Patent · US Expired

Drive device with an electric motor and a relay switching the motor current

US5877569A · kind A · utility

14Cited by

11References

28Claims

0Family size

Assignee

BROSE FAHRZEUGTEILE GMBH & CO. · DE

Inventors

Peter Heinrich · Oberhausen, DE
Helmut Sesselmann · Steinach, DE

Key dates

Filing date	Dec 11, 1997
Grant date	Mar 2, 1999
Priority date	—
Expiry date	Dec 11, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH02K23/66
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drive device with an electric motor with permanent magnets and a pole top more particularly for use with servo drives in motor vehicles. A relay is provided for switching the motor current with at least one electromagnet, which contains a relay coil and a relay armature, and with at least one relay contact. The relay is mounted in the pole top of the electric motor and the magnetic field lines of the electromagnets are closed through the permanent magnets and the pole top of the electric motor.

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