Title:
REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2021/229766
Kind Code:
A1
Abstract:
A refrigerator (R) is provided with: a refrigerant circuit (C1); a refrigerant shortage detection circuit (C2); and a control device (CD). The refrigerant circuit (C1) includes at least one compressor (1), a condenser (2), a liquid receiver (3), a supercooling heat exchanger (4), a pressure reduction device (6), an evaporator (7), and an accumulator (8). The refrigerant shortage detection circuit (C2) includes a capillary tube (11), a heater (12), an inlet temperature sensor (THa), and an outlet temperature sensor (THb). The control device (CD) is configured to calculate an evaluation value on the basis of a refrigerant inlet temperature detected by the inlet temperature sensor (THa) and a refrigerant outlet temperature detected by the outlet temperature sensor (THb) and to determine whether or not there is a shortage in the refrigerant amount on the basis of the calculated evaluation value.
Inventors:
ABASTARI (JP)
FUJIMOTO TOMOYA (JP)
SATA HIROSHI (JP)
ISHIKAWA TOMOTAKA (JP)
FUJIMOTO TOMOYA (JP)
SATA HIROSHI (JP)
ISHIKAWA TOMOTAKA (JP)
Application Number:
PCT/JP2020/019337
Publication Date:
November 18, 2021
Filing Date:
May 14, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B43/00; F25B1/00; F25B49/02
Domestic Patent References:
| WO2013027232A1 | 2013-02-28 |
Foreign References:
| JP2005282885A | 2005-10-13 | |||
| JP2016050680A | 2016-04-11 | |||
| JP2004218865A | 2004-08-05 | |||
| JP2011122767A | 2011-06-23 | |||
| JPH06101911A | 1994-04-12 | |||
| JP2007139244A | 2007-06-07 | |||
| JPH05346271A | 1993-12-27 | |||
| JPS63169461A | 1988-07-13 | |||
| JP2018119746A | 2018-08-02 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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