Arrest-Type Lightning Protection Device for Irregular Structures
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Solution Overview
Problem
Conventional lightning protection methods, such as the protruding rod-type lightning rod, are ineffective in preventing lightning strikes, and existing thunderbolt arrest-type devices do not adequately adapt to varying structures and shapes of protected bodies, leaving some unprotected.
Innovation Solution
A thunderbolt arrest-type lightning protection device comprising a charged body made of conductive material covering the protected body, an electrical insulation layer, and a capacitor with a first electrode connected to the ground and a second electrode opposed via the insulation layer, which distributes negative charges to prevent upward streamers and arrest lightning strikes, allowing for flexible installation and configuration with multiple capacitors of varying capacities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional protruding rod-type lightning rod is used, then the structure is simple and easy to install, but it cannot prevent lightning strikes and only provides limited protection
Solution Approach 1:
The lightning protection system is segmented into multiple functional components: a charged body for charge accumulation, an electrical insulation layer for isolation, and a capacitor for charge storage and distribution. This segmentation allows each component to perform its specific function effectively, improving overall protection reliability while maintaining reasonable complexity
Solution Approach 2:
The system performs preliminary action by accumulating opposite charges on the charged body before lightning strikes occur. The capacitor pre-stores electrical energy and the insulation layer pre-establishes charge isolation, creating a protective charge distribution in advance that prevents upward streamers from forming, thereby arresting lightning before it can strike the protected body
2Adaptability or versatility
If a fixed circular protection area is created by a lightning protection device, then the device structure is simple, but it cannot adapt to protected bodies of varying structures and shapes
Solution Approach 1:
The system employs dynamic adaptability where the charged body can be configured in different shapes and positions to match the protected body's geometry. The capacitor's charge distribution dynamically adjusts to the spatial configuration, allowing the protection area to conform to various structures such as buildings, equipment, or irregular shapes rather than being limited to a fixed circular pattern
Solution Approach 2:
The lightning protection device achieves universality by using the same core components (charged body, insulation layer, capacitor) to protect various types of structures. The system can be adapted to protect buildings, equipment, antennas, or any other protected body by adjusting the charged body's configuration, making it a multi-functional solution applicable to diverse protection scenarios
3Reliability
If the charged body is electrically connected to the ground, then charge distribution is simplified, but the protected body cannot be fully insulated from ground potential variations
Solution Approach 1:
The electrical insulation layer serves as an intermediary between the charged body and the ground/protected body. It allows the charged body to accumulate opposite charges reliably while simultaneously isolating the protected body from ground potential variations. This mediator enables charge accumulation without direct electrical connection, preventing ground potential interference from affecting the protected body while maintaining charge distribution reliability
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 effectively suppresses lightning strikes on protected bodies of any shape or size by creating a comprehensive protection area, preventing damage from lightning strikes and accommodating large or irregularly shaped structures.
Implementation Method 1
a capacitor installed on the ground and constituted by a first electrode body electrically connected to the ground and a second electrode body opposed to the first electrode body via the electrical insulation layer and storing electric charge by an electrostatic capacity between the first electrode body and the second electrode body
Data Source
AI summary
Provided is a thunderbolt arrest-type lightning protection device that has a protected area formed to match a structure and a shape of a protected body being protected from thunderbolts, and is capable of effectively protecting the entire protected body from thunderbolts.The device is configured by: a charged body 2 formed of a conductive material provided to cover a protected body B installed on a ground G; an electrical insulation layer 3 that holds the charged body 2 in an electrically-insulated state with respect to the ground G and the protected body B; a capacitor 4 installed on the ground G, and stores an electrical charge by an electrostatic capacity with the ground; and a conductor 5 that electrically connects the charged body 2 and a second electrode body 4b.