Motor-noise absorbing apparatus of vacuum cleaner
US8046869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2007 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Aug 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A motor-noise absorbing apparatus of a vacuum cleaner is disclosed. The motor-noise absorbing apparatus includes a body seated and fixed on a peripheral part of an opening of a motor housing to close between the motor housing and a stator core and, thus, to restrict an amount of the air discharged between the motor housing and the stator core, a first air discharging part formed in the middle of the body, so that most of the air comes out of the guide vein is discharged between the stator core and a rotor, and at least one second air discharging part formed to penetrate a peripheral part of the body, so that a portion of the air coming out of the guide vein is discharged between the motor housing and the stator core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.