CN209987725U - Special coated type foaming vibration damping sheet for automobile door - Google Patents
Special coated type foaming vibration damping sheet for automobile door Download PDFInfo
- Publication number
- CN209987725U CN209987725U CN201920308074.XU CN201920308074U CN209987725U CN 209987725 U CN209987725 U CN 209987725U CN 201920308074 U CN201920308074 U CN 201920308074U CN 209987725 U CN209987725 U CN 209987725U
- Authority
- CN
- China
- Prior art keywords
- layer
- vibration
- foaming
- automobile door
- vibration damping
- 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
- 238000005187 foaming Methods 0.000 title claims abstract description 35
- 238000013016 damping Methods 0.000 title claims description 30
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 20
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- 238000005253 cladding Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 239000011358 absorbing material Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Landscapes
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The utility model relates to a special cladding type foaming vibration sheet of automobile door, including foaming layer, system layer, skeleton that shakes, at the outer cladding foaming layer of skeleton, the foaming layer does not completely cover the skeleton but leaves an opening, inlays at the opening part and adorns system layer that shakes, system layer inner face and the laminating of skeleton surface that shakes. When the vibration mechanical energy passes through the vibration making layer and the foaming layer and is converted into heat energy to weaken vibration, and then passes through the framework layer aluminum alloy plate and the foaming layer on the back of the framework layer aluminum alloy plate and is converted into heat energy for the second time, the structure effectively weakens the transmission of the vibration mechanical energy.
Description
Technical Field
The utility model belongs to the damping material field relates to restraint damping material for the car, is the special cladding type of car door and sends out steep vibration piece by it.
Background
At present, foamed sound-absorbing materials and rubber damping materials in automobiles are widely used by various large automobile factories. The foamed sound absorbing material can reduce the noise and airflow from outside the automobile and raise the comfort of the automobile. The material of the automobile foaming sound-absorbing material is generally resin, and the NVH function is played after the material is subjected to electrophoretic baking (140-160 ℃ multiplied by 20Min) foaming.
The damping material is derived for reducing vibration generated in the process of automobile running, and can be used immediately after being pasted on a corresponding position of an automobile body without heating. The principle is that the vibration potential energy of the automobile is converted into heat energy through the damping material to achieve the purpose of reducing vibration. However, the damping material supplied in the market at present is generally rubber type, and a widely adopted method for increasing the damping coefficient of the rubber type damping fin is to increase the thickness of the product, but the self weight of the vehicle body is increased after the thickness is increased, so that the oil consumption and the discharge are increased, and the purpose of environmental protection cannot be achieved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a special cladding type foaming vibration piece of automobile door, adopted the system structure that foaming sound absorbing material and damping material combine, not only can the noise that produces in the absorbed vibration but also increased the damping effect of door, expanded damping material's range of application.
The utility model provides a technical scheme that technical problem adopted is:
a coated foaming vibration sheet special for an automobile door comprises a foaming layer, a vibration making layer and a framework, wherein the foaming layer is coated outside the framework, the foaming layer does not completely cover the framework but is provided with an opening, the vibration making layer is embedded in the opening, and the inner surface of the vibration making layer is attached to the surface of the framework.
Furthermore, release paper is pasted on the outer surface of the vibration layer.
And the framework is an aluminum alloy plate, and the periphery of the aluminum alloy plate is made into a concave-convex shape or a sawtooth shape.
And the outer side surface of the vibration damping layer is flush with the foaming layer on the same side.
And the thickness of the vibration damping layer is 2-2.5 mm.
Moreover, the foaming layer is made of EVA as a main foaming material.
And the vibration damping layer is made of butyl rubber as a main vibration damping material.
The utility model has the advantages that:
(1) the utility model discloses a structure is that the direct cladding of foaming layer is on aluminium alloy plate surface and the opening is left at the aluminium alloy another side to the foaming coating at the in-process of moulding plastics, and the material and the aluminium alloy surface recombination of shaking are made in the opening. When the automobile passes through a baking workshop, the vibration making material part is firmly attached to the interior of the automobile door, the foaming layer around the framework layer aluminum alloy plate is foamed to adhere the automobile door plate and completely cover the framework layer aluminum alloy plate. The foamed double-layer damping structure enables vibration to be weakened when vibration mechanical energy is converted into heat energy after passing through the vibration making layer and the foaming layer, and the mechanical energy is converted into heat energy for the second time after passing through the framework layer aluminum alloy plate and the foaming layer on the back of the framework layer aluminum alloy plate, so that the structure effectively weakens the transmission of the vibration mechanical energy.
(2) The utility model discloses the system shakes the piece when receiving external force vibration bending deformation, forces to get the compound damping layer material and takes place shear deformation, and mechanical energy turns into during heat energy distributes the air, has better vibration/noise reduction effect. The damping material has small change in mass and rigidity, and high safety and reliability.
Drawings
FIG. 1 is a front view of the structure of the damper blade of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a perspective view of the vibration damping sheet of the present invention.
Wherein 1 is coated with a foaming layer, 2 vibration damping layers and 3 framework layers.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A coated foaming vibration-generating sheet specially used for automobile door is composed of a foaming layer, a vibration-generating layer and a skeleton, the foaming layer is coated outside the skeleton and not completely covers the skeleton but has an opening, the vibration-generating layer is embedded in the opening, the inner surface of vibration-generating layer is adhered to the surface of skeleton, and the release paper is adhered to the outer surface of vibration-generating layer. The outer side surface of the vibration damping layer is flush with the foaming layer on the same side.
The framework is an aluminum alloy plate, and in order to increase the adhesive force between the aluminum alloy plate and the foaming layer, the periphery of the aluminum alloy plate is made into a concave-convex shape or a zigzag shape.
The thickness of the vibration damping layer is 2-2.5 mm. The thickness of the aluminum alloy plate is about 1 mm.
The preparation method of the utility model is as follows:
preheating an injection molding machine for 30min to 90 ℃, then placing an aluminum alloy plate with the thickness of 1mm into a mold for fixing, melting the granular foaming layer material through the injection molding machine, and performing injection molding on the surface of the aluminum alloy plate according to the shape of an open mold. And then pressing the flaky vibration layer material into the injection-molded opening by a tabletting machine to be compounded with the framework aluminum alloy plate and attaching release layer release paper to the other surface.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the spirit of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (7)
1. The utility model provides a special coated type foaming shake piece of car door which characterized in that: the vibration damping layer is embedded in the opening, and the inner surface of the vibration damping layer is attached to the surface of the framework.
2. The coated brewing and vibrating piece special for the automobile door as claimed in claim 1, wherein: and sticking release paper outside the vibration control layer.
3. The coated brewing and vibrating piece special for the automobile door as claimed in claim 1, wherein: the framework is an aluminum alloy plate, and the periphery of the aluminum alloy plate is made into a concave-convex shape or a sawtooth shape.
4. The coated brewing and vibrating piece special for the automobile door as claimed in claim 1, wherein: the outer side surface of the vibration damping layer is flush with the foaming layer on the same side.
5. The coated brewing and vibrating piece special for the automobile door as claimed in claim 1, wherein: the thickness of the vibration damping layer is 2-2.5 mm.
6. The coated brewing and vibrating piece special for the automobile door as claimed in claim 1, wherein: the foaming layer is made of EVA as a main foaming material.
7. The coated brewing and vibrating piece special for the automobile door as claimed in claim 1, wherein: the vibration damping layer is made of butyl rubber serving as a main vibration damping material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308074.XU CN209987725U (en) | 2019-03-12 | 2019-03-12 | Special coated type foaming vibration damping sheet for automobile door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308074.XU CN209987725U (en) | 2019-03-12 | 2019-03-12 | Special coated type foaming vibration damping sheet for automobile door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209987725U true CN209987725U (en) | 2020-01-24 |
Family
ID=69289296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920308074.XU Expired - Fee Related CN209987725U (en) | 2019-03-12 | 2019-03-12 | Special coated type foaming vibration damping sheet for automobile door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209987725U (en) |
-
2019
- 2019-03-12 CN CN201920308074.XU patent/CN209987725U/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: 20200124 |