EP1030114A1 - Removable heating sub-assembly for electric oven - Google Patents

Removable heating sub-assembly for electric oven Download PDF

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Publication number
EP1030114A1
EP1030114A1 EP00420022A EP00420022A EP1030114A1 EP 1030114 A1 EP1030114 A1 EP 1030114A1 EP 00420022 A EP00420022 A EP 00420022A EP 00420022 A EP00420022 A EP 00420022A EP 1030114 A1 EP1030114 A1 EP 1030114A1
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EP
European Patent Office
Prior art keywords
grid
plate
heating
assembly
sub
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Granted
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EP00420022A
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German (de)
French (fr)
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EP1030114B1 (en
Inventor
Michel Philippe
Pascal Godel
Jean Claude Lorenzini
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SEB SA
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SEB 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/06—Arrangement or mounting of electric heating elements

Definitions

  • the present invention relates to the field of household ovens and relates in particular to a removable heating sub-assembly for such an oven, and more particularly the structure of this subset.
  • a removable sub-assembly for oven connected by a central outlet Such a subset includes heating elements arranged flat, a grid and a plate being arranged on both sides of the heating element extension plan.
  • This subset can be inserted one way or the other, so that present the plate facing the vault or the bottom of the oven.
  • the plate this sub-element only serves as a reflector, the grid making it possible to heat radiation food.
  • the structure of this subset is complex and its complicated cleaning, because the structure is not removable.
  • document US Pat. No. 5,272,317 also describes a reversible system heater, having, according to one embodiment, a grid and a plate, cooking can be carried out on the plate, or by radiation by the other side with a grid.
  • This sub-assembly is intended to replace an arch, floor, or can be placed in an intermediate position. he is however the only heating element in the oven and has no central connection. In addition, this sub-assembly cannot be easily cleaned, because its structure is not removable.
  • One of the objects of the present invention is the design of a subset oven heater which, like those described above, is removable and reversible, allowing the volume of the furnace to be divided so as to present several applications and uses, but which, moreover, is of simple structure, by presenting on one side a plate and on the other side the exposed resistance, the resistance being easily removable from the plate so that cleaning of both elements be facilitated.
  • the present invention is achieved using a removable sub-assembly of heater for household appliance, composed of a heating element comprising, at its ends, electrical connection pins intended for be connected to complementary pins located inside the oven in order of the electrical supply to the heating element, of a support grid on which is fixed said heating element, and a plate partially covering the grid and the heating element, characterized in that the plate and / or the grid include assembly means by elastic interlocking.
  • the present invention it is thus possible, by the present invention, to separate the grid carrying the heating element, the hob or reflector. It is indeed important, to be able to have, on such a removable sub-assembly, the plate only and resistance only so that they can be cleaned more easily, their mutual disconnection avoiding inaccessible areas where the grease, difficult to remove, can get lodged. It is then possible to put the plate in the dishwasher.
  • Another advantage linked to this possible disconnection between the grid and the plate, is to be able to use different plates depending on the type of cooking wish.
  • the assembly means are formed by an elastic means located on the grid, the plate being provided a U-shaped rim on two opposite sides, the elastic means making it possible to constrain and maintain the grid between the two edges of the plate.
  • This structure allows to present few elements to realize the function of support, which allows easy removal of the grid from the edges of the plate, while ensuring easy cleaning of the elements, and allowing reduce the costs associated with this function.
  • the heating sub-assembly according to the present invention is intended for be inserted in an oven at one or more predetermined height (s), in order to allow, by the additional heating power available, different and / or faster cooking modes.
  • the sub-assembly according to the present invention is composed of two parts.
  • the first, referenced 1, as illustrated in FIG. 1 and designated by the following heating grid, consists of a heating element 2 arranged in laces on uprights 10 of a flat grid 8. Maintaining this element in amounts is made for example, by welding points 14.
  • This element heater can be a shielded resistor or a coiled resistive element.
  • connection pin 4 representing the phase and neutral contacts when connecting the plate to the oven, for feeding heating element.
  • a pin 6, corresponding to the earth connection is located between these two pins 4.
  • the ground pin 6 is located on the middle of side 5 of the grid 8, the pins 4 neutral and phase being symmetrically arranged on either side of the earth pin.
  • Such an arrangement of pins will be referred to as a connection central in the following description.
  • the heating grid is thus reversible, since it has a central connection.
  • the second part of this sub-assembly is composed of a plate 20 such as shown in Figures 2 to 4.
  • This plate traditionally in enamelled aluminum, partially covers one of the faces defined by grid 1.
  • the plate 20 has two U-shaped edges 22 on two opposite sides of the plaque.
  • one of the flanges 22 has a opening 24 allowing passage of the central grid connection heater 1, as shown in Figures 3 and 4.
  • the grid is equipped with an elastic means 18 located on one of the edges of the grid 8, intended to cooperate with the flanges 22, that is to say, in this first embodiment, on the edge carrying the central connection, or the opposite.
  • this elastic means can be positioned on the plate 20, in particular inside the rim 22.
  • This elastic means can be produced in different ways: it can be a flexible blade, such as a curved metal blade, as in the example presented, or a spring type element, any device presenting elastic properties at 300 ° C which can be used without departing from the scope of present invention.
  • the elastic means 18 is constrained until the edge opposite can in turn be positioned against the plate 20 ( Figure 2b). From then, by releasing the pressure exerted on part 1, the elastic means relaxes and pushes the heating grid 1 under the flange 22 located opposite it, as shown in Figure 2c. The plate 20 is thus positioned on one of the faces of the grid 8 and of the heating grid 1.
  • the flange 22 where the elastic means is located is slightly longer than the facing flange, to allow the spring to exercise its reminder function.
  • the means elastic 18 is mostly hidden from the cooking atmosphere by the plate 20 and the rim 22, so as to avoid its premature fouling by various splashes during a cooking operation, fouling likely in particular to lead to the blocking of the return means 18.
  • the amounts 10 of the grid 8 have spacers 12 allowing, during positioning of the grid on the plate, to maintain the latter at a certain distance from the heating element, slightly moving the plate 20 apart of the heating element 2. This arrangement allows the heat to be distributed communicated to the plate 20 by the heating element 2.
  • Figure 3 shows the sub-assembly in a use where the plate is arranged under the heating element.
  • Such an arrangement in an oven, allows to use the heating element, together with the vault heating element oven to allow simultaneous grilling of both sides of a food located on a grid between the two heating elements.
  • the plate serves as a reflector and has advantageously a surface conducive to the reflection of heat, by its shape which can be slightly concave to concentrate the heat, as well as by material used.
  • Figure 4 shows the sub-assembly in a use where the plate is located on the heating element. This arrangement is simply obtained by returning the sub-assembly shown in Figure 3, the central connection allowing the reversible use of the sub-assembly.
  • the plate serves as a baking sheet and is advantageously made of a material which is a good heat conductor.
  • the heating grid 1 has a distance between the two sides of the plate not participating in maintaining the grid lower than the distance between the two sides of the corresponding grid.
  • Plate 20 is therefore smaller than the grid 8, in the dimension transverse to the device for maintenance.
  • An alternative embodiment of the present invention consists in using the two other edges of the plate as a grid retention means, which avoids opening 24 for the passage of the central connection, but requires secure the maintenance of the two constituent parts, the sliding of the grid in the plate not being totally excluded.
  • a flange 22 can be provided as in the example. presented, but the assembly means consist of at least one clip elastic 26 disposed on the plate and intended to cooperate with the grid 8, as as illustrated in FIG. 5.
  • the attachment of the clip (s) 26 can be carried out by any known means, allowing the grid to be held by its side opposite to the connection, or by each of the lateral sides, jointly with the flange 22.
  • FIG. 6 shows an improvement made to the protection of the pins connection 4 and 6. Indeed, when removing the heating sub-assembly, the protruding connection pins may be bent by impact with the environment.
  • So protective pins 30 slightly longer than the pins 4 and 6 are connected to the earth and arranged on the grid 8, on both sides others of said connection pins, thereby ensuring their protection.
  • these pins are slightly larger in diameter than the diameter pins carrying the phase and neutral contacts so as not to cooperate with the openings provided in the oven to receive said pins connection 4 and 6.
  • These protective pins 30, when connecting the sub-assembly of heaters, can be accommodated in openings provided for this purpose and located in the oven. These pins can also be mounted sliding against a return means in order to retract when connecting said sub-assembly in the oven.
  • connection pins due to shock Protection against deformation of connection pins due to shock can also be envisaged using a removable sliding or pivoting cover on the pins and covering the connection pins at least according to one faces of the heating sub-assembly.
  • this plate can be flat for baking like pie or pizza, or crenellated, wavy for cooking meat, this plate can integrate a rim to collect cooking juices.
  • the present invention therefore finds all its advantage by allowing you to quickly and easily change the plate associated with the grid carrying the heating element.
  • Figure 7 shows an example of a support plate variant used for a barbecue function in an oven, as explained below.
  • the plate, support of the grid provided with the heating element comprises a bottom 34 forming a bowl by its edges 32.
  • This plate always has the edges 22 allowing, with the edges 32, the holding of the heating grid 1.
  • the bowl, formed by the bottom 34 and the edges 32 collects the juices formed when cooking food placed on an intermediate grid, between the heating sub-element and the roof of the oven.
  • this grid is arranged on the edges 22 of the sub-assembly. heater, as shown in figure 8.
  • an intermediate grid 44 is connected to the plate support of the heating grid 1.
  • This grid is raised relative to the heating element so that the cooking of food disposed on said grid intermediate 44 is homogeneous.
  • the support plate comprises, in accordance with the invention, flanges 22 and 42 for holding the heating grid 1.
  • the intermediate grid 44 can adopt one of the previous configurations, it is to say have a flat bottom, as shown in Figures 3 and 4 in particular, or well, a bowl-shaped bottom, as shown in Figure 7.
  • the intermediate grid 44 is permanently installed on the plate support, the latter then has only two edges 42, such that shown in Figure 8, in order to be able to assemble and separate the heating grid 1 from the support plate. Dripping juices from food can then be collected in a drip pan placed under the heating sub-assembly.
  • the barbecue function can be easily implemented by the present invention which facilitates the cleaning of the various elements, cleaning made all the more more difficult by the presence of juice charred by heat.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)

Abstract

Sub-assembly has heating element (2), having at its ends electrical connections (4, 6) designed to be connected to complementary connections inside oven, maintaining grill (8), on which is fixed heating element, and plate (20), covering part of grill and heating element. Plate and/or the grill include spring assembly parts (18) fixed to grill or plate. Plate has U-shaped edge (22) on two opposite sides. Spring fitting maintains the grill between two U-shaped edges of plate.

Description

La présente invention se rapporte au domaine des fours électroménagers et concerne notamment un sous-ensemble de chauffe amovible pour un tel four, et plus particulièrement la structure de ce sous-ensemble.The present invention relates to the field of household ovens and relates in particular to a removable heating sub-assembly for such an oven, and more particularly the structure of this subset.

On connaít, par le document US 2,137,149, un sous-ensemble amovible pour four raccordé par une prise centrale. Un tel sous-ensemble comporte des éléments chauffants disposés à plat, une grille et une plaque étant agencées de part et d'autres du plan d'extension des éléments chauffants. Ce sous-ensemble peut être inséré dans un sens ou dans l'autre, de telle sorte à présenter la plaque orientée vers la voûte ou vers la sole du four. La plaque de ce sous-élément sert uniquement de réflecteur, la grille permettant de chauffer les aliments par radiation. La structure de ce sous-ensemble est complexe et son nettoyage compliqué, car la structure n'est pas démontable.We know, from document US 2,137,149, a removable sub-assembly for oven connected by a central outlet. Such a subset includes heating elements arranged flat, a grid and a plate being arranged on both sides of the heating element extension plan. This subset can be inserted one way or the other, so that present the plate facing the vault or the bottom of the oven. The plate this sub-element only serves as a reflector, the grid making it possible to heat radiation food. The structure of this subset is complex and its complicated cleaning, because the structure is not removable.

Par ailleurs, le document US 5,272,317 décrit également un système réversible de chauffage, possédant, selon un mode de réalisation, une grille et une plaque, la cuisson pouvant être effectuée sur la plaque, ou par radiation par l'autre face disposant d'une grille. Ce sous-ensemble est destiné à remplacer une résistance de voûte, de sole, ou peut être mis en position intermédiaire. Il est toutefois le seul élément chauffant du four et n'a pas de connexion centrale. De plus, ce sous-ensemble ne peut être nettoyé facilement, car sa structure n'est pas démontable.Furthermore, document US Pat. No. 5,272,317 also describes a reversible system heater, having, according to one embodiment, a grid and a plate, cooking can be carried out on the plate, or by radiation by the other side with a grid. This sub-assembly is intended to replace an arch, floor, or can be placed in an intermediate position. he is however the only heating element in the oven and has no central connection. In addition, this sub-assembly cannot be easily cleaned, because its structure is not removable.

L'un des objets de la présente invention est la conception d'un sous-ensemble de chauffe pour four qui, comme ceux décrits précédemment, est amovible et réversible, permettant de fractionner le volume du four pour ainsi présenter plusieurs applications et utilisations, mais qui, de plus, est de structure simple, en présentant d'un côté une plaque et de l'autre côté la résistance mise à nue, la résistance étant facilement démontable de la plaque afin que le nettoyage des deux éléments soit facilité.One of the objects of the present invention is the design of a subset oven heater which, like those described above, is removable and reversible, allowing the volume of the furnace to be divided so as to present several applications and uses, but which, moreover, is of simple structure, by presenting on one side a plate and on the other side the exposed resistance, the resistance being easily removable from the plate so that cleaning of both elements be facilitated.

La présente invention est atteinte à l'aide d'un sous-ensemble amovible de chauffe pour four électroménager, composé d'un élément chauffant comportant, à ses extrémités, des broches de connexion électrique destinées à être reliées à des broches complémentaires situées à l'intérieur du four en vue de l'alimentation électrique de l'élément chauffant, d'une grille de maintien sur laquelle est fixé ledit élément chauffant, et d'une plaque recouvrant en partie la grille et l'élément chauffant, caractérisé en ce que la plaque et/ou la grille comprennent des moyens d'assemblage par emboítement élastique.The present invention is achieved using a removable sub-assembly of heater for household appliance, composed of a heating element comprising, at its ends, electrical connection pins intended for be connected to complementary pins located inside the oven in order of the electrical supply to the heating element, of a support grid on which is fixed said heating element, and a plate partially covering the grid and the heating element, characterized in that the plate and / or the grid include assembly means by elastic interlocking.

Il est ainsi possible, par la présente invention, de séparer la grille portant l'élément chauffant, de la plaque de cuisson ou réflecteur. Il est en effet important, de pouvoir disposer, sur un tel sous-ensemble amovible, de la plaque seule et de la résistance seule afin de pouvoir les nettoyer plus facilement, leur déconnexion mutuelle évitant les zones inaccessibles où la graisse, difficile à enlever, peut se loger. Il est alors possible de mettre la plaque au lave-vaisselle.It is thus possible, by the present invention, to separate the grid carrying the heating element, the hob or reflector. It is indeed important, to be able to have, on such a removable sub-assembly, the plate only and resistance only so that they can be cleaned more easily, their mutual disconnection avoiding inaccessible areas where the grease, difficult to remove, can get lodged. It is then possible to put the plate in the dishwasher.

Par ailleurs, un autre avantage lié à cette déconnexion possible entre la grille et la plaque, est de pouvoir utiliser différentes plaques selon le type de cuisson souhaité.Another advantage linked to this possible disconnection between the grid and the plate, is to be able to use different plates depending on the type of cooking wish.

Selon une des réalisations possibles de l'invention, les moyens d'assemblage sont constitués par un moyen élastique situé sur la grille, la plaque étant pourvu d'un rebord en U sur deux cotés opposés, le moyen élastique permettant de contraindre et de maintenir la grille entre les deux rebords de la plaque.According to one of the possible embodiments of the invention, the assembly means are formed by an elastic means located on the grid, the plate being provided a U-shaped rim on two opposite sides, the elastic means making it possible to constrain and maintain the grid between the two edges of the plate.

Cette structure permet de présenter peu d'éléments pour réaliser la fonction de maintien, ce qui permet un démontage facile de la grille hors des rebords de la plaque, tout en assurant un nettoyage facile des éléments, et en permettant de réduire les coûts associés à cette fonction. This structure allows to present few elements to realize the function of support, which allows easy removal of the grid from the edges of the plate, while ensuring easy cleaning of the elements, and allowing reduce the costs associated with this function.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description suivante, présentant une forme de réalisation de l'objet de l'invention, donnée à titre d'exemple non limitatif, aux dessins annexés.

  • La figure 1 représente la grille du sous-ensemble portant l'élément chauffant, dans une vue de face.
  • Les figures 2a, 2b et 2c montrent le principe de maintien de la plaque sur la grille, dans une vue de profil.
  • La figure 3 est une vue en perspective du sous-ensemble, selon une première utilisation, avec la résistance face à la voûte.
  • La figure 4 est une vue analogue à la précédente, selon une deuxième utilisation, avec la résistance face à la sole.
  • La figure 5 présente une variante de réalisation du maintien de la plaque sur la grille.
  • La figure 6 présente un dispositif de protection des broches de connexion.
  • Les figures 7 et 8 présentent d'autres variantes de réalisation de l'invention.
Other characteristics and advantages of the present invention will emerge from the following description, presenting an embodiment of the object of the invention, given by way of nonlimiting example, in the appended drawings.
  • Figure 1 shows the grid of the sub-assembly carrying the heating element, in a front view.
  • Figures 2a, 2b and 2c show the principle of holding the plate on the grid, in a side view.
  • Figure 3 is a perspective view of the sub-assembly, according to a first use, with the resistance facing the arch.
  • Figure 4 is a view similar to the previous, according to a second use, with the resistance facing the floor.
  • Figure 5 shows an alternative embodiment of the maintenance of the plate on the grid.
  • FIG. 6 shows a device for protecting the connection pins.
  • Figures 7 and 8 show other alternative embodiments of the invention.

Le sous-ensemble de chauffe conforme à la présente invention est destiné à être inséré dans un four à une ou plusieurs hauteur(s) prédéterminée(s), afin de permettre, par la puissance de chauffe supplémentaire disponible, des modes de cuisson différents et/ou plus rapides.The heating sub-assembly according to the present invention is intended for be inserted in an oven at one or more predetermined height (s), in order to allow, by the additional heating power available, different and / or faster cooking modes.

Le sous-ensemble conforme à la présente invention est composé de deux parties. La première, référencée 1, telle qu'illustrée figure 1 et dénommée par la suite grille chauffante, est constituée d'un élément chauffant 2 disposé en lacets sur des montants 10 d'une grille 8 plane. Le maintien de cet élément aux montants est réalisé par exemple, par des points de soudure 14. Cet élément chauffant peut être une résistance blindée ou un élément résistif bobiné.The sub-assembly according to the present invention is composed of two parts. The first, referenced 1, as illustrated in FIG. 1 and designated by the following heating grid, consists of a heating element 2 arranged in laces on uprights 10 of a flat grid 8. Maintaining this element in amounts is made for example, by welding points 14. This element heater can be a shielded resistor or a coiled resistive element.

Les extrémités de cet élément sont proches l'une de l'autre et portent chacune une broche de connexion 4 représentant les contacts de phase et de neutre lors de la connexion de la plaque dans le four, en vue de l'alimentation électrique de l'élément chauffant. De plus, une broche 6, correspondant à la connexion de terre, est située entre ces deux broches 4.The ends of this element are close to each other and each carry a connection pin 4 representing the phase and neutral contacts when connecting the plate to the oven, for feeding heating element. In addition, a pin 6, corresponding to the earth connection, is located between these two pins 4.

La broche 6 de terre est située sur le milieu du côté 5 de la grille 8, les broches 4 de neutre et de phase étant symétriquement disposées de part et d'autres de la broche de terre. Un tel agencement de broches sera dénommé connexion centrale dans la suite de la description. La grille chauffante est ainsi réversible, puisqu'elle dispose d'une connexion centrale.The ground pin 6 is located on the middle of side 5 of the grid 8, the pins 4 neutral and phase being symmetrically arranged on either side of the earth pin. Such an arrangement of pins will be referred to as a connection central in the following description. The heating grid is thus reversible, since it has a central connection.

La deuxième partie de ce sous-ensemble est composée d'une plaque 20 telle que représentée aux figures 2 à 4. Cette plaque, traditionnellement en aluminium émaillé, recouvre en partie l'une des faces définies par la grille 1.The second part of this sub-assembly is composed of a plate 20 such as shown in Figures 2 to 4. This plate, traditionally in enamelled aluminum, partially covers one of the faces defined by grid 1.

Selon l'une des variantes de réalisation de l'invention, présentée figures 2a à 2c, la plaque 20 dispose de deux rebords 22 en U sur deux cotés opposés de la plaque.According to one of the variant embodiments of the invention, presented in FIGS. 2a to 2c, the plate 20 has two U-shaped edges 22 on two opposite sides of the plaque.

Selon un mode préféré d'élaboration, un des rebords 22 dispose d'une ouverture 24 permettant le passage de la connexion centrale de la grille chauffante 1, tel qu'il est visible aux figures 3 et 4. Selon ce mode de réalisation, la grille est équipée d'un moyen élastique 18 localisé sur l'un des bords de la grille 8, destiné à coopérer avec les rebords 22, c'est à dire, dans ce premier mode de réalisation, sur le bord portant la connexion centrale, ou à l'opposé.According to a preferred embodiment, one of the flanges 22 has a opening 24 allowing passage of the central grid connection heater 1, as shown in Figures 3 and 4. According to this mode of embodiment, the grid is equipped with an elastic means 18 located on one of the edges of the grid 8, intended to cooperate with the flanges 22, that is to say, in this first embodiment, on the edge carrying the central connection, or the opposite.

Selon un autre mode de réalisation, ce moyen élastique peut être positionné sur la plaque 20, notamment à l'intérieur du rebord 22.According to another embodiment, this elastic means can be positioned on the plate 20, in particular inside the rim 22.

Ce moyen élastique peut être réalisé de différentes façons : ce peut être une lame flexible, telle une lame métallique courbée, comme dans l'exemple présenté, ou un élément de type ressort, tout dispositif présentant des propriétés élastiques à 300 °C pouvant être utilisé sans sortir du cadre de la présente invention. This elastic means can be produced in different ways: it can be a flexible blade, such as a curved metal blade, as in the example presented, or a spring type element, any device presenting elastic properties at 300 ° C which can be used without departing from the scope of present invention.

Ainsi, en introduisant un bord de la grille chauffante 1, en biais, tel que le montre la figure 2a, le moyen élastique 18 est contraint jusqu'à ce que le bord opposé puisse être à son tour positionné contre la plaque 20 (figure 2b). Dès lors, en relâchant la pression exercée sur la partie 1, le moyen élastique se détend, et repousse la grille chauffante 1 sous le rebord 22 situé à son opposé, comme indiqué figure 2c. La plaque 20 se trouve ainsi positionnée sur l'une des faces de la grille 8 et de la grille chauffante 1.Thus, by introducing an edge of the heating grid 1, at an angle, such as the shows Figure 2a, the elastic means 18 is constrained until the edge opposite can in turn be positioned against the plate 20 (Figure 2b). From then, by releasing the pressure exerted on part 1, the elastic means relaxes and pushes the heating grid 1 under the flange 22 located opposite it, as shown in Figure 2c. The plate 20 is thus positioned on one of the faces of the grid 8 and of the heating grid 1.

Selon ce mode de réalisation, le rebord 22 où est situé le moyen élastique est légèrement plus long que le rebord en vis-à-vis, afin de permettre au ressort d'exercer sa fonction de rappel.According to this embodiment, the flange 22 where the elastic means is located is slightly longer than the facing flange, to allow the spring to exercise its reminder function.

Avantageusement, comme il est bien visible sur les figures 2a à 2c, le moyen élastique 18 est en majorité dissimulé de l'ambiance de cuisson par la plaque 20 et le rebord 22, de manière à éviter son encrassement prématuré par des projections diverses lors d'une opération de cuisson, encrassement susceptible notamment de conduire au blocage du moyen de rappel 18.Advantageously, as is clearly visible in FIGS. 2a to 2c, the means elastic 18 is mostly hidden from the cooking atmosphere by the plate 20 and the rim 22, so as to avoid its premature fouling by various splashes during a cooking operation, fouling likely in particular to lead to the blocking of the return means 18.

Selon une variante de ce premier mode de réalisation, les montants 10 de la grille 8 possèdent des cales d'espacement 12 permettant, lors du positionnement de la grille sur la plaque, de maintenir cette dernière à une certaine distance de l'élément chauffant, en écartant légèrement la plaque 20 de l'élément chauffant 2. Cette disposition permet de répartir la chaleur communiquée à la plaque 20 par l'élément chauffant 2.According to a variant of this first embodiment, the amounts 10 of the grid 8 have spacers 12 allowing, during positioning of the grid on the plate, to maintain the latter at a certain distance from the heating element, slightly moving the plate 20 apart of the heating element 2. This arrangement allows the heat to be distributed communicated to the plate 20 by the heating element 2.

Un tel sous-ensemble est donc facilement démontable puisqu'il suffit de saisir la grille et d'effectuer son retrait en faisant jouer l'élasticité du moyen d'assemblage élastique 18.Such a sub-assembly is therefore easily removable since it suffices to grasp the grid and effect its removal by making use of the elasticity of the means elastic assembly 18.

La figure 3 présente le sous-ensemble dans une utilisation où la plaque est disposée sous l'élément chauffant. Une telle disposition, dans un four, permet d'utiliser l'élément chauffant, conjointement avec l'élément chauffant de voûte du four afin de permettre un grillage simultané des deux faces d'un aliment situé sur une grille entre les deux éléments chauffants.Figure 3 shows the sub-assembly in a use where the plate is arranged under the heating element. Such an arrangement, in an oven, allows to use the heating element, together with the vault heating element oven to allow simultaneous grilling of both sides of a food located on a grid between the two heating elements.

Selon cette utilisation, la plaque sert de réflecteur et présente avantageusement une surface propice à la réflexion de la chaleur, par sa forme qui peut être légèrement concave pour concentrer la chaleur, ainsi que par la matière utilisée.According to this use, the plate serves as a reflector and has advantageously a surface conducive to the reflection of heat, by its shape which can be slightly concave to concentrate the heat, as well as by material used.

La figure 4 présente le sous-ensemble dans une utilisation où la plaque est située sur l'élément chauffant. Cette disposition est simplement obtenue en retournant le sous-ensemble présenté figure 3, la connexion centrale permettant l'utilisation réversible du sous-ensemble.Figure 4 shows the sub-assembly in a use where the plate is located on the heating element. This arrangement is simply obtained by returning the sub-assembly shown in Figure 3, the central connection allowing the reversible use of the sub-assembly.

Dans l'utilisation présentée figure 4, la plaque sert de plaque de cuisson et est avantageusement en un matériau bon conducteur de chaleur.In the use shown in Figure 4, the plate serves as a baking sheet and is advantageously made of a material which is a good heat conductor.

Avantageusement, la grille chauffante 1 présente une distance entre les deux côtés de la plaque ne participant pas au maintien de la grille inférieure à la distance séparant les deux côtés de la grille correspondants. La plaque 20 est donc plus petite que la grille 8, dans la dimension transversale au dispositif de maintien. Cette structure permet de positionner le sous-ensemble de chauffe dans le four par l'intermédiaire des bords 28 sur les glissières généralement prévues à cet effet dans la plupart des fours.Advantageously, the heating grid 1 has a distance between the two sides of the plate not participating in maintaining the grid lower than the distance between the two sides of the corresponding grid. Plate 20 is therefore smaller than the grid 8, in the dimension transverse to the device for maintenance. This structure makes it possible to position the heating sub-assembly in the oven through the edges 28 on the runners usually provided for this purpose in most ovens.

Une variante de réalisation de la présente invention consiste à utiliser les deux autres bords de la plaque comme moyen de rétention de la grille, ce qui évite l'ouverture 24 pour le passage de la connexion centrale, mais nécessite de sécuriser le maintien des deux parties constitutives, le coulissement de la grille dans la plaque n'étant pas totalement exclu.An alternative embodiment of the present invention consists in using the two other edges of the plate as a grid retention means, which avoids opening 24 for the passage of the central connection, but requires secure the maintenance of the two constituent parts, the sliding of the grid in the plate not being totally excluded.

D'autres variantes de réalisation du maintien de la plaque à la grille peuvent être utilisées. Ainsi, il peut être prévu un rebord 22 comme dans l'exemple présenté, mais les moyens d'assemblage sont constitués par au moins un clips élastique 26 disposé sur la plaque et destiné à coopérer avec la grille 8, tel qu'illustré figure 5. La fixation du ou des clips 26 peut être réalisée par tout moyen connu, permettant de maintenir la grille par son côté opposé à la connexion, ou par chacun des côtés latéraux, conjointement avec le rebord 22.Other alternative embodiments for holding the plate to the grid can be used. Thus, a flange 22 can be provided as in the example. presented, but the assembly means consist of at least one clip elastic 26 disposed on the plate and intended to cooperate with the grid 8, as as illustrated in FIG. 5. The attachment of the clip (s) 26 can be carried out by any known means, allowing the grid to be held by its side opposite to the connection, or by each of the lateral sides, jointly with the flange 22.

La figure 6 présente un perfectionnement apporté à la protection des broches de connexion 4 et 6. En effet, lors du retrait du sous-ensemble chauffant, les broches de connexion faisant saillie risquent de se déformer par heurts avec l'environnement.FIG. 6 shows an improvement made to the protection of the pins connection 4 and 6. Indeed, when removing the heating sub-assembly, the protruding connection pins may be bent by impact with the environment.

Ainsi, des broches de protection 30 légèrement plus longues que les broches de connexion 4 et 6 sont reliées à la terre et disposées sur la grille 8, de part et d'autres desdites broches de connexion, assurant ainsi leur protection. De préférence, ces broches sont d'un diamètre légèrement supérieur au diamètre des broches portant les contacts de phase et de neutre afin de ne pas coopérer avec les ouvertures prévues dans le four pour recevoir lesdites broches de connexion 4 et 6.So protective pins 30 slightly longer than the pins 4 and 6 are connected to the earth and arranged on the grid 8, on both sides others of said connection pins, thereby ensuring their protection. Of preferably, these pins are slightly larger in diameter than the diameter pins carrying the phase and neutral contacts so as not to cooperate with the openings provided in the oven to receive said pins connection 4 and 6.

Ces broches de protection 30, lors de la connexion du sous-ensemble de chauffe, peuvent venir se loger dans des ouvertures prévues à cet effet et localisées dans le four. Ces broches peuvent aussi être montées coulissantes contre un moyen de rappel afin de s'escamoter lors de la connexion dudit sous-ensemble dans le four.These protective pins 30, when connecting the sub-assembly of heaters, can be accommodated in openings provided for this purpose and located in the oven. These pins can also be mounted sliding against a return means in order to retract when connecting said sub-assembly in the oven.

La protection contre la déformation des broches de connexion due à un choc peut être aussi envisagée à l'aide d'un capot amovible coulissant ou pivotant sur les broches et recouvrant les broches de connexion au moins selon l'une des faces du sous-ensemble chauffant.Protection against deformation of connection pins due to shock can also be envisaged using a removable sliding or pivoting cover on the pins and covering the connection pins at least according to one faces of the heating sub-assembly.

D'autres variantes de réalisation de l'invention peuvent être envisagées, notamment en ce qui concerne la plaque support. En effet, cette plaque peut être plane pour une cuisson de type tarte ou pizza, ou crénelée, ondulée pour la cuisson de viandes, cette plaque pouvant intégrer un rebord afin de recueillir les jus de cuisson. Other alternative embodiments of the invention can be envisaged, especially with regard to the support plate. Indeed, this plate can be flat for baking like pie or pizza, or crenellated, wavy for cooking meat, this plate can integrate a rim to collect cooking juices.

Il est ainsi possible de choisir une plaque plane à fort coefficient de conduction pour la cuisson, ou au contraire une plaque à faible pouvoir de conduction et réfléchissante, afin de diriger l'énergie du côté de la grille.It is thus possible to choose a flat plate with a high coefficient of conduction for cooking, or on the contrary a plate with low conduction power and reflective, to direct energy to the side of the grid.

Selon donc l'utilisation qui en est faite, diverses plaques aux caractéristiques différentes peuvent être utilisées. La présente invention trouve donc tout son intérêt en permettant de changer rapidement et facilement la plaque associée à la grille portant l'élément chauffant.Depending on the use made of it, various plates with characteristics different can be used. The present invention therefore finds all its advantage by allowing you to quickly and easily change the plate associated with the grid carrying the heating element.

La figure 7 présente un exemple de variante de plaque support utilisée pour une fonction barbecue dans un four, comme expliqué ci-dessous.Figure 7 shows an example of a support plate variant used for a barbecue function in an oven, as explained below.

Ainsi, en référence à la figure 7, la plaque, support de la grille munie de l'élément chauffant, comporte un fond 34 formant cuvette par ses bords 32. Cette plaque comporte toujours les rebords 22 permettant, avec les bords 32, la tenue de la grille chauffante 1. La cuvette, formée par le fond 34 et les bords 32 permet de recueillir les jus formés lors de la cuisson d'aliments placés sur une grille intermédiaire, entre le sous-élément chauffant et la voûte du four. Avantageusement cette grille est disposée sur les bords 22 du sous-ensemble chauffant, tel que présenté figure 8.Thus, with reference to FIG. 7, the plate, support of the grid provided with the heating element comprises a bottom 34 forming a bowl by its edges 32. This plate always has the edges 22 allowing, with the edges 32, the holding of the heating grid 1. The bowl, formed by the bottom 34 and the edges 32 collects the juices formed when cooking food placed on an intermediate grid, between the heating sub-element and the roof of the oven. Advantageously, this grid is arranged on the edges 22 of the sub-assembly. heater, as shown in figure 8.

Sur cet exemple, une grille intermédiaire 44, est en liaison avec la plaque support de la grille chauffante 1. Cette grille est surélevée par rapport à l'élément chauffant afin que la cuisson d'aliments disposés sur ladite grille intermédiaire 44 soit homogène. La plaque support comporte, conformément à l'invention, des rebords 22 et 42 pour le maintien de la grille chauffante 1. Dans le cas où la grille intermédiaire 44 est disposée de façon amovible sur la plaque support, cette dernière peut adopter l'une des configurations précédentes, c'est à dire posséder un fond plat, tel que présenté aux figures 3 et 4 notamment, ou bien un fond en forme de cuvette, tel que présenté figure 7.In this example, an intermediate grid 44 is connected to the plate support of the heating grid 1. This grid is raised relative to the heating element so that the cooking of food disposed on said grid intermediate 44 is homogeneous. The support plate comprises, in accordance with the invention, flanges 22 and 42 for holding the heating grid 1. In the case where the intermediate grid 44 is removably disposed on the plate support, the latter can adopt one of the previous configurations, it is to say have a flat bottom, as shown in Figures 3 and 4 in particular, or well, a bowl-shaped bottom, as shown in Figure 7.

Dans le cas où la grille intermédiaire 44 est disposée à demeure sur la plaque support, cette dernière présente alors uniquement deux rebords 42, tel que présenté figure 8, afin de pouvoir assembler et séparer la grille chauffante 1 de la plaque support. Les jus dégouttants des aliments peuvent alors être recueillis dans un lèchefrite disposé sous le sous-ensemble chauffant.In the case where the intermediate grid 44 is permanently installed on the plate support, the latter then has only two edges 42, such that shown in Figure 8, in order to be able to assemble and separate the heating grid 1 from the support plate. Dripping juices from food can then be collected in a drip pan placed under the heating sub-assembly.

Ainsi, la fonction barbecue peut être facilement mise en oeuvre par la présente invention qui facilite le nettoyage des divers éléments, nettoyage rendu d'autant plus difficile par la présence de jus carbonisé par la chaleur.Thus, the barbecue function can be easily implemented by the present invention which facilitates the cleaning of the various elements, cleaning made all the more more difficult by the presence of juice charred by heat.

Claims (11)

Sous-ensemble amovible de chauffe pour four électroménager, composé d'un élément chauffant (2) comportant, à ses extrémités, des broches de connexion électrique (4, 6) destinées à être reliées à des broches complémentaires situées à l'intérieur du four en vue de l'alimentation électrique de l'élément chauffant (2), d'une grille de maintien (8) sur laquelle est fixé ledit élément chauffant (2), et d'une plaque (20) recouvrant en partie la grille (8) et l'élément chauffant (2), caractérisé en ce que la plaque (20) et/ou la grille (8) comprennent des moyens d'assemblage par emboítement élastique.Removable heating sub-assembly for household appliances, consisting of a heating element (2) having, at its ends, pins electrical connection (4, 6) intended to be connected to pins inside the oven for feeding heating element (2), a retaining grid (8) on which is fixed said heating element (2), and a plate (20) partially covering the grid (8) and the heating element (2), characterized in that the plate (20) and / or the grid (8) include means of assembly by elastic interlocking. Sous-ensemble de chauffe selon la revendication précédente, caractérisé en ce que les moyens d'assemblage sont constitués par un moyen élastique (18) situé sur la grille (8) ou sur la plaque (20), ladite plaque (20) étant pourvue d'un rebord (22) en U sur deux cotés opposés, le moyen élastique (18) permettant de contraindre et de maintenir la grille (8) entre les deux rebords (22) de la plaque.Heating subassembly according to the preceding claim, characterized in that the assembly means are constituted by a means elastic (18) located on the grid (8) or on the plate (20), said plate (20) being provided with a U-shaped rim (22) on two opposite sides, the means elastic (18) allowing to constrain and maintain the grid (8) between the two edges (22) of the plate. Sous-ensemble de chauffe selon la revendication précédente, caractérisé en ce que la plaque (20) dispose d'une ouverture (24) dans l'un de ses rebords (22) afin de permettre le passage des broches de connexion (4,6).Heating subassembly according to the preceding claim, characterized in that the plate (20) has an opening (24) in one of its flanges (22) to allow passage of the connection pins (4.6). Sous-ensemble de chauffe selon la revendication 1, caractérisé en ce que les moyens d'assemblage sont constitués par au moins un clips élastique (26) disposé sur la plaque (20) et destiné à coopérer avec la grille (8).Heating subassembly according to claim 1, characterized in that the assembly means consist of at least one elastic clip (26) disposed on the plate (20) and intended to cooperate with the grid (8). Sous-ensemble de chauffe selon l'une des revendications précédentes, caractérisé en ce que la grille (8) possède des cales d'espacement (12) permettant, lors du positionnement de la grille (8) sur la plaque (20), de maintenir cette dernière à une certaine distance de l'élément chauffant (2). Heating sub-assembly according to one of the preceding claims, characterized in that the grid (8) has spacers (12) allowing, when positioning the grid (8) on the plate (20), to keep the latter at a certain distance from the heating element (2). Sous-ensemble de chauffe selon l'une des revendications précédentes, caractérisé en ce que la distance entre les deux cotés de la plaque (28) ne participant pas au maintien de la grille (8), est inférieure à la distance séparant les deux autres cotés de ladite grille (8).Heating sub-assembly according to one of the preceding claims, characterized in that the distance between the two sides of the plate (28) not participating in the maintenance of the grid (8), is less than the distance separating the other two sides of said grid (8). Sous-ensemble de chauffe selon l'une des revendications précédentes, caractérisé en ce qu'il est réversible, la broche de connexion électrique de terre étant située au milieu de l'un des cotés (5) de la grille (8), les broches de phase et de neutre (4) étant situées de part et d'autres de la broche de terre (6) et de façon symétrique, autorisant ainsi la connexion de la grille (8) au four en présentant la plaque (20) sous l'élément chauffant (2) ou bien sur l'élément chauffant (2).Heating sub-assembly according to one of the preceding claims, characterized in that it is reversible, the electrical connection pin of earth being located in the middle of one of the sides (5) of the grid (8), the phase and neutral pins (4) being located on either side of the earth pin (6) and symmetrically, allowing connection from the rack (8) to the oven by presenting the plate (20) under the element heater (2) or on the heating element (2). Sous-ensemble de chauffe selon l'une des revendications précédentes, caractérisé en ce que la broche de terre (6) est reliée à la grille (8).Heating sub-assembly according to one of the preceding claims, characterized in that the earth pin (6) is connected to the grid (8). Sous-ensemble de chauffe selon l'une des revendications précédentes, caractérisé en ce que des broches de protection (30) sont disposées sur la grille (8), de part et d'autre des broches de neutre et de phase (4).Heating sub-assembly according to one of the preceding claims, characterized in that protective pins (30) are arranged on the grid (8), on either side of the neutral and phase pins (4). Sous-ensemble de chauffe selon l'une des revendications 1 à 8, caractérisé en ce qu'un capot amovible coulissant ou pivotant recouvre les broches de connexion (4, 6) au moins selon l'une des faces du sous-ensemble chauffant.Heating sub-assembly according to one of claims 1 to 8, characterized in that a removable sliding or pivoting cover covers the connection pins (4, 6) at least along one of the faces of the sub-assembly heating. Four électroménager comportant un sous-ensemble de chauffe conforme à l'une des revendications 1 à 10.Household appliance with a compliant heating sub-assembly to one of claims 1 to 10.
EP00420022A 1999-02-15 2000-02-02 Removable heating sub-assembly for electric oven Expired - Lifetime EP1030114B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9902188 1999-02-15
FR9902188A FR2789753B1 (en) 1999-02-15 1999-02-15 REMOVABLE HEATER SUB-ASSEMBLY FOR HOUSEHOLD APPLIANCES

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EP1030114A1 true EP1030114A1 (en) 2000-08-23
EP1030114B1 EP1030114B1 (en) 2003-08-20

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AT (1) ATE247803T1 (en)
DE (1) DE60004581T2 (en)
FR (1) FR2789753B1 (en)

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US10551056B2 (en) 2017-02-23 2020-02-04 Whirlpool Corporation Burner base
US10619862B2 (en) 2018-06-28 2020-04-14 Whirlpool Corporation Frontal cooling towers for a ventilation system of a cooking appliance
US10627116B2 (en) 2018-06-26 2020-04-21 Whirlpool Corporation Ventilation system for cooking appliance
US10660162B2 (en) 2017-03-16 2020-05-19 Whirlpool Corporation Power delivery system for an induction cooktop with multi-output inverters
US10837652B2 (en) 2018-07-18 2020-11-17 Whirlpool Corporation Appliance secondary door
US10837651B2 (en) 2015-09-24 2020-11-17 Whirlpool Corporation Oven cavity connector for operating power accessory trays for cooking appliance
US11777190B2 (en) 2015-12-29 2023-10-03 Whirlpool Corporation Appliance including an antenna using a portion of appliance as a ground plane

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US20130306051A1 (en) * 2012-05-16 2013-11-21 Bsh Home Appliances Corporation Home appliance with unitary bake element retainer
US9057525B2 (en) * 2012-05-16 2015-06-16 Bsh Home Appliances Corporation Home appliance with unitary bake element retainer
CN103349510B (en) * 2013-07-16 2016-01-20 宁波凯波集团有限公司 High-efficiency and energy-saving type exchangeable disc baking oven
CN103349510A (en) * 2013-07-16 2013-10-16 宁波凯波集团有限公司 Efficient and energy-saving type oven with replaceable trays
USD835775S1 (en) 2015-09-17 2018-12-11 Whirlpool Corporation Gas burner
US10837651B2 (en) 2015-09-24 2020-11-17 Whirlpool Corporation Oven cavity connector for operating power accessory trays for cooking appliance
US11460195B2 (en) 2015-09-24 2022-10-04 Whirlpool Corporation Oven cavity connector for operating power accessory trays for cooking appliance
US11777190B2 (en) 2015-12-29 2023-10-03 Whirlpool Corporation Appliance including an antenna using a portion of appliance as a ground plane
US10145568B2 (en) 2016-06-27 2018-12-04 Whirlpool Corporation High efficiency high power inner flame burner
US10551056B2 (en) 2017-02-23 2020-02-04 Whirlpool Corporation Burner base
US10451290B2 (en) 2017-03-07 2019-10-22 Whirlpool Corporation Forced convection steam assembly
US10660162B2 (en) 2017-03-16 2020-05-19 Whirlpool Corporation Power delivery system for an induction cooktop with multi-output inverters
US10627116B2 (en) 2018-06-26 2020-04-21 Whirlpool Corporation Ventilation system for cooking appliance
US11226106B2 (en) 2018-06-26 2022-01-18 Whirlpool Corporation Ventilation system for cooking appliance
US10619862B2 (en) 2018-06-28 2020-04-14 Whirlpool Corporation Frontal cooling towers for a ventilation system of a cooking appliance
US11137145B2 (en) 2018-06-28 2021-10-05 Whirlpool Corporation Frontal cooling towers for a ventilation system of a cooking appliance
US10837652B2 (en) 2018-07-18 2020-11-17 Whirlpool Corporation Appliance secondary door

Also Published As

Publication number Publication date
DE60004581T2 (en) 2004-06-24
FR2789753A1 (en) 2000-08-18
EP1030114B1 (en) 2003-08-20
DE60004581D1 (en) 2003-09-25
ATE247803T1 (en) 2003-09-15
FR2789753B1 (en) 2001-05-18

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