Permanent magnet rotor
US9742230B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2015 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Nov 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2773
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet rotor including a rotor core and permanent magnets. The rotor core includes a plurality of magnetic induction blocks. A plurality of radial recesses are formed between every two adjacent magnetic induction blocks for mounting the permanent magnets. The magnetic induction blocks protrude at both sides of the opening of the radial recesses to form hook blocks. The permanent magnets include a first permanent magnet and a second permanent magnet. The first permanent magnet includes a north pole strong magnetic surface and a south pole weak magnetic surface. The second permanent magnet includes a north pole weak magnetic surface and a south pole strong magnetic surface. The first permanent magnet and the second permanent magnet are alternately disposed in the radial recesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.