CN202038253U - Automobile front wall sound-isolation pad - Google Patents
Automobile front wall sound-isolation pad Download PDFInfo
- Publication number
- CN202038253U CN202038253U CN2010205946036U CN201020594603U CN202038253U CN 202038253 U CN202038253 U CN 202038253U CN 2010205946036 U CN2010205946036 U CN 2010205946036U CN 201020594603 U CN201020594603 U CN 201020594603U CN 202038253 U CN202038253 U CN 202038253U
- Authority
- CN
- China
- Prior art keywords
- sound
- absorbing layer
- sound absorbing
- automobile
- layer
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model relates to an automobile front wall sound-isolation pad, comprising a pad body. The pad body consists of a front sound-absorbing layer, a rear sound-absorbing layer and a sound-isolation layer, wherein the front sound-absorbing layer is formed by compression molding and is made of felt material, the rear sound-absorbing layer is made of sound-absorbing cotton, the sound-isolation layer is arranged between the front sound-absorbing layer and the rear sound-absorbing layer and is made of EVA (ethylene vinyl acetate) hard material, and the front sound-absorbing layer is positioned near to the inner side of an automobile front wall. The automobile front wall sound-isolation pad is easy to assemble and light in mass; and the front sound-absorbing layer effectively reduce the influence the noise of an engine on a driving cabin, and simultaneously, the rear sound-absorbing layer effectively absorbs reflection sound waves in the driving cabin, so that the noise level in the cab can be reduced on the whole.
Description
Technical field
The utility model relates to a kind of automobile-used sound insulating pad, relates in particular to a kind of sound-absorbing sound insulating pad of enclosing before the automobile of being used for.
Background technology
Be widely used in the sound insulating pad of enclosing before the automobile at present, be mostly to place car engine protective cover inboard, be used to absorb the noise that engine sends.Present common sound insulating pad, its structure mainly is a compound spray glue-line on the sheet rubber, when sound insulating pad was placed moulding before automobile, the operation that needs is: 1. rubber mould was molded; 2. need to cut out the shape that needs after rubber mould is pressed through large-scale water cutting machine; 3. the acoustical cotton cross cutting that will unify thickness; 4. spray glue on the rubber skin manually, paste then that cross cutting is good acoustical cotton mating holes position; 5. stick the acoustical cotton piece of variable thickness at the position of needs increase thickness, reach needed thickness requirement.Adopt like this and make, production efficiency is lower, and operation is various, causes cost higher, thereby practicality is not high.
Patent announcement CN201544883U, on August 11 2010 day for announcing, the title of utility model is to enclose sound insulating pad before a kind of new automobile, and it comprises polyester cotton layer and the foamed material layer that is compounded in the polyester cotton laminar surface, foamed material layer is SPE or RSPE foamed strip, and thickness is 1-8mm.The sound absorbing layer that above-mentioned sound insulating pad is made by polyester cotton and constitute by the sound isolating layer that expanded material is made, it mainly is that the noise that engine engine produces is intercepted and the noise in the operator's compartment can not be intercepted, its single-piece soundproof effect is not fine.
Summary of the invention
The utility model is in order to overcome the bad problem of existing sound insulating pad sound-absorbing effect, encloses sound insulating pad before a kind of sound-absorbing, the good automobile of soundproof effect are provided.
The utility model mainly solves by the following technical programs in order to solve above-mentioned technical purpose: enclose sound insulating pad before a kind of automobile, comprise pad, described pad is that the preceding sound absorbing layer of being made by felt materials that formed by compression moulding and the back sound absorbing layer of being made by acoustical cotton and the sound isolating layer of being made by the EVA hard material that is arranged between two sound absorbing layers constitute for three layers.Preceding sound absorbing layer adopts felt materials to make, and felt materials has characteristic fire-retardant and that put out certainly, and superb effectiveness in vibration suppression also possesses superior thermal insulation properties; Sound isolating layer adopts the EVA hard material to make, and its density of EVA hard material is bigger, has airtight abscess, and soundproof effect is good, also possesses against shock, heat-proof quality; Back sound absorbing layer adopts the 3M acoustical cotton to make, and the 3M acoustical cotton has good sound absorption qualities, high adiathermancy, and weight is also light; The noise that engine engine produced is by preceding sound absorbing layer, its part is absorbed, and the heat that engine engine produced is also intercepted by preceding sound absorbing layer, after the noise that sees through passes through sound isolating layer again, its part is intercepted reflection, and the noise that sees through through sound absorbing layer later, is effectively absorbed by the back sound absorbing layer once more, significantly reduced the noise that engine engine produced, the back sound absorbing layer also can absorb the noise that produces in the operator's compartment simultaneously.
As preferably, described before sound absorbing layer thickness be 20mm ~ 40mm.Before sound absorbing layer thickness remain between 20mm ~ 40mm and can actv. to intercept the heat that engine engine produced and to absorb the noise of its generation.
As preferably, described sound isolating layer thickness is 2.5mm ~ 3mm.Sound isolating layer thickness remains between 2.5mm ~ 3mm can play soundproof effect by actv..
As preferably, described back sound absorbing layer thickness is 40mm ~ 60mm.Back sound absorbing layer thickness remains between 40mm ~ 60mm and can actv. to absorb the noise that the noise of coming through the sound isolating layer transmission also can absorb in the operator's compartment to be produced.
As preferably, the preceding sound absorbing layer of being made by felt materials is positioned near before the automobile and encloses the inboard.Preceding sound absorbing layer is positioned near before the automobile and encloses the inboard, mainly is to be used for absorbing noise and the obstruct heat that engine engine produced that engine engine produces.
The utility model compared with prior art has following beneficial effect: enclose sound insulating pad before the automobile provided by the utility model and be easy to assembling, quality is light, its preceding sound absorbing layer has effectively reduced the influence of motor noise to operator's compartment, the back sound absorbing layer can also effectively absorb the reflective sound wave in the operator's compartment simultaneously, reduces the operator's compartment noise level generally.
Description of drawings
Fig. 1: the utility model cutaway view.
Among the figure: sound absorbing layer before the 1-; The 2-sound isolating layer; Sound absorbing layer behind the 3-.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described further.
As shown in Figure 1, enclose sound insulating pad before a kind of automobile, it is formed by sound isolating layer 2 compression moulding between preceding sound absorbing layer 1 and back sound absorbing layer 3 and setting and two sound absorbing layers; Preceding sound absorbing layer 1 adopts felt materials to make; Sound isolating layer 2 adopts the EVA hard material to make; Back sound absorbing layer 3 adopts the 3M acoustical cotton to make.The user only need enclose the inboard before sound insulating pad is installed in automobile with before enclosing, and can realize sound-absorbing, soundproof effect.
The noise that engine engine produced is by preceding sound absorbing layer, its part is absorbed, and the heat that engine engine produced is also intercepted by preceding sound absorbing layer, after the noise that sees through passes through sound isolating layer again, its part is intercepted reflection, and the noise that sees through through sound absorbing layer later, is effectively absorbed by the back sound absorbing layer once more, significantly reduced the noise that engine engine produced, the back sound absorbing layer also can absorb the noise that produces in the operator's compartment simultaneously.
Claims (5)
1. enclose sound insulating pad before an automobile, comprise pad, it is characterized in that: described pad is that the preceding sound absorbing layer of being made by felt materials that formed by compression moulding and the back sound absorbing layer of being made by acoustical cotton and the sound isolating layer of being made by the EVA hard material that is arranged between two sound absorbing layers constitute for three layers.
2. enclose sound insulating pad before a kind of automobile according to claim 1, it is characterized in that described preceding sound absorbing layer thickness is 20mm ~ 40mm.
3. enclose sound insulating pad before a kind of automobile according to claim 1, it is characterized in that described sound isolating layer thickness is 2.5mm ~ 3mm.
4. enclose sound insulating pad before a kind of automobile according to claim 1, it is characterized in that described back sound absorbing layer thickness is 40mm ~ 60mm.
5. according to enclosing sound insulating pad before claim 1 or 2 or the 3 or 4 described a kind of automobiles, it is characterized in that being positioned near before the automobile and enclose the inboard by the preceding sound absorbing layer that felt materials is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205946036U CN202038253U (en) | 2010-11-08 | 2010-11-08 | Automobile front wall sound-isolation pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205946036U CN202038253U (en) | 2010-11-08 | 2010-11-08 | Automobile front wall sound-isolation pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202038253U true CN202038253U (en) | 2011-11-16 |
Family
ID=44965712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205946036U Expired - Fee Related CN202038253U (en) | 2010-11-08 | 2010-11-08 | Automobile front wall sound-isolation pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202038253U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628607A (en) * | 2012-04-20 | 2012-08-08 | 高国辉 | Indoor fresh air purifying method and device |
| CN103512101A (en) * | 2012-06-29 | 2014-01-15 | 马立波 | Method and device for replacing and purifying indoor air |
| CN104044521A (en) * | 2013-03-15 | 2014-09-17 | 凯迪拉克汽车公司 | Three-layer acoustic insulator |
| CN104527533A (en) * | 2014-12-19 | 2015-04-22 | 北汽银翔汽车有限公司 | Novel front wall sound-insulation pad |
| CN104594516A (en) * | 2014-12-09 | 2015-05-06 | 常熟市石林木材有限责任公司 | Wooden acoustic board resistant to impact |
| CN106427817A (en) * | 2016-11-25 | 2017-02-22 | 北汽福田汽车股份有限公司 | Sound-insulating cushion of automobile front wall |
| CN107053801A (en) * | 2017-04-27 | 2017-08-18 | 广西钦州胜腾商务有限公司 | A kind of acoustic material |
| CN108891106A (en) * | 2018-06-08 | 2018-11-27 | 昆山同昌汽车新材料有限公司 | A kind of structure and manufacturing process of sound insulating and absorbing front wall |
| CN109109412A (en) * | 2018-08-24 | 2019-01-01 | 芜湖跃飞新型吸音材料股份有限公司 | A kind of automobile-used sound insulation resilient cushion of disposal molding and preparation method thereof |
| CN114274521A (en) * | 2021-12-15 | 2022-04-05 | 东风汽车集团股份有限公司 | Processing method of sound absorption cotton, sound absorption cotton and wheel cover type sound absorption cotton |
-
2010
- 2010-11-08 CN CN2010205946036U patent/CN202038253U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628607A (en) * | 2012-04-20 | 2012-08-08 | 高国辉 | Indoor fresh air purifying method and device |
| CN103512101A (en) * | 2012-06-29 | 2014-01-15 | 马立波 | Method and device for replacing and purifying indoor air |
| CN104044521A (en) * | 2013-03-15 | 2014-09-17 | 凯迪拉克汽车公司 | Three-layer acoustic insulator |
| CN104594516A (en) * | 2014-12-09 | 2015-05-06 | 常熟市石林木材有限责任公司 | Wooden acoustic board resistant to impact |
| CN104527533A (en) * | 2014-12-19 | 2015-04-22 | 北汽银翔汽车有限公司 | Novel front wall sound-insulation pad |
| CN106427817A (en) * | 2016-11-25 | 2017-02-22 | 北汽福田汽车股份有限公司 | Sound-insulating cushion of automobile front wall |
| CN107053801A (en) * | 2017-04-27 | 2017-08-18 | 广西钦州胜腾商务有限公司 | A kind of acoustic material |
| CN108891106A (en) * | 2018-06-08 | 2018-11-27 | 昆山同昌汽车新材料有限公司 | A kind of structure and manufacturing process of sound insulating and absorbing front wall |
| CN109109412A (en) * | 2018-08-24 | 2019-01-01 | 芜湖跃飞新型吸音材料股份有限公司 | A kind of automobile-used sound insulation resilient cushion of disposal molding and preparation method thereof |
| CN114274521A (en) * | 2021-12-15 | 2022-04-05 | 东风汽车集团股份有限公司 | Processing method of sound absorption cotton, sound absorption cotton and wheel cover type sound absorption cotton |
| CN114274521B (en) * | 2021-12-15 | 2023-10-03 | 东风汽车集团股份有限公司 | Processing method of sound-absorbing cotton, sound-absorbing cotton and wheel cover type sound-absorbing cotton |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202038253U (en) | Automobile front wall sound-isolation pad | |
| KR101898747B1 (en) | Sound-proof material and process for production thereof, sound-proof molding, and sound insulation method | |
| CN103661150B (en) | Sound-absorbing damping vibration attenuation parts of automobile and its preparation method and application | |
| CN202573187U (en) | Automotive acoustic liner | |
| CN103738037B (en) | A kind of medium and low frequency acoustical and thermal composite panel | |
| CN201736923U (en) | Automotive front wall sound insulation pad | |
| CN202896472U (en) | Vibration reduction sound absorption part on automobile body | |
| CN105235332B (en) | Ceiling sheet material of the composite regenerated foam compacting of automobile inner decoration facing and preparation method thereof | |
| CN205881450U (en) | Composite sheet and have its car | |
| CN202863316U (en) | Sound absorption device arranged on seat | |
| CN203666551U (en) | Sound absorption damping vibration attenuation component of automobile | |
| CN204622725U (en) | A kind of automobile roof sound insulation cushion with damping and silencing | |
| CN201511906U (en) | Sound insulation cushion for fenders | |
| CN214822387U (en) | Tire silence is cotton | |
| CN202863304U (en) | Sound absorption automobile inner decorating plate | |
| CN201136469Y (en) | Vibration damping and deadening felt | |
| CN213649495U (en) | Improve sound insulation pad of fire-retardant syllable-dividing effect of car | |
| CN206494009U (en) | A kind of automobile with low-frequency sound-absorbing structure | |
| CN210851601U (en) | Sound-insulation and sound-beautifying sheet and sound-insulation and sound-beautifying system of automobile | |
| CN208715120U (en) | A kind of automobile front wall sound-isolation heat insulating mattress | |
| CN110154935B (en) | Enclose before automobile body and give sound insulation and fill up and have its electric automobile | |
| CN203005309U (en) | Noise insulation device for front wall of engine compartment | |
| CN202720892U (en) | Sound insulating and absorbing cotton | |
| CN205022103U (en) | Ceiling sheet of cotton suppression of compound regeneration bubble of car interior fabric | |
| CN205149721U (en) | Enclose underlay before car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20111116 Termination date: 20131108 |