公开(公告)号：US20230094391A1

公开(公告)日：2023-03-30

申请号：US17910825

申请日：2021-03-04

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Alex VIROLI ,  Andrea ROSSI ,  Laurent JEANNETEAU ,  Massimo NOSTRO ,  Massimo ZANGOLI ,  Svend Erik CHRISTIANSEN

IPC: H05B6/06 ,  G01P15/18 ,  H05B6/12

Abstract: The present invention relates to a household appliance (1), in particular to a cooking hob, which comprises or is connected to an acceleration detection and/or measuring means (11) and a control unit (23) for controlling operating processes. The acceleration detection and/or measuring means (11), which may be an acceleration sensor and particularly a gravity sensor, is adapted for a detection of an acceleration of a section or a reference point of a wall or a panel (3) of the household appliance (1). The household appliance (1) may comprise a user interface (9) for providing information to a user, particularly status information, and/or for receiving input, particularly of control commands or data input, from the user. The acceleration detection and/or measuring means (11) is connected to the control unit (23) and/or, if applicable, to the user interface (9) for an exchange of data, and forms a trigger element for the control unit (23) and/or, if applicable, for the user interface (9). Further, the acceleration detection and/or measuring means (11) is adapted to provide a trigger signal for a control of a function and/or an operating process in the household appliance (1). Further, the present invention also relates to a method for controlling a household appliance (1), in particular a cooking hob. According to the invention, a function and/or an operating process in or of the household appliance (1) is triggered by an acceleration detection and/or measuring means (11), particularly by an acceleration sensor, more particularly by a gravity sensor, as a result of a detection of an acceleration of a section or a reference point of a wall or a panel (3) of the household appliance (1).

公开(公告)号：US20220151035A1

公开(公告)日：2022-05-12

申请号：US17433635

申请日：2020-02-20

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Massimo ZANGOLI ,  Massimo NOSTRO ,  Alex VIROLI ,  Andrea ROSSI ,  Enrico VALENTINI ,  Emanuel URGESE

IPC: H05B6/06 ,  H05B6/12 ,  H05B6/04

Abstract: The invention relates to a power supply circuit (1, 2) for a cooking device, in particular for an induction cooking device, more particularly for an induction hob (80), wherein the power supply circuit is comprising—a, in particular a single, frequency adapting unit (20), in particular filtering unit, for adapting at least one external supply signal (11, 12) into a single or at least one internal AC supply signal (15, 16; 17, 18),—and at least one, at least two, two, at least three or three DC signal generating units (25, 30, 35), each for converting the one or at least one internal AC supply signal (15, 16; 17, 18) into at least one signal component, in particular one or two signal components, of an internal DC supply signal (40, 41, 42, 43, 44; 45, 46) and —at least one, at least two, in particular two, least three, three, at least four or four, heating frequency generating units (50, 55), each for converting one or at least one DC supply signal (40, 41; 42, 43; 44, 46; 45, 46) supplied by at least one DC signal generating unit (25, 30, 35) into a heating frequency signal (61, 62, 63, 64) for supplying at least one heating unit (70, 75) with electrical power.

公开(公告)号：US20240040674A1

公开(公告)日：2024-02-01

申请号：US18265918

申请日：2021-11-24

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Emanuel URGESE ,  Alex VIROLI ,  Massimo NOSTRO ,  Massimo ZANGOLI ,  Filippo MILANESI ,  Giacomo CORSI ,  Alan MENGOZZI

IPC: H05B6/06 ,  H05B6/12

CPC classification number: H05B6/065 ,  H05B6/1272

Abstract: There is described an induction cooking hob (1, 1′, 1″) comprising at least one cooking zone (2) for heating a cooking vessel. The cooking zone (2) comprises at least a first induction coil (3) and a second induction coil (4), the first induction coil (3) and the second induction coil (4) being configured to heat the cooking vessel alone or in collaboration with one another. The induction cooking hob (1, 1′, 1″) further comprises a power unit (6) operatively connected to and configured to power the first induction coil (3) and the second induction coil (4) and a control interface (5) configured to receive a requested power from a user, the requested power defining and/or being indicative about the power to be delivered to the cooking vessel. The power unit (6) is configured to power the first induction coil (3) and the second induction coil (4) such that the first induction coil (3) delivers, in use, a first power ranging between a first minimum deliverable power and a first maximum deliverable power and the second induction coil (4) delivers, in use, a second power ranging between a second minimum deliverable power and a second maximum deliverable power. The power unit (6) is configured to power the first induction coil (3) and the second induction coil (4) according to a respective powering scheme chosen from a set of powering schemes. The power unit (6) is configured to choose the respective powering scheme in function of the requested power and the first minimum deliverable power, the second minimum deliverable power, the first maximum deliverable power and the second maximum deliverable power.

公开(公告)号：US20230007740A1

公开(公告)日：2023-01-05

申请号：US17782292

申请日：2020-11-30

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Emanuel URGESE ,  Massimo NOSTRO ,  Alex VIROLI ,  Massimo ZANGOLI ,  Filippo MARTINI ,  Fabio ANGELI

IPC: H05B6/12 ,  H05B6/06 ,  H02M7/523

Abstract: Method to control a quasi-resonant inverter (13) in an induction cooking appliance (1) provided with induction heating coil (4). The quasi-resonant inverter (13) comprises a switching device (21) electrically connected to the induction heating coil (4) by a node (20) having a first voltage (VC(t)) which is indicative of the voltage across the power switching device (21). The method comprising the steps of: providing to the switching device (21) an enabling signal (K1) comprising a plurality of pulses, in order to switch-on and switch-off said switching device (21) for a switch-on period (tON) and a switch-off period (tOFF), determining a second voltage (VCmin) indicative of the minimum value of the first voltage (VC(t)) during the switch- off period (tOFF), regulating the switch-off period (tOFF) based on the second voltage (VCmin), and regulating the enabling signal (K1) based on the regulated switch-off period (tOFF).

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).

公开(公告)号：US20220369431A1

公开(公告)日：2022-11-17

申请号：US17623965

申请日：2020-06-26

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Alex VIROLI ,  Massimo NOSTRO ,  Massimo ZANGOLI ,  Filippo MILANESI ,  Fabio ANGELI ,  Svend Erik CHRISTIANSEN

IPC: H05B6/06

Abstract: The present invention relates to a method for controlling an induction cooking hob, wherein said method comprises an operation mode for estimating the energy efficiency (EE), and wherein said operation mode includes the steps of: a) estimating (12) the dissipated electric energy (ED) of the induction cooking hob, b) comparing (14) the dissipated electric energy (ED) with a threshold value (EDthr) for said dissipated electric energy (ED), c) maintaining (16) the current working parameters of the induction cooking hob, if the dissipated electric energy (ED) is not bigger than the threshold value (EDthr), d) changing (18) the current working parameters, if the dissipated electric energy (ED) is bigger than the threshold value (EDthr), and e) repeating the steps a) and b) and then c) or d), respectively, after a predetermined time period.

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.