EP3784001A1 - Induction cooking system for induction cooking system comprising a temperature sensor, induction cooking system and method for operating the induction cooking system - Google Patents
Induction cooking system for induction cooking system comprising a temperature sensor, induction cooking system and method for operating the induction cooking system Download PDFInfo
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- EP3784001A1 EP3784001A1 EP20181810.1A EP20181810A EP3784001A1 EP 3784001 A1 EP3784001 A1 EP 3784001A1 EP 20181810 A EP20181810 A EP 20181810A EP 3784001 A1 EP3784001 A1 EP 3784001A1
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- induction
- cookware
- coil
- temperature
- cooking system
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- 238000010411 cooking Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000001939 inductive effect Effects 0.000 claims abstract description 36
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- 238000001514 detection method Methods 0.000 description 19
- 238000011161 development Methods 0.000 description 9
- 230000018109 developmental process Effects 0.000 description 9
- 238000004804 winding Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
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- 230000008901 benefit Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/06—Cook-top or cookware capable of communicating with each other
Definitions
- the invention relates to an induction cookware for an induction cooking system of the type mentioned in the preamble of claim 1, an induction cooking system of the type mentioned in the preamble of claim 8 and a method for operating an induction cooking system.
- the known induction cookware for induction cooking systems include, for example, an induction coil for inductive coupling with an inductive heating coil of the induction hob, a temperature sensor for detecting a temperature of the induction cookware and a controller for evaluating output signals from the temperature sensor, the controller being connected to the temperature sensor for signal transmission.
- the inductive heating coil of the induction hob is also referred to as the primary coil
- the induction coil of the induction cookware is also referred to as the secondary coil.
- the secondary coil has the task of providing an operating voltage for the cookware through the inductive coupling, for example for operating a motor or a heating device, or for the cookware electronics, for example for the acquisition and processing of sensor data.
- the known induction cooking systems also include the aforementioned induction hob with the inductive heating coil.
- temperature regulation or temperature control when heating the cookware placed on the hob is desirable in order, for example, to increase the ease of use for a user and / or to improve the quality of the cooking process.
- the most accurate possible temperature detection on the cookware is necessary.
- the most accurate possible temperature detection on the cookware is desirable.
- the invention thus poses the problem of improving temperature detection in induction cookware.
- an induction cookware with the features of claim 1, which is characterized in that the induction coil is designed as the temperature sensor and the induction coil can be controlled with a DC measuring voltage for the purpose of detecting the temperature of the induction cookware by means of the controller. Furthermore, this problem is solved by an induction cooking system having the features of claim 8 and a method for operating an induction cooking system having the features of claim 9.
- the advantage that can be achieved with the invention is, in particular, that temperature detection is improved in the case of induction cookware.
- the invention it is now possible to detect the temperature in an induction cookware for an induction cooking system in a simple manner in terms of construction and circuitry. Due to the multiple use of the induction coil of the induction cookware, on the one hand a reduction in components and on the other hand a space-saving design of the temperature sensor and thus of the induction cookware is made possible. Furthermore, the additional design and circuit complexity in the manufacture of the induction cookware according to the invention is reduced.
- the temperature detection of the induction cookware according to the invention is realized independently of the induction hob of the induction cooking system, since the temperature detection of the induction cookware takes place entirely by means of the induction cookware.
- the induction cookware according to the invention can be freely selected within wide suitable limits and can, for example, be designed as a saucepan or pan.
- the induction coil of the induction cookware can be freely selected within wide suitable limits in terms of type, material, dimensions, geometry, arrangement and number.
- An advantageous development of the induction cookware according to the invention provides that the material of the induction coil has a temperature-dependent electrical resistance.
- the induction cookware according to the invention can be implemented in a particularly simple manner.
- An advantageous development of the two last-mentioned embodiments of the induction cookware according to the invention provides that the electrical resistance of the Material of the induction coil in a predetermined operating temperature sub-range of an operating temperature range of the induction cookware has a higher temperature dependency compared to operating temperatures of the induction cookware outside this operating temperature sub-range. This enables a particularly accurate temperature measurement of the induction cookware in this operating temperature sub-range of the operating temperature range of the induction cookware according to the invention.
- a particularly advantageous development of the induction cookware according to the invention provides that the induction coil is arranged on or in a base of the induction cookware.
- the temperature of the induction cookware on or in the base of the induction cookware is particularly interesting and advantageous for temperature regulation or temperature control of the induction cookware. Furthermore, this results in a simple assignment of the induction coil of the induction cookware to the inductive heating coil of the induction hob of the induction cooking system according to the invention.
- the geometry of the induction coil can be freely selected within wide, suitable limits.
- An advantageous development of the aforementioned embodiment of the induction cookware according to the invention provides that the induction coil is designed and arranged in such a way that it is arranged at different radial distances from a center of the base on or in the base. In this way, the quality of the bottom-side temperature detection is improved in the induction cookware according to the invention.
- the temperature detected by means of the induction coil represents an average value over the entire induction coil, that is to say, for example, over an entire winding length of an induction coil designed as a winding. If the aforementioned winding forms a circle, for example, only the temperatures at the circular contact surface of the induction coil with the base, that is, only along a single radial distance from the center of the base of the induction cookware, are determined.
- the induction coil has a plurality of circular line segments that are connected to one another in an electrically conductive manner and are arranged concentrically to one another.
- the quality of the bottom-side temperature detection in the induction cookware according to the invention is improved in a structurally particularly simple manner.
- An advantageous development of the method according to the invention provides that current is supplied to the inductive heating coil of the induction hob for the purpose of heating the induction cookware while the temperature of the induction cookware is being recorded is interrupted.
- the quality of the temperature detection in the induction cookware according to the invention is improved in a simple manner in terms of circuitry.
- the operation of the inductive heating coil of the induction hob of the induction cooking system according to the invention can be clocked in such a way that the temperature detection of the induction cookware according to the invention takes place in the cycle times in which the inductive heating coil of the induction hob is not energized.
- These cycle times can expediently be selected to be very short, so that, for example, heating of the induction cookware by means of the induction hob is not noticeably delayed.
- a further advantageous development of the method according to the invention provides that the evaluation of the output signals of the induction coil designed as a temperature sensor in the control takes place in such a way that a direct component corresponding to the measurement direct voltage is separated from an alternating component of an alternating voltage coupled into the induction coil by means of the inductive heating coil .
- This enables high-quality temperature detection in the induction cookware according to the invention, even while the inductive heating coil of the induction hob of the induction cooking system according to the invention is energized.
- the inductive heating of the induction cookware by means of the inductive heating coil of the induction hob and the temperature detection of the induction cookware by means of the induction cookware's induction coil designed as a temperature sensor can therefore take place simultaneously.
- FIGs. 1 to 3 an embodiment of the induction cooking system according to the invention and a first embodiment of the induction cookware according to the invention are shown by way of example.
- the induction cooking system 2 has an induction hob 4 with an inductive heating coil 6 and an induction cookware designed as a cooking pot, wherein the induction cookware 8 is one in the Fig. 2 and 3
- the illustrated induction coil 10 for inductive coupling with the inductive heating coil 6 of the induction hob 4 for the purpose of providing electrical energy in the induction cookware 8.
- the shape of the induction cookware 8 is in the Fig. 2 and 3 each symbolized only by a dashed line 11.
- the induction coil 10 is designed to detect a temperature of the induction cookware 8 according to the invention at the same time as a temperature sensor and with one in the Fig. 2 control 12 shown for evaluating output signals of the induction coil 10 designed as a temperature sensor connected to transmit signals.
- the signal transmission connection between the induction coil 10 and the controller 12 is symbolized by a line 14.
- the induction coil 10 can be controlled by means of the controller 12 with a DC measuring voltage.
- the induction coil 10 of the induction cookware 8 is arranged in a base 16 of the induction cookware 8.
- the material of the induction coil 10 is designed as copper and has a temperature-dependent electrical resistance. The temperature dependence of the electrical resistance of the material is essentially linear in an operating temperature range of the induction cookware 8.
- the geometry of the induction coil 10 according to the first embodiment of the induction cookware 8 results from the Fig. 3 .
- the induction coil 10 is designed and arranged such that it is arranged at a radial distance from a center 18 of the base 16 on the base 16.
- FIG. 4 a second embodiment of the induction cookware according to the invention is shown. Identical or equivalent components are in the Figs. 1 to 4 provided with the same reference numerals.
- the second embodiment of the induction cookware according to the invention is explained below only to the extent of the differences from the first embodiment of the induction cookware. Otherwise, reference is made to the above statements on the first embodiment of the induction cookware according to the invention. This also applies to the functional interaction with the induction hob according to the present exemplary embodiment of the induction cooking system according to the invention.
- the induction coil 10 in the second embodiment of the induction cookware 8 according to the invention is designed and arranged on the induction cookware 8 in such a way that the induction coil 10 is at different radial distances from the center 18 of the base 16 on the floor 16 is arranged.
- the induction coil 10 has two circular line segments 20, 22 that are electrically conductively connected to one another and are arranged concentrically to one another.
- the electrically conductive connection is in the Fig. 4 represented by a line 24.
- the quality of the bottom-side temperature detection in the induction cookware 8 is improved.
- the temperature detected by means of the induction coil 10 represents an average value over the entire induction coil 10, that is to say, for example, over an entire winding length of an induction coil 10 designed as a winding. If the aforementioned winding forms a circle, for example, as in the first exemplary embodiment of the induction cookware 8 according to the invention according to FIG Fig. 3 , only the temperatures at the circular contact surface of the induction coil 10 with the base 16, that is, only along a single radial distance from the center 18 of the base 16 of the induction cookware 8, are determined.
- a user places the induction cookware 8 with a cooked item in it on a hotplate of the induction hob 4 of the induction cooking system 2 and selects a hotplate for this hotplate in a manner known to those skilled in the art.
- the food to be cooked is designed as water, for example, and is not shown.
- the hotplate corresponds to the inductive heating coil 6 of the induction hob 4. See Fig. 1 .
- the inductive heating coil 6 of the induction hob 4 is energized in a manner known to those skilled in the art, so that the induction cookware 8 and thus the water in it heats up.
- electrical energy is provided in the form of an operating voltage for the cookware electronics by means of the inductive coupling between the inductive heating coil 6 of the induction hob 4 and the induction coil 10 of the induction cookware 8 on the induction coil 10 of the induction cookware.
- the induction coil 10 of the induction cookware 8 is designed not only to provide electrical energy for the cookware electronics of the induction cookware 8, but also as a temperature sensor for detecting the bottom temperature of the induction cookware 8. Due to the heating of the induction cookware 8, the temperature-dependent electrical resistance of the induction coil 10, which is made of copper, also changes. This temperature-dependent change in the electrical resistance of the induction coil 10 of the induction cookware 8 is measured by the control 12 by means of the control of the induction coil 10 with the DC measurement voltage and evaluated by the control 12, to which the induction coil 10 is connected in a signal-transmitting manner.
- the evaluation of the output signals forwarded from the induction coil 10 to the controller 12 via the signal transmission connection 14 is relatively simple, so that the bottom temperature of the induction cookware 8 can be calculated from it without much Effort can be determined.
- the inductive heating coil 6 of the induction hob 4 is clocked, i.e. energized in such a way that the temperature of the induction cookware 8 is recorded in the cycle times in which the inductive heating coil 6 of the induction hob 4 is not energized. These cycle times are selected to be so short that the heating of the induction cookware 8 and thus the water contained therein by means of the induction hob 4 is not noticeably delayed.
- the invention in accordance with the present exemplary embodiments, it is thus possible to detect the temperature of an induction cookware for an induction cooking system in a simple manner in terms of construction and circuitry. Due to the multiple use of the induction coil of the induction cookware, on the one hand there is a reduction in components and on the other hand a space-saving design of the temperature sensor and thus the Induction cookware allows. Furthermore, the additional design and circuitry effort in the production of the induction cookware according to the invention is reduced. In addition, the temperature detection of the induction cookware according to the invention is implemented independently of the induction hob of the induction cooking system, since the temperature of the induction cookware is completely measured by means of the induction cookware.
- the invention is not limited to the exemplary embodiments explained above.
- the invention can be used advantageously both in the household and in the professional sector.
- the induction cookware according to the invention can be freely selected within wide suitable limits and can, for example, also be designed as a pan.
- the type, material, dimensioning, geometry, arrangement and number of the induction coil can be freely selected within wide suitable limits.
- materials and geometries that differ from the above-mentioned material and the above-mentioned geometry of the induction coil are also possible for the induction coil.
- the electrical resistance of the material of the induction coil has a higher temperature dependency in a predetermined operating temperature sub-range of an operating temperature range compared to operating temperatures of the induction cookware outside this operating temperature sub-range. This enables particularly accurate temperature measurement of the induction cookware in this operating temperature sub-range of the operating temperature range of the induction cookware according to the invention.
- the evaluation of the output signals of the induction coil designed as a temperature sensor in the control takes place in such a way that a direct component corresponding to the measurement direct voltage is separated from an alternating component of an alternating voltage coupled into the induction coil by means of the inductive heating coil .
- this can be done by means of low-pass filtering.
- This enables high quality temperature detection in the induction cookware according to the invention even while the inductive heating coil of the induction hob of the induction cooking system according to the invention is energized.
- the inductive heating of the induction cookware by means of the inductive heating coil of the induction hob and the temperature detection of the induction cookware by means of the induction cookware's induction coil designed as a temperature sensor can therefore take place simultaneously.
- the provision of electrical energy in the induction cookware can also be carried out simultaneously with the inductive heating of the induction cookware and / or the temperature detection of the induction cookware by means of the induction coil of the induction cookware designed as a temperature sensor.
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Abstract
Die Erfindung betrifft ein Induktionskochgeschirr (8) für ein Induktionskochsystem (2) mit einem Induktionskochfeld (4), umfassend eine Induktionsspule (10) zur induktiven Kopplung mit einer induktiven Heizspule (6) des Induktionskochfelds (4) zwecks Bereitstellung einer elektrischen Spannung in dem Induktionskochgeschirr (8), einen Temperatursensor zur Erfassung einer Temperatur des Induktionskochgeschirrs (8) und eine Steuerung (12) zur Auswertung von Ausgangssignalen des Temperatursensors, wobei die Steuerung (12) mit dem Temperatursensor signalübertragend verbunden ist.Um eine Temperaturerfassung bei einem Induktionskochgeschirr (8) zu verbessern, wird vorgeschlagen, dass die Induktionsspule (10) als der Temperatursensor ausgebildet ist und die Induktionsspule (10) zwecks Erfassung der Temperatur des Induktionskochgeschirrs (8) mittels der Steuerung (12) mit einer Messgleichspannung ansteuerbar ist.Ferner betrifft die Erfindung ein Induktionskochsystem (2) und ein Verfahren zu dessen Betrieb.The invention relates to an induction cookware (8) for an induction cooking system (2) with an induction hob (4), comprising an induction coil (10) for inductive coupling with an inductive heating coil (6) of the induction hob (4) for the purpose of providing an electrical voltage in the induction cookware (8), a temperature sensor for detecting a temperature of the induction cookware (8) and a controller (12) for evaluating output signals from the temperature sensor, the controller (12) being connected to the temperature sensor in a signal-transmitting manner. To improve, it is proposed that the induction coil (10) is designed as the temperature sensor and the induction coil (10) can be controlled by means of the controller (12) with a DC measuring voltage for the purpose of detecting the temperature of the induction cookware (8) (2) and a procedure for des in operation.
Description
Die Erfindung betrifft ein Induktionskochgeschirr für ein Induktionskochsystem der im Oberbegriff des Patentanspruchs 1 genannten Art, ein Induktionskochsystem der im Oberbegriff des Patentanspruchs 8 genannten Art und ein Verfahren zum Betrieb eines Induktionskochsystems.The invention relates to an induction cookware for an induction cooking system of the type mentioned in the preamble of claim 1, an induction cooking system of the type mentioned in the preamble of
Derartige Induktionskochgeschirre, Induktionskochsysteme und Verfahren zum Betrieb von Induktionskochsystemen sind aus dem Stand der Technik in einer Vielzahl von Ausführungsformen bereits vorbekannt.Such induction cookware, induction cooking systems and methods for operating induction cooking systems are already known from the prior art in a large number of embodiments.
Die bekannten Induktionskochgeschirre für Induktionskochsysteme umfassen beispielsweise eine Induktionsspule zur induktiven Kopplung mit einer induktiven Heizspule des Induktionskochfelds, einen Temperatursensor zur Erfassung einer Temperatur des Induktionskochgeschirrs und eine Steuerung zur Auswertung von Ausgangssignalen des Temperatursensors, wobei die Steuerung mit dem Temperatursensor signalübertragend verbunden ist. Die induktive Heizspule des Induktionskochfelds wird auch als Primärspule bezeichnet, während die Induktionsspule des Induktionskochgeschirrs auch als Sekundärspule bezeichnet wird. Die Sekundärspule hat zum einen die Aufgabe, durch die induktive Kopplung eine Betriebsspannung das Kochgeschirr, zum Beispiel zum Betrieb eines Motors oder einer Heizeinrichtung, beziehungsweise für die Kochgeschirrelektronik, zum Beispiel für das Erfassen und aufbereiten von Sensordaten, bereitzustellen. Zum anderen kann über die Kopplung eine Art Kommunikation zwischen Primärspule und Sekundärspule und somit zwischen Kochfeld und Kochgeschirr stattfinden, beispielsweise zur Übertrgung von Sensordaten. Die bekannten Induktionskochsysteme umfassen zusätzlich das vorgenannte Induktionskochfeld mit der induktiven Heizspule.The known induction cookware for induction cooking systems include, for example, an induction coil for inductive coupling with an inductive heating coil of the induction hob, a temperature sensor for detecting a temperature of the induction cookware and a controller for evaluating output signals from the temperature sensor, the controller being connected to the temperature sensor for signal transmission. The inductive heating coil of the induction hob is also referred to as the primary coil, while the induction coil of the induction cookware is also referred to as the secondary coil. On the one hand, the secondary coil has the task of providing an operating voltage for the cookware through the inductive coupling, for example for operating a motor or a heating device, or for the cookware electronics, for example for the acquisition and processing of sensor data. On the other hand, a type of communication between the primary coil and the secondary coil and thus between the hob and cookware can take place via the coupling, for example for the transmission of sensor data. The known induction cooking systems also include the aforementioned induction hob with the inductive heating coil.
Allgemein ist bei Kochvorgängen auf Kochfeldern eine Temperaturregelung oder Temperatursteuerung bei der Beheizung des auf dem Kochfeld aufgestellten Kochgeschirrs wünschenswert, um beispielsweise den Bedienkomfort für einen Benutzer zu erhöhen und/oder die Qualität des Kochvorgangs zu verbessern. Hierfür ist eine möglichst genaue Temperaturerfassung an dem Kochgeschirr erforderlich. Auch zur Gewährleistung eines sicheren Betriebs des aus Kochfeld und Kochgeschirr gebildeten Kochsystems ist eine möglichst genaue Temperaturerfassung an dem Kochgeschirr anzustreben.In general, during cooking processes on hobs, temperature regulation or temperature control when heating the cookware placed on the hob is desirable in order, for example, to increase the ease of use for a user and / or to improve the quality of the cooking process. For this, the most accurate possible temperature detection on the cookware is necessary. In order to ensure safe operation of the cooking system made up of the hob and cookware, the most accurate possible temperature detection on the cookware is desirable.
Der Erfindung stellt sich somit das Problem, eine Temperaturerfassung bei einem Induktionskochgeschirr zu verbessern.The invention thus poses the problem of improving temperature detection in induction cookware.
Erfindungsgemäß wird dieses Problem durch ein Induktionskochgeschirr mit den Merkmalen des Patentanspruchs 1 gelöst, das dadurch gekennzeichnet ist, dass die Induktionsspule als der Temperatursensor ausgebildet ist und die Induktionsspule zwecks Erfassung der Temperatur des Induktionskochgeschirrs mittels der Steuerung mit einer Messgleichspannung ansteuerbar ist. Ferner wird dieses Problem durch ein Induktionskochsystem mit den Merkmalen des Patentanspruchs 8 und ein Verfahren zum Betrieb eines Induktionskochsystems mit den Merkmalen des Patentanspruchs 9 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by an induction cookware with the features of claim 1, which is characterized in that the induction coil is designed as the temperature sensor and the induction coil can be controlled with a DC measuring voltage for the purpose of detecting the temperature of the induction cookware by means of the controller. Furthermore, this problem is solved by an induction cooking system having the features of
Der mit der Erfindung erreichbare Vorteil besteht insbesondere darin, dass eine Temperaturerfassung bei einem Induktionskochgeschirr verbessert ist. Mittels der Erfindung ist es nun möglich, die Temperatur bei einem Induktionskochgeschirr für ein Induktionskochsystem auf konstruktiv und schaltungstechnisch einfache Weise zu erfassen. Aufgrund der Mehrfachverwendung der Induktionsspule des Induktionskochgeschirrs ist zum einen eine Bauteilreduzierung und zum anderen eine platzsparende Ausführung des Temperatursensors und damit des Induktionskochgeschirrs ermöglicht. Ferner ist der zusätzliche konstruktive und schaltungstechnische Aufwand bei der Herstellung des erfindungsgemäßen Induktionskochgeschirrs reduziert. Darüber hinaus ist die erfindungsgemäße Temperaturerfassung des Induktionskochgeschirrs unabhängig von dem Induktionskochfeld des Induktionskochsystems realisiert, da die Temperaturerfassung des Induktionskochgeschirrs vollständig mittels des Induktionskochgeschirrs erfolgt. Das erfindungsgemäße Induktionskochgeschirr ist in weiten geeigneten Grenzen frei wählbar und kann beispielsweise als ein Kochtopf oder als eine Pfanne ausgebildet sein.The advantage that can be achieved with the invention is, in particular, that temperature detection is improved in the case of induction cookware. By means of the invention it is now possible to detect the temperature in an induction cookware for an induction cooking system in a simple manner in terms of construction and circuitry. Due to the multiple use of the induction coil of the induction cookware, on the one hand a reduction in components and on the other hand a space-saving design of the temperature sensor and thus of the induction cookware is made possible. Furthermore, the additional design and circuit complexity in the manufacture of the induction cookware according to the invention is reduced. In addition, the temperature detection of the induction cookware according to the invention is realized independently of the induction hob of the induction cooking system, since the temperature detection of the induction cookware takes place entirely by means of the induction cookware. The induction cookware according to the invention can be freely selected within wide suitable limits and can, for example, be designed as a saucepan or pan.
Grundsätzlich ist die Induktionsspule des Induktionskochgeschirrs nach Art, Material, Dimensionierung, Geometrie, Anordnung und Anzahl in weiten geeigneten Grenzen frei wählbar. Eine vorteilhafte Weiterbildung des erfindungsgemäßen Induktionskochgeschirrs sieht vor, dass das Material der Induktionsspule einen temperaturabhängigen elektrischen Widerstand aufweist. Hierdurch ist das erfindungsgemäße Induktionskochgeschirr auf besonders einfache Weise realisierbar.In principle, the induction coil of the induction cookware can be freely selected within wide suitable limits in terms of type, material, dimensions, geometry, arrangement and number. An advantageous development of the induction cookware according to the invention provides that the material of the induction coil has a temperature-dependent electrical resistance. As a result, the induction cookware according to the invention can be implemented in a particularly simple manner.
Eine vorteilhafte Weiterbildung der vorgenannten Ausführungsform des erfindungsgemäßen Induktionskochgeschirrs sieht vor, dass die Temperaturabhängigkeit des elektrischen Widerstands in einem Betriebstemperaturbereich des Induktionskochgeschirrs im Wesentlichen linear ist. Auf diese Weise ist die Auswertung der Ausgangssignale des Temperatursensors, also der Induktionsspule des Induktionskochgeschirrs, vereinfacht.An advantageous development of the aforementioned embodiment of the induction cookware according to the invention provides that the temperature dependence of the electrical resistance is essentially linear in an operating temperature range of the induction cookware. In this way, the evaluation of the output signals of the temperature sensor, that is, of the induction coil of the induction cookware, is simplified.
Eine vorteilhafte Weiterbildung der beiden letztgenannten Ausführungsformen des erfindungsgemäßen Induktionskochgeschirrs sieht vor, dass der elektrische Widerstand des Materials der Induktionsspule in einem vorher festgelegten Betriebstemperaturteilbereich eines Betriebstemperaturbereichs des Induktionskochgeschirrs eine im Vergleich zu Betriebstemperaturen des Induktionskochgeschirrs außerhalb dieses Betriebstemperaturteilbereichs höhere Temperaturabhängigkeit aufweist. Hierdurch ist in diesem Betriebstemperaturteilbereich des Betriebstemperaturbereichs des erfindungsgemäßen Induktionskochgeschirrs eine besonders genaue Temperaturmessung des Induktionskochgeschirrs ermöglicht.An advantageous development of the two last-mentioned embodiments of the induction cookware according to the invention provides that the electrical resistance of the Material of the induction coil in a predetermined operating temperature sub-range of an operating temperature range of the induction cookware has a higher temperature dependency compared to operating temperatures of the induction cookware outside this operating temperature sub-range. This enables a particularly accurate temperature measurement of the induction cookware in this operating temperature sub-range of the operating temperature range of the induction cookware according to the invention.
Eine besonders vorteilhafte Weiterbildung des erfindungsgemäßen Induktionskochgeschirrs sieht vor, dass die Induktionsspule an oder in einem Boden des Induktionskochgeschirrs angeordnet ist. Die Temperatur des Induktionskochgeschirrs an oder in dem Boden des Induktionskochgeschirrs ist für eine Temperaturregelung oder eine Temperatursteuerung des Induktionskochgeschirrs besonders interessant und vorteilhaft. Ferner ergibt sich dadurch eine einfache Zuordnung der Induktionsspule des Induktionskochgeschirrs zu der induktiven Heizspule des Induktionskochfelds des erfindungsgemäßen Induktionskochsystems.A particularly advantageous development of the induction cookware according to the invention provides that the induction coil is arranged on or in a base of the induction cookware. The temperature of the induction cookware on or in the base of the induction cookware is particularly interesting and advantageous for temperature regulation or temperature control of the induction cookware. Furthermore, this results in a simple assignment of the induction coil of the induction cookware to the inductive heating coil of the induction hob of the induction cooking system according to the invention.
Wie oben bereits ausgeführt, ist die Induktionsspule unter anderem in deren Geometrie in weiten geeigneten Grenzen frei wählbar. Eine vorteilhafte Weiterbildung der vorgenannten Ausführungsform des erfindungsgemäßen Induktionskochgeschirrs sieht vor, dass die Induktionsspule derart ausgebildet und angeordnet ist, dass diese in voneinander verschiedenen radialen Abständen von einem Zentrum des Bodens an oder in dem Boden angeordnet ist. Auf diese Weise ist die Qualität der bodenseitigen Temperaturerfassung bei dem erfindungsgemäßen Induktionskochgeschirr verbessert. Dies ist deshalb der Fall, da die mittels der Induktionsspule erfasste Temperatur einen Mittelwert über die gesamte Induktionsspule, also beispielsweise über eine gesamte Wicklungslänge einer als Wicklung ausgebildeten Induktionsspule, darstellt. Bildet die vorgenannte Wicklung beispielsweise einen Kreis, so werden auch nur die Temperaturen an der kreisförmigen Kontaktfläche der Induktionsspule mit dem Boden, also lediglich entlang eines einzigen radialen Abstands von dem Zentrum des Bodens des Induktionskochgeschirrs, ermittelt.As already stated above, the geometry of the induction coil, among other things, can be freely selected within wide, suitable limits. An advantageous development of the aforementioned embodiment of the induction cookware according to the invention provides that the induction coil is designed and arranged in such a way that it is arranged at different radial distances from a center of the base on or in the base. In this way, the quality of the bottom-side temperature detection is improved in the induction cookware according to the invention. This is the case because the temperature detected by means of the induction coil represents an average value over the entire induction coil, that is to say, for example, over an entire winding length of an induction coil designed as a winding. If the aforementioned winding forms a circle, for example, only the temperatures at the circular contact surface of the induction coil with the base, that is, only along a single radial distance from the center of the base of the induction cookware, are determined.
Eine vorteilhafte Weiterbildung der letztgenannten Ausführungsform des erfindungsgemäßen Induktionskochgeschirrs sieht vor, dass die Induktionsspule eine Mehrzahl von miteinander elektrisch leitend verbundenen und zueinander konzentrisch angeordneten Kreisliniensegmenten aufweist. Hierdurch ist die Qualität der bodenseitigen Temperaturerfassung bei dem erfindungsgemäßen Induktionskochgeschirr auf konstruktiv besonders einfache Weise verbessert.An advantageous development of the last-mentioned embodiment of the induction cookware according to the invention provides that the induction coil has a plurality of circular line segments that are connected to one another in an electrically conductive manner and are arranged concentrically to one another. As a result, the quality of the bottom-side temperature detection in the induction cookware according to the invention is improved in a structurally particularly simple manner.
Eine vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass eine Bestromung der induktiven Heizspule des Induktionskochfeldes zwecks Beheizung des Induktionskochgeschirrs während der Erfassung der Temperatur des Induktionskochgeschirrs unterbrochen wird. Auf diese Weise ist die Qualität der Temperaturerfassung bei dem erfindungsgemäßen Induktionskochgeschirr auf schaltungstechnisch einfache Weise verbessert. Beispielsweise kann der Betrieb der induktiven Heizspule des Induktionskochfelds des erfindungsgemäßen Induktionskochsystems derart getaktet sein, dass die Temperaturerfassung bei dem erfindungsgemäßen Induktionskochgeschirr in den Taktzeiten erfolgt, in denen die induktive Heizspule des Induktionskochfelds nicht bestromt wird. Diese Taktzeiten können zweckmäßigerweise sehr kurz gewählt werden, so dass beispielsweise ein Aufheizen des Induktionskochgeschirrs mittels des Induktionskochfelds nicht merklich verzögert wird.An advantageous development of the method according to the invention provides that current is supplied to the inductive heating coil of the induction hob for the purpose of heating the induction cookware while the temperature of the induction cookware is being recorded is interrupted. In this way, the quality of the temperature detection in the induction cookware according to the invention is improved in a simple manner in terms of circuitry. For example, the operation of the inductive heating coil of the induction hob of the induction cooking system according to the invention can be clocked in such a way that the temperature detection of the induction cookware according to the invention takes place in the cycle times in which the inductive heating coil of the induction hob is not energized. These cycle times can expediently be selected to be very short, so that, for example, heating of the induction cookware by means of the induction hob is not noticeably delayed.
Alternativ dazu sieht eine weitere vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens vor, dass die Auswertung der Ausgangssignale der als Temperatursensor ausgebildeten Induktionsspule in der Steuerung derart erfolgt, dass ein zu der Messgleichspannung korrespondierender Gleichanteil von einem Wechselanteil einer mittels der induktiven Heizspule in die Induktionsspule eingekoppelten Wechselspannung getrennt wird. Hierdurch ist eine qualitativ hochwertige Temperaturerfassung bei dem erfindungsgemäßen Induktionskochgeschirr auch während der Bestromung der induktiven Heizspule des Induktionskochfelds des erfindungsgemäßen Induktionskochsystems ermöglicht. Die induktive Beheizung des Induktionskochgeschirrs mittels der induktiven Heizspule des Induktionskochfelds sowie die Temperaturerfassung bei dem Induktionskochgeschirr mittels der als Temperatursensor ausgebildeten Induktionsspule des Induktionskochgeschirrs können also gleichzeitig stattfinden.Alternatively, a further advantageous development of the method according to the invention provides that the evaluation of the output signals of the induction coil designed as a temperature sensor in the control takes place in such a way that a direct component corresponding to the measurement direct voltage is separated from an alternating component of an alternating voltage coupled into the induction coil by means of the inductive heating coil . This enables high-quality temperature detection in the induction cookware according to the invention, even while the inductive heating coil of the induction hob of the induction cooking system according to the invention is energized. The inductive heating of the induction cookware by means of the inductive heating coil of the induction hob and the temperature detection of the induction cookware by means of the induction cookware's induction coil designed as a temperature sensor can therefore take place simultaneously.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen rein schematisch dargestellt und werden nachfolgend näher beschrieben. Es zeigt
- Figur 1
- ein Ausführungsbeispiel des erfindungsgemäßen Induktionskochsystems in einer perspektivischen Frontansicht,
Figur 2- ein erstes Ausführungsbeispiel des erfindungsgemäßen Induktionskochgeschirrs in einer geschnittenen Seitenansicht, in teilweiser Darstellung,
- Figur 3
- das erste Ausführungsbeispiel des erfindungsgemäßen Induktionskochgeschirrs in einer geschnittenen Bodenansicht, in teilweiser Darstellung und
Figur 4- ein zweites Ausführungsbeispiel des erfindungsgemäßen Induktionskochgeschirrs in einer geschnittenen Bodenansicht, in teilweiser Darstellung.
- Figure 1
- an embodiment of the induction cooking system according to the invention in a perspective front view,
- Figure 2
- a first embodiment of the induction cookware according to the invention in a sectional side view, in partial representation,
- Figure 3
- the first embodiment of the induction cookware according to the invention in a sectioned bottom view, in partial representation and
- Figure 4
- a second embodiment of the induction cookware according to the invention in a sectional bottom view, in partial representation.
In den
Das Induktionskochsystem 2 weist ein Induktionskochfeld 4 mit einer induktiven Heizspule 6 und ein als Kochtopf ausgebildetes Induktionskochgeschirr 8 auf, wobei das Induktionskochgeschirr 8 eine in den
Wie aus der
Die Geometrie der Induktionsspule 10 gemäß dem ersten Ausführungsbeispiel des Induktionskochgeschirrs 8 ergibt sich aus der
Alternativ dazu ist in der
Im Unterschied zu dem ersten Ausführungsbeispiel des erfindungsgemäßen Induktionskochgeschirrs 8 ist die Induktionsspule 10 bei dem zweiten Ausführungsbeispiel des erfindungsgemäßen Induktionskochgeschirrs 8 derart ausgebildet und an dem Induktionskochgeschirr 8 angeordnet, dass die Induktionsspule 10 in voneinander verschiedenen radialen Abständen von dem Zentrum 18 des Bodens 16 an dem Boden 16 angeordnet ist. Hierfür weist die Induktionsspule 10 zwei miteinander elektrisch leitend verbundene und zueinander konzentrisch angeordnete Kreisliniensegmente 20, 22 auf. Die elektrisch leitende Verbindung ist in der
Auf diese Weise ist die Qualität der bodenseitigen Temperaturerfassung bei dem Induktionskochgeschirr 8 verbessert. Dies ist deshalb der Fall, da die mittels der Induktionsspule 10 erfasste Temperatur einen Mittelwert über die gesamte Induktionsspule 10, also beispielsweise über eine gesamte Wicklungslänge einer als Wicklung ausgebildeten Induktionsspule 10, darstellt. Bildet die vorgenannte Wicklung beispielsweise einen Kreis, wie bei dem ersten Ausführungsbeispiel des erfindungsgemäßen Induktionskochgeschirrs 8 gemäß der
Im Nachfolgenden wird die Funktionsweise des erfindungsgemäßen Induktionskochsystems und des erfindungsgemäßen Induktionskochgeschirrs sowie das erfindungsgemäße Verfahren gemäß den vorliegenden Ausführungsbeispielen und anhand der
Ein nicht dargestellter Benutzer stellt das Induktionskochgeschirr 8 mit einem darin befindlichen Kochgut auf eine Kochstelle des Induktionskochfelds 4 des Induktionskochsystems 2 auf und wählt auf dem Fachmann bekannte Weise eine Kochstufe für diese Kochstelle aus. Das Kochgut ist beispielsweise als Wasser ausgebildet und nicht dargestellt. Die Kochstelle korrespondiert zu der induktiven Heizspule 6 des Induktionskochfelds 4. Siehe
Nachdem der Benutzer die gewünschte Kochstufe zur Beheizung des Induktionskochgeschirrs 8 ausgewählt hat, wird die induktive Heizspule 6 des Induktionskochfelds 4 auf dem Fachmann bekannte Weise bestromt, so dass sich das Induktionskochgeschirr 8 und damit das darin befindliche Wasser aufheizt. Mit der Bestromung der induktiven Heizspule 6 des Induktionskochfelds 4 wird mittels der induktiven Kopplung zwischen der induktiven Heizspule 6 des Induktionskochfelds 4 und der Induktionsspule 10 des Induktionskochgeschirrs 8 an der Induktionsspule 10 des Induktionskochgeschirrs 8 elektrische Energie in Form einer Betriebsspannung für die Kochgeschirrelektronik bereitgestellt.After the user has selected the desired cooking level for heating the
Die Induktionsspule 10 des Induktionskochgeschirrs 8 ist erfindungsgemäß nicht lediglich zur Bereitstellung von elektrischer Energie für die Kochgeschirrelektronik des Induktionsgeschirrs 8, sondern gleichzeitig als Temperatursensor zur Erfassung der bodenseitigen Temperatur des Induktionskochgeschirrs 8 ausgebildet. Aufgrund der Aufheizung des Induktionskochgeschirrs 8 verändert sich auch der temperaturabhängige elektrische Widerstand der Induktionsspule 10, die aus Kupfer hergestellt ist. Diese temperaturabhängige Änderung des elektrischen Widerstands der Induktionsspule 10 des Induktionskochgeschirrs 8 wird mittels der Ansteuerung der Induktionsspule 10 mit der Messgleichspannung durch die Steuerung 12 gemessen und mittels der Steuerung 12, mit der die Induktionsspule 10 signalübertragend verbunden ist, ausgewertet. Aufgrund der über den Betriebstemperaturbereich des Induktionskochgeschirrs 8 im Wesentlichen linearen Temperaturabhängigkeit des elektrischen Widerstands der Induktionsspule 10 ist die Auswertung der von der Induktionsspule 10 mittels der Signalübertragungsverbindung 14 an die Steuerung 12 weitergeleiteten Ausgangssignale relativ einfach, so dass daraus die bodenseitige Temperatur des Induktionskochgeschirrs 8 ohne großen Aufwand ermittelt werden kann.According to the invention, the
Damit die oben erläuterte Temperaturerfassung mittels der als Temperatursensor ausgebildeten Induktionsspule 10 des Induktionskochgeschirrs 8 nicht in ungewünschter Weise beeinträchtigt wird, ist es bei dem erfindungsgemäßen Verfahren gemäß dem vorliegenden Ausführungsbeispiel vorgesehen, dass die Bestromung der induktiven Heizspule 6 des Induktionskochfelds 4 zwecks Beheizung des Induktionskochgeschirrs 8 während der Erfassung der bodenseitigen Temperatur des Induktionskochgeschirrs 8 unterbrochen wird. Hierfür wird die induktive Heizspule 6 des Induktionskochfelds 4 derart getaktet angesteuert, also getaktet bestromt, dass die Temperaturerfassung bei dem Induktionskochgeschirr 8 in den Taktzeiten erfolgt, in denen die induktive Heizspule 6 des Induktionskochfelds 4 nicht bestromt wird. Diese Taktzeiten sind derart kurz gewählt, dass das Aufheizen des Induktionskochgeschirrs 8 und damit des darin enthaltenen Wassers mittels des Induktionskochfelds 4 nicht merklich verzögert wird.So that the above-explained temperature detection by means of the
Das erfindungsgemäße Verfahren zum Betrieb des erfindungsgemäßen Induktionskochsystems gemäß dem vorliegenden Ausführungsbeispiel ist für die beiden oben erläuterten Ausführungsbeispiele des erfindungsgemäßen Induktionskochgeschirrs identisch.The method according to the invention for operating the induction cooking system according to the invention in accordance with the present exemplary embodiment is identical for the two exemplary embodiments of the induction cookware according to the invention explained above.
Mittels der Erfindung gemäß der vorliegenden Ausführungsbeispiele ist es somit möglich, die Temperatur bei einem Induktionskochgeschirr für ein Induktionskochsystem auf konstruktiv und schaltungstechnisch einfache Weise zu erfassen. Aufgrund der Mehrfachverwendung der Induktionsspule des Induktionskochgeschirrs ist zum einen eine Bauteilreduzierung und zum anderen eine platzsparende Ausführung des Temperatursensors und damit des Induktionskochgeschirrs ermöglicht. Ferner ist der zusätzliche konstruktive und schaltungstechnische Aufwand bei der Herstellung des erfindungsgemäßen Induktionskochgeschirrs reduziert. Darüber hinaus ist die erfindungsgemäße Temperaturerfassung des Induktionskochgeschirrs unabhängig von dem Induktionskochfeld des Induktionskochsystems realisiert, da die Temperaturerfassung des Induktionskochgeschirrs vollständig mittels des Induktionskochgeschirrs erfolgt.By means of the invention in accordance with the present exemplary embodiments, it is thus possible to detect the temperature of an induction cookware for an induction cooking system in a simple manner in terms of construction and circuitry. Due to the multiple use of the induction coil of the induction cookware, on the one hand there is a reduction in components and on the other hand a space-saving design of the temperature sensor and thus the Induction cookware allows. Furthermore, the additional design and circuitry effort in the production of the induction cookware according to the invention is reduced. In addition, the temperature detection of the induction cookware according to the invention is implemented independently of the induction hob of the induction cooking system, since the temperature of the induction cookware is completely measured by means of the induction cookware.
Die Erfindung ist nicht auf die oben erläuterten Ausführungsbeispiele begrenzt. Beispielsweise ist die Erfindung sowohl im Haushalt wie auch im professionellen Bereich vorteilhaft einsetzbar. Ferner ist das erfindungsgemäße Induktionskochgeschirr in weiten geeigneten Grenzen frei wählbar und kann beispielsweise auch als eine Pfanne ausgebildet sein. Darüber hinaus ist die Induktionsspule nach Art, Material, Dimensionierung, Geometrie, Anordnung und Anzahl in weiten geeigneten Grenzen frei wählbar. Beispielsweise sind auch von dem oben genannten Material und der oben genannten Geometrie der Induktionsspule abweichende Materialien und Geometrien für die Induktionsspule möglich.The invention is not limited to the exemplary embodiments explained above. For example, the invention can be used advantageously both in the household and in the professional sector. Furthermore, the induction cookware according to the invention can be freely selected within wide suitable limits and can, for example, also be designed as a pan. In addition, the type, material, dimensioning, geometry, arrangement and number of the induction coil can be freely selected within wide suitable limits. For example, materials and geometries that differ from the above-mentioned material and the above-mentioned geometry of the induction coil are also possible for the induction coil.
Denkbar ist auch, dass der elektrische Widerstand des Materials der Induktionsspule in einem vorher festgelegten Betriebstemperaturteilbereich eines Betriebstemperaturbereichs eine im Vergleich zu Betriebstemperaturen des Induktionskochgeschirrs außerhalb dieses Betriebstemperaturteilbereichs höhere Temperaturabhängigkeit aufweist. Hierdurch ist in diesem Betriebstemperaturteilbereich des Betriebstemperaturbereichs des erfindungsgemäßen Induktionskochgeschirrs eine besonders genaue Temperaturmessung des Induktionskochgeschirrs ermöglicht.It is also conceivable that the electrical resistance of the material of the induction coil has a higher temperature dependency in a predetermined operating temperature sub-range of an operating temperature range compared to operating temperatures of the induction cookware outside this operating temperature sub-range. This enables particularly accurate temperature measurement of the induction cookware in this operating temperature sub-range of the operating temperature range of the induction cookware according to the invention.
Im Unterschied zu dem oben erläuterten Verfahren ist es auch möglich, dass die Auswertung der Ausgangssignale der als Temperatursensor ausgebildeten Induktionsspule in der Steuerung derart erfolgt, dass ein zu der Messgleichspannung korrespondierender Gleichanteil von einem Wechselanteil einer mittels der induktiven Heizspule in die Induktionsspule eingekoppelten Wechselspannung getrennt wird. Beispielsweise kann dies mittels einer Tiefpassfilterung erfolgen. Hierdurch ist eine qualitativ hochwertige Temperaturerfassung bei dem erfindungsgemäßen Induktionskochgeschirr auch während der Bestromung der induktiven Heizspule des Induktionskochfelds des erfindungsgemäßen Induktionskochsystems ermöglicht. Die induktive Beheizung des Induktionskochgeschirrs mittels der induktiven Heizspule des Induktionskochfelds sowie die Temperaturerfassung bei dem Induktionskochgeschirr mittels der als Temperatursensor ausgebildeten Induktionsspule des Induktionskochgeschirrs können also gleichzeitig stattfinden.In contrast to the method explained above, it is also possible that the evaluation of the output signals of the induction coil designed as a temperature sensor in the control takes place in such a way that a direct component corresponding to the measurement direct voltage is separated from an alternating component of an alternating voltage coupled into the induction coil by means of the inductive heating coil . For example, this can be done by means of low-pass filtering. This enables high quality temperature detection in the induction cookware according to the invention even while the inductive heating coil of the induction hob of the induction cooking system according to the invention is energized. The inductive heating of the induction cookware by means of the inductive heating coil of the induction hob and the temperature detection of the induction cookware by means of the induction cookware's induction coil designed as a temperature sensor can therefore take place simultaneously.
Gemäß einerm weiteren Aspekt der Erfindung kann auch das Bereitstellen von elektrischer Energie in dem Induktionskochgeschirr gleichzeitig mit der induktiven Beheizung des Induktionskochgeschirrs und/oder der Temperaturerfassung bei dem Induktionskochgeschirr mittels der als Temperatursensor ausgebildeten Induktionsspule des Induktionskochgeschirrs erfolgen.According to a further aspect of the invention, the provision of electrical energy in the induction cookware can also be carried out simultaneously with the inductive heating of the induction cookware and / or the temperature detection of the induction cookware by means of the induction coil of the induction cookware designed as a temperature sensor.
Claims (11)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019119731.7A DE102019119731A1 (en) | 2019-07-22 | 2019-07-22 | Induction cookware for an induction cooking system with a temperature sensor, induction cooking system and method for operating the induction cooking system |
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| Publication Number | Publication Date |
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| EP3784001A1 true EP3784001A1 (en) | 2021-02-24 |
| EP3784001B1 EP3784001B1 (en) | 2022-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20181810.1A Active EP3784001B1 (en) | 2019-07-22 | 2020-06-24 | Induction cooking system for induction cooking system comprising a temperature sensor, induction cooking system and method for operating the induction cooking system |
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| Country | Link |
|---|---|
| EP (1) | EP3784001B1 (en) |
| DE (1) | DE102019119731A1 (en) |
| ES (1) | ES2920965T3 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064386A1 (en) * | 2004-12-17 | 2006-06-22 | Access Business Group International Llc | Heating system and heater |
| DE102010020189A1 (en) * | 2009-05-15 | 2011-01-27 | BSH Bosch und Siemens Hausgeräte GmbH | Heating device for use in induction hob to heat cookware element i.e. wok, has upper induction coil producing induced current in cookware element and connected to lower induction coil, where coils are of different forms |
| DE102010039072A1 (en) * | 2010-08-09 | 2012-02-09 | BSH Bosch und Siemens Hausgeräte GmbH | Apparatus for operating household appliance i.e. smart pot, has communication interface receiving information from external communication medium, where apparatus displays received information in operation unit |
| DE102010038894A1 (en) * | 2010-08-04 | 2012-02-09 | Siemens Aktiengesellschaft | measuring system |
| WO2013098016A1 (en) * | 2011-12-29 | 2013-07-04 | Arcelik Anonim Sirketi | Wireless kitchen appliance operated on an induction heating cooker |
| DE102015222797A1 (en) * | 2015-11-18 | 2017-05-18 | BSH Hausgeräte GmbH | System with cooking utensil and cookware |
| CN107806943A (en) * | 2017-10-18 | 2018-03-16 | 维沃移动通信有限公司 | A kind of coil temperature detection method and mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008054911A1 (en) * | 2008-12-18 | 2010-06-24 | BSH Bosch und Siemens Hausgeräte GmbH | Smart food preparation device |
| US9955529B2 (en) * | 2009-01-06 | 2018-04-24 | Access Business Group International Llc | Smart cookware |
| DE102012207847A1 (en) * | 2012-05-10 | 2013-11-14 | Behr-Hella Thermocontrol Gmbh | Device for inductive heating of a radiator |
| JP6406829B2 (en) * | 2014-02-10 | 2018-10-17 | トクデン株式会社 | Induction heating roller device and induction coil temperature detection mechanism |
-
2019
- 2019-07-22 DE DE102019119731.7A patent/DE102019119731A1/en not_active Ceased
-
2020
- 2020-06-24 ES ES20181810T patent/ES2920965T3/en active Active
- 2020-06-24 EP EP20181810.1A patent/EP3784001B1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064386A1 (en) * | 2004-12-17 | 2006-06-22 | Access Business Group International Llc | Heating system and heater |
| DE102010020189A1 (en) * | 2009-05-15 | 2011-01-27 | BSH Bosch und Siemens Hausgeräte GmbH | Heating device for use in induction hob to heat cookware element i.e. wok, has upper induction coil producing induced current in cookware element and connected to lower induction coil, where coils are of different forms |
| DE102010038894A1 (en) * | 2010-08-04 | 2012-02-09 | Siemens Aktiengesellschaft | measuring system |
| DE102010039072A1 (en) * | 2010-08-09 | 2012-02-09 | BSH Bosch und Siemens Hausgeräte GmbH | Apparatus for operating household appliance i.e. smart pot, has communication interface receiving information from external communication medium, where apparatus displays received information in operation unit |
| WO2013098016A1 (en) * | 2011-12-29 | 2013-07-04 | Arcelik Anonim Sirketi | Wireless kitchen appliance operated on an induction heating cooker |
| DE102015222797A1 (en) * | 2015-11-18 | 2017-05-18 | BSH Hausgeräte GmbH | System with cooking utensil and cookware |
| CN107806943A (en) * | 2017-10-18 | 2018-03-16 | 维沃移动通信有限公司 | A kind of coil temperature detection method and mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| "COIL OVERHEATING PROTECTION CIRCUIT", IBM TECHNICAL DISCLOSURE BULLETIN,, vol. 28, no. 10, 1 March 1986 (1986-03-01), pages 4484 - 4485, XP001411951 * |
Also Published As
| Publication number | Publication date |
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| ES2920965T3 (en) | 2022-08-12 |
| DE102019119731A1 (en) | 2021-01-28 |
| EP3784001B1 (en) | 2022-06-22 |
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