Vehicle Headlamp Dampening System for Vibration Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Increased complexity and mass in headlamp assemblies lead to stress and vibration issues during dynamic loads, causing failures in components like brackets and fasteners, and hinder the ability to adjust light sources without compromising fixation points.
Innovation Solution
A dampening system that allows the lamp housing to move along the X-axis while dampening unwanted movement along the Y-axis and Z-axis, using a combination of projections, isolator supports, and compressible isolators to absorb shocks and stresses, allowing for adjustable positioning of the light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the headlamp assembly includes more components and increased mass, then the lighting functionality and sophistication are improved, but the stress and vibration during dynamic loads increase causing component failures
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a dampening element into the lamp support housing before dynamic loads occur. This dampening element absorbs and dissipates vibrational energy and shocks during vehicle operation, preventing stress-induced failures in brackets, fasteners, and other components. The cushioning is built into the structural design to proactively protect against future dynamic loads.
Solution Approach 2:
The dampening element acts as an intermediary between the headlamp assembly components and the vehicle body. It mediates the transmission of dynamic loads and vibrations from the vehicle chassis to the headlamp components, reducing the harmful effects of these forces on the lighting assembly while allowing the sophisticated components to function reliably.
2Stability of the object's composition
If static fixation points are added to the lamp support housing, then the structural stability is improved, but the ability to adjust light source position is hindered
Solution Approach 1:
The patent applies dynamics by replacing static fixation points with a dynamic dampening element that provides both stability and adjustability. The dampening element allows the lamp support housing to be positioned and adjusted to various angles and orientations while maintaining structural stability during operation. This dynamic approach enables both structural integrity and adaptability for light source positioning.
Solution Approach 2:
The dampening element enables parameter changes in the lamp support housing position and orientation. By allowing controlled movement and adjustment of the housing along different axes, the system can change positional parameters to optimize light distribution while the dampening characteristics maintain structural stability during vehicle operation.
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 system effectively reduces stress and vibration, preventing component failures and enabling adjustable light source positioning without compromising fixation points, thereby enhancing the durability and adjustability of headlamp assemblies.
Implementation Method 1
a dampening system that allows the lamp housing to move along the X-axis while dampening unwanted movement along the Y-axis and Z-axis
Implementation Method 2
using a combination of projections, isolator supports, and compressible isolators to absorb shocks and stresses
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A headlamp assembly (10) comprising a light source and a housing (18) for the light source, a dampening element (19) for dampening movement of the housing in or generally along at least one axis in response to dynamic loads during operation of the vehicle, while permitting movement of the housing in a predetermined direction. Another embodiment comprises a headlamp assembly comprising a light source and a support housing (18) having a projection (20) extending from the support housing. At least one isolator (28, 30) is mounted on the projection (20) and a bracket (34) comprising a working surface (34c) generally opposes a landing surface of a landing (36). The working surface (34c) comprises a slot adapted to receive a post and permit the post (20) to move in the slot. The at least one isolator (28, 30) cooperates and engages the working surface or the landing surface to dampen movement of the support housing (18) in response to dynamic loads during operation of the vehicle.