Permanent magnet rotor having magnet positioning and retaining means
US5175461A · kind A · utility
58Cited by
17References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1990 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Feb 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet rotor includes a rotor core having an axis of rotation and longitudinally extending radially projecting ribs. A plurality of arcuate magnetic elements are retained against an outer surface of the rotor by a cylindrical shell such that each magnet is disposed between a pair of the ribs. A hardenable adhesive is interposed between the outer surface of the core and the magnets and cooperates with the ribs and magnets to prevent rotational slippage of the magnets relative to the core during rotation of the rotor. Various embodiments utilize different techniques for retaining the components in assembled relation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.