EP0385318A2 - Microwave houshold appliance - Google Patents

Microwave houshold appliance Download PDF

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Publication number
EP0385318A2
EP0385318A2 EP19900103597 EP90103597A EP0385318A2 EP 0385318 A2 EP0385318 A2 EP 0385318A2 EP 19900103597 EP19900103597 EP 19900103597 EP 90103597 A EP90103597 A EP 90103597A EP 0385318 A2 EP0385318 A2 EP 0385318A2
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EP
European Patent Office
Prior art keywords
microwave
microwave heating
oven
household appliance
heating 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.)
Ceased
Application number
EP19900103597
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German (de)
French (fr)
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EP0385318A3 (en
Inventor
Julius Dipl.-Ing. Husslein
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
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Individual
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Publication of EP0385318A2 publication Critical patent/EP0385318A2/en
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    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating

Definitions

  • the invention relates to a microwave household appliance for roasting, baking and cooking processes with a microwave heating device and with a thermal heating device, both devices being operable separately and in combination.
  • the roasting, baking and cooking of food using microwave energy can lead to fluctuations in the degree of cooking which are detrimental to the overall result of the cooking process.
  • the necessary control information for the microcomputer which must be entered into the microcomputer in order to control or regulate the cooking time, cooking temperature, power level, is usually realized via key or switch fields, program cards or other recording media.
  • the cooking programs that can be called up in this way are described, for example, in US Pat. No. 4,317,976.
  • a programmable microwave oven with respect to heating conditions is disclosed, for example, in US Pat. No. 4,011,428.
  • the heating or cooking program currently being processed by the microwave oven can partly be followed on a display part.
  • the object of the invention is to selectively provide a microwave additional power coupled with the oven operation for a microwave household appliance, as a result of which roasting, baking and cooking times can be shortened without the housewife having to see cookbook software.
  • the microwave heating device as a solution to this problem is characterized in that a control device assigned to the microwave heating device is provided which can be actuated as a function of a preselected oven function and / or oven temperature and that a microwave heating power corresponding to the preselected oven function can be switched on, compared to a time To, which corresponds to the roasting, baking or cooking time for conventional stove operation, brings about a shortening factor specific to the food to be cooked.
  • the microwave heating device additionally provides a further device for oven operation plus a microwave, a microwave power being switched on for the preselected oven heaters or oven functions.
  • the time-controlled setting for the microwave can be freely combined with the oven functions.
  • a built-in cooker 1 with integrated microwave heating which shows a control panel 2 and a cooking space 3 with a food 4, can be seen in FIG. 1.
  • the desired microwave power is selected using a button set for four microwave power levels.
  • the microwave power levels are time-controlled, which can be achieved with the help of a clock module, for example.
  • the microwave power can be called up as a solo and combination heater with conventional oven heating, whereby the Cooking-specific exposure time of the microwave power can generally be found in a special cookbook software.
  • a control panel section 5 consisting of an automatic selection 6, a microwave power level selection 7 and an integration button 8, is shown.
  • the control that can be selected by the integration button 8 is intended to be able to automatically switch on a microwave power for the thermal oven operation.
  • the control selected via the integration button 8 switches on a microwave heating power corresponding to the preselected oven function depending on a preselected oven function and / or oven temperature.
  • a microwave activation power of 90W is preferably used for a first integration key position.
  • a second integration button position switches on 180W microwave power.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

A microwave household appliance for roasting, baking and simmering processes, having a microwave heating device and having a thermal heating device, both devices being capable of operation separately and in combination, and there being provided a control device which is allocated to the microwave heating device, can be selected via input elements and switches in a microwave heating power corresponding to the preselected baking oven function, depending on a preselected oven function and/or oven temperature. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Mikrowellen-Haushaltgerät für Brat-, Back- und Garungsvorgäng mit einer Mikrowellen-Heizeinrichtung und mit einer thermischen Heizeinrichtung, wobei beide Einrichtungen separat und in Kombination betreibbar sind.The invention relates to a microwave household appliance for roasting, baking and cooking processes with a microwave heating device and with a thermal heating device, both devices being operable separately and in combination.

Das Braten, Backen und Garen von Nahrungsmitteln mittels Mikrowellenenergie kann zu Garungsgradschwankungen führen, die dem Gesamtergebnis des Kochvorgangs qua­litativ abträglich sind.The roasting, baking and cooking of food using microwave energy can lead to fluctuations in the degree of cooking which are detrimental to the overall result of the cooking process.

Diese, auf unterschiedliche Garung des Nahrungsmittels rückführbare Geschmacksbe­einflussung ist dadurch bedingt, daß sich die Absorptionskoeffizienten der Gargut­stücke stark unterscheiden, was beispielsweise durch unterschiedliche Wasserfindung und/oder Fettdurchwachsungen bedingt sein kann.This influence on taste, which can be traced back to different cooking of the food, is due to the fact that the absorption coefficients of the items to be cooked differ greatly, which can be caused, for example, by different water finding and / or fat growth.

Aus diesen Gründen sind sensorgesteuerte Herdautomatiken bekannt geworden, die durch Temperatur-, Feuchte- und/oder Leiterwertmessungen eine optimale Steuerung des Garungsprozesse herbeizuführen suchen. Da aber die Mikrowellenerhitzung von Nahrungsmittelstücken in wesentlich kürzerer Zeit vonstatten geht, als dies bei tra­ditionellen Erhitzungsverfahren stattfindet, können bestimmte Gargutbereiche Tem­ peraturen annehmen, die dem durchschnittlichen Garungsgrad nicht entsprechen. Es kann also durch Temperatursonden nicht ausgeschlossen werden, daß die Mikrowelle­nenergie zu früh oder zu spät abgeschaltet wird.For these reasons, sensor-controlled automatic cookers have become known which seek to bring about optimum control of the cooking processes by means of temperature, humidity and / or conductor value measurements. However, since the microwave heating of pieces of food takes place in a much shorter time than is done with traditional heating methods, certain cooking product areas Tem accept temperatures that do not correspond to the average degree of cooking. It cannot be ruled out by temperature probes that the microwave energy is switched off too early or too late.

Um diesem Mangel abzuhelfen sind verschiedene Herde mit Mikrowellenheizung, die sich der Mikro-Rechentechnik bedienen, entwickelt worden.To remedy this deficiency, various stoves with microwave heating that use micro-computing technology have been developed.

Die notwendige Regelinformation für den Mikrorechner, die dem Mikrorechner zur Steuerung oder Regelung von Garzeit, Gartemperatur, Leistungspegel eingegeben werden müssen, werden üblicherweise über Tasten- oder Schaltfelder, Programmkar­ten oder andere Aufzeichnungsträger realisiert. Die so abrufbaren Garprogramme werden beispielsweise in der US-PS 43 17 976 beschrieben.The necessary control information for the microcomputer, which must be entered into the microcomputer in order to control or regulate the cooking time, cooking temperature, power level, is usually realized via key or switch fields, program cards or other recording media. The cooking programs that can be called up in this way are described, for example, in US Pat. No. 4,317,976.

Ein bezüglich der Heizbedingungen programmierbarer Mikrowellenherd wird beispiels­weise in der US-PS 40 11 428 offenbart. DAs vom Mikrowellenherd aktuell bearbei­tete Erwärmungs- oder Garungsprogramm kann teilweise auf einem Anzeigeteil ver­folgt werden.A programmable microwave oven with respect to heating conditions is disclosed, for example, in US Pat. No. 4,011,428. The heating or cooking program currently being processed by the microwave oven can partly be followed on a display part.

Durch die DE-AS 11 97 996 ist eine Einrichtung zum elektrischen Garen, zeitpro­grammgesteuert, bekannt, wodurch eine weitgehende Automatisierung des Kochga­blaufs gegeben ist.From DE-AS 11 97 996 a device for electrical cooking, time-program-controlled, is known, which provides extensive automation of the cooking process.

Die im Stand der Technik bekanntgewordenen automatisierten Kochprozesse besitzen entweder den Nachteil, daß vom Anwender zu viele Details der Steuerungsdaten ein­gegeben werden müssen, die umständlich aus einer Kochbuch-Software zu entnehmen sind; oder die Hausfrau löst über ein Eingabemedium, beispielsweise eine Tastatur, eine Vollautomatik aus, wobei keinerlei subjektive Beeinflussung des Garprozesses möglich ist und mithin ein Standardgericht, ohne persönliche Note nach Hausfraue­nart, als Endergebnis dem Verbraucher angeboten wird.The automated cooking processes that have become known in the prior art either have the disadvantage that too many details of the control data have to be entered by the user, which are cumbersome to get from a cookbook software; or the housewife triggers a fully automatic function via an input medium, for example a keyboard, whereby no subjective influence on the cooking process is possible and therefore a standard dish, without a personal note according to the type of housewife, is offered to the consumer as the end result.

Die Aufgabe der Erfindung besteht darin, für ein Mikrowellen-Haushaltgerät eine mit dem Backofenbetrieb gekoppelte Mikrowellen-Zusatzleistung auswählbar bereitzu­stellen, wodurch sich Brat-, Back- und Garzeiten verkürzen lassen, ohne daß die Hausfrau Kochbuchsoftware einsehen muß.The object of the invention is to selectively provide a microwave additional power coupled with the oven operation for a microwave household appliance, as a result of which roasting, baking and cooking times can be shortened without the housewife having to see cookbook software.

Die erfindungsgemäße Mikrowellen-Heizeinrichtung als Lösung dieser Aufgabe ist da­durch gekennzeichnet, daß eine der Mikrowellen-Heizeinrichtung zugeordnete Steuer­einrichtung vorgesehen ist, die in Abhängigkeit von einer vorgewählten Ofenfunktion und/oder Ofentemperatur betätigbar ist und daß eine der vorgewählten Backofen­funktion entsprechende Mikrowellen-Heizleistung zuschaltbar ist, die gegenüber einer Zeit To, die der Brat-, Back- oder Garzeit für konventionellen Herdbetrieb ent­spricht, einen gargutspezifischen Verkürzungsfaktor bewirkt.The microwave heating device according to the invention as a solution to this problem is characterized in that a control device assigned to the microwave heating device is provided which can be actuated as a function of a preselected oven function and / or oven temperature and that a microwave heating power corresponding to the preselected oven function can be switched on, compared to a time To, which corresponds to the roasting, baking or cooking time for conventional stove operation, brings about a shortening factor specific to the food to be cooked.

Durch die erfindungsgemäße Mikrowellen-Heizeinrichtung wird zusätzlich eine weitere Einrichtung für Backofenbetrieb plus Mikrowelle bereitgestellt, wobei eine Mikrowel­lenleistung den vorgewählten Backofenheizungen bzw. Backofenfunktionen zugeschaltet wird. Parallel dazu bleibt die zeitgesteuerte Einstellung für Mikrowelle frei kombi­nierbar mit den Backofenfunktionen bestehen.The microwave heating device according to the invention additionally provides a further device for oven operation plus a microwave, a microwave power being switched on for the preselected oven heaters or oven functions. At the same time, the time-controlled setting for the microwave can be freely combined with the oven functions.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen enthalten.Advantageous embodiments of the invention are contained in the subclaims.

Ein Ausführungsbeispiel nach der Erfindung ist im folgenden anhand der Zeichnung näher beschrieben.An embodiment of the invention is described below with reference to the drawing.

Es zeigt:

  • Fig. 1 eine Einbauherd-Frontseite mit integrierter Mikrowellenheizung nach dem Stand der Technik.
  • Fig. 2 einen Bedienteil-Ausschnitt für Mikrowellenenergie-Bedienung mit ei­ner Integrationstaste für Mikrowellen-Zuschaltleistung.
It shows:
  • Fig. 1 shows a built-in cooker front with integrated microwave heating according to the prior art.
  • Fig. 2 shows a control panel section for microwave energy control with an integration button for microwave connection power.

Ein einbaufähiger Herd 1 mit integrierter Mikrowellenheizung, der ein Bedientableau 2 und einen Garraum 3 mit einem Gargut 4 erkennen läßt, ist der Fig. 1 ent­nehmbar. Die Auswahl der gewünschten Mikrowellenleistung erfolgt, wie aus dem Bedientableau 2 ersichtlich, über einen Tastensatz für vier Mikrowellen-Leistungsstu­fen. Die Mikrowellen-Leistungsstufen sind zeitgesteuert, was beispielsweise mit Hilfe eines Uhrbausteins realisierbar ist. Die Mikrowellenleistung kann als Solo- und Kom­binationsheizung mit konventioneller Backofenheizung abgerufen werden, wobei die gargutspezifische Einwirkdauer der Mikrowellenleistung im allgemeinen einer speziel­len Kochbuch-Software entnehmbar ist.A built-in cooker 1 with integrated microwave heating, which shows a control panel 2 and a cooking space 3 with a food 4, can be seen in FIG. 1. As can be seen from the control panel 2, the desired microwave power is selected using a button set for four microwave power levels. The microwave power levels are time-controlled, which can be achieved with the help of a clock module, for example. The microwave power can be called up as a solo and combination heater with conventional oven heating, whereby the Cooking-specific exposure time of the microwave power can generally be found in a special cookbook software.

Gemäß Fig. 2 ist ein Bedientableau-Ausschnitt 5, bestehend aus einer Automatikan­wahl 6, einer Mikrowellen-Leistungsstufen-Auswahl 7 und einer lntegrationstaste 8 dargestellt.According to FIG. 2, a control panel section 5, consisting of an automatic selection 6, a microwave power level selection 7 and an integration button 8, is shown.

Im Unterschied zum üblichen zeit gesteuerten Mikrowellenbetrieb soll durch die von der lntegrationstaste 8 anwählbare Steuerung eine Mikrowellenleistung automatisch für den thermischen Backofenbetrieb zuschaltbar sein. Die über die Integrationstaste 8 angewählte Steuerung schaltet in Abhängigkeit von einer vorgewählten Ofenfunk­tion und/oder Ofentemperatur eine der vorgewählten Backofenfunktion entsprechende Mikrowellen-Heizleistung zu.In contrast to the usual time-controlled microwave operation, the control that can be selected by the integration button 8 is intended to be able to automatically switch on a microwave power for the thermal oven operation. The control selected via the integration button 8 switches on a microwave heating power corresponding to the preselected oven function depending on a preselected oven function and / or oven temperature.

Dadurch ergibt sich eine unkomplizierte Einstellung für den Backofenbetrieb mit Mi­krowellen-Zuschaltleistung. Ein leicht merkbares Zuschaltschema für die Mikrowel­lenenergie ist für die Hausfrau vorteilhaft. Die bei einem guten Brat- bzw. Backer­gebnis zu erwartende Zeiteinsparung liegt beim Braten ca. 30 %, beim Backen bei ca. 40 %. Vorzugsweise wird eine Mikrowellen-Zuschaltleistung von 90W für eine 1. Integrations-Tastenstellung bemüht. Eine 2. Integrations-Tastenstellung schaltet 180W Mikrowellenleistung zu.This results in an uncomplicated setting for oven operation with a microwave power. An easily noticeable connection scheme for the microwave energy is advantageous for the housewife. The time saving to be expected with a good roasting or baking result is approx. 30% for roasting and approx. 40% for baking. A microwave activation power of 90W is preferably used for a first integration key position. A second integration button position switches on 180W microwave power.

Claims (5)

1. Mikrowellen-Haushaltgerät für Brat-, Back- und Garungsvorgänge mit einer Mikrowellen-Heizeinrichtung und mit einer thermischen Heizeinrichtung, wobei beide Einrichtungen separat und in Kombination betreibbar sind, dadurch gekennzeichnet, daß eine der Mikrowellen-Heizeinrichtung zugeord­nete, über Eingabeelemente anwählbare Steuereinrichtung vorgesehen ist, die in Abhängigkeit von einer vorgewählten Ofenfunktion und/oder Ofentemperatur eine der vorgewählten Backofenfunktion entsprechende Mikrowellen-Heizlei­stung zuschaltet.1. Microwave household appliance for roasting, baking and cooking processes with a microwave heating device and with a thermal heating device, both devices being operable separately and in combination, characterized in that a control device assigned to the microwave heating device and selectable via input elements is provided which, depending on a preselected oven function and / or oven temperature, switches on a microwave heating output corresponding to the preselected oven function. 2. Mikrowellen-Haushaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß als zuschaltbare Mikrowellen-Heizleistung die kleinste aus der Mikrowellen-Solo-­Steuerung verfügbare Leistung bevorzugt ist.2. Microwave household appliance according to claim 1, characterized in that the smallest power available from the microwave solo control is preferred as the switchable microwave heating power. 3. Mikrowellen-Haushaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß die zuschaltbare Mikrowellen-Heizleistung parallel zu den thermischen Heizleistun­gen ein- und ausgetaktet wird.3. Microwave household appliance according to claim 1, characterized in that the switchable microwave heating power is switched on and off in parallel with the thermal heating power. 4. Mikrowellen-Haushaltgerät nach Anspruch 1 und 3, dadurch gekennzeichnet, daß die zuschaltbare Mikrowellen-Heizleistung gleichzeitig mit dem Backofen­betrieb abgeschaltet wird.4. Microwave household appliance according to claim 1 and 3, characterized in that the switchable microwave heating power is switched off simultaneously with the operation of the oven. 5. Mikrowellen-Haushaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Steuerung zur Zuschaltung der Mikrowellen-Heizleistung durch eine Integra­tionstaste (8) anwählbar ist.5. Microwave household appliance according to claim 1, characterized in that the control for switching on the microwave heating power can be selected by an integration button (8).
EP19900103597 1989-03-01 1990-02-23 Microwave houshold appliance Ceased EP0385318A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893906504 DE3906504A1 (en) 1989-03-01 1989-03-01 MICROWAVE HOUSEHOLD APPLIANCE
DE3906504 1989-03-01

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EP0385318A2 true EP0385318A2 (en) 1990-09-05
EP0385318A3 EP0385318A3 (en) 1992-03-04

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EP19900103597 Ceased EP0385318A3 (en) 1989-03-01 1990-02-23 Microwave houshold appliance

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036654A1 (en) * 1969-07-24 1971-01-28 Bowmar/Tic, Ine Newbury Park, Calif (V St A ) Automatic program control for microwave ovens
DE3015436A1 (en) * 1979-04-24 1980-10-30 Tokyo Shibaura Electric Co MICROWAVE OVEN
US4430540A (en) * 1981-06-15 1984-02-07 Texas Instruments Incorporated Data input apparatus for microwave oven controllers
DE3528228A1 (en) * 1985-08-06 1987-02-12 Bosch Siemens Hausgeraete ARRANGEMENT FOR CONTROLLING OVENS WITH MICROWAVE ENERGY AND / OR HEATING ENERGY
US4755646A (en) * 1985-06-17 1988-07-05 Robertshaw Controls Company Electrically operated control device and system for a microwave oven

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036665C3 (en) * 1970-07-23 1974-02-07 Siemens Ag Display screen
GB2155211B (en) * 1984-02-21 1988-01-27 Toshiba Kk Cooking apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036654A1 (en) * 1969-07-24 1971-01-28 Bowmar/Tic, Ine Newbury Park, Calif (V St A ) Automatic program control for microwave ovens
DE3015436A1 (en) * 1979-04-24 1980-10-30 Tokyo Shibaura Electric Co MICROWAVE OVEN
US4430540A (en) * 1981-06-15 1984-02-07 Texas Instruments Incorporated Data input apparatus for microwave oven controllers
US4755646A (en) * 1985-06-17 1988-07-05 Robertshaw Controls Company Electrically operated control device and system for a microwave oven
DE3528228A1 (en) * 1985-08-06 1987-02-12 Bosch Siemens Hausgeraete ARRANGEMENT FOR CONTROLLING OVENS WITH MICROWAVE ENERGY AND / OR HEATING ENERGY

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Publication number Publication date
DE3906504A1 (en) 1990-09-13
DD292354A5 (en) 1991-07-25
EP0385318A3 (en) 1992-03-04

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