HEAT EXCHANGER AND AIR-CONDITIONING SYSTEM EMPLOYING SAME

摘要

Disclosed is a heat exchanger comprising first and second tubes (2) respectively having a refrigerant channel for flowing a refrigerant. The heat exchanger further comprises tanks (3, 4) respectively attached to either ends of the first and second tubes (2) for distributing the refrigerant to the first and second tubes (2). The first and second tubes (2) respectively have an outer surface which serves as a heat transfer surface and exchanges heat with the refrigerant. The pitch (P) between the first and second tubes (2) is two to four times as wide as the thickness of the first and second tubes (2).