WIRELESS POWER RECEIVER AND METHOD OF MANUFACTURING THE SAME

• US 20130249302A1
• Filed: 10/29/2012
• Published: 09/26/2013
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: Nera Innovations Limited (Atlantic IP Services Limited)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: AN, Jeong Wook, LEE, Jung Oh, LEEM, Sung Hyun, KIM, Yang Hyun
• Granted Patent: US 9,806,565 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/29 Terminals; Tapping arrangements for signal inductances
• CPC Class Codes: H01F 27/36 Electric or magnetic shields or screens movable for varying inductance H01F21/10
• CPC Class Codes: H01F 27/366 made of ferromagnetic material
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01F 41/14 for applying magnetic films to substrates
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor

Abstract

A wireless power receiver according to one embodiment includes a magnetic substrate and a coil configured to wirelessly receive power, wherein the coil is formed as a conductive layer on the magnetic substrate.

Claims

1. A wireless power receiver comprising:

a magnetic substrate; and

a coil configured to wirelessly receive power, wherein the coil is formed as a conductive layer on the magnetic substrate.

2. The wireless power receiver of claim 1, wherein the coil is formed as a conductive pattern on the magnetic substrate.

3. The wireless power receiver of claim 1, wherein the magnetic substrate has a receiving space of a predetermined shape formed therein corresponding to a shape of a connecting unit connected to a wireless power receiving circuit.

4. The wireless power receiver of claim 3, further comprising the connecting unit disposed in the receiving space and connected to the coil.

5. The wireless power receiver of claim 4, wherein the connecting unit comprises one of a flexible printed circuit board, a lead frame and a tape substrate.

6. The wireless power receiver of claim 1, further comprising a short-range communication antenna formed on the magnetic substrate to surround the coil.

7. The wireless power receiver of claim 6, wherein the short-range communication antenna comprises a near field communication (NFC) antenna.

8. The wireless power receiver of claim 6, wherein the magnetic substrate has a receiving space of a predetermined shape formed therein corresponding to a shape of a connecting unit connected to a wireless power receiving circuit.

9. The wireless power receiver of claim 8, further comprising the connecting unit disposed in the receiving space and connected to the coil and a near field communication signal process unit.

19. A terminal equipped therein with a wireless power receiver of claim 1.

10. A wireless power receiver comprising:

a magnetic substrate; and

a coil configured to wirelessly receive power, wherein the coil is formed as a conductive layer at the magnetic substrate,

wherein a part of the coil is disposed inside the magnetic substrate.

11. The wireless power receiver of claim 10, wherein the coil is formed as a conductive pattern at the magnetic substrate.

12. The wireless power receiver of claim 10, wherein the magnetic substrate comprises a pattern groove for receiving a part of the coil and the part of the coil is disposed in the pattern groove.

13. The wireless power receiver of claim 10, wherein the coil has a thickness smaller than a thickness of the magnetic substrate and an upper portion of the coil is exposed out of the magnetic substrate.

20. A terminal equipped therein with a wireless power receiver of claim 10.

14. A method of manufacturing a wireless power receiver for wirelessly receiving power, the method comprising:

forming a conductor on a protective film;

forming a conductive pattern by etching the conductor;

connecting a connecting unit to be connected to an external circuit to a connection terminal of the conductive pattern;

obtaining a magnetic substrate having a receiving space of a predetermined shape corresponding to the connecting unit; and

disposing the magnetic substrate on the conductive pattern while positioning the connecting unit in the receiving space.

15. The method of claim 14, wherein the forming of the conductive pattern comprises etching the conductor to form the conductive pattern corresponding to a coil for wirelessly receiving the power and a near field communication antenna for making communication with an outside.

16. The method of claim 15, which comprises positioning connection terminals of the coil and the near field communication antenna in the receiving space.

17. The method of claim 14, wherein the disposing of the magnetic substrate comprises forming the magnetic substrate on the conductive pattern using a dual-side adhesive layer.

18. The method of claim 14, further comprising forming a release paper layer on the protective film using a dual-side adhesive layer.