Motor Vehicle Light Device Thermal Isolation via Segmented Support Plate
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Solution Overview
Problem
The existing lighting devices for motor vehicles face thermal interference issues where heat from light sources disrupts electronic control components, and vice versa, affecting their operation.
Innovation Solution
A lighting device design featuring a support plate with a rigid substrate and separate primary and secondary tabs for light sources and electronic control components, respectively, with a curvature and cut lines that isolate them thermally, preventing heat transfer between the two.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If light sources and electronic control components are arranged on the same tab, then device complexity is reduced, but thermal interference occurs between light sources and electronic components
Solution Approach 1:
The support plate is segmented into multiple tabs, with light sources arranged on first tabs and electronic control components arranged on second tabs. This spatial segmentation physically separates components that generate heat from those sensitive to heat, eliminating thermal interference while maintaining a relatively simple overall structure.
2Area of stationary object
If light sources and electronic control components are positioned close together, then area is reduced, but heat transfer between components increases
Solution Approach 1:
By dividing the support plate into multiple tabs and positioning light sources and electronic components on separate tabs, the design minimizes the area occupied while ensuring thermal isolation through the tab structure, preventing unwanted heat transfer between components.
3Object-affected harmful factors
If light sources and electronic control components are isolated on separate tabs, then thermal interference is prevented, but device complexity increases
Solution Approach 1:
The support plate is divided into multiple tabs with light sources on first tabs and electronic components on second tabs. This segmentation provides effective thermal isolation while maintaining a simple, integrated structure that does not significantly increase device complexity.
Solution Approach 2:
The support plate serves multiple functions simultaneously: it provides mechanical support for both light sources and electronic components, electrical connection through conductive tracks, and thermal isolation through the tab structure. This multi-functionality eliminates the need for additional separate structures, keeping the overall device complexity low.
4Duration of action of stationary object
If heat dissipation is improved for light sources, then light source durability is increased, but electronic control components may be exposed to excessive heat
Solution Approach 1:
Light sources are positioned on first tabs and electronic control components on second tabs, creating thermal zones that allow efficient heat dissipation from light sources without exposing electronic components to excessive heat, thereby extending light source durability while protecting sensitive electronics.
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 design effectively isolates light sources and electronic control components, preventing thermal interference and ensuring optimal operation and durability by allowing for efficient heat dissipation and distribution.
Implementation Method 1
said substrate having a curvature, said primary tongue and said secondary tongue having a cut line which starts and ends at a base, the base forming the junction between a primary or secondary tongue and the rigid substrate
Data Source
Figure 1
Figure 2a
Figure 2b~3
AI summary
The invention relates to a lighting device (1) for a motor vehicle comprising: - at least one light source (10); - at least one electronic control component (11) for the power supply of said at least one light source (10); - a support plate (12) comprising a substrate (120) with: - a primary tab (121) on which said at least one light source (10) is disposed; - a secondary tab (122) on which said at least one electronic control component (11) is disposed, said secondary tab (122) being different from said primary tab (121).