Cooling device with temperature sensor failure detection
US9516787B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Mar 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a cooling device which can perform cooling with suppressed power consumption and noise even when temperature sensor is in failure without increasing cost.The cooling device includes a temperature estimation unit which, if a failure is detected in at least one of heat source temperature sensors (HSTSs) measuring temperature of the heat sources (HSs), estimates a value to have been measured by the failed HSTS based on measured values by the HSTSs not in failure, a measured value by an exhaust temperature sensor measuring an exhaust temperature which is temperature of an air outlet for discharging heat generated by HSs from a housing containing the HSs, and information representing a temperature distribution characteristic within the housing; and a rotational frequency calculation unit which calculates a rotational frequency of a cooling fan which rotates based on the estimated value and the measured values by the HSTSs not in failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.