Coil component and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-2018286560-A1
Application number	US-201715818130-A
Country	US
Kind code	A1
Filing date	Nov 20, 2017
Priority date	Mar 30, 2017
Publication date	Oct 4, 2018
Grant date	—

Abstract

A coil component includes a body having a winding coil and a plurality of guide members therein. The guide members are spaced apart from each other along an outer periphery of the winding coil, and each of the guide members has an exposed surface exposed externally of the body. A method for manufacturing a coil component includes seating opposing ends of a winding coil on a support member of a frame having guide members restricting movement of the winding coil relative to the frame. A body is formed that embeds the winding coil and at least a portion of each of the guide members therein, and the guide members restrict movement of the winding coil during the forming of the body.

First claim

What is claimed is:

1 . A coil component, comprising:
a body having a winding coil and a plurality of guide members therein, wherein the guide members are spaced apart from each other along an outer periphery of the winding coil, and each of the guide members has an exposed surface exposed externally of the body.

2 . The coil component of claim 1 , wherein the exposed surface of each guide member is formed as a cut surface.

3 . The coil component of claim 1 , wherein at least a portion of each guide member is not in contact with the winding coil.

4 . The coil component of claim 1 , wherein the number of the guide members in the body of the coil component is 4 to 16.

5 . The coil component of claim 1 , wherein a width of each guide member ranges from 0.03 mm to 0.3 mm.

6 . The coil component of claim 1 , wherein a thickness of each guide member ranges from 0.03 mm to 0.3 mm.

7 . The coil component of claim 1 , wherein the guide members are formed of a metallic material, a printed circuit board (PCB) material, or a ceramic material.

8 . The coil component of claim 1 , wherein the body is formed of a magnetic material-resin composite, comprising a mixture of magnetic metal powder particles and a resin, in a sheet shape compressed and cured on and below the winding coil.

9 . The coil component of claim 1 , further comprising first and second external electrodes formed on external surfaces of the body while being respectively connected to first and second lead portions of the winding coil.

10 . A method for manufacturing a coil component, the method comprising:
seating opposing ends of a winding coil on a support member of a frame including the support member and a plurality of guide members, the guide members restricting movement of the winding coil relative to the frame; and forming a body embedding the winding coil and at least a portion of each of the guide members therein.

11 . The method of claim 10 , wherein the support member is integrated with the guide members.

12 . The method of claim 10 , wherein the guide members are spaced apart from each other along an outer periphery of the winding coil.

13 . The method of claim 10 , wherein the forming the body includes compressing and curing a first magnetic sheet on and a second magnetic sheet below the winding coil.

14 . The method of claim 10 , further comprising:
after seating the opposing ends of the winding coil and before forming the body, fixing opposing ends of the winding coil to the support member with an adhesive film.

15 . The method of claim 10 , further comprising:
dicing the body from the support member.

16 . The method of claim 15 , further comprising:
forming first and second external electrodes on external surfaces of the body diced from the support member, the first and second external electrodes connected to respective lead portions of the winding coil.

17 . A coil component, comprising:
a body; a winding coil disposed within the body; and a plurality of guide members disposed within the body and each extending to a respective side surface of the body, wherein the plurality of guide members are disposed such that at least one guide member is disposed between the winding coil and each side surface of the body in a cross-section of the body.

18 . The coil component of claim 17 , wherein at least one guide member contacts the winding coil within the body.

19 . The coil component of claim 17 , wherein each guide member has a width and a thickness of less than 0.3 mm.

20 . The coil component of claim 17 , wherein the coil component includes at least four guide members disposed therein.

21 . The coil component of claim 17 , wherein each guide member is electrically insulated from the winding coil.

Assignees

• Samsung Electro Mech

Inventors

• Oh Yun Suk
• Ahn Jin Mo

Classifications

• H01F27/255

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

• H01F27/28 Primary

  Coils; Windings; Conductive connections · CPC title

• H01F41/10

  Connecting leads to windings (making electric connections in general H01R43/00) · CPC title

• H01F41/04

  for manufacturing coils {(coils for transformer or inductances H01F27/28)} · CPC title

• H01F27/29

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