Carbon Functional Layer Heating Element for Vehicle Trim
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for integrating heating elements into vehicle trim elements, such as door panels and dashboards, are complex and prone to incorrect positioning, leading to reduced quality and ineffective heating surfaces.
Innovation Solution
A trim element with a functional layer made from carbon material, featuring a pattern of conductive and nonconductive areas, allows for precise and reliable positioning of heating elements, which can be integrated into the support layer, simplifying the manufacturing process and enabling easier alignment with decorative layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a resistive circuit heating element is bonded to the support layer before the decorative layer is applied, then the heating element can be integrated into the trim element, but the manufacturing process becomes complicated and positioning accuracy is reduced
Solution Approach 1:
The heating element pattern is integrated directly into the functional layer material itself, combining the heating function with the structural layer. This eliminates the need for separate bonding operations and positioning steps, resolving the contradiction between manufacturing simplicity and positioning accuracy.
Solution Approach 2:
The heating element pattern is pre-formed within the functional layer during its manufacturing process, before the layer is applied to the support layer. This preliminary formation of the heating pattern ensures precise positioning is built-in from the start, avoiding later positioning complications.
2Adaptability or versatility
If multiple heating elements are provided on different areas of the support layer, then the heating functionality is enhanced, but the manufacturing process becomes more complicated and positioning errors increase
Solution Approach 1:
The functional layer serves multiple functions simultaneously: it provides structural support, electrical insulation, and contains the heating element patterns. This multi-functionality allows multiple heating zones to be integrated without requiring separate processing for each function, reducing overall manufacturing complexity.
Solution Approach 2:
The heating element is segmented into multiple conductive areas within the same functional layer, each capable of independent heating. This segmentation is achieved through a single integrated process rather than multiple separate bonding operations, reducing manufacturing complexity while maintaining versatility.
3Reliability
If the heating element is incorrectly positioned relative to the decorative layer, then the quality of the trim element is reduced, but the conventional bonding method does not provide sufficient positioning control
Solution Approach 1:
The functional layer itself provides the positioning reference for the heating element pattern through its inherent structure and dimensions. The heating pattern is self-aligned within the layer, eliminating the need for external positioning aids or complex alignment procedures during bonding, thus improving both reliability and precision.
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 approach simplifies the production and positioning of heating elements, ensuring accurate placement and improved functionality, while also allowing for the integration of multiple functional elements within the trim element, enhancing both manufacturing efficiency and user comfort.
Implementation Method 1
at least part of said functional layer defines at least one heating element formed by a pattern comprising at least one conductive area made from carbon material
Data Source
AI summary
A trim element includes at least one support layer having an inner face and an outer face and at least one functional layer made from a carbon material extending over at least part of the inner face or over at least part of the outer face of the support layer. At least part of the functional layer defines at least one heating element formed by a pattern that includes at least one conductive area made from carbon material and at least one nonconductive area formed by a through opening in the functional layer, the conductive area being supplied by a current source electrically connected to the conductive area.