Patent · US Active

Electric Machine

US11323010B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Martin Floß · Ingolstadt, DE
Peter Maischak · Hepberg, DE
Michael Schwarzer · Aindling, DE
Albert Scharlach · Oberdolling, DE
Philipp UHLMANN · Ingolstadt, DE

Key dates

Filing date	Jul 13, 2020
Grant date	May 3, 2022
Priority date	—
Expiry date	Aug 3, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02K13/003
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric machine, including a stator and a rotor shaft having a cooling device, which shaft carries at least one slip ring, which has a lateral surface, which electrically contacts a contact element fixed on the stator, and which is at least partially accommodated in a recess of the rotor shaft, wherein an extension section of the slip ring, which is at least partially accommodated in the recess, extends beyond the lateral surface in one or both axial directions of the rotor shaft.

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