Vehicle Headlamp Light Source Module Partition Wall Design
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Solution Overview
Problem
Current light source module packages for vehicle headlamps require multiple packages based on different wavelengths, increasing manufacturing costs and complicating design in limited spaces, while also requiring additional components for performance.
Innovation Solution
A light source module with a circuit board featuring first and second light emitting modules separated by a partition wall, each containing a blue LED light source and phosphor, where the phosphor emits different wavelengths of light, including white and amber, formed from silicone materials, allowing for separate operation and improved light extraction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light source module packages are used for different wavelengths, then the required light wavelengths can be achieved, but manufacturing costs increase and design complexity increases
Solution Approach 1:
The patent combines multiple light source modules with different wavelengths into a single integrated package. The housing contains multiple light source modules (e.g., white LED module, amber LED module, red LED module) that are merged into one unified structure, eliminating the need for separate packages for each wavelength and reducing overall design complexity
Solution Approach 2:
The single light source module package is designed to perform multiple functions by incorporating different types of LED modules (white, amber, red) within the same housing. This multi-functional design allows the package to provide various wavelengths simultaneously or selectively, replacing the need for multiple specialized packages
2Adaptability or versatility
If multiple light source module packages are used for different wavelengths, then the required light wavelengths can be achieved, but manufacturing costs increase
Solution Approach 1:
By merging multiple light source modules into a single package, the patent reduces the total number of components that need to be manufactured, stocked, and installed. This consolidation simplifies the supply chain and manufacturing process, leading to cost reductions despite the increased complexity within the single package
3Reliability
If additional components are added to ensure design performance, then the design requirements can be met, but device complexity and space requirements increase
Solution Approach 1:
The patent divides the light source module package into distinct sections using partition walls. Each light source module (white, amber, red) is separated into its own compartment, allowing independent optimization of each module while maintaining overall integration. This segmentation enables reliable performance for each wavelength without requiring additional external components
4Device complexity
If multiple light source modules are integrated in a single package, then design efficiency improves and space is reduced, but heat management becomes more challenging
Solution Approach 1:
The partition walls not only separate the light source modules optically but also thermally, creating distinct thermal zones for each LED module. This segmentation allows for targeted heat management strategies for each module type while maintaining the benefits of integration, preventing heat accumulation that would occur in a completely unified structure
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 solution reduces the number of light source modules needed, enhances design efficiency, and improves driving safety by allowing operation based on driving conditions, while reducing power consumption and occupying less space, with the blue LED providing greater luminosity and amber LED used only when necessary.
Implementation Method 1
each of the first and second light emitting modules may include a blue LED light source and a phosphor disposed on the blue LED light source. The phosphor may be configured to be activated by the blue LED light source to emit first light
Implementation Method 2
The first light emitting module may include a phosphor film positioned on the exterior of the first light emitting module. The phosphor film may be configured to emit a second light. The first light and the second light may have different wavelengths
Data Source
AI summary
A light source module and a vehicle headlamp is provided. The light source module and the vehicle headlamp include a circuit board and first and second light emitting modules that are disposed on the circuit board. The first and second light emitting modules are divided by a partition wall. Each of the first and second light emitting modules includes a blue LED light source and a phosphor that is disposed on the blue LED light source. The phosphor is configured to be activated by the blue LED light source to emit first light and includes a phosphor film that is disposed on an exterior of the first light emitting module and the phosphor film is configured to emit a second light.