This invention belongs to the field of
electronic component technology and discloses an
inductor structure and its preparation method. The
inductor structure includes: a base with mounting holes; a permanent core rod installed in the mounting holes of the base; a coil winding wound around the permanent core rod, with at least a portion of the free end of the coil winding folded around the surface of the base, the free end serving as an
electrical connection portion for
electrical connection with an
external circuit; and a
package tightly encapsulating the permanent core rod, coil winding, and base, with the
electrical connection portion located on the outside of the
package. The preparation method of the
inductor structure includes the following steps: assembling a temporary core rod and base, winding the coil winding,
processing the electrical connection portion, folding and fixing the coil winding, replacing the core rod, and
processing into a finished product in a molding die. The above-mentioned inductor structure preparation method is simple to operate and has simplified steps, which shortens the
production cycle while improving the
yield rate of inductor products, resulting in low product loss and
low impedance.