Acoustic Panel Offset Grooves Prevent Particle Leakage

Solution Overview

Problem

Acoustic panels face issues where the absorber is visible through recesses, and fibers or particles from the absorber can detach and pass through, especially when the absorber's color does not match the carrier board, causing aesthetic and functional problems.

Innovation Solution

The acoustic panel features offset front-face and rear-face recesses that create a through-opening, preventing visibility of the absorber from the front and capturing detached fibers or particles, with the recesses extending vertically and having specific depth and width ratios for optimal sound absorption and visual effect, and using locking profiles for secure assembly without adhesives.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a fleece is attached to the rear face to prevent particle passage, then particle leakage is prevented, but production complexity and bonding difficulties increase

Engineering Contradiction:

Improveparticle leakageVSAvoidproduction complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The recess is divided into two separate parts: a front-face recess that does not penetrate the carrier board, and a rear-face recess that also does not penetrate. These two recesses are offset relative to each other, creating a through-opening that prevents particle passage without requiring additional fleece layers, thus simplifying production while maintaining the particle containment function.

Inventive Principle:

Principle #1Segmentation

2Object-affected harmful factors

If a fleece is attached to prevent particle passage, then particle leakage is prevented, but bonding difficulties occur

Engineering Contradiction:

Improveparticle leakageVSAvoidbonding difficulty

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The recess is divided into two separate parts: a front-face recess that does not penetrate the carrier board, and a rear-face recess that also does not penetrate. These two recesses are offset relative to each other, creating a through-opening that prevents particle passage without requiring additional fleece layers, thus simplifying production while maintaining the particle containment function.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If a fleece is attached to the rear face, then particle passage is prevented, but pressure stability and suction capabilities are limited

Engineering Contradiction:

Improveparticle leakageVSAvoidpressure stability

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The recess is divided into two separate parts: a front-face recess that does not penetrate the carrier board, and a rear-face recess that also does not penetrate. These two recesses are offset relative to each other, creating a through-opening that prevents particle passage without requiring additional fleece layers, thus simplifying production while maintaining the particle containment function.

Inventive Principle:

Principle #1Segmentation

4Illumination intensity

If recesses are configured to prevent absorber visibility, then aesthetic appearance is improved, but sound absorption effectiveness may be reduced

Engineering Contradiction:

Improvevisual appearanceVSAvoidsound absorption

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

The recess is divided into two separate parts: a front-face recess that does not penetrate the carrier board, and a rear-face recess that also does not penetrate. These two recesses are offset relative to each other, creating a through-opening that prevents particle passage without requiring additional fleece layers, thus simplifying production while maintaining the particle containment function.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The solution addresses both visual and acoustic requirements by utilizing the third dimension (depth) strategically. The offset configuration of the two recesses at different depths creates the necessary visual coverage while preserving acoustic pathways, demonstrating how dimensional arrangement can simultaneously satisfy conflicting visual and acoustic performance requirements.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

This design effectively hides the absorber from view, prevents particle leakage, and enhances sound absorption while ensuring secure panel connections, improving both the visual and acoustic performance of the acoustic panels.

Implementation Method 1

sound waves which occur in a room penetrating through said recesses and passing through the carrier board into the absorber

Methodology Applied

Scientific EffectSound absorption: Acoustic Absorption

Data Source

PatentUS12077966B2Acoustic panel comprising offset grooves

Publication Date: 2024.09.03 SWISS KRONO TEC AG

AI summary

The invention relates to an acoustic panel (1) for producing a wall and ceiling lining, comprising a front face (2) and a rear face (3) and recesses (4, 6) which extend from the front face (2) and from the rear face (3) into the acoustic panel. In order to provide an acoustic panel which both prevents the ability to see through from the front face to the absorber and also prevents particles from passing from the absorber through the acoustic panel (1), according to the invention at least one front-face recess and one rear-face recess (6) are arranged so as to be partially offset from one another and comprise a through-opening (7).