Coil component

Patent metadata

Field	Value
Publication number	US-11495385-B2
Application number	US-202016850949-A
Country	US
Kind code	B2
Filing date	Apr 16, 2020
Priority date	Apr 19, 2019
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

Abstract

A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.

First claim

What is claimed is:

1. A coil component comprising:
a core including a winding core portion that extends in a length direction of the coil component, a first flange portion that is disposed on a first end portion of the winding core portion in the length direction, and a second flange portion that is disposed on a second end portion of the winding core portion in the length direction;
a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion, the winding portion including an intersecting portion along a side surface of the winding core portion at a position on the winding portion nearest to the first flange portion or the second flange portion;
a first terminal electrode that is disposed on a bottom part of the first flange portion in a height direction of the coil component perpendicular to the length direction and that is connected to a first end portion of the first wire;
a second terminal electrode that is disposed on the bottom part of the first flange portion and that is connected to a first end portion of the second wire;
a third terminal electrode that is disposed on a bottom part of the second flange portion in the height direction and that is connected to a second end portion of the first wire; and
a fourth terminal electrode that is disposed on the bottom part of the second flange portion and that is connected to a second end portion of the second wire,
wherein
the first flange portion protrudes from the winding core portion in the height direction,
the first flange portion has a first slope that slopes in the height direction from the winding core portion toward the second terminal electrode, and
an extension portion of the second wire that extends from the winding portion is located along the first slope.

2. The coil component according to claim 1 , wherein
the first wire and the second wire that form the intersecting portion intersect each other at the position on the winding portion nearest to the second flange portion.

3. The coil component according to claim 2 , wherein
the intersecting portion is formed at an end portion of a winding portion near the second flange portion, the winding portion being nearest to the second flange portion among a plurality of the winding portions.

4. The coil component according to claim 3 , wherein
the winding portion is formed by winding the first wire and the second wire around the winding core portion so as to form layers.

5. The coil component according to claim 2 , wherein
the winding portion is formed by winding the first wire and the second wire around the winding core portion so as to form layers.

6. The coil component according to claim 1 , wherein
the first wire and the second wire that form the intersecting portion intersect each other at the position on the winding portion nearest to the first flange portion.

7. The coil component according to claim 6 , wherein
the intersecting portion is formed at an end portion of a winding portion near the first flange portion, the winding portion being nearest to the first flange portion among a plurality of the winding portions.

8. The coil component according to claim 7 , wherein
the winding portion is formed by winding the first wire and the second wire around the winding core portion so as to form layers.

9. The coil component according to claim 6 , wherein
the winding portion is formed by winding the first wire and the second wire around the winding core portion so as to form layers.

10. The coil component according to claim 1 , wherein
the winding portion is formed by winding the first wire and the second wire around the winding core portion so as to form layers.

11. A coil component comprising:
a core including a winding core portion that extends in a length direction of the coil component, a first flange portion that is disposed on a first end portion of the winding core portion in the length direction, and a second flange portion that is disposed on a second end portion of the winding core portion in the length direction;
a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion, the first wire having a first end portion and a second end portion, and the second wire having a first end portion and a second end portion;
a first terminal electrode that is disposed on a bottom part of the first flange portion in a height direction of the coil component perpendicular to the length direction and that is connected to the first end portion of the first wire;
a second terminal electrode that is disposed on the bottom part of the first flange portion and that is connected to the first end portion of the second wire;
a third terminal electrode that is disposed on a bottom part of the second flange portion in the height direction and that is connected to the second end portion of the first wire; and
a fourth terminal electrode that is disposed on the bottom part of the second flange portion and that is connected to the second end portion of the second wire,
wherein
the first wire includes a first extension portion that connects the winding portion and the first end portion of the first wire to each other, and a second extension portion that connects the winding portion and the second end portion of the first wire to each other,
the second wire includes a third extension portion that connects the winding portion and the first end portion of the second wire to each other, and a fourth extension portion that connects the winding portion and the second end portion of the second wire to each other,
the first flange portion protrudes from the winding core portion in the height direction,
the first flange portion has a first slope that slopes in the height direction from the winding core portion toward the second terminal electrode,
the third extension portion of the second wire extends from the winding portion and is located along the first slope, and
at least one of the following:
when the coil component is viewed in the height direction in front of a bottom surface, the first end portion of the second wire extends in the length direction, and a first bent portion that is bent from a part of the first end portion of the second wire at a position on the first flange portion near the winding core portion toward an opposite side from the winding core portion, and a second bent portion that is bent in a direction opposite a direction in which the first bent portion is bent and that is connected to the third extension portion, are formed between the first end portion of the second wire and the third extension portion of the second wire, and
when the coil component is viewed in the height direction in front of the bottom surface, the second end portion of the first wire extends in the length direction, and a third bent portion that is bent from a part of the second end portion of the first wire at a position on the second flange portion near the winding core portion toward an opposite side from the winding core portion, and a fourth bent portion that is bent in the direction opposite the direction in which the first bent portion is bent and that is connected to the second extension portion, are formed between the second end portion of the first wire and the second extension portion of the first wire.

12. The coil component according to claim 11 , wherein
the second wire includes the first bent portion and the second bent portion, and
the first wire does not include the third bent portion and the fourth bent portion.

Assignees

• Murata Manufacturing Co

Inventors

• Itani Yasuhiro
• Sukegawa Takashi
• Suzuki Takanori
• Kitadai Yuuki
• Maki Yoshifumi
• MATSUBA Reiichi

Classifications

• H01F27/2823

  Wires (H01F27/2866 takes precedence) · CPC title

• H01F27/292

  Surface mounted devices · CPC title

• H01F2017/0093

  Common mode choke coil · CPC title

• H01F27/2828

  Construction of conductive connections, of leads · CPC title

• H01F27/027

  specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards · CPC title