Camera module and electronic equipment
By adopting a rolling unit design in the camera module, and utilizing the cooperation between the ball bearings and the curved wall, the problem of unstable lens movement was solved, thereby improving the stability and efficiency of the lens mount and reducing manufacturing costs.
Patent Information
- Application Number
- CN202423298677.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing camera modules suffer from uneven stress and are prone to damage when the lens moves, resulting in low stability.
It adopts a rolling unit design, including multiple balls and curved walls. The balls roll against the lens mount, and the curved walls provide guidance. Stable movement of the lens mount is achieved through the cooperation of a drive magnet and a drive coil.
It improves the stability of mirror mount movement, reduces vibration during rolling, enhances the uniformity of force distribution and movement efficiency of mirror mount, simplifies installation, and reduces manufacturing costs.
Smart Images
Figure CN223809849U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of camera devices, in particular to a camera module and electronic equipment. BACKGROUND
[0002] In the camera module, a whole ball is usually used to move the lens. Although the ball can meet the movement function of the lens, it is still prone to damage and has low stability due to uneven stress. CONTENT OF THE UTILITY MODEL
[0003] In view of the above, it is necessary to provide a camera module and electronic equipment to improve the stability of the lens seat movement.
[0004] The present application provides a camera module, comprising:
[0005] a photosensitive component;
[0006] a fixed seat provided on the photosensitive side of the photosensitive component and having a through hole;
[0007] a lens assembly comprising a lens seat, a lens, a driving magnet and a driving coil, the lens being mounted on the lens seat, the lens seat being movably arranged in the through hole, the driving magnet being arranged on the lens seat, the driving coil being arranged on the fixed seat and corresponding to the driving magnet in the optical axis direction of the lens, a movable groove being formed in the side wall of the through hole, the movable groove comprising a bottom wall and an arc-shaped wall, the arc-shaped wall being connected to the bottom wall and arranged along the circumferential direction of the bottom wall;
[0008] a rolling unit comprising a plurality of balls, the plurality of balls being accommodated in the movable groove, each ball being in rolling abutment with the bottom wall, and the arc-shaped wall and the lens seat being in rolling abutment with part of the balls;
[0009] When the driving coil is energized, the driving magnet drives the lens seat to roll against part of the balls, so that the lens seat moves relative to the fixed seat along the optical axis direction of the lens.
[0010] In the above camera module, part of the balls roll against the lens seat, the plurality of balls are in rolling abutment with the bottom wall, which can guide the lens seat during movement, and the arc-shaped wall is in rolling abutment with part of the balls, which can reduce the vibration generated by the plurality of balls during rolling, thereby improving the stability of the lens seat movement.
[0011] In some embodiments, the height of the arc-shaped wall along the radial direction of the through hole is greater than the radius of the ball.
[0012] Therefore, the height of the arc-shaped wall along the radial direction of the through hole is greater than the radius of the ball, which can effectively block the plurality of balls and prevent the balls from leaving the movable groove.
[0013] In some embodiments, the plurality of balls are arranged in sequence along the optical axis direction of the lens, and two adjacent balls roll against each other.
[0014] Therefore, arranging the plurality of balls in sequence along the optical axis direction of the lens can simplify the installation difficulty of the rolling unit, and is conducive to reducing the manufacturing cost of the camera module.
[0015] In some embodiments, among the plurality of balls located in the movable groove, the diameters of two balls located at the two ends are greater than the diameters of the other balls.
[0016] Therefore, the diameters of the two balls located at the two ends are greater than the diameters of the other balls, which can reduce the frictional resistance of the balls located in the middle and is conducive to improving the smoothness of the rolling of the plurality of balls.
[0017] In some embodiments, the plurality of balls located in the movable groove are composed of a first ball and a plurality of second balls, the first ball is arranged at the middle of the movable groove, the plurality of second balls are arranged in sequence around the first ball and roll against the first ball respectively, part of the second balls roll against the arc-shaped wall respectively, and any two adjacent second balls roll against each other.
[0018] Therefore, the first ball and the plurality of second balls form a ring structure for the plurality of balls, which is conducive to improving the uniformity of the force received by the lens holder.
[0019] In some embodiments, the lens holder is provided with a limiting groove on the side wall facing the movable groove, and at least part of the plurality of balls extends into the limiting groove.
[0020] Therefore, the limiting groove can limit at least part of the balls to avoid position deviation of the plurality of balls, which is conducive to improving the accuracy of the guidance of the plurality of balls to the lens holder.
[0021] In some embodiments, the lens holder comprises:
[0022] a main body, the lens is mounted on the main body;
[0023] an extension body connected to the side surface of the main body and arranged along the circumference of the main body, the side of the extension body away from the main body is provided with the limiting groove, the limiting groove penetrates through the extension body along the optical axis direction of the lens, and the driving magnet is mounted on the extension body.
[0024] Therefore, the limiting groove penetrates through the extension body along the optical axis direction of the lens, which can simplify the installation difficulty of the plurality of balls and is conducive to reducing the manufacturing cost of the camera module.
[0025] In some embodiments, the rolling units and the movable slots are multiple, the movable slots are arranged along the circumference of the side wall of the through hole and correspond to the rolling units one by one.
[0026] Therefore, the multiple rolling units and the multiple movable slots can form multiple guide positions for the mirror seat, which is beneficial to improve the stability of the movement of the mirror seat.
[0027] In some embodiments, the driving magnets and the driving coils are multiple, the driving magnets are arranged along the circumference of the mirror seat, and the driving coils are arranged along the circumference of the fixed seat and correspond to the driving magnets one by one.
[0028] Therefore, the multiple driving magnets and the multiple driving coils can form multiple power point positions on the circumferential side of the mirror seat, which is beneficial to improve the efficiency of the movement of the mirror seat.
[0029] The embodiments of the present application also provide an electronic device, comprising:
[0030] a shell;
[0031] The camera module described above is installed in the shell.
[0032] In the camera module of the electronic device described above, part of the rolling balls roll against the mirror seat, and multiple rolling balls roll against the bottom wall, so that the mirror seat is guided by multiple points during movement, and the arc-shaped wall rolls against part of the rolling balls, which can reduce the vibration generated by the multiple rolling balls during rolling, thereby improving the stability of the movement of the mirror seat and the imaging quality of the electronic device. BRIEF DESCRIPTION OF DRAWINGS
[0033] Figure 1 FIG. 1 is a structural schematic diagram of a camera module according to an embodiment of the present application.
[0034] Figure 2 FIG. 2 is an exploded schematic diagram of the camera module shown in FIG. 1. Figure 1
[0035] Figure 3 FIG. 3 is an enlarged schematic diagram of the camera module A shown in FIG. 1. Figure 2
[0036] Figure 4 FIG. 4 is a structural schematic diagram of a rolling unit of a camera module according to another embodiment of the present application.
[0037] Figure 5 FIG. 5 is a structural schematic diagram of an electronic device according to an embodiment of the present application.
[0038] Main element symbol explanation: camera module 100, photosensitive assembly 110, fixed seat 120, through hole 120a, movable slot 120b, bottom wall 120c, arc wall 120d, fixed body 121, mounting body 122, first mounting slot 122a, lens assembly 130, lens seat 131, limiting slot 131a, main body 1311, extension body 1312, second mounting slot 1312a, lens 132, drive magnet 133, drive coil 134, rolling unit 140, rolling ball 141, first rolling ball 141a, second rolling ball 141b, positioning seat 150, electronic device 1000, shell 200. DETAILED DESCRIPTION
[0039] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The same or similar components are denoted by the same or similar reference numerals throughout the drawings, and a repeated description is omitted. The embodiments described below are merely examples for explaining the present application, and should not be construed as limiting the present application.
[0040] In the description of the present application, it should be noted that unless specifically defined and limited, the term "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two elements or the interaction relationship between two elements. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise explicitly specified. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0041] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The same or similar components are denoted by the same or similar reference numerals throughout the drawings, and a repeated description is omitted. The embodiments described below are merely examples for explaining the present application, and should not be construed as limiting the present application.
[0042] Please refer to Figure 1 , Figure 2 and Figure 3The embodiment of the present application provides a camera module 100, which comprises a photosensitive component 110, a fixing seat 120, a lens assembly 130 and a rolling unit 140. The fixing seat 120 is arranged on the photosensitive side of the photosensitive component 110 and is provided with a through hole 120a, the lens assembly 130 comprises a lens seat 131, a lens 132, a driving magnet 133 and a driving coil 134, the lens 132 is installed on the lens seat 131, the lens seat 131 is movably arranged in the through hole 120a, the driving magnet 133 is arranged on the lens seat 131, the driving coil 134 is arranged on the fixing seat 120 and corresponds to the driving magnet 133 in the optical axis direction of the lens 132, a side wall of the through hole 120a is provided with a movable groove 120b, the movable groove 120b comprises a bottom wall 120c and an arc-shaped wall 120d, the arc-shaped wall 120d is connected with the bottom wall 120c and is arranged along the circumferential direction of the bottom wall 120c, the rolling unit 140 comprises a plurality of rolling balls 141, the plurality of rolling balls 141 are all accommodated in the movable groove 120b, each rolling ball 141 is in rolling abutment with the bottom wall 120c, and the arc-shaped wall 120d and the lens seat 131 are in rolling abutment with part of the rolling balls 141. When the driving coil 134 is electrified, the driving magnet 133 drives the lens seat 131 to roll against part of the rolling balls 141, so that the lens seat 131 moves along the optical axis direction of the lens 132 relative to the fixing seat 120.
[0043] In the above camera module 100, part of the rolling balls 141 roll against the lens seat 131, the plurality of rolling balls 141 are all in rolling abutment with the bottom wall 120c, the lens seat 131 can be guided by multiple points during movement, the arc-shaped wall 120d is in rolling abutment with part of the rolling balls 141, and vibration generated by the plurality of rolling balls 141 during rolling can be reduced, so that the stability of movement of the lens seat 131 is improved.
[0044] In some embodiments, the height of the arc-shaped wall 120d along the radial direction of the through hole 120a is greater than the radius of the rolling ball 141.
[0045] Therefore, the height of the arc-shaped wall 120d along the radial direction of the through hole 120a is greater than the radius of the rolling ball 141, the plurality of rolling balls 141 can be effectively blocked, and the rolling ball 141 can be prevented from separating from the movable groove 120b.
[0046] Please refer to Figure 2 In some embodiments, the plurality of rolling balls 141 are arranged in sequence along the optical axis direction of the lens 132, and adjacent two rolling balls 141 are in rolling abutment.
[0047] Therefore, the plurality of rolling balls 141 are arranged in sequence along the optical axis direction of the lens 132, the installation difficulty of the rolling unit 140 can be reduced, and the manufacturing cost of the camera module 100 is reduced.
[0048] Please refer to Figure 2In the embodiment, the diameters of the two balls 141 at the two ends are greater than the diameters of the other balls 141.
[0049] Therefore, the diameters of the two balls 141 at the two ends are greater than the diameters of the other balls 141, which can reduce the frictional resistance of the balls 141 in the middle and improve the smoothness of the rolling of the balls 141.
[0050] Please refer to Figure 4 In another embodiment, the balls 141 in the movable groove 120b are composed of a first ball 141a and a plurality of second balls 141b. The first ball 141a is arranged at the middle of the movable groove 120b, and the plurality of second balls 141b are sequentially arranged around the first ball 141a and respectively roll against the first ball 141a. Some of the second balls 141b respectively roll against the arc-shaped wall 120d, and any two adjacent second balls 141b roll against each other.
[0051] Therefore, the first ball 141a and the plurality of second balls 141b form a ring structure for the balls 141, which can improve the uniformity of the force received by the lens holder 131.
[0052] Please refer to Figure 2 In some embodiments, the lens holder 131 is provided with a limiting groove 131a on the side wall facing the movable groove 120b, and at least part of the balls 141 extend into the limiting groove 131a. For example, the limiting groove can be arranged in a vertical direction, or in an inclined direction, or in an arc-shaped structure, and the movable groove 120b is correspondingly arranged in a matching manner.
[0053] Therefore, the limiting groove 131a can limit at least part of the balls 141 to avoid position deviation of the balls 141, which can improve the accuracy of the guidance of the balls 141 to the lens holder 131.
[0054] Please refer to Figure 2 In some embodiments, the lens holder 131 includes a main body 1311 and an extension body 1312. The lens 132 is mounted on the main body 1311, the extension body 1312 is connected to the side surface of the main body 1311 and arranged along the circumferential direction of the main body 1311, the limiting groove 131a is arranged on the side of the extension body 1312 away from the main body 1311, the limiting groove 131a penetrates through the extension body 1312 along the optical axis direction of the lens 132, and the driving magnet 133 is mounted on the extension body 1312.
[0055] Therefore, the limiting groove 131a penetrates through the extension body 1312 along the optical axis direction of the lens 132, which can simplify the installation difficulty of the balls 141 and reduce the manufacturing cost of the camera module 100.
[0056] In some embodiments, the rolling units 140 and the movable slots 120b are multiple, the multiple movable slots 120b are arranged along the circumference of the side wall of the through hole 120a and correspond to the multiple rolling units 140 one by one.
[0057] Therefore, the multiple rolling units 140 and the multiple movable slots 120b can form multiple guide positions for the lens seat 131, which is conducive to improving the stability of the movement of the lens seat 131.
[0058] Please refer to Figure 2 In some embodiments, the driving magnets 133 and the driving coils 134 are multiple, the multiple driving magnets 133 are arranged along the circumference of the lens seat 131, and the multiple driving coils 134 are arranged along the circumference of the fixed seat 120 and correspond to the multiple driving magnets 133 one by one.
[0059] Therefore, the multiple driving magnets 133 and the multiple driving coils 134 can form multiple power point positions on the circumferential side of the lens seat 131, which is conducive to improving the efficiency of the movement of the lens seat 131.
[0060] Please refer to Figure 2 In the embodiment, the fixed seat 120 includes a fixed body 121 and a mounting body 122, the fixed body 121 is provided with a through hole 120a, the through hole 120a penetrates through the opposite two surfaces of the fixed body 121, the mounting body 122 is connected to the side wall of the through hole 120a and arranged along the circumference of the fixed body 121, the mounting body 122 is provided with multiple first mounting slots 122a, the multiple first mounting slots 122a are arranged along the circumference of the mounting body 122, and each first mounting slot 122a accommodates one driving coil 134. The side surface of the extension body 1312 is provided with multiple second mounting slots 1312b, the multiple second mounting slots 1312b correspond to the multiple first mounting slots 122a in the optical axis direction of the lens 132, and each second mounting slot 1312b accommodates one driving magnet 133.
[0061] Therefore, the first mounting slot 122a and the second mounting slot 1312b can form an embedded structure of the multiple driving magnets 133 and the lens seat 131, and an embedded structure of the multiple driving coils 134 and the fixed seat 120, which is conducive to the miniaturization of the camera module 100.
[0062] Please refer to Figure 1 and Figure 2 In some embodiments, the camera module 100 further includes a positioning seat 150. The positioning seat 150 is clamped on the outer circumferential side of the photosensitive assembly 110 and sleeved on the fixed seat 120.
[0063] Therefore, the positioning seat 150 can improve the position accuracy of the fixing seat 120 relative to the photosensitive assembly 110, and is conducive to improving the image taking stability of the camera module 100.
[0064] Please refer to Figure 5 The embodiments of the present application also provide an electronic device 1000, which comprises a shell 200 and the camera module 100 described above, and the camera module 100 is installed on the shell 200. The electronic device 1000 is a mobile phone, a tablet computer or the like.
[0065] In the camera module 100 of the electronic device 1000, part of the balls 141 roll against the lens seat 131, and the plurality of balls 141 are in rolling abutment with the bottom wall 120c, so that the lens seat 131 can be guided by multiple points during movement, and the arc-shaped wall 120d is in rolling abutment with part of the balls 141, which can reduce the vibration generated by the plurality of balls 141 during rolling, thereby being conducive to improving the stability of the movement of the lens seat 131, so as to improve the imaging quality of the electronic device 1000.
[0066] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be included in the present application.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.
Claims
1. An image capturing module, comprising: The application relates to a camera module. The camera module comprises a photosensitive component, a fixing seat provided on the photosensitive side of the photosensitive component and provided with a through hole, a lens assembly comprising a lens seat, a lens, a driving magnet and a driving coil, the lens being mounted on the lens seat, the lens seat being movably arranged in the through hole, the driving magnet being arranged on the lens seat, the driving coil being arranged on the fixing seat and corresponding to the driving magnet in the optical axis direction of the lens, a movable groove being arranged on the side wall of the through hole, the movable groove comprising a bottom wall and an arc-shaped wall, the arc-shaped wall being connected to the bottom wall and arranged along the circumferential direction of the bottom wall, a rolling unit comprising a plurality of rolling balls, the rolling balls being arranged in the movable groove, each rolling ball being in rolling abutment with the bottom wall, the arc-shaped wall and the lens seat being in rolling abutment with part of the rolling balls, and when the driving coil is electrified, the driving magnet drives the lens seat to roll and abut part of the rolling balls, so that the lens seat moves relative to the fixing seat along the optical axis direction of the lens. The height of the arc-shaped wall in the radial direction of the through hole is greater than the radius of the rolling ball. The rolling balls are arranged in the optical axis direction of the lens in sequence, and adjacent rolling balls are in rolling abutment. Among the rolling balls arranged in the movable groove, the diameters of the two rolling balls at the two ends are greater than the diameters of the other rolling balls. The rolling balls arranged in the movable groove are composed of a first rolling ball and a plurality of second rolling balls, the first rolling ball is arranged in the middle of the movable groove, the second rolling balls are arranged in sequence around the first rolling ball and are in abutment with the first rolling ball respectively, part of the second rolling balls are in rolling abutment with the arc-shaped wall respectively, and any adjacent two second rolling balls are in rolling abutment.
2. The camera module of claim 1, wherein, The lens seat is provided with a limiting groove on the side wall facing the movable groove, and at least part of the rolling balls extend into the limiting groove.
3. The camera module of claim 1, wherein the lens module is configured to focus light onto the image sensor. The lens seat comprises a main body, the lens is mounted on the main body, an extension body is connected to the side surface of the main body and arranged along the circumferential direction of the main body, the limiting groove is arranged on the side of the extension body away from the main body, the limiting groove penetrates the extension body in the optical axis direction of the lens, and the driving magnet is mounted on the extension body.
4. The camera module of claim 3, wherein the lens barrel is configured to move the lens assembly along the optical axis. The rolling unit and the movable groove are both multiple, the movable grooves are arranged in sequence along the circumferential direction of the side wall of the through hole and correspond to the rolling units one by one.
5. The camera module of claim 1, wherein the lens barrel is configured to move the lens assembly along the optical axis. The driving magnet and the driving coil are both multiple, the driving magnets are arranged in sequence along the circumferential direction of the lens seat, the driving coils are arranged in sequence along the circumferential direction of the fixing seat and correspond to the driving magnets one by one.
6. The camera module of claim 1, wherein, The application relates to a camera module.
7. The camera module of claim 6, wherein the lens is disposed on the substrate. The camera module comprises a photosensitive component, a fixing seat provided on the photosensitive side of the photosensitive component and provided with a through hole, a lens assembly comprising a lens seat, a lens, a driving magnet and a driving coil, the lens being mounted on the lens seat, the lens seat being movably arranged in the through hole, the driving magnet being arranged on the lens seat, the driving coil being arranged on the fixing seat and corresponding to the driving magnet in the optical axis direction of the lens, a movable groove being arranged on the side wall of the through hole, the movable groove comprising a bottom wall and an arc-shaped wall, the arc-shaped wall being connected to the bottom wall and arranged along the circumferential direction of the bottom wall, a rolling unit comprising a plurality of rolling balls, the rolling balls being arranged in the movable groove, each rolling ball being in rolling abutment with the bottom wall, the arc-shaped wall and the lens seat being in rolling abutment with part of the rolling balls, and when the driving coil is electrified, the driving magnet drives the lens seat to roll and abut part of the rolling balls, so that the lens seat moves relative to the fixing seat along the optical axis direction of the lens. The height of the arc-shaped wall in the radial direction of the through hole is greater than the radius of the rolling ball. The rolling balls are arranged in the optical axis direction of the lens in sequence, and adjacent rolling balls are in rolling abutment.
8. The camera module of claim 1, wherein, Among the rolling balls arranged in the movable groove, the diameters of the two rolling balls at the two ends are greater than the diameters of the other rolling balls.
9. The camera module of claim 1, wherein, The rolling balls arranged in the movable groove are composed of a first rolling ball and a plurality of second rolling balls, the first rolling ball is arranged in the middle of the movable groove, the second rolling balls are arranged in sequence around the first rolling ball and are in abutment with the first rolling ball respectively, part of the second rolling balls are in rolling abutment with the arc-shaped wall respectively, and any adjacent two second rolling balls are in rolling abutment.
10. An electronic device, comprising: The lens seat is provided with a limiting groove on the side wall facing the movable groove, and at least part of the rolling balls extend into the limiting groove. The lens seat comprises a main body, the lens is mounted on the main body, an extension body is connected to the side surface of the main body and arranged along the circumferential direction of the main body, the limiting groove is arranged on the side of the extension body away from the main body, the limiting groove penetrates the extension body in the optical axis direction of the lens, and the driving magnet is mounted on the extension body. The rolling unit and the movable groove are both multiple, the movable grooves are arranged in sequence along the circumferential direction of the side wall of the through hole and correspond to the rolling units one by one. The driving magnet and the driving coil are both multiple, the driving magnets are arranged in sequence along the circumferential direction of the lens seat, the driving coils are arranged in sequence along the circumferential direction of the fixing seat and correspond to the driving magnets one by one. The application relates to a camera module. The camera module comprises a photosensitive component, a fixing seat provided on the photosensitive side of the photosensitive component and provided with a through hole, a lens assembly comprising a lens seat, a lens, a driving magnet and a driving coil, the lens being mounted on the lens seat, the lens seat being movably arranged in the through hole, the driving magnet being arranged on the lens seat, the driving coil being arranged on the fixing seat and corresponding to the driving magnet in the optical axis direction of the lens, a movable groove being arranged on the side wall of the through hole, the movable groove comprising a bottom wall and an arc-shaped wall, the arc-shaped wall being connected to the bottom wall and arranged along the circumferential direction of the bottom wall, a rolling unit comprising a plurality of rolling balls, the rolling balls being arranged in the movable groove, each rolling ball being in rolling abutment with the bottom wall, the arc-shaped wall and the lens seat being in rolling abutment with part of the rolling balls, and when the driving coil is electrified, the driving magnet drives the lens seat to roll and abut part of the rolling balls, so that the lens seat moves relative to the fixing seat along the optical axis direction of the lens. The height of the arc-shaped wall in the radial direction of the through hole is greater than the radius of the rolling ball. The rolling balls are arranged in the optical axis direction of the lens in sequence, and adjacent rolling balls are in rolling abutment. Among the rolling balls arranged in the movable groove, the diameters of the two rolling balls at the two ends are greater than the diameters of the other rolling balls. The rolling balls arranged in the movable groove are composed of a first rolling ball and a plurality of second rolling balls, the first rolling ball is arranged in the middle of the movable groove, the second rolling balls are arranged in sequence around the first rolling ball and are in abutment with the first rolling ball respectively, part of the second rolling balls are in rolling abutment with the arc-shaped wall respectively, and any adjacent two second rolling balls are in rolling abutment. The lens seat is provided with a limiting groove on the side wall facing the movable groove, and at least part of the rolling balls extend into the limiting groove. The lens seat comprises a main body, the lens is mounted on the main body, an extension body is connected to the side surface of the main body and arranged along the circumferential direction of the main body, the limiting groove is arranged on the side of the extension body away from the main body, the limiting groove penetrates the extension body in the optical axis direction of the lens, and the driving magnet is mounted on the extension body. The rolling unit and the movable groove are both multiple, the movable grooves are arranged in sequence along the circumferential direction of the side wall of the through hole and correspond to the rolling units one by one. The driving magnet and the driving coil are both multiple, the driving magnets are arranged in sequence along the circumferential direction of the lens seat, the driving coils are arranged in sequence along the circumferential direction of the fixing seat and correspond to the driving magnets one by one. The application relates to a camera module. The camera module comprises a photosensitive component, a fixing seat provided on the photosensitive side of the photosensitive component and provided with a through hole, a lens assembly comprising a lens seat, a lens, a