A high-power high-voltage fuse

Abstract

The utility model provides a kind of high-power high-voltage fuse, it is related to electrical protection equipment, including insulating shell, breaking conductor, two breaking grid sheets, two gas generating devices and two radiators;Breaking conductor includes two installation parts, two narrow diameter parts and heat conduction part, heat conduction part is in the shape of I, and both sides of heat conduction part are equipped with main heat transfer surface;Breaking conductor traverses insulating shell, and each radiator includes base and fin arranged on the outside of base, two radiators are fixedly installed on both sides of heat conduction part, and the inside of the base of two radiators respectively is attached with both main heat transfer surfaces of heat conduction part, and the fin of two radiators penetrates insulating shell.The utility model has the beneficial effects that: heat conduction part is arranged between the two narrow diameter parts that are most likely to generate heat, two radiators are arranged to contact with both sides of heat conduction part respectively, so that the heat inside the fuse is transferred to two radiators through heat conduction part, and then transferred outward through two radiators, so that heat is released, and the risk of failure is greatly reduced.

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