Sleeve in end rings for permanent magnet rotor
US7812495B2 · kind B2 · utility
7Cited by
49References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2008 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | May 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet rotor for an electric motor may include a rotor assembly that will hold the magnets in place. A pair of rings is added to the sleeve to tightly engage and press against the end plates and the magnets. This configuration provides additional securement against axial and radially shifting of the magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.