Rotor, electric motor and compressor
US12021414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2020 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Jul 27, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor, a motor and a compressor are provided. The rotor has multiple first punches and multiple second punches, which are stacked to form a rotor core of the rotor. Multiple openings are provided in each of the first punches and second punches along a circumferential direction of the rotor. The openings divide the first punches and the second punches into a rotor yoke and multiple pole caps. The pole caps are arranged around the outer circumference of the rotor yoke. The openings extend in an axial direction of the rotor core to form a plurality of slots. Multiple magnets are arranged in the slots in a one-to-one correspondence. Each first punch includes one or more connecting ribs. Each connecting rib is disposed between adjacent two pole caps. At least two of the openings of each second punch communicate with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.