• 专利附录
  • 专利说明
  • 权利要求
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    • 专利摘要:
    In order to increase efficiency, the invention refers to a domestic appliance device with at least one inverter unit in half bridge or full bridge connection for the commissioning of several inductors by means of a multiplexer. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2673130A1
    申请号:ES201631614
    申请日:2016-12-19
    公开日:2018-06-19
    发明作者:José Miguel Burdio Pinilla；Tomas Cabeza Gozalo；Sergio Llorente Gil；Oscar Lucia Gil；Ignacio Millan Serrano；Alejandro NAVAL PALLARES；Hector Sarnago Andia
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    DOMESTIC DEVICE OF INDUCTION COOKING DEVICE WITH A MATRIX OF ELEMENTS OF
    HEATING
    DESCRIPTION
    The present invention refers to a domestic induction cooking device with a matrix of heating elements.
    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. According to the invention, this technical problem is solved by a domestic cooking appliance device and, preferably, a cooking field device, with at least a quantity N of row connection elements, with at least an amount M of column connection elements, and with at least one heating matrix having at least, in particular exactly, a quantity N x M of heating matrix elements, where, for any i of 1 to N and any j of 1 to M with a total amount N + M of column connection elements and row connection elements greater than 2, it is applicable that the heating matrix element i, jth comprises at least one, preferably exactly one, inductor i, j-th and be connected with both the ith row connection element and the jth column connection element.
    The household appliance device is a part of at least one constructive subgroup, of a household appliance. The home appliance device may also comprise the entire home appliance. The household appliance is a cooking appliance, preferably a microwave oven, a cooking oven and / or a cooking field, in particular a matrix cooking field, namely, variable and, particularly preferably, an appliance Induction cooking, in particular, an induction cooking oven and / or, preferably, an induction cooking field, in particular an induction die cooking field. The cooking appliance device is a household appliance device that conforms to a cooking appliance at least partially. The variable cooking field is a cooking field in which the inductors are arranged in a
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    regular spatial arrangement under a cooking field plate of the household appliance device, and partially or completely form at least one heating zone, preferably several variable heating zones, which / which comprise (a) 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 cooking field plate. 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. 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 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 connection scheme and / or that Define that provision. The arrangement as a connection scheme is different with respect to a spatial arrangement in which the column connection elements and the row connection elements may be arranged in an arrangement preferred 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. 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 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, the connection element.
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    semiconductor connection, 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 preferably, as HEMT (High-Electron Mobility Transistor) transistor. The HEMT transistor is a high-mobility electron transistor, with 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'1s'1 and, particularly preferably, at least 1,000 cm2 V'1s'1. 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 source terminal, 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. 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 inverter unit i, jth is 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, at least 10 kHz and, of advantageously, at least 20 kHz, to operate the inductor i, j-th. In addition, the home appliance device has a control unit that is intended to activate the row connection elements and the column connection elements. 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 Particularly advantageously, the control unit is intended to activate
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    the row connection elements and the column connection elements as inverter connection elements, such 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 a switching process with a very small loss of power, which occurs if the switching process is largely or completely without current and / or, preferably without voltage, a process also known by its English name "Zero current switching (ZCS), in a smooth switching process in which the current flows directly before a switching process in the heating array element i, jth and, in particular, in the inductor i, j-th, be it approximate or exactly tiny, in particular, approximately zero. In particular, the control unit is provided in the switching process without current to switch the connection elements 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 inductor i, j-th, be approximate or exactly negligible, in particular, approximately zero. In particular, the control unit is provided in the voltageless switching process to switch the connection elements with a switching frequency that is greater than the resonant frequency of the heating matrix element i, jth. 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 factor 500 at least. 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. The direct connection between two electrical components does not have 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 to 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. The inductor is an electrical component that in at least one state of cooking operation is
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    provided for inductively heating a cooking battery that is positioned on the cooking field plate of the household appliance device. The inductor comprises at least one electric conductor wound 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. The inductor can be provided to transform the electric energy into an alternating magnetic field to cause eddy currents and / or magnetic inversion effects in the cooking battery that are transformed into heat.
    Through a corresponding embodiment, a home appliance device can be provided with better properties in terms of efficiency, in particular, in terms of cost efficiency and / or energy efficiency. In particular, 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.
    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 matrix of
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    heating. 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. In particular, inductors i, j-th of equal i or equal j are arranged in the same row or column of the heating matrix. Likewise, the inductors i, j-ths of the same ioj are arranged grouped together and form at least one heating zone for a partially or completely cooking battery, preferably, largely or completely and, particularly preferred, 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 connection elements of
    column and row connection elements and, advantageously, thus reduce costs
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    relative to the 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 inductor i, j-th is connected at least to the column connecting element j- thymus 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. He
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    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 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 sensor unit of the home appliance device, and is
    preferably the frequency, amplitude and / or phase of the voltage that is applied to the inductor and / or of
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    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 description, those values that fall within the mentioned limits are also considered disclosed and usable.
    Other advantages are taken from the following description of the drawing. Various embodiments of the invention are represented 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
    a domestic appliance with a domestic appliance device, in schematic top view,
    Fig 2
    wiring diagram of a part of the home appliance device with a heating array,
    Fig. 3
    a part of the home appliance device with an array of inductors, in schematic top view,
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     Fig. 4  schematic flow chart of a procedure for putting the home appliance device into operation with a cooking battery recognition mode;
     Fig. 5 a-b  different graphs with typical progressions of the current and / or voltage during the operation of the household appliance device,
     Fig. 6a, b  different graphs with typical progressions of the current and / or voltage during the operation of the household appliance device,
     Fig. 7  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 8  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 9  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 10  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 11  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 12  another device of domestic appliance, in a representation as a connection scheme.,
     Fig. 13  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 14  another device of domestic appliance, in a representation as a connection scheme,
     Fig. 15  another household appliance device, in a representation as a connection scheme, and
     Fig. 16  another device of domestic appliance, in a representation as a connection scheme.
    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.
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    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. The cooking field plate 50a 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 element terminal
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    The 10th row connection is connected to the heating matrix element 16a, 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 at least partially into the operating voltage. The 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 row connection element 10a i-
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    The thirteenth and the j-th column connection element 12a together make up 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. In particular, the control unit 38a activates the row connection element 10th i and the column connection element 12th j such that a smooth switching process occurs between at least a first connection state and a second connection state of the 10th row connection element 10th and the 12th 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-
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    The latter allows current to flow in the direction of inductor 18a, jth and blocks it in the direction of column connection element 12th 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, jth is connected to another terminal 42a i, jth of 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.
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    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 the reference potential 30a common to the row connection elements 10a 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 potential of
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    reference 30a common to row connection 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 12th-1st column connection element varies over time. If the operating voltage 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, is discharged. 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
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    Temporary progression of the tension that is applied to the heating matrix element 16a 2,2-th. A fifth voltage curve 76a shows the temporal progression of 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. The current is drawn on the ordinate axis 66a. 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 16, other embodiments of the invention are shown. The following description and drawings are essentially limited to the differences between the embodiments, where, in relation to components indicated in the same way, in
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    In particular, as regards components with the same reference symbols, it is also possible to refer basically to the drawing and / or to the description of the other embodiment of Figures 1 to 6. For the differentiation of the embodiments, the letter "a ”Is postponed to the reference symbols of the embodiment of Figures 1 to 6. In the examples of embodiment of Figures 7 to 16, the letter" a "has been replaced by the letters" b "to" h ", "k", "p", or "q".
    Figure 7 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. In the present case, the quantity N of row connecting elements 10b is equal to the quantity M of elements of column connection 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 14c forms a vector as a connection scheme, in particular a column vector. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, the diodes 1, 1-th may be dispensed with. The first terminal of the 10th row connection element 10th is connected to a terminal 20c 1, 1 of an inductor 18 1, 1 th.
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    Figure 9 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 10d and column connection elements 12d is greater in one that the quantity N x M of heating array elements 16d. In the present case, the quantity N = 1 and the quantity M = 2. The heating matrix 14d forms a vector as a connection scheme, in particular, a row vector. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, diodes j, 1- th may be dispensed with. The first terminal of the column connection element 12d j th is connected to a terminal 20d j, 1 th of an inductor 18d j, 1 th.
    Figure 10 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 household device has a quantity M of column diodes 36e. The j-th column diode 36e connects at least one j-th column connection element 12e with at least one reference potential 30e common to the column connection elements 12e. The reference potential 30e common to the column connection elements 12e is equal to a reference potential 30e common to the row connection elements 10e. The first terminal of the jth column connection element 12e j is connected with another reference potential 32e common to the column connection elements 12e. The second terminal of the j-th column connection element 12e is connected to the first terminal of a j-th column diode 36e. The j-th column diode 36e blocks the current in the direction of the reference potential 30e common to the column connection elements 12e, and allows the current to flow from the direction of the reference potential 30e common to the column connection elements 12e
    In addition, the home appliance device has a number N of row diodes 34e. Row diode 34e i connects at least one row connection element 10e i with at least one other reference potential 32e common to row connection elements 10e. The other reference potential 32e common to the row connection elements 10e is another operating voltage and is equal to the other reference potential 32e common to the column connection elements 12e. The first terminal of row diode 34e i is connected to the first terminal of row connection element 10e i. The second terminal of row diode 34e i is connected to the other reference potential 32e
    common to row connection elements 10e. The 34th i-th row diode blocks the
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    current from the direction of the other reference potential 32e common to the row connection elements 10e, and allows the current to flow from the direction of the other reference potential 32e common to the row connection elements 10e.
    A heating matrix element 16e i, jth has at least one other capacity 29e i, jth. The other capacity 29e and jth is a capacitor. By the other capacity 29e i, jth, an inductor 18e i, jth is connected with at least one other reference potential 32e common to the heating matrix elements 16e. The other reference potential 32e common to the heating matrix elements 16e is another operating voltage. The first terminal of the other capacity 29e i, jth is connected to another terminal 42e i, jth of the inductor 18e i, jth. The second terminal of capacity 28e i, jth is connected with the other reference potential 32e common to the heating matrix elements 16e. Alternatively or additionally, the capacity 28e i, jth may be realized as a capacitor network, which comprises several capacitors connected in series and / or in parallel.
    Figure 11 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 10f and column connection elements 12f is greater in one that the quantity N x M of heating matrix elements 16f. In the present case, the quantity N = 2 and the quantity M = 1. The heating matrix 14f forms a vector as a connection scheme, in particular a column vector. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, the diodes 1, 1-th may be dispensed with.
    Figure 12 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 10g and column connection elements 12g is greater in one that the quantity N x M of heating matrix elements 16g. In the present case, the quantity N = 2 and the quantity M = 1. The heating matrix 14g forms a vector as a connection scheme, in particular a column vector. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, the diodes i, 1-th may be dispensed with.The household appliance has a quantity of N return diodes 90g . The 90g i-th return diode is connected to the 10g i-th row connecting element, specifically, it is connected in parallel with respect to the
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    10g i-th row connection element. The first terminal of the 90th return diode 90th is connected to the first terminal of the 10th row connection element 10th. The second terminal of the 90th return diode 90 is connected to the second terminal of the 10th row connection element. The 90th i return diode blocks the flow of the current in the direction of the reference potential 30g common to the row connection elements 10g and allows the current to flow from the direction of the reference potential 30g common to the connection elements row 10g. Alternatively or additionally, the home appliance device may have an amount of other return diodes 90g. Another 90g j-th return diode could be connected in parallel with a j-th 12g column connection element. In addition, in this case, a column diode can be dispensed with.
    Figure 13 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 present exemplary embodiment differs in the connection of row diodes 34h. In the present case, the row diode 34h ith is connected to a terminal 20h i, jth of an inductor 18h i, jth. The first terminal of row diode 34h ith is connected to terminal 20h i, th. The second terminal of row diode 34h i is connected with another reference potential 32h common to row connection elements 10h. Row diode 34h i blocks the current from the direction of the other reference potential 32h common to the row connection elements 10h and allows the current to flow from the direction of the other reference potential 32h common to the connection elements in line 10h.
    Figure 14 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 92k. Row capacity 92k ith is connected in parallel with respect to a row connection element 10k ith. In addition, the 92k i-th row capacity is connected in parallel to a 90k i-th return diode. The first terminal of row capacity 92k i is connected to the first terminal of row connection element 10k i. The second terminal of row capacity 92k i is connected to the second terminal of row connection element 10k i. In addition, in this case, a column diode can be dispensed with.
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    Figure 15 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 10p and column connection elements 12p is greater in one that the quantity N x M of heating matrix elements 16p. In the present case, the quantity N = 1 and the quantity M = 2. The heating matrix 14p forms a vector as a connection scheme, in particular, a row vector. In a configuration for which it is applicable that the total quantity N + M is greater by one than the quantity N, other diodes j, 1-th may be dispensed with. The home appliance device has a quantity M of other return diodes 91p. The other return diode 91p jth is connected to the column connection element 12p j, specifically, it is connected in parallel with respect to the column connection element 10p jth. The first terminal of the other return diode 91p jth is connected to the first terminal of the column connection element 12p jth. The second terminal of the other return diode 91p jth is connected to the second terminal of the column connection element 12p jth. The other return diode 91p jth allows the current to flow in the direction of the reference potential 32p common to the column connection elements 12p and blocks the flow of the current from the direction of the reference potential 32p common to the elements of 12p column connection. Alternatively or additionally, the home appliance device may have a number of return diodes 90p. A 90p i-th return diode could be connected in parallel with a 10p i-th row connection element. In addition, in this case, a row diode can be dispensed with. Also, an ith row diode can be dispensed with.
    Figure 16 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 quantity M of column capacities 93q. The column capacity 93q jth is connected in parallel with respect to a column connection element 12q jth. In addition, column capacity 93q jth is connected in parallel to another return diode 91q jth. The first terminal of the j-th column capacity 93q is connected to the first terminal of the j-th column connection element 12q. The second terminal of the j-th column capacity 93q is connected to the second terminal of the j-th column connection element 12q. In addition, an ith row diode can be dispensed with.
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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 Other reference potential Row diode Column diode Control unit
    Cooking Battery Recognition Mode
    Other terminal
    Characteristic curve
    Characteristic curve
    Domestic appliance
    Cooking Field Plate
    Heating zone position
    Inverter unit
    Operating step
    Loading step
    Download step
    Determination step
    Abscissa shaft
    Edge of ordered
    First tension curve
    Second tension curve
    Third tension curve
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    93
    T
    Fourth voltage curve Fifth voltage curve First current curve Second current curve Third current curve Fourth current curve Inverter element Inverter element Return diode Other return diode Row capacity Column capacity Point in time
    权利要求:
    Claims (17)
    [1]
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    1. Home cooking appliance device, with at least a quantity N of row connection elements (10a-q), with at least a quantity M of column connection elements (12a-q), and with at least one heating matrix (14a-q) having at least an NxM amount of heating matrix elements (16a-q) and control unit (38a-q), which is intended to activate the row connection elements (10a-q) and column connection elements (12a-q), where, for any i from 1 to N and any j from 1 to M with a total N + M number of row connection elements (10a- q) and column connection elements (12a-q) greater than 2, it is applicable that the heating matrix element (16a-q) i, jth comprises at least one inductor (18a-q) i, j- th and is connected to both the ith row (10a-q) and the jth column (12a-q) connection element.
    [2]
    2. Home appliance device according to claim 1, characterized in that the inductor (18a-q) i, jth has at least one terminal (20a-q) i, j-th, which is connected both to the element of row connection (10a-q) i-th as with the column connection element (12a-q) jth.
    [3]
    3. Household appliance according to claims 1 or 2, characterized in that the inductors (18a-q) are spatially arranged in an array of inductors (22a).
    [4]
    4. Home appliance device according to claim 3, characterized in that, in the inductor array (22a), the inductors (18a-q) are spatially arranged such that the inductor (18a-q) i, jth, for which i = j is applicable in the heating matrix (14a-q), it is adjacent to the inductor (18a-q) i, j-th, for which i ^ j is applicable in the heating matrix (14a -q).
    [5]
    5. Household appliance according to claims 3 or 4, characterized in that, in the inductor array (22a), the inductors (18a-q) i, j-ths of equal i or of equal j are adjacent to each other.
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    [6]
    6. Household appliance according to one of the preceding claims, characterized in that the quantity N of row connection elements (10b) is equal to the quantity M of column connection elements (12b).
    [7]
    7. Household appliance according to one of claims 1 to 5, characterized in that the total amount N + M of row connection elements (10c; 10d; 10f-q) and column connection elements (12c; 12d; 12f -q) is greater by one than the quantity N x M of heating matrix elements (16c; 16d; 16f-
    q).
    [8]
    8. Home appliance device according to one of the preceding claims, characterized in that the heating matrix element (16a; 16b; 16d; 16e; 16p; 16q) i, jth has at least one diode (24a, 24b; 24d; 24e; 24p; 24q) i, jth, whereby the inductor (18a; 18b; 18d; 18e; 18p; 18q) i, jth is connected to the row connection element (10a; 10b ; 10d; 10e; 10p; 10q) ith.
    [9]
    9. Home appliance device according to one of the preceding claims, characterized in that the heating matrix element (16a-c; 16e-k) i, jth has at least one other diode (26a-c; 26e-k) i, j-th, whereby the inductor (18a-c; 18e-k) i, j-th is connected with the column connection element (12a-c; 12e-k) jth.
    [10]
    10. Home appliance device according to one of the preceding claims, characterized in that the heating matrix element (16a-q) i, jth has at least one capacity (28a-q) i, jth, by means of the which inductor (18a-q) i, jth is connected with at least one reference potential (30a-q) common to the heating matrix elements (16a-q).
    [11]
    11. Home appliance device according to one of the preceding claims, characterized by an amount M of column diodes (36e; 36f; 36h; 36p; 36q), wherein the column diode (36e; 36f; 36h; 36p; 36q ) j-th connects at least the column connection element (12e; 12f; 12h; 12p; 12q) j-th with at least one reference potential (30e; 30f; 30h; 30p; 30q) common to the elements of column connection (12e; 12f; 12h; 12p; 12q).
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    [12]
    12. Household appliance according to one of the preceding claims, characterized by an amount N of row diodes (34e-k), wherein the ith row diode (34e-k) i connects at least the connecting element of row (10e-k) i-th with at least one other reference potential (32e-k) common to the row connection elements (10e-k).
    [13]
    13. Household appliance according to claim 1, characterized in that the control unit (38a-q) is provided to activate the row connection elements (10a-q) and the column connection elements (12a-q) as inverter connection elements.
    [14]
    14. Household appliance according to claim 13, characterized in that, if the operating voltage adopts an approximate or exactly negligible value, the control unit (38a-q is provided in at least one cooking battery recognition mode (40a ) to determine at least one electrical parameter that originates from at least one of the inductors (18a-q).
    [15]
    15. Household appliance according to claim 14, characterized in that the control unit (38a-q) is provided in the cooking battery recognition mode (40a) for first charging the inductor (18a-q) i, j- th, and then, if the operating voltage adopts an approximate or exactly negligible value, to discharge it again.
    [16]
    16. Home appliance device according to claim 15, characterized in that the control unit (38a-q is provided in the cooking battery recognition mode (40a) to detect a characteristic curve (46a, 47a) of a discharge process of the inductor (18a-q) i, j-th and, by means of this, determine the electrical parameter.
    [17]
    17. 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
    CN110050507B|2021-08-17|
    ES2889549T3|2022-01-12|
    WO2018116055A1|2018-06-28|
    US20190274191A1|2019-09-05|
    ES2673130B1|2019-03-28|
    EP3556181B1|2021-07-21|
    EP3556181A1|2019-10-23|
    CN110050507A|2019-07-23|
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201631614A|ES2673130B1|2016-12-19|2016-12-19|DOMESTIC COOKING DEVICE FOR INDUCTION WITH A MATRIX OF HEATING ELEMENTS|ES201631614A| ES2673130B1|2016-12-19|2016-12-19|DOMESTIC COOKING DEVICE FOR INDUCTION WITH A MATRIX OF HEATING ELEMENTS|
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    PCT/IB2017/057815| WO2018116055A1|2016-12-19|2017-12-12|Domestic appliance|
    ES17822460T| ES2889549T3|2016-12-19|2017-12-12|home appliance device|
    US16/334,032| US20190274191A1|2016-12-19|2017-12-12|Domestic appliance|
    CN201780078442.XA| CN110050507B|2016-12-19|2017-12-12|Household appliance device|
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