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1. 发明申请

US20220384130A1 CIRCUIT BREAKER 有权
公开(公告)号：US20220384130A1
公开(公告)日：2022-12-01
申请号：US17619582
申请日：2020-07-10
申请人： ASTOTEC AUTOMOTIVE GMBH
发明人： Dietmar HABA , Ludwig MARKER , Kurt AIGNER
IPC分类号： H01H39/00 , H01H9/30
摘要： The invention relates to a current breaker in which a busbar (18) passes through a cavity (25) in which a piston (14) can be moved. By moving the piston (14), a circuit board (19) is broken out of the busbar (18), thus interrupting the current flow. The current breaker has at least one metal filter element (16) which, according to the invention, extends up to the cavity (25). This ensures that the disconnected circuit board (19) touches the at least one filter element (16) during tripping. After the circuit board (19) is separated from the busbar (18), an electric arc is formed which, due to the filter element (16) being touched by the circuit board (19), switches over to the metal filter element (16) when the circuit board (19) continues to move, as a result of which the energy from the system inductance is converted into heat loss in the filter element (16). When suitably designed, there is only a moderate increase in pressure in the current breaker and thus practically no external effect. Additionally, an extinguishing agent, e.g. a silicone oil or a silicone-containing grease, may be provided. The housing can be sealed and the filter elements (16, 16′) can be insulated from the exterior.

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