Vehicle Light Module Ventilation Chamber Design
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Solution Overview
Problem
Existing cooling solutions for dual light-emitting modules in vehicle headlamps, which produce both main and dipped beams, are inefficient and require structural modifications, leading to increased production costs and inability to effectively cool both modules simultaneously while maintaining compactness.
Innovation Solution
A cooling circuit with separate chambers for each light-emitting module, utilizing a ventilation device to facilitate forced convection between the chambers, allowing for efficient cooling of both heat dissipation devices without increasing the module's size or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single ventilation device is used to cool both heat dissipation devices, then the compactness of the light module is preserved, but the cooling efficiency of each individual module may be compromised
Solution Approach 1:
The cooling system is segmented into two separate cooling circuits, each with its own ventilation device (first ventilation device 6 and second ventilation device 6'). This allows independent optimization of cooling for each heat dissipation device (first heat dissipation device 2 and second heat dissipation device 3) while maintaining a compact overall structure through the integrated housing arrangement.
Solution Approach 2:
The first and second cooling circuits are nested within a common housing structure, with each circuit containing its own heat dissipation device and ventilation device. This nested arrangement allows both cooling systems to coexist in a compact configuration, preserving module compactness while ensuring reliable cooling through dedicated ventilation paths for each circuit.
2Reliability
If separate cooling circuits are implemented for each light-emitting module, then cooling efficiency is improved, but the structural complexity and production cost increase
Solution Approach 1:
The system is segmented into two independent cooling circuits with separate ventilation devices and heat dissipation devices, ensuring that each light-emitting module can be cooled independently and efficiently without interfering with the other circuit.
Solution Approach 2:
Despite the segmentation into separate circuits, the two cooling systems are merged at the housing level, sharing a common structural framework and spatial arrangement. This merging approach reduces overall structural complexity compared to completely separate systems while maintaining the cooling efficiency benefits of independent circuits.
3Reliability
If the ventilation device is positioned to optimize cooling flow, then heat exchange efficiency is improved, but available space for actuators is reduced
Solution Approach 1:
The segmentation into separate cooling circuits allows each ventilation device to be optimally positioned within its own circuit for maximum heat exchange efficiency, while the overall distributed layout preserves space in other areas of the module for actuator accommodation.
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 solution effectively cools both light-emitting modules through forced convection, optimizing heat exchange and preserving the compactness and cost-effectiveness of the light module, while accommodating an actuator within the design.
Implementation Method 1
the ventilation device allows the formation of a call for air passing through the first chamber and then allowing forced cooling of the first heat dissipation device
Implementation Method 2
The air circulating in the ventilation device is then accelerated and directed towards the second chamber to allow the forced cooling of the second heat dissipation device
Implementation Method 3
a first chamber delimited by a first heat dissipation device and provided for cooling at least a first lighting element
Implementation Method 4
cooling by forced convection of each of the first and second heat dissipation devices
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
The invention relates to a vehicle lighting module (1), the lighting module (1) comprising a cooling circuit including: a first chamber (C1) delimited by a first heat dissipation device (2) and intended for cooling at least one first lighting element (7) of the lighting module (1), a second chamber (C2) delimited by a second heat dissipation device (3) and intended for cooling at least one second lighting element (8) of the lighting module (1), and a third chamber (C3) delimited by a ventilation device (6). According to the invention, the third chamber (C3) separates the first chamber (C1) and the second chamber (C2) from each other.