CN207449804U - Sound insulating pad - Google Patents
Sound insulating pad Download PDFInfo
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- CN207449804U CN207449804U CN201721386220.8U CN201721386220U CN207449804U CN 207449804 U CN207449804 U CN 207449804U CN 201721386220 U CN201721386220 U CN 201721386220U CN 207449804 U CN207449804 U CN 207449804U
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Abstract
The utility model embodiment discloses a kind of sound insulating pad, including：First heavy layer and the second heavy layer, the second heavy layer middle part have mounting hole, and the outer edge of the first heavy layer is arranged on the hole wall of the mounting hole, wherein, the thickness of the first heavy layer is more than the thickness of the second heavy layer.Heavy layer dosage can be reduced using the utility model embodiment, saves material, improves the utilization rate of material, reduces production cost, and can guarantee soundproof effect, improves the overall quality of sound insulating pad.
Description
Technical field
The utility model embodiment is related to automobile technical field, and in particular to a kind of sound insulating pad.
Background technology
At present, traditional front panel sound insulating pad is that heavy layer adds PU (Polyurethane, polyurethanes) foaming layer
The double-layer structure of fitting.The heavy layer of the front panel sound insulating pad is prepared using plastic uptake technique, and the heavy layer after plastic uptake shaping is each
Area thickness can not accurately control, and often be less than the edge thickness of heavy layer on heavy layer for the thickness in the region of sound insulation.For
The soundproof effect of sound insulating pad entirety is ensured, it is necessary to increase the dosage of heavy layer epidermis to increase the thickness in sound insulation region, causes material
Expect that utilization rate is low, production cost is high.
Utility model content
In view of this, the utility model embodiment proposes a kind of sound insulating pad, to solve above-mentioned technical problem.
The utility model embodiment proposes a kind of sound insulating pad, including：First heavy layer and the second heavy layer, described second
There is mounting hole in the middle part of heavy layer, the outer edge of the first heavy layer is arranged on the hole wall of the mounting hole, wherein, it is described
The thickness of first heavy layer is more than the thickness of the second heavy layer.
Optionally, further include：3rd heavy layer, the outer edge of the 3rd heavy layer respectively with the first heavy layer
The hole wall connection of outer edge, the mounting hole, wherein the thickness of the 3rd heavy layer is less than the thickness of the first heavy layer,
And more than the thickness of the second heavy layer.
Optionally, the quantity at least two of the 3rd heavy layer, at least two the 3rd heavy layers are divided into institute
State the both sides of the first heavy layer in the width direction.
Optionally, further include：4th heavy layer, the outer edge of the 4th heavy layer respectively with the first heavy layer
The hole wall connection of outer edge, the mounting hole, the thickness of the first heavy layer is more than the thickness of the 4th heavy layer, described
The thickness of 4th heavy layer is more than the thickness of the 3rd heavy layer, and the thickness of the 3rd heavy layer is more than second heavy
The thickness of layer.
Optionally, the quantity at least two of the 4th heavy layer, at least two the 4th heavy layers are divided into institute
State the both sides of the first heavy layer along its length.
Optionally, the first heavy layer, the second heavy layer, the 3rd heavy layer and the 4th heavy layer
Surface density is 2.5-7Kg/m2。
Optionally, the first heavy layer, the second heavy layer, the 3rd heavy layer and the 4th heavy layer
Thickness is 1.5-4mm.
Optionally, further include flexible foam layer, the flexible foam layer respectively with the first heavy layer, second weight
Matter layer, the 3rd heavy layer and the 4th heavy layer fitting.
Optionally, the thickness of the flexible foam layer is 10 times of thickness of the first heavy layer.
Optionally, the sound insulating pad is integrated injection molding.
The sound insulating pad that the utility model embodiment provides is by setting the first heavy layer and the second heavy layer, the first heavy layer
Positioned at the centre position of the second heavy layer, and the thickness of the first heavy layer is more than the second heavy layer, can avoid weight in traditional technology
The thickness in sound insulation region is less than the problem of edge thickness of heavy layer on matter layer, has both reduced heavy layer dosage, saves material, improves
The utilization rate of material reduces production cost, and can guarantee soundproof effect, improves the overall quality of sound insulating pad.
Description of the drawings
Fig. 1 is the structure diagram of the sound insulating pad of the utility model embodiment.
Fig. 2 is the sectional view of A-A in Fig. 1.
Fig. 3 is the enlarged drawing of B in Fig. 2.
Specific embodiment
Below in conjunction with attached 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 word "front", "rear" used in the following description,
"left", "right", "up" and "down" refer to the direction in attached drawing, and word " interior " and " outer " are referred respectively to towards or away from specific
The direction at component geometry center.
Embodiment one
Fig. 1 shows the structure diagram of the sound insulating pad of the utility model embodiment, and Fig. 2 is the sectional view of A-A in Fig. 1,
Fig. 3 is the enlarged drawing of B in Fig. 2.As shown in Figs. 1-3, the sound insulating pad of the utility model embodiment, including：First heavy layer 1 and
Two heavy layers 2,2 middle part of the second heavy layer have mounting hole, and the outer edge of the first heavy layer 1 is arranged on the hole wall of mounting hole,
The shape of mounting hole and the shape adaptation of the first heavy layer 1.Wherein, the thickness of the first heavy layer 1 is more than the thickness of the second heavy layer 2
Degree.
The size of sound insulating pad and the size of automobile dash board are basically identical.In use, sound insulating pad is directly mounted on automobile
In front panel, the position where the first heavy layer is close to the position of sound source.
The sound insulating pad that the utility model embodiment provides is by setting the first heavy layer and the second heavy layer, the first heavy layer
Positioned at the centre position of the second heavy layer, and the thickness of the first heavy layer is more than the second heavy layer, can avoid weight in traditional technology
The thickness in sound insulation region is less than the problem of edge thickness of heavy layer on matter layer, has both reduced heavy layer dosage, saves material, improves
The utilization rate of material reduces production cost, and can guarantee soundproof effect, improves the overall quality of sound insulating pad.In soundproof effect phase
With in the case of, the sound insulating pad that the utility model embodiment provides can save 30% compared with sound insulating pad of the prior art
Material utilization amount.
Embodiment two
On the basis of above-described embodiment one, optionally, sound insulating pad further includes：3rd heavy layer 3, the 3rd heavy layer 3
Hole wall of the outer edge respectively with the outer edge of the first heavy layer 1, mounting hole is connected.Wherein, the thickness of the 3rd heavy layer 3 is less than the
The thickness of one heavy layer 1, and more than the thickness of the second heavy layer 2.By setting the 3rd heavy layer 3, ensureing soundproof effect
Meanwhile the dosage of the first heavy layer 1 can be reduced, improve stock utilization.It is deposited between the first heavy layer 1 and the second heavy layer 2
In transitional region, if the transitional region uses the first heavy layer 1, easily increase the dosage of the first heavy layer 1, waste of materials；
If the transitional region uses the second heavy layer 2, soundproof effect is bad.
In a preferred embodiment of the utility model, as shown in Figure 1, the quantity at least two of the 3rd heavy layer 3,
Two the 3rd heavy layers 3 are located at the both sides of the first heavy layer 1 in the width direction respectively, further improve stock utilization, protect
Demonstrate,prove soundproof effect.
As shown in Figure 1, the first heavy layer 1 is generally rectangular.The shape of two the 3rd heavy layers 3 is also substantially rectangular
Shape.The area of two the 3rd heavy layers 3 is respectively less than the area of the first heavy layer 1.
Further, sound insulating pad further includes：4th heavy layer 4, the outer edge of the 4th heavy layer 4 respectively with the first heavy layer
The hole wall connection of 1 outer edge, mounting hole, the thickness of the first heavy layer 1 are more than the thickness of the 4th heavy layer 4, the 4th heavy layer 4
Thickness be more than the thickness of the 3rd heavy layer 3, the thickness of the 3rd heavy layer 3 is more than the thickness of the second heavy layer 2.By setting the
Four heavy layers 4 while soundproof effect is ensured, can reduce the dosage of the first heavy layer 1, improve stock utilization.
As shown in Figure 1, the quantity at least two of the 4th heavy layer 4, two the 4th heavy layers 4 are located at the first heavy respectively
1 both sides along its length of layer, to improve soundproof effect and save material utilization amount.The area of two the 4th heavy layers 4 is respectively less than
The area of first heavy layer 1.
In a preferred embodiment of the utility model, the first heavy layer 1, the second heavy layer 2,3 and of the 3rd heavy layer
The surface density of 4th heavy layer 4 is 2.5-7Kg/m2, while soundproof effect is ensured, to save material utilization amount.
In a preferred embodiment of the utility model, the first heavy layer 1, the second heavy layer 2,3 and of the 3rd heavy layer
The thickness of 4th heavy layer 4 is 1.5-4mm, while soundproof effect is ensured, material utilization amount is saved, also can reach loss of weight
Effect.The area of each heavy layer of sound insulating pad, can design with sound-filed simulation based on experience value.According on automobile coaming plate not
With the soundproof effect in region and the density of selected acoustic material, the surface density and thickness of each heavy layer are set.
Preferably, sound insulating pad further includes flexible foam layer 5, flexible foam layer 5 respectively with the first heavy layer 1, the second heavy
The 2, the 3rd heavy layer 3 of layer and the 4th heavy layer 4 are bonded.First heavy layer 1, the second heavy layer 2, the 3rd heavy layer 3 and quadruple
One side of matter layer 4 is coplanar, and flexible foam layer 5 is bonded with the side, to ensure the smooth of one side of sound insulating pad.By setting
Flexible foam layer 5 is put, the soundproof effect of sound insulating pad can be improved.First heavy layer 1, the second heavy layer 2, the 3rd heavy layer 3 and
After four heavy layers 4 are set, four heavy layers are put into foaming mould, pass through foam process, generation flexible foam layer 5.It is soft
PU (Polyurethane, polyurethanes) material can be used in matter froth bed 5.
In a preferred embodiment of the utility model, the thickness of flexible foam layer 5 is the thickness of the first heavy layer 1
10 times, to ensure the sound insulation value of sound insulating pad.
Preferably, sound insulating pad is integrated injection molding, and integrated injection molding is simple for process, and production cost is low；And sound insulation
Pad is molded by Shooting Technique, it can be achieved that the difference of sound insulating pad different zones surface density.
More than, the technical solution of the utility model is described in detail in conjunction with specific embodiments, it is described specific
Embodiment is used to help understand the thought of the 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 (10)
1. a kind of sound insulating pad, which is characterized in that including：First heavy layer and the second heavy layer, the second heavy layer middle part tool
There is mounting hole, the outer edge of the first heavy layer is arranged on the hole wall of the mounting hole, wherein, the first heavy layer
Thickness is more than the thickness of the second heavy layer.
2. sound insulating pad as described in claim 1, which is characterized in that further include：3rd heavy layer, the 3rd heavy layer it is outer
Hole wall of the edge respectively with the outer edge of the first heavy layer, the mounting hole is connected, wherein the thickness of the 3rd heavy layer
Degree is less than the thickness of the first heavy layer, and more than the thickness of the second heavy layer.
3. sound insulating pad as claimed in claim 2, which is characterized in that the quantity at least two of the 3rd heavy layer, at least
Two the 3rd heavy layers are divided into the both sides of the first heavy layer in the width direction.
4. sound insulating pad as claimed in claim 3, which is characterized in that further include：4th heavy layer, the 4th heavy layer it is outer
Hole wall of the edge respectively with the outer edge of the first heavy layer, the mounting hole is connected, and the thickness of the first heavy layer is big
In the thickness of the 4th heavy layer, the thickness of the 4th heavy layer is more than the thickness of the 3rd heavy layer, and the described 3rd
The thickness of heavy layer is more than the thickness of the second heavy layer.
5. sound insulating pad as claimed in claim 4, which is characterized in that the quantity at least two of the 4th heavy layer, at least
Two the 4th heavy layers are divided into the both sides of the first heavy layer along its length.
6. sound insulating pad as claimed in claim 5, which is characterized in that the first heavy layer, the second heavy layer, described
The surface density of three heavy layers and the 4th heavy layer is 2.5-7Kg/m2。
7. sound insulating pad as claimed in claim 6, which is characterized in that the first heavy layer, the second heavy layer, described
The thickness of three heavy layers and the 4th heavy layer is 1.5-4mm.
8. sound insulating pad as claimed in claim 5, which is characterized in that further include flexible foam layer, the flexible foam layer difference
It is bonded with the first heavy layer, the second heavy layer, the 3rd heavy layer and the 4th heavy layer.
9. sound insulating pad as claimed in claim 8, which is characterized in that the thickness of the flexible foam layer is the first heavy layer
10 times of thickness.
10. sound insulating pad as described in any one of claims 1-9, which is characterized in that the sound insulating pad is integrated injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721386220.8U CN207449804U (en) | 2017-10-25 | 2017-10-25 | Sound insulating pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721386220.8U CN207449804U (en) | 2017-10-25 | 2017-10-25 | Sound insulating pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207449804U true CN207449804U (en) | 2018-06-05 |
Family
ID=62281756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721386220.8U Active CN207449804U (en) | 2017-10-25 | 2017-10-25 | Sound insulating pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207449804U (en) |
-
2017
- 2017-10-25 CN CN201721386220.8U patent/CN207449804U/en active Active
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