Air Guiding Structure for Projector Optical Element Cooling
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Solution Overview
Problem
Conventional projectors face challenges in cooling optical elements effectively, leading to potential malfunctions due to heat from the lamp module, which increases noise and manufacturing costs, and occupies internal space.
Innovation Solution
An air guiding structure is implemented within the projector to direct air flow through the optical element, eliminating the need for a radiator, thereby saving space and reducing costs while maintaining effective cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is added to cool down the optical element, then the cooling effect is improved, but the internal space is occupied, noise increases, and manufacturing cost increases
Solution Approach 1:
The air guiding structure merges the cooling function with the existing housing structure. The first and second side walls are integrated into the housing, forming a unified structure that guides air flow through the optical element without requiring separate cooling components. This integration eliminates the need for additional fans while maintaining effective cooling.
Solution Approach 2:
The air guiding structure acts as an intermediary between the air inlet and the optical element. It directs air flow from the air inlet through the first opening, across the optical element, and out through the second opening, serving as a mediator that enables cooling without requiring direct contact with the optical element or additional active cooling components.
2Temperature
If a radiator is used for cooling, then the cooling effect is improved, but the manufacturing cost increases
Solution Approach 1:
The invention extracts the radiator component from the cooling system and replaces it with a simple air guiding structure made from the existing housing. By removing the radiator and using only the housing walls to guide air flow, the manufacturing cost is reduced while maintaining the cooling function through passive air circulation.
Solution Approach 2:
The air guiding structure uses inexpensive materials (housing walls) instead of expensive radiator components. The structure is simple, easy to manufacture, and cost-effective, replacing the need for costly radiator assemblies while achieving the same cooling effect through natural air flow guidance.
3Temperature
If a fan is installed to cool the optical element, then the cooling effect is improved, but the noise increases
Solution Approach 1:
The air guiding structure enables the system to cool itself without external intervention. Air flows naturally through the housing structure, guided by the first and second side walls, across the optical element. This self-service cooling mechanism eliminates the need for powered fans, thereby reducing noise while maintaining effective cooling of the optical element.
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 air guiding structure efficiently cools the optical element, reducing noise and manufacturing costs by eliminating the need for a radiator, while maintaining optimal imaging quality.
Implementation Method 1
The air is guided into the first opening, circulated through the optical element and is vented out via the second opening
Data Source
AI summary
An air guiding structure is applied in a projecting device. The projecting device at least includes an optical element. The air guiding structure includes a first side wall and a second side wall. The first side wall having a first opening is disposed near a side of the optical element. The second side wall having a second opening is disposed near the other side of the optical element. Furthermore, the first side wall and the second side wall are connected to each other. The air is guided into the first opening, circulated through the optical element and is vented out via the second opening.