Coil component and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-10902990-B2
Application number	US-201715818130-A
Country	US
Kind code	B2
Filing date	Nov 20, 2017
Priority date	Mar 30, 2017
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

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 wound around a coil axis and a plurality of guide members therein,
wherein the guide members are spaced apart from each other and from the winding coil along an outer periphery of the winding coil,
each of the guide members has two ends that are exposed externally of the body and that are spaced apart from each other by a portion of the body on one or more external surfaces of the body,
upper and lower surfaces of each of the guide members oppose each other in a direction of the coil axis, and the entire upper and lower surfaces contact the body, and
a thickness of each guide member ranges from 0.03 mm to 0.3 mm.

2. The coil component of claim 1 , wherein each guide member is conductive.

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

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

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

6. The coil component of claim 1 , wherein the body is composed of a magnetic material-resin composite, comprising a mixture of magnetic metal powder particles and a resin, disposed on and below the winding coil, between the guide members and the winding coil, and between the two ends of the guide members.

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

8. A coil component, comprising:
a body;
a winding coil disposed within the body; and
a plurality of guide members composed of a conductive material, disposed within the body, and each extending to a respective side surface of the body,
wherein each guide member is electrically insulated from the winding coil,
the plurality of guide members are disposed between an outer periphery of the winding coil and external surfaces of the body,
a portion of each guide member is spaced apart from the respective side surface of the body by a portion of the body, and
a thickness of each guide member ranges from 0.03 mm to 0.3 mm.

9. The coil component of claim 8 , wherein each guide member has a width and a thickness of less than 0.3 mm.

10. The coil component of claim 8 , wherein the coil component includes at least four guide members disposed therein.

11. The coil component of claim 8 , wherein the body is composed of a magnetic material-resin composite, comprising a mixture of magnetic metal powder particles and a resin, and the magnetic material-resin composite extends in spaces between the portion of each guide member and the respective side surface of the body.

12. A coil component, comprising:
a body having a winding coil wound around a coil axis and a plurality of guide members therein,
wherein the guide members are independent from each other and spaced apart from each other in the body between the winding coil and respective side surfaces of the body,
the body comprises a composition including magnetic material that is disposed between each guide member and an outer periphery of the winding coil,
upper and lower surfaces of each of the guide members oppose each other in a direction of the coil axis, and the entire upper and lower surfaces contact the body, and
a thickness of each guide member ranges from 0.03 mm to 0.3 mm.

13. The coil component of claim 12 , wherein at least one guide member is not in contact with the winding coil.

14. The coil component of claim 12 , wherein the number of the guide members in the body of the coil component is 4 to 16.

15. The coil component of claim 12 , wherein a width of each guide member ranges from 0.03 mm to 0.3 mm.

16. The coil component of claim 12 , wherein the guide members are composed of a conductive material.

17. The coil component of claim 12 , wherein the guide members are composed of a printed circuit board (PCB) material or a ceramic material.

18. The coil component of claim 12 , wherein the body is composed of the composition including magnetic material and comprises a mixture of magnetic metal powder particles and a resin, disposed above and below the winding coil and between the guide members and the winding coil.

19. The coil component of claim 12 , further comprising first and second external electrodes disposed on external surfaces of the body while being respectively connected to first and second lead portions of the winding coil.

Assignees

• Samsung Electro Mech

Inventors

• Oh Yun Suk
• Ahn Jin Mo

Classifications

• H01F17/04

  with magnetic core · CPC title

• H01F2017/048

  with encapsulating core, e.g. made of resin and magnetic powder · CPC title

• H01F27/292

  Surface mounted devices · CPC title

• H01F41/04

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

• H01F17/0013

  with stacked layers · CPC title