HEAT EXCHANGER

PROBLEM TO BE SOLVED: To prevent air circulation disturbance and to effectively prevent water from scattering by discharging water droplets (drainage) generated at a windward-side of heat transfer fins early. SOLUTION: In this heat exchanger comprising the plurality of heat transfer tubes 1, 1, ... disposed at prescribed intervals, and the plurality of heat transfer fins 2, 2, ... respectively disposed between the heat transfer tubes 1, 1, ..., and allowing a refrigerant flowing in the heat transfer tubes 1, 1, ... to exchange heat with air A flowing from the direction orthogonal to the arrangement direction of the heat transfer tubes 1, 1, ..., first drainage discharging mechanisms X1for discharging the drainage D generated on the heat transfer fins 2 downward are disposed at the windward side 2c of each of the heat transfer fins 2, and water droplet (drainage) D generated much at the windward side 2c of each heat transfer fin 2 is discharged to a lower part of the heat exchanger through the first drainage discharging mechanisms X1disposed at the windward side 2c of each of the heat transfer fins 2, to improve water drainage. COPYRIGHT: (C)2008,JPO&INPIT