Vehicle Trim Panel Retention Tab for Power Adaptor Durability
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Solution Overview
Problem
Vehicle interior assemblies and trim panels struggle to withstand the forces associated with repeated insertion and removal of power adaptors from electrically powered accessories, which are typically higher than those required for traditional cigarette lighters.
Innovation Solution
A vehicle interior assembly with a trim panel that includes a snap-fitted design featuring a main body, retention tabs, and snap-fit parts, which are secured to an interior panel portion, allowing the trim panel to withstand the forces applied during insertion and removal of power adaptors by preventing movement perpendicular to the main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power outlets are installed in the vehicle interior panel, then electrically powered accessories can be charged, but the interior panel cannot withstand the forces required to insert and remove power adaptors
Solution Approach 1:
The interior panel is segmented into multiple components: the main interior panel portion and a separate trim panel. The trim panel is specifically designed to receive the power outlet and is engineered to withstand the insertion and removal forces of power adaptors, while the main interior panel maintains its other functions. This segmentation allows the power outlet area to have enhanced strength without compromising the overall panel design.
Solution Approach 2:
The trim panel introduces local quality enhancement at the power outlet location. It includes reinforced features such as a retention tab that extends into the interior panel portion and snap-fit parts that provide localized structural support. This localized reinforcement ensures that the specific area subject to high forces (power adaptor insertion/removal) has the necessary strength while the rest of the interior panel remains unchanged.
2Reliability
If the trim panel is securely attached to withstand insertion and removal forces, then durability is improved, but the complexity of the assembly increases
Solution Approach 1:
The retention tab is designed with dynamic characteristics - it is resilient and can deflect during the insertion and removal of power adaptors. The tab extends into the interior panel portion and can flex to accommodate the forces applied, then returns to its original position. This dynamic behavior allows the trim panel to withstand repeated forces without requiring overly complex rigid reinforcement structures.
Solution Approach 2:
The retention tab acts as an intermediary element between the trim panel and the interior panel portion. It provides the necessary mechanical connection and force distribution without requiring direct, complex bonding between the trim panel and the main panel. The snap-fit parts also serve as intermediaries, providing reversible attachment that simplifies assembly and disassembly while maintaining durability during use.
Data Source
AI summary
A vehicle interior assembly includes an interior panel and trim panel. The interior panel includes an opening and a mating part. The trim panel is snap-fitted into the opening of the interior panel and includes a main body. An accessory opening is provided in the main body adjacent to a first end thereof. The accessory opening is configured to receive an accessory adaptor that is insertable and removable perpendicularly to the first direction of the main body. A retention tab extends away from the first end of the main body along a section of a concealed surface of the interior panel adjacent to the opening and prevents movement of the trim panel perpendicularly to the first direction of the main body. A snap-fit part is releasably secured to the mating part of the interior panel portion.