CN205836118U - Sound insulating pad and vehicle - Google Patents
Sound insulating pad and vehicle Download PDFInfo
- Publication number
- CN205836118U CN205836118U CN201620380412.7U CN201620380412U CN205836118U CN 205836118 U CN205836118 U CN 205836118U CN 201620380412 U CN201620380412 U CN 201620380412U CN 205836118 U CN205836118 U CN 205836118U
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- sound insulating
- insulating pad
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- muscle
- vehicle
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Abstract
The utility model discloses a kind of sound insulating pad and vehicle, described sound insulating pad includes being positioned at outermost PU foaming layer, the side towards outside of described PU foaming layer is formed with multiple shrinkage pool.The sound insulating pad of this utility model offer and vehicle, the soundproof effect of sound insulating pad is good, it is possible in effectively stoping the incoming driver's cabin of noise of enging cabin.
Description
Technical field
This utility model relates to technical field of vehicle, particularly to a kind of sound insulating pad and vehicle.
Background technology
In the process of moving, electromotor can produce substantial amounts of noise to vehicle, the incoming driving of noise for avoiding enging cabin
Room affects and on driving environment, the generally front panel between enging cabin and driver's cabin, sound insulating pad is set, to play sound insulation
Effect.
The sound insulation used on vehicle is lined with various structures, but current sound insulating pad sound insulation value is poor, it is desirable to provide sound insulation is imitated
The best sound insulating pad reduces the noise in incoming driver's cabin, to promote automotive quality further.
Utility model content
In view of this, this utility model is directed to a kind of sound insulating pad and vehicle, passes in order to solve the noise of enging cabin
The problem entering driver's cabin and affect driving environment.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
This utility model provides a kind of sound insulating pad, and described sound insulating pad includes being positioned at outermost PU foaming layer, and described PU sends out
Multiple shrinkage pool it is formed with on the side towards outside of alveolar layer.
Further, the wall of described pit is formed as spheric.
Further, the degree of depth of described pit is 5-10mm, a diameter of 20-40mm.
Further, described sound insulating pad is additionally included in the EVA that the side deviating from described pit of described PU foaming layer is arranged
Layer.
Further, described EVA layer is formed by injection, and described EVA layer is formed as the thick structure such as not.
Further, described EVA layer being formed with perforate, the edge of described perforate is formed with reinforcement.
Further, described reinforcement includes the ring-type muscle around described perforate, is provided with along institute around described ring-type muscle
That states that ring-type muscle extends laterally multiple dissipates muscle, described in dissipate the end away from described ring-type muscle of muscle and connect and have dowel.
Further, described sound insulating pad also includes the sound-absorbing being positioned at the side deviating from described PU foaming layer of described EVA layer
Cotton layer, also includes the nonwoven layer being positioned at the side deviating from described EVA layer of described acoustical cotton layer.
Further, described PU depth of foam is 10-35mm, and described EVA layer thickness is 2-5mm, described acoustical cotton layer
Thickness is 8-10mm.
The sound insulating pad that this utility model provides, by arranging shrinkage pool, it is possible to increase the sound absorption face of sound insulating pad in PU foaming layer
Long-pending, thus strengthen the sound-absorbing effect of sound insulating pad.When sound insulating pad is applied in the front panel of vehicle, can effectively stop electromotor
In the incoming driver's cabin of noise in cabin.
This utility model also provides for a kind of vehicle, and described vehicle is provided with front panel, described front panel towards driver's cabin
Side be fixed with sound insulating pad as above, the described PU foaming layer of described sound insulating pad is fixed in described front panel.
Described vehicle is identical with above-mentioned sound insulating pad relative to prior art have the advantage that, does not repeats them here.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and this practicality is new
The schematic description and description of type is used for explaining this utility model, is not intended that improper restriction of the present utility model.?
In accompanying drawing:
Fig. 1 is the structural representation of sound insulating pad in an embodiment of the present utility model；
Fig. 2 is the structural representation of PU foaming layer in sound insulating pad；
Fig. 3 is the sectional view of the PU foaming layer in Fig. 2；
Fig. 4 is the structural representation arranging reinforcement on EVA layer around perforate；
Fig. 5 is the schematic diagram that acoustical cotton layer and nonwoven layer form helmholtz resonance chamber；
Fig. 6 is the soundproof effect pair that the PU foaming layer dimpled sound insulating pad of tool and PU foaming layer do not have dimpled sound insulating pad
Than figure.
Description of reference numerals:
1-PU foaming layer；11-pit；
2-EVA layer；21-perforate；
The ring-type muscle of 22-；23-dissipates muscle；
24-dowel；3-acoustical cotton layer；
4-nonwoven layer.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can
To be mutually combined.
This utility model provides a kind of sound insulating pad, and this sound insulating pad includes being positioned at outermost PU (Polyurethane, poly-ammonia
Carbamate) foaming layer 1, the side towards outside of this PU foaming layer 1 is formed multiple shrinkage pool 11.
The sound insulating pad that this utility model provides, by arranging shrinkage pool 11, it is possible to increase the sound absorption of sound insulating pad in PU foaming layer 1
Area, thus strengthens the sound-absorbing effect of sound insulating pad.When sound insulating pad is applied in the front panel of vehicle, can effectively stop and start
In the incoming driver's cabin of noise in cabin.
The sound insulating pad provided this utility model below in conjunction with the accompanying drawings is described in detail.
As shown in Figure 1-Figure 3, sound insulating pad is positioned in outermost PU foaming layer 1 and is formed with multiple shrinkage pool 11, it is preferable that
The wall of this shrinkage pool 11 is generally formed into spheric.Preferably, degree of depth h of described pit 11 is 5-10mm, and diameter d is 20-
40mm.Certainly, the shape and size of shrinkage pool 11 are not limited to as set above, in the PU foaming layer 1 of sound insulating pad formed any its
The shrinkage pool of his shape or size all can increase absorption area, belongs to protection domain of the present utility model.
In present embodiment, described sound insulating pad is additionally included in the EVA that the side deviating from pit 11 of PU foaming layer 1 is arranged
(Ethylene Vinyl Acetate, ethene-vinyl acetate copolymer) layer 2.
Preferably, described EVA layer 2 is formed by Shooting Technique, and the EVA layer 2 that Shooting Technique is formed is compared by plastic uptake work
Skill is formed, and configuration state can reach required design point.
Preferably, EVA layer 2 is formed as not waiting thick structure, first in the operating mode that sound insulating pad is applied, according to noise source
Fixation and recognition goes out the position that sound source is more concentrated, and then EVA layer 2 carries out at the position that sound source is more concentrated local and thickeies, with
Preferably stop the noise that sound source transmits.
When sound insulating pad is applied in the front panel of vehicle, pass through owing to needing various circuit in front panel, therefore,
Sound insulating pad is also equipped with the perforate making each circuit pass through.
As shown in Figure 4, EVA layer 2 is formed with multiple perforate 21 (each layer of sound insulating pad has all been correspondingly formed perforate), for keeping away
The marginal laceration exempting from each perforate 21 causes sound to be revealed, it is preferable that the edge in described perforate 21 is formed with reinforcement.
The version of reinforcement may be configured as multiple.In present embodiment, it is preferable that as shown in Figure 4, perforate 21 edge
The reinforcement at place includes the ring-type muscle 22 around described perforate 21, is provided with along described ring-type muscle 22 laterally around ring-type muscle 22
Extend multiple dissipates muscle 23, described in dissipate the end away from described ring-type muscle 22 of muscle 23 and connect and have dowel 24.By
The edge of perforate 21 arranges reinforcement, and the edge of the perforate 21 of EVA layer can be avoided to be torn in transport or application process and lead
Cause the situation of soundproof effect difference.
In present embodiment, as it is shown in figure 1, described sound insulating pad also includes that the described PU that deviates from being positioned at described EVA layer 2 foams
The nonwoven layer 4 that the acoustical cotton layer 3 of the side of layer 1 and the side deviating from described EVA layer 2 of described acoustical cotton layer 3 are arranged.
Acoustical cotton layer 3 is fiber-like material, and nonwoven layer 4 is ventilative with through hole, as it is shown in figure 5, in nonwoven layer 4
The cavity of hole and acoustical cotton layer 3 composition form helmholtz resonance chamber, centering low-frequency sound has good assimilation effect.
The thickness of the sound insulating pad that present embodiment provides is about 20-50mm, and wherein the thickness of PU foaming layer 1 is preferably
10-35mm, the thickness of EVA layer 2 is 2-5mm, and the thickness of acoustical cotton layer 3 is 8-10mm.Certainly, sound insulating pad is not limited to as above thick
Degree is arranged, and as above thickness is arranged is the preferred thickness applying the sound insulating pad on vehicle dash panel plate, under other application operating mode, every
Sound pad may be alternatively provided as other thickness.
PU foaming layer is formed dimpled sound insulating pad and PU foaming layer does not have dimpled sound insulating pad and carries out soundproof effect
Test.As shown in Figure 6 (abscissa in Fig. 6 is HZ, and vertical coordinate is dB), at 315-6300Hz frequency band, Pu foaming layer has
Oise insulation factor a of the sound insulating pad of pit does not have the high 1-7.5dB of oise insulation factor b of dimpled sound insulating pad than PU foaming layer, therefore, the brightest
Showing, the soundproof effect that PU foaming layer has dimpled sound insulating pad is preferable.
On the other hand this utility model also provides for a kind of vehicle, and this automobile is provided with front panel, described front panel towards
The side of driver's cabin is fixed with sound insulating pad as above, the described PU foaming layer 1 of wherein said sound insulating pad be fixed on described before
On coaming plate, nonwoven layer 4 is towards driver's cabin.
Arranging sound insulating pad as above in the front panel of vehicle, the noise that can effectively stop electromotor to produce reaches to be driven
Sail room, thus the comfortableness of occupant can be improved.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (9)
1. a sound insulating pad, it is characterised in that described sound insulating pad includes being positioned at outermost PU foaming layer (1), described PU foams
It is formed with multiple shrinkage pool (11) on the side towards outside of layer (1)；
Described sound insulating pad is additionally included in the EVA layer (2) that the side deviating from described pit (11) of described PU foaming layer (1) is arranged.
Sound insulating pad the most according to claim 1, it is characterised in that the wall of described pit (11) is formed as spheric.
Sound insulating pad the most according to claim 2, it is characterised in that the degree of depth of described pit (11) is 5-10mm, a diameter of
20-40mm。
Sound insulating pad the most according to claim 1, it is characterised in that described EVA layer (2) is formed by injection, and described EVA
Layer (2) is formed as not waiting thick structure.
Sound insulating pad the most according to claim 1, it is characterised in that be formed with perforate (21) on described EVA layer (2), described
The edge of perforate (21) is formed with reinforcement.
Sound insulating pad the most according to claim 5, it is characterised in that described reinforcement includes the ring around described perforate (21)
Shape muscle (22), is provided with around described ring-type muscle (22) and multiple dissipates muscle (23) along what described ring-type muscle (22) extended laterally,
The described end away from described ring-type muscle (22) dissipating muscle (23) connects dowel (24).
7. according to the sound insulating pad described in any one in claim 1-6, it is characterised in that described sound insulating pad also includes being positioned at institute
State the acoustical cotton layer (3) of the side deviating from described PU foaming layer (1) of EVA layer (2), also include being positioned at described acoustical cotton layer (3)
The nonwoven layer (4) of the side deviating from described EVA layer (2).
Sound insulating pad the most according to claim 7, it is characterised in that described PU foaming layer (1) thickness is 10-35mm, described
EVA layer (2) thickness is 2-5mm, and described acoustical cotton layer (3) thickness is 8-10mm.
9. a vehicle, described vehicle is provided with front panel, and the side towards driver's cabin of described front panel is fixed with according to power
Profit requires the sound insulating pad in 1-8 described in any one, and the described PU foaming layer (1) of described sound insulating pad is fixed on described front panel
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380412.7U CN205836118U (en) | 2016-04-28 | 2016-04-28 | Sound insulating pad and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380412.7U CN205836118U (en) | 2016-04-28 | 2016-04-28 | Sound insulating pad and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205836118U true CN205836118U (en) | 2016-12-28 |
Family
ID=57628663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620380412.7U Active CN205836118U (en) | 2016-04-28 | 2016-04-28 | Sound insulating pad and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205836118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484326A (en) * | 2018-12-18 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | Automobile front wall sound-isolation pad and automobile |
-
2016
- 2016-04-28 CN CN201620380412.7U patent/CN205836118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484326A (en) * | 2018-12-18 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | Automobile front wall sound-isolation pad and automobile |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |