公开(公告)号：US20190066939A1

公开(公告)日：2019-02-28

申请号：US15767059

申请日：2015-10-08

Applicant: ABB Schweiz AG

Inventor： Gunnar Johansson ,  David Karlén ,  Jonathan Jonsson ,  Markus Angell ,  Mats Henning Johansson

IPC: H01H3/40 ,  H01H9/38 ,  H01H9/34

CPC classification number: H01H3/40 ,  H01H1/20 ,  H01H1/2025 ,  H01H1/2041 ,  H01H9/34 ,  H01H9/346 ,  H01H9/38 ,  H01H9/383 ,  H01H2201/024 ,  H01H2201/026 ,  H01H2225/004

Abstract: A switching device for breaking an electric current including a main contact carrier, movable and stationary main contacts, the movable contact attached to the main contact carrier, an arcing contact carrier, a movable and stationary arcing contacts, the movable arcing contact attached to the arcing contact carrier and the stationary arcing contact arranged in parallel with the stationary main contact, and an actuating unit for the main and arcing contact carriers between open and close position at an actuating distance, wherein there are separation distances between the stationary and movable contacts of the main and arcing contact units respectively when the current is interrupted. The switching device further includes a first rack and a first gear for actuating the arcing contact carrier so that, when interrupting the current, a separation distance between the arcing contacts is longer than a separation distance between the main contacts.

公开(公告)号：US10347436B2

公开(公告)日：2019-07-09

申请号：US15767059

申请日：2015-10-08

Applicant: ABB Schweiz AG

Inventor： Gunnar Johansson ,  David Karlén ,  Jonathan Jonsson ,  Markus Angell ,  Mats Henning Johansson

IPC: H01H3/40 ,  H01H9/38 ,  H01H9/34 ,  H01H1/20

Abstract: A switching device for breaking an electric current including a main contact carrier, movable and stationary main contacts, the movable contact attached to the main contact carrier, an arcing contact carrier, a movable and stationary arcing contacts, the movable arcing contact attached to the arcing contact carrier and the stationary arcing contact arranged in parallel with the stationary main contact, and an actuating unit for the main and arcing contact carriers between open and close position at an actuating distance, wherein there are separation distances between the stationary and movable contacts of the main and arcing contact units respectively when the current is interrupted. The switching device further includes a first rack and a first gear for actuating the arcing contact carrier so that, when interrupting the current, a separation distance between the arcing contacts is longer than a separation distance between the main contacts.