EP1902258B1 - Air guide box - Google Patents

Air guide box Download PDF

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Publication number
EP1902258B1
EP1902258B1 EP06754721A EP06754721A EP1902258B1 EP 1902258 B1 EP1902258 B1 EP 1902258B1 EP 06754721 A EP06754721 A EP 06754721A EP 06754721 A EP06754721 A EP 06754721A EP 1902258 B1 EP1902258 B1 EP 1902258B1
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EP
European Patent Office
Prior art keywords
air
closure
air vent
ventilation opening
insulating body
Prior art date
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Application number
EP06754721A
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German (de)
French (fr)
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EP1902258A1 (en
EP1902258B2 (en
Inventor
Udo Berling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Berbel Ablufttechnik GmbH
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Berbel Ablufttechnik GmbH
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Application filed by Berbel Ablufttechnik GmbH filed Critical Berbel Ablufttechnik GmbH
Priority to PL06754721T priority Critical patent/PL1902258T5/en
Publication of EP1902258A1 publication Critical patent/EP1902258A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/062—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having one or more bowls or cones diverging in the flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/0025—Ventilation using vent ports in a wall

Definitions

  • the present invention relates to an air duct box, in particular wall box, as an insert in a building wall with a ventilation opening for supply and / or exhaust air, which is closable by means of a movable from a closed position to an open position closure.
  • Prefabricated wall boxes for ventilation of buildings as a form of the generic air duct boxes are known in a variety of configurations.
  • the ventilation boxes are used to create an opening in the wall of a building for the supply of incoming and / or exhaust air.
  • a building wall is not only a wall, but also roofs, glazings, insulated panels and panels and the like into consideration.
  • the possibility of carrying air streams through the building wall through as incoming or outgoing air can result for different reasons, for example, to dissipate odorous exhaust air or used room air, or to introduce fresh or cooling air into the building.
  • a generic air duct box is for example in the published patent application DE 39 39 658 A1 disclosed.
  • a pivotally mounted closure is included in this air guide box. If this is in its closed position, no exhaust air can escape to the outside and no supply air can penetrate into the fan tube. By the closure of the air duct box is prevented in this way in particular that with the escaping exhaust air and a part of the building heat is lost.
  • Closure mechanics oppose the supply or exhaust air flow a significant flow resistance and thereby the throughput of connected to the respective air guide box fan units, such as cooker hoods, clothes dryers, Toilettenldividerer, air conditioners, heat exchangers and the like, is significantly affected.
  • WO 01/71261 describes a valve device for controlling the air flow.
  • the device consists of a cylindrical fan tube, in which a likewise cylindrical sleeve is inserted.
  • a disk unit with a disk is attached to one end of the sleeve, which is located outside of the fan tube. At this end, the sleeve has slots through which air can flow.
  • the disc is provided with a sound-absorbing fiber mat and in the sleeve, a filter device is provided for filtering dirt particles.
  • DK 172353 describes a ventilation valve for receiving outside air.
  • a fixed cylindrical fan tube on the outside of a building wall protrudes out of this.
  • another cylindrical tube is slidably mounted with kieinerem diameter, which is lined on its inside with an insulation.
  • the end of the cylindrical fan tube, where the outside air is received, is closed and has on its inside an end insulation.
  • the outside air can flow in the open state of the ventilation valve via a slot which is provided in the side wall of the cylindrical fan tube.
  • an air guide box on the one hand has a good thermal external insulation and in which the closure in the supply or exhaust air operation causes only the lowest possible flow resistance to the supply or exhaust air flow.
  • the closure should close the fan tube in its closed position possible good sealing.
  • an air guide box according to claim 1, by the closure is provided with a thermal insulation, which is positionable in the closed position of the closure in a portion of the fan tube and in the open position of the closure outside the fan tube.
  • the potential for heat losses caused by the air guide box is significantly reduced.
  • the ability to move the thermal insulation in the open position of the closure in a position outside the fan tube, the flow resistance is not increased by the thermal insulation in such a product design.
  • the thermal insulation of the air duct box for the periods in which no supply or exhaust air are sucked in or blown out through the air guide box the throughput of the connected to the air guide box hood during their operation is not adversely affected.
  • With a favorable design of the linkage, of which the closure is held with the thermal insulation it is even possible to lower the flow resistance of the air guide box against the incoming or exhaust air flowing through it compared to the previously known air duct boxes.
  • the suction of a connected ventilation device such as a hood, heat pump or air conditioning can be increased.
  • the air guide box according to the invention can be produced inexpensively. So it is possible to produce the fan tube made of commercially available PVC pipes.
  • the PVC pipes can be bought cheaply and in many cross-sectional sizes.
  • the PVC pipes transmit little heat energy through their walls.
  • the PVC pipes can be in any length be cut so that an air guide box in a simple manner to the wall thicknesses of the respective building wall, in which it is to be installed, is adaptable.
  • the PVC pipes are corrosion-free and can easily be used with cement, silicone or gypsum in existing building walls.
  • the round tube cross-section makes it easy to cut accurately fitting holes with rotating tools in building walls. In this way, the air guide box according to the invention can also be retrofitted at any time in existing buildings with little effort. For the installation, it does not matter whether the relevant building wall has a single or multi-shell construction.
  • Fig. 1 is an air guide box 2 to see, which consists essentially of a fan tube 3 with a vent 4 and a closure, which consists essentially of an insulator 8 and a lid 10 is constructed.
  • a fan tube 3 with a vent 4 a vent 4
  • a closure which consists essentially of an insulator 8 and a lid 10 is constructed.
  • the respective components are clearly visible.
  • the fan tube 3 is shown as a round tube, but it may also have other suitable tube cross-sectional shapes, such as quadrangular, hexagonal, trapezoidal and the like.
  • the fan tube 3 can be inserted into a sufficiently large opening of a building wall.
  • the connection with a masonry as an example of a building wall can be done by cement or gypsum, which can be filled in the air gap between the outer surface of the fan tube 3 and the inner surface of the building wall opening.
  • adhesive bonds with adhesives, PU foam, silicone and the like are possible.
  • the fan tube 3 may have such lengths that it can be used in common building walls, or the fan tube 3 is supplied in excess and can be shortened by sawing the protruding part to a suitable length.
  • the fan tube 3 is made of a PVC material, but it can also be used as a material other plastic materials, metal, clay and the like.
  • Fig. 1 is in dashed. Lines indicated where the insulating body 8 is in the closed position of the shutter 6.
  • the length of the distance S, by which the shutter 6 is displaced from the open position to the closed position, is greater than the thickness D of the insulator 8.
  • Fig. 1 is clearly visible that the insulating body 8 is immersed as a thermal insulation of the shutter 6 with its entire thickness D in the closed position in the fan tube 3. Between the outside air and the remaining cavity in the fan tube 3 results in a highly effective thermal insulation, can be reduced by the heat losses through the shutter 6 to a minimum.
  • the open position of the closure 6 allows unimpeded outflow of the exhaust air from the and an unimpeded inflow of supply air in the air guide box 2. In this way, an excellent thermal insulation in conjunction with a minimum flow resistance against the respective air flows is realized.
  • the insulating body 8 can be inexpensively made of a polystyrene or PU foam material. These materials provide excellent thermal insulation properties while still being lightweight and cost effective. As insulator 8, however, can also be a plug be used, which has an inner provided with a vacuum insulating space. Other known solutions for thermal insulation can be realized in the insulating body 8.
  • the insulating body 8 has an outer shape, which is adapted to the cavity shape of the ventilation opening 4 and / or the fan tube 3 in the closed position of the insulating body 8 at least almost sealing. Due to the at least nearly sealed shape is avoided that occur laterally on the insulator 8 termeistichde air flows heat losses. However, the insulating body 8 with its shape may not sit too tightly in the closed position in the fan tube 3, as this would affect the opening and closing of the shutter 6 too much. Here a suitable compromise must be found. Alternatively or in addition to the almost sealing fit of the insulating body 8 may be provided with one or more sealing rubbers which slide on retraction and extension of the closure 6 on the inner surface of the fan tube 3 and sealing by a certain inherent flexibility both to the shape of the insulating.
  • the seals can be arranged on the insulating body 8 or in the inner wall of the fan tube 3.
  • the closure 6 has a cover 10 which protrudes laterally beyond the outer circumference of the insulating body 8 and also over the outer periphery of the end face of the fan tube 3.
  • the fan tube 3 can be sealed well in the closed position of the closure 8 to the outside.
  • the cover 10 is provided on the fan tube 3 side facing with a flexible support 20 such as a foam rubber pad. In the closed position of the closure 6, the cover 10 seals - possibly with the additional flexible support 20 - the fan tube 3 from wind, rainwater, dust, insects and other foreign matter, which can not penetrate into the fan tube 3.
  • the lid 10 may be provided with an attractive coating or paint, so that the air guide box 2 fits unobtrusively into the optical image of the surrounding building wall.
  • the visible in the known wall boxes air vents or slats omitted.
  • the fan tube 3 or the insulating body 8 are no longer visible in the closed position of the closure 6 because of the protruding lid 10. This results in an overall very attractive appearance of such air duct 2.
  • the closure 6 is adjustable by means of an adjusting mechanism 12 which is arranged in the ventilation opening 4 and / or in one of the ventilation opening 4 upstream pipe section of the fan tube 3.
  • the adjusting mechanism can be manually or motor-operated, in particular by an electric motor.
  • the adjusting mechanism 12 consists of a rotatably driven spindle tube, by the operation of the shutter 6 changes its spatial position.
  • Toggle mechanisms, telescopic tubes and the like can be realized as an actuating mechanism 12. Due to the arrangement of the actuating mechanism 12 in the ventilation opening 4 or in another pipe section of the fan tube 3, the installation dimension of the air duct 2 remains limited to the cross section of the fan tube 3 There are no separate space for the control mechanism 12 required to create the expensive and also against thermal To isolate losses.
  • seals against pressure losses of the flowing air streams are not required in this embodiment.
  • the actuating mechanism 12 By embedding the actuating mechanism 12 in the fan tube 3, these can hardly be damaged during transport and dismantling and is housed very protected.
  • the adjusting mechanism 12 In relation to the total cross-section of the fan tube 3, the adjusting mechanism 12 also takes only a small space, so that increased by the adjusting mechanism 12 of the flow resistance against the exhaust air flow not appreciable extent.
  • a drive or an adjusting mechanism can also be arranged outside of the fan tube 3.
  • a linkage 14 is present in the air guide box 2, which is designed so that it on the inner surface of the ventilation opening 4 and / or the vent 4 upstream pipe section 16 of the fan tube 3 at least slid in sections sliding.
  • the closure 6 is held by the support also stable in its open position, in which this may be exposed to high wind forces or a fire with a football under certain circumstances.
  • the construction of the air duct box 2 proves to be extremely reliable and robust against interference from external influences.
  • the linkage 14 may have a lattice structure 18 in a section through which, in an open position of the closure 6, the penetration of larger foreign bodies into the ventilation opening 4 is made more difficult.
  • the grid structure 18 is preferably arranged so that the closure effect with respect to the ventilation opening 4, in particular in the open position of the Closure 6 results.
  • the grid structure 18 may be formed so as to additionally stabilize the linkage 14.
  • the linkage 14 and the grid structure 18 should be designed so that they produce only the lowest possible flow resistance against a sweeping air flow. For this reason, the corresponding components should have only the smallest possible material thickness transverse to the flow direction of the air flow. A sufficient stability of the components can still be achieved by the material for the corresponding components is more arranged in a parallel extension to the flow direction of the guided through the fan tube 3 air flow.
  • the grid of the linkage 14 may be made for example of a galvanized steel or a tough plastic with, for example, only one millimeter material thickness, with the stability of the components of the several millimeters and possibly even centimeters wide webs results parallel to the flow direction of the air flow.
  • Is a motorized actuator for the displacement of the shutter 6 between an open and closed position present it is advantageous to combine the circuit with the circuit of the connected ventilation unit, as will be explained below using the example of a cooker hood.
  • About an electrical connection can be actuated with a switch arranged on the hood switch and the actuator. It is particularly favorable if the actuator can be actuated by the on / off switch of the extractor hood. In such an embodiment, it is possible to turn on by turning on the hood at the same time the servomotor, by which the shutter 6 is moved from the closed position to the open position.
  • the extractor hood can therefore always be operated with optimum performance.
  • a separate switch can be provided on the hood, through which the user can preselect and adjust the operating position of the shutter 6 separately.
  • the insulating body 8 has a conical or trapezoidal shape tapering towards the adjustment path.
  • the insulating body 8 has on its the fan tube 3 side facing a frusto-conical portion which automatically centers the insulator 8 at a run-up of the inclined surface of the end edges of the fan tube 3 and ensures a precisely fitting inlet into the vent opening 8. Even if, after prolonged use, individual mechanical components of the actuator or the adjusting mechanism should have a certain play, this can be compensated by the centering function of the inclined surfaces. In this way, a permanent reliability of the air duct 2 is ensured.
  • the fan tube 3 may have a corresponding shape design.
  • Fig. 2 is a view of an air guide box 2 with an open closure 6 shown. It is easy to see how the exhaust air in the open position of the closure 6 can escape laterally past this into the ambient air. Supply air can easily flow into the ventilation opening 4.
  • FIG. 3 the air guide box 2 is shown, in which the shutter 6 is in its closed position. In this view, it can be clearly seen that only the lid 10 of the closure is visible from the outside of the entire air guide box 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Paper (AREA)
  • Gas Separation By Absorption (AREA)
  • Glass Compositions (AREA)
  • Ventilation (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Thermal Insulation (AREA)

Abstract

The case has an opening (4) for supplying and discharging air, where the opening is sealable by a movable closure (6) from a closing position to an open position. The closure is provided with a thermal insulation, which is positionable in a section of air pipes (3) in the closing position of the closure and outside the air pipes in opening position of the closure. The thermal insulation consists of an insulating body.

Description

Die vorliegende Erfindung bezieht sich auf einen Luftführungskasten, insbesondere Mauerkasten, als Einsatz in eine Gebäudewandung mit einer Lüftungsöffnung für Zu- und/oder Abluft, die mittels eines von einer Schließstellung in eine Offenstellung beweglichen Verschlusses verschließbar ist.The present invention relates to an air duct box, in particular wall box, as an insert in a building wall with a ventilation opening for supply and / or exhaust air, which is closable by means of a movable from a closed position to an open position closure.

Vorgefertigte Mauerkästen zur Entlüftung von Gebäuden als eine Form der gattungsgemäßen Luftführungskästen sind in einer Vielfalt von Ausgestaltungen bekannt. Die Lüftungskästen werden benutzt, um in einer Gebäudewandung eine Öffnung zur Durchleitung von Zu- und/oder Abluft zu schaffen. Als Gebäudewandung kommt dabei nicht nur eine Mauer, sondern auch Dachflächen, Verglasungen, Isoliertafeln und Verkleidungen und dergleichen in Betracht. Die Möglichkeit zur Durchführung von Luftströmen durch die Gebäudewandung hindurch als Zu- oder Abluft kann sich aus unterschiedlichen Gründen ergeben, beispielsweise, um geruchsbelastete Abluft oder verbrauchte Raumluft abzuführen, oder um Frisch- oder Kühlluft in das Gebäude hineinzuführen.Prefabricated wall boxes for ventilation of buildings as a form of the generic air duct boxes are known in a variety of configurations. The ventilation boxes are used to create an opening in the wall of a building for the supply of incoming and / or exhaust air. As a building wall is not only a wall, but also roofs, glazings, insulated panels and panels and the like into consideration. The possibility of carrying air streams through the building wall through as incoming or outgoing air can result for different reasons, for example, to dissipate odorous exhaust air or used room air, or to introduce fresh or cooling air into the building.

Ein gattungsgemäßer Luftführungskasten ist beispielsweise in der Offenlegungsschrift DE 39 39 658 A1 offenbart. In diesem Luftführungskasten ist ein schwenkbar gelagerter Verschluß enthalten. Befindet sich dieser in seiner Schließstellung, kann keine Abluft mehr nach draußen und auch keine Zuluft mehr in das Lüfterrohr dringen. Durch den Verschluß des Luftführungskastens wird auf diese Weise insbesondere verhindert, daß mit der entweichenden Abluft auch ein Teil der Gebäudewärme verloren geht.A generic air duct box is for example in the published patent application DE 39 39 658 A1 disclosed. In this air guide box, a pivotally mounted closure is included. If this is in its closed position, no exhaust air can escape to the outside and no supply air can penetrate into the fan tube. By the closure of the air duct box is prevented in this way in particular that with the escaping exhaust air and a part of the building heat is lost.

Als nachteilig hat sich bei den bekannten Luftführungskästen jedoch erwiesen, daß die Verschlüsse nur über eine geringe thermische Dämmung verfügen. Auch wenn in der Schließstellung der Verschlüsse keine Warmluft mehr aus dem Gebäude austreten kann, überträgt der Verschluß selbst immer noch erhebliche Wärmemengen an die Außenluft. Auch sind die vorbekannten Luftführungskästen in geschlossener Stellung nicht immer dicht schließend, so daß immer noch Zugluft durch das Lüfterrohr in das Gebäude hinein oder aus dem Gebäude hinaus strömen kann.A disadvantage has been found in the known air duct boxes, however, that the closures have only a low thermal insulation. Even if warm air can no longer escape from the building in the closed position of the closures, the closure itself still transfers considerable amounts of heat to the outside air. Also, the prior art air duct boxes are not always tightly closed in the closed position, so that still drafts can flow through the fan tube into the building or out of the building.

Ein weiterer Nachteil der bekannten Luftführungskästen ist darin zu sehen, daß der Verschluß und die zugehörige. Verschlußmechanik dem Zu- beziehungsweise Abluftstrom einen erheblichen Strömungswiderstand entgegensetzen und dadurch die Durchsatzleistung von an den jeweiligen Luftführungskasten angeschlossenen Lüftereinheiten, wie beispielsweise Dunstabzugshauben, Wäschetrockner, Toilettenlüfter, Klimaanlagen, Wärmetauschern und dergleichen, erheblich beeinträchtigt wird.Another disadvantage of the known air duct boxes is the fact that the closure and the associated. Closure mechanics oppose the supply or exhaust air flow a significant flow resistance and thereby the throughput of connected to the respective air guide box fan units, such as cooker hoods, clothes dryers, Toilettenlüfter, air conditioners, heat exchangers and the like, is significantly affected.

WO 01/71261 beschreibt eine Ventilvorrichtung zur Steuerung des Luftstroms. Die Vorrichtung besteht aus einem zylindrischen Lüfterrohr, in dem einen ebenfalls zylindrische Hülse eingeschoben ist. Eine Scheibeneinheit mit einer Scheibe ist an einem Ende der Hülse angebracht, das sich außerhalb des Lüfterrohrs befindet. An diesem Ende weist die Hülse Schlitze auf, durch die Luft hindurchströmen kann. Die Scheibe ist mit einer schallabsorbierenden Fasermatte versehen und in der Hülse ist eine Filtervorrichtung zum Filtern von Schmutzpartikeln vorgesehen. WO 01/71261 describes a valve device for controlling the air flow. The device consists of a cylindrical fan tube, in which a likewise cylindrical sleeve is inserted. A disk unit with a disk is attached to one end of the sleeve, which is located outside of the fan tube. At this end, the sleeve has slots through which air can flow. The disc is provided with a sound-absorbing fiber mat and in the sleeve, a filter device is provided for filtering dirt particles.

DK 172353 beschreibt ein Lüftungsventil zur Aufnahme von Außenluft. Hierzu ragt ein feststehendes zylindrisches Lüfterrohr an der Außenseite einer Gebäudewand aus dieser heraus. In dem zylindrischen Lüfterrohr ist ein weiteres zylindrisches Rohr mit kieinerem Durchmesser verschiebbar gelagert, das auf seiner Innenseite mit einer Isolierung ausgekleidet ist. Das Ende des zylindrischen Lüfterrohrs, an dem die Außenluft aufgenommen wird, ist verschlossen und weist auf seiner Innenseite eine Endisolierung auf. Die Außenluft kann im geöffneten Zustand des Lüftungsventils über einen Schlitz einströmen, der in der Seitenwand des zylindrischen Lüfterrohrs vorgesehen ist. DK 172353 describes a ventilation valve for receiving outside air. For this purpose, a fixed cylindrical fan tube on the outside of a building wall protrudes out of this. In the cylindrical fan tube, another cylindrical tube is slidably mounted with kieinerem diameter, which is lined on its inside with an insulation. The end of the cylindrical fan tube, where the outside air is received, is closed and has on its inside an end insulation. The outside air can flow in the open state of the ventilation valve via a slot which is provided in the side wall of the cylindrical fan tube.

Demgemäß ist es die Aufgabe der vorliegenden Erfindung, einen Luftführungskasten zu schaffen, der einerseits über eine gute thermische Außendämmung verfügt und bei dem der Verschluß im Zu- oder Abluftbetrieb nur einen möglichst geringen Strömungswiderstand gegenüber dem Zu- oder Abluftstrom verursacht. Zudem sollte der Verschluß das Lüfterrohr in seiner Schließstellung möglich gut dichtend schließen.Accordingly, it is the object of the present invention to provide an air guide box, on the one hand has a good thermal external insulation and in which the closure in the supply or exhaust air operation causes only the lowest possible flow resistance to the supply or exhaust air flow. In addition, the closure should close the fan tube in its closed position possible good sealing.

Die Aufgabe wird durch einen Luftführungskasten gemäß Anspruch 1 gelöst, indem der Verschluß mit einer thermischen Isolierung versehen ist, die in der Schließstellung des Verschlusses in einem Abschnitt des Lüfterrohres und die in der Offenstellung des Verschlusses außerhalb des Lüfterrohrs positionierbar ist.The object is achieved by an air guide box according to claim 1, by the closure is provided with a thermal insulation, which is positionable in the closed position of the closure in a portion of the fan tube and in the open position of the closure outside the fan tube.

Durch die Kombination des Verschlusses mit einer thermischen isolierung wird das Potential für durch den Luftführungskasten verursachte Wärmeverluste erheblich verringert. Durch die Möglichkeit, die thermische Isolierung in der Offenstellung des Verschlusses in eine Position außerhalb des Lüfterrohrs zu verlagern, wird bei einer solchen Produktgestaltung der Strömungswiderstand durch die thermische Isolierung nicht erhöht. Trotz der thermischen Isolierung des Luftführungskastens für die Zeiträume, in denen keine Zu- oder Abluft durch den Luftführungskasten eingesogen oder ausgeblasen werden, wird die Durchsatzleistung der an den Luftführungskasten angeschlossenen Dunstabzugshaube während ihres Betriebs nicht nachteilig beeinflußt. Bei einer günstigen Gestaltung des Gestänges, von dem der Verschluß mit der thermischen Isolierung gehalten wird, ist es sogar möglich, den Strömungswiderstand des Luftführungskastens gegenüber hindurchströmender Zu- oder Abluft gegenüber den vorbekannten Luftführungskästen abzusenken. Durch den erfindungsgemäßen Luftführungskasten kann also die Absaugleistung eines angeschlossenen Lüftungsgerätes, wie beispielsweise einer Dunstabzugshaube, Wärmepumpe oder Klimaanlage, gesteigert werden.By combining the closure with a thermal insulation, the potential for heat losses caused by the air guide box is significantly reduced. The ability to move the thermal insulation in the open position of the closure in a position outside the fan tube, the flow resistance is not increased by the thermal insulation in such a product design. Despite the thermal insulation of the air duct box for the periods in which no supply or exhaust air are sucked in or blown out through the air guide box, the throughput of the connected to the air guide box hood during their operation is not adversely affected. With a favorable design of the linkage, of which the closure is held with the thermal insulation, it is even possible to lower the flow resistance of the air guide box against the incoming or exhaust air flowing through it compared to the previously known air duct boxes. By the air guide box according to the invention, therefore, the suction of a connected ventilation device, such as a hood, heat pump or air conditioning can be increased.

Der erfindungsgemäße Luftführungskasten kann kostengünstig hergestellt werden. So ist es möglich, das Lüfterrohr aus handelsüblichen PVC-Rohren herzustellen. Die PVC-Rohre können günstig und in vielen Querschnittsgrößen eingekauft werden. Die PVC-Rohre übertragen über ihre Wandungen nur wenig Wärmeenergie. Die PVC-Rohre können in beliebigen Län-gen geschnitten werden, so daß ein Luftführungskasten auf einfache Art und Weise an die Wandstärken der jeweiligen Gebäudewandung, in die er eingebaut werden soll, anpaßbar ist. Die PVC-Rohre sind korrosionsfrei und können leicht mit Zement, Silikon oder Gips in vorhandene Gebäudewandungen eingesetzt werden. Durch den runden Rohrquerschnitt ist es einfach, maßgenau passende Löcher mit rotierenden Werkzeugen in Gebäudewandungen zu schneiden. Auf diese Weise kann der erfindungsgemäße Luftführungskasten auch jederzeit in vorhandene Gebäude mit wenig Arbeitsaufwand nachträglich eingebaut werden. Für den Einbau spielt es keine Rolle, ob die betreffende Gebäudewandung ein- oder mehrschalig aufgebaut ist.The air guide box according to the invention can be produced inexpensively. So it is possible to produce the fan tube made of commercially available PVC pipes. The PVC pipes can be bought cheaply and in many cross-sectional sizes. The PVC pipes transmit little heat energy through their walls. The PVC pipes can be in any length be cut so that an air guide box in a simple manner to the wall thicknesses of the respective building wall, in which it is to be installed, is adaptable. The PVC pipes are corrosion-free and can easily be used with cement, silicone or gypsum in existing building walls. The round tube cross-section makes it easy to cut accurately fitting holes with rotating tools in building walls. In this way, the air guide box according to the invention can also be retrofitted at any time in existing buildings with little effort. For the installation, it does not matter whether the relevant building wall has a single or multi-shell construction.

Abwandlungen und vorteilhafte Ausgestaltungen der Erfindung lassen sich der nachfolgenden gegenständlichen Beschreibung, den Merkmalen der Unteransprüche und den beigefügten Zeichnungen entnehmen.Modifications and advantageous embodiments of the invention can be taken from the following objective description, the features of the subclaims and the accompanying drawings.

Die Erfindung soll nun anhand eines Ausführungsbeispieles näher erläutert werden. Es zeigen:

Fig. 1:
eine Ansicht auf einen in Längsrichtung aufgeschnittenen Luftführungskasten,
Fig. 2:
eine Ansicht eines Luftführungskastens mit geöffnetem Verschluß und
Fig. 3:
eine Ansicht eines Luftführungskastens mit geschlossenem Verschluß.
The invention will now be explained in more detail using an exemplary embodiment. Show it:
Fig. 1:
a view of a longitudinally cut air guide box,
Fig. 2:
a view of a air duct box with open lock and
3:
a view of a ventilation box with a closed closure.

In Fig. 1 ist ein Luftführungskasten 2 zu sehen, der im wesentlichen aus einem Lüfterrohr 3 mit einer Lüftungsöffnung 4 sowie einem Verschluß, der im wesentlichen, aus einem Isolierkörper 8 und einem Deckel 10 besteht, aufgebaut ist. In der in Fig. 1 zu sehenden Längsschnittansicht sind die jeweiligen Komponenten gut sichtbar.In Fig. 1 is an air guide box 2 to see, which consists essentially of a fan tube 3 with a vent 4 and a closure, which consists essentially of an insulator 8 and a lid 10 is constructed. In the in Fig. 1 To see longitudinal section view, the respective components are clearly visible.

Im Ausführungsbeispiel ist das Lüfterrohr 3 als Rundrohr gezeigt, es kann jedoch auch andere geeignete Rohrquerschnittsformen aufweisen, wie beispielsweise viereckig, sechseckig, trapezförmig und dergleichen. Das Lüfterrohr 3 kann in eine ausreichend große Öffnung einer Gebäudewandung eingesetzt werden. Die Verbindung mit einem Mauerwerk als Beispiel einer Gebäudewandung kann durch Zement oder Gips erfolgen, der in den Luftspalt zwischen der Außenoberfläche des Lüfterrohres 3 und der Innenfläche der Gebäudewandöffnung gefüllt werden kann. Auch Klebeverbindungen mit Klebern, PU-Schaum, Silikon und dergleichen sind möglich.In the embodiment, the fan tube 3 is shown as a round tube, but it may also have other suitable tube cross-sectional shapes, such as quadrangular, hexagonal, trapezoidal and the like. The fan tube 3 can be inserted into a sufficiently large opening of a building wall. The connection with a masonry as an example of a building wall can be done by cement or gypsum, which can be filled in the air gap between the outer surface of the fan tube 3 and the inner surface of the building wall opening. Also adhesive bonds with adhesives, PU foam, silicone and the like are possible.

Das Lüfterrohr 3 kann solche Längen aufweisen, daß es in gängige Gebäudewandungen einsetzbar ist, oder das Lüfterrohr 3 wird in Überlänge geliefert und kann durch Absägen des überstehenden Teiles auf eine passende Länge eingekürzt werden. In einer bevorzugten Ausgestaltung besteht das Lüfterrohr 3 aus einem PVC-Material, es können jedoch auch andere Kunststoffmaterialien, Metall, Ton und dergleichen als Werkstoff verwendet werden.The fan tube 3 may have such lengths that it can be used in common building walls, or the fan tube 3 is supplied in excess and can be shortened by sawing the protruding part to a suitable length. In a preferred embodiment, the fan tube 3 is made of a PVC material, but it can also be used as a material other plastic materials, metal, clay and the like.

Im Einbauzustand des Luftführungskastens 2 strömt in dem in Fig. 1 gezeigten Ausführungsbeispiel ein Abluftstrom in Blasrichtung B durch das Lüfterrohr 3 hindurch. An dem Ende, an dem im Ausführungsbeispiel die Abluft aus dem Lüfterrohr 3 austritt, befindet sich die Lüftungsöffnung 4. Von der Lüftungsöffnung 4 aus kann die Abluft an dem Verschluß 6 vorbeiströmen, wenn sich dieser in einer Offenstellung befindet. Abweichend vom Ausführungsbeispiel kann auch ein Zuluftstrom durch die Lüftungsöffnung 4 hindurch entgegen der Blasrichtung B in das Lüfterrohr 3 eingesogen oder eingeblasen werden.In the installed state of the air duct 2 flows in the in Fig. 1 shown embodiment, an exhaust air flow in the blowing direction B through the fan tube 3 therethrough. At the end at which exits the exhaust air from the fan tube 3 in the embodiment, there is the ventilation opening 4. From the vent 4, the exhaust air can flow past the closure 6, when it is in an open position. Deviating from the exemplary embodiment, a supply air flow through the ventilation opening 4 can be sucked in or blown against the blowing direction B into the fan tube 3.

In Fig. 1 ist in gestrichelten. Linien angedeutet, wo sich der Isolierkörper 8 in der Schließstellung des Verschlusses 6 befindet. Die Länge der Strecke S, um die der Verschluß 6 von der Offenstellung in die Schließstellung verlagerbar ist, ist größer als die Dicke D des Isolierkörpers 8. Durch diese Längenverhältnisse relativ zueinander wird sichergestellt, daß sich in der Offenstellung des Verschlusses 6 ein Abstandsspalt zwischen der Lüftungsöffnung 4 und dem Isolierkörper 8 ergibt, der das Maß A aufweist. Das Maß A sollte einen Mindestwert von 50 mm aufweisen, um einen Durchgangsspalt zwischen der Lüftungsöffnung 4 und dem Verschluß 6 zu schaffen, der keinen Strömungswiderstand gegen die Förderleistung der angeschlossenen Dunstabzugshaube aufbaut.In Fig. 1 is in dashed. Lines indicated where the insulating body 8 is in the closed position of the shutter 6. The length of the distance S, by which the shutter 6 is displaced from the open position to the closed position, is greater than the thickness D of the insulator 8. By these length ratios relative to each other ensures that in the open position of the shutter 6, a gap between the gap Ventilation opening 4 and the insulating body 8 results, which has the dimension A. The dimension A should have a minimum value of 50 mm to create a passage gap between the vent 4 and the shutter 6, which does not build up a flow resistance against the flow rate of the connected hood.

In Fig. 1 ist gut erkennbar, daß der Isolierkörper 8 als thermische Isolierung des Verschlusses 6 mit seiner gesamten Dicke D in der Schließstellung in das Lüfterrohr 3 eingetaucht ist. Zwischen der Außenluft und dem übrigen Hohlraum im Lüfterrohr 3 ergibt sich eine hochwirksame thermische Isolierung, durch die Wärmeverluste über den Verschluß 6 auf ein Minimum reduziert werden können. Andererseits erlaubt die Offenstellung des Verschlusses 6 ein ungehindertes Ausströmen der Abluft aus dem und ein ungehindertes Einströmen von Zuluft in den Luftführungskasten 2. Auf diese Weise wird eine hervorragende thermische Isolierung in Verbindung mit einem minimalen Strömungswiderstand gegen die jeweiligen Luftströme verwirklicht.In Fig. 1 is clearly visible that the insulating body 8 is immersed as a thermal insulation of the shutter 6 with its entire thickness D in the closed position in the fan tube 3. Between the outside air and the remaining cavity in the fan tube 3 results in a highly effective thermal insulation, can be reduced by the heat losses through the shutter 6 to a minimum. On the other hand, the open position of the closure 6 allows unimpeded outflow of the exhaust air from the and an unimpeded inflow of supply air in the air guide box 2. In this way, an excellent thermal insulation in conjunction with a minimum flow resistance against the respective air flows is realized.

Der Isolierkörper 8 kann kostengünstig aus einem Styropor- oder PU-Schaum-Werkstoff hergestellt werden. Diese Materialien bieten hervorragende Wärmedämmeigenschaften und sind trotzdem leicht und kostengünstig. Als Isolierkörper 8 kann jedoch auch ein Stopfen verwendet werden, der einen inneren mit einem Vakuum versehenen Isolierraum aufweist. Auch andere bekannte Lösungen für eine thermische Isolierung können in dem Isolierkörper 8 verwirklicht werden.The insulating body 8 can be inexpensively made of a polystyrene or PU foam material. These materials provide excellent thermal insulation properties while still being lightweight and cost effective. As insulator 8, however, can also be a plug be used, which has an inner provided with a vacuum insulating space. Other known solutions for thermal insulation can be realized in the insulating body 8.

Der Isolierkörper 8 weist eine äußere Form auf, die der Hohlraumform der Lüftungsöffnung 4 und/oder des Lüfterrohres 3 im Bereich der Schließstellung des Isolierkörpers 8 zumindest nahezu dichtend angepaßt ist. Durch die zumindest nahezu dichtende Form wird vermieden, daß durch seitlich am Isolierkörper 8 vorbeistreichende Luftströme Wärmeverluste auftreten. Allerdings darf der Isolierkörper 8 mit seiner Form auch nicht allzu stramm in der Schließstellung im Lüfterrohr 3 sitzen, da dies das Öffnen und Schließen des Verschlusses 6 zu sehr beeinträchtigen würde. Hier muß ein geeigneter Kompromiß gefunden werden. Alternativ oder ergänzend zur nahezu dichtenden Paßform kann der Isolierkörper 8 mit einem oder mehreren Dichtungsgummis versehen sein, die bei einem Ein- und Ausfahren des Verschlusses 6 über die Innenoberfläche des Lüfterrohres 3 gleiten und sich durch eine gewisse Eigenflexibilität dichtend sowohl an die Form des Isolierkörpers 8 wie auch an die Innenoberfläche des Lüfterrohres 3 anlegen können. Je nach Anzahl, Härte und Paßgenauigkeit der Dichtungen muß die Betätigbarkeit des Verschlusses 6 durch eine solche Abdichtung nicht schwerwiegend beeinträchtigt werden. Die Dichtungen können am Isolierkörper 8 oder in der Innenwandung des Lüfterrohres 3 angeordnet sein.The insulating body 8 has an outer shape, which is adapted to the cavity shape of the ventilation opening 4 and / or the fan tube 3 in the closed position of the insulating body 8 at least almost sealing. Due to the at least nearly sealed shape is avoided that occur laterally on the insulator 8 vorbeistreichende air flows heat losses. However, the insulating body 8 with its shape may not sit too tightly in the closed position in the fan tube 3, as this would affect the opening and closing of the shutter 6 too much. Here a suitable compromise must be found. Alternatively or in addition to the almost sealing fit of the insulating body 8 may be provided with one or more sealing rubbers which slide on retraction and extension of the closure 6 on the inner surface of the fan tube 3 and sealing by a certain inherent flexibility both to the shape of the insulating. 8 as well as the inner surface of the fan tube 3 can create. Depending on the number, hardness and accuracy of the seals, the operability of the closure 6 by such a seal must not be seriously affected. The seals can be arranged on the insulating body 8 or in the inner wall of the fan tube 3.

In dem in Fig. 1 dargestellten Ausführungsbeispiel verfügt der Verschluß 6 über einen Deckel 10, der seitlich über den Außenumfang des Isolierkörpers 8 und auch über den Außenumfang der Stirnseite des Lüfterrohres 3 hervorsteht. Durch den den Querschnitt des Lüfterrohres 3 übergreifenden Deckel 10 kann das Lüfterrohr 3 in der Schließstellung des Verschlusses 8 gut nach außen abgedichtet werden. In einer bevorzugten Ausgestaltung ist der Deckel 10 auf der dem Lüfterrohr 3 zugewandten Seite mit einer flexiblen Auflage 20 wie beispielsweise einer Moosgummiauflage versehen. In der Schließstellung des Verschlusses 6 dichtet der Deckel 10 - gegebenenfalls mit der zusätzlichen flexiblen Auflage 20 - das Lüfterrohr 3 gegen Wind, Regenwasser, Staub, Insekten und andere Fremdkörper ab, die nicht mehr in das Lüfterrohr 3 eindringen können. Der Deckel 10 kann mit einer ansprechenden Beschichtung oder Lackierung versehen sein, so daß sich der Luftführungskasten 2 unauffällig in das optische Bild der umgebenden Gebäudewand einpaßt. Die bei den vorbekannten Mauerkästen sichtbaren Lüftungsschlitze oder Lamellen entfallen. Auch das Lüfterrohr 3 oder der Isolierkörper 8 sind in der Schließstellung des Verschlusses 6 wegen des hervorstehenden Deckels 10 nicht mehr sichtbar. Somit ergibt sich eine insgesamt sehr ansprechende Optik eines solchen Luftführungskastens 2.In the in Fig. 1 illustrated embodiment, the closure 6 has a cover 10 which protrudes laterally beyond the outer circumference of the insulating body 8 and also over the outer periphery of the end face of the fan tube 3. By the cross-section of the fan tube 3 cross-cover 10, the fan tube 3 can be sealed well in the closed position of the closure 8 to the outside. In a preferred embodiment, the cover 10 is provided on the fan tube 3 side facing with a flexible support 20 such as a foam rubber pad. In the closed position of the closure 6, the cover 10 seals - possibly with the additional flexible support 20 - the fan tube 3 from wind, rainwater, dust, insects and other foreign matter, which can not penetrate into the fan tube 3. The lid 10 may be provided with an attractive coating or paint, so that the air guide box 2 fits unobtrusively into the optical image of the surrounding building wall. The visible in the known wall boxes air vents or slats omitted. Also, the fan tube 3 or the insulating body 8 are no longer visible in the closed position of the closure 6 because of the protruding lid 10. This results in an overall very attractive appearance of such air duct 2.

Der Verschluß 6 ist mittels einer Stellmechanik 12 verstellbar, die in der Lüftungsöffnung 4 und/oder in einem der Lüftungsöffnung 4 vorgeordneten Rohrabschnitt des Lüfterrohres 3 angeordnet ist. Die Verstellmechanik kann manuell oder motorisch, insbesondere elektromotorisch betätigbar sein. Im Ausführungsbeispiel besteht die Stellmechanik 12 aus einem drehbar angetriebenen Spindelrohr, durch dessen Betätigung der Verschluß 6 seine räumliche Lage verändert. Auch Kniehebelmechaniken, Teleskoprohre und dergleichen sind als Stellmechanik 12 realisierbar. Durch die Anordnung der Stellmechanik 12 in der Lüftungsöffnung 4 oder in einem anderen Rohrabschnitt des Lüfterrohres 3 bleibt das Einbaumaß des Luftführungskastens 2 auf den Querschnitt des Lüfterrohres 3 beschränkt Es sind keine gesonderten Bauräume für die Stellmechanik 12 erforderlich, die aufwendig zu schaffen und ebenfalls gegen thermische Verluste zu isolieren wären. Auch Abdichtungen gegen Druckverluste der hindurchströmenden Luftströme sind bei dieser Ausgestaltung nicht erforderlich. Durch die Einbettung der Stellmechanik 12 in das Lüfterrohr 3 kann diese beim Transport und Demontage auch kaum beschädigt werden und ist sehr geschützt untergebracht. Im Verhältnis zum Gesamtquerschnitt des Lüfterrohres 3 nimmt die Stellmechanik 12 auch nur einen geringen Bauraum ein, so daß sich durch die Stellmechanik 12 der Strömungswiderstand gegen den Abluftstrom auch nicht in nennenswerten Umfang erhöht. Ein Antrieb beziehungsweise eine Stellmechanik kann allerdings auch außerhalb des Lüfterrohres 3 angeordnet sein.The closure 6 is adjustable by means of an adjusting mechanism 12 which is arranged in the ventilation opening 4 and / or in one of the ventilation opening 4 upstream pipe section of the fan tube 3. The adjusting mechanism can be manually or motor-operated, in particular by an electric motor. In the exemplary embodiment, the adjusting mechanism 12 consists of a rotatably driven spindle tube, by the operation of the shutter 6 changes its spatial position. Toggle mechanisms, telescopic tubes and the like can be realized as an actuating mechanism 12. Due to the arrangement of the actuating mechanism 12 in the ventilation opening 4 or in another pipe section of the fan tube 3, the installation dimension of the air duct 2 remains limited to the cross section of the fan tube 3 There are no separate space for the control mechanism 12 required to create the expensive and also against thermal To isolate losses. Also, seals against pressure losses of the flowing air streams are not required in this embodiment. By embedding the actuating mechanism 12 in the fan tube 3, these can hardly be damaged during transport and dismantling and is housed very protected. In relation to the total cross-section of the fan tube 3, the adjusting mechanism 12 also takes only a small space, so that increased by the adjusting mechanism 12 of the flow resistance against the exhaust air flow not appreciable extent. However, a drive or an adjusting mechanism can also be arranged outside of the fan tube 3.

Um die Stellbewegung der Stellmechanik 12 auf den Verschluß 6 zu übertragen, ist im Luftführungskasten 2 ein Gestänge 14 vorhanden, das so gestaltet ist, daß es auf der Innenoberfläche der Lüftungsöffnung 4 und/oder dem der Lüftungsöffnung 4 vorgeordneten Rohr abschnitt 16 des Lüfterrohres 3 zumindest abschnittweise gleitend aufliegt. Durch die vorgeschlagene gleitende Auflage wird das Gestänge 14 und mittelbar auch der Verschluß 6 von den Innenflächen des Lüfterrohres 3 abgestützt. Bei einer Ortsverlagerung des Verschlusses 6 ergibt sich aus dieser Abstützung auch eine sichere Führung im Verlauf der Bewegung. Schließlich wird der Verschluß 6 durch die Abstützung auch stabil in seiner Offenstellung gehalten, in der dieser unter Umständen hohen Windkräften oder auch einem Beschuß mit einem Fußball ausgesetzt sein kann. Bei einer entsprechenden Auslegung des Gestänges 14 erweist sich die Konstruktion des Luftführungskastens 2 als außerordentlich funktionssicher und robust gegen Störungen durch Fremdeinwirkung.In order to transmit the adjusting movement of the actuating mechanism 12 to the shutter 6, a linkage 14 is present in the air guide box 2, which is designed so that it on the inner surface of the ventilation opening 4 and / or the vent 4 upstream pipe section 16 of the fan tube 3 at least slid in sections sliding. The proposed sliding support the rod 14 and indirectly and the shutter 6 is supported by the inner surfaces of the fan tube 3. With a displacement of the shutter 6 results from this support and a safe guidance in the course of movement. Finally, the closure 6 is held by the support also stable in its open position, in which this may be exposed to high wind forces or a fire with a football under certain circumstances. With a corresponding design of the linkage 14, the construction of the air duct box 2 proves to be extremely reliable and robust against interference from external influences.

Das Gestänge 14 kann in einem Abschnitt eine Gitterstruktur 18 aufweisen, durch die in einer Offenstellung des Verschlusses 6 das Eindringen größerer Fremdkörper in die Lüftungsöffnung 4 erschwert ist. Die Gitterstruktur 18 ist bevorzugt so angeordnet, daß sich die Verschlußwirkung hinsichtlich der Lüftungsöffnung 4 insbesondere in der Offenstellung des Verschlusses 6 ergibt. Die Gitterstruktur 18 kann so ausgebildet sein, daß sie das Gestänge 14 zusätzlich stabilisiert.The linkage 14 may have a lattice structure 18 in a section through which, in an open position of the closure 6, the penetration of larger foreign bodies into the ventilation opening 4 is made more difficult. The grid structure 18 is preferably arranged so that the closure effect with respect to the ventilation opening 4, in particular in the open position of the Closure 6 results. The grid structure 18 may be formed so as to additionally stabilize the linkage 14.

Das Gestänge 14 und die Gitterstruktur 18 sollten so konstruiert sein, daß sie nur einen möglichst geringen Strömungswiderstand gegen einen hindurchstreichenden Luftstrom erzeugen. Aus diesem Grund sollten die entsprechenden Bauteile quer zur Strömungsrichtung des Luftstroms nur eine möglichst geringe Materialdicke aufweisen. Eine ausreichende Stabilität der Bauteile kann trotzdem erreicht werden, indem das Material für die entsprechenden Bauteile mehr in einer parallelen Erstreckung zur Strömungsrichtung des durch das Lüfterrohres 3 hindurch geführten Luftstroms angeordnet ist. In dem in Fig. 1 dargestellten Ausführungsbeispiel können die Gitter des Gestänges 14 beispielsweise aus einem verzinkten Stahlblech oder einem zähen Kunststoff mit beispielsweise nur einem Millimeter Materialdicke hergestellt sein, wobei sich die Stabilität der Bauteile aus den mehrere Millimeter und eventuell sogar Zentimeter breiten Stegen parallel zur Strömungsrichtung des Luftstroms ergibt.The linkage 14 and the grid structure 18 should be designed so that they produce only the lowest possible flow resistance against a sweeping air flow. For this reason, the corresponding components should have only the smallest possible material thickness transverse to the flow direction of the air flow. A sufficient stability of the components can still be achieved by the material for the corresponding components is more arranged in a parallel extension to the flow direction of the guided through the fan tube 3 air flow. In the in Fig. 1 illustrated embodiment, the grid of the linkage 14 may be made for example of a galvanized steel or a tough plastic with, for example, only one millimeter material thickness, with the stability of the components of the several millimeters and possibly even centimeters wide webs results parallel to the flow direction of the air flow.

Ist ein motorischer Stellantrieb für die Verlagerung des Verschlusses 6 zwischen einer Offen- und Schließstellung vorhanden, ist es vorteilhaft, dessen Schaltung mit der Schaltung des angeschlossenen Lüftungsgerätes zu kombinieren, wie es nachfolgend am Beispiel einer Dunstabzugshaube erläutert wird. Über eine elektrische Verbindung kann mit einem an der Dunstabzugshaube angeordneten Schalter auch der Stellantrieb betätigt werden. Besonders günstig ist es, wenn der Stellantrieb durch den Ein-/Ausschalter der Dunstabzugshaube betätigbar ist. Bei einer solchen Ausgestaltung ist es möglich, durch ein Einschalten der Dunstabzugshaube gleichzeitig den Stellmotor einzuschalten, durch den der Verschluß 6 aus der Schließstellung in die Offenstellung bewegt wird. Durch die Koppelung der Inbetriebnahme der Dunstabzugshaube mit der Verlagerung des Verschlusses 6 in seine Offenstellung wird gewährleistet, daß die Dunstabzugshaube immer in Verbindung mit einem geöffneten Verschluß 6 betrieben wird. Die Dunstabzugshaube kann dadurch immer mit optimaler Leistung betrieben werden. Je nach dem, ob für die Schaltung analoge oder digitale Komponenten verwendet werden, ist es auch möglich, die Öffnungsweite des Verschlusses 6 in Abhängigkeit von der jeweils vorgewählten Gebläsestufe zu gestalten. So kann es ausreichen, den Verschluß nur in einem geringen Maß zu öffnen, wenn die Dunstabzugshaube nur auf einer niedrigen Gebläsestufe betrieben wird. Auch dadurch ist es möglich, Wärmeverluste des Gebäudes zu verringern. Natürlich kann an der Dunstabzugshaube auch ein separater Schalter vorgesehen sein, durch den der Benutzer die Betriebsstellung des Verschlusses 6 separat vorwählen und einstellen kann.Is a motorized actuator for the displacement of the shutter 6 between an open and closed position present, it is advantageous to combine the circuit with the circuit of the connected ventilation unit, as will be explained below using the example of a cooker hood. About an electrical connection can be actuated with a switch arranged on the hood switch and the actuator. It is particularly favorable if the actuator can be actuated by the on / off switch of the extractor hood. In such an embodiment, it is possible to turn on by turning on the hood at the same time the servomotor, by which the shutter 6 is moved from the closed position to the open position. By coupling the commissioning of the hood with the displacement of the shutter 6 in its open position ensures that the cooker hood is always operated in conjunction with an open shutter 6. The extractor hood can therefore always be operated with optimum performance. Depending on whether analog or digital components are used for the circuit, it is also possible to design the opening width of the shutter 6 as a function of the respective preselected fan stage. So it may be sufficient to open the shutter only to a small extent, when the hood is operated only at a low fan speed. This also makes it possible to reduce heat losses of the building. Of course, a separate switch can be provided on the hood, through which the user can preselect and adjust the operating position of the shutter 6 separately.

Bei dem in Fig. 1 dargestellten Ausführungsbeispiel erfolgt die Verstellbewegung des Verschlusses 6 zwischen der Schließstellung und der Offenstellung in einer geraden Linie. Eine solche Lösung läßt sich konstruktiv leicht darstellen und ist mechanisch wenig störungsanfällig. Auch ist das Risiko, daß sich die Mechanik durch in der Abluft befindliche Öle, Fette und Schmutzpartikel nach und nach zusetzt, auf ein Minimum reduziert.At the in Fig. 1 illustrated embodiment, the adjustment movement of the closure 6 between the closed position and the open position in a straight line. Such a solution can be structurally easily represented and is mechanically less prone to failure. Also, the risk of the mechanics gradually being obstructed by oils, fats and dirt particles in the exhaust air is reduced to a minimum.

Um sicherzustellen, daß bei einer Schließbewegung des Verschlusses der Isolierkörper 8 immer zuverlässig in die Lüftungsöffnung 4 hineingleitet, ist es vorteilhaft, wenn zumindest ein Seitenwandabschnitt des Verschlusses 6, insbesondere ein Abschnitt des Isolierkörpers 8, eine zum Verstellweg konisch oder trapezförmig zulaufende Form aufweist. In dem in Fig. 1 dargestellten Ausführungsbeispiel verfügt der Isolierkörper 8 an seiner dem Lüfterrohr 3 zugewandten Seite über einen kegelstumpfförmig ausgebildeten Abschnitt, der bei einem Auflaufen der Schrägfläche an die Stirnkanten des Lüfterrohres 3 den Isolierkörper 8 automatisch zentriert und für einen paßgenauen Einlauf in die Lüftungsöffnung 8 sorgt. Auch wenn nach längerem Gebrauch einzelne mechanische Komponenten des Stellantriebes oder der Stellmechanik ein gewisses Spiel aufweisen sollten, kann dieses durch die Zentrierfunktion der Schrägflächen ausgeglichen werden. Auf diese Weise wird eine dauerhafte Betriebssicherheit des Luftführungskastens 2 gewährleistet. Zusätzlich oder alternativ kann auch das Lüfterrohr 3 über eine entsprechende Formgestaltung verfügen.In order to ensure that the insulating body 8 always slides reliably into the ventilation opening 4 during a closing movement of the closure, it is advantageous if at least one side wall section of the closure 6, in particular a section of the insulating body 8, has a conical or trapezoidal shape tapering towards the adjustment path. In the in Fig. 1 illustrated embodiment, the insulating body 8 has on its the fan tube 3 side facing a frusto-conical portion which automatically centers the insulator 8 at a run-up of the inclined surface of the end edges of the fan tube 3 and ensures a precisely fitting inlet into the vent opening 8. Even if, after prolonged use, individual mechanical components of the actuator or the adjusting mechanism should have a certain play, this can be compensated by the centering function of the inclined surfaces. In this way, a permanent reliability of the air duct 2 is ensured. Additionally or alternatively, the fan tube 3 may have a corresponding shape design.

In Fig. 2 ist eine Ansicht auf einen Luftführungskasten 2 mit einem geöffnetem Verschluß 6 gezeigt. Es ist gut erkennbar, wie die Abluft in der Offenstellung des Verschlusses 6 seitlich an diesem vorbei in die Umgebungsluft austreten kann. Auch Zuluft kann leicht in die Lüftungsöffnung 4 einströmen.In Fig. 2 is a view of an air guide box 2 with an open closure 6 shown. It is easy to see how the exhaust air in the open position of the closure 6 can escape laterally past this into the ambient air. Supply air can easily flow into the ventilation opening 4.

In Fig. 3 ist der Luftführungskasten 2 gezeigt, bei dem sich der Verschluß 6 in seiner Schließstellung befindet. In dieser Ansicht ist gut erkennbar, daß von außen vom gesamten Luftführungskasten 2 nur der Deckel 10 des Verschlusses sichtbar ist.In Fig. 3 the air guide box 2 is shown, in which the shutter 6 is in its closed position. In this view, it can be clearly seen that only the lid 10 of the closure is visible from the outside of the entire air guide box 2.

Die Beschreibung der Erfindung anhand des Ausführungsbeispiels diente nur Erläuterungszwecken und soll die erfindungsgemäßen Merkmale in keiner Weise auf die gezeigten Ausführungsbeispiele beschränken. Vielmehr ist es so, daß der Fachmann die erfindungsgemäßen Merkmale abweichend von Ausführungsbeispiel in einer ihm als geeignet erscheinenden Weise abwandeln kann, ohne sich deshalb vom Gegenstand der vorliegenden Erfindung zu lösen.The description of the invention with reference to the embodiment was for illustrative purposes only and is not intended to limit the inventive features in any way to the embodiments shown. Rather, it is the case that the person skilled in the art can modify the features according to the invention differently from the exemplary embodiment in a manner which appears to him suitable, without, therefore, departing from the subject matter of the present invention.

Claims (11)

  1. Air vent (2) as an insert in a wall of a building and for exhausting outgoing air from a building, or for supplying fresh air into a building, wherein the air vent comprises:
    an air duct (3), having at one end a ventilation opening (4) through which the outgoing air to be exhausted can flow out of a building through the air duct, and through which fresh air from outdoors can flow into the air duct;
    a movable closure (6), which has a cap (10) with an inner side facing the ventilation opening (4) and an insulating body (8) that is connected to the cap (10) on the inner side thereof; and
    an actuating mechanism (12), coupled to the closure (6), for moving the closure (6) from its closed position to an open position, and conversely from the open position to the closed position;
    wherein, in the closed position of the closure (6), the cover (10) seals the ventilation opening (4) and the insulating body (8) is located inside the air duct (3), and
    wherein, in the open position of the closure (6), the insulating body (8) is located outside the air duct (3); and
    wherein the length of the path (S), along which the closure (6) can be moved from the closed position to the open position, is greater than the longitudinal extent (D) of the insulating body (8) along the longitudinal axis of the air duct (3).
  2. Air vent (2) according to claim 1, wherein the shape of the insulating body (8) is matched to the shape of the ventilation opening (4) and/or of the air duct (3) such that it virtually forms a seal.
  3. Air vent (2) according to claim 1 or 2, wherein the inner side of the cap (10) projects laterally over the outer circumference of the insulating body (8).
  4. Air vent (2) according to claim 3, wherein the inner side of the cap (10) is provided with a flexible overlay (20) on the projecting surface.
  5. Air vent (2) according to any one of the preceding claims, wherein the actuating mechanism (12) is located in a duct section (16) of the air duct (3) ahead of the ventilation opening.
  6. Air vent (2) according to claim 5, wherein the closure (6) is connected with the actuating mechanism (12) by a rod assembly (14) that is designed such that it rests in a sliding manner, at least partially, on the inner surface of the ventilation opening (4) and/or in a duct section (16) of the air duct (3) ahead of the ventilation opening (4).
  7. Air vent (2) according to claim 6, wherein the rod assembly (14) has, in one section, a grid structure (18) by means of which the entry of relatively large foreign objects through the ventilation opening (4) is impeded in an open position of the closure (6).
  8. Air vent (2) according to any one of the preceding claims, wherein the actuating mechanism (12) comprises a motorized actuating drive.
  9. Air vent (2) according to claim 8, wherein the motorized actuating drive can be operated by means of an electrical connection to a switch located in an exhaust hood.
  10. Air vent (2) according to any one of the preceding claims, wherein the displacement motion between the closed position and the open position takes place along a straight line.
  11. Air vent (2) according to any one of the preceding claims, wherein at least a section of the insulating body (8) is designed to be conical or trapezoidal.
EP06754721A 2005-07-12 2006-07-12 Air guide box Active EP1902258B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06754721T PL1902258T5 (en) 2005-07-12 2006-07-12 Air guide box

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005010912U DE202005010912U1 (en) 2005-07-12 2005-07-12 Air guiding case for use in building wall, has opening sealable by closure provided with thermal insulation, which is positionable in section of air pipes in closing position of closure and outside pipes in opening position of closure
PCT/EP2006/006828 WO2007006568A1 (en) 2005-07-12 2006-07-12 Air guide box

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EP1902258A1 EP1902258A1 (en) 2008-03-26
EP1902258B1 true EP1902258B1 (en) 2009-10-28
EP1902258B2 EP1902258B2 (en) 2012-09-05

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EP06754721A Active EP1902258B2 (en) 2005-07-12 2006-07-12 Air guide box

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EP (1) EP1902258B2 (en)
AT (1) ATE447146T1 (en)
AU (1) AU2006268849A1 (en)
DE (2) DE202005010912U1 (en)
DK (1) DK1902258T4 (en)
ES (1) ES2335689T5 (en)
PL (1) PL1902258T5 (en)
PT (1) PT1902258E (en)
RU (1) RU2008105049A (en)
WO (1) WO2007006568A1 (en)

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DE102006053208B4 (en) 2006-11-11 2009-09-03 Naber Holding Gmbh & Co. Kg wall box
DE102006056266B4 (en) 2006-11-27 2012-12-13 Miele & Cie. Kg Vapor extraction device with non-return valve pivotally mounted in the exhaust duct
DE102007040632A1 (en) 2007-08-27 2009-03-05 Özpolat, Ilgas, Dipl.-Ing. wall box
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DE202009012561U1 (en) 2009-09-17 2011-02-03 Weibel, Matthias Shut-off device for a ventilation opening in a building wall
EP2570742B1 (en) 2011-09-14 2017-11-15 Miele & Cie. KG Air channel for installation in wall
CN107914859B (en) * 2017-11-15 2024-07-02 广州船舶及海洋工程设计研究院(中国船舶集团有限公司第六〇五研究院) Ventilation structure of offshore unmanned equipment
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Also Published As

Publication number Publication date
EP1902258A1 (en) 2008-03-26
ES2335689T5 (en) 2012-11-21
EP1902258B2 (en) 2012-09-05
DK1902258T3 (en) 2010-03-15
PL1902258T5 (en) 2013-01-31
RU2008105049A (en) 2009-08-20
ES2335689T3 (en) 2010-03-31
ATE447146T1 (en) 2009-11-15
PL1902258T3 (en) 2010-03-31
DK1902258T4 (en) 2012-10-15
PT1902258E (en) 2010-02-03
WO2007006568A1 (en) 2007-01-18
DE202005010912U1 (en) 2005-11-10
AU2006268849A1 (en) 2007-01-18
DE502006005256D1 (en) 2009-12-10

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