The present invention relates to a design of "eddy-current electroheater" and its manufacture method. It is deisnged to use the thermal effect principle of eddy-current to convert electric energy to heat energy and designed to produce a heating element according to the working characteristics of A.C. electroheaters with various purposes, such as electric oven, electric heating installation, electrothermal pot, electric chafing dish, electric iron, boiling water and insulation dual-purpose electrothermal bucket, electric shower and electrothermal cup. It is characterized by that it consists of solid or non-solid iron core which can be made of no-insullac non-thin steel slice and made into various forms according to the different purposes of various electric appliances and insulating material in the interior of electromagnetic coil and coil. This electroheater has three large advantages of high thermal efficiency, safety and long service life. |