Conductive Paper Layer Rear-Side Contacting
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Solution Overview
Problem
Existing composite bodies with electrically conductive paper layers face challenges in safe and variable electrical contacting, particularly for heating surfaces of different sizes and moving parts, due to the need for precise recesses in the carrier plate, which complicates manufacturing and can impair stability and cause optical defects.
Innovation Solution
The electrically conductive paper layer is arranged such that conductive tracks are partially or completely on the rear side and/or outer edge of the substrate, allowing for easy and secure contacting without modifying the substrate, eliminating the need for recesses and additional elements, and maintaining stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If recesses are formed in the carrier plate to insert conductive elements, then electrical contacting of the conductive paper layer is enabled, but manufacturing complexity increases and stability is impaired
Solution Approach 1:
The conductive elements are extracted from the carrier plate structure and placed on the rear side, eliminating the need for recesses in the carrier plate. This allows the front side to remain intact and stable while still enabling electrical contacting through the conductive paper layer.
Solution Approach 2:
The contacting structure is moved from the front side (2D surface) to the rear side (another dimension), allowing conductive elements to contact the conductive paper layer from behind without interfering with the front side integrity or requiring carrier plate modifications.
2Reliability
If recesses are formed in the carrier plate, then conductive elements can be inserted for contacting, but optical defects occur after pressing
Solution Approach 1:
The contacting function is extracted from the front side structure and relocated to the rear side, eliminating the visual impact of recesses and conductive elements on the front surface appearance.
Solution Approach 2:
Instead of contacting from the front side through recesses, the contacting is performed from the rear side, inverting the traditional approach and eliminating optical defects on the visible front surface.
3Reliability
If recesses are provided in the carrier plate, then electrical contacting is achieved, but structural stability is impaired
Solution Approach 1:
The conductive elements are taken out from the carrier plate body and positioned on the rear side, removing the structural disruption caused by recesses while maintaining the carrier plate's integrity and stability.
Solution Approach 2:
The contacting function is segmented from the carrier plate structure itself and implemented as separate elements on the rear side, allowing the carrier plate to maintain its structural integrity while still enabling electrical contacting.
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 solution simplifies the manufacturing process, enhances stability, and allows for flexible assembly of heating surfaces of various sizes while preventing optical defects, enabling efficient and reliable electrical contacting of the conductive paper layer.
Implementation Method 1
By applying suitable conductive tracks, the current can be coupled into a paper layer and distributed through the conductive particles over the surface between these conductive tracks
Implementation Method 2
Electrically conductive paper is suitable for heating decorative laminate panels, for example, because it can be introduced into laminate panels and heated with electricity
Data Source
AI summary
A composite body including a substrate with a front side, a rear side and an outer edge, and an electrically conductive paper layer, wherein the electrically conductive paper layer is at least partially arranged on the front side of the substrate and at least partially encompasses at least two conductive tracks. The at least two conductive tracks are at least partially arranged on the rear side and/or the outer edge of the substrate. Further described is a use of the composite body and a method for producing a composite body. Further described is a contacting device for electrically contacting an electrically conductive paper layer of a composite body.