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US 11,893,971 B2Granted
Sound insulation plate and sound insulation structure using the same
AssigneesCenter for Advanced Meta-Materials, Jjns Co., Ltd.
InventorsJong Jin Park, Jun Hyuk Kwak, Hak Joo Lee
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Abstract
A sound insulation plate includes a patterned frame and an elastic membrane, wherein the patterned frame includes a central pattern region and multiple peripheral pattern regions arranged around the central pattern region, the multiple peripheral pattern regions being separated from the central pattern region by a separation bar, and wherein the elastic membrane is mounted on the patterned frame to block passage of air and converts airborne sound waves into elastic waves.
Claims10
A sound insulation plate comprising:
- a patterned frame comprising a central pattern region and multiple peripheral pattern regions arranged around the central pattern region, the multiple peripheral pattern regions being separated from the central pattern region by a separation bar;
- and
- an elastic membrane mounted on the patterned frame and blocking passage of air while converting airborne sound waves into elastic waves,
- wherein, at a resonant frequency of the sound insulation plate, a direction of displacement of a portion of the elastic membrane within the central pattern region is opposite to a direction of displacement of a portion of the elastic membrane within the peripheral pattern regions.
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Dependencies are inferred from the claim text.