Light-emitting Tube Array Cooling via Electrode Substrate Segmentation
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Solution Overview
Problem
The light-emitting tube array-type light source device experiences overheating due to increased power supply for enhanced luminance, leading to decreased luminous efficiency and unstable performance over time.
Innovation Solution
The electrode substrate is designed with through-holes that partially expose the light-emitting tubes, allowing for improved heat dissipation through ventilation slits, and additional auxiliary and trigger electrodes are used to maintain uniform luminance and reliable gas discharge performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If power supply is increased to enhance emission luminance and emission power, then luminance and emission power are improved, but heating amount increases proportionally causing overheating
Solution Approach 1:
The electrode substrate is divided into multiple regions with through-holes distributed throughout, segmenting the heat dissipation function across multiple locations rather than concentrating it in one area. This allows heat to be dissipated from multiple points simultaneously, effectively managing the increased heating caused by higher power supply.
Solution Approach 2:
The invention introduces a vertical dimension for heat dissipation by creating through-holes that extend through the entire thickness of the electrode substrate. This allows heat to escape from both the upper and lower surfaces of the substrate, effectively utilizing the third dimension (depth) to enhance heat dissipation capacity beyond what a single-sided cooling approach could achieve.
2Power
If power supply is increased to enhance emission luminance and emission power, then luminance and emission power are improved, but luminous efficiency decreases due to overheating
Solution Approach 1:
The electrode substrate is divided into multiple regions with through-holes distributed throughout, segmenting the heat dissipation function across multiple locations rather than concentrating it in one area. This allows heat to be dissipated from multiple points simultaneously, effectively managing the increased heating caused by higher power supply.
Solution Approach 2:
The invention introduces a vertical dimension for heat dissipation by creating through-holes that extend through the entire thickness of the electrode substrate. This allows heat to escape from both the upper and lower surfaces of the substrate, effectively utilizing the third dimension (depth) to enhance heat dissipation capacity beyond what a single-sided cooling approach could achieve.
3Power
If power supply is increased to enhance emission luminance and emission power, then luminance and emission power are improved, but performance stability deteriorates over time
Solution Approach 1:
The electrode substrate is divided into multiple regions with through-holes distributed throughout, segmenting the heat dissipation function across multiple locations rather than concentrating it in one area. This allows heat to be dissipated from multiple points simultaneously, effectively managing the increased heating caused by higher power supply.
Solution Approach 2:
The invention introduces a vertical dimension for heat dissipation by creating through-holes that extend through the entire thickness of the electrode substrate. This allows heat to escape from both the upper and lower surfaces of the substrate, effectively utilizing the third dimension (depth) to enhance heat dissipation capacity beyond what a single-sided cooling approach could achieve.
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 effectively prevents luminance decrease due to temperature increases, ensuring stable performance and expanding the device's usage in medical, sterilization, and industrial applications by enhancing heat dissipation and maintaining consistent light output.
Implementation Method 1
a plurality of gas discharge light-emitting tubes 11 made of glass tubes 10 and enclosing a gas that emits ultraviolet light when voltage is applied
Implementation Method 2
an ultraviolet phosphor layer 12 or a reflecting layer 12 formed on an inner bottom surface of the light-emitting tube 11, the ultraviolet phosphor layer 12 emitting ultraviolet light when excited by vacuum ultraviolet light from gas discharge
Implementation Method 3
In the case that the layer 12 comprises a reflecting material such as a magnesium oxide (MgO), the reflecting layer 12 reflects the vacuum ultraviolet light from gas discharge to a front surface side
Implementation Method 4
the electrode substrate having through-holes 33 that partially expose the light-emitting tubes 11 to the outside of the electrode substrate 30
Data Source
AI summary
A light-emitting tube array-type light source device includes: a plurality of light-emitting gas discharge tubes 11; and an electrode substrate 30 supporting the light-emitting gas discharge tubes in parallel on an upper surface thereof, the electrode substrate having a plurality of slits partially exposes a bottom surface of each light-emitting tube, thereby the light-emitting gas discharge tubes can be cooled through the slits.