CN215599480U

CN215599480U - Dustproof mechanism of camera module

Info

Publication number: CN215599480U
Application number: CN202122139815.6U
Authority: CN
Inventors: 张建民; 王永涛; 孟宁宁; 黄伟; 孙怀波; 姜鲁宁; 葛超; 张子强; 李军强; 刘通
Original assignee: Shandong Luqiao Group Co Ltd
Current assignee: Shandong Luqiao Group Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-21
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a dustproof mechanism of camera module, fan work, it produces the negative pressure in making I inner chamber, outside air filters through air filter element through the air inlet entering box interior line, the air after the filtration carries out cooling to the camera in the inner chamber II that gets into the casing through the air outlet, the air current passes through the venthole, gas channel and exhaust hole are discharged in the atmosphere, because the air has filtered, the dust granule that it contains is clear away, casing tail end and box seal weld, the ring flange is installed to its front end, install the glass piece in the ring flange, thereby make the clearance between the air admission camera each part can not pollute the image sensor chip of the inside of camera module when advancing, the life of camera has been improved.

Description

Dustproof mechanism of camera module

Technical Field

The utility model relates to the technical field of monitoring equipment, in particular to a dustproof mechanism of a camera module.

Background

Traditional camera module includes braced frame and camera lens module usually, when the camera lens module is flexible, because the external atmospheric pressure of camera module and the unbalance of inside atmospheric pressure, the outside air can pass through the clearance business turn over between each part of camera module by the lens cone, the cavity that braced frame and image sensor chip constitute, the inside cavity pollution image sensor chip that makes dust particle get into the camera module in the outside air from this, and then influence imaging quality and camera module performance.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the dustproof mechanism which can prevent dust from entering the camera module and improve the performance of the camera module.

The technical scheme adopted by the utility model for overcoming the technical problems is as follows:

the utility model provides a dustproof mechanism of camera module, includes:

the air filter is hermetically arranged at the air inlet at the rear end of the inner cavity I of the box body, and a fan is arranged at the air outlet at the front end of the inner cavity I of the box body;

the shell is horizontally arranged, a closed inner cavity II is formed in the openings at the front end and the rear end of the shell, the tail end of the shell is welded and fixed at the front end of the box body, the opening position at the tail end of the shell is communicated with the air outlet, and the camera is horizontally arranged in the inner cavity II through a support;

the glass sheet is embedded and installed in the mounting hole, the front end of the mounting hole is provided with a screw hole II, an annular nut is screwed in the screw hole II to press and fix the glass sheet in the mounting hole, and a lens group of the camera is positioned right behind the through hole; and

the air outlet hole is of a blind hole structure and is vertically arranged at the front end of the shell, and the lower end of the air outlet hole is communicated with the inner cavity II; the exhaust hole is of a blind hole structure and is vertically arranged at the rear end of the shell, the upper end of the exhaust hole is communicated with the atmosphere, and the upper end of the exhaust hole is communicated with the lower end of the exhaust hole through a gas channel horizontally arranged in the shell.

Furthermore, the support comprises a semicircular mounting seat and a horizontally arranged supporting rod, the mounting seat is fixed on the side wall of the rear end of the shell through a screw, the tail end of the supporting rod is fixed on the mounting seat, and the camera is fixed below the front end of the supporting rod.

In order to prevent the gas from flowing back, a check valve is installed at the exhaust hole, and the check valve enables the gas flow to flow into the atmosphere from the exhaust hole in a single direction.

In order to improve the sealing performance, a sealing ring I is arranged between the flange cover and the shell.

And a sealing ring II is arranged between the glass sheet and the flange cover for improving the sealing property.

The utility model has the beneficial effects that: fan work, it produces the negative pressure in making inner chamber I, outside air filters through air filter in the air inlet gets into the box, the air after the filtration cools off the cooling to the camera in the inner chamber II that gets into the casing through the air outlet, the air current passes through the venthole, gas passage and exhaust hole are discharged into in the atmosphere, because the air filters, its dust granule that contains is clear away, casing tail end and box seal weld, the ring flange is installed to its front end, install the glass piece in the ring flange, thereby can not pollute the image sensor chip of the inside of camera module when making the clearance between the air admission camera each part advance, the life of camera has been improved.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a side view of the bracket of the present invention;

in the figure, 1, a box body 2, an inner cavity I3, an air inlet 4, an air filter element 5, a fan 6, an air outlet 7, a shell 8, a support 9, an air outlet hole 10, an exhaust hole 11, a one-way valve 12, an air channel 13, a screw 14, a camera 15, an inner cavity II 16, a screw hole I17, a flange cover 18, a sealing ring I19, a through hole 20, a mounting hole 21, a glass sheet 22, a sealing ring II 23, a screw hole II 24, a nut 81, a support rod 82 and a mounting seat are arranged.

Detailed Description

The utility model will be further explained with reference to fig. 1 and 2.

The utility model provides a dustproof mechanism of camera module, includes: the air filter comprises a box body 1, an air inlet 3 is arranged at the rear end of the box body 1, an air outlet 6 is arranged at the front end of the box body, an inner cavity I2 is formed in the box body 1, an air filter element 4 is hermetically arranged at the position, located at the air inlet 3, of the rear end of the inner cavity I2 of the box body 1, and a fan 5 is arranged at the position, located at the air outlet 6, of the front end of the inner cavity I2 of the box body 1; the shell 7 is horizontally arranged, a closed inner cavity II 15 is formed in the openings at the front end and the rear end of the shell 7, the tail end of the shell 7 is welded and fixed at the front end of the box body 1, the opening position of the tail end of the shell 7 is communicated with the air outlet 6, and the camera 14 is horizontally arranged in the inner cavity II 15 through the support 8; a through hole 19 is horizontally formed in the center of the inner portion of the flange cover 17, a mounting hole 20 is coaxially formed in the front end of the through hole 19, the outer diameter of the mounting hole 20 is larger than that of the through hole 19, a screw hole I16 is formed in an opening in the front end of the shell 7, the rear end of the flange cover 17 is screwed in the screw hole I16 through external threads, a glass sheet 21 is embedded and mounted in the mounting hole 20, a screw hole II 23 is formed in the front end of the mounting hole 20, an annular nut 24 is screwed in the screw hole II 23 to press and fix the glass sheet 21 in the mounting hole 20, and a lens group of the camera 14 is located right behind the through hole 19; the air outlet 9 is of a blind hole structure and is vertically arranged at the front end of the shell 7, and the lower end of the air outlet 9 is communicated with the inner cavity II 15; the exhaust hole 10 is of a blind hole structure and is vertically arranged at the rear end of the shell 7, the upper end of the exhaust hole 10 is communicated with the atmosphere, and the upper end of the exhaust hole 9 is communicated with the lower end of the exhaust hole 10 through a gas channel 12 horizontally arranged in the shell 7. When the camera 14 works, the camera shoots after penetrating through the through hole 19 and the glass sheet 21, the fan 5 works to generate negative pressure in the inner cavity I2, external air enters the box body 1 through the air inlet 3 and is filtered through the air filter element 4, the filtered air enters the inner cavity II 15 of the shell 7 through the air outlet 6 to cool the camera 14, air flow is discharged into the atmosphere through the air outlet 9, the air channel 12 and the air exhaust hole 10, dust particles contained in the air are removed due to the filtering of the air, the tail end of the shell 7 is hermetically welded with the box body 1, the flange 17 is installed at the front end of the shell, the glass sheet 21 is installed in the flange 17, and therefore when the air enters gaps among the components of the camera 14, the image sensor chip in the camera module cannot be polluted, and the service life of the camera 14 is prolonged.

Preferably, the bracket 8 includes a semicircular mounting seat 82 and a horizontally arranged strut 81, the mounting seat 82 is fixed on the side wall of the rear end of the housing 7 through a screw 13, the tail end of the strut 81 is fixed on the mounting seat 82, and the camera 14 is fixed below the front end of the strut 81. The whole support 8 is simple in structure and convenient and fast to install.

Further, a check valve 11 is installed at the exhaust hole 10, and the check valve 11 makes the air flow from the exhaust hole 10 to the atmosphere in one direction. The one-way valve 11 can prevent external atmosphere from entering the inner cavity II 15 of the shell 7 through the exhaust hole 10, the gas channel 12 and the gas outlet hole 9 in sequence, and further ensure that dust is prevented from entering.

Preferably, a sealing ring i 18 is arranged between the flange cover 17 and the housing 7. The sealing ring i 18 improves the sealing of the connection between the flange cover 17 and the housing 7. A sealing ring II 22 is arranged between the glass sheet 21 and the flange cover 17. The sealing ring ii 22 can improve the sealing property at the joint between the glass sheet 21 and the flange cover 17.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dustproof mechanism of camera module which characterized in that includes:

the air filter comprises a box body (1), an air inlet (3) is arranged at the rear end of the box body (1), an air outlet (6) is arranged at the front end of the box body, an inner cavity I (2) is formed in the box body (1), an air filter element (4) is hermetically installed at the position, located at the air inlet (3), of the rear end of the inner cavity I (2) of the box body (1), and a fan (5) is arranged at the position, located at the air outlet (6), of the front end of the inner cavity I (2) of the box body (1);

the air conditioner comprises a shell (7), a closed inner cavity II (15) is formed in openings at the front end and the rear end of the shell (7), the tail end of the shell (7) is welded and fixed at the front end of a box body (1), the opening position of the tail end of the shell (7) is communicated with an air outlet (6), and a camera (14) is horizontally arranged in the inner cavity II (15) through a support (8);

the glass lens mounting structure comprises a flange cover (17), wherein a through hole (19) is formed in the center of the flange cover (17) in the horizontal direction, a mounting hole (20) is coaxially formed in the front end of the through hole (19), the outer diameter of the mounting hole (20) is larger than that of the through hole (19), a screw hole I (16) is formed in an opening in the front end of a shell (7), the rear end of the flange cover (17) is screwed into the screw hole I (16) through external threads, a glass sheet (21) is embedded into the mounting hole (20), a screw hole II (23) is formed in the front end of the mounting hole (20), a circular nut (24) is screwed into the screw hole II (23) to press and fix the glass sheet (21) into the mounting hole (20), and a lens group of a camera (14) is located right behind the through hole (19); and

the air outlet hole (9) is of a blind hole structure and is vertically arranged at the front end of the shell (7), and the lower end of the air outlet hole (9) is communicated with the inner cavity II (15); exhaust hole (10), for the blind hole structure, vertical setting in the rear end of casing (7), the upper end and the atmosphere in exhaust hole (10) are linked together, and the lower extreme that sets up in casing (7) through the level in the upper end of venthole (9) and exhaust hole (10) is linked together.

2. The dustproof mechanism of the camera module according to claim 1, wherein: support (8) include semicircular mount pad (82) and branch (81) that the level set up, mount pad (82) are fixed in on the lateral wall of casing (7) rear end through screw (13), and on the tail end of branch (81) was fixed in mount pad (82), camera (14) were fixed in the below of branch (81) front end.

3. The dustproof mechanism of the camera module according to claim 1, wherein: and a one-way valve (11) is arranged at the exhaust hole (10), and the one-way valve (11) enables air flow to flow into the atmosphere from the exhaust hole (10) in one way.

4. The dustproof mechanism of the camera module according to claim 1, wherein: a sealing ring I (18) is arranged between the flange cover (17) and the shell (7).

5. The dustproof mechanism of the camera module according to claim 1, wherein: and a sealing ring II (22) is arranged between the glass sheet (21) and the flange cover (17).