CORRUGATED FIN AND HEAT EXCHANGER INCLUDING THE SAME

摘要

A corrugated fin has flat plate sections each having a pair of lateral sides facing each other and a pair of end sides facing each other, and joining sections connecting with lateral sides of the flat plate sections. The flat plate sections and joining sections are alternately formed into a corrugated shape by bending. The joining section has an even surface joined to a tube through which a heat exchange medium flows, while the flat plate section includes a recess or protrusions in arbitrary sections taken along two directions including a direction in which the lateral sides are arranged and a direction in which the end sides are arranged, respectively.

主权项

1. A corrugated fin for a heat exchanger, the corrugated fin comprising:
a flat plate section and a joining section which are alternately formed into a corrugated shape by bending, said flat plate section having a pair of lateral sides facing each other and a pair of end sides facing each other, said joining section connecting with a lateral side of the pair of lateral sides of the flat plate section, wherein said flat plate section has, on a surface thereof, a plurality of groove-shaped recesses that extend in a slant direction with respect to the pair of lateral sides of the flat plate section, wherein each of the groove-shaped recesses comprises a first groove-shaped recess portion and a second groove-shaped recess portion which are separate from each other, and wherein the first groove-shaped recess portion and the second groove-shaped recess portion are arranged alternately in a direction in which the lateral sides are arranged.