Coil component

Patent metadata

Field	Value
Publication number	US-11626238-B2
Application number	US-202016751725-A
Country	US
Kind code	B2
Filing date	Jan 24, 2020
Priority date	Jan 28, 2019
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

Disclosed herein is a coil component that includes a winding core part, and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. A i-th (i is an integer equal to or larger than 1) turn, a (i+1) turn, and a (i+2) turn of each of the first and second wires are positioned in mutually different winding layers.

First claim

What is claimed is:

1. A coil component comprising:
a winding core part; and
first and second wires wound around the winding core part,
wherein the first and second wires constitute at least three winding layers on the winding core part, and
wherein an i-th (i is an integer equal to or larger than 4) turn, an (i+1) turn, and an (i+2) turn of each of the first and second wires are positioned in mutually different winding layers,
wherein the first and second wires constitute three winding layers including, in order of proximity from the winding core part, a lower layer, an intermediate layer, and an upper layer,
wherein the i-th turn of each of the first and second wires are wound in the lower layer,
wherein the (i-th+1) turn of each of the first and second wires are wound in the intermediate layer,
wherein the (i-th+2) turn of each of the first and second wires are wound in the upper layer,
wherein an (i-th+4) turn of the first wire is wound along a valley line formed by the i-th turn of the first wire and the i-th turn of the second wire, and
wherein an (i-th+5) turn of the first wire is wound along a valley line formed by the (i-th+1) turn of the first wire and the (i-th+1) turn of the second wire.

2. The coil component as claimed in claim 1 ,
wherein an (i-th+4) turn of the second wire is wound along a valley line formed by an (i-th+3) turn of the first wire and the i-th turn of the second wire, and
wherein an (i-th+5) turn of the second wire is wound along a valley line formed by an (i-th+4) turn of the first wire and the (i-th+1) turn of the second wire.

3. The coil component as claimed in claim 1 ,
wherein the first and second wires constitute four winding layers including, in order of proximity from the winding core part, a lower layer, a first intermediate layer, a second intermediate layer, and an upper layer,
wherein the i-th turn of each of the first and second wires are wound in the lower layer,
wherein the (i-th+1) turn of each of the first and second wires are wound in the first intermediate layer,
wherein the (i-th+2) turn of each of the first and second wires are wound in the second intermediate layer, and
wherein a (i-th+3) turn of each of the first and second wires are wound in the upper layer.

4. The coil component as claimed in claim 3 ,
wherein a (i-th+5) turn of the first wire is wound along a valley line formed by the i-th turn of the first wire and the i-th turn of the second wire,
wherein a (i-th+6) turn of the first wire is wound along a valley line formed by the (i-th+1) turn of the first wire and the (i-th+1) turn of the second wire, and
wherein a (i-th+7) turn of the first wire is wound along a valley line formed by the (i-th+2) turn of the first wire and the (i-th+2) turn of the second wire.

5. The coil component as claimed in claim 4 ,
wherein a (i-th+5) turn of the second wire is wound along a valley line formed by a (i-th+4) turn of the first wire and the i-th turn of the second wire,
wherein a (i-th+6) turn of the second wire is wound along a valley line formed by the (i-th+5) turn of the first wire and the (i-th+1) turn of the second wire, and
wherein a (i-th+7) turn of the second wire is wound along a valley line formed by the (i-th+6) turn of the first wire and the (i-th+2) turn of the second wire.

6. The coil component as claimed in claim 3 ,
wherein a (i-th+9) turn of the first wire is wound along a valley line formed by the i-th turn of the first wire and the i-th turn of the second wire,
wherein a (i-th+6) turn of the first wire is wound along a valley line formed by the (i-th+1) turn of the first wire and the (i-th+1) turn of the second wire, and
wherein a (i-th+7) turn of the first wire is wound along a valley line formed by the (i-th+2) turn of the first wire and the (i-th+2) turn of the second wire.

7. The coil component as claimed in claim 6 ,
wherein a (i-th+9) turn of the second wire is wound along a valley line formed by a (i-th+4) turn of the first wire and the i-th turn of the second wire,
wherein a (i-th+6) turn of the second wire is wound along a valley line formed by the (i-th+5) turn of the first wire and the (i-th+1) turn of the second wire, and
wherein a (i-th+7) turn of the second wire is wound along a valley line formed by the (i-th+6) turn of the first wire and the (i-th+2) turn of the second wire.

8. The coil component as claimed in claim 1 , further comprising:
a flange part; and
a terminal electrode provided on the flange part and connected with one ends of the first and second wires,
wherein the one ends of the first and second wires are short-circuited through the terminal electrode.

9. A coil component comprising:
a winding core part; and
first and second wires wound around the winding core part,
wherein the first and second wires constitute at least three winding layers on the winding core part, and
wherein an i-th (i is an integer equal to or larger than 4) turn, an (i+1) turn, and an (i+2) turn of each of the first and second wires are positioned in mutually different winding layers,
wherein the first and second wires constitute three winding layers including, in order of proximity from the winding core part, a lower layer, an intermediate layer, and an upper layer,
wherein the i-th turn of each of the first and second wires are wound in the lower layer,
wherein the (i-th+1) turn of each of the first and second wires are wound in the intermediate layer,
wherein the (i-th+2) turn of each of the first and second wires are wound in the upper layer,
wherein an (i-th+7) turn of the first wire is wound along a valley line formed by the i-th turn of the first wire and the i-th turn of the second wire, and
wherein an (i-th+5) turn of the first wire is wound along a valley line formed by the (i-th+1) turn of the first wire and the (i-th+1) turn of the second wire.

10. The coil component as claimed in claim 9 ,
wherein an (i-th+7) turn of the second wire is wound along a valley line formed by an (i-th+3) turn of the first wire and the i-th turn of the second wire, and
wherein an (i-th+5) turn of the second wire is wound along a valley line formed by an (i-th+4) turn of the first wire and the (i-th+1) turn of the second wire.

Assignees

• Tdk Corp

Inventors

• Yoshino Hanako
• Suzuki Hiroshi
• Urabe Daisuke
• Higashida Keigo
• Tsuchiya Tomokazu

Classifications

• H01F27/2823 Primary

  Wires (H01F27/2866 takes precedence) · CPC title

• H01F41/069

  Winding two or more wires, e.g. bifilar winding · CPC title

• H01F27/29

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H01F27/34

  Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields · CPC title

• H01F27/24

  Magnetic cores · CPC title