Silicon nitride igniter: Silicon nitride igniter principle
In fact, the principle of a silicon nitride igniter is very similar to the flint principle of a lighter. Connected to the plug is the knob for the gas range. When we press the knob, the plug will collide with the raised part of the ignition hammer, and when we turn the knob to the left, the silicon nitride igniter plunger will move together to the left and hit the raised part of the ignition hammer. As the rotation angle becomes larger, the ignition hammer is separated from the insert, and under the action of the spring, the piezoelectric element is quickly struck.
Many friends don't know what a piezoelectric element is. A piezoelectric element is a special ceramic dielectric. Whether it is pressed at one end at the same time or stretched, it will affect its development. Between the two ends Some of the same charges are generated between them, and various charges are generated in the middle, and they can carry a high amount of charge instantaneously. If the ignition hammer strikes instantly, it can generate a high voltage of 5000V to 10000V. The high voltage is transmitted to the ignition needle through the wire, and the silicon nitride igniter discharges in the ionized air to ignite the gas.
The ignition temperature of the nitride hot surface of the silicon nitride igniter is one of the advanced new ignition devices, which is heated and ignited by the heating element. Some products use silicon nitride plus foam composite silicon nitride or sintered heating elements buried in the heating wire, using ceramic blocks to install high purity high alumina ceramics in a very high density and mechanical strength. Power-supported products have a greater effect on the current firing temperature in seconds. Work, not wet and other electromagnetic fields affect the environment, but there is no electromagnetic interference to the external environment. It has fire protection, safety and reliability, and long service life. It can ignite various flammable gases, liquids, solids and other materials. Household gas stoves are widely used in microwave ovens, ovens, water heaters, dryers, incubators, heaters, gas air conditioners and other equipment.
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