Patent · US Expired

Electric motor

US6784584B2 · kind B2 · utility

6Cited by

7References

7Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Andreas Knoll · Hartha, DE
Wolfgang Zacher · Dobbeln, DE
Michael Weinert · Leisnig, DE

Key dates

Filing date	Oct 23, 2002
Grant date	Aug 31, 2004
Priority date	—
Expiry date	Oct 23, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2203/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The electric motor comprises an internal rotor and an external stator with stator windings. The rotor comprises several permanently magnetic pole shoes. The stator windings are supported by stator pole shanks comprising, radially inside, stator pole shoes facing the rotor pole shoes. Via a short circuit bridge, the stator pole shoes are connected with the adjacent stator pole shoes so that all the stator pole shanks are integrally formed with each other. Radially outside, the stator pole shanks and stator pole shoes are connected with each other only by a separate yoke ring set thereon. All the windings are wound from radially outside with one single continuous winding wire when the yoke ring has been removed.

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