| 摘要 |
PROBLEM TO BE SOLVED: To prevent corrosion of an air conditioner cycle for a vehicle to the utmost to prevent a refrigerant from being leaked. SOLUTION: In this structure, which is used for an on-vehicle air conditioner cycle, the first joint part 22 with a refrigerant flowing hole 22a, and the second joint part 21 integrated with a refrigerant piping 3 and arranged in an upper side or lower side of the first joint part 22 are provided, an end part of the piping 3 is inserted into the refrigerant flowing hole 22a to integrate the both first and second joint parts 22, 21 in a condition where fellow prescribed faces of the both joint parts 22, 21 are opposed each other, and an outer face of the refrigerant piping 3 and an inner face of the refrigerant flowing hole 22a are sealed with a seal member 5. A prescribed face 22b of the joint part 22 located in a lower side out of the first and second joints 22, 21 is constituted to be opposed over the whole face of a prescribed face 21a of the joint 21 positioned on the upper side, in the structure of the present invention.
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