| 摘要 |
PROBLEM TO BE SOLVED: To easily carry out brazing work of a header diversion pipe and an expanding part of a heat transfer tube, in a refrigerant heat exchanger composed by connecting a plurality of header diversion pipes extending from a header pipe to one ends of a plurality of heat transfer tubes passing a refrigerant in parallel with each other. SOLUTION: In an indoor heat exchanger 4, the plurality of header diversion pipes 51-54 extending from the header pipe 55 is inserted into the expanding part 42a formed by expanding the one ends of the plurality of heat transfer tubes 42 passing the refrigerant in parallel with each other, and the refrigerant heat exchanger is composed by brazing the header diversion pipes 51-54 and the expanding part 42a, and connecting the header pipe 55 to the heat transfer tube 42 via the header diversion pipes 51-54. At least one of the plurality of header diversion pipes 51-54 can be inserted deeper than the expanding part 42a. COPYRIGHT: (C)2011,JPO&INPIT |
