Patent · US Active

Switching device

US11551898B2 · kind B2 · utility

0Cited by

11References

23Claims

0Family size

Assignee

TDK Electronics AG · JP

Inventors

Robert Hoffmann · Berlin, DE
Kheng Yu Chong · Johor Bahru, MY

Key dates

Filing date	May 3, 2019
Grant date	Jan 10, 2023
Priority date	—
Expiry date	May 3, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2050/025
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switching device is disclosed. In an embodiment a switching device includes at least one stationary contact and a movable contact in a switching chamber configured to contain a gas containing H2, wherein the movable contact is movable by a magnetic armature with a shaft, wherein the shaft projects through an opening in a yoke which is part of a magnetic circuit, and wherein a liner composed of a plastic is arranged in the opening of the yoke, the liner configured to guide the shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.