Coil component

• US 8,922,317 B2
• Filed: 12/04/2012
• Issued: 12/30/2014
• Est. Priority Date: 12/15/2011
• Status: Active Grant

• Current Assignee: Sumida Corporation
• Original Assignee: Sumida Corporation
• Inventors: Yamada, Satoru, Kikuchi, Kazuyuki, Tahara, Yoshiyuki
• Primary Examiner(s): Chan, Tsz
• Application Number:
  US13/693,766
• Publication Number:
  US 20130154780A1
• Time in Patent Office: 756 Days
• Field of Search: 336/65, 336/83, 336/192, 336/200, 336/232
• US Class Current: 336/192
• CPC Class Codes: H01F 17/043 with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
• CPC Class Codes: H01F 27/29 Terminals; Tapping arrangements for signal inductances
• CPC Class Codes: H01F 27/292 Surface mounted devices

Abstract

A coil component including: a magnetic core which is formed by a magnetic material and which has a top surface, a bottom surface facing the top surface and a side surface continuous approximately perpendicularly to the top surface and the bottom surface; a coil which is buried inside the magnetic core and whose end portion protrudes from the side surface of the magnetic core; a flat-shaped terminal which protrudes from the side surface of the magnetic core, is bent toward the bottom surface of the magnetic core and is connected with the end portion of the coil, wherein there is formed an opening portion at a position corresponding to the place which is bent for the flat-shaped terminal from the side surface to the bottom surface of the magnetic core.

Claims

1. A coil component comprising:

a magnetic core which is formed by a magnetic material and which has a top surface, a bottom surface facing the top surface and a side surface continuous perpendicularly to the top surface and the bottom surface;

a coil which has a coil main body and a coil terminal extending from the coil main body, the coil main body being buried inside the magnetic core, the coil terminal protruding from the side surface of the magnetic core;

a flat-shaped terminal which protrudes from the side surface of the magnetic core, which is bent toward the bottom surface of the magnetic core and which is connected with the coil terminal;

an opening portion which is formed in the flat-shaped terminal at a position where the flat-shaped terminal is bent from the side surface to the bottom surface of the magnetic core; and

a conductive material that completely fills in the open portion.

2. The coil component according to claim 1, wherein one end of the coil terminal is cut at the opening portion of the flat-shaped terminal.

3. The coil component according to claim 1, wherein a melting point of the conductive material is higher than a melting point of a solder which is used when mounting the coil component to a board.

4. The coil component according to claim 1, wherein the opening portion of the flat-shaped terminal is in a rectangular shape.

5. The coil component according to claim 4, wherein the opening portion has a width of ⅓

or more of a width of the flat-shaped terminal.

6. The coil component according to claim 3, wherein

the conductive material is a high melting point solder.

7. The coil component according to claim 3, wherein

the solder is formed on the flat-shaped terminal that is located at both sides of the opening portion.