Integrated Inverter Solar Cell Module Back Surface
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Solution Overview
Problem
The installation of solar cell modules is hindered by the separate manufacturing and installation of junction boxes and DC-AC inverters, leading to increased space and time requirements, as well as potential damage to the solar cell panels due to loose or separated output cables.
Innovation Solution
A solar cell module with an integrated type inverter positioned at the back surface, where the inverter includes a circuit unit and an inverter member connected to the solar cell panel, and a receiving unit with an open surface covered by the solar cell panel, simplifying the structure and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the junction box and DC-AC inverter are separately manufactured and installed, then each component can be optimized independently, but the installation space and installation time are increased
Solution Approach 1:
The patent combines the junction box and DC-AC inverter into a single integrated unit mounted on the rear surface of the solar cell panel. This merging eliminates the need for separate installation of two distinct components, thereby reducing installation time and space while maintaining the functional optimization of both components within the integrated structure
2Ease of repair
If the junction box and DC-AC inverter are separately installed with DC output cables connecting them, then each component can be independently replaced or maintained, but the installation complexity and space requirements are increased
Solution Approach 1:
The patent integrates the junction box and DC-AC inverter into a single unit, eliminating the need for DC output cables to connect separate components. This reduces installation complexity by removing cable routing and connection steps while maintaining component functionality within the integrated structure
3Reliability
If DC output cables are used to connect the junction box and DC-AC inverter, then electrical connection is achieved, but the volume and weight of the system are increased making installation difficult
Solution Approach 1:
The patent integrates the junction box and DC-AC inverter into a single unit, eliminating the need for DC output cables. This removes the weight and volume of the cables entirely while maintaining electrical connection through internal integration, thereby simplifying installation
4Reliability
If DC output cables are connected between the junction box and DC-AC inverter, then electrical connection is established, but the cables may be loosened or separated during transportation or use causing panel damage
Solution Approach 1:
The patent integrates the junction box and DC-AC inverter into a single unit, eliminating external DC output cables that could become loose or separated. The electrical connection is maintained through internal integration within the unified structure, ensuring stable and secure connection during transportation and use
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 installation complexity, minimizes the risk of panel damage, and improves productivity by integrating essential components, thus streamlining the installation process and enhancing structural stability.
Implementation Method 1
a solar cell that converts photovoltaic energy into electrical energy
Data Source
AI summary
A solar cell module is discussed. The solar cell module includes a solar cell panel and an integrated type inverter positioned at a back surface of the solar cell panel. The integrated type inverter includes a circuit unit having a terminal connected to the solar cell panel and an inverter member having a DC-AC inverter electrically connected to the terminal, and a receiving unit receiving the terminal and the DC-AC inverter, the receiving unit having at least one open surface. One of the open surfaces of the receiving unit is covered by the solar cell panel.