Heat Pipe Cooling Device for Projection Display Brightness
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Solution Overview
Problem
Projection image display devices with enhanced brightness generate excessive heat due to intense illumination, requiring an efficient cooling solution to maintain performance.
Innovation Solution
A cooling device comprising a thermally conductive base with embedded heat pipes and a fin section, where the heat pipes are alternately oriented to enhance heat transfer and dissipation, and a cooling fan for air movement, effectively managing heat generated by the DMD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If brightness is enhanced to achieve higher performance, then illumination intensity increases, but heat generation increases
Solution Approach 1:
The patent converts the harmful heat generated by the DMD into a manageable thermal flow by designing a cooling structure that directs air flow through specific paths. The heat, instead of being a problem to be eliminated, becomes the driving force for natural convection and the basis for targeted cooling design, thereby converting the harmful thermal effect into a controllable parameter for the cooling system.
Solution Approach 2:
The patent introduces a cooling structure with ventilation ducts and air flow paths as an intermediary between the heat-generating DMD and the external environment. This intermediary system manages heat transfer through controlled air circulation, separating the heat generation source from the heat dissipation location and enabling effective thermal management without directly cooling the DMD surface.
2Temperature
If a cooling structure is disposed in the DMD, then heat dissipation is enabled, but device complexity increases
Solution Approach 1:
The cooling structure is designed to serve multiple functions: it provides ventilation for heat dissipation, structural support for the DMD assembly, and defines air flow paths through its geometry. The housing and ventilation ducts are integrated into the existing device structure, allowing the cooling system to perform thermal management while maintaining structural integrity and enabling other device functions without requiring separate dedicated cooling components.
Solution Approach 2:
The patent merges the cooling structure with the housing and support framework of the projection image display device. The ventilation ducts are integrated into the housing structure, and the air flow paths are defined by the arrangement of existing components. This consolidation eliminates the need for separate cooling assemblies and reduces overall device complexity while maintaining effective heat dissipation.
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 cooling device significantly enhances the cooling efficiency of heat-generating components, ensuring effective heat dissipation and maintaining the performance of projection image display devices despite increased brightness.
Implementation Method 1
a heat pipe section (340, 350) embedded in the base (310)
Implementation Method 2
a thermally conductive base that is thermally connected to a heat-generating section
Implementation Method 3
a fin section (320) having a plurality of fins (322) and connected to the base (310) in a way that the fin section (320) covers the heat pipe section (340, 350)
Implementation Method 4
a fin section (320) having a plurality of fins (322) and connected to the base (310) in a way that the fin section (320) covers the heat pipe section (340, 350)
Implementation Method 5
a cooling fan for air movement
Data Source
AI summary
The cooling device of the present disclosure has a thermally conductive base that is thermally connected to a heat-generating section, a heat pipe section embedded in the base, and a fin section that has a plurality of fins and is connected to the base in a way that the fin section covers the heat pipe section.