EP2840867B1 - Hotplate device - Google Patents

Description

The invention relates to a hob device according to claim 1. The documents WO 2009/053279 A1 and WO 2008/122495 A1 disclose induction cooker devices of the prior art. 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. It is a hob device, in particular an induction hob device, with at least two, in particular at least three, advantageously at least four, more preferably at least six, preferably at least eight heating elements at least to a heated cooking utensils and at least one control unit, depending on at least one operating parameter is provided to independently operate the heating elements in at least one first operating mode and in at least a second operating mode, which has a at least comparable to the first operating mode Gargeschirr occupancy to operate with mutually dependent Heizleistungsdichten proposed. A "heating element" is to be understood in particular to mean an element which is intended, at least in one operating mode, to transfer electrical energy to cooking utensils, preferably through at least one main body forming a cooking surface, and / or electrical energy into heat to convert in particular to heat at least one set up cooking utensils, preferably by at least one main body forming a cooking surface. In particular, the heating element is provided to transmit in at least one operating mode in which the heating element is connected to a supply electronics, 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 a wound electrical conductor which is traversed by high-frequency alternating current in at least one operating mode. In particular, the induction heating element is intended to convert electrical energy into a magnetic alternating field, which is intended to be in a metallic, preferably at least partially ferromagnetic, Gargeschirr, eddy currents and / or Ummagnetisierungseffekte 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 comprise at least one, in particular at least two, advantageously at least three, preferably at least four inverters for supplying at least one heating element. In particular, an inverter of the supply electronics is provided to supply two, in particular juxtaposed heating elements. In particular, the hob device has at least one main body at least for setting up cooking utensils. In particular, the main body forms at least substantially a cooking surface. 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. The control unit preferably comprises a computing unit and, in particular in addition to the computing unit, a memory unit with a control and / or regulating program stored therein, which is intended to be executed by the computing unit. Advantageously, the hob device has at least one sensor unit, which is formed in particular by the heating elements themselves, which is intended to detect cooking utensils arranged, in particular by measuring at least one inductance and / or at least one capacitance. In particular, the sensor unit is provided to recognize at least the shape, size and / or material of the cooking utensils. In particular, the sensor unit is provided to detect cooking utensils set up on the basis of shape, size and / or material and to distinguish them from each other. In particular, the control unit is provided to evaluate measured values of the sensor unit, to calculate at least one heating zone and to determine 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. Preferably, the control unit is provided in at least one operating mode, in particular at least in the first operating mode and / or in the second operating mode, advantageously in each operating mode, set cooking dishes automatically, in particular automatically, advantageously while avoiding an operator input by means of the operating unit to assign at least one heating zone. Advantageously, the control unit is provided, after assignment of the heating zone to prompt an operator by means of the operating unit to an operating input, in particular to an input of an operating parameter, advantageously a heating power. In particular, the control unit is provided to follow at least substantially simultaneously setting up at least two separately formed Gargeschirren at least two separately arranged positions a predetermined scheme. For example, the predetermined scheme includes a treatment of the heating zones in response to a position, wherein the control unit processes the heating zones, for example, clockwise or counterclockwise. 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 to effect at least a regular detection of food set up, 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 10 s, advantageously less than 5 s, particularly advantageously less than 1 s, preferably less than 0.1 s. By the phrase that the control unit is intended to "effect" at least one regular detection of set up cooking utensils, it should be understood in particular that the control unit is intended to provide at least one regular detection of set up cooking utensils by activating at least one of, in particular at least a majority of, advantageously allow all heating elements. In particular, the control unit is provided to operate the heating elements in the first operating mode or in the second operating mode as a function of at least one operating parameter. In particular, the operating parameter is as garment occupancy and / or as an operating input by means of at least one operating unit educated. Alternatively, further operating parameters which appear reasonable to a person skilled in the art are conceivable. In particular, the Gargeschirr occupancy is designed as a number, size, shape, material and / or preferably position of cooking dishes set up. In particular, the Gargeschirr occupancy is as a number of inverters, which are required for operating heating elements, in particular of erected cooking utensils covered heating elements, formed. In particular, the hob device comprises at least one operating unit at least for an operating input of operating parameters. An "operator input" should in particular be understood to mean an actuation of the operating unit by an operator. By the phrase that the control unit is 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. By the use of the control unit being intended to operate the heating elements "independently of one another" in at least one first operating mode, it should be understood in particular that the control unit is provided to free the heating elements, in particular by operating input by means of at least one operating unit Assign selectable heating power densities. By the use of the control unit being intended to "allocate" a heating power density to a heating element, it should be understood in particular that the control unit is intended to operate the heating element with the heating power density associated with the heating element upon activation of the heating element. Under the phrase that the control unit is intended to operate the heating elements in at least one second operating mode with "mutually dependent" Heizleistungsdichten, should be understood in particular that the control unit is provided, in the second operating mode, the heating elements with at least substantially the same Frequency and / or operate with at least substantially the same Heizleistungsdichte. In particular, the control unit is intended to control the supply electronics and to effect a supply of the heating elements with at least substantially the same frequency by the supply electronics. By "at least substantially the same" frequencies and / or Heizleistungsdichten should be understood in particular at least two frequencies and / or Heizleistungsdichten whose amounts are less than 20%, in particular less than 10%, advantageously less than 5%, preferably less than 3%. Under the phrase that the second mode of operation is one of the first mode of operation "at least In particular, it should be understood that the number, type, position and / or size of all set up cooking utensils in the first operating mode and in the second operating mode is at least substantially the same, in particular completely identical. The type, position and / or size of all the cooking utensils set up in the first operating mode and in the second operating mode are caused by the same cooking utensils and / or cooking utensils.The cooking utensil occupancy differs in particular from a percentage occupancy of the heating elements by installed cooking utensils In particular, it should be understood that specially programmed, designed and / or equipped are understood to mean that an object is intended for a specific function, in particular that the object fulfills this specific function in at least one application and / or operating state and / or performs.

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, at least two operating modes are available to an operator, whereby a high degree of flexibility and / or high comfort for the operator can be achieved. In addition, advantageously a quick cooking process can be achieved. In particular, a selection of an operating mode and / or a heating zone for installed cooking utensils can be removed from an operator, which allows the operator more free time.

In addition, it is proposed that the control unit is provided, depending on a garment occupancy automatically, in particular automatically, advantageously avoiding an operator input by means of the operating unit, an operating mode of at least one group of operating modes, at least the first operating mode and the second operating mode includes selecting. In particular, the group of operating modes, in particular in addition to the first operating mode and the second operating mode, comprises at least one third operating mode. In particular, the control unit is provided, at least in the third operating mode, to assign a heating element which is arranged in an installed state to an operator facing area, a higher heating power density than a heating element, which is arranged in an installed state facing away from an operator area. In addition, it is conceivable that the group of modes of operation further, a mode of operation that appears appropriate to a person skilled in the art. As a result, in particular a high level of comfort for an operator and / or a high degree of flexibility can be achieved. In addition, advantageously a quick cooking process and / or a time-saving design can be achieved.

Furthermore, it is proposed that the control unit is provided to output at least one operating mode, which the control unit has automatically selected, by means of at least one operating unit, in particular to enable an operator to correct, advantageously change, the operating mode automatically selected by the control unit. In particular, the operating unit comprises at least one output unit for outputting at least one piece of information to an operator. In particular, the control unit is provided by means of the operating unit at least to an optical output of the operating mode which the control unit has automatically selected. Alternatively or additionally, it is conceivable that the control unit is provided for an acoustic output of the operating mode, which the control unit has automatically selected, by means of the operating unit. As a result, in particular, an operator can be informed in a pleasant way. In addition, advantageously a high level of operating comfort can be achieved.

It is also proposed that the control unit is provided to switch between the first operating mode and the second operating mode as a function of an operating input by means of at least one operating unit. The control unit is advantageously provided to replace an operating mode automatically selected by the control unit from the group of operating modes by a further operating mode from the group of operating modes as a function of an operating input. In addition, the control unit is provided to change an automatically selected by the control unit operating mode of the group of operating modes depending on an operating input by means of the operating unit. For example, the control unit could be provided to change at least one operating parameter of the automatically selected operating mode, for example a heating power density and / or a selection of heating zones. As a result, in particular a flexible embodiment and / or a design adapted to the user's wishes can be achieved. Furthermore, in particular, a possibility for a correction of a wrongly made selection of an operating mode from the group of operating modes can be provided.

Furthermore, it is proposed that at least a part of the heating elements form a variable cooking surface area. A "variable cooktop area" is to be understood, in particular, as a cooktop area, which is intended to form at least one cooking zone adapted to at least one set of cooking utensils. In particular, the variable cooktop area differs from a cooktop in which heating zones, in particular by markings on the cooktop, are fixed. In particular, the variable cooktop area of at least two, in particular of at least three, is advantageously formed by at least four heating elements. In particular, the heating elements forming the variable cooking surface area are arranged in a single row. A "row" is to be understood in particular as meaning a row and / 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 connects focal points of the heating elements. It is also conceivable that the heating elements are arranged offset, wherein focal points of the heating elements to a straight line which is aligned at least substantially parallel to the row longitudinal direction and which connects the heating elements at least substantially centrally, have a distance which is smaller 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 be understood to mean, in particular, a row in which the heating elements are arranged adjacent to a row longitudinal direction, in particular precisely, wherein the control unit is provided to at least one of at least one of the heating elements adjacently arranged in the row longitudinal direction to form a cooking appliance adjusted 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, 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 by a straight line and / or plane, it shall be understood in particular that the straight line and / or Level with the further straight line and / or plane in a projection on at least one projection plane in which at least one of the lines and / or one of the planes is arranged, an angle includes, preferably by less than 15 °, advantageously less than 10 ° and differs in particular by less than 5 ° from an angle of 90 °. 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. In addition, it is proposed that at least a part of the heating elements form a classic cooktop. In particular, at least two, in particular at least three, advantageously at least four, of the heating elements form a classic cooktop. For example, it is 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. A "classic hob" is to be understood in particular a cooking surface, wherein heating zones, which are each formed by at least one heating element, are fixed. For example, the fixed heating zones could be indicated to an operator by markings on the cooking surface. In particular, the heating zones are arranged at a distance from each other on the cooking surface. In particular, the heating zones have a distance from each other which is greater than 15%, in particular greater than 30%, advantageously greater than 40%, preferably greater than 50%, particularly preferably greater than 75%, of an amount of at least one extension of at least one heating zone. As a result, in particular an inexpensive embodiment can be achieved. Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination.

Fig. 1

ein erfindungsgemäßes Kochfeld mit einer erfindungsgemäßen Kochfeldvorrichtung in einer schematischen Draufsicht, wobei eine erste Gargeschirr-Belegung dargestellt ist,

Fig. 2

das erfindungsgemäße Kochfeld mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 1 in einer schematischen Draufsicht, wobei eine zweite Gargeschirr-Belegung dargestellt ist,

Fig. 3

das erfindungsgemäße Kochfeld mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 1 in einer schematischen Draufsicht, wobei eine dritte Gargeschirr-Belegung dargestellt ist,

Fig. 4

das erfindungsgemäße Kochfeld mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 1 in einer schematischen Draufsicht, wobei eine vierte Gargeschirr-Belegung dargestellt ist,

Fig. 5

das erfindungsgemäße Kochfeld mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 1 in einer schematischen Draufsicht, wobei eine fünfte Gargeschirr-Belegung dargestellt ist,

Fig. 6

das erfindungsgemäße Kochfeld mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 1 in einer schematischen Draufsicht, wobei eine sechste Gargeschirr-Belegung dargestellt ist,

Fig. 7

ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Kochfelds mit einer erfindungsgemäßen Kochfeldvorrichtung in einer schematischen Draufsicht, wobei eine erste Gargeschirr-Belegung dargestellt ist,

Fig. 8

das weitere Ausführungsbeispiel des erfindungsgemäßen Kochfelds mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 7 in einer schematischen Draufsicht, wobei eine zweite Gargeschirr-Belegung dargestellt ist und

Fig. 9

das weitere Ausführungsbeispiel des erfindungsgemäßen Kochfelds mit der erfindungsgemäßen Kochfeldvorrichtung aus Fig. 7 in einer schematischen Draufsicht, wobei eine dritte Gargeschirr-Belegung dargestellt ist.

Show it:

Fig. 1

an inventive cooktop with a cooktop device according to the invention in a schematic plan view, wherein a first Gargeschirr occupancy is shown,

Fig. 2

the hob according to the invention with the hob according to the invention from Fig. 1 in a schematic plan view, wherein a second Gargeschirr occupancy is shown,

Fig. 3

the hob according to the invention with the hob according to the invention from Fig. 1 in a schematic plan view, wherein a third Gargeschirr occupancy is shown,

Fig. 4

the hob according to the invention with the hob according to the invention from Fig. 1 in a schematic plan view, wherein a fourth Gargeschirr occupancy is shown,

Fig. 5

the hob according to the invention with the hob according to the invention from Fig. 1 in a schematic plan view, wherein a fifth Gargeschirr occupancy is shown,

Fig. 6

the hob according to the invention with the hob according to the invention from Fig. 1 in a schematic plan view, wherein a sixth Gargeschirr occupancy is shown,

Fig. 7

a further embodiment of a hob according to the invention with a hob according to the invention in a schematic plan view, wherein a first Gargeschirr occupancy is shown,

Fig. 8

the further embodiment of the hob according to the invention with the hob according to the invention from Fig. 7 in a schematic plan view, wherein a second Gargeschirr occupancy is shown and

Fig. 9

the further embodiment of the hob according to the invention with the hob according to the invention from Fig. 7 in a schematic plan view, wherein a third Gargeschirr occupancy is shown.

Fig. 1 shows a cooktop 24a according to the invention, which is designed as an induction cooktop, with a cooktop device 10a according to the invention, which is designed as an induction cooktop device. The hob device 10a has a main body 26a for setting up cooking utensils 14a. The main body 26a forms a cooking surface. Hob device 10a includes eight heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a for heating up cooking utensils 14a. The heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a, which are designed as induction heating elements, are arranged below the main body 26a. The heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a are each provided to heat cooking utensils 14a placed on the base body 26a above the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. The heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a are formed as elongate heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. Each heating element 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a has a longitudinal extent 28a which is greater than a transverse extent 30a of the heating element 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a.

Hob device 10a includes two variable cooking surface areas 20a, 48a. Four of the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a each form one of the variable cooktop areas 20a, 48a. The two variable cooktop areas 20a, 48a are arranged side by side. In this case, the two variable cooktop areas 20a, 48a are arranged side by side with respect to a direction substantially parallel to the longitudinal extent 28a of the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. A first of the variable cooking surface areas 20a is disposed on a first side of the main body 26a. A second of the variable cooking surface areas 48a is disposed on a second side of the main body 26a, which is opposite to the first side. Four heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a each, which form one of the variable cooktop areas 20a, 48a, are arranged in a single row. The heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a forming the single row are arranged adjacent to one another in a row longitudinal direction 32a. The row longitudinal direction 32a is oriented substantially perpendicular to the longitudinal extent 28a of the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. The row longitudinal direction 32a extends, starting from a in an installed state an operator facing portion of the main body 26a in the direction of an in installed state an operator facing away from the area of the body 26a. The heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a forming the individual row have a spacing which is substantially smaller than the transverse extension 30a of the heating elements 12a, which is substantially parallel to the longitudinal direction 32a of the row. 34a, 36a, 38a, 40a, 42a, 44a, 46a.

The first variable cooking surface area 20a is formed by a first heating element 12a, a second heating element 34a, a third heating element 36a and a fourth heating element 38a. The first heating element 12a is arranged in the region of the main body 26a facing an operator in the installed state. Starting from the first heating element 12a, the second heating element 34a follows in the row longitudinal direction 32a, then the third heating element 36a and then the fourth heating element 38a. The second variable cooking surface area 48a is formed by a fifth heating element 40a, a sixth heating element 42a, a seventh heating element 44a and an eighth heating element 46a. The fifth heating element 40a is arranged in the region of the base body 26a facing an operator in the installed state. Starting from the fifth heating element 40a, the sixth heating element 42a follows in the row longitudinal direction 32a, then the seventh heating element 44a and then the eighth heating element 46a.

The hob device 10a comprises supply electronics for supplying the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. The supply electronics comprises four inverters, which are each provided for supplying two heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a arranged next to one another. A first inverter is provided to supply the first heater 12a and the second heater 34a. A second inverter is provided to supply the third heating element 36a and the fourth heating element 38a. A third inverter is provided to supply the fifth heating element 40a and the sixth heating element 42a. A fourth inverter is provided to supply the seventh heating element 44a and the eighth heating element 46a.

The cooktop apparatus 10a has an operating unit 18a for inputting operating parameters in an area assigned to an operator in the installed state. For example, the operating unit is provided for selecting and / or changing a heating zone. In addition, the control unit to a setting of a Heating power and / or heating power density of a heating zone may be provided. 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. As an alternative, further embodiments of the operating unit and / or the operating parameter appearing appropriate to a person skilled in the art are conceivable. The cooktop apparatus 10a has a control unit 16a for operating the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. The control unit 16a is provided to execute actions and / or to change settings as a function of the operating parameters entered by means of the operating unit 18a. The cooktop apparatus 10a comprises a sensor unit for a detection of set up cooking utensils 14a. The sensor unit is formed essentially in one piece with the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a. The control unit 16a is connected to the sensor unit. The control unit 16a and the sensor unit are electrically connected.

In a method for operating the cooktop apparatus 10a, the control unit 16a combines heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a covered by installed cooking utensils 14a into heating zones in the event of detection of erected cooking utensils 14a. The control unit 16a automatically allocates a heating zone in cooking mode 14a set up in an operating mode. Here, the control unit 16a operates the combined heating zones to heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a, which are covered by erected cooking utensils 14a and form the heating zones. The control unit 16a operates the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a independently of each other in dependence on an operating parameter in a first operating mode and in a second operating mode with mutually dependent heating power densities. Here, in the first operating mode and in the second operating mode, the garnish occupancy is caused by substantially the same cooking utensils 14a. The second operating mode has a garment occupancy comparable to the first operating mode. An operating parameter is designed as Gargeschirr occupancy. In addition, an operating parameter is designed as an operating input by means of the operating unit 18a.

In the first operating mode, the control unit 16a assigns individual heating power densities to heating zones in dependence on an operating input by means of the operating unit 18a.

Here, the control unit 16a assigns the heating zone forming heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a a substantially equal heating power density. If, for example, a heating zone is formed by two juxtaposed heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a, the control unit 16a assigns a heating power density to the heating zone, which is determined by an operating input by means of the operating unit 18a. Here, the control unit 16a assigns the same heating power density to both heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a forming the heating zone. If heating zones are formed by a single heating element 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a, then the control unit 16a orders the heating elements 12a, 34a, 36a, 38a, 40a, 42a as a function of an operating input by means of the operating unit 18a , 44a, 46a individual heating power densities.

The control unit 16a automatically selects an operation mode from a group of operation modes depending on a garment occupancy. For example, the control unit 16a selects a suitable for the current Gargeschirr occupancy operating mode when changing the Gargeschirr occupancy from the group of operating modes. In order to detect changes in the garment occupancy, the sensor unit regularly detects the garment occupancy. If the garment occupancy changes, the control unit 16a deactivates those heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a which are covered before the garment occupancy change and are uncovered after the garment occupancy change. The control unit 16a activated when changing the Gargeschirr occupancy those heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a, which are uncovered before the change of Gargar occupancy and covered by the change of the Gargeschirr occupancy. When the garment occupancy changes, the control unit 16a maintains activation of those heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a which are covered before and after the garment occupancy change. If, for example, a heating output is changed by an operating input by means of the operating unit 18a, then the control unit 16a changes a heating power density of those heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a before and after, depending on an operating input by means of the operating unit 18a the change in the Gargeschirr occupancy are covered. Otherwise, the control unit 16a automatically maintains a heating power density of the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a covered before and after the change of garment occupancy. The group of operating modes includes the first operating mode and the second operating mode. moreover For example, the group of operation modes includes a third mode of operation in which the control unit 16a associates a heating element 12a, 40a located in the installed state with an operator facing area with a higher heating power density than a heating element 38a, 46a when installed an operator facing away from the area is arranged.

In the case of a heating zone formed by a heating element 38a covered by a first set of cooking utensils 14a ', the control unit 16a selects the first operating mode from the group of operating modes. Fig. 1 shows this case using the example in which the fourth heating element 38a is covered by the first set of cooking utensils 14a '. The control unit 16a assigns an individual heating power density to the heating zone as a function of an operating input by means of the operating unit 18a. In this case, the control unit 16a operates the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a independently of one another in the first operating mode. If, in addition to the first set of cooking utensils 14a ', a second cooking utensil 14a "is set up which covers two juxtaposed heating elements 34a, 36a operated by different inverters, the control unit 16a automatically changes from the first operating mode to the second operating mode (cf. Fig. 2 ). Here, the control unit 16a automatically shifts from the first operation mode to the second operation mode because the second upright cookware 14a "covers two juxtaposed heating elements 34a, 36a operated by different inverters 16. The control unit 16a operates the heating elements 12a, 34a, 36a, In this case, the control unit 16a operates the heating elements 12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a with the heating power density equal to that of the first set up heater 38a, 40a, 42a, 44a, 46a Garware 14a 'heated heating zone before setting up the second Gargeschirrs 14a "was assigned. After automatically selecting an operation mode from the group of operation modes, the control unit 16a outputs the operation mode automatically selected by the control unit 16a by means of the operation unit 18a. If an operator wishes to operate the set-up cooking utensils 14a ', 14a "in the first operating mode, a change of the operating mode is possible by an operating input by means of the operating unit 18a and the first operating mode when changing from the second operating mode to the first In operation mode, the control unit 16a maintains a heating power density of the heating zone heating the first set of cooking utensils 14a '. After switching from the second operating mode to the first operating mode, the control unit 16a prompts the operator for an operating input of a heating power density for the heating zone heated by the second cooking utensil 14a ".

In another case, the first erected cooking utensil 14a 'is displaced from the fourth heating element 38a to the third heating element 36a, which is disposed adjacent to the fourth heating element 38a. At the same time, a third cooking utensil 14a '"is placed adjacent to the first cooking utensil 14a', the third cooking utensil 14a '" covering the second heating element 34a associated with a different inverter than the third heating element 36a (see FIG. Fig. 3 ). The control unit 16a automatically selects the second mode of operation from a group of modes of operation depending on the garment occupancy. Here, the control unit 16a automatically changes from the first operation mode to the second operation mode because the erected cooking utensils 14a ', 14a'"cover two juxtaposed heating elements 34a, 36a operated by different inverters 16. The control unit 16a automatically changes from the first operating mode The control unit 16a operates both heating zones with substantially the same heating power density, in which the control unit 16a operates the heating zones with the heating power density with which the first cooking utensil 14a 'before moving the first cooking utensil 14a' and before setting up the third cooking utensil 14a '. "was heated in the first operating mode. After automatically selecting an operation mode from the group of operation modes, the control unit 16a outputs the operation mode automatically selected by the control unit 16a by means of the operation unit 18a. In the case of an operating input by means of the operating unit 18a, the control unit 16a switches between the second operating mode and the first operating mode and prompts the operator for an operating input of a heating power density for the heating zone heated by the third cooking utensil 14a '".

In a further case, in addition to the first set of cooking utensils 14a ', a second cooking utensil 14a "is set up, which covers two juxtaposed heating elements 12a, 34a, which are operated by a common inverter, whereby an uncovered heating element 36a is arranged between the two heating zones. The control unit 16a automatically selects the first one Operating mode from the group of operating modes off. In this case, the control unit 16a automatically selects the first operating mode from the group of operating modes, since an uncovered heating element 36a is arranged between the two heating zones. After automatically selecting an operation mode from the group of operation modes, the control unit 16a outputs the operation mode automatically selected by the control unit 16a by means of the operation unit 18a. The control unit 16a automatically maintains the first operating mode. The control unit 16a maintains the heat density with which the first set of cooking utensils 14a 'are heated and requests the operator to enter a heating power density for the heating zone for the second cooking utensil 14a ". operate in the second operating mode, a change of the operating mode by an operator input by means of the operating unit 18a is possible. The control unit 16a switches between the first operating mode and the second operating mode as a function of an operating input by means of the operating unit 18a. The control unit 16a operates the heating elements 12a forming the heating zones in the second operating mode with substantially equal heating power density. Here, the control unit 16a operates the heating zones with the heating power density with which the first cooking utensil 14a 'was operated before the second cooking utensil 14a "was set up in the first operating mode.

In a further case, a heating zone is formed by two juxtaposed heating elements 12a, which are assigned to different inverters. For example, the heating zone is formed by the second heating element 34a and the third heating element 36a (cf. Fig. 5 ). The heating zone forming heating elements 34a, 36a are covered by an erected cooking utensil 14a. "The control unit 16a automatically selects the second operating mode from the group of operating modes." In this case, the control unit 16a automatically selects the second operating mode from the group of operating modes heating elements 34a, 36a forming the heating zone are covered by a single set of cooking utensils 14a "and assigned to different inverters. After automatically selecting an operation mode from the group of operation modes, the control unit 16a outputs the operation mode automatically selected by the control unit 16a by means of the operation unit 18a. The control unit 16a assigns a heating power density to the heating zone as a function of an operating input by means of the operating unit 18a. In this case, the control unit 16a operates the two heating elements 34a, 36a forming the heating zone with substantially the same Heating power density. In addition to the second cooking utensil 14a ", a third cooking utensil 14a '" is placed adjacent to the second cooking utensil 14a ", the third cooking utensil 14a'" covering a heating element 12a that is adjacent to the two heating elements 34a, 36a, the heating zone for the second The control unit 16a automatically selects the second mode of operation from the group of modes of operation The controller 16a automatically maintains the second mode of operation After automatically selecting one mode of operation from the group of modes of operation, the controller 16a sets the mode of operation The control unit 16a operates the heating elements 12a, 34a, 36a forming the heating zones with substantially equal heating power density Cookware 14a "before setting up the third cooking utensil 14a '"in the second operating mode.

In Fig. 7 to 9 a further embodiment of the invention is shown. The following descriptions are essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the embodiment of Fig. 1 to 6 can be referenced. To distinguish the embodiments, the letter a in the reference numerals of the embodiment in the Fig. 1 to 6 by the letter b in the reference numerals of the embodiment of Fig. 7 to 9 replaced. With respect to identically designated components, in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the embodiment of Fig. 1 to 6 to get expelled.

Fig. 7 shows a cooktop 24b according to the invention, which is designed as an induction cooktop, with a cooktop device 10b according to the invention, which is designed as an induction cooktop device. The hob apparatus 10b includes four heating elements 12b, 34b, 36b, 38b for heating up cooking utensils 14b '. The heating elements 12b, 34b, 36b, 38b, which are designed as induction heating elements, are arranged below a main body 26b. The heating elements 12b, 34b, 36b, 38b are each provided to heat on the main body 26b above the heating elements 12b, 34b, 36b, 38b set up cooking utensils 14b '. The heating elements 12b, 34b, 36b, 38b, which are designed as classic heating elements 12b, 34b, 36b, 38b, form a classic hob 22b. Each two of the heating elements 12b, 34b, 36b, 38b are with respect to a row longitudinal direction 32b arranged one behind the other. The two with respect to the row longitudinal direction 32b successively arranged heating elements 12b, 34b, 36b, 38b are spaced from each other. Each of the two with respect to the row longitudinal direction 32b successively arranged heating elements 12b, 34b forms an independent heating zone. A first heating element 12b is arranged in an area facing an operator in the installed state. A second heating element 34b is arranged behind the first heating element 12b with respect to the row longitudinal direction 32b. The two heating elements 12b, 34b, arranged one behind the other with respect to the row longitudinal direction 32b, have a substantially identical diameter. A third heating element 36b is disposed in an installed state facing an operator area. A fourth heating element 38b is disposed behind the third heating element 36b with respect to the longitudinal direction 32b. The two with respect to the row longitudinal direction 32b successively arranged heating elements 36b, 38b have different diameters.

The hob device 10b includes supply electronics for supplying the heating elements 12b, 34b, 36b, 38b. The supply electronics comprises four inverters which are each provided for supply by a heating element 12b, 34b, 36b, 38b.

The hob device 10b has a control unit 16b for operating the heating elements 12b, 34b, 36b, 38b. The hob device 10b comprises a sensor unit for detecting mounted cooking utensils 14b. The sensor unit is formed essentially in one piece with the heating elements 12b, 34b, 36b, 38b. The control unit 16b is connected to the sensor unit.

In a method for operating the hob device 10b, the control unit 16a combines heating elements 12b, 34b, 36b, 38b covered by installed cooking utensils 14b into heated zones in the event of detection of set cooking utensils 14b by the sensor unit. The control unit 16b automatically allocates a heating zone 14b set up in an operating mode to a cooking zone 14b. In this case, the control unit 16b operates the heating elements 12b, 34b, 36b, 38b which are combined to form heating zones and which are covered by the cooking utensils 14b and form the heating zones. The control unit 16b operates the heating elements 12b, 34b, 36b, 38b independently of each other in dependence on an operating parameter in a first operating mode and in a second operating mode with mutually dependent heating power densities. Here is in the first operating mode and in the second operating mode, the garnish occupancy caused by substantially the same cooking utensils 14b. The second operating mode has a garment occupancy at least comparable to the first operating mode. An operating parameter is designed as Gargeschirr occupancy. In addition, an operating parameter is designed as an operating input by means of an operating unit 18b.

The control unit 16b automatically selects an operating mode from among a group of operating modes depending on a garment occupancy. For example, the control unit 16b selects a suitable for the current Gargeschirr occupancy mode when changing the Gargeschirr occupancy from the group of operating modes. To detect changes in the Gargeschirr occupancy, the sensor unit detects the Gargeschirr occupancy regularly. When changing the Gargeschirr occupancy of the control unit 16b deactivates those heating elements 12b, 34b, 36b, 38b, which are covered before the change of garment occupancy and are uncovered after changing the garment occupancy. The control unit 16b activated when changing the Gargeschirr occupancy those heating elements 12b, 34b, 36b, 38b, which are uncovered before changing the Gargeschirr occupancy and covered by the change of the Gargeschirr occupancy. When changing the Gargar occupancy, the control unit 16b maintains an activation of those heating elements 12b, 34b, 36b, 38b, which are covered before and after the change of Gargar occupancy. If, for example, a heating output is changed by an operating input by means of the operating unit 18b, then the control unit 16b changes a heating power density of those heating elements 12b, 34b, 36b, 38b which are covered before and after the change of the garment occupancy depending on an operating input by means of the operating unit 18b , Otherwise, the control unit 16a automatically maintains a heating power density of the heating elements 12b, 34b, 36b, 38b covered before and after the change of the garment occupancy. The control unit 16b automatically maintains a heating power density of the heating elements 12b, 34b, 36b, 38b covered before and after the change of the garment occupancy, or changes a heating power density of the heating elements 12b, 34b, 36b in response to an operation input by the operation unit 18b , 38b, which are covered before and after the change of the garment occupancy. The group of operating modes includes the first operating mode and the second operating mode. In addition, the group of operating modes comprises a third mode of operation in which the control unit 16b comprises a heating element 12b, 36b, which is arranged in the installed state in an operator facing area, a higher Heizleistungsdichte assigns than a heating element 34b, 38b, which is arranged in the installed state in an operator remote area.

In the case of a heating zone formed by a heating element 12b, 34b, 36b, 38b covered by a first set of cooking utensils 14b ', the control unit 16b selects the first operating mode from the group of operating modes. The control unit 16b selects the first mode of operation from the group of operating modes, since exactly one heating element 12b, 34b, 36b, 38b is covered by the set of cooking utensils 14b '. Fig. 7 shows this case using the example in which the second heating element 34b is covered by the first set of cooking utensils 14a '. The control unit 16b assigns the heating zone an individual heating power density as a function of an operating input by means of the operating unit 18b. In this case, the control unit 16b operates the heating elements 12b, 34b, 36b, 38b independently of one another in the first operating mode. In addition to the first set of cooking utensils 14b ', a third cooking utensil 14b'"is placed on a heating element 12b, 34b, 36b, 38b which is closest to the row longitudinal direction 32b (cf. Fig. 8 ). The third cooking utensil 14b '"covers the first heating element 12b closest to the second heating element 34b covered by the first set of cooking utensils 14b' with respect to the row longitudinal direction 32. The control unit 16b automatically selects the first operating mode from the group of operating modes the control unit 16b automatically selects the first mode of operation from the group of operating modes, since the heating elements 12b, 34b closest to the row longitudinal direction 32b are covered by different erected cooking utensils 14b ', 14b'". The control unit 16b operates the heating elements 12b, 34b, 36b, 38b with the heating power density assigned to the heating zone heating the first set of cooking utensils 14b 'prior to setting up the third cooking utensil 14b' Control unit 16b maintains the operating mode which control unit 16b has automatically selected by means of operating unit 18b The control unit 16b retains the first operating mode The control unit 16b maintains and requests the heating power density with which the first set of cooking utensils 14b 'are heated Operator for an operating input of a Heizleistungsdichte for the third cooking utensil 14b "'heated heating zone. Should an operator wish to operate the set-up cooking utensils 14b ', 14b "' in the second operating mode, then a change of the operating mode is by a Operating input by means of the control unit 18b possible. The control unit 16b alternates between the first operating mode and the second operating mode as a function of an operating input by means of the operating unit 18b. When changing from the first operating mode to the second operating mode, the control unit 16b operates both heating elements 12b, 34b with the heating power density with which the second heating element 34b was heated prior to setting up the third cooking utensil 14b '. "The control unit 16a operates the heating elements 12b , 34b in the second operating mode with substantially the same heating power density.

In a further case, a second cooking utensil 14b "is set up which covers two heating elements 12b closest to the row longitudinal direction 32b. Fig. 9 shows this case using the example in which the first heating element 12b and the second heating element 34b are covered by the second set of cooking utensils 14b ". The control unit 16b automatically selects the second operating mode from a group of operating modes depending on the garment occupancy the control unit 16b automatically selects the second mode of operation from the group of modes of operation since the heating elements 12b, 34b closest to the array longitudinal direction 32b are covered by the same cooking utensil 14b '. 34b to a common heating zone and assigns the formed heating zone the second cooking utensils 14b "to. After automatically selecting an operation mode from the group of operation modes, the control unit 16b outputs the operation mode, which the control unit 16b has automatically selected, by means of the operation unit 18b. The control unit 16b requests an operator to input a heating power density for the heating zone heated by the second cooking utensil 14b "." If an operator wishes to operate the erected cooking utensil 14b "in the first operating mode, a change of the operating mode is through an operating input by the operating unit 18b possible. The control unit 16b switches between the second operating mode and the first operating mode as a function of an operating input by means of the operating unit 18b. The control unit 16b requests an operator to enter a heating power density for each of the heating elements 12b, 34b heated by the second cooking utensil 14b "The heating elements 12b, 34b heating the second cooking utensil 14b" are activated by the control unit 16b in response to a heating power density Operating input operated by means of the control unit 18b with different or the same Heizleistungsdichten.

reference numeral

10

Hob device

12

heating element

14

cooking containers

16

control unit

18

operating unit

20

Variable cooking surface area

22

Classic hob

24

hob

26

body

28

longitudinal extension

30

transverse extension

32

Series longitudinally

34

heating element

36

heating element

38

heating element

40

heating element

42

heating element

44

heating element

46

heating element

48

Variable cooking surface area

Claims (10)

1. Hotplate device with at least two heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a; 12b, 34b, 36b, 38b) at least for heating placed cooking utensils (14a-b) and with at least one control unit (16a-b), which as a function of at least one operating parameter is provided to operate the heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a; 12b, 34b, 36b, 38b) in at least one first operating mode independently from one another and in at least one second operating mode, which has a cooking utensil configuration at least comparable to the first operating mode, with heating power densities dependent on one another, characterised in that the control unit (16a-b) is provided to select an operating mode from at least one group of operating modes, which at least comprises the first operating mode and the second operating mode, automatically as a function of a cooking utensil configuration.
2. Hotplate device according to claim 1, characterised in that the control unit (16a-b) is provided to operate the heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a; 12b, 34b, 36b, 38b) with at least essentially equal heating power densities in the second operating mode.
3. Hotplate device according to one of the preceding claims, characterised in that the control unit (16a-b) is provided to output at least one operating mode, which the control unit (16a-b) has selected automatically, by means of at least one operating unit (18a-b).
4. Hotplate device according to one of the preceding claims, characterised in that the control unit (16a-b) is provided to switch between the first operating mode and the second operating mode by means of at least one operating unit (18a-b) as a function of an operating input.
5. Hotplate device according to one of the preceding claims, characterised in that the control unit (16a-b) is provided to automatically allocate at least one heating zone to cooking utensils (14a-b) placed in at least one operating mode.
6. Hotplate device according to one of the preceding claims, characterised in that at least some of the heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a) embody a variable cooking surface area (20a, 48a).
7. Hotplate device according to claim 6, characterised in that the heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a) embodying the variable cooking surface area (20a, 48a) are arranged in a single row.
8. Hotplate device according to one of the preceding claims, characterised in that at least some of the heating elements (12b, 34b, 36b, 38b) embody a classic hotplate (22b).
9. Hotplate with at least one hotplate device (10a-b) according to one of claims 1 to 8.
10. Method for operating a hotplate device (10a-b) according to one of claims 1 to 8, with at least two heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a; 12b, 34b, 36b, 38b) at least for heating placed cooking utensils (14a-b) and with at least one control unit (16a-b), wherein as a function of at least one operating parameter the heating elements (12a, 34a, 36a, 38a, 40a, 42a, 44a, 46a; 12b, 34b, 36b, 38b) are operated by the control unit (16a-b) in at least one first operating mode independently from one another and in at least one second operating mode, which has a cooking utensil configuration at least comparable to the first operating mode, are operated with heating power densities dependent on one another, characterised in that an operating mode is automatically selected by the control unit (16a-b) from at least one group of operating modes, which at least comprises the first operating mode and the second operating mode, as a function of a cooking utensil configuration.

Images