EP1180648B1 - Motorized extracting hood for kitchen - Google Patents

Motorized extracting hood for kitchen Download PDF

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Publication number
EP1180648B1
EP1180648B1 EP01420179A EP01420179A EP1180648B1 EP 1180648 B1 EP1180648 B1 EP 1180648B1 EP 01420179 A EP01420179 A EP 01420179A EP 01420179 A EP01420179 A EP 01420179A EP 1180648 B1 EP1180648 B1 EP 1180648B1
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EP
European Patent Office
Prior art keywords
compartment
hood
orifice
recycling
extraction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP01420179A
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German (de)
French (fr)
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EP1180648A1 (en
Inventor
Xavier Pelleter
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Aldes Aeraulique SA
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Aldes Aeraulique SA
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Publication of EP1180648A1 publication Critical patent/EP1180648A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • 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
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/001—Ventilation with exhausting air ducts

Definitions

  • the present invention relates to a kitchen hood motorized.
  • Kitchen hoods arranged above a table cooking are intended to capture the air in the environment of the appliance cooking to eliminate odors. These hoods are generally considered to be installed household appliances independently of the ventilation systems of the accommodation, so that they can have a negative influence on indoor air quality and disturb the operation of the ventilation device.
  • hoods There is a first type of hoods constituted by hoods with extraction which must capture and extract a large air flow on the plan cooking to be effective. The extracted air is discharged outside the building.
  • Two main problems result from this extraction: significant heat losses and a strong depression in the housing, which disrupts the functioning of ventilation, when the housing is equipped with a controlled mechanical ventilation device.
  • US-A-383 7269 shows a hood according to the preamble of claim 1.
  • the object of the invention is to provide a kitchen hood which, when used in kitchen operation avoids extracting a flow significant air outside the accommodation, and which does not release the odors which have could be picked up.
  • the hood it relates to, of the type comprising a box associated with means capable of ensuring at least two flows suction, and the open underside of which is fitted with a greases, characterized in that the upper part of the box comprises two compartments communicating with the main part of the hood in pairs orifices, one of the compartments being connected to an opening leading to the outside of the building directly or through a ventilation network and the other compartment ensuring the recycling of air inside the room, a odor filter being provided, which is movable between a position in which it is opposite the orifice of the extraction compartment, when the suction means ensure a low flow rate, and a position in which it is opposite the orifice of the recycling compartment when the suction means provide a large flow.
  • the filter When using the hob, the filter is in look of the orifice of the recycling compartment, and the valve associated with this orifice is in the open position.
  • the suction means are great debit. Part of the air is then extracted from the housing via of the extraction compartment with the opening open, and the other part of the air passes over the odor filter, into the recycling compartment and is reinserted on the hob.
  • This operating regime makes it possible to limit the depression created in the housing while aspirating a large flow in terms of cooking, since part of the flow is sent outside the building, and the other part is recycled. This operating regime allows also limit heat loss due to recycling of part of the air. Finally, this recycling of part of the air in terms of cooking creates an air curtain at this cooking level increasing the efficiency of capturing odors and vapors.
  • the odor filter When the hob is not in use, the odor filter is located opposite the orifice of the extraction compartment and the valve associated with the orifice of the recycling compartment closes this orifice while that the suction means ensure a low extraction rate. There is therefore no recycled flow, and the entire passage of the extracted air, no loaded with kitchen odors, allows the odor filter to desorb gradually. Thus, the phenomena of release of odors are limited when the hood returns to high flow with recycling. For better desorption of odors, the extracted air can be heated temporarily before to pass over the filter.
  • the hood ensures regulatory permanent extraction rate in the kitchen.
  • the suction means are constituted by a motor-fan housed in the hood casing, upstream of the two extraction compartments and recycling, a removable valve being provided, which closes the orifice of the recycling compartment when the fan ensures a low flow.
  • valve associated with the orifice of the compartment is pivotally mounted between a position in which it closes this orifice and a position in which it opens it.
  • the suction means consist of two motor-fans housed respectively in the suction compartment and in the compartment recycling, the one housed in the suction compartment ensuring ventilation of the house and the other only working during the period using a hob located under the hood.
  • the suction means are constituted by a ventilation group, by example of centralized ventilation, permanently drawing air into the extraction compartment and by a motor-fan mounted in the recycling compartment and operating only during use a hob placed under the hood.
  • the extraction of extracted air can be ensured by a fan collective placed, for example, at the top of a ventilation column mechanically controlled.
  • the fan placed in the hood then only has function of ensuring the recycling of air through the odor filter.
  • the odor filter is mounted sliding between the two positions in which it is respectively opposite the opening of the extraction compartment and the opening of the recycling.
  • the odor filter is fitted pivoting between the two positions in which it is respectively in view of the hole in the extraction compartment and the hole in the recycling compartment.
  • the respective movements of the odor filter and the valve associated with the orifice of the recycling compartment are coupled.
  • the movement of the odor filter is associated with the change of operating mode of the fan motor.
  • the only movement of the odor filter moved for example by a lever allows to simultaneously actuate the valve associated with the orifice of the recycling compartment, and to modify the regime of the fan motor.
  • Figure 1 shows a hob 2 against a wall 3 in the upper part of which is formed an opening 4 leading to outside the building.
  • a hood placed above the hob includes a lower main part 5 containing a motor-fan 6, and having an open underside equipped with a grease filter 7.
  • the upper part of the hood has two compartments communicating with the main part through two openings, a compartment 8 connected by a tube 9 to the opening opening to the outside of the building and a compartment 10 or recycling compartment ensuring the air recirculation through a channel 12 extending at least on the front part of the hood and possibly on the side parts thereof.
  • the compartments 8 and 10 communicate with the main part, respectively by openings 13 and 14.
  • a slide 15 is provided at the level of the openings 13 and 14 in which a filter is slidably mounted with odors 16 of surface corresponding substantially to the surface of each opening 13, 14.
  • a port 17 is also associated with a valve 17 pivoting about an axis 18 between an opening position of the orifice 14 shown in Figure 1, a closed position thereof shown in Figure 2.
  • the fan motor 6 is capable of two flows distinct, namely a first basic flow corresponding to an extraction permanent housing regulation and higher throughput corresponding to a flow implemented when using the table cooking 2.
  • Heating resistors 19 are arranged below orifice 13 of compartment 8.
  • This hood operates as follows: When the table cooking is used, as is the case represented in figure 1, the motor-fan offers the maximum flow, the odor filter 16 is arranged in view of the opening 14 of the recycling compartment 10 and the valve 17 is open. The flow is therefore divided between an extraction flow to the exterior by the opening 4 and a flow recycled by the compartment 10, as shown by the arrows in figure 1. The extraction rate is important, which ensures good capture of vapors and odors on the hob and the reduced extract flow does not disturb the aunterlics housing. When the hob is not in use, the odor filter 16 is moved to the position shown in Figure 2 in which it located opposite the orifice 13 opening into the compartment 8.
  • the valve 17 is in the closed position and the fan motor operates at small flow while ensuring the basic flow of regulatory extraction of the cooked.
  • the heating resistors 19 can be supplied.
  • the total air flow which corresponds to the base extraction flow rate on the odor filter before being sent outside. It is thus possible, while ensuring a basic throughput of regulatory extraction of housing, to carry out the desorption of odors at the level of the filter 16, which is favored by at least momentary heating of the air through the resistances 19. It should be noted that this desorption of the odor filter avoids, during the operation of the hood with high flow in the Figure 1 configuration to release odors inside the kitchen.
  • FIGS. 3 and 4 show another embodiment of this hood, in which the same elements are designated by the same references than before.
  • the motor fan 23 will therefore ensure the basic ventilation rate of the room in question.
  • the hood contains a motor-fan 24 arranged in the extraction compartment.
  • This embodiment is advantageous in the context of a collective housing, because it makes it possible to comply with the ventilation standards of the building, without imbalance of the installation during use in flow maximum suction in the kitchen.
  • the invention provides a great improvement to the existing technique by providing a hood ensuring a basic permanent extraction base flow, a flow important extraction for a good capture on the hob, in if it is used, a reduced extract flow does not disturb the ventilation of the accommodation, a recycled flow with odor capture, with desorption and regeneration of the odor filter when using the hood with a permanent extraction base rate, which limits the risks of release of odors in the accommodation.

Abstract

The hood for a kitchen cooker has two compartments (8,10) connected to the main part of the hood by two openings (13,14). One compartment is connected to an opening (4) at the exterior of the building and the other (10) allows recycling of interior air. A filter (16) is movable between a position in which it is opposite the opening of the extraction compartment at low blower (6) flow rates and a position opposite the recycling compartment opening.

Description

La présente invention a pour objet une hotte de cuisine motorisée.The present invention relates to a kitchen hood motorized.

Les hottes de cuisine, disposées au-dessus d'une table de cuisson sont destinées à capter l'air dans l'environnement de l'appareil de cuisson pour éliminer des odeurs. Ces hottes sont généralement considérées comme des éléments d'électroménager installés indépendamment des systèmes de ventilation des logements, de telle sorte qu'elles peuvent avoir une influence néfaste sur la qualité de l'air intérieur et perturber le fonctionnement du dispositif de ventilation.Kitchen hoods, arranged above a table cooking are intended to capture the air in the environment of the appliance cooking to eliminate odors. These hoods are generally considered to be installed household appliances independently of the ventilation systems of the accommodation, so that they can have a negative influence on indoor air quality and disturb the operation of the ventilation device.

Il existe un premier type de hottes constituées par des hottes à extraction qui doivent capter et extraire un débit d'air important sur le plan de la cuisson pour être efficaces. L'air extrait est rejeté à l'extérieur du bâtiment. Il résulte de cette extraction deux problèmes principaux : des déperditions thermiques importantes et une forte dépression dans le logement, qui perturbe le fonctionnement de la ventilation, lorsque le logement est équipé d'un dispositif de ventilation mécanique contrôlée.There is a first type of hoods constituted by hoods with extraction which must capture and extract a large air flow on the plan cooking to be effective. The extracted air is discharged outside the building. Two main problems result from this extraction: significant heat losses and a strong depression in the housing, which disrupts the functioning of ventilation, when the housing is equipped with a controlled mechanical ventilation device.

Il existe également des hottes à recyclage qui sont utilisées lorsqu'une extraction d'air hors du logement n'est pas possible. Ces hottes à recyclage utilisent des filtres chimiques dont le but est de capter les odeurs. Ces hottes, d'une part n'extraient pas les vapeurs d'eau créées sur les plans de cuisson, et d'autre part relarguent les odeurs captées sur le filtre chimique. L'efficacité de telles hottes vis-à-vis de la qualité de l'air n'est donc pas satisfaisante.There are also recycling hoods that are used when it is not possible to extract air from the accommodation. These hoods for recycling use chemical filters whose purpose is to capture odors. These hoods, on the one hand do not extract the water vapors created on the hobs, and on the other hand release the odors captured on the chemical filter. The efficiency of such hoods with regard to air quality is therefore not satisfactory.

US-A-383 7269 montre une hotte selon le preambule de la revendication 1.US-A-383 7269 shows a hood according to the preamble of claim 1.

Le but de l'invention est de fournir une hotte de cuisine qui, lorsqu'elle est utilisée en fonctionnement cuisine évite d'extraire un débit d'air important hors du logement, et qui ne relargue pas les odeurs qui ont pu être captées.The object of the invention is to provide a kitchen hood which, when used in kitchen operation avoids extracting a flow significant air outside the accommodation, and which does not release the odors which have could be picked up.

A cet effet, la hotte qu'elle concerne, du type comportant un caisson associé à des moyens susceptibles d'assurer au moins deux débits d'aspiration, et dont la face inférieure ouverte est équipée d'un filtre à graisses, caractérisée en ce que la partie haute du caisson comprend deux compartiments communiquant avec la partie principale de la hotte par deux orifices, l'un des compartiments étant relié à une ouverture débouchant à l'extérieur du bâtiment directement ou à travers un réseau de ventilation et l'autre compartiment assurant le recyclage d'air à l'intérieur de la pièce, un filtre à odeurs étant prévu, qui est déplaçable entre une position dans laquelle il est en regard de l'orifice du compartiment d'extraction, lorsque les moyens d'aspiration assurent un faible débit, et une position dans laquelle il est en regard de l'orifice du compartiment de recyclage lorsque les moyens d'aspiration assurent un grand débit.To this end, the hood it relates to, of the type comprising a box associated with means capable of ensuring at least two flows suction, and the open underside of which is fitted with a greases, characterized in that the upper part of the box comprises two compartments communicating with the main part of the hood in pairs orifices, one of the compartments being connected to an opening leading to the outside of the building directly or through a ventilation network and the other compartment ensuring the recycling of air inside the room, a odor filter being provided, which is movable between a position in which it is opposite the orifice of the extraction compartment, when the suction means ensure a low flow rate, and a position in which it is opposite the orifice of the recycling compartment when the suction means provide a large flow.

Lors de l'utilisation du plan de cuisson, le filtre se trouve en regard de l'orifice du compartiment de recyclage, et le clapet associé à cet orifice est en position ouverte. Les moyens d'aspiration sont en grand débit. Une partie de l'air est alors extraite du logement par l'intermédiaire du compartiment d'extraction dont l'orifice est ouvert, et l'autre partie de l'air passe sur le filtre à odeurs, dans le compartiment de recyclage et est réinsufflé sur le plan de cuisson.When using the hob, the filter is in look of the orifice of the recycling compartment, and the valve associated with this orifice is in the open position. The suction means are great debit. Part of the air is then extracted from the housing via of the extraction compartment with the opening open, and the other part of the air passes over the odor filter, into the recycling compartment and is reinserted on the hob.

Ce régime de fonctionnement permet de limiter la dépression créée dans le logement tout en aspirant un grand débit sur le plan de cuisson, puisqu'une partie du débit est envoyée à l'extérieur du bâtiment, et l'autre partie est recyclée. Ce régime de fonctionnement permet également de limiter les déperditions thermiques en raison du recyclage d'une partie de l'air. Enfin ce recyclage d'une partie de l'air sur le plan de cuisson permet de créer, au niveau de ce plan de cuisson, un rideau d'air augmentant l'efficacité de captation des odeurs et vapeurs.This operating regime makes it possible to limit the depression created in the housing while aspirating a large flow in terms of cooking, since part of the flow is sent outside the building, and the other part is recycled. This operating regime allows also limit heat loss due to recycling of part of the air. Finally, this recycling of part of the air in terms of cooking creates an air curtain at this cooking level increasing the efficiency of capturing odors and vapors.

Lorsque le plan de cuisson n'est pas utilisé, le filtre à odeurs se trouve en regard de l'orifice du compartiment d'extraction et le clapet associé à l'orifice du compartiment de recyclage obture cet orifice tandis que les moyens d'aspiration assurent un faible débit d'extraction. Il n'y a donc pas de débit recyclé, et la totalité du passage de l'air extrait, non chargé en odeurs de cuisine, permet au filtre à odeurs de se désorber progressivement. Ainsi, les phénomènes de relargage d'odeurs sont limités lorsque la hotte repasse en grand débit avec recyclage. Pour une meilleure désorption des odeurs, l'air extrait peut être chauffé momentanément avant de passer sur le filtre.When the hob is not in use, the odor filter is located opposite the orifice of the extraction compartment and the valve associated with the orifice of the recycling compartment closes this orifice while that the suction means ensure a low extraction rate. There is therefore no recycled flow, and the entire passage of the extracted air, no loaded with kitchen odors, allows the odor filter to desorb gradually. Thus, the phenomena of release of odors are limited when the hood returns to high flow with recycling. For better desorption of odors, the extracted air can be heated temporarily before to pass over the filter.

Dans ce second mode de fonctionnement, la hotte assure le débit d'extraction permanent réglementaire en cuisine.In this second operating mode, the hood ensures regulatory permanent extraction rate in the kitchen.

Suivant une première forme d'exécution de cette hotte, les moyens d'aspiration sont constitués par un moto-ventilateur logé dans le caisson de la hotte, en amont des deux compartiments d'extraction et de recyclage, un clapet amovible étant prévu, qui obture l'orifice du compartiment de recyclage lorsque le ventilateur assure un faible débit. According to a first embodiment of this hood, the suction means are constituted by a motor-fan housed in the hood casing, upstream of the two extraction compartments and recycling, a removable valve being provided, which closes the orifice of the recycling compartment when the fan ensures a low flow.

Avantageusement, le clapet associé à l'orifice du compartiment de recyclage est monté pivotant entre une position dans laquelle il obture cet orifice et une position dans laquelle il ouvre celui-ci.Advantageously, the valve associated with the orifice of the compartment is pivotally mounted between a position in which it closes this orifice and a position in which it opens it.

Selon une seconde forme d'exécution de cette hotte, les moyens d'aspiration sont constitués par deux moto-ventilateurs logés respectivement dans le compartiment d'aspiration et dans le compartiment de recyclage, celui logé dans le compartiment d'aspiration assurant la ventilation du logement et l'autre ne fonctionnant qu'en période d'utilisation d'une table de cuisson disposée sous la hotte.According to a second embodiment of this hood, the suction means consist of two motor-fans housed respectively in the suction compartment and in the compartment recycling, the one housed in the suction compartment ensuring ventilation of the house and the other only working during the period using a hob located under the hood.

Selon une troisième forme d'exécution de cette hotte, les moyens d'aspiration sont constitués par un groupe de ventilation, par exemple de ventilation centralisée, aspirant en permanence l'air dans le compartiment d'extraction et par un moto-ventilateur monté dans le compartiment de recyclage et ne fonctionnant qu'en période d'utilisation d'une table de cuisson disposée sous la hotte.According to a third embodiment of this hood, the suction means are constituted by a ventilation group, by example of centralized ventilation, permanently drawing air into the extraction compartment and by a motor-fan mounted in the recycling compartment and operating only during use a hob placed under the hood.

L'évacuation de l'air extrait peut être assurée par un ventilateur collectif placé, par exemple, en haut d'une colonne de ventilation mécanique contrôlée. Le ventilateur placé dans la hotte n'a alors pour seule fonction que d'assurer le recyclage de l'air à travers le filtre à odeurs.The extraction of extracted air can be ensured by a fan collective placed, for example, at the top of a ventilation column mechanically controlled. The fan placed in the hood then only has function of ensuring the recycling of air through the odor filter.

Suivant une possibilité, le filtre à odeurs est monté coulissant entre les deux positions dans lesquelles il est respectivement en regard de l'orifice du compartiment d'extraction et de l'orifice du compartiment de recyclage.According to one possibility, the odor filter is mounted sliding between the two positions in which it is respectively opposite the opening of the extraction compartment and the opening of the recycling.

Suivant une autre possibilité, le filtre à odeurs est monté pivotant entre les deux positions dans lesquelles il est respectivement en regard de l'orifice du compartiment d'extraction et de l'orifice du compartiment de recyclage.Alternatively, the odor filter is fitted pivoting between the two positions in which it is respectively in view of the hole in the extraction compartment and the hole in the recycling compartment.

Avantageusement, les mouvements respectifs du filtre à odeurs et du clapet associé à l'orifice du compartiment de recyclage sont couplés. En outre, le mouvement du filtre à odeurs est associé au changement du régime de fonctionnement du moto-ventilateur.Advantageously, the respective movements of the odor filter and the valve associated with the orifice of the recycling compartment are coupled. In addition, the movement of the odor filter is associated with the change of operating mode of the fan motor.

Ainsi, par exemple, le seul mouvement du filtre à odeurs déplacé par exemple par un levier permet d'actionner simultanément le clapet associé à l'orifice du compartiment de recyclage, et de modifier le régime de fonctionnement du moto-ventilateur. So, for example, the only movement of the odor filter moved for example by a lever allows to simultaneously actuate the valve associated with the orifice of the recycling compartment, and to modify the regime of the fan motor.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit en référence au dessin schématique annexé, représentant, à titre d'exemples non limitatifs, deux formes d'exécution de cette hotte :

  • Figures 1 et 2 représentent, à titre d'exemple non limitatif, une première forme d'exécution de cette hotte en coupe longitudinale disposée au-dessus d'un plan de travail, respectivement lors d'un fonctionnement à haut débit du moto-ventilateur et d'un fonctionnement à bas débit de celui-ci ;
  • Figure 3 est une vue en coupe longitudinale d'une seconde hotte ;
  • Figure 4 est une vue schématique d'un bâtiment comportant plusieurs hottes conformes à celle de figure 3.
    • In any case, the invention will be clearly understood with the aid of the description which follows with reference to the appended schematic drawing, representing, by way of nonlimiting examples, two embodiments of this hood:
  • Figures 1 and 2 show, by way of nonlimiting example, a first embodiment of this hood in longitudinal section disposed above a work surface, respectively during high speed operation of the motor-fan and a low flow operation thereof;
  • Figure 3 is a longitudinal sectional view of a second hood;
  • Figure 4 is a schematic view of a building comprising several hoods conforming to that of Figure 3.

    • La figure 1 représente un plan de cuisson 2 adossé à un mur 3 en partie haute duquel est ménagée une ouverture 4 débouchant à l'extérieur du bâtiment. Une hotte disposée au-dessus du plan de cuisson comprend une partie principale inférieure 5 contenant un moto-ventilateur 6, et présentant une face inférieure ouverte équipée d'un filtre à graisses 7.Figure 1 shows a hob 2 against a wall 3 in the upper part of which is formed an opening 4 leading to outside the building. A hood placed above the hob includes a lower main part 5 containing a motor-fan 6, and having an open underside equipped with a grease filter 7.

    La partie haute de la hotte comprend deux compartiments communiquant avec la partie principale par deux orifices, un compartiment 8 relié par une tubulure 9 à l'ouverture débouchant à l'extérieur du bâtiment et un compartiment 10 ou compartiment de recyclage assurant le recyclage de l'air par un canal 12 s'étendant au moins sur la partie avant de la hotte et éventuellement sur les parties latérales de celle-ci. Les compartiments 8 et 10 communiquent avec la partie principale, respectivement par des ouvertures 13 et 14. Une glissière 15 est prévue au niveau des ouvertures 13 et 14 dans laquelle est monté coulissant un filtre à odeurs 16 de surface correspondant sensiblement à la surface de chaque ouverture 13, 14. A l'orifice 14 est également associé un clapet 17 pivotant autour d'un axe 18 entre une position d'ouverture de l'orifice 14 représentée à la figure 1, une position de fermeture de celui-ci représentée à la figure 2.The upper part of the hood has two compartments communicating with the main part through two openings, a compartment 8 connected by a tube 9 to the opening opening to the outside of the building and a compartment 10 or recycling compartment ensuring the air recirculation through a channel 12 extending at least on the front part of the hood and possibly on the side parts thereof. The compartments 8 and 10 communicate with the main part, respectively by openings 13 and 14. A slide 15 is provided at the level of the openings 13 and 14 in which a filter is slidably mounted with odors 16 of surface corresponding substantially to the surface of each opening 13, 14. A port 17 is also associated with a valve 17 pivoting about an axis 18 between an opening position of the orifice 14 shown in Figure 1, a closed position thereof shown in Figure 2.

    Enfin, le moto-ventilateur 6 est susceptible de deux débits distincts, à savoir un premier débit de base correspondant à une extraction permanente réglementaire du logement et un débit plus important correspondant à un débit mis en oeuvre lors de l'utilisation de la table de cuisson 2. Des résistances de chauffage 19 sont disposées en dessous de l'orifice 13 du compartiment 8.Finally, the fan motor 6 is capable of two flows distinct, namely a first basic flow corresponding to an extraction permanent housing regulation and higher throughput corresponding to a flow implemented when using the table cooking 2. Heating resistors 19 are arranged below orifice 13 of compartment 8.

    Cette hotte fonctionne de la façon suivante : Lorsque la table de cuisson est utilisée, comme tel est le cas représentée à la figure 1, le moto-ventilateur offre le débit maximal, le filtre à odeurs 16 est disposé en regard de l'ouverture 14 du compartiment de recyclage 10 et le clapet 17 est ouvert. Le débit se partage donc entre un débit d'extraction vers l'extérieur par l'ouverture 4 et un débit recyclé par le compartiment 10, comme montré par les flèches de la figure 1. Le débit d'extraction est important, ce qui assure une bonne captation des vapeurs et des odeurs sur le plan de cuisson et le débit extrait réduit ne perturbe pas l'aéraulique du logement. Lorsque le plan de cuisson n'est pas utilisé, le filtre à odeurs 16 est déplacé dans la position représentée à la figure 2 dans laquelle il se trouve en regard de l'orifice 13 débouchant dans le compartiment 8. Le clapet 17 est en position de fermeture et le moto-ventilateur fonctionne à petit débit tout en assurant le débit de base d'extraction réglementaire de la cuisine. Les résistances de chauffage 19 peuvent être alimentées. La totalité du débit d'air, qui correspond au débit de base d'extraction passe sur le filtre à odeurs avant d'être envoyée à l'extérieur. Il est ainsi possible, tout en assurant un débit de base d'extraction réglementaire du logement, de réaliser la désorption des odeurs au niveau du filtre 16, qui est favorisée par le chauffage au moins momentané de l'air par l'intermédiaire des résistances 19. Il doit être noté que cette désorption du filtre à odeurs évite, lors du fonctionnement de la hotte à grand débit dans la configuration de figure 1 de relarguer des odeurs à l'intérieur de la cuisine.This hood operates as follows: When the table cooking is used, as is the case represented in figure 1, the motor-fan offers the maximum flow, the odor filter 16 is arranged in view of the opening 14 of the recycling compartment 10 and the valve 17 is open. The flow is therefore divided between an extraction flow to the exterior by the opening 4 and a flow recycled by the compartment 10, as shown by the arrows in figure 1. The extraction rate is important, which ensures good capture of vapors and odors on the hob and the reduced extract flow does not disturb the aeraulics housing. When the hob is not in use, the odor filter 16 is moved to the position shown in Figure 2 in which it located opposite the orifice 13 opening into the compartment 8. The valve 17 is in the closed position and the fan motor operates at small flow while ensuring the basic flow of regulatory extraction of the cooked. The heating resistors 19 can be supplied. The total air flow, which corresponds to the base extraction flow rate on the odor filter before being sent outside. It is thus possible, while ensuring a basic throughput of regulatory extraction of housing, to carry out the desorption of odors at the level of the filter 16, which is favored by at least momentary heating of the air through the resistances 19. It should be noted that this desorption of the odor filter avoids, during the operation of the hood with high flow in the Figure 1 configuration to release odors inside the kitchen.

    Les figures 3 et 4 représentent une autre forme d'exécution de cette hotte, dans laquelle les mêmes éléments sont désignés par les mêmes références que précédemment.Figures 3 and 4 show another embodiment of this hood, in which the same elements are designated by the same references than before.

    Dans le cas de cette hotte, l'ouverture 4, disposée à l'extrémité de la tubulure 9 communiquant avec le compartiment 8 d'extraction de la hotte, débouche dans un conduit 22 qui appartient à un réseau de ventilation mécanique contrôlée d'un bâtiment, comme représenté à la figure 4, et dans lequel l'extraction d'air est réalisée à partir d'un moto-ventilateur unique disposé dans un caisson 23 situé en toiture, dans la forme d'exécution décrite. Le moto-ventilateur 23 va donc assurer en permanence le débit de ventilation de base de la pièce considérée. La hotte contient un moto-ventilateur 24 disposé dans le compartiment d'extraction.In the case of this hood, the opening 4, arranged at the end of the tubing 9 communicating with the compartment 8 for extracting the hood, leads into a duct 22 which belongs to a network of controlled mechanical ventilation of a building, as shown in Figure 4, and in which the air extraction is carried out from a motor-fan single disposed in a box 23 located on the roof, in the described embodiment. The motor fan 23 will therefore ensure the basic ventilation rate of the room in question. The hood contains a motor-fan 24 arranged in the extraction compartment.

    Lorsque la table de cuisson 2 n'est pas utilisée, le moto-ventilateur est à l'arrêt, et l'air est extrait de la cuisine par l'intermédiaire du compartiment 8, après avoir traversé le filtre à odeurs 16, qui se trouve dans ce cas au niveau de l'orifice du compartiment d'extraction, comme montré dans la hotte représentée au milieu à la figure 4. Cette ventilation s'accompagne, comme précédemment, d'une désorption du filtre à odeurs. Au contraire, en période d'utilisation du plan de cuisson, comme montré à la figure 3 ainsi qu'en haut et en bas de la figure 4, le filtre à odeurs se trouve au niveau de l'orifice du compartiment de recyclage 10, et le moto-ventilateur 24 est en fonctionnement. Ce moto-ventilateur a pour fonction d'assurer le recyclage de l'air, après passage de l'air à travers le filtre à odeurs 16.When hob 2 is not in use, the fan motor is stopped, and the air is extracted from the kitchen via compartment 8, after passing through the odor filter 16, which is in this case at the orifice of the extraction compartment, as shown in the hood shown in the middle in Figure 4. This ventilation is accompanied, as before, by a desorption of the odor filter. On the contrary, when the hob is in use, as shown in Figure 3 and at the top and bottom of Figure 4, the odor filter located at the orifice of the recycling compartment 10, and the motor-fan 24 is in operation. This motor fan has the function ensure air recycling, after the air has passed through the filter odors 16.

    Cette forme d'exécution est avantageuse dans le cadre d'un habitat collectif, car elle permet de respecter les normes de ventilation du bâtiment, sans déséquilibre de l'installation lors de l'utilisation en débit maximum d'aspiration en cuisine.This embodiment is advantageous in the context of a collective housing, because it makes it possible to comply with the ventilation standards of the building, without imbalance of the installation during use in flow maximum suction in the kitchen.

    Comme il ressort de ce qui précède l'invention apporte une grande amélioration à la technique existante en fournissant une hotte assurant un débit de base d'extraction permanent réglementaire, un débit d'extraction important pour une bonne captation sur le plan de cuisson, en cas d'utilisation de celui-ci, un débit extrait réduit ne perturbant pas l'aéraulique du logement, un débit recyclé avec captation des odeurs, avec désorption et régénération du filtre à odeurs lors de l'utilisation de la hotte avec un débit de base d'extraction permanent, ce qui limite les risques de relargage des odeurs dans le logement.As is apparent from the above, the invention provides a great improvement to the existing technique by providing a hood ensuring a basic permanent extraction base flow, a flow important extraction for a good capture on the hob, in if it is used, a reduced extract flow does not disturb the ventilation of the accommodation, a recycled flow with odor capture, with desorption and regeneration of the odor filter when using the hood with a permanent extraction base rate, which limits the risks of release of odors in the accommodation.

    Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de cette hotte, décrite ci-dessus à titre d'exemple, elle en embrasse au contraire toutes les variantes. C'est ainsi notamment que le déplacement du filtre à odeurs 16 pourrait ne pas se faire par coulissement dans des glissières 15, mais par rotation, sans que l'on sorte pour autant du cadre de l'invention.It goes without saying that the invention is not limited to the single form of this hood, described above by way of example, it on the contrary embraces all variants. This is how the movement of odor filter 16 may not be possible by sliding in slides 15, but by rotation, without going out of the scope of the invention.

    Claims (10)

    1. Motorised cooking hood, of the type comprising a box (5) which is associated with means (6) which are able to provide at least two suction flows, and the lower open face of which is equipped with a grease filter (7), the top portion of the box comprises two compartments (8, 10) which communicate with the main portion of the hood by means of two orifices (13, 14), one (8) of the compartments being connected to an opening (4) which discharges to the exterior of the building directly or through a ventilation network and the other compartment (10) providing the recycling of air inside the item, an odour filter (16) being provided, characterised in that the odour filter is displaceable between a position in which it is facing the orifice (13) of the extraction compartment (8) when the suction means (6) are providing a low flow, and a position in which it is facing the orifice (14) of the recycling compartment (10) when the suction means (6) are providing a high flow.
    2. Hood according to claim 1, characterised in that the suction means are formed by a motor fan (6) which is accommodated in the box (5) of the hood, upstream of the two compartments (8, 10) for extraction and for recycling, a moveable flap (17) being provided which closes the orifice (14) of the recycling compartment (10) when the fan is providing a low flow.
    3. Hood according to claim 2, characterised in that the flap associated with the orifice (14) of the recycling compartment is mounted so as to pivot between a position in which it closes, this orifice and a position in which it opens the latter.
    4. Hood according to claim 1, characterised in that the suctions means are formed by two motor fans which are accommodated respectively in the suction compartment and in the recycling compartment, the one accommodated in the suction compartment providing the ventilation of the house and the other functioning only during periods of use of a hob which is disposed under the hood.
    5. Hood according to claim 1, characterised in that the suction means are formed by a ventilation assembly, for example of centralised ventilation, permanently suctioning the air into the extraction compartment and by means of a motor fan mounted in the recycling compartment and only functioning during periods of use of a hob which is disposed under the hood.
    6. Hood according to one of the claims 1 to 5, characterised in that the odour filter (16) is mounted so as to slide between the two positions in which it is respectively facing the orifice (13) of the extraction compartment (8) and the orifice (14) of the recycling compartment (10).
    7. Hood according to one of the claims 1 to 5, characterised in that the odour filter is mounted so as to pivot between the two positions in which it is respectively facing the orifice of the extraction compartment and the orifice of the recycling compartment.
    8. Hood according to one of the claims 1 to 7, characterised in that the respective movements of the odour filter (14) and of the flap (17) associated with the orifice (14) of the recycling compartment (10) are coupled.
    9. Hood according to one of the claims 1 to 8, characterised in that the movement of the odour filter (16) is associated with a change in the mode of operation of the motor fan (6).
    10. Hood according to one of the claims 1 to 9, characterised in that its box contains heating means such as an electric resistor (19).
    EP01420179A 2000-08-09 2001-08-06 Motorized extracting hood for kitchen Expired - Lifetime EP1180648B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0010492 2000-08-09
    FR0010492A FR2812933B1 (en) 2000-08-09 2000-08-09 MOTORIZED KITCHEN HOOD

    Publications (2)

    Publication Number Publication Date
    EP1180648A1 EP1180648A1 (en) 2002-02-20
    EP1180648B1 true EP1180648B1 (en) 2004-01-21

    Family

    ID=8853440

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01420179A Expired - Lifetime EP1180648B1 (en) 2000-08-09 2001-08-06 Motorized extracting hood for kitchen

    Country Status (5)

    Country Link
    EP (1) EP1180648B1 (en)
    AT (1) ATE258294T1 (en)
    DE (1) DE60101825T2 (en)
    ES (1) ES2211750T3 (en)
    FR (1) FR2812933B1 (en)

    Families Citing this family (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    KR100595573B1 (en) 2004-09-20 2006-07-03 엘지전자 주식회사 Exhaust device for kitchen
    FR2887968B1 (en) * 2005-07-01 2007-09-07 Aldes Aeraulique Sa VENTILATION DEVICE FOR A KITCHEN AND MOTORIZED HOOD FOR VENTILATION
    NL1031508C2 (en) * 2006-04-04 2007-10-05 Abk Innovent B V Device for extracting air, connecting device and method for such a device, building provided with such a device.
    NL2005384C2 (en) * 2010-09-23 2012-03-26 Intell Properties B V Cooker hood and method of ventilating a kitchen.
    EP3667176B1 (en) * 2018-12-11 2024-01-10 Franke Futurum AB Fume extractor hood, method for operating a fume extractor hood

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3837269A (en) * 1972-11-22 1974-09-24 Elster S Inc Effluent ventilation and cleaning apparatus
    US4235220A (en) * 1979-06-07 1980-11-25 Hepner Robert J Cooking stove exhaust air filtration system
    DE9105430U1 (en) * 1991-05-02 1992-09-03 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
    DE19809223A1 (en) * 1998-03-04 1999-09-09 Bosch Siemens Hausgeraete Extractor hood for kitchens

    Also Published As

    Publication number Publication date
    DE60101825D1 (en) 2004-02-26
    ATE258294T1 (en) 2004-02-15
    ES2211750T3 (en) 2004-07-16
    DE60101825T2 (en) 2004-11-04
    FR2812933B1 (en) 2002-11-15
    EP1180648A1 (en) 2002-02-20
    FR2812933A1 (en) 2002-02-15

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