Segmented Heating Element for Uniform Surface Temperature
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Solution Overview
Problem
Existing heating devices struggle to achieve uniform heating across a support surface, often resulting in inefficient heat distribution and potential overheating due to the structural configuration of heating elements.
Innovation Solution
A heating device with a support and a heating element where the heating element is divided into multiple heating conductor groups connected in series and parallel, allowing for a uniform distribution of electrical current and heat output, avoiding long meandering conductors and minimizing current density variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating elements are arranged in a meandering form to cover the entire surface area, then uniform heating is achieved, but long heating conductors result in non-uniform current distribution and potential overheating
Solution Approach 1:
The heating element is divided into multiple heating conductor groups that are connected in parallel between two terminals. Each group contains multiple heating conductors arranged in series, creating a segmented structure that distributes current more evenly across the support surface while avoiding excessively long individual conductors.
2Power
If heating conductors are arranged to cover large surface area, then heating output is improved, but current density becomes non-uniform leading to overheating regions
Solution Approach 1:
The heating element is segmented into multiple parallel-connected heating conductor groups, with each group containing series-connected heating conductors. This segmentation distributes the electrical current more uniformly across all conductors, preventing localized overheating while maintaining high heating output across the support surface.
3Area of stationary object
If heating element is configured to maximize surface coverage, then heating area is increased, but structural complexity increases
Solution Approach 1:
The heating element is divided into multiple heating conductor groups connected in parallel between two terminals, with each group containing multiple heating conductors in series. This segmented modular structure simplifies the overall design compared to complex meandering patterns, while still achieving comprehensive surface coverage and uniform heating distribution.
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 configuration ensures a uniformly distributed heating output across the support surface, preventing overheating and maintaining consistent heat production, even on complex or curved surfaces, while allowing for efficient fastening and secure attachment.
Implementation Method 1
a heating element arranged on it, advantageously an ohmic heating element or a resistance heating element
Data Source
AI summary
A heating device has a support and a heating element arranged on it, the heating element having two electrical terminals and a multiplicity of heating conductors that are electrically connected to one another. Starting from the one terminal, the heating element is divided into a number of heating conductors parallel to one another and in series one behind the other toward the second terminal. In this case, at least three heating conductors are connected in parallel next to one another and at least three heating conductors are connected in series one behind the other. Series-connected heating conductor groups can be formed, heating conductors being parallel within a heating conductor group.