EP2174065B1 - Appareil chauffant avec circuit de surveillance de temps - Google Patents

Appareil chauffant avec circuit de surveillance de temps Download PDF

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Publication number
EP2174065B1
EP2174065B1 EP08761215.6A EP08761215A EP2174065B1 EP 2174065 B1 EP2174065 B1 EP 2174065B1 EP 08761215 A EP08761215 A EP 08761215A EP 2174065 B1 EP2174065 B1 EP 2174065B1
Authority
EP
European Patent Office
Prior art keywords
heating
switch
heating device
duration
safety
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
EP08761215.6A
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German (de)
English (en)
Other versions
EP2174065A2 (fr
Inventor
Karl-Richard Bosold
Peter Schuhbaeck
Bernd Stitzl
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
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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL08761215T priority Critical patent/PL2174065T3/pl
Publication of EP2174065A2 publication Critical patent/EP2174065A2/fr
Application granted granted Critical
Publication of EP2174065B1 publication Critical patent/EP2174065B1/fr
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Anticipated expiration legal-status Critical

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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
    • 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
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • 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
    • 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

Definitions

  • the invention relates to a heater with a plurality of heating / hobs, the respective heat source for safety reasons after activation by means of a timer switching device is automatically switched off after a predetermined heating time.
  • a method for preventing the unintentional and therefore undesired heating operation of an electric range ( DE 37 37 712 A1 ), in which after switching on a heat source of the electric range and after a predetermined, uninterrupted by another circuit of one or more heat sources, an automatic shut-off takes place, and after the predetermined time since the last circuit of a heat source is also an automatic shut-off ,
  • an automatic shut-off takes place, and after the predetermined time since the last circuit of a heat source is also an automatic shut-off
  • the heater a heating time until the automatic shutdown of the heating energy of one to 10 hours firmly impressed , ie predetermined.
  • the time switching device initially reset to zero is again set to a safety heating duration corresponding to the selected power level.
  • DE 38 15 984 A1 discloses a safety circuit for an electric cooker and allows the automatic shutdown of the cooker when one or more cooking zones of the cooker are in operation for more than a predetermined time.
  • one or more counters are provided which begin to count to zero after switching on one of the power controllers after resetting and switch off the oven after reaching the preset counter reading if the corresponding power controller has not previously been set to zero.
  • DE 199 59 114 A1 discloses a method for monitoring and switching off hotplates on electric stoves.
  • a power-on limit is a Supervision of every single hotplate guaranteed.
  • the limitation period for the cooking zones can therefore be chosen to be short in time, because in a change of setting on a control knob of the stove from a monitoring by a person can be assumed. Now the monitoring time begins again. Through this constellation, the duty cycle can be reduced to a time that protects pots, pans or the stove itself meaningful, without affecting the cooking process negative. If the specified maximum switch-on duration is exceeded, a forced switch-off of individual hotplates or of the entire appliance occurs. Warning signals indicate the end of the allowed switch-on duration and the forced switch-off that has occurred.
  • US 6,140,620 A discloses an apparatus for disconnecting an electrical device or component thereof from a source of electricity, including circuitry that connects the device or a component thereof to a power source via a relay or other component to open the circuit; and a timer circuit connected to the relay.
  • the timer circuit includes a processor for setting the timer circuit and a manually operated switch in communication with the processor. The timer circuit is activated for a predetermined time increment by closing the switch, and the relay is closed while the timer circuit is activated. When the switch is closed again while the timer circuit is activated, an additional time step is added to the activation period.
  • CA 2 498 227 A1 discloses a safety circuit interposed between a heater and a power supply, which disconnects a connection between the heater and the power supply when a predetermined period of time has elapsed after activation of the safety circuit. By operating the safety circuit before the expiration of the predetermined period of time, this period can be extended.
  • the safety circuit is operated via a remote control.
  • the present invention is based on the object to provide a heater of the type mentioned, which is suitable without special expertise or without special attention of the device user to a significant Improvement of the safety issue with regard to the limitation of heating time while achieving a high degree of user-friendliness.
  • the timer is set to a predetermined short rule heating time and dependent deactivation of the heat source, and preferably, the predetermined control heating time by manual operation to another safety heating period variable.
  • the user is given a security-determined, short rule heating duration of between about 10 minutes to 1 hour, in particular in the range of 30 minutes, and proposed automatically executed without further action and, if necessary, can only be changed by a deliberately performed manipulation.
  • the heater has a plurality of heating / cooking areas, the respective heat source for safety reasons by switching means of a - respective or common - time switching device automatically switched off after a predetermined heating time, with the circuit - in particular a switch, but also a switch - a any of the heat sources, the timing device for all heat sources is set equal to the predetermined short heating period and a dependent simultaneous shutdown of all heat sources.
  • This is a shutdown time preferably always visible and thus shows at a glance when the device is turned off.
  • the device can be made simpler, since only one timer is needed for all heat sources.
  • a button is provided by the operation of the rule heating duration is automatically extended by a simple operation only by a predetermined value of the same for all heating / cooking safety heating duration.
  • an acoustic and / or an optical signal generator is activated within a predetermined period of time before the end of the control / safety heating period.
  • a display device for the display of the predetermined, or changed control /bocholicdauer is provided.
  • the type of circuit is not limited and may include any circuit on the heater or only defined switching options.
  • the respective criz2020 be activated or adjusted by any circuit of the hotplate or even the heater except a shutdown of the hob or the heater. It is assumed that an operation of the heater is performed by an attentive operator who would recognize an unintentionally turned on cooking and automatically turn off.
  • the turmeric2020 a cooking area is set only by switching on and / or switching this hotplate and / or by pressing an operator to set this Regelutzdauer.
  • the Regel2020dauer a cooking point is also set by switching on other hobs or set to the original value, if the remaining heating time is below the standard heating time. There are also other switching options conceivable, which are not detailed here for reasons of clarity.
  • the setting of the common safety heating period can also be activated or set here, for example, by any circuit of the hotplate or the heater except a shutdown of the hob or the heater.
  • the Regelterrorismdauer a cooking only by switching on and / or Switching an arbitrary hotplate and / or be set by an operator control to set this Regelterrorismdauer, especially if the remaining heating time is below the standard heating time.
  • the Regelterrorismdauer a cooking place is set only by switching on a first active cooking or set to the original value and not changed by switching more hotplates. There are also other switching options conceivable, which are not detailed here for reasons of clarity.
  • a preferably change of the predetermined control heating time requires a purposeful manipulation of the control unit of the heater.
  • the standard heating time, d. h., The aforementioned default value is clearly displayed in the display of the heater, and thus the user is forced to make a desired change in the displayed control heating period on the control unit, a tampering or not.
  • control heating duration for all operating modes and / or heating levels of the heater is the same, with a short rule heating time of about 10 minutes to 1 hour, especially in the range of 30 minutes, as a guide seems appropriate. Furthermore, it is advantageous for safety reasons if the time switching device is set to the same safety heating duration for all heating stages of the at least one heating hob.
  • inventive method is applicable to heaters of different design and determination, as in hobs, ovens, grills and the like.
  • the device has an operating element for changing the standard heating duration.
  • control heating duration is the same for all operating modes of the heater and is displayed perceptibly on the heater. The same applies not only to the device operating modes in the form of power levels, but also for the heating, z. B. in the form of several hotplates of a hob.
  • a change in the control or safety heating time down (decrement) or above (increment) can be simplified in terms of operation by providing an operating element with which the control heating time is automatically triggered by a simple switch actuation , in particular by tapping a button, z.
  • a touch-sensitive sensor button to a predetermined value changeable, preferably extendable is. It is also the adjustment of the switch-off by means of other control elements, z. Turning knob, increment / '+' key and decrement / '-' key, possible, possibly with different time periods.
  • the operating element comprises a switch, in particular a button, by the actuation of which the safety heating duration can only be increased by the predetermined value.
  • a practical embodiment may be such that the user must press a key every 10 minutes (from a preferred range of about 10 minutes to about 30 minutes) after the end of the control or safety heating time, otherwise the hob automatically switches off (principle 'Dead man's switch ").
  • the user is prompted by a beep and / or an optical signal to press a (eg., Any) button. If this is not the case, the cooking zones are switched off.
  • the time should always be counted only after the last operation on the hob, as each operation shows that a person is present on the device.
  • the timer is set to the predetermined short heating period and a dependent shutdown of all heat sources.
  • the arbitrary circuit may be an activation of a hotplate, or switching a hotplate, z. As an adjustment of the cooking level, or other operation for operating the heater, z. B. an operation of a menu or lighting button, or an operation of a dedicated button or buttons, etc.
  • the particular circuit may be an activation of a hotplate or the actuation of a special "snooze" button, e.g. As a 'timer' button. Switching on another cooking zone can reset the standard heating time to its original value (especially if the remaining heating time is shorter than the standard heating time), but alternatively the remaining heating time will not be changed.
  • the above flow chart includes the actuation (in particular a switch-on) of only one hotplate.
  • actuation in particular a switch-on
  • the same procedure is carried out for each cooking zone, with only one timer (not shown) for all cooking zones being present here. Therefore, an actuation of a hotplate, the shutdown time for the other - possibly set previously - cooking units reset ('override').
  • the above procedure may be followed each time a hotplate or even the cooking appliance is operated (except for the switch-off) or only during certain operations such as switching on a hotplate, adjusting a hotplate parameter (eg a heat setting) and an actuation of the operating element of the time switching device, or as only when switching on a cooking position and an operation of the operating element of the timer device.
  • the timer can be designed so that the actuation of other hotplates the already activated shutdown time (activated by switching on the first hotplate) is not changed.
  • the turn-off time is then only by a purposeful operation of the controls 12, 14,15 (see FIG. 2 ) of the timer.
  • FIG. 2 illustrate the characters 13, the position of the example in the four cooking zones of a hob, each of which the display elements 10 for the set cooking levels and the Setting members 9, z. B. are assigned in the form of sensor buttons for selecting the cooking levels.
  • the control element 12, 14, 15 for the automatic shutdown of the cooking zones over the safety heating period comprises three sensor buttons 12, 14, 15, (eg with a capacitive, infrared-sensoric, piezoelectric element), by their repeated operation, the safety heating time a corresponding multiple of the predetermined value is variable, preferably extendable, which is displayed in the associated display 11.
  • the turn-off time can be incremented by means of an increment / '+' key 14 and decremented by means of a decrement / '-' key 15, e.g. B. by tapping the keys 14, 15 each by a further fixed value, for.
  • the turn-off time is only increased, which - depending on the device design - the decrement button 15 can be omitted.
  • the increment / decrement times may also include other values, e.g. Example, a range of 1 min to the rule heating time, in particular a range of 1 to 30 min.
  • the safety heating duration can only be extended by a predetermined value (deadman circuit), wherein within a predetermined signaling interval, in particular a length of approx. one minute, before the end of the safety heating period an acoustic and / or optical signal is output.
  • a predetermined value in particular a length of approx. one minute
  • the increment and decrement keys 14, 15 are omitted for setting thebocholic and / or optical signal is output.
  • extension of the safety heating duration comprises 10 minutes to 30 minutes, in particular 10 minutes.
  • the deadman circuit it may also be advantageous if they are set to their maximum value with each actuation of the heater becomes. Particularly advantageous is an embodiment in which an extension of theandterrorismdauer only by means of the timer button 12 is feasible
  • the hotplates can also be switched off manually.
  • an operator may preferentially switch the control or safety heating duration function on or off, for. B. via a basic function menu.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Food Science & Technology (AREA)
  • Electric Stoves And Ranges (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)

Claims (8)

  1. Appareil chauffant avec plusieurs foyers de chauffe/cuisson, dont la source de chaleur respective est, pour des raisons de sécurité, automatiquement mise hors circuit après activation au moyen d'un dispositif de temporisation, après écoulement d'une durée de chauffe déterminée au préalable, dans lequel
    - une commutation de l'au moins une source de chaleur permet de régler le dispositif de temporisation selon une durée de chauffe normée courte déterminée au préalable située entre environ 10 minutes et 1 heure et une mise hors circuit de la source de chaleur en fonction de celle-ci,
    - la commutation d'une source de chaleur fait passer le dispositif de temporisation sur la durée de chauffe normée courte déterminée au préalable et une mise hors circuit de l'ensemble des sources de chaleur en fonction de celle-ci,
    caractérisé en ce que
    - un bouton-poussoir (12, 14, 15) est prévu, lequel permet de prolonger automatiquement par un actionnement simple la durée de chauffe normée uniquement d'une valeur déterminée au préalable d'une durée de chauffe de sécurité identique pour l'ensemble des foyers de chauffe/cuisson,
    - un générateur de signal acoustique et/ou optique est activé pendant une durée déterminée au préalable avant l'achèvement de la durée de chauffe normée/de sécurité et
    - un organe d'affichage (11) est prévu pour l'affichage de la durée de chauffe normée/de sécurité déterminée au préalable resp. modifiée.
  2. Appareil chauffant selon la revendication 1, caractérisé en ce que la durée de chauffe normée est identique pour l'ensemble des modes de fonctionnement et / ou niveaux de chauffe de l'appareil chauffant et s'affiche de façon perceptible sur l'appareil chauffant.
  3. Appareil chauffant selon la revendication 2, caractérisé en ce que la durée de chauffe normée atteint environ 30 minutes.
  4. Appareil chauffant selon l'une des revendications précédentes, caractérisé en ce que la modification de la durée de chauffe de sécurité peut se déplacer par un actionnement unique d'un organe de commande (12, 14, 15) dans une plage entre 1 min et la durée de chauffe normée, de préférence entre 1 min et 15 min, encore plus préférentiellement entre 5 min et 10 min.
  5. Appareil chauffant selon l'une des revendications précédentes, caractérisé en ce qu'une quelconque commutation de l'appareil en dehors d'une mise hors circuit d'un foyer de chauffe/cuisson ou de l'appareil chauffant fait passer le dispositif de temporisation sur la durée de chauffe normée courte déterminée au préalable et une mise hors circuit de l'ensemble des sources de chaleur en fonction de celle-ci.
  6. Appareil chauffant selon l'une des revendications 1 à 4, caractérisé en ce qu'une mise en circuit d'un foyer de cuisson ou d'un commutateur spécialement prévu à cet effet fait passer le dispositif de temporisation sur la durée de chauffe normée courte déterminée au préalable et une mise hors circuit de l'ensemble des sources de chaleur en fonction de celle-ci.
  7. Appareil chauffant selon la revendication 6, caractérisé en ce que seule la première mise en circuit d'un foyer de cuisson ou d'un commutateur spécialement prévu à cet effet fait passer le dispositif de temporisation sur la durée de chauffe normée courte déterminée au préalable et une mise hors circuit de l'ensemble des sources de chaleur en fonction de celle-ci.
  8. Appareil chauffant selon l'une des revendications précédentes, caractérisé en ce que l'appareil chauffant est une cuisinière.
EP08761215.6A 2007-06-27 2008-06-19 Appareil chauffant avec circuit de surveillance de temps Active EP2174065B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08761215T PL2174065T3 (pl) 2007-06-27 2008-06-19 Urządzenie grzewcze z czasowym urządzeniem przełączającym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007029695A DE102007029695A1 (de) 2007-06-27 2007-06-27 Verfahren zur Verhinderung des unbeabsichtigten Betriebes eines Heizgerätes
PCT/EP2008/057778 WO2009000740A2 (fr) 2007-06-27 2008-06-19 Procédé permettant d'éviter le fonctionnement inopiné d'un appareil chauffant

Publications (2)

Publication Number Publication Date
EP2174065A2 EP2174065A2 (fr) 2010-04-14
EP2174065B1 true EP2174065B1 (fr) 2019-02-13

Family

ID=39918498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08761215.6A Active EP2174065B1 (fr) 2007-06-27 2008-06-19 Appareil chauffant avec circuit de surveillance de temps

Country Status (6)

Country Link
EP (1) EP2174065B1 (fr)
DE (1) DE102007029695A1 (fr)
ES (1) ES2714556T3 (fr)
PL (1) PL2174065T3 (fr)
TR (1) TR201902941T4 (fr)
WO (1) WO2009000740A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI428545B (zh) * 2010-10-01 2014-03-01 Yu Chieh Lin 防止燒乾之爐具及其方法
JP2012092069A (ja) * 2010-10-28 2012-05-17 Nof Corp エストロゲン様作用剤および皮膚外用剤
EP2587162A1 (fr) 2011-10-27 2013-05-01 Electrolux Home Products Corporation N.V. Procédé pour contrôler la mise hors tension automatique d'un élément de chauffage d'un appareil domestique
EP2709421B1 (fr) * 2012-09-12 2015-04-22 BSH Hausgeräte GmbH Système de sécurité pour cuisinière électrique
EP2860460B1 (fr) * 2013-10-14 2017-12-13 MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG Procédé de fonctionnement d'un appareil de cuisson, notamment d'un four à air chaud, d'un appareil de cuisson à la vapeur ou d'un appareil de cuisson à la vapeur combiné équipé d'une modification de la durée de cuisson
DE102021213416A1 (de) 2021-11-29 2023-06-01 BSH Hausgeräte GmbH Verfahren zum Betreiben eines Gargeräts, sowie Gargerät

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WO1998028944A1 (fr) * 1996-12-20 1998-07-02 Jozef Rak Dispositif de prevention d'incendie pour cuisiniere electrique
CA2498227A1 (fr) * 2005-02-21 2006-08-21 Pressenk Instruments Inc. Dispositif de securite contre les risques d'incendie pour appareils electromenagers

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JPH05332559A (ja) * 1992-06-03 1993-12-14 Toshiba Corp 加熱調理器
DE29613008U1 (de) * 1996-07-26 1996-11-14 Porschitz Harald Sicherheitseinrichtung für Elektro-Herde
US6140620A (en) * 1999-03-30 2000-10-31 Aldridge; James E. Appliance timer
DE29906342U1 (de) * 1999-04-09 1999-07-08 Reyl Gerät zur automatischen Abschaltung von elektrischen Haushaltsgeräten
DE19959114A1 (de) * 1999-12-08 2001-06-13 Juergen Reichert Verfahren und Vorrichtung zur Überwachung und Abschaltung von Kochplatten an elektrischen Kochherden
DE10256464B4 (de) * 2002-12-03 2013-10-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Steuerung eines elektrischen Geräts sowie Gerätesteuerung für elektrische Geräte

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
WO1998028944A1 (fr) * 1996-12-20 1998-07-02 Jozef Rak Dispositif de prevention d'incendie pour cuisiniere electrique
CA2498227A1 (fr) * 2005-02-21 2006-08-21 Pressenk Instruments Inc. Dispositif de securite contre les risques d'incendie pour appareils electromenagers

Also Published As

Publication number Publication date
WO2009000740A3 (fr) 2009-11-26
EP2174065A2 (fr) 2010-04-14
DE102007029695A1 (de) 2009-01-08
TR201902941T4 (tr) 2019-03-21
PL2174065T3 (pl) 2019-08-30
ES2714556T3 (es) 2019-05-29
WO2009000740A2 (fr) 2008-12-31

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