Protective structure of electrical control cabinet

Abstract

The invention discloses a protection structure of an electrical control cabinet in the technical field of electrical control cabinets, and the protection structure comprises a cabinet body, the left and right sides of the cabinet body are symmetrically provided with heat dissipation ports, and the positions, located at the outer sides of the heat dissipation ports, of the cabinet body are fixedly connected with dustproof frames; two heat dissipation mechanisms are arranged in the cabinet body, the two heat dissipation mechanisms are respectively used for sucking external cold air into the cabinet body and discharging hot air in the cabinet body, and dust on the dustproof mechanism at the exhaust end is blown away while the air is discharged; an alternating mechanism is arranged in the cabinet body and is used for driving the two heat dissipation mechanisms to alternately exhaust to clean dust on the dustproof mechanisms on the two sides; according to the device, the two heat dissipation mechanisms can be driven to alternately extract air and exhaust air through the alternating mechanism, and dust attached to the dustproof mechanism can be blown off when the heat dissipation mechanisms exhaust air, so that the dust can be automatically cleaned while heat dissipation in the cabinet body is ensured, and the dustproof effect of the cabinet body is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric control cabinets, in particular to a protective structure of an electric control cabinet. Background Art

[0002] A large number of electrical control cabinets are used in construction sites to control various construction equipment. When the electrical control cabinet is working, the electronic components inside it will generate a lot of heat. Therefore, many heat dissipation vents are usually opened on the surface of the electrical control cabinet. Since there is a lot of dust in the air at the construction site, the dust will enter the electrical control cabinet through the heat dissipation vents of the electrical control cabinet, causing damage to the electronic components in the electrical control cabinet. Although the existing electrical control cabinet can effectively prevent dust from entering the electrical control cabinet by adding a dustproof net, the dust will clog the dustproof net over a long period of time, thereby affecting the heat dissipation effect of the electrical control cabinet and also damaging the electronic components in the electrical control cabinet. Summary of the invention

[0003] The object of the present invention is to provide a protective structure for an electrical control cabinet to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a protective structure of an electrical control cabinet, comprising a cabinet body, wherein heat dissipation openings are symmetrically opened on the left and right sides of the cabinet body, and a dustproof frame is fixedly connected to the cabinet body at the outer side of the heat dissipation opening;

[0005] A dustproof mechanism is provided in the dustproof frame, and the dustproof mechanism is used to filter out dust in the air when the outside air enters the cabinet through the heat dissipation port;

[0006] The cabinet is provided with two heat dissipation mechanisms, which are used to draw cold air from the outside into the cabinet and discharge hot air from the cabinet, and to blow away dust on the dust-proof mechanism at the exhaust end while discharging the air;

[0007] An alternating mechanism is arranged in the cabinet, and the alternating mechanism is used to drive the two heat dissipation mechanisms to exhaust air alternately to clean the dust on the dust-proof mechanisms on both sides.

[0008] Preferably, the dustproof mechanism comprises three dustproof nets, the three dustproof nets are equidistantly distributed in the dustproof frame and the three dustproof nets are fixedly connected to the dustproof frame.

[0009] Preferably, the heat dissipation mechanism includes two groups of fans, which are symmetrically arranged at the upper and lower sides of the heat dissipation port in the cabinet; one group of fans includes two fans fixed to each other and the front and rear ends of one group of fans are rotatably connected to the cabinet; the two groups of fans on the right side are horizontal, and when the right fan is in operation, air enters from the right side and is discharged from the left side; the two groups of fans on the left side are vertical, and when the upper fan is in operation, air enters from the lower side and is discharged from the upper side, and when the lower fan is in operation, air enters from the upper side and is discharged from the lower side; each of the dustproof nets is provided with a closing mechanism at a position close to one side of the cabinet, and the closing mechanism is used to block the space of the dustproof net in the dustproof frame close to one side of the cabinet and connect this part of the space with the outside world; guide mechanisms are symmetrically arranged at the left and right sides of the cabinet, and the guide mechanisms are used to guide the wind blown out by the vertically distributed fans to the position between the three dustproof nets and the three closing mechanisms in the dustproof frame; driving mechanisms are provided at the front and rear sides of the dustproof frame, and the driving mechanism is used to successively drive the closing mechanism and the guide mechanism to operate.

[0010] Preferably, the closing mechanism comprises a plurality of first sealing plates, which are equidistantly distributed in the dustproof frame from top to bottom and two adjacent first sealing plates fit together; the first sealing plates are rotatably connected to the dustproof frame and the front and rear ends of the first sealing plates are symmetrically and fixedly connected with rotating rods; an exhaust port is provided on the front and rear sides of the dustproof frame between the plurality of first sealing plates and the dustproof net, and a second sealing plate is slidably connected to the dustproof frame at an outer side of the exhaust port, and the area of ​​the second sealing plate is larger than the area of ​​the exhaust port.

[0011] Preferably, the air guide mechanism includes two groups of air guide covers, and the two groups of air guide covers are symmetrically distributed on the upper and lower sides of the two groups of fans, and one group of air guide covers includes two air guide covers fixed to each other; an air guide pipe is slidably connected inside the air guide cover, and the air guide pipe is fixedly connected to the cabinet and the air guide pipe is located on the outer part of the cabinet and is fixedly connected with three air pipes, and the three air pipes are all fixedly connected to the dustproof frame; the connection between the air pipe and the dustproof frame is located between the dustproof net and a plurality of first sealing plates corresponding to the dustproof net; a first spring is fixedly connected to one group of air guide covers, and the other end of the first spring is fixedly connected to the cabinet.

[0012] The two wheels are connected with each other with a pair of locks, and the two wheels are connected with each other with a pair of locks, and the two wheels are connected with each other with a pair of locks.

[0013] Preferably, the alternating mechanism includes a cylinder, which is located at the rear side of the cabinet and fixedly connected to the cabinet, the telescopic end of the cylinder is fixedly connected to a drive frame, and two racks are symmetrically fixedly connected to the left and right sides of the drive frame, the two racks on the left side are respectively fixedly connected to the two first push blocks on the left side, and the two racks on the right side are respectively fixedly connected to the two first push blocks on the right side; a group of gears are symmetrically fixedly connected to the front and rear sides of the fan, and the racks are meshed with the gears on the upper and lower sides at the same time.

[0014] Preferably, the gear is a quarter gear and teeth are provided on both upper and lower sides of the rack, and the number of teeth on one side of the rack is equal to the number of teeth on the gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention starts two heat dissipation mechanisms, one of which draws cold air from the outside into the cabinet from a heat dissipation port on one side, and the other heat dissipation mechanism discharges hot air in the cabinet from a heat dissipation port on the other side, thereby achieving the effect of cooling the cabinet.

[0017] 2. The present invention can effectively filter out dust in the outside air through the dustproof mechanism in the dustproof frame to prevent dust from entering the cabinet; since the dustproof mechanism filters dust for a long time, dust will adhere to the dustproof mechanism. At this time, the two heat dissipation mechanisms can be driven to alternately draw air and exhaust air through the alternating mechanism. When the heat dissipation mechanism is exhausted, the dust attached to the dustproof mechanism can be blown off, thereby ensuring the heat dissipation in the cabinet and automatically cleaning the dust, thereby ensuring the dustproof effect 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 rear view structural schematic diagram of the present invention;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the present invention;

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the split structure;

[0022] Figure 5 It is a structural schematic diagram of the heat dissipation mechanism in the present invention;

[0023] Figure 6 It is a schematic diagram of the disassembled structure of the heat dissipation mechanism in the present invention;

[0024] Figure 7 It is a structural schematic diagram of the driving mechanism in the present invention;

[0025] Figure 8 It is a structural schematic diagram of the dustproof mechanism in the present invention.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Cabinet; 2. Heat dissipation port; 3. Dustproof frame; 4. Dustproof net; 5. Fan; 6. First sealing plate; 7. Rotating rod; 8. Exhaust port; 9. Second sealing plate; 10. Air guide cover; 11. Air guide pipe; 12. Air pipe; 13. First spring; 14. Sliding rod; 15. Sliding frame; 16. Second spring; 17. First push block; 18. Limiting rod; 19. Second push block; 20. Connecting rod; 21. Cylinder; 22. Driving frame; 23. Rack; 24. Gear. DETAILED DESCRIPTION

[0028] See also Figure 1-Figure 8 The present invention provides a technical solution: a protective structure of an electrical control cabinet, comprising a cabinet body 1, heat dissipation openings 2 are symmetrically opened on the left and right sides of the cabinet body 1, and a dustproof frame 3 is fixedly connected to the cabinet body 1 at the outer side of the heat dissipation opening 2;

[0029] A dustproof mechanism is provided in the dustproof frame 3, and the dustproof mechanism is used to filter out dust in the air when the outside air enters the cabinet 1 through the heat dissipation port 2;

[0030] Two heat dissipation mechanisms are provided in the cabinet 1, and the two heat dissipation mechanisms are used to draw cold air from the outside into the cabinet 1 and discharge hot air from the cabinet 1, and to blow away dust on the dust-proof mechanism at the exhaust end while discharging air;

[0031] An alternating mechanism is provided in the cabinet 1, and the alternating mechanism is used to drive the two heat dissipation mechanisms to exhaust alternately and clean the dust on the dust-proof mechanisms on both sides;

[0032] When the electrical control cabinet is working, the internal electronic components will generate a lot of heat. At this time, two heat dissipation mechanisms are started, one of which draws cold air from the outside into the cabinet 1 from the heat dissipation port 2 on one side, and the other heat dissipation mechanism discharges the hot air in the cabinet 1 from the heat dissipation port 2 on the other side, thereby achieving the effect of cooling the cabinet 1;

[0033] When outside air enters the cabinet 1, the dust in the outside air can be effectively filtered out through the dustproof mechanism in the dustproof frame 3 to prevent dust from entering the cabinet 1; since the dustproof mechanism filters dust for a long time, dust will adhere to the dustproof mechanism. At this time, the two heat dissipation mechanisms can be driven to alternately draw air and exhaust air through the alternating mechanism. When the heat dissipation mechanism is exhausted, the dust attached to the dustproof mechanism can be blown off, thereby ensuring the heat dissipation in the cabinet 1 while automatically cleaning the dust, thereby ensuring the dustproof effect of the cabinet 1.

[0034] like Figure 8 As shown, as a further solution of the present invention, the dustproof mechanism includes three dustproof nets 4, the three dustproof nets 4 are equidistantly distributed in the dustproof frame 3 and the three dustproof nets 4 are fixedly connected to the dustproof frame 3;

[0035] During operation, when outside air enters the cabinet 1 , it will pass through the three dustproof nets 4 . The three dustproof nets 4 can further enhance the dustproof effect of the cabinet 1 , and can effectively prevent dust from entering the cabinet 1 .

[0036] like Figure 5-7 As shown, as a further scheme of the present invention, the heat dissipation mechanism includes two groups of fans 5, and the two groups of fans 5 are symmetrically arranged at the upper and lower sides of the heat dissipation port 2 in the cabinet 1; one group of fans 5 includes two fans 5 fixed to each other and the front and rear ends of one group of fans 5 are rotatably connected to the cabinet 1; the two groups of fans 5 on the right are horizontal, and when the right fan 5 is in operation, the air enters from the right side and is discharged from the left side; the two groups of fans 5 on the left are vertical, and when the upper fan 5 is in operation, the air enters from the lower side and is discharged from the upper side, and when the lower fan 5 is in operation, the air enters from the upper side and is discharged from the lower side; each dust-proof net 4 is provided with a closing mechanism at a position close to one side of the cabinet 1, and the closing mechanism is used to block the space of the dust-proof net 4 in the dust-proof frame 3 close to one side of the cabinet 1 and connect this part of the space with the outside world; the cabinet 1 is symmetrically provided with guide mechanisms at the left and right sides, and the guide mechanisms are used to guide the wind blown out by the vertically distributed fans 5 to the position between the three dust-proof nets 4 and the three closing mechanisms in the dust-proof frame 3; the dust-proof frame 3 is provided with a driving mechanism at the front and rear sides, and the driving mechanism is used to successively drive the closing mechanism and the guide mechanism to operate;

[0037] The closing mechanism includes a plurality of first sealing plates 6, which are equidistantly distributed in the dustproof frame 3 from top to bottom, and two adjacent first sealing plates 6 fit each other; the first sealing plate 6 is rotatably connected to the dustproof frame 3, and the front and rear ends of the first sealing plate 6 are symmetrically fixedly connected with a rotating rod 7; the front and rear sides of the dustproof frame 3 are provided with an exhaust port 8 between the plurality of first sealing plates 6 and the dustproof net 4, and the dustproof frame 3 is slidably connected with a second sealing plate 9 at a position outside the exhaust port 8, and the area of ​​the second sealing plate 9 is larger than the area of ​​the exhaust port 8;

[0038] The air guide mechanism includes two groups of air guide covers 10, which are symmetrically distributed at the upper and lower sides of the two groups of fans 5. One group of air guide covers 10 includes two air guide covers 10 fixed to each other; an air guide pipe 11 is slidably connected inside the air guide cover 10, the air guide pipe 11 is fixedly connected to the cabinet 1 and the air guide pipe 11 is located on the outer part of the cabinet 1 and is fixedly connected to three air pipes 12, and the three air pipes 12 are all fixedly connected to the dustproof frame 3; the connection position of the air pipe 12 and the dustproof frame 3 is located between the dustproof net 4 and the multiple first sealing plates 6 corresponding to the dustproof net 4; a first spring 13 is fixedly connected to one group of air guide covers 10, and the other end of the first spring 13 is fixedly connected to the cabinet 1;

[0039] The driving mechanism includes two slide bars 14, which are symmetrically distributed at the front and rear sides of the dustproof frame 3; the slide bar 14 is slidably connected to the cabinet 1, and the slide bar 14 is slidably connected to the outer part of the cabinet 1 with a slide frame 15, the slide frame 15 and all the rotating rods 7 on the dustproof frame 3 close to the slide frame 15 are clearance-matched, and the slide frame 15 is fixedly connected to the two second sealing plates 9 close to it; a second spring 16 is sleeved on the slide bar 14, one end of the second spring 16 is fixedly connected to the slide bar 14 and the other end The sliding frame 15 is fixedly connected; the sliding rod 14 is located at one end inside the cabinet 1 and is fixedly connected to a first push block 17, a limit rod 18 is arranged inside the first push block 17, and the limit rod 18 is fixedly connected to the cabinet 1; the first push block 17 is slidably connected to the limit rod 18, and a second push block 19 is slidably connected to the limit rod 18, and the second push block 19 is symmetrically rotatably connected to the upper and lower ends of the connecting rod 20, the upper end of the upper connecting rod 20 is rotatably connected to a group of air deflectors 10 on the upper side, and the lower end of the lower connecting rod 20 is rotatably connected to a group of air deflectors 10 on the lower side;

[0040] During operation, by starting the fans 5 on the left and right sides, the two groups of fans 5 on the right side draw the outside air into the cabinet 1 through the three-layer dustproof net 4 on the right side, and the two groups of fans 5 on the left side transport the air in the cabinet 1 upward and downward respectively; the upper and lower air guide covers 10 are tightly connected with the upper and lower groups of fans 5 under the action of the first spring 13, and the left fan 5 transports the air into the guide pipe 11 through the air guide cover 10. The air in the guide pipe 11 is divided into three parts through the three air pipes 12 and enters the dustproof frame 3. The gas entering the dustproof frame 3 is in the dustproof net 4 and multiple first airtight At the position between the sealing plates 6 (at this time, the multiple first sealing plates 6 are in a sealed state attached to each other), since the multiple first sealing plates 6 are in a sealed state, the air entering the dustproof frame 3 will pass through the dustproof net 4 from the inner end of the dustproof net 4, and the air will eventually be discharged from the dustproof frame 3 through the exhaust port 8 after passing through the dustproof net 4; since dust is usually attached to the outer part of the dustproof net 4, when the air passes through the dustproof net 4 from the inner side of the dustproof net 4, the dust attached to the dustproof net 4 can be effectively blown off, and the blown dust is discharged from the dustproof frame 3 through the exhaust port 8, thereby achieving the effect of cleaning the dust on the dustproof net 4.

[0041] like Figure 4-8 As shown, as a further solution of the present invention, the alternating mechanism includes a cylinder 21, the cylinder 21 is located at the rear side of the cabinet 1 and is fixedly connected to the cabinet 1, the telescopic end of the cylinder 21 is fixedly connected to a drive frame 22, and the drive frame 22 is symmetrically fixedly connected to two racks 23 on the left and right sides, the two racks 23 on the left are respectively fixedly connected to the two first push blocks 17 on the left, and the two racks 23 on the right are respectively fixedly connected to the two first push blocks 17 on the right; a group of fans 5 are symmetrically fixedly connected to gears 24 on the front and rear sides, and the racks 23 are meshed with the gears 24 on the upper and lower sides at the same time;

[0042] The gear 24 is a quarter gear 24 and the rack 23 is provided with teeth at both upper and lower sides, and the number of teeth on one side of the rack 23 is equal to the number of teeth on the gear 24;

[0043] During operation, when dust accumulates more on the three dustproof nets 4 on the right side, the cylinder 21 is started to drive the drive frame 22 to move leftward, the drive frame 22 drives the racks 23 on the left and right sides to move leftward, and the racks 23 drive the slide bar 14 connected thereto to slide leftward;

[0044] When the left slide bar 14 slides to the left, the second spring 16 and the second push block 19 will be gradually relaxed, and the second push block 19 will gradually lose its thrust. Under the action of the first spring 13, the upper and lower groups of air deflectors 10 will gradually move upward and downward respectively and separate from the upper and lower groups of fans 5; when the first push block 17 is separated from the second push block 19, the upper and lower groups of air deflectors 10 are completely separated from the upper and lower groups of fans 5. At this time, as the left slide bar 14 continues to slide, the rack 23 begins to mesh with the gears 24 on the upper and lower sides. Under the action of the rack 23, the upper and lower groups of fans 5 begin to rotate to the horizontal state at the same time; when the left rack 23 moves to the left to fit the inner wall of the cabinet 1, the upper and lower groups of fans 5 on the left Rotate 90 degrees to the horizontal state, and when the fan 5 is running, air enters from the left and is discharged from the right; when the left gear 24 is about to move to the leftmost position, the first spring 13 is completely relaxed and when the left slide bar 14 slides, the first spring 13 drives the sliding frame 15 to move to the left, and when the sliding frame 15 moves to the left, it drives the two second sealing plates 9 connected thereto to move, and the sealing plates begin to cover the exhaust port 8. At the same time, when the sliding frame 15 moves, the rotating rod 7 drives the first sealing plates 6 to rotate and open; when the rack 23 moves to the leftmost position, the second sealing plates 9 completely block the exhaust port 8 and all the first sealing plates 6 rotate to the horizontal state, and the dustproof frame 3 on the left is in a state of being connected to the inside of the cabinet 1;

[0045] When the right sliding rod 14 slides to the left, it will first drive the right sliding frame 15 to move to the left through the right first spring 13, and the sliding frame 15 will drive the two second sealing plates 9 connected thereto to move. When the second sealing plates 9 move, the exhaust port 8 will be gradually opened. At the same time, when the sliding frame 15 moves, it will drive the first sealing plate 6 on the right to rotate through the rotating rod 7, and the first sealing plate 6 will rotate from a horizontal state to a vertical state; in this process, the rack 23 drives the gears 24 on the upper and lower sides to rotate, and the upper and lower groups of fans 5 begin to rotate to a vertical state; when the right sliding frame 15 slides to a position that fits the cabinet 1, all the first sealing plates 6 on the right side rotate to a vertical state, and the two adjacent first sealing plates 6 fit each other, the right dustproof frame 3 is in a closed state, and the right exhaust port 8 is fully opened; as the rack 23 and the sliding rod continue to move the upper and lower groups of fans 5 Continue to rotate, when the rack 23 moves to the position disengaged from the gear 24, the upper and lower groups of fans 5 each rotate ninety degrees to become a vertical state, and when the upper fan 5 is running, the air enters from the bottom and is discharged from the top, and the lower fan 5 is the opposite; at the same time, the first push block 17 just fits with the second push block 19, as the rack 23 drives the first push block 17 to continue to move to the left, the second push block 19 is pushed to move to the left, and when the second push block 19 moves, it pulls the upper and lower groups of air guide covers 10 downward and upward respectively through the connecting rods 20 on the upper and lower sides; when the rack 23 moves to the leftmost position, the upper group of air guide covers 10 moves to the position docking with the upper group of fans 5, and the lower group of air guide covers 10 moves to the position docking with the lower group of fans 5. At this time, the wind blown out by the right fan 5 can be used to clean the three dustproof nets 4 in the right dustproof frame 3.

Claims

1. A protective structure for an electrical control cabinet, comprising a cabinet body (1), characterized in that: The cabinet (1) is provided with heat dissipation openings (2) symmetrically at left and right sides, and a dustproof frame (3) is fixedly connected to the cabinet (1) at a position outside the heat dissipation opening (2); A dustproof mechanism is provided in the dustproof frame (3), and the dustproof mechanism is used to filter out dust in the air when the outside air enters the cabinet (1) through the heat dissipation port (2); The cabinet (1) is provided with two heat dissipation mechanisms, which are respectively used to draw cold air from the outside into the cabinet (1) and to discharge hot air from the cabinet (1), and to blow away dust on the dust-proof mechanism at the exhaust end while discharging the air; An alternating mechanism is provided in the cabinet (1), and the alternating mechanism is used to drive the two heat dissipation mechanisms to exhaust air alternately to clean the dust on the dust-proof mechanisms on both sides.

2. The protective structure of an electrical control cabinet according to claim 1, characterized in that: The dustproof mechanism comprises three dustproof nets (4), the three dustproof nets (4) are equidistantly distributed in the dustproof frame (3), and the three dustproof nets (4) are all fixedly connected to the dustproof frame (3).

3. The protective structure of an electrical control cabinet according to claim 2, characterized in that: The heat dissipation mechanism comprises two groups of fans (5), and the two groups of fans (5) are symmetrically arranged at upper and lower sides of the heat dissipation opening (2) in the cabinet (1); one group of fans (5) comprises two fans (5) fixed to each other, and the front and rear ends of one group of fans (5) are rotatably connected to the cabinet (1); the two groups of fans (5) on the right side are horizontal, and when the fans (5) on the right side are in operation, air enters from the right side and is discharged from the left side; the two groups of fans (5) on the left side are vertical, and when the upper fans (5) are in operation, air enters from the lower side and is discharged from the upper side, and when the lower fans (5) are in operation, air enters from the upper side and is discharged from the lower side; each The dustproof net (4) is provided with a closing mechanism at a position close to the cabinet (1), and the closing mechanism is used to block the space on the side of the dustproof net (4) close to the cabinet (1) in the dustproof frame (3) and connect this part of the space to the outside; the cabinet (1) is symmetrically provided with a flow guiding mechanism at the left and right sides, and the flow guiding mechanism is used to guide the wind blown out by the vertically distributed fan (5) to the position between the three dustproof nets (4) and the three closing mechanisms in the dustproof frame (3); the dustproof frame (3) is provided with a driving mechanism at the front and rear sides, and the driving mechanism is used to drive the closing mechanism and the flow guiding mechanism to operate in sequence.

4. The protective structure of an electrical control cabinet according to claim 3, characterized in that: The sealing mechanism comprises a plurality of first sealing plates (6), the plurality of first sealing plates (6) are equidistantly distributed in the dustproof frame (3) from top to bottom and two adjacent first sealing plates (6) are in contact with each other; the first sealing plate (6) is rotatably connected to the dustproof frame (3) and a rotating rod (7) is symmetrically fixedly connected to the front and rear ends of the first sealing plate (6); an exhaust port (8) is provided at the front and rear sides of the dustproof frame (3) between the plurality of first sealing plates (6) and the dustproof net (4); a second sealing plate (9) is slidably connected to the dustproof frame (3) at a position outside the exhaust port (8), and the area of ​​the second sealing plate (9) is larger than the area of ​​the exhaust port (8).

5. The protective structure of an electrical control cabinet according to claim 4, characterized in that: The air guide mechanism comprises two groups of air guide covers (10), the two groups of air guide covers (10) are symmetrically distributed at the upper and lower sides of the two groups of fans (5), and one group of air guide covers (10) comprises two air guide covers (10) fixed to each other; an air guide pipe (11) is slidably connected inside the air guide cover (10), the air guide pipe (11) is fixedly connected to the cabinet (1), and the air guide pipe (11) is located on the outer part of the cabinet (1) and is fixedly connected to three air pipes (12), and the three air pipes (12) are all fixedly connected to the dustproof frame (3); the connection position of the air pipe (12) and the dustproof frame (3) is located between the dustproof net (4) and a plurality of first sealing plates (6) corresponding to the dustproof net (4); a first spring (13) is fixedly connected to one group of air guide covers (10), and the other end of the first spring (13) is fixedly connected to the cabinet (1).

6. The protective structure of an electrical control cabinet according to claim 5, characterized in that: The driving mechanism comprises two sliding bars (14), and the two sliding bars (14) are symmetrically distributed at the front and rear sides of the dustproof frame (3); the sliding bars (14) are slidably connected to the cabinet (1), and a sliding frame (15) is slidably connected to the sliding bar (14) located on the outer side of the cabinet (1); the sliding frame (15) and all the rotating bars (7) on the dustproof frame (3) close to the sliding frame (15) are clearance-matched, and the sliding frame (15) is fixedly connected to two second sealing plates (9) close to it; a second spring (16) is sleeved on the sliding bar (14), one end of the second spring (16) is fixedly connected to the sliding bar (14) and the other end is fixedly connected to the sliding bar (14). The sliding frame (15) is fixedly connected; the sliding rod (14) is located at one end inside the cabinet (1) and is fixedly connected with a first push block (17); a limit rod (18) is arranged inside the first push block (17); the limit rod (18) is fixedly connected with the cabinet (1); the first push block (17) is slidably connected with the limit rod (18) and a second push block (19) is slidably connected with the limit rod (18); the second push block (19) is symmetrically rotatably connected with a connecting rod (20) at the upper and lower ends; the upper end of the upper connecting rod (20) is rotatably connected with a group of air deflectors (10) on the upper side, and the lower end of the lower connecting rod (20) is rotatably connected with a group of air deflectors (10) on the lower side.

7. The protective structure of an electrical control cabinet according to claim 6, characterized in that: The alternating mechanism comprises a cylinder (21), the cylinder (21) is located at the rear side of the cabinet (1) and is fixedly connected to the cabinet (1), the telescopic end of the cylinder (21) is fixedly connected to a driving frame (22), the driving frame (22) is symmetrically fixedly connected to two racks (23) on the left and right sides, the two racks (23) on the left are respectively fixedly connected to the two first push blocks (17) on the left, and the two racks (23) on the right are respectively fixedly connected to the two first push blocks (17) on the right; a group of the fans (5) are symmetrically fixedly connected to gears (24) on the front and rear sides, and the racks (23) are simultaneously meshed with the gears (24) on the upper and lower sides.

8. The protective structure of an electrical control cabinet according to claim 7, characterized in that: The gear (24) is a quarter gear (24) and teeth are provided at both upper and lower sides of the rack (23), and the number of teeth on one side of the rack (23) is equal to the number of teeth on the gear (24).

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