The principle is the use of electric current through a large resistance wire (tungsten wire, and incandescent material in the same) when the heat emitted from the heat.

　　Electromagnetic cooker, through the electronic circuit board components produce alternating magnetic field, when the iron pot with the bottom of the furnace placed, the pot is cutting the alternating magnetic field lines in the pot at the bottom of the metal part of the alternating current (eddy current ), The eddy current to cook pot iron molecules high-speed random movement, molecules collide with each other, friction and heat (so: induction cooker heat from the bottom of the pot instead of the induction cooker itself conduction to the pot, so the thermal efficiency than all cooking utensils Of the efficiency are nearly 1 times higher) to make their own high-speed heating equipment itself, used to heat and cooking food, so as to achieve the purpose of cooking.

　　Electric stove according to the installation can be divided into free-placed and built-in (embedded in the kitchen counter); according to the type of stove heater can be divided into all-electric and electric-gas type (in addition to electric heaters, Also with 1 to 2 gas heaters).

　　Electric stove by the shell, electric components and temperature control system composed of:

　　① shell: including the box, the control panel and door parts 3, are made of thin steel plate. The surface where the subject of high temperature should be painted enamel. Box for the two, during which can be filled with insulation material, it can be air sandwich. The door is equipped with heat-resistant glass, but also has an interlocking mechanism, in the open door can be automatically cut off the power.

　　② electric components: sub-heating elements and cooking stove heating element two categories. Stove heating elements installed in the stove table can be heated all kinds of pots. Its typical form is bent into a disc-shaped metal tubular electric heating element, power adjustable or fixed. The cooking chamber heating element is installed in the cooking chamber for cooking food. Usually by the upper part of the roasted components and the lower part of the composition of baking, is a common metal tube.

　　③ temperature control timing system: electric stove temperature and timing is mainly used for cooking chamber. Temperature control using bimetal-style or temperature-sensing package temperature control, regular use of winding, electric or electronic timer. The total power of electric stoves are larger, generally more than 2kW, and some can be as high as 10kW or more, installation and use should pay special attention to overload safety issues.