US 11,698,195 B2
Electrical cooking appliance with automatic cleaning of cooking chamber
Jeongryul Song, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Dec. 16, 2019, as Appl. No. 16/715,122.
Claims priority of application No. 10-2018-0162480 (KR), filed on Dec. 14, 2018.
Prior Publication US 2020/0191404 A1, Jun. 18, 2020
Int. Cl. F24C 15/00 (2006.01); F24C 7/08 (2006.01); F24C 14/00 (2006.01); F24C 15/32 (2006.01); B08B 3/00 (2006.01)
CPC F24C 15/003 (2013.01) [F24C 7/088 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrical cooking appliance with automatic cleaning of a cooking chamber, the appliance comprising:
a steam supply device configured to generate steam and supply the steam to the cooking chamber;
a water supply pump that supplies water from a water tank to the steam supply device;
a water discharge pump that collects condensed water from the steam supply device into the water tank; and
a controller configured to:
activate the water supply pump to supply water to the cooking chamber to clean the cooking chamber; and
activate the steam supply device to supply steam to the cooking chamber to clean the cooking chamber, wherein the steam supply device includes:
a steam supply configured to generate steam and supply the steam to the cooking chamber through a steam supply channel; and
a water-level sensor configured to detect a water-level of the steam supply based on a water-level using a low water-level sensor and a high water-level sensor, wherein the controller is further configured to:
when the high water-level is detected by the high water-level sensor of the water-level sensor, continue to activate the steam supply and the water supply pump for a first predefined duration from a time when the water-level is detected by the high water-level sensor, such that water is supplied and filled onto an inner bottom face of the cooking chamber.