CN210390363U

CN210390363U - Melamine foam structure with noise reduction, vibration avoidance and sound absorption structures

Info

Publication number: CN210390363U
Application number: CN201920114319.5U
Authority: CN
Inventors: 毛旭东
Original assignee: Beijing Baoman Technology Co ltd
Current assignee: Beijing Baoman Technology Co ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2020-04-24
Anticipated expiration: 2029-01-23

Abstract

The utility model discloses a melamine foam structure with noise reduction, vibration prevention and sound absorption structures, which comprises a melamine foam layer, wherein a butyl rubber layer is arranged below the melamine foam layer, a protective layer is arranged above the melamine foam layer, the protective layer is a polyethylene layer, and the polyethylene particle anticorrosive adhesive layer is formed by bonding a plurality of dispersed particles; a fireproof and waterproof composite layer is arranged on the outer side of the protective layer and is a magnesium oxide glass fiber layer; the utility model has the advantages that: sound absorption and shock absorption effects are good, and the sound absorption and shock absorption device is not easy to damage and has long service life.

Description

Melamine foam structure with noise reduction, vibration avoidance and sound absorption structures

Technical Field

The utility model relates to an abatvoix, specifically speaking are from area make an uproar, keep away shake, inhale the cotton structure of melamine bubble of sound structure of making an uproar, belong to the abatvoix field.

Background

With the increasing living standard of people, automobiles are used as a rather popular vehicle. The comfort level of the automobile riding is more and more concerned. Among these, how to make the inside of the automobile in a relatively quiet and comfortable environment is an important issue. The utility model discloses a chinese utility model patent that the title is "one kind system shakes, falls and makes an uproar and inhale sound combined material" application number is "201320459909.4" discloses a system shakes, falls and inhale sound combined material, including the basic unit, this basic unit is bonded each other by glass fiber cloth layer and butyl rubber layer and is constituteed, and this basic unit is equipped with the one deck paper that leaves outward, and this leaves the shape paper attached on this butyl rubber layer, still is equipped with the EVA material layer outward of this basic unit. However, the product has poor damping and noise reduction effects, is easy to damage and has short service life.

Disclosure of Invention

In order to solve the problem, the utility model discloses a from area make an uproar, keep away shake, inhale the cotton structure of melamine bubble of sound structure, inhale sound, shock attenuation effectual, not fragile moreover, long service life.

The technical scheme of the utility model is that:

the melamine foam structure with the noise reduction, vibration avoidance and sound absorption structures comprises a melamine foam layer, the melamine foam layer is good in sound absorption effect, not prone to damage and long in service life, a butyl rubber layer is arranged below the melamine foam layer, the sound insulation effect is good, a protective layer is arranged above the melamine foam layer, the protective layer is a polyethylene layer, wear resistance and corrosion resistance are achieved, the polyethylene layer is a polyethylene particle anti-corrosion adhesive layer, the polyethylene particle anti-corrosion adhesive layer is formed by bonding a plurality of dispersed particles, and the melamine foam structure is light, anti-striking, ageing-resistant, stretch-proof, ultraviolet radiation resistant and high in bonding strength; and a fireproof and waterproof composite layer is arranged on the outer side of the protective layer, and is a magnesium oxide glass fiber layer produced by taking magnesium oxide and glass fiber as raw materials.

Furthermore, the butyl rubber layer is provided with a plurality of honeycomb cavities, and polyurethane elastomers are filled in the honeycomb cavities, so that the shock absorption effect is good.

Furthermore, a sealing layer is arranged below the butyl rubber layer, a foaming material with large elastic deformation and long service life is preferably selected, and a permanent elastic open-cell structure foaming material which is non-toxic, environment-friendly, non-conductive and compatible with all metal and non-metal composite materials is particularly preferably selected. The sealing layer mainly enables the radiated noise in the vehicle body not to be directly transmitted to the inside of the vehicle body in a mode of pressing and filling the pores, so that the purpose of controlling the noise is achieved. On the other hand, the compressed damping sealing material has a certain elastic deformation amount, is directly contacted with the wall body of the vehicle body, and can effectively separate the vibration of most of the wall bodies of the side walls from the vehicle body, thereby playing a damping role.

In addition, as the foaming material with the elastic open pore structure, due to the viscosity and the heat transfer and conduction effect of the material, the sealing layer can convert part of sound energy into internal energy, so that the sound absorption effect is achieved on the noise inside the side wall and the noise inside a train to a certain extent.

Furthermore, a reinforcing net layer is arranged in the melamine foam layer, the reinforcing net layer is formed by vertically interweaving glass fibers and steel wires serving as warps and wefts respectively, the warp density and the weft density are both between 1 mm and 5mm, and the thread diameter of the warp density and the weft density is both between 0.3 mm and 0.8 mm.

In addition, two adjacent layers are adhered through the fireproof glue film, so that the fireproof performance is improved, the interlayer adhesion is firm, and the service life is prolonged.

The utility model has the advantages that: the sound absorption and shock absorption effect is good, the damage is not easy, the service life is long, and the sound absorption and shock absorption device can be widely applied to the inner surfaces of the bodies of automobiles and high-speed trains for damping and reducing noise.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.

Example 1

As shown in fig. 1, a melamine foam structure with noise reduction, vibration avoidance and sound absorption structures comprises a melamine foam layer 1, the melamine foam layer has a good sound absorption effect, is not easy to damage and has a long service life, a butyl rubber layer 2 is arranged below the melamine foam layer 1, the sound insulation effect is good, a protective layer 3 is arranged above the melamine foam layer 1, the protective layer 3 is a polyethylene layer and is wear-resistant and corrosion-resistant, the polyethylene layer is a polyethylene particle anti-corrosion adhesive layer, and the polyethylene particle anti-corrosion adhesive layer is formed by bonding a plurality of dispersed particles, so that the melamine foam structure is light, anti-striking, aging-resistant, stretch-resistant, ultraviolet radiation resistant and high in bonding strength; and a fireproof and waterproof composite layer 4 is arranged on the outer side of the protective layer 3, and is a magnesium oxide glass fiber layer produced by using magnesium oxide and glass fiber as raw materials.

The butyl rubber layer 2 is provided with a plurality of honeycomb cavities, and polyurethane elastomers are filled in the honeycomb cavities, so that the shock absorption effect is good.

And a sealing layer 5 is arranged below the butyl rubber layer 2, and a foaming material with large elastic deformation and deformation amount and long service life is preferably selected, and a permanent elastic open-cell structure foaming material which is non-toxic, environment-friendly, non-conductive and compatible with all metal and non-metal composite materials is particularly preferably selected. The sealing layer mainly enables the radiated noise in the vehicle body not to be directly transmitted to the inside of the vehicle body in a mode of pressing and filling the pores, so that the purpose of controlling the noise is achieved. On the other hand, the compressed damping sealing material has a certain elastic deformation amount, is directly contacted with the wall body of the vehicle body, and can effectively separate the vibration of most of the wall bodies of the side walls from the vehicle body, thereby playing a damping role.

The melamine foam layer 1 is internally provided with a reinforcing mesh layer, the reinforcing mesh layer is formed by vertically interweaving glass fibers and steel wires serving as warps and wefts respectively, the warp density and the weft density are both between 1 mm and 5mm, and the thread diameters of the warp density and the weft density are both between 0.3 mm and 0.8 mm. Strengthen the stratum reticulare and be equipped with one deck or multilayer, this embodiment is 2 layers, has improved the structural strength of product, has prolonged life.

The two adjacent layers are adhered through the fireproof glue film, so that the fireproof performance is improved, the interlayer adhesion is firm, and the service life is prolonged.

Claims

1. The utility model provides a from melamine bubble cotton structure of making an uproar, keeping away to shake, inhaling sound structure is fallen from area which characterized in that: the melamine foam plastic composite material comprises a melamine foam layer, wherein a butyl rubber layer is arranged below the melamine foam layer, a protective layer is arranged above the melamine foam layer, the protective layer is a polyethylene layer, the polyethylene layer is a polyethylene particle anti-corrosion adhesive layer, and the polyethylene particle anti-corrosion adhesive layer is formed by bonding a plurality of dispersed particles; and a fireproof and waterproof composite layer is arranged on the outer side of the protective layer and is a magnesium oxide glass fiber layer.

2. The melamine foam structure with the noise reduction, vibration avoidance and sound absorption structures as claimed in claim 1, wherein: the butyl rubber layer is provided with a plurality of honeycomb cavities, and polyurethane elastomers are filled in the honeycomb cavities.

3. The melamine foam structure with the noise reduction, vibration avoidance and sound absorption structures as claimed in claim 1, wherein: and a sealing layer is arranged below the butyl rubber layer, the sealing layer is made of a foaming material with an elastic open pore structure, and the sealing layer is bonded with the vehicle body in a mode of pressing and filling pores.

4. The melamine foam structure with the noise reduction, vibration avoidance and sound absorption structures as claimed in claim 1, wherein: the melamine foam layer is internally provided with a reinforcing mesh layer, the reinforcing mesh layer is formed by vertically interweaving glass fibers and steel wires serving as warps and wefts respectively, the warp density and the weft density are both between 1 mm and 5mm, and the thread diameters of the warp density and the weft density are both between 0.3 mm and 0.8 mm.

5. The melamine foam structure with the noise reduction, vibration avoidance and sound absorption structures as claimed in claim 1, wherein: two adjacent layers are adhered through a fireproof glue film.