Radially embedded permanent magnet rotor having magnet retention features and methods thereof
US9362792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2012 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Nov 1, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes a substantially cylindrical rotor core including an outer edge, an inner edge, and opposed first and second ends. The rotor further includes a first wall and a second wall defining at least one radial aperture extending radially through the rotor core. The rotor further includes at least one permanent magnet positioned within the at least one radial aperture. A first indentation is formed in one of the at least one permanent magnet and the first wall, the first indentation defining a first space between the at least one permanent magnet and the radial aperture first wall. The rotor further includes a first material positioned within the first space, the material configured to substantially prevent movement of the permanent magnet relative to the at least one radial aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.