DC brushless motor including cover portion with fan blades
US9800116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC brushless motor includes a housing including a plurality of attachment portions each of which is arranged to extend toward an apparatus, a base portion joined to the attachment portions, and a bearing holding portion joined to the base portion; a bearing member held by the bearing holding portion; a shaft supported by the bearing member to be rotatable about a central axis, and including a portion on one axial side to which blades that perform stirring in a heating chamber are joinable; a rotor holder fixed to the shaft; a rotor magnet held on an inside of a cylindrical portion of the rotor holder; a stator arranged radially inside the rotor magnet; and a circuit board electrically connected with the stator, and arranged axially opposite the opening of the rotor holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.