Coil component

Patent metadata

Field	Value
Publication number	US-11798729-B2
Application number	US-201916721616-A
Country	US
Kind code	B2
Filing date	Dec 19, 2019
Priority date	Jan 28, 2019
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

A coil component includes a core including a winding core portion, a first wire, a second wire, a third wire, and a fourth wire that are wound around the winding core portion. A winding portion is formed by winding the respective first to fourth wires around the winding core portion. The winding portion includes a twisted wire portion in which the first wire, the second wire, the third wire, and the fourth wire are collectively twisted.

First claim

What is claimed is:

1. A coil component comprising:
a core including a winding core portion; and
a first wire, a second wire, a third wire, and a fourth wire wound around the winding core portion,
wherein
a winding portion is formed by winding the first wire, the second wire, the third wire, and the fourth wire around the winding core portion,
the winding portion includes a twisted wire portion in which the first wire, the second wire, the third wire, and the fourth wire are collectively twisted,
the winding portion is formed of an antinodal portion in which the first, second, third and fourth wires are arranged adjacently to each other and in direct contact with the surface of the winding core portion when viewed from the vertical direction with respect to the peripheral surface of the winding core portion such that the first wire is adjacent to and in direct contact with the fourth wire while being wound around the winding core portion.

2. The coil component according to claim 1 , wherein
a twist number of the first wire, a twist number of the second wire, a twist number of the third wire, and a twist number of the fourth wire in the twisted wire portion are mutually equal.

3. The coil component according to claim 1 , wherein
in the twisted wire portion, the first wire, the second wire, the third wire, and the fourth wire are collectively twisted a plurality of times, and
twisting directions of the twisted wire portion are the same direction.

4. The coil component according to claim 3 , wherein
positional relationships among the first wire, the second wire, the third wire and the fourth wire in the twisted wire portion are constant.

5. The coil component according to claim 1 , wherein
the winding portion is configured such that a length of a portion wound around the winding core portion in the first wire, a length of a portion wound around the winding core portion in the second wire, a length of a portion wound around the winding core portion in the third wire, and a length of a portion wound around the winding core portion in the fourth wire are mutually equal.

6. The coil component according to claim 1 , wherein
the coil component is a surface-mount type coil component.

7. The coil component according to claim 1 , wherein
the first wire, the second wire, the third wire, and the fourth wire form a coil having a lateral winding structure.

8. The coil component according to claim 1 , wherein
in the winding portion, the first wire, the second wire, the third wire, and the fourth wire are electrically insulated from one another.

9. The coil component according to claim 1 , wherein
each of the first wire, the second wire, the third wire, and the fourth wire has one end portion and an other end portion,
in a state where the coil component is mounted on a circuit board on which a first wiring pattern and a second wiring pattern are formed,
the other end portion of the first wire and the one end portion of the third wire are electrically connected to each other with the first wiring pattern interposed between the other end portion of the first wire and the one end portion of the third wire, and
the one end portion of the second wire and the other end of the fourth wire are electrically connected to each other with the second wiring pattern interposed between the one end portion of the second wire and the other end portion of the fourth wire.

10. The coil component according to claim 2 , wherein
in the twisted wire portion, the first wire, the second wire, the third wire, and the fourth wire are collectively twisted a plurality of times, and
twisting directions of the twisted wire portion are the same direction.

11. The coil component according to claim 2 , wherein
the winding portion is configured such that a length of a portion wound around the winding core portion in the first wire, a length of a portion wound around the winding core portion in the second wire, a length of a portion wound around the winding core portion in the third wire, and a length of a portion wound around the winding core portion in the fourth wire are mutually equal.

12. The coil component according to claim 3 , wherein
the winding portion is configured such that a length of a portion wound around the winding core portion in the first wire, a length of a portion wound around the winding core portion in the second wire, a length of a portion wound around the winding core portion in the third wire, and a length of a portion wound around the winding core portion in the fourth wire are mutually equal.

13. The coil component according to claim 4 , wherein
the winding portion is configured such that a length of a portion wound around the winding core portion in the first wire, a length of a portion wound around the winding core portion in the second wire, a length of a portion wound around the winding core portion in the third wire, and a length of a portion wound around the winding core portion in the fourth wire are mutually equal.

14. The coil component according to claim 2 , wherein
the coil component is a surface-mount type coil component.

15. The coil component according to claim 3 , wherein
the coil component is a surface-mount type coil component.

16. The coil component according to claim 2 , wherein
the first wire, the second wire, the third wire, and the fourth wire form a coil having a lateral winding structure.

17. The coil component according to claim 3 , wherein
the first wire, the second wire, the third wire, and the fourth wire form a coil having a lateral winding structure.

18. The coil component according to claim 2 , wherein
in the winding portion, the first wire, the second wire, the third wire, and the fourth wire are electrically insulated from one another.

19. The coil component according to claim 3 , wherein
in the winding portion, the first wire, the second wire, the third wire, and the fourth wire are electrically insulated from one another.

20. The coil component according to claim 2 , wherein
each of the first wire, the second wire, the third wire, and the fourth wire has one end portion and an other end portion,
in a state where the coil component is mounted on a circuit board on which a first wiring pattern and a second wiring pattern are formed,
the other end portion of the first wire and the one end portion of the third wire are electrically connected to each other with the first wiring pattern interposed between the other end portion of the first wire and the one end portion of the third wire, and
the one end portion of the second wire and the other end of the fourth wire are electrically connected to each other with the second wiring pattern interposed between the one end portion of the second wire and the other end portion of the fourth wire.

21. The coil component according to claim 1 , wherein
the winding core portion has a cross-sectional shape having more than 4 sides when viewed along an axis of the core.

Assignees

• Murata Manufacturing Co

Inventors

• Igarashi Akio

Classifications

• H01F27/2823 Primary

  Wires (H01F27/2866 takes precedence) · CPC title

• H01F17/045

  with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core · CPC title

• H01F27/24

  Magnetic cores · CPC title

• H01F41/07

  Twisting · CPC title

• H01F2027/2838

  using transposed wires · CPC title