The rice cooker is our daily life is used every day to the electrical appliances, the use of this appliance for everyone's quality of life is a great enhancement, not only makes the cooking efficiency greatly improved, the quality of the meal is also improved. There are many brands of rice cookers on the market, there are many types of rice cookers, many people are curious about what the principle of the rice cooker. Below I will give you an introduction to what is the principle of the rice cooker, as well as the maintenance of the rice cooker.

The working principle of the rice cooker

1. Electric rice is the use of a heating plate, in the bottom of the aluminum pot to cook rice. The heating plate has a built-in electric hot wire, which at that point is controlled by an automatic switch.

2. There is a round hole in the center of the heating plate, and inside the hole there is a temperature-sensitive soft magnet, which attaches itself to the bottom of the pot by means of a spring upward. This is a pure ferrite. It can be attracted by a permanent magnet at 100℃ or below. But when it rises to 103 ℃, it loses its magnetism and is no longer attracted by permanent magnets.

3. When the switch button is pressed, the switch crossbar puts the magnet upward against the temperature-sensitive soft magnet. At this time, the heating line is turned on and starts to heat up.

When the rice in the pot boils, the water in the pot gradually decreases. When the water begins to steam dry, the temperature in the pot rises from 100 ℃. When it rises to 103 ℃, the temperature-sensitive soft magnet is not attracted by the magnet, the lever of the switch due to the spring force of the spring and its own gravity and drop, pressure to make the contact points apart, the hairline is powered off. At the same time, connect another heat preservation circuit to keep the temperature of the rice at about 70℃.

Rice cooker maintenance tips

1, after use, the inner pot after washing, the exterior of the water must be wiped dry before putting into the rice cooker.

2, the bottom of the pot should avoid collision deformation. Between the heating plate and the inner pot must be kept clean, do not fall into the rice particles affect the thermal efficiency

rate or even damage to the heating plate.

3, the inner pot can be washed with water, but the shell and the heating plate should not be immersed in water, only after cutting off the power supply with a damp cloth to wipe clean.

4, should not cook acid, alkali food, and do not put in corrosive gases or humid places.

5, when using, you should put the steamed food into the pot first, cover the lid, and then plug in the power plug; remove the food should be unplugged before to ensure safety.

Construction of rice cooker

1, heating plate: this is the main heating element of the rice cooker, it is an aluminum alloy disc embedded with electric heating tubes, and the inner pot is placed on top of it, which can be seen by removing the inner pot.

2, temperature limiter: also known as the magnet. It is equipped with a permanent magnetic ring and a spring inside, which can be pressed and positioned in the center of the heating plate.

3, insulation switch: also known as thermostat. It is composed of a spring plate, a pair of normally closed contacts, a pair of normally open contacts, a bimetal.

4, lever switch: this switch is completely mechanical structure, there is a normally open contact. Cooking rice, press this switch, to the heating tube connected to the power supply, at the same time to the heating indicator power supply to make it light. When the rice is ready, the thermostat pops down, driving the lever switch and breaking the contact. Thereafter the heat pipe is controlled only by the keep warm switch.

5, current-limiting resistor: appearance of golden yellow or white for more, the size of the 3W resistor, according to the heat pipe and power supply between, play a role in protecting the heat pipe. Commonly used current limiting resistor for 185C?5A or 10A (according to the rice cooker power). The current limiting resistor is the key element to protect the heating tube, there can be a wire instead!

What is the working principle of the rice cooker, there is the structure of the rice cooker is what kind of rice cooker, as well as the rice cooker to how to maintain and use, these small make up have been in the above to give you a detailed introduction. Understand the working principle of the rice cooker, in the event of a rice cooker failure, there will be a certain direction to deal with the failure, so it is very worthwhile. People who really can not repair the rice cooker, or to ask for professional help, now in the market charges are not expensive.

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