| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner indoor unit capable of obtaining a heating capability and a cooling capability in balance.SOLUTION: In an indoor heat exchanger (32), a first region (R1) including first refrigerant paths (81, 82, 83) each forming a total opposite flow part (91) in which refrigerant flows from a most downstream pipe array (L3) in an air flow direction to a most upstream pipe array (L1) in order during heating and forming a total parallel flow part (92) in which the refrigerant flows from the most upstream pipe array (L1) to the most downstream pipe array (L3) in the air flow direction during cooling, and a second region (R2) configured so as to be low in air flow velocity than the first region (R1) and including second refrigerant paths (84, 85) each forming a partial parallel flow part (93) in which the refrigerant flows from heat transfer tubes (71) in any one of the plurality of pipe arrays (L1, L2, and L3) to the pipe array downstream of the former pipe array in the air flow direction and a partial opposite flow part (94) in which the refrigerant flows from the heat transfer tubes (71) in any one of the plurality of pipe arrays (L1, L2, and L3) to the pipe array upstream of the former pipe array in the air flow direction during both cooling and during heating are formed. |
