EP2370734A2 - Hob comprising a visual display unit and method for operating a hob - Google Patents

Hob comprising a visual display unit and method for operating a hob

Info

Publication number
EP2370734A2
EP2370734A2 EP09752345A EP09752345A EP2370734A2 EP 2370734 A2 EP2370734 A2 EP 2370734A2 EP 09752345 A EP09752345 A EP 09752345A EP 09752345 A EP09752345 A EP 09752345A EP 2370734 A2 EP2370734 A2 EP 2370734A2
Authority
EP
European Patent Office
Prior art keywords
heating zone
screen
heating
icon
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09752345A
Other languages
German (de)
French (fr)
Inventor
David Casanova Lacueva
Jose Ramon Garcia Jiménez
Ignacio Garde Aranda
Carlos Vicente Mairal Serrano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2370734A2 publication Critical patent/EP2370734A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate

Definitions

  • Hob with a screen and method of operating a hob
  • the invention relates to a hob with a screen according to the preamble of claim 1 and to a method for operating such a hob according to the preamble of claim 6.
  • So-called matrix cooktops with a large number of heating elements are known from the prior art, which can be flexibly combined to form different heating zones.
  • the heating zones are adapted to the size and / or shape of a cookware element that can be freely positioned by the operator on the hob. Because of the freely selectable by the operator tray level, which can also be changed by moving a cooking pot, a fixed assignment between Heizzo- nen and switching elements for adjusting a heating power of this heating zone is very difficult or impossible.
  • the use of touch screens to operate these heating zones is relatively complicated, since the operator first has to select a heating zone whose settings are to be changed, and then has to change the settings. Touch screens are also very expensive and difficult to operate, especially with dirty fingers.
  • the invention is in particular the object of making the operation of a generic hob simple and intuitive, without having to use a touch screen.
  • the invention is particularly based on a hob with a plurality of heating elements, which are preferably arranged in a grid with 4 x 4, 6 x 6 or 8 x 8 or more points.
  • the otherwise uniform grid may be interrupted in an area of a user interface.
  • the cooktop further comprises a detection arrangement for detecting a position and / or size of a cookware element, a control unit which forms a heating zone adapted to the position and / or size of the cookware element and assigns one or more heating elements to the heating zone.
  • a user interface comprises a screen with a plurality of switching elements arranged next to the screen.
  • the control unit includes a driver for driving the screen and is programmed to generate in at least one operating mode a screen display containing at least one icon of a heating zone.
  • the pictogram illustrates a position and / or size of the heating zone.
  • the screen display contains an icon associated with the icon of the heating zone, which assigns the heating zone to one of the switching elements.
  • the symbol is an arrow pointing to the switching element and / or to the icon.
  • the arrow can have one or two points and have many conceivable shapes. Furthermore, it is conceivable to represent the symbol as a simple line or the like.
  • the symbol in a further embodiment of the invention is proposed to form the symbol as a circle segment, which is arranged concentrically to the icon.
  • the circle segment represents an angular range in which the switching element is arranged with respect to a center of the screen. If, for example, the circle segment represents an upper left section of a circle or ring, it can be intuitively detected that the upper left switching element is assigned to the relevant heating zone.
  • the control unit assigns a switching element to each heating zone and, for this purpose, calculates the distances from the pictograms of the heating zones to the switching elements. The calculated distances are taken into account during the assignment.
  • the control unit may also include specially adapted hardware with storage space for storing the various distances.
  • the control unit calculates a distance between the free icon and the free switching element for each possible pairing between a free switching element and a free icon.
  • the pairings are arranged with increasing or decreasing distance.
  • the control unit selects the pairing with the shortest distance and assigns the switching element from the selected pairing to the icon of the selected pairing.
  • the selected switching element and the selected pictogram or heating zone are then no longer "free" in the sense of this method, and all pairings comprising one of these elements are deleted from the list of pairings with the remaining free switching elements and free icons repeated until all the icons are assigned to a switching element.
  • Another aspect of the invention relates to a method of operating a cooktop having a plurality of heating elements.
  • the method includes detecting a position and / or size of a cookware element, forming at least one heating zone adapted to the cookware element depending on the detected size and / or position of the cookware element, and associating one or more heating elements with the heating zone.
  • a screen image is generated on the screen of a user interface.
  • the user interface comprises a plurality of switching elements arranged next to the screen.
  • the screen display comprises at least one icon of a heating zone, which illustrates a position and / or size of the heating zone on the hob.
  • the screen display contains the symbol associated with the icon of the heating zone, which assigns the heating zone one of the switching elements.
  • FIG. 1 shows a hob with a plurality of heating elements, a control unit and a user interface
  • FIG. 2 shows the user interface of FIG. 1 in a first embodiment of the invention
  • Fig. 3 shows the user interface according to an alternative embodiment of the invention.
  • Fig. 4 shows the user interface of the hob according to a further alternative embodiment of the invention.
  • Fig. 1 shows a hob with a plurality of heating elements 10, a control unit 16 and a user interface 20.
  • the control unit 16 operates the user interface and operates the heating elements 10, which are formed as inductors.
  • the control unit 16 uses the heating elements 10 as inductive sensors for detecting cooking utensils 14 and summarizes those heating elements 10, which are at least partially covered by a bottom of the cookware element 14, to a freely configurable heating zone 18, in size and position adapted to the size and position of the cookware element 14.
  • the control unit 16 therefore forms, together with the heating elements 10, a detection arrangement 12 for detecting a cooking element 14.
  • the user interface comprises a screen 22 and a plurality of switching elements 28a-28f arranged next to the screen, as well as further switching elements 30 at a front edge of the hob are arranged. Both the screen 22 and the switching elements are covered by a cover plate 32.
  • the switching elements 28a-28f are capacitive switching elements that are directly under the Ab- cover plate 32 arranged sensors.
  • the resolution of the screen is at least 160x120 pixels.
  • FIG. 2 shows an electronic board of the user interface 20 without the cover plate 32. On the electronic board are both the screen 22 and the sensors the switching elements 28a - mounted 28f.
  • the screen display comprises one icon per heating zone 18 or per heated cookware element 14.
  • five cooking pots are placed on the hob, so that the control unit 16 forms five heating zones 18 which are shown as pictograms 24 in the form of circles are shown on the screen 22.
  • Each icon 24 is associated with a symbol 26, which is designed as an arrowhead, which points from the icon 24 to one of the switching elements 28a - 28f, thus allowing an optical association between the icon 24 and the relevant switching element 28a.
  • the icon 24, which is assigned via the symbol 26 to this switching element 28a is optically highlighted (for example by a full-surface representation of the circle).
  • a heating power of the heating zone 18, which is symbolized by the selected icon 24, can be increased via an incrementing key 34 or reduced via a decrementing key 36 of the user interface 20.
  • FIG. 3 shows an alternative embodiment of the invention, which differs in the shape of the symbols 26 from the embodiment according to FIG. 2.
  • the symbols 26 are arrows that point from the switching elements 28a-28f to the respective icon 24.
  • the symbols 26 are circle segments which are each arranged concentrically with the icon 24 to which the symbol 26 is assigned.
  • the circle segment represents an angular range in which the switching element is arranged with respect to a center of the screen 22.
  • the symbol 26 forms the upper edge of a circular ring so that the user can intuitively detect that the upper left switching element 28a associated with the relevant icon 24 and the respective heating zone 18.
  • a number may be indicated on the symbol 26, which corresponds to a number 38 which is printed on the cover plate 32 as a 7-segment display or as an imprint in the area of the switching element 28a.
  • the control unit 16 To associate the heating zones 18 and icons 24, respectively, with the various switching elements 28a-28f, the control unit 16 forms a list of all possible pairings of free switching elements 28a-28f and pictograms 24. If M switching elements and N icons are available, M x N results pairings. For each of these pairings, the control unit 16 calculates a distance between an edge of the icon 24 and the switching element 28a-28f of the pairing. For this purpose, the control unit 16 accesses a memory in which the positions of the switching elements 28a-28f are stored as a two-dimensional vector relative to the screen plane.
  • the distance between the switching elements 28a-28f and the edge of the icon 24 results from the subtraction of a circle radius of the icon 24 from the distance of the centers of the icon Switching element 28a - 28f and the
  • Pictogram 24 The distances thus determined are ordered by the control unit 16 in a list of size and the pairing with the smallest distance is selected.
  • the association between the switching element 28a-28f and the icon 24 is determined. Accordingly, in the embodiment shown in FIGS. 2-4, the assignment of the upper left icon 24 to the upper left switch element 28a would be determined first. Subsequently, all pairings containing either the selected switching element 28a or the selected icon 24 are deleted from the list and again the pairing with the shortest distance from the remaining pairings is selected. This selection process is repeated until all the icons 24 are associated with one of the switching elements 28a-28f.

Abstract

The invention relates to a hob comprising a plurality of heating elements (10), a detector arrangement (12) for detecting the position and/or size of a cooking utensil element (14), and a control unit (16) which is designed to define a heating zone (18) adapted to the cooking utensil element (14) depending on the detected size and/or position of the cooking utensil element (14) and to associate one or more heating elements (10) with the heating zone (18). A user interface (20) comprises a visual display unit (22) and a plurality of control elements (28a - 28f) juxtaposed to the visual display unit (22). The control unit (16) generates a visual display which contains at least one pictogram (24) of a heating zone (18) which pictogram illustrates a position and/or size of the heating zone (18). In order to allow the control elements (28a - 28f) and the heating zones (18) to be clearly associated with each other even when the heating zones (18) are variable, the visual display contains a symbol (26) which is associated with the pictogram (24) of the heating zone (18) and which associates the heating zone (18) with one of the control elements (28a - 28f).

Description

Kochfeld mit einem Bildschirm und Verfahren zum Betreiben eines Kochfelds Hob with a screen and method of operating a hob
Die Erfindung geht aus von einem Kochfeld mit einem Bildschirm nach dem Oberbegriff des Anspruchs 1 und von einem Verfahren zum Betreiben eines solchen Kochfelds nach dem Oberbegriff des Anspruchs 6.The invention relates to a hob with a screen according to the preamble of claim 1 and to a method for operating such a hob according to the preamble of claim 6.
Aus dem Stand der Technik sind so genannte Matrix-Kochfelder mit einer Vielzahl von Heizelementen bekannt, die flexibel zu verschiedenartigen Heizzonen zusammengefasst werden können. Die Heizzonen sind an die Größe und/oder Form eines Kochgeschirrelements angepasst, welches vom Bediener frei auf dem Kochfeld positioniert werden kann. Wegen des vom Bediener frei wählbaren Muldenspiegels, der durch das Verschieben eines Kochtopfs auch verändert werden kann, ist eine feste Zuordnung zwischen Heizzo- nen und Schaltelementen zum Einstellen einer Heizleistung dieser Heizzone sehr schwierig oder unmöglich. Die Verwendung von Touch-Screens zum Bedienen dieser Heizzonen ist vergleichsweise kompliziert, da der Bediener erst eine Heizzone auswählen muss, deren Einstellungen verändert werden sollen, und anschließend die Einstellungen verändern muss. Touch-Screens sind zudem sehr teuer und insbesondere mit verschmutzten Fingern schwierig zu bedienen.So-called matrix cooktops with a large number of heating elements are known from the prior art, which can be flexibly combined to form different heating zones. The heating zones are adapted to the size and / or shape of a cookware element that can be freely positioned by the operator on the hob. Because of the freely selectable by the operator tray level, which can also be changed by moving a cooking pot, a fixed assignment between Heizzo- nen and switching elements for adjusting a heating power of this heating zone is very difficult or impossible. The use of touch screens to operate these heating zones is relatively complicated, since the operator first has to select a heating zone whose settings are to be changed, and then has to change the settings. Touch screens are also very expensive and difficult to operate, especially with dirty fingers.
Aus der DE 10 2007 008 896 A1 ist ferner die Verwendung eines Touchscreens in einer Benutzerschnittstelle eines Kochfelds bekannt. Dieses Kochfeld hat einen festen Muldenspiegel und zur Auswahl der Heizzone sind separate Schaltelemente vorgesehen, die entfernt von dem Tochscreen angeordnet sind.From DE 10 2007 008 896 A1, the use of a touchscreen in a user interface of a cooktop is also known. This hob has a fixed bowl mirror and to select the heating zone separate switching elements are provided, which are located away from the touchscreen.
Der Erfindung liegt insbesondere die Aufgabe zugrunde, die Bedienung eines gattungsgemäßen Kochfelds einfach und intuitiv zu gestalten, ohne einen Touch-Screen verwenden zu müssen.The invention is in particular the object of making the operation of a generic hob simple and intuitive, without having to use a touch screen.
Die Aufgabe wird durch die Merkmale der unabhängigen Patentansprüche gelöst. Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen. Die Erfindung geht insbesondere aus von einem Kochfeld mit einer Vielzahl von Heizelementen, die vorzugsweise in einem Raster mit 4 x 4, 6 x 6 oder 8 x 8 oder mehr Punkten angeordnet sind. Das ansonsten gleichförmige Raster kann in einem Bereich einer Benut- zerschnittstelle unterbrochen sein. Das Kochfeld umfasst ferner eine Detektionsanord- nung zum Detektieren einer Position und/oder Größe eines Kochgeschirrelements, eine Steuereinheit, die eine an die Position und/oder Größe des Kochgeschirrelements an- passte Heizzone bildet und der Heizzone eines oder mehrere Heizelemente zuordnet. Eine Benutzerschnittstelle umfasst einen Bildschirm mit mehreren neben dem Bildschirm angeordneten Schaltelementen. Die Steuereinheit umfasst einen Treiber zum Ansteuern des Bildschirms und ist so programmiert, dass sie in wenigstens einem Betriebsmodus eine Bildschirmdarstellung generiert, die wenigstens ein Piktogramm einer Heizzone enthält. Das Piktogramm illustriert eine Position und/oder Größe der Heizzone.The object is solved by the features of the independent claims. Further advantageous embodiments and modifications of the invention will become apparent from the dependent claims. The invention is particularly based on a hob with a plurality of heating elements, which are preferably arranged in a grid with 4 x 4, 6 x 6 or 8 x 8 or more points. The otherwise uniform grid may be interrupted in an area of a user interface. The cooktop further comprises a detection arrangement for detecting a position and / or size of a cookware element, a control unit which forms a heating zone adapted to the position and / or size of the cookware element and assigns one or more heating elements to the heating zone. A user interface comprises a screen with a plurality of switching elements arranged next to the screen. The control unit includes a driver for driving the screen and is programmed to generate in at least one operating mode a screen display containing at least one icon of a heating zone. The pictogram illustrates a position and / or size of the heating zone.
Um eine Zuordnung der Heizzone zu einem der Schaltelemente klar und einfach zu gestalten, wird vorgeschlagen, dass die Bildschirmdarstellung ein dem Piktogramm der Heizzone zugeordnetes Symbol enthält, welches die Heizzone einem der Schaltelemente zuordnet. Dadurch kann intuitiv und einfach erfasst werden, welches Schaltelement zum Betätigen bzw. Einstellen welcher Heizzone benutzt werden kann und Verwechslungen können vermieden werden.In order to make an allocation of the heating zone to one of the switching elements clear and simple, it is proposed that the screen display contains an icon associated with the icon of the heating zone, which assigns the heating zone to one of the switching elements. As a result, it can be intuitively and easily detected which switching element can be used to actuate or set which heating zone and confusion can be avoided.
In einer besonders vorteilhaften Ausgestaltung der Erfindung ist das Symbol ein zu dem Schaltelement und/oder zu dem Piktogramm weisender Pfeil. Der Pfeil kann eine oder zwei Spitzen haben und viele denkbare Formen haben. Ferner ist es denkbar, das Sym- bol als einfache Linie oder dergleichen darzustellen.In a particularly advantageous embodiment of the invention, the symbol is an arrow pointing to the switching element and / or to the icon. The arrow can have one or two points and have many conceivable shapes. Furthermore, it is conceivable to represent the symbol as a simple line or the like.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, das Symbol als Kreissegment auszubilden, welches konzentrisch zu dem Piktogramm angeordnet ist. Das Kreissegment stellt einen Winkelbereich dar, in dem das Schaltelement bezogen auf einen Mittelpunkt des Bildschirms angeordnet ist. Wenn das Kreissegment beispielsweise einen oberen linken Ausschnitt eines Kreises bzw. Rings darstellt, kann intuitiv erfasst werden, dass das obere linke Schaltelement der betreffenden Heizzone zugeordnet ist. Ferner wird vorgeschlagen, dass die Steuereinheit jeder Heizzone ein Schaltelement zuordnet und dazu die Abstände von den Piktogrammen der Heizzonen zu den Schaltelementen berechnet. Die so berechneten Abstände werden bei der Zuordnung berücksichtigt. Die Steuereinheit kann dazu neben einer geeigneten Software auch eine speziell angepasste Hardware mit Speicherplatz zum Speichern der verschiedenen Abstände umfassen.In a further embodiment of the invention is proposed to form the symbol as a circle segment, which is arranged concentrically to the icon. The circle segment represents an angular range in which the switching element is arranged with respect to a center of the screen. If, for example, the circle segment represents an upper left section of a circle or ring, it can be intuitively detected that the upper left switching element is assigned to the relevant heating zone. It is also proposed that the control unit assigns a switching element to each heating zone and, for this purpose, calculates the distances from the pictograms of the heating zones to the switching elements. The calculated distances are taken into account during the assignment. In addition to suitable software, the control unit may also include specially adapted hardware with storage space for storing the various distances.
In einer besonders vorteilhaften Ausgestaltung der Erfindung wird vorgeschlagen, dass die Steuereinheit zu jeder möglichen Paarung zwischen einem freien Schaltelement und einem freien Piktogramm einen Abstand zwischen dem freien Piktogramm und dem freien Schaltelement berechnet. Die Paarungen werden mit steigendem oder fallendem Abstand geordnet. Die Steuereinheit wählt die Paarung mit dem geringsten Abstand aus und ordnet das Schaltelement aus der ausgewählten Paarung dem Piktogramm der ausgewählten Paarung zu. Das ausgewählte Schaltelement und das ausgewählte Piktogramm bzw. die ausgewählte Heizzone sind dann nicht mehr im Sinne dieses Verfahrens „frei" und alle Paarungen, die eines dieser Elemente umfassen, werden aus der Liste von Paarungen gestrichen. Anschließend wird das Verfahren mit den verbleibenden Paarungen bzw. mit den verbleibenden freien Schaltelementen und freien Piktogrammen wiederholt, bis alle Piktogramme einem Schaltelement zugeordnet sind.In a particularly advantageous embodiment of the invention, it is proposed that the control unit calculates a distance between the free icon and the free switching element for each possible pairing between a free switching element and a free icon. The pairings are arranged with increasing or decreasing distance. The control unit selects the pairing with the shortest distance and assigns the switching element from the selected pairing to the icon of the selected pairing. The selected switching element and the selected pictogram or heating zone are then no longer "free" in the sense of this method, and all pairings comprising one of these elements are deleted from the list of pairings with the remaining free switching elements and free icons repeated until all the icons are assigned to a switching element.
Ein weiterer Aspekt der Erfindung betrifft ein Verfahren zum Betreiben eines Kochfelds mit einer Vielzahl von Heizelementen. Das Verfahren umfasst das Detektieren einer Position und/oder Größe eines Kochgeschirrelements, das Bilden wenigstens einer an das Kochgeschirrelement angepassten Heizzone abhängig von der detektierten Größe und/oder Position des Kochgeschirrelements und das Zuordnen eines oder mehrerer Heizelemente zu der Heizzone. Eine Bildschirmdarstellung wird auf dem Bildschirm einer Benutzerschnittstelle generiert. Die Benutzerschnittstelle umfasst mehrere neben dem Bildschirm angeordnete Schaltelemente. Die Bildschirmdarstellung umfasst wenigstens ein Piktogramm einer Heizzone, welches eine Position und/oder Größe der Heizzone auf dem Kochfeld illustriert.Another aspect of the invention relates to a method of operating a cooktop having a plurality of heating elements. The method includes detecting a position and / or size of a cookware element, forming at least one heating zone adapted to the cookware element depending on the detected size and / or position of the cookware element, and associating one or more heating elements with the heating zone. A screen image is generated on the screen of a user interface. The user interface comprises a plurality of switching elements arranged next to the screen. The screen display comprises at least one icon of a heating zone, which illustrates a position and / or size of the heating zone on the hob.
Um eine Zuordnung zwischen der Heizzone bzw. dem Piktogramm und dem Schaltelement intuitiv erfassbar zu machen, wird vorgeschlagen, dass die Bildschirmdarstellung ein dem Piktogramm der Heizzone zugeordnetes Symbol enthält, welches die Heizzone einem der Schaltelemente zuordnet.In order to make an association between the heating zone or the pictogram and the switching element intuitively detectable, it is proposed that the screen display contains the symbol associated with the icon of the heating zone, which assigns the heating zone one of the switching elements.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeich- nung sind Ausführungsbeispiele der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawing, 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.
Es zeigen:Show it:
Fig. 1 ein Kochfeld mit einer Vielzahl von Heizelementen, einer Steuereinheit und einer Benutzerschnittstelle,1 shows a hob with a plurality of heating elements, a control unit and a user interface,
Fig. 2 die Benutzerschnittstelle aus Fig. 1 in einer ersten Ausgestaltung der Erfindung,2 shows the user interface of FIG. 1 in a first embodiment of the invention, FIG.
Fig. 3 die Benutzerschnittstelle nach einer alternativen Ausgestaltung der Erfindung undFig. 3 shows the user interface according to an alternative embodiment of the invention and
Fig. 4 die Benutzerschnittstelle des Kochfelds nach einer weiteren alternativen Ausgestaltung der Erfindung.Fig. 4 shows the user interface of the hob according to a further alternative embodiment of the invention.
Fig. 1 zeigt ein Kochfeld mit einer Vielzahl von Heizelementen 10, einer Steuereinheit 16 und einer Benutzerschnittstelle 20. Die Steuereinheit 16 betreibt die Benutzerschnittstelle und betätigt die Heizelemente 10, die als Induktoren ausgebildet sind. Dabei benutzt die Steuereinheit 16 die Heizelemente 10 als induktive Sensoren zum Detektieren von Koch- geschirrelementen 14 und fasst diejenigen Heizelemente 10, die zumindest teilweise von einem Boden des Kochgeschirrelements 14 bedeckt werden, zu einer frei konfigurierbaren Heizzone 18 zusammen, die in ihrer Größe und Position an die Größe und Position des Kochgeschirrelements 14 angepasst ist. Die Steuereinheit 16 bildet daher zusammen mit den Heizelementen 10 eine Detektionsanordnung 12 zum Detektieren eines Kochge- schirrelements 14. Die Benutzerschnittstelle umfasst einen Bildschirm 22 und mehrere neben dem Bildschirm angeordnete Schaltelemente 28a - 28f, sowie weitere Schaltelemente 30, die an einem vorderen Rand des Kochfelds angeordnet sind. Sowohl der Bildschirm 22 als auch die Schaltelemente sind von einer Abdeckplatte 32 bedeckt. Die Schaltelemente 28a - 28f sind kapazitive Schaltelemente, die unmittelbar unter der Ab- deckplatte 32 angeordnete Sensoren umfassen. Die Auflösung des Bildschirms beträgt mindestens 160x120 Pixel.Fig. 1 shows a hob with a plurality of heating elements 10, a control unit 16 and a user interface 20. The control unit 16 operates the user interface and operates the heating elements 10, which are formed as inductors. In this case, the control unit 16 uses the heating elements 10 as inductive sensors for detecting cooking utensils 14 and summarizes those heating elements 10, which are at least partially covered by a bottom of the cookware element 14, to a freely configurable heating zone 18, in size and position adapted to the size and position of the cookware element 14. The control unit 16 therefore forms, together with the heating elements 10, a detection arrangement 12 for detecting a cooking element 14. The user interface comprises a screen 22 and a plurality of switching elements 28a-28f arranged next to the screen, as well as further switching elements 30 at a front edge of the hob are arranged. Both the screen 22 and the switching elements are covered by a cover plate 32. The switching elements 28a-28f are capacitive switching elements that are directly under the Ab- cover plate 32 arranged sensors. The resolution of the screen is at least 160x120 pixels.
Während des Betriebs des Kochfelds generiert die Steuereinheit 16 auf dem BiId- schirm 22 eine Bildschirmdarstellung der in Fig. 2 dargestellten Art. Figur 2 zeigt eine Elektronikplatine der Benutzerschnittstelle 20 ohne die Abdeckplatte 32. Auf der Elektronikplatine sind sowohl der Bildschirm 22 als auch die Sensoren der Schaltelemente 28a - 28f montiert.During operation of the hob, the control unit 16 on the screen 22 generates a screen display of the type shown in FIG. 2. FIG. 2 shows an electronic board of the user interface 20 without the cover plate 32. On the electronic board are both the screen 22 and the sensors the switching elements 28a - mounted 28f.
Die Bildschirmdarstellung umfasst ein Piktogramm pro Heizzone 18 bzw. pro beheiztes Kochgeschirrelement 14. In der in Fig. 2 dargestellten Konfiguration sind fünf Kochtöpfe auf das Kochfeld aufgestellt, so dass die Steuereinheit 16 fünf Heizzonen 18 bildet, die als Piktogramme 24 in der Form von Kreisen auf dem Bildschirm 22 dargestellt sind. Jedem Piktogramm 24 ist ein Symbol 26 zugeordnet, das als Pfeilspitze ausgebildet ist, die von dem Piktogramm 24 zu einem der Schaltelemente 28a - 28f weist und so eine optische Zuordnung zwischen dem Piktogramm 24 und dem betreffenden Schaltelement 28a ermöglicht. Wenn der Benutzer eines der Schaltelemente 28a betätigt, wird das Piktogramm 24, das über das Symbol 26 diesem Schaltelement 28a zugeordnet ist, optisch hervorgehoben (beispielsweise durch eine vollflächige Darstellung des Kreises). Eine Heizleistung der Heizzone 18, die von dem ausgewählten Piktogramm 24 symbolisiert wird, kann über eine Inkrementierungstaste 34 erhöht oder über eine Dekrementierungstaste 36 der Benutzerschnittstelle 20 verringert werden.The screen display comprises one icon per heating zone 18 or per heated cookware element 14. In the configuration shown in Figure 2, five cooking pots are placed on the hob, so that the control unit 16 forms five heating zones 18 which are shown as pictograms 24 in the form of circles are shown on the screen 22. Each icon 24 is associated with a symbol 26, which is designed as an arrowhead, which points from the icon 24 to one of the switching elements 28a - 28f, thus allowing an optical association between the icon 24 and the relevant switching element 28a. When the user actuates one of the switching elements 28a, the icon 24, which is assigned via the symbol 26 to this switching element 28a, is optically highlighted (for example by a full-surface representation of the circle). A heating power of the heating zone 18, which is symbolized by the selected icon 24, can be increased via an incrementing key 34 or reduced via a decrementing key 36 of the user interface 20.
Fig. 3 zeigt eine alternative Ausgestaltung der Erfindung, die sich in der Gestalt der Sym- bole 26 von der Ausgestaltung gemäß Fig. 2 unterscheidet. Im Gegensatz zu Fig. 2 sind die Symbole 26 Pfeile, die von den Schaltelementen 28a - 28f zu dem jeweiligen Piktogramm 24 weisen.FIG. 3 shows an alternative embodiment of the invention, which differs in the shape of the symbols 26 from the embodiment according to FIG. 2. In contrast to FIG. 2, the symbols 26 are arrows that point from the switching elements 28a-28f to the respective icon 24.
Fig. 4 zeigt eine weitere alternative Ausgestaltung der Erfindung, in welcher die Symbo- Ie 26 Kreissegmente sind, die jeweils konzentrisch zu dem Piktogramm 24 angeordnet sind, dem das Symbol 26 zugeordnet ist. Aus Gründen der Einfachheit ist in Fig. 4 nur eines der Symbole 26 dargestellt. Das Kreissegment stellt einen Winkelbereich dar, in dem das Schaltelement bezogen auf einen Mittelpunkt des Bildschirms 22 angeordnet ist. In dem in Fig. 4 dargestellten Ausführungsbeispiel bildet das Symbol 26 den oberen Nn- ken Teil eines Kreisrings, so dass vom Benutzer intuitiv erfasst werden kann, dass das obere linke Schaltelement 28a dem betreffenden Piktogramm 24 bzw. der betreffenden Heizzone 18 zugeordnet ist.4 shows a further alternative embodiment of the invention in which the symbols 26 are circle segments which are each arranged concentrically with the icon 24 to which the symbol 26 is assigned. For the sake of simplicity, only one of the symbols 26 is shown in FIG. The circle segment represents an angular range in which the switching element is arranged with respect to a center of the screen 22. In the exemplary embodiment illustrated in FIG. 4, the symbol 26 forms the upper edge of a circular ring so that the user can intuitively detect that the upper left switching element 28a associated with the relevant icon 24 and the respective heating zone 18.
Ferner kann in der in Fig. 4 dargestellten Weise auf dem Symbol 26 eine Ziffer angezeigt werden, die einer Ziffer 38 entspricht, die als 7-Segment-Anzeige oder als Aufdruck im Bereich des Schaltelements 28a auf die Abdeckplatte 32 aufgedruckt ist.Furthermore, in the manner shown in FIG. 4, a number may be indicated on the symbol 26, which corresponds to a number 38 which is printed on the cover plate 32 as a 7-segment display or as an imprint in the area of the switching element 28a.
Um die Heizzonen 18 bzw. Piktogramme 24 den verschiedenen Schaltelementen 28a - 28f zuzuordnen, bildet die Steuereinheit 16 eine Liste von allen möglichen Paarungen von freien Schaltelementen 28a - 28f und Piktogrammen 24. Wenn M Schaltelemente und N Piktogramme verfügbar sind, ergeben sich M x N Paarungen. Zu jeder dieser Paarungen berechnet die Steuereinheit 16 einen Abstand zwischen einem Rand des Piktogramms 24 und dem Schaltelement 28a - 28f der Paarung. Dazu greift die Steuereinheit 16 auf einen Speicher zurück, in welchem die Positionen der Schaltelemente 28a - 28f als zweidimen- sionaler Vektor bezogen auf die Bildschirmebene gespeichert sind.To associate the heating zones 18 and icons 24, respectively, with the various switching elements 28a-28f, the control unit 16 forms a list of all possible pairings of free switching elements 28a-28f and pictograms 24. If M switching elements and N icons are available, M x N results pairings. For each of these pairings, the control unit 16 calculates a distance between an edge of the icon 24 and the switching element 28a-28f of the pairing. For this purpose, the control unit 16 accesses a memory in which the positions of the switching elements 28a-28f are stored as a two-dimensional vector relative to the screen plane.
In dem in Fig. 2 und 3 dargestellten Ausführungsbeispiel, in welchem die Piktogramme 24 Kreise sind, ergibt sich der Abstand zwischen dem Schaltelement 28a - 28f und dem Rand des Piktogramms 24 durch die Subtraktion eines Kreisradius des Piktogramms 24 von dem Abstand der Mittelpunkte des betreffenden Schaltelements 28a - 28f und desIn the embodiment illustrated in FIGS. 2 and 3, in which the icons 24 are circles, the distance between the switching elements 28a-28f and the edge of the icon 24 results from the subtraction of a circle radius of the icon 24 from the distance of the centers of the icon Switching element 28a - 28f and the
Piktogramms 24. Die derart ermittelten Abstände werden von der Steuereinheit 16 in einer Liste der Größe nach geordnet und diejenige Paarung mit dem kleinsten Abstand wird ausgewählt.Pictogram 24. The distances thus determined are ordered by the control unit 16 in a list of size and the pairing with the smallest distance is selected.
Die Zuordnung zwischen dem Schaltelement 28a - 28f und dem Piktogramm 24 wird festgelegt. In dem in Figuren 2 - 4 dargestellten Ausführungsbeispiel würde demnach die Zuordnung des oberen linken Piktogramms 24 zu dem oberen linken Schaltelement 28a als Erstes festgelegt. Anschließend werden alle Paarungen, die entweder das ausgewählte Schaltelement 28a oder das ausgewählte Piktogramm 24 enthalten, aus der Liste gestrichen und wieder wird diejenige Paarung mit dem geringsten Abstand aus den verbleibenden Paarungen ausgewählt. Dieses Auswahlverfahren wird wiederholt, bis alle Piktogramme 24 einem der Schaltelemente 28a - 28f zugeordnet sind. BezugszeichenThe association between the switching element 28a-28f and the icon 24 is determined. Accordingly, in the embodiment shown in FIGS. 2-4, the assignment of the upper left icon 24 to the upper left switch element 28a would be determined first. Subsequently, all pairings containing either the selected switching element 28a or the selected icon 24 are deleted from the list and again the pairing with the shortest distance from the remaining pairings is selected. This selection process is repeated until all the icons 24 are associated with one of the switching elements 28a-28f. reference numeral
10 Heizelement10 heating element
12 Detektionsanordnung12 detection arrangement
14 Kochgeschirrelement14 cookware element
16 Steuereinheit16 control unit
18 Heizzone18 heating zone
20 Benutzerschnittstelle20 user interface
22 Bildschirm22 screen
24 Piktogramm24 pictogram
26 Symbol26 icon
28a— 28f Schaltelement28a-28f switching element
30 Schaltelement30 switching element
32 Abdeckplatte32 cover plate
34 Inkrementierungstaste34 increment key
36 Dekrementierungstaste36 decrement button
38 Ziffer 38 digit

Claims

Patentansprüche claims
1. Kochfeld mit: - einer Vielzahl von Heizelementen (10), einer Detektionsanordnung (12) zum Detektieren einer Position und/oder Größe eines Kochgeschirrelements (14), einer Steuereinheit (16), die dazu ausgelegt ist, abhängig von der detektierten Größe und/oder Position des Kochgeschirrelements (14) eine an das Kochge- schirrelement (14) angepasste Heizzone (18) zu bilden und der Heizzone (18) eines oder mehrere Heizelemente (10) zuzuordnen, und einer Benutzerschnittstelle (20) mit einem Bildschirm (22) und mehreren neben dem Bildschirm (22) angeordneten Schaltelementen (28a - 28f), wobei die Steuereinheit (16) dazu ausgelegt ist, in wenigstens einem Betriebsmodus auf dem Bildschirm (22) eine Bildschirmdarstellung zu generieren, die wenigstens ein Piktogramm (24) einer Heizzone (18) enthält, welches eine Position und/oder Größe der Heizzone (18) illustriert, dadurch gekennzeichnet, dass die Bildschirmdarstellung ein dem Piktogramm (24) der Heizzone (18) zugeordnetes Symbol (26) enthält, welches die Heizzone (18) einem der Schaltelemente (28a - 28f) zuordnet.A cooktop comprising: - a plurality of heating elements (10), a detection assembly (12) for detecting a position and / or size of a cookware element (14), a control unit (16) adapted thereto, depending on the detected size and / or position of the cookware element (14) to form a heating zone (18) adapted to the cooking utensil element (14) and to associate the heating zone (18) with one or more heating elements (10), and a user interface (20) having a screen (22 ), and a plurality of adjacent to the screen (22) arranged switching elements (28a - 28f), wherein the control unit (16) is adapted to generate in at least one operating mode on the screen (22) a screen display, the at least one icon (24) of a Heating zone (18), which illustrates a position and / or size of the heating zone (18), characterized in that the screen representation of the pictogram (24) of the heating zone (18) associated symbol (26 ), which assigns the heating zone (18) to one of the switching elements (28a - 28f).
2. Kochfeld nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Symbol (26) ein zu dem Schaltelement (28a - 28f) und/oder zu dem Piktogramm (24) weisender Pfeil ist.2. Hob according to one of the preceding claims, characterized in that the symbol (26) is a to the switching element (28 a - 28 f) and / or to the icon (24) pointing arrow.
3. Kochfeld nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Symbol (26) ein zu dem Piktogramm (24) konzentrisches Kreissegment ist, welches einen Winkelbereich darstellt, in dem das Schaltelement (28a - 28f) bezogen auf einen Mittelpunkt des Bildschirms (22) angeordnet ist.3. Hob according to one of the preceding claims, characterized in that the symbol (26) is a to the icon (24) concentric circle segment, which represents an angular range in which the switching element (28 a - 28 f) relative to a center of the screen ( 22) is arranged.
4. Kochfeld nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Steuereinheit (16) dazu ausgelegt ist, jeder Heizzone (18) ein Schaltelement (28a - 28f) zuzuordnen und dazu die Abstände von den Piktogrammen (24) der Heizzonen (18) zu den Schaltelementen (28a - 28f) zu berechnen und bei der Zuordnung zu berücksichtigen.4. Hob according to one of the preceding claims, characterized in that the control unit (16) is adapted to each heating zone (18) assign a switching element (28a - 28f) and to the distances from the pictograms (24) of the heating zones (18) to calculate the switching elements (28a - 28f) and in the To consider assignment.
5. Kochfeld nach Anspruch 4, dadurch gekennzeichnet, dass die Steuereinheit (16) zu jeder möglichen Paarung zwischen einem freien Schaltelement (28a - 28f) und einem freien Piktogramm (24) einen Abstand zwischen dem freien Piktogramm (24) und dem freien Schaltelement (28a - 28f) berechnet, die Paarung mit dem geringsten Abstand auswählt und das Schaltelement (28a - 28f) der ausgewählten Paarung dem Piktogramm (24) der ausgewählten Paarung zuordnet.5. Hob according to claim 4, characterized in that the control unit (16) for each possible pairing between a free switching element (28 a - 28 f) and a free icon (24) a distance between the free icon (24) and the free switching element ( 28a-28f), selects the pairing with the shortest distance, and associates the switching element (28a-28f) of the selected pairing with the pictogram (24) of the selected pairing.
6. Verfahren zum Betreiben eines Kochfelds mit einer Vielzahl von Heizelementen (10), umfassend die Schritte:A method of operating a cooktop having a plurality of heating elements (10), comprising the steps of:
Detektieren einer Position und/oder Größe eines Kochgeschirrelements (14), Bilden wenigstens einer an das Kochgeschirrelement (14) angepassten Heizzone (18) abhängig von der detektierten Größe und/oder Position des Koch- geschirrelements (14),Detecting a position and / or size of a cookware element (14), forming at least one heating zone (18) adapted to the cookware element (14), depending on the detected size and / or position of the cooking element (14),
Zuordnen eines oder mehrerer Heizelemente (10) zu der Heizzone (18), und Generieren einer Bildschirmdarstellung auf einem Bildschirm (22) einer Benutzerschnittstelle (20) mit mehreren neben dem Bildschirm (22) angeordneten Schaltelementen (28a - 28f), wobei die Bildschirmdarstellung wenigstens ein Piktogramm (24) einer Heizzone (18) enthält, welches eine Position und/oder Größe der Heizzone (18) illustriert, dadurch gekennzeichnet, dass die Bildschirmdarstellung ein dem Piktogramm (24) der Heizzone (18) zugeordnetes Symbol (26) enthält, welches die Heizzone (18) einem der Schaltelemente (28a - 28f) zuordnet. Associating one or more heating elements (10) with the heating zone (18), and generating a screen image on a screen (22) of a user interface (20) having a plurality of switching elements (28a-28f) disposed adjacent the screen (22), the screen image being at least a pictogram (24) of a heating zone (18), which illustrates a position and / or size of the heating zone (18), characterized in that the screen display contains a symbol (26) associated with the icon (24) of the heating zone (18), which assigns the heating zone (18) to one of the switching elements (28a - 28f).
EP09752345A 2008-12-01 2009-11-10 Hob comprising a visual display unit and method for operating a hob Withdrawn EP2370734A2 (en)

Applications Claiming Priority (2)

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ES200803489A ES2363326B1 (en) 2008-12-01 2008-12-01 COOKING FIELD WITH A SCREEN AND PROCEDURE TO OPERATE A COOKING FIELD.
PCT/EP2009/064934 WO2010063539A2 (en) 2008-12-01 2009-11-10 Hob comprising a visual display unit and method for operating a hob

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EP (1) EP2370734A2 (en)
KR (1) KR20110106284A (en)
CN (1) CN102232164A (en)
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WO (1) WO2010063539A2 (en)

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ES2363326A1 (en) 2011-07-29
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US20110226753A1 (en) 2011-09-22
KR20110106284A (en) 2011-09-28
WO2010063539A2 (en) 2010-06-10
CN102232164A (en) 2011-11-02

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