US 12,120,802 B2
Cooking appliance
Wontae Kim, Seoul (KR); Hyunwoo Jun, Seoul (KR); Jaekyung Yang, Seoul (KR); Sunghun Sim, Seoul (KR); and Seongho Son, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Apr. 19, 2023, as Appl. No. 18/136,593.
Application 18/136,593 is a continuation of application No. 16/903,973, filed on Jun. 17, 2020, granted, now 11,665,793.
Claims priority of application No. 10-2020-0022579 (KR), filed on Feb. 24, 2020.
Prior Publication US 2023/0254951 A1, Aug. 10, 2023
Int. Cl. H05B 6/64 (2006.01); H05B 3/00 (2006.01); H05B 6/10 (2006.01); H05B 6/12 (2006.01); H05B 6/70 (2006.01)
CPC H05B 6/647 (2013.01) [H05B 3/0014 (2013.01); H05B 6/105 (2013.01); H05B 6/129 (2013.01); H05B 6/6402 (2013.01); H05B 6/6482 (2013.01); H05B 6/6488 (2013.01); H05B 6/707 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cooking appliance comprising:
a housing that defines a cavity configured to receive an object to be heated;
a door connected to the housing and configured to open and close the cavity;
a working coil that is configured to generate a magnetic field through a first surface of the cavity;
a thin film that is disposed between the cavity and the working coil; and
a plate that defines the first surface of the cavity and is in contact with the thin film, the plate being disposed between the cavity and the working coil,
wherein the working coil is configured to, by the magnetic field, induce an eddy current to selectively one of the thin film or the object in the cavity to thereby heat the object.