| 摘要 |
In this heat exchanger (23), an upwind main heat exchange area (35) is provided with an upwind main row part, a downwind main heat exchange area (65) is provided with a downwind main row part, and an upwind auxiliary heat exchange area (37) is provided with an upwind auxiliary row part, and a downwind auxiliary heat exchange area (67) is provided with a downwind auxiliary row part, respectively. The main row parts and the auxiliary row parts are respectively constituted by a plurality of flat tubes. In the heat exchanger (23) when functioning as an evaporator, the refrigerant flows in order through the upwind auxiliary row part, the downwind auxiliary row part, the downwind main row part, and the upwind main row part. On the other hand, in the heat exchanger (23) when functioning as a condenser, the refrigerant flows in order through the upwind main row part, the downwind main row part, the downwind auxiliary row part, and the upwind auxiliary row part. As a result, the heat exchanger exhibits satisfactory performance both as an evaporator and a condenser. |
