CN213457486U

CN213457486U - Lens module and electronic equipment

Info

Publication number: CN213457486U
Application number: CN202021249569.9U
Authority: CN
Inventors: 王洪兴; 郭顺; 史卫领
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 discloses a lens module and electronic equipment, wherein, this lens module is including being equipped with the shell of accepting the chamber, accept in the lens subassembly of accepting the intracavity and be used for driving the piezoelectric drive device of lens subassembly motion, the top of shell seted up with the lens subassembly just to setting up and with accept the through-hole of chamber intercommunication, piezoelectric drive device's one end and camera lens are kept away from one side of through-hole and are connected, the other end is connected with the bottom of shell. The utility model discloses a lens module, when piezoelectric drive device lets in the electric current, piezoelectric drive device will produce deformation to drive the camera lens motion, consequently can compensate the camera lens because of the displacement that the shake produced, realize the anti-shake function of lens module, in order to guarantee to shoot the quality, piezoelectric drive device responds very rapidly moreover, user's operation experience has been promoted greatly, and piezoelectric drive device can be done very thin moreover, reduces its space that occupies, is favorable to realizing the miniaturization of lens module.

Description

Lens module and electronic equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to a camera lens optical imaging technical field especially relates to a camera lens module and use electronic equipment of this camera lens module.

[ background of the invention ]

In recent years, high performance lens modules are mounted on electronic products such as smart phones, tablet computers, and cameras. When taking a picture, if the lens module shakes to blur the shot picture, the lens module usually has an anti-shake function in order to ensure the quality of the shot image.

The current anti-shake scheme is usually installed drive coil and magnet steel in the side of camera lens, adjusts the position of camera lens through side thrust, and the camera bottom needs a fulcrum structure to the camera rotates around this fulcrum structure and accomplishes the adjustment of camera angle, with the anti-shake function that realizes the lens module. However, the electromagnetic driving mode is relatively slow in response, and the electromagnetic pushing device is installed on the side surface, so that the angle of the camera can be conveniently adjusted by arranging a fulcrum structure; in addition, the size of the whole structure in the width direction can be increased, so that the operation experience of a user and the product performance of the lens module are influenced, and the requirements of miniaturization and quick response of the lens module are not met.

Therefore, there is a need for an improved lens module to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a lens module, it has the response rapidly, and is miniaturized, does not need bottom fulcrum structure, can make things convenient for, the advantage of all-round adjustment camera position.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the utility model provides a lens module, including be equipped with accept the shell in chamber, accept in accept the lens subassembly of intracavity and be used for the drive the piezoelectricity drive arrangement of lens subassembly motion, the top of shell seted up with the lens subassembly just to setting up and with accept the through-hole of chamber intercommunication, piezoelectricity drive arrangement's one end with the camera lens is kept away from one side of through-hole is connected, the other end with the bottom of shell is connected.

As an improvement, the lens module further comprises a first fixed block and a second fixed block, one end of the piezoelectric driving device is connected with the lens assembly through the first fixed block, and the other end of the piezoelectric driving device is connected with the bottom of the shell through the second fixed block.

As an improvement, the first fixing block is vertically connected between the lens assembly and the piezoelectric driving device, and the second fixing block is vertically connected between the housing and the piezoelectric driving device.

As an improvement, the housing includes a housing, and a first cover plate and a second cover plate respectively connected to opposite sides of the housing, the first cover plate, the second cover plate and the housing enclose to form the accommodating cavity, the through hole penetrates through the first cover plate along an optical axis direction of the lens module, and the second fixing block is connected between the second cover plate and the lens assembly.

As an improvement, the first fixed block and the lens assembly are integrally formed or separately assembled and formed; and/or the presence of a gas in the atmosphere,

the second fixed block and the shell are integrally formed or assembled and formed in a split mode.

As an improvement, the piezoelectric driving devices are provided with at least two piezoelectric driving devices, and the at least two piezoelectric driving devices are distributed at intervals along the circumferential direction of the bottom of the lens assembly.

As an improvement, the lens module further includes an elastic supporting member connected between the lens assembly and the inner wall of the housing for supporting the lens assembly.

As an improvement, the elastic supporting member includes an outer frame fixedly connected to the inner wall of the housing, an inner frame disposed at an interval inside the outer frame and fixedly connected to the lens module, and an elastic connection beam connected between the inner frame and the outer frame.

As an improvement, the elastic connecting beam extends from the outer frame to the inner frame along an arc-shaped track.

As an improvement, the lens module further includes a flexible circuit board, and one end of the flexible circuit board penetrates through the housing and is electrically connected to the lens assembly.

The second objective of the present invention is to provide an electronic device, including the lens module.

Compared with the prior art, the embodiment of the utility model has the advantages that the piezoelectric driving device is arranged between the bottom of the shell and the lens component, when the piezoelectric driving device is electrified, the piezoelectric driving device can generate deformation, thereby driving the lens assembly to move, so as to compensate the displacement of the lens assembly caused by shaking, and realize the anti-shaking function of the lens module, so as to ensure the shooting quality, the piezoelectric driving device has very quick response, the operation experience of a user is greatly improved, moreover, because the piezoelectric driving device is arranged between the bottom of the shell and the lens component, the size of the lens module in the width direction can be reduced, and a supporting point structure is not required to be additionally arranged at the bottom of the shell, the position of the lens component can be conveniently and omnidirectionally adjusted, and the piezoelectric driving device can be made to be very thin, so that the occupied space is reduced, and the miniaturization of the lens module is favorably realized.

[ description of the drawings ]

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

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

fig. 3 is an exploded schematic view of a lens module according to an embodiment of the present invention;

fig. 4 is an assembly view of the lens, the first fixing block, the second fixing block, the piezoelectric driving device and the second cover plate shown in fig. 2;

fig. 5 is a schematic structural view of the elastic support member shown in fig. 3.

Reference numerals: 100. a lens module; 11. an accommodating cavity; 10. a housing; 20. a lens assembly; 30. a piezoelectric driving device; 12. a through hole; 13. a housing; 14. a first cover plate; 15. a second cover plate; 40. a flexible circuit board; 50. a first fixed block; 60. a second fixed block; 70. an elastic support member; 71. an outer frame; 72. an inner frame; 73. the elastic connection beam.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1-5, an embodiment of the present invention provides an electronic device, including a lens module 100 with an anti-shake function, the lens module 100 includes a housing 10 having an accommodating cavity 11, a lens assembly 20 accommodated in the accommodating cavity 11, and a piezoelectric driving device 30 for driving the lens assembly 20 to move, a through hole 12 is formed in a top of the housing 10, the through hole 12 is preferably circular, the through hole 12 and the lens assembly 20 are opposite to each other and are communicated with the accommodating cavity 11, one end of the piezoelectric driving device 30 is connected to a side of the lens assembly 20 away from the through hole 12, and the other end is connected to a bottom of the housing 10.

By arranging the piezoelectric driving device 30 between the lens assembly 20 and the bottom of the housing 10, when the piezoelectric driving device 30 is energized, the piezoelectric driving device 30 is deformed to drive the lens assembly 20 to move so as to compensate for the displacement of the lens assembly 20 caused by shaking, thereby realizing the anti-shaking function of the lens module 100, thereby ensuring the shooting quality, and the piezoelectric driving device 30 responds very quickly, thereby greatly improving the operation experience of a user, because the piezoelectric driving device 30 is arranged between the bottom of the housing 10 and the lens assembly 20, the size of the lens module 100 in the width direction can be reduced, and a fulcrum structure is not required to be additionally arranged at the bottom of the housing 10, so that the position of the lens assembly 20 can be conveniently and omnidirectionally adjusted, meanwhile, the piezoelectric driving device 30 can be made very thin, therefore, the occupied space is small, and the volume of the lens module 100 can be reduced, the miniaturization of the lens module 100 is realized. It is understood that the piezoelectric driving device 30 drives the lens assembly 20 to move by deformation, and may drive the lens assembly 20 to move in a direction perpendicular to the optical axis of the lens module 100, or may perform a deflection, as long as the anti-shake function of the lens assembly 20 is achieved.

It will be appreciated that the electronic device may be a smartphone, or a tablet, or a camera.

As an improvement of the present embodiment, the housing 10 includes a housing 13, a first cover plate 14 and a second cover plate 15, the first cover plate 14 and the second cover plate 15 are connected to two opposite sides of the housing 13, the first cover plate 14, the second cover plate 15 and the housing 13 together enclose to form an accommodating cavity 11, and the through hole 12 is opened in the first cover plate 14 and penetrates through the first cover plate 14 along the optical axis direction of the lens module 100.

The shape of the housing 13 is not limited, and in the present embodiment, the housing 13 is a square frame surrounded by four side plates.

In this embodiment, the lens module 100 further includes a flexible circuit board 40, and one end of the flexible circuit board 40 passes through the housing 13 of the casing 10 and is electrically connected to the lens assembly 20.

As a modification of the present embodiment, the lens module 100 further includes a first fixing block 50 and a second fixing block 60, and one end of the piezoelectric driving device 30 is connected to the lens assembly 20 through the first fixing block 50, and the other end is connected to the bottom of the housing 10 (i.e., the second cover plate 15) through the second fixing block 60.

In this embodiment, the first fixing block 50 is vertically connected between the lens assembly 20 and the piezoelectric driving device 30, and the second fixing block 60 is vertically connected between the second cover plate 15 and the piezoelectric driving device 30, so that the piezoelectric driving device 30 is parallel to the lens assembly 20 and the second cover plate 15, and therefore, when the piezoelectric driving device 30 is deformed, the piezoelectric driving device 30 is not obstructed by the lens assembly 20 and the second cover plate 15, so that the piezoelectric driving device 30 is deformed. It is to be understood that the first and

second fixing blocks

50 and 60 are not limited to being perpendicularly connected to the piezoelectric driving device 30, and for example, the first and/or

second fixing blocks

50 and 60 may be connected to the piezoelectric driving device 30 obliquely.

Preferably, the first fixing block 50 is integrally formed with the lens assembly 20, and the second fixing block 60 is integrally formed with the second cover plate 15. The overall strength of the first fixing block 50 and the lens assembly 20 and the second fixing block 60 and the second cover plate 15 are ensured. It is understood that the first fixing block 50 and the lens assembly 20 may be assembled separately, and the second fixing block 60 and the second cover plate 15 may be assembled separately.

Preferably, at least two piezoelectric driving devices 30 are provided, each piezoelectric driving device 30 is connected between the lens assembly 20 and the second cover plate 15 through a first fixing block 50 and a second fixing block 60, and the at least two piezoelectric driving devices 30 are spaced along the circumference of the bottom of the lens assembly 20.

Specifically, in the present embodiment, three piezoelectric driving devices 30 are provided, and the three piezoelectric driving devices 30 are uniformly distributed along the circumferential direction of the bottom of the lens assembly 20, that is, the distance between the centers of any two piezoelectric driving devices 30 is the same. It is understood that the number of the piezoelectric drivers 30 may also be two or another number, and when the number of the piezoelectric drivers 30 is plural, the distance between two adjacent piezoelectric drivers 30 may also be different.

As a modification of the present embodiment, the lens module 100 further includes an elastic support 70 disposed in the accommodating cavity 11 for supporting the lens assembly 20, the elastic support 70 includes an outer frame 71, an inner frame 72 and elastic connection beams 73, the outer frame 71 is fixed on an inner wall of the housing 13, the inner frame 72 is disposed at intervals inside the inner frame 72 and is fixedly connected to the lens assembly 20, and the elastic connection beams 73 are connected between the outer frame 71 and the inner frame 72.

By providing the elastic connection beams 73 between the inner frame 72 and the outer frame 71, the elastic connection beams 73 are made of flexible material, so that the rigidity of the elastic connection beams 73 is reduced, the elastic connection beams 73 are easily deformed, and the influence of the elastic support 70 on the movement of the lens assembly 20 is reduced.

The shapes of the inner frame 71 and the outer frame 72 are not limited, and in the present embodiment, the outer frame 71 is preferably a square ring, and the inner frame 72 is preferably a circular ring.

As a modification of the present embodiment, the elastic connection beams 73 extend from the outer frame 71 to the inner frame 72 along an arc-shaped trajectory.

In this embodiment, the outer frame 71 is a square ring formed by enclosing four side beams, the number of the elastic connection beams 73 is preferably four, each side beam is connected with the inner frame 72 through one elastic connection beam 73, one end of each elastic connection beam 73 is connected with a midpoint of the side beam, and the other end of each elastic connection beam 73 extends to a position on the inner frame 72 opposite to a midpoint of another adjacent side beam along an arc-shaped track, so that the elastic connection beams 73 are not affected with each other, the length of each elastic connection beam 73 is extended as much as possible, the rigidity of each elastic connection beam 73 is further reduced, and the lens assembly 20 can move conveniently. It is understood that the arrangement of the elastic connection beams 73 is not limited to the above, for example, it is possible to make the elastic connection beams 73 vertically extend from the outer frame 71 to the inner frame 72, and the number of the elastic connection beams 73 is not limited to four, for example, one, two or other numbers of plural are possible.

The above embodiments of the present invention are only described, 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. The utility model provides a lens module, its characterized in that, including be equipped with accept the shell in chamber, accept in accept the lens subassembly of intracavity and be used for the drive the piezoelectricity drive arrangement of lens subassembly motion, the top of shell seted up with the lens subassembly just to setting up and with accept the through-hole of chamber intercommunication, piezoelectricity drive arrangement's one end with the camera lens is kept away from one side of through-hole is connected, the other end with the bottom of shell is connected.

2. The lens module as claimed in claim 1, further comprising a first fixing block and a second fixing block, wherein one end of the piezoelectric driving device is connected to the lens assembly through the first fixing block, and the other end of the piezoelectric driving device is connected to the bottom of the housing through the second fixing block.

3. The lens module as recited in claim 2, wherein the first fixing block is vertically connected between the lens assembly and the piezoelectric driving device, and the second fixing block is vertically connected between the housing and the piezoelectric driving device.

4. The lens module as claimed in claim 2, wherein the housing includes a housing and a first cover plate and a second cover plate respectively connected to two opposite sides of the housing, the first cover plate, the second cover plate and the housing enclose the receiving cavity, the through hole penetrates the first cover plate along an optical axis of the lens module, and the second fixing block is connected between the second cover plate and the lens assembly.

5. The lens module as claimed in claim 2, wherein the first fixing block is integrally formed with the lens assembly or separately assembled; and/or the presence of a gas in the atmosphere,

6. The lens module as claimed in claim 1, wherein the piezoelectric actuators are at least two, and at least two piezoelectric actuators are spaced along the circumference of the bottom of the lens assembly.

7. The lens module as recited in claim 1, further comprising a resilient support connected between the lens assembly and the housing inner wall for supporting the lens assembly.

8. The lens module as claimed in claim 7, wherein the elastic supporting member comprises an outer frame fixedly connected to the inner wall of the housing, an inner frame spaced inside the outer frame and fixedly connected to the lens module, and an elastic connecting beam connected between the inner frame and the outer frame.

9. The lens module as claimed in claim 8, wherein the elastic connection beams extend from the outer frame to the inner frame along an arc-shaped path.

10. The lens module as claimed in claim 1, further comprising a flexible circuit board, wherein one end of the flexible circuit board is electrically connected to the lens assembly after passing through the housing.

11. An electronic device comprising the lens module according to any one of claims 1 to 10.