Modular Power Distribution Unit Bridge Assembly
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Solution Overview
Problem
Conventional modular electric power distribution systems are cumbersome and expensive due to the need for multiple heavy-duty cables connecting each control module to a power source, leading to difficulties in installation, servicing, and reduced current flow due to heating of copper U-bends in bridge assemblies.
Innovation Solution
A modular electric power distribution system using pairs of power cables extending from a power source to an end module, with series-oriented conductors and bridge assemblies connecting adjacent modules, featuring heat-resistant spring clips to maintain contact pressure and prevent arcing, allowing efficient transmission of AC and DC power with varying voltages and amperages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy-duty power cables are used to connect each control module to the power source, then reliable power transmission is achieved, but installation complexity and cost increase significantly
Solution Approach 1:
The power distribution system is segmented into modular components: power source, control modules, and intermediate connection units. Each module can be independently connected and disconnected, transforming a complex full-system cable installation into simple modular plug-and-play connections. This resolves the contradiction by maintaining reliable power transmission through modular segments while dramatically reducing installation complexity.
Solution Approach 2:
Intermediate connection units serve as mediators between the power source and control modules. These units consolidate multiple cable connections and provide standardized interfaces, acting as intermediary components that simplify the connection process. The intermediaries handle the complexity of power distribution internally while presenting simple connection points externally, resolving the contradiction between reliable power transmission and installation simplicity.
2Adaptability or versatility
If multiple heavy-duty cables are connected to each control module, then all required power types are supplied, but servicing and inspection become difficult
Solution Approach 1:
The power distribution system is divided into independent modular units where each control module can be serviced separately. The modular design allows individual modules to be disconnected, inspected, and repaired without affecting other parts of the system. This resolves the contradiction by enabling comprehensive power type coverage through multiple modules while making servicing easy through modular isolation.
Solution Approach 2:
Individual control modules can be extracted from the system for separate servicing and inspection. The modular connection design allows modules to be easily removed and replaced without disturbing the entire power distribution system. This extraction capability resolves the contradiction by maintaining versatile power coverage while enabling easy individual module servicing.
3Reliability
If conventional copper U-bends are used in bridge assemblies, then current flow is achieved, but high amperage heating weakens the copper and reduces contact pressure
Solution Approach 1:
The bridge assembly uses composite construction combining copper conductors with heat-resistant ceramic or refractory materials. The copper provides excellent electrical conductivity for reliable current flow, while the heat-resistant materials provide thermal stability and maintain structural integrity at high temperatures. This composite approach resolves the contradiction by enabling reliable current flow while preventing temperature-induced weakening of the conductors.
Solution Approach 2:
The design converts the harmful thermal effect into a beneficial feature by using materials that thrive at high temperatures. The heat-resistant materials are specifically selected to operate optimally at the elevated temperatures generated by high amperage current flow. This transforms the previously harmful thermal environment into a controlled operating condition that the materials are designed to handle, resolving the contradiction between reliable current flow and temperature management.
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
The system simplifies the connection of power sources to multiple control modules, reduces installation costs, and maintains reliable current flow by using heat-resistant materials that prevent degradation of contact pressure even under high amperage conditions.
Implementation Method 1
heat-resistant springs which hold the copper conductors against contact elements on the modules so that current heating of the conductors does not impair the springs and does not reduce current flow
Implementation Method 2
copper conductors and heat-resistant springs which hold the copper conductors against contact elements on the modules
Implementation Method 3
High amperage current flowed through conventional bridge assemblies can heat and weaken the copper U-bends sufficiently to reduce contact pressure between the conductor strips and the contact members
Data Source
AI summary
A modular electric power distribution system transmits power between a power source and control modules for power consumers. The system includes a power distribution unit mounted on each module and bridge assemblies which connect adjacent distribution units.