Vehicle Head-Up Display Cooling via Integrated Housing
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Solution Overview
Problem
Existing vehicle vision systems face challenges in efficiently cooling head-up displays, which generate substantial heat, leading to the need for passive or active cooling solutions that increase complexity and cost.
Innovation Solution
A vehicle vision system that incorporates a pivotable main mirror with a gear element and biasing mechanism for reduced play, combined with a cooling device featuring a cooling body and heat plate configuration within a cooling can housing, enhanced by a fan and thermal conductivity enhancements, to effectively manage heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If passive or active cooling solutions are implemented for head-up displays, then heat dissipation is improved, but device complexity and cost increase
Solution Approach 1:
The cooling system is integrated into the housing structure of the head-up display device. The housing serves dual functions as both structural enclosure and cooling pathway, eliminating the need for separate cooling components and reducing overall system complexity.
Solution Approach 2:
The housing structure itself provides cooling functionality through its design features such as openings, channels, and material selection. The system cools itself by utilizing natural convection and conduction through the housing, without requiring external active cooling mechanisms.
2Temperature
If traditional cooling systems are used for head-up displays, then cooling effectiveness is improved, but manufacturing cost increases
Solution Approach 1:
The housing structure performs multiple functions simultaneously: structural support, aesthetic enclosure, and thermal management. This multi-functionality eliminates the need for separate cooling components, reducing part count and manufacturing cost while maintaining cooling effectiveness.
Solution Approach 2:
The cooling capability is achieved by modifying parameters of the housing itself, such as material thermal conductivity, wall thickness in different regions, and opening configurations. These parameter changes enable effective cooling without adding expensive cooling components.
3Temperature
If complex cooling mechanisms are implemented, then heat management is improved, but design freedom is reduced
Solution Approach 1:
The housing is designed with segmented regions that have different thermal characteristics - some areas with higher thermal conductivity or thinner walls for heat dissipation, and other areas for structural integrity or aesthetics. This segmentation allows flexible heat management while maintaining design freedom.
Solution Approach 2:
The cooling performance can be adjusted by modifying the housing design parameters such as opening size, shape, and distribution. This dynamic approach allows the same basic housing structure to be adapted for different cooling requirements without fundamental design changes.
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
The solution provides enhanced cooling for head-up displays, reducing heat-related issues and complexity, while improving design freedom and cost-effectiveness by using a lightweight, cost-efficient cooling system that effectively dissipates heat through convection and conduction.
Implementation Method 1
effectively dissipates heat through convection and conduction
Implementation Method 2
effectively dissipates heat through convection and conduction
Data Source
AI summary
A display system of a vehicle includes a display device disposed in the vehicle and operable to display heads up information for viewing by a driver of the vehicle. The display device includes a mirror, a display screen and a cooling device. The mirror is pivotally mounted at a base plate and is pivotable via a pin of a mounting arm of the mirror moving along a spiral groove of a gear element when the gear element is rotated. The pin is urged towards a side wall of the spiral groove to limit play of the mirror relative to the base plate.