Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/003490
Kind Code:
A1
Abstract:
This air conditioning device has: a refrigerant circuit that circulates a refrigerant and is connected to a compressor, a heat-source-side heat exchanger, an expansion valve, and a load-side heat exchanger; an indoor fan that supplies air to the load-side heat exchanger; a discharge pressure sensor that detects the discharge pressure of the refrigerant discharged from the compressor; an intake pressure sensor that detects the intake pressure of the refrigerant taken in by the compressor; a determination means that determines whether the refrigerant pressure has reached a protection pressure on the basis of whether the discharge pressure has risen to a high-pressure upper limit value or whether the intake pressure has risen up to a low-pressure upper limit value; and a control means that, when the determination means determines that the refrigerant pressure has reached the protection pressure, lowers the refrigerant pressure by controlling the indoor fan and an actuator other than the indoor fan.
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Inventors:
HARA YUKI (JP)
Application Number:
PCT/JP2018/024787
Publication Date:
January 02, 2020
Filing Date:
June 29, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F24F11/32
Foreign References:
| JPH09243185A | 1997-09-16 | |||
| JP2005055053A | 2005-03-03 | |||
| JPH03251637A | 1991-11-11 | |||
| JP2002277099A | 2002-09-25 | |||
| JP2005076933A | 2005-03-24 | |||
| JP2016166710A | 2016-09-15 | |||
| JP2015124958A | 2015-07-06 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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