Insulator Sleeve Mounting Sleeve for Bend-Stress Relief
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Solution Overview
Problem
Existing arrangements for attaching insulator sleeves to electrical conductors often result in continuous adhesion, leading to material stresses and potential damage when the conductors are bent to adapt to different spatial conditions, particularly at narrow radii, compromising electrical safety and functionality.
Innovation Solution
A mounting sheath with a receptacle opening and holding pins that securely attach the insulator sleeve to the conductor, providing a positive-locking, releasable connection without adhering, allowing for flexible assembly and stress relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insulator sleeve adheres continuously to the electrical conductor, then the insulation is maintained, but material stresses occur during bending which can damage the conductor and/or insulator sleeve
Solution Approach 1:
The mounting sheath is divided into a first shell and a second shell that can be separated from each other. The insulator sleeve is attached to the first shell, while the second shell provides protection without continuous adhesion to the conductor, allowing bending without stress concentration.
Solution Approach 2:
The mounting sheath acts as an intermediary component between the insulator sleeve and the electrical conductor. It provides the positive-locking connection to secure the insulator sleeve while allowing the conductor to move independently during bending, preventing stress transmission.
2Reliability
If the insulator sleeve is securely attached to the conductor, then electrical safety is improved, but the assembly becomes difficult to adapt to different spatial conditions
Solution Approach 1:
The mounting sheath is segmented into two separable shells, allowing the insulator sleeve to be securely attached to the first shell while the second shell can be removed or repositioned to accommodate different spatial arrangements and bending requirements.
Solution Approach 2:
The mounting sheath transitions from a fixed continuous structure to a dynamic separable structure. The two shells can be separated to allow the conductor to be bent and repositioned, then reassembled to maintain electrical safety, providing adaptability to different spatial conditions.
3Device complexity
If a continuous adhesion between insulator sleeve and conductor is used, then the structure is simple, but narrow bending radii cause material stresses that can damage the components
Solution Approach 1:
The mounting sheath is divided into two shells that can be separated, replacing the simple but problematic continuous adhesion structure. This segmentation allows the conductor to bend without stress while maintaining a relatively simple overall structure.
Solution Approach 2:
The continuous adhesion function is extracted and replaced by a positive-locking connection through holding pins in the first shell, combined with the protective coverage of the second shell. This extraction eliminates the harmful stress transmission while maintaining structural simplicity.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The document discloses an arrangement (1) for attaching an insulator sheath (4), which is able to receive an electrical conductor (6), to the electrical conductor (6), wherein the arrangement (1) comprises the insulator sheath (4) and a mounting sleeve (2), wherein an end piece (8) of the insulator sheath (4) can be received in a receptacle opening (12) of the mounting sleeve (2), and wherein at least one holding pin (7) is provided, which penetrates the insulator sheath (4) and which fixes the mounting sleeve (2) unmovably along a length direction (18) of the insulator sheath (4).