CN214654630U

CN214654630U - Composite damping sound insulation material

Info

Publication number: CN214654630U
Application number: CN202121056021.7U
Authority: CN
Inventors: 王付刚
Original assignee: Qingdao Hongshengda Sound Insulation Material Co ltd
Current assignee: Qingdao Hongshengda Sound Insulation Material Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-09
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a sound insulation material, concretely relates to compound damping sound insulation material. From the bottom up includes in proper order: the self-adhesive damping shock absorption layer is made of an environment-friendly butyl rubber high polymer material with self-adhesive property; a sound insulation layer made of a high density poe material; the sound absorption layer is formed by processing polyurethane high-density sound absorption cotton manufactured by a hole-opening foaming process, the surface of the sound absorption layer is in a concave-convex shape, and the concave-convex shape is specifically in an eggshell shape or a pyramid shape or a wedge shape. The sound absorption layer is connected with the sound insulation layer through hot pressing, and the sound insulation layer is connected with the self-adhesion damping shock absorption layer through the adhesion of the self-adhesion damping shock absorption layer. The utility model discloses an acoustic design principle of sound absorption earlier sound insulation last damping shock attenuation again can satisfy simultaneously and inhale sound, give sound insulation and vibration/noise reduction requirement.

Description

Composite damping sound insulation material

Technical Field

The utility model relates to a sound insulation material, concretely relates to compound damping sound insulation material.

Background

Noise has become a major environmental pollution, and the sound environmental problems of factory equipment and buildings are receiving more and more attention and attention. The selection of proper materials for sound absorption, sound insulation and shock absorption treatment of factory equipment and buildings is one of the most common and basic technical measures in noise control engineering of factory equipment and buildings.

The close relationship between the concept of "sound absorption", "sound insulation" and "shock absorption" and the essential relationship for use is often confounded. Materials such as glass wool and rock wool which have good sound absorption performance but poor sound insulation performance are mistakenly called sound insulation materials, sound absorption plates made of plant fibers are named sound insulation plates in the early years and used for solving the sound insulation problem of buildings, and meanwhile, shock absorption is often neglected.

In order to use materials reasonably and improve the noise control effect of buildings, further understanding and defining the concepts of sound absorption, sound insulation and shock absorption are necessary. The sound absorption, sound insulation and vibration reduction of the material are different in that the sound absorption of the material is focused on the size of the sound energy reflected by the sound source side, and the reflected sound energy is targeted to be small. The sound absorption material absorbs incident sound energy only a few tenths of a day, so the sound absorption capability, namely the sound absorption coefficient, can be expressed by decimal numbers; material soundproofing focuses on the amount of transmitted acoustic energy incident on the other side of the source, with the goal being that the transmitted acoustic energy is small. The sound insulation material can attenuate the transmission sound energy to 10 < -3 > to 10 < -4 > or less of the incident sound energy, and for convenient expression, the sound insulation quantity is expressed by a decibel measurement method. The shock absorption is independent, close and inseparable with the sound absorption and insulation material, and the use of the shock absorption material greatly increases the effect of the sound absorption and insulation material.

Sound insulation material among the prior art can only realize unilateral sound insulation or the unilateral sound of inhaling, can't satisfy simultaneously and inhale sound, give sound insulation and vibration/noise reduction requirement.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art existence, the utility model provides a composite damping sound insulation material includes from the bottom up in proper order:

the self-adhesive damping shock absorption layer is made of an environment-friendly butyl rubber high polymer material with self-adhesive property; a sound insulation layer made of poe material; the sound absorption layer is formed by processing polyurethane sound absorption cotton prepared by an opening foaming process, the surface of the sound absorption layer is in a concave-convex shape, and the concave-convex shape is specifically in an eggshell shape, a pyramid shape or a wedge shape; the sound absorption layer is connected with the sound insulation layer through hot pressing, and the sound insulation layer is connected with the self-adhesion damping shock absorption layer through the adhesion of the self-adhesion damping shock absorption layer.

Furthermore, the density of the poe material is 3.5-4.5 kg/m.

Furthermore, the density of the polyurethane is 25-38 kg/cubic meter.

Further, the thickness of the self-adhesive damping shock absorption layer is 2 mm.

Further, the thickness of the sound insulation layer is 2 mm.

Furthermore, the total thickness of the eggshell-shaped sound absorption layer is 15-50 mm, the height of the eggshell shape is 5-40 mm, and the maximum diameter of the eggshell shape is 20-40 mm.

Furthermore, the total thickness of the pyramid-shaped sound absorption layer is 30-50 mm, and the height of the pyramid is 20-30 mm.

Further, the total thickness of the sound absorbing layer in the shape of a wedge is 50-400 mm, the shape of the wedge comprises a base and a wedge part, the cross section of the base is square, and the cross section of the wedge part is isosceles trapezoid.

Furthermore, the self-adhesive damping shock absorption layer is used for being stuck with isolation paper on the sticking surface which is stuck with equipment.

The utility model discloses the beneficial effect who reaches does:

the utility model discloses a compound damping sound-proof material adopts earlier sound absorption again to give sound insulation at last damping absorbing acoustics design principle, can satisfy simultaneously and inhale sound, give sound insulation and vibration/noise reduction requirement. The sound absorption layer is made of polyurethane high-density sound absorption cotton processed into concave-convex materials by adopting an open-cell foaming process, fine gaps are filled in the concave-convex materials, and the porous structure can absorb incident sound energy, consume a part of sound energy and attenuate sound waves; the sound insulation layer is made of high-density poe material, the material is environment-friendly, the performance is stable, the softness is good, the tear resistance is realized, the high and low temperature resistance is realized, the surface density of the material is high, the transmission energy of an incident sound source can be attenuated, the sound insulation effect is good within the frequency range of 100 to 5000hz, the sound insulation amount of a material test is about 25db, and the full-frequency sound insulation, shock absorption and noise reduction are realized; self-adhesion damping buffer layer is made by environmental protection butyl rubber macromolecular material, and material damping nature is good, and self is difficult for producing vibrations, can stop the adsorbed substance vibration, effectively reduces vibrations noise propagation, and material self has viscidity, directly glues the position that needs sound insulation during the installation, construction convenience.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an embodiment of the present invention.

Fig. 3 is a schematic view of the overall structure of the second embodiment of the present invention.

Fig. 4 is a schematic diagram of the three overall structures of the embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of the embodiment of the present invention.

In the figure, 1, a self-adhesive damping shock absorption layer; 2. a sound insulating layer; 3. a sound absorbing layer; 31. a base; 32. and a splitting part.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, embodiments of the present invention will be described below with reference to the accompanying drawings.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1-3, the utility model provides a composite damping sound-proof material adopts the acoustic design principle of sound absorption earlier then sound insulation damping at last, include: self-adhesion damping buffer layer 1, puigging 2, sound absorbing layer 3 and puigging 2 pass through hot pressing connection, and puigging 2 and self-adhesion damping buffer layer 1 are through the viscidity adhesive bonding connection of self-adhesion damping buffer layer 1. The structure can simultaneously realize damping, sound insulation and sound absorption functions.

Self-adhesion damping buffer layer 1, self-adhesion damping buffer layer 1 are made by environmental protection butyl rubber macromolecular material, and material damping nature is good, and self is difficult for producing vibrations, can stop the adsorbed material vibration, effectively reduces vibrations noise propagation, and material self has viscidity, directly glues the position that needs sound insulation during the installation, construction convenience.

A layer of isolation paper used for keeping viscosity is attached to the bonding surface of the self-adhesive damping shock absorption layer 1 and the equipment, and when the composite damping sound insulation material is used, the isolation paper is torn off and then the composite damping sound insulation material is attached to a working surface needing to be bonded.

The sound insulation layer 2 is made of high-density poe material; poe the density of the material is 3.5-4.5 kg/m. High density poe material environmental protection, stable performance, the compliance is good, and is tear-resistant, resistant high low temperature, material areal density is big, can attenuate incident sound source's transmission energy, has good syllable-dividing effect in 100 ~ 5000hz frequency range, and material test sound insulation volume is about 25db, and full frequency gives sound insulation and falls and make an uproar.

The sound absorption layer 3 is made of polyurethane high-density sound absorption cotton processed by adopting an open-cell foaming process to form a concave-convex material, fine gaps are filled in the concave-convex material, and a porous and concave-convex structure can absorb incident sound energy, consume a part of sound energy and attenuate sound waves. The density of the polyurethane is 25-38 kg/m. The concavo-convex shape may be an eggshell shape or a pyramid shape or a wedge shape.

The eggshell-shaped sound absorption layer 3 has the following size ranges: the total thickness is 15-50 mm, the height of the eggshell shape is 5-40 mm, and the maximum diameter of the eggshell shape is 20-40 mm.

The pyramid-shaped sound-absorbing layer 3 has the following size ranges: the total thickness is 30-50 mm, and the height of the pyramid shape is 20-30 mm.

The wedge-shaped sound absorbing layer 3 has the following size ranges: the total thickness is 50 ~ 400mm, and the wedge shape includes basal portion 31 and split portion 32, and the cross-section of basal portion 31 is square, and the cross-section of split portion 32 is isosceles trapezoid.

It should be noted that the composite damping sound insulation material in the drawings is only a material with one length to represent the structure, and different lengths can be cut according to the needs in practical use, and the length in the drawings is not to be taken as limiting the length of the composite damping sound insulation material of the present application.

Example one

As shown in fig. 1, the total thickness of the composite sound insulation material is about 24mm, the thickness of the self-adhesive damping shock absorption layer 1 is 2mm, the thickness of the sound insulation layer 2 is 2mm, the concave-convex shape of the sound absorption layer 3 has the appearance like an eggshell, and the maximum thickness of the sound absorption layer 3 is 20 mm. Specifically, as shown in fig. 2, the height of the eggshell shape is 10mm, and the maximum diameter a of the eggshell shape is 30 mm.

Example two

As shown in fig. 3, the total thickness of the composite sound insulation material is about 54mm, the thickness of the self-adhesive damping vibration-damping layer 1 is 2mm, the thickness of the sound-insulating layer 2 is 2mm, the concave-convex shape of the sound-absorbing layer 3 has a pyramid-shaped appearance, and the maximum thickness of the sound-absorbing layer 3 is 50 mm. Specifically, the height of the pyramid shape is 30 mm.

EXAMPLE III

As shown in fig. 4 to 5, the total thickness of the composite sound insulation material is about 204mm, the thickness of the self-adhesive damping vibration absorption layer 1 is 2mm, the thickness of the sound insulation layer 2 is 2mm, the concave-convex shape of the sound absorption layer 3 is a wedge shape, and the maximum thickness of the multi-sound absorption layer 3 is 200 mm. The wedge shape has the wedge of a plurality of an organic whole to constitute, and the wedge includes basal portion 31 and the integrative portion 32 that splits with the basal portion, and the cross-section of basal portion 31 is square, and the cross-section of portion 32 that splits is isosceles trapezoid, and the height of basal portion 31 and the hypotenuse length ratio control of portion 32 that splits are 1: 4.

the above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a composite damping sound-proof material which characterized in that, from the bottom up includes in proper order:

the self-adhesive damping shock absorption layer (1) is made of an environment-friendly butyl rubber high polymer material with self-adhesive property;

a sound insulation layer (2) made of poe material;

the sound absorption layer (3) is formed by processing polyurethane sound absorption cotton prepared by an open-cell foaming process, the surface of the sound absorption layer (3) is in a concave-convex shape, and the concave-convex shape is specifically in an eggshell shape, a pyramid shape or a wedge shape;

the sound absorption layer (3) is connected with the sound insulation layer (2) through hot pressing, and the sound insulation layer (2) is connected with the self-adhesive damping shock absorption layer (1) through adhesive bonding of the self-adhesive damping shock absorption layer (1).

2. The composite damping sound insulation material according to claim 1, wherein: poe the density of the material is 3.5-4.5 kg/m.

3. The composite damping sound insulation material according to claim 1, wherein: the density of the polyurethane is 25-38 kg/m.

4. The composite damping sound insulation material according to claim 1, wherein: the thickness of the self-adhesive damping shock absorption layer (1) is 2 mm.

5. The composite damping sound insulation material according to claim 1, wherein: the thickness of the sound insulation layer (2) is 2 mm.

6. The composite damping sound insulation material according to claim 1, wherein: the total thickness of the eggshell-shaped sound absorption layer (3) is 15-50 mm, the height of the eggshell shape is 5-40 mm, and the maximum diameter of the eggshell shape is 20-40 mm.

7. The composite damping sound insulation material according to claim 1, wherein: the total thickness of the pyramid-shaped sound absorption layer (3) is 30-50 mm, and the height of the pyramid is 20-30 mm.

8. The composite damping sound insulation material according to claim 1, wherein: the total thickness of the sound absorption layer (3) in the shape of the wedge is 50-400 mm, the shape of the wedge comprises a base portion (31) and a wedge portion (32), the cross section of the base portion (31) is square, and the cross section of the wedge portion (32) is in the shape of an isosceles trapezoid.

9. The composite damping sound insulation material according to claim 1, wherein: and the self-adhesive damping shock absorption layer (1) is adhered with isolation paper on an adhesive surface for adhering with equipment.