Title:
FREEZING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/248923
Kind Code:
A1
Abstract:
A first heat exchanger (13), a compressor (12), and an expansion valve (15) provided to a freezing apparatus (R1) are disposed outdoors and are connected to a first pipe (11) for circulating a first working medium (outdoor-side circuit (10)). A second heat exchanger (23) provided to the freezing apparatus (R1) is disposed indoors and is connected to a second pipe (21) for circulating a second working medium to the second heat exchanger (indoor-side circuit (20)). The freezing apparatus (R1) is provided between the first pipe (11) and the second pipe (21), is disposed outdoors, and is further provided with a secondary heat exchanger (30) that performs mutual heat exchange between the first working medium and the second working medium. The first working medium contains at least a fluoroolefin, and the second working medium does not contain a fluoroolefin. Accordingly, even when a disproportionation reaction occurs in the fluoroolefin, it is possible to favorably avoid the risk of the influence thereof from reaching indoors.
Inventors:
HONMA MASAYA
SATOU KOUJI
SATOU KOUJI
Application Number:
PCT/JP2023/022264
Publication Date:
December 28, 2023
Filing Date:
June 15, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F25B1/00; F25B7/00
Domestic Patent References:
| WO2015140872A1 | 2015-09-24 | |||
| WO2018074452A1 | 2018-04-26 | |||
| WO2015136703A1 | 2015-09-17 | |||
| WO2015140873A1 | 2015-09-24 |
Foreign References:
| JP2021148339A | 2021-09-27 | |||
| JP2001263801A | 2001-09-26 | |||
| JP2009041860A | 2009-02-26 | |||
| JP2019163864A | 2019-09-26 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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