US 11,854,522 B2
Sound absorbing structure having one or more acoustic scatterers attached to a transparent panel
Xiaoshi Su, Ann Arbor, MI (US); Debasish Banerjee, Ann Arbor, MI (US); Tomohiro Miwa, Toyota (JP); Yasushi Hirata, Nagakute (JP); and Reimi Emoto, Nagoya (JP)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US); and Toyota Jidosha Kabushiki Kaisha, Toyota (JP)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US); and Toyota Jidosha Kabushiki Kaisha, Toyota (JP)
Filed on Feb. 10, 2021, as Appl. No. 17/172,670.
Claims priority of provisional application 63/111,911, filed on Nov. 10, 2020.
Prior Publication US 2022/0148555 A1, May 12, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10K 11/172 (2006.01); G10K 11/162 (2006.01); B60R 13/08 (2006.01); E04B 1/86 (2006.01); E04B 1/84 (2006.01)
CPC G10K 11/172 (2013.01) [B60R 13/0815 (2013.01); E04B 1/86 (2013.01); G10K 11/162 (2013.01); E04B 2001/849 (2013.01); E04B 2001/8414 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sound absorbing structure comprising:
a panel having a first side and a second side, the first side of the panel being positioned to face a source of a noise, the panel being at least partially transparent;
at least one acoustic scatterer coupled to the first side of the panel, the at least one acoustic scatterer having a resonant frequency;
the at least one acoustic scatterer having an opening, a first channel, and a second channel, the volumes of the first channel and the second channel are substantially equal to each other;
the first channel has a first channel open end and a first channel terminal end, the first channel terminal end forms a first chamber, the first channel open end being in fluid communication with the opening;
the second channel has a second channel open end and a second channel terminal end, the second channel terminal end forms a second chamber, the second channel open end being in fluid communication with the opening;
the first channel terminal end and the second channel terminal end are separate from one another; and
wherein the first channel and the second channel extend parallelly along the length of the at least one acoustic scatterer.
 
15. A system for reducing noise comprising;
a first space;
a second space,
a panel at least partially separating the first space from the second space, the panel having a first side and a second side and being at least partially transparent;
at least one acoustic scatterer coupled to the first side of the panel, the at least one acoustic scatterer having a resonant frequency;
the at least one acoustic scatterer having an opening, a first channel, and a second channel, the volumes of the first channel and the second channel are substantially equal to each other;
the first channel has a first channel open end and a first channel terminal end, the first channel terminal end forms a first chamber, the first channel open end being in fluid communication with the opening;
the second channel has a second channel open end and a second channel terminal end, the second channel terminal end forms a second chamber the second channel open end being in fluid communication with the opening;
the first channel terminal end and the second channel terminal end are separate from one another; and
wherein the first channel and the second channel extend parallelly along the length of the at least one acoustic scatterer.