公开(公告)号：EP1638121A4

公开(公告)日：2009-02-25

申请号：EP04738184

申请日：2004-05-28

申请人： LIU PING ,  LIU SHUI

发明人： LIU PING

IPC分类号： H01H33/46 ,  H01H71/00

CPC分类号： H01H50/32 ,  H01H50/546 ,  H01H50/60 ,  H01H71/2436 ,  H01H89/08

摘要： a electrical switch for connecting and breaking the circuit includes at least a set of connecting and breaking mechanism for connecting and breaking the circuit; and a electromagnetism drive mechanism for controlling the contact to motion so as to realize closed circuit; and a housing for accommodating the movable contact and stationary contact; and a arc­suppressing mechanism disposed in the housing corresponding to the movable contact and stationary contact; and a case connected to the base for accommodating the electromagnetism drive mechanism; and a bedplate associated with case; it further includes a holding mechanism disposed on the bedplate for holding the contact mechanism which is electromagnetic to connect the circuit the electromagnetic holding mechanism has a set of electromagnetic attracting mechanism in which the movable iron core is made to be a pothook or a baffle mechanism, the movable iron core is attracted to make the contact mechanism hold the circuit connected when the electromagnetic attracting mechanism is added voltage. The electrical switch has a structure in which it has a breakaway mechanism using winding, in which the remanence being small and the feedback force being large and the action of the limiting current being rapid, it can break the large short circuit current as air switch.