CN213280237U

CN213280237U - Power device heat dissipation fixing device

Info

Publication number: CN213280237U
Application number: CN202022626278.3U
Authority: CN
Inventors: 张安国; 王宏
Original assignee: Sichuan Changhong Precision Electronic Technology Co ltd; Sichan Ai Chance Technology Co ltd
Current assignee: Sichuan Changhong Precision Electronic Technology Co ltd; Sichan Ai Chance Technology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-05-25
Anticipated expiration: 2030-11-13

Abstract

The utility model relates to the field of fixing pieces, in particular to a power device fixing piece; the utility model aims to solve the technical problem that a power device heat dissipation fixing device that can fix a position and fix power device is provided. Power device heat dissipation fixing device, including the U-shaped board, the U-shaped board comprises two at least risers and a diaphragm, and two at least risers are fixed on the same plane of diaphragm, form the power device between per two risers and the diaphragm and hold the chamber, set up on the diaphragm and hold the welding mouth that the chamber communicates with the power device, set up the through-hole that runs through riser and diaphragm on at least one riser.

Description

Power device heat dissipation fixing device

Technical Field

The utility model belongs to the technical field of the mounting and specifically relates to power device mounting.

Background

When the PCB is welded and assembled with the power device, the power device needs to be positioned manually or by a special tool, then the pins of the power device are welded with metal points on the PCB by welding equipment, then the power device is fixed on the PCB by screws, some power devices do not have a structure capable of being in threaded connection with the PCB, the power device can be fixed only by the welding connection of the pins and the PCB, the connection mode is not stable enough, when the PCB is fixed on a moving object, the pins and the welding pins of the PCB still need to support the power device, the welding pins of the PCB and the power device can be welded by heat generated by the work of the power device and vibration generated by the movement of the object, and a circuit is enabled to break down.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a power device heat dissipation fixing device that can fix a position and fix power device is provided.

The utility model provides a technical scheme that its technical problem adopted is: power device heat dissipation fixing device, including the U-shaped board, the U-shaped board comprises two at least risers and a diaphragm, and two at least risers are fixed on the same plane of diaphragm, form the power device between per two risers and the diaphragm and hold the chamber, set up on the diaphragm and hold the welding mouth that the chamber communicates with the power device, set up the through-hole that runs through riser and diaphragm on at least one riser.

Further, a thread is provided on the wall of the through hole.

Further, still include the limiting plate, the limiting plate is fixed and is held the intracavity at power device, and the limiting plate is all perpendicular with riser, diaphragm, and the limiting plate holds the chamber with power device and separates for two cavities.

Furthermore, pin holes penetrating through the limiting plate are uniformly formed in the limiting plate.

Furthermore, heat dissipation holes which are communicated with the power device accommodating cavity and are uniformly distributed are formed in the transverse plate and/or the vertical plate.

Further, the power device comprises rib plates which are uniformly arranged on the surfaces, located in the power device accommodating cavity, of the vertical plates and/or the transverse plates.

The utility model has the advantages that: the utility model comprises a U-shaped plate, the U-shaped plate is composed of at least two risers and a transverse plate, a power device accommodating cavity is formed between every two risers and the transverse plate, a welding port communicated with the power device accommodating cavity is arranged on the transverse plate, a through hole penetrating through the risers and the transverse plate is arranged on at least one riser, before welding and assembling the power device and the PCB, the power device is firstly placed in the power device accommodating cavity, then the U-shaped plate is connected with the PCB by passing a bolt through the through hole, after the bolt is fixedly connected, the transverse plate presses the power device on the PCB, the positioning of the power device can be completed, at the moment, welding equipment is stretched into the welding port to weld pins on the power device and the PCB, after the welding is completed, if the power device needs to be further fixed, the U-shaped plate does not need to be removed, the connection between the U-shaped plate and the PCB is kept, can be so that the U-shaped board plays fixed support's effect to power device, if power device need not to carry out further fixed, demolish the U-shaped board can, if power device only need fix and do not need the welding, then the utility model discloses also can suffice, simple structure is little to power device's cladding area, can make power device have good heat dissipation condition when being fixed, has higher commonality.

Drawings

Fig. 1 is an isometric view of the structure of the present invention;

fig. 2 is a top view of the structure after the power device is fixed on the PCB board by the present invention;

fig. 3 is an axonometric view of the structure after the power device is fixed on the PCB board by the utility model;

parts, positions and numbers in the drawings: the structure comprises a vertical plate 1, a through hole 101, a horizontal plate 2, a rib plate 201, a heat dissipation hole 202, a welding port 203, a limiting plate 3, a pin hole 301, a power device 4, a PCB 5 and a screw 6.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in figure 1, the heat dissipation fixing device for the power device comprises a U-shaped plate, the U-shaped plate is preferably made of insulating nylon materials with high strength, the U-shaped plate is composed of at least two vertical plates 1 and a transverse plate 2, the at least two vertical plates 1 are fixed on the same plane of the transverse plate 2, the U-shaped plate can be formed by injection molding or formed by bonding and welding the vertical plates 1 and the transverse plate 2, a power device accommodating cavity is formed between every two vertical plates 1 and the transverse plate 2, a welding port 203 communicated with the power device accommodating cavity is arranged on the transverse plate 2, a through hole 101 penetrating through the vertical plates 1 and the transverse plate 2 is arranged on at least one vertical plate 1, before welding and assembling the power device 4 and the PCB 5, the power device 4 is firstly placed in the power device accommodating cavity, then a bolt penetrates through the through hole 101 to connect the U-shaped plate with the PCB 5, and after the bolt is, diaphragm 2 compresses tightly power device 4 on PCB board 5, can accomplish the location to power device 4, at this moment, stretch into welding equipment in welding mouth 203, pin and PCB board 5 to on the power device 4 weld, after the welding is accomplished, if need carry out further fixed to power device 4, then need not to demolish the U-shaped board, keep being connected of U-shaped board and PCB board 5, can make the U-shaped board play fixed bearing's effect to power device 4, if power device 4 need not to carry out further fixed, demolish the U-shaped board can, if power device 4 only need fix and need not weld, then need not to demolish the U-shaped board.

In order to facilitate the connection of the U-shaped plate to the PCB 5 by means of the screws 6, threads are provided on the wall of the through-hole 101.

In order to restrict the displacement of power device 4 along 5 surperficial ascending directions of PCB board, the utility model discloses still include limiting plate 3, limiting plate 3 is fixed and is holding the intracavity at power device, and limiting plate 3 is connected with riser 1 and/or diaphragm 2 promptly, and limiting plate 3 can be with the riser aequilate, also can aequilate, and limiting plate 3 is all perpendicular with riser 1, diaphragm 2, and limiting plate 3 holds the chamber partition with power device for two cavities.

In order to facilitate the connection between the limiting plate 3 and the vertical plate 1 with the same width, the pins on the power device 4 are connected with the PCB board 5, and the limiting plate 3 is uniformly provided with pin holes 301 penetrating through the limiting plate 3.

In order to ensure that the power device 4 can radiate heat well, the horizontal plate 2 and/or the vertical plate 1 are/is provided with radiating holes 202 which are communicated with the power device accommodating cavity and are uniformly distributed.

In order to reduce power device 4 and riser 1 and/or the area of contact of diaphragm 2, the area of contact of increase power device 4 and air further guarantees that power device 4 dispels the heat well, the utility model discloses still include floor 201, floor 201 evenly sets up on diaphragm 2 and/or riser 1 and lies in the power device and hold the intracavity on the surface, floor 201 is little with power device 4's surface contact area, and can support power device 4, makes power device 4's surface not laminate with diaphragm 2 and/or riser 1.

Claims

1. Power device heat dissipation fixing device, its characterized in that: including the U-shaped board, the U-shaped board comprises two at least risers (1) and diaphragm (2), and two at least risers (1) are fixed on the same plane of diaphragm (2), forms power device between per two risers (1) and diaphragm (2) and holds the chamber, sets up welding mouth (203) that hold the chamber intercommunication with power device on diaphragm (2), sets up through-hole (101) that run through riser (1) and diaphragm (2) on at least one riser (1).

2. The power device heat sink fixture of claim 1, wherein: a screw thread is provided on the wall of the through hole (101).

3. The power device heat sink fixture of claim 1, wherein: still include limiting plate (3), limiting plate (3) are fixed and are held the intracavity at power device, and limiting plate (3) are all perpendicular with riser (1), diaphragm (2), and limiting plate (3) hold the chamber with power device and separate for two cavities.

4. The power device heat sink fixture of claim 3, wherein: the limiting plate (3) is uniformly provided with pin holes (301) which penetrate through the limiting plate (3).

5. The power device heat dissipation fixture of any of claims 1-4, wherein: the horizontal plate (2) and/or the vertical plate (1) are/is provided with heat dissipation holes (202) which are communicated with the power device accommodating cavity and are uniformly distributed.

6. The power device heat sink fixture of claim 5, wherein: the power device is characterized by further comprising ribbed plates (201), wherein the ribbed plates (201) are uniformly arranged on the surfaces, located in the power device accommodating cavity, of the vertical plates (1) and/or the transverse plates (2).