公开(公告)号：US20210241981A1

公开(公告)日：2021-08-05

申请号：US17048699

申请日：2018-04-19

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Antonello Antoniazzi ,  Alessandro Adami ,  Daniele Torresin ,  Francesco Agostini

IPC: H01H9/34 ,  H01H73/18

Abstract: An arc chamber 10, 20, 30, 40, 50 for a low voltage switching device comprising an insulating casing 1, having a first and a second lateral walls 2,3, a rear and a front wall 4,5, that defines an internal space housing a number of arc-breaking plates, a top wall 6 of said casing having a discharge opening 101 for venting off the gases from said internal space, said discharge opening 101 being covered by a top cover 7, 37, 47, 57. The arc chamber for a low voltage switching device comprises a filter 11, 21, 31, 41, 51 made of an open cell metal foam is positioned at said discharge opening 101.

公开(公告)号：US11837427B2

公开(公告)日：2023-12-05

申请号：US17048699

申请日：2018-04-19

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Antonello Antoniazzi ,  Alessandro Adami ,  Daniele Torresin ,  Francesco Agostini

IPC: H01H9/34 ,  H01H73/18

CPC classification number: H01H9/342 ,  H01H73/18 ,  H01H2009/347

Abstract: An arc chamber for a low voltage switching device including an insulating casing, having a first and a second lateral walls, a rear and a front wall, that defines an internal space housing a number or arc-breaking plates, a top wall of the casing having a discharge opening for venting off the gases from the internal space, the discharge opening being covered by a top cover. The arc chamber for a low voltage switching device includes a filter made of an open cell metal foam that is positioned at the discharge opening.