Busway Joint Assembly with Interference Fit Conductors
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Solution Overview
Problem
Existing busway systems face challenges in providing a secure and efficient electrical connection between busway sections, particularly in maintaining mechanical and electrical integrity while allowing for flexible installation of plug-in devices along the length of busway sections.
Innovation Solution
A busway assembly with elongated sections and joint assemblies that include insulators and conductors held in aligned channels, using interference fits and tapered slots to ensure secure electrical connections and mechanical stability, along with a joint cover for additional security and ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional busway joints are used to connect busway sections, then mechanical connection is achieved, but electrical connection reliability and mechanical stability are insufficient
Solution Approach 1:
The joint assembly merges mechanical connection and electrical connection functions into a single integrated structure. The housing simultaneously provides mechanical support and contains the conductors for electrical connection, eliminating the need for separate mechanical joints and electrical connectors, thus improving reliability while managing complexity.
Solution Approach 2:
The joint assembly acts as an intermediary component between adjacent busway sections, providing both mechanical coupling and electrical continuity. The conductors within the housing mediate the electrical connection between sections, while the housing structure mediates the mechanical connection, ensuring both reliability aspects are addressed.
2Stability of the object's composition
If busway sections are connected with joints, then electrical connection is established, but mechanical stability and alignment precision deteriorate
Solution Approach 1:
The housing design creates an equipotential mechanical interface between busway sections through precise mating surfaces and alignment features. The conductors are positioned to ensure uniform electrical potential distribution across the joint, while the housing structure provides equipotential mechanical support, enhancing both stability and alignment precision.
Solution Approach 2:
The joint assembly modifies the mechanical and electrical parameters at the connection interface. The housing changes the mechanical stiffness and alignment tolerance parameters, while the conductors change the electrical contact resistance and conductivity parameters, optimizing both stability and precision.
3Adaptability or versatility
If plug-in devices are installed along busway sections, then flexibility is improved, but installation complexity and time increase
Solution Approach 1:
The busway system is segmented into modular sections with standardized joints, allowing plug-in devices to be installed at any section. The joint assembly itself is a segmented design with separate housing and conductor components, enabling pre-assembly and pre-testing, which reduces on-site installation time while maintaining flexibility.
Solution Approach 2:
The joint assemblies can be pre-assembled and pre-configured with conductors before field installation. This preliminary action allows for quality control and alignment verification to be performed during manufacturing rather than during installation, reducing on-site installation time while maintaining the flexibility to install plug-in devices anywhere along the busway.
Data Source
AI summary
A busway assembly includes first and second busway sections and a joint assembly connecting the first and second sections. Each busway section includes a housing including first and second opposing side portions. Each busway section includes a first insulator held in the first side portion and a second insulator held in the second side portion. The first and second insulators each hold one or more bus bar conductors. The joint assembly includes first and second connected joint housings and plurality of joint conductors held in the first and second housings. A first exposed portion of each joint conductor extends out of the first housing and is electrically connected with one of the bus bar conductors of the first busway section. A second exposed portion of each joint conductor extends out of the second housing and is electrically connected with one of the bus bar conductors of the second busway section.