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Intrinsic safety type electric detonator detonation system

An electronic detonator, intrinsically safe technology, used in blasting, weapon accessories, fuzes, etc., can solve problems such as the temperature rise of the detonator shell, filter out electromagnetic interference and electrostatic interference, improve overall reliability, increase drive capability and conflict The effect of protective properties

Active Publication Date: 2009-04-15
保融盛维(沈阳)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not allowed in the internal circuit of the electronic detonator, because the impact current is easy to generate heat on electronic components such as transistors, so that the shell temperature of the detonator will rise, which must be suppressed

Method used

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  • Intrinsic safety type electric detonator detonation system
  • Intrinsic safety type electric detonator detonation system
  • Intrinsic safety type electric detonator detonation system

Examples

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Embodiment Construction

[0031] What the intrinsically safe electronic detonator of the present invention improves is the inner part of the detonator, and the detonator still uses the existing type, and the electronic detonator group and the detonator together constitute the detonation system. A group of electronic detonators can be as few as one piece, or as many as tens of thousands, or even tens of thousands of them are simultaneously controlled by the detonator detonator.

[0032] The inventive point of the present invention is that the ignition control system in each electronic detonator can be improved based on the characteristics of various existing electronic detonators, and the overall performance of the electronic detonator system can be improved and the use safer by adding an intrinsically safe circuit.

[0033]As shown in Figure 1, the control system of the intrinsically safe electronic detonator body of the present invention is composed of an energy storage capacitor circuit, a single-chip...

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Abstract

The invention discloses an intrinsic-safe type electronic detonator initiation system. An intrinsic-safe type protective circuit is arranged in a control system of the detonator, comprising an anti-interference circuit, a low-voltage DC conversion protecting circuit, a surge protecting circuit and an insulation stabilizing initiation control circuit, wherein, the surge protecting circuit is arranged between an electronic detonator energy-storage capacitor and an SCM control circuit, the output of the surge protecting circuit is communicated to the serial interface of the SCM control circuit through a level shifter circuit and an MAX485 chip and the input terminal of the surge protecting circuit is connected with the output terminal of the energy-storage capacitor; the low-voltage DC conversion protecting circuit and a voltage-stabilizing protecting circuit are arranged between the energy-storage capacitor and the initiation circuit of the electronic detonator; and simultaneously the insulation voltage-stabilizing circuit is arranged between the energy-storage capacitor and an electronic switch of the initiation circuit of the detonator.

Description

technical field [0001] The invention relates to an intrinsically safe electronic detonator detonation system. Background technique [0002] According to the definition of the International Electrotechnical Commission (IEC for short), an intrinsically safe circuit refers to a circuit that cannot ignite a specified explosive gas mixture under specified test conditions under normal operation or specified fault conditions. The so-called intrinsically safe circuit is realized by limiting the energy of two possible ignition sources, electric spark and thermal effect. Therefore, the design of intrinsically safe explosion-proof equipment must start with limiting energy, and limit the voltage and current in the circuit to an allowable range, so as to ensure that the spark and thermal effects generated by the equipment are normal or short-circuited or damaged. Neither can cause an explosion of dangerous gases that may exist around it. For general circuits, the safety spark parameter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/05F42C19/12
Inventor 李长军王大志陈阳明
Owner 保融盛维(沈阳)科技有限公司
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