Solar Cell Panel Electrical Shock Protection

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Solution Overview

Problem

Solar cell apparatuses are vulnerable to external electrical shocks such as static electricity and lightning strikes, which can cause damage and reduce their durability and reliability, especially in applications like vehicles and airplanes where these shocks are more prevalent.

Innovation Solution

Incorporating an electrical shock protective part between a protective substrate and a buffer layer on the solar cell panel, which can absorb static electricity or lightning strikes, and grounding the frame to ensure effective discharge of electrical shocks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If solar cell apparatus is used in harsh environments like vehicles and airplanes, then it can provide clean energy in mobile applications, but it becomes vulnerable to external electrical shocks such as static electricity and lightning strikes

Engineering Contradiction:
Improveapplicability to mobile applicationsVSAvoidresistance to electrical shocks
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an intermediary electrical shock protective part between the solar cell panel and the external environment. This protective part acts as a mediator that intercepts and dissipates electrical shocks before they reach the solar cell panel, thereby protecting the panel while maintaining its functionality in mobile applications

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the harmful electrical shocks into a beneficial protective mechanism. The electrical shock protective part is designed to attract and channel electrical shocks away from the solar cell panel, effectively using the harmful energy to trigger a protective response that safeguards the panel

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If protective measures are added to prevent electrical shock damage, then reliability improves, but device complexity increases

Engineering Contradiction:
Improveprotection from electrical shocksVSAvoidstructure with additional protective parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The electrical shock protective part is designed to perform multiple functions simultaneously: it protects against electrical shocks, maintains the structural integrity of the solar cell apparatus, and does not interfere with the photoelectric conversion function. This multi-functionality reduces the need for additional separate protective components

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the electrical shock protective part with the existing structural elements of the solar cell apparatus. The protective part is integrated into the frame or mounting structure, combining the protective function with the structural support function, thereby avoiding additional complexity

Inventive Principle:
Principle #5Merging (Combining)

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 significantly enhances the durability and reliability of solar cell apparatuses by protecting them from electrical shocks, ensuring continued functionality and efficiency in harsh environments like vehicles and airplanes.

Implementation Method 1

the electrical shock protective part absorbs static electricity or a lightening stroke to prevent the solar cell panel from being damaged

Methodology Applied
Scientific EffectElectrical shock absorption: Electrostatic Discharge

Implementation Method 2

A solar cell module for converting light energy into electric energy through the photoelectric transformation effect

Methodology Applied
Scientific EffectPhotoelectric transformation: Photovoltaic Effect

Data Source

PatentEP2535949B1Solar photovoltaic device and a conveying device comprising the same
Publication Date: 2020.04.22 LG INNOTEK CO LTD
  • EP2535949B1 patent drawingFigure 1~2
  • EP2535949B1 patent drawingFigure 3~4
  • EP2535949B1 patent drawingFigure 5~7

AI summary

Disclosed are a solar cell apparatus and a transportation including the same. The solar cell apparatus includes a solar cell panel, and an electrical shock protective part on the solar cell panel.