What is the working principle of an inductor coil winding machine?

Inductive coil refers to a coil wound on an insulating tube through a series of wires, which are insulated from each other. The insulating tube can be hollow or contain an iron core or magnetic powder core.

Inductive coil is a device that works using the principle of electromagnetic induction. When current flows through a wire, a certain electromagnetic field is generated around the wire, and the wire of the electromagnetic field itself will induce the wire within the electromagnetic field range. So, what is the working principle of an inductive coil winding machine?

Inductive coil winding machine is a machine that generates AC magnetic flux inside and around a wire when AC electricity passes through it. The ratio of the wire's magnetic flux to the current that generates the magnetic flux is calculated. When direct current flows through an inductor, there are only fixed magnetic lines around the inductor that do not change over time. But when AC current passes through the coil, magnetic field lines will be displayed around the coil, and the magnetic field lines will change over time.

When forming a closed loop, this induced electromotive force will generate an induced current. According to Lenz's law, the total amount of magnetic field lines generated by induced current will attempt to prevent changes in the original magnetic field lines. As the changes in the original magnetic field lines originate from changes in external AC power sources, objectively speaking, inductive coils have the characteristic of preventing current changes in AC circuits. Inductive coils have characteristics similar to mechanical inertia, and they are called "self induction" of electricity. Usually, when the knife switch is turned on or turned on, sparks are generated, which is caused by the high induced potential generated by self induction.

In short, when the inductance coil winding machine is connected to an AC power source, the magnetic field lines inside the coil will always change with the AC power, causing the coil to continuously generate electromagnetic induction. The electromotive force generated by the change in the coil's own current is called "self induced electromotive force". It can be seen that the inductance is only a parameter related to the number of turns, the size and shape of the coil and medium, and it is a measure of the inertia of the inductance coil and is independent of the applied current.