Wavelength Conversion Element Turbulence Design for Heat Dissipation
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Solution Overview
Problem
Conventional designs for fluorescent color wheels in projection devices face challenges in achieving effective heat dissipation due to limited space, making it difficult to enhance the heat transfer mechanism while maintaining a compact size and cost efficiency.
Innovation Solution
A wavelength conversion element with a turntable featuring first and second turbulence portions of different shapes arranged around a central axis, where the second turbulence portions are placed between adjacent first turbulence portions, enhancing airflow and heat dissipation by creating multiple turbulence effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional turbulence mechanism is designed on the fluorescent color wheel, then heat dissipation effect is improved, but the available space is limited and device complexity increases
Solution Approach 1:
The turbulence mechanism is segmented into two distinct types: first turbulence portions with a first shape and second turbulence portions with a second shape. These segmented turbulence structures are distributed around the central axis, allowing each segment to contribute to heat dissipation while maintaining a compact overall design that fits within the limited space of the projection device.
Solution Approach 2:
Different regions of the fluorescent color wheel are assigned different turbulence characteristics. The first turbulence portions and second turbulence portions have different shapes, creating local variations in turbulence intensity and patterns. This local quality differentiation optimizes heat dissipation in specific areas while maintaining overall device compactness.
2Temperature
If the material and size of the fluorescent color wheel are changed to improve heat dissipation, then heat dissipation effect is improved, but overall size and cost of the mechanism increase
Solution Approach 1:
Instead of changing the overall size or material of the fluorescent color wheel, the invention segments the surface into multiple turbulence portions with different shapes. This segmentation allows heat dissipation enhancement without increasing the overall volume of the moving object, maintaining compact device dimensions while improving thermal management.
Solution Approach 2:
The invention changes the geometric parameters of the turbulence portions (different shapes, arrangements, and distributions) rather than changing the material properties or overall dimensions of the fluorescent color wheel. This parameter change approach improves heat dissipation while keeping the device size and cost constraints satisfied.
3Temperature
If more turbulence structures are added to enhance heat dissipation, then heat transfer effect is improved, but space requirements increase
Solution Approach 1:
The turbulence mechanism is divided into multiple discrete first turbulence portions and second turbulence portions that are distributed around the central axis. This segmentation allows the incorporation of numerous turbulence structures within the limited area of the fluorescent color wheel, enhancing heat transfer without requiring additional overall space.
Solution Approach 2:
The turbulence portions are arranged in a two-dimensional distribution pattern around the central axis, utilizing the rotational dimension of the fluorescent color wheel. This dimensional arrangement allows multiple turbulence structures to be packed efficiently within the available area, maximizing heat dissipation capability without increasing the footprint of the device.
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 improves heat dissipation by utilizing the unique arrangement of turbulence portions to effectively manage airflow and enhance heat transfer within the limited space, thereby improving the overall heat dissipation effect.
Implementation Method 1
a plurality of first turbulence portions and a plurality of second turbulence portions located on the first surface... produce a turbulence effect to drive a surrounding airflow to achieve heat dissipation
Data Source
AI summary
A wavelength conversion element, including a turntable, is provided. The turntable is configured to rotate along a central axis. The turntable has a first surface and a plurality of first turbulence portions and a plurality of second turbulence portions located on the first surface, wherein the first turbulence portions and the second turbulence portions are arranged by surrounding the central axis, a shape of each of the first turbulence portions is different from a shape of each of the second turbulence portions, and at least one of the second turbulence portions is arranged between two adjacent first turbulence portions of the first turbulence portions. A projector, including the wavelength conversion element, is further provided. The wavelength conversion element and the projector effectively improve the heat dissipation effect.