Dual rotor-type motor having improved stator structure, and compressor comprising same
US12046953B2 · kind B2 · utility
0Cited by
7References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 30, 2019 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Nov 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual rotor-type motor includes a stator having a coil wound therearound, an outer rotor, and an inner rotor. The stator includes inner teeth facing the inner rotor, and outer teeth facing the outer rotor, and the inner teeth are misaligned in a rotating direction by as much as an angle with respect to the outer teeth, which may enable the reduction of a torque ripple to a satisfying level, even without having to change the design of the stator structure into a complicated form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.