EP3623715A2 - Système de boites murales pour un système d'aération - Google Patents

Système de boites murales pour un système d'aération Download PDF

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Publication number
EP3623715A2
EP3623715A2 EP19194139.2A EP19194139A EP3623715A2 EP 3623715 A2 EP3623715 A2 EP 3623715A2 EP 19194139 A EP19194139 A EP 19194139A EP 3623715 A2 EP3623715 A2 EP 3623715A2
Authority
EP
European Patent Office
Prior art keywords
flap
wall box
assembly
assemblies
flaps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19194139.2A
Other languages
German (de)
English (en)
Other versions
EP3623715A3 (fr
Inventor
Martin Adlmaier
Siegfried Gößler
Anja Immerz
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3623715A2 publication Critical patent/EP3623715A2/fr
Publication of EP3623715A3 publication Critical patent/EP3623715A3/fr
Withdrawn legal-status Critical Current

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0254—Ducting arrangements characterised by their mounting means, e.g. supports
    • 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
    • F24F13/0272—Modules for easy installation or transport
    • 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
    • F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
    • 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
    • F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
    • E04B1/7076—Air vents for walls
    • 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
    • F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
    • 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
    • F24F13/0263—Insulation for air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/17—Details or features not otherwise provided for mounted in a wall

Definitions

  • the invention relates to a wall box system for a ventilation system.
  • the invention further relates to a wall box.
  • the invention relates to a ventilation system and the arrangement of a wall box in an outer wall of a building.
  • Wall boxes are used in particular for the ventilation of kitchens using an extractor hood or for controlled ventilation in the living area.
  • a wall box is for example from the DE 10 2014 113 210 A1 known.
  • Extractors for extracting cooking fumes are, for example, in the DE 20 2007 000 610 U1 and the DE 20 2011 005 698 U1 described.
  • the essence of the invention is to modularly design a wall box system.
  • the wall box system comprises one or more modular modules, which can be combined with one another in different ways.
  • the wall box system can be easily expanded.
  • requirements not yet known or not yet recognized can also be taken into account.
  • Different assemblies of the wall box system can be connected to one another in any order.
  • some of the various assemblies in particular one or more housing assemblies and one or more flap assemblies, can be connected to one another in any order. All different assemblies can also be connected to one another in any order.
  • the wall box system enables the creation of different wall boxes not only through a selection of different modules, but also through their respective arrangement.
  • the resulting wall box can be adapted particularly well and easily to the respective circumstances and / or requirements.
  • the different assemblies can in particular be connected to one another in any order along a flow direction of an air stream through the wall box to be created.
  • the connectivity of different assemblies in any order can be brought about, for example, by the fact that the respective assemblies can be plugged into one another.
  • the connectivity of different assemblies in any order can be ensured in particular by respective corresponding connecting sections, in particular connecting sections arranged at the end in the flow direction, of the different assemblies.
  • each of the different assemblies that can be connected in any order can have at least one connecting element on a first end face and at least one corresponding counter-connecting element on a second end face opposite the first end face.
  • the at least one connecting element of a first assembly can be connected to the at least one counter-connecting element of a second, different assembly.
  • the at least one connecting element of the second assembly can be connected to the at least one counter-connecting element of the first assembly become.
  • the connecting elements and the counter-connecting element can be designed, for example, as external threads or internal threads.
  • the connecting elements and the counter-connecting elements are preferably designed as latching elements for mutual latching.
  • the wall box system comprises assemblies which are selected from the following list: at least one panel assembly, at least one filter assembly, at least one electrical assembly, at least one insulation assembly, at least one locking assembly, at least a housing assembly, at least one flap assembly, at least one installation aid assembly, at least one cover assembly, at least one connection assembly and at least one adapter assembly.
  • the different modules can in particular have different functions.
  • the at least one panel assembly is used in particular for veneering the wall box, in particular on the outside of a building.
  • the panel assembly can be designed as a sandwich component.
  • it can have a plastic screen as the carrier element.
  • it can comprise a stainless steel screen as a screen.
  • the panel assembly can in particular be connected to the housing assembly and / or the flap assembly, in particular connected in a flow-tight manner. In particular, it can be latched to the housing assembly and / or the flap assembly. This is explained in more detail below.
  • the at least one housing assembly serves in particular as a wall duct.
  • it can have a circular or at least substantially circular flow cross section and / or outer diameter. It can thus be easily arranged in a core hole.
  • the wall box system preferably comprises a plurality of housing assemblies with different installation lengths. This is advantageous for the production of different wall boxes for different wall thicknesses.
  • the at least one flap assembly comprises at least one flap arrangement for reversibly closing a flow area.
  • the flap arrangement serves in particular as a valve, in particular as a flap or check valve.
  • the flap assembly comprises a housing assembly with one or more flap arrangements arranged therein.
  • the valve assembly can be converted to a housing assembly by removing the valve assemblies.
  • the flap assembly is described in more detail below.
  • a filter assembly is used to filter certain substances.
  • it comprises one or more filter elements. This can be particularly advantageous if the wall box is intended for special applications, in particular for guiding exhaust air with special impurities.
  • An electrical assembly can have electrical connections and / or components.
  • an electrical assembly can comprise lighting, a camera, a transmitting and / or receiving device or other electrical or electronic components.
  • An insulation assembly is used to improve the insulation properties of the wall box. It can in particular be arranged on the circumference of a housing and / or flap assembly.
  • a locking assembly is used to lock out vermin. With the help of a locking assembly, the penetration of insects and / or rodents into the ventilation system can be prevented in particular.
  • the at least one installation aid module serves to facilitate the installation of the wall box in a wall, in particular an outer wall of a building.
  • it can have installation aids, for example support elements for supporting a spirit level, which facilitate the alignment of the wall box during installation.
  • the at least one cover assembly is used to cover an assembly arranged in a wall during a shell construction phase. With the help of the cover assembly, it can be prevented that the wall box is dirty by plastering or painting work or the like.
  • the cover assembly can in particular prevent damage to the wall box or its components.
  • the cover assembly can be removed after construction is complete. In particular, it can be replaced by a panel assembly.
  • the at least one connection module is used to connect a ventilation duct, in particular a ventilation pipe.
  • a ventilation duct in particular a ventilation pipe.
  • it can serve as a transition element between duct or pipe elements with different inside or outside diameters.
  • the wall box system has at least one housing assembly with a housing delimiting an interior space with an inlet for an air flow and an outlet for an air flow. It was recognized that it is advantageous to reduce the flow resistance, if for an area A of the cross-section of the interior perpendicular to the direction of flow: A / K> 2 / ⁇ , where K indicates an area of a single circle with the smallest possible radius that completely covers the cross-section of the interior.
  • the housing assembly has in particular a circular interior cross section.
  • the housing assembly can have an interior cross-section approximated to a circular shape, in particular a polygonal interior cross-section with at least 5, in particular at least 6, in particular at least 8 corners.
  • the corners can each be rounded.
  • the stability, in particular the bending stiffness, of the housing assembly can be improved by a polygonal design of the interior cross section.
  • the cross section of the interior can be constant or vary along the flow direction.
  • the cross-section fulfills the condition according to equation (1), whereby the exact value of A / K can vary.
  • the enveloping circle completely covers the cross-sectional interior. The following applies: 1 ⁇ A / K.
  • the area K of the enveloping circle therefore represents an upper limit for the area A of the cross section of the interior.
  • the area K of the circle thus represents the largest possible cross-sectional area for a given maximum diameter of the interior of the wall box .
  • the condition A / K 2nd / ⁇ ⁇ 0 , 6367 applies to a square cross section.
  • the cross section of the interior deviates from a simple, essentially rectangular shape.
  • the cross section has an enlarged area A compared to a rectangle.
  • An outer contour of the housing can deviate from the cross-sectional contour of the interior.
  • the outer contour of the housing preferably corresponds essentially to the cross-sectional contour of the interior.
  • the housing can have a constant wall thickness along the circumference of a housing cross section. This ensures small external dimensions of the wall box based on the area A of the cross section of the interior.
  • An outer contour of the housing which essentially corresponds to the cross-sectional contour of the interior also has the advantage that a surface of a circle which envelops the housing is largely filled. Suitable wall thicknesses are, for example, between 1 mm and 30 mm, in particular they are at most 20 mm, in particular at most 10 mm, in particular at most 5 mm, preferably about 2.5 mm.
  • a wall breakthrough necessary for installing the wall box in the masonry can thus be carried out in a simple manner with a core hole.
  • the wall box is easy to assemble.
  • the wall box largely fills a cross-section of the core hole.
  • Small wall breakthroughs can therefore be provided, taking into account the cross-section of the interior space that is available for ventilation.
  • the diameter of the wall opening exceeds the maximum diameter of the wall box by a maximum of 30%, in particular a maximum of 25%, preferably a maximum of 20%, particularly preferably a maximum of 15%.
  • the assembly of the wall box is simple and effective. Elaborate fitting of the wall box into the wall opening is avoided.
  • the insulation required to insulate the wall opening is reduced.
  • a cross section of the inlet can have any shape.
  • the shape of the cross section of the inlet preferably corresponds to the shape of the cross section of a ventilation pipe to be connected to the wall box, for example a ventilation duct, in particular a flat duct, or preferably a round pipe.
  • the cross section of the inlet particularly preferably essentially corresponds to the cross section of the interior.
  • the cross section of the outlet may differ from the cross section of the inlet and / or the cross section of the interior.
  • the cross section of the outlet can in particular be enlarged compared to the cross section of the inlet.
  • the cross sections of the outlet and the inlet preferably have the same shape.
  • the wall box system has at least one flap assembly with at least one flap arrangement, a flap pivotably arranged on a suspension being designed such that it has a flap contour, at least in the open position, which has a cross-section -Contour of the interior is adjusted.
  • the flap is in particular designed in such a way that, in the open position, it lies at least in regions, preferably over its entire surface, on the housing of the flap assembly.
  • the flap can in particular come to rest flat against the inner wall of the housing of the flap assembly. This leads to particularly favorable fluid mechanical properties.
  • the adaptation of the flap contour enables the flap to be easily pivoted from the closed position into the open position and back even in an interior space that differs from a rectangular cross section.
  • the flap of the at least one flap arrangement it is possible for the flap of the at least one flap arrangement to be largely pivoted out of the flow area in the open position. This prevents the flap of the at least one flap arrangement in the open position from being completely or substantially within the flow area.
  • a flow resistance caused by the at least one valve arrangement, in particular the valve of the at least one valve arrangement is reduced. This improves the fluid dynamics of the air flow in the wall box. Annoying noises caused by the air flow when the flap flows around the at least one flap arrangement are reduced. The flow resistance of the wall box in the open position is further reduced.
  • the flap of the at least one flap arrangement Since the cross-sectional contour of the interior deviates from a simple rectangular shape, the flap of the at least one flap arrangement, at least in the open position, does not have a simple flap contour, but a three-dimensional flap contour.
  • the flap of the at least one flap arrangement is in particular not flat or plate-shaped, at least in the open position. Because of the three-dimensional flap contour, the flap has an expansion in a contour direction, at least in the open position.
  • the contour direction is perpendicular to both the longitudinal direction of the flap and the pivot axis.
  • the pivot axis, the longitudinal direction and the contour direction span an orthogonal coordinate system, with respect to which the contour and shape of the flaps can be measured. This coordinate system is fixed with respect to the respective flap and is pivoted with the flap.
  • the expansion of the flap contour in the direction of the contour direction can be, for example, at least 5%, in particular at least 10%, in particular at least 20%, in particular at least 30%, in particular at least 40%, preferably at least 45% of the maximum expansion of the flap in the longitudinal direction.
  • the flap of the at least one flap arrangement can be flexible or articulated.
  • the flexible or articulated flap can be pressed against the inside of the housing when pivoting into the open position, so that the flap contour is adapted to the cross-sectional contour of the interior.
  • a stop is preferably provided which prevents the flap from striking the inside of the housing.
  • the stop can be provided in particular in the axle mount. By means of a stop, it is in particular possible to limit the pivoting angle of the flap to less than 90 °.
  • Such a stop can reliably prevent the flap from being pressed against the inside of the housing and then remaining in the open state due to adhesion or mechanical deformation, even when there is no air flow.
  • the flap parts can be pivoted automatically against one another when pivoting into the open position.
  • the flap is preferably rigid or dimensionally stable. This means that the flap is contoured permanently, i.e. regardless of a pivoting position of the flap. This increases the stability and durability of the flap as well as the reliability when opening and closing the flap.
  • the flap is also easy and inexpensive to manufacture.
  • the flap contour is preferably adapted to the cross-sectional contour such that the flap of the at least one flap arrangement lies flush with the cross-sectional contour in the closed position, in particular flush against the entire cross-sectional contour.
  • the sealing effect of the closed position is thus ensured regardless of projections, sealing means and the like. Eliminating protrusions against which the flaps could rest improves the flow properties. In addition, no dirt can accumulate behind the projections.
  • the flap can have two contour wings that extend in the contour direction.
  • in particular rounded contour edges can be formed on the flap, so that despite the sealing effect there is sufficient play for the flap to be pivoted easily, in particular without friction.
  • the wall box system comprises at least one flap assembly with two adjacent flap arrangements, the distance between the pivot axes of the adjacent flap arrangements being at least so large that the flaps have no overlap in the flow direction in the open position.
  • the at least one flap arrangement can comprise a plurality of flaps.
  • the flaps of a flap arrangement can in particular be arranged next to one another along a common pivot axis or opposite one another with respect to the cross section of the interior.
  • the at least one flap arrangement preferably has exactly one flap. This ensures an uncomplicated assembly of the flap assembly. In addition, the risk of snagging when pivoting several flaps of the at least one flap arrangement is avoided.
  • the flap of the at least one flap arrangement has a longitudinal direction.
  • the longitudinal direction of the flap is defined as the direction perpendicular to the swivel axis in which the flap has the largest extent measured perpendicular to the swivel axis.
  • the longitudinal direction of the flap therefore corresponds to the largest diameter of the flap running perpendicular to the pivot axis.
  • the longitudinal direction runs independently of a pivoting position of the flap perpendicular to the pivot axis.
  • the flap of the at least one flap arrangement has an orientation.
  • the orientation is defined as the plane spanned by the longitudinal direction of the flap and a straight line running parallel to the pivot axis. The orientation of the flap changes with the pivoting of the flap.
  • the flap has different orientations in the closed position and in the open position.
  • the flap closes the at least one flap arrangement and the flow area, in particular the entire interior of the housing, in the area of the at least one flap arrangement, in particular gas-tight.
  • direct air exchange between the inlet and the outlet is consistently prevented.
  • the direct exchange of air between an outside and an inside of a building by the wall box is prevented.
  • an air flow against the flow direction, that is from the outlet to the inlet is thus prevented.
  • the orientation of the flap and thus also its longitudinal direction can be essentially perpendicular to the direction of flow.
  • At least two flap assemblies can be arranged one behind the other in the flow direction.
  • the at least two flap assemblies are directly behind one another and / or by one or several housing assemblies can be arranged connected one behind the other.
  • This also leads to a standing air column being formed as an insulation cushion between the two flaps in a closed position.
  • the insulation pad can be formed without increasing the length of the respective flap assemblies and / or their respective number of flap arrangements. The insulation properties of the wall box and its length can be flexibly adjusted.
  • At least one flap assembly has at least one flap with an insulation layer. This also improves thermal insulation.
  • the heat transfer coefficient (U value) is reduced.
  • a flap assembly with a single flap can have a U-value of less than 4 W / mK, in particular a U-value of less than 3 W / mK.
  • a flap assembly with two flaps has a U-value of less than 3 W / mK, in particular less than 2 W / mK.
  • the one or more housing assemblies and the one or more flap assemblies can be connected to one another in any order.
  • the assemblies have latching elements for mutual latching.
  • the assemblies preferably each have a symmetry-breaking element in a latching section. In this way, incorrect assembly of the modules can be reliably prevented.
  • the symmetry-breaking element can be designed, for example, according to the Poka Yoke principle.
  • the number of different relative positions of adjacent assemblies in the locked state can be reduced to a finite number, in particular to one, two or four different positions, in flap assemblies preferably to a single position.
  • different assemblies can be connected to one another in a flow-tight manner.
  • One or more sealing means for example a sealing cord and / or a foamed seal, in particular an EPDM seal (ethylene-propylene-diene rubber seal) can be provided for sealing interconnected assemblies.
  • EPDM seal ethylene-propylene-diene rubber seal
  • the different modules can be plugged into one another in particular.
  • they can be put together to form a wall box.
  • the wall box is stable.
  • the modules are particularly secured against unintentional separation from one another. This can be ensured, for example, using the locking elements.
  • the assemblies can be glued or welded or pressed together. They can also be positively connected to one another.
  • a secure connection, in particular a seal of the connection between adjacent assemblies, can also be achieved by additional elements, for example a connecting strap, connecting hoses or by means of an adhesive tape.
  • the flap of the at least one flap arrangement can be pivoted purely mechanically from the closed position into the open position.
  • the use of, for example, electrical control of the flap is avoided.
  • This has the advantage of simple and fail-safe functioning of the wall box.
  • the wall box is characterized by a currentless function. Error-prone electric motors and / or tilting devices, in particular tilting devices between the electric motors and the flap, are not required.
  • the mechanical pivotability of the flap of the at least one flap arrangement can be arranged, for example, on the at least one flap arrangement Springs, in particular by loop springs or spiral springs in the area of the suspensions, can be realized.
  • the flap of the at least one flap arrangement can preferably be pivoted purely passively. This is understood to mean that the flap can be pivoted out of the closed position solely on account of an air flow flowing in the direction of flow.
  • the flap can be pivoted in particular without support from electrical and / or mechanical aids. This ensures an inexpensive construction of the wall box with high reliability.
  • the flap can only be pivoted out of the closed position if a flow pressure of the air flow in the flow direction exceeds a predetermined opening pressure. This ensures that the flaps are not pivoted out of the closed position if the flow air flow in the flow direction is less than the flow pressure.
  • the flaps can have the functionality of a check valve. This ensures that the wall box only allows air flows in the direction of flow. An air flow against the flow direction is reliably prevented.
  • the opening pressure is between 60 Pa and 90 Pa, in particular between 65 Pa and 75 Pa. This prevents accidental opening of the flaps.
  • the wall box fulfills the so-called "blower door test", which requires tightness with a draft of 60 Pa. At the same time, the maximum opening pressure of 90 Pa is low enough to avoid overloading a previous ventilation system, particularly a blower.
  • the flaps have an adjustable opening pressure.
  • the opening pressure can be adjusted in particular in a simple manner by adjusting the relative position of a magnet and a threaded pin interacting therewith.
  • the flap of the at least one flap arrangement can also be pivoted from the open position into the closed position in a purely mechanical, in particular purely passive, manner. This can be done, for example, due to gravity.
  • the center of gravity of the flap of the at least one flap arrangement can be shifted relative to a surface formed by the pivot axis and the direction of gravity. This can be accompanied by the fact that the orientation of the flap of the at least one flap arrangement in the closed position is inclined by an angle with respect to a direction of gravity. This can be achieved in that the flap rests against a projection in the closed position. This ensures that the flap remains in the closed position solely due to its own weight.
  • the pivot axis of the at least one flap arrangement is aligned horizontally and arranged in an upper half of the cross section.
  • the upper half of the cross-section here is half of the cross-section which, when the wall box is provided, is above the center of gravity of the cross-section of the interior with respect to the direction of gravity.
  • Such an arrangement of the pivot axis enables the flap of the at least one flap arrangement to be pivoted back from the open position into the closed position solely on the basis of gravity. This ensures simple and reliable, purely passive pivoting of the flap of the at least one flap arrangement from the open position to the closed position, in particular as soon as the flow pressure of an air stream drops below the opening pressure.
  • the horizontally oriented pivot axis is preferably arranged in the upper third of the cross section, particularly preferably in the upper quarter of the cross section.
  • the flap of the at least one flap arrangement is preferably balanced with respect to the pivot axis. This further increases the pivotability of the flap.
  • the flap can be balanced such that a center of gravity of the flap with respect to the pivot axis has a lever arm that is at most 25%, in particular is at most 10%, in particular at most 1% of an expansion of the flap measured perpendicular to the respective pivot axis. This ensures that the flap can be pivoted with a low torque. In particular, it can be achieved that the flap is always pivoted into an open position with an orientation parallel to the flow direction when an air flow in the flow direction exceeds the opening pressure.
  • the balancing can be effected, for example, by arranging suitable counterweights, in particular above the pivot axis.
  • the pivot axis of the at least one flap arrangement is arranged on an upper edge of the flow area or above it.
  • a pivot axis arranged at the upper edge of the flow area or above advantageously ensures that no component of the associated flap arrangement located in the flow area is pivoted against the air flow.
  • the air flow does not prevent simple pivoting about the pivot axis. This improves the functionality and dynamics of the at least one valve arrangement.
  • the corresponding suspension is arranged outside the flow area.
  • a negative influence on the air flow through the suspension of the at least one flap arrangement is avoided.
  • This can in particular have the effect that the flap of the at least one flap arrangement in the open position is pivoted for the most part or entirely out of the flow area.
  • a swivel axis arranged within the cross section in particular an arrangement of the swivel axis that vertically or horizontally evenly divides the cross section, is always in the flow area.
  • Such arrangements of the pivot axis have a significantly higher, disadvantageous flow resistance.
  • the pivoting of the flap of the at least one flap arrangement can also be supported by a motor.
  • the motorized pivoting of the flap can in particular be coupled to the control of a ventilation system, in particular a fan or a blower.
  • the flaps of the flap assemblies can each be pivoted completely out of the flow area. This leads to a particularly low flow resistance.
  • a flap arrangement of the at least one flap arrangement arranged adjacent to the outlet is arranged such that its flap protrudes from the outlet in the open position.
  • a flap protruding from the outlet of the flap arrangement arranged adjacent to the outlet forms a roof in the open position.
  • rain and / or dirt are shielded from the outlet in the open position.
  • the penetration of rain and / or dirt into the interior of the wall box is avoided even when the flaps are open.
  • the flap of the flap arrangement arranged adjacent to the outlet is preferably arranged completely within the interior in the closed position. Accumulation of dirt or moisture on the flap is prevented in its closed position. In its closed position, the flap is also protected from the wind.
  • a flap protruding from the wall box in the open position further reduces the length of the wall box required for the functionality of the wall box.
  • the wall box can have a short length in the direction of flow.
  • Another object of the invention is to improve a wall box.
  • the wall box is particularly flexible and can be adapted to the respective needs and circumstances.
  • the wall box is particularly easy to adapt to different wall thicknesses.
  • Another object of the invention is to improve a ventilation system. This problem is solved by a ventilation system with a wall box as described above. The advantages result from those already described.
  • the ventilation system can preferably be an extractor system, in particular an extractor system for a kitchen.
  • the ventilation system can include a fan and a ventilation pipe.
  • it includes an extractor hood or an extractor hood downwards, which is also referred to as a bowl fan.
  • the fan can be, for example, a fan, in particular a radial fan and / or axial fan.
  • the ventilation pipe can be a round pipe.
  • the ventilation pipe is preferably designed as a round pipe with a diameter of 150 mm.
  • the ventilation pipe is available as a ventilation duct, in particular as a flat duct.
  • Another object of the invention is to improve, in particular to simplify, an arrangement of a wall box in an outer wall of a building.
  • This object is achieved by arranging a wall box from the preceding description.
  • the wall box according to the invention is particularly easy to adapt to the prevailing conditions. In addition, it can be installed in a particularly simple manner and particularly precisely.
  • a core hole to be drilled through the outer wall.
  • the diameter the core bore is preferably a maximum of 30 percent, in particular a maximum of 20 percent, in particular a maximum of 10 percent, preferably a maximum of 5%, particularly preferably a maximum of 2.5% larger than the maximum outer diameter of the wall box.
  • This improves the installation of the wall box and in particular the insulation of the same.
  • a wall box with an outer diameter of the housing of 175 mm with the insulation layer has an overall outer diameter of 180 mm and can be inserted into a corresponding core hole.
  • a ventilation system 1 is shown schematically.
  • the ventilation system 1 serves to vent a living space 2 of a building into an environment 3 surrounding the building.
  • the ventilation system 1 has a wall box 5 arranged in an outer wall 4 of the building.
  • the living room 2 can for example be a kitchen or a kitchen.
  • the ventilation system 1 is an extractor system for extracting cooking fumes. It includes an inlet opening 6 for the cooking fumes to be removed.
  • the inlet opening 6 is designed as an extractor hood downwards, which is also referred to as a bowl fan.
  • the inlet opening 6 is in fluid communication with a fan 7.
  • the fan 7 generates the air flow required to extract the cooking fumes.
  • the fan 7 is designed as a fan, in particular as a radial fan.
  • a ventilation pipe 8 is arranged after the fan 7.
  • the ventilation pipe 8 provides a fluid connection between the fan 7 and the wall box 5. The air drawn in from the living space 2 through the inlet opening 6 with the aid of the fan 7 and the cooking fumes contained therein are conducted into the surroundings 3 via the ventilation pipe 8 and the wall box 5.
  • the wall box 5 can in particular be composed of assemblies and / or components of a modular wall box system. This allows great flexibility.
  • the features and properties of the variants described below can in particular be freely combined with one another. Insofar as the wall box 5 is referred to below, this should be understood to mean that this is formed from one or more elements or assemblies of the wall box system.
  • the wall box 5 has a housing 10 delimiting an interior space 9.
  • the housing 10 has an inlet 11 for an air flow and an outlet 12 for an air flow.
  • a connecting piece 13 is arranged in the region of the inlet 11.
  • the ventilation pipe 8 is connected to the wall box 5 in a fluid-tight manner via the connecting piece 13.
  • the connection piece 13 is detachably connected to the housing 10, so that depending on the design of the ventilation pipe 8 different connection pieces 13 can be connected to the wall box.
  • the connecting piece 13 serves as an adapter for connecting the ventilation pipe 8.
  • the connecting piece is for a ventilation pipe 8 designed as a round pipe with an inner diameter of 150 mm and a Outside diameter of 155 mm.
  • a diameter 14 and cross section of the inlet 11 correspond to the diameter or cross section of the ventilation pipe 8.
  • the diameter 14 of the inlet 11 is therefore 150 mm.
  • the inlet 11 has a circular cross section.
  • the housing 10 is essentially circular cylindrical. It has a maximum outside diameter of 170 mm.
  • the housing 10 is made of heat-resistant plastic. It has a constant wall thickness between 0.1 mm and 10 mm, in particular about 2.5. mm on. Because of the constant wall thickness, the interior 9 also has the shape of a regular cylinder with a circular cross section. A cross-sectional contour 16 of the interior 9 therefore corresponds to the circumferential line of a circle with a cross-sectional diameter 17 (see Fig. 7 ). An area A of the cross section of the interior 9 therefore corresponds to the area of the circle with a diameter 17 and a circumference 16. This configuration of the interior 9 creates an optimal use of the space occupied by the wall box within a masonry of the outer wall 4. In particular, the cross section of the interior 9 is maximized with respect to the outer dimensions of the wall box 5, in particular its outer diameter.
  • 10 projections are formed on the inside of the housing, against which the flaps 23 rest in their closed position.
  • the closed position is precisely defined by the projections.
  • the insulation in the closed position of the flaps 23 is further improved via the projections, in particular via sealing lips arranged on the projections or the flaps 23.
  • the projections can be made of solid material or in the form of an undercut.
  • the flaps 23 can be pivotally mounted in the region of a widened cross section of the interior 9.
  • the arrangement of the wall box 5 shown in the outer wall 4 of the building is the inlet 11 with the connecting piece 13 on an inner side of the outer wall 4 facing the living space 2 and the outlet 12 on one of the surroundings 3 facing outside of the outer wall 4 arranged. If the installation is intended, the wall box 5 is aligned horizontally. This means that a central axis of the circular-cylindrical housing 10 runs parallel to a surface normal 15 of the outer wall 4. Due to the circular cylindrical housing 10 of the wall box 5, its arrangement in a masonry of the outer wall 4 is simplified. A wall breakthrough required for inserting the wall box 5 into the outer wall 4 can easily be made through a core hole with a circular drill cross section.
  • the diameter of the core bore can be adapted to the outer diameter of the wall box 5.
  • the provision of a square wall breakthrough or partially overlapping core bores, as is necessary for inserting a square wall box, for example, is avoided.
  • the wall box 5 is particularly preferably arranged in a core hole of larger diameter.
  • An insulation material is then arranged in the space between the wall box 5 and the inner diameter of the core bore.
  • the formation of a thermal bridge between the wall box 5 and the masonry of the outer wall 4 is avoided by the insulation material. This ensures good thermal insulation of the wall box 5.
  • a flow area 18 is defined within the interior 9 of the wall box 5.
  • the flow area 18 connects the inlet 11 to the outlet 12 in a flow direction 19 (see Fig. 4 , 5 , 7 or 9 ).
  • Flow direction 19 is defined as the shortest connection from inlet 11 to outlet 12.
  • the direction of flow 19 is perpendicular to the cross-sectional area of the inlet 11 and the cross-sectional area of the outlet 12.
  • the direction of flow 19 is oriented horizontally.
  • the flow direction 19 is therefore parallel both to the central axis of the cylindrical housing 10 and to the surface normal 15 of the outer wall 4.
  • the wall box 5 can also be installed inclined at a few degrees to the horizontal. It is particularly possible to wall box 5 in the Type to install that the lowest boundary of the interior 9 is inclined in the direction from the inlet 11 to the outlet 12 against the horizontal.
  • the inclination is preferably in the range from 1 ° to 10 °. In particular, it can be at least 2 °, in particular at least 3 °. This can ensure that any liquid that may undesirably collect in the interior 9 does not penetrate into the building, but rather runs off to the outside.
  • the flow area 18 is defined as the volume spanned by the length of the wall box 5 in the flow direction 19 and the cross-sectional area of the inlet 11.
  • the flow area 18 is therefore a cylindrical volume with a cross-sectional area corresponding to the cross-sectional area of the inlet.
  • the cross-sectional area of the flow area 18 therefore also corresponds to the cross-sectional area of the ventilation pipe 8. This effectively prevents turbulence.
  • the wall box 5 has an inlet-side flap arrangement 20 and an outlet-side flap arrangement 21.
  • the flap arrangements 20, 21 are identical. They each comprise exactly one flap 23 arranged on a suspension 22.
  • the flaps 23 are in one piece and dimensionally stable. They each have a valve body made of plastic, which is not explicitly shown.
  • the flaps 23 each have an insulation layer that is not explicitly shown.
  • the insulating layer is glued to the main body of the flap as an insulating material, for example foam or expanded polystyrene, on the side of the flaps 23 facing the flow, ie in its closed position on the side facing the inlet 11.
  • the insulation layer is integrated in the flaps 23.
  • the insulation layer can also be implemented as a vacuum or air inclusion within the flaps 23.
  • the flaps 23 are themselves made of an insulating material.
  • the flaps 23 each have a circumferential one Sealing lip on. The sealing lip is molded onto the valve body as a soft component.
  • the valve body is a two-component component.
  • the suspensions 22 are realized as capsule-pin suspensions.
  • the capsules 24 are designed as bores in the housing 10.
  • the pins 25 are formed integrally with the flaps 23 (cf. in particular Fig. 10 ).
  • the pins 25 and the capsules 24 are highly polished, which reduces friction between the pins 25 and the capsules 24.
  • the suspensions 22 allow the flaps 23 to be simply pivoted about a pivot axis 26 defined by the respective suspension 22.
  • the pivot axes 26 are arranged perpendicular to the flow direction 19 and above the flow area 18.
  • the flaps 23 each have a longitudinal direction 27.
  • the longitudinal direction 27 is defined as the direction perpendicular to the pivot axis 26 in which the flap has the greatest extent.
  • the longitudinal direction 27 runs independently of a pivot position of the respective flap 23 perpendicular to the pivot axis 26.
  • the plane spanned by the pivot axis 26 and the longitudinal direction 27 indicates an orientation of the flap 23. When the flap 23 is pivoted about the pivot axis 26, the orientation of the flap 23 changes.
  • the flaps 23 have a contour direction 28.
  • the contour direction 28 runs perpendicular to the pivot axis 26 and to the longitudinal direction 27.
  • the pivot axis 26, the longitudinal direction 27 and the contour direction 28 span an orthogonal coordinate system, with respect to which the contour and shape of the flaps 23 are fixed. This coordinate system is fixed with respect to the respective flap 23 and is pivoted with the flap 23.
  • the pivot axis 26 runs horizontally with the intended installation of the wall box 5.
  • the flaps 23 have a flap contour 29 which is essentially determined by the expansion of the flap 23 in the directions defined by the pivot axis 26, the longitudinal direction 27 and the contour direction 28.
  • the flap contour 29 is described in detail below in connection with the pivotability of the flaps 23.
  • the flaps 23 are about the pivot axis 26 between one in the Fig. 2 to 5 shown closed position and one in the 6 to 9 shown open position pivotable.
  • the flaps 30 are oriented essentially parallel to the cross-sectional area of the inlet 11 or the outlet 12.
  • the flaps 30 preferably have an inclination of less than 5 ° to the cross-sectional area of the inlet 11, in particular less than 5 ° a vertical plane. They can have an inclination of at least 1 °, in particular 2 °, in relation to the cross-sectional area of the inlet 11, in particular in relation to a vertical plane. If the wall box 5 is to be installed horizontally in the outer wall 4, the longitudinal direction 27 of the flaps 23 in the closed position runs essentially parallel to a direction of gravity. In the closed position, the contour direction 28 of the flaps 23 runs parallel to the flow direction 19.
  • the flaps 23 close the entire interior 9 and thus the flow area 18 in a gas-tight manner.
  • a fluid connection between the inlet 11 and the outlet 12 is interrupted. This ensures in particular that no air flow can flow from the outlet 12 in the direction of the inlet 11.
  • the penetration of ambient air into the living room 2 is consequently prevented in the closed position of the flaps 23.
  • an air cushion 30 is realized between the flap arrangements 20, 21 (see Fig. 4 and 5 ).
  • the pivot axes 26 of the flap arrangements 20, 21 are at a distance 34 in the flow direction 19 which is greater than a maximum extent of the flaps 23 in the longitudinal direction 27 (cf. Fig. 5 , 8th and 9 ). Because of the prevented air exchange, the flaps 23 are formed between the flap arrangements in the closed position 20, 21 an air cushion 30, the extent of which essentially corresponds to the distance 34 between the pivot axes 26 of the flap arrangements 20, 21 in the flow direction 19.
  • the air cushion 30 provides simple and reliable insulation between the inlet 11 and the outlet 12 of the wall box 5. This ensures thermal insulation and sound insulation between the inside and outside of the outer wall 4 of the building.
  • the insulation of the wall box 5 is effected in the closed position by the insulation layer of the flaps 23 and the air cushion 30.
  • the flaps 23 are pivoted in the direction of flow 19.
  • the flaps 23 are oriented perpendicular to a direction of gravity. This means that the longitudinal direction 27 of the flaps 23 runs parallel to the flow direction 19.
  • the contour direction 28 is parallel to the direction of gravity.
  • the flaps 23 are pivoted in such a way that a fluid connection is created between the inlet 11 and the outlet 12.
  • an air flow 33 (see Fig. 9 ) flow from the inlet 11 along the flow direction 19 via the flow area 18 to the outlet 12.
  • the air flow 33 essentially flows within the flow area 18.
  • the flaps 23 essentially completely release the flow area in the open position.
  • the flap arrangements 20, 21 and their respective flaps 23 are pivoted out of the throughflow area 18 and do not produce any flow resistance against the air flow 33 flowing in the direction of flow 19 from the inlet 11 to the outlet 12. Due to the distance 34 between the pivot axes 26 of the flap arrangements 20, 21 ensures that the flaps 23 do not overlap in the open position. Hooking of the flaps 23 when pivoting from the closed position into the open position or from the open position into the closed position is avoided.
  • the flap arrangement 21 on the outlet side does not prevent the flap arrangement 21 on the inlet side from pivoting completely.
  • the flap contour 29 allows the one-piece flaps 23 to be pivoted out of the flow area 18 and at the same time gas-tightly closing the interior 9 in the closed position.
  • the flap contour 29 is adapted to the cross-sectional contour 16 of the interior 9. This is achieved by adapting the maximum extension of the flaps 23 to the cross-sectional diameter 17 of the interior 9 both in the longitudinal direction 27 and in a direction parallel to the pivot axis 26.
  • a projection of the flap contour 29 onto a plane formed from the pivot axis 26 and the longitudinal direction 27 has a circular shape (cf. Fig. 3 ).
  • the flap contour 29 lies flush against the housing 10 along the entire cross-sectional contour 16 of the interior 9.
  • the closed position is precisely defined and prevents the flaps 23 from rattling in the closed position.
  • the flap contour 29 extends in regions adjacent to the swivel axis 26 along the contour direction 28. In these regions adjacent to the swivel axis 26, the flap contour 29 extends along the contour direction 28 to the cross-sectional contour 16 of the interior adjusted in the corresponding areas adjacent to the pivot axis 26.
  • the flaps 23 each have two contour wings 31.
  • the contour wings 31 are arranged in the direction of the pivot axis 26 laterally of the pins 25. In a plane spanned by the pivot axis 26 and the contour direction 28, the contour wings 31 have the shape of circular arc segments (cf. Fig. 4 and 7 ).
  • the radius of the circular arcs described by the contour vanes 31 is dimensioned such that the contour vanes 31 lie flush in the open position on regions of the housing 10 that are adjacent to the pivot axis 26. This means that the radius of the circular arcs described by the contour vanes 31 essentially corresponds to the radius of the cross-sectional contour 16.
  • the housing 10 forms a stop for the contour wing 31 and thus for the flaps 23 in the open position. The open position of the flaps 23 is thus precisely defined. Fluttering and / or rattling of the flaps 23 in the open position is prevented.
  • the contour wings 31 point in the contour direction 28 has an extent which is greater than 40% of the maximum extent of the flaps 23 in the longitudinal direction 27.
  • a mechanical stop is preferably provided in the axle receptacle, which prevents the flaps 23 from striking the housing 10.
  • the flaps 23 have circumferential contour edges 32 (cf. Fig. 6 , 8th and 10th ).
  • the contour edges 32 are rounded such that a smooth pivoting of the flaps 23 from the closed position into the open position and back is ensured.
  • the flap 23 of the flap arrangement 21 on the outlet side is arranged entirely within the interior 9, that is to say completely within the housing 10.
  • the open position shown is the flap 23 of the outside flap arrangement 21 beyond the outlet 12 of the housing 10.
  • a flap shielding the outlet 12 is therefore formed by the flap 23 of the outside flap arrangement 21 in the open position. It is thus prevented that rainwater can penetrate into the interior 9 of the wall box 5 via the outlet 12 even when the flaps 23 are open.
  • the mechanism for pivoting the flaps 23 is described below.
  • the flaps 23 pivot passively. There are therefore no electric motors and other active actuation mechanisms for pivoting the flaps 23.
  • the flaps 23 pivot solely on the basis of the air flow 33 generated by the fan 7.
  • the flaps 23 are always in the closed position when no air flow 33 flows or a flow pressure of the air flow 33 is lower than a predetermined opening pressure. As soon as the flow pressure of the air flow 33 exceeds the predetermined opening pressure, the flaps 23 pivot from the closed position into the open position. If the flow pressure of the air flow 33 falls below the opening pressure, the air flow 33 subsides completely or even an air flow flows against the flow direction 19, the flaps pivot due to the Gravity is purely passive from the open position to the closed position.
  • the flaps 23 have the function of a check valve, so that an air flow from the outlet 12 to the inlet 11 causes the flaps 23 to close. An air flow against the flow direction 19 is therefore not possible.
  • a practical opening pressure is between 15 Pa and 90 Pa, in particular between 50 Pa and 60 Pa. This ensures that inadvertent opening of the flaps 23 is prevented. At the same time, overloading of the fan 7 is avoided.
  • the pivotability of the flaps 23 is ensured by their low weight and the low friction realized by the highly polished capsule-pin suspension 22. This enables the flaps 23 to be pivoted with a low torque. In addition, it is ensured that the flaps 23 are pivoted completely from the closed position into the open position even when the air pressure 33 has a flow pressure which only slightly exceeds the opening pressure.
  • the pivoting of the flaps can be further supported by balancing the flaps 23 with respect to the pivot axes 26.
  • the flaps 23 are balanced such that a center of gravity of the flaps 23 has a lever arm with respect to the respective pivot axis 26, which is at most 25%, in particular at most 10%, in particular at most 1% of an extent of the flaps 23 measured along the longitudinal direction 27. This can be accomplished, for example, by providing counterweights 22 above the suspensions.
  • the housing has the shape of a regular cylinder with a non-circular base.
  • the base is a regular polygon with 5 or more corners.
  • the base area can in particular be hexagonal or octagonal.
  • Oval bases or polygons with rounded edges and corners can also be realized.
  • the housing can also vary along the direction of flow Cross section. In all alternatives, however, the following applies to an area A of the cross section of the interior perpendicular to the direction of flow: A / K > 2nd / ⁇ , where K indicates an area of an enveloping circle with the smallest possible radius that completely covers the cross section of the interior.
  • the flaps are flexible, at least in the area of the contour wings. This means that the flaps can be plate-shaped in the closed position and can be deformed in the open position by being in contact with the housing, so that the flap contour is adapted to the cross-sectional contour. In yet other alternatives, contour wings are articulated to the rest of the flap.
  • the wall box 5 is composed of components of a wall box system. In particular, it comprises one or more modular modules. This leads to great flexibility.
  • the modular design of the wall box 5 makes it possible in particular to adapt its details flexibly to different circumstances and / or specifications.
  • the housing 10 can be designed as a housing assembly. In this case, there is no need to have flaps 23.
  • a flap assembly has a housing 10 with one or more flap arrangements 20, 21 with one or more flaps 23.
  • the variants shown in these figures can be designed as flap assemblies with two flaps 23. They can also be formed from two flap assemblies, each with a flap 23.
  • the number of latching elements 35 is in particular 8. It can generally be at least 2, in particular at least 3, in particular at least 4, in particular at least 6.
  • connection piece 13 is part of a connection assembly. It can also serve as an adapter assembly for connecting a ventilation pipe 8 which has a different flow cross-section, in particular a different diameter than the wall box 5.
  • the different assemblies have locking elements by means of which they can be locked together.
  • the locking elements 35 can in particular be arranged equidistantly over the circumference of the different assemblies.
  • wall boxes 5 with different installation lengths in particular can be produced.
  • the minimum installation length is essentially only limited by the extension of the flap 23 in the flow direction 19. It can range from 3 cm to 5 cm. Installation lengths in the range from 10 cm to 30 cm, in particular in the range from 14 cm to 25 cm, are more common. Larger installation lengths are essentially possible by adding further module modules.
  • symmetry-breaking means can be used, for example in the form of a web 36 and a matching groove 37 (see Fig. 16 ) are arranged in the rest areas.
  • the assemblies can be constructed in particular according to the Poka Yoke principle.
  • connection options between the different modules in particular a single, unambiguous connection option between two modules in each case, can also be achieved by a non-equidistant distribution of the latching elements 35 over the circumference of the modules.
  • the wall box 5 can also have a panel 38 designed as a panel assembly.
  • the panel assembly can be designed as a sandwich component.
  • it can have a plastic cover 39 as a carrier. It can also have a stainless steel screen 40 as a screen.
  • the panel assembly can be connected to a housing assembly or a flap assembly, in particular latched. In particular, it can be plugged onto a housing 10 of a housing assembly or a flap assembly and fixed there, in particular detachably, by means of a plurality of tooth catches.
  • connection assembly two differently designed flap assemblies and a panel assembly.
  • the Indian Figure 13 Wall box shown comprises only 3 assemblies. This variant was based on the between the connection assembly and the outer flap assembly according to the variant according to the Figures 11 and 12th provided flap assembly waived.
  • the in the Figure 13 shown variant of the wall box 5 is therefore particularly suitable for walls with smaller wall thicknesses.
  • the in the Figures 11 and 12th shown variant of the wall box 5 is particularly suitable for external walls with larger wall thicknesses. Due to the large number of flap assemblies, it also leads to particularly good thermal properties, in particular to a particularly low heat transfer coefficient (U-value).
  • the wall box system can comprise different assemblies with different outside diameters. This makes it possible, in particular, to adapt the wall box 5 flexibly to openings that may already be present, in particular core bores in the outer wall 4 of a building.
  • the outside diameter of the wall box or of the different assemblies thereof is in particular in the range from 3 cm to 50 cm, in particular in the range from 5 cm to 30 cm, in particular in the range from 10 cm to 25 cm. It can be in particular in the range from 15 cm to 18 cm.
  • the diameter, in particular the minimum diameter of the opening, in particular the core bore, in which the wall box 5 is mounted becomes adjusted the outer diameter of the wall box 5.
  • the outer diameter of the wall box 5 can of course also be adapted in reverse to the diameter, in particular the minimum diameter, that is to say the minimum free width of an already existing opening in the outer wall 4 .
  • one or more insulation assemblies can be provided for the insulation of the wall box 5.
  • the insulation modules can in particular be adapted to the modules to be insulated, in particular their outer shape.
  • One or more sealants can be provided to seal the connection between two assemblies.
  • EPDM seals and / or sealing cords can be used in particular as sealing means 43. The dimensions of these are particularly adapted to the geometric details of the modules to be connected.
  • a sealing cord 41 is also shown, which is arranged on the back of the panel 39.
  • the sealing cord 41 is pressed from the panel 38 onto the outer wall 4 in the assembled state of the panel assembly.
  • housing assemblies can each have devices for receiving a flap arrangement, in particular a flap 23.
  • Such housing assemblies can be flexibly formed into flap assemblies by arranging a flap 23. Accordingly, flap assemblies can be formed into housing assemblies by removing the flaps 23.
  • housing assemblies in a structurally simpler manner, in particular without a receptacle for a suspension 22 of a flap 23.
  • the flap assemblies in particular each comprise a housing 10, one or more flaps 23 and the components for the pivotable suspension of the flaps 23. They can also have a flap seal 42, for example in the form of a sealing ring or a sealing cord.
  • the flaps can have a sandwich construction. In particular, they can have the actual flap 23 and flap insulation 44.
  • the flap insulation can for example be made of polystyrene (BPS, expanded polystyrene) or another insulation material.
  • BPS polystyrene
  • the shape of the flap insulation 44 is adapted to the contour of the flap 23. In particular, it can be firmly connected to the flap 23, for example glued to it.
  • flap means both a combination of flap 23 and flap insulation 44 and a flap 23 without flap insulation 44.
  • the flap 23 can be designed to be flexible. In particular, it can be compressed for arrangement in the housing 10 or for removal from the housing 10 squeezed with one hand. Here, the distance, in particular the center distance, between the two pins 25 is reduced. This enables simple, in particular tool-free arrangement and removal of the pins 25 from the suspension 22.
  • a closing mechanism 45 for a flap arrangement with a variably adjustable opening pressure is shown as an example.
  • the closing mechanism 45 comprises a magnet 46 and a ferromagnetic element 47 which interacts with it.
  • the magnet 46 can in particular be a permanent magnet.
  • the ferromagnetic element 47 can in particular be a threaded pin.
  • the grub screw can be screwed into a thread 48 in the flap 23.
  • the distance between the threaded pin and the magnet 46 can be changed. This makes it possible to adjust the force exerted by the magnet 46 on the threaded pin and thus the closing force or the opening pressure of the flap 23.
  • an electromagnet can also be provided instead of a permanent magnet.
  • the magnetic force can also be influenced via the current for generating the magnetic field.
  • the magnet 46 and the threaded pin 47 are spaced apart from one another in the radial direction, that is to say perpendicular to the flow direction 19.
  • the magnet 46 and the ferromagnetic element 47 are spaced apart from one another in the axial direction, that is to say in the flow direction 19.
  • the assemblies can each have elements, for example in the form of webs 49, which serve as installation aids.
  • the webs 49 can be seen in particular be arranged from the front in a 3 o'clock position and / or a 9 o'clock position. They can be used to support a spirit level when installing the wall box 5. They facilitate the precise assembly of the wall box 5.
  • the webs 49 can also serve as stiffening elements for stiffening the housing 10.
  • the wall box 5 can be designed as a 3 or multi-chamber system.
  • the wall box 5 can in particular be formed with at least two thermally insulated flaps 23 and at least one standing air column in the area between two flaps 23. This enables a particularly low heat transfer coefficient (U value), that is to say particularly advantageous thermal insulation.
  • a cover assembly with a cover 50 is shown as an example.
  • the cover 50 can be plugged onto the housing 10, in particular a housing or flap assembly, on the outlet side. Accordingly, it is possible to provide a cover for attachment to one of the assemblies on the inlet side.
  • the cover 50 serves to protect the wall box 5 during the shell construction phase. It is used in particular to protect the wall box 5 during plastering or grinding work. In particular, it prevents the wall box 5 from becoming dirty during the construction phase.
  • the cover 50 can be removed, in particular removed, after the construction phase has been completed. For this purpose, it has a push-out shaped element 51 or a flap.
  • the shaped element 51 can be connected to the cover 50 via thin webs.
  • the cover assembly can in particular be replaced by a panel assembly after completion of the construction work.
  • a web 52 is arranged on the cover 50.
  • the web 52 serves as an assembly aid, in particular for supporting a spirit level.

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EP19194139.2A 2018-09-11 2019-08-28 Système de boites murales pour un système d'aération Withdrawn EP3623715A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018215410.4A DE102018215410A1 (de) 2018-09-11 2018-09-11 Mauerkasten-System für ein Lüftungssystem

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EP3623715A2 true EP3623715A2 (fr) 2020-03-18
EP3623715A3 EP3623715A3 (fr) 2020-06-24

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EP (1) EP3623715A3 (fr)
CN (1) CN110887205A (fr)
AU (1) AU2019222957A1 (fr)
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JP7510735B2 (ja) 2021-03-26 2024-07-04 三機工業株式会社 遮音止水システム及び遮音止水システムの施工方法
CN115031294B (zh) * 2022-06-22 2024-01-09 珠海格力电器股份有限公司 壁挂结构及空调机组
CN118274397B (zh) * 2024-06-04 2024-09-27 江苏盛世机电工程有限公司 一种新风系统用可增加导热面积的中继管道

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DE202007000610U1 (de) 2007-01-10 2007-04-12 Bruckbauer Wilhelm Vorrichtung zum Abzug von Kochdünsten
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AU2019222957A1 (en) 2020-03-26
EP3623715A3 (fr) 2020-06-24
CN110887205A (zh) 2020-03-17
CA3055099A1 (fr) 2020-03-11
US20200080295A1 (en) 2020-03-12

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