Solar Panel Junction Box Segmentation for Maintenance
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Solution Overview
Problem
Conventional solar photovoltaic assemblies have high maintenance costs due to integral junction boxes, where a single malfunction requires replacing the entire unit, and are costly due to extensive cable usage for connections between bulky solar panels.
Innovation Solution
The design introduces fragmental junction box sets with separate input and output junction boxes, each with a diode, electric connection bodies, and foils, allowing for modular connections and reduced cable length, enabling easier maintenance and cost reduction by allowing individual component replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If integral junction boxes are used to connect solar panels, then the connection structure is simple, but maintenance cost increases and operational efficiency decreases when components fail
Solution Approach 1:
The junction box is divided into multiple independent connection assemblies, each capable of functioning separately. This segmentation allows individual faulty assemblies to be replaced without replacing the entire junction box, reducing maintenance costs and improving ease of repair while maintaining a relatively simple overall structure.
2Adaptability or versatility
If integral junction boxes with multiple connection assemblies are used, then connection functionality is complete, but maintenance requires replacing the entire unit when any component fails
Solution Approach 1:
The junction box is divided into multiple independent connection assemblies, each capable of functioning separately. This segmentation allows individual faulty assemblies to be replaced without replacing the entire junction box, reducing maintenance costs and improving ease of repair while maintaining a relatively simple overall structure.
3Reliability
If conventional cable connections are used between bulky solar panels, then connection reliability is ensured, but cable cost and system volume increase
Solution Approach 1:
The patent transitions from three-dimensional cable connections to two-dimensional foil splicing connections. By using thin foils that can be overlapped and bonded between panels, the system achieves reliable electrical connection with significantly reduced material volume and cost compared to traditional bulky cable assemblies.
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
This configuration reduces maintenance costs and operational expenses by allowing for the replacement of individual faulty components within the solar photovoltaic assembly, while minimizing cable usage and overall system volume.
Implementation Method 1
Solar electrical energy generation technology is a technology of converting the solar energy into electric energy by utilization of solar panels, based on principle of the photovoltaic effect
Implementation Method 2
The input junction box includes a first diode, a first electric connection body connected to the first diode
Data Source
AI summary
The present invention relates to a solar photovoltaic assembly. The solar photovoltaic assembly, according to the invention, includes a solar panel, an input junction box, and an output junction box. The input junction box includes a first diode, a first electric connection body connected to the first diode, and first foils respectively spliced with the first electric connection body. The input junction box is positioned on a side of the second solar panel. The output junction box includes a second diode, a second electric connection body connected to the second diode, and second foils respectively spliced with the second electric connection body. The output second junction box positioned on another side of the solar panel. The input junction box mechanically and electrically connects to a second output junction box on a connecting solar panel using a cable.