Self-cooled motor
US9800117B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jan 8, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-cooled motor includes a rotor holder including a cylindrical portion and a bottom plate portion, and configured to rotate with a shaft; a housing supporting a bearing and a stator; and at least one blade rotating together with the shaft to generate an air current traveling radially outward, at least a portion of each blade being located axially below the bottom plate portion of the rotor holder. The housing includes a base portion axially above the rotor holder and an outlet edge portion in the housing and between adjacent ones of the attachment portions, and configured to define a main air outlet axially below, the main air outlet connecting a space radially inside the housing and a space radially outside the housing with each other. The bottom plate portion of the rotor holder includes a rotor vent hole passing therethrough in an axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.