EP1255420A2 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
EP1255420A2
EP1255420A2 EP02007843A EP02007843A EP1255420A2 EP 1255420 A2 EP1255420 A2 EP 1255420A2 EP 02007843 A EP02007843 A EP 02007843A EP 02007843 A EP02007843 A EP 02007843A EP 1255420 A2 EP1255420 A2 EP 1255420A2
Authority
EP
European Patent Office
Prior art keywords
residual heat
mains voltage
counter
memory
heat indicator
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.)
Granted
Application number
EP02007843A
Other languages
German (de)
English (en)
Other versions
EP1255420A3 (fr
EP1255420B1 (fr
Inventor
Ralf Schneider
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 EP1255420A2 publication Critical patent/EP1255420A2/fr
Publication of EP1255420A3 publication Critical patent/EP1255420A3/fr
Application granted granted Critical
Publication of EP1255420B1 publication Critical patent/EP1255420B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 present invention relates to a display device, in particular a Residual heat indicator of an electrical cooking device according to the features of independent claims.
  • a network interruption or a power failure is also taken into account by the residual heat indicator, a mains voltage detector is provided, which concerns the Mains voltage detected on the cooking appliance. After a mains voltage interruption, the Residual heat warning device a special warning signal that on a indicates previous power failure.
  • the present invention has for its object a residual heat warning device to provide for a cooking device, which also at Mains voltage interruptions a reliable indication of the residual heat of a Hob allows.
  • This electrical cooking device has the advantage of being reliable Residual heat display even after a previous mains voltage interruption, e.g. due to a power failure. This can differ from known ones Residual heat indicators in almost all cases reliably before a touch contact hot hobs are warned by optical and / or acoustic means.
  • An embodiment of the invention provides that at least two Meter readings are stored as long as the meter reading is greater than zero, which is the advantage is connected in this way a more reliable estimate of the still remaining heat duration is enabled.
  • a key for manual shutdown of the power failure warning signal of the residual heat indicator provided what is the advantage of a manual correction of the possible at any time Has residual heat indicator. For example, before switching on a hob again first the residual heat display to be reset after switching off the The display is activated again for a certain period of time by means of the counter to let.
  • the Residual heat indicator after an interruption in the mains voltage is an optical and / or an can output acoustic signal, which is the advantage of a conspicuous signaling of Residual heat is associated, which can ensure a high level of attention.
  • a method for operating a residual heat indicator electrical cooking device involves detecting the switched-on state of the Cooking appliance, the signaling of a residual heat warning signal via the residual heat display, as long as the cooking appliance is connected to the mains voltage and the generation of a Delay interval by means of a counter to the residual heat after the Switching off the cooking appliance connected to the mains voltage with a delay. It is further provided that the cooking device has a mains voltage detector that the Line voltage presence detected on the cooking appliance.
  • the procedure also provides that information is stored in a memory as long as the counter reading is greater than zero and that after a mains voltage interruption, the residual heat indicator in Depending on the queried memory content remains activated for a certain period of time, if the information in the memory contains a counter value greater than zero.
  • This method according to the invention has the advantage of being reliable Residual heat display even after a previous mains voltage interruption, which in almost all cases occurs reliably before touching the hot hobs can be warned by optical and / or acoustic means.
  • a variant of the method according to the invention provides that in the memory at least two counter readings are stored as long as the counter reading is greater than zero. This is the advantage of a more reliable estimate of the remaining ones Residual heat duration connected.
  • the Values of the counter are saved at regular intervals and after a Mains voltage interruption for delayed switching off of the residual heat indicator and / or used to output a power failure warning signal.
  • This The embodiment according to the invention has the advantage of being very reliable Determination of the residual heat duration based on the stored counter values, resulting in a relatively exact correspondence of the residual heat indicator with the actual duration, during which the cooktop is hot.
  • Another embodiment of the method according to the invention provides that in an EEPROM of the memory a residual heat flag two different states can assume and that after the remaining heat duration the residual heat display deactivated and the residual heat flag is cleared.
  • This can be a very inexpensive and at the same time, very reliable protective function can be represented, even after a Mains voltage interruption can provide a residual heat indicator.
  • a variant of the method according to the invention provides that after a Interruption of the mains voltage a query of the residual heat flag is provided that a preassignment of the counter with a meaningful value is provided and that after the residual heat flag is deleted at the end of the residual heat duration.
  • the pre-assignment with an empirically determined meaningful default value of the counter ensures a better match of the actual residual heat duration and the display duration of the Residual heat indicator.
  • a Storage of the meter reading at regular intervals in the EEPROM intended.
  • the Storage value of the EEPROM is provided, after which the counter is reinitialized based on the memory value of the EEPROM.
  • the residual heat indicator after a Mains voltage interruption a flashing signal, which gives the advantage of a Increasing the signal effect due to the optically conspicuous signal goes hand in hand.
  • the residual heat indicator an acoustic signal after a mains voltage interruption. That is the advantage a further increase in the signal effect for an operator.
  • an embodiment according to the invention provides that after a the residual heat indicator is switched off when the cooking appliance is switched on again. This has the advantage that this enables the counter to be reinitialized in order to Residual heat indicator after switching off the cooking device again reliably To display residual heat. In addition, the residual heat indicator will appear again switched on device is usually no longer required.
  • FIG 1 shows a schematic plan view of a hob 2 of a cooking appliance or one Cooker with four cooking zones 4.
  • the hob 2 is preferably a known one Glass ceramic cooktop with a flat surface.
  • Below the glass ceramic plate of the Hob 2 are four known controllable heating elements arranged in the shown representation are not visible.
  • Each cooking zone 4 is a residual heat indicator 6 assigned, for example in the form of a arranged below the glass ceramic plate Led.
  • Heater elements 4 are via a known control unit 14 of the cooker according to that of a Operator made known adjustment elements of the cooker Power specifications can be switched on or their heating power can be regulated.
  • the control unit 14 can be, for example, power switching electronics with a microprocessor control.
  • a counter 8 is provided and coupled to the control unit 14 and the residual heat indicator 6.
  • the counter 8 be part of the microprocessor control.
  • Mains voltage detector 10 is provided in the cooking appliance, which detects the mains 12 Mains voltage applied to hob 2 or internal device derivatives derived therefrom Tensions recorded. This also makes it possible to detect whether the cooking appliance is on Mains voltage is present.
  • the mains voltage detector 10 is also with the Residual heat indicator 6, the counter 8 and the control unit 14 coupled.
  • On Voltage rise from zero to operating voltage can typically be in two Situations arise; when installing the cooking appliance for the first time when connecting the Network connection 12 to the power grid and when restoring power after an interruption in the mains voltage, for example due to a power failure. Becomes a If the mains voltage is detected on the cooking appliance, a power failure warning signal is generated triggered.
  • the residual heat indicator 6 shows depending on the desired information content for the user different display contents. It makes sense that there is already residual heat switched off but still hot cooking zone 4 by an uninterrupted glowing optical signal shown. That as long as the residual heat indicator 6 is on Cooking zone 4 is still hot and should not be touched. A previous one Power failure, on the other hand, can be signaled by a regularly intermittent display be ensured, which ensures increased operator attention can.
  • the flashing display shows the operator that the actual residual heat duration may differ from the duration of the flashing display can, because the counter 8 possibly to a meaningful value, but not to one of the value corresponding to the actual residual heat duration.
  • buttons can also be used to switch off the power failure warning signal provided to be made possible. Pressing this button can reset the Cause residual heat indicator 6.
  • the counter 8 can be used for each Cooking process of a cooking zone 4 depending on the set cooking level up to a maximum value can be incremented. After a given time a Memory cell in the EEPROM of counter 8, a so-called residual heat flag, set. To when the cooking zone 4 is switched off, the counter 8 is decremented. As long as the counter value is greater than zero, the residual heat indicator 6 is activated. After the expiry of the Residual heat duration, the residual heat indicator 6 is deactivated and the residual heat flag in EEPROM deleted. According to one detected by the mains voltage detector 10 Mains voltage interruption, the residual heat flag is queried in the EEPROM.
  • the current status of Counter 8 are stored in the EEPROM at regular intervals. This Variant is preferably considered if the internal or external used EEPROM is suitable for a high number of write accesses. After a Mains voltage interruption can counter 8 with the last one in the EEPROM stored value. If the counter reading is greater than zero, the Residual heat indicator 6 (flashing) controlled and the counter 8 decremented until the calculated residual heat duration ends.
  • the residual heat duration estimated in this way corresponds relatively exactly to the residual heat actually present in cooking zone 4.
  • the flashing display and / or the additional acoustic signal indicates that Operator signals that the display time is not necessarily the actual one Residual heat duration corresponds.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
  • Control Of Resistance Heating (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Vehicle Body Suspensions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Baking, Grill, Roasting (AREA)
EP02007843A 2001-05-03 2002-04-08 Dispositif d'affichage Expired - Lifetime EP1255420B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10121534 2001-05-03
DE10121534A DE10121534A1 (de) 2001-05-03 2001-05-03 Anzeigevorrichtung

Publications (3)

Publication Number Publication Date
EP1255420A2 true EP1255420A2 (fr) 2002-11-06
EP1255420A3 EP1255420A3 (fr) 2005-04-27
EP1255420B1 EP1255420B1 (fr) 2009-09-16

Family

ID=7683504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007843A Expired - Lifetime EP1255420B1 (fr) 2001-05-03 2002-04-08 Dispositif d'affichage

Country Status (5)

Country Link
US (1) US6797297B2 (fr)
EP (1) EP1255420B1 (fr)
AT (1) ATE443425T1 (fr)
DE (2) DE10121534A1 (fr)
ES (1) ES2331603T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031714A1 (fr) * 2006-09-13 2008-03-20 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de cuisson
ES2363698A1 (es) * 2009-04-29 2011-08-11 Bsh Electrodomesticos España S.A. Aparato doméstico con una pantalla con medios de introducción por contacto.
EP2664855A3 (fr) * 2012-05-17 2014-06-04 Whirpool Corporation Appareil de cuisson et procédé associé

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100851460B1 (ko) * 2004-05-10 2008-08-08 가부시끼가이샤 도시바 가열 조리기
US7069090B2 (en) * 2004-08-02 2006-06-27 E.G.O. North America, Inc. Systems and methods for providing variable output feedback to a user of a household appliance
US7554060B2 (en) * 2006-09-29 2009-06-30 England Raymond O Displaying cooking-related information
DE102009001740B4 (de) * 2009-03-23 2013-10-31 BSH Bosch und Siemens Hausgeräte GmbH Hausgerätvorrichtung
DE102009035758A1 (de) * 2009-07-27 2011-02-03 E.G.O. Elektro-Gerätebau GmbH Bedieneinheit
DE102010002882A1 (de) 2010-03-15 2011-09-15 BSH Bosch und Siemens Hausgeräte GmbH Glaskeramik-Kochfeld
ES2404339B1 (es) * 2011-03-23 2014-05-21 BSH Electrodomésticos España S.A. Procedimiento para ajustar una corriente de conexión de un aparato doméstico, y aparato doméstico, en especial, campo de cocción, con una unidad de control para ejecutar el procedimiento
PL399809A1 (pl) 2012-07-05 2014-01-07 Diehl Ako Stiftung & Co. Kg Sposób i uklad gradientowego wskazywania ciepla resztkowego plyt kuchennych
US9119248B2 (en) * 2012-12-18 2015-08-25 General Electric Company Method for controlling a light emitting device in a cooktop appliance
US10024545B2 (en) * 2014-04-17 2018-07-17 Whirlpool Corporation Power management for home appliances
CN112524648A (zh) * 2019-09-18 2021-03-19 博西华电器（江苏）有限公司 用于灶具的余热提示方法及灶具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033499A2 (fr) * 1980-01-31 1981-08-12 E.G.O. Regeltechnik GmbH Procédé et dispositif pour l'indication du degré de chauffe
DE19925228A1 (de) * 1999-06-01 2000-12-07 Bsh Bosch Siemens Hausgeraete Gargerät mit Restwärmeanzeige und Verfahren zum Betrieb der Restwärmeanzeige

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118414C2 (de) * 1981-05-09 1984-02-23 Diehl Gmbh & Co, 8500 Nuernberg Restwärmeanzeige für einen elektrisch beheizbaren Herd
FR2650669B1 (fr) * 1989-08-04 1993-10-29 Equipement Menager Cie Europ Dispositif de mesure de temperature pour appareil de cuisson a induction et appareil comportant un tel dispositif
DE4004309A1 (de) * 1990-02-13 1991-08-14 Ego Elektro Blanc & Fischer Anzeigeeinrichtung fuer kochgeraete
IT1296492B1 (it) * 1997-11-21 1999-06-25 Whirlpool Co Sistema per indicare il calore residuo delle griglie di apparecchi domestici di cottura a gas
DE19923995A1 (de) * 1999-05-26 2000-11-30 Bsh Bosch Siemens Hausgeraete Haushaltsgerät mit Uhreinheit und Verfahren zum Betreiben der Uhreinheit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033499A2 (fr) * 1980-01-31 1981-08-12 E.G.O. Regeltechnik GmbH Procédé et dispositif pour l'indication du degré de chauffe
DE19925228A1 (de) * 1999-06-01 2000-12-07 Bsh Bosch Siemens Hausgeraete Gargerät mit Restwärmeanzeige und Verfahren zum Betrieb der Restwärmeanzeige

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031714A1 (fr) * 2006-09-13 2008-03-20 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de cuisson
ES2363698A1 (es) * 2009-04-29 2011-08-11 Bsh Electrodomesticos España S.A. Aparato doméstico con una pantalla con medios de introducción por contacto.
EP2664855A3 (fr) * 2012-05-17 2014-06-04 Whirpool Corporation Appareil de cuisson et procédé associé
US9006614B2 (en) 2012-05-17 2015-04-14 Whirlpool Corporation Cooking appliance and method for same

Also Published As

Publication number Publication date
ES2331603T3 (es) 2010-01-11
EP1255420A3 (fr) 2005-04-27
US6797297B2 (en) 2004-09-28
DE50213842D1 (de) 2009-10-29
ATE443425T1 (de) 2009-10-15
US20020189464A1 (en) 2002-12-19
DE10121534A1 (de) 2002-11-07
EP1255420B1 (fr) 2009-09-16

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