Composite noise reduction device

A compound and noise-reducing technology, which is applied in the direction of sound-emitting devices and instruments, can solve the problems of excessive volume, narrow sound absorption bandwidth, and failure to achieve sound absorption and noise reduction, and achieve the effect of enhancing the sound absorption effect

Pending Publication Date: 2020-01-14
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Noise is a kind of sound that causes irritability or is too loud and endangers human health. With the continuous development of society, people have higher and higher requirements for the environment. For noise pollution, in recent years, it is more common to use micro-perforated plates The sound-absorbing structure, that is, many holes with a diameter of less than 1mm are punched on the board, and they are installed where they are needed. limited sound effects

Method used

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Examples

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] See Figure 1 to Figure 3 , a compound noise reduction device in a preferred embodiment of the present invention, which can be fixed on a rigid wall surface, and the rigid wall surface can be a support frame, a wall surface, etc., which are not specifically limited here. According to the actual situation depends. The composite noise reduction device includes a micro-perforated plate 1 and a backing 4 connected to the micro-perforated plate 1. The micro-perforated plate 1 and the backing 4 can be connected detachably or fixedly, depending on the actual situation. . The micro-perforated plate 1 is provided with several sound-absorbing micro-holes 2 , and the sound-...

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Abstract

The invention relates to a composite noise reduction device. The composite noise reduction device can be fixed on a rigid wall. The composite noise reduction device includes a micro-perforated plate and a backing connected to the micro-perforated plate; a plurality of sound-absorbing micro-holes is arranged passing through the micro-perforated plate; the backing is provided with a plurality of sound-absorbing mechanisms corresponding to the positions of the sound-absorbing micro-holes to enhance the sound-absorbing performance; and the sound-absorbing mechanisms are penetrated on the backing.According to the application, the backing is further provided on the original micro-perforated plate, and the sound-absorbing mechanisms corresponding to the positions of the sound-absorbing micro-holes are provided on the backing; therefore, the sound-absorbing effect is further enhanced.

Description

technical field [0001] The invention relates to a composite noise reduction device, which belongs to the technical field of mechanical noise reduction. Background technique [0002] Noise is a kind of sound that causes irritability or is too loud and endangers human health. With the continuous development of society, people have higher and higher requirements for the environment. For noise pollution, in recent years, it is more common to use micro-perforated plates The sound-absorbing structure, that is, many holes with a diameter of less than 1mm are punched on the board, and they are installed where they are needed. Sound effects are limited. Contents of the invention [0003] The object of the present invention is to provide a composite noise reduction device, which has a simple structure and is easy to operate. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a composite noise reduction device, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/162G10K11/172
CPCG10K11/162G10K11/172
Inventor 王刚李国防李亮孔德瑜孙家圆黄鹏
Owner SUZHOU UNIV
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