Rotor and rotary electric machine having the same
US9793768B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jul 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor has a projection part projected from an inner wall of a central hole part toward a central axis and a rib part defined between opening parts adjacent with each other in a circumferential direction. A first imaginary straight line is defined to extend from the central axis outward in a radial direction through a center of the projection part. The projection part is formed so that the first imaginary straight line passes the opening part. A second imaginary straight line is defined to extend from the central axis outward in the radial direction through a center of the rib part. The rib part is formed so that the second imaginary straight line passes a center of a pole part or an intermediate position between pole parts adjacent with each other in the circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.