A supercooling heat exchanger of an air conditioning apparatus is configured to exchange heat between a high-pressure refrigerant and a low-pressure refrigerant. The supercooling heat exchanger is divided into first and second heat exchangers. One of the first and second heat exchangers is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow countercurrent to each other. The other of the first and second heat exchangers is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow parallel to each other. Preferably, both heat exchangers have a high-pressure liquid refrigerant pipe that is wound around the external periphery of a low-pressure refrigerant suction pipe. The heat exchangers are thereby reduced in size.