Damp-proof power distribution box with function of cutting off power in case of fire

Abstract

The invention discloses a moistureproof distribution box with a fire power-off function, which comprises a box body assembly, a flow guide device, a separation device and a pressure regulating device, and is characterized in that the box body assembly is connected with the flow guide device, the flow guide device is communicated with the separation device, the pressure regulating device is movably connected with the box body assembly, the box body assembly is communicated with the separation device, and the box body assembly comprises a box body; a working cavity is formed in the box body, a wire inlet hole is formed in the working cavity, a wire inlet sliding groove is formed in the box body, magnetic suction cups are symmetrically arranged in the wire inlet hole, the two sides of the wire inlet sliding groove are communicated with the wire inlet hole and the working cavity respectively, the magnetic suction cup close to one side of the wire inlet hole is connected with a transmission inlet wire, and the magnetic suction cup close to one side of the wire inlet hole is connected with the wire inlet sliding groove in a sliding mode. A heat insulation layer is arranged along the inner wall of the working cavity, an air inlet channel is formed in one side of the lower end of the box body, and the flow guiding device is located at an inlet of the air inlet channel.

Description

technical field [0001] The invention relates to the technical field of power distribution boxes, in particular to a moisture-proof power distribution box with a power-off function in case of fire. Background technique [0002] With the continuous expansion of the types of electrical equipment, the power consumption is also increasing, and the importance of power supply and distribution devices has become more and more prominent. However, during the power distribution process of the distribution box, a large amount of heat will be generated inside the box, which will cause the internal electrical insulation layer to age, reduce the service life, and in severe cases, fire will occur. [0003] In addition, the distribution box is mostly used outdoors. Due to the harsh outdoor environment, the conventional sealing material will age with the heat accumulation of the box, which will cause the outside air to be poured into the inside of the box. Since the outside air contains impur...

AI Technical Summary

Problems solved by technology

[0002] With the continuous expansion of the types of electrical equipment, the power consumption is also increasing, and the importance of power supply and power distribution devices is becoming more and more prominent. In order to ensure the safety of power consumption, the power distribution box is used to distribute power to prevent branch circuits from overloading and short circuiting. However, during the power distribution process of the distribution box, a large amount of heat will be generated inside the box, which will age the internal electrical insulation layer and reduce the service life. In severe cases, the setting will cause a fire

[0003] In addition, distribution boxes are mostly used outdoors. Due to the harsh outdoor environment, conventional sealing materials will age with the accumulation of heat in the box, which will cause external air to be poured into the box. Since the external air contains impurities such as dust and water vapor, once it enters Inside the distribution box, where the insulating layer is aging, charge breakdown is prone to occur, causing a fire

The heat dissipation performance of the existing power distribution cabinet is also affected by the rainy weather. Through the circulation of heat dissipation, water vapor is easily brought into the box, increasing the air humidity and causing a short circuit, especially the atomized raindrops, which are easy to drift due to their small particle size. Although the existing cold air inlet opens downward, the atomized raindrops will also participate in the circulation under the air disturbance and enter the inside of the box

Images