Image stabilization structure, camera module, and electronic device

Abstract

The present application provides an image stabilization structure (100), a camera module (1000), and an electronic device (1). The image stabilization structure (100) comprises a fixed member (110), a first movable member (130), a second movable member (120), and an image stabilization driving mechanism (140). The fixed member (110) is located between the first movable member (130) and the second movable member (120), the first movable member (130) is connected to a lens (200), and the second movable member (120) is connected to an image sensor (300). A first magnetic assembly (141) on the fixed member (110) and a second magnetic assembly (143) on the first movable member (130) constitute a voice coil motor, so that the lens (200) can move on the vertical plane of the optical axis of the lens (200). The first magnetic assembly (141) on the fixed member (110) and a third magnetic assembly (142) on the second movable member (120) form a voice coil motor, so that the image sensor (300) can move on the vertical plane of the optical axis of the lens (200). In a shaking environment, the camera module (1000) causes the first movable member (130) and the second movable member (120) to move, which can increase the amount of motion compensation, and implement optical image stabilization for the lens (200) and / or the image sensor (300). The image stabilization structure (100) reuses the first magnetic assembly (141), thus there are few parts, the structure is simple, and the overall structure occupies a small space. The voice coil motors have high image stabilization frequency and a good optical image stabilization effect.

Description

Anti-shake structure, camera module and electronic device

[0001] The present application claims priority to the Chinese Patent Application No. 202410545065.8, filed on April 30, 2024, entitled "Anti-shake structure, camera module and electronic device", and the Chinese Patent Application No. 202411012290.1, filed on July 24, 2024, entitled "Anti-shake structure, camera module and electronic device", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the technical field of camera structure, and in particular to an anti-shake structure, a camera module and an electronic device. BACKGROUND

[0003] The optical image stabilization (OIS) technology of the camera module is to compensate the movement of the image sensor and / or the lens during photographing of a photo or a video, so as to improve the optical imaging quality under the shaking condition. The bipolar optical image stabilization adjusts the positions of the lens and the image sensor to achieve a large amount of movement compensation, and can better improve the optical imaging quality. The related art bipolar optical image stabilization structure has the technical problems of complex components and large size. SUMMARY

[0004] Embodiments of the present application provide an anti-shake structure, a camera module and an electronic device, which solve the technical problems of complex components and large size of the related art bipolar optical image stabilization structure.

[0005] Embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, the embodiments of the present application provide an anti-shake structure, comprising: a fixed part, a first movable part, a second movable part and an anti-shake driving mechanism. The first movable part is used to be connected with a lens. The second movable part is used to be connected with an image sensor. The fixed part is located between the first movable part and the second movable part along the optical axis direction of the lens. The anti-shake driving mechanism comprises a first magnetic assembly, a second magnetic assembly and a third magnetic assembly. The first magnetic assembly is arranged on the fixed part. The second magnetic assembly is arranged on the first movable part, and the second magnetic assembly and the first magnetic assembly are arranged to face each other, and are used to drive the first movable part to move relative to the fixed part on the optical axis perpendicular plane of the lens. The third magnetic assembly is arranged on the second movable part, and the third magnetic assembly and the first magnetic assembly are arranged to face each other, and are used to drive the second movable part to move relative to the fixed part on the optical axis perpendicular plane of the lens.

[0007] The anti-shake structure provided by the embodiments of the present application is characterized in that the fixing member is located between the first movable member and the second movable member, the first movable member is connected with the lens, and the second movable member is connected with the image sensor. The first magnetic assembly on the fixing member and the second magnetic assembly on the first movable member constitute a voice coil motor, which can realize the movement of the first movable member and the lens in the plane perpendicular to the optical axis of the lens. The first magnetic assembly on the fixing member and the third magnetic assembly on the second movable member constitute a voice coil motor, which can realize the movement of the second movable member and the image sensor in the plane perpendicular to the optical axis of the lens. The camera module using the anti-shake structure can improve the motion compensation amount by moving the first movable member and the second movable member in a shaking environment, and can realize optical anti-shake of the image sensor and / or the lens and improve the imaging quality of the camera module. Compared with the camera module of the related art, which stacks two anti-shake driving motors in the optical axis direction, the anti-shake structure of the embodiments multiplexes the first magnetic assembly, has fewer components, has a simple structure, has a smaller size in the optical axis direction, and occupies a smaller space. Compared with the related art, which increases the length of the magnet and the coil to improve the motion compensation amount in single-pole optical anti-shake, the anti-shake structure of the embodiments uses dual-pole optical anti-shake of the lens and the image sensor, has a small size in the direction perpendicular to the optical axis, and occupies a small space. Compared with the SMA motor of the related art, the voice coil motor of the anti-shake structure of the embodiments has a higher anti-shake frequency and a better optical anti-shake effect. After the overall structure size is reduced, a larger size lens and image sensor can be configured to improve the imaging effect.

[0008] In an optional implementation, the first magnetic assembly includes a plurality of anti-shake magnetic members distributed around the optical axis of the lens, the second magnetic assembly includes a plurality of anti-shake coils distributed around the optical axis of the lens, and the third magnetic assembly includes a plurality of anti-shake coils distributed around the optical axis of the lens. The dual-pole moving coil voice coil motor can drive the first movable member and the second movable member to move in the XY plane by energizing the anti-shake coils in the second magnetic assembly and the anti-shake coils in the third magnetic assembly, and can obtain a larger motion compensation amount. By multiplexing the plurality of anti-shake magnetic members in the first magnetic assembly, the overall structure has a smaller size in the Z direction.

[0009] In an optional implementation, the multiple anti-shake magnetic pieces in the first magnetic assembly include a first anti-shake magnetic piece and a second anti-shake magnetic piece, the multiple anti-shake coils in the second magnetic assembly include a first anti-shake coil and a second anti-shake coil, and the multiple anti-shake coils in the third magnetic assembly include a third anti-shake coil and a fourth anti-shake coil; the first anti-shake coil, the first anti-shake magnetic piece, and the third anti-shake coil are arranged in sequence along the optical axis direction of the lens; the first anti-shake coil and the first anti-shake magnetic piece are used to drive the first movable piece to translate in a first direction; the third anti-shake coil and the first anti-shake magnetic piece are used to drive the second movable piece to translate in the first direction; the second anti-shake coil, the second anti-shake magnetic piece, and the fourth anti-shake coil are arranged in sequence along the optical axis direction of the lens; the second anti-shake coil and the second anti-shake magnetic piece are used to drive the first movable piece to translate in a second direction; the fourth anti-shake coil and the second anti-shake magnetic piece are used to drive the second movable piece to translate in the second direction; the first direction and the second direction intersect, and the optical axis direction of the lens is perpendicular to the first direction and the second direction. The first anti-shake magnetic piece and the second anti-shake magnetic piece on the fixed piece serve as a multiplexing part, and the overall structure occupies a small space.

[0010] In an optional implementation, the first anti-shake magnetic piece can have two opposite polarity directions, and the polarity direction of the first anti-shake magnetic piece is perpendicular to the winding plane of the first anti-shake coil (the winding plane of the third anti-shake coil). The winding plane of the first anti-shake coil (the winding plane of the third anti-shake coil) is perpendicular to the optical axis direction of the lens. The first anti-shake coil (the third anti-shake coil) can be a racetrack coil, and the length direction of the first anti-shake coil (the length direction of the third anti-shake coil) extends along the second direction.

[0011] In an optional implementation, the second anti-shake magnetic piece can have two opposite polarity directions. The polarity direction of the second anti-shake magnetic piece is perpendicular to the winding plane of the second anti-shake coil (the winding plane of the fourth anti-shake coil). The winding plane of the second anti-shake coil (the winding plane of the fourth anti-shake coil) is perpendicular to the optical axis direction of the lens. The second anti-shake coil (the fourth anti-shake coil) can be a racetrack coil, and the length direction of the second anti-shake coil (the length direction of the fourth anti-shake coil) extends along the first direction.

[0012] In an optional implementation, the multiple anti-shake magnetic pieces include a first anti-shake magnetic piece and a second anti-shake magnetic piece, and the fixed piece includes two connection segments that extend in different directions and are connected, one of the connection segments is provided with the first anti-shake magnetic piece, and the other connection segment is provided with the second anti-shake magnetic piece.

[0013] In an optional implementation, the plurality of anti-shake magnetic pieces include a first anti-shake magnetic piece and a second anti-shake magnetic piece, and the fixing piece includes four connection segments connected in sequence; two of the connection segments are provided with the first anti-shake magnetic piece respectively, and the other two of the connection segments are provided with the second anti-shake magnetic piece respectively.

[0014] In an optional implementation, the first movable piece is provided with a first position sensor, and the first position sensor and the first magnetic assembly are arranged to face each other.

[0015] In an optional implementation, the second movable piece is provided with a second position sensor, and the second position sensor and the first magnetic assembly are arranged to face each other.

[0016] In an optional implementation, the anti-shake structure further includes a shake detection piece and a driving chip; the shake detection piece is configured to detect a shake signal of the anti-shake structure; and the driving chip is configured to energize the second magnetic assembly and / or the third magnetic assembly according to the shake signal, so as to drive the first movable piece and / or the second movable piece to move in a plane perpendicular to an optical axis of the lens, and drive the image sensor on the first movable piece and the lens on the second movable piece to move in the plane perpendicular to the optical axis, thereby achieving optical anti-shake.

[0017] In an optional implementation, when a first condition is met, the driving chip can energize the second magnetic assembly and the third magnetic assembly, so as to drive the first movable piece and the second movable piece to move in the plane perpendicular to the optical axis of the lens, and drive the lens on the first movable piece and the image sensor on the second movable piece to move in the plane perpendicular to the optical axis, thereby achieving double-pole optical anti-shake.

[0018] In an optional implementation, when a second condition is met, the driving chip can energize the second magnetic assembly to drive the first movable piece to move in the plane perpendicular to the optical axis of the lens, or the driving chip can energize the third magnetic assembly to drive the second movable piece to move in the plane perpendicular to the optical axis of the lens. Only one of the lens and the image sensor is enabled for optical anti-shake, thereby meeting the anti-shake requirement for a small shake angle and reducing power consumption.

[0019] In an optional implementation, the shake signal includes a first shake signal part in a first frequency band and a second shake signal part in a second frequency band, the first frequency band and the second frequency band are disjointed; the driving chip is configured to energize the second magnetic assembly according to the first shake signal part, so as to drive the first movable piece to move in the plane perpendicular to the optical axis of the lens; and the driving chip is further configured to energize the third magnetic assembly according to the second shake signal part, so as to drive the second movable piece to move in the plane perpendicular to the optical axis of the lens. The lens on the first movable piece and the image sensor on the second movable piece are driven to move in the plane perpendicular to the optical axis, thereby achieving double-pole optical anti-shake.

[0020] In an optional implementation, when the electronic device is in a photographing mode or the like, optical anti-shake of the lens or optical anti-shake of the image sensor can be started alone.

[0021] In an optional implementation, in a scenario where the electronic device is in a video mode, a professional sports video mode, or the like, large-range shake compensation is performed by simultaneously adjusting the positions of the lens and the image sensor in the XY plane.

[0022] In an optional implementation, the optical sensor is configured to detect an ambient light intensity, and the driving chip is configured to determine an exposure time of the camera module according to the ambient light intensity, and to energize the second magnetic assembly and / or the third magnetic assembly according to the exposure time, so that the first movable component and / or the second movable component move in the plane perpendicular to the optical axis of the lens. The image sensor of the first movable component and the lens of the second movable component move in the plane perpendicular to the optical axis of the lens.

[0023] In an optional implementation, the fixed component is made of a magnetic conductive material, the first magnetic assembly is attached to a side of the fixed component facing the second movable component, or the first magnetic assembly is attached to a side of the fixed component facing the first movable component; the fixed component has at least one opening corresponding to the first magnetic assembly, and the first magnetic assembly covers the opening. The electromagnetic driving force of the second magnetic assembly and the third magnetic assembly is maximized, and the electromagnetic driving force of both is superior to that of a fixed component made of a non-magnetic conductive material without an opening. The connection strength between the first magnetic assembly and the fixed component is high. The first magnetic assembly and the fixed component are fixedly attached to each other, and the connection between them is reliable.

[0024] In an optional implementation, the anti-shake magnetic component in the first magnetic assembly cooperates with the anti-shake coil in the second magnetic assembly to drive the first movable component to move relative to the fixed component. The anti-shake magnetic component in the first magnetic assembly has two polarity portions, and the polarity directions of the two polarity portions are opposite and parallel to the direction of the optical axis of the lens. The fixed component has at least one opening corresponding to each polarity portion, and the area between adjacent openings on the fixed component is attached to the first magnetic assembly. The connection strength between the fixed component and the first magnetic assembly is further improved, and the electromagnetic driving force of the anti-shake driving mechanism is further improved.

[0025] In an optional implementation, in the plane perpendicular to the optical axis of the lens, the ratio of the projection area of the connection region between the first magnetic assembly and the fixed component to the projection area of the first magnetic assembly ranges from 1 / 3 to 1 / 2. The connection strength between the first magnetic assembly and the fixed component is improved, and the disconnection of the two is reduced. The magnetic lines of the first magnetic assembly are more guided through the opening to the second magnetic assembly, so that the second magnetic assembly generates a larger electromagnetic driving force to drive the first movable component and the lens to move.

[0026] In an alternative implementation, the fixing member has an avoiding position, and the first magnetic assembly is distributed in an area outside the avoiding position. The magnetic lines of the first magnetic assembly easily pass through the avoiding position and extend to the second magnetic assembly or the third magnetic assembly. The electromagnetic performance of the anti-shake driving mechanism is improved.

[0027] In an alternative implementation, the fixing member can include a frame and a surrounding wall connected to the outer periphery of the frame, and a bottom plate connected to the end of the surrounding wall away from the frame. The frame, the surrounding wall and the bottom plate form a containing cavity, and the second movable member and the third magnetic assembly are located in the containing cavity. The first magnetic assembly is mounted on the frame, and the lens is arranged through the frame.

[0028] In an alternative implementation, the first movable member can be in the shape of a frame, an L shape or other shapes, and the first movable member has an avoiding position, and the lens is arranged through the avoiding position of the first movable member.

[0029] In an alternative implementation, a dustproof assembly is arranged on the first movable member and / or the fixing member, and the dustproof assembly is used to reduce the entry of external dust into the first movable member and the fixing member through the gap between the first movable member and the fixing member.

[0030] In an alternative implementation, a bending channel is formed between the edge of the first movable member and the edge of the fixing member, and the dustproof assembly includes a dust-catching adhesive arranged on the wall surface of the bending channel.

[0031] In an alternative implementation, an anti-sticking layer can be arranged on the wall surface of the bending channel facing the dust-catching adhesive, so as to prevent the first movable member and the fixing member from being bonded.

[0032] In an alternative implementation, the dustproof assembly includes a flexible member, one end of the flexible member is connected to the edge of the first movable member, and the other end of the flexible member is connected to the edge of the fixing member. The flexible member blocks the external dust.

[0033] In an alternative implementation, a plurality of first supporting portions are arranged between the first movable member and the fixing member, and at least part of the first supporting portions are distributed around the optical axis of the lens. The stability and flatness of the movement of the first movable member relative to the fixing member are improved, and the stability and flatness of the movement of the lens in the XY plane are improved.

[0034] In an alternative implementation, the first supporting portion can be a convex portion or a ball bearing having a smooth contact surface.

[0035] In an alternative implementation, a plurality of first supporting portions are mounted on the first movable member, and the plurality of first supporting portions are arranged on the side of the fixing member facing the first movable member.

[0036] In an alternative implementation, a plurality of first supporting portions are mounted on the fixing member, and the plurality of first supporting portions are arranged on the side of the first movable member facing the fixing member.

[0037] In an optional implementation, the first constraint assembly is further configured to keep the plurality of first support portions clamped between the first movable member and the fixed member. The first movable member and the fixed member are configured to have a tendency to approach each other, thereby improving the stability of the lens on the first movable member.

[0038] In an optional implementation, the first constraint assembly is configured to generate a first pressure on the first movable member towards the fixed member, and the first pressure is greater than the gravity of the lens. This is advantageous for increasing the anti-overturning torque, so that the anti-overturning torque and the overturning torque are balanced, and the lens is less likely to overturn.

[0039] In an optional implementation, the first pressure on the first movable member towards the fixed member generated by the first constraint assembly is greater than 10 times the gravity of the lens. This is effective for increasing the anti-overturning torque when the electronic device is in a vertical state, so that the lens is less likely to overturn.

[0040] In an optional implementation, the first constraint assembly includes a first constraint magnetic member and a first magnetic guide member, one of the first constraint magnetic member and the first magnetic guide member is arranged on the first movable member, and the other is arranged on the fixed member, and the first constraint magnetic member and the first magnetic guide member are magnetically attracted to each other.

[0041] In an optional implementation, when the first constraint assembly includes the first constraint magnetic member and the first magnetic guide member, the projection of the first constraint magnetic member and the projection of the anti-shake driving mechanism are staggered on the optical axis vertical plane of the lens.

[0042] In an optional implementation, the first magnetic assembly includes an anti-shake magnetic member, and the first constraint assembly includes a first magnetic guide member arranged on the first movable member, and the anti-shake magnetic member and the first magnetic guide member are magnetically attracted to each other.

[0043] In an optional implementation, the first magnetic guide member and the first support portion are arranged in one-to-one correspondence or adjacent to each other.

[0044] In an optional implementation, the first constraint assembly includes an elastic member, one end of the elastic member is fixed to the fixed member, and the other end is arranged on the side of the first movable member away from the fixed member.

[0045] In an optional implementation, the stiffness of the elastic member in the optical axis direction of the lens is greater than the stiffness of the elastic member in the optical axis vertical direction of the lens.

[0046] In an optional implementation, the elastic member includes a connecting arm and a meandering arm, the connecting arm extends along the optical axis direction of the lens, one end of the connecting arm is connected to the fixed member, the other end is connected to the meandering arm, and the meandering arm is arranged on the first movable member.

[0047] In an optional implementation, a plurality of elastic members are arranged on the fixing member around the optical axis, and the plurality of elastic members can better press the first movable member towards the fixing member.

[0048] In an optional implementation, the second movable member is fixed with a connecting member away from the fixing member, the connecting member is spaced apart from the second movable member and is fixed with a bottom plate, the bottom plate is fixedly connected with the fixing member, a plurality of second supporting portions are arranged between the connecting member and the bottom plate, and at least part of the second supporting portions are distributed around the optical axis of the lens.

[0049] In an optional implementation, the connecting member can be in a sheet shape, facilitating the connection between the connecting member and the second movable member, and the connecting member occupies a smaller space.

[0050] In an optional implementation, the second supporting portion can be a convex portion or a ball with a smooth contact surface.

[0051] In an optional implementation, the plurality of second supporting portions are arranged on the connecting member, and the plurality of second supporting portions are arranged on a side of the bottom plate facing the connecting member.

[0052] In an optional implementation, the plurality of second supporting portions are arranged on the bottom plate, and the plurality of second supporting portions are arranged on a side of the connecting member facing the bottom plate.

[0053] In an optional implementation, a second constraint assembly is further arranged to keep the plurality of second supporting portions arranged between the connecting member and the bottom plate.

[0054] In an optional implementation, the bottom plate is made of a magnetic conductive material, the second constraint assembly includes a second constraint magnetic member arranged on the second movable member, and the second constraint magnetic member is magnetically attracted to the bottom plate.

[0055] In an optional implementation, the second constraint assembly includes a second constraint magnetic member arranged on the second movable member and a second magnetic conductive member arranged on the bottom plate, and the second constraint magnetic member is magnetically attracted to the second magnetic conductive member.

[0056] In an optional implementation, a first magnetic shielding member is arranged on the second movable member, and the first magnetic shielding member is arranged between the second constraint magnetic member and the anti-shake driving mechanism.

[0057] In an optional implementation, in a vertical plane of the optical axis of the lens, a projection of the second constraint magnetic member and a projection of the anti-shake driving mechanism are staggered.

[0058] In an optional implementation, a suspension assembly is further arranged, the suspension assembly includes a fixed portion, a movable portion and a plurality of elastic arms, the fixed portion has a receiving hole, the movable portion is arranged in the receiving hole, two ends of the plurality of elastic arms are respectively connected to the fixed portion and the movable portion, the fixed portion is fixed to the fixing member, and the second movable member is fixed to the movable portion.

[0059] In an optional implementation, the second movable member is in the shape of a frame, and the second movable member is fixed to the side of the movable part of the suspension assembly facing the fixed part; in the optical axis vertical plane of the lens, the projection of the second movable member covers the projections of the plurality of elastic arms; the image sensor is mounted on the movable part and located at the inner hole of the second movable member. The plurality of elastic arms are arranged on the second movable member, so that the first magnetic assembly on the second movable member and the plurality of elastic arms are oppositely arranged in the optical axis direction. The image sensor is arranged at the inner hole of the second movable member.

[0060] In an optional implementation, the first magnetic assembly is arranged on the side of the second movable member opposite to the plurality of elastic arms.

[0061] In an optional implementation, the fixed part, the movable part, and the elastic arms all have circuit layers, the fixed part and the movable part are electrically connected through the plurality of elastic arms, and the image sensor and the movable part are electrically connected.

[0062] In an optional implementation, the elastic arms are arranged in pairs, and the pairs of elastic arms are symmetrically distributed on opposite corners of the movable part. One or more pairs of elastic arms are arranged on the same corner of the movable part.

[0063] In an optional implementation, the pairs of elastic arms are symmetrically arranged in the elastic coefficients in the X direction and the Y direction.

[0064] In an optional implementation, a filter can be arranged between the lens and the image sensor.

[0065] In an optional implementation, the focusing assembly includes a base, a carrier, and a focusing driving mechanism, the base is fixed to the first movable member, the carrier is movably mounted on the base along the optical axis of the lens; the focusing driving mechanism is arranged between the base and the carrier, and is used to drive the carrier to move along the optical axis of the lens; and the lens is mounted in the inner cavity of the carrier.

[0066] In an optional implementation, the focusing driving mechanism is a focusing voice coil motor. The focusing voice coil motor includes a focusing magnetic member and a focusing coil, one of the focusing magnetic member and the focusing coil is arranged on the base, and the other is arranged on the carrier. The focusing magnetic member and the focusing coil are arranged to face each other, and are used to drive the carrier to move relative to the base along the optical axis of the lens.

[0067] In an optional implementation, the first magnetic assembly includes a plurality of anti-shake magnetic members distributed around the optical axis of the lens; in the optical axis vertical plane of the lens, the projection of the focusing magnetic member is located between the projections of the two adjacent anti-shake magnetic members, and the length direction of the projection of the focusing magnetic member and the length direction of the projection of the anti-shake magnetic member are staggered.

[0068] In an optional implementation, a guide is arranged between the base and the carrier to guide the carrier to move along the optical axis of the lens.

[0069] In an optional implementation, the outer circumferential surface of the carrier has a matching portion, the base has a matching groove and a mounting groove in communication, and the guide is mounted in the mounting groove. The matching portion of the carrier is slidingly mounted in the matching groove, and the matching portion and the guide in the mounting groove are in sliding fit.

[0070] In an optional implementation, the matching portion of the carrier is embedded with a limiting magnetic member, and the guide is made of a magnetic conductive material. The limiting magnetic member and the guide are in magnetic attraction fit, so that the guide is clamped between the matching portion of the carrier and the guide.

[0071] In an optional implementation, the focusing magnetic member is provided with a second magnetic shielding member, and the second magnetic shielding member is located between the focusing magnetic member and the first magnetic assembly.

[0072] In an optional implementation, the second magnetic shielding member includes a first arm and a second arm, the first arm and the second arm are connected and arranged in an L shape, a slot is formed between the first arm and the second arm, the focusing magnetic member is arranged in the slot of the second magnetic shielding member, the first arm extends along the radial direction of the lens, and the second arm extends along the optical axis of the lens. The first arm is fixed to the base, and the second arm is connected to the end of the first arm away from the lens.

[0073] In an optional implementation, the camera module can not include the base, the carrier and the focusing driving mechanism, and the lens is directly arranged on the first movable member.

[0074] In an optional implementation, the first magnetic assembly includes a plurality of anti-shake coils distributed around the optical axis of the lens, the second magnetic assembly includes a plurality of anti-shake magnetic members distributed around the optical axis of the lens, and the third magnetic assembly includes a plurality of anti-shake magnetic members distributed around the optical axis of the lens. The bipolar moving-magnet voice coil motor enables the plurality of anti-shake coils in the first magnetic assembly to be energized, so as to drive the first movable member and the second movable member to move in the XY plane, a larger motion compensation amount can be obtained, and large-angle optical anti-shake can be realized. By multiplexing the plurality of anti-shake coils in the first magnetic assembly, the overall structure has a smaller size in the Z direction.

[0075] In an optional implementation, the multiple anti-shake coils in the first magnetic assembly include a first anti-shake coil and a second anti-shake coil, the multiple anti-shake magnetic pieces in the third magnetic assembly include a third anti-shake magnetic piece and a fourth anti-shake magnetic piece, and the multiple anti-shake magnetic pieces in the second magnetic assembly include a first anti-shake magnetic piece and a second anti-shake magnetic piece; along the optical axis direction of the lens, the first anti-shake magnetic piece, the first anti-shake coil, and the third anti-shake magnetic piece are arranged in sequence; the first anti-shake coil and the first anti-shake magnetic piece are configured to drive the first movable piece to translate in a first direction; the first anti-shake coil and the third anti-shake magnetic piece are configured to drive the second movable piece to translate in the first direction; along the optical axis direction of the lens, the second anti-shake magnetic piece, the second anti-shake coil, and the fourth anti-shake magnetic piece are arranged in sequence; the second anti-shake coil and the second anti-shake magnetic piece are configured to drive the first movable piece to translate in a second direction; the fourth anti-shake magnetic piece and the second anti-shake coil are configured to drive the second movable piece to translate in the second direction; the first direction and the second direction intersect, and the optical axis direction of the lens is perpendicular to the first direction and the second direction. The first anti-shake coil and the second anti-shake coil on the fixed piece serve as a multiplexing part, so that the overall structure occupies a smaller space.

[0076] In a second aspect, the embodiments of the present application provide a camera module, which includes a lens, an image sensor, and an anti-shake structure. The lens is arranged on a first movable piece, and the image sensor is arranged on a second movable piece. The light exit side of the lens and the image sensor are arranged to face each other. The lens and the image sensor are arranged on the anti-shake structure, and the anti-shake structure can realize optical anti-shake of the lens and / or the image sensor.

[0077] In a third aspect, the embodiments of the present application provide an electronic device, which includes a device shell and a camera module. The camera module is arranged on the device shell. BRIEF DESCRIPTION OF DRAWINGS

[0078] FIG. 1 is a structural schematic diagram of a camera module in the related art;

[0079] FIG. 2 is a structural schematic diagram of another camera module in the related art;

[0080] FIG. 3(a) and (b) are structural schematic diagrams of an electronic device provided by the embodiments of the present application at different viewing angles;

[0081] FIG. 4 is a perspective assembly diagram of a camera module provided by the embodiments of the present application;

[0082] FIG. 5 is a perspective exploded diagram of the camera module of FIG. 4;

[0083] FIG. 6(a) to (c) are schematic diagrams of a camera module when there is no shaking, when there is shaking, and when motion compensation is performed, respectively;

[0084] FIG. 7 is a structural schematic diagram of a camera module provided by another embodiment of the present application;

[0085] Fig. 8 is a schematic diagram of the camera module of Fig. 7 in an image sensor and the camera module in motion compensation;

[0086] Fig. 9 is a sectional view of the camera module of Fig. 4 along line A-A;

[0087] Fig. 10 is an exploded view of an anti-shake structure in the camera module of Fig. 5;

[0088] Fig. 11 is an exploded view of the anti-shake structure of Fig. 10 from another perspective;

[0089] Fig. 12 is an assembly diagram of a partial structure of the anti-shake structure of Fig. 11;

[0090] Fig. 13 is an assembly diagram of a partial structure of the anti-shake structure of Fig. 10;

[0091] Fig. 14 is a further assembly diagram of a partial structure of the anti-shake structure of Fig. 13;

[0092] Fig. 15 is a sectional view of the camera module of Fig. 4 along line B-B;

[0093] Fig. 16 is a schematic diagram of a structure of a fixing member in a camera module according to another embodiment of the present application;

[0094] Fig. 17 is an assembly diagram of the fixing member and a first magnetic assembly of Fig. 16;

[0095] Fig. 18 is a schematic diagram of a structure of a camera module having the fixing member of Fig. 16;

[0096] Figs. 19(a) to (j) are schematic diagrams of structures of fixing members in camera modules according to different embodiments of the present application, respectively;

[0097] Fig. 20 is an electromagnetic simulation diagram of a partial structure of the camera module of Fig. 19(g);

[0098] Fig. 21 is an electromagnetic simulation diagram of a partial structure of the camera module of Fig. 19(h);

[0099] Fig. 22 is a schematic diagram of a structure of a camera module according to another embodiment of the present application;

[0100] Figs. 23(a) and (b) are schematic diagrams of a camera module according to another embodiment of the present application without and with shaking, respectively;

[0101] Figs. 24(a) and (b) are a top view and a side view of a camera module according to another embodiment of the present application, respectively;

[0102] Fig. 25 is a schematic diagram of a structure of a camera module according to another embodiment of the present application;

[0103] Fig. 26(a) and (b) are respectively a top view and a side view of a camera module according to another embodiment of the present application;

[0104] Fig. 27 is an exploded view of a focusing assembly in the camera module of Fig. 5;

[0105] Fig. 28 is an assembly view of a partial structure of the focusing assembly of Fig. 27;

[0106] Fig. 29 is a position diagram of a shake-prevention driving mechanism and a focusing driving mechanism in the camera module of Fig. 4;

[0107] Fig. 30 is a structural diagram of a camera module according to another embodiment of the present application;

[0108] Fig. 31 is an exploded view of a shake-prevention driving mechanism in the camera module of Fig. 30. DETAILED DESCRIPTION

[0109] In order to make the technical problems solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application. Although the description of the present application will be introduced in combination with some embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the embodiments in combination with the present application is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict.

[0110] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0111] It should be understood that, in the description of the embodiments of the present application, it is explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachably connected, or can be non-detachably connected, can be directly connected, or indirectly connected through an intermediate medium. The directions or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0112] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0113] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0114] In the description of the present application, the reference to "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0115] Referring to FIG. 1, a camera module 10 in the related art has dual optical image stabilization and auto focus functions. The camera module 10 includes a shape memory alloy (SMA) motor 11, a voice coil motor (VCM) 12, an image sensor 13, and a lens 14. The image sensor 13 and a flexible circuit board 15 are disposed on a reinforcement plate 16, and the image sensor 13 and the flexible circuit board 15 are electrically connected.

[0116] The SMA motor 11 includes a support plate 11a, a support 11c, a plurality of SMA wires 11e, and an insulating member 11f. Two ends of each SMA wire 11e are connected to a movable jaw 11b of the support plate 11a and a fixed jaw 11d of the support 11c, respectively, and the insulating member 11f is disposed between the movable jaw 11b and the fixed jaw 11d. The SMA wire 11e shrinks when energized and elongates when de-energized. The flexible circuit board 15 is fixed to the support plate 11a. The plurality of SMA wires 11e cooperatively drive the image sensor 13 to move in a plane perpendicular to an optical axis 14a, thereby achieving optical image stabilization of the image sensor 13.

[0117] The VCM 12 includes a carrier 12a, a cover 12b, a movable frame 12c, a bracket 12d, a plurality of magnets 12e, a plurality of first coils 12f, and a plurality of second coils 12g. The cover 12b is fixed to the support 11c, the movable frame 12c is mounted to the cover 12b, and the bracket 12d is mounted to the movable frame 12c. The lens 14 is mounted to the carrier 12a, and the carrier 12a is movable relative to the bracket 12d along the optical axis 14a. The carrier 12a is connected to the movable frame 12c, and the carrier 12a is movable relative to the cover 12b in a plane perpendicular to the optical axis 14a along with the movable frame 12c. The cover 12b has the plurality of first coils 12f on a bottom surface thereof, the bracket 12d has the plurality of magnets 12e on an inner circumferential surface thereof, and the plurality of first coils 12f and the plurality of magnets 12e form a moving magnet type VCM, which drives the lens 14 to move in the plane perpendicular to the optical axis 14a, thereby achieving optical image stabilization of the lens 14. The carrier 12a has the plurality of second coils 12g on an outer circumferential surface thereof, and the plurality of second coils 12g and the plurality of magnets 12e form a moving coil type VCM, which drives the lens 14 to move along the optical axis 14a, thereby achieving auto focus (AF).

[0118] The camera module 10 has a large number of components and a complex structure. The two anti-shake motors, the SMA motor 11 and the voice coil motor 12, are directly stacked in the direction of the optical axis 14a. The overall structure has a large size in the direction of the optical axis 14a, and occupies a large space. In a limited volume, the SMA motor 11 has a small output movement distance. When the SMA wire 11e is powered on, it heats up and shrinks. When the SMA wire 11e is powered off, it cools down and lengthens. The temperature changes slowly, causing the length of the SMA wire 11e to change slowly, and the anti-shake frequency to be low (less than 6 Hz). This is not conducive to fast motion compensation of the image sensor 13, and the anti-shake effect is poor.

[0119] Referring to FIG. 2, a camera module 20 in the related art has single-pole optical image stabilization and automatic focusing functions. The camera module 20 includes a first voice coil motor 21, a second voice coil motor 22, an image sensor 23, and a lens 24. The image sensor 23 and a flexible circuit board 25 are both arranged on a reinforcing plate 26, and the image sensor 23 and the flexible circuit board 25 are electrically connected.

[0120] The first voice coil motor 21 includes a support 21a, a support plate 21b, a plurality of first magnets 21c, and a plurality of first coils 21d. The plurality of first magnets 21c are arranged on the support 21a, and the plurality of first coils 21d are arranged on the support plate 21b. The flexible circuit board 25 is fixed on the support plate 21b. The plurality of first coils 21d and the plurality of first magnets 21c form a moving-coil voice coil motor, which can drive the image sensor 23 to move in a vertical plane of the optical axis 24a, thereby realizing optical image stabilization of the image sensor 23.

[0121] The second voice coil motor 22 includes a carrier 22a, a cover 22b, a bracket 22c, a plurality of second magnets 22d, and a plurality of second coils 22e. The cover 22b is fixed on the support 21a, and the bracket 22c is fixed on the support 21a. The lens 24 is mounted on the carrier 22a, and the carrier 22a can move relative to the bracket 22c in the direction of the optical axis 24a. The inner circumferential surface of the bracket 22c is provided with the plurality of second magnets 22d, and the outer circumferential surface of the carrier 22a is provided with the plurality of second coils 22e. The plurality of second coils 22e and the plurality of second magnets 22d form a moving-coil voice coil motor, which can drive the lens 24 to move in the direction of the optical axis 24a, thereby realizing the automatic focusing function.

[0122] The camera module 20 can only realize single-pole optical image stabilization of the image sensor 23. In a limited space, the motion compensation amount is small, and the anti-shake effect is poor in the case of a large shaking angle. By increasing the length of the first magnets 21c and the first coils 21d, the motion compensation amount can be improved, but the camera module 20 will have a large size in the vertical direction of the optical axis 24a.

[0123] Referring to (a) and (b) of FIG. 3, an electronic device 1 provided in an embodiment of the present application includes a device housing 2000 and a camera module 1000, and the camera module 1000 is disposed on the device housing 2000. The device housing 2000 is used to accommodate components of the electronic device 1 and provide protection, reducing the risk of damage to the components due to external influences. The camera module 1000 is used to take pictures to capture still images or videos. The device housing 2000 can be configured with one or more camera modules 1000.

[0124] The electronic device 1 can be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer, an e-book reader, a netbook, a personal digital assistant, an augmented reality (AR) device, a virtual reality (VR) device, a vehicle-mounted device, etc.

[0125] In some embodiments, the electronic device 1 includes a device housing 2000 and a display screen 3000, the device housing 2000 includes a back cover 2100 and a middle frame 2200, and the display screen 3000 and the back cover 2100 are respectively disposed on opposite sides of the middle frame 2200. The display screen 3000 and the middle frame 2200 can be connected by adhesion or the like. The middle frame 2200 and the back cover 2100 can be connected by adhesion, buckling or the like. The middle frame 2200 and the back cover 2100 can also be a one-piece structure.

[0126] As shown in (a) of FIG. 3, the camera module 1000 can be disposed on the middle frame 2200 as a front-facing camera module. As shown in (b) of FIG. 3, the camera module 1000 can be disposed on the back cover 2100 as a rear-facing camera module.

[0127] The electronic device 1 can also include a battery, a mainboard, a receiver, a loudspeaker, a gyroscope, an accelerometer, an ambient light sensor, etc. These components can be disposed on the middle frame 2200. A processor can be disposed on the mainboard, and a driving chip can be disposed on the camera module 1000.

[0128] For the convenience of describing the position and direction of the camera module 1000 and the anti-shake structure 100, the camera module 1000 and the anti-shake structure 100 are defined to have an X direction, a Y direction and a Z direction, and the X direction, the Y direction and the Z direction are perpendicular to each other. The Z direction can be the direction of the optical axis 201 of the lens 200 in the initial state without shaking. The X direction and the Y direction can be two directions on the plane perpendicular to the optical axis 201 of the lens 200, for example, the X direction and the Y direction are the length direction and the width direction of the image sensor 300, respectively. The plane on which the X direction and the Y direction lie is the XY plane, i.e., the plane perpendicular to the optical axis 201 of the lens 200.

[0129] In some embodiments, referring to FIG. 4 and FIG. 5, the camera module 1000 can include a lens 200, an image sensor 300, and an anti-shake structure 100, the light exit side of the lens 200 and the image sensor 300 are arranged opposite to each other. The lens 200 and the image sensor 300 are arranged on the anti-shake structure 100, and the optical anti-shake of the lens 200 and / or the image sensor 300 can be achieved.

[0130] The lens 200 can include one or more optical lenses. When the lens 200 includes multiple optical lenses, the multiple optical lenses are arranged in a stacked manner along the optical axis 201 of the lens 200. By designing the number of optical lenses and the parameters of each lens, a lens with different characteristics such as wide-angle, standard, telephoto, etc. can be obtained.

[0131] The image sensor 300 converts the light image on the photosensitive surface into an electrical signal by using the photoelectric conversion function of the photoelectric device, so as to capture a still image or a video. The image sensor 300 can be a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), or a thin film transistor (TFT), etc.

[0132] In the camera module 1000, the lens 200 images the shooting scene on the photosensitive surface of the image sensor 300, and the image sensor 300 converts the light image of the shooting scene into a corresponding electrical signal.

[0133] Referring to FIG. 6, the lens 200 shown in (a) to (c) of FIG. 6 includes one convex lens and one concave lens. In a scene without shaking, as shown in (a) of FIG. 6, the optical axis 201 of the lens 200 and the central axis of the photosensitive surface of the image sensor 300 can coincide, and the actual imaging area and the ideal imaging area of the actual light path correspond to each other.

[0134] In a scene with shaking, as shown in (b) of FIG. 6, the camera module 1000 tilts in the direction of the arrow, so that the actual light path deviates from the ideal light path of the image sensor 300, and the actual imaging area of the actual light path deviates from the ideal imaging area of the image sensor 300.

[0135] The gyroscope or the accelerometer can detect a shaking signal of the camera module 1000, and a driving chip of the camera module or a processor of the electronic device can calculate a motion compensation amount of the anti-shake structure 100 according to the shaking signal. As shown in (c) of FIG. 6, the arrow direction is the motion direction of the lens 200 and the image sensor 300, and the anti-shake structure 100 performs motion compensation on the image sensor 300 and / or the lens 200 according to the motion compensation amount, so that the actual imaging area of the optical path is moved to the ideal imaging area, thereby improving the optical imaging quality in the shaking condition.

[0136] Referring to FIG. 7, an embodiment of the present application provides an anti-shake structure 100, which includes a fixed part 110, a first movable part 130, a second movable part 120, and an anti-shake driving mechanism 140. The first movable part 130 is used to be connected with the lens 200. The second movable part 120 is used to be connected with the image sensor 300. The fixed part 110 is located between the first movable part 130 and the second movable part 120 along the optical axis 201 direction (Z direction) of the lens 200. The anti-shake driving mechanism 140 includes a first magnetic assembly 141, a second magnetic assembly 143, and a third magnetic assembly 142. The first magnetic assembly 141 is arranged on the fixed part 110. The second magnetic assembly 143 is arranged on the first movable part 130, and the second magnetic assembly 143 and the first magnetic assembly 141 are arranged to face each other, and are used to drive the first movable part 130 to move relative to the fixed part 110 in the optical axis perpendicular plane (XY plane) of the lens 200. The third magnetic assembly 142 is arranged on the second movable part 120, and the third magnetic assembly 142 and the first magnetic assembly 141 are arranged to face each other, and are used to drive the second movable part 120 to move relative to the fixed part 110 in the optical axis perpendicular plane (XY plane) of the lens 200.

[0137] The first magnetic assembly 141 and the second magnetic assembly 143 constitute a voice coil motor for driving the first movable part 130 to move in the XY plane, one of the first magnetic assembly 141 and the second magnetic assembly 143 is a plurality of magnetic members, and the other is a plurality of coils. The first magnetic assembly 141 and the second magnetic assembly 143 cooperate to realize the movement of the first movable part 130 relative to the fixed part 110 in the XY plane, that is, the movement of the lens 200 in the XY plane, and realize the motion compensation of the lens 200.

[0138] The first magnetic assembly 141 and the third magnetic assembly 142 constitute a voice coil motor for driving the second movable part 120 to move in the XY plane, one of the first magnetic assembly 141 and the third magnetic assembly 142 is a plurality of magnetic members, and the other is a plurality of coils. The first magnetic assembly 141 and the third magnetic assembly 142 cooperate to realize the movement of the second movable part 120 relative to the fixed part 110 in the XY plane, that is, the movement of the image sensor 300 in the XY plane, and realize the motion compensation of the image sensor 300.

[0139] For example, in the large angle of shaking scenario shown in FIG. 8, the image sensor 300 is moved leftward along the Y direction by a distance L1 by the second movable component 120, and the lens 200 is moved rightward along the Y direction by a distance L2 by the first movable component 130, so as to improve the motion compensation amount, and to realize optical image stabilization of the lens 200 and the image sensor 300, and to improve the imaging quality of the camera module 1000.

[0140] The two predetermined components are arranged to face each other, and there can be no other components between the two predetermined components, or there can be other components between the two predetermined components. For example, in the embodiment shown in FIG. 9, the first magnetic assembly 141 can be arranged on the side of the fixed component 110 facing the third magnetic assembly 142. At this time, the first magnetic assembly 141 and the third magnetic assembly 142 are arranged to face each other and there are no other components between them, and the first magnetic assembly 141 and the second magnetic assembly 143 are arranged to face each other and there is the fixed component 110 between them.

[0141] The anti-shake structure 100 provided by the embodiment of the present application is arranged between the first movable component 130 and the second movable component 120, the first movable component 130 is connected with the lens 200, and the second movable component 120 is connected with the image sensor 300. The first magnetic assembly 141 on the fixed component 110 and the second magnetic assembly 143 on the first movable component 130 constitute a voice coil motor, which can realize the movement of the first movable component 130 and the lens 200 in the XY plane perpendicular to the optical axis of the lens 200. The first magnetic assembly 141 on the fixed component 110 and the third magnetic assembly 142 on the second movable component 120 constitute a voice coil motor, which can realize the movement of the second movable component 120 and the image sensor 300 in the XY plane perpendicular to the optical axis of the lens 200. The camera module 1000 using the anti-shake structure 100 can improve the motion compensation amount by moving the first movable component 130 and the second movable component 120 in a shaking environment, and can realize optical image stabilization of the image sensor 300 and / or the lens 200, and improve the imaging quality of the camera module 1000. Compared with the camera module shown in FIG. 1, which stacks two anti-shake driving motors in the optical axis direction, the anti-shake structure 100 of the embodiment reuses the first magnetic assembly 141, has fewer components, has a simple structure, has a smaller size in the Z direction of the optical axis 201, and occupies less space. Compared with the related art shown in FIG. 2, which increases the length of the magnet and the coil to improve the motion compensation amount in single-pole optical image stabilization, the anti-shake structure 100 of the embodiment uses dual-pole optical image stabilization of the lens 200 and the image sensor 300, and has a small size in the X direction and the Y direction perpendicular to the optical axis 201, and occupies less space. Compared with the SMA motor shown in FIG. 1, the voice coil motor of the anti-shake structure 100 of the embodiment has a higher anti-shake frequency and a better optical image stabilization effect. After the overall structure size is reduced, a larger size lens 200 and image sensor 300 can be configured to improve the imaging effect.

[0142] There are multiple optional configurations when configuring the first magnetic assembly 141, the second magnetic assembly 143, and the third magnetic assembly 142.

[0143] The first one is a double pole moving coil voice coil motor, the fixed part 110 is provided with magnetic parts, the first movable part 130 and the second movable part 120 are provided with coils, and the two voice coil motors share the magnetic parts on the fixed part 110. This method can make the first movable part 130 move independently on the XY plane to realize optical image stabilization of the lens 200; the second movable part 120 moves independently on the XY plane to realize optical image stabilization of the image sensor 300; and the first movable part 130 and the second movable part 120 can move simultaneously on the XY plane to realize optical image stabilization of the lens 200 and the image sensor 300.

[0144] The second one is a double pole moving magnetic voice coil motor, the fixed part 110 is provided with coils, the first movable part 130 and the second movable part 120 are provided with magnetic parts, and the two voice coil motors share the coils on the fixed part 110. This method can make the first movable part 130 and the second movable part 120 move simultaneously on the XY plane to realize optical image stabilization of the lens 200 and the image sensor 300.

[0145] The following describes a scheme in which the first magnetic assembly 141, the second magnetic assembly 143, and the third magnetic assembly 142 are configured as a double pole moving coil voice coil motor.

[0146] Referring to FIGS. 9 to 11, the first magnetic assembly 141 includes multiple anti-shake magnetic parts (141a, 141b) distributed around the optical axis 201 of the lens 200 (around the Z direction), the second magnetic assembly 143 includes multiple anti-shake coils (143a, 143b) distributed around the optical axis 201 of the lens 200, and the third magnetic assembly 142 includes multiple anti-shake coils (142a, 142b) distributed around the optical axis 201 of the lens 200.

[0147] The multiple anti-shake magnetic parts distributed around the optical axis 201 of the lens 200 can be two or more anti-shake magnetic parts distributed around the outer periphery of the lens 200. The multiple anti-shake coils distributed around the optical axis 201 of the lens 200 can be two or more anti-shake coils distributed around the outer periphery of the lens 200. In combination with FIGS. 12 to 14, the multiple anti-shake magnetic parts in the first magnetic assembly 141 are provided on the fixed part 110, the multiple anti-shake coils in the second magnetic assembly 143 are provided on the first movable part 130, and the multiple anti-shake coils in the third magnetic assembly 142 are provided on the second movable part 120.

[0148] The multiple anti-shake magnetic pieces (141a, 141b) in the first magnetic assembly 141 and the multiple anti-shake coils (143a, 143b) in the second magnetic assembly 143 constitute a moving-coil voice coil motor. The anti-shake coils (143a, 143b) that are energized generate Lorentz force in the magnetic field of the anti-shake magnetic pieces (141a, 141b), which can drive the first movable piece 130 and the lens 200 to move in the XY plane, thereby achieving optical anti-shake of the lens 200.

[0149] The multiple anti-shake magnetic pieces (141a, 141b) in the first magnetic assembly 141 and the multiple anti-shake coils (142a, 142b) in the third magnetic assembly 142 constitute another moving-coil voice coil motor. The anti-shake coils (142a, 142b) that are energized generate Lorentz force in the magnetic field of the anti-shake magnetic pieces (141a, 141b), which can drive the second movable piece 120 and the image sensor 300 to move in the XY plane, thereby achieving optical anti-shake of the image sensor 300.

[0150] The bipolar moving-coil voice coil motor energizes the anti-shake coils (143a, 143b) in the second magnetic assembly 143 and the anti-shake coils (142a, 142b) in the third magnetic assembly 142, which can drive the first movable piece 130 and the second movable piece 120 to move in the XY plane, thereby achieving large-angle optical anti-shake and improving optical imaging quality. By multiplexing the multiple anti-shake magnetic pieces (141a, 141b) in the first magnetic assembly 141, the overall structure has a smaller size in the Z direction. Under a predetermined motion compensation amount, the lengths of the anti-shake magnetic pieces in the first magnetic assembly 141, the lengths of the anti-shake coils in the second magnetic assembly 143, and the lengths of the anti-shake coils in the third magnetic assembly 142 can all be small, so that the overall structure has smaller sizes in the X and Y directions and occupies less space.

[0151] To realize the first movable element 130 and the second movable element 120 can be translated in XY plane, in some embodiments, referring to FIG. 10, FIG. 12, FIG. 13, the plurality of anti-shake magnetic elements in the first magnetic assembly 141 includes a first anti-shake magnetic element 141a and a second anti-shake magnetic element 141b, the plurality of anti-shake coils in the second magnetic assembly 143 includes a first anti-shake coil 143a and a second anti-shake coil 143b, the plurality of anti-shake coils in the third magnetic assembly 142 includes a third anti-shake coil 142a and a fourth anti-shake coil 142b; combined with FIG. 9, along the optical axis 201 direction (Z direction) of the lens 200, the first anti-shake coil 143a, the first anti-shake magnetic element 141a and the third anti-shake coil 142a are arranged in turn; the first anti-shake coil 143a and the first anti-shake magnetic element 141a are used to drive the first movable element 130 to translate in the first direction (such as Y direction); the third anti-shake coil 142a and the first anti-shake magnetic element 141a are used to drive the second movable element 120 to translate in the first direction (such as Y direction); combined with FIG. 15, along the optical axis 201 direction of the lens 200, the second anti-shake coil 143b, the second anti-shake magnetic element 141b and the fourth anti-shake coil 142b are arranged in turn; the second anti-shake coil 143b and the second anti-shake magnetic element 141b are used to drive the first movable element 130 to translate in the second direction (such as X direction); the fourth anti-shake coil 142b and the second anti-shake magnetic element 141b are used to drive the second movable element 120 to translate in the second direction (such as X direction); the first direction and the second direction intersect, and the optical axis 201 direction of the lens 200 is perpendicular to the first direction and the second direction.

[0152] Referring to FIG. 15, the energized first anti-shake coil 143a generates a first direction Lorentz force in the magnetic field of the first anti-shake magnetic element 141a, which can drive the first movable element 130 and the lens 200 to translate in the first direction. Referring to FIG. 9, the energized second anti-shake coil 143b generates a second direction Lorentz force in the magnetic field of the second anti-shake magnetic element 141b, which can drive the first movable element 130 and the lens 200 to translate in the second direction. By changing the current of the first anti-shake coil 143a and the second anti-shake coil 143b, the Lorentz force acting on the first movable element 130 in the first direction and the second direction can be changed respectively, so as to form a resultant force of a predetermined size and direction in XY plane, realizing the translation of the first movable element 130 and the lens 200 in XY plane, i.e. the motion compensation of the lens 200.

[0153] Similarly, the energized third anti-shake coil 142a and the first anti-shake magnetic element 141a cooperate, and / or the energized fourth anti-shake coil 142b and the second anti-shake magnetic element 141b cooperate, which can realize the translation of the second movable element 120 and the image sensor 300 in XY plane, i.e. the motion compensation of the image sensor 300.

[0154] The first anti-shake magnetic member 141a and the second anti-shake magnetic member 141b on the fixing member 110 serve as a multiplexing part. Referring to FIG. 9, the first anti-shake magnetic member 141a is located between the first anti-shake coil 143a and the third anti-shake coil 142a. Referring to FIG. 15, the second anti-shake magnetic member 141b is located between the second anti-shake coil 143b and the fourth anti-shake coil 142b. In this way, the overall structure occupies a smaller space.

[0155] The first direction and the second direction can be perpendicular to each other. The first direction and the second direction can be the Y direction and the X direction, respectively. The first direction and the second direction can also intersect without being perpendicular to each other.

[0156] When the first anti-shake magnetic member 141a, the first anti-shake coil 143a, and the third anti-shake coil 142a are arranged, referring to FIG. 9, the first anti-shake magnetic member 141a can have two opposite polarity directions. The arrow on the first anti-shake magnetic member 141a in FIG. 9 indicates the polarity direction. The polarity direction of the first anti-shake magnetic member 141a is perpendicular to the winding plane of the first anti-shake coil 143a (the winding plane of the third anti-shake coil 142a). The winding plane of the first anti-shake coil 143a (the winding plane of the third anti-shake coil 142a) is perpendicular to the direction of the optical axis 201 of the lens 200. Referring to FIG. 10, the first anti-shake coil 143a (the third anti-shake coil 142a) can be a racetrack coil. The length direction of the first anti-shake coil 143a (the length direction of the third anti-shake coil 142a) extends along the second direction (for example, the X direction). Two sections of the first anti-shake coil 143a (the third anti-shake coil 142a) can be arranged to correspond to the two polarity directions of the first anti-shake magnetic member 141a, respectively. The current directions in the two sections are opposite. The side of the first anti-shake magnetic member 141a facing the first anti-shake coil 143a (the third anti-shake coil 142a) includes a north pole (N) and a south pole (S). The side of the first anti-shake magnetic member 141a facing away from the first anti-shake coil 143a (the third anti-shake coil 142a) includes a south pole (S) and a north pole (N) correspondingly.

[0157] The first anti-shake magnetic member 141a has various optional implementation manners. For example, as shown in FIG. 9, the first anti-shake magnetic member 141a is a double magnet, which includes two magnets. The two magnets are arranged along the first direction (for example, the Y direction) and have opposite polarity directions. Alternatively, the first anti-shake magnetic member 141a is a Halbach magnet array, which includes at least three magnets. In the three adjacent magnets, the polarization directions of the two magnets at the ends are opposite and perpendicular to the arrangement direction of the three magnets. The polarization direction of the middle magnet is directed from one magnet to the other magnet. Alternatively, the first anti-shake magnetic member 141a is a single magnet, which includes two parts with opposite polarity directions. The magnet can be made by using a double-pole magnetization process.

[0158] In the embodiment shown in FIG. 9, the first anti-shake coil 143a is energized according to the arrow shown in FIG. 9, under the magnetic field of the first anti-shake magnetic element 141a, the two sections of the first anti-shake coil 143a will be subjected to a Lorentz force along the Y direction to the right, causing the first movable element 130 to move along the Y direction to the right. The third anti-shake coil 142a is energized according to the arrow shown in FIG. 9, under the magnetic field of the first anti-shake magnetic element 141a, the two sections of the third anti-shake coil 142a will be subjected to a Lorentz force along the Y direction to the left, causing the second movable element 120 to move along the Y direction to the left.

[0159] In the setting of the second anti-shake magnetic element 141b, the second anti-shake coil 143b and the fourth anti-shake coil 142b, referring to FIG. 15, the second anti-shake magnetic element 141b can have two opposite polarity directions, the arrow on the second anti-shake magnetic element 141b in FIG. 15 represents the polarity direction. The polarity direction of the second anti-shake magnetic element 141b is perpendicular to the winding plane of the second anti-shake coil 143b (the winding plane of the fourth anti-shake coil 142b). The winding plane of the second anti-shake coil 143b (the winding plane of the fourth anti-shake coil 142b) is perpendicular to the direction of the optical axis 201 of the lens 200. Referring to FIG. 10, the second anti-shake coil 143b (the fourth anti-shake coil 142b) can be a racetrack coil, the length direction of the second anti-shake coil 143b (the length direction of the fourth anti-shake coil 142b) extends along the first direction (such as the Y direction). The two sections of the second anti-shake coil 143b (the fourth anti-shake coil 142b) can be respectively arranged corresponding to the two polarity directions of the second anti-shake magnetic element 141b, and the current directions in the two sections are opposite. The side of the second anti-shake magnetic element 141b facing the second anti-shake coil 143b (the fourth anti-shake coil 142b) includes a north pole (N) and a south pole (S), and the side of the second anti-shake magnetic element 141b facing away from the second anti-shake coil 143b (the fourth anti-shake coil 142b) correspondingly includes a south pole (S) and a north pole (N).

[0160] The second anti-shake magnetic element 141b has various optional implementation manners, and can be a double magnet, a Halbach magnet array or a single magnet. The specific structure can refer to that of the first anti-shake magnetic element 141a, which will not be described here.

[0161] In the embodiment shown in FIG. 15, the second anti-shake coil 143b is energized according to the arrow shown in FIG. 15, under the magnetic field of the second anti-shake magnetic element 141b, the two sections of the first anti-shake coil 143a will be subjected to a Lorentz force along the X direction to the right, causing the first movable element 130 to move along the X direction to the right. The second anti-shake magnetic element 141b is energized according to the arrow shown in FIG. 15, under the magnetic field of the second anti-shake magnetic element 141b, the two sections of the fourth anti-shake coil 142b will be subjected to a Lorentz force along the X direction to the left, causing the second movable element 120 to move along the X direction to the left.

[0162] In the number of anti-shake magnetic pieces and anti-shake coils, referring to FIG. 10, the number of the first anti-shake magnetic piece 141a and the second anti-shake magnetic piece 141b can both be one or more. The first anti-shake coil 143a (the third anti-shake coil 142a) and the first anti-shake magnetic piece 141a can be one-to-one corresponding. Alternatively, one first anti-shake coil 143a (third anti-shake coil 142a) and a plurality of adjacent first anti-shake magnetic pieces 141a are corresponding. The second anti-shake coil 143b (the fourth anti-shake coil 142b) and the second anti-shake magnetic piece 141b can be one-to-one corresponding. Alternatively, one second anti-shake coil 143b (fourth anti-shake coil 142b) and a plurality of adjacent second anti-shake magnetic pieces 141b are corresponding.

[0163] For example, the fixed piece 110 is roughly L-shaped, and the fixed piece 110 includes two connection segments 1111 extending in different directions and connected. One of the connection segments 1111 is provided with the first anti-shake magnetic piece 141a, and the other connection segment 1111 is provided with the second anti-shake magnetic piece 141b. The first movable piece 130 is provided with the first anti-shake coil 143a and the second anti-shake coil 143b corresponding to the first anti-shake magnetic piece 141a and the second anti-shake magnetic piece 141b, respectively. The second movable piece 120 is provided with the third anti-shake coil 142a and the fourth anti-shake coil 142b corresponding to the first anti-shake magnetic piece 141a and the second anti-shake magnetic piece 141b, respectively. This way can reduce the size of the anti-shake structure 100 in the X direction and the Y direction, so that the whole machine occupies less space. The anti-shake structure 100 has dual anti-shake functions of the lens 200 and the image sensor 300, and can improve the optical anti-shake effect with low power consumption.

[0164] For example, the fixed piece 110 is roughly L-shaped, and the fixed piece 110 includes two connection segments 1111 extending in different directions and connected. One of the connection segments 1111 is provided with the first anti-shake magnetic piece 141a, and the other connection segment 1111 is provided with the second anti-shake magnetic piece 141b. The first movable piece 130 is provided with the first anti-shake coil 143a and the second anti-shake coil 143b corresponding to the first anti-shake magnetic piece 141a and the second anti-shake magnetic piece 141b, respectively. The second movable piece 120 is provided with the third anti-shake coil 142a and the fourth anti-shake coil 142b corresponding to the first anti-shake magnetic piece 141a and the second anti-shake magnetic piece 141b, respectively. This way can reduce the size of the anti-shake structure 100 in the X direction and the Y direction, so that the whole machine occupies less space. The anti-shake structure 100 has dual anti-shake functions of the lens 200 and the image sensor 300, and can improve the optical anti-shake effect with low power consumption.

[0165] Exemplarily, as shown in FIG. 12, the fixing member 110 is in a frame shape, and the fixing member 110 includes four connection segments 1111 connected in sequence. One of the connection segments 1111 is provided with two first anti-shake magnetic members 141a, and the length direction of the two first anti-shake magnetic members 141a is the same as the arrangement direction of the two first anti-shake magnetic members 141a. One or two first anti-shake coils 143a can be arranged on the first movable member 130 corresponding to the first anti-shake magnetic members 141a. One or two third anti-shake coils 142a can be arranged on the second movable member 120 corresponding to the first anti-shake magnetic members 141a.

[0166] Exemplarily, the fixing member 110 is in a frame shape, and the fixing member 110 includes four connection segments 1111 connected in sequence. One of the connection segments 1111 is provided with one first anti-shake magnetic member 141a, and the other connection segment 1111 is provided with one second anti-shake magnetic member 141b. The first movable member 130 is respectively provided with a first anti-shake coil 143a and a second anti-shake coil 143b corresponding to the first anti-shake magnetic member 141a and the second anti-shake magnetic member 141b. The second movable member 120 is respectively provided with a third anti-shake coil 142a and a fourth anti-shake coil 142b corresponding to the first anti-shake magnetic member 141a and the second anti-shake magnetic member 141b. In this way, the optical anti-shake of the lens 200 and / or the image sensor 300 can be achieved.

[0167] When the first anti-shake magnetic member 141a (the second anti-shake magnetic member 141b) is arranged, the first anti-shake magnetic member 141a (the second anti-shake magnetic member 141b) can be arranged on one side of the fixing member 110 in the Z direction, or the first anti-shake magnetic member 141a (the second anti-shake magnetic member 141b) can be arranged on opposite sides of the fixing member 110 in the Z direction.

[0168] Referring to FIG. 9, when the first anti-shake magnetic member 141a is arranged on one side of the fixing member 110 in the Z direction, the first anti-shake magnetic member 141a and the corresponding first anti-shake coil 143a can drive the first movable member 130 to move, and the first anti-shake magnetic member 141a and the corresponding third anti-shake coil 142a can drive the second movable member 120 to move. Referring to FIG. 15, when the second anti-shake magnetic member 141b is arranged on one side of the fixing member 110 in the Z direction, the case is similar, which will not be described herein.

[0169] When the first anti-shake magnetic member 141a is arranged on opposite sides of the fixing member 110 in the Z direction, the first anti-shake coil 143a and the first anti-shake magnetic member 141a arranged in sequence can drive the first movable member 130 to move, and the third anti-shake coil 142a and the first anti-shake magnetic member 141a arranged in sequence can drive the second movable member 120 to move. When the second anti-shake magnetic member 141b is arranged on opposite sides of the fixing member 110 in the Z direction, the case is similar, which will not be described herein.

[0170] In order to detect the position of the first movable element 130 on the XY plane, in some embodiments, referring to FIG. 9, FIG. 12, and FIG. 15, a first position sensor 145 is arranged on the first movable element 130, and the first position sensor 145 is arranged opposite to the first magnetic assembly 141.

[0171] Each of the plurality of anti-shake magnetic elements in the first magnetic assembly 141 can form a predetermined magnetic field. The first position sensor 145 can be a Hall sensor, a tunnel magnetoresistance sensor, etc. The first position sensor 145 is arranged opposite to the anti-shake magnetic element in the first magnetic assembly 141, and the first position sensor 145 can detect the magnetic field strength of the anti-shake magnetic element. In the process of driving the first movable element 130 to move by cooperation of the first magnetic assembly 141 and the second magnetic assembly 143, the anti-shake coil in the second magnetic assembly 143 moves relative to the anti-shake magnetic element in the first magnetic assembly 141, and the first position sensor 145 can detect the change of the magnetic field strength of the anti-shake magnetic element, and then the relative displacement amount of the first movable element 130 can be obtained.

[0172] The first position sensor 145 is electrically connected to the driving chip of the camera module 1000. The signal detected by the first position sensor 145 is fed back to the driving chip, and the driving chip calculates to determine whether the first movable element 130 reaches the target position. When the first movable element 130 does not reach the target position, the driving chip energizes the plurality of anti-shake coils in the second magnetic assembly 143 to drive the first movable element 130 to translate by a predetermined displacement until the first movable element 130 reaches the target position, thereby realizing the position closed-loop control of the first movable element 130.

[0173] For example, a first position sensor 145 is arranged at the center of a first anti-shake coil 143a towards a first anti-shake magnetic element 141a, which can realize the position detection of the first movable element 130 in the Y direction. A first position sensor 145 is arranged at the center of a second anti-shake coil 143b towards a second anti-shake magnetic element 141b, which can realize the position detection of the first movable element 130 in the X direction.

[0174] In order to detect the position of the second movable element 120 on the XY plane, in some embodiments, referring to FIG. 9, FIG. 14, and FIG. 15, a second position sensor 144 is arranged on the second movable element 120, and the second position sensor 144 is arranged opposite to the first magnetic assembly 141.

[0175] Each of the plurality of anti-shake magnetic elements in the first magnetic assembly 141 can form a predetermined magnetic field. The second position sensor 144 can be a Hall sensor, a tunnel magnetoresistance sensor, etc. The second position sensor 144 can detect the change of the magnetic field strength of the anti-shake magnetic element, and then the relative displacement amount of the second movable element 120 can be obtained.

[0176] The second position sensor 144 is electrically connected to the driving chip of the camera module 1000. According to the signal detected by the second position sensor 144, the driving chip energizes the multiple anti-shake coils in the third magnetic assembly 142 to drive the second movable element 120 to translate, thereby realizing position closed-loop control of the second movable element 120.

[0177] For example, a second position sensor 144 is arranged at the center of a third anti-shake coil 142a towards the first anti-shake magnetic element 141a, which can realize position detection of the second movable element 120 in the Y direction. A second position sensor 144 is arranged at the center of a fourth anti-shake coil 142b towards the second anti-shake magnetic element 141b, which can realize position detection of the second movable element 120 in the X direction.

[0178] In combination with FIGS. 9 and 15, the anti-shake structure 100 with the dual-voice coil motor can separately perform motion compensation of the image sensor 300, or separately perform motion compensation of the lens 200, or simultaneously perform motion compensation of the lens 200 and the image sensor 300.

[0179] When the motion compensation of the lens 200 is separately performed, the anti-shake coils (the first anti-shake coil 143a and the second anti-shake coil 143b) on the first movable element 130 are energized, the anti-shake coils on the first movable element 130 cooperate with the anti-shake magnetic elements on the fixed element 110, and the generated Lorentz force drives the first movable element 130 to move on the XY plane, thereby realizing optical anti-shake of the lens 200. The anti-shake coils (the third anti-shake coil 142a and the fourth anti-shake coil 142b) on the second movable element 120 are not energized, so that the second movable element 120 and the image sensor 300 do not move on the XY plane.

[0180] When the motion compensation of the image sensor 300 is separately performed, the anti-shake coils (the third anti-shake coil 142a and the fourth anti-shake coil 142b) on the second movable element 120 are energized, the anti-shake coils on the second movable element 120 cooperate with the anti-shake magnetic elements on the fixed element 110, and the generated Lorentz force drives the second movable element 120 to move on the XY plane, thereby realizing optical anti-shake of the image sensor 300. The anti-shake coils (the first anti-shake coil 143a and the second anti-shake coil 143b) on the first movable element 130 are not energized, so that the first movable element 130 and the lens 200 do not move on the XY plane.

[0181] When the motion compensation of the lens 200 and the image sensor 300 is performed simultaneously, the anti-shake coils (the third anti-shake coil 142a and the fourth anti-shake coil 142b) on the second movable element 120 are energized, the anti-shake coils (the first anti-shake coil 143a and the second anti-shake coil 143b) on the first movable element 130 are energized, the first movable element 130 and the second movable element 120 are moved in the XY plane, the lens 200 and the image sensor 300 are moved in the XY plane, and the optical anti-shake of the lens 200 and the image sensor 300 is achieved.

[0182] In order to achieve the driving control of the lens 200 and the image sensor 300, in some embodiments, referring to FIG. 15, a shake detection element (not shown) and a driving chip (not shown) are further included; the shake detection element is used to detect a shake signal of the anti-shake structure 100; and the driving chip is used to energize the second magnetic assembly 143 and / or the third magnetic assembly 142 according to the shake signal, so that the first movable element 130 and / or the second movable element 120 are moved in the optical axis vertical plane (the XY plane) of the lens 200.

[0183] The shake detection element can be a gyroscope or an acceleration, etc., which can detect the shake signal of the anti-shake structure 100 or the camera module 1000. The shake signal can be a shake amplitude, a shake angular velocity, a shake angular acceleration, a shake frequency, etc. The shake detection element can be arranged at any position of the electronic device 1, such as the mainboard of the electronic device 1. The driving chip can receive the shake signal of the shake detection element, and calculate and process according to the shake signal to output the driving signal of the second magnetic assembly 143 (anti-shake coil) and the third magnetic assembly 142 (anti-shake coil). The driving chip can be arranged on the camera module 1000 or other positions.

[0184] According to the shake signal collected by the shake detection element, the driving chip can call a known computer program to calculate the motion compensation amount of the lens 200 and the image sensor 300, energize the second magnetic assembly 143 (anti-shake coil) and / or the third magnetic assembly 142 (anti-shake coil) according to the motion compensation amount, and make the image sensor 300 on the first movable element 130 and / or the lens 200 on the second movable element 120 move in the optical axis vertical plane (the XY plane), such as making the lens 200 or the image sensor 300 move for compensation, or making the lens 200 and the image sensor 300 move for compensation, to achieve optical anti-shake.

[0185] In some embodiments, when the first condition is met, the driving chip can energize the second magnetic assembly 143 and the third magnetic assembly 142 to move the first movable element 130 and the second movable element 120 in the optical axis vertical plane (the XY plane) of the lens 200. Both the first movable element 130 and the second movable element 120 are moved to achieve optical anti-shake of both the image sensor 300 and the lens 200.

[0186] When the second condition is met, the driving chip can energize the second magnetic assembly 143 to move the first movable element 130 in the optical axis vertical plane (XY plane) of the lens 200, or energize the third magnetic assembly 142 to move the second movable element 120 in the optical axis vertical plane (XY plane) of the lens 200. The first movable element 130 or the second movable element 120 moves alone to realize the optical image stabilization of the image sensor 300 or the lens 200 alone. The driving chip can be set to energize the second magnetic assembly 143 or the third magnetic assembly 142 to meet the second condition.

[0187] For example, the jitter signal includes a jitter amplitude and a jitter frequency. The first condition can be that the jitter amplitude is greater than or equal to an amplitude threshold value, and / or the jitter frequency is greater than or equal to a frequency threshold value. The second condition can be that the jitter amplitude is less than the amplitude threshold value, or the jitter frequency is less than the frequency threshold value. The unit of the jitter amplitude is degree (°). When the user holds the electronic device 1 to take a picture while walking, the jitter amplitude of the electronic device 1 is usually 0° to 3.5°. The amplitude threshold value can be set to 3°, 3.5°, etc. The unit of the jitter frequency is hertz (Hz). The frequency threshold value can be set to 2 Hz, 2.5 Hz, 6 Hz, etc.

[0188] By limiting the threshold values of the jitter amplitude and the jitter frequency, when at least one of the jitter amplitude and the jitter frequency reaches a predetermined threshold value, it can be understood that the camera module 1000 or the electronic device 1 is in a large jitter angle scene (e.g., the user is running, moving quickly, etc.), and the driving chip outputs a driving signal to the second magnetic assembly 143 (anti-shake coil) and the third magnetic assembly 142 (anti-shake coil), so that the lens 200 on the first movable element 130 and the image sensor 300 on the second movable element 120 move compensatorily to realize double-pole optical image stabilization.

[0189] When the jitter amplitude is less than the amplitude threshold value, and the jitter frequency is less than the frequency threshold value, one of the conditions is met, it can be understood that the camera module 1000 or the electronic device 1 is in a small jitter angle scene (e.g., the user is walking, etc.), and the driving chip can be set to energize the second magnetic assembly 143 to move the first movable element 130 in the optical axis vertical plane (XY plane) of the lens 200, or the driving chip can be set to energize the third magnetic assembly 142 to move the second movable element 120 in the optical axis vertical plane (XY plane) of the lens 200. Only the optical image stabilization of one of the lens 200 or the image sensor 300 is turned on to meet the small jitter angle stabilization requirement, and the power consumption is low.

[0190] In some embodiments, the dithering signal comprises a first dithering signal part at a first frequency band and a second dithering signal part at a second frequency band, the first frequency band and the second frequency band are disjoint; the driving chip is configured to energize the second magnetic assembly 143 according to the first dithering signal part, so as to drive the first movable element 130 to move in the XY plane of the optical axis of the lens 200; the driving chip is further configured to energize the third magnetic assembly 142 according to the second dithering signal part, so as to drive the second movable element 120 to move in the XY plane of the optical axis of the lens 200.

[0191] The dithering signal is a multi-frequency or wideband composite signal. All dithering signals are divided into two frequency bands at a certain frequency (such as 2 Hz, 2.5 Hz, 6 Hz, etc.). The first frequency band and the second frequency band are disjoint. For example, the first frequency band is a low frequency band and the second frequency band is a high frequency band, or the first frequency band is a high frequency band and the second frequency band is a low frequency band.

[0192] The driving chip can have a filter, which divides the dithering signal into a first dithering signal part and a second dithering signal part of different frequency bands. The driving chip calls a known computer program, calculates the movement compensation amount of the lens 200 according to the first dithering signal part, calculates the movement compensation amount of the image sensor 300 according to the second dithering signal part, energizes the second magnetic assembly 143 (anti-shake coil) and the third magnetic assembly 142 (anti-shake coil) according to the respective movement compensation amounts, and drives the lens 200 on the first movable element 130 and the image sensor 300 on the second movable element 120 to move compensatively, thereby achieving dual-pole optical anti-shake.

[0193] For example, the lens 200 and the image sensor 300 move at different frequencies, such as the lens 200 moving at a low frequency and the image sensor 300 moving at a high frequency, or the lens 200 moving at a high frequency and the image sensor 300 moving at a low frequency, thereby achieving optical anti-shake of the lens 200 and the image sensor 300.

[0194] In the case that the electronic device 1 is in a shooting mode or the like, the optical anti-shake of the lens 200 or the optical anti-shake of the image sensor 300 can be started alone. By adjusting the position of the image sensor 300 or the lens 200 in the XY plane, small-stroke dithering compensation is performed, so that the imaging area of the actual optical path is moved to the ideal imaging area, thereby achieving good optical anti-shake effect in a small dithering angle scenario.

[0195] In the case that the electronic device 1 is in a video mode, a professional motion video mode or the like, by simultaneously adjusting the positions of the lens 200 and the image sensor 300 in the XY plane, large-stroke dithering compensation is performed, so that the imaging area of the actual optical path is moved to the ideal imaging area, thereby achieving good optical anti-shake effect in a large dithering angle scenario.

[0196] In some embodiments, a light sensor (not shown in the figure) for detecting ambient light intensity and a driving chip (not shown in the figure) for determining the exposure time of the camera module 1000 according to the ambient light intensity are further included, and the driving chip is further configured to energize the second magnetic assembly 143 and / or the third magnetic assembly 142 according to the exposure time, so that the first movable element 130 and / or the second movable element 120 moves in the optical axis vertical plane (XY plane) of the lens 200.

[0197] The light sensor can be arranged on the electronic device 1 or the camera module 1000. The exposure time is the time for which the shutter is to be opened in order to project light onto the light-sensitive surface of the image sensor 300. The exposure time can be determined according to the ambient light intensity, the imaging algorithm, and the performance of the image sensor 300, which is a conventional technical means. The longer the exposure time, the more light is admitted, which is suitable for poor light conditions. The shorter the exposure time, the less light is admitted, which is suitable for good light conditions.

[0198] In a dark light scene, such as night shooting, the camera module 1000 usually increases the exposure time to obtain more light. At this time, if the electronic device 1 is slightly shaken, the image sensor 300 will receive more light superimposed at the same position, which is easy to cause the image sensor 300 to blur.

[0199] When the light sensor detects the ambient light intensity, the driving chip determines the exposure time of the camera module 1000. When the exposure time is greater than or equal to the exposure threshold, it can be understood that the electronic device 1 is in a dark light scene, and the dual-optical anti-shake of the lens 200 and the image sensor 300 can be started. The exposure threshold can be set as needed. The driving chip calls a known computer program to calculate the motion compensation amount of the lens 200 and the image sensor 300, and energizes the second magnetic assembly 143 (anti-shake coil) and the third magnetic assembly 142 (anti-shake coil) according to the motion compensation amount, so that the image sensor 300 of the first movable element 130 and the lens 200 of the second movable element 120 move in the optical axis vertical plane (XY plane) of the lens 200.

[0200] When the exposure time is less than the exposure threshold, the driving chip can be configured to energize the second magnetic assembly 143 to make the first movable element 130 move in the optical axis vertical plane (XY plane) of the lens, or the driving chip can be configured to energize the third magnetic assembly 142 to make the second movable element 120 move in the optical axis vertical plane (XY plane) of the lens. Only one of the lens 200 or the image sensor 300 is turned on for optical anti-shake.

[0201] In order to improve the connection strength of the fixed part 110 and the first magnetic assembly 141, and the electromagnetic driving force of the anti-shake driving mechanism 140, in some embodiments, referring to FIGS. 16-18, the fixed part 110 is made of a magnetic conductive material, the first magnetic assembly 141 is arranged on the side of the fixed part 110 facing the second movable part 120, the fixed part 110 has at least one opening 1113 corresponding to the first magnetic assembly 141, and the first magnetic assembly 141 covers the opening 1113.

[0202] The fixed part 110 is made of a magnetic conductive material, which can be silicon steel, stainless steel, or other materials that can be magnetically attracted to the magnet. The first magnetic assembly 141 is arranged on the side of the fixed part 110 facing the second movable part 120, and the first magnetic assembly 141 and the fixed part 110 can be fixed by adhesion or other methods. There needs to be a certain connection area between the first magnetic assembly 141 and the fixed part 110 to ensure reliable connection. Adhesion between the first magnetic assembly 141 and the fixed part 110 can ensure reliable connection between the two, avoiding the situation where the first magnetic assembly is easily detached when falling if the first magnetic assembly and the fixed part are connected by buckles, and avoiding the situation where the first magnetic assembly is demagnetized at high temperature if the first magnetic assembly and the fixed part are connected by welding.

[0203] Compared with the fixed part 110 made of non-magnetic conductive material, the fixed part 110 made of magnetic conductive material can improve the magnetic conductive ability of the first magnetic assembly 141 to the third magnetic assembly 142, so that more magnetic lines of the first magnetic assembly 141 are guided to the third magnetic assembly 142, and the third magnetic assembly 142 generates a larger electromagnetic driving force to drive the second movable part 120 and the image sensor 300 to move. The fixed part 110 made of magnetic conductive material can also shield the electromagnetic signals on both sides of the fixed part 110, reducing the influence of electromagnetic interference.

[0204] The fixed part 110 made of magnetic conductive material sets an opening 1113 corresponding to the position of the first magnetic assembly 141, so that the magnetic lines of the first magnetic assembly 141 are exposed to the second magnetic assembly 143, better guiding the magnetic lines of the first magnetic assembly 141 to the second magnetic assembly 143, improving the magnetic flux density of the first magnetic assembly 141 to the second magnetic assembly 143, so that the second magnetic assembly 143 generates a larger electromagnetic driving force to drive the first movable part and the lens 200 to move. The first magnetic assembly 141 is arranged on the side of the fixed part 110 facing the second movable part 120, and the fixed part 110 protects the first magnetic assembly 141.

[0205] In the case where the first magnetic assembly 141 includes an anti-shake magnetic part, the anti-shake magnetic part in the first magnetic assembly 141 and the fixed part 110 can be fixed by adhesion or other methods. For example, the edge of one side surface of the anti-shake magnetic part is adhesively connected to the fixed part 110. In the case where the first magnetic assembly 141 includes an anti-shake coil, the anti-shake coil in the first magnetic assembly 141 and the fixed part 110 can be fixed by adhesion or other methods.

[0206] The fixed part 110 is made of a magnetic conductive material, and the opening 1113 is arranged at the position corresponding to the first magnetic assembly 141. The electromagnetic driving force of the second magnetic assembly 143 and the third magnetic assembly 142 can be maximized, both of which are superior to the case where the fixed part 110 is made of a non-magnetic conductive material and the fixed part 110 is not provided with the opening 1113. In addition, the connection strength between the first magnetic assembly 141 and the fixed part 110 is high, and the reliability is high. This scheme can solve the problem of insufficient electromagnetic driving force for the dual-pole anti-shake of the lens 200 and the image sensor 300, and increasing the electromagnetic driving force may cause the contradiction of the decrease of the connection strength between the first magnetic assembly 141 and the fixed part 110.

[0207] In some embodiments, referring to FIGS. 16 to 18, in the optical axis vertical plane (XY plane) of the lens 200, the ratio of the projection area of the connection region between the first magnetic assembly 141 and the fixed part 110 to the projection area of the first magnetic assembly 141 ranges from 1 / 3 to 1 / 2.

[0208] The thickness of the first magnetic assembly 141 is small, and the first magnetic assembly 141 and the fixed part 110 can be fixed by bonding or the like. The projection area of the connection region between the first magnetic assembly 141 and the fixed part 110 and the projection area of the first magnetic assembly 141 are set in the above range, which can improve the connection strength between the first magnetic assembly 141 and the fixed part 110, reduce the disconnection of the two, and improve the reliability. In addition, the magnetic lines of the first magnetic assembly 141 are more guided to the second magnetic assembly 143 through the opening 1113, so that the second magnetic assembly 143 generates a larger electromagnetic driving force to drive the first movable part and the lens 200 to move.

[0209] When the shape of the opening 1113 is set, referring to (a) to (j) in FIG. 19, the shape of the opening 1113 can include at least one of a rounded rectangle, a circle, an ellipse, and a polygon. The specific shape is set as needed. The polygon can be a triangle, a quadrilateral, etc. The quadrilateral can be a rectangle, a trapezoid, etc.

[0210] When the opening 1113 is arranged, at least part of the opening 1113 is arranged in an array. The area formed between adjacent openings 1113 is connected with the first magnetic assembly 141, which improves the connection area of the fixed part 110 and the first magnetic assembly 141 and improves the connection strength of the fixed part 110 and the first magnetic assembly 141. The magnetic lines of the first magnetic assembly 141 are exposed to the third magnetic assembly 142 through the arrayed openings 1113, and the magnetic lines are guided to the second magnetic assembly 143, so that the second magnetic assembly 143 generates a larger electromagnetic driving force to drive the first movable part and the lens 200 to move.

[0211] For example, referring to FIG. 16, the fixing member 110 is in a frame shape, and the fixing member 110 includes four connection segments 1111 connected in sequence. Each connection segment 1111 is provided with a plurality of rectangular openings 1113. The length direction of each opening 1113 is parallel to the length direction of the connection segment 1111. The plurality of openings 1113 on each connection segment 1111 are arranged along the length direction of the connection segment 1111.

[0212] For example, referring to (a) of FIG. 19, the connection segment 1111 of the fixing member 110 is provided with a plurality of rectangular openings 1113. The length direction of each opening 1113 is parallel to the width direction of the connection segment 1111. The plurality of openings 1113 on the connection segment 1111 are arranged along the length direction of the connection segment 1111. The distance between two adjacent openings 1113 can be equal or unequal.

[0213] For example, referring to (b) of FIG. 19, the connection segment 1111 of the fixing member 110 is provided with a plurality of long strip-shaped openings 1113. The length direction of each opening 1113 is parallel to the length direction of the connection segment 1111. The arrangement direction of the plurality of openings 1113 on the connection segment 1111 is parallel to the width direction of the connection segment 1111.

[0214] For example, referring to (c) of FIG. 19, the connection segment 1111 of the fixing member 110 is provided with a plurality of round rectangular openings 1113. The plurality of openings 1113 are arranged along the length direction of the connection segment 1111. The length direction of each opening 1113 forms a predetermined angle with the length direction of the connection segment 1111, such as 30° to 60°.

[0215] For example, referring to (d) of FIG. 19, on the connection segment 1111 of the fixing member 110, some openings 1113 are round rectangular, and some openings 1113 are trapezoidal.

[0216] For example, referring to (e) of FIG. 19, the connection segment 1111 of the fixing member 110 is provided with one rectangular opening 1113. The length direction of the opening 1113 is parallel to the length direction of the connection segment 1111.

[0217] It can be understood that the above-mentioned fixing member 110 in a frame shape can be provided in an L shape or other shapes.

[0218] For example, referring to (f) of FIG. 19, the fixing member 110 is in an L shape, and the fixing member 110 includes two connection segments 1111 connected in sequence and extending in different directions. The two connection segments 1111 are provided with a plurality of openings 1113. In the case that the first magnetic assembly 141 is the first magnetic assembly 141, one of the two connection segments 1111 is provided with the first anti-shake magnetic member 141a, and the other connection segment 1111 is provided with the second anti-shake magnetic member 141b.

[0219] The greater the connection area between the fixing member 110 and the anti-shake magnetic member (141a, 141b), the more reliable the connection between the two. If the connection area between the fixing member 110 and the anti-shake magnetic member (141a, 141b) is set too much, it will be detrimental to the exposure of the magnetic field lines of the anti-shake magnetic member (141a, 141b) to the second magnetic assembly 143.

[0220] In order to further improve the connection strength of the fixing member 110 and the first magnetic assembly 141, as well as the electromagnetic driving force of the anti-shake driving mechanism 140, in some embodiments, the anti-shake magnetic member (141a, 141b) in the first magnetic assembly 141 cooperates with the anti-shake coil (143a, 143b) in the second magnetic assembly 143 to drive the first movable member 130 to move relative to the fixing member 110. Referring to (g) to (j) in FIG. 19, the anti-shake magnetic member (141a, 141b) in the first magnetic assembly 141 has two polarity portions 141c, the polarity directions of the two polarity portions 141c are opposite and both are parallel to the optical axis direction (Z direction) of the lens. The fixing member 110 has at least one opening 1113 corresponding to each polarity portion 141c, and the area between the adjacent openings 1113 on the fixing member 110 is bonded to the first magnetic assembly 141.

[0221] Wherein, the polarity directions of the two polarity portions 141c of the anti-shake magnetic member (141a, 141b) are opposite, for example, as shown in (g) of FIG. 19, the two polarity portions 141c in the anti-shake magnetic member 141a on the right side, the right polarity portion 141c is N-pole, and the left polarity portion 141c is S-pole, the polarity directions of the two are opposite. In addition, the polarities of the left and right two polarity portions 141c can be interchanged. The polarity directions of the two polarity portions 141c in the anti-shake magnetic member at other positions are also opposite.

[0222] In combination with FIGS. 20 and 21, the arrows in the figures represent the magnetic field strength and direction at a certain position, and a plurality of arrows extending along a predetermined route can be understood as a magnetic force line. In the anti-shake magnetic member (141a, 141b) of the first magnetic assembly 141, the two polarity portions 141c form magnetic force lines, a part of the magnetic force lines will come out from one polarity portion 141c, pass through the second magnetic assembly 143, then pass through the other polarity portion 141c and the third magnetic assembly 142, and finally return to the former polarity portion 141c. Another part of the magnetic force lines passes through one polarity portion 141c and the magnetically conductive fixing member 110 to form a closed loop.

[0223] In combination with FIG. 20 and FIG. 21, the openings 1113 of the fixing member 110 can be arranged in regions with larger magnetic field strength component through the XY plane (winding plane of the anti-shake coil), such as the C1 region corresponding to the middle region of each polarity part 141c. This allows more magnetic lines generated by the anti-shake magnetic part (141a, 141b) to be exposed to the second magnetic assembly 143, so that more magnetic lines pass through the fixing member 110 and are guided to the second magnetic assembly 143 to generate a larger Lorentz force on the second magnetic assembly 143 to drive the first movable member 130 to move.

[0224] The regions of the fixing member 110 with smaller magnetic field strength component through the XY plane can be used as the bonding region with the first magnetic assembly 141, such as the C2 region corresponding to the position between the two polarity parts 141c. The regions between the adjacent openings 1113 of the fixing member 110 are bonded with the first magnetic assembly 141, which improves the connection area between the anti-shake magnetic part (141a, 141b) and the fixing member 110, and makes the connection between them reliable. The side edge of the first magnetic assembly 141 facing the fixing member 110 can be bonded with the fixing member 110 or not.

[0225] There are various arrangements when arranging the openings 1113.

[0226] For example, referring to (g) in FIG. 19, FIG. 20, the connecting section 1111 of the fixing member 110 has two rectangular openings 1113, and the length direction of the openings 1113 is parallel to the length direction of the connecting section 1111. The openings 1113 are located in the C1 region of the fixing member 110. The position between the two polarity parts 141c is bonded with the C2 region of the fixing member 110.

[0227] For example, referring to (h) in FIG. 19, FIG. 21, the connecting section 1111 of the fixing member 110 has a plurality of openings 1113 arranged in an array. The shape of the openings 1113 can be circular. This improves the distribution of the magnetic lines of the first magnetic assembly 141, and part of the magnetic lines of the first magnetic assembly 141 are deflected by the fixing member 110 to increase the effective magnetic field strength on the second magnetic assembly 143.

[0228] For example, referring to (i) in FIG. 19, the connecting section 1111 of the fixing member 110 has a plurality of openings 1113 arranged in an array. The shape of the openings 1113 can be L-shaped.

[0229] For example, referring to (j) in FIG. 19, the connecting section 1111 of the fixing member 110 has a plurality of openings 1113 arranged in an array. Each end of the connecting section 1111 is provided with an opening 1113a. The area of the opening 1113a can be larger than the area of the opening 1113. Both the opening 1113 and the opening 1113a can be rectangular.

[0230] In some embodiments, referring to FIGS. 9-11, the fixed member 110 can be made of a non-magnetic conductive material. The non-magnetic conductive material can be non-magnetic stainless steel, aluminum, plastic, or the like. The first magnetic assembly 141 in the anti-shake driving mechanism 140 is arranged on the fixed member 110. In the case where the first magnetic assembly 141 is arranged on the side of the fixed member 110 facing the second movable member 120, the magnetic force lines of the first magnetic assembly 141 can pass through the fixed member 110 and extend to the second magnetic assembly 143.

[0231] In some embodiments, the fixed member 110 is made of a magnetic conductive material, the first magnetic assembly 141 is arranged on the side of the fixed member 110 facing the first movable member 130, the fixed member 110 has at least one opening 1113 corresponding to the first magnetic assembly 141, and the first magnetic assembly 141 covers the opening 1113. The magnetic force lines of the first magnetic assembly 141 can pass through the fixed member 110 and extend to the third magnetic assembly 142. The first magnetic assembly 141 and the fixed member 110 are bonded and fixed, so that the connection between the first magnetic assembly 141 and the fixed member 110 is reliable. The above scheme can improve the electromagnetic performance of the anti-shake driving mechanism 140 and enhance the electromagnetic driving capability.

[0232] In some embodiments, referring to FIGS. 9-11, the fixed member 110 has a reserved position, and the first magnetic assembly 141 is distributed in the area outside the reserved position. The reserved position can be an inner hole 1112a or a notch. The magnetic force lines of the first magnetic assembly 141 can easily pass through the reserved position and extend to the second magnetic assembly 143 or the third magnetic assembly 142. The electromagnetic performance of the anti-shake driving mechanism 140 can be improved, and the electromagnetic driving capability can be enhanced.

[0233] In some embodiments, referring to FIGS. 9-11, the fixed member 110 can include a frame portion 111 and a surrounding wall 112 connected to the outer periphery of the frame portion 111; the end of the surrounding wall 112 away from the frame portion 111 is connected with a bottom plate 113, the frame portion 111, the surrounding wall 112 and the bottom plate 113 surround a containing cavity 114, the second movable member 120 and the third magnetic assembly 142 are located in the containing cavity 114; the first magnetic assembly 141 is installed on the frame portion 111; and the lens 200 is arranged through the frame portion 111.

[0234] The fixed member 110 with the frame portion 111 and the surrounding wall 112 in combination with the bottom plate 113 can surround the containing cavity 114, so as to protect the second movable member 120, the first magnetic assembly 141 and other structures, and facilitate the installation of the anti-shake structure 100 or the camera module 1000 at the predetermined position of the electronic device 1. The lens 200 is arranged through the frame portion 111, and the light exit side of the lens 200 and the light sensing surface of the image sensor 300 are arranged close to each other. The frame portion 111 is substantially in the shape of a rectangular frame or other shapes.

[0235] In the setting of the first movable element 130, the first movable element 130 can be in a frame shape or an L shape or other shapes, and the first movable element 130 has an avoiding position 131, and the lens 200 is arranged in the avoiding position 131 of the first movable element 130. The avoiding position 131 can be a hole or a notch. The first movable element 130 facilitates the assembly of the lens 200, and the light exit side of the lens 200 and the light sensing surface of the image sensor 300 are arranged close to each other.

[0236] In some embodiments, referring to FIG. 22, a dustproof assembly 130a is further included, and the dustproof assembly 130a is arranged on the first movable element 130 and / or the fixed element 110, and is used to reduce the entry of external dust into the first movable element 130 and the fixed element 110 through the gap between the first movable element 130 and the fixed element 110.

[0237] The dustproof assembly 130a reduces the entry of external dust into the first movable element 130 and the fixed element 110 to some extent, reduces the dust entering the lens and the image sensor, improves the reliability of the anti-shake structure 100 and the camera module 1000, and improves the optical imaging quality.

[0238] There are various optional implementation manners in the setting of the dustproof assembly 130a, and two implementation manners of the dustproof assembly 130a are exemplarily given below.

[0239] The first implementation manner of the dustproof assembly 130a: referring to FIG. 22, a bending channel 134 is formed between the edge of the first movable element 130 and the edge of the fixed element 110, and the dustproof assembly 130a includes a dust catching adhesive 130a1 arranged on the wall surface of the bending channel 134.

[0240] The bending channel 134 can increase the path length from the outside to the inside of the first movable element 130 and the fixed element 110. During the movement of external dust in the bending channel 134 along the airflow, the dust can collide and adhere to the dust catching adhesive 130a1, thereby reducing the entry of external dust into the first movable element 130 and the fixed element 110 through the gap between the first movable element 130 and the fixed element 110.

[0241] A release layer 130a2 can be arranged on the wall surface of the bending channel 134 facing the dust catching adhesive 130a1, so as to avoid the adhesion of the first movable element 130 and the fixed element 110.

[0242] Exemplarily, the fixed element 110 can include a frame part 111 and a surrounding wall 112 connected to the outer periphery of the frame part 111. The first movable element 130 can include a plate part 132 and a cylindrical part 133 connected to the outer periphery of the plate part 132. The frame part 111 and the plate part 132 are arranged to face each other, and the cylindrical part 133 is sleeved outside the surrounding wall 112. The bending channel 134 is formed between the cylindrical part 133 and the surrounding wall 112 and between the plate part 132 and the surrounding wall 112.

[0243] The side of the surrounding wall 112 facing the cylindrical portion 133 and / or the side of the plate-shaped portion 132 facing the frame portion 111 can be provided with a dust catching adhesive 130a1 to achieve the attachment and capture of dust.

[0244] In the case where the dust catching adhesive 130a1 is provided on the side of the surrounding wall 112 facing the cylindrical portion 133, the side of the cylindrical portion 133 facing the surrounding wall 112 can be provided with an anti-adhesion layer 130a2 (such as release paper) to avoid the adhesion of the cylindrical portion 133 and the surrounding wall 112.

[0245] In the case where the dust catching adhesive 130a1 is provided on the side of the plate-shaped portion 132 facing the frame portion 111, the side of the surrounding wall 112 facing the plate-shaped portion 132 can be provided with an anti-adhesion layer 130a2 (such as release paper) to avoid the adhesion of the plate-shaped portion 132 and the frame portion 111.

[0246] The second implementation mode of the dustproof assembly 130a: referring to (a) and (b) in FIG. 23, the dustproof assembly 130a includes a flexible piece 130a3, one end of the flexible piece 130a3 is connected to the edge of the first movable piece 130, and the other end is connected to the edge of the fixed piece 110.

[0247] The flexible piece 130a3 can move with the first movable piece 130. The dust is blocked outside by the flexible piece 130a3, which better avoids the external dust entering the first movable piece 130 and the fixed piece 110 along the gap between the first movable piece 130 and the fixed piece 110. The flexible piece 130a3 can be a rubber film or the like.

[0248] In order to improve the stability of the movement of the lens 200, in some embodiments, referring to FIG. 7, a plurality of first support portions 170 are arranged between the first movable piece 130 and the fixed piece 110, and at least part of the first support portions 170 are distributed around the optical axis 201 (i.e., around the Z direction) of the lens 200.

[0249] During the movement of the first movable piece 130 relative to the fixed piece 110, the plurality of first support portions 170 are located between the first movable piece 130 and the fixed piece 110, forming a plurality of point-plane contact positions, which improves the stability and flatness of the movement of the first movable piece 130 relative to the fixed piece 110, thereby improving the stability and flatness of the movement of the lens 200 in the XY plane.

[0250] The first support portion 170 can be a convex portion or a ball with a smooth contact surface, and a point-plane contact cooperation can be formed between the first support portion 170 and the fixed piece 110 (or the first movable piece 130), and the friction between the first support portion 170 and the fixed piece 110 (or the first movable piece 130) is small during the movement, thereby reducing the driving power consumption.

[0251] Exemplarily, three first supporting parts 170 are arranged between the first movable part 130 and the fixed part 110, and the three first supporting parts 170 form three point-plane contact positions distributed around the lens 200, so that the first movable part 130 can stably move relative to the fixed part 110 and the shaking during the movement of the first movable part 130 is reduced.

[0252] There are various optional implementation manners when the first supporting part 170 is arranged. Two implementation manners are exemplarily given below.

[0253] The first implementation manner of the first supporting part 170 is that: referring to FIG. 7, a plurality of first supporting parts 170 are arranged on the first movable part 130, and the plurality of first supporting parts 170 are arranged on the side of the fixed part 110 facing the first movable part 130. The first supporting part 170 is arranged on the first movable part 130, and a plurality of point-plane contact positions are formed between the plurality of first supporting parts 170 and the fixed part 110, so that the stability of the movement of the first movable part 130 relative to the fixed part 110 is improved.

[0254] Exemplarily, referring to FIG. 7, the first supporting part 170 is a protruding part integrally formed on the first movable part 130. Alternatively, referring to FIG. 9, FIG. 11 and FIG. 12, the first supporting part 170 is a protruding part assembled on the first movable part 130 by means of bonding, clamping or the like. Alternatively, the first supporting part 170 is a ball arranged on the first movable part 130.

[0255] The second implementation manner of the first supporting part 170 is that: a plurality of first supporting parts 170 are arranged on the fixed part 110, and the plurality of first supporting parts 170 are arranged on the side of the first movable part 130 facing the fixed part 110. The first supporting part 170 is arranged on the fixed part 110, and a plurality of point-plane contact positions are formed between the plurality of first supporting parts 170 and the first movable part 130, so that the stability of the movement of the first movable part 130 relative to the fixed part 110 is improved.

[0256] Exemplarily, the first supporting part 170 is a protruding part integrally formed on the fixed part 110. Alternatively, the first supporting part 170 is a protruding part assembled on the fixed part 110 by means of bonding, clamping or the like. Alternatively, the first supporting part 170 is a ball arranged on the fixed part 110.

[0257] In order to make the first movable part 130 and the fixed part 110 have a tendency of approaching each other, in some embodiments, a first constraint assembly 180 is further included for keeping the plurality of first supporting parts 170 arranged between the first movable part 130 and the fixed part 110.

[0258] By setting the first constraint assembly 180, the first movable element 130 has a tendency to approach the fixed element 110, and the plurality of first support portions 170 are kept clamped between the first movable element 130 and the fixed element 110, so that the first movable element 130 can move smoothly relative to the fixed element 110, and the movement stability of the lens 200 on the first movable element 130 is improved.

[0259] When the electronic device 1 is in the vertical state, referring to (a) and (b) in FIG. 24, the lens 200 and the first movable element 130 generate a toppling moment M1, which makes the lens 200 have a tendency to topple. The toppling moment M1 is the product of the gravity G of the lens 200 and the first movable element 130 and the force arm D1. In order to prevent the lens 200 from toppling when the electronic device 1 is in the vertical state, in some embodiments, the first constraint assembly 180 can generate a first pressure F on the first movable element 130 towards the fixed element 110, and the first pressure F is greater than the gravity G of the lens 200.

[0260] By the first constraint assembly 180, the first pressure F of the first movable element 130 acting on the fixed element 110 is greater than the gravity G of the lens 200, and the first movable element 130 and the lens 200 are effectively pressed towards the fixed element 110. When the electronic device 1 is in the vertical state (i.e., the light receiving surface of the image sensor 300 and the direction of gravity are close to parallel), this scheme is advantageous to increase the anti-toppling moment M2, so that the anti-toppling moment M2 and the toppling moment M1 are balanced, the lens 200 is not easy to topple, small-angle jitter is allowed, the optical jitter caused by the lens 200 is reduced, and the imaging quality of the camera module 1000 is improved. The anti-toppling moment M2 is the product of the first pressure F and the force arm D2.

[0261] For example, the first pressure F of the first movable element 130 towards the fixed element 110 generated by the first constraint assembly 180 is set to be more than 10 times the gravity of the lens 200, which can effectively increase the anti-toppling moment M2 when the electronic device 1 is in the vertical state, so that the lens 200 is not easy to topple.

[0262] When the first constraint assembly 180 is set, there are various optional implementation manners.

[0263] The first implementation manner of the first constraint assembly 180 is that, referring to FIGS. 9 and 10, the first constraint assembly 180 includes a first constraint magnetic element 181 and a first magnetic guide element 182, one of the first constraint magnetic element 181 and the first magnetic guide element 182 is arranged on the first movable element 130, and the other is arranged on the fixed element 110, and the first constraint magnetic element 181 and the first magnetic guide element 182 are magnetically attracted and matched.

[0264] The first constraint magnetic member 181 can be a magnet. The first magnetic guide member 182 can be made of a material capable of being magnetically attracted to the magnet, such as silicon steel or stainless steel. The first constraint magnetic member 181 and the first magnetic guide member 182 are magnetically attracted to each other, so that the first movable member 130 is kept in abutment against the fixed member 110.

[0265] For example, the first movable member 130 can be embedded with a plurality of first constraint magnetic members 181, and the plurality of first constraint magnetic members 181 and the plurality of first support portions 170 are arranged in one-to-one correspondence. The fixed member 110 can be embedded or attached with a plurality of first magnetic guide members 182, and the plurality of first constraint magnetic members 181 and the plurality of first magnetic guide members 182 are magnetically attracted to each other, so that the plurality of first support portions 170 are kept sandwiched between the first movable member 130 and the fixed member 110. In addition, the first constraint magnetic member 181 and the first magnetic guide member 182 can be interchanged.

[0266] In the case where the first constraint assembly 180 includes the first constraint magnetic member 181 and the first magnetic guide member 182, the projection of the first constraint magnetic member 181 and the projection of the anti-shake driving mechanism 140 are offset in the optical axis vertical plane (XY plane) of the lens 200. The two projections can be offset without intersecting each other. This reduces the magnetic interference between the first constraint magnetic member 181 and the anti-shake driving mechanism 140, and improves the reliability of the cooperation between the first magnetic assembly 141 and the second magnetic assembly 143.

[0267] The second implementation of the first constraint assembly 180 is that, as shown in (a) and (b) of FIG. 24, the first magnetic assembly 141 includes anti-shake magnetic members (such as the first anti-shake magnetic member 141a and the second anti-shake magnetic member 141b), and the first constraint assembly 180 includes the first magnetic guide member 182 arranged on the first movable member 130, and the anti-shake magnetic members and the first magnetic guide member 182 are magnetically attracted to each other.

[0268] The anti-shake magnetic members in the first magnetic assembly 141 can be magnets. The first magnetic guide member 182 can be made of a material capable of being magnetically attracted to the magnet, such as silicon steel or stainless steel. The anti-shake magnetic members and the first magnetic guide member 182 are magnetically attracted to each other, so that the first movable member 130 is kept in abutment against the fixed member 110. This scheme is simple in structure.

[0269] For example, the first magnetic assembly 141 can include a plurality of anti-shake magnetic members, and the first movable member 130 can be embedded or attached with a plurality of first magnetic guide members 182. The plurality of first constraint magnetic members 181 and the plurality of first magnetic guide members 182 are magnetically attracted to each other, so that the plurality of first support portions 170 are kept sandwiched between the first movable member 130 and the fixed member 110.

[0270] For the above two implementation manners of the first constraint assembly 180, in some embodiments, referring to Figs. 7, 9, and (b) of Fig. 24, the first magnetic conductive member 182 and the first support portion 170 are arranged opposite to or adjacent to each other. The magnetic force between the first magnetic conductive member 182 and the first constraint magnetic member 181 (or the anti-shake magnetic member of the first magnetic assembly 141) acts on the corresponding first support portion 170 in the optical axis direction, so that the first movable member 130 is pressed against the fixed member 110 well, and the lens 200 is less likely to overturn.

[0271] The third implementation manner of the first constraint assembly 180 is that, referring to Fig. 25, the first constraint assembly 180 includes an elastic member 183, one end of the elastic member 183 is fixed to the fixed member 110, and the other end abuts against the side of the first movable member 130 away from the fixed member 110.

[0272] The first movable member 130 is kept abutting against the fixed member 110 by the elastic member 183. The elastic member 183 can be a spring leaf, which is easy to install on the fixed member 110 and can provide an elastic force to the first movable member 130 to keep the first movable member 130 abutting against the fixed member 110 in the optical axis 201 direction of the lens 200.

[0273] When setting the rigidity of the elastic member 183, the rigidity of the elastic member 183 in the optical axis 201 direction (Z direction) of the lens 200 is set to be greater than the rigidity of the elastic member 183 in the direction perpendicular to the optical axis 201 direction (X direction and Y direction) of the lens 200, referring to (a) and (b) of Fig. 26. In the XY plane of the movement of the first movable member 130, the rigidity of the elastic member 183 in the X direction and the Y direction is set to be small, so that the first movable member 130 does not have a large movement reaction force during movement, and the driving energy consumption is reduced. In the optical axis direction (Z direction), the Z direction rigidity of the elastic member 183 is set to be large, and when the lens 200 has an overturning tendency, the elastic member 183 presses the first movable member 130 back to the original position through the Z direction elastic force, and the movement stability of the first movable member 130 is improved.

[0274] When setting the structure of the elastic member 183, referring to (a) and (b) of Fig. 26, the elastic member 183 includes a connecting arm 1831 and a meandering arm 1832. The connecting arm 1831 extends in the optical axis direction (Z direction) of the lens 200, one end of the connecting arm 1831 is connected to the fixed member 110, and the other end is connected to the meandering arm 1832, and the meandering arm 1832 abuts against the first movable member 130. The elastic member 183 is easy to form and assemble. The connecting arm 1831 can be in the form of a sheet or a strip, and the connecting arm 1831 can provide a large rigidity in the Z direction. The meandering arm 1832 can be in the form of S or W, and the meandering arm 1832 can provide a small rigidity in the X direction and the Y direction.

[0275] Exemplarily, the fixing member 110 is provided with a plurality of elastic members 183 around the optical axis 201, and the plurality of elastic members 183 can better press the first movable member 130 towards the fixing member 110.

[0276] In order to improve the stability of the movement of the image sensor 300, in some embodiments, referring to FIGS. 9 to 12, the second movable member 120 is fixed with a connecting member 120a away from the fixing member 110, the connecting member 120a is spaced away from the second movable member 120 and provided with a bottom plate 113 fixedly connected with the fixing member 110, and a plurality of second support portions 150 are clamped between the connecting member 120a and the bottom plate 113, and at least part of the second support portions 150 are distributed around the optical axis 201 (around the Z direction) of the lens 200.

[0277] In the process of the movement of the second movable member 120 relative to the fixing member 110 or the bottom plate 113, the plurality of second support portions 150 are located between the connecting member 120a and the bottom plate 113, forming a plurality of point-plane contact positions, improving the stability and flatness of the movement of the connecting member 120a (the second movable member 120) relative to the bottom plate 113 (the fixing member 110), and thus improving the stability and flatness of the movement of the image sensor 300 in the XY plane.

[0278] The connecting member 120a can be in a sheet shape, facilitating the connection of the connecting member 120a and the second movable member 120, and occupying a smaller space.

[0279] The second support portion 150 can be a convex portion or a ball with a smooth contact surface, and the second support portion 150 and the bottom plate 113 (or the connecting member 120a) can form a point-plane contact cooperation, and the friction between the second support portion 150 and the bottom plate 113 (or the connecting member 120a) is small in the movement process, reducing the driving power consumption.

[0280] Exemplarily, three second support portions 150 are clamped between the connecting member 120a and the bottom plate 113, and the three second support portions 150 form three point-plane contact positions distributed around the image sensor 300, so that the second movable member 120 can stably move relative to the fixing member 110, and the shaking of the second movable member 120 in the movement process is reduced.

[0281] When the second support portion 150 is arranged, there are a plurality of optional implementation manners. Two implementation manners are exemplarily given below.

[0282] The first implementation of the second support part 150 is that, as shown in FIG. 9, the plurality of second support parts 150 are installed on the connecting member 120a, and the plurality of second support parts 150 are arranged on the side of the connecting member 120a facing the bottom plate 113. By arranging the second support part 150 on the connecting member 120a, a plurality of point-surface contact positions are formed between the plurality of second support parts 150 and the bottom plate 113, thereby improving the stability of the movement of the connecting member 120a relative to the bottom plate 113.

[0283] For example, the second support part 150 is a protruding part integrally formed on the connecting member 120a. Alternatively, the second support part 150 is a protruding part assembled on the connecting member 120a by means of bonding, clamping or the like. Alternatively, the second support part 150 is a ball installed on the connecting member 120a.

[0284] The second implementation of the second support part 150 is that, as shown in FIG. 9, the plurality of second support parts 150 are installed on the connecting member 120a, and the plurality of second support parts 150 are arranged on the side of the connecting member 120a facing the bottom plate 113. By arranging the second support part 150 on the connecting member 120a, a plurality of point-surface contact positions are formed between the plurality of second support parts 150 and the bottom plate 113, thereby improving the stability of the movement of the connecting member 120a relative to the bottom plate 113.

[0285] For example, the second support part 150 is a protruding part integrally formed on the connecting member 120a. Alternatively, the second support part 150 is a protruding part assembled on the connecting member 120a by means of bonding, clamping or the like. Alternatively, the second support part 150 is a ball installed on the connecting member 120a.

[0286] In order to make the connecting member 120a and the bottom plate 113 have a tendency to approach each other, in some embodiments, as shown in FIG. 9 and FIG. 11, a second constraint assembly 160 is further included for keeping the plurality of second support parts 150 clamped between the connecting member 120a and the bottom plate 113.

[0287] By arranging the second constraint assembly 160, the connecting member 120a and the bottom plate 113 have a tendency to approach each other, and the plurality of second support parts 150 are kept clamped between the connecting member 120a and the bottom plate 113. Therefore, the connecting member 120a can move stably relative to the bottom plate 113, the situation that the connecting member 120a is separated from the bottom plate 113 is reduced, and the stability of the movement of the image sensor 300 on the second movable member 120 is improved.

[0288] There are various optional implementations when the second constraint assembly 160 is arranged. The first implementation of the second constraint assembly 160 is that, as shown in FIG. 7 and FIG. 9, the material of the bottom plate 113 is a magnetic conductive material, and the second constraint assembly 160 includes a second constraint magnetic member 161 arranged on the second movable member 120, and the second constraint magnetic member 161 and the bottom plate 113 are magnetically attracted and matched.

[0289] The second constraint magnetic member 161 can be a magnet. The magnetic conductive material can be silicon steel, stainless steel, or other material that can be magnetically attracted to the magnet. The second constraint magnetic member 161 on the second movable member 120 is magnetically attracted to the bottom plate 113 made of the magnetic conductive material, so that the connecting member 120a is kept against the bottom plate 113.

[0290] For example, a plurality of second constraint magnetic members 161 are embedded on the second movable member 120, and the plurality of second constraint magnetic members 161 and the plurality of second support portions 150 are arranged in one-to-one correspondence, so that the plurality of second support portions 150 are kept sandwiched between the connecting member 120a and the bottom plate 113, and the situation that the connecting member 120a is separated from the bottom plate 113 is reduced during the movement of the connecting member 120a relative to the bottom plate 113.

[0291] The second constraint assembly 160 can be implemented in a second way. Referring to FIG. 25, the second constraint assembly 160 includes a second constraint magnetic member 161 provided on the second movable member 120 and a second magnetic conductive member 162 provided on the bottom plate 113, and the second constraint magnetic member 161 and the second magnetic conductive member 162 are magnetically attracted to each other.

[0292] The second constraint magnetic member 161 can be a magnet. The second magnetic conductive member 162 can be made of silicon steel, stainless steel, or other material that can be magnetically attracted to the magnet. The second magnetic conductive member 162 on the bottom plate 113 is magnetically attracted to the second magnetic conductive member 162, so that the connecting member 120a is kept against the bottom plate 113. The second magnetic conductive member 162 can be in the form of a sheet and embedded on the bottom plate 113.

[0293] In order to reduce the magnetic interference of the second constraint magnetic member 161 on the anti-shake driving mechanism 140, in some embodiments, referring to FIG. 25, a first magnetic shielding member 163 is provided on the second movable member 120, and the first magnetic shielding member 163 is located between the second constraint magnetic member 161 and the anti-shake driving mechanism 140.

[0294] The first magnetic shielding member 163 can be made of silicon steel, stainless steel, or other magnetic conductive material. The first magnetic shielding member 163 is located between the second constraint magnetic member 161 and the first magnetic assembly 141, so as to reduce the magnetic interference of the second constraint magnetic member 161 on the anti-shake driving mechanism 140 and improve the reliability of the cooperation between the first magnetic assembly 141 and the third magnetic assembly 142.

[0295] In order to reduce the magnetic interference of the second constraint magnetic member 161 to the anti-shake driving mechanism 140, in some embodiments, referring to FIG. 7 and FIG. 25, the projection of the second constraint magnetic member 161 and the projection of the anti-shake driving mechanism 140 are staggered in the optical axis vertical plane (XY plane) of the lens 200. The two projections can be staggered without intersecting area. The magnetic interference between the second constraint magnetic member 161 and the anti-shake driving mechanism 140 is reduced, and the reliability of the cooperation between the first magnetic assembly 141 and the third magnetic assembly 142 is improved.

[0296] In order to facilitate the installation of the second movable member 120 on the fixed member 110, in some embodiments, referring to FIG. 9, FIG. 10 and FIG. 13, a suspension assembly 190 is further included, the suspension assembly 190 includes a fixed part 191, a movable part 192 and a plurality of elastic arms 193, the fixed part 191 has a receiving hole 1911, the movable part 192 is located in the receiving hole 1911, and two ends of the plurality of elastic arms 193 are connected to the fixed part 191 and the movable part 192 respectively, the fixed part 191 is fixed on the fixed member 110, and the second movable member 120 is fixed on the movable part 192.

[0297] The fixed part 191 and the movable part 192 in the suspension assembly 190 are connected through the plurality of elastic arms 193, and the elastic arms 193 can be bent and deformed. The fixed part 191 is connected to the fixed member 110, and the movable part 192 is connected to the second movable member 120, so that the second movable member 120 and the image sensor 300 are suspended relative to the fixed member 110.

[0298] When the voice coil motor formed by the first magnetic assembly 141 and the third magnetic assembly 142 works, the second movable member 120 can be driven to move on the XY plane relative to the fixed member 110, that is, the movable part 192 moves on the XY plane relative to the fixed part 191, and the plurality of elastic arms 193 are deformed to generate elastic force. When the voice coil motor formed by the first magnetic assembly 141 and the third magnetic assembly 142 stops driving, the elastic force of the elastic arms 193 drives the movable part 192 to drive the second movable member 120 and the image sensor 300 to reset, without the need to drive the second movable member 120 and the image sensor 300 to reset through the above-mentioned voice coil motor, thereby reducing the power consumption of the anti-shake structure 100.

[0299] When the second movable member 120 is arranged, referring to FIG. 9, FIG. 13 and FIG. 14, the second movable member 120 can be in a frame shape, the second movable member 120 is fixed on the side of the movable part 192 of the suspension assembly 190 facing the fixed member 110; in the optical axis vertical plane (XY plane) of the lens 200, the projection of the second movable member 120 covers the projection of the plurality of elastic arms 193; and the image sensor 300 is installed on the movable part 192 and located at the inner hole 121 of the second movable member 120.

[0300] The second movable part 120 covers the plurality of elastic arms 193, so that the first magnetic assembly 141 on the second movable part 120 and the plurality of elastic arms 193 are oppositely arranged in the direction of the optical axis 201, the size of the first magnetic assembly 141 is increased in the limited space, and the driving force of the voice coil motor formed by the first magnetic assembly 141 and the third magnetic assembly 142 is improved. The image sensor 300 is arranged in the inner hole 121 of the second movable part 120, so as to reduce the size of the overall structure in the direction of the optical axis 201. The second movable part 120 is substantially in the shape of a rectangular frame or other shapes.

[0301] The first magnetic assembly 141 can be arranged on the side of the second movable part 120 opposite to the plurality of elastic arms 193, so that the plurality of elastic arms 193 and the first magnetic assembly 141 are isolated by the second movable part 120, the risk of contact and friction damage between the deformed elastic arms 193 and the first magnetic assembly 141 is overcome, and the reliability of the elastic arms 193 is improved.

[0302] In order to realize the electrical connection between the image sensor 300 and the external circuit, in some embodiments, referring to FIG. 13, the fixed part 191, the movable part 192, and the elastic arm 193 all have circuit layers, the fixed part 191 and the movable part 192 are electrically connected through the plurality of elastic arms 193, and the image sensor 300 and the movable part 192 are electrically connected.

[0303] The fixed part 191 and the mainboard of the electronic device 1 are electrically connected, so that the image sensor 300 and the mainboard are electrically connected, the power supply and signal transmission of the image sensor 300 are realized. The processor of the mainboard provides a control signal to the fixed part 191, and transmits the control signal to the image sensor 300 on the movable part 192 through the elastic arm 193. The image signal obtained by the image sensor 300 can be transmitted to the mainboard through the circuit layers of the movable part 192, the elastic arm 193, and the fixed part 191. The fixed part 191, the elastic arm 193, and the movable part 192 are electrically connected in sequence, so that external power can be transmitted to the image sensor 300 and the predetermined electronic device 1921 on the movable part 192.

[0304] For example, the movable part 192 and the fixed part 191 can be flexible circuit boards or rigid circuit boards. The elastic arm 193 can be a flexible circuit board, which is easy to bend and deform. The predetermined electronic device 1921 can be arranged on the movable part 192. The extension part 194 is connected to the side of the movable part 192, and one end of the extension part 194 and the mainboard can be connected through a connector. Referring to FIGS. 9-12, the connecting part 120a can be connected to the side of the movable part 192 away from the second movable part 120. When the movable part 192 is a flexible circuit board, the connecting part 120a plays a reinforcing role.

[0305] In the arrangement of the elastic arms 193, referring to FIG. 13, the elastic arms 193 are arranged in pairs, and the pairs of elastic arms 193 are symmetrically distributed at opposite corners of the movable part 192. One or more pairs of elastic arms 193 are arranged at the same opposite corner of the movable part 192. The symmetry refers to rotating a figure by 180 degrees around a point, and the two figures are superimposed, and the two figures are symmetrically centered.

[0306] The pairs of elastic arms 193 are symmetrically arranged in terms of the elastic coefficients in the X direction and the Y direction. The elastic coefficients in the X direction and the Y direction are close to each other, so that the elastic arms 193 have a close effect on the movable part 192 in the X direction and the Y direction, which is beneficial to improving the motion stability of the image sensor 300 and improving the imaging quality of the camera module 1000.

[0307] The elastic arms 193 can be two-section L-shaped, three-section hook-shaped, or the like. The outer edge of the movable part 192 is substantially rectangular, and the elastic arms 193 can be arranged at two opposite corners of the movable part 192, or the elastic arms 193 can be arranged at four opposite corners of the movable part 192.

[0308] In some embodiments, referring to FIGS. 9 and 10, a filter 400 can be arranged between the lens 200 and the image sensor 300, which is used to filter infrared light or blue light in the light passing through the lens 200, so that the image sensor 300 has better imaging quality. The filter 400 can be blue glass (BG) or the like. The filter 400 can be arranged on the second movable part 120.

[0309] In order to make the lens 200 have a focusing function, in some embodiments, referring to FIGS. 4, 5, 27 and 28, a focusing assembly 500 is further included. The focusing assembly 500 includes a base 510, a carrier 520 and a focusing driving mechanism 530. The base 510 is fixed to the first movable part 130. The carrier 520 is movably mounted on the base 510 along the optical axis 201 of the lens 200. The focusing driving mechanism 530 is arranged between the base 510 and the carrier 520, and is used to drive the carrier 520 to move along the optical axis 201 of the lens 200. The lens 200 is mounted in an inner cavity 521 of the carrier 520.

[0310] The focusing driving mechanism 530 can drive the carrier 520 to move along the optical axis 201 relative to the base 510, and drive the lens 200 to move along the optical axis 201, so that the focal plane of the lens 200 coincides with the photosensitive surface of the image sensor 300, and the focusing function of the lens 200 is realized. The focusing driving mechanism 530 can be a voice coil motor, an SMA motor, a piezoelectric motor, or the like. The base 510 can be assembled on the first movable part 130, and the base 510 and the first movable part 130 can also be an integrated structure.

[0311] In some embodiments, referring to FIG. 27 and FIG. 28, the focusing driving mechanism 530 is a focusing voice coil motor. The focusing voice coil motor includes focusing magnetic pieces 531 and focusing coils 532, one of which is arranged on the base 510 and the other of which is arranged on the carrier 520. The focusing magnetic pieces 531 and the focusing coils 532 are arranged opposite to each other for driving the carrier 520 to move relative to the base 510 in the direction of the optical axis 201 of the lens 200.

[0312] For example, one or more focusing magnetic pieces 531 in the focusing voice coil motor are arranged on the base 510, and one or more focusing coils 532 are arranged on the carrier 520. The focusing magnetic pieces 531 and the focusing coils 532 are arranged opposite to each other in a one-to-one correspondence. The energized focusing coils 532 generate a Lorentz force in the magnetic field of the focusing magnetic pieces 531, which can drive the carrier 520 to move in the direction of the optical axis 201 of the lens 200, thereby achieving focusing of the lens 200.

[0313] When arranging the focusing magnetic pieces 531 and the focusing coils 532, the focusing magnetic pieces 531 and the focusing coils 532 can be arranged vertically (in the Z direction) and occupy a small area in the XY plane, which is conducive to miniaturization of the camera module 1000. The focusing magnetic pieces 531 can have two opposite polarity directions, both of which are perpendicular to the direction of the optical axis 201 of the lens 200. The polarity direction of the focusing magnetic pieces 531 is perpendicular to the winding plane of the focusing coils 532. The focusing coils 532 can be racetrack coils, and the length direction of the focusing coils 532 is perpendicular to the optical axis 201 of the lens 200. The winding plane of the focusing coils 532 is parallel to the optical axis 201 of the lens 200. Two sections of the focusing coils 532 can be arranged to correspond to the two polarity directions of the focusing magnetic pieces 531, respectively, and the current directions in the two sections are opposite. The focusing magnetic pieces 531 and the focusing coils 532 are arranged in a one-to-one correspondence, and one or more groups of focusing magnetic pieces 531 and focusing coils 532 can be arranged.

[0314] In order to reduce the magnetic interference between the focusing voice coil motor and the anti-shake driving mechanism 140, in some embodiments, referring to FIG. 5 and FIG. 29, the first magnetic assembly 141 includes a plurality of anti-shake magnetic pieces (141a, 141b) distributed around the optical axis 201 of the lens 200 (around the Z direction); in the XY plane perpendicular to the optical axis of the lens 200, the projection of the focusing magnetic piece 531 is located between the projections of two adjacent anti-shake magnetic pieces (141a, 141b), and the length direction of the projection of the focusing magnetic piece 531 is staggered with the length direction of the projection of the anti-shake magnetic piece (141a, 141b).

[0315] In the XY plane, the focusing magnetic piece 531 is arranged between two adjacent anti-shake magnetic pieces (141a, 141b), and the focusing magnetic piece 531 and the anti-shake magnetic pieces (141a, 141b) are arranged at a predetermined angle, which can reduce the magnetic interference between the focusing magnetic piece 531 and the anti-shake magnetic pieces, and enable the focusing voice coil motor and the anti-shake voice coil motor to work reliably.

[0316] For example, the first anti-shake magnetic piece 141a and the second anti-shake magnetic piece 141b in the first magnetic assembly 141 are distributed around the optical axis 201 of the lens 200, the length direction of the first anti-shake magnetic piece 141a is parallel to the X direction, and the length direction of the second anti-shake magnetic piece 141b is parallel to the Y direction. The plurality of focusing magnetic pieces 531 in the focusing voice coil motor are distributed around the optical axis 201 of the lens 200, and the length direction of part of the focusing magnetic pieces 531 is approximately 45° to the X direction, and the length direction of part of the focusing magnetic pieces 531 is approximately 45° to the Y direction. The focusing magnetic piece 531 and the anti-shake magnetic pieces (141a, 141b) are arranged at a predetermined angle, which can reduce the magnetic interference between the focusing magnetic piece 531 and the anti-shake magnetic pieces.

[0317] In order to improve the stability of the movement of the carrier 520 relative to the base 510, in some embodiments, referring to FIGS. 5, 27 and 28, a guide piece 533 is arranged between the base 510 and the carrier 520, which is used to guide the movement of the carrier 520 along the optical axis 201 of the lens 200. The guide piece 533 can be a sliding shaft extending along the optical axis 201, or a ball set arranged along the optical axis 201.

[0318] The outer circumferential surface of the carrier 520 has a matching part 522, the base 510 has a matching groove 511 and a mounting groove 512 in communication, and the guide piece 533 is mounted in the mounting groove 512. The matching part 522 of the carrier 520 is slidingly mounted in the matching groove 511, and the matching part 522 and the guide piece 533 in the mounting groove 512 are slidingly matched, so as to realize the stable sliding mounting of the carrier 520 on the base 510.

[0319] The matching part 522 of the carrier 520 is embedded with a limiting magnetic piece 534, and the guide piece 533 can be made of a magnetic material. The limiting magnetic piece 534 and the guide piece 533 are magnetically attracted and matched, so that the guide piece 533 is clamped between the matching part 522 of the carrier 520 and the guide piece 533. The limiting magnetic piece 534 can be a magnet.

[0320] In order to reduce the magnetic interference between the focusing magnetic piece 531 and the first magnetic assembly 141, in some embodiments, referring to FIGS. 5, 27 and 28, a second magnetic shielding piece 535 is arranged on the focusing magnetic piece 531, and the second magnetic shielding piece 535 is located between the focusing magnetic piece 531 and the first magnetic assembly 141.

[0321] The second magnetic isolation member 535 can be made of silicon steel, stainless steel or other magnetic conductive material. The second magnetic isolation member 535 is located between the focusing magnetic member 531 and the first magnetic assembly 141, reducing the magnetic interference between the focusing magnetic member 531 and the first magnetic assembly 141, and improving the reliability of the focusing voice coil motor and the anti-shake voice coil motor.

[0322] In the second magnetic isolation member 535, as shown in FIG. 27 and FIG. 28, the second magnetic isolation member 535 includes a first arm 5351 and a second arm 5352, which are connected and arranged in an L shape. The focusing magnetic member 531 is arranged in a slot of the second magnetic isolation member 535. The first arm 5351 extends along the radial direction of the lens 200, and the second arm 5352 extends along the optical axis 201 of the lens 200. The first arm 5351 is fixed to the base 510, and the second arm 5352 is connected to the end of the first arm 5351 away from the lens 200.

[0323] The second magnetic isolation member 535 can effectively reduce the magnetic interference between the focusing magnetic member 531 and the first magnetic assembly 141. The second magnetic isolation member 535 can constrain and guide the magnetic field of the focusing magnetic member 531, so that the focusing voice coil motor composed of the focusing magnetic member 531 and the focusing coil 532 can generate a larger magnetic thrust to drive the lens 200 and the carrier 520 to move along the optical axis 201.

[0324] In other embodiments, the camera module 1000 can not include the base 510, the carrier 520 and the focusing driving mechanism 530, and the lens 200 is directly arranged on the first movable member 130.

[0325] The following describes a scheme of configuring the first magnetic assembly 141, the second magnetic assembly 143 and the third magnetic assembly 142 as a double-pole moving-magnet voice coil motor.

[0326] As shown in FIG. 30 and FIG. 31, the first magnetic assembly 141 includes a plurality of anti-shake coils (141c, 141d) distributed around the optical axis 201 (i.e., around the Z direction) of the lens 200. The second magnetic assembly 143 includes a plurality of anti-shake magnetic members (143c, 143d) distributed around the optical axis 201 of the lens 200. The third magnetic assembly 142 includes a plurality of anti-shake magnetic members (142c, 142d) distributed around the optical axis 201 of the lens 200.

[0327] The plurality of anti-shake coils are distributed around the optical axis 201 of the lens 200, and can be two or more anti-shake coils distributed on the outer periphery of the lens 200. The plurality of anti-shake magnetic pieces are distributed around the optical axis 201 of the lens 200, and can be two or more anti-shake magnetic pieces distributed on the outer periphery of the lens 200. The plurality of anti-shake coils in the first magnetic assembly 141 are arranged on the fixed part 110, the plurality of anti-shake magnetic pieces in the second magnetic assembly 143 are arranged on the first movable part 130, and the plurality of anti-shake magnetic pieces in the third magnetic assembly 142 are arranged on the second movable part 120.

[0328] The plurality of anti-shake coils (141c, 141d) in the first magnetic assembly 141 and the plurality of anti-shake magnetic pieces (143c, 143d) in the second magnetic assembly 143 constitute a moving-magnetic voice coil motor. The anti-shake coils (141c, 141d) that are energized generate Lorentz force in the magnetic field of the anti-shake magnetic pieces (143c, 143d), which can drive the first movable part 130 and the lens 200 to move in the XY plane, thereby achieving optical anti-shake of the lens 200.

[0329] The plurality of anti-shake coils (141c, 141d) in the first magnetic assembly 141 and the plurality of anti-shake magnetic pieces (142c, 142d) in the third magnetic assembly 142 constitute another moving-magnetic voice coil motor. The anti-shake coils (141c, 141d) that are energized generate Lorentz force in the magnetic field of the anti-shake magnetic pieces (142c, 142d), which can drive the second movable part 120 and the image sensor 300 to move in the XY plane, thereby achieving optical anti-shake of the image sensor 300.

[0330] The bipolar moving-magnetic voice coil motor energizes the plurality of anti-shake coils (141c, 141d) in the first magnetic assembly 141, which can drive the first movable part 130 and the second movable part 120 to move in the XY plane, thereby achieving large-angle optical anti-shake and improving optical imaging quality. By multiplexing the plurality of anti-shake coils (141c, 141d) in the first magnetic assembly 141, the overall structure has a smaller size in the Z direction. Under a predetermined motion compensation amount, the lengths of the anti-shake coils in the first magnetic assembly 141, the lengths of the anti-shake magnetic pieces in the second magnetic assembly 143, and the lengths of the anti-shake magnetic pieces in the third magnetic assembly 142 can be small, so that the overall structure has a smaller size in the X direction and the Y direction, thereby occupying a smaller space.

[0331] To realize the first movable part 130 and the second movable part 120 can be translated in XY plane, in some embodiments, referring to FIG. 31, the plurality of anti-shake coils in the first magnetic assembly 141 includes the first anti-shake coil 141c and the second anti-shake coil 141d, the plurality of anti-shake magnetic parts in the third magnetic assembly 142 includes the third anti-shake magnetic part 142c and the fourth anti-shake magnetic part 142d, the plurality of anti-shake magnetic parts in the second magnetic assembly 143 includes the first anti-shake magnetic part 143c and the second anti-shake magnetic part 143d; in combination with FIG. 30, along the optical axis 201 direction of the lens 200, the first anti-shake magnetic part 143c, the first anti-shake coil 141c and the third anti-shake magnetic part 142c are arranged in sequence; the first anti-shake coil 141c and the first anti-shake magnetic part 143c are used to drive the first movable part 130 to be translated in the first direction (such as Y direction); the first anti-shake coil 141c and the third anti-shake magnetic part 142c are used to drive the second movable part 120 to be translated in the first direction (such as Y direction); along the optical axis 201 direction of the lens 200, the second anti-shake magnetic part 143d, the second anti-shake coil 141d and the fourth anti-shake magnetic part 142d are arranged in sequence; the second anti-shake coil 141d and the second anti-shake magnetic part 143d are used to drive the first movable part 130 to be translated in the second direction (such as X direction); the fourth anti-shake magnetic part 142d and the second anti-shake coil 141d are used to drive the second movable part 120 to be translated in the second direction (such as X direction); the first direction and the second direction intersect, and the optical axis 201 direction of the lens 200 is perpendicular to the first direction and the second direction.

[0332] Referring to FIG. 30, the energized first anti-shake coil 141c and the first anti-shake magnetic part 143c cooperate, and / or the energized second anti-shake coil 141d and the second anti-shake magnetic part 143d cooperate, which can realize the first movable part 130 and the lens 200 to be translated in XY plane, that is, the motion compensation of the lens 200.

[0333] The energized first anti-shake coil 141c and the third anti-shake magnetic part 142c cooperate, and / or the energized second anti-shake coil 141d and the fourth anti-shake magnetic part 142d cooperate, which can realize the second movable part 120 and the image sensor 300 to be translated in XY plane, that is, the motion compensation of the image sensor 300.

[0334] The first anti-shake coil 141c and the second anti-shake coil 141d on the fixed part 110 serve as a multiplexing part, referring to FIG. 31, the first anti-shake coil 141c is located between the first anti-shake magnetic part 143c and the third anti-shake magnetic part 142c, and the second anti-shake coil 141d is located between the second anti-shake magnetic part 143d and the fourth anti-shake magnetic part 142d, so that the overall structure occupies a smaller space.

[0335] The first direction and the second direction can be perpendicular, and the first direction and the second direction can be a Y direction and an X direction respectively. The first direction and the second direction can also intersect without being perpendicular.

[0336] In the case of arranging the first anti-shake magnetic member 143c, the first anti-shake coil 141c and the third anti-shake magnetic member 142c, referring to FIG. 30, the first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c) can have two opposite polarity directions. The arrow on the first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c) in FIG. 30 represents the polarity direction. In the direction of the optical axis 201 of the lens 200, the polarity directions of the corresponding regions of the third anti-shake magnetic member 142c and the first anti-shake magnetic member 143c are opposite. The polarity direction of the first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c) is perpendicular to the winding plane of the first anti-shake coil 141c. The winding plane of the first anti-shake coil 141c is perpendicular to the direction of the optical axis 201 of the lens 200. Referring to FIG. 31, the first anti-shake coil 141c can be a racetrack coil, and the length direction of the first anti-shake coil 141c extends along the second direction (for example, the X direction). Two sections of the first anti-shake coil 141c can be arranged respectively corresponding to the two polarity directions of the first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c), and the current directions in the two sections are opposite. The side of the first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c) facing the first anti-shake coil 141c includes a north pole (N) and a south pole (S), and the side of the first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c) facing away from the first anti-shake coil 141c includes a south pole (S) and a north pole (N) correspondingly.

[0337] The first anti-shake magnetic member 143c (the third anti-shake magnetic member 142c) has various optional implementation manners, and can be a double magnet, a Halbach magnet array or a single magnet. The specific structure can refer to the first anti-shake magnetic member 141a described above, and will not be described here.

[0338] The first anti-shake coil 141c is energized according to the arrow shown in FIG. 30, and under the action of the magnetic field of the first anti-shake magnetic member 143c, the two sections of the first anti-shake coil 141c will be subjected to a Lorentz force along the Y direction to the right. The fixed member 110 is a stationary component, and the first movable member 130 is a movable component. The reaction force of the Lorentz force makes the first movable member 130 move to the left along the Y direction. In the embodiment shown in FIG. 30, the first anti-shake coil 141c is energized according to the arrow shown in FIG. 30, and under the action of the magnetic field of the third anti-shake magnetic member 142c, the two sections of the first anti-shake coil 141c will be subjected to a Lorentz force along the Y direction to the left. The fixed member 110 is a stationary component, and the second movable member 120 is a movable component. The reaction force of the Lorentz force makes the second movable member 120 move to the right along the Y direction.

[0339] In setting the second anti-shake magnetic piece 143d, the second anti-shake coil 141d and the fourth anti-shake magnetic piece 142d, referring to FIG. 31, the second anti-shake magnetic piece 143d (the fourth anti-shake magnetic piece 142d) can have two opposite polarity directions. The polarity direction of the second anti-shake magnetic piece 143d (the fourth anti-shake magnetic piece 142d) is perpendicular to the winding plane of the second anti-shake coil 141d. The winding plane of the second anti-shake coil 141d is perpendicular to the direction of the optical axis 201 of the lens 200. The second anti-shake coil 141d can be a racetrack coil, and the length direction of the second anti-shake coil 141d extends along the first direction (such as the Y direction). Two sections of the second anti-shake coil 141d can be respectively arranged corresponding to the two polarity directions of the second anti-shake magnetic piece 143d (the fourth anti-shake magnetic piece 142d), and the current directions in the two sections are opposite. The side of the fourth anti-shake magnetic piece 142d facing the second anti-shake coil 141d includes a north pole (N) and a south pole (S), and the side of the fourth anti-shake magnetic piece 142d away from the second anti-shake coil 141d correspondingly includes a south pole (S) and a north pole (N). In the direction of the optical axis 201 of the lens 200, the polarity directions of the corresponding regions of the fourth anti-shake magnetic piece 142d and the second anti-shake magnetic piece 143d are opposite.

[0340] The second anti-shake magnetic piece 143d (the fourth anti-shake magnetic piece 142d) has various optional implementation manners, and can be a double magnet, a Halbach magnet array or a single magnet. The specific structure can refer to the first anti-shake magnetic piece 141a described above, and will not be described here.

[0341] In setting the number of anti-shake magnetic pieces and anti-shake coils, the number of the first anti-shake coil 141c and the second anti-shake coil 141d can both be one or more. The first anti-shake magnetic piece 143c (the third anti-shake magnetic piece 142c) and the first anti-shake coil 141c can be arranged one by one. Alternatively, one first anti-shake magnetic piece 143c (the third anti-shake magnetic piece 142c) and a plurality of adjacent first anti-shake coils 141c are arranged correspondingly. The second anti-shake magnetic piece 143d (the fourth anti-shake magnetic piece 142d) and the second anti-shake coil 141d can be arranged one by one. Alternatively, one second anti-shake magnetic piece 143d (the fourth anti-shake magnetic piece 142d) and a plurality of adjacent second anti-shake coils 141d are arranged correspondingly.

[0342] For example, the fixing member 110 is substantially L-shaped, and the fixing member 110 includes two connection segments 1111 extending in different directions and connected to each other, one of the connection segments 1111 is provided with the first anti-shake coil 141c, and the other connection segment 1111 is provided with the second anti-shake coil 141d.

[0343] Exemplarily, the fixing member 110 is in a frame shape, and the fixing member 110 includes four connection segments connected in sequence. Two first anti-shake coils 141c are respectively arranged on two spaced-apart connection segments, and two second anti-shake coils 141d are respectively arranged on the other two spaced-apart connection segments.

[0344] Exemplarily, two first anti-shake coils 141c are arranged on one connection segment of the fixing member 110, and the length direction of the two first anti-shake coils 141c is the same as the arrangement direction of the two first anti-shake coils 141c.

[0345] Exemplarily, one first anti-shake coil 141c is arranged on one of the two adjacent connection segments of the fixing member 110, and one second anti-shake coil 141d is arranged on the other connection segment.

[0346] In order to detect the position of the first movable member 130 in the XY plane, in some embodiments, referring to FIG. 30, the fixing member 110 is provided with a first position sensor 145a, and the first position sensor 145a is arranged opposite to the second magnetic assembly 143.

[0347] The plurality of anti-shake magnetic members in the second magnetic assembly 143 can form a predetermined magnetic field. The first position sensor 145a can be a Hall sensor, a tunnel magnetoresistance sensor, etc. The first position sensor 145a can detect the change of the magnetic field strength of the anti-shake magnetic member, and then the relative displacement amount of the first movable member 130 can be obtained.

[0348] The first position sensor 145a is electrically connected to the driving chip of the camera module 1000. According to the signal detected by the first position sensor 145a, the driving chip makes the plurality of anti-shake coils in the first magnetic assembly 141 be electrified, so as to drive the first movable member 130 to translate by a predetermined displacement, and realize the position closed-loop control of the first movable member 130.

[0349] Exemplarily, one first position sensor 145a is arranged at the center of one first anti-shake coil 141c and faces the first anti-shake magnetic member 143c, so as to realize the position detection of the first movable member 130 in the Y direction. One first position sensor 145a is arranged at the center of one second anti-shake coil 141d and faces the second anti-shake magnetic member 143d, so as to realize the position detection of the first movable member 130 in the X direction.

[0350] In order to detect the position of the second movable member 120 in the XY plane, in some embodiments, referring to FIG. 30, the fixing member 110 is provided with a second position sensor 144a, and the second position sensor 144a is arranged opposite to the third magnetic assembly 142.

[0351] The plurality of anti-shake magnetic pieces in the third magnetic assembly 142 can each form a predetermined magnetic field. The second position sensor 144a can be a Hall sensor, a tunnel magnetoresistance sensor, etc. The second position sensor 144a can detect a change in the magnetic field strength of the anti-shake magnetic piece, and thus can obtain the relative displacement amount of the second movable piece 120.

[0352] The second position sensor 144a is electrically connected to the driving chip of the camera module 1000. According to the signal detected by the second position sensor 144a, the driving chip causes the plurality of anti-shake coils in the first magnetic assembly 141 to be energized, so as to drive the second movable piece 120 to translate by a predetermined displacement, thereby realizing position closed-loop control of the second movable piece 120.

[0353] For example, a second position sensor 144a is arranged at the center of a first anti-shake coil 141c towards a third anti-shake magnetic piece 142c, so as to realize position detection of the second movable piece 120 in the Y direction. A second position sensor 144a is arranged at the center of a second anti-shake coil 141d towards a fourth anti-shake magnetic piece 142d, so as to realize position detection of the second movable piece 120 in the X direction.

[0354] Referring to FIGS. 30 and 31, the anti-shake structure 100 with the dual-pole moving-magnet voice coil motor can simultaneously perform motion compensation of the lens 200 and the image sensor 300. The anti-shake coils (the first anti-shake coil 141c and the second anti-shake coil 141d) on the fixed piece 110 are energized, so as to realize movement of the first movable piece 130 and the second movable piece 120 in the XY plane, movement of the lens 200 and the image sensor 300 in the XY plane, and optical anti-shake of the lens 200 and the image sensor 300.

[0355] In some embodiments, according to the shake signal of the camera module 1000, the driving chip of the camera module or the processor of the electronic device 1 calls a known computer program, so as to calculate the motion compensation amount of the anti-shake structure 100, so that the lens 200 and the image sensor 300 perform reverse movement of the same frequency, superimpose the motion compensation amount (anti-shake stroke), and realize optical anti-shake of the lens 200 and the image sensor 300.

[0356] Finally, it should be noted that the above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An anti-shake structure, characterized in that, The application relates to a camera lens anti-shake structure. The structure comprises a fixed part, a first movable part, a second movable part and an anti-shake driving mechanism. The first movable part is used for connecting with a lens, and the second movable part is used for connecting with an image sensor. The fixed part is located between the first movable part and the second movable part along the optical axis of the lens. The anti-shake driving mechanism comprises a first magnetic assembly, a third magnetic assembly and a second magnetic assembly. The first magnetic assembly is arranged on the fixed part. The second magnetic assembly is arranged on the first movable part, and the second magnetic assembly and the first magnetic assembly are arranged to face each other and are used for driving the first movable part to move relative to the fixed part on the optical axis vertical plane of the lens.

2. The anti-shake structure according to claim 1, characterized in that, The third magnetic assembly is arranged on the second movable part, and the third magnetic assembly and the first magnetic assembly are arranged to face each other and are used for driving the second movable part to move relative to the fixed part on the optical axis vertical plane of the lens.

3. The anti-shake structure according to claim 2, characterized in that, The first magnetic assembly comprises a plurality of anti-shake magnetic parts distributed around the optical axis of the lens, and the second magnetic assembly and the third magnetic assembly each comprise a plurality of anti-shake coils distributed around the optical axis of the lens. The structure further comprises a shake detection part and a driving chip. The shake detection part is used for detecting a shake signal of the anti-shake structure.

4. The anti-shake structure according to claim 3, characterized in that, The driving chip is used for energizing the second magnetic assembly and / or the third magnetic assembly according to the shake signal, so that the first movable part and / or the second movable part moves on the optical axis vertical plane of the lens. When a first condition is met, the driving chip can energize the second magnetic assembly and the third magnetic assembly, so that the first movable part and the second movable part move on the optical axis vertical plane of the lens.

5. The anti-shake structure according to claim 3, characterized in that, When a second condition is met, the driving chip can energize the second magnetic assembly, so that the first movable part moves on the optical axis vertical plane of the lens, or the driving chip energizes the third magnetic assembly, so that the second movable part moves on the optical axis vertical plane of the lens. The shake signal comprises a first shake signal part in a first frequency band and a second shake signal part in a second frequency band, and the first frequency band and the second frequency band are non-intersected. The driving chip is used for energizing the second magnetic assembly according to the first shake signal part, so that the first movable part moves on the optical axis vertical plane of the lens.

6. The anti-shake structure according to any one of claims 2 to 5, characterized in that, The driving chip is further used for energizing the third magnetic assembly according to the second shake signal part, so that the second movable part moves on the optical axis vertical plane of the lens. The plurality of anti-shake magnetic parts comprises a first anti-shake magnetic part and a second anti-shake magnetic part, and the fixed part comprises two connection sections which are connected and extend in different directions, wherein one of the connection sections is provided with the first anti-shake magnetic part, and the other connection section is provided with the second anti-shake magnetic part. Or, the plurality of anti-shake magnetic parts comprises a first anti-shake magnetic part and a second anti-shake magnetic part, and the fixed part comprises four connection sections which are sequentially connected in a head-to-tail mode, wherein two of the connection sections which are spaced apart are respectively provided with the first anti-shake magnetic part, and the other two of the connection sections which are spaced apart are respectively provided with the second anti-shake magnetic part.

7. The anti-shake structure according to any one of claims 2 to 6, characterized in that, The first movable part is provided with a first position sensor, and the first position sensor and the first magnetic assembly are arranged to face each other. The second movable part is provided with a second position sensor, and the second position sensor and the first magnetic assembly are arranged to face each other.

8. The anti-shake structure according to any one of claims 1 to 7, characterized in that, The fixed part is made of a magnetic conductive material, the first magnetic assembly is bonded to one side of the fixed part facing the second movable part, or the first magnetic assembly is bonded to one side of the fixed part facing the first movable part; the fixed part has at least one opening corresponding to the first magnetic assembly, and the first magnetic assembly covers the opening.

9. The anti-shake structure according to claim 8, characterized in that, The anti-shake magnetic part in the first magnetic assembly has two polarity parts, the polarity directions of the two polarity parts are opposite and parallel to the optical axis direction of the lens; the fixed part has at least one opening corresponding to each of the polarity parts, and the area between the adjacent openings on the fixed part is bonded with the first magnetic assembly.

10. The anti-shake structure according to any one of claims 1 to 9, characterized in that, The fixed part has a avoiding position, and the first magnetic assembly is distributed in the area outside the avoiding position.

11. The anti-shake structure according to any one of claims 1 to 10, characterized in that, It also includes a dustproof assembly, which is arranged on the first movable part and / or the fixed part, and is used to reduce the entry of external dust into the first movable part and the fixed part through the gap between the first movable part and the fixed part.

12. The anti-shake structure according to claim 11, characterized in that, A bending channel is formed between the edge of the first movable part and the edge of the fixed part, and the dustproof assembly includes a dust-catching adhesive arranged on the wall surface of the bending channel. Alternatively, the dustproof assembly includes a flexible part, one end of which is connected to the edge of the first movable part, and the other end is connected to the edge of the fixed part.

13. The anti-shake structure according to any one of claims 1 to 12, characterized in that, A plurality of first support parts are arranged between the first movable part and the fixed part, and at least part of the first support parts are distributed around the optical axis of the lens.

14. The anti-shake structure according to claim 13, characterized in that, A plurality of first support parts are arranged on the first movable part, and a plurality of first support parts are arranged on the side of the fixed part facing the first movable part. Alternatively, a plurality of first support parts are arranged on the fixed part, and a plurality of first support parts are arranged on the side of the first movable part facing the fixed part. Alternatively, a plurality of first support parts include protruding parts or balls.

15. The anti-shake structure according to claim 13 or 14, characterized in that, It also includes a first constraint assembly for keeping a plurality of first support parts arranged between the first movable part and the fixed part.

16. The anti-shake structure according to claim 15, characterized in that, The first constraint assembly can form a first pressure on the first movable part towards the fixed part, and the first pressure is greater than the gravity of the lens.

17. The anti-shake structure according to claim 15 or 16, characterized in that, The first constraint assembly includes a first constraint magnetic part and a first magnetic conductive part, one of the first constraint magnetic part and the first magnetic conductive part is arranged on the first movable part, and the other is arranged on the fixed part, and the first constraint magnetic part and the first magnetic conductive part are magnetically attracted and matched. Alternatively, the first magnetic assembly includes an anti-shake magnetic part, the first constraint assembly includes a first magnetic conductive part arranged on the first movable part, and the anti-shake magnetic part and the first magnetic conductive part are magnetically attracted and matched.

18. The anti-shake structure according to claim 17, characterized in that, The first magnetic conductive part and the first support part are arranged opposite to each other or adjacent to each other. Or, in the case that the first constraint assembly comprises a first constraint magnetic element and a first magnetic conducting element, the projection of the first constraint magnetic element and the projection of the anti-shake driving mechanism are staggered on the optical axis vertical plane of the lens.

19. The anti-shake structure according to claim 15 or 16, characterized in that, The first constraint assembly comprises an elastic element, one end of the elastic element is fixed on the fixed element, and the other end is arranged on the side of the first movable element away from the fixed element.

20. The anti-shake structure according to claim 19, characterized in that, The rigidity of the elastic element in the optical axis direction of the lens is greater than the rigidity of the elastic element in the vertical direction of the optical axis of the lens. And / or, the elastic element comprises a connecting arm and a meandering arm, the connecting arm extends along the optical axis direction of the lens, one end of the connecting arm is connected with the fixed element, and the other end is connected with the meandering arm, and the meandering arm is arranged on the first movable element.

21. The anti-shake structure according to any one of claims 1 to 20, characterized in that, The side of the second movable element away from the fixed element is fixed with a connecting element, the side of the connecting element away from the second movable element is spaced apart with a bottom plate, the bottom plate is fixedly connected with the fixed element, and a plurality of second supporting portions are clamped between the connecting element and the bottom plate, and at least part of the second supporting portions are distributed around the optical axis of the lens.

22. The anti-shake structure according to claim 21, characterized in that, A plurality of second supporting portions are mounted on the connecting element, and a plurality of second supporting portions are arranged on the side of the bottom plate facing the connecting element. Or, a plurality of second supporting portions are mounted on the bottom plate, and a plurality of second supporting portions are arranged on the side of the connecting element facing the bottom plate. Or, a plurality of second supporting portions comprise convex portions or balls.

23. The anti-shake structure according to claim 21 or 22, characterized in that, Further comprising a second constraint assembly for keeping a plurality of second supporting portions clamped between the connecting element and the bottom plate.

24. The anti-shake structure according to claim 23, characterized in that, The material of the bottom plate is a magnetic conducting material, the second constraint assembly comprises a second constraint magnetic element arranged on the second movable element, and the second constraint magnetic element and the bottom plate are magnetically attracted and matched. Or, the second constraint assembly comprises a second constraint magnetic element arranged on the second movable element, and a second magnetic conducting element arranged on the bottom plate, and the second constraint magnetic element and the second magnetic conducting element are magnetically attracted and matched.

25. The anti-shake structure according to claim 24, characterized in that, The first magnetic shielding element is arranged on the second movable element, and the first magnetic shielding element is located between the second constraint magnetic element and the anti-shake driving mechanism. And / or, the projection of the second constraint magnetic element and the projection of the anti-shake driving mechanism are staggered on the optical axis vertical plane of the lens.

26. The anti-shake structure according to any one of claims 1 to 25, characterized in that, Further comprising a suspension assembly, the suspension assembly comprises a fixed part, a movable part and a plurality of elastic arms, the fixed part has a receiving hole, the movable part is located in the receiving hole, and the two ends of the plurality of elastic arms are connected to the fixed part and the movable part respectively, the fixed part is fixed on the fixed element, and the second movable element is fixed on the movable part.

27. The anti-shake structure according to claim 26, characterized in that, The second movable element is in the form of a frame, the second movable element is fixed on the side of the movable part facing the fixed element, the projection of the second movable element covers the projections of the plurality of elastic arms on the optical axis vertical plane of the lens, and the image sensor is mounted on the movable part and located at the inner hole of the second movable element.

28. The anti-shake structure according to claim 26 or 27, characterized in that, The fixed part, the movable part and the plurality of elastic arms each have a circuit layer, the fixed part and the movable part are electrically connected through the plurality of elastic arms, and the image sensor is electrically connected with the movable part.

29. A camera module, comprising: Comprise: A lens, an image sensor and the anti-shake structure according to any one of claims 1 to 28, the image sensor is arranged on the second movable member, the lens is arranged on the first movable member, and the light exit side of the lens and the image sensor are arranged to face each other.

30. The camera module of claim 29, wherein, Further comprising a base, a carrier and a focusing driving mechanism, the base is fixed on the first movable member, the carrier is movably arranged on the base along the optical axis of the lens; the focusing driving mechanism is arranged between the base and the carrier, and is used for driving the carrier to move along the optical axis of the lens; and the lens is arranged on the carrier.

31. The camera module of claim 30, wherein, The focusing driving mechanism is a focusing voice coil motor, the focusing voice coil motor comprises a focusing magnetic member and a focusing coil, one of the focusing magnetic member and the focusing coil is arranged on the base, and the other is arranged on the carrier, and the focusing magnetic member and the focusing coil are arranged to face each other; The first magnetic assembly comprises a plurality of anti-shake magnetic members distributed around the optical axis of the lens; on the vertical plane of the optical axis of the lens, the projection of the focusing magnetic member is located between the projections of two adjacent anti-shake magnetic members, and the length direction of the projection of the focusing magnetic member and the length direction of the projection of the anti-shake magnetic member are arranged to be staggered.

32. An electronic device, comprising: Comprise a device housing and the camera module according to any one of claims 29 to 31, and the camera module is arranged in the device housing.

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