Segmented Heater Wire Layout for Vehicle Emblem De-icing
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Solution Overview
Problem
Conventional electromagnetic wave transmitting covers with a small number of heater systems require lengthy wires, leading to high electrical resistance and designability issues due to increased wire cross-sections, which are visually recognizable and impair the aesthetic appeal of vehicle emblems.
Innovation Solution
The electromagnetic wave transmitting heater employs a configuration with multiple heater wires disposed at intervals, paired lateral wires with larger cross-sections, and coupling wires that are axisymmetric, reducing wire length and cross-section while maintaining effective heating properties, allowing for uniform current distribution and improved designability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the wire length is increased to cover the entire heating area, then the heating coverage is improved, but the electrical resistance increases and heating properties deteriorate
Solution Approach 1:
The heater wire is divided into multiple segments (first heater wire, second heater wire, third heater wire, fourth heater wire) arranged in parallel between the pair of lateral wires. This segmentation allows the current to be distributed across multiple paths, reducing the effective resistance while maintaining comprehensive heating coverage across the entire emblem area.
2Reliability
If the wire cross section is increased to suppress electrical resistance, then the heating properties are improved, but the wire becomes visually recognizable and designability deteriorates
Solution Approach 1:
By dividing the heating function into multiple parallel wire segments, each individual wire can maintain a thin cross-section for aesthetic purposes while the collective parallel arrangement provides sufficient total conductivity for effective heating performance.
3Reliability
If the number of heater systems is increased to improve heating properties, then the heating performance is improved, but the device complexity increases
Solution Approach 1:
The heater comprises multiple simple linear wire segments connected in parallel between two lateral wires, creating an effective multi-system heating configuration through a relatively simple and systematic structure that is easy to manufacture and maintain.
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 enhances heating performance by reducing electrical resistance and wire visibility, ensuring efficient electromagnetic wave transmission and melting of snow/ice on vehicle emblems without compromising design aesthetics.
Implementation Method 1
The transparent heater film has a wiring pattern formed by copper plating or etching... the heater section includes four systems connected in parallel... excellent heating properties
Data Source
AI summary
Provided is an electromagnetic wave transmitting heater that has excellent heating properties and is capable of suppressing an increase in a cross section of a heater wire. The electromagnetic wave transmitting heater includes a plurality of heater wires disposed at intervals to allow transmission of electromagnetic waves, a pair of lateral wires, one of the pair of lateral wires being coupled to one end of each of the heater wires, another one of the pair of lateral wires being coupled to another end of each of the heater wires, and a pair of coupling wires, one of the pair of coupling wires being coupled to one of the pair of lateral wires, another one of the pair of coupling wires being coupled to another one of the pair of lateral wires. The lateral wires each have a cross section larger than a cross section of each of the heater wires.