Optical Isolator Heat Dissipation Structure Simplification
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Solution Overview
Problem
Conventional heat-dissipating structures for optical isolators are complex and require a large number of components, making them difficult to assemble and manufacture, with room for simplification and reduction in component count.
Innovation Solution
A simplified heat-dissipating structure featuring a cylindrical isolator holder with extracting members for radiation, a radiation stay with good thermal conductivity, and a holding stay that is welded to the isolator holder, eliminating the need for external heat conducting cover members and pressure plates, and using radiation sheets for enhanced heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional heat-dissipating structures with external heat conducting cover members and pressure plates are used, then heat dissipation is achieved, but device complexity increases and ease of manufacture deteriorates
Solution Approach 1:
The patent merges the external heat conducting cover member and pressure plate into a single integrated heat dissipation structure. The cover member directly contacts the radiation fins without requiring separate pressure plates, thereby reducing the number of components while maintaining effective heat dissipation from the magnetic garnet crystalline film.
Solution Approach 2:
The patent extracts and eliminates unnecessary components (external heat conducting cover member and pressure plate) from the heat dissipation system. By using the isolator holder itself as the heat conducting structure with integrated radiation fins, the design removes redundant parts while achieving the same or better heat dissipation performance.
2Temperature
If conventional heat-dissipating structures with multiple components are used, then heat dissipation is achieved, but ease of manufacture deteriorates due to difficult assembly
Solution Approach 1:
By combining multiple separate components into an integrated structure where the isolator holder serves as both the mounting structure and heat conduction path, the patent significantly simplifies assembly. The radiation fins are directly attached to the isolator holder, eliminating the need for separate cover members and pressure plates that required complex assembly steps.
3Temperature
If conventional heat-dissipating structures are used, then heat dissipation is achieved, but quantity of substance increases due to more components
Solution Approach 1:
The patent extracts and removes the external heat conducting cover member and pressure plate from the component list. The heat dissipation function is achieved using only the isolator holder and integrated radiation fins, thereby reducing the total quantity of components and material usage while maintaining effective temperature control.
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 reduces the number of components, simplifies assembly, and enhances heat dissipation efficiency, effectively suppressing temperature increases and maintaining optical characteristics.
Implementation Method 1
heat produced in the above-described magnetic garnet crystalline film is directly led to the second heat conductive members through the first heat conductive members and further led to the outside of the external heat conducting cover member by the respective radiation fins
Implementation Method 2
The above-described radiation fins extend laterally with a gap left relative to the above-described magnet to be extracted from the above-described guide openings to the outside of the above-described external heat conducting cover member through the extracting opening
Data Source
AI summary
The present invention includes a holding stay made of a heat conductive material that is the same as that of an isolator holder, the holding stay being in contact with a radiation stay made of a member having good thermal conductivity, the radiation stay being in contact with radiation fins extracted from the inside of the isolator holder through an external opening for extraction, columnar welded portions bond the holding stay and the isolator holder through openings for welding, the welded portions apply tensile force toward the isolator holder to the radiation stay via the holding stay, and the radiation stay presses the radiation fins by means of the above-described tensile force to be fixed to the isolator holder.