To provide an internal heat exchanger that allows attachment/detachment work of an expanding device to be performed from the side of an engine room via a through hole provided in a dash panel, and a refrigeration cycle of a vehicular air conditioning device comprising the same.SOLUTION: An internal heat exchanger 100 according to the present invention comprises a heat exchange part 410, a refrigerant inlet/outlet part 420, and an expanding device connection part 130. The internal heat exchanger is detachably fixed to an expanding device by a fixing member 140 comprising a screw head part 141 and a screw shaft part 142. The screw shaft part is inserted into a first screw passage part of the expanding device connection part and inserted into a fourth screw passage part 41 of the expanding device. The refrigerant inlet/outlet part is fixed to a plate-like member 101b of the heat exchange part. The expanding device connection part is fixed to a plate-like member 101a of the heat exchange part. The heat exchange part comprises a third screw passage part 413a. The screw shaft part is inserted into the third screw passage part, and the screw head part is locked on an opening edge of the first screw passage part.SELECTED DRAWING: Figure 5

    【課題】本開示は、ダッシュパネルに設けた貫通孔を介してエンジンルーム側から膨張装置の着脱作業を可能とする内部熱交換器及びそれを備える車両用空調装置の冷凍サイクルを提供することを目的とする。【解決手段】本発明に係る内部熱交換器100は、熱交換部410と、冷媒出入口部420と、膨張装置接続部130と、を備え、内部熱交換器は、ねじ頭部141とねじ軸部142とを有する固定部材140によって膨張装置に着脱可能に固定され、ねじ軸部は、膨張装置接続部の第1ねじ通し部に挿通されるとともに、膨張装置の第4ねじ通し部41に挿し込まれ、冷媒出入口部は、熱交換部の板状部材101bに固定され、膨張装置接続部は、熱交換部の板状部材101aに固定され、熱交換部は、第3ねじ通し部413aを有し、ねじ軸部は、第3ねじ通し部に挿通され、かつ、ねじ頭部は、第1ねじ通し部の開口縁に係止される。【選択図】図5


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    Title :

    INTERNAL HEAT EXCHANGER AND REFRIGERATION CYCLE OF VEHICULAR AIR CONDITIONING DEVICE COMPRISING THE SAME


    Additional title:

    内部熱交換器及びそれを備える車両用空調装置の冷凍サイクル


    Contributors:

    Publication date :

    2019-10-10


    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 / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION




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