Title:
OUTDOOR UNIT OF REFRIGERATION DEVICE AND REFRIGERATION DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2020/161803
Kind Code:
A1
Abstract:
A refrigeration device (100) comprises an outdoor unit (101) and an indoor unit (102). The outdoor unit (101) comprises a first compressor (1), a second heat exchanger (2), a reversing valve (7), and a refrigerant volume adjustment mechanism (10). In a freezing mode, the reversing valve (7) connects the first compressor (1) so that a first refrigerant flows in a forward direction toward a first expansion valve (3) via the first compressor (1) and the second heat exchanger (2). In a defrosting mode, the reversing valve (7) connects the first compressor (1) so that the first refrigerant flows from the first compressor (1) to a first heat exchanger (4) and flows in a reverse direction from the first expansion valve (3) to return to the first compressor (1) via the second heat exchanger (2). The refrigerant volume adjustment mechanism (10) is configured so that the circulating volume of the first refrigerant is adjusted in the defrosting mode.
Inventors:
ISHIKAWA TOMOTAKA (JP)
ISHIHARA NOBUYA (JP)
ISHIHARA NOBUYA (JP)
Application Number:
PCT/JP2019/004076
Publication Date:
August 13, 2020
Filing Date:
February 05, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B47/02
Foreign References:
| JP2013002678A | 2013-01-07 | |||
| JPH06341741A | 1994-12-13 | |||
| JPH03177766A | 1991-08-01 | |||
| JP5595245B2 | 2014-09-24 | |||
| JP5595245B2 | 2014-09-24 |
Other References:
See also references of EP 3922928A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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