EP2024686B1 - Household appliance, preferably cooking hob - Google Patents

Household appliance, preferably cooking hob Download PDF

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Publication number
EP2024686B1
EP2024686B1 EP07729068.2A EP07729068A EP2024686B1 EP 2024686 B1 EP2024686 B1 EP 2024686B1 EP 07729068 A EP07729068 A EP 07729068A EP 2024686 B1 EP2024686 B1 EP 2024686B1
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EP
European Patent Office
Prior art keywords
cooktop
housing
display
sensor device
light
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.)
Active
Application number
EP07729068.2A
Other languages
German (de)
French (fr)
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EP2024686A2 (en
Inventor
Franz Grätz
Uwe Has
Andreas Marbach
Peter Vetterl
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 Hausgeraete GmbH
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Publication date
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Publication of EP2024686A2 publication Critical patent/EP2024686A2/en
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Publication of EP2024686B1 publication Critical patent/EP2024686B1/en
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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
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H01H2003/085—Retractable turn knobs, e.g. flush mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H01H2219/0622—Light conductor only an illuminated ring around keys

Definitions

  • the invention relates to a hob with a arranged in a hob sensor device for a non-contact detection of a wall temperature of a parked on the hob, radiating heat energy cooking appliance, which sensor device is moved from a sunken in the hob rest position in a cooking field superior work position.
  • the functional organs such as electrically heated cooking zones and non-heated induction cooking zones, spatially relatively far away from their controls such as switching and adjusting organs and display elements, such as signal lights or sounders, the usual way at the Front of the hob are arranged in a control panel.
  • the user must therefore mentally find the assignment of the functional organs to the display and / or controls, which is facilitated by a convenient distribution of these elements according to the arrangement of the functional organs in the hob.
  • a known hob ( DE 199 60 495 C1 ) is as an additional functional organ on infrared rays emanating from the cooking pot to be heated, responding temperature sensor provided approximately in the corner region of the hob, the dome like formed in the working position of an opening of the hob such as a glass ceramic plate protrudes and in the rest position in the opening flush with Hotplate can be sunk.
  • the switching on of the temperature sensor, the choice of the desired cooking level and the like is performed on the aforementioned front panel.
  • the user is signaled on the control panel of the progress achieved in the cooking process.
  • the present invention has for its object, a home appliance of the type mentioned in such a way that the highest degree of logical assignment of functional organs and associated display and / or controls is obtained.
  • This object is achieved with a domestic appliance in that the display and / or operating elements are arranged at the location of the associated functional member.
  • the attention of the user is thereby steered without any mental activity to the functional organ that is operated / controlled or controlled or in which as a result of a signaled malfunction (warning signal) an immediate intervention eg shutdown is required.
  • a user guidance is made possible by which the user in his field of vision is directly and unmistakably displayed the place that needs his attention and / or his actions.
  • Application-oriented functional elements are in particular those in which a mechanical, manual operation or movement is required, such as moving equipment parts, doors, flaps, sensors of the type mentioned or the like, but also stationary functional organs such as hotplates in particular induction hotplates, for example, with can be provided a signaling ring.
  • a particularly advantageous application of the invention is characterized in that the functional member is arranged in a cooktop sensor device for non-contact detection of the wall temperature of a parked on the cooktop heat energy radiating cooking appliance, which can be manually moved from a sunk in the hob rest position in a cooking field level superior working position is.
  • the sensor device at least partially a dome-like, retractable in a cooking plate of the hob housing, in which housing an infrared sensor connected to a control device behind one on the cooking appliance aligned housing window is arranged as well as optical and / or acoustic signal elements for the display of the operating state of the sensor device in the housing and / or this are provided directly locally associated.
  • the retractable housing is displaceably mounted in a stationary receiving part and display and / or operating elements are arranged both in the housing and in the receiving part.
  • display elements can be provided after actuation thereof, while the stationary receiving part, for example, the position of the functional member in the hob characterizing display elements may be provided, preferably in which provided on the surface of the hob plate direct or indirect element of the stationary receiving part with a preferably ring-like, the retractable housing surrounding signal element is provided.
  • the retractable housing at least at its upper, even in the retracted position recognizable boundary, optical display and / or controls in particular signal elements.
  • Such displays and / or controls may also be used e.g. be designed as switching elements and in particular display elements can also be arranged below the upper limit of the retractable housing at its visible in the working position shank.
  • the display and / or operating elements consist of a light-conducting material and are designed as a luminous element, in particular in conjunction with light-emitting diodes or if in terms of displaceability between the stationary receiving part of the sensor device and their movable part, namely the housing, the luminous bodies are connected by means of optical fibers with a central light source.
  • a hob 1 according to Fig. 1 has a glass ceramic plate 2, on both sides of which metallic edge strips 3 are attached. Front side ends the glass ceramic plate 2 in one Plate drum 4, on or at the commercial hobs a display and / or control panel is arranged. On the glass ceramic plate 2 four heated cooking zones 5 are provided and marked accordingly by decor. Below the glass ceramic plate 2 are associated with the cooking zones 5 per se known heating elements, so-called radiant heating elements. By selecting corresponding power levels, the heating powers of the heating elements of a control unit of the hob 1 are set in a conventional manner. In the rear corner region of the hob 1 is a sensor device 6 in an opening 7 (FIG. Fig. 2 ) of the glass ceramic plate 2 mounted retractable.
  • the sensor device 6 is in its basic structure and in its basic function from the document DE 195 37 909 A1 known. In the working position, the sensor device 6, for example, detect the temperature of a parked on the corresponding hob 5, indicated by dashed lines cooking vessel 8 and its outer wall temperature. The measured temperature value is transmitted to the sensor unit 6 to the control unit, not shown, of the hob 1, which in turn controls the heating elements of the hob accordingly. In this case, the sensor device 6 can determine both the cooking vessel temperatures for gas, induction or radiant heating cooktops and measure other relevant cooktops of all kinds temperatures. In the circular plate opening 7 of the glass ceramic plate 2, for example, a metallic ring 9 is inserted from above.
  • the ring 9 has an extending below the glass ceramic plate 2 cylinder wall 10, the plate underside end portion has a latching portion 11.
  • Upper side of the plate has the ring 9 a circumferentially inwardly and outwardly extending collar 12 of the outside overlaps the upper edge of the plate in the region of the plate opening 7 and rests on the glass ceramic plate 2.
  • the sensor device 6 has according to Fig. 2 a tubular receiving part 13 that is pressed in the region of a top plate heel over a seal on the underside of the collar 12 of the ring 9. At a 29nappten with the lower end portion of the receiving part 13 bottom 15 a known locking device 16 is formed. Furthermore, a pressure spring 17 is supported on the bottom 15, in which the energy is stored for the automatic movement of the sensor device 6, ie of the housing 18, from the rest position below the glass ceramic plate ( Fig. 1 ) in the working position above the glass ceramic plate 2 ( Fig. 2 ). In the receiving part 13, a dome-shaped housing 18 is guided vertically displaceable.
  • a Infrared sensor 19 is arranged, which detects by a window provided in the housing 18 incident heat radiation and converts it into a suitable measurement signal.
  • the infrared sensor 19 is connected via an electrical line 26 to a control unit of the hob 1, not shown.
  • a heart-shaped, known per se, slotted guide 21 Below a parallel to the bottom 15 extending partition 20 of the housing 18 is attached to this a heart-shaped, known per se, slotted guide 21. This works together with the latching device 16 and ensures after slight pressure on the cover plate 22 of the housing 18, the automatic extension of the sensor device 6 and a holding of the housing 18 in the rest position when the housing 18 is pressed downwards correspondingly far down into the hob.
  • a cover plate 22 of the moving um istdes annular display element 23 is arranged.
  • the inner part of the ring 9 is formed as an annular display element 24.
  • Both formed as light rings and consisting of a light-conducting material display elements 23, 24 each light source as a light-emitting diode 25 is assigned.
  • the functional element that is to say in the example the sensor device 6, can be provided with one or more operating elements, eg with an on-off switch in the area of the cover plate 22.
  • the functional element can also be acoustic signal transmitters eg a buzzer 27 as well as devices for interrupting light Flashing or by color change, different coloration of the display and the like, whereby not only the position and readiness to work of the function organ is displayed but also other signals eg with respect to temperature setpoint, warning signals at overtemperature or other user instructions can be made visible or audible to the user.
  • the signals necessary for the control of the displays can be output by a central control device of the hob 1 or be initiated by a small control unit in the functional organ.

Description

Die Erfindung bezieht sich auf ein Kochfeld mit einer in einem Kochfeld angeordneten Sensoreinrichtung für eine berührungslose Erfassung einer Wandtemperatur eines auf dem Kochfeld abgestellten, Wärmeenergie abstrahlenden Gargeräts, welche Sensoreinrichtung aus einer im Kochfeld versenkten Ruhestellung in eine die Kochfeldebene überragende Arbeitsstellung bewegbar ist.The invention relates to a hob with a arranged in a hob sensor device for a non-contact detection of a wall temperature of a parked on the hob, radiating heat energy cooking appliance, which sensor device is moved from a sunken in the hob rest position in a cooking field superior work position.

Bei elektrischen Hausgeräten, etwa bei Kochfeldern, sind die Funktionsorgane, wie elektrisch beheizte Kochstellen und nicht-beheizte Induktions-Kochzonen, räumlich relativ weit entfernt von ihren Bedienelementen wie Schalt- und Einstellorganen und Anzeigeelementen, wie Signalleuchten oder akustische Signalgeber, die üblicher Weise an der Frontseite des Kochfeldes in einem Bedienfeld angeordnet sind. Der Benutzer muss also gedanklich die Zuordnung der Funktionsorgane zu den Anzeige- und/oder Bedienelementen finden, was durch eine zweckmäßige Verteilung dieser Elemente entsprechend der Anordnung der Funktionsorgane im Kochfeld erleichtert wird.In electrical household appliances, such as cooktops, the functional organs, such as electrically heated cooking zones and non-heated induction cooking zones, spatially relatively far away from their controls such as switching and adjusting organs and display elements, such as signal lights or sounders, the usual way at the Front of the hob are arranged in a control panel. The user must therefore mentally find the assignment of the functional organs to the display and / or controls, which is facilitated by a convenient distribution of these elements according to the arrangement of the functional organs in the hob.

Bei einem bekannten Kochfeld ( DE 199 60 495 C1 ) ist als zusätzliches Funktionsorgan ein auf Infrarotstrahlen, die vom zu erhitzendem Kochtopf ausgehen, reagierender Temperatursensor etwa im Eckenbereich des Kochfeldes vorgesehen, der etwa domartig ausgebildet in der Arbeitsstellung aus einer Öffnung des Kochfeldes z.B. einer Glaskeramikplatte ragt und in der Ruhestellung in der Öffnung flächenbündig zur Kochplatte versenkt werden kann. Das Einschalten des Temperatursensors, die Wahl der gewünschten Kochstufe und dergleichen wird am erwähnten frontseitigen Bedienfeld durchgeführt. Ebenso wird dem Benutzer am Bedienfeld der erreichte Fortschritt des Kochprozesses signalisiert.In a known hob ( DE 199 60 495 C1 ) is as an additional functional organ on infrared rays emanating from the cooking pot to be heated, responding temperature sensor provided approximately in the corner region of the hob, the dome like formed in the working position of an opening of the hob such as a glass ceramic plate protrudes and in the rest position in the opening flush with Hotplate can be sunk. The switching on of the temperature sensor, the choice of the desired cooking level and the like is performed on the aforementioned front panel. Likewise, the user is signaled on the control panel of the progress achieved in the cooking process.

Weitere Kochfelder mit domartigen Temperatursensoren sind aus der DE 10 2005 041574 A1 und der EP 1583 396 A2 bekannt.Other hobs with dome-shaped temperature sensors are from the DE 10 2005 041574 A1 and the EP 1583 396 A2 known.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Hausgerät der eingangs genannten Art so auszugestalten, dass ein Höchstmaß an logischer Zuordnung von Funktionsorganen und zugehörigen Anzeige- und/oder Bedienelementen erhalten wird.The present invention has for its object, a home appliance of the type mentioned in such a way that the highest degree of logical assignment of functional organs and associated display and / or controls is obtained.

Diese Aufgabe wird bei einem Hausgerät dadurch gelöst, dass die Anzeige- und/oder Bedienelemente am Ort des zugehörigen Funktionsorgans angeordnet sind. Die Aufmerksamkeit des Benutzers wird dadurch ohne jegliche gedankliche Tätigkeit auf dasjenige Funktionsorgan gelenkt, das bedient/betätigt oder kontrolliert werden soll bzw. bei dem infolge einer signalisierten Fehlfunktion (Warnsignal) ein sofortiges Eingreifen z.B. Abschalten erforderlich ist. Auf diese Weise wird eine Benutzerführung ermöglicht, durch welche dem Benutzer in seinem Blickfeld direkt und unmissverständlich der Ort angezeigt wird, welche seiner Aufmerksamkeit und/oder seines Handelns bedarf. Anwendungsgerechte Funktionselemente sind insbesondere solche, bei denen eine mechanische, manuelle Betätigung bzw. Bewegung erforderlich ist, wie bei beweglichen Geräteteilen, Türen, Klappen, Sensoren der eingangs genannten Art oder dergleichen, aber auch stationäre Funktionsorgane wie Kochstellen insbesondere Induktions-Kochstellen, die beispielsweise mit einem signalgebenden Leuchtring versehen sein können. Eine besonders vorteilhafte Anwendung der Erfindung ist dadurch gekennzeichnet, dass das Funktionsorgan eine in einem Kochfeld angeordnete Sensoreinrichtung für die berührungslose Erfassung der Wandtemperatur eines auf dem Kochfeld abgestellten Wärmeenergie abstrahlenden Gargerätes ist, die aus einer im Kochfeld versenkten Ruhestellung manuell in eine die Kochfeldebene überragende Arbeitsstellung bewegbar ist. Im Sinne einer Ausbildung der Anzeige- und/oder Bedienelemente als Bestandteile des Funktionsorgans ist es vorteilhaft, wenn die Sensoreinrichtung zumindest teilweise ein domartiges, in einer Kochfeldplatte des Kochfeldes versenkbares Gehäuse aufweist, in welchem Gehäuse eine mit einer Steuereinrichtung verbundene Infrarotsensorik hinter einem auf das Gargerät ausgerichteten Gehäusefenster angeordnet ist sowie optische und/oder akustische Signalelemente für die Anzeige des Betriebszustandes der Sensoreinrichtung im Gehäuse und/oder diesem unmittelbar örtlich zugeordnet vorgesehen sind.This object is achieved with a domestic appliance in that the display and / or operating elements are arranged at the location of the associated functional member. The attention of the user is thereby steered without any mental activity to the functional organ that is operated / controlled or controlled or in which as a result of a signaled malfunction (warning signal) an immediate intervention eg shutdown is required. In this way, a user guidance is made possible by which the user in his field of vision is directly and unmistakably displayed the place that needs his attention and / or his actions. Application-oriented functional elements are in particular those in which a mechanical, manual operation or movement is required, such as moving equipment parts, doors, flaps, sensors of the type mentioned or the like, but also stationary functional organs such as hotplates in particular induction hotplates, for example, with can be provided a signaling ring. A particularly advantageous application of the invention is characterized in that the functional member is arranged in a cooktop sensor device for non-contact detection of the wall temperature of a parked on the cooktop heat energy radiating cooking appliance, which can be manually moved from a sunk in the hob rest position in a cooking field level superior working position is. In terms of a design of the display and / or controls as components of the functional body, it is advantageous if the sensor device at least partially a dome-like, retractable in a cooking plate of the hob housing, in which housing an infrared sensor connected to a control device behind one on the cooking appliance aligned housing window is arranged as well as optical and / or acoustic signal elements for the display of the operating state of the sensor device in the housing and / or this are provided directly locally associated.

Gemäß einer bevorzugten Ausführungsform ist das versenkbare Gehäuse in einem stationären Aufnahmeteil verschiebbar gelagert und sowohl im Gehäuse als auch im Aufnahmeteil sind Anzeige- und/oder Bedienelemente angeordnet. Am bewegbaren Teil des Funktionsorgans können vorzugsweise nach Betätigung desselben Anzeigeelemente vorgesehen sein, während am stationären Aufnahmeteil z.B. die Position des Funktionsorgans im Kochfeld kennzeichnende Anzeigeelemente vorgesehen sein können, vorzugsweise in dem ein an der Oberfläche der Kochfeldplatte vorgesehenes unmittelbares oder mittelbares Element des stationären Aufnahmeteils mit einem vorzugsweise ringartigen, das versenkbare Gehäuse umgebenden Signalelement versehen ist.According to a preferred embodiment, the retractable housing is displaceably mounted in a stationary receiving part and display and / or operating elements are arranged both in the housing and in the receiving part. On the movable part of the functional member preferably display elements can be provided after actuation thereof, while the stationary receiving part, for example, the position of the functional member in the hob characterizing display elements may be provided, preferably in which provided on the surface of the hob plate direct or indirect element of the stationary receiving part with a preferably ring-like, the retractable housing surrounding signal element is provided.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung weist das versenkbare Gehäuse zumindest an seiner oberen, auch in der versenkten Stellung erkennbaren Begrenzung, optische Anzeige- und/oder Bedienelemente insbesondere Signalelemente auf. Derartige Anzeige- und/oder Bedienelemente können auch z.B. als Schaltelemente ausgebildet sein und insbesondere Anzeigeelemente können auch unterhalb der oberen Begrenzung des versenkbaren Gehäuses an dessen in der Arbeitsstellung sichtbarem Schaft angeordnet sein.According to an advantageous embodiment of the invention, the retractable housing, at least at its upper, even in the retracted position recognizable boundary, optical display and / or controls in particular signal elements. Such displays and / or controls may also be used e.g. be designed as switching elements and in particular display elements can also be arranged below the upper limit of the retractable housing at its visible in the working position shank.

Bei Verwendung von optischen Signalgebern für insbesondere die Anzeigeelemente ist es vorteilhaft, wenn die Anzeige- und/oder Bedienelemente aus einem lichtleitendem Material bestehen und als Leuchtkörper insbesondere in Verbindung mit lichtemittierenden Dioden ausgebildet sind oder wenn hinsichtlich der Verschiebbarkeit zwischen dem stationären Aufnahmeteil der Sensoreinrichtung und deren beweglichem Teil, nämlich dem Gehäuse die Leuchtkörper mittels Lichtleiter mit einer zentralen Lichtquelle verbunden sind.When using optical signal generators for in particular the display elements, it is advantageous if the display and / or operating elements consist of a light-conducting material and are designed as a luminous element, in particular in conjunction with light-emitting diodes or if in terms of displaceability between the stationary receiving part of the sensor device and their movable part, namely the housing, the luminous bodies are connected by means of optical fibers with a central light source.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich in Varianten bzgl. der Erkennbarkeit der Anzeige- und Bedienelemente z.B. dadurch, dass den optischen Anzeige- und/oder Bedienelementen Einrichtungen zur Lichtunterbrechung, d.h. durch Blinken oder Farbwechsel zugeordnet sind und/oder dass den Anzeige- und/oder Bedienelementen akustische Signalgeber, z.B. Summer, zugeordnet sind.Further advantageous embodiments of the invention will become apparent in variants with respect to the recognizability of the display and control elements, e.g. in that the optical display and / or operating means for interrupting light, i. are assigned by flashing or color change and / or that the display and / or operating elements acoustic beeps, e.g. Summer, are assigned.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels nachstehend erläutert.The invention is explained below with reference to an embodiment shown in the drawing.

Es zeigt:

Fig. 1
die perspektivische Darstellung eines Kochfeldes,
Fig. 2
eine vergrößerte Schnittansicht eines als Sensoreinrichtung ausgebildeten Funktionsorgans gemäß der Schnittlinie II-II in Fig. 1.
It shows:
Fig. 1
the perspective view of a hob,
Fig. 2
an enlarged sectional view of a trained as a sensor device function element according to the section line II-II in Fig. 1 ,

Ein Kochfeld 1 gemäß Fig. 1 weist eine Glaskeramikplatte 2 auf, an deren beiden Seiten metallische Randleisten 3 befestigt sind. Frontseitig endet die Glaskeramikplatte 2 in einer Plattenfassette 4, auf bzw. an der bei handelsüblichen Kochfeldern ein Anzeige- und/oder Bedienfeld angeordnet ist. Auf der Glaskeramikplatte 2 sind vier beheizbare Kochstellen 5 vorgesehen und durch Dekor entsprechend markiert. Unterhalb der Glaskeramikplatte 2 sind den Kochstellen 5 zugeordnet an sich bekannte Heizelemente, so genannte Strahlungsheizelemente. Durch die Auswahl entsprechender Leistungsstufen werden die Heizleistungen der Heizelemente von einer Steuereinheit des Kochfeldes 1 in an sich bekannter Weise eingestellt. Im rückseitigen Eckbereich des Kochfeldes 1 ist eine Sensoreinrichtung 6 in einer Öffnung 7 (Fig. 2) der Glaskeramikplatte 2 versenkbar montiert. Die Sensoreinrichtung 6 ist in ihrem Grundaufbau und in ihrer Grundfunktion aus der Druckschrift DE 195 37 909 A1 bekannt. In der Arbeitsstellung kann die Sensoreinrichtung 6 beispielsweise die Temperatur eines auf der entsprechenden Kochstelle 5 abgestellten, gestrichelt angedeuteten Kochgefäßes 8 bzw. dessen Außenwandtemperatur erfassen. Den gemessenen Temperaturwert übermittelt die Sensoreinrichtung 6 an die nicht dargestellte Steuereinheit des Kochfeldes 1, die wiederum die Heizelemente des Kochfeldes entsprechend ansteuert. Dabei kann die Sensoreinrichtung 6 sowohl die Kochgefäßtemperaturen bei Gas-, Induktions- oder Strahlungsheizelemente-Kochfeldern ermitteln als auch andere bei Kochfeldern aller Art relevanten Temperaturen messen. In der kreisförmigen Plattenöffnung 7 der Glaskeramikplatte 2 ist von oben ein z.B. metallischer Ring 9 gesteckt. Der Ring 9 weist eine sich unterhalb der Glaskeramikplatte 2 erstreckende Zylinderwand 10 auf, deren plattenunterseitiger Endabschnitt einen Rastabschnitt 11 besitzt. Plattenoberseitig besitzt der Ring 9 einen sich umfangseitig nach Innen und nach Außen erstreckenden Kragen 12 der außenseitig den oberen Plattenrand im Bereich der Plattenöffnung 7 übergreift und auf der Glaskeramikplatte 2 ruht.A hob 1 according to Fig. 1 has a glass ceramic plate 2, on both sides of which metallic edge strips 3 are attached. Front side ends the glass ceramic plate 2 in one Plate drum 4, on or at the commercial hobs a display and / or control panel is arranged. On the glass ceramic plate 2 four heated cooking zones 5 are provided and marked accordingly by decor. Below the glass ceramic plate 2 are associated with the cooking zones 5 per se known heating elements, so-called radiant heating elements. By selecting corresponding power levels, the heating powers of the heating elements of a control unit of the hob 1 are set in a conventional manner. In the rear corner region of the hob 1 is a sensor device 6 in an opening 7 (FIG. Fig. 2 ) of the glass ceramic plate 2 mounted retractable. The sensor device 6 is in its basic structure and in its basic function from the document DE 195 37 909 A1 known. In the working position, the sensor device 6, for example, detect the temperature of a parked on the corresponding hob 5, indicated by dashed lines cooking vessel 8 and its outer wall temperature. The measured temperature value is transmitted to the sensor unit 6 to the control unit, not shown, of the hob 1, which in turn controls the heating elements of the hob accordingly. In this case, the sensor device 6 can determine both the cooking vessel temperatures for gas, induction or radiant heating cooktops and measure other relevant cooktops of all kinds temperatures. In the circular plate opening 7 of the glass ceramic plate 2, for example, a metallic ring 9 is inserted from above. The ring 9 has an extending below the glass ceramic plate 2 cylinder wall 10, the plate underside end portion has a latching portion 11. Upper side of the plate has the ring 9 a circumferentially inwardly and outwardly extending collar 12 of the outside overlaps the upper edge of the plate in the region of the plate opening 7 and rests on the glass ceramic plate 2.

Die Sensoreinrichtung 6 weist gemäß Fig. 2 ein rohrförmiges Aufnahmeteil 13 auf, dass im Bereich eines plattenoberseitigen Absatzes über eine Dichtung an die Unterseite des Kragens 12 des Ringes 9 gedrückt ist. An einem mit dem unteren Endabschnitt des Aufnahmeteils 13 verschnappten Boden 15 ist eine an sich bekannte Rastvorrichtung 16 ausgebildet. Weiterhin stützt sich an dem Boden 15 eine Druckfeder 17 ab, in der die Energie gespeichert ist zur selbsttätigen Bewegung der Sensoreinrichtung 6 d.h. des Gehäuses 18 aus der Ruhestellung unterhalb der Glaskeramikplatte (Fig. 1) in die Arbeitsstellung oberhalb der Glaskeramikplatte 2 (Fig. 2). In dem Aufnahmeteil 13 ist ein domförmiges Gehäuse 18 vertikal verschiebbar geführt. Im Gehäuse 18 ist eine Infrarotsensorik 19 angeordnet, die durch ein im Gehäuse 18 vorgesehenes Fenster einfallende Wärmestrahlung detektiert und in ein geeignetes Messsignal umformt. Die Infrarotsensorik 19 ist über eine elektrische Leitung 26 mit einer nicht gezeigten Steuereinheit des Kochfeldes 1 verbunden. Unterhalb einer parallel zum Boden 15 verlaufenden Trennwand 20 des Gehäuses 18 ist an dieser eine herzförmige, an sich bekannte, Kulissenführung 21 befestigt. Diese wirkt zusammen mit der Rastvorrichtung 16 und gewährleistet nach leichtem Druck auf die Deckplatte 22 des Gehäuses 18 das selbsttätige Ausfahren der Sensoreinrichtung 6 sowie ein Festhalten des Gehäuses 18 in der Ruheposition, wenn das Gehäuse 18 entsprechend weit nach unten in das Kochfeldinnere gedrückt wird.The sensor device 6 has according to Fig. 2 a tubular receiving part 13 that is pressed in the region of a top plate heel over a seal on the underside of the collar 12 of the ring 9. At a verschnappten with the lower end portion of the receiving part 13 bottom 15 a known locking device 16 is formed. Furthermore, a pressure spring 17 is supported on the bottom 15, in which the energy is stored for the automatic movement of the sensor device 6, ie of the housing 18, from the rest position below the glass ceramic plate ( Fig. 1 ) in the working position above the glass ceramic plate 2 ( Fig. 2 ). In the receiving part 13, a dome-shaped housing 18 is guided vertically displaceable. In the housing 18 is a Infrared sensor 19 is arranged, which detects by a window provided in the housing 18 incident heat radiation and converts it into a suitable measurement signal. The infrared sensor 19 is connected via an electrical line 26 to a control unit of the hob 1, not shown. Below a parallel to the bottom 15 extending partition 20 of the housing 18 is attached to this a heart-shaped, known per se, slotted guide 21. This works together with the latching device 16 and ensures after slight pressure on the cover plate 22 of the housing 18, the automatic extension of the sensor device 6 and a holding of the housing 18 in the rest position when the housing 18 is pressed downwards correspondingly far down into the hob.

Wie in Fig. 2 angedeutet ist am oberen Ende des Gehäuses 18 ein dessen Deckplatte 22 umziehendes ringförmiges Anzeigeelement 23 angeordnet. In ähnlicher Weise ist der innere Teil des Ringes 9 als ringförmiges Anzeigeelement 24 ausgebildet. Beiden als Leuchtringe ausgebildeten und aus einem lichtleitendem Material bestehenden Anzeigeelementen 23, 24 ist jeweils als Lichtquelle eine lichtemittierende Diode 25 zugeordnet. Selbstverständlich kann es vorteilhaft sein, am in der Arbeitsstellung des Gehäuses 18 sichtbaren Schaft desselben unterhalb der Deckplatte 22 Anzeigelemente anzuordnen. Ferner kann das Funktionsorgan, also im Beispiel die Sensoreinrichtung 6, mit einem oder mehreren Bedienelementen versehen sein, z.B. mit einem Ein-Aus-Schalter im Bereich der Deckplatte 22. Schließlich kann das Funktionsorgan auch akustische Signalgeber z.B. einen Summer 27 sowie Einrichtungen zur Lichtunterbrechung durch Blinken oder durch Farbwechsel, unterschiedliche Färbung der Anzeige und dergleichen aufweisen, wodurch nicht nur die Position und die Arbeitsbereitschaft des Funktionsorgans angezeigt wird sondern auch weitere Signale z.B. bezüglich Temperatur-Sollwert, Warnsignale bei Übertemperatur oder sonstige Nutzerhinweise dem Benutzer sichtbar oder hörbar gemacht werden können. Die zur Ansteuerung der Anzeigen notwendigen Signale können von einer zentralen Steuereinrichtung des Kochfeldes 1 abgegeben werden oder von einer kleinen Steuereinheit im Funktionsorgan initiiert werden. As in Fig. 2 indicated at the upper end of the housing 18, a cover plate 22 of the moving umziehendes annular display element 23 is arranged. Similarly, the inner part of the ring 9 is formed as an annular display element 24. Both formed as light rings and consisting of a light-conducting material display elements 23, 24 each light source as a light-emitting diode 25 is assigned. Of course, it may be advantageous to arrange on the visible in the working position of the housing 18 shaft thereof below the cover plate 22 display elements. Furthermore, the functional element, that is to say in the example the sensor device 6, can be provided with one or more operating elements, eg with an on-off switch in the area of the cover plate 22. Finally, the functional element can also be acoustic signal transmitters eg a buzzer 27 as well as devices for interrupting light Flashing or by color change, different coloration of the display and the like, whereby not only the position and readiness to work of the function organ is displayed but also other signals eg with respect to temperature setpoint, warning signals at overtemperature or other user instructions can be made visible or audible to the user. The signals necessary for the control of the displays can be output by a central control device of the hob 1 or be initiated by a small control unit in the functional organ.

Claims (12)

  1. Cooktop (1) with a sensor device (6) arranged therein for non-contact detection of a wall temperature of a cooking vessel (8) radiating heat energy placed on the cooktop (1), which sensor device (6) is able to be moved from a retracted rest position within the cooktop (1) into an operating position projecting above the level of the cooktop, characterised in that display and/or control elements (23, 24) for the actuation or monitoring of the sensor device (6) are part of the sensor device (6).
  2. Cooktop (1) according to one of the previous claims, characterised in that the sensor device (6) can be moved manually or by a motor.
  3. Cooktop (1) according to one of the previous claims, characterised in that the sensor device (6) features a dome-shaped housing (18) able to be retracted into a cooking zone (2) of the cooktop (1), in which housing an infrared sensor system (19) connected to a control device is arranged behind a housing window aligned to the cooking vessel (8) as well as optical and/or acoustic signal elements (23, 24) for the display or for the operating state being provided in the housing (18) and/or being assigned thereto in the immediate vicinity thereof.
  4. Cooktop (1) according to claim 3, characterised in that the retractable housing (18) is supported to enable it to move within a stationary mounting part (13) and that display and/or control elements (23, 24) are arranged in the housing (18) and/or in the mounting part (13).
  5. Cooktop (1) according to one of claims 3 or 4, characterised in that a ring (9) provided on the surface of the cooking zone (2) as a direct or indirect part of a stationary mounting part (13) for the retractable housing (18) is provided with an annular signal element (24) surrounding the housing (18).
  6. Cooktop (1) according to one of claims 3 to 5, characterised in that display elements are arranged on the shaft visible in the operating position of the housing (18) below a cover plate (22).
  7. Cooktop (1) according to one of claims 3 to 6, characterised in that the sensor device (6) is provided with an on/off switch in the area of a cover plate (22).
  8. Cooktop (1) according to one of claims 3-7, characterised in that the retractable housing (18) at least on its upper delimiting part, also visible in the retracted position, features optical display and/or control elements, especially signal elements (23).
  9. Cooktop (1) according to one of the previous claims, characterised in that the display and/or control elements (23, 24) are embodied as a light unit consisting of light-conducting material, to which light sources light-emitting diodes (25) are preferably assigned.
  10. Cooktop (1) according to claim 9, characterised in that the light units are connected by means of optical fibres to a central light source.
  11. Cooktop (1) according to one of the previous claims, characterised in that the optical display and/or control elements are assigned facilities for interrupting the light, i.e. through flashing or through colour change.
  12. Cooktop (1) according to one of the previous claims, characterised in that the display and/or control elements are assigned acoustic signal generators (27) e.g. buzzers.
EP07729068.2A 2006-05-19 2007-05-14 Household appliance, preferably cooking hob Active EP2024686B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006023702A DE102006023702A1 (en) 2006-05-19 2006-05-19 Domestic appliance, preferably hob
PCT/EP2007/054616 WO2007134998A2 (en) 2006-05-19 2007-05-14 Household appliance, preferably cooking hob

Publications (2)

Publication Number Publication Date
EP2024686A2 EP2024686A2 (en) 2009-02-18
EP2024686B1 true EP2024686B1 (en) 2016-11-30

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Application Number Title Priority Date Filing Date
EP07729068.2A Active EP2024686B1 (en) 2006-05-19 2007-05-14 Household appliance, preferably cooking hob

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US (1) US20090159589A1 (en)
EP (1) EP2024686B1 (en)
DE (1) DE102006023702A1 (en)
ES (1) ES2609475T3 (en)
WO (1) WO2007134998A2 (en)

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US10935252B2 (en) * 2015-09-04 2021-03-02 Electrolux Home Products, Inc. Methods and apparatus for controlling a cooking appliance
KR20170053947A (en) * 2015-11-09 2017-05-17 삼성전자주식회사 Cooking apparatus, and control method for the same
EP3336436A1 (en) * 2016-12-19 2018-06-20 Electrolux Appliances Aktiebolag Cooking hob with a monitoring device
KR20180080060A (en) * 2017-01-03 2018-07-11 삼성전자주식회사 Oven
DE102018202255B4 (en) * 2018-02-14 2022-02-10 E.G.O. Elektro-Gerätebau GmbH Cooktop and method of operating a cooktop
IT201800004418A1 (en) * 2018-04-12 2019-10-12 Induction hob with automatic cooking

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Also Published As

Publication number Publication date
ES2609475T3 (en) 2017-04-20
EP2024686A2 (en) 2009-02-18
WO2007134998A2 (en) 2007-11-29
WO2007134998A3 (en) 2008-01-31
DE102006023702A1 (en) 2007-11-22
US20090159589A1 (en) 2009-06-25

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