Electronic Component

• US 20160343501A1
• Filed: 01/23/2015
• Published: 11/24/2016
• Est. Priority Date: 01/31/2014
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: TOKO Incorporated (Murata Manufacturing Co Limited)
• Inventors: KAWACHI, Takao, SUZUKI, Hironori
• Granted Patent: US 10,147,535 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01F 17/04 with magnetic core
• CPC Class Codes: H01F 2017/048 with encapsulating core, e.g. made of resin and magnetic powder
• CPC Class Codes: H01F 27/255 made from particles H01F27/26 takes precedence
• CPC Class Codes: H01F 27/2828 Construction of conductive connections, of leads
• CPC Class Codes: H01F 27/29 Terminals; Tapping arrangements for signal inductances
• CPC Class Codes: H01F 27/292 Surface mounted devices
• CPC Class Codes: H01F 5/00 Coils superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00

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.

Claims

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.

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 coil has no discontinuous bentness at its led-out ends.

4. The electronic component as defined in claim 2, wherein the coil has no discontinuous bentness at its led-out ends.

5. 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.

6. 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.

7. The electronic component as defined in claim 3, 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 4, 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.

9. 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 greater than 90 degrees with respect to a surface of the molded body, 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.

10. The electronic component as defined in claim 9, 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.

11. The electronic component as defined in claim 9, wherein the coil has no discontinuous bentness at its led-out ends.

12. The electronic component as defined in claim 10, wherein the coil has no discontinuous bentness at its led-out ends.

13. The electronic component as defined in claim 9, 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.

14. The electronic component as defined in claim 10, 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.

15. The electronic component as defined in claim 11, 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.

16. The electronic component as defined in claim 12, 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.