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A platform for research: civil engineering, architecture and urbanism
Door bottom ventilation and sound insulation structure
The invention discloses a door bottom ventilation and sound insulation structure which comprises a scatterer, a ventilation and sound elimination channel and a connecting piece, the ventilation and sound elimination channel and the connecting piece are both connected with the scatterer, the scatterer is of a step-shaped symmetrical structure and is formed by connecting a plurality of Solder scatterers with different widths in sequence, the relational expression of the thickness of the scatterer is h = H-2 * n * deltah, h is the thickness, n is a natural number, and delta is a natural number. H is the thickness of the scatterer 1; n is a sequence of the Schiff scatterer, and delta h is a thickness gradient difference of the Schiff scatterer; the ventilation and sound insulation structure has full-frequency sound insulation performance. According to the invention, low-frequency sound waves and intermediate-frequency sound waves can be effectively scattered and reflected through the Srowd scatterer and the scattering regular rectangular pyramid in the structure, the sound wave energy of the two frequency bands is significantly reduced, high-frequency sound waves are efficiently absorbed through the sound absorption slits and the porous sound absorption material, the sound wave energy is further reduced, and the sound absorption efficiency is improved. The broadband sound insulation effect is achieved, and propagation and interference of sound waves are effectively reduced.
本发明公开了一种门底通风隔声结构，包括散射体、通风消声通道和连接件，通风消声通道、连接件均与散射体相连，散射体为阶梯状对称结构，且由若干个宽度不同的施罗德散射体逐次连接组成，其厚度的关系式为：h＝H‑2×n×Δh，h为厚度，H为散射体1厚度；n为施罗德散射体序列，Δh为施罗德散射体的厚度梯度差；通风隔声结构具有全频隔声性能。本发明通过结构中的施罗德散射体和散射正四棱锥体能够分别对低频和中频声波进行有效的散射和反射，显著降低了这两个频段的声波能量，吸声狭缝和多孔吸声材料则对高频声波进行高效吸收，进一步降低了声波能量，实现宽频带的隔声效果，有效减少声波的传播和干扰。
Door bottom ventilation and sound insulation structure
The invention discloses a door bottom ventilation and sound insulation structure which comprises a scatterer, a ventilation and sound elimination channel and a connecting piece, the ventilation and sound elimination channel and the connecting piece are both connected with the scatterer, the scatterer is of a step-shaped symmetrical structure and is formed by connecting a plurality of Solder scatterers with different widths in sequence, the relational expression of the thickness of the scatterer is h = H-2 * n * deltah, h is the thickness, n is a natural number, and delta is a natural number. H is the thickness of the scatterer 1; n is a sequence of the Schiff scatterer, and delta h is a thickness gradient difference of the Schiff scatterer; the ventilation and sound insulation structure has full-frequency sound insulation performance. According to the invention, low-frequency sound waves and intermediate-frequency sound waves can be effectively scattered and reflected through the Srowd scatterer and the scattering regular rectangular pyramid in the structure, the sound wave energy of the two frequency bands is significantly reduced, high-frequency sound waves are efficiently absorbed through the sound absorption slits and the porous sound absorption material, the sound wave energy is further reduced, and the sound absorption efficiency is improved. The broadband sound insulation effect is achieved, and propagation and interference of sound waves are effectively reduced.
本发明公开了一种门底通风隔声结构，包括散射体、通风消声通道和连接件，通风消声通道、连接件均与散射体相连，散射体为阶梯状对称结构，且由若干个宽度不同的施罗德散射体逐次连接组成，其厚度的关系式为：h＝H‑2×n×Δh，h为厚度，H为散射体1厚度；n为施罗德散射体序列，Δh为施罗德散射体的厚度梯度差；通风隔声结构具有全频隔声性能。本发明通过结构中的施罗德散射体和散射正四棱锥体能够分别对低频和中频声波进行有效的散射和反射，显著降低了这两个频段的声波能量，吸声狭缝和多孔吸声材料则对高频声波进行高效吸收，进一步降低了声波能量，实现宽频带的隔声效果，有效减少声波的传播和干扰。
Door bottom ventilation and sound insulation structure
一种门底通风隔声结构
XIE LONGXIANG (author) / QIAN XINGFANG (author) / WANG JIN (author) / HAN ZHIDA (author)
2024-08-13
Patent
Electronic Resource
Chinese
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
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