CN216852116U

CN216852116U - Heat-resisting camera and rear-view mirror system

Info

Publication number: CN216852116U
Application number: CN202220443168.XU
Authority: CN
Inventors: 潘磊
Original assignee: Shenzhen Germid Electronic Technology Co ltd
Current assignee: Shenzhen Germid Electronic Technology Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-28
Anticipated expiration: 2032-03-02

Abstract

The utility model provides a heat-resisting camera and rear-view mirror system, include: protective housing, circuit board, heat conduction shell, camera lens module and first heat-conducting piece. The protective shell is provided with an opening which is communicated with the outside. The circuit board is arranged on the protective shell. The heat conducting shell is provided with a shell top end and a shell bottom end, the shell top end is exposed out of the opening, and the shell bottom end is fixed on the circuit board. The lens module is arranged in the heat conduction shell, the top end of the lens is exposed out of the opening, and the bottom end of the lens is fixed on the circuit board. The first heat conducting piece is arranged between the lens module and the inner wall of the heat conducting shell and is simultaneously abutted against the outer wall of the lens module and the inner wall of the heat conducting shell so as to transfer heat emitted by the lens module to the heat conducting shell. The utility model provides a current camera radiating efficiency low problem in narrow installation space.

Description

Heat-resistant camera and rearview mirror system

Technical Field

The utility model relates to an on-vehicle electronic product especially relates to heat-resisting camera and rear-view mirror system.

Background

In order to obtain the image data behind the automobile, a camera can be arranged at the tail of the automobile, a display is arranged at the front of the automobile, and the image acquired by the camera is transmitted to the display for displaying. In order to make the camera under each temperature environment work that can both be stable, need the camera to have high temperature resistant structural design usually, chinese patent CN204859346U discloses an infrared night vision vehicle camera, including the shell, install CCD camera, infrared lighting lamp in the shell, LED lens and heating panel, the CCD camera is located foremost, and the LED lens is installed between CCD camera and infrared lighting lamp, and the heating panel is installed to the infrared lighting lamp rear. And a waterproof ring is arranged between the CCD camera and the shell. The edge of the heat dissipation plate is in contact with the inner wall of the shell, and the shape of the heat dissipation plate is the same as the cross section of the shell at the installation position. This design lets the camera can work under high temperature environment through setting up heating panel and heat-conducting shell, but has air gap (the air is hot bad medium) between this type of camera and the shell, leads to camera heat transfer efficiency lower. Meanwhile, the heat dissipation plate and the shell are in direct contact with the external environment (the temperature of the normal external environment is usually low), the heat dissipation plate and the shell can directly transfer heat to the outside, and the heat dissipation plate and the shell can transfer heat generated by the camera without high heat conductivity. When the camera itself still has a sealed casing (i.e. the camera is in the sealed casing), because the air temperature itself of the sealed space around the camera is high, the camera can be too slow in heat dissipation, and the camera cannot be used. Therefore, the existing camera has the problem of low heat dissipation efficiency in a narrow installation space.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a heat-resisting camera, include: protective housing, circuit board, heat conduction shell, camera lens module and first heat-conducting piece. The protective shell is provided with an opening which is communicated with the outside. The circuit board is arranged on the protective shell. The heat-conducting shell is provided with a shell top end and a shell bottom end, the shell top end is exposed out of the opening, and the shell bottom end is fixed on the circuit board. The lens module is arranged in the heat conduction shell, the top end of the lens is exposed out of the opening, and the bottom end of the lens is fixed on the circuit board. The first heat conducting piece is arranged between the lens module and the inner wall of the heat conducting shell, and the first heat conducting piece is simultaneously abutted against the outer wall of the lens module and the inner wall of the heat conducting shell so as to transfer heat emitted by the lens module to the heat conducting shell.

Preferably, the first heat-conducting member is sleeved on the lens module.

Preferably, the top end of the first heat conduction member is close to the top end of the shell, and the bottom end of the first heat conduction member abuts against one side of the circuit board.

Preferably, the first heat-conducting member is a circular tube.

Preferably, the first heat conducting member is made of heat conducting silica gel.

Preferably, the heat-resistant camera further includes a second heat-conducting member disposed on the other side of the circuit board in an abutting manner, and the second heat-conducting member is configured to conduct heat dissipated from the circuit board to the inside of the protective casing.

Preferably, the shape of the bottom surface of the second heat-conducting member is substantially the same as the shape of the bottom surface of the circuit board.

Preferably, the second heat conducting member is made of heat conducting silica gel.

Preferably, the material of the heat-conducting shell is aluminum alloy.

The utility model also provides a rear-view mirror system, include: the heat-resistant camera and the interior rearview mirror. The heat-resistant camera is arranged on the rear windshield of the automobile. The inner rear-view mirror is arranged on the front windshield of the automobile, and the inner rear-view mirror is electrically connected with the heat-resistant camera.

The beneficial effects of the utility model reside in that: through set up first heat-conducting piece between camera lens module and heat conduction shell inner wall, let first heat-conducting piece butt in camera lens module outer wall and heat conduction shell inner wall simultaneously, realize the heat transfer to the heat conduction shell that gives off the camera lens module. Set up first heat-conducting piece between camera lens module and heat conduction shell inner wall, compare in between camera lens module and the heat conduction shell inner wall for the air medium, the radiating efficiency of camera lens module has obtained improving greatly. Because the top end of the shell of the heat conduction shell is exposed out of the opening, the heat transferred to the heat conduction shell can be directly dissipated to the outside through the opening. Even if the lens module is in the closed protective shell, the lens module cannot work because the heat generated by the lens module is not dissipated in time.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the specification, the present invention will be described in detail with the embodiments of the present invention preferred below in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a perspective view of a heat-resistant camera in an embodiment of the present invention;

fig. 2 is a right side view of the heat-resistant camera in the embodiment of the present invention;

fig. 3 is a sectional view taken along line a-a of fig. 2 in an embodiment of the present invention;

fig. 4 is an enlarged view of fig. 3 from B in the embodiment of the present invention;

fig. 5 is a system block diagram of a rearview mirror system in an embodiment of the invention;

fig. 6 is an installation schematic diagram of the rearview mirror system in the embodiment of the present invention.

Wherein, the reference numbers:

1 Heat-resistant camera

10 protective housing

100 opening

11 circuit board

12 thermally conductive housing

120 top of the shell

121 bottom of the outer casing

13 lens module

130 lens top

131 lens bottom

14 first heat-conducting member

15 second heat-conducting member

2 inner rear-view mirror

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 4, a heat-resistant camera 1 of the present embodiment is disclosed, which includes: the lens module comprises a protective shell 10, a circuit board 11, a heat conduction shell 12, a lens module 13 and a first heat conduction piece 14. For example, the protective housing 10 may be made of plastic. The protective casing 10 is provided with an opening 100, and the opening 100 communicates with the outside. The circuit board 11 is disposed in the protective housing 10. For example, the Circuit Board 11 may be a PCB (Printed Circuit Board, chinese name) Board. The circuit board 11 may be fixed to the protective housing 10 by screwing, riveting or gluing, for example, to a base of the protective housing 10. The heat conductive housing 12 has a top end 120 and a bottom end 121, the top end 120 is exposed out of the opening 100, and the bottom end 121 is fixed to the circuit board 11. For example, the bottom end 121 of the housing may be screwed or glued to the circuit board 11. The lens module 13 has a lens top end 130 and a lens bottom end 131, the lens module 13 is located inside the heat conductive housing 12, the lens top end 130 is exposed out of the opening 100, and the lens bottom end 131 is fixed to the circuit board 11. For example, the lens bottom end 131 can be fixed to the circuit board 11 by screwing or gluing. The first heat conducting member 14 is disposed between the lens module 13 and the inner wall of the heat conducting casing 12, and the first heat conducting member 14 abuts against the outer wall of the lens module 13 and the inner wall of the heat conducting casing 12 to transfer the heat emitted from the lens module 13 to the heat conducting casing 12.

By arranging the first heat-conducting piece 14 between the lens module 13 and the inner wall of the heat-conducting shell 12, the first heat-conducting piece 14 is abutted to the outer wall of the lens module 13 and the inner wall of the heat-conducting shell 12 at the same time, so that the heat emitted by the lens module 13 is transferred to the heat-conducting shell 12. The first heat-conducting member 14 is disposed between the lens module 13 and the inner wall of the heat-conducting housing 12, so that the heat dissipation efficiency of the lens module 13 is greatly improved compared with the case where an air medium is disposed between the lens module 13 and the inner wall of the heat-conducting housing 12. Since the top end 120 of the heat-conducting shell 12 is exposed to the opening 100, the heat transferred to the heat-conducting shell 12 can be directly dissipated to the outside through the opening 100. Even if the lens module 13 is in the closed protective housing 10, the lens module 13 will not fail to work because the heat generated by the lens module 13 is not dissipated in time.

Referring to fig. 3 and fig. 4, preferably, the first heat conducting element 14 is sleeved on the lens module 13. The first heat-conducting piece 14 is sleeved on the lens module 13, so that the first heat-conducting piece 14 can be conveniently installed, because the space between the lens module 13 and the inner wall 2 of the heat-conducting shell 1 is narrow, the difficulty of directly placing the first heat-conducting piece 14 is high, the first heat-conducting piece 14 is sleeved on the lens module 13, and then the assembly of the first heat-conducting piece 14 and the heat-conducting shell 12 is placed in the lens module 13, so that the installation difficulty of the first heat-conducting piece 14 can be reduced.

Referring to fig. 3 and 4, preferably, the top end of the first heat-conducting member 14 is close to the top end 120 of the housing, and the bottom end of the first heat-conducting member 14 abuts against one side of the circuit board 11. The top end of the first heat conducting member 14 is close to the top end 120 of the housing, and the bottom end of the first heat conducting member 14 is abutted to one side of the circuit board 11, so that the lens module 13 is wrapped by the first heat conducting member 14, and the area of the heat conducting area of the lens module 13 covered by the first heat conducting member 14 is increased.

Referring to fig. 3 and 4, preferably, the first heat-conducting member 14 is a circular tube.

Preferably, the material of the first heat-conducting member 14 is heat-conducting silicone.

Referring to fig. 3 and 4, preferably, the heat-resistant camera 1 further includes a second heat-conducting member 15 disposed on the other side of the circuit board 11, and the second heat-conducting member 15 is used for conducting heat dissipated from the circuit board 11 to the inside of the protective casing 10. For example, after the second heat conduction member 15 abuts against the circuit board 11, the combination of the two can be fixed to the protective housing 10 by screwing, riveting or gluing.

Preferably, the shape of the bottom surface of the second heat-conductive member 15 is substantially the same as the shape of the bottom surface of the circuit board 11. The bottom shape of the second heat conduction member 15 is substantially the same as the bottom shape of the circuit board 11, so that the heat of the heat generating points on the bottom surface of the circuit board 11 can be transferred to the inside of the protective casing 10 through the second heat conduction member 15.

Preferably, the material of the second heat-conducting member 15 is heat-conducting silicone.

Preferably, the material of the thermally conductive housing 12 is an aluminum alloy.

Referring to fig. 5 and 6 together, in another embodiment, a rearview mirror system is provided, including: a heat resistant camera 1 and an interior rear view mirror 2. The heat-resistant camera 1 is provided in a rear windshield of an automobile. For example, the heat-resistant camera 1 may be adhered to the inside of the rear windshield of an automobile with tape. Interior rear-view mirror 2 sets up in the front windshield of car, and interior rear-view mirror 2 and heat-resisting camera 1 pass through cable electric connection. After the heat-resistant camera 1 is arranged, the heat resistance of the whole rearview mirror system can be improved, and the rearview mirror system can be applied to the environment with higher temperature.

It is right above the embodiment of the present invention provides a heat-resistant camera and rearview mirror system, which has been described in detail, and to the general technical personnel in the field, the idea of the embodiment of the present invention has some changes in the specific implementation and application scope. In summary, the present specification should not be construed as limiting the present invention, and all equivalent modifications or changes made according to the spirit and technical ideas of the present invention should be covered by the claims of the present invention.

Claims

1. A heat resistant camera, comprising:

a protective housing provided with an opening communicating with the outside;

a circuit board disposed on the protective housing;

a heat conductive housing having a housing top end and a housing bottom end, the housing top end being exposed at the opening, the housing bottom end being secured to the circuit board;

the lens module is provided with a lens top end and a lens bottom end, the lens module is positioned inside the heat conduction shell, the lens top end is exposed out of the opening, and the lens bottom end is fixed on the circuit board; and

the first heat conducting piece is arranged between the lens module and the inner wall of the heat conducting shell, and the first heat conducting piece is abutted to the outer wall of the lens module and the inner wall of the heat conducting shell at the same time so as to transfer heat emitted by the lens module to the heat conducting shell.

2. The camera of claim 1, wherein the first thermal conductive member is disposed on the lens module.

3. The camera of claim 2, wherein the top end of the first thermal conductor member is proximate the top end of the housing and the bottom end of the first thermal conductor member abuts a side of the circuit board.

4. The camera of claim 2, wherein the first thermally conductive member is tubular.

5. The camera of claim 1, wherein the first thermal conductive member is a thermally conductive silicone.

6. The camera of claim 1, further comprising a second heat-conducting member disposed on the other side of the circuit board in an abutting manner, wherein the second heat-conducting member is configured to conduct heat dissipated from the circuit board to the inside of the protective housing.

7. The camera of claim 6, wherein the second thermal conductive member has a bottom surface that is substantially the same shape as a bottom surface of the circuit board.

8. The camera of claim 6, wherein the second thermal conductive member is a thermally conductive silicone.

9. The camera of claim 1, wherein the thermally conductive housing is made of an aluminum alloy.

10. A rearview mirror system, comprising:

the heat resistant camera of any of claims 1-9 disposed on a rear windshield of an automobile; and

the inner rear-view mirror, it set up in the front windshield of car, the inner rear-view mirror with heat-resisting camera electric connection.