| 摘要 |
Provided are a heat exchanger and an air conditioning device, with which it is possible to form an ascending flow of refrigerant even in a structure in which refrigerant is not directly supplied to the part of lower space in a header collecting tube where a refrigerant ascending flow is created. A plurality of flat multi-perforated tubes (21b) are connected at different heightwise locations to 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), first inflow port (41x) for causing refrigerant to ascend within a first outflow space (51a), and a first lower communicating passage (51y) for causing the refrigerant from a first upper communicating passage (51x) to descend in a first loop space (51b) and guiding the refrigerant back to the first outflow space (51 a). The flat multi-perforated tubes (21b) are connected at one end to either the first outflow space (51a) or the first loop space (51b). An interconnecting pipeline (24) is connected to a space that, within a first flow regulation plate (41), is underneath the first loop space (51b). |
