EP1361780A1 - Induktionskochmodul und Steuerungsverfahren des Moduls - Google Patents

Induktionskochmodul und Steuerungsverfahren des Moduls Download PDF

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Publication number
EP1361780A1
EP1361780A1 EP03291077A EP03291077A EP1361780A1 EP 1361780 A1 EP1361780 A1 EP 1361780A1 EP 03291077 A EP03291077 A EP 03291077A EP 03291077 A EP03291077 A EP 03291077A EP 1361780 A1 EP1361780 A1 EP 1361780A1
Authority
EP
European Patent Office
Prior art keywords
cooking module
arms
ind1
phase
module according
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.)
Granted
Application number
EP03291077A
Other languages
English (en)
French (fr)
Other versions
EP1361780B1 (de
Inventor
Didier Montloup
François Forest
Jean-Yves Gaspard
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.)
Agtech
Elka
Original Assignee
Agtech
Elka
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
Priority claimed from FR0205698A external-priority patent/FR2839604A1/fr
Application filed by Agtech, Elka filed Critical Agtech
Publication of EP1361780A1 publication Critical patent/EP1361780A1/de
Application granted granted Critical
Publication of EP1361780B1 publication Critical patent/EP1361780B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • 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
    • H05B6/04—Sources of current

Definitions

  • the present invention relates to an electric cooking module induction comprising two inductors each supplied by a generator (inverter) receiving the rectified voltage from the electrical network.
  • the invention also relates to a control method of such a module.
  • Induction cooking systems with multiple hearths (2 or 4) present on the mainstream market use, for the most part, the architecture of FIG. 1A.
  • the elementary module consists of two inductors I1, I2 and two generators G1, G2, each of these generators supplying one inductor and only one.
  • the electronic generator undeniably the more suitable for the application is the G resonance inverter of Figure 1B.
  • Resonance is introduced by associating with the inductor, naturally inductive, capacitors, C1 and C2, conventionally a few hundreds of nF, to achieve an operating frequency nominal around twenty kHz, with current inductor technologies say "pancake". Adjusting the power supplied to the inductor operates by varying the inverter control frequency.
  • Figure 2 shows in the top line the applied voltage to generator G1 and in the bottom line the voltage applied to the generator G2.
  • the present invention aims to develop a module electric induction cooking of the corresponding type above, allowing to make better use of electronics and above all to be able to have at choice of one or the other of the two homes in the case of a two-person module fireplaces, the maximum power available.
  • the mounting of the cooking module according to the invention is perfectly symmetrical for a double reason first at the level of each home and between the two homes. This allows on the one hand to realize circuits completely identical and interchangeable and on the other hand it reduces the power of the two electronic switches associated with each arm UPS. On an industrial level this translates into a considerable saving both in terms of the cost of components and for manufacturing and storage. Despite this, any fireplace can operate at maximum power.
  • the two arms of the same generator are controlled in phase or in opposition phase.
  • the means of switching is provided with a passage resistor.
  • each electronic switch is equipped with an anti-parallel diode and a switching aid capacitor.
  • the switching means are controlled in the same way, the two windings associated with their resonance capacitor of a hearth each being connected directly to one of the two supply terminals and the two windings associated with their resonance capacitor of the other focal point being connected in series between both arms (bridge condition).
  • the two arms of the same generator are controlled at the same frequency in phase or in phase opposition.
  • the power adjustment of the hearth in the direct state is effected by adjusting the frequency of cutting and the adjustment of the hearth in the bridge state is carried out by the adjustment respective durations of orders in phase or in opposition to phase.
  • the totally inactive state of a fireplace is achieved by placing it in the bridge state and keeping the control permanently in phase.
  • the inductors of a household can be made up of 2n windings.
  • the inductor (I1, I2) of the cooking module is divided into two independent windings, one of which IND1 is shown.
  • This IND1 winding is connected by a terminal to the electronic switches T1 and T2 of one of the two arms which receive the control signals S1 and S2.
  • These electronic switches have a capacitor in parallel and an unreferenced diode.
  • the other winding terminal is connected in series with the resonance capacitor C1.
  • the assembly Downstream of capacitor C1, the assembly includes a switch RL1 which, in position P1 directly connects the assembly consisting of the IND1 winding and the resonance capacitor C1 at one of the supply terminals; in position P2 it connects this same set at the peer P2 output of the switch on the other winding associated with the same household. It is then a bridge installation and the operation of this assembly depends on the difference of the voltages delivered by each of the two arms of the generator.
  • each inductor (Ii) is formed by two independent windings (INDi, INDi ') and each generator is formed by two arms (Bi, Bi + 1).
  • the Bi arms are each formed by two switches electronics (T1i, T2i) connected in series between the two terminals supply (L1, L2) of the network and the junction point (Ai) of the two switches electronics is a connection point connected to a winding (IND1) and (IND2) (respectively IND1 'and IND2') of each of the two inductors (I1, I2).
  • the switching means (R1i) of the two inductors (I1, I2) are coupled so as not to take the same state at the same time time.
  • Figure 4 shows the first case of direct connection of the IND1 winding which can then receive all the available power.
  • Figure 5 shows the case of the bridge connection of two inverter arms B1 and B2, associated with the two windings IND1, IND1 'of the same inductor I1 and their resonance capacitor.
  • the timing diagram of figure 6 represents the order voltages VA, VB either in phase or in phase opposition which relates mainly to the operation of the bridge-mounted inductor.
  • VA the voltages of the assembly
  • VB the difference in these two voltages applied to the set is zero and that it is crossed by no current.
  • the windings IND1, IND1 'then do not provide any energy to the container
  • the difference of the two voltages applied to the assembly is an alternating voltage to the frequency of the control signal S (typically 10 kHz) and the windings IND1 and IND1 'can provide energy to the container
  • the principle described above can be generalized to the division the inductor of a hearth in 2n independent windings.
  • the command then makes it possible to obtain the different operating modes desired.
  • the master inductor-generator assembly is the one on which the user requests the highest power. It is placed in the configuration where both parts are powered independently (inductor 1 in Figure 7).
  • the control of the two arms is then carried out as follows : the frequency of the control signals Si is the same (command synchronous) for both arms and it is adjusted according to the power desired on the master inductor. However, both arms can be ordered either in phase or out of phase (Figure 6), to scale switching frequency ( ⁇ 20kHz).
  • the power supplied to the inductor master is independent of the mode in phase or in opposition of phase, each winding being supplied independently by an arm (voltages VA and VB).
  • phase mode In the case of the slave inductor, its two coils in series with the resonance capacitors are supplied by the bridge consisting of the two arms, therefore by the voltage VA - VB. In opposition to phase, this voltage will be a niche of amplitude equal to the voltage continuous supply of arms and frequency equal to the imposed frequency by the master. In phase, the voltage VA - VB will be zero. It is enough then to alternate, over a few periods of the alternative network, the phase mode and the mode in opposite phase to adjust the power on the inductor slave. Ultimately, if we want to completely stop the latter, we maintain permanently in phase mode.
  • the power on the master inductor is adjusted by the switching frequency of the inverter arms, the power on the slave inductor by choosing the number of network periods over which mode in phase opposition is authorized.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inverter Devices (AREA)
  • Cookers (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Induction Heating Cooking Devices (AREA)
EP03291077A 2002-05-07 2003-05-05 Induktionskochmodul und Steuerungsverfahren des Moduls Expired - Lifetime EP1361780B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0205698A FR2839604A1 (fr) 2002-05-07 2002-05-07 Module de cuisson electrique a induction et procede de commande du module
FR0205698 2002-05-07
FR0305408A FR2839605B1 (fr) 2002-05-07 2003-05-02 Module de cuisson electrique a induction et procede de commande du module
FR0305408 2003-05-02

Publications (2)

Publication Number Publication Date
EP1361780A1 true EP1361780A1 (de) 2003-11-12
EP1361780B1 EP1361780B1 (de) 2006-01-25

Family

ID=29252394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291077A Expired - Lifetime EP1361780B1 (de) 2002-05-07 2003-05-05 Induktionskochmodul und Steuerungsverfahren des Moduls

Country Status (5)

Country Link
EP (1) EP1361780B1 (de)
AT (1) ATE316749T1 (de)
DE (1) DE60303350T2 (de)
ES (1) ES2257649T3 (de)
FR (1) FR2839605B1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005081585A1 (de) * 2004-02-25 2005-09-01 Newfrey Llc Verfahren und vorrichtung zum erzeugen eines elektrischen heizstroms, insbesondere zum induktiven erwärmen eines werkstücks
EP2068598A1 (de) * 2007-12-03 2009-06-10 Samsung Electronics Co., Ltd. Induktionsherd und Steuerverfahren dafür
WO2011080642A1 (de) * 2009-12-28 2011-07-07 BSH Bosch und Siemens Hausgeräte GmbH Gargerätevorrichtung
WO2011113660A1 (de) * 2010-03-16 2011-09-22 BSH Bosch und Siemens Hausgeräte GmbH Kochmuldenvorrichtung
WO2012001603A1 (de) * 2010-06-28 2012-01-05 BSH Bosch und Siemens Hausgeräte GmbH Kochmuldenvorrichtung
WO2012131526A1 (de) * 2011-03-30 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Induktionsheizvorrichtung
EP2704524A1 (de) * 2012-08-28 2014-03-05 AEG Power Solutions GmbH Vorrichtung zum Erwärmen mittels elektromagnetischer Induktion, insbesondere Induktionsheizung oder Induktionsofen
US9113502B2 (en) 2008-12-19 2015-08-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Cook-top having at least three heating zones
WO2018116056A1 (de) * 2016-12-23 2018-06-28 BSH Hausgeräte GmbH Gargerätevorrichtung
EP1951003B2 (de) † 2007-01-23 2022-11-16 Whirlpool Corporation Verfahren zur Regelung eines Induktionskochfeldes und zur Ausführung dieses Verfahrens adaptiertes Induktionskochfeld

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2602489T5 (es) 2011-03-29 2024-04-30 Bsh Hausgeraete Gmbh Dispositivo de conmutación

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749836A (en) * 1985-11-27 1988-06-07 Kabushiki Kaisha Toshiba Electromagnetic induction cooking apparatus capable of providing a substantially constant input power
DE19708335A1 (de) * 1996-03-07 1997-10-30 Thomann Electronics Ag Heizleistungsregulierung für Induktionskochherd
GB2348750A (en) * 1999-04-09 2000-10-11 Jaeger Regulation Induction cooking hob

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749836A (en) * 1985-11-27 1988-06-07 Kabushiki Kaisha Toshiba Electromagnetic induction cooking apparatus capable of providing a substantially constant input power
DE19708335A1 (de) * 1996-03-07 1997-10-30 Thomann Electronics Ag Heizleistungsregulierung für Induktionskochherd
GB2348750A (en) * 1999-04-09 2000-10-11 Jaeger Regulation Induction cooking hob

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004010331B4 (de) * 2004-02-25 2014-03-20 Newfrey Llc Verfahren und Vorrichtung zum Erzeugen eines elektrischen Heizstroms, insbesondere zum induktiven Erwärmen eines Werkstücks
US7375986B2 (en) 2004-02-25 2008-05-20 Newfrey Llc Method and device for producing an electric heating current, particularly for inductive heating of a workpiece
USRE41796E1 (en) 2004-02-25 2010-10-05 Newfrey Llc Method and device for producing an electric heating current, particularly for inductive heating of a workpiece
WO2005081585A1 (de) * 2004-02-25 2005-09-01 Newfrey Llc Verfahren und vorrichtung zum erzeugen eines elektrischen heizstroms, insbesondere zum induktiven erwärmen eines werkstücks
EP1951003B2 (de) † 2007-01-23 2022-11-16 Whirlpool Corporation Verfahren zur Regelung eines Induktionskochfeldes und zur Ausführung dieses Verfahrens adaptiertes Induktionskochfeld
EP2068598A1 (de) * 2007-12-03 2009-06-10 Samsung Electronics Co., Ltd. Induktionsherd und Steuerverfahren dafür
US9113502B2 (en) 2008-12-19 2015-08-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Cook-top having at least three heating zones
WO2011080642A1 (de) * 2009-12-28 2011-07-07 BSH Bosch und Siemens Hausgeräte GmbH Gargerätevorrichtung
ES2384919A1 (es) * 2009-12-28 2012-07-16 BSH Electrodomésticos España S.A. Dispositivo de aparato de cocción.
WO2011113660A1 (de) * 2010-03-16 2011-09-22 BSH Bosch und Siemens Hausgeräte GmbH Kochmuldenvorrichtung
WO2012001603A1 (de) * 2010-06-28 2012-01-05 BSH Bosch und Siemens Hausgeräte GmbH Kochmuldenvorrichtung
WO2012131526A1 (de) * 2011-03-30 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Induktionsheizvorrichtung
EP2704524A1 (de) * 2012-08-28 2014-03-05 AEG Power Solutions GmbH Vorrichtung zum Erwärmen mittels elektromagnetischer Induktion, insbesondere Induktionsheizung oder Induktionsofen
WO2018116056A1 (de) * 2016-12-23 2018-06-28 BSH Hausgeräte GmbH Gargerätevorrichtung
US11856656B2 (en) 2016-12-23 2023-12-26 BSH Hausgeräte GmbH Cooking appliance

Also Published As

Publication number Publication date
DE60303350D1 (de) 2006-04-13
FR2839605B1 (fr) 2004-09-10
EP1361780B1 (de) 2006-01-25
FR2839605A1 (fr) 2003-11-14
ES2257649T3 (es) 2006-08-01
ATE316749T1 (de) 2006-02-15
DE60303350T2 (de) 2006-09-07

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