Virtual Image Display Housing With Composite Wall Impact Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current virtual image display apparatuses primarily focus on rearward impact absorption and lack effective impact absorption in the up-down direction, which is a significant safety concern when pedestrians collide with vehicles.
Innovation Solution
The virtual image display apparatus incorporates a housing with a composite wall structure featuring interference avoidance designs, where wall portions are arranged at different positions to absorb impact by sliding vertically and reducing interference, enhancing impact absorption across directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the housing uses a traditional single-wall structure, then the manufacturing is simple, but the impact absorption capability in multiple directions is insufficient
Solution Approach 1:
The housing is divided into a first housing part and a second housing part, with each part having its own wall structure. The first wall portion and second wall portion are segmented and positioned at different locations to provide directional impact absorption. This segmentation allows the housing to absorb impacts from different directions (rearward and up-down) without requiring a completely complex redesign of the entire structure.
Solution Approach 2:
The patent introduces a composite wall structure where the first wall portion and second wall portion are arranged at different positions and orientations. The first wall portion primarily absorbs rearward impacts, while the second wall portion absorbs up-down impacts. This spatial arrangement in multiple dimensions enables the housing to handle multidirectional impacts effectively.
2Reliability
If the wall portions are positioned to maximize impact absorption, then the safety improves, but the structural complexity increases
Solution Approach 1:
Different wall portions are designed with specific local qualities suited for their respective functions. The first wall portion is optimized for rearward impact absorption, while the second wall portion is positioned and structured for up-down impact absorption. Each wall portion has its own characteristics (thickness, orientation, reinforcement) tailored to the specific impact direction it needs to handle, improving overall safety without uniformly complicating the entire structure.
3Object-affected harmful factors
If the housing structure is designed to absorb impact in all directions, then the pedestrian safety improves, but the manufacturing complexity increases
Solution Approach 1:
The housing is segmented into manageable parts (first housing part and second housing part) with distinct wall portions for different impact directions. This segmentation allows for specialized design of each wall portion for specific impact scenarios while keeping the overall manufacturing process feasible through modular construction approaches.
Solution Approach 2:
The composite wall structure serves multiple functions: the first wall portion handles rearward impacts, the second wall portion handles up-down impacts, and together they provide comprehensive impact absorption. This multi-functionality is achieved within a unified housing structure that can be manufactured using standard automotive manufacturing techniques, balancing safety requirements with manufacturing feasibility.
Data Source
AI summary
A virtual image display apparatus includes a housing having a first housing part and a second housing part. The first housing part is located on a side facing in a first direction. The second housing part is located on a side facing in a second direction being opposite to the first direction. A composite wall is located at the housing on a side facing in a third direction being perpendicular to the first direction. The composite wall includes a first front wall portion and a second front wall portion. The first front wall portion is extended from the first housing part. The second front wall portion is extended from the second housing part. The first and second front wall portions have an interference avoidance structure that avoids interference when the first and second front wall portions approach each other by receiving a load.