Rotatable Cable Junction Head for High-Power Direction Changes
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Solution Overview
Problem
Current electrical junction devices for aircraft are unable to efficiently manage changes in direction for high-power cables, particularly those with large cross-sectional areas like AWG4/0 gauge, due to their rigidity and inability to accommodate bends, which complicates installation and increases the risk of electrical breakdowns.
Innovation Solution
The development of an electrical junction device featuring two orientable wiring heads with L-shaped conductive elements and insulating elements, allowing for rotation between the heads to facilitate changes in cable direction without folding the cable, and incorporating a retention clip to prevent translational displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables with large cross-sectional area (AWG4/0 gauge or larger) are used to transport high currents, then the current transport capability is improved, but the cable stiffness and radius of curvature increase making installation difficult
Solution Approach 1:
The cable is divided into multiple sections that can be connected using the junction device. This allows each section to maintain manageable dimensions for installation while the overall system achieves the required current transport capability through parallel or series connections of multiple sections.
Solution Approach 2:
The junction device features a nested structure where a second cable section is inserted through the insulating element of the first cable section and connected to the conductive element. This nested arrangement allows compact connection while maintaining electrical continuity and mechanical flexibility.
2Reliability
If traditional rectilinear junction devices are used to connect cable sections, then electrical connection security is improved, but the ability to accommodate changes in direction is lost
Solution Approach 1:
The junction device incorporates rotational capability between the first and second cable sections. The conductive element can rotate relative to the insulating element, allowing the cable assembly to adapt to different routing directions while maintaining secure electrical connection. This dynamic feature enables changes in direction up to 360 degrees.
Solution Approach 2:
The device allows change of direction parameter to vary from 0 to 360 degrees while maintaining electrical connection integrity. The rotational joint enables the cable sections to be oriented at different angles without compromising the security of the electrical connection.
3Stability of the object's composition
If cable sections are connected with rigid junction devices, then connection stability is improved, but flexibility and adaptability to restricted spaces are reduced
Solution Approach 1:
The junction device provides rotational freedom between cable sections while maintaining stable electrical connection. The conductive element can rotate within the insulating element to accommodate different spatial configurations, enabling installation in restricted spaces with complex routing requirements while preserving connection stability.
Data Source
AI summary
An electrical joining device for connecting a first section and a second section of an electric cable, includes a first cabling head including an L-shaped first conductive element, mounted on the end of the first cable section, and a first insulating element surrounding the first conductive element; a second cabling head including an L-shaped second conductive element, mounted on the end of the second cable section, and a second insulating element covering the second conductive element, an arm of the second conductive element, covered by the second insulating element, being housed between the first conductive element and the first insulating element so as to permit a rotation between the first cabling head and the second cabling head.