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    • 专利摘要:
    In order to increase the efficiency of the device, 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:ES2673131A1
    申请号:ES201631615
    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:

    image 1 INDUCTION COOKING DOMESTIC DEVICE DEVICE WITH A HEATING ELEMENT MATRIX DESCRIPTION
    The present invention refers to a domestic appliance device induction cooking 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 means of a domestic induction cooking device and, preferably, a cooking field device, with at least a quantity N of row connection elements, with at least one
    15 quantity 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 from 1 to M with a total N + M amount of column connection elements and row connection elements greater than 2, it is applicable that the heating matrix element i, j
    The latter comprises at least one, preferably exactly one, i, jth inductor and is connected to both the ith row connection element and the jth column connection element, and with at least one connection diode that connects at least one of the row connection elements or at least one of the column connection elements with at least one reference potential.
    25 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, in particular, variable and, particularly preferably,
    30 an induction cooker, in particular an induction cooker and / or, preferably, an induction cooker, in particular, a cooker of
    image2
    induction matrix. The induction cooker device is a household appliance device that conforms to an induction cooker at least partially. The variable cooking field is a cooking field in which the inductors are arranged in a regular spatial arrangement under a cooking plate of the household appliance device, and partially or completely form at least one heating zone, preferably, several variable heating zones, which / which comprise (n) an area of the cooking field plate of preferably at least 10%, preferably, at least 30% and, particularly advantageously, 40 At least% of the total surface of the cooking field plate 10. 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. In particular, 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 15 elements of column connection 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 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 reference potential common 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 mass potential 30. 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, 35 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, 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, so particularly preferred, as HEMT transistor (High-Electron Mobility Transistor). The HEMT transistor is a transistor of 10 high mobility of electrons, 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-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 of heterounion 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 elements of connection of the inverter and together or partially or completely and, preferably, completely, an inverter unit i, jth of the domestic 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 , 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, in 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 provided to activate 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 status and a second connection status of the connection elements, that is, by means of a switching process with a very small loss of power, which occurs if the switching process without voltage process known by its English name "zero 10 voltage switching (ZVS) ”, includes the concept of a smooth switching process in which the voltage that is applied and / or that drops directly before a switching process in the heating matrix element i, jth and, in particular, in the i, j-th inductor, it is approximately 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 a factor of at least 50, preferably, at a factor of at least 100 and, particularly preferably, in a factor of at least 500 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 inductor i, jth, has at least one, in particular, exactly one, i, jth terminal, which is connected both with the ith row connection element, in particular, with the first 30 terminal of the i-th row connection element, as with the j-th column connection element, in particular, with the second terminal of the j-th column connection element. The inductor is an electrical component that in at least one state of cooking operation is provided to inductively heat a cooking battery that is positioned on the cooking field plate of the domestic appliance device 35. The inductor comprises at least one electric conductor wound in the form of a circular plate, which is crossed by the flow of a high heating current
    image3
    image4
    image5
    frequency in at least the operating state of cooking. 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. Advantageously, a particularly smooth and thus energy efficient switching process can be achieved. 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 arrangement mentioned above makes it possible for the connecting elements to be switched smoothly and to a large extent.
    or completely without voltage, which can reduce switching losses. 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 array, the inductors are spatially arranged such that at least one i, j-th 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
    5
    10
    fifteen
    twenty
    25
    30
    35


    applicable i ≠ j in the heating matrix ”includes the concept of an inductor outside 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, jésimos of equal i or of 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 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.
    image6
    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,
    5 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 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 to at least 10 the connecting element of row i -th Specifically, the i, jth diode is connected to the jth terminal between the jth inductor and the ith row element. Diode i, jth 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 jth inductor. In the case that the number of row connection elements is equal to 1, diode jth 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 20 Specifically, the other diode i, jth is connected to the jth terminal 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, it can be
    25 dispense with the i, j-th diode. 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, jth be present at
    30 minus a i-j capacity, whereby the i-j inductor is connected with at least one reference potential common to the heating matrix elements. 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 to the
    35 minus another potential reference common to heating matrix elements. He
    image7
    Another potential reference common to 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 5 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, jth, 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
    10 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, namely, the other potential operating, common to row connection elements. In the event that the connection diode 15 connects the ith row connection element with a common reference potential to the row connection elements, the connection diode is the ith row diode. 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 potential of
    20 operation, common for column connection elements. In the event that the connection diode connects the jth column connection element with a common reference potential to the column connection elements, the connection diode is the jth column diode. 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 that originates in at least One of the inductors. The electrical parameter is preferably correlated with the electromagnetic coupling of the inductor with a battery of
    30 cooking, in particular, with the degree of coverage and / or the cooking battery material. 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 signal
    35 electronics measured by a sensor unit of the household appliance device, and is


    preferably the frequency, amplitude and / or phase of the voltage that is applied to the inductor and / or of 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 household appliance with a household appliance device, in view
    schematic superior,
    Fig 2 wiring diagram of a part of the household appliance device
    with a heating matrix,


    Fig. 3 a part of the home appliance device with an array of inductors, in schematic top view, Fig. 4 schematic flow chart of a procedure for the operation of the home appliance device with a battery recognition mode of cooking;
    Fig. 5 a, b different graphs of typical progressions of the current and / or voltage during the operation of the domestic 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 diagram-like representation, Fig. 8 another device of domestic appliance, in a diagram-like representation, Fig. 9 another device of domestic appliance, in a representation by way of a connection scheme, Fig. 10 another device of domestic appliance, in a representation by way of connection scheme, Fig. 11 another device of domestic appliance, in a representation by way of connection scheme, Fig. 12 another device of domestic appliance, in a representation by way of connection scheme, and Fig. 13 another device of domestic appliance, in a representation by way of connection scheme.
    25 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, by
    For example, as a microwave oven or induction oven, which differs from a cooking field and is advantageous to the person skilled in the art.
    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 35 comprises preferred heating zone positions 52a, which indicate the
    image8
    Preferred positions for 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 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 i is connected with a reference potential 30a common to the


    row connection elements 10a. 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 home appliance device comprises other row connection elements 10a-th and other column connection elements 12a j, 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 connection elements 12th may be arranged in a complete bridge topology.
    Row connection element 10th and column connection element 12th serve as inverter connection elements. The row connection element 10th and the column connection element 12a j jointly form at least one inverter unit 54a i, 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.
    image9
    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, 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 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 capacity 28a i, jth, inductor 18a i, jth is connected with at least one potential


    reference 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.
    A heating matrix element 16a i, jth has at least one other capacity 29a i, jth. The other capacity 29a and jth is a capacitor. By the other capacity 29a i, jth, an inductor 18a i, jth is connected with at least one other reference potential 32a common to the heating matrix elements 16a. The other reference potential 32a common to the heating matrix elements 16a is another operating voltage. The first terminal of the other capacity 29a i, jth is connected to another terminal 42a i, jth of the inductor 18a i, jth. The second terminal of capacity 28a, jth is connected with the other reference potential 32a common to the heating matrix elements 16a. Alternatively or additionally, the 28th capacity may be realized as a capacitor network, which comprises several capacitors connected in series and / or in parallel.
    The home appliance device has a quantity M of column diodes 36a. The ith column diode 36a connects at least one column connection element 12th with at least one reference potential 30a common to the column connection elements 12a. The reference potential 30a common to the column connection elements 12a is equal to a reference potential 30a common to the row connection elements 10a. The first terminal of the j-th column connection element 12a is connected with another reference potential 32a common to the column connection elements 12a. The second terminal of the j-th column connection element 12a is connected to the first terminal of a j-th column diode 36a. The j-th column diode 36a blocks the current in the direction of the reference potential 30a common to the column connection elements 12a, and allows the current to flow from the direction of the reference potential 30a common to the column connection elements 12th
    In addition, the home appliance device has a number N of row diodes 34a. Row diode 34th i connects at least one row connection element 10th i with at least one other reference potential 32a common to row connection elements 10a. The other reference potential 32a common to the row connection elements 10a is another operating voltage and is equal to the other reference potential 32a common to the column connection elements 12a. The first terminal of the 34th row diode is


    connected to the first terminal of the 10th row connection element i. The second terminal of row diode 34a is connected with the other reference potential 32a common to row connecting elements 10a. Row diode 34a i blocks the current from the direction of the other reference potential 32a common to the row connection elements 10a, and allows the current to flow from the direction of the other reference potential 32a common to the elements of row connection 10a.
    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, equal to 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, jésimos are spatially arranged such that at least one inductor 18a i, j-th for which 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, j-ths 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 in an equivalent way to any other i-th electrical component and the jésimo 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 alternately pass from a first connection state to a second state
    5
    10
    fifteen
    twenty
    25
    30
    35


    of connection through a switching process. The row connection element 10a 2 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 2,1th.
    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 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 28th 2,2th capacity, is charged with the reference potential 30a common to the row connection elements 10a, provided by the element of 10th-2nd row connection. 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.
    image10
    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 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 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 adopts an approximate value or


    exactly tiny. 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 16th 1.1. 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 2,2th. 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 13, 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


    In the embodiment examples of Figures 7 to 13, the letter "a" has been replaced by the letters "b", "f", "g", "h", "k", "p" and "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 12b with another reference potential 32b common to the column connection elements 12b.
    Figure 8 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 amount N + M is greater by one than the amount N, diodes 24f, 1-th may be dispensed with.
    Figure 9 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 24g and 1-th may be dispensed with. The home appliance device has a quantity of N return diodes 90g. The 90g i-th return diode is connected to the 10th ith row connection element, specifically, it is connected in parallel with respect to the 10th ith 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 the present case, a column diode can be dispensed with.
    image11
    Figure 10 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 i th is connected to a terminal 20h i, jth of an inductor 18h i, jth. The first terminal of row diode 34h i is the one 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. The ith row diode 34h 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 row connection elements 10h
    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 92k. The ith row capacity 92k is connected in parallel with respect to a 10th row connection element ith. In addition, a 90k i-th return diode is connected in parallel to an element


    10k row connection i-th. 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.
    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 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, a row 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 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. The first terminal of column capacity 93q jth 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, a 34th row diode can be dispensed with.
    image12
    Reference symbols
    Row connection element
    12 Column connection element
    14 Heating matrix
    16 Heating matrix element
    18 Inductor
    Terminal
    22 Inductor matrix
    24 Diode
    26 Other diode
    28 Capacity
    29 Capacity
    Reference potential
    32 Other reference potential
    3. 4 Row diode
    36 Column diode
    38 Control unit
    Cooking Battery Recognition Mode
    42 Other terminal
    46 Characteristic curve
    47 Characteristic curve
    48 Domestic appliance
    Cooking Field Plate
    52 Heating zone position
    54 Inverter unit
    56 Operating step
    58 Loading step
    Download step
    62 Determination step
    64 Abscissa shaft
    66 Edge of ordered
    68 First tension curve
    Second tension curve
    72 Third tension curve


    74 Fourth tension curve
    76 Fifth tension curve
    80 First current curve
    82 Second current curve
    84 Third current curve
    86 Fourth Current Curve
    88 Inverter element
    89 Inverter element
    90 Return diode
    91 Other return diode
    92 Row capacity
    93 Column capacity
    T Point in time
    权利要求:
    Claims (17)
    [1]
    image 1
    1. Device for domestic induction cooking apparatus, with at least a quantity N of row connection elements (10a-q), with at least a quantity M of column connection elements (12a-q), with at least an array of
    5 heating (14a-q) which has at least a quantity N x M of heating matrix elements (16a-q) and a 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 elements of
    10 column connection (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, jth and is connected both with the i-th row connection element (10a-q) and with the j-th column connection element (12a-q), and with at least one connection diode (34a-q, 36a-q) which connects at least one of the connection elements of
    15 row (10a-q) or at least one of the column connection elements (12a-q) with at least one reference potential (30a-q, 32a-q).
    [2]
    2. Home appliance device according to claim 1, characterized in that the jth inductor (18a-q) i has at least one jth terminal (20a-q), which is
    20 connected to both the ith row connection element (10a-q) and the jth column element (12a-q).
    [3]
    3. Household appliance according to claims 1 or 2, characterized
    because the inductors (18a-q) are spatially arranged in a matrix of 25 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 jth inductor (18a-q), for which is applicable i = j in the matrix
    30 heating (14a-q) is adjacent to the inductor (18a-q) i, jth, for which i i j is applicable in the heating matrix (14a-q).
    [5]
    5. Household appliance according to claims 3 or 4, characterized
    because, in the matrix of inductors (22a), the inductors (18a-q) i, j-th of equal i or 35 of equal j are adjacent to each other.
    26
    image2
    [6]
    6. Home appliance device 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 (10f-q) and column connection elements (12f-q) is greater than one in the quantity N x M of heating matrix elements (16f-q).
    [8]
    8. Home appliance device according to one of the preceding claims, characterized in that the heating matrix element (16a; 16b; 16p; 16q) i, jth has at least one diode (24a; 24b; 24p; 24q) i, j-th, whereby the inductor (18a; 18b; 18p; 18q) i, j-th is connected at least
    5
    10
    15 with the row connection element (10a; 10b; 10p; 10q) i-th.
    [9]
    9. Home appliance device according to one of the preceding claims, characterized in that the heating matrix element (16a-k) i, jth has at least one other diode (26a-k) i, jth, by means of the which inductor
    20 (18a-k) i, j-th is connected at least with the j-th column connection element (12a-k).
    [10]
    10. Home appliance device according to one of the preceding claims, characterized in that the heating matrix element (16a-q)
    25 i, j-th has at least one capacity (28a-q) i, j-th, whereby the inductor (18a-q) i, j-th 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 claims set forth
    30 above, characterized by an amount M of column diodes (36a-f; 36h; 36p; 36q), where the column diode (36a-f; 36h; 36p; 36q) jth connects at least the connecting element column (12a-f; 12h; 12p; 12q) jth with at least one reference potential (30a-f; 30h; 30p; 30q) common to column connection elements (12a-f; 12h; 12p ; 12q).
    35
    [12]
    12. Home appliance device according to one of the preceding claims, characterized by an amount N of row diodes (34a-k), wherein the
    27
    image3
    row diode (34a-k) ith connects at least the row connection element (10ak) ith with at least one other reference potential (32a-k) common to the row connection elements (10a-k ).
    5
    [13]
    13. Home appliance device according to one of the preceding claims, 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. Home 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 is
    10
    15 originates in 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
    20 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 battery recognition mode of
    25 cooking (40a) to detect a characteristic curve (46a, 47a) of an inductor discharge process (18a-q) i, jth 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.
    28
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    同族专利:
    公开号 | 公开日
    US20190274190A1|2019-09-05|
    US11153940B2|2021-10-19|
    CN110063090B|2021-06-08|
    EP3556180B1|2020-11-04|
    WO2018116053A1|2018-06-28|
    EP3556180A1|2019-10-23|
    ES2673131B1|2019-03-28|
    CN110063090A|2019-07-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1997019298A1|1995-11-21|1997-05-29|Aktiebolaget Electrolux|A cooking surface with controls|
    US20040144769A1|2003-01-20|2004-07-29|Cristiano Pastore|Electric cooking hob and method for determining the location of cooking utensils on it|
    US20110272397A1|2009-01-20|2011-11-10|BSH Bosch und Siemens Hausgeräte GmbH|Hob having at least one heating zone having several heating elements|
    EP2680668A1|2011-02-21|2014-01-01|Mitsubishi Electric Corporation|Induction-heating cookware|
    DE102012201236A1|2011-02-25|2012-08-30|BSH Bosch und Siemens Hausgeräte GmbH|Calibrating device for calibrating home appliance e.g. matrix induction hob, has control unit calibrating reference value of sensing unit designed as matrix sensor and controlling inductance characteristics of inductor in induction hob|
    WO2013033332A1|2011-08-30|2013-03-07|Watlow Electric Manufacturing Company|System and method for controlling a thermal array|
    EP2914060A1|2012-10-25|2015-09-02|Panasonic Intellectual Property Management Co., Ltd.|Induction heating device|
    DE102014224051A1|2014-11-25|2016-05-25|E.G.O. Elektro-Gerätebau GmbH|Induction hob and method for controlling an induction hob|
    US5658478A|1994-05-03|1997-08-19|Roeschel; Hans E.|Automatic heating assembly with selective heating|
    EP0862174A1|1997-02-27|1998-09-02|Lite-On Technology Corp.|A disk loading device for an optical disk driver|
    IT1319292B1|2000-11-08|2003-10-10|Whirlpool Co|DEVICE TO DETECT THE PLACEMENT OF COOKING TOOLS ON A COOKING HOB WITH DISCRETE AND DISTRIBUTED HEATING ELEMENTS.|
    EP1303168B1|2001-10-12|2016-03-16|Whirlpool Corporation|Cooking hob with discrete distributed heating elements|
    ES2382862B1|2009-10-26|2013-05-08|BSH Electrodomésticos España S.A.|COOKING HOB WITH AT LEAST TWO HEATING ELEMENTS AND A POWER ELECTRONICS PROVISION|
    DE102011087216A1|2011-11-28|2013-05-29|BSH Bosch und Siemens Hausgeräte GmbH|Cooktop i.e. glass ceramic stove top, has operating element for selecting cooking area and arranged in operating area, and sensor device i.e. camera, provided for detecting position of operating element and selected cooking area|
    EP2779788B1|2013-03-11|2015-08-19|Electrolux Appliances Aktiebolag|A method for assigning induction coils of an induction cooking hob and an induction cooking hob|
    WO2015015375A1|2013-08-02|2015-02-05|BSH Bosch und Siemens Hausgeräte GmbH|Hob apparatus|
    CN104754789B|2013-12-25|2016-08-17|美的集团股份有限公司|The electromagnetic heater of Intelligent Recognition pan size and control method thereof|
    DE102014206458A1|2014-04-03|2015-10-08|E.G.O. Elektro-Gerätebau GmbH|Induction heater and induction hob|
    PL3170363T3|2014-07-15|2018-10-31|Arçelik Anonim Sirketi|System and method for improving noise performance of multi-zone quasi-resonant inverter induction heater|
    CN205454134U|2016-04-09|2016-08-10|诸暨市知联电子科技有限公司|Electromagnetic induction heating's system of cooking|US20190327792A1|2018-04-23|2019-10-24|Whirlpool Corporation|Control circuits and methods for distributed induction heating devices|
    WO2021069219A1|2019-10-08|2021-04-15|BSH Hausgeräte GmbH|Cooking appliance|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201631615A|ES2673131B1|2016-12-19|2016-12-19|DOMESTIC COOKING DEVICE FOR INDUCTION WITH A MATRIX OF HEATING ELEMENTS|ES201631615A| ES2673131B1|2016-12-19|2016-12-19|DOMESTIC COOKING DEVICE FOR INDUCTION WITH A MATRIX OF HEATING ELEMENTS|
    US16/334,030| US11153940B2|2016-12-19|2017-12-12|Domestic appliance device|
    CN201780078383.6A| CN110063090B|2016-12-19|2017-12-12|Household appliance device|
    PCT/IB2017/057812| WO2018116053A1|2016-12-19|2017-12-12|Domestic appliance device|
    EP17822459.8A| EP3556180B1|2016-12-19|2017-12-12|Domestic appliance device|
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