Air Guider Heat Dissipation for Quiet Compact Projectors
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Solution Overview
Problem
Conventional projectors with high-power lamps face challenges in heat dissipation, generating noise and vibrations due to high-speed fans, and require additional space for cooling, making them less compact and less efficient.
Innovation Solution
A heat dissipation device incorporating an axial-flow fan and an air guider with air dividers, which directs airflow to both high and low-power components, reducing noise and space occupancy by decelerating airflow and optimizing cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a high rotation speed centrifugal fan is installed to cool the high-power lamp, then the cooling effect is improved, but noise increases and vibrations occur
Solution Approach 1:
The patent changes the rotational speed parameter of the fan, operating it at a lower speed rather than high rotation speed. This reduces the harmful noise and vibrations while maintaining adequate cooling effect through optimized airflow paths and air guiding structures
Solution Approach 2:
The patent introduces an air guider as an intermediary component between the fan and the components to be cooled. This air guider directs and distributes airflow more effectively, allowing the fan to operate at lower speeds while still achieving proper cooling without excessive noise and vibrations
2Temperature
If multiple fans are installed to cool different areas, then cooling coverage is improved, but device complexity and space occupancy increase
Solution Approach 1:
The patent designs a single fan system with multi-functional capability to cool both high-power and low-power components. By optimizing the airflow path and air guiding structure, one fan performs the cooling function that would traditionally require multiple dedicated fans, reducing device complexity
Solution Approach 2:
The patent segments the airflow into different paths using air dividers and air guiding structures. This allows a single fan to distribute cooled air to multiple locations (high-power lamp area and other components), achieving comprehensive cooling coverage without installing multiple fans
3Temperature
If multiple fans are installed to cool different areas, then cooling coverage is improved, but space occupancy increases
Solution Approach 1:
The patent employs a single multi-functional fan system that provides cooling coverage for both high-power and low-power components. This eliminates the need for multiple fans, significantly reducing the space occupied by the heat dissipation system while maintaining comprehensive cooling coverage
4Volume of moving object
If a single fan is used to cool both high and low-power components, then space occupancy is reduced, but cooling efficiency may decrease
Solution Approach 1:
The patent introduces an air guider as an intermediary component that optimizes airflow distribution from the single fan. This air guider directs airflow appropriately to both high-power and low-power components, ensuring efficient cooling while maintaining a compact design with reduced space occupancy
Solution Approach 2:
The patent uses air dividers and airflow segmentation structures within the air guider to divide the airflow into appropriate channels. This allows a single fan to efficiently cool multiple components by strategically directing airflow, preventing cooling inefficiency while maintaining compactness
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 effectively cools high and low-power components within a compact projector design, reducing noise and space requirements while maintaining efficient heat dissipation.
Implementation Method 1
a high rotation speed centrifugal fan is installed to cool the high-power lamp
Implementation Method 2
the air guider is equipped with air dividers to uniform the airflows within the air guider, thereby decelerating the airflows through the air guider
Data Source
AI summary
A heat dissipation device includes an axial-flow fan and an air guider. The axial-flow fan has an air inlet and air outlet. The air guider is connected to the air outlet and includes an air input section, an air output section, at least an air divider and at least an arc air divider. The air input section has an area smaller than that of the air outlet. The air output section has an area smaller than that of the air input section. The air divider is located within the air output section to divide the air output section into a plurality of air output channels. The arc air divider is located within the air guider.