How the mysterious toroidal coil works？

Many people are curious about the working principle of the winding machine, how is it wound? The schematic diagram is roughly as follows.

The wire is first wound evenly on the wire storage ring and then the wire on the storage ring is wound on the skeleton by the bobbin. The skeleton is driven by a servo motor to rotate, turn on the power and then winding.

After talking for a long time, we directly feel the specific sense of space through the following small model:

Video reference: Creative Think

Of course, this is a simple model designed to introduce the working principle of the winding machine and cannot really be applied to the winding process. In practical applications, a complete coil needs to be set according to parameters such as wire diameter and number of turns.

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