Silencing apparatus

A sound-absorbing device and sound-absorbing technology, applied to sound-proof doors/windows, windows/doors, building components, etc., can solve the problems of cost increase, time-consuming construction work, large installation space of shutters, etc., and achieve the effect of improving the sound-absorbing effect
CN101240684AInactive Publication Date: 2008-08-13EMU KEE SEIKO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EMU KEE SEIKO
Publication Date
2008-08-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a sound attenuation device. The noise reduction device has a louver structure in which a plurality of blades are arranged, and ventilation passages formed between the blades are used to ventilate the inside and outside of the building. Each of the blades includes a pair of sound-absorbing portions disposed on the noise side and the silent side, respectively, and a sound wave introducing portion connecting the sound-absorbing portions. Each blade body is arranged such that the longitudinal axis of one of the mufflers extends in an oblique direction parallel to the longitudinal axis of the other muffler, but the one axis is offset from the other.
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Description

technical field

[0001] The present invention relates to a noise reduction device formed with a louver structure in which a plurality of blades are arranged to form a ventilation passage between the blades. More specifically, it involves installing the louver structure constituting the noise reduction device on the wall of the building structure, so that the noise source on one side of the louver structure passes through the ventilation passage between the blades to the other side together with the outside air. (Silent side) A sound-absorbing device that reduces the energy of propagating noise sound waves. Background technique

[0002] In the past, the sound insulation wall has been widely known as a device for preventing noise generated from automobiles, construction sites, and other noise sources. Install a wall made of light-transmitting resin board or metal parts beside the road or around the construction site, so that the noise generated on one side of the wall cannot b...

Claims

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