Vehicle Door Mirror Mount With Dampener for Rattle Reduction
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Solution Overview
Problem
Existing vehicle door assemblies with side view mirrors often experience rattling due to vibrations, which can be distracting and affect the overall driving experience.
Innovation Solution
A vehicle door assembly with a mirror assembly that includes a base bracket and a dampener. The dampener is positioned between the base bracket and the outer door panel, spacing them apart and reducing vibration-induced rattling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the mirror assembly is directly mounted to the door panel, then the mounting structure is simple, but vibrations cause rattling that affects driving comfort
Solution Approach 1:
A dampener is introduced as an intermediary component between the mirror assembly base bracket and the door panel. This dampener absorbs vibrations and prevents rattling while maintaining a relatively simple mounting structure. The dampener acts as a mediator that decouples the vibration transmission path without adding significant structural complexity.
Solution Approach 2:
The dampener is pre-installed between the base bracket and the door panel mounting surface before the mirror assembly is fully secured. This beforehand cushioning approach prevents vibration-induced rattling from occurring in the first place, rather than attempting to mitigate it after the problem arises.
2Object-affected harmful factors
If the dampener is positioned between the base bracket and door panel, then rattling is reduced, but the mounting structure becomes more complex
Solution Approach 1:
The dampener serves as a simple intermediary component that can be integrated into the existing mounting structure. Rather than creating a complex multi-component system, the dampener is positioned directly in the vibration transmission path between the base bracket and door panel, effectively reducing rattling with minimal additional complexity.
3Stability of the object's composition
If the base bracket is directly attached to the door panel, then the connection is rigid and stable, but vibrations are transmitted causing noise
Solution Approach 1:
The dampener is positioned between the base bracket and door panel to serve as a vibration-isolating intermediary. This allows the connection to remain stable and secure while the dampener absorbs and dampens vibrations, preventing them from being transmitted to the door panel and causing noise.
Solution Approach 2:
The dampener converts the harmful vibration energy into beneficial damping effects. By absorbing and dissipating vibration energy, the dampener transforms what would be harmful rattling and noise into harmless thermal energy, while maintaining the structural stability of the mirror assembly connection.
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 implementation of the dampener effectively reduces rattling and vibrations between the mirror assembly and the vehicle door assembly, enhancing the quietness and comfort of the driving experience.
Implementation Method 1
The dampener is disposed between the base bracket and at least a portion of the outer perimeter mounting opening of the outer door panel such that the base bracket and the outer door panel are spaced with respect to each other by the dampener
Data Source
AI summary
A vehicle door assembly comprises an inner door panel, an outer door panel and a mirror assembly. The outer panel is fixed to the inner door panel, the outer door panel having an mounting opening. The mirror assembly is supported to an outer perimeter of the mounting opening of the outer door panel. The mirror assembly has a base bracket and a dampener. The dampener is disposed between the base bracket and at least a portion of the outer perimeter mounting opening of the outer door panel such that the base bracket and the outer door panel are spaced with respect to each other by the dampener.