Electronic component

Patent metadata

Field	Value
Publication number	US-10147535-B2
Application number	US-201515112085-A
Country	US
Kind code	B2
Filing date	Jan 23, 2015
Priority date	Jan 31, 2014
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A coil is formed by winding an electrically-conductive wire, and is buried in a molded body formed from a composite magnetic material containing a magnetic powder and a resin. Each of led-out ends of the coil has a cut surface formed by obliquely cutting an electrically-conductive wire with respect to a surface thereof. The cut surface of each led-out end of the coil is exposed on a surface of the molded body, and each led-out end is connected to an external terminal electrode formed in the surface of the molded body at the cut surface.

First claim

The invention claimed is:

1. An electronic component comprising a coil formed by winding an electrically-conductive wire and a molded body formed from a composite magnetic material containing a magnetic powder and a resin, in which the coil is buried in the molded body,
wherein the coil has led-out ends, each having a cut surface formed by obliquely cutting the electrically-conductive wire with respect to a surface thereof, and wherein the cut surface is exposed on a surface of the molded body, and each of the led-out ends is connected to an external terminal electrode formed in the surface of the molded body at the cut surface,
wherein a led-out angle A of each of the led-out ends with respect to the surface of the molded body is from 150 degrees to 160 degrees, and
wherein each of the led-out ends have a bent portion in the molded body.

2. The electronic component as defined in claim 1 , wherein the coil is formed by winding an electrically-conductive wire to allow its led-out ends to be positioned on an outer periphery of a wound portion, and leading out the led-out ends from the outer periphery of the wound portion in opposite directions with respect to each other.

3. The electronic component as defined in claim 1 , wherein the cut surface of each of the led-out ends of the coil is in contact with the external terminal electrode in its entirety.

4. The electronic component as defined in claim 2 , wherein the cut surface of each of the led-out ends of the coil is in contact with the external terminal electrode in its entirety.

5. An electronic component comprising: a coil formed by winding an electrically-conductive wire; and a molded body formed from a composite magnetic material containing a magnetic powder and a resin, in which the coil is buried in the molded body,
wherein the coil has led-out ends, each having a cut surface formed by obliquely cutting the electrically-conductive wire with respect to a surface thereof,
wherein each of the led-out ends of the coil is led out from an outer periphery of a wound portion of the coil in such a manner as to allow its led-out angle to be 150 degrees to 160 degrees with respect to a surface of the molded body,
wherein the cut surface is exposed on a surface of the molded body, and each of the led-out ends is connected to an external terminal electrode formed in the surface of the molded body at the cut surface, and
wherein each of the led-out ends have a bent portion in the molded body.

6. The electronic component as defined in claim 5 , wherein the coil is formed by winding an electrically-conductive wire to allow its led-out ends to be positioned on an outer periphery of a wound portion, and leading out the led-out ends from the outer periphery of the wound portion in opposite directions with respect to each other.

7. The electronic component as defined in claim 5 , wherein the cut surface of each of the led-out ends of the coil is in contact with the external terminal electrode in its entirety.

8. The electronic component as defined in claim 6 , wherein the cut surface of each of the led-out ends of the coil is in contact with the external terminal electrode in its entirety.

Assignees

• Toko Inc
• Murata Manufacturing Co

Inventors

• Suzuki Hironori
• Kawachi Takao

Classifications

• H01F17/04

  with magnetic core · CPC title

• H01F27/29

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H01F27/2828 Primary

  Construction of conductive connections, of leads · CPC title

• H01F2017/048

  with encapsulating core, e.g. made of resin and magnetic powder · CPC title

• H01F27/255

  made from particles (H01F27/26 takes precedence) · CPC title