Motor system, camera module and electronic equipment

Abstract

This application provides a motor system, a camera module, and an electronic device, relating to the field of camera module technology. The motor system includes an autofocus motor base, an optical image stabilization base, and a shape memory alloy wire assembly. The autofocus motor base includes a first insulating body and a first metal structure. The first metal structure includes a first conductive portion and a first connecting portion. The first conductive portion is enclosed within the first insulating body, and the first connecting portion is exposed on the surface of the first insulating body. The optical image stabilization base has a first surface, and the first insulating body has a second surface. The first surface and the second surface are opposite to each other and slide in contact. The optical image stabilization base includes a second metal structure. One end of the shape memory alloy wire assembly is fixed to and electrically connected to the first connecting portion, and the other end of the shape memory alloy wire assembly is fixed to and electrically connected to the second metal structure. This helps reduce the failure rate of the camera module's motor system.

Description

Technical Field

[0001] This application relates to the field of camera module technology, and in particular to a motor system, camera module, and electronic device. Background Technology

[0002] Mobile phones, tablets, and other electronic devices often include camera modules, enabling these devices to take pictures. The motor system of the camera module may include an autofocus (AF) motor, with the lens mounted on top of the AF motor, allowing the camera module to autofocus. In related technologies, the camera module may also include an optical image stabilization (OIS) structure. The OIS structure drives the movement of the camera module (or simultaneously drives the camera module and the AF motor) to achieve optical image stabilization.

[0003] However, in related technologies, camera modules that include both AF and OIS motors have a relatively high failure rate in the motor system. Summary of the Invention

[0004] This application provides a motor system, a camera module, and an electronic device, which helps to reduce the failure rate of the motor system in the camera module.

[0005] A first aspect of this application provides a motor system including an autofocus motor base, an optical image stabilization base, and a shape memory alloy wire assembly. The autofocus motor base includes a first insulating body and a first metal structure. The first metal structure is integral with the first insulating body and includes a first conductive portion and a first connecting portion. The first conductive portion is enclosed within the first insulating body, and the first connecting portion is exposed on the surface of the first insulating body and electrically connected to the first conductive portion. The optical image stabilization base has a first surface 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 opposite to the second surface, and the first surface and the second surface are in sliding engagement. The optical image stabilization base includes a second metal structure. One end of the shape memory alloy wire assembly is fixed to and electrically connected to the first connecting portion, and the other end of the shape memory alloy wire assembly is fixed to and electrically connected to the second metal structure.

[0006] The motor system provided in this application embodiment has two ends of a shape memory alloy wire assembly electrically connected to a first connecting portion and a second metal structure, respectively. The two ends of the shape memory alloy wire assembly can form conductive circuits through the first and second metal structures, respectively, to facilitate energizing the shape memory alloy wire assembly. Since the two ends of the shape memory alloy wire assembly are fixed to the first connecting portion and the second metal structure, the deformation of the shape memory alloy wire assembly during changes in energization can be used to drive the autofocus motor base to move relative to the optical image stabilization base, thereby achieving optical image stabilization of the camera module.

[0007] The first metal structure for electrical connection with the shape memory alloy wire assembly is an integral structure with the first insulating body, so that there is no need to set up other structural components such as springs between the optical image stabilization base and the autofocus motor base to form a conductive circuit for the shape memory alloy wire assembly. This helps to reduce the number of components in the motor system, making the structure of the motor system simpler, reducing assembly steps, and making assembly easier.

[0008] The first metal structure for electrical connection with the shape memory alloy wire assembly is integrally formed with the first insulating body. This stable integration prevents the first metal structure from easily detaching from the first insulating body, reducing the likelihood of problems such as the autofocus motor falling off or the shape memory alloy wire getting caught between the autofocus motor base and the structural components connecting the shape memory alloy wire assembly, which could lead to cracks. Furthermore, the autofocus motor base connected to the shape memory alloy wire assembly is less prone to deformation and often has thicker edges. When the shape memory alloy wire deforms and pulls the autofocus motor base, it is less likely to experience problems such as snagging or cutting. Additionally, the portion of the first metal structure for electrical connection with the shape memory alloy wire assembly exposed on the surface of the first insulating body is minimal, reducing the likelihood of electrical contact between the first metal structure and other conductive components, thus lowering the risk of short circuits in the motor system. Therefore, the motor system provided in this embodiment has a lower failure rate.

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

[0010] In one possible implementation, the first insulating body includes a first main body portion and a first boss portion. The first main body portion is stacked on a first surface, and the first main body portion has a second surface. The first boss portion is disposed on the second surface, and a first connecting portion is located at the end of the first boss portion away from the second surface. This facilitates the placement of the first connecting portion on the side of the optical image stabilization base away from the second surface, enabling connection between the shape memory alloy wire assembly located on the side of the optical image stabilization base away from the second surface and the first connecting portion.

[0011] In one possible implementation, the optical image stabilization base has a cutout portion, within which a first boss portion passes. Thus, the cutout portion allows one end of the first boss portion, away from the second surface, to pass through to the side of the optical image stabilization base opposite to the second surface, facilitating connection of the first connecting portion to a shape memory alloy wire assembly located on the side of the optical image stabilization base opposite to the second surface. Furthermore, the cutout portion can also allow the first boss portion to move relative to the optical image stabilization base to achieve optical image stabilization.

[0012] In one possible implementation, the first metal structure further includes a second connecting portion. The second connecting portion is exposed on the surface of the first insulating body and is electrically connected to the first conductive portion, making it easier to electrically connect the first metal structure to the conductive components outside the first insulating body, facilitating the formation of a conductive circuit through the shape memory alloy wire assembly. 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 to and electrically connected to the end of the shape memory alloy wire assembly, and the second metal substructure is electrically connected to the second connecting portion. Thus, 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 circuit through the second metal substructure, making it easier for the shape memory alloy wire assembly to form a conductive circuit and facilitating the energization of the shape memory alloy wire assembly.

[0013] In one possible implementation, the second metal substructure and the second connecting portion are electrically connected via an elastic conductive element. This facilitates maintaining the electrical connection between the second metal substructure and the second connecting portion even when the optical image stabilization base and the autofocus motor base move relative to each other. Furthermore, the elastic conductive element is extendable, and its redundant portions are not easily moved, reducing the likelihood of the elastic conductive element getting caught on other components.

[0014] In one possible implementation, the shape memory alloy wire assembly includes multiple shape memory alloy wires. The first metal substructure includes multiple image stabilization base electrode traces corresponding one-to-one with the multiple shape memory alloy wires. The multiple image stabilization base electrode traces are insulated from each other. One end of each shape memory alloy wire is fixed and electrically connected to the corresponding image stabilization base electrode trace, and the other end of each shape memory alloy wire is fixed and electrically connected to the first connecting portion. This reduces the number of focusing base electrode traces on the autofocus motor base required to form a conductive circuit from multiple different shape memory alloy wires, making it easier to electrically connect the focusing base electrode traces, which are farther from the module circuit board and movable relative to the module circuit board, to the module circuit board. Furthermore, it saves space on the autofocus motor base, facilitating the arrangement of other conductive structures on the autofocus motor base.

[0015] In one possible implementation, the optical image stabilization base further includes a second insulating body having a first surface. The second insulating body and the second metal structure are integrally formed. The second metal structure includes a second conductive portion and a third connecting portion. The second conductive portion is enclosed within the second insulating body, and the third connecting portion is exposed on the surface of the second insulating body. The third connecting portion is electrically connected to the second conductive portion, and the end of the shape memory alloy wire assembly is fixed to and electrically connected to the third connecting portion. Thus, the second conductive portion is enclosed by the second insulating body, reducing the likelihood of wire clamping problems caused by the shape memory alloy wire getting caught in the gaps at the second conductive portion. Furthermore, it also reduces the likelihood of short circuits caused by conductive particles getting caught in the gaps at the second conductive portion. Additionally, it reduces the likelihood of wire cutting problems caused by the shape memory alloy wire contacting the thin edge of the second conductive portion. Moreover, the portion of the second metal structure used for electrical connection with the shape memory alloy wire assembly exposed on the surface of the second insulating body is relatively small, making it less likely for the second metal structure used for electrical connection with the shape memory alloy wire assembly to come into electrical contact with other conductive components, thus reducing the risk of short circuits and other problems in the motor system. This further helps to reduce the failure rate of the motor system.

[0016] In one possible implementation, the third connection portion is located on the side of the second insulating body opposite to the second surface. This facilitates the connection between the shape memory alloy wire assembly located on the side of the optical image stabilization base opposite to the second surface and the third connection portion.

[0017] In one 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 located on the side of the second main body opposite to the second surface, and a third connecting portion is located on the side of the second main body opposite to the second surface. Thus, the support portion can lift the second main body to create space for accommodating components such as shape memory alloy wire assemblies, facilitating the placement of the shape memory alloy wire assemblies on the side of the optical image stabilization base opposite to the second surface.

[0018] In one possible implementation, the first metal substructure of the second metal structure includes a second conductive portion and a third connecting portion, and the second metal substructure of the second metal structure includes a third conductive portion and a fourth connecting portion. The third conductive portion is enclosed within the second insulating body, and the fourth connecting portion is exposed on the surface of the second insulating body. The fourth connecting portion is electrically connected to the third conductive portion, and the second connecting portion of the first metal structure is electrically connected to the fourth connecting portion. Thus, the second metal substructure can achieve electrical connection with the first metal structure through the fourth connecting portion exposed on the surface of the second insulating body. Since the third conductive portion is enclosed by the second insulating body, the problem of wire clamping due to shape memory alloy wire getting caught in the gap at the third conductive portion is less likely. Furthermore, the problem of short circuits due to conductive particles getting caught in the gap at the third conductive portion is also less likely. Additionally, the problem of wire cutting due to contact between the shape memory alloy wire and the thin edge of the third conductive portion is also less likely. Moreover, the portion of the second metal substructure exposed on the surface of the second insulating body is relatively small, making it less likely for the second metal substructure to come into electrical contact with other conductive components, which helps reduce the risk of short circuits and other problems in the motor system. Therefore, it is beneficial to further reduce the failure rate of the motor system.

[0019] In one possible implementation, the second insulating body includes a second protrusion. The second protrusion is disposed on the first surface, and is offset from the first main body of the first insulating body on the first surface. The fourth connecting portion is located at the end of the second protrusion away from the first surface. This location of the fourth connecting portion at the end of the second protrusion away from the first surface reduces the distance between the fourth connecting portion and the second connecting portion in the height direction of the motor system, facilitating connection between the fourth connecting portion and the second connecting portion. Furthermore, after the fourth connecting portion and the second connecting portion are connected, the pulling force of the optical image stabilization base on the autofocus motor base in the height direction of the motor system is reduced, facilitating relative movement between the autofocus motor base and the optical image stabilization base. Additionally, the offset arrangement of the second protrusion and the first main body on the first surface facilitates sliding of the first main body 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, and a ball bearing is disposed within the first groove. The first surface and the second surface are slidably engaged by the ball bearing. Thus, the ball bearing disposed between the first and second surfaces reduces the friction between them, which helps reduce shake during relative movement between the optical image stabilization base and the autofocus motor base. In other words, it helps reduce shake during optical image stabilization of the camera module, thereby improving the accuracy and efficiency of optical image stabilization. Furthermore, the first groove restricts the position of the ball bearing, making it less likely for it to slip out or fall off. Additionally, the ball bearing's placement within the first groove facilitates easier assembly.

[0021] In one possible implementation, at least one of the autofocus motor base and the optical image stabilization base includes a magnetic element. This magnetic element magnetically attracts a first or second metal structure to fix the autofocus motor base and the optical image stabilization base. Thus, the magnetic attraction between the magnetic element and the first or second metal structure facilitates the fixation of the autofocus motor base and the optical image stabilization base, allowing the shape memory alloy wire assembly to overcome magnetic attraction and move the autofocus motor base relative to the optical image stabilization base to achieve optical image stabilization. Furthermore, compared to a scheme where the autofocus motor base and the optical image stabilization base are pre-loaded via a spring between them, the magnetic attraction force generated by the magnetic element has better consistency and stability with the elastic restoring force of the spring, resulting in better and more stable pre-load consistency of the autofocus motor base on the optical image stabilization base. In addition, utilizing a first or second metal structure for energizing the magnetic element to form a fixed structure for fixing the autofocus motor base and the optical image stabilization base simplifies the overall structure of the motor system.

[0022] In one possible implementation, at least one of the first and second surfaces is provided with a second groove, and the magnetic component is disposed within the second groove. This facilitates the assembly of the magnetic component. Furthermore, the close proximity between the magnetic component and the magnetically attracted first or second metal structure results in a strong magnetic attraction, which is beneficial for the magnetic fixation between the autofocus motor base and the optical image stabilization base.

[0023] In one possible implementation, the motor system further includes a plurality of elastic elements symmetrically arranged relative to the center of the autofocus motor base. One end of each elastic element is fixedly connected to the autofocus motor base, and the other end is fixedly connected to the optical image stabilization base. The autofocus motor base and the optical image stabilization base are connected by the plurality of elastic elements symmetrically arranged relative to the center of the autofocus motor base. The elastic elements can limit the relative movement of the autofocus motor base and the optical image stabilization base, thereby ensuring the autofocus motor base is centered. This facilitates the rotation of the autofocus motor base around the optical axis during optical image stabilization, reducing the likelihood of misalignment. At least one elastic element is an elastic conductive element. In addition to limiting the relative movement of the autofocus motor base and the optical image stabilization base, at least one elastic element can also electrically connect the second metal substructure and the second connecting portion, reducing the number of components in the motor system. Furthermore, it can also eliminate the influence of the additional elastic conductive element that electrically connects the second metal substructure and the second connecting portion on the relative movement of the autofocus motor base and the optical image stabilization base.

[0024] In one 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, and the other end is fixedly connected to the autofocus motor base. One end of the second flexible circuit board is also fixedly connected to the optical image stabilization base, and the other end is fixedly connected to the autofocus motor base. The ends of the first and second flexible circuit boards connected to the autofocus motor base are symmetrically arranged relative to the center of the autofocus motor base. Thus, when the autofocus motor base rotates relative to the optical image stabilization base around its center, the pull of the first and second flexible circuit boards on the autofocus motor base in the radial direction of the lens can be canceled out, facilitating the rotation of the autofocus motor base around the optical axis of the lens and reducing the likelihood of misalignment. Furthermore, in the example where the autofocus motor base is centered using an elastic element, the misalignment during rotation is smaller, requiring less elastic force from the elastic element to center the autofocus motor base, thus reducing the force required from the elastic element.

[0025] In one possible implementation, the motor system further includes a metal base and a metal housing. The metal housing covers the metal base, and the metal housing and the metal base enclose an assembly space. The autofocus motor base, the optical image stabilization base, and the shape memory alloy wire assembly are all located within the assembly space. The side of the optical image stabilization base facing away from the second surface is fixedly connected to the metal base. Thus, the metal base and the metal housing can provide electromagnetic shielding, reducing mutual interference between the inside and outside of the assembly space. Furthermore, by providing a metal base, the metal base and the metal housing can be made of the same or similar materials, facilitating the assembly of the metal housing. Additionally, by providing a metal base, it is also convenient to assemble structures such as insulating bodies (e.g., a second insulating body) onto the module circuit board, facilitating the assembly of the optical image stabilization base on the module circuit board and reducing limitations on the material of the optical image stabilization base.

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

[0027] A third aspect of this application provides an electronic device, which includes a housing and a camera module as described in any of the above embodiments, the camera module being disposed within the housing. Attached Figure Description

[0028] Figure 1 An exploded view of an electronic device provided in an embodiment of this application;

[0029] Figure 2 This is a cross-sectional schematic diagram of a camera module provided in an embodiment of this application;

[0030] Figure 3 An exploded view of a motor system provided in an embodiment of this application;

[0031] Figure 4 This is a cross-sectional schematic diagram of a motor system provided in an embodiment of this application;

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

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

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

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

[0036] Figure 9 This is a schematic diagram of an optical image stabilization base for a motor system provided in an embodiment of this application;

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

[0038] Figure 11 This application provides a schematic diagram illustrating the connection between the second metal structure and the fixed claw of a motor system.

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

[0040] Figure 13 A schematic diagram showing the connection of a first metal structure, a second metal structure, and a shape memory alloy wire assembly in a motor system provided in an embodiment of this application;

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

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

[0043] Figure 16This application provides a schematic diagram showing the connection between an autofocus motor base and an optical image stabilization base for a motor system.

[0044] Figure 17 A schematic diagram showing the connection between the autofocus motor base and the optical image stabilization base of another motor system provided in this application embodiment;

[0045] Figure 18 This application provides a schematic diagram showing the connection between an autofocus motor and an optical image stabilization base in a motor system.

[0046] Figure 19 This is a schematic diagram showing the connection between the autofocus motor and the optical image stabilization base of another motor system provided in this application embodiment.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100. Housing; 110. Back cover; 120. Mid-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, Image sensor;

[0051] 400. Motherboard;

[0052] 500, battery;

[0053] 1000. Autofocus motor base;

[0054] 1100, First insulating body; 1110, First main body portion; 1111, Second surface; 1120, First boss portion;

[0055] 1200, First metal structure; 1210, First conductive part; 1220, First connecting part; 1230, Second connecting part; 1240, Focusing base electrode trace; 1240a, First focusing base electrode trace; 1240b, Second focusing base electrode trace;

[0056] 2000, Optical Image Stabilization Mount;

[0057] 2100, Second insulating body; 2110, Second main body; 2111, First surface; 2112, Hollowed-out part; 2120, Support part; 2130, Second boss part;

[0058] 2200, Second metal structure;

[0059] 2210, First metal substructure; 2211, Image stabilization base electrode trace; 2211a, First image stabilization base electrode trace; 2211b, Second image stabilization base electrode trace; 2211c, Third image stabilization base electrode trace; 2211d, Fourth image stabilization base electrode trace; 2212, Second conductive part; 2213, Third connecting part;

[0060] 2220. Second metal substructure; 2221. Third conductive part; 2222. Fourth connecting part;

[0061] 2230. Grounding wiring;

[0062] 3000, Shape memory alloy wire assembly; 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 casing;

[0065] 6000, Autofocus moving parts; 6100, Limiting parts;

[0066] 7100, First groove; 7200, Ball bearing; 7300, Magnetic component; 7400, Second groove; 7500, Elastic component; 7510, Elastic conductive component; 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 Implementation

[0068] The terminology used in the implementation section of this application is only for explaining specific embodiments of this application and is not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0069] To facilitate understanding, some terms used in the embodiments of this application will be explained first:

[0070] Auto focus (AF): When shooting, the camera module needs to adjust the object distance and image distance of the lens to obtain a clear image. Auto focus uses the camera module's own drive mechanism to move the lens along the optical axis of the lens, thereby changing the lens's focus position and enabling the camera module to capture a clear image.

[0071] Optical image stabilization (OIS) refers to the use of optical components, such as lens settings, in imaging instruments to avoid or reduce camera shake during the capture of optical signals, thereby improving image quality. Specifically, OIS typically involves detecting overall camera module shake and simultaneously moving the lens in the opposite direction to counteract or compensate for the camera module's shake, ensuring a sharper image.

[0072] Shape memory alloy (SMA) wire: An actuator wire formed from a material that exhibits a shape memory effect through thermoelasticity and martensitic phase transformation and its inverse. SMA wire undergoes a phase transformation with temperature changes, thereby altering its stress state. At low temperatures, the SMA wire is in the martensitic phase; as the temperature rises, it transforms from martensitic to austenitic, resulting in deformation and contraction. Therefore, by passing an electric current through the SMA wire and using the heating effect of the current to raise its temperature, the SMA wire can be deformed and contracted. When no current is passed through the SMA wire, it returns to its original shape. This deformation of the SMA wire under changing energized conditions can be used to drive the movement of components such as lenses or autofocus motors, enabling the use of SMA wire for optical image stabilization in camera modules.

[0073] This application provides an electronic device, which may include, but is not limited to, mobile phones, tablets, laptops, ultra-mobile personal computers (UMPCs), handheld computers, walkie-talkies, netbooks, point-of-sale (POS) machines, personal digital assistants (PDAs), wearable devices, virtual reality devices, etc. The electronic device may be a foldable device, such as a foldable mobile phone. It may also be a non-foldable device, such as a candybar mobile phone. This application uses a candybar mobile phone as an example for illustration.

[0074] Figure 1 This is an exploded view of an electronic device provided in an embodiment of this application.

[0075] like Figure 1 As shown in this embodiment, the electronic device includes a housing 100 and a camera module 300. The camera module 300 is disposed within 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 also include a display screen 200 disposed on a housing 100, the display screen 200 and the housing 100 being used to enclose a device mounting cavity, and a camera module 300 disposed within the device mounting cavity enclosed by the display screen 200 and the housing 100.

[0077] In other examples, the electronic device may include a housing 100 but not a display screen 200. The housing 100 may form a device mounting cavity within itself, and the camera module 300 is disposed within the device mounting cavity formed by the housing 100 itself.

[0078] The following explanation uses an electronic device, including a display screen 200 and a housing 100, as an example.

[0079] For example, the housing 100 may include a middle frame 120 and a rear cover 110, with the rear cover 110 and the display screen 200 respectively covering both sides of the middle frame 120, and the rear cover 110, the middle frame 120 and the display screen 200 forming a device mounting cavity.

[0080] In some examples, the middle frame 120 and the back cover 110 can be separate structures, and the middle frame 120 and the back cover 110 can be fixedly connected by means of adhesive, snap-fit, fastener connection, etc.

[0081] In other examples, the middle frame 120 and the back cover 110 can also be a single structure, that is, the middle frame 120 and the back cover 110 can be integrated into a single structural component.

[0082] The electronic device also includes a motherboard 400 and a battery 500, both housed within the casing 100. The battery 500 is electrically connected to both the motherboard 400 and the camera module 300, and supplies power to both. The motherboard 400 is also electrically connected to the camera module 300, and controls the camera module 300.

[0083] For example, the camera module 300 can be electrically connected to the battery 500 via the motherboard 400, and the battery 500 can supply power to the camera module 300 via the motherboard 400.

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

[0085] For example, the front camera module 300a can be disposed on one side of the display screen 200, which has a light-transmitting part, and light from the outside of the display screen 200 can enter the front camera module 300a through the light-transmitting part 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, and the rear camera module 300b can be used to capture external images of the back of the electronic device.

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

[0088] Figure 2 This is a cross-sectional schematic diagram of a camera module provided in an embodiment of this application.

[0089] like Figure 2 As shown in this embodiment, 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 within the housing 100. For example, the module circuit board 330 can be fixedly connected to the main board 400 or the mid-frame 120, and the module circuit board 330 is electrically connected to the main board 400 and the battery 500.

[0090] For example, the module circuit board 330 can be electrically connected to the battery 500 via the motherboard 400.

[0091] The motor system 320 is mounted on and 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 main board 400 can control the motor system 320 through the module circuit board 330.

[0092] The photosensitive element 340 is disposed on and electrically connected to the module circuit board 330. The photosensitive element 340 is located on the image side of the lens 310. Light from the object side of the lens 310 passes through the lens 310 and is incident on 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 interact with the main board 400 through the module circuit board 330.

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

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

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

[0096] Figure 3 This is an exploded view of a motor system provided in an embodiment of this application. In the figure, the x-direction is a first direction, the y-direction is a second direction, and the z-direction is the height direction of the motor system 320. Both the first and second directions are perpendicular to the height direction of the motor system 320, and the first direction is perpendicular to the second direction. For example, 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 this application, the motor system 320 includes an autofocus motor, which includes an autofocus motor base 1000 and an autofocus active component 6000. The autofocus active component 6000 is disposed on the autofocus motor base 1000, and the lens 310 is disposed on the autofocus active component 6000. The autofocus motor base 1000 can drive the autofocus active component 6000 to move along the optical axis of the lens 310 to achieve autofocus of the camera module 300.

[0098] The motor system 320 also includes an optical image stabilization base 2000 and a shape memory alloy wire assembly 3000, the shape memory alloy wire assembly 3000 including multiple shape memory alloy wires 3100. The optical image stabilization base 2000 is mounted on the module circuit board 330, and the autofocus motor base 1000 is mounted on the optical image stabilization base 2000, such that the autofocus motor base 1000 is mounted on the module circuit board 330 via the optical image stabilization base 2000. The shape memory alloy wire assembly 3000 is used to drive the autofocus motor base 1000 to move relative to the optical image stabilization base 2000, so that the autofocus motor base 1000 drives the autofocus active component 6000 and the lens 310 to move relative to the optical image stabilization base 2000, thereby counteracting or compensating for the shake of the camera module 300, and thus achieving 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 flowing through each shape memory alloy wire 3100, thereby driving the autofocus motor base 1000.

[0100] The autofocus motor also includes a limiting member 6100, which is fixedly mounted on the autofocus motor base 1000. The limiting member 6100 is located on the side of the autofocus active component 6000 away from the module circuit board 330. The limiting member 6100 is used to limit the position of the autofocus active component 6000 moving away from the module circuit board 330 along the optical axis of the lens 310.

[0101] In related technologies, the motor system also includes a spring, which is a conductive component. The spring is located on the side of the optical image stabilization (OIS) base away from the module circuit board. The OIS base is made of metal. One end of the shape memory alloy (MMA) wire assembly is fixed to and electrically connected to the OIS base, and the other end of the MMA wire assembly is fixed to and electrically connected to the spring. The autofocus motor base can be fixed to the side of the spring away from the OIS base by means of adhesive bonding or other methods. When the MMA wire assembly is energized, it can pull the spring and cause the spring to deform. The deformed spring can drive the autofocus motor base to move, thereby achieving optical image stabilization of the camera module.

[0102] However, in related technologies, the deformation of the reed can easily lead to delamination between the autofocus motor base and the reed, resulting in problems such as the autofocus motor detaching from the reed and the shape memory alloy wire getting caught in the crack between the autofocus motor base and the reed. Furthermore, the edges of the reed connected to the shape memory alloy wire assembly are relatively thin and flat. The shape memory alloy pulling on the reed causes significant deformation, and when both the reed and the shape memory alloy wire deform, the wire is prone to contact with the reed, causing problems such as wire snagging or cutting. Additionally, the reed is prone to electrical contact with other conductive components (e.g., the optical image stabilization base), making the motor system susceptible to short circuits. In summary, the motor system in related technologies has a high failure rate. Moreover, the motor systems in these technologies have many components, a complex structure, numerous assembly steps, and are difficult to assemble.

[0103] Figure 4 This is a cross-sectional schematic diagram of a motor system provided in an embodiment of this application.

[0104] like Figure 4 As shown, based on this, in the embodiments of this application, the optical image stabilization base 2000 has a first surface 2111, 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, and the autofocus motor base 1000 includes a first insulating body 1100, the first insulating body 1100 has a second surface 1111, the first surface 2111 and the second surface 1111 are opposite to each other, and the first surface 2111 and the second surface 1111 are in sliding engagement.

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

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

[0107] like Figure 5 , Figure 6As shown, the autofocus motor base 1000 also includes a first metal structure 1200, which is electrically connected to the module circuit board 330. The first metal structure 1200 and the first insulating body 1100 are an integral structure, meaning that the first metal structure 1200 and the first insulating body 1100 are integrated into a single structural component. 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 within 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 assembly 3000 is fixed and electrically connected to the first connecting part 1220, and the other end of the shape memory alloy wire assembly 3000 is fixed and electrically connected to the second metal structure 2200.

[0109] In this way, the two ends of the shape memory alloy wire assembly 3000 are electrically connected to the first connecting part 1220 and the second metal structure 2200, respectively. The two ends of the shape memory alloy wire assembly 3000 can form a conductive circuit through the first metal structure 1200 and the second metal structure 2200, respectively, so as to realize the energization of the shape memory alloy wire assembly 3000. The two ends of the shape memory alloy wire assembly 3000 are fixed to the first connecting part 1220 and the second metal structure 2200, respectively, and the first surface 2111 and the second surface 1111 slide fit together. The deformation of the shape memory alloy wire assembly 3000 when the energized state changes can be used to drive the autofocus motor base 1000 to move relative to the optical image stabilization base 2000, so as to realize the optical image stabilization of the camera module 300.

[0110] The first metal structure 1200 for electrical connection with the shape memory alloy wire assembly 3000 is an integral structure with the first insulating body 1100. This eliminates the need for other structural components such as springs between the optical image stabilization base 2000 and the autofocus motor base 1000 to form a conductive circuit for the shape memory alloy wire assembly 3000. This reduces the number of components in the motor system 320, making the structure of the motor system 320 simpler, reducing assembly steps, and making assembly easier.

[0111] The first metal structure 1200, which is electrically connected to the shape memory alloy wire assembly 3000, and the first insulating body 1100 are integrally formed. The first metal structure 1200 and the first insulating body 1100 are firmly bonded, making it difficult for them to detach. This reduces the likelihood of problems such as the autofocus motor falling off or the shape memory alloy wire 3100 getting caught between the autofocus motor base 1000 and the structural components electrically connected to the shape memory alloy wire assembly 3000, resulting in cracks. Furthermore, the autofocus motor base 1000, which is connected to the shape memory alloy wire assembly 3000, is not easily deformed and often has thicker edges. When the shape memory alloy wire 3100 deforms and pulls the autofocus motor base 1000 to move, it is less likely to experience problems such as snagging or cutting. Furthermore, the portion of the first metal structure 1200 used for electrical connection with the shape memory alloy wire assembly 3000 exposed on the surface of the first insulating body 1100 is relatively small. This makes it less likely for the first metal structure 1200 used for electrical connection with the shape memory alloy wire assembly 3000 to come into electrical contact with other conductive components, thereby reducing the risk of short circuits and other problems in the motor system 320. Therefore, the solution provided by the embodiments of this application helps to reduce the failure rate of the motor system 320.

[0112] For example, the first insulating body 1100 can be made of plastic material, and the first metal structure 1200 and the first insulating body 1100 can be formed into an integral structure by in-mold injection molding.

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

[0114] For example, the first metal structure 1200 further 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 conductive components outside the first insulating body 1100 through the second connecting portion 1230. This makes it easier for the first metal structure 1200 to be electrically connected to conductive components outside the first insulating body 1100, and facilitates the formation of a conductive circuit by the shape memory alloy wire assembly 3000 through the first metal structure 1200.

[0115] For example, the second connection portion 1230 can be electrically connected to the module circuit board 330.

[0116] For example, the first metal structure 1200 may include one or more focusing base electrode traces 1240. Each focusing base electrode trace 1240 includes a first conductive part 1210, a first connecting part 1220 and a second connecting part 1230. Each focusing base electrode trace 1240 may include one or more first connecting parts 1220. Each first connecting part 1220 may be fixed and electrically connected to one or more shape memory alloy wires 3100.

[0117] For example, the first metal structure 1200 may include two focusing base electrode traces 1240, one of which is a first focusing base electrode trace 1240a, and the other is a second focusing base electrode trace 1240b. The first focusing base electrode trace 1240a and the second focusing base electrode trace 1240b both include a first conductive portion 1210, a first connecting portion 1220, and a second connecting portion 1230. The first connecting portion 1220 of the first focusing base electrode trace 1240a and the first connecting portion 1220 of the second focusing base electrode trace 1240b are symmetrically arranged with respect to the center of the autofocus motor base 1000. A portion of the shape memory alloy wires 3100 in the shape memory alloy wire assembly 3000 are fixed and electrically connected to the first connecting portion 1220 of the first focusing base electrode trace 1240a. A portion of the shape memory alloy wires 3100 in the shape memory alloy wire assembly 3000 are fixed and electrically connected to the first connecting portion 1220 of the second focusing base electrode trace 1240b.

[0118] Figure 7 This is a schematic diagram of the autofocus motor base of another motor system provided in an embodiment of this application.

[0119] like Figure 7 As shown, and see Figure 6 In some possible embodiments, the first connecting 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 and electrically connected to the first connecting portion 1220. The end of the shape memory alloy wire assembly 3000 is fixed and electrically connected to the movable claw 7700, so that the end of the shape memory alloy wire assembly 3000 is fixed and electrically connected to the first connecting portion 1220 through the movable claw 7700. In this way, it is easier to securely connect the shape memory alloy wire assembly 3000 to the movable claw 7700, which is beneficial for securing the shape memory alloy wire assembly 3000 to the first connecting portion 1220 and electrically connecting it.

[0120] For example, the end of the shape memory alloy wire assembly 3000 can be engaged and fixed with the movable claw 7700.

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

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

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

[0124] In this way, the metal base 4000 and the metal housing 5000 can provide electromagnetic shielding, reducing mutual interference between the assembly space and the surrounding environment. Furthermore, by using the same or similar materials as the metal housing 5000, the metal base 4000 facilitates its assembly. Additionally, the metal base 4000 also facilitates the mounting of structures such as the insulating body onto the module circuit board 330, thus simplifying the assembly of the optical image stabilization base 2000 onto the module circuit board 330 and reducing limitations on the material of the optical image stabilization base 2000.

[0125] For example, both the autofocus active component 6000 and the limiting component 6100 are located within the assembly space.

[0126] like Figure 3 , Figure 4As shown, in some possible embodiments, at least one of the autofocus motor base 1000 and the optical image stabilization base 2000 includes a magnetic element 7300, which magnetically attracts 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 component 7300 and the first metal structure 1200 or the second metal structure 2200, the shape memory alloy wire assembly 3000 can overcome the magnetic attraction force to pull the autofocus motor base 1000 relative to the optical image stabilization base 2000, thereby achieving optical image stabilization, while ensuring the autofocus motor base 1000 and the optical image stabilization base 2000 are fixed. Furthermore, compared to the scheme where the autofocus motor base 1000 and the optical image stabilization base 2000 are pre-loaded via a spring between them, the magnetic attraction force generated by the magnetic component 7300 has better consistency and stability with the elastic restoring force of the spring, resulting in better and more stable consistency of the pre-load of the autofocus motor base 1000 on the optical image stabilization base 2000. Furthermore, by utilizing a first metal structure 1200 or a second metal structure 2200 for power supply in conjunction with a magnetic component 7300, a fixed structure is formed to fix the autofocus motor base 1000 and the optical image stabilization base 2000, which simplifies the overall structure of the motor system 320.

[0128] For example, the motor system 320 includes a plurality of magnetic elements 7300 distributed circumferentially along the autofocus motor base 1000, so that multiple positions of the autofocus motor base 1000 in the circumferential direction can be magnetically attracted to the optical image stabilization base 2000, thereby improving the stability of the autofocus motor base 1000 and the optical image stabilization base 2000 when fixed and moving relative to each other.

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

[0130] For example, the magnetic component 7300 can be a magnet.

[0131] In some examples, the autofocus motor base 1000 includes a magnetic element 7300, which magnetically attracts the second metal structure 2200.

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

[0133] 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 second groove 7400, and the magnetic element 7300 is disposed in the second groove 7400.

[0134] This makes the assembly of the magnetic component 7300 more convenient. Furthermore, the close proximity between the magnetic component 7300 and the magnetically attracted first metal structure 1200 or second metal structure 2200 results in a strong magnetic attraction, which facilitates the magnetic 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 element 7300, and a second groove 7400 is provided on the first surface 2111. The magnetic element 7300 of the autofocus motor base 1000 is disposed in the second groove 7400 of the first surface 2111.

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

[0137] In some examples where the autofocus motor base 1000 includes a magnetic element 7300, the magnetic element 7300 may be integrally formed with the first insulating body 1100, and the magnetic element 7300 may be enclosed within the first insulating body 1100. For example, the magnetic element 7300 may be integrally formed with the first insulating body 1100 together with the first metal structure 1200 by in-mold injection molding.

[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, and a ball 7200 is provided in the first groove 7100. The first surface 2111 and the second surface 1111 are slidably engaged by the ball 7200.

[0139] Thus, by using 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 helps to reduce shake during relative movement between the optical image stabilization base 2000 and the autofocus motor base 1000. In other words, it helps to reduce shake 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 within the first groove 7100, which can restrict the position of the ball bearing 7200, making it less likely for the ball bearing 7200 to slip out or fall off. Furthermore, the ball bearing 7200 is disposed within the first groove 7100, which also makes its assembly easier.

[0140] For example, a portion of the ball 7200 protrudes from the first groove 7100, and the two ends of the ball 7200 in the height direction of the motor system 320 abut against the first insulating body 1100 and the autofocus motor base 1000, respectively.

[0141] For example, multiple balls 7200 can be provided 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 can be a ceramic ball, making it less likely for the conductive structure to short-circuit due to contact with the ball 7200. Furthermore, the ball 7200 is less likely to affect the magnetic attraction of the magnetic component 7300.

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

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

[0145] Figure 8 This is a schematic diagram of a second metal structure provided in an embodiment of this application.

[0146] like Figure 8As shown, in some possible embodiments, the second metal structure 2200 includes a first metal substructure 2210, which is fixed to and electrically connected to the end of the shape memory alloy wire assembly 3000. Specifically, the first metal substructure 2210 includes multiple anti-shake base electrode traces 2211 corresponding one-to-one with the multiple shape memory alloy wires 3100. The multiple 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 to 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 to the first connecting portion 1220.

[0147] This reduces the number of focusing base electrode traces 1240 required to form a conductive circuit from multiple different shape memory alloy wires 3100, making it easier to electrically connect the focusing base electrode traces 1240, which are located far from the module circuit board 330 and can move relative to it, to the module circuit board 330. Furthermore, it saves space on the autofocus motor base 1000, facilitating the arrangement of other conductive structures on the autofocus motor base 1000.

[0148] For example, 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] For example, multiple image stabilization base electrode traces 2211 are spaced apart from each other so that the multiple image stabilization base electrode traces 2211 are insulated from each other.

[0150] One of the image stabilization base electrode trace 2211 and the focus base electrode trace 1240 is a positive trace, meaning that one of them is electrically connected to the positive terminal of the module circuit board 330. The other of the two traces is a negative trace, meaning that the other is electrically connected to the negative terminal of the module circuit board 330. This allows the shape memory alloy wire 3100 to form a conductive circuit through the image stabilization base electrode trace 2211 and the focus base electrode trace 1240, which are electrically connected at both ends.

[0151] For example, the shape memory alloy wire assembly 3000 may include four shape memory alloy wires 3100, which 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 (e.g., Figure 3As shown in the diagram, 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 circumferentially along the autofocus motor base 1000. The second shape memory alloy wire 3100b and the fourth shape memory alloy wire 3100d are 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 located on both sides of the lens 310 in the second direction.

[0152] The first metal substructure 2210 includes four image stabilization base electrode traces 2211. The four image stabilization base electrode traces 2211 are a first image stabilization base electrode trace 2211a, a second image stabilization base electrode trace 2211b, a third image stabilization base electrode trace 2211c, and a fourth image stabilization base electrode trace 2211d. The first image stabilization base electrode trace 2211a, the second image stabilization base electrode trace 2211b, the third image stabilization base electrode trace 2211c, and the fourth image stabilization base electrode trace 2211d are mutually insulated.

[0153] One end of the first image stabilization base electrode trace 2211a is electrically connected to the module circuit board 330, the other end of the first image stabilization 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 part 1220.

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

[0157] For example, the end of the first shape memory alloy wire 3100a facing away from the first image stabilization base electrode trace 2211a, and the end of the fourth shape memory alloy wire 3100d facing away from the fourth image stabilization base electrode trace 2211d are both fixed and electrically connected to the first movable jaw 7700a, so as to be fixed and electrically connected to the first connecting portion 1220 of the first focusing base electrode trace 1240a through the first movable jaw 7700a. The end of the second shape memory alloy wire 3100b facing away from the second image stabilization base electrode trace 2211b, and the end of the third shape memory alloy wire 3100c facing away from the third image stabilization base electrode trace 2211c are both fixed and electrically connected to the second movable jaw 7700b, so as to be fixed and electrically connected to the first connecting portion 1220 of the second focusing base electrode trace 1240b through the second movable jaw 7700b.

[0158] For example, the second metal structure 2200 also includes a grounding trace 2230 for grounding, which 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, wherein 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 connecting 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 circuit through the second metal substructure 2220. It is more convenient for the shape memory alloy wire group 3000 to form a conductive circuit, which makes it easier to energize the shape memory alloy wire group 3000.

[0161] For example, 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 terminal 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 terminal of the module circuit board 330.

[0162] For example, the first metal substructure 2210 and the second metal substructure 2220 are spaced apart.

[0163] For example, 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 an example where the second metal structure 2200 includes a grounding trace 2230, the second metal substructure 2220 is spaced apart from the grounding trace 2230 to insulate the second metal substructure 2220 from the grounding trace 2230.

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

[0166] Figure 9 This is a schematic diagram of an optical image stabilization base for a motor system provided in an embodiment of this application.

[0167] like Figure 9 As shown, and see Figure 8 In some possible implementations, the optical image stabilization base 2000 further includes a second insulating body 2100, which has a first surface 2111. The second insulating body 2100 and the second metal structure 2200 are integrally formed, meaning that the second metal structure 2200 and the second insulating body 2100 are integrated into a single structural component. The second metal structure 2200 includes a second conductive portion 2212 and a third connecting portion 2213. The second conductive portion 2212 is enclosed within the second insulating body 2100, and 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 assembly 3000 is fixed to and electrically connected to the third connecting portion 2213.

[0168] In this way, the second conductive portion 2212 is covered by the second insulating body 2100, reducing the likelihood of wire clamping problems caused by the shape memory alloy wire 3100 getting caught in the gaps at the second conductive portion 2212. Furthermore, it also reduces the likelihood of short circuits caused by conductive particles getting caught in the gaps at the second conductive portion 2212. Additionally, it reduces the likelihood of wire cutting problems caused by the shape memory alloy wire 3100 contacting the thin edge of the second conductive portion 2212. Moreover, the portion of the second metal structure 2200 used for electrical connection with the shape memory alloy wire assembly 3000 exposed on the surface of the second insulating body 2100 is relatively small, making it less likely for the second metal structure 2200 used for electrical connection with the shape memory alloy wire assembly 3000 to come into electrical contact with other conductive components, thus reducing the risk of short circuits and other problems in the motor system 320. This further helps to reduce the failure rate of the motor system 320.

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

[0170] For example, the side of the second insulating body 2100 opposite to the second surface 1111 is fixedly connected to the metal base 4000.

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

[0172] For example, each image stabilization base electrode trace 2211 includes a second conductive portion 2212 and a third connecting portion 2213.

[0173] For example, the third connection portion 2213 of each image stabilization base electrode trace 2211 is located at the end of the image stabilization 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. The end of the first anti-shake base electrode trace 2211a away from the third connection portion 2213 is exposed in the second insulating body 2100 and electrically connected to the module circuit board 330. The third connection portion 2213 of the second image stabilization base electrode trace 2211b is fixed and electrically connected to one end of the second shape memory alloy wire 3100b. The end of the second image stabilization base electrode trace 2211b away from the third connection portion 2213 is exposed in the second insulating body 2100 and electrically connected to the module circuit board 330. The third connection portion 2213 of the third image stabilization base electrode trace 2211c is fixed and electrically connected to one end of the third shape memory alloy wire. The end of the third image stabilization base electrode trace 2211c away from the third connection portion 2213 is exposed in the second insulating body 2100 and electrically connected to the module circuit board 330. The third connection portion 2213 of the fourth image stabilization base electrode trace 2211d is fixed and electrically connected to one end of the fourth shape memory alloy wire 3100d. The end of the fourth image stabilization base electrode trace 2211d away from the third connection portion 2213 is exposed in the second insulating body 2100 and electrically connected to the module circuit board 330.

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

[0176] Figure 10 This is a schematic diagram of the optical image stabilization base of another motor system provided in an embodiment of this application. Figure 11 This is a schematic diagram showing the connection between the second metal structure and the fixed claw of a motor system provided in an embodiment of this application.

[0177] like Figure 10 , Figure 11 As shown, in some possible embodiments, the third connecting 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 and electrically connected to the third connecting portion 2213. The end of the shape memory alloy wire assembly 3000 is fixed and electrically connected to the fixing claw 7600, so that the end of the shape memory alloy wire assembly 3000 is fixed and electrically connected to the third connecting portion 2213 through the fixing claw 7600. In this way, it is easier to securely connect the shape memory alloy wire assembly 3000 to the fixing claw 7600, which is beneficial for securing the shape memory alloy wire assembly 3000 to the third connecting portion 2213 and electrically connecting it.

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

[0179] For example, the fixing claw 7600 can be welded to the third connecting portion 2213, and the fixing claw 7600 is attached to the surface of the third connecting portion 2213.

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

[0181] The fixing claw 7600 of the third connecting portion 2213 of the second image stabilization base electrode trace 2211b is designated as the second fixing claw 7600b. The second fixing claw 7600b is fixed and electrically connected to the third connecting portion 2213 of the second image stabilization base electrode trace 2211b. The second shape memory alloy wire 3100b is fixed and electrically connected to the second fixing claw 7600b. For example, the second shape memory alloy wire 3100b can be engaged with the second fixing claw 7600b, so that the second shape memory alloy wire 3100b is fixed and electrically connected to the third connecting portion 2213 of the second image stabilization base electrode trace 2211b through the second fixing claw 7600b.

[0182] The fixing claw 7600 of the third connecting portion 2213 of the third image stabilization base electrode trace 2211c is designated as the third fixing claw 7600c. The third fixing claw 7600c is fixed and electrically connected to the third connecting portion 2213 of the third image stabilization base electrode trace 2211c. The third shape memory alloy wire 3100c is fixed and electrically connected to the third fixing claw 7600c. For example, the third shape memory alloy wire 3100c can be engaged with the third fixing claw 7600c, so that the third shape memory alloy wire 3100c is fixed and electrically connected to the third connecting portion 2213 of the third image stabilization base electrode trace 2211c through the third fixing claw 7600c.

[0183] The fixing claw 7600 of the third connecting portion 2213 of the fourth image stabilization base electrode trace 2211d is designated as the fourth fixing claw 7600d. The fourth fixing claw 7600d is fixed and electrically connected to the third connecting portion 2213 of the fourth image stabilization base electrode trace 2211d. The fourth shape memory alloy wire 3100d is fixed and electrically connected to the fourth fixing claw 7600d. For example, the fourth shape memory alloy wire 3100d can be engaged with the fourth fixing claw 7600d, so that the fourth shape memory alloy wire 3100d is fixed and electrically connected to the third connecting portion 2213 of the fourth image stabilization base electrode trace 2211d through the fourth fixing claw 7600d.

[0184] Figure 12 This is a schematic diagram showing the connection of an optical image stabilization base, an autofocus motor base, and a shape memory alloy wire assembly for a motor system provided in an embodiment of this application.

[0185] like Figure 12 As shown, in some possible embodiments, the shape memory alloy wire assembly 3000 is disposed on the side of the optical image stabilization base 2000 opposite to the second surface 1111.

[0186] In this way, the shape memory alloy wire assembly 3000 is less 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 less likely to cause problems such as wire snagging or clamping of the shape memory alloy wire assembly 3000.

[0187] For example, both the active claw 7700 and the fixed claw 7600 are located on the side of the optical image stabilization base 2000 away from the second surface 1111.

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

[0189] like Figure 12 As shown, and see Figure 6 , Figure 7 In some possible implementations, 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 stacked on a first surface 2111. The first main body portion 1110 has a second surface 1111. The first boss portion 1120 is disposed on the second surface 1111. The first connecting portion 1220 is located at the end of the first boss portion 1120 away from the second surface 1111.

[0190] This facilitates the placement of the first connecting portion 1220 on the side of the optical image stabilization base 2000 away from the second surface 1111, so as to facilitate the connection between the shape memory alloy wire assembly 3000 located on the side of the optical image stabilization base 2000 away from the second surface 1111 and the first connecting portion 1220.

[0191] For example, the first insulating body 1100 includes two first bosses 1120, which are symmetrically arranged with respect to the center of the autofocus motor base 1000. The first connection portion 1220 of the first focusing base electrode trace 1240a is located at one end of one of the first bosses 1120 away from the second surface 1111, and the first connection portion 1220 of the second focusing base electrode trace 1240b is located at the other end of the first boss 1120 away from the second surface 1111.

[0192] For example, the first movable claw 7700a is provided at the first boss portion 1120 where the first connecting portion 1220 of the first focusing base electrode trace 1240a is located. The second movable claw 7700b is provided at the first boss portion 1120 where the first connecting portion 1220 of the second focusing base electrode trace 1240b is located.

[0193] like Figure 12 As shown, and see Figure 9In some possible implementations, the optical image stabilization base 2000 has a cutout portion 2112, and a first boss portion 1120 passes through the cutout portion 2112.

[0194] Thus, the cutout portion 2112 can be used to allow one end of the first boss portion 1120 away from the second surface 1111 to pass through to the side of the optical image stabilization base 2000 opposite to the second surface 1111, so that the first connecting portion 1220 can be connected to the shape memory alloy wire assembly 3000 located on the side of the optical image stabilization base 2000 opposite to the second surface 1111. In addition, the cutout portion 2112 can also be used to allow the first boss portion 1120 to move relative to the optical image stabilization base 2000 in order to achieve optical image stabilization.

[0195] For example, the second insulating body 2100 has a cutout portion 2112.

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

[0197] This facilitates the connection between the shape memory alloy wire assembly 3000, located on the side of the optical image stabilization base 2000 opposite to the second surface 1111, and the third connecting part 2213.

[0198] In some possible implementations, 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 disposed 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 support the second main body portion 2110 to create space for accommodating components such as the shape memory alloy wire assembly 3000, which facilitates the placement of the shape memory alloy wire assembly 3000 on the side of the optical image stabilization base 2000 away from the second surface 1111.

[0200] For example, the shape memory alloy wire assembly 3000, the movable claw 7700 and the fixed claw 7600 are located within the space formed by the second main body 2110 and the support 2120.

[0201] For example, the support portion 2120 is fixedly connected to the metal base 4000 on the side opposite to the second main body portion 2110.

[0202] Figure 13 This is a schematic diagram showing the connection of a first metal structure, a second metal structure, and a shape memory alloy wire assembly in a motor system provided in an embodiment of this application.

[0203] like Figure 13 As shown, in some possible implementations, the second metal substructure 2220 and the second connection portion 1230 can be electrically connected by an elastic conductive element 7510.

[0204] This facilitates maintaining the electrical connection between the second metal substructure 2220 and the second connecting portion 1230 when the optical image stabilization base 2000 and the autofocus motor base 1000 move relative to each other. Furthermore, the elastic conductive element 7510 is retractable, and its redundant parts are not easily moved, reducing the likelihood of problems such as the elastic conductive element 7510 getting caught on other components.

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

[0206] In some other possible implementations, the second metal substructure 2220 and the second connecting portion 1230 can be electrically connected by wires.

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

[0208] Figure 14 This is a schematic diagram of the optical image stabilization base of another motor system provided in an embodiment of this application. Figure 15 This is a schematic diagram of the autofocus motor base of another motor system provided in an embodiment of this application. Figure 16 This is a schematic diagram showing the connection between an autofocus motor base and an optical image stabilization base of a motor system provided in an embodiment of this application.

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

[0210] In this way, the second metal substructure 2220 can be electrically connected to the first metal structure 1200 through the fourth connecting portion 2222 exposed on the surface of the second insulating body 2100. The third conductive portion 2221 is covered by the second insulating body 2100, reducing the risk of wire clamping caused by the shape memory alloy wire 3100 getting caught in the gap at the third conductive portion 2221. Furthermore, it also reduces the risk of short circuits caused by conductive particles getting caught in the gap at the third conductive portion 2221. Additionally, it reduces the risk of wire cutting caused by the shape memory alloy wire 3100 contacting the thin edge of the third conductive portion 2221. Moreover, the smaller portion of the second metal substructure 2220 exposed on the surface of the second insulating body 2100 makes it less likely for the second metal substructure 2220 to come into electrical contact with other conductive components, thus reducing the risk of short circuits and other problems in the motor system 320. This further helps to reduce the failure rate of the motor system 320.

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

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

[0213] In this way, the fourth connecting portion 2222 is located at the end of the second protrusion portion 2130 away from the first surface 2111, which helps to reduce the distance between the fourth connecting portion 2222 and the second connecting portion 1230 in the height direction of the motor system 320, facilitating the connection between the fourth connecting portion 2222 and the second connecting portion 1230. Furthermore, after the fourth connecting portion 2222 and the second connecting portion 1230 are connected, the pulling force of the optical image stabilization base 2000 on the autofocus motor base 1000 in the height direction of the motor system 320 is reduced, which facilitates the relative movement between the autofocus motor base 1000 and the optical image stabilization base 2000. Additionally, the second protrusion portion 2130 and the first main body portion 1110 are offset from the first surface 2111, facilitating the sliding of the first main body portion 1110 on the first surface 2111.

[0214] For example, the second connecting portion 1230 is located on the side of the first main body portion 1110 that is away from the second surface 1111.

[0215] Figure 17 This is a schematic diagram showing the connection between the autofocus motor base and the optical image stabilization base of another motor system provided in this application embodiment.

[0216] In some possible implementations, the motor system 320 includes a plurality of elastic members 7500 arranged symmetrically with respect to the autofocus motor base 1000. One end of each elastic member 7500 is fixedly connected to the autofocus motor base 1000, and the other end of each 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 by a plurality of elastic elements 7500 arranged symmetrically with respect to the center of the autofocus motor base 1000. The elastic elements 7500 can limit the relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000, so as to keep the autofocus motor base 1000 centered. This facilitates the rotation of the autofocus motor base 1000 around the optical axis during optical image stabilization, making it less likely for the autofocus motor base 1000 to become off-center.

[0218] For example, the motor system 320 may include two elastic elements 7500 arranged symmetrically with respect to the autofocus motor base 1000.

[0219] In some possible implementations, at least one elastic element 7500 is an elastic conductive element 7510, that is, the second metal substructure 2220 and the second connection portion 1230 can be electrically connected through at least one elastic element 7500.

[0220] In this way, at least one elastic element 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 to the second connecting portion 1230, thus reducing the number of components in the motor system 320. Furthermore, it can also eliminate the influence of the separately provided elastic conductive element 7510, which electrically connects the second metal substructure 2220 to the second connecting portion 1230, on the relative movement of the autofocus motor base 1000 and the optical image stabilization base 2000.

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

[0222] For example, the second insulating body 2100 includes two second protrusions 2130, which are symmetrically arranged with respect to the center of the optical image stabilization base 2000. Each of the two second protrusions 2130 is provided with an elastic element 7500. The fourth connecting part 2222 of the second sub-metal structure is located at one end of one of the second protrusions 2130 away from the first surface 2111. The second elastic element 7500 provided at the second protrusion 2130 where the fourth connecting part 2222 is located is an elastic conductive element 7510.

[0223] Figure 18 This is a schematic diagram showing the connection between an autofocus motor and an optical image stabilization base in a motor system provided in an embodiment of this application.

[0224] like Figure 18 As shown, in some possible embodiments, the motor system 320 further 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. 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] For example, the autofocus motor base 1000 also includes a drive mechanism (e.g., a coil), and the first metal structure 1200 may also include a metal substructure for electrically connecting the drive mechanism to the flexible circuit board assembly 8000 to facilitate power supply to the drive mechanism.

[0226] For example, a magnet may be fixedly disposed on the autofocus active component 6000 so that the autofocus active component 6000 can be moved relative to the autofocus motor base 1000 by the interaction between the energized coil and the magnet.

[0227] For example, the motor system 320 may also include a detection device fixedly disposed with the autofocus motor base 1000 and electrically connected to the flexible circuit board assembly 8000. The detection device can be used to detect the relative position of the autofocus active component 6000 and the autofocus motor base 1000.

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

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

[0230] Figure 19 This is a schematic diagram showing the connection between the autofocus motor and the optical image stabilization base of another motor system provided in this application embodiment.

[0231] like Figure 19 As shown, in some possible embodiments, 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. The other end of the first flexible circuit board 8100 is fixedly connected to the autofocus motor base 1000 and electrically connected. 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. The other end of the second flexible circuit board 8200 is fixedly connected to the autofocus motor base 1000 and electrically connected. The ends of the first flexible circuit board 8100 and the second flexible circuit board 8200 connected to the autofocus motor base 1000 are symmetrically arranged with respect to the center of the autofocus motor base 1000.

[0233] In this way, when the autofocus motor base 1000 rotates about its center relative to the optical image stabilization base 2000, the pull of the first flexible circuit board 8100 and the second flexible circuit board 8200 on the autofocus motor base 1000 in the radial direction of the lens 310 can be canceled out. This facilitates the rotation of the autofocus motor base 1000 about the optical axis of the lens 310, making it less prone to eccentricity. Furthermore, in the example where the autofocus motor base 1000 is centered using the elastic member 7500, the eccentricity during rotation is smaller, requiring less elastic force from the elastic member 7500 to center the autofocus motor base 1000, thus reducing the demand on the elastic force provided by the elastic member 7500.

[0234] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0235] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0236] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0237] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0238] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0239] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply 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 this application.

Claims

1. A motor system (320), characterized in that, include: An autofocus motor base (1000) includes a first insulating body (1100) and a first metal structure (1200). The first metal structure (1200) and the first insulating body (1100) are integrally formed. The first metal structure (1200) includes a first conductive part (1210) and a first connecting part (1220). The first conductive part (1210) is enclosed in the first insulating body (1100), and the first connecting part (1220) is exposed on the surface of the first insulating body (1100). The first connecting part (1220) is electrically connected to the first conductive part (1210). An optical image stabilization base (2000) has a first surface (2111) located on one side of the optical image stabilization base (2000) in the height direction of the motor system (320), a first insulating body (1100) has a second surface (1111) opposite to the second surface (1111), the first surface (2111) and the second surface (1111) being slidably engaged, and the optical image stabilization base (2000) includes a second metal structure (2200); A shape memory alloy wire assembly (3000), one end of which is fixed and electrically connected to the first connecting part (1220), and the other end of which is fixed and electrically connected to the second metal structure (2200).

2. The motor system (320) according to claim 1, characterized in that, The shape memory alloy wire assembly (3000) is located on the side of the optical image stabilization base (2000) opposite to the second surface (1111).

3. The motor system (320) according to claim 2, characterized in that, 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 stacked on the first surface (2111), the first main body portion (1110) has the second surface (1111), the first boss portion (1120) is provided on the second surface (1111), and the first connecting portion (1220) is located at the 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) passes through the hollow portion (2112).

5. The motor system (320) according to any one of claims 1-4, characterized in that, The first metal structure (1200) further includes a second connecting portion (1230); The second connecting portion (1230) is exposed on the surface of the first insulating body (1100), and the second connecting portion (1230) is electrically connected to the first conductive portion (1210); The second metal structure (2200) includes a first metal substructure (2210) and a second metal substructure (2220). 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 assembly (3000). The second metal substructure (2220) is electrically connected to the second connecting part (1230).

6. The motor system (320) according to claim 5, characterized in that, The second metal substructure (2220) and the second connecting part (1230) are electrically connected by an elastic conductive element (7510).

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

8. The motor system (320) according to any one of claims 1-7, characterized in that, The optical image stabilization base (2000) further includes a second insulating body (2100), the second insulating body (2100) having the first surface (2111); The second insulating body (2100) and the second metal structure (2200) are integral structures. The second metal structure (2200) includes a second conductive part (2212) and a third connecting part (2213). The second conductive part (2212) is covered inside the second insulating body (2100), and the third connecting part (2213) is exposed on the surface of the second insulating body (2100). The third connecting part (2213) is electrically connected to the second conductive part (2212). The end of the shape memory alloy wire assembly (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 connecting part (2213) is located on the side of the second insulating body (2100) away from the second surface (1111).

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

11. The motor system (320) according to any one of claims 8-10, 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). 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 covered inside the second insulating body (2100). The fourth connecting part (2222) is exposed on the surface of the second insulating body (2100). The fourth connecting part (2222) is electrically connected to the third conductive part (2221). 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) includes a second boss portion (2130); The second boss portion (2130) is provided 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 offset on the first surface (2111). The fourth connecting portion (2222) is located at the end of the second boss portion (2130) away from the first surface (2111).

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

14. The motor system (320) according to any one of claims 1-13, characterized in that, At least one of the autofocus motor base (1000) and the optical image stabilization base (2000) includes a magnetic element (7300) that 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).

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 element (7300) is disposed in the second groove (7400).

16. The motor system (320) according to any one of claims 1-15, characterized in that, It 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). The first flexible circuit board (8100) is connected to one end of the autofocus motor base (1000) and the second flexible circuit board (8200) is connected to one end of the autofocus motor base (1000) symmetrically arranged with respect to the center of the autofocus motor base (1000).

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

18. The motor system (320) according to any one of claims 1-17, characterized in that, It also includes a metal base (4000) and a metal casing (5000); The metal housing (5000) covers the metal base (4000), and the metal housing (5000) and the metal base (4000) enclose an assembly space. The autofocus motor base (1000), the optical image stabilization base (2000), and the shape memory alloy wire assembly (3000) are all located in the assembly space. 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, Includes a module circuit board (330) and a motor system (320) as described in any one of claims 1-18; The optical image stabilization base (2000) of the motor system (320) is disposed on the module circuit board (330), and the first metal structure (1200) 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, Includes a housing (100) and a camera module (300) as described in claim 19; The camera module (300) is located inside the housing (100).

Images