US Patent 11390975 Condensing duct, and washing and drying machine including the same

A washing and drying machine includes a cabinet, a tub disposed inside the cabinet, a condensation duct connected to the tub to condense moisture in air introduced from the inside of the tub, and a drying duct connected to the condensation duct to heat the air introduced into the condensation duct and supply the heated air back into the tub, wherein the condensation duct includes a housing, an inlet disposed at a lower portion of the housing and connected to the tub, an outlet disposed at an upper portion of the housing and connected to the drying duct, a supply nozzle configured to supply condensation water inside the housing, and a rib disposed adjacent to the inlet, wherein the rib includes a gathering portion configured to collect at least a part of the condensation water, and wherein the condensation water collected in the gathering portion falls to the inlet side.