Rotary electrical machine with stator core having powder bodies within holes
US11652374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Apr 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary electrical machine is equipped with a rotor that is rotatably supported, and a stator having a stator core that is disposed coaxially with the rotor. The stator core is configured as a plurality of stacked steel plates, and has a yoke portion that is of annular shape, a plurality of teeth extending radially from the yoke portion, and slots between adjacent teeth. A stator winding is wound in the slots. The yoke portion has holes that extend in the stacking direction of the steel plates, at positions of radial-direction extension of the slots, and molded powder bodies formed from a magnetic powder are provided within the holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.