Sound Absorption Sheet With Patterned Micro-Resonance Layer
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Solution Overview
Problem
Current sound absorption sheets face challenges in achieving both effective sound absorption and decorative performance, as they often compromise on soundproofing or fireproofing due to surface decorative materials.
Innovation Solution
A sound absorption sheet comprising a porous substrate with a micro-resonance layer featuring patterned sound absorption holes, formed by rotary screen printing, which provides both sound absorption and decorative capabilities while maintaining air permeability and flame resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a surface decorative material is formed on the sound absorption material, then decorative performance is improved, but soundproofing and fireproofing performance deteriorate
Solution Approach 1:
The patent merges the decorative function and sound absorption function into a single integrated structure. The embossed pattern on the sound absorption sheet serves dual purposes: providing decorative appearance while simultaneously maintaining sound absorption capability through the patterned sound absorption holes that penetrate both surfaces.
Solution Approach 2:
The sound absorption sheet is designed to perform multiple functions simultaneously: sound absorption, decorative purposes, and maintenance of air permeability and fire resistance. The embossed pattern with patterned sound absorption holes enables the sheet to serve as both a functional sound absorption material and an aesthetic decorative element.
2Reliability
If a number of perforations are added to block noise, then sound absorption capability is improved, but air permeability deteriorates
Solution Approach 1:
The patent applies local quality by creating patterned sound absorption holes with specific geometric arrangements rather than uniform random perforations. The embossed pattern concentrates the sound absorption function in specific localized areas while maintaining better air permeability in other regions, optimizing the balance between sound absorption and air flow.
Solution Approach 2:
The patent optimizes parameters such as hole size (0.1mm to 20mm), hole density (1% to 60% per unit area), and pitch (0.5mm to 50mm) to achieve the desired balance. By carefully controlling these parameters, the sheet maintains sufficient sound absorption capability while preserving adequate air permeability for ventilation and comfort.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables sound absorption sheets with various designs and three-dimensional patterns, enhancing both sound absorption and aesthetic appeal, thereby improving interior decoration and maintaining soundproofing performance.
Implementation Method 1
a sound absorption sheet having sound absorption capability so as to absorb a variety of interior noise
Implementation Method 2
the sound absorption sheet requires permeability and sound absorption capability in order to minimize noise
Data Source
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AI summary
Provided is a sound absorption sheet comprising: a porous substrate; and a micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof. Also provided is a sound absorbing soundproofing panel, the exterior surface of which is covered with the sound absorption sheet comprising: the porous substrate; and the micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof.