CN214090442U

CN214090442U - Liquid metal sound insulation structure

Info

Publication number: CN214090442U
Application number: CN202021972342.7U
Authority: CN
Inventors: 于洋; 刘静
Original assignee: Beijing Dream Ink Technology Co Ltd
Current assignee: Beijing Dream Ink Technology Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-08-31
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a liquid metal sound insulation structure, relating to the technical field of sound insulation; this liquid metal sound-proof structure includes: a sound absorbing layer, a polyester sound insulating layer, a liquid metal sound insulating layer and a fiber layer which are of a laminated structure; wherein the liquid metal soundproof layer comprises: the liquid metal layer and the packaging layer coating the liquid metal layer; the sound absorption layer and the fiber layer are respectively positioned on the outer sides, and the fiber layer is used for being combined with the surface of an object. The embodiment of the utility model provides an in sound insulation structure combines high-quality liquid metal of high density and the low-quality polyester of high density, for traditional soundproof cotton, sound insulation effect is better to this sound insulation structure's simple structure, easy to carry out.

Description

Liquid metal sound insulation structure

Technical Field

The utility model belongs to the technical field of give sound insulation, especially, relate to a liquid metal sound-proof structure.

Background

In the building field, with the higher requirement for the sound insulation effect of people, the wall body and each building structure of a house need to have good sound insulation performance, most of the existing buildings adopt materials with the highest density to realize the good sound insulation effect of the wall body, then a sound insulation structure layer is bonded on the outer wall of the building structure such as the inner wall of the wall body, the outer wall of a pipeline and the like, the wall body formed by high-density materials mainly plays the roles of transmitting, blocking and reflecting sound waves, the sound insulation structure layer on the outer wall of the building structure plays the roles of isolating and reducing the frequency of the sound, so that the transmission of the sound is reduced to the minimum degree, but most of the existing sound insulation structure layers are formed by compounding a layer of sound insulation cotton on a rubber base material, have certain sound insulation effect, but because the penetration and blocking effects of the rubber base material on the sound are weaker, the thickness of the sound insulation cotton layer applied to the small building structures such as the pipeline and the like is thinner, resulting in poor sound insulation.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a liquid metal sound insulation structure to solve the problem of poor sound insulation effect in the prior art.

In some illustrative embodiments, the liquid metal sound insulating structure comprises: a sound absorbing layer, a polyester sound insulating layer, a liquid metal sound insulating layer and a fiber layer which are of a laminated structure; wherein the liquid metal soundproof layer comprises: the liquid metal layer and the packaging layer coating the liquid metal layer; the sound absorption layer and the fiber layer are respectively positioned on the outer sides, and the fiber layer is used for being combined with the surface of an object.

In some optional embodiments, a non-woven fabric layer is disposed between the sound absorbing layer and the polyester sound insulating layer.

In some alternative embodiments, the liquid metal sound-proof layer is made of room temperature solid low melting point metal or room temperature liquid low melting point metal.

In some alternative embodiments, a lightweight polyester acoustical layer is disposed between the fibrous layer and the polyester acoustical layer.

In some alternative embodiments, the lightweight polyester acoustical layer is selected from foamed polyester.

In some optional embodiments, the fiber layer is wall-hanging fiber mesh.

In some optional embodiments, the sound absorption layer is provided with sound absorption holes regularly arranged.

In some optional embodiments, the surface of the sound absorbing layer is provided with a decorative pattern.

In some optional embodiments, the liquid metal layer has a thickness in the range of 0.5mm to 3 mm.

In some alternative embodiments, the liquid metal layer encapsulation and the polyester acoustical layer are the same material.

Compared with the prior art, the utility model has the advantages of as follows:

the embodiment of the utility model provides an in sound insulation structure combines high-quality liquid metal of high density and the low-quality polyester of high density, for traditional soundproof cotton, sound insulation effect is better to this sound insulation structure's simple structure, easy to carry out.

Drawings

Fig. 1 is a first structural example of a liquid metal sound insulation structure in an embodiment of the present invention;

fig. 2 is a second structural example of the liquid metal sound insulation structure in the embodiment of the present invention.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. In this context, these embodiments of the invention may be referred to, individually or collectively, by the term "utility model" merely for convenience and without automatically limiting the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed.

It should be noted that, in the present invention, the technical features may be combined with each other without conflict.

The embodiment of the utility model discloses a liquid metal sound insulation structure, in particular to a structure example I of the liquid metal sound insulation structure in the embodiment of the utility model, as shown in figures 1-2; fig. 2 is a second structural example of the liquid metal sound insulation structure in the embodiment of the present invention. This liquid metal sound-proof structure includes: the sound absorbing layer 1, the polyester sound insulating layer 2, the liquid metal sound insulating layer 3, and the fiber layer 4 are laminated. The liquid metal soundproof layer 3 includes a liquid metal layer 31 and an encapsulating layer 32 covering the liquid metal layer 31. The sound absorption layer 1 and the fiber layer 4 are respectively located on the outermost sides of two sides of the sound insulation structure, the fiber layer 4 is used for being combined with the surface of an object, the combination mode is not limited to hanging, gluing, binding and the like, and the sound absorption layer 1 is exposed outside.

Specifically, the sound absorbing layer 1, the polyester sound insulating layer 2, the liquid metal sound insulating layer 3 and the fiber layer 4 in the embodiment of the present invention may be bonded by gluing, sewing or other conventional connecting methods.

In some embodiments, the utility model provides an in inhale sound layer 1 can choose for use materials such as polyester, and the sound hole of inhaling of regularly arranging is seted up to its upper surface, and after the sound wave got into and inhales the sound hole, the reflex effect can take place, and after the stack of sound wave, sound will diminish, can effectual reduction control echo.

Preferably, the surface of the sound absorption layer 1 is provided with a decorative pattern, and the decorative pattern is designed to avoid shielding the position of the sound absorption hole, so that the sensory experience of a user is improved.

In some embodiments, the polyester sound insulation layer 2 of the embodiments of the present invention may be selected to have a density ranging from 0.05 to 0.07g/cm³Of a polyester material such as polyurethane. Preferably, the polyester soundproof layer 2 is formed of a polyester resin having a density of 0.06g/cm³Of a polyester material. The polyester material in the embodiment has the characteristics of flexing resistance, good softness and high tensile strength, so that the installation of irregular and uneven wall bodies or other object surfaces can be met, and the softness of the polyester material also has a buffering effect on collision and has a collision-preventing effect.

In some embodiments, the liquid metal layer 31 in the liquid metal sound insulation layer 3 in the embodiments of the present invention may be a low melting point metal simple substance or alloy with a melting point below 300 ℃; specifically, in the melting point range, the liquid metal may be a low-melting-point metal in a room-temperature liquid state, such as gallium, gallium-indium alloy, gallium-indium-tin-zinc alloy, and the like; besides the low-melting-point metal in the room-temperature liquid state, the low-melting-point metal in the room-temperature solid state can be selected, such as bismuth indium alloy, bismuth tin alloy, indium tin alloy, bismuth indium tin alloy and the like. Wherein, the relative atomic mass and density of the low melting point metal element are shown in the following table.

Specifically, the liquid metal layer in the embodiments of the present invention may be spread by melting the low melting point metal into a liquid state, and then brushing or pouring. For example, the liquid metal is coated on the silicone film to form a liquid metal layer, and then the silicone film is coated on the liquid metal layer and the liquid metal is encapsulated inside the silicone film. Wherein, the silica gel film can also be replaced by vulcanized silica gel or other materials; for another example, a package structure with a cavity layer is formed, and then liquid metal in a molten state is injected into the package structure, and then the filling opening is sealed.

The thickness range of the liquid metal layer can be 0.5-3 mm, and the liquid metal layer in the thickness range can play a certain sound insulation effect; preferably, the thickness of the liquid metal layer is selected to be 0.5-1mm for the low-melting-point metal which is solid at room temperature, and the liquid metal layer can also have a certain degree of bending deformation capability, so that the laying requirement of the lower degree of the profile surface is met.

For each layer of the interface between two spaces, when a sound wave is incident on the interface from one chamber, the sound wave excites vibration of the spacer to radiate the sound wave to the other space in a vibration mode, which is a transmitted sound wave. The ratio of the transmission sound wave capacity to the incident sound wave energy in a certain area is called as the transmission coefficient, and for a liquid metal layer with large mass per unit area, the liquid metal layer can only excite the tiny vibration of the interlayer when the sound waves are incident, so that the sound wave energy radiated to another space is small, and the sound insulation effect is better.

In some embodiments, a non-woven fabric layer may be further disposed between the sound absorption layer 1 and the polyester sound insulation layer 2 of the liquid metal sound insulation structure, and the non-woven fabric layer may improve the bonding strength between the sound absorption layer 1 and the polyester sound insulation layer 2, and may improve the structural strength and stability of the whole sound insulation structure.

In some embodiments, a lightweight polyester acoustical layer is disposed between the fibrous layer 4 and the polyester acoustical layer 2. The density of the composite material is in the range of 0.01-0.02kg/cm³The polyurethane semi-rigid foam of (1). Preferably, the lightweight polyester sound insulation layer is made of a material having a density of 0.015kg/cm³The polyurethane semi-rigid foam of (1).

In some embodiments, the fiber layer 4 may be a fiber mesh for hanging on a wall, and the fiber mesh may be stably attached to the surface of the wall in cooperation with a corresponding wall material, so as to improve and guarantee the installation stability of the liquid metal sound insulation structure.

In some embodiments, the liquid metal soundproof layer 3 is encapsulated in the polyester soundproof layer 2, and the polyester soundproof layer 2 is used as an encapsulation layer of the liquid metal layer.

Example 1

As shown in fig. 1, the liquid metal sound insulation structure includes a sound absorption layer 1, a polyester sound insulation layer 2, a liquid metal sound insulation layer 3, and a fiber layer 4, which are closely stacked. The liquid metal acoustic insulation layer 3 includes a liquid metal layer 31 and an encapsulation layer 32. The liquid metal layer 31 is made of low melting point metal which is solid at room temperature, and can be adhered to the wall surface of the building.

Example 2

As shown in fig. 2, the liquid metal sound-proofing structure includes: a sound absorbing layer 1, a polyester sound insulating layer 2, and a fiber layer 4 which are closely stacked; the liquid metal layer package and the polyester sound insulation layer are made of the same material. Wherein, the liquid metal is low-melting point metal in liquid state at room temperature, and the sound insulation structure is suitable for being coiled and coated on the outer wall of the pipeline.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A liquid metal sound insulating structure, comprising: a sound absorbing layer, a polyester sound insulating layer, a liquid metal sound insulating layer and a fiber layer which are of a laminated structure; wherein the liquid metal soundproof layer comprises: the liquid metal layer and the packaging layer coating the liquid metal layer; the sound absorption layer and the fiber layer are respectively positioned on the outer sides, and the fiber layer is used for being combined with the surface of an object.

2. The liquid metal sound-insulating structure according to claim 1, wherein a non-woven fabric layer is provided between the sound-absorbing layer and the polyester sound-insulating layer.

3. The liquid metal acoustical structure of claim 1 wherein the liquid metal acoustical layer is selected from the group consisting of room temperature solid low melting point metals and room temperature liquid low melting point metals.

4. The liquid metal acoustical structure of claim 1 wherein a lightweight polyester acoustical layer is disposed between the fibrous layer and the polyester acoustical layer.

5. A liquid metal acoustical structure as set forth in claim 4, wherein said lightweight polyester acoustical layer is selected from foamed polyester.

6. A liquid metal acoustical insulation structure as set forth in claim 1, wherein said fibrous layer is selected from the group consisting of wall-hanging fiber mesh.

7. The liquid metal sound-insulating structure according to claim 1, wherein the sound-absorbing layer is provided with sound-absorbing holes regularly arranged.

8. The liquid metal sound insulating structure according to claim 1, wherein the liquid metal layer has a thickness in the range of 0.5mm to 3 mm.

9. The liquid metal acoustical structure of claim 1 wherein the liquid metal layer encapsulation and the polyester acoustical layer are the same material.