Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/017036
Kind Code:
A1
Abstract:
A refrigeration cycle device (100) comprises a refrigerant circuit through which a refrigerant circulates. The refrigerant circuit includes a compressor (1), a first flow path switching unit (2), an outdoor heat exchanger (3), a pressure reducing unit (4), an indoor heat exchanger (5), and a second flow path switching unit (6). The outdoor heat exchanger has a plurality of first flat heat transfer tubes (7A), a plurality of second flat heat transfer tubes (7B), and a plurality of third flat heat transfer tubes (7C). The ends at one side of the plurality of flat heat transfer tubes in a second direction (X) are equal in number to the other ends of the plurality of flat heat transfer tubes in the second direction. The plurality of flat heat transfer tubes are arranged in one row in a third direction (Y), which is perpendicular to a first direction (Z) and the second direction. The second flow path switching unit switches between a third state and a fourth state. In the third state, the plurality of first flat heat transfer tubes and the plurality of third flat heat transfer tubes are connected in order and in series, and the plurality of second flat heat transfer tubes and the plurality of third flat heat transfer tubes are connected in order and in series. In the fourth state, the plurality of first flat heat transfer tubes, the plurality of second flat heat transfer tubes, and the plurality of third flat heat transfer tubes are connected together in parallel.
Inventors:
MATSUDA TAKUYA (JP)
Application Number:
PCT/JP2018/027334
Publication Date:
January 23, 2020
Filing Date:
July 20, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B13/00; F25B39/00; F25B41/00
Domestic Patent References:
| WO2018047331A1 | 2018-03-15 | |||
| WO2018047416A1 | 2018-03-15 | |||
| WO2015063853A1 | 2015-05-07 |
Foreign References:
| JP2014112031A | 2014-06-19 | |||
| US20160178249A1 | 2016-06-23 | |||
| JP2017053518A | 2017-03-16 | |||
| KR20140013696A | 2014-02-05 | |||
| JPS606988U | 1985-01-18 | |||
| JP2012163328A | 2012-08-30 | |||
| JP2016205744A | 2016-12-08 |
Other References:
See also references of EP 3825628A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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