Forced air cooling of vacuum motor control
US10164505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jan 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor assembly is provided for powering a blower operable to generate fluid flow. The motor assembly includes a motor, a controller assembly, and a flow director. The motor includes a rotor rotatable about an axis. The rotor includes a rotatable support body, a plurality of arcuately spaced apart magnets, and a magnet retention ring at least in part securing the magnets relative to the support body. The controller assembly includes a controller and a controller case at least substantially housing the controller. The controller extends lengthwise to present opposite first and second sides at least in part spaced from the controller case. The flow director and the controller case cooperatively direct fluid received from the blower along a flow path that at least in part extends along each of the first and second sides of the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.