Mining flame-proof and intrinsic safety type direct-current stabilized power supply

Abstract

The invention relates to a mining flame-proof and intrinsic safety type direct-current stabilized power supply which comprises a flame-proof shell, a wiring terminal, a switching power supply, a circuit mainboard, a battery pack, a flame-proof control switch, a charging panel and a flame-proof through-wall terminal, and the flame-proof shell is composed of a shell body, a main cavity cover plate, a battery cavity cover plate and inner hexagon screws. The shell body, the main cavity cover plate and the battery cavity cover plate are fixed to form an explosion-proof face, a cable inlet, eight cable outlets, a grounding bolt and a switch knob are arranged on the right side of the explosion-proof shell, a main cavity and a battery cavity are formed in the explosion-proof shell, and the wiring terminal, the switching power supply, the circuit mainboard and the charging panel are installed in the main cavity. The battery and the explosion-proof control switch are installed in the battery cavity, the charging panel is connected with the battery pack in the battery cavity and the explosion-proof control switch through the explosion-proof through-wall terminal, when underground wiring or faults occur, electric connection between the main cavity and the battery cavity is disconnected through the explosion-proof control switch, and normal work of a system and workers in a mine is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of DC stabilized voltage power supply, and more specifically, relates to a mining explosion-proof and intrinsically safe DC stabilized voltage power supply. Background technique [0002] Explosion-proof and intrinsically safe DC power supply for mining is a kind of electrical equipment suitable for the dangerous environment of gas and coal dust explosive gas in coal mines. It provides electric energy for other electrical equipment in the mine. Ensuring the normal operation of the safety monitoring system and the life support system provides a strong guarantee for the safe and stable construction environment of coal mine underground operations. [0003] The existing DC stabilized power supply used in underground coal mines, when the cover needs to be opened when entering the mine or fails, the internal battery connectors will be exposed to the environment. Due to the existence of gas and coal dust in ...

AI Technical Summary

Problems solved by technology

[0003] The existing DC stabilized power supply used in underground coal mines, when the cover needs to be opened when entering the mine or fails, the internal battery connectors will be exposed to the environment. Due to the existence of gas and coal dust in the underground, there is a risk of explosion. Faults may cause safety incidents

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