Sound absorbing structure having one or more acoustic scatterers attached to a transparent panel
AssigneesToyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
InventorsXiaoshi Su, Debasish Banerjee, Tomohiro Miwa, Yasushi Hirata, Reimi Emoto
Life of this patent
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Abstract
A sound absorbing structure includes a panel having a first side and a second side and at least one acoustic scatterer coupled to a first side of the panel. The panel may be at least partially transparent. The at least one acoustic scatterer has an opening and at least one channel. The at least one channel has a channel open end and a channel terminal end with the channel open end being in fluid communication with the opening. The panel may be utilized to separate an interior space from an exterior space.
Claims18
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.
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.
Dependencies are inferred from the claim text.