Homemade induction heater circuit diagram design and working principle detailed introduction-Kehua

The heater is an important heating device in our life. Knowing the design and working principle of the device can make it easier and more convenient for us to use it. Let's take a look at the circuit diagram design and working principle of the homemade induction heater with Kehua. Introduction to Induction Heating Electromagnetic induction heating, or induction heating for short, is a method of heating conductive materials such as metallic materials. It is mainly used for metal thermal processing, heat treatment, welding and melting. As the name suggests, induction heating is the use of electromagnetic induction to generate current inside the heated material, and rely on the energy of these eddy currents to achieve the purpose of heating. The basic components of an induction heating system include an induction coil, an AC power source and a workpiece. Depending on the heating object, the coil can be made into different shapes. The coil is connected to a power source, and the power source provides an alternating current to the coil. The alternating current flowing through the coil generates an alternating magnetic field passing through the workpiece, and the magnetic field causes the workpiece to generate eddy currents to heat it. Self-made induction heater circuit diagram Induction heating principle Induction heating surface quenching is a quenching method that uses the principle of electromagnetic induction to generate a high-density induced current on the surface layer of the workpiece, rapidly heats it to austenite state, and then rapidly cools to obtain a martensite structure. When an alternating current of a certain frequency passes through the induction coil, an alternating magnetic field with the same frequency as the current changes will be generated inside and outside it. When the metal workpiece is placed in the induction coil, under the action of the magnetic field, an induced current with the same frequency as the induction coil and the opposite direction will be generated in the workpiece. Because the induced current forms a closed loop along the surface of the workpiece, it is often called an eddy current. This eddy current converts electrical energy into heat, rapidly heating the surface of the workpiece. Eddy currents are mainly distributed on the surface of the workpiece, and there is almost no current passing through the workpiece. This phenomenon is called surface effect or skin effect. Induction heating uses the skin effect to rapidly heat the surface of the workpiece to the quenching temperature by means of the current thermal effect. The induction coil is made of copper pipe, and cooling water is passed through it. When the surface of the workpiece is heated to a certain temperature in the induction coil, it is immediately cooled by water spray, so that the surface layer can obtain a martensite structure. 12-volt tapless ZVS induction heating production and detailed introduction Electromagnetic induction heating, referred to as induction heating, is a method of heating conductor (mainly iron) materials. It is mainly used for metal thermal processing, heat treatment, welding and melting. Induction heating is to use the method of electromagnetic induction to generate electric current inside the heated material, and rely on the energy of these eddy currents to achieve the purpose of heating. The basic components of an induction heating system include an induction coil, an AC power source (pulsed DC). When an alternating current of a certain frequency passes through the induction coil, an alternating magnetic field with the same frequency as the current changes will be generated inside and outside it. When the metal workpiece is placed in the induction coil, under the action of the magnetic field, an induced current with the same frequency as the induction coil and the opposite direction will be generated in the workpiece. Because the induced current forms a closed loop along the surface of the workpiece, it is called eddy current. This eddy current converts electrical energy into thermal energy, rapidly heating the workpiece. FET: Literally face up, pins down, from left to right gate (g), drain (d), primary (s). Heat sinks and fans should be added to generate heat during work. Field effect transistors (MOS tubes) Resistors: conductors hinder current flow. This circuit should choose 2W (220-470) resistance Zener diode: also called Zener diode. Using the reverse breakdown state of the pn junction, the current can change in a wide range and the voltage is basically unchanged, and the diode is made of voltage regulator. This circuit uses a 12V Zener tube (IN4742) Zener diode Capacitance: represented by C. The container that holds the electricity is also an AC and DC blocking element. This circuit uses MKPH capacitors (630V-1200V) MKPH capacitors Diode: UF4007 is a fast recovery diode and a high-frequency rectifier diode. UF4007 diode Inductor: It is a component that can convert electrical energy into magnetic energy and store it. Inductance is a property of a closed loop, and when the current through the closed loop changes, an electromotive force occurs to resist the change in current. 100ah (30 turns with 1.5 square wire) Inductor Induction coil: use copper tube or copper wire (10 square) to wind 10 turns, the inner diameter of the coil (40MM). Changing the shape of the coil can also be made into a small induction cooker. Safety first, carefully make the circuit diagram of the self-made induction heater The above is a detailed introduction to the circuit diagram of the self-made induction heater. Kehua is a professional manufacturer of quenching equipment. You can view the principle and manufacturing method of the relevant induction heater in the company. If you want to know For more information remember to follow us.