JPS6182069U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a circuit diagram showing the electrical configuration of an embodiment of the present invention, Figure 2 is a sectional view showing an example of the configuration of a generator used in the present invention, and Figure 3 is a stator of the generator. FIG. 4 is a waveform diagram showing an example of the output voltage waveforms of the exciter coil and signal coil used in the present invention, and FIG. 5 is a diagram showing an example of the characteristics obtained by the present invention. 1...exciter coil, 2...signal coil, 3...
Ignition coil, 4... Capacitor for ignition energy storage, 7... Thyristor for discharge control, 8... Spark plug, 10... First signal supply circuit, 11... Rotation speed detection circuit, 11a... Capacitor for rotation speed detection, 11b
...Variable resistor constituting a discharge circuit, 11c...Switch for rotation speed detection, 12...Conduction signal supply control circuit, 12a...Switch for signal supply control, 13...Second
14... Transistor switch for adjusting ignition timing, 15... Capacitor for adjusting ignition timing, 16... Resistor, 20... Flywheel magnet rotor, 30, 40... Stator.

Claims (1)

[Claims for Utility Model Registration] A magnet generator including an exciter coil and a signal coil that induce an alternating current voltage in synchronization with the rotation of an internal combustion engine, an ignition coil, and a magnet generator provided on the primary side of the ignition coil. an ignition energy storage capacitor; a capacitor charging circuit that charges the ignition energy storage capacitor with the output of one half cycle of the exciter coil; and when electrical conduction occurs, the charge of the capacitor is discharged to the primary coil of the ignition coil. In the capacitor discharge type internal combustion engine ignition device, which is equipped with a discharge control thyristor provided to a first signal supply circuit comprising a signal supply switch that becomes conductive when a conduction signal is applied, and supplies an ignition signal from the exciter coil to the thyristor through the signal supply switch; and a constant voltage at the output of the exciter coil. A rotation speed detection capacitor that is charged with a rotation speed detection capacitor, a discharge circuit that discharges the rotation speed detection capacitor at a constant time constant, and a rotation speed detection circuit that is conductive while the terminal voltage of the rotation speed detection capacitor is above a certain value. a rotation speed detection circuit provided with a switch for detecting rotation speed; and a rotation speed detection circuit provided with a switch for detecting rotation speed, which is provided so as to block the supply of a conduction signal to the switch for supplying a signal when the switch is electrically conductive, and is configured to conduct when the switch for rotation speed detection is in a cutoff state. a conductive signal supply control circuit including a conductive signal control switch connected to the rotation speed detection switch; and a second signal that supplies an ignition signal to the thyristor with the output of one half cycle of the signal coil. a supply circuit; and a collector-emitter circuit connected in parallel to the gate-cathode circuit of the thyristor so as to prevent a firing signal from being applied to the thyristor from the second signal supply circuit when conductive. and the base is connected to one end of the signal coil via an ignition timing adjustment capacitor and a resistor, and a charging current flows through the ignition timing adjustment capacitor by the output of one half cycle of the signal coil. a transistor switch for adjusting ignition timing which is turned on when a base current is supplied thereto, and a phase at which an ignition signal supplied from the exciter coil to the thyristor through a first signal supply circuit reaches a trigger level of the thyristor; An ignition device for an internal combustion engine, characterized in that the phase relationship between the output of the exciter coil and the output of the signal coil is set so that the charging current of the ignition timing adjustment capacitor is ahead of the phase at which the charging current ends.