EP4498009A1 - Dispositif d'aération doté d'une protection acoustique, agencement - Google Patents

Dispositif d'aération doté d'une protection acoustique, agencement Download PDF

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Publication number
EP4498009A1
EP4498009A1 EP23188268.9A EP23188268A EP4498009A1 EP 4498009 A1 EP4498009 A1 EP 4498009A1 EP 23188268 A EP23188268 A EP 23188268A EP 4498009 A1 EP4498009 A1 EP 4498009A1
Authority
EP
European Patent Office
Prior art keywords
housing
wall
air
opening
ventilation device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23188268.9A
Other languages
German (de)
English (en)
Inventor
Hans-Werner Roth
Inga RATHERT
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.)
LTG AG
Original Assignee
LTG AG
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 LTG AG filed Critical LTG AG
Priority to EP23188268.9A priority Critical patent/EP4498009A1/fr
Publication of EP4498009A1 publication Critical patent/EP4498009A1/fr
Pending 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
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • 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
    • 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 ventilation device for passing air through a wall of a building, with at least one air duct, in particular an exhaust air duct, which has an exhaust air opening at one end and an outlet opening at the other end, wherein the air duct is designed to extend through an opening in the wall completely or in part, so that the inlet opening is on a first side of the wall, in particular facing an acoustic transmission room of the building, and the outlet opening is on a second side of the wall, in particular facing an acoustic reception room of the building, and with a silencer which is assigned to the outlet opening, in particular is connected downstream of it, and wherein the air duct is guided through a trough-shaped housing which has a housing wall and a housing base, wherein the housing wall is designed to rest against the second side of the wall with an end face spaced from the housing base.
  • the invention relates to a ventilation system in a building, with at least one wall which separates a first room, in particular an acoustic transmission room, and a second room, in particular an acoustic reception room, from one another, wherein a ventilation device designed as described above for passing air through the wall is assigned to the wall for ventilating and/or air-conditioning the first room.
  • Ventilation systems of the type mentioned at the beginning are known from the state of the art.
  • air or supply air in particular fresh air, exhaust air and/or conditioned air
  • This is considered to be an advantageous alternative to supplying or removing air through a ventilation system arranged in a ceiling of the room or in a suspended ceiling of the room.
  • the walls protect adjacent rooms and their users from unwanted sound transmission in the form of noise and speech.
  • sound insulation is required to ensure that people in or walking past the adjacent room, particularly the hallway, cannot hear what is being discussed or presented in the room.
  • the sound path from an office room into the hallway is particularly critical acoustically, especially if the exhaust air is used as overflow air in the hallway and no separate exhaust air duct is used in the hallway for the exhaust air. So that the possibly conditioned supply air from the hallway can flow into the office room, for example, and from the office room as exhaust air or overflow air into the hallway, the wall in between must be provided with at least one opening for the air to pass through.
  • This at least one opening reduces the soundproofing effect of the wall overall, so that additional sound insulation is required in order to be able to guarantee soundproofing values that correspond to a continuously closed wall, as is usually provided between two adjacent office rooms. Sound can be transmitted further, in particular, through the exhaust air discharged from the room. It is therefore necessary to provide a silencer that ensures that sound is not transmitted to a relevant extent from one room to the adjacent room, especially the corridor.
  • a so-called telephony or pipe silencer as a silencer for the exhaust air.
  • the pipe silencer is connected to the outlet opening downstream of the air duct and arranged in the ceiling area of the corridor. The usual length of approx.
  • the cavity of a suspended ceiling in the corridor room or corridor zone must also accommodate supply air lines of a central ventilation or air conditioning system of the building, water circuits for heating and/or cooling devices or ceilings, and sprinkler systems as well as cables for electrical and data connections.
  • the present invention is therefore based on the object of creating an air-conditioning device which offers advantageous sound insulation while requiring less space for the silencer.
  • the object underlying the invention is achieved by an air-conditioning device with the features of claim 1.
  • This has the advantage that, due to the advantageous integration of the silencer into the housing, installation space is saved compared to previously known solutions and, in addition, the desired sound insulation is still reliably guaranteed.
  • the invention provides that the silencer has an air outlet chamber which has a parallel and has a housing intermediate wall extending at a distance from the housing base to the housing wall, wherein the outlet opening of the air duct opens through the housing intermediate wall into the air outlet chamber, that in a section of the housing wall in the region of the air outlet chamber an air outlet is formed at a distance from the outlet opening, and that at least the air outlet chamber is assigned a sound absorption material layer.
  • the silencer is thus integrated into the housing of the ventilation system. Because the silencer is formed by an air outlet chamber that is aligned or runs parallel to the housing base, which extends to the housing wall and thus has a base area that almost corresponds to the base area of the housing base and is parallel to the housing base, a gap or baffle silencer is formed.
  • the air outlet chamber therefore forms a long and narrow flow path with low flow resistance, which provides advantageous sound insulation, especially for exhaust air flowing through.
  • the outlet opening opens through the housing partition wall into the air outlet chamber and thus transversely to the longitudinal extension of the air outlet chamber.
  • the air duct is optionally aligned or designed towards the outlet opening in such a way that the air flowing into the air outlet chamber from the air duct, in particular exhaust air, does not flow into the air outlet chamber transversely or perpendicularly to the housing base, but inclined at an angle to it in order to minimize flow resistance.
  • the air outlet is designed at a distance from the outlet opening, so that a flow path for the exhaust air is created through the air outlet chamber from the outlet opening to the air outlet.
  • the outlet opening is preferably arranged as far away from the air outlet as possible in order to ensure the longest possible flow path through the air outlet chamber. Because the sound absorption material, in particular the sound absorption material layer, is assigned to the air outlet chamber, the air outlet chamber also has a sound-insulating effect for the exhaust air.
  • the exhaust air outlet path extended by the air outlet chamber and the sound absorption material assigned to the flow path result in advantageous sound insulation of the air-conditioning system, which achieves the advantages mentioned above.
  • the sound insulation is set or the sound insulation can be adapted to the given boundary conditions and requirements.
  • the outlet opening is located at the end of the housing wall facing away from the section of the housing wall which has the air outlet.
  • Air outlet chamber This ensures that the outlet opening is positioned as far away from the air outlet as possible and thus the flow path between the outlet opening and the air outlet or through the air outlet chamber is maximized. This results in the advantages mentioned. Because the air outlet chamber extends to the housing wall, not only the width of the air outlet chamber but also the height of the air outlet chamber is used to soundproof the exhaust air.
  • the sound absorption material layer at least essentially covers the housing base on the side opposite the intermediate housing base.
  • the sound absorption material layer extends over the entire housing base, possibly except for a section in which an air supply duct is led through the housing base.
  • the air outlet chamber is provided with the sound absorption material layer on the inside, which thus interacts directly with the exhaust air or the exhaust air flow to provide sound insulation.
  • the sound absorption material layer is arranged on the housing base, it also offers direct sound insulation that reduces or prevents sound from escaping through the housing base.
  • a further sound absorption material layer is arranged on the intermediate housing base, in particular the housing base or opposite the one sound absorption material layer, so that the exhaust air is guided between two sound absorption material layers through the air outlet chamber and the sound insulation is further increased there.
  • the housing wall preferably has a sound absorption material layer on the inside of the housing. Sound absorption material is thus arranged not only on the housing base but also on the side housing wall, with the sound absorption material layer on the housing wall preferably extending from the housing base over the intermediate housing base to the front side of the housing in order to optimize sound insulation.
  • the housing has a further layer of sound absorption material on its front side, which can be placed or is placed on the second side of the wall.
  • the trough-shaped housing can be placed on the second side of the wall with its free front side, i.e. the side facing away from the housing base. Because a further layer of sound absorption material is present in this area, a direct sound insulation on the wall itself, as soon as the device is mounted on the wall. Because a layer of sound absorption material is also arranged on the housing wall, in particular as described above, the opening in the wall is sealed or soundproofed as a whole, so that a sound path past the exhaust air opening or the air duct is at least dampened or prevented.
  • the housing has a depth extending from the housing base to the front side, a width and a height, the width being greater than the height.
  • the housing therefore preferably has a rectangular basic shape, the rectangular shape being defined by the height and width.
  • a large width compared to the height results in advantageous ceiling installation of the ventilation system in a suspended ceiling of a hallway in the building if the height is aligned vertically and the width horizontally when installed as intended.
  • the length of the flow path of the exhaust air through the silencer is essentially determined by the width of the housing, which ensures that a large height of the housing is not necessary and therefore installation is also possible in low suspended ceilings.
  • the air outlet of the air outlet chamber extends in the form of a strip or slot over the entire or almost the entire height of the housing in the housing wall.
  • the air outlet chamber is thus ultimately open to one side of the housing, so that there is very little air flow resistance.
  • the air from the air outlet is released into the environment or into the suspended ceiling, so that it reaches the receiver room and thus the second room of the building, where it can be extracted, for example, by a separate ventilation device.
  • the large air outlet prevents or reduces exhaust noise and also ensures advantageous sound insulation.
  • a further air duct leads through the housing of the device, which has a supply air opening at one end and a connection opening at the other end, wherein the further air duct is designed to protrude through a further opening or the said opening in the wall when the device is mounted, so that the supply air opening is on the first side of the wall and the connection opening is on the second side.
  • the ventilation device is thus designed as a combination air outlet for a wall of a building, which offers both a supply air duct and an exhaust air duct.
  • a silencer is also assigned to the further air duct, which serves as a supply air duct.
  • a further sound insulation element or a sound absorption material layer is arranged in the area of the supply air opening, for example extending over the supply air opening facing the room to be ventilated.
  • the supply air openings and the exhaust air opening are arranged one above the other in relation to the height of the housing.
  • supply and exhaust air for the room to be ventilated/ventilated are provided in a particularly small installation space through the combination air passage.
  • the openings in the wall are also to be designed one above the other.
  • a single opening can also be formed in the wall through which both the one and the other air duct are led. This saves installation space, particularly on the transmitter room side, and minimizes the visual impact on the wall.
  • the air ducts end in the respective opening in the wall, if applicable, or are flush with the wall on the first side.
  • the respective air duct extends through the opening so far that it protrudes from the first side of the wall, with the protruding section then preferably being assigned a protective grille in the form of a cover or a cap in order to improve the effect and also the visual impression of the device from the side of the acoustic transmitter room.
  • the supply air opening and the exhaust air opening are arranged next to each other - in relation to the height of the housing.
  • the supply air opening and the exhaust air opening are distributed across the width of the housing, whereby the air flow can be optimized, for example for the exhaust air, in particular in relation to the silencer. If the supply air and exhaust air openings are designed or arranged at the same height in the wall, this may result in further advantages, including visual ones.
  • the additional air duct is led through the air outlet chamber in sections transversely, i.e. transversely to the longitudinal extent or to the flow path of the air outlet chamber.
  • the additional air duct thus extends, in particular, through the housing base, the sound absorption material layer, the air outlet chamber, optionally through the additional sound absorption material layer and through the intermediate housing base.
  • the connection opening is arranged in the area of the housing base, for example, and can be easily connected to a central ventilation or air conditioning system.
  • the sound absorption material layer is then interrupted, but the insulating effect is still sufficient to ensure the advantages mentioned above.
  • the air outlet chamber is preferably designed such that the ratio of height to depth is 8:1 to 12:1, in particular 10:1.
  • the air outlet chamber preferably has a height of 100 to 500 mm, in particular 200 to 400 mm, and preferably a depth of 10 to 50 mm, in particular 20 to 40 mm.
  • the air outlet chamber corresponds to the dimensions of a standard housing of a conventional ventilation device, so that the ventilation device with the advantageous air outlet chamber or with the advantageous silencer can also be used as a replacement device.
  • the sound absorption material layer is made of an open-pored material, in particular with a flow resistance of more than 5KPa s/m 2.
  • the material is therefore an acoustically effective material which serves, in particular in the silencer, to reduce or prevent resonances caused by sound reflections.
  • the air-conditioning arrangement with the features of claim 14 is characterized by the inventive design of the air-conditioning device. This results in the advantages already mentioned above.
  • Figure 1 shows a plan view of a section of a building 1 that has several walls 2 that divide a building floor area into several rooms 3, 4, 5, whereby only three rooms 3, 5 are shown as an example.
  • the rooms 3, 4 are office rooms that are separated from each other by a wall 2 and from another wall 2 to the third room 5, which forms a corridor of the building 1.
  • the building 1 is in Figure 1 only partially shown, of course Building 1 can have additional rooms and/or corridors.
  • each of the office rooms 3, 4 is assigned a ventilation system arrangement 6, which ensures ventilation and/or air conditioning as well as ventilation of the respective room 3, 4.
  • several of the arrangements 6 are assigned to the respective room.
  • the respective ventilation system arrangement 6 is arranged in the ceiling area and each has a ventilation device 7 that reaches through the wall 2 to the respective room 3, 4 in order to ensure the ventilation and dehumidification of the room 3, 4, and which is connected to a central supply system 8, which has, for example, a supply air line 9 led through the room 5 and through which fresh air, optionally air-conditioned fresh air, is provided.
  • the supply air line 9 and the respective device 7 are arranged in particular in a suspended ceiling in the hallway or room 5.
  • the wall 2 separating room 5 from rooms 3 and 4 has at least one opening 10 for each of the rooms 3, 4, through which the respective air-conditioning device 7 is guided at least in part in order to be able to ensure the ventilation of the respective room 3, 4.
  • the respective opening 10 reduces the sound insulation of the wall 2.
  • the respective device 10 has an advantageous silencer 11, which will be discussed in more detail below.
  • Figures 2A to C show one of the air-conditioning devices 6, which are in particular designed identically, in different sectional views.
  • Figure 2A shows the air-conditioning device 7 in a first longitudinal section in a horizontal plane according to the Figure 2B drawn section line AA.
  • the device 7 has a housing 12 which is trough-shaped and has a housing base 13 from which a housing wall 14 protrudes.
  • the housing wall 14 is designed in particular as a circumferential housing wall 14 which extends over the outer circumference of the housing arch 13, whereby the trough shape of the housing 12 is created.
  • the device 7 is designed as a combination air passage which ensures both the ventilation and the exhaust ventilation of the respective room 3, 4.
  • the device 7 has a first air duct 15 and a second air duct 16 which is separate from the first air duct 15.
  • the air duct 15 is designed as an exhaust air duct and the air duct 16 is designed as a supply air duct.
  • the air duct 15 has an exhaust air opening 17 facing the office room or the acoustic transmission room, through which Exhaust air from the room 3, 4 enters the exhaust air duct or the air duct 15.
  • the air duct 15 has an outlet opening 18 at its end facing away from the exhaust air opening 17.
  • the air duct 16 has a supply air opening 19 facing or associated with the office room 3 or the first room 3, 4 at one end and a connection opening 20 at its other end.
  • the connection opening 20 protrudes in particular from the housing 12 and serves to connect to the supply line 9.
  • the air duct 16 protrudes in some areas from the housing 12 so that the connection opening 20 is formed in a protruding connection piece 21 of the device 7.
  • the connection piece 21 is then preferably connected to a branched connection connection 9_1 of the supply air line 9 by a flexible air duct 9_2, as shown by way of example in Figure 1 shown.
  • supply air can be supplied to the supply air duct or in the second air duct 16 through the central supply system 8, which can then be introduced into the respective room 3, 4 through the air duct 16 and the supply air opening 19.
  • Figure 2B shows the arrangement 6 with the device 7 from Figure 2A in a cross-sectional view along line BB from Figure 2A
  • the exhaust air opening 17 is arranged above the supply air opening 19 in the opening 10 of the wall 2.
  • the channels thus end one above the other in the wall 2 or in the associated room 3, 4.
  • the housing 12 forms a type of distributor or collection box for both the supply air and the exhaust air, since the exhaust air opening 17 and the supply air opening 19 preferably extend over almost the entire width of the housing 12, as shown in the figures.
  • the housing 12 has a width B, which extends horizontally in particular when installed as intended, a height H, which extends vertically, and a depth T, which extends horizontally and perpendicular to the height and width, as shown in the Figures 2A , 2B and 2C marked.
  • the opening 10 in the wall 2 thus also has, for example, an extension which corresponds at least to the width of the air ducts 15, 16 in the area of the exhaust air opening 17 and the supply air opening 19 in order to accommodate them completely, and which is narrower than the housing width B, so that the housing 12 rests against the wall 2 with the free front side of its housing wall 14, in particular in a sound-insulating or sound-damping manner, as in Figures 2A and 2B shown as an example.
  • the housing 12 has on its inside facing the wall 2 a Sound absorption material layer 22 or sound dampening layer that extends over the housing base 13, as well as a further sound absorption material layer 23 that extends along the housing wall 14.
  • the trough shape of the housing 12 is also essentially covered by sound absorption material.
  • the sound absorption material layer is only interrupted in the area in which the air ducts 15, 16 are led out through the housing 12.
  • the housing 12 also has a further sound absorption material layer 24 on its front side facing the wall 2, which extends, for example, in a ring shape around the opening 10 of the wall 2 or around the sections of the respective air duct 15, 16 that form the exhaust air opening 17 and the supply air opening 19.
  • the ventilation device 7 corresponds at least essentially to a conventional ventilation device.
  • the device 7 differs from known ventilation devices in that the advantageous silencer 11 is assigned to the exhaust air flow or the exhaust air duct (air duct 15).
  • the silencer 11 in the form of a gate gap silencer is connected to the outlet opening 18 of the air duct 15.
  • the housing 12 has a housing intermediate floor 25 which is arranged parallel and at a distance from the housing floor 13 and extends to the housing wall 14 or at least to the sound absorption material 23 resting on the housing wall 14.
  • the housing intermediate wall 25 is also arranged at a distance from the sound absorption material layer 22 on the floor 13 of the housing 12, so that an air outlet chamber 26 is formed between the housing intermediate wall 25 and the sound absorption material layer 22.
  • the housing intermediate wall 25 is arranged so far from the sound absorption material layer 22 that the air outlet chamber 26 has a small depth compared to its width and height, so that it forms an air guide gap.
  • the sound absorption material layer 22 is made in particular from an open-pored, acoustically active material which preferably has a length-related flow resistance of more than 5 KPa s/m 2 .
  • the housing 12 acts as sound insulation, wherein the housing is preferably made of sheet steel with a sheet thickness of 1 mm or more than 1 mm. As a result, sound insulation is achieved on the housing 12 by sound reflection on a hard surface.
  • the housing wall 14 has an air outlet 27 at the level of the air outlet chamber 26, the width of which corresponds to the depth of the air outlet chamber 26 and the height of which corresponds to the height of the air outlet chamber 26.
  • the air outlet chamber 26 is thus open towards one side of the housing 12, as for example in Figure 2C which is a longitudinal section through the ventilation system 7 along the line CC of Figure 1
  • the cutting plane leads through the air outlet chamber 26.
  • the outlet opening 18 of the air duct 15 is designed such that it opens into the housing intermediate wall 25 or into the air outlet chamber 26 through the housing intermediate wall 25.
  • Exhaust air exiting from the room 3 thus passes through the outlet opening 18 directly into the air outlet chamber 26.
  • the outlet opening 18 is arranged as far as possible from the air outlet 27 in the housing 12 so that the flow path through the air outlet chamber 26 is maximized.
  • the exhaust air flows along the sound absorption material layer 22 or between the sound absorption material layer 22 and the housing intermediate floor 25 to the lateral air outlet 27 in the housing wall 14.
  • airborne sound is absorbed in particular by the silencer 11, while sound insulation, in particular of structure-borne sound, is achieved by the housing 12.
  • the device 7 thus ensures both sound insulation and sound attenuation.
  • the silencer 11 is advantageously integrated into the housing 12 of the device 7 and is implemented as a gap damper or a baffle damper in the air outlet chamber 26, the installation space required for the silencer 11 is minimal. Since the entire width of the housing 12 is utilized, the height H of the housing 12 can be smaller and a pipe silencer connected to the flow path, which would require significantly more installation space, can be dispensed with.
  • the advantageous ventilation system 7 ensures that there is sufficient sound insulation from the respective room 3, 4 into the corridor, particularly in the exhaust air path.
  • the additional sound absorption material layer 23, 24 and also the sound absorption material layer 22 provide insulation for the supply and exhaust air passage to reduce the sound radiation via the walls, in particular the housing wall 14 and the Housing base 13 of the housing 12 is ensured.
  • the sound absorption material layers 22, 23 and/or 24 are designed in particular together with the housing 12 as an insulating shell, which can be mounted or is mounted on the wall 2 covering the opening 10.
  • the damping of the baffle gap in particular ensures that resonances caused by sound reflections in the baffle gap or in the silencer 11 are dampened.
  • the housing 12 is therefore largely responsible for the sound insulation.
  • the sound absorption material used improves the insulation overall and preferably fills the cavities of the housing that are not used for air conduction as much as possible.
  • the device 7 limits the flow loss of the exhaust air to 15 to 20 Pa, so that the pressure difference at a closed door of the associated room 3, 4 is not noticeable when it is opened and the desired exhaust air volume flow arrives as overflow air in the corridor or in the room 5.
  • the housing 12 has a width B that corresponds to the typical axis width of a building wall, for example 1350 mm.
  • the corridor in the ceiling area can be advantageously used for laying and routing electrical, hydraulic and/or pneumatic lines.
  • the housing wall 14 and the housing base 13 have a sheet thickness of 1 mm to 1.5 mm, in particular 1.25 mm, and are made in particular from sheet steel.
  • the same preferably also applies to the housing intermediate base 25.
  • the respective sound absorption material layer 22, 13, 24 has in particular a thickness of at least 30, preferably of at least 40 mm.
  • the geometry of the gate gap or the air outlet chamber 26 preferably has an advantageous aspect ratio of small width and large height, wherein in particular a width of 20 to 40 mm and a height of 200 to 400 mm are provided in order to achieve good sound absorption on the one hand and to advantageously limit the air velocity and thus the air pressure loss on the other hand.
  • the advantageous design of the air-conditioning device 7 also ensures simple installation, since the housing 12 with the silencer 11 integrated therein is simply placed on a combination air outlet or the opening 10 of the wall 2 and in particular with Screws must be attached to the wall 2. Self-tapping screws are preferably used.
  • the housing 12 preferably has one or more outwardly projecting fastening flanges on the front side of the housing wall 14 facing the wall 2, through which the fastening screws can be guided.
  • the ventilation device 7 can therefore also be manufactured and used as a retrofit solution, for example to provide more space in a confined installation space with the same or improved sound insulation. Tests have already shown that a sound absorption level of Rw>30 dB can be achieved by the ventilation device 7 in order to maintain resulting, rated sound insulation levels of the wall 2 separating the corridor from the offices of 40 to 45 dB.
  • Figure 3A shows a longitudinal section according to the Figure 3B drawn section line AA, as shown in Figure 2A was elected, and Figure 3B a cross-section as in Figure 2B shown, along the Figure 3A marked section line BB.
  • the supply air opening 19 and the exhaust air opening 17 are not arranged one above the other, but next to each other in the opening 10 of the wall 2.
  • the paths of the exhaust air and supply air differ only slightly from each other.
  • the exhaust air opening 17 is arranged on the side of the housing 12 facing away from the air outlet 27 in the opening 10, so that the supply air opening 19 is between the exhaust air opening 17 and the air outlet 27, as in the top view of Figure 3A shown.
  • the outlet opening 10 of the air duct 15 is also located on the side of the housing intermediate floor 25 facing away from the air outlet 27 in order to maximize the flow path through the air outlet chamber 26 or the sound insulation gap.
  • connection piece 21 with the connection opening 20 is preferably moved further in the direction of the air outlet 27 so that the Connection opening 20 is located between the outlet opening 18 and the air outlet 27 and thus opposite the supply air opening 19.
  • the ventilation device 7 also has, in the area of the supply air opening 19 and exhaust air opening 17 in the opposite section of the air ducts 15, 16 in the wall 2, a sound insulation element 29 which is made in particular from the same material as the sound absorption material layers 22, 23 and 24.

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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)
EP23188268.9A 2023-07-27 2023-07-27 Dispositif d'aération doté d'une protection acoustique, agencement Pending EP4498009A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23188268.9A EP4498009A1 (fr) 2023-07-27 2023-07-27 Dispositif d'aération doté d'une protection acoustique, agencement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23188268.9A EP4498009A1 (fr) 2023-07-27 2023-07-27 Dispositif d'aération doté d'une protection acoustique, agencement

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EP4498009A1 true EP4498009A1 (fr) 2025-01-29

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1628084A1 (fr) * 2003-04-23 2006-02-22 Tosho Engineering Co., Ltd. Ventilateur
DE202010016615U1 (de) * 2009-12-15 2011-02-24 Kainmüller, Ernst, Dipl.-Ing. Vorbau-Schallschutz für die Raumbelüftung
EP2853831A1 (fr) * 2013-09-26 2015-04-01 Sunonwealth Electric Machine Industry Co., Ltd. Dispositif échangeur d'air
WO2019050484A1 (fr) * 2017-09-11 2019-03-14 Mikrovent 5 D.O.O. Dispositif de ventilation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1628084A1 (fr) * 2003-04-23 2006-02-22 Tosho Engineering Co., Ltd. Ventilateur
DE202010016615U1 (de) * 2009-12-15 2011-02-24 Kainmüller, Ernst, Dipl.-Ing. Vorbau-Schallschutz für die Raumbelüftung
EP2853831A1 (fr) * 2013-09-26 2015-04-01 Sunonwealth Electric Machine Industry Co., Ltd. Dispositif échangeur d'air
WO2019050484A1 (fr) * 2017-09-11 2019-03-14 Mikrovent 5 D.O.O. Dispositif de ventilation

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