Rotor-stator structures including boost magnet structures for magnetic regions in rotor assemblies disposed external to boundaries of conically-shaped spaces
US8330316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Mar 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2773
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various embodiments relate generally to electrodynamic machines and the like, and more particularly, to rotor assemblies and rotor-stator structures for electrodynamic machines, including, but not limited to, outer rotor assemblies. In some embodiments, a stator assembly including field pole members arranged about an axis of rotation and including pole faces at the ends of the field pole members, subsets of the pole faces being disposed within a boundaries of conically-shaped spaces having apexes disposed on the axis of rotation. The rotor assemblies include interior regions in which the subsets of the pole faces are disposed, the interior regions having surfaces external to the boundaries of the conically-shaped spaces. The rotor assemblies also include subsets of magnets interleaved circumferentially with the subsets of magnetically permeable structures and boost magnets disposed adjacent the subsets of magnetically permeable structures. Further, rotor assemblies include flux conductor shields disposed adjacent the boost magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.