EP3967107A1 - Ensemble appareil de cuisson - Google Patents

Ensemble appareil de cuisson

Info

Publication number
EP3967107A1
EP3967107A1 EP20723158.0A EP20723158A EP3967107A1 EP 3967107 A1 EP3967107 A1 EP 3967107A1 EP 20723158 A EP20723158 A EP 20723158A EP 3967107 A1 EP3967107 A1 EP 3967107A1
Authority
EP
European Patent Office
Prior art keywords
heating
target
induction
control
regulating unit
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
EP20723158.0A
Other languages
German (de)
English (en)
Inventor
Tomas Cabeza Gozalo
Alberto Dominguez Vicente
Sergio Llorente Gil
Jesus Manuel Moya Nogues
Antonio Muñoz Fumanal
Ramon Peinado Adiego
Jorge VILLA LOPEZ
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3967107A1 publication Critical patent/EP3967107A1/fr
Pending legal-status Critical Current

Links

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
    • H05B2213/05—Heating plates with pan detection means

Definitions

  • each induction target has its own maximum frequency with which it can be operated.
  • the maximum frequency of an induction target depends on the design, the components and other technical limitations.
  • the maximum frequency of an induction target can be 75 kHz or 100 kHz.
  • An induction target operated at its maximum frequency generates a minimum possible heating output, in particular output heating output, in particular during its switch-on time, in particular during its switch-on intervals.
  • An “output heating power” of an induction target is to be understood as meaning, in particular, electrical power that the inductor of the at least one induction target provides for heating to a cookware of the at least one induction target in at least one time interval, in particular at least one switch-on interval, of the operating period of the continuous heating operating state.
  • a “power excess” of an induction target is to be understood in particular as a power whose mean value, based on a time interval of the operating period, exceeds the average power, in particular the target heating power, of the induction target within an operating period of the continuous heating operating state.
  • the control and / or regulating unit is provided to achieve the excess power by applying an electromagnetic alternating field with a heating current frequency different from a target frequency.
  • the output heating power can correspond, for example, to a minimum heating power PMIN of an induction target when the control and / or regulating unit operates the respective induction target at its maximum frequency (fwi A x).
  • the control and / or regulating unit is provided in particular to determine the target frequency for the induction target, in particular from a target heating output set by the operator.
  • control and / or regulating unit is provided to operate at least one further induction target during the operating period, in particular continuously, in the continuous heating operating state.
  • the control and / or regulating unit is preferably provided to operate the further induction target in at least one switch-on interval of at least one operating period with a heating current frequency in order to achieve a heating output, in particular a target heating output.
  • a cooking environment can advantageously be created which ensures a particularly advantageous average heating output, in particular a set target heating output, in at least two cooking vessels.
  • a cooking environment can be created which can advantageously maintain the setpoint heating power desired and set by an operator in at least two cooking vessels, advantageously precisely over advantageously long periods of time.
  • the invention is also based on a method for operating a cooking device device, in particular an induction hob device, wherein in at least one periodic permanent heating operating state, to which at least one operating period is assigned, at least one induction target is controlled repetitively with a heating current frequency and supplied with energy and the induction target in at least one switch-on interval of the operating period is operated with a heating power, in particular a target heating power or a power excess compared to a target heating power.
  • a sum of all switch-on intervals of the operating period is selected as a multiple of a reciprocal value of the heating current frequency.
  • the cooking appliance 20 has a mounting plate 16.
  • the mounting plate 16 is provided for setting up cooking utensils 14, 14 ', 14 ”.
  • the mounting plate 16 is designed as a hob plate.
  • the cooking appliance 20 has four classic cooking zones 18.
  • a cookware 14, 14 ', 14' ' is arranged on three of the four cooking zones 18.
  • the cooking appliance device 10 has one electromechanical switch element 60 for each induction target 32, 32 ", 32", 32 "".
  • the switch element 60 is designed as a relay 62.
  • the induction targets 32, 32 “, 32", 32 “” can be connected to the electrical energy supply through the relay 62.
  • the cooking appliance device 10 has one resonance capacitor unit 44 per induction target 32, 32 ", 32", 32 "”.
  • Each induction target 32, 32 “, 32", 32 "” can be individually controlled with a respective heating current frequency 36.
  • FIG. 3b shows the case that the maximum frequency is lower than the determined target frequency for the induction target 32, 32 ', 32 ", 32"'. If the maximum frequency is smaller than he karte target frequency, the control and / or regulating unit 26 operates in the Treasureroisbe operating state 50 in the switch-on interval 40, t on an operating period 42, the induction target 32, 32 ', 32 ", 32"' with its maximum frequency.
  • the control and / or regulating unit 26 operates the three induction targets 32, 32 ', 32 "whose target frequencies differ by less than 16 kHz, in particular less than 20 kHz, with the same heating current frequency 36,
  • the heating current frequency 36 corresponds in particular to the lowest target frequency of all, in particular the three, induction targets 32, 32 ′, 32 ′′ that are controlled together.
  • the control and / or regulating unit 26 controls all induction targets 32, 32 ', 32' with the same heating current frequency 36, in this example 55 kHz, in particular to avoid intermodulation interference signals.
  • each induction target 32, 32 ", 32", 32 “” in the permanent heating operating state 50 must and / or is controlled with a different heating current frequency 36.
  • the control and / or regulating unit 26 is intended to operate at least one inverter 64 per induction target 32, 32 ", 32", 32 “” in the continuous heating operating state 50.
  • control and / or regulating unit 26 determines the target frequencies for each of the three induction targets 32, 32 ', 32' to be controlled.
  • the operating period 42 as an integer divisor of half the period of the AC supply voltage 48, THNETZ, a maximum power requirement of over 4.25 kW, preferably over 3.7 kW, can be achieved over a time limit of half the period of the alternating supply voltage 48, THNETZ can be avoided.
  • the switch-off intervals 36 by the control and / or regulating unit 26 for at least one induction target 32, 32 ', 32 ", 32'" are designed to be distributed over half the period of the AC supply voltage 48, in particular over the operating period 42, a maximum power requirement at the beginning or at the end of half of a period of the AC supply voltage 48 of more than 4.25 kW, preferably of more than 3.7 kW or the equivalent of 16 A rms , is avoided.
  • a heating current frequency 36 selected for an induction target 32, 32 ', 32 ", 32"” is lower than the target frequency determined for the respective induction target 32, 32', 32", 32 "', the at least one control state 56 for the A switch-on interval 40 is selected for the respective induction target 32, 32 ′, 32 ”, 32” ', which is shorter than the operating period 42.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

L'invention concerne un ensemble appareil de cuisson, en particulier un dispositif pour plaque à induction, comportant une unité de commande et/ou de régulation (26), laquelle est destinée à activer de manière répétitive avec une fréquence de courant de chauffage (36), dans au moins un état de fonctionnement en mode chauffage continu (50) auquel est associée une période de fonctionnement (42), au moins une cible d'induction (3, 32', 32'', 32''') et de l'alimenter en énergie et de faire fonctionner la cible d'induction (32, 32', 32'', 32''') dans au moins un intervalle de mise en marche (40. 40') de la période de fonctionnement (42), avec une puissance de chauffage, en particulier une puissance de chauffage de consigne (30, 30', 30'') ou un excès de puissance par rapport à une puissance de chauffage de consigne (30, 30', 30''). L'invention vise à améliorer des propriétés en termes d'activation. A cet effet, l'unité de commande et/ou de régulation (26) est conçue de sorte à sélectionner, dans l'état de fonctionnement à chauffage continu (50), une somme de tous les intervalles de mise en marche (40, 40') de la période de fonctionnement (42) comme un multiple d'une valeur réciproque de la fréquence de courant de chauffage (36).
EP20723158.0A 2019-05-10 2020-05-08 Ensemble appareil de cuisson Pending EP3967107A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19382362 2019-05-10
PCT/EP2020/062833 WO2020229335A1 (fr) 2019-05-10 2020-05-08 Ensemble appareil de cuisson

Publications (1)

Publication Number Publication Date
EP3967107A1 true EP3967107A1 (fr) 2022-03-16

Family

ID=66542174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20723158.0A Pending EP3967107A1 (fr) 2019-05-10 2020-05-08 Ensemble appareil de cuisson

Country Status (3)

Country Link
US (1) US20220191976A1 (fr)
EP (1) EP3967107A1 (fr)
WO (1) WO2020229335A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2338057T5 (es) 2007-01-23 2023-03-09 Whirlpool Co Método de control para una placa de cocina de inducción y placa de cocina de inducción adaptada para llevar a cabo dicho método
JP2009295392A (ja) * 2008-06-04 2009-12-17 Toshiba Home Technology Corp 電磁誘導加熱装置
EP2306784A1 (fr) 2009-10-05 2011-04-06 Whirlpool Corporation Procédé de fourniture de puissance à des zones de cuisson par induction d'une plaque de cuisson par induction dotée d'une pluralité de convertisseurs de puissance, et plaque de cuisson par induction utilisant ledit procédé
ES2573144B1 (es) * 2014-12-03 2017-03-16 Bsh Electrodomésticos España, S.A. Dispositivo de campo de cocción por inducción con una o varias capacidades resonantes

Also Published As

Publication number Publication date
US20220191976A1 (en) 2022-06-16
WO2020229335A1 (fr) 2020-11-19

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