Rotor for rotary electric machine with reduced-mass interpolar structures
US8754561B2 · kind B2 · utility
1Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 2009 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jun 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor with poles in the form of claws, of a rotary electrical machine. This rotor comprises a plurality of interpolar magnetic assemblies. On a radial cross-sectional plane, a first total magnet surface of a section of the magnetic assembly is smaller than a second surface defined by the product of the radial height of a face (h) of the magnetic assembly (40) which faces towards the polar claw (44a), and the circumferential distance between the polar claws (44a, 44b) in the interpolar gap. The magnet has at least one recess which extends in an axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.