CN218914672U

CN218914672U - PCB board mounting structure with heat dissipation function

Info

Publication number: CN218914672U
Application number: CN202222361954.8U
Authority: CN
Inventors: 王豪; 孙海青; 范春州
Original assignee: Hainachuan Haila Sanhe Car Light Co ltd
Current assignee: Hainachuan Haila Sanhe Car Light Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-04-25
Anticipated expiration: 2032-09-06

Abstract

The utility model provides a PCB board mounting structure with a heat dissipation function, which comprises a mounting frame fixedly mounted in a lamp housing, wherein a heat dissipation plate is fixedly mounted on the bottom surface of the mounting frame, and a PCB board is mounted between the heat dissipation plate and the mounting frame; the cooling plate comprises a pressing plate which is arranged opposite to the PCB, a plurality of pressing rods and pressing plates located at the edges of the PCB are additionally arranged on the bottom surface of the mounting frame, pressing protrusions are arranged on one surface of the pressing plates, which faces the pressing plates, the pressing protrusions are tightly attached to the bottom surface of the pressing plates, and the suspended ends of the pressing rods are tightly attached to the top surface of the pressing plates. The utility model can save the production cost and has simple and quick installation process.

Description

PCB board mounting structure with heat dissipation function

Technical Field

The utility model relates to the technical field of PCB (printed circuit board) mounting structures in car headlights, in particular to a PCB mounting structure with a heat dissipation function.

Background

Along with the improvement of living standard, the functions of the headlight of the automobile are also becoming more and more diversified, for example, the irradiation angle of the dipped headlight or the high beam is automatically adjusted according to the brightness of the current environment of the headlight, so that a driver can conveniently see the road condition in front of a road. To achieve this function, a PCB board for controlling the operation of the lamp is usually installed and removed in the headlight. But normal headlight internal heat productivity is big, need print a heating panel and other connection structure that is used for installing the PCB board for the PCB board, lead to the PCB subassembly overall structure of installing in the lamp body complicated, manufacturing cost is high and assembly process is complicated.

Disclosure of Invention

In view of the above, the present utility model provides a PCB board mounting structure with heat dissipation function, which can save production cost and has a simple and rapid mounting process.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the PCB board mounting structure with the heat dissipation function comprises a mounting frame fixedly mounted in a lamp housing, wherein a heat dissipation plate is fixedly mounted on the bottom surface of the mounting frame, and a PCB board is mounted between the heat dissipation plate and the mounting frame;

the cooling plate comprises a pressing plate which is arranged opposite to the PCB, a plurality of pressing rods and pressing plates located at the edges of the PCB are additionally arranged on the bottom surface of the mounting frame, pressing protrusions are arranged on one surface of the pressing plates, which faces the pressing plates, the pressing protrusions are tightly attached to the bottom surface of the pressing plates, and the suspended ends of the pressing rods are tightly attached to the top surface of the pressing plates.

Further, the mounting bracket bottom surface is along clamp plate edge and arrange and be provided with the first fender platform of a plurality of location, first fender platform is higher than the pressure strip setting.

Further, a plurality of through holes opposite to the pressing rods are formed in the PCB.

Further, the through holes comprise first through holes and second through holes, the first through holes are long hole structures, and the length direction of each long hole is directed to the second through hole.

Further, the bottom surface of the mounting frame is provided with a second baffle with the same horizontal section shape as the edge structure of the PCB, and the second baffle is tightly attached to all edges of the PCB.

Further, the horizontal section shape of the second baffle is not closed.

Further, the second baffle is lower than the first baffle and the pressing plate.

The utility model has the advantages and positive effects that:

through setting up pressure strip and hold-down bar in the mounting bracket bottom surface to the bottom surface of heating panel solid joint at the mounting bracket, still be provided with the second fender platform simultaneously in the bottom surface of mounting bracket for fall PCB board fixed joint and install between heating panel and mounting bracket, need not to use too much connecting piece, can accomplish the assembly of mounting bracket, PCB board and heating panel, effectual saving manufacturing cost and, the mounting process is simple quick.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a block diagram showing a PCB board mounting structure with heat dissipation function and mounted on a lamp housing according to the present utility model;

fig. 2 is a diagram showing the whole structure of a PCB board mounting structure with heat dissipation function according to the present utility model;

fig. 3 is a bottom view of a PCB board mounting structure with heat dissipation function according to the present utility model.

In the figure: 1. a lamp housing; 2. a PCB assembly; 3. a heat dissipation plate; 301. a heat sink; 302. a pressing plate; 4. a mounting frame; 401. a mounting hole; 402. a first baffle; 403. a compacting plate; 404. a second baffle; 405. a pressing rod; 5. a PCB board; 501. a first through hole; 502. and a second through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components 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. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The utility model provides a PCB board mounting structure with a heat dissipation function, which is shown in fig. 1-2, and comprises a lamp housing 1 for mounting a car lamp, wherein a PCB assembly 2 and a plurality of illuminating lamps are integrally mounted in the lamp housing 1, the PCB assembly 2 comprises a heat dissipation plate 3, a PCB board 5 and a mounting frame 4, and the action of the illuminating lamps is controlled through the PCB board 5. The PCB 5 is installed between the cooling plate 3 and the mounting bracket in a clamping mode, the cooling plate 3 is used for cooling the PCB 5, and the mounting frame 4 is used for being fixedly connected with the lamp housing 1 so as to fixedly install the PCB 5 in the lamp housing 1.

The cooling plate 3 is installed to mounting bracket 4 bottom surface joint, and PCB board 5 is installed between mounting bracket 4 and cooling plate 3. The heat dissipation plate 3 comprises a pressing plate 302 with the same structure as the PCB 5, and a plurality of heat dissipation fins 301 are arranged on the bottom surface of the pressing plate 302. The edge arrangement of clamp plate 302 is provided with a plurality of first fender platforms 402 for inject the mounted position of clamp plate 302, first fender platform 402 and mounting bracket 4 integrated into one piece set up, in order to avoid the heating panel 3 to produce relative movement with mounting bracket 4 in the vehicle driving process. Preferably, each edge of the platen 302 is provided with a first stop 402 snugly.

As shown in fig. 3, the bottom surface of the mounting frame 4 is provided with a pressing plate 403, the pressing plate 403 is provided with a pressing protrusion facing the pressing plate 302, the pressing protrusion is in contact with the bottom surface of the pressing plate 302 and is used for pressing the bottom surface of the pressing plate 302, a plurality of pressing rods 405 are correspondingly added on the bottom surface of the mounting frame 4, a plurality of through holes are correspondingly formed in the pcb board 5, and the suspension end of the pressing rod 405 passes through the through holes and then is in close contact with the top surface of the pressing plate 302, so that the heat dissipation plate 3 is installed between the pressing rods 405 and the pressing protrusion in a clamping manner, the installation stability of the heat dissipation plate 3 is improved, and the first baffle 402 is higher than the pressing plate 403, so that the heat dissipation plate 3 is positioned and then clamped. Meanwhile, the pressing rods 405 penetrate through the through holes in the PCB 5, and have a certain positioning effect on the PCB 5.

Preferably, two pressing rods 405 are provided on the bottom surface of the mounting frame 4, two through holes corresponding to each other are provided on the PCB 5, namely a first through hole 501 and a second through hole 502, so as to reduce the precision of the cooperation between the PCB 5 and the pressing rods 405, and the first through hole 501 is a long hole structure. And the longitudinal direction of the first through hole 501 is set toward the second through hole 502.

The car can take frequent removal and the shake of car light in the process of traveling, in order to avoid producing displacement and rotation at shake in-process PCB half board, influence the connection stability of PCB board 5 and wire, increase in the bottom surface of mounting bracket 4 and be equipped with second fender platform 404, the edge setting of PCB board 5 is pressed to second fender platform 404 lateral wall for install PCB board 5 chucking in second fender platform 404, effectually avoid PCB board 5 and mounting bracket 4 to produce relative displacement and rotation.

The PCB 5 is conveniently installed into the second baffle 404 or taken out from the second baffle 404, the horizontal section of the second baffle 404 is not sealed, and the installation stability of the PCB 5 is ensured, and meanwhile, the installation and the disassembly of the PCB 5 are convenient. Preferably, the PCB board 5 has a rectangular structure, and the video section of the second baffle 404 is provided with a corner. And to avoid the compression plate 403 and the first stage 402 from affecting the performance of the second stage 404, the second stage 404 is positioned lower than the compression plate 403 and the first stage 402.

The edge of the mounting frame 4 is provided with a mounting hole 401 for fixedly connecting the mounting frame 4 with the top shell so as to integrally and fixedly mount the PCB assembly 2 in the lamp housing 1.

The working principle and working process of the utility model are as follows:

when the PCB assembly 2 is assembled, the through holes on the PCB 5 are placed opposite to the pressing rods 405, and the PCB 5 is clamped into the second baffle 404 in the process that the pressing rods 405 pass through the through holes, so that the installation of the PCB 5 is completed. One surface of the pressing plate 302 far away from the PCB 5 is placed opposite to the PCB 5, each edge of the pressing plate 302 is tightly attached to the corresponding side wall of the first baffle plate 402, the heat dissipation plate 3 is moved to be close to the PCB 5, the pressing protrusions on the pressing plate 403 are moved to the back surface of the pressing plate 302, meanwhile, the front surface of the pressing plate 302 is tightly attached to the pressing rod 405, and the installation of the heat dissipation plate 3 is completed. The mounting frame 4 is fixedly connected with the lamp housing 1 through the mounting hole 401, and the mounting process of the PCB assembly 2 is completed. The mounting structure of the PCB assembly 2 does not need a large number of connecting pieces to connect the mounting frame 4 with the PCB 5 and the heat dissipation plate 3, the PCB 5 and the heat dissipation plate 3 are fixedly connected with the mounting frame 4 in a clamping manner, the mounting is convenient, the production cost is saved (the changed connecting pieces are not needed), and the mounting time is also saved.

The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by this patent.

Claims

1. The PCB mounting structure with the heat dissipation function is characterized by comprising a mounting frame (4) fixedly mounted in a lamp housing (1), wherein a heat dissipation plate (3) is fixedly mounted on the bottom surface of the mounting frame (4), and a PCB (5) is mounted between the heat dissipation plate (3) and the mounting frame (4);

the cooling plate (3) comprises a pressing plate (302) which is arranged opposite to the PCB (5), a plurality of pressing rods (405) and pressing plates (403) positioned at the edge of the PCB (5) are additionally arranged on the bottom surface of the mounting frame (4), pressing protrusions are arranged on one surface of each pressing plate (403) facing the pressing plate (302), the pressing protrusions are tightly attached to the bottom surface of the pressing plate (302), and the suspended ends of the pressing rods (405) are tightly attached to the top surface of the pressing plate (302).

2. The PCB board mounting structure with heat dissipation function according to claim 1, wherein a plurality of first blocking platforms (402) for positioning are arranged on the bottom surface of the mounting frame (4) along the edge of the pressing plate (302), and the first blocking platforms (402) are higher than the pressing plate (403).

3. The PCB board mounting structure with heat dissipation function of claim 1, wherein the PCB board (5) is provided with a plurality of through holes opposite to the pressing rod (405).

4. A PCB board mounting structure with a heat dissipation function according to claim 3, wherein the through hole includes a first through hole (501) and a second through hole (502), the first through hole (501) is a long hole structure, and a length direction of the long hole is directed to the second through hole (502).

5. The PCB mounting structure with the heat dissipation function according to claim 1, wherein a second baffle (404) with the same horizontal cross-section shape as the edge shape of the PCB (5) is arranged on the bottom surface of the mounting frame (4), and the second baffle (404) is closely attached to all edges of the PCB (5).

6. The structure according to claim 5, wherein the second block (404) is not closed in horizontal cross-sectional shape.

7. The PCB mounting structure with heat dissipation function of claim 5, wherein the second baffle (404) is lower than the first baffle (402) and the pressing plate (403).