An electrical pyrotechnics component

Abstract

The invention discloses an electric initiating explosive device component with high safety and low energy consumption. The electric initiating explosive device component comprises an electric initiating explosive device, an electronic switch and a packaging body; the electronic switch and the packaging body are arranged in the packaging body; the electronic switch is connected with the electric initiating explosive device in parallel; in the non-ignition state, the electronic switch is in the normal open state, and at the moment, the electric initiating explosive device is in a short circuit state and has the high safety current and high safety; in the ignition state, the electronic switch is disconnected, the electric initiating explosive device has access to an ignition control circuit, normal ignition can be achieved only through the low ignition energy and ignition voltage, and the low-energy ignition capability is achieved. The electric initiating explosive device component has the high safety and the low-energy ignition capability at the same time, and meanwhile due to the simple working condition of the electronic switch, a complex peripheral circuit is not needed.

Description

technical field [0001] The invention relates to the technology of electrical explosive devices, in particular to an electrical explosive device assembly with low ignition energy and high safety current. Background technique [0002] Traditional EED components mainly include metal bridge wires, explosive foils, reactive bridges, semiconductor bridges and metal film bridges. Wherein, the metal bridge wire is welded between two metal electrodes, and when the metal electrodes are fed with electric current, the bridge wire heats up and ignites the propellant in contact with the bridge wire. There are obvious defects in metal bridge wires in actual design and application: first, when higher safety current (≥100mA) is required, higher ignition voltage (≥28V) and higher ignition energy (≥10mJ); In order to reduce the ignition voltage, ignition current and ignition energy of the metal bridge wire, the diameter of the bridge wire must be reduced to increase the sensitivity of the ign...

AI Technical Summary

Problems solved by technology

There are obvious defects in metal bridge wires in actual design and application: first, when higher safety current (≥100mA) is required, higher ignition voltage (≥28V) and higher ignition energy (≥10mJ); In order to reduce the ignition voltage, ignition current and ignition energy of the metal bridge wire, the diameter of the bridge wire must be reduced to increase the sensitivity of the ignition powder, resulting in a decrease in the safety current of the EED, and also reducing the antistatic resistance of the EED. The ability of electromagnetic interference, which means that in order to make the low-energy and reliable ignition of EEDs, the safety of EEDs needs to be reduced

However, its bridge area size, bridge area material and bridge area process also limit the further improvement of its safety current, and it is difficult to meet the requirements of certain industries, such as the 1A1W5-minute non-ignition requirement for electrical explosives in the national military standard.

[0003] Traditional EEDs have the following problems: If EEDs have a higher safety current, they also have higher ignition energy and ignition voltage; and if the ignition energy and ignition voltage of EEDs are reduced, EEDs will The safety current of the product will be reduced, resulting in a reduction in the safety of the finished electrical pyrotechnic product

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