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-9472340-B2
Application number	US-201414332082-A
Country	US
Kind code	B2
Filing date	Jul 15, 2014
Priority date	Aug 29, 2013
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

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 of the present invention includes a coil portion having a coil pattern on a substrate; a magnetic portion having the coil portion attached to one surface thereof and a conductive pattern formed thereon; an adhesive portion interposed between the magnetic portion and the coil portion to mutually bond the magnetic portion and the coil portion; and a conductive hole for electrically connecting the coil pattern and the conductive pattern, wherein the adhesive portion is formed on one surface of the magnetic portion having the conductive pattern thereon while being formed in an area other than the area in which the conductive pattern is formed.

First claim

What is claimed is:

1. A coil type unit for wireless power transmission, comprising:
a coil portion having a coil pattern formed on a substrate;
a magnetic portion having a conductive pattern;
an adhesive portion interposed between the magnetic portion and the coil portion to bond the magnetic portion and the coil portion to each other; and
a conductive hole formed in the substrate for electrically connecting both ends of the coil pattern and the conductive pattern,
wherein the adhesive portion is formed on one surface of the magnetic portion having the conductive pattern formed thereon while being formed in an area other than the area in which the conductive pattern is formed, and
wherein the adhesive portion is formed to have the same thickness as the conductive pattern.

2. The coil type unit for wireless power transmission according to claim 1 , wherein the conductive pattern is formed using conductive ink or conductive paste.

3. The coil type unit for wireless power transmission according to claim 1 , wherein the adhesive portion maintains a certain gap with respect to the conductive pattern.

4. The coil type unit for wireless power transmission according to claim 1 , wherein the magnetic portion is formed by performing sintering after laminating one or more magnetic sheets.

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

6. The coil type unit for wireless power transmission according to claim 1 , wherein the adhesive portion is formed of an adhesive film or an adhesive tape.

7. The coil type unit for wireless power transmission according to claim 1 , wherein the adhesive portion is formed by coating an adhesive or a resin having adhesive properties.

8. The coil type unit for wireless power transmission according to claim 1 , wherein the conductive hole is formed by forming through-holes in the position of the both ends of the coil pattern, bonding the magnetic portion and the coil portion to each other while disposing the through-holes in the position of the conductive pattern, and filling conductive ink or conductive paste in the through-holes.

9. The coil type unit for wireless power transmission according to claim 1 , wherein the substrate is a flexible printed circuit board (FPCB), and the coil pattern has a single-layered pattern shape.

Assignees

• Samsung Electro Mech

Inventors

• Park No Il
• Park Seung Wook
• Lee Chang Bae
• Jung Chang Ryul

Classifications

• Y10T29/4902

  Electromagnet, transformer or inductor · CPC title

• H01F38/14 Primary

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

• H02J50/10

  using inductive coupling · CPC title

• H01F27/2804

  Printed windings · CPC title

• H01F41/041

  Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00) · CPC title