Thin film coil, shield part including the same, and contactless power transmission device having the shield part

Patent metadata

Field	Value
Publication number	US-9424983-B2
Application number	US-201313895608-A
Country	US
Kind code	B2
Filing date	May 16, 2013
Priority date	Mar 13, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

There is provided a thin film coil, including a thin type coil pattern, and a coil lead-out portion including a lead-out line traversing the coil pattern from a central portion thereof and electrically connecting the central portion of the coil pattern to the outside thereof and a conductive adhesive layer electrically connecting the central portion of the coil pattern to the lead-out line.

First claim

What is claimed is:

1. A thin film coil, comprising:
a thin type coil pattern; and
a coil lead-out portion including a lead-out line traversing the coil pattern from a central portion thereof and electrically connecting the central portion of the coil pattern to the outside thereof, and a conductive adhesive layer electrically connecting the central portion of the coil pattern to the lead-out line.

2. The thin film coil of claim 1 , further comprising an insulation layer formed between the coil pattern and the lead-out line.

3. The thin film coil of claim 1 , wherein the conductive adhesive layer is at least one selected from a group consisting of an anisotropic conductive film, a conductive polymer and a conductive metal.

4. The thin film coil of claim 1 , wherein a thickness of the conductive adhesive layer is 5 to 30 μm.

5. The thin film coil of claim 1 , wherein a thickness of the coil pattern is 5 to 95 μm.

6. A shield part, comprising:
at least one or more magnetic sheets stacked on one another;
a coil pattern formed on the magnetic sheets, at least one of the magnetic sheets having a groove formed in one surface or a through hole formed therein; and
a coil lead-out portion embedded in the groove or through hole of the magnetic sheet,
wherein the coil lead-out portion includes a lead-out line traversing the coil pattern from a central portion thereof and electrically connecting the central portion of the coil pattern to the outside thereof, and a conductive adhesive layer electrically connecting the central portion of the coil pattern to the lead-out line.

7. The shield part of claim 6 , wherein the magnetic sheets include first to n th magnetic sheets layered from top to bottom, and the first magnetic sheet has the groove or through hole formed therein.

8. The shield part of claim 6 , wherein the magnetic sheets include first to n th magnetic sheets layered from top to bottom, conductive vias in the first to (n−1) th magnetic sheets are filled with conductive material, the conductive vias electrically connect the central portion of the coil pattern to the conductive adhesive layer, and the n th magnetic sheet has the groove or though hole formed therein.

9. The shield part of claim 6 , wherein the magnetic sheets include first to n th magnetic sheets layered from top to bottom, conductive vias in the first to (m−1) th magnetic sheets (m<n) are filled with conductive material, the conductive vias electrically connect the central portion of the coil pattern to the conductive adhesive layer, and the m th magnetic sheet has the groove or though hole formed therein.

10. The shield part of claim 6 , wherein the conductive adhesive layer is at least one selected from a group consisting of an anisotropic conductive film, a conductive polymer and a conductive metal.

11. The shield part of claim 6 , wherein a thickness of the conductive adhesive layer is 5 to 30 μm.

12. A contactless power transmission device, comprising:
a shield part;
a lead-out pad electrically connected to a lead-out line;
a distal contact pad electrically connected to an externally exposed end of a coil pattern; and
a power supply unit inputting and outputting power to the lead-out pad and the distal contact pad,
wherein the shield part includes: at least one or more magnetic sheets stacked on one another and a coil pattern formed on the magnetic sheets, at least one of the magnetic sheets having a groove formed in one surface thereof or a through hole formed therein, and a coil lead-out portion embedded in the groove or through hole of the magnetic sheets, wherein the coil lead-out portion includes a lead-out line traversing the coil pattern from a central portion thereof and electrically connecting the central portion of the coil pattern to the outside thereof, and a conductive adhesive layer electrically connecting the central portion of the coil pattern to the lead-out line.

Assignees

• Samsung Electro Mech

Inventors

• Choi Kang Ryong
• An Sung Yong
• Yeo Jeong Gu
• Jung Chang Ryul

Classifications

• H01F38/14

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

• H01F5/04 Primary

  Arrangements of electric connections to coils, e.g. leads · CPC title

• H01F27/365 Primary

  Electricity · mapped topic

• H02J50/12

  of the resonant type · CPC title

• H02J50/10

  using inductive coupling · CPC title