Efficient space-extended composite sound insulation structure

A sound insulation and high-efficiency technology, applied in the direction of sound insulation, building components, building structures, etc., can solve problems such as poor effect, achieve good sound insulation effect, and prolong the effect of sound wave propagation path

Pending Publication Date: 2017-09-15
上海声望声学科技股份有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, it is more common to add multilayer boards with cavities (or sound absorption and damping layers) to achiev

Method used

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  • Efficient space-extended composite sound insulation structure
  • Efficient space-extended composite sound insulation structure
  • Efficient space-extended composite sound insulation structure

Examples

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Embodiment Construction

[0018] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0019] Such as Figure 1-3 The space-extended high-efficiency composite sound insulation structure shown includes a sound insulation base 1, and the sound insulation base 1 is a conventional board-cavity-board composite sound insulation structure, and the sound insulation base 1 can also be a board-porous sound-absorbing material -Composite sound insulation structure of the board, one side of the sound insulation base layer 1 ...

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Abstract

The invention relates to an efficient space-extended composite sound insulation structure. The structure comprises a sound insulation base layer, and the sound insulation base layer is of a regular plate-cavity-plate composite sound insulation structure; one side of the sound insulation base layer is provided with a low-frequency sound absorption body which is of a hollow structure in a composited mode; and a continuous and bent acoustic wave passageway is formed in the low-frequency sound absorption body, and an acoustic wave inlet is formed in the side face, be back on to the sound insulation base layer, of the acoustic wave passageway. According to the efficient space-extended composite sound insulation structure, through structural design of the continuous and bent acoustic wave passageway in the low-frequency sound absorption body, the acoustic wave propagation route is prolonged, and acoustic reactance is improved; and a good sound insulation effect is achieved aiming at low-frequency noise, and by adjusting the length of the acoustic wave passageway, the different acoustic wave frequency band ranges can be aimed at.

Description

technical field [0001] The invention belongs to the technical field of sound insulation structures\materials, and in particular relates to a space-extending high-efficiency composite sound insulation structure. Background technique [0002] In daily life, we can see various sound insulation structures everywhere, such as doors, windows, walls, screens, sound barriers, sound insulation covers, etc., to deal with various annoying noises. Studies have shown that sound insulation generally obeys the law of mass, that is, if you want to have a good sound insulation effect, you need a sound insulation structure with a larger surface density. If you want to obtain a good low-frequency sound insulation effect, you need a fairly thick insulation acoustic structure. Of course, we can "beyond" the law of mass through some compound structures. [0003] At present, it is common to add multilayer boards with cavities (or sound absorption and damping layers) to achieve an optimized sound...

Claims

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Application Information

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IPC IPC(8): E04B1/86E04B1/84
CPCE04B1/84E04B1/86E04B2001/8419E04B2001/849E04B2001/8457
Inventor 罗伟黄思博吕波
Owner 上海声望声学科技股份有限公司
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