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Silencing slice

A technology of sound-absorbing sheet and sound-absorbing material, which is applied in the field of acoustics, can solve problems such as the leakage quality of the sound-absorbing sheet fiber, and achieve the effects of saving manpower and material resources, light weight, and convenient installation and adjustment

Inactive Publication Date: 2016-01-06
上海声望声学科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a sound-absorbing sheet to solve the technical problems of fiber leakage and high quality of the sound-absorbing sheet in the prior art

Method used

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Embodiment Construction

[0022] In view of the fact that the sound-absorbing sheets in the prior art are mostly made of metal perforated plates as the covering material, the interior is filled with glass fibers. Although this method can reduce airflow noise, there is still the problem of glass fiber leakage, it is not suitable for occasions with high cleanliness requirements, and there are disadvantages such as high quality and difficult installation.

[0023] Based on this, this patent has designed a novel sound-absorbing sheet. The structural frame of the muffler consists of three parts: 1. The frame body is welded by metal materials; 2. The diversion cap at one end of the frame body is an arc-shaped structure, and the arc-shaped structure is processed by metal plates; , It is a wedge-shaped structure at the other end of the main body of the frame. The entire frame is processed by metal structure, which has sufficient strength. Compared with the metal perforated plate structure muffler, it has the c...

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Abstract

The invention discloses a silencing slice. The silencing slice comprises a frame body, a flow guide tip and a flow guide cap, wherein the frame body is used for being filled with sound absorption materials, the flow guide tip is arranged at one end of the frame body, and the flow guide cap is arranged at the other end of the frame body. The silencing slice can meet the requirement for noise reduction of a ventilation system; moreover, the problem of fiber leakage of the sound absorption materials is solved, and the silencing slice can be applied to occasions with the higher cleanness requirement. In addition, compared with a traditional silencing slice, the silencing slice is lighter, convenient to mount and capable of saving more manpower and material resources.

Description

technical field [0001] The invention relates to the technical field of acoustics, and in particular to a sound-absorbing sheet. Background technique [0002] In the prior art, anechoic sheets are often used in ventilation systems, and have a good noise reduction effect on airflow noise, while traditional anechoic sheets are mostly made of metal perforated plates as the protective material, and the interior is filled with glass fiber. Although the traditional method can reduce airflow noise, there are still some disadvantages: 1. When applied to ventilation ducts such as bends or other types of structures, the existing sound-absorbing sheets are filled with fiber-shaped metal perforated plates. Sound-absorbing materials will leak glass fibers and cause environmental pollution, which is not suitable for occasions with high cleanliness requirements; 2. Because the main body is made of perforated steel plates, it is heavy and difficult to install. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/24
CPCF24F13/24F24F2013/242
Inventor 罗伟
Owner 上海声望声学科技股份有限公司
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