EP1361780A1 - Module de cuisson électrique à induction et procédé de commande du module - Google Patents
Module de cuisson électrique à induction et procédé de commande du module Download PDFInfo
- 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
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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.
Abstract
Description
- la première consiste à découpler électriquement les deux générateurs (onduleurs) à l'aide de filtres passifs (inductances et condensateurs),
- la seconde est une option de commande qui conduit à faire fonctionner en alternance les deux générateurs à des fréquences de quelques Hz (figure 2) en synchronisme avec la tension secteur redressée qui alimente classiquement les générateurs. Il existe donc deux fréquences dans le système, la fréquence de fonctionnement propre des onduleurs (>20kHz) et la fréquence à laquelle on autorise cycliquement ce fonctionnement.
- chaque inducteur est formé de deux bobinages indépendants,
- chaque générateur est formé de deux bras,
- formés chacun de deux interrupteurs électroniques montés en série entre les deux bornes d'alimentation du réseau et le point de jonction des deux interrupteurs électroniques est un point de branchement relié à un bobinage de chacun des deux inducteurs,
- à chaque bobinage est associé un condensateur de résonance placé en série formant un ensemble dont
- l'une des deux bornes est connectée à l'un des bras et
- l'autre borne est connectée à un moyen de commutation pour être reliée directement à l'une des bornes de l'alimentation (état direct) ou à la borne homologue de l'autre ensemble du même inducteur (état pont),
- les moyens de commutation des deux inducteurs sont couplés pour ne pas prendre le même état en même temps.
- La figure 1A est un schéma d'un module de cuisson par induction à deux foyers selon l'art antérieur,
- la figure 1B est un schéma d'un générateur élémentaire associé à l'un des inducteurs des foyers de la figure 1,
- la figure 2 est un diagramme montrant l'alternance de la commande des deux générateurs du module de cuisson de la figure 1 selon l'art antérieur,
- la figure 3 montre le schéma d'un bras d'onduleur associé à un inducteur,
- la figure 4 montre l'état de branchement direct d'un bobinage et de son condensateur de résonance,
- la figure 5 montre l'état de branchement en pont de deux bobinages d'un même inducteur et de leur condensateur de résonance,
- la figure 6 représente la commande des bras en phase et en opposition de phase,
- la figure 7 est un schéma d'un module de cuisson à deux foyers selon un exemple de réalisation de l'invention,
- la figure 8 représente l'une des configurations du schéma de réalisation de la figure 7 dans laquelle l'inducteur I1 est dans l'état direct et l'inducteur I2 est dans l'état pont.
- l'une des deux bornes est connectée à l'un des bras (Bi) et
- l'autre borne est connectée à un moyen de commutation (R1i) pour être reliée directement à l'une des bornes de l'alimentation (état direct) ou à la borne homologue de l'autre ensemble du même inducteur (état pont).
- RL1, RL1' en position (P1), RL2, RL2' en position (P2) : chaque bobinage de l'inducteur 1 est alimenté indépendamment par chacun des bras à travers les condensateurs de résonance C1 et C1', tandis que les deux bobinages de l'inducteur 2, en série avec C2 et C2', sont alimentés simultanément par la structure en pont constituée des deux bras. La figure 8 fait apparaítre plus précisément cette première configuration.
- RL2, RL2' en position (P1), RL1, RL1' en position (P2) : inversement, chaque bobinage de l'inducteur 2 est maintenant alimenté indépendamment par chacun des bras à travers les condensateurs de résonance C2 et C2', tandis que les deux bobinages de l'inducteur 1, en série avec C1 et C1' sont alimentés simultanément par la structure en pont constituée des deux bras.
- l'électronique (constituée des deux bras) est globalement dimensionnée pour la puissance totale susceptible d'être fournie aux deux inducteurs simultanément, soit 3,7kW,
- il existe une seule fréquence de commande du système, ce qui élimine tout risque de battement de fréquence.
Claims (8)
- Module de cuisson électrique à induction comprenant deux inducteurs alimentés chacun par un générateur (onduleur) recevant la tension redressée du réseau électrique,
caractérisé en ce quechaque inducteur (I1, I2) est formé de deux bobinages indépendants (IND1, IND1') et (IND2, IND2'),chaque générateur est formé de deux bras (B1, B2),formés chacun de deux interrupteurs électroniques (T1i, T2i) montés en série entre les deux bornes d'alimentation (L1, L2) du réseau et le point de jonction (Ai) des deux interrupteurs électroniques est un point de branchement relié à un bobinage (IND1) et (IND2) (respectivement IND1' et IND2') de chacun des deux inducteurs (I1, I2),à chaque bobinage (INDi) est associé un condensateur de résonance (Ci) placé en série formant un ensemble dontl'une des deux bornes est connectée à l'un des bras (Bi) etl'autre borne est connectée à un moyen de commutation (R1i) pour être reliée directement à l'une des bornes de l'alimentation (état direct) ou à la borne homologue de l'autre ensemble du même inducteur (état pont),les moyens de commutation (R1i) des deux inducteurs (I1, I2) sont couplés pour ne pas prendre le même état en même temps. - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
le moyen de commutation (R1i) est muni d'une résistance de passage. - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
chaque interrupteur électronique (T1i, T2i) est muni d'une diode anti-parallèle et d'un condensateur d'aide à la commutation. - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
les moyens de commutation (RL1, RL1' respectivement RL2, RL2') sont commandés de la même manière, les deux bobinages associés à leur condensateur de résonance d'un foyer étant chacun relié directement à l'une des deux bornes de l'alimentation et les deux bobinages associés à leur condensateur de résonance de l'autre foyer étant montés en série entre les deux bras (état pont). - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
les deux bras (Bi) d'un même générateur sont commandés à la même fréquence en phase ou en opposition de phase. - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
le réglage de la puissance du foyer dans l'état direct est effectué par le réglage de la fréquence de découpage et le réglage du foyer dans l'état pont est effectué par le réglage des durées respectives des commandes en phase ou en opposition de phase. - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
l'état totalement inactif d'un foyer, l'autre étant en fonctionnement, est réalisé en le plaçant dans l'état pont et en maintenant en permanence la commande en phase. - Module de cuisson électrique selon la revendication 1,
caractérisé en ce que
les inducteurs du foyer sont constitués par 2n bobinages.
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 | ||
FR0305408 | 2003-05-02 | ||
FR0305408A FR2839605B1 (fr) | 2002-05-07 | 2003-05-02 | Module de cuisson electrique a induction et procede de commande du module |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1361780A1 true EP1361780A1 (fr) | 2003-11-12 |
EP1361780B1 EP1361780B1 (fr) | 2006-01-25 |
Family
ID=29252394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03291077A Expired - Lifetime EP1361780B1 (fr) | 2002-05-07 | 2003-05-05 | Module de cuisson électrique à induction et procédé de commande du module |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1361780B1 (fr) |
AT (1) | ATE316749T1 (fr) |
DE (1) | DE60303350T2 (fr) |
ES (1) | ES2257649T3 (fr) |
FR (1) | FR2839605B1 (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005081585A1 (fr) * | 2004-02-25 | 2005-09-01 | Newfrey Llc | Procede et dispositif pour produire un courant electrique de chauffage destine notamment au chauffage d'une piece par induction |
EP2068598A1 (fr) * | 2007-12-03 | 2009-06-10 | Samsung Electronics Co., Ltd. | Appareil de cuisson chauffant par induction et son procédé de commande |
WO2011080642A1 (fr) * | 2009-12-28 | 2011-07-07 | BSH Bosch und Siemens Hausgeräte GmbH | Système d'appareil de cuisson |
WO2011113660A1 (fr) * | 2010-03-16 | 2011-09-22 | BSH Bosch und Siemens Hausgeräte GmbH | Dispositif de table de cuisson |
WO2012001603A1 (fr) * | 2010-06-28 | 2012-01-05 | BSH Bosch und Siemens Hausgeräte GmbH | Ensemble table de cuisson |
WO2012131526A1 (fr) * | 2011-03-30 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Dispositif de chauffage par induction |
EP2704524A1 (fr) * | 2012-08-28 | 2014-03-05 | AEG Power Solutions GmbH | Dispositif destiné à chauffer par induction électromagnétique, notamment chauffage à induction ou un four à induction |
US9113502B2 (en) | 2008-12-19 | 2015-08-18 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Cook-top having at least three heating zones |
WO2018116056A1 (fr) * | 2016-12-23 | 2018-06-28 | BSH Hausgeräte GmbH | Dispositif pour appareil de cuisson |
EP1951003B2 (fr) † | 2007-01-23 | 2022-11-16 | Whirlpool Corporation | Procédé de commande d'induction d'une plaque de cuisson et d'induction d'une plaque de cuisson adaptée à un tel procédé |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2506669B2 (fr) | 2011-03-29 | 2023-10-11 | BSH Hausgeräte GmbH | Dispositif de commutation |
Citations (3)
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 |
-
2003
- 2003-05-02 FR FR0305408A patent/FR2839605B1/fr not_active Expired - Lifetime
- 2003-05-05 DE DE60303350T patent/DE60303350T2/de not_active Expired - Lifetime
- 2003-05-05 ES ES03291077T patent/ES2257649T3/es not_active Expired - Lifetime
- 2003-05-05 EP EP03291077A patent/EP1361780B1/fr not_active Expired - Lifetime
- 2003-05-05 AT AT03291077T patent/ATE316749T1/de not_active IP Right Cessation
Patent Citations (3)
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)
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 (fr) * | 2004-02-25 | 2005-09-01 | Newfrey Llc | Procede et dispositif pour produire un courant electrique de chauffage destine notamment au chauffage d'une piece par induction |
EP1951003B2 (fr) † | 2007-01-23 | 2022-11-16 | Whirlpool Corporation | Procédé de commande d'induction d'une plaque de cuisson et d'induction d'une plaque de cuisson adaptée à un tel procédé |
EP2068598A1 (fr) * | 2007-12-03 | 2009-06-10 | Samsung Electronics Co., Ltd. | Appareil de cuisson chauffant par induction et son procédé de commande |
US9113502B2 (en) | 2008-12-19 | 2015-08-18 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Cook-top having at least three heating zones |
WO2011080642A1 (fr) * | 2009-12-28 | 2011-07-07 | BSH Bosch und Siemens Hausgeräte GmbH | Système d'appareil de cuisson |
ES2384919A1 (es) * | 2009-12-28 | 2012-07-16 | BSH Electrodomésticos España S.A. | Dispositivo de aparato de cocción. |
WO2011113660A1 (fr) * | 2010-03-16 | 2011-09-22 | BSH Bosch und Siemens Hausgeräte GmbH | Dispositif de table de cuisson |
WO2012001603A1 (fr) * | 2010-06-28 | 2012-01-05 | BSH Bosch und Siemens Hausgeräte GmbH | Ensemble table de cuisson |
WO2012131526A1 (fr) * | 2011-03-30 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Dispositif de chauffage par induction |
EP2704524A1 (fr) * | 2012-08-28 | 2014-03-05 | AEG Power Solutions GmbH | Dispositif destiné à chauffer par induction électromagnétique, notamment chauffage à induction ou un four à induction |
WO2018116056A1 (fr) * | 2016-12-23 | 2018-06-28 | BSH Hausgeräte GmbH | Dispositif pour appareil de cuisson |
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 |
FR2839605A1 (fr) | 2003-11-14 |
DE60303350T2 (de) | 2006-09-07 |
ES2257649T3 (es) | 2006-08-01 |
FR2839605B1 (fr) | 2004-09-10 |
EP1361780B1 (fr) | 2006-01-25 |
ATE316749T1 (de) | 2006-02-15 |
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