An induction heating type cooktop includes an upper plate coupled to a top side of a case and configured to place an object to be heated on a top of the upper plate, a working coil disposed inside the case to heat the object, a thin film disposed on at least one of a top surface or a bottom surface of the upper plate, an insulator disposed between the bottom surface of the upper plate and the working coil, and a temperature sensor configured to measure a temperature of at least one of the thin film or the upper plate by a plurality of thermocouples.

A cooking system includes a placement plate, and a radiation guiding element which is permeable for infrared radiation and visible light. The radiation guiding element extends in an assembled state at least in part along a normal direction perpendicular to a main extent plane of the placement plate from an upper side to a lower side of the placement plate.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

Operations such as adding food or flipping or otherwise manipulating food in an item of cookware being heated may be detected by comparing with a threshold the time derivative of a sensed temperature and/or of heating power absorbed by an item of cookware, wherein the heating power is provided by an induction cooktop operated in order to keep constant the temperature value sensed by the sensors coupled to the item of cookware.

A method for controlling an induction heating apparatus according to one embodiment includes receiving a heating start command; determining whether or not to perform a temperature correction operation based on a difference between a current driving start time point of a working coil and a previous driving end time point of the working coil; obtaining an equivalent resistance value of the working coil and a container placed on the working coil by driving the working coil at a preset reference frequency, when it is determined to perform the temperature correction operation; obtaining a temperature correction value based on the equivalent resistance value; obtaining a temperature value sensed by a temperature sensor; and correcting the temperature value based on the temperature correction value.

A cooking device according to one example embodiment includes a base having a top surface positioned to contact a cooking vessel configured to hold food during cooking. The base includes a heater having a ceramic substrate and an electrically resistive trace on an exterior surface of the ceramic substrate. The heater is positioned to supply heat generated by applying an electric current to the electrically resistive trace to the top surface of the base for heating the cooking vessel to heat food in the cooking vessel. In some embodiments, the electrically resistive trace includes an electrical resistor material thick film printed on the exterior surface of the ceramic substrate. In some embodiments, the electrically resistive trace is positioned on a top surface of the ceramic substrate that faces upward toward the top surface of the base.

An induction heating cooker for achieving high output of power and small thickness is provided. The induction heating cooker includes a main body provided at an upper side with a top plate, a heating coil to induction-heat a heating object loaded on the top plat, and a blower device configured to draw external air into the main body and blow the air into the heating coil. The heating coil and the blower device are accommodated in the main body. The main body is provided therein with a first flow path allowing air blown by the blowing device to be supplied toward the heating coil from an outer periphery side and a second flow path allowing air blown by the blowing device to be supplied toward the heating coil from a lower side.

A cooking apparatus including a plate including a plurality of lighting lines and a knob area; a plurality of light-emitting elements configured to emit light through the plurality of lighting lines; a knob detachably attached to the knob area of the plate and configured to accept a command input; a display on the knob; a container sensor configured to detect a container positioned on an upper surface of the plate; a communication device configured to communicate with the knob; and a controller configured to set, based on container information obtained by the container sensor or a command input through the knob, a container area on the plate, control the plurality of light-emitting elements to emit light through at least one lighting line, among the plurality of lighting lines, positioned on an outer edge of the container area, and control the knob to display operational information about the container area.

A heating cooking apparatus includes: a plate; a heater configured to heat a cooking container placed in a cooking area of the plate; and a controller configured to create a recipe including a plurality of stages based on operation information of the heater, wherein the controller is configured to, based on a change in operation state of the heater, create a first stage based on first operation information, among the operation information of the heater, which corresponds to the operation state of the heater before the change of the operation state of the heater, and create a second stage based on second operation information, among the operation information of the heater, which corresponds to the operation state of the heater after the change of the operation state of the heater, and the recipe includes the first stage and the second stage.

A radiant burner for a cooking appliance. The radiant heater includes a heating element residing on or in an insulating base, the insulating base having a recess located in a bottom thereof. The insulating base is housed in a casing that has a recess residing in the recess of the insulating base. A part of the casing that forms the recess includes a guide. A temperature sensor configured to measure a temperature inside the radiant burner is supported by an insulating body. A portion of the insulating body is located inside the insulating base and inside the guide formed by the casing with the insulating body extending vertically through the insulating base and the guide.