Induction cooker is a ferromagnetic metal container that can be heated by AC magnetic field. Only in the case of ferromagnetic metal utensils, the energy conversion efficiency is high enough, and the heat and temperature generated are enough for cooking and eating. Simply put, it is a metal that can be attracted by a magnet. The main metals are iron, cobalt and nickel. Generally, steel or iron utensils can be used.

In the induction cooker of daily life, most stainless steel is also suitable for induction cooker, while the traditional ceramic tile pot is not suitable, and the general aluminum cooker is not suitable. There are some special earthen pots for induction cookers, which contain ferromagnetic metals, so they can be used on induction cookers. Enamel ware is an iron ware wrapped with enamel, so it can be used in induction cookers.

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principle of operation

Current and voltage are converted into direct current by rectifier, and the direct current is converted into high-frequency alternating current which exceeds audio frequency by high-frequency power conversion device. 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.

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