Motor and camera module

Abstract

This invention relates to a motor and a camera module. The motor includes: a base; a stabilization carrier for supporting an optical lens, movably disposed on the base along a direction perpendicular to the optical axis of the optical lens; and at least one set of stabilization drive structures, each set of stabilization drive structures including a stabilization magnet disposed on the stabilization carrier and at least one set of sub-coil groups fixed relative to the base. Each sub-coil group includes a first stabilization coil and a second stabilization coil. The first stabilization coil is spaced apart from the stabilization magnet along a relative arrangement direction, and the second stabilization coil is spaced apart from the stabilization magnet along the optical axis. The driving force generated by the first and second stabilization coils of the same sub-coil group on the stabilization magnet along the relative arrangement direction has the same orientation; both act together on the same stabilization magnet to generate a driving force perpendicular to the optical axis, thereby improving the driving force of the motor perpendicular to the optical axis and the stabilization drive stroke.

Description

Technical Field

[0001] This invention relates to the technical field of camera modules, and in particular to a motor and a camera module. Background Technology

[0002] In electronic devices such as mobile phones and tablets, camera modules have become a standard feature to meet shooting needs. To ensure shooting quality, current camera modules are usually equipped with optical image stabilization (OIS), which relies on a motor to drive the movement of the optical lens.

[0003] As consumers' demands for shooting quality continue to increase, the image stabilization performance of camera modules is becoming increasingly critical. The key to improving image stabilization performance lies in increasing the driving speed and travel of the motor to the optical lens. Most current image stabilization drives are achieved through electromagnetic drives. Although increasing the volume of coils or magnets can increase the driving force and travel, it will significantly increase the size of the motor, making it unsuitable for camera modules with high miniaturization requirements. Summary of the Invention

[0004] Therefore, it is necessary to provide a motor and camera module that can effectively improve the driving force and driving stroke, addressing the current problems of insufficient driving force and driving stroke in the motors of camera modules.

[0005] This application first provides a motor, comprising: a base; a stabilizing carrier for supporting an optical lens, movably disposed on the base along a direction perpendicular to the optical axis of the optical lens; and at least one set of stabilizing drive structures, each set of the stabilizing drive structures including a stabilizing magnet disposed on the stabilizing carrier and at least one set of sub-coil groups fixed relative to the base, each sub-coil group including a first stabilizing coil and a second stabilizing coil, the first stabilizing coil being spaced apart from the stabilizing magnet along a relative setting direction, the second stabilizing coil being spaced apart from the stabilizing magnet along the optical axis direction, the first stabilizing coil and the second stabilizing coil in the same sub-coil group exerting a driving force on the stabilizing magnet along the relative setting direction having the same orientation; wherein, the relative setting direction is perpendicular to the optical axis direction.

[0006] In one embodiment, the motor includes two sets of image stabilization drive structures. One set of image stabilization drive structures is located on the first axial direction side of the optical lens, and its sub-coil group is used to generate a driving force along the first axial direction on the image stabilization magnet. The other set of image stabilization drive structures is located on the second axial direction side of the optical lens, and its sub-coil group is used to generate a driving force along the second axial direction on the image stabilization magnet. The first axial direction and the second axial direction are both perpendicular to the optical axis direction and are perpendicular to each other.

[0007] In one embodiment, the image stabilization drive structure includes at least two first image stabilization coils spaced apart along a side direction, and / or at least two second image stabilization coils spaced apart along the side direction, wherein the side direction is perpendicular to the relative arrangement direction and the optical axis direction.

[0008] In one embodiment, the image stabilization drive structure includes two first image stabilization coils symmetrically arranged around the drive axis, and two second image stabilization coils symmetrically arranged around the drive axis, wherein the drive axis is a virtual axis passing through the optical axis of the optical lens along the opposite arrangement direction.

[0009] In one embodiment, the first stabilization coil and the second stabilization coil of each sub-coil group are positioned opposite each other along the side direction; wherein the side direction is perpendicular to the relative setting direction and the optical axis direction.

[0010] In one embodiment, the first image stabilization coil includes a first adjacent segment, a first distal segment, and two first connecting segments connecting the two. The first adjacent segment is located on one side of the second image stabilization coil in the same sub-coil group along the optical axis direction. The second image stabilization coil includes a second adjacent segment, a second distal segment, and two second connecting segments connecting the two. The second adjacent segment is located on one side of the first image stabilization coil in the same sub-coil group along the relative arrangement direction. The current direction of the first adjacent segment and the second adjacent segment in the same sub-coil group is the same.

[0011] In one embodiment, the first adjacent segment of the first image stabilization coil is parallel to the first far-side segment, and the second adjacent segment of the second image stabilization coil is parallel to the second far-side segment.

[0012] In one embodiment, the anti-shake magnet includes a plurality of anti-shake sub-magnets distributed along the side direction. Each sub-coil group corresponds to a position of one of the anti-shake sub-magnets along the side direction. The anti-shake sub-magnet corresponding to the sub-coil group has two magnetic poles distributed along opposite directions, and the magnetic pole directions of the two anti-shake sub-magnets corresponding to two adjacent sub-coil groups are opposite.

[0013] In one embodiment, the second anti-shake coil of the sub-coil group is located on the side of the base opposite to the anti-shake sub-magnet along the relative setting direction.

[0014] In one embodiment, the anti-shake magnet has two magnetic poles, which are distributed in opposite directions.

[0015] In one embodiment, when the image stabilizing magnet is located at an extreme position away from the optical axis of the optical lens along the relative setting direction, the center line of the image stabilizing magnet is located on the side of the center line of the second coil away from the optical axis along the relative setting direction, wherein the center line of the image stabilizing magnet is the center line of the image stabilizing magnet along the relative setting direction, and the center line of the second coil is the center line of the second image stabilizing coil along the relative setting direction.

[0016] In one embodiment, when the anti-shake magnet is located at an extreme position near the optical axis along the relative setting direction, the centerline of the anti-shake magnet is located between the centerline of the second coil and the surface of the second anti-shake coil near the optical axis along the relative setting direction.

[0017] In one embodiment, the second image stabilization coil includes a second adjacent segment, a second far-side segment, and two second connecting segments connecting the two. The second adjacent segment is located on one side of the first image stabilization coil that is close to the same sub-coil group. The width of the second far-side segment along the relative setting direction is greater than that of the second adjacent segment.

[0018] In one embodiment, the second image stabilization coil has a notch along the opposite orientation of the optical lens near the optical axis to avoid the optical lens.

[0019] In one embodiment, the second image stabilization coil includes a second adjacent segment, a second far-side segment, and two second connecting segments connecting the two. The second adjacent segment is located on the side away from the optical axis along the relative setting direction. The notch is opened in the second far-side segment. The width of the second far-side segment along the relative setting direction is smaller than that of the second adjacent segment.

[0020] In one embodiment, the motor further includes a focusing carrier movably disposed on the image stabilization carrier along the optical axis. The focusing carrier includes a main body and a protrusion protruding from the main body along the optical axis. The main body and the protrusion have a lens aperture for accommodating the optical lens through them along the optical axis. The second image stabilization coil is spaced apart from the main body along the optical axis. The projection of the second image stabilization coil along the optical axis at least partially overlaps with the main body, and the second image stabilization coil is spaced apart from the protrusion along the opposite arrangement direction.

[0021] In one embodiment, the protrusion includes a contoured section located between the optical lens and the second image stabilization coil along the relative arrangement direction. The inner and outer walls of the contoured section are both contoured to the outer peripheral surface of the optical lens, and the notch is contoured to the outer wall of the contoured section.

[0022] In one embodiment, the motor further includes a top cover that covers the base to form an accommodating space inside both, the first anti-shake coil is fixed to the base, and the second anti-shake coil is located on one or both sides of the anti-shake carrier along the optical axis and is fixed to the base and / or the top cover.

[0023] In one embodiment, the motor further includes a stabilizing support located between the base and the stabilizing carrier along the optical axis direction. The stabilizing support is movably disposed on the base along a first axis direction, and the stabilizing carrier is movably disposed on the stabilizing support along a second axis direction. The second stabilizing coil is disposed on the side of the stabilizing carrier away from the base and fixed to the top of the base or the upper cover. The first axis direction and the second axis direction are both perpendicular to the optical axis direction and are perpendicular to each other.

[0024] This application also provides a camera module, including an optical lens, a photosensitive module, and the aforementioned motor; the optical lens is disposed on the image stabilization carrier and is used to receive and emit light along the optical axis; the photosensitive module is disposed on the base and is used to receive the light emitted by the optical lens for imaging.

[0025] The aforementioned motor, by setting a first anti-shake coil and a second anti-shake coil respectively on the side of the anti-shake magnet perpendicular to the optical axis and the side of the optical axis, and having both act together on the same anti-shake magnet to generate a driving force perpendicular to the optical axis, has the following advantages: Firstly, during the anti-shake process, the anti-shake magnet moves along its relative setting direction, and the distance between the anti-shake magnet and the first anti-shake coil changes, thus the magnitude of the driving force between them also changes with the distance. In particular, when the distance between the anti-shake magnet and the first anti-shake coil is large, the driving force will be significantly insufficient. Therefore, in this application, by further setting a second anti-shake coil corresponding to the anti-shake magnet along the optical axis, it can be used to supplement and enhance the anti-shake driving force. Secondly, by utilizing the three-dimensional space of the anti-shake magnet in the horizontal and vertical directions to form a synergistic drive, the volume expansion problem caused by simply increasing the size of a single coil or magnet is avoided. While maintaining the motor structure's compactness and small size to meet the miniaturization requirements of modern electronic device camera modules, the driving force perpendicular to the optical axis and the anti-shake driving stroke of the motor are significantly improved. Attached Figure Description

[0026] Figure 1 This is an exploded view of the motor in this application;

[0027] Figure 2 This is a perspective view of the anti-vibration drive structure in the motor of this application;

[0028] Figure 3 for Figure 2A stereoscopic view from another angle;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a perspective view of the anti-shake drive structure of the motor in another embodiment of this application;

[0031] Figure 6 for Figure 2 A front view of one of the anti-shake drive structures when the anti-shake magnets are in the extreme position far from the optical axis;

[0032] Figure 7 for Figure 6 A front view of the anti-shake magnet when it is in the extreme position close to the optical axis;

[0033] Figure 8 for Figure 2 Top view;

[0034] Figure 9 This is a top view of the camera module of this application;

[0035] Figure 10 for Figure 9 A cross-sectional view of the location of one of the anti-shake drive structures;

[0036] Figure 11 This is a top view of the anti-shake drive structure in another embodiment of the motor of this application;

[0037] Figure 12 for Figure 1 A three-dimensional view of the focusing carrier from another angle;

[0038] Figure 13 This is a perspective view of the camera module of this application;

[0039] Figure 14 This is a perspective view of the anti-shake drive structure of the motor in another embodiment of this application;

[0040] Figure 15 for Figure 1 A 3D view of the image stabilization support components;

[0041] Figure 16 for Figure 15 A stereoscopic view from another angle;

[0042] Figure 17 This is a perspective view of the conductive structure in the motor of this application;

[0043] Figure 18 for Figure 9 A cross-sectional view of the location of the center focus drive component;

[0044] Figure 19 for Figure 18 A cross-sectional view at position BB in the middle.

[0045] Reference numerals: 100, Motor; 10, Base; 20, Image stabilization carrier; 30, Image stabilization drive structure; 30a, First image stabilization drive structure; 30b, Second image stabilization drive structure; 31, Image stabilization magnet; 311, Image stabilization sub-magnet; 32, Image stabilization coil group; 32a, Sub-coil group; 321, First image stabilization coil; 3211, First adjacent segment; 3212, First far-edge segment; 3213, First connecting segment; 322, Second image stabilization coil; 3221, Second adjacent segment; 3222, Second far-edge segment; 3223, Second connecting segment; 322a, Notch; 323, Substrate; 34, Image stabilization position sensing element; 40, Focusing carrier; 41, Main body; 42, Protrusion; 421, Contouring segment; 43, Lens 50. Hole; 51. Image stabilization support assembly; 52. Image stabilization support component; 53. First image stabilization ball groove; 54. Second image stabilization ball groove; 55. First image stabilization ball; 56. Second image stabilization ball; 57. Image stabilization magnetic component; 60. Top cover; 71. Conductive insert assembly; 80. Conductive insert; 81. Focusing drive assembly; 82. Focusing magnet; 83. Focusing sub-magnet; 84. Focusing coil; 91. Focusing circuit board; 91. Focusing position sensing element; 92. Focusing magnetic part; 91. Focusing magnetic piece; 91. Magnetic reinforcement component; 110. Focusing support part; 111. Top circuit board; 112. Stator fixing part; 113. Moving part; 200. Optical lens; 300. Photosensitive module;

[0046] C1, First axis; C2, Second axis; M1, Anti-shake magnet centerline; M2, Second coil centerline; O, Optical axis. Detailed Implementation

[0047] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0053] Please combine Figure 1 , Figure 2 , Figure 3 as well as Figure 9 As shown, this application first provides a motor, including: a base 10; a stabilization carrier 20 for supporting an optical lens 200, movably disposed on the base along a direction perpendicular to the optical axis O of the optical lens 200; and at least one set of stabilization drive structures, each set of the stabilization drive structures including a stabilization magnet disposed on the stabilization carrier and a stabilization coil group, the stabilization coil group including at least one set of sub-coil groups fixed relative to the base, each sub-coil group including a first stabilization coil and a second stabilization coil, the first stabilization coil being spaced apart from the stabilization magnet along a relative arrangement direction, the second stabilization coil being spaced apart from the stabilization magnet along the optical axis direction, the first stabilization coil and the second stabilization coil in the same sub-coil group exerting a driving force on the stabilization magnet along the relative arrangement direction in the same direction; wherein, the relative arrangement direction is perpendicular to the optical axis direction.

[0054] In this application, a first anti-shake coil 321 and a second anti-shake coil 322 are respectively arranged on the side of the anti-shake magnet 31 perpendicular to the optical axis O, and both act together on the same anti-shake magnet 31 to generate a driving force perpendicular to the optical axis O. The configuration is as follows:

[0055] On the one hand, during the image stabilization process, the image stabilization magnet 31 will move along the relative setting direction, and the distance between the image stabilization magnet 31 and the first image stabilization coil 321 will change. Consequently, the magnitude of the driving force between the two will also change with the distance. In particular, when the distance between the image stabilization magnet 31 and the first image stabilization coil 321 is large, the driving force will be significantly insufficient. Therefore, in this application, by further setting a second image stabilization coil 322 that is at least partially corresponding to the image stabilization magnet 31 along the optical axis O, it can be used to supplement and enhance the image stabilization driving force.

[0056] On the other hand, the three-dimensional space of the anti-shake magnet 31 in the horizontal and vertical directions is used to form a coordinated drive, avoiding the volume expansion problem caused by simply increasing the size of a single coil or magnet. While maintaining the compact structure and small size of the motor to meet the miniaturization requirements of modern electronic device camera modules, the driving force of the motor in the direction perpendicular to the optical axis and the anti-shake drive stroke are significantly improved.

[0057] Specifically, the first stabilization coil 321 and the stabilization magnet 31 are arranged opposite each other in a direction perpendicular to the optical axis O, and the second stabilization coil 322 and the stabilization magnet 31 are arranged opposite each other in the same direction. In other words, the first stabilization coil 321 and the second stabilization coil 322 are respectively arranged opposite to two adjacent vertical sides of the stabilization magnet 31.

[0058] Furthermore, the first anti-shake coil 321 and the second anti-shake coil 322 are relatively stationary, while the anti-shake magnet 31 moves relative to both under the action of driving force.

[0059] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the motor 100 includes two sets of image stabilization drive structures 30. One set of image stabilization drive structures 30 is located on the first axis C1 direction side of the optical lens 200, and its image stabilization coil group 32 is used to generate a driving force on the image stabilization magnet 31 along the first axis C1 direction. The other set of image stabilization drive structures 30 is located on the second axis C2 direction side of the optical lens 200, and its image stabilization coil group 32 is used to generate a driving force on the image stabilization magnet 31 along the second axis C2 direction. The first axis C1 direction and the second axis C2 direction are both perpendicular to the optical axis O direction and are perpendicular to each other. The first axis C1 and the second axis C2 both pass through the optical axis O of the optical lens 200.

[0060] By arranging a set of anti-shake drive structures 30 along two mutually perpendicular horizontal directions that are also perpendicular to the optical axis O (i.e., the first axis C1 direction and the second axis C2 direction), independent driving and control in two orthogonal directions are achieved. This simultaneously enhances the driving force and expands the driving stroke in the two orthogonal directions, thereby improving the optical image stabilization system's ability to compensate for complex and rapid shaking situations and its overall anti-shake effect.

[0061] In one specific embodiment, the motor 100 includes a first anti-shake drive structure 30a and a second anti-shake drive structure 30b respectively disposed on two adjacent sides of the anti-shake carrier 20. Accordingly, the anti-shake magnet 31 and the first anti-shake coil 321 of the first anti-shake drive structure 30a are disposed opposite each other along the first axis C1. When the first anti-shake coil 321 is energized, it drives the anti-shake magnet 31 to move along the first axis. That is, the anti-shake magnet 31 moves relative to the first anti-shake coil 321 along the relative arrangement direction of the anti-shake magnet 31 and the first anti-shake coil 321. Correspondingly, the anti-shake carrier 20, on which the anti-shake magnet 31 is fixed, moves relative to the base 10, on which the first anti-shake coil 321 is fixed, along the first axis C1.

[0062] The anti-shake magnet 31 and the first anti-shake coil 321 of the second anti-shake drive structure 30b are arranged opposite each other along the second axis C2. When the first anti-shake coil 321 is energized, it drives the anti-shake magnet 31 to move along the second axis. That is, the anti-shake magnet 31 moves relative to the first anti-shake coil 321 along the relative arrangement direction of the anti-shake magnet 31 and the first anti-shake coil 321. Correspondingly, the anti-shake carrier 20, on which the anti-shake magnet 31 is fixed, moves relative to the base 10, on which the first anti-shake coil 321 is fixed, along the second axis.

[0063] Of course, if space and cost allow, the motor 100 may also include more sets of anti-shake drive structures 30, some of which are used to drive the anti-shake carrier 20 to move along the first axis C1, and others are used to drive the anti-shake carrier 20 to move along the second axis C2.

[0064] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the image stabilization drive structure 30 includes at least two first image stabilization coils 321 spaced apart along the side direction, and / or at least two second image stabilization coils 322 spaced apart along the side direction, wherein the side direction is perpendicular to the relative setting direction and the optical axis direction.

[0065] By arranging at least two first anti-shake coils 321 and / or at least two second anti-shake coils 322 at intervals along the side, the driving mode of the anti-shake drive structure 30 can be controlled by controlling the energizing direction and current magnitude of each coil. For example, translational jitter is counteracted by each coil exerting force in the same direction, while tilt / angular jitter is compensated by each coil exerting force in opposite directions. This allows the anti-shake drive structure 30 to independently cope with jitter interference of different natures.

[0066] Specifically, in some embodiments, the image stabilization drive structure 30 includes two first image stabilization coils 321 symmetrically arranged around the drive axis, and / or two second image stabilization coils 322 symmetrically arranged around the drive axis, wherein the drive axis is a virtual axis passing through the optical axis of the optical lens 200 along a relatively arranged direction.

[0067] In this embodiment, taking the anti-shake magnet 31 corresponding to a symmetrically arranged set of coils (e.g., two symmetrical first anti-shake coils 321) with the same magnetic pole direction as an example, when the set of coils is energized with the same current, the driving force they exert on the anti-shake magnet 31 is in the same direction, thereby driving the anti-shake carrier 20 to translate along the relative setting direction or suppressing the translation along the relative setting direction caused by external force.

[0068] When the coils are energized with a reverse current, the driving forces they exert on the anti-shake magnet 31 are opposite in direction, thereby driving the anti-shake carrier 20 to rotate around the optical axis O or suppressing the rotation around the optical axis O caused by external force.

[0069] Similarly, when the magnetic poles of the anti-shake magnets 31 corresponding to a symmetrically arranged set of coils (e.g., two symmetrical first anti-shake coils 321) are opposite, the coils can be driven to rotate around the optical axis O or suppress rotation around the optical axis O caused by external force when the same current is applied to the set of coils, while they can be driven to translate along the relative setting direction or suppress translation along the relative setting direction caused by external force when the opposite current is applied to the set of coils.

[0070] In some other embodiments, the image stabilization drive structure 30 includes two first image stabilization coils 321 asymmetrically arranged around the drive shaft, and / or two second image stabilization coils 322 symmetrically arranged around the drive shaft, or the image stabilization drive structure 30 includes more than two first image stabilization coils 321 spaced apart along the side direction, and / or more than two second image stabilization coils 322 spaced apart along the side direction.

[0071] As long as the different motion modes of the anti-shake drive structure can be achieved by controlling the energizing direction and / or current magnitude of each coil, this application will not provide specific examples here.

[0072] In addition, the magnitude and direction of the driving force generated by each first image stabilization coil 321 can be changed by altering the size, structure, or charge of the first image stabilization coil 321, thereby enabling the switching of different driving modes.

[0073] Please refer to Figure 3As shown, in some embodiments, the first anti-shake coil and the second anti-shake coil of each sub-coil group are positioned corresponding to each other along the side direction; wherein, the side direction is perpendicular to the relative setting direction and the optical axis direction. Taking the anti-shake drive structure 30, whose relative setting direction is parallel to the first axis C1, as an example, its side direction is parallel to the second axis C2.

[0074] Each sub-coil group 32a acts as an independent driving unit, with its first stabilization coil 321 and second stabilization coil 322 corresponding along the side direction, enabling synergistic driving and improving driving force and driving stroke. In addition, the multiple sub-coil groups 32a are spaced apart along the side direction, ensuring that the driving force is evenly distributed along the side direction of the stabilization magnet 31, thereby making the movement of the stabilization carrier 20 smoother and more stable, reducing the possible distortion or shaking of the optical lens 200 during the stabilization process, and improving stabilization accuracy and image stability.

[0075] Correspondingly, the layout of multiple sub-coil groups 32a allows the driving force to be increased by increasing the number of driving units rather than increasing the size of a single coil or magnet, thereby improving the space utilization inside the motor 100. Under the same volume constraints, the driving force and driving stroke of the motor 100 can be effectively increased, while also improving the design flexibility of the motor 100 and making it easier to adapt to camera modules of different sizes.

[0076] In one specific embodiment, the first anti-shake driving structure 30a includes two sub-coil groups 32a spaced apart along the second axis C2, and the second anti-shake driving structure 30b includes two sub-coil groups 32a spaced along the first axis C1.

[0077] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the first image stabilization coil 321 includes a first adjacent segment 3211, a first distal segment 3212, and two first connecting segments 3213 connecting the two. The first adjacent segment 3211 is parallel to the first distal segment 3212, and the first adjacent segment 3211 is located on one side of the second image stabilization coil 322, which is close to the same sub-coil group 32a. The second image stabilization coil 322 includes a second adjacent segment 3221, a second distal segment 3222, and two second connecting segments 3223 connecting the two. 221 is parallel to the second far side segment 3222, and the second adjacent segment 3221 is located on one side close to the first anti-shake coil 321 of the same sub-coil group 32a; the current direction of the first adjacent segment 3211 and the second adjacent segment 3221 of the same sub-coil group 32a is the same, so that the first driving force of the first anti-shake coil 321 acting on the anti-shake magnet 31 and the second driving force of the second anti-shake coil 322 acting on the anti-shake magnet 31 are in the same direction as the setting direction of the first anti-shake coil 321 and the anti-shake magnet 31, thereby increasing the driving force.

[0078] In other words, in the first image stabilization coil 321, the first adjacent segment 3211 is closer to the second image stabilization coil 322 along the optical axis O than the first far segment 3212; in the second image stabilization coil 322, the second adjacent segment 3221 is closer to the first image stabilization coil 321 along the relative setting direction than the second far segment 3222. That is, the first adjacent segment 3211 and the second adjacent segment 3221 are arranged close to each other, and the first far segment 3212 and the second far segment 3222 are located at both ends along the optical axis O and the relative setting direction, respectively.

[0079] In this application, the current directions of the closely spaced first adjacent segments 3211 and second adjacent segments 3221 are the same to ensure that the first anti-shake coil 321 and the second anti-shake coil 322 of the same sub-coil group 32a have the same orientation as the driving force generated by the anti-shake magnet 31 along the relative arrangement direction, thereby improving the overall driving force. Correspondingly, the current directions between the first and third far segments are the same. Further, in this application, the first adjacent segment 3211 and the second adjacent segment 3221 are parallel.

[0080] Please refer to Figure 2 As shown, in some embodiments, the anti-shake magnet 31 includes a plurality of anti-shake sub-magnets 311 distributed along the side direction. Each sub-coil group 32a corresponds to one anti-shake sub-magnet 311 in the side direction. The anti-shake sub-magnet 311 corresponding to the sub-coil group 32a has two magnetic poles distributed in opposite directions, and the magnetic pole directions of the two anti-shake magnets 311 corresponding to two adjacent sub-coil groups 32a are opposite. It should be understood that in one example, the plurality of anti-shake magnets 311 can be fixed together by magnetic attraction, bonding, integral molding, etc.; in another example, the plurality of anti-shake magnets 311 can also be arranged at intervals.

[0081] Each anti-shake sub-magnet 311 has only two magnetic poles in the relative setting direction, ensuring that the sub-coil group 32a acting on this anti-shake sub-magnet 311 can generate driving force in that direction most effectively. The magnetic poles of the two anti-shake sub-magnets 311 corresponding to two adjacent sub-coil groups 32a are opposite, which ensures that the anti-shake magnet 311 only acts on its corresponding sub-coil group 32a, reducing the interference of its magnetic field on other sub-coil groups 32a. This allows multiple drive units to work in parallel and be controlled independently. The relative setting directions they generate can be the same or opposite as needed (by controlling the current direction in different sub-coil groups 32a), which helps to enhance driving force and optimize driving effect.

[0082] In some embodiments, the anti-shake drive structure 30 includes two sub-coil groups 32a, which correspond to two anti-shake sub-magnets 311 along the side direction. One of the anti-shake sub-magnets 311 has two opposite magnetic poles along the opposite arrangement direction, with the magnetic pole near the optical axis O being N and the magnetic pole away from the optical axis O being S. The other anti-shake sub-magnet 311 has the magnetic pole near the optical axis O being S and the magnetic pole away from the optical axis O being N along the opposite arrangement direction.

[0083] Based on this, when the two sub-coil groups 32a drive the anti-shake magnet 31 to move in the relative setting direction, if the current directions of the two sub-coil groups 32a are opposite, that is, the current directions of the two first anti-shake coils 321 are opposite and the current directions of the two second anti-shake coils 322 are opposite, then the driving force between the two sub-coil groups 32a and the anti-shake magnet 31 is in the same direction, and can be superimposed to drive or suppress the translation of the anti-shake carrier 20 in the relative setting direction; conversely, if the current directions of the two sub-coil groups 32a are the same, then the relative setting direction between the two sub-coil groups 32a and the anti-shake magnet 31 is opposite, thereby driving or suppressing the rotation of the anti-shake carrier 20 around the optical axis O.

[0084] Furthermore, in some embodiments, the motor 100 includes two sets of anti-shake drive structures 30 respectively disposed on two adjacent sides of the anti-shake carrier 20. The two anti-shake magnets 31 in the two sets of anti-shake drive structures 30 have opposite magnetic pole directions for two adjacent anti-shake sub-magnets 311. That is, the magnetic pole of one anti-shake sub-magnet 311 is N along its relative setting direction near the optical axis O, and the magnetic pole of the other anti-shake magnet 311 is S along its relative setting direction near the optical axis O.

[0085] In some embodiments, the number of anti-shake sub-magnets 311 corresponds one-to-one with the number of sub-coil groups 32a, thereby enabling independent driving in conjunction with each sub-coil group 32a.

[0086] In some other embodiments, the number of anti-shake sub-magnets 311 is greater than the number of sub-coil groups 32a to meet different driving requirements. For example, the anti-shake magnets 31 can be Halbach magnets. Taking the anti-shake drive structure 30 including two sub-coil groups 32a as an example, the anti-shake magnets 31 are divided into three anti-shake sub-magnets 311 along the side direction. The magnetic poles of the two anti-shake sub-magnets 311 corresponding to the sub-coil groups 32a are distributed in opposite directions, and the two magnetic poles of the third anti-shake sub-magnet 311 in the middle are distributed along the side direction. Further, any magnetic pole of the third anti-shake sub-magnet 311 is opposite to the magnetic pole of the adjacent anti-shake sub-magnet 311 on the side closer to the first anti-shake coil 321. This magnetic pole arrangement helps to enhance the magnetic field strength of the anti-shake magnets 31 acting on the first anti-shake coil 321.

[0087] Please refer to Figure 5 As shown, in some embodiments, the anti-shake magnet 31 has two magnetic poles, and the two magnetic poles are distributed in opposite directions. That is, the anti-shake magnet 31 is a unipolar magnet, and using a unipolar magnet helps to reduce motor costs.

[0088] In some embodiments, the image stabilization drive structure 30 includes two sub-coil groups 32a, the positions of which correspond to the image stabilization magnet 31 along the lateral direction, to ensure that the image stabilization magnet 31 can be driven by both sub-coil groups 32a simultaneously, thereby increasing the driving force. Further, the image stabilization magnet 31 has two opposite magnetic poles along the opposite arrangement direction; for example, the magnetic pole closer to the optical axis O is N, and the magnetic pole further away from the optical axis O is S. Based on this, when the two sub-coil groups 32a drive the anti-shake magnet 31 to move along the relative setting direction, if the current directions of the two sub-coil groups 32a are opposite, that is, the current directions of the two first anti-shake coils 321 are opposite and the current directions of the two second anti-shake coils 322 are opposite, then the relative setting directions between the two sub-coil groups 32a and the anti-shake magnet 31 are opposite, thereby driving or suppressing the rotation of the anti-shake carrier 20 around the optical axis O; conversely, when the current directions of the two sub-coil groups 32a are the same, the relative setting directions between the two sub-coil groups 32a and the anti-shake magnet 31 are opposite, and they can be superimposed to drive or suppress the translation of the anti-shake carrier 20 along the relative setting direction.

[0089] In some embodiments, the projection of the first stabilization coil 321 along the relative setting direction is completely located within the stabilization magnet 31, so as to increase the driving force of the first stabilization coil 321 on the stabilization magnet 31.

[0090] In one specific embodiment, the motor 100 includes two sets of anti-shake drive structures 30 respectively disposed on two adjacent sides of the anti-shake carrier 20, and the magnetic poles of the two anti-shake magnets 31 of the two sets of anti-shake drive structures 30 are arranged perpendicular to each other.

[0091] Please refer to Figure 6 As shown, in some embodiments, when the image stabilization magnet 31 is located at an extreme position away from the optical axis O of the optical lens 200 along the relative setting direction, the center line M1 of the image stabilization magnet is located on the side away from the optical axis O along the relative setting direction of the center line M2 of the second coil. Here, the center line M1 of the image stabilization magnet is the center line of the image stabilization magnet 31 along the relative setting direction, and the center line M2 of the second coil is the center line of the second image stabilization coil 322 along the relative setting direction.

[0092] When the image stabilizing magnet 31 is located at the extreme position away from the optical axis O of the optical lens 200 along the relative setting direction, that is, when the distance between the image stabilizing magnet 31 and the first image stabilizing coil 321 along the relative setting direction is the closest, by limiting the center line M1 of the image stabilizing magnet to be located on the side of the center line M2 of the second coil away from the optical axis O along the relative setting direction, that is, the center line M2 of the second coil is closer to the optical axis O than the center line M1 of the image stabilizing magnet, the driving force attenuated by the image stabilizing magnet 31 due to being far away from the first image stabilizing coil 321 can be supplemented by the second image stabilizing coil 322.

[0093] Specifically, when the anti-shake magnet 31 moves away from the first anti-shake coil 321 along the driving direction, the driving force between the anti-shake magnet 31 and the first anti-shake coil 321 will decrease, and the greater the distance, the more severe the decrease in driving force. Therefore, by making the center line M2 of the second coil closer to the optical axis O than the center line M1 of the anti-shake magnet, the driving force can be supplemented after the distance between the anti-shake magnet 31 and the first anti-shake coil 321 is large, thereby improving the driving force supplementation effect of the second anti-shake coil 322.

[0094] In some embodiments, in each group of anti-shake drive structures 30, within the range of motion of the anti-shake magnet 31 along the relative setting direction, the projection of the anti-shake magnet 31 along the optical axis O direction always at least partially overlaps with the second anti-shake coil 322. It should be understood that during the anti-shake process, the anti-shake magnet 31 moves along the relative setting direction, and the distance between the anti-shake magnet 31 and the first anti-shake coil 321 changes, thus the magnitude of the driving force between them also changes with the distance. In particular, when the distance between the anti-shake magnet 31 and the first anti-shake coil 321 is large, the driving force will be significantly insufficient. Therefore, in this application, by further providing a second anti-shake coil 322 whose projection along the optical axis O direction always at least partially overlaps with the anti-shake magnet 31, it can be used to supplement and enhance the anti-shake driving force.

[0095] Please refer to Figure 7 As shown, in some embodiments, when the anti-shake magnet 31 is located at its extreme position near the optical axis O along the relative setting direction, the centerline of the anti-shake magnet is located between the centerline of the second coil and the side surface of the second anti-shake coil 322 near the optical axis O along the relative setting direction. This ensures that the anti-shake magnet 31 is always subject to supplementary driving force provided by the second anti-shake coil 322 throughout its entire stroke along the relative setting direction.

[0096] Please combine Figure 4 as well as Figure 8As shown, in some embodiments, the second image stabilization coil 322 includes a second adjacent segment 3221, a second far-side segment 3222, and two second connecting segments 3223 connecting the two. The second adjacent segment 3221 is parallel to the second far-side segment 3222, and the second adjacent segment 3221 is located on one side of the first image stabilization coil 321 in the same sub-coil group 32a. The width of the second far-side segment 3222 along the relative setting direction is greater than that of the second adjacent segment 3221.

[0097] When the distance between the anti-shake magnet 31 and the first anti-shake coil 321 is large, the driving force of the first anti-shake coil 321 on the anti-shake magnet 31 is attenuated more significantly. Also, since the second adjacent segment 3221 is located closer to the first anti-shake coil 321 along the relative setting direction, and the second far segment 3222 is located farther from the first anti-shake coil 321 along the relative setting direction, the required additional anti-shake driving force is relatively small when the anti-shake magnet 31 is located at the corresponding position of the second adjacent segment 3221 along the relative setting direction, and the required additional anti-shake driving force is relatively large when it is located at the corresponding position of the second far segment 3222 along the relative setting direction.

[0098] In this application, the width of the second far segment 3222 along the relative setting direction is set to be greater than that of the second adjacent segment 3221. That is, when the total width of the second anti-shake coil 322 along the relative setting direction is fixed, the widths of the second far segment 3222 and the second adjacent segment 3221 are adjusted to reduce the driving force supplemented when the anti-shake magnet 31 is close to the first anti-shake coil 321 and increase the driving force supplemented when the anti-shake magnet 31 is far away from the first anti-shake coil 321. This improves the stability of the driving force received by the anti-shake magnet 31 throughout the entire motion stroke and enhances the anti-shake stability.

[0099] Please combine Figure 8 as well as Figure 9 As shown, in some embodiments, the second image stabilization coil 322 has a notch 322a on the side of the optical lens 200 near the optical axis O along the relative setting direction to avoid the optical lens 200, so as to reduce the space occupied by the second image stabilization coil 322 along the relative setting direction and improve the space utilization rate within the motor 100.

[0100] Please combine Figure 1 as well as Figure 9 As shown, in some embodiments, the image stabilization coil assembly 32 further includes a substrate 323, to which the second image stabilization coil 322 is fixed. The second image stabilization coil 322 is fixed relative to the base 10 by the substrate 323, so that the second image stabilization coil 322 and the image stabilization magnet 31 can be arranged opposite each other along the optical axis O.

[0101] Specifically, in some embodiments, the second anti-shake coil 322 and the substrate 323 are FPC-Coil, and the second anti-shake coil 322 is a planar coil, which is directly fabricated on the substrate 323 (printed circuit board) through etching and other steps. In this way, on the one hand, the overall thickness of the second anti-shake coil 322 and the substrate 323 can be reduced, and on the other hand, support and electrical conduction are provided for the planar coil second anti-shake coil 322.

[0102] In some other embodiments, the second image stabilization coil 322 is a conventional wound coil, and the second image stabilization coil 322 is fixed to the substrate 323 by means of adhesive bonding or other methods, thereby the substrate 323 provides support for the second image stabilization coil 322. Furthermore, the second image stabilization coil 322 can also be electrically connected to the substrate 323, so that the substrate 323 further provides electrical conduction for the second image stabilization coil 322.

[0103] Furthermore, in some embodiments, the notch 322a extends through the second anti-shake coil 322 and the substrate 323 along the optical axis O.

[0104] Please refer to Figure 10 As shown, the anti-shake drive structure 30 also includes an anti-shake position sensing element 34. The anti-shake position sensing element 34 is fixed to the base 10 and the anti-shake magnet 31. The anti-shake position sensing element 34 obtains the position change information of the anti-shake magnet 31 in the direction perpendicular to the optical axis O, and then obtains the position change information of the anti-shake carrier 20 relative to the base 10 in the direction perpendicular to the optical axis O.

[0105] Furthermore, in some embodiments, the image stabilization drive structure 30 includes two first image stabilization coils 321 spaced apart along the side direction, and the image stabilization position sensing element 34 is disposed between the two first image stabilization coils 321.

[0106] It is worth mentioning that after acquiring position change information, the stabilization position sensing element 34 controls the movement direction of the stabilization carrier 20 relative to the base by controlling the magnitude and direction of the current in the stabilization coil group 32. In this application, the first stabilization coil 321 and the second stabilization coil 322 are jointly controlled by the stabilization position sensing element 34.

[0107] Please refer to Figure 11 As shown, in some embodiments, the second image stabilization coil 322 includes a second adjacent segment 3221, a second far-side segment 3222, and two second connecting segments 3223 connecting the two. The second adjacent segment 3221 is parallel to the second far-side segment 3222, and the second adjacent segment 3221 is located on the side away from the optical axis O along the relative setting direction. The notch 322a is opened in the second far-side segment 3222, and the width of the second far-side segment 3222 along the relative setting direction is smaller than that of the second adjacent segment 3221.

[0108] Since the second far side segment 3222 is located on the side close to the optical axis O, the second far side segment 3222 is most likely to interfere with the optical lens 200 when the image stabilization carrier 20 and the optical lens 200 move in the relative setting direction. To address this, opening a notch 322a on the second far side segment 3222 can effectively avoid interference and reduce the size requirement of the motor 100 in the relative setting direction.

[0109] Furthermore, creating the notch 322a would prevent the effective length of the second distal segment 3222 from being guaranteed. In other words, compared to the second adjacent segment 3221 and the second distal segment 3222, which have the same width along the relative setting direction, the second distal segment 3222, due to the need for the notch 322a, has a shorter effective length, and therefore generates less supplementary driving force. Thus, by limiting the width of the second adjacent segment 3221 along the relative setting direction to be greater than that of the second distal segment 3222, the supplementary driving force of the second image stabilization coil 322 can be increased as much as possible along the relative setting direction using the longer second adjacent segment 3221, thereby better supplementing and enhancing the image stabilization driving force.

[0110] Specifically, in some embodiments, the width of the conductor in the second adjacent segment 3221 along the relative setting direction is greater than the width of the conductor in the second distant segment 3222, thereby making the width of the second adjacent segment 3221 along the relative setting direction greater than that of the second distant segment 3222. Of course, in other embodiments, the width of the second adjacent segment 3221 can also be increased by increasing the spacing between the conductors and / or the number of conductors in the second adjacent segment 3221, which will not be exemplified here.

[0111] Please combine Figure 1 as well as Figure 12 As shown, in some embodiments, the motor 100 further includes a focusing carrier 40 movably disposed on the image stabilization carrier 20 along the optical axis O. The focusing carrier 40 includes a main body 41 and a protrusion 42 protruding from the main body 41 along the optical axis O. The main body 41 and the protrusion 42 are permeated along the optical axis O by a lens hole 43 for accommodating the optical lens 200, thereby indirectly supporting the optical lens 200 through the image stabilization carrier 20. The second image stabilization coil 322 is disposed at a distance from the main body 41 along the optical axis O. The projection of the second image stabilization coil 322 along the optical axis O at least partially overlaps with the main body 41, and the second image stabilization coil 322 is disposed at a distance from the protrusion 42 along a relatively disposed direction.

[0112] A protrusion 42 is provided on the basis of the main body 41, and the lens hole 43 passing through the main body 41 and the protrusion 42 is used to accommodate the optical lens 200. This can increase the contact area between the focusing carrier 40 and the optical lens 200 along the optical axis O, and increase the fixation reliability of the optical lens 200. On this basis, the projection of the second image stabilization coil 322 along the optical axis O at least partially overlaps with the main body 41. By partially interleaving the second image stabilization coil 322 with the main body 41, the space inside the motor 100 along the optical axis O can be fully utilized, thereby reducing the size requirements of the motor 100 along the relative setting direction.

[0113] Furthermore, the second image stabilization coil 322 is spaced apart from the main body 41 along the optical axis O, and the second image stabilization coil 322 is spaced apart from the protrusion 42 along the opposite setting direction, which can reserve a corresponding gap between the two to avoid interference between the focusing carrier 40 and the second image stabilization coil 322 when the focusing carrier 40 moves along the optical axis O or moves with the image stabilization carrier 20 along the opposite setting direction.

[0114] Please combine Figure 9 as well as Figure 12 As shown, in some embodiments, the protrusion 42 includes a contoured section 421, which is located between the optical lens 200 and the second image stabilization coil 322 along a relatively disposed direction. The inner and outer walls of the contoured section 421 are both contoured to the outer peripheral surface of the optical lens 200, and the notch 322a is contoured to the outer wall of the contoured section 421.

[0115] By setting a contoured section 421 whose inner and outer walls are both contoured to the outer periphery of the optical lens 200, and by contouring the notch 322a to the outer wall of the contoured section 421, the thickness of the protrusion 42 (i.e., the contoured section 421) between the optical lens 200 and the second image stabilization coil 322 can be reduced, thereby improving the space utilization rate inside the motor 100 along the relative setting direction and further reducing the size requirements of the motor 100 along the relative setting direction.

[0116] Specifically, the protrusion 42 is square in shape, and the contoured section 421 protrudes from the square edge of the protrusion 42 along the opposite orientation.

[0117] More specifically, each set of anti-shake drive structure 30 includes two second anti-shake coils 322 spaced apart along the side direction. The two second anti-shake coils 322 are symmetrically arranged with respect to the drive shaft. The second far side segment 3222 of the two second anti-shake coils 322 has a notch 322a on the side of the drive shaft along the side direction. The two notches 322a together form an arc-shaped clearance space.

[0118] Please combine Figure 1 as well as Figure 13As shown, in some embodiments, the motor 100 further includes a cover 60, which covers the base 10 to form an accommodating space inside both. The first anti-shake coil 321 is fixed to the base 10, and the second anti-shake coil 322 is located on one or both sides of the anti-shake carrier 20 along the optical axis O and is fixed to the base 10 and / or the cover 60.

[0119] Specifically, in some embodiments, the anti-shake magnet 31 is embedded in the anti-shake carrier 20, the first anti-shake coil 321 is fixed to the side wall of the base 10 and is disposed opposite to the outer side of the anti-shake magnet 31; the second anti-shake coil 322 is fixed to the top surface of the base 10 or the top cover 60, so that the second anti-shake coil 322 is suspended above the anti-shake magnet 31 and is disposed opposite to the top side of the anti-shake magnet 31.

[0120] This should be understandable; please refer to it. Figure 14 As shown, in some other embodiments, the second stabilization coil 322 can also be disposed opposite to the bottom surface of the stabilization magnet 31. In this case, the second stabilization coil 322 is suspended below the stabilization magnet 31. That is, the second stabilization coil 322 only needs to be suspended on the side of the stabilization magnet 31 along the optical axis O and disposed opposite to the stabilization magnet 31.

[0121] Furthermore, in some other embodiments, the top and bottom surfaces of the anti-shake magnet 31 are each suspended by a second anti-shake coil 322 corresponding to the anti-shake magnet 31, so as to further increase the supplementary driving force on the anti-shake magnet 31.

[0122] Please combine Figure 1 , Figure 2 as well as Figure 15 As shown, in some embodiments, the motor 100 further includes a stabilizing support 51 located between the base 10 and the stabilizing carrier 20 along the optical axis O. The stabilizing support 51 is movably disposed on the base 10 along the first axis C1, and the stabilizing carrier 20 is movably disposed on the stabilizing support 51 along the second axis C2. The second stabilizing coil 322 is disposed on the side of the stabilizing carrier 20 away from the base 10 and fixed to the top of the base 10 or the upper cover 60. The first axis C1 and the second axis C2 are both perpendicular to the optical axis O and are perpendicular to each other.

[0123] It is worth mentioning that, precisely because the anti-shake support 51 is located at the bottom of the anti-shake carrier 20, on the one hand, if the second anti-shake coil 322 is directly placed between the anti-shake carrier 20 and the anti-shake support 51 along the optical axis O, the second anti-shake coil 322 is prone to interference with the anti-shake support 51, which is not feasible due to space constraints; on the other hand, the presence of the anti-shake support 51 results in a relatively large distance between the base 10 and the anti-shake carrier 20. If the second anti-shake coil 322 is placed between the anti-shake support 51 and the base 10 along the optical axis O, the supplementary driving force will be insignificant due to the excessive distance between the second anti-shake coil 322 and the anti-shake magnet 31.

[0124] Therefore, in this application, by placing the second anti-shake coil 322 above the anti-shake magnet 31, the distance between the second anti-shake coil 322 and the anti-shake magnet 31 can be set closer, and the driving force between the second anti-shake coil 322 and the anti-shake magnet 31 can be greater.

[0125] Please combine Figure 15 as well as Figure 16 As shown, in some embodiments, the motor 100 further includes a stabilization support assembly 50, which includes a stabilization support member 51, at least three first stabilization balls 52, and at least three second stabilization balls 53. Each first stabilization ball 52 is clamped between the stabilization carrier 20 and the stabilization support member 51 along the optical axis O, and each second stabilization ball 53 is clamped between the stabilization support member 51 and the base 10 along the optical axis O, so as to reduce the friction between the stabilization carrier 20, the stabilization support member 51, and the base 10 through the stabilization balls.

[0126] Furthermore, the top surface of the anti-shake support 51 is provided with a plurality of first anti-shake ball grooves 511 corresponding to each of the first anti-shake balls 52, and the bottom surface is provided with a plurality of second anti-shake ball grooves 512 corresponding to each of the second anti-shake balls 53. The bottom surface of the anti-shake carrier 20 is provided with a plurality of third anti-shake ball grooves corresponding to each of the first anti-shake balls 52, and the top surface of the base 10 is provided with a plurality of fourth anti-shake ball grooves corresponding to each of the second anti-shake balls 53. At least one of the first anti-shake ball grooves 511 and the third anti-shake ball grooves extends along the first axis C1, and at least one of the second anti-shake ball grooves 512 and the fourth anti-shake ball grooves extends along the second axis C2, so that the anti-shake support 51 can move relative to the base 10 along the second axis C2, and the anti-shake carrier 20 can move relative to the anti-shake support 51 along the first axis C1, so as to play a guiding role through the anti-shake ball grooves.

[0127] Furthermore, the anti-shake support 51 is L-shaped, with three first anti-shake ball grooves 511 extending along the first axis C1 on the top surface of the L-shape and three second anti-shake ball grooves 512 extending along the second axis C2 on the bottom surface, so as to minimize the space occupied by the anti-shake support 51.

[0128] Please combine Figure 10 as well as Figure 17 In some embodiments, the anti-shake support assembly 50 further includes an anti-shake magnetic member 54, which is fixed to the base 10 and corresponds to the anti-shake magnet 31 along the optical axis O. The anti-shake magnetic member 54 and the anti-shake magnet 31 are magnetically attracted to the anti-shake carrier 20 and the anti-shake support member 51 is clamped between the anti-shake carrier 20 and the base 10.

[0129] Specifically, in some embodiments, the motor 100 includes two sets of anti-shake drive structures 30 respectively disposed on two adjacent sides of the anti-shake carrier 20, and the base 10 is fixed with two anti-shake magnetic components 54 respectively disposed below the anti-shake magnets 31 of the two sets of anti-shake drive structures 30.

[0130] Please refer to Figure 17 As shown, the motor 100 also includes a conductive insert assembly 70, which includes multiple conductive inserts 71. The conductive insert assembly 70 is embedded in the base 10 to enable the base 10 to have electrical functions, making the base 10 an electrical base. The anti-shake position sensing element 34, the first anti-shake coil 321, and the second anti-shake coil 322 are all electrically connected to the conductive insert assembly 70, thereby enabling the motor 100 of this application to provide electrical conduction to the anti-shake position sensing element 34, the first anti-shake coil 321, and the second anti-shake coil 322 through the conductive insert assembly 70.

[0131] Specifically, the conductive insert assembly 70 extends from the base 10, allowing it to be electrically connected to the second anti-shake coil 322 via soldering. Multiple electrical connection points are exposed on the side wall of the base 10 of the conductive insert assembly 70, and the anti-shake position sensing element 34 and the first anti-shake coil 321 are electrically connected to these exposed connection points. Furthermore, the motor 100 is also electrically connected to the photosensitive module 300 via the conductive insert assembly 70.

[0132] Please combine Figure 1 as well as Figure 18As shown, in some embodiments, the motor 100 further includes a focusing drive assembly 80 for driving the focusing carrier 40 to move relative to the image stabilization carrier 20 along the optical axis O. The focusing drive assembly 80 includes a focusing magnet 81 and a focusing coil 82, wherein the focusing magnet 81 is fixed to the side wall of the focusing carrier 40, and the focusing coil 82 is fixed to the image stabilization carrier 20 and is opposite to the focusing magnet 81 in a direction perpendicular to the optical axis O. When the focusing coil 82 is energized, it drives the focusing magnet 81 and the focusing carrier 40, to move relative to the image stabilization carrier 20 along the optical axis O.

[0133] In some implementations, the focusing magnet 81 and one of the image stabilizing magnets 31 are respectively disposed on both sides of the optical lens 200 to reduce the size of the motor 100 along the relative placement direction of the image stabilizing magnet 31.

[0134] Furthermore, to enhance the focusing driving force of the motor 100, the focusing magnet 81 can be a Halbach magnet. Specifically, the focusing magnet 81 includes three focusing sub-magnets 811 stacked along the optical axis, which are designated as a first sub-magnet, a second sub-magnet, and a third sub-magnet from top to bottom. The magnetic poles of the first and third sub-magnets are opposite, and the magnetic pole direction of the second sub-magnet is perpendicular to that of either the first or third sub-magnet. Further, on the side of the focusing magnet 81 facing the focusing coil 82, the two adjacent magnetic poles of the second sub-magnet are opposite to those of the first sub-magnet, and the two adjacent magnetic poles of the second and third sub-magnets are also opposite. This magnetic pole arrangement helps to enhance the magnetic field strength exerted by the focusing magnet 81 on the focusing coil 82.

[0135] Please combine Figure 1 as well as Figure 19 As shown, the focusing drive assembly 80 also includes a focusing circuit board 83, which is attached to the outer side of the image stabilization carrier 20. The image stabilization carrier 20 has an opening corresponding to the focusing circuit board 83, so that the focusing coil 82 is adapted to be accommodated in the opening of the image stabilization carrier 20 and fixed to the focusing circuit board 83. The focusing coil 82 is fixed to the image stabilization carrier 20 through the focusing circuit board 83. The focusing coil 82 is electrically connected to the focusing circuit board 83.

[0136] Furthermore, in some embodiments, the focus drive assembly 80 further includes a focus position sensing element 84, which is fixed to and electrically connected to the focus circuit board 83. The focus position sensing element 84 is adapted to acquire information on the magnetic field change of the focus magnet 81, thereby acquiring information on the position change of the focus magnet 81 and the focus carrier 40 with the focus magnet 81 fixed relative to the image stabilization carrier 20, and then controlling the magnitude and direction of the current of the focus coil 82 to control the movement of the focus carrier 40 relative to the image stabilization carrier 20 along the optical axis O.

[0137] In some embodiments, the motor 100 further includes a focusing magnetic suction part 91 and a focusing support part 92. The focusing support part 92 is disposed between the focusing carrier 40 and the image stabilization carrier 20, and the focusing magnetic suction part 91 is fixed to the image stabilization carrier 20 and magnetically attracted to the focusing magnet 81, so that the focusing carrier 40 can be supported on the side wall of the image stabilization carrier 20, and the focusing carrier 40 and the image stabilization carrier 20 clamp the focusing support part 92.

[0138] Furthermore, in some embodiments, the focusing support 92 includes at least three focusing balls, which are respectively disposed on both sides of the focusing magnet 81 to stably support the focusing carrier 40. Even further, the focusing carrier 40 and the image stabilization carrier 20 are respectively provided with focusing ball grooves at the positions of the focusing balls to accommodate the focusing balls and prevent them from falling out. Two of the focusing ball grooves on one side have a guiding function and can be called guide grooves, having a V-shaped groove extending along the optical axis; the focusing ball grooves on the other side may only have a receiving function and can be called receiving grooves.

[0139] In one specific embodiment, the focusing support 92 includes five focusing balls, with three focusing balls on one side of the focusing magnet 81 and two focusing balls on the other side.

[0140] Please refer to Figure 19 As shown, in some embodiments, the focusing magnetic suction unit 91 includes a focusing magnetic suction piece 911, which is fixed to the focusing circuit board 83 and magnetically attracted to the focusing magnet 81. The focusing magnetic suction piece 911 is fixed to the image stabilization carrier 20 via the focusing circuit board 83, thereby supporting the focusing carrier 40 on the image stabilization carrier 20 by the magnetic attraction between the focusing magnetic suction piece 911 and the focusing magnet 81. The focusing magnetic suction piece 911 and the focusing coil 82 are disposed on both sides of the focusing circuit board 83, so that there is no interference between their arrangement.

[0141] In some embodiments, the focusing magnetic absorbing part 91 further includes a magnetically conductive reinforcing member 912, which is fixed to the focusing circuit board 83 and disposed in the middle of the focusing coil 82. The magnetically conductive reinforcing member 912 and the focusing magnetic absorbing sheet 911 are disposed on both sides of the focusing circuit board 83. The magnetically conductive reinforcing member 912 is made of a magnetically conductive material, and the magnetic attraction between the magnetically conductive reinforcing member 912 and the focusing magnet 81 is enhanced by the magnetic attraction between them. Furthermore, the magnetically conductive reinforcing member 912 is biased towards the guide groove, and the point of application of the resultant force of the magnetic attraction between the focusing magnetic absorbing part 91 and the focusing magnet 81 is biased towards the guide groove side. This can improve the stability of the focusing carrier 40 support and the linearity of the focusing drive.

[0142] Furthermore, the magnetic flux reinforcing element 912, disposed within the focusing coil 82, also contributes to enhancing the focusing driving force. It should be understood that the placement of the magnetic flux reinforcing element 912 modulates and optimizes the magnetic field of the focusing magnet 81, resulting in a stronger magnetic field being applied to the focusing coil 82.

[0143] Please combine Figure 1 as well as Figure 17 As shown, in some embodiments, the motor 100 further includes a top surface circuit board 110, which is disposed above the image stabilization carrier 20 and the base 10. The two ends of the top surface circuit board 110 are respectively fixed to the top surface of the image stabilization carrier 20 and the base 10, and are electrically connected to the focusing circuit board 83 on the image stabilization carrier 20 and the conductive insert assembly 70 embedded in the base 10, thereby making the focusing circuit board 83 electrically connected to the conductive insert assembly 70.

[0144] Furthermore, in some embodiments, the top surface circuit board 110 is an elastic circuit board, which includes a stator fixing part 111, a mover fixing part 112, and a connecting part 113. The stator fixing part 111 is connected to the conductive insert assembly 70 in the base 10, and the mover fixing part 112 is electrically connected to the focusing circuit board 83 on the image stabilization carrier 20. The stator fixing part 111 and the mover fixing part 112 are connected and conductive through the connecting part 113, and the connecting part 113 is elastic in the direction perpendicular to the optical axis O.

[0145] The focusing circuit board 83 on the image stabilization carrier 20 is connected to the conductive insert assembly 70 in the base 10 via a flexible circuit board. The connecting portion 113 is elastic in the direction perpendicular to the optical axis O, allowing the flexible circuit board to simultaneously perform both circuit connection and reset functions. Since the connecting portion 113 is elastic in the direction perpendicular to the optical axis O, it can deform and generate a restoring force as the image stabilization carrier 20 translates, driving the carrier 20 back to its initial position. Because no additional reset structure is required, no extra space is needed, meeting the requirements for miniaturization. Furthermore, the flexible circuit board is manufactured using circuit board technology, possessing good bending resistance and toughness, making it less prone to damage during assembly, transportation, and operation. Therefore, using a flexible circuit board for reset also improves the reliability of the motor 100.

[0146] In some other embodiments, the top circuit board 110 includes a stator fixing part 111, a mover fixing part 112, and a connecting part 113. The stator fixing part 111 is connected to the conductive insert assembly 70 in the base 10, and the mover fixing part 112 is electrically connected to the focusing circuit board 83 on the image stabilization carrier 20. The stator fixing part 111 and the mover fixing part 112 are connected and conductive through the connecting part 113, which is non-elastic in the direction perpendicular to the optical axis O. That is, the top circuit board 110 does not have an elastic reset function. It reduces the resistance caused by the movement of the image stabilization carrier 20 relative to the base 10 by extending and bending on the top surface, and reduces the resistance by reducing the elastic coefficient of the connecting part 113 in the direction perpendicular to the optical axis O.

[0147] In some embodiments, the second stabilization coil 322 is suspended above the stabilization carrier 20, and the top circuit board 110 is disposed above the second stabilization coil 322 to avoid interference caused by the placement of the second stabilization coil 322 on the top circuit board 110. Preferably, the connecting portion 113 of the top circuit board 110 is suspended above the second stabilization coil 322.

[0148] This application also provides a camera module, including an optical lens 200, a photosensitive module 300, and the aforementioned motor 100; the optical lens 200 is disposed on the image stabilization carrier 20 and is used to receive and emit light along the optical axis O; the photosensitive module 300 is disposed on the base 10 and is used to receive the light emitted from the optical lens 200 for imaging.

[0149] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0150] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A motor characterized by, The application relates to a motor (100) for driving an optical lens (200) to move along an optical axis direction, comprising: a base (10); a vibration-proof carrier (20) for carrying the optical lens (200) and movably arranged on the base (10) along a direction perpendicular to the optical axis direction of the optical lens (200); and at least one set of vibration-proof driving structures (30), each set of the vibration-proof driving structures comprising a vibration-proof magnet (31) arranged on the vibration-proof carrier (20) and at least one set of sub-coil groups (32a) fixed relative to the base (10), each sub-coil group (32a) comprising a first vibration-proof coil (321) and a second vibration-proof coil (322), the first vibration-proof coil (321) being arranged in a relative arrangement direction and spaced apart from the vibration-proof magnet (31), the second vibration-proof coil (322) being arranged in the optical axis direction and spaced apart from the vibration-proof magnet (31), the first vibration-proof coil (321) and the second vibration-proof coil (322) of the same sub-coil group (32a) generating driving force in the same direction along the relative arrangement direction on the vibration-proof magnet (31); wherein the relative arrangement direction is perpendicular to the optical axis direction.

2. The motor of claim 1, wherein The motor (100) comprises two sets of the vibration-proof driving structures (30), one set of the vibration-proof driving structures (30) is located on a first axis direction side of the optical lens (200), and the sub-coil group (32a) thereof is used for generating driving force in the first axis direction on the vibration-proof magnet (31), the other set of the vibration-proof driving structures (30) is located on a second axis direction side of the optical lens (200), and the sub-coil group (32a) thereof is used for generating driving force in the second axis direction on the vibration-proof magnet (31); wherein the first axis direction and the second axis direction are both perpendicular to the optical axis direction and perpendicular to each other.

3. The motor of claim 1, wherein The vibration-proof driving structure (30) comprises at least two first vibration-proof coils (321) arranged in a side direction and / or at least two second vibration-proof coils (322) arranged in the side direction, wherein the side direction is perpendicular to the relative arrangement direction and the optical axis direction.

4. The motor of claim 3, wherein The vibration-proof driving structure (30) comprises two first vibration-proof coils (321) symmetrically arranged around a driving axis and two second vibration-proof coils (322) symmetrically arranged around the driving axis, wherein the driving axis is a virtual axis passing through the optical axis of the optical lens (200) along the relative arrangement direction.

5. The motor of claim 1, wherein The positions of the first vibration-proof coil (321) and the second vibration-proof coil (322) of each sub-coil group (32a) in a side direction correspond to each other; wherein the side direction is perpendicular to the relative arrangement direction and the optical axis direction.

6. The motor of claim 1, wherein The first vibration-proof coil (321) comprises a first adjacent section (3211), a first far side section (3212) and two first connecting sections (3213) connecting the two sections, the first adjacent section (3211) is located on a side close to the second vibration-proof coil (322) of the same sub-coil group (32a) along the optical axis direction; The second anti-shake coil (322) comprises a second adjacent section (3221), a second far edge section (3222), and two second connecting sections (3223) connecting the two; the second adjacent section (3221) is located on the side close to the first anti-shake coil (321) of the same sub-coil group (32a) along the relative arrangement direction; The current direction of the first adjacent section (3211) and the second adjacent section (3221) of the same sub-coil group (32a) is the same.

7. The motor of claim 6, wherein The first adjacent section (3211) and the first far edge section (3212) of the first anti-shake coil (321) are parallel, and the second adjacent section (3221) and the second far edge section (3222) of the second anti-shake coil (322) are parallel.

8. The motor of claim 6, wherein The anti-shake magnet (31) comprises a plurality of anti-shake sub-magnets (311) distributed along the side direction; each sub-coil group (32a) corresponds to a position of an anti-shake sub-magnet (311) along the side direction; the anti-shake sub-magnet (311) corresponding to the sub-coil group (32a) has two poles distributed along the relative arrangement direction, and the poles of the two anti-shake sub-magnets (311) corresponding to the adjacent two sub-coil groups (32a) are opposite; wherein, the side direction is perpendicular to the relative arrangement direction and the optical axis direction.

9. The motor of claim 8, wherein, The second anti-shake coil (322) of the sub-coil group (32a) is located on the side away from the base (10) of the corresponding anti-shake sub-magnet (311) along the relative arrangement direction.

10. The motor of claim 6, wherein, The anti-shake magnet (31) has two poles, and the two poles are distributed along the relative arrangement direction.

11. The motor of claim 1, wherein When the anti-shake magnet (31) is located at the limit position away from the optical axis of the optical lens (200) along the relative arrangement direction, the anti-shake magnet center line is located on the side away from the optical axis of the second coil center line along the relative arrangement direction, wherein the anti-shake magnet center line is the center line of the anti-shake magnet (31) along the relative arrangement direction, and the second coil center line is the center line of the second anti-shake coil (322) along the relative arrangement direction.

12. The motor of claim 11, wherein, When the anti-shake magnet (31) is located at the limit position close to the optical axis along the relative arrangement direction, the anti-shake magnet center line is located between the side surface of the second coil center line and the second anti-shake coil (322) close to the optical axis along the relative arrangement direction.

13. The motor of claim 11, wherein, The second anti-shake coil (322) comprises a second adjacent section (3221), a second far edge section (3222), and two second connecting sections (3223) connecting the two; the second adjacent section (3221) is located on the side close to the first anti-shake coil (321) of the same sub-coil group (32a) along the relative arrangement direction; the width of the second far edge section (3222) along the relative arrangement direction is greater than that of the second adjacent section (3221).

14. The motor of claim 1, wherein The second anti-shake coil (322) is provided with a gap (322a) for avoiding the optical lens (200) on the side close to the optical axis of the optical lens (200) along the relative arrangement direction.

15. The motor of claim 14, wherein, The second anti-shake coil (322) comprises a second adjacent section (3221), a second far edge section (3222), and two second connecting sections (3223) connecting the two; the second adjacent section (3221) is located on the side away from the optical axis along the relative arrangement direction; the notch (322a) is arranged on the second far edge section (3222); and the width of the second far edge section (3222) along the relative arrangement direction is smaller than that of the second adjacent section (3221).

16. The motor of claim 14, wherein The motor (100) further comprises a focusing carrier (40) movably arranged on the anti-shake carrier (20) along the optical axis direction; the focusing carrier (40) comprises a main body (41) and a protruding part (42) protruding from the main body (41) along the optical axis direction; the main body (41) and the protruding part (42) are penetrated by a lens hole (43) for accommodating the optical lens (200); the second anti-shake coil (322) is arranged apart from the main body (41) along the optical axis direction; the projection of the second anti-shake coil (322) along the optical axis direction at least partially overlaps the main body (41); and the second anti-shake coil (322) is arranged apart from the protruding part (42) along the relative arrangement direction.

17. The motor of claim 16, wherein, The protruding part (42) comprises a profiling section (421); the profiling section (421) is located between the optical lens (200) and the second anti-shake coil (322) along the relative arrangement direction; the inner and outer walls of the profiling section (421) are designed in profile with the outer circumferential surface of the optical lens (200); and the notch (322a) is designed in profile with the outer wall of the profiling section (421).

18. The motor of claim 1, wherein, The motor (100) further comprises an upper cover (60); the upper cover (60) covers the base (10) to form an accommodating space in the interior of the two; the first anti-shake coil (321) is fixed with the base (10); and the second anti-shake coil (322) is fixed with the base (10) and / or the upper cover (60) on one side or both sides of the anti-shake carrier (20) along the optical axis direction.

19. The motor of claim 18, wherein, The motor (100) further comprises an anti-shake support (51) between the base (10) and the anti-shake carrier (20) along the optical axis direction; the anti-shake support (51) is movably arranged on the base (10) along a first axis direction; the anti-shake carrier (20) is movably arranged on the anti-shake support (51) along a second axis direction; and the second anti-shake coil (322) is arranged on the side of the anti-shake carrier (20) away from the base (10) and is fixed with the top of the base (10) or the upper cover (60); wherein the first axis direction and the second axis direction are both perpendicular to the optical axis direction and perpendicular to each other.

20. An image capture module, comprising: The motor (100) comprises an optical lens (200), a photosensitive module (300), and any one of the motors (100) in claims 1-19; The optical lens (200) is arranged on the anti-shake carrier (20) for receiving light along the optical axis direction and emitting; The light-sensing module (300) is arranged on the base (10) and is used for receiving light rays emitted by the optical lens (200) to form an image.

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