EP3839264A2 - Agencement de ventilateur insonorisé - Google Patents

Agencement de ventilateur insonorisé Download PDF

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Publication number
EP3839264A2
EP3839264A2 EP20214963.9A EP20214963A EP3839264A2 EP 3839264 A2 EP3839264 A2 EP 3839264A2 EP 20214963 A EP20214963 A EP 20214963A EP 3839264 A2 EP3839264 A2 EP 3839264A2
Authority
EP
European Patent Office
Prior art keywords
fan
sound
arrangement according
housing
fan arrangement
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
EP20214963.9A
Other languages
German (de)
English (en)
Other versions
EP3839264A3 (fr
Inventor
Harald Rudelgass
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.)
Systemair GmbH
Original Assignee
Systemair GmbH
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 Systemair GmbH filed Critical Systemair GmbH
Publication of EP3839264A2 publication Critical patent/EP3839264A2/fr
Publication of EP3839264A3 publication Critical patent/EP3839264A3/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F04D29/602—Mounting in cavities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of 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
    • 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
    • F24F7/065—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 fan combined with single duct; mounting arrangements of a fan in a duct
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • 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

Definitions

  • Fans are used in various areas of building technology. They are an important part of ventilation systems and air conditioning systems, but are also often used in garages or greenhouses.
  • So-called tube fans in which an axial fan is housed within an essentially tubular housing, are particularly in demand.
  • the housing can easily be attached to a building wall by means of suitable fastening means, and the axial fan generates an axial air flow with an advantageous flow profile through the essentially hollow-cylindrical housing.
  • Another typical fan type is radial fans with or without a spiral housing.
  • the housing is conventionally made of an expandable plastic or foam, for example expandable polypropylene (EPP).
  • EPP expandable polypropylene
  • This material is used in different degrees of hardness, for example in sneakers, car seats or seating and is particularly popular for packaging because of its thermal insulation properties and shock resistance.
  • a housing made of EPP is relatively thick-walled and heavy and also has insufficient sound insulation.
  • Typical conventional examples of silenced duct fans are in the references DE 25 21 416 A1 , US 2012/0051889 A1 and EP 2 492 515 A2 disclosed.
  • the pamphlet DE 20 2014 102 144 U1 shows further variants of sound-insulated centrifugal and axial fans. Rock wool, polyester, fiberglass or foams are proposed as damping materials.
  • the pamphlet DE 20 2013 100 130 U1 shows an extractor hood with a fan and a damping element attached to the inside of the housing, which can have a core made of polyurethane or melamine resin foam.
  • the object of the present invention is to overcome the above-mentioned disadvantages and to create a fan arrangement which can be manufactured inexpensively and in a resource-saving manner and is nevertheless light and compact and, in particular, has better sound insulation.
  • the manufacturing and fastening options for the fan arrangement should be improved as much as possible.
  • the present invention in addition to the known base material (typically a foam), at least one layer of an additional sound-absorbing material is accommodated in the housing in a receiving space of the housing that is open to the flow of air.
  • the fastening of the sound-absorbing material in the receiving space of the housing takes place entirely without the need for additional holding or fastening means and, for example, by means of a form fit or clamping directly in the receiving space. This simplifies assembly and reduces manufacturing costs because no additional holding or fastening means are required for the sound-absorbing material.
  • the sound-absorbing material introduced into the cavity in a form-fitting manner additionally stiffens the housing wall, which in turn allows the production of housings with smaller wall thicknesses and consequently a lighter and more resource-saving design.
  • the sound-absorbing material is accommodated in a receiving space of the housing that is open to the air flow, it is captured by the air flow which is passed through the fan arrangement according to the invention.
  • This can be used to improve air quality by introducing an odor-inhibiting substance into the sound-absorbing material or applying it as a layer.
  • An odor-inhibiting substance which is particularly preferred for the present invention is activated carbon.
  • the sound-absorbing material consists of a flame-retardant, rot-proof and recyclable natural product or plastic material, preferably a melamine resin foam.
  • a melamine resin foam sold by BASF under the trade name Basotect®.
  • Basotect® Another preferred example is rock wool in a suitable lamination.
  • a pipe fan is preferably used within an essentially hollow-cylindrical housing and an additional sound-absorbing layer is arranged, viewed in the axial direction, on at least one (preferably both) sides of the axial fan. This enables a particularly compact and efficiently sound-absorbing design of the fan arrangement.
  • other types of fans preferably radial fans, are also possible.
  • the hollow cylindrical housing is preferably composed of two half-shells. On the outer circumference, these form a projection which is essentially trapezoidal in cross section to the direction of flow.
  • the projection can be enclosed by a fastening rail with a C-shaped or dovetail-like cross section, that is to say a rail with a straight base plate and two legs bent inwards by more than 90 °. This enables a soundproof and airtight connection between the two housing parts, which can also be released again by removing the fastening rail.
  • the fastening rail furthermore has at least one fastening hole, preferably in the form of a keyhole, through which screws or other fastening means can be passed in order to attach the fan arrangement to a building wall.
  • fastening holes can also be made in a flap that can be folded out of the plane of the fastening rail in order to expand the assembly options.
  • the first embodiment relates to a fan arrangement with sound insulation on one side.
  • the housing 10 is constructed essentially as a hollow cylinder and made from a foam 11, preferably expandable polypropylene (EPP).
  • the foam has mounting grooves 11A for receiving the axial fan 20 as well as suitable recesses or openings for the arrangement of a connection unit 21 for the electrical contacting of the axial fan 20.
  • the axial fan 20 ensures that air is conveyed from an air inflow side 1 in the flow direction X to an air outflow side 2.
  • pipe ends 3A, 3B can be seen, which are connected to the housing 10 via suitable plug-in systems.
  • the tubes 3A, 3B can pass the air overpressure or underpressure to a desired location.
  • an additional sound-absorbing layer 12 is introduced within a hollow cylindrical recess or depression (so-called receiving space) of the foam material 11.
  • This sound-absorbing layer 12 is made from a melamine resin foam which is sold, for example, by the company BASF under the trade name Basotect®.
  • Other materials with a good soundproofing effect are also suitable. For example, rock wool in a suitable plastic lamination.
  • the introduction of the additional sound-absorbing material 12 takes place in the recess or depression of the foam 11 and ideally so, that the inner surface of the sound-absorbing material 12 is flush with that of the foam material 11, so that overall a smooth transition is created on the inner surface of the tubular housing 10.
  • the sound-absorbing material 12 is additionally impregnated or coated with an odor-inhibiting substance. Because, in the present invention, the sound-absorbing material 12 is accommodated in a receiving space that is open to the air flow, it is at least partially traversed by the air flow which is passed through. Therefore, kitchen odors, tobacco smoke or other undesirable odors can be efficiently filtered out.
  • the additional sound-absorbing layer can also be arranged on the axially opposite side of the axial fan 20 in the direction of flow X.
  • a layer of a sound-absorbing material 12, 13 is introduced both on the axially upstream side in the flow direction X and on the axially downstream side of the axial fan 20 in the flow direction X, as is shown in the second exemplary embodiment in FIG Figure 2 is shown.
  • the axial fan 20 moves further into the center of the housing 10 and the two sound-absorbing material layers 12, 13 have a correspondingly shorter extension in the axial direction.
  • embodiment 1 applies accordingly to the second embodiment.
  • the Figures 3 and 4 show the possibility of attaching the fan arrangement to a building wall 40 or some other support structure.
  • the housing 10 consists of two half-shell-shaped housing parts 10A, 10B is assembled.
  • the half-shells do not correspond to the one in the Figures 1 and 2 Section shown along the flow direction X, but a section plane rotated by 90 ° about this flow direction X as the axis of rotation.
  • the two housing parts 10A, 10B each form half of a projection 10C of essentially trapezoidal basic shape on their outer circumference.
  • This projection 10C is held together by a fastening rail 30, which has a correspondingly complementary C-shape and (as shown in FIG Figure 3B particularly easy to see) has the overall cross-sectional shape of a dovetail.
  • the fastening rail 30 is preferably made of metal and is pushed in the axial direction parallel to the flow direction X onto the projection 10C formed by the two housing parts 10A, 10B that it closes the two parts 10A, 10B together airtight. If necessary, the fastening rail 30 can be removed again and the interior of the housing 10 can be made accessible (for example for repairs).
  • the fastening rail 30 has at least one fastening hole 31 which, in the exemplary embodiment shown, has the shape of a keyhole.
  • a flap 32 which can be folded out from the main plane of the fastening rail 30 is provided, which also has a fastening hole 33 (here round).
  • a fastening means 34 can be passed through the fastening hole 31, in the example shown a hammer head screw with suitable tightening nuts.
  • the opposite end of the fastener 34 is either screwed directly into a building wall 40 or (as in FIG Figure 4A shown) attached to an additional C-rail 35.
  • the fastening rail 30 has further fastening holes and / or tabs which are not shown in the drawing. Furthermore, the fastening rail 30, as in the exemplary embodiment of FIG Figure 4B shown, a folding leg 30A at one axial end. There the rail plate is bent by approx. 90 ° and the folding leg 30A thus produced prevents the projection 10C from slipping out of the rail 30.
  • the present invention relates to a fan arrangement in which a housing 10 with a base material preferably formed from foam and a fan 20 arranged therein additionally contains at least one layer of a sound-absorbing material 12, 13.
  • the sound-absorbing material 12, 13 preferably contains a melamine resin foam or rock wool and, in addition to the expandable polypropylene 11 preferably used for the foam housing 10, results in a hybrid solution that is particularly optimized for the use of the fan arrangement in residential areas or other areas with problematic acoustics.
  • Air inlet side Air outlet side 3A, 3B Pipe ends 10 casing 10A, 10B Housing parts 10C head Start 11 Base material / foam 11A Mounting grooves 12, 13 sound absorbing material 20th fan 21 Connection unit 30th Mounting rail 30A Folding legs 31, 33 Mounting holes 32 Tab 34 Fasteners 35 C-rail 40 Building wall

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Duct Arrangements (AREA)
EP20214963.9A 2019-12-17 2020-12-17 Agencement de ventilateur insonorisé Pending EP3839264A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019107056.0U DE202019107056U1 (de) 2019-12-17 2019-12-17 Schallgedämmte Ventilatoranordnung

Publications (2)

Publication Number Publication Date
EP3839264A2 true EP3839264A2 (fr) 2021-06-23
EP3839264A3 EP3839264A3 (fr) 2021-10-13

Family

ID=73855308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20214963.9A Pending EP3839264A3 (fr) 2019-12-17 2020-12-17 Agencement de ventilateur insonorisé

Country Status (2)

Country Link
EP (1) EP3839264A3 (fr)
DE (1) DE202019107056U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022201615B3 (de) 2022-02-16 2023-05-25 Zf Friedrichshafen Ag Lüfteranordnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521416A1 (de) 1975-05-14 1976-11-25 Costa Silard Dipl I Vasiljevic Schallgedaempfter axialventilator
US20120051889A1 (en) 2009-07-29 2012-03-01 Soler & Palau Research, S.L.U. Sound-proofed helicocentrifugal fan
EP2492515A2 (fr) 2011-02-28 2012-08-29 Soler & Palau Research, S.L. Ventilateur centrifuge à hélices
DE202013100130U1 (de) 2013-01-11 2014-04-14 Carcoustics Techconsult Gmbh Akustisches Dämpfungselement für ein Haushaltsgerät, insbesondere für eine Dunstabzugshaube; Haushaltsgeräte mit akustischem Dämpfungselement
DE202014102144U1 (de) 2014-05-08 2014-05-15 Yu-Pei Chen Schalldämpfungsvorrichtung für ein Gebläse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346174A (en) * 1966-07-05 1967-10-10 Trane Co Compact axial flow fan
US5791870A (en) * 1997-01-31 1998-08-11 The Spencer Turbine Company Blower having reversible connecting flange
JP4190683B2 (ja) * 1999-11-22 2008-12-03 株式会社小松製作所 ファン装置
CN206206279U (zh) * 2016-11-28 2017-05-31 广东黄赛航空科技有限公司 一种涵道吹风筒

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521416A1 (de) 1975-05-14 1976-11-25 Costa Silard Dipl I Vasiljevic Schallgedaempfter axialventilator
US20120051889A1 (en) 2009-07-29 2012-03-01 Soler & Palau Research, S.L.U. Sound-proofed helicocentrifugal fan
EP2492515A2 (fr) 2011-02-28 2012-08-29 Soler & Palau Research, S.L. Ventilateur centrifuge à hélices
DE202013100130U1 (de) 2013-01-11 2014-04-14 Carcoustics Techconsult Gmbh Akustisches Dämpfungselement für ein Haushaltsgerät, insbesondere für eine Dunstabzugshaube; Haushaltsgeräte mit akustischem Dämpfungselement
DE202014102144U1 (de) 2014-05-08 2014-05-15 Yu-Pei Chen Schalldämpfungsvorrichtung für ein Gebläse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022201615B3 (de) 2022-02-16 2023-05-25 Zf Friedrichshafen Ag Lüfteranordnung

Also Published As

Publication number Publication date
DE202019107056U1 (de) 2021-03-18
EP3839264A3 (fr) 2021-10-13

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