DE19705299A1 - Cooking hob safety circuit device - Google Patents

Cooking hob safety circuit device

Info

Publication number
DE19705299A1
DE19705299A1 DE1997105299 DE19705299A DE19705299A1 DE 19705299 A1 DE19705299 A1 DE 19705299A1 DE 1997105299 DE1997105299 DE 1997105299 DE 19705299 A DE19705299 A DE 19705299A DE 19705299 A1 DE19705299 A1 DE 19705299A1
Authority
DE
Germany
Prior art keywords
hob
safety
hotplate
opto
sensor device
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Withdrawn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
DE1997105299
Other languages
German (de)
Inventor
Simon Liedl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1997105299 priority Critical patent/DE19705299A1/en
Publication of DE19705299A1 publication Critical patent/DE19705299A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/05—Heating plates with pan detection means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

The device uses photo-detection circuits to disable the heating units when no cooking utensils are on the hob. The hob unit has a light source (3) and a light detector (4) positioned across each heating plate (5). Interruption of the light by a pan enables the heating plate to be energised. Removal of the pan then disables the heating.

Description

Die Erfindung betrifft die automatische Abschaltung von Elektro­ herdplatten.The invention relates to the automatic shutdown of electrical stove plates.

Es wird häufig vergessen, Elektroherdplatten nach dem Gebrauch abzu­ schalten, wodurch die Gefahr eines Brandes entsteht. Oft sind Be­ nutzer von Elektroherden auch unsicher, ob sie die Herdplatten aus­ schaltet haben, was sie zu häufigen Kontrollen zwingt.It is often forgotten to remove the electric hob after use switch, which creates the risk of fire. Often are Users of electric cookers are also unsure whether to remove the stovetops have switched, which forces them to carry out frequent checks.

Aufgabe dieser Erfindung war deshalb, eine Vorrichtung zu entwickeln, bei der sich Elektroherdplatten automatisch abschalten, wenn sie nicht mehr in Gebrauch sind.The object of this invention was therefore to develop a device where electric hotplates turn off automatically when they are not are more in use.

Die Aufgabe wird nun dadurch gelöst, daß in der Mitte des Elektroher­ des vier Sendedioden angebracht sind und an den Seiten vier Empfänger­ dioden.The task is now solved in that in the middle of the Elektroher The four transmitter diodes are attached and four receivers on the sides diodes.

Beim Kochvorgang wird die jeweilige Verbindung getrennt, die Herdplat­ te kann normal eingeschaltet werden. Nach Beendigung des Kochvorganges und Entfernung des Behälters von der Kochplatte wird die Verbindung geschlossen und dadurch automatisch die Kochplatte abgeschaltet.During the cooking process, the respective connection is separated, the stove top can be switched on normally. At the end of the cooking process and removing the container from the hotplate becomes the connection closed and the hob is automatically switched off.

Es gibt bereits eine Vorrichtung, in weicher die Kochplatten nach dem Kochvorgang etwas nach oben gehen und so eine Unterbrechung des Strom­ kreises zur Folge hat; dieses System kann aber nicht bei Ceranfeldern angewendet werden. Außerdem besteht die Gefahr, daß beim überkochen des Kochgutes diese Mechanik außer Funktion gesetzt wird. There is already a device in which the hot plates after the Cooking process go up a bit and so an interruption of the electricity circle results; however, this system cannot be used with ceramic hobs be applied. There is also a risk of boiling over of the food, this mechanism is deactivated.  

Eine Senderplatine (2) ist mit einer Senderinfrarotdiode (3) in der Mitte des Herdes verbunden. Die Senderinfrarotdiode sendet einen Richtstrahl quer über die jeweilige Herdplatte zur gegenüberliegenden Empfänger IR Diode (4) welche die Meldung an die Empfängerplatine (1) weitergibt.A transmitter board ( 2 ) is connected to a transmitter infrared diode ( 3 ) in the middle of the cooker. The transmitter infrared diode sends a directional beam across the respective hotplate to the opposite receiver IR diode ( 4 ), which forwards the message to the receiver board ( 1 ).

Diese Empfängerplatine unterbricht die Stromzufuhr beim Entfernen des Topfes und gibt den Strom wieder frei, wenn erneut ein Topf aufgesetzt wird.This receiver board cuts the power supply when removing the Pot and releases the current again when a pot is placed again becomes.

Die Automatik tritt aber erst in Funktion, wenn die Herdplatte wie bisher eingeschaltet wurde.However, the automatic only comes into operation when the hob is like has been switched on so far.

Das Aussehen der Dioden kann je nach Design des Herdes variabel ge­ staltet werden.The appearance of the diodes can vary depending on the design of the cooker be designed.

Claims (4)

1. Sicherheitsherdplatte, gekennzeichnet durch folgende Merkmale:
  • - die Herdplatte (5) weist an der Oberseite eine opto-elektronische Sensorvorrichtung auf;
  • - die opto-elektronische Sensorvorrichtung ist so gestaltet und angeordnet, daß ein auf der Herdplatte (5) sich befindliches Kochgeschirr registriert wird;
  • - die opto-elektronische Sensorvorrichtung ist mit einer elektronischen Schaltung versehen, die bei nicht belegter Herdplatte (5) die Stromzufuhr der Herdplatte (5) unterbricht bzw. abschaltet.
1. Safety hob, characterized by the following features:
  • - The hob ( 5 ) has an opto-electronic sensor device on the top;
  • - The opto-electronic sensor device is designed and arranged so that a cookware located on the hotplate ( 5 ) is registered;
  • - the opto-electronic sensor device is provided with an electronic circuit which interrupts the power supply of the stove top (5) with unused deck (5) or off.
2. Sicherheitsherdplatte nach Anspruch 1, dadurch gekennzeichnet, daß die opto-elektronische Sensor­ vorrichtung aus einer Miniaturlichtschranke besteht.2. Safety hotplate according to claim 1, characterized in that the opto-electronic sensor device consists of a miniature light barrier. 3. Sicherheitsherdplatte nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Anordnung der Miniaturlichtschranke auf der Oberseite des Kochfeldes so erfolgt, daß der zwischen Senderdiode (3) und Empfängerdiode (4) verlaufende Lichtstrahl über der Mitte der zugeordneten Herdplatte (5) ver­ läuft.3. Safety hotplate according to claims 1 and 2, characterized in that the arrangement of the miniature light barrier on the top of the hob is such that the light beam extending between the transmitter diode ( 3 ) and receiver diode ( 4 ) ver over the center of the associated hotplate ( 5 ) running. 4. Sicherheitsherdplatte nach den Ansprüchen 1-3, dadurch gekennzeichnet, daß im Bereich der Herd­ plattenunterseite die zugeordnete Senderplatine (2) und Empfängerplatine (1) angeordnet ist.4. Safety hotplate according to claims 1-3, characterized in that the associated transmitter board ( 2 ) and receiver board ( 1 ) is arranged in the area of the stove underside.
DE1997105299 1997-02-12 1997-02-12 Cooking hob safety circuit device Withdrawn DE19705299A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997105299 DE19705299A1 (en) 1997-02-12 1997-02-12 Cooking hob safety circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997105299 DE19705299A1 (en) 1997-02-12 1997-02-12 Cooking hob safety circuit device

Publications (1)

Publication Number Publication Date
DE19705299A1 true DE19705299A1 (en) 1998-08-13

Family

ID=7819996

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997105299 Withdrawn DE19705299A1 (en) 1997-02-12 1997-02-12 Cooking hob safety circuit device

Country Status (1)

Country Link
DE (1) DE19705299A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3533997A1 (en) * 1985-09-24 1987-03-26 Licentia Gmbh Cooking top with a number of cooking points
DE3619762A1 (en) * 1986-06-12 1987-12-23 Licentia Gmbh Pan recognition device
DE9416779U1 (en) * 1994-10-18 1994-12-08 Bosch Siemens Hausgeraete Sensor-controlled glass ceramic hob unit
DE4422354A1 (en) * 1994-06-27 1996-01-04 Bosch Siemens Hausgeraete Infrared controlled cooking unit with sensor just above hotplate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3533997A1 (en) * 1985-09-24 1987-03-26 Licentia Gmbh Cooking top with a number of cooking points
DE3619762A1 (en) * 1986-06-12 1987-12-23 Licentia Gmbh Pan recognition device
DE4422354A1 (en) * 1994-06-27 1996-01-04 Bosch Siemens Hausgeraete Infrared controlled cooking unit with sensor just above hotplate
DE9416779U1 (en) * 1994-10-18 1994-12-08 Bosch Siemens Hausgeraete Sensor-controlled glass ceramic hob unit

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee