Solid-state laser cooling structure for electrode temperature management
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Solution Overview
Problem
Existing solid-state laser devices have an inefficient cooling effect on the electrode portions of the pumping lamp, leading to high temperatures.
Innovation Solution
A solid-state laser device design that includes a chamber with a first water tank portion for the laser rod and lamp, separate second water tank portions for the electrode portions, and a coolant system with specific inlet and outlet passages to enhance cooling efficiency, particularly targeting the electrode portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single water tank portion is used to cool both the laser rod and lamp, then the cooling structure is simple, but the electrode portions of the lamp cannot be efficiently cooled
Solution Approach 1:
The single water tank portion is divided into a first water tank portion for housing the laser rod and lamp, and separate second water tank portions for housing the electrode portions. This segmentation allows independent cooling circuits for each component, enabling efficient cooling of the electrode portions while maintaining overall structural organization.
Solution Approach 2:
Different cooling requirements of various components are addressed by providing dedicated cooling passages. The electrode portions are equipped with separate cooling passages that allow coolant to be supplied directly to these high-temperature areas, ensuring local cooling quality matches local heat generation.
2Device complexity
If the cooling passages are integrated into a single system, then the structure is compact, but the cooling efficiency for electrode portions is reduced
Solution Approach 1:
The cooling system is divided into separate cooling passages within the water tank portion. The first water tank portion contains passages for the lamp and laser rod, while separate second water tank portions contain passages for the electrode portions. This segmentation maintains structural integration while improving cooling efficiency through dedicated cooling paths.
Solution Approach 2:
Each component (lamp, laser rod, electrode portions) is equipped with cooling passages tailored to its specific cooling requirements. The electrode portions have dedicated passages that optimize coolant flow and heat dissipation, ensuring high cooling efficiency without compromising overall system compactness.
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 design efficiently cools the electrode portions of the lamp, improving temperature management and overall cooling performance.
Implementation Method 1
a coolant inflow passage of which one end communicates with the outer inlet portion and the other end forms inner inlet portions opened to only the second water tank portions
Implementation Method 2
a coolant is supplied to a coolant passage extending upward from the lower side of the laser rod
Implementation Method 3
return to a heat exchanger, which removes heat from the coolant
Data Source
AI summary
A solid-state laser device includes: a first water tank which houses a laser rod and a lamp and into which coolant is introduced; an outer inlet which is provided in a member forming a chamber and through which coolant is received into the chamber; and an outer outlet provided in said member and through which a coolant is discharged to the outside of the chamber. The solid-state laser device further includes: two second water tanks that house electrodes of both ends of the lamp, respectively, and communicate with the first water tank; a coolant inflow passage of which one end communicates with the outer inlet and the other end forms inner inlets opened to only the second water tanks; and a coolant outflow passage of which one end communicates with the outer outlet and the other end forms an inner outlet opened to the first water tank.