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Advertisement placard with resonance acoustical absorption characteristic

A technology of placards and vibration characteristics, which is applied in the direction of advertisements, signs, sounding equipment, etc., can solve the problem of not eliminating the connection of urban noise, and achieve the effect of reducing noise hazards

Inactive Publication Date: 2008-11-12
李强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these advertising placards have not been linked to the elimination of urban noise in addition to their advertising and beautification functions.

Method used

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  • Advertisement placard with resonance acoustical absorption characteristic
  • Advertisement placard with resonance acoustical absorption characteristic
  • Advertisement placard with resonance acoustical absorption characteristic

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] figure 1 Among them, the advertising placard with resonance and sound-absorbing characteristics is a closed box composed of an advertising light box frame 3, a front advertising surface 1, and a rear advertising surface 2. A lighting tube 4 is installed in the box, and the front advertising surface 1 is painted with light transmission. The cloth material and the rear advertising surface 2 adopt plexiglass material, and the vibration frequencies of the two are different, and the closed box constitutes a resonant cavity.

example 2

[0022] figure 2 Among them, the advertising placard is fixed on the wall 5 of the building through the frame 3, so that the front advertising surface 1 of the advertising placard is kept at a certain distance from the wall 5, and the wall 5 of the building is used as the rigid rear advertising surface to form a resonant cavity. to achieve the purpose of absorbing noise. It can be used both indoors and outdoors. The material for making the front advertising surface can be cloth, film, or sheet. For indoor use, breathable fabrics can be used. When making outdoor large-scale advertising placards, micro-perforated panels with sound-absorbing functions can also be used as the lining of the billboards. The specific method is to stick the spray-painted cloth or plastic film printed with advertising pattern on the micro-perforated plate, and then puncture many air-permeable small eyes on the spray-painted cloth or plastic film at the opening of the micro-perforated plate. In the ...

example 3

[0024] image 3 Among them, the principle of resonant cavity can also be applied to the production of independent large advertising placards next to roads and railways. The advertising placard is a double-sided box structure supported by single or multiple columns, and the rear advertising surface is a rigid load-bearing surface, which is made of frames, beams, vertical beams, and plates that meet the strength required by architectural design. The front advertising surface 1 is a non-load-bearing surface, mainly made of cloth or sheet. The front advertising surface 1 and the rear advertising surface 2 should have significantly different characteristic frequencies to achieve the purpose of absorbing noise. The front advertising surface 1 can also be made with a micro-perforated plate, or the spray-painted cloth or plastic film printed with an advertisement pattern can be pasted on the micro-perforated plate, and then the spray-painted cloth or plastic film can be punctured at ...

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Abstract

The invention discloses an advertising board with a characteristic of resonance and sound-absorption, which is a sealed container body comprising a framework, a front advertisement surface and a back advertisement surface, wherein the front advertisement surface and the back advertisement surface have different vibrating frequencies and the container body forms a resonator. Compared with the existing advertising board, the advertising board of the invention has all the functions of the advertising board of the prior art; moreover, as the front advertisement surface and the back advertisement surface of the invention have different materials, thus having different vibrating frequencies, the container body forms a resonator, which can effectively absorbs low-frequency noises, reduces the harm done by noises and therefore returns a quiet city.

Description

technical field [0001] The invention belongs to an advertisement placard, in particular to an advertisement placard with the function of absorbing noise. Background technique [0002] In recent years, environmental noise caused by the development of industry and transportation has become an important public hazard, and it has a wider impact than other public hazards. Controlling environmental noise has become an important content of environmental protection at home and abroad. The most fundamental way to control environmental noise is to control the noise source. However, how to effectively control environmental noise pollution under the condition of rapidly increasing noise sources is a very difficult problem to be solved, and there is no successful precedent in the world at present. [0003] The sound frequency that normal people can hear is 20-20000 Hz, and the sound with frequency lower than 500 Hz is generally called low-frequency sound. Compared with high-frequency s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F15/02G09F19/22G10K11/172
Inventor 李强李杏健李杏康
Owner 李强
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