Patent ID: 7849709

Claim:
An indoor unit of an air conditioner comprising: a ventilation fan that generates a flow of air; and a heat exchanger including a first heat exchanger layer having a first side facing the ventilation fan, a second side opposite the first side, and top, bottom, and lateral sides connecting the first side to the second side, and a second heat exchanger layer layering on the first heat exchanger layer, and having a first side facing the ventilation fan, a second side opposite the first side, and top, bottom, and lateral sides connecting the first side to the second side, and having a smaller area than that of the first heat exchanger layer, the first side of the second heat exchanger layer being disposed to overlap and to face the second side of the first heat exchanger layer, and during a cooling operation, a refrigerant flows to the first heat exchanger layer before flowing to the second heat exchanger layer, and the first heat exchanger layer and the second heat exchanger layer functioning as an evaporator.