EP0846244B1 - Electric oven - Google Patents

Electric oven Download PDF

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Publication number
EP0846244B1
EP0846244B1 EP96929356A EP96929356A EP0846244B1 EP 0846244 B1 EP0846244 B1 EP 0846244B1 EP 96929356 A EP96929356 A EP 96929356A EP 96929356 A EP96929356 A EP 96929356A EP 0846244 B1 EP0846244 B1 EP 0846244B1
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EP
European Patent Office
Prior art keywords
rotary
waveguide
cooking chamber
oven according
plates
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.)
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EP96929356A
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German (de)
French (fr)
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EP0846244A1 (en
Inventor
Michel De Matteis
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Moulinex SA
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Moulinex SA
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    • 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
    • F24C15/00—Details
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • 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
    • H05B6/70—Feed lines
    • H05B6/704—Feed lines using microwave polarisers
    • 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
    • H05B6/6402—Aspects relating to the microwave cavity
    • 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
    • H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
    • H05B6/6411—Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated

Definitions

  • the invention relates to an electric cooking oven according to the first part of claim 1.
  • Such an electric cooking oven makes it possible to place generally, in the cooking chamber, a single dish of a food preparation. Indeed, given the construction of the rotary device, when user wishes to process several dishes, either different, or similar for several people, it must successively position the dish inside the oven, program the oven electric cooking and finally trigger the operation of said electric oven. This operation is therefore performed as many times as there are dishes to be processed, and therefore requires numerous manipulations of the user. On the other hand, in such devices of cooking, when the food to be cooked is placed in stacked containers or packaging with dimensions adjacent to the cooking chamber, these prevent a good distribution of microwaves thus causing different food treatments.
  • US-A-4,337,384 and US-A-4,481,396 each describe a microwave oven with two rotating trays of food reception.
  • the object of the invention is to remedy the aforementioned drawbacks when using an oven electric cooking for simultaneous processing several foods.
  • the new rotary receiving device in the enclosure of cooking, handling of dishes in the oven is greatly improved.
  • such a new device rotary receiver increases capacity traditional electric baking oven, namely the possibility of simultaneously processing several dishes thus limiting electricity consumption and increasing the speed of food preparation.
  • the judicious adaptation of the output in the cooking chamber improves, thanks to its correlation with said new rotary receiving device, the distribution of microwave energy within the enclosure cooking and therefore each of the food to be cooked placed on different levels within the enclosure of cooking undergoes optimum microwave radiation allowing to obtain a very good treatment of said food to cook.
  • the electric cooking oven comprises, inter alia, a microwave energy source 2 such as for example a magnetron, a waveguide 3, the outlet of which opens into a cooking enclosure delimited by a wall bottom 4, a roof wall 5, a floor wall 6, two side walls 7 and 8 and a door not shown.
  • the microwave energy source 2 and the waveguide 3 are fixed to the side wall 8.
  • the cooking enclosure has, for example, the shape of a parallelogram, but any other geometric shape is possible.
  • the electric cooking oven comprises, inter alia, a rotary device R intended to receive dishes or food to be cooked and driven by control means 23 (fig.3) placed outside the cooking enclosure, preferably behind the back wall 4.
  • the rotary device R comprises at least two rotary plates 9, 10, called lower 9 and upper 10, removably mounted in the cooking chamber, superimposed and spaced from each other by a distance d , and the output of the waveguide 3 is adapted to promote good distribution of the waves on the two plates 9 and 10.
  • Said rotary tables are preferably circular.
  • the microwave energy source emits, by example, a radiation whose frequency is 2450 Mhz.
  • the enclosure of cooking comprises, for each of the rotary plates 9, 10, two guide means 11, 12; 13.14, of which only one 11; 13 of said two guide means is visible.
  • the upper 10 and lower 9 rotary tables are mounted respectively in rotation by any known means on removable supports 15, 16 resting respectively on the guide means.
  • Said supports 15, 16 include means of transmission 19 of the rotary movement interposed in coupling between the control means 23 and the turntable 9; 10.
  • the control means 23 (not shown in this figure) are arranged on one at less of the enclosure walls and have at least one electric motor group.
  • the upper rotary tables and lower having substantially similar dimensions dimensions of the cooking chamber, the two means guide 11, 12; 13, 14 are placed respectively on each of the side walls 7 and 8 of the enclosure of cooking, in order to easily position each of the trays rotary.
  • the two guide means 11, 12 of the lower plate 9 are placed close to the sole wall 6, and the two guide means 13, 14 of the upper plate 10 are placed substantially at mid-height in the cooking chamber.
  • the output of the waveguide 3 comprises at least two openings 30 and 32 (see figure 4 or 5), one of which 32 is arranged between the rotary plates 9; 10.
  • the output of the waveguide 3 comprises three openings 30, 31 and 32: A first opening 32 is located between the lower 9 and upper shelves 10; a second opening 30 is located above the upper plate 10; finally, an intermediate opening 31 is located either below the upper plate 10 ( Figure 4), or substantially at the level of this plate upper 10 ( Figure 5). In the latter case, best results in wave distribution are obtained by arranging for most of the waves from the waveguide through the opening intermediate 31 enters the enclosure on one level located below the upper plate 10.
  • each of the rotary plates 9; 10 is rotatably mounted respectively on a removable support 15; 16 presenting the shape of a rectangular tray whose width and depth are virtually identical to the width and the depth of the interior of the cooking chamber.
  • Each of said removable supports 15; 16 includes a front part 17 and rear part 18, said part rear 18 being intended to come into abutment against the bottom wall 4 when said removable support 15; 16 is correctly positioned inside the enclosure cooking.
  • Each removable support 15; 16 consists of preferably a material transparent to microwaves such than plastic, and the turntable 9; 10 is from preferably made of tempered glass.
  • Such support removable 15; 16 includes transmission means 19 ( Figure 3) interposed in coupling between the means of control 23 and the turntable 9; 10.
  • Support removable is positioned, for example, on means of guide 11, 12; 13, 14 fixed on the side walls 7; 8 of the cooking chamber, and having in this realization of the form of longitudinal slide.
  • FIG. 3 in which the elements of the FIGS. 1 and 2 are designated by the same references, only the upper removable support 16 and the plate 10 are positioned in the cooking chamber.
  • the transmission means 19 of the removable support upper 16 include a shaft 20, one end of which 21 is fixed on the rear part 18 of the removable support 16 opposite the bottom wall 4 and the other of which end 22 is adapted to mate with the control means 23 comprising, inter alia, a motor electric not shown.
  • the control means 23 comprising, inter alia, a motor electric not shown.
  • control means 23 and the transmission means 19 for the removable support 15 and the plate 9 are of a construction similar to that described above. However, for this lower plateau 9, we can also consider another rotary table without sliding support, with control means in rotation then arranged under the sole 6 in a manner known in oneself.
  • the oven cooking is additionally provided with at least one resistance heater placed under the roof wall 5. Said resistance is moved away from an appropriate height upper turntable 10 so that the infrared radiation does not burn dishes placed on the plate 10.
  • the electric cooking oven thus constituted is of easy to use for the user and facilitates simultaneous processing of several dishes and dishes.
  • the user wishing to process several dishes or put position the different removable supports in the cooking chamber to the position shown on Figure 3.
  • the user places the containers containing the dishes to be cooked on each of the trays rotary placed in the cooking chamber.
  • Said user programs the electric oven according to the type foods constituting the dishes placed in said cooking chamber and trips, after checking the closing the oven door, the operation of said oven.
  • the user can position one and / or the other of the removable rotating trays in the cooking chamber so that you can process one or more foods.
  • the transmission means 19 fitted to the removable supports 15; 16 the establishment or the removal of these supports is simple and automatic, thus ensuring, on the one hand, ease of cleaning the cooking chamber and, on the other hand, a great convenience of using the oven for a family of users.

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  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Electric Ovens (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Cookers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Saccharide Compounds (AREA)

Abstract

PCT No. PCT/FR96/01304 Sec. 371 Date Feb. 23, 1998 Sec. 102(e) Date Feb. 23, 1998 PCT Filed Aug. 22, 1996 PCT Pub. No. WO97/08497 PCT Pub. Date Mar. 6, 1997An electric oven includes a microwave energy source (2), a waveguide (3) with an output section that terminates in a cooking enclosure defined by a base wall (4), a top wall (5), a sole wall (6) and two side walls (7, 8), and a rotary device (R) inside the cooking enclosure, for receiving food products to be cooked, and rotated by control elements (23) external to the cooking enclosure. The rotary device (R) has two or more rotary plates (9, 10), an upper (9) and a lower (10) plate, removably mounted in the cooking enclosure, one above the other and spaced from each other by a distance d, and the output section of the waveguide (3) is adapted to allow a suitable distribution of the waves on the two plates (9, 10).

Description

L'invention concerne un four électrique de cuisson selon la première partie de la revendication 1.The invention relates to an electric cooking oven according to the first part of claim 1.

Un tel four électrique de cuisson permet de placer généralement, dans l'enceinte de cuisson, un plat unique d'une préparation alimentaire. En effet, compte tenu de la construction du dispositif rotatif, lorsqu'un utilisateur désire traiter plusieurs plats, soit différents, soit semblables pour plusieurs personnes, il doit, successivement, positionner le plat à l'intérieur de l'enceinte de cuisson, programmer ledit four électrique de cuisson et, enfin, déclencher le fonctionnement dudit four électrique. Cette opération est donc réalisée autant de fois qu'il y de plats à traiter, et nécessite, de ce fait, de nombreuses manipulations de l'utilisateur. D'autre part, dans de tels appareils de cuisson, lorsque les aliments à cuire sont placés dans des récipients ou emballages superposés et aux dimensions voisines de l'enceinte de cuisson, ces derniers empêchent une bonne répartition des micro-ondes provoquant ainsi des traitements différents des aliments.Such an electric cooking oven makes it possible to place generally, in the cooking chamber, a single dish of a food preparation. Indeed, given the construction of the rotary device, when user wishes to process several dishes, either different, or similar for several people, it must successively position the dish inside the oven, program the oven electric cooking and finally trigger the operation of said electric oven. This operation is therefore performed as many times as there are dishes to be processed, and therefore requires numerous manipulations of the user. On the other hand, in such devices of cooking, when the food to be cooked is placed in stacked containers or packaging with dimensions adjacent to the cooking chamber, these prevent a good distribution of microwaves thus causing different food treatments.

Les US-A-4 337 384 et US-A-4 481 396 décrivent chacun un four à micro-ondes avec deux plateaux rotatifs de réception d'aliments.US-A-4,337,384 and US-A-4,481,396 each describe a microwave oven with two rotating trays of food reception.

Le but de l'invention est de remédier aux inconvénients précités en mettant en oeuvre un four électrique de cuisson permettant de traiter simultanément plusieurs aliments. The object of the invention is to remedy the aforementioned drawbacks when using an oven electric cooking for simultaneous processing several foods.

Ce but est atteint avec un four électrique du type spécifié dans la revendication 1.This object is achieved with an electric oven of the type specified in claim 1.

Grâce à un positionnement astucieux du nouveau dispositif rotatif de réception dans l'enceinte de cuisson, la manipulation des plats dans le four est grandement améliorée. De plus, un tel nouveau dispositif rotatif de réception augmente les capacités traditionnelles du four électrique de cuisson, à savoir la possibilité de traiter simultanément plusieurs plats limitant ainsi la consommation d'électricité et augmentant la rapidité de préparation des mets. D'autre part, l'adaptation judicieuse de la sortie dans l'enceinte de cuisson améliore, grâce à sa corrélation avec ledit nouveau dispositif rotatif de réception, la répartition de l'énergie micro-ondes dans l'enceinte de cuisson et, par conséquent, chacun des aliments à cuire placés à des niveaux différents dans l'enceinte de cuisson subit un rayonnement micro-ondes optimum permettant d'obtenir un très bon traitement dudit aliment à cuire.Thanks to a clever positioning of the new rotary receiving device in the enclosure of cooking, handling of dishes in the oven is greatly improved. In addition, such a new device rotary receiver increases capacity traditional electric baking oven, namely the possibility of simultaneously processing several dishes thus limiting electricity consumption and increasing the speed of food preparation. Else hand, the judicious adaptation of the output in the cooking chamber improves, thanks to its correlation with said new rotary receiving device, the distribution of microwave energy within the enclosure cooking and therefore each of the food to be cooked placed on different levels within the enclosure of cooking undergoes optimum microwave radiation allowing to obtain a very good treatment of said food to cook.

D'autres caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, prise à titre d'exemple non limitatif, en référence aux dessins annexés dans lesquels:

  • la figure 1 représente, schématiquement en perspective, une enceinte de cuisson d'un four électrique selon l'invention équipé d'un premier dispositif rotatif de reception.
  • La figure 2 représente schématiquement en perspective à une échelle réduite un autre mode de réalisation d'un four électrique de cuisson selon l'invention, et équipé d'un second dispositif rotatif;
  • La figure 3 est une coupe verticale, à échelle légèrement agrandie, selon la ligne I.I de la figure 2, mais dans laquelle le dispositif rotatif est partiellement représenté;
  • Les figures 4 et 5 sont des vues de face en coupe de la cavité du four et du guide d'ondes selon deux variantes de réalisation possibles de l'invention.
Other characteristics and advantages of the invention will also emerge from the description which follows, taken by way of nonlimiting example, with reference to the appended drawings in which:
  • Figure 1 shows, schematically in perspective, a cooking chamber of an electric oven according to the invention equipped with a first rotary receiving device.
  • FIG. 2 schematically shows in perspective on a reduced scale another embodiment of an electric cooking oven according to the invention, and equipped with a second rotary device;
  • Figure 3 is a vertical section, on a slightly enlarged scale, along line II of Figure 2, but in which the rotary device is partially shown;
  • Figures 4 and 5 are front sectional views of the oven cavity and the waveguide according to two possible embodiments of the invention.

Selon la figure 1, le four électrique de cuisson comprend, entre autres, une source d'énergie micro-ondes 2 telle que par exemple un magnétron, un guide d'ondes 3 dont la sortie débouche dans une enceinte de cuisson délimitée par une paroi de fond 4, une paroi de voûte 5, une paroi de sole 6, deux parois latérales 7 et 8 et une porte non représentée. Dans l'exemple représenté, la source d'énergie micro-ondes 2 et le guide d'ondes 3 sont fixés sur la paroi latérale 8. L'enceinte de cuisson présente, par exemple, la forme d'un parallélogramme, mais toute autre forme géométrique est envisageable. Le four électrique de cuisson comporte, entre autres, un dispositif rotatif R destiné à recevoir des plats ou des aliments à cuire et entraíné par des moyens de commande 23 ( fig.3) placés à l'extérieur de l'enceinte de cuisson, de préférence derrière la paroi de fond 4.According to FIG. 1, the electric cooking oven comprises, inter alia, a microwave energy source 2 such as for example a magnetron, a waveguide 3, the outlet of which opens into a cooking enclosure delimited by a wall bottom 4, a roof wall 5, a floor wall 6, two side walls 7 and 8 and a door not shown. In the example shown, the microwave energy source 2 and the waveguide 3 are fixed to the side wall 8. The cooking enclosure has, for example, the shape of a parallelogram, but any other geometric shape is possible. The electric cooking oven comprises, inter alia, a rotary device R intended to receive dishes or food to be cooked and driven by control means 23 (fig.3) placed outside the cooking enclosure, preferably behind the back wall 4.

Selon l'invention, le dispositif rotatif R comporte au moins deux plateaux rotatifs 9, 10, dits inférieur 9 et supérieur 10, montés amovibles dans l'enceinte de cuisson, superposés et espacés l'un de l'autre d'une distance d, et la sortie du guide d'ondes 3 est adaptée à favoriser une bonne répartition des ondes sur les deux plateaux 9 et 10.According to the invention, the rotary device R comprises at least two rotary plates 9, 10, called lower 9 and upper 10, removably mounted in the cooking chamber, superimposed and spaced from each other by a distance d , and the output of the waveguide 3 is adapted to promote good distribution of the waves on the two plates 9 and 10.

Lesdits plateaux rotatifs sont, de préférence, circulaires. La source d'énergie micro-ondes émet, par exemple, un rayonnement dont la fréquence est de 2450 Mhz.Said rotary tables are preferably circular. The microwave energy source emits, by example, a radiation whose frequency is 2450 Mhz.

Sur la figure 1, on peut voir que l'enceinte de cuisson comporte, pour chacun des plateaux rotatifs 9, 10, deux moyens de guidage 11, 12; 13,14, dont un seul 11; 13 desdits deux moyens de guidage est visible. Les plateaux rotatifs supérieur 10 et inférieur 9 sont montés respectivement en rotation par tous moyens connus sur des supports amovibles 15, 16 reposant respectivement sur les moyens de guidage. Lesdits supports 15, 16 comportent des moyens de transmission 19 du mouvement rotatif interposés en accouplement entre les moyens de commande 23 et le plateau rotatif 9; 10. Les moyens de commande 23 (non représentés sur cette figure) sont agencés sur l'une au moins des parois de l'enceinte et comportent au moins un groupe moteur électrique. Les plateaux rotatifs supérieur et inférieur ayant des dimensions sensiblement voisines des dimensions de l'enceinte de cuisson, les deux moyens de guidage 11, 12; 13, 14 sont placés respectivement sur chacune des parois latérales 7 et 8 de l'enceinte de cuisson, afin de positionner aisément chacun des plateaux rotatifs. Comme on le voit, les deux moyens de guidage 11, 12 du plateau inférieur 9 sont placés à proximité de la paroi de sole 6, et les deux moyens de guidage 13, 14 du plateau supérieur 10 sont placés sensiblement à mi-hauteur dans l'enceinte de cuisson.In Figure 1, we can see that the enclosure of cooking comprises, for each of the rotary plates 9, 10, two guide means 11, 12; 13.14, of which only one 11; 13 of said two guide means is visible. The upper 10 and lower 9 rotary tables are mounted respectively in rotation by any known means on removable supports 15, 16 resting respectively on the guide means. Said supports 15, 16 include means of transmission 19 of the rotary movement interposed in coupling between the control means 23 and the turntable 9; 10. The control means 23 (not shown in this figure) are arranged on one at less of the enclosure walls and have at least one electric motor group. The upper rotary tables and lower having substantially similar dimensions dimensions of the cooking chamber, the two means guide 11, 12; 13, 14 are placed respectively on each of the side walls 7 and 8 of the enclosure of cooking, in order to easily position each of the trays rotary. As can be seen, the two guide means 11, 12 of the lower plate 9 are placed close to the sole wall 6, and the two guide means 13, 14 of the upper plate 10 are placed substantially at mid-height in the cooking chamber.

De préférence, selon un mode de réalisation préféré, la sortie du guide d'ondes 3 comporte au moins deux ouvertures 30 et 32 (voir figure 4 ou 5) dont l'une 32 est agencée entre les plateaux rotatifs 9; 10.Preferably, according to a preferred embodiment, the output of the waveguide 3 comprises at least two openings 30 and 32 (see figure 4 or 5), one of which 32 is arranged between the rotary plates 9; 10.

Dans les variantes de réalisation représentées sur les figures 4 et 5, la sortie du guide d'ondes 3 comporte trois ouvertures 30, 31 et 32 : Une première ouverture 32 est située entre les plateaux inférieur 9 et supérieur 10; une deuxième ouverture 30 est située au-dessus du plateau supérieur 10; enfin, une ouverture intermédiaire 31 est localisée soit au-dessous du plateau supérieur 10 (figure 4), soit sensiblement au niveau de ce plateau supérieur 10 ( Figure 5) . Dans ce dernier cas, de meilleurs résultats dans la répartition des ondes sont obtenus en s'arrangeant pour que la majeure partie des ondes issues du guide d'ondes par l'ouverture intermédiaire 31 pénètre dans l'enceinte à un niveau situé au-dessous du plateau supérieur 10.In the variant embodiments shown on Figures 4 and 5, the output of the waveguide 3 comprises three openings 30, 31 and 32: A first opening 32 is located between the lower 9 and upper shelves 10; a second opening 30 is located above the upper plate 10; finally, an intermediate opening 31 is located either below the upper plate 10 (Figure 4), or substantially at the level of this plate upper 10 (Figure 5). In the latter case, best results in wave distribution are obtained by arranging for most of the waves from the waveguide through the opening intermediate 31 enters the enclosure on one level located below the upper plate 10.

Dans un exemple de réalisation préférentiel tel que représenté sur la figure 2, et dans lequel on a gardé les mêmes références pour désigner des organes semblables, chacun des plateaux rotatifs 9; 10 est monté en rotation respectivement sur un support amovible 15; 16 présentant la forme d'un plateau rectangulaire dont la largeur et la profondeur sont pratiquement identiques à la largeur et la profondeur de l'intérieur de l'enceinte de cuisson. Chacun desdits supports amovibles 15; 16 comprend une partie avant 17 et une partie arrière 18, ladite partie arrière 18 étant destinée à venir en appui contre la paroi de fond 4 lorsque ledit support amovible 15; 16 est correctement positionné à l'intérieur de l'enceinte de cuisson. Chaque support amovible 15; 16 est constitué, de préférence, d'un matériau transparent aux micro-ondes tel qu'un plastique, et le plateau rotatif 9; 10 est de préférence réalisé en verre trempé. Un tel support amovible 15; 16 comporte des moyens de transmission 19 (figure 3) interposés en accouplement entre les moyens de commande 23 et le plateau rotatif 9; 10. Le support amovible est positionné, par exemple, sur des moyens de guidage 11, 12; 13, 14 fixés sur les parois latérales 7; 8 de l'enceinte de cuisson, et présentant dans cette réalisation la forme de glissière longitudinale. In a preferred embodiment such as shown in Figure 2, and in which we kept the same references to designate similar bodies, each of the rotary plates 9; 10 is rotatably mounted respectively on a removable support 15; 16 presenting the shape of a rectangular tray whose width and depth are virtually identical to the width and the depth of the interior of the cooking chamber. Each of said removable supports 15; 16 includes a front part 17 and rear part 18, said part rear 18 being intended to come into abutment against the bottom wall 4 when said removable support 15; 16 is correctly positioned inside the enclosure cooking. Each removable support 15; 16 consists of preferably a material transparent to microwaves such than plastic, and the turntable 9; 10 is from preferably made of tempered glass. Such support removable 15; 16 includes transmission means 19 (Figure 3) interposed in coupling between the means of control 23 and the turntable 9; 10. Support removable is positioned, for example, on means of guide 11, 12; 13, 14 fixed on the side walls 7; 8 of the cooking chamber, and having in this realization of the form of longitudinal slide.

Selon la figure 3, sur laquelle les éléments des figures 1 et 2 sont désignés par les mêmes références, seuls le support amovible supérieur 16 et le plateau 10 sont positionnés dans l'enceinte de cuisson.According to FIG. 3, in which the elements of the FIGS. 1 and 2 are designated by the same references, only the upper removable support 16 and the plate 10 are positioned in the cooking chamber.

Les moyens de transmission 19 du support amovible supérieur 16 comprennent un arbre 20 dont une extrémité 21 est fixée sur la partie arrière 18 du support amovible 16 en regard de la paroi de fond 4 et dont l'autre extrémité 22 est adaptée à venir s'accoupler avec les moyens de commande 23 comprenant, entre autres, un moteur électrique non représenté. Lorsque l'utilisateur place le support amovible 16 dans l'enceinte de cuisson, l'arbre 20 traverse un trou 24 réalisé dans la paroi de fond 4, ce qui facilite la liaison avec les moyens de commande 23.The transmission means 19 of the removable support upper 16 include a shaft 20, one end of which 21 is fixed on the rear part 18 of the removable support 16 opposite the bottom wall 4 and the other of which end 22 is adapted to mate with the control means 23 comprising, inter alia, a motor electric not shown. When the user places the removable support 16 in the cooking chamber, the shaft 20 passes through a hole 24 made in the bottom wall 4, which facilitates the connection with the control means 23.

Comme on le comprendra, les moyens de commande 23 et les moyens de transmission 19 pour le support amovible 15 et le plateau 9 sont d'une construction semblable à celle décrite ci-dessus. Néanmoins, pour ce plateau inférieur 9, on peut également envisager un autre plateau rotatif sans support coulissant, avec un moyen de commande en rotation agencé alors sous la sole 6 de manière connue en soi.As will be understood, the control means 23 and the transmission means 19 for the removable support 15 and the plate 9 are of a construction similar to that described above. However, for this lower plateau 9, we can also consider another rotary table without sliding support, with control means in rotation then arranged under the sole 6 in a manner known in oneself.

Selon une réalisation différente non représentée d'un four électrique de cuisson à micro-ondes , l'enceinte de cuisson est munie en outre d'au moins une résistance chauffante placée sous la paroi de voûte 5. Ladite résistance est éloignée d'une hauteur appropriée du plateau rotatif supérieur 10 de manière à ce que le rayonnement infrarouge ne brûle pas les plats posés sur le plateau 10.According to a different embodiment not shown of a electric microwave oven, the oven cooking is additionally provided with at least one resistance heater placed under the roof wall 5. Said resistance is moved away from an appropriate height upper turntable 10 so that the infrared radiation does not burn dishes placed on the plate 10.

D'autres variantes de réalisation sont possibles, par exemple, l'utilisation de trois supports amovibles.Other variant embodiments are possible, for example example, the use of three removable media.

Grâce à l'invention ainsi réalisée, on comprendra que le four électrique de cuisson ainsi constitué est d'une utilisation aisée pour l'utilisateur et facilite le traitement simultané de plusieurs plats et mets. En effet, l'utilisateur désirant traiter plusieurs plats ou mets, positionne les différents supports amovibles dans l'enceinte de cuisson jusqu'à la position représentée sur la figure 3. Ensuite, l'utilisateur place les récipients contenant les plats à cuire sur chacun des plateaux rotatifs placés dans l'enceinte de cuisson. Ledit utilisateur programme le four électrique selon la nature des aliments constituant les plats placés dans ladite enceinte de cuisson et déclenche, après avoir vérifié la fermeture de la porte de l'enceinte de cuisson, le fonctionnement dudit four. Grâce à l'adaptation de la sortie du guide d'ondes 3 aux plateaux rotatifs de manière à obtenir une bonne répartition des ondes, et notamment à la disposition de l'ouverture entre les deux plateaux rotatifs 9; 10, on obtient un chauffage pratiquement homogène sur les deux étages des plateaux rotatifs.Thanks to the invention thus realized, it will be understood that the electric cooking oven thus constituted is of easy to use for the user and facilitates simultaneous processing of several dishes and dishes. In effect, the user wishing to process several dishes or put, position the different removable supports in the cooking chamber to the position shown on Figure 3. Next, the user places the containers containing the dishes to be cooked on each of the trays rotary placed in the cooking chamber. Said user programs the electric oven according to the type foods constituting the dishes placed in said cooking chamber and trips, after checking the closing the oven door, the operation of said oven. Thanks to the adaptation of the output of waveguide 3 to the rotary plates of so as to obtain a good distribution of the waves, and especially at the disposal of the opening between the two rotary tables 9; 10, heating is obtained practically homogeneous on the two stages of the platforms rotary.

D'autre part, en fonction des aliments à traiter, l'utilisateur peut positionner l'un et/ou l'autre des plateaux rotatifs amovibles dans l'enceinte de cuisson de manière à pouvoir traiter un ou plusieurs aliments.On the other hand, depending on the food to be treated, the user can position one and / or the other of the removable rotating trays in the cooking chamber so that you can process one or more foods.

En outre, grâce aux moyens de transmission 19 équipant les supports amovibles 15; 16, la mise en place ou l'enlèvement de ces supports est simple et automatique, assurant ainsi, d'une part, une facilité de nettoyage de l'enceinte de cuisson et, d'autre part, une grande commodité d'utilisation du four pour une famille d'utilisateurs.In addition, thanks to the transmission means 19 fitted to the removable supports 15; 16, the establishment or the removal of these supports is simple and automatic, thus ensuring, on the one hand, ease of cleaning the cooking chamber and, on the other hand, a great convenience of using the oven for a family of users.

Claims (9)

  1. An electric cooking oven comprising a microwave energy source (2), a waveguide (3) whose exit opens out into a cooking chamber delimited by a back wall (4), a top wall (5), a bottom wall (6) and two side walls (7) and (8) and a rotary device (R) internal to the cooking chamber, intended to receive food to be cooked and driven in rotation by control means (23) placed outside the cooking chamber, said rotary device (R) comprising at least two rotary plates (9; 10) referred to as bottom (9) and top (10), and removably mounted within the cooking chamber, placed one above the other and spaced apart from each other by a distance d,
    characterised in that the cooking chamber has two quidance means (11, 12; 13, 14) for each of the rotary plates (9; 10), the two guidance means of each plate being placed respectively on each of two side walls (7, 8) of the cooking chamber, and the exit of the waveguide (3) being adapted to promote good distribution of the waves over the plates (9, 10).
  2. Electric cooking oven according to claim 1,
    characterised in that the two guidance means (11, 12) of the bottom plate (9) are placed close to the bottom wall (6) and the two guidance means (13, 14) of the top plate (10) are placed substantially halfway up in the cooking chamber.
  3. Electric cooking oven according to claim 1 or 2,
    characterised in that the exit of the waveguide (3) has at least two openings, one of which is arranged between the rotary plates (9; 10).
  4. Electric cooking oven according to one of claims 1 to 3,
    characterised in that each of the rotary plates (9; 10) is mounted on a removable support (15, 16) which, on the one hand, has means (19) for transmitting the rotary movement interposed so as to be coupled between control means (23) and the rotary plate (9; 10) and, on the other hand, is positioned on the two guidance means (11, 12; 13, 14) fixed to the side wells (7; 8) of the cooking chamber.
  5. Electric cooking oven according to claim 4,
    characterised in that the removable support (15; 16) comprising a front part (17) and a rear part (18), the means (19) for transmitting the rotary movement of each of the rotary plates (9; 10) comprise a shaft (20), one end of which is fixed to the rear part (18) of the removable support (15; 16) opposite the back wall (4) and the other end of which is adapted to come to be coupled with the control means (23).
  6. Electric cooking oven according to any one of the preceding claims and whose chamber is provided with at least one heating element placed below the top wall (5),
    characterised in that the heating element is distant by an appropriate height from the top rotary plate (10).
  7. Electric cooking oven according to any one of the preceding claims,
    characterised in that the microwave energy source (2) has a radiation whose frequency is 2450 MHz.
  8. Electric cooking oven according to any one of the preceding claims,
    characterised in that the exit of the waveguide (3) has a first opening (32) situated between the top (10) and bottom (9) rotary plates, a second opening (30) situated above the top rotary plate (10), and a third intermediate opening (31) situated below the top rotary plate (10).
  9. Electric cooking oven according to any one of claims 1 to 7,
    characterised in that the exit of the waveguide (3) has a first opening (32) situated between the top (10) and bottom (9) rotary plates, a second opening (30) situated above the top rotary plate (10) and a third intermediate opening (31) situated substantially at the level of the top rotary place (10).
EP96929356A 1995-08-25 1996-08-22 Electric oven Expired - Lifetime EP0846244B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9510112 1995-08-25
FR9510112A FR2738054B1 (en) 1995-08-25 1995-08-25 ELECTRIC COOKING OVEN
PCT/FR1996/001304 WO1997008497A1 (en) 1995-08-25 1996-08-22 Electric oven

Publications (2)

Publication Number Publication Date
EP0846244A1 EP0846244A1 (en) 1998-06-10
EP0846244B1 true EP0846244B1 (en) 2001-11-21

Family

ID=9482104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96929356A Expired - Lifetime EP0846244B1 (en) 1995-08-25 1996-08-22 Electric oven

Country Status (11)

Country Link
US (1) US6002120A (en)
EP (1) EP0846244B1 (en)
JP (1) JPH11511586A (en)
KR (1) KR100443454B1 (en)
CN (1) CN1122784C (en)
AT (1) ATE209320T1 (en)
CA (1) CA2227971A1 (en)
DE (1) DE69617248D1 (en)
FR (1) FR2738054B1 (en)
MX (1) MX9801484A (en)
WO (1) WO1997008497A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796082A (en) * 1995-10-26 1998-08-18 Samsung Electronics Co., Ltd. Microwave oven having partitions in cooking chamber for carrying rotary trays
FR2768494B1 (en) * 1997-09-18 2000-04-21 Moulinex Sa ROTATING TRAY PLATE FOR MICROWAVE OVEN
KR100385045B1 (en) * 1999-09-22 2003-05-22 삼성전자주식회사 Microwave oven
KR100465191B1 (en) * 2002-02-06 2005-01-13 삼성전자주식회사 Microwave Range
DE102004059900B3 (en) * 2004-12-13 2006-08-03 Topinox Sarl Cooking appliance with microwave generating device
DE102006012041A1 (en) * 2006-03-16 2007-09-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. microwave oven

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US3428772A (en) * 1965-12-10 1969-02-18 Hellige & Co Gmbh F Microwave oven with rotatable shelf
US4140888A (en) * 1976-12-01 1979-02-20 Litton Systems, Inc. Dual-feed microwave oven
US4337384A (en) * 1979-08-01 1982-06-29 Matsushita Electric Industrial Co., Ltd. Cooking appliance of the hot air circulating type
US4329557A (en) * 1979-12-07 1982-05-11 General Electric Company Microwave oven with improved energy distribution
JPS56149531A (en) * 1980-04-22 1981-11-19 Sharp Corp Hot-air circulation type cooker
JPH0632295B2 (en) * 1988-04-04 1994-04-27 三洋電機株式会社 microwave
KR950014687A (en) * 1993-11-13 1995-06-16 이헌조 Microwave

Also Published As

Publication number Publication date
CA2227971A1 (en) 1997-03-06
MX9801484A (en) 1998-11-30
ATE209320T1 (en) 2001-12-15
EP0846244A1 (en) 1998-06-10
CN1200168A (en) 1998-11-25
US6002120A (en) 1999-12-14
KR19990044127A (en) 1999-06-25
DE69617248D1 (en) 2002-01-03
FR2738054B1 (en) 1999-01-22
KR100443454B1 (en) 2004-11-16
WO1997008497A1 (en) 1997-03-06
FR2738054A1 (en) 1997-02-28
JPH11511586A (en) 1999-10-05
CN1122784C (en) 2003-10-01

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