AIR CONDITIONER

摘要

In the supercooling heat exchanger of an air conditioner for exchanging heat between high pressure refrigerant and low pressure refrigerant, a flow direction of refrigerant during a cooling operation is reversed during a heating operation to cause the high pressure refrigerant and the low pressure refrigerant to flow in parallel in either one operation mode, whereby a heat exchange efficiency deteriorates. In an air conditioner comprising a supercooling heat exchanger (13) for exchanging heat between low pressure refrigerant and high pressure refrigerant, the supercooling heat exchanger (13) is divided into first and second heat exchangers (13A, 13B), any one of the first heat exchanger (13A) and the second heat exchanger (13B) is arranged such that the high pressure refrigerant and the low pressure refrigerant produce counter flows, and the second heat exchanger (13B) or the first heat exchanger (13A) on the other side is arranged such that the high pressure refrigerant and the low pressure refrigerant produce parallel flows. Each heat exchanger (13A, 13B) is arranged such that a high pressure liquid refrigerant tube (15) is wound around the outer periphery of a suction tube (14) for sucking low pressure refrigerant thus reducing each size.