PROBLEM TO BE SOLVED: To provide a vehicular air conditioning unit that can securely guide part of hot air to an upper side of an air mixing chamber by extending a hot air guide passage in an air mixing mode and can securely suppress an increase in ventilation resistance by releasing the extended state of the hot air guide passage in a full cool mode.SOLUTION: A vehicular air conditioning unit 1 includes: an air mixing chamber 11 that is provided in a case 4 and in which air passing through a heating heat exchanger 7 and air bypassing the heating heat exchanger 7 are mixed; a hot air guide passage 20 disposed in an air flow passage 5 for guiding part of hot air from the lower side of the air mixing chamber 11 to the inner side; and a movable guide 25 disposed in the air flow passage 5, having a rotating shaft 26 and a door body 27, and causing an extension portion of the door body 27 to extend the hot air guide passage 27 toward the upper side of the air mixing chamber 11 at a rotation lower limit position of the door body 27. In an air mixing mode, the hot air guide passage 20 is extended by the movable guide 25.SELECTED DRAWING: Figure 4

    【課題】エアミックスモード時には温風案内通路を延長して温風の一部を確実にエアミックスチャンバの上方へ導き、フルクールモード時には温風案内通路の延長を解消して通気抵抗の上昇を確実に抑制することができる車両用空調ユニットを提供する。【解決手段】車両用空調ユニット1は、ケース4内に設けられ、加熱用熱交換器7を通過した空気と加熱用熱交換器7を迂回した空気とが混合するエアミックスチャンバ11と、空気流路5に配置され、温風の一部をエアミックスチャンバ11の下方から内部にまで導く温風案内通路20と、空気流路5に配置され、回転軸26とドア本体27とを有し、ドア本体27の回転の下限位置では、温風案内通路27をドア本体27の延長部によりエアミックスチャンバ11の上方に向けて延長する可動ガイド25と、で構成し、エアミックスモードのときに、可動ガイド25で温風案内通路20を延長する。【選択図】図4


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    Title :

    VEHICULAR AIR CONDITIONING UNIT


    Additional title:

    車両用空調ユニット


    Contributors:

    Publication date :

    2017-06-01


    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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