Projector Heat Dissipation Fin Turbulent Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Projectors face a challenge in achieving high brightness and low noise while maintaining a small size, as increasing fan speed for heat dissipation leads to noise and enlarging heat dissipation fins increases weight and size, compromising safety and convenience.
Innovation Solution
Incorporating a heat dissipation module with heat pipes and fins featuring a turbulent structure that disrupts the boundary layer of airflow, enhancing convection efficiency without increasing fan speed or fin size, allowing for effective heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotation speed of the fan is increased to enhance heat dissipation airflow, then heat dissipation efficiency is improved, but noise increases
Solution Approach 1:
The patent changes the physical structure parameters of the heat dissipation fin by adding turbulent structures (protrusions or recesses) to the fin surface. This modifies the airflow characteristics and heat transfer coefficients, enabling effective heat dissipation at lower fan speeds, thus reducing noise while maintaining productivity
Solution Approach 2:
The turbulent structures on the heat dissipation fin surface create curved and irregular flow paths for the air, disrupting laminar flow and generating turbulence. This curvature in the flow pattern enhances mixing and heat transfer efficiency, allowing the system to achieve better heat dissipation without increasing fan speed
2Productivity
If the size of the heat dissipation fin set is increased to improve heat dissipation efficiency, then heat dissipation efficiency is improved, but weight and size of the projector increase
Solution Approach 1:
The patent modifies the surface parameters of the heat dissipation fin by introducing turbulent structures, which increase the effective heat transfer area and improve convection efficiency. This allows the system to achieve enhanced heat dissipation performance without increasing the overall size or weight of the fin set
Solution Approach 2:
The turbulent structures are localized features on specific portions of the heat dissipation fin surface. These local modifications create regions of enhanced heat transfer without requiring the entire fin structure to be enlarged, thus improving heat dissipation efficiency while maintaining compact dimensions and lightweight construction
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 turbulent structure on the heat dissipation fins improves heat convection efficiency, achieving effective heat dissipation in projectors with high brightness, low noise, and small size without increasing fan speed or fin size, aligning with the design trend for compact and quiet projectors.
Implementation Method 1
The heat dissipation module may include a heat dissipation fin set connected to the heat generating components and the heat energy generated by the heat generating components may be transferred to the heat dissipation fin set
Implementation Method 2
The turbulent region has a turbulent section corresponding to the air flowing section, and the turbulent structure is disposed in the turbulent region and extends continuously in the turbulent section
Implementation Method 3
The heat energy may then be brought from the heat dissipation fin set to the outside of the projector through a natural convection or a forced convection created by a fan
Data Source
AI summary
A projector includes a casing, an optical engine module and a heat dissipation module. The optical engine module disposed in the casing includes a light source, a light valve and a projection lens. The heat dissipation module disposed in the casing includes at least two heat pipes and a heat dissipation fin set. The heat dissipation fin set includes at least a heat dissipation fin and at least a turbulent structure. The heat dissipation fin has a surface including a heat pipe arrangement region and a turbulent region adjacent to each other. The at least one heat pipe passes through the heat pipe arrangement region, and an air flowing section is formed near the at least one heat pipe. The turbulent region has a turbulent section corresponding to the air flowing section, and the turbulent structure is disposed in the turbulent region and extends continuously in the turbulent section.