IPM rotor
US11211838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2017 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jun 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2766
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to the present invention, provided is an IPM rotor of the present invention, which includes a plurality of core sheets, having hole portions configured to accommodate magnets and being laminated on one another, and the magnets are inserted in the hole portions. The IPM rotor includes a first core sheet having a spring plate portion provided to the hole portion, and a second core sheet having a recessed portion provided the hole portion. A protruding portion is provided to the hole portion of at least one of the plurality of the laminated core sheets. The protruding portion is provided to at least one of the hole portion of the first core sheet, the hole portion of the second core sheet, or a hole portion of a third core sheet to be further arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.