US 2011/0032066 A1Published application

Laminated inductor with enhanced current endurance

AssigneeMag. Layers Scientific Technics Co., Ltd.

InventorJUI-MIN CHUNG

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Abstract

A laminated inductor includes a plurality of magnetic plates, each having a surface to which a high-permeability magnetic body is attached, and at least one spacer assembly interposed between the magnetic plates. The spacer assembly includes two magnetic boards having moderate magnetic permeability and a magnetic board having low magnetic permeability interposed between the two moderate-permeability magnetic boards. Both moderate-permeability and low-permeability boards are provided, at a surface of each board, with a magnetic body having high permeability. A magnetic top lid and a magnetic bottom lid are respectively set on outside surfaces of the topmost and bottommost ones of the magnetic plates. The high-permeability magnetic bodies mounted to the magnetic plates and the arrangement of the spacer assembly help improve the characteristic of DC superimposition of the laminated inductor thereby enhancing current endurance thereof.

Claims10

Dependent claims

A laminated inductor, comprising:

a plurality of the magentic plates, which is sequentially stacked to form a laminated inductor, which has opposite ends to which two electrode contacts are respectively mounted, each of the magentic plates being printed with a conductor pattern and forming a through hole, each of the magentic plates having a surface to which a high-permeability magentic body is mounted, the plurality of magentic plates comprising a topmost magentic plate to which a conductive terminal is mounted and in electrical connection with a respective electrode contact of the laminated inductor;
and
at least one spacer assembly, which is interposed between the magentic plates and is formed of two moderate-permeability magnetic plates interposing therebetween a low-permeability magnetic plate, each of the moderate-permeability magnetic plates of the spacer assembly comprising a high-permeability magnetic body mounted thereto and forming a through hole, the low-permeability magnetic plate of the spacer assembly comprising a high-permeability magnetic body mounted thereot and forming a through hole.

Dependencies are inferred from the claim text.