Automatic cooling device for graphics card

Abstract

The invention discloses an automatic cooling device for a graphics card, and relates to the technical field of graphics card processing. Comprising a display card body, an external support is installed on the top of the display card body, a driving part and a water-cooling circulation part are arranged on the external support, the driving part is arranged on the side wall of the external support, the water-cooling circulation part is fixedly connected to the top of the external support, and the water-cooling circulation part makes contact with a shell of the display card body. And the driving piece is in sliding fit with the water-cooling circulating piece. The first one-way valve is firstly opened to enable water cooling liquid in the water cooling box to enter the connecting pipe, then the first one-way valve is closed to enable the second one-way valve to be opened when the plunger moves and resets, the water cooling liquid in the connecting pipe is discharged into the water cooling pipeline, the water cooling pipeline makes contact with a shell of the display card body, and therefore the display card can be cooled; through the arrangement, the cooling operation on the display card can be effectively processed when the display card is heated.

Description

Technical Field

[0001] The invention relates to the technical field of graphics card processing, in particular to an automatic cooling device for a graphics card. Background Art

[0002] The graphics card is one of the basic components of a personal computer. It converts the display information required by the computer system to drive the monitor and provides progressive or interlaced scanning signals to the monitor to control the correct display of the monitor. It is an important component that connects the monitor and the personal computer motherboard. It is one of the important "human-computer" devices. Its built-in parallel computing capabilities are currently also used for deep learning and other operations.

[0003] The existing patent (Announcement No.: CN212569695U) discloses a graphics card cooling device, including a graphics card body, a mounting plate installed on the top of the graphics card body, both ends of the mounting plate are connected with first bolts through threads, a heat conducting plate is installed between the mounting plate and the graphics card body, a heat dissipation fin is installed on the top of the heat conducting plate, the heat dissipation fin passes through the mounting plate, a heat dissipation net and a heat dissipation tank are fixed on the top of the mounting plate, a micro pump is fixed on the side of the heat dissipation tank, and a liquid outlet pipe is installed between the micro pump and the heat dissipation net. The utility model is convenient for use with graphics card bodies of different specifications by setting a telescopic mechanism between the first bracket and the second bracket, thereby improving the flexibility of use; by combining the use of cooling oil and flowing wind, the graphics card body can be effectively cooled, and the flowing wind can cool the cooling oil, and the heat dissipation effect is very obvious when the graphics card body is used at high intensity.

[0004] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved: the existing graphics cards will generate a lot of heat during operation, and the heat will affect the use of the graphics card. The heat is generally generated because the fan of the graphics card has poor heat dissipation effect. There is a lot of dust and impurities attached to the surface of the fan, which cannot be cleaned in a timely and effective manner, causing the heat dissipation effect of the fan to gradually decrease, affecting the use of the graphics card. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic cooling device for a graphics card to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: an automatic cooling device for a graphics card, comprising a graphics card body, a peripheral bracket is installed on the top of the graphics card body, a driving member and a water cooling circulation member are arranged on the peripheral bracket, the driving member is arranged on the side wall of the peripheral bracket, the water cooling circulation member is fixedly connected to the top of the peripheral bracket, and the water cooling circulation member is in contact with the shell of the graphics card body, and the driving member and the water cooling circulation member are slidably matched.

[0006] The present invention first opens the first one-way valve to allow the water-cooling liquid in the water-cooling box to enter the connecting pipe, and then closes the first one-way valve when the plunger moves to reset to allow the second one-way valve to open, and the water-cooling liquid in the connecting pipe is discharged into the water-cooling pipe. The water-cooling pipe contacts the shell of the graphics card body, so that the graphics card can be cooled. This arrangement can effectively handle the cooling operation of the graphics card when the graphics card is hot.

[0007] Preferably, the driving member includes a driving motor fixedly connected to the top of the external bracket, the main shaft of the driving motor is rotatably matched with the external bracket, the main shaft of the driving motor is transmission-connected to a driving block, one end of the driving block away from the main shaft of the driving motor is fixedly connected to a limiting rod, the bottom of the external bracket is fixedly connected to a fixing rod, a swing frame is rotatably provided on the fixing rod, a limiting slot is provided on the swing frame, and the limiting rod on the driving block is located in the limiting slot on the swing frame.

[0008] Preferably, the water cooling circulation component includes a water cooling box fixedly arranged on the top of the external bracket, both ends of the water cooling box are connected with connecting pipes, a water cooling pipe is arranged between the two connecting pipes, the water cooling pipe is in contact with the outer shell of the graphics card body, the two connecting pipes are respectively arranged on both sides of the driving component, and the two connecting pipes are both provided with branch pipes extending in the direction of the driving component.

[0009] Preferably, a first one-way valve and a second one-way valve are provided on the inner wall of the connecting pipe at both ends of the branch pipe, the first one-way valve is located below the water cooling box, and the second one-way valve is located above the water cooling pipe. A plunger is slidably arranged in the branch pipe, and a bracket is fixedly connected to the swing frame in the directions of the two branch pipes, and a transmission frame is hingedly connected between the bracket and the plunger.

[0010] Preferably, the peripheral bracket is also fixedly connected to a dust box, the dust box is arranged toward the air outlet end on the graphics card body, the dust box is provided with a cleaning piece, the cleaning piece includes a rotating rod rotatably arranged on the top of the dust box, the rotating rod is fixedly connected to a rotating gear, the swing frame is provided with a ring gear, the rotating gear is meshed with the ring gear, the rotating rod is fixedly connected to a rotating frame, a slide groove is provided on the top of the dust box, a movable plate is correspondingly slidably provided in the slide groove, connecting rods are hingedly provided on the two movable plates, the other end of the connecting rod away from the movable plate is hingedly matched with the rotating frame, a cleaning brush is provided on the movable plate, and the cleaning brush contacts the outer wall of the air outlet end on the graphics card body.

[0011] Preferably, a corresponding rotating rod is rotatably arranged in the dust box, a rotating gear is fixedly connected to the rotating rod, a transmission rack meshing with the rotating gear is arranged at the bottom of the movable plate, and a negative pressure fan is fixedly arranged on the rotating rod.

[0012] Preferably, a filter is provided on the dust collection box on one side facing the air outlet end of the graphics card body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, when the graphics card body is subjected to a cooling treatment, water-cooling liquid is arranged in the water cooling box, and the driving block is rotated under the drive of the driving motor. When the driving block rotates, the limit rod on the driving block will contact the limit groove on the swing frame, and the swing frame will swing back and forth on the fixed rod under the restriction of the limit groove. When the swing frame swings back and forth, the two brackets on the swing frame will pull the transmission frame arranged in the two branch pipes to move back and forth, thereby causing the plunger in the branch pipe to move back and forth in the branch pipe. When the plunger moves in the branch pipe, the first one-way valve is first opened to allow the water-cooling liquid in the water cooling box to enter the connecting pipe, and then when the plunger moves and resets, the first one-way valve is closed to open the second one-way valve, and the water-cooling liquid in the connecting pipe is discharged into the water cooling pipe. The water cooling pipe contacts the shell of the graphics card body, thereby enabling the graphics card to be cooled. Furthermore, through this arrangement, the cooling operation of the graphics card when the graphics card is heated can be effectively handled.

[0015] In the present invention, when the driving part drives the water-cooling circulation part to cool the graphics card, the swing frame on the driving part swings back and forth, and the ring gear on the swing frame will contact the rotating gear, and then the rotating rod will rotate back and forth through the rotating gear. When the rotating rod drives the rotating frame to rotate back and forth, the connecting rods arranged at both ends of the rotating frame will pull the movable plate to move in the slide groove in the dust collection box. At this time, the cleaning brush on the movable plate will scrape and wipe the dust generated on the air outlet end of the graphics card body, thereby effectively cleaning the dust and impurities at the air outlet of the graphics card body, and avoiding the dust from affecting the heat dissipation of the graphics card.

[0016] In the present invention, when the movable plate drives the cleaning brush to clean the dust and impurities on the air outlet end of the graphics card body, the movable plate moves, and the transmission rack arranged at the bottom of the movable plate drives the rotating gear to rotate, thereby enabling the rotating rod to drive the negative pressure fan to rotate. The rotation of the negative pressure fan can suck the dust scraped by the cleaning brush into the dust collection box, so that the dust in the dust collection box is on the surface of the filter, thereby effectively collecting and processing the dust in the chassis, and when cleaning the dust subsequently, it only needs to remove the filter from the dust collection box for easy replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0019] Figure 3It is a schematic diagram of the three-dimensional structure of the driving member of the present invention;

[0020] Figure 4 It is a sectional view of the three-dimensional structure of the water-cooling circulation component of the present invention;

[0021] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning member of the present invention;

[0023] Figure 7 It is a sectional view of the three-dimensional structure of the cleaning element of the present invention.

[0024] In the figure: 1. graphics card body; 11. peripheral bracket; 2. driving part; 21. driving motor; 22. driving block; 23. limiting rod; 24. fixing rod; 25. swing frame; 251. limiting groove; 26. bracket; 3. water cooling circulation part; 31. water cooling box; 32. connecting pipe; 33. water cooling pipe; 34. branch pipe; 35. first one-way valve; 36. second one-way valve; 37. plunger; 38. transmission frame; 4. dust collection box; 5. cleaning part; 51. rotating rod; 52. rotating gear; 53. ring gear; 54. rotating frame; 55. moving plate; 56. connecting rod; 57. cleaning brush; 6. rotating rod; 61. rotating gear; 62. transmission rack; 63. negative pressure fan; 64. filter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 7 The present invention provides a technical solution: an automatic cooling device for a graphics card, comprising a graphics card body 1, an external bracket 11 is installed on the top of the graphics card body 1, a driving component 2 and a water-cooling circulation component 3 are arranged on the external bracket 11, the driving component 2 is arranged on the side wall of the external bracket 11, the water-cooling circulation component 3 is fixedly connected to the top of the external bracket 11, and the water-cooling circulation component 3 is in contact with the shell of the graphics card body 1, and the driving component 2 and the water-cooling circulation component 3 are slidably matched.

[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the driving member 2 includes a driving motor 21 fixedly connected to the top of the external bracket 11, the main shaft of the driving motor 21 is rotatably matched with the external bracket 11, the main shaft of the driving motor 21 is drivingly connected to a driving block 22, one end of the driving block 22 away from the main shaft of the driving motor 21 is fixedly connected to a limiting rod 23, the bottom of the external bracket 11 is fixedly connected to a fixing rod 24, a swing frame 25 is rotatably provided on the fixing rod 24, a limiting groove 251 is provided on the swing frame 25, and the limiting rod 23 on the driving block 22 is in the limiting groove 251 on the swing frame 25;

[0028] The water cooling circulation part 3 includes a water cooling box 31 fixedly arranged on the top of the external bracket 11, and both ends of the water cooling box 31 are connected with connecting pipes 32, and a water cooling pipe 33 is arranged between the two connecting pipes 32, and the water cooling pipe 33 is in contact with the outer shell of the graphics card body 1. The two connecting pipes 32 are respectively arranged on both sides of the driving part 2, and the two connecting pipes 32 are both extended toward the direction of the driving part 2. Branch pipes 34;

[0029] The driving block 22 is rotated under the drive of the driving motor 21. When the driving block 22 rotates, the limiting rod 23 on the driving block 22 contacts the limiting groove 251 on the swing frame 25. Under the restriction of the limiting groove 251, the swing frame 25 swings back and forth on the fixed rod 24. When the swing frame 25 swings back and forth, the two brackets 26 on the swing frame 25 pull the transmission frame 38 set in the two branch pipes 34 to move back and forth, thereby causing the plunger 37 in the branch pipe 34 to move back and forth in the branch pipe 34. When the plunger 37 moves in the branch pipe 34, the first one-way valve 35 is first opened to allow the water-cooling liquid in the water-cooling box 31 to enter the connecting pipe 32. Then, when the plunger 37 moves to reset, the first one-way valve 35 is closed to open the second one-way valve 36, and the water-cooling liquid in the connecting pipe 32 is discharged into the water-cooling pipe 33. The water-cooling pipe 33 is in contact with the shell of the graphics card body 1, so that the graphics card can be cooled. Through this arrangement, the cooling operation of the graphics card when the graphics card is hot can be effectively handled.

[0030] A first one-way valve 35 and a second one-way valve 36 are provided on the inner wall of the connecting pipe 32 at both ends of the upper and lower ends of the branch pipe 34. The first one-way valve 35 is located below the water cooling box 31, and the second one-way valve 36 is located above the water cooling pipe 33. A plunger 37 is slidably provided in the branch pipe 34. Brackets 26 are fixedly connected to the swing frame 25 in the direction of the two branch pipes 34 respectively. A transmission frame 38 is hingedly connected between the bracket 26 and the plunger 37.

[0031] When the graphics card body 1 is cooled, water-cooling liquid is provided in the water cooling box 31, and the driving block 22 is rotated under the drive of the driving motor 21. When the driving block 22 rotates, the limiting rod 23 on the driving block 22 will contact the limiting groove 251 on the swing frame 25, and the swing frame 25 will swing back and forth on the fixed rod 24 under the restriction of the limiting groove 251. When the swing frame 25 swings back and forth, the two brackets 26 on the swing frame 25 will pull the transmission frame 38 set in the two branch pipes 34 to move back and forth, thereby causing the plunger 37 in the branch pipe 34 to move back and forth in the branch pipe 34.

[0032] When the plunger 37 moves in the branch pipe 34, it first opens the first one-way valve 35 to allow the water-cooling liquid in the water cooling box 31 to enter the connecting pipe 32. Then, when the plunger 37 moves to reset, the first one-way valve 35 is closed to open the second one-way valve 36, and the water-cooling liquid in the connecting pipe 32 is discharged into the water cooling pipe 33. The water cooling pipe 33 contacts the shell of the graphics card body 1, so that the graphics card can be cooled. Through this setting, the cooling operation of the graphics card when the graphics card is hot can be effectively handled.

[0033] In this embodiment, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the peripheral bracket 11 is also fixedly connected to a dust box 4, and the dust box 4 is arranged toward the air outlet end on the graphics card body 1. The dust box 4 is provided with a cleaning member 5, and the cleaning member 5 includes a rotating rod 51 rotatably arranged on the top of the dust box 4, and a rotating gear 52 is fixedly connected to the rotating rod 51. A ring gear 53 is arranged on the swing frame 25, and the rotating gear 52 is meshed with the ring gear 53. A rotating frame 54 is fixedly connected to the rotating rod 51. A slide groove is provided on the top of the dust box 4, and a movable plate 55 is correspondingly slidably arranged in the slide groove. A connecting rod 56 is hingedly arranged on the two movable plates 55, and the other end of the connecting rod 56 away from the movable plate 55 is hingedly matched with the rotating frame 54. A cleaning brush 57 is provided on the movable plate 55, and the cleaning brush 57 contacts the outer wall of the air outlet end on the graphics card body 1.

[0034] When the driving member 2 drives the water cooling circulation member 3 to cool the graphics card, the swing frame 25 on the driving member 2 swings back and forth, and the ring gear 53 on the swing frame 25 contacts the rotating gear 52, and then the rotating rod 51 rotates back and forth through the rotating gear 52. When the rotating rod 51 drives the rotating frame 54 to rotate back and forth, the connecting rods 56 arranged at both ends of the rotating frame 54 will pull the moving plate 55 to move in the slide groove in the dust box 4. At this time, the cleaning brush 57 on the moving plate 55 will scrape and wipe the dust generated on the air outlet end of the graphics card body 1, thereby effectively cleaning the dust and impurities at the air outlet of the graphics card body 1 to prevent the dust from affecting the heat dissipation of the graphics card.

[0035] In this embodiment, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, a corresponding rotating rod 6 is rotatably arranged in the dust box 4, a rotating gear 61 is fixedly connected to the rotating rod 6, a transmission rack 62 meshing with the rotating gear 61 is arranged at the bottom of the movable plate 55, and a negative pressure fan 63 is fixedly arranged on the rotating rod 6;

[0036] A filter screen 64 is provided on one side of the dust box 4 facing the air outlet end of the graphics card body 1;

[0037] When the movable plate 55 drives the cleaning brush 57 to clean the dust and impurities on the air outlet end of the graphics card body 1, the movable plate 55 moves, and the transmission rack 62 set at the bottom of the movable plate 55 will drive the rotating gear 61 to rotate, so that the rotating rod 6 can drive the negative pressure fan 63 to rotate. The rotation of the negative pressure fan 63 can suck the dust scraped by the cleaning brush 57 into the dust box 4, so that the dust in the dust box 4 is on the surface of the filter 64, thereby effectively collecting and processing the dust in the chassis, and when cleaning the dust subsequently, you only need to remove the filter 64 from the dust box 4 for easy replacement.

[0038] The use method and advantages of the present invention: The use method of the automatic cooling device for a graphics card, the working process is as follows:

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown in the figure: when the graphics card body 1 is cooled, water cooling liquid is arranged in the water cooling box 31, and the driving block 22 is rotated under the drive of the driving motor 21. When the driving block 22 rotates, the limiting rod 23 on the driving block 22 will contact the limiting groove 251 on the swing frame 25, and the swing frame 25 will swing back and forth on the fixed rod 24 under the restriction of the limiting groove 251. When the swing frame 25 swings back and forth, the two brackets 26 on the swing frame 25 will pull the transmission frame 38 arranged in the two branch pipes 34 to move back and forth, thereby making the transmission frame 38 in the branch pipes 34 move back and forth. The plunger 37 in the branch pipe 34 reciprocates in the branch pipe 34. When the plunger 37 moves in the branch pipe 34, the first one-way valve 35 is first opened to allow the water-cooling liquid in the water-cooling box 31 to enter the connecting pipe 32. Then, when the plunger 37 moves and resets, the first one-way valve 35 is closed to open the second one-way valve 36, and the water-cooling liquid in the connecting pipe 32 is discharged into the water-cooling pipe 33. The water-cooling pipe 33 contacts the shell of the graphics card body 1, so that the graphics card can be cooled. This setting can effectively handle the cooling operation of the graphics card when the graphics card is heated.

[0040] When the driving member 2 drives the water-cooling circulation member 3 to cool the graphics card, the swing frame 25 on the driving member 2 swings back and forth, and the ring gear 53 on the swing frame 25 contacts the rotating gear 52, and then the rotating rod 51 rotates back and forth through the rotating gear 52. When the rotating rod 51 drives the rotating frame 54 to rotate back and forth, the connecting rods 56 arranged at both ends of the rotating frame 54 pull the moving plate 55 to move in the slide groove in the dust box 4. At this time, the cleaning brush 57 on the moving plate 55 will scrape and wipe the dust generated on the air outlet end of the graphics card body 1, thereby effectively cleaning the dust and impurities at the air outlet of the graphics card body 1 to prevent the dust from affecting the heat dissipation of the graphics card;

[0041] When the movable plate 55 drives the cleaning brush 57 to clean the dust and impurities on the air outlet end of the graphics card body 1, the movable plate 55 moves, and the transmission rack 62 set at the bottom of the movable plate 55 will drive the rotating gear 61 to rotate, so that the rotating rod 6 can drive the negative pressure fan 63 to rotate. The rotation of the negative pressure fan 63 can suck the dust scraped by the cleaning brush 57 into the dust box 4, so that the dust in the dust box 4 is on the surface of the filter 64, thereby effectively collecting and processing the dust in the chassis, and when cleaning the dust subsequently, you only need to remove the filter 64 from the dust box 4 for easy replacement.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A graphics card automatic cooling device, characterized in that: It comprises a graphics card body (1), a peripheral bracket (11) being installed on the top of the graphics card body (1). The external bracket (11) is provided with a driving component (2) and a water cooling circulation component (3); the driving component (2) is arranged on a side wall of the external bracket (11); The water-cooling circulation component (3) is fixedly connected to the top of the peripheral bracket (11), and the water-cooling circulation component (3) is in contact with the shell of the graphics card body (1), and the driving component (2) is slidably matched with the water-cooling circulation component (3).

2. The automatic cooling device for a graphics card according to claim 1, characterized in that: The driving member (2) comprises a driving motor (21) fixedly connected to the top of the external bracket (11), and the main shaft of the driving motor (21) is rotatably matched with the external bracket (11). The main shaft of the driving motor (21) is drivingly connected to a driving block (22); one end of the driving block (22) away from the main shaft of the driving motor (21) is fixedly connected to a limiting rod (23); and the bottom of the external bracket (11) is fixedly connected to a fixing rod (24). A swing frame (25) is rotatably arranged on the fixed rod (24), a limiting groove (251) is provided on the swing frame (25), and the limiting rod (23) on the driving block (22) is located in the limiting groove (251) on the swing frame (25).

3. The automatic cooling device for a graphics card according to claim 1, characterized in that: The water-cooling circulation component (3) comprises a water-cooling box (31) fixedly arranged on the top of the external bracket (11), both ends of the water-cooling box (31) are connected with connecting pipes (32), and a water-cooling pipe (33) is arranged between the two connecting pipes (32). The water cooling pipe (33) is in contact with the outer shell of the graphics card body (1), the two connecting pipes (32) are respectively arranged on both sides of the driving member (2), and the two connecting pipes (32) are both provided with branch pipes (34) extending in the direction of the driving member (2).

4. The automatic cooling device for a graphics card according to claim 3, characterized in that: A first one-way valve (35) and a second one-way valve (36) are provided on the inner wall of the connecting pipe (32) at both upper and lower ends of the branch pipe (34). The first one-way valve (35) is located below the water cooling box (31), and the second one-way valve (36) is located above the water cooling pipe (33). A plunger (37) is slidably arranged in the branch pipe (34), and a bracket (26) is fixedly connected to the swing frame (25) in the direction of the two branch pipes (34), and a transmission frame (38) is hingedly connected between the bracket (26) and the plunger (37).

5. The automatic cooling device for a graphics card according to claim 2, characterized in that: The peripheral bracket (11) is also fixedly connected to a dust collection box (4), and the dust collection box (4) is arranged toward the air outlet end on the graphics card body (1).

6. The automatic cooling device for a graphics card according to claim 5, characterized in that: The dust box (4) is provided with a cleaning member (5), and the cleaning member (5) comprises a rotating rod (51) rotatably arranged on the top of the dust box (4), and a rotating gear (52) is fixedly connected to the rotating rod (51). The swing frame (25) is provided with a ring gear (53), the rotating gear (52) is meshed with the ring gear (53), the rotating rod (51) is fixedly connected with a rotating frame (54), the top of the dust collection box (4) is provided with a slide groove, and a movable plate (55) is slidably arranged in the slide groove. The two movable plates (55) are both hingedly provided with connecting rods (56), and the other end of the connecting rod (56) away from the movable plate (55) is hingedly matched with the rotating frame (54). The movable plate (55) is provided with a cleaning brush (57), and the cleaning brush (57) is in contact with the outer wall of the air outlet end on the graphics card body (1).

7. The automatic cooling device for a graphics card according to claim 6, characterized in that: A corresponding rotating rod (6) is also rotatably arranged in the dust collection box (4), and a rotating gear (61) is fixedly connected to the rotating rod (6). A transmission rack (62) meshing with a rotating gear (61) is provided at the bottom of the movable plate (55), and a negative pressure fan (63) is fixedly provided on the rotating rod (6).

8. The automatic cooling device for a graphics card according to claim 7, characterized in that: A filter screen (64) is provided on one side of the dust collection box (4) facing the air outlet end of the graphics card body (1).

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