Cable Cushion Layer Mitigates Braided Shield Wire Breaks
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Solution Overview
Problem
Conventional cables used in industrial robots experience wire breaks in their braided shields due to repeated bending, leading to a degradation in shielding functionality.
Innovation Solution
A cable design featuring a cushion layer composed of braided linear shape fiber yarns between the cable core and the braided shield, which mitigates lateral pressure and prevents wire breaks by allowing the cushion layer to follow the braided shield's movement, thereby reducing abrasion and maintaining the integrity of the braided shield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cable structure without cushion layer is used, then the cable structure is simple, but wire breaks occur in the braided shield due to repeated bending
Solution Approach 1:
A cushion layer made of linear shape fiber yarns is introduced as an intermediary component between the cable core and the braided shield. This cushion layer absorbs lateral pressure and follows the movement of the braided shield during repeated bending, preventing wire breaks while maintaining a relatively simple overall cable structure.
Solution Approach 2:
The cushion layer is positioned in advance between the cable core and braided shield to provide protective cushioning before bending stresses occur. This pre-positioned cushioning layer mitigates lateral pressure and prevents wire breaks during subsequent repeated bending operations.
2Ease of operation
If repeated bending is performed on the cable, then the cable flexibility is maintained, but wire breaks occur in the braided shield
Solution Approach 1:
The cushion layer acts as a mediator that follows the movement of the braided shield during bending operations. This allows the cable to maintain flexibility for repeated bending while the cushion layer protects the braided shield from lateral pressure that would cause wire breaks.
Solution Approach 2:
The cushion layer made of linear shape fiber yarns changes its physical parameters (shape, position) to follow the movement of the braided shield during bending. This dynamic adaptation allows the cable to maintain flexibility while protecting the braided shield integrity.
Data Source
AI summary
A cable is composed of a cable core including one or more electric wires, a braided shield covering a periphery of the cable core and including braided metal wires, a sheath covering a periphery of the braided shield, and a cushion layer provided between the cable core and the braided shield. The cushion layer is composed of a braid including braided linear shape fiber yarns.