CN203666551U - Sound absorption damping vibration attenuation component of automobile - Google Patents
Sound absorption damping vibration attenuation component of automobile Download PDFInfo
- Publication number
- CN203666551U CN203666551U CN201320782891.1U CN201320782891U CN203666551U CN 203666551 U CN203666551 U CN 203666551U CN 201320782891 U CN201320782891 U CN 201320782891U CN 203666551 U CN203666551 U CN 203666551U
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- sound
- sound absorption
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- 238000013016 damping Methods 0.000 title claims abstract description 58
- 238000010521 absorption reaction Methods 0.000 title abstract description 11
- 229920000742 Cotton Polymers 0.000 claims abstract description 16
- 239000010409 thin film Substances 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 13
- 239000003063 flame retardant Substances 0.000 claims description 11
- 230000001464 adherent effect Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000010408 film Substances 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
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- 239000010410 layer Substances 0.000 abstract 7
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model discloses a sound absorption damping vibration attenuation component of an automobile. The sound absorption damping vibration attenuation component comprises an isolation anti-sticking layer, an adhesive damping layer, an inflaming retarding sound absorption cotton layer and a micro-hole sound absorption thin film coating layer. The micro-hole sound absorption thin film coating layer coats and quilts the inflaming retarding sound absorption cotton layer and coated with the adhesive damping layer. The isolation anti-sticking layer is composited on the adhesive damping layer. According to the sound absorption damping vibration attenuation component of the automobile, vibrating energy and noise can be absorbed when the automobile moves, the comfort level of passengers is improved, the acoustic fatigue of driving is reduced, automobile driving accidents are reduced, and indoor air odor pollution of the automobile cannot be caused.
Description
Technical field
The utility model relates to sound-absorbing damping vibration attenuation field of components, particularly relates to a kind of sound-absorbing damping vibration attenuation parts of automobile.
Background technology
Car noise major part is imported into by car acoustic vibration, damping fin is all installed in all small passenger cars, damping fin is a kind of visco-elastic material that is attached to vehicle body inside face, be close on the steel plate wall of vehicle body, be mainly the effect that to reduce noise in order playing, to reduce vibrations, that is to say and play shock damping action.In the country of the auto-industry prosperities such as America and Europe, car damping sheet generally all uses macromolecule resin material, or elastomeric material is as raw MAT'L, and is aided with partially modified extraordinary high damping material, is equipped with mixing the forming such as appropriate extending agent, soften flux, aging inhibitor.The damping fin physics and chemistry stable performance that High molecular material or elastomeric material are made, there is good vibration and noise reducing, resistance to effect of heat, resistance to cold, anti-old property and extremely strong gleyness, to human body without any spread effect, to corrosion-free effects of material such as metal, plastics, rubber.
In March, 2013 CCTV's quality report program exposure three large limousine brands are used pitch damping fin, cause in-car air quality gross pollution.After testing, the damping fin of these vehicles all contains pitch composition No. 70.The damping fin of these vehicles all contains pitch composition No. 70, and the damping fin price that contains pitch composition is approximately 1/3rd of resin, rubber; Expert points out, after these import brand cars are domestic, why adopting pitch and not adopting the environment-friendly materials such as resin, rubber, one side is there is no the concerned countries standard about auto parts and components and auxiliary material because of current China, on the other hand, use pitch can reduce the productive costs of enterprise; Therefore,, after a lot of import brand cars are domestic, there is the phenomenon of the damping fin of making of pitch.
Automobile component adopts and contains No. 70 bonding fur-felts of pitch composition damping fin as sound-proof damping material, because soundproof effect is not obvious, and has caused automobile indoor air smell pollution; Cut sound so can obviously experience the wind of external noise, mechanical vibration noise, tire friction noise and Che Shengyu windage in operator's compartment, the interior driver of automobile and occupant are easily felt sleepy, affect healthyly, automobile indoor air peculiar smell and noise emission cause traffic accident to take place frequently.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of sound-absorbing damping vibration attenuation parts of automobile, the energy that can absorb vibration in the time that automobile is advanced can absorb again the noise that automobile is advanced, the comfort level of automobile passenger will be improved greatly, greatly reduce the acoustic fatigue of driving, reduce the generation of train operation accident, and can not cause automobile indoor air smell pollution.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the sound-absorbing damping vibration attenuation parts that a kind of automobile is provided, comprise: isolation adherent layer, adhesion agent damping layer, fire-retardant acoustical cotton layer and micropore absorptive thin film clad, the coated top gem of a girdle-pendant of described micropore absorptive thin film clad stitches fire-retardant acoustical cotton layer, coating binder damping layer on described micropore absorptive thin film clad, compound isolation adherent layer on described adhesion agent damping layer.
In preferred embodiment of the utility model, described micropore absorptive thin film clad is eptfe film or expanded PTFE modified film.
In preferred embodiment of the utility model, described isolation adherent layer is parting paper.
In preferred embodiment of the utility model, described fire-retardant acoustical cotton layer is the cotton layer of polypropylene flame redardant layer or polyester microfiber.
The beneficial effects of the utility model are:
1, the sound-absorbing damping vibration attenuation parts of the utility model automobile absorb the energy vibrating and can absorb again the noise that automobile is advanced in the time that automobile is advanced, the comfort level of automobile passenger will be improved greatly, greatly reduce the acoustic fatigue of driving, reduce the generation of train operation accident, and can not cause automobile indoor air smell pollution.
2, the sound-absorbing damping vibration attenuation parts of the utility model automobile have the high and low density of sound absorption qualities, strong, the compressible performance of the chamber ability of filling a vacancy is strong, high temperature resistant property is good, flame resistance, viscoelastic property are good, sound insulation, heat insulation, etc. advantage.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of sound-absorbing damping vibration attenuation parts one preferred embodiment of the utility model automobile;
In accompanying drawing, the mark of each parts is as follows: 1, isolation adherent layer, 2, adhesion agent damping layer, 3, fire-retardant acoustical cotton layer, 4, micropore absorptive thin film clad.
Detailed description of the invention
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model embodiment comprises:
A kind of sound-absorbing damping vibration attenuation parts of automobile, comprise: isolation adherent layer 1, adhesion agent damping layer 2, fire-retardant acoustical cotton layer 3 and micropore absorptive thin film clad 4, the described coated top gem of a girdle-pendant of micropore absorptive thin film clad 4 stitches fire-retardant acoustical cotton layer 3, coating binder damping layer 2 on described micropore absorptive thin film clad 4, compound isolation adherent layer 1 on described adhesion agent damping layer 2.
In the utility model, described micropore absorptive thin film clad 4 is eptfe film or expanded PTFE modified film.
In the utility model, described isolation adherent layer 1 is parting paper, plays isolation antiseized, and protection adhesion agent is avoided polluting, the effect of ease of assembly.
In the utility model, described fire-retardant acoustical cotton layer 3 is the cotton layer of polypropylene flame redardant layer or polyester microfiber.
The coated top gem of a girdle-pendant of eptfe film or expanded PTFE modified film stitches significantly sound absorbing mechanism and spectrum character of fire-retardant acoustical cotton poromerics: the sound absorbing mechanism of sound-absorbing porous material is that (micropore diameter is less than 30 μ m) when material, causes the air vibration in hole when sound wave incides intensive porous.Due to the viscous resistance of friction and air, make a part of acoustic energy be transformed into heat energy; In addition, the heat conduction between the air in hole and hole wall, fiber, also can cause egress of heat, makes sound energy attenuation reduce noise decibel value.Because eptfe film or expanded PTFE modified film have micron-sized dense micropore, make the noise of 40Hz ~ 10000 Hz can significantly absorb noise reduction.Full range sound-absorbing effect is fairly obvious, and especially centering low frequency noise absorbs better, and on automobile, to be absorbed degree large for noise, and its environmental noise will greatly reduce, and give comfortable environment of people.Noise deletes through multiple reflections in the sound-absorbing damping vibration attenuation parts of automobile, and noise significantly reduces, and sound-absorbing effect obviously improves improvement.
The energy that the sound-absorbing damping vibration attenuation parts of the utility model automobile absorb vibration in the time that automobile is advanced can absorb again the noise that automobile is advanced, the comfort level of automobile passenger will be improved greatly, greatly reduce the acoustic fatigue of driving, reduce the generation of train operation accident, and can not cause automobile indoor air smell pollution, simultaneously with the high and low density of sound absorption qualities, the advantage such as strong, the compressible performance of the chamber ability of filling a vacancy is strong, high temperature resistant property is good, flame resistance, viscoelastic property are good, sound insulation, heat insulation, weather resisting property is strong.Specifically comprise:
1) full range sound-absorbing effect is fairly obvious, especially centering low frequency noise absorbs better, on automobile, to be absorbed degree large for noise, its environmental noise will greatly reduce, give comfortable environment of people, noise deletes through multiple reflections in the sound-absorbing damping vibration attenuation parts of automobile, and noise significantly reduces, and sound-absorbing effect obviously improves improvement.
2) the sound-absorbing damping vibration attenuation parts of automobile can solve: can in wide temperature/frequency limit, bring into play vibration damping, noise reduction, noise elimination and sound insulation effect.
3) environment-protective no-smell: the nontoxic free from extraneous odour of sound-absorbing damping vibration attenuation parts of automobile, non-volatility gas, nuisanceless pollution, containing carcinogen; Operation is the pungency to skin without similar glass fibre, can carry out Punching Technology, produces dust chip etc. unlike other products.
4) flame resistance: the sound-absorbing damping vibration attenuation parts of automobile have good resistance to effect of heat, can be used for a long time 180 DEG C of left and right, and fire resistance (flame resistance) material meets automotive trim requirement completely, improves life and property safety.
5) protection against the tide: the sound-absorbing damping vibration attenuation parts hydrophobic of automobile is good, without mouldy, bacteria breed, rots and the generation of bad smell, guarantees long-time stability.Under wet environment, sound absorption coefficient is constant, and water absorbing capacity is no more than 1% of own wt, and easily dry.
6) anti-aging: the sound-absorbing damping vibration attenuation parts of automobile are identical with the motor live time phase.
7) plasticity: the sound-absorbing damping vibration attenuation component density of automobile is little, easy and simple to handle, compressible and deformability is applicable to different size or tight quarters, provide greater flexibility to product design, product quality softness, very light in weight, is easy to install, adhesion agent damping has high self-adhesion effect, and dress pastes easily.
8) high insulation: the sound-absorbing damping vibration attenuation parts of automobile have good insulating power, because it absorbs water hardly, therefore insulating power are not subject to the impact of humidity.
9) heat retaining property: the sound-absorbing damping vibration attenuation parts of automobile can be protected the loss of automotive interior heat in winter, can intercept importing in car of outside heat in summer.
10) the sound-absorbing damping vibration attenuation parts of automobile contribute to reduce the radiation of sound producing because of mechanical vibration, reduce mechanical noise, and the noise of car crust, is mainly caused by vibration, adopt damping energy actv. to suppress resonance, thereby reduce noise.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. the sound-absorbing damping vibration attenuation parts of an automobile, it is characterized in that, comprise: isolation adherent layer, adhesion agent damping layer, fire-retardant acoustical cotton layer and micropore absorptive thin film clad, the coated top gem of a girdle-pendant of described micropore absorptive thin film clad stitches fire-retardant acoustical cotton layer, coating binder damping layer on described micropore absorptive thin film clad, compound isolation adherent layer on described adhesion agent damping layer.
2. the sound-absorbing damping vibration attenuation parts of automobile according to claim 1, is characterized in that, described micropore absorptive thin film clad is eptfe film or expanded PTFE modified film.
3. the sound-absorbing damping vibration attenuation parts of automobile according to claim 1, is characterized in that, described isolation adherent layer is parting paper.
4. the sound-absorbing damping vibration attenuation parts of automobile according to claim 1, is characterized in that, described fire-retardant acoustical cotton layer is the cotton layer of polypropylene flame redardant layer or polyester microfiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782891.1U CN203666551U (en) | 2013-12-03 | 2013-12-03 | Sound absorption damping vibration attenuation component of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782891.1U CN203666551U (en) | 2013-12-03 | 2013-12-03 | Sound absorption damping vibration attenuation component of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203666551U true CN203666551U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320782891.1U Expired - Lifetime CN203666551U (en) | 2013-12-03 | 2013-12-03 | Sound absorption damping vibration attenuation component of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203666551U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661150A (en) * | 2013-12-03 | 2014-03-26 | 常州市泛亚微透科技有限公司 | Automotive acoustic damping component and production method and application thereof |
| CN105438109A (en) * | 2014-09-18 | 2016-03-30 | 福特全球技术公司 | Energy absorbers for roof system and other vehicle structures |
| CN111038025A (en) * | 2019-12-31 | 2020-04-21 | 湖北天运消音防振新材料有限公司 | Interior decoration sound-absorbing cotton |
| 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 |
-
2013
- 2013-12-03 CN CN201320782891.1U patent/CN203666551U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661150A (en) * | 2013-12-03 | 2014-03-26 | 常州市泛亚微透科技有限公司 | Automotive acoustic damping component and production method and application thereof |
| CN103661150B (en) * | 2013-12-03 | 2016-04-06 | 江苏泛亚微透科技股份有限公司 | Sound-absorbing damping vibration attenuation parts of automobile and its preparation method and application |
| CN105438109A (en) * | 2014-09-18 | 2016-03-30 | 福特全球技术公司 | Energy absorbers for roof system and other vehicle structures |
| CN111038025A (en) * | 2019-12-31 | 2020-04-21 | 湖北天运消音防振新材料有限公司 | Interior decoration sound-absorbing cotton |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213165 No. 28-8 Sakamoto Road, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213165 No. 28-8 Sakamoto Road, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (CHANGZHOU) Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |
Address after: 213000 No.8 Qiancao Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213165 No. 28-8 Sakamoto Road, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (JIANGSU) Corp. |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| CX01 | Expiry of patent term |