Manufacturing method of two-in-one structure inductor with air gap formed in side surface

Abstract

The invention discloses a manufacturing method of a two-in-one structure inductor with an air gap formed in the side surface. A base of the inductor is provided with four electrode grooves, so electrodes can be conveniently installed without using an additional positioning device for positioning. A tail end of the coil is close to a Z-shaped extension sheet of the electrode, so the extension sheetwraps the tail end of the coil and is pressed by a jig, the extension sheet of the electrode is Z-shaped, the extension sheet can just wrap the tail end of the coil, wrapping and welding of the extension sheet and the coil achieve a better conductive effect, and loss is effectively reduced. Compared with an inductor with an air gap formed in the front face, the inductor of the two-in-one structure with the air gap formed in the side surface and manufactured through the manufacturing method is compact in overall structure, small in size and good in performance. The preparation method disclosedby the invention is simple to operate and convenient to assemble, an air gap is formed in the formed independent complete side surface during production, and working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of inductor manufacturing, in particular to a manufacturing method of an inductor with a two-in-one structure with an air gap on the side surface. Background technique [0002] For the electrical principle and magnetic structure of the two-in-one inductor products currently on the market, please refer to figure 1 and figure 2 , this structure is to open an air gap on the front of the magnetic core, and the position of the air gap is as follows image 3 As shown, the magnetic core of this structure is assembled by two separate products. Each product uses a pair of E-shaped magnetic materials. The product is large and inconvenient to install. It does not meet the current trend of thin, light and miniaturized electronic components. Moreover, the inductor in the prior art uses a round copper wire wound coil as a conductor, and the D.D.R. is large, resulting in increased DC loss. In addition, due to the small...

AI Technical Summary

Problems solved by technology

[0002] For the electrical principle and magnetic structure of the two-in-one inductor products currently on the market, please refer to figure 1 and figure 2 , this structure is to open an air gap on the front of the magnetic core, and the position of the air gap is as follows image 3 As shown, the magnetic core of this structure is assembled by two separate products. Each product uses a pair of E-shaped magnetic materials. The product is large and inconvenient to install. It does not meet the current trend of thin, light and miniaturized electronic components.

Moreover, the inductor in the prior art uses a round copper wire wound coil as a conductor, and the D.D.R. is large, resulting in increased DC loss

In addition, due to the small overload capacity of the round copper wire and the circular cross-section, the distance between the wires and the layers during the winding process is large, resulting in waste of space and large distributed capacitance, large leakage inductance, resulting in poor EMC performance and adverse effects on peripheral components. cause electromagnetic interference with equipment

For a long time, domestic technicians wanted to solve the above problems, but they could not solve the existing problems at the same time. Either the product cost was too high, the competitiveness declined, or the problem of large product volume could not be solved.

Images