Title:
REFRIGERATION CYCLE DEVICE AND AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/047831
Kind Code:
A1
Abstract:
This refrigeration cycle device connects a compressor, a condenser, an expansion valve, and an evaporator via pipes and has a refrigerant circuit for circulating a mixed refrigerant having a temperature gradient. The refrigeration cycle device also comprises: a two-phase-pipe temperature sensor that detects the heat-exchanger passage temperature of the mixed refrigerant which passes through the evaporator; and a control device that corrects the heat-exchanger passage temperature detected by the two-phase-pipe temperature sensor, determines whether to defrost the evaporator on the basis of the corrected temperature, and performs defrosting on the basis of said determination.
Inventors:
SAKAI MIZUO (JP)
MINEOKA TATSUYA (JP)
YAN KAKKO (JP)
MINEOKA TATSUYA (JP)
YAN KAKKO (JP)
Application Number:
PCT/JP2022/032911
Publication Date:
March 07, 2024
Filing Date:
September 01, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F25B47/02
Domestic Patent References:
| WO2018229864A1 | 2018-12-20 |
Foreign References:
| JPH08320158A | 1996-12-03 | |||
| JP2017053566A | 2017-03-16 | |||
| JP2021014962A | 2021-02-12 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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