Intelligent high-voltage capacitor cabinet

By introducing explosion-proof and automatic power-off mechanisms into the intelligent high-voltage capacitor cabinet, the fire problem caused by wiring short circuits has been solved, enabling timely fire extinguishing and power cut-off, thus improving safety.

CN224384818UActive Publication Date: 2026-06-19TIANJIN YITONG ELECTRIC TECH DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN YITONG ELECTRIC TECH DEV
Filing Date
2025-04-21
Publication Date
2026-06-19

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  • Figure CN224384818U_ABST
    Figure CN224384818U_ABST
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Abstract

The utility model relates to capacitor cabinet technical field discloses an intelligent high -voltage capacitor cabinet, including capacitor cabinet main part, the top of capacitor cabinet main part is provided with explosion -proof mechanism, the back of capacitor cabinet main part is provided with automatic power -off mechanism, the explosion -proof mechanism includes hollow board, the top of capacitor cabinet main part is movably inserted in the hollow board, the bottom fixed mounting of hollow board has the perforated plate, the center of the bottom of perforated plate is fixedly installed with smoke transducer, the top fixed mounting of hollow board has the metal support. The utility model discloses the design of explosion -proof mechanism whole, can monitor whether the device fire -out condition appears in the capacitor cabinet main part inner chamber, can fill carbon dioxide gas in the inner chamber of capacitor cabinet main part after the device fire -out, realizes the fire extinguishing treatment to device, avoids the problem that the device fire -out easily causes greater fire disaster, promotes the security, fully guarantees the property safety of user.
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Description

Technical Field

[0001] This utility model relates to the field of capacitor bank technology, specifically to an intelligent high-voltage capacitor bank. Background Technology

[0002] Intelligent high-voltage capacitor banks are devices used in power systems primarily to improve voltage quality and stability. Through intelligent control technology, they compensate for reactive power in the power system, thereby optimizing its operating efficiency. Intelligent high-voltage capacitor banks utilize high-quality high-voltage compensation capacitors to provide local reactive power compensation for 3-10kV inductive loads, effectively improving the power factor of the equipment (up to 0.95 or higher). Through intelligent control, they can automatically adjust the switching of capacitors when the grid load changes, ensuring voltage stability and efficient grid operation.

[0003] When using intelligent high-voltage capacitor banks, faults such as short circuits may occur due to human error in wiring or equipment aging. These faults can easily lead to fires in the components inside the cabinet, which can then cause larger fires, resulting in poor safety. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent high-voltage capacitor bank that solves the problem that faults such as short circuits in wiring can easily lead to larger fires in the existing technology.

[0005] This utility model provides the following technical solution: an intelligent high-voltage capacitor bank, including a capacitor bank body, an explosion-proof mechanism on the top of the capacitor bank body, and an automatic power-off mechanism on the back of the capacitor bank body.

[0006] The explosion-proof mechanism includes a hollow plate, which is movably inserted into the top of the capacitor cabinet body. A perforated plate is fixedly installed at the bottom of the hollow plate, and a smoke sensor is fixedly installed at the center of the bottom of the perforated plate. A metal bracket is fixedly installed on the top of the hollow plate, and the number of metal brackets is set to two. A metal rod is welded between the adjacent sides of the two metal brackets, and a gas storage tank is fixedly installed on the inner wall of the metal bracket.

[0007] As a preferred embodiment of the above technical solution, a three-way pipe is fixedly connected to the right side of the gas storage tank, a connecting pipe is fixedly connected to the right side of the three-way pipe, a solenoid valve is fixedly connected to the end of the connecting pipe away from the three-way pipe, the solenoid valve is fixedly connected to the top of the hollow plate, and a manual valve is fixedly connected to the top of the three-way pipe.

[0008] The above technical solution, through the design of the three-way pipe, connecting pipe, solenoid valve and manual valve, facilitates the filling or releasing of gas inside the gas storage tank.

[0009] As a preferred embodiment of the above technical solution, the explosion-proof mechanism further includes a limiting frame, which is fixedly installed on the top of the capacitor cabinet body. A movable part is fixedly installed on the side of the hollow plate. The movable part is movably inserted into the inner cavity of the limiting frame. A locking bolt is threadedly connected to the side of the limiting frame, and the threaded end of the locking bolt is movably connected to the outer wall of the movable part.

[0010] Through the above technical solution, the hollow plate can be detachably connected to the top of the capacitor cabinet body by means of the cooperation of the limiting frame, the movable parts and the locking bolt.

[0011] As a preferred embodiment of the above technical solution, a cabinet door is rotatably connected to the front of the capacitor cabinet body, and exhaust holes are provided on both sides of the capacitor cabinet body. An embedded frame is fixedly installed on the inner wall of the capacitor cabinet body near the back, and an elastic band is fixedly connected between the top and bottom of the inner wall of the embedded frame.

[0012] The above technical solution, through the design of the elastic band, can reduce the opening of the embedded frame, thereby achieving a dustproof function.

[0013] As a preferred embodiment of the above technical solution, the automatic power-off mechanism includes a raised seat, which is fixedly installed on the back of the capacitor cabinet body. A support rod is fixedly installed on the back of the raised seat, and a power socket is fixedly installed on the end of the support rod away from the raised seat.

[0014] As a preferred embodiment of the above technical solution, a strip seat is fixedly installed on the top of the protruding seat, an electric telescopic rod is fixedly installed on the back of the strip seat, the telescopic end of the electric telescopic rod extends to the front of the strip seat and is fixedly connected to a movable seat, a roller is rotatably connected to the side of the movable seat, and the outer surface of the roller is movably connected to the top of the protruding seat.

[0015] The above technical solution, through the design of the rollers, can reduce the resistance of the moving seat's displacement on the top of the raised seat.

[0016] As a preferred embodiment of the above technical solution, a clamping frame is fixedly installed on the top of the movable seat, a sliding rod is slidably connected to the inner wall of the clamping frame, and a pressure plate is fixedly installed at the bottom of the sliding rod.

[0017] Through the above technical solution, the design of the slide bar can limit the vertical movement of the pressure plate, which facilitates the subsequent adjustment of the height of the pressure plate.

[0018] As a preferred embodiment of the above technical solution, the top of the clamping frame is threadedly connected to a threaded rod, and the threaded end of the threaded rod is rotatably connected to the top of the pressure plate.

[0019] The above technical solution, through the design of the threaded rod, allows users to easily adjust the height of the pressure plate and to start or unfix the power cord.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention, through the overall design of the explosion-proof mechanism, can monitor whether there is a fire in the components inside the capacitor cabinet. After a fire occurs, carbon dioxide gas can be filled into the inner cavity of the capacitor cabinet to extinguish the fire and prevent the fire from easily causing a larger fire, thus improving safety and fully protecting the user's property. Through the overall design of the automatic power-off mechanism, after detecting a fire, the plug can be automatically unplugged to cut off the power supply to the components inside the capacitor cabinet, preventing the continuous generation of electrical sparks inside the capacitor cabinet. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is a schematic diagram of the top structure of the hollow plate of this utility model;

[0024] Figure 3 This is a schematic diagram of the bottom structure of the perforated plate of this utility model;

[0025] Figure 4 This is a schematic diagram of the rear structure of the main body of the cabinet of this utility model;

[0026] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0027] Figure 6 This is a schematic diagram of the structure of the protrusion seat of this utility model.

[0028] In the diagram: 1. Capacitor cabinet body; 11. Cabinet door; 12. Exhaust vent; 13. Embedded frame; 14. Elastic band; 2. Explosion-proof mechanism; 21. Limiting frame; 22. Locking bolt; 23. Moving parts; 24. Hollow board; 25. Perforated board; 26. Smoke sensor; 27. Metal bracket; 271. Metal rod; 272. Gas tank; 273. T-pipe; 274. Connecting pipe; 275. Solenoid valve; 276. Manual valve; 3. Automatic power-off mechanism; 31. Raised seat; 32. Support rod; 33. Power socket; 34. Strip seat; 35. Electric telescopic rod; 36. Moving seat; 37. Roller; 38. Clamping frame; 381. Slide rod; 382. Pressure plate; 383. Threaded rod. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] like Figures 1-6As shown, this utility model provides a technical solution: an intelligent high-voltage capacitor bank, including a capacitor bank body 1, an explosion-proof mechanism 2 on the top of the capacitor bank body 1, and an automatic power-off mechanism 3 on the back of the capacitor bank body 1. The explosion-proof mechanism 2 includes a hollow plate 24, which is movably inserted into the top of the capacitor bank body 1. A perforated plate 25 is fixedly installed at the bottom of the hollow plate 24, and a smoke sensor 26 is fixedly installed at the center of the bottom of the perforated plate 25. Two metal brackets 27 are fixedly installed on the top of the hollow plate 24, and a metal rod 271 is welded between adjacent sides of the two metal brackets 27. A gas storage tank 272 is fixedly installed on the inner wall of the metal bracket 27, and a three-way pipe 273 is fixedly connected to the right side of the gas storage tank 272. A connecting pipe 274 is fixedly connected to the right side of the three-way pipe 273, and the connecting pipe 274 is located away from the three-way pipe 273. A solenoid valve 275 is fixedly connected to the top of the hollow plate 24. A manual valve 276 is fixedly connected to the top of the three-way pipe 273. Carbon dioxide gas is pre-filled into the inner cavity of the gas storage tank 272 by opening the manual valve 276. The smoke sensor 26 is an existing structure model that can be set as JTY-GD-HA801-G. The smoke sensor 26 determines whether there is a fire in the device inside the capacitor cabinet body 1 by the smoke signal, and feeds back the monitored information to the controller through an electrical signal. If there is a fire in the device inside the capacitor cabinet body 1, the controller will control the solenoid valve 275 to open, so that the carbon dioxide gas inside the gas storage tank 272 enters the hollow plate 24, and then passes through the perforated plate 25 and is evenly fed into the inner cavity of the capacitor cabinet body 1, replacing the gas in the inner cavity of the capacitor cabinet body 1 through the exhaust port 12, thereby realizing the function of extinguishing the fire of the device.

[0031] As one implementation method in this embodiment, such as Figure 1 , Figure 2 , Figure 4As shown, the explosion-proof mechanism 2 also includes a limiting frame 21, which is fixedly installed on the top of the capacitor cabinet body 1. A movable part 23 is fixedly installed on the side of the hollow plate 24. The movable part 23 is movably inserted into the inner cavity of the limiting frame 21. A locking bolt 22 is threadedly connected to the side of the limiting frame 21. The threaded end of the locking bolt 22 is movably connected to the outer wall of the movable part 23. A cabinet door 11 is rotatably connected to the front of the capacitor cabinet body 1. Vent holes 12 are opened on both sides of the capacitor cabinet body 1. An embedded frame 13 is fixedly installed on the inner wall of the capacitor cabinet body 1 near the back. The top and bottom of the inner wall of the embedded frame 13 are fixedly connected. The hollow plate 24 is detachably connected to the top of the capacitor cabinet body 1 by means of the elastic band 14, the limiting frame 21, the locking bolt 22 and the movable part 23. This makes it easy for the user to disassemble the hollow plate 24 and then maintain the components at the top of the inner cavity of the capacitor cabinet body 1. The cabinet door 11 can be opened to maintain the components inside the capacitor cabinet body 1. The power cords of the components inside the capacitor cabinet body 1 can be led out through the inner cavity of the embedded frame 13. The design of the elastic band 14 can block the connection between the power cord and the inner wall of the embedded frame 13, reducing the amount of dust that naturally enters the capacitor cabinet body 1.

[0032] As one implementation method in this embodiment, such as Figure 4 , Figure 5 , Figure 6 As shown, the automatic power-off mechanism 3 includes a raised seat 31, which is fixedly installed on the back of the capacitor cabinet body 1. A support rod 32 is fixedly installed on the back of the raised seat 31. A power socket 33 is fixedly installed at the end of the support rod 32 away from the raised seat 31. A strip seat 34 is fixedly installed on the top of the raised seat 31. An electric telescopic rod 35 is fixedly installed on the back of the strip seat 34. The telescopic end of the electric telescopic rod 35 extends to the front of the strip seat 34 and is fixedly connected to a movable seat 36. A roller 37 is rotatably connected to the side of the movable seat 36. The outer surface of the roller 37 is movably connected to the top of the raised seat 31. A clamping frame 38 is fixedly installed on the top of the movable seat 36. A slide rod 381 is slidably connected to the inner wall of the clamping frame 38. A pressure plate 382 is fixedly installed at the bottom of the slide rod 381. The top of the 8 is threaded with a threaded rod 383. The threaded end of the threaded rod 383 is rotatably connected to the top of the pressure plate 382. The power cord of the internal components of the capacitor cabinet body 1 is passed through the inner cavity of the clamping frame 38 and then connected to the power socket 33. The power socket 33 is an existing structure. The power cord is powered through the power socket 33. Rotating the threaded rod 383 causes the pressure plate 382 to move down, locking the power cord in the inner cavity of the clamping frame 38. If the components inside the capacitor cabinet body 1 catch fire, the controller will control the electric telescopic rod 35 to extend. Through the transmission of the moving seat 36, the clamping frame 38 moves, causing the power cord to be pulled out from the front of the power socket 33, relieving the power supply to the components inside the capacitor cabinet body 1, avoiding the problem of continuous electric sparks inside the capacitor cabinet body 1, and further increasing safety.

[0033] Working principle: During use, the smoke sensor 26 determines whether there is a fire in the capacitor cabinet body 1 through the smoke signal. If there is a fire in the capacitor cabinet body 1, the controller will control the solenoid valve 275 to open, causing the carbon dioxide gas inside the gas tank 272 to enter the hollow plate 24, and then pass through the perforated plate 25 to be evenly fed into the inner cavity of the capacitor cabinet body 1. The gas in the inner cavity of the capacitor cabinet body 1 is replaced through the exhaust port 12, realizing the function of extinguishing the fire in the device. At the same time, the controller will control the electric telescopic rod 35 to extend, and drive the clamping frame 38 to move through the transmission of the moving seat 36, so that the power cord is pulled out from the front of the power socket 33, and the power supply to the device in the capacitor cabinet body 1 is cut off.

[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An intelligent high-voltage capacitor bank, comprising a capacitor bank body (1), characterized in that: An explosion-proof mechanism (2) is provided on the top of the capacitor cabinet body (1), and an automatic power-off mechanism (3) is provided on the back of the capacitor cabinet body (1). The explosion-proof mechanism (2) includes a hollow plate (24), which is movably inserted into the top of the capacitor cabinet body (1). A perforated plate (25) is fixedly installed at the bottom of the hollow plate (24). A smoke sensor (26) is fixedly installed at the center of the bottom of the perforated plate (25). A metal bracket (27) is fixedly installed at the top of the hollow plate (24). The number of metal brackets (27) is set to two. A metal rod (271) is welded between the adjacent sides of the two metal brackets (27). A gas storage tank (272) is fixedly installed on the inner wall of the metal bracket (27).

2. The intelligent high-voltage capacitor bank according to claim 1, characterized in that: A three-way pipe (273) is fixedly connected to the right side of the gas storage tank (272), and a connecting pipe (274) is fixedly connected to the right side of the three-way pipe (273). A solenoid valve (275) is fixedly connected to the end of the connecting pipe (274) away from the three-way pipe (273). The solenoid valve (275) is fixedly connected to the top of the hollow plate (24), and a manual valve (276) is fixedly connected to the top of the three-way pipe (273).

3. The intelligent high-voltage capacitor bank according to claim 1, characterized in that: The explosion-proof mechanism (2) also includes a limiting frame (21), which is fixedly installed on the top of the capacitor cabinet body (1). A movable part (23) is fixedly installed on the side of the hollow plate (24). The movable part (23) is movably inserted into the inner cavity of the limiting frame (21). A locking bolt (22) is threadedly connected to the side of the limiting frame (21). The threaded end of the locking bolt (22) is movably connected to the outer wall of the movable part (23).

4. The intelligent high-voltage capacitor bank according to claim 1, characterized in that: The capacitor cabinet body (1) is rotatably connected to a cabinet door (11) on the front side. Vent holes (12) are provided on both sides of the capacitor cabinet body (1). An embedded frame (13) is fixedly installed on the inner wall of the capacitor cabinet body (1) near the back. An elastic band (14) is fixedly connected between the top and bottom of the inner wall of the embedded frame (13).

5. The intelligent high-voltage capacitor bank according to claim 1, characterized in that: The automatic power-off mechanism (3) includes a protruding seat (31), which is fixedly installed on the back of the capacitor cabinet body (1). A support rod (32) is fixedly installed on the back of the protruding seat (31), and a power socket (33) is fixedly installed at the end of the support rod (32) away from the protruding seat (31).

6. The intelligent high-voltage capacitor bank according to claim 5, characterized in that: A strip seat (34) is fixedly installed on the top of the protruding seat (31), and an electric telescopic rod (35) is fixedly installed on the back of the strip seat (34). The telescopic end of the electric telescopic rod (35) extends to the front of the strip seat (34) and is fixedly connected to a movable seat (36). A roller (37) is rotatably connected to the side of the movable seat (36), and the outer surface of the roller (37) is movably connected to the top of the protruding seat (31).

7. The intelligent high-voltage capacitor bank according to claim 6, characterized in that: A clamping frame (38) is fixedly installed on the top of the movable seat (36), and a slide rod (381) is slidably connected to the inner wall of the clamping frame (38). A pressure plate (382) is fixedly installed on the bottom of the slide rod (381).

8. The intelligent high-voltage capacitor bank according to claim 7, characterized in that: The top of the clamping frame (38) is threadedly connected to a threaded rod (383), and the threaded end of the threaded rod (383) is rotatably connected to the top of the pressure plate (382).