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    INDUCTION HOB
    1.
    发明申请
    INDUCTION HOB 有权

    公开(公告)号：US20220386425A1

    公开(公告)日：2022-12-01

    申请号：US17772550

    申请日：2020-10-26

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Michele FORTI ,  Massimo ZANGOLI ,  Laurent JEANNETEAU ,  Alex VIROLI

    IPC: H05B6/06 ,  H05B6/12

    Abstract: The invention relates to an induction-based cooking appliance comprising multiple heating power transferring elements (3a, 3b) and multiple heating power energy units (5a, 5b) for powering said heating power transferring elements (3a, 3b), each heating power energy unit (5a, 5b) comprising one or more power switching devices, in particular power transistors, for providing electrical power to the heating power transferring elements (3a, 3b), wherein: —said power switching devices, in particular power transistors, included in said multiple heating power energy units (5a, 5b) are wide bandgap power switching devices, in particular wide bandgap transistors, comprising more in particular semiconductor materials with a bandgap greater than 2 eV, and/or are configured to be operated in a first frequency range (FR1) and in a second frequency range (FR2) different or at least essentially identical, in particular identical, to the first frequency range (FR1); or—a first heating power transferring element (3a) is powered by a heating power energy unit (5a) comprising a first type (T1) of power switching device, in particular power transistor, adapted to be operated in a first frequency range (FR1) and a second heating power transferring element (3b) is powered by a heating power energy unit (5b) comprising a second type (T2) of power switching device, in particular power transistor, adapted to be operated in a second frequency range (FR2) different or at least essentially identical, in particular identical, to the first frequency range (FR1).

    METHOD FOR OPERATING AN INDUCTION HOB AND INDUCTION HOB
    2.
    发明申请
    METHOD FOR OPERATING AN INDUCTION HOB AND INDUCTION HOB 有权

    公开(公告)号：US20210410237A1

    公开(公告)日：2021-12-30

    申请号：US17469977

    申请日：2021-09-09

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Laurent JEANNETEAU ,  Alex VIROLI ,  Massimo NOSTRO ,  Federico BALEST

    IPC: H05B6/06 ,  H05B6/12

    Abstract: The invention relates to a method for operating an induction hob (1), the induction hob (1) comprising a power circuit portion (2) with at least one switching element adapted to provide pulsed electric power to an induction coil (3) and a control entity (4) for controlling operating parameters of the switching element, the method comprising the steps of: performing a control loop with control cycles in order to detect coupling changes between the induction coil (3) and a piece of cookware, said control cycles comprising the steps of: receiving frequency information (fcurr) and power information (Pcurr) at said control entity (4); calculating at least one relation coefficient (Ds′, Ds″) based on said frequency information (fcurr) and said power information (Pcurr); and comparing said relation coefficient (Ds′, Ds″) with a relation coefficient boundary, thereby deriving a comparison result; deciding, based on the comparison result, whether to: perform a new control cycle of said control loop or whether to stop said control loop and said provision of pulsed electric power to the induction coil (3) and restart said control loop after updating an operating parameter of the switching element.

    INDUCTION HOB COMPRISING AN ELECTROMAGNETIC INTERFERENCE FILTER
    3.
    发明申请
    INDUCTION HOB COMPRISING AN ELECTROMAGNETIC INTERFERENCE FILTER 审中-公开

    公开(公告)号：US20200253002A1

    公开(公告)日：2020-08-06

    申请号：US16652163

    申请日：2018-10-08

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Alex VIROLI ,  Simone SANTILANO ,  Laurent JEANNETEAU ,  Massimo ZANGOLI ,  Filippo MILANESI ,  Emanuel URGESE

    IPC: H05B6/04 ,  H02M1/44 ,  H01F27/24 ,  H01F27/28

    Abstract: Induction hob comprising an AC power input (2) and a power conversion entity (3) adapted to provide high frequency electric current to an induction coil, wherein an electromagnetic filtering section (1) is provided between said AC power input (2) and said power conversion entity (3), said electromagnetic filtering section (1) comprising common mode filtering means and differential mode filtering means, wherein said electromagnetic filtering section (1) comprises a closed magnetic core element (4) around which at least two coils (5, 6) are provided, said closed magnetic core element (4) and said coils (5, 6) providing said common mode filtering means, and wherein said differential mode filtering means are adapted to enable a direct magnetic flux between the coil ends (5.1, 5.2, 6.1, 6.2) of each coil (5, 6) in order to obtain differential mode filtering effect.

    SENSOR MEANS OR MODULE FOR DETERMINING A DISPLACEMENT OR DEFLECTION OR BENDING, HOUSEHOLD APPLIANCE AND METHOD FOR DETERMINING THE WEIGHT OF AN ITEM
    6.
    发明申请
    SENSOR MEANS OR MODULE FOR DETERMINING A DISPLACEMENT OR DEFLECTION OR BENDING, HOUSEHOLD APPLIANCE AND METHOD FOR DETERMINING THE WEIGHT OF AN ITEM 有权

    公开(公告)号：US20230137254A1

    公开(公告)日：2023-05-04

    申请号：US17913486

    申请日：2021-03-17

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Gerhard KLEIN ,  Ulrich HÄUTLE ,  Lukasz WASINKIEWICZ ,  Jacek JUREK ,  Elia SCHIARATURA ,  Emanuel URGESE ,  Michele FORTI ,  Svend Erik CHRISTIANSEN ,  Alex VIROLI ,  Andrea ROSSI ,  Laurent JEANNETEAU ,  Massimo NOSTRO ,  Massimo ZANGOLI ,  Diana VALERIO

    IPC: G01G19/56 ,  A47J27/00 ,  G01P15/135

    Abstract: The present invention relates to a sensor means (11, 35, 49, 71) or module for determining a particularly elastic displacement or deflection or bending of a panel (3), in particular a glass panel, or of a section of a panel or of an insert in relation to the panel (3). The sensor means (11, 35, 49, 71) or module and the panel (3) or said section thereof forming a weighing means, in particular a scale. The sensor means (11, 35, 49, 71) or module is adapted to be integrated in or allocated to a household appliance (1), in particular a cooking hob, more in particular an induction cooking hob, and comprises or is connected to at least one processing and/or interpretation and/or compilation means, preferably for providing a particular high sensor sensitivity and/or evaluation unit accuracy. Further, a household appliance (1) is disclosed which comprises an at least approximately horizontal panel (3), in particular a glass panel. The panel (3) is part of or is in functional connection with a scale for weighing an item (15) placed on the panel (3). Finally, the invention relates to a method for determining the weight of an item (15) on an at least approximately horizontal panel (3) of a household appliance (1), in particular on a top panel (3) of a cooking hob. An acceleration of a panel (3) section or of a panel reference point or reference area, in particular a reference point or a reference area on a panel surface (7), is estimated or determined during a displacement or deflection or bending of the panel section or the panel reference point or reference area due to a placing of the item (15) on the panel.

    CONNECTING ELEMENT FOR CONNECTING AN INDUCTION COIL TO A COIL CARRIER OF AN INDUCTION COOKING HOB
    7.
    发明申请
    CONNECTING ELEMENT FOR CONNECTING AN INDUCTION COIL TO A COIL CARRIER OF AN INDUCTION COOKING HOB 有权

    公开(公告)号：US20230073251A1

    公开(公告)日：2023-03-09

    申请号：US17988929

    申请日：2022-11-17

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Valerio VERDOLIVA ,  Alwin NEUKAMM ,  Claudio PAOLINI ,  Filippo MILANESI ,  Laurent JEANNETEAU ,  Massimo BANZATO ,  Agostino ROSSATO

    IPC: F24C7/06 ,  H05B6/12 ,  F16B5/06 ,  F16B21/08

    Abstract: The present invention relates to a connecting element (10) for connecting an induction coil (24) to a coil carrier (26) of an induction cooking hob. The connecting element (10) is made of an elastic material and formed as a single-piece part. The connecting element (10) includes a first snap-fit portion (12) connectable to a cut-out of the induction coil (24), so that the snap-fit portion (12) and the cut-out form a snap-in mechanism. The connecting element (10) includes a spring portion (14) arrangeable between the induction coil (24) and the coil carrier (26), so that the spring portion (14) provides a distance between the induction coil (24) and the coil carrier (26). The connecting element (10) includes at least one groove (16) enclosing at least partially the connecting element (10). The groove (16) is engageable with the cut-out of the induction coil (24). The connecting element (10) includes a second snap-fit portion (18) extending opposite to the first snap-fit portion (12). The second snap-fit portion (18) is connectable to a cut-out (32) of the coil carrier (26), so that the second snap-fit portion (18) and the cut-out (32) form a snap-in mechanism.

    METHOD FOR OPERATING AN INDUCTION HOB AND INDUCTION HOB
    8.
    发明申请
    METHOD FOR OPERATING AN INDUCTION HOB AND INDUCTION HOB 有权

    公开(公告)号：US20210267020A1

    公开(公告)日：2021-08-26

    申请号：US17255023

    申请日：2019-06-13

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Laurent JEANNETEAU ,  Alex VIROLI ,  Massimo NOSTRO ,  Federico BALEST

    IPC: H05B6/06 ,  H05B6/12

    Abstract: The invention relates to a method for operating an induction hob (1), the induction hob (1) comprising a power circuit portion (2) with at least one switching element adapted to provide pulsed electric power to an induction coil (3) and a control entity (4) for controlling operating parameters of the switching element, the method comprising the steps of: performing a control loop with control cycles in order to detect coupling changes between the induction coil (3) and a piece of cookware, said control cycles comprising the steps of: o receiving frequency information (fcurr) and power information (Pcurr) at said control entity (4); o calculating at least one relation coefficient (Ds′, Ds″) based on said frequency information (fcurr) and said power information (Pcurr); and o comparing said relation coefficient (Ds′, Ds″) with a relation coefficient boundary, thereby de-riving a comparison result; deciding, based on the comparison result, whether to: o perform a new control cycle of said control loop or whether to o stop said control loop and said provision of pulsed electric power to the induction coil (3) and re-start said control loop after updating an operating parameter of the switching element.

    COOKING HOB
    9.
    发明申请
    COOKING HOB 有权

    公开(公告)号：US20210259069A1

    公开(公告)日：2021-08-19

    申请号：US17256299

    申请日：2019-06-13

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Massimo NOSTRO ,  Alex VIROLI ,  Filippo MARTINI ,  Filippo MILANESI ,  Fabio ANGELI ,  Laurent JEANNETEAU

    IPC: H05B6/12 ,  H05B6/06

    Abstract: The invention relates to a cooking hob comprising at least one heating power transferring element (2) including multiple concentrically arranged windings (2.1-2.n), one or more heating power energy units (3.1-3.n) for powering said windings (2.1-2.n) of the heating power transferring element (2) and a control unit (4) configured to control said one or more heating power energy units (3.1-3.n), wherein the cooking hob (1) comprises detection means configured to determine the coverage of the windings (2.1-2.n) of the heating power transferring element (1) by a cookware item (5), wherein the control unit (4) is configured to balance the heat provided to the cookware item (5) by determining a rescaled electric power for the windings (2.1-2.n) of the heating power transferring element (2) based on power requests and information regarding the coverage of the windings (2.1-2.n) and to establish an operating cycle by determining a duty cycle for one or more windings (2.1-2.n) of the heating power transferring element (2), said duty cycle defining the activation time of the respective winding (2.1-2.n), wherein the duty cycle is chosen such that the mean electric power provided to the respective winding (2.1-2.n) within the operating cycle is equal or essentially equal to the rescaled electric power associated with said winding (2.1-2.n).

    METHOD FOR CONTROLLING TWO COOKING ZONES OF AN INDUCTION COOKING HOB
    10.
    发明申请
    METHOD FOR CONTROLLING TWO COOKING ZONES OF AN INDUCTION COOKING HOB 有权

    公开(公告)号：US20210212174A1

    公开(公告)日：2021-07-08

    申请号：US17059964

    申请日：2019-06-03

    Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

    Inventor： Frederico BALEST ,  Alex VIROLI ,  Laurent JEANNETEAU ,  Massimo NOSTRO

    IPC: H05B6/06 ,  G05B19/042

    Abstract: The present invention relates to a method for controlling a first cooking zone (18) and a second cooking zone (20) of an induction cooking hob, wherein each cooking zone (18, 20) is supplied by a corresponding generator (14, 16), and wherein the method comprises the steps of inputting a requested power (P1, P2) for each cooking zone (18, 20), activating a one-zone mode, if the requested power (P1, P2) for one cooking zone (18, 20) is bigger than zero and the requested power (P1, P2) for the other one cooking zone (18, 20) is zero, and activating a two-zones mode, if the requested powers (P1, P2) for both cooking zones (18, 20) are bigger than zero. If the two-zones mode is activated, then an algorithm (48, 50, 52, 54) is selected from a set of algorithms (48, 50, 52, 54) in dependence of the requested powers (P1, P2) for the cooking zones (18, 20).

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