HEAT EXCHANGER

摘要

A first header collecting pipe (60) of an outdoor heat exchanger (23) has three communication chambers (62a-62c) and one mixing chamber (63). One auxiliary horizontal partition plate (85a) is disposed between two main horizontal partition plates (80a, 80b). The mixing chamber (63) is defined between the first main horizontal partition plate (80a) and the auxiliary horizontal partition plate (85a). A gas-liquid two-phase refrigerant supplied to the outdoor heat exchanger (23) functioning as an evaporator flows into the mixing chamber (63), and is then distributed to the three communication chambers (62a-62c). This structure allows the refrigerant that is to be distributed from the mixing chamber (63) to the communication chambers (62a-62c) to have a uniform wetness.