PROBLEM TO BE SOLVED: To provide a vehicular air conditioning unit which can suppress further pressure loss of air flow in a hot air passage in comparison with a conventional vehicular air conditioning unit in which a hot air passage, on which a heater core is arranged, is formed with a passage cross section area corresponding to the size of the heater core.SOLUTION: A heater core 15 is arranged on a hot air passage 18 formed in an air conditioning case 11, and the hot air passage 18 includes a heater bypass flow passage 181 that detours the heater core 15 and flows air. This makes a passage cross section of the hot air passage 18 larger, by an area in which the heater bypass flow passage 181 is provided, than a case where the hot air passage 18 is formed with a passage cross section area corresponding to the size of the heater core 15. This allows pressure loss of air flow in the hot air passage 18 to be suppressed.SELECTED DRAWING: Figure 1

    【課題】ヒータコアが設置される温風通路をヒータコアのサイズに合わせた流路断面積で形成する場合と比較して、その温風通路における空気流れの圧損を抑制することが可能な車両用空調ユニットを提供する。【解決手段】ヒータコア15は、空調ケース11に形成された温風通路18に配置され、その温風通路18は、ヒータコア15を迂回させて空気を流す加熱器バイパス流路181を含んでいる。従って、温風通路18をヒータコア15のサイズに合わせた流路断面積で形成する場合と比較して、加熱器バイパス流路181が設けられている分、温風通路18の流路断面積が大きくなる。そのため、その温風通路18における空気流れの圧損を抑制することが可能である。【選択図】図1


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    Title :

    VEHICULAR AIR CONDITIONING UNIT


    Additional title:

    車両用空調ユニット


    Contributors:

    Publication date :

    2016-04-07


    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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