CN218825460U

CN218825460U - Insect-proof power supply device

Info

Publication number: CN218825460U
Application number: CN202223224348.8U
Authority: CN
Inventors: 陈国庆; 卢剑超; 符张发
Original assignee: Guangzhou Hedy Computer Co ltd
Current assignee: Guangzhou Hedy Computer Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-07
Anticipated expiration: 2032-12-01

Abstract

The utility model provides a power supply device capable of preventing insects, which relates to the technical field of power supply devices and aims to solve the problem that when the current computer power supply device is used, insects easily enter the computer power supply device and easily cause short circuit faults to a PCBA circuit board because the computer power supply device is positioned at the lower part of a host machine and is close to the ground or a table top; the inner side of the shell is connected with a PCBA circuit board through four fastening screws, and the four fastening screws respectively penetrate through four corners of the PCBA circuit board in a sliding mode; a heat-conducting protective silica gel sheet is bonded on the bottom end face of the PCBA circuit board; through heat conduction protection silica gel piece and radiating component's cooperation, can be in the use, even the worm enters into the casing inboard through the ventilation mesh who sets up on the casing, under the guard action of heat conduction protection silica gel piece for the worm can not contact with PCBA circuit board bottom circuit board tin foot, thereby has avoided causing the problem of short circuit fault for the PCBA circuit board.

Description

Insect-proof power supply device

Technical Field

The utility model belongs to the technical field of power supply unit, more specifically say, in particular to but power supply unit of protection against insects.

Background

The computer power supply device is a closed independent component mounted in the main machine box, and is used for converting alternating current into stable and reliable direct current with different voltages, and supplying the direct current to system components of system board, various adapters and expansion cards, hard disk drive, optical disk drive, etc. in the main machine box, keyboard and mouse.

When the computer power supply device is used, the computer power supply device is located at the lower part of the host machine and is close to the ground or the table board, and the aperture of the ventilation net is large, so that the opportunity of entering the bug is increased, the bug climbs to the tin foot position at the bottom of the PCBA circuit board once entering the computer power supply device, short circuit faults can be caused to the PCBA circuit board, the service life of the PCBA circuit board in the computer power supply device is shortened, although a rubber pad is additionally arranged at the tin foot position at the bottom of the PCBA circuit board on the current part of the computer power supply device, the rubber pad is coated outside the tin foot at the bottom of the PCBA circuit board, heat generated at the bottom of the PCBA circuit board cannot be effectively cooled, and the practicability of the rubber pad insect prevention structure is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a but power supply unit of protection against insects to solve present computer power supply unit when using, because computer power supply unit is in the lower part position on the host computer, be close ground or mesa, make the worm enter into computer power supply unit easily inside, cause short-circuit fault's problem for the PCBA circuit board easily.

The utility model relates to a but power supply unit's of protection against insects purpose and efficiency are reached by following concrete technological means:

an insect-repellent power supply device includes a housing; the inner side of the shell is connected with a PCBA circuit board through four fastening screws, and the four fastening screws respectively penetrate through four corners of the PCBA circuit board in a sliding mode; the PCBA circuit board bottom end face bonds has heat conduction protection silica gel piece, and heat conduction protection silica gel piece bottom end face is equipped with radiator unit.

Furthermore, four threaded cylinders are fixedly connected to the bottom end face of the inner side of the shell, and a polytetrafluoroethylene sleeve is sleeved outside each threaded cylinder.

Further, when the PCBA circuit board is installed on the inner side of the shell, the four fastening screws are respectively in threaded connection with the four threaded cylinders.

Furthermore, PCBA circuit board bottom end face welding has the circuit board tin foot, and the circuit board tin foot is located heat conduction protection silica gel piece inboard.

Further, the radiating component comprises a heat conducting plate and radiating fins, the heat conducting plate is fixedly connected to the bottom end face of the heat conducting protective silica gel sheet, and the radiating fins are uniformly arranged on the bottom end face of the heat conducting plate.

Further, the height of the thread cylinder is equal to that of the polytetrafluoroethylene sleeve.

Further, when the PCBA circuit board is installed on the inner side of the shell, the lower side of the radiating fin is two centimeters to three centimeters away from the bottom end face of the inner portion of the shell.

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

1. through the matching of the heat-conducting protective silica gel sheet and the heat dissipation assembly, even if insects enter the inner side of the shell through the ventilation meshes arranged on the shell in the use process, the insects cannot contact tin feet of a circuit board at the bottom of the PCBA circuit board under the protection effect of the heat-conducting protective silica gel sheet, so that the problem of short-circuit fault of the PCBA circuit board is avoided, and the service life of the PCBA circuit board in the computer power supply device is prolonged; and under the heat conduction effect of heat conduction protection silica gel piece, on heat transfer to heat-conducting plate and the radiator fin with PCBA circuit board bottom production, then the radiator fan of cooperation mainframe box to the heat that can make PCBA circuit board bottom produce obtains effectively cooling, thereby improves the practicality of this power supply unit last protection against insects structure.

2. Through all having cup jointed a polytetrafluoroethylene cover in every screw thread section of thick bamboo outside, because polytetrafluoroethylene cover surface has less coefficient of friction to make the worm be difficult to upwards climb to PCBA circuit board bottom end face through the polytetrafluoroethylene cover on, thereby further avoided the worm to climb to the phenomenon of PCBA circuit board bottom.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic structural diagram of the present invention in a disassembled state.

Figure 3 is the utility model discloses a structural schematic behind PCBA circuit board, heat conduction silica gel piece and the radiator unit split.

Fig. 4 is the utility model discloses a heat conduction protection silica gel piece possesses the sectional structure schematic diagram.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a housing; 101. a threaded barrel; 102. a polytetrafluoroethylene sleeve; 2. a PCBA circuit board; 201. tin pins of the circuit board; 3. a heat-conducting protective silica gel sheet; 4. a heat dissipating component; 401. a heat conducting plate; 402. a heat sink; 5. and (5) fastening the screw.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples.

Example (b):

as shown in figures 1 to 4:

the utility model provides a power supply device capable of preventing insects, which comprises a shell 1; the inner side of the shell 1 is connected with a PCBA circuit board 2 through four fastening screws 5, and the four fastening screws 5 respectively penetrate through four corners of the PCBA circuit board 2 in a sliding mode; a heat-conducting protective silica gel sheet 3 is bonded on the bottom end face of the PCBA circuit board 2, and a heat-radiating component 4 is arranged on the bottom end face of the heat-conducting protective silica gel sheet 3; the bottom end face of the inner side of the shell 1 is fixedly connected with four threaded cylinders 101 which are used for being in threaded connection with four fastening screws 5, and a polytetrafluoroethylene sleeve 102 is sleeved outside each threaded cylinder 101; the height of a screw thread section of thick bamboo 101 equals with polytetrafluoroethylene cover 102, through polytetrafluoroethylene cover 102's setting, because polytetrafluoroethylene cover 102 surface has less coefficient of friction, has good chemical stability, corrosion resistance, leakproofness, high lubrication inadhesion nature, electrically insulating nature and good ageing resistance endurance to make the worm difficult to climb upwards to PCBA circuit board 2 bottom end face through polytetrafluoroethylene cover 102.

Referring to fig. 1 to 3, when the PCBA circuit board 2 is mounted inside the housing 1, four fastening screws 5 are screwed with four threaded cylinders 101, respectively; the bottom end face welding of PCBA circuit board 2 has circuit board tin foot 201, and circuit board tin foot 201 is located heat conduction protection silica gel piece 3 inboardly to make circuit board tin foot 201 can obtain effectual guard action.

Referring to fig. 3 and 4, the heat dissipation assembly 4 comprises a heat conduction plate 401 and heat dissipation fins 402, the heat conduction plate 401 is fixedly connected to the bottom end face of the heat conduction protective silica gel sheet 3, the heat dissipation fins 402 are uniformly arranged on the bottom end face of the heat conduction plate 401, and the heat generated at the bottom of the PCBA circuit board 2 can be effectively cooled through the cooperation of the heat dissipation assembly 4 and the heat conduction protective silica gel sheet 3, so that the practicability of the insect prevention structure on the power supply device is improved;

when the PCBA circuit board 2 is mounted on the inner side of the shell 1, the lower side of the radiating fin 402 is two centimeters to three centimeters away from the bottom end face of the inner part of the shell 1, so that the contact phenomenon between the lower side of the radiating fin 402 and the bottom end face of the inner part of the shell 1 is avoided, and the radiating effect of the radiating fin 402 is improved.

The specific use mode and function of the embodiment are as follows:

in the utility model, during installation, the heat-conducting protective silica gel sheet 3 is firstly bonded to the bottom end face of the PCBA circuit board 2, the tin feet 201 of the circuit board are wrapped by the heat-conducting protective silica gel sheet 3, then the heat-radiating component 4 is fixed to the bottom end face of the heat-conducting protective silica gel sheet 3, and finally the PCBA circuit board 2 is connected to the inner side of the shell 1 through the fastening screw 5;

in the using process, even if insects enter the inner side of the shell 1 through the ventilation meshes arranged on the shell 1, the insects cannot contact with the tin feet 201 of the circuit board at the bottom of the PCBA circuit board 2 under the protection action of the heat conduction protection silica gel sheet 3, so that the problem of short-circuit fault caused to the PCBA circuit board 2 is avoided;

and under the heat conduction effect of heat conduction protection silica gel piece 3, with the heat transfer of 2 bottoms production of PCBA circuit boards to heat-conducting plate 401 and fin 402 on, then the radiator fan of cooperation mainframe box to the heat that can make 2 bottoms production of PCBA circuit boards is effectively cooled down, thereby improves the practicality of the last protection against insects structure of this power supply unit.

Claims

1. An insect-repellent power supply device, comprising: a housing (1); the inner side of the shell (1) is connected with the PCBA circuit board (2) through four fastening screws (5), and the four fastening screws (5) respectively penetrate through four corners of the PCBA circuit board (2) in a sliding mode; the bottom end face of the PCBA circuit board (2) is bonded with a heat conduction protective silica gel sheet (3), and the bottom end face of the heat conduction protective silica gel sheet (3) is provided with a heat dissipation assembly (4).

2. An insect-repellent power supply device as claimed in claim 1, wherein: the bottom end face of the inner side of the shell (1) is fixedly connected with four threaded cylinders (101), and a polytetrafluoroethylene sleeve (102) is sleeved outside each threaded cylinder (101).

3. An insect-resistant power supply device as claimed in claim 2, wherein: when the PCBA circuit board (2) is installed on the inner side of the shell (1), the four fastening screws (5) are in threaded connection with the four threaded cylinders (101) respectively.

4. An insect-resistant power supply device as claimed in claim 1, wherein: PCBA circuit board (2) bottom face welding has circuit board tin foot (201), and circuit board tin foot (201) are located heat conduction protection silica gel piece (3) inboard.

5. An insect-resistant power supply device as claimed in claim 1, wherein: the heat dissipation assembly (4) comprises a heat conduction plate (401) and heat dissipation fins (402), the heat conduction plate (401) is fixedly connected to the bottom end face of the heat conduction protective silica gel sheet (3), and the heat conduction plate (401) is uniformly provided with the heat dissipation fins (402) at the bottom end face.

6. An insect-repellent power supply device as claimed in claim 2, wherein: the height of the threaded cylinder (101) is equal to that of the polytetrafluoroethylene sleeve (102).

7. An insect-resistant power supply device as claimed in claim 5, wherein: when the PCBA circuit board (2) is installed on the inner side of the shell (1), the lower side of the radiating fin (402) is two centimeters to three centimeters away from the bottom end face in the shell (1).