Vehicle Lighting Unit Radial Flange Retainer Installation
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Solution Overview
Problem
Conventional vehicle lighting units require installation from underneath or behind the vehicle, leading to a 'see-through' condition and increased installation complexity and cost, as well as potential visibility of internal components.
Innovation Solution
A lighting unit with a radial flange and resilient retainers that allow for removable connection from a location forward of the vehicle, eliminating the 'see-through' condition and simplifying installation by using a retainer system that deflects during installation and removal, reducing the need for traditional fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lighting units are connected using traditional bolts or screws from underneath or behind the vehicle, then the connection is secure, but the installation complexity and cost increase, and the 'see-through' condition occurs
Solution Approach 1:
The connection system is segmented into multiple retainers distributed around the peripheral surface of the lighting unit housing. These retainers are spaced apart and extend rearwardly to engage with corresponding openings in the vehicle body, distributing the connection function across multiple points rather than using a single complex fastening mechanism.
Solution Approach 2:
The installation approach is inverted by enabling connection from the front of the vehicle rather than from underneath or behind. The retainers extend rearwardly from the front-facing lighting unit, allowing installation personnel to access and install the lighting unit from the front, thereby simplifying the installation process and reducing the need for complex under-vehicle or rear-access procedures.
2Reliability
If lighting units are connected using traditional bolts or screws, then the connection is secure, but installation time and cost increase
Solution Approach 1:
The complex fastening mechanism (bolts or screws) is extracted and replaced with simpler retainer elements. The retainers are designed to be inserted into corresponding openings in the vehicle body and engaged with the peripheral surface, eliminating the need for threaded fasteners and reducing installation time while maintaining connection security.
Solution Approach 2:
The retainers are configured to be self-aligning and self-securing. As the lighting unit is positioned, the retainers automatically align with the corresponding openings in the vehicle body and engage through their resilient deflection, eliminating the need for complex alignment procedures or additional fastening steps.
3Ease of manufacture
If lighting units are connected from underneath or behind the vehicle, then traditional installation methods work, but the 'see-through' condition allows light to be visible through gaps
Solution Approach 1:
The connection approach transitions from a single-point or limited-access installation method to a multi-dimensional solution. The retainers extend rearwardly from the front-facing lighting unit at different positions around the peripheral surface, creating engagement points in multiple dimensions that simultaneously achieve secure connection and eliminate gaps that cause light leakage.
Solution Approach 2:
The retainers are strategically positioned at specific locations around the peripheral surface of the lighting unit housing where they can effectively close gaps between the lighting unit and the vehicle body. This localized placement ensures that light leakage is prevented at critical areas while maintaining overall connection security.
4Strength
If retainers are made rigid for secure connection, then connection strength is high, but installation and removal become difficult
Solution Approach 1:
The retainers are designed with resilient properties that allow them to dynamically adjust during installation and removal. The resilient material enables the retainers to deflect during insertion into the corresponding openings and during removal, while maintaining strong connection strength when engaged in their normal position. This dynamic flexibility resolves the contradiction between connection strength and installation ease.
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 configuration simplifies installation and removal, improves installation quality, reduces costs, and enhances the appearance by eliminating light leakage between the lighting unit and the vehicle body.
Implementation Method 1
The at least one retainer is configured for insertion into a corresponding opening in the body of the vehicle and includes a resilient material that facilitates deflection of the at least one retainer during installation and removal of the lighting unit
Data Source
AI summary
A lighting unit for a vehicle is disclosed that includes a housing; a radial flange that extends outwardly of the housing; and at least one retainer that is fixedly connected to the radial flange such that the at least one retainer extends rearwardly towards a body of the vehicle during installation to allow for removable connection of the lighting unit to the body of the vehicle from a location forward of the vehicle. The at least one retainer is configured for insertion into a corresponding opening in the body of the vehicle and includes a resilient material that facilitates deflection of the at least one retainer during installation and removal of the lighting unit.