Patent · US Active

Reluctance rotor with mechanical stabilizing

US9800125B2 · kind B2 · utility

4Cited by

7References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Marion Ballweg · Bad Königshofen im Grabfeld, DE
Klaus Büttner · Hollstadt, DE
Klaus Kirchner · Nidderau, DE

Key dates

Filing date	Mar 13, 2015
Grant date	Oct 24, 2017
Priority date	—
Expiry date	Mar 13, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60L2220/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A reluctance rotor for an electric machine includes rotor lamination layers made of a ferromagnetic material, wherein each rotor lamination layer has a flux barrier formed by a recess in the rotor lamination layer. In order to toughen the reluctance rotor for a high torque and a high rotational speed, the reluctance rotor has an intermediate part with recesses arranged between a first and a second rotor lamination layer, and separators delimiting the recesses from one another. The recesses of the intermediate part and the separators are arranged axially between the flux barriers, wherein the recesses of the intermediate part and the flux barriers together delimit a space. The space is cast with a non-ferromagnetic casting compound.

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