An induction heating cooker according to the present invention has a top plate on which a heater area indication indicating a mount position of to-be-heated object is formed, and a first coil and a second coil that are formed of an annular coil arranged below the heater area indication of the top plate, the second coil includes a first winding portion extending in a circumferential direction of the first coil, and a second winding portion spaced apart from the first winding portion and extending in the circumferential direction of the first coil, and the distance between the first winding portion and the top plate is different from the distance between the second winding portion and the top plate.

Disclosed herein is an induction heating device that provides improved user experience and user interface, the induction heating device including a case, a plurality of working coils provided in the case, a cover plate which is coupled to an upper end of the case and where an object subject to heating heated by at least one of the plurality of working coils is placed on an upper surface thereof, an input interface flatly buried into the upper surface of the cover plate, configured to receive a touch input from a user, and configured to display a specific image, a first control module configured to sense which one of the plurality of working coils has the object subject to heating at an upper side thereof, and a second control module configured to control the input interface such that a coil image of each of the plurality of working coils is displayed on the input interface, wherein the second control module receives information on a position of the sensed object subject to heating from the first control module, determines whether the sensed object subject to heating is concentrically placed on the basis of the information on the position of the sensed object subject to heating, and controls the input interface on the basis of results of the determination and on the basis of the information on the position of the sensed object subject to heating such that a burner image for the object subject to heating is displayed on the input interface.

An induction range apparatus includes a controller determine whether the container is disposed on the working coil, and the container disposed on the working coil is heated through induction heating, in a container sensing mode, and configured to output a block signal so that induction power outputted from an inverter driver is prevented from being input into a first detector, in an induction heating mode; and a blocking part outputting the induction power input from the inverter driver to the working coil or preventing the induction power input from the inverter driver from being input into the first detector or outputting the sensing signal to the working coil, on the basis of any two or less of the input of the induction power from the inverter driver, the input of the unblock signal from the controller, and the input of the block signal from the controller.

The present disclosure provides a method for controlling a power of an electromagnetic cooking appliance and an electromagnetic cooking appliance. The electromagnetic cooking appliance includes a first coil disk and a second coil disk. Each of the first coil disk and the second coil disk corresponds to an independent resonance circuit. After obtaining a target power of the electromagnetic cooking appliance, a heating period of the electromagnetic cooking appliance is determined based on the target power, each heating period including at least one first heating time period and at least one second heating time period. The first coil disk is controlled to heat in the first heating time period, and the second coil disk to heat in the second heating time period, such that the first coil disk and the second coil disk are heated alternately to reduce an interference of harmonic current and voltage flicker.

An induction heater for a cook top comprising: —a first electrically insulating sheet (1); —a second electrically insulating sheet (2); —one or more inductors (5) arranged on a same plane between the first sheet (1) and the second sheet (2), each inductor (5) comprising a single electrically conductive track defining a flat spiral coil provided with a plurality of turns (15); wherein the thickness (t) of each inductor (5) is comprised between 100 and 500 μm; and wherein the ratio between the distance (g) between the consecutive turns (15) of each inductor (5) and the thickness (t) of each inductor (5) is lower than or equal to 1.5.

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.

A sensor for measurements of thermophysical properties having an electrically conductive heating element provided in a circular shape on a base. The electrically conductive heating element is provided on the base in a pattern that is designed to better approximate a perfect circle so that the sensor better represents a circular solid disk source as described in the thermal equations used for measuring thermophysical properties, and thus requires a smaller empirical correction, improving the accuracy and certainty of measurements. The pattern of the electrically conductive heating element on the base is designed to optimize uniformity of heat distribution, thereby avoiding hot spots and, where hot spots are unable to be avoided, evenly distributes such hot spots.

An induction cooking apparatus includes a plurality of induction coils arranged in an array. The induction coils include conductive windings and at least one foil. The at least one foil includes magnetically permeable material extending beneath the plurality of induction coils.

A cooking apparatus includes: a receiving coil configured to receive power wirelessly, a first rectifier configured to rectify power transmitted from the receiving coil, a first DC capacitor connected to an output terminal of the first rectifier, a working coil, an inverter, a second DC capacitor connected to an input terminal of the inverter, and a filter circuit connected between the first DC capacitor and the second DC capacitor and configured to block a noise current that flows between the first DC capacitor and the second DC capacitor and that is associated with a predetermined frequency or a frequency higher than the predetermined frequency. The inverter is configured to convert power from the second DC capacitor into an alternating current and transmit the converted alternating current to the working coil.

An induction hob includes a main body with an upper main surface on which in use at least one pan to be heated can be placed, and a lower main surface. The induction hob also includes at least one inductor coupled to the main body at the lower main surface, and a flexible body, fixed to the lower main surface. The flexible body has alternating first, electrically insulating layers and second layers each including at least one electrically conductive track. The inductor has a plurality of such electrically conductive tracks, which are positioned at different second layers and are electrically connected to each other in series and/or parallel to form a plurality of loops.