Multi-layer Acoustic Ceiling Panels with Attenuation Coatings
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Solution Overview
Problem
Existing acoustic building panels fail to achieve enhanced noise reduction and sound attenuation, often limiting maximum sound blocking performance.
Innovation Solution
The development of an acoustic ceiling panel comprising air-permeable bodies with attenuation coatings applied to both surfaces and sides, combined with an adhesive to enhance sound absorption and reduction, forming a layered structure within a ceiling grid system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-layer acoustic panels are used, then the structure is simple and easy to manufacture, but the noise reduction and sound attenuation performance is insufficient
Solution Approach 1:
The acoustic panel is divided into multiple functional layers including air-permeable bodies with attenuation coatings on both surfaces and sides, adhesive layers between layers, and porous materials. Each layer performs a specific acoustic function, allowing the complex performance requirements to be met through modular layer design while maintaining manufacturing feasibility
Solution Approach 2:
The panel uses composite construction combining air-permeable materials with attenuation coatings, porous materials, and adhesive layers. This composite structure achieves superior noise reduction and sound attenuation properties by integrating the complementary characteristics of different materials in a multi-layer configuration
2Reliability
If maximum sound attenuation is pursued, then noise blocking performance improves, but the panel design becomes limited and难以 achieve enhanced acoustical properties
Solution Approach 1:
Different regions of the panel have specialized treatments: attenuation coatings are applied to specific surfaces and sides of air-permeable bodies, porous materials are positioned in specific layers, and adhesive layers are placed between specific components. This localized optimization allows enhanced acoustical properties to be achieved in targeted areas while maintaining overall panel versatility
Solution Approach 2:
The patent transitions from conventional single-layer or simple multi-layer designs to a three-dimensional layered structure with coatings applied to multiple surfaces (top, bottom, and sides) of air-permeable bodies. This dimensional approach to layer configuration enables enhanced sound attenuation and noise blocking performance that overcomes previous design limitations
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 significantly improves noise reduction and sound attenuation, achieving higher Noise Reduction Coefficient (NRC) ratings and increased sound absorption, effectively reducing noise reflection and enhancing acoustic performance.
Implementation Method 1
a first attenuation coating applied to the first body; a second attenuation coating applied to the second body
Implementation Method 2
the first body being air-permeable; the second body being air-permeable
Data Source
AI summary
The present invention is directed to an acoustic ceiling panel having a first major exposed surface opposite a second major exposed surface, the acoustic ceiling panel comprising: a first layer having an upper surface opposite a lower surface, the first layer comprising: a first body comprising a first major surface opposite a second major surface and a side surface extending between the first and second major surfaces, the first body being air-permeable; and a first attenuation coating applied to the first body; a second layer having an upper surface opposite a lower surface, the second layer comprising: a second body comprising a first major surface opposite a second major surface and a side surface extending between the first and second major surfaces, the second body being air-permeable; and a second attenuation coating applied to the second body; and an adhesive present between the first and second layers.