Electric device including an electric fan and a control unit for controlling the electric fan
US9377026B2 · kind B2 · utility
1Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Apr 15, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2207/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electric device has a casing with an air-inlet and an air-outlet, a main unit disposed inside the casing, a first temperature sensor for detecting the temperature inside the casing, a second temperature sensor for detecting the temperature outside the casing, an electric fan, and a control unit. The control unit rotates the electric fan at the time of the low-temperature startup such that the temperature detected by the first temperature sensor is lower than a preset first threshold value, while the temperature detected by the second temperature sensor is higher than the temperature detected by the first temperature sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.