Pole retention configuration for electric machine rotors
US7911104B2 · kind B2 · utility
14Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | May 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2773
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A retention system in which rotor pole pieces are retained within complementarily shaped channels in a rotor hub, permanent magnets are secured between the pole pieces and within clamp members, and wedge-shaped pieces are used to apply positive locking forces along the axial length of each clamp member and of adjacent pole pieces. A curable resin preferably in disposed within gaps between the permanent magnets and the clamp members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.