Electric step motor
US4330727A · kind A · utility
21Cited by
2References
5Claims
0Family size
Inventor
Key dates
| Filing date | Dec 27, 1979 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Dec 27, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric step motor has a disc-shaped, axially magnetized rotor part exhibiting 2 N alternating magnetic poles on either side thereof, and a stator comprising two groups of elementary magnetic circuits each circuit forming an air gap for co-operation with said magnetized rotor part. Each elementary circuit is coupled with at least one electric coil of a plurality of electric coils, each coil being coupled with a plurality of elementary circuits of one of the groups of elementary circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.