Electronic Detonator Spool Layout for Cable Routing and Orientation
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Solution Overview
Problem
Existing detonator systems face challenges in deploying wireless bus detonators without surface connections, leading to reduced communication ranges or interruptions, and are difficult to install and orient correctly.
Innovation Solution
A detonator coil with a cylindrical body featuring a hub for rotating the coil, housings for primers and electronic control modules, and a stake for pivot connection, allowing precise orientation and easy deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic control module is positioned away from the bore exit to improve communication range, then communication reliability is improved, but the cable length and device complexity increase
Solution Approach 1:
The device is divided into two functional segments: a primer unit positioned at the bore exit and an electronic control module positioned remotely. The cable connects these segmented parts, allowing the electronic control module to be optimally positioned for communication while the primer remains at the bore exit for firing functionality.
Solution Approach 2:
A cable acts as an intermediary element connecting the primer and the electronic control module. This intermediary allows the two functional entities to be spatially separated - the primer at the bore exit and the electronic control module at an optimal distance for communication - while maintaining electrical and data connectivity.
2Ease of operation
If the primer is positioned at the bore exit for easy installation, then ease of operation is improved, but the communication range with the electronic control module is reduced
Solution Approach 1:
The detonator system is segmented into a primer unit that can be independently positioned at the bore exit for easy installation, and a separate electronic control module that can be positioned optimally for communication. This segmentation allows each component to fulfill its primary function without compromise.
Solution Approach 2:
The electronic control module is extracted from the primer assembly and positioned as a separate entity connected by a cable. This extraction allows the electronic control module to be located at an optimal distance for communication while the primer remains at the bore exit.
3Productivity
If several detonators are stored closely together to save space, then storage efficiency is improved, but the primers are too close together creating safety risks
Solution Approach 1:
By separating the primer from the electronic control module and housing components, the design allows primers to be spaced further apart when multiple detonators are stored together. The non-primer components can be compacted, while primers maintain safe separation distances.
Solution Approach 2:
The primer housing is positioned at the end of the coil body, extending the overall length of the detonator assembly. This dimensional change allows primers of multiple detonators to be spaced further apart along the length of stored detonators, reducing proximity risks while maintaining compact width and height for efficient storage.
Data Source
Figure 1A~1D
Figure 2A~2C
Figure 3A~3C
AI summary
Detonator spool (10) comprising at least one body (11) configured to receive a cable wound around the body, the body (11) comprising at least one housing configured to receive a primer, an electronic control module housing (16a) configured to receive an electronic control module (50), and a bore (14) forming a hub configured to rotate the body of the spool (10); and detonator comprising such a spool (10).