CN204978478U - Wallboard gives sound insulation and fills up before automobile - Google Patents
Wallboard gives sound insulation and fills up before automobile Download PDFInfo
- Publication number
- CN204978478U CN204978478U CN201520424611.9U CN201520424611U CN204978478U CN 204978478 U CN204978478 U CN 204978478U CN 201520424611 U CN201520424611 U CN 201520424611U CN 204978478 U CN204978478 U CN 204978478U
- Authority
- CN
- China
- Prior art keywords
- sound
- layer
- isolating layer
- sound insulation
- puigging
- 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.)
- Active
Links
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model discloses a wallboard gives sound insulation and fills up before automobile, including first puigging, second sound insulation layer and sound absorbing layer, the second give sound insulation the level in between first puigging and the sound absorbing layer, just the second give sound insulation the layer respectively with first puigging with the sound absorbing layer is closely laminated, the area that the second gives sound insulation the layer is lighter than first puigging with the area of sound absorbing layer, just first puigging not with the second give sound insulation part that the laminating closed with the sound absorbing layer is closely laminated. It is the structure of local double -deck puigging that the aforesaid sound insulation is filled up, improves noise proof effect rather than taking with the mode of whole layer puigging thickening, and automobile engine's position is aimed at the position of double -deck puigging to the sound insulation pad of such design when using, strengthen shielding effect to local sound source promptly, can not only play better carriage sound insulation effect, and the while is the cost is reduced also, can not influence the heat -proof quality in addition, and heat and sound isolation's comprehensive properties obtains improving.
Description
Technical field
The utility model relates to technical field of automotive trim, particularly relates to a kind of front wall board of automobile sound insulating pad.
Background technology
Front wall board of automobile sound insulating pad is a kind of part be installed between automobile engine nacelle and instrument carrier panel, comes from the noise of machinery space and the effect of heat because it has can isolate and reduce and is widely used in technical field of automobile.The buffer action of front panel is better, and the NVH characteristic (the noise Noise of automobile, vibration Vibration and sound vibration roughness Harshness) of automobile is better, and then the integral level of automobile design and build guality is higher.
In the prior art, the front panel sound insulating pad of automobile mainly contains two large classes: the first adopts the structure of monolayer material, due to its composition material and organizational structure single, cause the sound isolating and heat insulating performance in actual use procedure poor, the entirety of remote effect automobile uses.The second adopts composite structure, and this kind of structure is compared to single layer structure, although Combination property increases.But, for the isolation effect difference to some extent of different automobile types, this is because the machinery space design of different automobile is different, generate heat not identical with the position of noise, and the soundproof effect of sound source position is most important.
At present, Gao Yuegao is got in the requirement of vehicle buyer to compartment soundproof effect.Therefore, during new model design, under the prerequisite ensureing good heat-blocking action, the deadening of front panel sound insulating pad can more be paid close attention to.Researching and developing new front panel sound insulating pad to meet higher sound isolation requirement and Combination property, is those skilled in the art's problem demanding prompt solutions.
Utility model content
The utility model provides a kind of front wall board of automobile sound insulating pad, to improve the soundproof effect problem of existing front wall board of automobile sound insulating pad.
In order to solve the problems of the technologies described above, the utility model discloses following technical scheme:
A kind of front wall board of automobile sound insulating pad, comprise the first sound isolating layer, the second sound isolating layer and sound absorbing layer, described second sound isolating layer is between described first sound isolating layer and sound absorbing layer, and described second sound isolating layer fits tightly with described first sound isolating layer and described sound absorbing layer respectively; The area of described second sound isolating layer is less than the area of described first sound isolating layer and described sound absorbing layer, and the part that described first sound isolating layer is not fitted with described second sound isolating layer fits tightly with described sound absorbing layer.
Preferably, in above-mentioned front wall board of automobile sound insulating pad, described first sound isolating layer and described second sound isolating layer are EVA rubber matter sound isolating layer; Described sound absorbing layer is PU foaming sound absorbing layer.
Preferably, described first sound isolating layer and described second sound isolating layer bonding laminating.Namely by after high-temperature heating, together, interlayer no longer includes lining cement class material to two-layer self bonding.
Preferably, above-mentioned front wall board of automobile sound insulating pad, the ratio that the area of described second sound isolating layer accounts for described first sound isolating layer area is 25-40%.
Preferably, in above-mentioned front wall board of automobile sound insulating pad, the thickness of described first sound isolating layer and described second sound isolating layer is 1-2.5mm.
From above technical scheme, the front wall board of automobile sound insulating pad that the utility model provides, adopt composite structure, comprise the first sound isolating layer, the second sound isolating layer and sound absorbing layer, described second sound isolating layer between described first sound isolating layer and sound absorbing layer, and fits tightly with described first sound isolating layer and described sound absorbing layer; The area of described second sound isolating layer is less than the area of described first sound isolating layer and described sound absorbing layer, and the part that described first sound isolating layer is not fitted with described second sound isolating layer fits tightly with described sound absorbing layer.
That is, above-mentioned sound insulating pad is the structure of local double layer sound isolating layer, instead of take the mode thickeied by flood sound isolating layer to improve the effect of sound insulation, the sound insulating pad of such design is in use by the position of the position alignment automotive engine of double-deck sound isolating layer, namely shielding action is strengthened to local sound source, better compartment soundproof effect can not only be played, also reduce cost simultaneously, and can not heat-proof quality be affected, the Combination property of heat-insulating sound-insulating is improved.In sum, the front wall board of automobile sound insulating pad that the utility model provides, can provide better sound insulation value under equal cost reasons.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required for embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of front wall board of automobile sound insulating pad that Fig. 1 provides for the utility model embodiment.
Wherein:
1-first sound isolating layer, 2-second sound isolating layer, 3-sound absorbing layer.
Detailed description of the invention
The utility model embodiment provides a kind of front wall board of automobile sound insulating pad, to improve the soundproof effect problem of existing front wall board of automobile sound insulating pad.
Technical scheme in the utility model is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Please refer to the structural representation of a kind of front wall board of automobile sound insulating pad that accompanying drawing 1, Fig. 1 provides for the utility model embodiment.Front wall board of automobile sound insulating pad, front wall board of automobile is exactly by engine compartment and the steel plate taking compartment isolation, its position, near engine room, must have good soundproof effect, and the sound insulating pad of fitting with front panel solves the motor noise problem reducing and enter compartment.The front wall board of automobile sound insulating pad that the utility model embodiment provides comprises the first sound isolating layer 1, second sound isolating layer 2 and sound absorbing layer 3, described second sound isolating layer 2 is between described first sound isolating layer 1 and sound absorbing layer 3, and described second sound isolating layer 2 fits tightly with described first sound isolating layer 1 and described sound absorbing layer 3 respectively.The area of described second sound isolating layer 2 is less than the area of described first sound isolating layer 1 and described sound absorbing layer 3, and the part that described first sound isolating layer 1 is not fitted with described second sound isolating layer 2 fits tightly with described sound absorbing layer 3, that is, there is not gap between the first sound isolating layer 1 and sound absorbing layer 3.
First sound isolating layer 1 of above-mentioned sound insulating pad is in compartment.Sound absorbing layer 3 is near driving engine side.It is the structure of local double layer sound isolating layer, instead of take the mode thickeied by flood sound isolating layer to improve the effect of sound insulation, the sound insulating pad of such design is in use by the position of the position alignment automotive engine of double-deck sound isolating layer, namely shielding action is strengthened to local sound source, better compartment soundproof effect can not only be played, also reduce cost simultaneously, and can not affect heat-proof quality, the Combination property of heat-insulating sound-insulating is improved.Visible, the front wall board of automobile sound insulating pad that the utility model embodiment provides, can provide better sound insulation value.
The front wall board of automobile sound insulating pad that the utility model embodiment provides, first sound isolating layer 1 and described second sound isolating layer 2 are EVA (being the abbreviation of English ethylene-vinylacetate) rubber matter sound isolating layer, Chinese is ethylene-vinyl acetate copolymer, namely the material of the rubber quality of foaming technique is not adopted, this material has good soundproof effect, after local double layer thickeies, the shield effectiveness for local sound source is fine.Described sound absorbing layer 3 is PU (being the abbreviation of English Polyurethane) foaming sound-proof layer, Chinese is called polyurethane and is called for short polyurethane, by in the production process of three-decker compound, because the PU under heated condition has good flowing power, after pressing, the part that the first isolation layer 1 is not fitted with the second isolation layer 2 can be flowed to, fit tightly with the first isolation layer 1.
The front wall board of automobile sound insulating pad that the utility model embodiment provides, the bonding laminating of rubber material of described first sound isolating layer 1 and described second sound isolating layer 2.The technological process made is: be placed on conveyor belt of baking oven by the EVA rubber material of the first isolation layer, utilize Special positioning tool, the EVA material of the second isolation layer correctly located and be placed on tram above the first isolation layer.Correctly arrange baking oven bake out temperature and time, make the heating pipe of above-mentioned two-layer overlapping region continue in running order, provide heat, the individual layer region of the first isolation layer accepts radiant heat.Two-layer rubber under high temperature and gravity pressure, can bond together.Complete after heated baking completes, double-deck rubber is sent from conveyor belt of baking oven, and double-deck rubber is firmly bonding.Under the condition of application identical weight double layer material, adopt the product of above-mentioned explained hereafter can reach better soundproof effect.Further, in whole technological process, do not introduce lining cement, have good supporting function to the VOC performance be improved in passenger accommodation, VOC is the english abbreviation of volatile organic compound (volatileorganiccompounds).For more and more focusing on the customer of environmental protection, the automobile being equipped with the front wall board of automobile sound insulating pad of this kind of explained hereafter is attractive.
We know, the engine location of different automobile types is different, and the size of the local noise of generation is also different, and certainly different vehicles is also different to the requirement of noise in vehicle.And the area of the second sound isolating layer 2 accounts for the ratio of described first sound isolating layer 1 area, namely the area of local double layer is what can affect the shield effectiveness of local noise.According to the knowhow of reality, the ratio that the area of the second sound isolating layer 2 accounts for described first sound isolating layer 1 area is between 25% to 40%, wherein with about 35% time, noiseproof effect is more excellent.
Equally also be based on above-mentioned Consideration, the thickness of described first sound isolating layer 1 and described second sound isolating layer 2 is generally identical, is 1-2.5mm.This is that the applicant draws in long-term test with in producing, and in conjunction with various vehicle and noise-proofing requirement, those skilled in the art can decide the thickness of the sound isolating layer of use in its sole discretion.
The above is only detailed description of the invention of the present utility model, those skilled in the art is understood or realizes the utility model.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
The above is only detailed description of the invention of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a front wall board of automobile sound insulating pad, it is characterized in that, comprise the first sound isolating layer (1), the second sound isolating layer (2) and sound absorbing layer (3), described second sound isolating layer (2) is positioned between described first sound isolating layer (1) and described sound absorbing layer (3), and described second sound isolating layer (2) fits tightly with described first sound isolating layer (1) and described sound absorbing layer (3) respectively; The area of described second sound isolating layer (2) is less than the area of described first sound isolating layer (1) and described sound absorbing layer (3), and the part that described first sound isolating layer (1) is not fitted with described second sound isolating layer (2) fits tightly with described sound absorbing layer (3).
2. front wall board of automobile sound insulating pad according to claim 1, is characterized in that, described first sound isolating layer (1) and described second sound isolating layer (2) are EVA rubber matter sound isolating layer; Described sound absorbing layer (3) is PU foaming sound absorbing layer.
3. front wall board of automobile sound insulating pad according to claim 2, is characterized in that, described first sound isolating layer (1) and described second sound isolating layer (2) bonding laminating.
4. front wall board of automobile sound insulating pad according to claim 1, is characterized in that, the ratio that the area of described second sound isolating layer (2) accounts for described first sound isolating layer (1) area is 25%-40%.
5. front wall board of automobile sound insulating pad according to claim 1, is characterized in that, the thickness of described first sound isolating layer (1) and described second sound isolating layer (2) is 1-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520424611.9U CN204978478U (en) | 2015-06-18 | 2015-06-18 | Wallboard gives sound insulation and fills up before automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520424611.9U CN204978478U (en) | 2015-06-18 | 2015-06-18 | Wallboard gives sound insulation and fills up before automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204978478U true CN204978478U (en) | 2016-01-20 |
Family
ID=55112878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520424611.9U Active CN204978478U (en) | 2015-06-18 | 2015-06-18 | Wallboard gives sound insulation and fills up before automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204978478U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627677A (en) * | 2017-08-28 | 2018-01-26 | 广德天运新技术股份有限公司 | A kind of automotive interior sound insulation pad and manufacture method |
| CN109386862A (en) * | 2018-09-05 | 2019-02-26 | 浙江博净电器有限公司 | A kind of adjustable lower smoke exhaust |
| CN110154935A (en) * | 2019-06-12 | 2019-08-23 | 奇瑞商用车（安徽）有限公司 | Body front wall sound insulating pad and electric car with it |
-
2015
- 2015-06-18 CN CN201520424611.9U patent/CN204978478U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627677A (en) * | 2017-08-28 | 2018-01-26 | 广德天运新技术股份有限公司 | A kind of automotive interior sound insulation pad and manufacture method |
| CN109386862A (en) * | 2018-09-05 | 2019-02-26 | 浙江博净电器有限公司 | A kind of adjustable lower smoke exhaust |
| CN110154935A (en) * | 2019-06-12 | 2019-08-23 | 奇瑞商用车（安徽）有限公司 | Body front wall sound insulating pad and electric car with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2669888B1 (en) | Process for production of a sound-proof material | |
| CN204978478U (en) | Wallboard gives sound insulation and fills up before automobile | |
| CN202116148U (en) | Wallboard for elevator | |
| CN204323243U (en) | For the sound absorption part of electronlmobil | |
| CN202345786U (en) | Reinforced automobile wheel cover | |
| CN104210645B (en) | Sound insulation wall board for airplane | |
| CN204235965U (en) | A kind of car heat insulating pad of noise reduction | |
| CN205705572U (en) | A kind of roof of the vehicle abatvoix | |
| CN107073892A (en) | Apparatus and method for the sound of relief member | |
| CN205256226U (en) | Front wall soundproof pad of automobile | |
| CN203145774U (en) | Light sound insulation metal door | |
| CN203427903U (en) | Foamed aluminum floor for passenger car | |
| CN103434576A (en) | Foamed aluminum floor for passenger car and manufacturing and mounting method thereof | |
| CN206186476U (en) | Hot briquetting car gives sound insulation and fills up structure | |
| CN206093219U (en) | Warm braw water pipe sealing device | |
| CN203145772U (en) | Sound insulating door plate | |
| CN203651655U (en) | Inner decorative composite board for rail vehicle | |
| CN204136902U (en) | A kind of arrangements for automotive doors insulation board and panel | |
| CN203306105U (en) | Improved cover plate of passenger car engine cabin | |
| CN211075785U (en) | Front wall external vibration isolation pad | |
| CN203126862U (en) | Air-conditioner vibration and noise reduction device for non-roof rail train | |
| CN208812961U (en) | A kind of window guide rail and interior water cut integral seal item | |
| CN106240086A (en) | A kind of heat-insulating and sound-absorbing New Composite Wall-slab | |
| CN206477256U (en) | Cross-linking sound barrier | |
| CN207241052U (en) | A kind of composite panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |