CN213581543U

CN213581543U - Camera shooting module

Info

Publication number: CN213581543U
Application number: CN202021249568.4U
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, a side plate and a top plate, wherein the side plate is arranged on the bottom plate and circumferentially arranged around the lens assembly, the top plate is covered on the side plate and is arranged opposite to the bottom plate, a through hole for light to pass through is formed in the top plate, 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 soft magnetic sheets opposite to the coil and arranged at intervals, and the plane where the coil is located is perpendicular to the direction of an optical axis. 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. Generally, light rays are directly taken from the object side, pass through the lens assembly along the optical axis to the image side, and image the object through 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 has a fulcrum structure about which the lens assembly rotates during orientation adjustment. The scheme can conveniently realize the angle adjustment of the lens assembly by a bottom fulcrum structure.

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, a side plate and a top plate, wherein the side plate is arranged on the bottom plate and circumferentially arranged around the lens assembly, the top plate is covered on the side plate and is arranged opposite to the bottom plate, a through hole for light to pass through is formed in the top plate, 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 soft magnetic sheets opposite to the coil and arranged at intervals, and the plane where the coil is located is perpendicular to the direction of an optical axis.

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 accommodating cavity, the soft magnetic sheet and the coil are arranged between the first fixed block and the second fixed block, the soft magnetic sheet is arranged on the lens assembly through the first fixed block, and the coil is arranged on the side plate through the second fixed block; or the coil is arranged on the lens assembly through the first fixed block, and the soft magnetic sheet is arranged on the side plate through the second fixed block.

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

Further, the anti-shake driving piece further comprises an iron core, and the iron core is embedded in the coil.

Further, the central points of the projections of the coil and the soft magnetic sheet which are opposite to each other on the bottom plate along the optical axis direction are coincided.

Further, the coil is in a track shape, and the soft magnetic sheet is rectangular.

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

Furthermore, a plurality of the anti-shake driving pieces are arranged on the periphery of the lens assembly at equal intervals, and the intervals between each anti-shake driving piece and the bottom plate are equal.

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

The beneficial effects of the utility model reside in that: the lens component is supported in the shell by arranging an elastic supporting component; locate between lens subassembly and the curb plate through the anti-shake driving piece that will include coil and soft magnetic sheet, the direction of the plane perpendicular to optical axis at coil place, soft magnetic sheet sets up with the coil is relative, the coil circular telegram back, soft magnetic sheet produces with coil polarity opposite direction's polarity, produce the appeal between coil and the soft magnetic sheet, combine elastic support 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 camera module has the anti-shake function, camera module's thickness has been reduced. Therefore, the utility model provides a module of making a video recording has reduced thickness when realizing the anti-shake.

[ 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 cross-sectional view of the camera module provided in the third embodiment of the present invention at the same position as the camera module provided in the first embodiment;

fig. 7 is a cross-sectional view of the camera module provided in the fourth embodiment of the present invention, the camera module provided in the first embodiment of the present invention being in the same position as the camera module provided in the first 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. a spring; 32. a first connection portion; 33. a second connecting portion; 4. an anti-shake drive member; 41. a coil; 42. a soft magnetic sheet; 43/43', a first fixed block; 44/44', a second fixed block; 45. an iron core; 5. a circuit board.

[ detailed description ] embodiments

The present invention will be described in detail with reference to fig. 1 to 7.

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 a receiving cavity 11, a lens assembly 2 disposed in the receiving 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 receiving cavity 11 for driving the lens assembly 2 to move; the shell 1 comprises a bottom plate 12, a side plate 13 arranged on the bottom plate 12 and arranged around the circumference of the lens component 2, and a top plate 14 covered on the side plate 13 and arranged opposite to the bottom plate 12, wherein a through hole 141 for light to pass through is arranged on the top plate 14, 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 soft magnetic sheet 42 opposite to the coil 41 and disposed at an interval, wherein a plane of the coil 41 is perpendicular to the direction of the optical axis. The lens component 2 is supported in the shell 1 by arranging the elastic supporting component 3, so that the lens component can be prevented from colliding with the shell 1 while the supporting function is realized; the anti-shake driving piece 4 comprising the coil 41 and the soft magnetic sheet 42 is arranged between the lens component 2 and the side plate 13, the plane where the coil 41 is located is perpendicular to the direction of the optical axis, the soft magnetic sheet 42 is arranged opposite to the coil 41, after the coil 41 is electrified, the soft magnetic sheet 42 generates a polarity opposite to the polarity direction of the coil 41, attraction force is generated between the coil 41 and the soft magnetic sheet 42, and the acting force of the elastic supporting piece 3 on the lens component 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 component 2 to enable the lens component 2 to rotate around the fulcrum structure during azimuth 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 the thickness of module of making a video recording 100.

When the coil 41 of the anti-shake driving member 4 is energized, attractive force is generated between the coil 41 and the soft magnetic sheet 42, the magnitude of the current of the coil 41 is controlled, and the magnitude of the attractive force can be controlled, so that the positions corresponding to the lens assembly 2 and the anti-shake driving member 4 are subjected to different magnitudes of acting forces when the magnitudes of the currents are different, and under the action of the acting forces, the lens assembly 2 returns to a normal optical axis path (the direction indicated by the Z axis in fig. 1 is the normal optical axis path direction), and the anti-shake function of the lens assembly 2 is further realized.

The anti-shake driving member 4 further comprises 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 soft magnetic sheet 42 and the coil 41 are arranged between the first fixing block 43 and the second fixing block 44, the soft magnetic sheet 42 is arranged on the lens assembly 2 through the first fixing block 43, and the coil 41 is arranged on 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 is understood that the first fixing block 43 may be a part of the lens assembly 2 and the second fixing block 44 may be a part of the housing 1. In other embodiments, the coil 41 may be mounted on the lens assembly 2 through the first fixing block 43, and the soft magnetic sheet 42 may be mounted on the side plate 13 through the second fixing block 44.

Preferably, the anti-shake driving member 4 further includes a core 45, and the core 45 is embedded in the coil 41. The iron core 45 is embedded in the coil 41, so that magnetic lines of force of the coil 41 are gathered, and the magnetism is increased.

In the present embodiment, the anti-shake driving member 4 comprises a coil 41 and a soft magnetic sheet 42, the opposite coil 41 and soft magnetic sheet 42 coincide with each other along the center point of the projection of the optical axis direction on the base plate 12, and the attraction force generated by the coil when the coil is energized can be most effectively applied to the anti-shake. The coil 41 is racetrack shaped and the soft magnetic sheet 42 is rectangular. It will be appreciated that the coil 41 and the soft-magnetic sheet 42 may also have other shapes.

Preferably, at least two anti-shake driving members 4 are provided, and adjacent anti-shake driving members 4 are spaced apart. Preferably, a plurality of anti-shake driving members 4 are arranged at equal intervals on the periphery of the lens assembly 2, and the interval between each anti-shake driving member 4 and the bottom plate 12 is equal, so that the anti-shake action is easier to control.

Referring to fig. 3 and 4, three anti-shake drivers 4 are provided, and are disposed at equal intervals along the circumference of the lens assembly 2, and the interval between each anti-shake driver 4 and the bottom plate 12 is equal. In other embodiments, the number of anti-shake drives 4 is not limited to three as shown in fig. 3 and 4, but may also be four, five, etc.; 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 anti-shake driving members 4 to the base plate 12 may be unequal. In addition, the anti-shake driving part 4 can be matched with the coil magnetic steel structure for use, and anti-shake is achieved jointly.

When the anti-shake driving element 4 is arranged according to actual requirements, the current of the coil 41 is controlled, so that attractive force is generated between the coil 41 and the soft magnetic sheet 42, namely, the parts of the lens assembly 2 corresponding to the anti-shake driving element 4 are subjected to acting force in the same direction as the optical axis, and the acting force of the elastic supporting element 3 on the lens assembly 2 is combined, so that the anti-shake function is realized without additionally arranging a fulcrum structure at the bottom of the lens assembly 2.

When being equipped with at least two according to actual demand anti-shake driving piece 4, through locating between lens subassembly 2 and curb plate 13 with at least two anti-shake driving piece 4, when the coil 41 to anti-shake driving piece 4 circular telegram, can produce the appeal between coil 41 and the soft magnetic sheet 42, the size of each coil 41 electric current of control, can control the size of each anti-shake driving piece 4's effort, thereby make lens subassembly 2 and the position that each anti-shake driving piece 4 corresponds receive the effort of equidimension not, under the effect of all efforts, lens subassembly 2 returns normal optical axis route, and then realize lens subassembly 2's anti-shake function. Therefore, when at least two anti-shake driving members 4 are arranged, the acting forces acting on the positions of the lens assembly 2 corresponding to the anti-shake driving members 4 are different in size, the resultant force acting on the lens assembly 2 through all the anti-shake driving members 4 is combined with the acting force of the elastic supporting member 3, and the bottom of the lens assembly 2 is not required to be additionally provided with a fulcrum structure while the anti-shake function is realized.

Preferably, the elastic support 3 comprises a spring 31, a first connection portion 32 provided at the lens assembly 2, and a second connection portion 33 provided at the side plate 13, the spring 31 being connected between the first connection portion 32 and the second connection portion 33.

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

Fig. 5 is a sectional view of the camera module provided in this embodiment, and the sectional position is the same as that of the camera module provided in the first embodiment. Referring to fig. 5, the difference between the present embodiment and the first embodiment is that the first fixing block 43 'is disposed on a 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.

EXAMPLE III

Fig. 6 is a sectional view of the camera module according to the present embodiment, where the sectional position is the same as that of the camera module according to the first embodiment. Referring to fig. 6, a difference between the present embodiment and the first embodiment is that an iron core 45 is not embedded in a coil 41, and other technical contents are the same, which are not described herein again.

Example four

Fig. 7 is a sectional view of the camera module according to the present embodiment, where the sectional position is the same as that of the camera module according to the first embodiment. Referring to fig. 7, the difference between the present embodiment and the second embodiment is that the iron core 45 is not embedded in the coil 41, and other technical contents are the same, which are not described herein again.

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;

2. The camera module according to claim 1, 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 soft magnetic sheet and the coil are disposed between the first fixing block and the second fixing block, the soft magnetic sheet is disposed on the lens assembly through the first fixing block, and the coil is disposed on the side plate through the second fixing block; or the coil is arranged on the lens assembly through the first fixed block, and the soft magnetic sheet is arranged on the side plate through the second fixed block.

3. The camera module of claim 2, wherein the first fixing block is disposed on a side of the second fixing block away from the base plate.

4. The camera module of claim 1, wherein the anti-shake drive member further comprises an iron core embedded in the coil.

5. A camera module according to any one of claims 1 to 4, characterized in that the center points of the projections of the opposing coils and the soft magnetic sheet on the base plate in the direction of the optical axis coincide.

6. The camera module of claim 5, wherein the coil is racetrack shaped and the soft magnetic sheet is rectangular.

7. 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.

8. The camera module of claim 7, wherein the anti-shake actuators are disposed at equal intervals around the periphery of the lens assembly, and each anti-shake actuator is spaced apart from the base plate by the same distance.

9. The camera module of claim 1, wherein the resilient support comprises a spring, a first connecting portion disposed on the lens assembly, and a second connecting portion disposed on the side plate, the spring being connected between the first connecting portion and the second connecting portion.