Coil component

Patent metadata

Field	Value
Publication number	US-10692647-B2
Application number	US-201816021758-A
Country	US
Kind code	B2
Filing date	Jun 28, 2018
Priority date	Jun 29, 2017
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A coil component includes a non-conductive bobbin and a coil that winds around the bobbin. The coil includes first and second coil members with joining portions in which joining holes are formed. The bobbin includes first and second bobbin members. The first bobbin member includes: first and second positioning portions that position the first and second coil members, respectively, when the first and second coil members are moved onto the first bobbin member; and a support that supports lower portions of the first and second joining portions. The second bobbin member includes a first insulator disposed between the first and second coil members. The first and second coil members and the second bobbin member are attached to the first bobbin member by being moved in a single direction without a further step of rotating.

First claim

What is claimed is:

1. A coil component comprising:
a non-conductive bobbin; and
a coil that winds around the bobbin,
wherein the coil includes:
a first coil member with a first main body, which is formed in one of an arc shape and a spiral shape, and a first joint, which is provided at one end of the first main body and in which a first joining hole is formed; and
a second coil member with a second main body, which is formed in one of an arc shape and a spiral shape, and a second joint, which is provided at one end of the second main body and in which a second joining hole is formed,
wherein the second coil member is electrically connected to the first coil member via a screw that is inserted through the first and second joining holes of the first and second joints,
the bobbin includes a first bobbin member and a second bobbin member,
the first bobbin member includes: a base plate that has a first opening formed in a central portion thereof; a barrel that is erected on the base plate so as to connect to the first opening; a first positioner that positions the first coil member when the first coil member is moved along a center axis of the barrel from a front end of the barrel toward the base plate; a second positioner that positions the second coil member when the second coil member is moved along the center axis from the front end of the barrel toward the base plate; and a support that is provided on the base plate and is formed so as to surround and support lower portions of the first and second joints of the first and second coil members,
the second bobbin member includes a first insulator that is plate-shaped, has a second opening formed in a central portion thereof, and is disposed between the first and second coil members to insulate the first and second coil members from each other,
the first coil member is positioned by the first positioner in a state where the barrel is inserted through the first main body and the first coil member is disposed on the base plate, and the first joint is supported by the support,
the first insulator is disposed on the first coil member in a state where the barrel has been inserted through the second opening, and
the second coil member is positioned by the second positioner in a state where the barrel is inserted through the second main body and the second coil member is disposed on the first insulator, and the second joint is supported by the support.

2. The coil component according to claim 1 ,
wherein the second bobbin member includes a second insulator that is plate-shaped and has a third opening in a central portion thereof, and
the second insulator is disposed on the second coil member in a state where the barrel has been inserted through the third opening.

3. The coil component according to claim 2 ,
wherein the first and second insulators face each other at a distance and are integrated due to parts of edges of the first and second insulators being connected by a side wall.

4. The coil component according to claim 3 ,
wherein the second main body is formed in a spiral shape and has two rings that face each other at a distance, and
the second bobbin member includes a non-conductive holder that is formed in a flange shape that protrudes from an inner surface of the side wall, is inserted between the rings, and holds the rings in a separated state.

5. The coil component according to claim 1 ,
wherein the support functions as the first positioner and the second positioner.

6. The coil component according to claim 2 ,
wherein the support functions as the first positioner and the second positioner.

7. The coil component according to claim 3 ,
wherein the support functions as the first positioner and the second positioner.

8. The coil component according to claim 4 ,
wherein the support functions as the first positioner and the second positioner.

9. The coil component according to claim 1 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

10. The coil component according to claim 2 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

11. The coil component according to claim 3 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

12. The coil component according to claim 4 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

13. The coil component according to claim 5 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

14. The coil component according to claim 6 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

15. The coil component according to claim 7 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

16. The coil component according to claim 8 , further comprising:
a first core that has a first pillar inserted into a base end side of the barrel; and
a second core that has a second pillar inserted into the front end side of the barrel,
wherein the first bobbin member includes a third positioner that positions the first core.

17. The coil component according to claim 9 ,
wherein the second bobbin member includes a fourth positioner that positions the second core.

18. The coil component according to claim 10 ,
wherein the second bobbin member includes a fourth positioner that positions the second core.

19. The coil component according to claim 9 ,
wherein the third positioner positions the second core.

20. The coil component according to claim 10 ,
wherein the third positioner positions the second core.

Assignees

• Tdk Corp

Inventors

• Kan Masaki
• Wu Han

Classifications

• H01F27/303

  Clamping coils, windings or parts thereof together · CPC title

• H01F27/306

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

• H01F27/325 Primary

  Coil bobbins (formers for coils in general H01F5/02) · CPC title

• H01F27/2847

  Sheets; Strips (H01F27/2866 takes precedence) · CPC title

• H01F5/06

  Insulation of windings · CPC title