EP2798911B1 - Kommunikationssystem für ein induktionserwärmungskochfeld - Google Patents

Kommunikationssystem für ein induktionserwärmungskochfeld Download PDF

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Publication number
EP2798911B1
EP2798911B1 EP12812998.8A EP12812998A EP2798911B1 EP 2798911 B1 EP2798911 B1 EP 2798911B1 EP 12812998 A EP12812998 A EP 12812998A EP 2798911 B1 EP2798911 B1 EP 2798911B1
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EP
European Patent Office
Prior art keywords
communication system
appliance
cooktop
encoding unit
induction coil
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.)
Revoked
Application number
EP12812998.8A
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English (en)
French (fr)
Other versions
EP2798911A1 (de
Inventor
Yagiz TEZEL
Onur Yaman
Ahmet Yorukoglu
Sefa Hazir
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Arcelik AS
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Arcelik AS
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Publication date
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Application filed by Arcelik AS filed Critical Arcelik AS
Priority to PL12812998T priority Critical patent/PL2798911T3/pl
Publication of EP2798911A1 publication Critical patent/EP2798911A1/de
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Publication of EP2798911B1 publication Critical patent/EP2798911B1/de
Revoked 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
    • H05B6/10—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
    • 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 present invention relates to a communication system that provides data transfer between the induction heating cooktop and the wireless kitchen appliances on the induction heating cooktop.
  • the use of kitchen appliances that are operated with the principle of wireless power transmission on the induction heating cooktop is known.
  • the wireless kitchen appliances are ferromagnetic heating containers like pots and pans, active heating devices like kettle, coffee machine, toaster or electromechanical devices like mixer, blender that are operated with the electric motor.
  • Communication means like RFID, WIFI that send RF communication signals are used for providing communication of the wireless kitchen appliances with the induction heating cooktop.
  • a transmitting antenna is disposed on the wireless kitchen appliance and a receiving antenna on the induction heating cooktop and thus data transfer between the appliance - cooktop is provided.
  • the cooktop detects what type of appliance is placed thereon and the appliance is provided to control the cooktop.
  • the heating temperature is adjusted by means of the user interface thereon and the cooktop is provided to heat the appliance depending on the adjusted heating temperature thereon.
  • Some problems are encountered in the use of the said communication means like RFID, WIFI.
  • the magnetic field created by the induction coils disposed in the cooktop adversely affects the signal transmittance of the communication means.
  • the RF receiving antenna can contact the components in the control card and its signal receiving is disrupted.
  • the communication signals get mixed up and operating more than one appliance on the cooktop is not possible.
  • the RF transmitting and receiving antennas project outwards both from the appliance and from the cooktop and there is not enough area for concealing the antennas.
  • the cost of the said communication means is quite high.
  • the International Patent Application No. WO9941950 relates to a cooking vessel that is used in induction heating cooktops.
  • the International Patent Application No. WO2010080738 relates to a smart cookware that is wirelessly operated with an inductive power supply.
  • US7355150 relates to a cooking appliance that is energized with non-contact power supply.
  • the aim of the present invention is the realization of a communication system that provides data transfer between the wireless kitchen appliance and the induction heating cooktop whereon the appliance is operated without using communication means like RFID, WIFI.
  • the communication system realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, provides data transfer between an induction heating cooktop and a kitchen appliance like kettle, coffee machine, mixer or blender that is operated wirelessly on the cooktop.
  • the data relating to identification information and operational parameters are recorded in the microcontroller of the appliance.
  • the power transferred from the induction coil in the cooktop is partially collected by means of a receiver coil disposed in the appliance and the power (current and/or voltage) received from the induction coil by the receiver coil is modulated by increasing/decreasing by means of an encoding unit.
  • a decoding unit disposed in the cooktop decodes the power change data received from the encoding unit and delivers as on/off signal chains to the microprocessor of the cooktop.
  • the cooktop microprocessor detects the type of appliance depending on the signals received from the decoding unit and operates the appliance on the cooktop in accordance with the operational parameters entered from the user interface in the appliance.
  • the encoding unit comprises resistors connected in parallel to the receiver coil and switching means that provides the current received by the receiver coil to be changed by actuating or deactuating the resistors.
  • the encoding unit comprises resonant capacitors connected in parallel to the receiver coil and switching means that provides the current and the voltage received by the receiver coil to be changed by actuating or deactuating the resonant capacitors.
  • the decoding unit detects the power changes formed by the encoding unit by means of a current measuring unit that measures the current of the cooktop induction coil or the current of the inverter.
  • the decoding unit detects the power changes formed by the encoding unit by means of a phase difference measuring unit that monitors the phase difference between the current or voltage of the cooktop induction coil and the zero crossings of inverter voltage.
  • the communication between the induction heating cooktop and the appliance operated thereon is provided by an encoding unit disposed in the wireless appliance and a decoding unit disposed in the cooktop.
  • the use of high cost communication means like RFID tag, WIFI and receiving, transmitting antennas are not required.
  • the communication system (1) comprises an induction heating cooktop (2) (referred to as “cooktop” hereinafter) and a kitchen appliance (3) (referred to as “appliance” hereinafter) suitable for using on the cooktop (2).
  • the cooktop (2) comprises one or more than one induction coil (4), a control unit (5), for example a microprocessor, an inverter (6) that converts the AC mains voltage to DC voltage by switching and drives the induction coil (4).
  • a control unit (5) for example a microprocessor
  • an inverter (6) that converts the AC mains voltage to DC voltage by switching and drives the induction coil (4).
  • the appliance (3) comprises a user interface (7) having a display and a keypad that provide monitoring and controlling of the operating parameters like temperature, motor speed, one or more than one sensor (not shown in the figures), a microcontroller (8) in the memory of which the data relating to identification information and operating parameters of the appliance (3) are recorded and a voltage regulating circuitry (9) that supplies the microcontroller (8), the user interface (7) and the sensors with low value DC voltage by the power partially received from the induction coil (4).
  • a user interface (7) having a display and a keypad that provide monitoring and controlling of the operating parameters like temperature, motor speed, one or more than one sensor (not shown in the figures), a microcontroller (8) in the memory of which the data relating to identification information and operating parameters of the appliance (3) are recorded and a voltage regulating circuitry (9) that supplies the microcontroller (8), the user interface (7) and the sensors with low value DC voltage by the power partially received from the induction coil (4).
  • the communication system (1) of the present invention comprises a receiver coil (10) disposed in the appliance (3), that partially receives the power generated by the induction coil (4), an encoding unit (11) that changes the power received from the induction coil (4) by the receiver coil (10) by increasing/decreasing more than once depending on the appliance (3) identification information in the memory of the microcontroller (8) and the operating parameters entered by means of the user interface (7), and a decoding unit (12) disposed in the cooktop (2) which decodes the power change data received from the encoding unit (11) and delivers to the control unit (5), thereby provides the induction coil (4) to transfer power to the appliance (3) depending on the identification information detected by the control unit (5) and the operating parameters entered from the user interface (7).
  • the decoding unit (12) decodes the power change information received from the encoding unit (11) by changing into on/off signal chains.
  • the control unit (5) identifies the appliance (3) according to the characteristics of the on/off signal chains like the number of on/off signals, the period of each signal, detects the operating parameters entered from the user interface (7) and controls the operation of the induction coil (4) that delivers power to the appliance (3).
  • the power adjustment button on the cooktop (2) is brought to any adjustment position, for example the lowest level and power is transferred from the induction coil (4) to the appliance (3).
  • the microcontroller (8) that is energized by means of the voltage regulating circuitry (9) operates the encoding unit (11) in accordance with the appliance (3) identification information located in its memory and the operating parameters entered by means of the user interface (7).
  • the encoding unit (11) delivers power change data to the decoding unit (12) again through the induction coil (4) by increasing/decreasing the power received from the induction coil (4) by the receiver coil (10).
  • the decoding unit (12) decodes the power change data received from the encoding unit (11) and converts into on/off signal chains that the control unit (5) can evaluate.
  • the control unit (5) detects the identification information of the appliance (3) placed on the cooktop (2) and the operating parameters, for example temperature setting or motor speed, entered by means of the user interface (7) and provides the appliance (3) to be operated on the cooktop (2) at the desired power level.
  • the power adjustment button on the cooktop (2) is used for only the initial energizing of the appliance (3).
  • the appliance (3) controls the cooktop (2) depending on the operating parameters entered from the user interface (7).
  • a signal chain like "on/off/on/on/off/off” is generated in the decoding unit (12) and the control unit (5) detects that the appliance (3) is a kettle.
  • a signal chain of "off/on/on/on/on/on” is generated in the decoding unit (12) and the control unit (5) increases the power transferred from the induction coil (4).
  • the communication system (1) provides the identification information and the operating parameters of the appliance (3) to be recognized by the cooktop (2) without using communication means like RFID, WIFI.
  • the encoding unit (11) comprises one or more than one resistor (R1, R2) connected in parallel to the receiver coil (10) and one or more than one switching means (13) controlled by the microcontroller (8), connected in series to the resistors (R1, R2), and that provides the current received by the receiver coil (10) to be changed by actuating or deactuating the resistors (R1, R2).
  • the encoding unit (11) comprises one or more than one resonant capacitor (C1, C2) connected in parallel to the receiver coil (10) and one or more switching means (113) controlled by the microcontroller (8), connected in series to the resonant capacitors (C1, C2), and that provides the current and the voltage received by the receiver coil (10) to be changed by actuating or deactuating the resonant capacitors (C1, C2).
  • the communication system (1) comprises two receiver coils (10, 110) and the encoding unit (11) comprises a resistor (R3) and a switching means (213) controlled by the microcontroller (8), that provides the voltage received from the induction coil (4) to be changed by actuating or deactuating the first or the second receiver coil (10, 110).
  • the encoding unit (11) comprises a resistor (R3) and a switching means (213) controlled by the microcontroller (8), that provides the voltage received from the induction coil (4) to be changed by actuating or deactuating the first or the second receiver coil (10, 110).
  • the decoding unit (12) comprises a current measuring unit (14), for example a peak current detector, that provides the detection and decoding of the power changes formed by the encoding unit (11) by measuring the current of the induction coil (4) or the current of the inverter (6).
  • a current measuring unit (14) for example a peak current detector
  • the decoding unit (12) comprises a phase difference measuring unit (15) that provides the detection and decoding of the power changes formed by the encoding unit (11) by monitoring the phase difference (time) between the induction coil (4) current or voltage and the zero crossings (ZC) of the inverter (6) voltage.
  • the appliance (3) is an active heating appliance like the kettle, toaster having a resistant heater or an electromechanical appliance like mixer, chopper, mixer, blender, food processor that is operated with the electric motor.
  • the identification information and the operating parameters of the appliance (3) are delivered to the cooktop (2) by means of an encoding unit (11) disposed in the appliance (3) and a decoding unit (12) disposed in the cooktop (2), and data transfer is provided without requiring the high cost and hard to use communication means like RFID, WIFI on the appliance (3) and the cooktop (2).

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (7)

  1. Ein Kommunikationssystem (1) bestehend aus
    - einer Herdplatte (2) mit einer oder mehreren Induktionsspule (4), einem Umformer (6), der die Induktionsspule (4) antreibt und einer Kontrolleinheit (5), und
    - einer Vorrichtung (3), geeignet für kabelfrei operiert zu werden auf der Herdplatte (2), mit einer Benutzeroberfläche (7), die die Überwachung und Kontrolle der Betriebsparameter sicherstellt, und einem Mikrokontroller (8), der die Identifikationsinformation und Betriebsparameter beinhaltet, diein seinen Speicher eingetragen sind,
    - einer Empfangsspule (10) angeordnet zur Vorrichtung (3), die teilweise den Strom erhält, der von der Induktionsspule (4) erzeugt ist,
    dadurch gekennzeichnet, daß
    - eineKodierungseinheit (11) angeordnet zur Vorrichtung (3), die den Strom verändert, der von Induktionsspule (4) genommen wird durch die Empfangsspule (10) mit Erhöhung/Erniedrigung und
    - eine Dekodierungseinheit (12) angeordnet in der Herdplatte (2), die das Data für Stromänderung erhalten von der Kodierungseinheit (11) durch Induktionsspule (4) dekodiert und das dekodierte Data zur Kontrolleinheit (5) überträgt.
  2. Ein Kommunikationssystem (1) nach Anspruch 1, dadurch gekennzeichnet, daß die Dekodierungseinheit (12) Stromänderungsinformation dekodiert, die von Kodierungseinheit (11) erhalten wird, durch Umformung in aufeinanderfolgende on/off Signalketten.
  3. EinKommunikationssystem (1) nach Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Kodierungseinheit (11) bestehend aus einem oder mehreren Widerstände (R1, R2) verbunden in parallel zur Empfangsspule (10) und einer oder mehreren Schaltungsmöglichkeiten (13) verbunden in Serienzu den Widerständen (R1, R2), und sicherstellt, daß der Strom, der von Empfangsspule (10) erhalten wird, sich ändert durch den Antrieb oder die Abschaltung der Widerstände (R1, R2).
  4. EinKommunikationssystem (1) nach Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Kodierungseinheit (11) bestehend aus einem oder mehreren Resonanzkondensatoren (C1, C2) verbunden in parallel zur Empfangsspule (10) und einer oder mehreren Schaltungsmöglichkeiten (113) verbunden in Serienzu den Resonanzkondensatoren (C1, C2), und sicherstellt, daß der Strom und die Spannung, die von Empfangsspule (10) erhalten werden, sich ändern durch den Antrieb oder die Abschaltung der Resonanzkondensatoren (C1, C2).
  5. EinKommunikationssystem (1) nach Ansprüche 1 oder 2, dadurch gekennzeichnet, daß zwei Empfangsspulen (10, 110) und die Kodierungseinheit (11) bestehend aus einer Schaltungsmöglichkeit (213) kontrolliert vom Mikrokontroller (8), und sicherstellt, daß die Spannung, die von Induktionsspule (4) erhalten wird, sich ändert durch den Antrieb oder die Abschaltung der ersten oder zweiten Empfangsspule (10, 110).
  6. Ein Kommunikationssystem (1) nach den vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Dekodierungseinheit (12) bestehend aus einer Strommesseinheit (14), und sicherstellt, daß Spannungsänderungen erkannt werden, die von Kodierungseinheit (11) gebildet sind, durch Bemessung von Strom der Induktionsspule (4) oder von Strom des Umformers (6).
  7. EinKommunikationssystem (1) nach den vorhergehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Dekodierungseinheit (12) bestehend aus einer Phasendifferenzbemessungseinheit (15), und sicherstellt, daß Spannungsänderungen erkannt werden, die von Kodierungseinheit (11) gebildet sind, durch Überwachung von Phasendifferenz zwischen Strom oder Spannung der Induktionsspule (4) und Nulldurchgänge (ZC) des Umformers (6).
EP12812998.8A 2011-12-30 2012-12-21 Kommunikationssystem für ein induktionserwärmungskochfeld Revoked EP2798911B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12812998T PL2798911T3 (pl) 2011-12-30 2012-12-21 Układ komunikacyjny indukcyjnej płyty kuchennej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201113315 2011-12-30
PCT/EP2012/076664 WO2013098240A1 (en) 2011-12-30 2012-12-21 Induction heating cooktop communication system

Publications (2)

Publication Number Publication Date
EP2798911A1 EP2798911A1 (de) 2014-11-05
EP2798911B1 true EP2798911B1 (de) 2017-12-13

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ID=47522588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12812998.8A Revoked EP2798911B1 (de) 2011-12-30 2012-12-21 Kommunikationssystem für ein induktionserwärmungskochfeld

Country Status (5)

Country Link
EP (1) EP2798911B1 (de)
CN (1) CN104919894B (de)
PL (1) PL2798911T3 (de)
TR (1) TR201718728T4 (de)
WO (1) WO2013098240A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022223286A1 (de) * 2021-04-19 2022-10-27 BSH Hausgeräte GmbH Induktionsenergieübertragungssystem
WO2022233660A1 (de) * 2021-05-03 2022-11-10 BSH Hausgeräte GmbH Induktionsenergieübertragungssystem

Families Citing this family (10)

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WO2015028076A1 (en) * 2013-08-29 2015-03-05 Arcelik Anonim Sirketi Induction cooking appliance, wireless kitchen appliance and wireless communication system
FR3015210B1 (fr) * 2013-12-20 2016-01-01 Seb Sa Article culinaire inductif communicant et procede d'appairage d'un tel article
EP3107176B1 (de) 2015-06-18 2018-04-04 STMicroelectronics (Grand Ouest) SAS Verfahren zur verwaltung eines kontaktlosen energietransfers von einem sender zu einem empfänger, und entsprechender sender
CN106604432A (zh) * 2015-10-20 2017-04-26 奇想生活股份有限公司 接收无线电磁能量的食品加热处理装置
ES2729728A1 (es) * 2018-05-04 2019-11-05 Bsh Electrodomesticos Espana Sa Sistema de transmisión de energía por inducción
DE102018212680A1 (de) 2018-07-30 2020-01-30 E.G.O. Elektro-Gerätebau GmbH Verfahren und Vorrichtung zur induktiven Energieübertragung
DE102019104003A1 (de) * 2019-02-18 2020-08-20 Miele & Cie. Kg Verfahren zur automatischen Zuordnung eines Aufstellgeräts zu einer Kochstelle eines induktiven Kochfelds, Aufstellgerät und System zur Durchführung des Verfahrens
DE102020104130A1 (de) * 2020-02-18 2021-08-19 Miele & Cie. Kg Kochsystem und Verfahren zum Betreiben
EP3914042A1 (de) * 2020-05-20 2021-11-24 Infineon Technologies Austria AG Kochvorrichtung, kochgeschirr und zugehörige verfahren
WO2023240309A1 (en) * 2022-06-14 2023-12-21 Breville Pty Limited System and method of powering and communicating with accessories

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JP3198628B2 (ja) * 1992-07-07 2001-08-13 松下電器産業株式会社 コードレス機器
WO1999041950A2 (en) 1998-02-10 1999-08-19 Aktiebolaget Electrolux A control system for use with induction heating cooktops
US20040016348A1 (en) * 2002-07-24 2004-01-29 Richard Sharpe Electronic cooking pan systems and methods
US7355150B2 (en) * 2006-03-23 2008-04-08 Access Business Group International Llc Food preparation system with inductive power
JP2012514495A (ja) 2009-01-06 2012-06-28 アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー スマート調理器具
FR2945608A1 (fr) * 2009-05-15 2010-11-19 Univ Angers Procede et systeme de controle de la temperature d'une cuisson.
CN101924396B (zh) * 2009-06-16 2014-02-05 上海科勒电子科技有限公司 用于洁具上的无线充/供电系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022223286A1 (de) * 2021-04-19 2022-10-27 BSH Hausgeräte GmbH Induktionsenergieübertragungssystem
WO2022233660A1 (de) * 2021-05-03 2022-11-10 BSH Hausgeräte GmbH Induktionsenergieübertragungssystem

Also Published As

Publication number Publication date
TR201718728T4 (tr) 2018-03-21
EP2798911A1 (de) 2014-11-05
PL2798911T3 (pl) 2018-05-30
CN104919894A (zh) 2015-09-16
WO2013098240A1 (en) 2013-07-04
CN104919894B (zh) 2017-08-29

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