EP3634085A1 - Procédé et dispositif de fonctionnement d'une plaque de cuisson, récipient de cuisine et plaque de cuisson - Google Patents

Procédé et dispositif de fonctionnement d'une plaque de cuisson, récipient de cuisine et plaque de cuisson Download PDF

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Publication number
EP3634085A1
EP3634085A1 EP19195140.9A EP19195140A EP3634085A1 EP 3634085 A1 EP3634085 A1 EP 3634085A1 EP 19195140 A EP19195140 A EP 19195140A EP 3634085 A1 EP3634085 A1 EP 3634085A1
Authority
EP
European Patent Office
Prior art keywords
cookware
hob
temperature
signal
designed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19195140.9A
Other languages
German (de)
English (en)
Inventor
Thomas Metz
Volker Ennen
Daniel Ebke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3634085A1 publication Critical patent/EP3634085A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • 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
    • 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
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to a method and a device for operating a hob, as well as cookware and a hob.
  • An induction-capable cookware can have a heat-insulating base in order to be able to be used in conjunction with a hob that has a cooking surface made of a material that has a lower temperature resistance than the glass ceramic and is resistant to temperature changes.
  • a lower temperature resistance compared to glass ceramics means that material at a temperature above 250 ° C can cause discoloration or other damage such as deformation, blistering, cracks, etc.
  • the term temperature resistance also includes resistance to temperature changes.
  • glass ceramics can withstand temperatures of over 500 ° C.
  • the DE102006014818A1 describes such cookware with a heat-insulating bottom.
  • the object of the invention is to provide an improved method for operating a hob, an improved device for operating a hob, and an improved cookware and an improved hob.
  • this object is achieved by a method for operating a hob, a device for operating a hob, and a cookware and a hob according to the main claims.
  • a set-up temperature of a cookware can be recognized in order to control a function of a hob depending on the set-up temperature. This is advantageous in order to be able to limit a temperature on a base of the cookware if a cooking surface of the hob is not formed from a material with a high resistance to temperature changes, such as glass ceramic, but instead, for example, from wood or natural stone. A large number of materials can thus advantageously be used for the cooking surface of the hob.
  • a method for operating a hob comprises a step of reading in and a step of providing.
  • a temperature signal that represents a current set-up temperature of a cookware is read.
  • a control signal is provided which is designed to control a function of the hob.
  • the control signal is provided using a comparison of the set-up temperature represented by the temperature signal with a reference value.
  • the hob can be an induction hob, for example.
  • a cooking surface of the hob can, for example, be formed from a natural stone or from wood.
  • the cookware can be a cooking container such as a pot or a pan, which is suitable for use on such a hob.
  • the cookware can have, for example, an insulating outer wall or an insulating casing.
  • the cookware can have an intrinsic temperature limit or a temperature monitoring mechanism, for example an overtemperature switch.
  • the temperature signal can represent a sensed temperature value and additionally or alternatively a voltage of a temperature-sensitive element.
  • the set-up temperature of the cookware can be recorded on a heat-insulating element such as the outer wall of the cookware.
  • the control signal can be designed to set an output of the hob, for example to reduce the output.
  • the reference value can be, for example, a maximum temperature value, which can be set, for example, depending on the temperature resistance of the cooking surface.
  • the method presented here can be carried out using an appropriately designed cookware. Additionally or alternatively, the method can be carried out using an appropriately designed hob. In addition, the method can also be carried out on a hob system with cookware. Embodiments of the correspondingly designed cookware and hob are described in more detail below.
  • a cooking temperature signal can also be read in in the reading step.
  • the cooking temperature signal may represent a temperature of a content of the cookware.
  • the control signal can be provided using the cooking temperature signal. This is advantageous in order to be able to monitor a cooking process in the cookware and thus on the hob.
  • a recognition signal can be read in in the reading step.
  • the detection signal can represent a type of cookware.
  • the control signal can be generated using the Detection signal are provided.
  • a size of the cookware can also be recognized in order to control the function of the hob depending on the type and size of the cookware. Recognizing the type of cookware is advantageous in order to achieve use of the cookware suitable for the hob.
  • the cookware can be recognized, for example, as dishes with a cold wall, that is, as dishes with an outer wall that is colder than an inner wall of the cookware when the cookware is in an operating state. Damage to the hob due to the use of unsuitable cookware can thus advantageously be avoided.
  • a unique ID of the cookware can also be recognized. This makes it possible to distinguish cookware of the same type from one another in the same size.
  • the control signal can, according to one embodiment, be designed to control switching on and additionally or alternatively switching the hob off as a function of the hob. Additionally or alternatively, the control signal can be designed to control the setting of a power of the hob. In addition, the control signal can also be designed to control the output of a warning signal. If the set-up temperature is above the reference value, for example, the control signal can be designed to switch off the hob or to reduce the power of the hob.
  • the warning signal can be output, for example, as an acoustic or visual signal from the hob. Additionally or alternatively, the warning signal can also be output using a warning device of the cookware.
  • the method can also include a step of sensing the current set-up temperature of the cookware.
  • the result of the sensing can be provided as the temperature signal.
  • the cookware and additionally or alternatively the hob can comprise, for example, a temperature measuring device which is designed to detect the temperature signal.
  • a sensor element for example a temperature sensor, can be arranged on the heat-insulating outer wall of the cookware.
  • the set-up temperature can advantageously be detected quickly and reliably in this way. In this way, the set-up temperature can also be monitored over a period of time, for example during operation of the hob.
  • a device for operating a hob comprises a reading device and a provision device.
  • the reading device is designed to read in a temperature signal which represents a current set-up temperature of a cookware.
  • the provision device is designed to transmit a control signal Provide control of a function of the hob.
  • the control signal is provided using a comparison of the set-up temperature represented by the temperature signal with a reference value.
  • the device presented here can also be designed to carry out, control or implement the steps of a variant of the method presented here in corresponding devices.
  • This embodiment variant of the invention in the form of a device can also achieve the object on which the invention is based quickly and efficiently.
  • the device can be designed to read input signals and to determine and provide output signals using the input signals.
  • An input signal can represent, for example, a sensor signal that can be read in via an input interface of the device.
  • An output signal can represent a control signal or a data signal that can be provided at an output interface of the device.
  • the device can be designed to determine the output signals using a processing rule implemented in hardware or software.
  • the device can comprise a logic circuit, an integrated circuit or a software module and can be implemented, for example, as a discrete component or can be comprised by a discrete component.
  • a computer program product or computer program with program code which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory, is also advantageous. If the program product or program is executed on a computer or a device, the program product or program can be used to carry out, implement and / or control the steps of the method according to one of the embodiments described above.
  • the cookware comprises an embodiment of the above-mentioned device for operating a hob.
  • the cookware is used in conjunction with the hob with the cooking surface made of a material with a limited resistance to temperature changes, such as wood or natural stone, a certain floor temperature of the cookware can advantageously be maintained.
  • the cookware can have an outer wall which is designed to be thermally insulated.
  • the cookware can have an inner wall which is designed to be heatable by means of electromagnetic induction.
  • the cookware can serve as an outer wall, for example a heat-insulating floor exhibit.
  • the cookware can also be formed in two parts and, for example, have an inner container made of stainless steel, which can be inserted into a heat-insulating casing.
  • the cookware can also have an induction coil.
  • the induction coil can be arranged, for example, as a heating element in an intermediate space between an outer wall and an inner wall on the bottom of the cookware. If the reference value of the temperature signal is reached or exceeded, the coil can, for example, be short-circuited or disconnected.
  • the control signal can represent, for example, an impedance change.
  • the cookware can comprise a temperature measuring device.
  • the temperature measuring device can comprise, for example, a sensor element which is designed to detect the set-up temperature of the cookware.
  • the temperature measuring device can also be designed to detect a temperature in or on the cooking container of the cookware in order to monitor a cooking process.
  • the cookware can additionally or alternatively also comprise a communication interface.
  • the communication interface can be designed for wireless transmission of an electrical signal. Additionally or alternatively, the communication interface can be designed to transmit an acoustic and / or visual signal.
  • the communication interface can also be designed to connect the cookware to the hob with signal transmission.
  • the control signal can be provided from the cookware to the hob, for example, via the communication interface. If the control signal is designed to control the warning signal, it can be transmitted, for example, as an acoustic signal.
  • the cookware can also include a sound generating device and, additionally or alternatively, a display element. In this case, when the reference value is reached or exceeded, the cookware can be designed to emit an acoustic and / or visual warning in order to warn a user of the cookware.
  • the hob includes an embodiment of the above-mentioned device for operating the hob.
  • the hob can be used, for example, in connection with an embodiment of the cookware described.
  • the hob can also have a hob communication interface for wireless transmission of an electrical and / or acoustic and / or visual signal.
  • the cooktop communication interface may be similar to the cookware communication interface described above or correspond.
  • the communication interface can be designed to connect the hob to the cookware so that it can transmit signals.
  • FIG. 1 shows a schematic representation of a device 100 for operating a hob according to an embodiment.
  • the device 100 comprises a reading device 105 and a provision device 110.
  • the reading device 105 is designed to read a temperature signal 115.
  • the temperature signal 115 represents a current set-up temperature of a cookware 120.
  • the provision device 110 is designed to provide a control signal 125 for controlling a function of the hob.
  • the control signal 125 is provided using a comparison of the set-up temperature represented by the temperature signal 115 with a reference value.
  • the temperature signal is provided here, for example, by the cookware 120.
  • the device 100 shown here can be arranged in the cookware 120 or in the hob.
  • the control signal 125 is optionally provided to the cooktop or to the cookware 120.
  • the reading device 105 is additionally designed to read in a cooking temperature signal 130.
  • the cooking temperature signal 130 represents a temperature of a content of the cookware 120.
  • the provision device 110 is designed to provide the control signal 125 using the cooking temperature signal 130.
  • the reading device 105 is designed to read in a recognition signal 135.
  • the detection signal 135 represents a type of cookware 120.
  • the provision device 110 is then designed to provide the control signal 125 using the detection signal 135.
  • control signal 125 is designed to control switching on and additionally or alternatively switching the hob off as a function of the hob.
  • the control signal 125 is designed to control the setting of a power of the hob and, additionally or alternatively, to control the output of a warning signal.
  • FIG 2 shows a schematic representation of a cookware 120 and a hob 205 with a device 100 for operating the hob 205 according to an embodiment.
  • the hob 205 has a cooking surface 210 and comprises the device 100, which is based on the Fig. 1 described device is similar or equivalent.
  • a cooking pot is shown as an example of cookware 120.
  • the cooking surface 210 can be formed, for example, from wood or a natural stone.
  • the cookware 120 has an outer wall 215 which is designed to be thermally insulated. Accordingly, this layer of the cookware 120, the outer wall 215, is also referred to as a heat insulator or as "cold outer wall insulation".
  • the outer wall 215 comprises, for example, a thermal insulation material, or the Curie temperature of the outer wall 215 is reduced.
  • the cookware 120 also has an inner wall 220 which is designed to be heatable by means of electromagnetic induction.
  • the cookware 120 here has, for example, a cooking container with the inner wall 220 and a heat insulator with the outer wall 215.
  • the cooking container is correspondingly formed from an active material for induction.
  • the cookware 120 can also be made in two parts: in this case, the outer wall 215 is shaped as a heat-insulating shell, and the cooking container is shaped to be removable from the shell.
  • cookware 120 also includes a temperature measuring device 225 and a communication interface 230 for wireless transmission of an electrical and / or acoustic and / or visual signal.
  • the temperature measuring device 225 has, for example, four sensor elements which are designed as thermocouples:
  • a first temperature sensor 240 is arranged on a footprint, that is to say the bottom of the cookware 120.
  • the first temperature sensor 240 is accordingly referred to as "temperature sensor insulation - installation surface”.
  • the first temperature sensor 240 is designed to detect the current set-up temperature of the cookware 120 in order to provide the temperature signal.
  • a second temperature sensor 241 is arranged on an outer side of the inner wall 220 in the direction of the installation surface of the cookware 120, and is also referred to as a “temperature sensor of the pan base”.
  • a third temperature sensor 242 and a fourth temperature sensor 243 are also arranged on a lateral section of the inner wall.
  • the third temperature sensor 242 and the fourth temperature sensor 243 are also referred to as "temperature sensor pot wall”.
  • the hob 205 is designed to perform a function of the hob 205 in response to the control signal, that is to say to reduce the power, for example, to switch off the hob 205 or to issue a warning signal.
  • hob 205 may include a hob communication interface that is similar or corresponds to communication interface 230 shown here.
  • FIG 3 shows a schematic representation of a cookware 120 with a device 100 for operating a hob according to an embodiment.
  • the cookware 120 comprises the device 100, which is arranged, for example, between the inner wall 220 and the outer wall 215.
  • the cookware also includes the communication interface 130 and the second, third and fourth temperature sensors 241, 242, 243.
  • the cookware according to the exemplary embodiment shown here comprises an overtemperature switch 305, which is arranged on the inside of the outer wall 215 in the direction of the mounting surface of the cookware 120 instead of the first temperature sensor.
  • the overtemperature switch 305 can be designed as a bimetal switch and is designed to switch when the setpoint temperature is reached or exceeded.
  • the temperature signal represents a discrete value, that is to say 0 or 1.
  • the overtemperature switch 305 and the temperature sensors 241, 242, 243 are connected here by way of example to the communication interface 130.
  • the communication interface is designed to transmit the control signal to the hob.
  • FIG. 4 shows a schematic representation of a cookware 120 according to an embodiment.
  • the cookware 120 shown here is similar or corresponds to the cookware described with reference to the previous figures.
  • the outer wall 215 is designed to be thermally insulated
  • the inner wall 220 is designed to be heatable by means of electromagnetic induction.
  • the cookware 120 has the temperature measuring device with the first temperature sensor 241, the second temperature sensor 242 and the third temperature sensor 243, as well as the communication interface 230 and the overtemperature switch 305.
  • the cookware 120 also includes an induction coil 405.
  • the induction coil 405 is designed here to supply the communication interface 230 with voltage, which is energy-saving and can also be referred to as energy harvesting.
  • the overtemperature switch 305 is connected to the induction coil 405 and is designed to interrupt the voltage supply between the induction coil 405 and the communication interface 230 when the reference value of the set-up temperature is reached or exceeded in order to control the hob to switch off or reduce the power.
  • the function of the Hob in response to a lack of communication between communication interface 230 and the hob.
  • FIG. 5 shows a schematic representation of a cookware 120 according to an embodiment.
  • the cookware 120 shown here is similar or corresponds to the cookware described with reference to the previous figures, and in this case includes the overtemperature switch 305 and the induction coil 405.
  • the cookware 120 here includes, for example, an acoustic module 505 for sound generation, which can include a loudspeaker, for example.
  • the cookware can also comprise a visual module, which can have a light-emitting diode, for example.
  • the overtemperature switch 305 is connected to the acoustic module 505 and is designed to switch the voltage applied to the acoustic module 505 when the reference value of the set-up temperature is reached or exceeded in order to trigger the output of a warning signal.
  • the overtemperature switch 305 is connected to a coil such as the induction coil 405 shown here.
  • the acoustic module 505 is here arranged, for example, in the outer wall of the cookware 120 and can also be referred to as a warning signal generator.
  • the output of an acoustic warning signal by means of the acoustic module 505 and additionally or alternatively a visual warning signal by means of the visual module can be designed to indicate to a user of the cookware 120 or the hob that the hob is being switched off or reduced.
  • FIG 6 shows a schematic representation of a cookware 120 according to an embodiment.
  • the cookware 120 shown here is similar or corresponds to the cookware described with reference to previous figures, and includes the overtemperature switch 305 and the induction coil 405, which are connected to one another and are arranged, for example, in the region of the pan bottom between the inner wall and the outer wall of the cookware 120.
  • the overtemperature switch 305 is designed to short-circuit the induction coil 405 when the reference value of the set-up temperature is reached or exceeded, or to disconnect the connection to the induction coil 405.
  • the control signal is designed to control the function of the hob in response to the change in impedance in order to switch the hob off or to reduce the power of the hob.
  • FIG. 7 shows a flow diagram of a method 700 for operating a hob according to an exemplary embodiment.
  • the method 700 shown here can be carried out in connection with the device described above.
  • the method 700 includes one Step 705 of reading in and step 710 of providing.
  • a temperature signal which represents a current set-up temperature of a cookware, is read in.
  • a control signal that is designed to control a function of the hob is provided. The control signal is provided using a comparison of the set-up temperature represented by the temperature signal with a reference value.
  • method 700 also includes a step 715 of sensing the current set-up temperature of the cookware.
  • the result of the sensing is provided as the temperature signal.
  • the step 715 of the sensing is optionally carried out before the step 705 of the reading.
  • an embodiment includes a "and / or" link between a first feature and a second feature, it should be read in such a way that the embodiment according to one embodiment includes both the first feature and the second feature and according to a further embodiment either only that has the first feature or only the second feature.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)
EP19195140.9A 2018-10-02 2019-09-03 Procédé et dispositif de fonctionnement d'une plaque de cuisson, récipient de cuisine et plaque de cuisson Pending EP3634085A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018124319.7A DE102018124319A1 (de) 2018-10-02 2018-10-02 Verfahren und Vorrichtung zum Betreiben eines Kochfelds, Kochgeschirr und Kochfeld

Publications (1)

Publication Number Publication Date
EP3634085A1 true EP3634085A1 (fr) 2020-04-08

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EP19195140.9A Pending EP3634085A1 (fr) 2018-10-02 2019-09-03 Procédé et dispositif de fonctionnement d'une plaque de cuisson, récipient de cuisine et plaque de cuisson

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EP (1) EP3634085A1 (fr)
DE (1) DE102018124319A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022127999A1 (de) 2022-10-24 2024-04-25 Miele & Cie. Kg Verfahren zum Betrieb eines induktiven Kochsystems
EP4368076A1 (fr) * 2022-11-09 2024-05-15 Miele & Cie. KG Ustensile de cuisson, système de cuisson et procédé de fonctionnement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020121052A1 (de) 2020-08-11 2022-02-17 Miele & Cie. Kg Sicherheitsvorrichtung für ein Kochfeld, Identifikationseinrichtung, Kochsystem und Verfahren zum Betreiben einer Sicherheitsvorrichtung
DE102021108567A1 (de) 2021-04-07 2022-10-13 Miele & Cie. Kg System, umfassend ein Induktionskochfeld und ein Küchenutensil, Verfahren zum Betrieb des Systems, Computerprogrammprodukt und computerlesbarer Datenträger

Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2007134257A (ja) * 2005-11-14 2007-05-31 Matsushita Electric Ind Co Ltd 誘導加熱調理器
DE102006014818A1 (de) 2006-03-29 2007-10-11 Electrolux Home Products Corporation N.V. Vorrichtung zum Zubereiten und/oder Warmhalten von Gargut
DE102008054911A1 (de) * 2008-12-18 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Intelligentes Lebensmittelzubereitungsgerät
CH711124A2 (de) * 2015-05-26 2016-11-30 Condeco Tech Ag Induktionskochsystem mit Temperaturregelung.
EP3225918A1 (fr) * 2016-03-28 2017-10-04 LG Electronics Inc. Plateau de table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007134257A (ja) * 2005-11-14 2007-05-31 Matsushita Electric Ind Co Ltd 誘導加熱調理器
DE102006014818A1 (de) 2006-03-29 2007-10-11 Electrolux Home Products Corporation N.V. Vorrichtung zum Zubereiten und/oder Warmhalten von Gargut
DE102008054911A1 (de) * 2008-12-18 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Intelligentes Lebensmittelzubereitungsgerät
CH711124A2 (de) * 2015-05-26 2016-11-30 Condeco Tech Ag Induktionskochsystem mit Temperaturregelung.
EP3225918A1 (fr) * 2016-03-28 2017-10-04 LG Electronics Inc. Plateau de table

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022127999A1 (de) 2022-10-24 2024-04-25 Miele & Cie. Kg Verfahren zum Betrieb eines induktiven Kochsystems
EP4368076A1 (fr) * 2022-11-09 2024-05-15 Miele & Cie. KG Ustensile de cuisson, système de cuisson et procédé de fonctionnement

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