Patent · US Expired

Rotor of an electrical machine

US7649293B2 · kind B2 · utility

4Cited by

6References

26Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Klaus Maldener · Achern, DE
Andreas Wehrle · Durbach, DE
Gerd Walter · Schrobenhausen, DE

Key dates

Filing date	Mar 17, 2005
Grant date	Jan 19, 2010
Priority date	—
Expiry date	Mar 17, 2025

Classification

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

Abstract

The rotor (1) of an electrical machine (10), having at least one permanent magnet (3), which is embodied as a hollow cylinder (5) and which has axial contact faces (20) that cooperate with corresponding axial clamping faces (22) of at least one retaining element (4), with which element the permanent magnet (3) is secured to the rotor (1), in which at least one of the clamping faces (22) has a knurling (46) extending in the radial direction.

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