Multifunctional explosion-proof high-voltage cabinet
By installing fire extinguishing and dehumidification components in the high-voltage switchgear, the problem of the high-voltage switchgear being unable to quickly extinguish fires in the event of an arc fault is solved, achieving rapid extinguishing of open flames and internal drying, thus protecting equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-31
AI Technical Summary
Existing high-voltage switchgear cannot quickly extinguish fires caused by electric arcs due to operational errors, leading to the spread of open flames and damage to the equipment.
Fire extinguishing components are installed in the high-pressure cabinet, including open flame sensors, motor-driven L-shaped swing arms and sprinkler systems. Dry powder is stored in a high-pressure tank, and the sprinklers are controlled by a motor to spray dry powder to extinguish the fire. Dehumidification components are also provided to prevent moisture from damaging the equipment.
It achieves rapid fire extinguishing protection for open flames inside the high-voltage cabinet, preventing equipment damage, while keeping the interior dry through dehumidification components to avoid moisture damage.
Smart Images

Figure CN224068142U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high pressure cabinet field especially relates to a multifunctional explosion -proof high pressure cabinet. BACKGROUND
[0002] High pressure cabinet is a kind of equipment for power system, mainly for control, protection and isolation electric power equipment, it is used in substation, power distribution station etc.
[0003] The structure of high pressure cabinet is usually composed of metal shell, electrical element, operating mechanism and protection device, and its working principle is to control the on-off of current by switching device, to ensure that electrical equipment is not affected by overload, short circuit or other electrical faults, and high pressure cabinet requires high insulation and pressure resistance in design to ensure safety in high pressure environment.
[0004] High pressure cabinet needs to be very careful in operation process, especially in opening and closing process, to avoid dangerous high-voltage arc caused by operation error, although the current high pressure cabinet has explosion-proof function, but does not have fire extinguishing function, when the arc caused by operation error produces open fire in the cabinet, it cannot quickly extinguish the flame, causing equipment damage, therefore, a multifunctional explosion-proof high pressure cabinet is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a multifunctional explosion-proof high pressure cabinet, which aims to improve the problem that although the current high pressure cabinet has explosion-proof function, but does not have fire extinguishing function, when the arc caused by operation error produces open fire in the cabinet, it cannot quickly extinguish the flame, causing equipment damage.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a multifunctional explosion-proof high pressure cabinet, comprising cabinet body, characterized by: the top of the cabinet body is provided with fire extinguishing assembly, and the bottom of the cabinet body is provided with dehumidification assembly.
[0007] The fire extinguishing assembly comprises a support frame and an open fire sensor, the open fire sensor is fixedly installed in the cabinet body, the support frame is fixedly connected to the inside of the cabinet body, a motor is fixedly connected to the top of the support frame, one end of an L-shaped swing arm is fixedly connected to the output end of the motor, and a sliding block is rotatably connected to the other end of the L-shaped swing arm.
[0008] As a further description of the above technical solution:
[0009] The top of the L-shaped swing arm is rotatably connected to the inside of the support frame.
[0010] As a further description of the above technical solution:
[0011] The dehumidifying assembly comprises a dehumidifying box and a shell, the dehumidifying box is slidably connected to the inside of the cabinet body, the shell is fixedly assembled with the cabinet body, a plug rod is slidably connected to the inside of the shell, a sliding plate is fixedly connected to the outside of the plug rod, a spring is sleeved on the plug rod, the spring is arranged between the inside left side of the shell and the sliding plate, and the plug rod is inserted into the inside of the dehumidifying box.
[0012] As a further description of the above technical solution:
[0013] The right side of the shell is slidably connected with a baffle in the vertical direction, the top of the shell is fixedly connected with a limiting plate, and the rear side of the baffle is slidably connected to the front side of the limiting plate.
[0014] As a further description of the above technical solution:
[0015] The baffle and the limiting plate are both L-shaped.
[0016] As a further description of the above technical solution:
[0017] When the baffle is inserted into the inside of the shell, the baffle shields the right side of the shell.
[0018] As a further description of the above technical solution:
[0019] The top of the support frame is fixedly connected with a storage battery, the storage battery is electrically connected between the motor and the valve.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1. In this utility model, the L-shaped swing arm is driven to rotate by the motor, which causes the slider to drive the slide rod to deflect. Under the support of the rotating rod, the rotating plate drives the sprayer to deflect to the other side, causing the sprayer to deflect. At the same time, the valve opens and the dry powder in the high-pressure tank is transported to the sprayer through the hose and sprayed out, so as to extinguish the open flame in the cabinet in time, thereby protecting the internal device.
[0022] 2. In this utility model, dehumidification is achieved by using a dehumidification box, and a spring pushes a sliding plate to drive an insert rod into the dehumidification box, thereby removing the moisture contained in the air inside the cabinet, preventing water vapor from damaging the cabinet, and allowing for quick replacement of the dehumidification box. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a multifunctional explosion-proof high-voltage cabinet proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the structure of a dehumidification box for a multifunctional explosion-proof high-voltage cabinet proposed in this utility model.
[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 This is a schematic diagram of the structure of a multifunctional explosion-proof high-voltage cabinet sprayer proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the insertion rod of a multifunctional explosion-proof high-voltage cabinet proposed in this utility model.
[0028] Legend:
[0029] 1. Cabinet; 2. Support frame; 3. Motor; 4. L-shaped swing arm; 5. Slider; 6. Slide rod; 7. Rotating plate; 8. Rotating rod; 9. Sprayer; 10. Hose; 11. High-pressure tank; 12. Valve; 13. Battery; 14. Dehumidifier box; 15. Outer shell; 16. Insert rod; 17. Slide plate; 18. Spring; 19. Baffle; 20. Limiting plate; 21. Open flame sensor. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figure 1 -Figure 4 The present invention provides an embodiment of a multifunctional explosion-proof high-voltage cabinet, including a cabinet body 1, which serves as a carrier for installing various electrical equipment. A fire extinguishing component is installed on the top of the cabinet body 1, and a dehumidification component is installed at the bottom of the cabinet body 1.
[0032] The fire extinguishing assembly includes a support frame 2, which is fixedly connected inside the cabinet 1. A motor 3 is fixedly connected to the top of the support frame 2. An L-shaped swing arm 4 is fixedly connected to the output end of the motor 3. A slider 5 is rotatably connected inside the L-shaped swing arm 4. A sliding rod 6 is slidably connected inside the slider 5. Two rotating plates 7 are fixedly connected to the outside of the sliding rod 6. A rotating rod 8 is fixedly connected between the two rotating plates 7. A sprinkler 9 is fixedly connected between adjacent sides of the two rotating plates 7. The sprinkler 9 is an existing component consisting of a delivery pipe and several nozzles. A hose is fixedly connected to the outside of the sprinkler 9. 10. A high-pressure tank 11 is fixedly connected to the top of the hose 10. A valve 12 is fixedly connected to the output end of the high-pressure tank 11. A battery 13 is fixedly connected to the top of the support frame 2. The support frame 2 is used to support the fire extinguishing assembly and keep it stable. The motor 3 is used to drive the L-shaped swing arm 4 to rotate. The L-shaped swing arm 4 is used to drive the slider 5 to move. The slider 5 is used to drive the slide rod 6 to move back and forth. The slider 5 both slides and rotates on the slide rod 6. The slide rod 6 is used to drive the rotating plate 7 to deflect. The rotating plate 7 is used to drive the sprinkler 9 to move. The rotating rod 8 is the rotating shaft of the rotating plate 7, so that the sprinkler... Sprayer 9 moves in the opposite direction to slide bar 6. Sprayer 9 is used to spray dry powder for fire extinguishing. Hose 10 is used to transport dry powder from pressure tank 11 to sprayer 9. Pressure tank 11 is an existing component with a gas compressor. Pressure tank 11 is a container for storing dry powder. The pressure tank 11 has a strong gas pressure inside, which can force the dry powder out. Valve 12 is electrically operated to control the timing of pressure release from pressure tank 11. Battery 13 is used to provide power to motor 3 and valve 12, enabling operation in the event of a power outage. The entire fire extinguishing assembly is equipped with an open flame sensor 21 to control the timing of valve 12 opening. There is an electrical connection between battery 13 and motor 3, and an electrical connection between battery 13 and valve 12 to enable normal operation. The rotating rod 8 is externally rotatably connected to the inside of support frame 2 to keep it stable. The bottom of the high-pressure tank 11 is fixedly connected to the top of cabinet 1 to keep the high-pressure tank 11 stable. The bottom of the battery 13 is fixedly connected to the top of cabinet 1 to keep the battery 13 stable. The top of the L-shaped swing arm 4 is rotatably connected to the inside of support frame 2 to keep the L-shaped swing arm 4 stable.
[0033] Reference Figure 1 , Figure 2 , Figure 5The dehumidification assembly includes a dehumidification box 14 and a housing 15. The dehumidification box 14 is externally slidably connected to the inside of the cabinet 1. The left side of the housing 15 is fixedly connected to the right side of the cabinet 1. An insertion rod 16 is slidably connected inside the housing 15. A sliding plate 17 is fixedly connected to the outside of the insertion rod 16. A spring 18 is fixedly connected to the front of the sliding plate 17. A baffle 19 is vertically slidably connected to the right side of the housing 15. A limit plate 20 is fixedly connected to the top of the housing 15. The housing 15 is used to connect and protect the internal parts. The insertion rod 16 is inserted into the dehumidification box 14 to fix the dehumidification box 14. The sliding plate 17 is used to withstand the pushing force of the spring 18 and drive the insertion rod 16 to move synchronously. The spring 18 is used to drive the insertion rod 16 to return to its original position. The baffle 19 is used to block... The outlet of the plug rod 16 prevents it from automatically resetting. The limiting plate 20 limits the movement distance of the baffle 19 to prevent it from falling off. The slide plate 17 is externally slidably connected to the inner wall of the outer shell 15 to limit the movement direction of the slide plate 17. The plug rod 16 is externally inserted into the dehumidification box 14 to keep the dehumidification box 14 stable. The rear side of the baffle 19 is slidably connected to the front side of the limiting plate 20 to limit the movement direction of the baffle 19. The front side of the baffle 19 and the rear end of the plug rod 16 abut against each other to prevent the plug rod 16 from automatically resetting. The bottom of the baffle 19 and the top of the slide plate 17 abut against each other to control the timing of the slide plate 17's descent. The front end of the spring 18 is fixedly connected to the inner wall of the outer shell 15. The spring 18 is internally sleeved on the outside of the plug rod 16 to keep the spring 18 stable.
[0034] Working Principle: During normal use, the dehumidifier box 14 removes moisture from the inside of the cabinet 1, preventing damage to the electrical equipment inside. After a period of use, the dehumidifier box 14 will become saturated and needs to be replaced promptly. By pulling the plug rod 16, the plug rod 16 drives the slide plate 17 to compress the spring 18, causing the plug rod 16 to retract into the outer casing 15 and disengage from the dehumidifier box 14. At the same time, the baffle 19 will automatically fall into the outer casing 15, blocking the outlet of the plug rod 16. At this point, the dehumidifier box 14 is unlocked. Then, the dehumidifier box 14 is removed, and a new dehumidifier box 14 is inserted back into the cabinet 1. Finally, under the limit of the limiting plate 20, pulling the baffle 19 will immediately push the slide plate 17 to reset, driving the plug rod 16... Reinsert the dehumidifier box 14 into place to secure it, thus facilitating replacement. The operation is simple, time-saving, and labor-saving. Then, it can continue working. If an open flame occurs inside the cabinet 1 during use, the detection head will detect it and respond immediately, automatically cutting off the power to the cabinet 1 and controlling the motor 3 and valve 12. The battery 13 will provide power to open valve 12, and the high-pressure tank 11 will immediately depressurize, allowing the dry powder to enter the sprayer 9 along the hose 10 and be sprayed out. Simultaneously, the battery 13 controls the motor 3 to rotate the L-shaped swing arm 4 and move the slider 5, causing the slide rod 6 to drive the rotating plate 7 to deflect back and forth. Supported by the rotating rod 8, the rotating plate 7 begins to drive the sprayer 9 to deflect back and forth, evenly spraying the dry powder into the cabinet 1, extinguishing the open flame and effectively protecting the internal electrical equipment.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multifunctional explosion-proof high-voltage cabinet comprising a cabinet body (1), characterized in that: The cabinet body (1) top is provided with a fire extinguishing assembly, and the cabinet body (1) bottom is provided with a dehumidifying assembly; The fire extinguishing assembly comprises a support frame (2) and an open fire sensor (21), the open fire sensor (21) is fixedly installed in the cabinet body (1), the support frame (2) is fixedly connected inside the cabinet body (1), a motor (3) is fixedly connected to the top of the support frame (2), one end of the L-shaped swing arm (4) is fixedly connected to the output end of the motor (3), and the other end of the L-shaped swing arm (4) is rotatably connected with a sliding block (5); a rotating rod (8) is rotatably installed on the inner side of the support frame (2), two rotating plates (7) are rotatably installed on the rotating rod (8), a sliding rod (6) is fixedly installed on the top between the two rotating plates (7), the sliding block (5) is slidably assembled with the sliding rod (6), a sprayer (9) is fixedly installed on the bottom between the two rotating plates (7), a high-pressure tank (11) is fixedly installed in the cabinet body (1), the output end of the high-pressure tank (11) is fixedly connected with a valve (12), and the sprayer (9) is connected and assembled with the valve (12) through a hose (10).
2. The multifunctional explosion-proof high-voltage cabinet according to claim 1, characterized in that: The top of the L-shaped swing arm (4) is rotatably connected to the inner side of the support frame (2).
3. The multi-functional explosion-proof high-voltage cabinet according to claim 1, characterized in that: The dehumidifying assembly comprises a dehumidifying box (14) and a shell (15), the dehumidifying box (14) is slidably connected to the inside of the cabinet body (1), the shell (15) is fixedly assembled with the cabinet body (1), an insertion rod (16) is slidably connected in the shell (15), a sliding plate (17) is fixedly connected to the outside of the insertion rod (16), the insertion rod (16) is sleeved with a spring (18), the spring (18) is abutted between the inside left side of the shell (15) and the sliding plate (17), and the insertion rod (16) is inserted into the dehumidifying box (14).
4. The multi-functional explosion-proof high-voltage cabinet according to claim 3, characterized in that: The right side of the shell (15) is slidably connected with a baffle (19) in the vertical direction, the top of the shell (15) is fixedly connected with a limiting plate (20), and the rear side of the baffle (19) is slidably connected to the front side of the limiting plate (20).
5. The multi-functional explosion-proof high-voltage cabinet according to claim 4, characterized in that: The baffle (19) and the limiting plate (20) are both L-shaped.
6. The multi-functional explosion-proof high-voltage cabinet according to claim 4, characterized in that: When the baffle (19) is inserted into the shell (15), the baffle (19) blocks the right side of the shell (15).
7. The multi-functional explosion-proof high-voltage cabinet according to claim 2, characterized in that: The top of the support frame (2) is fixedly connected with a storage battery (13), the storage battery (13) and the motor (3) are electrically connected, and the storage battery (13) and the valve (12) are electrically connected.