PROBLEM TO BE SOLVED: To provide a refrigeration device capable of inexpensively improving durability of an electronic expansion valve (outdoor expansion valve) used in a refrigerant circuit.SOLUTION: An air conditioning device 1 for a vehicle has a refrigerant circuit R including an outdoor expansion valve 6. A controller is disposed to control energization to a coil of the outdoor expansion valve 6, and implements operation limiting control for limiting an operation of the outdoor expansion valve 6 so that a temperature of the coil of the outdoor expansion valve 6 is not over a prescribed value. The controller elongates a control period of the outdoor expansion valve 6 in the operation limiting control, and limits an energization ratio by suppressing an operation amount of the outdoor expansion valve 6 within a prescribed limit value.

    【課題】冷媒回路に使用される電子膨張弁(室外膨張弁)の耐久性を安価に改善することができる冷凍装置を提供する。【解決手段】車両用空気調和装置1は、室外膨張弁6を備えた冷媒回路Rを有する。室外膨張弁6のコイルへの通電を制御するコントローラを備え、このコントローラは、室外膨張弁6のコイルの温度が所定値を超えないよう、当該室外膨張弁6の動作を制限する動作制限制御を実行する。コントローラは動作制限制御において室外膨張弁6の制御周期を長くし、且つ、室外膨張弁6の動作量を所定の制限値以内に抑制することにより通電率を制限する。【選択図】図1


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    Title :

    REFRIGERATION DEVICE


    Additional title:

    冷凍装置


    Contributors:

    Publication date :

    2015-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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