An efficient heat dissipation and noise reduction device for electrical control cabinet

Abstract

The present invention belongs to the technical field of electrical control cabinets, and provides an efficient heat dissipation and noise reduction device for an electrical control cabinet, comprising a cabinet body, a cabinet door being rotatably installed on one side of the cabinet body, a plurality of groups of spaced partitions being fixedly installed in the cabinet body, cavities being provided on the partitions and the bottom side walls of the cabinet body, and through holes communicating with the cavities being provided on the partitions and the bottom side walls of the cabinet body, so as to solve the technical problem in the prior art that heat accumulation at the top of the electrical control cabinet is difficult to dissipate quickly, resulting in damage to electrical components. The present invention transports air to the partitions and the cavity at the bottom of the cabinet body through a ventilation component, thereby avoiding the air from flowing a long distance in the cabinet body, thereby ensuring that the air temperature is low when flowing in the cabinet body, so that the air entering the cabinet body from the outside can carry more heat and leave the cabinet body. The present invention can be widely used in operating scenarios for cooling the cabinet body.

Description

Technical Field

[0001] The invention belongs to the technical field of electric control cabinets, and in particular relates to a high-efficiency heat dissipation and noise reduction device for an electric control cabinet. Background Art

[0002] The electrical control cabinet is a cabinet made of steel to protect the normal operation of components. A large number of electrical components are often installed in the electrical control cabinet, which will generate a lot of heat during use. However, the heat will cause the electrical components to heat up and be damaged, so it is necessary to control the temperature inside the electrical control cabinet.

[0003] Existing electrical control cabinets usually introduce cold air from the bottom of the electrical control cabinet when dissipating heat, and then accelerate the discharge of hot air from the top of the electrical control cabinet through fans or blowers and other equipment to complete the heat dissipation. However, after the cold air enters the electrical control cabinet from the bottom, it is heated and flows upward. When it flows to the top of the electrical control cabinet, the air temperature is already very high, so it is difficult for the electronic devices above to come into contact with the cold air, reducing the cooling effect of the electronic devices above. At the same time, the hot air will come into contact with the electronic devices above during the upward flow process, and the electronic devices themselves generate heat, which causes the temperature of the electronic devices above to rise rapidly, making the electronic devices above easy to be damaged. Summary of the invention

[0004] The purpose of the present invention is to provide an efficient heat dissipation and noise reduction device for an electrical control cabinet, aiming to solve the technical problem in the prior art that heat accumulation in the upper part of the electrical control cabinet is difficult to dissipate quickly, resulting in damage to electrical components.

[0005] The present invention is implemented as follows: an efficient heat dissipation and noise reduction device for an electrical control cabinet comprises a cabinet body, a cabinet door is rotatably mounted on one side of the cabinet body, a plurality of partitions are fixedly mounted in the cabinet body, cavities are provided on the partitions and the bottom side walls of the cabinet body, and through holes communicating with the cavities are provided on the partitions and the bottom side walls of the cabinet body;

[0006] A plurality of groups of first support plates are fixedly installed in the cabinet, the first support plates correspond to the partitions one by one and are located below the corresponding partitions, one end of the first support plates is spaced from the inner wall of the cabinet, a plurality of groups of second support plates are fixedly installed in the cabinet, the second support plates correspond to the first support plates one by one and are located below the first support plates, one end of the second support plates is spaced from the inner wall of the cabinet and the second support plates form an angle with the horizontal plane, the space between the second support plates, the first support plates and the inner wall of the cabinet is located on both sides, and a ventilation component for replacing the gas in the cabinet is provided on the cabinet.

[0007] Further technical solution: A plurality of groups of heat sinks distributed at intervals are fixedly mounted on the surface of the partition close to the first support plate.

[0008] Further technical solution: The ventilation component includes an air intake connecting box, which is provided with multiple groups and fixedly installed on the side of the cabinet. The positions of the multiple groups of air intake connecting boxes correspond to the positions of the partition and the bottom side wall of the cabinet. Multiple groups of third air holes are opened on the side wall of the cabinet. The cavities on the partition and the bottom side wall of the cabinet are connected to the air intake connecting box through the third air holes. The multiple groups of air intake connecting boxes are connected to the hair dryer located on the side of the cabinet through pipes.

[0009] Further technical solution: A second air hole located between the partition plate and the first support plate is also opened on the side wall of the cabinet, and the second air hole is connected to the air inlet connecting box.

[0010] Further technical solution: The ventilation component also includes an air outlet connecting box, which is provided with multiple groups and fixedly installed on the side of the cabinet. The positions of the multiple groups of air outlet connecting boxes correspond to the position of the second support plate. Multiple groups of first air holes connected to the air outlet connecting boxes are opened on the side wall of the cabinet. The first air holes are located at the gap between the second support plate and the cabinet. The multiple groups of air outlet connecting boxes are connected to the exhaust fan located on the top of the cabinet through pipes.

[0011] Further technical solution: a card slot is provided at the bottom of the cabinet, and a grille baffle for covering the card slot is provided on the cabinet, a plurality of groups of mounting tubes distributed in a linear array are fixedly installed in the card slot, a base plate is fixedly installed on the mounting tube, a mounting cylinder is fixedly installed on the base plate, a through slot is provided on the side wall of the mounting cylinder and the mounting cylinder is connected with the mounting tube, a filter cartridge is sleeved on the mounting cylinder, the base plate, the mounting cylinder and the filter cartridge are all coaxially arranged with the mounting tube, a second connecting tube is connected to the air inlet end of the hair dryer, and the second connecting tube is connected to the plurality of mounting tubes at the same time.

[0012] Further technical solution: a plurality of groups of circulation holes are provided on the side wall of the cabinet, the circulation holes are arranged along the length direction of the cabinet and the upper ends thereof pass through the side wall of the cabinet, the circulation holes are connected with the card slots and the circulation holes correspond one to one with the mounting tubes and are coaxially arranged, a closing box is fixedly installed on the top of the cabinet, the circulation holes are all located in the closing box, a first connecting pipe is connected to the closing box, the first connecting pipe is connected to the blowing pipe at the air outlet end of the exhaust fan, and the angle between the first connecting pipe and the blowing pipe is an acute angle.

[0013] Further technical solution: a fixed plate is fixedly installed in the card slot, and multiple sets of rotating shafts are rotatably installed on the fixed plate. The rotating shafts correspond to the mounting tubes one by one and are coaxially arranged. A cleaning brush is fixedly installed on one end of the rotating shaft close to the mounting tube, and the cleaning brush contacts the side wall of the filter cartridge. A driving blade located in the flow hole is fixedly installed on the end of the rotating shaft away from the mounting tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The air is transported to the cavity at the bottom of the partition and the cabinet through the ventilation component, and the air is ejected through the through holes. The air is blown out from the bottom through the evenly distributed through holes, so that the electrical components in various positions can be blown, avoiding overheating of some electrical components caused by mutual obstruction between the electrical components, and improving the cooling effect of the electrical components. At the same time, blowing air to each partition separately avoids the air flowing a long distance in the cabinet, thereby ensuring that the temperature of the air is low when flowing in the cabinet, so that the air from the outside entering the cabinet can carry more heat to leave the cabinet, thereby improving the heat dissipation effect of the cabinet.

[0016] 2. The hot air moving upward is blocked by the first support plate and the second support plate, and the air in the cabinet is extracted from the lower part of the partition through the ventilation component. After the hot air rises to the position of the second support plate, it will be extracted and discharged outward by the ventilation component, thereby avoiding the hot air formed by the heat dissipated by the electrical components below to affect the electrical components above, reducing the temperature rise rate of the electrical components above, and further improving the heat dissipation effect in the cabinet.

[0017] 3. When the hot air in the cabinet is discharged, it can drive the air to flow in the circulation holes. When the air flows in the circulation holes, it can take away the heat on the side walls of the cabinet, thereby further improving the cooling effect of the cabinet. At the same time, it allows the air around the cabinet to flow to the side walls of the cabinet, improving the natural cooling ability of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the grille baffle in the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the ventilation component in the present invention.

[0021] Figure 4 It is a schematic diagram of the structure inside the cabinet in the present invention.

[0022] Figure 5 It is a structural schematic diagram of the card slot in the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the installation pipe in the present invention.

[0024] Figure 7 for Figure 1 A magnified schematic diagram of the A1 region in the middle.

[0025] In the attached drawings: 1. cabinet body; 2. cabinet door; 3. partition; 4. through hole; 5. first support plate; 6. second support plate; 7. heat sink; 8. first air hole; 9. second air hole; 10. third air hole; 11. air inlet connecting box; 12. air outlet connecting box; 13. hair dryer; 14. exhaust fan; 15. slot; 16. grille baffle; 17. mounting tube; 18. bottom plate; 19. mounting tube; 20. fixing nut; 21. filter cartridge; 22. fixing plate; 23. rotating shaft; 24. cleaning brush; 25. driving blade; 26. circulation hole; 27. closing box; 28. blowing pipe; 29. ​​first connecting pipe; 30. second connecting pipe; 31. ventilation component. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] like Figure 1-Figure 4 As shown, an efficient heat dissipation and noise reduction device for an electrical control cabinet provided by the present invention comprises a cabinet body 1, a cabinet door 2 is rotatably mounted on one side of the cabinet body 1, a plurality of groups of partitions 3 are fixedly mounted inside the cabinet body 1 and are spaced apart from each other, cavities are formed on the partitions 3 and the bottom side walls of the cabinet body 1, and through holes 4 communicating with the cavities are formed on the partitions 3 and the bottom side walls of the cabinet body 1;

[0029] A plurality of groups of first support plates 5 are fixedly installed in the cabinet 1, the first support plates 5 correspond to the partition plates 3 one-to-one and are located below the corresponding partition plates 3, one end of the first support plates 5 is spaced from the inner wall of the cabinet 1, a plurality of groups of heat sinks 7 are fixedly installed at intervals on the surface of the partition plate 3 close to the first support plates 5, a plurality of groups of second support plates 6 are fixedly installed in the cabinet 1, the second support plates 6 correspond to the first support plates 5 one-to-one and are located below the first support plates 5, one end of the second support plates 6 is spaced from the inner wall of the cabinet 1 and an angle is set between the second support plates 6 and the horizontal plane, the space between the second support plates 6, the first support plates 5 and the inner wall of the cabinet 1 is located on both sides, and a ventilation component 31 for replacing the gas in the cabinet 1 is provided on the cabinet 1.

[0030] In actual application of this embodiment, the electrical components are installed at the bottom of the cabinet 1 or on each partition 3. When in normal use, the cabinet door 2 is in a closed state. At this time, the ventilation component 31 transports air to the partition 3 and the cavity at the bottom of the cabinet 1, and the air is ejected through the through holes 4. The air is blown out from below through the evenly distributed through holes 4, so that the electrical components at various positions can be blown, avoiding overheating of some electrical components caused by mutual shielding between the electrical components, and improving the cooling effect of the electrical components. At the same time, blowing air to each partition 3 separately avoids the air flowing a long distance in the cabinet 1, thereby ensuring that the temperature of the air is low when flowing in the cabinet 1, so that the air entering the cabinet 1 from the outside can carry more heat to leave the cabinet 1, thereby improving the heat dissipation effect of the cabinet 1;

[0031] When the electrical components below generate heat, the heat will heat the air and the hot air will flow upward. At this time, the hot air moving upward is blocked by the first support plate 5 and the second support plate 6, and at the same time, the air in the cabinet 1 is extracted from the lower part of the partition 3 through the ventilation component 31, so that the hot air will be extracted and discharged outward by the ventilation component 31 after rising to the position of the second support plate 6, thereby avoiding the hot air formed by the heat dissipated by the electrical components below to affect the electrical components above, reducing the heating rate of the electrical components above, and further improving the heat dissipation effect in the cabinet 1, thereby ensuring that the electrical components in the cabinet 1 are operated at a suitable temperature and reducing noise pollution during operation.

[0032] like Figure 1-Figure 3 As shown, a high-efficiency heat dissipation and noise reduction device for an electrical control cabinet provided by the present invention, the ventilation component 31 includes an air intake connecting box 11, and the air intake connecting box 11 is provided with multiple groups and fixedly installed on the side of the cabinet 1, and the positions of the multiple groups of air intake connecting boxes 11 correspond to the positions of the partition 3 and the bottom side wall of the cabinet 1, and multiple groups of third air holes 10 are opened on the side wall of the cabinet 1, and the cavities on the partition 3 and the bottom side wall of the cabinet 1 are connected to the air intake connecting box 11 through the third air holes 10, and the multiple groups of air intake connecting boxes 11 are connected to the hair dryer 13 located on the side of the cabinet 1 through pipes.

[0033] Specifically, a second air hole 9 located between the partition plate 3 and the first support plate 5 is further opened on the side wall of the cabinet body 1 , and the second air hole 9 is communicated with the air inlet connecting box 11 .

[0034] Specifically, the ventilation component 31 also includes an air outlet connecting box 12, and the air outlet connecting box 12 is provided with multiple groups and fixedly installed on the side of the cabinet 1. The positions of the multiple groups of air outlet connecting boxes 12 correspond to the position of the second support plate 6. Multiple groups of first air holes 8 connected to the air outlet connecting boxes 12 are opened on the side wall of the cabinet 1. The first air holes 8 are located at the gap between the second support plate 6 and the cabinet 1. The multiple groups of air outlet connecting boxes 12 are connected to the exhaust fan 14 located on the top of the cabinet 1 through pipes.

[0035] In actual application of this embodiment, the hair dryer 13 delivers air to the multiple groups of air intake connecting boxes 11 through the pipeline. At this time, the air in the air intake connecting boxes 11 can enter the partition 3 and the cavity on the bottom side wall of the cabinet 1 through the third air hole 10, and then the air in the cavity flows out from the through hole 4. At this time, the air with a lower external temperature can be blown to the electrical components installed on the partition 3 or the bottom side wall of the cabinet 1 for cooling, and the air is blown out from the bottom through the evenly distributed through holes 4, so that the electrical components at various positions can be blown, avoiding overheating of some electrical components caused by mutual shielding between the electrical components, and improving the cooling effect of the electrical components;

[0036] At the same time, the air in the air intake connecting box 11 can also be blown into the space formed by the partition 3 and the first support plate 5 through the second air hole 9. At this time, the air will move along the path formed by the partition 3, the first support plate 5 and the second support plate 6. The air finally moves to the gap between the second support plate 6 and the inner wall of the cabinet 1 and then is extracted into the air outlet connecting box 12 through the first air hole 8. The gas in the air outlet connecting box 12 is extracted by the exhaust fan 14. When the air moves along the path formed by the partition 3, the first support plate 5 and the second support plate 6, it will take away the heat on the partition 3, the first support plate 5 and the second support plate 6, thereby reducing the heat at the partition 3. At the same time, it can prevent the hot air moving upward from the bottom from contacting the upper partition 3 to prevent the upper electrical components from being affected by the heat emitted by the lower electrical components, thereby further improving the cooling effect in the cabinet 1.

[0037] like Figure 5-Figure 7 As shown, a high-efficiency heat dissipation and noise reduction device for an electrical control cabinet provided by the present invention is provided. A card slot 15 is provided at the bottom of the cabinet body 1, and a grille baffle 16 for blocking the card slot 15 is provided on the cabinet body 1. A plurality of groups of mounting tubes 17 distributed in a linear array are fixedly installed in the card slot 15, a bottom plate 18 is fixedly installed on the mounting tube 17, a mounting cylinder 19 is fixedly installed on the bottom plate 18, a through groove is provided on the side wall of the mounting cylinder 19 and the mounting cylinder 19 is connected to the mounting tube 17, a filter cartridge 21 is sleeved on the mounting cylinder 19, the bottom plate 18, the mounting cylinder 19 and the filter cartridge 21 are all coaxially arranged with the mounting tube 17, and a second connecting tube 30 is connected to the air inlet end of the hair dryer 13, and the second connecting tube 30 is connected to the plurality of mounting tubes 17 at the same time.

[0038] Specifically, a plurality of groups of circulation holes 26 are provided on the side wall of the cabinet 1. The circulation holes 26 are arranged along the length direction of the cabinet 1 and the upper ends thereof penetrate the side wall of the cabinet 1. The circulation holes 26 are connected to the card slots 15 and the circulation holes 26 correspond one to one with the mounting tube 17 and are coaxially arranged. A closing box 27 is fixedly installed on the top of the cabinet 1. The circulation holes 26 are all located in the closing box 27. A first connecting pipe 29 is connected to the closing box 27. The first connecting pipe 29 is connected to the blowing pipe 28 at the air outlet end of the exhaust fan 14, and the angle between the first connecting pipe 29 and the blowing pipe 28 is an acute angle.

[0039] Specifically, a fixing plate 22 is fixedly installed in the slot 15, and a plurality of sets of rotating shafts 23 are rotatably installed on the fixing plate 22. The rotating shafts 23 correspond to the mounting tubes 17 one by one and are coaxially arranged. A cleaning brush 24 is fixedly installed on one end of the rotating shaft 23 close to the mounting tube 17, and the cleaning brush 24 contacts the side wall of the filter cartridge 21. A driving blade 25 located in the circulation hole 26 is fixedly installed on one end of the rotating shaft 23 away from the mounting tube 17.

[0040] In actual application of this embodiment, the filter cartridge 21 is installed on the mounting cartridge 19 and fixed by the fixing nut 20, and the air exhausted by the exhaust fan 14 is blown out through the blowing pipe 28. Since the air flows quickly in the blowing pipe 28, the air pressure in the blowing pipe 28 is relatively low at this time, and then the air in the closed box 27 enters the blowing pipe 28 through the first connecting pipe 29 under the action of the gas pressure. At this time, the air enters the card slot 15 through the grille baffle 16, and then enters the closed box 27 through the circulation hole 26 to complete the circulation of the air. When the air flows in the circulation hole 26, it can take away the heat on the side wall of the cabinet 1, thereby further improving the cooling effect of the cabinet 1, and at the same time, the air around the cabinet 1 can flow to the side wall of the cabinet 1, thereby improving the natural cooling ability of the cabinet 1;

[0041] The hair dryer 13 draws air from the mounting tube 17 through the second connecting tube 30, and then the outside air passes through the filter cartridge 21 to replenish the mounting tube 17. Then the outside air is filtered through the filter cartridge 21 and transported to the cabinet 1 for cooling, so as to prevent the air from carrying impurities into the cabinet 1 and ensure good cooling conditions for the cabinet 1. When the air flows in the circulation hole 26, it drives the rotating shaft 23 to rotate through the driving blades 25. When the rotating shaft 23 rotates, it drives the cleaning brush 24 to clean the surface of the filter cartridge 21, thereby ensuring the cleanliness of the surface of the filter cartridge 21 and ensuring the smoothness of the air passing through the filter cartridge 21.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An efficient heat dissipation and noise reduction device for an electrical control cabinet, comprising a cabinet body (1), a cabinet door (2) being rotatably mounted on one side of the cabinet body (1), characterized in that: A plurality of partitions (3) are fixedly installed in the cabinet (1) at intervals, the partitions (3) and the bottom side walls of the cabinet (1) are provided with cavities, and the partitions (3) and the bottom side walls of the cabinet (1) are provided with through holes (4) communicating with the cavities; A plurality of groups of first support plates (5) are fixedly installed in the cabinet (1), the first support plates (5) correspond to the partition plates (3) one by one and the first support plates (5) are located below the corresponding partition plates (3), one end of the first support plates (5) is spaced from the inner wall of the cabinet (1), a plurality of groups of second support plates (6) are fixedly installed in the cabinet (1), the second support plates (6) correspond to the first support plates (5) one by one and the second support plates (6) are located below the first support plates (5), one end of the second support plates (6) is spaced from the inner wall of the cabinet (1) and an angle is formed between the second support plates (6) and the inner wall of the cabinet (1), the space between the second support plates (6), the first support plates (5) and the inner wall of the cabinet (1) is located on both sides, and a ventilation component (31) for replacing the gas in the cabinet (1) is provided on the cabinet (1); The ventilation assembly (31) comprises an air intake connecting box (11), wherein a plurality of air intake connecting boxes (11) are arranged and fixedly mounted on the side of the cabinet (1), wherein the positions of the plurality of air intake connecting boxes (11) correspond to the positions of the partition (3) and the bottom side wall of the cabinet (1), wherein a plurality of third air holes (10) are provided on the side wall of the cabinet (1), wherein the cavities on the partition (3) and the bottom side wall of the cabinet (1) are connected to the air intake connecting boxes (11) via the third air holes (10), and the plurality of air intake connecting boxes (11) are connected to a blower (13) located on the side of the cabinet (1) via a pipeline.

2. The high-efficiency heat dissipation and noise reduction device for an electrical control cabinet according to claim 1, characterized in that: A plurality of groups of heat sinks (7) distributed at intervals are fixedly mounted on the surface of the partition plate (3) close to the first support plate (5).

3. The high-efficiency heat dissipation and noise reduction device for an electrical control cabinet according to claim 1, characterized in that: The cabinet body (1) is also provided with a second air hole (9) located between the partition plate (3) and the first support plate (5), and the second air hole (9) is connected to the air inlet connecting box (11).

4. The high-efficiency heat dissipation and noise reduction device for an electrical control cabinet according to claim 1, characterized in that: The ventilation assembly (31) further comprises an air outlet communication box (12), wherein a plurality of air outlet communication boxes (12) are provided and fixedly mounted on the side of the cabinet (1), wherein the positions of the plurality of air outlet communication boxes (12) correspond to the positions of the second support plate (6), and a plurality of first air holes (8) connected to the air outlet communication boxes (12) are provided on the side wall of the cabinet (1), wherein the first air holes (8) are located at the interval between the second support plate (6) and the cabinet (1), and the plurality of air outlet communication boxes (12) are connected to an exhaust fan (14) located at the top of the cabinet (1) via pipelines.

5. The high-efficiency heat dissipation and noise reduction device for an electrical control cabinet according to claim 4, characterized in that: The cabinet (1) has a card slot (15) at the bottom, and a grille baffle (16) for shielding the card slot (15) is provided on the cabinet (1); a plurality of groups of mounting tubes (17) distributed in a linear array are fixedly installed in the card slot (15); a bottom plate (18) is fixedly installed on the mounting tube (17); a mounting tube (19) is fixedly installed on the bottom plate (18); a through slot is provided on the side wall of the mounting tube (19); the mounting tube (19) is connected to the mounting tube (17); a filter tube (21) is sleeved on the mounting tube (19); the bottom plate (18), the mounting tube (19) and the filter tube (21) are all coaxially arranged with the mounting tube (17); a second connecting tube (30) is connected to the air inlet end of the hair dryer (13); and the second connecting tube (30) is simultaneously connected to the plurality of mounting tubes (17).

6. The high-efficiency heat dissipation and noise reduction device for an electrical control cabinet according to claim 5, characterized in that: The cabinet (1) has a plurality of groups of circulation holes (26) formed on the side wall thereof. The circulation holes (26) are arranged along the length direction of the cabinet (1) and their upper ends penetrate the side wall of the cabinet (1). The circulation holes (26) are connected to the card slots (15) and the circulation holes (26) correspond to the mounting tubes (17) one by one and are arranged coaxially. A sealing box (27) is fixedly mounted on the top of the cabinet (1). The circulation holes (26) are all located in the sealing box (27). A first connecting tube (29) is connected to the sealing box (27). The first connecting tube (29) is connected to a blowing tube (28) at the air outlet end of the exhaust fan (14). The angle between the first connecting tube (29) and the blowing tube (28) is an acute angle.

7. The high-efficiency heat dissipation and noise reduction device for an electrical control cabinet according to claim 6, characterized in that: A fixing plate (22) is fixedly mounted in the slot (15), and a plurality of rotating shafts (23) are rotatably mounted on the fixing plate (22). The rotating shafts (23) correspond to the mounting tubes (17) one by one and are coaxially arranged. A cleaning brush (24) is fixedly mounted on one end of the rotating shaft (23) close to the mounting tube (17), and the cleaning brush (24) contacts the side wall of the filter cartridge (21). A driving blade (25) located in the flow hole (26) is fixedly mounted on one end of the rotating shaft (23) away from the mounting tube (17).

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