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WO2011080642A1 - Système d'appareil de cuisson - Google Patents

Système d'appareil de cuisson Download PDF

Info

Publication number
WO2011080642A1
WO2011080642A1 PCT/IB2010/055830 IB2010055830W WO2011080642A1 WO 2011080642 A1 WO2011080642 A1 WO 2011080642A1 IB 2010055830 W IB2010055830 W IB 2010055830W WO 2011080642 A1 WO2011080642 A1 WO 2011080642A1
Authority
WO
WIPO (PCT)
Prior art keywords
inductor
inverter
cooking
switching
switching 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.)
Ceased
Application number
PCT/IB2010/055830
Other languages
German (de)
English (en)
Inventor
Daniel Palacios Tomas
José Miguel Burdio Pinilla
Ignacio Garde Aranda
Sergio Llorente Gil
Oscar Lucia Gil
Ignacio Millan Serrano
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to EP10810979.4A priority Critical patent/EP2520131B1/fr
Publication of WO2011080642A1 publication Critical patent/WO2011080642A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils

Definitions

  • the invention is based on a cooking device device, in particular a cooktop cooker device, according to the preamble of claim 1.
  • the object of the invention is in particular to provide a generic device with improved properties in terms of power output.
  • the invention is based on a cooking device device, in particular cooking machine device, with at least two inductors provided for connection to at least one alternating current source, each having at least one capacitance.
  • the cooking appliance device comprises at least one switching unit which is provided to connect the capacitances of the inductors to one another in at least one operating mode.
  • a cooking device device which can be advantageously adapted to different power outputs can be provided.
  • this can realize a boost mode with a time-limited power increase, while a power loss in a normal mode can be kept low.
  • a number of necessary components can be kept low.
  • this makes it possible to keep a number of capacitors low, as a result of which a cost-effective cooking appliance device with a high power yield can be realized.
  • an "inductor” is to be understood as meaning, in particular, a structural unit forming a resonant circuit which can be represented in a circuit diagram by means of the capacitance, an inductance and an equivalent resistance the inductor is provided to heat by induction an object such as a saucepan or a pan, and thus form a cooking point.
  • a “capacitance” should be understood to mean, in particular, a structural unit having at least one capacitor, Preferably a capacitance should be understood as meaning a total capacitance of the resonant circuit formed by the inductor, ie in particular a capacitance resulting from all the capacitors of the resonant circuit Connections, in particular connecting cables, should be neglected, and the term “intended” should be understood to mean in particular specially equipped and / or designed.
  • At least one of the inductors has an inductance which is connected in the at least one operating state with the two capacitors at the same time.
  • the power output of the inductor can be influenced particularly advantageously.
  • a resonance frequency of the resonant circuit can thereby be changed, whereby a power loss of the resonant circuit can be reduced.
  • An inductance is to be understood as an entire inductance acting on the resonant circuit formed by means of the inductor, ie in particular an inductance resulting from all the voice coils of the resonant circuit Inductance of electrical connections, in particular connecting cables, should be neglected.
  • the switching unit has at least one switching element which is provided in a switching position to switch the capacitors in parallel.
  • a value of the capacitance which acts on the corresponding resonant circuit can be increased, whereby in particular a maximum power output can advantageously be increased.
  • a switching element is to be understood here as an element for providing a switchable electrical connection
  • the switching element can be of mechanical design, such as a switch, of electrical design, such as a relay, or of electronic design, such as, for example Transistor.
  • the cooking appliance device comprises at least a first, the first inductor associated inverter and a second inverter associated with the second inductor.
  • the first inverter is preferably assigned to the first inductor, ie only intended to supply power to the first inductor
  • the second inverter is assigned to the second inductor, ie only is provided for supplying power to the second inductor.
  • the cooking appliance device further comprises a switching unit, which is provided in at least one switching position to switch the two inverters in parallel.
  • a switching unit which is provided in at least one switching position to switch the two inverters in parallel.
  • the switching unit has at least one first switching element, which is provided to connect the first inverter with the second inductor, which is associated with the second inverter.
  • the switching unit has a second switching element, which is provided to connect the second inverter to the first inductor, which is associated with the first inverter.
  • a boost mode can be provided for both inductors, resulting in high flexibility for an operator.
  • the switching unit is provided to connect the inverters each with at most one of the inductors at the same time.
  • the power provided by both inverters can be selectively supplied to an inductor, whereby the power output of this inductor can be increased particularly advantageously.
  • the two inverters can be connected to the same inductor or to different inductors.
  • the cooking appliance device has a control unit which is provided in at least one operating mode to close the switching unit for connecting the capacitors and the switching unit for connecting the inverters at the same time.
  • Fig. 1 is a circuit diagram of a cooking appliance device according to the invention in an off state
  • Fig. 2 is a circuit diagram of the cooking appliance device according to the invention in one
  • FIG. 1 shows schematically a circuit diagram of a cooking appliance device according to the invention.
  • the cooking appliance device is designed as a cooktop apparatus.
  • the Garellavoriques shown by way of example comprises two Garstellen 38, 40.
  • the Garstellen 38, 40 of Garausvoriques are each designed analog.
  • the cooking appliance can be provided with any number of Garstellen.
  • the first cooking station 38 comprises a first inverter 26 and a first inductor 10 associated with the first inverter 26.
  • the cooking station 38 comprises a DC voltage source 42.
  • the inverter 26 is designed as a half-bridge converter. It provides an AC voltage by means of the DC voltage of the DC voltage source 42. A frequency generated by the inverter 26 is adjustable.
  • the inverter 26 has two switching elements, which are connected in series between a positive terminal 44 and a negative terminal 46 of the DC voltage source 42 of the cooking station 38.
  • the inverter 26 comprises two diodes, which form so-called freewheeling diodes. A cathode of the first diode is connected to the negative terminal 46 of the DC voltage source 42.
  • An anode of the second diode is connected to the positive terminal 44 of the DC voltage source 42.
  • An anode of the first diode and a cathode of the second diode are connected together.
  • the inverter 26 includes a connecting line 48 for the inductor 10.
  • the anode of the first diode, the cathode of the second diode and the two switching elements are connected to each other via the connecting line 48.
  • the frequency generated by the inverter 26 is adjustable by means of a control of the switching elements.
  • the switching elements of the inverter 26 are formed by means of transistors.
  • the inductor 10 forms a resonant circuit. It comprises an inductor 20 and a capacitor 14.
  • the inductor 10 comprises two capacitors 50, 52.
  • the two capacitors 50, 52 have a common first terminal which is connected to the inductor 20 of the inductor 10 by means of a connecting lead 54 connected is.
  • a second terminal of the capacitor 50 is connected to the positive terminal 44 of the DC voltage source 42.
  • a second terminal of the capacitor 52 is connected to the negative terminal 46 of the DC voltage source 42.
  • the two capacitors 50, 52 are the same size.
  • the inductor 10 comprises an induction coil 56.
  • the induction coil 56 is provided for electromagnetic power coupling to magnetizable objects, such as, in particular, cooking pots.
  • An adjustment of the power output by the induction coil 56 is effected by means of the adjustment of the frequency which has occurred by the inverter 26. The output power becomes maximum when the generated frequency corresponds to a resonant frequency of the inductor 10.
  • the second cooking point 40 is designed analogously. It also comprises a separate DC voltage source 58 for supplying the inverter 28. In principle, however, it is also conceivable to design the two DC voltage sources 42, 58 in one piece.
  • the inverter 28 comprises two transistors designed as transistors. te switching elements for switching a frequency of the inverter 28 and two diodes designed as free-wheeling diodes. To connect the inductor 12, it comprises a connecting line 72, by means of which the switching elements and the diodes are connected to one another.
  • the inductor 12 comprises an inductance 22 with an induction coil 60 and a capacitance 16 with two capacitors 62, 64.
  • the two capacitors 62, 64 comprise a common first terminal, which is connected to the inductance 22 by means of a connecting lead 66, and a second one in each case Terminal, which are connected to a positive terminal 68 and a negative terminal 70 of the DC voltage source 58 of the second cooking station 40.
  • the cooking device device For switching the cooking stations 38, 40, the cooking device device comprises a switching unit 30 with two switching elements 32, 34.
  • the switching element 32 is assigned to the first inverter and the first inductor 10. It is arranged between the connection line 48 of the inverter 26 and the inductance 20.
  • the switching element 34 is associated with the second inverter 28 and the inductor 12. It is arranged between the connection line 72 of the inverter 28 and the inductance 22.
  • the switching elements 32, 34 are formed by means of relays.
  • each of the switching elements 32, 34 has a first switching position, in which it connects the inverter 26, 28 of the corresponding cooking point 38, 40 with the inductor 10, 12 of the corresponding cooking point 38, 40. Since the two switching elements 32, 34 are independently switchable, the two Garstellen 38, 40 are activated independently. Further, by means of the switching unit 30, a boost mode switchable. In the boost mode, the switching unit 30 switches the two inverters 26, 28 parallel to each other and supplies the power provided by both inverters 26, 28 to one of the inductors 10, 12. To switch the boost mode, each of the switching elements 32, 34 additionally has a second switching position.
  • the switching element 32 connects the connecting line 48 of the first inverter 26 to the connecting line 72 of the second inverter 28.
  • the switching element 34 connects the connecting line 72 of the second inverter 28 to the inductor 10 of the first cooking point 38.
  • the switching unit 30 connects the inductor 10 with both inverters 26, 28.
  • the switching element 32 which is associated with the inductor 10, switched to its first switching position.
  • the inductor 10 is thus connected to the associated inverter 26.
  • the other switching element 34 is switched to the second switching position.
  • the inverter 28 which is associated with the second inductor 12, also connected to the first inductor 10.
  • the two inverters 26, 28 are thus connected in parallel with each other. They jointly supply the first inductor 10 (see Fig. 2).
  • the switching unit 30 connects the inductor 12 with both inverters 26, 28.
  • the switching element 34 which is associated with the inductor 12, switched to its first switching position.
  • the inductor 12 is thus connected to the associated inverter 28.
  • the other switching element 32 is switched to the second switching position.
  • the inverter 26 associated with the first inductor 10 is also connected to the second inductor 12.
  • the two inverters 26, 28 are thus connected in parallel with each other. They jointly supply the second inductor 12.
  • the cooking appliance device comprises, in addition to the switching unit 30, a second switching unit 18, by means of which the capacitors 14, 16 of the two inductors 10, 12 can be connected to one another.
  • the switching unit 18 comprises a switching element 24, by means of which the two connecting lines 54, 66 for connecting the capacitances 14, 16 to the inductors 20, 22 are electrically connectable to each other. By closing the switching element 24, the capacitances 14, 16 of the different cooking stations 38, 40 are connected in parallel. That of the inductors 10, 12, for which the boost mode is switched, is thus available in the boost mode, a higher capacity.
  • the switching element 24 of the switching unit 18 is designed as a relay.
  • the cooking device device comprises a control unit 36, by means of which the switching elements 24, 32, 34 of the switching units 18, 30 and the switching elements of the inverters 26, 28 are controlled.
  • the control unit 36 activates the cooking stations 38, 40 by means of the switching unit 30 in accordance with an operator's specification. For this purpose, it closes the switching element 32, 34 assigned to the selected cooking point 38, 40 and subsequently sets it by means of the two switching elements. elements of the corresponding inverter 26, 28 a frequency corresponding to a selected power of the corresponding cooking point 38, 40.
  • the control unit 36 activates the selected cooking point 38, 40 by means of the switching unit 30. In addition, it switches the switching element 32, 34, which is assigned to the inactive cooking point 38, 40, in the second switching position. In addition, it closes the switching element 24 of the second switching unit 18. Subsequently, by means of the switching elements of both inverters 26, 28, it sets a frequency which corresponds to a resonance frequency of the corresponding inductor 10 taking into account the coupled capacitances 14, 16.

Landscapes

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

Abstract

L'invention concerne un système d'appareil de cuisson, en particulier un système d'appareil de cuisson type plaque de cuisson, comprenant au moins deux bobines d'induction (10, 12) prévues pour être raccordées à au moins une source de courant alternatif et comportant chacune au moins un condensateur (14, 16). Le but de l'invention est de fournir un système d'appareil de cuisson présentant une caractéristique améliorée en terme de rendement en puissance. A cet effet, le système d'appareil de cuisson comprend au moins une unité de commutation (18) prévue pour raccorder les condensateurs (14, 16) des bobines d'induction (10, 12) l'un à l'autre, dans au moins un mode de fonctionnement.
PCT/IB2010/055830 2009-12-28 2010-12-15 Système d'appareil de cuisson Ceased WO2011080642A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10810979.4A EP2520131B1 (fr) 2009-12-28 2010-12-15 Système d'appareil de cuisson

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200931274 2009-12-28
ES200931274A ES2384919B1 (es) 2009-12-28 2009-12-28 Dispositivo de aparato de cocción.

Publications (1)

Publication Number Publication Date
WO2011080642A1 true WO2011080642A1 (fr) 2011-07-07

Family

ID=43806719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/055830 Ceased WO2011080642A1 (fr) 2009-12-28 2010-12-15 Système d'appareil de cuisson

Country Status (3)

Country Link
EP (1) EP2520131B1 (fr)
ES (1) ES2384919B1 (fr)
WO (1) WO2011080642A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2453714A1 (fr) * 2010-11-10 2012-05-16 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage à induction
WO2012131526A1 (fr) * 2011-03-30 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage par induction
EP2590476A1 (fr) * 2011-11-04 2013-05-08 BSH Bosch und Siemens Hausgeräte GmbH Dispositif dýappareil ménager
WO2013064968A3 (fr) * 2011-11-04 2013-12-19 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage par induction
EP3557944A1 (fr) * 2018-04-19 2019-10-23 LG Electronics Inc. Dispositif de chauffage par induction ayant un algorithme de commande et une structure de circuit améliorés
EP3570634A1 (fr) * 2018-05-16 2019-11-20 LG Electronics Inc. Dispositif de chauffage par induction ayant un algorithme de commande et une structure de circuit améliorés

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989916A (en) * 1972-11-15 1976-11-02 Matsushita Electric Industrial Co., Ltd. Induction heating appliance for a cooking utensil
EP1361780A1 (fr) * 2002-05-07 2003-11-12 Elka Module de cuisson électrique à induction et procédé de commande du module
WO2005043737A2 (fr) * 2003-11-03 2005-05-12 BSH Bosch und Siemens Hausgeräte GmbH Procede d'utilisation d'un circuit de convertisseur
WO2007048700A1 (fr) * 2005-10-27 2007-05-03 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson et procede permettant de faire fonctionner une plaque de cuisson

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989916A (en) * 1972-11-15 1976-11-02 Matsushita Electric Industrial Co., Ltd. Induction heating appliance for a cooking utensil
EP1361780A1 (fr) * 2002-05-07 2003-11-12 Elka Module de cuisson électrique à induction et procédé de commande du module
WO2005043737A2 (fr) * 2003-11-03 2005-05-12 BSH Bosch und Siemens Hausgeräte GmbH Procede d'utilisation d'un circuit de convertisseur
WO2007048700A1 (fr) * 2005-10-27 2007-05-03 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson et procede permettant de faire fonctionner une plaque de cuisson

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2453714A1 (fr) * 2010-11-10 2012-05-16 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage à induction
WO2012131526A1 (fr) * 2011-03-30 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage par induction
EP2590476A1 (fr) * 2011-11-04 2013-05-08 BSH Bosch und Siemens Hausgeräte GmbH Dispositif dýappareil ménager
ES2423237R1 (es) * 2011-11-04 2013-10-11 Bsh Electrodomesticos Espana Dispositivo de aparato doméstico con unidades rectificadoras
WO2013064968A3 (fr) * 2011-11-04 2013-12-19 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage par induction
EP3557944A1 (fr) * 2018-04-19 2019-10-23 LG Electronics Inc. Dispositif de chauffage par induction ayant un algorithme de commande et une structure de circuit améliorés
US11064577B2 (en) 2018-04-19 2021-07-13 Lg Electronics Inc. Induction heating device having improved control algorithm and circuit structure
EP3570634A1 (fr) * 2018-05-16 2019-11-20 LG Electronics Inc. Dispositif de chauffage par induction ayant un algorithme de commande et une structure de circuit améliorés
US11265973B2 (en) 2018-05-16 2022-03-01 Lg Electronics Inc. Induction heating device having improved control algorithm and circuit structure

Also Published As

Publication number Publication date
EP2520131A1 (fr) 2012-11-07
EP2520131B1 (fr) 2017-03-08
ES2384919B1 (es) 2013-05-20
ES2384919A1 (es) 2012-07-16

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