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公开(公告)号：US20250157448A1
公开(公告)日：2025-05-15
申请号：US18725583
申请日：2022-11-30
Inventor： Wonju JEON , Hyeonbin RYOO , Jiwan KIM
IPC: G10K11/172
Abstract: The present invention relates to a broadband sound absorption device using area division, the device comprising: Helmholtz resonators including a neck portion and a cavity portion connected to the neck portion and having a predetermined area and thickness; and a unit sound absorber including at least one pair of the Helmholtz resonators, wherein a plurality of unit absorbers are arranged on a plane or curved surface, and the plurality of sound unit absorbers are formed to have cavity portions with different areas to minimize the thickness while enabling sound absorption for a wider band.
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