Display card power supply short circuit protection structure

Abstract

The utility model relates to the field of video card power supplies, and discloses a video card power supply short circuit protection structure which comprises a dust removal mechanism, a fixing mechanism, a shell and a bottom plate, the dust removal mechanism comprises a first brush, a bottom block and a screw rod, and one side, close to the shell, of the first brush is fixedly connected with a plurality of connecting rods; the ends, away from the first brush, of the multiple connecting rods are fixedly connected with a second brush, the first brush is in sliding connection with the outer wall of the shell, the second brush is in sliding connection with the inner wall of the shell, the fixing mechanism comprises multiple clamping blocks and multiple fixing shafts, the outer walls of the multiple fixing shafts are movably sleeved with springs, and the clamping blocks are fixedly connected with the clamping blocks. The multiple fixing shafts are arranged on the inner walls of the front face and the rear face of the bottom plate in a sliding mode, penetrate through the bottom of the shell and are in sliding connection with the inner wall of the shell. According to the utility model, the probability of short circuit of the video card power supply can be reduced through the dust removal mechanism, and the later maintenance of the short-circuited video card is facilitated through the arrangement of the fixing mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of display card power supply, especially to a display card power supply short circuit protection structure. BACKGROUND

[0002] The display card power supply is a device or component that provides power supply for the display card. The main function of the display card power supply is to provide stable and appropriate power supply for the display card to ensure that the display card can work normally and exert its performance. Short circuit of the display card power supply will cause the power supply to heat up, which may cause burning or lead to paralysis of the entire circuit system. Protection of the display card power supply short circuit can prevent the power supply short circuit to the greatest extent and minimize the risk after short circuit.

[0003] The inventor found that the existing power supply short circuit protection structure generally includes a shell, a heat dissipation hole and other structures. When the existing shell has dust accumulated in the heat dissipation hole for a long time, the heat dissipation effect is poor, the temperature inside the shell rises, and short circuit occurs. In addition, the existing shell needs to be opened with a screwdriver or other tools after short circuit, which leads to poor flexibility in the disassembly process and a long disassembly process.

[0004] Therefore, the technical personnel in the art provide a display card power supply short circuit protection structure to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the problems in the prior art and provides a display card power supply short circuit protection structure. The setting of the dust removal mechanism can reduce the probability of short circuit of the display card power supply, and the fixing mechanism can facilitate subsequent maintenance of the short circuit circuit.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a display card power supply short circuit protection structure, which comprises a dust removal mechanism, a fixing mechanism, a shell and a bottom plate. The dust removal mechanism comprises a No. 1 brush, a bottom block and a screw rod. A plurality of connecting rods are fixedly connected to the side of the shell close to the No. 1 brush. A No. 2 brush is fixedly connected to the end of the connecting rod away from the No. 1 brush. The No. 1 brush is in sliding connection with the outer wall of the shell. The No. 2 brush is in sliding connection with the inner wall of the shell.

[0007] The fixing mechanism comprises a plurality of clamping blocks and a plurality of fixed shafts. Springs are movably sleeved on the outer wall of the fixed shafts. The fixed shafts are slidingly arranged on the inner walls of the front and rear of the bottom plate. The fixed shafts penetrate the bottom of the shell and are in sliding connection with the inner wall of the shell.

[0008] Further, the fixed shafts are rotatably connected to the inner wall away from the bottom plate. The outer wall of the clamping shaft is fixedly connected to the inner wall of the clamping block.

[0009] Further, the plurality of springs are fixedly connected to the inner wall of the shell near one end of the plurality of clamping blocks, and the plurality of springs are fixedly connected to the plurality of fixed shafts near the other end of the plurality of clamping blocks.

[0010] Further, the outer wall of the plurality of clamping blocks is slidably connected to the outer wall of the shell, and the outer wall of the bottom plate is slidably connected to the bottom of the inner wall of the shell.

[0011] Further, a sliding block is fixedly connected to the center of the front end face of the first brush, and the inner wall of the sliding block is threadedly connected to the screw rod.

[0012] Further, the screw rod is rotatably arranged on the inner wall of the bottom block, and the outer wall of the bottom block is fixedly arranged on the center of the front end face of the shell.

[0013] Further, a handle is fixedly connected to the outer wall of the screw rod near the top, and the outer wall of the plurality of connecting rods is slidably connected to the outer wall of the shell.

[0014] The utility model has the advantages of the following:

[0015] 1. The utility model discloses a graphics card power supply short-circuit protection structure, when the dust in the ventilation opening of the cleaning shell is cleaned, the handle is rotated to drive the screw rod to rotate, the screw rod is rotated to drive the sliding block to further drive the first brush and a plurality of connecting rods to move downwards, the plurality of connecting rods further drive the second brush to move downwards, and the first brush and the second brush clean the dust by moving downwards on the outer wall and the inner wall of the shell respectively, so that the ventilation opening is kept clean, and the temperature in the shell is kept at a normal temperature.

[0016] 2. The utility model discloses a graphics card power supply short-circuit protection structure, when the bottom plate is disassembled to maintain the circuit in the shell, the clamping block is held and rotated around the arc transition surface close to the shell as the fulcrum, the clamping block drives the clamping shaft to move outward, the clamping shaft drives the fixed shaft to be pulled out from the inside of the bottom plate, when the clamping shaft moves outward, the tail part rotates along the clamping shaft, and the head part extrudes the spring outward, when the right angle surface at the rear end of the arc transition surface of the clamping block is perpendicular to the shell, the overall structure is clamped outside the shell, the remaining three fixed shafts are pulled out from the inside of the bottom plate, then the bottom plate can be disassembled, and the short-circuit part in the shell can be maintained. DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the dust removal mechanism structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the bottom plate structure of the utility model;

[0020] Figure 4The fixed mechanism structure schematic view of the utility model;

[0021] Figure 5 The shell section view schematic view of the utility model;

[0022] Figure 6 The structure schematic view of the utility model's No.

[0023] Figure 7 The utility model discloses a Figure 5 The A place enlarged structure schematic view of the utility model.

[0024] Legend:

[0025] 1, dust removal mechanism, 2, fixed mechanism, 3, shell, 4, bottom plate, 101, No. brush, 102, No. 2 brush, 103, connecting rod, 104, handle, 105, sliding block, 106, bottom block, 107, screw rod, 201, clamping block, 202, fixed shaft, 203, spring, 204, clamping shaft. Specific implementation

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0027] Referring to Figures 1-7 The utility model provides an embodiment: a kind of graphic card power short circuit protection structure, including dust removal mechanism 1, fixed mechanism 2, shell 3, bottom plate 4, dust removal mechanism 1 includes No. brush 101, bottom block 106, screw rod 107, No. brush 101 is close to the side fixed connection of shell 3 with multiple connecting rods 103, multiple connecting rods 103 are fixedly connected with No. 2 brush 102 away from No. brush 101 one end, No. brush 101 and shell 3 outer wall are slidingly connected, No. 2 brush 102 and shell 3 inner wall are slidingly connected, fixed mechanism 2 includes multiple clamping blocks 201, multiple fixed shafts 202, multiple fixed shafts 202 outer wall movably sleeve joint has spring 203, multiple fixed shafts 202 slidingly set in the front and rear inner walls of bottom plate 4, multiple fixed shafts 202 pass through shell 3 bottom, and with shell 3 inner wall is slidingly connected.

[0028] Specifically, by ensuring the cleanliness of the vent of the shell 3, the heat dissipation effect can be ensured to prevent the internal temperature of the shell 3 from being too high to cause a short circuit. The handle 104 is rotated to drive the screw rod 107 to rotate, and the screw rod 107 drives the sliding block 105 to move downward with the first brush 101 and the plurality of connecting rods 103. The plurality of connecting rods 103 drive the second brush 102 to move downward. The first brush 101 and the second brush 102 clean the dust along the outer wall and the inner wall of the shell 3, respectively. When the bottom plate 4 is disassembled to maintain the internal circuit of the shell 3, the clamping block 201 is rotated to the right with the arc transition surface of the clamping block 201 as the fulcrum. The clamping block 201 drives the clamping shaft 204 and the fixed shaft 202 to move outward to slide the fixed shaft 202 out of the inside of the bottom plate 4. When the clamping shaft 204 moves outward, the tail portion rotates along the outer wall of the clamping shaft 204, and the head portion extrudes the spring 203 outward. Until the clamping block 201 is completely turned over, the right angle surface at the rear end of the arc transition surface is perpendicular to the shell 3 to fix the overall structure. The remaining three are the same. Then the bottom plate 4 can be disassembled and maintained for the internal short circuit part.

[0029] Referring to Figures 1-7 , the plurality of fixed shafts 202 are rotatably connected to the inner wall of the bottom plate 4 away from the plurality of clamping shafts 204. The outer wall of the plurality of clamping shafts 204 is fixedly connected to the inner wall of the plurality of clamping blocks 201. The plurality of springs 203 are fixedly connected to the inner wall of the shell 3 near one end of the plurality of clamping blocks 201. The plurality of springs 203 are fixedly connected to the plurality of fixed shafts 202 near the bottom plate 4. The outer wall of the plurality of clamping blocks 201 is slidably connected to the outer wall of the shell 3. The outer wall of the bottom plate 4 is slidably connected to the inner bottom of the shell 3. The front end surface of the first brush 101 is fixedly connected to the center of the sliding block 105. The inner wall of the sliding block 105 is threadedly connected to the screw rod 107. The bottom of the screw rod 107 is rotatably arranged in the inner wall of the bottom block 106. The rear end surface of the bottom block 106 is fixedly arranged on the outer wall of the center of the front end surface of the shell 3. The outer wall of the screw rod 107 near the top is fixedly connected to the handle 104. The outer wall of the plurality of connecting rods 103 is slidably connected to the outer wall of the shell 3.

[0030] Specifically, when the bottom plate 4 is reinstalled, the fixed clamping block 201 is reset. Under the pushing of the spring 203, the head of the fixed shaft 202 is pushed into the inside of the bottom plate 4 to fix the bottom plate 4. When the sliding block 105 drives the first brush 101, the second brush 102, and the plurality of connecting rods 103 to move, the first brush 101 and the second brush 102 are limited by the shell 3 and cannot rotate. The handle 104 makes the rotation of the screw rod 107 more convenient.

[0031] Working principle: when dust accumulation on the vent of the shell 3 affects heat dissipation, rotating the handle 104 drives the screw rod 107 at the bottom to rotate, the screw rod 107 drives the sliding block 105 threaded with the outer wall to drive the No. 1 brush 101 at the rear end surface to move downward, the No. 1 brush 101 drives the plurality of connecting rods 103 to move downward, the plurality of connecting rods 103 drive the No. 2 brush 102 to move downward, the No. 1 brush 101 and the No. 2 brush 102 respectively move downward along the outer wall and the inner wall of the shell 3 to clean dust;

[0032] Secondly, when the bottom plate 4 needs to be disassembled for maintenance of the internal circuit of the shell 3, the clamping block 201 can be gripped to rotate to the right with the circular arc transition surface of the clamping block 201 as the fulcrum, the clamping block 201 drives the clamping shaft 204 on the inner wall to move outward, at the same time, the clamping shaft 204 drives the fixed shaft 202 on the outer wall to slide out from the inside of the bottom plate 4, when the clamping shaft 204 moves outward, the tail part rotates along the clamping shaft 204, and the head part extrudes the spring 203 outward, until the right angle surface at the rear end of the circular arc transition surface of the clamping block 201 is perpendicular to the shell 3 to fix the overall structure, the other three are the same, then the bottom plate 4 can be disassembled.

[0033] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A graphics card power supply short circuit protection structure, comprising an ash removal mechanism (1), a fixing mechanism (2), a shell (3), and a bottom plate (4), characterized in that: The ash removing mechanism (1) includes a brush (101), a bottom block (106), a screw rod (107), the brush (101) is fixedly connected with a plurality of connecting rods (103) close to one side of the shell (3), a plurality of connecting rods (103) are fixedly connected with a brush (102) away from one end of the brush (101), the brush (101) and the outer wall of the shell (3) are in sliding connection, the brush (102) and the inner wall of the shell (3) are in sliding connection; The fixing mechanism (2) includes a plurality of clamping blocks (201), a plurality of fixed shafts (202), a plurality of spring (203) is movably sleeved on the outer wall of the fixed shaft (202), a plurality of fixed shafts (202) are slidably arranged on the inner wall of the front and rear of the bottom plate (4), a plurality of fixed shafts (202) penetrate the bottom of the shell (3) and are in sliding connection with the inner wall of the shell (3).

2. The short circuit protection structure for a power supply of a graphic card according to claim 1, wherein: A plurality of clamping shafts (204) are rotatably connected to the inner wall of the bottom plate (4) away from the plurality of fixed shafts (202), and the outer wall of the plurality of clamping shafts (204) is fixedly connected with the inner wall of the plurality of clamping blocks (201).

3. The short circuit protection structure for a power supply of a graphic card according to claim 1, wherein: A plurality of springs (203) are fixedly connected with the inner wall of the shell (3) close to one end of the plurality of clamping blocks (201), and the plurality of springs (203) are fixedly connected with the plurality of fixed shafts (202) close to the bottom plate (4) close to one end of the plurality of fixed shafts (202).

4. The short circuit protection structure for a power supply of a graphic card according to claim 1, wherein: The outer wall of the plurality of clamping blocks (201) and the outer wall of the shell (3) are in sliding connection, and the outer wall of the bottom plate (4) and the bottom of the inner wall of the shell (3) are in sliding connection.

5. The short circuit protection structure for a power supply of a graphic card according to claim 1, wherein: The front end surface of the brush (101) is fixedly connected with a sliding block (105), and the inner wall of the sliding block (105) is in threaded connection with the screw rod (107).

6. The structure for protecting a graphic card power supply from short circuit according to claim 5, wherein: The screw rod (107) is rotatably arranged on the inner wall of the bottom block (106), and the bottom block (106) is fixedly arranged on the outer wall of the center of the front end surface of the shell (3).

7. The short circuit protection structure for a power supply of a graphic card according to claim 1, wherein: The outer wall of the screw rod (107) is fixedly connected with a handle (104) close to the top, and the outer wall of the plurality of connecting rods (103) is in sliding connection with the outer wall of the shell (3).

Images