Heat exchanger, method for manufacturing the heat exchanger, and refrigeration cycle device with the heat exchanger

摘要

A heat exchanger (100) is provided with: heat transfer members (1) in which refrigerant conduits (3) serving as the conduits for a first refrigerant are formed; and heat transfer tubes (2) serving as the conduits for a second refrigerant. Each of the heat transfer members (1) has fitting grooves (4a, 4b) which are formed in the upper surface and the lower surface of the heat transfer member (1) and in which heat transfer tubes are fitted. The heat exchanger (100) is formed by stacking the heat transfer members (1), and adjacent heat transfer members (1) are connected while the heat transfer tubes (2) are fitted in the fitting grooves (4a, 4b).