CN216162763U

CN216162763U - Lens module and electronic device

Info

Publication number: CN216162763U
Application number: CN202121857946.1U
Authority: CN
Inventors: 宋建超; 李静伟; 丁盛杰; 陈信文
Original assignee: Jincheng Sanying Precision Electronics Co ltd
Current assignee: Jincheng Sanying Precision Electronics Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-04-01
Anticipated expiration: 2031-08-10

Abstract

The application provides a lens module, which comprises an optical filter, a bearing seat, a metal sheet and a fixing piece; the bearing seat is provided with a first through hole, the bearing seat is provided with a first surface and a second surface opposite to the first surface, the second surface is inwards concave towards the first surface to form an accommodating groove, and the first through hole is communicated with the accommodating groove; the metal sheet is accommodated in the accommodating groove and provided with a second through hole, the central axis of the second through hole is collinear with the central axis of the first through hole, the metal sheet extends inwards at the inner side wall of the second through hole to form a bearing table, and the optical filter is arranged on the bearing table and accommodated in the first through hole; the fixing piece is arranged on the bearing seat, and the metal sheet is arranged on the bearing seat. This application reduces the thickness of lens module through the flaked design of sheetmetal to it is fixed with the sheetmetal to bear the weight of the seat through the mounting, does benefit to the miniaturized design that realizes the lens module. The application also provides an electronic device.

Description

Lens module and electronic device

Technical Field

The present disclosure relates to electronic and optical devices, and particularly to a lens module and an electronic device.

Background

The camera module in the electronic device (mobile phone or computer) in the market at present comprises a bearing seat arranged between a lens and a circuit board, the bearing seat which is integrally formed by injection molding is provided with a through hole, the bearing seat extends on the inner wall of the through hole to form a flange, and the optical filter is arranged on the flange. In order to ensure the strength of the flange supporting the optical filter, the thickness of the flange is generally greater than 0.2mm, but the thickness of the bearing seat in the camera module is larger due to the arrangement, which is not beneficial to the miniaturization development of the camera module.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a lens module to solve the above problems.

In addition, an electronic device including the lens module is also provided.

The application provides a lens module, which comprises an optical filter, a bearing seat, a metal sheet and a fixing piece; the bearing seat is provided with a first through hole, the bearing seat is provided with a first surface and a second surface opposite to the first surface, the second surface is inwards concave towards the first surface to form a containing groove, and the first through hole is communicated with the containing groove;

the metal sheet is accommodated in the accommodating groove and provided with a second through hole, a central axis of the second through hole is collinear with a central axis of the first through hole, the metal sheet extends inwards at the inner side wall of the second through hole to form a bearing table, and the optical filter is arranged on the bearing table and accommodated in the first through hole;

the fixing piece is arranged on the bearing seat, and the metal sheet is arranged on the bearing seat.

In some embodiments, the metal sheet has a thickness of 0.08 to 0.1 mm.

In some embodiments, the accommodating groove has a bottom surface connected to the metal sheet, and the fixing member is disposed on the bottom surface;

the fixing piece comprises a plurality of riveting columns which are arranged on the bottom surface at intervals;

the metal sheet is provided with a mounting hole at a position corresponding to the riveting column, and the riveting column is matched with the mounting hole to fix the metal sheet on the bearing seat.

In some embodiments, adjacent studs are equally spaced.

In some embodiments, the stud has a projection extending from the sheet metal, the projection facing away from the bottom surface, the projection having a length of less than 0.05 mm.

In some embodiments, the metal sheets are each provided with a barrier layer on a surface thereof.

In some embodiments, the receiving platform includes a fourth surface and a fifth surface opposite to the fourth surface, the optical filter is disposed on the fourth surface, an inclined plane is further connected between the fourth surface and the fifth surface, the inclined plane is close to the second through hole, and an included angle between the inclined plane and the fourth surface is an acute angle.

In some embodiments, the bearing seat is further provided with a first air escaping hole penetrating through the bearing seat, and the metal sheet is provided with a second air escaping hole at a position corresponding to the first air escaping hole.

In some embodiments, the fixing member is integrally formed with the carrier.

The application also provides an electronic device, which comprises the lens module.

In this application, bear the seat and form a bearing platform with the combination of sheetmetal, utilize the structural strength realization of sheetmetal thin slice self to the support of light filter to realize bearing the seat through the mounting and the fixing of sheetmetal, so combine to reduce the thickness of bearing the platform among the prior art, further reduce the thickness that bears the seat, realize the miniaturized design of camera lens module.

Drawings

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

Fig. 2 is an exploded view of the lens module in the embodiment shown in fig. 1.

Fig. 3 is an exploded view of the carrier and the metal sheet from another perspective in the embodiment shown in fig. 1.

Fig. 4 is a schematic structural view illustrating the connection between the carrier and the metal plate in the embodiment shown in fig. 1.

FIG. 5 is a schematic cross-sectional view taken along V-V of the lens module shown in FIG. 1.

FIG. 6 is a schematic cross-sectional view of the lens module along VI-VI in the embodiment shown in FIG. 1.

Fig. 7 is a schematic perspective view of an electronic device of a lens module according to an embodiment of the present application.

Description of the main elements

Lens module 100

Circuit board 10

First plate part 11

Second plate portion 12

Third plate part 13

Base surface 14

Electrical connection part 21

Photosensitive chip 22

Electronic component 23

Bearing seat 30

First through hole 31

First surface 32

Second surface 33

Accommodation groove 34

Bottom surface 35

The first air escape hole 36

Metal sheet 40

Second through hole 41

Second escape hole 42

Receiving table 43

Fourth surface 432

Fifth surface 433

Ramp 434

Sharp corner 435

Barrier layer 436

Mounting hole 44

Fixing member 50

Rivet 51

Projecting part 511

Optical filter 60

Lens assembly 70

Lens 71

Microscope base 72

First adhesive layer 81

Second adhesive layer 82

Third adhesive layer 83

Electronic device 200

The following detailed description will further describe the present application in conjunction with the above-described figures 1-7.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

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

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

To further explain the technical means and effects of the present application for achieving the intended purpose, the present application will be described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and fig. 2, an embodiment of the present disclosure provides a lens module 100, which includes a circuit board 10, an electrical connection portion 21, a photosensitive chip 22, an electronic component 23, a carrier 30, a metal sheet 40, a filter 60, and a lens assembly 70. The electrical connection portion 21 and the photosensitive chip 22 are disposed on the circuit board 10, the electronic component 23 is disposed at the peripheral edge of the photosensitive chip 22, the carrying seat 30 is disposed on the circuit board 10, the optical filter 60 and the metal plate 40 are disposed in the carrying seat 30, and the lens assembly 70 is disposed on the carrying seat 30.

Referring to fig. 2, the circuit board 10 includes a first board portion 11, a second board portion 12, and a third board portion 13, the lens assembly 70 is mounted to the first board portion 11, and the second board portion 12 is connected between the first board portion 11 and the third board portion 13. The circuit board 10 has a base surface 14, and the photosensitive chip 22 is disposed on the base surface 14 and located on the first board 11. The circuit board 10 may be a flexible board, a rigid board, or a rigid-flex board. In the present embodiment, the circuit board 10 is a rigid-flex board, the first board portion 11 and the third board portion 13 are rigid boards, and the second board portion 12 is a flexible board. The third plate part 13 is provided with electrical connection parts 21, which electrical connection parts 21 are located on the base surface 14. The electrical connection portion 21 may be a connector or a gold finger for signal transmission between the lens module 100 and other electronic components 23 in the electronic device 200.

Referring to fig. 2, the first board portion 11 is provided with a plurality of electronic components 23 at the edge of the photosensitive chip 22. The electronic component 23 may be a resistor, a capacitor, a diode, a triode, a relay, a charged erasable programmable read-only memory (EEPROM), or other passive components.

Referring to fig. 2, a first adhesive layer 81 is further disposed between the circuit board 10 and the carrier 30, and the carrier 30 is fixed on the circuit board 10 by the first adhesive layer 81.

Referring to fig. 2, 3 and 4, the carrier 30 is substantially square, and the carrier 30 has a first through hole 31. The carrier 30 includes a first surface 32 and a second surface 33, the first surface 32 and the second surface 33 are respectively located on two opposite surfaces of the carrier 30, the second surface 33 is close to the first plate portion 11, the second surface 33 is recessed towards the first surface 32 to form a receiving groove 34, and the first through hole 31 is communicated with the receiving groove 34. The receiving groove 34 has a bottom surface 35, and the bottom surface 35 is a groove bottom of the receiving groove 34. The metal sheet 40 is disposed in the receiving groove 34 and attached to the bottom surface 35. The metal sheet 40 has a second through hole 41, and the center axis of the second through hole 41 is collinear with the center axis of the first through hole 31. The metal sheet 40 extends inward at the inner sidewall of the second through hole 41 to form a receiving platform 43, and the optical filter 60 is disposed on the receiving platform 43 and received in the first through hole 31.

Referring to fig. 2, 3 and 5, the fixing member 50 is disposed on the bottom surface 35 of the carrier 30 for mounting the metal sheet 40 on the carrier 30. In some embodiments, the carrier 30 and the fixing member 50 are both made of thermoplastic material, and are integrally formed by thermoplastic molding. The fixing member 50 includes a plurality of rivet columns 51, and the rivet columns 51 are spaced apart from each other on the bottom surface 35. In the present embodiment, four riveting columns 51 are exemplified, and the four riveting columns 51 are uniformly spaced on the bottom surface 35. The metal sheet 40 is substantially square, and the metal sheet 40 has mounting holes 44 at positions corresponding to the four rivet posts 51. One end of the rivet post 51 passes through the mounting hole 44, and the metal sheet 40 is fixed on the carrier 30 by a hot riveting process. The hot riveting process can enhance the bonding strength of the carrier 30 and the metal sheet 40.

Referring to fig. 3 and 5, in some embodiments, stud 51 has a protrusion 511 protruding from metal sheet 40, and protrusion 511 is away from bottom surface 35. The hot riveting process specifically includes heating the end of the rivet column 51 by ultrasonic wave, hot air, hot die or infrared to melt the rivet column 51 extending out of the mounting hole 44 of the metal sheet 40, applying pressure to the end of the rivet column 51 by a jig, and then curing and molding to form a protrusion 511 with a cross-sectional area larger than that of the mounting hole 44, so that the metal sheet 40 can be firmly fixed on the bearing seat 30.

Referring to fig. 3 and 5, in some embodiments, the length W1 of the protrusion 511 is less than 0.05mm, and if the length of the protrusion 511 is greater than 0.05mm, the mounting of the electronic element 23 near the protrusion 511 is affected, and the miniaturization of the lens module 100 is not facilitated.

Referring to fig. 3 and 5, in some embodiments, metal sheet 40 is formed by stamping. The thickness W2 of the metal sheet 40 is 0.08-0.1 mm. The metal sheet 40 within this thickness range not only can effectively support the filter 60, but also can reduce the thickness of the lens module 100, thereby facilitating the miniaturization design of the lens module 100.

Referring to fig. 2 and 3, in some embodiments, four adjacent studs 51 are disposed at equal intervals. The arrangement can improve the strength of the combination of the metal sheet 40 and the bearing seat 30.

Referring to fig. 2 and 3, in some embodiments, a barrier layer 436 is disposed on a surface of the metal sheet 40. The blocking layer 436 is formed by blacking the surface of the metal sheet 40 by spraying and baking paint, wherein the thickness of the spraying is 0.01-0.015mm, so that the reflectivity of the surface of the metal sheet 40 can be reduced, the imaging quality of the lens module 100 is improved, and the exposure risk is reduced.

Referring to fig. 4, 5, and 6, the receiving table 43 includes a fourth surface 432 and a fifth surface 433 disposed opposite to the fourth surface 432. The optical filter 60 is disposed on the fourth surface 432, an inclined surface 434 is further connected between the fourth surface 432 and the fifth surface 433, the inclined surface 434 is close to the second through hole 41, and an included angle between the inclined surface 434 and the fourth surface 432 is an acute angle. Compared with the round corner in the prior art, the junction between the inclined surface 434 and the fourth surface 432 of the present application forms the sharp corner 435, so that the incident light from the lens assembly 70 can be prevented from being reflected at the sharp corner 435, and further, the lens module 100 can be prevented from generating stray light, thereby improving the imaging quality.

Referring to fig. 2, in some embodiments, a second adhesive layer 82 is further disposed between the optical filter 60 and the receiving stage 43, and the optical filter 60 is fixed on the receiving stage 43 by the second adhesive layer 82.

Referring to fig. 2, fig. 3 and fig. 4, in some embodiments, the supporting base 30 further has a first air escape hole 36 penetrating through the first surface 32 and the bottom surface 35, the metal sheet 40 has a second air escape hole 42 at a position corresponding to the first air escape hole 36, and the size of the first air escape hole 36 corresponds to the size of the second air escape hole 42.

Referring to fig. 2, the lens assembly 70 is disposed on the carrying base 30, the lens assembly 70 includes a lens 71 and a lens base 72, and the lens 71 is disposed on the lens base 72. The mirror base 72 is mounted on the carrier base 30, the mirror base 72 is substantially square, and the mirror base 72 is matched with the carrier base 30. A third adhesive layer 83 is further disposed between the lens base 72 and the bearing base 30, and the lens base 72 assembly is fixed on the bearing base 30 through the third adhesive layer 83.

Referring to fig. 7, the lens module 100 can be applied to various electronic devices 200 having a camera module, such as mobile phones, wearable devices, vehicles, cameras or monitoring devices. In the present embodiment, the lens module 100 is applied to a mobile phone.

In this application, the combination of the carrier 30 and the metal sheet 40 forms a receiving platform 43, the filter 60 is supported by the structural strength of the metal sheet 40 itself, and the carrier 30 and the metal sheet 40 are fixed by the fixing member 50. The combination can reduce the thickness of the receiving platform 43 in the prior art, further reduce the thickness of the bearing seat 30, and realize the miniaturization design of the lens module 100.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A lens module, comprising:

an optical filter;

the bearing seat is provided with a first through hole, the bearing seat is provided with a first surface and a second surface opposite to the first surface, the second surface is inwards concave towards the first surface to form a containing groove, and the first through hole is communicated with the containing groove;

and the fixing piece is arranged on the bearing seat and is used for installing the metal sheet on the bearing seat.

2. The lens module as claimed in claim 1, wherein the thickness of the metal sheet is 0.08-0.1 mm.

3. The lens module as claimed in claim 1, wherein the receiving groove has a bottom surface connected to the metal plate, and the fixing member is disposed on the bottom surface;

4. The lens module as claimed in claim 3, wherein the adjacent studs are equally spaced.

5. The lens module as recited in claim 3, wherein the stud has a protrusion extending from the metal plate, the protrusion facing away from the bottom surface, the protrusion having a length less than 0.05 mm.

6. The lens module as recited in claim 1, wherein the metal sheet has a barrier layer on each surface.

7. The lens module as claimed in claim 1, wherein the receiving stage includes a fourth surface and a fifth surface opposite to the fourth surface, the optical filter is disposed on the fourth surface, an inclined plane is further connected between the fourth surface and the fifth surface, the inclined plane is close to the second through hole, and an included angle between the inclined plane and the fourth surface is an acute angle.

8. The lens module as claimed in claim 1, wherein the carrier has a first air-escaping hole penetrating through the carrier, and the metal plate has a second air-escaping hole at a position corresponding to the first air-escaping hole.

9. The lens module as claimed in claim 1, wherein the fixing member is integrally formed with the carrier.

10. An electronic device, comprising the lens module according to any one of claims 1 to 9.