Permanent magnet rotor with interfit cage structure
US4591749A · kind A · utility
30Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1985 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Mar 21, 2005 |
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, wherein a magnet cage includes a plurality of equally spaced, longitudinally extending, selectively shaped legs, a sleeve mounted within the inner surfaces of the legs, and a shaft press fitted through the sleeve. A plurality of wedge-shaped magnets are inserted between adjacent legs around the sleeve, retained by the shapes of adjacent leg surfaces. A cover plate having chamfered slots is mounted on the leg ends against the magnets. The ends of the legs are staked in the chamfered slots to secure the rotor assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.