CPC G10K 11/172 (2013.01) [E04B 1/86 (2013.01); E04B 2001/8414 (2013.01); E04B 2001/8452 (2013.01)] | 10 Claims |
1. 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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