Cylindrical Wavelength Conversion Unit With Integrated Thermal Fluid Channel
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Solution Overview
Problem
Conventional wavelength conversion devices with heat exchange fins occupy large space, hindering the layout of internal components in lighting devices due to their bulky design.
Innovation Solution
A wavelength conversion unit with a cylindrical main body and fluorescent powder layer on its outer surface, incorporating a through channel for thermal fluid flow and a blade group to enhance heat dissipation, allowing for compact design and efficient thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat exchange fin is installed on the back of the color wheel disk to dissipate heat, then heat dissipation is improved, but the overall occupied space increases
Solution Approach 1:
The patent combines the heat dissipation function with the color wheel disk itself by integrating heat exchange fins directly into the disk structure. This merging of functions allows heat dissipation to be achieved without adding separate external cooling components, thereby improving heat dissipation efficiency while minimizing the increase in occupied space.
Solution Approach 2:
The color wheel disk is designed to serve multiple functions simultaneously: it acts as both the wavelength conversion component and the heat dissipation structure. The heat exchange fins are integrated into the disk, making the disk a multi-functional component that performs both optical conversion and thermal management, thus reducing the need for additional dedicated cooling components.
2Temperature
If a conventional wavelength conversion device with heat exchange fins is used, then heat dissipation is achieved, but the layout of internal components is hindered
Solution Approach 1:
By integrating the heat exchange fins directly into the color wheel disk structure, the patent reduces the number of separate components needed for heat dissipation. This simplifies the overall device architecture and makes the layout of internal components more straightforward, as the heat dissipation function is embedded within the existing wavelength conversion component rather than requiring additional external cooling assemblies.
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 reduces the lateral space occupied by the wavelength conversion unit, enables efficient thermal energy dissipation, and minimizes the need for internal heat exchange modules, resulting in a more compact lighting device with improved component layout and performance.
Implementation Method 1
The fluorescent powder layer is disposed on the cylindrical outer surface... The light source is configured to emit light toward the fluorescent powder layer
Implementation Method 2
The through channel has a first opening and a second opening opposite to each other. The lighting device further includes a pipeline and a thermal fluid. The pipeline has a first end and a second end. The first end and the second end are respectively coupled to the first opening and the second opening, such that the through channel and the pipeline together form a fluid path. The thermal fluid is located in the fluid path.
Data Source
AI summary
A lighting device includes a wavelength conversion unit, a driving unit, and a light source. The wavelength conversion unit includes a main body and a fluorescent powder layer. The main body has a cylindrical outer surface. The fluorescent powder layer is disposed on the cylindrical outer surface. The driving unit is configured to drive the wavelength conversion unit to rotate around an axis. The cylindrical outer surface surrounds the axis. The light source is configured to emit light toward the fluorescent powder layer.