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Electromagnetic induction heating technology electromagnetic heating machine

Electromagnetic heating machine uses electromagnetic induction heating, which may be familiar to many friends. Electromagnetic heating machine has been applied in all aspects of our food, clothing, housing and transportation. The use of induction cooker is the most extensive, basically every household will have even We don't use it regularly, but we have studied it in middle school.

Electromagnetic heating is also called electromagnetic induction heating, that is, electromagnetic heating (external text: Electromagnetic heating abbreviation: EH) technology, the principle of electromagnetic heating is to generate alternating magnetic field through the components of the electronic circuit board, if placed with iron-containing vessels, the vessel The surface cuts the alternating magnetic field lines and generates alternating current (ie, eddy current) at the metal part at the bottom of the vessel. The eddy current causes the carriers at the bottom of the vessel to move rapidly and irregularly, and the carriers collide with the atoms and rub to generate thermal energy. Thereby the effect of heating the article. Because the iron utensils are self-heating, the thermal conversion rate is particularly high, and up to 95% is a direct heating method. Induction cooker, electromagnetic cooker electromagnetic heating rice cooker are all using electromagnetic heating technology.
Electromagnetic induction heating technology electromagnetic heating machine
electromagnetic heating machine
Technical principle
1. Electromagnetic heating machine: Electromagnetic heater is a device that converts electric energy into thermal energy by using electromagnetic induction principle. The electromagnetic heating controller converts 220V, 50/60HZ AC rectification into DC power, and then converts DC power into frequency 20- 40KHZ high-frequency direct current, or 380v 50/60HZ three-phase alternating current is converted into direct current and then converts direct current into 10~30KHZ high-frequency low-voltage and high-current electricity for industrial product heating.

2. Electromagnetic heating coil: The rapidly changing high-frequency high-voltage current flowing through the coil will produce a rapidly changing alternating magnetic field. If the iron-containing vessel is placed on the surface, the surface of the vessel will be cut with alternating magnetic lines of force and at the bottom of the vessel. The alternating current (ie, eddy current) is generated, and the eddy current causes the carriers at the bottom of the vessel to move rapidly and irregularly, and the carriers collide with each other and friction to generate thermal energy. Thereby the effect of heating the article. That is, by converting electrical energy into magnetic energy, an induced eddy current is generated on the surface of the heated steel body. This method fundamentally solves the problem of low thermal efficiency caused by heating by means of heat conduction, such as electric heating sheets and electric heating coils.
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