| 摘要 |
PROBLEM TO BE SOLVED: To achieve uniform humidity wetness in refrigerants flowing in plurality of flat tubes in a heat exchanger having the plurality of flat tubes and to fully exert the performance of the heat exchanger.SOLUTION: In an outdoor heat exchanger (23), one end of each flat tube (31, 32) is connected with a first header collecting pipe (60). A bottom space (62) of the first header collecting pipe (60) is partitioned into three communication rooms (62a-62c) and a mixing chamber (63) by an upper side horizontal partition plate (80), a lower side horizontal partition plate (85), and a vertical partition plate (90). A plurality of communication rooms (62a-62c) are arranged in line vertically. Each of the communication rooms (62a-62c) is connected with a plurality of flat tubes (32). The mixing chamber (63) is adjacent to a second communication room (62b) at the cental part. The mixing chamber (63) is communicated with the first communication room (62a), second communication room (62b), and third communication room (62c) respectively via a through hole for communication (86) of the lower side horizontal partition plate (85), a through hole for communication (95) of the vertical partition plate (90), and a through hole for communication (81) of the upper side horizontal partition plate (80). |
