Patent · US Active

Thermal fuse

US10636597B2 · kind B2 · utility

0Cited by

5References

8Claims

0Family size

Assignee

BorgWarner Ludwigsburg GmbH · DE

Inventors

Sisay Tadele · Friolzheim, DE
Alexander Dauth · Maulbronn, DE
Steffen Geiger · Asperg, DE
Markus Wetzel · Wuppertal, DE

Key dates

Filing date	Jul 11, 2019
Grant date	Apr 28, 2020
Priority date	—
Expiry date	Jul 11, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2037/763
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A thermal fuse for an electrical circuit is described, with a contact arm by way of which two electrical conductors are electrically conductively connected to each other, wherein the connection of the contact arm to at least one of the two conductors is a soldered joint, which loses its strength when a activation temperature of the fuse is reached. In accordance with this disclosure a permanent magnet is provided, which generates a magnetic force, which lifts the contact arm from at least one of the two conductors as soon as the soldered joint loses its strength.

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