Electric motor
US9343934B2 · kind B2 · utility
10Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2012 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jan 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor has a wound stator and a permanent magnet rotor. The rotor includes a shaft, a hub fixed on the shaft, a plurality of rotor core segments and magnets fixed around the hub. The rotor core segment includes at least two rotor blocks inwardly extending from the innermost portion thereof. The hub includes a plurality of hub blocks equidistantly and outwardly extending from the outer surface thereof. The rotor blocks of each rotor core segment engage with at least one hub block to fix the rotor core segment to the hub. The number of rotor blocks is greater than the number of hub blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.