Vehicle Headlamp Assembly Individual Lamp Aiming Mechanism
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Solution Overview
Problem
Conventional headlamp assemblies using LEDs cannot individually aim each lamp unit, resulting in mismatched light distribution patterns, limiting the ability to adjust light emission effectively.
Innovation Solution
A headlamp assembly with a support bracket system that allows individual aiming of lamp modules using sub-pivot supports and aiming screws, enabling precise adjustment of light distribution patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plurality of lamp units are mounted on a tiered support bracket with collective aiming screws, then the structure is simple and manufacturing is easy, but individual aiming adjustment of each lamp unit is impossible resulting in mismatched light distribution patterns
Solution Approach 1:
The patent divides the aiming function into two levels: collective aiming of the support bracket and individual aiming of each lamp unit. Each lamp unit is equipped with its own aiming screws that are independent of the support bracket's aiming mechanism, enabling separate adjustment of each lamp's light distribution pattern while maintaining the overall structural simplicity.
2Manufacturing precision
If individual aiming mechanisms are added to each lamp unit, then light distribution pattern matching is improved, but device complexity increases
Solution Approach 1:
The patent segments the aiming system into independent modular units where each lamp unit has its own aiming screws. This segmentation allows for precise individual adjustment without requiring a completely new complex system, as each unit's aiming mechanism is simple and self-contained.
Solution Approach 2:
The support bracket serves multiple functions: it provides structural support for mounting lamp units and enables collective aiming adjustment. This multi-functionality reduces the need for additional complex components, as the bracket itself participates in both structural and aiming functions.
3Device complexity
If collective aiming is used for all lamp units, then device complexity is reduced, but light distribution control precision is insufficient for matching different lamp patterns
Solution Approach 1:
The patent implements a segmented aiming control system where the support bracket provides collective aiming for all lamp units, and each lamp unit has its own independent aiming screws for individual adjustment. This two-level segmentation enables both simple overall control and precise individual adjustment of light distribution patterns.
Data Source
AI summary
Provided is a headlamp assembly for vehicles. The headlamp assembly includes: a plurality of lamp modules on each of which a light-emitting device is mounted and each of which has a heat-dissipation structure for dissipating heat generated by the light-emitting device; and a support bracket which supports the lamp modules, wherein at least one of the lamp modules supported by the support bracket can be aimed individually with respect to the support bracket.