The working principle of rice cooker
If the electric cooker to boil water, after boiling water, because the water temperature remained at 100 degrees, it can not automatically power-off, only after boiling water dry, the temperature increased to 103 degrees, to automatically power-off
Start cooking, by hand press the switch button, the permanent magnet and the temperature of magnets, loose, button no longer returned to here, then contact, electric heating plate, electric heating, water boiling, the pot kept at 100 unchanged, so the temperature sensing magnet is sucked, and the permanent magnet to heating, until after the rice is cooked, the water absorbed by rice, pot temperature, when the temperature rise to the "Curie point of 103 DEG C when the temperature sensing magnet lose ferromagnetism, under the action of the spring, the permanent magnet is open, contact separation, cut off the power supply to stop heating.
