Sheet Finishing Element With Granule-Filled Wavy Core
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Solution Overview
Problem
Existing sound-insulating and construction elements for uneven floors and damaged walls lack optimal moisture protection, heat insulation, and flame retardancy while effectively addressing structure-borne noise transmission.
Innovation Solution
A flat, panel-shaped construction element with a wavy or honeycomb interior support structure filled with granules, bonded to thin cover and separating layers made of tough cellulose polymer with mineral wool and a moisture-resistant adhesive, featuring air-filled cavities for thermal insulation and sound absorption, and a moisture-resistant, vapor-permeable protective layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If chipboard is used to cover uneven floors or damaged walls, then a level surface is achieved, but structure-borne noise transmission increases
Solution Approach 1:
The patent embeds a hollow core structure with wavy or honeycomb support elements between cover layers, creating nested layers that trap air pockets. This nested structure interrupts sound transmission paths while maintaining a flat external surface, resolving the contradiction between achieving level surfaces and reducing structure-borne noise.
Solution Approach 2:
The patent uses air-filled cavities within the hollow core structure as porous elements that absorb and dampen sound vibrations. The air pockets between wavy support structures create acoustic damping that reduces structure-borne noise transmission while preserving the flat surface geometry.
2Object-generated harmful factors
If conventional sound insulation elements are used, then noise transmission is reduced, but moisture protection is insufficient
Solution Approach 1:
The patent combines multiple materials with complementary properties: water-repellent cover layers provide moisture protection, while the hollow core with air pockets provides sound insulation. The composite structure integrates moisture barrier functionality with acoustic damping, resolving the contradiction between noise reduction and moisture protection.
Solution Approach 2:
The patent employs thin, water-repellent cover layers that form a protective barrier against moisture while enclosing the sound-insulating hollow core. These thin film structures provide effective moisture protection without compromising the acoustic performance of the internal air-filled cavities.
3Strength
If massively compacted plate structures are used, then structural strength is increased, but heat insulation properties deteriorate
Solution Approach 1:
The patent divides the core structure into segmented wavy or honeycomb support elements that create multiple air-filled cavities. This segmentation maintains structural strength through the geometric rigidity of the support elements while the air pockets provide thermal insulation, resolving the contradiction between strength and heat insulation.
Solution Approach 2:
The patent transitions from a solid two-dimensional plate structure to a three-dimensional hollow core structure with wavy support elements. This dimensional change introduces air-filled voids that provide thermal insulation while the three-dimensional geometry of the support elements maintains structural strength.
4Quantity of substance
If thin cover layers are used, then material usage is reduced, but moisture protection becomes insufficient
Solution Approach 1:
The patent changes the functional parameters of the cover layers by applying water-repellent treatments or using inherently water-resistant materials. This parameter change allows thin cover layers to provide effective moisture protection without increasing material quantity, resolving the contradiction between material reduction and moisture protection.
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 provides effective sound insulation, moisture protection, heat insulation, and flame retardancy, enhancing mechanical resilience and preventing structure-borne noise transmission while allowing for easy installation and sealing.
Implementation Method 1
Air-filled cavities between the granules of the channel filling give the expansion element according to the invention thermal insulation properties
Implementation Method 2
the relatively high mass of the filling has sound-absorbing, i.e. sound-insulating properties, which means that it very effectively counteracts structure-borne noise conduction along the adjacent cover layers as well as transmission of noise through it
Implementation Method 3
at least one of the cover - or separating layers with a moisture-resistant but vapor-permeable protective layer
Data Source
AI summary
A panel-like/sheet-like finishing element (11) for covering floors and walls, for example in the renovation of old buildings, is provided with heat-insulating and sound-absorbing properties if its interior (15) is provided, between outer covering layers (12, 13), with channel-forming undulating supporting structures (16) filled with high-density coarse granules (21). The supporting structures (16) are connected to the covering layers (12, 13) along the vertex lines (17) so as to provide wet-strength action, and the interior (15), between these covering layers, is sealed by enclosing edging strips (19) to provide wet-strength action, with the simultaneous inclusion of moisture-tight, but vapour-permeable, supporting layers (20) on covering layers (12, 13). If this finishing element (11) is mounted vertically, the granule-filled channels (14) run horizontally.