WO2006119895A1 - Revetement d'insonorisation, en particulier revetement interieur de cloison de separation pour automobiles - Google Patents

Revetement d'insonorisation, en particulier revetement interieur de cloison de separation pour automobiles Download PDF

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Publication number
WO2006119895A1
WO2006119895A1 PCT/EP2006/004112 EP2006004112W WO2006119895A1 WO 2006119895 A1 WO2006119895 A1 WO 2006119895A1 EP 2006004112 W EP2006004112 W EP 2006004112W WO 2006119895 A1 WO2006119895 A1 WO 2006119895A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaped
spacer elements
cladding according
heavy layer
end wall
Prior art date
Application number
PCT/EP2006/004112
Other languages
German (de)
English (en)
Inventor
Marion Zybarth
Gerald Dreffke
Original Assignee
Carcoustics Tech Center 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 Carcoustics Tech Center Gmbh filed Critical Carcoustics Tech Center Gmbh
Publication of WO2006119895A1 publication Critical patent/WO2006119895A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • B60R13/083—Acoustic or thermal insulation of passenger compartments for fire walls or floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0846—Insulating elements, e.g. for sound insulation for duct, cable or rod passages, e.g. between engine and passenger compartments

Definitions

  • Sound-insulating cladding in particular inside bulkhead cladding for motor vehicles
  • the invention relates to a sound-insulating cladding for an interior surface of a motor vehicle, in particular for attachment to the inside of a front wall separating an engine compartment from a passenger compartment, with a heavy layer and a plurality of spacer elements extending from the back of the heavy layer in the direction of the inner surface or end wall to be clad protrude.
  • Such a panel is known from GB 2 216 081 A.
  • the cladding shown there is a front wall cladding, which consists of a heavy layer with spacer elements formed thereon and is produced as a molded part made of thermoplastic elastomer in the strand-forming molding process.
  • the spacer elements are preferably designed to achieve a relatively high stiffness of the cladding as webs of a grid. However, if the stiffness of the cladding is not important, they may also be designed as pins which protrude from the back of the heavy layer.
  • the heavy layer of the lining forms with the end wall of a double-walled construction, wherein the clear width between the heavy layer and the end wall by the tips of the spacer elements which contact the end wall, is precisely defined.
  • the well-known Cladding may also be provided with an absorber layer having slots for receiving the web-shaped spacers. The acoustic effectiveness of this known cladding can still be improved, in particular with regard to structure-borne sound damping
  • the present invention has for its object to provide a sound-insulating cladding of the type mentioned above, which also provides good or even improved airborne sound attenuation and sound insulation improved structure-borne sound damping.
  • the lining according to the invention comprises a heavy layer and a plurality of spacer elements which protrude from the rear side of the heavy layer in the direction of the vehicle inner surface or vehicle end wall to be clad.
  • at least some of the spacer elements have an adhesive portion assigned to the inner surface / end wall, wherein at least a part of the spacer elements has a wave-shaped and / or spring-bellows-shaped suspension portion.
  • the lining according to the invention acts as an acoustic spring-mass system whose spring Effect is given by the suspension sections of the spacer elements and the air cushion between heavy layer and clad inner surface or end wall, while the associated mass is essentially defined by the heavy layer.
  • Suction cups may in principle be applied at different locations on the inner surface or end wall to be covered, i. their place of attachment is variable. They thus allow for the assembly of the panel a certain tolerance compensation.
  • suction cups can also be removed without residue from the inner surface / front wall to be clad, which is advantageous in terms of a sorted recycling.
  • a further preferred embodiment of the lining according to the invention is that the spacer elements having a suspension portion are formed so that they have different spring constants (restoring forces). As a result, it is possible to achieve both broadband and thus improved airborne sound absorption as well as improved structure-borne sound damping.
  • the provided with a suspension portion spacers of the lining according to the invention are preferably designed so that they have deliberately set, optionally also different spring characteristics.
  • the Federkennl the respective spacers can be progressive, degressive or substantially linear and are the acoustic Requirements adapted.
  • a part of the spacer elements acting as a spring may have progressively extending spring characteristics, while another part of the spacer elements provided with suspension sections has degressive or substantially linear spring characteristics.
  • a further advantageous embodiment of the lining according to the invention is that the heavy layer is provided with at least one Tüllenförmig formed opening.
  • the opening is used to pass a cable harness, a hose or a steering column, through the sound-insulating planar panel.
  • the design of the opening in the form of an elastic spout, which is preferably conical and / or provided with slots, allows a sound-insulating seal of the passed components, so that at this point a sound flow from the engine compartment is largely prevented in the passenger compartment.
  • the tüllenförmig formed opening has an outer groove, a radially projecting collar and / or a radially projecting flange portion.
  • This embodiment allows a positive connection ⁇ rfindungswashen panel or the Tüllenförmig formed opening at an associated opening of the to be clad Body inner surface or end wall, wherein the positive connection can act as a seal and is easily solvable if necessary.
  • Fig. 1 shows a section of a panel mounted on a body panel according to the invention in cross-section
  • FIG. 2 shows a sound absorber layer in plan view
  • Fig. 3 shows a section of another on a
  • Body panel mounted inventive panel in cross-sectional view
  • Fig. 4 shows a portion of a third embodiment of a panel according to the invention in cross-section
  • FIG. 5 shows a section of a fourth embodiment of a panel according to the invention, attached to a body panel, in cross-sectional view.
  • Fig. 6 shows a portion of another panel according to the invention with m ⁇ ⁇ n, each having an adhesive portion having spacers.
  • a portion of a body panel 1 for example, an end wall of a motor vehicle is shown, which separates the engine compartment from the passenger compartment and is arranged more or less vertically.
  • the cladding 2 consists of a laminar heavy layer 3, whose end wall 1 facing rear side with a plurality of spacer elements (spacers) 4 is provided.
  • the spacers are integrally formed on the heavy layer 3.
  • the heavy layer 3 and the spacer elements 4 are for example made of thermoplastic elastomer (TPE), in particular based on olefins
  • TPO tyrene
  • PE polyethylene
  • LDPE unfoamed low density polyethylene
  • the proportion of the filler is preferably at least 60 wt .-%, in particular more than 70 wt .-%.
  • a filler may be used in the plastic used for the heavy layer and the spacer elements
  • At least a portion of the spacer elements (spacers) 4 has at its end wall 1 facing ends a verbu i with the end wall 1 i Adhesive 5 on.
  • the adhesive portions 5 are formed in the manner of a suction cup.
  • the adhesive sections or suction cups 5 serve the structure-borne sound damping. In this context, it is also possible to speak of a deadening of the body panel or of the front wall 1 by the spacer elements 4 having an adhesive portion 5.
  • the spacers 4 may be formed like a stick, web-shaped and / or rib-shaped.
  • the web-shaped or rib-shaped spacer elements thereby preferably delimit cassette-shaped hollow chambers (air chambers) 6.1, 6.2, 6.3, which represent different, defined partial volumes. At least a portion of the hollow chambers 6.1, 6.2, 6.3 can be connected via gap openings (not shown) in circumferential spacing elements 4 and thus belong to a common cavity.
  • the spacer elements 4 each have a wave-shaped suspension section 4.1, 4.2, 4.3.
  • the lining 2 according to the invention thus represents an acoustic spring-mass system.
  • the suspension sections are designed differently, so that different spring characteristics and different spring constants (restoring forces) result.
  • the suspension sections can in particular have a substantially U-shaped compensation arc (4.3) or a substantially S-shaped (4.2) or multiple S-shaped (4.1) shape.
  • stiffening ribs 3. 3 and / or stiffening beads 3. 3 can be formed in the heavy layer 3 in a targeted manner. As a result, the bending stiffness of the heavy layer 3 is set locally and thus the spring characteristics of the suspension sections 4.1, 4.2, 4.3 and the vibration properties of the heavy layer 3 are influenced.
  • the suspension elements 4.1, 4.2, 4.3 having spacer elements 4 are formed such that the heavy layer 3 relative to the associated body inner surface or end wall 1 by a travel of at least 3 mm, preferably at least 5 mm, in particular at least 10 mm movable.
  • the overall height h of the lining 2 according to the invention is in the range of 10 to 45 mm, preferably in the range of 15 to 35 mm.
  • the panel 2 according to the invention may additionally be provided, if necessary, with a textile and / or open-pore sound absorbing layer 7 in order to achieve a broader sound absorption.
  • the sound absorber layer 7 may, for example, consist of open-pore foam or nonwoven material and be embodied as one or more layers.
  • the sound absorbing layer 7 may optionally cover the back of the heavy layer 3 over the entire surface. Preferably, however, the sound absorber layer 7 is only partially and selectively arranged where a broadband sound absorption is desired (see FIG. 1).
  • Fig. 2 shows a blank of a sound absorber layer 7 is shown, which has a plurality of perforations or holes 8 for receiving stalk-shaped spacer elements 4.
  • FIG. 3 another embodiment of a panel 2 according to the invention is shown.
  • This sound-insulating cladding also consists of a laminar heavy layer 3 whose rear side facing a body inner surface (for example front wall) is provided with a multiplicity of spacers (spacers) 4.
  • the spacers 4 are in turn integrally formed on the heavy layer 3. It can also be seen that the heavy layer has areas 3.1, 3.2 of different layer thickness.
  • the lining 2 shown in FIG. 3 is a single-substance system.
  • the spacers (spacers) 4 of the sound-insulating panel 2 are formed differently. Similar to the cladding according to FIG. 1, initially there is a stick-shaped spacer which has a substantially S-shaped configuration (4.2) and a suction-cup-like foot section (adhesion section) 5.
  • At least one spacer 4 ' is formed on the heavy layer 3, which has a cup or thimble shape and is open towards the front of the heavy layer 3.
  • the bottom of the cup-shaped or thimble-shaped spacer 4 ' is formed as a suction cup foot section 5' e.
  • stalk- or columnar spacers 4 may also be formed on the heavy layer 3, which have an elongated cavity 9 extending along the longitudinal central axis of the spacer element and open at the end adjacent to the bodywork inner surface 1 to be covered is.
  • the spacer elements (spacers) 4 may also be trumpet-shaped, as shown by way of example in FIG. 6.
  • the spacer elements 4 '', the funnel-shaped widened end 5 'of which adheres to the bodywork inner surface 1 to be clad, again act as absorbent elements damping the structure-borne noise.
  • the heavy layer 3 of the lining 2 shown in Fig. 3 also has at least one nozzle-shaped opening 10 which serves the sealed passageways of a cable harness (not shown) or a hose line (not shown).
  • the sleeve-shaped opening 10 is made double conical, so that it has a sealing constriction or constriction 10.1.
  • the Tüllenförmig formed opening 10 - hereinafter also called short grommet - is also preferably designed spring bellows.
  • the nozzle 10 thus has a relatively high flexibility and good adaptability, which is particularly favorable in terms of compensation of manufacturing tolerances.
  • the bellows-shaped nozzle 10 is dimensioned with respect to the spacers 4 so that the latter project beyond the collar or flange 11 in the unassembled state of the lining 2.
  • the elastic spout 10 can be stretched axially during assembly by applying a tensile force, so that the collar or flange 11 can be anchored in a form-fitting manner behind the opening 12 of the body panel 1.
  • the tensile force which continues to be effective in the spout 10 after assembly assists the adhesive action on the spacer elements 4, 5 'having an adhesive portion 5, 5'.
  • Fig. 4 differs from the embodiment of FIG. 3 only in terms of the design of the tüllenförmig formed opening 10.
  • the spout 10 ' is formed longer than the spout 10, in turn, a radially projecting collar or flange 11 is provided for the positive anchoring of the spout 10 'at an associated opening 12 of the body panel 1.
  • a radially projecting flange or collar 11 may be formed on the spout 10, 10 'and an outer groove for the positive anchoring of the spout to the opening 12.
  • the sleeve section 10.2 projecting beyond the radially projecting collar or flange 11 (or the optional external groove) tapers towards the open end facing the engine compartment.
  • Fig. 5 shows another embodiment of a sound-insulating lining according to the invention 2.
  • 3 bellows-shaped spacers 4 are formed on the heavy layer.
  • the sectional elements 4 shown cut are formed in the manner of a plate spring, which is composed of relatively flat, circular cone rings. In the present case, however, the flat conical rings 4.4 merge into one another in one piece.
  • the spacer elements 4 each have a foot section 5 'formed as a suction cup.
  • the heavy layer 3 is also provided with at least one Tüllenförmig formed opening 10.
  • the spacer elements acting as elastic springs 4 and the bellows-shaped nozzle 10, 10 ' can be prefabricated separately and molded in a corresponding injection mold with the heavy layer 3 forming elastomer mass, so that a one-piece component 2 results.
  • areas 3.1, 3.2 of different layer thickness can be formed in the heavy layer 3.
  • the heavy layer 3 can be provided on its side facing away from the spacer elements 4 also with a carpet layer 13 or other textile Dekorbelag.
  • the lining 2 according to the invention can be used in particular as a subfloor construction for a carpet construction of a motor vehicle.
  • the carpet can this be back-injected with the heavy layer 3 forming plastic or elastomer composition.
  • the invention is not limited in its execution to the embodiments shown in the drawing. Rather, a number of variants are possible, which also make use of the invention specified in the appended claims.
  • the panels shown in FIGS. 3 to 6 may optionally be provided with an additional sound-absorbing layer 7, as is the case for example with the exemplary embodiment according to FIG.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

La présente invention concerne un revêtement d'insonorisation pour une surface intérieure d'une automobile, en particulier conçu pour être appliqué sur la face intérieure d'une paroi de séparation (1) qui sépare un compartiment moteur d'un compartiment passager. Ce revêtement comprend une couche lourde (3) et une pluralité d'éléments d'écartement (4) qui s'éloignent de la face arrière de la couche lourde en direction de la surface intérieure ou de la paroi de séparation (1). Afin d'obtenir une meilleure isolation des bruits aériens, une meilleure isolation acoustique et une meilleure isolation des bruits solidiens avec un tel revêtement, au moins une partie des éléments d'écartement (4) présente une section d'adhésion (5) associée à la surface intérieure ou à la paroi de séparation, ainsi qu'une section élastique (4.1, 4.2, 4.3) qui est ondulée ou en forme de soufflet.
PCT/EP2006/004112 2005-05-10 2006-05-03 Revetement d'insonorisation, en particulier revetement interieur de cloison de separation pour automobiles WO2006119895A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005007646.5 2005-05-10
DE200520007646 DE202005007646U1 (de) 2005-05-10 2005-05-10 Schallisolierende Verkleidung, insbesondere innenseitige Stirnwandverkleidung für Kraftfahrzeuge

Publications (1)

Publication Number Publication Date
WO2006119895A1 true WO2006119895A1 (fr) 2006-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/004112 WO2006119895A1 (fr) 2005-05-10 2006-05-03 Revetement d'insonorisation, en particulier revetement interieur de cloison de separation pour automobiles

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DE (1) DE202005007646U1 (fr)
WO (1) WO2006119895A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132643B2 (en) 2007-12-21 2012-03-13 3M Innovative Properties Company Sound barrier for audible acoustic frequency management
US8727071B2 (en) 2009-06-25 2014-05-20 3M Innovative Properties Company Sound barrier for audible acoustic frequency management
US9324312B2 (en) 2007-12-21 2016-04-26 3M Innovative Properties Company Viscoelastic phononic crystal
CN109109779A (zh) * 2018-09-11 2019-01-01 重庆工业职业技术学院 一种汽车防撞底盘护板
KR20190137799A (ko) * 2017-04-19 2019-12-11 아들러 펠저 홀딩 게엠베하 차체의 벌크헤드용 차음 요소

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DE102007031446B3 (de) * 2007-07-05 2008-12-04 Carcoustics Techconsult Gmbh Dichtelement für eine Lenksäule eines Kraftfahrzeuges
DE102010030972A1 (de) * 2010-07-06 2012-01-12 Bayerische Motoren Werke Aktiengesellschaft Matte mit Ansaugvertiefungen zur Befestigung an einem Karosserieblech

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GB2216081A (en) * 1988-03-31 1989-10-04 Kasai Kogyo Kk Automotive accoustic insulation panel assemblies
WO1997036284A1 (fr) * 1996-03-26 1997-10-02 M. Faist Gmbh & Co. Kg Element a plusieurs couches a absorption acoustique
US5851626A (en) * 1997-04-22 1998-12-22 Lear Corporation Vehicle acoustic damping and decoupling system
EP1527954A1 (fr) * 2003-10-30 2005-05-04 Centre d'Etude et de Recherche pour l'Automobile ( CERA) Elément de faux plancher multifonction comprenant des patins en mousse formant ressort d'un système "masse-ressort"

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DE3531886A1 (de) * 1985-09-06 1987-03-19 Stankiewicz Alois Dr Gmbh Hohlkammern
GB2216081A (en) * 1988-03-31 1989-10-04 Kasai Kogyo Kk Automotive accoustic insulation panel assemblies
WO1997036284A1 (fr) * 1996-03-26 1997-10-02 M. Faist Gmbh & Co. Kg Element a plusieurs couches a absorption acoustique
US5851626A (en) * 1997-04-22 1998-12-22 Lear Corporation Vehicle acoustic damping and decoupling system
EP1527954A1 (fr) * 2003-10-30 2005-05-04 Centre d'Etude et de Recherche pour l'Automobile ( CERA) Elément de faux plancher multifonction comprenant des patins en mousse formant ressort d'un système "masse-ressort"

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132643B2 (en) 2007-12-21 2012-03-13 3M Innovative Properties Company Sound barrier for audible acoustic frequency management
US9324312B2 (en) 2007-12-21 2016-04-26 3M Innovative Properties Company Viscoelastic phononic crystal
US8727071B2 (en) 2009-06-25 2014-05-20 3M Innovative Properties Company Sound barrier for audible acoustic frequency management
KR20190137799A (ko) * 2017-04-19 2019-12-11 아들러 펠저 홀딩 게엠베하 차체의 벌크헤드용 차음 요소
CN110573383A (zh) * 2017-04-19 2019-12-13 阿德勒佩尔泽控股有限公司 车身隔板用隔音元件
US11142140B2 (en) * 2017-04-19 2021-10-12 Adler Pelzer Holding Gmbh Noise insulation element for the bulkhead of a vehicle body
KR102432124B1 (ko) * 2017-04-19 2022-08-16 아들러 펠저 홀딩 게엠베하 차체의 벌크헤드용 차음 요소
CN110573383B (zh) * 2017-04-19 2023-02-21 阿德勒佩尔泽控股有限公司 车身隔板用隔音元件
CN109109779A (zh) * 2018-09-11 2019-01-01 重庆工业职业技术学院 一种汽车防撞底盘护板
CN109109779B (zh) * 2018-09-11 2022-03-04 重庆工业职业技术学院 一种汽车防撞底盘护板

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