EP0410175B1 - Appareil domestique à micro-ondes - Google Patents

Appareil domestique à micro-ondes Download PDF

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Publication number
EP0410175B1
EP0410175B1 EP90112846A EP90112846A EP0410175B1 EP 0410175 B1 EP0410175 B1 EP 0410175B1 EP 90112846 A EP90112846 A EP 90112846A EP 90112846 A EP90112846 A EP 90112846A EP 0410175 B1 EP0410175 B1 EP 0410175B1
Authority
EP
European Patent Office
Prior art keywords
cooking
microwave
steam
cooked
appliance according
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
EP90112846A
Other languages
German (de)
English (en)
Other versions
EP0410175A2 (fr
EP0410175A3 (en
Inventor
Karlheinz Dipl.-Ing. Henry
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
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
Publication of EP0410175A2 publication Critical patent/EP0410175A2/fr
Publication of EP0410175A3 publication Critical patent/EP0410175A3/de
Application granted granted Critical
Publication of EP0410175B1 publication Critical patent/EP0410175B1/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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves

Definitions

  • the invention relates to a microwave domestic appliance, in particular for uniform cooking, the microwave energy used for the cooking process being generated by a magnetron and conducted directly or by means of a waveguide, preferably a rectangular conductor, to at least one feed opening of a cooking space and coupled into it. wherein means for combined steam-microwave cooking are arranged in the cooking space, which have a water film insulated from the food.
  • a microwave domestic appliance in particular for uniform cooking
  • the microwave energy used for the cooking process being generated by a magnetron and conducted directly or by means of a waveguide, preferably a rectangular conductor, to at least one feed opening of a cooking space and coupled into it.
  • means for combined steam-microwave cooking are arranged in the cooking space, which have a water film insulated from the food.
  • microwave cooking While in conventional cooking vegetables are cooked with the addition of large amounts of water, while disadvantageously rinsing or destroying minerals and vitamins, one of the great advantages of microwave cooking is that the food is quick and easy to prepare, while maintaining the impression of natural originality. For large portions of vegetables, especially when they are frozen from the microwave defrosting and cooking process However, it is disadvantageous that different cooking zones and surface burns of the food to be cooked occur.
  • the steam cooking methods avoid these disadvantages, but without the above-mentioned advantages of microwave cooking.
  • the object of the invention is therefore to develop an arrangement with the aid of which cooking, regardless of the particular food and its volume, is realized without adverse effects.
  • the arrangement according to the invention for solving this problem is characterized in that the water film, which primarily protects the food from direct microwave radiation, is directed toward the microwave feed opening, that a control connected to the magnetron during the cooking process reduces the ventilation of the cooking space and that the control controls the Selectable microwave cooking power supplies the cooking space, in which a food to be cooked is located in a steam cooker, as pulse power with a cycle ratio adapted to the food to be cooked.
  • the arrangement according to the invention combines the advantages of microwave cooking and steam cooking. There is no overheating as a result of uneven microwave energy density distribution, and there is no need for complex steam supply or such production, the nutrient-preserving cooking guaranteed by the arrangement according to the invention being particularly advantageous.
  • the constructive design of the steam cooker allows the use of the lower part as serving and cooking dishes.
  • the microwave domestic appliance 1 is a microwave domestic appliance 1 with a control panel (not shown), a cooking space 3, a controller 4 for a magnetron 5, the microwave energy generated by means of a waveguide 6 via a feed opening 7 to a steam cooker 8 located in the cooking space 3, the one Food 9 contains, recognizable.
  • the feed opening 7 acts according to FIG. 1 from the view of the cooking space 3 as an upper feed opening 7.
  • the steam cooker 8 is designed accordingly.
  • the steam cooker 8 is correspondingly varied in terms of its internal structure.
  • the microwave energy can also be fed in via the feed opening 7 by means of a rotating antenna or field stirrer, which can be located in the cooking space or waveguide.
  • the steam cooker 8 consists of microwave-permeable materials, such as glass, ceramic, plastic. It allows combined steam and microwave cooking via differently designed steam pressure compensation surfaces.
  • the thicknesses of the water films that are introduced into the food mean that both the Vapor pressure limits as well as the microwave energy supply, which can act directly on the food 9, metered.
  • the maximum steam pressure occurring in the steam cooker 8 is limited by the weight of a steam cooker lid 11, the water films being selected so that this maximum steam pressure remains unmatched. Since part of the water vapor spreading around the food 9 condenses, the water film jacket thus created acts as a protection against peripheral overcookings and burns
  • a steam cooker 8 is shown, the overall structure of which requires a microwave coupling into the cooking space 3 from above. This is illustrated in FIG. 2a by a symbolically indicated rotating antenna 10.
  • the steam cooker 8 consists of a steam cooker lid 11, an insert 12 and a steam cooker lower part 13. On the bottom of the steam cooker lower part 13, which can be grooved, a food 9, for example undivided cauliflower, is introduced. Water is placed in the insert 12 so that a water film a few millimeters thick is formed.
  • the cooker software or automatic program supplies the microwave energy required for the cauliflower case by the controller 4.
  • the insert 12 of the steam cooker 8 covers approximately 80% of the microwave entry surface of the steam cooker 8 and only around 10% each of an edge surface 14, less than 20% of the microwave energy generated by the steam cooker 8 reaches the food directly.
  • the water film With increasing microwave energy supply, the water film finally evaporates, the water vapor passes through the edge surfaces 14 and surrounds the food.
  • the water vapor which initially condenses on all sides, also protects larger volumes of food, here, for example, cauliflower, against peripheral burns that can be caused by reflected microwave energy.
  • the food is subjected to a combined microwave and steam cooking, since after the water film has evaporated, the microwave energy can act more directly on the food 9 both from the insert 12 and from the rest of the vessel edge.
  • a steam cooker 8 is shown, the overall structure of which requires a microwave coupling into the cooking space 3 from below. In Fig. 3a, this is indicated by a symbolic Rotating antenna 10 * clarified.
  • the food 9 is placed in an insert 12 * here.
  • the water film is generated so that the food 9 is again protected from direct microwave energy radiation until the combined steam-microwave cooking takes place, as already described.
  • An improved supply of steam to the food 9 can be ensured in that not only the edge surfaces 14, but also a hole pattern in the bottom of the insert 12 * enables steam to enter.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Cookers (AREA)
  • Electric Ovens (AREA)

Claims (8)

  1. Appareil électroménager à micro-ondes, notamment pour la cuisson à point uniforme, dans lequel l'énergie hyperfréquence utilisée pour le processus de cuisson est produite par un magnétron (5) et conduite directement ou au moyen d'un guide d'ondes (6), de préférence un guide d'onde rectangulaire, vers au moins une ouverture d'alimentation (7) d'une chambre de cuisson (3) dans laquelle elle est introduite, des moyens de cuisson combinée à la vapeur et aux micro-ondes, qui possèdent un film d'eau isolé de l'aliment à cuire (9), étant placés dans la chambre de cuisson (3), caractérisé en ce que le film d'eau qui protège en premier lieu l'aliment à cuire (9) de l'exposition directe aux micro-ondes est dirigé vers l'ouverture d'alimentation en micro-ondes (7), en ce qu'un dispositif de réglage automatique (4) relié au magnétron (5) réduit l'aération de la chambre de cuisson (3) pendant le processus de cuisson et en ce que le dispositif de réglage automatique (4) envoie à la chambre de cuisson (3) la puissance de cuisson hyperfréquence au choix sous forme d'impulsions ayant une périodicité adaptée à l'aliment à cuire (9).
  2. Appareil électroménager à micro-ondes selon la revendication 1, caractérisé en ce qu'une marmite de cuisson à la vapeur (8) est constituée de deux parties en verre, en céramique ou en matière plastique transparents aux micro-ondes qui forment un conteneur fermant de manière quasiment hermétique et est un moyen de cuisson combinée à la vapeur et aux micro-ondes.
  3. Appareil électroménager à micro-ondes selon la revendication 1, caractérisé en ce que la marmite de cuisson à la vapeur (8) possède un plateau (12), qui couvre à peu près 80 % de la surface d'exposition à l'énergie hyperfréquence de la marmite de cuisson à la vapeur (8), recouvert d'un couvercle (11).
  4. Appareil électroménager à micro-ondes selon la revendication 1, caractérisé en ce que, dans le cas d'une introduction de l'énergie hyperfréquence dans la chambre de cuisson (3) par le haut, le plateau (12) contient un film d'eau spécifique pour des aliments à cuire.
  5. Appareil électroménager à micro-ondes selon les revendications 2, 3, 4 et 5, caractérisé en ce que, du fait du plateau (12), deux surfaces marginales (14), qui font à peu près 20 % de la surface supérieure de la marmite de cuisson à la vapeur, apparaissent et permettent un équilibrage de la pression de vapeur dans la marmite de cuisson à la vapeur (8).
  6. Appareil électroménager à micro-ondes selon la revendication 1, caractérisé en ce que la marmite de cuisson à la vapeur (8) possède un plateau (12*), recouvert par le couvercle (11), qui est réalisé sous forme de support d'aliments à cuire.
  7. Appareil électroménager à micro-ondes selon les revendications 1 et 6, caractérisé en ce que le plateau (12*) possède des perforations sur le fond.
  8. Appareil électroménager à micro-ondes selon les revendications 1, 6 et 7, caractérisé en ce qu'une partie inférieure (13) de la marmite de cuisson à la vapeur (8) contient sur le fond un film d'eau spécifique pour des aliments à cuire.
EP90112846A 1989-07-27 1990-07-05 Appareil domestique à micro-ondes Expired - Lifetime EP0410175B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3924941 1989-07-27
DE3924941A DE3924941A1 (de) 1989-07-27 1989-07-27 Mikrowellen-haushaltgeraet

Publications (3)

Publication Number Publication Date
EP0410175A2 EP0410175A2 (fr) 1991-01-30
EP0410175A3 EP0410175A3 (en) 1992-05-27
EP0410175B1 true EP0410175B1 (fr) 1996-01-03

Family

ID=6385998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112846A Expired - Lifetime EP0410175B1 (fr) 1989-07-27 1990-07-05 Appareil domestique à micro-ondes

Country Status (6)

Country Link
EP (1) EP0410175B1 (fr)
AT (1) ATE132684T1 (fr)
DD (1) DD298155A5 (fr)
DE (2) DE3924941A1 (fr)
ES (1) ES2082803T3 (fr)
GR (1) GR3018742T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100233431B1 (ko) * 1997-04-10 1999-12-01 윤종용 전자렌지의 쵸크회로기판 보호장치
DE102009014683A1 (de) 2009-03-27 2010-09-30 Seram Ag Verfahren und Vorrichtung zum Flüssighalten von Schmelzen, insbesondere von metallischen Schmelzen und von Schlackeschmelzen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52169846U (fr) * 1976-06-16 1977-12-23
JPS54142638A (en) * 1978-04-28 1979-11-07 Hitachi Heating Appliance Co Ltd High frequency heating device
DE3106236C2 (de) * 1981-02-20 1986-11-27 Paul 8000 München Hirsch Zusatzvorrichtung für Mikrowellengeräte zum Kochen und Garen
US4317017A (en) * 1981-03-03 1982-02-23 Raytheon Company Microwave steamer
US4439656A (en) * 1981-04-06 1984-03-27 The Stouffer Corporation Apparatus and method for the reconstitution of frozen foods in a microwave oven
US4413167A (en) * 1982-01-11 1983-11-01 Raytheon Company Microwave egg cooker
US4477705A (en) * 1982-06-01 1984-10-16 Plastics, Inc. Microwave oven popcorn popper, steamer and roaster
US4532397A (en) * 1982-07-06 1985-07-30 Rubbermaid Incorporated Ovenware receptacle system
EP0288926A3 (fr) * 1987-04-25 1989-05-10 Hermine Neumüller Récipient métallique de cuisson d'aliments à la vapeur dans un four à micro-ondes
DE3714323A1 (de) * 1987-04-29 1988-11-17 Ingrid Richter Kochbehaelter fuer mikrowellenherde

Also Published As

Publication number Publication date
GR3018742T3 (en) 1996-04-30
DE59010026D1 (de) 1996-02-15
ATE132684T1 (de) 1996-01-15
DD298155A5 (de) 1992-02-06
DE3924941A1 (de) 1991-01-31
EP0410175A2 (fr) 1991-01-30
EP0410175A3 (en) 1992-05-27
ES2082803T3 (es) 1996-04-01

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