| 摘要 |
In two heat exchange regions (35, 37) connected together in series when an outdoor heat exchanger (23) functions as an evaporator, a downstream one (35) of the heat exchange regions has heat exchange sections not less than heat exchange sections of an upstream one (37) of the heat exchange regions, and a most downstream one (35) of the heat exchange regions has more heat exchange sections than a most upstream one (37) of the heat exchange regions. |
