Permanent magnet synchronous motor rotor
US4358696A · kind A · utility
36Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Aug 19, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet rotor configuration which produces four magnetic poles utilizing two sets of symmetrically-disposed permanent magnets. The slots carrying the magnets exhibit a truncated V-shaped configuration, extending from points on the periphery of the rotor to meet the ends of a straight, central portion which lies parallel to a tangent to the rotor shaft. A short magnetic bridge interrupts the center of each slot, the slots being disposed generally symmetrically upon opposite sides of the rotor shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.