Cover System with Movable Edges for Compact HUD Housing
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Solution Overview
Problem
Existing head-up display systems in motor vehicles face challenges in integrating an imaging device and optical unit with minimal installation space, requiring complex kinematics and large space, while also needing a closure system to prevent soiling and allow a 'bent' beam path.
Innovation Solution
A novel cover system comprising two interlocking cover parts that form a closed surface with movable edges to allow for opening and closing, enabling cost-effective dual use for covering and shaping the light channel, requiring simple kinematics and minimal space, with optional flexible elements and a wiper for contaminant removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a closure system is provided to enclose the imaging device and optical unit, then soiling of the devices is reduced, but the installation space requirement increases
Solution Approach 1:
The cover system is integrated into the housing structure such that the cover parts form a unified closure mechanism with the housing walls. The first and second cover parts adjoin each other to form a closed surface that terminates flush with surrounding housing surfaces, merging the cover function into the overall housing structure rather than adding separate enclosing elements.
Solution Approach 2:
The cover parts are designed to be movable between an open state (for installation/maintenance) and a closed state (for protection). The first edge of the first cover part is movable about an axis, and the first edge of the second cover part is movable relative to the closed surface, enabling dynamic opening and closing while maintaining a compact closed structure.
2Shape
If complex kinematics are used to achieve flush closure, then the closure surface is flush with surrounding surfaces, but the device complexity increases
Solution Approach 1:
The closure system is divided into multiple cover parts (first cover part and second cover part) with distinct movement characteristics. The first cover part rotates about an axis, while the second cover part moves relative to the closed surface, allowing each segment to be simplified independently while achieving the overall flush closure effect.
3Volume of stationary object
If minimal installation space is used, then the head-up display is compact, but the beam path configuration becomes constrained
Solution Approach 1:
The optical unit deflects the beam path in a direction perpendicular to the light emitted by the imaging device, utilizing the third dimension (depth) to create a compact folded optical path. This allows the beam to travel a longer effective distance within a smaller overall volume, accommodating complex beam routing in minimal space.
Data Source
AI summary
A first cover part and a second cover part of a cover system adjoin one another in a first state and together form a closed surface with four corner regions. In a second state, the first edge of the first cover part is movable in a definable direction through a first definable angle about an axis which extends parallel to an imaginary straight line through the ends of the first edge of the first cover part, the first edge of the second cover part is movable in the definable direction through a second definable angle about an axis which extends parallel to an imaginary straight line through the ends of the first edge of the second cover part, and the first edge of the second cover part is movable in a definable direction by a definable distance. A housing can include the cover system.