CN208069565U - A kind of sound insulating pad - Google Patents
A kind of sound insulating pad Download PDFInfo
- Publication number
- CN208069565U CN208069565U CN201820479996.2U CN201820479996U CN208069565U CN 208069565 U CN208069565 U CN 208069565U CN 201820479996 U CN201820479996 U CN 201820479996U CN 208069565 U CN208069565 U CN 208069565U
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- layer
- sound insulating
- insulating pad
- cotton layer
- foaming layers
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Abstract
The utility model provides a kind of sound insulating pad, belongs to technical field of automobile parts.It solves the problems, such as that existing sound insulating pad soundproof effect is poor.This sound insulating pad includes EVA layer, PU foaming layers, includes two-component cotton layer, and PU foaming layers are located between EVA layer and two-component cotton layer, and PU foaming layers and EVA layer are fixedly connected with by way of hot melt, and PU foaming layers and two-component cotton layer are fixedly connected with by way of putting and melting.This sound insulating pad has the advantages that soundproof effect is good.
Description
Technical field
The utility model belongs to technical field of automobile parts, is related to a kind of sound insulating pad.
Background technology
With the development of society, the improvement of people's living standards, automobile increasingly becomes the important traffic work of people's trip
Tool, the comfort property of automobile increasingly become the main points that people are more concerned about.
The comfort of automobile is improved, one of which is exactly to reduce the noise of automobile, in order to reduce the noise of automobile, people
Sound insulating pad, existing sound insulating pad, such as Chinese patent literature data can be set in the car and disclose [the application of front panel sound insulating pad
Number： 201520435228.3；Authorization Notice No.：CN204978479U] comprising EVA rubber, non-woven fabrics and PU foaming layers；Its
In, non-woven fabrics is set on EVA rubber, and PU foaming layers are set on non-woven fabrics, and EVA rubber is sent out with non-woven fabrics and PU respectively
Alveolar layer is in contact.
The front panel sound insulating pad of this kind of structure, EVA rubber are securely connect by non-woven fabrics with PU foaming layers；But this kind is tied
The front panel sound insulating pad of structure, can only absorb the noise of intermediate frequency and low frequency, can not absorb high frequency noise, high frequency noise is caused still
It is enough added to automotive interior, occupant is made not feel well, therefore the soundproof effect of above-mentioned sound insulating pad is unsatisfactory.
Invention content
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of sound insulating pad solves
The technical issues of be how to improve the soundproof effect of sound insulating pad.
The purpose of this utility model can be realized by following technical proposal：A kind of sound insulating pad, including EVA layer and PU foaming
Layer, which is characterized in that further include two-component cotton layer, the PU foaming layers are located between EVA layer and two-component cotton layer, the PU
Foaming layer and EVA layers are fixedly connected with by way of hot melt, the PU foaming layers and two-component cotton layer put it is molten by way of it is mutually solid
Even.
There is EVA layer itself soundproof effect, PU foaming layers can absorb the noise of intermediate frequency and low frequency, and two-component cotton layer can
High frequency noise is absorbed, when this sound insulating pad being enable to absorb the noise, i.e. running car of high frequency, intermediate frequency and low frequency, various frequencies are made an uproar
Sound is not easily accessible the inside of automobile, and the soundproof effect of this sound insulating pad keeps passenger riding comfortable, improves the comfort of automobile.
Two-component cotton layer is the prior art, is not repeated, PU foaming layers and EVA layers of placement hot pressing in a mold, PU foaming layers and EVA
Layer is that entire surface is fixedly connected with by way of hot melt, and connected firmness is high；PU foaming layers and two-component cotton layer are molten by putting
Mode be fixedly connected with, i.e. PU foaming layers fusing at PU foaming layers and the multiple contact points of two-component cotton layer makes PU foaming layers and double groups
Part cotton layer is fixedly connected with, this kind of connected mode will not destroy the structure of two-component cotton layer, and two-component cotton layer is made to have best disappear
Audio fruit.
It is described recessed with the pit that several are inwardly concaved on the two-component cotton layer in a kind of above-mentioned sound insulating pad
The bottom in hole is fixedly connected with PU foaming layers.The connected point of PU foaming layers and two-component cotton layer is the bottom of pit, the setting of pit
So that the local thickness of two-component cotton layer is reduced, keeps the firmness that PU foaming layers and two-component cotton layer are connected high.
In a kind of above-mentioned sound insulating pad, the thickness of the EVA layer is 1.5-2.5mm.This kind of thickness of EVA layer, make this every
Sound pad will not occupy the installation space of bigger, reasonable design while having sufficient intensity.
In a kind of above-mentioned sound insulating pad, the thickness of the PU foaming layers is 4-6mm.This kind of thickness makes PU foaming layers occupy
There is preferable erasure effect when smaller installation space.
In a kind of above-mentioned sound insulating pad, the thickness of the two-component cotton layer is 4-6mm.This kind of thickness makes two-component cotton layer
There is preferable erasure effect when occupying smaller installation space.
In a kind of above-mentioned sound insulating pad, the EVA layer, PU foaming layers and two-component cotton layer pass through fastener or clamping
Mode be connected in the front panel of automobile, when EVA layer, PU foaming layers and the installation of two-component cotton layer in the car after, it is described
The integral thickness of EVA layer, PU foaming layers and two-component cotton layer is compressed between 4-6mm.It is convenient that this sound insulating pad is connected, and is connected
This sound insulating pad is compressed afterwards, has preferable erasure effect while so that this sound insulating pad is occupied smaller installation space.
Compared with prior art, sound insulating pad provided by the utility model has the following advantages：
1, there is this sound insulating pad EVA layer itself soundproof effect, PU foaming layers can absorb the noise of intermediate frequency and low frequency, double groups
Part cotton layer can absorb high frequency noise, when this sound insulating pad being enable to absorb the noise, i.e. running car of high frequency, intermediate frequency and low frequency, make an uproar
Sound is not easily accessible the inside of automobile, and the soundproof effect of this sound insulating pad keeps passenger riding comfortable, improves the comfort of automobile.
2, there is the pit inwardly concaved, the setting of pit to make the part of two-component cotton layer on this sound insulating pad two-component cotton layer
Thickness reduces, and the connected point that the bottom of pit is PU foaming layers and two-component cotton layer, keeps PU foaming layers and two-component cotton layer solid
Firmness even is high.
Description of the drawings
Fig. 1 is the sectional view of this sound insulating pad.
Fig. 2 is the structural schematic diagram after the installation of this sound insulating pad.
In figure, 1, EVA layer；2, PU foaming layers；3, two-component cotton layer；4, pit；5, fastener；6, front panel.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this sound insulating pad includes EVA layer 1, PU foaming layers 2 and two-component cotton layer 3.
In the present embodiment, the thickness of EVA layer 1 is 2mm, and the thickness of PU foaming layers 2 is 5mm, the thickness of two-component cotton layer 3
For 5mm, in actual production, the thickness of EVA layer 1 can be 1.5mm or 2.5mm, and the thickness of PU foaming layers 2 can be 4mm
Either the thickness of 6mm two-components cotton layer 3 is 4mm or 6mm.
PU foaming layers 2 are located between EVA layer 1 and two-component cotton layer 3, and PU foaming layers 2 and EVA layer 1 are by way of hot melt
It is fixedly connected with, there are multiple pits 4 inwardly concaved on two-component cotton layer 3, in the present embodiment, on two-component cotton layer 3 there are three tools
The pit 4 inwardly concaved can inwardly concave on two-component cotton layer 3 with 30 or 60 in actual production
The bottom position corresponding with PU foaming layers 2 of pit 4, pit 4 fits, and then makes the fusing of 2 corresponding position of PU foaming layers
PU foaming layers 2 and two-component cotton layer 3 are fixedly connected in a manner of multiple fixed points.
As shown in Fig. 2, in the present embodiment, EVA layer 1, PU foaming layers 2 and two-component cotton layer 3 are solid by such as bolt of fastener 5
It is connected in the front panel 6 of automobile, after EVA layer 1, PU foaming layers 2 and two-component cotton layer 3 are installed in the car, EVA layer 1, PU
The integral thickness of foaming layer 2 and two-component cotton layer 3 is compressed to 5mm, in actual production, EVA layer 1, PU foaming layers 2 and double groups
Part cotton layer 3 can be connected in the front panel 6 of automobile by way of clamping, when EVA layer 1, PU foaming layers 2 and two-component cotton layer
After 3 installations in the car, the integral thickness of EVA layer 1, PU foaming layers 2 and two-component cotton layer 3 may be compressed to 4mm or
6mm。
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although EVA layer 1, PU foaming layers 2, two-component cotton layer 3, pit 4, fastener 5, front panel is used more herein
6 equal terms, but it does not preclude the possibility of using other terms.The use of these items is only for more easily describe to conciliate
Release the essence of the utility model；Being construed as any one of the additional limitations all is disagreed with the spirit of the present invention
's.
Claims (6)
1. a kind of sound insulating pad, including EVA layer (1) and PU foaming layers (2), which is characterized in that further include two-component cotton layer (3), institute
It states PU foaming layers (2) to be located between EVA layer (1) and two-component cotton layer (3), the PU foaming layers (2) and EVA layer (1) pass through heat
Molten mode is fixedly connected with, and the PU foaming layers (2) and two-component cotton layer (3) are fixedly connected with by way of putting and melting.
2. a kind of sound insulating pad according to claim 1, which is characterized in that there are several on the two-component cotton layer (3)
The pit (4) inwardly concaved, bottom and the PU foaming layers (2) of the pit (4) are fixedly connected with.
3. a kind of sound insulating pad according to claim 1 or 2, which is characterized in that the thickness of the EVA layer (1) is 1.5-
2.5mm。
4. a kind of sound insulating pad according to claim 1 or 2, which is characterized in that the thickness of the PU foaming layers (2) is 4-
6mm。
5. a kind of sound insulating pad according to claim 1 or 2, which is characterized in that the thickness of the two-component cotton layer (3) is 4-
6mm。
6. a kind of sound insulating pad according to claim 1 or 2, which is characterized in that the EVA layer (1), PU foaming layers (2) and
Two-component cotton layer (3) is connected in by way of fastener (5) or clamping in the front panel (6) of automobile, as EVA layer (1), PU
After foaming layer (2) and two-component cotton layer (3) installation in the car, the EVA layer (1), PU foaming layers (2) and two-component cotton layer
(3) integral thickness is compressed between 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820479996.2U CN208069565U (en) | 2018-04-03 | 2018-04-03 | A kind of sound insulating pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820479996.2U CN208069565U (en) | 2018-04-03 | 2018-04-03 | A kind of sound insulating pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208069565U true CN208069565U (en) | 2018-11-09 |
Family
ID=64043534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820479996.2U Active CN208069565U (en) | 2018-04-03 | 2018-04-03 | A kind of sound insulating pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208069565U (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 |
-
2018
- 2018-04-03 CN CN201820479996.2U patent/CN208069565U/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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