Power inductor and preparation method therefor

Abstract

Disclosed are a power inductor and a preparation method therefor, and the preparation method comprises the following steps: (1) casting a magnetic slurry to prepare a base magnetic sheet, a middle magnetic sheet, and a covering magnetic sheet individually; (2) placing the base magnetic sheet and the middle magnetic sheet in sequence from bottom to top, embedding coils, which are fixed on a thermo-sensitive adhesive at intervals in an array, into the middle magnetic sheet, and then compressing the covering magnetic sheet onto the top to form an inductor combination; and (3) cutting the inductor combination to obtain inductor units, and subjecting the inductor unit to curing, tumble spraying, laser paint stripping, electroplating, and a test in sequence to obtain the power inductor. The preparation method in the present application has a simple operation flow, few preparation processes, and a low preparation cost, which can realize a mass production of power inductors at one time, and has a prospect of large-scale industrial popularization and application.

Dependencies are inferred from the claim text.