Patent · US Active

Contactor for DC operation

US8937519B2 · kind B2 · utility

8Cited by

10References

16Claims

0Family size

Assignee

EATON ELECTRICAL IP GMBH & CO. KG · DE

Inventors

Karsten Gerving · Bonn, DE
Ralf Thar · Sankt Augustin, DE
Johannes Meissner · Bonn, DE
Volker Lang · Gauting, DE

Key dates

Filing date	Jul 27, 2012
Grant date	Jan 20, 2015
Priority date	—
Expiry date	Jul 27, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01H1/2066
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A contactor for DC operation includes a first and a second contact that are fixed contacts and a contact bridge that has a third and a fourth contact. The contact bridge, in a closed position, provides a tactile contact between a first contact pair, which comprises the first and the third contact, and between a second contact pair, which comprises the second and the fourth contact. The contact bridge is movable via a guide along a direction of movement. A magnet arrangement is configured to generate an electromagnetic force on an electric arc, which arises on opening the contacts. The contact bridge has at least one recess, which is arranged between the guide and the third contact. The recess is configured to provide an opening at the contact bridge through which the arc, generated at the third contact, is deflected in the direction of movement of the contact bridge.

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