Patent · US Active

Cooling of an active part of an electric machine

US10236748B2 · kind B2 · utility

0Cited by

2References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Marco Festa · Falkensee, DE
Matthias Centner · Berlin, DE
Ilja Sabelfeld · Bern, CH

Key dates

Filing date	Mar 12, 2015
Grant date	Mar 19, 2019
Priority date	—
Expiry date	Feb 22, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02K9/223
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An active part of an electric machine includes at least two teeth, each having a magnetically permeable material and protruding from a lateral surface of the active part in a radial direction. Each tooth has an open recess in a plane spanned by a substantially radial direction and a direction substantially along an axis of rotation. A winding groove is arranged between the two teeth substantially along an axis of rotation of the active part for receiving an electrical winding. Arranged at least partially in the open recess is a thermally conductive element having a thermally conductive material with a thermal conductivity which is greater than a thermal conductivity of the magnetically permeable material.

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