Vehicle Light Source Module Layout for Precise Central Temperature Sensing
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Solution Overview
Problem
Existing light source modules for motor vehicles with matrixes of light-emitting diodes face inefficiencies in temperature monitoring, particularly in regions with high heat generation and large temperature differences, as current temperature sensor distributions do not provide precise enough measurements without increasing the overall number of sensors.
Innovation Solution
A light source module with a substrate featuring a higher density of temperature sensors in the central region compared to the peripheral region, arranged in one or two dimensions, allowing for precise temperature measurement where heat is generated most intensely, while maintaining a uniform distribution of light sources and reducing sensor usage in less demanding areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of temperature sensors is increased uniformly across the entire substrate, then measurement precision in the central region is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies local quality by implementing a non-uniform distribution of temperature sensors across the substrate, with higher density in the central region and lower density in peripheral regions. This resolves the contradiction by concentrating sensors where measurement precision is most critical (central region with high heat generation) while reducing the total number of sensors in less critical areas, thereby maintaining high measurement precision where needed without unnecessarily increasing device complexity.
2Measurement precision
If more temperature sensors are used in the central region, then temperature monitoring accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent implements local quality by strategically concentrating temperature sensors in the central region where heat generation is highest and temperature variations are most critical, while reducing sensor density in peripheral regions. This approach improves temperature monitoring accuracy in the most critical area without proportionally increasing the total number of sensors, thereby optimizing the balance between monitoring accuracy and manufacturing cost.
3Area of stationary object
If temperature sensors are uniformly distributed, then coverage is maximized, but measurement precision in high-heat regions is insufficient
Solution Approach 1:
The patent resolves this contradiction by applying local quality through a non-uniform sensor distribution strategy. The central region, which generates the most heat and requires the highest measurement precision, receives a higher density of temperature sensors. Peripheral regions with lower heat generation and smaller temperature differences receive fewer sensors. This localized optimization ensures adequate coverage across the entire substrate while concentrating measurement precision resources where they are most needed.
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 enables precise temperature monitoring and adjustment of light-emitting diodes in high-heat regions while minimizing the total number of sensors required, optimizing performance and lifespan without compromising accuracy in lower-heat areas.
Implementation Method 1
temperature sensors arranged on the substrate... each of which determines the actual temperature for a group of light-emitting diodes
Data Source
AI summary
A light source module for a motor vehicle, comprising a substrate, multiple light sources, and temperature sensors, wherein the light sources and the temperature sensors are arranged on the substrate, wherein the substrate has a central region and a peripheral region, and wherein the number of temperature sensors per unit area is greater in the central region than in the peripheral region.