Coil type unit for wireless power transmission, wireless power transmission device, electronic device and manufacturing method of coil type unit for wireless power transmission

Patent metadata

Field	Value
Publication number	US-9761371-B2
Application number	US-201414331950-A
Country	US
Kind code	B2
Filing date	Jul 15, 2014
Priority date	Jul 23, 2013
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

The present invention relates to a coil type unit for wireless power transmission, a wireless power transmission device, an electronic device, and a manufacturing method of a coil type unit for wireless power transmission. A coil type unit for wireless power transmission according to the present invention includes a coil pattern in the form of a wiring pattern; a magnetic portion having the coil pattern attached to one surface thereof; and an adhesive portion interposed between the magnetic portion and the coil pattern to bond the magnetic portion and the coil pattern, wherein the magnetic portion is formed by laminating one or more conductive sheets with one or more magnetic sheets and integrally firing the laminated sheets, and the magnetic portion has conductive holes in the position, where both ends of the coil pattern are disposed, to electrically connect the both ends of the coil pattern and the conductive sheet.

First claim

What is claimed is:

1. A coil type unit for wireless power transmission, comprising:
a coil pattern in the form of a wiring pattern;
a magnetic portion having the coil pattern attached to one surface thereof;
a conductive sheet embedded in the magnetic portion; and
an adhesive portion interposed between the magnetic portion and the coil pattern to bond the magnetic portion and the coil pattern to each other,
wherein the magnetic portion has conductive holes formed in the position at which ends of the coil pattern are disposed, to electrically connect the ends of the coil pattern and the conductive sheet.

2. The coil type unit for wireless power transmission according to claim 1 , wherein the conductive sheet is laminated on a part or all of the surface of a sheet layer on which the conductive sheet is to be laminated.

3. The coil type unit for wireless power transmission according to claim 1 , wherein the conductive sheet is formed by printing and laminating conductive ink or conductive paste.

4. The coil type unit for wireless power transmission according to claim 1 , wherein the magnetic portion uses at least one of a ferrite sheet, a metal sheet, and a hybrid type sheet, which uses a combination of metal and ferrite.

5. The coil type unit for wireless power transmission according to claim 1 , wherein the conductive hole is formed by forming a through-hole in the magnetic portion and filling conductive ink or conductive paste in the through-hole.

Assignees

• Samsung Electro Mech

Inventors

• Park No Il
• Kim Jang Su
• Jung Doo Sung
• Park Seung Wook

Classifications

• Y10T29/49073

  by assembling coil and core · CPC title

• H01F2027/2809

  on stacked layers · CPC title

• H01F38/14 Primary

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• H01F27/2804

  Printed windings · CPC title

• H01F1/344

  Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4 · CPC title