Title:
VENTILATION DEVICE AND AIR CONDITIONING SYSTEM
Document Type and Number:
Japanese Patent JP2014173799
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a ventilation device which calibrates output of a COsensor with good accuracy, and which keeps COconcentration in room air at a reference value or less.SOLUTION: A ventilation device includes: a COsensor 8 for measuring carbon dioxide concentration in a room; calibration means 82 for calibrating output of the COsensor 8 based on a measured value of the COsensor 8 during a measurement time period; air amount control means 13 for performing a ventilation operation by controlling an exhaust fan 7 and an air supply fan 4; and absence of a person determination means (clock means 14 and control circuit 10) for determining presence/absence of a person in the room. When it is determined that there is no one in the room by the absence of a person determination means, the control circuit 10 performs a forcible ventilation operation by making the exhaust fan 7 and the air supply fan 4 operate, and the calibration means 82 performs calibration processing of the output of the COsensor 8 after the forcible ventilation operation.
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Inventors:
MORITA KATSUHIKO
Application Number:
JP2013047923A
Publication Date:
September 22, 2014
Filing Date:
March 11, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F24F11/02; F24F7/007
Domestic Patent References:
| JP2001153417A | 2001-06-08 | |||
| JP2007003160A | 2007-01-11 | |||
| JPH051929U | 1993-01-14 | |||
| JP2012002366A | 2012-01-05 | |||
| JP2002327937A | 2002-11-15 | |||
| JP2007024420A | 2007-02-01 | |||
| JPH06213494A | 1994-08-02 | |||
| JPH0428942U | 1992-03-09 | |||
| JP2004148989A | 2004-05-27 | |||
| JP2002103952A | 2002-04-09 | |||
| JP2006052933A | 2006-02-23 |
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Ajima
Norio Takanashi
Santo Rare [origin]
Takashi Ogawa
Murata 健誠
Hajime Otani
Change Yukie
Kiyoshi Ajima
Norio Takanashi
Santo Rare [origin]
Takashi Ogawa
Murata 健誠
Hajime Otani
Change Yukie