Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/009924
Kind Code:
A1
Abstract:
An air conditioning device (100) includes a first cycle unit (1), a second cycle unit (2), and a control device (3). In the first cycle unit (1), a first refrigerant circulates through a compressor (11), a first heat exchanger (13), a decompression device (15), and a second heat exchanger (16) in a first circulation direction. In the second cycle unit (2), a second refrigerant containing water circulates through a pump (21), the second heat exchanger (16), and a load device (22) in this order. The first cycle unit (1) includes a switch valve (12) connected between a discharge port of the compressor (11) and the second heat exchanger (16). When a first condition indicating freezing of the second refrigerant is met, the control device (3) controls the switch valve (12) to supply the first refrigerant discharged from the discharge port of the compressor (11) to the second heat exchanger (16) without passing through the first heat exchanger (13) and the decompression device (15).
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Inventors:
MATSUSHITA TADAYUKI (JP)
OCHIAI YASUTAKA (JP)
ICHIKAWA NAOHIRO (JP)
TANIGUCHI KATSUYA (JP)
OCHIAI YASUTAKA (JP)
ICHIKAWA NAOHIRO (JP)
TANIGUCHI KATSUYA (JP)
Application Number:
PCT/JP2019/028359
Publication Date:
January 21, 2021
Filing Date:
July 18, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
International Classes:
F25B47/02; F24F11/41
Domestic Patent References:
| WO2017221383A1 | 2017-12-28 |
Foreign References:
| JP2018066515A | 2018-04-26 | |||
| JP2017142039A | 2017-08-17 | |||
| JP2008116152A | 2008-05-22 | |||
| JP5492523B2 | 2014-05-14 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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