Rail Vehicle Cable Tray Assembly for Modular Wiring Access
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Solution Overview
Problem
The installation and maintenance of cables and electrical equipment in rail vehicles are cumbersome due to difficulty in accessing cabling or electrical equipment for modifications or changes in location.
Innovation Solution
A cable tray assembly with a main tray and an auxiliary tray, where the auxiliary tray is attached to the main tray in a releasable manner, allowing preassembly of wiring and equipment before installation, and featuring multiple channels for separating cables to enhance electromagnetic compatibility, with plastically deformable bridges for adaptable orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cables and electrical equipment are installed directly in the vehicle body, then the installation is complete, but it becomes difficult to access cabling or electrical equipment for maintenance or modifications
Solution Approach 1:
The cable tray assembly is divided into modular components including main tray sections, auxiliary trays, and detachable legs that can be independently assembled and disassembled. This segmentation allows easy access to cables and equipment while maintaining a structured installation system.
Solution Approach 2:
The cable tray system incorporates detachable and reconfigurable components that allow dynamic adjustment of the installation configuration. Legs can be removed and reattached at different positions, enabling easy maintenance access and future modifications without complete disassembly.
2Adaptability or versatility
If electrical equipment location needs to be changed or new equipment added, then modifications are required, but the process is particularly difficult with fixed installations
Solution Approach 1:
The cable tray system is pre-configured with attachment portions and detachable legs at strategic locations during manufacturing, enabling quick future modifications. Connection elements are pre-positioned to facilitate rapid equipment relocation without requiring new installation holes or structural modifications.
Solution Approach 2:
The attachment portions and connection elements are designed with universal compatibility across different tray sections and equipment types. This allows the same attachment mechanism to serve multiple functions including initial installation, equipment relocation, and addition of new equipment at various positions along the cable tray.
3Object-affected harmful factors
If multiple cable bundles need to be separated for electromagnetic compatibility, then multiple channels are required, but this increases the structural complexity
Solution Approach 1:
The cable tray is divided into multiple separate channels or compartments within the main tray structure. This segmentation physically separates different cable bundles (power, data, control) to prevent electromagnetic interference while maintaining a unified tray assembly that does not require multiple separate components.
Data Source
Figure 1~2
Figure 3~4
AI summary
A cable tray assembly (22) for installing one or more cable harnesses (14, 16, 18) in a rail vehicle body (12), comprises a main tray (24) having at least a first cable channel (26) extending in a longitudinal direction (100). The cable tray assembly (22) further comprises an auxiliary tray (44, 144) provided with an auxiliary tray plate (46, 146) for holding one or more pieces of electrical equipment (20, 120), the auxiliary tray plate (46, 146) facing the main tray (24) at a distance from the main tray (24), and with legs (50, 150) extending from the auxiliary tray plate (46, 146) towards the main tray (24), the legs (50, 150) being attached to attachment portions (52) of the main tray in a releasable manner.