Rotor
US8922083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jun 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A laminated core of a rotor includes an inner core portion and a plurality of outer core portions. The inner core portion axially extends in a cylindrical shape in a region located more radially inward than magnets. The outer core portions are arranged in a circumferential direction in a region located more radially outward than the inner core portion. The plurality of outer core portions and a plurality of the magnets are alternately arranged in the circumferential direction. Accordingly, magnetic flux generated from a pair of magnetic pole surfaces of the plurality of magnets can be effectively used. In addition, the laminated core includes caulking portions in each of the inner core portion and the plurality of outer core portions. Accordingly, a plurality of thin plate cores are firmly fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.