Projector Cooling Duct with Integrated Fan and Sound Absorption
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Solution Overview
Problem
Conventional image projecting apparatuses face inefficiencies in cooling systems, leading to increased noise and costs due to complex configurations and limited cooling efficiency, which can damage heat-generating components and reduce durability.
Innovation Solution
An image projecting apparatus with a simplified cooling configuration featuring a main body casing with an inlet and outlet, a cooling duct communicating with both, and a cooling fan, where the duct is divided into channels to efficiently guide cooling air to multiple heat-generating parts, including a light source and display element, with a sound-absorbing member to reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple cooling fans and ducts are used to cool specific heat generating parts, then cooling coverage is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges multiple cooling fans and ducts into a single integrated cooling unit that serves multiple heat-generating components. The cooling unit includes a fan and duct structure that can simultaneously cool the light source, display element, and other components through a unified cooling pathway, thereby reducing the number of separate cooling systems while maintaining effective cooling coverage.
Solution Approach 2:
The cooling unit is designed with multi-functionality to serve multiple purposes: it cools the light source, display element, and other heat-generating components through a single integrated system. The duct structure can direct cooling air to different locations within the projector, making the single cooling unit universal for cooling various components rather than requiring dedicated cooling systems for each.
2Temperature
If multiple cooling fans are used to cool heat generating parts, then cooling performance is improved, but noise increases
Solution Approach 1:
The patent combines multiple cooling fans into a single fan unit, which reduces the number of rotating components and thus decreases overall noise generation. The single fan is positioned and designed to efficiently move cooling air through the duct system to reach all heat-generating components, achieving effective cooling while minimizing noise compared to multiple separate fans operating simultaneously.
3Temperature
If multiple cooling fans and ducts are used, then cooling coverage is improved, but manufacturing cost increases
Solution Approach 1:
The patent integrates multiple cooling functions into a single cooling unit with one fan and a unified duct structure, which reduces the number of parts that need to be manufactured, assembled, and tested. This consolidation simplifies the manufacturing process and reduces material costs while still providing comprehensive cooling coverage for all heat-generating components through the integrated duct system.
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 improves cooling efficiency, reduces noise and manufacturing costs, and effectively manages heat across multiple components within the apparatus, enhancing the durability and performance of the image projecting system.
Implementation Method 1
the projector is provided with a forced air cooling system, which includes a cooling fan and a duct
Implementation Method 2
the cooling air provided by the cooling fans emits heat from the heat generating parts to the outside
Data Source
AI summary
An image projecting apparatus includes a main body casing comprising an inlet provided to a lower part thereof, and an outlet spaced from the inlet. A heat generating part generates heat in an inner part of the main body casing. A cooling duct coupled to the main body casing communicates with the inlet and the outlet, and has a channel guiding cooling air drawn in through the inlet to the heat generating part and accommodates the heat generating part therein. Thus, an image projecting apparatus is provided having a simplified cooling configuration for cooling a heat generating part, thereby improving cooling efficiency, and substantially reducing noise and costs.