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
  • H05B1/00—Details of electric heating devices
  • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
  • H05B1/0227—Applications
  • H05B1/0252—Domestic applications
  • H05B1/0258—For cooking
  • H05B1/0261—For cooking of food
  • H05B1/0266—Cooktops

Definitions

• the invention relates to a household appliance device according to the preamble of claim 1.
• Induction hobs are known, each having a switching unit which is provided to operate two induction heating circuits depending on the situation of a single phase or of two different phases.
• the object of the invention is in particular to provide a generic device with improved security.
• the object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
• the invention relates to a home appliance device, in particular one
• the switching unit at least a second
• Multiple switching component having at least two parallel switching elements and which is intended to at least a second of the at least two
• a "consumer” is to be understood in particular as an electrical component which is intended to supply electrical energy, in particular with an efficiency of at least 50%, advantageously at least 80%, preferably at least 90%, into another form of energy, in particular thermal energy, electromagnetic Field energy and / or
• the consumer is to
• a “multiple switching component” should be understood as meaning, in particular, a switching component which has at least two synchronous switching elements.
• a switching element should be understood to mean, in particular, an element which is intended to have at least one connection between at least two
• the switching element has at least one control contact, which is intended to define a switching state of the switching element.
• synchronous switching elements should be understood in particular switching elements whose switching states change simultaneously and / or are identical, wherein the switching elements in particular at the same time
• synchronous switching elements have a common control contact and / or are common
• Switching elements are understood whose eponymous switch contacts are interconnected.
• the first multiple switching component is intended to switch a supply and a derivative of at least the first consumer.
• the second multiple switching component is intended to switch a supply or a derivative of at least the second consumer.
• Energy source is to be understood in particular a terminal, which is intended to be connected to an operation of a source of electrical energy, in particular to a phase of a domestic power connection
• “different” energy sources are to be understood as two connection terminals which are intended to be connected to an operation with different sources of electrical energy, which are formed in particular by different phases of a domestic power connection
• Currents of different energy sources differ in particular in their phase positions, in particular by at least 20 °, advantageously at least 50 °, preferably at least 100 ° and in particular at most 180 °, and / or in their voltages and / or in their frequencies
• the second multiple switching component is arranged between the supply electronics and at least the second consumer, whereby a first component "between" a second and a third component is arranged, it should be understood in particular that in at least one
• an improved failure safety can be achieved, in particular an improved current carrying capacity can be achieved, in particular a reduced wear of switching contacts can be achieved.
• At least one of the at least two consumers is designed as an induction heating circuit.
• inverter preferably at least two, preferably in series, bidirectional unipolar switches, which are formed in particular by a transistor and a diode connected in parallel, and more preferably at least one parallel to the bidirectional unipolar switches switched snubber, the in particular, is formed by at least one capacitor.
• An "inductor” should in particular be understood to mean a component which is intended to convert alternating current generated by the heating frequency unit into an alternating magnetic field which is provided in a, in particular metallic, advantageously ferromagnetic heating means, in particular a cooking utensil and / or or a radiator, in particular a baking oven, by induction currents and / or
• At least one, in particular at least two, of the multiple switching components in particular at least the second, at least one relay having.
• all switching elements of a multiple switching component of a single relay which is in particular designed as a multi-pole changeover switch formed.
• a cost-effective and / or efficient design can be achieved.
• at least one of the multiple switching components comprises a semiconductor switching element, in particular a transistor and / or are formed by these, which in particular low switching times can be achieved.
• a semiconductor switching element in particular a transistor and / or are formed by these, which in particular low switching times can be achieved.
• Multiple switching component of at least one electromechanical switching element and at least one semiconductor switching element is formed, which can compensate in particular advantages and weaknesses of the different types of switching elements.
• the first and the second multiple switching component have identical switching elements.
• identical switching elements are meant in particular switching elements with an equal number of switching paths and / or with a same current carrying capacity .
• a simple construction can be achieved, In particular, a simple production can be achieved, since fewer different components have to be provided.
• the switching unit at least a third
• Multiple switching component which is provided in at least one operating mode to connect the third consumer with either the first or the second power source.
• the first multiple switching component is arranged in at least one operating mode between the second multiple switching component and the first consumer.
• the second multiple switching component is provided to prevent at least one operating state, in particular in a switched-off state, a power supply at least to the first consumer, in particular to all consumers.
• a component-saving design can be achieved.
• the domestic appliance device has at least one second switching unit which is provided in at least one operating mode To connect consumers at least partially with each other, the connection is different from an input-side connection of consumers.
• the second switching unit is provided to connect any two of the at least two consumers with each other.
• the second switching unit is provided to at least one heating frequency unit with different inductors and / or
• the second switching unit is provided to connect a plurality of heating frequency units with an inductor.
• a flexible distribution of available power can be achieved.
• a boost mode in which power is supplied to an inductor exceeding a maximum power of a single heating frequency unit may be enabled.
• the home appliance device has at least a first and a second connection electronic module, wherein the first
• Terminal electronics module is assigned to the first power source and the second terminal electronics module of the second power source is assigned and wherein the second terminal electronic module has a higher current carrying capacity than the first
• connection electronic module has a “higher current carrying capacity", as a first connection electronic module, should be understood in particular that components of the second
• Terminal electronics module are designed for a higher average current flow, in particular higher cable cross-sections, more efficient heatsink, adapted inductances and / or capacitances, as components of the first
• Connecting electronic module In particular, a component savings and / or cost savings can be achieved.
• a domestic appliance device in particular a hob device, having at least two consumers and at least one switching unit, wherein the switching unit has a first switching component which is intended to at least a first of the consumer with either a first or a second Energy source to connect, wherein the switching unit has at least a second switching component which is at least provided to connect the first switching component with the second power source.
• the second switching component is arranged electrically between the second energy source and the first switching component, is therefore intended to form a circuit that via the second energy source and via the first switching component leads to disconnect.
• the second switching component as a single switch, alternatively as
• the second switching component is arranged electrically between an input electronics connected to the second energy source and the first switching component.
• the second switching component is provided to connect at least one second of the consumers to the second energy source in at least one operating state.
• Fig. 1 shows a cooking hob according to the invention in a schematic view
• Fig. 3 shows an alternative cooking hob according to the invention.
• FIG. 1 shows a domestic appliance 10 designed as a hob, with a domestic appliance 10
• the home appliance device 12 is designed as a cooking device induction device.
• the home appliance device 12 has two consumers 20, 30.
• the consumers 20, 30 are designed as induction heating circuits.
• the consumers 20, 30 are intended to be operated independently of one another in a plurality of operating modes (FIG. 2).
• the domestic appliance device 12 has a switching unit 14 which has a first multiple switching component 40 and a second multiple switching component 50.
• the multiple switching components 40, 50 each have two switching paths 42, 44, 52, 54.
• the multiple switching components 40, 50 are each provided to simultaneously switch their two switching paths 42, 44, 52, 54.
• the multiple switching components 40, 50 are designed as two-pole switches.
• the multiple switching components 40, 50 are designed as relays.
• the first multiple switching component 40 is intended to be used in certain aspects
• Operating modes to connect a first of the consumer 20 with a first power source 16 wherein the switching paths 42, 44 are provided to each connect a supply and discharge lines of the first load 20 with the first power source 16.
• the first multiple switching component 40 is provided to connect the first consumer 20 to a second energy source 18 in further operating modes, the switching paths 42, 44 being provided in each case one of the supply and discharge lines of the first consumer 20 with the second energy source 18th connect to.
• the switching paths 52, 54 of the second multiple switching component 50 are parallel to each other. Output-side second contacts of the second multiple switching component 50 are unconnected, whereby the second multiple switching component 50 effectively forms a single-pole power switch.
• the second multiple switching component 50 is provided to one of two supply and discharge lines of the second consumer 30 with the second
• the first multiple switching component 40 is disposed between the second multiple switching component 50 and the first consumer 20 in operating modes in which the first multiple switching component 40 is provided to connect the first load 20 to the second power source 18. In operating states in which the first multiple switching component 40 is provided to connect the first load 20 to the second power source 18, the second multiple switching component 50 is provided to one of two Zu-
• the energy sources 16, 18 are each formed by terminals, which are intended to be connected to different phases of a domestic power connection, each having a nominal voltage of 230 V.
• connection electronic modules 60, 70 which are each assigned to one of the energy sources 16, 18.
• the connection electronics modules 60, 70 each have a filter unit 62, 72, which is intended to prevent a transmission of high-frequency interference signals, which are caused by the Indutationswenike, in the power sources 16, 18.
• the terminal electronics modules 60, 70 each further comprise a rectifier unit 64, 74, which are intended to rectify from the power sources 16, 18 derived alternating current.
• Connection electronics modules 60, 70 are arranged electrically between the energy sources 16, 18 and the switching unit 14.
• the first connection electronic module 60 which is assigned to the first energy source 16, has a lower current carrying capacity than the second connection electronic module 70, which is assigned to the second energy source 18.
• the first connection electronics module 60 has a current carrying capacity of 10 A.
• the second connection electronic module 70 has a current carrying capacity of 16 A.
• the first and second multiple switching components 40, 50 are formed by identical switching elements.
• the switching paths 42, 44, 52, 54 of the multiple switching components 40, 50 each have a current carrying capacity of 10 A.
• the consumers 20, 30 each have a maximum power consumption of 2300 W.
• the home appliance device 12 has a second switching unit 80, which
• the second switching unit 80 is provided for the heating frequency unit 22 of the first
• Consumer 20 with a first or a second inductor 24, 26 to operate.
• the first and second inductors 24, 26 are connected to common resonance capacitances 28.
• the second switching unit 80 is provided to operate the heating frequency unit 32 of the second consumer 30 with a third or a fourth inductor 34, 36.
• the third and fourth inductors 24, 26 are connected to common resonance capacitances 38. It is achievable a total output, which corresponds to a sum of the maximum power of the heating frequency units 22, 32, and the corresponding connection electronics module 60, 70 and / or energy sources 16, 18.
• the second switching unit 80 is provided to allow any two of the inductors 24, 26, 34, 36 simultaneously with different ones of the heating frequency units 22, 32, or to connect any of the inductors 24, 26, 34, 36 simultaneously with both Schufrequenzüen 22, 32 to a boost mode, wherein a maximum power of the connection electronics module 70 is exploitable, which is greater than a maximum power of the individual Schufrequenzappelen 22, 32nd ,
• Power source 18 must be connected, a terminal electronics module 60 of the first power source 16 can be made smaller, which costs can be reduced.
• a control unit ensures that the second switching unit 80 only interconnects consumers 20, 30, which are connected via the switching unit 14 to a same power source 18.
• the control unit is further provided in dependence on the inductors 24, 26, 34, 36 requested
• the control unit is provided in operating modes in which a heating power is required for a plurality of inductors 24, 26, 34, 36 of a load 20, 30 to operate them in a time-division multiplex method via the heating frequency unit 22, 32 of this load 20, 30.
• inductors 24, 26, 34, 36 are operated by different phases, but also a single inductor can be operated in a boost mode.
• FIG. 3 shows a further exemplary embodiment of the invention.
• FIG. 3 shows a domestic appliance device 12a with a switching unit 14a.
• Home appliance device 12a has a first, a second and a third
• the switching unit 14a comprises a first and a third multiple switching component 40a, 90a, which are provided
• the switching unit 14a has a second multiple switching component 50a which is provided to connect the second load 30a to the second power source 18a.
• Multiple switching components 40a, 50a, 90a each have two switching paths 42a, 44a, 52a, 54a, 92a, 94a.
• the switching paths 52a, 54a of the second multiple switching component 50a are connected in parallel with each other.
• the switching paths 42a, 44a, 52a, 54a, 92a, 94a of the multiple switching components 40a, 50a, 90a each have a current carrying capacity of 16A.
• the home appliance device 12a has a first connection electronic module 60a, which is assigned to the first energy source 16a.
• the first connection electronics module 60a has a current carrying capacity of 16 A.
• the home appliance device 12a has a second connection electronic module 70a, which is assigned to the second energy source 18a.
• the second connection electronic module 70a has a current carrying capacity of 25 A.
• the consumers 20a, 30a, 82a are each designed as induction heating circuits, each having a heating frequency unit 22a, 32a, 84a.
• the home appliance device 12a has a second switching unit 80a, which is provided to connect the consumers 20a, 30a, 82a with each other.
• the first load 20a has a first and a second inductor 24a, 26a, which are connected to common resonance capacitances 28a.
• the second load 30a has a third inductor 34a connected to resonant capacitances 38a.
• the third consumer 82a has a fourth inductor 86a connected to resonant capacitances 88a.
• the second switching unit 80a is intended to be used in operating modes, in two or three of the consumers 20a, 30a, 82a are connected to a same energy source 16a, 18a, any inductor 24a, 26a, 34a, 86a of these consumers 20a, 30a, 82a simultaneously with all Schufrequancenin clutch 22a, 32a, 84a this

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• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Induction Heating Cooking Devices (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=49448224

Family Applications (1)

Country Status (3)

Cited By (7)

Citations (4)

• 2013
  • 2013-08-13 PL PL13779926T patent/PL2888925T3/pl unknown
  • 2013-08-13 WO PCT/IB2013/056616 patent/WO2014033580A1/fr not_active Ceased
  • 2013-08-13 EP EP13779926.8A patent/EP2888925B1/fr active Active

Patent Citations (4)

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