Camera module and electronic device

Abstract

The application provides a camera module and an electronic device. The camera module comprises a lens, an SMA motor, a substrate and an image sensor. The SMA motor comprises a carrier, a seat and an SMA driving assembly. The lens is fixed to the carrier. The SMA driving assembly connects the carrier and the seat. The SMA driving assembly is used to drive the carrier to move relative to the seat. The shell of the SMA motor comprises a top plate and a bottom plate arranged oppositely. The bottom plate comprises a first part and four second parts. The four second parts are arranged at the outer circumferential side of the first part at intervals. The distance between the second part and the top plate is greater than the distance between the first part and the top plate. The four corners of the substrate are provided with recessed avoiding spaces. The first part is fixed to the substrate. The second part is at least partially located in the avoiding space. The image sensor is fixed to the middle part of the substrate and electrically connected to the substrate. The image sensor is arranged to face the lens. The above-mentioned camera module can have a smaller module shoulder height while ensuring the shooting quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera, in particular to a camera module and electronic equipment. BACKGROUND

[0002] At present, electronic equipment such as mobile phones is usually provided with a camera module. The camera module drives the optical lens to move through a motor to realize automatic focusing (AF) and / or optical image stabilization (OIS), thereby ensuring the shooting clarity of the electronic equipment. Among them, the SMA (shape memory alloy) motor is gradually widely used in the camera module based on its characteristics of large driving force and small volume.

[0003] Since the module shoulder height of the camera module affects the overall thickness of the electronic equipment and the shape of the camera decoration piece, the appearance of the mobile phone will be affected, so the camera module pursues a smaller module shoulder height. The module shoulder height of the camera module is mainly affected by the height of the motor. However, if the height of the SMA motor is directly reduced, the driving performance of the SMA motor will be affected, resulting in poor shooting quality of the camera module. Therefore, how to reduce the module shoulder height of the camera module while ensuring the shooting quality of the camera module is an important direction for manufacturers to research. SUMMARY

[0004] The embodiments of the present application provide a camera module and electronic equipment. The camera module can have a smaller module shoulder height while ensuring the shooting quality, which is beneficial to the thin design of the electronic equipment.

[0005] To achieve the above object, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, the present application provides a camera module. The camera module comprises a lens and an SMA motor. The SMA motor comprises a carrier, a seat body and an SMA driving assembly. The lens is fixed to the carrier. The SMA driving assembly connects the carrier and the seat body. The SMA driving assembly is used to drive the carrier to move relative to the seat body to realize automatic focusing and / or optical image stabilization.

[0007] The SMA motor further comprises a top plate and a bottom plate arranged oppositely. The carrier, the seat body and the SMA driving assembly are located between the top plate and the bottom plate. The bottom plate is provided with a first through hole facing the lens. The bottom plate comprises a first part and four second parts. The first part is arranged around the first through hole. The four second parts are arranged on the outer circumferential side of the first part at intervals. The distance between the second part and the top plate is greater than the distance between the first part and the top plate.

[0008] The camera module further comprises a substrate and an image sensor, the substrate is provided with a recessed avoiding space at four corners, the first part is fixed to the substrate, the second part is at least partially located in the avoiding space, the image sensor is fixed to the middle part of the substrate and electrically connected to the substrate, and the image sensor faces the lens.

[0009] In the present application, the SMA motor has simple structure, large driving force and small volume, can realize automatic focusing and optical image stabilization, and can reduce the volume of the camera module.

[0010] In the present application, the shoulder height H of the camera module, the height H1 of the SMA motor in the third direction, the thickness H2 of the substrate in the third direction, and the depth T of the second part of the bottom plate extending into the avoiding space of the substrate satisfy H = H1 + H2 - T. The depth T of the second part of the bottom plate extending into the avoiding space of the substrate refers to the distance between the surface of the second part of the bottom plate away from the top plate and the surface of the first part of the substrate close to the bottom plate in the third direction.

[0011] In the present application, the bottom plate of the SMA motor adopts a stepped structure, so that the distance between the second part of the bottom plate and the top plate is large, to ensure the driving performance of the SMA motor, thereby ensuring the shooting quality of the camera module; at the same time, the distance between the first part of the bottom plate and the top plate is small, the first part of the bottom plate is fixed to the substrate, and the second part of the bottom plate is embedded in the avoiding space of the substrate, so that the height of the assembled SMA motor and the photosensitive assembly is small, thereby effectively reducing the shoulder height of the camera module, realizing the thinness of the camera module, and reducing the influence on the overall thickness and appearance modeling of the electronic device using the camera module.

[0012] In some embodiments, the first distance between the surface of the second part of the bottom plate away from the top plate and the surface of the top plate away from the bottom plate is slightly smaller than the second distance between the surface of the substrate away from the top plate and the surface of the top plate away from the bottom plate, to reserve the assembly tolerance of the SMA motor and the photosensitive assembly in the third direction while reducing the shoulder height of the camera module, thereby improving the assembly precision of the camera module. In other embodiments, the surface of the second part of the bottom plate away from the top plate can also be flush with the surface of the substrate away from the top plate, to further reduce the shoulder height of the camera module. In other words, the depth T of the second part of the bottom plate extending into the avoiding space of the substrate can be close to the sum of the thickness of the substrate and the first adhesive layer, and in some embodiments, the shoulder height of the camera module can be reduced by about 0.4mm to 0.6mm in thickness compared with the conventional scheme, for example, by about 0.5mm in thickness.

[0013] In some possible implementation manners, the SMA driving assembly includes four groups of driving units, which are evenly arranged around the circumference of the carrier. Each group of driving units includes a pair of movable clamping jaws, a pair of fixed clamping jaws, and two SMA wires. The pair of movable clamping jaws are fixed to the carrier, the pair of fixed clamping jaws are fixed to the seat body, the pair of movable clamping jaws and the pair of fixed clamping jaws are arranged at intervals along the circumference of the carrier, and the two SMA wires are connected between the pair of movable clamping jaws and the pair of fixed clamping jaws in a cross manner. Along the circumference of the carrier, the pair of movable clamping jaws of adjacent two groups of driving units are arranged adjacent to each other, or the pair of fixed clamping jaws of adjacent two groups of driving units are arranged adjacent to each other.

[0014] In some possible implementation manners, the pair of movable clamping jaws includes a first movable clamping jaw and a second movable clamping jaw, the second movable clamping jaw is located between the first movable clamping jaw and the bottom plate, and the second movable clamping jaw is arranged opposite to the second part. At this time, when the second movable clamping jaw is projected on the bottom plate along the third direction, the projection falls on the second part of the bottom plate.

[0015] In the embodiment, the distance between the second part of the bottom plate and the top plate is greater than the distance between the first part and the third part of the bottom plate and the top plate, and the second movable clamping jaw is arranged opposite to the second part of the bottom plate, so that the housing can reduce the distance between the first part and the third part of the bottom plate and the top plate in the case that the distance between the second part of the bottom plate and the top plate is greater than or equal to the sum of the upstroke, the downstroke and the clamping jaw height of the SMA motor, so as to compress the local height of the SMA motor, thereby facilitating the compact arrangement of the SMA motor and other structures when the SMA motor is assembled in the camera module, so as to reduce the shoulder height of the camera module.

[0016] In some embodiments, during the focusing process, when the carrier sinks relative to the seat body, the second movable clamping jaw can partially extend into the first sink.

[0017] In some embodiments, the first fixed clamping jaw can be arranged opposite to the second part of the bottom plate. That is, in the same group of driving units, the second movable clamping jaw is arranged opposite to one of the second parts of the bottom plate, and the first fixed clamping jaw is arranged opposite to another second part of the bottom plate. Since the distance between the second part of the bottom plate and the top plate is large, the arrangement space of the first fixed clamping jaw and the second fixed clamping jaw is sufficient, which facilitates to ensure that the interval between the first fixed clamping jaw and the second fixed clamping jaw in the third direction meets the design requirement.

[0018] In some possible implementation manners, in the same group of driving units, the arrangement directions of the first movable clamping jaw and the second movable clamping jaw are parallel to the optical axis of the lens. The first SMA wire and the second SMA wire are equal in length, and the inclination angles of the first SMA wire and the second SMA wire to the optical axis of the lens are equal in size. The arrangement directions of the first fixed clamping jaw and the second fixed clamping jaw can also be parallel to the optical axis of the lens, that is, parallel to the third direction.

[0019] In the embodiment, the first movable clamping jaw and the second movable clamping jaw have the same structure, and the arrangement directions of the two are parallel to the third direction, so that the SMA motor can be arranged symmetrically up and down, the assembly requirement is reduced, the debugging is easy, and the assembly yield of the SMA motor is high.

[0020] In some possible embodiments, the pair of movable clamping jaws and the pair of fixed clamping jaws of the SMA driving assembly can also be arranged symmetrically left and right, that is, symmetrically relative to the XZ plane or symmetrically relative to the YZ plane, so as to further reduce the assembly requirement and the debugging difficulty and improve the assembly yield of the SMA motor.

[0021] In some possible embodiments, the carrier includes a first side and a fourth side arranged adjacently, and the first side and the fourth side form a first edge line at the intersection. In the same group of driving units, the second movable clamping jaw is closer to the first edge line than the first movable clamping jaw.

[0022] In the embodiment, the movable clamping jaws and the fixed clamping jaws of the SMA driving assembly are arranged asymmetrically up and down, the plurality of SMA wires are translated in a direction perpendicular to the third direction and away from the extension part of the seat body, so as to avoid the extension part of the seat body, and the gap between the plurality of SMA wires and the extension part of the seat body is always maintained, thereby ensuring the reliability of the SMA motor. In addition, the space around the first edge line is the reserved clamping jaw movement space, the space is large, the movable clamping jaw is moved to the space, and the space utilization rate of the SMA motor is improved.

[0023] In some possible embodiments, the first movable clamping jaw and the second movable clamping jaw are independent structural members, so as to supply power to the first SMA wire and the second SMA wire respectively. Alternatively, the first movable clamping jaw and the second movable clamping jaw can be connected to form a whole, so as to simplify the structure of the SMA motor and facilitate assembly.

[0024] In some possible embodiments, the height of the first connecting column and the height of the second connecting column of the carrier are greater than the height of the first main body, so that the height (that is, the clamping jaw height) between the first movable clamping jaw and the second movable clamping jaw can meet the design requirement, and the gap between the first main body and the second main body of the seat body is formed, so that the carrier can move relative to the seat body in the third direction.

[0025] In some possible implementation, the projections of the two SMA wires on a reference plane form a crossing point, the reference plane is parallel to the optical axis of the lens and parallel to the two SMA wires, and the projection of the optical axis of the lens on the reference plane covers the crossing point. At this time, the crossing position of the two SMA wires is centrally arranged, that is, aligned with the optical axis of the lens in the first direction or the second direction.

[0026] In the embodiment, the first movable clamping jaw, the first SMA wire and the first fixed clamping jaw are symmetrical to the XZ plane or the YZ plane, and the second movable clamping jaw, the second SMA wire and the first fixed clamping jaw are symmetrical to the XZ plane or the YZ plane, so that the driving action of the driving assembly of the SMA motor is more easily realized, and the driving precision is high. In other embodiments, the crossing position of the two SMA wires can also be arranged not centrally, for example, close to the first edge or the second edge relative to the optical axis of the lens.

[0027] In some possible implementation, the carrier includes a first body, a first connecting column and a second connecting column. The first body includes four first corners, the first connecting column and the second connecting column are respectively fixed to two diagonally opposite first corners, the movable clamping jaws of the four driving units are fixed to the first connecting column and the second connecting column, and the other two diagonally opposite first corners are respectively provided with a first gap and a second gap.

[0028] The seat body includes a second body, a third connecting column and a fourth connecting column, the second body includes four second corners, the third connecting column and the fourth connecting column are respectively fixed to two diagonally opposite second corners, the fixed clamping jaws of the four driving units are fixed to the third connecting column and the fourth connecting column, and the other two diagonally opposite second corners are respectively provided with a third gap and a fourth gap.

[0029] The second body is located between the first body and the bottom plate, the first connecting column is partially located in the third gap, the second connecting column is partially located in the fourth gap, the third connecting column is partially located in the first gap, and the fourth connecting column is partially located in the second gap.

[0030] In the present application, in order to ensure the stability of the movement of the carrier relative to the seat body, the shape of the wall surface of the connecting column is matched with the shape of the wall surface of the gap. There is a gap between the wall surface of the connecting column and the wall surface of the gap, which enables the carrier to move on the XY plane or tilt in any direction around the seat body to realize optical anti-shake. When the carrier moves a certain distance on the XY plane or tilts a certain angle in any direction around the seat body, the wall surface of the connecting column and the wall surface of the gap are in contact, which blocks the continuous movement of the carrier, so as to limit the maximum distance of the movement of the carrier and the maximum angle of the tilt.

[0031] The structure and assembly structure of the carrier, the seat body and the four groups of driving units can be symmetrical relative to the first plane and symmetrical relative to the second plane, so as to improve the stability and reliability of the SMA motor driving. The arrangement direction of the first connecting column and the second connecting column and the axial direction of the carrier can jointly define the first plane, and the arrangement direction of the third connecting column and the fourth connecting column and the axial direction of the carrier can jointly define the second plane. The second plane can be perpendicular to the first plane.

[0032] In some possible implementation manners, the second main body further includes four second edge portions, the four second edge portions are arranged alternately with the four second corner portions, and the seat body further includes at least one extension portion, the at least one extension portion is fixed to the outer side of the four second edge portions. In the direction parallel to the optical axis of the lens, the size of the extension portion is greater than the size of the second main body, and the at least one extension portion is provided with an exposed gold finger. In the implementation manner, because the height of the extension portion is relatively large, there is relatively sufficient space to arrange the gold finger and other electrical connection structures.

[0033] In some possible implementation manners, the substrate includes a circuit board and a reinforcing plate, the first portion is fixed to the circuit board, the reinforcing plate is laminated to the side of the circuit board away from the first portion, and the avoiding space penetrates through the circuit board and the reinforcing plate. The reinforcing plate is used to increase the structural strength of the circuit board. Because the avoiding space penetrates through the circuit board and the reinforcing plate, the depth of the second portion of the bottom plate extending into the substrate can be relatively large, which is beneficial to further reduce the module shoulder height of the camera module.

[0034] In some possible implementation manners, the substrate includes a circuit board and a reinforcing plate, the first portion is fixed to the circuit board, the reinforcing plate is laminated to the side of the circuit board away from the first portion, and the avoiding space penetrates through the circuit board and exposes part of the reinforcing plate. The reinforcing plate is used to increase the structural strength of the circuit board.

[0035] In some possible implementation manners, the first portion is bonded to the circuit board, and the second portion is bonded to the reinforcing plate. Because the first portion of the bottom plate of the SMA is fixedly connected to the substrate, and the second portion is also fixedly connected to the substrate, the connection area of the bottom plate and the substrate is relatively large, so that the risk of delamination between the bottom plate and the substrate can be reduced, and the structural reliability of the camera module is improved.

[0036] In some possible implementation manners, the camera module further includes a filter and a filter support, the filter support is fixed to the side of the substrate close to the lens and surrounds the image sensor, and the filter is located between the lens and the image sensor and is fixed to the filter support. The filter can be used to filter stray light of the scene light passing through the lens, so as to ensure that the image captured by the camera module has relatively high clarity.

[0037] In some possible implementation, the bottom plate further comprises a third portion. The third portion is located at the inner side of the first portion, the first through hole is formed in the third portion, the distance between the third portion and the top plate is less than the distance between the first portion and the top plate, and the seat body is fixed to the third portion. The filter and the filter holder are located between the first through hole and the substrate and / or between the third portion and the substrate.

[0038] In the embodiment, the filter and the filter holder of the photosensitive assembly can be arranged in the accommodation space between the bottom plate and the substrate, so that the assembly structure of the SMA motor and the photosensitive assembly is more compact, thereby reducing the height of the camera module in the third direction.

[0039] In some embodiments, the second main body of the seat body is fixed to the third portion of the bottom plate, the extension part of the seat body can be located between the third portion of the bottom plate and the first side plate, and located between the first portion of the bottom plate and the top plate, that is, located in the space above the first portion of the bottom plate. At this time, the assembly structure of the seat body and the bottom plate can make full use of the space of the bottom plate, and reduce the height of the SMA motor in the third direction.

[0040] In some possible implementation, the filter holder comprises an insulating body and a magnetic conductive member, the magnetic conductive member is embedded in the insulating body, the insulating body is fixed to the substrate, and the magnetic conductive member is electrically connected to the substrate. The filter holder can be formed by insert-molding process. In the embodiment, the filter holder has high structural strength, which is conducive to reducing the risk of filter cracking.

[0041] In the camera module, since the plurality of SMA wires of the SMA motor are controlled by the PWM (Pulse-width modulation) voltage, the PWM signal is easy to be coupled with the signal of the image sensor, which causes the image sensor to be interfered, and there is a risk of image distortion (such as appearing stripes), freezing and the like. In the embodiment, the filter holder is located on the side of the image sensor close to the SMA motor, the magnetic conductive member of the filter holder is grounded, and the magnetic conductive member has magnetic conductive capability, so as to shield or reduce the interference of the PWM signal of the SMA motor on the image sensor, thereby improving the imaging quality of the camera module.

[0042] In some possible implementation, the insulating body is in a frame shape, the magnetic conductive member is in a frame shape, the magnetic conductive member protrudes relative to the inner circumferential side surface of the insulating body, and the filter is fixed to the magnetic conductive member. At this time, the magnetic conductive member is used to provide a support step for supporting the filter, and compared with the plastic step used in the traditional filter holder, the thickness of the support step in the embodiment can be reduced from about 0.18 mm to about 0.1 mm, which is conducive to reducing the back focus of the lens, thereby reducing the total height of the camera module.

[0043] In some possible implementations, the camera module may also include a variable aperture with an aperture hole located on the light-receiving side of the lens, the size of which is variable. The variable aperture is used to adjust the amount of light entering the camera, enabling the camera module to maintain constant image quality under various brightness conditions.

[0044] The variable aperture is fixed to the lens, allowing it to move synchronously with the lens and maintain a constant relative position between the aperture opening and the lens, thus ensuring the image quality of the camera module. Alternatively, the variable aperture can be fixed to other components of the camera module, such as the carrier of the SMA motor.

[0045] Secondly, this application also provides an electronic device. The electronic device includes an image processor and a camera module as described above, the image processor being communicatively connected to the camera module. The camera module, while ensuring image quality, has a relatively small module height, resulting in a more comfortable shooting experience for the electronic device and facilitating a thinner design. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0047] Figure 1 This is a schematic diagram of the structure of the electronic device provided in some embodiments of this application;

[0048] Figure 2 yes Figure 1 A partially exploded structural diagram of the electronic device shown.

[0049] Figure 3 yes Figure 2 The diagram shows a structural schematic of a camera module in some embodiments.

[0050] Figure 4 yes Figure 3 A partial exploded view of the camera module shown.

[0051] Figure 5 yes Figure 4 The diagram shows the structure of the SMA motor in some embodiments.

[0052] Figure 6 yes Figure 5 The diagram shows the structure of the seat at another angle;

[0053] Figure 7 yes Figure 4 The diagram shows a partial structural schematic of the SMA motor.

[0054] Figure 8 is a structural schematic view of the lower cover shown in FIG. 1 from another angle; Figure 5

[0055] Figure 9 is a structural schematic view of the lower cover shown in FIG. 1 from another angle; Figure 8

[0056] Figure 10 is a sectional structural schematic view of the SMA motor shown in FIG. 1 along A-A; Figure 4

[0057] Figure 11 is a sectional structural schematic view of the SMA motor shown in FIG. 1 along B-B; Figure 4

[0058] Figure 12 is an internal structural schematic view of the SMA motor shown in FIG. 1 in another embodiment; Figure 4

[0059] Figure 13 is a structural schematic view of the SMA drive assembly of the SMA motor shown in FIG. 1; Figure 12

[0060] Figure 14 is a structural schematic view of the SMA drive assembly shown in FIG. 1 from another angle; Figure 13

[0061] Figure 15 is a structural schematic view of the four groups of drive units of the SMA drive assembly shown in FIG. 1; Figure 13

[0062] Figure 16 is an exploded structural schematic view of the light-sensing assembly shown in FIG. 1; Figure 4

[0063] Figure 17 is a sectional structural schematic view of the light-sensing assembly shown in FIG. 1 along C-C; Figure 4

[0064] Figure 18 is a structural schematic view of the light-sensing assembly shown in FIG. 1 from another angle; Figure 4

[0065] Figure 19 is a structural schematic view of part of the camera module shown in FIG. 1 from another angle; Figure 3

[0066] Figure 20 is a structural schematic view of the camera module shown in FIG. 1 from another angle; Figure 3

[0067] Figure 21 is a structural schematic view of the camera module shown in FIG. 1 from another angle; Figure 3 ​​​​​​​​​​​​​A cross-sectional structure schematic view of the camera module shown along D-D is shown in the figure.

[0068] Figure 22 A Figure 21 A structure schematic view of the structure shown from another angle is shown in the figure.

[0069] Figure 23 A Figure 3 A cross-sectional structure schematic view of the camera module shown along E-E is shown in the figure.

[0070] Figure 24 A Figure 2 A structure schematic view of the camera module in some other embodiments is shown in the figure.

[0071] Figure 25 A Figure 24 A partially exploded structure schematic view of the camera module is shown in the figure.

[0072] Figure 26 A Figure 25 An exploded structure schematic view of the photosensitive assembly is shown in the figure.

[0073] Figure 27 A Figure 25 A cross-sectional structure schematic view of the photosensitive assembly shown along F-F is shown in the figure.

[0074] Figure 28 A Figure 24 A cross-sectional structure schematic view of the camera module shown along G-G is shown in the figure.

[0075] Figure 29 A Figure 28 A structure schematic view of the structure shown from another angle is shown in the figure. DETAILED DESCRIPTION

[0076] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0077] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through an intermediate medium. The positional phrases mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side", "left", "right", etc., are only the directions of the accompanying drawings, therefore, the positional phrases used are for better, clearer illustration and understanding of the embodiments of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0078] The term "plurality" means at least two. The term "and / or", only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the associated objects before and after are an "or" relationship.

[0079] The terms "first", "second", "third", "fourth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features.

[0080] In addition, in the embodiments of the present application, the relative position relationship mentioned, such as parallel, vertical, aligned, etc. These limits are for the current process level, not an absolute strict limit, and allow a small amount of deviation, approximately parallel, approximately vertical, approximately aligned, etc. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B is between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B is between 80 degrees and 100 degrees.

[0081] The present application provides an electronic device, which is a kind of electronic device with shooting function. Wherein, the electronic device can be a portable electronic device or other suitable electronic device. For example, the electronic device can be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, etc. The wearable device can be an augmented reality (AR) glasses, an AR helmet, a virtual reality (VR) glasses or a VR helmet, etc.

[0082] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of the electronic device 100 in some embodiments provided by the embodiments of the present application, Figure 2 is Figure 1 a partially exploded structural schematic diagram of the electronic device 100 shown in FIG. 1. In the present embodiment, the electronic device 100 is taken as an example to be described as a mobile phone. It can be understood that, Figure 1 and Figure 2The actual shape, actual size, actual position, and actual configuration of some components included in the electronic device 100 are not limited to what is shown in the figures Figure 1 The electronic device 100 can also include more or fewer components than those shown in the figures. Figure 2 The electronic device 100 can also include more or fewer components than those shown in the figures. Figure 1 The electronic device 100 can also include more or fewer components than those shown in the figures. Figure 2 The electronic device 100 can also include more or fewer components than those shown in the figures.

[0083] In some embodiments, the electronic device 100 can include a screen 10, a back cover 20, a camera module 30, and a camera decoration cover 40. The screen 10 is used to display images, videos, and the like. The screen 10 includes a light-transmitting cover plate 101 and a display screen 102. The light-transmitting cover plate 101 and the display screen 102 are arranged in layers and fixedly connected. The light-transmitting cover plate 101 is mainly used to protect and prevent dust from the display screen 102. The material of the light-transmitting cover plate 101 includes but is not limited to glass. The display screen 102 can be a flexible display screen or a rigid display screen. For example, the display screen 102 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light emitting diode (QLED) display screen, a liquid crystal display (LCD), and the like.

[0084] The back cover 20 is configured to protect the internal electronic components of the electronic device 100. The back cover 20 includes a back cover 201 and a frame 202. The back cover 201 is located on the side of the display 102 away from the light-transmitting cover plate 101 and is stacked with the light-transmitting cover plate 101 and the display 102. The frame 202 is fixed to the back cover 201. In an example, the frame 202 can be fixed to the back cover 201 by adhesive. The frame 202 can also be an integral structure with the back cover 201, i.e., the frame 202 and the back cover 201 are an integral structure. The frame 202 is located between the back cover 201 and the light-transmitting cover plate 101. The light-transmitting cover plate 101 can be fixed to the frame 202 by adhesive. The light-transmitting cover plate 101, the back cover 201, and the frame 202 form an internal accommodating space of the electronic device 100. The internal accommodating space accommodates the display 102.

[0085] The camera module 30 is configured to capture photos and / or videos. In an example, the camera module 30 can be located in the internal accommodating space of the electronic device 100. The camera module 30 can be used as a rear camera module or a front camera module.

[0086] The camera module 30 is configured to capture photos and / or videos. In an example, the camera module 30 can be located in the internal accommodating space of the electronic device 100. The camera module 30 can be used as a rear camera module or a front camera module.

[0087] In other embodiments, the light entrance surface of the camera module 30 faces the light-transmitting cover plate 101. The display 102 is provided with a light path avoiding hole. The light path avoiding hole allows the scene light to pass through the light-transmitting cover plate 101 and then enter the light entrance surface of the camera module 30. In this way, the camera module 30 is used as a front camera module of the electronic device 100.

[0088] In some embodiments, as shown in FIG. 1, the camera module 30 is located on the side of the back cover 201 away from the light-transmitting cover plate 101. In other embodiments, the camera module 30 can also be located on the side of the back cover 201 close to the light-transmitting cover plate 101. Figure 2As shown, the electronic device 100 further includes a circuit board 50 and an image processor 60, the circuit board 50 and the image processor 60 are located in the internal accommodation space of the electronic device 100, the image processor 60 is fixed to the circuit board 50 and electrically connected to the circuit board 50. The image processor 60 is in communication connection with the camera module 30. The image processor 60 is configured to acquire image data from the camera module 30 and process the image data. It should be understood that the communication connection between the camera module 30 and the image processor 60 can include data transmission through electrical connection such as wiring, or can be achieved through coupling or other data transmission modes.

[0089] In some embodiments, the electronic device 100 can further include an analog-to-digital converter (also referred to as an A / D converter, not shown in the figure). The analog-to-digital converter is connected between the camera module 30 and the image processor 60. The analog-to-digital converter is configured to convert the signal generated by the camera module 30 into a digital image signal and transmit it to the image processor 60, and then the image processor 60 processes the digital image signal and finally displays the image or video on the screen 10.

[0090] In some embodiments, the electronic device 100 can further include a memory (not shown in the figure), the memory is in communication connection with the image processor 60, and the image processor 60 processes the image digital signal and then transmits the image to the memory, so that when the image needs to be viewed later, the image can be found in the memory at any time and displayed on the screen 10. In some embodiments, the image processor 60 will also compress the processed image digital signal and store it in the memory to save memory space.

[0091] In other embodiments, the electronic device 100 can also not include the screen 10 and / or the camera cover 40.

[0092] Please refer to Figure 3 and Figure 4 , Figure 3 is Figure 2 the structural schematic diagram of the camera module 30 in some embodiments, Figure 4 is Figure 3 a partially exploded structural schematic diagram of the camera module 30. It should be understood that Figure 3 and Figure 4 only schematically show some components included in the camera module 30, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 3 and Figure 4 The camera module 30 can also include more or fewer components than Figure 3 and Figure 4 .

[0093] For convenience of description hereinafter, the length direction of the camera module 30 is defined as the first direction X, the width direction of the camera module 30 is defined as the second direction Y, the second direction Y is perpendicular to the first direction X, the height direction of the camera module 30 is defined as the third direction Z, the third direction Z is perpendicular to the first direction X and the second direction Y. The XY plane is parallel to the first direction X and the second direction Y, the XZ plane is parallel to the first direction X and the third direction Z, and the YZ plane is parallel to the second direction Y and the third direction Z.

[0094] In some embodiments, the camera module 30 includes the lens 1, the SMA motor 2, the photosensitive assembly 3, and the first adhesive layer 4.

[0095] The lens 1 is configured to image a subject. The optical axis 11 of the lens 1 is parallel to the third direction Z of the camera module 30. The lens 1 can include a lens barrel 12 and an optical lens group 13. The optical lens group 13 is fixed to the inner side of the lens barrel 12, and the lens barrel 12 is configured to fix and protect the optical lens group 13. The optical lens group 13 includes at least one optical lens. When the optical lens group 13 includes a plurality of optical lenses, the plurality of optical lenses are arranged in a stacked manner along the direction of the optical axis 11 of the lens 1. By designing the structure and parameters of the optical lens group 13, a lens with different characteristics such as wide-angle, standard, and telephoto can be obtained.

[0096] The lens 1 is fixed to the SMA motor 2. The SMA motor 2 is configured to drive the lens 1 to move along a direction to realize automatic focusing (AF) and / or optical image stabilization (OIS). For example, the SMA motor 2 can be configured to drive the lens 1 to move along the third direction Z to realize automatic focusing. The SMA motor 2 can also be configured to drive the lens 1 to move in the XY plane or tilt in any direction around to realize optical image stabilization. The SMA motor 2 can also be configured to realize both automatic focusing and optical image stabilization, which is not limited here. The SMA motor 2 can be fixed to the photosensitive assembly 3 through the first adhesive layer 4.

[0097] In some embodiments, the camera module 30 can further include a variable aperture (VA) (not shown in the figures). The variable aperture has an aperture hole located at the light-in side of the lens 1, and the size of the aperture hole is variable. The variable aperture is used to adjust the amount of light entering the lens 1, so that the camera module 30 can maintain constant shooting quality under various brightness conditions. In a high brightness environment, the size of the aperture hole can be reduced so that a relatively small amount of light enters the lens 1; in a low brightness environment, the size of the aperture hole can be expanded so that a relatively large amount of light enters the lens 1; thereby achieving the adjustment of the amount of light entering the lens 1, and ensuring the shooting quality of the camera module 30. In some embodiments, the variable aperture is fixed to the lens 1, so as to be fixed relative to the lens 1 and thus be able to move synchronously with the lens 1, so that the relative position of the aperture hole and the lens 1 remains unchanged, thereby ensuring the shooting quality of the camera module 30. In other embodiments, the variable aperture can also be fixed to other components of the camera module 30, such as the carrier of the SMA motor 2.

[0098] Please refer to Figure 5 , Figure 5 is Figure 4 the structural schematic diagram of the SMA motor 2 in some embodiments. Among them, Figure 5 schematically shows some components included in the SMA motor 2, the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 5 , and the SMA motor 2 can also include more or fewer components than Figure 5 .

[0099] In some embodiments, the SMA motor 2 includes a carrier 21, a seat body 22, an SMA driving assembly 23 and an outer shell 24.

[0100] For example, the carrier 21 has a lens mounting hole 211, which is open at both ends. The lens 1 is mounted in the lens mounting hole 211 of the carrier 21 to be fixed to the carrier 21. In some embodiments, the lens 1 can be mounted in the lens mounting hole 211 by a detachable connection mode such as clamping or threaded connection, so as to facilitate the replacement of the lens 1. When the lens 1 is mounted in the lens mounting hole 211, the extension direction of the optical axis 11 of the lens 1 is consistent with the axial direction of the lens mounting hole 211. In other embodiments, the lens 1 can also be mounted in the lens mounting hole 211 by a non-detachable mode such as bonding, so as to improve the connection stability and firmness. The forming material of the carrier 21 can include but is not limited to metal and plastic. In some embodiments, the forming material of the carrier 21 is plastic.

[0101] The carrier 21 can have an axial direction and a circumferential direction. The axial direction of the carrier 21 is parallel to the optical axis 11 of the lens 1, i.e. parallel to the third direction Z. The circumferential direction of the carrier 21 is arranged around the axial direction of the carrier 21.

[0102] For example, the carrier 21 can include a first body 212, a first connecting column 213, and a second connecting column 214. The first body 212 can have a shape similar to a plate with an inner circle and an outer square. The inner side of the first body 212 forms the lens mounting hole 211. For example, the first body 212 can include four first corners and four first edges. The four first edges are arranged alternately with the four first corners along the circumferential direction of the carrier 21 and surround the circumferential side of the lens mounting hole 211. Two of the first edges are arranged oppositely, and the other two of the first edges are also arranged oppositely. Two of the first corners are arranged diagonally, and the other two of the first corners are also arranged diagonally. The first connecting column 213 and the second connecting column 214 are respectively fixed to two of the first corners arranged diagonally, and the other two of the first corners arranged diagonally are respectively provided with a first notch 215 and a second notch 216.

[0103] For example, the first connecting column 213 can include a first side surface 2131 and a fourth side surface 2132 arranged adjacently. The intersection of the first side surface 2131 and the fourth side surface 2132 forms a first ridge line 2133. In some embodiments, the first side surface 2131 can be coplanar with one of the outer side surfaces of the first body 212, and the fourth side surface 2132 can be coplanar with the other outer side surface of the first body 212. For example, the second connecting column 214 can include a second side surface 2141 and a third side surface 2142. The intersection of the second side surface 2141 and the third side surface 2142 forms a second ridge line 2143. In some embodiments, the second side surface 2141 can be coplanar with the other outer side surface of the first body 212, and the third side surface 2142 can be coplanar with the other outer side surface of the first body 212.

[0104] For example, in the axial direction of the carrier 21, the height of the first connecting column 213 and the height of the second connecting column 214 can be greater than the height of the first body 212. The two ends of the first connecting column 213 and the second connecting column 214 can respectively protrude relative to the two surfaces of the first body 212, or one end of the first connecting column 213 and the second connecting column 214 protrudes relative to one of the surfaces of the first body 212.

[0105] For example, the first notch 215 and the second notch 216 can be spaces recessed from the outer side surface of the first body 212 to the interior of the first body 212. The first notch 215 and the second notch 216 pass through the first body 212 along the axial direction of the carrier 21. The wall surface of the first notch 215 and the second notch 216 can be stepped or have other shapes.

[0106] Please refer toFigure 5 and Figure 6 , Figure 6 is Figure 5 is a structural schematic view of the seat body 22 at another angle.

[0107] In some embodiments, the seat body 22 can include a second main body 221, a third connecting column 222, a fourth connecting column 223, and at least one extension 224. The second main body 221 can have a shape similar to a plate body with an inner circle and an outer square. An inner side of the second main body 221 forms a movable hole 225 that penetrates the second main body 221 along an axial direction of the seat body 22. The second main body 221 can include four second corners and four second edges that are alternately arranged along a circumferential direction of the seat body 22 and surround a circumferential side of the movable hole 225. Two of the second edges are oppositely arranged, and the other two of the second edges are also oppositely arranged. Two of the second corners are diagonally arranged, and the other two of the second corners are also diagonally arranged. The third connecting column 222 and the fourth connecting column 223 are respectively fixed to two of the second corners that are diagonally arranged, and the other two of the second corners are respectively provided with a third notch 226 and a fourth notch 227.

[0108] In the axial direction of the seat body 22, a height of the third connecting column 222 and the fourth connecting column 223 is greater than a height of the second main body 221. The third connecting column 222 and the fourth connecting column 223 can protrude to one side of the second main body 221 relative to the second main body 221.

[0109] The third connecting column 222 can include a first fixing surface 2221 and a second fixing surface 2222 that are adjacently arranged, and an intersection of the first fixing surface 2221 and the second fixing surface 2222 forms a third edge line 2223. In some embodiments, the first fixing surface 2221 can be coplanar with one of the outer side surfaces of the second main body 221, and the second fixing surface 2222 can be coplanar with the other outer side surface of the second main body 221. The fourth connecting column 223 can include a third fixing surface 2231 and a fourth fixing surface 2232, and an intersection of the third fixing surface 2231 and the fourth fixing surface 2232 forms a fourth edge line 2233. In some embodiments, the third fixing surface 2231 can be coplanar with the other outer side surface of the second main body 221, and the fourth fixing surface 2232 can be coplanar with the other outer side surface of the second main body 221.

[0110] The third notch 226 and the fourth notch 227 can be spaces recessed from the outer side surface of the second main body 221 to the inside of the second main body 221, and the third notch 226 and the fourth notch 227 penetrate the second main body 221 along the axial direction of the seat body 22. A wall surface of the third notch 226 and the fourth notch 227 can have a stepped shape or other shapes.

[0111] The number of the extension parts 224 can be one or more. In the following embodiments, the number of the extension parts 224 is four. The four extension parts 224 are respectively fixed to the outer side of the four second edge parts. In the axial direction of the seat body 22, the size of the extension part 224 is larger than the size of the second main body 221. At least one of the extension parts 224 is provided with an exposed gold finger (not shown in the figure). For example, the two oppositely arranged extension parts 224 are both provided with a gold finger. In other embodiments, the number of the extension parts 224 can be two, and the two extension parts 224 can be oppositely arranged. Because the height of the extension part 224 is large, there is sufficient space to arrange the gold finger and other electrical connection structures.

[0112] In some embodiments, the seat body 22 can include an insulating part and a conductive part. The conductive part can be embedded in the insulating part, and the conductive part can be used to provide an electrical connection structure. The conductive part can also form the gold finger mentioned above, and the electrical connection structure can be connected to the gold finger. The insulating part can be made of an insulating material such as plastic. The conductive part can be made of a metal material such as steel, copper, etc.

[0113] Please refer to Figure 5 and Figure 7 , Figure 7 is Figure 4 a partial structural schematic diagram of the SMA motor 2.

[0114] In some embodiments, the carrier 21 is assembled with the seat body 22. The axial direction of the seat body 22 coincides with the axial direction of the carrier 21, that is, both are parallel to the optical axis 11 of the lens 1 and parallel to the third direction Z. The first main body 212 of the carrier 21 and the second main body 221 of the seat body 22 are arranged in a stacked manner along the third direction Z. The movable hole 225 of the second main body 221 is directly opposite and communicates with the lens mounting hole 211 of the first main body 212. The four first corner parts of the first main body 212 are arranged in one-to-one correspondence with the four second corner parts of the second main body 221. The first connecting column 213 of the carrier 21 is partially located in the third notch 226 of the seat body 22. The second connecting column 214 of the carrier 21 is partially located in the fourth notch 227 of the seat body 22. The third connecting column 222 of the seat body 22 is partially located in the first notch 215 of the carrier 21. The fourth connecting column 223 of the seat body 22 is partially located in the second notch 216 of the carrier 21.

[0115] For example, the SMA driving assembly 23 connects the carrier 21 and the seat 22, and is configured to drive the carrier 21 to move relative to the seat 22 to realize auto-focusing and / or optical image stabilization. Specifically, the SMA driving assembly 23 is connected between the carrier 21 and the seat 22. The SMA driving assembly 23 supports the carrier 21 on the seat 22, and is configured to drive the carrier 21 and the lens 1 to move together along the third direction Z to realize auto-focusing. Alternatively, the SMA driving assembly 23 is configured to drive the carrier 21 and the lens 1 to move together in the XY plane or tilt in any direction around to realize optical image stabilization.

[0116] For example, the SMA driving assembly 23 includes four groups of driving units 23a, which are arranged uniformly around the periphery of the carrier 21. Each group of driving units 23a includes a pair of movable clamping jaws (231, 232), a pair of fixed clamping jaws (233, 234), and two SMA wires (235, 236). The pair of movable clamping jaws (231, 232) is fixed to the carrier 21, the pair of fixed clamping jaws (233, 234) is fixed to the seat 22, the pair of movable clamping jaws (231, 232) and the pair of fixed clamping jaws (233, 234) are arranged at intervals along the periphery of the carrier 21, and the two SMA wires (235, 236) are connected between the pair of movable clamping jaws (231, 232) and the pair of fixed clamping jaws (233, 234) in a cross manner. Among them, the pair of movable clamping jaws (231, 232) includes a first movable clamping jaw 231 and a second movable clamping jaw 232, the pair of fixed clamping jaws (233, 234) includes a first fixed clamping jaw 233 and a second fixed clamping jaw 234, the two SMA wires (235, 236) includes a first SMA wire 235 and a second SMA wire 236, the first SMA wire 235 is connected between the first movable clamping jaw 231 and the first fixed clamping jaw 233, the second SMA wire 236 is connected between the second movable clamping jaw 232 and the second fixed clamping jaw 234, and the first SMA wire 235 and the second SMA wire 236 cross each other.

[0117] The pair of dynamic clamping jaws (231, 232) of two adjacent groups of driving units 23a are arranged adjacent along the circumferential direction of the carrier 21, or the pair of fixed clamping jaws (233, 234) of two adjacent groups of driving units 23a are arranged adjacent. For example, the dynamic clamping jaws (231, 232) of four groups of driving units 23a are fixed to the first connecting column 213 and the second connecting column 214. The dynamic clamping jaws (231, 232) of two groups of driving units 23a are fixed to the first connecting column 213, and the dynamic clamping jaws (231, 232) of the other two groups of driving units 23a are fixed to the second connecting column 214. Specifically, the pair of dynamic clamping jaws (231, 232) of one group of driving units 23a are fixed to the first side surface 2131 of the first connecting column 213, the pair of dynamic clamping jaws (231, 232) of another group of driving units 23a are fixed to the fourth side surface 2132 of the first connecting column 213, the pair of dynamic clamping jaws (231, 232) of another group of driving units 23a are fixed to the second side surface 2141 of the second connecting column 214, and the pair of dynamic clamping jaws (231, 232) of another group of driving units 23a are fixed to the third side surface 2142 of the second connecting column 214.

[0118] The fixed clamping jaws (233, 234) of four groups of driving units 23a are fixed to the third connecting column 222 and the fourth connecting column 223. The fixed clamping jaws (233, 234) of two groups of driving units 23a are fixed to the third connecting column 222, and the fixed clamping jaws (233, 234) of the other two groups of driving units 23a are fixed to the fourth connecting column 223. Specifically, the pair of fixed clamping jaws (233, 234) of one group of driving units 23a are fixed to the first fixed surface 2221 of the third connecting column 222, the pair of fixed clamping jaws (233, 234) of another group of driving units 23a are fixed to the second fixed surface 2222 of the third connecting column 222, the pair of fixed clamping jaws (233, 234) of another group of driving units 23a are fixed to the third fixed surface 2231 of the fourth connecting column 223, and the pair of fixed clamping jaws (233, 234) of another group of driving units 23a are fixed to the fourth fixed surface 2232 of the fourth connecting column 223.

[0119] The SMA wires (235, 236) contract when heated by electricity. The SMA wires (235, 236) are made of shape memory alloy (SMA) material, such as nickel-titanium alloy material. Shape memory alloy is a general term for a class of metals that have shape memory effect. Generally, the first thing that happens to a metal material after it is subjected to an external force is elastic deformation. At this time, if the external force is removed, the metal will return to its original shape. If the external force continues to increase, when it reaches the yield point of the metal itself, plastic deformation will occur. After the external force is removed, permanent deformation is left, and even heating will not cause the shape to recover. Shape memory alloy is an alloy material that can completely eliminate the deformation that occurs at a lower temperature, restoring its original shape before deformation when heated to a certain critical temperature. The basic principle of shape memory alloy material is to heat the material to a certain critical temperature for shape memory training, and cause a certain deformation. After cooling to generate martensite phase, when heated to above the critical temperature again, the low-temperature martensite phase reverses to high-temperature austenite phase (i.e. reverse transformation), thereby restoring the state remembered before deformation.

[0120] In this embodiment, when the SMA wires (235, 236) are electrified, the heat generated by electrification causes the temperature of the SMA wires (235, 236) to rise, realizing the reverse phase change from low-temperature martensite to high-temperature austenite, restoring the memory before deformation, so that the SMA wires (235, 236) contract. The length change caused by the contraction of the SMA wires (235, 236) is essentially due to the crystal phase structure conversion of the material, that is, the conversion between martensite and austenite. The attractive force between the micro-particles due to the change in crystal structure (i.e. the gap between atoms) causes the SMA wires (235, 236) to contract with a much larger pulling force than the electromagnetic force between general magnet coils. Therefore, the contraction of the SMA wires (235, 236) can drive a heavier load, that is, it can achieve large load, so the SMA motor 2 can achieve larger driving force with smaller size.

[0121] In the embodiment, since the SMA wires (235, 236) shrink when heated by electricity, by controlling the electrical signals of the eight SMA wires (235, 236), the resultant force of the eight SMA wires (235, 236) on the carrier 21 can be directed to the desired direction, thereby driving the carrier 21 and the lens 1 to move. For example, the eight SMA wires (235, 236) can generate a resultant force in the third direction Z to drive the carrier 21 and the lens 1 to move in the third direction Z to achieve focusing, or the eight SMA wires (235, 236) can generate a resultant force in the XY plane to drive the carrier 21 and the lens 1 to move in the XY plane to achieve optical image stabilization. In the embodiment, the SMA motor 2 has simple structure, large driving force, and small volume, and can achieve both auto-focusing and optical image stabilization, and can also reduce the volume of the camera module 30.

[0122] For example, to ensure the smoothness of the movement of the carrier 21 relative to the seat body 22, the shape of the wall surface of the connecting column is matched with the shape of the wall surface of the notch, for example, the shape of the wall surface of the first connecting column 213 towards the third notch 226 is matched with the shape of the wall surface of the third notch 226, for example, also a stepped surface; the shape of the wall surface of the second connecting column 214 towards the fourth notch 227 is matched with the shape of the wall surface of the fourth notch 227, for example, also a stepped surface; the shape of the wall surface of the third connecting column 222 towards the first notch 215 is matched with the shape of the wall surface of the first notch 215, for example, also a stepped surface; the shape of the wall surface of the fourth connecting column 223 towards the second notch 216 is matched with the shape of the wall surface of the second notch 216, for example, also a stepped surface. There is a gap between the wall surface of the connecting column and the wall surface of the notch, which allows the carrier 21 to move in the XY plane relative to the seat body 22 or tilt in any direction around the seat body 22 to achieve optical image stabilization. When the carrier 21 moves a certain distance in the XY plane relative to the seat body 22 or tilts a certain angle in any direction around the seat body 22, the wall surface of the connecting column contacts the wall surface of the notch to block the movement of the carrier 21, thereby limiting the maximum distance of the movement of the carrier 21 and the maximum angle of the tilt of the carrier 21.

[0123] Exemplarily, the forming material of the movable clamping jaws (231, 232) can be a conductive material or an insulating material. In some embodiments, the forming material of the movable clamping jaws (231, 232) is a conductive material, such as metal. In this way, the movable clamping jaws (231, 232) can serve as a wiring terminal of the first electrode of the SMA wire (235, 236) to facilitate the wiring of the SMA wire (235, 236). The first electrode is one of the positive electrode and the negative electrode. The forming material of the fixed clamping jaws (233, 234) can be a conductive material or an insulating material. In some embodiments, the forming material of the fixed clamping jaws (233, 234) is a conductive material, such as metal. In this way, the fixed clamping jaws (233, 234) can serve as a wiring terminal of the second electrode of the SMA wire (235, 236) to facilitate the wiring of the SMA wire (235, 236). The second electrode is the other of the positive electrode and the negative electrode.

[0124] In the above embodiment, the first movable clamping jaw 231 and the second movable clamping jaw 232 are independent structural members to facilitate the supply of power to the first SMA wire 235 and the second SMA wire 236, respectively. In other embodiments, the first movable clamping jaw 231 and the second movable clamping jaw 232 can be connected to form an integral structure to facilitate the simplification of the structural components of the SMA motor 2 and facilitate assembly.

[0125] In addition, the height of the first connecting column 213 and the height of the second connecting column 214 of the carrier 21 are greater than the height of the first main body 212, at this time, it can not only ensure that the height (i.e., the height of the clamping jaw) between the first movable clamping jaw 231 and the second movable clamping jaw 232 meets the design requirements, but also enables the first main body 212 and the second main body 221 of the seat body 22 to form a gap, so that the carrier 21 can move relative to the seat body 22 in the third direction Z. In other embodiments, the height of the first connecting column 213 and the height of the second connecting column 214 can be equal to or less than the height of the first main body 212.

[0126] In addition, in the foregoing embodiment, the structure and assembly structure of the carrier 21, the seat body 22, and the four sets of driving units 23a themselves can be symmetrical relative to the first plane and symmetrical relative to the second plane to improve the stability and reliability of the SMA motor 2. The arrangement direction I of the first connecting column 213 and the second connecting column 214 and the axial direction of the carrier 21 can jointly define the first plane, and the arrangement direction II of the third connecting column 222 and the fourth connecting column 223 and the axial direction of the carrier 21 can jointly define the second plane. The second plane can be perpendicular to the first plane.

[0127] In other embodiments, the carrier 21 and the seat body 22 can also have other structures, and the assembly structure of the driving assembly and the carrier 21 and the seat body 22 can also have other implementation manners. For example, the structure and assembly structure of the carrier 21, the seat body 22 and the four groups of driving units 23a can be designed as a central symmetric structure with the optical axis 11 of the lens 1 as the center. At this time, the carrier 21 and the seat body 22 can be provided with four connecting columns. The structure and assembly structure of the carrier 21, the seat body 22 and the four groups of driving units 23a are not strictly limited in the embodiments of the present application.

[0128] Please refer to Figure 5 , the shell 24 can be assembled by multiple parts. In some embodiments, the shell 24 includes a lower cover 24a and an upper cover 24b, and the lower cover 24a and the upper cover 24b are assembled and matched to cover the carrier 21, the seat body 22 and the SMA driving assembly 23, thereby playing a protective and dustproof role.

[0129] Please refer to Figure 5 、 Figure 8 and Figure 9 , Figure 8 is a structural schematic view of the lower cover 24a in another angle shown in Figure 5 , Figure 9 is a structural schematic view of the lower cover 24a in another angle shown in Figure 8 .

[0130] In some embodiments, the lower cover 24a can include a bottom plate 241 and a first side plate 242, the middle part of the bottom plate 241 is provided with a first through hole 2411, and the first side plate 242 is connected to the periphery of the bottom plate 241. For example, the bottom plate 241 can include a first part 2412 and four second parts 2413. The first part 2412 is arranged around the first through hole 2411. The first part 2412 can be a continuous structure, for example, the shape of the first part 2412 can be approximately a frame-shaped plate. The first part 2412 can include four edge parts and four corner parts, which are alternately arranged in the circumferential direction of the lower cover 24a, two of the edge parts are oppositely arranged, and the other two edge parts are oppositely arranged, two of the corner parts are diagonally arranged, and the other two corner parts are diagonally arranged. The edge part can be a straight edge, and the corner part can be in a stepped or zigzag shape. The four second parts 2413 are arranged on the outer circumferential side of the first part 2412. For example, the four second parts 2413 can be arranged on the outer side of the four corner parts of the first part 2412, respectively. The second part 2413 can be in an L shape.

[0131] Exemplarily, the bottom plate 241 can further include a third portion 2414 located inward of the first portion 2412, and the first through hole 2411 is formed in the third portion 2414. The third portion 2414 can have a shape similar to a circular plate with a square outer edge. The first portion 2412 can include four edge portions and four corner portions, which are arranged alternately in the circumferential direction of the lower cover 24a, two of the edge portions are arranged opposite to each other, and the other two of the edge portions are arranged opposite to each other, two of the corner portions are arranged diagonally, and the other two of the corner portions are arranged diagonally.

[0132] In the embodiment, the axial direction of the lower cover 24a is parallel to the third direction Z. In the third direction Z, the third portion 2414, the first portion 2412 and the second portion 2413 of the bottom plate 241 form a step in sequence. As shown in Figure 8 , on the side close to the first side plate 242, the top surface of the third portion 2414, the top surface of the first portion 2412 and the top surface of the second portion 2413 form a step in sequence, and the top surface of the first portion 2412 is sunken relative to the top surface of the third portion 2414, and the top surface of the second portion 2413 is sunken relative to the top surface of the first portion 2412. Figure 9 , on the side away from the first side plate 242, the bottom surface of the second portion 2413, the bottom surface of the first portion 2412 and the bottom surface of the third portion 2414 form a step in sequence, and the bottom surface of the first portion 2412 is sunken relative to the bottom surface of the second portion 2413, and the bottom surface of the third portion 2414 is sunken relative to the bottom surface of the first portion 2412.

[0133] As shown in Figure 8 , on the side close to the first side plate 242, the four second portions 2413 are recessed relative to the first portion 2412, and correspondingly form four first sunken grooves 2415. Figure 9 , on the side away from the first side plate 242, the third portion 2414 is recessed relative to the first portion 2412, and correspondingly form a second sunken groove 2416. The second sunken groove 2416 is arranged around the first through hole 2411.

[0134] In some embodiments, the bottom plate 241 can further include a first connecting portion connected between the first portion 2412 and the second portion 2413, and a second connecting portion connected between the first portion 2412 and the third portion 2414.

[0135] Please refer to Figure 5 , in some embodiments, the upper cover 24b can include a top plate 243 and a second side plate 244, the middle portion of the top plate 243 is provided with a second through hole 2431, and the second side plate 244 is connected to the peripheral edge of the top plate 243. The top plate 243 can have a flat plate shape.

[0136] Please refer toFigure 7 , Figure 10 and Figure 11 , Figure 10 is Figure 4 a sectional view of the SMA motor 2 along A-A, Figure 11 is Figure 4 a sectional view of the SMA motor 2 along B-B.

[0137] In some embodiments, the top plate 243 of the housing 24 is arranged opposite to the bottom plate 241 in the third direction Z. The first through hole 2411 and the second through hole 2431 are arranged opposite to each other. The first side plate 242 and the second side plate 244 are located between the top plate 243 and the bottom plate 241, and the first side plate 242 and the second side plate 244 are fixedly connected to each other to allow the upper cover 24b and the lower cover 24a to be folded and fixedly connected. For example, the first side plate 242 and the second side plate 244 can be fixed together by means of threaded connection, clamping, gluing, etc. In other embodiments, the upper cover 24b can also not be provided with the second side plate 244, or the lower cover 24a can also not be provided with the first side plate 242, and the bottom plate 241 and the top plate 243 are connected by means of one side plate. The specific structure of the housing 24 is not strictly limited in the embodiments of the present application.

[0138] The distance between the third portion 2414 of the bottom plate 241 and the top plate 243 is less than the distance between the first portion 2412 of the bottom plate 241 and the top plate 243. In other words, the third portion 2414 of the bottom plate 241 is sunken in the direction of approaching the top plate 243 relative to the first portion 2412 of the bottom plate 241, and the second sunken groove 2416 is arranged away from the top plate 243. The distance between the second portion 2413 of the bottom plate 241 and the top plate 243 is greater than the distance between the first portion 2412 of the bottom plate 241 and the top plate 243. In other words, the second portion 2413 of the bottom plate 241 is sunken in the direction of moving away from the top plate 243 relative to the first portion 2412 of the bottom plate 241, and the first sunken groove 2415 is arranged towards the top plate 243. At this time, the corner regions of the housing 24 of the SMA motor 2 (corresponding to the second portion 2413 of the bottom plate 241) have a larger height, the first circle region of the housing 24 extending inwardly from the corner regions (corresponding to the first portion 2412 of the bottom plate 241) has a medium height, and the second circle region extending inwardly from the first circle region (corresponding to the third portion 2414 of the bottom plate 241) has a smaller height.

[0139] The carrier 21, the seat body 22 and the SMA driving assembly 23 are located between the top plate 243 and the bottom plate 241. The first through hole 2411 of the bottom plate 241 and the second through hole 2431 of the top plate 243 are arranged opposite to the lens mounting hole 211 of the carrier 21 and the movable hole 225 of the seat body 22. The second main body 221 of the seat body 22 is located between the first main body 212 of the carrier 21 and the bottom plate 241. The seat body 22 is fixed to the bottom plate 241, for example, can be fixed to the third part 2414 of the bottom plate 241. In some embodiments, the second main body 221 of the seat body 22 is fixed to the third part 2414 of the bottom plate 241, and the outer extension part 224 of the seat body 22 can be located between the third part 2414 of the bottom plate 241 and the first side plate 242, and between the first part 2412 of the bottom plate 241 and the top plate 243, that is, above the space of the first part 2412 of the bottom plate 241. At this time, the assembly structure of the seat body 22 and the bottom plate 241 can make full use of the space of the bottom plate 241, and reduce the height of the SMA motor 2 in the third direction Z. The first connecting column 213 and the second connecting column 214 of the carrier 21, and the third connecting column 222 and the fourth connecting column 223 of the seat body 22 are arranged correspondingly close to the four corner regions of the shell 24. At this time, the claws of the SMA driving assembly 23 are arranged correspondingly in the four corner regions of the internal space of the shell 24.

[0140] It can be understood that the SMA motor 2 has a lower threshold value in the design value of the upper stroke, the lower stroke and the claw height of the claw in order to meet the driving needs, and the local height of the shell 24 of the SMA motor 2 corresponding to the claw arrangement position needs to meet: the distance between the top plate 243 and the bottom plate 241 is greater than or equal to the sum of the upper stroke, the lower stroke and the claw height. Wherein, the upper stroke is the distance between the claw close to the top plate 243 and the top plate 243 in the third direction Z in a pair of claws, the lower stroke is the distance between the claw close to the bottom plate 241 and the bottom plate 241 in the third direction Z in a pair of claws, and the claw height is the distance between the two claws of a pair of claws in the third direction Z.

[0141] In the present embodiment, the bottom plate 241 of the shell 24 of the SMA motor 2 adopts a stepped design, so that the four corner regions of the shell 24 have the maximum height to meet the above space requirements of the claws, thereby ensuring the driving performance of the SMA motor 2, and at the same time, the height of the region inward of the four corners of the shell 24 is compressed to reduce the local height of the SMA motor 2.

[0142] In some embodiments, in the same group of driving units 23a, the second movable clamping jaw 232 is located between the first movable clamping jaw 231 and the bottom plate 241, and the first fixed clamping jaw 233 is located between the second fixed clamping jaw 234 and the bottom plate 241. In other words, in the same group of driving units 23a, the first movable clamping jaw 231 is arranged close to the top plate 243, the second movable clamping jaw 232 is arranged close to the bottom plate 241, the second fixed clamping jaw 234 is arranged close to the top plate 243, and the first fixed clamping jaw 233 is arranged close to the bottom plate 241.

[0143] For example, the second movable clamping jaw 232 can be arranged opposite the second portion 2413 of the bottom plate 241. That is, when the second movable clamping jaw 232 is projected on the bottom plate 241 along the third direction Z, the projection falls on the second portion 2413 of the bottom plate 241. In this embodiment, the distance between the second portion 2413 of the bottom plate 241 and the top plate 243 is greater than the distance between the first portion 2412 and the third portion 2414 of the bottom plate 241 and the top plate 243. By arranging the second movable clamping jaw 232 opposite the second portion 2413 of the bottom plate 241, the housing 24 can reduce the distance between the first portion 2412 and the third portion 2414 of the bottom plate 241 and the top plate 243 when the distance between the second portion 2413 of the bottom plate 241 and the top plate 243 is greater than or equal to the sum of the upstroke, downstroke and clamping jaw height of the SMA motor 2, so as to compress the local height of the SMA motor 2, thereby facilitating the compact arrangement of the SMA motor 2 and other structures when the SMA motor 2 is assembled in the camera module 30, so as to reduce the shoulder height of the camera module 30.

[0144] In some embodiments, during the focusing process, when the carrier 21 sinks relative to the seat body 22, the second movable clamping jaw 232 can partially extend into the first sink 2415.

[0145] In some embodiments, the first fixed clamping jaw 233 can be arranged opposite the second portion 2413 of the bottom plate 241. That is, in the same group of driving units 23a, the second movable clamping jaw 232 is arranged opposite one of the second portions 2413 of the bottom plate 241, and the first fixed clamping jaw 233 is arranged opposite another of the second portions 2413 of the bottom plate 241. Since the distance between the second portion 2413 of the bottom plate 241 and the top plate 243 is relatively large, the arrangement space of the first fixed clamping jaw 233 and the second fixed clamping jaw 234 is sufficient, which facilitates ensuring that the interval between the first fixed clamping jaw 233 and the second fixed clamping jaw 234 in the third direction Z meets the design requirements.

[0146] In some embodiments, as shown in FIG. 6, the first movable clamping jaw 231 and the second movable clamping jaw 232 can be arranged opposite the first portion 2412 and the third portion 2414 of the bottom plate 241, respectively. Figure 11As shown, the arrangement direction of the first movable clamping jaw 231 and the second movable clamping jaw 232 can be parallel to the third direction Z, that is, parallel to the optical axis 11 of the lens 1. The first SMA wire 235 and the second SMA wire 236 are equal in length, and the first SMA wire 235 and the second SMA wire 236 should have equal angles of inclination with respect to the optical axis 11 of the lens 1. The arrangement direction of the first fixed clamping jaw 233 and the second fixed clamping jaw 234 can also be parallel to the optical axis 11 of the lens 1, that is, parallel to the third direction Z.

[0147] In this embodiment, the first movable clamping jaw 231 and the second movable clamping jaw 232 have the same structure, and the arrangement direction of the two is parallel to the third direction Z, which can achieve symmetrical arrangement up and down, thereby reducing assembly requirements, facilitating debugging, and making the assembly yield of the SMA motor 2 higher. The first fixed clamping jaw 233 and the second fixed clamping jaw 234 have the same structure, and the arrangement direction of the two is parallel to the third direction Z, which can achieve symmetrical arrangement up and down, thereby reducing assembly requirements, facilitating debugging, and making the assembly yield of the SMA motor 2 higher.

[0148] The pair of movable clamping jaws (231, 232) and the pair of fixed clamping jaws (233, 234) of the SMA driving assembly 23 can also be arranged symmetrically left and right, that is, symmetrically with respect to the XZ plane or symmetrically with respect to the YZ plane, thereby further reducing assembly requirements and debugging difficulty and improving the assembly yield of the SMA motor 2.

[0149] It can be understood that in the camera module 30, after the image target surface and the lens specifications are determined, in order to ensure the image quality, the length and angle (i.e. the angle with the optical axis 11 of the lens 1) of the plurality of SMA wires (235, 236) of the SMA motor 2 are also determined. Therefore, the driving unit 23a of the SMA motor 2 needs to be designed while maintaining the length and angle of the plurality of SMA wires (235, 236). In the embodiment of the present application, when the local height of the SMA motor 2 is compressed, i.e. when the distance between the first portion 2412 and the third portion 2414 of the bottom plate 241 and the top plate 243 is compressed, the component that needs to change the position of the SMA motor 2 should not interfere with the plurality of SMA wires (235, 236). For example, the seat body 22 will move towards the top plate 243 along with the third portion 2414 of the bottom plate 241, and the extension part 224 of the seat body 22 may touch the plurality of SMA wires (235, 236). However, since the extension part 224 of the seat body 22 needs to arrange the gold fingers to ensure the electrical connection, the size of the extension part 224 is difficult to compress. Therefore, in the embodiment of the present application, in order to ensure that there is always a gap between the seat body 22 and the plurality of SMA wires (235, 236), the positions of the movable clamping jaws (231, 232), the SMA wires (235, 236) and the fixed clamping jaws (233, 234) are designed, for example, the SMA wires (235, 236) are translated, so that the SMA wires (235, 236) avoid the extension part 224 of the seat body 22.

[0150] Please refer to Figure 12 to Figure 15 , Figure 12 is Figure 4 the internal structure of the SMA motor 2 shown in FIG. 2B, Figure 13 is Figure 12 a structure diagram of the SMA driving assembly 23 of the SMA motor 2 shown in FIG. 2B, Figure 14 is Figure 13 a structure diagram of the SMA driving assembly 23 shown in FIG. 2B from another angle, Figure 15 is Figure 13 a structure diagram of the four driving units 23a of the SMA driving assembly 23. The SMA motor 2 of the embodiment can include most of the technical features of the SMA motor 2 of the above embodiment, and the following mainly explains the differences between the two, and the same parts of the two will not be repeated.

[0151] In some embodiments, the distance between the second movable jaw 232 and the first ridge line 2133 is smaller than the distance between the first movable jaw 231 and the first ridge line 2133 in the same group of driving units 23a fixed to the first connecting column 213 of the carrier 21. The distance between the first fixed jaw 233 and the third ridge line 2223 is smaller than the distance between the second fixed jaw 234 and the third ridge line 2223 in the same group of driving units 23a fixed to the third connecting column 222 of the seat 22. Similarly, the distance between the second movable jaw 232 and the second ridge line 2143 is smaller than the distance between the first movable jaw 231 and the second ridge line 2143 in the same group of driving units 23a fixed to the second connecting column 214. The distance between the first fixed jaw 233 and the fourth ridge line 2233 is smaller than the distance between the second fixed jaw 234 and the fourth ridge line 2233 in the same group of driving units 23a fixed to the fourth connecting column 223.

[0152] In the present embodiment, the movable jaws (231, 232) and the fixed jaws (233, 234) of the SMA driving assembly 23 are arranged asymmetrically in the up-down direction, and the plurality of SMA wires (235, 236) are translated in a direction perpendicular to the third direction Z and away from the extension 224 of the seat 22 to avoid the extension 224 of the seat 22, so that a gap is always maintained between the plurality of SMA wires (235, 236) and the extension 224 of the seat 22, thereby ensuring the reliability of the SMA motor 2. In addition, since the space around the first ridge line 2133 and the second ridge line 2143 is the reserved jaw movement space, the space is large, and moving the movable jaw to the space is beneficial to improve the space utilization of the SMA motor 2.

[0153] For example, the four groups of driving units 23a can be symmetrical with respect to the first plane and symmetrical with respect to the second plane to improve the stability and reliability of the SMA motor 2. The arrangement direction I of the first connecting column 213 and the second connecting column 214 and the axial direction of the carrier 21 can jointly define the first plane, the arrangement direction II of the third connecting column 222 and the fourth connecting column 223 and the axial direction of the carrier 21 can jointly define the second plane, and the second plane can be perpendicular to the first plane.

[0154] For example, the intersection position of the two SMA wires (235, 236) is centrally arranged, that is, aligned with the optical axis 11 of the lens 1 in the first direction X or the second direction Y. Specifically, the projections of the two SMA wires (235, 236) on the reference plane form an intersection point, the reference plane is parallel to the optical axis 11 of the lens 1 and parallel to the two SMA wires (235, 236), and the projection of the optical axis 11 of the lens 1 on the reference plane covers the intersection point.

[0155] In the present embodiment, the first moving jaw 231, the first SMA wire 235 and the first fixed jaw 233 are symmetric to the second moving jaw 232, the second SMA wire 236 and the first fixed jaw 233 with respect to the XZ plane or the YZ plane, so that the driving action of the driving assembly of the SMA motor 2 is more easily implemented, and the driving precision is high. In other embodiments, the intersection position of the two SMA wires (235, 236) can also be arranged off-center, for example, close to the first ridge line 2133 or the second ridge line 2143 relative to the optical axis 11 of the lens 1.

[0156] Please refer to Figure 4 , Figure 16 and Figure 17 , Figure 16 are shown in the exploded structural schematic diagram of the photosensitive assembly 3 shown in Figure 4 , Figure 17 are shown in the cross-sectional structural schematic diagram of the photosensitive assembly 3 along the C-C section shown in Figure 4 . It can be understood that Figure 16 and Figure 17 schematically show some components included in the photosensitive assembly 3, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 16 and Figure 17 , and the photosensitive assembly 3 can also include more or fewer components than Figure 16 and Figure 17 .

[0157] In some embodiments, the photosensitive assembly 3 includes a substrate 31, an image sensor 32, a first connecting layer 33, a filter support 34, a second connecting layer 35, a filter 36 and a third connecting layer 37.

[0158] For example, the substrate 31 includes a circuit board 311 and a reinforcing plate 312, and the reinforcing plate 312 is fixed to one side of the circuit board 311 in a laminated manner, and the reinforcing plate 312 is used to increase the structural strength of the circuit board 311. Among them, the circuit board 311 can be a hard circuit board, or a flexible circuit board, or a soft and hard combined circuit board. The circuit board 311 can use an FR-4 medium plate, or a Rogers medium plate, or a mixed medium plate of Rogers and FR-4, etc. The reinforcing plate 312 can be a steel plate or an aluminum plate, etc. In other embodiments, the substrate 31 can also not include the reinforcing plate 312.

[0159] The four corners of the substrate 31 are provided with recessed avoidance spaces 313. The avoidance spaces 313 can be recessed from the outside of the substrate 31 to the inside of the substrate 31. The avoidance spaces 313 can be through holes or grooves. In this embodiment, the through holes are taken as an example for illustration. At this time, the avoidance spaces 313 penetrate the circuit board 311 and the reinforcing plate 312 in the thickness direction of the substrate 31. The thickness direction of the substrate 31 is parallel to the third direction Z.

[0160] The middle part of the substrate 31 can also be provided with a mounting hole 314. The mounting hole 314 penetrates the circuit board 311 and exposes part of the reinforcing plate 312. The image sensor 32 can be at least partially located in the mounting hole 314, thereby reducing the height of the camera module 30 in the third direction Z. The image sensor 32 can also be referred to as a photosensitive chip or a photosensitive element. The image sensor 32 is used to collect scene light passing through the lens 1 and convert the image information carried by the scene light into an electrical signal. The image sensor 32 can be fixedly connected to the reinforcing plate 312 through a first connecting layer 33. The first connecting layer 33 can be a glue layer or the like. In other embodiments, the substrate 31 can also not be provided with the mounting hole 314. The image sensor 32 is located on the side of the circuit board 311 away from the reinforcing plate 312. The image sensor 32 can be fixedly connected to the circuit board 311 through the first connecting layer 33.

[0161] For example, the filter holder 34 can be substantially frame-shaped as a whole. The filter holder 34 and the image sensor 32 are located on the same side of the substrate 31. The filter holder 34 is fixed to the substrate 31 and surrounds the image sensor 32. For example, the filter holder 34 can be fixed to the substrate 31 through a second connecting layer 35. The second connecting layer 35 can be a glue layer or the like. The filter 36 is fixed to the filter holder 34 and faces the image sensor 32. The filter 36 can be fixed to the filter holder 34 through a third connecting layer 37. The third connecting layer 37 can be a glue layer or the like.

[0162] In some embodiments, the filter holder 34 can include an insulating body 341 and a magnetic conducting member 342 embedded in the insulating body 341. The filter holder 34 can be formed by an insert-molding process. In this embodiment, the filter holder 34 has a high structural strength, which is beneficial to reduce the risk of the filter 36 being broken. The insulating body 341 can be made of an insulating material such as plastic. The magnetic conducting member 342 has a high magnetic permeability and can also conduct electricity. In some embodiments, the magnetic conducting member 342 can be made of a magnetic conducting material such as, but not limited to, SPCC (steel-plate-cold-common, generally cold-rolled carbon steel sheet and steel strip), SUS430 (430 stainless steel), or 65Mn (spring steel). In other embodiments, the magnetic conducting member 342 can also be formed by plating a magnetic conducting layer on a non-magnetic conducting structure member to achieve the magnetic conducting function. The non-magnetic conducting structure member can be, for example, a stainless steel member to have a high structural strength. The magnetic conducting layer can be, for example, a nickel layer, a copper layer, or the like.

[0163] Please refer to Figure 17 and Figure 18 , Figure 18 is Figure 4 a structural schematic view of the light sensing assembly 3 from another angle.

[0164] In some embodiments, the insulating body 341 of the filter holder 34 is fixed to the substrate 31, and the magnetic conducting member 342 is electrically connected to the substrate 31 to achieve grounding.

[0165] The magnetic conducting member 342 can be fixed to the substrate 31 by, for example, soldering, conductive glue, or a surface mount technology (SMT) process.

[0166] For example, the circuit board 311 of the substrate 31 can be provided with a solder pad 3111, which is realized by a partial area of the conductive layer in the circuit board 311. The insulating body 341 of the filter holder 34 is provided with a first groove 3411, which is recessed from the outer side of the insulating body 341 to the inside of the insulating body 341 and penetrates the insulating body 341 along the thickness direction of the filter holder 34, which is parallel to the third direction Z. Part of the magnetic conductive member 342 is exposed relative to the insulating body 341 and located in the first groove 3411. The magnetic conductive member 342 can be provided with a second groove 3421, which is recessed from the outer side of the magnetic conductive member 342 to the inside of the magnetic conductive member 342 and penetrates the magnetic conductive member 342 along the thickness direction of the filter holder 34. At this time, the part of the magnetic conductive member 342 exposed in the second groove 3421 can be approximately crescent-shaped or half-frame-shaped. The second groove 3421 and the first groove 3411 are both arranged opposite the solder pad 3111 on the substrate 31, and the solder 315 is applied on the second groove 3421, the first groove 3411 and the solder pad 3111 to electrically connect the magnetic conductive member 342 and the substrate 31, so that the magnetic conductive member 342 can be arranged to be grounded.

[0167] In the embodiment, the structure design of the second groove 3421 and the first groove 3411 can guide the soldering 315 during the soldering process, so that the soldering structure is stable and the impedance of the solder is stable. It can be understood that in other embodiments, the insulating body 341 and the magnetic conductive member 342 of the filter holder 34 can also guide the soldering 315 through other structures to ensure the quality of the soldering, and the embodiments of the present application are not strictly limited in this regard. In other embodiments, conductive silver paste or other conductive materials or conductive structures can be used to connect the magnetic conductive member 342 and the substrate 31, and the embodiments of the present application are not strictly limited in this regard.

[0168] Please refer again to Figure 16 and Figure 17 In some embodiments, the insulating body 341 of the filter holder 34 can be frame-shaped, the magnetic conductive member 342 can be frame-shaped, the magnetic conductive member 342 protrudes relative to the inner circumferential side of the insulating body 341, and the filter 36 is fixed to the magnetic conductive member 342. At this time, the magnetic conductive member 342 is used to provide a support step for supporting the filter 36, and compared with the plastic step used in the conventional filter holder 34, the thickness of the support step in the embodiment can be reduced from about 0.18 mm to about 0.1 mm, which is beneficial to reduce the back focus of the lens 1 and thus reduce the total height of the camera module 30.

[0169] The filter 36 is used to filter stray light from the scene light passing through the lens 1, thereby ensuring that the image captured by the camera module 30 has better clarity. The filter 36 can be, but is not limited to, a blue glass filter. For example, the filter 36 can also be an infrared cut filter (IRCF) or a dual-pass filter. The dual-pass filter allows visible light and infrared light in the scene light to pass through simultaneously, or allows visible light in the scene light to pass through simultaneously with other light of a specific wavelength (e.g., ultraviolet light), or allows infrared light to pass through simultaneously with other light of a specific wavelength (e.g., ultraviolet light).

[0170] Please see Figure 19 to Figure 22 , Figure 19 yes Figure 3 The diagram shows a partial view of the camera module 30 from another angle. Figure 20 yes Figure 3 The diagram shows the structure of the camera module 30 from another angle. Figure 21 yes Figure 3 The diagram shows a cross-sectional view of the camera module 30 taken along the DD direction. Figure 22 yes Figure 21 The diagram shows the structure from another angle.

[0171] In some embodiments, the first adhesive layer 4 is fixed to the surface of the first portion 2412 of the base plate 241 away from the top plate 243, and the first adhesive layer 4 is also fixed to the substrate 31, so that the first portion 2412 of the base plate 241 is fixed to the substrate 31. The first portion 2412 of the base plate 241 can be fixed to the circuit board 311 of the substrate 31, and a reinforcing plate 312 is stacked on the side of the circuit board 311 away from the first portion 2412. The shape of the first adhesive layer 4 can be adapted to the shape of the first portion 2412 of the base plate 241 to increase the connection area between the first portion 2412 of the base plate 241 and the substrate 31, thereby improving the connection strength. The four second portions 2413 of the base plate 241 are at least partially located in the four clearance spaces 313 of the substrate 31.

[0172] In this embodiment, the shoulder height H of the camera module 30, the height H1 of the SMA motor 2 in the third direction Z, the thickness H2 of the substrate 31 in the third direction Z, and the depth T of the second part 2413 of the base plate 241 extending into the clearance space 313 of the substrate 31 satisfy: H = H1 + H2 - T. Wherein, the depth T of the second part 2413 of the base plate 241 extending into the clearance space 313 of the substrate 31 refers to the distance in the third direction Z between the surface of the second part 2413 of the base plate 241 that is away from the top plate 243 and the surface of the first part 2412 of the substrate 31 that is close to the base plate 241.

[0173] In the embodiment, the bottom plate 241 of the SMA motor 2 adopts a stepped structure, so that the distance between the second part 2413 of the bottom plate 241 and the top plate 243 is large, to ensure the driving performance of the SMA motor 2, so as to ensure the shooting quality of the camera module 30; at the same time, the distance between the first part 2412 of the bottom plate 241 and the top plate 243 is small, the first part 2412 of the bottom plate 241 is fixed to the substrate 31, and the second part 2413 of the bottom plate 241 is embedded in the avoiding space 313 of the substrate 31, so that the height of the SMA motor 2 and the photosensitive assembly 3 after assembly is small, thereby effectively reducing the shoulder height of the camera module 30, realizing the thinness of the camera module 30, and reducing the influence on the overall thickness and appearance modeling of the electronic device 100 using the camera module 30.

[0174] In some embodiments, a first distance is formed between the surface of the second part 2413 of the bottom plate 241 away from the top plate 243 and the surface of the top plate 243 away from the bottom plate 241, a second distance is formed between the surface of the substrate 31 away from the top plate 243 and the surface of the top plate 243 away from the bottom plate 241, and the first distance is slightly smaller than the second distance, so as to reserve the assembly tolerance of the SMA motor 2 and the photosensitive assembly 3 in the third direction Z while reducing the shoulder height of the camera module 30, thereby improving the assembly precision of the camera module 30. In other embodiments, the surface of the second part 2413 of the bottom plate 241 away from the top plate 243 can also be flush with the surface of the substrate 31 away from the top plate 243, so as to further reduce the shoulder height of the camera module 30. In other words, the depth T of the second part 2413 of the bottom plate 241 extending into the avoiding space 313 of the substrate 31 can be close to the sum of the thickness of the substrate 31 and the first adhesive layer 4, and in some embodiments, the shoulder height of the camera module 30 can be reduced by about 0.4mm to 0.6mm in thickness compared with the conventional scheme, for example, by about 0.5mm in thickness.

[0175] In some embodiments, the distance between the second part 2413 of the bottom plate 241 of the SMA motor 2 and the top plate 243 can be approximately the height of the existing SMA, so that the SMA motor 2 can simultaneously drive the carrier 21, the lens 1 fixed to the carrier 21, and the variable aperture fixed to the carrier 21 or the lens 1.

[0176] Please refer to Figure 23 , Figure 23 is Figure 3 the cross-sectional structure schematic diagram of the camera module 30 along E-E.

[0177] In some embodiments, the lens 1 is mounted in the lens mounting hole 211 of the carrier 21 to be fixed to the carrier 21. In this case, the lens 1 can be partially accommodated in the movable hole 225 of the seat body 22 to facilitate reducing the height of the camera module 30 in the third direction Z. The light-in side of the lens 1 can be exposed by the second through hole 2431 of the top plate 243 of the shell 24, and the first through hole 2411 of the bottom plate 241 is opposite to the lens 1. The image sensor 32 is fixed to the middle part of the substrate 31 and electrically connected to the substrate 31, and the image sensor 32 is arranged to face the lens 1.

[0178] The third part 2414 of the bottom plate 241 is closer to the top plate 243 than the first part 2412 of the bottom plate 241, so that the accommodation space 245 is formed between the third part 2414 of the bottom plate 241 and the substrate 31, and the height of the accommodation space 245 is the sum of the height of the second sink 2416 (as shown in Figure 19 In this embodiment, part of the structure of the photosensitive assembly 3 can be arranged in the accommodation space 245 to make the assembly structure of the SMA motor 2 and the photosensitive assembly 3 more compact, thereby reducing the height of the camera module 30 in the third direction Z.

[0179] For example, the filter support 34 is fixed to the side of the substrate 31 close to the lens 1, the filter 36 is located between the lens 1 and the image sensor 32 and is fixed to the filter support 34. The filter 36 and the filter support 34 are located between the first through hole 2411 and the substrate 31 and / or between the third part 2414 of the bottom plate 241 and the substrate 31.

[0180] In the camera module 30, since the plurality of SMA wires (235, 236) of the SMA motor 2 are controlled by the PWM (Pulse-width modulation) voltage, the PWM signal is easy to be coupled with the signal of the image sensor 32, which causes the image sensor 32 to be interfered, and there is a risk of image distortion (such as appearing stripes), freezing and the like. In this embodiment, the filter support 34 is located on the side of the image sensor 32 close to the SMA motor 2, and the magnetic conducting member 342 of the filter support 34 is grounded, and the magnetic conducting member 342 has magnetic conducting capability, so as to shield or reduce the interference of the PWM signal of the SMA motor 2 on the image sensor 32, thereby improving the imaging quality of the camera module 30.

[0181] Please refer to Figure 24 and Figure 25 , Figure 24 is Figure 2 the structural schematic diagram of the camera module 30 in some other embodiments, Figure 25 is Figure 24A partial exploded view of the camera module 30 is shown. The camera module 30 of the present embodiment can include most of the technical features of the camera module 30 of the above embodiment, and the differences between the two will be mainly described below. It can be understood that, Figure 24 and Figure 25 Only some of the components included in the camera module 30 are shown schematically, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 24 and Figure 25 The camera module 30 can also include more or fewer components than Figure 24 and Figure 25 .

[0182] In some embodiments, the camera module 30 includes the lens 1, the SMA motor 2, the photosensitive assembly 3, the first adhesive layer 4 and the second adhesive layer 5. The lens 1 is fixed to the SMA motor 2, and the SMA motor 2 is used to drive the lens 1 to move to achieve automatic focusing and / or optical image stabilization. The SMA motor 2 can be fixed to the photosensitive assembly 3 through the first adhesive layer 4 and the second adhesive layer 5.

[0183] Please refer to Figure 26 and Figure 27 , Figure 26 is an exploded view of the photosensitive assembly 3 shown in Figure 25 Figure 27 is a cross-sectional view of the photosensitive assembly 3 along F-F shown in Figure 25 It can be understood that, Figure 26 and Figure 27 Only some of the components included in the photosensitive assembly 3 are shown schematically, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 26 and Figure 27 The photosensitive assembly 3 can also include more or fewer components than Figure 26 and Figure 27 .

[0184] In some embodiments, the photosensitive assembly 3 includes the substrate 31, the image sensor 32, the first connecting layer 33, the filter support 34, the second connecting layer 35, the filter 36 and the third connecting layer 37.

[0185] ​Exemplarily, the substrate 31 comprises a circuit board 311 and a reinforcing plate 312, the reinforcing plate 312 is fixed to one side of the circuit board 311 in a laminated manner, and the reinforcing plate 312 is used to increase the structural strength of the circuit board 311. The circuit board 311 can be a rigid circuit board, a flexible circuit board, or a combination of rigid and flexible circuit board. The circuit board 311 can be an FR-4 medium plate, a Rogers medium plate, or a hybrid medium plate of Rogers and FR-4, etc. The reinforcing plate 312 can be a steel plate or an aluminum plate, etc.

[0186] The substrate 31 is provided with a recessed avoiding space 313 at the four corners, the avoiding space 313 can be recessed from the outside of the substrate 31 to the inside of the substrate 31. The avoiding space 313 can be a groove. At this time, the avoiding space 313 penetrates the circuit board 311 and exposes part of the reinforcing plate 312 in the thickness direction of the substrate 31. The thickness direction of the substrate 31 is parallel to the third direction Z.

[0187] The middle part of the substrate 31 can also be provided with a mounting hole 314, the mounting hole 314 penetrates the circuit board 311 and exposes part of the reinforcing plate 312. The image sensor 32 can be located at least partially in the mounting hole 314, and the image sensor 32 can be fixedly connected to the reinforcing plate 312 through the first connecting layer 33. The first connecting layer 33 can be a glue layer, etc. In other embodiments, the substrate 31 can also not be provided with the mounting hole 314, and the image sensor 32 is located on the side of the circuit board 311 away from the reinforcing plate 312, and the image sensor 32 can be fixedly connected to the circuit board 311 through the first connecting layer 33.

[0188] Exemplarily, the filter holder 34 can be generally frame-shaped as a whole. The filter holder 34 and the image sensor 32 are located on the same side of the substrate 31, and the filter holder 34 is fixed to the substrate 31 and surrounds the image sensor 32. For example, the filter holder 34 can be fixed to the substrate 31 through the second connecting layer 35, and the second connecting layer 35 can be a glue layer, etc. The filter 36 is fixed to the filter holder 34 and faces the image sensor 32. The filter 36 can be fixed to the filter holder 34 through the third connecting layer 37, and the third connecting layer 37 can be a glue layer, etc.

[0189] Please refer to Figure 28 and Figure 29 , Figure 28 is Figure 24 the cross-sectional structure schematic view of the camera module 30 shown in FIG. 8 along G-G, Figure 29 is Figure 28 the structure schematic view of the structure shown in FIG. 8 from another angle.

[0190] In some embodiments, the first portion 2412 of the bottom plate 241 of the SMA motor 2 is fixed to the circuit board 311 of the substrate 31, and the reinforcing plate 312 of the substrate 31 is laminated on the side of the circuit board 311 away from the first portion 2412 of the bottom plate 241. The second portion 2413 of the bottom plate 241 of the SMA motor 2 is fixed to the reinforcing plate 312 of the substrate 31. For example, the first portion 2412 of the bottom plate 241 can be bonded to the circuit board 311 of the substrate 31 by the first adhesive layer 4, and the second portion 2413 of the bottom plate 241 can be bonded to the reinforcing plate 312 of the substrate 31 by the second adhesive layer 5. The number of the second adhesive layer 5 is four.

[0191] In the present embodiment, the shoulder height H of the camera module 30, the height H1 of the SMA motor 2 in the third direction Z, the thickness H2 of the substrate 31 in the third direction Z, and the depth T of the second portion 2413 of the bottom plate 241 extending into the avoiding space 313 of the substrate 31 satisfy H = H1 + H2 - T. The depth T of the second portion 2413 of the bottom plate 241 extending into the avoiding space 313 of the substrate 31 refers to the distance in the third direction Z between the surface of the second portion 2413 of the bottom plate 241 away from the top plate 243 and the surface of the substrate 31 close to the first portion 2412 of the bottom plate 241.

[0192] In the present embodiment, the bottom plate 241 of the SMA motor 2 adopts a stepped structure, so that the distance between the second portion 2413 of the bottom plate 241 and the top plate 243 is large, to ensure the driving performance of the SMA motor 2, thereby ensuring the shooting quality of the camera module 30. At the same time, the distance between the first portion 2412 of the bottom plate 241 and the top plate 243 is small, the first portion 2412 of the bottom plate 241 is fixed to the substrate 31, and the second portion 2413 of the bottom plate 241 is embedded in the avoiding space 313 of the substrate 31, so that the height of the assembled SMA motor 2 and the photosensitive assembly 3 is small, thereby effectively reducing the shoulder height of the camera module 30, realizing the thinness of the camera module 30, and reducing the influence on the overall thickness and appearance modeling of the electronic device 100 using the camera module 30.

[0193] In addition, since the first portion 2412 of the bottom plate 241 of the SMA motor 2 is fixedly connected to the substrate 31, and the second portion 2413 is also fixedly connected to the substrate 31, the connection area of the bottom plate 241 and the substrate 31 is large, thereby reducing the risk of delamination between the bottom plate 241 and the substrate 31, and improving the structural reliability of the camera module 30.

[0194] In some embodiments, the depth T of the second portion 2413 of the bottom plate 241 extending into the relief space 313 of the substrate 31 can be close to the thickness of the circuit board 311, for example, the shoulder height of the camera module 30 can be reduced by about 0.2mm to 0.4mm, for example, about 0.25mm to 0.3mm.

[0195] In other embodiments, the second portion 2413 of the bottom plate 241 can also not be bonded with the reinforcing plate 312, and the camera module 30 can not be provided with the second adhesive layer 5, so that the value of the depth T of the second portion 2413 of the bottom plate 241 extending into the relief space 313 of the substrate 31 is larger, so as to further reduce the shoulder height of the camera module 30.

[0196] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict, and any combination of features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined as needed.

[0197] It should be noted that all the above-mentioned drawings are exemplary illustrations of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application.

[0198] The above is only part of the embodiments and implementations of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A camera module (30), characterized in that, Includes a lens (1) and an SMA motor (2). The SMA motor (2) includes a carrier (21), a base (22), and an SMA drive assembly (23). The lens (1) is fixed to the carrier (21). The SMA drive assembly (23) connects the carrier (21) and the base (22). The SMA drive assembly (23) is used to drive the carrier (21) to move relative to the base (22) to achieve autofocus and / or optical image stabilization. The SMA motor (2) also includes a top plate (243) and a bottom plate (241) disposed opposite to each other. The carrier (21), the seat (22) and the SMA drive assembly (23) are located between the top plate (243) and the bottom plate (241). The bottom plate (241) is provided with a first through hole (2411) facing the lens (1). The bottom plate (241) includes a first part (2412) and four second parts (2413). The first part (2412) is disposed around the first through hole (2411). The four second parts (2413) are arranged at intervals on the outer periphery of the first part (2412). The distance between the second part (2413) and the top plate (243) is greater than the distance between the first part (2412) and the top plate (243). The camera module (30) further includes a substrate (31) and an image sensor (32). The substrate (31) has recessed clearance spaces (313) at its four corners. The first part (2412) is fixed to the substrate (31), and the second part (2413) is at least partially located in the clearance space (313). The image sensor (32) is fixed to the middle of the substrate (31) and electrically connected to the substrate (31). The image sensor (32) is positioned facing the lens (1).

2. The camera module (30) according to claim 1, characterized in that, The SMA drive assembly (23) includes four sets of drive units (23a), which are evenly arranged around the carrier (21) in the circumferential direction. Each drive unit (23a) includes a pair of moving jaws (231, 232), a pair of fixed jaws (233, 234), and two SMA wires (235, 236); The pair of movable claws (231, 232) are fixed to the carrier (21), and the pair of fixed claws (233, 234) are fixed to the base (22). The pair of movable claws (231, 232) and the pair of fixed claws (233, 234) are arranged at intervals along the circumference of the carrier (21). The two SMA threads (235, 236) are cross-connected between the pair of movable claws (231, 232) and the pair of fixed claws (233, 234). Along the circumference of the carrier (21), a pair of moving claws (231, 232) of two adjacent sets of the drive units (23a) are arranged adjacently, or a pair of fixed claws (233, 234) of two adjacent sets of the drive units (23a) are arranged adjacently.

3. The camera module (30) according to claim 2, characterized in that, The pair of movable jaws (231, 232) includes a first movable jaw (231) and a second movable jaw (232). The second movable jaw (232) is located between the first movable jaw (231) and the base plate (241), and the second movable jaw (232) is positioned directly opposite the second part (2413).

4. The camera module (30) according to claim 3, characterized in that, In the same set of drive units (23a), the first moving claw (231) and the second moving claw (232) are arranged in a direction parallel to the optical axis (11) of the lens (1).

5. The camera module (30) according to claim 3, characterized in that, The carrier (21) includes a first side surface (2131) and a fourth side surface (2132) arranged adjacent to each other. The intersection of the first side surface (2131) and the fourth side surface (2132) forms a first ridge line (2133). A pair of movable claws (231, 232) of one set of driving units (23a) are fixed to the first side surface (2131), and a pair of movable claws (231, 232) of another set of driving units (23a) are fixed to the fourth side surface (2132). In the same group of drive units (23a), the distance between the second moving claw (232) and the first ridge line (2133) is less than the distance between the first moving claw (231) and the first ridge line (2133).

6. The camera module (30) according to claim 5, characterized in that, The projections of the two SMA threads (235, 236) onto the reference plane form an intersection point. The reference plane is parallel to the optical axis (11) of the lens (1) and parallel to the two SMA threads (235, 236). The projection of the optical axis (11) of the lens (1) onto the reference plane covers the intersection point.

7. The camera module (30) according to any one of claims 2 to 6, characterized in that, The carrier (21) includes a first body (212), a first connecting post (213) and a second connecting post (214). The first body (212) includes four first corners. The first connecting post (213) and the second connecting post (214) are respectively fixed to two of the first corners that are diagonally opposite. The moving claws of the four sets of drive units (23a) are fixed to the first connecting post (213) and the second connecting post (214). The other two first corners that are diagonally opposite are respectively provided with a first notch (215) and a second notch (216). The seat (22) includes a second main body (221), a third connecting post (222), and a fourth connecting post (223). The second main body (221) includes four second corner portions. The third connecting post (222) and the fourth connecting post (223) are respectively fixed to two of the diagonally opposite second corner portions. The fixed claws of the four sets of drive units (23a) are fixed to the third connecting post (222) and the fourth connecting post (223). The other two diagonally opposite second corner portions are respectively provided with a third notch (226) and a fourth notch (227). The second main body (221) is located between the first main body (212) and the base plate (241). The first connecting post (213) is partially located in the third notch (226), the second connecting post (214) is partially located in the fourth notch (227), the third connecting post (222) is partially located in the first notch (215), and the fourth connecting post (223) is partially located in the second notch (216).

8. The camera module (30) according to claim 7, characterized in that, The second body (221) also includes four second sides, which are arranged alternately with the four second corners. The base (22) also includes at least one extension (224), which is fixed to the outer surface of the four second sides. In a direction parallel to the optical axis (11) of the lens (1), the size of the extension portion (224) is larger than the size of the second body (221), and at least one of the extension portions (224) is provided with exposed gold fingers.

9. The camera module (30) according to any one of claims 1 to 8, characterized in that, The substrate (31) includes a circuit board (311) and a reinforcing plate (312). The first part (2412) is fixed to the circuit board (311). The reinforcing plate (312) is stacked on the side of the circuit board (311) away from the first part (2412). The clearance space (313) passes through the circuit board (311) and the reinforcing plate (312).

10. The camera module (30) according to any one of claims 1 to 8, characterized in that, The substrate (31) includes a circuit board (311) and a reinforcing plate (312). The first part (2412) is fixed to the circuit board (311). The reinforcing plate (312) is stacked on the side of the circuit board (311) away from the first part (2412). The clearance space (313) penetrates the circuit board (311) and exposes part of the reinforcing plate (312).

11. The camera module (30) according to claim 10, characterized in that, The first part (2412) is bonded to the circuit board (311), and the second part (2413) is bonded to the reinforcing plate (312).

12. The camera module (30) according to any one of claims 1 to 11, characterized in that, The camera module (30) also includes a filter (36) and a filter bracket (34). The filter bracket (34) is fixed to the side of the substrate (31) near the lens (1) and is arranged around the image sensor (32). The filter (36) is located between the lens (1) and the image sensor (32) and is fixed to the filter bracket (34).

13. The camera module (30) according to claim 12, characterized in that, The base plate (241) further includes a third part (2414), which is located inside the first part (2412). The first through hole (2411) is formed in the third part (2414). The distance between the third part (2414) and the top plate (243) is less than the distance between the first part (2412) and the top plate (243). The seat (22) is fixed to the third part (2414). The filter (36) and the filter holder (34) are located between the first through hole (2411) and the substrate (31) and / or between the third part (2414) and the substrate (31).

14. The camera module (30) according to claim 12 or 13, characterized in that, The filter holder (34) includes an insulating body (341) and a magnetic conductor (342). The magnetic conductor (342) is embedded in the insulating body (341), the insulating body (341) is fixed to the substrate (31), and the magnetic conductor (342) is electrically connected to the substrate (31).

15. The camera module (30) according to claim 14, characterized in that, The insulating body (341) is frame-shaped, the magnetic conductive element (342) is frame-shaped, the magnetic conductive element (342) protrudes from the inner peripheral side of the insulating body (341), and the filter (36) is fixed to the magnetic conductive element (342).

16. An electronic device (100), characterized in that, It includes an image processor (60) and a camera module (30) as claimed in any one of claims 1 to 15, wherein the image processor (60) is communicatively connected to the camera module (30).

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