Synchronous rotary electric machine having hybrid-excitation rotor
US9160218B2 · kind B2 · utility
0Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2011 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Sep 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body. The circumferential polar section includes a third recess (E3), and a portion of the magnetic body forming a bridge having a height of around 0.7 mm to around 2 mm is retained between an apex of the recess and an outer pole face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.