The electric heating plate of the rice cooker has two heating states! One is full pressure heating! Cooking mode! At this time, the heating switch is attracted by the magnetic steel, and the hot plate is fully charged with voltage! The second is half-pressure heating! That is, heat preservation mode! At this time, the heating switch disconnects the full voltage circuit due to the loss of magnetism of the magnetic steel! Open the half-voltage circuit! The heating magnetic control of the rice cooker is designed by using the demagnetization characteristic of 103 degree of Curie magnetic steel! The boiling point of water is 100 degrees! As long as there is water in the pot! The heating temperature will not exceed 100 degrees! When the temperature exceeds 103 degrees after the water dries, the magnetic steel will lose its magnetism and fall!
This makes the rice cooker unable to keep warm with water under normal circumstances! But it can be artificially isolated from water! That is, in the state of heat preservation, the pot body will not bounce and then be filled with water!