| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger which employs multi-hole tubes manufactured by bending and forming plates, while preventing tube melting in mounting the multi-hole tubes to the header tank.SOLUTION: A heat exchanger is provided with: an inlet header tank having a refrigerant inlet opening; an outlet header tank having a refrigerant outlet opening; and a plurality of tubes 11 for allowing a refrigerant to flow between the inlet header tank and the outlet header tank and provided with refrigerant paths therein. The tubes 11 are multi-hole tubes formed by bending or rolling flat plates. Both ends of each of the tubes are brazed to the inlet header tank and the outlet header tank. A brazing material 8 used to braze the tubes 11 to the inlet header tank 3 and the outlet header tank 4 is disposed on the outer peripheral surfaces of the tubes 11, and a brazing material is not disposed on the inner peripheral surfaces and outer peripheral surfaces of both the inlet header tank and the outlet header tank. |
