High-Voltage Connection Device for Railway Vehicle Bulkheads
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Solution Overview
Problem
High voltage connection devices for transport vehicles, particularly railway vehicles, face challenges with inflexible and bulky cables that are difficult to assemble and disassemble across partitions, requiring improved practicality and compactness.
Innovation Solution
A high voltage connection device with independently mountable boxes on either side of a partition, featuring parallel cable arrangement and insulating sleeves for conductive elements, allowing for reversible and watertight connections that do not depend on the flexibility of the cables, thus maintaining a compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high-voltage cable is drilled through a partition wall, then electrical connection between compartments is achieved, but the cable becomes bulky and difficult to install/remove
Solution Approach 1:
The connection device is divided into a first box mounted on one side of the partition and a second box mounted on the other side, with conductive members connecting the two boxes. This segmentation allows independent mounting and removal of each box, eliminating the difficulty of installing and removing bulky cables through the partition while maintaining reliable electrical connection.
2Reliability
If large-section conductors are used for high voltage, then adequate electrical insulation is ensured, but the cable becomes inflexible with minimal bending radius
Solution Approach 1:
By segmenting the connection into two separate boxes mounted on opposite sides of the partition with conductive members connecting them, the system eliminates the need for long, inflexible high-voltage cables. The conductive members can be shorter and more manageable, improving flexibility while maintaining the required electrical insulation through proper spacing and mounting.
3Adaptability or versatility
If cables are run through partition walls, then power and loads can be connected across compartments, but the connection system becomes bulky and less compact
Solution Approach 1:
Instead of running cables through the partition wall in a straight line, the connection device mounts boxes on both sides of the partition with conductive members extending laterally. This dimensional change allows the connection system to be more compact and better integrated into the vehicle body structure, while still achieving cross-compartment electrical connection.
Data Source
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AI summary
This high-voltage connection device (100), for passing through a bulkhead (60) of the body (6) of a transport vehicle, comprises: - at least one first connection terminal (142A), electrically connected to a respective phase of a first electrical device, - at least one second connection terminal (142B), electrically connected to a respective phase of a second electrical device, - at least one conductive member (160), each first terminal being electrically connected to a respective second terminal by a respective conductive member.Advantageously, the connection device comprises: - a mounting plate (110), configured to be fixed to the partition and to at least partially close an opening (68) made in the partition, which defines a median plane (P110) and which includes two mounting areas (112A, 112B) located on either side of the median plane and into which opens a passage (118) through the mounting plate, - a first housing (130), which receives each first terminal and which is mounted on one of the two mounting areas, - a second housing (132), which receives each second terminal and which is mounted on the other of the two mounting areas, while each conductor member is housed in the passage.