CN213675772U

CN213675772U - Sound insulation floor

Info

Publication number: CN213675772U
Application number: CN202022372859.9U
Authority: CN
Inventors: 王新颖; 王冰松; 李莉; 刘志勇; 魏玲玲
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-13
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a sound insulation floor. The sound insulation floor comprises a first panel, a damping layer, a honeycomb structure, a sound insulation layer and a second panel which are sequentially stacked, wherein the first panel and the second panel are parallel to each other. The utility model provides a poor problem of isolation floor performance in prior art.

Description

Sound insulation floor

Technical Field

The utility model relates to a rail vehicle equipment field particularly, relates to a sound insulation floor.

Background

The wheel-rail noise is the main noise source of the rail vehicle, so the sound insulation performance is an important index of the interior decoration floor. The sound insulation design of the interior decorative floor of the railway vehicle is mainly used for improving the sound insulation performance by improving the surface density of the floor. If the interior decorative floor adopts the high-density multi-layer plywood, the sound insulation performance is improved, and the transmission of an external noise source to the interior of the vehicle is reduced, but the sound insulation design method needs to increase the weight of the floor and is not beneficial to the light weight of the vehicle. There is also a sound insulation structure with light weight, such as aluminum honeycomb floor, which has significant advantages in light weight, but has sound insulation performance significantly lower than plywood floor.

Therefore, the sound insulation floor in the prior art has the problem of poor use performance.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a sound insulation floor to solve the problem of poor performance of sound insulation floors in the prior art.

In order to accomplish the above object, according to an aspect of the present invention, there is provided a soundproof floor including a first panel, a damping layer, a honeycomb structure, a soundproof layer and a second panel which are sequentially stacked, wherein the first panel and the second panel are parallel to each other.

Further, the honeycomb structure includes: a plurality of honeycomb layers; the honeycomb structure comprises one or more middle plates, and at least one middle plate is arranged between two adjacent honeycomb layers.

Further, the honeycomb layer and the intermediate plate are arranged in parallel with each other.

Further, the honeycomb layer is two, has an intermediate plate between two honeycomb layers, and the intermediate plate has a plurality of through-holes, and a plurality of through-holes interval sets up.

Furthermore, each crystal lattice of each honeycomb layer at least corresponds to one through hole; or the through holes are communicated with the lattices of the honeycomb layer in a one-to-one correspondence manner.

Further, the distance between two adjacent through holes is greater than or equal to 1mm and less than or equal to 20 mm.

Further, the length of the lattice of the different honeycomb layers is different.

Further, the length of the lattice of the honeycomb layer is 0.5mm or more and 10mm or less.

Further, the honeycomb structure further includes a filling portion filled inside the lattice of the honeycomb layer.

Furthermore, the filling parts filled in the crystal lattices of different honeycomb layers are different in material, and the material of the filling parts at least comprises a foaming sound-absorbing material or a fiber sound-absorbing material.

Further, damping layer, puigging, honeycomb all are parallel with first panel.

Further, the thickness of the honeycomb structure is larger than that of the damping layer; and/or the thickness of the honeycomb is greater than the thickness of the acoustical layer.

Use the technical scheme of the utility model, sound insulation floor in this application is including the first panel of superpose in order, damping layer, honeycomb, puigging and second panel, and wherein, first panel and second panel are parallel to each other. In the application, by arranging the damping layer, the honeycomb structure and the sound insulation layer, the design of multi-layer sound absorption and sound insulation composite noise reduction is realized, and the sound insulation quantity of the sound insulation floor is effectively improved. Meanwhile, due to the honeycomb structure, the light-weight design of the sound insulation floor is realized. Consequently, the soundproof floor in this application has solved the poor problem of soundproof floor performance among the prior art effectively.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a soundproof floor according to an embodiment of the present invention;

fig. 2 shows an enlarged view at a in fig. 1.

Wherein the figures include the following reference numerals:

10. a first panel; 20. a damping layer; 30. a sound insulating layer; 40. a second panel; 50. a honeycomb layer; 60. a middle plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the poor problem of floor performance that gives sound insulation among the prior art, this application provides a floor gives sound insulation.

As shown in fig. 1 and 2, the soundproof floor of the present application includes a first panel 10, a damping layer 20, a honeycomb structure, a soundproof layer 30, and a second panel 40, which are sequentially stacked, wherein the first panel 10 and the second panel 40 are parallel to each other. In the application, by arranging the damping layer 20, the honeycomb structure and the sound insulation layer 30, the design of multi-layer sound absorption and sound insulation composite noise reduction is realized, and the sound insulation amount of the sound insulation floor is effectively improved. Meanwhile, due to the honeycomb structure, the light-weight design of the sound insulation floor is realized. Consequently, the soundproof floor in this application has solved the poor problem of soundproof floor performance among the prior art effectively.

Regional noise in rail vehicle floor is up propagating from down in this application, the utility model discloses from noise propagation path, through sound insulation, sound absorption, damping composite design, improve honeycomb floor each and spread the layer and fall the performance of making an uproar.

It should also be noted that when the soundproof floor according to the present application is installed on a railway vehicle, the first panel 10 is located above the second panel 40. The second panel 40 faces the first panel 10 in the direction of sound transmission. When the noise is transmitted to the first panel 10 through the honeycomb structure, the vibration of the first panel 10 can be caused, so that the vibration amplitude of the first panel 10 can be restrained and attenuated by the damping layer 20 by arranging the damping layer 20, thereby reducing the radiation noise to a passenger room and improving the sound insulation performance of the floor; and the vibration amplitude of the first panel 10 after being restrained by damping is reduced, so that the vibration energy which can be sensed by a human body is reduced, and the comfort of the sound insulation floor is further improved.

Specifically, the honeycomb structure includes a plurality of honeycomb layers 50 and an intermediate plate 60. The intermediate plate 60 is one or more, and at least one intermediate plate 60 is provided between two adjacent honeycomb layers 50. By such an arrangement, the sound absorption performance of the sound insulation floor can be effectively improved.

Preferably, the honeycomb layer 50 and the middle plate 60 are disposed parallel to each other. Through setting up like this, can improve the stability of floor overall structure gives sound insulation effectively to can guarantee effectively that the floor gives sound insulation can not appear warping.

In one embodiment of the present application, there are two honeycomb layers 50, and there is a middle plate 60 between the two honeycomb layers 50, and the middle plate 60 has a plurality of through holes, and the plurality of through holes are spaced apart. In addition, in the present embodiment, the middle plate 60 is a micro-perforated plate, and the design of sound absorption performance in different frequency bands can be performed by designing the porosity of the middle plate, so as to improve the noise reduction performance of the floor in different frequency bands.

Of course, a single layer solid panel structure may be used instead of a microperforated panel.

Optionally, at least one through hole is provided for each crystal lattice of each honeycomb layer 50, or a plurality of through holes are in one-to-one correspondence with a plurality of crystal lattices of the honeycomb layer 50.

Optionally, the distance between two adjacent through holes is greater than or equal to 1mm and less than or equal to 20 mm.

In one particular embodiment of the present application, the length of the lattice of different honeycomb layers 50 is different. Through setting up like this, can make different honeycomb layer 50 form different sound cavity structures, widen the sound absorption performance frequency channel, improve the performance of making an uproar of floor.

In addition, in the application, the design of three different sound absorption frequency bands is realized by designing the porosity of the micro-perforated plate and the size of the crystal lattices of different honeycomb layers 50, the sound absorption frequency band range is further improved, and the sound absorption performance of the sound insulation floor is improved.

Preferably, the length of the lattice of the honeycomb layer 50 is 0.5mm or more and 10mm or less.

Specifically, the honeycomb structure further includes a filling portion that is filled inside the crystal lattice of the honeycomb layer 50. By providing such a structure, the acoustic impedance characteristics of the acoustic cavity of the honeycomb layer 50 can be further improved, and the noise reduction performance of the soundproof floor can be improved.

Alternatively, the material of the filling portions filled in the crystal lattices of the different honeycomb layers 50 is different, and the material of the filling portions at least includes a foamed sound absorbing material or a fibrous sound absorbing material. Through setting up like this, can widen effectively and inhale the sound frequency channel to improve the performance of making an uproar of giving sound insulation floor.

Preferably, the damping layer 20, the soundproof layer 30, and the honeycomb structure are all parallel to the first panel 10.

Specifically, the thickness of the honeycomb structure is larger than the thickness of the damping layer 20; and the thickness of the honeycomb structure is greater than the thickness of the soundproof layer 30.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. through sound insulation, sound absorption and damping composite design, the noise reduction design of the lightweight floor is realized while the sound insulation performance is improved;

2. the structure is simple, and the performance is stable;

3. has strong adaptability and higher comfort.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An acoustic floor comprising a first panel (10), a damping layer (20), a honeycomb structure, an acoustic layer (30) and a second panel (40) stacked in this order, wherein the first panel (10) and the second panel (40) are parallel to each other.

2. The acoustic flooring of claim 1, wherein the honeycomb structure comprises:

a plurality of honeycomb layers (50);

the number of the intermediate plates (60) is one or more, and at least one intermediate plate (60) is arranged between two adjacent honeycomb layers (50).

3. The acoustic floor panel as claimed in claim 2, wherein the honeycomb layer (50) and the middle plate (60) are arranged in parallel with each other.

4. The acoustical floor of claim 2 wherein there are two honeycomb layers (50), two of the honeycomb layers (50) having one of the intermediate plates (60) therebetween, and the intermediate plate (60) having a plurality of through holes, the plurality of through holes being spaced apart.

5. The acoustical floor of claim 4,

each lattice of each honeycomb layer (50) corresponds to at least one through hole; or

The through holes are communicated with the lattices of the honeycomb layer (50) in a one-to-one correspondence mode.

6. The soundproof floor of claim 4, wherein a distance between two adjacent through holes is 1mm or more and 20mm or less.

7. The acoustic floor panel according to claim 2, wherein the length of the lattice of different honeycomb layers (50) is different.

8. The acoustic floor according to any one of claims 2 to 7, wherein the length of the lattice of the honeycomb layer (50) is 0.5mm or more and 10mm or less.

9. The acoustic floor according to any one of claims 2 to 7, wherein the honeycomb structure further comprises a filling portion filled inside the lattice of the honeycomb layer (50).

10. The acoustic floor panel according to claim 9, wherein the material of the filling portions filled in the crystal lattices of the different honeycomb layers (50) is different, and the material of the filling portions includes at least a foamed sound absorbing material or a fibrous sound absorbing material.

11. The acoustic floor according to any one of claims 1 to 7, wherein the damping layer (20), the acoustic layer (30), the honeycomb structure are all parallel to the first panel (10).

12. The sound-insulating floor as claimed in any one of claims 1 to 7,

the thickness of the honeycomb structure is greater than the thickness of the damping layer (20); and/or

The thickness of the honeycomb structure is greater than the thickness of the sound insulating layer (30).