Motor with an air-core coil and back yoke to reduce eddy current losses
US12362609B2 · kind B2 · utility
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1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Apr 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor includes a rotor including a shaft centered on a central axis extending vertically, a bearing that supports the shaft, an air-core coil that is radially outward of the rotor and extends in an axial direction, and a back yoke that includes an axially extending shape with a linear portion having a coil shape, and includes an inner peripheral surface to which the air-core coil is fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.