Patent · US Active

Rotor of reduced weight for an electric machine

US8188631B2 · kind B2 · utility

1Cited by

4References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christoph Balzer · Berlin, DE
Karsten Brach · Berlin, DE
Christian Meyer · Karlsruhe, DE
Andre Schlawitz · Berlin, DE
Ingo Schüring · Berlin, DE

Key dates

Filing date	Apr 19, 2010
Grant date	May 29, 2012
Priority date	—
Expiry date	Jul 29, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A rotor for an electrical machine includes a first shaft part and a second shaft part, which is arranged separately from the first shaft part. A first supporting element is connected in a manner fixed against rotation to the first shaft part, and a second supporting element is connected in a manner fixed against rotation to the second shaft part. The rotor has a yoke which connects the first supporting element to the second supporting element and includes a plurality of laminates arranged one behind the other, and which has cutouts extending in the direction of the axis of rotation in the interior of the yoke, and permanent magnets arranged in the cutouts. The yoke has holes extending in the direction of the axis of rotation, with tensioning pins extending through the holes in the yoke to brace the laminates.

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