发明申请
- 专利标题: STRUCTURE HAVING SOUND ABSORPTION CHARACTERISTIC
- 专利标题(中): 具有吸声特性的结构
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申请号: US13810031申请日: 2011-05-24
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公开(公告)号: US20130118831A1公开(公告)日: 2013-05-16
- 发明人: Junichi Kawai , Satoshi Mihara , Chie Kato
- 申请人: Junichi Kawai , Satoshi Mihara , Chie Kato
- 申请人地址: JP Toyota-shi, Aichi-ken
- 专利权人: AISIN KAKO KABUSHIKI KAISHA
- 当前专利权人: AISIN KAKO KABUSHIKI KAISHA
- 当前专利权人地址: JP Toyota-shi, Aichi-ken
- 优先权: JP2010-160368 20100715
- 国际申请: PCT/JP2011/061881 WO 20110524
- 主分类号: E04B1/84
- IPC分类号: E04B1/84
摘要:
To absorb a noise produced by an external force that generates an audio frequency even if it is applied thereto, and to make it hard to become a noise source to a surrounding area.It includes a surface layer 20 having microscopic pores 21 formed on a surface 20A, communicating passages 24 communicating with the microscopic pores 21 and a porous layer 10 having sound pores 14 that are formed at an inner part deeper than the surface layer 20 having the microscopic pores 21 formed, communicate with the communicating passage 24 and that have a volume larger than volumes of the microscopic pore 21 formed on the surface 20A and the communicating passage 24. A sound absorption characteristic and/or a sound insulation characteristic is provided by the microscopic pores 21 of the surface 20A, the communicating passages 24 of the porous layer 10, and the sound pores 14 of the porous layer 10. Accordingly, sound absorption control including sound insulation in a predetermined audio frequency band can be achieved and a high sound absorption characteristic can be provided.
公开/授权文献
- US08789651B2 Structure having sound absorption characteristic 公开/授权日:2014-07-29