CN202686211U - Sound-isolating damping plate for automobiles - Google Patents
Sound-isolating damping plate for automobiles Download PDFInfo
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- CN202686211U CN202686211U CN 201220255378 CN201220255378U CN202686211U CN 202686211 U CN202686211 U CN 202686211U CN 201220255378 CN201220255378 CN 201220255378 CN 201220255378 U CN201220255378 U CN 201220255378U CN 202686211 U CN202686211 U CN 202686211U
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- sound
- sound damping
- top layer
- damping panel
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Abstract
The utility model discloses a sound-isolating damping plate for automobiles. The sound-isolating damping plate for automobiles is in a three-layer composite structure which is formed by sequential overlapping of a surface layer, an interlayer and a bottom layer from top to bottom, wherein the surface layer is made of foam resin and is 2mm-3mm thick, the interlayer is made of an elastic soft plate and is 2mm-3mm thick, and the bottom layer is made of sound-absorbing cotton. The sound-isolating damping plate for automobiles is high in structural strength and has the comprehensive effect of heat-insulation, shock-absorbing and noise reduction, and the shock-absorbing and noise reduction effect is significant.
Description
Technical field
The utility model relates to a kind of sound insulating sheet material, especially relates to a kind of auto sound damping panel.
Background technology
Noise, vibration and traveling comfort are the integrated technology indexs of weighing the modern automobile manufacture level, and particularly for car, the internal car noise situation is weighed one of major criterion of car class and brand especially.Each large car load manufacturing enterprise of World Automobile Industry and parts enterprises are paid much attention to the auto NVH performance, and the NVH performance also becomes the important counterweight of the various brands vehicle market competitiveness.
The NVH performance of car load can promote by ACTIVE CONTROL and Passive Control dual mode, and ACTIVE CONTROL is namely controlled from sources of noise, comprises improving each parts machining precision and assembly quality, improves engine structure, improves body structure etc.; Passive Control is carried out sound-absorbing, absorbing, sound insulation, vibration damping etc. then from the Body Control angle to car noise source, soruce of vibration.The Passive Control aspect, automobile body sheet metal part is as stoping community noise to import main barrier in the car into, its acoustic efficiency height and weakening effect close relation to noise, especially for the front wall sheet metal component, it is used for intercepting the main noise source-motor noise of automobile, and its acoustics effect has directly affected the NVH quality of car load.But Metal Sheets for Body-manufacturing all is the individual layer steel plate structure, deadening is only arranged, and effect is general, usually adopt the mode of additional damping plate to carry out vibration and noise reducing at Metal Sheets for Body-manufacturing, yet present damping panel adopt single material usually, such as pitch, rubber etc., the noise reduction noise reduction effect is not good.
For example, Chinese patent Granted publication number: CN201895711Y, July 31 2011 Granted publication day, a kind of double-deck Novel car damping plate is disclosed, its purpose is to solve in the prior art owing to the car damping plate is made the problem that can not reach to the automotive floor panel vibration effective reduction that causes by homogenous material, the utility model comprises sole plate and brace panel, and described Novel car damping plate bottom is basal layer, and described Novel car damping plate top layer is enhancement Layer.Its weak point is, intensity is low, and effect of heat insulation is poor, and the noise reduction noise reduction effect is not good.
The utility model content
The utility model be for the damping panel intensity that overcomes prior art low, effect of heat insulation is poor, the noise reduction noise reduction effect is not good, can not reach simultaneously the deficiency of the resultant effect of vibration damping and noise reduction noise abatement, provide a kind of intensity high, and had the auto sound damping panel of the resultant effect of heat insulation, vibration damping and noise reduction noise abatement.
To achieve these goals, the utility model is by the following technical solutions:
A kind of car damping insulation board and panel of the present utility model, the three-layer composite structure of described auto sound damping panel for being built up successively from top to bottom by top layer, interlayer and bottom, described top layer is made of Foamex, thickness is 2mm～3mm, described interlayer is made of elastomeric flexible sheet material, thickness is 2mm ~ 3mm, and described bottom is made of acoustical cotton.The top layer is made of Foamex, thickness is 2mm～3mm, Foamex is lightweight, good stability of the dimension, resistance to chemical attack, good heat resistance, difficult combustion, cheap, be comparatively desirable insulation heat-insulating heat-preserving material, and the open texture of Foamex not only is conducive to the frictional loss to acoustic wave energy, has noise reduction effect, but also has the effect of vibration damping, therefore so that the top layer has the heat insulation effect of noise reduction, interlayer is made of elastomeric flexible sheet material, and elastomeric flexible sheet material can be rubber acrylate or silaatic, because interlayer can produce shear deformation according to motion, by the shear deformation of multiple reversal complex shears, can make system change a part of elastic energy into irreversible heat energy dissipation, thereby have effectiveness in vibration suppression, bottom is made of acoustical cotton, acoustical cotton has good sound-absorbing effect, and light weight, is conducive to reduce complete vehicle weight, the utility model utilizes every layer of self acoustics effect, thereby to reach heat insulation, the resultant effect of vibration damping and noise reduction noise abatement.
As preferably, described top layer upper surface also is fixed with the porous aluminium foil that thickness is 0.8mm ~ 1.0mm.Aluminium foil can prevent that the Foamex that consists of the top layer is scattered, and aluminium foil also has heat-proof quality, can further improve the heat insulation property of global facility, and in addition, the hole of aluminium foil surface can make aluminium foil have certain sound deadening, can improve erasure effect.
As preferably, the hole density of described porous aluminium foil is 50/cm
2~ 100/cm
2
As preferably, the upper and lower surface of described interlayer all is fixed with the 0.4mm that thickness in monolayer is ~ 0.8mm sheet metal component.Sheet metal component can promote global facility to greatest extent for the insulating effect of pass-by noise, can also improve structural strength, sheet metal component and interlayer have formed constrained damping structure simultaneously, greatly improve damping factor, thereby have better sound insulation effectiveness in vibration suppression, sheet metal component can improve the strength structure of whole sound-proof damping plate greatly in addition.
As preferably, described sheet metal component is cold-rolling steel.
As preferably, all fixing by the adhesive agent bonding between described top layer, interlayer and the bottom.Bonding is fixing simple and convenient, and makes the acoustic efficiency that can firmly connect to guarantee integral body between each aspect.
Therefore, the utlity model has following beneficial effect:
(1) structural strength is high;
(2) not only have the resultant effect of heat insulation, vibration damping and noise reduction noise abatement, and vibration damping and noise reduction noise reduction effect are more obvious.
Description of drawings
Fig. 1 is schematic cross-sectional exploded view of the present utility model.
Among the figure: top layer 1, interlayer 2, bottom 3, porous aluminium foil 4, sheet metal component 5.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Among the embodiment as shown in Figure 1, a kind of auto sound damping panel, be the three-layer composite structure that is built up successively from top to bottom by top layer 1, interlayer 2 and bottom 3, top layer 1 is made of the melamine Foamex, thickness is 3mm, it is 0.8mm that the upper surface on top layer 1 is adhesively fixed with thickness by epoxy adhesive, and hole density is 50/cm
2 Porous aluminium foil 4, interlayer 2 is made of silaatic sheet material, thickness is 3mm, it is 0.4mm that the upper and lower surface of interlayer 2 all is bonded with thickness in monolayer by epoxy adhesive, and be the sheet metal component 5 of cold-rolling steel, the sheet metal component 5 of the lower surface on top layer 1 and interlayer 2 upper surfaces is fixing by the epoxy adhesive bonding, and bottom 3 adopts PP+PET bi-component acoustical cotton, the sheet metal component 5 of the upper surface of bottom 3 and interlayer 2 lower surfaces is fixing by the epoxy adhesive bonding
During use, two ends and the car body with the sheet metal component 5 of interlayer 2 both sides is welded and fixed first, again porous aluminium foil 4 is bonded and fixed at body inner side by epoxy adhesive and gets final product.
Claims (6)
1. auto sound damping panel, it is characterized in that, the three-layer composite structure of described auto sound damping panel for being built up successively from top to bottom by top layer (1), interlayer (2) and bottom (3), described top layer (1) is made of Foamex, thickness is 2mm～3mm, described interlayer (2) is made of elastomeric flexible sheet material, and thickness is 2mm ~ 3mm, and described bottom (3) is made of acoustical cotton.
2. a kind of auto sound damping panel according to claim 1 is characterized in that, described top layer (1) upper surface also is fixed with the porous aluminium foil (4) that thickness is 0.8mm ~ 1.0mm.
3. a kind of auto sound damping panel according to claim 2 is characterized in that, the hole density of described porous aluminium foil (4) is 50/cm
2~ 100/cm
2
4. a kind of auto sound damping panel according to claim 1 is characterized in that, the upper and lower surface of described interlayer (2) all is fixed with the 0.4mm that thickness in monolayer is ~ 0.8mm sheet metal component (5).
5. a kind of auto sound damping panel according to claim 4 is characterized in that, described sheet metal component (5) is cold-rolling steel.
6. a kind of auto sound damping panel according to claim 1 is characterized in that, and is all fixing by the adhesive agent bonding between described top layer (1), interlayer (2) and the bottom (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255378 CN202686211U (en) | 2012-05-31 | 2012-05-31 | Sound-isolating damping plate for automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255378 CN202686211U (en) | 2012-05-31 | 2012-05-31 | Sound-isolating damping plate for automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202686211U true CN202686211U (en) | 2013-01-23 |
Family
ID=47541869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255378 Expired - Fee Related CN202686211U (en) | 2012-05-31 | 2012-05-31 | Sound-isolating damping plate for automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202686211U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149711A (en) * | 2014-08-07 | 2014-11-19 | 镇江洋溢汽车部件有限公司 | Automobile damping plate |
| CN105235609A (en) * | 2015-08-28 | 2016-01-13 | 桂林昌鑫机械制造有限公司 | Novel vehicle damping plate |
| CN105501143A (en) * | 2015-12-22 | 2016-04-20 | 陕西通家汽车股份有限公司 | Multifunctional automobile plate |
| CN105691326A (en) * | 2014-11-24 | 2016-06-22 | 上海新安汽车隔音毡有限公司 | Sound absorption and insulation, damping and water preventing part in automotive body metal plate, and manufacturing method thereof |
| CN105905049A (en) * | 2016-05-06 | 2016-08-31 | 浙江艾迪雅汽车部件新材料有限公司 | Damping board |
| CN106003927A (en) * | 2016-05-06 | 2016-10-12 | 浙江艾迪雅汽车部件新材料有限公司 | Multifunctional damping plate |
| CN106240094A (en) * | 2016-08-10 | 2016-12-21 | 广德天运新技术股份有限公司 | A kind of arrangements for automotive doors silencing pad with electrostatic-proof function |
| CN108116007A (en) * | 2016-11-29 | 2018-06-05 | 上海新安汽车隔音毡有限公司 | Automobile engine nacelle sound-heat insulated cushion of composite construction and preparation method thereof |
| CN108146365A (en) * | 2017-12-01 | 2018-06-12 | 浙江吉润汽车有限公司 | Damping sheet, vehicle body and vehicle |
| CN113978063A (en) * | 2021-10-21 | 2022-01-28 | 湖北吉兴汽车部件有限公司 | Automobile sound-insulation and heat-insulation pad and processing technology thereof |
-
2012
- 2012-05-31 CN CN 201220255378 patent/CN202686211U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149711A (en) * | 2014-08-07 | 2014-11-19 | 镇江洋溢汽车部件有限公司 | Automobile damping plate |
| CN105691326A (en) * | 2014-11-24 | 2016-06-22 | 上海新安汽车隔音毡有限公司 | Sound absorption and insulation, damping and water preventing part in automotive body metal plate, and manufacturing method thereof |
| CN105691326B (en) * | 2014-11-24 | 2017-09-05 | 上海新安汽车隔音毡有限公司 | Sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate |
| CN105235609A (en) * | 2015-08-28 | 2016-01-13 | 桂林昌鑫机械制造有限公司 | Novel vehicle damping plate |
| CN105501143A (en) * | 2015-12-22 | 2016-04-20 | 陕西通家汽车股份有限公司 | Multifunctional automobile plate |
| CN105905049A (en) * | 2016-05-06 | 2016-08-31 | 浙江艾迪雅汽车部件新材料有限公司 | Damping board |
| CN106003927A (en) * | 2016-05-06 | 2016-10-12 | 浙江艾迪雅汽车部件新材料有限公司 | Multifunctional damping plate |
| CN106240094A (en) * | 2016-08-10 | 2016-12-21 | 广德天运新技术股份有限公司 | A kind of arrangements for automotive doors silencing pad with electrostatic-proof function |
| CN108116007A (en) * | 2016-11-29 | 2018-06-05 | 上海新安汽车隔音毡有限公司 | Automobile engine nacelle sound-heat insulated cushion of composite construction and preparation method thereof |
| CN108146365A (en) * | 2017-12-01 | 2018-06-12 | 浙江吉润汽车有限公司 | Damping sheet, vehicle body and vehicle |
| CN113978063A (en) * | 2021-10-21 | 2022-01-28 | 湖北吉兴汽车部件有限公司 | Automobile sound-insulation and heat-insulation pad and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20200531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |