A protective structure for an electrical control cabinet

Abstract

The present invention discloses a protection structure for an electrical control cabinet in the technical field of electrical control cabinets, including a cabinet body. Heat dissipation openings are symmetrically arranged at the left and right positions on the cabinet body, and a dust-proof frame is fixedly connected to the outside of the heat dissipation openings on the cabinet body; Two heat dissipation mechanisms are arranged in the cabinet body. The two heat dissipation mechanisms are respectively used to suck outside cold air into the cabinet body and discharge the hot air in the cabinet body. While discharging the air, the dust on the dust-proof mechanism at the exhaust end is blown away; An alternating mechanism is arranged in the cabinet body. The alternating mechanism is used to drive the two heat dissipation mechanisms to alternately exhaust and clean the dust on the dust-proof mechanisms on both sides; The device can drive the two heat dissipation mechanisms to alternately draw air and exhaust air through the alternating mechanism. When the heat dissipation mechanism exhausts air, the dust attached to the dust-proof mechanism can be blown off, so that while ensuring the heat dissipation in the cabinet body, the dust can be automatically cleaned, ensuring the dust-proof effect of the cabinet body.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical control cabinets, and particularly to a protection structure for an electrical control cabinet. Background Technique

[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, a large amount of heat is generated by the electronic components inside it. Therefore, a lot of heat dissipation openings are usually provided on the surface of the electrical control cabinet. Since there is a large amount of dust in the air at construction sites, this dust will enter the electrical control cabinet through the heat dissipation openings of the electrical control cabinet, causing damage to the electronic components inside the electrical control cabinet; although the existing electrical control cabinets can effectively block dust from entering the electrical control cabinet by adding dust-proof nets, over time, the dust will clog the dust-proof nets, thus affecting the heat dissipation effect of the electrical control cabinet and also damaging the electronic components inside the electrical control cabinet. Summary of the Invention

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

[0004] To achieve the above purpose, the present invention provides the following technical solution: A protection structure for an electrical control cabinet, including a cabinet body, heat dissipation openings are symmetrically provided at the left and right sides of the cabinet body, and a dust-proof frame is fixedly connected to the outside of the cabinet body at the positions of the heat dissipation openings.

[0005] A dust-proof mechanism is provided inside the dust-proof frame, and the dust-proof mechanism is used to filter out the dust in the air when the outside air enters the cabinet body through the heat dissipation openings.

[0006] Two heat dissipation mechanisms are provided inside the cabinet body, and the two heat dissipation mechanisms are respectively used to suck the outside cold air into the cabinet body and discharge the hot air inside the cabinet body, and at the same time blow away the dust on the dust-proof mechanism at the exhaust end when discharging the air.

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

[0008] Preferably, the dust-proof mechanism includes three dust-proof nets, and the three dust-proof nets are equidistantly distributed inside the dust-proof frame and all three dust-proof nets are fixedly connected to the dust-proof frame.

[0009] Preferably, the heat dissipation mechanism includes two groups of fans, which are symmetrically arranged on the upper and lower sides of the heat dissipation openings in the cabinet; one group of the fans includes two fixedly connected fans, and both the front and rear ends of one group of the fans are rotatably connected to the cabinet; the two groups of fans on the right side are horizontal, and when the right-side fans operate, 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-side fan operates, air enters from the lower side and is discharged from the upper side, and when the lower-side fan operates, air enters from the upper side and is discharged from the lower side; a closing mechanism is provided at a position close to the cabinet side of each dust-proof net, and the closing mechanism is used to block the space on the side of the dust-proof net in the dust-proof frame close to the cabinet and connect this part of the space to the outside; flow guiding mechanisms are symmetrically arranged at the left and right positions in the cabinet, and the flow guiding mechanisms are used to guide the air blown out by the vertically arranged fans to the position between the three dust-proof nets and the three closing mechanisms in the dust-proof frame; driving mechanisms are provided at the front and rear positions of the dust-proof frame, and the driving mechanisms are used to drive the closing mechanism and the flow guiding mechanism to operate successively.

[0010] Preferably, the closing mechanism includes a plurality of first sealing plates, and the plurality of first sealing plates are equidistantly distributed from top to bottom in the dust-proof frame and two adjacent first sealing plates are in contact with each other; the first sealing plates are rotatably connected to the dust-proof frame, and rotating rods are symmetrically and fixedly connected to the front and rear ends of the first sealing plates; exhaust ports are formed at the front and rear positions on the dust-proof frame between the plurality of first sealing plates and the dust-proof net, and a second sealing plate is slidably connected to the position outside the exhaust ports on the dust-proof frame, and the area of the second sealing plate is larger than that of the exhaust ports.

[0011] Preferably, the flow guiding mechanism includes two groups of flow guiding covers, and the two groups of flow guiding covers are symmetrically distributed on the upper and lower sides of the two groups of fans. One group of the flow guiding covers includes two fixedly connected flow guiding covers; a flow guiding pipe is slidably connected in the flow guiding cover, the flow guiding pipe is fixedly connected to the cabinet, and three air pipes are fixedly connected to the part of the flow guiding pipe located outside the cabinet. All the three air pipes are fixedly connected to the dust-proof frame; the connection position of the air pipe and the dust-proof frame is located between the dust-proof net and the corresponding plurality of first sealing plates; a first spring is fixedly connected to one group of the flow guiding covers, and the other end of the first spring is fixedly connected to the cabinet.

[0012] Preferably, the driving mechanism includes two sliding rods symmetrically distributed on the front and rear sides of the dust-proof frame; the sliding rods are slidably connected to the cabinet body, and a sliding frame is slidably connected to the part of the sliding rods outside the cabinet body. The sliding frame is in clearance fit with all the rotating rods on the side of the dust-proof frame close to the sliding frame, and the sliding frame is fixedly connected to the two second sealing plates close to it; a second spring is sleeved on the sliding rods, one end of the second spring is fixedly connected to the sliding rods and the other end is fixedly connected to the sliding frame; a first push block is fixedly connected to one end of the sliding rod inside the cabinet body, a limiting rod is arranged in the first push block, and the limiting rod is fixedly connected to the cabinet body; the first push block is slidably connected to the limiting rod, and a second push block is slidably connected to the limiting rod. The upper and lower ends of the second push block are symmetrically and rotatably connected with connecting rods. The upper end of the upper connecting rod is rotatably connected to the upper group of diversion covers, and the lower end of the lower connecting rod is rotatably connected to the lower group of diversion covers.

[0013] Preferably, the alternating mechanism includes a cylinder located at the rear side inside the cabinet body and fixedly connected to the cabinet body. The telescopic end of the cylinder is fixedly connected to a driving frame, and two racks are symmetrically and fixedly connected to the left and right sides of the driving frame. The two left racks are respectively fixedly connected to the two left first push blocks, and the two right racks are respectively fixedly connected to the two right first push blocks; gears are symmetrically and fixedly connected to the front and rear sides of a group of fans, and the racks are simultaneously meshed with the upper and lower gears.

[0014] Preferably, the gears are quarter gears, and tooth teeth are arranged on both the upper and lower sides of the racks. The number of tooth teeth on one side of the rack is equal to the number of tooth teeth on the gear.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By starting two heat dissipation mechanisms, one heat dissipation mechanism extracts cold air from the outside into the cabinet body through one side of the heat dissipation port, and the other heat dissipation mechanism discharges the hot air in the cabinet body from the other side of the heat dissipation port, so as to achieve the effect of cooling the cabinet body.

[0017] 2. The dust-proof mechanism in the dust-proof frame can effectively filter out the dust in the outside air and prevent the dust from entering the cabinet body; since the dust-proof mechanism filters dust for a long time, the dust will adhere to the dust-proof mechanism. At this time, the alternating mechanism can drive the two heat dissipation mechanisms to alternately draw air and exhaust air. When the heat dissipation mechanism exhausts air, it can blow off the dust adhering to the dust-proof mechanism, so as to automatically clean the dust while ensuring the heat dissipation in the cabinet body and ensuring the dust-proof effect of the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 Schematic diagram of the rear view structure of the present invention;

[0020] Figure 3 Schematic diagram of the sectional structure of the present invention;

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

[0022] Figure 5 Schematic diagram of the structure of the heat dissipation mechanism in the present invention;

[0023] Figure 6 Schematic diagram of the split structure of the heat dissipation mechanism in the present invention;

[0024] Figure 7 Schematic diagram of the structure of the driving mechanism in the present invention;

[0025] Figure 8 Schematic diagram of the structure of the dust-proof mechanism in the present invention.

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

[0027] 1, cabinet body; 2, heat dissipation port; 3, dust-proof frame; 4, dust-proof net; 5, fan; 6, first sealing plate; 7, rotating rod; 8, exhaust port; 9, second sealing plate; 10, flow guide cover; 11, flow 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 implementation manners

[0028] Please refer to Figures 1-8 , the present invention provides a technical solution: a protection structure for an electrical control cabinet, including a cabinet body 1, heat dissipation ports 2 are symmetrically arranged on the left and right sides of the cabinet body 1, and a dust-proof frame 3 is fixedly connected to the outside of the cabinet body 1 at the position of the heat dissipation ports 2;

[0029] A dust-proof mechanism is arranged in the dust-proof frame 3, and the dust-proof mechanism is used to filter out the dust in the air when the outside air enters the cabinet body 1 through the heat dissipation ports 2;

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

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

[0032] During operation, when working in the electrical control cabinet, a large amount of heat is generated by the internal electronic components. At this time, two heat dissipation mechanisms are activated. One heat dissipation mechanism extracts cold air from the outside through the heat dissipation port 2 on one side into the cabinet body 1, and the other heat dissipation mechanism discharges the hot air in the cabinet body 1 from the heat dissipation port 2 on the other side, so as to achieve the effect of cooling the inside of the cabinet body 1;

[0033] When the outside air enters the cabinet body 1, the dust in the outside air can be effectively filtered out by the dust prevention mechanism in the dust prevention frame 3, preventing dust from entering the cabinet body 1; Since the dust prevention mechanism filters dust for a long time, dust will adhere to the dust prevention mechanism. At this time, the alternating mechanism can drive the two heat dissipation mechanisms to alternately draw air and exhaust air. When the heat dissipation mechanism exhausts air, the dust adhering to the dust prevention mechanism can be blown off, so that while ensuring the heat dissipation inside the cabinet body 1, the dust can be automatically cleaned, ensuring the dust prevention effect of the cabinet body 1.

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

[0035] During operation, when the outside air enters the cabinet body 1, it will pass through the three dust-proof nets 4. Through the three dust-proof nets 4, the dust prevention effect of the cabinet body 1 can be further improved, and dust can be effectively prevented from entering the cabinet body 1.

[0036] As Figures 5-7 shown, as a further solution of the present invention, the heat dissipation mechanism includes two groups of fans 5, and the two groups of fans 5 are symmetrically arranged on the upper and lower sides of the heat dissipation port 2 in the cabinet body 1; One group of fans 5 includes two mutually fixed fans 5, and both the front and rear ends of one group of fans 5 are rotatably connected to the cabinet body 1; The two groups of fans 5 on the right side are horizontal, and when the fans 5 on the right side operate, 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. When the upper fan 5 on the left side operates, air enters from the lower side and is discharged from the upper side. When the lower fan 5 on the left side operates, air enters from the upper side and is discharged from the lower side; A closing mechanism is provided at a position close to the cabinet body 1 side of each dust-proof net 4. The closing mechanism is used to block the space on the side of the dust-proof net 4 in the dust prevention frame 3 close to the cabinet body 1 and connect this part of the space to the outside; Flow guiding mechanisms are symmetrically arranged at the left and right positions in the cabinet body 1. The flow guiding mechanisms are used to guide the air 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 prevention frame 3; Driving mechanisms are provided at the front and rear positions of the dust prevention frame 3. The driving mechanisms are used to drive the closing mechanism and the flow guiding mechanism to operate successively;

[0037] The closing mechanism includes a plurality of first sealing plates 6, which are equidistantly distributed from top to bottom in the dust-proof frame 3 and two adjacent first sealing plates 6 are in contact with each other; the first sealing plate 6 is rotatably connected to the dust-proof frame 3 and rotating rods 7 are symmetrically and fixedly connected to the front and rear ends of the first sealing plate 6; exhaust ports 8 are provided at the front and rear positions of the dust-proof frame 3 between the plurality of first sealing plates 6 and the dust-proof net 4, and a second sealing plate 9 is slidably connected to the outer side of the exhaust port 8 on the dust-proof frame 3, and the area of the second sealing plate 9 is larger than the area of the exhaust port 8;

[0038] The guiding mechanism includes two groups of guiding covers 10, which are symmetrically distributed on the upper and lower sides of the two groups of fans 5. One group of guiding covers 10 includes two fixedly connected guiding covers 10; a guiding pipe 11 is slidably connected in the guiding cover 10, the guiding pipe 11 is fixedly connected to the cabinet body 1 and three air pipes 12 are fixedly connected to the part of the guiding pipe 11 outside the cabinet body 1, and all three air pipes 12 are fixedly connected to the dust-proof frame 3; the connection position of the air pipe 12 and the dust-proof frame 3 is between the dust-proof net 4 and the corresponding plurality of first sealing plates 6; a first spring 13 is fixedly connected to one group of guiding covers 10, and the other end of the first spring 13 is fixedly connected to the cabinet body 1;

[0039] The driving mechanism includes two sliding rods 14, which are symmetrically distributed on the front and rear sides of the dust-proof frame 3; the sliding rod 14 is slidably connected to the cabinet body 1 and a sliding frame 15 is slidably connected to the part of the sliding rod 14 outside the cabinet body 1. The sliding frame 15 has a clearance fit with all the rotating rods 7 on the side of the dust-proof frame 3 close to the sliding frame 15, and the sliding frame 15 is fixedly connected to the two adjacent second sealing plates 9; a second spring 16 is sleeved on the sliding rod 14, one end of the second spring 16 is fixedly connected to the sliding rod 14 and the other end is fixedly connected to the sliding frame 15; a first push block 17 is fixedly connected to one end of the sliding rod 14 inside the cabinet body 1, a limiting rod 18 is arranged in the first push block 17, and the limiting rod 18 is fixedly connected to the cabinet body 1; the first push block 17 is slidably connected to the limiting rod 18 and a second push block 19 is slidably connected to the limiting rod 18. The upper and lower ends of the second push block 19 are symmetrically and rotatably connected to connecting rods 20. The upper end of the upper connecting rod 20 is rotatably connected to the upper group of guiding covers 10, and the lower end of the lower connecting rod 20 is rotatably connected to the lower group of guiding covers 10;

[0040] During operation, when the left and right fans 5 are started, the two sets of fans 5 on the right side draw the outside air into the cabinet 1 through the three-layer dust-proof net 4 on the right side, and the two sets of fans 5 on the left side respectively transport the air in the cabinet 1 upward and downward; the upper and lower flow guiding covers 10 are tightly butted against the upper and lower sets of fans 5 respectively under the action of the first springs 13. The left fan 5 transports the air into the flow guiding pipe 11 through the flow guiding cover 10, and the air in the flow guiding pipe 11 is divided into three parts through the three air pipes 12 and enters the dust-proof frame 3. The gas entering the dust-proof frame 3 is located between the dust-proof net 4 and the multiple first sealing plates 6 (at this time, the multiple first sealing plates 6 are in a mutually attached sealing state). Since the multiple first sealing plates 6 are in a sealed state, the air entering the dust-proof frame 3 will pass through the dust-proof net 4 from the inner end of the dust-proof net 4. After passing through the dust-proof net 4, the air will finally be discharged from the dust-proof frame 3 through the exhaust port 8; since dust usually adheres to the outer part of the dust-proof net 4, when the air passes through the dust-proof net 4 from the inside, the dust attached to the dust-proof net 4 can be effectively blown off, and the blown-off dust is discharged from the dust-proof frame 3 through the exhaust port 8, so that the dust on the dust-proof net 4 can be cleaned up.

[0041] As Figures 4-8 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 inside the cabinet 1 and is fixedly connected to the cabinet 1. A driving frame 22 is fixedly connected to the telescopic end of the cylinder 21. Two racks 23 are symmetrically and fixedly connected to the left and right sides of the driving frame 22. The two racks 23 on the left side are respectively fixedly connected to the two first push blocks 17 on the left side, and the two racks 23 on the right side are respectively fixedly connected to the two first push blocks 17 on the right side; two gears 24 are symmetrically and fixedly connected to the front and rear sides of a set of fans 5, and the rack 23 meshes with the upper and lower gears 24 at the same time;

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

[0043] During operation, when the dust accumulates more on the three dust-proof nets 4 on the right side, the cylinder 21 is started at this time to drive the driving frame 22 to move to the left. The driving frame 22 drives the racks 23 on the left and right sides to move to the left, and the racks 23 drive the sliding rods 14 connected thereto to slide to the left;

[0044] When the left slide bar 14 slides to the left, it will gradually relax the second spring 16 and the second push block 19. The second push block 19 will gradually lose the thrust, and the upper and lower groups of air deflectors 10 will gradually move upward and downward respectively under the action of the first spring 13 and disengage from the upper and lower groups of fans 5; when the first push block 17 disengages 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 engage 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 position where it fits against the inner wall of the cabinet body 1, the upper and lower groups of left fans 5 rotate 90 degrees to the horizontal state, and when the fans 5 operate, 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 will drive the sliding frame 15 to move to the left through the first spring 13 when the left slide bar 14 slides. When the sliding frame 15 moves to the left, it drives the two second sealing plates 9 connected to it. The sealing plates begin to cover the exhaust port 8, and at the same time, when the sliding frame 15 moves, it will drive the first sealing plate 6 to rotate and open through the rotating rod 7; when the rack 23 moves to the leftmost position, the second sealing plate 9 completely blocks the exhaust port 8 and all the first sealing plates 6 rotate to the horizontal state, and the dust-proof frame 3 on the left is in a state of being connected to the inside of the cabinet body 1;

[0045] When the right slide bar 14 slides to the left, it will first drive the slide frame 15 on the right to move to the left through the first spring 13 on the right. The slide frame 15 drives the two second sealing plates 9 connected to it to move. When the second sealing plates 9 move, they will gradually open the exhaust port 8. At the same time, when the slide frame 15 moves, it drives the first sealing plate 6 on the right to rotate through the rotating rod 7, and the first sealing plate 6 starts to rotate from the horizontal state to the vertical state; during this process, the rack 23 drives the upper and lower gears 24 to rotate, and the upper and lower groups of fans 5 start to rotate to the vertical state; when the slide frame 15 on the right slides to the position where it fits with the cabinet body 1, all the first sealing plates 6 on the right rotate to the vertical state, and two adjacent first sealing plates 6 fit together, the right dust-proof frame 3 is in the closed state and the exhaust port 8 on the right is completely opened; as the rack 23 and the slide bar continue to move, the upper and lower groups of fans 5 continue to rotate. When the rack 23 moves to the position where it disengages from the gear 24, the upper and lower groups of fans 5 each rotate 90 degrees to become vertical. When the upper fan 5 operates, air enters from the bottom and exits from the top, and the lower fan 5 is opposite to it; 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 moving to the left, the second push block 19 is pushed to move to the left. When the second push block 19 moves, it respectively pulls the upper and lower groups of flow deflectors 10 downwards and upwards through the connecting rods 20 on the upper and lower sides; when the rack 23 moves to the leftmost position, the upper group of flow deflectors 10 moves to the position where it is docked with the upper group of fans 5, and the lower group of flow deflectors 10 moves to the position where it is docked with the lower group of fans 5. At this time, the air blown by the right fan 5 can be used to clean the three dust-proof nets 4 in the right dust-proof frame 3.

Claims

1. A protective structure for an electrical control cabinet, comprising a cabinet body (1), characterized in that: On the left and right sides of the cabinet body (1) are symmetrically provided with heat dissipation openings (2), and on the cabinet body (1) at the outer side of the heat dissipation openings (2) is fixedly connected with a dust-proof frame (3); Inside the dust-proof frame (3) is provided with a dust-proof mechanism, which is used to filter out the dust in the air when the outside air enters the cabinet body (1) through the heat dissipation openings (2); Inside the cabinet body (1) are provided with two heat dissipation mechanisms, which are respectively used to suck the outside cold air into the cabinet body (1) and discharge the hot air inside the cabinet body (1), and at the same time blow away the dust on the dust-proof mechanism at the exhaust end when discharging the air; Inside the cabinet body (1) is provided with an alternating mechanism, which is used to drive the two heat dissipation mechanisms to alternately exhaust air to clean the dust on the dust-proof mechanisms on both sides; The dust-proof mechanism includes three dust-proof nets (4), and the three dust-proof nets (4) are equidistantly distributed in the dust-proof frame (3) and all three dust-proof nets (4) are fixedly connected with the dust-proof frame (3); The heat dissipation mechanism includes two groups of fans (5), and the two groups of fans (5) are symmetrically arranged on the upper and lower sides of the heat dissipation openings (2) inside the cabinet body (1); one group of the fans (5) includes two mutually fixed fans (5) and both the front and rear ends of one group of the fans (5) are rotatably connected with the cabinet body (1); the two groups of fans (5) on the right side are horizontal, and when the fans (5) on the right side operate, the 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 fan (5) operates, the air enters from the lower side and is discharged from the upper side, and when the lower fan (5) operates, the air enters from the upper side and is discharged from the lower side; at the position on the side of each dust-proof net (4) close to the cabinet body (1) is provided with a closing mechanism, which is used to block the space on the side of the dust-proof net (4) in the dust-proof frame (3) close to the cabinet body (1) and connect the space on the side of the dust-proof net (4) in the dust-proof frame (3) close to the cabinet body (1) with the outside; on the left and right sides inside the cabinet body (1) are symmetrically provided with a diversion mechanism, which is used to guide the air 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); at the front and rear sides of the dust-proof frame (3) is provided with a driving mechanism, which is used to drive the closing mechanism and the diversion mechanism to operate successively; The closing mechanism includes a plurality of first sealing plates (6), and the plurality of first sealing plates (6) are equidistantly distributed from top to bottom in the dust-proof frame (3) and two adjacent first sealing plates (6) are in mutual contact; the first sealing plate (6) is rotatably connected with the dust-proof frame (3) and symmetrically fixedly connected with rotating rods (7) at both the front and rear ends of the first sealing plate (6); at the front and rear sides of the dust-proof frame (3) at the position between the plurality of first sealing plates (6) and the dust-proof net (4) are provided with exhaust openings (8), and on the dust-proof frame (3) at the outer side of the exhaust openings (8) is slidably connected with a second sealing plate (9), and the area of the second sealing plate (9) is larger than the area of the exhaust openings (8); The air guiding mechanism includes two groups of air guiding covers (10), and the two groups of air guiding covers (10) are symmetrically distributed on the upper and lower sides of the two groups of fans (5). One group of air guiding covers (10) includes two fixedly connected air guiding covers (10); a air guiding pipe (11) is slidably connected inside the air guiding cover (10), the air guiding pipe (11) is fixedly connected to the cabinet body (1), and three air pipes (12) are fixedly connected to the part of the air guiding pipe (11) located outside the cabinet body (1). All three air pipes (12) are fixedly connected to the dust-proof frame (3); the connection position between the air pipe (12) and the dust-proof frame (3) is located between the dust-proof net (4) and a plurality of first sealing plates (6) corresponding to the dust-proof net (4); a first spring (13) is fixedly connected to one group of air guiding covers (10), and the other end of the first spring (13) is fixedly connected to the cabinet body (1).

2. The protective structure of an electrical control cabinet according to claim 1, wherein: The driving mechanism includes two sliding rods (14), and the two sliding rods (14) are symmetrically distributed on the front and rear sides of the dust-proof frame (3); the sliding rods (14) are slidably connected to the cabinet body (1), and a sliding frame (15) is slidably connected to the part of the sliding rod (14) located outside the cabinet body (1). The sliding frame (15) is in clearance fit with all the rotating rods (7) on the side of the dust-proof frame (3) close to the sliding frame (15), 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 rod (14), one end of the second spring (16) is fixedly connected to the sliding rod (14), and the other end is fixedly connected to the sliding frame (15); a first push block (17) is fixedly connected to one end of the sliding rod (14) located inside the cabinet body (1), a limiting rod (18) is arranged inside the first push block (17), and the limiting rod (18) is fixedly connected to the cabinet body (1); the first push block (17) is slidably connected to the limiting rod (18), and a second push block (19) is slidably connected to the limiting rod (18). The upper and lower ends of the second push block (19) are symmetrically and rotatably connected with connecting rods (20). The upper end of the upper connecting rod (20) is rotatably connected to the upper group of air guiding covers (10), and the lower end of the lower connecting rod (20) is rotatably connected to the lower group of air guiding covers (10).

3. The protective structure of an electrical control cabinet according to claim 2, characterized in that: The alternating mechanism includes a cylinder (21). The cylinder (21) is located at the rear side inside the cabinet body (1) and is fixedly connected to the cabinet body (1). A driving frame (22) is fixedly connected to the telescopic end of the cylinder (21). Two racks (23) are symmetrically fixedly connected to the left and right sides of the driving frame (22). The two left racks (23) are respectively fixedly connected to the two left first push blocks (17), and the two right racks (23) are respectively fixedly connected to the two right first push blocks (17); two gears (24) are symmetrically fixedly connected to the front and rear sides of one group of fans (5), and the racks (23) are simultaneously meshed with the upper and lower gears (24).

4. The protective structure of an electric control cabinet according to claim 3, characterized in that: The gear (24) is a quarter gear (24), and teeth are provided on both the upper and lower sides of the rack (23). The number of teeth on one side of the rack (23) is equal to the number of teeth on the gear (24).

Images