APPARATUS AND METHOD OF USING THE STATOR COILS OF AN ELECTRIC MOTOR TO MAGNETIZE PERMANENT MAGNETS OF THE MOTOR ROTOR WHEN THE SPAN OF EACH STATOR COIL IS SMALLER THAN THE WIDTH OF EACH PERMANENT MAGNET POLE
US6903640B2 · kind B2 · utility
3Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Nov 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and its method of use enable magnetizing the permanent magnets of an electric motor rotor using the winding coils of the motor stator when the circumferential width of each rotor permanent magnet pole is larger than the circumferential width of each stator winding coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.