Abstract: An induction heating cooker and a control method thereof that prevents the occurrence of an error caused during recognition of a container in the induction heating cooker that performs cooking regardless of where the container is placed on a cooking plate includes a plurality of heating coils disposed below a cooking plate, current detectors to detect values of current flowing in the respective heating coils, and a controller to determine whether a container is placed on the respective heating coils based on the detected current values of the heating coils and change amounts of the current values.

Abstract: A cooktop includes a plurality of heaters that form a contiguous cooking zone, a power supply for the plurality of heaters with a differentiator that differentiates between a first positive heating power for a first of the plurality of heaters and a second positive heating power for a second of the plurality of heaters in a differentiated heating mode.

Abstract: An induction heating cooker includes a cooking container heating coil, an inverter circuit to supply high-frequency current to the heating coil, an infrared ray sensor to detect radiation from the container, an electric power integrating section to integrate heating electric power from the inverter circuit, and a heating control section to control an inverter circuit output. If the power integrating section has less than a predetermined value when an increase in the output of the infrared ray sensor has a first value after start of heating, the cooker shifts to a first heating control mode and, if equal to or more than the predetermined value, shifts to a second heating control mode. The power, in the first heating control mode, is reduced to a second amount of power lower than the first amount and, in the second heating control mode, is a third amount larger than the second amount.

Abstract: The induction cooking device includes a light-pervious top plate 2 on which a container with liquid 5 contained therein is to be placed, a heating coil 3 provided below the top plate 2 to heat the container 1, an electrode 4 provided at a portion of a lower surface of the top plate 2 positioned outer than a periphery of the heating coil 3; and a capacitance detection device 6 for detecting changes in capacitance of the electrode caused by liquid boiled over from the container 1. The top plate 2 includes a light emitting part 7 by which visible light applied from a light source 12 placed below the top plate 2 is transmitted to fulfill light emission, the light emitting part 7 being positioned at a portion of the top plate 2 positioned between the periphery of the heating coil 3 and the electrode 4 as viewed from above the top plate 2.

Abstract: Embodiments of an exemplary induction cooktop apparatus or system, may include an induction cooking unit; an interface adapted to receive, store, and execute a plurality of instructions of a multistage programmable recipe using said induction cooking unit; a power supply adapted to be coupled to a power source; a controller coupled to said power supply, said interface, and said induction cooking unit adapted to control said induction cooking unit according to said plurality of instructions of said multistage programmable recipe. An embodiment may include a system, method, and computer program product comprising: an induction cooking unit; receiving at an interface a plurality of instructions of a multistage programmable recipe; storing instructions in a memory; executing instructions in a controller coupled to the memory and induction cooking unit, so as to control the induction cooking unit in accordance with instructions of the multistage programmable recipe.

Abstract: An infrared permeable window 4a, which is surrounded by a light shielding layer 7b and is narrower than an infrared sensor display window 4g, is formed inwardly of the infrared sensor display window 4g, and an infrared incident area 43a for detecting infrared rays of light and a light emitting unit 56a are provided below the infrared permeable window 4a. Also, a light emitting surface 4b is provided inwardly of the infrared permeable window 4a, so that the user can assuredly place a cooking container P on the infrared permeable window 4a.

Abstract: An induction cooking system with an induction heating system, a cooktop, and cool touch cookware that has a target layer that is heated by induction. An absolute cookware temperature is directly sensed at one or more locations of the cookware. A relative cookware temperature can be determined based on the value of an electrical variable of a circuit that includes the target layer. The cookware can include a layer of thermal insulation directly below and spaced from the target layer by a gap. The insulation and gap act as the major heat insulating elements to keep the outer surface of the cookware cool. The cooktop can be cooled by placing a cooling chamber just below the cooktop and drawing air through the cooling chamber. The induction coil can be located in the cooling chamber.

Abstract: A hotplate apparatus, in particular for a hotplate having a cover plate having at least two heating zones, includes a cooking utensil sensor unit. The cooking utensil sensor unit has at least one bridging detection unit, which is intended to detect at least bridging of the at least two heating zones by at least one cooking utensil element.

Abstract: Methods and devices for securing the bottom of an item of cookware to the burner of a stove top by use of magnetism. The magnet(s) may be permanent magnets or electromagnets. The cookware may comprise a permanent magnet disposed on or in the base of the cookware. The burner comprises a magnetic material such as steel or iron. The magnetic material may be in the grate of the cook top, in the electric coil of an electric burner, in the surface of a vitroceramic or smooth-top stove top, or other component of the cook top in close proximity to the bottom of the cookware when it is on the cooking surface. The magnetic source prevents the cookware from being accidentally knocked off the cook top.

Abstract: An induction heater which has an electrical conductor between a heating coil and a top plate. The electrical conductor has an extended portion formed downward from its outer periphery. The extended portion has a connector at its tip for coupling to a low-potential part. A thermal-connection reducing means is provided on the extended portion. A cross-sectional shape near a bent portion of the extended portion is made uniform. With the above structure, the electrical conductor has both the functions of decreasing the buoyancy and electrostatic shielding. This structure uses a smaller number of components, eliminates the risk of electric shock to the human body, and prevents uplift of an object to be heated. The thermal-connection reducing means reduces heat conduction to a connected part. Accordingly, a highly reliable and compact apparatus becomes available.

Abstract: An induction heating cooker includes a plurality of heating coil blocks including one or more heating coils, a plurality of inverters to supply a high-frequency voltage to each of the heating coils, and a controller to control operations of the plurality of inverters to alternately supply the high-frequency voltage to each heating coil block and detect a heating coil, on which a container is placed, from among the heating coils belonging to each of the plurality of heating coil blocks. Using this configuration, it is possible to reduce the influence of magnetic field interference between adjacent heating coils when detecting the position of the container and to increase container position detection accuracy.

Abstract: An induction heating cooker including a heating coil, a top plate, an inverter circuit, a temperature sensor provided under the top plate and detecting a bottom temperature of the pot load, an inverter circuit for supplying a high frequency current to the heating coil, a temperature calculating part for calculating the bottom temperature of the pot load based on an output of the temperature sensor, a setting part for a user to set a cooking temperature freely therewith, a controller for controlling an output of the inverter circuit make the bottom temperature of the pot load calculated by the temperature calculating part match the cooking temperature, a cumulative electric power measuring part for measuring a cumulative electric power value of an electric power supplied to the pot load during a second predetermined time period at intervals of a first predetermined time period, and a adjusting part adjusting the cooking temperature to a higher temperature by a second predetermined value when an increased amoun

Abstract: An induction heating cooker including a temperature sensor disposed between a plurality of working coils which are uniformly disposed below a cooking table and a heat transfer member to transfer heat from the working coils adjacent to the temperature sensor to the temperature sensor, thereby improving productivity and space utilization.

Abstract: There is provided a placement position determining part that calculates a rising gradient of an output value of the infrared sensor every after passage of a first predetermined time and performs a placement position determining operation of determining that a placement position of a cooking vessel is improper when the rising gradient is smaller than a first threshold value, and the placement position determining part performs the placement position determining operation after a lapse of a second predetermined time from the start of heating, thereby accurately determining that the cooking vessel is improperly placed on a top plate and preventing overheating of the cooking vessel.

Abstract: There are provided amplifying part (5) for amplifying an output signal of infrared detecting part (4), gain switching part (6) for switching a gain of amplifying part (5) to one of a plurality of gains according to magnitude of the output signal of amplifying part (5), and measuring part (12) for calculating a temperature based on an increase in the output signal of amplifying part (5) relative to an initial reference value, and after writing command input part (11) input a writing command, the output signal of amplifying part (5) is written as the initial reference value for each of the plurality of gains in storage medium (13). Since measuring part (12) uses the initial reference value corresponding to the gain as the initial reference value, temperature of object to be heated (1) can be accurately measured over a wide range.

Abstract: Disclosed is an induction cooking device that is not likely to be affected by induction heating and wherein boiling-over can be detected. An induction cooking device has: a top plate on which a cooking container is placed; a heating coil that generates an induction magnetic field for heating the cooking container; a heating control unit that controls the heating power of the cooking container by controlling the high-frequency current supplied to the heating coil; electrodes disposed in a lower surface of the top plate; and an electrostatic capacity detector that detects changes in electrostatic capacity occurring in the electrodes when articles to be cooked contact with the top plate. When the electrostatic capacity detector senses changes in the electrostatic capacity of the electrodes, the heating control unit decreases or stops the heating power of the cooking container, and the electrodes are disposed outside of the outer circumference the heating coil.

Abstract: Device body (2) with heating chamber (4), and door (3) that opens and closes opening (5) of heating chamber (4). A door wireless communication unit (17) transmits a control signal from an operation unit provided on door 3 in the form of a wireless signal to main wireless communication unit (19). This configuration eliminates the need of wiring between the operation unit and device body (2). No wiring improves noise resistance and productivity.

Abstract: The present invention provides an inductive heating cooking device capable of detecting a temperature of a bottom of a pan instantly without delay in detection of temperature, and precisely keeping a temperature of a cooking container constant, and control method thereof, and control program thereof. The inductive heating cooking device includes a top plate (103) on which a cooking container is placed, a heating coil (104) to which a high-frequency current is applied to generate an induction magnetic field for heating the cooking container, an input unit (114) configured to receive a command for keeping a temperature of the cooking container at a constant temperature, a control unit (105) configured to control a heating of the cooking container by controlling the high-frequency current to be applied to the heating coil, and an infrared ray sensor (106) configured to detect an infrared ray energy radiated from the cooking container through the top plate.

Abstract: A plate material is provided that has a base material and a coating. The base material is a pressed material made from a ceramic matrix and stiffening fibers.

Abstract: A hob includes at least one heating zone having several heating elements, a user interface for setting a heating capacity of the heating zone, and a control unit for operating the heating elements and for distributing the heating capacity among the heating elements according to a heating capacity distribution. In order to improve the efficiency of the hob, the control unit is configured to distribute the heating capacity among a larger number of heating elements when the heating capacity is below a threshold value than in the case, when the heating capacity is above the threshold value.

Abstract: A light-permeable hot plate includes at least one cavity filled with illuminant. The illuminant in the cavity can be excited to illuminate by an electromagnetic excitation field. The hot plate can be part of an induction hob, with the at least one cavity being arranged in a region of a cooking zone. The electromagnetic excitation field is provided to transfer energy into a household appliance which is arranged on the cooking zone.

Abstract: A cooking hob, in particular an induction hob, includes several heating elements, at least one power electronics subassembly for generating a heating current for operating the heating elements, and a switching arrangement for making and breaking a connection between the power electronics assembly and the heating elements. The switching arrangement is constructed as an assembly that is separate from the power electronics assembly.

Abstract: A cooktop is provided that includes heating elements which are combined to a heating zone; a power supply to generate a heating current that operates the heating elements; a switch to open and close a power circuit that includes the power supply and one of the heating elements; and a controller that determines a characteristic variable of the heating current, actuates the switch as a function of a selected power level to operate the heating zone, and activates, in a first operating state, two of the heating elements, which are combined to form the heating zone, in different phases of a heating period.

Abstract: A mobile cooking table. The mobile cooking table has a table top including an induction hob and a cutting board. In addition to cooking elements, the table top has a warming area for keeping food at the correct temperature after cooking. The cooking table has legs with wheels providing the cooking table with mobility. The legs are power extendible enabling the height of the table top to be vertically adjusted. The mobile cooking table also includes a power connection which is preferably coupled to a wheel. The power connection can include a magnetic coupling. The mobile cooking table also includes a removable cutting board or tray forming a part of the table top. The adaptability and features of the mobile cooking table makes it a beneficial appliance for the interior environment.

Abstract: An electromagnetic induction heating grill toaster that includes a first casing body, a first baking tray, a second casing body, and a second baking tray. The first casing body has a first electromagnetic induction element, a first micro-crystal plate, and a control element. The first baking tray is detachably disposed on the first casing body. The second casing body has one side pivoted on one side of the first casing body and has a second electromagnetic induction element and a second micro-crystal plate. The second baking tray is detachably disposed on the second casing body. The present invention utilizes the advantage of quick heating of electromagnetic induction, in order to reduce the amount of time users need to wait for the grill toast to preheat. Hence, the present invention not only reduces power use, but also saves time for the user.

Abstract: A heating cooking device includes a top plate, a heating unit, a touch key including a first electrode and a second electrode, an input unit for applying an alternating current (AC) voltage to the second electrode and for outputting a voltage changing according to a change of the AC voltage when the first electrode is pushed, a detector for outputting a first signal if the voltage output from the input unit changes from the reference value to the first value, an operation judging unit for outputting a second signal according to a rate of change of the voltage output from the input unit, and a controller operable to perform control of the heating unit based on the first and second signals. The controller is operable to perform control of energization of the heating unit if the controller does not receive the second signal after receiving the first signal, and not to perform the control of the energization of the heating unit if the controller receives the second signal after receiving the first signal.

Abstract: Induction heatable cookware and servingware items, and methods and coatings for making induction heatable items are provided. The items of the instant invention are made by applying a ferromagnetic coating to a nonmagnetic item. The ferromagnetic coating is made by grinding or pulverizing a ferromagnetic material, such as steel or iron, into a powder and mixing it with a suitable coating material for the item.

Abstract: An induction cooking device being capable of heating one target heating object by two or more heating coils and also being capable of displaying the positions of the heating units clearly. The induction cooking device includes a control unit (11) and a plurality of light-emitting parts (21 to 24, etc.). The control unit includes a heating control unit (11 a) that controls the output of an inverter circuit and a light-emission control unit (11b) that controls the light emission.

Abstract: In one aspect, the present invention provides a consumer appliance that uses RF energy to heat foods stored in a container that is suitable for RF heating.

Abstract: In one aspect, the present invention provides a consumer appliance that uses RF energy to heat foods stored in a container that is suitable for RF heating.

Abstract: A method for heating a container (Ri) placed on a cooktop including heating elements which are associated respectively with inductors which form elements for detecting the presence of the container and are distributed along a frame which is embodied such that it is two-dimensional in a cooking area. The method includes searching (E20) a heating area (Zi) having the heating elements arrangement which are at least partially covered by the container and computing (E60) a power supplied by each heating element of the heating area (Zi) according to a total specified power (Pi) associated thereto and the degree of coverage of each detection element associated to heating element by the container (Ri). Utilization, in particular, is for an inductive cooktop.

Abstract: An induction heating device according to the present invention includes an infrared ray sensor for detecting infrared rays radiated from a cooking container through a top plate, a light emitting device which is placed near the infrared ray sensor and emits light to the back surface of the top plate, and a heating control unit which controls a high-frequency current through a heating coil for controlling the heating of the cooking container. When the heating control unit has stopped the heating of the cooking container, and a predetermined time elapses at the heating-stopped state, the light emitting device is controlled to stop the light emission therefrom. This can improve durability of the light emitting device, which enables maintaining a function of clearly indicating a position at which the cooking container should be placed and a function of detecting failures in the infrared ray sensor, which are roles of the light emitting device.

Abstract: The invention relates to a cooking device, having an electrical heating element (1) arranged on a carrier element (2), wherein at least on electrical wire (3) is connected with the carrier element (2) by connection means (4, 5). To facilitate the assembly of the cooking device, the invention is characterized in that the connection means (4, 5) comprise a reception element (4) having two recesses (6, 7) forming undercuts and that the connection means (4, 5) comprise a connection member (5) with a basis structure (8) and an electrical contact (9) for engagement with the wire (3), wherein the connection member (5) has two protrusions as (10, 11) extending from the basis structure (8) of the connection member (5) and being arranged to be inserted into the recesses (6, 7).

Abstract: An electromagnetic module applied in an electronic apparatus having a circuit board is disclosed. The electromagnetic module includes a plate disposed on the circuit board, and an inductor coil assembly. The inductor coil assembly includes a magnetic core assembly, a first insulation layer and a coil, which are stacked on the plate in order. The inductor coil assembly is electrically connected to the circuit board for generating the electromagnetic induction, thereby the eddy current is generated to produce heat when a pot disposed on the electronic apparatus. In addition, a process for manufacturing an electromagnetic module, applied in an electronic apparatus is disclosed. The process includes the following steps: (a) providing a plate, (b) attaching a magnetic core assembly to the plate, (c) correspondingly disposing a first insulation layer on the magnetic core assembly, and (d) correspondingly disposing a coil on the first insulation layer.

Abstract: An induction heating device for a glass ceramic hob or cooktop is embodied as an autonomous component. Said induction heating device comprises a bearing device which, in addition to the induction coil, supports a component support comprising power electronics and control electronics. Only the control connections for the control signals in relation to the power of a line and a direct connection to the household power are provided on said induction heating device. The control electronics ensure the power of a line to the power electronics. Advantageously, said induction heating devices have external dimensions which are the same as traditional radiant heating bodies and thus can easily be used in lieu of said traditional radiant heating bodies when constructing said hob.

Abstract: An infrared permeable window 4a, which is surrounded by a light shielding layer 7b and is narrower than an infrared sensor display window 4g, is formed inwardly of the infrared sensor display window 4g, and an infrared incident area 43a for detecting infrared rays of light and a light emitting unit 56a are provided below the infrared permeable window 4a. Also, a light emitting surface 4b is provided inwardly of the infrared permeable window 4a, so that the user can assuredly place a cooking container P on the infrared permeable window 4a.

Abstract: An induction cooker includes a top plate (1) for placing an object to be heated thereon, a heating mode selection key (8) for allowing the user to select one control mode for heating the object to be heated between a manual heating mode in which the heat output is set by the user by using an output adjusting key (9) and at least another control mode in which the heat output is controlled automatically, and a heating off/on key (7) for starting to heat the object to be heated. In the standby mode, the controller starts heating only when the user operates the heating mode selection key (8) to change the mode to the cooking menu selection mode before operating the heating off/on key (7). When a predetermined time has elapsed in the cooking menu selection mode without a change in a selected control mode, the mode is changed to the standby mode.

Abstract: A method and cooktop include a cooktop panel, a cooking zone, and an induction heating device disposed below the cooktop panel. First, second and third heat sensor units are disposed beneath the cooktop panel in a region of a measuring spot. The first heat sensor unit is configured to measure heat flow from substantially only the cooktop panel. The second and third heat sensor units are configured to measure heat flow from the cooktop panel and a cooking utensil disposed thereon. A light source is provided for measuring an emissivity of the bottom of the cooking utensil. An auxiliary heater heats the region of the measuring spot. An electrical control system calculates a ratio from signals of the second and third heat sensor units and determines an actual temperature of the bottom of the cooking utensil from the ratio by using a temperature of a lower surface of the cooktop panel measured by the first sensor unit and a value of the emissivity of the cooking utensil bottom.

Abstract: An induction hob for inductively heating cookware, having an induction coil fed with high-frequency alternating current for supplying the electromagnetic heating power, and a generator device for generating the high-frequency alternating current. In order to prevent noise developing at the cookware, the present disclosure provides for smoothing or eliminating an amplitude modulation of the high-frequency alternating current which flows through the coil.

Abstract: A device for maintaining temperature in food and drink by means of the induction principle. The device comprises a heating mat (10), on which induction containers and other types of containers for food and drink can be placed, and an energy converter (11) for connection to a power supply (46). The energy converter (11) converts the energy from the power supply to induction energy. The heating mat (10) comprises a hotplate (20) of a heat-resistant, non-metallic material, and at least one heating element (22) for generating a varying magnetic field by means of the induction energy from the energy converter (11).

Abstract: An induction cook top with a heat management system is disclosed. The heat management system controls heat produced both internally by the electronic components within the cook top as well as heat produced above the cook top when cooking. The heat management system provides improved air flow past and around the internal electronic components. The cook top features an efficient removal of generated heat and may optionally provide a vented housing and direct airflow into and out of the housing or provide a thermoelectric cooling device which permits a ventless housing.

Abstract: An aircraft induction oven excitation arrangement includes at least one connection for an on-board power supply system, at least one power supply rectifier that can be connected to a phase of the power supply system, a converter that is arranged downstream of the at least one power supply rectifier and that includes a switching element, a controller that drives the at least one converter, a rectifier that is arranged downstream of the converter in order to produce an intermediate circuit voltage, an inverter that is connected to the intermediate circuit voltage. The switching element has a turn-on resistance Rdson ?about 0.1? and a self-capacitance ?about 200 pF at voltages of ?about 200 V across the switching element.

Abstract: An improved system and methods useful for the cooking of one or more food items by the application of a non-ambient temperature developed within a temperature retentive element. The temperature retentive element can be sized and shaped to form a cooking box in which cooking at a temperature relative to the non-ambient temperature may proceed and from which the food item, when fully cooked, may be served.

Abstract: An infrared sensor 26 includes an infrared detection element 26a which is provided on a lower side of a top plate 2 to detect an amount of infrared light radiated from a heated object 20 and an amplifier 26b operable to amplify a signal detected by the infrared detection element 26a. The infrared sensor 26 outputs an initial detection value having a substantially constant magnitude with respect to the temperature of the heated object 20 when the temperature of the heated object 20 is lower than a detection lower limit temperature, and outputs a detection signal having magnitude and rate of increase which become larger as the temperature of the heated object 20 becomes higher in the vicinity of a control temperature range in which the control unit 29 controls the output of the induction heating coils 21a and 21b to perform temperature control of the heated object 20.

Abstract: An infrared sensor 26 is provided on a lower side of a top plate 2 to detect an amount of infrared light radiated from a heated object 20. The infrared sensor 26 outputs an detection signal having a substantially constant magnitude with respect to the temperature of the heated object 20 when the temperature of the heated object 20 is lower than a detection lower limit temperature, and outputs a detection signal having magnitude and rate of increase which become larger as the temperature of the heated object 20 becomes higher when the temperature of the heated object 20 is not lower than the detection lower limit temperature. The control unit 29 includes a storage unit 29a operable to store the output value of the infrared sensor 26 immediately after start of heating as an initial detection value, and reduces the output of the induction heating coils or stops the heating when an increased amount with respect to the initial detection value becomes greater than or equal to a predetermined value.

Abstract: Methods and devices for securing the bottom of an item of cookware to the burner of a stove top by use of magnetism. The magnet(s) may be permanent magnets or electromagnets. The cookware may comprise a permanent magnet disposed on or in the base of the cookware. The burner comprises a magnetic material such as steel or iron. The magnetic material may be in the grate of the cook top, in the electric coil of an electric burners in the surface of a vitroceramic or smooth-top stove top, or other component of the cook top in close proximity to the bottom of the cookware when it is on the cooking surface. The magnetic source prevents the cookware from being accidentally knocked off the cook top.

Abstract: A cooking device, in particular a cooking device for induction hobs, the cooking device including a computation unit, the computation unit having at least one standby mode that is activated as a function of a removal of cookware from a cooking zone; and a warning signal output unit, the warning signal output unit outputting, during a period in which the standby mode has been activated, a warning signal in the event that cookware is again within the cooking zone.

Abstract: The present invention relates to an automatic wafer baking apparatus (1) for baking wafers from a liquid or pasty dough, said apparatus (1) comprising at least two baking moulds (2), each having one pair of top (3) and lower (4) baking plates, said apparatus (1) further comprising moving means (5, 6, 7) for moving at least one plate relative to the other so that each baking mould (2) can move from a closed configuration to an open configuration, heating means for heating the plates (3, 4) to a predetermined baking temperature, means for injecting a predetermined quantity of dough between the baking plates (3, 4) of each mould (2), and means (12, 13) for removing a baked wafer from a baking mould (2), characterized in that each baking mould (2) is stationary in the apparatus (1) and is independent from the other(s).

Abstract: An electric cooker has a hob and a baking oven, said hob having several induction coils as heating devices for several hotplates. The cooker has a control mechanism with control electronics and power electronics with power electronics components, the control mechanism and power electronics being located in the rear area of the hob and above a hob plane. This arrangement leads to reduced heating of the power electronics by the oven.

Abstract: The invention relates to a device for heating up meals. It comprises a housing which can be closed by means of a door and shields the surroundings from electromagnetic waves. One or more functional trays which contain one or more induction coils are held within the housing, in order to be able to inductively heat up meals held in containers so that they can be consumed. The object of the invention is to increase the operational reliability of a device of this type. According to the invention, an electrically conducting element is therefore present on end faces of functional trays which are oriented in the direction of a door opening in the housing. Each individual electrically conducting element is also connected to the local potential, housing potential and/or ground potential, in order to be able to ensure that the surroundings are shielded from electromagnetic waves, even when the housing door is open.