US 12,442,542 B2
Indoor unit of air conditioner, and air conditioner
Baohua Li, Guangdong (CN); and Weidong Zhang, Guangdong (CN)
Assigned to GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., Guangdong (CN); and MIDEA GROUP CO., LTD., Guangdong (CN)
Filed by GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., Guangdong (CN); and MIDEA GROUP CO., LTD., Guangdong (CN)
Filed on Apr. 26, 2023, as Appl. No. 18/139,499.
Application 18/139,499 is a continuation of application No. PCT/CN2021/091744, filed on Apr. 30, 2021.
Claims priority of application No. 202011634413.7 (CN), filed on Dec. 31, 2020; and application No. 202023310652.5 (CN), filed on Dec. 31, 2020.
Prior Publication US 2023/0258341 A1, Aug. 17, 2023
Int. Cl. F24F 1/0007 (2019.01); F24F 1/0035 (2019.01); F24F 1/0071 (2019.01); F24F 13/10 (2006.01)
CPC F24F 1/0007 (2013.01) [F24F 13/10 (2013.01); F24F 1/0035 (2019.02); F24F 1/0071 (2019.02)] 14 Claims
OG exemplary drawing
 
1. An indoor unit of an air conditioner, comprising:
a housing comprising a first air duct, a second air duct, a first air intake port, a first air supply port, a second air intake port and an adapter air duct assembly, the first air duct communicating with the first air intake port and the first air supply port, and the second air duct communicating with the second air intake port and the adapter air duct assembly; and
an evaporator arranged in the first air duct, the adapter air duct assembly being arranged in the first air duct and located at an air inlet side of the evaporator,
wherein:
the adapter air duct assembly has a first state and a second state;
in the first state, the adapter air duct assembly takes in air from the second air duct and guides an airflow of the second air duct to a preset air outlet position;
in the second state, a part of indoor return air from the first air intake port passes through the adapter air duct assembly;
a side, facing the evaporator, of the adapter air duct assembly is provided with a first air outlet, and
an airflow in the adapter air duct assembly is dischargeable from the first air outlet and flows to the evaporator;
the housing is provided with a second air supply port, the adapter air duct assembly is provided with a second air outlet communicating with the second air supply port; and
in the first state, the adapter air duct assembly selectively discharges the airflow from the second air duct through the first air outlet or the second air outlet;
a side, proximate to the first air intake port, of the adapter air duct assembly is provided with a first air inlet, and the first air inlet and the first air outlet are located on a flow path of the indoor return air from the first air intake port;
the indoor unit has a first mode, a second mode and a third mode;
in the first mode, the first air outlet is open, the second air outlet and the first air inlet are both closed, and the airflow from the second air duct flows to the evaporator through the first air outlet and is output through the first air supply port;
in the second mode, the second air outlet is open, the first air outlet and the first air inlet are both closed, and the airflow from the second air duct flows to the second air supply port through the second air outlet and is output through the second air supply port; and
in the third mode, the second air outlet is closed, the first air outlet and the first air inlet are both open, and the indoor return air from the first air intake port enters the adapter air duct assembly through the first air inlet through the first air outlet.