IP Library Granted Patent US 9,202,620
Granted Patent B2
US 9,202,620 · App. 14/444,304 · Granted Dec 1, 2015

Coil component

Inventors: Kazunori Arimitsu (Tokyo, JP); Hiroshi Suzuki (Tokyo, JP); Yuma Komaya (Tokyo, JP); Hideki Sasaki (Tokyo, JP); Tomonao Suto (Tokyo, JP); Joern Schliewe (Steinheim, DE); Joachim Nassal (Heidenheim, DE); Anneliese Drespling (Heidenheim, DE)
Assignees: TDK CORPORATION; EPCOSAG
H01F27/29H01F17/045H01F27/292
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Quick Facts
Patent No.
US 9,202,620
App. No.
14/444,304
Granted
Dec 1, 2015
Kind
B2
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 (14)

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 first flange portion of the pair of flange portions, 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, the wire fixing portion and the wire connecting portion being located on a same side with respect to the first flange portion,

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

wherein the wire fixing portion includes a planar surface;

the wire connecting portion includes a planar surface;

the planar surface of the wire fixing portion and the planar surface of the wire connecting portion are parallel and side by side with each other and face the side surface of the first flange portion; and

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

4. The coil component according to claim 1 ,

wherein the core portion elongates between the pair of flange portions in a longitudinal direction, and

the metal terminal further comprises an end face portion, the wire connecting portion being located between the end-face portion and the wire fixing portion in the longitudinal direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2014
From: ARIMITSU, KAZUNORI; SUZUKI, HIROSHI; KOMAYA, YUMA; SASAKI, HIDEKI; SUTO, TOMONAO; SCHLIEWE, JOERN; NASSAL, JOACHIM; DRESPLING, ANNELIESE
To: TDK CORPORATION; EPCOS AG
Reel/Frame 034108/0049 →
Priority Claims (1)
JP 2013-165039 · Aug 8, 2013 · national
Continuity (1)
Related Publication 20150042436A1 · Feb 12, 2015