Angled Heat Sink Light Module for Motor Vehicle Headlights
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Solution Overview
Problem
Existing light modules for motor vehicle headlights face inefficiencies due to the inability to maintain input faces of light guides parallel to the heat sink's planar face, resulting in light losses.
Innovation Solution
A light module design featuring a heat sink with two mounting faces forming an angle, allowing for flexible arrangement of light guides and ensuring input faces are always parallel, thereby minimizing light losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the light guides are arranged in a headlight with fixed geometry, then the structural arrangement is simple, but the input faces cannot always be arranged parallel to the heat sink face, resulting in light losses
Solution Approach 1:
The heat sink is divided into multiple planar faces (first planar face and second planar face) that form an angle with each other. Each light guide can be mounted on a different face, allowing each input face to be independently oriented parallel to its mounting surface, eliminating light losses while accommodating different spatial arrangements.
Solution Approach 2:
The solution transitions from a single-plane mounting surface to a multi-faceted three-dimensional structure. By utilizing angular relationships between multiple planar faces of the heat sink, the system achieves parallel alignment of input faces with mounting surfaces in different spatial orientations, resolving the contradiction between fixed geometry and alignment requirements.
2Adaptability or versatility
If the heat sink has a single planar face, then the structure is simple, but the light guides cannot be flexibly arranged in different directions
Solution Approach 1:
The heat sink structure is segmented into multiple planar faces (first and second planar faces) forming an angle, allowing light guides to be mounted on different faces and extend in different directions. This segmentation provides arrangement flexibility while maintaining a relatively simple overall heat sink 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
This design enhances light coupling efficiency by allowing the angle between mounting faces to adapt to the light guide arrangement, eliminating light losses and enabling flexible and effective light distribution in motor vehicle headlights.
Implementation Method 1
each input face being adapted to couple the light rays emitted by the light sources into the light guide
Implementation Method 2
a heat sink comprising at least two mounting faces forming an angle between them
Data Source
AI summary
A light module for a motor vehicle comprisinga heat sink comprising at least two mounting faces forming an angle (θ) between them,at least two light guides, each comprising an input face and a branch, and,at least two light sources, each arranged at one of the input faces of the light guides which is associated with it,in which each input face is arranged facing one of the mounting faces of the heat sink and is adapted to couple the light rays emitted by the light source into the associated light guide.