EP3914864A1 - Dispositif d'évacuation des émanations pour plaque de cuisson et appareil combiné - Google Patents

Dispositif d'évacuation des émanations pour plaque de cuisson et appareil combiné

Info

Publication number
EP3914864A1
EP3914864A1 EP20701193.3A EP20701193A EP3914864A1 EP 3914864 A1 EP3914864 A1 EP 3914864A1 EP 20701193 A EP20701193 A EP 20701193A EP 3914864 A1 EP3914864 A1 EP 3914864A1
Authority
EP
European Patent Office
Prior art keywords
fan
air inlet
inlet opening
housing
extractor
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.)
Pending
Application number
EP20701193.3A
Other languages
German (de)
English (en)
Inventor
Sebastien Flesch
Guillaume LAURENT
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
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3914864A1 publication Critical patent/EP3914864A1/fr
Pending legal-status Critical Current

Links

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
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
    • 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
    • F24C15/2035—Arrangement or mounting of filters
    • 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
    • F24C15/2071—Removing cooking fumes mounting of cooking hood

Definitions

  • the present invention relates to an extractor device for a hob and a combination device with hob with extractor device.
  • an extractor device For extracting and cleaning vapors and vapors that arise when cooking on a hob, it is known to provide an extractor device that sucks the vapors and vapors down from the space above the hob. Such an extractor device is also referred to as a bowl fan or table fan.
  • the extractor device can be at least partially integrated into the hob or arranged adjacent to it.
  • the extractor device has an air inlet opening through which air is extracted downwards. In the direction of flow between the air inlet opening of the
  • At least one filter element for separating the contaminants from the intake air is arranged.
  • This at least one filter element can be arranged in a carrier device which is removably introduced into the air inlet opening.
  • Extractor hood device must have a certain height due to the at least one filter element which is arranged above the fan housing. Since the
  • Extractor hood device is usually installed in a kitchen furniture, the space required for the extractor hood device reduces the usable space in the
  • the invention is therefore based on the object of providing a solution in which
  • Extractor device has a low height and yet, with a simple structure, it is possible to reliably remove impurities from the sucked-in vapors and vapors. According to a first aspect of the invention, this object is achieved by a
  • Extractor hood device for a hob which has an air inlet opening, through which air is drawn in downwards, and a fan with a fan wheel, a motor and a fan housing, in the upper side of which an air inlet opening is provided.
  • the extractor device is characterized in that means for separating contaminants in the extractor device are provided only in the flow direction after the air inlet opening of the fan housing.
  • An extractor device for a cooktop is a device by means of which vapors and vapors, which are also referred to below as air or contaminated air, can be extracted and cleaned from the space above the cooktop.
  • directional information relates to an extractor hood device in the assembled state, in which the air inlet opening lies in the top of the extractor hood device.
  • the extractor device has an air inlet opening.
  • Extractor hood device can also have several air inlet openings.
  • the air inlet opening can be formed, for example, by a recess in the hob, which is arranged above the air inlet opening of the fan housing. Air is drawn in downwards through the air inlet opening. This means that air, especially contaminated air, is sucked in from the room above the hob and directed downwards. From the air inlet opening, the air reaches the fan, which creates the suction for sucking in the air.
  • the extractor device therefore has a fan. It is also within the scope of the invention that the
  • Extractor device has several, in particular two fans.
  • the invention is described below only on the basis of an extractor device with a fan.
  • the fan is below the air inlet and
  • the fan has a fan wheel, a motor and a fan housing.
  • the fan is in particular a radial fan.
  • the fan housing is preferably a spiral housing, which can also be referred to as a spiral housing.
  • the fan wheel is driven by the motor: the fan wheel has, in particular on the outer circumference, curved blades which extend in the axial direction of the
  • the blades can, for example, with respect to the
  • the motor can be accommodated in the fan wheel, that is to say is surrounded by the blades.
  • the axis of the fan wheel is vertical.
  • An air inlet opening is provided in the top of the fan housing.
  • the axis of the fan wheel is preferably in the middle of the
  • Air inlet opening In a vertical projection onto the fan wheel, the air inlet opening lies inside the fan wheel. In particular, the blades of the fan wheel lie outside the vertical projection of the air inlet opening.
  • the fan housing points In a vertical projection onto the fan wheel, the air inlet opening lies inside the fan wheel. In particular, the blades of the fan wheel lie outside the vertical projection of the air inlet opening.
  • a protective grille can be arranged in the air inlet opening and / or the air inlet opening, which prevents the user from accessing the motor and the fan wheel from above.
  • the extractor device is characterized in that means for separating contaminants in the extractor device are provided only in the flow direction after the air inlet opening to the fan wheel. Surfaces or elements on which are designated as means for separating contaminants
  • Contaminants especially liquid contaminants such as fat or water, are separated from the air.
  • the contaminants can accumulate on the agents or run off from them and, for example, be directed to a collecting area.
  • the blades of the fan wheel can also serve as a means of separation, the impurities only separating from them, but are generally removed from the fan wheel by rotation thereof.
  • the installation space required in the flow direction in front of the air inlet opening and in particular above the air inlet opening of the fan housing is reduced.
  • the Flow to the air inlet opening and above to the fan wheel improved.
  • the fan wheel can thus be operated at lower speeds and still reliably draw air into the extractor device. The noise level is minimized.
  • the means for separating contaminants are particularly preferably provided only in the flow direction after the fan wheel. In this way, impurities which have separated out, for example, on the blades of the fan wheel, can be easily guided, in particular hurled, to the separating means by the rotation of the fan wheel. In this embodiment, too, the overall height required for the extractor device is low.
  • the fan housing has a radial housing wall and the radial housing wall is the means for separating contaminants.
  • the radial housing wall is the spiral wall of the housing in the receiving area of the fan housing, in which the fan wheel
  • the radial housing wall surrounds the fan wheel, which is arranged in the housing.
  • the fan wheel By driving the fan wheel through the motor, the fan wheel creates a negative pressure in the fan, through which air is sucked into the air inlet opening.
  • impurities in particular liquid particles, such as fat drops and water drops, are accelerated radially outwards by the rotating fan wheel.
  • the impurities are accelerated towards the radial housing wall of the fan housing, impinge on them and are thereby separated off on the radial housing wall.
  • the fan thus acts as a centrifugal separator.
  • the fan thus acts as a centrifugal separator.
  • Extractor device no filter element for separating particles, that means no grease filter.
  • the extractor device can therefore also be used as a filterless device
  • Extractor hood device can be called.
  • an odor filter can, however, optionally be provided in or on the extractor device. However, this is also preferably arranged downstream of the fan wheel in the direction of flow.
  • the odor filter can be provided at the air outlet opening of the fan housing.
  • the odor filter is provided at one end of a channel which adjoins the fan housing in the direction of flow.
  • the fan housing can have an opening on its underside through which
  • Contaminants that have been deposited on the radial housing wall and collect on the bottom of the fan housing can be drained off.
  • At least part of the fan housing is releasably attached.
  • Extractor hood can be removable.
  • at least part of the bottom can be removable from the extractor device.
  • the outer region of the base is preferably detachably connected to the central region of the base.
  • the outer region of the base and the radial side wall are preferably designed in one piece.
  • Housing part can be prevented.
  • at least the radial housing wall and the bottom of the fan housing can be removed from the extractor device.
  • the radial housing wall and the base are preferably configured in one piece, that is to say they are permanently connected to one another or are produced integrally.
  • the radial housing wall and thus also the bottom can be attached to the top of the fan housing, which can also be referred to as a cover.
  • the attachment can take place, for example, by means of a snap connection.
  • the radial housing wall and, above it, the bottom can be fastened to the underside of a hob, under which the extractor device is arranged.
  • the fan housing has no top or cover.
  • the fan wheel is also releasably attached to at least part of the fan housing.
  • the fan wheel is preferably attached to the motor.
  • the embodiment in which, in addition to the part of the fan housing, the fan wheel is also detachably fastened, is advantageous.
  • the fan wheel can be removed and, if necessary, cleaned in a dishwasher.
  • the motor in addition to the part of the fan housing and the fan wheel, is additionally detachably fastened.
  • the motor can be attached to the extractor hood device, for example, via the fan housing.
  • the motor can be fastened to the bottom of the fan housing and the fan housing can be detachably fastened to the hob.
  • the motor which is attached to the bottom of the fan housing, can be detachably attached to a cover of the fan housing via the bottom and the radial housing wall.
  • the detachable part of the fan housing and the fan wheel are a preassembled or preassembled unit.
  • the detachable part of the fan housing and the fan wheel as a unit of the
  • Extractor hood device removed and attached to this. This makes handling, in particular cleaning, easier.
  • the motor is an additional part of the preassembled or preassembled unit consisting of a detachable part of the fan housing and fan wheel.
  • the motor is preferably dishwasher-safe. For example, this can be in one
  • the extractor device comprises an air duct which extends between the air inlet opening of the extractor device and the air inlet opening of the fan housing.
  • the air duct which can also be referred to as a chimney, can be in a recess in a hob or in a Worktop.
  • the upper edge of the air duct forms the air inlet opening of the extractor device.
  • the fan wheel can be operated at a speed of at least 1,000 revolutions / minute. This speed is used for example with a fan wheel diameter of 160mm. This speed ensures the reliable acceleration of impurities that have separated out on the fan wheel to the radial housing wall.
  • the fan wheel can also be operated at other speeds. In particular, the speed is set such that a reliable detachment of impurities from the fan wheel can be guaranteed by the speed of rotation.
  • the invention relates to a combination device which comprises a hob and at least one extractor device according to the invention.
  • the air inlet opening is preferably the
  • Extractor hood device is formed by a recess in the hob or by an air duct that is introduced into the recess.
  • Figure 1 is a schematic block diagram of an embodiment of the
  • Figure 2 is a schematic, perspective partial sectional view of an embodiment of the combination device according to the invention.
  • Figure 2a a schematic plan view of a fan housing of the
  • Extractor hood device of the combination device
  • Figure 3 is a schematic, perspective sectional view of the embodiment of the
  • Combination device of Figure 2 in the area of the air inlet opening.
  • FIG. 1 shows an embodiment of the combination device 1 according to the invention in a block diagram. Only one half of the combination device 1 is shown in FIG.
  • the combination device 1 consists of a cooktop 4 and a
  • the extractor hood device 2 comprises a fan 3 and an air duct 21.
  • the extractor device 2 has an air inlet opening 20, which in the illustrated embodiment is formed by the upper edge of the air duct 21.
  • the hob 4 consists of a cover plate 40 and heating modules 41, only one of which is visible in FIG. 1.
  • a heating module 41 is arranged below the cover plate 40.
  • the heating module 41 can be an induction heating module.
  • the heating module 41 is an electrical module or gas module. In the latter case, the heating module 41 can protrude through an opening (not shown) through the cover plate 40 of the hob 4. In the middle of the cover plate 40 is shown in FIG.
  • Embodiment introduced a recess 42.
  • the recess 42 can be a rectangular or round recess.
  • an air duct 21 of the extractor device 2 is introduced into the recess 42.
  • This air duct 21 has a height that corresponds to the distance between the top of the cover plate 40 and the bottom of the heating module 41.
  • the fan 3 of the extractor device 2 is arranged below the cooktop 4.
  • the fan 3 has a fan housing 30, a fan wheel 31 and a motor 32.
  • the motor 32 and the fan wheel 31 are accommodated in the fan housing 30.
  • the fan housing 30 preferably represents a spiral housing.
  • an air inlet opening 303 is provided in the top of the Fan housing 30, an air inlet opening 303 is provided.
  • the air inlet opening 303 is introduced in the middle of the upper side of the fan housing 30.
  • Spiral casing is the air inlet opening 303 in the middle of the surface of the
  • the fan 3 is arranged in the extractor device 2 in such a way that the air inlet opening 303 lies below the air inlet opening 20 and is preferably in a vertical projection of the air inlet opening 20 onto the air inlet opening 303 in the air inlet opening 20.
  • the motor 32 of the fan 3 is arranged below the air inlet opening 303. This is located below the air inlet opening 20 of the extractor device 2.
  • the motor is connected to the fan wheel 31 via fastening means 33, for example via a shaft.
  • the fan wheel 31 has blades 310 on its outer radial circumference, which extend in the vertical direction.
  • the connection between the blades 310, which can be held on a blade ring (not shown), and the motor 32 or the fastening means 33 can be realized via webs or a disk (not shown).
  • the motor 32 can additionally be connected to the upper side of the fan housing 30 or the lower side of the heating modules 41 via fastening means 22.
  • the fan housing 30 has at least one base 301 and a radial housing wall 302, which can also be referred to as a side wall or an outer wall.
  • the fan housing 30 can have an air outlet duct 307 (see FIG. 2), at the end of which an air outlet opening 305 is provided.
  • the fan housing 30 preferably has a cover 306, which at least covers the receiving space 300 at the top. The cover 306 lies against the underside of the heating modules 41 and can be connected to it.
  • the fan wheel 31 has a diameter that is smaller than the diameter of the fan housing 30 and in particular the receiving space 300 of the fan housing 30.
  • the blades 310 of the fan wheel 31 are thus spaced apart from the radial housing wall 302.
  • the extractor device 2 of the combination device 1 can therefore also be referred to as a filterless extractor device 2. However, this does not exclude that downstream of the air outlet opening 305 or in the flow direction
  • Odor filter (not shown) is provided.
  • the fan wheel 31 is driven by the motor 32. This creates a suction, through which air is sucked into the extractor device 2 via the air inlet opening 20. The air thereby passes through the air duct 21 and reaches the fan housing 30 via the air inlet opening 303. There, the air is directed radially outwards by the rotation of the fan wheel 31 and the blades 310 provided thereon. The air is directed radially outward through the distances between the blades 310 and accelerated against the radial housing wall 302.
  • These contaminants are usually liquid contaminants, such as fat or other liquids.
  • Contaminants therefore run downward on the radial housing wall 302 and collect on the floor 301. In the case of contaminants with low viscosity, the contaminants can also accumulate on the radial housing wall 302 and adhere there.
  • At least part of the fan housing 30, in particular the base 301 and the radial housing wall 302 can be removed together with the fan wheel 31.
  • the motor 32 can also be removed. In this embodiment, too, are part of the
  • Fan housing 30 the fan wheel 31 and the motor 32 designed together removable.
  • the part of the fan housing 30 which is detachable preferably the part which is the bottom 301 and the radial
  • Housing wall 302 includes. However, it is also possible that the whole
  • Fan housing 30, that is, the base 301, the radial housing wall 302 and the cover 306 of the fan housing 30 are removable. In this case it is
  • Air inlet opening 303 is preferably dimensioned such that the motor 32 can be guided through the air inlet opening 303 into the interior of the fan housing 30.
  • the fan wheel 31 can be rotatably mounted, for example, in a guide on the bottom 301 of the fan housing 30.
  • the detachable connection to the extractor device 2 can be made by the fastening means 33, via which the fan wheel 31 and the fan housing 30 are fastened to the motor 32.
  • the fan housing 30 or the part of the fan housing 30 that is detachable can be fastened to the underside of the heating modules 41 of the hob 4 via fastening means 22.
  • the fan housing 30 can have a cover 306 and this has a unit with the base 301 and the radial housing wall 302 form.
  • the entire fan housing 30, the fan wheel 31 accommodated therein and the motor 32 are then removed from the extractor device 2.
  • the removable unit can be detachably fastened to the underside of the cooktop 4 via fastening means 22.
  • the user of the combination device 1 can thus at least part of the
  • FIG. 2 shows an embodiment of the combination device 1 according to the invention in a perspective partial sectional view.
  • the embodiment according to FIG. 2 essentially corresponds to the embodiment according to FIG. 1. In the sectional view according to FIG. 2, only part of the fan wheel 31, in particular the blades 310, is visible. The struts or disk via which the blades 310 are connected to the motor 32 and the motor 32 are not shown in FIG. 2.
  • the fan housing 30 has a receiving space 300.
  • This receiving space 300 in which the fan wheel 31 is received, has a spiral cross section.
  • the receiving space 300 is widened and merges into an air outlet duct 307, the end of which represents the air outlet opening 305 of the fan housing 30.
  • FIG. 2a shows a schematic top view of such a fan housing 30.
  • the fan housing 30 has a cover 306.
  • a protruding wall is shown schematically, which can serve as a fastening means 22 of the fan housing 30 on the hob 4.
  • the cutout 42 in the cooktop 4 represents a rectangular cutout which extends in the center of the cooktop 4 in the depth direction of the cooktop 4.
  • the connection between the cooktop 4 and the fan housing 30 lies on the underside of the cover plate 40 of the cooktop 4 at the cutout 42.
  • an air duct 21 is introduced into the cutout 42.
  • the air duct 21 is shown in a raised state in FIG. 2 for better visibility. In the inserted state, the underside of the air duct 21 lies on the cover 306 of the fan housing 30.
  • the air inlet opening 303 of the fan housing 30 is introduced in the cover 306 and thus in the top of the fan housing 30.
  • a protective grille 304 in the air inlet opening 303, which serves as protection against intrusion,
  • the air inlet opening 303 is aligned with the air inlet opening 20, which is formed by the upper edge of the air guide duct 21. 3 shows the fan 3 in the area of the air inlet opening 303 in more detail. As can be seen from this figure, in the embodiment shown the diameter of the fan wheel 31 is larger than the diameter of the air inlet opening 303
  • the axis of rotation of the fan wheel 31 lies in the vertical and is in the middle of the
  • Air inlet opening 303 arranged.
  • the motor 32 via which the fan wheel 31 is driven, lies in the axis of rotation of the fan wheel 31.
  • the blades 310 of the fan wheel which lie on the outer circumference of the fan wheel 31 in the vertical direction and thus parallel to the axis of rotation of the fan wheel 31, extend from the outer circumference of the fan wheel 31 curved inward in the radial direction.
  • the extent of the blades 310 in the radial direction is dimensioned such that the inner ends of the blades 301 lie on the outer circumference of the air inlet opening 303.
  • the present invention thus relates to a combination between a hob, which can be an electric, induction or gas hob, and an integrated one
  • Extractor hood device which can also be referred to as table ventilation.
  • the device is compact. Still are in that
  • Combination device integrates many functions, such as in particular the fan, a grease separator and possibly an odor filter in a small space.
  • the width and depth of the combination device is usually given by the furniture industry.
  • the height of the combination device is crucial because it engages in the space of the kitchen furniture, in which, for example, drawers are provided.
  • the invention is based on the knowledge that this object can be achieved by the fume extraction device being a filterless device.
  • the fume extraction device being a filterless device.
  • an at least partially removable centrifugal separating device is used in the invention.
  • the fan which can also be referred to as a fan, at least partially serves as
  • the fan has three main parts.
  • the fan preferably comprises an electric motor that drives the fan wheel, a fan wheel, by the rotation of which air is sucked into the extractor hood device, and a fan housing, which can be a spiral housing and which guides the air.
  • the principle used according to the invention is the principle of a centrifugal separator.
  • the vapors and vapors which can also be referred to as fat / water vapors, are sucked into the fan and thrown onto the fan housing by the centrifugal forces, and the impurities collect there.
  • the fan can be at least partially removed from below and cleaned in the dishwasher.
  • two interfaces are possible:
  • the motor, the fan wheel and the fan housing are a unit that can be removed and is dishwasher-compatible.
  • the motor is dishwasher-safe.
  • the fan wheel and the fan housing are one unit.
  • the engine is not removable.
  • the fan wheel is preferably detachably coupled to the motor.
  • the motor need not be tight in this embodiment.
  • an upwardly removable air duct which can also be referred to as a chimney, can be provided, which can also be cleaned and is introduced into a recess in the hob.
  • An odor filter is preferably provided such that it is arranged with respect to the fan wheel in such a way that contaminants which are accelerated by the fan wheel do not reach the odor filter directly.
  • the odor filter can be provided at an air outlet opening of the fan housing or at the end of an air duct which connects to the air outlet opening of the fan housing.
  • the present invention has a number of advantages. In particular, all parts are preferably cleanable. In the present invention, there is no saturation as occurs with conventional fat filters.
  • the extractor device is particularly suitable for low-viscosity impurities that occur, for example, in Asian cooking.
  • the combination device can be made with a low height of 12cm or 16cm, for example, and thus easily in one
  • Kitchen furniture such as a kitchen base cabinet, can be integrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

La présente invention concerne un dispositif d'évacuation des émanations pour une plaque de cuisson (4), qui comprend une ouverture d'entrée d'air (20) par laquelle l'air est aspiré vers le bas, et un ventilateur (3) pourvu d'une roue de ventilateur (31), d'un moteur (32) et d'un boîtier de ventilateur (30), dans le côté supérieur duquel se trouve une ouverture d'entrée d'air (303). Le dispositif d'évacuation des émanations est caractérisé en ce que des moyens de séparation des impuretés dans le dispositif d'évacuation des émanations (2) sont uniquement présents dans le sens de l'écoulement après l'ouverture d'entrée d'air (303) du boîtier de ventilateur (30). L'invention concerne en outre un appareil combiné (1) comprenant une plaque de cuisson (4) et au moins un tel dispositif d'évacuation des émanations (2).
EP20701193.3A 2019-01-24 2020-01-23 Dispositif d'évacuation des émanations pour plaque de cuisson et appareil combiné Pending EP3914864A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19290005 2019-01-24
PCT/EP2020/051663 WO2020152288A1 (fr) 2019-01-24 2020-01-23 Dispositif d'évacuation des émanations pour plaque de cuisson et appareil combiné

Publications (1)

Publication Number Publication Date
EP3914864A1 true EP3914864A1 (fr) 2021-12-01

Family

ID=65276110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20701193.3A Pending EP3914864A1 (fr) 2019-01-24 2020-01-23 Dispositif d'évacuation des émanations pour plaque de cuisson et appareil combiné

Country Status (4)

Country Link
US (1) US20220026075A1 (fr)
EP (1) EP3914864A1 (fr)
CN (1) CN113302432A (fr)
WO (1) WO2020152288A1 (fr)

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EP3504483B1 (fr) * 2016-08-26 2022-01-19 BSH Hausgeräte GmbH Appareil combiné et appareil de cuisine comprenant cet appareil combiné
DE102017200201A1 (de) * 2017-01-09 2018-07-12 BSH Hausgeräte GmbH Dunstabzugsvorrichtung und Kombinationsgerät mit Dunstab-zugsvorrichtung

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