US 12,290,226 B2
Dishwashing appliance having an air-drying dehumidification assembly
Ramasamy Thiyagarajan, Louisville, KY (US)
Assigned to Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed by Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed on Apr. 26, 2022, as Appl. No. 17/729,125.
Prior Publication US 2023/0337892 A1, Oct. 26, 2023
Int. Cl. A47L 15/42 (2006.01); A47L 15/48 (2006.01)
CPC A47L 15/483 (2013.01) [A47L 15/4225 (2013.01); A47L 15/4287 (2013.01); A47L 15/486 (2013.01); A47L 2401/12 (2013.01); A47L 2401/18 (2013.01); A47L 2401/19 (2013.01); A47L 2501/05 (2013.01); A47L 2501/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A dishwashing appliance comprising:
a cabinet;
a tub housed within the cabinet and defining a wash chamber;
a pump configured to deliver a wash fluid to the wash chamber;
a spray assembly housed within the wash chamber of the tub in fluid communication with the pump to receive wash fluid therefrom;
a fluid recirculation duct extending from a path inlet to a path outlet to recirculate air within the wash chamber, the path inlet defined in fluid communication between the wash chamber and the path outlet, and the path outlet defined in fluid communication between the path inlet and the wash chamber downstream from the path inlet;
a cold water loop defining a cold water nozzle disposed within the fluid recirculation duct to provide a condensing, cold-water flow into the fluid recirculation duct between the path inlet and the path outlet;
a loop pump mounted along the cold water loop to motivate the water within the cold water loop;
a heat exchanger mounted to the cold water loop outside of the fluid recirculation duct to cool water within the cold water loop;
a loop fan directed at the heat exchanger outside of the cold water loop to motivate an exchange airflow across the heat exchanger;
a variable-speed tub fan configured to rotate at a plurality of discrete speeds, the variable-speed tub fan being in fluid communication with the fluid recirculation duct to selectively motivate a variable airflow from the path inlet to the path outlet; and
a temperature sensor mounted along the cold water loop to detect a water temperature therein,
wherein the loop pump is a variable-speed loop pump configured to selectively motivate a variable flowrate of the water within the cold water loop based on the detected water temperature.