Rotor
US11424651B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 3, 2018 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/19
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor that includes a shaft; a rotor core that is attached to the shaft and that is configured of a plurality of electric steel plates that are stacked; and a permanent magnet that is embedded in the rotor core, wherein: a coolant supply port that supplies a coolant to the rotor core is provided in the shaft, and at least two electric steel plates of the plurality of electric steel plates each include a first portion that has a first thickness in a rotational axis direction and a second portion that has a second thickness in the rotational axis direction, which is thinner than the first portion, the second portion extending in a radial direction and configuring a flow path through which the coolant supplied from the coolant supply port of the shaft flows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.