Uncoupling mat with heating elements
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Solution Overview
Problem
Existing uncoupling mats face challenges in enhancing uncoupling capability and clamping of the lower side, often resulting in air inclusions and uncontrolled cavities due to incomplete air escape during mortar filling, and they struggle to effectively manage stresses from substrate expansion and thermal changes.
Innovation Solution
The uncoupling mat features a flexible plastic layer with structuring that includes indentations with undercuts on one side and cavities on the other, along with additional weakening zones that allow transverse movement, and a fleece or fabric with through holes to prevent clogging, enabling improved stress absorption and air escape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the uncoupling mat uses a densely structured plastic layer to enhance uncoupling capability, then stress absorption is improved, but air escape is blocked causing air inclusions and uncontrolled cavities
Solution Approach 1:
The plastic layer is designed with a porous structure containing numerous cavities that allow air to escape during mortar filling while maintaining the uncoupling function. The porous structure enables controlled air permeability without compromising the stress absorption capability of the plastic layer.
Solution Approach 2:
The plastic layer is segmented into multiple regions with different cavity densities and configurations. This segmentation allows different areas to serve different functions: some regions provide enhanced uncoupling capability while others facilitate air escape, resolving the contradiction between stress absorption and air permeability.
2Stability of the object's composition
If the uncoupling mat uses a rigid plastic layer to prevent crack transmission, then structural stability is improved, but flexibility to accommodate substrate movement is reduced
Solution Approach 1:
The patent uses a thin film-like plastic layer that maintains sufficient rigidity to prevent crack transmission while being flexible enough to accommodate substrate movement. The film structure provides the necessary balance between stability and adaptability, allowing the uncoupling mat to function effectively under varying stress conditions.
Solution Approach 2:
The plastic layer incorporates dynamic elements such as cavities and weakening zones that allow the structure to deform and adapt to substrate movements. These dynamic features enable the plastic layer to maintain crack prevention capability while accommodating thermal expansion and other substrate movements.
3Strength
If the uncoupling mat uses a thick plastic layer to improve durability, then strength is enhanced, but air escape during mortar filling is hindered
Solution Approach 1:
The plastic layer incorporates a porous structure with controlled cavity sizes and distributions that facilitate air escape during mortar filling. This porous design maintains durability through the plastic material properties and structural integrity while enabling adequate air permeability to prevent air inclusions.
Solution Approach 2:
The plastic layer exhibits local quality variations with different cavity densities and configurations in different regions. This allows certain areas to provide enhanced strength and durability while other areas facilitate air escape, resolving the contradiction between structural integrity and air permeability.
Data Source
AI summary
An uncoupling mat includes a flexible layer made of a film-like plastic with structuring that defines indentations provided with undercuts on a first, top side and a series of annular cavities formed on an opposite second, bottom side. The annular cavities on the bottom side each define a recess on the first side. The indentations have a cross-section adapted to receive a heating cable therein such that the cable can be held in position by the indentations. A plurality of weakening zones each extends between two rows of annular cavities in a straight line to allow the plastic layer to move substantially transversely to the direction of extension of the weakening zones.