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Noise absorption and insulation composite board

A composite board, sound-absorbing and insulating technology, applied in the direction of sound-proofing, sound-generating equipment, sound-proof doors/windows, etc., can solve problems such as not being able to meet installation and application requirements, and achieve significant application value, excellent consumption capacity, and simple structure.

Inactive Publication Date: 2014-08-06
SHANGHAI QUIET NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, in order to improve the sound insulation performance of this kind of sound absorption and insulation structure, the weight and thic

Method used

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  • Noise absorption and insulation composite board
  • Noise absorption and insulation composite board
  • Noise absorption and insulation composite board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown: a sound-absorbing and insulating composite panel provided in this embodiment is composed of a sound-absorbing layer 1 and a constrained damping structure layer 2, and the sound-absorbing layer 1 is composed of a fibrous sound-absorbing material 11 and a perforated plate 12 , the constrained damping structure layer 2 is composed of a constrained layer 21, two panel layers 23 arranged above and below the constrained layer 21, and a damping layer 22 arranged between the constrained layer 21 and the two panel layers 23. The composite board described in the present invention is fixed between the sound-absorbing layer 1 and the constrained damping structure layer 2 by setting keel 3 and wrapping 4 .

[0026] The fibrous sound-absorbing material 11 can be selected from inorganic non-metallic fibers (such as glass fibers, rock wool fibers, etc.) or / and chemical synthetic fibers (such as polyester fibers). In order to prevent fiber shedding, the sound...

Embodiment 2

[0032] Such as figure 2 As shown: the difference between the sound-absorbing and insulating composite panel provided in this embodiment and that of Example 1 is that the sound-absorbing layer 1 is formed of a hard sound-absorbing board, and the hard sound-absorbing board is selected from Any one of metal foam board (for example: aluminum foam board), metal fiber board (for example: aluminum fiber board), chemical synthetic fiber board (for example: polyester fiber board). The sound-absorbing layer 1 and the constrained damping structure layer 2 are fixed into a composite board by setting connectors (not shown in the figure) or glue.

[0033] The connecting parts may be bolts, screws, etc.; the glue may be commonly used bonding glue, such as liquid nails, or damping and sound-insulating glue.

Embodiment 3

[0035] Such as image 3 As shown: the difference between the sound-absorbing and insulating composite panel provided in this embodiment and Embodiment 1 and Embodiment 2 is that the constrained damping structure layer 2 is only composed of a constrained layer 21 and is arranged under the constrained layer 21 The panel layer 23 and the damping layer 22 arranged between the constraining layer 21 and the panel layer 23 are composed.

[0036] In a word, the present invention introduces the sound-absorbing layer and the constrained damping structure layer at the same time, so that the composite panel provided by the present invention has the beneficial effects of simpler structure, lighter and thinner structure, and lighter installation and use under the same sound-absorbing and insulating performance. Therefore, the sound-absorbing and insulating composite board provided by the present invention can meet the application requirements of sound-insulating and noise-reducing products,...

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Abstract

The invention discloses a noise absorption and insulation composite board. The noise absorption and insulation composite board is formed by stacking a noise absorption layer and a constrained damping structure layer. The constrained damping structure layer is composed of a constrained layer, a panel layer/panel layers arranged on the constrained layer or/and under the constrained layer and a damping layer arranged between the constrained layer and the panel layer. By introducing the noise absorption layer and the constrained damping structure layer at the same time, the noise absorption and insulation composite board has the advantages of being simpler in structure, lighter, thinner, more convenient to install and use and the like under the condition of the same noise absorption and insulation performance. Thus, the noise absorption and insulation composite board can meet the application requirements of noise insulation and reduction products and has obvious application value.

Description

technical field [0001] The invention relates to a sound-absorbing and insulating composite board, which belongs to the technical field of sound insulation and noise reduction. Background technique [0002] In the field of acoustics such as sound insulation and noise reduction, architectural sound effects, etc., sound-absorbing and insulating components with sound-absorbing properties and a certain sound-insulating level are widely used, such as: sound-absorbing door panels, sound-absorbing barriers, sound-insulating covers / sound-insulating The sound-absorbing and insulating panels in the room, the sound-absorbing and insulating partition walls in the building, etc. [0003] The structure of this type of sound-absorbing and insulating component is mainly composed of a back plate and a sound-absorbing layer. The sound-absorbing layer is composed of a perforated plate and sound-absorbing cotton. The sound-absorbing cotton is placed in the cavity formed between the perforated pl...

Claims

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Application Information

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IPC IPC(8): G10K11/16E04B1/86E01F8/00E06B5/20
Inventor 汪承磊徐结良肖平胡柏林李源林
Owner SHANGHAI QUIET NEW MATERIAL TECH
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