Eco-friendly acoustic panel of tube structures with improved sound absorption performance of low frequency band

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...

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Bibliographic Details
Main Authors HEO SUNG WOOK, LEE DONG HOON
Format Patent
LanguageEnglish
Korean
Published 22.02.2018
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Summary: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. 본 발명은 저주파 대역의 흡음성능을 향상시킨 튜브 구조의 에코 어코스틱 패널에 관한 것을, 음파입사지연부가 한지로 이루어진 지막으로 이루어지므로 미감이 뛰어나며, 이에 따라 실내 인테리어 효과가 상승된다. 또한, 벽체 및 천장이 한지로 마감처리되므로 화재시 유해가스 발생이 최소화된다. 그리고, 한지의 특성상 통기성이 우수하고 수분 흡수 및 건조성이 뛰어나므로 통기성, 습도 조절, 보온성이 향상된다. 또한, 한지로 이루어진 음파입사지연부는 막진동에 의한 공명 작용과 마이크로 기공에서의 흡음 작용이 동시에 발생되므로 흡음 성능이 뛰어나다. 또한 본 발명은, 실내의 소음이 흡음덕트의 상쇄공간으로 유입되는 것을 지연시키는 음파입사지연부와; 부속설치판에 설치되고 실내 공간과 흡음덕트의 상쇄공간이 직통으로 연결되도록 하여서 실내의 소음이 저항없이 상쇄공간으로 유입되도록 하여서 음파입사지연부를 통과한 소음과 시간차가 발생되도록 하는 음파입사가속부가 구비된다. 따라서, 음파입사지연부의 막진동에 의한 소음파와 음파입사가속부를 통과한 소음파 사이에 상쇄공간으로 유입되는 시간차가 발생되어서 상쇄공간에서 소멸간섭이 발생된다.
Bibliography:Application Number: KR20170130081