CN215500167U

CN215500167U - Heat radiation structure of PCB fixed plate

Info

Publication number: CN215500167U
Application number: CN202121240537.7U
Authority: CN
Inventors: 文美连
Original assignee: Shaoxing Jingrui Plastic Products Co ltd
Current assignee: Shaoxing Jingrui Plastic Products Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-01-11
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a heat dissipation structure of a PCB fixing plate, and relates to the technical field of PCB assembly heat dissipation. The rectifier bridge comprises a PCB fixing plate, wherein a green plate is fixedly connected to the top of the PCB fixing plate, a rectifier bridge body is arranged on the top of the green plate, a heat-conducting double-sided adhesive tape is fixedly connected to the bottom of the rectifier bridge body, the bottom of the heat-conducting double-sided adhesive tape is fixedly connected with the top of the green plate, a heat dissipation port is formed in the top of the PCB fixing plate, the top of the heat dissipation port penetrates through the top of the green plate, heat-conducting adhesive is fixedly connected to two sides of the rectifier bridge body, and a heat dissipation plate is arranged on the right side of the rectifier bridge body. The utility model solves the problems that most of the existing PCB fixing plate rectifier bridges are made of aluminum plates for heat dissipation, the heat dissipation effect is poor, and the heat dissipation efficiency of the PCB fixing plate rectifier bridges and air exchange is reduced.

Description

Heat radiation structure of PCB fixed plate

Technical Field

The utility model relates to the technical field of PCB assembly heat dissipation, in particular to a heat dissipation structure of a PCB fixing plate.

Background

The PCB fixed plate is one of the important parts of electronic industry, the PCB fixed plate is except fixing various small electronic parts, its main function still provides the mutual electrical connection of various electronic parts, and the rectifier bridge is as a common power components and parts, the main action is to become the direct current with alternating current rectification filtering, be one of the indispensable electronic components of PCB fixed plate, because the through current of PCB fixed plate rectifier bridge is great, consequently, be one of the main heat source in the circuit, but current PCB fixed plate rectifier bridge is aluminum plate's heat dissipation mostly, the radiating effect is relatively poor, PCB fixed plate rectifier bridge and the radiating efficiency of air exchange have been reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model aims to provide a heat dissipation structure of a PCB fixing plate, which has the advantage of good heat dissipation effect and solves the problems that most of the existing rectifier bridges of the PCB fixing plate are made of aluminum plates, the heat dissipation effect is poor, and the heat dissipation efficiency of the rectifier bridges of the PCB fixing plate and air exchange is reduced.

The utility model provides the following technical scheme: a heat dissipation structure of a PCB fixing plate comprises the PCB fixing plate, a green plate is fixedly connected with the top of the PCB fixing plate, the top of the green plate is provided with a rectifier bridge body, the bottom of the rectifier bridge body is fixedly connected with a heat-conducting double-faced adhesive tape, the bottom of the heat-conducting double-sided adhesive tape is fixedly connected with the top of the green plate, the top of the PCB fixing plate is provided with a heat dissipation port, the top of the heat dissipation port penetrates to the top of the green plate, heat-conducting glue is fixedly connected to both sides of the rectifier bridge body, the right side of the rectifier bridge body is provided with a heat dissipation plate, one side of the heat dissipation plate close to the heat conducting glue is fixedly connected with the surface of the heat conducting glue, the rectifier bridge comprises a rectifier bridge body and is characterized in that a radiating fin is arranged on the left side of the rectifier bridge body, one side, close to heat-conducting glue, of the radiating fin is fixedly connected with the surface of the heat-conducting glue, and heat-conducting fins are fixedly connected to the front side and the back side of the rectifier bridge body.

The left side fixedly connected with fixed block one of rectifier bridge body, the top of fixed block one and the bottom fixed connection of fin, the bottom of fixed block one and the top fixed connection of heat conduction double-sided adhesive tape.

The right side fixedly connected with fixed block two of rectifier bridge body, the top of fixed block two and the bottom fixed connection of heating panel, the bottom of fixed block two and the top fixed connection of heat conduction double-sided adhesive tape.

The top of fixed block one and fixed block two all is provided with the screw, the bottom of screw run through to the inside of PCB fixed plate and with the inside threaded connection of PCB fixed plate.

The surface cover of screw is equipped with the gasket, the top of fixed block one and fixed block two all contacts with the bottom of gasket.

The heat conducting fin is made of a heat conducting silica gel sheet, the number of the heat radiating openings is a plurality, and the plurality of the heat radiating openings are uniformly distributed.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model solves the problems that most of the existing PCB fixing plate rectifier bridges are made of aluminum plates for heat dissipation, the heat dissipation effect is poor, and the heat dissipation efficiency of the PCB fixing plate rectifier bridges and air exchange is reduced. According to the utility model, the first fixing block is arranged, so that auxiliary support can be carried out on the radiating fins and the rectifier bridge body, and the stability of the radiating fins is improved. According to the utility model, the second fixing block is arranged, so that the heat dissipation plate and the rectifier bridge body can be supported in an auxiliary manner, and the stability of the heat dissipation plate and the rectifier bridge body is improved.

2. According to the rectifier bridge, the screws are arranged, so that the rectifier bridge body can be stably fixed to the top of the green plate through the first fixing block and the second fixing block, and the stability of the rectifier bridge body is improved. According to the utility model, through arranging the gasket, the friction force between the screw and the first fixing block and the second fixing block can be increased. According to the utility model, the heat conducting fin is made of the heat conducting silica gel sheet, so that the practicability of the heat conducting fin is improved.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a perspective view of the heat sink plate of the present invention.

Detailed Description

The technical solution in 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.

As shown in fig. 1 to 3, the rectifier bridge comprises a PCB fixing plate 1, a green plate 2 is fixedly connected to the top of the PCB fixing plate 1, a rectifier bridge body 3 is arranged on the top of the green plate 2, a heat-conducting double-sided adhesive tape 4 is fixedly connected to the bottom of the rectifier bridge body 3, the bottom of the heat-conducting double-sided adhesive tape 4 is fixedly connected to the top of the green plate 2, a heat dissipation port 5 is formed in the top of the PCB fixing plate 1, the top of the heat dissipation port 5 penetrates through the top of the green plate 2, heat-conducting adhesive 6 is fixedly connected to both sides of the rectifier bridge body 3, a heat dissipation plate 7 is arranged on the right side of the rectifier bridge body 3, one side of the heat dissipation plate 7, which is close to the heat-conducting adhesive 6, is fixedly connected to the surface of the heat-conducting adhesive 6, a heat dissipation plate 8 is arranged on the left side of the rectifier bridge body 3, one side of the heat dissipation plate 8, which is close to the heat-conducting adhesive 6, is fixedly connected to the surface of the heat-conducting adhesive 6, and heat-conducting fins 9 are fixedly connected to both the front side and the back side of the rectifier bridge body 3.

Referring to fig. 1, a first fixing block 10 is fixedly connected to the left side of the rectifier bridge body 3, the top of the first fixing block 10 is fixedly connected to the bottom of the heat sink 8, and the bottom of the first fixing block 10 is fixedly connected to the top of the heat-conducting double-sided adhesive tape 4.

This embodiment can carry out auxiliary stay to fin 8 and rectifier bridge body 3 through setting up fixed block 10, has improved fin 8's stability.

Referring to fig. 1, a second fixing block 11 is fixedly connected to the right side of the rectifier bridge body 3, the top of the second fixing block 11 is fixedly connected to the bottom of the heat dissipation plate 7, and the bottom of the second fixing block 11 is fixedly connected to the top of the heat-conducting double-sided adhesive tape 4.

This embodiment can carry out auxiliary stay to heating panel 7 and rectifier bridge body 3 through setting up two 11 of fixed block, has improved heating panel 7 and rectifier bridge body 3's stability.

Referring to fig. 2, screws 12 are disposed at the tops of the first fixing block 10 and the second fixing block 11, and the bottoms of the screws 12 penetrate into the PCB fixing plate 1 and are in threaded connection with the inside of the PCB fixing plate 1.

This embodiment is through setting up screw 12, can be through fixing the top at green board 2 with rectifier bridge body 3 is stable with two 11 fixed blocks of fixed block 10, has improved rectifier bridge body 3's stability.

Referring to fig. 2, a gasket 13 is sleeved on the surface of the screw 12, and the tops of the first fixing block 10 and the second fixing block 11 are both in contact with the bottom of the gasket 13.

In the embodiment, the friction force between the screw 12 and the first fixing block 10 and the second fixing block 11 can be increased by arranging the gasket 13.

Referring to fig. 1, the heat-conducting sheet 9 is made of a heat-conducting silicone sheet, the number of the heat-dissipating ports 5 is several, and the several heat-dissipating ports 5 are uniformly distributed.

This embodiment is made by heat conduction silica gel piece through setting up conducting strip 9, has improved conducting strip 9's practicality.

After the rectifier bridge body 3 of the utility model generates heat during working, because the bottom of the rectifier bridge body 3 is fixed with the top of the green plate 2 through the heat-conducting double-sided adhesive tape 4, the heat generated by the rectifier bridge body 3 can be transmitted to the surface of the green plate 2 for heat dissipation while the rectifier bridge body 3 generates heat, meanwhile, the heat generated during the working of the rectifier bridge body 3 is further dissipated and dissipated in multiple directions through the heat-conducting adhesive 6, the heat dissipation plate 7, the heat dissipation fins 8 and the heat conduction fins 9 on the surface of the rectifier bridge body 3, so that the heat generated during the working of the rectifier bridge body 3 is further cooled, and meanwhile, the PCB fixing plate 1 and the heat dissipation port 5 at the bottom of the green plate 2 can further dissipate the heat of other parts at the top of the green plate 2 and the rectifier bridge body 3, thereby achieving the effect of good heat dissipation effect.

Claims

1. The utility model provides a heat radiation structure of PCB fixed plate, includes PCB fixed plate (1), its characterized in that: the top of the PCB fixing plate (1) is fixedly connected with a green plate (2), the top of the green plate (2) is provided with a rectifier bridge body (3), the bottom of the rectifier bridge body (3) is fixedly connected with a heat-conducting double-faced adhesive tape (4), the bottom of the heat-conducting double-faced adhesive tape (4) is fixedly connected with the top of the green plate (2), the top of the PCB fixing plate (1) is provided with a heat dissipation port (5), the top of the heat dissipation port (5) penetrates through the top of the green plate (2), both sides of the rectifier bridge body (3) are fixedly connected with heat-conducting adhesive (6), the right side of the rectifier bridge body (3) is provided with a heat dissipation plate (7), one side of the heat dissipation plate (7), which is close to the heat-conducting adhesive (6), is fixedly connected with the surface of the heat-conducting adhesive (6), the left side of the rectifier bridge body (3) is provided with a heat dissipation plate (8), one side of the heat dissipation plate (8), which is close to the heat-conducting adhesive (6), is fixedly connected with the surface of the heat-conducting adhesive (6), the front and the back of the rectifier bridge body (3) are fixedly connected with heat conducting fins (9).

2. The heat dissipation structure of a PCB fixing plate as set forth in claim 1, wherein: the rectifier bridge body (3) is characterized in that a first fixing block (10) is fixedly connected to the left side of the rectifier bridge body, the top of the first fixing block (10) is fixedly connected with the bottom of the radiating fin (8), and the bottom of the first fixing block (10) is fixedly connected with the top of the heat-conducting double-faced adhesive tape (4).

3. The heat dissipation structure of a PCB fixing plate as set forth in claim 2, wherein: the right side fixedly connected with fixed block two (11) of rectifier bridge body (3), the top of fixed block two (11) and the bottom fixed connection of heating panel (7), the bottom of fixed block two (11) and the top fixed connection of heat conduction double faced adhesive tape subsides (4).

4. The heat dissipation structure of a PCB fixing plate as set forth in claim 3, wherein: the top of fixed block one (10) and fixed block two (11) all is provided with screw (12), the bottom of screw (12) run through to the inside of PCB fixed plate (1) and with the inside threaded connection of PCB fixed plate (1).

5. The heat dissipation structure of a PCB fixing plate as set forth in claim 4, wherein: the surface cover of screw (12) is equipped with gasket (13), the top of fixed block one (10) and fixed block two (11) all contacts with the bottom of gasket (13).

6. The heat dissipation structure of a PCB fixing plate as set forth in claim 5, wherein: the heat conducting fins (9) are made of heat conducting silica gel sheets, the number of the heat radiating ports (5) is a plurality, and the plurality of the heat radiating ports (5) are uniformly distributed.