Rotating electric machine including rotor core with slots having protrusions
US9680341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2013 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a rotating electric machine that combines high efficiency and high strength reliability. The rotating electric machine includes: a stator having a coil and a stator core; and a rotor opposed to the stator with a gap intervening between the rotor and the stator, the rotor having permanent magnets 3 and a rotor core 2. The rotor is configured such that the permanent magnets are buried in V-shape at hole-shaped slots 4 disposed in the rotor core to form one pole, and the pole is formed in plurality in a circumferential direction. Each of the slots is an open slot partially opened toward an outer circumference of the rotor core. The slot is provided with a hook-shaped structure 6 to support corresponding one of the permanent magnets in an open portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.