Magnetkomponente und Herstellungsverfahren für die Magnetkomponente

Details

Veröffentlichungs-Nr.

EP2618345

Aktenzeichen

EP12008573

Anmeldetag

21. Dezember 2012

Veröffentlichung

13. August 2014

Erteilung

13. August 2014

Rechtsraum

EP

IPC

H01F27/245H01F27/26H01F27/30H01F37/00

Abstract

Provided are a magnetic component and a manufacturing method for the magnetic component, in which, at a time of manufacture of a magnetic component, a step of bonding plate-like magnetic bodies forming a laminated core portion to each other can be omitted and the plate-like magnetic bodies can be less deformed by a fastening force of a conductive wire. The magnetic component includes a magnetic component body (20) including at least: at least two magnetic units (30) each including a bobbin (100) housing a laminated core portion (130) obtained by laminating a plurality of plate-like magnetic bodies (132), a coil portion (140) provided around an outer peripheral surface (102) of the bobbin (100), and a heat-resistant insulating sheet (150) covering an outer peripheral surface of the coil portion (140); a first connecting core portion (40) for connecting to each other ends on one side of the laminated core portions (130) respectively forming the at least two magnetic units (30) arranged parallel to each other; and a second connecting core portion (42) for connecting to each ends on another side of the laminated core portions (130) respectively forming the at least two magnetic units (30) arranged parallel to each other. An outer surface of the magnetic component body (20) is entirely covered with a varnish layer. Further, one surface of one plate-like magnetic body (132A) and one surface of another plate-like magnetic body (132B) arranged adjacent to the one plate-like magnetic body (132A) are substantially entirely held in direct contact with each other in a region (CL) of the laminated body, the region (CL) being positioned on an inner peripheral side of the coil portion (140), the one plate-like magnetic body (132A) and the another plate-like magnetic body (132B) forming the laminated body.

Anmelder

Firma

Sumida Corporation

Land

🇯🇵 Japan

Fachgebiete