Permanent magnet rotor with annular rib coupling
US7919893B2 · kind B2 · utility
1Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor rotor includes a hub having a peripheral wall. A metal ring includes an engaging portion. The metal ring is formed by bending a strip of metal plate to form a cylindrical ring. The metal plate includes first and second positioning portions on two ends thereof. The first and second positioning portions are coupled with each other to form the engaging portion. The metal ring is coupled to an inner peripheral face of the peripheral wall of the hub. A magnet ring is coupled to an inner peripheral face of the metal ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.