Patent · US Active

Rotor assembly for an electric machine, electric machine for a vehicle, and vehicle

US11177709B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

Valeo Siemens eAutomotive Germany GmbH · DE

Inventors

Nils Krais · Strahlungen, DE
Philipp Söntgerath · Niederkrüchten, DE
Sebastian Waider · Eisenberg, DE

Key dates

Filing date	Jul 26, 2019
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Jul 26, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02K9/197
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A rotor assembly for an electric machine, including a rotor core and a shaft, is connected to the rotor core for conjoint rotation, wherein a cooling channel arrangement is formed within the rotor assembly and includes a cooling channel, which extends within the shaft. The rotor assembly further includes a separation element which has a separation portion extending in the circumferential direction at an inner radius of the shaft, wherein the separation portion separates an interior of the shaft into a first shaft portion, in which the cooling channel extends, and into a second shaft portion, wherein the separation element includes a sealing device, which seals off the shaft portions with respect to one another.

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