Patent · US Expired

Electric motor and method for operating such a motor

US6373210B2 · kind B2 · utility

4Cited by

9References

15Claims

0Family size

Assignee

SEW-EURODRIVE GMBH & CO. KG · DE

Inventors

Jorg Roth-Stielow · Bretten, DE
Josef Schmidt · Graben-Neudorf, DE

Key dates

Filing date	Jan 4, 2000
Grant date	Apr 16, 2002
Priority date	—
Expiry date	Jan 4, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH02P3/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Conventionally converter-controlled electric motors are allowed to operate in generational mode during braking and to convert the electrical energy so produced into heat. Such motors may also comprise electromagnetically actuated mechanical brakes. In the present invention it is proposed to supply the electrical energy produced by the motor when in a generational mode to an excitation coil of the brake and there store it temporarily as magnetic energy or convert it into heat.

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