Rotor for an electric motor
US7183685B2 · kind B2 · utility
6Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Dec 12, 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, particularly an electric line-start motor, comprising axially accommodating spaces (4 to 6) for conductor rods, and axially extending receiving spaces (10, 11) for permanent magnets (14, 15), which are-designed and located in such a way that they generate a permanent magnet field with a magnet axis (22) and a neutral axis (23). The aim of the invention is to ensure that the rotor runs as regularly as possible during the operation of the electric motor. To this end, the diameter of the rotor along the magnet axis is larger than that along the neutral axis (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.