Manufacturing method of nanocrystalline common-mode inductor

Abstract

The invention discloses a manufacturing method of a nanocrystalline common-mode inductor, and relates to the technical field of inductors. The method comprises the steps that a nanocrystalline strip is wound into a nanocrystalline magnetic ring with the outer diameter of 38 mm, the inner diameter of 22 mm and the height of 13 mm; the nanocrystalline magnetic ring is put into a vacuum annealing furnace to be subjected to heat treatment; the nanocrystalline magnetic ring obtained after heat treatment is cured and aged with epoxy resin; the cured and aged nanocrystalline magnetic ring is contained in a protection box; coils of two windings are evenly made on the two sides of the protection box of the nanocrystalline magnetic ring through two varnished wires, and then manufacture of the nanocrystalline common-mode inductor is completed. By means of the specially-set heat treatment method, the nanocrystalline common-mode inductor with the inductance larger than 15 mH, the outer size smaller than 48 mm and the thickness smaller than 28 mm can be manufactured, and the purposes of being high in inductance value and small in size are achieved.

Description

technical field [0001] The invention relates to the technical field of inductors, in particular to a method for manufacturing a nanocrystalline common-mode inductor. Background technique [0002] With the trend of technological development, the common-mode inductors in electronic components are changing towards miniaturization and light weight. However, it is difficult to achieve a balance between miniaturization and inductance in the existing technology. Inductors have relatively large volumes, and inductors with small inductances have relatively small volumes. It is difficult to achieve large inductances with small volumes. Contents of the invention [0003] The object of the present invention is to avoid the deficiencies in the prior art and provide a method for manufacturing a nanocrystalline common-mode inductor with an operating current of 15A, an inductance greater than 15mH, an outer dimension less than 48mm, and a thickness less than 28mm. [0004] The object of ...

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Problems solved by technology

[0002] With the trend of technological development, the common mode inductors in electronic components are changing towards miniaturization and light weight. However, it is difficult to achieve a balance between miniaturization and inductance in the existing technology. Inductance, its volume is relatively large, and the inductance with small inductance, its volume is correspondingly small, it is difficult to achieve large inductance, but its volume is small

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