Rotor for an electric motor
US7247965B2 · kind B2 · utility
5Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Dec 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a rotor for an electric motor, especially an electric line-start motor, comprising spaces (4 to 7) which receive permanent magnets (10 to 13) and extend in an axial direction, and spaces (20 to 25) that accommodate conductor rods and extend in an axial direction. In order for the rotor to run as regularly as possible, the spaces (20 to 25) accommodating the conductor rods are provided with a substantially elongate cross-section in at least one sector of the rotor while being embodied in a curved manner along the longitudinal axis thereof in said sector when viewed from a cross-sectional perspective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.