HEAT EXCHANGER, HEAT EXCHANGER STRUCTURE, AND FIN FOR HEAT EXCHANGER

摘要

Provided is a heat exchanger capable of sustaining heat exchange in fins on the downwind side of the heat exchanger and improving discharge of melted water by ensuring ventilation passage even when frost forms on the upwind side of the heat exchanger. This heat exchanger (10) comprises a plurality of tubes (21) in which a refrigerant channel (21a) through which refrigerant flows is formed, and corrugated fins (22) that can exchange heat with the tubes (21) and in which a plurality of heat transfer walls (23) that span from one side of adjacent tubes (21) to the other side are disposed in a direction extending from the tubes (21). In addition, each heat transfer wall (23) has a heat transfer part (23R (L)) that is continuous with a front edge section (23a) positioned on the upwind side of the air flow (A) that passes through, and a front edge section (23b) that recedes further on the downwind side than the front edge section (23a) in the direction of the air flow (A). A first heat transfer part is disposed alternately on every other layer on one tube (21) and another adjacent tube (21).