Sheet Heating Element with Anodic Oxide Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sheet heating elements face issues with heat resistance and flexibility, as they either peel or degrade when excessively bent or used for prolonged heating periods, and current solutions either lack flexibility or have poor heat resistance.
Innovation Solution
A method for manufacturing a sheet heating element involving anodic oxidizing a metal or alloy sheet to form a metal oxide layer on the surface, which serves as an insulating covering, while maintaining the metal or alloy core as the heating element, enhancing both heat resistance and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a sheet heating element is made with a heating element covered by silicone rubber, then heat resistance is improved, but flexibility deteriorates causing peeling when excessively bent
Solution Approach 1:
The patent changes the material parameter from silicone rubber to a metal oxide layer formed by anodic oxidizing treatment. This parameter change allows the insulating layer to maintain both heat resistance and flexibility, preventing peeling when the heating element is bent excessively while withstanding prolonged heating periods.
Solution Approach 2:
The patent creates a composite structure consisting of a metal or alloy heating element core and a metal oxide insulating layer formed by anodic oxidizing treatment. This composite material approach combines the heating properties of the metal core with the insulating and flexible properties of the metal oxide layer, resolving the contradiction between heat resistance and flexibility.
2Duration of action of moving object
If the sheet heating element undergoes prolonged heating, then heating function is maintained, but the material degrades over time
Solution Approach 1:
The patent changes the chemical composition parameter by forming a metal oxide layer through anodic oxidizing treatment. This parameter change results in a material that maintains its heating function during prolonged heating periods without degrading, improving reliability and durability.
Solution Approach 2:
The patent replaces traditional silicone rubber coatings that degrade over time with a metal oxide layer formed by anodic oxidizing treatment. This substitution eliminates the need for frequent replacement, as the metal oxide layer maintains its properties during prolonged heating without the degradation issues associated with conventional materials.
3Temperature
If a metal oxide layer is formed by anodic oxidizing treatment, then heat resistance and flexibility are improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies the self-service principle by using anodic oxidizing treatment, where the metal or alloy sheet itself serves as the electrode and the electrolyte performs the oxidation automatically. This self-service process forms the metal oxide layer without requiring additional complex equipment or multiple processing steps, thereby improving heat resistance while minimizing the increase in manufacturing complexity.
Solution Approach 2:
The patent changes the surface treatment parameter from conventional coating methods to anodic oxidizing treatment. This parameter change allows the formation of a metal oxide layer with superior heat resistance and flexibility while maintaining a relatively simple manufacturing process, as the treatment can be applied directly to the metal sheet without requiring additional layers or complex assembly steps.
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 resulting sheet heating element exhibits excellent heat resistance and flexibility, preventing peeling and degradation even under excessive bending or prolonged heating, with improved adhesion and durability of the insulating and heating layers.
Implementation Method 1
performing anodic oxidizing treatment on the sheet member until only a surface layer of the sheet member is oxidized while a center portion thereof is not oxidized
Implementation Method 2
performing anodic oxidizing treatment on the sheet member until only a surface layer of the sheet member is oxidized
Data Source
AI summary
A method for manufacturing a sheet heating element includes preparing a sheet member containing a metal or alloy, and performing anodic oxidizing treatment on the sheet member until only a surface layer of the sheet member is oxidized while a center portion thereof is not oxidized.