Motor driving device and camera module

Abstract

The utility model relates to the technical field of camera shooting, and provides a motor driving device and a camera shooting module. The motor driving device comprises a mounting seat; the bearing seat is arranged on the mounting seat; the movable seat is arranged in the bearing seat and can move along the optical axis direction; the anti-shake driving module comprises two anti-shake magnets and two anti-shake driving coils, the bearing seat is provided with a first side wall and a second side wall which are adjacent to each other, and the two anti-shake magnets are arranged on the first side wall and the second side wall respectively; the two anti-shake driving coils are arranged opposite to the two anti-shake magnets respectively; the focusing driving module comprises a focusing driving coil and a focusing magnet, the bearing seat is further provided with a third side wall, the focusing driving coil is arranged on the third side wall, and the focusing magnet and the focusing driving coil are oppositely arranged. According to the motor driving device, the focusing driving coil and the two anti-shake magnets are arranged on the different side walls of the bearing seat respectively and are distributed uniformly, the size of the motor driving device in the orthogonal direction of the optical axis can be reduced, and miniaturization of the camera module is facilitated.

Description

Technical Field

[0001] The present application relates to the field of camera technologies, and particularly to a motor driving device and a camera module. Background Art

[0002] In the optical field, motors are commonly used in smartphone cameras. Usually, an autofocus driving module is adopted to achieve the autofocus function for fast and accurate focusing, and an anti-shake driving module is adopted to achieve the optical anti-shake function to improve the stability and clarity of imaging.

[0003] In common motor architectures, the autofocus driving module and the anti-shake driving module are usually arranged on the same side. However, this will make the size of the motor in the orthogonal direction of the optical axis larger, which is not conducive to the miniaturization of the camera module. Summary of the Utility Model

[0004] In view of the above, it is necessary to provide a motor driving device and a camera module to reduce the size of the motor driving device in the orthogonal direction of the optical axis.

[0005] In a first aspect of an embodiment of the present application, a motor driving device is provided, including: a mounting base; a supporting base provided on the mounting base and movable along the orthogonal direction of the optical axis; a moving base provided in the supporting base and movable along the optical axis direction for mounting a lens assembly; an anti-shake driving module including two anti-shake magnets and two anti-shake driving coils, wherein the supporting base has adjacent first and second side walls, and the two anti-shake magnets are respectively provided on the first and second side walls; the two anti-shake driving coils are provided on the mounting base and are respectively arranged opposite to the two anti-shake magnets, and the supporting base drives the moving base to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake driving coils and the two anti-shake magnets; an autofocus driving module including an autofocus driving coil and an autofocus magnet, wherein the supporting base further has a third side wall adjacent to the second side wall and opposite to the first side wall, the autofocus driving coil is provided on the third side wall, the autofocus magnet is provided on the moving base and is arranged opposite to the autofocus driving coil, and the moving base moves along the optical axis direction under the interaction of the autofocus driving coil and the autofocus magnet.

[0006] In the solution provided by the embodiment of the present application, by respectively arranging two anti-shake magnets on the first side wall and the second side wall of the bearing seat, and arranging two anti-shake driving coils on the mounting seat and oppositely arranged with the two anti-shake magnets respectively, the bearing seat can drive the moving seat to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake driving coils and the two anti-shake magnets; by arranging the focusing driving coil on the third side wall of the bearing seat, and arranging the focusing magnet on the moving seat and oppositely arranged with the focusing driving coil, the moving seat can move along the optical axis direction under the interaction with the focusing driving coil and the focusing magnet; since the focusing driving coil and the two anti-shake magnets are respectively arranged on different side walls of the bearing seat and are relatively evenly distributed, the size of the motor driving device in the orthogonal direction of the optical axis can be reduced, which is beneficial to the miniaturization of the camera module.

[0007] In a possible implementation manner, a first chute is provided on the side of the mounting seat facing the bearing seat, a second chute is provided on the bearing seat facing the first chute, and the projections of the second chute and the first chute on the plane perpendicular to the optical axis intersect. The motor driving device further includes: a supporting element, including a first supporting ball, a part of the first supporting ball is arranged in the first chute, and the other part of the first supporting ball is arranged in the second chute.

[0008] In the solution provided by the embodiment of the present application, by limiting the first supporting ball in the first chute and the second chute, it can be ensured that the bearing seat drives the moving seat to move along the extending directions of the first chute and the second chute.

[0009] In a possible implementation manner, the supporting element further includes: a second supporting ball, rotatably arranged in the mounting seat and spaced from the first supporting ball. A limiting groove is concavely arranged on the side of the bearing seat facing the mounting seat, the limiting groove corresponds to the second supporting ball, and one end of the second supporting ball extends out of the mounting seat into the limiting groove and abuts against the groove wall of the limiting groove facing the mounting seat.

[0010] In the solution provided by the embodiment of the present application, by arranging the second supporting ball, a stable supporting surface can be formed in cooperation with the first supporting ball; one end of the second supporting ball extends out of the mounting seat into the limiting groove and abuts against the groove wall of the limiting groove facing the mounting seat, which can enable the second supporting ball to roll on the groove wall of the limiting groove facing the mounting seat, and the supporting effect is better.

[0011] In a possible implementation, a through hole is formed in the abutting seat, and an abutting block protrudes from the hole wall of the through hole. A connecting groove is formed on one side of the abutting block facing the third side wall. The moving seat is disposed in the through hole. The motor driving device further includes: a guiding member, a part of the guiding member is connected to the connecting groove, and another part of the guiding member extends out of the connecting groove. A slot is recessed at a position on the outer side of the moving seat close to the guiding member. The abutting block and the guiding member extend into the slot. A guiding groove is recessed in the slot wall of the slot facing the guiding member. The shape of the guiding groove is adapted to the guiding member, and the guiding member is slidably disposed in the guiding groove.

[0012] In the solution provided by the embodiment of the present application, by extending the abutting block and the guiding member into the slot of the moving seat, the abutting seat and the moving seat can be clamped together, and the moving seat will not move in the orthogonal direction of the optical axis. By providing the guiding member, the movement of the moving seat along the optical axis direction can be guided, reducing the error caused by the position deviation between the abutting seat and the moving seat during the operation of the motor driving device, and improving the operation accuracy and stability of the motor driving device.

[0013] In a possible implementation, the abutting seat further has a fourth side wall disposed between the first side wall and the third side wall. Both the focusing driving coil and the focusing magnet are two. The two focusing driving coils are respectively disposed in the third side wall and the fourth side wall, and the two focusing magnets are respectively disposed opposite to the two focusing driving coils.

[0014] In the solution provided by the embodiment of the present application, by setting the focusing driving coils to two and respectively disposing them in the third side wall and the fourth side wall of the abutting seat, the occupied space of the focusing driving coils can be reduced, the overall structure layout can be made compact, and the focusing correction accuracy can be improved.

[0015] In a possible implementation, first accommodation grooves are respectively formed in the third side wall and the fourth side wall. The two focusing driving coils are respectively disposed in the two first accommodation grooves, and the two focusing magnets are respectively disposed outside the moving seat.

[0016] In the solution provided by the embodiment of the present application, by respectively forming first accommodation grooves in the third side wall and the fourth side wall of the abutting seat and respectively disposing the two focusing driving coils in the two first accommodation grooves, the installation of the focusing driving coils can be made more convenient; by respectively disposing the two focusing magnets outside the moving seat, the installation of the focusing magnets can be made more convenient.

[0017] In a possible implementation, the two anti-shake driving coils are respectively disposed in the first side wall and the second side wall.

[0018] In the solution provided by the embodiment of the present application, by respectively arranging two anti-shake drive coils inside the first side wall and the second side wall of the supporting seat, the occupied space of the anti-shake drive coils can be reduced, making the overall structural layout compact.

[0019] In a possible implementation manner, receiving grooves are respectively formed on one side of the first side wall close to the mounting seat and one side of the second side wall close to the mounting seat. Both of the two anti-shake drive coils and the two anti-shake magnets are located in the corresponding receiving grooves. The anti-shake magnets are fixed to the groove walls of the corresponding receiving grooves, and the anti-shake drive coils are fixed to the mounting seat.

[0020] In the solution provided by the embodiment of the present application, by respectively forming receiving grooves on one side of the first side wall close to the mounting seat and one side of the second side wall close to the mounting seat, and arranging the anti-shake magnets and the anti-shake drive coils in the two first accommodating grooves, with the anti-shake magnets fixed to the groove walls of the receiving grooves and the anti-shake drive coils fixed to the mounting seat, the installation of the anti-shake magnets and the anti-shake drive coils can be made more convenient.

[0021] In a possible implementation manner, the outer side wall of the supporting seat is concavely formed with second accommodating grooves respectively communicating with the two first accommodating grooves. The focusing drive module further includes a focusing circuit board, which is arranged in the second accommodating groove and is electrically connected to the focusing drive coil. The anti-shake drive module further includes an anti-shake circuit board, which is arranged on the side of the mounting seat facing the supporting seat. The anti-shake drive coil is arranged on the anti-shake circuit board, and the anti-shake circuit board is respectively electrically connected to the focusing circuit board and the anti-shake drive coil.

[0022] In the solution provided by the embodiment of the present application, by arranging the focusing circuit board in the second accommodating groove, protection for the focusing circuit board can be formed, and electrical connection with the focusing drive coil can be achieved, so that the moving seat moves along the optical axis direction under the interaction of the focusing drive coil and the focusing magnet; by arranging the anti-shake circuit board on the mounting seat and respectively electrically connecting it to the focusing circuit board and the anti-shake drive coil, electrical connection between the anti-shake circuit board, the focusing circuit board and the anti-shake drive coil can be achieved, so that the supporting seat drives the mounting seat to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake drive coils and the two anti-shake magnets.

[0023] In the second aspect of the embodiment of the present application, a camera module is provided, including: a photosensitive component; a lens component, arranged on the photosensitive path of the photosensitive component and cooperating with the photosensitive component; and the motor driving device as described above, with the motor driving device arranged around the lens component.

[0024] In the technical solution provided by the embodiment of the present application, by respectively arranging two anti-shake magnets on the first side wall and the second side wall of the bearing seat, and arranging two anti-shake driving coils on the mounting seat and opposite to the two anti-shake magnets respectively, the bearing seat can drive the mounting seat to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake driving coils and the two anti-shake magnets; by arranging the focusing driving coil on the third side wall of the bearing seat, and arranging the focusing magnet on the moving seat and opposite to the focusing driving coil, the moving seat can move along the optical axis direction under the interaction with the focusing driving coil and the focusing magnet; since the focusing driving coil and the two anti-shake magnets are respectively arranged on different side walls of the bearing seat and are relatively evenly distributed, the size of the motor driving device in the orthogonal direction of the optical axis can be reduced, which is beneficial to the miniaturization of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic three-dimensional structure diagram of a camera module provided by an embodiment of the present application.

[0026] Figure 2 is Figure 1 an exploded structure diagram of the camera module shown.

[0027] Figure 3 is Figure 2 an exploded structure diagram of the motor driving device and the lens assembly shown.

[0028] Figure 4 is Figure 2 an exploded structure diagram of the motor driving device and the lens assembly from another angle shown.

[0029] Figure 5 is Figure 2 a cross-sectional view of the motor driving device and the lens assembly along the A-A direction shown.

[0030] MAIN ELEMENT SYMBOL DESCRIPTION

[0031] Camera module 100

[0032] Photosensitive component 10

[0033] Photosensitive chip 12

[0034] Photosensitive circuit board 14

[0035] Lens assembly 20

[0036] Motor driving device 30

[0037] Mounting seat 31

[0038] Light passing hole 311

[0039] First sliding groove 312

[0040] Bump 313

[0041] Carrying part 314

[0042] Resting seat 32

[0043] First side wall 301

[0044] Second side wall 302

[0045] Third side wall 303

[0046] Fourth side wall 304

[0047] Second chute 321

[0048] Limit groove 322

[0049] Through hole 323

[0050] Contact block 3231

[0051] Connection groove 3232

[0052] First accommodation groove 324

[0053] Storage groove 325

[0054] Second accommodation groove 326

[0055] Moving seat 33

[0056] Slot 330

[0057] Guide groove 331

[0058] Groove 332

[0059] Focus driving module 34

[0060] Focus driving coil 341

[0061] Focus magnet 342

[0062] Focus circuit board 343

[0063] Anti - shake driving module 35

[0064] Anti - shake magnet 351

[0065] Anti - shake driving coil 352

[0066] Anti - shake circuit board 353

[0067] Support element 36

[0068] First support ball 361

[0069] Second support ball 362

[0070] Guide member 37

[0071] Housing 40 Detailed implementation manner

[0072] The following details the implementation manners of the present application. Examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as limiting the present application.

[0073] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "plurality" is two or more unless otherwise specifically defined.

[0074] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection or a connection that can communicate with each other, it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0075] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0076] Please refer to Figure 1 , the embodiment of the present application provides an imaging module 100, including a photosensitive component 10, a lens component 20, a motor driving device 30 and a housing 40.

[0077] Please refer to Figure 2, the lens assembly 20 is disposed on the light-sensing path of the light-sensing assembly 10. The light-sensing assembly 10 cooperates with the lens assembly 20 to receive the light converged by the lens assembly 20 and perform photoelectric conversion. The motor driving device 30 is disposed around the lens assembly 20 and is used to drive the lens assembly 20 to move along the optical axis direction for focusing and move along the orthogonal direction of the optical axis for anti-shake. In this embodiment, the optical axis is in the Z-axis direction, and the orthogonal direction of the optical axis is the X-axis direction and the Y-axis direction. Among them, the light-sensing assembly 10 includes a light-sensing chip 12 and a light-sensing circuit board 14. The light-sensing chip 12 is electrically connected to the light-sensing circuit board 14 and is disposed opposite to the lens assembly 20. The housing 40 is sleeved on the outer periphery of the motor driving device 30, and the lens assembly 20 extends out of the housing 40.

[0078] Please refer to Figure 3 and Figure 4 , the motor driving device 30 includes a mounting seat 31, a supporting seat 32, a moving seat 33, a focusing driving module 34 and an anti-shake driving module 35.

[0079] The mounting seat 31 is disposed on the light-sensing circuit board 14. A light-passing hole 311 is formed on the mounting seat 31, and the light-sensing chip 12 is located in the light-passing hole 311; the supporting seat 32 is disposed on the mounting seat 31 and can move along the orthogonal direction of the optical axis; the moving seat 33 is disposed in the supporting seat 32 and can move along the optical axis direction for mounting the lens assembly 20; the anti-shake driving module 35 includes two anti-shake magnets 351 and two anti-shake driving coils 352. The supporting seat 32 has adjacent first side wall 301 and second side wall 302, and the two anti-shake magnets 351 are respectively disposed on the first side wall 301 and the second side wall 302 of the supporting seat 32; the two anti-shake driving coils 352 are disposed on the mounting seat 31 and are respectively disposed opposite to the two anti-shake magnets 351. The supporting seat 32 drives the moving seat 33 to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake driving coils 352 and the two anti-shake magnets 351; the focusing driving module 34 includes a focusing driving coil 341 and a focusing magnet 342. The supporting seat 32 further has a third side wall 303 adjacent to the second side wall 302 and opposite to the first side wall 301. The focusing driving coil 341 is disposed on the third side wall 303 of the supporting seat 32, and the focusing magnet 342 is disposed on the moving seat 33 and is disposed opposite to the focusing driving coil 341. The moving seat 33 moves along the optical axis direction under the interaction of the focusing driving coil 341 and the focusing magnet 342.

[0080] In the technical solution provided by the embodiment of the present application, by respectively arranging two anti-shake magnets 351 on the first side wall 301 and the second side wall 302 of the bearing seat 32, and arranging two anti-shake drive coils 352 on the mounting seat 31 and respectively opposite to the two anti-shake magnets 351, it can be ensured that the bearing seat 32 drives the moving seat 33 to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake drive coils 352 and the two anti-shake magnets 351; by arranging the focusing drive coil 341 on the third side wall 303 of the bearing seat 32, and arranging the focusing magnet 342 on the moving seat 33 and opposite to the focusing drive coil 341, it can be ensured that the moving seat 33 moves along the optical axis direction under the interaction with the focusing drive coil 341 and the focusing magnet 342; since the focusing drive coil 341 and the two anti-shake magnets 351 are respectively arranged on different side walls of the bearing seat 32, and the distribution is relatively uniform, it can reduce the size of the motor driving device 30 in the orthogonal direction of the optical axis, which is beneficial to the miniaturization of the camera module 100.

[0081] In this embodiment, the mounting seat 31 is a plate-like structure, the bearing seat 32 and the moving seat 33 are both frame-like structures, and the moving seat 33 and the lens assembly 20 are an integral structure. It can be understood that in other embodiments, the moving seat 33 and the lens assembly 20 are a split structure.

[0082] On one side of the mounting seat 31 facing the bearing seat 32, a first chute 312 is provided. At the position of the bearing seat 32 facing the first chute 312, a second chute 321 is provided. The projections of the second chute 321 and the first chute 312 on the plane perpendicular to the optical axis intersect. Among them, the first chute 312 extends along the X-axis direction, and the second chute 321 extends along the Y-axis direction. The motor driving device 30 further includes a support element 36. The support element 36 includes a first support ball 361. A part of the first support ball 361 is arranged in the first chute 312, and another part of the first support ball 361 is arranged in the second chute 321. By limiting the first support ball 361 in the first chute 312 and the second chute 321, it can be ensured that the bearing seat 32 drives the mounting seat 31 to move along the extending directions of the first chute 312 and the second chute 321, which can effectively reduce the height of the motor driving device 30 and reduce the inclination angle formed due to the stack tolerance of components.

[0083] In this embodiment, there are two first support balls 361, and the two first support balls 361 are arranged at two corners in the diagonal direction of the mounting seat 31. It can be understood that in other embodiments, the number of the first support balls 361 can be one, three, four, etc., but is not limited thereto.

[0084] In this embodiment, two bumps 313 are provided on one side of the mounting seat 31 facing the bearing seat 32. The two bumps 313 are respectively arranged at two corners in the diagonal direction of the mounting seat 31, and the first chute 312 is opened at the top of the bump 313.

[0085] The support element 36 further includes a second support ball 362. The second support ball 362 is rotatably disposed within the mounting base 31 and is spaced apart from the first support ball 361. The second support ball 362 is disposed at another corner of the mounting base 31. A limiting groove 322 is recessed on one side of the bearing seat 32 facing the mounting base 31. One end of the second support ball 362 extends out of the mounting base 31 into the limiting groove 322 and abuts against the groove wall of the limiting groove 322 facing the mounting base 31. By providing the second support ball 362, a stable support surface can be formed in cooperation with the first support ball 361. One end of the second support ball 362 extending out of the mounting base 31 abuts against the groove wall of the limiting groove 322 facing the mounting base 31, enabling the second support ball 362 to roll on the groove wall of the limiting groove 322 facing the mounting base 31, and the support effect is better.

[0086] Wherein, the groove wall of the limiting groove 322 facing the mounting base 31 is a plane. The limiting groove 322 is located at the corner of the bearing seat 32 and penetrates through the bottom of the bearing seat 32 and two adjacent sides of the bearing seat 32. In this way, it can be ensured that the bearing seat 32 moves in the orthogonal direction of the optical axis. If the groove wall of the limiting groove 322 facing the mounting base 31 is set as an arc surface, there is a possibility that the bearing seat 32 moves in the optical axis direction.

[0087] A bearing portion 314 is provided on one side of the mounting base 31 facing the bearing seat 32. The bearing portion 314 can be columnar. The second support ball 362 is rotatably disposed within the bearing portion 314. By rotatably disposing the second support ball 362 within the bearing portion 314, the position of the second support ball 362 can be defined.

[0088] Please refer to Figure 5, a receiving seat 32 is provided with a through hole 323. A butt joint block 3231 protrudes from the hole wall of the through hole 323. A connecting groove 3232 is formed on one side of the butt joint block 3231 facing the third side wall 303. The connecting groove 3232 is a V-shaped groove. A moving seat 33 is arranged in the through hole 323. The motor driving device 30 further includes a guiding member 37. A part of the guiding member 37 is connected to the connecting groove 3232, and another part of the guiding member 37 extends out of the connecting groove 3232. A slot 330 is recessed at a position on the outer side of the moving seat 33 close to the guiding member 37. The butt joint block 3231 and the guiding member 37 extend into the slot 330. A guiding groove 331 is recessed on the slot wall of the slot 330 facing the guiding member 37. The guiding groove 331 is a V-shaped groove. The shape of the guiding groove 331 is adapted to the shape of the guiding member 37 extending out of the connecting groove 3232, and the guiding groove 331 is slidably connected to the guiding member 37. By making the butt joint block 3231 and the guiding member 37 extend into the slot 330 of the moving seat 33, the receiving seat 32 and the moving seat 33 can be clamped together, and the moving seat 33 will not move in the orthogonal direction of the optical axis. By arranging the guiding member 37, the movement of the moving seat 33 along the optical axis direction can be guided, reducing the error caused by the position deviation between the receiving seat 32 and the moving seat 33 during the operation of the motor driving device 30, and improving the operation accuracy and stability of the motor driving device 30.

[0089] The receiving seat 32 further has a fourth side wall 304 provided between the first side wall 301 adjacent to and the third side wall 303. Both the focusing driving coil 341 and the focusing magnet 342 are two. The two focusing driving coils 341 are respectively arranged in the third side wall 303 and the fourth side wall 304 of the receiving seat 32. The two focusing magnets 342 are respectively arranged opposite to the two focusing driving coils 341. By arranging the focusing driving coils 341 as two and respectively arranging them in the third side wall 303 and the fourth side wall 304 of the receiving seat 32, the occupied space of the focusing driving coils 341 can be reduced, making the overall structure layout compact, and the focusing correction accuracy can be improved. In this embodiment, the focusing magnet 342 includes two magnets stacked together.

[0090] It can be understood that in other embodiments, both the focusing driving coil 341 and the focusing magnet 342 can also be one.

[0091] In this embodiment, there are two butt joint blocks 3231. A connecting groove 3232 is formed on one side of one butt joint block 3231 facing the third side wall 303, and a connecting groove 3232 is formed on one side of the other butt joint block 3231 facing the fourth side wall 304. The two butt joint blocks 3231 are arranged in the diagonal direction of the hole wall of the through hole 323. Correspondingly, there are two guiding members 37, and the guiding members 37 are arranged in a rod shape.

[0092] The third side wall 303 and the fourth side wall 304 of the supporting seat 32 are respectively provided with first accommodating grooves 324. Two focusing drive coils 341 are respectively arranged in the two first accommodating grooves 324, and two focusing magnets 342 are respectively arranged outside the moving seat 33. By respectively providing the first accommodating grooves 324 on the third side wall 303 and the fourth side wall 304 of the supporting seat 32 and arranging the two focusing drive coils 341 in the two first accommodating grooves 324, the installation of the focusing drive coils 341 can be made more convenient; by respectively arranging the two focusing magnets 342 outside the moving seat 33, the installation of the focusing magnets 342 can be made more convenient. In this embodiment, the first accommodating groove 324 is a through groove. A groove 332 is formed by concave inward on the outer side wall of the moving seat 33, and the focusing magnet 342 is accommodated in the groove 332.

[0093] Two anti-shake drive coils 352 are respectively arranged in the first side wall 301 and the second side wall 302 of the supporting seat 32. By respectively arranging the two anti-shake drive coils 352 in the first side wall 301 and the second side wall 302 of the supporting seat 32, the occupied space of the anti-shake drive coils 352 can be reduced, and the overall structural layout can be made compact.

[0094] Specifically, receiving grooves 325 are respectively provided on the side of the first side wall 301 of the supporting seat 32 close to the mounting seat 31 and the side of the second side wall 302 close to the mounting seat 31. The two anti-shake drive coils 352 are respectively arranged opposite to the two anti-shake magnets 351 and are both located in the corresponding receiving grooves 325. The anti-shake magnets 351 are fixed to the groove walls of the corresponding receiving grooves 325 facing the mounting seat 31, and the anti-shake drive coils 352 are fixed to the mounting seat 31. By respectively providing the receiving grooves 325 on the side of the first side wall 301 of the supporting seat 32 close to the mounting seat 31 and the side of the second side wall 302 close to the mounting seat 31, and arranging the anti-shake magnets 351 and the anti-shake drive coils 352 in the two first accommodating grooves 324, with the anti-shake magnets 351 fixed to the groove walls of the receiving grooves 325 and the anti-shake drive coils 352 fixed to the mounting seat 31, the installation of the anti-shake magnets 351 and the anti-shake drive coils 352 can be made more convenient. In this embodiment, the receiving groove 325 penetrates through the bottom and the opposite two side surfaces of the supporting seat 32.

[0095] The outer sidewall of the bearing seat 32 is recessed to form second accommodation grooves 326 that communicate with the two first accommodation grooves 324 respectively. The second accommodation grooves 326 are located on the outer periphery of the first accommodation grooves 324. The focusing drive module 34 further includes a focusing circuit board 343, which is disposed in the second accommodation groove 326 and electrically connected to the focusing drive coil 341. The anti-shake drive module 35 further includes an anti-shake circuit board 353, which is disposed on the side of the mounting seat 31 facing the bearing seat 32. The anti-shake drive coil 352 is disposed on the anti-shake circuit board 353. The anti-shake circuit board 353 is electrically connected to the focusing circuit board 343 and the anti-shake drive coil 352 respectively. By disposing the focusing circuit board 343 in the second accommodation groove 326, protection for the focusing circuit board 343 can be formed, and electrical connection with the focusing drive coil 341 can be achieved, so that the moving seat 33 moves along the optical axis direction under the interaction of the focusing drive coil 341 and the focusing magnet 342; by disposing the anti-shake circuit board 353 on the mounting seat 31 and electrically connecting it to the focusing circuit board 343 and the anti-shake drive coil 352 respectively, electrical connection between the anti-shake circuit board 353, the focusing circuit board 343 and the anti-shake drive coil 352 can be achieved, so that the bearing seat 32 drives the mounting seat 31 to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake drive coils 352 and the two anti-shake magnets 351. In this embodiment, the anti-shake circuit board 353 is of an annular structure and is disposed on the outer periphery of the light passing hole 311.

[0096] The implementation process of the camera module 100 according to the embodiment of the present application is as follows:

[0097] During focusing, under the interaction of the two focusing magnets 342 and the two focusing drive coils 341, the moving seat 33 drives the lens assembly 20 to move along the optical axis direction within the bearing seat 32, and drives the lens assembly 20 to move along the optical axis direction for focusing. During optical anti-shake, under the interaction of the two anti-shake magnets 351 and the two anti-shake drive coils 352, the bearing seat 32 drives the mounting seat 31 and the lens assembly 20 connected to the mounting seat 31 to move along the orthogonal direction of the optical axis.

[0098] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights. In addition, obviously, the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A motor drive device, characterized in that, Comprising: Mounting base; Supporting base, provided on the mounting base and movable along the orthogonal direction of the optical axis; Moving base, provided in the supporting base and movable along the optical axis direction for mounting the lens assembly; Anti-shake driving module, including two anti-shake magnets and two anti-shake driving coils. The supporting base has adjacent first side wall and second side wall, and the two anti-shake magnets are respectively provided on the first side wall and the second side wall; the two anti-shake driving coils are provided on the mounting base and are respectively arranged opposite to the two anti-shake magnets, and the supporting base drives the moving base to move along the orthogonal direction of the optical axis under the interaction of the two anti-shake driving coils and the two anti-shake magnets; Focusing driving module, including a focusing driving coil and a focusing magnet. The supporting base further has a third side wall adjacent to the second side wall and opposite to the first side wall. The focusing driving coil is provided on the third side wall, and the focusing magnet is provided on the moving base and is arranged opposite to the focusing driving coil. The moving base moves along the optical axis direction under the interaction with the focusing driving coil and the focusing magnet.

2. The motor drive device according to claim 1, wherein A first chute is formed on one side of the mounting base facing the supporting base, and a second chute is formed on the supporting base facing the first chute. The projections of the second chute and the first chute on the plane perpendicular to the optical axis intersect. The motor driving device further includes: Supporting element, including a first supporting ball, a part of the first supporting ball is provided in the first chute, and another part of the first supporting ball is provided in the second chute.

3. The motor drive device according to claim 2, wherein, The supporting element further includes: Second supporting ball, rotatably provided in the mounting base and spaced from the first supporting ball. A limiting groove is concavely provided on one side of the supporting base facing the mounting base, and the limiting groove corresponds to the second supporting ball. One end of the second supporting ball extends out of the mounting base into the limiting groove and abuts against the groove wall of the limiting groove facing the mounting base.

4. The motor drive device according to claim 1, wherein, A through hole is formed on the supporting base, and an abutting block protrudes from the hole wall of the through hole. A connecting groove is formed on one side of the abutting block facing the third side wall. The moving base is provided in the through hole. The motor driving device further includes: Guide member, a part of the guide member is connected to the connecting groove, and another part of the guide member extends out of the connecting groove. A slot is concavely provided at a position on the outer side of the moving base close to the guide member. The abutting block and the guide member extend into the slot. A guide groove is concavely provided on the slot wall of the slot facing the guide member. The shape of the guide groove is adapted to the guide member, and the guide member is slidably arranged in the guide groove.

5. The motor drive device according to claim 1, wherein The supporting base further has a fourth side wall provided between the first side wall and the third side wall. Both the focusing driving coil and the focusing magnet are two. The two focusing driving coils are respectively provided in the third side wall and the fourth side wall, and the two focusing magnets are respectively arranged opposite to the two focusing driving coils.

6. The motor drive device according to claim 5, wherein, The third side wall and the fourth side wall are respectively provided with first accommodation grooves, the two focusing drive coils are respectively arranged in the two first accommodation grooves, and the two focusing magnets are respectively arranged outside the moving seat.

7. The motor drive device according to claim 6, wherein, The two anti-shake drive coils are respectively arranged in the first side wall and the second side wall.

8. The motor drive device according to claim 7, characterized in that, The side of the first side wall close to the mounting seat and the side of the second side wall close to the mounting seat are respectively provided with storage grooves. The two anti-shake drive coils and the two anti-shake magnets are both located in the corresponding storage grooves. The anti-shake magnets are fixed to the groove walls of the corresponding storage grooves, and the anti-shake drive coils are fixed to the mounting seat.

9. The motor drive device according to claim 8, characterized in that, A second accommodation groove communicating with the two first accommodation grooves is recessed in the outer side wall of the supporting seat. The focusing drive module further includes a focusing circuit board arranged in the second accommodation groove and electrically connected to the focusing drive coil. The anti-shake drive module further includes an anti-shake circuit board arranged on the side of the mounting seat facing the supporting seat. The anti-shake drive coil is arranged on the anti-shake circuit board, and the anti-shake circuit board is electrically connected to the focusing circuit board and the anti-shake drive coil respectively.

10. An imaging module, characterized in that, Comprising: A photosensitive component; A lens component arranged on the light-sensing path of the photosensitive component and cooperating with the photosensitive component; And The motor driving device according to any one of claims 1-9, wherein the motor driving device is arranged around the lens component.

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