Electrolux Home Products Corporation N.v.

Electrolux Appliances Aktiebolag

Andrea Rossi

Laurent Jeanneteau

Alex Viroli

Massimo Nostro

Thibaut Rigolle

Svend Erik Christiansen

Massimo Zangoli

Ulrich Häutle

Filippo Milanesi

Luca Zannoni

Gerhard Klein

Chunlong Xu

Emanuel Urgese

Claudio Paolini

Enrico Valentini

Arturo Negretti

Andrea Zangoli

Adriano Scotto D'Apollonia

Lukasz Wasinkiewicz

Jacek Jurek

Elia Schiaratura

Michele Forti

Diana Valerio

Lucia Zannoni

Andrea Zangolli

The disclosure relates to a power supply circuit for a cooking device, in particular for an induction cooking device, more particularly for an induction hob, wherein the power supply circuit includes a single frequency adapting unit, in particular a filtering unit, for adapting at least one external supply signal into a single or at least one internal AC supply signal; at least one DC signal generating unit for converting the one or at least one internal AC supply signal into at least one signal component of an internal DC supply signal; and at least one heating frequency generating unit for converting one or at least one DC supply signal supplied by at least one DC signal generating unit into a heating frequency signal for supplying at least one heating unit with electrical power.

Power supply circuit for a cooking device and cooking device

A method for controlling an induction cooking hob with a pot detection system and a user interface. The method includes the steps of activating the induction cooking hob by touching a main switch by a user; starting automatically the pot detection system by a control unit of the induction cooking hob; and detecting at least one pot and/or pan on a cooking surface of the cooking hob or detecting if no pot or pan is placed on said cooking surface, by the pot detection system; deactivating the pot detection system after a predetermined time interval if no pot or pan or if no further pot or pan, respectively, has been detected on the cooking surface within the time interval; activating a deactivation indicator showing to the user that the pot detection system is deactivated, and providing an opportunity to reactivate the pot detection system by the user.

Method for controlling an induction cooking hob with a pot detection system and a control unit for controlling an induction cooking hob with a pot detection system

A hob and methods for operating such a hob. The hob includes a cooking surface adapted to receive a number of pots. A user interface allows a user to select and adjust at least one parameter of a cooking zone associated to a pot while indicating the number of pots on the selected cooking zone and a pot detection unit to detect the presence and non-presence of pots on the cooking surface. The hob further includes a control unit that cooperates with the pot detection unit and the user interface to control the function of commands received through the user interface. The control unit can cause a selection of a certain cooking zone and provide a corresponding indication that the certain cooking zone is from now on selected, if temporal interruption of a presence of a pot on the certain cooking zone was detected.

Hob and methods for operating such a hob

An induction generator is connected to a three-phase mains. The induction generator includes a control unit () connected to a current transformer (), on one (L) of the lines (L, L, L) of the three-phase mains. The induction generator includes a number of power sections (). Each power section () supplies one of the induction coils (). A control unit () estimates and corrects harmonic distortions of the mains current via the current transformer (). The power transferred to a heated object as a function of the frequency is stored in a memory of the control unit (), so that the heated object is identifiable by its frequency-power characteristic. The frequency spectrum of the transferred power related to a harmonic distortion in the line (L) is stored in the memory () if the distortion exceeds a predetermined limit. The harmonic distortions are corrected by the control unit () if a heated object with the frequency-power characteristic related to the harmonic distortion is detected.

Induction generator for induction heating devices and a method for the operation of an induction generator for induction heating elements

An induction cooking hob with a pot detection device. The hob includes a cooking surface having cooking areas and/or cooking zones. The hob includes a user interface having a switch element and a display. The hob includes a control unit for controlling the cooking area(s) and/or the cooking zone(s). The pot detection device checks, if a cooking vessel is placed on the cooking area(s) and/or cooking zone(s). The control unit switches off the cooking area(s) and/or cooking zone(s), if the pot detection device has identified that the cooking vessel has been removed from the cooking area(s) and/or the cooking zone(s). The control unit stores a cooking mode of the cooking area(s) and/or cooking zone(s), which have been switched off. The display indicates that the cooking area(s) and/or cooking zone(s) have been switched off. The switch element restarts the cooking area(s) and/or cooking zone(s) in the same cooking mode.

Induction cooking hob with a pot detection device and a method for operating an induction cooking hob

The invention relates to an interaction device (), comprising a) a first input unit () with a first sensitive surface, especially a touch display, and a first sensor unit, b) a second input unit (-) with a second sensitive surface and a second sensor unit, c) wherein the second input unit (-) is used for protection of the first input unit (), especially against overheating and/or mechanical damaging. Furthermore, the invention relates to a glass ceramic hob (), especially induction cooking hob, with an interaction device () according to the invention a) wherein preferably the interaction device () is arranged in a side and/or edge area of the glass ceramic hob and/or arranged at the lower surface of the glass ceramic hob () and/or b) wherein preferably the glass ceramic hob comprises a fan for ventilation. Furthermore, the invention relates to a method for protection of an input unit, preferably for an interaction device and/or a glass ceramic hob according to the invention, comprising a) a first input unit () with a first sensitive surface, especially a touch display, and a first sensor unit, b) a second input unit (-) with a second sensitive surface and a second sensor unit, c) wherein the second input unit protects the first input unit, d) wherein after an input has been detected by the second input unit, especially after a preselected threshold value has been exceeded, e) the input value is compared with at least one preselected threshold value, f) wherein the at least one threshold value is preferably larger than a threshold value generated by the press or the touch of a finger, g) wherein after exceeding the at least one threshold value, g1) the first input unit () is turned off and/or g2) the heating energy for the glass ceramic hob, especially the induction current, is turned off to decrease the temperature and/or g3) an alarm is generated, especially an optical or acoustical alarm, to warn the operator and/or g4) the speed of the fan is increased to decrease the temperature.

Interaction device

The present invention relates to a keyboard with a plurality of sensitive key elements () arranged on said keyboard according to a predetermined scheme. Each of the key elements () provides an analogue electric signal (UUU). The analogous electric signal (UUU) depends on the position of a fingertip. A contact surface of the key element () is subdivided into zones (A, B, C, D). The zones (A, B, C, D) are defined in such a way, that the zones (A, B, C, D) have different distances from the adjacent key elements (). Each zone (A, B, C, D) corresponds with a range of relationships between the signal (U) of the key element () and the signal (UU) of at least one adjacent key element ().

Keyboard with a plurality of sensitive key elements

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Forli, Italy

Andrea Rossi