| 摘要 |
A lower space (62) of a first header collecting pipe (60) of a heat exchanger (23) is, by partitions (80, 85, 90), divided into three communication chambers (62a-62c) and a single mixing chamber (63). The mixing chamber (63) communicates with the communication chamber (62a) through a through-hole (86) of a lower horizontal partition (85), communicates with the communication chamber (62b) through a through-hole (95) of a vertical partition (90), and communicates with the communication chamber (62c) through a through-hole (81) of an upper horizontal partition (80). Gas-liquid refrigerant flows into the mixing chamber (63), and is mixed in the mixing chamber (63). Then, the refrigerant is distributed to the communication chambers (62a-62c). Thus, the wetness of refrigerant flowing into a flat tube (32) is uniformized among the flat tubes (32), and performance of the heat exchanger (23) can be fully achieved. |
