Patent · US Active

Electrical drive motor for a vehicle

US8575807B2 · kind B2 · utility

5Cited by

4References

16Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Joerg Merwerth · Dachau, DE
Jens Halbedel · Puchheim, DE
Guenter Schlangen · Kaufering, DE

Key dates

Filing date	Apr 25, 2012
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Apr 25, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/2766
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric drive motor that is intended for a vehicle, in particular for a motor vehicle, includes a stator and a rotor with at least one pole pair, wherein each pole of a respective pole pair has a magnet arrangement having at least one buried magnetic layer. The drive motor is characterized in that each pole has a number of magnetic flux influencing groups, each of which has a number of air-filled recesses, which are not assigned to a magnet of a respective magnetic layer for purposes of flux conductance.

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