Title:
HEAT SOURCE SIDE UNIT AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/129080
Kind Code:
A1
Abstract:
An outdoor unit (A) that constitutes a refrigeration circuit by being connected by piping to indoor units (B, C) comprises: a compressor (1) that compresses and discharges a refrigerant; a plurality of parallel heat exchangers (50) that perform heat exchange between air and the refrigerant; a first defrost pipe (15) that forms a channel to perform defrosting by diverting a portion of the refrigerant discharged by the compressor (1) making the same flow to the parallel heat exchanger (50) to be defrosted; a first throttling device (10) that depressurizes the refrigerant that passes through the first defrost pipe (15); a second throttling device (7) that regulates the pressure of the refrigerant that passes through the parallel heat exchanger (50) to be defrosted; and a controlling device (30) that controls the second throttling device (7) so that the pressure of the refrigerant passing through the parallel heat exchanger (50) to be defrosted is within a predetermined range and that determines when defrosting is complete on the basis of the degree of supercooling of the refrigerant.
More Like This:
| JPH07133973 | FREEZING APPARATUS |
| JPS63251781 | DEFROSTATION CONTROLLER |
Inventors:
TAKENAKA NAOFUMI (JP)
WAKAMOTO SHINICHI (JP)
WATANABE KAZUYA (JP)
YAMASHITA KOJI (JP)
HATOMURA TAKESHI (JP)
WAKAMOTO SHINICHI (JP)
WATANABE KAZUYA (JP)
YAMASHITA KOJI (JP)
HATOMURA TAKESHI (JP)
Application Number:
PCT/JP2014/073500
Publication Date:
September 03, 2015
Filing Date:
September 05, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B47/02; F25B1/00; F25B5/00
Domestic Patent References:
| WO2010082325A1 | 2010-07-22 | |||
| WO2012014345A1 | 2012-02-02 | |||
| WO2014020651A1 | 2014-02-06 |
Foreign References:
| JP2013036682A | 2013-02-21 | |||
| JPH08100969A | 1996-04-16 | |||
| JP2011158144A | 2011-08-18 | |||
| JPH07120116A | 1995-05-12 | |||
| JP2011102678A | 2011-05-26 | |||
| JP2006162240A | 2006-06-22 | |||
| JPH04143564A | 1992-05-18 |
Other References:
See also references of EP 3112781A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
Patent business corporation きさ patent trademark office (JP)
Download PDF: