A wireless induction heating cooker is configured to operate on an induction heating apparatus. The wireless induction heating cooker includes a main body, an internal pot configured to be disposed in the main body, a plurality of receiving coils disposed at a bottom surface of the main body and arranged along a circumferential direction of the internal pot, and a plurality of lateral surface heating coils spaced apart from the bottom surface of the main body and arranged along a lateral surface of the internal pot. Each of the plurality of lateral surface heating coils is connected to one of the plurality of receiving coils that is disposed at an opposite side with respect to a reference line passing through the bottom surface of the main body.

A wireless power transmission device includes power transmission coils for transmitting power to a wireless power reception device; inverters for applying alternating current power to the coils; a communication module using a frequency different from that of the power transmitted from the coils; and a processor. The processor controls the inverters such that first power is sequentially applied to the coils respectively, receives a communication signal from the reception device through the communication module while the first power is being sequentially applied, identifies a first coil corresponding to a position of the reception device based on of a reception time point of the communication signal and time points at which the first power starts to be applied to the coils, and controls a first inverter corresponding to the first coil such that second power for charging the reception device is applied to the first coil.

A wireless power-driven cooking apparatus including a receiving coil with a stacked structure. More specifically, the wireless power-driven cooking apparatus may include a wireless power transmitting unit including a transmitting coil to wirelessly transmit power and a wireless power receiving unit configured to wirelessly receive power from the wireless power transmitting unit, in which the wireless power receiving unit includes a first receiving coil and a second receiving coil having a shared center with the first receiving coil whereby the second receiving coil at least partially shares a same center with the first receiving coil, and the first receiving coil and the second receiving coil are arranged at different heights along a direction perpendicular to the shared center.

An induction heating cooking device includes a cooking table having an auxiliary slit; an induction coil for generating a magnetic field so as to inductively heat a cooking container placed on the cooking table; multiple light sources disposed at the outside of the induction coil; and a main slit through which light emitted from the light sources passes. The induction heating cooking device forms a virtual flame image on the cooking container, thereby enabling the heating state of the induction heating cooking device to be intuitively checked.

An inductive heating cooker includes a main body and a power-receiver device. The main body includes a top plate on which a heating target is placed, a heating coil provided under the top plate and configured to inductively heat the heating target, a drive circuit configured to supply electric power to the heating coil, a power transmission coil configured to transmit the electric power by magnetic resonance, and a power transmission circuit configured to supply the electric power to the power transmission coil. The power-receiver device includes a power reception coil configured to receive the electric power from the power transmission coil by the magnetic resonance, and a load circuit configured to operate by the electric power received by the power reception coil.

Disclosed herein is a cooking apparatus. The cooking apparatus includes a cooking plate, a plurality of induction heating coils installed under the cooking plate, a plurality of drivers configured to supply driving power to the plurality of induction heating coils, and a controller configured to control the plurality of drivers to drive a plurality of groups to which the plurality of induction heating coils belong, respectively. Power output by a first driver, among the plurality of drivers, which drives a first group among the plurality of groups may be increased and power output by a second driver, among the plurality of drivers, which drives a second group among the plurality of groups may be decreased.

An apparatus, system and method for wirelessly powering a device. The apparatus, system and method may include a primary coil housing that houses a primary coil; a secondary coil housed within the device and suitable for having power induced therein responsive to the primary coil; an isolator that at least partially mechanically and electrically isolates the primary coil from the secondary coil; and a plurality of paired feedback sensors respectively communicatively and physically associated with, and paired as between, the primary coil housing and the device, wherein the plurality of paired feedback sensors exchanges indications regarding performance of the secondary coil, and wherein performance of the primary coil is modified responsively to the indications.

An induction heating cooking device includes a cooking table having an auxiliary slit through which light passes; an induction coil for generating a magnetic field so as to inductively heat a cooking container placed on the cooking table; at least one light source disposed at the outer edge of the induction coil; an optical member for changing the traveling direction of light emitted the light source and concentrating the light, and a main slit through which light emitted from the optical member passes so as to form a flame image on the cooking container. The induction heating cooking device forms a virtual flame image on the lower surface of a cooking container at the time of operation of the induction coil, thereby enabling the heating state of the cooking container to be easily recognized.

A temperature sensing device for a heating surface for food products includes a temperature probe configured to be coupled to the heating surface and to generate an electrical signal indicative of a temperature of the heating surface. The device includes a controller in electrical communication with the temperature probe. The device includes a wireless transmitter in electrical communication with the controller. The controller is configured to read the electrical signal from the temperature probe and to provide an output signal to the wireless transmitter. The wireless transmitter is configured to wirelessly transmit a temperature signal to a transceiver based on the output signal. The wireless transmitter is configured to wirelessly receive energy. The controller is configured to be powered by the received energy from the wireless transmitter.

A cooktop accessory device includes a detection coil configured to detect an inductive signal of an induction heating unit, and a signal analysis unit configured to determine a parameter of the inductive signal.