EP0845922B1 - Sensor controled cooking unit with condensate drain in the constructional functional unit - Google Patents

Sensor controled cooking unit with condensate drain in the constructional functional unit Download PDF

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Publication number
EP0845922B1
EP0845922B1 EP97121079A EP97121079A EP0845922B1 EP 0845922 B1 EP0845922 B1 EP 0845922B1 EP 97121079 A EP97121079 A EP 97121079A EP 97121079 A EP97121079 A EP 97121079A EP 0845922 B1 EP0845922 B1 EP 0845922B1
Authority
EP
European Patent Office
Prior art keywords
sensor
infrared sensor
unit
cooking
dome
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.)
Expired - Lifetime
Application number
EP97121079A
Other languages
German (de)
French (fr)
Other versions
EP0845922A2 (en
EP0845922A3 (en
Inventor
Uwe Dipl.-Ing. Has
Karl-Richard Dipl.-Phys. Bosold
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 EP0845922A2 publication Critical patent/EP0845922A2/en
Publication of EP0845922A3 publication Critical patent/EP0845922A3/en
Application granted granted Critical
Publication of EP0845922B1 publication Critical patent/EP0845922B1/en
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food
    • H05B1/0266—Cooktops
    • 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
    • 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
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to a sensor-controlled cooking unit consisting of Cooking appliance, sensors and hob, one assigned to the sensor-controlled cooking unit Infrared sensor slightly increased above the cooktop is arranged.
  • EP-A-0 142 153 shows a sensor-controlled cooking unit according to the preamble of claim 1.
  • Heating processes especially cooking processes in cooking appliances made from cooktops expire automatically when the temperature of the food to be cooked during the heating process is sufficiently well measurable. Temperature profiles obtained from such a type can be concluded on the progress of the cooking process. there corresponds to the temperature of, for example, the bottom of the cookware or one Cookware wall temperature as far as possible, where the cooking process is the parboiling phase exceeded and reached the so-called steady state of cooking is.
  • the temperature measurement is carried out by different acting Sensor technology. For example, radiant heat can be collected and transferred via a Thermocouple chain can be converted into electrical energy.
  • the object of the present invention is an infrared sensor-controlled cooking unit build up, the infrared sensor unit no error response due to humidity should have.
  • the solution to this problem is characterized in that the constructive Functional unit integrated infrared sensor unit (sensor dome) by means of a condensate trap in front of a condensing water film is protected.
  • Another advantageous solution The task is characterized in that in combination with the roughened Inside the plastic housing of the sensor dome or as a sole measure there is a hygroscopic pill in the sensor housing.
  • Other beneficial Embodiments of the invention are contained in the subclaims. An embodiment according to the invention is described below with reference to the drawing.
  • Fig. 1 a sectional figure of the constructive functional unit (infrared sensor dome) with infrared sensor unit
  • Fig. 2 a switchgear design between sensor unit and microswitch.
  • an infrared sensor 1 a lens for the infrared sensor 2, a sensor board 3, a cover cap 4, a slide 5, a locking mechanism 6, a compression spring 7, a lower part 8, a base plate 9, a lower cover 10, a connecting line 11, a housing of the sensor unit 12, a hob frame 13, a glass ceramic hob 14, a microswitch 15, a switching plunger of the microswitch 16, a rocker switch 17, a bearing pin 18, a screw point to the trough frame 19, a roughened inside 20 and a hygroscopic pill 21 recognizable.
  • the construction of the infrared sensor functional unit is as follows described. Fig. 1 serves as the basis for the functional description.
  • the carriage 5 is inserted into the housing 12 and by means of the locking mechanism 6, the one disc on both sides with a heart-shaped guide represents, fixed.
  • the compression spring 7 is snapped onto the housing 12 Lower part 8 held.
  • the rocker switch 17 shown in Figure 2 is on a Housing 12 molded bearing pin 18 pushed. With a lower cover 10 the opening on the lower part 8 is closed and thereby the connecting line 11th led away laterally so that it does not come into contact with the bottom plate 9.
  • the Infrared transparent plastic lens 2 which is a conventional biconvex lens or a plastic lens equipped with Fresnel lens segments, is closely fitting on the Pressed sheet metal housing of the infrared sensor 1. This will equalize the temperature between lens and sensor.
  • the sensor board 3 is inserted into the cover cap 4 used, the connecting lines 11 are through the carriage 5 and the lower part 8th threaded through and the cover cap 4 together with the circuit board on the carriage 5 detent mounted, the board 3 positioned itself in the carriage 5.
  • the microswitch 15 is snapped into the housing 12.
  • the pre-assembled system that is centered and screwed into the trough frame works as follows: Press on the cover cap 4, the sensor system (sensor dome) is unlocked and extends upwards after the actuation pressure has been removed. It will end of the stroke over a run-up slope on the slide 5, the rocker switch 17 around Bearing pin 18 deflected and thereby the microswitch 15 closed.
  • the Closing the microswitch 15 signals the electronics that the System.
  • the sensor system is locked by pressing the Cover cap 4 as far as it will go and let go.
  • the optical system that can also be a mirror system, set so that even with different Distances between the sensor and the saucepan the same measured value is recorded.
  • the constructive sensor unit is synonymous with the term infrared sensor dome fully sealed housing. This housing is injection molded from plastic.
  • the infrared sensor dome integrated in a constructive functional unit should be by means of a Protect the condensate trap from a condensing water film. This is possible that the condensate trap by a rough as possible Inner wall element is formed on the plastic housing of the sensor dome. Such a thing designed inner wall has an enlarged surface and must be sharp-edged his. It can be assumed that the water vapor is preferably sharp Edges condensed. To prevent this, measures can be taken that during installation of the infrared sensor dome included as little water vapor as possible becomes.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Electric Ovens (AREA)

Description

Die Erfindung bezieht sich auf eine sensorgesteuerte Garungseinheit, bestehend aus Gargerät, Sensorik und Kochfeld, wobei ein der sensorgesteuerten Garungseinheit zugeordneter Infrarotsensor kochstellenbezogen leicht erhöht oberhalb des Kochfeldes angeordnet ist.The invention relates to a sensor-controlled cooking unit consisting of Cooking appliance, sensors and hob, one assigned to the sensor-controlled cooking unit Infrared sensor slightly increased above the cooktop is arranged.

Die EP-A-0 142 153 zeigt eine sensorgesteuerte Garungseinheit gemäß dem Oberbegriff des Anspruchs 1.EP-A-0 142 153 shows a sensor-controlled cooking unit according to the preamble of claim 1.

Erwärmungsvorgänge, besonders Garvorgänge in Gargeräten aus Kochmulden können automatisch ablaufen, wenn die Temperatur des Gargutes während des Erwärmungsvorganges hinreichend gut meßbar ist. Aus solcher Art gewonnenen Temperaturverläufen kann auf den Fortschritt des Garungsprozesses geschlossen werden. Dabei entspricht die Temperatur beispielsweise des Kochgeschirrbodens bzw. einer Kochgeschirrwand weitestgehend Garguttemperaturen, wo der Garvorgang die Ankochphase überschritten hat und der sogenannte eingeschwungene Kochzustand erreicht ist.Heating processes, especially cooking processes in cooking appliances made from cooktops expire automatically when the temperature of the food to be cooked during the heating process is sufficiently well measurable. Temperature profiles obtained from such a type can be concluded on the progress of the cooking process. there corresponds to the temperature of, for example, the bottom of the cookware or one Cookware wall temperature as far as possible, where the cooking process is the parboiling phase exceeded and reached the so-called steady state of cooking is.

Aus dem Stand der Technik ist bekannt, über die Messung der Temperatur an Gargeräten, den Garungsvorgang so zu steuern, daß minimale Energieaufwände angestrebt werden können. Dabei erfolgt die Temperaturmessung durch unterschiedlich wirkende Sensortechnik. So kann beispielsweise Strahlungswärme aufgefangen und über eine Thermoelementenkette in elektrische Energie gewandelt werden.It is known from the prior art, via the measurement of the temperature on cooking appliances, to control the cooking process so that minimal energy expenditure is sought can be. The temperature measurement is carried out by different acting Sensor technology. For example, radiant heat can be collected and transferred via a Thermocouple chain can be converted into electrical energy.

Aufgabe der vorliegenden Erfindung ist es, eine Infrarot sensorgesteuerte Garungseinheit aufzubauen, wobei die Infrarotsensoreinheit keine Fehlerreaktion infolge Luftfeuchtigkeit aufweisen soll. The object of the present invention is an infrared sensor-controlled cooking unit build up, the infrared sensor unit no error response due to humidity should have.

Die Lösung dieser Aufgabe ist dadurch gekennzeichnet, daß die in einer konstruktiven Funktionseinheit integrierte Infrarotsensoreinheit (Sensordom) mittels einer Kondensatfalle vor einem abkondensierenden Wasserfilm geschützt ist. Eine weitere vorteilhafte Lösung der Aufgabenstellung ist dadurch gekennzeichnet, daß in Kombination zu der aufgerauhten Innenseite am Kunststoffgehäuse des Sensordoms oder als alleinige Maßnahme eine hygroskopische Pille im Sensorgehäuse befindlich ist. Andere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen enthalten. Ein Ausführungsbeispiel nach der Erfindung ist im folgenden anhand der Zeichnung näher beschrieben.The solution to this problem is characterized in that the constructive Functional unit integrated infrared sensor unit (sensor dome) by means of a condensate trap in front of a condensing water film is protected. Another advantageous solution The task is characterized in that in combination with the roughened Inside the plastic housing of the sensor dome or as a sole measure there is a hygroscopic pill in the sensor housing. Other beneficial Embodiments of the invention are contained in the subclaims. An embodiment according to the invention is described below with reference to the drawing.

Es zeigt: Fig. 1 eine Schnittfigur der konstruktiven Funktionseinheit (Infrarotsensordom) mit Infrarotsensoreinheit, Fig. 2 eine schalttechnische Ausführung zwischen Sensoreinheit und Mikroschalter. It shows: Fig. 1 a sectional figure of the constructive functional unit (infrared sensor dome) with infrared sensor unit, Fig. 2 a switchgear design between sensor unit and microswitch.

Gemäß der Figuren 1, 2 sind ein Infrarotsensor 1, eine Linse für den Infrarotsensor 2, eine Sensorplatine 3, eine Abdeckkappe 4, ein Schlitten 5, eine Verriegelungsmechanik 6, eine Druckfeder 7, ein Unterteil 8, ein Bodenblech 9, eine untere Abdeckung 10, eine Anschlußleitung 11, ein Gehäuse der Sensoreinheit 12, ein Kochmuldenrahmen 13, eine Glaskeramikkochfläche 14, ein Mikroschalter 15, ein Schaltstößel des Mikroschalters 16, eine Schaltwippe 17, ein Lagerzapfen 18, eine Schraubstelle zum Muldenrahmen 19, eine aufgerauhte Gehäuseinnenseite 20 und eine hygroskopische Pille 21 erkennbar. Der konstruktive Aufbau der Funktionseinheit Infrarotsensor ist wie folgt beschrieben. Zur Grundlage der Funktionsbeschreibung dient die Fig. 1. Der Schlitten 5 wird in das Gehäuse 12 eingeschoben und mittels der Verriegelsungsmechanik 6, die eine beidseitig abgesetzte Scheibe mit einer herzförmigen Kulissenführung darstellt, fixiert. Die Druckfeder 7 wird durch das auf das Gehäuse 12 gerastete Unterteil 8 gehalten. Die in Fig.2 dargestellte Schaltwippe 17 wird auf einen am Gehäuse 12 angeformten Lagerzapfen 18 geschoben. Mit einem unteren Deckel 10 wird die Öffnung am Unterteil 8 verschlossen und dadurch die Anschlußleitung 11 seitlich weggeführt, so daß sie nicht mit dem Bodenblech 9 in Berührung kommt. Die infrarotdurchlässige Kunststofflinse 2, die eine konventionelle Bikonvexlinse oder eine mit Fresnellinsensegmenten ausgestattete Kunststofflinse ist, wird engsitzend auf das Blechgehäuse des Infrarotsensors 1 gedrückt. Dadurch wird ein Temperaturausgleich zwischen Linse und Sensor ermöglicht. Die Sensorplatine 3 wird in die Abdeckkappe 4 eingesetzt, die Anschlußleitungen 11 werden durch den Schlitten 5 und das Unterteil 8 durchgefädelt und die Abdeckkappe 4 gemeinsam mit der Platine auf dem Schlitten 5 rastend montiert, wobei sich die Platine 3 im Schlitten 5 selbst positioniert. Danach wird der Mikroschalter 15 in das Gehäuse 12 eingerastet. Das so vormontierte System, das im Muldenrahmen zentriert und angeschraubt ist funktioniert wie folgt: Durch Andrücken auf die Abdeckkappe 4 wird das Sensorsystem (Sensordom) entriegelt und fährt nach Wegnahme des Betätigungsdruckes nach oben aus. Dabei wird am Ende des Hubes über eine Anlaufschräge am Schlitten 5 die Schaltwippe 17 um den Lagerzapfen 18 ausgelenkt und dadurch der Mikroschalter 15 geschlossen. Das Schließen des Mikroschalters 15 signalisiert der Elektronik die Einsatzbereitschaft des Systems. Verriegelt wird das Sensorsystem durch nochmaliges Drücken auf die Abdeckkappe 4 bis zum Anschlag und Loslassen. Dabei ist das optische System, das auch ein Spiegelsystem sein kann, so eingestellt, daß auch bei verschiedenen Abständen zwischen Sensor und Kochtopf der gleiche Meßwert erfaßt wird.According to FIGS. 1, 2, an infrared sensor 1, a lens for the infrared sensor 2, a sensor board 3, a cover cap 4, a slide 5, a locking mechanism 6, a compression spring 7, a lower part 8, a base plate 9, a lower cover 10, a connecting line 11, a housing of the sensor unit 12, a hob frame 13, a glass ceramic hob 14, a microswitch 15, a switching plunger of the microswitch 16, a rocker switch 17, a bearing pin 18, a screw point to the trough frame 19, a roughened inside 20 and a hygroscopic pill 21 recognizable. The construction of the infrared sensor functional unit is as follows described. Fig. 1 serves as the basis for the functional description. The carriage 5 is inserted into the housing 12 and by means of the locking mechanism 6, the one disc on both sides with a heart-shaped guide represents, fixed. The compression spring 7 is snapped onto the housing 12 Lower part 8 held. The rocker switch 17 shown in Figure 2 is on a Housing 12 molded bearing pin 18 pushed. With a lower cover 10 the opening on the lower part 8 is closed and thereby the connecting line 11th led away laterally so that it does not come into contact with the bottom plate 9. The Infrared transparent plastic lens 2, which is a conventional biconvex lens or a plastic lens equipped with Fresnel lens segments, is closely fitting on the Pressed sheet metal housing of the infrared sensor 1. This will equalize the temperature between lens and sensor. The sensor board 3 is inserted into the cover cap 4 used, the connecting lines 11 are through the carriage 5 and the lower part 8th threaded through and the cover cap 4 together with the circuit board on the carriage 5 detent mounted, the board 3 positioned itself in the carriage 5. After that the microswitch 15 is snapped into the housing 12. The pre-assembled system that is centered and screwed into the trough frame works as follows: Press on the cover cap 4, the sensor system (sensor dome) is unlocked and extends upwards after the actuation pressure has been removed. It will end of the stroke over a run-up slope on the slide 5, the rocker switch 17 around Bearing pin 18 deflected and thereby the microswitch 15 closed. The Closing the microswitch 15 signals the electronics that the System. The sensor system is locked by pressing the Cover cap 4 as far as it will go and let go. Here is the optical system that can also be a mirror system, set so that even with different Distances between the sensor and the saucepan the same measured value is recorded.

Damit die konstruktive Sensoreinheit fehlerfrei arbeiten kann, muß ausgeschlossen werden, daß die optischen Funktionsanteile mit Wasserdampf beaufschlagt sind. Die konstruktive Sensoreinheit gleichbedeutend mit dem Begriff Infrarotsensordom ist ein vollständig abgedichtetes Gehäuse. Dieses Gehäuse wird aus Kunststoff gespritzt. Der in einer konstruktiven Funktionseinheit integrierte Infrarotsensordom soll mittels einer Kondensatfalle vor einem abkondensierenden Wasserfilm geschützt werden. Dies ist dadurch möglich, daß die Kondensatfalle durch ein möglichst großflächiges rauhes Binnenwandelement am Kunststoffgehäuse des Sensordoms gebildet wird. Eine so gestaltete Innenwand hat eine vergrößerte Oberfläche und muß scharfkantig ausgeführt sein. Man kann davon ausgehen, daß der Wasserdampf vorzugsweise an scharfen Kanten kondensiert. Vorbeugend dazu kann man Maßnahmen ergreifen, daß während der Montage des Infrarotsensordoms möglichst wenig Wasserdampf eingeschlossen wird. Dies ist dadurch sinnfällig, da bei der Abkühlung des Sensordoms an optischen Teilen Wasserdampf niedergeschlagen werden kann. Damit bildet sich optisch gesehen ein Wasserfilm, der die Transmission der Infrarotfilter in die Reflektion der fokusierenden Spiegel bzw. Linsenssysteme effektiv beeinflußt. Als weitere vorteilhafte Maßnahmen gegen Ausbildung von Kondensat kann die Kondensatfalle dadurch verbessert werden, daß die scharfkantig aufgerauhte Innenseite des Infrarotsensordomes mit einer hygroskopischen Chemikalie behandelt ist. Weiterhin kann in Kombination zu der aufgerauhten Innenseite des Sensordoms oder auch als alleinige Maßnahme eine hygroskopische Pille im Sensorgehäuse befindlich sein. Die erfindungsgemäßen Maßnahmen zielen darauf ab, optische Systeme, entweder Linsensysteme oder Spiegel für Infrarotsensortechnik, wasserdampffrei zu halten und damit die optischen Systeme kondensatfrei zu halten. Vorteile der erfindungsgemäßen Lösung dieser Aufgabe bestehen darin, daß im Gegensatz zu bisherigen Wasserdampfauffangmethoden keine die Infrarotoptik verschmutzenden Rückstände entstehen, und die Maßnahme von Anfang an keine Trübungsniederschläge auf die Infrarotoptik bewirkt.So that the constructive sensor unit can work properly, must be excluded be that the optical functional parts are exposed to water vapor. The constructive sensor unit is synonymous with the term infrared sensor dome fully sealed housing. This housing is injection molded from plastic. The infrared sensor dome integrated in a constructive functional unit should be by means of a Protect the condensate trap from a condensing water film. This is possible that the condensate trap by a rough as possible Inner wall element is formed on the plastic housing of the sensor dome. Such a thing designed inner wall has an enlarged surface and must be sharp-edged his. It can be assumed that the water vapor is preferably sharp Edges condensed. To prevent this, measures can be taken that during installation of the infrared sensor dome included as little water vapor as possible becomes. This is sensible because the cooling of the sensor dome on optical Parts of water vapor can be precipitated. This forms optically a water film that focuses the transmission of the infrared filter into the reflection of the Effectively affects mirrors or lens systems. As further advantageous measures This can improve the condensate trap to prevent condensate from forming that the roughened inside of the infrared sensor dome with a hygroscopic chemical is treated. Furthermore, in combination with the roughened inside of the sensor dome or as a sole measure a hygroscopic Pill in the sensor housing. The measures according to the invention aim to use optical systems, either lens systems or mirrors for Infrared sensor technology to keep water vapor free and thus the optical systems keep condensate free. There are advantages of the solution to this problem according to the invention in that, in contrast to previous water vapor collection methods, none residues contaminating the infrared optics arise, and the measure from the beginning causes no haze on the infrared optics.

Claims (5)

  1. Sensor-controlled cooking unit, consisting of a cooking appliance, infrared sensor unit and cooking field, wherein an infrared sensor associated with the sensor-controlled cooking unit is arranged slightly elevated above the cooking field with respect to cooking point, characterised in that the infrared sensor unit integrated in a constructional functional unit and termed infrared sensor dome is protected by means of a condensate trap against a condensing water film.
  2. Sensor-controlled cooking unit according to claim 1, characterised in that the condensate trap has a rough inner side (20) of greatest possible area in the synthetic material housing of the infrared sensor dome.
  3. Sensor-controlled cooking unit according to claim 1, 2, characterised in that the inner side (20) of the infrared sensor dome is constructed to be sharp-edged.
  4. Sensor-controlled cooking unit according to claim 1, characterised in that the sharp-edged, roughened inner side (20) of the infrared sensor dome is treated by a hygroscopic chemical.
  5. Sensor-controlled cooking unit according to claim 1, characterised in that a hygroscopic pellet (21) is disposed in the housing of the infrared sensor unit in combination with the roughened, sharp-edged inner side (20) of the infrared sensor dome or as sole measure.
EP97121079A 1996-12-02 1997-12-01 Sensor controled cooking unit with condensate drain in the constructional functional unit Expired - Lifetime EP0845922B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19649914 1996-12-02
DE19649914A DE19649914A1 (en) 1996-12-02 1996-12-02 Sensor-controlled cooking unit with condensate trap in the design functional unit

Publications (3)

Publication Number Publication Date
EP0845922A2 EP0845922A2 (en) 1998-06-03
EP0845922A3 EP0845922A3 (en) 1998-12-16
EP0845922B1 true EP0845922B1 (en) 2004-10-06

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Application Number Title Priority Date Filing Date
EP97121079A Expired - Lifetime EP0845922B1 (en) 1996-12-02 1997-12-01 Sensor controled cooking unit with condensate drain in the constructional functional unit

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EP (1) EP0845922B1 (en)
DE (2) DE19649914A1 (en)
ES (1) ES2230583T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949601A1 (en) * 1999-10-14 2001-04-19 Bsh Bosch Siemens Hausgeraete Gas cooker
DE102015219571A1 (en) 2015-10-09 2017-04-13 Conti Temic Microelectronic Gmbh Sensor dome assembly
EP3396453A1 (en) * 2017-04-28 2018-10-31 E.G.O. ELEKTRO-GERÄTEBAU GmbH Cooking hob, method for detecting the position of a cooking vessel on such a cooking hob and method for projecting light
DE102018202255B4 (en) 2018-02-14 2022-02-10 E.G.O. Elektro-Gerätebau GmbH Cooktop and method of operating a cooktop
DE102018219741A1 (en) * 2018-11-19 2020-05-20 BSH Hausgeräte GmbH Operation of an induction cooker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072334A (en) * 1980-03-24 1981-09-30 Thorn Domestic Appliances Ltd Temperature responsive apparatus
DE3341234C1 (en) * 1983-11-15 1985-05-15 Kurt Wolf & Co Kg, 7547 Wildbad Arrangement for measuring the temperature in a heating system consisting of a hot plate and a saucepan
DE3538353C1 (en) * 1985-10-29 1986-09-04 Kurt Wolf & Co Kg, 7547 Wildbad Arrangement for measuring the temperature in a heating system consisting of a hot plate and a saucepan
GB9411160D0 (en) * 1994-06-03 1994-07-27 Land Infrared Ltd Improvements relating to radiation thermometers

Also Published As

Publication number Publication date
EP0845922A2 (en) 1998-06-03
DE19649914A1 (en) 1998-06-04
ES2230583T3 (en) 2005-05-01
DE59711994D1 (en) 2004-11-11
EP0845922A3 (en) 1998-12-16

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