Three-phase rotary electrical machine and manufacturing method thereof
US8853910B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Apr 23, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-phase rotary electrical machine including a stator including a stator core including split cores, a rotor, a bobbin attached to each of the split cores, a winding being wound around each split core to which the bobbin is attached, and a bobbin unit including three of the bobbins which are arranged in a circumferential direction of a rotation axis as one unit, wherein the bobbin positioned at a center of the bobbin unit are formed in a bendable manner integrally with the bobbins positioned adjoining to the bobbin positioned at the center, the bobbin unit is sealed with the bobbin unit positioned adjoining thereto, and a cooling passage extending in the axial direction is provided at each clearance between the windings for three phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.