Head-Up Display Movable Cover Mechanism for Dust Protection
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Solution Overview
Problem
Conventional head-up display (HUD) devices without protecting covers are vulnerable to damage from sunshine and dust due to their exposure, and incorporating a protective cover complicates the structure and increases costs.
Innovation Solution
A HUD device with a movable protecting cover and guiding mechanisms that allow the cover to easily engage and disengage from the projecting board assembly, using a driving mechanism to position the cover for protection or exposure, simplifying the structure and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protecting cover is added to the HUD device, then the projecting board is protected from sunshine and dust, but the structure becomes more complex and cost increases
Solution Approach 1:
The protecting cover is divided into multiple sections corresponding to different functional areas of the projecting board. Each section can be independently controlled to cover or expose specific areas, reducing the complexity of controlling a single large cover while maintaining comprehensive protection when needed.
Solution Approach 2:
The protecting cover is designed to be movable rather than fixed, allowing it to dynamically adjust its position and coverage area based on operational requirements. This dynamic capability enables the system to switch between protected and exposed states, resolving the contradiction between protection and accessibility.
2Reliability
If a protecting cover is added to the HUD device, then the projecting board is protected from sunshine and dust, but the device cost increases
Solution Approach 1:
The protecting cover serves multiple functions: it protects the projecting board from environmental factors, acts as a structural support element, and can function as a heat shield. By making the cover multi-functional, the need for additional separate components is reduced, thereby controlling manufacturing costs while achieving comprehensive protection.
Solution Approach 2:
The protecting cover is integrated with the housing structure and the driving mechanism, combining multiple functions into a single component. This integration reduces the total number of parts, simplifies assembly, and lowers manufacturing costs while maintaining effective protection.
3Area of moving object
If the projecting board assembly is made large to display vehicle information, then information display capability is improved, but the arrangement of protecting cover becomes difficult
Solution Approach 1:
The protecting cover is segmented into multiple smaller sections that correspond to different areas of the large projecting board. Each segment can be independently positioned and controlled, making it feasible to cover a large area without requiring a single complex large cover structure.
Solution Approach 2:
The protecting cover system utilizes multiple dimensions of movement and positioning, allowing segments to be arranged in a two-dimensional array that covers the large projecting board area. This dimensional approach enables effective coverage of large areas through coordinated movement of multiple smaller components rather than a single large component.
Data Source
AI summary
A head-up display device includes a housing, a base, a projecting board assembly, a protecting cover and a driving mechanism. The projecting board assembly has a holder and a projecting board. The protecting cover is movably arranged on the projecting board assembly, and can be used to cover the projecting board or uncover to expose the projecting board. The projecting board assembly is rotatably arranged above the base by the driving mechanism, and the driving mechanism can drive the projecting board assembly at a storing position or a displaying position. The driving mechanism can drive the protecting cover to be guided by the first guiding mechanism, so as to move the protecting cover. Otherwise, the driving mechanism can pull down the protecting cover by the second guiding mechanism to expose the projecting board, and make the projecting board assembly in the displaying position.