EP3001772A1 - Hotplate device - Google Patents

Abstract

In order to provide a generic device with improved comfort characteristics for an operator, a cooktop device, in particular an induction cooktop device, is provided with at least two heating elements (12a-b) defining a variable cooktop area (14a-b) and a control unit (Fig. 16a-b), which is provided in at least one operating state when using at least two cooking utensils (18a-b, 20a-b, 22b) in the variable cooking surface area (14a-b), a first cooking utensil (18a-b) of operating at least two cooking utensils (18a-b, 20a-b, 22b) in a power-move heating mode in which the control unit (16a-b) is adapted to operate the first cooking utensil (18a-b) in response to a position of the first cooking utensil (18a-b) in the variable cooking surface area (14a-b) with different heating power densities, and a second cooking utensil (20a-b) of the at least two cooking utensils (18a-b, 20a-b, 22b) in a normal heating mode.

Description

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

From the prior art, a hob apparatus is already known, which has a plurality of heating elements that define a variable cooking surface area. The cooktop apparatus comprises an operating unit for inputting operating parameters to an operation of set up cooking utensils. Furthermore, the cooktop device comprises a control unit which, depending on an operating input by means of the operating unit, heats the erected cooking utensil with a specific heat power density. A change in the specific heating power density occurs only as a function of a cooking program and thus independently of a position of the cooking utensil in the variable cooking surface area.

The object of the invention is in particular to provide a generic device with improved properties in terms of high comfort for an operator. The object is achieved by the features of claims 1 and 12, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.

There is proposed a cooktop device, in particular an induction cooktop device, with at least two heating elements, which define a variable cooktop area, and with a control unit which, when using at least two cooking utensils in the variable cooking surface area, in particular with any arrangement of the at least two cooking utensils, in at least one Operating state, in particular a split operating state and / or a mixed operating state, is provided to operate a first cooking utensils of the at least two cooking utensils in a power-move heating mode, in which the control unit is provided to the first cooking utensil in dependence to heat a position of the first cooking utensil in the variable cooking surface area with different heating power densities, and to operate a second cooking utensil of the at least two cooking utensils in a normal heating mode. In particular, at least one part, in particular a subassembly, of a cooking field, in particular one Induction hob, to be understood. In particular, the hob device may also comprise the entire hob, in particular the entire induction hob. In this context, a "heating element" is to be understood as meaning, in particular, an element which is intended to convert energy, preferably electrical energy, into heat and, in particular, to supply at least one cooking utensil to the at least two cooking utensils. Advantageously, the at least one heating element is designed in particular as an induction heating element and is preferably provided to generate an electromagnetic alternating field, in particular with a frequency between 20 kHz and 100 kHz, which is provided in particular in a set up, in particular metallic, preferably ferromagnetic, cooking utensil bottom Eddy current induction and / or remagnetization effects to be converted into heat. A "variable cooking surface area" is to be understood in particular as an area on a side facing a user in a mounting position of a cooking surface of the hob device, which advantageously in any particular operating condition for heating at least one Gargeschirrs, which in the installation position in particular at any position the hob plate is placed in the area formed by the at least two heating elements, is provided. In particular, the control unit assigns at least one heating zone to at least one cooking utensil arranged within the variable cooktop area and operates the at least one cooking utensil in particular with a heating power density assigned to the at least one cooking utensil. In this case, when the at least one cooking utensil is displaced within the variable cooktop area from any point A to another arbitrary point B, the control unit automatically operates the at least one cookware continuously with at least substantially constant heat density, wherein the control unit controls the at least one heating zone with the at least one Gargeschirr mitverschiebt and / or wherein the at least one heating zone mitwandert with the at least one cooking utensils. In particular, the hob device comprises at least two, in particular at least four, advantageously at least six, particularly advantageously at least eight, preferably at least ten, preferably at least twelve and more preferably at least fifteen heating elements defining the variable cooking surface area and advantageously in the form of a particular common and advantageous single Matrix are arranged. Here, the at least two heating elements are arranged in particular in a spatial proximity to each other, wherein in particular a gap, in particular at least 20%, advantageously at least 40%, particularly advantageously at least 60% and preferably at least 80% of at least one extension of a heating element is the at least two heating elements is excluded between the at least two heating elements. In this case, at least two arbitrarily arranged heating elements of the at least two heating elements arranged adjacent to one another have a maximum distance of at most 10 cm, in particular at most 7 cm, advantageously at most 5 cm, particularly advantageously at most 3 cm and preferably at most 2 cm. The at least two heating elements in particular cover an area fraction of at least 70%, in particular of at least 75%, advantageously of at least 80%, particularly advantageously of at least 85% and preferably of at least 90% of the variable cooking surface area, in which of the at least two Covering area of the variable cooktop area covered at least one portion of at least one heating element of at least two heating elements, in particular on the side facing away from the operator in the installation position of the cooktop panel. In at least one mounted state, boundaries of the variable cooktop area, which are aligned in particular parallel to a main extension plane of the cooktop plate, are advantageously determined by an arrangement of the at least two heating elements, which are arranged in the installation position on a side of the cooktop panel facing away from an operator in the installed position. The variable cooking surface area extends in the installation position and in the at least one mounted state advantageously over a proportion of at least 70%, advantageously of at least 80% and particularly advantageously of at least 90% of a surface of the hob plate. In this case, the variable cooking surface area in the installation position is arranged in particular on the side of the hob plate facing an operator. 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 in particular provided to control at least the heating elements and in particular at least one power electronics supplying the heating elements / or to regulate. 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. An "operating state" is to be understood in particular a state in which at least the control unit is supplied with energy, in particular with electrical current is and in which the control unit advantageously controls the at least one power electronics, in particular to operate at least one heating element of the at least two heating elements and to heat by means of at least one power electronics and / or by means of the at least one heating element in particular at least one set up cooking utensils. The control unit is provided in particular to operate all set-up cooking utensils in particular in exactly one heating mode and / or at least partially in different heating modes, the control unit advantageously operating each cooking utensil in an individual heating mode and / or in particular the cooking utensils depending on a positioning in a portion of the variable cooking surface area in different heating modes operates. The at least one operating state could in particular be a mixed operating state and / or a split operating state. A "split operating state" is to be understood in particular as an operating state in which the control unit divides the variable cooking surface area into at least two sections, wherein the control unit in particular has at least one set of cooking utensils and advantageously all set up cooking utensils, in particular in exactly one heating mode and / or at least partly operates in the different heating modes. A "mixed operating state" is to be understood in particular as an operating state in which the control unit advantageously assigns at least two, in particular at least three, advantageously at least four, particularly advantageously at least five and preferably each set up cooking utensils of the at least two cooking utensils an individual heating mode and each of at least two cooking utensils in the at least two cooking dishes associated heating mode operates. For example, the control unit could operate the at least two cooking utensils in different heating modes associated with the respective cooking utensil. Alternatively or additionally, the control unit could operate the at least two cooking utensils in, in particular, exactly one and advantageously common heating mode assigned to the respective cooking utensil. A "power-move heating mode" is to be understood in particular as an operating mode in which the control unit operates a cooking utensil in a position-dependent manner within the variable cooktop area with different heating power densities, the control unit advantageously modifying the cooking utensil with at least one change in position of the cookware relative to a reference position Operating heat density and / or wherein the control unit in particular a Heizleistungsdichte, with which the cooking utensil is to be operated, depending on a distance of the cooking utensils determined to the reference position, in particular after setting up the cooking utensils within the variable cooking surface area. The change in position of the cooking utensil can be achieved in particular in different ways. For example, the change in position of the cooking utensil could be achieved by moving the cooking utensil, wherein in particular a contact between a bottom of the cooking utensil and a surface of the hob plate at least substantially remains. In particular, the change in position could be achieved by lifting and immediately repositioning the same cooking utensils at a changed position, in particular between the lifting and the immediate repositioning, a time duration of less than 5 s, in particular less than 2 s and advantageously less than 1 s , A "reference position" for the power-move heating mode is to be understood, in particular, as a position to which the control unit assigns a fixed, fixed value of a heating power density and depending on which the control unit determines further values of the heating power density for further positions. A "normal heating mode" is to be understood in particular an operating mode in which the control unit is provided to operate at least one cooking utensil regardless of a position within the variable cooking surface area always with at least substantially constant Heizleistungsdichte, in particular also in a position change the at least one cooking utensil within the variable cooking surface area. An amount of the heating power density to be achieved is, in particular, a value resulting from an operating input by means of an operating unit, which is set in particular by the operating input by means of the operating unit and / or advantageously calculated by the control unit on the basis of the operating input by means of the operating unit. In an alternative embodiment, an amount of the heating power density to be achieved could be predetermined, wherein the amount of the heating power density to be achieved could be stored in the memory unit of the control unit as a fixed preprogrammed value and / or as a value that can be changed by the operator. An "at least substantially constant" heating power density is intended in particular to mean a deviation of at most 30%, in particular of not more than 25%, of a maximum of 20%, particularly advantageously of not more than 15%, preferably not more than 10% and particularly preferably not more than 5% a value of the heating power density to be achieved. Under the phrase that the control unit is intended to "operate" a cooking utensil, should be understood in particular that the control unit, the at least one Power electronics activates which, depending on a control by the control unit supplies at least one of the cooking utensil covered heating element of the at least two heating elements energy, in particular to heat the cooking utensils. By "provided" is intended to be understood in particular 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.

The inventive design, in particular, a high level of comfort for an operator can be achieved. In particular, high flexibility can be achieved by several different heating modes. In the power-move heating mode, a simple and intuitive adjustment and / or variation of a heating power density can advantageously be achieved, in particular by changing the position of the first cooking utensil.

It is also proposed that the control unit is provided in at least one further operating state, in particular in the split operating state and / or in the mixed operating state, to operate the second cooking utensil in a further heating mode different from the normal heating mode, thereby In particular, a flexibility can be further increased.

In addition, it is proposed that the control unit be provided in the at least one further operating state, in particular in the split operating state and / or in the mixed operating state, to operate the second cooking utensil in a power-move heating mode. In the power-move heating mode of operating the second cooking utensil, the control unit may operate to have a heating power density substantially identical to the power-move heating mode for operating the first cooking utensil and / or one of the power-move heating mode use different course of Heizleistungsdichten the first cooking utensils. The control unit could alternatively or additionally be provided in the at least one further operating state, the second cooking utensils in a cooking program heating mode, in particular with at least one predefined course of Heizleistungsdichten and / or advantageously with at least one predefined period of time operate. This can be achieved in particular a high level of comfort for an operator.

Furthermore, it is proposed that the control unit is provided, in particular in each operating state, to output at least one operating request to a choice of a heating mode for heating the cooking utensil, in particular to an operator when setting up a cooking utensil, in particular by means of an output unit of the operating unit, whereby in particular a high level of satisfaction in an operator who can advantageously decide which cooking utensil is to be operated in which heating mode, can be achieved.

Furthermore, it is proposed that the control unit, in particular in the split operating state, be provided for subdividing the variable cooktop area into at least two sections with different heating modes. Specifically, in the split mode, the control unit divides the variable cooking surface area into a first section in which the control unit sets up cooking utensils set in the power move heating mode and a second section in which the control unit operates erected cooking utensils in the normal heating mode , When setting up a cooking utensils, the control unit assigns the cooking utensil in dependence on one of the at least two sections, in which the cooking utensils are arranged by a first positioning of the cooking utensils advantageously a heating mode, which is in particular assigned to that of the at least two sections, in which Garware is arranged by a first-time positioning of the cooking utensils. In particular, the control unit determines the heating mode associated with the cooking utensil by setting up the cooking utensil. In particular, the control unit retains the cooking mode associated with the cooking mode at a change in position of the cooking utensils, in particular in a change in position of the cooking utensils between different of the at least two sections, and advantageously dispenses with a change in the cooking appliance associated heating mode. Alternatively, the control unit could change in a change in position of the Gargeschirrs between different of the at least two sections of the Garware associated heating mode. As a result, in particular a flexible embodiment can be achieved.

There are various ways to divide the variable cooking surface area in the at least two sections. In particular, the control unit could be provided to divide the variable cooktop area in the installation position into a first section facing an operator and a second section facing away from the operator. Alternatively or additionally, the control unit could in particular be provided to divide the variable cooktop area in the installation position substantially diagonally, for example along a diagonal of the cooktop panel and / or in at least one direction parallel to the diagonal. The control unit could alternatively or additionally subdivide the variable cooktop area, in particular in the form of a grid, into a plurality of sections and / or advantageously radially, in particular starting from at least one corner of the variable cooktop area into the at least two sections. However, the control unit is advantageously provided, in particular in the split operating state, to subdivide the variable cooktop area, in particular from an operating position of an operator, into a first, left section and a second, right section. The at least two sections extend in particular in ay direction, which in the installed position is advantageously aligned from the area facing an operator into the area facing away from the operator and advantageously extends in the main extension plane of the cooking field plate. The first, left-hand portion and the second, right-hand portion are arranged in particular adjacent to an x-direction, wherein the first, left-hand portion and the second, right-hand portion advantageously directly adjoin one another. The x-direction is aligned in particular perpendicular to the y-direction and extends advantageously in a main plane of extension of the hob plate. As a result, in particular a simple handling by an operator and / or an easily subdivided subdivision of the variable cooktop area can be achieved.

There are various possibilities with respect to a reference position for the power-move heating mode conceivable. For example, the control unit could be provided to define at least one limitation of the variable cooktop area as a reference position for the power move heating mode, such as a limitation in the installation position facing an operator and / or in particular a limit facing away from an operator in the installation position. In particular, the control unit could be at least one of the opposite with respect to the x-direction Set the lateral boundaries of the variable cooking surface area as the reference position for the Power Move heating mode. Alternatively, the control unit could be provided to set at least one corner of the variable cooking surface area as the reference position for the power-move heating mode. Preferably, however, the control unit is provided to set a current position and / or an installation position of a cooking utensil as a reference position for the power move heating mode, wherein the control unit is provided in particular to the cooking utensil with a change in position of the cooking utensil relative to the reference position with changed Operating heat density. An "installation position" of a cooking utensil is to be understood, in particular, as a position of the cooking utensil on the cooktop panel in the variable cooktop area, which is determined by a particular first-time positioning of the cooking utensil on the cooktop panel in the variable cooktop area and which can not be changed, in particular following the initial positioning is fixed. A "current position" of a cooking utensil is to be understood in particular to mean a position of the cooking utensil on the hob plate in the variable cooktop area in which the cooking utensil is currently arranged. Immediately after a positioning of the cooking utensils, in particular when the position remains unchanged and advantageously when dispensing with a change in the position of the cooking utensils, the current position of the cooking utensil corresponds in particular at least substantially to the set-up position. The current position is different in particular in a change in position of the cooking utensils after initial positioning of the installation position. As a result, in particular a flexible embodiment can be achieved.

It is also proposed that the control unit is provided to set an installation position of a cooking utensil as a reference position for the power-move heating mode of the cooking utensils, in particular the same cooking utensils, whereby in particular a high planning security and / or a high level of comfort for an operator can be achieved ,

In addition, it is proposed that the control unit is provided to set a current position of a cooking utensil as a reference position for a different from the cooking dishes cooking utensils. In an alternative embodiment, the control unit could be provided to a current position of a cooking utensil as Set reference position for the same cooking utensils. As a result, in particular a high degree of flexibility can be achieved.

Various values of the heating power density assigned to the reference position are conceivable. For example, the control unit could be provided to assign a minimum heating power density to the reference position, wherein the control unit operates a cooking utensil in a change in position of the cooking utensil relative to the reference position of the cooking utensil with changed heating power density. Preferably, however, the control unit is provided to assign a maximum heating power density to the reference position, whereby, in particular, a rapid heating process 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. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Fig. 1

ein Kochfeld mit einer Kochfeldvorrichtung in einer schematischen Draufsicht,

Fig. 2

das Kochfeld mit der Kochfeldvorrichtung in einem Normal-Betriebszustand in einer schematischen Draufsicht,

Fig. 3

das Kochfeld mit der Kochfeldvorrichtung in einem Split-Betriebszustand in einer ersten Konfiguration in einer schematischen Draufsicht,

Fig. 4

das Kochfeld mit der Kochfeldvorrichtung in dem Split-Betriebszustand in einer zweiten Konfiguration in einer schematischen Draufsicht,

Fig. 5

das Kochfeld mit der Kochfeldvorrichtung in einem Misch-Betriebszustand in einer ersten Konfiguration in einer schematischen Draufsicht,

Fig. 6

das Kochfeld mit der Kochfeldvorrichtung in dem Misch-Betriebszustand in einer zweiten Konfiguration in einer schematischen Draufsicht,

Fig. 7

das Kochfeld mit der Kochfeldvorrichtung in dem Misch-Betriebszustand in einer dritten Konfiguration in einer schematischen Draufsicht,

Fig. 8

das Kochfeld mit der Kochfeldvorrichtung in dem Misch-Betriebszustand in einer vierten Konfiguration in einer schematischen Draufsicht,

Fig. 9

das Kochfeld mit der Kochfeldvorrichtung in dem Misch-Betriebszustand in einer fünften Konfiguration in einer schematischen Draufsicht und

Fig. 10

das Kochfeld mit der Kochfeldvorrichtung in dem Misch-Betriebszustand in einer sechsten Konfiguration in einer schematischen Draufsicht.

Show it:

Fig. 1

a hob with a hob device in a schematic plan view,

Fig. 2

the hob with the hob device in a normal operating state in a schematic plan view,

Fig. 3

the hob with the hob device in a split mode in a first configuration in a schematic plan view,

Fig. 4

the hob with the hob device in the split mode in a second configuration in a schematic plan view,

Fig. 5

the hob with the hob device in a mixed mode in a first configuration in a schematic plan view,

Fig. 6

the hob with the hob device in the mixed mode in a second configuration in a schematic plan view,

Fig. 7

the hob with the hob device in the mixing mode in a third configuration in a schematic plan view,

Fig. 8

the hob with the hob device in the mixed mode in a fourth configuration in a schematic plan view,

Fig. 9

the hob with the hob device in the mixing mode in a fifth configuration in a schematic plan view and

Fig. 10

the hob with the hob device in the mixing mode in a sixth configuration in a schematic plan view.

Fig. 1 shows a cooktop 34, which is formed as an induction cooktop, with a cooktop device 10, which is designed as an induction cooktop device. The cooktop apparatus 10 includes a cooktop panel 36. In an assembled condition, the cooktop panel 36 is provided for installation of cookware 18, 20, 22. The hob apparatus 10 includes a plurality of heating elements 12 defining a variable cooking surface area 14. In the present exemplary embodiment, the hob device 10 comprises forty-eight heating elements 12. The heating elements 12 are arranged in an installed position on a side of the hob plate 36 facing away from the operator. The heating elements 12 are each provided to heat cooking dishes 18, 20, 22 placed on the hob plate 36 in the variable cooking surface area 14. The heating elements 12 are designed as induction heating elements. The hob device 10 includes power electronics for powering the heating elements 12.

The cooktop panel 36 has a main extension plane, which is oriented substantially horizontally in the installed position. An x-direction and a y-direction are arranged in a plane spanned by the main plane of extension. The y-direction is oriented substantially perpendicular to the x-direction. The main extension plane of the hob plate 36 is parallel to a largest side surface of a smallest geometric cuboid, which just completely surrounds the hob plate 36. The main extension plane of the hob plate 36 extends through the center of the cuboid. In the installation position, the main extension plane of the hob plate 36 is aligned substantially perpendicular to a direction of gravity. Thus, the x-direction and the y-direction are aligned in the installed position substantially perpendicular to a direction of gravity.

The hob device 10 comprises an operating unit 38 for input and / or selection of operating parameters, for example a heating power and / or a heating power density and / or a heating mode and / or a heating zone. The operating unit 38 is provided for outputting a value of an operating parameter to an operator. In this case, the operating unit could optically and / or acoustically output the value of the operating parameter to an operator. The hob device 10 comprises a control unit 16, which is provided to execute actions and / or to change settings in dependence on operating parameters entered by means of the operating unit 38. The control unit 16 regulates an energy supply to the heating elements 12 in an operating state. For this purpose, the control unit 16 controls the power electronics in order to supply the activated heating elements 12 with electric current. The cooktop apparatus 10 includes at least one electrical lead (not shown) intended to carry electrical current. The electrical line could be formed for example by a cable, a wire and / or a stranded wire.

The control unit 16 has a memory unit (not shown) in which a plurality of different operating states are stored. For example, a normal operating state, a split operating state and a mixed operating state are stored in the storage unit. In the storage unit of the control unit 16 are plural Heating modes, such as a power move heating mode, a normal heating mode and various cooking program heating modes stored.

When setting up a cooking utensil 18, 20, 22 in the normal operating state, the control unit 16 issues an operating request by means of the operating unit 38 to an input of an operating parameter, such as a heating power and / or a heating power density, to the operator. After successful operator input by means of the operating unit 38, the control unit 16 in the normal operating state operates the cooking utensil 18, 20, 22 on the basis of the operating input with a heating power density to be achieved. The heating power density with which the control unit 16 operates the cooking utensil 18, 20, 22 is independent of a position of the cooking utensil 18, 20, 22 in the variable cooking surface area 14 in the normal operating state.

For example, in the normal operating state, an operator sets up a first cooking utensil 18 in the variable cooktop area 14 (cf. Fig. 2 ). The control unit 16 outputs in the normal operating state by means of the operating unit 38 an operating request for an input of an operating parameter. The control unit 16 determines a heating power density to be achieved on the basis of the operating input by means of the operating unit 38. In the normal operating state, the control unit 16 operates the first cooking utensil 18 with a first heating power density. An operator then sets a second cooking utensil 20 in the variable cooking surface area 14 in the normal operating state. After successful operator input by means of the operating unit 38, the control unit 16 in the normal operating state operates the second cooking utensil 20 on the basis of the operating input with a second heating power density. The second heating power density is smaller than the first heating power density in the considered case. Here and below, a heating power density, with which the control unit 16 operates a cooking utensil 18, 20, is characterized by a hatching of the corresponding cooking utensil 18, 20, wherein a broad hatching corresponds to a low heating power density and a narrow hatching corresponds to a high heating power density.

In a further case, an operator selects, for example by means of an operating input by means of the operating unit 38a, the split operating state, which can be selected when using a number of at least two cooking utensils 18a, 20a (cf. Fig. 3 ). When using at least two cooking utensils 18a, 20a in the variable Cooking surface area 14a operates the control unit 16a in the split mode, a first cooking utensils 18a of the at least two cooking utensils 18a, 20a in a power-move heating mode. In the power-move heating mode, the control unit 16a in the split operating state heats the first cooking utensil 18a in response to a position of the first cooking utensil 18a in the variable cooking surface area 14a having different heating power densities. In the present embodiment, in the split-operation state, in the power-move heating mode, the control unit 16a heats the first cooking utensil 18a located at an operator-facing position with a maximum heating power density. In the split mode, the control unit 16a operates a second cooking utensil 20a of the at least two cooking utensils 18a, 20a in a normal heating mode. In the normal heating mode, in the split operating state, the control unit 16a heats the second cooking utensil 20a in a position-independent manner with a substantially constant heating power density.

As is apparent from what has just been stated, in a method for operating the hob device 10a when using at least two cooking utensils 18a, 20a in the cooking surface region 14a in the split operating state, a first cooking utensil 18a of the two cooking utensils 18a, 20a is in a power move mode. Heating mode operated in which the first cooking utensil 18a is heated in dependence on a position of the first cooking utensils 18a in the cooking surface area 14a with different heating power densities. In addition, a second cooking utensil 20a of the at least two cooking utensils 18a, 20a is operated in a normal heating mode.

The control unit 16a divides the variable cooking surface area 14 in the split operating state into two sections 24a, 26a having different heating modes. The control unit 16a divides the variable cooking surface area 14a into a first left portion 24a and a second right portion 26a in the split mode. In the split mode, the control unit 16a operates cooking utensils 18a, 20a set up in the first section 24a in a first heating mode. The control unit 16a operates cooking utensils 18a, 20a set up in the split section in the second section 26a in a second heating mode. The first heating mode and the second heating mode are different from each other. In the considered case, the first heating mode and the second heating mode are fixed, in particular stored in the memory unit of the control unit 16a. Alternatively, the first could be Heating mode and the second heating mode be determined by an operator input by means of the control unit, in particular by an operator.

In the split mode, the control unit 16a divides the variable cooking surface area 14a equally into the sections 24a, 26a. The first portion 24a and the second portion 26a have substantially the same proportions of the variable cooking surface area 14a. Alternatively, the controller could non-uniformly divide the variable cooking surface area into sections in the split mode of operation, in particular, at least one of the sections could have a different proportion of the variable cooking surface area than at least one of the at least one section of another further section.

Fig. 4 Fig. 14 shows the case where the control unit 16a operates a first cooking utensil 18a in the first portion 24a in a power-move heating mode and a second cooking utensil 20a in the second portion 26a in a normal heating mode. When changing the position of the second cooking utensil 20a from the second portion 26a into the first portion 24a, the control unit 16a maintains the heating power density with which the control unit 16a operates the second cooking utensil 20a in the second portion 26a.

Considering another case, an operator sets up a first cooking utensil 18b and a second cooking utensil 20b in the variable cooking surface area 14b (see FIG. Fig. 5 ). When setting up the first cooking utensil 18b, the control unit 16b issues an operating request for a selection of a heating mode for heating the first cooking utensil 18b. In addition, when the second cooking utensil 20b is set up, the control unit 16b issues an operating request for a selection of a heating mode for heating the second cooking utensil 18b. For example, an operator selects the power move heating mode for the first cooking utensil 18b. When using at least two cooking utensils 18b, 20b in the variable cooking surface area 14b, the control unit 16b in the mixed operating state operates the first cooking utensil 18b in the power-move heating mode. In the in Fig. 5 As illustrated, an operator selects a power-move heating mode for the second cooking utensil 20b. In the mixing mode, the control unit 16b operates the second cooking utensil 20b in another heating mode different from the normal heating mode. The other heating mode different from the normal heating mode is in the present case as a power-move heating mode educated. The control unit 16b operates in the mixed operating state, the second cooking utensils 20b in the further power move heating mode. The power-move heating mode and the further power-move heating mode are substantially the same. Here, the control unit 16b operates with respect to the y-direction arranged at the same height Gargeschirre 18b, 20b, 22b with the same Heizleistungsdichte. Alternatively, the power-move heating mode and the further power-move heating mode could be designed differently, wherein the control unit could operate especially arranged at the same height cooking utensils with different heating power densities.

Fig. 6 shows a case of three set up Gargeschirren 18b, 20b, 22b, in addition to the zu Fig. 5 configuration, a third cooking utensil 22b is set up. In the mixed operating state, the control unit 16b, when setting up a cooking utensil 18b, 20b, 22b, issues an operating request for a selection of a heating mode for heating the cooking utensil 18b, 20b, 22b. On the basis of an operating input by means of the operating unit 38b, the control unit 16b in the mixed operating state operates the third cooking utensil 22b in a normal heating mode. The first cooking utensil 18b and the third cooking utensil 22b are arranged substantially one behind the other with respect to the y-direction. In a position change of the first cooking utensil 18b, which operates the control unit 16b in the power-move heating mode, a movement of the first cooking utensil 18b oriented parallel to the y-direction is blocked by the third cooking utensil 22b. Utilization of a full possible spectrum of the heating power density requires a movement of the cooking utensil 18b in a direction deviating from the y-direction when the position of the first cooking utensil 18b changes. In the case shown, a change in direction takes place when the first cooking utensil 18b changes its position in order to change a maximum possible heat power density with which the control unit 16b operates the first cooking utensil 18b to a minimum possible heat power density.

In a further configuration, in the blending mode, the control unit 16b operates a first cooking utensil 18b in a power-move heating mode and a second cooking utensil 20b in a normal-heating mode. In the mixed operating state, the control unit 16b determines a current position 28b and / or a set-up position 30b of a cooking utensil 18b, 20b, 22b as a reference position 32b for the power-move heating mode (cf. Fig. 7 to 10 ). In the illustrated configuration, the control unit 16b sets in the Mixed operating state a current position 28b of the second cooking utensils 20b as reference position 32b for the different of the second cooking utensils 20b first cooking utensils 18b fixed (see. Fig. 7 ). The current position 28b of the second cooking utensil 20b corresponds to an erecting position 30b of the second cooking utensil 20b, since a position of the second cooking utensil 20b is unchanged after a first positioning of the second cooking utensil 20b. The control unit 16b assigns a maximum heating power density to the reference position 32b for the second cooking utensil 20b. In the mixed mode, the control unit 16b operates the second cooking utensil 20b with a maximum possible heat density. In a position change of the first cooking utensil 18b in the direction of the reference position 32b, the control unit 16b operates the first cooking utensil 18b with a higher heating power density. When changing the position of the first cooking utensil 18b in a direction away from the reference position 32b, the control unit 16b operates the first cooking utensil 18b with a lower heating power density.

An in Fig. 8 illustrated configuration provides an alternative to that in Fig. 7 shown configuration. In the in Fig. 8 In the configuration shown, the control unit 16b operates in the mixed mode of operation analogous to that in FIG Fig. 7 1, a first cooking utensil 18b in a power-move heating mode and a second cooking utensil 20b in a normal heating mode. A change in position of the second cooking utensil 20b takes place in the normal heating mode from a set-up position 30b to a current position 28b at a substantially constant heating power density. In the current position 28b of the second cooking utensil 20b, the control unit 16b sets the current position 28b of the second cooking utensil 20b as the reference position 32b for the power-move heating mode of the first cooking utensil 18b. The control unit 16b assigns the reference position 32b a minimum heating power density. When changing the position of the first cooking utensil 18b in the direction of the reference position 32b, the control unit 16b operates the first cooking utensil 18b with a lower heating power density. When changing the position of the first cooking utensil 18b in a direction away from the reference position 32b, the control unit 16b operates the first cooking utensil 18b with a higher heating power density.

In another case, the control unit 16b again operates a first cooking utensil 18b in a power-move heating mode and a second cooking utensil 20b in a normal-heating mode (see FIG. Fig. 9 ). The control unit 16b sets a Set up position 30b of the first cooking utensil 18b as the reference position 32b for the power move heating mode of the first cooking utensil 18b. Here, the control unit 16b of the reference position 32b for the first cooking utensil 18b, a maximum Heizleistungsdichte.

In the mixed operating state, the control unit 16b in a further case operates a first cooking utensil 18b and a second cooking utensil 20b in a normal heating mode with different heating power densities (cf. Fig. 10 ). A change in position of the first cooking utensil 18b takes place in the normal heating mode from a set-up position 30b to a current position 28b. In this case, the control unit 16b operates the first cooking utensil 18b in the set-up position 30b and in the current position 28b with a substantially constant heating power density. In the current position 28b of the first cooking utensil 18b, a change in the heating mode with which the control unit 16b operates the first cooking utensil 18b is from the normal heating mode to a power-move heating mode. The control unit 16b sets the current position 28b of the first cooking utensil 18b as the reference position 32b for the power-move heating mode of the first cooking utensil 18b in the mixed operating state.

reference numeral

10

Hob device

12

heating element

14

Variable cooking surface area

16

control unit

18

First cookware

20

Second cookware

22

Third cooking utensils

24

first section

26

second part

28

Actual position

30

Operating position

32

reference position

34

hob

36

Hotplate

38

operating unit

Claims (12)

Hob device, in particular induction hob device, with at least two heating elements (12a-b) which define a variable cooking surface area (14a-b) and with a control unit (16a-b) which, when using at least two cooking utensils (18a-b, 20a) b, 22b) is provided in the variable cooktop area (14a-b) in at least one operating state, a first cooking utensil (18a-b) of the at least two cooking utensils (18a-b, 20a-b, 22b) in a power move Operating heating mode, in which the control unit (16a-b) is provided, the first cooking utensils (18a-b) depending on a position of the first cooking utensils (18a-b) in the variable cooking surface area (14a-b) with different Heizleistungsdichten and to heat a second cooking utensil (20a-b) of the at least two cooking utensils (18a-b, 20a-b, 22b) in a normal heating mode. Hob device according to claim 1, characterized in that the control unit (16b) is provided in at least one further operating state to operate the second cooking utensil (20b) in a further, different from the normal heating mode heating mode. Hob device according to claim 2, characterized in that the control unit (16b) is provided in the at least one further operating state to operate the second cooking utensil (20b) in a power-move heating mode. Hob device according to one of the preceding claims, characterized in that the control unit (16b) is provided for setting up a cooking utensil (18b, 20b, 22b) at least one operating request for a selection of a heating mode to a heating of the cooking utensil (18b, 20b, 22b) spend. Hob device according to one of the preceding claims, characterized in that the control unit (16a) is provided to divide the variable cooking surface area (14a) into at least two sections (24a, 26a) with different heating modes. Hob device according to claim 5, characterized in that the control unit (16a) is arranged to divide the variable cooking surface area (14a) into a first, left portion (24a) and a second, right portion (26a). Hob device according to one of the preceding claims, characterized in that the control unit (16b) is provided for a current position (28b) and / or an installation position (30b) of a cooking utensil (18b, 20b, 22b) as a reference position (32b) for the Set Power Move heating mode. Hob device according to claim 7, characterized in that the control unit (16b) is provided to a Aufstellposition (30b) of a cooking utensil (18b, 20b, 22b) as a reference position (32b) for the power-move heating mode of the cooking utensil (18b, 20b , 22b). Hob device according to claim 7, characterized in that the control unit (16b) is provided to a current position (28b) of a cooking utensil (18b, 20b, 22b) as a reference position (32b) for one of the cooking utensils (18b, 20b, 22b) to specify different cooking utensils. Hob device according to one of claims 7 to 9, characterized in that the control unit (16b) is provided to the reference position (32b) to assign a maximum Heizleistungsdichte. Hob, in particular induction hob, with at least one hob device (10a-b) according to one of the preceding claims. Method for operating a hob device (10a-b), in particular an induction hob device, in particular according to one of claims 1 to 10, with at least two heating elements (12a-b), which define a variable cooktop area (14a-b), wherein when using at least two cooking utensils (18a-b, 20a-b, 22b) in the variable cooking surface area (14a-b) in at least one operating state, a first cooking utensil (18a-b) of the at least two cooking utensils (18a-b, 20a-b, 22b) a power-move heating mode is operated, in which the first cooking utensils (18a-b) depending on a position of the first cooking utensils (18a-b) in the variable cooking surface area (14a-b) is heated with different heating power densities, and a second Garware (20a-b) of the at least two cooking utensils (18a-b, 20a-b, 22b) is operated in a normal heating mode.

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