Electronic device having a fan
US11078927B2 · kind B2 · utility
1Cited by
16References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Aug 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2200/201
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan having reduced discrete tone noise is disclosed. The fan includes a fan chassis having an air inlet and an air outlet formed open at an outer surface of the fan chassis; an impeller part provided in the fan chassis; a wall part forming an air passage, the air passage is provided in the fan chassis to allow air to be introduced through the air inlet by rotation of the impeller part to flow to the air outlet; and a resonator having a cavity part communicating with said air passage through a communication passage passing through the wall part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.