PROBLEM TO BE SOLVED: To provide an internal heat exchanger which enables an expansion device to be attached/detached from an engine room side via a through-hole provided at a dash panel, and a refrigeration cycle of an air conditioner for vehicle including the same.SOLUTION: An internal heat exchanger 100 is mounted on a refrigeration cycle 1 of an air conditioner for vehicle and it includes: a heat exchange part 110 constituted by laminating plate-like members, and for performing heat exchange of a refrigerant between a first heat exchange passage 111 and a second heat exchange passage 112; a refrigerant entrance part 120 in which a first inflow passage 121 and a first outflow passage 122 pass; and an expansion device connection part 130 in which a second outflow passage 132 and a second inflow passage 131 pass. The expansion device connection part has a first screw insert part 133. The internal heat exchanger is detachably fixed to an expansion device by a fixing member 140 having a screw head part 141 and a screw shaft part 142. The screw shaft part is inserted in the first screw insert part, and inserted in a fourth screw insertion part 41 provided at the expansion device.SELECTED DRAWING: Figure 2

    【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、車両用空調装置の冷凍サイクル1に装備され、板状部材を積層して構成され、第1熱交換路111と第2熱交換路112との間で冷媒の熱交換を行う熱交換部110と、第1流入路121及び第1流出路122が通る冷媒出入口部120と、第2流出路132及び第2流入路131が通る膨張装置接続部130と、を備え、膨張装置接続部が、第1ねじ通し部133を有し、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、第1ねじ通し部に挿通されるとともに、膨張装置に設けられた第4ねじ通し部41に挿し込まれる。【選択図】図2


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    Title :

    INTERNAL HEAT EXCHANGER AND REFRIGERATION CYCLE OF AIR CONDITIONER FOR VEHICLE INCLUDING 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 :

    2017-12-28


    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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