公开(公告)号：US20170358412A1

公开(公告)日：2017-12-14

申请号：US15621511

申请日：2017-06-13

Applicant: ABB Schweiz AG

Inventor： Andrea Delpozza ,  Emanuele Morelli ,  Osvaldo Prestini ,  Veronica Biagini ,  Christian Simonidis

IPC: H01H50/18 ,  H01H50/56 ,  H01H50/36 ,  H01F1/147

CPC classification number: H01H50/18 ,  H01F1/14766 ,  H01H3/28 ,  H01H3/30 ,  H01H33/38 ,  H01H33/6662 ,  H01H50/36 ,  H01H50/56 ,  H01H51/2209 ,  H01H2235/01

Abstract: A contactor (1) comprising: one or more electric poles (3); for each electric pole, a fixed contact (31) and a corresponding movable contact (32), the one or more movable contacts (32) of said contactor being reversibly movable, along corresponding displacement axes (33) mutually parallel and lying on a common displacement plane (34), between a first position (A), at which said movable contacts are decoupled from the corresponding fixed contacts, and a second position (B), at which said movable contacts are coupled with the corresponding fixed contacts; a movable armature (7) reversibly movable, along a corresponding displacement direction parallel to the displacement axes (33) of said movable contacts, between a third position (C) and a fourth position (D); for each electric pole, a first plunger (8) coupled with said movable armature (7) and with a corresponding movable contact (32), each first plunger extending along a corresponding main longitudinal axis parallel or coinciding with the displacement axis (33) of a corresponding movable contact (32); an electromagnetic actuator (4) comprising a magnetic yoke (41, 42) having a fixed yoke member (41) and a movable yoke member (42), said movable yoke member being reversibly movable, along a corresponding displacement direction parallel to the displacement axes (33) of said movable contacts (32), between a fifth position (E), at which it is decoupled from said fixed yoke member, and a sixth position (F), at which it is coupled with said fixed yoke member, said electromagnetic actuator further comprising a coil (44) wound around said fixed yoke member (41) and adapted to be fed by a coil current (IC) to make said fixed yoke member (41) to magnetically interact with said movable yoke member (42) and generate a force to move said movable yoke member from said fifth position (E) to said sixth position (F) or maintain said movable yoke member in said sixth position (F); one or more opening springs (6) coupled with said fixed yoke member (41) and said movable yoke member (42), said opening springs being adapted to provide a force to move said movable yoke member from said sixth position (F) to said fifth position (E); one or more second plungers (5) coupled with said movable yoke member (42) and said movable armature (7), each second plunger extending along a corresponding main longitudinal axis parallel with the displacement axes (33) of said movable contacts (32).