Fan and control method thereof
US10364817B2 · kind B2 · utility
4Cited by
5References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Jul 22, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fan includes a motor, a plurality of fan blades coupled to the motor and rotatable by the motor, a light source positioned to be independent from rotation of the plurality of fan blades, and a processor controlling the first light source to turn on/off with a frequency determined at least based on a relation with respect to a rotational speed of the plurality of fan blades. Thereby, a visually static view or a slowly rotating view of the fan blades is displayed while the fan blades are operating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.