Patent · US Active

Electric machine

US9225227B2 · kind B2 · utility

1Cited by

5References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernd Schroeder · Eßlingen, DE
Christian Maus · Duisburg, DE

Key dates

Filing date	Feb 4, 2013
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Jul 4, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02K29/08
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric machine (1), in particular for a drive apparatus for a motor vehicle, comprising a rotor shaft (9), which is mounted rotatably in a housing (2), comprising a slip ring device (13), which has at least two slip rings (14, 15) arranged in rotationally fixed fashion on the rotor shaft (9) and at least two sliding contacts (16, 17), which are arranged in the housing (2) and interact with in each case one of the slip rings (14, 15), and comprising a rotation angle detection device, which has at least one rotation angle encoder (23) arranged on the rotor shaft (9) and at least one rotation angle sensor (26) arranged in the housing for detecting the rotation angle encoder (23).

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