• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    The invention relates to a domestic appliance device, in particular, to a cooking appliance device, with at least one inductor (18a-g), with at least one connection unit (53a-g) to which it is applied at least one operating voltage in at least one operating state, and with a control unit (38a-g) which is provided to supply at least one supply voltage for the inductor (18a-g) by switching the unit connection (53a-g). In order to increase efficiency, it is proposed that the control unit (38a-g) be provided to vary in at least one operating state at least the frequency of the supply voltage within the range of at least one period of the operating voltage. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2673132A1
    申请号:ES201631616
    申请日:2016-12-19
    公开日:2018-06-19
    发明作者:Tomas Cabeza Gozalo；Sergio Llorente Gil；Ignacio Millan Serrano
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    INDUCTION COOKING DEVICE DEVICE
    DESCRIPTION
    The present invention refers to a household appliance device, in particular, to an induction cooker device, with at least one inductor, with at least one connection unit to which at least one operating voltage is applied in at least one operating state, and with a control unit that is intended to supply at least one supply voltage for the inductor by switching the connection unit.
    Through the state of the art, a household device device with at least one inverter unit in half-bridge or full-bridge connection for the operation of several inductors by means of a multiplexer is already known.
    The present invention solves the technical problem of providing a generic household appliance device with better properties in relation to its efficiency, in particular, its cost efficiency and / or its energy efficiency. According to the invention, this technical problem is solved by means of an induction cooking device, preferably, a cooking field device, with at least one inductor, in particular, with at least two and, preferably, more inductors, with at least one connection unit to which at least one periodic operating voltage is applied in at least one operating state, and with a control unit that is intended to supply at least one supply voltage for the inductor by switching the connection unit, where the control unit is intended to vary in at least one operating state at least the frequency of the supply voltage within the range of at least one period of the operating voltage.
    The induction cooker device is at least a part, preferably, of at least one constructive subgroup, of an induction cooker. The device may also comprise the entire induction cooking apparatus. The induction cooker is preferably an induction cooker, in particular an induction cooker and / or, preferably, an induction cooker. The variable cooking field is a cooking field in which the inductors are arranged in a regular spatial arrangement under a cooking field plate, and partially or completely form at least one heating zone, preferably several heating zones variables, which / which
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    comprises (n) an area of the cooking field plate of preferably at least 10%, preferably, at least 30% and, particularly advantageously, at least 40% of the total surface of the field plate of cooking. The inductors are provided to form the heating zone depending on the position of a cooking battery positioned on the cooking field plate and to adapt it to the cooking battery. The inductor is an electrical component that in at least one state of cooking operation is provided to inductively partially or completely heat at least one cooking battery that is positioned on the cooking field plate. The inductor comprises at least one winding electric conductor, preferably in the form of a circular plate, which is traversed by the flow of a high frequency heating current in at least the cooking operating state. Preferably, the inductor is intended to transform electrical energy into an alternating magnetic field to cause eddy currents and / or magnetic inversion effects in the cooking battery that are transformed into heat. The connection element is an element designed to electrically connect a first terminal with at least a second terminal in at least a first connection state and, in at least a second connection state, to at least separate the first terminal from the Second terminal The connection element has at least one control terminal through which the connection state of the connection element is addressable, and is intended to, in a switching process, pass from one of the connection states to the other connection state in each case. Here, the connection element may be configured as any connection element, preferably, semiconductor connection element, which is appropriate to the person skilled in the art, for example, as a transistor, preferably, as FET (Field-Effect Transistor ), as MOSFET (Metal-Oxide Semiconductor Field-Effect Transistor) and / or as IGBT (Insulated-Gate Bipolar Transistor), preferably, as RC-IGBT (Reverse-Conducting Insulated-Gate Bipolar Transistor) and, particularly preferred, as HEMT transistor (High-Electron Mobility Transistor). The HEMT transistor is a high-mobility electron transistor, with a particularly high electron mobility, which rises at 25 ° C to at least 400 cm2 V-1s-1, preferably at least 600 cm2 V-1s -1, more preferably, at least 800 cm2 V'V1 and, particularly preferably, at least 1,000 cm2 V'V1. Likewise, HEMT transistors are the field effect transistors with modulation doped (MODFET), the two-dimensional electron gas field effect transistors (TEGFET), the selectively doped heterounion transistors (SDHT) and / or the transistors heterojunction field effect (HFET). The connection element has at least one first terminal, which is preferably a terminal of
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    source, a second terminal, which is preferably a drain terminal, and / or a control terminal, which is a gate terminal. At least one diode, in particular, a return diode, and / or at least one capacity, in particular, an attenuating capacity, of the home appliance device can be connected in parallel. The connection unit is a unit that has at least one connection element. The operating voltage is a voltage intended to transmit power within the home appliance device. The operating voltage has a frequency of at least 100 Hz and / or at least 120 Hz, is a rectified network voltage and preferably has a frequency that corresponds to twice the network frequency of the network voltage. The mains voltage is an electrical voltage, namely, alternating voltage, provided by an energy supplier in a current network, which is used to transmit electrical power. The mains voltage has at least a mains frequency of at least 50 Hz and / or 60 Hz, is rectified at least by a rectifier of the home appliance device, preferably by a bridge rectifier, and is partially or completely transformed into The operating voltage. The control unit is an electronic unit that is preferably integrated, at least in part, into a control and / or regulator unit of a domestic appliance. Preferably, the control unit comprises a calculation unit and, in addition to the calculation unit, a storage unit with a control and / or regulation program stored therein, which is intended to be executed by the unit Calculation Switching of the connection unit is a process of switching at least one connection element of the connection unit in which the connection element passes from one of the connection states to another connection state. The supply voltage is a voltage intended for the operation of at least one inductor. The supply voltage has a frequency that is greater than the frequency of the operating voltage. In particular, the frequency of the supply voltage is at least 1 kHz, preferably at least 10 kHz and, particularly preferably, at least 50 kHz and / or at most 200 kHz, preferably 150 kHz maximum and, particularly preferably, at 100 kHz maximum. The supply voltage is a pulse voltage. The temporal distance between two pulses coincides with the inverse frequency of the supply voltage. Each pulse corresponds to at least one switching process of the connection unit. The control unit is intended to transform the operating voltage at least partially into another voltage, preferably in the supply voltage, preferably by means of the connection unit, through at least one pulse modulation, in particular, at least one modulation of the pulse amplitude. The
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    The frequency of the supply voltage is varied within the range of at least one period of the operating voltage where the supply voltage has at least two different frequencies within the range of a period of the operating voltage. Also, the control unit is intended to vary at least the service cycle of the supply voltage in the operating state, where the pulse duration preferably remains constant. The duty cycle of the supply voltage is varied within the range of at least one period of the operating voltage where the supply voltage has at least two different duty cycles within the range of a period of the operating voltage. The pulse duration being constant, the service cycle variation is directly proportional to the frequency variation. The control unit is intended to vary the frequency and, in particular, the duty cycle, of the supply voltage through a pulse modulation, in particular, a pulse duration modulation. and / or a modulation of the pauses between the impulses, the operating voltage and / or an inverter voltage.
    Through the embodiment according to the invention, an induction cooking device can be provided with better properties in relation to its efficiency, in particular, its cost efficiency and / or its energy efficiency. Advantageously, the variable start-up of the inductors can be improved, and their activation can occur more quickly.
    Likewise, it is proposed that the control unit be provided to avoid the overload of at least one electrical component, in particular, of the inductor and / or of the electrical components that together with the inductor form an oscillating circuit such as a capacity of the home appliance device, by varying the frequency. The overload is an overvoltage applied to at least one electrical component, and / or the overcurrent that flows through at least one electrical component, and that these can cause damage, for example, a short circuit, of the electrical component. Specifically, the control unit is intended to vary the frequency of the supply voltage by at least a partial section of the operating voltage in which an overload is applied to at least one electrical component in an operating state that is not present. Such a variation of the frequency. Also, the control unit is intended to take into account during a activation a characteristic curve of the power stored in a calculation unit, where the characteristic curve of the power is dependent on the degree of coverage of the inductor and / or the material of a cooking battery that is arranged on the inductor. From
    In this way, an overload can be prevented from damaging the electrical components.
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    Likewise, component costs can be reduced, since they no longer have to be configured to capture power peaks. In addition, the useful life of the household appliance device can be advantageously increased.
    Likewise, it is proposed that the control unit be provided to attenuate electromagnetic radiation by varying the frequency. In this way, the electromagnetic compatibility can be advantageously improved, which can be adapted independently of the power required for a cooking process. Also advantageously, it is possible to dispense with additional components to reduce electromagnetic radiation, such as additional shielding.
    In a preferred embodiment of the invention, it is proposed that the home appliance device comprises at least one other inductor, where the control unit is provided to supply at least one other supply voltage for the other inductor by switching the unit of connection and to vary in at least one operating state at least another frequency of the other supply voltage within the range of at least one period of the operating voltage. Thus, flexibility can be increased.
    In order to further improve the activation of the inductors, it is proposed that the supply voltage and the other supply voltage be at least partially, preferably, at least in large part and, in a particularly preferred manner, totally complementary to each other. yes so that in the temporal progression of the supply voltage and the other supply voltage they are complementary to each other within the range of at least one period, preferably for a large part of the period and, particularly preferably, throughout the period , of the operating voltage. The supply voltage has a local maximum at a point in time, in particular, a voltage impulse, in which the other supply voltage has a local minimum, in particular, it does not present any voltage impulse.
    In an embodiment of the invention, it is proposed that the connection unit present
    at least one inverter unit, which is intended to generate at least one voltage of
    inverter from the operating voltage, and at least one connection unit of
    variation, which is intended to generate at least the supply voltage and, of
    preferred way, also the other supply voltage, from the inverter voltage.
    The inverter unit is a unit intended to supply and / or generate a current of
    high frequency heating, preferably with a frequency of at least 1 kHz, of
    more preferably, at least 10 kHz and, advantageously, at least 20 kHz,
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    to start the inductor. The variation connection unit is a unit intended to apply the supply voltage alternately to the inductor and the other inductor. The variation connection unit has at least one additional connection element, which is connected with at least one inductor in at least one connection state. Also, the connection element can be connected to several inductors in a manner dependent on the connection state. The variation connection unit may comprise several connection elements. Preferably, the connection element is connected to the inductor in a first connection state and, in a second connection state, with the other inductor. In this way, the transformation of the supply voltage and the variation thereof can occur separately.
    In a particularly preferred embodiment of the invention, it is proposed that the control unit be provided to vary the supply voltage in the operating state by means of the variation connection unit. Specifically, the control unit is intended to transform the inverter voltage at least partially into the supply voltage and, preferably, into the other supply voltage, by means of the variation switch through a pause modulation between the impulses Thus, a complementary frequency variation can be advantageously achieved in a particularly simple manner.
    In another embodiment of the invention, it is proposed that the home appliance device comprises at least one heating matrix having a quantity N x M of heating matrix elements, wherein the connection unit has at least an amount N of row connection elements and at least a quantity M of column connection elements, where, for any i of 1 to N and any j of 1 to M with a total amount N + M of row connection elements and elements of column connection greater than 2, it is applicable that the heating matrix element i, j-th comprises at least one inductor i, j-th and is connected both with the i-th row connection element and with the element of jth column connection. Specifically, it is always applicable that the total number N + M of column connection elements and row connection elements is greater than 2 if the quantity N of row connection elements and / or the quantity M of connection elements of column is greater than 1. The row connection element ”and / or column connection element are connection elements that are assigned to rows and / or columns of the grid of an arrangement as a scheme of connections and / or that define this provision. The arrangement as a connection scheme is different with respect to a spatial arrangement in which the
    column connection elements and row connection elements may be
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    arranged in a preferred arrangement by the person skilled in the art and particularly compact. The row connection elements are connected with a common reference potential to them. The common reference potential for the row connection elements is an operating potential of the operating voltage with which the household appliance device is operated. Here, the common reference potential to the row connection elements is a ground potential. The column connection elements are connected with another reference potential common to them. The other reference potential common to the column connection elements is another operating potential of the operating voltage. The other reference potential common to the column connection elements differs from the ground potential. The operating voltage is applied between the reference potential common to the row connection elements and the other reference potential common to the column connection elements. At least one ith row connection element and at least one jth column connection element, which are interconnected in a complete bridge topology or, preferably, in a half bridge topology, serve as connection elements inverter and together partially or completely and, preferably, completely, an inverter unit i, j-th of the household appliance device. The home appliance device comprises a quantity N x M of inverter units. The term "inverter unit i, jth" includes the concept of a unit that is intended to supply and / or generate a high-frequency heating current, preferably with a frequency of at least 1 kHz, more preferably, of at least 10 kHz and, advantageously, at least 20 kHz, to operate the inductor i, j th The control unit of the domestic appliance device is intended to activate the row connection elements and the elements of column connection In a particularly advantageous way, the control unit is provided to activate the row connection elements and the column connection elements as inverter connection elements, so that a smooth switching process occurs between at least a first connection state and a second connection state of the connection elements that is, by means of a switching process with a very small loss of power, which s and occur if the switching process is largely or completely without current and / or, preferably without voltage., also known by its English name "zero current switching (ZCS)", in a smooth switching process in the that the current that flows directly before a switching process in the heating matrix element i, j-th and, in particular, in the inductor i, j-th, is approximate or exactly negligible, in particular approximately zero. In particular, the control unit is provided in the process of switching without current to switch the elements of
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    connection with a switching frequency that is less than or equal to the resonant frequency of the heating matrix element i, jth. Process also known by its English name "zero voltage switching (ZVS)", of soft switching in which the voltage to be applied and / or falling directly before a switching process in the heating matrix element i, j- th and, in particular, in the i, j-th inductor, be approximate or exactly negligible, in particular, approximately zero. In particular, the control unit is provided in the switching process largely or completely without voltage to switch the connection elements with a switching frequency that is greater than the resonant frequency of the heating matrix element i, j -th The minimum value is a value that is less than a maximum operating value by a factor of at least 10, preferably, at least a factor of 50, preferably, a factor of at least 100 and, particularly preferably, a At least 500 factor. The heating matrix is the grid of an arrangement as a connection scheme of the heating matrix elements i, j-ths. The heating matrix element i, jth is connected at least indirectly and, preferably, directly, both with the ith row connection element and with the jth column connection element. At least two electrical components are connected to each other directly without presenting any other electrical component that modifies the phase between a current and a voltage and / or, preferably, the current itself and / or the voltage itself. Particularly preferably, the i, jth inductor has at least one, in particular, exactly one, i, jth terminal, which is connected with both the ith row connection element, in particular, with the first terminal of the ith row connection element, as with the jth column connection element, in particular, with the second terminal of the jth column connection element. In this way, the amount of connection elements can be reduced, since the connection elements partially drive several inductors, so that component costs can be saved. Also, different inductors of the heating matrix can be advantageously activated individually, thereby reducing energy consumption, as well as the electric field of dispersion. Particularly advantageously, the aforementioned arrangement makes it possible for the connection elements to be switched smoothly and largely or completely without current or to a large extent or completely without voltage, thereby reducing losses by commutation. In addition, an advantageous detection of the cooking batteries is possible, and additional components can be dispensed with, for example, sensor elements.
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    In order to reduce the necessary construction space for the inductors and to achieve an efficient spatial arrangement of the inductors for a cooking operation of the cooking batteries, it is further proposed that the inductors be arranged spatially in an inductor array, the whichever is different with respect to the heating matrix in relation to the proportions of proximity of at least two of the inductors relative to each other, in which the inductors are arranged as a wiring diagram. The inductor matrix is the grid of the spatial arrangement of the inductors under a cooking field plate of the home appliance device.
    In a preferred embodiment of the invention, it is proposed that, in the inductor matrix, the inductors are spatially arranged such that at least one i, jth inductor, for which i = j is applicable in the matrix of heating, be adjacent to at least one inductor i, jth, for which i ^ j is applicable in the heating matrix. The expression "inductor i, j-th, for which i = j is applicable in the heating matrix" includes the concept of a diagonal inductor that is arranged on a diagonal of the heating matrix. The expression "inductor i, j-th, for which i ^ j is applicable in the heating matrix ”includes the concept of an inductor external to the diagonal which is arranged outside a diagonal of the heating matrix. Preferably, between at least two inductors i, j-th, for which i = j is applicable in the heating matrix, at least one inductor i, j-th is provided for which i ^ j is applicable in the heating matrix Particularly preferably, an inductor i, jth for which i = j is applicable in the heating matrix is surrounded, preferably annularly surrounded, by several, in particular, by at least three, preferably, by at least four and , particularly preferably, by at least five inductors i, j-th for which i ^ j is applicable in the heating matrix. Alternatively, it is conceived that the heating matrix does not have heating matrix elements i, j-ths and, in particular, inductors i, j-ths, for which i = j is applicable in the heating matrix. In this way, the activation of the domestic appliance device can be simplified to a greater extent, since simultaneous induction of diagonal inductors can be avoided.
    In a particularly preferred embodiment of the invention, it is proposed that, in the inductor matrix, inductors i, j-ths of equal i or of equal j are adjacent to each other and, preferably, directly adjacent to each other. Specifically, the inductors i, j-th of equal i or equal j are arranged in the same row or column of the matrix of
    heating. Also, the inductors i, j-th of equal i or j are arranged grouped
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    each other and form at least one heating zone for a partially or completely cooking battery, preferably, largely or completely and, particularly preferably, completely. Also preferably, inductors i, j-th of different i or j form different heating zones at least partially. In this way, the activation of the home appliance device can be simplified to a greater extent, since in a particularly advantageous way the simultaneous operation of at least two inductors i, j-ths for which i = j can be applied in the heating matrix
    It is conceived that the total N + M amount of column connection elements and row connection elements is less than or equal to the N x M amount of heating matrix elements. In order to drive a quantity N x M of heating matrix elements with the lowest possible total amount N + M of column connection elements and row connection elements and, advantageously, thus reducing the costs related to components, it is proposed that the quantity N of row connection elements be equal to the quantity M of column connection elements. Then, the heating matrix is configured as a square matrix.
    In order to prevent unwanted activation of at least two diagonal inductors, it is proposed that the total amount N + M of column connection elements and row connection elements be greater by one than the quantity N x M of elements of heating matrix. For this case, the heating matrix is configured as a vector, preferably as a row vector, if the quantity N of row connection elements is equal to 1, or as a column vector, if the quantity M of column connection elements It is equal to 1.
    Likewise, it is proposed that the heating matrix element i, jth present at least one diode i, jth, whereby the inductor i, jth is connected at least with the connecting element of row i- thymus Specifically, the i, jth diode is connected to the jth terminal between the jth inductor and the ith row element. The ith jth diode allows the current to flow in the direction of the ith row connection element and, preferably, blocks the flow of said current in the direction of the ith jth inductor. In the case that the number of row connection elements is equal to 1, the ith jth diode can be dispensed with. In addition, a return diode and / or a dimmer capacitor of the home appliance device could be connected in parallel to the jth column connection element. Also advantageously, the heating matrix element i, j-th has at least one other diode i, j-th, whereby the
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    inductor i, j-th is connected at least with the j-th column connection element. In particular, the other diode i, jth is connected to terminal i, jth between the inductor i, jth and the jth column connection element. The ith jth diode allows the current to flow in the direction of the ith jth inductor and, preferably, blocks the flow of said current in the direction of the jth column connecting element. In addition, in the case that the quantity M of column connection elements is equal to 1, diode i, jth can be dispensed with. In addition, a return diode and / or an attenuator capacitor could be connected in parallel to the ith row connection element. In this way, the current can be prevented from flowing uncontrollably between various heating array elements.
    Likewise, it is proposed that the heating matrix element i, j-th present at least one capacity i, j-th, whereby the inductor i, j-th is connected with at least one reference potential common to the elements of heating matrix. The common reference potential for heating matrix elements is the operating potential. Likewise, the heating matrix element i, j-th has at least one other capacity i, j-th, whereby the inductor i, j-th is connected with at least one other reference potential common to the matrix elements of heating. The other common reference potential for heating matrix elements is the other operating potential. The i, jth capacity comprises at least one capacitor. Preferably, the capacity may comprise several capacitors, in particular, a capacitor network, which is preferably composed of capacitors connected in series and / or connected in parallel with each other at least partially. In addition, the capacity can be adjustable. The inductor i, j-th has at least one other terminal i, j-th, which is connected both with the capacity i, j-th and with the other capacity i, j-th. In this way, the frequency of an oscillating circuit of the home appliance device can be advantageously adjusted to the field of application by means of the corresponding choice of capabilities.
    Likewise, it is proposed that the heating matrix comprises an amount N of row diodes, where the ith row diode connects at least the ith row connection element with at least one other reference potential, in particular, the another operating potential, common to the row connection elements. Likewise, it is proposed that the heating matrix comprises a quantity M of column diodes, where the jth column diode connects at least the jth column connection element with at least one reference potential, in particular, the operating potential, common for
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    the column connection elements. In this way, a particularly smooth switching process can be achieved.
    In addition, it is proposed that, if the operating voltage adopts an approximate or exactly negligible value, the control unit is provided in at least one cooking battery recognition mode to determine at least one electrical parameter originating from at least one of the inductors. The electrical parameter is preferably correlated with the electromagnetic coupling of the inductor with a cooking battery, in particular with the degree of coverage and / or the material of the cooking battery. At least by means of the electrical parameter, the control unit can deduce the electromagnetic coupling of the inductor with the cooking battery and, preferably, determine it. The electrical parameter corresponds to a direct control variable. Advantageously, the electrical parameter is an electrical signal and / or electronic signal measured by a sensing unit of the home appliance device, and is preferably the frequency, amplitude and / or voltage phase that is applied to the inductor and / or the current flowing through the inductor. In this way, the flexibility of the home appliance device can be increased, since the cooking batteries can be detected.
    Likewise, it is proposed that the control unit be provided in the cooking battery recognition mode to first load the i, jth inductor and then, if the operating voltage adopts an approximate or exactly minimal value, to discharge it again. Advantageously, the control unit is provided in the cooking battery recognition mode to detect a characteristic curve of a discharge process of the i-jth inductor and, by means of this characteristic curve, determine the electrical parameter. The characteristic curve is the temporal evolution of the electrical parameter. Specifically, the control unit is intended to determine the electrical parameter by adapting a comparative characteristic curve to the characteristic curve, in particular, based on parameters for the generation of the comparative characteristic curve. Thus, the discharge of the inductor can be carried out in a simple way, avoiding a short circuit with other electrical components.
    The household appliance device described is not limited to the application or to the embodiment described above, and may in particular have a number of elements, components, and particular units that differ from the amount mentioned herein, as long as the purpose of fulfilling the functionality described here is pursued. Preferably, in the ranges of values indicated in this
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    Description are also considered disclosed and usable in the desired way those values that are within the limits mentioned.
    Other advantages are taken from the following description of the drawing. Examples of embodiment of the invention are shown in the drawing. The drawing, description and claims contain numerous features in combination. The person skilled in the art will consider the characteristics advantageously also separately, and will gather them in other reasonable combinations.
    They show: Fig. 1
    Fig 2
    Fig. 3
    Fig. 4
    Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12
    a domestic appliance with a domestic appliance device, in schematic top view,
    wiring diagram of a part of the home appliance device with a heating array,
    a part of the home appliance device with an array of inductors, in schematic top view,
    schematic flow chart of a procedure for putting the home appliance device into operation with a cooking battery recognition mode;
    different graphs with typical progressions of the current and / or of the voltage during the operation of the domestic appliance device, another domestic appliance device, in a diagrammatic representation,
    another device of domestic appliance, in a representation as a connection scheme,
    another device of domestic appliance, in a representation as a connection scheme,
    another device of domestic appliance, in a representation as a connection scheme,
    another device of domestic appliance, in a representation as a connection scheme,
    another device of domestic appliance, in a representation as a connection scheme,
    another preferred method for directing the home appliance device and, in particular, the other home appliance devices of Figures 6 to 11,
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    Fig. 13a-b
    Fig. 14 Fig. 15 Fig. 16a-d
    Fig. 17a-d
    Fig. 18a-d
    Fig. 19
    different graphs with typical progressions of current, voltage and power when addressing the domestic appliance device according to the procedure of Figure 12,
    different graphs with other power progressions when the household appliance device is directed according to the procedure of figure 12, different graphs with other power progressions when the household appliance device is directed according to the procedure of figure 12, different graphs with curves power characteristics of a first firing battery to direct the home appliance device according to the procedure of Figure 12,
    different graphs with characteristic curves of the power of a second cooking battery to direct the home appliance device according to the procedure of figure 12,
    different graphs with characteristic curves of the power of a third cooking battery to direct the home appliance device according to the procedure of Figure 12, and
    another device of domestic appliance in a representation as a connection scheme, which is intended to execute the procedure of Figure 12.
    Figure 1 shows a domestic appliance 48a with a domestic appliance device in schematic top view. In the present case, the domestic appliance 48a is made as a cooking appliance, in particular, as a cooking field, in particular, as a variable induction cooking field. Alternatively, the domestic appliance 48a can be made like any domestic appliance 48a, namely, cooking appliance, for example, as a microwave oven or induction cooking oven, which differs from a cooking field and is advantageous to the expert in The matter.
    The household appliance has a cooking field plate 50a and is intended to drive at least one cooking battery that is arranged in any position on the cooking field plate 50a. The cooking field plate 50 comprises preferred heating zone positions 52a, which indicate the preferred positions for the cooking batteries. In the present case, the cooking field plate 50a has six preferred heating zone positions 52a. To obtain a better overview, only one of the preferred heating zone positions 52a is accompanied by a reference symbol. 50a cooking field plate
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    it may have any number of preferred heating zone positions 52a, or also not having preferred heating zone positions 52a.
    Figure 2 shows a wiring diagram of a part of the household appliance device. The home appliance device comprises at least a quantity N of row connection elements 10a and at least a quantity M of column connection elements 12a. The home appliance device comprises at least one heating matrix 14a. The heating matrix 14a has, for any i of 1 to N and any j of 1 to M, at least one heating matrix element 16a i, jth. The heating matrix 14a has a quantity N x M of heating matrix elements 16a. The total amount N + M of row connection elements 10a and column connection elements 12a is greater than 2, and is less than or equal to the amount N x M of heating matrix elements 16a. In the present case, the home appliance device has an amount of N = 8 row connection elements 10a and an amount of M = 3 column connection elements 12a. In addition, the home appliance device has an amount of N x M = 24 heating matrix elements 16a. However, it is also conceived that N and / or M may be any other natural number that the person skilled in the art considers particularly advantageous. Alternatively or additionally, the quantity N may be chosen equal to the quantity M or in such a way that the total quantity N + M is greater by one than the quantity N x M.
    In the following, an arrangement by way of connections of the electrical components of the domestic appliance device by means of the i-th, j-th, and i-th electrical components of the home appliance device is explained as an example. The following explanations can be extended to other equivalent electrical components.
    The 10th i-th row connection element is made as a transistor and has a first terminal. The first terminal is a source terminal. The first terminal of the 10th row connection element 10th is connected to the heating matrix element 16th, jth. The 10th row connection element i has a second terminal. The second terminal is a drain terminal. The second terminal of the 10th row connection element 10th is connected with a reference potential 30a common to the row 10a connection elements. The reference potential 30a common to the row connection elements 10a is the operating potential of an operating voltage and, preferably, a ground potential. The home appliance has a rectifier, which transforms a mains voltage into the operating voltage. The
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    Operating voltage is here the voltage that is applied between the reference potential 30a common to the row connection elements 10a and another reference potential 32a common to the column connection elements 12a. The 10th row connection element i has a control terminal. The control terminal is a gate terminal and is connected to a control unit 38a of the home appliance device.
    The j-th column connection element 12 is made as a transistor and has a first terminal. The first terminal is a source terminal. The first terminal of the j-th column connection element 12a is connected to the other reference potential 32a common to the column connection elements 12a. The other reference potential 32a common to the column connection elements 12a is the other operating potential. The j-th column connection element 12th has a second terminal. The second terminal is a drain terminal. The second terminal of the jth column connection element 12a is connected to the heating matrix element 16a j, jth. The j-th column connection element 12th has a control terminal. The control terminal is a gate terminal and is connected to the control unit 38a of the home appliance device.
    The 10th row connection element 10th and the 12th column connection element 12 are arranged in a half bridge topology. It is conceived that the household appliance device comprises other row connection elements 10a-th and other column connection elements 12a-th, so that the row connection elements 10a-th, the other connection elements of row 10a-th, the j-th column connection elements 12th, and the other column-12th connection elements may be arranged in a complete bridge topology.
    The row connection element 10th and the column connection element 12th serve as inverter connection elements. The 10th row connection element 10th and the 12th column connection element 12th together form at least one inverter unit 54th, jth of the household appliance. The home appliance device comprises a quantity N x M of inverter units 54a. The control unit 38a is provided to activate the 10th i-th row connection element and the jth th column 12th connection element as inverter connection elements. Specifically, the control unit 38a activates the 10th row connection element 10th and the 12th column connection element 12 such that a smooth switching process occurs between at least a first connection state and one second
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    connection status of the 10th i-th row connection element and the 12th jth column connection element.
    The heating matrix element 16a i, jth has at least one inductor 18a i, jth. The jth inductor 18a is connected to both the 10th row connection element 10th and the 12th column connection element 12 and has at least one jth terminal 20th. The terminal 20a i, jth is connected both with the connecting element of row 10th, in particular, with the first terminal of the connecting element of row 10th, and with the connecting element of column 12a jth, in particular, with the second terminal of the column connection element 12th jth. In the heating matrix 14a, N x M inductors 18a are arranged in total as a connection scheme.
    In addition, the heating matrix element 16a i, jth has at least one diode 24a i, jth. By means of diode 24th, jth, the inductor 18a, jth is connected at least with the connecting element of row 10th. The first terminal of diode 24a i, jth is connected to terminal 20a i, jth of inductor 18a i, jth. The second terminal of diode 24a, jth is connected to the first terminal of the 10th row connection element i. The diode 24a i, j allows the current to flow in the direction of the connecting element of row 10th and blocks it in the direction of the inductor 18a, jth.
    Also, the heating matrix element 16a i, jth has at least one other diode 26a j, jth. By means of the other diode 26a, jth, the inductor 18a, jth is connected at least with the column connection element 12a jth. The first terminal of the other diode 26a, jth is connected to the terminal 20a, jth of the inductor 18a, jth. The second terminal of the other diode 26a i, jth is connected to the second terminal of the column connection element 12a j. The other diode 26a i, j allows the current to flow in the direction of the inductor 18a i, jth and blocks it in the direction of the column connection element 12a j.
    The heating matrix element 16a i, jth also has at least a capacity 28a i, jth. The 28th, jth capacity is a capacitor. Through the capacity 28a i, jth, the inductor 18a i, jth is connected at least with a reference potential 30a common to the heating matrix elements 16a. The reference potential 30a common to the heating matrix elements 16a is the operating potential. The first terminal of capacity 28a i, j-th is connected to another
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    terminal 42a i, jth of the inductor 18a i, jth. The second terminal of capacity 28a i, jth is connected to the common reference potential 30a.
    In Fig. 3, a top view is shown on a part of the home appliance device with an inductor array 22a. In the present case, the inductors 18a i, just the same i have the same scratch in Figure 3. The inductors 18a for which i = j is applicable in the heating matrix 14a are additionally marked with a dot. The inductors 18a, jth are spatially arranged in the inductor matrix 22a. The matrix of inductors 22a is different with respect to the heating matrix 14a in relation to the proportions of proximity of at least two of the inductors 18a i, j-th relative to each other. In the matrix of inductors 22a, the inductors 18a i, j-ths of the same ioj are adjacent to each other, and the inductors 18a i, j-ths are spatially arranged such that at least one inductor 18a i, jth for which is applicable i = j in the heating matrix 14a is adjacent to at least one inductor 18a i, jth for which i ^ j is applicable in the heating matrix 14a. An inductor 18a i, jth for which i = j is applicable in the heating matrix 14a is surrounded, preferably annularly surrounded, by several, in particular, by at least three, preferably, by at least four and, so particularly preferred, for at least five inductors 18a i, jths for which i ^ j is applicable in the heating matrix 14a.
    Figure 4 shows a procedure for directing the home appliance device. In the present case, the procedure is described by means of an exemplary operation of the electrical components with the indices i = 1 and i = 2, as well as the electrical components with the indices j = 1 and j = 2. The procedure it can be applied equivalently to any other i-th electrical component and j-th electrical component.
    The method comprises an operating step 56a. In the operating step 56a, the control unit 38a activates the row connection element 10a 2-th and the column connection element 12a 1-th as inverter connection elements. The row connection element 10a 2-th and the column connection element 12a 1- th alternately pass from a first connection state to a second connection state by a switching process. The row connection element 10a 2- th and the column connection element 12a 1-th connect the heating matrix element 16a 2,1-th, in particular, the inductor 18a 2,1-th, alternately with reference potential 30a common to row connection elements 10a
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    and with the other reference potential 32a common to the column connection elements 12a. The row connection element 10a 2-th and the column connection element 12a 1-th generate a supply voltage with which the heating matrix element 16a 2,1-th is operated, in particular, the inductor 18a 2,1-th. A heating current flows through the heating matrix element 16a 2,1-th, in particular, the inductor 18a 2,1-th.
    The method comprises a cooking battery recognition mode 40a. The cooking battery recognition mode 40a is temporarily developed together with the operating step 56a. Alternatively, the cooking battery recognition mode 40a can be carried out independently of the operating step 56a. The cooking battery recognition mode 40a comprises a charging step 58a. In the loading step 58a, the control unit 38a activates the column connection element 12a 1- th such that it passes to a first connection state. The heating matrix element 16a 1,1-th, in particular, the capacity 28a 1,1-th, is charged by the column connection element 12a 1-th in the other reference potential 32a common to the elements of column connection 12a. The control unit 38a activates the 10th-10th row connection element such that it is in a second connection state and, therefore, does not establish any conductive connection with the reference potential 30a common to the elements. of row connection 10a. No current flows, so that the charged voltage is maintained. Similarly, the heating matrix element 16a 2,2-th, in particular, the capacity 28a 2,2-th, is charged with the reference potential 30a common to the connecting elements of row 10a, provided by the 10th-2nd row connection element. In the loading step 58a, the control unit 38a activates the connecting element of row 10a 2-th such that it passes into a second connection state. The heating matrix element 16a 2,2-th, in particular, the capacity 28a 2,2-th, is charged to the reference potential 30a common to the row connecting elements 10a. The control unit 38a activates the column connection element 10a 2-th such that it is in the second connection state and, therefore, no conductive connection is established with the other reference potential 32a common to the column connection elements 12a. No current flows, so that the charged voltage is maintained.
    The cooking battery recognition mode 40a comprises a discharge passage 60a. The discharge step 60a is executed during the operating step 56a. The operating voltage that is applied between the 10th-2nd row connection element and the
    12a 1-th column connection element varies over time. If the tension of
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    operation adopts an approximate or exactly negligible value, the discharge step 60a is carried out. The control unit 38a discharges the heating matrix element 16a 1,1-th. For this, the control unit 38a connects the row 10a-th connection element in the first connection state. The row connection element 10a 1-th connects the heating matrix element 16a 1,1-th, in particular, the capacity 28a 1,1-th, with the reference potential 30a common to the row connection elements 10th The heating matrix element 16a 1,1-th, in particular, capacity 28a
    1.1- th, it is downloaded. A characteristic curve 46a of the discharge process is detected, as well as another characteristic curve 47a of the discharge process.
    The cooking battery recognition mode 40a further comprises a determination step 62a. In the determination step 62a, a comparative characteristic curve is adapted to the characteristic curve 46a detected in the discharge passage 60a and, in particular, to the other characteristic curve 47a. From the parameters of the comparative characteristic curve, the quality of the electromagnetic coupling is determined. From the quality of the electromagnetic coupling, the degree of coverage between the inductor 18a 1,1th and a cooking battery and / or the cooking battery material coupled with the inductor 18a 1,1th is also determined .
    Figure 5a shows a graph of the procedure for directing the home appliance device. On the axis of abscissa 64a the time is plotted. The tension is drawn on the ordinate axis 66a. A first voltage curve 68a shows the temporal progression of the supply voltage that is applied to the heating matrix element 16a 2,1-th. A second voltage curve 70a shows the temporal progression of the voltage that is applied to the heating matrix element 16a 1,1-th. A third voltage curve 72a shows the temporal progression of the voltage that is applied to the heating matrix element 16a 1,2-th. A fourth voltage curve 74a shows the temporal progression of the voltage that is applied to the heating matrix element 16a
    2.2- th. A fifth voltage curve 76a shows the temporal progression of the operating voltage. In Figure 5b, the curves 68a, 70a, 72a, 74a, 76a are represented again. In figure 5b, an area of the graph of figure 5a is shown around the point at time T, in which the operating voltage assumes an approximate or exactly negligible value. In Figure 5b, the abscissa axis 64a has a more precise scale than in Figure 5a.
    Figure 6a shows a graph of the procedure for directing the home appliance device. On the axis of abscissa 64a the time is plotted. On the axis of ordinates
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    66a is drawn current. A first current curve 80a shows the temporal progression of the heating current flowing through the heating matrix element 16a 2,1-th. A second current curve 82a shows the temporal progression of the current flowing through the heating matrix element 16a 1,1th. A third current curve 84a shows the current flowing through the heating matrix element 16a 1,2-th. A fourth current curve 86a shows the current flowing through the heating matrix element 16a 2,2-th. In Figure 6b, an area of the graph of Figure 6a is shown around the point at time T, in which the operating voltage assumes an approximate or exactly negligible value. In Figure 6b, the abscissa axis 64a has a more precise scale than in Figure 6a.
    The second current curve 82a and the second voltage curve 70a show the loading passage 58a of the heating matrix element 16a 1,1-th. In the loading passage 58a, the heating matrix element 16a 1,1-th is loaded with the other reference potential 32a common to the column connection elements 12a. In the discharge passage 60a, as soon as the operating voltage, the fifth voltage curve 76a, adopts an approximate or exactly minimal value, the heating matrix element 16a 1,1th is discharged. A current flows corresponding to the second current curve 82a. The second voltage curve 70a is detected. The second voltage characteristic curve serves as the characteristic curve 46a to determine the electrical parameter. The second current curve 82a is detected. The second current curve 82a serves as another characteristic curve 47a to determine the electrical parameter.
    In Figures 7 to 11 and 19, other embodiments of the invention are shown. The following description and the drawings are essentially limited to the differences between the embodiments, where, in relation to components indicated in the same way, in particular, in terms of components with the same reference symbols, it can also be basically referred to the drawing and / or the description of the other embodiment of Figures 1 to 6. For the differentiation of the examples of embodiment, the letter "a" is postponed to the reference symbols of the embodiment of Figures 1 to 6. In the embodiments of figures 7 to 11 and 19, the letter "a" has been replaced by the letters "b" to "f" and "g".
    Figure 7 shows a wiring diagram of another embodiment of the invention. This other embodiment is different from the previous embodiment at least basically in relation to the quantity N and the quantity M. In the present case,
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    the quantity N of row connection elements 10b is equal to the quantity M of column connection elements 12b. Also, the total amount N + M of row connection elements 10b and column connection elements 12b is less than or equal to the amount N x M of heating matrix elements 16b. In the present case, the quantity N = 4 and the quantity M = 4. In this case, at least the 10th row connection element i, in particular, all the row connection elements 10b, and / or the minus the j-th column connection element 12b, in particular, all the column connection elements 12b, is (s) made as switches, preferably relays. Also, the home appliance device has an additional inverter unit 54b. The inverter unit 54b has a first inverter element 88b and a second inverter element 89b. The inverting elements 88b, 89b are made as transistors. The inverter element 88b connects the row connection elements 10b with a reference potential 30b common to the row connection elements 10b. The other inverter element 89b connects the column connection elements 12 with another reference potential 32b common to the column connection elements 12b.
    Figure 8 shows a wiring diagram of another embodiment of the invention. This other exemplary embodiment differs from the previous embodiment at least basically in relation to the quantity N and the quantity M. The total amount N + M of row connection elements 10c and column connection elements 12c is greater in one that the quantity N x M of heating matrix elements 16c. In the present case, the quantity N = 2 and the quantity M = 1. The heating matrix 16c forms a vector as a connection scheme. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, the diodes 24c and 1-th may be dispensed with. The first terminal of the 10th row connection element 10th is connected to a jth terminal 20c of a jth inductor 18c.
    Figure 9 shows another embodiment of the invention. This other embodiment is different from the previous embodiment at least basically in relation to other electrical components of the home appliance device. The home appliance device has a quantity M of column diodes 36d. The column diode 36d jth connects at least one column connection element 12d jth with at least one reference potential 30d common to the column connection elements 12d. The reference potential 30d common to the column connection elements 12d is equal to a reference potential 30d common to the row connection elements 10d. The first terminal of the j-th column connection element 12d is connected
    with another reference potential 32d common to column connection elements 12d. He
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    The second terminal of the j-th column connection element 12d is connected to the first terminal of a j-th column diode 36d. The j-th column diode 36d blocks the current in the direction of the reference potential 30d common to the column connection elements 12d, and allows the current to flow from the direction of the reference potential 30d common to the column connection elements 12d
    In addition, the home appliance device has a number N of row diodes 34d. The ith row diode 34d connects at least one row connection element 10d ith with at least one other reference potential 32d common to the row connection elements 10d. The other reference potential 32d common to the row connection elements 10d is another operating voltage and is equal to the other reference potential 32d common to the column connection elements 12d. The first terminal of the ith row diode 34d is connected to the first terminal of the 10th ith row connection element. The second terminal of the ith row diode 34d is connected to the other reference potential 32d common to the row connection elements 10d. The ith row diode 34d blocks the current from the direction of the other reference potential 32d common to the row connection elements 10d, and allows the current to flow from the direction of the other reference potential 32d common to the elements of 10d row connection.
    A heating matrix element 16d i, jth has at least one other capacity 29d i, jth. The other capacity 29d i, jth is a capacitor. By the other capacity 29d i, jth, an inductor 18d i, jth is connected with at least one other reference potential 32d common to the heating matrix elements 16d. The other reference potential 32d common to the heating array elements 16d is another operating voltage. The first terminal of the other capacity 29d i, jth is connected to another terminal 42d i, jth of the inductor 18d i, jth. The second terminal of capacity 28d i, jth is connected to the other reference potential 32d common to the heating array elements 16d. Alternatively or additionally, the capacity 28d i, jth may be realized as a capacitor network, which comprises several capacitors connected in series and / or in parallel.
    Figure 10 shows another embodiment of the invention. This other exemplary embodiment differs from the previous embodiment at least basically in relation to the quantity N and the quantity M. The total amount N + M of row connection elements 10e and column connection elements 12e is greater in one that the quantity N x M of heating matrix elements 16e. In the present case, the quantity N = 2 and the quantity M = 1. The heating matrix 14e forms a vector as a scheme of
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    connections. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, diodes 24e and 1-th may be dispensed with. The home appliance device has a quantity of N return diodes 90e. The return diode 90e ith is connected to the 10th row connection element, specifically, it is connected in parallel with respect to the 10th row connection element i. The first terminal of the 90th return diode 90 is connected to the first terminal of the 10th row connection element i. The second terminal of the 90th return diode 90th is connected to the second terminal of the 10th row connection element i. The return diode 90e i blocks the flow of the current in the direction of the reference potential 30e common to the row connection elements 10e and allows the current to flow from the direction of the reference potential 30e common to the connection elements of row 10e. Alternatively or additionally, the home appliance device may have a number of other return diodes 90e. Another return diode 90e j could be connected in parallel with a column connection element 12e j.
    Figure 11 shows another embodiment of the invention. This other embodiment is different from the previous embodiment at least basically in relation to the amount of additional electrical components. The home appliance device has a number N of row capacities 92f. Row capacity 92f ith is connected in parallel with respect to a row connection element 10f ith. The first terminal of row capacity 92f i is th connected to the first terminal of row connection element 10f i. The second terminal of row capacity 92f i is th connected to the second terminal of row connection element 10f i. The present exemplary embodiment is further differentiated in the connection of row diodes 34f. In the present case, the row diode 34f ith is connected to a terminal 20f i, jth of an inductor 18f i, jth. The first terminal of row diode 34f i is connected to terminal 20f i, jth. The second terminal of the ith row diode 34f is connected with another reference potential 32f common to the row connection elements 10f. Row diode 34f i blocks the current from the direction of the other reference potential 32f common to the row connection elements 10f and allows the current to flow from the direction of the other reference potential 32f common to the connection elements of row 10f.
    In Fig. 12, another preferred method for directing the household appliance device mentioned above is shown. Through this procedure, you can increase the
    efficiency, in particular, cost efficiency and / or energy efficiency of the device
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    home appliance Advantageously, it is possible to improve the variable operation of the inductors 18a-g, and these can be activated more quickly.
    The procedure is described here by means of a connection element of row 10 1-
    th, of a 10-th row connection element, of a 1-th column connection element 12, of a 1,1-th inductor 18, and of a 2,1-th inductor 18. In addition, the following description is extended by the person skilled in the art to other electrical components i-th, j-th, and i, j-th of the household appliance device and, in particular, of the other household appliance devices.
    In the first procedure step 100, the control unit 38 activates the row connection elements 10 and the column connection element 12 for a switching process. The 10 1-th row connection element, the 10 2-th row connection element, and the 12 1-th column connection element form a connection unit 53 of the household appliance device. In at least one operating state, at least one operating voltage is applied to the connection unit 53. The control unit 38 supplies at least one supply voltage for the 1,1 th inductor 18 by switching the unit of connection 53, and at least partially transforms the operating voltage into the supply voltage by modulating the pulse amplitude. Also, the control unit 38 supplies at least one other supply voltage for the inductor 18 2,1-th by switching the connection unit 53, and at least partially transforms the operating voltage into the other supply voltage by means of the Pulse amplitude modulation.
    In the next procedure step 102, the control unit 38 varies the frequency of the supply voltage within the range of at least one period of the operating voltage. The control unit 38 varies the frequency by modulating the pauses between the pulses of the operating voltage. Additionally, the control unit 38 varies at least the duty cycle of the supply voltage. Similarly, the control unit 38 varies another frequency and, in particular, the duty cycle, of the other supply voltage at least within the range of the period of the operating voltage. The control unit 38 varies the other frequency of the other supply voltage in a manner complementary to the frequency of the supply voltage. The supply voltage and the other supply voltage are at least partially complementary to each other. By varying the frequency, the control unit 38 prevents overloading of at least one electrical component of the household appliance device and
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    attenuates electromagnetic radiation, taking into account a characteristic curve of the power stored in a calculation unit.
    Figure 13a shows a graph of the direction of the 1,1 th inductor 18 and the 2,1 2,1 th inductor. On the axis of abscissa 104 time is plotted. The ordinate axis 106 is an axis of values. The graph comprises a network voltage curve 108. The network voltage curve 108 shows the temporary progression of the network voltage and extends through two periods of the network voltage. The grid voltage is an alternating voltage and has a grid frequency. The grid frequency amounts to 50 Hz. The graph constitutes a curve of the operating voltage 110. The curve of the operating voltage 110 shows the temporal progression of the operating voltage and extends through four periods of the operating voltage. functioning. The mains voltage is at least partially transformed into the operating voltage by means of a rectifier of the household appliance device. The operating voltage has a frequency of 100 Hz. The graph represents the power curve 112. The power curve 112 is the temporal progression of the power that is emitted by the 1,1 th inductor 18 to a cooking battery. The graph also represents another power curve 114. The other power curve 114 shows the temporal progression of the power that is emitted by the 2,1 th inductor 18 to a cooking battery. The graph also represents the curve of total power 116. The curve of total power 116 is the temporal progression of total power that is emitted by inductor 18 1,1-th and by inductor 18 2,1-th to A cooking battery. The total power curve 116 is obtained by adding the power curve 112 and the other power curve 114.
    In figure 13b, another graph is represented. The other graph corresponds to the temporarily enlarged section of section I of the maximum of the operating voltage curve 110. The other graph represents a supply voltage curve 118. The supply voltage curve 118 shows the temporal progression of the supply voltage that is applied to the inductor 18 1,1-th. In section I of the maximum operating voltage, the frequency of the supply voltage is varied by the control unit 38. Also, the duty cycle of the supply voltage is varied by the control unit 38. The duration of the Pulse of the supply voltage remains constant. The other graph represents another curve of the supply voltage 120. The other curve of the supply voltage 120 shows the temporal progression of the other supply voltage that is applied to the inductor 18 2,1-th. In section I of the maximum operating voltage, another frequency of the other supply voltage is varied by the
    control unit 38. Also, another duty cycle of the other supply voltage is
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    varied by the control unit 38. The other pulse duration of the supply voltage remains constant. The supply voltage and the other supply voltage are complementary to each other. The other graph comprises a curve of the heating current 122. The curve of the heating current 122 shows the temporal progression of a heating current flowing through the 1,1 th inductor 18 depending on the supply voltage. The other graph comprises another curve of the heating current 124. The other curve of the heating current 124 shows the temporal progression of a heating current flowing through the 2,1 th inductor 18 depending on the other voltage of feeding. The power of the 1,1-th inductor 18 emitted to a cooking battery, shown in the power curve 112, is obtained at least basically by multiplying the supply voltage by the heating current. In the same way, the power of the 2,1-th inductor 18 emitted to a cooking battery can also be determined.
    In Fig. 14, another variation of the frequency of the supply voltage and the other frequency of the other supply voltage is shown by means of a power curve 112 ', another power curve 114', and a curve of the total power 116 '.
    In Fig. 15, another variation of the frequency of the supply voltage and the other frequency of the other supply voltage is shown. In addition, a variation of an additional frequency of an additional supply voltage is shown, which drives an additional inductor 18, by means of a power curve 112 '', another power curve 114 '', a power curve additional 113 '', and a curve of total power 116 ''.
    Figures 16a-d show graphs with typical power curves 130, 132, 134, 136 typical of the power that is emitted by an inductor 18 to a cooking battery. The cooking battery is composed of an inductive material, in particular an alloy, in particular, HAC. On the axis of abscissa 126 time is plotted. The ordinate axis 128 is the value axis. The first characteristic curve of the power 130 shows the temporal progression of the power with a degree of coverage of the inductor 18 of 30%. The second characteristic curve of the power 132 shows the temporal progression of the power with a degree of coverage of the inductor 18 of 50%. The third characteristic curve of power 134 shows the temporal progression of power with a degree of inductor 18 coverage of 75%. The fourth characteristic curve of the power 136 shows the temporal progression of the power with a degree of coverage of the inductor 18 of 100%. Figures 16a-d differ in the maximum supply voltage that is applied to capacity 28. In Figure 16a, a maximum supply voltage of
    at least 600 V. In Figure 16b, a maximum supply voltage of at least 900 V. is applied. In Figure 16c, a maximum supply voltage of at least 1,200 V. is applied. In Figure 16d, the supply voltage Maximum is not limited.
    In figures 17a-d, graphs equivalent to the graphs in figures 16a-d 5 are shown for a cooking battery that is composed of another material, namely SIL.
    In figures 18a-d, graphs equivalent to the graphs in figures 17a-d are shown for a cooking battery that is composed of another material, namely, ZEN.
    In figure 19, another embodiment of the domestic appliance device is shown. In the present case, the home appliance device has a connection unit 53g with two connection elements 10g, 12g, which are arranged in a half bridge topology. The connection unit 53g partially or completely forms at least one inverter unit 54g. The inverter unit 54g is intended to generate at least one inverter voltage from the operating voltage. Likewise, the connection unit 53g has a variation connection unit 55g. The variation connection unit 55g comprises an additional connection element 138g. The additional connection element 138g is connected with an inductor 18g in a first connection state, and with another inductor 18g of the home appliance device in a second connection state. In this case, the control unit 38g is provided to transform the inverter voltage at least partially into a supply voltage and another supply voltage by means of the variation connection unit 55g. In addition, the control unit 38g varies the frequency of the supply voltage and the other supply voltage by means of the variation connection unit 55g.
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    Reference symbols
    Row connection element
    Column connection element
    Heating matrix
    Heating matrix element
    Inductor
    Terminal
    Inductor matrix
    Diode
    Other diode
    Capacity
    Capacity
    Reference potential (earth)
    Other reference potential Row diode Column diode Control unit
    Cooking battery recognition mode Other terminal
    Operating voltage
    Characteristic curve
    Characteristic curve
    Domestic appliance
    Cooking Field Plate
    Heating zone position
    Connection unit
    Inverter unit
    Variation Connection Unit
    Operating step
    Loading step
    Download step
    Determination step
    Abscissa shaft
    Edge of ordered
    First tension curve
    70
    72
    74
    76
    80
    82
    84
    86
    88
    90
    92
    100
    102
    104
    106
    108
    110
    112
    113
    114
    116
    118
    120
    122
    124
    126
    128
    130
    132
    134
    136
    138
    Second tension curve
    Third tension curve
    Fourth tension curve
    Fifth tension curve
    First current curve
    Second current curve
    Third current curve
    Fourth Current Curve
    Inverter element
    Return diode
    Row capacity
    Procedure step
    Procedure step
    Abscissa shaft
    Edge of ordered
    Mains voltage curve
    Operating voltage curve
    Power curve
    Additional power curve
    Other power curve
    Total power curve
    Supply voltage curve
    Another supply voltage curve
    Heating current curve
    Another curve of the heating current
    Abscissa shaft
    Edge of ordered
    First characteristic curve of power Second characteristic curve of power Third characteristic curve of power Fourth characteristic curve of power Additional connecting element
    权利要求:
    Claims (10)
    [1]
    5
    10
    fifteen
    twenty
    25
    30
    35
    1. Induction cooking device, with at least one inductor (18a-g), with at least one connection unit (53a-g) to which at least one operating voltage is applied in at least one state of operation, and with a control unit (38a-g) that is intended to supply at least one supply voltage for the inductor (18a-g) by switching the connection unit (53a-g), characterized in that the unit of control (38a-g) is provided to vary in at least one operating state at least the frequency of the supply voltage within the range of at least one period of the operating voltage.
    [2]
    2. Home appliance device according to claim 1, characterized in that the control unit (38a-g) is provided to further vary at least the duty cycle of the supply voltage in the operating state.
    [3]
    3. Home appliance device according to one of the preceding claims, characterized in that the control unit (38a-g) is provided to prevent the overload of at least one electrical component by varying the frequency.
    [4]
    4. Home appliance device according to one of the preceding claims, characterized in that the control unit (38a-g) is provided to attenuate electromagnetic radiation by varying the frequency.
    [5]
    5. Home appliance device according to one of the preceding claims, characterized by at least one other inductor (18a-g), wherein the control unit (38a-g) is provided to supply at least one other supply voltage for the other inductor (18a-g) by switching the connection unit (53ag) and to vary in at least one operating state at least another frequency of the other supply voltage within the range of at least one period of the voltage of functioning.
    [6]
    6. Household appliance according to claim 5, characterized in that the supply voltage and the other supply voltage are at least partially complementary to each other.
    10
    fifteen
    twenty
    25
    [7]
    7. Home appliance device according to one of the preceding claims, characterized in that the connection unit (53a-g) has at least one inverter unit (54a-g), which is intended to generate at least one inverter voltage a from the operating voltage, and at least one variation connection unit (55g), which is intended to generate at least the supply voltage from the inverter voltage.
    [8]
    8. Household appliance according to claim 7, characterized in that the control unit (38a-g) is provided to vary the supply voltage in the operating state by means of the variation connection unit (55g).
    [9]
    9. Home appliance device according to one of the preceding claims, characterized by at least one heating matrix (14a-f) having at least a N x M quantity of heating matrix elements (16a-f), wherein the connection unit (53a-f) has at least a quantity N of row connection elements (10a-f) and at least a quantity M of column connection elements (12a-f), where, for any i of 1 a N and any j of 1 to M with a total N + M number of row connection elements (10a-f) and column connection elements (12a-f) greater than 2, it is applicable that the matrix element of heating (16a-f) i, jth comprises at least one inductor (18a-f) i, jth and is connected both with the row connecting element (10a-f) i and with the element j-th column connection (12a-f).
    [10]
    10. Domestic appliance (48a), in particular, cooking appliance, with a domestic appliance device according to one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    CN110169198A|2019-08-23|
    US20190261466A1|2019-08-22|
    EP3556179A1|2019-10-23|
    WO2018116050A1|2018-06-28|
    ES2673132B1|2019-03-28|
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    法律状态:
    2018-06-19| BA2A| Patent application published|Ref document number: 2673132 Country of ref document: ES Kind code of ref document: A1 Effective date: 20180619 |
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    优先权:
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    ES201631616A|ES2673132B1|2016-12-19|2016-12-19|Induction cooking appliance device.|ES201631616A| ES2673132B1|2016-12-19|2016-12-19|Induction cooking appliance device.|
    PCT/IB2017/057772| WO2018116050A1|2016-12-19|2017-12-11|Domestic appliance|
    US16/334,029| US20190261466A1|2016-12-19|2017-12-11|Domestic appliance|
    CN201780078370.9A| CN110169198A|2016-12-19|2017-12-11|Home appliance device|
    EP17822458.0A| EP3556179A1|2016-12-19|2017-12-11|Domestic appliance|
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