LED Light Source Thermal Layout for Fast Output Stabilization
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Solution Overview
Problem
Existing LED light source devices in analysis devices face challenges in quickly stabilizing light output after power activation and in minimizing temperature fluctuations, which affect analysis accuracy.
Innovation Solution
The LED light source device employs an LED substrate and spacer with high thermal conductivity, in contact with a housing and lid, to rapidly stabilize light output and reduce temperature fluctuations by optimizing thermal conductivity and heat capacity distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the LED light source is activated, then the light amount can be provided for analysis, but the light amount takes time to stabilize due to temperature changes
Solution Approach 1:
The patent applies parameter changes by selecting materials with specific thermal conductivity properties. The substrate and spacer are made from materials having higher thermal conductivity than the housing and lid, which accelerates heat dissipation and stabilizes the LED operating temperature faster, thereby reducing the stabilization time and improving analysis throughput.
2Reliability
If the LED light source operates continuously, then analysis can be performed, but temperature fluctuates due to disturbances affecting light amount stability
Solution Approach 1:
The patent utilizes parameter changes by optimizing the thermal conductivity of different components. The substrate and spacer use materials with higher thermal conductivity to efficiently conduct heat away from the LED, while the housing and lid have lower thermal conductivity to provide thermal insulation. This differential thermal conductivity design minimizes temperature fluctuations from external disturbances and maintains stable light output.
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 enables quick stabilization of light output and minimizes temperature fluctuations, enhancing analysis accuracy and efficiency by efficiently managing heat propagation and distribution.
Implementation Method 1
an LED substrate 102 is disposed on a spacer 103, the substrate 102 and the spacer 103 are brought into contact with at least one of a device housing 104 or a device lid 105, and a thermal conductivity of the substrate 102 and a thermal conductivity of the spacer 103 are higher than a thermal conductivity of the housing 104 and a thermal conductivity of the lid 105
Data Source
AI summary
An object of the present invention is to quickly stabilize a light amount of an LED light source device used in absorbance analysis and to suppress the fluctuation of the temperature due to disturbance. In an LED light source device according to the present invention, an LED substrate is disposed on a spacer, the substrate and the spacer are brought into contact with at least one of a device housing and a device lid, and a thermal conductivity of the substrate and a thermal conductivity of the spacer are higher than a thermal conductivity of the housing and a thermal conductivity of the lid.