Camera module and manufacturing method therefor

Abstract

The present application provides a camera module and a manufacturing method therefor. The camera module comprises an optical module, a movable member, a coil assembly, and a magnet. The optical module is mounted on the movable member. One of the coil assembly and the magnet is mounted on the movable member, and is located on at least one side of the optical module. The coil assembly and the magnet interact with each other to generate a driving force, which drives the movable member to carry the optical module to move. The magnet comprises a first portion and a second portion, and the first portion and the second portion respectively form polarity parts with different polarities on the side facing the coil assembly. The coil assembly comprises a substrate and coil patterns formed on the substrate, and the coil patterns include a first coil pattern extending in a first direction and a second coil pattern extending in a second direction perpendicular to the first direction, wherein the extension direction of the first coil pattern is parallel to the arrangement direction of the first portion and the second portion, and the width of the first coil pattern is greater than that of the second coil pattern.

Description

Camera module and manufacturing method thereof Technical Field

[0001] The present application relates to the field of camera modules, and more specifically to camera modules and methods for manufacturing the same. Background Art

[0002] Camera modules are an essential component of mobile electronic devices. With the advancement of camera module technology, user demands for these modules are becoming increasingly sophisticated and demanding. The development of camera products must not only meet high performance requirements but also meet the requirements of miniaturization and portability.

[0003] The camera module consists of a lens module, a motor, and a photosensitive module. Light passes through the lens module to the photosensitive component and is received by the photosensitive chip in the photosensitive module. The motor is used to drive the lens module, photosensitive module, and other optical modules.

[0004] To further improve image quality and enable more imaging functions, camera modules typically include autofocus (AF) and optical image stabilization (OIS). A motor drives the optical module to achieve these functions. The most common form of motor is a voice coil motor. Voice coil motors generate driving force through the interaction between a magnet and a coil. The performance of the coil and magnet affects the overall performance of the motor. For example, the coil's wire width, thickness, and number of turns affect its performance. When power is applied, the coil heats up. The coil's resistance affects the degree of heat generation, which in turn affects the motor's power consumption. The coil must be designed appropriately to ensure performance while minimizing resistance to minimize motor power consumption.

[0005] The coil design of the voice coil motor currently used in camera modules is mainly based on a uniform width wiring method. The line width of the coil is the same at any position, and the coil traces usually have uniform width, thickness and spacing, which simplifies the coil design but cannot provide optimal performance.

[0006] The resistance of a coil is inversely proportional to its cross-sectional area. Therefore, increasing the coil's cross-sectional area, such as by spirally changing the wire width, is an option. However, this approach significantly increases the coil's size. Currently, camera modules are increasingly demanding miniaturization, and the space they occupy within electronic devices is very limited. Terminal manufacturers have very strict requirements for camera module size. Therefore, excessively increasing the coil's size would make it difficult for the overall camera module to meet these miniaturized design requirements. Summary of the Invention

[0007] One advantage of the present application is that it provides a camera module and a manufacturing method thereof, which increases the local area of ​​the coil assembly of the actuator, reduces the resistance of the coil assembly, reduces the power consumption of the actuator, and improves the quality of the camera module.

[0008] One advantage of the present application is that it provides a camera module and a manufacturing method thereof, which increases the local line width in the coil pattern unit of each turn to increase the cross-sectional area of ​​the coil assembly, thereby reducing the resistance value of the coil assembly and reducing the heat generation level of the coil assembly.

[0009] One advantage of the present application is that it provides a camera module and a manufacturing method thereof, which only increases the local line width in the coil pattern unit of each turn, avoiding the overall volume of the coil assembly being too large, and meeting the design requirements of miniaturization of the camera module.

[0010] One advantage of the present application is that it provides a camera module and a manufacturing method thereof, in which a coil pattern is printed on a substrate, and a coil pattern shape with different local line widths can be formed according to a preset coil pattern, which can effectively reduce the resistance of the coil component and improve the performance of the coil component.

[0011] One advantage of the present application is that it provides a camera module and a manufacturing method thereof, wherein the coil assembly is mounted on a printed circuit board so that the printed circuit board integrates the coil assembly.

[0012] One advantage of the present application is that it provides a camera module and a manufacturing method thereof, which improves quality by increasing the line width of the coil pattern of the part that does not affect the driving force of the actuator in each coil pattern unit to avoid affecting the driving performance of the actuator.

[0013] According to one aspect of the present application, the present application provides a camera module, including:

[0014] An optical module, a movable member, a coil assembly, and a magnet. The optical module is mounted on the movable member. One of the coil assembly and the magnet is mounted on the movable member and is located on at least one side of the optical module. The coil assembly and the magnet interact with each other to generate a driving force to drive the movable member to carry the optical module.

[0015] The magnet includes a first portion and a second portion, wherein the first portion and the second portion respectively form polarity portions with different polarities on a side facing the coil assembly;

[0016] The coil assembly includes a substrate and a coil pattern formed on the substrate, the coil pattern including a first coil pattern extending in a first direction and a second coil pattern extending in a second direction perpendicular to the first direction;

[0017] The extending direction of the first coil pattern is parallel to the arrangement direction of the first portion and the second portion, and the width of the first coil pattern is greater than the width of the second coil pattern.

[0018] According to an example of the present application, at least a portion of the first coil pattern protrudes relative to the magnet along the second direction.

[0019] According to an example of the present application, the first coil pattern faces the first portion and the second portion.

[0020] According to an example of the present application, the coil pattern includes a plurality of coil pattern units, each of the coil pattern units includes a first coil pattern unit extending along a first direction and a second coil pattern unit extending along a second direction, and a width of the first coil pattern unit is greater than a width of the second coil pattern.

[0021] According to an example of the present application, the first coil pattern unit includes a plurality of coil units connected in parallel.

[0022] According to an example of the present application, the gaps between the coil pattern units are the same, and the gaps between the first coil pattern units and the second coil pattern units are the same.

[0023] According to an example of the present application, the first coil pattern and the second coil pattern are at the same distance from the edge of the substrate.

[0024] According to an example of the present application, a printed circuit board is further included, and the coil assembly is soldered to the printed circuit board, wherein the substrate is provided with at least one soldering area for fixed connection with the printed circuit board.

[0025] According to an example of the present application, a fixed member is further included, the movable member is movably assembled to the fixed member, and the other of the coil assembly and the magnet is mounted to the fixed member.

[0026] According to an example of the present application, the optical module is an optical path turning module, the coil assembly and the magnet are installed on both sides of the optical path turning module, the extension direction of the first coil pattern is parallel to the light emitting direction of the optical path turning module, and the extension direction of the second coil pattern is parallel to the light incident direction of the optical path turning module. The magnet and the coil assembly interact to generate a driving force parallel to the light emitting direction, driving the optical path turning module to rotate around a first rotation axis, and the first rotation axis is parallel to the light incident direction.

[0027] According to an example of the present application, the movable member includes a first movable member, a second movable member and a guide member, the first movable member and the second movable member are installed on the fixed member along the second direction, and the guide member is installed between the first movable member and the second movable member to guide the movement of the first movable member, wherein the camera module also includes a second coil assembly and a second magnet, the second coil assembly and the second magnet are installed on the fixed member and the first movable member along the first direction, driving the first movable member to rotate around the second rotation axis.

[0028] According to an example of the present application, the second movable member is installed on the bottom of the first movable member along the second direction, the second movable member includes two support arms extending along the second direction and opposite to each other along the third direction, the support arms extend to the two opposite sides of the first movable member along the third direction, the guide member is assembled in the second accommodating groove defined by the top end of the support arm, and the center point of the guide member is located at the second rotation axis.

[0029] According to an example of the present application, the magnet includes a first part and a second part, there is a spacing space between the first part and the second part, the support arm is located in the spacing space, and the parts of the first part and the second part facing the coil assembly form polarity parts with opposite polarities.

[0030] According to an example of the present application, the side of the first movable member is provided with a first movable assembly space and a second movable assembly space, the first part and the second part are respectively assembled in the first movable assembly space and the second movable assembly space, a receiving portion is provided between the first movable assembly space and the second movable assembly space, the receiving portion is provided with a first sub-receiving groove and a second sub-receiving groove along the second direction, at least a part of the guide member is received in the first sub-receiving groove, and the support arm extends into the second sub-receiving groove.

[0031] According to an example of the present application, the optical module is a lens module, the coil assembly and the magnet are arranged on at least one side of the lens module, interacting with each other to generate a driving force parallel to the optical axis direction of the lens module, wherein the extension direction of the first coil pattern is parallel to the optical axis of the lens module.

[0032] According to another aspect of the present application, the present application also provides a method for manufacturing a camera module, comprising the following steps:

[0033] Providing a substrate with a coil pattern, the coil pattern including a first coil pattern extending in a first direction and a second coil pattern extending in a second direction perpendicular to the first direction, wherein a width of the first coil pattern is greater than a width of the second coil pattern;

[0034] soldering a coil assembly formed by the coil pattern and the substrate to a printed circuit board;

[0035] Mounting one of the coil assembly and the magnet to the movable member and the other to the fixed member;

[0036] The magnet includes a first part and a second part, the first part and the second part respectively form polarity portions with different polarities on one side facing the coil assembly, and the first part and the second part are arranged along the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG1A is a simplified schematic diagram of some example coil assemblies of camera modules according to the present application.

[0038] FIG1B is a schematic diagram illustrating the interaction between coil assemblies and magnets in some examples of camera modules according to the present application.

[0039] FIG1C is a schematic cross-sectional view of some example coil assemblies of camera modules according to the present application.

[0040] FIG2A is a schematic diagram of an embodiment of a coil assembly according to some examples of the camera module of the present application.

[0041] FIG2B is a schematic diagram of another embodiment of a coil assembly according to some examples of the camera module of the present application.

[0042] Figure 3A is a schematic diagram of an example of an actuator according to the present application being applied to a periscope camera module to drive an optical path turning module.

[0043] Figure 3B is a schematic diagram of the structure of an example in which the actuator according to the present application is applied to a periscope camera module to drive an optical path turning module.

[0044] FIG4A is a schematic exploded view of the partial structure of an example in which the actuator according to the present application is applied to a periscope camera module to drive an optical path turning module.

[0045] Figure 4B is a schematic diagram of the interaction between the coil assembly and the magnet in an example where the actuator according to the present application is applied to a periscope camera module to drive the optical path turning module.

[0046] Figure 5A is a simplified schematic diagram of an example of an actuator according to the present application being applied to a periscope camera module to drive a lens module.

[0047] Figure 5B is a simplified schematic diagram of a coil assembly and a magnet in an example in which the actuator according to the present application is applied to a periscope camera module to drive a lens module.

[0048] Figure 5C is a schematic diagram of the interaction between the coil assembly and the magnet in an example where the actuator according to the present application is applied to a periscope camera module to drive a lens module.

[0049] 6A and 6B are simplified schematic diagrams of the coil assembly of some examples of the camera module according to the present application being mounted on a printed circuit board.

[0050] FIG7 is a simplified schematic diagram of some example coil assemblies of the camera module according to the present application. DETAILED DESCRIPTION

[0051] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0052] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0053] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0054] The present application provides an actuator and a camera module using the actuator. The width of the local coil pattern of the actuator's coil assembly is increased to reduce the resistance of the coil assembly, reduce the function of the actuator, and improve performance. Among them, the design of increasing the width of the coil pattern is carried out locally on the coil pattern unit of each turn of the coil assembly to avoid the overall size of the coil assembly being too large, which meets the miniaturization design requirements of the camera module and can improve the quality of the camera module. Combined with the schematic diagrams of Figures 1A to 7 of the specification, the implementation method and advantages of the camera module of the present application are explained.

[0055] 1A to 1C , the actuator includes a coil assembly 10 and a magnet 20 . Magnet 20 and coil assembly 10 face each other. When current is applied to coil assembly 10 , it interacts with the magnetic field of magnet 20 to generate a driving force F. Magnet 20 and coil assembly 10 can generate a driving force in a direction perpendicular to the direction they face each other.

[0056] As shown in FIG. 1A , the coil component 10 includes a coil pattern 101 and a substrate 102 .

[0057] In one embodiment, a coil pattern 101 having conductive properties is formed on an insulating base layer of a substrate 102 according to a preset pattern.

[0058] The coil pattern 101 includes a first coil pattern 11 extending along a first direction (X axis) and a second coil pattern 12 extending along a second direction (Y axis), the first direction and the second direction being orthogonal to each other.

[0059] The current flowing into the coil assembly 10 moves along the coil pattern 101 , moves along the X-axis in the first coil pattern 11 , and moves along the Y-axis in the second coil pattern 12 .

[0060] As shown in Figure 1B , the magnet 20 and coil assembly 10 are positioned relative to each other along the third direction (Z-axis). The magnetic field direction B of the magnet 20 is perpendicular to the current direction I of the coil pattern 101. Specifically, the magnetic field direction B of the magnet 20 is perpendicular to the velocity direction of the moving charges in the coil pattern 101. Furthermore, the velocity direction of the moving charges in the second coil pattern 12 is perpendicular to the magnetic field direction B of the magnet 20. The interaction between the second coil pattern 12 and the magnet 20 generates a driving force F perpendicular to the third direction. The driving force F is perpendicular to the plane defined by the velocity direction of the moving charges in the second coil pattern 12 and the magnetic field direction B of the magnet 20.

[0061] That is, the second coil pattern 12 is a portion of the coil assembly 10 that participates in the interaction with the magnetic field of the magnet 20 to generate the driving force F. The second coil pattern 12 and the magnet 20 are arranged opposite to each other to interact with each other.

[0062] The resistance value of the coil assembly 10 affects its quality. The lower the resistance value, the higher the quality and the smaller the loss of the coil assembly loop. The resistance value of the coil assembly 10 is inversely proportional to the cross-sectional area of ​​the coil pattern 101. In order to reduce the resistance value, it is possible to consider increasing the cross-sectional area of ​​the coil pattern 101, such as increasing the width and thickness of the coil pattern 101. However, the internal space of the camera module is limited. Increasing the overall width and thickness of the coil pattern 101 may increase the overall size and affect other structures. Therefore, referring to Figure 1C, consider increasing the local cross-sectional area of ​​the coil pattern 101 to avoid the overall size of the coil assembly 10 being too large. Furthermore, if the cross-sectional area of ​​the part where the coil pattern 101 interacts with the magnet is increased, it is necessary to consider the impact of the increased area on the movement of the actuator. Therefore, consider increasing the cross-sectional area of ​​the first coil pattern 11 of the coil pattern 101. In this case, the cross-sectional direction is perpendicular to the plane determined by the first direction and the second direction.

[0063] The second coil pattern 12 faces the magnet 20, oriented toward the north and south polarity portions of the magnet 20. The current direction I flowing through the second coil pattern 12 is perpendicular to the magnetic field direction B of the magnet 20, and these interactions generate a perpendicular driving force F. The current direction I flowing through the first coil pattern 11 is parallel to the direction of the driving force F. Increasing the cross-sectional area of ​​the first coil pattern 11 has minimal impact on the actuator's driving performance.

[0064] 1B , the width W1 of the first coil pattern 11 is greater than the width W2 of the second coil pattern 11. Width W1 is the distance along the second direction between an outer side E111 and an inner side E112 of the first coil pattern 11 extending along the first direction; width W2 is the distance along the first direction between an outer side E121 and an inner side E122 of the second coil pattern 12 extending along the second direction.

[0065] When forming coil pattern 101 on substrate 102, the width of first coil pattern 11 is increased to reduce the resistance of coil assembly 10. In other words, the width of first coil pattern 11 is preset to be greater than the width of second coil assembly 12, thereby presetting coil pattern 101. As shown in FIG1C , the cross-sectional area S1 of first coil pattern 11 is affected by width W1 and thickness T1, while the cross-sectional area S2 of second coil pattern 12 is determined by width W2 and thickness T2. When width W1 > width W2 and thickness T1 = thickness T2, cross-sectional area S1 > cross-sectional area S2. Increasing width W1 of first coil pattern 11 increases cross-sectional area S1, thereby reducing resistance.

[0066] The first coil pattern 11 and the second coil pattern 12 are formed with the same thickness to facilitate printing and forming on the substrate 102. The first coil pattern 11 and the second coil pattern 12 can have a single layer or a multilayer structure in a third direction (the Z-axis) perpendicular to the first and second directions. Furthermore, increasing the thickness of the coil pattern 101 increases the cross-sectional area and reduces the resistance.

[0067] 1B , the coil pattern 101 includes two first coil patterns 11A and 11B extending in a first direction and facing each other in a second direction, and two second coil patterns 12A and 12B extending in a second direction and facing each other in the first direction.

[0068] The magnet 20 includes a first portion 201 and a second portion 202 distributed along the first direction. The first portion 201 and the second portion 202 respectively face the second coil patterns 12A and 12B arranged opposite to each other along the first direction and form polarity portions with different polarities facing the second coil patterns 12A and 12B.

[0069] The magnetic fields of first portion 201 and second portion 202 are directed in opposite directions and extend along the third direction. The currents of second coil patterns 12A and 12B are directed in opposite directions and extend along the second direction, perpendicular to the magnetic fields of first portion 201 and second portion 202. Second coil pattern 12A interacts with first portion 201, and second coil pattern 12B interacts with second portion 202 to generate a driving force F directed in the same direction as the first direction. Changing the circuit direction can change the direction of driving force F.

[0070] The extending direction of the first coil pattern 11 is parallel to the arrangement direction of the first portion 201 and the second portion 202 . The second coil pattern 12 faces a single polarity portion, and the first coil pattern 11 faces two polarity portions of the magnet 20 with different polarities.

[0071] The portions of first portion 201 and second portion 202 facing coil assembly 10 form an N-polarity portion and an S-polarity portion, respectively. First portion 201 and second portion 202 are implemented as two magnets with opposite magnetization directions, interacting with second coil patterns 12A and 12B of coil assembly 10, respectively, flowing in opposite directions of current, to generate a driving force F in the same direction.

[0072] The first portion 201 and the second portion 202 are implemented as two parts with opposite magnetization directions. They can be connected to each other or spaced apart. Furthermore, the first portion 201 and the second portion 202 can be spaced apart, or spaced apart. The size of the magnet 20 is determined by the first portion 201, the second portion 202, and the spacing between the first portion 201 and the second portion 202 along the first direction.

[0073] The projection of the magnet 20 in the third direction protrudes in the first direction relative to the projection of the coil pattern 101 in the third direction. The projection of the coil pattern 101 in the third direction protrudes in the second direction relative to the projection of the magnet 20 in the third direction.

[0074] The projection of the second coil pattern 12 along the third direction and the projection of the magnet 20 along the third direction largely overlap. Furthermore, in some examples, the projection of the second coil pattern 12 along the third direction falls within the projection of the magnet 20 along the third direction. In other words, the distance the second coil pattern 12 extends in the second direction matches the distance the magnet 20 extends in the second direction. Furthermore, the distance the second coil pattern 12 extends in the second direction does not exceed the distance the magnet 20 extends in the second direction. This allows the second coil pattern 12 to fully participate in the interaction with the magnet 20.

[0075] The projections of the second coil pattern 12A and the second coil pattern 12B along the third direction fall into the projections of the first portion 201 and the second portion 202 along the third direction, respectively.

[0076] The projection of the first coil pattern 11 along the third direction protrudes in the second direction relative to the projection of the magnet 20 along the third direction. In other words, the first coil pattern 11 partially protrudes in the second direction relative to the magnet 20. This reduces the impact of the design of the first coil pattern 11 on the actuator's driving performance.

[0077] In one embodiment, the first coil pattern 11 faces two polarity portions of the magnet 20 along the third direction. Specifically, the first coil pattern 11 faces the north polarity portion and the south polarity portion of the magnet 20. In this embodiment, the projections of the first coil pattern 11 and the magnet 20 along the third direction overlap, with the overlap occurring at the north polarity portion and the south polarity portion of the magnet 20, respectively.

[0078] In one embodiment, the first coil pattern 11 completely protrudes relative to the magnet 20 along the second direction, that is, there is no overlapping portion between the projections of the first coil pattern 11 and the magnet 20 along the third direction.

[0079] 2A and 2B , the coil pattern 101 includes N coil pattern units 1011. Each coil pattern unit 1011 is formed in a circle, that is, the coil pattern unit 1011 extends in a circle around the Z axis. Each coil pattern unit 1011 includes a first coil pattern unit 111 extending along a first direction and a second coil pattern unit 121 extending along a second direction. The first coil pattern unit 111 and the second coil pattern unit 121 are connected end to end and arranged in a circle.

[0080] Furthermore, the coil pattern 101 includes a bend 13 connecting the first coil pattern 11 and the second coil pattern 12 . Furthermore, each coil pattern unit 1011 includes a corresponding bend unit 131 to connect the first coil pattern unit 111 and the second coil pattern unit 121 .

[0081] Each coil pattern unit 1011 is electrically connected to each other. In one embodiment, after a coil pattern unit 1011 is formed, it turns at a certain angle from the bend 13 and extends inward or outward, continuing to circle around to form another coil pattern unit 1011. The remaining coil pattern units 10111 are formed in this manner, that is, the coil pattern 101 is formed in a spiral form on the substrate 102. In one embodiment, a conductive connection portion is provided on each coil pattern unit 1011.

[0082] The width W11 of the N first coil pattern units 111 and the gap G1 between each of the first coil pattern units 111 form the total width W1 of the first coil pattern 11 .

[0083] The width W21 of the N second coil pattern units 121 and the gap G2 between each of the second coil pattern units 121 form the total width W2 of the second coil pattern 12 .

[0084] In the example shown in FIG. 2A , the width W11 of the first coil pattern unit 111 of each coil pattern unit 1011 is greater than the width W21 of the second coil pattern unit 121 , so as to reduce the resistance of each coil pattern unit 1011 and thereby reduce the resistance of the coil pattern 101 .

[0085] That is, the width of each coil pattern unit 1011 that does not participate in the interaction with the magnetic field to generate the driving force F is increased to increase the cross-sectional area of ​​the coil pattern 101, reduce the resistance value, and avoid affecting the driving force of the actuator.

[0086] Furthermore, the gap G between each coil pattern unit 1011 is uniform. Each coil pattern unit 1011 is evenly spaced to form the coil pattern 101. The gap G1 between adjacent first coil pattern units 111 is the same, and the gap G2 between adjacent second coil pattern units 121 is the same, with G = G1 = G2. The uniform gaps in the coil pattern 101 simplify the design and reduce the difficulty of forming it on the substrate 102.

[0087] In the example shown in FIG2B , the first coil pattern unit 111 of each coil pattern unit 1011 includes a plurality of first coil units 1111 connected in parallel, and the second coil pattern unit 121 includes a second coil unit 1211 . The width W11 of the first coil pattern unit 111 formed by the plurality of first coil units 1111 connected in parallel is greater than the width W21 of the second coil pattern unit 121 of the same coil pattern unit 1011 .

[0088] That is, parallel coil units are added to the portion of each coil pattern unit 1011 that does not interact with the magnetic field to generate the driving force F, forming a parallel circuit to reduce the resistance value. This causes the width W1 of the first coil pattern 11 formed by adding the parallel first coil units 1111 to be greater than the width W2 of the second coil pattern 12.

[0089] Furthermore, the width of the second coil unit 1211 is equal to the width W21 of the second coil pattern unit 121. The width W111 of the first coil unit 1111 is the same as the width W21 of the second coil unit 1211. The gap G11 between each first coil unit 1111 is the same as the gap G1 between each first coil pattern unit, and the same as the gap G2 between each second coil pattern unit 121. In other words, the coil pattern 101 has uniform spacing, simplifying the design. On this basis, local parallel circuits are added to effectively reduce resistance.

[0090] Alternatively, the second coil pattern unit 121 includes a plurality of second coil units 1211, the number of which is less than the number of parallel-connected first coil units 1111. The width formed by the plurality of second coil units 1211 connected in parallel is the width W21 of the second coil pattern unit 121. The width of a single second coil unit 1211 is the same as the width of a single first coil unit 1111, and the width W11 of the first coil pattern unit 111 is greater than the width W21 of the second coil pattern unit 121 of the same coil pattern unit 1011. The resulting width W1 of the first coil pattern 11 is greater than the width W2 of the second coil pattern 12.

[0091] FIG3B is a schematic diagram of an embodiment of the actuator of the present application. The actuator includes a coil assembly 10, a magnet 20, a movable member 30, a fixed member 40, and an optical module. One of the coil assembly 10 and the magnet 20 is assembled to the movable member 30, and the other is assembled to the fixed member 40. The two interact to generate a driving force F to drive the movable member 30 to move relative to the fixed member 40. The optical module is mounted on the movable member 30 and moves with the movement of the movable member 30. The optical module can be implemented as, but not limited to, a lens module, an optical path deflection module, a photosensitive chip, etc.

[0092] If the coil assembly 10 is installed on the movable component 30 and the magnet 20 is installed on the fixed component 40, the actuator is a moving coil type. If the coil assembly 10 is installed on the fixed component 40 and the magnet is installed on the movable component 30, the actuator is a moving magnet type. This application does not impose any restrictions on this.

[0093] The movable member 30 is provided with a first assembly space 301 suitable for assembling one of the coil assembly 10 and the magnet 20. The fixed member 40 is provided with a second assembly space 401 suitable for assembling the other of the coil assembly 10 and the magnet 20. The first assembly space 301 and the second assembly space 401 are opposite each other along a third direction. After the coil assembly 10 and the magnet 20 are assembled, a driving force in the first direction is generated. The second coil pattern 12 of the coil pattern 101 interacts with the magnet 20 to generate the driving force. The first coil pattern 11 does not participate in the interaction with the magnet 20 and has a greater line width than the second coil pattern 12, which can effectively reduce the resistance and improve the quality of the actuator of this application.

[0094] The actuator of the present application is applied to a camera module and can drive the movement of the optical module of the camera module. For example, the actuator drives the movement of the optical module to achieve optical image stabilization (OIS), auto focus (AF), optical zoom, etc., wherein the optical module can be a lens module, an optical path turning module, and / or a photosensitive module. Specifically, taking a periscope camera module as an example, the application of the actuator of the present application in a camera module is explained.

[0095] Referring to the schematic diagrams of Figures 3A to 4B, the actuator of the present application is applied as a moving device for the optical path deflection module of a periscope camera module. The actuator includes a coil assembly 10, a magnet 20, a movable member 30, and a fixed member 40. For example, the coil assembly 10 is mounted on the fixed member 40, and the magnet 20 is mounted on the movable member 30. In other examples of the present application, an embodiment in which the coil assembly 10 is mounted on the movable member 30 and the magnet 30 is mounted on the fixed member 40 is also feasible.

[0096] The actuator also includes an actuated optical module, which in this example is implemented as an optical path deflection module 50. The optical path deflection module 50 is mounted on the movable member 30. The coil assembly 10 and the magnet 20 interact to generate a driving force F, so that the movable member 30 carries the optical path deflection module 50 to move.

[0097] The movable member 30 includes a first movable member 31, a second movable member 32, and a guide member 33. The first movable member 31 and the second movable member 32 are movably mounted on the fixed member 40. The optical path deflection module 50 is mounted on the first movable member 31, the second movable member 32 is mounted between the first movable member 31 and the fixed member 40, and the guide member 33 is mounted between the first movable member 31 and the second movable member 32 to guide the movement of the first movable member 31. The first movable member 31, the guide member 33, and the second movable member 32 are assembled to the fixed member 40 along the second direction.

[0098] Light enters the optical path deflection module 50 along the second direction (the Y axis), is deflected by the module, and then exits along the first direction (the X axis). A lens module and a photosensitive module (not shown) are sequentially arranged along the first direction on the exit side of the optical path deflection module 50. Light passes through the lens module and reaches the photosensitive module, where it forms an image on the photosensitive area of ​​the photosensitive module.

[0099] The actuator includes a first actuator and a second actuator. The first actuator drives the optical path deflection module 50 to rotate about a first rotation axis R1, while the second actuator drives the optical path deflection module 50 to rotate about a second rotation axis R2. The first rotation axis R1 and the second rotation axis R2 are orthogonal. The first rotation axis R1 extends along the Y-axis, that is, parallel to the light incident direction, while the second rotation axis R2 extends along the Z-axis, that is, orthogonal to the light incident and light exit directions.

[0100] As shown in Figure 3B, the second actuator includes a second coil assembly 10A and a second magnet 20A. The second coil assembly 10A and the second magnet 20A are relatively installed on the movable component 30 and the fixed component 40 along the X-axis direction, and interact with each other to drive the optical path turning module 50 to rotate around the second rotation axis R2.

[0101] It is understandable that the implementation of the second coil assembly 10A may refer to the implementation of the coil assembly 10 and adopt a design with different line widths, or may adopt a design with the same line width or a conventional design.

[0102] In which, the number of guide members 33 is implemented as two, which are relatively distributed along the Z-axis direction and are located between the first movable member 31 and the second movable member 32. As shown in Figure 4A, the second movable member 32 is assembled between the bottom of the first movable member 31 and the bottom of the fixed member 40 along the Y-axis direction, supporting the first movable member 31 along the Y-axis direction. The second movable member 32 includes two support arms 321 that are relatively distributed along the Z-axis direction and extend along the Y-axis direction. The two guide members 33 are respectively installed in the second receiving grooves 320 defined by the tops of the two support arms 321. The bottom of the first movable member 31 is correspondingly provided with first receiving grooves 310 that are relatively distributed along the Z-axis direction, suitable for accommodating at least a portion of the guide members 33 and the support arms 321. The first receiving groove 310 and the second receiving groove 320 cooperate with each other to define the movable space of the guide member 33. When the second coil assembly 10A and the second magnet 20A of the second actuator interact with each other to drive the first movable member 31 to move, the guide member 33 guides the first movable member 21 to rotate around the second rotation axis R2, thereby achieving the nodding movement of the optical path deflection module 50.

[0103] The first actuator includes the aforementioned coil assembly 10 and magnet 20, which are arranged relative to each other along the Z-axis on the two sides of the movable member 30 and the fixed member 40. Specifically, the fixed member 40 is provided with a second assembly space 401 on both sides along the Z-axis, and the movable member 30 is provided with a first assembly space 301 on both sides of the movable member 30 that are opposite to each other along the Z-axis. At least two coil assemblies 10 are mounted relative to each other on both sides of the fixed member 40 along the Z-axis, and at least two magnets 20 are mounted relative to each other on both sides of the movable member along the Z-axis.

[0104] The coil assembly 10 includes a coil pattern 101 and a substrate 102. The substrate 102 is distributed at least on two opposite sides of the movable member 30 along the Z-axis direction to form the coil patterns 101 that are opposite to each other along the Z-axis direction.

[0105] The coil assembly 10 and the magnet 20 distributed on one side of the movable member 30 along the Z-axis direction will be described in detail. The coil assembly 10 and the magnet 20 distributed on the other side of the movable member 30 along the Z-axis direction are implemented in the same manner.

[0106] The coil pattern 101 includes a first coil pattern 11 and a second coil pattern 12. The first coil pattern 11 is arranged along a first direction, perpendicular to the light incident direction of the optical path turning module 50 and parallel to the light exit direction of the optical path turning module 50. The second coil pattern 12 is arranged along a second direction, parallel to the light incident direction of the optical path turning module 50 and perpendicular to the light exit direction of the optical path turning module 50. The width W1 of the first coil pattern 11 is greater than the width W2 of the second coil pattern 12. The magnet 20 is arranged in a direction parallel to the plane defined by the light incident and light exit directions of the optical path turning module 50. The magnet 20 and the coil assembly 10 are arranged in a direction perpendicular to the plane defined by the light incident and light exit directions of the optical path turning module 50.

[0107] 4A and 4B , magnet 20 includes a first portion 201 and a second portion 202. In this example, first portion 201 and second portion 202 are independent magnets, with a space 200 separating them. The portions of first portion 201 and second portion 202 facing coil assembly 10 have different polarities, such as forming an N-polarity portion and an S-polarity portion, respectively. The portions of first portion 201 and second portion 202 facing away from coil assembly 10 have different polarities, such as forming an S-polarity portion and an N-polarity portion, respectively.

[0108] The first portion 201 and the second portion 202 have opposite magnetization directions and are distributed along a third direction perpendicular to the extension direction of the coil pattern 101 , and perpendicular to the current direction of the coil pattern 101 .

[0109] Coil pattern 101 includes second coil patterns 12A and 12B, which face first portion 201 and second portion 202, respectively. Second coil patterns 12A and 12B each face one polarity portion. Coil pattern 101 also includes first coil patterns 11A and 11B, which face first portion 201 and second portion 202, respectively, and face two polarity portions of magnet 20 with different polarities.

[0110] The first portion 201 and the second portion 202 each have a length extending along the Y-axis. The second coil patterns 12A and 12B each have a length extending along the Y-axis. The first coil patterns 11A and 11B each have a length extending along the X-axis. The first portion 201, the second portion 202, and the second coil patterns 12A and 12B extend parallel to the direction of light incident on the optical path deflection module 50. The first coil patterns 11A and 11B extend parallel to the direction of light exiting the optical path deflection module 50.

[0111] When a current in one direction is passed through the coil pattern 101, the current flows along the first coil pattern 11A, the second coil pattern 12B, the first coil pattern 11B and the second coil pattern 12A. The current directions of the second coil patterns 12A and 12B are opposite, and are perpendicular to the magnetic field directions of the first part 201 and the magnetic field directions of the second part 202, respectively. The current interacts with each other to generate a driving force F.

[0112] The driving force F is parallel to the extending direction of the first coil patterns 11A and 11B and the current direction.

[0113] Currents in opposite directions are passed through the coil assemblies 10 distributed on opposite sides of the movable component 30 along the Z-axis direction to generate driving forces in opposite directions, thereby driving the movable component 30 to rotate around the first rotation axis R1, causing the optical path turning module 50 to rotate around the first rotation axis R1, thereby realizing the swinging motion of the optical path turning module 50.

[0114] A second guiding member (not shown) is disposed between the second movable member 32 and the fixed member 40 . The second guiding member guides the second movable member 32 to rotate about the first rotation axis R1 , so that the first movable member 31 carrying the optical path deflection module 50 rotates about the first rotation axis R1 .

[0115] The fixing member 40 is mounted on a base 60 , which may serve as a housing and / or a base.

[0116] 4A , a space 200 is defined between the first portion 201 and the second portion 202. The movable member 30 is configured to have a first assembly space 301 for assembling the magnet 20. The first assembly space 301 is divided into a first movable assembly space 3011 and a second movable assembly space 3012, which are spaced apart from each other. The first movable assembly space 3011 and the second movable assembly space 3012 are spaced apart from each other along the X-axis and are formed on opposite sides of the first movable member 31 along the Z-axis.

[0117] The space between the first movable assembly space 3011 and the second movable assembly space 3012 is defined as the receiving portion 311. Specifically, the space 200 between the first portion 210 and the second portion 202 is filled by the receiving portion 311. The receiving portion 311 protrudes outward from the inner wall defining the first movable assembly space 3011 and the second movable assembly space 3012. A first receiving groove 310 extends upward along the Y-axis from the bottom of the receiving portion 311. Furthermore, a second sub-receiving groove 3102 and a first sub-receiving groove 3101 are further extended upward along the Y-axis.

[0118] The second movable member 32 is assembled along the Y-axis at the bottom of the first movable member 31. The support arm 321 is located in the second sub-receiving groove 3102. The second receiving groove 320 and the first sub-receiving groove 3101 defined by the top of the support arm 321 cooperate to define the receiving space for the guide member. The guide member 33 guides the movement of the first movable member 31.

[0119] Therefore, the guide member 33 is positioned between the first portion 201 and the second portion 202 of the magnet 20, forming a pivot point for the movement of the first movable member 31. Furthermore, at least two guide members 33 are positioned opposite each other along the Z-axis, one between the first portion 201 and the second portion 202 of each magnet 20 located on either side of the movable member 30. The center points of the guide members 33 are positioned on the second rotation axis R2. A line connecting the center points of the at least two guide members 33 coincides with the second rotation axis R2, and the second rotation axis R2 extends through the space 200 between the first portion 201 and the second portion 202.

[0120] Furthermore, in some examples, the extension direction of the second rotation axis R2 passes through the center point C of the spacing space 1010 of the coil pattern 101, so that the optical deflection module 50 is subjected to uniform force and moves more stably and accurately.

[0121] First coil patterns 11A and 11B extend in a first direction perpendicular to the direction of incident light. Space 200 is located between first portion 201 and second portion 202 in the first direction. First coil patterns 11A and 11B face first portion 201, space 200, and second portion 202 in a third direction. Widths W1A and W1B of first coil patterns 11A and 11B are greater than widths W2A and W2B of second coil patterns 12A and 12B, effectively reducing the electrical resistance of coil pattern 101.

[0122] Furthermore, the widths W2A and W2B of the second coil patterns 12A and 12B are the same, and the widths W1A and W1B of the first coil patterns 11A and 11B can be the same or different, as long as either one of them is larger than W2A and W2B.

[0123] In other examples of the present application, the first portion 201 and the second portion 202 of the magnet 20 are distributed with smaller or no spacing to reduce the space occupied by the magnet 20 . Correspondingly, the spacing between the second coil patterns 12A and 12B is smaller to reduce the volume of the coil assembly 10 .

[0124] The above example shows that the coil assembly 10 with a widened design of the present application is implemented as an OIS coil assembly with a swinging motion of the optical path turning module 50. In other examples of the present application, the coil assembly 10 with a widened design is implemented as an OIS coil assembly at the bottom or rear of the optical path turning module 50.

[0125] 5A to 5C , there is shown an example of the coil assembly 10 and the magnet 20 of the present application being applied to the lens module actuator of a periscope camera module. In this example, the movable member 30A is implemented as a lens carrier, the optical module is implemented as a lens module 50A, and the movable member 30A carries the lens module 50A to move along its optical axis. The fixed member 40A is implemented as the base of the periscope camera module. Light emitted from the optical path turning module along the first direction (X axis) reaches the photosensitive module through the lens module 50A. At least one side of the two opposite sides of the movable member 30A along the third direction (Z axis) is provided with a first assembly space 301A, and at least one side of the two opposite sides of the fixed member 40A along the third direction is provided with a second assembly space 401A, which is opposite to the first assembly space 301A along the third direction. One of the coil assembly 10 and the magnet 20 is assembled in the first assembly space 301A, and the other is assembled in the second assembly space 401A to interact with each other to drive the lens carrier carrying the lens module 50A to move along the first direction and adjust the focus to achieve AF function or optical zoom, etc.

[0126] The coil assembly 10 and the magnet 20 may be mounted on opposite sides of the movable member 30A and the fixed member 40A, respectively, or may be mounted on one side.

[0127] The first coil pattern 11 of the coil pattern 101 extends and is distributed along a direction parallel to the optical axis of the lens module 50A (the first direction, the X axis), and the second coil pattern 12 extends and is distributed along a direction perpendicular to the optical axis of the lens module 50A (the second direction, the Y axis). The second coil pattern 12 and the magnet 20 are opposite to each other in another direction perpendicular to the optical axis of the lens module 50A or in a direction perpendicular to the coil pattern 101 (the third direction, the Z axis), and interact with each other to generate a force along the optical axis direction of the lens module 50A, driving the movable component 30 to carry the lens module 50A to move along the optical axis of the lens module 50A.

[0128] The width W1 of the first coil pattern 11 is greater than the width W2 of the second coil pattern 11 , which reduces the resistance of the first coil pattern 11 and further reduces the resistance of the coil assembly 10 , thereby improving its quality and reducing loss.

[0129] The above example shows an example in which the actuator is applied to a periscope camera module. In other examples of the present application, the actuator of the present application can be applied to an upright camera module, and the optical module can be implemented as an optical lens or a photosensitive chip of the upright camera module. The coil assembly 10 and the magnet 20 interact with each other to drive the optical lens to move in a plane perpendicular to its optical axis to realize lens motion OIS, or drive the photosensitive chip to move in a plane perpendicular to its optical axis to realize chip motion OIS.

[0130] The coil assembly 10 of the actuator provided in this application is widened in design, which does not affect the total length, number of turns, etc. of the coil assembly 10. Instead, it only widens the part of the coil pattern 101. On the basis of the original design, the cross-sectional area of ​​the part of the coil pattern 101 is increased, while reducing the resistance, avoiding excessively increasing the volume of the coil assembly 10. The implementation method and degree of widening of the widening design can be determined according to design requirements. Furthermore, the first coil pattern unit 111 of each circle of the coil pattern 101 is designed with a wider width or a parallel circuit design, so that the resistance of the coil pattern unit of each circle can be reduced, thereby improving the quality of the coil assembly 10.

[0131] 6A and 6B , the coil assembly 10 of the present application is mounted on a printed circuit board 100. Preferably, the substrate 102 is provided with a welding area 1021, located at or near an edge of the substrate 102. The welding area 1021 is soldered to the printed circuit board 100, thereby achieving a fixed and conductive connection between the coil assembly 10 and the printed circuit board 100. Furthermore, the positive and negative electrodes of the coil pattern 101 are conductively connected to the printed circuit board 100, allowing the coil pattern 101 to draw current through the printed circuit board 100.

[0132] In one embodiment, the printed circuit board 100 is implemented as a flexible printed circuit board. In other embodiments, it can also be implemented as a rigid board, a rigid-flex board, etc.

[0133] In combination with the examples of Figures 3A to 4B, the printed circuit board 100 shown in Figure 6A can be installed to the periscope camera module and applied as the main board of the periscope camera module, or an anti-shake circuit board. The printed circuit board 100 is installed on the fixed component 40 around the movable component 30, and the coil assembly 10 is installed on the surface of the printed circuit board 100 facing both sides of the movable component 30 in the third direction, so that the coil assembly 10 is distributed on both sides of the movable component 30, and the second coil assembly 10A is installed on the surface facing one side of the movable component 30 in the first direction, so that the second coil assembly 10A is distributed on one side of the movable component 30.

[0134] In conjunction with the examples of Figures 5A to 5C, the printed circuit board 100 shown in Figures 6A and 6B can be mounted to a periscope camera module and applied as the main board of the periscope camera module or the focus adjustment circuit board. The coil assembly 10 is mounted on the surface of the printed circuit board 100 facing the lens module 50A or on two opposite sides.

[0135] In combination with the examples of Figures 3A to 5C and referring to Figure 6B, the printed circuit board 100 can be integrally extended from the outside of the optical path turning module 50 to the outside of the lens module 50A, or in other words, the periscope camera module includes an integrally extended printed circuit board 100, and the coil assembly 10 is mounted on the surface facing the optical path turning module 50 and the lens module 50A.

[0136] Furthermore, as shown in FIG7 , the outermost edges of the coil pattern 101 are positioned at the same distance from the edge of the substrate 102. Specifically, the outermost edge of the first coil pattern 11 is edge E111, the edge of the substrate 102 extending along the first direction is edge E21, and the distance between edge E111 and edge E21 is D1. The outermost edge of the second coil pattern 12 is edge 121, the edge of the substrate 102 extending along the second direction is edge E22, and the distance between edge E121 and edge E22 is D2, where D1 = D2. In other words, the distance from the edge of the first coil pattern 11 to the edge of the substrate 102 is the same as the distance from the edge of the second coil pattern 12 to the edge of the substrate 102.

[0137] The coil pattern 101 has an inner space 1010, and the distance between the innermost edges E112 of the first coil patterns 11 on both sides defines the distance of the inner space 1010 along the second direction. The distance between the innermost edges E122 of the second coil patterns 12 on both sides defines the distance of the inner space 1010 along the first direction.

[0138] When the first coil pattern 11 is widened, it is widened in a direction opposite to the innermost side E112 , that is, the first coil pattern 11 is widened outward to avoid affecting the size of the inner space 1010 .

[0139] In some examples, the actuator of the present application further includes a position sensor 70 for detecting position changes so that the actuator can perform corresponding adjustment movements to achieve anti-shake, focus, zoom, etc. Referring to FIG5B , the position sensor 70 is disposed within the inner compartment 1010 to avoid occupying additional space and improve space utilization.

[0140] According to another aspect of the present application, in conjunction with the examples of FIG. 1A to FIG. 7 , the present application also provides a method for manufacturing a camera module, comprising the following steps:

[0141] A coil pattern 101 is formed on a substrate 102. The coil pattern 101 includes a first coil pattern 11 extending in a first direction and a second coil pattern 12 extending in a second direction perpendicular to the first direction. The width of the first coil pattern 11 is greater than the width of the second coil pattern 12.

[0142] Soldering the coil assembly 10 formed by the coil pattern 101 and the substrate 102 to the printed circuit board 100;

[0143] One of the coil assembly 10 and the magnet 20 is mounted to the movable member 30 , and the other is mounted to the fixed member 40 ;

[0144] The magnet 20 includes a first portion 201 and a second portion 202 . The first portion 201 and the second portion 202 respectively form polarity portions with different polarities on one side facing the coil assembly. The first portion 201 and the second portion 202 are arranged along a first direction.

[0145] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A camera module, characterized in that: include: An optical module, a movable member, a coil assembly and a magnet, wherein the optical module is mounted on the movable member, and one of the coil assembly and the magnet is mounted on the movable member and is located on at least one side of the optical module, and the coil assembly and the magnet interact with each other to generate a driving force to drive the movable member to carry the optical module to move; The magnet comprises a first part and a second part, wherein the first part and the second part respectively form polarity parts with different polarities on a side facing the coil assembly; The coil component includes a substrate and a coil pattern formed on the substrate, the coil pattern including a first coil pattern extending in a first direction and a second coil pattern extending in a second direction perpendicular to the first direction; The extending direction of the first coil pattern is parallel to the arrangement direction of the first portion and the second portion, and the width of the first coil pattern is greater than the width of the second coil pattern.

2. The camera module according to claim 1, characterized in that: At least a portion of the first coil pattern protrudes relative to the magnet along the second direction.

3. The camera module according to claim 2, characterized in that: The first coil pattern faces the first portion and the second portion.

4. The camera module according to claim 1, characterized in that: The coil pattern includes a plurality of coil pattern units, each of the coil pattern units includes a first coil pattern unit extending in a first direction and a second coil pattern unit extending in a second direction, and a width of the first coil pattern unit is greater than a width of the second coil pattern unit.

5. The camera module according to claim 4, characterized in that: The first coil pattern unit includes a plurality of coil units connected in parallel.

6. The camera module according to claim 4, characterized in that: The gaps between the coil pattern units are the same, and the gaps between the first coil pattern units and the second coil pattern units are the same.

7. The camera module according to claim 1, characterized in that: The first coil pattern and the second coil pattern have the same distance from an edge of the substrate.

8. The camera module according to any one of claims 1 to 7, characterized in that: It also includes a printed circuit board, and the coil assembly is welded to the printed circuit board, wherein the substrate is provided with at least one welding area for fixed connection with the printed circuit board.

9. The camera module according to claim 8, characterized in that: The invention further includes a fixed member to which the movable member is movably mounted, and to which the other of the coil assembly and the magnet is mounted.

10. The camera module according to claim 9, characterized in that: The optical module is an optical path turning module, the coil assembly and the magnet are installed on both sides of the optical path turning module, the extension direction of the first coil pattern is parallel to the light emitting direction of the optical path turning module, and the extension direction of the second coil pattern is parallel to the light incident direction of the optical path turning module, the magnet and the coil assembly interact with each other to generate a driving force parallel to the light emitting direction, driving the optical path turning module to rotate around a first rotation axis, and the first rotation axis is parallel to the light incident direction.

11. The camera module according to claim 10, characterized in that: The movable component includes a first movable component, a second movable component and a guiding component, the first movable component and the second movable component are installed on the fixed component along the second direction, and the guiding component is installed between the first movable component and the second movable component to guide the movement of the first movable component, wherein the camera module also includes a second coil assembly and a second magnet, the second coil assembly and the second magnet are installed on the fixed component and the first movable component along the first direction to drive the first movable component to rotate around the second rotation axis.

12. The camera module according to claim 11, characterized in that: The second movable member is installed on the bottom of the first movable member along the second direction, and the second movable member includes two support arms extending along the second direction and opposite to each other along the third direction, and the support arms extend to two side portions of the first movable member opposite to each other along the third direction, and the guide member is assembled in the second accommodating groove defined by the top end of the support arm, and the center point of the guide member is located at the second rotation axis.

13. The camera module according to claim 12, characterized in that: The magnet includes a first part and a second part, a space is defined between the first part and the second part, the support arm is located in the space, and portions of the first part and the second part facing the coil assembly form polarity portions with opposite polarities.

14. The camera module according to claim 13, characterized in that: The side portion of the first movable member is provided with a first movable assembly space and a second movable assembly space, the first part and the second part are respectively assembled in the first movable assembly space and the second movable assembly space, a receiving portion is provided between the first movable assembly space and the second movable assembly space, the receiving portion is provided with a first sub-receiving groove and a second sub-receiving groove along the second direction, at least a portion of the guide member is received in the first sub-receiving groove, and the support arm extends into the second sub-receiving groove.

15. The camera module according to claim 9, characterized in that: The optical module is a lens module, the coil assembly and the magnet are arranged on at least one side of the lens module, interacting with each other to generate a driving force parallel to the optical axis direction of the lens module, wherein the extension direction of the first coil pattern is parallel to the optical axis of the lens module.

16. A method for manufacturing a camera module, characterized in that: The following steps are involved: Providing a substrate with a coil pattern, the coil pattern comprising a first coil pattern extending in a first direction and a second coil pattern extending in a second direction perpendicular to the first direction, the width of the first coil pattern being greater than the width of the second coil pattern; soldering a coil assembly formed by the coil pattern and the substrate to a printed circuit board; Mounting one of the coil assembly and the magnet to the movable member and the other to the fixed member; The magnet includes a first part and a second part, the first part and the second part respectively form polarity parts with different polarities on one side facing the coil component, and the first part and the second part are arranged along the first direction.

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