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Patent Searching and Data


Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/186490
Kind Code:
A1
Abstract:
Provided is a highly reliable air conditioner that keeps an outdoor heat exchanger clean. A control unit (30) for an air conditioner (100) performs, as first control after processing to cause an outdoor heat exchanger (13) to function as an evaporator to freeze or condense the outdoor heat exchanger (13), control to increase the rotational speed of an outdoor fan (14) relative to that during the above processing while driving a compressor (11) or while bringing the compressor (11) into a stopped state, control to reduce the rotational speed of the compressor (11) relative to that during the above processing while driving the compressor (11), or control to increase the opening degree of an expansion valve (15) relative to that during the above processing while driving the compressor (11).

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Inventors:
SOTOME SATOSHI (JP)
Application Number:
PCT/JP2020/011357
Publication Date:
September 23, 2021
Filing Date:
March 16, 2020
Export Citation:
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Assignee:
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (JP)
International Classes:
F24F11/41; F24F11/86; F24F11/871
Domestic Patent References:
WO2018008108A12018-01-11
WO2010032430A12010-03-25
Foreign References:
JP2013096661A2013-05-20
JP2017003158A2017-01-05
JP2019138599A2019-08-22
JPH02259352A1990-10-22
CN105588267A2016-05-18
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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