so that the thickness and the size of the device are large, and the miniaturization of the device is not facilitated.

Disclosure of Invention

The present application is directed to solving one of the technical problems in the prior art. To this end, the present application proposes an optical anti-shake motor and an electronic apparatus. The application discloses optics anti-shake motor, its simple structure, the volume is less, and the drive stroke is great.

An optical anti-shake motor according to an embodiment of a first aspect of the present application includes:

a stationary member;

the movable piece is movably arranged along one side surface of the static piece;

the SMA wire is V-shaped, and two ends of the SMA wire are respectively fixedly connected with the static part; the position of a V-shaped vertex on the SMA wire is movably connected with the movable piece so that the position of the V-shaped vertex can move on the SMA wire or the movable piece can slide relative to the V-shaped vertex; the SMA wire can be electrified and contracted and is used for driving the movable piece to move towards one side of the V-shaped opening of the movable piece.

According to the optical anti-shake motor of the embodiment of the application, at least the following beneficial effects are achieved:

the SMA wire is bent in a V shape, when the SMA wire is electrified and contracted to pull the moving part to move, a V-shaped included angle on the SMA wire is enlarged, the distance between V-shaped vertexes before and after the SMA wire is electrified is the translation distance of the moving part relative to the static part, the distance between the V-shaped vertexes before and after the SMA wire is electrified is far greater than the contraction length of the SMA wire, and when the V-shaped included angle on the SMA wire is larger, the same amount of the SMA wire is contracted, and the distance for moving the V-shaped vertexes is larger, so that the stroke enlarging effect is achieved. Therefore, the length of the SMA wire can be reduced under the condition of a certain motion stroke, so that the volume of the optical anti-shake motor is reduced, and the miniaturization of equipment is facilitated.

According to some embodiments of the application, the SMA wire is provided with at least two SMA wires and is used for driving the movable member to move along two directions perpendicular to each other respectively.

According to some embodiments of the application, be provided with the spout on the moving part, the spout set up in the middle part of moving part side, the middle part of SMA wire is worn to locate the spout and is formed V type summit.

According to some embodiments of the application, a roll portion is provided on the movable member, the roll portion being formed with the sliding groove.

According to some embodiments of this application, still include the ejector pad, the holding tank has been seted up to the ejector pad, SMA wire middle part is worn to locate the holding tank, the ejector pad with the moving part butt.

According to some embodiments of the application, the ejector pad set up in the stationary member with between the moving part, the lateral wall middle part of moving part is provided with towards the dog that the stationary member is buckled, the ejector pad with the dog butt.

According to some embodiments of the present application, further comprising a first resilient arm connecting the push block and the stationary member.

According to some embodiments of the application, be provided with the second elastic arm between the stationary member with the moving part, the second elastic arm is provided with a plurality ofly and evenly sets up around the moving part, the second elastic arm is connected the moving part with the stationary member.

According to some embodiments of the application, a magnet is 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 for limiting the movable member to move towards a direction away from the stationary member through magnetic force.

According to the electronic equipment of the embodiment of the second aspect of the application, the optical anti-shake motor is included.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of an optical anti-shake motor according to an embodiment of the first aspect of the present application.

Fig. 2 is an exploded view of an optical anti-shake motor according to an embodiment of the first aspect of the present application.

Fig. 3 is an enlarged view of a point a in fig. 1.

Fig. 4 is a perspective view of an optical anti-shake motor according to another embodiment of the first aspect of the present application.

Fig. 5 is an exploded view of an optical anti-shake motor according to another embodiment of the first aspect of the present application.

Fig. 6 is a perspective view of an optical anti-shake motor according to still another embodiment of the first aspect of the present application.

Fig. 7 is a partially exploded view of an optical anti-shake motor according to still another embodiment of the first aspect of the present application.

Fig. 8 is an exploded view of an optical anti-shake motor according to yet another embodiment of the first aspect of the present application.

Reference numerals:

a stationary member 110; a fixed end 120;

a movable member 200; a roll portion 210; a chute 211; a stopper 220; a second resilient arm 230;

a sliding bearing 300;

an SMA wire 400;

a first SMA wire 410; a second SMA wire 420; a third SMA wire 430; a fourth SMA wire 440;

a push block 500;

a first push block 510; a second push block 520; a third push block 530; a fourth push block 540; an accommodating groove 550;

a first resilient arm 600;

a magnet 700.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, left, right, front, rear, and the like, referred to as positional or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected, etc., should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application in view of the detailed contents of the technical solutions.

An optical anti-shake motor according to an embodiment of the first aspect of the present application is described below with reference to fig. 1 to 8.

Referring to fig. 1, 4 and 6, an optical anti-shake motor according to an embodiment of the first aspect of the present application includes:

a stationary member 110;

the movable piece 200, the movable piece 200 is movably arranged along one side surface of the stationary piece 110;

the SMA wire 400 is V-shaped, and two ends of the SMA wire 400 are respectively fixedly connected with the stationary part 110; the position of the V-shaped vertex on the SMA wire 400 is movably connected with the movable piece 200, so that the position of the V-shaped vertex can move on the SMA wire 400, or the movable piece 200 can slide relative to the V-shaped vertex; the SMA wire 400 is electrically retractable to drive the moveable member 200 toward the V-shaped opening side thereof.

Specifically, the SMA wire 400 is bent in a V-shape, when the SMA wire 400 is electrically contracted to pull the movable member 200 to move, a V-shaped included angle on the SMA wire 400 is increased, a distance between V-shaped vertexes before and after the SMA wire 400 is electrically electrified is a translation distance of the movable member 200 relative to the stationary member 110, and a distance between the V-shaped included angle vertexes before and after the SMA wire 400 is electrically electrified is far greater than a contraction length of the SMA wire 400. And, when the V-shaped included angle on the SMA wire 400 is larger, the SMA wire 400 contracts by the same amount, and the distance moved by the V-shaped vertex is larger, thereby playing a role of enlarging the stroke. Therefore, the length of the SMA wire 400 can be reduced with a constant movement stroke, thereby reducing the volume of the optical anti-shake motor and facilitating the miniaturization of the apparatus.

In some embodiments of the present application, the SMA wire 400 is provided with at least two pieces, and is respectively used to drive the movable member 200 to move in two directions perpendicular to each other.

For example, in some cases, the movable plate 200 has a rectangular shape, and the SMA wires 400 are disposed along two adjacent sides of the movable plate 200, and one of the SMA wires 400 is electrified to contract, thereby pulling the movable plate 200 to move in one direction.

It is understood that in other cases, four SMA wires 400 may be provided. Specifically referring to fig. 1, 4 and 6, the stationary member 110 is rectangular, the fixed ends 120 are disposed on the stationary member 110 along four sides, specifically, two fixed ends 120 are disposed along two ends of each side of the stationary member 110, the two fixed ends 120 on each side are in a group, four SMA wires 400 are disposed, which are respectively 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, the movable member 200 is disposed on a side surface of the stationary member 110, and each SMA wire 400 is movably connected to each side of the movable member 200.

Specifically, taking the moving element 200 moving in the X-axis direction as an example: the first SMA wire 410 is electrified to contract and pull the movable member 200 to move in the X-axis direction, and at this time, the second SMA wire 420, the third SMA wire 430 and the fourth SMA wire 440 are movably connected with the movable member 200, so that the movable member 200 can move relative to the second SMA wire 420 and the third SMA wire 430 in the process of translation, that is, the contact points of the second SMA wire 420 and the third SMA wire 430 with the movable member 200 change along with the movement of the movable member 200. Compared with the mode that the connection point of the SMA wire 400 and the movable member 200 is fixed, the movable member 200 can be prevented from being pulled to a certain degree and then being not elongated in the process of moving in the X-axis direction, so that the movement of the movable member 200 is limited, and the optical anti-shake effect is influenced. With this arrangement, the movement stroke of the movable member 200 can be increased, thereby improving the anti-shake performance of the optical anti-shake motor.

Referring to fig. 1, 3 and 4, in some embodiments of the present application, a sliding groove 211 is disposed on the movable member 200, the sliding groove 211 is disposed in a middle portion of a side of the movable member 200, and a middle portion of the SMA wire 400 penetrates through the sliding groove 211 and forms a V-shaped peak.

It is understood that the SMA wire 400 and the moveable member 200 may be connected in the following manner, namely: the SMA wire 400 penetrates through the sliding groove 211 of the moving member 200 and is slidably connected with the moving member 200, the sliding groove 211 is disposed in the middle of the side edge of the moving member 200, and when the SMA wire 400 pulls the moving member 200 to move in one direction, the moving member 200 can be prevented from shifting due to uneven stress in the moving process.

Moves about the moveable member 200 in either the X-axis or Y-axis directions. When the movable piece 200 needs to translate in the X-axis direction, the first SMA wire 410 is electrified to contract and pull the movable piece 200 to move; when the second SMA wire 420 and the third SMA wire 430 are energized with the same constant micro current to keep the two SMA wires in a slightly tensioned state, the movable member 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, so that the second SMA wire 420 or the third SMA wire 430 is prevented from being limited to the movement of the movable member 200 due to the limited extension length, and the anti-shake stroke of the optical anti-shake motor is improved; in addition, the slight tension of the second SMA wire 420 and the third SMA wire 430 can also prevent the moving piece 200 from abnormal deflection in the translation process, which is beneficial to improving the motion precision; the fourth SMA wire 440 is slightly held in tension by a continuously varying small current, which applies a force to the moveable member 200 in a direction opposite to the direction of movement, making the movement more controllable.

With respect to the movable member 200 moving diagonally toward the stationary member 110. When the moving member 200 needs to move in the diagonal direction of the stationary member 110, the first SMA wire 410 is energized to contract and pull the moving 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, then the second SMA wire 420 is energized to contract and pull the moving member 200 to translate in the Y-axis direction, during this process, the first SMA wire 410 keeps a tensioned state, and the moving 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. The arrangement can increase the translation range of the movable element 200, and is favorable for improving the anti-shake performance of the optical anti-shake motor.

Referring to fig. 1, 3 and 4, in some embodiments of the present application, a roll 210 is provided on the mover 200, and the roll 210 is formed with a sliding groove 211.

It can be appreciated that the rolled portion 210 is integrally formed with the movable member 200, and thus, the manufacturing process of the movable member 200 can be simplified and the SMA wires 400 can be easily inserted therethrough.

Referring to fig. 7 and 8, in some embodiments of the present application, the sliding device further includes a push block 500, the push block 500 defines an accommodating groove 550, the middle portion of the SMA wire 400 passes through the accommodating groove 550, and the push block 500 abuts against the movable element 200.

It is understood that the SMA wire 400 and the movable member 200 may also be connected in the following manner: the SMA wire 400 is inserted into the accommodating groove 550 of the push block 500, and the push block 500 abuts against the movable member 200. The SMA wire 400 is electrically contracted to pull the push block 500, thereby causing the push block 500 to push the movable member 200 to move. The abutting form of the push block 500 and the moving element 200 may be various, for example, a groove is formed on the moving element 200, the push block 500 is embedded in the groove of the moving element 200, or a blocking structure is arranged on the moving element 200, the push block 500 abuts against the blocking structure so that the push block 500 pushes the moving element 200 to move, and the abutting form is not limited thereto.

Specifically, the push block 500 is made of an insulating material, such as plastic or other materials, and of course, the surface of the push block 500 may also be coated with the insulating material; the accommodating groove 550 is an arc-shaped groove, specifically, the arc-shaped groove is formed on one surface of the push block 500 opposite to the movable member 200, so that the SMA wire 400 can be conveniently inserted; the arc direction of the arc-shaped groove is consistent with the bending direction of the SMA wire 400, the depth of the arc-shaped groove is far greater than the diameter of the SMA wire 400, and the middle section of the SMA wire 400 penetrates through the arc-shaped groove; through such setting, can avoid direct and SMA wire 400 frictional contact in the moving process of moving part 200, reduce the wearing and tearing of SMA wire 400, be favorable to improving optical anti-shake motor's life.

Referring to fig. 7 and 8, in some embodiments of the present application, the pushing block 500 is disposed between the stationary member 110 and the movable member 200, the middle portion of the sidewall of the movable member 200 is provided with a stopper 220 bent toward the stationary member 110, and the pushing block 500 abuts against the stopper 220.

Specifically, one side of the movable member 200 opposite to the SMA wire 400 is provided with a stopper 220 bent towards the stationary member 110, the push block 500 abuts against the stopper 220, the SMA wire 400 penetrates through the arc-shaped groove, the SMA wire 400 is electrically contracted to pull the push block 500 to slide, and the push block 500 abuts against the stopper 220 to push the movable member 200 to move, so that the anti-shaking movement is realized.

The push blocks 500 corresponding to the SMA wires 400 are a first push block 510, a second push block 520, a third push block 530 and a fourth push block 540, respectively.

Moves about the moveable member 200 in either the X-axis or Y-axis directions. When the moving member 200 needs to move in the X-axis direction, a large current is applied to the first SMA wire 410, so that the contraction amount of the first SMA wire 410 is large, the first push block 510 is pulled to push the moving member 200 to move in the X-axis direction, and meanwhile, the same and constant micro current is applied to the second SMA wire 420 and the third SMA wire 430, so that the second push block 520 and the third push block 530 keep a slightly tensioned state, and the second push block 520 and the third push block 530 are abutted against the stopper 220 of the moving member 200, so that the moving member 200 is prevented from shifting in the moving process; in the process, the positions of the second pushing block 520 and the third pushing block 530 relative to the stationary member 110 are kept unchanged, and the movable member 200 slides relative to the second pushing block 520 and the third pushing block 530, so that the movable member 200 is prevented from directly and frictionally contacting the SMA wire 400 during the movement process, and the abrasion of the SMA wire 400 is reduced.

With respect to the movable member 200 moving diagonally toward the stationary member 110. When the movable member 200 needs to move in the diagonal direction of the stationary member 110, a large current is applied to 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, and then a large current is applied to 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, so that the position of the first push block 510 relative to the stationary member 110 remains unchanged during the movement of the movable member 200 pushed by the second push block 520, and the stopper 220 of the movable member 200 and the first push block 510 rub against each other, thereby preventing the movable member 200 from rubbing against the SMA wire 400 during the movement.

It can be understood that the contact surface of the push block 500 and the stop block 220 is a cambered surface. The contact surface of the push block 500 and the stopper 220 is an arc surface, which can reduce the friction between the push block 500 and the stopper 220 of the movable member 200, and is beneficial to improving the smoothness of the anti-shake movement. It should be understood that, the pushing block 500 may be configured to be cylindrical, or may be configured to have other geometric shapes, only the surface of the pushing block 500 abutting against the stopper 220 of the movable element 200 is required to be an arc surface, and the geometric shape is not limited thereto.

Through such setting, SMA wire 400 circular telegram contracts the pulling ejector pad 500 and moves, and the contact position of SMA wire 400 and ejector pad 500 remains unchanged basically, and consequently the friction between SMA wire 400 and ejector pad 500 can be neglected, avoids SMA wire 400 and moving part 200 direct friction, can greatly reduce the wearing and tearing of SMA wire 400, is favorable to improving optics anti-shake motor structure reliability and life.

Referring to fig. 7 and 8, in 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.

It is understood that the first elastic arms 600 may be disposed in various manners, for example, two first elastic arms 600 are disposed on each pushing block 500, and the two first elastic arms 600 are disposed on two sides of the pushing block 500 respectively.

It will be appreciated that the first resilient arm 600 may also be provided in the form of: both ends of the first elastic arm 600 are fixedly disposed on the stationary member 110, the push block 500 is fixedly disposed in the middle of the first elastic arm 600, and the stiffness of the first elastic arm 600 along the Z-axis direction is greater than the stiffness perpendicular to the Z-axis direction. By such arrangement, the first elastic arm 600 can be longer, which is beneficial to increasing the elasticity thereof and is convenient to assemble with the push block 500.

The first resilient arm 600 is arranged in such a way that at least the following advantages exist: firstly, when the SMA wire 400 is electrified and contracted, the SMA wire 400 pulls the push block 500 to move, the first elastic arm 600 is elastically deformed in the direction vertical to the Z axis, after the SMA wire 400 is powered off, the SMA wire 400 is in a relaxed state, and the movable member 200 cannot be quickly and automatically reset, so that the first elastic arm 600 resets without the action of external force, and the movable member 200 is indirectly driven to return to the position of the initial state; secondly, when optics anti-shake motor received great abnormal impact, first elastic arm 600 can be with the rocking restriction of ejector pad 500 in certain extent to the ejector pad 500 rocks the stroke too big and then promotes moving part 200 and other spare parts collisions, causes moving part 200 impaired or screens, also or leads to SMA wire 400 to drag the degree too big and the condition emergence such as fracture appears, effectively guarantees that the position of each part is within safety range in the optics anti-shake motor, improves optics anti-shake motor's reliability.

In addition, a sliding bearing 300 is arranged between the stationary member 110 and the movable member 200, and the sliding bearing 300 can enable the movable member 200 to movably span the stationary member 110 so as to reduce sliding friction between the stationary member 110 and the movable member 200; meanwhile, the sliding bearing 300 is small in thickness, so that the thickness of the optical anti-vibration motor is reduced, and the size of the device is miniaturized.

It should be understood that, in order to make the movable element 200 move only in the X-axis or Y-axis direction, a limiting structure is disposed between the stationary element 110 and the movable element 200, the movable element 200 moves along the X-axis or Y-axis under the constraint of the limiting structure, and when the optical anti-shake motor is subjected to a large abnormal impact, the limiting structure can control the displacement of the movable element 200 within a certain range, so as to prevent the movable element 200 from departing from a preset position, or prevent the SMA wire 400 from being broken due to a large shaking amplitude of the movable element 200, which affects the normal operation of the optical anti-shake motor, so as to improve the reliability of the optical anti-shake motor.

Specifically, referring to fig. 1 and 2, in some embodiments of the present application, the limiting structure is a second elastic arm 230, the second elastic arm 230 is provided in a plurality and uniformly arranged around the movable member 200, and the second elastic arm 230 connects the movable member 200 and the stationary member 110.

It will be appreciated that the limiting structure is a second resilient arm 230. Specifically, the second elastic arm 230 evenly sets up and is provided with four around moving part 200, through so setting up, when optics anti-shake motor received along the impact force of Z axle direction, the second elastic arm 230 can inject moving part 200 in certain extent at the displacement of Z axle direction, thereby avoid moving part 200 displacement stroke too big to cause SMA line 400 fracture, and simultaneously, can also improve the atress condition of moving part 200, make every position atress of moving part 200 tend to unanimously, effectively avoid moving part 200 to take place to deflect because of the atress inequality and lead to the condition such as screens to take place. The second elastic arm 230 is L-shaped, and the elasticity of the second elastic arm 230 can be increased by the arrangement, so that when the SMA wire 400 is electrified and contracted to pull the movable piece 200 to move, the second elastic arm 230 can better match with the movement of the movable piece 200, and the resistance of the movable piece 200 in movement is reduced; meanwhile, the second elastic arms 230 have a resetting capability, and 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.

For convenience of manufacture, the second resilient arm 230 is integrally formed with the movable member 200, and may be formed by punching or etching the same plate. Of course, the second elastic arm 230 may be configured as other types of elastic structures, such as an S-shaped continuously bent elastic structure.

Specifically, referring to fig. 5, 7 and 8, in some embodiments of the present application, the limiting structure is a magnet 700, the magnet 700 is fixedly disposed on the stationary member 110 and/or the movable member 200, and the magnet 700 is configured to limit the movable member 200 to move away from the stationary member 110 by a magnetic force.

It will be appreciated that the spacing structure may alternatively be a magnet 700 other than the second resilient arm 230 described above. The magnet 700 may be disposed on the stationary member 110 or disposed on the movable member 200, and when disposed on the stationary member 110, the movable member 200 is made of magnetic material; when disposed on the movable member 200, the stationary member 110 is made of magnetically attracted material.

Specifically, the magnet 700 is fixedly disposed on the stationary member 110, and thus the thickness of the optical anti-shake motor can be reduced; meanwhile, the movable member 200 is made of a magnetic material, such as iron; the magnet 700 tightly attracts the movable member 200 such that the movable member 200 is closely attached to the sliding bearing 300, thereby restricting the movable member 200 from moving in a direction away from the stationary member 110. It should be understood that the number of the magnets 700 is multiple, and preferably, the number of the magnets 700 is four, and the connecting line between the magnets 700 is rectangular, so that the magnetic force applied to each position on the moving part 200 tends to be consistent, which is beneficial to improving the reliability of the movement of the moving part 200.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.

Claims

1. An optical anti-shake motor, comprising:

a stationary member;

2. The optical anti-shake motor according to claim 1, wherein: the SMA wires are at least two and are respectively used for driving the moving piece to move along two directions which are perpendicular to each other.

3. The optical anti-shake motor according to claim 1, wherein: the movable piece is provided with a sliding groove, the sliding groove is formed in the middle of the side edge of the movable piece, and the middle of the SMA wire penetrates through the sliding groove and forms the V-shaped top point.

4. The optical anti-shake motor according to claim 3, wherein: the movable piece is provided with a rolling part, and the rolling part is provided with the sliding groove.

5. The optical anti-shake motor according to claim 1, wherein: still include the ejector pad, the holding tank has been seted up to the ejector pad, SMA wire middle part is worn to locate the holding tank, the ejector pad with the moving part butt.

6. The optical anti-shake motor according to claim 5, wherein: the push block is arranged between the static part and the moving part, a stop block bent towards the static part is arranged in the middle of the side wall of the moving part, and the push block is abutted to the stop block.

7. The optical anti-shake motor according to claim 5, wherein: the first elastic arm is connected with the push block and the static piece.

8. The optical anti-shake motor according to claim 1, wherein: and a second elastic arm is arranged between the static part and the moving part, a plurality of second elastic arms are arranged and evenly arranged around the moving part, and the second elastic arms are connected with the moving part and the static part.

9. The optical anti-shake motor according to claim 1, wherein: the magnet is arranged between the static part and the moving part, the magnet is fixedly arranged on the static part and/or the moving part, and the magnet is used for limiting the moving part to move towards the direction far away from the static part through magnetic force.

10. An electronic device, characterized in that: an optical anti-shake motor comprising any one of claims 1 to 9.