Permanent magnet motor/generator
US6885122B2 · kind B2 · utility
5Cited by
16References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Jul 24, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2791
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor/generator (1) comprises a permanent magnets (3) having a V-shaped surface projecting in the center of a rotor (2). These permanent magnets (3) are disposed so that the V-shaped surface faces the center of the rotor (2). In this way, the permanent magnets (3) are prevented from sliding on the fitting surfaces (21) of the insertion holes (20), and the permanent magnets (3) can be fixed at predetermined positions. Further, magnetic losses caused by the rotor (2) can be reduced, and efficiency of the motor/generator can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.