Rotating Phosphor Wheel Taylor Vortex Cooling
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Solution Overview
Problem
Laser-phosphor system light source apparatuses face challenges in cooling efficiency, leading to decreased reliability and light conversion efficiency due to heat generation in the phosphor unit, which existing cooling technologies struggle to address effectively.
Innovation Solution
A light source apparatus design featuring a rotator with a heat dissipation member having a cylindrical surface parallel to its rotation axis, housed in a cylindrical housing, generates a Taylor vortex for enhanced heat transfer, improving cooling efficiency without the need for internal cooling members like fans or heat exchangers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional cooling methods (blower fan or motor rotation) are used for the phosphor wheel, then the phosphor unit can be cooled, but the cooling efficiency is insufficient and the system complexity increases
Solution Approach 1:
The phosphor wheel itself serves as the heat dissipation member, utilizing its own rotational motion to generate Taylor vortex for cooling. This self-service approach eliminates the need for separate cooling mechanisms while effectively managing heat from the phosphor unit.
Solution Approach 2:
The invention changes the cooling mechanism by utilizing the rotational parameter of the phosphor wheel to generate Taylor vortex flow patterns. By adjusting rotation speed and optimizing the cylindrical geometry, the cooling efficiency is enhanced without adding external cooling components.
2Temperature
If a blower fan is used to cool the phosphor wheel, then heat can be dissipated, but noise increases and the system becomes more complex
Solution Approach 1:
The phosphor wheel's own rotation is utilized to generate the cooling effect through Taylor vortex formation. This eliminates the need for blower fans or other external cooling devices, thereby reducing system complexity and noise while maintaining effective heat dissipation.
Solution Approach 2:
The invention extracts the cooling function from separate components (blower fan, heat exchanger) and integrates it into the phosphor wheel's own rotational motion. The phosphor wheel simultaneously performs its wavelength conversion function and heat dissipation function through the generated Taylor vortex.
3Temperature
If internal cooling members (fans or heat exchangers) are installed in the housing, then cooling efficiency improves, but the housing volume increases
Solution Approach 1:
The invention merges the cooling function with the phosphor wheel structure itself. The phosphor wheel rotates within the existing housing space, generating Taylor vortex for cooling without requiring additional internal cooling members. This combines the wavelength conversion and heat dissipation functions in a compact configuration.
Solution Approach 2:
The phosphor wheel serves its own cooling needs through its rotational motion, eliminating the requirement for separate cooling components that would increase housing volume. The self-generated Taylor vortex provides sufficient cooling within the existing housing boundaries.
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
This design enhances heat transfer rates and cooling efficiency, reducing the volume of the cooling system, minimizing noise, and improving reliability by effectively managing heat without increasing the apparatus's size or complexity.
Implementation Method 1
This makes it possible to generate a Taylor vortex between the cylindrical surface of the heat dissipation member and the cylindrical surface of the housing during rotation of the rotator, thereby improving a heat transfer rate.
Data Source
AI summary
A light source apparatus according to an embodiment of the present disclosure includes: a rotator including a light emission unit on one surface, a heat dissipation member that is coupled to the rotator, and has a first cylindrical surface substantially parallel to a rotation axis of the rotator, and a housing that contains the rotator and the heat dissipation member, and has a second cylindrical surface substantially parallel to the first cylindrical surface of the heat dissipation member.