Low-voltage capacitor cabinet

Abstract

The invention provides a low-voltage capacitor cabinet, and relates to the field of electrical cabinets. The low-voltage capacitor cabinet comprises a cabinet body, the two sides of the cabinet body are fixedly provided with mounting blocks, the upper ends of the two mounting blocks are fixedly provided with electric push rods, the output ends of the two electric push rods are fixedly connected with a connecting frame, and the bottoms of the two ends of the connecting frame are fixedly connected with mounting plates. Heat dissipation fans are fixedly arranged on one sides of the two mounting plates, connecting plates are fixedly arranged at one ends of the two heat dissipation fans, moving columns are slidably arranged in the two connecting plates, sealing covers are fixedly arranged at one ends of the two moving columns, and springs are arranged on the outer walls, between the sealing covers and the connecting plates, of the two moving columns in a sleeving mode. According to the device, by arranging the sealing device, the image acquisition structure and other structures, the problem that fire breaks out in the cabinet body can be found in the first time, the air extractor is started, air in the cabinet body is extracted, then flame combustion is stopped, and large-range combustion after fire is avoided.

Description

Technical Field

[0001] The invention relates to the field of electrical cabinets, in particular to a low-voltage capacitor cabinet. Background Art

[0002] Most of the load types in the power system are inductive loads, and the widespread use of power electronic equipment by power users makes the power factor of the power grid low. The low power factor reduces the equipment utilization rate, increases the power supply investment, damages the voltage quality, reduces the service life of the equipment, and greatly increases the line loss. Therefore, by connecting the capacitor compensation cabinet to the power system, the inductive load can be balanced, the power factor can be improved, and the utilization rate of the equipment can be improved. The low-voltage capacitor cabinet is a commonly used power compensation equipment. The low-voltage capacitor cabinet is a commonly used power compensation equipment. The working voltage of the low-voltage capacitor cabinet is generally 220V or 380V. Compared with the high voltage of thousands of volts or more than 660V in the power system, this voltage is called low voltage. The main components in the low-voltage capacitor cabinet are compensation capacitors. In addition, they also include reactors, lightning arresters, circuit breakers, power factor automatic compensation control devices, disconnectors, thermal relays, panel meters, etc. The low-voltage capacitor cabinet eliminates the reactive power on the power grid through capacitors connected to the power grid to achieve power factor adjustment. When the load power factor in the power grid is lower than 1 (i.e., there is more reactive power), the capacitor on the capacitor cabinet is connected to the power grid by controlling the switch, thereby improving the power factor of the power grid. When the load power factor reaches the required value, the capacitor is disconnected from the power grid by adjusting the switch. The capacitor is connected in series to the power grid, and its series capacitor will form a resonant circuit that resonates with the inductor, thereby compensating for the reactive power generated by the inductor.

[0003] After searching, the existing patent (publication number: XCN116202887A) discloses a low-voltage capacitor cabinet strength detection device, including a detection frame placed inside the capacitor cabinet, a distortion detection unit for detecting its anti-distortion degree is set up in the detection frame corresponding to the position of the L-shaped frame, and the front of the detection frame is provided with a deformation detection unit for testing the deformation degree of the cabinet door after bearing load and repeated opening and closing. When the force frame of the present invention moves to the detection point position on the L-shaped frame, the locking part can automatically fix the force frame and the L-shaped frame together, so as to accurately align to the detection position on the L-shaped frame for detection; and the present invention can automatically and continuously detect the detection position on the L-shaped frame through the electric slider, thereby increasing the detection efficiency; the present invention adopts a force guide rod as a guide, which can always apply a vertical detection force to the force frame, thereby reducing the detection error.

[0004] Although the patented technology can increase the detection efficiency and always apply a vertical detection force to the force frame to reduce the detection error, the device is not equipped with a protective device. When used for a long time, it is inevitable that the capacitor cabinet will catch fire due to leakage or high-load operation, old lines, etc., causing large-scale resource damage. Therefore, those skilled in the art provide a low-voltage capacitor cabinet to solve the problems raised in the above background technology. Summary of the invention

[0005] 1. Technical problems solved In view of the deficiencies of the prior art, the present invention provides a low-voltage capacitor cabinet, which solves the problem of reducing the losses caused by a fire in the capacitor cabinet.

[0006] 2. Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A low-voltage capacitor cabinet comprises a cabinet body, mounting blocks are fixedly arranged on both sides of the cabinet body, electric push rods are fixedly arranged on the upper ends of the two mounting blocks, the output ends of the two electric push rods are fixedly connected to connection frames, the bottoms of both ends of the connection frames are fixedly connected to mounting plates, cooling fans are fixedly arranged on one side of the two mounting plates, connecting plates are fixedly arranged on one end of the two cooling fans, moving columns are slidably arranged inside the two connecting plates, sealing covers are fixedly arranged on one end of the two moving columns, and springs are sleeved on the outer walls of the two moving columns between the sealing covers and the connecting plates; A mounting frame is fixedly provided at one end of the inner wall of the cabinet, an industrial camera is fixedly provided at the bottom end of the mounting frame, a lens is threadedly connected to the bottom end of the industrial camera, a processor, a controller and an exhaust device are fixedly provided at the upper end of the cabinet, and an exhaust pipe is fixedly provided at one end of the exhaust device; Through the above technical scheme, the device is equipped with a closing device and image acquisition structures, and can detect the inside of the cabinet in real time through an industrial camera. When a fire occurs inside the cabinet due to leakage, high-load operation, aging of the line, etc., it can be discovered at the first time. After the discovery, the controller sends a signal to the electric push rod, the electric push rod rises and then drives the mounting plate to rise, and the heat dissipation device is moved. At the same time, the cover rises. Through the setting of the spring, when the cover is opposite to the ventilation hole, one side of the cover loses the squeeze on the spring, the spring recovers its deformation, and the cover enters the ventilation hole accordingly, and then the exhaust device is started to extract the air inside the cabinet, so that the air inside the cabinet is reduced, thereby blocking the burning of the flame, avoiding large-scale burning after the fire, and reducing resource waste.

[0007] Furthermore, a cabinet door is fixedly provided on one side of the cabinet body via a rotating hinge, and a handle is fixedly provided on one side of the cabinet door; Through the above technical solution, the cabinet body is closed by arranging the cabinet door, and the cabinet door can be conveniently opened and closed by the handle.

[0008] Furthermore, bearing seats are fixedly arranged at both upper and lower ends of one side of the cabinet door, a screw rod is fixedly arranged between the two bearing seats, and a slider is threadedly connected to the outer wall of the screw rod; Through the above technical solution, the slider can move on the screw rod, which is a movable structure in the auxiliary device. By setting the movable structure, the up and down movement of the rotating frame is convenient, thereby facilitating the power off and power on of the switch of the electrical component.

[0009] Furthermore, a fixed block is fixedly arranged on one side of the sliding block, a rotating frame is rotatably arranged inside the fixed block, a fixed column is fixedly arranged inside the rotating frame, and a telescopic column is slidably arranged on the outer wall of the fixed column; Through the above technical solution, the fixed block is connected to the slider, and the rotating frame is rotatably connected to the fixed block, so moving the fixed block can move the rotating frame, and the rotating frame can be rotated through the rotating connection. When the cabinet door is opened again, the position of the telescopic column slidably connected to the fixed column can be changed by rotating the rotating frame.

[0010] Furthermore, two toggle blocks are fixedly provided at the output end of the telescopic column; Through the above technical solution, the toggle block is used to toggle the switch of the electrical component in the capacitor cabinet, the height of the telescopic column is changed by the screw rod, and the left and right of the telescopic column is changed by the fixed column. When the toggle block is at the upper and lower ends of the switch, the height of the telescopic column is changed by the screw rod, thereby completing the control of the switch of the electrical component.

[0011] Furthermore, ventilation holes are provided at both ends of the cabinet, and the two ventilation holes correspond to the mounting plate; Through the above technical solution, the heat dissipation fan is fixedly arranged on one side of the mounting plate, and the mounting plate corresponds to the ventilation hole, that is, the heat dissipation fan corresponds to the ventilation hole, so as to cool down the inside of the cabinet, which can effectively reduce the temperature inside the cabinet and reduce the dangerous situation caused by the high temperature inside the cabinet.

[0012] Furthermore, a rubber pad is fixedly provided on one side of the two sealing covers; Through the above technical solution, the rubber pad can improve the sealing between the cover and the ventilation hole, can improve the exhaust effect of the exhaust device, ensure the negative pressure environment inside the cabinet, and effectively block the combustion chain reaction of the flame.

[0013] Furthermore, the rotating frame, the fixed column and the telescopic column are all made of non-conductive materials; Through the above technical solution, by using an auxiliary device to cut off the power, when the device leaks electricity, the power-off device made of non-conductive material can reduce the damage to the operator.

[0014] 3. Beneficial effects The present invention provides a low-voltage capacitor cabinet. It has the following beneficial effects: 1. The present invention provides a low-voltage capacitor cabinet. The device is provided with a sealing device and an image acquisition structure, and can detect the inside of the cabinet in real time through an industrial camera. When a fire occurs inside the cabinet due to leakage, high-load operation, old lines, etc., it can be discovered at the first time. After the discovery, the controller sends a signal to the electric push rod, and the electric push rod rises and drives the mounting plate to rise, so as to move the heat dissipation device. At the same time, the cover rises. Through the setting of the spring, when the cover is opposite to the ventilation hole, one side of the cover loses the compression of the spring, the spring recovers its deformation, and the cover enters the ventilation hole accordingly. Then the exhaust device is started to extract the air inside the cabinet, so that the air inside the cabinet is reduced, thereby reducing the conditions required for the combustion of the flame, thereby blocking the combustion of the flame, avoiding large-scale combustion after the fire, and reducing resource waste.

[0015] 2. The present invention provides a low-voltage capacitor cabinet, which is composed of auxiliary devices by arranging structures such as a screw rod, a slider, a fixed block, a rotating frame, a fixed column, a telescopic column and a toggle block. In the daily use of the capacitor cabinet, if no problems occur, most of the people who operate it are not professionals. Therefore, when leakage occurs inside the capacitor cabinet, it will cause harm to non-professionals. By arranging an auxiliary device and making the auxiliary device using non-conductive materials, the electrical components in the capacitor cabinet can be powered off through the arrangement, which can reduce the risk of electric shock injuries to the staff.

[0016] 3. The present invention provides a low-voltage capacitor cabinet, which uses an industrial camera to perform real-time detection of the interior of the cabinet, so that problems inside the cabinet can be discovered more quickly and can be dealt with in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the heat dissipation and sealing structure of the present invention; Figure 4 It is a schematic diagram of the auxiliary device of the present invention.

[0018] Among them, 1. cabinet body; 2. cabinet door; 3. handle; 4. mounting block; 5. electric push rod; 6. connecting frame; 7. mounting plate; 8. cooling fan; 9. connecting plate; 10. moving column; 11. cover; 12. rubber pad; 13. spring; 14. mounting frame; 15. industrial camera; 16. lens; 17. processor; 18. controller; 19. exhaust device; 20. exhaust pipe; 21. ventilation hole; 22. bearing seat; 23. screw rod; 24. slider; 25. fixed block; 26. rotating frame; 27. fixed column; 28. telescopic column; 29. ​​toggle block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific implementation 1: like Figure 2 and Figure 3 As shown, a specific embodiment of the present invention provides a low-voltage capacitor cabinet, including a cabinet 1, mounting blocks 4 are fixedly arranged on both sides of the cabinet 1, the mounting blocks 4 are used to carry electric push rods 5, so that the electric push rods 5 can be fixed, the upper ends of the two mounting blocks 4 are fixedly arranged with electric push rods 5, the output ends of the two electric push rods 5 are fixedly connected with connecting frames 6, the electric push rods 5 are a lifting structure, which is used to lift the connecting frame 6, so that when a fire occurs, the heat dissipation fan 8 can be moved, the cover 11 is opposite to the ventilation hole 21, and the cover 11 closes the ventilation hole 21, the bottom of both ends of the connecting frame 6 are fixedly connected with mounting plates 7, and one side of the two mounting plates 7 is fixedly provided with heat dissipation fans 8, and the heat dissipation fans 8 correspond to the ventilation holes 21, which are used to reduce the temperature inside the cabinet 1 to avoid the temperature inside the cabinet 1 being too high, resulting in There is a problem with the electrical components inside the cabinet 1. A connecting plate 9 is fixedly provided at one end of the two cooling fans 8. Moving columns 10 are slidably provided inside the two connecting plates 9. A cover 11 is fixedly provided at one end of the two moving columns 10. One end of the cover 11 corresponds to the ventilation hole 21. The outer walls of the two moving columns 10 between the cover 11 and the connecting plate 9 are sleeved with a spring 13. By setting the spring 13, according to the characteristics of the spring 13, under normal circumstances, the spring 13 is squeezed between the cabinet 1 and the connecting plate 9. When the cover 11 moves to the ventilation hole 21, the squeezing of the spring 13 by the cabinet 1 disappears, one end of the spring 13 recovers its deformation, and the corresponding cover 11 will be embedded in the ventilation hole 21 to complete the sealing of the ventilation hole 21. By utilizing the characteristics of the spring 13, the effect of sealing the ventilation hole 21 can be simply achieved.

[0021] like Figure 1 and Figure 2 As shown, a mounting frame 14 is fixedly provided at one end of the inner wall of the cabinet 1, and an industrial camera 15 is fixedly provided at the bottom of the mounting frame 14. The industrial camera 15 is an image acquisition device. By providing the industrial camera 15, real-time image observation of the interior of the cabinet 1 can be performed, and problems occurring inside the cabinet 1 can be more easily handled in advance. A lens 16 is threadedly connected to the bottom end of the industrial camera 15, and a processor 17, a controller 18 and an exhaust device 19 are fixedly provided at the upper end of the cabinet 1, respectively. An exhaust pipe 20 is fixedly provided at one end of the exhaust device 19. The processor 17 is used to process the image transmitted by the industrial camera 15 and process the image. The controller 18 is used to receive and transmit signals and control the operation of various tools. The exhaust device 19 is used to extract the air inside the cabinet 1. When a fire problem occurs, a negative pressure environment is ensured inside to block the combustion chain reaction of the flame, prevent the fire from spreading and causing a greater impact. Specific implementation 2: like Figure 1 , Figure 2 and Figure 4 As shown, a cabinet door 2 is fixedly provided on one side of the cabinet body 1 through a rotating hinge, and a handle 3 is fixedly provided on one side of the cabinet door 2. The cabinet body 1 is closed by providing the cabinet door 2, and the cabinet door 2 is conveniently opened and closed by the handle 3. Bearing seats 22 are fixedly provided at both upper and lower ends of one side of the cabinet door 2, and a screw rod 23 is fixedly provided between the two bearing seats 22. A slider 24 can move on the screw rod 23, which is a moving structure in the auxiliary device. The outer wall of the screw rod 23 is threadedly connected with the slider 24, and a fixed block 25 is fixedly provided on one side of the slider 24. A rotating frame 26 is rotatably provided inside the fixed block 25, and a fixed column 27 is fixedly provided inside the rotating frame 26. A telescopic column 28 is slidably provided on the outer wall of the fixed column 27. The fixed block 25 and the slider The rotating frame 26 is connected with the block 24, and the rotating frame 26 is rotatably connected with the fixed block 25, so moving the fixed block 25 can move the rotating frame 26, and the rotating frame 26 can be rotated through the rotation connection, and then when the cabinet door 2 is opened again, the position of the telescopic column 28 slidingly connected with the fixed column 27 can be changed by rotating the rotating frame 26, and two toggle blocks 29 are fixedly provided at the output end of the telescopic column 28. The toggle block 29 is used to toggle the switch of the electrical components in the capacitor cabinet, and the height of the telescopic column 28 is changed by the screw rod 23, and the left and right of the telescopic column 28 is changed by the fixed column 27. When the toggle block 29 is at the upper and lower ends of the switch, the height of the telescopic column 28 is changed by the screw rod 23, thereby completing the control of the switch of the electrical components.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, ventilation holes 21 are opened at both ends of the cabinet 1, and the two ventilation holes 21 correspond to the mounting plate 7. The heat dissipation fan 8 is fixedly arranged on one side of the mounting plate 7. The mounting plate 7 corresponds to the ventilation holes 21, that is, the heat dissipation fan 8 corresponds to the ventilation holes 21, so as to cool down the inside of the cabinet 1. Rubber pads 12 are fixedly arranged on one side of the two covers 11. The rubber pads 12 can improve the sealing between the covers 11 and the ventilation holes 21, and can improve the exhaust effect of the exhaust device 19.

[0024] like Figure 4 As shown, the rotating frame 26, the fixed column 27 and the telescopic column 28 are all made of non-conductive materials. An auxiliary device is used to cut off the power. When the device leaks electricity, the power-off device made of non-conductive materials can reduce the damage to the operator.

[0025] It should be noted that the mounting plate 7 and the cover 11 are not fixedly connected to the outer wall of the cabinet 1, but are in contact with it. Through this arrangement, in the event of an accident, the heat dissipation structure can be controlled to rise, allowing the sealing structure to work, thereby sealing the interior of the cabinet 1 and improving the working efficiency of the exhaust device 19.

[0026] In the present example, the device is provided with a sealing device and image acquisition structures, and can detect the inside of the cabinet 1 in real time through the industrial camera 15. When a fire occurs inside the cabinet 1 due to leakage, high-load operation, aging of the line, etc., it can be discovered at the first time. After the discovery, the controller 18 sends a signal to the electric push rod 5, and the electric push rod 5 rises and drives the mounting plate 7 to rise, so as to move the heat dissipation device. At the same time, the cover 11 rises. Through the setting of the spring 13, when the cover 11 is opposite to the ventilation hole 21, one side of the cover 11 loses the squeeze on the spring 13, and the spring 13 recovers its deformation, and the cover 11 enters the ventilation hole 21 accordingly, and then the exhaust device 19 is started to extract the air inside the cabinet 1, so that the air inside the cabinet 1 is reduced, and the heat dissipation device 10 is discharged. In order to block the burning of flames and avoid large-scale burning after a fire, and reduce waste of resources, an auxiliary device is formed by setting a screw rod 23, a slider 24, a fixed block 25, a rotating frame 26, a fixed column 27, a telescopic column 28 and a toggle block 29. In the daily use of the capacitor cabinet, if there is no problem, most of the people who operate it are not professionals. Therefore, when there is a leakage inside the capacitor cabinet, it will cause harm to non-professionals. By setting an auxiliary device and making the auxiliary device using non-conductive materials, the electrical components in the capacitor cabinet are powered off through the setting, which can reduce the risk of electric shock to the staff. The industrial camera 15 is used to perform real-time detection of the inside of the cabinet 1, so that problems inside the cabinet 1 can be discovered more quickly and can be dealt with in time.

[0027] Working principle: The low-voltage capacitor cabinet is mainly composed of a cabinet body 1, a mounting block 4, an electric push rod 5, a connecting frame 6, a mounting plate 7, a cooling fan 8, a connecting plate 9, a moving column 10, a cover 11, a spring 13, a mounting frame 14, an industrial camera 15, a lens 16, a processor 17, a controller 18, an exhaust device 19, a cabinet door 2, a bearing seat 22, a screw rod 23, a slider 24, a fixed block 25, a rotating frame 26, a fixed column 27, a telescopic column 28 and a toggle block 29. Among them, the electric push rod 5, the connecting frame 6, the cooling fan 8, the connecting plate 9, the moving column 10, the sealing cover 11, the spring 13, the mounting frame 14, the industrial camera 15, the lens 16, the processor 17, the controller 18, the exhaust device 19, the cabinet door 2, the bearing seat 22, the screw rod 23, the slider 24, the fixed block 25, the rotating frame 26, the fixed column 27, the telescopic column 28 and the toggle block 29. The heat dissipation and sealing device composed of the heat fan 8, the cover 11 and the spring 13, and the image acquisition and monitoring system composed of the industrial camera 15, the processor 17 and the controller 18 can monitor the internal state of the capacitor cabinet in real time. In the normal state, the heat dissipation fan 8 accelerates the air circulation inside and outside the cabinet, effectively reducing the temperature inside the cabinet. When the capacitor cabinet is on fire due to leakage or high-load operation, old lines, etc., the industrial camera 15 captures the image information inside the capacitor cabinet in real time through the lens 16, and transmits the data to the processor 17 for analysis. The processor 17 analyzes the situation using advanced image processing algorithms, and then sends a signal to the controller 18. The controller 18 sends a signal to the electric push rod 5, and the electric push rod 5 starts, pushing the connection frame 6 and moving the mounting plate 7 and the heat dissipation fan 8 connected thereto upward, while driving the moving column 10 and the cover 11 to rise. During the rising process of the cover 11, the cover 11 will slowly approach the ventilation hole 21. When the cover 11 is opposite to the ventilation holes 21 at both ends of the cabinet 1, the compression of the spring 13 by both sides of the cabinet 1 disappears, and the spring 13 recovers its deformation, prompting the cover 11 to extend into the ventilation hole 21 to complete the closure of the cabinet 1. Then, the exhaust device 19 is started to quickly extract the air in the cabinet through the exhaust pipe 20 to form a negative pressure environment, effectively blocking the combustion chain reaction of the flame and preventing the spread of the fire; the auxiliary operating device composed of the bearing seat 22, the screw rod 23, the slider 24, the fixed block 25, the rotating frame 26, the fixed column 27, the telescopic column 28 and the toggle block 29, etc., the transmission mechanism formed by the bearing seat 22 and the screw rod 23 allows the slider 24 to move freely on the screw rod 23. The fixed block 25 on one side of the slider 24 is rotatably connected to the rotating frame 26, so that the rotating frame 26 can rotate within a certain range. The telescopic column 28 on the fixed column 27 is connected by sliding to achieve left and right movement on the fixed column 27.Two toggle blocks 29 are fixed at the output end of the telescopic column 28, which are used to toggle the switches of the electrical components in the capacitor cabinet. When the staff needs to toggle the switches of the electrical components in the capacitor cabinet, they open the cabinet door 2, rotate the rotating frame 26, make the rotating frame 26 parallel to the cabinet body 1, and then find the electrical components that need to be powered off by moving the slider 24 and the telescopic column 28, so that the switches of the electrical components are as far as the two toggle blocks 29, and then continue to control the slider 24 to move, and complete the power off and power on of the electrical components. In the daily use of the capacitor cabinet, if there is no problem, most of them are not operated by professionals, so When leakage occurs inside the capacitor cabinet, it may cause harm to non-professionals. By setting up an auxiliary device and making the auxiliary device out of non-conductive material, the electrical components in the capacitor cabinet can be powered off through this setting, which can reduce the risk of electric shock to the staff. This setting greatly improves the safety and convenience of operation and reduces the risk of direct contact between personnel and high-voltage equipment. The setting of the rubber pad 12 further enhances the sealing between the cover 11 and the ventilation hole 21 and improves the air extraction effect. According to the above description, the device can monitor the internal condition of the capacitor cabinet in real time through the built-in industrial camera 15 and lens 16. Once a fire problem caused by leakage, high-load operation or old lines is found, the controller 18 can respond quickly. Through the moving device of the electric push rod 5 and the cooling fan 8, and the coordinated use of the cover 11 and the spring 13, the interior of the cabinet 1 is sealed in time, and the interior of the cabinet 1 is evacuated through the exhaust device 19 to form a negative pressure environment, blocking the conditions required for flame combustion, effectively blocking the combustion of the flame, and avoiding the spread of the fire. Through real-time monitoring and rapid response mechanism, the capacitor cabinet can effectively intervene in the early stage of the fire, avoiding the spread of the fire and the waste of resources.

[0028] Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the specific embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage capacitor cabinet, comprising a cabinet body (1), characterized in that: Both sides of the cabinet (1) are fixedly provided with mounting blocks (4), the upper ends of the two mounting blocks (4) are fixedly provided with electric push rods (5), the output ends of the two electric push rods (5) are fixedly connected to connection frames (6), the bottoms of both ends of the connection frames (6) are fixedly connected to mounting plates (7), one side of the two mounting plates (7) is fixedly provided with cooling fans (8), one end of the two cooling fans (8) is fixedly provided with connecting plates (9), the insides of the two connecting plates (9) are slidably provided with moving columns (10), one end of the two moving columns (10) is fixedly provided with a cover (11), and the outer walls of the two moving columns (10) between the cover (11) and the connecting plate (9) are sleeved with springs (13); A mounting frame (14) is fixedly provided at one end of the inner wall of the cabinet (1), an industrial camera (15) is fixedly provided at the bottom end of the mounting frame (14), a lens (16) is threadedly connected to the bottom end of the industrial camera (15), a processor (17), a controller (18) and an exhaust device (19) are respectively fixedly provided at the upper end of the cabinet (1), and an exhaust pipe (20) is fixedly provided at one end of the exhaust device (19).

2. A low-voltage capacitor cabinet according to claim 1, characterized in that: A cabinet door (2) is fixedly provided on one side of the cabinet body (1) via a rotating hinge, and a handle (3) is fixedly provided on one side of the cabinet door (2).

3. A low voltage capacitor cabinet according to claim 2, characterized in that: Bearing seats (22) are fixedly arranged at both upper and lower ends of one side of the cabinet door (2), a screw rod (23) is fixedly arranged between the two bearing seats (22), and a slider (24) is threadedly connected to the outer wall of the screw rod (23).

4. A low-voltage capacitor cabinet according to claim 3, characterized in that: A fixed block (25) is fixedly provided on one side of the sliding block (24), a rotating frame (26) is rotatably provided inside the fixed block (25), a fixed column (27) is fixedly provided inside the rotating frame (26), and a telescopic column (28) is slidably provided on the outer wall of the fixed column (27).

5. A low voltage capacitor cabinet according to claim 4, characterized in that: Two toggle blocks (29) are fixedly arranged at the output end of the telescopic column (28).

6. A low-voltage capacitor cabinet according to claim 1, characterized in that: Ventilation holes (21) are provided through both ends of the cabinet body (1), and the two ventilation holes (21) correspond to the mounting plate (7).

7. A low voltage capacitor cabinet according to claim 1, characterized in that: A rubber pad (12) is fixedly provided on one side of the two sealing covers (11).

8. A low voltage capacitor cabinet according to claim 4, characterized in that: The rotating frame (26), the fixed column (27) and the telescopic column (28) are all made of non-conductive materials.

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