Punching sheet used for manufacturing rotor and permanent magnet motor comprising rotor
US10312779B2 · kind B2 · utility
0Cited by
3References
8Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Jul 19, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Mar 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A punching sheet used for manufacturing a rotor, including an axle hole, an outer edge, and a plurality of mounting grooves for receiving permanent magnets. The axle hole is disposed at the center of the punching sheet, and the plurality of mounting grooves are disposed in the proximity of the outer edge of the punching sheet. The outer edge of the punching sheet includes a plurality of arcs which have equal length and are connected to one another, and a center of a circle corresponding to each arc deviates from the center of the axle hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.