Patent ID: 7603982

Claim:
A capacitor discharge engine ignition device comprising: a coil unit; an ignition unit; and a case housing said coil unit and said ignition unit, wherein said coil unit includes a core having a magnetic pole portion for being faced to a magnetic pole on a magneto rotor driven by an engine, an exciter coil that is wound around said core and induces an AC voltage in synchronization with rotation of said engine, and an ignition coil placed in parallel with said exciter coil and wound around said core, said coil unit is housed in said case with the magnetic pole portion of said core placed outside said case, said ignition unit includes an ignition capacitor, a capacitor charging circuit that charges said ignition capacitor with an output of said exciter coil, a discharge circuit that discharges charges accumulated in said ignition capacitor through a primary coil of said ignition coil when receiving an ignition signal, and an ignition timing control circuit that controls timing for providing said ignition signal to said discharge circuit, and said ignition capacitor and components of said capacitor charging circuit, said discharge circuit and said ignition timing control circuit are mounted to said circuit board, said ignition unit is placed on a lateral side of said coil unit in the case with a surface of said circuit board directed in parallel with an axis of said coil unit, said exciter coil and said ignition coil are placed axially with a spacing therebetween, and a space is formed between the coils, a plurality of ignition coil connection terminals drawn out from said ignition coil for connecting said ignition coil to said circuit board and a plurality of exciter coil connection terminals drawn out from said exciter coil for connecting said exciter coil to said circuit board are drawn out toward said circuit board through the space between said ignition coil and said exciter coil and connected to said circuit board, and said coil unit and said ignition unit are molded with resin poured into said case.