Manufacturing method of common mode inductor

Abstract

The invention provides a manufacturing method of a common mode inductor. The common mode inductor comprises a magnet conducing inner core, wherein a coil is wound outside the magnet conducting inner core, a coil body is buried into metal magnetic powder, the casting is carried out, and the common mode inductor is obtained. An SMD (surface mount device) lead pin is a lead-out pin of the coil body and is directly formed on the surface of a seat body, and the magnet conducting inner core is in a square shape.

Description

technical field [0001] The invention belongs to the field of magnetoelectricity, in particular to a manufacturing method of a common mode inductor. Background technique [0002] The inductance element is an extremely important component in the electronics industry. The traditional inductance element is made by winding a magnetic material element; the other inductance element is a coating made of a magnetically permeable material wrapped outside the coil, so that form the inductive element. The traditional inductance element is composed of two magnetic cores, one upper and one lower, and a coil. The lower magnetic core has a groove for accommodating the coil. The upper magnetic core is covered with its corresponding cover, and then bonded by dispensing , baking and other processes, so that the two cores are combined into a cladding body. This kind of inductance element, there will be a gap at the combination of the two magnetic cores, which is a large magnetic permeability ...

AI Technical Summary

Problems solved by technology

[0009] 1. The labor intensity of the workers is high;

[0010] 2. Low processing efficiency;

[0011] 3. The winding density and spacing of the coils are difficult to control, resulting in poor consistency of processed products