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Title:
SOUND ABSORBING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/060188
Kind Code:
A1
Abstract:
A sound absorbing device according to an embodiment of the present invention comprises a plurality of sound absorbing cells arranged adjacent to each other on a plane, wherein each of the plurality of sound absorbing cells comprises: a chamber having an inner space and a plurality of micro-holes perforated through the front surface thereof to which sound waves are incident; and a neck portion recessed backward from the front surface and extending toward the inner space, and having a communication hole formed therethrough to allow the inner space to communicate with the outside.

Inventors:
JEON WONJU (KR)
RYOO HYEONBIN (KR)
Application Number:
PCT/KR2021/012882
Publication Date:
March 24, 2022
Filing Date:
September 17, 2021
Export Citation:
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Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
G10K11/172
Foreign References:
KR20190109893A2019-09-27
KR101112444B12012-02-22
JP2011221283A2011-11-04
KR20050110977A2005-11-24
JP2005338795A2005-12-08
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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