Sound-absorbing wall

A technology of sound insulation layer and sound insulation board, which is applied to walls, sound insulation, floors, etc., can solve the problems of poor sound absorption effect, flammable sound absorption board, and general low-frequency noise effect, etc. Effect

Pending Publication Date: 2018-09-14
SUZHOU ANKEN ELECTRONICS TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to control the impact of the noise generated by the equipment inside the room on the outside world, sound-absorbing walls or noise-absorbing devices are generally installed indoors. At present, the sound-absorbing panels used in the existing sound-absorbing walls are flammable, have poor stability, and the sound-absorbing effect is also poor. High-frequency noise has a good sound-absorbing effect, and the effect on medium and low-frequency noise is average

Method used

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Embodiment Construction

[0016] The technical solution of the present invention will be described in further non-limiting detail below in combination with preferred embodiments and accompanying drawings.

[0017] Such as figure 1 The sound-absorbing wall shown includes a metal base plate 1, a sound-insulating layer 3, a sound-insulating panel 4, a Helmholtz cavity sound-insulating layer 5, and a sound-absorbing perforated panel 6, which are arranged in the above order, and the inner wall of the metal base plate 1 is coated with low-frequency sound-absorbing damping 2 .

[0018] When the sound wave is transmitted from the sound source to the sound-absorbing wall, it is first transmitted to the sound-absorbing perforated panel 6 , and the sound wave enters the Helmholtz cavity sound insulation layer 5 through the small holes of the sound-absorbing perforated panel 6 .

[0019] Such as figure 2 Shown is a structural cross-sectional view of the Helmholtz cavity sound insulation layer 5. The solid iron ...

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Abstract

The invention discloses a sound-absorbing wall comprising a metal bottom plate (1), a low-frequency sound-absorbing damping (2), sound-absorbing perforated face plate (6) and a sound insulation layer(3). The inner wall of the metal bottom plate (1) is coated with the low-frequency sound-absorbing damping (2), the sound-absorbing perforated face plate (6) and the sound insulation layer (3); the sound-absorbing wall further comprises a sound insulation plate (4) and a Helmholtz cavity sound insulation layer (5); and the sound-absorbing wall is sequentially provided with the metal bottom plate (1), the sound insulation layer (3), the sound insulation plate (4), the Helmholtz cavity sound insulation layer (5) and the sound-absorbing perforated face plate (6). When indoor noise is incident onthe sound-absorbing wall, the noise enters the wall body through the sound-absorbing perforated face plate (6) and finally reaches the metal bottom plate (1) through sound insulation layer by layer, the low-frequency, middle-frequency and high-frequency noise can be effectively insulated, and the positions between the sound insulation components are filled with sound-absorbing materials, so that the frequency characteristic of sound insulation of an enclosure structure is enhanced; and due to the fact that the bottom plate and the face plate are made of metal, the structure is stable, deformation is not prone to occurring, and the fireproof and moisture-proof effects are good.

Description

technical field [0001] The invention relates to a sound-absorbing wall, in particular to the technical field of sound-absorbing structures. Background technique [0002] In order to control the impact of the noise generated by the equipment inside the room on the outside world, sound-absorbing walls or noise-absorbing devices are generally installed indoors. At present, the sound-absorbing panels used in the existing sound-absorbing walls are flammable, have poor stability, and the sound-absorbing effect is also poor. High-frequency noise has a good sound-absorbing effect, and the effect on low- and medium-frequency noise is average. Contents of the invention [0003] The object of the present invention is to address the above-mentioned defects in the prior art, to provide a sound-absorbing wall that can effectively absorb low-, medium- and high-frequency noise, and meet the requirements of fire prevention and moisture resistance. [0004] In order to achieve the purpose ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/00E04B1/82
CPCE04B2/00E04B1/82
Inventor 付迅
Owner SUZHOU ANKEN ELECTRONICS TECH
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