Axial Diode Bridging Socket for Solar Panel Shading Protection
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Solution Overview
Problem
Conventional solar modules face issues with partial shading leading to reduced output and potential damage due to uneven irradiation, requiring complex bypass diode systems that are material-intensive and difficult to assemble.
Innovation Solution
A solar panel design featuring an axial diode held by an insulating diode holder, directly connecting electrical conductors to prevent damage by creating a short circuit when voltage falls below a limit, with a simplified bridging box that minimizes conductor lengths and avoids heat-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bypass diodes are used with complex connection systems, then shading damage is prevented, but device complexity and material usage increase
Solution Approach 1:
The solar module is divided into multiple independently bridgable cell groups, each capable of having its own bypass diode installed separately. This segmentation allows the bypass function to be implemented in a modular way, reducing overall system complexity while maintaining protection capabilities.
Solution Approach 2:
The bypass diode connection system is extracted from the conventional complex junction box design and simplified to direct connections at the cell group level. This extraction removes unnecessary intermediate connection elements and reduces device complexity while preserving the essential bypass function.
2Reliability
If conventional bypass diode systems are implemented, then shading damage is prevented, but material usage increases
Solution Approach 1:
The bypass diode system is extracted from the conventional complex junction box design and simplified to direct connections at the cell group level. This extraction removes unnecessary intermediate connection elements and reduces material usage.
Solution Approach 2:
Bypass diodes are implemented locally at the cell group level rather than through a centralized complex connection system. This local quality approach uses materials only where needed, minimizing overall material consumption while maintaining effective protection.
3Reliability
If multiple axial diodes are arranged in a bridging box, then comprehensive protection is achieved, but heat generation increases
Solution Approach 1:
The bridging box is segmented into separate compartments or mounting areas for individual axial diodes. This segmentation distributes the heat generation from multiple diodes across different locations, preventing heat accumulation and allowing better thermal management while maintaining comprehensive protection coverage.
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 solution simplifies the assembly of bypass diodes, reduces material usage, and prevents damage from shading by directly connecting conductors with axial diodes, ensuring efficient energy production while minimizing heat-related stress.
Implementation Method 1
an axial diode with two terminals, the axial diode being held in a contact position by means of the diode holder, with the one electrical conductor of the solar module is directly contacted with one terminal and the other electrical conductor of the solar module is directly contacted with the other terminal, so that the two electrical conductors are electrically connected to one another by means of the axial diode
Data Source
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AI summary
The invention relates to a solar panel, comprising: a solar module (4) having at least two electrical lines (10a, 10b) and an electrical bridging socket (6), having an electrically isolating diode holder (22) and an axial diode (14) having two connections (12a, 12b), wherein the axial diode (14) is held in a contact position by means of the diode holder (22), wherein the one electrical line (10a) of the solar module (4) is in immediate contact with the one connection (12a) in the contact position and the other electrical line (10b) of the solar module (4) is in immediate contact with the other connection (12b) such that the two electrical lines (10a, 10b) are electrically connected to one another by means of the axial diode (14). The invention also relates to a method for producing a solar panel and a bridging socket.