Interior permanent magnet motor with shifted rotor laminations
US9634530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jul 30, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor comprises a first rotor lamination and a second rotor lamination. The first rotor lamination and the second rotor lamination are configured for defining, when joined into rotor assembly, a central axis of rotation and a plurality of interior magnet pockets disposed symmetrically about the central axis of rotation, each pocket of the plurality of interior magnet pockets is configured for housing and retaining a permanent magnet. A method of forming a rotor comprises forming a first rotor lamination and a second rotor lamination, rotating the second rotor lamination about an axis of symmetry of the second rotor lamination; and mating the first rotor lamination to the second rotor lamination such that a first notch of the first rotor lamination is disposed adjacent to the first notch of the second rotor lamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.