Shield Terminal Edge-Overlap Structure for Gap-Free Assembly
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Solution Overview
Problem
Shield terminals often have a large number of complex parts, making assembly challenging and prone to gaps between outer conductors, which can compromise shielding performance.
Innovation Solution
A shield terminal design featuring a first outer conductor with a specific wall configuration and an opening portion, a second outer conductor with a cover wall that covers the opening portion, and a module with an inner conductor and dielectric, allowing for improved assembly and shielding performance by closing gaps between the outer conductors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple outer conductors are assembled to form a shield terminal, then the shielding structure can be completed, but gaps may form between the conductors compromising shielding performance
Solution Approach 1:
The second outer conductor is nested within the first outer conductor, with the second outer conductor's rear end portion inserted into the first outer conductor's housing space. This nesting arrangement ensures continuous shielding without gaps while maintaining a compact structure that simplifies assembly.
Solution Approach 2:
The first outer conductor is pre-formed with a housing space and opening portion that accommodate the second outer conductor. This preliminary structuring ensures that when the second outer conductor is assembled, it automatically achieves proper positioning and gap-free coverage without requiring additional adjustment operations.
2Reliability
If a complex multi-part structure is used for the shield terminal, then shielding performance can be improved, but assembly becomes more difficult
Solution Approach 1:
The first and second outer conductors are merged into a single integrated shielding structure where the second outer conductor is inserted into the first. This merging eliminates the need for complex fastening mechanisms while maintaining continuous shielding, significantly simplifying the assembly process.
Solution Approach 2:
The nested configuration allows the second outer conductor to be simply inserted into the first outer conductor's housing space, creating a compact integrated structure. This nesting approach reduces assembly steps and eliminates the need for additional fastening parts while ensuring continuous shielding coverage.
3Reliability
If the outer conductors are designed with overlapping edges to close gaps, then shielding performance improves, but the structure becomes more complex
Solution Approach 1:
The second outer conductor is nested within the first outer conductor, with its rear end portion inserted into the housing space. This nesting creates automatic edge overlap that closes gaps without requiring additional complex structural features, maintaining simplicity while ensuring continuous shielding.
Solution Approach 2:
The first outer conductor is pre-designed with a housing space and opening portion that guide the second outer conductor into proper position. This preliminary structuring ensures automatic gap closure through edge overlap without requiring complex fastening or alignment mechanisms.
Data Source
AI summary
A shield terminal includes a first outer conductor, a second outer conductor connected to the first outer conductor, and a module housed in the first outer conductor. The first outer conductor has one wall facing one side intersecting a front-rear direction, and an opening portion open to the one side at a position rearward of the one wall. The module has an inner conductor that is connected to a front end portion of a shielded electric wire and dielectrics and housing the inner conductor, and is disposed facing the opening portion. The second outer conductor has a cover wall covering the opening portion, and the cover wall has a second edge portion covering, from the one side, a first edge portion of the one wall facing the opening portion.