Patent · US Active

Pole shoe, electric motor, and vehicle

US11374446B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Endre Barti · Munich, DE
Dragoljub DURICIC · Munich, DE
Zakaria El Khawly · Munich, DE
Daniel Loos · Munich, DE
Joerg Merwerth · Dachau, DE

Key dates

Filing date	Jul 17, 2019
Grant date	Jun 28, 2022
Priority date	—
Expiry date	Jun 25, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A pole shoe of an electric machine limits a winding surface of a rotor that can rotate about an axis of rotation. The pole shoe is connected to a pole web of the rotor. An outer side of the pole shoe, which faces away from the pole web in the connected state, has a first region having a substantially sinusoidal contour profile and a second region having a second contour profile. The second contour profile is different from the first contour profile and is formed in such a way that the winding surface in a circumferential direction of the rotor is lengthened with respect to a winding surface of a pole shoe having an outer side extending exclusively substantially sinusoidally.

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