Shielded Cable Connector Barrel Structure for Secure Crimping
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Solution Overview
Problem
Existing shielded cables with outer conductor terminals face issues of excessive crimping force leading to deterioration in communication performance and cable breakage, particularly when a strong fixing force is required.
Innovation Solution
A cable-equipped connector design featuring a combination of long and short protrusions on the barrel portion, where the long protrusions sink into the sheath and short protrusions lock onto the sleeve, providing a stronger fixing force while preventing detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a large crimping force is applied to increase the fixing force of the outer conductor terminal to the shielded cable, then the fixing force is improved, but communication performance deteriorates and cable breakage occurs
Solution Approach 1:
The protrusions are segmented into two distinct types: long protrusions that sink into the sheath and short protrusions that lock to the sleeve. This segmentation allows different portions of the fixing mechanism to perform different functions, distributing the stress and achieving reliable fixation without requiring excessive crimping force that would damage the cable or communication performance.
Solution Approach 2:
Different regions of the barrel portion are given different local qualities through the two types of protrusions. The long protrusions provide deep penetration into the sheath for anchoring, while the short protrusions provide surface-level locking to the sleeve. This local differentiation of function allows the terminal to achieve strong fixation without uniformly applying excessive force across the entire crimping interface.
Data Source
AI summary
A cable-equipped connector is provided with a cable including wires, a sheath, a sleeve and a braided wire having a folded portion, a connector housing connected to the wires, and a shield member including a covering portion for covering the connector housing, a barrel portion to be crimped to an end part of the cable where the folded portion is disposed, and a plurality of protrusions extending from the barrel portion toward the sheath. The plurality of protrusions include first and second long protrusions having tip parts sinking into the sheath and first short protrusions shorter than the first and second long protrusions and having such a length that tip parts do not sink into the sheath, but are lockable to the sleeve.