PROBLEM TO BE SOLVED: To provide a refrigeration cycle device capable of controlling the opening of an electric expansion valve to a proper opening while suppressing an increase in possibility that reliability of the electric expansion valve is spoiled even in a load abrupt changing environment and to provide such an air conditioning device.SOLUTION: A refrigeration cycle device according to the present invention comprises a compressor 11 which varies operation capacity, and a refrigerant circulation circuit 10 in which a first heat exchanger, pressure reduction means, and a second heat exchanger are connected in sequence. The pressure reduction means has a main pressure reduction part 30 where an electric expansion valve 32 varying an opening and a flow passage 31 are arranged, and a sub pressure reduction part 40 to which a plurality of flow passages 41, 42, and 43 differing in flow resistance of a refrigerant from one another are connected in parallel, and in which switching means of changing whether the refrigerant circulates in the plurality of flow passages 41, 42, and 43 is arranged, the main pressure reduction part 30 and the sub pressure reduction part 40 being connected in parallel.SELECTED DRAWING: Figure 1

    【課題】本発明は、負荷急変環境においても、電動膨張弁の信頼性が損なわれる可能性が高くなることを抑制しつつ、電動膨張弁の開度を適正な開度に制御することができる冷凍サイクル装置を得るものである。また、そのような空気調和装置を得るものである。【解決手段】本発明に係る冷凍サイクル装置は、運転容量を変化させる圧縮機11と、第1熱交換器と、減圧手段と、第2熱交換器と、が順次接続された冷媒循環回路10を備え、減圧手段は、開度を変化させる電動膨張弁32が流路31に配設された主減圧部30と、冷媒の流動抵抗が互いに異なる複数の流路41、42、43が並列に接続され、複数の流路41、42、43のそれぞれにおける冷媒の流通の有無を切り替える切替手段が配設された副減圧部40と、を有し、主減圧部30と副減圧部40とは、並列に接続されたものである。【選択図】図1


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    Title :

    REFRIGERATION CYCLE DEVICE AND AIR CONDITIONING DEVICE


    Additional title:

    冷凍サイクル装置、及び、空気調和装置


    Contributors:

    Publication date :

    2016-04-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / F24F Klimatisierung , AIR-CONDITIONING



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