Solar Array Lead Assembly With Inline Fuses and No Combiner Box
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Solution Overview
Problem
Conventional solar power installations require a combiner box, which is cumbersome, prone to damage, and necessitates complex installation and maintenance, making it inefficient and costly.
Innovation Solution
A lead assembly comprising feeder cables and drop lines with joints and inline fuses, eliminating the need for a combiner box by directly connecting solar arrays to an inverter, using durable and adaptable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a combiner box is used to combine energy from solar arrays, then the system can function as required, but the device becomes cumbersome, prone to damage, and requires complex installation and maintenance
Solution Approach 1:
The patent extracts the combiner box from the system by implementing direct wire harness connections between solar arrays and the inverter. The wire harness integrates multiple functions (combining, protection, connection) into a single streamlined component, eliminating the separate combiner box and its associated complexity while maintaining system reliability.
Solution Approach 2:
The patent merges the functions of the combiner box into the wire harness assembly. The wire harness directly combines energy from multiple solar arrays and provides integrated protection features (fuses, breakers) and connection capabilities, consolidating what were previously separate components into a unified system.
2Reliability
If a combiner box is used to combine energy from solar arrays, then the system can function as required, but installation and maintenance become time-consuming and costly
Solution Approach 1:
By removing the combiner box from the system architecture, the patent eliminates the time-consuming tasks of installing, configuring, and maintaining this complex component. The direct wire harness connection simplifies the installation process and reduces ongoing maintenance requirements while preserving system reliability through integrated protection devices.
3Adaptability or versatility
If a combiner box is used, then energy combination is achieved, but the device is clumsy and requires extensive planning and skill for installation
Solution Approach 1:
The patent combines the energy combination function with the connection function in a single wire harness assembly. This integrated approach maintains system adaptability by allowing flexible configuration of solar arrays while dramatically improving installation ease through a simpler, more straightforward connection process that requires less planning and skill.
Data Source
AI summary
A lead assembly includes first and second feeder cables and multiple drop lines. The feeder cables each has a first or second diameter and a first or second polarity. Each of the feeder cables contains two or more joints. Each joint electrically couples one or more drop lines to the first or second feeder cable at a nexus. Each drop line has a diameter that is less than the first diameter and less than the second diameter. Each drop line coupled to the first feeder cable is configured to be electrically connected to a wire harness configured to electrically connect to an array of solar panels. Two or more of the droplines that are connected to the first feeder cable each includes an in line fuse disposed between the joint and the wire harness. Each joint has a mold enclosure configured to enclose at least a portion of the nexus.