| 摘要 |
Provided are a heat exchanger and an air conditioning apparatus with which it is possible to suppress eccentric flow of refrigerant, even when employed under conditions in which the circulation rate varies. A plurality of flat multi-perforated tubes (21 b, 121 b) are connected at different heightwise locations in a first internal space (23a) of a doubled-back header collecting tube (23) of an outdoor heat exchanger (20). For the first internal space (23a), a loop structure is adopted including a first partition plate (51), and first inflow port (41x), a first upper communicating passage (51x), and a first lower communicating passage (51y) for allowing the refrigerant to ascend within a first outflow space (51 a). The first internal space is partitioned by a first flow regulation plate (41), the first partition plate (51), and a first blocking plate (61) into the first outflow space (51 a), a first loop space (51b), a first inflow space (61b), and a first ascension space (61a). The refrigerant passage of the flat tube (121b) that is connected to the first inflow space (61b), and a lower communicating port (61x) linking the first inflow space (61b) and the first ascension space (61 a), are arranged so as to not overlap each other. |
