Single-phase synchronous motor comprising a two-pole permanent-magnet rotor
US4714851A · kind A · utility
19Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | May 21, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A single-phase synchronous motor comprises a two-pole permanent-magnet rotor (5) between two electromagnetically excited stator coils (9). At the location of the median plane (33) parallel to the direction of magnetization (37) parallel to the direction of the permanent-magnet rotor (5) has a shape which deviates from a cylindrical shape and the dimension of the permanent-magnet rotor (5) in the direction of magnetization (37) is largest near the median plane (33).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.