CN217025836U - Multi-fiber structure soundproof cotton - Google Patents

Abstract

The utility model discloses a sound insulation cotton with a multi-fiber structure, which has the technical scheme that: be in including sound absorbing layer, setting the architectural surface and the setting of sound absorbing layer up end are in the protective substrate of terminal surface under the sound absorbing layer, architectural surface and protective substrate have constituted the soundproof cotton body, sound absorbing layer includes first sound absorbing cotton body and sets up the cotton body is inhaled to the first second of inhaling the cotton body up end of sound, protective substrate is including setting gradually backup pad, protective substrate, the adhesion layer of terminal surface and from type paper under the first sound absorbing cotton body. According to the design of the release paper and the bonding layer of the multi-fiber sound insulation cotton, when workers install the sound insulation cotton body, the bonding layer can be bonded with the installation surface only by removing the release paper, so that the installation is convenient, and the working efficiency of the workers is effectively improved.

Description

Multi-fiber structure soundproof cotton

Technical Field

The utility model relates to the field of soundproof cotton and instruments, in particular to soundproof cotton with a multi-fiber structure.

Background

It is known that noise generated by an automobile in idling, acceleration or driving states on different roads is amplified and transmitted into the automobile after resonance or resonance is generated between a chassis and an automobile body, so that a driver feels uncomfortable. For example: the noise of the engine is obviously reduced after the sound-absorbing material is applied to the engine cabin cover, because the sound-absorbing material is an acoustic foam material, the inside of the sound-absorbing material is distributed with the opening cavity and the closing cavity, the noise, namely the sound energy, can be effectively converted into mechanical energy and heat energy to be consumed, and the two materials are not independently applied to achieve the purpose of absorbing the noise, and the best effect can be achieved by matching the two materials.

Current publication is CN 208947240U's chinese patent, and it discloses a car is with inhaling sound cotton to insulate against heat, inhale sound cotton body, go up PET non-woven fabrics layer, lower PET non-woven fabrics layer, support column and aluminium foil layer including first sound cotton body, the second of inhaling, last PET non-woven fabrics layer set up the surface at first sound cotton body of inhaling, lower PET non-woven fabrics layer set up the surface at the second sound cotton body of inhaling, the aluminium foil layer set up respectively and inhale the internal surface of sound cotton body at first sound cotton body of inhaling and second, the support column respectively the equipartition set up between two-layer aluminium foil layer.

However, due to the design characteristics of the conventional sound-absorbing cotton, the conventional sound-absorbing cotton is inconvenient for workers to install the sound-absorbing cotton body, so that the efficiency of the workers in installing the sound-absorbing cotton body is reduced, and various use requirements of the conventional sound-absorbing cotton for vehicles cannot be met;

therefore, a multi-fiber structure soundproof cotton is proposed.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the background art, the utility model aims to provide a sound insulation cotton with a multi-fiber structure, so as to solve the problems that the existing sound absorption cotton in the background art is inconvenient for workers to install the sound absorption cotton body due to the design characteristics of the sound absorption cotton, and further the efficiency of installing the sound absorption cotton body by the workers is reduced.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a multi-fiber structure soundproof cotton, is in including sound absorbing layer, setting the architectural surface and the setting of sound absorbing layer up end are in the protective substrate of terminal surface under the sound absorbing layer, architectural surface and protective substrate have constituted the soundproof cotton body, the sound absorbing layer includes that first sound absorbing cotton body and setting are in the first second of inhaling the cotton body up end of sound absorbs the cotton body, the protective substrate is including setting gradually backup pad, protective substrate, the bonding layer and the release paper of terminal surface under the first sound absorbing cotton body.

Preferably, the first sound-absorbing cotton body and the second sound-absorbing cotton body are respectively formed by rubber foaming, and the first sound-absorbing cotton body and the second sound-absorbing cotton body are connected with each other through a high polymer adhesive.

By adopting the technical scheme, the sound wave energy can be absorbed conveniently by utilizing the characteristic of rubber foaming, and the noise reduction effect is further achieved.

Preferably, the sound cotton body is inhaled to the second even buffering arch that is provided with, and the buffering arch with the sound cotton body integrated into one piece is inhaled to the second.

Through adopting above-mentioned technical scheme, and then be convenient for inhale the cotton body of sound through the second and protruding formation concave-convex wavy sponge on the surface.

Preferably, the supporting plate is made of an aluminum plate, and the outer diameter of the supporting plate is equal to that of the first sound absorption cotton body.

Through adopting above-mentioned technical scheme, and then be convenient for improve soundproof cotton's rigidity through the backup pad to be convenient for mould the type to soundproof cotton.

Preferably, the adhesive layer is a hot melt adhesive, and the hot melt adhesive belongs to nontoxic and tasteless environmental-friendly chemical agents

By adopting the technical scheme, the environmental pollution can be effectively prevented, and the phenomenon that the soundproof cotton body smells badly due to overhigh temperature is avoided.

Preferably, the decorative surface layer is made of a PET non-woven fabric material.

Through adopting above-mentioned technical scheme, and then be convenient for improve the suitability of soundproof cotton body and automotive interior through the decorative cover layer.

In summary, the utility model mainly has the following beneficial effects:

the soundproof cotton with multi-fiber structure has the advantage of convenient use, and

(1) the first sound absorption cotton body and the second sound absorption cotton body are arranged, buffering bulges are uniformly arranged on the second sound absorption cotton body, the first sound absorption cotton body and the second sound absorption cotton body are respectively formed by rubber foaming, a plurality of hollow small holes are formed in the first sound absorption cotton body and the second sound absorption cotton body, sound enters the foaming small holes and is absorbed by air friction vibration in the small holes, concave-convex wavy sponge is formed by the bulges on the surface of the second sound absorption cotton body, a large amount of sound wave energy can be absorbed, and the sound wave is attenuated;

(2) in addition, due to the design of the release paper and the bonding layer, when the worker installs the soundproof cotton body, the worker only needs to remove the release paper, the bonding layer can be bonded with the installation surface, the installation is convenient, and the working efficiency of the worker is effectively improved.

Drawings

FIG. 1 is one of the schematic structural illustrations of a multi-fiber structural acoustic wool;

FIG. 2 is a second schematic structural view of a multi-fiber structural acoustic insulation batt;

fig. 3 is an enlarged view of a in fig. 2.

Reference numerals are as follows: 1. a first sound-absorbing cotton body; 2. a second sound-absorbing cotton body; 21. a buffer protrusion; 3. decorating the surface layer; 4. a support plate; 5. a protective liner; 6. an adhesive layer; 7. and (7) release paper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 and 3, a multi-fiber sound-insulation cotton comprises a sound-absorbing layer, a decorative surface layer 3 arranged on the upper end surface of the sound-absorbing layer, and a protective substrate arranged on the lower end surface of the sound-absorbing layer, wherein the sound-absorbing layer, the decorative surface layer 3 and the protective substrate form a sound-insulation cotton body, the sound-absorbing layer comprises a first sound-absorbing cotton body 1 and a second sound-absorbing cotton body 2 arranged on the upper end surface of the first sound-absorbing cotton body 1, the protective substrate comprises a support plate 4, a protective lining 5, a bonding layer 6 and release paper 7 which are sequentially arranged on the lower end surface of the first sound-absorbing cotton body 1, in the utility model, the first sound-absorbing cotton body 1 and the second sound-absorbing cotton body 2 are arranged, and buffer bulges 21 are uniformly arranged on the second sound-absorbing cotton body 2, and the first sound-absorbing cotton body 1 and the second sound-absorbing cotton body 2 are respectively formed by foaming rubber, and have a plurality of hollow small holes inside, and sound enters the small holes, the sound absorption cotton is absorbed by air friction shock in the small holes, and concave-convex wave-shaped sponge is formed by the bulges on the surface of the second sound absorption cotton body 2, so that a large amount of sound wave energy can be absorbed, and the sound wave can be attenuated; in addition, due to the design of the release paper 7 and the bonding layer 6, when the soundproof cotton body is installed, workers only need to remove the release paper 7, the bonding layer 6 can be bonded with the installation surface, installation is facilitated, and the working efficiency of the workers is effectively improved.

Referring to fig. 1 and 3, the first sound-absorbing cotton body 1 and the second sound-absorbing cotton body 2 are respectively formed by rubber foaming, and the first sound-absorbing cotton body 1 and the second sound-absorbing cotton body 2 are connected with each other through a polymer adhesive, so that the sound wave energy is absorbed by utilizing the characteristics of rubber foaming, and the noise reduction effect is achieved.

Referring to fig. 2 and 3, the sound cotton body 2 is inhaled to the second on even be provided with the buffering arch 21, and the cotton body 2 integrated into one piece is inhaled to buffering arch 21 and second, and then be convenient for inhale the protruding unsmooth wavy sponge of formation on the cotton body 2 surface of sound through the second, absorb a large amount of sound wave energy, play the effect of decay to the sound wave.

Referring to fig. 1 and 3, backup pad 4 sets up to aluminum plate material, and the external diameter of backup pad 4 equals with the external diameter of first sound-absorbing cotton body 1, and then is convenient for improve sound-absorbing cotton's rigidity through backup pad 4 to be convenient for mould the type to sound-absorbing cotton, and then the effectual planarization that guarantees protective lining 5, the sticky layer 6 and the installation face of terminal surface cohere mutually under the protective lining 5 of being convenient for.

Referring to fig. 1 and 2, the adhesive layer 6 is a hot melt adhesive, which is a nontoxic and odorless environmental-friendly chemical agent, and can effectively prevent the environment from being polluted, thereby preventing the soundproof cotton body from generating unpleasant odor due to overhigh temperature.

Referring to fig. 2 and 3, decorative cover layer 3 sets up to PET non-woven fabrics material, and then is convenient for protect the sound insulating layer through decorative cover layer 3, and is convenient for improve the suitability of soundproof cotton body and automotive interior through decorative cover layer 3.

The working principle is as follows: the first sound absorption cotton body 1 and the second sound absorption cotton body 2 are arranged, the buffering bulges 21 are uniformly arranged on the second sound absorption cotton body 2, the first sound absorption cotton body 1 and the second sound absorption cotton body 2 are respectively formed by rubber foaming, a plurality of hollow small holes are formed in the first sound absorption cotton body and the second sound absorption cotton body, sound enters the foaming small holes and is absorbed by air friction vibration in the small holes, concave-convex wavy sponge is formed by the bulges on the surface of the second sound absorption cotton body 2, a large amount of sound wave energy can be absorbed, and the sound wave is attenuated; in addition, with the design of the release paper 7 and the adhesive layer 6, when the worker installs the soundproof cotton body, the worker only needs to remove the release paper 7, and then the adhesive layer 6 can be bonded with the installation surface.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a multifilament structure soundproof cotton which characterized in that: be in including sound absorbing layer, setting decorative cover layer (3) and the setting of sound absorbing layer up end are in the protective substrate of terminal surface under the sound absorbing layer, decorative cover layer (3) and protective substrate have constituted the soundproof cotton body, the sound absorbing layer includes that the first sound cotton body (1) of inhaling is in and set up the first second of inhaling the cotton body (1) up end of sound inhales cotton body (2), the protective substrate is including setting gradually backup pad (4), protective substrate (5), the adhesion layer (6) of terminal surface under the first sound cotton body (1) of inhaling and from type paper (7).

2. The multi-fiber structural acoustic insulation wool according to claim 1 wherein: first inhale cotton body of sound (1) and second and inhale cotton body of sound (2) and be rubber foaming respectively and form, and first inhale cotton body of sound (1) and second and inhale sound through polymer binder interconnect between cotton body (2).

3. The multi-fiber-structure soundproof cotton of claim 1, wherein: the sound cotton body (2) is inhaled to the second go up even be provided with buffering arch (21), and buffering arch (21) with sound cotton body (2) integrated into one piece is inhaled to the second.

4. The multi-fiber structural acoustic insulation wool according to claim 1 wherein: the supporting plate (4) is made of aluminum plates, and the outer diameter of the supporting plate (4) is equal to that of the first sound-absorbing cotton body (1).

5. The multi-fiber-structure soundproof cotton according to claim 2, characterized in that: the adhesive layer (6) is set to be a hot melt adhesive.

6. The multi-fiber-structure soundproof cotton of claim 1, wherein: decorative surface layer (3) set up to PET non-woven fabrics material.

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