Stator unit, motor, and fan motor
US10530213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Apr 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a fan motor, a stator unit of a motor that rotates an impeller includes an annular stator, the center of which is positioned on a central axis, and a housing including an accommodating portion that accommodates a part of a resin portion covering at least a part of the stator. At least one of a bottom face of the accommodating portion oriented to the stator in the axial direction and an inner side face of the accommodating portion oriented to an inner side in the radial direction is provided with a plurality of stepped portions. The stepped portions are different from each other in length in the axial direction when provided in the bottom face, and/or in length in the radial direction when provided in the inner side face. The bottom face, the inner side face, and the stepped portion are covered with the resin portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.