Coil component, high current indcutor, high current reactor inlcuding the same

Patent metadata

Field	Value
Publication number	US-2016240307-A1
Application number	US-201615019194-A
Country	US
Kind code	A1
Filing date	Feb 9, 2016
Priority date	Feb 12, 2015
Publication date	Aug 18, 2016
Grant date	—

Abstract

A coil component, a high current inductor including a coil component, and a high current reactor including a coil component are provided. The coil component may include a magnetic core, a bobbin that surrounds a portion of the magnetic core, and a coil wound on the bobbin. Accordingly, noise generated by friction between the magnetic core and the bobbin may be reduced.

First claim

What is claimed is:

1 . A coil component, comprising:
a magnetic core; a bobbin that surrounds a portion of the magnetic core; and a coil wound on the bobbin.

2 . The coil component of claim 1 , wherein the bobbin surrounds a portion of a side surface of the magnetic core.

3 . The coil component of claim 2 , wherein the bobbin surrounds an area of 40% to 90% of the side surface of the magnetic core.

4 . The coil component of claim 3 , wherein the bobbin surrounds an area of 50% to 80% of the side surface of the magnetic core.

5 . The coil component of claim 1 , further comprising:
an interlayer provided between the magnetic core and the bobbin.

6 . The coil component of claim 5 , wherein the interlayer includes at least one of silicon (Si) and an insulating material.

7 . The coil component of claim 6 , wherein the interlayer includes:
a film including a silicon-based polymer resin; and an insulating layer coated on both sides of the film.

8 . The coil component of claim 6 , wherein the interlayer is configured to have a rigidity higher than a rigidity of the magnetic core and the bobbin.

9 . The coil component of claim 1 , wherein the bobbin includes one of a plastic or a metal having an insulated surface.

10 . The coil component of claim 1 , wherein the magnetic core includes at least one of a Fe—Si—B-based magnetic power, a Fe—Ni-based magnetic power, a Fe—Si-based magnetic power, a Fe—Si—Al-based magnetic power, a Fe—Ni—Mo-based magnetic power, and a Fe—B—Si—Nb—Cu-based magnetic power.

11 . The coil component of claim 1 , wherein the bobbin includes:
a first bobbin that surrounds a first portion of a side surface of the magnetic core; and a second bobbin that is separate from the first bobbin and that surrounds a second portion of the side surface of the magnetic core.

12 . The coil component of claim 11 , wherein the first bobbin and the second bobbin are symmetrically provided on side surfaces of the magnetic core.

13 . A high current inductor for power factor correction including at least one coil component, the coil component comprising:
a magnetic core; a bobbin that surrounds a portion of the magnetic core; and a coil wound on the bobbin.

14 . The high current inductor of claim 13 , wherein the bobbin surrounds a portion of a side surface of the magnetic core.

15 . The high current inductor of claim 13 , further comprising:
an interlayer provided between the magnetic core and the bobbin.

16 . The high current inductor of claim 13 , wherein the bobbin includes:
a first bobbin that surrounds a first portion of a side surface of the magnetic core; and a second bobbin that is separate from the first bobbin and that surrounds a second portion of the side surface of the magnetic core.

17 . A high current reactor for power factor correction including at least one coil component, the coil component comprising:
a magnetic core; a bobbin that surrounds a portion of the magnetic core; and a coil wound on the bobbin.

18 . The high current reactor of claim 17 , wherein the bobbin surrounds a portion of a side surface of the magnetic core.

19 . The high current reactor of claim 17 , further comprising:
an interlayer provided between the magnetic core and the bobbin.

20 . The high current reactor of claim 17 , wherein the bobbin includes:
a first bobbin that surrounds a first portion of a side surface of the magnetic core; and a second bobbin that is separate from the first bobbin and that surrounds a second portion of the side surface of the magnetic core.

Assignees

• Lg Innotek Co Ltd

Inventors

• Yeom Jai Hoon
• Kim Soyeon
• Bae Seok
• Lee Sang Won
• Han Jong Soo

Classifications

• H01F27/255

  made from particles (H01F27/26 takes precedence) · CPC title

• H01F27/325 Primary

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

• H01F27/33 Primary

  Arrangements for noise damping · CPC title

• H01F27/306 Primary

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

• H01F37/00

  Fixed inductances not covered by group H01F17/00 · CPC title