Rail-Guided Shore Power Coupling for Quay Wall Obstacles

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Solution Overview

Problem

Existing shore power supply devices for ships are not adaptable to varying ship sizes and mooring positions, often obstructed by mooring apparatuses, and lack flexibility in movement along quay walls.

Innovation Solution

A movable shore-based coupling unit with a travelling mechanism and parallel tracks, allowing the unit to overlap mooring apparatuses and navigate around obstacles, combined with open channels and line dividers for secure power line routing, ensuring easy installation and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the shore-based coupling unit is made movable to adapt to different ship positions, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveadaptability to different ship positionsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The coupling unit is designed with movable components including a travelling mechanism with wheels that can move along the quay wall, and adjustable arms that can position the coupling point at different heights and locations. This dynamic structure allows the same device to adapt to various ship sizes and mooring positions while maintaining a relatively simple overall design.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the coupling unit is positioned close to the ship for connection, then connection efficiency is improved, but obstruction by mooring apparatuses increases

Engineering Contradiction:
Improveconnection efficiencyVSAvoidobstruction by mooring apparatuses
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The coupling unit utilizes vertical space by positioning itself above the mooring apparatuses (bollards) on the quay wall. The travelling mechanism operates on an elevated track that clears the mooring apparatuses, allowing the coupling unit to reach close to the ship's connection point without being obstructed by the bollards below.

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

3Ease of manufacture

If the rail is arranged on the waterway side of the quay wall, then ease of installation is improved, but protection of power supply line decreases

Engineering Contradiction:
Improveease of installationVSAvoidprotection of power supply line
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

A protective channel is introduced as an intermediary structure between the power supply line and the external environment. The power supply line is routed through this channel that extends from the quay wall interior to the rail location, providing mechanical protection while allowing the rail to be positioned on the waterway side for easy installation and access.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250333155A1Device for connecting a ship to a shore-based power supply network
Publication Date: 2025.10.30 STEMMANN TECHN
  • US20250333155A1 patent drawing
  • US20250333155A1 patent drawing

AI summary

The invention relates to a device 1 for connecting a ship to a shore-based power supply network, wherein a shore-based coupling unit 2 for connection to a cable-bound ship-based plug connector is movable in a rail-guided manner and is connected via at least one power supply line 16, 17 to the shore-based power supply network, wherein the coupling unit 2 is arranged on a travelling mechanism 4 whose wheels 5, 6 are arranged side by side in two tracks 7, 8, wherein one track 7 is rail-bound with respect to a rail 9 which is arranged on the waterway side on a vertical side a quay wall 3, wherein the travelling mechanism 4 overlaps mooring apparatuses 11 projecting from a top side 10 of the quay wall 3, such that the second track 8 is arranged on a side of the mooring apparatuses 11 remote from the water.