EP0663567A1 - Ventilating system for cooking top or the like - Google Patents

Ventilating system for cooking top or the like Download PDF

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Publication number
EP0663567A1
EP0663567A1 EP95400040A EP95400040A EP0663567A1 EP 0663567 A1 EP0663567 A1 EP 0663567A1 EP 95400040 A EP95400040 A EP 95400040A EP 95400040 A EP95400040 A EP 95400040A EP 0663567 A1 EP0663567 A1 EP 0663567A1
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EP
European Patent Office
Prior art keywords
box
fan
ventilation system
passages
air
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Granted
Application number
EP95400040A
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German (de)
French (fr)
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EP0663567B1 (en
Inventor
Sylvain Bickel
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Merloni Electromenager SA
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Scholtes Ste
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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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/101—Tops, e.g. hot plates; Rings provisions for circulation of air

Definitions

  • the present invention relates to a ventilation system for a table or similar cooking appliance, comprising in particular an upper plate of reinforced glass or of a transparent ceramic material, heating zones distributed under the plate and a box in which these zones are mounted. and their electrical power supply and operating control members, this box being fixed under the plate and forming with it a one-piece assembly, of relatively reduced thickness and whose generally square or rectangular outline allows it to be embedded in a suitable housing at the top of a piece of furniture or similar support element, which fits into the layout of a domestic or other kitchen.
  • a fan is conventionally used (see FR-A-2 417 725), of the centrifugal type or of the so-called tangential type, the thickness dimensions of which can be reduced enough to allow it to be housed in the mounted box. under the plate inside the table.
  • the fan must have an air intake and a discharge section of sufficient size.
  • the suction is carried out directly in the cabinet, which requires practicing in the latter suitable openings with cutouts of the floor, the bottom and if necessary the drawer or the door of this furniture, surrounding the housing of the box, the discharge generally takes place in the rear part of the box, opposite its front face visible from the outside.
  • the present invention relates to a ventilation system for a hob which avoids these drawbacks, this table with its ceramic glass upper plate and its lower casing forming an autonomous assembly, capable of being cooled in operation without requiring any air intake to be produced. in the cabinet where it fits.
  • the system considered, for a hob having a glass plate or the like at its upper part, a lower flat box, integral with the plate and placed under it, this box housing one and preferably several hearths of heating mounted inside the box and of the electrical and electronic organs for controlling and regulating these fireplaces, as well as a cooling fan, is characterized in that the glass plate is supported by a peripheral angle of the box, this angle resting by means of a horizontal bearing surface on a piece of furniture receiving the table in a recess space of corresponding dimensions and having a substantially vertical rim provided with a lateral extension to which the plate is applied inside the angle iron, this rim being provided with passages respectively for the entry of ambient air sucked in by the fan and for the exit of this air after discharge inside the box, these passages being preferably arranged in opposite sides of the angle iron.
  • the air inlet passages formed in the edge of the angle iron are provided towards the front of the box and the outlet passages towards the rear of the latter.
  • these passages can be provided on the lateral sides of the angle iron.
  • the peripheral angle surrounding the glass plate is hollow and has a slightly rounded outward return whose end is in contact with the horizontal bearing surface of the table.
  • the box has a bottom bottom formed of a flat sheet or has a double bottom delimited by two parallel sheets providing between them a space for circulation of the air discharged by the fan.
  • the fan is housed inside the box near the side of the box having the air inlet orifices.
  • the reference 1 designates a hob consisting of an upper plate 2, made of reinforced glass or of a vitroceramic material and of a lower box 3, placed under the plate 2 and containing in particular heating zones (not shown), suitably distributed under the plate, these fireplaces may include, as the case may be, electric resistances, halogen lamps delivering infrared radiation or even magnetic coils to produce induction heating by coupling with metal utensils placed on top of plate 2.
  • the table 1 is designed to be embedded inside a support unit 4 having a housing 5 of suitable dimensions in which the table 1 and in particular the box 3 is placed, placed under the glass plate 2.
  • the table 1 rests on a horizontal bearing surface 6 of the cabinet 4 by means of a metal angle iron 7 comprising a lateral extension 8 to which the external peripheral edge of the plate 2 is applied, this extension comprising a substantially vertical rim 9 surrounding at its periphery the glass plate.
  • the flange 9 extending from the extension 8 supporting the plate 2 may have an end 10 closed on itself, as shown in Figure 1, or extend by a return 11 extending towards the exterior as illustrated in FIG. 2, this return having in this case a rounded profile terminated by a folded end 12 coming into contact or in the immediate vicinity of the bearing surface 6.
  • the angle iron 7 comprises a plurality of passages such as 13 and 14 formed in its vertical edge 9, making it possible to communicate through these outside the table 1 and the inside of the cabinet 4 in the housing 5 where s' embed the table, the passages 13 being for example reserved for a suction of ambient air inside the angle iron 7, while the passages 14 allow the simultaneous evacuation of the air thus sucked.
  • the angle iron 7 comprises a bottom plate 15 with a vertical return 16 engaging in the housing 5, in particular in the clearance 17 formed between the corresponding edge of the table 4 and the sides of the box 3, in order to ensure positioning and adequate centering of the table 1 when it is embedded in this housing.
  • the box 3 provided under the glass plate 2 contains, under the plate 2 a fan 18, the detail of which does not directly contribute to the invention, this fan being able to be especially of the centrifugal or tangential type, the only imperative to be satisfied being that it can be housed at the inside of the box without interfering with the installation in it of the heating zones providing the heat necessary for cooking through the plate 2.
  • FIG. 3 there has also been shown diagrammatically, with reference 19, an electronic circuit for controlling the heating foci of the table 1 and for regulating the temperature delivered by these foci according to the various heating stages chosen by the user.
  • the problem to be solved is essentially to ensure satisfactory cooling of the circuit 19 and in particular of the electronic components of this circuit by means of the fan 18, without the need to spare in the cabinet 4, in particular in the bottom or the sides thereof, openings for the suction and discharge of the air driven by the fan 18.
  • the air thus sucked in is discharged at high speed by the turbine inside the box 3 and in particular on the electronic circuit 19 which it cools vigorously before to be forced out of the box at the opposite end of it by the passages 14.
  • the mounting is slightly different, the box 3 having a double bottom delimited by the sheet 21 and a parallel sheet 25 located under the first, delimiting between them a circulation space 26. Ports 27 are provided at the ends of this circulation space so that the air sucked into the clearance 17 through the passages 13 precedes it, is then taken up by the turbine 23 passing through the communication orifice 24 of the sheet 21, then driven back by it both inside the box to cool the electronic circuit here not shown and in space 26 to keep the bottom of the box and the part facing the cabinet 4 at a satisfactory low temperature.
  • the inlet and outlet passages 13 and 14 of the air sucked in and then discharged by the fan 18 may be in the form of holes made in the vertical flange 9 of the angle iron, as illustrated in FIG. 2, or well fit the shape of more or less elongated slits.
  • the inlet orifices are provided on one of the lateral sides or on the front face of the angle iron 7, the outlet orifices being arranged on the opposite side or the rear face; however, any other development could be considered.
  • the invention in no way prejudges the embedding depth of the hob, provided that this allows the housing of the box and, in the latter of the fan, the latter being able, moreover, as already indicated, be of the centrifugal, tangential or helical type.
  • the proposed solution allows a safe installation of the table without specific constraints and without in particular requiring interventions on the piece of furniture which receives it, the dimensions of which can thus be particularly well adjusted.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Secondary Cells (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
  • Electric Stoves And Ranges (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The ventilation system for a ceramic hob fits beneath the glass or ceramic top surface (2), in the enclosure (3) that houses the electrical components for the hob. The cooling is provided by an electrically driven fan (18). The fan is mounted above an opening (23) in the bottom of the enclosure. A metal duct covers to top of the fan and protects it from the heat of the hob. The duct carries air drawn in by the fan over the electronic control module (19). The glass or ceramic top is supported on the rim (9) of the lower enclosure. The rim fits over the edge of the opening provided in the work top (4) to accept the hob. The rim has passages (13) on one side to allow air to be drawn round the underside of the enclosure by the fan, and has passages (14) on the other side to exhaust air delivered by the fan.

Description

La présente invention est relative à un système de ventilation pour table ou appareil de cuisson similaire, comportant notamment une plaque supérieure en verre armé ou en un matériau céramique transparent, des foyers de chauffage répartis sous la plaque et un caisson dans lequel sont montés ces foyers et leurs organes d'alimentation électrique et de contrôle de leur fonctionnement, ce caisson étant fixé sous la plaque et formant avec celle-ci un ensemble monobloc, d'épaisseur relativement réduite et dont le contour généralement carré ou rectangulaire, permet son encastrement dans un logement adéquat ménagé à la partie supérieure d'un meuble ou d'un élément de support analogue, qui s'intègre dans l'aménagement d'une cuisine domestique ou autre.The present invention relates to a ventilation system for a table or similar cooking appliance, comprising in particular an upper plate of reinforced glass or of a transparent ceramic material, heating zones distributed under the plate and a box in which these zones are mounted. and their electrical power supply and operating control members, this box being fixed under the plate and forming with it a one-piece assembly, of relatively reduced thickness and whose generally square or rectangular outline allows it to be embedded in a suitable housing at the top of a piece of furniture or similar support element, which fits into the layout of a domestic or other kitchen.

Dans les solutions actuelles pour ce type de tables de cuisson (voir notamment l'US-A-4 549 052), l'utilisation de circuits électroniques est de plus en plus fréquente, notamment pour assurer le contrôle automatique de la commande des foyers de chauffage et la régulation de la température qu'ils permettent d'atteindre au droit de ces foyers à travers la plaque vitrocéramique. En outre, avec des foyers où ce chauffage est réalisé, non plus au moyen de résistances électriques ou de lampes à halogène, mais dans les réalisations les plus récentes à l'aide d'un enroulement magnétique fonctionnant par induction et se couplant à travers la plaque de verre avec l'ustensile de cuisson métallique reposant sur cette plaque au-dessus du foyer considéré, il est indispensable de réaliser une ventilation énergique de la table et en particulier des circuits électroniques ainsi montés à l'intérieur du caisson placé sous la plaque.In current solutions for this type of hob (see in particular US-A-4,549,052), the use of electronic circuits is more and more frequent, in particular for ensuring the automatic control of the control of the fireplaces. heating and regulating the temperature they allow to reach right of these homes through the ceramic hob. In addition, with fireplaces where this heating is carried out, no longer by means of electric resistances or halogen lamps, but in the most recent achievements using a magnetic winding operating by induction and coupling through the glass plate with the metal cooking utensil resting on this plate above the hearth considered, it is essential to carry out a energetic ventilation of the table and in particular of the electronic circuits thus mounted inside the box placed under the plate.

En particulier, on constate qu'avec des foyers de chauffage de ce dernier type, aussi bien mais plus encore qu'avec ceux plus conventionnels mettant en oeuvre des résistances électriques ou des sources de rayonnement par infrarouge, les pertes d'énergie dans la table et par suite dans le meuble où elle s'encastre, représentent près de 20 % de la puissance fournie, ce qui provoque une élévation notable de la température de certains composants du circuit de commande ou de contrôle, notamment des transistors qui réalisent la commutation de puissance nécessaire pour permettre les diverses allures de chauffe souhaitées par l'utilisateur de la table de cuisson.In particular, it can be seen that with heating fires of the latter type, as well but even more so than with those more conventional using electrical resistances or sources of radiation by infrared, the energy losses in the table and consequently in the piece of furniture where it fits, represent almost 20% of the power supplied, which causes a notable rise in the temperature of certain components of the command or control circuit, in particular transistors which carry out the switching of power required to allow the various heating stages desired by the user of the hob.

Pour assurer ce refroidissement, on utilise de façon classique un ventilateur (voir le FR-A-2 417 725), du type centrifuge ou du genre dit tangentiel, dont les dimensions en épaisseur peuvent être suffisamment réduites pour permettre son logement dans le caisson monté sous la plaque à l'intérieur de la table.To ensure this cooling, a fan is conventionally used (see FR-A-2 417 725), of the centrifugal type or of the so-called tangential type, the thickness dimensions of which can be reduced enough to allow it to be housed in the mounted box. under the plate inside the table.

Mais, pour procurer le refroidissement nécessaire, le ventilateur doit disposer d'une prise d'air et d'une section de refoulement de dimensions suffisantes. Dans les réalisations actuelles, l'aspiration s'effectue directement dans le meuble, ce qui nécessite de pratiquer dans celui-ci des ouvertures convenables avec découpes du plancher, du fond et le cas échéant du tiroir ou de la porte de ce meuble, avoisinant le logement du caisson, le refoulement s'effectuant généralement dans la partie arrière de celui-ci, à l'opposé de sa face frontale visible de l'extérieur.However, to provide the necessary cooling, the fan must have an air intake and a discharge section of sufficient size. In current embodiments, the suction is carried out directly in the cabinet, which requires practicing in the latter suitable openings with cutouts of the floor, the bottom and if necessary the drawer or the door of this furniture, surrounding the housing of the box, the discharge generally takes place in the rear part of the box, opposite its front face visible from the outside.

Il est donc impossible d'encastrer une telle table dans un meuble entièrement fermé. De plus, les découpes nécessaires pour réaliser dans le meuble les orifices d'aspiration et de refoulement sont le plus souvent à pratiquer sur place, lors du montage de la table, ce qui est généralement délicat et exige un temps non négligeable, en fonction du profil du meuble ou de la pièce dans laquelle il s'intègre.It is therefore impossible to fit such a table into a fully closed piece of furniture. In addition, the cuts necessary to make the suction and discharge ports in the cabinet are most often to be made on site, during the assembly of the table, which is generally delicate and requires considerable time, depending on the profile of the piece of furniture or the room in which it fits.

Enfin, ces opérations peuvent conduire à un encastrement final qui n'est plus parfaitement ajusté, d'où des possibilités de surchauffes locales, avec d'éventuelles conséquences sur la durée de vie de la table elle-même.Finally, these operations can lead to a final fitting which is no longer perfectly adjusted, hence the possibility of local overheating, with possible consequences on the life of the table itself.

La présente invention a pour objet un système de ventilation pour table de cuisson qui évite ces inconvénients, cette table avec sa plaque supérieure vitrocéramique et son caisson inférieur formant un ensemble autonome, apte à être refroidi en fonctionnement sans nécessiter aucune prise d'air à réaliser dans le meuble où elle s'encastre.The present invention relates to a ventilation system for a hob which avoids these drawbacks, this table with its ceramic glass upper plate and its lower casing forming an autonomous assembly, capable of being cooled in operation without requiring any air intake to be produced. in the cabinet where it fits.

A cet effet, le système considéré, pour une table de cuisson comportant une plaque de verre ou analogue à sa partie supérieure, un caisson plat inférieur, solidaire de la plaque et disposé sous celle-ci, ce caisson logeant un et de préférence plusieurs foyers de chauffage montés à l'intérieur du caisson et des organes électriques et électroniques de commande et de régulation de ces foyers, ainsi qu'un ventilateur de refroidissement, se caractérise en ce que la plaque de verre est supportée par une cornière périphérique du caisson, cette cornière reposant par l'intermédiaire d'une portée d'appui horizontale sur un meuble recevant la table dans un espace d'encastrement de dimensions correspondantes et présentant un rebord sensiblement vertical muni d'une extension latérale sur laquelle s'applique la plaque à l'intérieur de la cornière, ce rebord étant muni de passages respectivement pour l'entrée de l'air ambiant aspiré par le ventilateur et pour la sortie de cet air après refoulement à l'intérieur du caisson, ces passages étant de préférence disposés dans des côtés opposés de la cornière.For this purpose, the system considered, for a hob having a glass plate or the like at its upper part, a lower flat box, integral with the plate and placed under it, this box housing one and preferably several hearths of heating mounted inside the box and of the electrical and electronic organs for controlling and regulating these fireplaces, as well as a cooling fan, is characterized in that the glass plate is supported by a peripheral angle of the box, this angle resting by means of a horizontal bearing surface on a piece of furniture receiving the table in a recess space of corresponding dimensions and having a substantially vertical rim provided with a lateral extension to which the plate is applied inside the angle iron, this rim being provided with passages respectively for the entry of ambient air sucked in by the fan and for the exit of this air after discharge inside the box, these passages being preferably arranged in opposite sides of the angle iron.

Avantageusement, les passages d'entrée de l'air ménagés dans le rebord de la cornière sont prévus vers l'avant du caisson et les passages de sortie vers l'arrière de celui-ci. Toutefois et en variante, ces passages peuvent être prévus sur les côtés latéraux de la cornière.Advantageously, the air inlet passages formed in the edge of the angle iron are provided towards the front of the box and the outlet passages towards the rear of the latter. However and as a variant, these passages can be provided on the lateral sides of the angle iron.

Selon un mode de réalisation préféré, la cornière périphérique entourant la plaque de verre est creuse et comporte un retour vers l'extérieur légèrement arrondi dont l'extrémité est en contact avec la portée d'appui horizontale de la table.According to a preferred embodiment, the peripheral angle surrounding the glass plate is hollow and has a slightly rounded outward return whose end is in contact with the horizontal bearing surface of the table.

Selon le cas, le caisson comporte un fond inférieur formé d'une tôle plane ou présente un double fond délimité par deux tôles parallèles ménageant entre elles un espace de circulation de l'air refoulé par le ventilateur.Depending on the case, the box has a bottom bottom formed of a flat sheet or has a double bottom delimited by two parallel sheets providing between them a space for circulation of the air discharged by the fan.

Dans un mode de réalisation également préféré, le ventilateur est logé à l'intérieur du caisson à proximité du côté de celui-ci comportant les orifices d'entrée d'air.In an also preferred embodiment, the fan is housed inside the box near the side of the box having the air inlet orifices.

D'autres caractéristiques d'un système de ventilation pour table de cuisson, établi conformément à l'invention, apparaîtront encore à travers la description qui suit d'un exemple de réalisation, donné à titre indicatif et non limitatif, en référence aux dessins annexés sur lesquels :

  • La Figure 1 est une vue en coupe transversale partielle d'une table de cuisson équipée d'un système de refroidissement selon l'invention.
  • La Figure 2 est une vue en perspective partielle d'une variante de réalisation de la table de cuisson selon la Figure 1.
  • La Figure 3 est une vue en coupe longitudinale de la table représentée sur la Figure 1, illustrant plus particulièrement le montage du ventilateur à l'intérieur du caisson et la manière dont celui-ci aspire l'air extérieur pour le refouler vers les orifices de sortie de la cornière.
  • La Figure 4 est une vue analogue à la Figure 3 mais relative à une variante de réalisation.
Other characteristics of a ventilation system for a cooktop, established in accordance with the invention, will become more apparent from the following description of an exemplary embodiment, given by way of non-limiting example, with reference to the accompanying drawings. on which ones :
  • Figure 1 is a partial cross-sectional view of a cooktop equipped with a cooling system according to the invention.
  • Figure 2 is a partial perspective view of an alternative embodiment of the hob according to Figure 1.
  • Figure 3 is a longitudinal sectional view of the table shown in Figure 1, illustrating more particularly the mounting of the fan inside the box and the way in which it sucks in the outside air to discharge it towards the orifices of exit from the angle iron.
  • Figure 4 is a view similar to Figure 3 but relating to an alternative embodiment.

Sur la Figure 1, la référence 1 désigne une table de cuisson constituée d'une plaque supérieure 2, en verre armé ou en un matériau vitrocéramique et d'un caisson inférieur 3, disposé sous la plaque 2 et contenant notamment des foyers de chauffage (non représentés), répartis convenablement sous la plaque, ces foyers pouvant comporter selon le cas des résistances électriques, des lampes halogènes délivrant un rayonnement infrarouge ou encore des enroulements magnétiques pour réaliser un chauffage à induction par couplage avec des ustensiles métalliques placés sur le dessus de la plaque 2.In FIG. 1, the reference 1 designates a hob consisting of an upper plate 2, made of reinforced glass or of a vitroceramic material and of a lower box 3, placed under the plate 2 and containing in particular heating zones ( not shown), suitably distributed under the plate, these fireplaces may include, as the case may be, electric resistances, halogen lamps delivering infrared radiation or even magnetic coils to produce induction heating by coupling with metal utensils placed on top of plate 2.

La table 1 est prévue pour être encastrée à l'intérieur d'un meuble de support 4 présentant un logement 5 de dimensions appropriées dans lequel vient s'encastrer la table 1 et en particulier le caisson 3 disposé sous la plaque de verre 2.The table 1 is designed to be embedded inside a support unit 4 having a housing 5 of suitable dimensions in which the table 1 and in particular the box 3 is placed, placed under the glass plate 2.

Conformément à l'invention, la table 1 repose sur une portée d'appui horizontale 6 du meuble 4 par l'intermédiaire d'une cornière métallique 7 comprenant une extension latérale 8 sur laquelle s'applique le bord périphérique externe de la plaque 2, cette extension comprenant un rebord sensiblement vertical 9 entourant à sa périphérie la plaque de verre.According to the invention, the table 1 rests on a horizontal bearing surface 6 of the cabinet 4 by means of a metal angle iron 7 comprising a lateral extension 8 to which the external peripheral edge of the plate 2 is applied, this extension comprising a substantially vertical rim 9 surrounding at its periphery the glass plate.

Selon le cas, le rebord 9 s'étendant à partir de l'extension 8 supportant la plaque 2 peut comporter une extrémité 10 fermée sur elle-même, comme représenté sur la Figure 1, ou se prolonger par un retour 11 s'étendant vers l'extérieur comme illustré sur la Figure 2, ce retour présentant dans ce cas un profil arrondi terminé par une extrémité rabattue 12 venant au contact ou au voisinage immédiat de la portée d'appui 6.Depending on the case, the flange 9 extending from the extension 8 supporting the plate 2 may have an end 10 closed on itself, as shown in Figure 1, or extend by a return 11 extending towards the exterior as illustrated in FIG. 2, this return having in this case a rounded profile terminated by a folded end 12 coming into contact or in the immediate vicinity of the bearing surface 6.

La cornière 7 comprend une pluralité de passages tels que 13 et 14 ménagés dans son rebord vertical 9, permettant de faire communiquer à travers ceux-ci l'extérieur de la table 1 et l'intérieur du meuble 4 dans le logement 5 où s'encastre la table, les passages 13 étant par exemple réservés à une aspiration de l'air ambiant à l'intérieur de la cornière 7, tandis que les passages 14 permettent l'évacuation simultanée de l'air ainsi aspiré.The angle iron 7 comprises a plurality of passages such as 13 and 14 formed in its vertical edge 9, making it possible to communicate through these outside the table 1 and the inside of the cabinet 4 in the housing 5 where s' embed the table, the passages 13 being for example reserved for a suction of ambient air inside the angle iron 7, while the passages 14 allow the simultaneous evacuation of the air thus sucked.

Avantageusement, la cornière 7 comprend une plaque inférieure 15 avec un retour vertical 16 s'engageant dans le logement 5, notamment dans le jeu 17 ménagé entre le bord correspondant de la table 4 et les côtés du caisson 3, afin d'assurer un positionnement et un centrage adéquat de la table 1 lors de son encastrement dans ce logement.Advantageously, the angle iron 7 comprises a bottom plate 15 with a vertical return 16 engaging in the housing 5, in particular in the clearance 17 formed between the corresponding edge of the table 4 and the sides of the box 3, in order to ensure positioning and adequate centering of the table 1 when it is embedded in this housing.

Comme on le voit plus particulièrement sur la Figure 3, le caisson 3 prévu sous la plaque de verre 2 contient, sous la plaque 2 un ventilateur 18 dont le détail de la réalisation n'apporte pas directement à l'invention, ce ventilateur pouvant être notamment du type centrifuge ou tangentiel, le seul impératif à satisfaire étant qu'il puisse se loger à l'intérieur du caisson sans gêner la mise en place dans celui-ci des foyers de chauffage fournissant la chaleur nécessaire à la cuisson à travers la plaque 2.As can be seen more particularly in FIG. 3, the box 3 provided under the glass plate 2 contains, under the plate 2 a fan 18, the detail of which does not directly contribute to the invention, this fan being able to be especially of the centrifugal or tangential type, the only imperative to be satisfied being that it can be housed at the inside of the box without interfering with the installation in it of the heating zones providing the heat necessary for cooking through the plate 2.

Sur la Figure 3, on a également schématisé, sous la référence 19 un circuit électronique de commande des foyers de chauffage de la table 1 et de régulation de la température délivrée par ces foyers selon les diverses allures de chauffe choisies par l'utilisateur.In FIG. 3, there has also been shown diagrammatically, with reference 19, an electronic circuit for controlling the heating foci of the table 1 and for regulating the temperature delivered by these foci according to the various heating stages chosen by the user.

Comme on l'a déjà précisé, le problème à résoudre est essentiellement d'assurer un refroidissement satisfaisant du circuit 19 et en particulier des composants électroniques de ce circuit au moyen du ventilateur 18, sans nécessiter de ménager dans le meuble 4, en particulier dans le fond ou les côtés de celui-ci, des ouvertures pour l'aspiration et le refoulement de l'air entraîné par le ventilateur 18.As has already been specified, the problem to be solved is essentially to ensure satisfactory cooling of the circuit 19 and in particular of the electronic components of this circuit by means of the fan 18, without the need to spare in the cabinet 4, in particular in the bottom or the sides thereof, openings for the suction and discharge of the air driven by the fan 18.

Les dispositions conformes à l'invention permettent de réaliser cet objectif grâce à la présence de la cornière 7 qui supporte la table 1 par l'intermédiaire de la plaque 2, et en particulier aux passages 13 et 14 d'entrée et de sortie de l'air prévus dans le rebord vertical 9 de cette cornière.The arrangements according to the invention make it possible to achieve this objective thanks to the presence of the angle iron 7 which supports the table 1 by means of the plate 2, and in particular at the passages 13 and 14 of inlet and outlet of the 'air provided in the vertical flange 9 of this angle.

Dans l'exemple illustré sur la Figure 3, l'air qui pénètre dans le jeu 17, entre le côté du logement 5 et le bord du caisson 3 en provenant des passages 13, circule d'abord dans l'espace 20 ménagé entre le fond 21 en tôle notamment de ce caisson et le plancher 22 du logement 5 avant d'être aspiré par la turbine 23 du ventilateur 18 au travers d'un orifice 24 prévu dans le fond 21 au droit de cette turbine.In the example illustrated in FIG. 3, the air which enters the clearance 17, between the side of the housing 5 and the edge of the box 3 coming from the passages 13, first circulates in the space 20 formed between the bottom 21 in sheet metal in particular of this box and the floor 22 of the housing 5 before being sucked by the turbine 23 of the fan 18 through an orifice 24 provided in the bottom 21 to the right of this turbine.

L'air ainsi aspiré est refoulé à grand débit par la turbine à l'intérieur même du caisson 3 et en particulier sur le circuit électronique 19 qu'il refroidit énergiquement avant d'être refoulé hors du caisson à l'extrémité opposée de celui-ci par les passages 14.The air thus sucked in is discharged at high speed by the turbine inside the box 3 and in particular on the electronic circuit 19 which it cools vigorously before to be forced out of the box at the opposite end of it by the passages 14.

Dans la variante illustrée sur la Figure 4, le montage est légèrement différent, le caisson 3 comportant un double fond délimité par la tôle 21 et une tôle parallèle 25 située sous la première, délimitant entre elles un espace de circulation 26. Des orifices 27 sont prévus aux extrémités de cet espace de circulation de telle sorte que l'air aspiré dans le jeu 17 à travers les passages 13 y prénètre, soit ensuite repris par la turbine 23 en passant dans l'orifice de communication 24 de la tôle 21, puis refoulé par celle-ci à la fois à l'intérieur du caisson pour refroidir le circuit électronique ici non représenté et dans l'espace 26 pour maintenir le fond du caisson et la partie en regard du meuble 4 à une température basse satisfaisante.In the variant illustrated in FIG. 4, the mounting is slightly different, the box 3 having a double bottom delimited by the sheet 21 and a parallel sheet 25 located under the first, delimiting between them a circulation space 26. Ports 27 are provided at the ends of this circulation space so that the air sucked into the clearance 17 through the passages 13 precedes it, is then taken up by the turbine 23 passing through the communication orifice 24 of the sheet 21, then driven back by it both inside the box to cool the electronic circuit here not shown and in space 26 to keep the bottom of the box and the part facing the cabinet 4 at a satisfactory low temperature.

Les dispositions conformes à l'invention peuvent bien entendu subir de nombreuses variantes sans sortir du cadre de cette dernière. Notamment, les passages d'entrée et de sortie 13 et 14 de l'air aspiré puis refoulé par le ventilateur 18 peuvent se présenter sous la forme de trous ménagés dans le rebord vertical 9 de la cornière, comme illustré sur la Figure 2, ou bien épouser la forme de fentes plus ou moins allongées.The arrangements according to the invention can of course undergo numerous variants without departing from the scope of the latter. In particular, the inlet and outlet passages 13 and 14 of the air sucked in and then discharged by the fan 18 may be in the form of holes made in the vertical flange 9 of the angle iron, as illustrated in FIG. 2, or well fit the shape of more or less elongated slits.

De préférence, les orifices d'entrée sont ménagés sur un des côtés latéraux ou sur la face avant de la cornière 7, les orifices de sortie étant disposés sur le côté opposé ou la face arrière ; toutefois, tout autre aménagement pourrait être envisagé.Preferably, the inlet orifices are provided on one of the lateral sides or on the front face of the angle iron 7, the outlet orifices being arranged on the opposite side or the rear face; however, any other development could be considered.

L'invention ne préjuge nullement de la profondeur d'encastrement de la table de cuisson, pour autant que celle-ci permette le logement du caisson et, dans celui-ci du ventilateur, ce dernier pouvant par ailleurs, comme déjà indiqué, être du type centrifuge, tangentiel ou hélicoïde. Dans tous les cas, la solution proposée permet un encastrement sûr de la table sans contraintes spécifiques et sans notamment nécessiter d'interventions sur le meuble qui la reçoit, dont les cotes peuvent être ainsi particulièrement bien ajustées.The invention in no way prejudges the embedding depth of the hob, provided that this allows the housing of the box and, in the latter of the fan, the latter being able, moreover, as already indicated, be of the centrifugal, tangential or helical type. In all cases, the proposed solution allows a safe installation of the table without specific constraints and without in particular requiring interventions on the piece of furniture which receives it, the dimensions of which can thus be particularly well adjusted.

Dans ces conditions et comme il va de soi, l'invention ne se limite pas aux exemples plus spécialement décrits et représentés sur les dessins annexés ; elle en embrasse au contraire toutes les variantes.Under these conditions and as it goes without saying, the invention is not limited to the examples more especially described and represented in the appended drawings; on the contrary, it embraces all its variants.

Claims (7)

1 - Système de ventilation pour table de cuisson ou similaire (1), comportant une plaque de verre ou analogue (2) à sa partie supérieure, un caisson plat (3) inférieur, solidaire de la plaque et disposé sous celle-ci, ce caisson logeant un et de préférence plusieurs foyers de chauffage montés à l'intérieur du caisson et des organes électriques et électroniques (19) de commande et de régulation de ces foyers, ainsi qu'un ventilateur de refroidissement (18), caractérisé en ce que la plaque de verre est supportée par une cornière périphérique (7) du caisson, cette cornière reposant par l'intermédiaire d'une portée d'appui horizontale (6) sur un meuble (4) recevant la table dans un espace d'encastrement (5) de dimensions correspondantes et présentant un rebord sensiblement vertical (9) muni d'une extension latérale (8) sur laquelle s'applique la plaque à l'intérieur de la cornière, ce rebord étant muni de passages (13, 14) respectivement pour l'entrée de l'air ambiant aspiré par le ventilateur et pour la sortie de cet air après refoulement à l'intérieur du caisson, ces passages étant de préférence disposés dans des côtés opposés de la cornière. 1 - Ventilation system for a cooktop or the like (1), comprising a glass plate or the like (2) at its upper part, a lower flat box (3), integral with the plate and disposed under it, this box housing one and preferably several heating zones mounted inside the box and the electrical and electronic organs (19) for controlling and regulating these zones, as well as a cooling fan (18), characterized in that the glass plate is supported by a peripheral angle (7) of the box, this angle resting by means of a horizontal bearing surface (6) on a piece of furniture (4) receiving the table in a recessing space ( 5) of corresponding dimensions and having a substantially vertical rim (9) provided with a lateral extension (8) on which the plate is applied inside the angle iron, this rim being provided with passages (13, 14) respectively for air intake ambient drawn in by the fan and for the exit of this air after discharge inside the box, these passages being preferably arranged in opposite sides of the angle iron. 2 - Système de ventilation selon la revendication 1, caractérisé en ce que les passages d'entrée (13) de l'air ménagés dans le rebord (9) de la cornière (7) sont prévus vers l'avant du caisson (3) et les passages de sortie (14) vers l'arrière de celui-ci. 2 - Ventilation system according to claim 1, characterized in that the air inlet passages (13) formed in the flange (9) of the angle iron (7) are provided towards the front of the box (3) and the outlet passages (14) towards the rear thereof. 3 - Système de ventilation selon la revendication 1, caractérisé en ce que les passages d'entrée et de sortie (13, 14) de l'air sont prévus sur les côtés latéraux de la cornière. 3 - Ventilation system according to claim 1, characterized in that the air inlet and outlet passages (13, 14) are provided on the lateral sides of the angle iron. 4 - Système de ventilation selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la cornière périphérique (7) entourant la plaque de verre (2) est creuse et comporte un retour (11) vers l'extérieur légèrement arrondi dont l'extrémité (12) est en contact avec la portée d'appui horizontale (6) de la table (4). 4 - ventilation system according to any one of claims 1 to 3, characterized in that the angle peripheral (7) surrounding the glass plate (2) is hollow and has a slightly rounded outward return (11), the end (12) of which is in contact with the horizontal bearing surface (6) of the table (4). 5 - Système de ventilation selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le caisson (4) comporte un fond inférieur formé d'une tôle plane (21). 5 - Ventilation system according to any one of claims 1 to 4, characterized in that the box (4) has a lower bottom formed of a flat sheet (21). 6 - Système de ventilation selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le caisson (4) comporte un double fond (21, 25) délimité par deux tôles parallèles ménageant entre elles un espace de circulation (26) de l'air refoulé par le ventilateur (18). 6 - Ventilation system according to any one of claims 1 to 4, characterized in that the box (4) has a double bottom (21, 25) delimited by two parallel sheets providing between them a circulation space (26) of the air discharged by the fan (18). 7 - Système de ventilation selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le ventilateur (18) est logé à l'intérieur du caisson (4) à proximité du côté de celui-ci comportant les orifices d'entrée d'air (13). 7 - ventilation system according to any one of claims 1 to 6, characterized in that the fan (18) is housed inside the box (4) near the side thereof comprising the inlet openings air (13).
EP95400040A 1994-01-12 1995-01-09 Ventilating system for cooking top or the like Expired - Lifetime EP0663567B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9400283 1994-01-12
FR9400283A FR2714961B1 (en) 1994-01-12 1994-01-12 Ventilation system for hob or the like.

Publications (2)

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EP0663567A1 true EP0663567A1 (en) 1995-07-19
EP0663567B1 EP0663567B1 (en) 1998-09-30

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EP (1) EP0663567B1 (en)
AT (1) ATE171773T1 (en)
DE (1) DE69505018T2 (en)
FR (1) FR2714961B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0951203A2 (en) * 1998-04-17 1999-10-20 BSH Bosch und Siemens Hausgeräte GmbH Assembly with a baking oven and a cooking hob
KR100691115B1 (en) 2005-06-30 2007-03-12 린나이코리아 주식회사 Glass top plate for drop-in type cooking stove
DE19964489B4 (en) * 1999-07-29 2007-04-12 BSH Bosch und Siemens Hausgeräte GmbH Induction hob with cooling fan
WO2010036594A2 (en) * 2008-09-25 2010-04-01 Electrolux Home Products, Inc. Cooktop with forced convection cooling
EP2097679A4 (en) * 2006-12-29 2015-07-29 Lg Electronics Inc Built-in cooking appliance
EP2696144A3 (en) * 2012-07-11 2017-12-13 Whirlpool Corporation Ventilation system for induction cooktop

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155789A1 (en) * 2001-11-14 2003-05-22 Bsh Bosch Siemens Hausgeraete Arrangement with a hob and an intermediate floor and intermediate floor
DE10163839B4 (en) * 2001-12-22 2005-01-05 AEG Hausgeräte GmbH Cooker, in particular induction cooker
ES2398172B1 (en) * 2010-08-31 2014-01-21 Bsh Electrodomésticos España, S.A. DOMESTIC DEVICE DEVICE.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417725A1 (en) * 1978-02-17 1979-09-14 Neff Werke COOKER WITH INDUCTION HEATED COOKTOP
US4549052A (en) * 1984-01-12 1985-10-22 The Maytag Company Cooling system for an induction cooking cartridge
EP0376791A1 (en) * 1988-12-27 1990-07-04 Compagnie Europeenne Pour L'equipement Menager "Cepem" Support for the control means of a household appliance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417725A1 (en) * 1978-02-17 1979-09-14 Neff Werke COOKER WITH INDUCTION HEATED COOKTOP
US4549052A (en) * 1984-01-12 1985-10-22 The Maytag Company Cooling system for an induction cooking cartridge
EP0376791A1 (en) * 1988-12-27 1990-07-04 Compagnie Europeenne Pour L'equipement Menager "Cepem" Support for the control means of a household appliance

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0951203A2 (en) * 1998-04-17 1999-10-20 BSH Bosch und Siemens Hausgeräte GmbH Assembly with a baking oven and a cooking hob
EP0951203A3 (en) * 1998-04-17 2000-11-29 BSH Bosch und Siemens Hausgeräte GmbH Assembly with a baking oven and a cooking hob
DE19964489B4 (en) * 1999-07-29 2007-04-12 BSH Bosch und Siemens Hausgeräte GmbH Induction hob with cooling fan
KR100691115B1 (en) 2005-06-30 2007-03-12 린나이코리아 주식회사 Glass top plate for drop-in type cooking stove
EP2097679A4 (en) * 2006-12-29 2015-07-29 Lg Electronics Inc Built-in cooking appliance
CN102239365A (en) * 2008-09-25 2011-11-09 伊莱克斯家用产品公司 Cooktop with forced convection cooling
WO2010036594A3 (en) * 2008-09-25 2010-07-15 Electrolux Home Products, Inc. Cooktop with forced convection cooling
US8269148B2 (en) 2008-09-25 2012-09-18 Electrolux Home Products, Inc. Cooktop with forced convection cooling
AU2009296801B2 (en) * 2008-09-25 2014-07-31 Electrolux Home Products, Inc. Cooktop with forced convection cooling
CN102239365B (en) * 2008-09-25 2014-09-17 伊莱克斯家用产品公司 Cooktop with forced convection cooling
WO2010036594A2 (en) * 2008-09-25 2010-04-01 Electrolux Home Products, Inc. Cooktop with forced convection cooling
EP2696144A3 (en) * 2012-07-11 2017-12-13 Whirlpool Corporation Ventilation system for induction cooktop
US10865995B2 (en) 2012-07-11 2020-12-15 Whirlpool Corporation Ventilation system for induction cooktop

Also Published As

Publication number Publication date
ATE171773T1 (en) 1998-10-15
DE69505018D1 (en) 1998-11-05
EP0663567B1 (en) 1998-09-30
FR2714961A1 (en) 1995-07-13
DE69505018T2 (en) 1999-03-11
FR2714961B1 (en) 1996-04-12

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