Modular Sound Damping Assembly with Interlocking Profiles
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Solution Overview
Problem
Modular wooden construction elements exhibit poor acoustic performance, and existing combinations with felt materials are cumbersome, lack modularity, and result in non-planar surfaces, limiting their use as effective sound damping assemblies.
Innovation Solution
A sound damping assembly comprising wood profiles and acoustic profiles assembled alternatively with interlocking means, forming a releasable and modular structure that enhances acoustic properties and mechanical strength, with a planar rear surface for secure assembly and invisible fixation when mounted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wooden profiles are used for modular construction elements, then ease of manufacture and modularity are improved, but acoustic performance deteriorates
Solution Approach 1:
The patent combines wooden profiles with acoustic profiles containing sound-absorbing materials (felt, foam, or mineral wool) to create a composite modular construction element. The wooden profile provides structural support and modularity, while the acoustic profile with sound-absorbing material improves acoustic performance, achieving a weighted sound absorption coefficient of at least 0.6 according to ISO 354.
Solution Approach 2:
The acoustic profile is nested within or integrated with the wooden profile structure. The interlocking means allow the acoustic profile to be inserted into or combined with the wooden profile, creating a nested configuration where the sound-absorbing material is housed within the modular framework.
2Object-affected harmful factors
If felt material is combined with wooden elements by nailing or gluing, then acoustic properties are improved, but device complexity and ease of manufacture deteriorate
Solution Approach 1:
The construction element is segmented into separate wooden profile and acoustic profile components, each with standardized interlocking means. This segmentation allows for easy assembly and disassembly without requiring nailing or gluing, as the profiles can be connected through mechanical interlocking mechanisms such as tongue-and-groove joints or snap-fit connections.
Solution Approach 2:
The connection between wooden and acoustic profiles is made dynamic and reversible through interlocking means that allow for easy assembly and disassembly. This eliminates the need for permanent fixation methods like nailing or gluing, enabling flexible reconfiguration and simplifying the assembly process.
3Object-affected harmful factors
If wooden elements are placed in front of the felt surface, then acoustic properties are improved, but the surface planarity deteriorates
Solution Approach 1:
The wooden profile and acoustic profile are merged into a single integrated modular element where the acoustic profile is positioned within the same plane as the wooden profile. The interlocking means ensure that both profiles align flush, creating a planar front surface while maintaining the sound-absorbing properties of the acoustic material.
4Object-affected harmful factors
If felt material is used in modular construction, then acoustic properties are improved, but modularity and design flexibility deteriorate
Solution Approach 1:
The construction system is segmented into standardized wooden profiles and acoustic profiles that can be independently manufactured and then assembled in various configurations. This segmentation maintains modularity while incorporating sound-absorbing materials, as the acoustic profiles can be easily added, removed, or repositioned without affecting the overall modular structure.
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 assembly demonstrates improved acoustic performance, achieving a weighted sound absorption coefficient of up to 0.8 according to ISO 354, ranking class B or C, while maintaining modularity and aesthetic appeal by ensuring a planar surface and secure assembly.
Implementation Method 1
Each acoustic profile (20) comprises an acoustic material (200)... demonstrating good acoustic properties... achieving a weighted sound absorption coefficient of up to 0.8 according to ISO 354
Data Source
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AI summary
A sound damping assembly (1) comprising a visible front surface (2) and an opposite rear surface (3) and further comprising: - a first profile (10) comprising a first front surface (101) and an opposite first rear surface (102); - an acoustic profile (20) comprising an acoustic material (200), wherein said acoustic profile (20) comprises an acoustic front surface (201) and an opposite acoustic rear surface (202); and wherein: - said first profile (10) and said acoustic profile (20) further comprise a pair of interlocking means (30) configured to assemble said first profile (10) and said acoustic profile (20) together in a releasable manner, thereby forming said sound damping assembly (1); and - said opposite rear surface (3) formed by said opposite first rear surface (102) and said opposite acoustic rear surface (202) when said first profile (10) and said acoustic profile (20) are assembled is planar.