The invention provides an electronic safety insurance circuit applied to an artificial rain
rocket shell. The electronic safety insurance circuit comprises a first-level ignition circuit, a second-level ignition circuit, a third-level ignition circuit and a breakage
signal circuit; the electronic safety insurance circuit is characterized in that the first-level ignition circuit is composed of resistors R9, R10 and R11, a
silicon-controllable
rectifier Q1, a
capacitor C4 and an igniting head F1, wherein the C4 is a
detonation capacitor; the R11 is a large-resistance slow energy dissipation
resistor; the second-level ignition circuit is composed of resistors R3, R4 and R8, a
silicon-controllable
rectifier Q2, a
capacitor C2 and an igniting head F2, wherein the C2 is a
detonation capacitor; the R8 is a large-resistance slow energy dissipation
resistor; the third-level ignition circuit is composed of resistors R1, R2 and R7, a
silicon-controlled
rectifier Q3, a capacitor C1 and an ignitinghead F3, wherein the C1 is a
detonation capacitor; the R7 is a large-resistance slow energy dissipation
resistor; and the breakage
signal circuit is composed of a MAX 4641 normally opened
signal switch, a large-capacity
energy storage capacitor C3, unidirectional current guide diodes IN4148 D1, D2 and D3, C5, C6 and R12. The electronic safety insurance circuit provided by the invention commendably realizes safe launching in action of the artificial rain
rocket shell and is also low in cost, reliable, practical and feasible.