# US 2021/0241960 A1 · Inductor component

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- Number: US 2021/0241960 A1
- Document ID: US20210241960A1
- Status: Published application
- Kind: A1
- Application number: 17/235,762
- Filed: 2021-04-20
- Published: 2021-08-05
- Earliest claimed: 2016-12-26
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Masashi MIYAMOTO
- Web page: https://patentgrep.com/patent/US20210241960A1

## CPC

- H01F 27/24: Magnetic cores
- H01F 5/04: Arrangements of electric connections to coils, e.g. leads
- H01F 27/292: {Surface mounted devices}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

An inductor component includes a drum core including a winding core portion extending along a longitudinal direction and a pair of flange portions disposed on end portions of the winding core portion, a plate core bonded to the pair of flange portions, and a wire wound around the winding core portion. The drum core and the plate core are made of a magnetic material. An average distance between the plate core and the pair of flange portions is no less than about 20 μm and no more than about 50 μm. The wire includes aligned banked winding portions arranged along the longitudinal direction and more than half of a total number of turns of the wire belong to the aligned banked winding portions.

## Claims

### Claim 1

An inductor component comprising:
a drum core including a winding core portion extending along a longitudinal direction and a pair of flange portions disposed on end portions of the winding core portion; and
a wire wound around the winding core portion,
wherein
the wire includes aligned banked winding portions arranged along the longitudinal direction of the winding core portion,
more than half of a total number of turns of the wire belong to the aligned banked winding portions, and
the wire includes a plurality of kinds of the aligned banked winding portions.

### Claim 2 (depends on 1)

The inductor component according to claim 1, wherein a number of turns of the wire in a lowest layer that is wound in contact with the winding core portion is four or less in each of the aligned banked winding portions.

### Claim 3 (depends on 1)

The inductor component according to claim 1, wherein an interval between adjacent aligned banked winding portions along the longitudinal direction of the winding core portion is no more than about 30 μm.

### Claim 4 (depends on 1)

The inductor component according to claim 1, wherein the wire includes a portion wound in single layer between the aligned banked winding portions.

### Claim 5 (depends on 1)

The inductor component according to claim 1, further comprising:
a pair of terminal electrodes being electrically connected to the end portions of the wire and being disposed on mounting surfaces of the pair of flange portions, the mounting surfaces facing a mounting board side,
wherein connected portions where the end portions of the wire are connected to the terminal electrodes are positioned on opposite sides in a direction substantially orthogonal to the longitudinal direction of the winding core portion on the mounting surfaces.

### Claim 6 (depends on 1)

The inductor component according to claim 1, wherein at least one of end turns of the wire is wound in a single layer.

### Claim 7 (depends on 1)

The inductor component according to claim 1, further comprising:
a plate core bonded to the pair of flange portions,
wherein one of the plate core and the pair of flange portions has a protrusion which is in contact with the other of the plate core and the pair of flange portions.