Vehicle Headlamp Module Coupling for Compact Beam Adjustment
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Solution Overview
Problem
Conventional headlight systems with multiple light modules face challenges in adjusting these modules independently or simultaneously due to bulky and complex coupling means, which are unsuitable for increasing the number of modules and are limited by aesthetic and spatial constraints.
Innovation Solution
A lighting device with a plurality of light modules featuring a connecting rod and slide mechanism that allows for simple and efficient adjustment, minimizing size and accommodating multiple modules by using offset configurations and shared pivot axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional coupling means are used to adjust multiple light modules, then adjustment capability is provided, but device complexity and bulkiness increase
Solution Approach 1:
The lighting device is divided into multiple independent light modules (first, second, third modules) each with its own intermediate support and pivot axis. This segmentation allows each module to be adjusted independently while maintaining overall system functionality, reducing the complexity of coupling mechanisms needed for coordination.
Solution Approach 2:
The main plate serves multiple functions: it supports all light modules, provides a common pivot axis for simultaneous adjustment, and acts as the structural base for the entire assembly. This multi-functionality reduces the need for separate coupling mechanisms, simplifying the overall device structure.
2Adaptability or versatility
If more light modules are added to the headlight, then lighting functionality is enhanced, but space requirements and device complexity increase
Solution Approach 1:
Light modules are arranged in a three-dimensional configuration with offsets along the longitudinal direction (x-axis) in addition to vertical stacking. This spatial arrangement allows multiple modules to be packed more efficiently within the available headlight housing volume, accommodating enhanced lighting functionality without proportionally increasing the overall footprint.
Solution Approach 2:
Multiple light modules are nested within the headlight housing structure, with each module positioned at different depths and vertical levels. The intermediate supports and main plate create a nested arrangement that maximizes space utilization, allowing three or more modules to coexist in a compact configuration.
3Ease of operation
If light modules are positioned with offsets, then adjustment flexibility is improved, but structural complexity increases
Solution Approach 1:
Light modules are positioned with asymmetric offsets relative to the main plate and each other. The first, second, and third modules have different longitudinal positions (x-coordinates) and vertical positions (z-coordinates), creating an asymmetric arrangement that provides varied adjustment flexibility for each module while maintaining a relatively simple common pivot axis structure.
Data Source
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Figure 3
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AI summary
The invention relates to a lighting device (7) for a headlamp of a vehicle (1), comprising a main mounting plate (9), a plurality of separate lighting modules (11, 111, 211) that are each mounted on an intermediate support (17, 117, 217), each intermediate support being mounted, relative to the main mounting plate (9), so as to be movable about a pivot axis (2000, 2100, 2200) of the module (11, 111, 211) in question, the device also comprising at least one member (25) for coupling an assembly or subassembly of two modules (11, 111, 211) of the plurality of modules (11, 111, 211), connecting the intermediate supports (17, 117, 217) bearing the two modules (11, 111, 211) so as to allow simultaneous movement of the two modules (11, 111, 211).