| 摘要 |
In a heat exchanger having a plurality of tubes 2 alternately laminated with fins 3, header pipes 4 connected to and in communication with both ends of the laminated tubes, inlet and outlet connectors 8 connected to the header pipes to supply and receive a heat exchanging medium to and from an external equipment, and the heat exchanging medium meanders a plurality of times between the inlet and outlet connectors; a groove 15 is formed in one of the inlet and outlet connectors 8, on the rim of the piping connecting face of the connector having its piping connecting face 11 facing downward with respect to the vertical line during brazing, so as to prevent the flux from entering into the inside of the piping connecting face from the outside of the piping connecting face.
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