Interior permanent magnet type rotor, permanent magnet type motor having the interior permanent magnet type rotor, and compressor having the permanent magnet type motor
US10615651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2017 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Apr 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An interior permanent magnet type rotor includes: a rotor core having a plurality of slots formed therein, the plurality of slots having a symmetric longitudinal sectional shape; and a plurality of permanent magnets respectively inserted into the plurality of slots, the plurality of permanent magnets having an asymmetric longitudinal sectional shape, wherein each of the plurality of permanent magnets includes: a top surface part; a bottom surface part formed opposite to the top surface part; and first and second side surface parts connecting the top surface part and the bottom surface part, wherein a first vertical part and a second vertical part, which are in contact with side surface parts of the slot, are formed in the first and second side surface parts, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.