Electric motor
US8350433B2 · kind B2 · utility
0Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2012 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Feb 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
It comprises stator including stator core having yoke and a plurality of teeth protruded from yoke, which is formed with slots between adjacent teeth, and rotor having rotor core and permanent magnet formed with a plurality of magnetic poles, which confronts tip ends of teeth via gaps, wherein rotor core is formed by rotor core materials circumferentially equally divided into the predetermined number of divisions, and the least common multiple being N for the number of slots and the number of magnetic poles and the least common multiple being M for the number of slots and the number of divisions, then N is equal to M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.