Shielded Cable Crimp Locking Structure for Reduced Joint Diameter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing crimping structures for shielded cables result in an enlarged crimped part due to the engagement of hook-like pieces, leading to an increased diameter.
Innovation Solution
A shielded electrically conductive path with a crimping portion that includes an inner peripheral side locking portion and an outer peripheral side locking portion, where the inner peripheral side locking portion is located radially inward and the outer peripheral side locking portion is accommodated in a recess, reducing the overall diameter and preventing relative displacement of the shielded cable with respect to the shield terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If hook-like pieces are engaged to prevent expansion deformation of the crimping portion, then the crimping portion is secured against deformation, but the crimped part diameter is enlarged due to four layers overlapping in radial direction
Solution Approach 1:
The outer peripheral side locking portion is nested within the inner peripheral side locking portion by accommodating it in a recess, creating a compact nested structure that prevents radial expansion while maintaining deformation prevention functionality
Solution Approach 2:
The locking mechanism transitions from radial stacking (four layers in radial direction) to axial arrangement (inner and outer locking portions positioned at different radial positions with one accommodated in recess), changing the dimensional organization to reduce overall diameter
Data Source
AI summary
A sleeve surrounds an exposed part extending forward of the sheath, out of the shield layer, and is crimped to an outer peripheral surface of the insulation coating. A crimping portion of an outer conductor of a shield terminal is crimped to the sleeve while surrounding the sleeve and a region behind the sleeve, out of the insulation coating. An inner peripheral side locking portion and an outer peripheral side locking portion are formed in a region covering the insulation coating, out of the crimping portion. The inner peripheral side locking portion is located more radially inward than a region surrounding the sleeve, out of the crimping portion. The outer peripheral side locking portion is locked to the inner peripheral side locking portion while being accommodated in a recess in an outer peripheral surface of the inner peripheral side locking portion.