Electronic igniter for IC rock drill

The utility model belongs to an electronic ignition device for an internal-combustion driller. The utility model is characterized in that a charge coil L< 1 > which is wound on a control iron core (1) is connected with diodes D< 1 > and D< 2 > to form a half-wave rectification circuit; the negative electrodes of the diodes D< 1 > and D< 2 > are connected with the anode of a controlled silicon SCR and one end of a capacitor C, the positive electrode of a diode D< 3 > is connected in series with one end of a triggering coil L< 2 > and then connected in parallel with a resistor R between a control panel of the controlled silicon SCR and the negative pole of the diode D< 3 >, the other end of the capacitor C is connected with the connecting end of the primary coil L< 3 > and the secondary coil L< 4 > of an ignition coil (5), the other end of the primary coil L< 3 > of the ignition coil (5) is connected with the negative pole, and the secondary coil L< 4 > of the ignition coil (5) is connected with a spark plug (8). The utility model overcomes fully the disadvantages of a mechanical contact magneto and has the advantages of convenient operation, high electrical performance and strong sparks; the utility model improves the starting performance and drilling speed of the internal-combustion driller, and the whole ignition system of the utility model has the advantages of temperature resistance, pressure resistance, shock resistance, etc.