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Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/138534
Kind Code:
A1
Abstract:
An air-conditioning device comprises: an indoor unit; a filter that is arranged on the outside of a suction opening of the indoor unit, and that removes foreign matter from return air from a living space into which the indoor unit blows conditioned air; an outside air intake opening for supplying outside air to the suction opening; a first temperature sensor that is arranged on the inside of the suction opening, and that measures the temperature of the suction air prior to being air-conditioned; a second temperature sensor arranged in the living space; and a control unit having a clogging determination unit for determining that the filter has become clogged when a difference between the temperature measured by the first temperature sensor and the temperature measured by the second temperature sensor is equal to or greater than a threshold value.

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Inventors:
MICHIKAMI KAZUYA (JP)
Application Number:
PCT/JP2018/000619
Publication Date:
July 18, 2019
Filing Date:
January 12, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F24F11/88; F24F11/89; F24F110/00
Domestic Patent References:
WO2007004557A12007-01-11
Foreign References:
JP2006090595A2006-04-06
JPH0942744A1997-02-14
JP2013164190A2013-08-22
JPH08261540A1996-10-11
US9702577B12017-07-11
US20130158717A12013-06-20
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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