CN213581532U

CN213581532U - Camera shooting module

Info

Publication number: CN213581532U
Application number: CN202021245805.XU
Authority: CN
Inventors: 郭顺; 史卫领; 王洪兴
Original assignee: Chengrui Optics Changzhou Co Ltd
Current assignee: AAC Optics Changzhou Co Ltd; Chengrui Optics Changzhou Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-06-29
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a camera module, which comprises a shell with a holding cavity, a lens component arranged in the holding cavity, an elastic supporting piece used for connecting the lens component and the shell, and an anti-shake driving piece arranged in the holding cavity and used for driving the lens component to move; the shell comprises a bottom plate and a side plate which is arranged on the bottom plate and circumferentially surrounds the lens assembly, and the side plate and the bottom plate are enclosed to form the accommodating cavity; the anti-shake driving piece is arranged between the lens assembly and the side plates and comprises a coil and a magnet, the coil and the magnet are arranged in a staggered mode at opposite intervals, the plane where the coil is located is parallel to the optical axis direction of the camera module, and the magnetic field direction of the magnet is perpendicular to the optical axis direction of the camera module. The utility model provides a module of making a video recording has reduced thickness when realizing the anti-shake.

Description

Camera shooting module

[ technical field ] A method for producing a semiconductor device

The utility model relates to an optical imaging technical field especially relates to a module of making a video recording.

[ background of the invention ]

With the development of imaging technology and the rise of electronic products with imaging functions, optical lenses are widely used in various electronic products. Typically, light is taken directly from the object side, along the optical axis through the lens assembly to the image side, and the object is imaged by the lens assembly. However, during the shooting process, there is often a shake, which causes the optical axis path of the lens assembly to deviate from the normal optical axis path, resulting in a decrease in image definition, and therefore, various anti-shake schemes have been proposed to solve the problem of lens assembly shake. However, the existing solutions are to adjust the position of the lens assembly by side thrust by mounting the anti-shake driving assembly on the side of the lens assembly. In addition, the bottom of the lens assembly needs to have a pivot structure to facilitate rotation of the lens assembly about the pivot structure. The scheme has to be provided with a bottom fulcrum structure to conveniently realize the angle adjustment of the lens assembly.

Therefore, there is a need for a compact camera module that can adjust the position of the lens assembly in all directions without additional pivot structure at the bottom of the lens assembly.

[ Utility model ] content

An object of the utility model is to provide a camera module to solve current camera module and need establish the technical problem of fulcrum structure in addition.

The technical scheme that one of the purposes of the utility model provides as follows: a camera module comprises a shell with an accommodating cavity, a lens assembly arranged in the accommodating cavity, an elastic supporting piece used for connecting the lens assembly and the shell, and an anti-shake driving piece arranged in the accommodating cavity and used for driving the lens assembly to move; the shell comprises a bottom plate and a side plate which is arranged on the bottom plate and circumferentially surrounds the lens assembly, and the side plate and the bottom plate are enclosed to form the accommodating cavity; the anti-shake driving piece is arranged between the lens assembly and the side plates and comprises a coil and a magnet, the coil and the magnet are arranged in a staggered mode at opposite intervals, the plane where the coil is located is parallel to the optical axis direction of the camera module, and the magnetic field direction of the magnet is perpendicular to the optical axis direction of the camera module.

Further, the number of coils and magnets is not equal.

Furthermore, the coil is provided with one, the magnet is two magnet steels arranged at intervals, and the directions of the magnetic fields of the two magnet steels are opposite.

Further, the coil comprises a first main body part and a second main body part which are arranged in parallel at intervals, and a first connecting part and a second connecting part which are used for connecting the first main body part and the second main body part; the arrangement directions of the two magnetic steels are parallel to the first main body part and the second main body part, and any one of the first main body part and the second main body part is opposite to the two magnetic steels.

Further, the coil is equipped with two, two the coil interval sets up, and two the magnetic field opposite direction of coil, the magnet is a magnet steel.

Further, the coil comprises a first main body part and a second main body part which are arranged in parallel at intervals, and a first connecting part and a second connecting part which are used for connecting the first main body part and the second main body part; the two first main body parts form a straight line, the two second main body parts form a straight line, and the magnetic steel is arranged opposite to the two first main body parts or opposite to the two second main body parts.

Further, the first main body portion and the second main body portion are arranged in parallel to the optical axis direction of the camera module.

Furthermore, the anti-shake driving piece further comprises a first fixed block arranged on the lens assembly and a second fixed block arranged on one side of the side plate facing the containing cavity, the magnet is fixed on the lens assembly through the first fixed block, and the coil is fixed on the side plate through the second fixed block.

Furthermore, the anti-shake driving piece further comprises a first fixed block arranged on the lens assembly and a second fixed block arranged on one side of the side plate facing the containing cavity, the coil is fixed on the lens assembly through the first fixed block, and the magnet is fixed on the side plate through the second fixed block.

Further, the anti-shake driving piece is equipped with two at least, and is adjacent the anti-shake driving piece interval sets up.

Further, it is adjacent anti-shake driving piece equidistant interval sets up, and every anti-shake driving piece distance the interval of bottom plate equals.

Further, the shell further comprises a top plate and a through hole corresponding to the lens assembly, and the through hole is formed in the top plate.

Further, the elastic support member comprises an elastic connecting portion, a first annular portion fixed to the lens assembly, and a second annular portion fixed to the side plate, and the elastic connecting portion is connected between the first annular portion and the second annular portion.

Further, the number of the elastic connecting portions is at least two, and each elastic connecting portion extends from the first annular portion to the second annular portion along an arc-shaped track.

The beneficial effects of the utility model reside in that: the lens assembly is supported in the shell by arranging the elastic supporting piece, and the collision between the lens assembly and the shell is avoided; locate between lens subassembly and the curb plate through the anti-shake driving piece that will include coil and magnet, the coil is relative and dislocation set with the magnet interval, the plane at coil place is on a parallel with the optical axis direction of making a video recording the module, the magnetic field direction perpendicular to of magnet makes a video recording the optical axis direction of module, the anti-shake driving piece produces the drive power that acts on lens subassembly and optical axis direction parallel, combine elastic support piece to the effort of lens subassembly, need not establish in addition the fulcrum structure in the lens subassembly bottom again and make the lens subassembly rotate around this fulcrum structure when the position adjustment when realizing that the module of making a video recording has the anti-shake function, the thickness of the module of making. Therefore, the utility model provides a module of making a video recording has reduced thickness when realizing the anti-shake, the position of convenient, omnidirectional adjustment lens subassembly.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a camera module according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a coil according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of the lens assembly, the anti-shake driving member, and the elastic supporting member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a lens assembly and an anti-shake driving member according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a lens assembly and an elastic supporting member according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of the camera module provided in the second embodiment of the present invention at the same position as the camera module provided in the first embodiment of the present invention;

fig. 8 is a schematic structural diagram of the lens assembly, the anti-shake driving member, and the elastic supporting member according to the second embodiment of the present invention.

In the figure: 100. a camera module; 1. a housing; 11. an accommodating cavity; 12. a base plate; 13. a side plate; 14. a top plate; 141. a through hole; 2. a lens assembly; 3. an elastic support member; 31. an elastic connection portion; 32. a first annular portion; 33. a second annular portion; 4. an anti-shake drive member; 41. a coil; 411. a first main body portion; 412. a second main body portion; 413. a first connection portion; 414. a second connecting portion; 42. magnetic steel; 43. a first fixed block; 44. a second fixed block; 5. a circuit board.

[ detailed description ] embodiments

The present invention will be described in detail with reference to fig. 1 to 8.

Example one

Referring to fig. 1 to 6, a camera module 100 according to an embodiment of the present invention includes a housing 1 having an accommodating cavity 11, a lens assembly 2 disposed in the accommodating cavity 11, an elastic supporting member 3 for connecting the lens assembly 2 and the housing 1, and an anti-shake driving member 4 disposed in the accommodating cavity 11 for driving the lens assembly 2 to move; the shell 1 comprises a bottom plate 12 and a side plate 13 which is arranged on the bottom plate 12 and surrounds the lens component 2 in the circumferential direction, and the side plate 13 and the bottom plate 12 enclose to form an accommodating cavity 11; the anti-shake driving member 4 is arranged between the lens assembly 2 and the side plate 13, and includes a coil 41 and a magnet, the coil 41 and the magnet are arranged in a staggered manner, the plane where the coil 41 is located is parallel to the optical axis direction of the camera module 100, and the magnetic field direction of the magnet is perpendicular to the optical axis direction of the camera module 100. The lens component 2 is supported in the shell 1 by arranging the elastic supporting piece 3, so that collision with the shell 1 is avoided; locate between lens subassembly 2 and curb plate 13 through the anti-shake driving piece 4 that will include coil 41 and magnet, coil 41 is relative and dislocation set with the magnet interval, the plane at coil 41 place is on a parallel with the optical axis direction of making a video recording module 100, the magnetic field direction perpendicular to of magnet makes a video recording module 100's optical axis direction, anti-shake driving piece 4 produces the drive power parallel with the optical axis direction that acts on lens subassembly 2, combine elastic support piece 3 to lens subassembly 2's effort, need not establish the fulcrum structure in addition in lens subassembly 2 bottom again when realizing that module 100 has the anti-shake function and make lens subassembly 2 rotate around this fulcrum structure when the position adjustment. Therefore, the embodiment of the utility model provides a module of making a video recording 100 need not to establish the fulcrum structure in addition in it when realizing the anti-shake function, has reduced module of making a video recording 100's thickness, position that can be convenient, omnidirectional adjustment lens subassembly 2.

When coil 41 to anti-shake driving piece 4 circular telegram, can produce the drive power that is on a parallel with the optical axis direction between coil 41 and the magnet, the size of control coil 41 electric current can control the size of the drive power of anti-shake driving piece 4 to make the position that lens subassembly 2 and anti-shake driving piece 4 correspond receive the effect of different drive power, under the effect of drive power, lens subassembly 2 produces and removes the shake that arouses in order to compensate by external factors, and then realize the anti-shake function to lens subassembly 2.

Preferably, the number of coils 41 and magnets is not equal. In the present embodiment, the coil 41 is provided with one, the magnet is two magnetic steels 42 arranged at intervals, and the magnetic fields of the two magnetic steels 42 are opposite in direction.

Referring to fig. 3 and 4, the coil 41 is in a racetrack shape, and includes two first main body portions 411 and two second main body portions 412 arranged in parallel at intervals, and two first connection portions 413 and two second connection portions 414 connecting the first main body portions 411 and the second main body portions 412; the arrangement direction of the two magnetic steels 42 is parallel to the first main body part 411 and the second main body part 412, and any one of the first main body part 411 and the second main body part 412 is arranged opposite to the two magnetic steels 42. The first and second

main bodies

411 and 412 are disposed in parallel to the optical axis direction of the image pickup module 100. It is understood that in other embodiments, any one of the first connection portion 413 and the second connection portion 414 may be disposed opposite to the two magnetic steels 42. When coil 41 to anti-shake driving piece 4 circular telegram, two drive power that produce the direction difference respectively between two magnet steel 42 in same coil 41 and same magnet, thereby make lens subassembly 2 and the effect of the position that anti-shake driving piece 4 corresponds receive the drive power that is on a parallel with the optical axis direction, the size of control coil 41 electric current, can control the size of the drive power of anti-shake driving piece 4, thereby make the position that lens subassembly 2 and anti-shake driving piece 4 correspond receive the effect of different drive powers, under the effect of drive power, lens subassembly 2 produces the shake that removes and arouse with the compensation by external factors, and then realize the anti-shake function to lens subassembly 2.

It is understood that in other embodiments, two coils 41 are provided, two coils 41 are spaced apart, and the magnetic fields of the two coils 41 are opposite in direction, and the magnet is a magnetic steel 42. Specifically, two first main body portions 411 form a straight line, two second main body portions 412 form a straight line, and the magnetic steel 42 is arranged opposite to the two first main body portions 411, or the magnetic steel 42 is arranged opposite to the two second main body portions 412.

Preferably, the anti-shake driving member 4 further includes a first fixing block 43 mounted on the lens assembly 2 and a second fixing block 44 mounted on one side of the side plate 13 facing the accommodating cavity 11, the magnet is fixed to the lens assembly 2 through the first fixing block 43, and the coil 41 is fixed to the side plate 13 through the second fixing block 44. It will be appreciated that the first holding block 43 may be a part of the lens assembly 2, or be provided integrally with the lens assembly 2, or be mounted to the lens assembly 2; the second fixing block 44 may be a part of the housing 1, or integrally formed with the housing 1, or mounted on the housing 1.

Preferably, at least two anti-shake driving members 4 are provided, and adjacent anti-shake driving members 4 are spaced apart. In other embodiments, only one anti-shake drive member 4 may be provided.

Preferably, adjacent anti-shake drivers 4 are equally spaced apart, and each anti-shake driver 4 is equally spaced from the base plate 12. In other embodiments, each anti-shake drive 4 is not equally spaced from the base plate 12.

Referring to fig. 4 and 5, three anti-shake drivers 4 are provided, and are arranged at equal intervals along the circumference of the lens assembly 2, and the distances from the three anti-shake drivers 4 to the bottom plate 12 are equal. It is understood that the number of the anti-shake driving members 4 is not limited to three as shown in fig. 4 and 5, and may be four, five, etc., and the arrangement of the anti-shake driving members 4 is not limited to the arrangement shown in fig. 4 and 5, and the distances from the plurality of anti-shake driving members 4 to the base plate 12 may not be equal.

When being equipped with two at least according to actual demand anti-shake driving piece 4, locate between lens subassembly 2 and curb plate 13 through with two at least anti-shake driving pieces 4, when the coil 41 to anti-shake driving piece 4 circular telegram, can produce the drive power parallel with the optical axis direction between coil 41 and the magnet, lens subassembly 2 receives the effect of the drive power of being on a parallel with the optical axis direction with the position that anti-shake driving piece 4 corresponds, under the effect of the resultant force of the drive power of all anti-shake driving pieces 4, combine the effort of elastic support piece 3 to lens subassembly 2, lens subassembly 2 produces and removes the shake that arouses in order to compensate by external factors, and then realize the anti-shake function to lens subassembly 2, need not to establish the fulcrum structure in addition in lens subassembly. The magnitude of the driving force of each anti-shake driving member 4 can be controlled by controlling the magnitude of the current of each coil 41, so that the corresponding parts of the lens assembly 2 and each anti-shake driving member 4 are acted by different driving forces, but the direction of the driving force of each anti-shake driving member 4 is parallel to the direction of the optical axis. In addition, because each anti-shake driving member 4 has a different position on the lens assembly 2 and a different magnitude of the driving force, the direction of the resultant force of all the anti-shake driving members 4 on the lens assembly 2 can be any direction, and the magnitude of the resultant force can also be set to any magnitude according to the requirement.

Referring to fig. 5 again, the X axis is in a first direction, the Y axis is in a second direction, and the Z axis is in a third direction. The anti-shake driving member 4 arranged along the first direction is a first anti-shake driving member, and the coil 41 and the magnetic steel 42 of the first anti-shake driving member are partially overlapped on the projection part of the side plate 13 along the first direction to form dislocation; the anti-shake driving member 4 arranged along the second direction is a second anti-shake driving member, and the projection parts of the coil 41 and the magnetic steel 42 of the second anti-shake driving member on the side plate 13 along the second direction are overlapped to form dislocation; the anti-shake driving member 4 arranged along the third direction is a third-shake preventing driving member, and the coil 41 and the magnetic steel 42 of the third-shake preventing driving member are overlapped along the projection part of the third direction on the side plate 13 to form dislocation.

Preferably, the housing 1 further comprises a top plate 14 and a through hole 141 corresponding to the lens assembly 2, the through hole 141 being provided in the top plate 14. In the present embodiment, the top plate 14, the side plate 13 and the bottom plate 12 jointly enclose the accommodating cavity 11.

Preferably, the elastic support 3 comprises an elastic connection portion 31, a first annular portion 32 fixed to the lens assembly 2, and a second annular portion 33 fixed to the side plate 13, the elastic connection portion 31 being connected between the first annular portion 32 and the second annular portion 33.

Preferably, the camera module 100 further includes a circuit board 5 for supplying power, and the circuit board 5 is disposed through the side plate 13.

Example two

Referring to fig. 7 and 8, the present embodiment is different from the first embodiment in that the coil 41 is disposed on the lens assembly 2 through a first fixing block 43, and the magnet is disposed on the side plate 13 through a second fixing block 44. Other technical contents are the same, and are not described in detail herein. Fig. 7 is a cross-sectional view of the camera module provided in this embodiment, and the cross-sectional position is the same as that of the camera module provided in the first embodiment.

The above description is only an embodiment of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A camera module is characterized by comprising a shell with an accommodating cavity, a lens assembly arranged in the accommodating cavity, an elastic supporting piece used for connecting the lens assembly and the shell, and an anti-shake driving piece arranged in the accommodating cavity and used for driving the lens assembly to move;

the shell comprises a bottom plate and a side plate which is arranged on the bottom plate and circumferentially surrounds the lens assembly, and the side plate and the bottom plate are enclosed to form the accommodating cavity;

the anti-shake driving piece is arranged between the lens assembly and the side plates and comprises a coil and a magnet, the coil and the magnet are arranged in a staggered mode at opposite intervals, the plane where the coil is located is parallel to the optical axis direction of the camera module, and the magnetic field direction of the magnet is perpendicular to the optical axis direction of the camera module.

2. The camera module of claim 1, wherein the number of coils and magnets is not equal.

3. The camera module of claim 2, wherein the coil is provided with one magnet, the magnet is provided with two spaced magnetic steels, and the magnetic fields of the two magnetic steels are opposite in direction.

4. The camera module according to claim 3, wherein the coil comprises a first main body part and a second main body part which are arranged in parallel and spaced apart, and a first connecting part and a second connecting part which connect the first main body part and the second main body part; the arrangement directions of the two magnetic steels are parallel to the first main body part and the second main body part, and any one of the first main body part and the second main body part is opposite to the two magnetic steels.

5. The camera module of claim 2, wherein there are two coils, the two coils are spaced apart from each other, and the magnetic fields of the two coils are opposite in direction, and the magnet is a magnetic steel.

6. The camera module according to claim 5, wherein the coil comprises a first main body part and a second main body part which are arranged in parallel and spaced apart, and a first connecting part and a second connecting part which connect the first main body part and the second main body part; the two first main body parts form a straight line, the two second main body parts form a straight line, and the magnetic steel is arranged opposite to the two first main body parts or opposite to the two second main body parts.

7. The camera module according to claim 4 or 6, wherein the first main body portion and the second main body portion are disposed in parallel with an optical axis direction of the camera module.

8. The camera module according to any one of claims 1 to 6, wherein the anti-shake driving member further comprises a first fixing block mounted on the lens assembly and a second fixing block mounted on a side of the side plate facing the accommodating cavity, the magnet is fixed to the lens assembly by the first fixing block, and the coil is fixed to the side plate by the second fixing block.

9. The camera module according to any one of claims 1 to 6, wherein the anti-shake driving member further comprises a first fixing block mounted on the lens assembly and a second fixing block mounted on a side of the side plate facing the accommodating cavity, the coil is fixed to the lens assembly by the first fixing block, and the magnet is fixed to the side plate by the second fixing block.

10. The camera module of claim 1, wherein at least two of the anti-shake drive members are provided, and adjacent anti-shake drive members are spaced apart.

11. The camera module of claim 10, wherein the anti-shake actuators are disposed at equal intervals adjacent to each other, and each anti-shake actuator is spaced apart from the base plate at equal intervals.

12. The camera module of claim 1, wherein the housing further comprises a top plate and a through hole corresponding to the lens assembly, the through hole being disposed in the top plate.

13. The camera module of claim 1, wherein the resilient support comprises a resilient connecting portion, a first annular portion secured to the lens assembly, and a second annular portion secured to the side plate, the resilient connecting portion being connected between the first annular portion and the second annular portion.

14. The camera module of claim 13, wherein there are at least two of the resilient connecting portions, each of the resilient connecting portions extending from the first annular portion to the second annular portion along an arcuate path.