Integrated Planar Switch for Multi-Mode Detonator
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional detonators with exploding foil initiators are limited to single operational modes, making them larger and heavier, which complicates their integration into compact, lightweight devices that require non-destructive integrity verification.
Innovation Solution
A detonator design with an integrated planar switch that allows operation in multiple modes (standard, breakdown, and trigger) by optimizing the geometry of conductive pads and projections to facilitate efficient electrical energy transmission across gaps, reducing the number of necessary contacts and leads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a detonator is designed to support multiple operational modes (standard, breakdown, trigger modes), then the operational versatility is improved, but the size and weight of the detonator increases
Solution Approach 1:
The patent merges the switch mechanism directly into the initiator structure by integrating conductive pads and projections onto the same substrate. This consolidation eliminates the need for separate switch and initiator components, allowing multi-mode operation without proportionally increasing detonator weight
Solution Approach 2:
The integrated planar switch design uses a universal structure with conductive pads and projections that can operate across all three modes (standard, breakdown, trigger) through a single configuration, eliminating the need for mode-specific hardware and reducing overall weight
2Adaptability or versatility
If a detonator is designed to support multiple operational modes, then the operational versatility is improved, but the device complexity increases
Solution Approach 1:
The patent combines the switch and initiator into a single integrated planar structure where conductive pads and projections serve dual purposes as both switching elements and initiator components. This merging reduces the number of discrete parts and simplifies the overall device architecture
Solution Approach 2:
The patent extracts the essential switching function and implements it directly within the initiator plane using conductive patterns, removing the need for separate mechanical switch components and reducing structural complexity
3Reliability
If additional electric leads are added to enable non-destructive verification of detonator integrity, then the testing capability is improved, but the device complexity and size increase
Solution Approach 1:
The conductive pads and projections serve multiple functions simultaneously: they act as switching elements for multi-mode operation, electrical contacts for integrity verification, and initiator components. This multi-functionality eliminates the need for separate dedicated test leads
Solution Approach 2:
The patent merges the testing function into the existing switch/initiator structure by using the same conductive elements for both operation and verification, eliminating additional leads and reducing overall device complexity
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
Enables reliable multi-mode operation in a smaller, lighter form factor while allowing for non-destructive verification of detonator integrity with fewer contacts, improving the working range and reliability compared to prior art detonators.
Implementation Method 1
the power source provides sufficient electric current to convert the bridge from a solid state to a plasma
Implementation Method 2
generate a shock wave to initiate a detonation event in an explosive charge
Implementation Method 3
electrical energy will jump the gap between the conductive pad and the first electrical conductor to thereby supply electrical energy to the bridge
Data Source
AI summary
A switch device having a base, a first electrically conductive pad coupled to the base, a second electrically conductive pad coupled to the base, a first electrically conductive projection and a second electrically conductive projection. The second electrically conductive pad is spaced apart from the first electrically conductive pad by a first predetermined distance. The first electrically conductive projection is coupled to the first electrically conductive pad and extends into the first gap. The second electrically conductive projection is coupled to the second electrically conductive pad and extends into the first gap. The second electrically conductive projection is spaced apart from the first electrically conductive projection by a second predetermined distance. The first and second electrically conductive projections form an electrical interface.