Train Cable Support Decouples Mechanical Stress From Electrical Connection
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Solution Overview
Problem
Existing wagon transition systems for guiding supply cables between moving carriages, such as in trains, face mechanical stress issues at connection points, leading to potential detachment or damage of the supply cables due to mechanical forces, which complicates the design and increases manufacturing costs.
Innovation Solution
A wagon transition system featuring a rigid support part with a separate connection point for the supply cable, where the cable is attached via a clamping part that absorbs mechanical forces, keeping the connection point free from mechanical stress, and utilizing a spiral cable design to distribute torsional forces across multiple windings, eliminating the need for additional holding means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the supply cable is attached directly to the end cap using a cable lug, then the electrical connection is established, but mechanical forces occur at the connection points during operation that can loosen or detach the connection or damage the cable
Solution Approach 1:
The system divides the connection structure into separate functional elements: the end cap for electrical connection and the support bracket for mechanical support. This segmentation allows each component to perform its specific function without being subjected to conflicting mechanical and electrical requirements, thereby improving connection reliability while maintaining adequate strength.
Solution Approach 2:
The support bracket acts as an intermediary element between the end cap and the supply cable. It provides a separate mounting point for the cable that absorbs mechanical forces, preventing these forces from being transmitted to the electrical connection at the end cap. This mediator structure resolves the contradiction by decoupling mechanical and electrical functions.
2Reliability
If clamping elements are used to firmly fix the supply cable, then mechanical stress at connection points is minimized, but the design becomes more complex and manufacturing costs increase
Solution Approach 1:
The support bracket combines multiple functions into a single component: it provides mechanical support for the supply cable, serves as a mounting structure for the end cap, and acts as a force-absorbing element. This merging of functions reduces the need for additional separate clamping elements, thereby improving reliability while reducing system complexity and manufacturing costs.
Solution Approach 2:
The support bracket is designed as a multi-functional element that simultaneously performs mechanical support, cable positioning, and structural connection functions. This universal component eliminates the need for specialized clamping elements, reducing overall system complexity while maintaining high connection reliability through its integrated design.
3Stability of the object's composition
If a rigid support structure is used to hold the supply cable, then mechanical stability is improved, but the system loses flexibility for relative movement between carriages
Solution Approach 1:
The support bracket is designed with inherent flexibility through its geometric configuration and material selection, allowing it to deform elastically under mechanical loads. This flexible rigid structure maintains mechanical stability for cable support while accommodating the relative movements between carriages, thus preserving system adaptability without sacrificing structural integrity.
Solution Approach 2:
The support bracket transitions from a purely static rigid structure to a dynamic element that can adapt its configuration during operation. It provides stable support for the supply cable while allowing controlled movements to accommodate carriage relative positions, thereby achieving both mechanical stability and operational flexibility through dynamic design characteristics.
Data Source
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AI summary
The invention relates to a car connection system (2) for guiding at least one supply cable (4) between two cars, comprising a support part (8) for mounting the supply cable (4). The support part (8) has a separate connection point (7) to which the supply cable (4) can be electrically connected, and the support part (8) is secured to an end closure (10). The car connection system (2) is characterized in that the supply cable (4) is designed as a spiral cable and extends about a cable longitudinal axis (K) in a helical manner, the support part (8) is rigid, and a clamping part (12) is secured to the support part (8) in order to relieve tension and mechanically support the supply cable (8).