Motor rotor and manufacturing method thereof
US6998748B2 · kind B2 · utility
2Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2003 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jul 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor rotor includes a magnetic yoke and a rubber magnet located within the magnetic yoke. At least one pattern is formed on a surface of the rubber magnet, which faces the magnetic yoke. The manufacturing method of the motor rotor is to provide a rubber magnet having flat surfaces, and at least one pattern is formed on a surface of the rubber magnet. The rubber magnet is curved to correspond with the inner surface of the magnetic yoke by the way that the patterned surface of the rubber magnet faces outside. The rubber magnet is put inside the magnetic yoke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.