| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger having a plurality of flat pipes, which makes wetness of refrigerant flowing into the respective flat pipes uniform and sufficiently exhibits performance of the heat exchanger.SOLUTION: In an outdoor heat exchanger (23), each one edge of the respective flat pipes (31, 32) is connected to a first header collecting pipe (60). The lower space (62) of the first header collecting pipe (60) is partitioned into three communication chambers (62a to 62c) and one mixing chamber (63) by an upper lateral partition plate (80), a lower lateral partition plate (85) and a vertical partition plate (90). A plurality of communication chambers (62a to 62c) are vertically arranged side by side. A plurality of flat pipes (32) are connected to the respective communication chambers (62a to 62c). The mixing chamber (63) is adjacent to a central communication chamber (62b). The mixing chamber (63) is communicated with the first communication chamber (62a) via the communicating through-hole (86) of the lower lateral partition plate (85), is communicated with the second communication chamber (62b) via the communicating through-hole (95) of the vertical partition plate (90) and is communicated with the third communication chamber (62c) via the communicating through-hole (81) of an upper lateral partition plate (80). |
