The surface of the induction cooker is a heat-resistant ceramic plate. Alternating current generates a magnetic field through a coil under a ceramic plate. When the magnetic lines of force in the magnetic field pass through the bottom of an iron pan, a stainless steel pot and the like. , produce vortex, so that the bottom of the pot quickly heats up, thus achieving the purpose of heating food.

The cooktop is a high-strength and impact-resistant ceramic flat plate (crystal glass). A high-frequency induction heating coil (i.e., an excitation coil), a high-frequency power conversion device and a corresponding control system are installed at the lower side of the stove, and a flat-bottomed frying pan is placed above the stove. Its working process is as follows: current and voltage are converted into direct current by rectifier, and then converted into high-frequency alternating current exceeding audio frequency by high-frequency power conversion device, and the high-frequency alternating current is added to the flat hollow spiral induction heating coil, thus generating a high-frequency alternating magnetic field, and its magnetic lines pass through the ceramic platen of the furnace and act on the metal pot. Due to electromagnetic induction, there is a strong eddy current in the pot. When the vortex flows against the internal resistance of the pot, the conversion from electric energy to heat energy is completed, and the generated Joule heat is the heat source of cooking.