CN213973869U - Enhanced damping plate for shock isolation and vibration damping - Google Patents
Enhanced damping plate for shock isolation and vibration damping Download PDFInfo
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- CN213973869U CN213973869U CN202120036672.3U CN202120036672U CN213973869U CN 213973869 U CN213973869 U CN 213973869U CN 202120036672 U CN202120036672 U CN 202120036672U CN 213973869 U CN213973869 U CN 213973869U
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Abstract
The utility model discloses an enhancement mode damping plate that shock insulation system shakes, including glass cloth layer, epoxy layer, pitch mica combined material damping layer, organic adhesive linkage, EVA layer and the high temperature resistant adhesive tape layer that to last and set gradually set up a plurality of through-holes along vertical transverse arrangement on the EVA layer, so that the EVA layer is fretwork column structure. In this way, the utility model discloses can bring the good effect of shaking of straining, to the local increase in strength effect of car engage gear position panel beating, make the panel beating natural frequency of car engage gear position department increase, difficult emergence resonance improves the anti vibration noise reduction effect of automobile body, brings more superior driving experience and feels.
Description
Technical Field
The utility model relates to a damping plate technical field, more specifically say, relate to an enhancement mode damping plate that shock insulation system shakes.
Background
With the rapid development of the automobile industry, people put forward higher requirements on the safety, comfort and environmental protection of cars, and the standard requirements on the shock resistance and noise reduction in automobile cabins are also continuously improved. Therefore, NVH (noise, vibration and comfort) performance standards have come into play, and have been used as one of the important indicators for measuring automobile grades and brands. Methods for improving NVH performance are basically divided into two types. One is a mechanism design for avoiding noise generation in the process of designing and developing a new automobile, but the defects in the design cannot be avoided because other requirements of the automobile are considered. And the other method is to add damping material after the automobile is formed for vibration reduction, sound insulation and noise reduction. At present, two methods of damping material vibration reduction and sound insulation noise reduction are used, namely reinforced vibration reduction and damping vibration reduction.
In the process of driving a car by a user, the gear of the car is often required to be operated, and vibration and noise are often generated when the car is put into gear, so that the driving experience is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides an enhancement mode damping plate that shock insulation system shakes can effectively be to the local increase intensity effect of car engage gear position panel beating to there are better anti vibration and noise reduction to this position.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
an enhancement mode damping sheet that shock insulation system shakes, including glass cloth layer, epoxy layer, pitch mica combined material damping layer, organic adhesive linkage, EVA layer and the high temperature resistant adhesive tape layer that to last and set gradually set up a plurality of through-holes along vertical transverse arrangement on the EVA layer, so that the EVA layer is fretwork column structure.
As a further improvement of the scheme, the thickness of the EVA layer is 0.9 mm.
As a further improvement of the scheme, the EVA layer is in a flat sheet shape.
As a further improvement of the scheme, the organic bonding layer is an acrylic resin film layer.
As a further improvement of the scheme, the thickness of the organic bonding layer is 0.1 mm.
As a further improvement of the scheme, the thickness of the damping layer made of the asphalt-mica synthetic material is 1.5 mm.
As a further improvement of the scheme, the aperture of the through holes is 1 mm, and the hole spacing is 12 mm.
As a further improvement of the scheme, the damping plate is cut into a butterfly shape and used for a metal plate at the position where the automobile is in gear.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses can bring the good effect of shaking of straining under epoxy layer, pitch mica combined material damping layer and EVA layer three's effect, including the good toughness in glass cloth layer, to the local increase intensity effect of car engage gear position panel beating, make the panel beating natural frequency of car engage gear position department increase, the difficult resonance that takes place improves the anti vibration noise reduction effect of automobile body.
2. Set up a plurality of through-holes of arranging along vertical horizontal on the EVA layer, make the EVA layer be fretwork column structure, when the car put into gear the noise and the vibration that produce on the panel beating of gear week side got into the circular through-hole structure on the EVA layer, noise and vibration can be in the through-hole energy dissipation and weaken, have further improved the anti vibration noise reduction effect of automobile body.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the EVA layer of the present invention;
in the figure: 1. a glass cloth layer; 2. an epoxy resin layer; 3. a damping layer of asphalt-mica composite material; 4. an organic adhesive layer; 5. an EVA layer; 6. a high temperature resistant adhesive tape layer; 7. and a through hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1-2, the utility model discloses an enhancement mode damping plate that shock insulation system shakes, including glass cloth layer 1, epoxy layer 2, pitch mica combined material damping layer 3, organic adhesive linkage 4, EVA layer 5 and the high temperature resistant adhesive tape layer 6 that set gradually from top to bottom, epoxy layer 2, organic adhesive linkage 4 and high temperature resistant adhesive tape layer all regard as pasting the layer, through the hot press, closely paste its upper strata and/or lower floor and become an organic whole.
The glass cloth layer 1 is 0.3 mm thick, is a fabric woven by glass fibers, has the performances of insulation, heat insulation, corrosion resistance, no combustion, high temperature resistance, high strength and the like, can enhance the rigidity of the position after being bonded on a metal plate, can disperse the energy of noise and weakens the transmission of the noise energy.
The thickness of the epoxy resin layer 2 is 0.1 mm, the adhesive force is strong, the epoxy resin layer can have high adhesive force to various substances, the contractibility during curing is low, the generated internal stress is small, and the adhesive strength is improved; the curing is convenient, different curing agents can be selected, and the curing temperature range can be almost in the range of 0 to 180 ℃.
The thickness of the asphalt-mica composite material damping layer 3 is 1.5 mm, the asphalt-mica composite material damping layer 3 is made by taking asphalt as a matrix and filling mica sheets/powder, the mica sheets/powder can improve the damping performance and the sound insulation performance of the asphalt within a certain range, the action mechanism of the asphalt-mica composite material damping layer is similar to that of other viscoelastic damping materials, and the asphalt-mica composite material damping layer 3 is most suitable for a thin-wall structure, namely a metal plate at an automobile gear position, and plays a main role in vibration attenuation and noise reduction.
The thickness of the organic bonding layer 4 is 0.1 mm, the organic bonding layer 4 is an acrylic resin film layer, and the asphalt mica synthetic material damping layer 3 and the EVA layer 5 are tightly bonded through the organic bonding layer 4.
The thickness of the EVA layer 5 is 0.9 mm, and the EVA layer 5 is in a flat sheet shape. The EVA layer 5 has good flexibility, rubber-like elasticity, good flexibility at-50 deg.C, transparency, surface gloss, good chemical stability, good aging resistance, good ozone resistance, and no toxicity. Has good mixing property with the filler, coloring property and molding processability. Through the blanking process, set up a plurality of through-holes 7 along vertical transverse arrangement on EVA layer 5, the aperture of through-hole 7 is 1 millimeter, and the hole interval is 12 millimeters to make EVA layer 5 be fretwork column structure. When noise and vibration generated on the metal plate on the peripheral side enter the circular through hole 7 structure on the EVA layer 5 when the automobile is in gear, the noise and the vibration can consume energy in the through hole 7 and weaken.
The epoxy resin layer 2, the asphalt mica synthetic material damping layer 3 and the EVA layer 5 can bring about good vibration filtering effect under the effect, and the glass cloth layer 1 has good toughness, so that the inherent frequency of a metal plate at the position of an automobile gear is increased, resonance is not easy to occur, and the vibration resisting and noise reducing functions of an automobile body are improved.
The thickness of the high temperature resistant adhesive tape layer 6 is 0.1 mm, and the high temperature resistant adhesive tape layer is composed of three parts of a base material, an adhesive and a piece of isolation paper (film), wherein paper, cloth and a film are used as the base material, and then the paper adhesive tape, the cloth adhesive tape or the film adhesive tape is prepared by uniformly coating the adhesive on the base material.
Through a blanking process, the damping plate is cut into a butterfly shape with a part of the middle part hollowed out, so that the damping plate is used for a metal plate at the position of an automobile gear.
Other structures of the enhanced damping plate for vibration isolation and damping in the embodiment are shown in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides an enhancement mode damping plate that shock insulation system shakes which characterized in that: the glass cloth layer, the epoxy resin layer, the asphalt mica synthetic material damping layer, the organic bonding layer, the EVA layer and the high-temperature-resistant adhesive tape layer are sequentially arranged from top to bottom, a plurality of through holes which are longitudinally and transversely arranged are formed in the EVA layer, and therefore the EVA layer is of a hollow structure.
2. An enhanced damping plate for vibration isolation and damping according to claim 1, wherein: the thickness of the EVA layer is 0.9 mm.
3. An enhanced damping plate for vibration isolation and damping according to claim 2, wherein: the EVA layer is in a flat sheet shape.
4. An enhanced damping plate for vibration isolation and damping according to claim 1, wherein: the organic bonding layer is an acrylic resin film layer.
5. An enhanced damping plate for vibration isolation and damping according to claim 4, wherein: the thickness of the organic bonding layer is 0.1 mm.
6. An enhanced damping plate for vibration isolation and damping according to claim 1, wherein: the thickness of the damping layer made of the asphalt mica synthetic material is 1.5 mm.
7. An enhanced damping plate for vibration isolation and damping according to claim 1, wherein: the aperture of the through holes is 1 mm, and the hole pitch is 12 mm.
8. An enhanced damping plate for vibration isolation and damping according to claim 1, wherein: the damping plate is cut into a butterfly shape and used for a metal plate at the position where the automobile is in gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120036672.3U CN213973869U (en) | 2021-01-07 | 2021-01-07 | Enhanced damping plate for shock isolation and vibration damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120036672.3U CN213973869U (en) | 2021-01-07 | 2021-01-07 | Enhanced damping plate for shock isolation and vibration damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213973869U true CN213973869U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120036672.3U Active CN213973869U (en) | 2021-01-07 | 2021-01-07 | Enhanced damping plate for shock isolation and vibration damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213973869U (en) |
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2021
- 2021-01-07 CN CN202120036672.3U patent/CN213973869U/en active Active
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