Inner and Outer Winding Coils

The inner and outer winding coil is a coil structure composed of an inner coil and an outer coil. The following is a brief introduction to it:

Structural features: The inner and outer winding coils consist of an outer coil and an inner coil that is sleeved at the center position inside the outer coil. The inner coil and the outer coil are respectively made by continuously and uninterruptible winding of several wires. The wire at the lower end of the coil is bent into a U-shaped connection structure, and the wire at the upper end is bent to lead out the upper part of the coil. Moreover, at the top of the coil, there is an upper end ring for flattening the top of the coil, and at the bottom, there are several lower pads evenly distributed circumferentially for flattening the bottom end of the coil.

Winding method: Usually, winding equipment is used. The wire for winding the coil is wound on the adjustable winding die, and the inner and outer coils are wound in a certain sequence. The upper end coil is placed at the top of the coil, and the wire is bent and led out from the upper end.

Performance advantages: This type of coil structure can adjust the electrical performance such as inductance and resistance of the coil by reasonably designing parameters such as the number of turns and wire diameter of the inner and outer layers of the coil, meeting the requirements of different application scenarios. For instance, in transformers, the inner and outer winding coils can effectively enhance the coupling coefficient of the coils, reduce leakage magnetic flux, and improve the efficiency of the transformer.

Application fields: Inner and outer wound coils are widely used in electronic components such as transformers and inductors. It plays an important role in power transmission, power circuits of electronic devices, etc., and can provide stable inductive characteristics and good electromagnetic coupling performance for these devices.