Electric motor, fan, and air conditioner
US12323000B2 · kind B2 · utility
0Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Sep 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor includes a rotor having 10×N (N is an integer equal to or larger than 1) magnetic poles and a stator including 9×N teeth. A center tooth includes a first main body and a first tooth end portion. A downstream-side tooth includes a second main body and a second tooth end portion. The electric motor satisfies TCR>TBR, where TCR is a maximum length of the first upstream-side portion in the first upstream-side radial direction of the first tooth end portion and TBR is a maximum length of the second upstream-side portion in the second upstream-side radial direction of the second tooth end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.