CN202242167U - Sound absorption and vibration attenuation plate for automobile - Google Patents
Sound absorption and vibration attenuation plate for automobile Download PDFInfo
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- CN202242167U CN202242167U CN2011203291513U CN201120329151U CN202242167U CN 202242167 U CN202242167 U CN 202242167U CN 2011203291513 U CN2011203291513 U CN 2011203291513U CN 201120329151 U CN201120329151 U CN 201120329151U CN 202242167 U CN202242167 U CN 202242167U
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Abstract
The utility model discloses a sound absorption and vibration attenuation plate for an automobile, and the plate is designed for solving the problems that a sheet material which has a sound absorption function and belongs to a decoration material in a bodywork of the automobile cannot play a good role in vibration attenuation and a sheet material with a vibration attenuation function cannot absorb high-frequency noise better in the automobile manufacturing industry. The sound absorption and vibration attenuation plate for the automobile has a multilayer structure consisting of a steel plate, and a thin film layer, a paper plate layer, a foamex layer and a rubber layer which are arranged on one face of the steel plate, and is adhered together with a shell in the automobile through rubber. The sound absorption and vibration attenuation plate for the automobile can absorb and insulate sound and attenuate vibration, has a comprehensive sound absorption and vibration attenuation function, and can be used for reducing low-frequency vibration noise and mid-high-frequency air noise and improving the noise vibration and harshness (NVH) performance of the whole automobile to a certain extent.
Description
Technical field
The utility model relates to
OnePlant the sound insulation shock-damping structure, especially relate to the automobile acoustical absorption damping block that is used in the car body.
Background technology
In automobile manufacture industry, the NVH performance of automobile is to weigh the integrated technology index of Hyundai Motor manufacture level at present, and particularly for car, internal car noise is weighed one of major criterion of car class and brand especially.Each big car load manufacturing enterprise of world car industry and parts enterprise all pay much attention to the NVH performance of automobile, and this vehicle performance also becomes the important counterweight of the various brands vehicle market competitiveness.The NVH performance of car load can promote through ACTIVE CONTROL and Passive Control dual mode, and ACTIVE CONTROL is promptly controlled from sources of noise, comprises improving each parts machining accuracy and assembly quality, improves engine structure, improves body structure or the like; Passive Control on the bang path of automobile noise, is cut down acoustic energy through various schemes then from the Body Control angle.Additional sheet material with vibration and noise reducing effect is one of major measure of passive noise reduction on automobile; From present applied vibration and noise reducing structure; Act on comparatively single; The parts of sound absorption can't play the favorable damping effect, and it is relatively poor to have the absorbent properties of parts centering high frequency noise of damping effect.
For example, a kind of disclosed on the Chinese patent document " sound panel ", publication number is CN 1535869A, Granted publication day: on October 13rd, 2004.Be between the outer metallic plate of arrangements for automotive doors and door trim board, sound panel to be installed, sound panel is at least double-decker, the outer field main deadening that rises that sound insulation and absorbent function, internal layer are arranged, and this structure has reached certain sound insulation and waterproof effect.But be difficult to play damping effect, have the relatively poor defective of vibration-damping function.
The utility model content
The purpose of the utility model is to solving in automobile manufacture industry; The sheet material that the car body inner decoration material has sound absorption can't play the favorable damping effect; And have the relatively poor problem of absorbent properties of the sheet material centering high frequency noise of damping effect, a kind of automobile acoustical absorption damping block that sound absorption function has damping effect again that has concurrently is provided.
To achieve these goals, mainly taked following technical scheme: a kind of automobile acoustical absorption damping block
,It is characterized in that: described automobile acoustical absorption damping block is by comprising steel plate and be arranged on the sandwich construction that steel plate thin layer, ply of board, foamed resin layer and rubber layer simultaneously constitutes, being provided with adhesive layer between the layer of sandwich construction and the layer.The automobile acoustical absorption damping block is made up of the thin layer on the steel plate face, ply of board, foamed resin layer and rubber layer jointly.Layer with layer between fit tightly and be connected or bond together by the adhesive layer that adhesive forms.Rubber layer plays damping effect, and thin layer, ply of board, foamed resin layer mainly play the sound-absorbing deadening.
As preferably: the order that is provided with of said sandwich construction is: steel plate, rubber layer, thin layer, ply of board, foamed resin layer, ply of board, thin layer, described adhesive layer are acrylic acid ester.Said automobile acoustical absorption damping block is to be made up of jointly above-mentioned flaggy and rete, and rubber layer directly sticks on the surface of vehicle body steel plate through viscosity own.Rubber layer through with the combining closely of vehicle body surface of steel plate, when vehicle body steel plate excited target is vibrated, cut down the vibrational energy of steel plate, thereby reach the effect of damping vibration attenuation.Thin layer is mainly isolated or absorbs airborne acoustic energy, has sound insulation or sound absorption.Bilevel acoustic celotex board and middle foaming resin have formed sound insulation-sound-absorbing-sound-insulating structure; And because the density difference of different materials itself; Form density gradient, further increased the degree of difficulty that sound wave passes through, obviously strengthened the soundproof effect of said automobile acoustical absorption damping block.The adhesive layer that is formed by the adhesive acrylic acid ester plays bonding effect.
As preferably, described rubber layer is a butyl rubber, and thickness is 1.5 to 3 millimeters; Thin layer is that PE film, thickness are 0.1 to 0.15 millimeter, and ply of board is the porous cardboard, and thickness is 2 to 3 millimeters; Foamed resin layer is the melamine Foamex, and thickness is 2 to 3 millimeters.The effect of butyl rubber be through with the combining closely of vehicle body surface of steel plate; When vehicle body steel plate excited target is vibrated; Cut down the vibrational energy of steel plate, when the vehicle body steel plate vibrated, the macromolecular chain of rubber produced motion; Rubber produces repeatedly repeated deformation (stretching, compression, shearing etc.) and makes system change a part of elastic energy into irreversible heat energy dissipation, thereby reaches the purpose of damping vibration attenuation.Film is the PE thin-film material, mainly is isolated or absorbs airborne acoustic energy, plays sound insulation or sound absorption.Cardboard is the porous cardboard, and the application of paper board material has replaced traditional nonwoven cloth material, compares with nonwoven cloth material, and the sound absorbing capabilities of paper board material is better.Foamex is one deck melamine foamed resin material, compares with traditional blown polyurethane materials, and the heat resistance of melamine material is better.The loose structure of melamine foamed resin material helps the frictional dissipation to acoustic wave energy, mainly act as sound-absorbing.Bilevel acoustic celotex board and middle melamine Foamex have formed the denoising structure of sound insulation-sound-absorbing-sound insulation; And because the density difference of different materials itself; Form density gradient; Further increased the resistance of sound wave, obviously strengthened the noise reduction effect of automobile acoustical absorption damping block through cardboard and melamine material.
1. as preferred: the thin layer away from steel plate is provided with a plurality of holes, and the density in hole is every square centimeter 50 to 80.The film of porous is on ply of board, i.e. the outmost surface of automobile acoustical absorption damping block is because film is provided with many hole institutes so that film has had corresponding penetration power.Film here is mainly and absorbs the acoustic energy of propagating in the air, plays sound absorption.
As preferably: the surface of porous cardboard is a loose structure, and the density in hole is every square centimeter 50 to 80.The surface of cardboard is a loose structure, and the hole density that the density in hole is adjacent on the layer film is suitable.Cardboard is when playing deadening, because the gap structure on surface has also played sound absorption simultaneously.
The beneficial effect of the utility model is: use the porous cardboard, replaced traditional nonwoven, played more excellent sound-absorbing effect.When the application of PE film makes the automobile acoustical absorption damping block have good sound absorption and damping effect, also reach certain soundproof effect; The automobile acoustical absorption damping block had both played sound-absorbing and deadening through special denoising structure, played damping effect again, had reached comprehensive sound-absorbing and effectiveness in vibration suppression.Simultaneously, the automobile acoustical absorption damping block plays the reduction effect to the airborne noise of low frequencies noise and medium-high frequency, car load NVH performance has also been had promote effect preferably.
Description of drawings
Fig. 1 is a kind of cross-sectional view of the utility model.
Among the figure: 1. thin layer, 2. ply of board, 3. foamed resin layer, 4. rubber layer, 5. steel plate.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is further specified.
As shown in Figure 1, a kind of automobile acoustical absorption damping block
,The hull plate 5 that comprises automobile, automobile acoustical absorption damping block comprise the sandwich construction that is made up of film 1, ply of board 2, foamed resin layer 3, rubber layer 4, are provided with adhesive layer between the layer of sandwich construction and the layer.Layer with the order of connection of layer is: steel plate 5, rubber layer 4, thin layer 1, ply of board 2, foamed resin layer 3, ply of board 2, thin layer 1; The composition structure of automobile acoustical absorption damping block is respectively; Rubber layer 4 is 2mm for butyl rubber, thickness; Thin layer 1 is 0.15mm for PE film, thickness; Ply of board 2 is 3mm for porous cardboard, thickness, and the surface of ply of board is that the density in loose structure, hole is 80 every square centimeter, and foamed resin layer 3 is 3mm for melamine Foamex, thickness.Thin layer 1 between rubber layer 4 and ply of board 2 is closely knit non-porous, and just another thin layer 1 of the outermost aspect of sound-absorbing damping block is a loose structure on the upper strata of another ply of board 2.Be provided with adhesive layer between layer and the layer, adhesive layer is an acrylate adhesive, is used for the bonding between layer and the layer.Each layer of automobile acoustical absorption damping block bonds together through the adhesive acrylic acid ester.Rubber layer 4 is a butyl rubber, and one side bonded together through 5 tight connections of viscosity and steel plate of self, and another side and film 1 are bonded together by acrylic acid ester, and steel plate 5 is the housing metallic plate of automobile.
Claims (5)
1. automobile acoustical absorption damping block
,It is characterized in that: described automobile acoustical absorption damping block is by comprising steel plate and be arranged on the sandwich construction that thin layer (1), ply of board (2), foamed resin layer (3) and the rubber layer (4) of steel plate one side constitute, the layer of sandwich construction with layer between be close to or be provided with adhesive layer.
2. automobile acoustical absorption damping block according to claim 1; It is characterized in that: the order that is provided with of said sandwich construction is: steel plate (5), rubber layer (4), thin layer (1), ply of board (2), foamed resin layer (3), ply of board (2), thin layer (1); Fit tightly between described steel plate (5) and the rubber layer (4), be provided with the acrylic acid ester adhesive layer between remaining layer and the layer.
3. automobile acoustical absorption damping block according to claim 1; It is characterized in that: described rubber layer (4) is a butyl rubber, and thickness is 1.5 to 3 millimeters, and thin layer (1) is that PE film, thickness are 0.1 to 0.15 millimeter; Ply of board (2) is the porous cardboard; Thickness is 2 to 3 millimeters, and foamed resin layer (3) is the melamine Foamex, and thickness is 2 to 3 millimeters.
4. automobile acoustical absorption damping block according to claim 2 is characterized in that: the thin layer (1) away from steel plate is provided with a plurality of holes, and the density in hole is every square centimeter 50 to 80.
5. according to claim 1 or 2 or 3 or 4 described automobile acoustical absorption damping blocks, it is characterized in that: the surface of porous cardboard is a loose structure, and the density in hole is every square centimeter 50 to 80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203291513U CN202242167U (en) | 2011-09-05 | 2011-09-05 | Sound absorption and vibration attenuation plate for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203291513U CN202242167U (en) | 2011-09-05 | 2011-09-05 | Sound absorption and vibration attenuation plate for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202242167U true CN202242167U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203291513U Expired - Fee Related CN202242167U (en) | 2011-09-05 | 2011-09-05 | Sound absorption and vibration attenuation plate for automobile |
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| Country | Link |
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| CN (1) | CN202242167U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810419A (en) * | 2016-03-30 | 2016-07-27 | 中国电力科学研究院 | Noise reduction apparatus for transformer, transformer oil tank and transformer |
| CN106585062A (en) * | 2016-12-08 | 2017-04-26 | 广东信力科技股份有限公司 | Preparation method of compound with high sound attenuation performance |
| CN108602473A (en) * | 2016-01-27 | 2018-09-28 | 欧拓管理公司 | Fluffy thermosetting property felt for sound attenuation |
| CN111511547A (en) * | 2017-12-24 | 2020-08-07 | Posco公司 | Composite steel plate |
| CN112537263A (en) * | 2020-10-29 | 2021-03-23 | 安徽江淮汽车集团股份有限公司 | Automobile with noise reduction and sound collection device |
-
2011
- 2011-09-05 CN CN2011203291513U patent/CN202242167U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108602473A (en) * | 2016-01-27 | 2018-09-28 | 欧拓管理公司 | Fluffy thermosetting property felt for sound attenuation |
| US11198402B2 (en) | 2016-01-27 | 2021-12-14 | Autoneum Management Ag | Lofty thermoset felt for noise attenuation |
| CN105810419A (en) * | 2016-03-30 | 2016-07-27 | 中国电力科学研究院 | Noise reduction apparatus for transformer, transformer oil tank and transformer |
| CN106585062A (en) * | 2016-12-08 | 2017-04-26 | 广东信力科技股份有限公司 | Preparation method of compound with high sound attenuation performance |
| CN106585062B (en) * | 2016-12-08 | 2018-07-10 | 广东信力科技股份有限公司 | A kind of preparation method of high noise reduction compound |
| CN111511547A (en) * | 2017-12-24 | 2020-08-07 | Posco公司 | Composite steel plate |
| US11420420B2 (en) | 2017-12-24 | 2022-08-23 | Posco | Composite material steel sheet |
| CN112537263A (en) * | 2020-10-29 | 2021-03-23 | 安徽江淮汽车集团股份有限公司 | Automobile with noise reduction and sound collection device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130905 |