公开(公告)号：EP4428887A1

公开(公告)日：2024-09-11

申请号：EP23160179.0

申请日：2023-03-06

申请人： Hyundai Electric & Energy Systems Co., Ltd.

发明人： KIM, Keon Woo ,  KIM, Ji Hoon ,  BAIK, Seung Hwan

IPC分类号： H01H1/38 ,  H01H33/70

CPC分类号： H01H1/385 ,  H01H33/7023 ,  H01H33/7038

摘要： An earthing switch includes a fixed contact part fixed in an enclosure, a movable contact part disposed to face the fixed contact part, having a hollow portion formed therein, and having one end portion connected to a driving device and driven by the driving device so that the other end portion thereof is connected to or separated from the fixed contact part, and a piston part located in the hollow portion and moving relative to the movable contact part, wherein the hollow portion extends in a longitudinal direction of the movable contact part, both end portions of the hollow portion in the longitudinal direction are formed to be open, and the piston part includes a gas flow path formed therein.