Outdoor power distribution cabinet with rapid self-extinguishing function

Abstract

The invention belongs to the field of power distribution cabinets, and especially relates to an outdoor power distribution cabinet with a rapid self-extinguishing function. The cabinet comprises a cabinet body, and a partition plate which is horizontally arranged is fixedly mounted on the inner side wall of the cabinet body; the partition plate divides the cabinet body into a fire extinguishing cavity and a mounting cavity; and the inner side wall of the fire extinguishing cavity is connected with a horizontally-arranged sealing plate in a sealed and sliding mode. The lower surface of the sealing plate is fixedly connected with a partition plate through an elastic air bag. The elastic air bag is filled with a thermal expansion and cold contraction medium, two through holes are formed in the sealing plate, and a vertically-arranged flow guide pipe rotationally penetrates through the partition plate, the flow guide pipe and the two through holes are arranged in a staggered mode, and a threaded rod arranged in the axial direction of the flow guide pipe is arranged in the flow guide pipe. When a fire occurs in the power distribution cabinet, a fire extinguishing agent in the fire extinguishing cavity can be automatically sprayed to electrical equipment in the mounting cavity, so that an automatic fire extinguishing effect is achieved, the fire in the cabinet body can be quickly controlled, and the possibility of economic loss and dangerous accidents is reduced.

Description

technical field [0001] The invention belongs to the field of power distribution cabinets, in particular to an outdoor power distribution cabinet with a rapid self-extinguishing function. Background technique [0002] The power distribution cabinet plays the role of on-off, control and protection in power generation, transmission, distribution, power conversion and consumption. It is the final equipment in the power equipment industry. The safe and reasonable use of electric cabinets is becoming more and more important. [0003] Some power distribution cabinets are located in places where people are not densely populated outdoors. Due to direct sunlight and heat reflection on the concrete floor, the heat generated by the equipment in the power distribution cabinet is difficult to dissipate in time. Sometimes the temperature inside the cabinet exceeds 60°C or even higher. High, such a high temperature can easily cause the insulation aging of electrical coils and lead wires to...

AI Technical Summary

Problems solved by technology

[0003] Some power distribution cabinets are located in places where people are not densely populated outdoors. Due to direct sunlight and heat reflection on the concrete floor, the heat generated by the equipment in the power distribution cabinet is difficult to dissipate in time. Sometimes the temperature inside the cabinet exceeds 60°C or even higher. High, such a high temperature can easily cause the insulation aging of electrical coils and lead wires to break down and burn out. The contact resistance of electrical contacts will increase due to excessive temperature, and the increase in contact resistance will aggravate heating. Such a vicious cycle will eventually lead to burnout of the contacts. , It is easy to cause serious accidents such as fire, and it is difficult for the outdoor power distribution cabinet to be well monitored by the staff. When a fire occurs, it is not easy to be found and timely artificially extinguish the fire, causing serious economic losses and safety accidents.

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