Patent · US Active

Electric machine with a resistor for dissipating shaft voltages

US9887606B2 · kind B2 · utility

0Cited by

0References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Henger · Tamm, DE
Bernd Schroeder · Eßlingen, DE

Key dates

Filing date	Jul 15, 2015
Grant date	Feb 6, 2018
Priority date	—
Expiry date	Dec 4, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH02K13/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric machine with at least one electrical resistor (24) for dissipating shaft voltages occurring at the rotor shaft (2) of a rotor (1), in which the electrical resistor (24) is enclosed in a contact ring (13) mounted on the rotor shaft (2) between contact surfaces (17, 23, 25, 28, 29) applied to the contact ring (13) on the outside, and in which the resistor (24) is electrically connected via the contact surfaces (17, 23, 25, 28, 29) to the rotor shaft (2) on one side and to the excitation winding (14) of the rotor (1) on the other side.

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