US20220275949A1 - Table ventilation device - Google Patents

Table ventilation device Download PDF

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Publication number
US20220275949A1
US20220275949A1 US17/632,514 US202017632514A US2022275949A1 US 20220275949 A1 US20220275949 A1 US 20220275949A1 US 202017632514 A US202017632514 A US 202017632514A US 2022275949 A1 US2022275949 A1 US 2022275949A1
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United States
Prior art keywords
filter module
vapor
ventilation device
deflection device
extension means
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Pending
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US17/632,514
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English (en)
Inventor
Ralf Wadlinger
Carsten Schweinebart
Nicolas Riedinger
Ulmar Neumann
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Assigned to BSH HAUSGERAETE GMBH reassignment BSH HAUSGERAETE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Riedinger, Nicolas, Schweinebart, Carsten, NEUMANN, ULMAR, WADLINGER, RALF
Publication of US20220275949A1 publication Critical patent/US20220275949A1/en
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
    • 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

Definitions

  • the invention relates to a table ventilation device which comprises a vapor extraction opening, a vapor deflection device, a fan, a filter module, an extension means and a drive unit for the motorized retraction and extension of the extension means.
  • each table ventilation device The target function underlying each table ventilation device is to extract vapor from the cooking region above a hob, to filter the vapor and to discharge the cleaned air into the environment.
  • a table ventilation device the air is extracted downwardly via a vapor extraction opening which may be provided, for example, in a recess of a worktop.
  • Table ventilation devices generally have filters, in particular grease filters, which have to be replaced at specific maintenance intervals.
  • grease filters are generally the first filter stage on or in the vapor extraction opening.
  • Odor filters may be arranged as the last filter stage upstream of an air outlet of the table ventilation device. Odor filters are used, in particular, when the table ventilation device provides a circulating air mode in which the cleaned air is not discharged to the outside but inside the room in which the table ventilation device is operated.
  • the table ventilation device comprises a vapor extraction opening, a vapor deflection device, a fan, a filter module, an extension means and a drive unit for the motorized retraction and extension of the extension means.
  • the table ventilation device according to the invention is characterized relative to the table ventilation devices known from the prior art in that the filter module can be moved by means of the drive unit from a filter module operating position into a filter module removal position. As a result, a convenient and cost-effective removal of the filter module and, in particular, the filter of the filter module from the table ventilation device is ensured.
  • the vapor extraction opening which is also denoted hereinafter as the extraction opening, forms the upper end of the table ventilation device.
  • the extraction opening is formed by the upper edge of a housing.
  • the fan is arranged in the table ventilation device below the vapor extraction opening.
  • the vapor deflection device is a device via which vapor is conducted to the vapor extraction opening. The vapor deflection device thus preferably protrudes upwardly at least temporarily beyond the vapor extraction opening.
  • the filter module and thus the at least one filter may be integrated in the operating area of the extension means, which also may be used for moving the vapor deflection device.
  • the filters of the filter module may be lifted or extended, and also lowered or retracted again, beyond the vapor extraction opening or the appliance upper face for the removal thereof.
  • tablette ventilation device is to be generally understood to mean extractor devices, as are used for extracting cooking fumes, steam or steam loaded with grease which are produced above a hob.
  • the fumes cited by way of example are also denoted as “vapor”.
  • table ventilation devices are also denoted as “downdraft” devices, i.e. as an extractor device in which the vapor is extracted downwardly. “Downwardly” in this case means below the hob surface.
  • the table ventilation device is a table ventilation device which may be operated at least temporarily in a circulating air mode.
  • This has the advantage that the installation does not require any further measures in the surrounding building structure since, in particular, exhaust air ducts, exhaust air grilles, insulation to the external environment and the like are dispensed with.
  • it may be advantageous if the table ventilation device is only suitable for a circulating air mode.
  • the filter module may comprise at least one filter which may have additional fastening components, reinforcing devices or mounting connections.
  • the filter module may be a filter cassette. If a plurality of filter cassettes are required, all of the individual cassettes may be denoted together as the filter module.
  • the term filter module encompasses all that has to be replaced relative to the filters during the maintenance of the table ventilation device.
  • the filter module may also have means for collecting fluids and/or solids, namely oil pans, drip trays, grilles and the like.
  • At least one filter of the filter module is preferably a grease filter. In this case, both an active filter and a passive filter may be used as the grease filter.
  • the grease filter may be, for example, an expanded metal filter or an electrostatic filter. As a result, the particle separation from the vapor may be increased if required.
  • a “fan” within the meaning of the invention is to be understood to mean a device which is suitable for generating a pressure difference which produces a flow of vapor via the vapor extraction opening into the table ventilation device and through the filter module.
  • the fan is preferably a radial fan.
  • the drive unit may be an electrical device or a device to be operated manually, which is suitable for adjusting the extension means.
  • the extension means may comprise, for example, a linkage, a spindle nut or a further device which, in particular, may be moved upwardly or downwardly by the output of the drive unit.
  • the filter module may be moved at least temporarily upwardly or downwardly by this movement.
  • the extension means may have hydraulic and/or electrical components. The invention is described hereinafter substantially with reference to one extension means. However, according to the invention the table ventilation device may also have a plurality of extension means.
  • the filter module operating position is a position in which the filter module is located fully or partially inside the table ventilation device.
  • the filter module operating position is also denoted hereinafter as the filter operating position.
  • the filter module removal position which is also denoted as the filter removal position, is a position in which the filter module is located fully or partially outside the table ventilation device or inside the table ventilation device adjacent to the vapor extraction opening. It is important that the filter removal position is a position suitable for changing a filter module or the filter module.
  • the filter module may be located in the filter removal position above or virtually flush with a work surface upper face of a kitchen cabinet and thus the vapor extraction opening.
  • the filter operating position and/or the filter removal position may also encompass more than one position.
  • position may also be understood to mean the “position range”.
  • the filter module preferably has at least one filter which is a grease filter.
  • the filter module additionally has at least one filter which is an odor filter.
  • the approach according to the invention is based on the recognition that in contrast to established approaches, according to which odor filters are located deep in the appliance interior below the grease filter unit and, in particular, in the direction of flow downstream of the fan of the table ventilation device, the odor filter may be positioned in the vicinity of the vapor extraction opening.
  • the odor filter may be specifically provided as a replaceable filter of a filter module, the position thereof being able to be changed via the drive unit, and which thus may be conveniently removed from the ventilation device.
  • odor filter includes filters which are suitable for filtering odor molecules out of the vapor or for removing odors in a different manner.
  • the odor filter may also be either a passive or an active filter.
  • the odor filter may be an (active) carbon filter, a zeolite filter or a filter with a plasma source.
  • odor filter is to be understood to mean a filter which a person skilled in the art generally considers as suitable for reducing the odor of the vapor when flowing through the odor filter.
  • the filter module may be removed from an upwardly facing vapor extraction opening, whereby the filter module may be reached for replacement in a particularly simple and ergonomic manner.
  • the filter module is releasably arranged as a whole and/or in parts on a filter module holder.
  • the installation and dismantling of the filter module may be considerably simplified by means of the filter module holder.
  • the complexity of the filter module itself may be reduced if the components for coupling the filter module to the extension means are arranged on the filter module holder.
  • conventional filter modules may also be used for the table ventilation device according to the invention.
  • the vapor deflection device is movable by means of the at least one extension means from a resting position into an operating position.
  • the vapor deflection device may preferably comprise a vapor guide plate holder and a vapor guide plate.
  • the vapor guide plate may be arranged on the vapor guide plate holder.
  • the vapor guide plate may be positioned on the vapor guide plate holder or inserted therein from above.
  • the vapor guide plate may be a glass plate.
  • the operating position of the vapor deflection device is a position in which the vapor deflection device and, in particular, the vapor guide plate are located fully or partially outside the table ventilation device.
  • the resting position of the vapor deflection device is a position in which the vapor deflection device and, in particular, the vapor guide plate are located fully or partially inside the table ventilation device.
  • a “vapor deflection device” is to be understood to mean a device which promotes a conduction of cooking fumes to the vapor extraction opening. Additionally, the vapor deflection device may serve as a splash guard. It is advantageous here that the components of the table ventilation device do not protrude beyond the vapor extraction opening when the table ventilation device is not in operation. Thus the kitchen cabinet receiving the table ventilation device may be designed to be particularly unobtrusive.
  • the provision of a glass plate has the advantage that the vapor guide plate is also unobtrusive during operation. Glass also has the advantage that it is chemically inert and no consequential damage is caused by grease deposits via the vapor flowing past.
  • the movement of the filter module is carried out directly via the at least one extension means.
  • the extension means directly acts on the filter module, for example on a filter module holder. Since the extension means may be retracted and extended, i.e. lifted and lowered, by a drive of the drive unit, for example a motor, the filter module may also be lifted and lowered when the filter module is directly coupled to the extension means.
  • the movement of the filter module is carried out indirectly via an intermediate element.
  • the intermediate element in particular, is a movable element of the table ventilation device which may be retracted and extended by the at least one extension means.
  • this intermediate element is the vapor deflection device.
  • the extension means which may be moved via the drive, is not in direct contact with the filter module. Instead, the extension means is coupled indirectly to the filter module via the vapor deflection device. For this indirect coupling the filter module is temporarily connected to the vapor deflection device.
  • the filter module is moved at least temporarily and the vapor deflection device is moved at least temporarily via the at least one extension means.
  • the construction of the table ventilation device is simplified.
  • a single drive may be used, for example a single motor in the table ventilation device, in order to move either the filter module or the vapor deflection device. If the extension means via which the filter module is moved is also the same extension means via which the vapor deflection device is also moved, the construction of the table ventilation device is further simplified.
  • both the filter module and the vapor deflection device are moved at least temporarily at the same time via the at least one extension means.
  • the drive unit has a first mode in which the filter module is decoupled from the extension means and a second mode in which the filter module is coupled to the extension means.
  • all operating states of the drive unit which provide no movement of the filter module, are encompassed by the first mode.
  • All operating states which provide a movement of the filter module are encompassed by the second mode.
  • the second mode may be a maintenance mode in which the filter module is replaced.
  • the second mode may also be an operating state in which the filter module position is optimized. It is advantageous here that the drive unit and/or the extension means do not have to be duplicated but, for example, may be used both for the movement of the filter module and for the movement of the vapor deflection device.
  • Coupled is understood to mean that a dependency is provided between the movement of the filter module and the movement of the extension means.
  • the coupling may be formed, for example, by a stop.
  • the coupling may be produced by a frictional connection, a non-positive connection or a positive connection, or combinations thereof.
  • the actual coupling never has to take place on the filter module itself but may take place, in particular, on the filter module holder or on another component. It is important that a different relative movement is present between the filter module and extension means between the first and second mode.
  • the filter module is temporarily connected to the vapor deflection device via a switchable driver element.
  • this connection may be present between the filter module and the vapor deflection device in the second mode of the drive unit. Since the driver element is switchable, the connected state of the filter module and the vapor deflection device may be produced in the transition between the first mode and the second mode and cancelled again in the transition from the second mode into the first mode.
  • the connection between the filter module and the vapor deflection device represents a rigid connection, whereby the filter module is moved by the same amount when the vapor deflection device is moved.
  • connection of the filter module to the vapor deflection device is made when reaching a connecting position of the vapor deflection device or is at least prepared when reaching this position.
  • a previously defined switching logic which creates or releases the connection between the filter module and the vapor deflection device depending on the position of the vapor deflection device, may be implemented by means of such a connecting position. This may take place for example mechanically, electrically and/or with the assistance of sensors. It is important that there is an association between the vapor deflection device “reaching the connecting position” and the “connection of the filter module and the vapor deflection device”.
  • connection does not necessarily have to take place at the same time and/or location when the vapor deflection device reaches the connecting position. Instead, in this case a logical, control-technical or mechanical measure may also be made, said measure being implemented with a further movement of the extension means for a predictable connection or a predictable release of the connection.
  • the state in which the filter module is connected to the vapor deflection device is the state in which the filter module is indirectly coupled to the extension means.
  • the connecting position corresponds to an end position of the vapor deflection device.
  • This has the advantage that an inadvertent connection is avoided. Not least, technical arrangements for the connection may be more easily integrated in the table ventilation device, since in the end position more space is available for built-in components.
  • the end position of the vapor deflection device which may also be denoted as the maximum position, is to be understood to mean a position in which the vapor deflection device is extended upwardly beyond a normal operating position.
  • connection is produced or prepared by a movement sequence of two components which are movable relative to one another, in particular the filter unit and an intermediate element, in particular the vapor deflection device.
  • the vapor deflection device is stopped when it is lowered, and raised again, and a coupling is created thereby via a passive latching element. This has the advantage that the effective stroke height of the filter module is freely selectable, depending on where the directional change of the vapor deflection device takes place.
  • the driver element via which the filter module is connected to the vapor deflection device and via which the indirect coupling of the extension means to the filter module is generated, may be arranged on the filter module. Via the connection generated by the driver element, when the vapor deflection device is moved the filter module is entrained thereby.
  • the driver element is a switchable driver element and may also be denoted as a connectable driver element.
  • the driver element may be any device which provides a corresponding stop, in particular a pawl, a cam, a bolt, a hook or the like.
  • the driver element in this case may be arranged on the filter module, on the filter module holder.
  • extension means may be used as the extension means, since no other extension means are required.
  • the entrainment requires that the force of the extension unit and the dimensioning of the extension means is sufficient to be able to move both the vapor deflection device and the filter module.
  • the table ventilation device has a single drive unit for the motorized retraction and extension of a plurality of components, in particular of the vapor deflection device and of the filter module.
  • a cost-effective drive which is more economical in terms of installation space may be achieved, since instead of using a plurality of individual drives, a single drive unit with means for mechanical retraction or decoupling is sufficient.
  • the filter module odor filter, grease filter, oil collection container, liquid collection container
  • the filter module and, in particular, the filters may thus be moved by motor into an ergonomically favorable removal position for cleaning purposes. In addition to the drive which is saved, the effort for the electronic activation is also minimized.
  • the filter module is positioned in the filter module operating position inside the table ventilation device on a sealing surface, wherein preferably the seal is achieved by the inherent weight of the filter module on the sealing surface. As a result, it is possible to ensure that no vapor is suctioned past the filter module.
  • the filter module is fitted in a filter slot.
  • a sealing surface may be configured on the active surface pair of the filter module-filter slot.
  • the active surface pair is configured such that a relative movement between the filter module and filter slot is possible.
  • a latching mechanism is arranged on the filter module for connecting the vapor deflection device to the filter module.
  • a “latching mechanism” is to be understood to mean any device which permits a mechanical connection via at least the driver element.
  • the latching mechanism may be configured such that the driver element is arranged so as to be switchable on the filter module, on the filter module holder or a further component connected to the filter module.
  • a modular unit, which may be arranged specifically for the connection to the vapor deflection device on the filter module, may be provided by the latching mechanism. This may simplify the production and the assembly of the table ventilation device.
  • the latching mechanism may comprise the driver element, a switching plate, a carrier plate as well as an upper switching lever and a lower switching lever.
  • the carrier plate may be arranged rigidly on the filter module or a component connected to the filter module and the switching plate may be arranged so as to be movable relative to the carrier plate.
  • the switching plate may be displaced via the upper and lower switching lever relative to the carrier plate into a first and second position.
  • the latching mechanism forms a trapezoidal arrangement which provides two different positions.
  • the upper switching lever and the lower switching lever are arranged on the switching plate such that when the upper switching lever is turned by means of the vapor deflection device this activates the driver element and when the lower switching lever is turned by means of the vapor deflection device this deactivates the driver element.
  • the latching mechanism is configured such that when the vapor deflection device passes the upper switching lever, said upper switching lever is turned thereby and a displacement of the switching plate relative to the carrier plate takes place.
  • the driver element is switched into an activated position.
  • the turning may be provided, for example, when the vapor deflection device is moved into an end position or a different predefined position.
  • the driver element may serve as a stop for connecting the filter module to the vapor deflection device and thus for coupling the filter module to the extension means.
  • the connection may be achieved by the vapor deflection device moving downwardly, passing the activated driver element and only coming into engagement therewith when lifted again.
  • the driver element may be pivotably pretensioned so that the vapor deflection device is able to pass this driver element when it is activated.
  • the lower switching lever when the lower switching lever is turned by means of the vapor deflection device this deactivates the driver element.
  • the principle is similar to the turning of the upper switching lever, only in reverse.
  • the driver element When turned, the driver element is switched into the deactivated position via a displacement of the switching plate relative to the carrier plate. If the vapor deflection device moves upwardly again after the lower switching lever has been turned, the driver element no longer forms a stop and there is no connection of the filter module to the vapor deflection device. This permits a particularly simple, safe and user-friendly connection of the filter module to the vapor deflection device and thus an indirect coupling and decoupling of the filter module to the extension means.
  • the user who wishes to replace the filter module, or the filter of the filter module only has to move the vapor deflection device into an upper end position, and then lower the vapor deflection device, and when lifted again, the filter module is entrained. It is particularly advantageous if this process is stored in a system control logic and runs automatically.
  • Directional information such as upwardly or downwardly, unless indicated otherwise, refers to a table ventilation device in the installed state.
  • the drive unit has a drive spindle on which the extension means is movably fastened.
  • the extension means may be displaced upwardly or downwardly, i.e. moved, by rotating the extension means on the drive spindle.
  • the drive spindle has a length which corresponds to the stroke which is required in order to move the vapor deflection device from the resting position into the operating position.
  • the length is slightly greater than this stroke and is equal to the stroke which is required in order to move the vapor deflection device beyond the operating position upwardly into the end position.
  • the movement path of the extension means is defined by the overall height of the entire appliance (height of the base cabinet) this overall height is frequently already fully utilized by the main movement, the extension of the vapor deflection device.
  • the stroke available along the length of the spindle may be used firstly for extending the vapor deflection device and secondly for extending the filter module.
  • the extension means may be a conventional extension means per se, which does not have to be modified or only slightly modified. Costs and weight may also be saved if the drive spindle is as short as possible.
  • One or more drive spindles which are the same or different may be present.
  • the term drive spindles also encompasses similar-acting components, in particular hydraulic cylinders.
  • the drive unit has a transmitting element which is movably mounted, the coupling for the second mode taking place after the transmitting element has been moved out of the movement path of the extension means.
  • the transmitting element transmits, in particular, in one position the movement of an extension means to the vapor deflection device. In a further position, the transmitting element serves as a blocking device for the vapor deflection device.
  • the transmitting element may thus also be denoted as a changeover switch. In the position in which it serves as a blocking device, the transmitting element releases the extension means for moving the filter module.
  • the transition takes place between the first mode of the drive unit in which the extension means is decoupled from the filter module, into the second mode in which the extension means is coupled to the filter module.
  • the changeover between these modes is able to be operated in a user-friendly, simple and safe manner, due to its design.
  • the term “transmitting element” and/or “changeover switch” is to be understood to mean in the broadest sense a body which may form a stop for the vapor deflection device. The stop has to be present in this case at least in the case of the blocking.
  • the transmitting element is mounted in a guide such that said transmitting element pivots out when an interruption of the guide is reached and at the same time forms the stop for the vapor deflection device and releases a path for the extension means in the guide.
  • a “transmitting element” is understood to mean a body via which a force transmitting element from the extension means to the vapor deflection device is permitted.
  • the transmitting element is pivotably mounted and thus arranged in a guide such that in a position in which the guide is interrupted the changeover switch pivots outwardly. The latter may be the case, for example, when the vapor deflection device is in a previously defined position.
  • the transmitting element may be moved in the guide by the extension means and, with a continuing operation of the extension means after pivoting the transmitting element outwardly, the extension means may move past the transmitting element and come into contact with the filter module.
  • the filter module may then be extended upwardly by the extension means.
  • the extension means for example, may be a drive spindle nut. In the state in which the extension means in the guide moves past the transmitting element, the extension means prevents the transmitting element from pivoting back into the guide.
  • the table ventilation device also has an extraction opening cover which is closed in a switched-off state of the table ventilation device, wherein an extension of the extension means, i.e. a movement of the extension means upwardly, causes the extraction opening cover to be moved into an open position.
  • the closing of the extraction opening in the switched-off state of the table ventilation device has the advantage that firstly the filter is protected from moisture, dust and dirt from the environment.
  • the kitchen cabinet receiving the table ventilation device may thus be designed particularly unobtrusively.
  • the construction of the table ventilation device is further simplified by the extraction opening cover being moved by the extension means.
  • the extraction opening cover is pretensioned.
  • the pretensioning may be selected here such that the pretensioning promotes a closed position of the extraction opening cover.
  • the pretensioning may be selected such that it promotes an open position of the extraction opening cover. It is important that the extraction opening cover is open when the extension means is extended.
  • the pretensioning has the advantage that the movement of the extraction opening cover is always ensured in the pretensioned direction. As a result, a simple actuation of the extraction opening cover may be achieved.
  • the extraction opening cover is pretensioned via a spring. This ensures a long-lasting pretensioning with a linear spring constant and at the same time low costs.
  • the table ventilation device has only a single drive unit which permits three movements, in particular 1. opening the extraction opening cover which closes the table ventilation device when the table ventilation device is switched off; 2. extending the vapor deflection device which deflects the extraction of the cooking fumes to the vapor extraction opening and serves as a splash guard; and 3. extending the filter elements for removal and for cleaning.
  • FIG. 1 shows a table ventilation device according to the invention in a cross-sectional view according to a first embodiment
  • FIG. 2A and FIG. 2B show detailed views of a latching mechanism for a table ventilation device according to the invention according to the first embodiment as a cross-sectional view of two operating states;
  • FIGS. 3A to 3F show detailed views of a latching mechanism for a table ventilation device according to the invention according to the first embodiment as a perspective view of six different operating states;
  • FIGS. 4A to 4E show the table ventilation device according to the invention according to the first embodiment as a cross-sectional view of five different operating states
  • FIGS. 5A to 5E show the table ventilation device according to the invention according to a second embodiment as a cross-sectional view of five different operating states;
  • FIGS. 6A to 6E show the table ventilation device according to the invention according to the second embodiment as a cross-sectional view of five different operating states, showing the positions of a passive latching element in the respective operating states;
  • FIGS. 7A to 7F show the table ventilation device according to the invention according to a third embodiment as a cross-sectional view of six different operating states.
  • FIGS. 8A to 8C show the table ventilation device according to the invention according to the third embodiment as a cross-sectional view of different operating states, showing the positions of a decoupling and locking mechanism in three exemplary operating states.
  • FIG. 1 a simplified cross-sectional view of a first embodiment of the table ventilation device is shown.
  • the table ventilation device has a vapor extraction opening 14 which in the embodiment shown forms the upper end of the table ventilation device 10 .
  • the vapor extraction opening 14 preferably extends in the width direction of a hob, not shown, behind the rear edge of the hob.
  • the width of the vapor extraction opening 14 corresponds to the width of the hob.
  • the housing 69 of the table ventilation device 20 extends downwardly from the vapor extraction opening 14 .
  • the fan 18 is provided in the housing 69 in the lower region.
  • a vapor deflection device 16 and a filter module 20 are provided in the upper region of the housing 69 in the embodiment shown.
  • the vapor deflection device 16 has in the embodiment shown a vapor guide plate 34 which extends in the width direction of the table ventilation device 10 and preferably is a glass plate.
  • the vapor guide plate 34 is located in the rear region of the table ventilation device 10 , in particular adjacent to the rear edge of the vapor extraction opening 14 .
  • the vapor guide plate 34 is located in the vertical direction.
  • the vapor guide plate 34 in the embodiment shown is held by a vapor guide plate holder 32 .
  • the vapor guide plate 34 is held on the lateral edge thereof by the vapor guide plate holder 32 .
  • a filter module 20 is arranged adjacent to the vapor deflection device 16 , in particular offset to the front.
  • the filter module 20 also extends in the width direction of the table ventilation device 10 and is arranged parallel to the vapor guide plate 34 .
  • the filter module 20 has in the embodiment shown two filters, in particular a grease filter 30 and an odor filter 26 .
  • the grease filter 30 is arranged in the filter module 20 above the odor filter 26 .
  • the grease filter 20 may be positioned on the odor filter 26 or may be connected in a different manner thereto.
  • the filter module 20 has in the embodiment shown a filter module holder 28 .
  • a sealing plane 62 which may also be denoted as a sealing wall, is provided in the interior of the housing 69 .
  • the sealing plane 62 extends in the horizontal direction and is provided at such a height that the upper edge of the filter module 20 , in the state in which the filter module 20 is positioned on the sealing plane 62 with the lower edge, in particular the lower edge of the filter module holder 28 , is located below the vapor extraction opening 14 .
  • the extraction opening cover 12 is shown in FIG. 1 in the open state in which said extraction opening cover 12 is located in the housing 69 , in particular in the front region of the housing 69 in the vertical direction below the vapor extraction opening 14 .
  • the table ventilation device 10 has a drive unit 22 , only a connecting shaft thereof being able to be seen in FIG. 1 , said connecting shaft connecting two drive spindles 48 which are arranged in the lateral regions of the table ventilation device 10 .
  • the shaft and thus the drive spindles are driven by a motor 70 .
  • the first embodiment of the invention which is shown in FIG. 1 , provides short drive spindles 48 (only shown in dashed lines in FIG. 1 ) for an extension means (not visible).
  • the drive spindle 48 has a length L which corresponds at least to the stroke xW which is required in order to move the vapor deflection device 16 from a resting position WR into the operating position WA shown in FIG. 1 .
  • the short lifting path thereof is repeatedly used by a switchable latching hook/coupling mechanism (see FIGS. 2A and 2B ) which may be denoted as the latching mechanism 38 and is described below in more detail.
  • the filter module 20 may be moved if required beyond the appliance boundary, in particular beyond the vapor extraction opening 14 .
  • the length L of the drive spindles 48 is greater than the stroke xW.
  • an end position WM of the vapor deflection device 16 may be achieved by the drive spindle 48 .
  • the filter module 20 and/or the vapor deflection device 16 When actuating the drive unit 22 the filter module 20 and/or the vapor deflection device 16 are moved upwardly via the vapor extraction opening 14 .
  • the vapor deflection device 16 is moved from a resting position WR into an operating position WA by the stroke xW of the vapor deflection device 16 .
  • FIG. 2A shows an embodiment of a latching mechanism 38 in an installed situation according to the first embodiment of the invention in a first operating position.
  • This operating position corresponds to the first mode, namely the state in which the extension means (not shown) is not indirectly coupled to the filter module 20 .
  • the latching mechanism 38 is arranged on the filter module 20 . More specifically, the latching mechanism 38 is arranged on a filter module holder (not shown).
  • the latching mechanism 38 comprises a driver element 36 , a switching plate 40 , a carrier plate 42 as well as an upper switching lever 44 and a lower switching lever 46 .
  • the carrier plate 42 is rigidly fastened to the filter module (not shown).
  • the switching plate 40 is displaceably mounted on the carrier plate 42 , and the upper switching lever 44 , the lower switching lever 46 and the driver element 36 are pivotably mounted thereon. As a result, a substantially trapezoidal suspension is achieved.
  • the switching plate 40 also engages in the driver element 36 such that a movement of the switching plate 40 relative to the carrier plate 42 , caused either via the upper switching lever 44 or the lower switching lever 44 , leads to a switching, i.e. activation or deactivation, of the driver element 36 .
  • FIG. 2B shows the latching mechanism 38 according to FIG. 2A in an installed situation according to the first embodiment of the invention in a second operating position.
  • This operating position corresponds to the second mode, namely the state in which the drive unit (not shown) is coupled to the filter module indirectly via the vapor deflection device.
  • the upper switching lever 44 is actuated when it is turned. It is only possible to turn the switching lever 44 upwardly, since the switching plate 40 is already in the stop at the bottom.
  • the indirect coupling of the extension means 24 to the filter module 20 is prepared, since a return of the vapor deflection device 16 below the activated driver element 16 produces a stop for the vapor deflection device 16 on the driver element 36 which, with renewed lifting of the vapor deflection device 16 , leads to an engagement in which the filter module 20 is entrained by the vapor deflection device 16 .
  • the driver element 36 may at the same time be spring-loaded, so that in the activated state the traveling over by the vapor deflection device 16 pushes this driver element temporarily inwardly and, after the vapor deflection device 16 has passed by, the driver element 36 deflects again in order to provide the stop.
  • the driver element 36 may be deactivated by the vapor deflection device 16 being moved into a lower extreme position in which said vapor deflection device turns the lower switching lever 46 . As visible from FIG. 2A , this may be the case only when the driver element 36 is activated and thus the lower switching lever 46 also correspondingly protrudes from the switching plate 40 .
  • FIGS. 3A to 3F The different switching processes according to the first embodiment are illustrated with reference to FIGS. 3A to 3F .
  • the latching mechanism 38 which is switched via a movement of the vapor deflection device 16 is shown. More specifically, the switching takes place in FIGS. 3A to 3F via a vapor guide plate holder 32 which moves along the filter module 20 , i.e. is moved relative thereto.
  • FIG. 3A shows a state which corresponds to a closed position of the table ventilation device 10 .
  • the lower switching lever 46 must be deactivated forcibly, since the vapor deflection device 16 is directly adjacent to this lower switching lever.
  • the driver element 36 is in a deactivated position and the upper switching lever 44 is in an activated position, i.e. deflected position.
  • FIG. 3B shows the vapor deflection device 16 in an operating position WA which is located just below the upper switching lever 44 . Only when the vapor deflection device 16 is moved further upwardly above this operating position and thus into a maximum position, FIG. 3C , is the upper switching lever 44 turned and as a result the driver element 36 is activated via the switching plate 40 .
  • the connecting position WVer which in this case also represents an end position WM of the vapor deflection device 16
  • the indirect coupling of the extension means (not shown) to the filter module 20 is prepared. This means that with a further movement of the vapor deflection device 16 this will cause an indirect coupling of the filter module 20 to the extension means.
  • the drive unit 22 is switched from a first mode into a second mode.
  • connection of the filter module 20 to the vapor deflection device 16 takes place in a manner which is offset spatially and chronologically, namely when the vapor deflection device 16 initially travels over the pretensioned activated driver element 36 as illustrated in FIG. 3D , then moves below said driver element, as illustrated in FIG. 3E and then comes into engagement therewith, as illustrated in FIG. 3E .
  • the prepared coupling may be reversed by returning the vapor deflection device 16 into the resting position WR.
  • the filter module holder may be moved upwardly by 175 mm. All of the specified lengths are to be understood to be purely by way of example and are not intended to be understood as limiting the invention thereto.
  • FIGS. 4A to 4E illustrate the aforementioned operating states of the first embodiment of the table ventilation device 10 in combination with the switching positions of the extraction opening cover 12 .
  • the extraction opening cover 12 In the resting position WR according to FIG. 4A the extraction opening cover 12 is located in the horizontal direction and fully covers the vapor extraction opening 14 .
  • the filter module 20 is positioned on a sealing plane 62 .
  • the vapor deflection device 16 moves upwardly, driven by the drive unit 22 .
  • the drive unit 22 in this case is connected to a movement device 58 , only the bearing point thereof being illustrated schematically in FIGS. 4A to 4E .
  • the bearing point of the movement device 58 is moved downwardly by the drive unit 22 .
  • connection between the drive unit and the movement device 58 may be provided, for example, via a pin guided in a rail and a spring which is connected to the pin.
  • the components of this connection and the movement device 58 are not shown in FIGS. 4A to 4E .
  • the bearing point being displaced downwardly, the extraction opening cover 12 pivots from the horizontal direction into an inclined position in which the front end of the extraction opening cover 12 is located below the plane of the vapor extraction opening 14 .
  • the filter module 20 is located as before on the sealing plane 62 .
  • This state shown in FIG. 4B corresponds to an exemplary stroke x ⁇ 75 mm of a drive spindle nut (not illustrated).
  • FIG. 4B corresponds to an exemplary stroke x ⁇ 75 mm of a drive spindle nut (not illustrated).
  • FIG. 4C shows the vapor deflection device 16 in the connecting position WVer with a height of, for example, 265 mm.
  • the bearing point of the movement device 58 is moved further downwardly.
  • the extraction opening cover 12 is fully opened in this position and located in the vertical direction in the interior of the housing 69 .
  • the driver element not illustrated, is activated.
  • the filter module 20 is located on the sealing plane 62 .
  • the vapor deflection device 16 is located in a position below the activated driver element 36 (see FIG. 3E ) shortly before the coupling between the drive unit 22 and the filter module 20 .
  • FIG. 4E shows the filter module 20 in a filter module removal position FE.
  • the latching mechanism 38 is arranged on the filter module 20 and may be entrained via a driver element 36 by the vapor deflection device 16 .
  • the latching mechanism 38 may also be arranged on the vapor deflection device 16 and entrain the filter module 16 via a driver element 36 .
  • the latching mechanism 38 may be configured to be approximately the same for both alternatives.
  • FIGS. 5A to 5E and 6A to 6E disclose a second embodiment of the table ventilation device 10 according to the invention.
  • a short drive spindle (not illustrated) is provided.
  • the connection of the filter module 20 to the vapor deflection device 16 does not take place via a latching mechanism 38 according to the first embodiment but via a passive latching element 66 (see FIG. 6A to 6E ) which permits a mechanical latching or hooking of the vapor deflection device 16 to the filter module 20 .
  • FIGS. 6A to E the movement of the passive latching element 66 is shown schematically adjacent to the table ventilation device 10 .
  • the passive latching element 66 is a driver element which is provided on the vapor deflection device 16 . From a latching element initial position RA, the passive latching element 66 may be guided in a sliding guide, and an extension movement of the vapor deflection device 16 follows without having to couple the filter module 20 to the extension means 24 .
  • the latching element 66 is latched in the filter module 20 only when the vapor deflection device 16 is partially retracted and extended again. The latching element 66 in this case is clamped to the filter module 20 and entrains said filter module therewith.
  • the second embodiment of the table ventilation device 10 differs from the first embodiment in that the filter module 20 is arranged in a filter module operating position FA inside a filter slot 68 .
  • the filter slot 68 serves for guiding the air through the filter module 20 .
  • the vapor deflection device 16 is located in an operating position WA at a stroke height of, for example, 235 mm.
  • the filter module 20 is, in this case as before, in its initial position, the filter module operating position FA.
  • the extraction opening cover 12 is open in this operating state.
  • the vapor deflection device 16 is fully extended to a stroke height of, for example, 265 mm.
  • the filter module 20 is lifted sufficiently far that it terminates flush with an upper face of the table ventilation device 10 , in particular the vapor extraction opening 14 .
  • the vapor deflection device 16 is in a partially lowered position and is latched via the passive latching element 66 in the filter module 20 .
  • the partially lowered position may correspond, in particular, to a stroke height of 80 mm.
  • FIG. 5E shows a fifth operating state.
  • the filter module 20 is in a filter removal position FE.
  • the stroke height corresponds, for example, to 265 mm.
  • the filter element 20 according to the second embodiment may be lifted, for example, by up to 155 mm.
  • FIGS. 6A to 6E the operating states according to FIGS. 5A to 5E are illustrated in connection with the passive latching element 66 .
  • FIGS. 6A and 6B it may be seen that in normal operation of the table ventilation device 10 during the lowering of the vapor deflection device 16 the passive latching element 66 is moved along the filter module 20 with the movement direction of the vapor deflection device 16 . At the lowest point, the passive latching element 66 is tilted in a direction away from the filter module 20 .
  • the passive latching element 66 is tilted when moved upwardly in the direction of the filter element 20 , whereby the filter module 20 is clamped to the passive latching element 66 .
  • the filter module 20 is again in its filter module operating position FA, whereby the clamping is released.
  • the filter module 20 may be coupled to the drive unit 22 with any stroke x, whereby the drive unit 22 is switched from a first mode into a second mode.
  • This coupling takes place by stopping and extending the vapor deflection device 16 again, whereby the vapor deflection device 16 is clamped with the filter module 20 and said filter module is entrained upwardly by the vapor deflection device 16 , as illustrated in FIGS. 6D and 6E .
  • FIGS. 7A to 7F and 8A to 8C disclose a third embodiment of the table ventilation device 10 according to the invention.
  • the table ventilation device 10 according to the third embodiment has a drive spindle 48 , the length L thereof being sufficient in order to move both the vapor deflection device 16 and the filter module 20 .
  • the coupling for the second mode takes place according to the third embodiment after a transmitting element, which is also denoted as changeover switch 50 , has changed its position.
  • the changeover switch 50 is suitable for changing over the force transmitting element from the extension means 24 such that the filter module 20 is driven or extended instead of the vapor deflection device 16 .
  • a tractive drive is no longer present, but rather a direct drive of the filter module 20 via the extension means 24 of the drive unit 22 .
  • FIG. 8A shows the table ventilation device 10 in an extended state.
  • the vapor deflection device 16 is in a resting position WR and the filter module 20 is in a filter module operating position FA.
  • the drive unit 22 drives the vapor deflection device 16 via the extension means 24 and the changeover switch 50 , as soon as the table ventilation device 10 transfers to an operating state, namely as illustrated in FIG. 7B .
  • the force transmitting element in this case takes place via the drive spindle 48 which in turn drives the changeover switch 50 and the vapor deflection device 16 via a drive spindle nut 64 .
  • the changeover switch 50 in this case is arranged inside a guide 52 .
  • the filter module 20 has a filter cross member 60 .
  • a grease filter 30 is arranged above the filter cross member 60 in the direction of the vapor extraction opening 14 .
  • the odor filter 26 is arranged below the filter cross member 60 .
  • the drive spindle 48 drives the drive spindle nut 64 and the changeover switch 50 until the changeover switch 50 reaches an interruption 54 of the guide 52 in the extension direction and pivots to the side into the interruption 54 .
  • This lateral pivoting-out is achieved in the example shown by an eccentric mounting of the changeover switch 50 inside the guide 52 .
  • the force equilibrium on the changeover switch 50 may be illustrated as follows.
  • a vertical force from the drive spindle nut 64 acts at the bottom on the changeover switch 50 . Since the changeover switch 50 is eccentrically mounted in the guide 52 , the vertical force from the drive spindle nut 64 brings about a torque on the changeover switch 50 , which brings this into contact with the guide 52 .
  • a lateral force is generated via the contact with the guide 52 , which prevents a pivoting of the changeover switch 50 .
  • the force equilibrium results in a vertical displacement or stroke change, since the changeover switch 50 is mounted in the guide 52 in a vertically-adjustable manner. If the lateral force disappears, namely at an interruption 54 of the guide 52 , then the torque on the changeover switch 50 causes the changeover switch to pivot out.
  • the components which are essential for the changeover namely the changeover switch 50 , the guide 52 and the interruption 54 , are defined in their entirety as the decoupling and locking mechanism 70 .
  • the decoupling and locking mechanism is designed such that, when the changeover switch is pivoted out, a path is released for the drive spindle nut 64 and at the same time the vapor deflection device 16 is blocked.
  • the locking mechanism 70 is also designed such that a return of the drive spindle nut 64 below the interruption 54 causes the changeover switch 50 to pivot out.
  • the coupling for the second mode takes place when the changeover switch 50 is pivoted out when it reaches an interruption 54 of the guide 52 , and at the same time forms a stop 56 for the vapor deflection device 16 , thereby blocking said vapor deflection device and releasing a path in the guide 52 for the extension means 24 .
  • the drive spindle nut 64 may strike against the filter cross member 60 and thus extend the filter module 20 , see FIGS. 7E and 7F .
  • a possibility which provides a longer drive spindle 48 with a decoupling and locking mechanism 70 is provided thereby to move the filter module 20 , in particular the filter cassette, out of the vapor extraction opening 14 of the table ventilation device 10 .
  • the vapor deflection device 16 in particular the glass pane, is decoupled in its upper end position from the drive unit 22 and at the same time locked so that for the additional path only the filter module 20 , in particular the filter cassette, is moved.
  • the filter module may provide a filter receiver in a separate cross member.
  • the grease filter 30 with the oil pan and the active carbon filter (odor filter 26 ) may be received by a respectively separate cross member.
  • the receiving cross member may be guided in the side parts, so that the filter modules may be moved flexibly in the vertical direction.
  • cross members for a glass pane or light diffuser may be decoupled. The glass receiving cross member in this case is guided in the side parts.
  • the individual elements i) extraction opening cover 12 ; ii) vapor deflection device 16 , in particular vapor guide plate holder 32 or the vapor guide plate 34 ; and iii) filter module 20 may be mechanically coupled.
  • the extraction opening cover 12 may be opened via a spring.
  • the glass pane For closing the extraction opening cover 12 , for example, the glass pane may be lowered and the extraction opening cover 12 closed against the spring force via a cover driver element.
  • the glass pane in this case may be positioned either only by its inherent weight on the vapor guide plate holder, which may also be denoted as the glass pane driver element of the drive spindle, or is mechanically fixedly connected thereto in the lifting direction so that the glass pane always moves together with the glass pane driver element.
  • the filter module 20 is positioned, for example, only by the inherent weight thereof and separately guided in the table ventilation device 10 , and is lifted if required by mechanically switchable coupling elements by the driver element of the drive spindle or by suitable force transmitting element via the vapor guide plate holder 32 , in particular the glass pane receiver. If the vapor deflection device 16 is lowered, the drive unit 22 may hold the extraction opening cover 12 closed against a spring force. Thus when the vapor deflection device 16 is extended, the extraction opening cover 12 may be opened by the spring force.

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  • 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)
US17/632,514 2019-08-21 2020-08-05 Table ventilation device Pending US20220275949A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019212492.5 2019-08-21
DE102019212492.5A DE102019212492A1 (de) 2019-08-21 2019-08-21 Tischlüftung
PCT/EP2020/071991 WO2021032481A1 (de) 2019-08-21 2020-08-05 Tischlüftung

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US20220275949A1 true US20220275949A1 (en) 2022-09-01

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US17/632,514 Pending US20220275949A1 (en) 2019-08-21 2020-08-05 Table ventilation device

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US (1) US20220275949A1 (de)
EP (1) EP4018130A1 (de)
CN (1) CN114222890A (de)
DE (1) DE102019212492A1 (de)
WO (1) WO2021032481A1 (de)

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Publication number Priority date Publication date Assignee Title
US4411254A (en) * 1981-04-24 1983-10-25 The Jenn-Air Corporation Countertop range with proximity ventilation and electronic air cleaner
ITVI20060140A1 (it) * 2006-05-09 2007-11-10 Arc Linea Arredamenti Spa Cappa aspirante per cucina
DE102007021317A1 (de) * 2007-05-07 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugsvorrichtung
US20120204855A1 (en) * 2011-02-04 2012-08-16 Huber John J Cooking Device with Ventilation and Filtration System
CN108348831B (zh) * 2015-11-10 2021-04-13 Bsh家用电器有限公司 用于蒸汽排除装置的过滤装置和蒸汽排除装置
EP3287701B1 (de) * 2016-08-26 2021-11-17 BSH Hausgeräte GmbH Kombinationsgerät umfassend ein kochfeld und eine dunstabzugsvorrichtung
DE102016117788A1 (de) * 2016-09-21 2018-03-22 Miele & Cie. Kg Abdeckvorrichtung für einen Muldenlüfter und Muldenlüftereinlasseinheit mit einer Abdeckvorrichtung
IT201700095549A1 (it) * 2017-08-23 2019-02-23 Elica Spa Piano cottura
BE1025527B1 (nl) * 2017-09-06 2019-04-05 Novy Nv Luchtafvoerinrichting
EP3701194A4 (de) * 2017-10-24 2021-08-04 Kenfam Pty Ltd Dunstabzugshaube

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EP4018130A1 (de) 2022-06-29
WO2021032481A1 (de) 2021-02-25
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