Modular Surge Protection with Automatic Failover Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional surge protection devices (SPDs) in wireless communications systems lack redundancy, configurability, and failover mechanisms, leading to potential equipment damage during component failure and requiring manual replacement, which disrupts service and is inefficient for diverse system architectures.
Innovation Solution
A modular surge protection device (SPD) with interchangeable modules and automatic switching mechanisms, including a spring-loaded blade connector activated by a fusible link, allows for failover configurations (fail-open or fail-closed) and redundant protection, minimizing conductor lengths to enhance voltage protection rating (VPR) and support flexible deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fixed topology SPD designs are used, then the device structure is simple, but the system lacks redundancy and fails to provide continuous protection during component failure
Solution Approach 1:
The SPD is divided into modular components including a base unit and interchangeable suppression modules. Each module contains specific suppression components (MOVs, GDTs, SASDs) that can be independently replaced. This segmentation enables redundancy configurations where backup modules can take over when primary modules fail, ensuring continuous protection while maintaining manageable complexity through standardized interfaces.
Solution Approach 2:
The SPD incorporates dynamic reconfiguration capabilities through automatic switching mechanisms that activate upon detection of suppression component failure. The system can dynamically switch between different suppression paths or activate backup components without manual intervention, transforming a static fixed topology into a dynamic adaptive system that maintains protection continuity.
2Productivity
If manual replacement of failed SPD modules is required, then the device structure is simple, but service downtime increases and operational efficiency decreases
Solution Approach 1:
The SPD system performs self-diagnosis and self-repair through automatic failure detection and module switching mechanisms. When a suppression component fails, the system automatically detects the failure condition and switches to backup modules or alternative protection paths without requiring manual intervention. This self-service capability eliminates service downtime and maintains continuous protection while simplifying maintenance to simple module interchangeability.
3Reliability
If multiple distinct SPD modules are installed for different protection strategies, then the protection coverage is comprehensive, but the form factor increases and conductor lengths are extended
Solution Approach 1:
The SPD base unit is designed as a universal platform that can accommodate multiple types of suppression modules through standardized interfaces. A single base unit can support different module configurations (single module, dual modules, redundant modules) to provide various protection strategies including fail-open and fail-closed behaviors. This multi-functionality eliminates the need for multiple separate SPD devices, reducing overall form factor and minimizing conductor lengths between suppression elements and protected equipment.
4Adaptability or versatility
If configurable fail-open or fail-closed behaviors are required, then the system adaptability is improved, but additional specialized modules are needed increasing complexity
Solution Approach 1:
The SPD incorporates dynamic reconfiguration capabilities through automatic switching mechanisms that activate upon detection of suppression component failure. The system can dynamically switch between different suppression paths or activate backup components without manual intervention, transforming a static fixed topology into a dynamic adaptive system that maintains protection continuity.
Solution Approach 2:
The SPD base unit is designed as a universal platform that can accommodate multiple types of suppression modules through standardized interfaces. A single base unit can support different module configurations (single module, dual modules, redundant modules) to provide various protection strategies including fail-open and fail-closed behaviors. This multi-functionality eliminates the need for multiple separate SPD devices, reducing overall form factor and minimizing conductor lengths between suppression elements and protected equipment.
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 SPD maintains continuous surge protection during component failure, reduces downtime, and supports flexible deployment across various wireless communication infrastructures by enabling automatic reconfiguration and redundancy without manual intervention.
Implementation Method 1
The switch comprises a spring-loaded blade connector released by melting of a fusible link
Data Source
AI summary
A surge protection device (SPD) for protecting electrical circuits from transient overvoltage events is disclosed. The surge protection device includes an SPD base comprising a set of terminals and a set of slots electrically coupled to the terminals, and an SPD module comprising a housing, a set of pins configured to engage the slots, and a printed circuit board (PCB) bus contained within the housing. The PCB bus includes a first suppression circuit path and a second suppression circuit path. A suppression component is coupled to the first suppression circuit path. A switch is configured to automatically reconfigure the SPD from the first suppression circuit path to the second suppression circuit path upon failure of the suppression component. The SPD module may include a user-operable switch or jumper configured to select between a fail-open mode and a fail-closed mode. Redundant surge protection modules may be connected through a dual SPD base.