Gas stove ignition device

Abstract

The invention relates to a gas stove ignition device, comprising an igniter, a gas source electromagnetic valve coil and a thermocouple; the ignition device is characterized in that: the ignition device also comprises a delay driving circuit, the positive input end of the delay driving circuit power is connected with the positive of a power supply, the negative input end of the delay driving circuit power is connected with the negative of the power supply; the trigger end of the delay driving circuit is connected with the output end of the igniter, in addition, the output end of the delay driving circuit is connected with the gas source electromagnetic valve coil which is connected with the thermocouple in serial, the delay driving circuit can always keep the circuit conducting before thethermocouple is up to the electromotive force capable of sucking the gas source electromagnetic valve. Compared with the prior art, the ignition device sets up the delay driving circuit in the gas appliance ignition device, and the delay driving circuit can maintain the open time of the electromagnetic valve, thus users can successfully ignite without the need of pressing and turning on an ignition knob and then waiting a while, and the use is more convenient.

Description

technical field [0001] The invention relates to an ignition control device for a cooker, in particular to a fast and wait-free ignition device for an embedded or desktop gas cooker. Background technique [0002] After more than ten years of development in the gas cooker industry, its safety has been greatly improved, and safety protection devices have also been greatly developed. The most commonly used ignition methods for gas cookers are usually two: one is the thermocouple type, and the other is the ion induction needle type. The ion induction needle ignition method can achieve rapid ignition, but because the reaction of the induction needle is relatively sensitive, once the flame leaves the needle, the flame will automatically extinguish, which is easy to cause automatic valve closing phenomenon, making the ignition unstable during use ;The use of thermocouple is a relatively traditional ignition method. Its structure is safe and reliable, but the thermocouple itself has...

AI Technical Summary

Problems solved by technology

However, the above-mentioned patent needs to install an ion induction pulser, an induction probe, and an induction pin connected to the solenoid valve in the circuit. There are many design components and the structure is relatively complicated. After the ignition switch is pressed, the ion induction pulser outputs The voltage is then added to the pull-in coil of the solenoid valve through the pin, but the induction probe is more sensitive. After ignition, it will cause an accidental flameout due to interference, resulting in unstable ignition, unable to achieve fast and stable ignition, and will still give users Causes inconvenience in use, and needs to be further improved

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