A HEAT EXCHANGER

摘要

The present invention relates to a heat exchanger. The heat exchanger comprises a pair of header-tanks 10 having at least one partition wall 11 and at least one baffle 12; a plurality of tubes 20; and a plurality of fins 30, wherein a communication hole 15 is formed on the partition wall 11 that is positioned at a region disposed between the baffle 12 and one edge of the header- tank 10 adjacent to the baffle 12, and assuming that a distance from the baffle 12 to the one edge of the header- tank 10 is 100%, 1 - 4 communication holes 15 are formed at positions on the partition wall 11 which corresponds to an extent of 0 ~ 50%, 65 ~ 100%, or an extent of 0 ~ 50% and an extent of 65 ~ 100%.