CN213457487U

CN213457487U - Camera shooting module

Info

Publication number: CN213457487U
Application number: CN202021249611.7U
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: 2021-06-15
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 component used for connecting the lens component and the shell, and one or at least two anti-shake driving components 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 plate and comprises a coil and a magnet which corresponds to the coil and is arranged at an interval, and the plane where the coil is located is perpendicular to the direction of the optical axis of the camera module. 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

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 one or at least two anti-shake driving pieces 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 plate and comprises a coil and a magnet which corresponds to the coil and is arranged at an interval, and the plane where the coil is located is perpendicular to the direction of the optical axis of the camera module.

Further, the magnet is magnetic steel, and the magnetic field direction of the magnetic steel is parallel to the optical axis direction.

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

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

Furthermore, the first fixed block is arranged on one side, far away from the bottom plate, of the second fixed block.

Further, the coil with the magnet steel is the symmetry setting, just the coil is followed the central line of the optical axis direction of the module of making a video recording with the magnet steel is followed the central line of the optical axis direction of the module of making a video recording coincides mutually.

Further, the coil is in a runway shape, and the magnetic steel is rectangular.

Further, a plurality of the anti-shake driving members are arranged at intervals.

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.

Furthermore, the elastic support comprises an elastic connecting part, a first annular part arranged on the lens assembly and a second annular part arranged on the side plate, and the elastic connecting part is connected between the first annular part and the second annular part.

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 a plurality of anti-shake driving pieces that include coil and magnet, the plane perpendicular to optical axis's that the coil is located direction, the magnetic field direction and the optical axis direction of magnet are parallel, the anti-shake driving piece produces the drive power parallel with the optical axis direction that acts on the lens subassembly, combine elastic support to the effort of lens subassembly, it makes the lens subassembly rotate around this fulcrum structure when the position adjustment not need establish the fulcrum structure in addition in the lens subassembly bottom again to realize the module of making a video recording and have the anti-shake function, the thickness of the module of making a video recording has been reduced. 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 lens assembly and an anti-shake driving member according to an embodiment of the present invention;

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

fig. 5 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. 6 is a matching diagram of the lens assembly and the anti-shake driving 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; 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 6.

Example one

Referring to fig. 1 to 4, 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 one or at least two anti-shake driving members 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 disposed between the lens assembly 2 and the side plate 13, and includes a coil 41 and a magnet corresponding to the coil 41 and disposed at an interval, and a plane of the coil 41 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; the anti-shake driving piece 4 comprising the coil 41 and the magnet is arranged between the lens assembly 2 and the side plate 13, the plane where the coil 41 is located is perpendicular to the optical axis direction of the camera module 100, the anti-shake driving piece 4 generates driving force which acts on the lens assembly 2 and is parallel to the optical axis direction, and the acting force of the elastic supporting piece 3 on the lens assembly 2 is combined, so that the camera module 100 has an anti-shake function and does not need to additionally arrange a fulcrum structure at the bottom of the lens assembly 2 to enable the lens assembly 2 to rotate around the fulcrum structure when the azimuth is adjusted. 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 the coil 41 of the anti-shake driving member 4 is energized, the coil 41 and the magnet generate magnetic force in the direction parallel to the optical axis, which may be attraction force or repulsion force, the magnitude of the current of the coil 41 is controlled, and the magnitude of the magnetic force between the coil 41 and the magnet can be controlled, so that the positions of the lens assembly 2 corresponding to the anti-shake driving member 4 are acted by different driving forces, and under the action of the driving force, the lens assembly 2 moves to compensate shake caused by external factors, thereby realizing the anti-shake function of the lens assembly 2.

When setting up an anti-shake driving piece 4 according to actual demand, to coil 41 circular telegram back, the electric current that changes produces magnetic field, produces the magnetic force that is on a parallel with the optical axis direction between coil 41 and the magnet, lens subassembly 2 receives the effect of the parallel drive power of optical axis direction with the position that anti-shake driving piece 4 corresponds promptly, combines elastic support piece 3 to lens subassembly 2's effort, need not to establish the fulcrum structure in addition in lens subassembly 2 bottom when realizing the anti-shake function.

When setting up a plurality of anti-shake driving piece 4 according to actual demand, a plurality of anti-shake driving piece 4 are located between lens subassembly 2 and curb plate 13, after the coil 41 to each anti-shake driving piece 4 circular telegram, can produce the magnetic force parallel with the optical axis direction between the coil 41 of every anti-shake driving piece 4 and the magnet that corresponds, under the effect of the resultant force of the drive power of all anti-shake driving pieces 4, combine elastic support piece 3 to the effort of lens subassembly 2, lens subassembly 2 produces the shake that removes and arouse 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 2 bottom simultaneously. The magnitude and direction of the driving force of each anti-shake driving member 4 can be controlled by controlling the magnitude and direction 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 optical axis direction. Specifically, there are attraction forces between the coil 41 of the anti-shake driving member 4 and the corresponding magnet, and there are repulsion forces between the coil 41 of the anti-shake driving member 4 and the corresponding magnet, and the directions of the attraction forces and the repulsion forces are parallel to the optical axis direction. 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.

Preferably, the magnet is a magnetic steel 42, and the magnetic field direction of the magnetic steel 42 is parallel to the optical axis direction. With this arrangement, the current of the coil 41 is controlled, and the anti-shake driver 4 can generate a driving force parallel to the optical axis direction.

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 lens assembly 2, the magnetic steel 42 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. The first fixing block 43 is disposed on a side of the second fixing block 44 away from the base plate 12. 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. In other embodiments, the coil 41 may be fixed to the lens assembly 2 by a first fixing block 43, and the magnetic steel 42 may be fixed to the side plate 13 by a second fixing block 44.

In the present embodiment, the coil 41 and the magnetic steel 42 are symmetrically disposed, and a center line of the coil 41 in the optical axis direction of the camera module 100 coincides with a center line of the magnetic steel 42 in the optical axis direction of the camera module 100. The coil 41 is in the shape of a racetrack and the magnet steel 42 is rectangular. It will be appreciated that the coil 41 and the magnet 42 may be of other shapes.

Preferably, a plurality of anti-shake drives 4 are provided at intervals.

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. 3 and 4, 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. 3 and 4, 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. 3 and 4, and the distances from the plurality of anti-shake driving members 4 to the base plate 12 may not be equal.

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. Specifically, the elastic connection portions 31 are provided in at least two, and each elastic connection portion 31 extends from the first annular portion 32 to the second annular portion 33 along an arc-shaped trajectory.

In this embodiment, 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. 5 and fig. 6, the difference between the present embodiment and the first embodiment is that the first fixing block 43 is disposed on the side of the second fixing block 44 close to the bottom plate 12. Other technical contents are the same, and are not described in detail herein. Fig. 5 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 one or at least two anti-shake driving pieces arranged in the accommodating cavity and used for driving the lens assembly to move;

2. The camera module of claim 1, wherein the magnet is a magnetic steel, and a magnetic field direction of the magnetic steel is parallel to an optical axis direction.

3. The camera module according to claim 2, 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 lens assembly, the magnetic steel is fixed to the lens assembly through the first fixing block, and the coil is fixed to the side plate through the second fixing block.

4. The camera module according to claim 2, 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 lens assembly, the coil is fixed to the lens assembly by the first fixing block, and the magnetic steel is fixed to the side plate by the second fixing block.

5. The camera module according to claim 3 or 4, wherein the first fixing block is disposed on a side of the second fixing block away from the base plate.

6. The camera module of claim 2, wherein the coil and the magnetic steel are symmetrically arranged, and a center line of the coil along an optical axis direction of the camera module coincides with a center line of the magnetic steel along the optical axis direction of the camera module.

7. The camera module of claim 6, wherein the coil is racetrack shaped and the magnetic steel is rectangular.

8. The camera module of claim 1, wherein a plurality of the anti-shake actuators are spaced apart.

9. The camera module of claim 8, 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.

10. 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.

11. 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.

12. The camera module of claim 11, 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.