Title:
OUTDOOR UNIT AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/095115
Kind Code:
A1
Abstract:
An outdoor unit (2) comprises a first flow path (F1), a second flow path (F2), and a notification device (101). A compressor (10) and a condenser (20) are arranged in the first flow path (F1). The second flow path (F2) branches off from a plurality of branch points (BP1 to BP3) of the first flow path (F1) downstream from the condenser (20) and then merges at a confluence point (A) to return the refrigerant that has passed through the condenser (20) to the compressor (10). A first opening-closing valve (V1) is located between a first gas-liquid separation structure (711) and the confluence point (A). A second opening-closing valve (V2) is located between a second gas-liquid separation structure (712) and the confluence point (A). A flow rate adjustment device (73) and a refrigerant heating device (75) are arranged in the second flow path (F2) in order from the confluence point (A). A temperature sensor (122) detects the temperature of the refrigerant that has passed through the refrigerant heating device (75). The notification device (101) provides notification of a refrigerant shortage according to the output of the temperature sensor (122).
Inventors:
TSUKIYAMA RYO (JP)
Application Number:
PCT/JP2019/044280
Publication Date:
May 20, 2021
Filing Date:
November 12, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F25B1/00; F25B45/00
Domestic Patent References:
| WO2013027232A1 | 2013-02-28 |
Foreign References:
| JP2018105532A | 2018-07-05 | |||
| JPH0868576A | 1996-03-12 | |||
| JPH05288438A | 1993-11-02 | |||
| JPH06101911A | 1994-04-12 | |||
| JPS636369A | 1988-01-12 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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