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1. 发明申请

US20220248505A1 METHOD FOR CONTROLLING THE PROVISION OF ELECTRIC POWER TO AN INDUCTION COIL 有权
公开(公告)号：US20220248505A1
公开(公告)日：2022-08-04
申请号：US17625926
申请日：2020-07-15
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Chunlong XU , Alex VIROLI , Massimo NOSTRO , Massimo ZANGOLI
IPC分类号： H05B6/06 , H05B6/12
摘要： The invention relates to a method for controlling the provision of electric power to an inductive element, in particular an induction coil (L), of an induction cooking appliance (1), the induction cooking appliance (1) comprising a circuitry (10) with an input (11), at least one switching element (S) for providing pulsed electric power to the inductive element, in particular the induction coil (L) and a capacitive element, in particular a capacitor (C) being connected in parallel, in particular in series, to the switching element (S), the method comprising the steps of: —receiving rectified AC-voltage (Vin) at the input (11) of the circuitry (10); —discharging, in particular during a first section/phase (P1), the capacitive element, in particular the capacitor (C) in order to reduce the voltage provided to the switching element (S), in particular during a first period of rectified AC-voltage (Vin); —after at least partially discharging the capacitive element, in particular the capacitor (C), starting, in particular as a second section/phase (P2), a switching operation of the switching element (S), in particular during a second period of rectified AC-voltage (Vin); —stopping the switching operation after a switching operation time, in particular during the second period of rectified AC-voltage (Vin); —iterating the steps of discharging of capacitor (C), starting of switching operation and stopping of switching operation, in particular immediately subsequently, in subsequent periods of rectified AC-voltage (Vin).

2. 发明申请

US20230094391A1 HOUSEHOLD APPLIANCE WITH ACCELERATION DETECTION AND/OR MEASURING MEANS AND CONTROL UNIT AND METHOD FOR CONTROLLING A HOUSEHOLD APPLIANCE 有权
公开(公告)号：US20230094391A1
公开(公告)日：2023-03-30
申请号：US17910825
申请日：2021-03-04
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Alex VIROLI , Andrea ROSSI , Laurent JEANNETEAU , Massimo NOSTRO , Massimo ZANGOLI , Svend Erik CHRISTIANSEN
IPC分类号： H05B6/06 , G01P15/18 , H05B6/12
摘要： 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).

3. 发明申请

US20220151035A1 POWER SUPPLY CIRCUIT FOR A COOKING DEVICE AND COOKING DEVICE 有权
公开(公告)号：US20220151035A1
公开(公告)日：2022-05-12
申请号：US17433635
申请日：2020-02-20
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Massimo ZANGOLI , Massimo NOSTRO , Alex VIROLI , Andrea ROSSI , Enrico VALENTINI , Emanuel URGESE
IPC分类号： H05B6/06 , H05B6/12 , H05B6/04
摘要： 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.

4. 发明申请

US20200022227A1 METHOD FOR BOIL DETECTION AND INDUCTION HOB INCLUDING A BOIL DETECTION MECHANISM 审中-公开
公开(公告)号：US20200022227A1
公开(公告)日：2020-01-16
申请号：US16335722
申请日：2017-08-16
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Nicola TERRACCIANO , Laurent JEANNETEAU , Alex VIROLI , Massimo NOSTRO , Svend Erik CHRISTIANSEN
IPC分类号： H05B6/06 , H05B1/02 , F24C15/10 , H05B6/12
摘要： The invention relates to a method for boil detection at a heating zone of an induction hob (1), the method comprising the steps of: —disabling (S110) a power control mechanism of the induction hob by setting the frequency of the AC-current provided to an induction coil of the induction hob to a fixed value; —measuring (S120) values of an electrical parameter provided within the induction hob (1); —interpolating (S130) the measured electrical parameter values by gathering a plurality of values of the electrical parameter within a time window and calculating the average value of said gathered plurality of values thereby obtaining interpolated electrical parameter values. —calculating (S140) a gradient measure indicative for the differential change of the interpolated electrical parameter values over time; —determining (S150) the boil point based on the calculated gradient measure.

5. 发明申请

US20230007740A1 METHOD AND SYSTEM TO CONTROL A QR-INVERTER IN A INDUCTION COOKING APPLIANCE 有权
公开(公告)号：US20230007740A1
公开(公告)日：2023-01-05
申请号：US17782292
申请日：2020-11-30
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Emanuel URGESE , Massimo NOSTRO , Alex VIROLI , Massimo ZANGOLI , Filippo MARTINI , Fabio ANGELI
IPC分类号： H05B6/12 , H05B6/06 , H02M7/523
摘要： 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).

6. 发明申请

US20220369431A1 METHOD FOR CONTROLLING AN INDUCTION COOKING HOB 有权
公开(公告)号：US20220369431A1
公开(公告)日：2022-11-17
申请号：US17623965
申请日：2020-06-26
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Alex VIROLI , Massimo NOSTRO , Massimo ZANGOLI , Filippo MILANESI , Fabio ANGELI , Svend Erik CHRISTIANSEN
IPC分类号： H05B6/06
摘要： 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.

7. 发明申请

US20210410237A1 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
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Laurent JEANNETEAU , Alex VIROLI , Massimo NOSTRO , Federico BALEST
IPC分类号： H05B6/06 , H05B6/12
摘要： 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.

8. 发明申请

US20170307224A1 Method For Performing A Treatment By A Domestic Appliance And For Processing Information Of Said Treatment By A Mobile Computer Device 审中-公开
公开(公告)号：US20170307224A1
公开(公告)日：2017-10-26
申请号：US15515919
申请日：2015-11-26
申请人： Electrolux Appliances Aktiebolag
发明人： Alex VIROLI , Massimo NOSTRO , Filippo MARTINI , Laurent JEANNETEAU
IPC分类号： F24C7/08 , A47L15/00 , D06F39/00 , H05B6/64
CPC分类号： F24C7/085 , A47L15/0018 , A47L15/0063 , D06F39/005 , H05B6/6435 , H05B6/6441
摘要： A method for performing a treatment by a domestic appliance having a programmable control unit and a graphic display. The method includes executing a program for performing the treatment, encoding information about the appliance, the program and/or a current status of the appliance, generating a two-dimensional code representing the encoded information, and displaying the code on the graphic display, so that the code is detectable by a camera or scanner of a mobile computer device. Further, a method for processing information about a treatment performed by a domestic appliance, wherein the information is encoded by a two-dimensional code on a graphic display of the appliance. The method includes detecting the two-dimensional code by a camera or scanner, decoding the code, and indicating the decoded information on a display, and/or transmitting the decoded information to a computer device via the internet, and/or processing the decoded information by an application software.

9. 发明申请

US20220353959A1 METHOD FOR DETERMINING PROPERTIES OF ELECTRICAL CURRENT PROVIDED TO AN INDUCTION HEATING ELEMENT 有权
公开(公告)号：US20220353959A1
公开(公告)日：2022-11-03
申请号：US17764271
申请日：2020-09-22
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Alex VIROLI , Laurent JEANNETEAU , Massimo NOSTRO , Massimo ZANGOLI , Svend Erik CHRISTIANSEN
IPC分类号： H05B6/12 , H05B6/68
摘要： The invention relates to a method for determining properties of the electrical current provided to an induction heating element (2) of an induction cooking appliance (1), the induction cooking appliance (1) comprising a heating power energy unit (3) including a heating power generator (4) with at least one switching element (5) adapted to provide pulsed electric power to said induction heating element (2), the induction cooking appliance (1) further comprising an oscillating circuit (6) comprising at least one resonance capacitor (6.1, 6.2), said induction heating element (2) being electrically coupled with said heating power generator (4) and said oscillating circuit (6), the induction cooking appliance (1) further comprising a control entity (8), wherein an input of a measurement circuit (9) is coupled with a node of the heating power energy unit (3).

10. 发明申请

US20210212176A1 METHOD FOR CONTROLLING A COOKING ZONE OF AN INDUCTION COOKING HOB 有权
公开(公告)号：US20210212176A1
公开(公告)日：2021-07-08
申请号：US17059938
申请日：2019-06-03
申请人： ELECTROLUX APPLIANCES AKTIEBOLAG
发明人： Frederico BALEST , Laurent JEANNETEAU , Alex VIROLI , Massimo NOSTRO
IPC分类号： H05B6/12 , H05B6/06
摘要： The present invention relates to a method for controlling a cooking zone (16) of an induction cooking hob, wherein said cooking zone (16) comprises at least one induction coil (16) and is supplied by a generator (14) including a power switch. The method is performed by controlling the power switch by a gate driving signal (18) including a deactivation pulse length (Toff) and an activation pulse length (Ton). A switching period (T) of the gate driving signal (18) is given by the sum of the activation pulse length (Ton) and deactivation pulse length (Toff). A driving frequency (f) of the power switch is the reciprocal value of said switching period (T). The deactivation pulse length (Toff) depends on the resistance (28) and the inductance (30) of the induction coil (16). The activation pulse length (Ton) is varied according to a requested power for the cooking zone (16). A series of constant activation pulse length (Ton) is activated in order to determine the optimal deactivation pulse length (Toff).

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