WO2015015362A1

WO2015015362A1 - Cooking hob device

Info

Publication number: WO2015015362A1
Application number: PCT/IB2014/063208
Authority: WO
Inventors: Ignacio Garde Aranda; Oscar Gracia Campos; Javier Herrera Rodriguez; Alfonso Lorente Perez; Ramon Peinado Adiego; Alberto Ignacio SIN USE
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2013-07-31
Filing date: 2014-07-18
Publication date: 2015-02-05
Also published as: EP3028537A1; ES2768725T3; EP3028537B1

Abstract

The invention relates to a generic device having improved characteristics with regard to a high level of convenience for an operator and/or a substantial flexibility. According to the invention a cooking hob device (10), in particular an induction cooking hob device, has at least one heating arrangement (38, 40) which comprise at least two heating elements (12, 14, 16, 18, 20, 22, 24, 26) disposed adjacent to one another and are provided at least for heating cookware (28) placed on the hob device. The cooking hob device (10) according to the invention has at least one control unit (30) which is provided in order to switch automatically at least between a first sub-mode of operation and a second sub-mode of operation in at least one basic mode of operation, which basic mode of operation can be activated by an operator. In the basic mode of operation the control unit (30) is provided to select the first sub-mode of operation when a small number of heating elements (12, 14, 16, 18, 20, 22, 24, 26) are occupied by cookware (28) placed thereon, in which first sub-mode of operation covered heating elements (12, 14, 16, 18, 20, 22, 24, 26) are operated in dependence of a position of the cookware (28) placed thereon, and to select the second sub-mode of operation, which differs from the first sub-mode of operation, when at least a majority of the heating elements (12, 14, 16, 18, 20, 22, 24, 26) is occupied by cookware (28) placed thereon.

Description

Hob device

The invention relates to a hob device according to claim 1.

The object of the invention is in particular to provide a generic device with improved properties in terms of a high level of comfort for an operator and / or high flexibility. The object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.

The invention relates to a cooktop device, in particular an induction cooktop device, with at least one heating arrangement which has at least two, in particular at least three, advantageously at least four heating elements arranged next to one another and provided at least for heating of the arranged cooking utensils, and with at least one control unit in at least one basic operating mode, which is activatable by an operator, is intended to automatically change at least between a first sub-operating mode and a second sub-operating mode, wherein the control unit is provided in the basic operating mode, with a small number of heating elements occupied by cooking utensils to select the first sub-operation mode in which covered heating elements in

Depending on a position of the set up Gargeschirrs are operated with predefined, mutually differing Heizleistungsdichten, and occupy at least a majority of, advantageously all heating elements by a set up cooking utensils, in particular by a single set up cooking dishes, the second sub-operating mode, which differs from the first sub-operating mode. A "heating arrangement" is to be understood as meaning in particular a unit having at least two, in particular at least three, advantageously at least four heating elements, which is fixed by arranging the heating elements, in particular the hob device comprises at least two heating arrangements, each at least two, in particular at least three, advantageous A "heating element" is to be understood as meaning, in particular, an element which, at least in one operating mode, is intended to supply electrical energy, at least to a large extent, to a cooking utensil, preferably through at least one cooking surface forming basic body through, transfer and / or convert electrical energy into heat, in particular to heat at least one set up cooking utensils, preferably by at least one main body forming a cooking surface therethrough. In particular, the heating element is provided, in at least one operating mode in which the heating element to a supply electronics

connected to transfer a power of at least 100 W, in particular at least 500 W, advantageously at least 1000 W, preferably at least 2000 W.

In particular, the heating element is designed as an induction heating element. An "induction heating element" is to be understood in particular as meaning a wound electrical conductor which is flowed through by high-frequency alternating current in at least one operating mode at least partially ferromagnetic,

Garment Wrlow currents and / or re-magnetization effects cause, which are converted into heat. Preferably, the induction heating element is intended to cause heating of the cooking utensil. Preferably, the induction heating is intended to convert in the operating mode electrical energy into electromagnetic field energy, which is finally converted into heat in a suitable cooking utensils. Advantageously, the hob device comprises at least one supply electronics at least for a supply of the heating elements. In particular, the supply electronics comprises at least one heating frequency unit, in particular at least two, advantageously at least three, preferably at least four heating frequency units, for supplying at least one heating element.

In particular, a heating frequency unit of the supply electronics is provided to supply two, in particular juxtaposed heating elements. A "heating frequency unit" should in particular be understood to mean an electrical unit which generates an oscillating electrical signal, preferably at a frequency of at least 1 kHz, in particular of at least 10 kHz, advantageously of at least 20 kHz, and in particular of not more than 100 kHz for a heating element In particular, the heating frequency unit is provided to provide a maximum electrical power required by the heating element of at least 1000 W, in particular at least 2000 W, advantageously at least 3000 W and preferably at least 3500 W.

Heizfrequenzeinheit comprises in particular at least one inverter, preferably at least two, preferably in series, bidirectional unipolar switches, which are formed in particular by a transistor and a diode connected in parallel, and particularly advantageous at least in each case a parallel to the bidirectional unipolar switches switched damping capacity, which is in particular formed by at least one capacitor comprises. In particular, the

Hob device at least one body at least to a set up of cooking utensils. In particular, the main body forms at least substantially a cooking surface. Under the phrase that two heating elements are arranged "next to each other" should be understood in particular that a shortest the

Connecting heating elements, starting from a first of the heating elements only the first heating element and a second of the heating elements, which is formed separately from the first heating element cuts, in particular while avoiding a further heating element between the two heating elements, wherein a distance of the further heating element to at least one of the adjacent heating elements is at least as large as a distance between the adjacent arranged

Heating elements. A "control unit" is to be understood in particular as meaning an electronic unit which is preferably at least partially integrated in a control and / or regulating unit of a hob and which is preferably provided to control and / or regulate at least the heating elements A cooking unit and in particular in addition to the arithmetic unit, a memory unit with a control and / or regulating program stored therein, which is intended to be executed by the arithmetic unit Advantageously, the cooktop unit has at least one sensor unit, which is formed in particular by the heating elements themselves In particular, the control unit is provided for evaluating measured values of the sensor unit, calculating at least one heating zone, and, in particular, for detecting cooking utensils set up, in particular by measuring at least one inductance and / or at least one capacitance

Define heating elements that form this heating zone. In particular, the control unit is provided to associate a detected cooking utensil with a shape, size and / or position adapted heating zone. In particular, the control unit is provided to enable at least one detection of a raised cooking utensil by the sensor unit by activating at least one of the heating elements, in particular at least a majority of, advantageously all heating elements. Alternatively, further possibilities that would appear appropriate to a person skilled in the art for the detection of erected cooking utensils are conceivable. In particular, the control unit is provided, at least to effect a regular detection of erected cooking utensils, in particular by the sensor unit. Under the phrase that the control unit is intended to effect at least a "regular" detection of erected cooking utensils, should be understood in particular that the control unit is intended to detect a set up Gargeschirr at intervals of less than 30 s, in particular of less than 10 s, advantageously less than 5 s, particularly advantageously less than 1 s, preferably less than 0.1 s

Turn that the control unit is intended to "effect" at least a regular detection of cooking utensils set up, should be understood in particular that the control unit is provided to at least a regular detection of food set up by activating at least one of, in particular at least one Most of, advantageous all heating elements

enable. By the phrase that the basic mode of operation is "activatable" by an operator, it should be understood in particular that the control unit is provided in response to an operator input by means of at least one

Control unit to activate the basic operating mode and / or disable.

In particular, the hob device comprises at least one operating unit at least for an operating input of operating parameters. In particular, one is

Operating characteristic designed as a basic operating mode and / or as a sub-operating mode. For example, the operating unit is provided for selecting and / or changing a heating zone. In addition, the operating unit could be provided for setting a heating power and / or heating power density of a heating zone. It is also conceivable that the operating unit is designed to select and / or change a cooking time and / or a cooking program. Furthermore, it is conceivable that the

Operating unit is provided for a change of an operating mode and / or operating state. Alternatively, further embodiments of the operating unit and / or the operating parameters appearing appropriate to a person skilled in the art are conceivable. An operator input is to be understood as meaning, in particular, an actuation of the operating unit by the user be that the control unit is provided in the basic mode of operation, automatically, in particular, while avoiding an operator input by means of the operating unit, advantageously depending on an occupancy of a number of Heating elements, between a first sub-operating mode and a second

Sub-mode change. In particular, the control unit is in the

Basic operating mode provided depending on a size of a set up Gargeschirrs between the first sub-operating mode and a second

Sub-mode change. In particular, in the first sub-operating mode, the control unit is provided to at least one of, in particular a majority, advantageously allocate a predefined heating power density to each of the heating elements, which differs in particular from a predefined heating power density of further heating elements. In particular, in the memory unit of the control unit for at least one of, in particular a majority of, advantageously each of

Heating elements stored a predefined, individual Heizleistungsdichte. An assignment of a "small number" of the heating elements by cooking utensils installed should be understood to mean, in particular, an occupancy of at least one heating element and less than the majority of the heating elements of the heating arrangement

Garware an occupancy of more than 10%, particularly advantageously more than 20%, advantageously more than 30%, in particular more than 40% of the heating elements of the heating arrangement to be understood. In particular, should occupancy of a small number of heating elements by set up cooking equipment occupancy of less than 90%, advantageously less than 80%, more preferably less than 70%, advantageously less than 60%, in particular less than 50% of

Heating elements of the heating arrangement to be understood. An allocation of "at least a majority" of the heating elements by a set up cooking dishes should in particular occupy more than 50%, in particular more than 60%, advantageously more than 70%, more preferably more than 80%, preferably more than 90% of the heating elements of the heating arrangement are to be understood as occupying at least a majority of the heating elements by means of an installed cooking utensil occupying at least two, in particular at least three, advantageously at least four heating elements of the heating arrangement The term "intended" is to be understood in particular to be specially programmed, designed and / or equipped. The fact that an object is intended for a specific function should in particular mean that the object fulfills and / or executes this specific function in at least one application and / or operating state. In particular, a high level of comfort for an operator and / or high flexibility can be achieved by the configuration according to the invention. In particular, regardless of a size of a set up cooking dishes advantageous

Heat distribution and / or a quick heating process can be achieved. This can advantageously a high satisfaction of the operator and / or an energy-saving

Design can be achieved.

In addition, it is proposed that the control unit be provided to divide the cooking utensil heated heating elements in at least two subgroups and one of the subgroups with another in the second sub-operating mode

Heater density to operate as the other subgroup. In particular, the control unit is provided in the second sub-operating mode, the one

Subgroup forming heating elements, advantageously at the same time, with another

Heater density to operate as the other sub-group forming heating elements. In particular, in the second sub-operation mode, the control unit is provided to operate the first sub-group-forming heating elements at a first heating power density and to operate the second sub-group-forming heating elements at a second heating power density, which is different from the first heating power density

different. By the use of the control unit being intended to "operate" at least one heating element, it should be understood, in particular, that the control unit is intended to control the supply electronics which supply the heating element a single large cooking utensils can be used both for a cooking process as well as for keeping already cooked food warm.

Furthermore, it is proposed that the control unit be provided to independently of one another change heating power densities of the heating elements mounted on the raised cooking utensil in the second sub-operating mode as a function of an operating input by means of at least one operating unit. In particular, the control unit is provided in the second sub-operating mode in dependence on a

Operator input by means of the operating unit to change the first heating power density of the first sub-group forming heating elements independently of the second heating power density of the second sub-group forming heating elements. Alternatively or additionally, it is conceivable that the control unit is provided in the second Sub-operating mode in response to an operator input by means of the operating unit, at least a first heating element of a subgroup with another

Heizleistungsdichte operated as a second heating element of the same subgroup. As a result, in particular a high level of comfort for an operator and / or a high degree of flexibility can be achieved.

It is also proposed that the control unit be provided in the

Basic mode of operation, a heating element, which is arranged in an area facing an operator, to assign a higher Heizleistungsdichte than one

Heating element which is arranged in an area facing away from an operator.

Alternatively, it is conceivable that the control unit is provided, at least in one operating mode, to associate a heating element with a heating element arranged in an area facing an operator, as a heating element arranged in an area facing away from the operator. In particular, the control unit is provided, at least in the basic operating mode a

Heating element, which is arranged in the area facing an operator to assign a highest heating power density of all heating elements, in particular in a comparison with other heating elements, at least one cooking surface area.

In particular, the control unit is provided, at least in the

Basic operating mode a heating element, which is arranged in the area facing away from an operator, a lowest heating power density of all heating elements, in particular in a comparison with other heating elements, at least one

Associate cooking surface area. In particular, the control unit is provided, at least in the basic operating mode heating elements depending on a distance to the operator-facing area a different

Allocate heating power density. This can be achieved in particular a high level of comfort for an operator. In particular, an operator can prepare food in the region facing an operator. In addition, an operator can place ready-cooked food for keeping warm in the area facing away from the operator, in order to be able to continue preparing cooking food comfortably, particularly in the area facing an operator.

In addition, it is proposed that the control unit is provided, depending on an operating input by means of at least one operating unit between the Basic operating mode and at least one other basic operating mode in which the heating elements are operated independently, to change. In addition, it is conceivable that the control unit is provided in the basic operating mode to change between the first sub-operating mode and the second sub-operating mode depending on an operating input by means of at least one operating unit. In particular, heating power densities in the further basic operating mode are freely selectable, in particular while avoiding influencing others

Heating power densities of other heating elements. In particular, in the further

Basic operating mode, a first heating power density of a first heating element freely selectable by an operator input by means of the operating unit. In particular, in the further basic operating mode, a second heating power density of a second heating element can be selected freely by an operating input by means of the operating unit, in particular below

Avoiding influencing the first heating power density of the first heating element. As a result, in particular a flexible embodiment can be achieved. In addition, advantageously, an operator can conveniently switch between different operating modes as desired.

It is also proposed that at least a part of the heating elements forms a variable cooking surface area. A "variable cooktop area" is to be understood in particular as a cooktop area intended to form at least one cooking zone adapted to at least one set of cooking utensils. In particular, the variable cooktop area is formed by at least two, in particular by at least three, advantageously by at least four heating elements .In particular, the heating elements forming the variable cooktop area are arranged in a single row. or a column and / or a strip. In particular, the heating elements along a row connecting the heating elements longitudinal direction, which is in particular formed as a straight, arranged against each other, in particular strung. In particular, the series longitudinal direction combines focal points of

Heating elements. It is also conceivable that the heating elements are arranged offset, with focal points of the heating elements to a straight line which is aligned at least substantially parallel to the row longitudinal direction and which at least the heating elements substantially centrally interconnected, have a distance which is less than 50%, in particular less than 40%, advantageously less than 30% of an amount of at least one extension, in particular a longitudinal extent and / or a transverse extent, at least one of the heating elements forming the row , A "single" row of at least two heating elements should in particular be understood to mean a row in which the heating elements are arranged in, in particular exactly, adjacent to a row longitudinal direction, the control unit being intended to consist of the in

Row longitudinally adjacent arranged heating elements to form at least one adapted to at least one set cooking dishes cooking zone. In particular, at least one further heating element, which is formed separately from the heating elements forming the row and is part of a further row formed separately from the row, is arranged at a distance from each of the heating elements forming the row.

In particular, the further heating element has a spacing, which is greater than 15%, in particular greater than 30%, advantageously greater than 40%, for each of the row-forming heating elements with respect to a row transverse direction which is aligned at least substantially perpendicular to the row longitudinal direction. preferably greater than 50%, particularly preferably greater than 75%, of an amount of at least one extension, in particular a longitudinal extent and / or a transverse extent, of at least one of the heating elements forming the row. By the notion that a straight line and / or plane is aligned "at least substantially perpendicularly" to a further straight line and / or plane formed separately from a straight line and / or plane, it shall be understood in particular that the straight line and / or Plane with the further straight line and / or plane in a projection on at least one

Projection level, in which at least one of the lines and / or one of the planes is arranged, includes a Wnkel which preferably by less than 15 °, advantageously by less than 10 ° and in particular by less than 5 ° from a 90 ° Wnkel deviates. Alternatively or additionally, it is conceivable that at least a part of the heating elements form a classic cooktop. It is also conceivable that a part, in particular substantially 50%, of a cooking surface as a classic hob and a further part, in particular substantially 50%, of the cooking surface is designed as a variable cooking surface area. As a result, in particular a high degree of flexibility can be achieved.

Further advantages emerge from the following description of the drawing. In the

Drawing embodiments of the invention are shown. The drawing, the Description and claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

1 shows a hob according to the invention with an inventive

Hob device in a schematic plan view.

1 shows a hob 46 according to the invention, which is designed as an induction hob, with a hob device 10 according to the invention, which is designed as an induction hob device. The hob device 10 has a main body 48 for setting up cooking utensils 28. The main body 48 forms a cooking surface. The hob apparatus 10 includes two heater assemblies 38, 40. Each of the heater assemblies 38, 40 includes four heating elements 12, 14, 16, 18, 20, 22, 24, 26 for heating up cooking utensils 28. A first heating assembly 38 includes a first heating element 12, a second heating element 14, a third heating element 16 and a fourth heating element 18. A second heating arrangement 40 comprises a fifth

Heating element 20, a sixth heating element 22, a seventh heating element 24 and an eighth heating element 26. The heating elements 12, 14, 16, 18, 20, 22, 24, 26, as

Induction heating elements are formed, are below the main body 48th

arranged. The heating elements 12, 14, 16, 18, 20, 22, 24, 26 are respectively

provided, on the base 48 above the heating elements 12, 14, 16, 18, 20, 22, 24, 26 arranged cooking utensils 28 to heat. The heating elements 12, 14, 16, 18, 20, 22, 24, 26 are formed as elongated heating elements 12, 14, 16, 18, 20, 22, 24, 26. Each heating element 12, 14, 16, 18, 20, 22, 24, 26 has a longitudinal extent 50 which is greater than a transverse extent 52 of the heating element 12, 14, 16, 18, 20, 22, 24, 26. The heating elements 12, 14, 16, 18, 20, 22, 24, 26 of the first heating arrangement 38 are arranged side by side. The first heating element 12 is arranged in an area of the main body 48 facing an operator in the installed state.

Starting from the first heating element 12, the second heating element 14 follows in a row longitudinal direction 54, then the third heating element 16 and then the fourth heating element 18. The longitudinal direction 54 is substantially perpendicular to the

Longitudinal extent 50 of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 aligned. The Row longitudinal direction 54 extends, starting from the area of the base body 48 facing an operator in the installed state in the direction of a region of the base body 48 facing away from the operator in the installed state. The heating elements 20, 22, 24, 26 of the second heating arrangement 40 are arranged next to one another. The fifth heating element 20 is in the installed state a

Operator facing portion of the body 48 is arranged. Starting from the fifth heating element 20, the sixth heating element 22 follows in the longitudinal direction 54, then the seventh heating element 24 and then the eighth heating element 26.

The hob device 10 comprises two variable cooking surface areas 42, 44. Each four of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 form one of the variable

Cooking surface areas 42, 44 off. The two variable cooktop areas 42, 44 are arranged side by side. In this case, the two variable cooktop areas 42, 44 are arranged next to one another with respect to a direction aligned substantially parallel to the longitudinal extent 50 of the heating elements 12, 14, 16, 18, 20, 22, 24, 26. A first of the variable cooktop areas 42 is arranged on a first side of the main body 48. A second of the variable cooking surface areas 44 is arranged on a second side of the main body 48, which is opposite to the first side. In each case four heating elements 12, 14, 16, 18, 20, 22, 24, 26, which form one of the variable cooktop areas 42, 44, are arranged in a single row. The heating elements 12, 14, 16, 18, 20, 22, 24, 26 forming the single row are arranged adjacent in the longitudinal direction 54 of the series. The individual elements forming the row heating elements 12, 14, 16, 18, 20, 22, 24, 26 have in the longitudinal direction 54 at a distance which is substantially smaller than the substantially parallel to the longitudinal direction 54 aligned transverse extension 52 of the heating elements 12, 14th , 16, 18, 20, 22, 24, 26. The first variable cooktop area 42 is formed by the first heating element 12, the second heating element 14, the third heating element 16 and the fourth heating element 18. The second variable cooking surface area 44 is composed of the fifth heating element 20, the sixth heating element 22, the seventh heating element 24 and the eighth

Heating element 26 is formed. The hob device 10 comprises a supply electronics for supplying the heating elements 12, 14, 16, 18, 20, 22, 24, 26. Die

Supply electronics include four heating frequency units, each one to one

Supply of two juxtaposed heating elements 12, 14, 16, 18, 20, 22, 24, 26 are provided. A first heating frequency unit is provided for supplying the first heating element 12 and the second heating element 14. A second heating frequency unit is provided for supplying the third heating element 16 and the fourth heating element 18. A third heating frequency unit is provided to supply the fifth heating element 20 and the sixth heating element 22. A fourth

Heating frequency unit is provided to supply the seventh heating element 24 and the eighth heating element 26.

The cooktop device 10 has an operating unit 36 for inputting operating parameters in the area assigned to an operator in the installed state. An operating parameter is as a setting of a heating power and / or

Heat density of a heating zone formed. In addition, it is conceivable that an operating parameter is designed as a selection and / or modification of a heating zone. It is also conceivable for an operating parameter to be designed as a selection and / or variation of a cooking time and / or a cooking program. Alternatively, further training of the operating parameters appearing appropriate to a person skilled in the art is conceivable. The hob device 10 has a control unit 30 for operating the heating elements 12, 14, 16, 18, 20, 22, 24, 26. The control unit 30 is to

provided, depending on the input by means of the control unit 36

Operating parameters Execute actions and / or change settings. The cooktop device 10 comprises a sensor unit for a detection of the cooking utensil 28 set up. The sensor unit is formed essentially in one piece with the heating elements 12, 14, 16, 18, 20, 22, 24, 26. The control unit 30 is connected to the sensor unit. The control unit 30 and the sensor unit are electrically connected.

In a method of operating the cooktop apparatus 10, in a basic operating mode, the control unit 30 selects between a first sub-operating mode and a second sub-operating mode depending on a number of occupied heating elements 12, 14, 16, 18, 20, 22, 24, 26 by the cooking utensil 28 installed out. When the number of occupied heating elements 12, 14, 16, 18, 20, 22, 24, 26 is changed by the cooking utensil 28 installed, the control unit 30 automatically switches between the first sub-operating mode and the second sub-operating mode in the basic operating mode. When a small number of heating elements 12, 14, 16, 18, 20, 22, 24, 26 are occupied by cooking utensils 28 placed thereon, control unit 30 selects them Basic operating mode the first sub-operating mode. For example, the

Control unit 30 in the basic operation mode automatically the first

Sub-operation mode in the case of occupancy of three of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 of a single one of the heating arrangements 38, 40. In the case of occupancy of one or two of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 of a single one of the heating assemblies 38, 40, the control unit 30 automatically selects the first sub-operating mode in the basic operating mode.

In the first sub-mode of operation, covered heating elements 12, 14, 16, 18, 20, 22, 24, 26 are operated with predefined differing heating power densities depending on a position of the erected cooking utensil 28. In the first sub-operating mode, the control unit 30 assigns a predefined heating power density to each of the heating elements 12, 14, 16, 18, 20, 22, 24, 26, which differs from

Heat power densities further of the heating elements 12, 14, 16, 18, 20, 22, 24, 26th

different. For each of the heating elements 12, 14, 16, 18, 20, 22, 24, 26, a predefined value of a heating power density is stored in a memory unit of the control unit 30. The control unit 30 divides the predefined heating power densities stored in the storage unit as a function of a position of the heating elements 12, 14, 16, 18, 20, 22, 24, 26. The control unit 30 assigns a heating element 12, 14, 16 in the basic operating mode. 18, 20, 22, 24, 26 in the one operator

facing a higher Heizleistungsdichte than a heating element 12, 14, 16, 18, 20, 22, 24, 26, which is arranged in the area facing away from the operator. For example, the control unit 30 arranges in the

Basic mode of operation of the first heating element 12, which is arranged in the installed state an operator facing area, a higher Heizleistungsdichte than the fourth heating element 18, which is arranged in the installed state in an operator facing away area. The control unit 30 arranges in the

Basic mode of operation, the first heating element 12, a first Heizleistungsdichte, which is greater than a second Heizleistungsdichte associated with the second heating element 14. The second heating power density associated with the second heating element 14 is greater than a third heating power density associated with the third heating element 16. The third heating power density associated with the third heating element 16 is greater than a fourth heating power density associated with the fourth heating element 18. Assuming all of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 formed by a single cooking set 28, the control unit 30 selects the second sub-operating mode, which differs from the first sub-operating mode in the basic operating mode different. Alternatively, it is conceivable that the control unit selects the second sub-operating mode in the basic operating mode with an occupancy of two or three heating elements of a single of the heating arrangements by a single set up cooking utensils. In the basic mode of operation, the control unit 30 operates by occupying all of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 of a single one of the heating assemblies 38, 40 through the single installed one

Garware 28 the heating elements 12, 14, 16, 18, 20, 22, 24, 26 associated with the set cooking utensil 28 in the second sub-operating mode, which differs from the first sub-operating mode.

In the second sub-operating mode, the control unit 30 divides the heating elements 12, 14, 16, 18, 20, 22, 24, 26 heating the cooking utensil 28 into two sub-groups 32, 34. The control unit 30 divides the heating elements 12, 14 heated by the cooking utensil 28, 16, 18, 20, 22, 24, 26 according to an assignment of the heating elements 12, 14, 16, 18, 20, 22, 24, 26 to the heating frequency units of the supply electronics in the two sub-groups 32, 34. In the second sub-operating mode assigns the Control unit 30, the first

Heating element 12 and the second heating element 14 of a first subgroup 32 to. In addition, in the second sub-mode of operation, the control unit 30 allocates the third heating element 16 and the fourth heating element 18 to a second sub-group 34. In the second

In sub-mode, the control unit 30 operates the first sub-group 32 with a different heating power density than the second sub-group 34. The control unit 30 operates in the second sub-mode of operation associated with the first sub-group 32

Heating elements 12, 14 with a different heating power density than the second

Sub-group 34 associated heating elements 16, 18. The control unit 30 assigns in the second sub-operating mode of the arranged in the installed state to an operator facing area first subgroup 32 a higher

Heater density to than the arranged in the installed state of an operator remote area second subgroup 34th

The control unit 30 outputs the heating power densities of the subgroups 32, 34 by means of the operating unit 36 in the second sub-operating mode. This gives the control unit 30 in the second sub-operating mode, the heating power densities of the subgroups 32, 34 at the same time by means of the control unit 36 from. The heating power densities of the subgroups 32, 34 can be changed independently of one another in the second sub-operating mode by an operating input by means of the operating unit 36. The control unit 30 changes in the second sub-operating mode in dependence on an operating input by means of the operating unit 36 heating power densities of the upright cookware 28 heated heating elements 12, 14, 16, 18 independently. In the second

Sub-mode, a heating power density of each of the sub-groups 32, 34 by an operator input by means of the control unit 36 can be freely selected. Here, the control unit 30 changes a heating power density of the first subgroup 32 by one

Operating input by means of the operating unit 36 regardless of a heating power density of the second subgroup 34. For example, operates the control unit 30 in the second sub-operating mode, the first subgroup 32 in response to an operator input by means of the control unit 36 with a higher, a lower or the same

Heat density as the second subgroup 34th

In the first sub-operating mode, when changing one of the stored predefined heating power densities, the control unit 30 checks whether the structure of the predefined heating power densities has been changed by the change of one of the stored predefined heating power densities. In the event of a change in the structure of the predefined heating power densities, the control unit 30 changes in the first

Sub-operating mode depending on a change of a predefined one

Heat density of a heating element 12, 14, 16, 18, 20, 22, 24, 26, a further heating element 12, 14, 16, 18, 20, 22, 24, 26, associated predefined Heizleistungsdichte. When changing one of the stored predefined heating power densities, the control unit 30 maintains the classification of the heating power densities in the operating mode.

The basic mode of operation, in which the control unit 30 automatically switches between the first sub-mode and the second sub-mode, is activatable by an operator. The basic operating mode can be activated by an operator input by means of the operating unit 36 by the operator. In addition to this is by a

Operating input by means of the operating unit 36, a change between the

Basic operating mode and another basic operating mode possible. The control unit 30 changes as a function of an operating input by means of the operating unit 36 between the basic operating mode and the further basic operating mode in which the heating elements 12, 14, 16, 18, 20, 22, 24, 26 are operated independently of each other. In the other basic operation mode, a heating power density of each of the

Heating elements 12, 14, 16, 18, 20, 22, 24, 26 freely selectable by an operator input by means of the control unit 36.

reference numeral

10 hob device

12 heating element

14 heating element

16 heating element

18 heating element

20 heating element

22 heating element

24 heating element

26 heating element

28 cooking utensils

30 control unit

32 subgroup

34 subgroup

36 operating unit

38 heating arrangement

40 heating arrangement

42 Variable cooking surface area

44 Variable cooking surface area

46 hob

48 basic body

50 longitudinal extension

52 transverse extension

54 row longitudinal direction

Claims

claims

Hob device, in particular induction hob device, with at least one heating arrangement (38, 40), which has at least two heating elements (12, 14, 16, 18, 20, 22, 24, 26) arranged next to one another and at least for heating of installed cooking utensils (38). 28) are provided, and with at least one control unit (30), which is provided in at least one basic operating mode, which can be activated by an operator, automatically, at least between a first sub-operation mode and a second

Sub-operating mode, wherein the control unit (30) in the

Basic operating mode is provided, when occupying a small number of heating elements (12, 14, 16, 18, 20, 22, 24, 26) by means of cooking utensils (28) set to select the first sub-operating mode, in which covered heating elements (12, 14 , 16, 18, 20, 22, 24, 26) depending on a position of the erected cooking utensils (28) are operated with predefined, mutually differing Heizleistungsdichten, and in a

Assigning at least a majority of the heating elements (12, 14, 16, 18, 20, 22, 24, 26) by a set cooking utensils (28) to select the second sub-operating mode, which differs from the first sub-operating mode.

Hob device according to claim 1, characterized in that the control unit (30) is provided in the basic operating mode, with an occupancy of all heating elements (12, 14, 16, 18, 20, 22, 24, 26) by a set up cooking utensils (28) the raised cooking utensils (28) associated heating elements (12, 14, 16, 18, 20, 22, 24, 26) in the second

Sub-operating mode, which differs from the first sub-operating mode

different, operate.

3. Hob device according to one of the preceding claims, characterized in that the control unit (30) is provided, in the second sub-operating mode, the cooking utensil (28) heated heating elements (12, 14, 16, 18, 20, 22, 24, 26) into at least two subgroups (32, 34) and to operate one of the subgroups (32) with a different heating power density than the other subgroup (34).

4. Hob device according to one of the preceding claims, characterized

characterized in that the control unit (30) is provided in the second sub-operating mode as a function of an operating input by means of at least one control unit (36) heating power densities of the heating elements (12, 14, 16, 18, 20, 22, 22) heating the raised cooking utensil (28) , 24, 26) to change independently.

5. Hob device according to one of the preceding claims, characterized

characterized in that the control unit (30) is provided, in the basic mode of operation, to a heating element (12, 14, 16, 18, 20, 22, 24, 26) arranged in an area facing an operator

Assume heating power density as a heating element (12, 14, 16, 18, 20, 22, 24, 26), which is arranged in an area facing away from the operator.

6. Hob device according to one of the preceding claims, characterized

characterized in that the control unit (30) is provided in

Dependence on an operator input by means of at least one operating unit (36) between the basic operating mode and at least one further

Basic mode of operation, in which the heating elements (12, 14, 16, 18, 20, 22, 24, 26) are operated independently, to change.

7. Hob device according to one of the preceding claims, characterized

in that the heating arrangement (38, 40) has at least three heating elements (12, 14, 16, 18, 20, 22, 24, 26).

8. Hob device according to one of the preceding claims, characterized in that at least a part of the heating elements (12, 14, 16, 18, 20, 22, 24, 26) forms a variable cooking surface area (42, 44).

9. Hob device according to claim 8, characterized in that the variable cooktop area (42, 44) forming heating elements (12, 14, 16, 18, 20, 22, 24, 26) are arranged in a single row.

10. hob with at least one hob device (10) according to one of

Claims 1 to 9.

11. A method for operating a hob device (10) according to any one of claims 1 to 9.