Waterproof Connector Shielding via Segmented Press-Formed Parts
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Solution Overview
Problem
Existing waterproof electronic device connectors with complex shapes require special working processes, increasing production costs and potentially compromising waterproof integrity during resin filling.
Innovation Solution
A connector design utilizing inexpensive parts formed by press working, featuring a signal terminal, shell, interposition member, and shield case with threaded holes, ensuring good shielding characteristics and easy assembly, while maintaining waterproof performance through resin filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex shaped ground shell is used to achieve waterproofing and strong ground connection, then shielding characteristics and waterproofing are improved, but manufacturing cost increases due to requiring special working processes
Solution Approach 1:
The connector is divided into multiple functional components: a shell with ground connection legs, a signal terminal with signal connection legs, an interposition member with through-holes, and a shield case. This segmentation allows each part to be manufactured using simple press working processes rather than complex die casting or turning, reducing manufacturing cost while maintaining waterproofing and shielding functions through the assembled structure
Solution Approach 2:
The interposition member is inserted into the shield case, and the shell and signal terminal are inserted into the interposition member, creating a nested structure. This nesting arrangement allows multiple functional elements to be integrated in a compact configuration that achieves waterproofing and ground connection without requiring individually complex shaped components
2Reliability
If a complex shaped ground shell is used to achieve waterproofing and strong ground connection, then shielding characteristics and waterproofing are improved, but device complexity increases
Solution Approach 1:
The shielding function is distributed across multiple simple components rather than concentrated in one complex ground shell. The shell provides ground connection, the shield case provides shielding, and the interposition member provides structural support and electrical connection paths, simplifying each individual component while achieving the overall shielding function
Solution Approach 2:
The interposition member serves multiple functions: it provides structural support, creates electrical connection paths through its through-holes, isolates signal and ground connections, and facilitates assembly. This multi-functionality reduces the need for additional specialized components, simplifying the overall device structure
Data Source
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AI summary
A connector includes a shell that has a cylindrical shape and includes a body portion and a leg portion, the body portion being connected to a shell of the other connector, a ground plate that is a conductor plate, a claw that has a structure in which part of the ground plate is raised in a connector connection direction so as to have a strip-shaped tip and the tip supports the leg portion of the shell, and a case made of an insulator, the case to which the shell and the ground plate are to be attached. The case includes a plate-like base portion, a slit that is provided in one surface of the base portion, the slit into which the leg portion is to be inserted, and a groove that is provided in the other surface of the base portion, the groove into which the claw is to be inserted.