Shield Connector Outer Conductor Alignment Under Press-Fit Load
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Solution Overview
Problem
Existing shield connectors face challenges in maintaining the axial center of the outer conductor tube, leading to potential misalignment when external forces are applied, and relying solely on press-fitting blades is insufficient to prevent this issue.
Innovation Solution
The shield connector design includes a tubular outer conductor tube with press-fitting blades and holding protrusion portions. The press-fitting blades are locked on the inner peripheral surface of the through hole in the outer shell body, while the holding protrusion portions contact the inner surface at a position displaced from the press-fitting blades in the circumferential direction, ensuring the outer conductor tube remains aligned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a press-fitting blade is formed on the outer conductor tube to lock it on the inner peripheral surface of the through hole, then the outer conductor tube can be attached to the outer shell body, but the axial center of the outer conductor tube may be displaced when external force acts on it
Solution Approach 1:
The outer conductor tube is divided into multiple functional elements: press-fitting blades for attachment and holding protrusion portions for alignment. This segmentation allows each element to perform its specific function independently, with the press-fitting blades providing attachment strength and the holding protrusion portions maintaining axial center alignment.
Solution Approach 2:
The holding protrusion portions act as intermediary elements between the outer conductor tube and the outer shell body. These protrusions engage with the inner peripheral surface of the through hole to prevent axial center displacement, serving as a mediator that maintains alignment while the press-fitting blades provide the primary attachment.
2Device complexity
If only press-fitting blades are used to attach the outer conductor tube, then the attachment process is simple, but it is not easy to keep the outer conductor tube from coming out of alignment
Solution Approach 1:
The attachment structure is segmented into two distinct functional components: press-fitting blades for simple attachment and holding protrusion portions for precision alignment. This segmentation allows the structure to achieve both simplicity in attachment and high precision in alignment without increasing overall complexity.
Solution Approach 2:
Different local regions of the outer conductor tube are given different functional qualities: the press-fitting blades are designed for mechanical interlocking and attachment, while the holding protrusion portions are designed for precise positional maintenance. This local differentiation of quality allows each feature to optimize its specific function.
Data Source
AI summary
An outer conductor includes a tubular outer conductor tube and an outer shell body. The outer shell body includes a through hole in which the outer conductor tube is disposed. The outer conductor tube includes a press-fitting blade that protrudes outward in a radial direction and is locked on an inner peripheral surface of the through hole of the outer shell body, and a holding protrusion portion that protrudes outward in the radial direction and comes into contact with the inner peripheral surface of the through hole of the outer shell body. The press-fitting blade is disposed at two end portions in a radial direction of the outer conductor tube. The holding protrusion portion of the outer conductor tube is disposed at a position displaced from the press-fitting blades in a circumferential direction when the outer conductor tube is viewed from an axial direction.