UV LED Fluid Sterilization Heat Dissipation
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Solution Overview
Problem
Existing fluid sterilization devices using ultraviolet LEDs face issues with heat dissipation, leading to potential damage from high temperatures during continuous use, and require separate cooling devices that increase device size and cost.
Innovation Solution
The fluid sterilization device incorporates ultraviolet LED light source units positioned within the flow path space of a cylindrical flow path tube, allowing for enhanced heat dissipation through contact with the flowing fluid, eliminating the need for separate cooling devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultraviolet LED is positioned outside the flow path tube, then the device structure is simple, but heat dissipation is insufficient causing the LED to be damaged during continuous use
Solution Approach 1:
The patent merges the light source unit with the flow path tube by positioning the ultraviolet LED inside the flow path space. This integration allows the flowing fluid to directly cool the LED, solving the heat dissipation problem while maintaining structural simplicity. The light source unit is combined with the flow path tube to enable both sterilization and cooling functions simultaneously.
Solution Approach 2:
The patent uses the flowing fluid (water or other liquids) as a cooling medium to dissipate heat from the ultraviolet LED. The fluid flow through the flow path space provides continuous cooling, preventing LED overheating and damage during continuous operation. This hydraulic cooling approach eliminates the need for separate cooling devices.
2Temperature
If a separate cooling device is provided for the ultraviolet LED, then heat dissipation is improved, but the device size and cost increase
Solution Approach 1:
The flowing fluid in the flow path space serves multiple functions: it cools the ultraviolet LED and simultaneously acts as the medium to be sterilized. This multi-functionality eliminates the need for separate cooling devices, reducing device size and complexity while maintaining effective heat dissipation.
Solution Approach 2:
The system uses its own operating fluid (water or other liquids that flow through the sterilization device) to cool the ultraviolet LED. The fluid that would otherwise just pass through the device serves dual purposes: cooling the light source and being the subject of sterilization. This self-service approach eliminates additional cooling components.
3Productivity
If ultraviolet LED is positioned outside the flow path tube, then installation is simple, but sterilization efficiency is reduced
Solution Approach 1:
The light source unit is merged with the flow path tube structure, with the ultraviolet LED positioned inside the flow path space. This integration ensures that the LED is in direct proximity to the fluid being sterilized, maximizing sterilization efficiency while the fluid simultaneously provides cooling. The merging of functions achieves both高效 sterilization and effective cooling.
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 configuration improves the cooling effect of the ultraviolet LEDs, preventing damage from high temperatures and reducing the device's size and cost by eliminating the need for additional cooling systems.
Implementation Method 1
heat dissipation is promoted by bringing into contact with the fluid flowing through the flow path space
Implementation Method 2
heat dissipation is promoted by bringing into contact with the fluid flowing through the flow path space
Implementation Method 3
an ultraviolet LED that emits ultraviolet light into the flow path tube
Implementation Method 4
a first light source unit disposed at the first end within the flow path space and configured to emit ultraviolet light into the flow path space
Data Source
AI summary
A fluid sterilization device includes: a cylindrical flow path tube having a flow path space therein through which a fluid is capable of flowing; a first inlet provided at a first end of the flow path tube and allowing the fluid to flow into the flow path space; a second inlet provided at a second end of the flow path tube opposite to the first end and allowing the fluid to flow into the flow path space; an outlet provided between the first end and the second end and allowing the fluid flowing through the flow path space to flow out; a first light source unit disposed at the first end and configured to emit ultraviolet light into the flow path space; and a second light source unit disposed at the second end and configured to emit ultraviolet light into the flow path space.