EP3940300A2 - Système de plaque de cuisson - Google Patents

Système de plaque de cuisson Download PDF

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Publication number
EP3940300A2
EP3940300A2 EP21186205.7A EP21186205A EP3940300A2 EP 3940300 A2 EP3940300 A2 EP 3940300A2 EP 21186205 A EP21186205 A EP 21186205A EP 3940300 A2 EP3940300 A2 EP 3940300A2
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EP
European Patent Office
Prior art keywords
fan
hob
attachment
cooking
designed
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
EP21186205.7A
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German (de)
English (en)
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EP3940300A3 (fr
Inventor
Wilhelm Bruckbauer
Mario Blersch
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3940300A2 publication Critical patent/EP3940300A2/fr
Publication of EP3940300A3 publication Critical patent/EP3940300A3/fr
Pending legal-status Critical Current

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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
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft

Definitions

  • German patent application DE 10 2020 200 864.7 is incorporated herein by reference.
  • the invention relates to an extractor device for extracting cooking vapors downwards. Furthermore, the invention relates to a hob system with such a vapor extraction device.
  • the fume extraction device comprises a fan unit and an intake duct, which extends upwards at least in sections into an area below the fan impeller for sucking in the cooking vapors into the fan unit.
  • a fan motor of the fan unit is suspended from an electronics housing. The disadvantage is that vibrations from the fan unit are transmitted to the electronics housing. This leads to an increased load on the electronics and to noise emissions.
  • a hob system with a fume extraction device and multiple hobs is also known from DE 20 2013 005 303 U1 .
  • a hob system with an extractor device for extracting cooking vapors downwards with at least one fan unit for sucking in the cooking vapors has an intake duct which, in particular for sucking the cooking vapors into the at least one fan unit in an upward direction, extends at least in sections in extends an area below the fan wheel and thus ensures a particularly safe operation of the vapor extraction device.
  • the hob system can be operated in a particularly robust and low-noise manner if a fan motor of the fan unit is fastened to a support structure arranged below a fan wheel of the fan unit.
  • the fan motor By fastening the fan motor to the support structure arranged below the fan wheel, the fan motor can be decoupled from components arranged above the fan motor, in particular from a hotplate housing, in particular a housing for the hob heating or control. Transmission of mechanically stressful vibrations from the fan motor to electronic components arranged above the fan motor can be reduced. A noise excitation by a vibrating housing, which is arranged above the fan motor and usually faces the user, can thus be avoided.
  • the design of the intake channel in such a way that the cooking vapors are sucked in upwards into the fan unit protects the fan motor reliably against overflow liquids, making the extractor device particularly robust in operation.
  • a hob system for use in a kitchen worktop can have at least one fume extraction device for extracting cooking fumes downwards, with at least one cooking fumes inflow opening for sucking in the cooking fumes in a downward direction, at least one fan unit for sucking in the cooking fumes, which has a fan wheel and a fan motor for driving the fan wheel in rotation, and an intake duct for fluid-conducting connection of the at least one cooking fume inflow opening with the at least one fan unit, which is arranged at least in sections below the fan wheel, and at least one hob, with a hob plate for carrying food to be cooked, and at least one hotplate for heating the food to be cooked arranged on the hob plate, and a fastening of the fan motor to a support structure arranged below the fan wheel.
  • the supporting structure can be arranged completely below the fan wheel. It can also overlap with the fan wheel in the vertical direction.
  • the fan motor and the fan wheel are attached to the support structure arranged below the fan wheel.
  • a transmission of vibrations, for which the rotation of the fan wheel is the cause, to components arranged above the fan motor can thus be avoided.
  • the fan motor in particular the at least one fan unit, is preferably attached exclusively to the support structure arranged below the fan wheel.
  • the fan motor can rest on the supporting structure from above.
  • the fan motor can be placed on the supporting structure.
  • the fan motor can be fastened to the supporting structure in a positive and/or non-positive manner, in particular by means of a bolt connection, in particular a screw connection or a rivet connection.
  • the attachment of the fan motor to the support structure is preferably designed in such a way that the weight of the fan motor predominantly, ie to a proportion of more than 50%, in particular completely, in the form of compressive forces on the supporting structure.
  • connection between the fan motor and the support structure is therefore particularly robust and can be produced economically.
  • the fan motor can be arranged at least partially, in particular completely, above the support structure.
  • the fan motor can also be arranged at least partially, in particular completely, below the supporting structure.
  • the support structure can extend beyond the fan motor, in particular when viewed from above. You can allow a load transfer in a piece of kitchen furniture, in particular a base cabinet, in a wall or in a kitchen worktop.
  • the intake duct is designed in such a way that at least part of the cooking vapors is sucked in in an upward direction into the fan unit.
  • the proportion of cooking vapors sucked in upwards is preferably at least 25%, in particular at least 50%, in particular at least 70%, in particular 100%.
  • the remaining portion of the cooking vapors sucked into the fan unit can be sucked into the fan unit in a downward direction, for example. Due to the at least partial suction of the cooking vapors upwards, a volume of the suction channel arranged below the fan unit is available for receiving overflow liquid.
  • the fan motor is thus particularly reliably protected against overflow liquids which penetrate into the intake duct via the at least one cooking vapor inflow opening contact with the live components of the fan motor can endanger the user and damage the extractor hood. Due to the at least partial suction of the cooking vapors upwards, the extractor device is particularly safe and robust in operation.
  • a vapor extraction device with at least one cooking vapor inflow opening and at least one fan unit, which includes a fan motor and a fan wheel that is reversibly detachably connected to the fan motor.
  • the vapor extraction device described above is preferably further developed with the features of this vapor extraction device and vice versa.
  • a detachable fan clutch can be provided between the fan wheel and the fan motor.
  • the details of the formation of the fan clutch is on the WO 2019/068421 A1 referenced, the content of which is hereby fully incorporated into the present description.
  • the fan wheel can preferably be removed from the vapor extraction device through an intake duct and the cooking vapor inflow opening.
  • the suction channel can be designed in such a way that the fan wheel has to be tilted about a horizontal axis for removal from the fume extraction device.
  • a part of a fan housing of the fan unit can preferably be removed from the vapor extraction device, in particular through the cooking vapor inflow opening.
  • the fan housing can be in the area of a housing inflow opening and/or a housing outflow opening have a protective grille and/or at least one air guiding element and/or a filter seat for a filter, in particular a grease filter.
  • the protective grille and/or the at least one air guiding element and/or the filter can preferably be removed from the fan housing, in particular for removing the fan wheel from the fan housing. The cleanability of the fume extraction device is thereby further improved.
  • the fan wheel can also be removed from the vapor extraction device through a reversibly closable removal opening of the intake duct and/or an overpressure duct.
  • the intake channel and/or the overpressure channel can have a removal cover for the reversible closure of the removal opening.
  • the removal opening can be designed downwards for removing the fan wheel.
  • the removal opening is preferably arranged on a bottom of the intake duct and/or the overpressure duct.
  • the removal opening is preferably also designed for removing a filter, in particular an odor filter, in particular an activated carbon filter, which is provided in particular in the overpressure channel.
  • the cooking vapor inflow opening is round in cross section, in particular elliptical, in particular circular, or polygonal, in particular rectangular.
  • An aspect ratio of the cross section is preferably at least 1.5, in particular at least 2, in particular at least 3.
  • the fan motor is through the cooking vapor inflow opening and/or the removal opening for the fan wheel and/or through a bottom of the intake duct and/or the overpressure duct reversibly removable from the vapor extraction device.
  • a corresponding removal of the fan motor is possible in a particularly simple manner by fastening the fan motor to the support structure arranged below the fan wheel. This makes it possible to economically remove the fan motor for maintenance purposes and/or to replace it with a replacement motor.
  • the attachment of the fan motor can be designed to be reversibly detachable for this purpose.
  • the intake channel extends at least in sections below the fan wheel.
  • the fan impeller preferably overlaps and/or covers the intake channel at least in sections in a plan view.
  • the at least one fan unit is preferably designed as a radial fan.
  • the at least one fan unit can also be designed as an axial fan and/or as a cross-flow fan.
  • the support structure is formed by the intake port and/or is connected in particular in one piece, in particular in a materially bonded manner, to the intake port. Because the support structure is formed by the intake port, the structure of the intake port can be used particularly efficiently. The extractor device can thus be implemented in a particularly space-saving manner and can be produced economically.
  • the support structure can also be designed as part of a housing of the hob system or connected to it.
  • the supporting structure is provided with decoupling means, in particular vibration dampening means to decouple from other areas of the housing.
  • the support structure can also be formed by a separate element that is separate from the cooktop system. It can be arranged, for example, on a kitchen cupboard, a wall or a kitchen worktop, in particular connected in a force-transmitting manner.
  • the supporting structure can be designed as a stiffening element or can comprise one or more stiffening elements, in particular profile strips.
  • a liquid barrier is arranged between the cooking vapor inflow opening and the fan motor, in particular upstream of the fan wheel.
  • the liquid barrier can be arranged in the suction channel. At least in sections, the liquid barrier delimits a liquid reservoir for receiving overflow liquid.
  • the liquid reservoir is preferably formed by a liquid pan that can be reversibly removed from the vapor extraction device.
  • the liquid tray can preferably be removed through the cooking vapor inflow opening and/or the removal opening for the fan wheel, which is arranged in particular on a bottom of the intake duct and/or the overpressure duct.
  • the liquid barrier prevents overflow liquid penetrating through the cooking vapor inflow opening into the vapor extraction device from advancing in the direction of the fan unit, in particular the fan motor.
  • the liquid reservoir preferably has a capacity of at least 100 ml, in particular at least 250 ml, in particular at least 500 ml.
  • the liquid barrier completely encloses a fan axis of the fan wheel in the circumferential direction, ie by 360°.
  • the liquid barrier can enclose a drive shaft in the circumferential direction, which connects the fan wheel to the fan motor in a torque-transmitting manner. This advantageously ensures that the fan motor is reliably protected against overflow liquids even when the cooking vapors flow around the axis of rotation.
  • a height h of the liquid reservoir in particular a vertical distance of the overflow collar from an underside of the intake channel, is at least 5 mm, in particular at least 10 mm, in particular at least 20 mm, in particular at least 40 mm.
  • the fume extraction device comprises at least one sensor for detecting a liquid level in the liquid reservoir.
  • the sensor can be designed as a capacitive sensor and/or as a conductivity sensor and/or as an optical sensor.
  • the sensor is preferably in signal communication with a control device.
  • the control device is preferably designed to provide a signal when the liquid in the liquid reservoir reaches a limit level, which causes the vapor extraction device, in particular the fan motor, to be switched off and/or the output of an acoustic and/or visual warning signal.
  • the liquid barrier has at least 1, in particular at least 2, flow guide elements.
  • the flow guide element can be designed as a guide plate and/or as a guide profile.
  • a main extension plane of the at least one flow guide element is preferably oriented parallel to the axis of rotation.
  • the flow guide element can be designed as a flow divider for flow-efficiently dividing the flow of cooking vapors, in particular for flow around the fan axis and/or the drive shaft on both sides. A lossy vortex formation when flowing around the liquid barrier can thus be avoided.
  • the supporting structure comprises at least one flow guide element according to the above description.
  • the liquid barrier is designed to be concavely curved, at least in regions, for the purpose of reducing the resistance of the flow.
  • the impeller overlaps the liquid barrier in a plan view.
  • the concave curvature of the liquid barrier can be designed to deflect the flow of cooking vapors upwards in the direction of the fan wheel. The deflection of the flow of cooking vapors in the direction of the fan wheel can thus take place in a particularly flow-efficient manner.
  • the liquid barrier is part of the support structure, with the fan motor being attached to the liquid barrier.
  • the structure of the liquid barrier can thus be used in addition to the mechanical attachment of the fan motor.
  • the extractor device can thus be implemented in a particularly space-saving and economical manner.
  • the intake duct projects downwards beyond the fan wheel by at least 20 mm, in particular at least 30 mm, in particular at least 40 mm, in particular at least 60 mm.
  • a particularly large flow cross section can be provided for sucking in the cooking vapors, as a result of which the suction is particularly flow-efficient.
  • the capacity of a liquid reservoir can be dimensioned sufficiently large.
  • the fan motor projects downwards beyond the intake channel by at least 20 mm, in particular at least 30 mm, in particular at least 40 mm, in particular at least 60 mm.
  • the intake duct can project downwards beyond the fan motor by at least 20 mm, in particular at least 30 mm, in particular at least 40 mm, in particular at least 60 mm. This improves protection against overflow liquids.
  • the fan axis of the fan wheel is oriented vertically.
  • the vertical orientation of the fan axis, in combination with the suction in the vertical direction upwards, ensures particularly reliable protection of the fan motor against overflow liquids.
  • the fume extraction device can hereby be designed in a particularly space-saving manner.
  • a vertical extension of the vapor extraction device between the cooking vapor inflow opening and the underside of the intake channel is preferably a maximum of 250 mm, in particular a maximum of 200 mm, in particular a maximum of 150 mm, in particular a maximum of 100 mm.
  • a fan axis of the fan wheel and/or the fan wheel and/or the fan motor are arranged at a distance from the cooking vapor inflow opening and/or a geometric centroid of a hotplate in a plan view.
  • the cooking vapor inflow opening is preferably designed as a recess in the hotplate.
  • the hotplate preferably partially, in particular incompletely or completely, overlaps the fan motor and/or the fan wheel.
  • a horizontal distance between the geometric centroid of the hotplate and the fan axis and/or the fan wheel and/or the fan motor is preferably at least 5 mm, in particular at least 10 mm, in particular at least 20 mm, in particular at least 40 mm.
  • a horizontal distance between the cooking vapor inflow opening and the fan axis and/or the fan wheel and/or the fan motor is preferably at least 5 mm, in particular at least 10 mm, in particular at least 20 mm, in particular at least 40 mm.
  • a further object of the invention is to provide an improved vapor extraction device which solves the problem of transmission of vibrations and emission of noise in an alternative way.
  • an extractor device for extracting cooking vapors downwards for a hob system for use in a kitchen worktop, having at least one cooking vapor inflow opening, at least one fan unit for sucking in the cooking vapors, with a fan wheel and a fan motor for driving the fan wheel in rotation, and a fan attachment for attaching the at least one fan unit to a hob plate and/or to kitchen furniture.
  • an extractor device with a fan unit and a fan attachment which is designed to attach the fan unit to a hob plate and/or to kitchen furniture, prevents the propagation of vibrations emanating from the fan unit in an area of sensitive components, in particular of electronic components and/or the emission of noise.
  • the fan attachment can be designed to attach the fan unit to a kitchen worktop and/or a kitchen base cabinet of the kitchen furniture.
  • the kitchen base cabinet is also referred to as a body.
  • the fan attachment is preferably designed to attach the fan unit directly to the hob plate and/or directly to the kitchen worktop and/or to the kitchen base cabinet, in particular at least one horizontal and/or vertical wall of the kitchen base cabinet. This means that the attachment does not take place via a housing of the vapor extraction device and/or a hob, and that the fan attachment is not part of a corresponding housing.
  • the fan attachment can be a component that is independent of other components of the vapor extraction device and/or a hob, in particular of any housing.
  • the fan unit does not have to be attached to structures that carry sensitive components, in particular electronic components.
  • the hob plate and/or the kitchen furniture are usually designed to be very stiff, which means that they do not tend to vibrate and therefore not to emit noise.
  • the extractor device is therefore special robust and low-noise in operation.
  • the fume extraction device is preferably further developed with at least one of the features of the fume extraction device described above.
  • the fan mount includes at least one damping element for vibration damping.
  • the damping element is preferably arranged between the fan unit and the hob plate and/or the kitchen furniture.
  • the damping element can have a rubber-elastic material.
  • the fan attachment can be flexible in shape. The separate design of the fan attachment from other components of the cooktop system, in particular the extractor device, allows a simple and economical integration of a corresponding damping element in the fan attachment.
  • the fan attachment can be designed in one piece or in multiple pieces.
  • the fan attachment preferably comprises at least one fan connection means for attachment to the fan unit and at least one panel connection means for connection to the hob panel and/or the kitchen furniture.
  • the fan connection means and the plate connection means can preferably be reversibly connected to one another. This simplifies the assembly of the extractor device.
  • the fan attachment is designed to rest on the kitchen worktop from above and/or to be connected to the kitchen worktop from below.
  • the fan attachment in particular the panel connection means
  • the bonding can dampen vibrations be formed and for this purpose comprise a rubber-elastic material.
  • the fan attachment, in particular the plate connection means can rest on the kitchen worktop from above without further attachment or can also be glued or screwed to it.
  • a layer of rubber-elastic material can be provided between the kitchen worktop and the fan attachment for vibration damping and/or for better load distribution.
  • the fan unit can thus be fastened in a particularly robust manner and avoiding the transmission of vibrations to other components of the vapor extraction device or the hob system.
  • the hob plate rests on the fan attachment from above, in particular on the plate connection means.
  • the hob plate and the fan attachment are preferably designed in such a way that a surface of the hob plate can be fastened flush with a surface of the kitchen worktop.
  • the fan attachment preferably includes a positioning means for compensating for dimensional tolerances when attaching the fan unit to the kitchen furniture and/or the hob plate.
  • the positioning means can be designed in the form of at least one elongated hole and/or at least one guide slot.
  • Another object of the invention is to provide an improved cooktop system.
  • the design of the hob system with an extractor device makes it particularly robust and quiet in operation.
  • the extractor device can be equipped with one or several features of the fume extraction devices are developed according to the above description.
  • the hob system preferably comprises at least 1, in particular at least 2, in particular at least 3, in particular at least 4 hotplates for heating food to be cooked.
  • the hob plate is preferably designed in one piece, in particular in one piece, and in a top view preferably extends over at least one, in particular at least two, in particular all of the hotplates.
  • the cooking vapor inflow opening is preferably arranged in a central region of the hob plate, in particular overlapping a geometric centroid of the hob plate in a plan view. The cooking vapor inflow opening preferably penetrates the hob plate.
  • the extractor device has at least 1, in particular at least 2, in particular at least 3, cooking vapor inflow openings, which preferably penetrate the hob plate.
  • the fan motor is arranged at a distance from the geometric centroid of the hob plate in a plan view.
  • This has the advantage that the hob shields the fan motor from overflow liquids.
  • the fan motor is thus particularly reliably protected against overflow liquids.
  • a distance between the axis of rotation of the fan motor and the geometric centroid is preferably at least 40 mm, in particular at least 60 mm, in particular at least 80 mm, in particular at least 100 mm.
  • the hob system is designed as an assembly unit. This means that the at least one vapor extraction device and the at least one hob are connected to one another in one piece when delivered.
  • the hob system designed as an assembly unit can thus be installed as a unit, for example used in a kitchen worktop.
  • a first embodiment of a hob system 1 with a hob 2 and an extractor device 3 for extracting cooking vapors downwards is described.
  • a common control device 4 is provided for controlling the hob 2 and the extractor device 3 .
  • the hob system 1 is installed in a corresponding recess of a kitchen worktop 6 by means of an installation frame 5 .
  • the kitchen worktop 6 is placed on a kitchen base cabinet 7 .
  • the kitchen worktop 6 and the kitchen base cabinet 7 are part of a piece of kitchen furniture.
  • the control device 4 includes a user interface 8.
  • the user interface 8 is designed in the form of a touch-sensitive screen.
  • the hob 2 includes a hob plate 9.
  • the hob plate 9 is designed as a glass-ceramic plate.
  • the user interface 8 is arranged on the hob plate 9 .
  • the hob 2 has four hotplates, which are designed as induction hotplates 10 .
  • the fume extraction device 3 comprises a cooking vapor inflow opening 11, a fan unit 12 for extracting the cooking vapors through the cooking vapor inflow opening 11 and an intake duct 13, which is connected to the fan unit 12 in a fluid-conducting manner, for guiding the cooking vapors.
  • the vapor extraction device 3 includes a combination filter 15.
  • the combination filter 15 is designed to filter fats and odors from the cooking vapors.
  • the combination filter 15 includes a grease filter and an odor filter for this purpose.
  • the intake duct 13 extends between the inflow grille 14 and the fan unit 12 and is also referred to as a vacuum duct.
  • the combination filter 15 is arranged in the intake passage 13 .
  • An Indian 2 shown flow path 16 illustrates the air flow.
  • the fan unit 12 is followed downstream by an overpressure duct (not shown) for passing on the cooking fumes.
  • An odor filter in particular an activated carbon filter, is preferably arranged in the overpressure channel.
  • the overpressure duct can be designed to operate the vapor extraction device 3 in air recirculation mode to return the cooking vapors to the environment and/or to operate the vapor extraction device 3 in exhaust air mode to direct the cooking vapors, in particular through an outer wall of the building, into the environment.
  • the hob system 1 is designed as an assembly unit.
  • the hob 2 and the fume extraction device 3 are connected to one another, in particular when delivered, to form a combination device.
  • the cooking vapor inflow opening 11 overlaps a geometric centroid 17 of the hob plate 9 in a plan view.
  • the cooking vapor inflow opening 11 is circular in plan view.
  • the cooking vapor inflow opening 11 is arranged centrally on the hob plate 9 , in particular concentrically to the geometric centroid 17 .
  • the fan unit 12 includes a fan wheel 18 and a fan motor 19 for driving the fan wheel 18 in rotation.
  • a distance a GM between the geometric centroid 17 and the fan motor 19 is 120 mm.
  • the fan wheel 18 is arranged at a distance from the geometric centroid 17 of the hob plate and at a distance from the cooking vapor inflow opening 11 .
  • a distance a GR between the geometric centroid 17 and the fan wheel 18 is 80 mm.
  • the distance a ER between the cooking vapor inflow opening 11 and the fan wheel 18 is 40 mm.
  • a fan axis 20 of the fan wheel 18 is oriented vertically.
  • the fan axis 20 is arranged concentrically to the axis of rotation of the fan motor 19 .
  • the fan axis 20 is arranged at a distance a GA of 160 mm from the geometric centroid 17 of the hob plate 9 .
  • the fan motor 19 is connected in a torque-transmitting manner to the fan wheel 18 via a drive shaft 21 .
  • the drive shaft 21 is arranged concentrically to the fan axis 20 .
  • a liquid barrier 22 is arranged to protect the fan motor 19 against overflow liquid is upstream of the fan motor 19, in particular between the cooking vapor inflow opening 11 and the fan motor 19, a liquid barrier 22 is arranged.
  • the liquid barrier 22 completely surrounds the drive shaft 21 in the circumferential direction.
  • the liquid barrier 22 is formed in one piece with the intake passage 13 . In order to protect the fan motor 19 against overflow liquids, the liquid barrier 22 protrudes upwards from an underside 23 of the intake channel 13 .
  • a height h of the liquid barrier 22, in particular of an overflow collar 24, compared to the underside 23 of the intake channel 13 is 40 mm. This reliably prevents the drive shaft 21 or the fan motor 19 from coming into contact with overflow liquid that has penetrated into the intake channel 13 .
  • the intake channel 13 is designed in such a way that the cooking vapors that are sucked in are guided in an upward direction to the fan wheel 18 .
  • the intake channel 13 is thus designed in such a way that the fan wheel 18 sucks in the cooking vapors in a vertical upward direction.
  • the intake duct 13 extends at least in sections into an area below the fan wheel 18.
  • the fan wheel 18 overlaps the intake duct 13 in a plan view. This advantageously ensures that the fan wheel 18 also does not come into contact with overflow liquid.
  • the fan motor 19 is attached to a support structure 25 which is arranged below the fan wheel 18 .
  • the support structure 25 is formed by the intake port 13 .
  • the intake channel 13 has a surface reinforcement (not shown), in particular reinforcement ribs.
  • the stiffening ribs can be formed in one piece with the intake port 13 .
  • the stiffening ribs are preferably arranged on an outside of the intake channel 13 that is not wetted by the flow of cooking vapors.
  • the intake duct 13 is preferably, in particular in a single Process step, in a primary shaping process, for example in an injection molding process, produced.
  • the liquid barrier 22 is designed with a concave curvature to guide the flow with reduced resistance.
  • the liquid barrier 22 is formed in the shape of an arc, in particular in the shape of a circular arc.
  • the liquid barrier 22 has a flow guide element 26 .
  • the flow guide element 26 is designed to split the flow of cooking vapors with reduced resistance.
  • the flow guide element 26 thus ensures a particularly low-loss flow around the liquid barrier 22.
  • the flow guide element 26 is funnel-shaped and in a top view, not shown, the flow guide element 26 is elliptical, in particular with an aspect ratio of at least 5. Due to the fact that the fan motor 19 is fastened to the support structure 25 exclusively below the fan wheel 18, a disruptive influence of magnetic fields induced by the fan motor 19 on electronics arranged above the fan wheel 18 can be avoided. In particular, vibrations transmitted to an electronics housing 27 can be reduced. The attachment of the fan motor 19 to the supporting structure 25 at a distance from the electronics ensures that corresponding vibrations are dampened.
  • the electronics can be heating and/or control electronics for the hobs 2 .
  • the heating electronics are designed to operate induction cooktops 10 .
  • the control electronics are part of the control device 4.
  • the functionality of the hob system 1, the hob 2 and the extractor device 3 is as follows:
  • the control device 4 is in energy-transmitting connection with the hob 2 and the extractor device 3 .
  • One or more of the induction hotplates 10 can be activated by means of a user input via the user interface 8 . Items to be cooked 29 arranged on the respective induction hotplates 10 are heated and cooking vapors are produced.
  • the fume extraction device 3 is activated by the control device 4 , electrical power being provided to the fan motor 19 .
  • the fan motor 19 causes the fan wheel 18 to rotate about the fan axis 20 .
  • the cooking vapors are drawn in from an area above the cooking item 29 along the flow path 16 through the cooking vapor inflow opening 11 into the intake channel 13 . Fats and odors are filtered out of the cooking vapors in the combination filter 15 .
  • the cooking vapors are guided along the intake channel 13 and sucked in the vertical direction upwards to the fan wheel 18 , in particular into a fan housing 30 of the fan unit 12 .
  • Cooking vapors flow around the liquid barrier 22 in a horizontal plane on both sides of the fan axis 20. Because the liquid barrier 22 has the flow guide element 26, this flow around can take place with particularly low resistance.
  • the concave design of the liquid barrier 22 also promotes the flow-efficient suction of the cooking vapors upwards in the direction of the fan wheel 18 .
  • the fan wheel 18 and the fan motor 19 are arranged at a distance from the geometric centroid 17 of the hob plate 9 and at a distance from the cooking vapor inflow opening 11, these shielded from the overflow liquid entering through the cooking vapor inflow opening 11 .
  • the suction of the cooking vapors in an upward direction protects in particular the fan wheel 18 from coming into contact with overflow liquid.
  • the advance of the overflow liquid to the fan motor 19 and to the drive shaft 21 is prevented by the liquid barrier 22 .
  • the hob system 1, in particular the extractor device 3, is therefore particularly robust and can be operated safely.
  • the extractor device 3 comprises a fan attachment 31 for attaching the fan unit 12 to the hob plate 9.
  • the intake duct 13 is designed in such a way for the fluid-conducting connection of the cooking vapor inflow opening 11 to the fan unit 12 is that the cooking fumes are sucked into the fan unit 12 in a downward direction.
  • the fan attachment 31 is in the form of an angle, in particular an angled sheet metal, in particular a metal sheet.
  • the fan attachment 31 is glued to the hob plate 9 .
  • the hob plate 9 is designed as a glass-ceramic plate.
  • the vapor extraction device has a liquid barrier 22 which is formed by the intake channel 13 and is arranged upstream of the fan unit 12 .
  • the fan unit 12 is attached to the hob plate 9 by means of the fan attachment 31, the transmission of vibrations, which occur during the operation of the fan motor 19 and the fan wheel 18, to the electronics for controlling and/or heating the hob can be reduced will.
  • the hob plate 9 which is usually designed to be particularly dimensionally stable, the excitation of vibrations on the hob system 1, in particular on the electronics housing 27, can be avoided.
  • the hob system 1 is therefore particularly quiet and robust during operation.
  • the fan attachment 31 preferably has at least one vibration damping element.
  • the vibration damping element can, for example, comprise a rubber-elastic material.
  • the functioning of the in the 4 Hob system 1 shown corresponds to the functioning of the hob system 1 according to the exemplary embodiment described above.
  • the intake duct 13 extending between the cooking vapor inflow opening 11 and the fan unit 12 is designed in such a way that the cooking vapors flow into the fan unit 12 both in the upward and in the downward direction.
  • the intake duct 13 has two intake duct sections 32, 33 overlapping the fan wheel 18 in a plan view, the first intake duct section 32 being arranged above the fan wheel 18 and the second intake duct section 33 being arranged below the fan wheel 18. The feeding of the cooking vapors to the fan wheel 18 can thus take place in a particularly flow-efficient manner.
  • the fan motor 19 is attached to a liquid barrier 22 which is fixed to the support structure 25 .
  • the fan motor 19 is on the liquid barrier 22 is placed and attached to the support structure 25 by means of this.
  • the support structure 25 is designed in the form of the intake port 13 .
  • the intake duct 13 is attached to an underside 34 of the kitchen worktop 6 by means of the fan attachment 31 .
  • the fan unit 12 in particular the fan wheel 18 and the fan motor 19 , is thus attached to the underside 34 by means of the fan attachment 31 . This enables the fan unit 12 to be attached in a particularly robust, rigid and low-vibration manner during operation.
  • the fan wheel 18 is detachably connected to the fan motor 19 .
  • a reversibly detachable fan clutch 35 is provided between the fan wheel 18 and the fan motor 19 for this purpose.
  • the functioning of the hob system 1 according to the in figure 5 illustrated embodiment corresponds to the functioning of the hob system 1 according to the embodiments described above.
  • a hob system 1 of a fan attachment 31 is described.
  • the fan attachment 31 is designed to rest on the kitchen worktop 6 from above. Because the fan attachment 31 is designed to rest on the kitchen worktop 6 from above, the hob system 1 can be easily inserted from above into a corresponding recess in the kitchen worktop 6 .
  • the hob plate 9 rests on the fan attachment 31 from above.
  • the fan attachment 31 is preferably connected to the hob plate 9, in particular glued to it.
  • the assembly of the hob system 1 on the kitchen worktop 6 is particularly simple due to the connection of the fan attachment 31 to the hob plate 9 .
  • the functioning of the hob system 1 according to the in 6 illustrated embodiment corresponds to the functioning of the hob system 1 according to the embodiments described above.
  • the fan motor 19 is attached to a support structure 25 arranged below the fan wheel 18, an attachment that is particularly robust, low-vibration and low-noise during operation can be ensured.
  • the design of the intake channel 13 in such a way that the cooking vapors are sucked into the fan unit 12 in an upward direction protects the fan unit 12, in particular the fan motor 19, from overflow liquids in a particularly reliable manner. Fastening the fan unit 12 to the hob plate 9 or the kitchen worktop 6 by means of the fan attachment 31 enables the fan unit 12 to be mounted in a rigid, robust and low-vibration manner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Treating Waste Gases (AREA)
  • Cookers (AREA)
EP21186205.7A 2020-01-24 2021-01-22 Système de plaque de cuisson Pending EP3940300A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020200864.7A DE102020200864A1 (de) 2020-01-24 2020-01-24 Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten
EP21152912.8A EP3855077B8 (fr) 2020-01-24 2021-01-22 Système de table de cuisson

Related Parent Applications (2)

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EP21152912.8A Division-Into EP3855077B8 (fr) 2020-01-24 2021-01-22 Système de table de cuisson
EP21152912.8A Division EP3855077B8 (fr) 2020-01-24 2021-01-22 Système de table de cuisson

Publications (2)

Publication Number Publication Date
EP3940300A2 true EP3940300A2 (fr) 2022-01-19
EP3940300A3 EP3940300A3 (fr) 2022-03-02

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EP21152912.8A Active EP3855077B8 (fr) 2020-01-24 2021-01-22 Système de table de cuisson
EP21186205.7A Pending EP3940300A3 (fr) 2020-01-24 2021-01-22 Système de plaque de cuisson
EP24171591.1A Pending EP4382813A2 (fr) 2020-01-24 2021-01-22 Système de table de cuisson

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EP24171591.1A Pending EP4382813A2 (fr) 2020-01-24 2021-01-22 Système de table de cuisson

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Cited By (1)

* Cited by examiner, † Cited by third party
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WO2024033452A1 (fr) * 2022-08-10 2024-02-15 3Defacto Gmbh Dispositif de hotte de captage de fumées, hotte de table de cuisson et procédé de fonctionnement d'un dispositif de hotte de captage de fumées

Families Citing this family (10)

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DE102020200864A1 (de) 2020-01-24 2021-07-29 Wilhelm Bruckbauer Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten
EP4246046A1 (fr) * 2022-03-15 2023-09-20 Electrolux Appliances Aktiebolag Appareil de combinaison et procédé d'assemblage d'un appareil de combinaison
DE102022115066A1 (de) 2022-06-15 2023-12-21 Berbel Ablufttechnik Gmbh Dunstabzug und Kombinationsgerät
DE102022206087A1 (de) 2022-06-17 2023-12-28 BORA - Vertriebs GmbH & Co KG Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten und Kochfeldsystem
DE102022115304A1 (de) 2022-06-20 2023-12-21 Berbel Ablufttechnik Gmbh Lüfter, Dunstabzug, und Kombinationsgerät
BE1030804B1 (de) * 2022-08-23 2024-03-25 Miele & Cie In ein Kochfeld baulich integrierbare Dunstabzugsvorrichtung und Kochfeld
BE1030806B1 (de) * 2022-08-23 2024-03-25 Miele & Cie In ein Kochfeld baulich integrierbare Dunstabzugsvorrichtung und Kochfeld
BE1030803B1 (de) * 2022-08-23 2024-03-25 Miele & Cie In ein Kochfeld baulich integrierbare Dunstabzugsvorrichtung und Kochfeld
BE1030832B1 (de) * 2022-08-31 2024-03-25 Miele & Cie Abzugsvorrichtung für ein Kochfeld und Kochfeld
WO2024055411A1 (fr) * 2022-09-13 2024-03-21 广东合捷电器股份有限公司 Mécanisme d'extraction de fumées et cuisinière intégrée de réchaud à induction

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DE202013005303U1 (de) 2013-06-12 2013-06-24 Wilhelm Bruckbauer Kochfeld
WO2019068421A1 (fr) 2017-10-06 2019-04-11 Bruckbauer, Wilhelm Dispositif hotte aspirante
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DE202019106084U1 (de) * 2018-11-07 2019-11-15 Elica S.P.A Kochfläche mit Downdraft-Dunstabzugshaube

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DE202013005303U1 (de) 2013-06-12 2013-06-24 Wilhelm Bruckbauer Kochfeld
WO2019068421A1 (fr) 2017-10-06 2019-04-11 Bruckbauer, Wilhelm Dispositif hotte aspirante
DE102020200864A1 (de) 2020-01-24 2021-07-29 Wilhelm Bruckbauer Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten

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Also Published As

Publication number Publication date
EP3855077B1 (fr) 2024-04-24
EP3855077B8 (fr) 2024-06-05
DE102020200864A1 (de) 2021-07-29
EP4382813A2 (fr) 2024-06-12
EP3855077A3 (fr) 2021-10-13
EP3855077A2 (fr) 2021-07-28
EP3940300A3 (fr) 2022-03-02

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