Patent ID: 11937359
Assignee: LG ELECTRONICS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC A  H | IPC A  H

Claim 13:
14. A wireless induction heating system, comprising:
an induction heating apparatus including a heating coil defining a heating area, and configured to generate a magnetic field through the heating coil; and
a wireless induction heating cooker configured to operate on the heating area of the induction heating apparatus, the wireless induction heating cooker comprising:
a main body,
an internal pot received in the main body,
a lid configured to cover the main body,
a first power receiving coil placed on an inner bottom surface of the main body, wherein electric currents are induced by a first magnetic field generated in the heating coil,
a lateral surface heating coil placed on an outer circumferential surface of the internal pot, the lateral surface heating coil being connected with the first power receiving coil and configured to heat the internal pot using the electric currents provided by the first power receiving coil,
a power transmitting coil disposed on a lateral surface of the main body and configured to receive electric currents induced to the first power receiving coil and generate a second magnetic field, and
a second power receiving coil disposed on a lateral surface of the lid and configured to supply electric currents to an electronic device, the electric currents being induced by the second magnetic field generated in the power transmitting coil,
wherein a first end of the first power receiving coil and a first end of the lateral surface heating coil are directly connected to each other, and a second end of the first power receiving coil and a second end of the lateral surface heating coil are connected to a resonance capacitor,

wherein the first power receiving coil is horizontally placed below an edge area of the internal pot, and
wherein the edge area is defined between an outer diameter of the internal pot and a second reference radius that is larger than the outer diameter of the internal pot.