公开(公告)号：US20190362917A1

公开(公告)日：2019-11-28

申请号：US16473143

申请日：2017-11-23

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ROLAND MONKA ,  CHRISTIAN DENGLER

IPC分类号： H01H33/70

摘要： An electrical switching device includes a first switching contact piece and a second switching contact piece. The switching contact pieces can be displaced in relation to each other. The first switching contact piece is surrounded by a fluid flow guiding device. An enveloping contour of a flow duct, disposed between the fluid flow guiding device and the first switching contact piece, is greater at its end facing the second switching contact piece than an enveloping contour of the first switching contact piece at its end facing the second switching contact piece.

公开(公告)号：US20180047524A1

公开(公告)日：2018-02-15

申请号：US15672842

申请日：2017-08-09

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： HANS-PETER DAMBIETZ ,  CHRISTIAN DENGLER ,  FRANK EHRLICH ,  ROLAND MONKA ,  INGOLF REIHER ,  STEFAN ROSSA ,  PETER SCHMIDT ,  MARCEL WEIGEL

IPC分类号： H01H5/10 ,  H01H33/42 ,  H01H33/50 ,  H01H33/40

CPC分类号： H01H5/10 ,  H01H3/004 ,  H01H3/30 ,  H01H5/06 ,  H01H33/40 ,  H01H33/42 ,  H01H33/50 ,  H01H2003/3057

摘要： A snap-action drive for a switching device has an energy store, a swinging movable part and a securing device for the movable part. The securing device secures a position of the swinging movable part by a force effect, wherein a reversal of direction of the movable part takes place counter to the force effect.