Rotating electric machine
US11283332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jun 10, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a rotating electric machine, a rotor core has a rotor core cooling hole under a state of being coupled to a first gap at a position on a radially inner side with respect to a center portion of a first inner wall surface in a length direction. The rotor core has a radially-outer-side refrigerant flow path formed under a state of being coupled to a radially-outer-side end portion of the first gap. A first end plate has a communication path formed so as to extend from an inner end surface of the first end plate to the rotor core cooling hole. A second end plate has a discharge path formed so as to allow the radially-outer-side refrigerant flow path to communicate with an outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.