Is the heating principle of the electric soldering iron the same as that of the induction cooker?
Soldering iron heating principle:
The electric soldering iron is an essential tool for electronic production and electrical appliance repair. It is mainly used for welding components and wires. According to the mechanical structure, it can be divided into internal heating type electric soldering iron and external heating type electric soldering iron. According to the function, it can be divided into non-soldering soldering iron and soldering iron. Tin-type soldering irons are divided into high-power soldering irons and low-power soldering irons according to different uses.
Mainly resistance wire heats, eddy current heat also occurs, but it is very small. This is why the soldering iron must be grounded (when soldering field effect tubes, etc.).
The heating principle of induction cooker:
The surface of the induction cooker is a heat-resistant ceramic plate. The alternating current passes through the coil under the ceramic plate to generate a magnetic field. When the magnetic field lines in the magnetic field pass through the bottom of iron pots, stainless steel pots, etc., eddy currents are generated, causing the bottom of the pot to heat up quickly, achieving the desired effect of heating food. Purpose. The stove top is a high-strength, impact-resistant ceramic flat plate (crystalized 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 under the table. A flat bottom plate is placed on top of the table. Cooking pot. Its working process is as follows: the current and voltage are converted into direct current through the rectifier, and then the direct current is changed into high-frequency alternating current that exceeds the audio frequency through the high-frequency power conversion device. The high-frequency alternating current is applied to the flat hollow spiral induction heating coil, resulting in The high-frequency alternating magnetic field, its magnetic field lines penetrate the ceramic plate of the stove and act on the metal pot. A strong eddy current is generated in the cooking pot due to electromagnetic induction. When the eddy current overcomes the internal resistance of the pot and flows, it completes the conversion of electrical energy into thermal energy. The Joule heat generated is the heat source of cooking.
Therefore, the heating principle of the electric soldering iron and the heating principle of the induction cooker are different.
