Axial air-gap rotary electric machine having a different number of internal side layers and external side layers
US11251670B2 · kind B2 · utility
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1References
13Claims
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Key dates
| Filing date | Apr 23, 2014 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Nov 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An axial air-gap rotary electric machine includes a stator, a coil, and a bobbin. The bobbin includes a tube and a flange. The coil is wound on the outer periphery of the tube portion with regular winding. A number of turns of each of a plurality of layers wound around an external side of a last layer in contact with the flange is at least one less than a number of turns of each of a plurality of layers wound around an adjacent internal side of the last layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.