WO2016071824A1 - Dispositif pour appareil de cuisson - Google Patents

Dispositif pour appareil de cuisson Download PDF

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Publication number
WO2016071824A1
WO2016071824A1 PCT/IB2015/058463 IB2015058463W WO2016071824A1 WO 2016071824 A1 WO2016071824 A1 WO 2016071824A1 IB 2015058463 W IB2015058463 W IB 2015058463W WO 2016071824 A1 WO2016071824 A1 WO 2016071824A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching
heating module
unit
switching element
cooking appliance
Prior art date
Application number
PCT/IB2015/058463
Other languages
German (de)
English (en)
Inventor
José Miguel Burdio Pinilla
Sergio Llorente Gil
Oscar Lucia Gil
Daniel Palacios Tomas
Alberto RUIZ ERNI
Ivan RUIZ ERNI
Hector Sarnago Andia
Original Assignee
BSH Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Priority to DE112015005055.8T priority Critical patent/DE112015005055A5/de
Publication of WO2016071824A1 publication Critical patent/WO2016071824A1/fr

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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

Definitions

  • the invention relates to a Garellavorsch according to the preamble of
  • Patent claim 1 and a method for operating a cooking appliance device according to the preamble of claim 11.
  • Series connection of the rectifier diodes are connected in parallel. Parallel to this, a buffer capacity is switched.
  • the series connection of the switching units and the series circuit of the rectifier diodes are arranged in a full bridge circuit and connected to each other via a bridge branch, in which a
  • the AC voltage source is the
  • Rectifier diodes facing and arranged directly with each of the
  • Rectifier diodes connected.
  • a series connection of an induction heating element and a damping capacity of the cooking appliance device branches from a connection between the two switching units and from a connection between a second of the
  • the object of the invention is, in particular, a generic
  • the invention is based on a cooking device device, in particular a
  • Hob device with a main heating module, which has a first and a second
  • Switching unit each having a switching element and a diode connected in parallel to the switching element, and which is intended to cooperate in a rectification of an AC voltage, and having a control unit which is provided in at least one operating state, the switching elements of the first and second
  • the cooking device device comprises an auxiliary heating module which comprises a third and a fourth switching unit, each having a switching element and a diode connected in parallel to the switching element, the control unit being provided in at least one operating state, the switching elements of the third and fourth to stimulate the fourth switching unit to generate a high-frequency further heating current, in particular for a further heating element of the auxiliary heating module.
  • a "cooking device device” is intended in particular to be at least one part, in particular one
  • a cooking appliance in particular a cooktop and preferably an induction cooktop are understood.
  • the cooking appliance device may also comprise the entire cooking appliance, in particular the entire hob and preferably the entire induction hob.
  • a "main heating module” is to be understood as meaning, in particular, a unit on which, in at least one operating state, one as
  • AC voltage formed mains voltage which in particular from a
  • auxiliary heating module is to be understood in particular as meaning a unit on which in at least one
  • switching unit is to be understood as meaning, in particular, a unit which is intended to change a current-conducting property when a switching position is changed.
  • the switching units are in particular designed as bidirectional unipolar switches and leave an electric current independent, in particular in a first switching position of the respective switching element at least substantially unimpeded from a polarity of an applied voltage, wherein the switching units in a second switching position of the respective switching element at least substantially unimpeded pass or at least substantially block an electrical current depending on a polarity of a voltage applied to the respective switching unit
  • Switching element is to be understood in particular an electrical and / or electronic element having a first contact and a second contact and is provided for this purpose t, between the first contact and the second contact to establish and / or disconnect an electrically conductive connection, and in particular in addition to the first contact and the second contact, in particular a control contact for receiving a control signal.
  • the switching element can be switched via the control contact, wherein the switching element can be provided in particular to, by means of the control contact, a control signal, in particular from the control unit to receive and change in response to the control signal a switching
  • the switching element could be designed as a mechanical and / or electromechanical and / or electromagnetic switching element, in particular as a relay.
  • the switching element could alternatively as a transistor, in particular as a
  • a "diode” is to be understood, in particular, as an electrical and / or electronic component which generates an electrical current as a function of a polarity of a diode applied to the diode
  • the diodes of the switching units are as
  • heating current is to be understood in particular as meaning an electric current which is supplied to the heating element in particular in at least one operating state and which changes its current intensity in a time profile, in particular periodically with a heating frequency which advantageously has a value in a range from 10 kHz to 500 kHz, preferably from 20 kHz to 100 kHz.
  • a heating element is to be understood as meaning, in particular, an element which is intended to convert energy, preferably electrical energy, into heat and in particular supply it to at least one cooking utensil.
  • the heating element is designed in particular as an induction heating element and is preferably provided to generate an electromagnetic alternating field, in particular with a heating frequency of 10 kHz to 150 kHz, preferably from 20 kHz to 100 kHz, which is in particular provided in a set up, in particular metallic and preferably ferromagnetic cooking dish bottom to be converted by heat Wrgewstromindutation and / or Ummagnetmaschines bulke.
  • a heating frequency 10 kHz to 150 kHz, preferably from 20 kHz to 100 kHz, which is in particular provided in a set up, in particular metallic and preferably ferromagnetic cooking dish bottom to be converted by heat Wrgewstromindutechnik and / or Ummagnetmaschines bulke.
  • control unit is intended in particular an electrical and / or
  • Control unit of a cooking appliance is at least partially integrated and is preferably intended to control at least the switching elements and / or to regulate.
  • the control unit comprises a computing unit and in particular in addition to
  • Arithmetic unit a memory unit with a stored therein control and / or
  • Control program that is intended to be executed by the arithmetic unit.
  • the control unit is provided to "excite" the switching elements of the first and the second switching unit in at least one operating state to generate a high-frequency heating current, in particular for the heating element, should be understood in particular that the control unit in the at least one operating state a switching position of the switching elements of the first and the second
  • a heating frequency changes, in particular, a value in a range of 10 kHz to 150 kHz, preferably from 20 kHz to 100 kHz, and with which in particular the high-frequency heating current in the at least one operating state flows through the heating element.
  • the term "provided” should be understood to mean specially programmed, designed and / or equipped.Assuming that an object is intended for a specific function should in particular mean that the object fulfills this specific function in at least one application and / or operating state In particular, a high degree of efficiency can be achieved by the configuration according to the invention, In particular, a plurality of heating elements can be supplied, in particular with a small number of electrical and / or electronic components
  • any combination of heating elements can be supplied.
  • low line losses can be achieved, thereby enabling high efficiency.
  • a high degree of flexibility can be achieved by permitting a permeability to the electric current of the main heating module to be changed as desired, in particular to rectify the alternating voltage
  • the cooking appliance apparatus comprise a boost converter unit, which is formed in part by the main heating module and which is intended to convert an input voltage into an output voltage that is greater than that
  • boost converter unit is to be understood as meaning, in particular, a unit which is intended to convert a first AC voltage, in particular the input voltage, into a second AC voltage, in particular the DC voltage
  • the boost converter unit has, in particular, at least one inductance, in particular a boost inductance, and a diode connected in series with the inductance and a switching element and a capacitor, in particular a buffer capacitor, which is arranged in particular on an end of the series circuit of inductance and diode facing away from the inductance , wherein the control unit is provided in particular to, by changing a switching position of the switching element the
  • the inductance of the boost converter unit is in particular provided in the case of a closed switching element of Boost unit, especially at applied input voltage, to increase an energy stored in the inductance of the boost converter unit.
  • the inductance of the step-up converter unit is provided, in the case of an open switching element of the step-up converter unit, in particular in the case of non-adjacent
  • Boost converter unit is in particular intended to at least substantially prevent a backflow of the energy stored in the capacitance in the direction of the inductance.
  • the switching element and the diode of the step-up converter unit can, in particular in a periodic change on the one hand by the switching element of the first switching unit and the diode of the second switching unit and on the other hand of the
  • Switching element of the second switching unit and the diode of the first switching unit to be formed.
  • a high efficiency can be achieved, since a lower electrical current is advantageously required to achieve a specific output power.
  • the cooking device device comprises a buffer capacity which is connected in parallel to the main heating module and which has a maximum capacitance value of 10 ⁇ F, in particular of at most 8 ⁇ F, advantageously of at most 7 ⁇ F, particularly advantageously of at most 6 ⁇ F and preferably of at most 5 ⁇ and which is preferably part of the up-converter unit.
  • the buffer capacity has in particular a capacitance value of at least 0.01 ⁇ , advantageously of at least 0.05 ⁇ and preferably of at least 0, 1 ⁇ .
  • the buffer capacity is connected in parallel with the auxiliary heating module.
  • a "capacitance" is to be understood in particular to mean any series connection and / or parallel connection of capacitors, thereby making it possible in particular for an energy store to store excess energy
  • the boost converter unit is provided to increase a voltage applied to the buffer capacitor, whereby in particular a particularly advantageous high efficiency is achieved.
  • a low-cost configuration and / or a small number of components can be made possible.
  • the main heating module has a resonance capacity which has a capacitance value of at most 10.sup.-1 F, in particular of at most 800 .mu.l, advantageously of has a maximum of 700 pF, particularly advantageously of not more than 600 pF and preferably of not more than 500 pF.
  • the resonance capacity has a capacitance value, in particular of at least 100 pF, particularly advantageously of at least 150 pF and preferably of at least 20 pF.
  • Heating element in particular by a series circuit of the heating element and the resonance capacity can be achieved. Furthermore, by such a configuration, a resonance frequency in response to an inductance of the heating element on a
  • the auxiliary heating module has a further resonance capacity, which has a maximum capacitance value of 10 F, in particular of at most 800 pF, advantageously of at most 700 pF, particularly advantageously of at most 600 pF and preferably of at most 500 pF.
  • the further resonance capacity has a capacitance value, in particular of at least 100 pF, particularly advantageously of at least 150 pF and preferably of at least 20 pF.
  • Design a further resonant frequency as a function of an inductance of the further heating element can be set to an advantageous value.
  • the Hilfshackmodul could be provided to participate in the rectification of the AC voltage.
  • the cooking device device preferably comprises a first and a second rectifier diode, which are provided to participate in the rectification of the alternating voltage. This can be made possible in particular a high reliability in the rectification of the AC voltage. In particular, a low-cost configuration can be achieved.
  • the main heating module could be provided, for example, only the
  • Heating element of the main heating module to supply, wherein the switching units of the
  • Main heating module in particular in each activated state could be electrically connected to the heating element of the Hauptfindmoduls.
  • the main heating module preferably has a configuration switching element, wherein the control unit is provided to switch the switching units of the main heating module by means of the
  • Configuration switching element with a heating element of Hauptfindmoduls and / or with a further heating element of the auxiliary heating module, in particular with the heating element of the Hauptfindmoduls and / or electrically connected to the further heating element of the Hilfshielmoduls.
  • the auxiliary heating module could, for example, be provided to supply only the further heating element of the auxiliary heating module, the switching units of the
  • the auxiliary heating module preferably has a further configuration switching element, wherein the control unit is provided for switching the switching units of the auxiliary heating module by means of the other
  • the cooking appliance device should not be limited to the application and embodiment described above.
  • the cooking appliance device may have a different number than a number of individual elements, components and units mentioned herein.
  • FIG. 1 shows a cooking appliance with a cooking appliance device in a schematic plan view
  • Fig. 2 shows the cooking appliance apparatus in a general state in a schematic representation
  • Fig. 3 is a simplified example of the cooking appliance apparatus of Fig. 2 in the general
  • Presentation shows the cooking device device in a second switching state in a schematic representation
  • Fig. 8 is a diagram in which an output of a Haupttropicmoduls the
  • Garellavorsch is applied over a switching frequency, in a schematic representation
  • FIG. 10 is a diagram in which a current output, a heating current and an output power of switching units with respect to the main heating module and the Hilfshielmodul are plotted over time, in a schematic
  • Fig. 1 shows a cooking appliance 62, which is designed as a hob, with a
  • Garellavoriques 10 which is designed as a hob device.
  • the cooking appliance could be designed, for example, as an oven, in particular as an induction baking oven, and / or as a stove, in particular as an induction cooker.
  • an oven in particular as an induction baking oven
  • a stove in particular as an induction cooker.
  • the cooking device 62 is formed as a hob.
  • the cooking appliance 62 is designed as an induction hob.
  • the cooking appliance 62 comprises an appliance plate 64.
  • the appliance plate 64 forms part of an outer housing, in particular of the cooking appliance 62.
  • the device plate 64 forms in an installed position an operator facing part of the outer housing.
  • the device plate could be designed, for example, as a front plate and / or cover plate of the outer housing, in particular of a cooking appliance designed as an oven and / or as a stove.
  • the device plate 64 is formed as a hob plate.
  • the appliance plate 64 is provided for setting up cooking utensils.
  • the cooking device 62 comprises an operating unit 66 for inputting and / or selecting operating parameters (see FIG. 1), for example a heating power and / or a heating power
  • the operating unit 66 is provided for outputting a value of an operating parameter to an operator.
  • the operating unit could optically and / or the value of the operating parameter to an operator output acoustically.
  • the cooking device device 10 comprises a control unit 40.
  • the control unit 40 is provided to execute actions and / or to change settings as a function of operating parameters entered by means of the operating unit 66.
  • the cooking device device 10 is provided for connection to a voltage source 72 (see Fig. 2).
  • the cooking appliance device 10 is provided for connection to an AC voltage source.
  • the assembled state is the
  • Garellavoriques 10 connected to an electrical network, in particular the cooking appliance 62.
  • the cooking appliance device 10 is country-specific to be connected to different voltage sources 72. Depending on a country, the cooking device device 10 is intended to be connected to AC voltages typical for the respective country. For example, a cooking appliance device provided for operation in Germany could be provided to supply a mains voltage with an effective value of substantially 230 V and with a
  • a cooking appliance device intended for US operation could be intended to be connected to a power supply voltage having a frequency of substantially 60 Hz.
  • the cooking appliance device 10 has a first and a second contact.
  • the voltage source 72 has a first contact and a second contact. The first contact of the cooking device device 10 and the first contact of the voltage source 72 are electrically conductively connected to each other. The second contact of the cooking appliance device 10 and the second contact of the voltage source 72 are electrically conductively connected to each other.
  • the contacts of the voltage source 72 are used for a description.
  • the cooking device device 10 comprises a boost inductance 74.
  • the boost inductance could be formed by any parallel connection and / or series connection of inductances.
  • the boost inductance 74 is formed by an inductor.
  • the boost inductance 74 has a first contact and a second contact. The second contact of the voltage source 72 and the first contact of the boost inductance 74 are connected to one another in an electrically conductive manner.
  • the voltage source 72 and the boost inductance 74 are connected in series.
  • the cooking appliance apparatus 10 includes a main heating module 36 (see Fig. 2).
  • the cooking appliance apparatus 10 includes a main heating module 36 (see Fig. 2).
  • Main heating module 36 has a first switching unit 12 and a second switching unit 14.
  • the first switching unit 12 has a first switching element 20 and one to the first
  • the second switching unit 14 has a second switching element 22 and a second diode 30 connected in parallel with the second switching element 22.
  • the cooking device device 10 comprises a plurality of auxiliary heating modules 38a, 38n (see Fig. 2).
  • the cooking appliance apparatus 10 includes a number of n auxiliary heating modules 38a, 38n.
  • the number n could be a number of auxiliary heating modules which could be operated at the same time.
  • the number n could additionally have a maximum number of
  • the auxiliary heating modules 38a,..., 38n are substantially identical, for which reason only one auxiliary heating module 38 of the auxiliary heating modules 38a, 38n will be described below.
  • the auxiliary heating module 38 has a third switching unit 16 and a fourth switching unit 18.
  • the third switching unit 16 has a third switching element 24 and a third diode 32 connected in parallel with the third switching element 24.
  • the fourth switching unit 18 has a fourth switching element 26 and a fourth diode 34 connected in parallel with the fourth switching element 26.
  • the switching units 12, 14, 16, 18 are formed substantially the same, so a structure of the switching units 12, 14, 16, 18 is generally described for a switching unit 12, 14, 16, 18.
  • the switching element 20, 22, 24, 26 has a first contact and a second contact.
  • the switching element 20, 22, 24, 26 also has a control contact in addition to the first contact and the second contact.
  • the control unit 40 in an operating state, actuates the switching element 20, 22, 24, 26 by means of the control contact.
  • By means of a control of the switching element 20, 22, 24, 26 changes the control unit 40 in the operating state, a switching position of the switching element 20, 22, 24, 26.
  • the diode 28, 30, 32, 34 has a first contact and a second contact.
  • the first contact of the switching element 20, 22, 24, 26 and the first contact of the diode 28, 30, 32, 34 are electrically conductively connected to each other.
  • the second contact of the switching element 20, 22, 24, 26 and the second contact of the diode 28, 30, 32, 34 are electrically conductively connected to each other.
  • the switching unit 12, 14, 16, 18 has a first contact and a second contact.
  • the first contact of the switching unit 12, 14, 16, 18 is electrically connected to the first contact of the switching element 20, 22, 24, 26 and the first contact of the diode 28, 30, 32, 34.
  • the second contact of the switching unit 12, 14, 16, 18 is electrically connected to the second contact of the switching element 20, 22, 24, 26 and the second contact of the diode 28, 30, 32, 34.
  • Forward direction of the switching element 20, 22, 24, 26 and a forward direction of the diode 28, 30, 32, 34 are antiparallel to each other.
  • the passage direction is given in relation to a technical current flow direction.
  • the cooking appliance device 10 comprises a first main line 68 and a second
  • Main line 70 refers in particular to an electrically conductive connection between units and / or elements.
  • the first switching unit 12 and the second switching unit 14 are connected in series.
  • the second contact of the first switching unit 12 and the first contact of the second switching unit 14 are electrically conductively connected to each other.
  • the first contact of the first switching unit 12 and the first main line 68 are electrically conductively connected to each other.
  • the second contact of the second switching unit 14 and the second main line 70 are electrically conductively connected to each other.
  • the third switching unit 16 and the fourth switching unit 18 are connected in series.
  • the second contact of the third switching unit 16 and the first contact of the fourth switching unit 18 are electrically conductively connected to each other.
  • the first contact of the third switching unit 16 and the first main line 68 are electrically conductively connected to each other.
  • the second contact of the fourth switching unit 18 and the second main line 70 are electrically conductively connected to each other.
  • the main heating module 36 and the auxiliary heating module 38 are connected in parallel.
  • the main heating module 36 has a heating element 58 (see Figures 2 and 3).
  • the heating element 58 has a first contact and a second contact.
  • the auxiliary heating module 38 has a further heating element 60 (see FIGS. 2 and 3).
  • the further heating element 60 has a first contact and a second contact.
  • the heating element 58 and the further heating element 60 are each shown as a coil and a resistor.
  • the heating elements 58, 60 are provided on the device plate 64 above the
  • Heating elements 58, 60 heated cooking utensils.
  • the heating elements 58, 60 are designed as induction heating elements.
  • the control unit 40 controls in one
  • Heating mode an energy supply to the heating elements 58, 60.
  • control unit 40 Operating state, the control unit 40, the switching elements 20, 22 of the first and second switching unit 12, 14 for generating a high-frequency heating current for the heating element 58 at.
  • the control unit 40 excites the switching elements 24, 26 of the third and the fourth switching unit 16, 18 in an operating state to generate a
  • the heating elements 58, 60 are formed substantially identical, so the properties of each of the heating elements 58, 60 is described using the example of the heating element 58.
  • the heating element 58 has a
  • Heating element have an inductance of a different value, which could be advantageous in a range of 10 ⁇ to 500 ⁇ .
  • the heating element 58 has in the case of a set up cooking dishes a Wderstand with a value that is dependent on properties of the cooking utensils.
  • the heating element could have a resistor of a different value, which could advantageously be in a range of 1 ⁇ to 100 ⁇ .
  • the main heating module 36 has a resonance capacity 46.
  • the present disclosure
  • the resonant capacitor 46 is formed by a capacitor.
  • the resonant capacitor 46 has a first contact and a second contact.
  • the second contact of the heating element 58 and the first contact of the resonance capacitor 46 are electrically conductively connected to each other.
  • the resonant capacitance 46 is associated with the heating element 58.
  • the second contact of the resonance capacitor 46 and the second main line 70 are electrically conductively connected to each other.
  • the resonant capacitance 46 has a capacitance value of substantially 300 pF.
  • the resonant capacitance could have a different capacitance value, which could advantageously be in a range of 10 pF to 10 JIF.
  • the auxiliary heating module 38 has a further resonance capacity 48.
  • the further resonance capacity 48 is formed by a capacitor.
  • the further resonance capacitor 48 has a first contact and a second contact. The second contact of the further heating element 60 and the first contact of the further resonance capacitor 48 are connected to one another in an electrically conductive manner. The others
  • Resonant capacity 48 is associated with the further heating element 60.
  • the second contact of the further resonance capacitor 48 and the second main line 70 are connected to one another in an electrically conductive manner.
  • the further resonance capacitor 48 has a capacitance value of substantially 300 pF.
  • the further resonant capacitance could have a different capacitance value, which could advantageously be in a range of 10 pF to 10.
  • the main heating module 36 has a configuration switching element 54.
  • Configuration switching element 54 has a first contact and a second contact and a third contact.
  • the configuration switching element 54 is formed as a changeover switch.
  • the first contact of the configuration switching element 54 and the first contact of the second switching unit 14 are electrically conductively connected to each other.
  • the first contact of the configuration switching element 54 and the second contact of the first switching unit 12 are electrically conductively connected to each other.
  • Configuration switching element 54 and the first contact of the heating element 58 are electrically conductively connected to each other.
  • the auxiliary heating module 38 has a further configuration switching element 56.
  • the further configuration switching element 56 has a first contact and a second contact and a third contact.
  • the further configuration switching element 56 is as a
  • the first contact of the further configuration switching element 56 and the first contact of the fourth switching unit 18 are connected to one another in an electrically conductive manner.
  • the first contact of the further configuration switching element 56 and the second contact of the third switching unit 16 are electrically conductively connected to one another.
  • the second contact of the further configuration switching element 56 and the first contact of the further heating element 60 are connected to one another in an electrically conductive manner.
  • Configuration switching element 54 are electrically connected to each other. The second contact of the configuration switching element 54 and the first contact of the other
  • Heating element 60 are electrically connected to each other.
  • the third contact of the further configuration switching element 56 and the first contact of the heating element 58 are connected to one another in an electrically conductive manner.
  • Configuration switching element 56 and the third contact of the configuration switching element 54 are electrically connected to each other.
  • the control unit 40 electrically connects the switching units 12, 14 of the main heating module 36 with the heating element 58 of the main heating module 36 by means of the configuration switching element 54 (see FIG. 4). In the first switching state, the control unit 40 connects, by means of the further configuration switching element 56, the switching units 16, 18 of the auxiliary heating module 38 to the heating element 58 of FIG.
  • Main heating module 36 electrically conductive.
  • the control unit 40 operates in the first one
  • the control unit 40 electrically connects the switching units 12, 14 of the main heating module 36 with the further heating element 60 of the auxiliary heating module 38 by means of the configuration switching element 54 (see FIG. In the second switching state, the control unit 40 connects by means of the other
  • the control unit 40 connects the switching units 12, 14 of the Haupttogethermoduls 36 by means of the configuration switching element 54 with the other in a third switching state
  • Heating element 60 of the Hilfshielmoduls 38 electrically conductive (see Fig. 6).
  • the control unit 40 connects by means of the other
  • Configuration switching element 56 the switching units 16, 18 of the Hilfshielmoduls 38 with the heating element 58 of the Haupttogethermoduls 36 electrically conductive.
  • the control unit 40 operates in the third switching state, the heating element 58 and the further heating element 60th
  • the control unit 40 electrically connects the switching units 12, 14 of the main heating module 36 to the heating element 58 of the main heating module 36 by means of the configuration switching element 54 (see FIG. In the fourth switching state, the control unit 40 electrically connects the switching units 16, 18 of the auxiliary heating module 38 with the further heating element 60 of the auxiliary heating module 38 by means of the further configuration switching element 56.
  • the control unit 40 operates in the fourth
  • the cooking appliance device 10 comprises a buffer capacity 44.
  • the buffer capacity 44 is formed by a capacitor.
  • the buffer capacity 44 has a capacitance value of substantially 5 ⁇ F.
  • the buffering capacity could have a different capacitance value, which could advantageously be in the range of 0.1 ⁇ F to 10 ⁇ F.
  • the buffering capacitor 44 has a first contact and a second contact.
  • the first contact of the buffer capacitor 44 and the first main line 68 are electrically conductively connected to each other.
  • the second contact of the buffer capacitor 44 and the second main line 70 are electrically conductively connected to each other.
  • the buffer capacity 44 and the auxiliary heating module 38 are connected in parallel.
  • the buffer capacity 44 and the main heating module 36 are connected in parallel.
  • the main heating module 36 acts in an operating state at a rectification of an alternating voltage. At the rectification of the AC voltage act in the
  • the cooking appliance apparatus 10 includes the first rectifier diode 50 and a second rectifier diode 52.
  • the first rectifier diode 50 has a first contact and a second contact.
  • the second rectifier diode 52 has a first contact and a second contact.
  • the first rectifying diode 50 and the second rectifying diode 52 are connected in series.
  • the second contact of the first rectifier diode 50 and the first contact of the second rectifier diode 52 are electrically conductively connected to each other.
  • the first contact of the first rectifier diode 50 and the first main line 68 are electrically conductively connected to each other.
  • the second contact of the second rectifier diode 52 and the second main line 70 are electrically conductively connected to each other.
  • the series connection of the rectifier diodes 50, 52 and the Hilfshielmodul 38 are connected in parallel.
  • the series connection of the rectifier diodes 50, 52 and the main heating module 36 are connected in parallel.
  • Rectifier diodes 50, 52 and the main heating module 36 are arranged in the form of a bridge circuit.
  • the series circuit of the rectifier diodes 50, 52 and the series circuit of the first switching unit 12 and the second switching unit 14 are arranged in the form of a bridge circuit.
  • the series connection of the rectifier diodes 50, 52 and the series circuit of the first switching unit 12 and the second switching unit 14 are electrically conductively connected to each other via a bridge branch.
  • the cooking appliance apparatus 10 includes a boost converter unit 42.
  • the boost converter unit 42 is partially formed by the main heating module 36.
  • the boost converter unit 42 partially through the first and the second
  • the boost converter unit 42 is partially through the
  • the boost inductance 74 has an inductance with a value in a range of 10 ⁇ to 10 mH.
  • the boost converter unit 42 is partially formed by the buffering capacitor 44.
  • the buffer capacity 44 ensures a uniform power factor in the operating state. In the operating state, the buffering capacitor 44 filters high-frequency alternating current.
  • the boost converter unit 42 in the operating state, converts an input voltage to an output voltage that is greater than the input voltage.
  • the voltage source 72 provides the input voltage.
  • the input voltage is formed as an AC voltage.
  • the boost converter unit 42 increases a voltage applied to the buffer capacitor 44 voltage.
  • Up conversion unit 42 converts the input voltage in the operating state.
  • the output voltage is formed as an AC voltage.
  • an electrical current flows through the boost inductance 74.
  • current flow through the boost inductance 74 is interrupted.
  • the boost inductance 74 maintains the current flow through the boost inductance 74 for a short time.
  • the boost inductance 74 charges the buffer capacitor 44 with energy stored in the boost inductance 74. At the buffer capacity 44 is at this time the output voltage, which is greater than that
  • Input voltage A value of the output voltage is calculated using the following formula:
  • V B us is the output voltage and V AC is the input voltage.
  • D is one
  • the duty cycle D is defined as a quotient of the time duration T A , T B , in which the control unit 40, the corresponding switching element 20, 22 excites, and the period T A B i
  • the control unit 40 excites either the first switching element 20 or the second switching element 22 in an operating state at a certain time, and in particular not both together.
  • the control unit 40 excites in a method for operating the
  • the control unit 40 excites the switching elements 20, 22, 24, 26 of the corresponding switching units 12, 14, 16, 18 with a switching frequency f.
  • the control unit 40 defines, by means of the switching frequency f, a frequency of the corresponding high-frequency heating current.
  • control unit 40 regulates, in particular exclusively by means of the main heating module 36, a value of the output voltage V B us-Den value of
  • Output voltage V B us controls the control unit 40 in an operating state over a period of excitation of the switching elements 20, 22 of the switching units 12, 14 of the
  • the switching units 12, 14 of the Haupttogethermoduls 36 behave in an operating condition as an inverter, which is arranged in a "direct AC-AC boost resonant converter" designated circuit.
  • control unit 40 regulates a value of an output power P Ma in the main heating module 36 by means of the main heating module 36.
  • the control unit 40 regulates the value of the output power P Ma in an operating state via the switching frequency f Ma in the switching elements 20, 22 of the switching units 12 , 14 of the main heating module 36.
  • the variable R eq (fivi a in) corresponds to an electrical equivalent of a load to be heated, which in particular by a coupling of the heating element to a set up on the heating element Garware and / or depending on the characteristics of the cooking utensils.
  • the control unit 40 regulates in one operating state the value of the output power PMain over a duty cycle D of the switching units 12, 14 of the Haupttogethermoduls 36. In one operating state, the control unit 40 controls the value of the output power P Ma in on the value of the output voltage V B us-
  • Up converter unit 42 converts the input voltage to the larger output voltage
  • control unit 40 increases the output power P Ma in FIG. 36 by increasing the duty cycle D. For a duty cycle of substantially 0.1, a first result
  • Main output power curve 76 with a low maximum output power P Ma in (see Fig. 8).
  • Fig. 8 shows a third main output power curve 80 for a duty cycle of substantially 0.5, a fourth main output power curve 82 for a duty cycle of substantially 0.6 and a fifth main output power curve 84 for a duty cycle of substantially 0.7.
  • an output power P Ma in increases.
  • the switching units 16, 18 of the Hilfshielmoduls 38 behave in an operating condition as an inverter, which is arranged in a half-bridge circuit.
  • the control unit 40 regulates a voltage applied to the auxiliary heating module 38 by means of the main heating module 36. In an operating state, this is at the
  • Control unit 40 controls in one operating state by means of the auxiliary heating module 38 a value of a further output power P Aux of Hilfshielmoduls 38 via another
  • control unit 40 controls by means of
  • Hilfshielmoduls 38 a value of the other output power P Aux over a duty cycle D of the switching units 16, 18 of Hilfshielmoduls 38.
  • D n is the duty cycle of the switching units 16, 18 of the auxiliary heating module 38 n, whose
  • Control unit 40 a provided by the auxiliary heating module 38 further output power P Aux to a maximum value by means of a duty cycle of substantially 0.5 (see Fig. 9). For a duty cycle of substantially 0.5, a first result
  • Auxiliary output power curve 86 having a maximum output power P Aux (see Fig. 8).
  • a lower value of the further output power P Aux results for one
  • Output power P Aux can be described in particular by a second auxiliary output power curve 88.
  • control unit 40 recognizes, for example by means of a
  • the control unit 40 operates in an operating state, the heating elements to be operated 58, 60.
  • the control unit 40 selects the heating elements to be operated 58, 60 with respect to a number and / or position of the set up Gargeschirre_aus. For example, the
  • Control unit the heating element and / or the further heating element when erected
  • control unit 40 sets an output power of the heating elements 58, 60 to be operated to a setpoint specified in particular by an operator.
  • the control unit 40 detects in an operating state, whether a predetermined target value of an output power is greater than a predetermined limit value. If a predetermined nominal value of an output power is less than or equal to a predetermined limit value, the control unit 40 excites the switching elements 20, 22, 24, 26 of the switching units 12, 14, 16, 18 of the heating module 36, 38 to operate its heating element 58, 60 is.
  • control unit 40 energizes the switching elements 20, 22, 24, 26 of the
  • FIG. 10 shows a time profile of an output power 92 of the switching units 12, 14 of the main heating module 36, a heating current 94 through the heating element 58 and a current output power 96 of FIG Main heating module 36 shown.
  • control unit could, by means of the configuration switching element, each additional heating element of each Hilfsluttermoduls means of the switching elements of
  • control unit could use at least one of the other configuration switching elements, the heating element and / or each operate further heating element by means of the switching elements of the switching units of each of the further Hilfshielmodule.

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

Abstract

L'invention concerne un dispositif pour appareil de cuisson (10), notamment un dispositif pour plaque de cuisson, comprenant un module de chauffage principal (36), qui présente une première et une deuxième unité de commutation (12, 14) comportant chacune un élément de commutation (20, 22) et une diode (28, 30) montée en parallèle à l'élément de commutation (20, 22) et qui est conçu pour contribuer au redressement d'une tension alternative, ledit dispositif pour appareil de cuisson comprenant en outre une unité de commande (40) conçue pour exciter, dans un premier état de fonctionnement, les éléments de commutation (20, 22) de la première et de la deuxième unité de commutation (12, 14) de façon à produire un courant de chauffage haute fréquence. L'objectif de l'invention est de fournir un dispositif pour appareil de cuisson de ce type possédant des propriétés améliorées de sorte qu'il présente une efficacité élevée. A cet effet, le dispositif pour appareil de cuisson (10) présente un module de chauffage auxiliaire (38) qui comprend une troisième et une quatrième unité de commutation (16, 18) comportant chacune un élément de commutation (24, 26) et une diode (32, 34) montée en parallèle à l'élément de commutation (24, 26), l'unité de commande (40) étant conçue pour exciter, dans au moins un autre état de fonctionnement, les éléments de commutation (24, 26) de la troisième et de la quatrième unité de commutation (16, 18) de façon à produire un autre courant de chauffage haute fréquence.
PCT/IB2015/058463 2014-11-06 2015-11-02 Dispositif pour appareil de cuisson WO2016071824A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015005055.8T DE112015005055A5 (de) 2014-11-06 2015-11-02 Gargerätevorrichtung

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ESP201431625 2014-11-06
ES201431625 2014-11-06

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WO2016071824A1 true WO2016071824A1 (fr) 2016-05-12

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DE (1) DE112015005055A5 (fr)
WO (1) WO2016071824A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654269A1 (de) * 1995-12-27 1997-07-03 Lg Electronics Inc Induktions-Kochgerät mit Steuerung für mehrere Ausgänge
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
EP2170010A2 (fr) * 2008-09-29 2010-03-31 Hitachi Ltd. Dispositif de chauffage à induction électromagnétique
EP2334142A1 (fr) * 2008-10-08 2011-06-15 Panasonic Corporation Dispositif de chauffage par induction
EP2582201A1 (fr) * 2011-10-11 2013-04-17 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage à induction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654269A1 (de) * 1995-12-27 1997-07-03 Lg Electronics Inc Induktions-Kochgerät mit Steuerung für mehrere Ausgänge
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
EP2170010A2 (fr) * 2008-09-29 2010-03-31 Hitachi Ltd. Dispositif de chauffage à induction électromagnétique
EP2334142A1 (fr) * 2008-10-08 2011-06-15 Panasonic Corporation Dispositif de chauffage par induction
EP2582201A1 (fr) * 2011-10-11 2013-04-17 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage à induction

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