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Eco-friendly acoustic panel of tube structures with improved sound absorption performance of low frequency band
Eco-friendly acoustic panel of tube structures with improved sound absorption performance of low frequency band
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机译：管结构的环保隔音板，改善了低频段的吸声性能
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摘要
The present invention relates to an environmentally-friendly acoustic panel of a tube structure with improved low frequency band sound absorption performance, providing aesthetics as a sound incident delay part is made of traditional Korean paper, thereby increasing interior effect. Moreover, since a wall and ceiling are finished by the traditional Korean paper, the generation of harmful gas is minimized. Moreover, since the traditional Korean paper has excellent permeability, and excellent moisture absorption and drying properties, permeability, humidity control, and heat insulation are enhanced. Moreover, since the sound incident delay part made of the traditional Korean paper simultaneously generates a resonant reaction by film vibration and a sound absorption reaction in a micropore, sound absorption property is excellent. According to the present invention, the acoustic panel comprises: the sound incident delay part to delay indoor noise from entering an offset space of a sound absorption duct; and a sound incident acceleration part installed in an auxiliary installation plate, allowing an indoor space and the offset space of the sound absorption duct to be directly connected to allow the indoor noise to enter the offset space without resistance, thereby generating a time difference from the noise passing through the sound incident delay part. Accordingly, a difference in times entering the offset space between a noise wave by the film vibration of the sound incident delay part and a noise wave passing through the sound incident acceleration part, thereby generating destructive interference in the offset space.
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