Motor rotor and compressor provided with the same
US8659195B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jul 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is provided a compressor provided with a motor rotor capable of suppressing a decrease in oil separation efficiency and avoiding a decrease in motor efficiency. A motor rotor (10) includes a substantially cylindrical rotor laminated steel plate including a permanent magnet therein. The rotor laminated steel plate includes a plurality of refrigerant gas holes (18) passing therethrough in the axial direction and a plurality of rivet holes (20) arranged in the circumferential direction and passing therethrough in the axial direction. At least one of the rivet holes (20) is used as a positioning hole (20b) to insert a positioning pin for positioning in the rotation direction at the time of rotor magnetization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.