Camera module and method of manufacturing the same

Abstract

The application provides a camera module and a manufacturing method thereof. The camera module comprises an optical module, a movable component, a coil assembly and a magnet. The optical module is mounted on the movable component. One of the coil assembly and the magnet is mounted on the movable component and located on at least one side of the optical module. The coil assembly and the magnet interact to generate a driving force to drive the movable component to move the optical module. The magnet comprises a first part and a second part. The first part and the second part respectively form polarity parts with different polarities on a side facing the coil assembly. The coil assembly comprises a substrate and a coil pattern formed on the substrate. The coil pattern comprises a first coil pattern extending along a first direction and a second coil pattern extending along a second direction perpendicular to the first direction. The extension direction of the first coil pattern is parallel to the arrangement direction of the first part and the second part. The width of the first coil pattern is greater than the width of the second coil pattern.

Description

Technical Field

[0001] This application relates to the field of camera modules, and more specifically to camera modules and methods of manufacturing them. Background Technology

[0002] Camera modules are an essential component of mobile electronic devices. With the further development of camera module technology, users' needs for camera modules are becoming increasingly refined and demanding. The development of camera products not only needs to meet the requirements of high performance, but also miniaturization and portability.

[0003] The camera module includes a lens module, a motor, and a photosensitive module. Light passes through the lens module to the photosensitive component, where it is received by the photosensitive chip. The motor drives the lens module or photosensitive module and other optical modules.

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

[0005] Currently, the voice coil motors used in camera modules are mainly designed with uniform width wiring. The coil has the same line width at any position, and the coil traces usually have uniform width, thickness and spacing. This simplifies the coil design, but it 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 changing the line width in a spiral configuration, can increase the coil's cross-sectional area. However, this method would significantly increase the coil's size. Currently, the miniaturization requirements for camera modules are increasingly stringent, and the space they occupy within electronic devices is very limited. Terminal manufacturers have very strict size requirements for camera modules. Therefore, excessively increasing the coil size would make it difficult for the overall size of the camera module to meet the miniaturization design requirements. Summary of the Invention

[0007] One advantage of this application is that it provides a camera module and a method for manufacturing the same, which reduces the resistance of the coil assembly and the power consumption of the actuator by increasing the local area of ​​the coil assembly of the actuator, thereby improving the quality of the camera module.

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

[0009] One advantage of this application is that it provides a camera module and a method for manufacturing the same, which only increases the local linewidth in each coil pattern unit, thus avoiding an excessively large overall size of the coil assembly and meeting the design requirements for miniaturization of the camera module.

[0010] One advantage of this application is that it provides a camera module and a method for manufacturing the same, which prints coil patterns on a substrate and can form coil pattern shapes with different local line widths according to a preset coil pattern, thereby effectively reducing the resistance of the coil assembly and improving the performance of the coil assembly.

[0011] One advantage of this application is that it provides a camera module and a method for manufacturing the same, in which a coil assembly is mounted onto a printed circuit board, thereby integrating the coil assembly onto the printed circuit board.

[0012] One advantage of this application is that it provides a camera module and a method for manufacturing the same, which improves quality by increasing the linewidth of the coil pattern in the portion of the coil pattern unit that does not affect the actuator's driving force, thereby avoiding any impact on the actuator's driving performance.

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

[0014] An optical module, a movable component, a coil assembly, and a magnet are provided. The optical module is mounted on the movable component, and one of the coil assembly and the magnet is mounted on the movable component at at least one side of the optical module. The coil assembly and the magnet interact to generate a driving force that drives the movable component to carry the optical module in motion.

[0015] The magnet includes a first part and a second part, wherein the first part and the second part respectively form polarity portions with different polarities on the 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 along a first direction and a second coil pattern extending along a second direction perpendicular to the first direction;

[0017] Wherein, the extension direction of the first coil pattern is parallel to the arrangement direction of the first part and the second part, and the width of the first coil pattern is greater than the width of the second coil pattern.

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

[0019] According to one example of this application, the first coil pattern is oriented toward the first portion and the second portion.

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

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

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

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

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

[0025] According to one example of this application, a fixed member is also included, the movable member being movably mounted to the fixed member, and the other of the coil assembly and the magnet being mounted to the fixed member.

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

[0027] According to one example of this application, the movable component includes a first movable component, a second movable component, and a guide component. The first movable component and the second movable component are mounted on the fixed component along a second direction. The guide component is mounted between the first movable component and the second movable component to guide the movement of the first movable component. The camera module further includes a second coil assembly and a second magnet. The second coil assembly and the second magnet are mounted on the fixed component and the first movable component along the first direction to drive the first movable component to rotate around a second rotation axis.

[0028] According to one example of this application, the second movable member is mounted 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 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 fitted into a second receiving groove defined at the top of the support arms. The center point of the guide member is located at the second rotation axis.

[0029] According to one example of this application, the magnet includes a first portion and a second portion, with a space between the first portion and the second portion, the support arm being located in the space, and the portions of the first portion and the second portion facing the coil assembly forming polarity portions with opposite polarities.

[0030] According to an example of this 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 part is provided between the first movable assembly space and the second movable assembly space, the receiving part 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 into the first sub-receiving groove, and the support arm extends into the second sub-receiving groove.

[0031] According to one example of this application, the optical module is a lens module, and the coil assembly and the magnet are disposed on at least one side of the lens module, interacting to generate a driving force parallel to the optical axis 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 this application, this application also provides a method for manufacturing a camera module, comprising the following steps:

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

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

[0035] One of the coil assembly and the magnet is mounted to the movable component, and the other is mounted to the fixed component;

[0036] The magnet includes a first part and a second part, wherein 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. Attached Figure Description

[0037] Figure 1A This is a simplified schematic diagram of a coil assembly as an example of a camera module according to this application.

[0038] Figure 1B A schematic diagram illustrating the interaction between a coil assembly and a magnet, based on some examples of camera modules according to this application.

[0039] Figure 1C This is a cross-sectional schematic diagram of a coil assembly of some examples of a camera module according to this application.

[0040] Figure 2A This is a schematic diagram of one embodiment of a coil assembly of some examples of a camera module according to this application.

[0041] Figure 2B This is a schematic diagram of another embodiment of the coil assembly of some examples of the camera module according to this application.

[0042] Figure 3A This is a schematic diagram illustrating an example of the actuator according to this application being applied to a periscope camera module driving an optical path reversal module.

[0043] Figure 3B This is a schematic diagram of an example structure of an actuator according to this application applied to a periscope camera module driving an optical path reversal module.

[0044] Figure 4A This is a partial exploded view of an example of an actuator according to this application being applied to a periscope camera module driving an optical path reversal module.

[0045] Figure 4B This is a schematic diagram of the interaction between a coil assembly and a magnet in an example of an actuator according to this application being applied to a periscope camera module driving an optical path reversal module.

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

[0047] Figure 5B This is a simplified schematic diagram of a coil assembly and a magnet, illustrating an example of an actuator according to this application being applied to a periscope camera module driving a lens module.

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

[0049] Figure 6A and Figure 6B This is a simplified schematic diagram of a coil assembly mounted on a printed circuit board, representing some examples of camera modules according to this application.

[0050] Figure 7 This is a simplified schematic diagram of a coil assembly as an example of a camera module according to this application. Detailed Implementation

[0051] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0052] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

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

[0054] This application provides an actuator and a camera module using the actuator. The width of a local coil pattern in the actuator's coil assembly is increased to reduce the coil assembly's resistance, reduce the actuator's workload, and improve performance. Specifically, the design of increasing the width of the coil pattern in a localized area of ​​each turn of the coil assembly avoids making the overall size of the coil assembly too large, meeting the miniaturization design requirements of the camera module and improving the quality of the camera module. (See attached specification.) Figures 1A to 7 The illustration illustrates the implementation method and advantages of the camera module of this application.

[0055] Reference Figures 1A to 1C The actuator includes a coil assembly 10 and a magnet 20, which are positioned opposite each other. When an electric current is passed through the coil assembly 10, it interacts with the magnetic field of the magnet 20 to generate a driving force F. The magnet 20 and the coil assembly 10 can generate a driving force in a direction perpendicular to each other.

[0056] like Figure 1A As shown, the coil assembly 10 includes a coil pattern 101 and a substrate 102.

[0057] In one embodiment, a coil pattern 101 with conductive properties is formed on the insulating base layer of the 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.

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

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

[0061] In other words, the second coil pattern 12 is the part of the coil assembly 10 that interacts with the magnetic field of the magnet 20 to generate the driving force F. The second coil pattern 12 and the magnetic field 20 are arranged opposite to each other to interact.

[0062] The resistance of coil assembly 10 affects its quality; the lower the resistance, the higher the quality and the lower the loss in the coil assembly circuit. The resistance of coil assembly 10 is inversely proportional to the cross-sectional area of ​​coil pattern 101. To reduce the resistance, the cross-sectional area of ​​coil pattern 101 could be increased, such as by increasing its width and thickness. However, the internal space of the camera module is limited, and increasing the overall width and thickness of coil pattern 101 might increase the overall size, affecting other structures. Therefore, referring to… Figure 1C To avoid making the overall size of the coil assembly 10 too large, it is considered to increase the local cross-sectional area of ​​the coil pattern 101. Furthermore, if the cross-sectional area of ​​the portion where the coil pattern 101 interacts with the magnet is increased, the impact on the actuator's movement after the increase in area needs to be considered. Therefore, it is considered to increase the cross-sectional area of ​​the first coil pattern 11 of the coil pattern 101. The cross-sectional direction is perpendicular to the plane defined by the first and second directions.

[0063] The second coil pattern 12 is opposite to the magnet 20, facing the N-polarity and S-polarity portions of the magnet 20. The current direction I of the second coil pattern 12 is perpendicular to the magnetic field direction B of the magnet 20, and they interact to generate a vertical driving force F. The current direction I of 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 a relatively small impact on the driving performance of the actuator.

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

[0065] When forming the coil pattern 101 on the substrate 102, the width of the first coil pattern 11 is increased, thereby reducing the resistance value of the coil assembly 10. Alternatively, the width of the first coil pattern 11 is preset to be greater than the width of the second coil assembly width 12, thus pre-setting the formation of the coil pattern 101. Figure 1C As shown, the cross-sectional area S1 of the first coil pattern 11 is affected by the width W1 and the thickness T1, while the cross-sectional area S2 of the second coil pattern 12 is determined by the width W2 and the thickness T2. When the width W1 > the width W2 and the thickness T1 = the thickness T2, then the cross-sectional area S1 > the cross-sectional area S2. Increasing the width W1 of the first coil pattern 11 increases the cross-sectional area S1 at that point, thereby reducing the resistance value.

[0066] The first coil pattern 11 and the second coil pattern 12 are formed with the same thickness to facilitate printing on the substrate 102. The first coil pattern 11 and the second coil pattern 12 can be a single layer or a multi-layer structure in a third direction (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 value.

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

[0068] The magnet 20 includes a first portion 201 and a second portion 202 distributed along a 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 respectively.

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

[0070] The extension direction of the first coil pattern 11 is parallel to the arrangement direction of the first part 201 and the second part 202. The second coil pattern 12 is oriented toward a single polarity part, and the first coil pattern 11 is oriented toward two polarity parts of the magnet 20 with different polarities.

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

[0072] The first part 201 and the second part 202 are implemented as two parts with opposite magnetization directions, and can be connected to each other or distributed with intervals between them. Further, the first part 201 and the second part 202 are distributed with a certain space between them, or the first part 201 and the second part 202 are distributed as spacer members. The size of the magnet 20 is determined as a whole by the interval between the first part 201, the second part 202, and the first part 201, the second part 202 along the first direction.

[0073] The projection of magnet 20 along a third direction relative to the projection of coil pattern 101 along a third direction has a portion protruding along a first direction. The projection of coil pattern 101 along a third direction relative to the projection of magnet 20 along a third direction has a portion protruding along a second direction.

[0074] The projections of the second coil pattern 12 along a third direction and the magnet 20 along a third direction largely overlap. Further, in some examples, the projection of the second coil pattern 12 along a third direction falls within the projection of the magnet 20 along a third direction. That is, the distance the second coil pattern 12 extends along the second direction matches the distance the magnet 20 extends along the second direction. Even further, the distance the second coil pattern 12 extends along the second direction does not exceed the distance the magnet 20 extends along 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 a third direction fall into the projections of the first part 201 and the second part 202 along a third direction, respectively.

[0076] The projection of the first coil pattern 11 along a third direction protrudes along a second direction relative to the projection of the magnet 20 along a third direction. That is, the first coil pattern 11 protrudes partially relative to the magnet 20 along the second direction. This makes the design of the first coil pattern 11 have a smaller impact on the driving performance of the actuator.

[0077] In one embodiment, the first coil pattern 11 faces the two polarity portions of the magnet 20 along a third direction, that is, the first coil pattern 11 faces the N polarity portion and the S polarity portion of the magnet 20. In this manner, the projections of the first coil pattern 11 and the magnet 20 along a third direction have overlapping portions, respectively, at the N polarity portion and the S polarity portion of the magnet 20.

[0078] In one embodiment, the first coil pattern 11 protrudes completely relative to the magnet 20 along the second direction, that is, the projections of the first coil pattern 11 and the magnet 20 along the third direction do not overlap.

[0079] Reference Figure 2A and Figure 2BAs illustrated, the coil pattern 101 includes N coil pattern units 1011, each coil pattern unit 1011 forming a complete circle, that is, the coil pattern unit 1011 extends around the Z-axis in a complete circle. 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 complete circle.

[0080] Furthermore, the coil pattern 101 includes a bend 13, which connects the first coil pattern 11 and the second coil pattern 12. Even further, 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] In this embodiment, each coil pattern unit 1011 is electrically connected to the others. In one embodiment, after one coil pattern unit 1011 is formed, it extends inward or outward from the bend 13 at a certain angle, and continues to wrap around to form another coil pattern unit 1011. The remaining coil pattern units 10111 are formed sequentially in this manner, meaning the coil pattern 101 is formed in a spiral shape on the substrate 102. In one embodiment, each coil pattern unit 1011 has a conductive connection portion.

[0082] The width W11 of the N first coil pattern units 111 and the gap G1 between each first coil pattern unit 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 second coil pattern unit 121 form the total width W2 of the second coil pattern 12.

[0084] exist Figure 2A In the example shown, 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 value of each coil pattern unit 1011, thereby reducing the resistance of the coil pattern 101.

[0085] That is, by increasing the width of the non-participation and magnetic field interaction of each coil pattern unit 1011 to generate the driving force F, the cross-sectional area of ​​the coil pattern 101 is increased, the resistance value is reduced, and the driving force of the actuator is avoided.

[0086] Furthermore, the gap G between each coil pattern unit 1011 is the same. Each coil pattern unit 1011 is distributed with a uniform gap interval to form a coil pattern 101. The gap G1 between each adjacent first coil pattern unit 111 is the same, and the gap G2 between each adjacent second coil pattern unit 121 is the same, and G = G1 = G2. The coil pattern 101 has a uniform gap, which can simplify the design and reduce the molding difficulty on the substrate 102.

[0087] exist Figure 2B In the example shown, each coil pattern unit 1011 has a first coil pattern unit 111 comprising a plurality of first coil units 1111 connected in parallel, and a second coil pattern unit 121 comprises 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 participate in the interaction with the magnetic field to generate the driving force F, forming a parallel circuit to reduce the resistance value. This makes the width W1 of the first coil pattern 11 formed by adding the first parallel coil unit 1111 larger than the width W2 of the second coil pattern 12.

[0089] Furthermore, the width of the second coil unit 1211 is the same as 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. That is, the coil pattern 101 has uniform gaps to simplify the design. Based on this, local parallel circuits are added to effectively reduce resistance.

[0090] Alternatively, the second coil pattern unit 121 may include a plurality of second coil units 1211, the number of which is less than the number of first coil units 1111 connected in parallel. 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, wherein 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 final width W1 of the first coil pattern 11 is greater than the width W2 of the second coil pattern 12.

[0091] Figure 3BThis is a simplified illustration of one embodiment of the actuator of this 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 mounted on the movable member 30, and the other is mounted on the fixed member 40. They interact to generate a driving force F, thereby driving 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 is not limited to, a lens module, an optical path deflection module, a photosensitive chip, etc.

[0092] If the coil assembly 10 is mounted on the movable member 30 and the magnet 20 is mounted on the fixed member 40, then the actuator is a moving coil type; if the coil assembly 10 is mounted on the fixed member 40 and the magnet is mounted on the movable member 30, then the actuator is a moving magnet type. This application does not limit 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 assembling the coil assembly 10 and the magnet 20, a driving force in a first direction is generated. The second coil pattern 12 of the coil pattern 101 interacts with the magnet 20 to generate a driving force. The first coil pattern 11 does not participate in the interaction with the magnet 20, and its linewidth is larger than that of the second coil pattern 12, which can effectively reduce resistance and improve the quality of the actuator of this application.

[0094] The actuator of this 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 realize optical image stabilization (OIS), autofocus (AF), optical zoom, etc., wherein the optical module can be a lens module, an optical path deflection module, and / or a photosensitive module. Specifically, the application of the actuator of this application in a periscope camera module is illustrated using this application as an example.

[0095] refer to Figures 3A to 4B As illustrated, the actuator of this application is used 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, with the coil assembly 10 mounted on the fixed member 40 and the magnet 20 mounted on the movable member 30 as an example. In other examples of this application, it is also feasible to implement 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.

[0096] The actuator also includes an actuated optical module, which in this example is implemented as a light path deflection module 50. The light 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, causing the movable member 30 to carry the light path deflection module 50 in motion.

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

[0098] Light is incident on the light path deflection module 50 along the second direction (Y-axis), deflected by the light path deflection module 50, and then emitted along the first direction (X-axis). The lens module and the photosensitive module (not shown in the figure) are sequentially arranged on the emission side of the light path deflection module 50 along the first direction. The light passes through the lens module and reaches the photosensitive module, forming an image in 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 around a first rotation axis R1, and the second actuator drives the optical path deflection module 50 to rotate around 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 direction, i.e., parallel to the light incident direction, and the second rotation axis R2 extends along the Z-axis direction, i.e., orthogonal to both the light incident and light exit directions.

[0100] like Figure 3B As shown, 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 mounted opposite each other on the movable member 30 and the fixed member 40 along the X-axis direction, and interact with each other to drive the optical path deflection module 50 to rotate about the second rotation axis R2.

[0101] It is understood that the second coil assembly 10A can be implemented with reference to the implementation of the coil assembly 10, using a design with different wire widths, or a design with the same wire width, or a conventional design.

[0102] The guide member 33 is implemented in two parts, distributed relatively along the Z-axis, located between the first movable member 31 and the second movable member 32. Figure 4AAs shown, 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, supporting the first movable member 31 along the Y-axis. The second movable member 32 includes two support arms 321 that are relatively distributed along the Z-axis and extend along the Y-axis. Two guide members 33 are respectively installed in the second receiving grooves 320 defined at the top 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, suitable for accommodating at least a portion of the guide members 33 and the support arms 321. The first receiving grooves 310 and the second receiving grooves 320 cooperate with each other to define the movement space of the guide members 33. When the second coil assembly 10A and the second magnet 20A of the second actuator interact, driving the first movable member 31 to move, the guide members 33 guide the first movable member 21 to rotate around the second rotation axis R2, realizing 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 distributed opposite to each other on two sides of the movable member 30 and the fixed member 40 along the Z-axis. That is, the fixed member 40 is provided with second mounting spaces 401 on both sides along the Z-axis, the movable member 30 is provided with first mounting spaces 301 on both opposite sides along the Z-axis, at least two coil assemblies 10 are mounted opposite to each other on both sides of the fixed member 40 along the Z-axis, and at least two magnets 20 are mounted opposite 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 on at least two opposite sides of the movable member 30 along the Z-axis direction to form the coil pattern 101 opposite to each other along the Z-axis direction.

[0105] Specifically, the coil assembly 10 and magnet 20 distributed on one side of the movable member 30 along the Z-axis direction are described. The implementation of the coil assembly 10 and magnet 20 distributed on the opposite side of the movable member 30 along the Z-axis direction is the same.

[0106] The coil pattern 101 includes a first coil pattern 11 and a second coil pattern 12. The first coil pattern 11 is distributed along a first direction, perpendicular to the light incident direction of the light path deflection module 50, and parallel to the light emitting direction of the light path deflection module 50. The second coil pattern 12 is distributed along a second direction, parallel to the light incident direction of the light path deflection module 50, and perpendicular to the light emitting direction of the light path deflection 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 along a direction parallel to the plane determined by the light incident and light emitting directions of the light path deflection module 50. The magnet 20 and the coil assembly 10 are opposite each other along a direction perpendicular to the plane determined by the light incident and light emitting directions.

[0107] refer to Figure 4A and Figure 4B The magnet 20 includes a first part 201 and a second part 202. In this example, the first part 201 and the second part 202 are two independent magnets, with a gap 200 between them. The polarities of the portions of the first part 201 and the second part 202 facing the coil assembly 10 are different, such as forming an N-polarity portion and an S-polarity portion, respectively. The polarities of the portions of the first part 201 and the second part 202 facing away from the coil assembly 10 are also different, such as forming an S-polarity portion and an N-polarity portion, respectively.

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

[0109] The coil pattern 101 includes second coil patterns 12A and 12B that are respectively opposite to the first portion 201 and the second portion 202, and the second coil patterns 12A and 12B are respectively oriented towards one polarity portion. The coil pattern 101 also includes first coil patterns 11A and 11B, which are respectively oriented towards the first portion 201 and the second portion 202, and are respectively opposite to two polarity portions of the magnet 20 with different polarities.

[0110] The first part 201 and the second part 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 extending directions of the first part 201, the second part 202, and the second coil patterns 12A and 12B are parallel to the light incident direction of the light path deflection module 50, and the extending directions of the first coil patterns 11A and 11B are parallel to the light exit direction of the light path deflection module 50.

[0111] A current is passed through coil pattern 101 in one direction. 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 direction of the first part 201 and the magnetic field direction of the second part 202, respectively. They interact to generate a driving force F.

[0112] The driving force F is parallel to the extension 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 member 30 along the Z-axis to generate driving forces in opposite directions, thereby driving the movable member 30 to rotate around the first rotation axis R1, so that the optical path deflection module 50 rotates around the first rotation axis R1, thereby realizing the swing motion of the optical path deflection module 50.

[0114] A second guide member (not shown in the figure) is provided between the second movable member 32 and the fixed member 40. The second guide member guides the second movable member 32 to rotate around the first rotation axis R1, so that the first movable member 31 carries the optical path deflection module 50 to rotate around the first rotation axis R1.

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

[0116] Reference Figure 4A As illustrated, a space 200 exists between the first part 201 and the second part 202. The movable member 30 is configured to assemble the magnet 20. The first assembly space 301 is divided into a first movable assembly space 3011 and a second movable assembly space 3012 that are spaced apart from each other. The first movable assembly space 3011 and the second movable assembly space 3012 are distributed at intervals 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 a receiving portion 311, meaning that 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 relative to the inner wall defining the first movable assembly space 3011 and the second movable assembly space 3012, and a first receiving groove 310 extends upward from the bottom of the receiving portion 311 along the Y-axis direction. Further, a second sub-receiving groove 3102 and a first sub-receiving groove 3101 extend upward along the Y-axis direction.

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

[0119] Therefore, the guide member 33 is disposed between the first portion 201 and the second portion 202 of the magnet 20, forming the fulcrum of motion of the first movable member 31. Further, at least two guide members 33 are disposed opposite each other along the Z-axis, respectively located between the first portion 201 and the second portion 202 of the magnet 20 distributed on both sides of the movable member 30. The center point of the guide member 33 is located on the second rotation axis R2. The line connecting the center points of at least two guide members 33 coincides with the second rotation axis R2, and the extending direction of the second rotation axis R2 passes through the gap space 200 between the first portion 201 and the second portion 202.

[0120] Furthermore, in some examples, the extension direction of the second rotating shaft 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 its movement is more stable and precise.

[0121] First coil patterns 11A and 11B extend along a first direction perpendicular to the light incident direction. A spacer 200 is located between the first portion 201 and the second portion 202 along this first direction. The first coil patterns 11A and 11B are opposite to the first portion 201, the spacer 200, and the second portion 202 along a third direction. The widths W1A and W1B of the first coil patterns 11A and 11B are greater than the widths W2A and W2B of the second coil patterns 12A and 12B, effectively reducing the resistance of the 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 implemented as the same or as different, as long as either one is greater than W2A and W2B.

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

[0124] The foregoing examples illustrate that the coil assembly 10 with a widened design of this application is implemented as an OIS coil assembly for the swinging motion of the optical path deflection module 50. In other examples of this 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 deflection module 50.

[0125] Reference Figures 5A to 5CThe illustration shows an example of the coil assembly 10 and magnet 20 of this 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 deflection module along the first direction (X-axis) reaches the photosensitive module through the lens module 50A. At least one of the two sides of the movable member 30A opposite each other along the third direction (Z-axis) is provided with a first mounting space 301A, and at least one of the two sides of the fixed member 40A opposite each other along the third direction is provided with a second mounting space 401A, and the first mounting space 301A is opposite each other 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, so as to interact and drive the lens carrier to carry the lens module 50A to move along the first direction, adjust the focus, and realize the AF function or optical zoom, etc.

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

[0127] The first coil pattern 11 of the coil pattern 101 extends along the optical axis direction (first direction, X-axis) parallel to the lens module 50A, and the second coil pattern 12 extends along the optical axis direction (second direction, Y-axis) perpendicular to the lens module 50A. The second coil pattern 12 and the magnet 20 are opposite each other along another direction perpendicular to the optical axis of the lens module 50A, or in other words, perpendicular to the coil pattern 101 (third direction, Z-axis), and interact to generate a force along the optical axis direction of the lens module 50A, driving the movable member 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 at the first coil pattern 11, thereby reducing the resistance of the coil assembly 10, improving its quality, and reducing losses.

[0129] The foregoing examples illustrate the application of the actuator to a periscope camera module. In other examples of this application, the actuator can be applied to a vertical camera module. The optical module can be implemented as an optical lens or a photosensitive chip of the vertical camera module. The coil assembly 10 and the magnet 20 interact to drive the optical lens to move in a plane perpendicular to its optical axis to achieve lens-motion OIS, or to drive the photosensitive chip to move in a plane perpendicular to its optical axis to achieve chip-motion OIS.

[0130] The actuator coil assembly 10 provided in this application features a widened design. This widening does not affect the overall length or number of turns of the coil assembly 10; instead, it widens only a portion of the coil pattern 101. Based on the original design, this increases the cross-sectional area of ​​a portion of the coil pattern 101, reducing resistance while avoiding excessively increasing the volume of the coil assembly 10. The implementation method and degree of widening can be determined according to design requirements. Furthermore, the width of the first coil pattern unit 111 in each turn of the coil pattern 101 is increased or a parallel circuit design is used, thereby reducing the resistance of each coil pattern unit and improving the quality of the coil assembly 10.

[0131] Reference Figure 6A and Figure 6B As illustrated, the coil assembly 10 of this application is mounted to a printed circuit board 100. More preferably, the substrate 102 is provided with a soldering area 1021, which is located at the edge of the substrate 102, or near the edge of the substrate 102. The soldering area 1021 is soldered to the printed circuit board 100, achieving a fixed connection and a conductive connection between the coil assembly 10 and the printed circuit board 100. Further, the coil pattern 101 leads out positive and negative terminals and is conductively connected to the printed circuit board 100, allowing the coil pattern 101 to obtain 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 may also be implemented as a rigid board, a rigid-flex board, etc.

[0133] Combination Figures 3A to 4B Example, Figure 6A The printed circuit board 100 shown can be mounted to a periscope camera module, used as the mainboard of the periscope camera module, or as a stabilization circuit board. The printed circuit board 100 is mounted on the fixed member 40 around the movable member 30. Coil assemblies 10 are mounted on the two surfaces of the printed circuit board 100 facing the movable member 30 in a third direction, so that the coil assemblies 10 are distributed on both sides of the movable member 30. A second coil assembly 10A is mounted on the surface facing the movable member 30 in a first direction, so that the second coil assembly 10A is distributed on one side of the movable member 30.

[0134] Combination Figures 5A to 5C Example, Figure 6A and Figure 6B The printed circuit board 100 shown can be mounted to a periscope camera module, serving as the mainboard of the periscope camera module or a focus adjustment circuit board. Coil assemblies 10 are mounted on the surface of the printed circuit board 100 facing the lens module 50A or on opposite sides.

[0135] Combination Figures 3A to 5CFor example, and refer to Figure 6B The printed circuit board 100 can extend integrally from the outside of the optical path deflection module 50 to the outside of the lens module 50A. In other words, the periscope camera module includes an integrally extended printed circuit board 100 with coil assembly 10 mounted on the surface facing the optical path deflection module 50 and the lens module 50A.

[0136] In addition, refer to Figure 7 As illustrated, the outermost edge of the coil pattern 101 is 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 E22, and the distance between edge E121 and edge E22 is D2, where D1 = D2. That is, 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 spacing space 1010. The distance between the innermost edges E112 of the first coil patterns 11 on both sides defines the distance of the inner spacing 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 spacing space 1010 along the first direction.

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

[0139] In some examples, the actuator of this application also includes a position sensor 70 for detecting position changes, so that the actuator can make corresponding adjustment movements to achieve image stabilization, focusing, zooming, etc. (See reference...) Figure 5B The position sensor 70 is set in the inner space 1010 to avoid occupying extra space and improve space utilization.

[0140] According to another aspect of this application, in conjunction with Figures 1A to 7 As an example, this application also provides a method for manufacturing a camera module, including 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 along a first direction and a second coil pattern 12 extending along 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] The coil assembly 10 formed by the coil pattern 101 and the substrate 102 is soldered to the printed circuit board 100;

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

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

[0145] The above description is merely a preferred embodiment of this application and an explanation 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 technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described 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 component, a coil assembly, and a magnet are provided. The optical module is mounted on the movable component, and one of the coil assembly and the magnet is mounted on the movable component at at least one side of the optical module. The coil assembly and the magnet interact to generate a driving force that drives the movable component to carry the optical module in motion. The magnet includes a first part and a second part, wherein the first part and the second part respectively form polarity portions with different polarities on the side facing the coil assembly; The coil assembly includes a substrate and a coil pattern with conductive properties formed on the substrate. The coil pattern includes two first coil patterns extending along a first direction and opposite each other along a second direction, and two second coil patterns extending along a second direction perpendicular to the first direction and opposite each other along the first direction, wherein the first direction and the second direction are orthogonal. Wherein, the extension direction of the first coil pattern is parallel to the arrangement direction of the first part and the second part, the width of the first coil pattern is greater than the width of the second coil pattern, and the second coil pattern interacts with the first part and the second part of the magnet.

2. The camera module according to claim 1, characterized in that, The first coil pattern protrudes at least a portion relative to the magnet along a 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 multiple coil pattern units, each coil pattern unit including a first coil pattern unit extending along a first direction and a second coil pattern unit extending along a second direction, wherein the width of the first coil pattern unit is greater than the width of the second coil pattern unit.

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

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

7. The camera module according to claim 1, characterized in that, The first coil pattern and the second coil pattern are at the same distance from the 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, to which the coil assembly is soldered, wherein the substrate is provided with at least one soldering area for fixed connection with the printed circuit board.

9. The camera module according to claim 8, characterized in that, It also includes a fixed member, the movable member being movably mounted to the fixed member, and the other of the coil assembly and the magnet being mounted to the fixed member.

10. The camera module according to claim 9, characterized in that, The optical module is a light path deflection module. The coil assembly and the magnet are installed on both sides of the light path deflection module. The extension direction of the first coil pattern is parallel to the light emission direction of the light path deflection module, and the extension direction of the second coil pattern is parallel to the light incident direction of the light path deflection module. The magnet and the coil assembly interact to generate a driving force parallel to the light emission direction, driving the light path deflection module to rotate around a first rotation axis, which 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 guide component. The first movable component and the second movable component are mounted on the fixed component along a second direction. The guide component is mounted between the first movable component and the second movable component to guide the movement of the first movable component. The camera module further includes a second coil assembly and a second magnet. The second coil assembly and the second magnet are mounted on the fixed component and the first movable component along the first direction to drive the first movable component to rotate around a second rotation axis.

12. The camera module according to claim 11, characterized in that, The second movable member is mounted 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 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 a second receiving groove defined at the top of the support arms. 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, with a space between the first part and the second part, and the support arm is located in the space. The 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 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 part is provided between the first movable assembly space and the second movable assembly space. The receiving part 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 into 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 disposed on at least one side of the lens module and interact to generate a driving force parallel to the optical axis of the lens module. 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, Includes the following steps: A substrate with a coil pattern is provided, the coil pattern including a first coil pattern extending along a first direction and a second coil pattern extending along a second direction perpendicular to the first direction, wherein the width of the first coil pattern is greater than the width of the second coil pattern; The coil assembly formed by the coil pattern and the substrate is soldered to a printed circuit board; One of the coil assembly and the magnet is mounted to the movable component, and the other is mounted to the fixed component; The magnet includes a first part and a second part, the first part and the second part respectively forming polarity portions with different polarities on one side facing the coil assembly, the first part and the second part being arranged along the first direction, and the second coil pattern interacting with the first part and the second part of the magnet.

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