CN206954143U - Sound insulating pad and automobile - Google Patents
Sound insulating pad and automobile Download PDFInfo
- Publication number
- CN206954143U CN206954143U CN201720628169.0U CN201720628169U CN206954143U CN 206954143 U CN206954143 U CN 206954143U CN 201720628169 U CN201720628169 U CN 201720628169U CN 206954143 U CN206954143 U CN 206954143U
- Authority
- CN
- China
- Prior art keywords
- absorbing layer
- sound
- sound absorbing
- insulating pad
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002657 fibrous material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000001976 improved effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- -1 regeneration blanket Polymers 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000012814 acoustic material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model embodiment discloses a kind of sound insulating pad, and it includes：First sound absorbing layer, puigging and the second sound absorbing layer, for puigging between the first sound absorbing layer and the second sound absorbing layer, puigging is the part that the second sound absorbing layer is penetrated into the first sound absorbing layer.The utility model embodiment also discloses a kind of automobile, including car body and sound insulating pad as described above, and the second sound absorbing layer of sound insulating pad is fixedly installed on car body.In the case where keeping sound insulating pad sound insulation value constant, compared with making puigging using single material in the prior art, the surface density of puigging can be reduced using the utility model embodiment, and then reduces the weight and production cost of sound insulating pad, but also the soundproof effect to low frequency noise can be improved.
Description
Technical field
The utility model embodiment is related to automobile technical field, and in particular to a kind of sound insulating pad and automobile.
Background technology
At present, the sound insulating pad of automobile using mainly includes traditional sound insulating pad and dissipative type sound insulating pad.
Traditional sound insulating pad is mainly bonded by puigging 1 ' and sound absorbing layer 2 ', puigging 1 ' with sound absorbing layer 2 ', sound absorbing layer 2 '
For being fitted in vehicle body sheet metal, as shown in Figure 1.Puigging 1 ' uses EVA (Ethylene/vinyl Acetate
Copolymer, ethylene-vinyl acetate copolymer), PVC (Polyvinyl chloride, polyvinyl chloride), the material system such as rubber
Into sound absorbing layer 2 ' can use polyurethane foam, regeneration blanket, PET (Polyethylene Terephthalate, to gather to benzene two
Formic acid glycol ester resin) etc. material be made.The surface density of puigging 1 ' is bigger, can be also bigger every the noise fallen.Therefore, it is
Ensure soundproof effect, the surface density of puigging 1 ' is all larger, causes traditional sound insulating pad weight larger, is unfavorable for the loss of weight of vehicle
With the installation of sound insulating pad.
As shown in Fig. 2 dissipative type sound insulating pad includes the first sound absorbing layer 3 ', sound deadening sheet 4 ' and the second sound absorbing layer 5 ', two suctions
Sound-absorbing layer is bonded after being melted by sound deadening sheet 4 '.Second sound absorbing layer 5 ' uses low density acoustic material, for being fitted in vehicle body
On metal plate.First sound absorbing layer 3 ' is high density sound-absorbing material.High density sound-absorbing material has been provided simultaneously with the performance of sound insulation and sound-absorbing,
Although the soundproof effect than traditional sound insulating pad in terms of soundproof effect is poor, it can be by being absorbed into making an uproar in cabin
Sound, to compensate the loss in terms of sound insulation value, so as to reach the noise reduction equivalent with traditional sound insulating pad.But dissipative type
Sound insulating pad is limited to the noise reduction of low frequency noise.
Utility model content
In view of this, the utility model embodiment proposes a kind of sound insulating pad and automobile, to solve above-mentioned technical problem.
The utility model embodiment proposes a kind of sound insulating pad, and it includes：First sound absorbing layer, puigging and the second sound absorbing layer,
For puigging between the first sound absorbing layer and the second sound absorbing layer, the puigging is that the second sound absorbing layer is penetrated into the first sound absorbing layer
A part.
Alternatively, the thickness of the second sound absorbing layer is more than the thickness of the first sound absorbing layer.
Alternatively, the thickness of the first sound absorbing layer is more than the thickness of puigging.
Alternatively, the material of the first sound absorbing layer is fibrous material.
Alternatively, the material of the second sound absorbing layer is expanded material.
Alternatively, the surface density of puigging is 1.5-2.5kg/m2。
The utility model embodiment proposes a kind of automobile, and it includes car body and sound insulating pad as described above, the of sound insulating pad
Two sound absorbing layers are fixedly installed on car body.
Alternatively, the second sound absorbing layer is fitted on car body.
The sound insulating pad and automobile that the utility model embodiment provides are penetrated into the first sound absorbing layer by the second sound absorbing layer to be formed
Puigging, in the case where keeping sound insulating pad sound insulation value constant, with making puigging phase using single material in the prior art
Than, the surface density of puigging can be reduced, and then the weight and production cost of sound insulating pad are reduced, but also can improve to low frequency noise
Soundproof effect.
Brief description of the drawings
Fig. 1 is the structural representation of traditional sound insulating pad in the prior art.
Fig. 2 is the structural representation of dissipative type sound insulating pad in the prior art.
Fig. 3 is the structural representation of the sound insulating pad of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.Wherein phase
Same parts are presented with like reference characters.It should be noted that the word "front", "rear" used below in description,
"left", "right", "up" and "down" refer to the direction in accompanying drawing, and word " interior " and " outer " are referred respectively to towards or away from specific
The direction at component geometry center.
Embodiment one
Fig. 3 shows the structural representation of the sound insulating pad of the utility model embodiment, and it includes：First sound absorbing layer 1, sound insulation
The sound absorbing layer 3 of layer 2 and second, for puigging 2 between the first sound absorbing layer 1 and the second sound absorbing layer 3, puigging 2 is the second sound absorbing layer 3
The part penetrated into the first sound absorbing layer 1.
During processing, into mould, the material of the second sound absorbing layer 3 of injection formation, the material of the second sound absorbing layer 3 act in pressure
Puigging 2 is formed in the first sound absorbing layer 1 of lower infiltration, can shape after the first sound absorbing layer 1, the sound absorbing layer 3 of puigging 2 and second consolidation
Into sound insulating pad.Directly the second sound absorbing layer 3 is fitted on car body metal plate during use.Second sound absorbing layer 2 penetrates into the first suction
Puigging 2 is formed in sound-absorbing layer 1 so that the structure of puigging 2 is finer and close, so as to improve the isolation to low frequency noise
Energy.
The sound insulating pad that the utility model embodiment provides is penetrated into the first sound absorbing layer by the second sound absorbing layer forms puigging,
In the case where keeping sound insulating pad sound insulation value constant, compared with making puigging using single material in the prior art, can drop
The surface density of low puigging, and then reduce the weight and production cost of sound insulating pad；But also the sound insulation to low frequency noise can be improved
Effect.
Embodiment two
On the basis of embodiment one, alternatively, as shown in figure 3, the thickness of the second sound absorbing layer 3 is more than the first sound absorbing layer 1
Thickness.Second sound absorbing layer 3 is used to be arranged on car body metal plate, by increasing the thickness of the second sound absorbing layer 3, when sound transmission enters
After entering the aperture in the second sound absorbing layer 3, sound can be made in the second sound absorbing layer internal reflection apart from elongated, more sound waves change into heat
Can, excellent noise reduction effect.
Alternatively, the thickness of the first sound absorbing layer 1 is more than the thickness of puigging 2, may be such that the thickness of puigging diminishes, and reduces
The weight of sound insulating pad, but also time of penetration can be reduced, reduce cost of manufacture.
In the utility model embodiment, the material of the first sound absorbing layer 1 is fibrous material.The material of second sound absorbing layer 3 is
Expanded material, such as polyurethane foam.Puigging 2 is that expanded material is formed in infiltrated fiber material under pressure.
In the utility model embodiment, the surface density of puigging 2 is 1.5-2.5kg/m2, it is and traditional in the prior art
(surface density of puigging is about 5kg/m to the puigging of sound insulating pad2) compare, the surface density of puigging is greatly reduced, is reduced
The weight and cost of sound insulating pad, so as to facilitate the installation of sound insulating pad.
Embodiment three
The utility model embodiment additionally provides a kind of automobile, and it includes car body and such as embodiment one or the institute of embodiment two
The sound insulating pad stated, the second sound absorbing layer of sound insulating pad are fixedly installed on car body.
Alternatively, the second sound absorbing layer is fitted on car body, to improve the installation effectiveness of sound insulating pad.
The automobile that the utility model embodiment provides by the way that the second sound absorbing layer is fitted on car body, by second inhaled by puigging
Sound-absorbing layer, which is penetrated into the first sound absorbing layer, to be formed, and compared with making puigging using single material in the prior art, can reduce puigging
Surface density, and then reduce sound insulating pad weight and production cost；But also the soundproof effect to low frequency noise can be improved.
More than, the technical solution of the utility model is described in detail in conjunction with specific embodiments, described is specific
Embodiment is used to help understand thought of the present utility model.Those skilled in the art are on the basis of the utility model specific embodiment
On the derivation made and modification fall within scope of protection of the utility model.
Claims (8)
- A kind of 1. sound insulating pad, it is characterised in that including：First sound absorbing layer, puigging and the second sound absorbing layer, puigging are located at first Between sound absorbing layer and the second sound absorbing layer, the puigging is the part that the second sound absorbing layer is penetrated into the first sound absorbing layer.
- 2. sound insulating pad as claimed in claim 1, it is characterised in that the thickness of the second sound absorbing layer is more than the thickness of the first sound absorbing layer Degree.
- 3. sound insulating pad as claimed in claim 2, it is characterised in that the thickness of the first sound absorbing layer is more than the thickness of puigging.
- 4. the sound insulating pad as described in claim 1-3 is any, it is characterised in that the material of the first sound absorbing layer is fibrous material.
- 5. sound insulating pad as claimed in claim 4, it is characterised in that the material of the second sound absorbing layer is expanded material.
- 6. sound insulating pad as claimed in claim 5, it is characterised in that the surface density of puigging is 1.5-2.5kg/m2。
- A kind of 7. automobile, it is characterised in that the sound insulating pad including car body and as described in claim 1-6 is any, the of sound insulating pad Two sound absorbing layers are fixedly installed on car body.
- 8. automobile as claimed in claim 7, it is characterised in that the second sound absorbing layer is fitted on car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720628169.0U CN206954143U (en) | 2017-06-01 | 2017-06-01 | Sound insulating pad and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720628169.0U CN206954143U (en) | 2017-06-01 | 2017-06-01 | Sound insulating pad and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206954143U true CN206954143U (en) | 2018-02-02 |
Family
ID=61379743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720628169.0U Expired - Fee Related CN206954143U (en) | 2017-06-01 | 2017-06-01 | Sound insulating pad and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206954143U (en) |
-
2017
- 2017-06-01 CN CN201720628169.0U patent/CN206954143U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 |