Railway Freight Wagon Power Supply Below Container Deck

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Solution Overview

Problem

Existing wagon arrangements for railway freight trains with temperature-controlled containers face challenges in providing an uninterrupted energy supply during stationary and shunting operations, and accommodating large power supply units leads to height restrictions, limiting the space available for containers.

Innovation Solution

A wagon arrangement with a power supply unit housed below the container storage space, using a support structure that attaches to the frame without increasing the overall height, allowing for multiple power supply components and energy storage devices, and utilizing kinetic energy to charge batteries.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the power supply unit is housed below the container parking space, then uninterrupted power supply is achieved, but the support surfaces for the container floor must be arranged at a greater height below the container parking space, reducing the overall space for containers

Engineering Contradiction:
Improveuninterrupted power supplyVSAvoidspace for containers
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The support structure utilizes the vertical dimension by positioning the power supply unit in the space between the support plane and the container floor, effectively using the third dimension (height) to accommodate the power supply without reducing the horizontal loading area. The support surfaces are arranged on a support plane that is at a standard height, while the power supply unit is housed below this plane in the available vertical space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If the power supply unit is housed below the container parking space, then uninterrupted power supply is achieved, but the overall height of the wagon increases, limiting the types of containers that can be transported

Engineering Contradiction:
Improveuninterrupted power supplyVSAvoidoverall height of wagon
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The power supply unit is nested within the existing frame structure of the wagon, specifically utilizing the space between the support plane and the container floor. The support structure is integrated into the frame structure, with support surfaces provided on the frame structure at standard heights, allowing the power supply unit to be housed within the existing vertical envelope of the wagon without increasing the overall height.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Power

If multiple power supply components are installed to meet high energy requirements, then sufficient power for temperature-controlled containers is achieved, but the device complexity increases

Engineering Contradiction:
Improveenergy supply capacityVSAvoidpower supply unit structure
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The support structure serves multiple functions: it supports the container floor through support surfaces, houses the power supply unit components, and integrates with the frame structure. The same vertical space between the support plane and container floor is utilized to accommodate batteries, charging devices, and other power supply components, reducing the need for separate structural elements and simplifying the overall design.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Ensures uninterrupted power supply to containers during stationary and shunting operations without additional height restrictions, maintaining maximum loading capacity and accommodating multiple containers.

Implementation Method 1

The support structure is arranged in a gap between a support plane and a container floor, wherein the support structure is capable of accommodating the power supply unit. In particular, the support structure is arranged in a vertical extension between the support plane and the container floor.

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP4613601A1Carriage assembly for a railway freight train
Publication Date: 2025.09.10 SWS PS POWER SOLUTIONS GMBH
  • EP4613601A1 patent drawingFigure 1
  • EP4613601A1 patent drawingFigure 2a~2b
  • EP4613601A1 patent drawingFigure 3a~3b

AI summary

Shown and described is a wagon arrangement (1) for a railway freight train, comprising a wagon (3) which has a container storage space (13) for a container on its upper side, wherein the container storage space (13) has at least one support surface (29) for the container located in a support plane (31), wherein the support surface (29) is provided on a frame structure (7) of the wagon, and a power supply unit (5) for supplying power to a container loaded on the wagon (3), wherein the power supply unit (5) comprises a support structure (25) and at least one power supply component fastened to the support structure (25), wherein the support structure (25) is adapted to be detachably fastened to the frame structure (7) in such a way that the at least one power supply component is arranged below the support plane (31) and the power supply unit (5) does not protrude upwards beyond the support plane (31).