Coil component

• US 10,262,787 B2
• Filed: 08/10/2017
• Issued: 04/16/2019
• Est. Priority Date: 09/08/2016
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Igarashi, Akio, Onishi, Koji
• Primary Examiner(s): Lian, Mang Tin Bik
• Application Number:
  US15/673,920
• Publication Number:
  US 20180068781A1
• Time in Patent Office: 614 Days
• Field of Search: 336192, 336 83, 336212
• CPC Class Codes: H01F 17/045 with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
• CPC Class Codes: H01F 27/2823 Wires H01F27/2866 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

Abstract

A coil component includes a conducting wire and a terminal electrode. The terminal electrode includes a first terminal piece and a second terminal piece that face and overlap each other with the conducting wire interposed therebetween. The first terminal piece and the second terminal piece are coupled to one another with a coupling portion and are integrated in a welded ball at a position different from a position of the coupling portion. An end portion of the conducting wire is in the welded ball.

Claims

1. A coil component comprising:

a conducting wire having a substantially helical shape; and

a terminal electrode electrically connected to an end portion of the conducting wire,

wherein the terminal electrode includes first and second terminal pieces that face and overlap each other with the conducting wire interposed therebetween, the first and second terminal pieces are coupled to one another with a coupling portion, and the first and second terminal pieces are in contact with and integrated in a welded ball at a position different from a position of the coupling portion, and

wherein the end portion of the conducting wire is in the welded ball.

2. The coil component according to claim 1, wherein the end portion of the conducting wire and the first and second terminal pieces are integrated in the welded ball.

3. The coil component according to claim 1, further comprising:

a core including

a winding portion, and

a flange portion provided at an end portion of the winding portion,

wherein the conducting wire is wound around the winding portion in the substantially helical shape, and

wherein the terminal electrode is arranged on the flange portion.

4. The coil component according to claim 1, wherein the welded ball is positioned at distal end portions of the first and second terminal pieces.

5. The coil component according to claim 3, wherein the welded ball is positioned at distal end portions of the first and second terminal pieces and protruding from the flange portion.