US 11,893,971 B2
Sound insulation plate and sound insulation structure using the same
Jong Jin Park, Sejong-si (KR); Jun Hyuk Kwak, Sejong-si (KR); and Hak Joo Lee, Daejeon (KR)
Assigned to CENTER FOR ADVANCED META-MATERIALS, Daejeon (KR); and JJNS CO., LTD., Daejeon (KR)
Appl. No. 17/601,955
Filed by CENTER FOR ADVANCED META-MATERIALS, Daejeon (KR); and JJNS CO., LTD., Daejeon (KR)
PCT Filed Mar. 16, 2021, PCT No. PCT/KR2021/003220
§ 371(c)(1), (2) Date Oct. 7, 2021,
PCT Pub. No. WO2022/158638, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 10-2021-0007947 (KR), filed on Jan. 20, 2021.
Prior Publication US 2023/0124844 A1, Apr. 20, 2023
Int. Cl. G10K 11/172 (2006.01); E04B 1/86 (2006.01); E04B 1/84 (2006.01)
CPC G10K 11/172 (2013.01) [E04B 1/86 (2013.01); E04B 2001/8414 (2013.01); E04B 2001/8452 (2013.01)] 10 Claims
OG exemplary drawing
 
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.