Ignition generating line power supply control circuit

Abstract

The invention provides an ignition generating line power supply control circuit. The control circuit involves an ignition battery control relay, a travel switch and an ignition battery; the ignition battery control relay is a magnetic latching relay, two groups of contacts of the ignition battery control relay are connected to a positive wire and a negative wire of an ignition generating line so as to control the on-off of the ignition generating line and the ignition battery; a relay front-stage excitation is connected with a control signal of a ground fire control system; a relay rear-stageexcitation is connected with the travel switch; before launching a guided missile, the control signal of the ignition control system controls the ignition battery control relay to turn off an ignitiongenerating line power supply line; and after a guided missile is launched, a flight zero signal sent by the travel switch controls the ignition battery control relay to turn on the ignition generating line power supply line. According to the control circuit, the structure is simple, the universality is high, the control circuit can be widely applied to power supply control of various types of missile ignition generating lines, so that safe and reliable power supply of the ignition generating line is realized, and the safety and the reliability of the ignition control circuit of an initiatingexplosive device on a missile are improved.

Description

technical field [0001] The patent of the present invention relates to a control signal circuit, in particular to an ignition bus power supply control circuit. Background technique [0002] The ignition of pyrotechnics on the bomb is a key link in the missile flight test process, and its safety and reliability are crucial to the success of the flight test and the safety of the test personnel. The control design of the ignition circuit of the pyrotechnic product requires that the ignition of the pyrotechnic product should be controlled by multiple control factors to form a series control relationship. Only when the control factors all meet the control conditions can the ignition circuit of the pyrotechnic product supply power normally, thus ensuring the power supply of the pyrotechnic product. Product ignition circuit safety. At the same time, while improving the safety of the ignition line power supply as much as possible, it is necessary to grasp the balance between safety ...

AI Technical Summary

Problems solved by technology

[0003] In the existing models, most of the ignition bus does not use the control circuit for power supply, and the ignition bus is charged after the ignition battery is activated during the missile launching stage, which has certain potential safety hazards.

In addition, most of the control circuits used in the ignition bus power supply are realized by using a single control signal to control the electromagnetic relay. The accidental short circuit or interference of the control signal line during the flight of the missile will easily lead to abnormal bus power supply, and the reliability of the bus power supply is not high.

Images