Heat exchanger and air-conditioning apparatus including the same

Abstract

A heat exchanger includes flat tubes arranged in a first direction and extending in a second direction crossing the first direction. The flat tubes each include a tube wall having a heat transfer passage in which a fluid flows in an internal space. The tube wall includes tube-side wall portions facing each other in the first direction, formed in the shape of a flat plate, and having through holes. Any adjacent ones of the flat tubes include a connection portion that connects the tube walls of the adjacent flat tubes and causes the heat transfer passages in the tube walls to communicate with each other. The connection portion includes one or more connecting projections formed at an associated one or ones of the tube-side wall portions of the adjacent flat tubes and projecting in the first direction from an associated one or ones of peripheral portions of the through holes.

Dependencies are inferred from the claim text.