公开(公告)号：US10510331B2

公开(公告)日：2019-12-17

申请号：US15590560

申请日：2017-05-09

Applicant: S.I.PAN ,  KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Gab Cheol Jeong ,  Eon Mo Ahn ,  Jong Young Park ,  Sung Soo Jung

IPC: G10K11/168 ,  B32B3/26 ,  E04C2/284 ,  E04B1/82 ,  E04B1/86

Abstract: This technology provides a sound absorbing structure comprising: an outer frame including an opening; a perforated plate member formed in the outer frame and including a rear surface facing the opening of the outer frame and a front surface opposite to the rear surface; and a rear sound absorber interposed between the rear surface of the perforated plate member and the opening of the outer frame, and an anechoic chamber comprising: a wall, a ceiling and a floor; and a plurality of sound absorbing structures of the embodiment fixed to at least the wall and the ceiling.

公开(公告)号：US10508828B2

公开(公告)日：2019-12-17

申请号：US15590496

申请日：2017-05-09

Applicant: S.I.PAN ,  KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Gab Cheol Jeong ,  Eon Mo Ahn ,  Jong Young Park ,  Sung Soo Jung

IPC: F24F13/24 ,  F16L55/033 ,  F24F13/02

Abstract: This technology provides a splitter comprising: a first sound absorber; a second sound absorber; a perforated plate member interposed between the first sound absorber and the second sound absorber; and an outer frame surrounding the first sound absorber, the second sound absorber and the perforated plate member; and a sound attenuator comprising: a protective case; a plurality of splitters according to above embodiment formed in the protective case and spaced from each other; and an air passage formed among the plurality of splitters.