Securing Sleeve Positive Locking Elements High-Voltage Conductor
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Solution Overview
Problem
Securing sleeves for high-voltage electric conductor applications require complex assembly processes and high assembly efforts, especially with long conductor pieces, and existing solutions do not efficiently manage high shielding currents and electromagnetic compatibility.
Innovation Solution
A securing sleeve design featuring a securing section with a bottom between wings, equipped with complementary positive locking elements at the free ends, allowing for easy installation and secure locking in a closed state, which can be formed from conductive or non-conductive materials, and includes a profiled surface to prevent slipping, facilitating efficient shielding and electromagnetic compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cylindrical securing sleeve is pushed onto long conductor pieces, then the shielding current conduction is maintained, but the assembly effort increases significantly
Solution Approach 1:
The securing sleeve is divided into multiple segments that can be assembled separately and then connected together. This allows the sleeve to be installed in sections rather than as one large piece, significantly reducing the assembly effort for long conductor pieces while maintaining continuous shielding current conduction across all segments
Solution Approach 2:
The securing sleeve is designed to be inserted over the conductor shield in a telescopic manner, with segments nesting within each other during assembly. This nested assembly approach allows for easier installation on long conductors by progressively building up the complete sleeve structure
2Ease of operation
If a securing sleeve is designed to be pushed over the shield, then the contacting is simplified, but additional process steps are required before final crimping
Solution Approach 1:
The insertion and securing functions are merged into a single integrated operation. The securing sleeve incorporates self-centering features and guiding elements that allow the shield to be automatically positioned and secured in one continuous motion, eliminating the need for separate alignment and positioning steps before final crimping
3Reliability
If high shielding currents are conducted through the securing device, then the electromagnetic shielding is effective, but transition resistances increase
Solution Approach 1:
The contact surface area and material properties at the transition zones are optimized to reduce electrical resistance. The securing sleeve incorporates conductive materials with appropriate conductivity parameters and designs enlarged contact surfaces at critical interfaces, allowing high shielding currents to flow with minimal energy loss while maintaining effective electromagnetic shielding
Data Source
AI summary
A securing sleeve for securing a shield of an electric conductor to a shielding contact includes a securing section having a bottom disposed between a pair of wings. The bottom supporting the electric conductor. The wings are spaced apart at a free end of each of the wings distal from the bottom by a slot extending in an axial direction in an open state of the securing sleeve. The wings have a plurality of complementary positive locking element at the free ends that secure the securing sleeve in a circumferential direction in a closed state.