What are the ignition systems of gas stoves and ho

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As one of the important kitchenware of kitchen appliances, gas stove is also indispensable in modern times. With the continuous development of science and technology, kitchen appliances are becoming more and more intelligent, and people begin to lack knowledge of these high-tech products. What kinds of ignition systems do you have for gas stoves? How do they work? Have more understanding. For the problems you encounter in cooking, you may easily solve them without asking people, let alone worrying about cooking

at present, the ignition system of gas stoves basically adopts automatic igniters, including piezoelectric ceramic igniters and electronic pulse igniters

the piezoelectric ceramic igniter adopts two groups of piezoelectric ceramic components. With the help of the external force started by the switch, it instantly generates a high voltage of tens of thousands of volts on the piezoelectric ceramic cathode, and thus generates spark discharge. When the fuel gas is sent out by the nozzle and collides with the spark, it can immediately ignite and burn, and ignite the whole furnace plate burner to make it burn continuously

electronic pulse igniter uses electronic circuit devices to generate pulse oscillation voltage, which is then boosted by pulse transformer to obtain high voltage, thereby generating electric sparks to ignite gas stoves

in addition, there is a safe and cheap SCR igniter. The circuit principle of the igniter. It is simple in principle, safe and reliable, and easy to make. It can be used for more than one year with a large battery

the thyristor igniter is a pulse oscillation circuit that uses transformer B1 as a strong switch to realize positive feedback. When the switch K is closed, the battery voltage of 1.5V is directly applied to the emitter and collector C of transistor 3AX31; At the same time, the base current is generated by the bias of resistor 100. Due to the amplification of the transistor, a large collector current is generated

1. With the increase of, B1 generates self induced electromotive force on the collector winding, thus generating a mutual inductance electromotive force on the base winding. According to the connection method of the same name, the polarity of the mutual inductance voltage promotes 1 Further increase, so that the value of 1 is greater. Larger 1 Greater self induction and mutual inductance electromotive force will inevitably be induced, which will make 1 obtain greater growth. Such a positive feedback process is avalanche, and the transistor can quickly enter the saturation state. The conduction transistor stores energy in the collector winding and a large amount of excess charge in the base region

once the transistor enters the saturation region, the amplification factor drops below 1, and the avalanche process ends. The magnetizing current of B1 gradually increases due to the saturation of the transistor, so that the excess charge stored in the base region gradually decreases. After a certain period of time, the transistor will re-enter the amplification region from the saturated state. At this time, 1 decreases, and so does it. The decrease of 1 makes the mutual inductance on the base winding produce electromotive force, and makes 1 smaller. This is another avalanche process, which soon turns off the transistor

such a cycle of transistor conduction, cut-off and conduction makes the B1 secondary generate pulse potential output. When the B1 secondary output pulse is at high level, diode 2cz82 is turned on, and the energy stored in the collector winding begins to be transferred to capacitor C, making C charge and store energy. At the same time, through 5 The resistance of M charges the capacitor C1. When the voltage on C1 reaches about 30V, the bidirectional trigger diode 2cz82 is turned on, triggering the thyristor 3ctia to turn on, so that the capacitor C passes through the primary discharge of transformer B2, generates a high-voltage pulse in the secondary of B2, and breaks down the gap of the discharge electrode to produce sparks. The discharge frequency can be changed by 5 M resistance. If the resistance value is too large, the discharge frequency will be too slow and the ignition efficiency will be reduced; If the resistance value is too small, the discharge frequency will be too fast, and capacitor C cannot store enough energy, so it is difficult to ignite the gas. Therefore, it is best to adjust the discharge frequency at 2~3hz

the above documents are provided by Sipin kitchen appliances. Please indicate the source for Reprint: http://www.chinaspdq.com/





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