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    PYROTECHNIC CIRCUIT BREAKER
    9.
    发明公开
    PYROTECHNIC CIRCUIT BREAKER 审中-公开

    公开(公告)号：EP3401940A1

    公开(公告)日：2018-11-14

    申请号：EP17305521.1

    申请日：2017-05-09

    申请人： ArianeGroup SAS

    发明人： MARLIN, Frédéric ,  NADEAU, Jean-Paul ,  LORENZON, Romain

    IPC分类号： H01H39/00 ,  B23D15/14 ,  F15B15/19

    CPC分类号： H01H39/006 ,  B23D15/145 ,  B23D29/005 ,  F15B15/19 ,  H01H2039/008

    摘要： The invention related to a pyrotechnic circuit breaker (1) comprising: a body (10), a piston (40) slidably mounted in said body along a first direction (Z), said piston having a first protrusion (42) comprising a cutting edge (42a), a pyrotechnic igniter (30), and a bus bar (50). The piston is adapted to move from a raised position to a lowered position to cut the bus bar into two distinct portions (50a, 50b) upon activation of the pyrotechnic igniter (30). The piston further comprises a second protrusion (44a) extending from the lower face (43) over a greater distance (dl) than the first protrusion (d2). The bus bar (50) comprises an aperture (52a) aligned along the first direction (Z) with said second protrusion (44a), the second protrusion and the aperture being adapted to cooperate such that the second protrusion is engaged in the aperture when the piston moves from the first position to the second position.