Dry Transformer Strut Mounting for Railway Dynamic Loads
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Solution Overview
Problem
Current dry transformers assembled using separate core and coil parts are unable to withstand the typical dynamic loads encountered in transportation applications, particularly in railway environments.
Innovation Solution
The transformer is mechanically connected to an outer support structure via struts, which are made of electrically insulating material, allowing the coils and/or core and/or winding to absorb and receive forces in multiple directions, with features like comb-shaped struts and multiple leg configurations to enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the transformer uses separate core and coil parts assembled together, then the manufacturing process is simplified and assembly is easier, but the transformer cannot withstand the dynamic loads in transportation applications
Solution Approach 1:
The patent merges the core and coil parts into a single integrated assembly that is collectively secured to the support structure by struts. This combination allows the assembled transformer to withstand dynamic loads while maintaining the manufacturing simplicity of separate components, as the struts secure the entire assembly rather than requiring each component to be individually reinforced.
2Device complexity
If the transformer is secured using conventional mounting methods, then the structure remains simple, but it cannot master the required dynamic loads in x-y-z directions
Solution Approach 1:
The patent introduces struts that extend in multiple spatial dimensions to secure the transformer assembly. The struts are arranged to provide support in x-y-z directions, adding dimensional complexity to the mounting structure while maintaining overall structural simplicity. This multi-directional strut arrangement enables the transformer to withstand dynamic loads from various directions.
3Strength
If electrically conductive struts are used to secure the coil, then mechanical support is provided, but electrical insulation and personnel protection are compromised
Solution Approach 1:
The patent employs struts made of electrically insulating materials that provide both mechanical support and electrical insulation simultaneously. These composite or multi-functional struts maintain the structural integrity needed to withstand dynamic loads while preventing electrical conduction, thereby protecting personnel from electrical hazards.
Data Source
AI summary
A dry transformer to be mounted on or under or in a vessel or means of transportation, in particular a rail car or power car of a train or a ship, includes at least one core and at least one winding. The winding surrounds the core and the core and the winding are parts of a coil. The coil and/or the core and/or the winding are mechanically connected to an outer support structure by at least one strut. The transformer is able to master the required typical dynamic loads in at least one direction in transportation applications, such as railway applications.