Patent · US Active

Electric machine

US8729767B2 · kind B2 · utility

8Cited by

9References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Lin Feuerrohr · Rutesheim, DE
Karl-Juergen Roth · Schwieberdingen, DE
Tilo Koenig · Laufenburg (Baden), DE
Bruno Holzwarth · Schwieberdingen, DE

Key dates

Filing date	Mar 31, 2010
Grant date	May 20, 2014
Priority date	—
Expiry date	Nov 28, 2030

Classification

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

Abstract

An electric machine (1), particularly used as an electric motor, has a rotor (2) comprising a plurality of disks (4). A disk (4) of the rotor (2) is divided in a circumferential direction (5) into a plurality of disk sectors (6, 7, 8) between which magnetic pockets (9, 10) are designed. Furthermore, the disk (4) has an inner fastening collar (15) and connecting members (20, 23, 24) connecting the disk sectors (6, 7, 8) to the fastening collar (15). Such a connecting member (20) comprises a main web (21), a side arm (30) branching off the main rib (21) in the circumferential direction (5), and a side arm (31) branching off the main web (21) opposite to the circumferential direction (5). High mechanical stability of the disk (4) can thus be ensured, wherein magnetic flow losses are reduced.

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