Camera driving assembly, camera module and electronic equipment

Abstract

The invention discloses a camera driving assembly, a camera module and electronic equipment, relates to the technical field of image acquisition, and aims to solve the problems of low control precision and high control difficulty in an anti-shake process. The camera driving assembly comprises a base, a first seat body, a second seat body, a carrier, a first actuating assembly and a second actuating assembly, and the first seat body is arranged on the base; the second seat body is arranged on the first seat body, and at least one part of the second seat body is located on the side, opposite to the base, of the first seat body. The carrier is provided with a lens mounting hole and is arranged on the second seat body; the first actuating assembly is used for driving the first seat body to move in the first direction relative to the base, one part of the first actuating assembly is connected to the first seat body, and the other part of the first actuating assembly is fixed relative to the base; the second actuating assembly is used for driving the second seat body to move in the second direction relative to the first seat body, one part of the second actuating assembly is connected to the second seat body, and the other part of the second actuating assembly is fixed relative to the base.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of image acquisition, and in particular to a camera driving assembly, a camera module and an electronic device. BACKGROUND

[0002] With the increasing requirements of users for shooting, an anti-shake driving component is usually integrated in a camera module to drive lens movement to compensate for the shaking generated in the shooting process, so as to realize optical image stabilization (OIS) and thus ensure the shooting clarity of the camera module.

[0003] However, the control precision of the anti-shake process in the camera module in the related art is low, and the control difficulty is high, which affects the shooting quality of the camera module. SUMMARY

[0004] The present application provides a camera driving assembly, a camera module and an electronic device, which can reduce the control difficulty of the anti-shake process and improve the control precision of the anti-shake process.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a camera driving assembly, comprising a base, a first seat body, a second seat body, a carrier, a first actuating assembly and a second actuating assembly, the first seat body is arranged on the base; the second seat body is arranged on the first seat body, and at least a part of the second seat body is located on a side of the first seat body away from the base; the carrier has a lens mounting hole, and the carrier is arranged on the second seat body; the first actuating assembly is used to drive the first seat body to move along a first direction relative to the base, a part of the first actuating assembly is connected to the first seat body, and the other part is fixed relative to the base; the second actuating assembly is used to drive the second seat body to move along a second direction relative to the first seat body, a part of the second actuating assembly is connected to the second seat body, and the other part is fixed relative to the base; wherein the first direction and the second direction are both perpendicular to the axial direction of the lens mounting hole, and the first direction is perpendicular to the second direction. The axial direction of the lens mounting hole is the same as the optical axis direction of the lens.

[0007] The camera driving assembly in the present application can control the first seat body to move along the first direction through the first actuating assembly to realize the movement of the lens in the first direction, and can control the second seat body to move along the second direction through the second actuating assembly to realize the movement of the lens in the second direction, and thus the translation of the lens in the XY plane can be realized. Since the first seat body and the second seat body are driven by two different actuating assemblies respectively, and the movements of the first seat body and the second seat body in the XY plane are independent of each other, the control program and algorithm of the lens in the first direction and the second direction can be independent of each other and do not affect each other, and decoupling is realized.

[0008] In this way, on the one hand, the control procedures and algorithms of the optical image stabilization process can be simplified, the control difficulty of the optical image stabilization process can be reduced, thereby shortening the response time of the image stabilization process and improving the image stabilization efficiency; on the other hand, the control accuracy of the image stabilization process can be improved, so that the accuracy of the image stabilization compensation movement of the camera module is higher, thereby further improving the shooting quality of the camera module; on the other hand, when the lens only needs to move along the first direction, the second actuating assembly can be idle, and similarly, when the lens only needs to move along the second direction, the first actuating assembly can be idle, which can reduce the energy consumption of the camera driving assembly, help to extend the battery life of the electronic device, and avoid signal interference between the two sets of actuating assemblies; on the other hand, when the second actuating assembly drives the second base to move along the second direction, there is no need to drive the first base to move, which can reduce the load of the second actuating assembly, help to further reduce the energy consumption of the camera driving assembly, and can further improve the control accuracy of the image stabilization process.

[0009] In one possible implementation of the first aspect, the first actuation assembly includes two first actuation units, which are arranged opposite each other and spaced apart in the second direction. Each first actuation unit includes a first fixing member, a second fixing member, and a first actuation wire. The first fixing member is fixed relative to the base; the second fixing member is fixedly connected to the first base, and the second fixing member and the first fixing member are spaced apart in the first direction. The first actuation wire is a shape memory alloy wire, connected to the first and second fixing members. Using the shape memory alloy wire as the first actuation wire of the first actuation assembly can effectively increase the driving force of the first actuation assembly and reduce the volume of the first actuation assembly, thereby effectively reducing the overall volume of the entire camera drive assembly and achieving a miniaturized design of the camera module.

[0010] In one possible implementation of the first aspect, both first actuating units are located on the circumferentially outer side of the first base. Since the image sensor in the camera module is typically located on the side of the base facing away from the first base, arranging the first actuating unit on the circumferentially outer side of the first base allows the position of the first actuating line to be raised relative to the image sensor, thereby increasing the vertical distance between the first actuating line and the image sensor in the direction of the optical axis. This helps reduce interference with the image sensor caused by the drive signal in the first actuating line, thereby improving the image clarity of the image sensor and enhancing the camera module's shooting effect. Furthermore, the space on the side of the first base can be fully utilized, reducing the combined dimensions of the first actuating unit, base, and first base in the direction of the lens' optical axis, thereby reducing the height of the camera drive assembly, and thus reducing the thickness of the camera module and the electronic device, facilitating a thinner design for the electronic device.

[0011] In a possible implementation of the first aspect, the first base includes a first side plate and a second side plate disposed opposite each other in a second direction, both of which are located circumferentially outside the carrier. One of the two first actuating units is located on a side of the first side plate facing away from the second side plate, and the other first actuating unit is located on a side of the first side plate facing away from the second side plate. A specific arrangement of the first actuating units is provided.

[0012] In one possible implementation of the first aspect, a surface of the first side plate facing away from the second side plate includes a first fixing area and a first avoidance area. The first avoidance area is recessed relative to the first fixing area and toward the carrier. The first fixing member of the first actuating unit is fixedly connected to the first fixing area. In the second direction, the first actuating wire is opposite to and spaced from the first avoidance area. This prevents friction between the first actuating wire and the first side plate during contraction or extension, thereby reducing energy loss, improving the accuracy of the anti-shake compensation motion range, and achieving precise anti-shake.

[0013] In a possible implementation of the first aspect, the first actuating wire includes a first end and a second end, the first end is connected to the first fixing member, and the second end is connected to the second fixing member; when the first actuating wire is not energized, the vertical distance between the first end and the reference plane is less than or equal to the vertical distance between the second end and the reference plane; wherein the reference plane is perpendicular to the axial direction of the lens mounting hole, and the reference plane is located on a side of the first actuating wire close to the base.

[0014] In this manner, on the one hand, the first actuating wire can exert a force on the first base in the first direction, causing the first base and the carrier supporting the lens to move in the first direction, thereby achieving optical image stabilization. On the other hand, the space occupied by the first actuating unit in the Z-axis direction can be reduced, thereby facilitating a reduction in the height of the camera driver assembly and the camera module. This, when the camera driver assembly is used in an electronic device, can facilitate a reduction in the thickness of the electronic device, thereby achieving a lightweight and thin design of the electronic device. Furthermore, because the line connecting the first end and the second end is parallel to the XY plane when the first actuating wire is not energized, the force generated by the first actuating wire after energization does not have a force component along the optical axis of the lens. This prevents the first base from moving away from the base along the optical axis during the image stabilization process, further improving the smoothness of the movement of the first base relative to the base in the first direction and preventing the image stabilization process from interfering with the focusing process. This not only improves the accuracy of the image stabilization compensation movement and the focusing accuracy, but also enhances the clarity of images captured by the camera module. Furthermore, the image stabilization and focusing processes are independent of each other, thereby achieving both precise image stabilization and precise focusing.

[0015] In one possible implementation of the first aspect, when the first actuating wire is de-energized, the vertical distance between the first end and the reference plane is less than the vertical distance between the second end and the reference plane. This allows the first actuating wire to produce a smaller contraction amount, resulting in a larger anti-shake travel of the first actuating assembly. This, on the one hand, allows for a wider anti-shake compensation range within the linear contraction region of the first actuating wire. This not only alleviates the problem of optical image stabilization being limited by the linear contraction range of the first actuating wire, but also reduces the space occupied by the first actuating wire circumferentially around the first base, thereby reducing the width and / or length of the camera driver assembly and camera module, and facilitating assembly of the camera module within the electronic device. Furthermore, given the same anti-shake travel, the first actuating wire in this embodiment has a smaller contraction amount, thereby shortening the contraction time of the first actuating wire, improving the anti-shake efficiency and effect of the anti-shake driver, and thus significantly improving the camera module's image quality.

[0016] Furthermore, by positioning the second end of the first actuating wire on a side of the first end away from the base, the force generated by energizing the first actuating wire has a component parallel to the optical axis of the lens and directed from the first base toward the base. This component can pull the first base toward the base along the optical axis, allowing the first base to press against the base during the anti-shake process. This prevents the first base from moving away from the base along the optical axis relative to the base during the anti-shake process, improves the smoothness of the first base's movement along the XY plane relative to the base, and prevents the anti-shake process from interfering with the focusing process. This not only improves the accuracy of the anti-shake compensation movement and the focusing accuracy, and enhances the clarity of images captured by the camera module, but also makes the anti-shake and focusing processes independent of each other, thereby achieving both precise anti-shake and precise focusing.

[0017] In one possible implementation of the first aspect, when the first actuating wire is not energized, the vertical distance between the first end and the reference plane is less than the vertical distance between the second end and the reference plane, and the angle between a line connecting the first end and the second end and the reference plane is less than or equal to 30 degrees. In this way, the space occupied by the anti-shake driver can be reduced while ensuring a large anti-shake compensation range.

[0018] In one possible implementation of the first aspect, the base includes a first top surface facing the first base body, a first fixing boss is provided on the base, the first fixing boss protruding from the first top surface, and the first fixing member is fixedly connected to the first fixing boss. In this manner, the first fixing boss can be used to secure the first fixing member relative to the base, and the first fixing member can be raised to increase the vertical distance between the first actuating wire and the image sensor in a direction parallel to the optical axis, thereby reducing interference with the image sensor caused by electrical signals in the first actuating wire.

[0019] In a possible implementation manner of the first aspect, the camera driving assembly includes a plurality of first reset members, and the plurality of first reset members are configured to apply an acting force to the first seat body to reset the first seat body after the first seat body moves relative to the base in the first direction.

[0020] In this way, when the first actuating wire is powered to contract, the first actuating wire can apply a first acting force to the first seat body in the first direction and from the second fixed member to the first fixed member, so that the first seat body can move relative to the base. In this process, the first reset members are elastically deformed, and can balance and buffer the stress of the first seat body, so that the movement of the first seat body is more stable. When the first actuating wire is powered off and cools down, the first seat body can be reset to the initial position under the action of the first reset members, and with the reset of the first seat body, the first seat body can drive the second fixed member to move relative to the first fixed member, so that the first actuating wire can quickly recover to the first form. The initial position of the first seat body refers to the position of the first seat body when the first actuating wire is in the first form.

[0021] In a possible implementation manner of the first aspect, the first seat body includes a first side plate, and the first side plate is located on the outer side of the carrier in the circumferential direction; and the at least one first reset member is arranged on the side of the first side plate away from the carrier. In this way, the space on the outer side of the first seat body in the circumferential direction can be fully utilized, the superimposed size of the first reset member and the first seat body in the optical axis direction can be reduced, so that the overall volume of the camera driving assembly can be reduced, and the miniaturized design of the camera driving assembly can be realized.

[0022] In a possible implementation manner of the first aspect, the first reset member located on the outer side of the first side plate and the first actuating unit located on the outer side of the first side plate are arranged in a direction parallel to the optical axis. In this way, the first reset member and the first actuating unit can be prevented from interfering with each other.

[0023] In a possible implementation manner of the first aspect, the first reset member on the outer side of the first side plate is located on the side of the first actuating unit on the outer side of the first side plate away from the base. In this way, the first actuating wire can be prevented from interfering with the first reset member when the first actuating wire is powered off and relaxes, and the operation reliability of the camera driving assembly can be improved.

[0024] In a possible implementation manner of the first aspect, the first reset member includes a first connecting portion, a second connecting portion, and an elastically deformable portion, and the elastically deformable portion is connected between the first connecting portion and the second connecting portion. The first connecting portion is fixedly connected to the base, and the second connecting portion is fixedly connected to the first seat body. In this way, the assembly of the first reset member can be facilitated.

[0025] In a possible implementation manner of the first aspect, the first reset member is arranged in a direction parallel to the XY plane.

[0026] In a possible implementation of the first aspect, the second actuating assembly includes two second actuating units, which are arranged at intervals in the first direction, and each second actuating unit includes a third fixing member, a fourth fixing member and a second actuating wire, and the third fixing member is relatively fixed to the base; the fourth fixing member is fixedly connected to the second base body, and the fourth fixing member and the third fixing member are arranged at intervals in the second direction; the second actuating wire is a shape memory alloy wire, and both ends of the second actuating wire are respectively connected to the first fixing member and the second fixing member.

[0027] Using shape memory alloy wire as the second actuating wire of the second actuating assembly can effectively increase the driving force of the first actuating assembly and reduce the volume of the first actuating assembly, thereby effectively compressing the overall volume of the entire camera driving assembly and realizing a miniaturized design of the camera module.

[0028] In one possible implementation of the first aspect, each first actuating unit includes a first actuating wire, and each second actuating unit includes a first actuating wire. In this way, the anti-shake drive component is formed as a four-wire SMA drive motor. The four-wire SMA drive motor has a simple structure and occupies a small area, which helps reduce the overall size of the camera drive assembly.

[0029] In one possible implementation of the first aspect, the second base includes a third side plate and a fourth side plate disposed opposite each other in a first direction, the third side plate and the fourth side plate being located circumferentially outward of the carrier; one of the two second actuating units is located on the side of the third side plate facing away from the fourth side plate, and the other second actuating unit is located on the side of the fourth side plate facing away from the third side plate. This increases the vertical distance between the second actuating line and the image sensor along the optical axis, which helps reduce interference with the image sensor caused by the drive signal in the second actuating line. Furthermore, the combined dimensions of the second actuating unit, the base, and the second base along the optical axis of the lens can be reduced, thereby reducing the height of the camera drive assembly, and further reducing the thickness of the camera module and the electronic device, thereby facilitating a thinner design for the electronic device.

[0030] In one possible implementation of the first aspect, the first base includes a first side panel and a second side panel disposed opposite each other in the second direction, and the second base includes a third side panel and a fourth side panel disposed opposite each other in the first direction. The first side panel, the third side panel, the second side panel, and the fourth side panel are sequentially arranged circumferentially of the carrier and enclose an installation space, and the carrier is disposed within the installation space. This simplifies the structure of the first and second bases, facilitating reductions in volume and weight, thereby reducing the load on the first and second actuating assemblies and further reducing energy consumption of the camera drive assembly. Furthermore, it prevents interference between the first base and the second actuating unit disposed circumferentially outside the second base, thereby reducing the difficulty of assembling the camera drive assembly.

[0031] In one possible implementation of the first aspect, a first guide groove is provided between the first base and the base, the first guide groove extending in a first direction; the camera drive assembly further includes a first guide member disposed within the first guide groove, and when the first base moves relative to the base in the first direction, the first guide member moves relative to the first guide groove in the first direction. In this manner, the first guide member can limit and guide the direction of movement of the first base relative to the base, ensuring that the first base can move linearly relative to the base in the first direction, preventing deviation in the direction of movement of the first base, and thereby improving the stability of the movement of the first base relative to the base.

[0032] In one possible implementation of the first aspect, the first guide member is a ball bearing. This not only guides the movement direction of the first seat body through the first guide, but also reduces friction between the first seat body and the base, thereby reducing the deviation between the target position and the actual movement position of the first seat body during the anti-shake process. This improves the control accuracy of the anti-shake process, thereby reducing the amount of lens shake and improving the shooting effect.

[0033] In a possible implementation manner of the first aspect, the first guide member is a guide rod.

[0034] In one possible implementation of the first aspect, a second guide groove is provided between the first and second base bodies, the second guide groove extending in a second direction. The camera drive assembly further includes a second guide member disposed within the second guide groove. When the second base body moves relative to the first base body in the second direction, the second guide member and the second guide groove move relative to each other in the second direction. In this manner, the second guide member can limit and guide the direction of movement of the second base body relative to the first base body, ensuring that the second base body can move linearly relative to the first base body in the second direction, preventing deviation in the direction of movement of the second base body, and thereby improving the stability of the second base body's movement relative to the first base body.

[0035] In one possible implementation of the first aspect, the camera drive assembly includes a focus drive unit, a portion of which is connected to the carrier and another portion of which is connected to the second base. The focus drive unit is configured to drive the carrier to move axially relative to the second base along the lens mounting hole. In this manner, autofocus is achieved, and the camera module's focus function is achieved by driving the carrier to move relative to the second base. The focus drive unit exerts a low load, thereby reducing its size.

[0036] In one possible implementation of the first aspect, a focus drive unit includes a first magnet and a coil, one of the first magnet and the coil being disposed on the second base, and the other being disposed on the carrier. The first magnet and the coil cooperate to drive the carrier to move axially relative to the second base along the lens mounting hole. A specific structure of the focus drive unit is provided.

[0037] In one possible implementation of the first aspect, the camera drive assembly includes a sliding assembly, the sliding assembly including a sliding member and a sliding groove. The sliding member is disposed on one of the base body and the carrier, and the sliding groove is disposed on the other of the base body and the carrier. When the carrier moves axially relative to the second base body along the lens mounting hole, the sliding member and the sliding groove slidably engage with each other. Thus, during autofocusing, the sliding member and the sliding groove cooperate to restrict and guide the direction of movement of the carrier, preventing deviation in the direction of movement of the carrier, thereby improving the stability of the carrier's movement relative to the second base body.

[0038] In a possible implementation of the first aspect, the camera drive assembly includes a first metal part, which is magnetically engaged with a first magnet. The arrangement direction of the first metal part and the first magnet is perpendicular to the axial direction of the lens mounting hole. One of the first metal part and the first magnet is arranged on the second base, and the other is arranged on the carrier.

[0039] In this way, the first magnet can generate a magnetic attraction force on the first metal member. Under the action of this magnetic attraction, the carrier has a tendency to move toward the second base body during its movement relative to the second base body along the optical axis of the lens, allowing the sliding member and the slide groove to maintain contact, thereby improving the sliding assembly's guiding and limiting effect on the carrier, thereby further improving the stability of the carrier's movement relative to the base body during autofocus. In addition, because both the first metal member and the coil can cooperate with the first magnet, there is no need to provide additional magnets to cooperate with the first metal member. This not only prevents the magnetic field generated by other magnets from interfering with the coil, thereby improving the focusing accuracy of the camera module, but also reduces the number of structural components and simplifies the structure of the camera drive assembly.

[0040] In a possible implementation manner of the first aspect, the camera driving assembly further includes a magnetic attraction assembly, the magnetic attraction assembly includes a first magnetic attraction element and a second magnetic attraction element, the first magnetic attraction element is in magnetic attraction cooperation with the second magnetic attraction element, and the first magnetic attraction element and the second magnetic attraction element are arranged in the axial direction of the lens mounting hole; the first magnetic attraction element is arranged on the second seat body, and the second magnetic attraction element is arranged on the base.

[0041] In this way, the probability of the first seat body and the second seat body being inclined can be reduced, so that the movement stability of the first seat body and the second seat body in the anti-shake process can be improved, and the control accuracy of the anti-shake process is improved.

[0042] In the second aspect, the application provides a camera module, including: a camera driving assembly, a lens, and an image sensor, the camera driving assembly is the camera driving assembly in any of the technical solutions described above; the lens is mounted in the lens mounting hole; and the image sensor is arranged on the side of the base away from the first seat body.

[0043] In a possible implementation manner of the second aspect, the camera module includes a circuit board, the circuit board is located on the side of the base away from the first seat body, and the image sensor is arranged on the side of the circuit board facing the base.

[0044] In the third aspect, the application provides an electronic device, including a screen, a back shell, and a camera module, the screen includes a light-transmitting cover plate and a display screen arranged in layers; the back shell includes a back cover and a frame, the back cover and the light-transmitting cover plate are fixed to opposite ends of the frame respectively, and the light-transmitting cover plate, the back cover, and the frame enclose a containing space; the camera module is arranged in the containing space, the light entrance surface of the camera module faces the back cover or the screen, and the camera module is the camera driving assembly in any of the technical solutions described above.

[0045] Since the camera module and the electronic device provided in the application include the camera driving assembly described in any of the technical solutions above, the same technical problems can be solved and the same technical effects can be achieved, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 A perspective view of an electronic device provided for some embodiments of the application is shown;

[0047] Figure 2 An exploded view of the electronic device shown in Figure 1

[0048] Figure 3 A perspective view of a camera module provided for some embodiments of the application is shown;

[0049] Figure 4 An exploded view of the camera module shown in Figure 3

[0050] ​​ Figure 5 for Figure 3 The camera module is shown in a cross-sectional view at line AA;

[0051] Figure 6 for Figure 4 An exploded view of the camera driver assembly in the camera module shown;

[0052] Figure 7 A perspective view of a camera driving assembly provided in some other embodiments of the present application;

[0053] Figure 8 for Figure 7 An exploded view of the camera driver assembly is shown;

[0054] Figure 9a for Figure 7 A perspective view of the camera driver assembly with the cover removed;

[0055] Figure 9b for Figure 9a The schematic diagram of the assembly of the base, the first seat and the second seat in the camera driving assembly shown;

[0056] Figure 10 for Figure 8 A schematic diagram of an anti-shake driving component in the camera driving assembly shown;

[0057] Figure 11 for Figure 10 A schematic diagram of a single first actuating unit in the camera driving assembly is shown;

[0058] Figure 12 for Figure 9a A top view of the camera driver assembly is shown;

[0059] Figure 13 for Figure 9a A side view of the camera driver assembly shown;

[0060] Figure 14 for Figure 12 A cross-sectional view of the camera drive assembly shown at line CC;

[0061] Figure 15 for Figure 12 A cross-sectional view of the camera drive assembly shown at line DD;

[0062] Figure 16 for Figure 12 A top view of the base and the first guide member in the camera drive assembly is shown;

[0063] Figure 17 for Figure 12A top view of the base, the first base, and the second guide member in the camera drive assembly shown;

[0064] Figure 18 for Figure 7 A cross-sectional view of the camera drive assembly shown at line EE;

[0065] Figure 19 for Figure 18 An enlarged view of the section A region in the cross-sectional view shown;

[0066] Figure 20 for Figure 9a The assembly diagram of the camera driver component and the lens shown;

[0067] Figure 21 for Figure 9a An exploded view of the carrier, second base, and focus drive unit in the camera drive assembly shown;

[0068] Figure 22 for Figure 9a An exploded view of the base and the first electrical connection structure in the camera drive assembly is shown;

[0069] Figure 23 A side view of the assembly of a camera drive assembly and a lens provided in some other embodiments of the present application;

[0070] Figure 24 for Figure 23 Schematic diagram showing the change of a first actuating wire in a camera driving assembly between a first state and a second state.

[0071] Reference numerals:

[0072] electronic device 100;

[0073] Screen 10; translucent cover 11; display screen 12; back shell 20; back cover 21; mounting port 211; frame 22; middle plate 23; main board 30; camera module 40; lens 41; lens barrel 411; optical lens assembly 412; light incident surface 41a; light exit surface 41b;

[0074] Camera driving assembly 42; base 421; first top surface 4211; first bottom surface 4212; first through hole K1;

[0075] Base body 422; accommodating cavity Q; second through hole K2;

[0076] First base 422a; first supporting plate 422a1; first through hole K21; first side plate 422a2; second side plate 422a3;

[0077] Second base 422b; second supporting plate 422b1; second through hole K22; third side plate 422b2; fourth side plate 422b3;

[0078] First fixed area n1, first avoidance area n2;

[0079] Carrier 423; lens mounting hole 423a; housing 424; first top plate 4241; first side panel 4242; third through hole K3; focus drive unit 425; first magnet 4251; first magnetic portion 4251a; second magnetic portion 4251b; third magnetic portion 4251c; coil 4252;

[0080] Anti-shake driving member 426; first actuating assembly 426a; first actuating unit 4261; first fixing member 4261a; second fixing member 4261b; first actuating wire 4261c; first end A; second end B; second actuating assembly 426b; second actuating unit 4262; third fixing member 4262a; fourth fixing member 4262b; second actuating wire 4262c;

[0081] Sliding assembly 427; sliding member 4271; sliding groove 4272; first metal member 4281; first fixing boss 429;

[0082] First restoring member 4201; first connecting portion 4201a; second connecting portion 4201b; elastic deformation portion 4201c; second restoring member 4202;

[0083] Elastic member 4203; first electrical connection structure 4204; first mounting slot C1; magnetic assembly C2; first magnetic member C21; second magnetic member C22; first guide slot C31; first guide member C32; second guide slot C41; second guide member C42;

[0084] Variable aperture 43; aperture hole 431; circuit board 441; image sensor 442; filter 443; mounting bracket 444;

[0085] Camera decorative cover 50; light-transmitting window 51. DETAILED DESCRIPTION

[0086] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0087] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being more preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0088] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0089] In the description of the embodiments of this application, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0090] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, "connected" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative positional relationship after the connection remains unchanged. "Sliding connection" means that the two are connected to each other and can slide relative to each other after the connection.

[0091] In the description of the embodiments of the present application, the terms "perpendicular", "parallel", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is. For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°, 8°, or 10°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°, 8°, or 10°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5%, 8%, or 10% of either one.

[0092] The present invention provides an electronic device, which is a type of electronic device with a camera function. The camera driving assembly in the present invention is provided with two bases, a first base and a second base. The first actuating assembly drives the first base to move relative to the base in a first direction (e.g., the X-axis direction), thereby driving the second base, the carrier, and the lens to move in the first direction. The second actuating assembly drives the second base to move relative to the first base in a second direction (e.g., the Y-axis direction), thereby driving the carrier and the lens to move in the second direction.

[0093] Because the lens's movement in the X-axis direction is achieved by the first actuator assembly driving the movement of the first base, and the lens's movement in the Y-axis direction is achieved by the second actuator assembly driving the movement of the second base, the control programs and algorithms for the lens in the X- and Y-axis directions can be independent of each other, achieving decoupling. This simplifies the control programs and algorithms for the optical image stabilization process, reduces the control difficulty of the image stabilization process, improves the control accuracy of the image stabilization process, and helps reduce the energy consumption of the camera's driver components.

[0094] The present invention provides an electronic device having a camera function. The electronic device in the present invention may be a mobile phone, a tablet computer, a laptop computer, a camera, an unmanned aerial vehicle (UAV), a smart home device, a smart wearable device (e.g., a smart watch, a smart bracelet, smart glasses, a smart helmet), a virtual reality (VR) electronic device, an augmented reality (AR) electronic device, or the like. The present invention does not impose any particular restrictions on the specific form of the electronic device.

[0095] See also Figure 1 Combined with Figure 2 , Figure 1 A perspective view of an electronic device 100 provided in some embodiments of the present application, Figure 2 for Figure 1 The electronic device 100 is shown in the exploded view. In this embodiment, the electronic device 100 is described as a straight-screen mobile phone, but this should not be construed as a limitation of the present application. The electronic device 100 includes a screen 10, a back shell 20, a mainboard 30 ( Figure 1 Not shown), camera module 40 and camera decorative cover 50.

[0096] It is understandable that Figure 1 and Figure 2 Only some components of the electronic device 100 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not affected by the present invention. Figure 1 and Figure 2In some other examples, the electronic device 100 may not include the screen 10.

[0097] The screen 10 is used to display images, videos, etc. Figure 2 The screen 10 includes a translucent cover plate 11 and a display screen 12. The translucent cover plate 11 and the display screen 12 are stacked and fixedly connected. The translucent cover plate 11 is primarily used to protect the display screen 12 and prevent dust. The materials of the translucent cover plate 11 include, but are not limited to, glass, acrylic, etc. The display screen 12 can be a flexible display screen or a rigid display screen.

[0098] The back cover 20 is used to protect the internal electronic components of the electronic device 100. Figure 1-Figure 2 The back shell 20 includes a back cover 21 and a frame 22. The back cover 21 is located on the side of the display screen 12 away from the transparent cover plate 11 and is stacked with the transparent cover plate 11 and the display screen 12. The frame 22 is located between the back cover 21 and the transparent cover plate 11. The transparent cover plate 11 and the back cover 21 can be fixed to opposite ends of the frame 22. The transparent cover plate 11, the back cover 21, and the frame 22 enclose the internal storage space of the electronic device 100.

[0099] The material of the back cover 21 includes, but is not limited to, metal, plastic, fiberglass, glass, ceramic, etc. It is understood that in some other embodiments, the screen 10 and the back cover 21 can also be the first screen and the second screen of the foldable phone, respectively. One of the first screen and the second screen can be the inner screen, and the other can be the outer screen. For example, the screen 10 is the inner screen of the foldable phone, and the back cover 21 is the outer screen of the foldable phone, or the screen 10 is the outer screen of the foldable phone, and the back cover 21 is the inner screen of the foldable phone.

[0100] In some embodiments, see Figure 2 The electronic device 100 further includes a middle plate 23. The middle plate 23 serves as the structural "skeleton" of the electronic device 100 and is fixed to the inner surface of the frame 22. The middle plate 23 and the frame 22 can be formed as a single piece. In other words, the middle plate 23 and the frame 22 can be integrally formed. Alternatively, the middle plate 23 and the frame 22 can be connected by welding, bonding, screws, or the like.

[0101] The mainboard 30 is configured to integrate control chips. The control chips can include a central processing unit (CPU), a graphics processing unit (GPU), an image signal processor (ISP), an application processor (AP), a double data rate (DDR) synchronous dynamic random access memory, a universal flash storage (UFS), and the like.

[0102] The mainboard 30 can be a rigid circuit board, a flexible circuit board, or a combination of rigid and flexible circuit boards. The mainboard 30 can be electrically connected to the screen 10 to drive the screen 10 to display images.

[0103] In addition, the electronic device 100 can further include an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a mobile communication module, a wireless communication module, an audio module, a speaker, a receiver, a microphone, an earphone interface, a sensor module, a key, and the like, which are electrically connected to the control chips. The sensor module can include a pressure sensor, a gyro sensor, a hall sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, and a bone conduction sensor, and the like.

[0104] The camera module 40 can be configured to capture photos, videos, and the like. The camera module 40 is disposed in the back cover 20 of the electronic device 100. Specifically, the camera module 40 is disposed in the internal accommodation space of the electronic device 100. The camera module 40 can be used as a rear camera module or a front camera module.

[0105] In some embodiments, referring to Figure 2 , the camera module 40 can be fixed to the surface of the middle plate 23 facing the back cover 21, and the light entrance surface of the camera module 40 faces the back cover 21. The back cover 21 is provided with a mounting port 211, and the camera decoration cover 50 covers and is fixed to the mounting port 211. The camera decoration cover 50 is configured to protect the camera module 40. The camera decoration cover 50 is provided with a light transmission window 51. The light transmission window 51 allows the scene light to enter the light entrance surface of the camera module 40. In this embodiment, the camera module 40 is used as a rear camera module of the electronic device 100.

[0106] In other embodiments, the camera module 40 can also be fixed to the surface of the middle plate 23 facing the light-transmitting cover plate 11. In this case, the light-incident surface of the camera module 40 faces the light-transmitting cover plate 11. The display screen 12 is provided with a light path avoidance hole. This light path avoidance hole allows scene light to pass through the light-transmitting cover plate 11 and enter the light-incident surface of the camera module 40. In this way, the camera module 40 can be used as the front camera module of the electronic device 100.

[0107] The camera module 40 can be one or more of a standard camera module, a telephoto camera module, a wide-angle camera module, an ultra-telephoto camera module, and an ultra-wide-angle camera module. The embodiment of the present application does not limit the number of camera modules 40. Figure 1 and Figure 2 The following description is made by taking the example of a rear camera module including three camera modules 40 .

[0108] See also Figure 3 Combined with Figure 4 , Figure 3 A perspective view of a camera module 40 provided in some embodiments of the present application, Figure 4 for Figure 3 , which is an exploded view of a camera module 40 . The camera module 40 includes a lens 41 , a camera driving assembly 42 , an iris 43 , a circuit board 441 , an image sensor 442 , and a filter 443 .

[0109] It is understandable that Figure 3-Figure 4 Only some components of the camera module 40 are shown schematically, and the actual shapes, sizes, positions and structures of these components are not affected by the present invention. Figure 3 and Figure 4 For example, in some other embodiments, the camera module 40 may not include at least one of the variable aperture and the filter 443 .

[0110] To facilitate the description of the various embodiments below, an XYZ coordinate system is established for the camera module 40. The optical axis O1 direction of the lens 41 may be the Z-axis direction. The XY plane formed by the X-axis and Y-axis directions is perpendicular to the optical axis O1 direction of the lens 41. In some embodiments, after the camera module 40 is assembled to the electronic device 100, the optical axis O1 direction of the lens 41 may be parallel to the thickness direction of the electronic device 100. The plane formed by the width and length directions of the electronic device 100 is parallel to the XY plane.

[0111] It should be noted that the optical axis O1 of the lens 41 may refer to the direction in which the optical system of the lens 41 transmits light. For example, for a symmetrical lens 41, the optical axis O1 may coincide with the rotational centerline of the optical system of the lens 41. The optical axis O1 of the lens 41 may serve as the optical axis of the camera module 40.

[0112] In addition, the "top" used in the following description of the orientation of each component in the camera module 40 refers to the side of the described component along the optical path close to the object being photographed; "bottom" refers to the side of the described component along the optical path away from the object being photographed, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0113] See also Figure 4 Combined with Figure 5 , Figure 5 for Figure 3 The camera module 40 is shown in a cross-sectional view taken along line AA. The lens 41 may include a lens barrel 411 and an optical lens group 412. The lens barrel 411 is used to fix and protect the optical lens group 412. The middle portion of the lens barrel 411 is provided with an assembly hole extending through along the optical axis O1.

[0114] The optical lens assembly 412 is mounted within the lens barrel 411. The optical lens assembly 412 is used to transmit light from the scene and form an image of the scene being photographed. The optical lens assembly 412 may include one or more optical lenses. These optical lenses may be convex lenses, concave lenses, or plane mirrors. When the optical lens assembly 412 includes multiple optical lenses, these lenses are sequentially arranged within the lens barrel 411 along the optical axis O1 of the lens 41. By designing the structural composition of the optical lens assembly 412 and the shape and size of each optical lens, a lens 41 with various characteristics, such as wide-angle and telephoto, can be obtained.

[0115] See also Figure 5 , the lens 41 includes a light incident surface 41a and a light emitting surface 41b. In some embodiments, the light incident surface 41a is opposite to the light emitting surface 41b. The light incident surface 41a is the surface of the lens 41 that faces the scene being photographed when in use. The scene light can enter the lens 41 through the light incident surface 41a and be emitted through the light emitting surface 41b. For example, in Figure 5 In the figure, the direction of light propagation is shown by the black dashed line with an arrow.

[0116] The camera driver assembly 42 can be used to drive the lens 41 to move in a plane perpendicular to the optical axis O1 to achieve optical image stabilization (OIS). Alternatively, the camera driver assembly 42 can also be used to drive the lens 41 to move along the optical axis O1 to achieve automatic focusing (AF) of the lens 41.

[0117] In some embodiments, the lens 41 can be mounted on the camera drive assembly 42 via a lens barrel 411. In other embodiments, to simplify the structure of the camera module 40, the lens 41 may not include the lens barrel 411. In this case, the optical lens assembly 412 can be directly mounted on the camera drive assembly 42.

[0118] See also Figure 4-Figure 5 The variable aperture 43 has an aperture hole 431 of variable size. By adjusting the size of the aperture hole 431, the amount of external light entering the lens 41 can be adjusted. The variable aperture 43 can be fixedly connected to the lens 41 or fixedly connected to the camera drive assembly 42.

[0119] For details, please refer to Figure 5 The aperture 431 is located on the light incident side of the lens 41 and is opposite to the light incident surface 41a of the lens 41, so that scene light can enter the lens 41 through the aperture 431. In some embodiments, the central axis of the aperture 431 is collinear with the optical axis O1 of the lens 41.

[0120] The light incident side of the lens 41 refers to the side toward which the light incident surface 41 a of the lens 41 faces, and the light exit side of the lens 41 refers to the side toward which the light exit surface 41 b of the lens 41 faces.

[0121] In order to make the light incident on the camera module 40 undergo photoelectric conversion to generate image information, please refer to Figure 4 and Figure 5 The camera module 40 may further include a circuit board 441 , an image sensor 442 and a filter 443 .

[0122] The circuit board 441 can be used to realize the electrical connection between the camera module 40 and the external circuit. In some embodiments, the circuit board 441 can be electrically connected to the mainboard 30 of the electronic device 100. Figure 5 The circuit board 441 is located on the light-emitting side of the lens 41. The circuit board 441 can be a hard circuit board or a flexible circuit board.

[0123] The image sensor 442 is used to collect the imaging light beam after the image is formed by the lens 41 and convert the image information carried by the imaging light beam into an electrical signal. The image sensor 442 can also be called a photosensitive chip or a photosensitive element. Figure 5 The image sensor 442 can be disposed on the circuit board 441 and electrically connected to the circuit board 441. The surface of the image sensor 442 facing away from the circuit board 441 includes a photosensitive area. The photosensitive area is provided with a plurality of photosensitive units. Each photosensitive unit can convert the amount of light in the photosensitive area into an electrical signal proportional to the amount of light.

[0124] The filter 443 can be used to filter stray light in the imaging beam after the lens 41 forms an image, thereby ensuring that the image captured by the camera module 40 has better clarity. Figure 4 and Figure 5 The filter 443 is located on the side of the image sensor 442 facing away from the circuit board 441. In order to install the filter 443, the camera module 40 further includes a mounting bracket 444, and the filter 443 can be fixed to the circuit board 441 by means of the mounting bracket 444.

[0125] Filter 443 may be an infrared filter that filters out infrared light from ambient light while allowing visible light to pass through. Alternatively, filter 443 may be a dual-bandpass filter that selectively passes wavelengths within two regions of ambient light, such as visible light and infrared light, or visible light and ultraviolet light, or ultraviolet light and infrared light.

[0126] See also Figure 6 , Figure 6 for Figure 4 The exploded view of the camera driving assembly 42 in the camera module 40 is shown. The camera driving assembly 42 includes a base 421, a base body 422, a carrier 423 and a cover 424.

[0127] The base 421 is used to provide support for other structural components of the camera module 40. The base 421 is generally plate-shaped. For example, the base 421 can be formed into a rectangular, circular, elliptical, etc. The thickness direction of the base 421 is parallel to the Z axis direction. For details, please refer to Figure 6 , the base 421 includes a Figure 6 The first top surface 4211 and the first bottom surface 4212 are opposite to each other in the Z-axis direction of the center axis. A first through hole K1 is formed on the base 421 and passes through the first top surface 4211 and the first bottom surface 4212. The shape of the first through hole K1 includes but is not limited to a circle, a rectangle, an ellipse, a polygon, an irregular shape, etc.

[0128] The seat body 422 can be arranged on the base 421. Specifically, the seat body 422 can be located on the side of the first top surface 4211 of the base 421. Please refer to Figure 6 The seat body 422 has a receiving cavity Q, and a second through hole K2 is formed in the seat body 422 and communicates with the receiving cavity Q. The second through hole K2 is opposite to and communicates with the first through hole K1. The shape of the second through hole K2 includes but is not limited to a circle, a rectangle, an ellipse, a polygon, an irregular figure, etc. The central axis of the second through hole K2 can be parallel to or coincide with the central axis of the first through hole K1.

[0129] The carrier 423 can be arranged in the receiving cavity Q. Please refer to Figure 6 The carrier 423 has a lens mounting hole 423a, which is a through hole. The axial direction of the lens mounting hole 423a is the same as the optical axis direction of the lens 41. For example, the central axis of the lens mounting hole 423a coincides with or is parallel to the optical axis of the lens 41. In addition, the central axis of the lens mounting hole 423a can also be parallel to or coincide with the central axis of the second through hole K2.

[0130] For example, the carrier 423 can be formed as a ring-shaped frame structure. The lens 41 can be mounted in the lens mounting hole 423a. In some embodiments, the lens 41 and the carrier 423 are detachably connected, so as to facilitate replacement of the lens 41.

[0131] Please refer to Figure 5 The lens 41 can be arranged in the second through hole K2, and the light exit surface 41b of the lens 41 is exposed to the first through hole K1. For example, one end of the light exit surface 41b of the lens 41 can be located in the first through hole K1. In this way, on the one hand, the base 421, the seat body 422, etc. can avoid shielding the light exit surface 41b of the lens 41, so that the light emitted by the lens 41 can smoothly enter the image sensor 442; on the other hand, the size of the camera module 40 in the optical axis O1 direction can also be reduced, thereby facilitating the reduction of the thickness of the electronic device 100, and realizing the thin design of the electronic device 100.

[0132] Please refer to Figure 5 The cover 424 can be fixedly connected to the base 421 and covers the seat body 422 and the carrier 423, so as to play a dustproof role. The material of the cover 424 includes but is not limited to plastic and metal. The cover 424 and the base 421 can jointly constitute the shell of the camera driving assembly 42.

[0133] In some embodiments, please refer to Figure 5 and combine with Figure 6The housing 424 includes a first top plate 4241 and a first side panel 4242. The first side panel 4242 is annular and surrounds the outer periphery of the first top plate 4241. The first top plate 4241 and the base 421 are located at opposite ends of the first side panel 4242. The first top plate 4241, the first side panel 4242, and the base 421 form a receiving cavity for accommodating the base 422, the carrier 423, and the like.

[0134] A third through hole K3 is formed on the first top plate 4241. The central axis of the third through hole K3 can be parallel to or coincide with the optical axis O1 of the lens 41. Figure 5 A portion of the lens 41 can be located within the aforementioned accommodating cavity, with the light incident surface 41a of the lens 41 exposed to the third through hole K3. To ensure sufficient space for the lens 41 to move, a clearance is provided between the inner wall of the third through hole K3 and the iris diaphragm and the lens 41.

[0135] In order to realize the optical image stabilization function of the camera module 40, in some embodiments, please refer to Figure 6 The camera drive assembly 42 also includes an anti-shake drive component 426. Specifically, the anti-shake drive component 426 includes a first actuating component 426a and a second actuating component 426b. The first actuating component 426a is used to provide a combined force along a first direction e1 to the base 422, thereby driving the base 422 to move in the first direction e1. The second actuating component 426b is used to provide a combined force along a second direction e2 to the base 422, thereby driving the base 422 to move in the second direction e2. The first direction e1 and the second direction e2 are both perpendicular to the axial direction of the lens mounting hole 423a, and the first direction e1 is perpendicular to the second direction e2. Exemplarily, the first direction e1 is parallel to the X-axis, and the second direction e2 is parallel to the Y-axis.

[0136] In this way, the anti-shake driver 426 can apply a force parallel to the XY plane to the base, driving the base to move along the XY plane. Because the base 422 and the carrier 423 carrying the lens 41 can simultaneously translate relative to the base 421, the anti-shake driver 426 can drive the lens 41 to move within the XY plane, allowing the camera module 40 to achieve optical image stabilization.

[0137] However, in this embodiment, the movements of the base 422 in the X-axis direction and the Y-axis direction are interrelated and not decoupled, the control algorithm of the anti-shake process is relatively complex, and the control accuracy of the anti-shake process is low, which affects the shooting quality of the camera module 40.

[0138] To solve the above technical problems, please refer to Figure 7 Combined with Figure 8 , Figure 7 A perspective view of a camera driving assembly 42 provided in some other embodiments of the present application, Figure 8 for Figure 7 The exploded view of the camera driving assembly 42 is shown. The camera driving assembly 42 in this embodiment includes a base 421, a first base body 422a, a second base body 422b, a carrier 423 and a cover 424. The structures of the base 421, the carrier 423 and the cover 424 in this embodiment can be referred to respectively. Figure 6 The base 421 , the carrier 423 and the cover 424 in the illustrated embodiment are designed and will not be described in detail herein.

[0139] See also Figure 8 The first base 422a includes a first supporting plate 422a1, a first side plate 422a2, and a second side plate 422a3. The first side plate 422a2 and the second side plate 422a3 are both fixedly connected to the first supporting plate 422a1, and the first side plate 422a2 and the second side plate 422a3 are arranged opposite to each other in the second direction e2.

[0140] The first supporting plate 422a1 can be plate-shaped, and its shape can be substantially the same as that of the base 421. A first through-hole K21 is defined in the first supporting plate 422a1, and the first through-hole K21 can be opposite the lens mounting hole 423a. For example, the central axis of the first through-hole K21 coincides with the central axis of the lens mounting hole 423a. Both the first side plate 422a2 and the second side plate 422a3 can be flat plates.

[0141] The second base body 422b includes a second supporting plate 422b1, a third side plate 422b2, and a fourth side plate 422b3. The third side plate 422b2 and the fourth side plate 422b3 are both fixedly connected to the second supporting plate 422b1 and are disposed opposite each other in the first direction e1. The third side plate 422b2 and the fourth side plate 422b3 can both be formed as flat plates.

[0142] The second supporting plate 422b1 may be plate-shaped, and the shape of the second supporting plate 422b1 is substantially the same as that of the first supporting plate 422a1. A second through hole K22 is defined on the second supporting plate 422b1, and the second through hole K22 is opposite to the first through hole K21.

[0143] See also Figure 9a , Figure 9a for Figure 7 The camera drive assembly 42 is shown in a perspective view without the cover 424. The first base 422a is disposed on the base 421, and the second base 422b is disposed on the first base 422a, with at least a portion of the second base 422b located on a side of the first base 422a facing away from the base 421. The carrier 423 is disposed on the second base 422b.

[0144] See also Figure 9a and combined Figure 9b , Figure 9b for Figure 9a The first base 422a can be arranged on the side facing the first top surface 4211 of the base 421. The first supporting plate 422a1 and the base 421 are axially aligned with the lens mounting hole 423a (i.e., the axial direction of the lens mounting hole 423a). Figure 9b The second supporting plate 422b1 is stacked with the first supporting plate 422a1, and the second supporting plate 422b1 is located on a side of the first supporting plate 422a1 facing away from the base 421.

[0145] The first side plate 422a2, the second side plate 422a3, the third side plate 422b2, and the fourth side plate 422b3 can all be located circumferentially outside the carrier 423. In this embodiment, the first side plate 422a2 and the second side plate 422a3 are spaced apart in the circumferential direction of the carrier 423. It is understood that in other embodiments, the first side plate 422a2 and the second side plate 422a3 can also be connected to form a ring in the circumferential direction of the carrier 423. In this case, the first base 422a may include the first supporting plate 422a1 or may not include the first supporting plate 422a1. Alternatively, in other embodiments, the first base 422a may only include the first supporting plate 422a1 and not include at least one of the first side plate 422a2 and the second side plate 422a3.

[0146] Similarly, in other embodiments, the third side plate 422b2 and the fourth side plate 422b3 may also be connected to form a ring in the circumferential direction of the carrier 423. Alternatively, the second base 422b may include only the second supporting plate 422b1 without including at least one of the third side plate 422b2 and the fourth side plate 422b3.

[0147] See also Figure 10 , Figure 10 for Figure 8 Figure 4 shows a schematic diagram of the anti-shake driver 426 in the camera driver assembly 42. The anti-shake driver 426 includes a first actuating assembly 426a and a second actuating assembly 426b. The first actuating assembly 426a is used to apply a force along a first direction e1 to the first base 422a, thereby driving the first base 422a to move along the first direction e1 relative to the base 421. A portion of the first actuating assembly 426a can be fixed relative to the base 421, while the other portion can be connected to the first base 422a.

[0148] The second actuating assembly 426b is used to provide a combined force along the second direction e2 for the second base 422b to drive the second base 422b to move relative to the first base 422a along the second direction e2. A portion of the second actuating assembly 426b can be fixed relative to the base 421, and the other portion can be connected to the first base 422a.

[0149] Specifically, when the first base 422a moves relative to the base 421 in the first direction e1, it can drive the second base 422b and the carrier 423 to move in the first direction e1, thereby driving the lens 41 to move in the first direction e1. When the second base 422b moves relative to the first base 422a in the second direction e2, it can drive the carrier 423 and the lens 41 inside the carrier 423 to move in the second direction e2.

[0150] In this way, the first actuator component 426a can be used to control the first base body 422a to move along the first direction e1, thereby realizing the movement of the lens 41 in the first direction e1, and the second actuator component 426b can be used to control the second base body 422b to move along the second direction e2, thereby realizing the movement of the lens 41 in the second direction e2, thereby realizing the translation of the lens 41 in the XY plane.

[0151] Since the first base 422a and the second base 422b are driven by two different sets of actuating assemblies, namely the first actuating assembly 426a and the second actuating assembly 426b, respectively, and the movements of the first base 422a and the second base 422b in the XY plane are independent of each other, the control programs, algorithms, etc. of the lens 41 in the first direction e1 and the second direction e2 can be independent of each other and do not affect each other, thereby achieving decoupling.

[0152] Therefore, on the one hand, the control program and algorithm of the optical image stabilization process can be simplified, and the control difficulty of the optical image stabilization process can be reduced, thereby shortening the response time of the image stabilization process and improving the image stabilization efficiency. On the other hand, the control accuracy of the image stabilization process can be improved, so that the accuracy of the image stabilization compensation movement of the camera module 40 is higher, thereby further improving the shooting quality of the camera module 40. On the other hand, when the lens 41 only needs to move along the first direction e1, the second actuating assembly 426b does not need to work. Similarly, when the lens 41 only needs to move along the second direction e2, the first actuating assembly 426a does not need to work, which can reduce the energy consumption of the camera driving assembly 42, which is conducive to extending the battery life of the electronic device 100 and avoiding signal interference between the two sets of actuating assemblies. On the other hand, when the second actuating assembly 426b drives the second base 422b to move along the second direction e2, it does not need to drive the first base 422a to move, which can reduce the load of the second actuating assembly 426b, which is conducive to further reducing the energy consumption of the camera driving assembly 42 and further improving the control accuracy of the image stabilization process.

[0153] In some embodiments, see Figure 10 The first actuating assembly 426a includes two first actuating units 4261. The two first actuating units 4261 are arranged opposite to each other in the second direction e2. Each first actuating unit 4261 includes a first fixing member 4261a, a second fixing member 4261b and a first actuating wire 4261c.

[0154] See also Figure 9b The first fixing member 4261a can be fixed relative to the base 421, and the second fixing member 4261b can be fixedly connected to the first base 422a. The first actuation wire 4261c is connected to the first fixing member 4261a, and the first actuation wire 4261c is connected to the second fixing member 4261b. The first fixing member 4261a and the second fixing member 4261b can be arranged in the first direction e1. Each first actuation unit 4261 can include a first actuation wire 4261c.

[0155] See also Figure 10 The two first actuating units 4261 include two first fixing members 4261a and two second fixing members 4261b, which are alternately arranged around the circumference of the carrier 423. In some embodiments, the two first fixing members 4261a and the two second fixing members 4261b are respectively located at the four corners of a rectangle, with the two first fixing members 4261a arranged along one diagonal of the rectangle and the two second fixing members 4261b arranged along the other diagonal of the rectangle.

[0156] In some embodiments, the first fixing member 4261a and the second fixing member 4261b can both be metal members. In this way, the first fixing member 4261a and the second fixing member 4261b can serve as connection terminals of the first actuating unit 4261, thereby facilitating electrical connection between the first actuating unit 4261 and the circuit board 441 of the camera module 40.

[0157] First actuation wire 4261c is a shape memory alloy. Specifically, first actuation wire 4261c can be a wire structure made of a shape memory alloy. Shape memory alloys are materials composed of two or more metal elements that exhibit shape memory effects through thermoelasticity, martensitic transformation, and their inverse transformation. They shrink when heated and expand when cooled. Exemplarily, the shape memory alloy can be a nickel-titanium alloy.

[0158] Based on this, when the first actuating wire 4261c is powered, the first actuating wire 4261c converts part of the electric energy into heat energy due to its resistance characteristic, and the first actuating wire 4261c shrinks under the action of its own heat energy, and the length of the first actuating wire 4261c becomes shorter. When the power supply to the first actuating wire 4261c is stopped, the temperature of the first actuating wire 4261c decreases, the first actuating wire 4261c can recover the deformation, and the length of the first actuating wire 4261c can become longer.

[0159] Specifically, the first actuating wire 4261c includes a first form (i.e., the state when the power is off) and a second form (i.e., the state when the power is on), and can be switched between the first form and the second form. Please refer to Figure 11 , Figure 11 For Figure 10 the schematic diagram of a single first actuating unit 4261 in the camera driving assembly 42 is shown. Among them, Figure 11 the first actuating unit 4261 shown in (a) of Figure 11 , the first actuating wire 4261c is in the first form, the first actuating unit 4261 shown in (b) of

[0160] , the first actuating wire 4261c is in the second form.

[0161] As shown in (a) of Figure 11 , in the first form, the distance between the first end A and the second end B of the first actuating wire 4261c is the first length L1, as shown in (b) of Figure 11 , in the second form, the distance between the first end A and the second end B of the first actuating wire 4261c is the second length L2. The first length L1 is greater than the second length L2.

[0162] In this way, during the anti-shake process, power can be supplied to the first actuating wire 4261c, causing it to contract and shorten. Because the first fixing member 4261a is relatively fixed to the base 421, and the second fixing member 4261b is connected to the first base 422a, during the contraction and shortening of the first actuating wire 4261c, the first actuating wire 4261c can apply a pulling force to the first base 422a, thereby pulling the first base 422a relative to the base 421 in the first direction e1, thereby generating a compensation stroke for optical image stabilization, thereby achieving optical image stabilization. Furthermore, the camera drive assembly 42 in the embodiment of the present application utilizes a shape memory alloy as the first actuating wire 4261c of the first actuating assembly 426a, effectively increasing the driving force of the first actuating assembly 426a and reducing the volume of the first actuating assembly 426a. This effectively compresses the overall volume of the entire camera drive assembly 42, thereby achieving a miniaturized design for the camera module 40.

[0163] See also Figure 10 The second actuating assembly 426b includes two second actuating units 4262, which are arranged opposite each other in the first direction e1. Each second actuating unit 4262 includes a third fixing member 4262a, a fourth fixing member 4262b, and a second actuating wire 4262c. The third fixing member 4262a and the fourth fixing member 4262b are spaced apart in the second direction e2. The second actuating wire 4262c is connected to the third fixing member 4262a and the fourth fixing member 4262b. The second actuating wire 4262c is a shape memory alloy wire.

[0164] See also Figure 9b The third fixing member 4262a is fixed relative to the base 421, and the fourth fixing member 4262b is fixedly connected to the second base 422b. In some embodiments, the third fixing member 4262a and the fourth fixing member 4262b can both be metal. In this way, the third fixing member 4262a and the fourth fixing member 4262b can serve as connection terminals for the second actuating unit 4262, facilitating electrical connection between the second actuating unit 4262 and the circuit board 441 of the camera module 40.

[0165] In some embodiments, each second actuating unit 4262 includes a second actuating wire 4262c. In this case, the anti-shake driver 426 in this embodiment can be formed as a four-wire SMA driver. The four-wire SMA drive motor has a simple structure and occupies a small area, which helps reduce the overall size of the camera driver assembly 42.

[0166] See also Figure 10The two second actuating units 4262 include two third fixing members 4262a and two fourth fixing members 4262b, which are alternately arranged around the circumference of the carrier 423. In some embodiments, the two third fixing members 4262a and the two fourth fixing members 4262b are respectively located at the four corners of a rectangle, with the two third fixing members 4262a arranged on one diagonal of the rectangle and the two fourth fixing members 4262b arranged on the other diagonal of the rectangle.

[0167] In this way, during the image stabilization process, power can be supplied to the second actuating wire 4262c, causing it to contract and shorten. Because the third fixing member 4262a is fixed relative to the base 421 and the fourth fixing member 4262b is connected to the second base 422b, during the contraction and shortening of the second actuating wire 4262c, the second actuating wire 4262c can apply a tensile force to the second base 422b, thereby pulling the second base 422b relative to the first base 422a in the second direction e2, thereby generating a compensation stroke for optical image stabilization, thereby achieving optical image stabilization. Furthermore, the use of a shape memory alloy as the second actuating wire 4262c of the second actuating assembly 426b effectively increases the driving force of the second actuating assembly 426b and reduces its volume, thereby effectively reducing the overall volume of the entire camera drive assembly 42 and achieving a miniaturized design for the camera module 40.

[0168] In some embodiments, see Figure 10 In the circumferential direction of the carrier 423 , the first fixing member 4261a of the first actuating unit 4261 is adjacent to the third fixing member 4262a of the second actuating unit 4262 , or the second fixing member 4261b of the first actuating unit 4261 is adjacent to the fourth fixing member 4262b of the second actuating unit 4262 .

[0169] See also Figure 12 , Figure 12 for Figure 9a 1 is a top view of the camera drive assembly 42. The top views described in the embodiments of the present application are all schematic views viewed from the side facing the first top surface 4211 of the base 421, looking toward the first bottom surface 4212 of the base 421. For ease of description, the two first actuation lines 4261c are referred to as actuation lines s1 and s2, respectively, and the two second actuation lines 4262c are referred to as actuation lines s3 and s4, respectively.

[0170] When it is necessary to drive the lens 41 to move in the positive direction of the X-axis, a current I1 can be passed through the actuating wire s1, and a current I2 can be passed through the actuating wire s2, with the current I2 being less than the current I1. Actuating wires s3 and s4 can be de-energized. In other words, the second actuating assembly 426b can be de-energized. In this way, actuating wire s1 can provide a pulling force f1 in the positive direction (X+) of the X-axis, and actuating wire s2 can provide a pulling force f2 in the negative direction (X-) of the X-axis. Since f1 is greater than f2, the combined force provided by actuating wires s1 and s2 is in the positive direction of the X-axis. Thus, under the action of actuating wires s1 and s2, the first base 422a can move in the positive direction of the X-axis, while preventing the first base 422a from rotating in the XY plane. Thus, movement of the lens 41 in the positive direction of the X-axis can be achieved.

[0171] When it is necessary to drive the lens 41 to move in the positive direction of the Y-axis, a current I3 can be passed through actuating wire s3, and a current I4 can be passed through actuating wire s4, with current I3 being less than current I4. Actuating wires s1 and s2 can be de-energized. In other words, the first actuating assembly 426a can be de-energized. In this way, actuating wire s3 can provide a pulling force f3 in the positive direction (Y+) of the Y-axis, and actuating wire s4 can provide a pulling force f4 in the negative direction (Y-) of the Y-axis. Because f3 is less than f4, the combined force provided by actuating wires s3 and s4 extends in the positive direction of the Y-axis. Thus, under the action of actuating wires s3 and s4, the second base 422b can move in the positive direction of the Y-axis, while preventing the second base 422b from rotating in the XY plane. Thus, movement of the lens 41 in the positive direction of the Y-axis can be achieved.

[0172] In this way, the energy consumption of the camera driving component 42 can be reduced, which is beneficial to extending the battery life of the electronic device 100. The calculation procedure of the anti-shake process is simple, which can reduce the control difficulty of the anti-shake process and improve the control accuracy of the anti-shake process, which is beneficial to improving the shooting quality of the camera module 40.

[0173] It is understandable that in other embodiments, at least one of the first actuating assembly 426a and the second actuating assembly 426b may be designed as a voice coil driver, as long as the first actuating assembly 426a can drive the first base 422a to move relative to the base 421 along the first direction e1, and the second actuating assembly 426b can drive the second base 422b to move relative to the first base 422a along the second direction e2.

[0174] In some embodiments, please refer back to Figure 8 Combined with Figure 9bOne of the two first actuating units 4261 can be disposed on a side of the first side plate 422a2 facing away from the second side plate 422a3, and the other first actuating unit 4261 can be disposed on a side of the second side plate 422a3 facing away from the first side plate 422a2. In other words, both first actuating units 4261 are located on the circumferential outer side of the first base 422a.

[0175] Illustratively, the second fixing member 4261b of one of the two first actuating units 4261 may be fixedly connected to the first side plate 422a2, and the second fixing member 4261b of the other first actuating unit 4261 may be fixedly connected to the second side plate 422a3.

[0176] Since the image sensor 442 in the camera module 40 is usually located on the side of the base 421 facing away from the first base body 422a, by setting the first actuating unit 4261 on the circumferential outer side of the first base body 422a, the position of the first actuating line 4261c can be raised relative to the image sensor 442, thereby increasing the vertical distance between the first actuating line 4261c and the image sensor 442 in the optical axis direction, which is beneficial to reduce the interference caused by the driving signal in the first actuating line 4261c to the image sensor 442, and further helps to improve the imaging clarity of the image sensor 442, and can improve the shooting effect of the camera module 40.

[0177] In addition, by arranging the first actuating unit 4261 on the circumferential outer side of the first seat body 422a, the space on the side of the first seat body 422a can be fully utilized, and the overlapping size of the first actuating unit 4261, the base 421 and the first seat body 422a in the optical axis direction of the lens 41 can be reduced, thereby reducing the height of the camera driving assembly 42, and then reducing the thickness of the camera module 40 and the electronic device 100, which is conducive to realizing a thin design of the electronic device 100.

[0178] Please continue reading Figure 8 Combined with Figure 9b One of the two second actuating units 4262 can be disposed on the side of the third side plate 422b2 facing away from the fourth side plate 422b3, while the other second actuating unit 4262 can be disposed on the side of the third side plate 422b2 facing away from the fourth side plate 422b3. In other words, both second actuating units 4262 are located circumferentially outside the second base 422b. For example, the fourth fixing member 4262b of one second actuating unit 4262 can be fixedly connected to the third side plate 422b2, while the fourth fixing member 4262b of the other second actuating unit 4262 can be fixedly connected to the fourth side plate 422b3.

[0179] This increases the vertical distance between the second actuating wire 4262c and the image sensor 442 along the optical axis, which helps reduce interference caused by the drive signal in the second actuating wire 4262c on the image sensor 442, thereby improving the image clarity of the image sensor 442 and enhancing the photographic quality of the camera module 40. Furthermore, it reduces the combined dimensions of the second actuating unit 4262, the base 421, and the second base 422b along the optical axis, thereby reducing the height of the camera drive assembly 42 and, in turn, the thickness of the camera module 40 and the electronic device 100, thereby achieving a thinner design for the electronic device 100.

[0180] It is understood that in other embodiments, the first actuating unit 4261 may also be disposed at the bottom of the base 421 or the top of the first base body 422a. Similarly, the second actuating unit 4262 may also be disposed at the bottom of the base 421 or the top of the second base body 422b.

[0181] In some embodiments, see Figure 9a The first side plate 422a2, the third side plate 422b2, the second side plate 422a3, and the fourth side plate 422b3 can be arranged in sequence along the circumference of the carrier 423 to enclose an installation space, and the carrier 423 is disposed within the installation space. This simplifies the structure of the first base 422a and the second base 422b, facilitating reductions in volume and weight, thereby reducing the load on the first actuating assembly 426a and the second actuating assembly 426b, and further reducing the energy consumption of the camera driving assembly 42. Furthermore, it prevents the first base 422a from interfering with the second actuating unit 4262 disposed circumferentially outside the second base 422b, thereby reducing the difficulty of assembling the camera driving assembly 42.

[0182] In order to achieve the fixation of the first actuating unit 4261, please refer to Figure 9b , a first fixing boss 429 is provided on the base 421. Specifically, the first fixing boss 429 protrudes from the first top surface 4211 of the base 421. Exemplarily, the first fixing boss 429 can be provided on the first top surface 4211 of the base 421. Alternatively, in other embodiments, the first fixing boss 429 can also be provided on the outer peripheral surface of the base 421. The outer peripheral surface of the base 421 refers to the surface connected between the first top surface 4211 and the first bottom surface 4212 of the base 421.

[0183] In this way, by arranging the first fixing boss 429, the relative fixation between the first fixing member 4261a and the base 421 can be achieved, and the position of the first fixing member 4261a can be easily raised, the vertical distance between the first actuating wire 4261c and the image sensor 442 in the direction parallel to the optical axis can be increased, and the interference of the electrical signal in the first actuating wire 4261c to the image sensor 442 can be reduced.

[0184] In some embodiments, the number of the first fixing boss 429 can be the same as the number of the first actuating unit 4261. Please refer to Figure 8 In this embodiment, the first fixing boss 429 is two, and the two first fixing bosses 429 are arranged in the circumferential direction of the base 421. For example, the two first fixing bosses 429 can be arranged at two corner positions of the base 421.

[0185] In some embodiments, the first fixing boss 429 and the base 421 can be integrally formed. For example, the first fixing boss 429 and the base 421 can be integrally injection molded. Alternatively, the first fixing boss 429 and the base 421 can also be fixedly connected by bonding, welding, screw connection or the like. It can be understood that in other embodiments, the first fixing member 4261a can also be fixedly connected to the cover 424, as long as the relative fixation between the first fixing member 4261a and the base 421 can be maintained.

[0186] In some embodiments, please refer to Figure 9a The surface of the first side plate 422a2 facing away from the carrier 423 (i.e. the outer side surface of the first side plate 422a2) comprises a first fixing region n1 and a first avoiding region n2, and the first avoiding region n2 is recessed towards the carrier 423 relative to the first fixing region n1. The second fixing member 4261b is fixedly connected to the first fixing region n1. The first actuating wire 4261c is opposite and spaced apart from the first avoiding region n2 in the second direction e2. That is, the first actuating wire 4261c does not contact the first avoiding region n2. In this way, the friction between the first actuating wire 4261c and the first side plate 422a2 during the contraction or elongation of the first actuating wire 4261c can be avoided, so that the energy loss can be reduced, and the accuracy of the anti-shake compensation movement stroke can be improved.

[0187] The structure of the second side panel 422a3 can be identical to that of the first side panel 422a2, and the manner in which the second fixing member 4261b is connected to the second side panel 422a3 can be identical to the manner in which the second fixing member 4261b is connected to the first side panel 422a2. Furthermore, the manner in which the third fixing member 4262a in the second actuating unit 4262 is relatively fixed to the base 421 can be identical to the manner in which the first fixing member 4261a is relatively fixed to the base 421. The manner in which the fourth fixing member 4262b is connected to the third side panel 422b2 and the fourth side panel 422b3 can be identical to the manner in which the second fixing member 4261b is connected to the first side panel 422a2, and will not be described in detail herein.

[0188] Based on any of the above examples, please refer to Figure 8 Combined with Figure 9a The camera drive assembly 42 also includes a first reset member 4201, the ends of which are connected to the base 421 and the first base 422a, respectively. The first reset member 4201 is used to apply a force to the first base 422a to reset the first base 422a after the first actuating assembly 426a drives the first base 422a to move relative to the base 421. The first reset member 4201 may be an elastic structural member. Exemplarily, the first reset member 4201 may be a spring or a bellows. The first reset member 4201 can apply a force parallel to the XY plane to the first base 422a.

[0189] Thus, when the first actuating wire 4261c is energized and contracts, it can apply a first force to the first base 422a along the first direction e1 and directed from the second fixing member 4261b toward the first fixing member 4261a, thereby enabling the first base 422a to move relative to the base 421. During this process, the first restoring member 4201 undergoes elastic deformation, and the first actuating wire 4261c overcomes the force of the first restoring member 4201 and the friction between the first base 422a and the base 421, deforming from the first shape to the second shape. Thus, during the anti-shake process, the first restoring member 4201 can balance and buffer the force acting on the first base 422a, thereby ensuring smoother movement of the first base 422a.

[0190] When the first actuating wire 4261c is powered off and cooled, the first force exerted by the first actuating wire 4261c on the first base 422a disappears. At this point, the first base 422a can be reset to its initial position under the force provided by the first reset member 4201. As the first base 422a is reset, the first base 422a can drive the second fixing member 4261b to move relative to the first fixing member 4261a, allowing the first actuating wire 4261c to quickly return to its first configuration. The "initial position of the first base 422a" refers to the position of the first base 422a when the first actuating wire 4261c is in the first configuration.

[0191] In some embodiments, the first restoring member 4201 may be disposed on the circumferential outer side of the first base 422a. Figure 8 One or more first restoration members 4201 may be provided on the side of the first side plate 422a2 facing away from the second side plate 422a3 (that is, on the outer side of the first side plate 422a2), and one or more first restoration members 4201 may be provided on the side of the second side plate 422a3 facing away from the first side plate 422a2 (that is, on the outer side of the second side plate 422a3).

[0192] See also Figure 9b The first restoration member 4201 located outside the first side plate 422a2 and the first actuating unit 4261 located outside the first side plate 422a2 are parallel to the optical axis (ie, Figure 9b Similarly, the first resetting member 4201 located outside the second side plate 422a3 and the first actuating unit 4261 located outside the second side plate 422a3 may also be arranged in a direction parallel to the optical axis.

[0193] In this way, the space on the circumferential outer side of the first seat body 422a can be fully utilized, and the overlapping size of the first reset member 4201 and the first seat body 422a in the optical axis direction can be reduced, thereby reducing the overall volume of the camera drive assembly 42 and realizing a miniaturized design of the camera drive assembly 42.

[0194] When a plurality of first restoring members 4201 are provided on the outer side of the first side plate 422a2, the plurality of first restoring members 4201 on the outer side of the first side plate 422a2 can be arranged in the circumferential direction of the first base body 422a, or can be arranged in the optical axis direction of the lens 41. The arrangement of the plurality of first restoring members 4201 on the outer side of the second side plate 422a3 can be the same as the arrangement of the plurality of first restoring members 4201 on the outer side of the first side plate 422a2.

[0195] For further information, see Figure 9bThe first restoring member 4201 on the outside of the first side plate 422a2 is located on the side of the first actuating unit 4261 on the outside of the first side plate 422a2, away from the base 421. This prevents interference between the first actuating wire 4261c and the first restoring member 4201 when it sags after power is removed, thereby improving the operational reliability of the camera driving assembly 42.

[0196] Of course, it is understandable that, in other embodiments, the first restoring member 4201 may also be disposed on the end surface of the first seat body 422a facing away from the base 421. In other words, the first restoring member 4201 may be disposed on the top of the first seat body 422a.

[0197] In some embodiments, see Figure 9b The first restoring member 4201 includes a first connecting portion 4201a, a second connecting portion 4201b, and an elastic deformation portion 4201c. The elastic deformation portion 4201c is connected between the first connecting portion 4201a and the second connecting portion 4201b. The first connecting portion 4201a is fixedly connected to the base 421, and the second connecting portion 4201b is fixedly connected to the first base 422a.

[0198] Specifically, the first connection portion 4201a can be fixedly connected to the base 421 via the first fixing boss 429. The second connection portion 4201b can be fixedly connected to the first side plate 422a2 or the second side plate 422a3. For example, the second connection portion 4201b can be fixedly connected to the first fixing area n1 of the first side plate 422a2.

[0199] In some embodiments, the expansion and contraction direction of the first restoring member 4201 is parallel to the XY plane. For example, the expansion and contraction direction of the first restoring member 4201 is parallel to the first direction e1. That is, the expansion and contraction direction of the elastic deformation portion 4201c is parallel to the first direction e1. This prevents the first restoring member 4201 from generating any force components other than those in the first direction e1 after deformation, ensuring that the elastic deformation portion 4201c only provides the first base 422a with a force extending along the first direction e1. This prevents shaking of the first base 422a during the restoration process, ensuring a smooth restoration of the first base 422a.

[0200] For further information, see Figure 8 Combined with Figure 9b The camera module 40 further includes a second restoring member 4202 connected to the second base 422b and the base 421. The second restoring member 4202 is configured to apply a force to the second base 422b to restore the second base 422b after the second actuating assembly 426b drives the second base 422b to move relative to the first base 422a. The second restoring member 4202 can apply a force parallel to the XY plane to the second base 422b.

[0201] The second restoring member 4202 may be an elastic structural member, for example, a spring or a bellows.

[0202] See also Figure 8 The second restoring member 4202 can be disposed on the circumferential outer side of the second base 422b. Specifically, one or more second restoring members 4202 can be disposed on the outer sides of the third side plate 422b2 and the fourth side plate 422b3. Alternatively, the second restoring member 4202 can also be disposed on the side of the second base 422b facing away from the base 421.

[0203] The structure and operating principle of the second restoring member 4202 can be the same as those of the first restoring member 4201. The positional relationship between the second restoring member 4202 and the second actuating wire 4262c can be designed with reference to the positional relationship between the first restoring member 4201 and the first actuating wire 4261c. The connection between the second restoring member 4202 and the base 421 and the second base 422b can be designed with reference to the connection between the first restoring member 4201 and the base 421 and the first base 422a. This will not be further elaborated here.

[0204] Based on any of the above examples, please refer to Figure 13 , Figure 13 for Figure 9a The side view of the camera drive assembly 42 is shown. Figure 13 The side view shown is a schematic diagram of looking from the first side plate 422a2 to the second side plate 422a3.

[0205] When the first actuating wire 4261c is de-energized, that is, when the first actuating wire 4261c is in the first state, the vertical distance between the first end A of the first actuating wire 4261c (that is, the end of the first actuating wire 4261c fixed relative to the base 421) and the reference plane m is equal to the vertical distance between the second end B of the first actuating wire 4261c (that is, the end of the first actuating wire 4261c fixed relative to the first base 422a) and the reference plane m. In this case, the line connecting the first end A and the second end B is parallel to the XY plane. Specifically, the line connecting the first end A and the second end B can be parallel to the first direction e1.

[0206] Reference plane m is perpendicular to the optical axis of lens 41 and is located on the side of first actuation line 4261c closest to base 421. In other words, reference plane m is parallel to the XY plane. The angles between the two first actuation lines 4261c of the two first actuation units 4261 and the XY plane are the same.

[0207] For details, please refer to Figure 13The distance between the first end A of the first actuating line 4261c and the reference plane m is a first distance d1, and the distance between the second end B of the first actuating line 4261c and the reference plane m is a second distance d2. The first distance d1 may be equal to the second distance d2.

[0208] In this way, on the one hand, when the first actuating wire 4261c is energized and contracted, the first actuating wire 4261c can apply a force along the first direction e1 to the first seat body 422a, so that the first seat body 422a and the carrier 423 carrying the lens 41 can move along the first direction e1 to achieve optical image stabilization; on the other hand, it can reduce the space occupied by the first actuating unit 4261 in the Z-axis direction, which is beneficial to reducing the height of the camera driving component 42 and the camera module 40, so that when the camera driving component 42 is applied to the electronic device 100, it is beneficial to reduce the thickness of the electronic device 100 and realize a lightweight and thin design of the electronic device 100.

[0209] In addition, since the line connecting the first end A and the second end B is parallel to the XY plane when the first actuating wire 4261c is not energized, the force generated after the first actuating wire 4261c is energized does not have a component force along the optical axis direction of the lens 41, which can prevent the first seat body 422a from moving relative to the base 421 along the optical axis direction toward a direction away from the base 421 during the anti-shake process, and can further improve the stability of the first seat body 422a moving relative to the base 421 along the first direction e1, and can prevent the anti-shake process from interfering with the focusing process, which is not only beneficial to improving the accuracy of the anti-shake compensation movement and the focusing accuracy, but also can improve the clarity of the image captured by the camera module 40, and can also make the anti-shake process and the focusing process independent of each other, so that precise anti-shake and precise focusing can be achieved at the same time.

[0210] When the second actuating wire 4262c is not energized, the line connecting the ends of the second actuating wire 4262c connecting the third fixing member 4262a and the fourth fixing member 4262b can also be parallel to the XY plane. For example, the line connecting the ends of the second actuating wire 4262c connecting the third fixing member 4262a and the fourth fixing member 4262b is parallel to the second direction e2. The two second actuating wires 4262c of the two second actuating units 4262 have the same angle with the XY plane.

[0211] See also Figure 14 Combined with Figure 15 , Figure 14 for Figure 12 The cross-sectional view of the camera driving assembly 42 at line CC is shown. Figure 15 for Figure 12The camera drive assembly 42 is shown in a cross-sectional view taken along line DD. A first guide groove C31 is defined between the base 421 and the first base 422a. A first guide member C32 is disposed within the first guide groove C31. The first guide groove C31 extends along a first direction e1. When the first base 422a moves relative to the base 421 in the first direction e1, the first guide member C32 and the first guide groove C31 move relative to each other in the first direction e1. For example, the base 421, the first guide member C32, and the first base 422a are arranged sequentially along the optical axis of the lens 41.

[0212] In this way, the first guide member C32 can be used to limit and guide the movement direction of the first seat body 422a relative to the base 421, ensuring that the first seat body 422a can move linearly relative to the base 421 along the first direction e1, avoiding deviation in the movement direction of the first seat body 422a, thereby improving the stability of the movement of the first seat body 422a relative to the base 421, and reducing the deviation between the target position and the actual position of the first seat body 422a during the anti-shake process, thereby improving the control accuracy of the anti-shake compensation movement.

[0213] See also Figure 14-15 In this embodiment, a portion of the first guide groove C31 is formed in the base 421, and another portion is formed in the first base body 422a. It is understood that in other embodiments, the entire first guide groove C31 may be formed in the base 421, or the entire first guide groove C31 may be formed in the first base body 422a.

[0214] In order to further improve the stability of the movement of the first base 422a relative to the base 421, in some embodiments, please refer to Figure 16 , Figure 16 for Figure 12 The top view of the base 421 and the first guide member C32 in the camera driving assembly 42 is shown. There are multiple first guide grooves C31, and the multiple first guide grooves C31 are arranged at intervals along the circumference of the base 421. For example, please refer to Figure 16 There may be four first guide grooves C31, and the four first guide grooves C31 may be respectively provided at the four corners of the base 421. The depths of the plurality of first guide grooves C31 in the optical axis direction of the lens 41 may be the same.

[0215] In some embodiments, see Figure 16, the first guide member C32 is a ball. One or more balls can be set in each first guide groove C31. The size of the balls in different first guide grooves C31 can be the same. When the first seat 422a moves along the first direction e1 relative to the base 421, the balls can roll along the first direction e1 in the first guide groove C31. In this way, not only can the movement direction of the first seat 422a be guided by the first guide member C32, but the friction between the first seat 422a and the base 421 can also be reduced, thereby reducing the deviation between the target position and the actual moving position of the first seat 422a during the anti-shake process, and improving the control accuracy of the anti-shake process, thereby reducing the shake amount of the lens 41 and improving the shooting effect.

[0216] It is understood that in other embodiments, the first guide member C32 may also be a guide rod extending along the first direction e1. In this case, the first guide member C32 may be fixedly connected to one of the base 421 and the first base body 422a, with at least a portion of the first guide groove C31 formed on the other of the first base body 422a and the base 421. When the first base body 422a moves relative to the base 421 along the first direction e1, the first guide member C32 and the first guide groove C31 can move relative to each other in the first direction e1.

[0217] Please continue reading Figure 14-15 A second guide groove C41 is defined between the first base 422a and the second base 422b. A second guide member C42 is disposed within the second guide groove C41. The second guide groove C41 extends along the second direction e2. Specifically, the first base 422a, the second guide member C42, and the second base 422b are sequentially arranged along the optical axis of the lens 41. When the second base 422b moves relative to the first base 422a in the second direction e2, the second guide member C42 and the second guide groove C41 move relative to each other in the second direction e2.

[0218] In this way, the second guide member C42 can be used to limit and guide the movement direction of the second base body 422b relative to the first base body 422a, ensuring that the second base body 422b can move linearly along the second direction e2 relative to the first base body 422a, avoiding deviation in the movement direction of the second base body 422b, thereby improving the stability of the movement of the second base body 422b relative to the first base body 422a, and reducing the deviation between the target position and the actual position of the second base body 422b during the anti-shake process, thereby improving the control accuracy of the anti-shake compensation movement.

[0219] See also Figure 17 , Figure 17 for Figure 12A top view of the base 421, first base 422a, and second guide member C42 in the camera drive assembly 42 is shown. Multiple second guide grooves C41 are provided, spaced apart along the circumference of the first base 422a. For example, there may be four second guide grooves C41, each located at the four corners of the first base 422a. The depth of the multiple second guide grooves C41 along the optical axis of the lens 41 may be the same.

[0220] The structure of the second guide member C42 can be designed with reference to the structure of the first guide member C32. Specifically, the second guide member C42 can also be a ball or a guide rod.

[0221] When the second guide member C42 is a ball bearing, the ball bearing can roll in the second guide groove C41 along the second direction e2. In this case, when the first guide member C32 is also a ball bearing, a double-layer ball bearing structure can be formed, which can greatly reduce friction during the anti-shake process, thereby reducing the amount of shake of the lens 41 and improving the shooting effect.

[0222] When the second guide member C42 is a guide rod, the second guide member C42 is fixedly connected to one of the first base 422a and the second base 422b, and at least a portion of the second guide groove C41 is formed in the other of the first base 422a and the second base 422b. When the second base 422b moves relative to the first base 422a in the second direction e2, the second guide member C42 and the second guide groove C41 can move relative to each other in the second direction e2.

[0223] In some embodiments, in order to reduce the risk of the first base 422a and the second base 422b being tilted during the anti-shake process, please refer to Figure 18-19 , Figure 18 for Figure 7 The cross-sectional view of the camera drive assembly 42 is shown at line EE. Figure 19 for Figure 18 An enlarged view of the section A area in the cross-sectional view is shown.

[0224] The camera drive assembly 42 also includes a magnetic assembly C2, which includes a first magnetic component C21 and a second magnetic component C22. The first magnetic component C21 is disposed on the second base 422b, and the second magnetic component C22 is disposed on the base 421. The first magnetic component C21 and the second magnetic component C22 are magnetically engaged. The arrangement direction of the first magnetic component C21 and the second magnetic component C22 can be parallel to the optical axis of the lens 41.

[0225] Specifically, the first magnetic component C21 and the second magnetic component C22 are arranged in the Z-axis direction. The first magnetic component C21 can be fixed to at least one of the second supporting plate 422b1, the third side plate 422b2, and the fourth side plate 422b3. One of the first magnetic component C21 and the second magnetic component C22 can be a magnet, and the other can be a magnetic metal part (e.g., iron, stainless steel, etc.) that cooperates with the magnet, or both the first magnetic component C21 and the second magnetic component C22 can be magnets.

[0226] In this way, when the second base body 422b moves relative to the first base body 422a along the second direction e2, the magnetic attraction component C2 generates a magnetic attraction force between the base 421 and the second base body 422b. By utilizing this magnetic attraction force, the second base body 422b can be urged to have a tendency to move toward the base 421 during the movement. In this way, the probability of the moving second base body 422b tilting can be reduced, thereby improving the movement stability of the second base body 422b during the anti-shake process, which is beneficial to improving the control accuracy of the anti-shake process.

[0227] At the same time, since a portion of the second base 422b is located on the side of the first base 422a facing away from the base 421, that is, a portion of the first base 422a is clamped between the second base 422b and the base 421. Figure 19 In the illustrated embodiment, the first supporting plate 422 a 1 of the first base 422 a is clamped between the second supporting plate 422 b 1 of the second base 422 b and the base 421 .

[0228] Therefore, when the first base 422a moves relative to the base 421 along the first direction e1, the magnetic attraction component C2 generates a magnetic attraction force between the base 421 and the second base 422b, which also causes the first base 422a to tend toward the base 421 during movement. In this way, there is no need to provide an additional magnetic attraction structure between the first base 422a and the base 421, which can reduce the probability of the moving first base 422a tilting. This not only improves the movement smoothness of the first base 422a during the anti-shake process, which is conducive to further improving the control accuracy of the anti-shake process, but also reduces the number of structural components of the camera drive assembly 42, simplifies the structure of the camera drive assembly 42, and is conducive to further reducing the overall volume of the camera drive assembly 42, and improving the assembly efficiency of the camera drive assembly 42.

[0229] In some embodiments, in order to increase the magnetic attraction between the second magnetic element C22 and the first magnetic element C21, see Figure 19 The surface of the second magnetic element C22 facing the first base 422 a is exposed on the base 421 .

[0230] To implement the auto-focus function of the camera module 40, refer to Figure 20 , Figure 20 for Figure 9a The diagram shows the assembly of the camera drive assembly 42 and the lens 41. The camera drive assembly 42 also includes a focus drive unit 425. The focus drive unit 425 is used to drive the carrier 423 to move relative to the second base 422b along the axial direction of the lens mounting hole 423a (that is, in the direction of the optical axis O1 of the lens 41). Since the lens 41 is fixedly connected to the carrier 423, when the carrier 423 moves relative to the second base 422b along the optical axis O1 of the lens 41, it can also drive the lens 41 in the carrier 423 to move along the optical axis O1 of the lens 41.

[0231] In this way, under the drive of the focus drive unit 425, the imaging distance between the lens 41 and the image sensor 442 can be changed, so that when shooting objects at different imaging distances, a clear image can be obtained on the image sensor 442, thereby achieving autofocus. In addition, the focus function of the camera module 40 is achieved by driving the carrier 423 to move relative to the second base 422b. The load on the focus drive unit 425 is small, which helps to reduce the volume of the focus drive unit 425. In addition, in this camera drive assembly 42, the second base 422b can serve not only as a fixed part in achieving the autofocus function, but also as a moving part in achieving the optical image stabilization function. This can simplify the structure of the camera drive assembly 42, reduce the volume of the entire camera drive assembly 42, and facilitate the miniaturization design of the camera drive assembly 42.

[0232] There can be one or more focus drive units 425. When there are multiple focus drive units 425, the multiple focus drive units 425 can be arranged at intervals in the circumferential direction of the carrier 423. For example, see Figure 20 There may be two focus drive units 425, and the two focus drive units 425 are arranged opposite each other. For example, the two focus drive units 425 can be symmetrically arranged about the optical axis O1 of the lens 41. In this way, not only can the overall driving force of the focus drive unit 425 on the carrier 423 be improved, but the force uniformity of the carrier 423 can also be improved, thereby improving the movement smoothness of the carrier 423 during the autofocus process, which is conducive to improving the focusing accuracy and improving the shooting clarity of the camera module 40.

[0233] In some embodiments, the focus drive unit 425 may be a voice coil motor (VCM). Figure 20 Combined with Figure 21 , Figure 21 for Figure 9aAn exploded view of the carrier 423, the second base 422, and the focus drive unit 425 in the camera drive assembly 42 is shown. The focus drive unit 425 includes a first magnet 4251 and a coil 4252. The first magnet 4251 can be a magnet or a magnetic steel. The coil 4252 can be wound by a wire. The arrangement direction of the first magnet 4251 and the coil 4252 can be perpendicular to the optical axis O1 of the lens 41. For example, the first magnet 4251 and the coil 4252 can be arranged along the X-axis direction.

[0234] In some embodiments, the first magnet 4251 can be disposed on the second base 422b, and the coil 4252 can be disposed on the carrier 423. In this case, the coil 4252 can move relative to the second base 422b along with the carrier 423. It is understood that in other embodiments of the present application, the first magnet 4251 can also be disposed on the carrier 423, and the coil 4252 can be disposed on the second base 422b. In this case, the first magnet 4251 can move relative to the second base 422b along with the carrier 423. This is sufficient as long as one of the first magnet 4251 and the coil 4252 is disposed on the second base 422b and the other is disposed on the carrier 423.

[0235] In this way, when the coil 4252 is energized, the coil 4252 can drive the carrier 423 to move relative to the second base 422b under the action of the magnetic field provided by the first magnet 4251, so that the carrier 423 can move along the optical axis O1 with the lens 41 to achieve automatic focusing.

[0236] The structure of the focus driving unit 425 is not limited thereto. In other embodiments, the focus driving unit 425 may also be an SMA driving component, as long as the focus driving unit 425 can drive the carrier 423 to move relative to the second base 422b along the optical axis.

[0237] In some embodiments, in order to increase the driving force of the single focus driving unit 425 on the carrier 423, please refer to Figure 21 First magnet 4251 includes a first magnetic portion 4251a, a second magnetic portion 4251b, and a third magnetic portion 4251c. These portions are arranged in a Halbach array to concentrate the magnetic force of first magnet 4251 toward coil 4252. A Halbach array is a permanent magnet arrangement in which permanent magnets with different magnetization directions are arranged in a specific sequence. This significantly increases the magnetic field on one side of the Halbach array while significantly weakens the magnetic field on the other side.

[0238] In this way, the magnetic force of the first magnet 4251 can be concentrated toward the coil 4252 , thereby increasing the driving force of the focus driving unit 425 on the carrier 423 , thereby achieving a balance between the volume and driving force of the first magnet 4251 .

[0239] In some embodiments, see Figure 20 Combined with Figure 21 There are two first magnets 4251, and the two first magnets 4251 can be fixedly connected to the third side plate 422b2 and the fourth side plate 422b3 respectively. Exemplarily, the third side plate 422b2 and the fourth side plate 422b3 are respectively provided with a first mounting groove C1, and the first magnet 4251 can be set in the first mounting groove C1. The first magnet 4251 can be fixedly connected to the first mounting groove C1 by means of clamping, bonding, screw connection, etc. In this way, the overlapping size of the first magnet 4251 and the second base 422b can be reduced, which is conducive to reducing the overall volume of the camera drive assembly 42, and further conducive to realizing the miniaturized design of the camera module 40.

[0240] It is understandable that, in the embodiment where the coil 4252 is disposed on the second base 422 b , the coil 4252 may be disposed on the first mounting groove C1 .

[0241] In some embodiments, the first magnet 4251 in the focus drive unit 425 can be used as the first magnetic component C21. In this case, the first magnet 4251 is arranged on the second base 422b, and the coil 4252 is arranged on the carrier 423. The first magnet 4251 can be magnetically matched with the second magnetic component C22, and can also cooperate with the coil 4252 to drive the carrier 423 to move. In this way, there is no need to set other additional magnets on the second base 422b to magnetically match the second magnetic component C22, which can reduce the number of structural components of the camera drive assembly 42, simplify the structure of the camera drive assembly 42, and reduce the overall volume of the camera drive assembly 42. In addition, it can also avoid the magnetic field generated by the above-mentioned other magnets arranged in the second base 422b from interfering with the coil 4252 in the focus drive unit 425, and can improve the focusing accuracy of the camera module 40.

[0242] On this basis, to further reduce the magnetic interference caused by the magnetic assembly C2 on the focus drive unit 425, the second magnetic assembly C22 is a metal component. Specifically, when there are multiple first magnets 4251, each of the first magnets 4251 can magnetically cooperate with the second magnetic assembly C22. This increases the magnetic attraction of the second magnetic assembly C2, further improving the smoothness of the movement of the second base 422b relative to the first base 422a, and the smoothness of the movement of the first base 422a relative to the base 421, thereby further reducing camera shake and optimizing image quality.

[0243] In order to improve the stability of the movement of the carrier 423 relative to the second base 422b during the autofocus process, please refer to Figure 20-21 The camera drive assembly 42 may further include a sliding assembly 427, which includes a sliding member 4271 and a sliding groove 4272. The sliding member 4271 may be fixedly connected to the second base 422b, and the sliding groove 4272 may be formed in the carrier 423. Alternatively, in other embodiments, the sliding member 4271 may also be fixedly connected to the carrier 423, in which case the sliding groove 4272 may be formed in the second base 422b.

[0244] Since the carrier 423 and the second base body 422b do not move relative to each other in the XY plane, by setting the sliding assembly 427 between the carrier 423 and the second base body 422b, the matching accuracy of the sliding member 4271 and the sliding groove 4272 in the sliding assembly 427 can be improved, thereby ensuring the guiding and limiting functions of the sliding assembly 427.

[0245] See also Figure 20 Combined with Figure 21 The sliding member 4271 is in the shape of an elongated strip. For example, the sliding member 4271 may be cylindrical. The axial direction of the sliding member 4271 is parallel to the optical axis of the lens 41. When the carrier 423 moves relative to the second base 422b along the optical axis of the lens 41, the sliding member 4271 slides in engagement with the slide groove 4272. In some embodiments, at least a portion of the outer peripheral surface of the sliding member 4271 may abut against the wall surface of the slide groove 4272.

[0246] In this way, during the automatic focusing process, the movement direction of the carrier 423 can be restricted and guided by the cooperation between the sliding member 4271 and the sliding groove 4272, ensuring that the carrier 423 can move in a straight line relative to the second base body 422b along the optical axis direction, avoiding the movement direction of the carrier 423 from being offset, thereby improving the stability of the movement of the carrier 423 relative to the base body, and avoiding the carrier 423 from shaking during the automatic focusing process.

[0247] In order to further improve the stability of the carrier 423 moving relative to the base during the autofocus process, there are multiple sliding components 427 , and the multiple sliding components 427 can be arranged at intervals in the circumferential direction of the carrier 423 .

[0248] In some embodiments, see Figure 20The camera driving assembly 42 further comprises an elastic member 4203. Two ends of the elastic member 4203 are connected to the carrier 423 and the second seat 422b respectively. The elastic member 4203 can be located on a side of the second seat 422b away from the base 421. When the carrier 423 moves relative to the second seat 422b along the optical axis direction, the elastic member 4203 can be deformed, so as to balance and buffer the stress of the carrier 423, and make the movement of the carrier 423 more stable.

[0249] For example, the elastic member 4203 can be symmetrically arranged about the optical axis O1 of the lens 41. In this way, when the lens 41 and the carrier 423 move along the optical axis O1 of the lens 41, the elastic member 4203 can produce the same deformation amount, and provide a symmetric elastic force, so as to further improve the stability of the movement of the carrier 423 relative to the seat.

[0250] In some embodiments, the elastic member 4203 can be an electrical connection member. In this case, the elastic member 4203 is electrically connected to the coil 4252, and the elastic member 4203 is electrically connected to the circuit board 441 of the camera module 40. For example, a conductive structure can be provided on the second seat 422b, and the elastic member 4203 is electrically connected to the circuit board 441 through the conductive structure.

[0251] The conductive structure has various implementation manners. For example, the conductive structure can be a conductive lead formed by electroplating. For another example, the conductive structure can be a conductive member formed by embedding metal through insert molding. In this way, the elastic member 4203 not only has the functions of buffering and balancing the stability of the movement of the carrier 423, but also has the function of electrical connection.

[0252] Further, the elastic member 4203 can also be electrically connected to the driving structure of the variable aperture 43, so that the signal of the variable aperture 43 can be transmitted to the circuit board 441 through the elastic member 4203, and the variable aperture 43 and the focusing driving unit 425 can share one electrical connection member to realize electrical connection with the circuit board 441. In this way, the structure of the camera driving assembly 42 can be simplified.

[0253] It can be understood that, in the embodiments in which the camera driving assembly 42 does not comprise the variable aperture 43, the elastic member 4203 can be a non-electrical connection member, or the camera driving assembly 42 can not comprise the elastic member 4203. In this case, the first magnet 4251 can be arranged on the carrier 423, and the coil 4252 can be arranged on the second seat 422b. The coil 4252 can be electrically connected to the circuit board 441 of the camera module 40 through the above-mentioned conductive structure in the second seat 422b.

[0254] In some embodiments, see Figure 21 The camera drive assembly 42 further includes a first metal member 4281, which is configured to magnetically engage with the first magnet 4251. One of the first metal member 4281 and the first magnet 4251 is disposed on the carrier 423, and the other is disposed on the second base 422b. For example, the first metal member 4281 may be an iron sheet, a magnetic steel sheet, or the like. The arrangement direction of the first metal member 4281 and the first magnet 4251 is perpendicular to the optical axis O1 of the lens 41.

[0255] In this way, the first magnet 4251 can generate a magnetic attraction force on the first metal part 4281. Under the action of this magnetic attraction force, the carrier 423 has a tendency to move toward the second base body 422b during the process of moving relative to the second base body 422b along the optical axis O1 of the lens 41, so that the sliding member 4271 and the sliding groove 4272 can maintain abutment, which can improve the guiding and limiting effect of the sliding component 427 on the carrier 423, thereby further improving the stability of the movement of the carrier 423 relative to the second base body 422b during the autofocus process.

[0256] In addition, since the first metal part 4281 and the coil 4252 can both cooperate with the first magnet 4251, that is, the first metal part 4281 and the coil 4252 can reuse the first magnet 4251 in the focus drive unit 425, there is no need to additionally set other magnets to cooperate with the first metal part 4281, which can avoid the magnetic field generated by other magnets from interfering with the coil 4252, thereby improving the focusing accuracy of the camera module 40, reducing the number of structural parts, simplifying the structure of the camera drive component 42, and thus helping to reduce the overall volume of the camera drive component 42 and realize the miniaturized design of the camera drive component 42.

[0257] In some embodiments, see Figure 19 The first metal member 4281 can be located on the side of the coil 4252 facing away from the first magnet 4251. To reduce the overlapping size of the first metal member 4281 and the carrier 423, the first metal member 4281 can be embedded in the carrier 423. For example, the first metal member 4281 and the carrier 423 can be connected by bonding, clamping, screw connection, insert molding, etc.

[0258] To enhance the magnetic attraction between the first metal member 4281 and the first magnet 4251, at least a portion of the surface of the first metal member 4281 facing the first magnet 4251 is exposed to the carrier 423. Specifically, the entire surface of the first metal member 4281 facing the first magnet 4251 is exposed to the carrier 423, or a portion of the surface of the first metal member 4281 facing the first magnet 4251 is exposed to the carrier 423.

[0259] In some embodiments, in order to achieve electrical connection between the first actuating assembly 426a, the second actuating assembly 426b, the focus driving unit 425, the variable aperture 43 and the circuit board 441. Figure 19 The camera driving component 42 also includes a first electrical connection structure 4204 , which can be embedded in the base 421 .

[0260] See also Figure 22 , Figure 22 for Figure 9a 1 is an exploded view of the base 421 and the first electrical connection structure 4204 in the camera driving assembly 42. The first electrical connection structure 4204 may be provided with a plurality of pins 4204a and may be electrically connected to the circuit board 441 via the plurality of pins 4204a.

[0261] In some embodiments, the first electrical connection structure 4204 can be a metal plate. In this case, the first electrical connection structure 4204 can be reused as the second magnetic component C22. In other words, the second magnetic component C22 can be used to magnetically engage with the first magnetic component C21 and also to establish electrical connections between the anti-shake driver 426, the focus driver 425, the variable aperture 43, and the circuit board 441. This can reduce the number of components in the camera driver assembly 42 and simplify its structure.

[0262] In some embodiments, to achieve electrical connection between the first actuating unit 4261 and the circuit board 441, a first flexible electrical connector is provided on the surface of the first restoring member 4201. The first flexible electrical connector is electrically connected to the first electrical connection structure 4204 and is also electrically connected to the first actuating unit 4261. For example, the first flexible electrical connector can be a flexible circuit board. The shape of the first flexible electrical connector can be the same as that of the first restoring member 4201. This allows the signal from the first actuating wire 4261c to be conducted to the circuit board 441 via the first flexible electrical connector, resulting in a simple structure and an ingenious design.

[0263] It is understandable that, in other embodiments, multiple first restoring members 4201 may be provided on the outer side of the first side plate 422a2 , and the electrical connection between the first actuating unit 4261 and the first electrical connection structure 4204 may be achieved through the multiple first restoring members 4201 .

[0264] The electrical connection between the second actuating unit 4262 and the circuit board 441 may be designed with reference to the electrical connection between the first actuating unit 4261 and the circuit board 441 , and will not be described in detail here.

[0265] In some other embodiments, see Figure 23 , Figure 23 An assembly side view of the camera driving assembly 42 and the lens 41 is provided for another embodiment of the present application. The camera driving assembly 42 in the embodiment is different from the camera driving assembly 42 shown in Figure 9a in that the first actuating wire 4261c in the embodiment is not parallel to the XY plane.

[0266] Specifically, referring to Figure 23 , when the first actuating wire 4261c is in the first form, i.e., when the first actuating wire 4261c is not powered, the vertical distance d1 between the first end A of the first actuating wire 4261c and the reference plane m is less than the vertical distance d2 between the second end B of the first actuating wire 4261c and the reference plane m. Specifically, in the direction parallel to the optical axis O1 of the lens 41, the second end B is located on the side of the first end A away from the base 421.

[0267] Referring to Figure 24 , Figure 24 for Figure 23 the schematic diagram of the first actuating wire 4261c in the camera driving assembly 42 shown in changing between the first form and the second form. For the sake of distinction, the first actuating wire 4261c in the first form, i.e., the first actuating wire 4261c in the uncontracted state, is represented by a dashed line in Figure 24 , and the first actuating wire 4261c in the second form, i.e., the first actuating wire 4261c after contraction, is represented by a solid line. When the first actuating wire 4261c is in the first form, the line connecting the first end A and the second end B can form the hypotenuse of a right triangle ABH. When the first actuating wire 4261c is in the second form, the line connecting the first end A and the second end B can form the hypotenuse of a right triangle AB’F.

[0268] wherein the length of the hypotenuse of the right triangle ABH is a, the length of the right angle side AH is b, and the length of the right angle side BH is c. The length of the hypotenuse of the right triangle AB’F is a1, the length of the right angle side AF is b1, and the length of the right angle side B’F is c.

[0269] The length a of the first actuating wire 4261c before contraction is taken as 10 mm, and the length of the first actuating wire 4261c after contraction under the action of heat is reduced by 1%; the angle θ between the first actuating wire 4261c and the XY plane before contraction is taken as 15° as an example to illustrate the stroke of the first actuating assembly 426a. It should be noted that the above values do not constitute a limitation on the structural size of the first actuating assembly 426a.

[0270] The calculation process of the stroke △b of the first actuating assembly 426a can be:

[0271] c=a*sinθ=10*sin15°=2.5882mm;

[0272] a1=a*(1-1%)=10*0.99=9.9mm;

[0273]

[0274] △b=b-b1=0.1036mm≈104μm;

[0275] △b / b=0.1036 / 9.6593≈1.1%.

[0276] From the above calculation results, it can be seen that the second end B of the first actuating wire 4261c is set on the side of the first end A away from the base 421, that is, after the first actuating wire 4261c is tilted relative to the XY plane, when the length of the first actuating wire 4261c shrinks by 0.1 mm, the stroke △b of the first actuating component 426a is 0.1036 mm, which is approximately 104 μm. The stroke of the first actuating component 426a is greater than the actual contraction length of the first actuating wire 4261c.

[0277] In this way, a smaller contraction of the first actuating wire 4261c allows the first actuating assembly 426a to produce a larger anti-shake travel Δb. This allows for a wider anti-shake compensation range within the linear contraction region of the first actuating wire 4261c, alleviating the limitation of optical image stabilization technology by the linear contraction region of the first actuating wire 4261c. Furthermore, the space occupied by the first actuating wire 4261c circumferentially around the first base 422a is reduced, thereby reducing the width and / or length of the camera driver assembly 42 and the camera module 40 and facilitating the assembly of the camera module 40 within the electronic device 100. Furthermore, given the same anti-shake travel, the smaller contraction of the first actuating wire 4261c in this embodiment shortens the contraction time of the first actuating wire 4261c, improving the anti-shake efficiency and effect of the anti-shake driver 426, and thus significantly enhancing the image quality of the camera module 40.

[0278] In addition, by setting the second end B of the first actuating wire 4261c on the side of the first end A away from the base 421, that is, the second end B is farther away from the base 421 than the first end A, the force generated after the first actuating wire 4261c is energized has a component force parallel to the optical axis O1 of the lens 41 and directed from the first base 422a to the base 421. This component force can pull the first base 422a to move along the optical axis O1 toward the base 421, so that the first base 422a can press the base 421 during the anti-shake process. In this way, the first seat body 422a can be prevented from moving relative to the base 421 along the optical axis O1 in the direction away from the base 421 during the anti-shake process, the smoothness of the movement of the first seat body 422a relative to the base 421 along the XY plane can be improved, and the anti-shake process can be prevented from interfering with the focusing process, which is not only beneficial to improving the accuracy of the anti-shake compensation movement and the focusing accuracy, but also can improve the clarity of the image captured by the camera module 40, and can also make the anti-shake process and the focusing process independent of each other, so that accurate anti-shake and accurate focusing can be achieved at the same time.

[0279] In some embodiments, when the first actuating wire 4261c is de-energized, the angle between the line connecting the first end A and the second end B of the first actuating wire 4261c and the XY plane is less than or equal to 30 degrees. For example, when the first actuating wire 4261c is de-energized, the angle between the line connecting the first end A and the second end B of the first actuating wire 4261c and the XY plane can be 30 degrees, 28 degrees, 26 degrees, 24 degrees, 22 degrees, 20 degrees, 18 degrees, 15 degrees, 12 degrees, 10 degrees, 8 degrees, 6 degrees, 4 degrees, 2 degrees, 1 degree, etc. In this way, the space occupied by the anti-shake driver 426 can be reduced while ensuring that the anti-shake driver 426 has a larger anti-shake compensation range.

[0280] It is understood that the arrangement of the first actuating wire 4261c in this embodiment can be applied to the camera driving assembly 42 in any embodiment of the present application. In addition, the arrangement of the second actuating wire 4262c in this embodiment can be the same as the arrangement of the first actuating wire 4261c in this embodiment, or can be the same as the arrangement of the first actuating wire 4261c in this embodiment. Figure 9a The arrangement of the first actuating wires 4261c in the camera driving assembly 42 in the illustrated embodiment is the same, as long as the angles between the two second actuating wires 4262c arranged opposite to each other and the XY plane are equal.

[0281] Other structures of the camera driving component 42 in the embodiment of the present application can be designed with reference to the camera driving component 42 in any of the above embodiments and will not be described in detail here.

[0282] As described in the above embodiments, when the camera driver assembly 42 of the present embodiment is applied to the camera module 40 and the electronic device 100, it can effectively improve the control accuracy of the camera module 40's anti-shake process, reduce the control difficulty of the anti-shake process, and reduce the energy consumption of the camera driver assembly 42. Furthermore, the anti-shake driver 426 of the present embodiment has a small size and high driving force, which can solve the problem of voice coil motors in the related art being limited by power consumption and unable to significantly increase driving force. This can also broaden the application range of the camera driver assembly 42, enabling it to meet the driving requirements of heavy camera modules 40 (mass greater than or equal to 500 mg). At the same time, it can also prevent magnetic interference between the anti-shake driver 426 and the focus drive unit 425, thereby improving the focus accuracy and anti-shake accuracy of the camera driver assembly 42. Furthermore, it can also reduce the interference caused by the signal on the actuation line on the image sensor 442, thereby improving the image quality of the camera module 40.

[0283] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0284] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A camera driver component, characterized in that: include: base; a first seat body, the first seat body being disposed on the base; a second base body, the second base body being disposed on the first base body, and at least a portion of the second base body being located on a side of the first base body facing away from the base; A carrier having a lens mounting hole, wherein the carrier is disposed on the second base; a first actuating assembly, configured to drive the first seat to move relative to the base in a first direction, wherein a portion of the first actuating assembly is connected to the first seat, and another portion is fixed relative to the base; a second actuating assembly, configured to drive the second seat to move relative to the first seat in a second direction, wherein a portion of the second actuating assembly is connected to the second seat, and another portion is fixed relative to the base; Wherein, the first direction and the second direction are both perpendicular to the axial direction of the lens mounting hole, and the first direction is perpendicular to the second direction.

2. The camera driving assembly according to claim 1, wherein: The first actuating assembly includes two first actuating units, the two first actuating units are arranged opposite to each other and spaced apart in the second direction, and each first actuating unit includes: a first fixing member, the first fixing member being fixed relatively to the base; a second fixing member, the second fixing member being fixedly connected to the first base, and the second fixing member and the first fixing member being spaced apart from each other in the first direction; The first actuating wire is a shape memory alloy wire, and the first actuating wire is connected to the first fixing member and the second fixing member.

3. The camera driving assembly according to claim 2, characterized in that: The first base includes a first side plate and a second side plate that are arranged opposite to each other in the second direction, and the first side plate and the second side plate are both located on the circumferential outer side of the carrier; One of the two first actuating units is located on a side of the first side plate facing away from the second side plate, and the other first actuating unit is located on a side of the first side plate facing away from the second side plate.

4. The camera driving assembly according to claim 3, wherein: The surface of the first side plate facing away from the second side plate includes a first fixing area and a first avoidance area, the first avoidance area is recessed toward the carrier relative to the first fixing area, the first fixing member of the first actuating unit is fixedly connected to the first fixing area, and in the second direction, the first actuating line is opposite to and spaced apart from the first avoidance area.

5. The camera driving assembly according to any one of claims 2 to 4, characterized in that: The first actuating wire includes a first end and a second end, the first end is connected to the first fixing member, and the second end is connected to the second fixing member; When the first actuating wire is not energized, the vertical distance between the first end and the reference plane is less than or equal to the vertical distance between the second end and the reference plane; wherein, the reference plane is perpendicular to the axial direction of the lens mounting hole, and the reference plane is located on the side of the first actuating wire close to the base.

6. The camera driving assembly according to claim 5, characterized in that: When the first actuating wire is not energized, the vertical distance between the first end and the reference plane is smaller than the vertical distance between the second end and the reference plane, and the angle between the line connecting the first end to the second end and the reference plane is less than or equal to 30 degrees.

7. The camera driving assembly according to any one of claims 2 to 6, characterized in that: It comprises a plurality of first restoring members, which are used to apply a force to the first seat body after the first seat body moves relative to the base along the first direction, so as to restore the first seat body.

8. The camera driving assembly according to claim 7, wherein: The first base includes a first side plate, and the first side plate is located on the circumferential outer side of the carrier; At least one first restoring member is disposed on a side of the first side plate facing away from the carrier.

9. The camera driving assembly according to any one of claims 1 to 8, characterized in that: The second actuating assembly includes two second actuating units, the two second actuating units are spaced apart in the first direction, and each second actuating unit includes: a third fixing member, the third fixing member being fixed relatively to the base; a fourth fixing member, the fourth fixing member being fixedly connected to the second base, and the fourth fixing member and the third fixing member being spaced apart in the second direction; The second actuating wire is a shape memory alloy wire, and two ends of the second actuating wire are respectively connected to the first fixing member and the second fixing member.

10. The camera driving assembly according to claim 9, characterized in that: The second base includes a third side plate and a fourth side plate that are arranged opposite to each other in the first direction, and the third side plate and the fourth side plate are located on the circumferential outer side of the carrier; One of the two second actuating units is located on a side of the third side plate facing away from the fourth side plate, and the other second actuating unit is located on a side of the fourth side plate facing away from the third side plate.

11. The camera driving assembly according to any one of claims 1 to 10, characterized in that: The first base body includes a first side plate and a second side plate arranged opposite to each other in the second direction, and the second base body includes a third side plate and a fourth side plate arranged opposite to each other in the first direction. The first side plate, the third side plate, the second side plate, and the fourth side plate are arranged in sequence in the circumferential direction of the carrier and enclose an installation space, and the carrier is arranged in the installation space.

12. The camera driving assembly according to claim 11, wherein: A first guide groove is provided between the first seat body and the base, and the first guide groove extends along the first direction; The first guide member is disposed in the first guide groove. When the first seat moves relative to the base along the first direction, the first guide member moves relative to the first guide groove along the first direction.

13. The camera driving assembly according to claim 12, wherein: The first guide member is a ball or a guide rod.

14. The camera driving assembly according to any one of claims 1 to 13, characterized in that: A second guide groove is provided between the first base and the second base, and the second guide groove extends along the second direction; The second guide member is arranged in the second guide groove. When the second seat moves relative to the first seat along the second direction, the second guide member and the second guide groove move relative to each other in the second direction.

15. The camera driving assembly according to any one of claims 1 to 14, characterized in that: include: a focus drive unit, the focus drive unit comprising a first magnet and a coil, wherein one of the first magnet and the coil is disposed on the second base, and the other is disposed on the carrier; The first magnet cooperates with the coil to drive the carrier to move relative to the second base along the axial direction of the lens mounting hole.

16. The camera driving assembly according to claim 15, characterized in that: include: A sliding assembly, the sliding assembly includes a sliding member and a sliding groove, the sliding member is arranged on one of the base body and the carrier, and the sliding groove is arranged on the other of the base body and the carrier. When the carrier moves axially along the lens mounting hole relative to the second base body, the sliding member slides in cooperation with the sliding groove.

17. The camera driving assembly according to claim 16, wherein: include: A first metal part, the first metal part is magnetically engaged with the first magnet, the arrangement direction of the first metal part and the first magnet is perpendicular to the axial direction of the lens mounting hole, one of the first metal part and the first magnet is arranged on the second seat, and the other is arranged on the carrier.

18. The camera driving assembly according to any one of claims 1 to 17, characterized in that: The invention also includes a magnetic attraction component, wherein the magnetic attraction component includes a first magnetic attraction component and a second magnetic attraction component, wherein the first magnetic attraction component and the second magnetic attraction component are magnetically matched, and the first magnetic attraction component and the second magnetic attraction component are arranged in the axial direction of the lens mounting hole; The first magnetic member is disposed on the second seat, and the second magnetic member is disposed on the base.

19. A camera module, characterized in that: include: A camera driving component, wherein the camera driving component is the camera driving component according to any one of claims 1 to 18; A lens, the lens being mounted in the lens mounting hole; An image sensor is disposed on a side of the base facing away from the first base body.

20. The camera module according to claim 19, wherein: include: A circuit board is located on a side of the base facing away from the first base body, and the image sensor is arranged on a side of the circuit board facing the base.

21. An electronic device, characterized in that: include: A screen, comprising a light-transmitting cover plate and a display screen arranged in a stacked manner; A back shell, comprising a back cover and a frame, wherein the back cover and the light-transmitting cover are respectively fixed to opposite ends of the frame, and the light-transmitting cover, the back cover and the frame enclose a receiving space; A camera module, wherein the camera module is arranged in the accommodating space, the light incident surface of the camera module faces the back cover or the screen, and the camera module is the camera module described in claim 19 or 20.

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