Vehicle Heating Element Curved Surface Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional heating elements for vehicle interior materials struggle to maintain uniform temperature distribution when applied to three-dimensional curved surfaces, leading to discomfort and product failure due to deformation and non-uniform heating.
Innovation Solution
A method of manufacturing heating elements by forming a base part and electrode part with the same curvature as the surface of the subject using molds and soft pads, followed by printing and drying conductive and heating inks, and attaching a coverlay to ensure the heating element is pressed against the surface without deformation, allowing for uniform temperature distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the heating element is formed with uniform thickness for flat surfaces, then manufacturing is simple, but temperature distribution becomes non-uniform when applied to three-dimensional curved surfaces
Solution Approach 1:
The base part is designed with variable thickness to match the specific curvature of the target surface. The thickness distribution is optimized locally - thicker in highly curved areas and thinner in flatter areas - ensuring uniform contact and temperature distribution across the entire heated surface while maintaining manufacturing feasibility through molded construction.
Solution Approach 2:
The base part is formed with a curved surface that matches the three-dimensional curvature of the vehicle interior panel. This curvature adaptation allows the heating element to conform perfectly to complex surfaces, ensuring uniform contact and eliminating the temperature non-uniformity that occurs with flat, uniform-thickness heating elements.
2Area of stationary object
If the heating element is stretched to fit curved surfaces, then coverage is improved, but deformation and wrinkling occur causing product failure
Solution Approach 1:
The base part is pre-formed with the exact curvature of the target surface using a mold during manufacturing. This preliminary shaping ensures that when the heating element is installed, it naturally conforms to the curved surface without requiring stretching or deformation, thereby preventing wrinkles and maintaining product reliability while achieving complete surface coverage.
3Length of stationary object
If the heating element is made thinner to reduce profile, then aesthetics are improved, but contact with curved surfaces becomes poor leading to lifting and wrinkles
Solution Approach 1:
The base part employs variable thickness design - thinner in regions with low curvature to maintain aesthetics and closer to the panel surface, and thicker in regions with high curvature to ensure adequate contact and prevent lifting. This local optimization allows the heating element to be both aesthetically pleasing and reliably contact the curved surface throughout.
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 method ensures the heating element is applied uniformly to complex curved surfaces, maintaining consistent temperature and improving product quality by preventing deformation and wrinkling.
Implementation Method 1
a heating part 103 stacked on the upper surface of the base part 101 for electrical connection to the electrode part 102
Data Source
AI summary
Disclosed herein is a method of manufacturing heating elements for vehicle interior materials, which includes forming a base part having the same shape as a curved surface of a subject, forming an electrode part on an upper surface of the base part, and stacking a heating part on upper surfaces of the base part and electrode part. Accordingly, the heating element is manufactured in advance to have the same shape as the curved surface of the subject and then adhered to the subject so that the heating element is overlapped on and pressed against the subject without deformation. Thus, it is possible to make overall temperature distribution uniform and improve product quality.