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A platform for research: civil engineering, architecture and urbanism
Combined frequency band type sound absorption composite structure
The invention discloses a combined frequency band type sound absorption composite structure. The combined frequency band type sound absorption composite structure is composed of a left side plate, a right side plate, a middle vertical plate, a first volute plate, a second volute plate, a bottom plate, a first low-frequency sound absorption material block, a second low-frequency sound absorption material block, a medium-high frequency sound absorption plate, a first sealing plate, a second sealing plate, a first low-frequency sound diffraction trap and a second low-frequency sound diffraction trap. The structure is provided with two sound absorption surfaces with different sound absorption dominant frequency bands, the two sound absorption surfaces are used for absorbing low-frequency soundwaves and medium-high frequency sound waves respectively, and a full-frequency-band sound absorption effect is obtained after combination. Compared with a traditional space sound absorber, the soundabsorption composite structure has a lower sound absorption frequency lower limit and a thinner overall size, and the installation space is saved.
本发明公开了一种组合频带式吸声复合结构，由左侧板、右侧板、中立板、第一蜗壳板、第二蜗壳板、底板、第一低频吸声材料块、第二低频吸声材料块、中高频吸声板、第一封板、第二封板、第一低频声衍射陷阱、第二低频声衍射陷阱组成。所述结构拥有两个吸声优势频带不同的吸声面，分别用于吸收低频声波和中高频声波，组合后获得全频带吸声效果。该吸声复合结构相对于传统的空间吸声体具有更低的吸声频率下限、更薄的整体尺寸，节省安装空间。
Combined frequency band type sound absorption composite structure
The invention discloses a combined frequency band type sound absorption composite structure. The combined frequency band type sound absorption composite structure is composed of a left side plate, a right side plate, a middle vertical plate, a first volute plate, a second volute plate, a bottom plate, a first low-frequency sound absorption material block, a second low-frequency sound absorption material block, a medium-high frequency sound absorption plate, a first sealing plate, a second sealing plate, a first low-frequency sound diffraction trap and a second low-frequency sound diffraction trap. The structure is provided with two sound absorption surfaces with different sound absorption dominant frequency bands, the two sound absorption surfaces are used for absorbing low-frequency soundwaves and medium-high frequency sound waves respectively, and a full-frequency-band sound absorption effect is obtained after combination. Compared with a traditional space sound absorber, the soundabsorption composite structure has a lower sound absorption frequency lower limit and a thinner overall size, and the installation space is saved.
本发明公开了一种组合频带式吸声复合结构，由左侧板、右侧板、中立板、第一蜗壳板、第二蜗壳板、底板、第一低频吸声材料块、第二低频吸声材料块、中高频吸声板、第一封板、第二封板、第一低频声衍射陷阱、第二低频声衍射陷阱组成。所述结构拥有两个吸声优势频带不同的吸声面，分别用于吸收低频声波和中高频声波，组合后获得全频带吸声效果。该吸声复合结构相对于传统的空间吸声体具有更低的吸声频率下限、更薄的整体尺寸，节省安装空间。
Combined frequency band type sound absorption composite structure
一种组合频带式吸声复合结构
HU WENLIN (author) / LIU JIZHAO (author) / ZHOU TIEZHENG (author) / GU QIONGYING (author) / ZHAO SHILEI (author) / JIANG BOLONG (author) / QI CHUNYU (author) / HE BIN (author) / TAO RAN (author) / WANG SHAOLIN (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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