Coil component

Patent metadata

Field	Value
Publication number	US-11636969-B2
Application number	US-202016751637-A
Country	US
Kind code	B2
Filing date	Jan 24, 2020
Priority date	Jan 28, 2019
Publication date	Apr 25, 2023
Grant date	Apr 25, 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. The same turns of the first and second wires are positioned in mutually different winding layers over a plurality of turns.

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 same turns of the first and second wires are positioned in mutually different winding layers over a plurality of turns,
wherein the at least three winding layers include a lower layer closest to the winding core part, an upper layer farther away from the winding core part than the lower layer, and at least one intermediate layer positioned between the lower and upper layers,
wherein the lower layer includes the first wire,
wherein the upper layer includes the second wire,
wherein the intermediate layer includes the first and second wires in a mixed manner,
wherein an i-th turn (i is an integer equal to or larger than 5) and an (i-th+1) turn of the first wire are wound in the lower layer,
wherein an (i-th+2) turn of the first wire and an (i-th+1) turn of the second wire are wound in the intermediate layer, and
wherein an i-th turn and a (i-th+2) turn of the second wire are wound in the upper layer.

2. The coil component as claimed in claim 1 ,
wherein the first wire is continuously wound in the lower layer in an aligned state,
wherein the second wire is continuously wound in the upper layer in an aligned state, and
wherein the first and second wires are alternately wound in the intermediate layer.

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

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

5. The coil component as claimed in claim 1 , wherein the intermediate layer includes a first intermediate layer positioned on the lower layer side and a second intermediate layer positioned on the upper layer side, whereby the first and second wires constitute at least four winding layers.

6. The coil component as claimed in claim 5 ,
wherein the first wire is continuously wound in the lower layer in an aligned state,
wherein the second wire is continuously wound in the upper layer in an aligned state, and
wherein the first and second wires are alternately wound in the first and second intermediate layers.

7. The coil component as claimed in claim 6 ,
wherein an i-th turn (i is an integer equal to or larger than 8) and an (i-th+1) turn of the first wire are wound in the lower layer,
wherein an (i-th+2) turn of the first wire and an (i-th+1) turn of the second wire are wound in the first intermediate layer,
wherein an (i-th+3) turn of the first wire and an (i-th+2) turn of the second wire are wound in the second intermediate layer, and
wherein an i-th turn and an (i-th+3) turn of the second wire are wound in the upper layer.

8. The coil component as claimed in claim 7 , wherein the (i-th+3) 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+1) turn of the second wire.

9. The coil component as claimed in claim 8 ,
wherein an (i-th+4) turn of the second wire is wound along a valley line formed by the (i-th+3) turn of the first wire and the (i-th+2) turn of the second wire,
wherein an (i-th+5) turn of the second wire is wound along a valley line formed by the i-th turn and the (i-th+1) turn of the first wire, and
wherein an (i-th+6) turn of the second wire is wound along a valley line formed by the (i-th+2) turn of the first wire and the (i-th+5) turn of the second wire.

10. The coil component as claimed in claim 5 ,
wherein the first wire is continuously wound in the lower layer and first intermediate layer in an aligned state, and
wherein the second wire is continuously wound in the upper layer and second intermediate layer in an aligned state.

11. The coil component as claimed in claim 10 ,
wherein an i-th turn (i is an integer equal to or larger than 5) and an (i-th+2) turn of the first wire are wound in the lower layer,
wherein an (i-th+1) turn and an (i-th+3) turn of the first wire are wound in the first intermediate layer,
wherein an i-th turn and an (i-th+2) turn of the second wire are wound in the second intermediate layer, and
wherein an (i-th+1) turn and an (i-th+3) turn of the second wire are wound in the upper layer.

12. The coil component as claimed in claim 11 ,
wherein the (i-th+3) turn of the first wire is wound along a valley line formed by the i-th turn and the (i-th+2) turn of the first wire, and
wherein the (i-th+3) turn of the second wire is wound along a valley line formed by the i-th turn and the (i-th+2) turn of the second wire.

13. The coil component as claimed in claim 12 ,
wherein an (i-th+4) turn of the second wire is wound along a valley line formed by the (i-th+1) turn and the (i-th+3) turn of the first wire, and
wherein an (i-th+5) turn of the second wire is wound along a valley line formed by the (i-th+2) turn and the (i-th+4) turn of the second wire.

14. 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.

15. A coil component comprising:
a winding core part;
a flange part;
a terminal electrode provided on the flange part; and
first and second wires wound around the winding core part,
wherein one ends of the first and second wire are connected to the terminal electrode,
wherein each of the first and second wires has first, second, and third turns counting from the one end,
wherein the first turn of the second wire, the first turn of the first wire, the second turn of the first wire, and the third turn of the first wire are wound in this order around the winding core part in an aligned state,
wherein the second turn of the second wire is wound around a valley line formed by the first turn of the second wire and the first turn of the first wire, and
wherein the third turn of the second wire is wound around a valley line formed by the first turn of the first wire and the second turn of the first wire,
wherein each of the first and second wires further has a fourth turn counting from the one end
wherein the fourth turn of the first wire is wound around a valley line formed by the second turn of the first wire and the third turn of the first wire, and
wherein the fourth turn of the second wire is wound around a valley line formed by the second turn of the second wire and the third turn of the second wire.

16. The coil component as claimed in claim 15 ,
wherein each of the first and second wires further has fourth and fifth turns counting from the one end,
wherein the fourth turn of the first wire is wound adjacent to the third turn of the first wire around the winding core part,
wherein the fourth turn of the second wire is wound around a valley line formed by the second turn of the first wire and the third turn of the first wire,
wherein the fifth turn of the first wire is wound around a valley line formed by the third turn of the first wire and the fourth turn of the first wire, and
wherein the fifth turn of the second wire

Assignees

• Tdk Corp

Inventors

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

Classifications

• H01F27/29

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

• H01F27/306

  Fastening or mounting coils or windings on core, casing or other support · CPC title

• H01F27/2823

  Wires (H01F27/2866 takes precedence) · CPC title

• H01F41/069

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

• H01F27/263

  Fastening parts of the core together · CPC title