COIL COMPONENT

• US 20150042436A1
• Filed: 07/28/2014
• Published: 02/12/2015
• Est. Priority Date: 08/08/2013
• Status: Active Grant

• Current Assignee: Epcos AG (TDK Corporation), TDK Corporation
• Original Assignee: Epcos AG (TDK Corporation), TDK Corporation
• Inventors: ARIMITSU, Kazunori, SUZUKI, Hiroshi, KOMAYA, Yuma, SASAKI, Hideki, SUTO, Tomonao, SCHLIEWE, Joern, NASSAL, Joachim, DRESPLING, Anneliese
• Granted Patent: US 9,202,620 B2
• Time in Patent Office: Days
• US Class Current: 336/192
• 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 27/29 Terminals; Tapping arrangements for signal inductances
• CPC Class Codes: H01F 27/292 Surface mounted devices

Abstract

In a coil component, a shortest distance from a longitudinal wall of a flange portion of a drum core to a wire fixing portion is smaller than a shortest distance of the longitudinal wall to an electrode wire connecting portion by a convex portion formed at the longitudinal wall of the flange portion. That is, since a gap between the flange portion of the drum core and the wire fixing portion is small (or there is no gap), the wire fixing portion can be sufficiently bent. Accordingly, the wire can be securely fixed by a wire fixing portion of a metal terminal.

Claims

1. A coil component comprising:

a drum core having a pair of flange portions having a mounting surface enabling to face to a mounting substrate and side surfaces crossing the mounting surface, and a core portion configured to connect the pair of flange portions to each other;

a wire wound on the core portion of the drum core; and

a metal terminal having a mounting portion disposed at the mounting surface of the flange portion, a wire fixing portion configured to fix the wire and extending from the mounting portion, and a wire connecting portion welded to an end of the wire,

wherein a shortest distance from the side surface of the flange portion to the wire fixing portion is smaller than a shortest distance from the side surface of the flange portion to the wire connecting portion.

2. The coil component according to claim 1, wherein a convex portion is formed at a surface region corresponding to the wire fixing portion of the side surfaces of the flange portion.

3. The coil component according to claim 2, wherein the convex portion is inclined such that a width of the convex increases away from the mounting surface.