Heat exchanger, refrigeration cycle apparatus, method of manufacturing corrugated fin, and manufacturing apparatus for manufacturing corrugated fin

Abstract

A heat exchanger includes a plurality of flat heat transfer tubes each having a flat cross-sectional shape, a flat outer side surface, and an interior defining a passage through which a fluid flows, the plurality of flat heat transfer tubes being arranged with the flat outer side surfaces facing each other, and a plurality of corrugated fins each having a wavy shape, each of the plurality of corrugated fins being disposed between and joined to flat heat transfer tubes of the plurality of flat heat transfer tubes that are adjacent to each other. Each of the plurality of corrugated fins has portions that correspond to peaks of the wavy shape and have lower flexural rigidity than other portions of the corrugated fin.

Dependencies are inferred from the claim text.