Electrolux Home Products Corporation N.v.

Electrolux Appliances Aktiebolag

Thibaut Rigolle

Laurent Jeanneteau

Alex Viroli

Svend Erik Christiansen

Massimo Zangoli

Andrea Fattorini

Andrea Rossi

Mario Barocci

Erik Svend Christiansen

Massimo Nostro

Michael Herzog

Ulrich Häutle

Filippo Martini

Gianluca Venturini

Martin Knausenberger

Gerhard Klein

Thomas Dehnert

Martin Kessler

Jeanneteau Laurent

Claudio Paolini

Andrea Zangoli

Arturo Negretti

Friedrich Beck

Henrike Hüther

Klaus Schlötterer-Fratoianni

Andrea Grassano

Ulrich HÄUTLE

Svend-Erik Christiansen

Laurent Jeannetau

Andrea Zangolli

Ha Min Chung

Laurent Jeannneteau

The invention relates to an assembly unit for an induction hob with at least one induction element has a) at least one carrying element for carrying the circuits and/or devices for supplying the at least one induction element. The at least one carrying element has a base area and side areas protruding upwards from the base area. The at least one carrying element is connectable with at least one further carrying element along a side area. The side areas have connection elements for connection with the at least one further carrying element, preferably at least one power wire slot for inserting at least one power supply wire and/or preferably at least one signal wire slot for inserting at least one signal wire. Furthermore, the invention a method for manufacturing an assembly unit is described.

Assembly unit for an induction hob, induction hob and method for manufacturing an assembly unit

A method for controlling a cooking hob with one or more induction coils covered by a cookware and forming a cooking zone. All induction coils of the cooking zone are alternately activated. The method includes setting an average power to be transferred to the cookware by a user, determining a frequency, estimating a maximum average power if all induction coils of the cooking zone would be activated with said frequency, estimating a percentage power defined as quotient between the set average power and the estimated maximum average power, estimating a calculated number of coils defined as product of the number of coils within the cooking zone and the percentage power, defining a minimum number of simultaneously activated coils within the cooking zone by an integer value of the calculated number, and defining a temporal activation of a further one of the coils by a fractional part of the calculated number.

Method for controlling an induction cooking hob with a plurality of induction coils and an induction cooking hob

A modular electronic and/or electric apparatus including a plurality of circuit units connected by an internal communication bus. The circuit unit includes at least two serial resistor elements forming a voltage divider. The resistor elements of the circuit units are serially connected and form an ID wire. The ID wire is interconnected between a first voltage terminal and a second voltage terminal. The circuit unit comprises at least one analog-digital converter. A connection point between two resistor elements of one circuit unit is connected to an analog input terminal of the analog-digital converter. A digital output terminal of the analog-digital converter is connected to the internal communication bus. The modular electronic and/or electric apparatus includes a master unit connected to the internal communication bus. In particular, the present invention relates to a modular domestic appliance including a plurality of circuit units connected by an internal communication bus.

Modular electronic apparatus including a plurality of circuit units connected by an internal communication bus

The invention relates to an electronic system comprising a plurality of circuit lines and an error detection component for detecting errors on and between the plurality of circuit lines, wherein each circuit line having a voltage different to ground level, the error detection component being adapted to perform a test routine comprising the steps of: &#x2014;selecting one circuit line out of the plurality of circuit lines; &#x2014;determining the voltage of the selected circuit line and storing the voltage value; &#x2014;discharging the selected circuit line to ground level; &#x2014;iteratively repeating the aforementioned steps of selecting a circuit line, determining and storing its voltage and discharging for further circuit lines; &#x2014;comparing the stored voltage values associated with the respective circuit lines with a threshold value; and &#x2014;generating an error indicator if at least one stored voltage value is below the threshold value.

Electronic system and method for testing capacitive circuit lines

The present invention relates to an induction hob with a number of induction coils () on a cooking surface () and an apparatus for determining the temperatures on the induction coils (). The induction coils () are arranged on the cooking surface () according to a predetermined scheme. At least one temperature sensor () is arranged within an intermediate space between two or more induction coils (). The at least one temperature sensor () and the central portions of at least two adjacent induction coils () are thermally connected by heat conductor elements (). The temperature sensors () are electrically connected to at least one evaluation circuit for determining the temperatures of the adjacent induction coils ().

Induction hob with induction coils and an apparatus for determining the temperatures on the induction coils

The present invention relates to a half bridge induction heating generator, comprising at least one power terminal () provided for a direct current voltage, at least one ground terminal (), and four capacitors (C, C, C, C) forming a bridge circuit between the power terminal () and the ground terminal (). The induction heating generator comprises further an induction coil (L) interconnected in the center of said bridge circuit, two semiconductor switches (Q, Q) connected in each case parallel to one of the both capacitors (C, C) on one side of the bridge circuit, and a further capacitor (CI) interconnected between the power terminal () and the ground terminal (). The four capacitors (C, C, C, C) of the bridge circuit and the further capacitor (C) are arranged inside a common housing (), wherein said housing () and the capacitors (C, C, C, C, C) form a capacitor assembly, which is a single component and mounted or mountable on and electrically connected or connectable to a printed circuit board. Further, the present invention relates to a capacitor assembly provided for said half bridge induction heating generator.

Half bridge induction heating generator and a capacitor assembly for a half bridge induction heating generator

The present invention relates to an induction hob with a cooking surface () and a number of induction coils () within said cooking surface (). The induction coils () are arranged on the cooking surface () according to predetermined scheme, so that at least two induction coils () can be covered by a standard cooking vessel (). Each induction coil () is connected to at least one induction generator being switched or switchable between a high power and a low power. Each induction generator is separately controllable, so that the induction coils () are switched or switchable between the high power and the low power. At least one control unit is provided for controlling the individual induction coils () according to a predetermined time pattern. Further, the present invention relates to a corresponding method for controlling the induction hob.

Induction hob and a method for controlling an induction hob

A cooking hob includes a transparent or semi-transparent top panel and a cooking zone with a pot detector. A user interface is below the top panel and includes touch switches and a touch slide. A light source corresponds with the touch switch and the cooking zone. The light source indicates detection of a pot on the cooking zone by a first light signal during a predetermined time interval and indicates an activated state of the cooking zone by a second light signal and indicates the selected cooking zone and the activated state of the touch slide element by the first light signal. The touch slide is for adjusting the power and/or temperature of the indicated cooking zone within the time interval. The touch switch is for selecting the cooking zone and activating the touch slide. The touch slide is for adjusting the power and/or temperature of the selected cooking zone.

Cooking hob including a user interface

The present invention relates to an electric and/or electronic circuit including a printed circuit board (), at least one separate circuit board () and at least one power connector () for said printed circuit board (). The at least one power connector () is connected or connectable to a corresponding counterpart. A number of electric and/or electronic components () is sold at the separate circuit board (). The at least one separate circuit board () is connected to the printed circuit board () by a number of solder joints (). The solder joints () are connected to the separate circuit board () by a through-hole-technology. The solder joints () are connected to the printed circuit board () by SMD (surface mount device) technology. At least one power connector () is fastened at the separate circuit board () by the through-hole-technology.

Electric and/or electronic circuit including a printed circuit board, a separate circuit board and a power connector

A method for controlling an induction heating cooking apparatus, comprises the steps of a) transforming a supply current (I) having a base frequency, for example 50 Hz or 60 Hz, into an induction current (I) having a higher frequency than the base frequency of the supply current, b) feeding the induction current into at least one inductor of the induction heating cooking apparatus to generate a magnetic induction field, c) detecting a deviation or distortion of the actual shape or frequency spectrum of the supply current or a rectified supply current from a predetermined admissible shape or frequency spectrum lying outside of a pre-given tolerance range, d) adapting the induction current or the electrical power associated with the induction current until the detected deviation or distortion of the actual shape or frequency spectrum of the supply current or a rectified supply current from the predetermined shape or frequency spectrum lies within the pre-given tolerance range again.

Method and device for controlling an induction heating cooking apparatus

The present application in particular is directed to an induction coil assemblyadapted for an electric induction hob of a household or industrial type appliance. The induction coil assemblycomprises at least one induction coilwhich has at least one of ovoid and coiled ovoid windings

Induction coil assembly and induction hob cooking zone

A method for dynamic wave form correction includes providing an input power signal by an AC power source and rectifying the input power signal by a frequency converter into a half waves signal whose half wave is delimited by two subsequent zero-crossings. The time lag between the two zero-crossings defines a half wave duration. The frequency converter converts the half waves signal into a working current signal for supplying an induction heating device. In a frequency shifting operation, the frequency of the working signal is first increased from a first base frequency to a maximum frequency, and is then decreased to a second base frequency different from the first base frequency within a time period smaller than the half wave duration. A zero crossing of the half wave signal is passed within the frequency shifting operation. An arrangement for dynamic wave form correction of a power supply is also provided.

Method and arrangement for dynamic wave form correction

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 invention relates to a cooking device () for a cooking container (), a) wherein the cooking device () comprises at its lower surface () a curved, especially concave, cooking surface () adapted to the form of the cooking container (), b) wherein the cooking surface () comprises a first () and a second () partial surface, c) wherein the cooking container () comprises a first area () adjacent to the first partial surface () and a second area () adjacent to the second partial surface (), d) wherein the first area () is heated by a first induction element () and the second area () is heated by a second induction element (), e) wherein each induction element () comprises an individual heat sensor () and f) wherein at least the second induction element () can be controlled independently from the first induction element ().

Cooking device for a cooking container

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 ().

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Forli, Italy

Thibaut Rigolle