Patent · US Active

Electric machine having radial dividers for guiding cooling air

US8614528B2 · kind B2 · utility

6Cited by

4References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Benjamin Eichinger · Winkelhaid, DE
Thomas Hümer · Koblenzer Straße, DE
Jürgen Labermeier · Schwanstetten, DE
Carsten Mauss · Burglengenfeld, DE
Josef Niedermeyer · Hilpoltstein, DE
Ekkehard Ressel · Heilsbronn, DE
Sebastian Weiss · Oberasbach, DE

Key dates

Filing date	Jul 8, 2009
Grant date	Dec 24, 2013
Priority date	—
Expiry date	Nov 22, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric machine has a housing, a rotor shaft mounted in the housing, a rotor laminate stack arranged on the rotor shaft and having axial cooling channels and radial cooling channels, and a stator laminate stack having radial cooling channels which are open radially inwards and radially outwards and interact with the radial cooling channels of the rotor laminate stack. The housing has a lateral surface to delimit the housing interior in a radial direction and radial dividers arranged between end windings of the stator winding and the axial ribs, when viewed in the radial direction, and are spaced in the radial direction from the lateral surface delimiting the housing interior and forming tangential cooling air channels for the cooling air.

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