Shield Connector Upstanding Piece Restricts Sleeve Displacement
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Solution Overview
Problem
Existing shielded electric wire connectors face issues with damage to the outer cover due to displacement of the shielding sleeve during wire laying, leading to potential short-circuits and damage to the insulating layer.
Innovation Solution
A shielded connector design featuring a hollow cylindrical shielding sleeve with an upstanding piece to prevent contact with the outer cover, ensuring the shielding member is positioned on the inner cover via the sleeve, thereby restricting displacement and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shielding sleeve is used to position the shielding member on the inner cover, then the shielding connection is improved, but the shielding sleeve may displace and damage the outer cover
Solution Approach 1:
The patent introduces a positioning protrusion on the shielding sleeve that fits into a corresponding positioning groove on the inner cover. This intermediary mechanical feature acts as a mediator to prevent the shielding sleeve from displacing and damaging the outer cover, while still allowing the shielding sleeve to fulfill its positioning function for the shielding member.
Solution Approach 2:
The positioning protrusion and groove are pre-formed on the shielding sleeve and inner cover respectively, before assembly. This preliminary action ensures that when the components are assembled, the shielding sleeve is automatically positioned correctly and cannot displace to damage the outer cover, preventing the harmful effect before it can occur.
2Ease of operation
If the shielding member is exposed on the inner cover, then the shielding terminal can be connected, but the exposed shielding member may contact the outer cover causing short-circuit
Solution Approach 1:
The positioning protrusion on the shielding sleeve serves as an intermediary that controls the exposure length of the shielding member. By fitting into the positioning groove on the inner cover, it ensures the shielding member is exposed enough for terminal connection but not so much that it contacts the outer cover, thus maintaining electrical insulation.
Solution Approach 2:
The positioning protrusion creates a localized constraint at the interface between the shielding sleeve and inner cover. This local quality control ensures that only the necessary portion of the shielding member is exposed for connection, while the rest remains insulated by the inner cover, preventing short-circuit with the outer cover.
Data Source
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AI summary
Either displacement of a shielding sleeve itself on an outer cover is restricted or interference of a shielding member on the shielding sleeve with the outer cover as an insulating cover is prevented, so that the damage of the outer cover can be avoided. A shielded connector of the present invention includes a shielding sleeve 3, a hollow cylindrical housing 1, and a shielding terminal 2. The shielding sleeve 3 has an upstanding piece 3c that stands up in an outer diameter direction to prevent such an event that an end portion of a shielding member 25 or an end portion of the shielding terminal 2 comes into contact with the outer cover 22.