Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/113850
Kind Code:
A1
Abstract:
Provided is an air-conditioning device that can perform defrosting efficiently without stopping heating performed by an indoor unit. This air-conditioning device is equipped with: a primary circuit 50, which circulates a refrigerant, and in which a compressor 1, indoor heat exchangers 3b and 3c, first flow volume control devices 4b and 4c, and multiple parallel heat exchangers 5-1 and 5-2 connected in parallel to each other are sequentially connected by pipes; first defrosting pipes 39-1 and 39-2, which divert a portion of the refrigerant discharged by the compressor 1 and cause that refrigerant to flow into the parallel heat exchanger 5-1 or 5-2 to be defrosted among the multiple parallel heat exchangers 5-1 and 5-2; a boundary heat exchanger 11 provided at the boundary of the multiple parallel heat exchangers 5-1 and 5-2; a first bypass pipe 37 that diverts a portion of the refrigerant discharged by the compressor 1 and causes that refrigerant to flow into the boundary heat exchanger 11; and a second bypass pipe 38 that causes the refrigerant flowing from the boundary heat exchanger 11 to flow into the primary circuit 50.
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Inventors:
WATANABE KAZUYA (JP)
WAKAMOTO SHINICHI (JP)
TAKENAKA NAOFUMI (JP)
TAMURA NAOMICHI (JP)
ARIYAMA TADASHI (JP)
YAMASHITA KOJI (JP)
HATOMURA TAKESHI (JP)
WAKAMOTO SHINICHI (JP)
TAKENAKA NAOFUMI (JP)
TAMURA NAOMICHI (JP)
ARIYAMA TADASHI (JP)
YAMASHITA KOJI (JP)
HATOMURA TAKESHI (JP)
Application Number:
PCT/JP2015/050692
Publication Date:
July 21, 2016
Filing Date:
January 13, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F24F11/02; F25B47/02
Foreign References:
| JP2011075207A | 2011-04-14 | |||
| US5315836A | 1994-05-31 | |||
| JP2014119165A | 2014-06-30 | |||
| JP2008064381A | 2008-03-21 | |||
| JPS50104530U | 1975-08-28 | |||
| US4565070A | 1986-01-21 | |||
| US5771699A | 1998-06-30 |
Other References:
See also references of EP 3246634A4
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)
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