Camera apparatus and electronic device

Abstract

The present application relates to the field of camera apparatuses, and in particular to a camera apparatus and an electronic device. The camera apparatus of the present application comprises a lens module, a focusing driving module, and an anti-shake driving module which are sequentially fixed into a whole. The lens module, the focusing driving module, and the anti-shake driving module are three independent modules, and during assembling, each module is assembled separately, and then the three modules are assembled together, so that assembling is easier, and the product yield can be effectively improved. The focusing driving module comprises a lens barrel for fixing the lens module, a first support for receiving the lens barrel, a focusing coil and a focusing magnetic steel which are correspondingly arranged, and a first circuit board, wherein the first circuit board is electrically connected to the focusing coil. The anti-shake driving module comprises an image sensor, an anti-shake coil and an anti-shake magnetic steel which are correspondingly arranged, and a planar second circuit board, wherein the second circuit board is in a planar shape, which can effectively reduce the thicknesses of the anti-shake driving module and the camera apparatus.

Description

Camera device and electronic equipment Technical Field

[0001] The present application relates to the field of camera devices, and in particular to a camera device and electronic equipment. Background Art

[0002] The optical systems of common handheld optical products currently on the market, such as digital cameras, video cameras, and mobile phones, are composed of an optical lens module and a camera driver module. In addition to focusing, camera driver modules are susceptible to external forces that can cause shaking during focusing or capturing images. This can occur due to vibrations caused by handheld devices, vehicle movement, and environmental factors. This can lead to unclear or blurred images. Therefore, camera driver modules often also have an anti-shake function. Due to their integration of multiple functions, the structure of camera driver modules is relatively complex, consisting of many components. Consequently, the assembly process is also complex, and inadvertent failure can easily lead to substandard assembly of handheld optical products, affecting product yield. Technical issues

[0003] The purpose of this application is to provide a camera device and an electronic device to solve the technical problems in the prior art that the camera device is difficult to assemble and has a low product yield. Technical Solutions

[0004] The technical solution of the present application is as follows: A camera device, which includes a lens module, a focus drive module and an anti-shake drive module fixed in sequence into one body; the focus drive module includes a lens barrel for fixing the lens module, a first bracket for accommodating the lens barrel, a corresponding focus coil and focus magnet, and a first circuit board, the first circuit board is electrically connected to the focus coil so that the focus coil and the focus magnet interact to drive the lens barrel to move in the first bracket along the optical axis direction of the lens module; the anti-shake drive module includes an image sensor, a corresponding anti-shake coil and anti-shake magnet, and a planar second circuit board, the second circuit board is electrically connected to the image sensor and the anti-shake coil respectively, so that the anti-shake coil and the anti-shake magnet interact to drive the image sensor to move around the optical axis direction or along the direction perpendicular to the optical axis relative to the lens module.

[0005] Preferably, the anti-shake drive module also includes a spring plate and a first shell for accommodating the image sensor, anti-shake coil, anti-shake magnet, second circuit board and spring plate, the spring plate includes a spring plate body and a spring plate fixing part elastically connected to the outside of the spring plate body, the second circuit board includes a circuit board body and a circuit board fixing part elastically connected to the outside of the circuit board body, the circuit board fixing part and the spring plate fixing part are both fixed to the first shell, a sinking through hole is opened on the circuit board body for cooperating with the image sensor, the image sensor is connected in the sinking through hole and fits with the spring plate body, the anti-shake coil and anti-shake magnet are fixed to the circuit board body and the first shell respectively.

[0006] Preferably, a sunken surface lower than the surface of the spring plate body is formed on the spring plate body, and the sunken surface is formed by half-etching the surface of the spring plate body, and the image sensor is attached to the sunken surface of the spring plate body.

[0007] Preferably, the anti-shake drive module also includes a second bracket housed in the first shell, one end of the second bracket along the optical axis direction is fixed to the circuit board body, and there is a gap between the other end and the first shell, and the second bracket is provided with a first limiting groove for accommodating the anti-shake coil.

[0008] Preferably, a mounting hole suitable for the image sensor to pass through is provided on the first shell, and a plurality of bent portions bent toward the second bracket are symmetrically formed around the mounting hole, and a docking groove corresponding one-to-one with the bent portion is provided on the second bracket, and the docking groove is filled with a first damping glue that at least partially wraps the bent portion.

[0009] Preferably, an anti-collision boss is formed on the surface of the second bracket facing the first shell.

[0010] Preferably, the focusing coil is wound around the outside of the lens barrel, the focusing magnet is fixed in the first bracket, and the focusing drive module also includes two springs respectively supported at the two ends of the lens barrel along the optical axis direction, each of the springs includes a spring body connected to the lens barrel, and a first connecting part, a second connecting part and a third connecting part respectively bent outward from the spring body, the first connecting parts of the two springs are respectively connected to the two ends of the first bracket along the optical axis direction, and the second connecting parts and the third connecting parts of the two springs are respectively connected to the focusing coil and the first circuit board to form a loop.

[0011] Preferably, the focus drive module also includes a second shell for accommodating the lens barrel, the first bracket, the focus coil, the focus magnet and the first circuit board. The first bracket is provided with a second limiting groove facing the second shell at one end along the optical axis, and the second limiting groove is filled with a second damping glue. The lens barrel has a limiting portion extending outward from the lens barrel, and the limiting portion corresponds to the second limiting groove one by one and is restricted between the second shell and the corresponding second limiting groove. Each of the limiting portions is provided with a step structure for avoiding the second damping glue, and the end faces of each of the limiting portions along the optical axis are respectively constructed as anti-collision surfaces.

[0012] Preferably, the first circuit board is electrically connected to the second circuit board, and the focus drive module also includes a drive chip and a chip magnet that cooperate with each other to detect the position of the lens barrel. The drive chip is electrically connected to the first circuit board, and the chip magnet is fixed on the lens barrel and arranged opposite to the drive chip.

[0013] An electronic device comprises a device body and any one of the above-mentioned camera devices, wherein the camera device is arranged on the device body. Beneficial effects

[0014] The beneficial effects of the present application are as follows: the camera device and electronic equipment of the present application include a lens module, a focus drive module and an anti-shake drive module fixed in sequence into one body; the focus drive module includes a lens barrel for fixing the lens module, a first bracket for accommodating the lens barrel, a corresponding focus coil and a focus magnet, and a first circuit board, the first circuit board is electrically connected to the focus coil so that the focus coil and the focus magnet interact with each other to drive the lens barrel to move along the optical axis direction of the lens module in the first bracket; the anti-shake drive module includes an image sensor, a corresponding anti-shake coil and an anti-shake magnet, and a planar second circuit board, the second circuit board is electrically connected to the image sensor and the anti-shake coil respectively so that the anti-shake coil and the anti-shake magnet interact with each other to drive the image sensor The device moves relative to the lens module around the optical axis or along the direction perpendicular to the optical axis; through the above method, the lens module, the focus drive module and the anti-shake drive module are three independent modules. During assembly, each module is assembled separately, and then the three modules are assembled together, which is easier to assemble and can effectively improve the product yield; and the focus drive module can drive the lens barrel to move in the first bracket along the optical axis direction of the lens module to achieve the focusing effect, and the anti-shake drive module can drive the image sensor to move relative to the lens module around the optical axis direction or along the direction perpendicular to the optical axis to achieve the anti-shake effect, which can effectively ensure the camera quality; and the second circuit board is planar, which can effectively reduce the thickness of the anti-shake drive module and the camera device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a perspective view of the camera device of the present application;

[0016] FIG2 is a top view of the camera device of the present application;

[0017] FIG3 is a schematic diagram of the AA cross-sectional structure of FIG2 ;

[0018] FIG4 is an exploded view of the camera device of the present application;

[0019] FIG5 is an exploded view of a focus drive module in the camera device of the present application;

[0020] FIG6 is a top view of the focus drive module in the camera device of the present application with the second housing removed;

[0021] FIG7 is a schematic diagram of the BB cross-sectional structure of FIG6 ;

[0022] FIG8 is a perspective view of FIG7;

[0023] FIG9 is a perspective view of the focus drive module in the camera device of the present application with the second housing removed;

[0024] FIG10 is a perspective view of the focus drive module in the camera device of the present application with the second housing removed;

[0025] FIG11 is a perspective view of the focus drive module in the camera device of the present application with the second housing and the first bracket removed;

[0026] FIG12 is a perspective view of the focus drive module in the camera device of the present application with the second housing and the first bracket removed;

[0027] FIG13 is a perspective view of an anti-shake driving module in the camera device of the present application;

[0028] FIG14 is an exploded view of the anti-shake drive module in the camera device of the present application;

[0029] FIG15 is a three-dimensional diagram of the anti-shake drive module in the camera device of the present application without the first shell, anti-shake magnet, filter and filter support frame. Modes for Carrying Out the Invention

[0030] The present application will be further described below with reference to the accompanying drawings and implementation methods.

[0031] It should be noted that the terms "first," "second," and "third" in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to such process, method, product, or device.

[0032] All directional indications in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom...) are only used to explain the relative positional relationship between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. When an element is referred to as being "fixed on" or "disposed on" another element, the element can be directly on the other element or there may be a central element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time.

[0033] The embodiment of the present application provides a camera device 100 including a lens module 10, a focus drive module 20 and an anti-shake drive module 30. Referring to Figures 1 to 15, the lens module 10, the focus drive module 20 and the anti-shake drive module 30 are sequentially arranged along the optical axis and fixed as a whole; the focus drive module 20 includes a lens barrel 21, a first bracket 22, a focus coil 23, a focus magnet 24 and a first circuit board 25. The lens barrel 21 is used to fix the lens module 10, the first bracket 22 is used to accommodate the lens barrel 21, the focus coil 23 and the focus magnet 24 are correspondingly arranged, and the first circuit board 25 is electrically connected to the focus coil 23. When the focus coil 23 is energized, the focus coil 23 can generate a magnetic force with the focus magnet 24, thereby driving the lens barrel 21 along the lens in the first bracket 22. The head module 10 moves in the direction of the optical axis; the anti-shake drive module 30 includes an image sensor 31, an anti-shake coil 32, an anti-shake magnet 33 and a second circuit board 34. The anti-shake coil 32 and the anti-shake magnet 33 are arranged correspondingly. The second circuit board 34 is planar. The second circuit board 34 is electrically connected to the anti-shake coil 32. The second circuit board 34 is also electrically connected to the image sensor 31. When the anti-shake coil 32 is energized, the anti-shake coil 32 can generate a magnetic force with the anti-shake magnet 33, thereby driving the image sensor 31 to move relative to the lens module 10 around the optical axis, or driving the image sensor 31 to move relative to the lens module 10 in the direction perpendicular to the optical axis.

[0034] In this embodiment, please refer to Figures 1 and 4. The lens module 10, the focus drive module 20 and the anti-shake drive module 30 are three independent modules. During assembly, each module is assembled separately, and then the three modules are assembled together, which is easier to assemble and can effectively improve the product yield; and the focus drive module 20 can drive the lens barrel 21 to move along the optical axis direction of the lens module 10 in the first bracket 22 to achieve a focusing effect, and the anti-shake drive module 30 can drive the image sensor 31 to move around the optical axis direction or along the direction perpendicular to the optical axis relative to the lens module 10 to achieve an anti-shake effect, which can effectively ensure the camera quality; and the second circuit board 34 is planar, which can effectively reduce the thickness of the anti-shake drive module 30 and the camera device 100.

[0035] In some examples, the first circuit board 25 may be a Flexible Printed Circuit (FPC), which is easier to assemble.

[0036] In some examples, the second circuit board 34 may be an FPC, which is easier to assemble.

[0037] In some preferred embodiments, please refer to Figures 13 to 15. The anti-shake drive module 30 also includes a spring plate 35 and a first shell 36. The first shell 36 is used to accommodate the image sensor 31, the anti-shake coil 32, the anti-shake magnet 33, the second circuit board 34 and the spring plate 35. The spring plate 35 is used to support and fix the image sensor 31. The spring plate 35 includes a spring plate body 351 and a spring plate fixing portion 352. The spring plate fixing portion 352 is elastically connected to the outside of the spring plate body 351. The second circuit board 34 includes a circuit board body 341 and a circuit board fixing portion 342. The circuit board fixing portion 342 is elastically connected to the outside of the circuit board body 341. The circuit board fixing portion 342 and the spring plate fixing portion 352 are both fixed to the first shell 36. A sinking through hole 3411 is opened on the circuit board body 341. The sinking through hole 3411 cooperates with the image sensor 31. The image sensor 31 is connected in the sinking through hole 3411 and fits with the spring plate body 351. The anti-shake coil 32 is fixed on the circuit board body 341, and the anti-shake magnet 33 is fixed on the first shell 36.

[0038] In this embodiment, the image sensor 31 is retrofitted and attached to the spring plate body 351. To facilitate retrofitting of the image sensor 31, a sunken through-hole 3411 is provided in the circuit board body 341, creating a hollow configuration for the circuit board body 341 and effectively lowering the image sensor 31 as far as possible. In one example, a sunken surface 3511 is formed on the spring plate body 351. The sunken surface 3511 is lower than the surface of the spring plate body 351 and is formed by half-etching the surface of the spring plate body 351. The image sensor 31 is attached to the sunken surface 3511 of the spring plate body 351.

[0039] In this embodiment, the anti-shake driving module 30 adopts a structure combining a flat second circuit board 34 and a spring plate 35, which can not only effectively reduce the thickness of the anti-shake driving module 30, but also effectively support the image sensor 31, with a small size and stable structure.

[0040] In some more preferred embodiments, please refer to Figures 13 to 15, the anti-shake drive module 30 also includes a second bracket 37, the second bracket 37 is accommodated in the first shell 36, one end of the second bracket 37 along the optical axis direction is fixed to the circuit board body 341, and there is a gap between the other end of the second bracket 37 along the optical axis direction and the first shell 36, and a first limiting groove 371 is opened on the second bracket 37, and the first limiting groove 371 is used to avoid and accommodate the anti-shake coil 32.

[0041] In some examples, referring to Figures 13 to 15 , the first housing 36 has a mounting hole 361 for the image sensor 31 to pass through. Several bent portions 362 are symmetrically formed around the mounting hole 361, each bent toward the second bracket 37. The second bracket 37 has several docking slots 372, each corresponding to each of the bent portions 362. The docking slots 372 are filled with a first damping adhesive that at least partially encapsulates the bent portions 362. This first damping adhesive provides damping for the bent portions 362, thereby cushioning the relative displacement between the first housing 36 and the second bracket 37. In some examples, to further stabilize the anti-shake drive module 30, four bent portions 362 are formed around the mounting hole 361, and correspondingly, four docking slots 372 are formed on the second bracket 37.

[0042] In some examples, referring to Figures 14 and 15 , the surface of the second bracket 37 facing the first housing 36 is formed with an anti-collision boss 373. When the second bracket 37 moves under the action of the anti-shake coil 32 and collides with the first housing 36, only the anti-collision boss 373 collides with the first housing 36. In some examples, referring to Figures 14 and 15 , multiple anti-collision bosses 373 are provided, distributed at the corners of the second bracket 37 , providing both anti-collision and anti-rotation functions.

[0043] In some more preferred embodiments, please refer to Figures 14 and 15, the anti-shake drive module 30 also includes a cover body 38 that cooperates with the first shell 36, and the cover body 38 is fixedly connected to the first shell 36. The cover body 38 is used to confine the image sensor 31, the anti-shake coil 32, the anti-shake magnet 33, the second bracket 37, the second circuit board 34 and the spring plate 35 within the first shell 36.

[0044] In some examples, in order to prevent the cover body 38 from interfering with the movement of the spring plate body 351, please refer to Figure 14, the anti-shake drive module 30 also includes a gasket 381, which is also accommodated in the first shell 36, and the gasket 381 is fixed to the cover body 38, and the gasket 381 is also fixed to the spring plate fixing portion 352.

[0045] In some preferred embodiments, referring to FIG. 13 and FIG. 14 , the anti-shake driving module 30 further includes a fixedly connected optical filter 39 and an optical filter support frame 391 , and the optical filter support block 391 is also fixed to the circuit board body 341 .

[0046] In some preferred embodiments, referring to Figures 3, 5, 7, 8, 11, and 12, a focus coil 23 is wound around the outside of the lens barrel 21, a focus magnet 24 is fixed within the first bracket 22, and the focus drive module 20 further includes a spring 26a and a spring 26b, which are respectively supported at both ends of the lens barrel 21 along the optical axis. The spring 26a includes a spring body 261, a first connecting portion 262, a second connecting portion 263, and a third connecting portion 264. The spring body 261 is connected to the lens barrel 21, and the first connecting portion 262, the second connecting portion 263, and the third connecting portion 264 are respectively bent and extended outward from the spring body 261. The first connecting portion 262 is respectively connected to both ends of the first bracket 22 along the optical axis, the second connecting portion 263 is connected to the coil, and the third connecting portion 264 is connected to the first circuit board 25. The spring clip 26b includes a main spring clip body 261, a first connecting portion 262, a second connecting portion 263, and a third connecting portion 264. The main spring clip body 261 is connected to the lens barrel 21. The first connecting portion 262, the second connecting portion 263, and the third connecting portion 264 each extend outward from the main spring clip body 261. The first connecting portion 262 is connected to both ends of the first bracket 22 along the optical axis, the second connecting portion 263 is connected to the focus coil 23, and the third connecting portion 264 is connected to the first circuit board 25. The spring clip 26a, the focus coil 23, the spring clip 26b, and the first circuit board 25 are electrically connected to form a circuit, implementing closed-loop AF control. In some examples, to ensure more stable movement of the lens barrel 21, the spring clip 26a includes three first connecting portions 262, and the third connecting portion 264, in addition to being connected to the first circuit board 25, is also connected to the first bracket 22. To facilitate connecting the spring piece 26a to the first bracket 22, and the spring piece 26b to the first bracket 22, a plurality of first positioning posts 222 are formed on the first bracket 22. First positioning holes 265 are formed on the first connecting portion 262 and the third connecting portion 264, which plug and mate with the first positioning posts 222. The first positioning holes 265 are provided on the first connecting portion 262 and the third connecting portion 264. Similarly, a plurality of second positioning posts 212 are formed on the lens barrel 21, and second positioning holes 266 are formed on the spring piece body 261, which plug and mate with the second positioning posts 212.

[0047] In some more preferred embodiments, please refer to Figures 3, 5, 7, 8, 11 and 12, the focus drive module 20 also includes several groups of magnetic conductive plates 27, and one group of magnetic conductive plates 27 is corresponding to one focus magnet 24. Each group of magnetic conductive plates 27 includes two magnetic conductive plates 27, and the two magnetic conductive plates 27 are respectively located at the two ends of the corresponding focus magnet 24 along the optical axis direction to prevent the magnetic lines of force of the focus magnet 24 from leaking, thereby improving the driving performance of the focus magnet 24.

[0048] In some preferred embodiments, please refer to Figures 1 to 5, the focus drive module 20 also includes a second shell 28, which is used to accommodate the lens barrel 21, the first bracket 22, the focus coil 23, the focus magnet 24 and the first circuit board 25. The first bracket 22 is provided with at least one second limiting groove 221 at one end along the optical axis, and each second limiting groove 221 is arranged facing the second shell 28. Each second limiting groove 221 is filled with a second damping glue. The lens barrel 21 has at least one limiting portion 211 extending outward from the lens barrel 21, and the limiting portion 211 corresponds to the second limiting groove 221 one by one. Each limiting portion 211 is limited between the second shell 28 and the corresponding second limiting groove 221. The second damping glue can provide a damping effect for the limiting portion 211, thereby providing a buffering effect for the relative displacement between the lens barrel 21 and the first bracket 22.

[0049] In some preferred embodiments, please refer to Figures 7 and 8, the end face of each limiting portion 211 along the optical axis direction is constructed as an anti-collision surface 2111 that cooperates with the second shell 28, and the end face of each limiting portion 211 along the optical axis direction is constructed as an anti-collision surface 2112 that cooperates with the first bracket 22, specifically, the anti-collision surface 2112 cooperates with the bottom surface 2211 of the second limiting groove 221.

[0050] In some examples, please refer to FIG. 5 , FIG. 7 and FIG. 8 , each limiting portion 211 is provided with a step structure 2113 , and the step structure 2113 avoids the second damping glue from being affected during collision.

[0051] In some preferred embodiments, the first circuit board 25 is electrically connected to the second circuit board 34 , that is, the spring 26 a , the focus coil 23 , and the spring 26 b are also electrically connected to the second circuit board 34 via the first circuit board 25 .

[0052] In some preferred embodiments, referring to FIG. 12 , the focus drive module 20 further includes a driver chip 251 and a chip magnet 29 . The driver chip 251 and the chip magnet 29 cooperate to detect the position of the lens barrel 21. The driver chip 251 is electrically connected to the first circuit board 25 , and the chip magnet 29 is fixed to the lens barrel 21 and disposed opposite the driver chip 251 . The driver chip 251 can control the current of the focus coil 23 while detecting changes in the position of the chip magnet 29 . In some examples, the driver chip 251 may be an AK7316.

[0053] An embodiment of the present application further provides an electronic device, including a device body and any one of the above-mentioned camera devices 100 , wherein the camera device 100 is disposed on the device body.

[0054] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.

Claims

1. An imaging device, characterized in that, the imaging device includes a lens module, a focusing drive module, and an anti-shake drive module that are fixedly integrated in sequence; the focusing drive module includes a lens barrel that fixes the lens module, a first bracket that houses the lens barrel, a corresponding focusing coil and a focusing magnet, and a first circuit board, the first circuit board is electrically connected to the focusing coil, so that the focusing coil and the focusing magnet interact to drive the lens barrel to move along the optical axis direction of the lens module in the first bracket; the anti-shake drive module includes an image sensor, a corresponding anti-shake coil and an anti-shake magnet, and a planar second circuit board, the second circuit board is electrically connected to the image sensor and the anti-shake coil respectively, so that the anti-shake coil and the anti-shake magnet interact to drive the image sensor to move relative to the lens module around the optical axis direction or along the direction perpendicular to the optical axis.

2. The imaging device according to claim 1, characterized in that, the anti-shake drive module further includes a spring plate, and a first housing that houses the image sensor, the anti-shake coil, the anti-shake magnet, the second circuit board and the spring plate, the spring plate includes a spring plate body and a spring plate fixing part elastically connected to the outside of the spring plate body, the second circuit board includes a circuit board body and a circuit board fixing part elastically connected to the outside of the circuit board body, both the circuit board fixing part and the spring plate fixing part are fixed to the first housing, a sinking through hole that cooperates with the image sensor is formed on the circuit board body, the image sensor is connected in the sinking through hole and is attached to the spring plate body, and the anti-shake coil and the anti-shake magnet are respectively fixed to the circuit board body and the first housing.

3. The imaging device according to claim 2, characterized in that, a sunken table surface lower than the surface of the spring plate body is formed on the spring plate body, the sunken table surface is formed by performing a semi-etching process on the surface of the spring plate body, and the image sensor is attached to the sunken table surface of the spring plate body.

4. The imaging device according to claim 2, characterized in that, the anti-shake drive module further includes a second bracket housed in the first housing, one end of the second bracket along the optical axis direction is fixed to the circuit board body, and there is a gap between the other end and the first housing, and a first limiting groove for housing the anti-shake coil is formed on the second bracket.

5. The imaging device according to claim 4, characterized in that, an installation hole suitable for the image sensor to pass through is formed on the first housing, a plurality of bending parts bent towards the direction of the second bracket are symmetrically formed around the circumference of the installation hole, a docking groove corresponding to the bending parts one by one is formed on the second bracket, and at least part of the first damping glue that wraps the bending parts is filled in the docking groove.

6. The imaging device according to claim 4, characterized in that, a collision prevention convex platform is formed on the surface of the second bracket facing the first housing.

7. The imaging device according to claim 1, characterized in that, The focusing coil is wound outside the lens barrel, the focusing magnet is fixed inside the first bracket, and the focusing drive module further includes two elastic pieces respectively supported at two ends of the lens barrel along the optical axis direction. Each elastic piece respectively includes an elastic piece body connected to the lens barrel, and a first connecting portion, a second connecting portion, and a third connecting portion respectively bent and extending outward from the elastic piece body. The first connecting portions of the two elastic pieces are respectively connected to two ends of the first bracket along the optical axis direction, and the second connecting portions and the third connecting portions of the two elastic pieces are respectively connected to the focusing coil and the first circuit board to form a circuit.

8. The imaging device according to claim 1, wherein, the focusing drive module further includes a second housing accommodating the lens barrel, the first bracket, the focusing coil, the focusing magnet, and the first circuit board. One end of the first bracket along the optical axis direction is provided with a second limiting groove facing the second housing, and the second limiting groove is filled with second damping glue. The lens barrel has a limiting portion extending outward from the lens barrel, and the limiting portion is in one-to-one correspondence and cooperation with the second limiting groove and is restricted between the second housing and the corresponding second limiting groove. Each limiting portion is respectively provided with a step structure for avoiding the second damping glue, and the end faces of both ends of each limiting portion along the optical axis direction are respectively configured as anti-collision surfaces.

9. The imaging device according to claim 1, wherein, the first circuit board is electrically connected to the second circuit board, and the focusing drive module further includes a drive chip and a chip magnet that cooperate with each other to detect the position of the lens barrel. The drive chip is electrically connected to the first circuit board, and the chip magnet is fixed on the lens barrel and is disposed opposite to the drive chip.

10. An electronic device, wherein, it includes a device main body and the imaging device according to any one of claims 1-9, and the imaging device is disposed on the device main body.

Images