Plastic molded magnet for a rotor
US6765319B1 · kind B1 · utility
22Cited by
24References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2003 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor assembly for a brushless motor includes a core circumferentially affixed about a longitudinal surface of a shaft. A rotor magnet covers the entire outer surface of the core to seal the core within the magnet and to prevent exposure of the core to ambient conditions. The rotor magnet has a plurality of portions of alternating magnetic polarity and is formed of a plastic mixed with neodymium-iron-boron particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.