Heat exchanger and air conditioning device

Abstract

Provided is a heat exchanger that can suppress uneven flow of coolant even when used under conditions wherein circulation volume changes. Also provided is an air conditioning device. A plurality of flat, multi-hole pipes (21b, 121b) are connected at different heights to a first inner space (23a) of a folding-back header collecting pipe (23) of an outdoor heat exchanger (20). The first inner space (23a) has a loop structure that includes: a first partitioning plate (51); a first inflow hole (41x) that is for causing coolant to rise into a first outflow space (51a); a first upper passageway (51x); and a first lower passageway (51y). The first outflow space (51a), a first loop space (51b), a first inflow space (61b), and a first upflow space (61a) are separated by a first rectifying plate (41), the first partitioning plate (51), and a first obstructing plate (61). A coolant path of the flat pipe (121b) that is connected to the first inflow space (61b) is positioned so as not to coincide with a lower connecting hole (61x) that connects the first inflow space (61b) and the first upflow space (61a).

Description

technical field [0001] The invention relates to a heat exchanger and an air conditioner. Background technique [0002] Conventionally, there is known a heat exchanger which has a plurality of flat tubes, fins joined to the plurality of flat tubes, header headers respectively connected to one end side and the other end side of the plurality of flat tubes, And the heat exchanger exchanges heat between the refrigerant flowing inside the flat tubes and the air flowing outside the flat tubes. [0003] For example, in the heat exchanger described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2-219966), the following structure is adopted: both ends of a plurality of outflow pipes extending in the horizontal direction are respectively connected to collectors extending in the vertical direction. Tube manifold. [0004] In the heat exchanger described in this patent document 1, there is the following technical problem: in the inside of the header tubes extending in...

AI Technical Summary

Problems solved by technology

[0004] In the heat exchanger described in this patent document 1, there is the following technical problem: in the inside of the header tubes extending in the vertical direction, since the liquid-phase refrigerant with a large specific gravity gathers below and the gas-phase refrigerant with a small specific gravity gathers above, thus creating a bias current

Images