EP4265971A1 - Schirmschirm für ein belüftungssystem eines wohnraums - Google Patents

Schirmschirm für ein belüftungssystem eines wohnraums Download PDF

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Publication number
EP4265971A1
EP4265971A1 EP23163373.6A EP23163373A EP4265971A1 EP 4265971 A1 EP4265971 A1 EP 4265971A1 EP 23163373 A EP23163373 A EP 23163373A EP 4265971 A1 EP4265971 A1 EP 4265971A1
Authority
EP
European Patent Office
Prior art keywords
box
visor
outlet
air
partition
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
EP23163373.6A
Other languages
English (en)
French (fr)
Inventor
Arnaud Vitel
Paul Lecointe
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.)
Atlantic Climatisation Et Traitement D'air Industrie
Original Assignee
Atlantic Climatisation Et Traitement D'air Industrie
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 Atlantic Climatisation Et Traitement D'air Industrie filed Critical Atlantic Climatisation Et Traitement D'air Industrie
Publication of EP4265971A1 publication Critical patent/EP4265971A1/de
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
    • F24F7/00—Ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—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
    • 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
    • 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
    • F24F2013/242—Sound-absorbing material
    • 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
    • F24F2221/52—Weather protecting means, e.g. against wind, rain or snow

Definitions

  • the invention relates to a rain visor, in particular for a ventilation system for a premises, such as a building.
  • the ventilation of homes, and in particular of collective housing buildings, is increasingly better controlled, thanks to such ventilation systems, the performance of which impacts the quality of the air breathed by the occupants of the buildings as well as consumption. energy of these.
  • the Holder has developed optimized ventilation systems, whether single flow or double flow.
  • these systems include a housing provided with an air inlet and an air outlet which is protected from bad weather by a simple wall forming a rain visor.
  • the present invention is part of the Holder's desire to continue to improve the situation.
  • a rain visor is proposed, in particular for a ventilation system of a premises, such as a building, comprising a box provided with an acoustic treatment means.
  • the present invention ensures greater comfort for the occupants of the building, since the visor makes it possible to reduce the sound volume felt by the occupants of the building equipped with the ventilation system and rain visor assembly.
  • the acoustic processing means comprises a means for processing low frequency sound waves.
  • the means for processing low frequency sound waves comprises an internal volume of the box greater than or equal to 4 times an output section times a dimension of the box.
  • the acoustic processing means comprises means for processing high frequency sound waves.
  • the means for processing high frequency sound waves comprises a set of at least one element made of sound insulating material and a partition.
  • said assembly comprises a succession of a partition, an element made of sound insulating material, and a partition.
  • the sound insulating material is chosen from acoustic foam and/or acoustic wool.
  • the acoustic foam and/or acoustic wool is hydrophobic and/or rot-proof.
  • the partition is a solid or perforated sheet metal or a mesh.
  • the box comprises an air flow inlet and an air flow outlet, shaped so that an air passage section of said outlet is at least strictly greater than the passage section of said air inlet.
  • the air passage section of the air outlet is between 2 and 3 times the air passage section of said air inlet.
  • the visor comprising means for integrating the box into the ventilation system.
  • said integration means comprise means for fixing the box to the system.
  • the fixing means comprises at least one tab projecting out of a wall of the box.
  • the subject of the invention is a rain visor 1 illustrated on the figures 1 to 3 .
  • the visor 1 is intended to equip an outlet of a ventilation system 100, as will be described later.
  • the rain visor 1 comprises a box 2 provided with means 3 for acoustic processing of sound waves coming from the outlet of the ventilation system 100.
  • Box 2 provides effective protection against bad weather, and in particular against rain, of the ventilation system 100.
  • the box 2 comprises a set 4 of walls delimiting an internal volume V and is provided with an air flow inlet 5 and an air flow outlet 6.
  • All of the boundary walls 4 ensure orientation and guidance of the acoustic waves coming from the entrance 5 which contribute to reducing sound propagation outside the box 2, thereby reducing the sound level felt near the visor 1.
  • the assembly 4 comprises a bottom wall 8, arranged substantially horizontally in the service position, that is to say when the visor 1 is installed at the outlet of the system 100.
  • the bottom wall 8 is installed in the inlet 5 of box 2.
  • the assembly 4 also includes two side walls, 9, 10, facing each other, arranged vertically in the service position, as well as a roof wall 11.
  • the bottom wall 8 and the side walls 9 and 10 are flat.
  • the roof wall 11 comprises three flat sections 12, 13, 14.
  • the section 12 is advantageously folded so as to present a chamfer 15 for stiffening the box 2.
  • the acoustic processing means 3 comprises a means for processing high frequency sound waves 16, now detailed.
  • high frequencies we mean frequencies greater than or equal to 800 Hz, preferably greater than or equal to 1000 Hz.
  • the means 16 comprises a set of at least one element made of sound insulating material and a partition.
  • the sound insulating material is chosen from acoustic foam and/or acoustic wool.
  • Acoustic foam is a sound insulator based in particular on polyurethane, melamine or even polyethylene, possibly including a surface profile to accentuate sound absorption.
  • the acoustic foam is hydrophobic and/or rot-proof.
  • Acoustic wool is a mineral sound insulator, based in particular on glass wool, wadding, cotton wool and/or rock wool.
  • the acoustic wool is hydrophobic and/or rot-proof.
  • the means 16 comprises assemblies, called peripherals P, and an assembly, called internal I.
  • Each of the peripheral assemblies P comprises a partition C and an element made of sound insulating material M.
  • the partition C is one of the boundary walls 8 to 11.
  • the element M is a panel of sound insulating material.
  • each panel has a thickness of between 10 mm and 100 mm, preferably between 20 mm and 80 mm, more preferably 50 mm, in order to allow the best compromise between sound absorption, the size of the panel and the cost of the visor.
  • the peripheral assemblies P are referenced 17 to 20.
  • the assembly 17 includes the bottom wall 8 as well as a panel 21 of sound insulating material. Panel 21 extends parallel to wall 8 in internal volume V.
  • the assembly 18 includes the side wall 9 as well as a panel 22 of sound insulating material. Panel 22 extends parallel to wall 9 in internal volume V.
  • the assembly 19 includes the side wall 10 as well as a panel 23 of sound insulating material. Panel 23 extends parallel to wall 10 in internal volume V.
  • the assembly 20 includes the roof wall 11 as well as a panel 24 made of sound insulating material.
  • the panel 24 comprises three sections 25, 26, 27, the section 25 (respectively 26, 27) extending parallel to the section 12 (respectively 13, 14) of the wall 11 in the internal volume V.
  • the bottom wall 8 is a mesh while the side walls 9, 10 and the roof wall 11 are solid.
  • the internal assembly I comprises a stack, referenced 28, of three partitions C and three panels M of sound insulating material.
  • the assembly 28 successively comprises a partition 29, a panel made of sound insulating material 30, a partition 31, a panel made of sound insulating material 32, a partition 33 and a panel of sound insulating material 34.
  • the panel 30 is equidistant from the partition 29 and the partition 31;
  • the partition 31 is equidistant from the panel 30 and the panel 32;
  • the panel 32 is equidistant from the partition 31 and the partition 33;
  • the partition 33 is equidistant from the panel 32 and the panel 34.
  • each of the partitions and panels 20 to 34 comprises fixing lugs 35 to the panel 21 itself having receiving cavities 36 of the lugs 35.
  • each of the partitions and panels 20 to 34 comprises fixing lugs 37 to the panel 24 itself having in its section 25 receiving cavities 38 of the lugs 37.
  • the partitions 29, 31 and 33 are advantageously identical. Each of them is in the form of a cassette comprising two grids 39, 40 spaced apart and arranged parallel to each other.
  • the cassettes limit damage at high speeds and ensure mechanical strength of the M panel against sagging.
  • the M panels are protected by an anti-fiber glass veil which guarantees longevity.
  • Each of the peripheral P and internal I assemblies contributes to reducing the propagation of high frequency waves, which allows the limitation of the noise perceived near the visor 1 and thus improves the comfort of the environment of the visor 1.
  • the outlet 6 is provided with an outlet facade 41 in which an outlet grille 42 is fixed.
  • the outlet facade 41 is an air flow partitioning sheet, which divides into four partial air outlet sections 43 the overall section S6 of the air outlet 6.
  • the section S6 is the sum of the four partial sections 45.
  • inlet 5 and the outlet 6 are shaped so that the section S6 is at least strictly greater than the passage section of said air inlet, which makes it possible to effectively reduce the noise perceived outside the box 2.
  • inlet 5 and the outlet 6 are in substantially orthogonal planes, so that the air describes a bend in its passage through the box 2, which creates a pressure loss and a reduction in the noise perceived at the outside of box 2.
  • the output S6 is between 2 and 3 times the value of section S5.
  • the acoustic processing means 3 also comprises a means for processing low frequency sound waves 46.
  • low frequencies we mean frequencies less than or equal to 250 Hz.
  • the processing means 46 consists of a volume with a section ratio S5/S6 of the order of 4 for a box length L of between 500 mm and 1000 mm equal to the length of the box.
  • the volume is therefore for example greater than or equal to 3*S5*L, preferably greater than or equal to 4*S5*L.
  • the internal volume of box 2 is of the order of the internal volume of ventilation system 100.
  • the internal volume V of the box 2 forms a relaxation volume which reduces the speed of the air, and reduces the level of low frequency sound waves.
  • FIG. 3 illustrates an installation 110 comprising the system 100 as well as the visor 1.
  • the ventilation system 100 comprises a box 101 provided with an air inlet 102 to supply fresh air to the room it equips and an air outlet 103 to extract air from the room.
  • the system 100 also includes a fan to force air into the room.
  • the system 100 optionally includes an exchanger or a filtration system.
  • the system 100 can also operate in insufflation, in which case the reference 102 corresponds to the air outlet while the reference 103 corresponds to the air inlet.
  • the system 100 is designed to withstand at least 30 min at a temperature of 400°C.
  • the box 2 is adapted to the ventilation system 100.
  • the inlet 5 of the visor 1 is placed on the outlet 103 of the housing 101.
  • the section S5 is greater than or equal to an air passage outlet of the outlet 103 .
  • the box 2 includes means for fixing, possibly removable, the device 1 to the ventilation system 100, which ensures optimized mountability of the device 1, guarantees sealing and improves the integration of the product 1 into the system 100.
  • the side walls 9 and 10 each comprise a plurality (three in the illustrated embodiment) of lugs 47 projecting downwards, in the service position, to secure the box 2 to the housing 102.
  • screws 48 secure the lugs 47 to the housing 102.
  • the side walls 9 and 10 are arranged in the extension of the side walls respectively of the housing 101, which contributes to better integration of the device 1 with respect to the system 100.
  • the side walls 9 and 10 are arranged slightly outside the side face of the box in order to direct the runoff of rainwater onto the side faces of the box.
  • the air inlet face 5 is mounted on the air intake face of the housing 101 (this is the outlet 103 on the Figure 3 ), and advantageously has the same area as this.
  • Figure 4 illustrates the noise level in decibels (vertical axis) as a function of the frequency expressed in Hz (horizontal axis), with device 1 (black columns) and without device 1 (white columns). As visible in this figure, the visor 1 significantly reduces the sound intensity at the output of subwoofer 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Outer Garments And Coats (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP23163373.6A 2022-04-21 2023-03-22 Schirmschirm für ein belüftungssystem eines wohnraums Pending EP4265971A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2203727A FR3134877B1 (fr) 2022-04-21 2022-04-21 Visière pare-pluie pour système de ventilation d’une habitation

Publications (1)

Publication Number Publication Date
EP4265971A1 true EP4265971A1 (de) 2023-10-25

Family

ID=82019428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23163373.6A Pending EP4265971A1 (de) 2022-04-21 2023-03-22 Schirmschirm für ein belüftungssystem eines wohnraums

Country Status (2)

Country Link
EP (1) EP4265971A1 (de)
FR (1) FR3134877B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118573A5 (de) * 1970-12-17 1972-07-28 Svenska Flaektfabriken Ab
DE2410170A1 (de) * 1974-03-02 1975-09-11 Wilhelm Flamme Schallschlucklueftung
FR2523190A1 (fr) * 1982-03-09 1983-09-16 Cherrier Gerard Bouche d'aeration acoustique
DE9212993U1 (de) * 1992-09-26 1992-12-03 Meltem Lüftungsgeräte GmbH, 8031 Alling Zulufteinrichtung zum Einbau in Außenwänden von Gebäuden und/oder Wohnungen
EP0566211A1 (de) * 1992-04-15 1993-10-20 Adrianus Jacobus Zwaan Schalldämpfende Lüftungsvorrichtung mit einem länglichen blockförmigen Gehäuse und einem spaltförmigen Lüftungskanal
EP1628084A1 (de) * 2003-04-23 2006-02-22 Tosho Engineering Co., Ltd. Ventilator
WO2019151931A1 (en) * 2018-02-01 2019-08-08 Hiak Ab An air vent

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118573A5 (de) * 1970-12-17 1972-07-28 Svenska Flaektfabriken Ab
DE2410170A1 (de) * 1974-03-02 1975-09-11 Wilhelm Flamme Schallschlucklueftung
FR2523190A1 (fr) * 1982-03-09 1983-09-16 Cherrier Gerard Bouche d'aeration acoustique
EP0566211A1 (de) * 1992-04-15 1993-10-20 Adrianus Jacobus Zwaan Schalldämpfende Lüftungsvorrichtung mit einem länglichen blockförmigen Gehäuse und einem spaltförmigen Lüftungskanal
DE9212993U1 (de) * 1992-09-26 1992-12-03 Meltem Lüftungsgeräte GmbH, 8031 Alling Zulufteinrichtung zum Einbau in Außenwänden von Gebäuden und/oder Wohnungen
EP1628084A1 (de) * 2003-04-23 2006-02-22 Tosho Engineering Co., Ltd. Ventilator
WO2019151931A1 (en) * 2018-02-01 2019-08-08 Hiak Ab An air vent

Also Published As

Publication number Publication date
FR3134877A1 (fr) 2023-10-27
FR3134877B1 (fr) 2024-08-02

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