Motor system, camera module and electronic equipment

Abstract

The embodiment of the invention provides a motor system, a camera module and electronic equipment, and relates to the technical field of camera modules. The motor system comprises an automatic focusing motor base, an optical anti-vibration base and a shape memory alloy wire set. The automatic focusing motor base comprises a first insulation body and a first metal structure, the first metal structure comprises a first conduction part and a first connection part, the first conduction part is wrapped in the first insulation body, and the first connection part is exposed out of the surface of the first insulation body. The optical anti-vibration base is provided with a first surface, the first insulating body is provided with a second surface, the first surface is opposite to the second surface, the first surface is in sliding fit with the second surface, and the optical anti-vibration base comprises a second metal structure. One end of the shape memory alloy wire group is fixed and electrically connected with the first connecting part, and the other end of the shape memory alloy wire group is fixed and electrically connected with the second metal structure. Therefore, the failure rate of the motor system of the camera module can be reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of camera module technology, and in particular to a motor system, a camera module and an electronic device. Background Art

[0002] Electronic devices such as mobile phones and tablet computers often include camera modules, which enable the electronic devices to have a shooting function. The motor system of the camera module may include an auto focus (AF) motor, and the lens of the camera module is set on the auto focus motor, so that the camera module can achieve auto focus. In related technologies, the camera module may also include an optical image stabilization (OIS) structure, and the OIS structure drives the camera module (or the camera module and the AF motor at the same time) to achieve optical image stabilization.

[0003] However, in the related art, the camera module includes an AF motor and an OIS motor, and the failure rate of the motor system is relatively high. Summary of the invention

[0004] The embodiments of the present application provide a motor system, a camera module and an electronic device, which are helpful in reducing the failure rate of the motor system of the camera module.

[0005] The first aspect of the embodiment of the present application provides a motor system, which includes an autofocus motor base, an optical image stabilization base and a shape memory alloy wire group. The autofocus motor base includes a first insulating body and a first metal structure, the first metal structure and the first insulating body are an integral structure, the first metal structure includes a first conductive part and a first connecting part, the first conductive part is enclosed in the first insulating body, the first connecting part is exposed on the surface of the first insulating body, and the first connecting part is electrically connected to the first conductive part. The optical image stabilization base has a first surface, the first surface is located on one side of the optical image stabilization base in the height direction of the motor system, the first insulating body has a second surface, the first surface is opposite to the second surface, the first surface and the second surface are slidably matched, and the optical image stabilization base includes a second metal structure. One end of the shape memory alloy wire group is fixed to the first connecting part and electrically connected, and the other end of the shape memory alloy wire group is fixed to the second metal structure and electrically connected.

[0006] In the motor system provided by the embodiment of the present application, the two ends of the shape memory alloy wire group are electrically connected to the first connection part and the second metal structure respectively, and the two ends of the shape memory alloy wire group can form a conductive loop through the first metal structure and the second metal structure respectively, so as to realize the power supply of the shape memory alloy wire group. The two ends of the shape memory alloy wire group are fixed to the first connection part and the second metal structure respectively, and the deformation of the shape memory alloy wire group when the power-on state changes can be used to drive the autofocus motor base to move relative to the optical image stabilization base to realize the optical image stabilization of the camera module.

[0007] The first metal structure used for electrically connecting to the shape memory alloy wire group is an integrated structure with the first insulating body, so that there is no need to set other structural parts such as springs between the optical image stabilization base and the autofocus motor base to make the shape memory alloy wire group form a conductive circuit, which is conducive to reducing the components of the motor system, making the structure of the motor system simpler, reducing the assembly steps, and making assembly easier.

[0008] The first metal structure used for electrically connecting to the shape memory alloy wire group is an integral structure with the first insulating body. The first metal structure is firmly combined with the first insulating body, so that the first metal structure is not easy to separate from the first insulating body, and it is not easy to have problems such as the autofocus motor falling off, the shape memory alloy wire being clamped between the autofocus motor base and the crack position between the structural parts electrically connecting the shape memory alloy wire group. In addition, the autofocus motor base connected to the shape memory alloy wire group is not easy to deform, and the edge is often thicker. When the shape memory alloy wire is deformed and pulls the autofocus motor base to move, the shape memory alloy wire is not easy to have problems such as hanging and cutting. In addition, the first metal structure used for electrically connecting to the shape memory alloy wire group is exposed to a small portion of the surface of the first insulating body, so that the first metal structure used for electrically connecting to the shape memory alloy wire group is not easy to have electrical contact with other conductive parts, which is conducive to reducing the risk of problems such as short circuits in the motor system. Therefore, the motor system provided by the embodiment of the present application has a low failure rate.

[0009] In a possible implementation, the shape memory alloy wire assembly is disposed on a side of the optical image stabilization base away from the second surface. In this way, the shape memory alloy wire assembly is unlikely to affect the relative movement of the optical image stabilization base and the autofocus motor base, and the relative movement of the optical image stabilization base and the autofocus motor base is unlikely to cause problems such as hanging or clamping of the shape memory alloy wire assembly.

[0010] In a possible implementation, the first insulating body includes a first main body portion and a first boss portion. The first main body portion is superimposed on the first surface, the first main body portion has a second surface, the first boss portion is disposed on the second surface, and the first connecting portion is located at an end of the first boss portion away from the second surface. In this way, it is convenient to arrange the first connecting portion on a side of the optical image stabilization base away from the second surface, so as to facilitate the connection between the shape memory alloy wire group located on the side of the optical image stabilization base away from the second surface and the first connecting portion.

[0011] In a possible implementation, the optical image stabilization base has a hollow portion, and the first boss portion is inserted into the hollow portion. In this way, the hollow portion can be used to allow one end of the first boss portion away from the second surface to be inserted to the side of the optical image stabilization base away from the second surface, so as to connect the first connection portion to the shape memory alloy wire group located on the side of the optical image stabilization base away from the second surface. In addition, the hollow portion can also be used to allow the first boss portion to move relative to the optical image stabilization base, so as to achieve optical image stabilization.

[0012] In a possible embodiment, the first metal structure also includes a second connecting portion. The second connecting portion is exposed on the surface of the first insulating body, and the second connecting portion is electrically connected to the first conducting portion, so that the first metal structure is more convenient to be electrically connected to the conductive member outside the first insulating body, and it is easy for the shape memory alloy wire group to form a conductive loop through the first metal structure. The second metal structure includes a first metal substructure and a second metal substructure, the first metal substructure is insulated from the second metal substructure, the first metal substructure is fixed and electrically connected to the end of the shape memory alloy wire group, and the second metal substructure is electrically connected to the second connecting portion. In this way, after the first metal structure is electrically connected to the second metal substructure through the second connecting portion, the first metal structure can form a conductive loop through the second metal substructure, and the shape memory alloy wire group can form a conductive loop more conveniently, which is convenient for the shape memory alloy wire group to be energized.

[0013] In a possible implementation, the second metal substructure is electrically connected to the second connection portion via an elastic conductive member. In this way, when the optical image stabilization base and the autofocus motor base move relative to each other, the electrical connection between the second metal substructure and the second connection portion is maintained. In addition, the elastic conductive member is retractable, and the redundant part of the elastic conductive member is not easily moved at will, and it is not easy for the elastic conductive member to be hooked with other components.

[0014] In one possible implementation, the shape memory alloy wire group includes a plurality of shape memory alloy wires, the first metal substructure includes a plurality of anti-shake base electrode traces corresponding to the plurality of shape memory alloy wires one by one, the plurality of anti-shake base electrode traces are insulated from each other, one end of the shape memory alloy wire is fixed to and electrically connected with the corresponding anti-shake base electrode trace, and the other end of the shape memory alloy wire is fixed to and electrically connected with the first connecting portion. In this way, the number of focus base electrode traces on the autofocus motor base required for the plurality of different shape memory alloy wires to form a conductive loop is small, making it easier to electrically connect the focus base electrode trace that is far away from the module circuit board and can move relative to the module circuit board to the module circuit board. In addition, it is also beneficial to save space on the autofocus motor base and facilitate the arrangement of other conductive structures on the autofocus motor base.

[0015] In a possible implementation, the optical image stabilization base further includes a second insulating body, and the second insulating body has a first surface. The second insulating body and the second metal structure are an integral structure, and the second metal structure includes a second conductive part and a third connecting part, the second conductive part is enclosed in the second insulating body, the third connecting part is exposed on the surface of the second insulating body, the third connecting part is electrically connected to the second conductive part, and the end of the shape memory alloy wire group is fixed to the third connecting part and electrically connected. In this way, the second conductive part is enclosed by the second insulating body, and the shape memory alloy wire is not easy to be clamped in the gap at the second conductive part. In addition, it is not easy to have a short circuit problem caused by the conductive particles being clamped in the gap at the second conductive part. In addition, it is not easy to have a cutting line problem caused by the shape memory alloy wire contacting the thin edge of the second conductive part. Furthermore, the second metal structure for electrically connecting to the shape memory alloy wire group is exposed to a small portion of the surface of the second insulating body, so that the second metal structure for electrically connecting to the shape memory alloy wire group is not easy to be in electrical contact with other conductive parts, which is conducive to reducing the risk of problems such as short circuits in the motor system. As a result, it is conducive to further reducing the failure rate of the motor system.

[0016] In a possible implementation, the third connection portion is located on a side of the second insulating body away from the second surface, so as to facilitate connection between the shape memory alloy wire group located on a side of the optical image stabilization base away from the second surface and the third connection portion.

[0017] In a possible implementation, the second insulating body includes a second main body and a support portion. The second main body has a first surface, the support portion is disposed on a side of the second main body away from the second surface, and the third connection portion is disposed on a side of the second main body away from the second surface. In this way, the support portion can prop up the second main body to separate out a space for accommodating components such as a shape memory alloy wire group, which is conducive to arranging the shape memory alloy wire group on a side of the optical image stabilization base away from the second surface.

[0018] In a possible embodiment, the first metal substructure of the second metal structure includes a second conductive part and a third connecting part, the second metal substructure of the second metal structure includes a third conductive part and a fourth connecting part, the third conductive part is enclosed in the second insulating body, the fourth connecting part is exposed on the surface of the second insulating body, the fourth connecting part is electrically connected to the third conductive part, and the second connecting part of the first metal structure is electrically connected to the fourth connecting part. In this way, the second metal substructure can be electrically connected to the first metal structure by exposing the fourth connecting part on the surface of the second insulating body. The third conductive part is enclosed by the second insulating body, and the problem of clamping wire caused by the shape memory alloy wire being clamped in the gap at the third conductive part is not easy to occur. In addition, the problem of short circuit caused by the conductive particles being clamped in the gap at the third conductive part is not easy to occur. In addition, the problem of cutting wire caused by the shape memory alloy wire contacting the thin edge of the third conductive part is not easy to occur. Furthermore, the part of the second metal substructure exposed on the surface of the second insulating body is small, so that the second metal substructure is not easy to be in electrical contact with other conductive parts, which is conducive to reducing the risk of short circuit and other problems in the motor system. Therefore, it is conducive to further reducing the failure rate of the motor system.

[0019] In one possible embodiment, the second insulating body includes a second boss portion. The second boss portion is disposed on the first surface, and the second boss portion and the first main body portion of the first insulating body are offset on the first surface, and the fourth connection portion is located at an end of the second boss portion away from the first surface. In this way, the fourth connection portion is located at an end of the second boss portion away from the first surface, which is beneficial to reducing the distance between the fourth connection portion and the second connection portion in the height direction of the motor system, and is convenient for connecting the fourth connection portion with the second connection portion. In addition, after the fourth connection portion is connected to the second connection portion, the optical image stabilization base can be made to pull less on the autofocus motor base in the height direction of the motor system, which is beneficial for the relative movement of the autofocus motor base and the optical image stabilization base. In addition, the second boss portion and the first main body portion are offset on the first surface, which is convenient for the first main body portion to slide on the first surface.

[0020] In one possible implementation, at least one of the first surface and the second surface is provided with a first groove, a ball is provided in the first groove, and the first surface and the second surface are slidably matched through the ball. In this way, the friction between the first surface and the second surface can be reduced by the ball provided between the first surface and the second surface, which is beneficial to reduce the jitter during relative movement between the optical image stabilization base and the autofocus motor base, that is, it is beneficial to reduce the jitter of the camera module during optical image stabilization, thereby helping to improve the accuracy and efficiency of optical image stabilization. In addition, the ball is provided in the first groove, and the first groove can limit the position of the ball, so that the ball is not easy to slide out or fall. In addition, the ball is provided in the first groove, and the assembly of the ball is also relatively easy.

[0021] In a possible implementation, at least one of the autofocus motor base and the optical image stabilization base includes a magnetic member, and the magnetic member is magnetically attracted to the first metal structure or the second metal structure to fix the autofocus motor base to the optical image stabilization base. In this way, through the magnetic attraction between the magnetic member and the first metal structure or the second metal structure, it is convenient to make the shape memory alloy wire group overcome the magnetic attraction force to pull the autofocus motor base relative to the optical image stabilization base to move on the basis of achieving the fixation of the autofocus motor base and the optical image stabilization base, so as to achieve optical image stabilization. In addition, compared with the solution that the autofocus motor base and the optical image stabilization base are pre-stressed by the spring arranged between the two, the magnetic attraction force generated by the magnetic member is more consistent with the elastic restoring force of the spring, and is more stable, so that the pre-stress of the autofocus motor base on the optical image stabilization base is more consistent and more stable. In addition, the first metal structure or the second metal structure used for power supply is used to cooperate with the magnetic member to form a fixed structure that fixes the autofocus motor base and the optical image stabilization base, which can make the overall structure of the motor system simpler.

[0022] In a possible implementation, at least one of the first surface and the second surface is provided with a second groove, and the magnetic member is provided in the second groove. In this way, the assembly of the magnetic member is more convenient. In addition, the distance between the magnetic member and the first metal structure or the second metal structure of magnetic attraction is relatively close, and the magnetic attraction force between the magnetic member and the first metal structure or the second metal structure of magnetic attraction is relatively large, which is conducive to the magnetic attraction fixation between the autofocus motor base and the optical image stabilization base.

[0023] In a possible implementation, the motor system further includes: a plurality of elastic members symmetrically arranged relative to the center of the autofocus motor base. One end of the elastic member is fixedly connected to the autofocus motor base, and the other end of the elastic member is fixedly connected to the optical image stabilization base. The autofocus motor base and the optical image stabilization base are connected by a plurality of elastic members symmetrically arranged relative to the center of the autofocus motor base. The elastic member can be used to limit the relative movement of the autofocus motor base and the optical image stabilization base, so that the autofocus motor base is centered, which is conducive to rotating the autofocus motor base around the optical axis when performing optical image stabilization, so that the autofocus motor base is not prone to eccentricity. At least one elastic member is an elastic conductive member. On the basis of being able to limit the relative movement of the autofocus motor base and the optical image stabilization base, at least one elastic member can also play a role in electrically connecting the second metal substructure to the second connecting portion, so that the motor system has fewer components. In addition, the influence of the elastic conductive member that is separately arranged to electrically connect the second metal substructure to the second connecting portion on the relative movement of the autofocus motor base and the optical image stabilization base can also be eliminated.

[0024] In a possible implementation, the motor system further includes a first flexible circuit board and a second flexible circuit board. One end of the first flexible circuit board is fixedly connected to the optical image stabilization base, the other end of the first flexible circuit board is fixedly connected to the autofocus motor base, one end of the second flexible circuit board is fixedly connected to the optical image stabilization base, and the other end of the second flexible circuit board is fixedly connected to the autofocus motor base. One end of the first flexible circuit board connected to the autofocus motor base and one end of the second flexible circuit board connected to the autofocus motor base are symmetrically arranged relative to the center of the autofocus motor base. In this way, when the autofocus motor base rotates around the center of the autofocus motor base relative to the optical image stabilization base, the first flexible circuit board and the second flexible circuit board can offset the pulling of the autofocus motor base in the radial direction of the lens, which is conducive to the rotation of the autofocus motor base around the optical axis of the lens, so that the autofocus motor base is not prone to eccentricity. In addition, in the example of centering the autofocus motor base by an elastic member, the eccentricity of the autofocus motor base is small when the autofocus motor base rotates, and the elastic force required to be provided by the elastic member to center the autofocus motor base is small, which can reduce the requirements for the elastic force provided by the elastic member.

[0025] In a possible implementation, the motor system further includes a metal base and a metal cover. The metal cover is connected to the metal base, and the metal cover and the metal base are arranged to form an assembly space. The autofocus motor base, the optical image stabilization base and the shape memory alloy wire group are all arranged in the assembly space, and the side of the optical image stabilization base facing away from the second surface is fixedly connected to the metal base. In this way, the metal base and the metal cover can play a role of electromagnetic shielding, and can reduce mutual interference inside and outside the assembly space. In addition, by providing a metal base, the material of the metal base and the metal cover is the same or similar, which facilitates the assembly of the metal cover. In addition, by providing a metal base, it is also convenient to assemble structures such as an insulating body (for example, a second insulating body) onto the module circuit board, which facilitates the assembly of the optical image stabilization base on the module circuit board, and can reduce restrictions on the material of the optical image stabilization base.

[0026] The second aspect of the embodiment of the present application provides a camera module, which includes a module circuit board and a motor system in any of the above embodiments. The optical image stabilization base of the motor system is arranged on the module circuit board, and the first metal structure of the motor system and the second metal structure of the motor system are electrically connected to the module circuit board.

[0027] A third aspect of an embodiment of the present application provides an electronic device, which includes a housing and a camera module according to any of the above embodiments, wherein the camera module is disposed in the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 An exploded schematic diagram of an electronic device provided in an embodiment of the present application;

[0029] Figure 2 A cross-sectional schematic diagram of a camera module provided in an embodiment of the present application;

[0030] Figure 3 An exploded schematic diagram of a motor system provided in an embodiment of the present application;

[0031] Figure 4 A cross-sectional schematic diagram of a motor system provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of a first metal structure provided in an embodiment of the present application;

[0033] Figure 6 A schematic diagram of an autofocus motor base of a motor system provided in an embodiment of the present application;

[0034] Figure 7 A schematic diagram of an autofocus motor base of another motor system provided in an embodiment of the present application;

[0035] Figure 8 A schematic diagram of a second metal structure provided in an embodiment of the present application;

[0036] Fig. 9 A schematic diagram of an optical image stabilization base of a motor system provided in an embodiment of the present application;

[0037] Fig.10 A schematic diagram of an optical image stabilization base of another motor system provided in an embodiment of the present application;

[0038] Fig.11 A schematic diagram of the connection between a second metal structure and a fixed claw of a motor system provided in an embodiment of the present application;

[0039] Fig.12 A schematic diagram of the connection of an optical image stabilization base, an autofocus motor base, and a shape memory alloy wire assembly of a motor system provided in an embodiment of the present application;

[0040] Fig.13 A schematic diagram of the connection between a first metal structure, a second metal structure, and a shape memory alloy wire group of a motor system provided in an embodiment of the present application;

[0041] Fig.14 A schematic diagram of an optical image stabilization base of another motor system provided in an embodiment of the present application;

[0042] Fig.15 A schematic diagram of an autofocus motor base of another motor system provided in an embodiment of the present application;

[0043] Fig.16A schematic diagram of the connection between an autofocus motor base and an optical image stabilization base of a motor system provided in an embodiment of the present application;

[0044] Fig.17 A schematic diagram of the connection between an autofocus motor base and an optical image stabilization base of another motor system provided in an embodiment of the present application;

[0045] Fig.18 A schematic diagram of the connection between an autofocus motor and an optical image stabilization base of a motor system provided in an embodiment of the present application;

[0046] Fig.19 A schematic diagram of the connection between an autofocus motor and an optical image stabilization base of another motor system provided in an embodiment of the present application.

[0047] Description of reference numerals:

[0048] 100, housing; 110, back cover; 120, middle frame;

[0049] 200, display screen;

[0050] 300, camera module; 300a, front camera module; 300b, rear camera module; 310, lens; 320, motor system; 330, module circuit board; 340, photosensitive element;

[0051] 400, motherboard;

[0052] 500, battery;

[0053] 1000. Autofocus motor base;

[0054] 1100, first insulating body; 1110, first main body; 1111, second surface; 1120, first boss portion;

[0055] 1200, first metal structure; 1210, first conducting part; 1220, first connecting part; 1230, second connecting part; 1240, focus base electrode wiring; 1240a, first focus base electrode wiring; 1240b, second focus base electrode wiring;

[0056] 2000, optical image stabilization base;

[0057] 2100, second insulating body; 2110, second main body; 2111, first surface; 2112, hollow part; 2120, supporting part; 2130, second boss part;

[0058] 2200, second metal structure;

[0059] 2210, first metal substructure; 2211, anti-shake base electrode routing; 2211a, first anti-shake base electrode routing; 2211b, second anti-shake base electrode routing; 2211c, third anti-shake base electrode routing; 2211d, fourth anti-shake base electrode routing; 2212, second conducting part; 2213, third connecting part;

[0060] 2220, second metal substructure; 2221, third conducting portion; 2222, fourth connecting portion;

[0061] 2230, ground routing;

[0062] 3000, shape memory alloy wire group; 3100, shape memory alloy wire; 3100a, first shape memory alloy wire; 3100b, second shape memory alloy wire; 3100c, third shape memory alloy wire; 3100d, fourth shape memory alloy wire;

[0063] 4000, metal base;

[0064] 5000, metal cover;

[0065] 6000, auto focus movable component; 6100, limiter;

[0066] 7100, first groove; 7200, ball; 7300, magnetic member; 7400, second groove; 7500, elastic member; 7510, elastic conductive member; 7600, fixed claw; 7600a, first fixed claw; 7600b, second fixed claw; 7600c, third fixed claw; 7600d, fourth fixed claw; 7700, movable claw; 7700a, first movable claw; 7700b, second movable claw;

[0067] 8000, flexible circuit board assembly; 8100, first flexible circuit board; 8200, second flexible circuit board. DETAILED DESCRIPTION

[0068] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0069] For ease of understanding, some terms involved in the embodiments of this application are first explained:

[0070] Auto focus (AF): When the camera module is shooting, it needs to adjust the object distance and image distance of the lens to make the lens obtain a clear image. Auto focus is to use the camera module's own driving mechanism to drive the lens to move along the optical axis of the lens to change the focal position of the lens so that the camera module can capture a clear image.

[0071] Optical image stabilization (OIS): refers to the use of optical components, such as lens settings, in imaging instruments such as camera modules to avoid or reduce instrument jitter in the process of capturing optical signals, thereby improving image quality. When implementing optical image stabilization, the overall jitter of the camera module is generally detected, and the lens is moved in the opposite direction in real time to offset or compensate for the jitter of the camera module to ensure a clearer shooting effect.

[0072] Shape memory alloy (SMA) wire: an actuating wire formed by a material having a shape memory effect through thermoelasticity and martensitic phase transformation and its inversion. The shape memory alloy wire can undergo phase change when the temperature changes, thereby changing the stress state. At low temperatures, the shape memory alloy wire is in the martensitic phase; when the temperature rises, the shape memory alloy wire transforms from the martensitic phase to the austenitic phase, and deforms and shrinks. Therefore, an electric current can be passed through the shape memory alloy wire, and the heating effect of the electric current can be used to heat the shape memory alloy wire, thereby realizing the contraction deformation of the shape memory alloy wire. When no current is passed through the shape memory alloy wire, the shape memory alloy wire can return to its original state. In this way, the deformation of the shape memory alloy wire when the power-on state changes can be used to drive the lens or autofocus motor and other components to move, so that the shape memory alloy wire can be used to realize optical image stabilization of the camera module.

[0073] The embodiment of the present application provides an electronic device, which may include but is not limited to a mobile phone, a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a point of sales (POS) machine, a personal digital assistant (PDA), a wearable device, a virtual reality device, etc. The electronic device may be a foldable device, for example, a foldable mobile phone. The electronic device may also be a non-foldable device, for example, a straight-plate mobile phone. The embodiment of the present application takes the electronic device as a straight-plate mobile phone as an example for explanation.

[0074] Figure 1 An exploded schematic diagram of an electronic device provided in an embodiment of the present application.

[0075] like Figure 1 As shown, in the embodiment of the present application, the electronic device includes a housing 100 and a camera module 300, wherein the camera module 300 is disposed in the housing 100 and is used to capture images. The electronic device may include one or more camera modules 300.

[0076] In some examples, the electronic device may further include a display screen 200 , which is disposed on the housing 100 , and the display screen 200 and the housing 100 are used to enclose a device installation cavity, and the camera module 300 is disposed in the device installation cavity formed by the display screen 200 and the housing 100 .

[0077] In other examples, the electronic device may also include a housing 100 instead of a display screen 200 . The housing 100 may be self-enclosed to form a device installation cavity, and the camera module 300 is disposed in the device installation cavity formed by the housing 100 itself.

[0078] The following description will be made by taking an electronic device including a display screen 200 and a housing 100 as an example.

[0079] Exemplarily, the housing 100 may include a middle frame 120 and a back cover 110 , the back cover 110 and the display screen 200 are respectively covered on two sides of the middle frame 120 , and the back cover 110 , the middle frame 120 and the display screen 200 are surrounded to form a device installation cavity.

[0080] In some examples, the middle frame 120 and the back cover 110 may be separate structures, and the middle frame 120 and the back cover 110 may be fixedly connected by bonding, snapping, fastener connection, etc.

[0081] In some other examples, the middle frame 120 and the back cover 110 may also be an integral structure, that is, the middle frame 120 and the back cover 110 may be integrated into one structural component.

[0082] The electronic device further includes a mainboard 400 and a battery 500, both of which are disposed in the housing 100, and the battery 500 is electrically connected to the mainboard 400 and the camera module 300, and the battery 500 is used to supply power to the mainboard 400 and the camera module 300. The mainboard 400 is electrically connected to the camera module 300, and the mainboard 400 is used to control the camera module 300.

[0083] Exemplarily, the camera module 300 may be electrically connected to the battery 500 via the mainboard 400 , and the battery 500 may supply power to the camera module 300 via the mainboard 400 .

[0084] In some examples, the electronic device may include a front camera module 300a, which is a camera module 300 disposed on the front of the electronic device, and the front camera module 300a may be used to capture external images of the front of the electronic device. Through the front camera module 300a, the electronic device may realize functions such as self-portraits and video calls.

[0085] Exemplarily, the front camera module 300 a may be disposed on one side of the display screen 200 , and the display screen 200 has a light-transmitting portion, and light outside the display screen 200 may enter the front camera module 300 a through the light-transmitting portion of the display screen 200 .

[0086] In some examples, the electronic device may include a rear camera module 300b, which is a camera module 300 disposed on the back of the electronic device. The rear camera module 300b may be used to capture external images of the back of the electronic device.

[0087] Exemplarily, the rear camera module 300 b may be disposed on one side of the rear cover 110 , and the rear cover 110 has a light-transmitting hole, and light from the outside of the rear cover 110 may enter the rear camera module 300 b through the light-transmitting hole of the rear cover 110 .

[0088] Figure 2 A cross-sectional schematic diagram of a camera module provided in an embodiment of the present application.

[0089] like Figure 2 As shown, in the embodiment of the present application, the camera module 300 includes a lens 310, a motor system 320, a module circuit board 330 and a photosensitive element 340. The module circuit board 330 is fixedly disposed in the housing 100. For example, the module circuit board 330 can be fixedly connected to the mainboard 400 or the middle frame 120, and the module circuit board 330 is electrically connected to the mainboard 400 and the battery 500.

[0090] Exemplarily, the module circuit board 330 may be electrically connected to the battery 500 through the main board 400 .

[0091] The motor system 320 is disposed on the module circuit board 330 and is electrically connected to the module circuit board 330 . The battery 500 can supply power to the motor system 320 through the module circuit board 330 , and the mainboard 400 can control the motor system 320 through the module circuit board 330 .

[0092] The photosensitive element 340 is arranged on the module circuit board 330 and is electrically connected to the module circuit board 330. The photosensitive element 340 is located on the image side of the lens 310. The light from the object side of the lens 310 passes through the lens 310 and then hits the photosensitive element 340, so that the photosensitive element 340 can collect the light from the object side of the lens 310. The photosensitive element 340 can exchange signals with the main board 400 through the module circuit board 330.

[0093] The object side of the lens 310 refers to the side where the object to be photographed is located, with the lens 310 as the boundary.

[0094] The image side of the lens 310 refers to the side where the image of the object is located with the lens 310 as the boundary.

[0095] The photosensitive element 340 may also be called an image sensor. The photosensitive element 340 may be a charge coupled device (CCD), a complementary metal-oxide semiconductor (CMOS), or other devices capable of realizing a photoelectric conversion function.

[0096] Figure 3 An exploded schematic diagram of a motor system provided in an embodiment of the present application. In the figure, the x direction is the first direction, the y direction is the second direction, and the z direction is the height direction of the motor system 320. The first direction and the second direction are both perpendicular to the height direction of the motor system 320, and the first direction is perpendicular to the second direction. Exemplarily, the optical axis direction of the lens 310 is the same as the height direction of the motor system 320.

[0097] like Figure 3 As shown, in the embodiment of the present application, the motor system 320 includes an autofocus motor, the autofocus motor includes an autofocus motor base 1000 and an autofocus movable component 6000, the autofocus movable component 6000 is arranged on the autofocus motor base 1000, and the lens 310 is arranged on the autofocus movable component 6000, and the autofocus motor base 1000 can drive the autofocus movable component 6000 to move along the optical axis direction of the lens 310 to realize autofocus of the camera module 300.

[0098] The motor system 320 further includes an optical image stabilization base 2000 and a shape memory alloy wire group 3000, and the shape memory alloy wire group 3000 includes a plurality of shape memory alloy wires 3100. The optical image stabilization base 2000 is disposed on the module circuit board 330, and the auto focus motor base 1000 is disposed on the optical image stabilization base 2000, so that the auto focus motor base 1000 is disposed on the module circuit board 330 through the optical image stabilization base 2000. The shape memory alloy wire group 3000 is used to drive the auto focus motor base 1000 to move relative to the optical image stabilization base 2000, so that the auto focus motor base 1000 drives the auto focus movable component 6000 and the lens 310 to move relative to the optical image stabilization base 2000, so as to offset or compensate for the shaking of the camera module 300, thereby realizing the optical image stabilization of the camera module 300.

[0099] For example, the deformation of each shape memory alloy wire 3100 can be controlled by controlling the current passed into each shape memory alloy wire 3100 , thereby driving the auto-focus motor base 1000 .

[0100] The autofocus motor also includes a limit member 6100, which is fixed on the autofocus motor base 1000. The limit member 6100 is arranged on the side of the autofocus movable component 6000 away from the module circuit board 330. The limit member 6100 is used to limit the position of the autofocus movable component 6000 moving along the optical axis direction of the lens 310 in a direction away from the module circuit board 330.

[0101] In the related art, the motor system also includes a reed, which is a conductive part. The reed is arranged on the side of the optical image stabilization base away from the module circuit board. The optical image stabilization base is made of metal. One end of the shape memory alloy wire group is fixed to and electrically connected to the optical image stabilization base, and the other end of the shape memory alloy wire group is fixed to and electrically connected to the reed. The autofocus motor base can be fixed to the side of the reed away from the optical image stabilization base by bonding or other means. After the shape memory alloy wire group is powered on, the reed can be pulled and deformed. The deformed reed can drive the autofocus motor base to move, thereby realizing optical image stabilization of the camera module.

[0102] However, in the related art, the deformation of the reed can easily lead to debonding between the autofocus motor base and the reed, making it easy for the autofocus motor to detach from the reed, and for the shape memory alloy wire to be clamped in the crack position between the autofocus motor base and the reed. In addition, the edge of the reed connected to the shape memory alloy wire group is relatively flat and thin, and the shape memory alloy pulling the reed will cause the reed to deform significantly. When the reed and the shape memory alloy wire are deformed, the shape memory alloy wire is easy to contact the reed, making it easy for the reed to cause problems such as hanging and cutting the shape memory alloy wire. In addition, the reed is easy to make electrical contact with other conductive parts (for example, the optical image stabilization base), making the motor system prone to short circuits and other problems. In summary, in the related art, the failure rate of the motor system is relatively high. In addition, the motor system in the related art has many components, a relatively complex structure, many assembly steps, and a relatively high assembly difficulty.

[0103] Figure 4 A cross-sectional schematic diagram of a motor system provided in an embodiment of the present application.

[0104] like Figure 4 As shown, based on this, in an embodiment of the present application, the optical image stabilization base 2000 has a first surface 2111, and the first surface 2111 is located on one side of the optical image stabilization base 2000 in the height direction of the motor system 320. The autofocus motor base 1000 includes a first insulating body 1100, and the first insulating body 1100 has a second surface 1111. The first surface 2111 is opposite to the second surface 1111, and the first surface 2111 and the second surface 1111 are slidably matched.

[0105] The optical image stabilization base 2000 includes a second metal structure 2200 , and the second metal structure 2200 is electrically connected to the module circuit board 330 .

[0106] Figure 5 A schematic diagram of a first metal structure provided in an embodiment of the present application, Figure 6 A schematic diagram of an autofocus motor base of a motor system provided in an embodiment of the present application.

[0107] like Figure 5 , Figure 6As shown, the autofocus motor base 1000 also includes a first metal structure 1200, the first metal structure 1200 is electrically connected to the module circuit board 330, and the first metal structure 1200 and the first insulating body 1100 are an integral structure, that is, the first metal structure 1200 and the first insulating body 1100 are integrated into one structural member. The first metal structure 1200 includes a first conductive portion 1210 and a first connecting portion 1220, the first connecting portion 1220 is electrically connected to the first conductive portion 1210, the first conductive portion 1210 is enclosed in the first insulating body 1100, and the first connecting portion 1220 is exposed on the surface of the first insulating body 1100.

[0108] One end of the shape memory alloy wire group 3000 is fixed to and electrically connected with the first connection portion 1220 , and the other end of the shape memory alloy wire group 3000 is fixed to and electrically connected with the second metal structure 2200 .

[0109] In this way, the two ends of the shape memory alloy wire group 3000 are electrically connected to the first connection part 1220 and the second metal structure 2200 respectively, and the two ends of the shape memory alloy wire group 3000 can form a conductive loop through the first metal structure 1200 and the second metal structure 2200 respectively, so as to realize the power supply of the shape memory alloy wire group 3000. The two ends of the shape memory alloy wire group 3000 are fixed to the first connection part 1220 and the second metal structure 2200 respectively, and the first surface 2111 and the second surface 1111 are slidably matched. The deformation of the shape memory alloy wire group 3000 when the power-on state changes can be used to drive the autofocus motor base 1000 to move relative to the optical image stabilization base 2000 to realize the optical image stabilization of the camera module 300.

[0110] The first metal structure 1200 for electrically connecting to the shape memory alloy wire group 3000 is an integrated structure with the first insulating body 1100, so that there is no need to set other structural parts such as springs between the optical image stabilization base 2000 and the autofocus motor base 1000 for forming a conductive circuit with the shape memory alloy wire group 3000, which helps to reduce the components of the motor system 320, making the structure of the motor system 320 simpler, reducing the assembly steps, and making assembly easier.

[0111] The first metal structure 1200 for electrically connecting to the shape memory alloy wire group 3000 is an integral structure with the first insulating body 1100. The first metal structure 1200 and the first insulating body 1100 are firmly combined, so that the first metal structure 1200 and the first insulating body 1100 are not easily separated, and the problems such as the auto focus motor falling off and the shape memory alloy wire 3100 being clamped in the crack position between the auto focus motor base 1000 and the structural member electrically connected to the shape memory alloy wire group 3000 are not easy to occur. In addition, the auto focus motor base 1000 connected to the shape memory alloy wire group 3000 is not easy to deform, and the edge is often thick. When the shape memory alloy wire 3100 is deformed and pulls the auto focus motor base 1000 to move, the shape memory alloy wire 3100 is not easy to hang or cut. In addition, the first metal structure 1200 for electrically connecting to the shape memory alloy wire group 3000 is exposed to a small extent on the surface of the first insulating body 1100, so that the first metal structure 1200 for electrically connecting to the shape memory alloy wire group 3000 is not easy to make electrical contact with other conductive components, which helps to reduce the risk of problems such as short circuits in the motor system 320. Therefore, the solution provided in the embodiment of the present application helps to reduce the failure rate of the motor system 320.

[0112] For example, the first insulating body 1100 may be made of plastic material, and the first metal structure 1200 and the first insulating body 1100 may be formed into an integrated structure by insert molding.

[0113] Exemplarily, one end of the shape memory alloy wire group 3000 is electrically connected to the positive electrode of the module circuit board 330 and one of the negative electrodes of the module circuit board 330 through the first metal structure 1200, and the other end of the shape memory alloy wire group 3000 is electrically connected to the positive electrode of the module circuit board 330 and the other of the negative electrodes of the module circuit board 330 through the second metal structure 2200.

[0114] Exemplarily, the first metal structure 1200 also includes a second connecting portion 1230, which is electrically connected to the first conductive portion 1210. The second connecting portion 1230 is exposed on the surface of the first insulating body 1100 and can be electrically connected to the conductive member outside the first insulating body 1100 through the second connecting portion 1230, so that the electrical connection between the first metal structure 1200 and the conductive member outside the first insulating body 1100 is more convenient, and it is easy for the shape memory alloy wire group 3000 to form a conductive loop through the first metal structure 1200.

[0115] Exemplarily, the second connection portion 1230 may be electrically connected to the module circuit board 330 .

[0116] Exemplarily, the first metal structure 1200 may include one or more focus base electrode traces 1240, each of the focus base electrode traces 1240 includes a first conductive portion 1210, a first connecting portion 1220 and a second connecting portion 1230, each focus base electrode trace 1240 may include one or more first connecting portions 1220, and each first connecting portion 1220 may be fixed to and electrically connected to one or more shape memory alloy wires 3100.

[0117] For example, the first metal structure 1200 may include two focus base electrode traces 1240 , wherein one focus base electrode trace 1240 is a first focus base electrode trace 1240 a , and the other focus base electrode trace 1240 is a second focus base electrode trace 1240 b . The first focus base electrode trace 1240a and the second focus base electrode trace 1240b each include a first conducting portion 1210, a first connecting portion 1220 and a second connecting portion 1230. The first connecting portion 1220 of the first focus base electrode trace 1240a and the first connecting portion 1220 of the second focus base electrode trace 1240b are symmetrically arranged relative to the center of the auto focus motor base 1000. Some shape memory alloy wires 3100 in the shape memory alloy wire group 3000 are fixed to and electrically connected with the first connecting portion 1220 of the first focus base electrode trace 1240a, and some shape memory alloy wires 3100 in the shape memory alloy wire group 3000 are fixed to and electrically connected with the first connecting portion 1220 of the second focus base electrode trace 1240b.

[0118] Figure 7 A schematic diagram of an autofocus motor base of another motor system provided in an embodiment of the present application.

[0119] like Figure 7 As shown, and see Figure 6 In some possible implementations, the first connection portion 1220 is provided with a movable claw 7700, the movable claw 7700 is located outside the first insulating body 1100, the movable claw 7700 is fixed to and electrically connected with the first connection portion 1220, and the end of the shape memory alloy wire group 3000 is fixed to and electrically connected with the movable claw 7700, so that the end of the shape memory alloy wire group 3000 is fixed to and electrically connected with the first connection portion 1220 through the movable claw 7700. In this way, it is easier to firmly connect the shape memory alloy wire group 3000 with the movable claw 7700, which is conducive to firmly fixing and electrically connecting the shape memory alloy wire group 3000 with the first connection portion 1220.

[0120] Exemplarily, the end of the shape memory alloy wire group 3000 can be clamped and fixed with the movable claw 7700 .

[0121] Exemplarily, the movable claw 7700 can be welded to the first connection portion 1220 , and the movable claw 7700 is attached to the surface of the first connection portion 1220 .

[0122] In some examples where the first metal structure 1200 includes a first focus base electrode trace 1240a and a second focus base electrode trace 1240b, the movable claw 7700 provided on the first connection portion 1220 of the first focus base electrode trace 1240a is the first movable claw 7700a, and some shape memory alloy wires 3100 in the shape memory alloy wire group 3000 are fixed and electrically connected to the first connection portion 1220 of the first focus base electrode trace 1240a via the first movable claw 7700a, and the movable claw 7700 provided on the first connection portion 1220 of the second focus base electrode trace 1240b is the second movable claw 7700b, and some shape memory alloy wires 3100 in the shape memory alloy wire group 3000 are fixed and electrically connected to the first connection portion 1220 of the second focus base electrode trace 1240b via the second movable claw 7700b.

[0123] like Figure 3 , Figure 4 As shown, in some possible implementations, the motor system 320 further includes a metal base 4000 and a metal cover 5000. The metal cover 5000 is covered on the metal base 4000, and the metal cover 5000 and the metal base 4000 are surrounded to form an assembly space, and the autofocus motor base 1000, the optical image stabilization base 2000 and the shape memory alloy wire group 3000 are all arranged in the assembly space, and the side of the optical image stabilization base 2000 away from the second surface 1111 is fixedly connected to the metal base 4000, and the metal base 4000 is fixedly arranged on the module circuit board 330, so that the optical image stabilization base 2000 is fixedly arranged on the module circuit board 330 through the metal base 4000.

[0124] In this way, the metal base 4000 and the metal cover 5000 can play the role of electromagnetic shielding, which can reduce the mutual interference inside and outside the assembly space. In addition, by setting the metal base 4000, the material of the metal base 4000 and the metal cover 5000 is the same or similar, which facilitates the assembly of the metal cover 5000. In addition, by setting the metal base 4000, it is also convenient to assemble the insulating body and other structures on the module circuit board 330, which facilitates the assembly of the optical image stabilization base 2000 on the module circuit board 330, and can reduce the restrictions on the material of the optical image stabilization base 2000.

[0125] Exemplarily, the auto-focus movable component 6000 and the limiting member 6100 are both disposed in the assembly space.

[0126] like Figure 3 , Figure 4As shown, in some possible implementations, at least one of the autofocus motor base 1000 and the optical image stabilization base 2000 includes a magnetic member 7300, and the magnetic member 7300 is magnetically attracted to the first metal structure 1200 or the second metal structure 2200 to fix the autofocus motor base 1000 and the optical image stabilization base 2000.

[0127] In this way, through the magnetic attraction between the magnetic member 7300 and the first metal structure 1200 or the second metal structure 2200, it is convenient to make the shape memory alloy wire group 3000 overcome the magnetic attraction force to pull the autofocus motor base 1000 relative to the optical image stabilization base 2000 to achieve optical image stabilization on the basis of fixing the autofocus motor base 1000 and the optical image stabilization base 2000. In addition, compared with the solution that the autofocus motor base 1000 and the optical image stabilization base 2000 are pre-stressed by the spring arranged between the two, the magnetic attraction force generated by the magnetic member 7300 is more consistent with the elastic restoring force of the spring, and is more stable, so that the pre-stress of the autofocus motor base 1000 on the optical image stabilization base 2000 is more consistent and stable. In addition, the first metal structure 1200 or the second metal structure 2200 for powering on is used to cooperate with the magnetic member 7300 to form a fixing structure for fixing the autofocus motor base 1000 and the optical image stabilization base 2000, which can make the overall structure of the motor system 320 simpler.

[0128] Exemplarily, the motor system 320 includes a plurality of magnetic members 7300 spaced apart along the circumference of the autofocus motor base 1000, so that a plurality of circumferential positions of the autofocus motor base 1000 can be magnetically attracted to the optical image stabilization base 2000, thereby improving the stability between the autofocus motor base 1000 and the optical image stabilization base 2000 when they are fixed or moved relative to each other.

[0129] For example, multiple magnetic parts 7300 are symmetrically arranged relative to the center of the autofocus motor base 1000, so that the magnetic attraction between various parts of the autofocus motor base 1000 and the optical image stabilization base 2000 is more balanced, and the fixation and relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000 are more stable.

[0130] Exemplarily, the magnetic member 7300 may be a magnet.

[0131] In some examples, the auto-focus motor base 1000 includes a magnetic member 7300 , and the magnetic member 7300 of the auto-focus motor base 1000 is magnetically attracted to the second metal structure 2200 .

[0132] In some examples, the optical image stabilization base 2000 includes a magnetic member 7300 , and the magnetic member 7300 of the optical image stabilization base 2000 is magnetically attracted to the first metal structure 1200 .

[0133] like Figure 4 , Figure 6 , Figure 7 As shown, in some possible implementations, at least one of the first surface 2111 and the second surface 1111 is provided with a second groove 7400 , and the magnetic member 7300 is disposed in the second groove 7400 .

[0134] In this way, the assembly of the magnetic member 7300 is relatively convenient. In addition, the distance between the magnetic member 7300 and the magnetically attracted first metal structure 1200 or the second metal structure 2200 is relatively close, and the magnetic attraction between the magnetic member 7300 and the magnetically attracted first metal structure 1200 or the second metal structure 2200 is relatively large, which is conducive to the magnetic attraction fixation between the autofocus motor base 1000 and the optical image stabilization base 2000.

[0135] In some examples, the autofocus motor base 1000 includes a magnetic member 7300 , the first surface 2111 is provided with a second groove 7400 , and the magnetic member 7300 of the autofocus motor base 1000 is disposed in the second groove 7400 of the first surface 2111 .

[0136] In some exemplary embodiments, the optical image stabilization base 2000 includes a magnetic member 7300 , the second surface 1111 is provided with a second groove 7400 , and the magnetic member 7300 of the optical image stabilization base 2000 is disposed in the second groove 7400 on the second surface 1111 .

[0137] In some examples where the autofocus motor base 1000 includes the magnetic member 7300, the magnetic member 7300 may be an integral structure with the first insulating body 1100, and the magnetic member 7300 may be enclosed in the first insulating body 1100. For example, the magnetic member 7300 may be an integral structure with the first insulating body 1100 through in-mold injection molding together with the first metal structure 1200.

[0138] like Figure 4 , Figure 6 , Figure 7 As shown, in some possible embodiments, at least one of the first surface 2111 and the second surface 1111 is provided with a first groove 7100 , a ball 7200 is provided in the first groove 7100 , and the first surface 2111 and the second surface 1111 are slidably matched via the ball 7200 .

[0139] In this way, by means of the ball bearing 7200 disposed between the first surface 2111 and the second surface 1111, the friction between the first surface 2111 and the second surface 1111 can be reduced, which is beneficial to reducing the jitter during relative movement between the optical image stabilization base 2000 and the autofocus motor base 1000, that is, it is beneficial to reduce the jitter of the camera module 300 during optical image stabilization, thereby improving the accuracy and efficiency of optical image stabilization. In addition, the ball bearing 7200 is disposed in the first groove 7100, and the first groove 7100 can limit the position of the ball bearing 7200, so that the ball bearing 7200 is not easy to slide out or fall. In addition, the ball bearing 7200 is disposed in the first groove 7100, and the assembly of the ball bearing 7200 is also relatively easy.

[0140] Exemplarily, a portion of the ball bearing 7200 protrudes from the first groove 7100 , and both ends of the ball bearing 7200 in the height direction of the motor system 320 abut against the first insulating body 1100 and the auto-focus motor base 1000 , respectively.

[0141] Exemplarily, a plurality of balls 7200 may be disposed in each first groove 7100 to reduce the radius of the balls 7200 , thereby reducing the distance between the first surface 2111 and the second surface 1111 .

[0142] In some examples, the ball 7200 may be a ceramic ball, so that the conductive structure is not likely to have a short circuit or other problems due to contact with the ball 7200. In addition, the ball 7200 is not likely to affect the magnetic attraction of the magnetic member 7300.

[0143] In some examples, the second surface 1111 is provided with a first groove 7100 , and the ball 7200 in the first groove 7100 of the second surface 1111 abuts against the first surface 2111 and the groove wall of the first groove 7100 , respectively.

[0144] In some examples, the first surface 2111 is provided with a first groove 7100 , and the ball 7200 in the first groove 7100 of the first surface 2111 abuts against the second surface 1111 and the groove wall of the first groove 7100 , respectively.

[0145] Figure 8 A schematic diagram of a second metal structure provided in an embodiment of the present application.

[0146] like Figure 8As shown, in some possible implementations, the second metal structure 2200 includes a first metal substructure 2210, and the first metal substructure 2210 is fixed and electrically connected to the end of the shape memory alloy wire group 3000. Specifically, the first metal substructure 2210 includes a plurality of anti-shake base electrode traces 2211 corresponding to the plurality of shape memory alloy wires 3100 one by one, the plurality of anti-shake base electrode traces 2211 are insulated from each other, one end of the shape memory alloy wire 3100 is fixed and electrically connected to the corresponding anti-shake base electrode trace 2211, and the other end of the shape memory alloy wire 3100 is fixed and electrically connected to the first connection portion 1220.

[0147] In this way, the number of focus base electrode traces 1240 required to form a conductive loop with multiple different shape memory alloy wires 3100 is small, making it easier to electrically connect the focus base electrode traces 1240 that are far away from the module circuit board 330 and can move relative to the module circuit board 330 with the module circuit board 330. In addition, it is also beneficial to save space on the auto-focus motor base 1000 and to arrange other conductive structures on the auto-focus motor base 1000.

[0148] Exemplarily, the first metal substructure 2210 is electrically connected to the module circuit board 330 , that is, each anti-shake base electrode trace 2211 is electrically connected to the module circuit board 330 .

[0149] Exemplarily, the plurality of anti-shake base electrode traces 2211 are spaced apart from each other so that the plurality of anti-shake base electrode traces 2211 are insulated from each other.

[0150] One of the anti-shake base electrode trace 2211 and the focus base electrode trace 1240 is a positive trace, that is, one of the anti-shake base electrode trace 2211 and the focus base electrode trace 1240 is electrically connected to the positive electrode of the module circuit board 330. The other of the anti-shake base electrode trace 2211 and the focus base electrode trace 1240 is a negative trace, that is, the other of the anti-shake base electrode trace 2211 and the focus base electrode trace 1240 is electrically connected to the negative electrode of the module circuit board 330, so that the shape memory alloy wire 3100 can form a conductive loop through the anti-shake base electrode trace 2211 and the focus base electrode trace 1240 electrically connected at both ends.

[0151] For example, the shape memory alloy wire group 3000 may include four shape memory alloy wires 3100, and the four shape memory alloy wires 3100 are respectively a first shape memory alloy wire 3100a, a second shape memory alloy wire 3100b, a third shape memory alloy wire 3100c and a fourth shape memory alloy wire 3100d (eg, Figure 3As shown in the figure, the first shape memory alloy wire 3100a, the second shape memory alloy wire 3100b, the third shape memory alloy wire 3100c and the fourth shape memory alloy wire 3100d are arranged along the circumference of the autofocus motor base 1000, the second shape memory alloy wire 3100b and the fourth shape memory alloy wire 3100d are respectively located on both sides of the lens 310 in the first direction, and the first shape memory alloy wire 3100a and the third shape memory alloy wire 3100c are respectively located on both sides of the lens 310 in the second direction.

[0152] The first metal substructure 2210 includes four anti-shake base electrode traces 2211, which are respectively a first anti-shake base electrode trace 2211a, a second anti-shake base electrode trace 2211b, a third anti-shake base electrode trace 2211c and a fourth anti-shake base electrode trace 2211d. The first anti-shake base electrode trace 2211a, the second anti-shake base electrode trace 2211b, the third anti-shake base electrode trace 2211c and the fourth anti-shake base electrode trace 2211d are insulated from each other.

[0153] One end of the first anti-shake base electrode trace 2211a is electrically connected to the module circuit board 330, the other end of the first anti-shake base electrode trace 2211a is fixed and electrically connected to one end of the first shape memory alloy wire 3100a, and the other end of the first shape memory alloy wire 3100a is fixed and electrically connected to the first connecting portion 1220.

[0154] One end of the second anti-shake base electrode trace 2211b is electrically connected to the module circuit board 330, the other end of the second anti-shake base electrode trace 2211b is fixed and electrically connected to one end of the second shape memory alloy wire 3100b, and the other end of the second shape memory alloy wire 3100b is fixed and electrically connected to the first connecting part 1220.

[0155] One end of the third anti-shake base electrode trace 2211c is electrically connected to the module circuit board 330, the other end of the third anti-shake base electrode trace 2211c is fixed and electrically connected to one end of the third shape memory alloy wire 3100c, and the other end of the third shape memory alloy wire 3100c is fixed and electrically connected to the first connecting part 1220.

[0156] One end of the fourth anti-shake base electrode trace 2211d is electrically connected to the module circuit board 330, the other end of the fourth anti-shake base electrode trace 2211d is fixed and electrically connected to one end of the fourth shape memory alloy wire 3100d, and the other end of the fourth shape memory alloy wire 3100d is fixed and electrically connected to the first connecting portion 1220.

[0157] For example, one end of the first shape memory alloy wire 3100a away from the first anti-shake base electrode trace 2211a, and one end of the fourth shape memory alloy wire 3100d away from the fourth anti-shake base electrode trace 2211d are both fixed to the first movable claw 7700a and electrically connected, so as to be fixed to and electrically connected to the first connection portion 1220 of the first focus base electrode trace 1240a through the first movable claw 7700a. One end of the second shape memory alloy wire 3100b away from the second anti-shake base electrode trace 2211b, and one end of the third shape memory alloy wire 3100c away from the third anti-shake base electrode trace 2211c are both fixed to and electrically connected to the second movable claw 7700b, so as to be fixed to and electrically connected to the first connection portion 1220 of the second focus base electrode trace 1240b through the second movable claw 7700b.

[0158] Exemplarily, the second metal structure 2200 further includes a grounding trace 2230 for grounding. The grounding trace 2230 is spaced apart from the first metal substructure 2210 so that the grounding trace 2230 is insulated from the first metal substructure 2210 .

[0159] In some possible implementations, the second metal structure 2200 may further include a second metal substructure 2220 , the first metal substructure 2210 is insulated from the second metal substructure 2220 , and the second metal substructure 2220 is electrically connected to the second connection portion 1230 .

[0160] In this way, after the first metal structure 1200 is electrically connected to the second metal substructure 2220 through the second connecting part 1230, the first metal structure 1200 can form a conductive loop through the second metal substructure 2220, and it is more convenient for the shape memory alloy wire group 3000 to form a conductive loop, which facilitates the power supply to the shape memory alloy wire group 3000.

[0161] Exemplarily, the second metal substructure 2220 is electrically connected to the module circuit board 330, one of the first metal substructure 2210 and the second metal substructure 2220 is electrically connected to the positive pole of the module circuit board 330, and the other of the first metal substructure 2210 and the second metal substructure 2220 is electrically connected to the negative pole of the module circuit board 330.

[0162] Illustratively, the first metal substructure 2210 and the second metal substructure 2220 are spaced apart from each other.

[0163] Exemplarily, the second metal substructure 2220 is spaced apart from each anti-shake base electrode trace 2211 , so that the second metal substructure 2220 is insulated from each anti-shake base electrode trace 2211 .

[0164] In the example where the second metal structure 2200 includes the ground trace 2230 , the second metal substructure 2220 is spaced apart from the ground trace 2230 so that the second metal substructure 2220 is insulated from the ground trace 2230 .

[0165] In some examples where the first metal structure 1200 includes a plurality of focus pedestal electrode traces 1240, the second connection portion 1230 of each focus pedestal electrode trace 1240 is electrically connected to the second metal substructure 2220. For example, when the first metal structure 1200 includes a first focus pedestal electrode trace 1240a and a second focus pedestal electrode trace 1240b, the second connection portion 1230 of the first focus pedestal electrode trace 1240a and the second connection portion 1230 of the second focus pedestal electrode trace 1240b are both electrically connected to the second metal substructure 2220.

[0166] Fig. 9 A schematic diagram of an optical image stabilization base of a motor system provided in an embodiment of the present application.

[0167] like Fig. 9 As shown, and see Figure 8 In some possible implementations, the optical image stabilization base 2000 further includes a second insulating body 2100, the second insulating body 2100 has a first surface 2111, and the second insulating body 2100 and the second metal structure 2200 are an integral structure, that is, the second metal structure 2200 and the second insulating body 2100 are integrated into one structural member. The second metal structure 2200 includes a second conductive portion 2212 and a third connecting portion 2213, the second conductive portion 2212 is enclosed in the second insulating body 2100, the third connecting portion 2213 is exposed on the surface of the second insulating body 2100, the third connecting portion 2213 is electrically connected to the second conductive portion 2212, and the end of the shape memory alloy wire group 3000 is fixed to and electrically connected to the third connecting portion 2213.

[0168] In this way, the second conducting part 2212 is covered by the second insulating body 2100, and the problem of wire clamping caused by the shape memory alloy wire 3100 being clamped in the gap at the second conducting part 2212 is not easy to occur. In addition, the problem of short circuit caused by the conductive particles being clamped in the gap at the second conducting part 2212 is not easy to occur. In addition, the problem of cutting wire caused by the shape memory alloy wire 3100 contacting the thin edge of the second conducting part 2212 is not easy to occur. Furthermore, the second metal structure 2200 for electrically connecting to the shape memory alloy wire group 3000 is less exposed on the surface of the second insulating body 2100, so that the second metal structure 2200 for electrically connecting to the shape memory alloy wire group 3000 is not easy to come into electrical contact with other conductive parts, which is conducive to reducing the risk of problems such as short circuits in the motor system 320. Therefore, it is conducive to further reducing the failure rate of the motor system 320.

[0169] Exemplarily, the second insulating body 2100 may be made of plastic material, and the second metal structure 2200 and the second insulating body 2100 may be formed into an integral structure by in-mold injection molding.

[0170] Exemplarily, a side of the second insulating body 2100 facing away from the second surface 1111 is fixedly connected to the metal base 4000 .

[0171] Illustratively, the first metal substructure 2210 includes a second conductive portion 2212 and a third connecting portion 2213 .

[0172] Exemplarily, each anti-shake base electrode trace 2211 includes a second conducting portion 2212 and a third connecting portion 2213 .

[0173] Exemplarily, the third connection portion 2213 of each anti-shake base electrode trace 2211 is located at the end of the anti-shake base trace.

[0174] In the example where the first metal substructure 2210 includes a first anti-shake base electrode trace 2211a, a second anti-shake base electrode trace 2211b, a third anti-shake base electrode trace 2211c and a fourth anti-shake base electrode trace 2211d, the third connection portion 2213 of the first anti-shake base electrode trace 2211a is fixed to and electrically connected to one end of the first shape memory alloy wire 3100a, and one end of the first anti-shake base electrode trace 2211a away from the third connection portion 2213 of the first anti-shake base electrode trace 2211a is exposed from the second insulating body 2100 and is electrically connected to the module circuit board 330. The third connection portion 2213 of the second anti-shake base electrode trace 2211b is fixed and electrically connected to one end of the second shape memory alloy wire 3100b, and one end of the second anti-shake base electrode trace 2211b away from the third connection portion 2213 of the second anti-shake base electrode trace 2211b is exposed from the second insulating body 2100 and is electrically connected to the module circuit board 330. The third connection portion 2213 of the third anti-shake base electrode trace 2211c is fixed and electrically connected to one end of the third shape memory alloy wire, and one end of the third anti-shake base electrode trace 2211c away from the third connection portion 2213 of the third anti-shake base electrode trace 2211c is exposed from the second insulating body 2100 and is electrically connected to the module circuit board 330. The third connection portion 2213 of the fourth anti-shake base electrode trace 2211d is fixed and electrically connected to one end of the fourth shape memory alloy wire 3100d, and one end of the fourth anti-shake base electrode trace 2211d away from the third connection portion 2213 of the fourth anti-shake base electrode trace 2211d is exposed from the second insulating body 2100 and is electrically connected to the module circuit board 330.

[0175] In some examples, the second metal structure 2200 may further include other metal substructures for enhancing structural strength.

[0176] Fig.10 A schematic diagram of an optical image stabilization base of another motor system provided in an embodiment of the present application, Fig.11 A schematic diagram of the connection between a second metal structure and a fixed claw of a motor system provided in an embodiment of the present application.

[0177] like Fig.10 , Fig.11 As shown, in some possible implementations, the third connection portion 2213 is provided with a fixing claw 7600, the fixing claw 7600 is located outside the second insulating body 2100, the fixing claw 7600 is fixed to and electrically connected with the third connection portion 2213, and the end of the shape memory alloy wire group 3000 is fixed to and electrically connected with the fixing claw 7600, so that the end of the shape memory alloy wire group 3000 is fixed to and electrically connected with the third connection portion 2213 through the fixing claw 7600. In this way, it is easier to firmly connect the shape memory alloy wire group 3000 with the fixing claw 7600, which is conducive to firmly fixing and electrically connecting the shape memory alloy wire group 3000 with the third connection portion 2213.

[0178] For example, the end of the shape memory alloy wire group 3000 can be clamped and fixed with the fixing claw 7600 .

[0179] Exemplarily, the fixing claw 7600 may be welded to the third connection portion 2213 , and the fixing claw 7600 is attached to the surface of the third connection portion 2213 .

[0180] In the example where the first metal substructure 2210 includes a first anti-shake base electrode trace 2211a, a second anti-shake base electrode trace 2211b, a third anti-shake base electrode trace 2211c, and a fourth anti-shake base electrode trace 2211d, the fixing claw 7600 provided on the third connecting portion 2213 of the first anti-shake base electrode trace 2211a is a first fixing claw 7600a, and the first fixing claw 7600a is connected to the first anti-shake base electrode trace 2211d. The third connection portion 2213 of 2211a is fixed and electrically connected, and the first shape memory alloy wire 3100a is fixed and electrically connected to the first fixed claw 7600a. For example, the first shape memory alloy wire 3100a can be clamped with the first fixed claw 7600a, so that the first shape memory alloy wire 3100a is fixed and electrically connected to the third connection portion 2213 of the first anti-shake base electrode trace 2211a through the first fixed claw 7600a.

[0181] The fixing claw 7600 provided on the third connection portion 2213 of the second anti-shake base electrode routing 2211b is the second fixing claw 7600b. The second fixing claw 7600b is fixed to and electrically connected with the third connection portion 2213 of the second anti-shake base electrode routing 2211b. The second shape memory alloy wire 3100b is fixed to and electrically connected with the second fixing claw 7600b. For example, the second shape memory alloy wire 3100b can be clamped with the second fixing claw 7600b, so that the second shape memory alloy wire 3100b is fixed to and electrically connected with the third connection portion 2213 of the second anti-shake base electrode routing 2211b through the second fixing claw 7600b.

[0182] The fixing claw 7600 provided on the third connecting portion 2213 of the third anti-shake base electrode routing 2211c is the third fixing claw 7600c. The third fixing claw 7600c is fixed to and electrically connected with the third connecting portion 2213 of the third anti-shake base electrode routing 2211c. The third shape memory alloy wire 3100c is fixed to and electrically connected with the third fixing claw 7600c. For example, the third shape memory alloy wire 3100c can be clamped with the third fixing claw 7600c, so that the third shape memory alloy wire 3100c is fixed to and electrically connected with the third connecting portion 2213 of the third anti-shake base electrode routing 2211c through the third fixing claw 7600c.

[0183] The fixed claw 7600 provided on the third connection portion 2213 of the fourth anti-shake base electrode routing 2211d is the fourth fixed claw 7600d. The fourth fixed claw 7600d is fixed to and electrically connected with the third connection portion 2213 of the fourth anti-shake base electrode routing 2211d. The fourth shape memory alloy wire 3100d is fixed to and electrically connected with the fourth fixed claw 7600d. For example, the fourth shape memory alloy wire 3100d can be clamped with the fourth fixed claw 7600d, so that the fourth shape memory alloy wire 3100d is fixed to and electrically connected with the third connection portion 2213 of the fourth anti-shake base electrode routing 2211d through the fourth fixed claw 7600d.

[0184] Fig.12 A schematic diagram of the connection between an optical image stabilization base, an autofocus motor base, and a shape memory alloy wire group of a motor system provided in an embodiment of the present application.

[0185] like Fig.12 As shown, in some possible implementations, the shape memory alloy wire group 3000 is disposed on a side of the optical image stabilization base 2000 that is away from the second surface 1111 .

[0186] In this way, the shape memory alloy wire group 3000 is not likely to affect the relative movement of the optical image stabilization base 2000 and the autofocus motor base 1000, and the relative movement of the optical image stabilization base 2000 and the autofocus motor base 1000 is not likely to cause problems such as hanging or clamping of the shape memory alloy wire group 3000.

[0187] Exemplarily, the movable claw 7700 and the fixed claw 7600 are both located on a side of the optical image stabilization base 2000 facing away from the second surface 1111 .

[0188] Exemplarily, the shape memory alloy wire group 3000 , the movable claw 7700 , and the fixed claw 7600 are all located on a side of the second insulating body 2100 facing away from the second surface 1111 .

[0189] like Fig.12 As shown, and see Figure 6 , Figure 7 In some possible embodiments, the first insulating body 1100 includes a first main body portion 1110 and a first boss portion 1120, the first main body portion 1110 is overlapped on the first surface 2111, the first main body portion 1110 has a second surface 1111, the first boss portion 1120 is arranged on the second surface 1111, and the first connecting portion 1220 is located at an end of the first boss portion 1120 away from the second surface 1111.

[0190] In this way, the first connection portion 1220 is conveniently disposed on the side of the optical image stabilization base 2000 away from the second surface 1111 , so as to facilitate connection between the shape memory alloy wire group 3000 located on the side of the optical image stabilization base 2000 away from the second surface 1111 and the first connection portion 1220 .

[0191] Exemplarily, the first insulating body 1100 includes two first boss portions 1120, and the two first boss portions 1120 are symmetrically arranged relative to the center of the autofocus motor base 1000. The first connection portion 1220 of the first focus base electrode trace 1240a is located at an end of one of the first boss portions 1120 away from the second surface 1111, and the first connection portion 1220 of the second focus base electrode trace 1240b is located at an end of the other first boss portion 1120 away from the second surface 1111.

[0192] Exemplarily, the first movable claw 7700a is disposed at the first boss portion 1120 where the first connection portion 1220 of the first focus base electrode trace 1240a is located. The second movable claw 7700b is disposed at the first boss portion 1120 where the first connection portion 1220 of the second focus base electrode trace 1240b is located.

[0193] like Fig.12 As shown, and see Fig. 9In some possible implementations, the optical image stabilization base 2000 has a hollow portion 2112 , and the first boss portion 1120 is disposed in the hollow portion 2112 .

[0194] In this way, the hollow portion 2112 can be used to allow one end of the first boss portion 1120 away from the second surface 1111 to pass through the side of the optical image stabilization base 2000 away from the second surface 1111, so as to connect the first connection portion 1220 to the shape memory alloy wire group 3000 located on the side of the optical image stabilization base 2000 away from the second surface 1111. In addition, the hollow portion 2112 can also be used to allow the first boss portion 1120 to move relative to the optical image stabilization base 2000, so as to achieve optical image stabilization.

[0195] Illustratively, the second insulating body 2100 has a hollow portion 2112 .

[0196] In some possible implementations, the third connection portion 2213 is located on a side of the second insulating body 2100 away from the second surface 1111 .

[0197] In this way, the shape memory alloy wire group 3000 located at the side of the optical image stabilization base 2000 away from the second surface 1111 is easily connected to the third connection portion 2213 .

[0198] In some possible embodiments, the second insulating body 2100 includes a second main body portion 2110 and a support portion 2120, the second main body portion 2110 has a first surface 2111, the support portion 2120 is arranged on the side of the second main body portion 2110 away from the second surface 1111, and the third connecting portion 2213 is located on the side of the second main body portion 2110 away from the second surface 1111.

[0199] In this way, the support portion 2120 can prop up the second main body portion 2110 to separate out a space for accommodating components such as the shape memory alloy wire group 3000, which is conducive to setting the shape memory alloy wire group 3000 on the side of the optical image stabilization base 2000 away from the second surface 1111.

[0200] Exemplarily, the shape memory alloy wire group 3000 , the movable jaws 7700 , and the fixed jaws 7600 are located in a space surrounded by the second body portion 2110 and the support portion 2120 .

[0201] Exemplarily, a side of the support portion 2120 facing away from the second main body portion 2110 is fixedly connected to the metal base 4000 .

[0202] Fig.13 A schematic diagram of the connection between a first metal structure, a second metal structure, and a shape memory alloy wire group of a motor system provided in an embodiment of the present application.

[0203] like Fig.13 As shown, in some possible implementations, the second metal substructure 2220 and the second connection portion 1230 may be electrically connected via an elastic conductive member 7510 .

[0204] In this way, when the optical image stabilization base 2000 and the autofocus motor base 1000 move relative to each other, the electrical connection between the second metal substructure 2220 and the second connection portion 1230 is maintained. In addition, the elastic conductive member 7510 is retractable, and the redundant part of the elastic conductive member 7510 is not easy to move at will, and it is not easy for the elastic conductive member 7510 to be hooked with other components.

[0205] The second connection portion 1230 of the first focus base electrode trace 1240a and the second connection portion 1230 of the second focus base electrode trace 1240b may be electrically connected to the second metal substructure 2220 through the same or different elastic conductive members 7510. For example, the second connection portion 1230 of the first focus base electrode trace 1240a and the second connection portion 1230 of the second focus base electrode trace 1240b may be electrically connected to the second metal substructure 2220 through the same elastic conductive member 7510, making wiring easier.

[0206] In some other possible implementations, the second metal substructure 2220 and the second connection portion 1230 may be electrically connected via a wire.

[0207] Continue to view Figure 8 As shown, in some possible implementations, the second metal substructure 2220 includes a third conductive portion 2221 and a fourth connecting portion 2222 , and the fourth connecting portion 2222 is electrically connected to the third conductive portion 2221 .

[0208] Fig.14 A schematic diagram of an optical image stabilization base of another motor system provided in an embodiment of the present application, Fig.15 A schematic diagram of an autofocus motor base of another motor system provided in an embodiment of the present application, Fig.16 A schematic diagram of the connection between an autofocus motor base and an optical image stabilization base of a motor system provided in an embodiment of the present application.

[0209] like Figure 13-Figure 16 As shown, in some possible embodiments, the third conductive portion 2221 is enclosed in the second insulating body 2100 , the fourth connecting portion 2222 is exposed on the surface of the second insulating body 2100 , and the second connecting portion 1230 of the first metal structure 1200 is electrically connected to the fourth connecting portion 2222 .

[0210] In this way, the second metal substructure 2220 can be electrically connected to the first metal structure 1200 by exposing the fourth connection portion 2222 on the surface of the second insulating body 2100. The third conductive part 2221 is covered by the second insulating body 2100, and the problem of wire clamping caused by the shape memory alloy wire 3100 being clamped in the gap at the third conductive part 2221 is not easy to occur. In addition, the problem of short circuit caused by the conductive particles being clamped in the gap at the third conductive part 2221 is not easy to occur. In addition, the problem of cutting wire caused by the shape memory alloy wire 3100 contacting the thin edge of the third conductive part 2221 is not easy to occur. Furthermore, the second metal substructure 2220 is less exposed on the surface of the second insulating body 2100, so that the second metal substructure 2220 is not easy to make electrical contact with other conductive parts, which is conducive to reducing the risk of short circuit and other problems in the motor system 320. Therefore, it is conducive to further reducing the failure rate of the motor system 320.

[0211] Exemplarily, the fourth connection portion 2222 is fixed to and electrically connected with the elastic conductive member 7510, so that the fourth connection portion 2222 is electrically connected to the second connection portion 1230 through the elastic conductive member 7510. For example, the middle portion of the elastic conductive member 7510 is fixed to and electrically connected with the fourth connection portion 2222, and both ends of the elastic conductive member 7510 are respectively fixed to and electrically connected with the second connection portion 1230 of the first focus base electrode trace 1240a and the second connection portion 1230 of the second focus base electrode trace 1240b.

[0212] In some possible embodiments, the second insulating body 2100 includes a second boss portion 2130, which is disposed on the first surface 2111, and the second boss portion 2130 and the first main body portion 1110 of the first insulating body 1100 are staggered on the first surface 2111, and the fourth connecting portion 2222 is located at one end of the second boss portion 2130 away from the first surface 2111.

[0213] In this way, the fourth connection part 2222 is located at the end of the second boss part 2130 away from the first surface 2111, which is conducive to reducing the distance between the fourth connection part 2222 and the second connection part 1230 in the height direction of the motor system 320, and is convenient for realizing the connection between the fourth connection part 2222 and the second connection part 1230. In addition, after the fourth connection part 2222 is connected to the second connection part 1230, the optical image stabilization base 2000 can be made to pull the autofocus motor base 1000 less in the height direction of the motor system 320, which is convenient for the relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000. In addition, the second boss part 2130 and the first main body 1110 are staggered on the first surface 2111, which is convenient for the first main body 1110 to slide on the first surface 2111.

[0214] Illustratively, the second connection portion 1230 is located on a side of the first body portion 1110 facing away from the second surface 1111 .

[0215] Fig.17 A schematic diagram of the connection between an autofocus motor base and an optical image stabilization base of another motor system provided in an embodiment of the present application.

[0216] In some possible implementations, the motor system 320 includes: a plurality of elastic members 7500 symmetrically arranged relative to the center of the autofocus motor base 1000. One end of the elastic member 7500 is fixedly connected to the autofocus motor base 1000, and the other end of the elastic member 7500 is fixedly connected to the optical image stabilization base 2000.

[0217] In this way, the autofocus motor base 1000 and the optical image stabilization base 2000 are connected via a plurality of elastic members 7500 which are symmetrically arranged relative to the center of the autofocus motor base 1000. The elastic members 7500 can be used to limit the relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000 so as to center the autofocus motor base 1000. This is beneficial for rotating the autofocus motor base 1000 around the optical axis when performing optical image stabilization, thereby making the autofocus motor base 1000 less prone to eccentricity problems.

[0218] Exemplarily, the motor system 320 may include two elastic members 7500 symmetrically disposed with respect to the center of the auto-focus motor base 1000 .

[0219] In some possible implementations, at least one elastic member 7500 is an elastic conductive member 7510 , that is, the second metal substructure 2220 and the second connecting portion 1230 may be electrically connected via at least one elastic member 7500 .

[0220] In this way, the at least one elastic member 7500 can not only limit the relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000, but also electrically connect the second metal substructure 2220 with the second connection portion 1230, so that the motor system 320 has fewer components. In addition, the influence of the elastic conductive member 7510 that is separately provided to electrically connect the second metal substructure 2220 with the second connection portion 1230 on the relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000 can also be eliminated.

[0221] Exemplarily, the fourth connection portion 2222 of the second metal substructure 2220 is electrically connected to the second connection portion 1230 of the first focus base electrode trace 1240a and the second connection portion 1230 of the second focus base electrode trace 1240b through an elastic member 7500.

[0222] Exemplarily, the second insulating body 2100 includes two second boss portions 2130, and the two second boss portions 2130 are symmetrically arranged relative to the center of the optical image stabilization base 2000. An elastic member 7500 is provided at each of the two second boss portions 2130. The fourth connecting portion 2222 of the second sub-metal structure is located at an end of one of the second boss portions 2130 away from the first surface 2111, and the second elastic member 7500 arranged at the second boss portion 2130 where the fourth connecting portion 2222 is located is an elastic conductive member 7510.

[0223] Fig.18 A schematic diagram of the connection between an autofocus motor and an optical image stabilization base of a motor system provided in an embodiment of the present application.

[0224] like Fig.18 As shown, in some possible embodiments, the motor system 320 also includes a flexible circuit board assembly 8000, one end of the flexible circuit board assembly 8000 is fixed to the optical image stabilization base 2000 and electrically connected to the module circuit board 330, and the other end of the flexible circuit board assembly 8000 is fixed to the autofocus motor base 1000 and electrically connected. The module circuit board 330 can supply power to the autofocus motor base 1000 through the flexible circuit board assembly 8000 to drive the autofocus active component 6000.

[0225] Exemplarily, the autofocus motor base 1000 further includes a driving mechanism (eg, a coil), and the first metal structure 1200 may further include a metal substructure for electrically connecting the driving mechanism to the flexible circuit board assembly 8000 to facilitate supplying power to the driving mechanism.

[0226] Exemplarily, a magnet may be fixedly disposed on the auto-focus movable assembly 6000 , so as to drive the auto-focus movable assembly 6000 to move relative to the auto-focus motor base 1000 through the interaction between the energized coil and the magnet.

[0227] Exemplarily, the motor system 320 may further include a detection device, which is fixedly disposed on the autofocus motor base 1000 and electrically connected to the flexible circuit board assembly 8000 . The detection device may be used to detect the relative position of the autofocus movable assembly 6000 and the autofocus motor base 1000 .

[0228] Exemplarily, the detection device may be disposed on the flexible circuit board assembly 8000 .

[0229] Exemplarily, the detection device may include, but is not limited to, a Hall sensor, a tunnel magnetoresistance sensor (TMR), a displacement sensor, and the like.

[0230] Fig.19 A schematic diagram of the connection between an autofocus motor and an optical image stabilization base of another motor system provided in an embodiment of the present application.

[0231] like Fig.19 As shown, in some possible implementations, the flexible circuit board assembly 8000 includes a first flexible circuit board 8100 and a second flexible circuit board 8200;

[0232] One end of the first flexible circuit board 8100 is fixedly connected to the optical image stabilization base 2000 and electrically connected to the module circuit board 330, and the other end of the first flexible circuit board 8100 is fixedly connected to the autofocus motor base 1000 and electrically connected, and one end of the second flexible circuit board 8200 is fixedly connected to the optical image stabilization base 2000 and electrically connected to the module circuit board 330, and the other end of the second flexible circuit board 8200 is fixedly connected to the autofocus motor base 1000 and electrically connected. One end of the first flexible circuit board 8100 connected to the autofocus motor base 1000 and one end of the second flexible circuit board 8200 connected to the autofocus motor base 1000 are symmetrically arranged relative to the center of the autofocus motor base 1000.

[0233] In this way, when the autofocus motor base 1000 rotates around the center of the autofocus motor base 1000 relative to the optical image stabilization base 2000, the first flexible circuit board 8100 and the second flexible circuit board 8200 can offset the pulling of the autofocus motor base 1000 in the radial direction of the lens 310, which is conducive to the rotation of the autofocus motor base 1000 around the optical axis of the lens 310, so that the autofocus motor base 1000 is not prone to eccentricity. In addition, in the example of centering the autofocus motor base 1000 by the elastic member 7500, the eccentricity of the autofocus motor base 1000 is small when the autofocus motor base 1000 rotates, and the elastic force required by the elastic member 7500 to center the autofocus motor base 1000 is small, which can reduce the requirements for the elastic force provided by the elastic member 7500.

[0234] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0235] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0236] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0237] The term "plurality" in this article refers to two or more than two. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship; in a formula, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0238] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0239] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A motor system (320), characterized in that: include: An autofocus motor base (1000), the autofocus motor base (1000) comprising a first insulating body (1100) and a first metal structure (1200), the first metal structure (1200) and the first insulating body (1100) being an integral structure, the first metal structure (1200) comprising a first conducting part (1210) and a first connecting part (1220), the first conducting part (1210) being enclosed in the first insulating body (1100), the first connecting part (1220) being exposed on the surface of the first insulating body (1100), and the first connecting part (1220) being electrically connected to the first conducting part (1210); An optical image stabilization base (2000), the optical image stabilization base (2000) having a first surface (2111), the first surface (2111) being located on one side of the optical image stabilization base (2000) in the height direction of the motor system (320), the first insulating body (1100) having a second surface (1111), the first surface (2111) being opposite to the second surface (1111), the first surface (2111) being slidably matched with the second surface (1111), and the optical image stabilization base (2000) comprising a second metal structure (2200); A shape memory alloy wire group (3000), one end of the shape memory alloy wire group (3000) is fixed to and electrically connected with the first connecting portion (1220), and the other end of the shape memory alloy wire group (3000) is fixed to and electrically connected with the second metal structure (2200).

2. The motor system (320) according to claim 1, characterized in that: The shape memory alloy wire group (3000) is arranged on a side of the optical image stabilization base (2000) away from the second surface (1111).

3. The motor system (320) according to claim 2, characterized in that: The first insulating body (1100) comprises a first main body portion (1110) and a first boss portion (1120); The first main body portion (1110) is overlapped on the first surface (2111), the first main body portion (1110) has the second surface (1111), the first boss portion (1120) is arranged on the second surface (1111), and the first connecting portion (1220) is located at an end of the first boss portion (1120) away from the second surface (1111).

4. The motor system (320) according to claim 3, characterized in that: The optical image stabilization base (2000) has a hollow portion (2112), and the first boss portion (1120) is inserted into the hollow portion (2112).

5. The motor system (320) according to any one of claims 1 to 4, characterized in that: The first metal structure (1200) further includes a second connecting portion (1230); The second connection portion (1230) is exposed on the surface of the first insulating body (1100), and the second connection portion (1230) is electrically connected to the first conducting portion (1210); The second metal structure (2200) includes a first metal substructure (2210) and a second metal substructure (2220), wherein the first metal substructure (2210) is insulated from the second metal substructure (2220), the first metal substructure (2210) is fixed to and electrically connected to the end of the shape memory alloy wire group (3000), and the second metal substructure (2220) is electrically connected to the second connecting portion (1230).

6. The motor system (320) according to claim 5, characterized in that: The second metal substructure (2220) is electrically connected to the second connecting portion (1230) via an elastic conductive member (7510).

7. The motor system (320) according to claim 5 or 6, characterized in that: The shape memory alloy wire group (3000) includes a plurality of shape memory alloy wires (3100), the first metal substructure (2210) includes a plurality of anti-shake base electrode traces (2211) corresponding one-to-one to the plurality of shape memory alloy wires (3100), the plurality of anti-shake base electrode traces (2211) are insulated from each other, one end of the shape memory alloy wire (3100) is fixed to and electrically connected with the corresponding anti-shake base electrode trace (2211), and the other end of the shape memory alloy wire (3100) is fixed to and electrically connected with the first connecting portion (1220).

8. The motor system (320) according to any one of claims 1 to 7, characterized in that: The optical image stabilization base (2000) further comprises a second insulating body (2100), wherein the second insulating body (2100) has the first surface (2111); The second insulating body (2100) and the second metal structure (2200) are an integral structure, and the second metal structure (2200) includes a second conducting part (2212) and a third connecting part (2213), the second conducting part (2212) is enclosed in the second insulating body (2100), and the third connecting part (2213) is exposed on the surface of the second insulating body (2100), and the third connecting part (2213) is electrically connected to the second conducting part (2212), and the end of the shape memory alloy wire group (3000) is fixed to and electrically connected to the third connecting part (2213).

9. The motor system (320) according to claim 8, characterized in that: The third connection portion (2213) is located on a side of the second insulating body (2100) facing away from the second surface (1111).

10. The motor system (320) according to claim 9, characterized in that: The second insulating body (2100) comprises a second main body portion (2110) and a supporting portion (2120); The second main body portion (2110) has the first surface (2111), the support portion (2120) is arranged on the side of the second main body portion (2110) away from the second surface (1111), and the third connecting portion (2213) is located on the side of the second main body portion (2110) away from the second surface (1111).

11. The motor system (320) according to any one of claims 8 to 10, characterized in that: The first metal substructure (2210) of the second metal structure (2200) includes the second conductive part (2212) and the third connecting part (2213), and the second metal substructure (2220) of the second metal structure (2200) includes the third conductive part (2221) and the fourth connecting part (2222), the third conductive part (2221) is enclosed in the second insulating body (2100), and the fourth connecting part (2222) is exposed on the surface of the second insulating body (2100), and the fourth connecting part (2222) is electrically connected to the third conductive part (2221), and the second connecting part (1230) of the first metal structure (1200) is electrically connected to the fourth connecting part (2222).

12. The motor system (320) according to claim 11, characterized in that The second insulating body (2100) comprises a second boss portion (2130); The second boss portion (2130) is disposed on the first surface (2111), and the second boss portion (2130) and the first main body portion (1110) of the first insulating body (1100) are staggered on the first surface (2111), and the fourth connecting portion (2222) is located at an end of the second boss portion (2130) away from the first surface (2111).

13. The motor system (320) according to any one of claims 1 to 12, characterized in that: At least one of the first surface (2111) and the second surface (1111) is provided with a first groove (7100), a ball (7200) is provided in the first groove (7100), and the first surface (2111) and the second surface (1111) are slidably matched through the ball (7200).

14. The motor system (320) according to any one of claims 1 to 13, characterized in that: At least one of the autofocus motor base (1000) and the optical image stabilization base (2000) comprises a magnetic member (7300), and the magnetic member (7300) is magnetically attracted to the first metal structure (1200) or the second metal structure (2200) so as to fix the autofocus motor base (1000) and the optical image stabilization base (2000).

15. The motor system (320) according to claim 14, characterized in that At least one of the first surface (2111) and the second surface (1111) is provided with a second groove (7400), and the magnetic member (7300) is disposed in the second groove (7400).

16. The motor system (320) according to any one of claims 1 to 15, characterized in that: Also includes a first flexible circuit board (8100) and a second flexible circuit board (8200); One end of the first flexible circuit board (8100) is fixedly connected to the optical image stabilization base (2000), and the other end of the first flexible circuit board (8100) is fixedly connected to the autofocus motor base (1000); one end of the second flexible circuit board (8200) is fixedly connected to the optical image stabilization base (2000), and the other end of the second flexible circuit board (8200) is fixedly connected to the autofocus motor base (1000); One end of the first flexible circuit board (8100) connected to the auto-focus motor base (1000) and one end of the second flexible circuit board (8200) connected to the auto-focus motor base (1000) are symmetrically arranged relative to the center of the auto-focus motor base (1000).

17. The motor system (320) according to any one of claims 1 to 16, characterized in that: Also includes: A plurality of elastic members (7500) arranged symmetrically relative to the center of the autofocus motor base (1000); One end of the elastic member (7500) is fixedly connected to the autofocus motor base (1000), and the other end of the elastic member (7500) is fixedly connected to the optical image stabilization base (2000), and at least one of the elastic members (7500) is an elastic conductive member (7510).

18. The motor system (320) according to any one of claims 1 to 17, characterized in that: It also includes a metal base (4000) and a metal cover (5000); The metal cover shell (5000) is covered on the metal base (4000), and the metal cover shell (5000) and the metal base (4000) are arranged to form an assembly space. The autofocus motor base (1000), the optical image stabilization base (2000) and the shape memory alloy wire group (3000) are all arranged in the assembly space, and the side of the optical image stabilization base (2000) facing away from the second surface (1111) is fixedly connected to the metal base (4000).

19. A camera module (300), characterized in that: It comprises a module circuit board (330) and a motor system (320) as claimed in any one of claims 1 to 18; The optical image stabilization base (2000) of the motor system (320) is arranged on the module circuit board (330), and the first metal structure (1200) of the motor system (320) and the second metal structure (2200) of the motor system (320) are electrically connected to the module circuit board (330).

20. An electronic device, characterized in that: It comprises a housing (100) and a camera module (300) as claimed in claim 19; The camera module (300) is disposed in the housing (100).

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