EP2605615B1 - Verfahren zum Übertragen von Daten, Induktionsheizvorrichtung, induktiv beheizbares Kochgefäß und System - Google Patents

Verfahren zum Übertragen von Daten, Induktionsheizvorrichtung, induktiv beheizbares Kochgefäß und System Download PDF

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Publication number
EP2605615B1
EP2605615B1 EP12196863.0A EP12196863A EP2605615B1 EP 2605615 B1 EP2605615 B1 EP 2605615B1 EP 12196863 A EP12196863 A EP 12196863A EP 2605615 B1 EP2605615 B1 EP 2605615B1
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EP
European Patent Office
Prior art keywords
cooking vessel
induction heating
data
receiver
heating device
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.)
Active
Application number
EP12196863.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2605615A2 (de
EP2605615A3 (de
Inventor
Jörg Bögel
Michael Eberle
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
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Publication date
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Priority to PL12196863T priority Critical patent/PL2605615T3/pl
Publication of EP2605615A2 publication Critical patent/EP2605615A2/de
Publication of EP2605615A3 publication Critical patent/EP2605615A3/de
Application granted granted Critical
Publication of EP2605615B1 publication Critical patent/EP2605615B1/de
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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
    • 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

Definitions

  • the invention relates to a method for transmitting data from an induction heating device to a receiver of an inductively heated cooking vessel, an induction heating device, an inductively heated cooking vessel and a system.
  • the not pre-published DE 10 2011 079 689 describes a method for transmitting data from a sensor associated with an inductively heated cooking vessel to a reading device that may be part of an inverter.
  • the inverter may be conventionally provided for generating a drive voltage for an induction heating coil.
  • the EP 0 725 556 A2 shows a method and apparatus for communicating data from a cooking vessel to a cooking facility.
  • the EP 1 708 545 A2 shows an induction heater, in which an inductor is provided as an antenna for transmitting an information signal different from a heating vibration.
  • the invention has for its object to provide a method for transmitting data from an induction heating to a receiver of an inductively heated cooking vessel, an induction heating, an inductively heated cooking vessel and a system to provide that optimize data exchange.
  • the invention solves this object by a method for transmitting data from an induction heating device to a receiver of an inductively heated cooking vessel according to claim 1, an induction heating device according to claim 8, an inductively heated cooking vessel according to claim 9 and a system according to claim 11.
  • Preferred embodiments are the subject of the subclaims, the wording of which is hereby incorporated by reference into the content of the description.
  • the method is used to transmit data from an induction heater to an associated receiver of an inductively heated cooking vessel.
  • the receiver may be designed as an electronic circuit which is arranged at a suitable location of the cooking vessel.
  • the induction heating device comprises: a resonant circuit with an induction heating coil and a (frequency) inverter, which generates a driving voltage with at least one driving frequency from a mains alternating voltage, wherein the resonant circuit is supplied with the driving voltage to produce a magnetic alternating field for heating the cooking vessel ,
  • the data to be transmitted to the receiver are coded by means of the drive frequency. Since the data transmission already existing elements of the inverter (with) are used, can be dispensed with an additional, dedicated transmitter, creating an easy-to-implement and cost-effective data transmission in the direction of the cooking vessel or receiver is possible.
  • the drive frequency can be changed to encode the data to be transmitted to the receiver.
  • the drive frequency relative to a base frequency in a range of 0.1% to 5% can be changed.
  • the base frequency can range from 20kHz to 50kHz. Due to the small change in the base frequency, the heat output generated is essentially unaffected and disturbing, audible interference between different hotplates of the induction heater are avoided.
  • the coding of different data values can take place by means of predetermined different frequency values. If, for example, the data are transmitted in binary representation, for example as data words with 4, 8 or 16 bit data word width each, a digital zero can be assigned a first value of the drive frequency and a digital one can be assigned a second value of the drive frequency.
  • the first and second values of the drive frequency may be constant or variable. For example, a digital zero may be associated with a lower value of the drive frequency and a digital one with a higher value of the drive frequency, or vice versa.
  • a change in the drive frequency can take place in a time range around a zero crossing or in the zero crossing of the mains alternating voltage.
  • the temporal range can be defined, for example, in that an amount of the mains alternating voltage during the range is smaller than a predetermined value, for example less than 25 V, in particular less than 18 V. Such a changeover prevents a disturbing noise development.
  • the receiver may transmit response data to the induction heater depending on the received data. Due to the bidirectional data transmission, the induction heating device can send in the sense of a question-answer mechanism a specific request to the receiver, which responds with a specific response, for example, transmits current sensor data. In this way, a small amount of available bandwidth can be exploited in an optimized way, since not all the data is constantly transmitted but only specifically required data.
  • the induction heating apparatus comprises: a resonant circuit having an induction heating coil and a converter generating a drive voltage of a drive frequency from an AC line voltage, the drive circuit being supplied with the drive circuit to generate a magnetic alternating field for heating the cooking vessel.
  • the converter has a control unit which is designed to control the converter in such a way that the above-mentioned method is carried out.
  • the inductively heatable cooking vessel has a receiver which is designed to decode data transmitted by means of the abovementioned induction heating device by evaluating the drive frequency.
  • the inductively heatable cooking vessel may include a sensor for detecting a cooking vessel specific parameter, for example for detecting a temperature of a food prepared in the cooking vessel.
  • the system is designed to carry out the above-mentioned method and comprises: an above-mentioned induction heating device and an above-mentioned, inductively heated cooking vessel.
  • Fig. 1 shows a system with an inductively heated cooking vessel 9 and an induction heating 1.
  • the inductively heatable cooking vessel 9 has a receiver 10, which is arranged at a suitable location of the cooking vessel and which is adapted to receive data sent by the induction heating device 1.
  • the receiver 10 may be further optionally configured to send data to the induction heating device 1, i. to form a bidirectional transmitter / receiver, and / or to acquire data from a temperature sensor 8 and to send this data to the induction heating device 1.
  • the temperature sensor 8 in the form of a conventional NTC temperature sensor is used to detect a temperature of food to be cooked by the cooking vessel 9, wherein the temperature sensor 8 within the cooking vessel 9, for example, within a cavity, not shown in the side walls or at the bottom of the cooking vessel. 9 or on flexible leads freely movable within the cooking vessel 9, for example in the form of a core temperature sensor, is arranged.
  • the receiver 10 has an antenna in the form of a coil 7, which is coupled inductively or magnetically with an induction heating coil 3 of the induction heating device 1 or coupled in the event of operation.
  • the rectified ones Voltage UP supplies the receiver 10 with operating energy after being smoothed by a smoothing capacitor 12.
  • the receiver 10 further comprises means for changing an effective impedance of the coil 7 in the form of a switching means 14, for example in the form of a transistor, with upstream Begrenzungsrossrossel 13, wherein the switching means 14 between terminals of the coil 7 and the output of the rectifier 11 is looped.
  • a switching means 14 for example in the form of a transistor
  • the receiver 10 further comprises a voltage detector 16 for measuring a level of the rectified antenna voltage UP and a control device in the form of a microcontroller 15, which is designed to conventionally determine data of the temperature sensor 8, for example by means of A / D conversion, and the switching means 14 to control such that the impedance of the coil 7 is changed in response to the detected data of the sensor to transmit the sensor data to the induction heater 1.
  • a voltage detector 16 for measuring a level of the rectified antenna voltage UP
  • a control device in the form of a microcontroller 15 which is designed to conventionally determine data of the temperature sensor 8, for example by means of A / D conversion, and the switching means 14 to control such that the impedance of the coil 7 is changed in response to the detected data of the sensor to transmit the sensor data to the induction heater 1.
  • the induction heating device 1 has a resonant circuit 6, which comprises the induction heating coil 3 and capacitors 4 and 5, wherein the capacitors 4 and 5 are conventionally looped between an intermediate circuit voltage UZK.
  • a converter 2 generates from the mains AC voltage UN, for example by means of a half bridge, a drive voltage UA with a variable drive frequency, wherein the resonant circuit 6 is supplied with the drive voltage UA to produce a magnetic alternating field for heating the cooking vessel 9.
  • the converter 2 has a control device 2a, which by appropriate changing or a suitable choice of the drive frequency encoding effected data to be transmitted, so that data is transmitted to the receiver 10.
  • Fig. 2 shows a time course of a current I through the induction heating coil 3, as it sets in a data transmission in the direction of the receiver 10 by suitably generating the drive voltage UA.
  • the drive voltage UA is generated as a square-wave voltage with a drive frequency f1 of 24.0 kHz, so that the inductor current I also has the drive frequency f1 of 24.0 kHz, the AC line voltage UA forming an envelope.
  • the drive frequency f1 of 24.0 kHz encodes a binary "0".
  • the drive frequency is detected and correspondingly a binary "0" decoded.
  • the drive voltage UA is generated as a square-wave voltage with a drive frequency f2 of 24.2 kHz, so that the inductor current I also has the drive frequency f2 of 24.2 kHz, the AC line voltage UA forming an envelope.
  • the drive frequency f2 of 24.2kHz encodes a binary "1".
  • the drive frequency is detected in the receiver 10 and a binary "1" is correspondingly decoded.
  • the drive voltage is generated again as a square-wave voltage with the drive frequency f1 of 24.0 kHz, so that a binary "0" is decoded in the receiver 10.
  • bit sequence "010" results. It is understood that correspondingly more bits can be transmitted.
  • the data can be transmitted, for example, as data words with a width of 8 bits.
  • suitable synchronization character means suitable frequencies are coded, for example, initiate a start of data transmission or complete the data transfer.
  • the receiver 10 may transmit response data to the induction heater 1 in response to the received data.
  • the transmission can be like in the DE 10 2011 079 689 described described.
  • the receiver 10 may be part of the cooking vessel 9 or be releasably connected to the cooking vessel 9, wherein the coil 7 is provided at a bottom of the cooking vessel 9 and the remaining components may be integrated, for example, in a handle or cavity of the cooking vessel 9, not shown, where they are protected from high temperatures.
  • the receiver 10 or a part thereof for example, be integrated into a plastic frame, which is attached to a conventional cooking vessel.
  • thermo sensors for further measured variables, for example pressure sensors in the case of steam pressure cooking vessels, etc.
  • the frequency difference used should not exceed 400Hz, better 200Hz.
  • the change of the frequency preferably takes place only in or in the vicinity of the network zero crossing of the AC voltage supply UN. This measure also serves to avoid additional noise.
  • the data transfer rate is in the described method without consideration of a protocol overhead in the order of about 100 bits per second.
  • the available bandwidth can be used better in the sense of a question-answer mechanism, since only such data are transmitted from the receiver 10 to the induction heating device 1 by means of specific questions to the receiver 10, which have been previously requested.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Cookers (AREA)
  • General Induction Heating (AREA)
EP12196863.0A 2011-12-16 2012-12-13 Verfahren zum Übertragen von Daten, Induktionsheizvorrichtung, induktiv beheizbares Kochgefäß und System Active EP2605615B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12196863T PL2605615T3 (pl) 2011-12-16 2012-12-13 Sposób transmisji danych, indukcyjne urządzenie grzejne, indukcyjnie ogrzewalne naczynie do gotowania i system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011088918A DE102011088918A1 (de) 2011-12-16 2011-12-16 Verfahren zum Übertragen von Daten, Induktionsheizvorrichtung, induktiv beheizbares Kochgefäß und System

Publications (3)

Publication Number Publication Date
EP2605615A2 EP2605615A2 (de) 2013-06-19
EP2605615A3 EP2605615A3 (de) 2014-01-22
EP2605615B1 true EP2605615B1 (de) 2018-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12196863.0A Active EP2605615B1 (de) 2011-12-16 2012-12-13 Verfahren zum Übertragen von Daten, Induktionsheizvorrichtung, induktiv beheizbares Kochgefäß und System

Country Status (6)

Country Link
US (1) US9603201B2 (zh)
EP (1) EP2605615B1 (zh)
CN (1) CN103260278B (zh)
DE (1) DE102011088918A1 (zh)
ES (1) ES2691216T3 (zh)
PL (1) PL2605615T3 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10004248B2 (en) 2012-07-06 2018-06-26 Conopco, Inc. Package recognition system
PL2781174T3 (pl) 2013-03-21 2016-02-29 Unilever Nv Sposób, urządzenie oraz kapsułka do parzenia napoju
WO2015028076A1 (en) * 2013-08-29 2015-03-05 Arcelik Anonim Sirketi Induction cooking appliance, wireless kitchen appliance and wireless communication system
DE102014108871A1 (de) * 2014-06-25 2015-12-31 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Elektronische Schaltung, Feldgerät umfassend zumindest eine solche elektronische Schaltung und Verfahren
DE102016114838B4 (de) * 2016-08-10 2019-12-05 Miele & Cie. Kg Induktives Kochsystem
EP3914042A1 (en) * 2020-05-20 2021-11-24 Infineon Technologies Austria AG Cooking device, cookware and related methods
WO2024046640A1 (de) * 2022-08-30 2024-03-07 BSH Hausgeräte GmbH Induktionsenergieübertragungssystem

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US3742178A (en) * 1971-12-29 1973-06-26 Gen Electric Induction cooking appliance including cooking vessel having means for wireless transmission of temperature data
GB1428555A (en) * 1972-05-17 1976-03-17 Mitsubishi Electric Corp Induction heating apparatus
DE19502935A1 (de) * 1995-01-31 1996-08-01 Ego Elektro Blanc & Fischer Verfahren und Einrichtung zur Übermittlung von Daten von einem Kochgefäß zu einer Kocheinrichtung
US6320169B1 (en) * 1999-09-07 2001-11-20 Thermal Solutions, Inc. Method and apparatus for magnetic induction heating using radio frequency identification of object to be heated
US6953919B2 (en) * 2003-01-30 2005-10-11 Thermal Solutions, Inc. RFID-controlled smart range and method of cooking and heating
JP4162577B2 (ja) * 2003-11-25 2008-10-08 株式会社東芝 加熱調理器およびその加熱調理器に用いられる調理器具
US7157675B2 (en) * 2004-04-28 2007-01-02 Imura International U.S.A. Inc. Radio frequency identification controlled heatable objects
ES2284317B1 (es) 2005-03-31 2008-07-16 Bsh Electrodomesticos España, S.A. Aparato de calentamiento por induccion.
ITMI20072129A1 (it) * 2007-11-07 2009-05-08 Whirlpool Co Interfaccia utente per il comando di un elettrodomestico collegata a distanza a quest'ultimo
US8350196B2 (en) * 2008-02-06 2013-01-08 Tsi Technologies Llc Radio frequency antenna for heating devices
DE102008054911A1 (de) * 2008-12-18 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Intelligentes Lebensmittelzubereitungsgerät
DE102011079689B4 (de) 2011-07-22 2014-07-03 E.G.O. Elektro-Gerätebau GmbH Temperaturmessung im Kochgefäß

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Also Published As

Publication number Publication date
ES2691216T3 (es) 2018-11-26
EP2605615A2 (de) 2013-06-19
PL2605615T3 (pl) 2019-05-31
EP2605615A3 (de) 2014-01-22
DE102011088918A1 (de) 2013-06-20
CN103260278B (zh) 2017-06-13
US20130153564A1 (en) 2013-06-20
CN103260278A (zh) 2013-08-21
US9603201B2 (en) 2017-03-21

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