Switching appliance with netted arc blowout device

Abstract

The invention relates to a switching appliance with a netted arc blowout device. The switching appliance comprises a switching appliance body, an arc extinguishing cover and a netted arc blowout device; an arc outlet is formed on one side of the switching appliance body; one side surface of the extinguishing cover is externally installed on the outer surface of the switching appliance body on the outer side of the arc outlet, an upper end and a lower end of the arc extinguishing cover are respectively provided with an opening, and multiple paths of exhaust holes are formed in the middle of the arc extinguishing cover; the netted arc blowout device is vertically arranged in the arc extinguishing cover and in the arc outlet, and the outer end surface of the netted arc blowout device is communicated with the multiple paths of exhaust holes. The netted arc blowout device is arranged in the arc outlet of the ordinary switching appliance body, high-temperature electrified particles in the arc are adsorbed by utilizing the netted arc blowout device, high-temperature neutral gas in the arc can permeate the netted arc blowout device and can be discharged outwards through the openings in the upper end and the lower end of the arc extinguishing cover, so that the deionization and arc blowout effect can be realized; moreover, the arc extinguishing speed can be accelerated, the arc combusting time is also reduced, and the switching appliance product actually has a zero-flashover effect.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, in particular to a switching appliance with a mesh arc extinguishing device. Background technique [0002] Switching appliances refer to switches that are used in low-voltage electrical appliances to manually switch on and off circuits infrequently, or as switches for introducing power in machine tool circuits. Switching electrical products will generate an arc composed of high-temperature charged particles and high-temperature neutral gas when the switch contacts on it disconnect the circuit. The intensity and size of the arc depend on the voltage and current when the circuit is disconnected. There are arc outlets on the top, but if the arc overflows from the arc outlet, it will easily form a short circuit between phases in the circuit, and if the arc is ejected from the front of the switching device, it will endanger personal safety. Therefore, there are many calibrati...

AI Technical Summary

Problems solved by technology

Switching electrical products will generate an arc composed of high-temperature charged particles and high-temperature neutral gas when the switch contacts on it disconnect the circuit. The intensity and size of the arc depend on the voltage and current when the circuit is disconnected. There are arc outlets on the top, but if the arc overflows from the arc outlet, it will easily form a short circuit between phases in the circuit, and if the arc is ejected from the front of the switching device, it will endanger personal safety. Therefore, there are many calibrations on traditional switching electrical products. Arcing safety distance, that is, in this area, electrical components related to insulation cannot be installed, but there is no relatively effective means of arc suppression, so effective arc suppression in switching electrical products has long been the main subject of research by technicians in this industry

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