Acoustic Panel Sections with Polyester Shells for Sound Control

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Solution Overview

Problem

Conventional acoustic panels are limited in their ability to effectively control sound energy in various spaces, as they either absorb or diffuse sound but lack the capability to generate sound and create aesthetically pleasing designs that also function acoustically.

Innovation Solution

An acoustic system comprising multiple sections with sound absorptive, diffusive, and generating capabilities, each with a polyester shell that defines a pattern on the interior surface, utilizing non-woven polyester fibers and varying airflow resistance values to control sound waves, and incorporating aesthetic features like geometric patterns and embossing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional acoustic panels are used to absorb or diffuse sound, then sound control is improved, but the ability to generate sound and create aesthetically pleasing designs is limited

Engineering Contradiction:
Improvesound controlVSAvoidsound generation and aesthetic design capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The acoustic panel is designed to perform multiple functions: it absorbs sound through porous material, generates sound via integrated speakers, and provides aesthetic design through patterned polyester shells. This multi-functional approach resolves the contradiction by making a single device capable of both sound control and sound generation while maintaining aesthetic appeal.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines sound absorption material, speaker components, and decorative shell into a single integrated acoustic panel assembly. This merging of previously separate functions (sound absorption, sound generation, and aesthetics) into one unified device enables the panel to simultaneously achieve reliable sound control while adding sound generation and aesthetic versatility.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If polyester shells with varying airflow resistance are used to control sound waves, then acoustic performance is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveacoustic performanceVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent achieves different acoustic performances by varying the airflow resistance parameter of the polyester shell, creating different sections (absorptive, diffusive, transparent) with specific resistance values. This parameter-based differentiation allows for tailored acoustic performance while using the same basic material and manufacturing process, thus managing complexity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

Different sections of the acoustic panel system have polyester shells with locally optimized airflow resistance values tailored to their specific acoustic function. This local quality approach allows each section to be optimized for its purpose while maintaining overall system manufacturability through standardized components.

Inventive Principle:
Principle #3Local quality

3Shape

If multiple sections with different acoustic properties are combined to define patterns, then aesthetic appeal is improved, but device complexity increases

Engineering Contradiction:
Improveaesthetic patternVSAvoidsystem complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The acoustic system is divided into multiple modular sections, each with a polyester shell designed to define specific portions of an overall pattern. These segmented sections can be independently manufactured and then assembled to create complex aesthetic patterns, managing device complexity through modularity while achieving the desired visual appeal.

Inventive Principle:
Principle #1Segmentation

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 system effectively absorbs and diffuses sound waves while allowing sound generation, enhancing sound control and aesthetics, thereby improving acoustic performance and visual appeal in rooms.

Implementation Method 1

a first section including a sound absorptive substrate, and a first polyester shell positioned over the sound absorptive substrate. The first polyester shell is configured to be mounted on an interior surface of a building such that at least some sound waves pass through the first polyester shell

Methodology Applied
Scientific EffectSound absorption: Acoustic Absorption

Implementation Method 2

The second section is configured to reflect sound waves

Methodology Applied
Scientific EffectSound reflection: Reflection

Implementation Method 3

each polyester shell may comprise non-woven polyester fibers. The first polyester shell is configured to be mounted on an interior surface of a building such that at least some sound waves pass through the first polyester shell

Methodology Applied
Scientific EffectAcoustic transmission through porous material: Porosity

Data Source

PatentUS11830468B2Acoustic system and method
Publication Date: 2023.11.28 AURALEX ACOUSTICS INC
  • US11830468B2 patent drawing
  • US11830468B2 patent drawing
  • US11830468B2 patent drawing

AI summary

An acoustic system is disclosed. The acoustic system includes a number of acoustic panel sections having a variety of acoustic properties. Each acoustic panel section is configured to be mounted on an interior surface of a building and cooperates with the other acoustic panel sections to define a pattern on the interior surface of the building.