Induction cooker is the use of magnetic field induction eddy current heating principle, he uses the current through the coil to produce a magnetic field, when the magnetic force in the magnetic field through the bottom of the iron-containing pot, that will produce countless small eddy, so that the pot body itself high-speed heating, and then heated to the food in the pot. The electromagnetic wave generated when the induction cooker works is completely absorbed by the shielding layer at the bottom of the coil and the iron-containing pot on the top plate.
Heating principle of induction cooker
Induction cooker is the application of electromagnetic induction principle of food heating. The furnace surface of induction cooker is heat-resistant ceramic plate, alternating current produces magnetic field through the coil at the lower part of ceramic plate, the magnetic force line inside the magnetic field passes through the bottom of the iron pot, stainless steel pot, produce eddy current, make the bottom of the pot quickly gives off heat, achieve the purpose of heating food. Its working process is as follows: the AC voltage is converted into direct current by the rectifier, and the high frequency power conversion device makes the direct current into the high frequency alternating current that exceeds the audio frequency. The high frequency alternating current is added to the flat hollow spiral induction heating coil, thus generating the high frequency alternating magnetic field. The lines of magnetic force pass through the ceramic plate of the hearth and act on the metal pot. Powerful eddies are created inside the cooking pot by electromagnetic induction. When the eddy current overcomes the internal resistance of the pot body, it completes the conversion of electric energy to thermal energy, and the Joule heat generated is the heat source for cooking.
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