Leakage protection device of power distribution cabinet
By integrating electrical fire monitors and carbon dioxide fire extinguishing systems in the distribution cabinet, we can quickly cut off power during leakage and extinguish the fire source, solving the fire spread problem caused by the failure of the leakage protector and ensuring the safety of the equipment.
Patent Information
- Application Number
- CN202422377765.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-29
AI Technical Summary
When the existing distribution cabinet is leaking, the unclear leakage power supply may affect the normal operation of the leakage protector. When the circuit voltage is too large, the leakage point is prone to cause a fire, causing the fire to spread and cannot be extinguished in time.
An electrical fire monitor and a carbon dioxide fire extinguishing tank are installed in the distribution cabinet, the circuit is disconnected through the insulating block and the fire source is extinguished using carbon dioxide fire extinguishing materials, so as to quickly cut off the power supply and extinguish the fire.
Effectively prevent circuit short circuits and fire spread caused by leakage, ensure the safety of electrical equipment, and avoid the spread of fires caused by failure of leakage protectors.
Smart Images
Figure CN223156516U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distribution cabinets, and specifically relates to a leakage protection device for a distribution cabinet. Background Art
[0002] Distribution cabinets usually include circuit breakers, terminal blocks, meters, protection devices, etc. When the leakage current of electrical equipment may cause electrical fires or electric shock accidents, the function of the leakage protector is to detect the leakage current and quickly cut off the circuit when the leakage current exceeds the set value.
[0003] The existing distribution cabinets usually install leakage protection devices inside the cabinets for leakage protection. When a leakage short circuit occurs, the leakage protector trips and cuts off the power supply of the entire cabinet. However, when the conventional leakage protector is in use, the unclear leakage power source of the cabinet during leakage may directly affect the normal operation of the leakage protector, and when the voltage of the circuit is too high, the leakage point may suddenly catch fire, and the leakage causes the leakage protector installed inside the distribution box to fail to function effectively, resulting in the problem that the distribution cabinet catches fire and the fire spreads due to untimely extinguishing. Summary of the Utility Model
[0004] The utility model provides a leakage protection device for a distribution cabinet, which has the advantages of cutting off the circuit and dealing with short - circuit fire fighting, so as to solve the problems that when the existing technology is used, the unclear leakage power source of the cabinet during leakage may directly affect the normal operation of the leakage protector, and when the voltage of the circuit is too high, the leakage point may suddenly catch fire, and the leakage causes the leakage protector installed inside the distribution box to fail to function effectively, resulting in the problem that the distribution cabinet catches fire and the fire spreads due to untimely extinguishing.
[0005] To achieve the purpose of cutting off the circuit and dealing with short - circuit fire fighting, the utility model provides the following technical solution: A leakage protection device for a distribution cabinet, including a distribution cabinet, on one side surface of the distribution cabinet, an electrical fire monitor is installed, on the top surface of the distribution cabinet, an insulating shell is installed, on the top surface of the inner wall of the insulating shell, an inlet hole is opened, on the top surface of the inner wall of the insulating shell, a moving groove is opened, inside the moving groove, an insulating block is installed, on one side surface of the insulating block, a functional angle is opened, on one side surface of the insulating block, a telescopic rod is installed, on one end surface of the telescopic rod, a fixing plate is installed, on the top surface of the inner wall of the insulating shell, a breaking groove is opened, inside the breaking groove, a functional component is installed, and on the top surface of the inner wall of the distribution cabinet, a fire - extinguishing component is installed.
[0006] As a preferred technical solution of the present utility model, the inner wall of the moving groove is slidably connected to the outer surface of the insulating block. One side surface of the insulating block is fixedly connected to the extended end of the telescopic rod. One end surface of the telescopic rod is fixedly connected to one side surface of the fixing plate. The top surface of the fixing plate is fixedly connected to the top surface of the inner wall of the insulating shell.
[0007] As a preferred technical solution of the present utility model, the functional component includes a first connecting block and a first moving plate. The first connecting block is installed on the bottom surface of the first moving plate. The first moving plate is installed on the inner wall of the breaking groove. A first separating angle is formed on one side surface of the first connecting block. A second connecting block is installed on one side surface of the first separating angle. A second moving plate is installed on the top surface of the second connecting block. A second separating angle is formed on one side surface of the second connecting block.
[0008] As a preferred technical solution of the present utility model, the outer surface of the first moving plate is slidably connected to the inner wall of the breaking groove. The bottom surface of the first moving plate is fixedly connected to the top surface of the first connecting block. The outer surfaces of the first separating angle and the second separating angle are in movable contact with each other. The outer surface of the second moving plate is slidably connected to the inner wall of the breaking groove. The bottom surface of the second moving plate is fixedly connected to the top surface of the second connecting block.
[0009] As a preferred technical solution of the present utility model, the extinguishing component includes a controller and a carbon dioxide fire extinguisher tank. The controller is installed on the top surface of the inner wall of the power distribution cabinet. The carbon dioxide fire extinguisher tank is installed on the top surface of the inner wall of the power distribution cabinet. An electric valve is installed on the bottom surface of the carbon dioxide fire extinguisher tank. A spray pipe is installed on the bottom surface of the electric valve.
[0010] As a preferred technical solution of the present utility model, the controller is electrically connected to the electrical fire monitoring instrument, the controller is electrically connected to the telescopic rod, and the controller is electrically connected to the electric valve.
[0011] Compared with the prior art, the present utility model provides a leakage protection device for a power distribution cabinet, which has the following beneficial effects:
[0012] When a leakage accident occurs and leads to an accident, the electrical fire monitor detects the occurrence of the accident and separates the connecting block through the insulating block to disconnect the circuit, cutting off the power connection that causes the accident and stopping the root cause of the leakage accident in a timely manner. Subsequently, through the cooperation of the carbon dioxide fire extinguishing tank and the nozzle, the inside of the box is filled with carbon dioxide fire extinguishing material. The two cooperate with each other to solve the problem of the leakage point when the voltage of the circuit is too high, causing sudden ignition and leakage, so that the leakage protector installed inside the distribution box plays a role, thus preventing the fire in the distribution cabinet from spreading due to untimely extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 Schematic diagram of the external structure of the present utility model;
[0014] Figure 2 Schematic diagram of the external structure of the present utility model from another angle;
[0015] Figure 3 Schematic diagram of the internal structure of the present utility model;
[0016] Figure 4 Schematic diagram of the functional component structure of the present utility model;
[0017] Figure 5 Schematic diagram of the functional component structure of the present utility model from another angle;
[0018] Figure 6 Schematic diagram of the partial part structure of the functional component of the present utility model;
[0019] Figure 7 Schematic diagram of another angle of the partial part of the functional component of the present utility model from another angle.
[0020] In the figure: 1, distribution cabinet; 2, electrical fire monitor; 301, insulating shell; 302, inlet hole; 303, moving groove; 304, insulating block; 305, functional corner; 306, telescopic rod; 307, fixing plate; 308, breaking groove; 401, first connecting block; 402, first moving plate; 403, first separating corner; 404, second connecting block; 405, second moving plate; 406, second separating corner; 501, controller; 502, carbon dioxide fire extinguishing tank; 503, electric valve; 504, nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1
[0022] Please refer to Figures 1 - 3 , the utility model discloses a leakage protection device for a distribution cabinet, including a distribution cabinet 1, an electrical fire monitor 2 is installed on one side surface of the distribution cabinet 1, an insulating shell 301 is installed on the top surface of the distribution cabinet 1, an inlet hole 302 is opened on the top surface of the inner wall of the insulating shell 301, a moving groove 303 is opened on the top surface of the inner wall of the insulating shell 301, an insulating block 304 is installed on the inner wall of the moving groove 303, a functional angle 305 is opened on one side surface of the insulating block 304, a telescopic rod 306 is installed on one side surface of the insulating block 304, a fixing plate 307 is installed on one end surface of the telescopic rod 306, a breaking groove 308 is opened on the top surface of the inner wall of the insulating shell 301, a functional component is installed on the inner wall of the breaking groove 308, and a extinguishing component is installed on the top surface of the inner wall of the distribution cabinet 1.
[0023] The inner wall of the moving groove 303 is slidably connected to the outer surface of the insulating block 304, one side surface of the insulating block 304 is fixedly connected to the extending end of the telescopic rod 306, one end surface of the telescopic rod 306 is fixedly connected to one side surface of the fixing plate 307, and the top surface of the fixing plate 307 is fixedly connected to the top surface of the inner wall of the insulating shell 301.
[0024] The functional component includes a first connecting block 401 and a first moving plate 402. The first connecting block 401 is installed on the bottom surface of the first moving plate 402. The first moving plate 402 is installed on the inner wall of the breaking groove 308. A first separating angle 403 is opened on one side surface of the first connecting block 401. A second connecting block 404 is installed on one side surface of the first separating angle 403. A second moving plate 405 is installed on the top surface of the second connecting block 404. A second separating angle 406 is opened on one side surface of the second connecting block 404.
[0025] The outer surface of the first moving plate 402 is slidably connected to the inner wall of the breaking groove 308. The bottom surface of the first moving plate 402 is fixedly connected to the top surface of the first connecting block 401. The outer surface of the first separating angle 403 is movably in contact with the outer surface of the second separating angle 406. The outer surface of the second moving plate 405 is slidably connected to the inner wall of the breaking groove 308. The bottom surface of the second moving plate 405 is fixedly connected to the top surface of the second connecting block 404.
[0026] The electrical fire monitor 2 sends a signal to the controller 501 which is electrically connected to each other, causing the controller 501 to send a signal to the telescopic rod 306 to make the telescopic rod 306 operate. The output end of the operating telescopic rod 306 drives the insulating block 304 fixedly connected to each other along the inner wall of the moving groove 303. The moving insulating block 304 contacts the connection between the first connecting block 401 and the second connecting block 404 due to the functional angle 305 opened on one side surface. The movement of the insulating block 304 separates the contact between the first connecting block 401 and the second connecting block 404 due to the angle of the insulating block 304. The first connecting block 401 and the second connecting block 404 move along the inner wall of the open-circuit groove 308 to separate, and at this time, the internal power supply of the power distribution cabinet 1 is disconnected. Embodiment 2
[0027] Based on the above Embodiment 1, please refer to Figures 4 - 7 , including a controller 501 and a carbon dioxide fire extinguishing tank 502. The controller 501 is installed on the top surface of the inner wall of the power distribution cabinet 1, and the carbon dioxide fire extinguishing tank 502 is installed on the top surface of the inner wall of the power distribution cabinet 1. An electric valve 503 is installed on the bottom surface of the carbon dioxide fire extinguishing tank 502, and a spray pipe is installed on the bottom surface of the electric valve 503.
[0028] The controller 501 and the electrical fire monitor 2 are electrically connected to each other, the controller 501 and the telescopic rod 306 are electrically connected to each other, and the controller 501 and the electric valve 503 are electrically connected to each other.
[0029] The controller 501 controls the opening of the electric valve 503. Because the opening of the electric valve 503 causes the filling material of the carbon dioxide fire extinguishing tank 502 that generates a fire source for the leakage accident to enter the inner wall of the spray pipe 504 along the inner wall of the electric valve 503, and then sprays out along the inner wall of the spray pipe 504 to achieve uniform spraying on the entire cabinet body.
[0030] Working principle and usage process of the present utility model: When a leakage accident occurs in the leakage protection device of this power distribution cabinet, when the electrical fire monitor 2 detects a leakage accident caused by a short circuit of the electrical components installed on the inner wall of the power distribution cabinet 1, the electrical fire monitor 2 sends a signal to the controller 501 that is electrically connected to each other, so that the controller 501 sends a signal to the telescopic rod 306 to make the telescopic rod 306 operate. The output end of the operating telescopic rod 306 drives the insulating block 304 fixedly connected to each other along the inner wall of the moving groove 303. The moving insulating block 304 contacts the connection between the first connecting block 401 and the second connecting block 404 due to the functional angle 305 opened on one side surface. The movement of the insulating block 304 causes the insulating block 304 to separate the contact between the first connecting block 401 and the second connecting block 404 due to the angle of the insulating block 304. The first connecting block 401 and the second connecting block 404 move along the inner wall of the breaking groove 308 and separate. At this time, the internal power supply of the power distribution cabinet 1 is disconnected, and the electrical components inside stop power supply due to the lack of power.
[0031] Subsequently, the electric spark caused by the short circuit inside and the possible ignition point, the controller 501 controls the electric valve 503 to open. Because the opening of the electric valve 503 enables the filling material of the carbon dioxide fire extinguishing tank 502 for the fire source generated by the leakage accident to enter the inner wall of the spray pipe 504 along the inner wall of the electric valve 503, and then sprays out along the inner wall of the spray pipe 504 to achieve uniform spraying of the entire cabinet body. The above realizes the protection and treatment of the power distribution cabinet 1 against leakage.
Claims
1. A leakage protection device for a power distribution cabinet, comprising a power distribution cabinet (1), and an electrical fire monitor (2) is installed on one side surface of the power distribution cabinet (1), characterized in that: An insulating shell (301) is installed on the top surface of the power distribution cabinet (1). An inlet hole (302) is formed in the top surface of the inner wall of the insulating shell (301). A moving groove (303) is formed in the top surface of the inner wall of the insulating shell (301). An insulating block (304) is installed on the inner wall of the moving groove (303). A functional angle (305) is formed in one side surface of the insulating block (304). A telescopic rod (306) is installed on one side surface of the insulating block (304). A fixing plate (307) is installed on one end surface of the telescopic rod (306). A breaking groove (308) is formed in the top surface of the inner wall of the insulating shell (301). A functional component is installed on the inner wall of the breaking groove (308). A fire extinguishing component is installed on the top surface of the inner wall of the power distribution cabinet (1). The fire extinguishing component includes a controller (501) and a carbon dioxide fire extinguishing tank (502). The controller (501) is installed on the top surface of the inner wall of the power distribution cabinet (1).
2. The leakage protection device of a power distribution cabinet according to claim 1, characterized in that: The inner wall of the moving groove (303) is slidably connected to the outer surface of the insulating block (304). One side surface of the insulating block (304) is fixedly connected to the extended end of the telescopic rod (306). One end surface of the telescopic rod (306) is fixedly connected to one side surface of the fixing plate (307). The top surface of the fixing plate (307) is fixedly connected to the top surface of the inner wall of the insulating shell (301).
3. The leakage protection device for a power distribution cabinet according to claim 1, characterized in that: The functional component includes a first connecting block (401) and a first moving plate (402). The first connecting block (401) is installed on the bottom surface of the first moving plate (402). The first moving plate (402) is installed on the inner wall of the breaking groove (308). A first separating angle (403) is formed in one side surface of the first connecting block (401). A second connecting block (404) is installed on one side surface of the first separating angle (403). A second moving plate (405) is installed on the top surface of the second connecting block (404). A second separating angle (406) is formed in one side surface of the second connecting block (404).
4. The leakage protection device of a power distribution cabinet according to claim 3, characterized in that: The outer surface of the first moving plate (402) is slidably connected to the inner wall of the breaking groove (308). The bottom surface of the first moving plate (402) is fixedly connected to the top surface of the first connecting block (401). The outer surface of the first separating angle (403) is movably in contact with the outer surface of the second separating angle (406). The outer surface of the second moving plate (405) is slidably connected to the inner wall of the breaking groove (308). The bottom surface of the second moving plate (405) is fixedly connected to the top surface of the second connecting block (404).
5. The leakage protection device of a power distribution cabinet according to claim 1, characterized in that: The carbon dioxide fire extinguishing tank (502) is installed on the top surface of the inner wall of the power distribution cabinet (1). An electric valve (503) is installed on the bottom surface of the carbon dioxide fire extinguishing tank (502). A spray pipe (504) is installed on the bottom surface of the electric valve (503).
6. The leakage protection device of a power distribution cabinet according to claim 5, characterized in that: The controller (501) is electrically connected to the electrical fire monitor (2), the controller (501) is electrically connected to the telescopic rod (306), and the controller (501) is electrically connected to the electric valve (503).