Patent ID: 9568221
Date: 2017-02-14
CPC Classifications: F24F,F25B,F28D,F28F

Claim:
1. An indoor unit, provided for a ceiling, for an air conditioning device which selectively performs a cooling operation and a heating operation, the indoor unit comprising: an indoor fan; and an indoor heat exchanger which is disposed around the indoor fan and through which air carried by the indoor fan passes, wherein the indoor heat exchanger includes a plurality of fins and heat transfer tubes running through the fins, the indoor heat exchanger includes a plurality of tube lines, the number of which is at least three and in which the heat transfer tubes are arranged side by side in a direction that intersects with an airflow direction, and the indoor heat exchanger has a first region and a second region, the second region being configured so that air has a lower flow velocity in the second region than in the first region and including a second refrigerant path which forms, during both the cooling and heating operations, both the second refrigerant path is formed so that a total number of the heat transfer tubes through which the refrigerant flows in the second refrigerant path is larger than that of the heat transfer tubes through which the refrigerant flows in the first refrigerant path, and during the cooling operation, the second refrigerant path forms a flow dividing portion that divides the refrigerant flowed out of the partial parallel flow portion into a plurality of partial counter flow portions including the partial counter flow portion.