| 摘要 |
A heat exchanger for performing heat exchange of a medium by heat conducted to tubes (210) and fins (220), the heat exchanger is configured by assembling the tubes, the fins, tanks (300) and a connector (400) and heating them in a furnace to be brazed into one body, wherein the connector is made of aluminum or its alloy and has a seating face to be brazed to the outer surface of the tank, and when it is determined that the connector has a surface area of X [cm<2>] and a volume of Y [cm<3>], they have a relation of X>=1.5.(36piY<2>)<1/3>, Y<=30.
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