PROBLEM TO BE SOLVED: To provide a vehicle air-conditioner including a hot-water heater provided in a hot water cycle separately from a heating section provided in a refrigeration cycle, and capable of performing a heating operation while achieving energy conservation.SOLUTION: A vehicle air-conditioner comprises: a heat pump type refrigeration cycle 1 including a refrigerant/hot-water heat exchanger 3; a hot water cycle 10 including a water pump 11 circulating hot water subjected to heat exchange by the refrigerant/hot-water heat exchanger 3, a heater core 12, and a hot-water heater 13; and route switching means 20 switching over between a refrigerant/hot-water heat exchange route in which the hot water passes through the refrigerant/hot-water heat exchanger 3 and a hot-water heating route in which the hot water passes through the hot-water heater 13. The vehicle air-conditioner is configured such that when a current water temperature in the hot water cycle 10 is lower than a heating source switch water temperature, a route of the hot water cycle 10 is switched to the refrigerant/hot-water heat exchange route and the refrigeration cycle 1 is driven, and when the current water temperature in the hot water cycle 10 is higher than the heating source switch water temperature, the route of the hot water cycle 10 is switched to the hot-water heating route and the hot-water heater 13 is turned on.SELECTED DRAWING: Figure 1

    【課題】温水サイクルに冷凍サイクルでの加熱部と共に別の温水加熱器を備えたものにあって、暖房運転を省エネルギーで行うことができる車両用空気調和装置を提供する。【解決手段】冷媒・温水熱交換器3を有するヒートポンプ式の冷凍サイクル1と、冷媒・温水熱交換器3で熱交換される温水を循環させるウォータポンプ11、ヒータコア12及び温水加熱器13を有する温水サイクル10と、温水が冷媒・温水熱交換器3を通る冷媒・温水熱交換経路と、温水が温水加熱器13を通る温水加熱経路に切換える経路切換手段20と、温水サイクル10内の現在の水温が加熱源切換水温より低い場合には、温水サイクル10の経路を冷媒・温水熱交換経路に切換え、且つ、冷凍サイクル1を駆動し、温水サイクル10内の現在の水温が加熱源切換水温より高い場合には、温水サイクル10の経路を温水加熱経路に切換え、且つ、温水加熱器13をオンする。【選択図】図1


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    Title :

    VEHICLE AIR-CONDITIONER


    Additional title:

    車両用空気調和装置


    Contributors:

    Publication date :

    2017-01-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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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