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Sound absorption and sound insulation plate
The invention discloses a sound absorption and sound insulation plate comprising a sound absorption layer. The sound absorption layer comprises at least one sound absorption unit comprising a plurality of sound absorption modules. The sound absorption modules are internally provided with sound absorption cavities, and the sound absorption cavities are provided with sound absorption holes communicating with the outside. Each sound absorption cavity is internally provided with at least one partition plate. In the length direction of each partition plate, the front end of the partition plate extends spirally to the periphery. In the sound absorption modules, at least two sound absorption modules are internally provided with different numbers of partition plates. The sound absorption and soundinsulation plate greatly prolongs a sound propagation path, and the low-frequency sound absorption coefficient of the sound absorption modules is effectively improved; the sound absorption units of the sound absorption and sound insulation plate are diversified in resonance frequency and have multiple orders of high absorption peaks; and meanwhile, the resonance peaks are in a low frequency rangeand have good sound absorption performance on low frequency, so that the sound absorption effect is greatly enhanced.
本发明公开了一种吸隔声板包括吸声层；所述吸声层包括至少一个吸声单元，所述吸声单元包括多个吸声模块；所述吸声模块内具有吸声腔室，所述吸声腔室上具有与外界连通的吸声孔；所述吸声腔室内设置有至少一个隔板；沿所述隔板的长度方向，所述隔板首端向四周螺旋扩散延伸；多个所述吸声模块中，至少存在两种所述吸声模块，其内设置的所述隔板的个数不一致。本发明提供的吸隔声板，极大的提高了声传播路径，有效提高吸声模块的低频吸声系数；且该吸声隔板的吸声单元共振频率多样，具有多阶的高吸收峰值，同时共振峰在低频范围内，对低频有较好的吸声性，吸声效果大幅增强。
Sound absorption and sound insulation plate
The invention discloses a sound absorption and sound insulation plate comprising a sound absorption layer. The sound absorption layer comprises at least one sound absorption unit comprising a plurality of sound absorption modules. The sound absorption modules are internally provided with sound absorption cavities, and the sound absorption cavities are provided with sound absorption holes communicating with the outside. Each sound absorption cavity is internally provided with at least one partition plate. In the length direction of each partition plate, the front end of the partition plate extends spirally to the periphery. In the sound absorption modules, at least two sound absorption modules are internally provided with different numbers of partition plates. The sound absorption and soundinsulation plate greatly prolongs a sound propagation path, and the low-frequency sound absorption coefficient of the sound absorption modules is effectively improved; the sound absorption units of the sound absorption and sound insulation plate are diversified in resonance frequency and have multiple orders of high absorption peaks; and meanwhile, the resonance peaks are in a low frequency rangeand have good sound absorption performance on low frequency, so that the sound absorption effect is greatly enhanced.
本发明公开了一种吸隔声板包括吸声层；所述吸声层包括至少一个吸声单元，所述吸声单元包括多个吸声模块；所述吸声模块内具有吸声腔室，所述吸声腔室上具有与外界连通的吸声孔；所述吸声腔室内设置有至少一个隔板；沿所述隔板的长度方向，所述隔板首端向四周螺旋扩散延伸；多个所述吸声模块中，至少存在两种所述吸声模块，其内设置的所述隔板的个数不一致。本发明提供的吸隔声板，极大的提高了声传播路径，有效提高吸声模块的低频吸声系数；且该吸声隔板的吸声单元共振频率多样，具有多阶的高吸收峰值，同时共振峰在低频范围内，对低频有较好的吸声性，吸声效果大幅增强。
Sound absorption and sound insulation plate
一种吸隔声板
YANG ZHENYU (author) / DONG HAI (author) / JIA YU (author) / WANG YI (author)
2020-10-23
Patent
Electronic Resource
Chinese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
Environment-friendly sound insulation, shock absorption and sound absorption decorative plate
European Patent Office | 2021
| European Patent Office | 2015