Liquid Cooling Device with Storage Buffer for Projector Pulsation
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Solution Overview
Problem
Existing projector designs experience pulsation in cooling liquid, which affects the stability of image quality due to direct flow of pulsating cooling liquid into optical elements, making it difficult to maintain consistent image projection.
Innovation Solution
Incorporating a liquid storage unit that acts as a buffer to absorb pulsation, arranging the liquid pumping unit, liquid storage unit, and optical element holding member along the circulation path to prevent pulsation from reaching the optical elements, and utilizing a heat exchange section with a thermoelectric conversion element to effectively cool the cooling liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a liquid pumping unit is used to circulate cooling liquid, then cooling effectiveness is improved, but pulsation occurs in the cooling liquid which deteriorates image quality stability
Solution Approach 1:
A liquid storage unit is introduced as an intermediary component between the liquid pumping unit and the optical element holding member. This storage unit temporarily holds the cooling liquid, allowing the pulsating flow from the pump to be smoothed before the liquid reaches the optical elements, thereby eliminating the harmful pulsation while maintaining effective cooling
Solution Approach 2:
The cooling liquid circulation system is segmented into distinct functional zones: the liquid pumping unit for active circulation, the liquid storage unit for pulsation absorption, and the optical element holding member for cooling. This segmentation allows each component to perform its specific function optimally without interfering with others
2Productivity
If cooling liquid flows directly from the liquid pumping unit to the optical element holding member, then cooling efficiency is improved, but pulsation spreads to the optical elements deteriorating image quality
Solution Approach 1:
The liquid storage unit serves as a buffer intermediary that decouples the direct flow path between the pump and optical elements. It absorbs the pulsating energy while maintaining continuous cooling liquid supply to the optical elements, thus preserving cooling efficiency while eliminating pulsation-related image quality issues
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
This configuration stabilizes image quality by eliminating pulsation in the cooling liquid and enhances cooling efficiency, ensuring effective heat transfer to optical elements, thereby maintaining optimal projector performance.
Implementation Method 1
the liquid storage unit functions as a buffer to absorb the pulsation of the cooling liquid
Implementation Method 2
the optical element is cooled down by exchanging heat with the cooling liquid circulating along the ring-shaped flow path through the optical element holding member
Implementation Method 3
utilizing a heat exchange section with a thermoelectric conversion element to effectively cool the cooling liquid
Data Source
AI summary
A projector includes a liquid-cooling device configured to cool down an optical element, an optical element holding member that is constructed to allow cooling liquid to flow in and out and holds the optical element; a liquid pumping unit that circulate cooling liquid; a liquid storage unit that is constructed to allow cooling liquid to flow in and out and temporarily stores cooling liquid therein; and a plurality of liquid circulation members that connect the optical element holding member, the liquid pumping unit, and the liquid storage unit and define a flow channel of the cooling liquid, and the liquid pumping unit, the liquid storage unit, and the optical element holding member are arranged along a circulation direction of the cooling liquid along the flow path in order of the liquid pumping unit, the liquid storage unit, and the optical element holding member.