EP3467387B1 - Hotte aspirante pourvu de filtre à graisse rétroéclairé - Google Patents

Hotte aspirante pourvu de filtre à graisse rétroéclairé Download PDF

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Publication number
EP3467387B1
EP3467387B1 EP18194704.5A EP18194704A EP3467387B1 EP 3467387 B1 EP3467387 B1 EP 3467387B1 EP 18194704 A EP18194704 A EP 18194704A EP 3467387 B1 EP3467387 B1 EP 3467387B1
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EP
European Patent Office
Prior art keywords
filter
extractor hood
illuminant
hood according
light
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.)
Active
Application number
EP18194704.5A
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German (de)
English (en)
Other versions
EP3467387A1 (fr
Inventor
Dominik Abele
Jens Herbst
Simon Hörter
Simon Kammerer
Thomas Kotlinski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
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Publication of EP3467387A1 publication Critical patent/EP3467387A1/fr
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Classifications

    • 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
    • F24C15/2064—Removing cooking fumes illumination for cooking hood

Definitions

  • the present invention relates to an extractor hood with a backlit grease filter.
  • filter units in particular filter cassettes, are used to separate impurities, in particular fat particles, from the vapor that is sucked in through the extractor hood.
  • These filter units are therefore also referred to as grease filters.
  • expanded metal filters are known which are arranged in several layers one behind the other.
  • the EP 3,216,508 discloses a filter unit for an extractor hood, which has at least one filter layer made of a plastic material.
  • another filter element is described, which can consist of plastic threads.
  • lights are generally provided which are set up to illuminate a work environment provided below the extractor hood.
  • the working environment is usually the hob located under the extractor hood.
  • the lights and the filter units of an extractor hood are separate components.
  • lighting modules installed next to the filter unit and on the edge of the hood are usually provided for lighting.
  • the U.S. 5,145,500 A describes a trimmable filter for a cooker hood.
  • the filter covers both the suction opening and the light from the extractor hood that is adjacent to the suction opening.
  • a plastic plate that is connected to the actual filter element is used to cover the light.
  • the filter element and the plastic plate are connected via a profile by a separating rail with double-sided elongated channels. The recess in which the light is received is delimited at the bottom by the plastic plate and to the suction opening by a further plate.
  • the DE 11 90 157 B describes a suction hood with a built-in fan, in which the fan has a coarse porous filter instead of a rotating fan blade and in which the suction hood is covered at the bottom by a transparent protective plate.
  • the fan has a coarse porous filter instead of a rotating fan blade and in which the suction hood is covered at the bottom by a transparent protective plate.
  • the object of the present invention is to find an alternative arrangement of the two functional carriers, lighting and filters, in extractor hoods.
  • an extractor hood is to be provided in which the available area can be optimally used in a simple manner.
  • the invention is based on an extractor hood with an extractor housing that has an extraction opening, a fan accommodated in the extractor housing and a filter unit arranged at least partially in front of the extraction opening in the flow direction for cleaning the air sucked in by the fan.
  • the filter unit has a filter mat with at least one filter layer, which consists of a plastic material and has openings, the size of which is fixed.
  • at least one illuminant is arranged behind the filter unit in the direction of flow.
  • the at least one illuminant is aligned such that a main direction of propagation of the emitted light of the illuminant is oriented in the direction of the filter unit in such a way that the emitted light is scattered by the filter mat onto a working environment provided under the extractor hood.
  • plastic material plastic is made from materials that mainly consist of macromolecules.
  • the respective macromolecules of a plastic are polymers and are therefore made up of repeating basic units.
  • the polymers can be made from natural substances or purely synthetic.
  • polyester, polypropylene or the like can be used as the plastic material.
  • the filter layer has openings whose size is fixed.
  • the "opening" is the passage opening or the space between filter webs made of plastic material in the respective filter layer.
  • the filter bars are also referred to below as bars.
  • the openings are determined by the distance between the filter webs. In the context of the invention, the openings are also referred to as holes or meshes.
  • the incoming vapor can flow through the openings in the filter layer.
  • Openings that are fixed in size are openings that cannot be changed in size, that is, the filter webs between the openings cannot be moved.
  • the openings of a filter layer are thus permanently the same size and the size of the openings is predetermined during the production of a filter layer.
  • the openings of a filter layer are preferably of the same size.
  • the openings in the filter layer are particularly preferably fine or small compared to the meshes from the expanded metal layers known from the prior art.
  • the "lamp” is intended to emit visible light.
  • the light source of the lighting device can be, for example, an LED (light emitting diode), an incandescent lamp or a halogen spotlight.
  • main direction of propagation means the direction in which the lamp emits the highest percentage of light intensity.
  • the at least one lighting means is arranged in the interior of the extractor housing.
  • the luminous means is preferably arranged on a plane that is essentially parallel to the surface of the filter surface.
  • the lighting means is laterally offset from the filter surface and is arranged on a plane essentially orthogonal to the filter surface.
  • the at least one lighting means is integrated into the filter unit, and the filter unit can be removed.
  • This unit is built into the extractor hood and can be removed for cleaning.
  • the illuminants are particularly advantageously designed to be resistant to cleaning, for example in a dishwasher.
  • the plastic material is at least partially translucent and / or light-scattering.
  • a control device for adjusting the lighting means includes a change in a color temperature, a light intensity, a direction of light emission, an illumination area and / or a duration of light emission.
  • color temperature is a measure for determining the respective color impression of a light source.
  • the strength of the light is referred to as light intensity in the context of the invention.
  • the intensity is the proportion of the total amount of light that is emitted by a light source in a given spatial direction.
  • the direction of the output of the light from a light source is referred to as the direction of light output.
  • the illumination area is the area in a room or an area which is wholly or partially illuminated or irradiated by means of the emitting light of a light source.
  • the duration of the light output can include the output duration itself and, if necessary, intervals to be observed between the output of the light. Accordingly, the output of the light can be, for example, a blinking signal.
  • control device sets the at least one lighting means as a function of an operating state of the extractor hood.
  • An operating state of the extractor hood is, for example, “switched on”, “switched off” or the set power level.
  • a cover layer is provided in front of the filter mat in the direction of flow, which is arranged essentially parallel to the surface of the filter mat and is at least partially air-permeable.
  • the cover layer is advantageously formed from a metal.
  • the cover layer can be constructed in the same way as the other filter layers and also be different in appearance and function.
  • a cover layer can also be arranged behind the filter layer in the direction of flow.
  • the task of the top layer is, for example, the mechanical protection of the susceptible plastic filter inner layers and / or the visual enhancement of the overall filter.
  • the top layer (s) should be sufficiently air-permeable to achieve a low pressure loss.
  • the filter unit is surrounded by a surrounding frame. In this way, all filter layers are safely enclosed in a frame. This has the advantage that the filter element is easier to handle if it is to be removed from the extractor hood for cleaning purposes, for example.
  • the at least one filter layer consists of at least two layers and the layers are each formed from plastic profiles.
  • an element is referred to as a layer from which a filter layer is at least partially formed and which consists of a plastic material.
  • a filter layer has at least two layers which lie one on top of the other in the filter layer, that is to say are stacked, and through which inflowing vapor flows one after the other.
  • the layers can be present as separate elements before the assembly of the filter layer.
  • the layers of a filter layer are preferably formed from plastic profiles.
  • a profile is a long, thin element that is flexible or rigid.
  • the length of the profile can be limited in a simple manner depending on the size of the layer to be used.
  • the cross section of the plastic profile can, for example, be circular, oval, flat or square or polygonal.
  • a layer of a filter layer can have several plastic profiles, which means that the layer does not have to consist of a single plastic profile.
  • the filter layer consists of woven or braided plastic material or is a plastic plate with openings made.
  • the filter webs which delimit the openings formed as meshes, are formed by threads.
  • the filter webs are formed by the strip of material remaining after the holes have been made in the plastic plate.
  • the production as a woven or braided material and the production as a plastic plate can be carried out easily on the one hand.
  • the mesh size that is to say the size of the openings or spaces between the plastic, can be set in a targeted manner.
  • FIG. 1 shows a schematic representation of a filter unit with integrated lighting means.
  • the plastic filter layers 101 can be designed in any color.
  • the filter layers 101 are framed by a frame 102 and a cover layer 103 arranged in front of the filter layers 101 in the direction of flow.
  • the top layer is designed as a metallic design panel, through the openings of which in the form of wide slits the sucked in air enters the filter.
  • the filter unit 101 is mounted in an extractor housing 104 in such a way that the filter unit can be easily removed and reinserted by a user, for example for cleaning purposes.
  • two light modules 105 are attached in a plane surface parallel to the filter surface.
  • the lamps are intended to emit visible light.
  • a control device not shown, is provided for setting the lighting means.
  • the lighting means can be, for example, an LED (light emitting diode), an incandescent lamp or a halogen spotlight.
  • the light module further comprises at least one holder for the light source and at least one contact point for connecting the light source to the control device, by means of which the voltage supply of the contact point can be adjusted.
  • the air 106 mixed with fat particles is sucked in by a fan (not shown) and passed through the filter 101 via the openings in the design panel 103.
  • the air 107 cleaned in the process is guided inside the extractor housing past the lighting means to the fan.
  • the light 108 emitted by the lighting means 105 is oriented in the direction of the filter surface 101 and passes through it.
  • the light 108 is scattered in the direction of the hob arranged under the extractor hood.
  • Figure 2 shows a schematic representation of a filter unit and lamps arranged laterally in the extractor housing. To avoid repetition, the same components are in Figure 2 with the same reference numerals Figure 1 Mistake.
  • Figure 1 In contrast to the exemplary embodiment Figure 1 are in Figure 2 the light modules 201 attached to the side of the extractor housing 104.
  • the lighting means 201 are aligned in such a way that the emitted light 108 is oriented in the direction of the filter surface 101 and is scattered by this in the direction of the hob.
  • FIG 3 shows a schematic representation of a filter unit with integrated lighting means. Again, to avoid repetitions and for better clarity, the same components are shown in Figure 3 with the same reference numerals from Figures 1 and 2 Mistake.
  • the filter layers 101 are enclosed by a frame 102.
  • a cover layer 103 is arranged in front of the filter layers 101 in the flow direction and a cover layer 301 is arranged behind the filter layers 101 in the flow direction.
  • the frame 102 and the two cover layers 103 and 301 form a closed housing which can be removed by the user as a unit in the extractor housing for cleaning purposes.
  • the cover layers are designed as metallic design panels, through the openings of which in the form of wide slits the sucked in air gets into the filter and out again.
  • Two illuminants 302 are attached to the underside of the cover layer 301, seen in the direction of flow.
  • the filter unit enclosed by the frame 102 and the two cover layers 103 and 301 comprises the filter layers 101 and the lighting means 302.
  • the lighting means 302 are aligned such that the emitted light is scattered by the filter surface 101 in the direction of a working environment provided under the extractor hood.
  • FIG 4 shows an embodiment of a filter layer 40 of a filter mat.
  • the filter mat can be constructed from several filter layers 40.
  • the filter layer 40 is made of plastic material.
  • the filter layer 40 is made up of two layers 401, 402.
  • the layers 401, 402 are each formed from plastic profiles 403.
  • the number of plastic profiles 403 in a layer can be adapted as required, as can the distance between the plastic profiles.
  • the plastic profiles 403 have a circular cross section.
  • the cross section can, however, also be oval, flat or square or polygonal.
  • the thickness of the plastic profiles 403 can be adjusted as required.
  • the Plastic profiles 403 are arranged in a layer 401, 402 parallel to one another at a defined distance from one another. Because of the distance between the plastic profiles, there are spaces between the plastic profiles 403, through which the inflowing vapor can pass.
  • the alignment of the plastic profiles of one layer is different from the alignment of the plastic profiles of another layer.
  • These layers are preferably one above the other.
  • the plastic profiles of one layer are aligned at a right angle to the plastic profiles of another layer. At the contact points where the plastic profiles of the two layers rest against one another, they are connected to one another.
  • the plastic profiles can be glued or fused to one another there.
  • the at least two layers are therefore inextricably linked to one another.
  • the size of the openings is therefore fixed, which means that the size of the openings cannot change.
  • the size of the openings can already be determined during the manufacture of the filter layer depending on the requirements and no longer be accidentally changed, for example during the installation of the filter unit in an extractor hood, or changed by the accumulation of impurities and the passage of particles.
  • FIG. 5 shows a further embodiment of a filter layer 50 of a filter mat.
  • the plastic material is woven.
  • the structure of this filter layer 50 also creates openings 501 between the plastic material 502; in particular, in this embodiment the openings 501 are meshes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (12)

  1. Hotte aspirante comprenant un boîtier de hotte aspirante pourvu d'un orifice d'aspiration, un ventilateur logé dans le boîtier de hotte aspirante (104) et un bloc de filtre disposé au moins en partie devant l'orifice d'aspiration dans le sens d'écoulement pour purifier l'air aspiré par le ventilateur, dans laquelle le bloc de filtre comprend une natte de filtre comprenant au moins une feuille filtrante (40), et
    dans laquelle, derrière le bloc de filtre dans le sens de l'écoulement, au moins une source lumineuse (105) est disposée,
    caractérisée en ce que la feuille filtrante est constituée d'un matériau plastique et comprend des orifices dont la grandeur est fixée,
    en ce que le matériau plastique est au moins en partie translucide et/ou diffuseur de lumière, et
    en ce que l'au moins une source lumineuse (105) est configurée de manière telle qu'une direction principale de propagation de la lumière émise de la source lumineuse (105) est orientée dans la direction du bloc de filtre de telle manière que la lumière émise est diffusée depuis la natte de filtre sur un environnement de travail agencé sous la hotte aspirante.
  2. Hotte aspirante selon la revendication 1, dans laquelle l'au moins une source lumineuse (105) est disposée dans l'espace intérieur du boîtier de hotte aspirante (104).
  3. Hotte aspirante selon la revendication 2, dans laquelle la source lumineuse (105) est disposée sur un plan essentiellement parallèle en surface à la surface du filtre (101).
  4. Hotte aspirante selon la revendication 2, dans laquelle la source lumineuse (105) est décalée latéralement par rapport à la surface du filtre (101) et est disposée sur un plan essentiellement orthogonal à la surface du filtre (101).
  5. Hotte aspirante selon la revendication 1, dans laquelle l'au moins une source lumineuse (105) est intégrée dans le bloc de filtre, et le bloc de filtre est amovible.
  6. Hotte aspirante selon l'une des revendications précédentes, dans laquelle un dispositif de commande pour régler la source lumineuse (105) est prévu, et le réglage de la source lumineuse (105) comprend une modification d'une température de couleur, d'une intensité lumineuse, d'une direction d'émission de lumière, d'une zone d'éclairage et/ou d'une durée d'une émission de lumière.
  7. Hotte aspirante selon la revendication 6, dans laquelle le dispositif de commande règle l'au moins une source lumineuse (105) en fonction d'un état de fonctionnement de la hotte aspirante.
  8. Hotte aspirante selon l'une des revendications précédentes, dans laquelle, devant la natte de filtre dans le sens d'écoulement, une couche de couverture (103, 301) disposée essentiellement parallèlement en surface à la natte de filtre est prévue, laquelle est au moins en partie perméable à l'air.
  9. Hotte aspirante selon la revendication 8, dans laquelle la couche de couverture (103, 301) est constituée d'un métal.
  10. Hotte aspirante selon l'une des revendications précédentes, dans laquelle le bloc de filtre est bordé par un cadre périphérique (102).
  11. Hotte aspirante selon l'une des revendications précédentes, dans laquelle l'au moins une feuille filtrante (40) est constituée d'au moins deux couches (401, 402) et ces couches sont formées respectivement de profilés de matière plastique.
  12. Hotte aspirante selon l'une des revendications précédentes, dans laquelle l'au moins une feuille filtrante (50) est constituée d'un matériau plastique tissé ou tressé ou est une plaque de matière plastique ayant des ouvertures ménagées.
EP18194704.5A 2017-10-05 2018-09-17 Hotte aspirante pourvu de filtre à graisse rétroéclairé Active EP3467387B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017217657.1A DE102017217657A1 (de) 2017-10-05 2017-10-05 Dunstabzugshaube mit hinterleuchtetem Fettfilter

Publications (2)

Publication Number Publication Date
EP3467387A1 EP3467387A1 (fr) 2019-04-10
EP3467387B1 true EP3467387B1 (fr) 2021-09-01

Family

ID=63637679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18194704.5A Active EP3467387B1 (fr) 2017-10-05 2018-09-17 Hotte aspirante pourvu de filtre à graisse rétroéclairé

Country Status (2)

Country Link
EP (1) EP3467387B1 (fr)
DE (1) DE102017217657A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190157B (de) * 1961-11-04 1965-04-01 Junker & Ruh G M B H Absaugehaube
DE3640989A1 (de) * 1986-12-01 1988-06-09 Bosch Siemens Hausgeraete Dunstabzugshaube
US5145500A (en) * 1992-04-28 1992-09-08 Air Kontrol, Inc. Trimmable range hood filter
DE102015006693A1 (de) * 2015-05-28 2016-12-01 Adek Bauteile Gmbh Filtergewebe eines Gewebefilters zur Luftreinigung in einer Dunstabzugshaube
DE102016203783A1 (de) 2016-03-08 2017-09-14 BSH Hausgeräte GmbH Filterelement für Dunstabzugshaube

Also Published As

Publication number Publication date
EP3467387A1 (fr) 2019-04-10
DE102017217657A1 (de) 2019-04-11

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