| 摘要 |
Disclosed are an air conditioning system and a heat exchanger. The air conditioning system comprises a compressor (1), an outdoor heat exchanger (3), a first heat exchanger (101), a second heat exchanger (102) and at least two throttling devices, wherein the outdoor heat exchanger is a micro-passage heat exchanger and comprises a first inlet (31), a second inlet (32), an outlet (33), a distributing pipe (36), a collecting pipe (37), a flat pipe (38), a fin (39) and a distributor (34) which is located in the distributing pipe (36) and used for distributing a working medium, and a distribution small hole (35) is provided in the distributor (34); and the first inlet (31) is in direct communication with a distributing cavity (30) of the distributing pipe (36), while the second inlet (32) is in communication with the distributing cavity (30) through the distributing small hole (35) in the distributor (34). In a cooling mode, a gaseous working medium enters the distributing pipe (36) through the first inlet (31) or through both of the first inlet (31) and the second inlet (32), while in a heating mode, and the working medium enters the distributing pipe (36) through the second inlet (33) so that the pressure loss during the process in which the working medium flows through an outdoor heat exchanger in the cooling mode is significantly reduced, thereby increasing the efficiency of the system. |
