Modular Pyrotechnic Circuit Protection for Fast Fault Isolation
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Solution Overview
Problem
Conventional pyrotechnic circuit protection devices are limited to low voltage and current applications, require external actuation sources and monitoring systems, are expensive, and lack compatibility with existing circuit protection accessories, hindering their widespread use.
Innovation Solution
A modular pyrotechnic circuit protection system comprising pyrotechnic disconnect modules and control modules that facilitate easy configuration with standard fuses and terminals, enabling compatibility with various circuit protection specifications and reducing costs through modular design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pyrotechnic circuit protection devices are used, then quick and reliable operation is achieved, but device complexity and cost increase
Solution Approach 1:
The pyrotechnic circuit protection device is divided into separate functional modules: a pyrotechnic disconnect module containing the chemical energy storage and discharge mechanism, and a control module containing the sensing and control electronics. This segmentation allows each module to be optimized independently and simplifies the overall system architecture.
Solution Approach 2:
The control module is designed to work with multiple types of pyrotechnic disconnect modules and can be integrated with various circuit protection specifications, making the system universally applicable across different applications and reducing overall system complexity.
2Speed
If conventional pyrotechnic circuit protection devices are used, then quick operation is achieved, but adaptability to different applications is limited
Solution Approach 1:
The control module serves multiple functions: it monitors circuit conditions, detects faults, activates the pyrotechnic disconnect, and can interface with various external systems. This multi-functionality enables the same basic architecture to be adapted to different voltage and current applications without requiring complete redesign.
Solution Approach 2:
The system allows for parameter changes in the pyrotechnic disconnect modules to match different circuit protection specifications, including varying voltage ratings, current capacities, and fault conditions. This enables quick adaptation to different applications while maintaining the fast operation characteristic.
3Reliability
If conventional pyrotechnic circuit protection devices are used, then reliable fault isolation is achieved, but compatibility with existing accessories is lost
Solution Approach 1:
The control module is designed with universal interfaces and mounting configurations that are compatible with existing circuit protection accessories, fuse holders, and electrical systems. This allows the pyrotechnic disconnect system to integrate with legacy infrastructure while maintaining reliable fault isolation capabilities.
Solution Approach 2:
The control module acts as an intermediary between the pyrotechnic disconnect mechanism and existing circuit protection accessories, providing the necessary interface and control functions to ensure compatibility while maintaining the reliability of fault isolation.
4Speed
If conventional pyrotechnic circuit protection devices are used, then chemical energy storage provides fast operation, but cost increases
Solution Approach 1:
By segmenting the system into a pyrotechnic disconnect module and a control module, the expensive pyrotechnic components can be produced in smaller quantities with higher precision, while the control module can be mass-produced using standard electronic manufacturing processes, reducing overall cost.
Solution Approach 2:
The modular design allows for parameter changes in the pyrotechnic charges to match different application requirements, enabling optimization of the chemical energy storage components for cost-effectiveness while maintaining fast operation speed.
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 system allows for versatile use in a wide range of applications, reduces installation complexity, and lowers costs by providing a configurable and scalable solution for circuit protection, enhancing compatibility with existing systems.
Implementation Method 1
a pyrotechnic disconnect feature that releases energy to disconnect an electrical connection between the terminals inside the device. The pyrotechnic disconnect feature may include stored chemical, electrical or mechanical energy that is released via actuation of a pyrotechnic charge
Data Source
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AI summary
A pyrotechnic circuit protection system includes a first connection terminal, a second connection terminal and a plurality of pyrotechnic modules (100) connected between the first and second connection terminals. Each of the pyrotechnic modules (100) includes a nonconductive housing (102) and electrical connectors (124,126) facilitating plug-in connection of the pyrotechnic modules (100) to one another. A single pyrotechnic control module (100) may control and coordinate a plurality of pyrotechnic disconnect modules.