US 11,743,977 B2
Induction heating type cooktop
Seongjun Kim, Seoul (KR); Wontae Kim, Seoul (KR); and Seonghoon Hwang, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jun. 17, 2020, as Appl. No. 16/903,985.
Claims priority of application No. 10-2020-0020471 (KR), filed on Feb. 19, 2020.
Prior Publication US 2021/0259068 A1, Aug. 19, 2021
Int. Cl. H05B 6/12 (2006.01); H05B 6/06 (2006.01)
CPC H05B 6/1263 (2013.01) [H05B 6/062 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An induction heating type cooktop comprising:
a case;
a cover plate connected to an upper end of the case, the cover plate having an upper surface configured to support an object to be heated;
a working coil disposed inside the case;
a thin layer disposed at the cover plate and configured to be heated by the working coil through induction;
an inverter configured to supply a resonance current to the working coil, the inverter being disposed at a position that does not overlap with the thin layer in a vertical direction; and
a working coil cooling fan configured to blow air toward the working coil,
wherein the thin layer is configured to have a skin depth that is thicker than a thickness of the thin layer.