Coaxial Connector Single Hoop Molding Process
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Solution Overview
Problem
The conventional shield connector for printed boards requires multiple processes, including press molding of terminals and resin molding, leading to inefficiencies in manufacturing and increased assembly and product costs.
Innovation Solution
A coaxial connector is manufactured using a single hoop molding process with a carrier for both the inner and outer terminals, simplifying the process and reducing the need for multiple injection works, thereby improving manufacturing efficiency and lowering costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple separate molding processes are used for inner terminal, outer terminal, and housing, then each component can be optimized independently, but the manufacturing complexity and number of processes increases
Solution Approach 1:
The patent combines the inner terminal, outer terminal, and housing into a single integrated molding process. The mold structure includes a first mold cavity for the inner terminal, a second mold cavity for the outer terminal, and a third mold cavity for the housing, all formed simultaneously in one injection molding operation, eliminating the need for multiple separate molding processes.
Solution Approach 2:
The single molding system performs multiple functions by forming different components in different cavities simultaneously. The mold apparatus serves as both the forming tool for individual components and the integration mechanism for assembling them into a complete coaxial connector in one operation.
2Manufacturing precision
If multiple injection works are performed for terminal and housing, then each part can be manufactured with high quality, but the manufacturing time and productivity decrease
Solution Approach 1:
The injection molding process continues simultaneously for multiple components within the same molding cycle. While the first, second, and third cavities are being filled with different materials to form the inner terminal, outer terminal, and housing, the process operates continuously without interruption, maximizing productivity while maintaining quality.
Solution Approach 2:
The mold cavities are pre-configured with appropriate materials and conditions before injection begins. The first cavity is prepared for the inner terminal material, the second for the outer terminal material, and the third for the housing material, allowing all components to be formed with optimal conditions from the start of the single molding cycle.
3Manufacturing precision
If multiple separate manufacturing processes are used, then each component can be controlled independently, but the assembly cost and product cost increase
Solution Approach 1:
The patent merges the manufacturing of inner terminal, outer terminal, and housing into a single integrated process. By forming all components in one molding operation with proper material selection and cavity design, the need for separate assembly operations is eliminated, reducing assembly costs while maintaining independent control over each component's properties through material and cavity selection.
Data Source
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AI summary
Manufacturing efficiency of a connector is greatly improved, and the manufacturing costs and the product cost can be reduced. A coaxial connector (P) for a board of the present invention is configured so that an extended portion of an outer terminal (42) and an extended portion of an inner terminal (44) are positioned so that one extended portion is not superimposed on the other extended portion when a half-cylinder portion of the outer terminal is viewed from an upper side.