Computer power supply housing with circuit board insect barrier

By designing an insect-proof frame for the circuit board inside the computer power supply casing, and using baffles and screw holes to form a closed structure, the problem of short circuits caused by insects entering the circuit board is solved, thus improving the safety and stability of the power supply casing.

CN224595085UActive Publication Date: 2026-08-04DONGGUAN FUHUA METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN FUHUA METAL PROD CO LTD
Filing Date
2025-06-09
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Insects can easily enter through the ventilation holes in the computer power supply casing, causing short circuits on the power circuit board and affecting the stability and reliability of the device.

Method used

Design a circuit board insect-proof frame, including multi-faceted baffles that enclose the gap between the power circuit board and the lower housing, and are fixed by screw holes. The baffles are provided with mounting holes and fit onto the screw holes to form a closed structure to prevent insects from contacting the circuit board solder joints.

Benefits of technology

It effectively prevents insects from entering the circuit board, prevents short circuits, improves the safety and reliability of the power supply casing, and ensures that the circuit board is installed firmly and not easily loosened.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a computer power supply casing with circuit board insect prevention frame, it includes upper casing, lower casing and circuit board insect prevention frame. Lower casing and upper casing butt joint and close to accommodate power supply circuit board in upper and lower, be provided with a plurality of upwardly extending screw hole post on lower casing, be provided with corresponding multiple screw hole on power supply circuit board, to be attached on multiple screw hole post through screw, circuit board insect prevention frame includes multi -sided baffle, and multi -sided baffle mutually head -to -tail to enclose power supply circuit board, close the gap between power supply circuit board and lower casing, thereby can prevent insects from the gap and contact the bottom pad of power supply circuit board, prevent the short circuit of power supply circuit board, improve security. The mounting hole is set up between every two adjacent baffle, is used for setting on each corresponding screw hole post, to install circuit board insect prevention frame on lower casing, and the periphery installation of every baffle corresponds power supply circuit board, easily adapts power supply circuit board.
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Description

Technical Field

[0001] This utility model relates to the field of computer power supply technology, and in particular to a computer power supply housing with a circuit board insect-proof frame. Background Technology

[0002] A computer power supply is a device that provides stable and reliable power to various components of a computer host, such as the motherboard, drives, and graphics card. The power supply circuit board is housed inside the computer power supply casing and is protected. It is usually locked to the computer power supply casing with screws to maintain stability. In addition, the power supply circuit board needs to maintain a certain distance from the computer power supply casing to prevent the solder points on the bottom of the power supply circuit board from contacting the computer power supply casing, which is usually made of metal, thereby preventing short circuits.

[0003] Because computer power supplies require cooling fans and corresponding ventilation holes to dissipate heat from the power circuit board and various electrical components, and these ventilation holes are relatively wide to ensure adequate ventilation, insects can frequently enter the computer power supply casing through these holes. When insects crawl between the solder points on the bottom of the power circuit board, they can easily trigger short circuits, causing damage. Such malfunctions are not uncommon in computer power supply use, so it is necessary to improve the existing computer power supply casing to solve this problem. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a computer power supply housing with a circuit board insect-proof frame to solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a computer power supply housing with a circuit board insect-proof frame, which includes an upper housing, a lower housing, and a circuit board insect-proof frame.

[0007] The lower housing and the upper housing are joined together to form an internal space for accommodating the power circuit board. The lower housing has multiple upward-extending screw posts, and the power circuit board has multiple corresponding screw holes for screwing onto the screw posts. The circuit board insect-proof frame includes multiple baffles that are connected end to end to surround the power circuit board and close the gap between the power circuit board and the lower housing. There is a mounting hole between every two adjacent baffles for fitting onto the corresponding screw posts to install the circuit board insect-proof frame onto the lower housing.

[0008] Preferably, the insect-proof frame of the circuit board is a polysulfone plastic frame.

[0009] Preferably, the number of baffles is four, and the four baffles enclose a rectangular space. The power circuit board has four screw holes, which are respectively opened at the four corners of the power circuit board.

[0010] Preferably, a cubic mounting block is formed at the inner corner between adjacent baffles, the mounting hole is opened on the mounting block, and the corner of the power circuit board is stacked on the mounting block.

[0011] Preferably, in the upward extension direction of the screw hole post, the height of the baffle and the height of the mounting block are both equal to the height of the screw hole post.

[0012] Preferably, the baffle has multiple toothed insect-proof holes, which are arranged at intervals along the length of the baffle.

[0013] Preferably, the lower housing includes a housing base plate and housing side plates respectively attached to the left and right sides of the housing base plate, and the screw hole post is located on the housing base plate and extends away from the housing base plate.

[0014] The technical effects achieved by this utility model include:

[0015] The computer power supply housing provided by this utility model supports and locks the power circuit board based on the screw holes on the lower housing. Multi-faceted baffles are set at the positions of the screw holes on the lower housing. The multi-faceted baffles are connected end to end to form an insect-proof frame for the power circuit board, which surrounds the power circuit board and seals the gap between the power circuit board and the lower housing. This can prevent insects from entering through the gap and contacting the bottom solder joints of the power circuit board, thus preventing short circuits caused by insects, protecting the power circuit board, and improving the safety and reliability of the computer power supply housing.

[0016] Furthermore, by setting mounting holes between every two adjacent baffles, and fitting them onto the corresponding screw posts, the circuit board insect-proof frame is installed on the lower housing. That is, each baffle is connected to two screw posts, and the screw posts correspond to the outer perimeter of the power circuit board. The circuit board insect-proof frame is easy to adapt to the shape and distribution of the power circuit board. When the power circuit board is installed onto the screw posts with screws, the corners of the power circuit board are stacked on the mounting block, making the circuit board insect-proof frame installed firmly and preventing the circuit board insect-proof frame from moving due to vibrations during the operation of the computer power supply housing, thus avoiding gaps between the circuit board insect-proof frame and the lower housing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the computer power supply housing with a circuit board insect-proof frame provided by this utility model.

[0018] Figure 2 This is a structural exploded view of the computer power supply casing;

[0019] Figure 3 This is a schematic diagram showing the circuit board insect-proof frame in the computer power supply housing installed on the lower housing.

[0020] Figure 4 This is a schematic diagram showing the power circuit board being locked onto the screw hole post.

[0021] Figure 5 This is a structural diagram of one embodiment of the insect-proof frame for the circuit board.

[0022] The reference numerals in the above figures are as follows:

[0023] Upper shell 1;

[0024] Lower shell 2, shell bottom plate 2a, shell side plate 2b, screw hole post 21;

[0025] Circuit board insect-proof frame 3, mounting hole 30, baffle 31, toothed insect-proof hole 310, mounting block 32;

[0026] Power circuit board 100, screw hole 101. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0028] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related are omitted.

[0029] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a computer power supply housing with a circuit board insect-proof frame 3, which includes: an upper housing 1, a lower housing 2, and a circuit board insect-proof frame 3.

[0030] The lower housing 2 and the upper housing 1 are connected vertically to form an internal accommodating space for accommodating the power circuit board 100. The lower housing 2 is provided with a plurality of upwardly extending screw hole posts 21. The screw hole post 21 is a column structure with a threaded hole in the middle. The power circuit board 100 is provided with a plurality of corresponding screw holes 101 so as to be fastened to the plurality of screw hole posts 21 by screws.

[0031] The circuit board insect-proof frame 3 includes multi-faceted baffles 31, which are connected end-to-end to surround the power circuit board 100, sealing the gap between the power circuit board 100 and the lower housing 2. Figure 2 and Figure 3 As shown, an installation hole 30 is provided between every two adjacent baffles 31 for fitting onto the corresponding screw post 21 to install the circuit board insect-proof frame 3 onto the lower housing 2.

[0032] The aforementioned computer power supply casing supports and locks the power circuit board 100 through the screw holes 21 on the lower casing 2, creating a gap between the power circuit board 100 and the lower casing 2. This ensures that the bottom solder joints of the power circuit board 100 do not contact the lower casing 2. Furthermore, a baffle 31 is set at the corresponding position of the screw holes 21 on the lower casing 2 to form an insect-proof frame 3 for the circuit board, thereby enclosing and sealing the gap between the power circuit board 100 and the lower casing 2. This prevents insects from entering through the gap and contacting the bottom solder joints of the power circuit board 100, thus preventing a short circuit in the power circuit board 100 and protecting the power circuit board 100.

[0033] Although the circuit board insect-proof frame 3 is arranged along each screw hole post 21 and located on the outer periphery of the power circuit board 100, only the mounting holes 30 between adjacent baffles 31 contact the screw holes 101 of the power circuit board 100. Since no solder joints are located near the screw holes 101, and generally do not affect the solder joints of the power circuit board 100, in order to further improve the safety of the circuit board insect-proof frame 3, in this embodiment, the circuit board insect-proof frame 3 is an insulating frame. Exemplarily, the circuit board insect-proof frame 3 is a polysulfone plastic frame, which has excellent insulation, heat resistance, oxidation resistance, and radiation resistance, and is suitable for contacting the power circuit board 100.

[0034] The mounting holes 30 of the screw post 21 and the circuit board insect-proof frame 3 need to be designed to match the position of the screw holes 101 of the power circuit board 100. In this embodiment, the power circuit board 100 is usually set as a rectangle. The number of baffles 31 is four. The four baffles 31 enclose a rectangular space to make room for the bottom structure of the power circuit board 100. There are four screw holes 101 of the power circuit board 100, which are respectively opened at the four corners of the power circuit board 100 to ensure that the circuit board insect-proof frame 3 is compatible with the power circuit board 100.

[0035] Furthermore, a cubic mounting block 32 is formed at the inner corner between adjacent baffles 31, and the mounting hole 30 is formed on the mounting block 32. The corner of the power circuit board 100 is stacked on the mounting block 32. Figure 2 and Figure 3As shown, align the mounting hole 30 on the mounting block 32 with the screw hole 21 on the lower housing 2 and insert it. The mounting block 32 is then fitted over the screw hole 21, fixing the circuit board insect-proof frame 3 onto the lower housing 2, exposing the threaded hole at the top of the screw hole 21. Then refer to... Figure 4 As shown, the power circuit board 100 is locked to each screw hole post 21 with screws, thereby covering the space enclosed by the baffle 31 and sealing the bottom solder joints of the power circuit board 100.

[0036] The structure and position of the circuit board insect-proof frame 3 are designed according to the power circuit board 100. The baffle 31 must be no lower than the height of the screw hole post 21, that is, the gap height between the power circuit board 100 and the lower housing 2. In the upward extension direction of the screw hole post 21, the height of the baffle 31 and the height of the mounting block 32 are equal to the height of the screw hole post 21. This will not affect the installation of the power circuit board 100, and will ensure that the circuit board insect-proof frame 3 is installed and fixed and seals the gap between the power circuit board 100 and the lower housing 2.

[0037] With the cooling fan installed inside the computer power supply casing, the completely sealed gap of the general circuit board insect-proof frame 3 will not affect the heat dissipation of the power supply circuit board 100. Figure 5 As shown, as one embodiment of the baffle 31, the baffle 31 is provided with a plurality of toothed insect-proof holes 310. The plurality of toothed insect-proof holes 310 are arranged at intervals along the length direction of the baffle 31. The diameter of the toothed insect-proof holes 310 is controlled to be smaller than the diameter of the heat dissipation and ventilation holes opened on the upper shell 1 and the lower shell 2, so as to prevent insects from passing through the toothed insect-proof holes 310 while allowing the circuit board insect-proof frame 3 to open for ventilation and heat dissipation.

[0038] Specifically, the lower housing 2 includes a housing base plate 2a and housing side plates 2b respectively attached to the left and right sides of the housing base plate 2a, and the screw hole post 21 is located on the housing base plate 2a and extends away from the housing base plate 2a.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A computer power supply casing with a circuit board insect-proof frame, characterized in that, include: Upper shell (1); The lower housing (2) and the upper housing (1) are connected and closed to form an internal accommodating space for accommodating the power circuit board (100). The lower housing (2) is provided with a plurality of upwardly extending screw holes (21), and the power circuit board (100) is provided with a plurality of corresponding screw holes (101) so as to be fastened to the plurality of screw holes (21) by screws. The circuit board insect-proof frame (3) includes multiple baffles (31), which are connected end to end to surround the power circuit board (100) and close the gap between the power circuit board (100) and the lower housing (2). A mounting hole (30) is provided between every two adjacent baffles (31) for fitting onto the corresponding screw post (21) to install the circuit board insect-proof frame (3) onto the lower housing (2). The baffle (31) has multiple toothed insect-proof holes (310) arranged at intervals along the length of the baffle (31). The diameter of the toothed insect-proof holes (310) is smaller than the diameter of the heat dissipation and ventilation holes opened on the upper shell (1) and the lower shell (2).

2. The computer power supply case having a circuit board insect prevention frame according to claim 1, wherein, The circuit board insect-proof frame (3) is a polysulfone plastic frame.

3. The computer power supply case having a circuit board insect prevention frame according to claim 1, wherein, The number of baffles (31) is four, and the four baffles (31) enclose a rectangular space. The power circuit board (100) has four screw holes (101), which are respectively opened at the four corners of the power circuit board (100).

4. The computer power supply case having a circuit board insect prevention frame according to claim 3, characterized in that, A cubic mounting block (32) is formed at the inner corner between adjacent baffles (31), and the mounting hole (30) is opened on the mounting block (32). The corner of the power circuit board (100) is stacked on the mounting block (32).

5. The computer power supply case having a circuit board insect prevention frame according to claim 1, wherein, In the upward extension direction of the screw post (21), the height of the baffle (31) and the height of the mounting block (32) are equal to the height of the screw post (21).

6. The computer power supply case having a circuit board insect prevention frame according to claim 1, wherein, The lower housing (2) includes a housing base plate (2a) and housing side plates (2b) respectively attached to the left and right sides of the housing base plate (2a). The screw hole post (21) is located on the housing base plate (2a) and extends away from the housing base plate (2a).