Wireless power receiver and method of manufacturing the same

• US 9,806,565 B2
• Filed: 10/29/2012
• Issued: 10/31/2017
• 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
• Primary Examiner(s): Cavallari, Daniel
• Assistant Examiner(s): Evans, James P
• Application Number:
  US13/663,012
• Publication Number:
  US 20130249302A1
• Time in Patent Office: 1,828 Days
• Field of Search: 307104, 713300
• 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 can include a magnetic substrate and a coil configured to wirelessly receive power. The coil can be formed as a conductive layer on the magnetic substrate. A connecting unit can be disposed in a receiving space of the magnetic substrate and can be connected to the coil unit.

Claims

1. A wireless power receiver comprising:

a substrate comprising a receiving space of a predetermined shape formed therein for a connecting unit configured to connect to a wireless power receiving circuit;

a coil unit disposed on the substrate, the coil unit comprising a first connection terminal, a second connection terminal, and a coil; and

a short-range communication antenna disposed on the substrate and surrounding the coil;

wherein the coil is configured to wirelessly receive power, wherein the coil is formed as a conductive pattern on or within the substrate,

wherein the conductive pattern comprises a conductive line wound at least two times and conductive pattern has a spiral shape, wherein the first connection terminal is located at one end of the coil and the second connection terminal is located at the other end of the coil, wherein the coil unit overlaps the receiving space in a first direction perpendicular to an upper surface of the substrate,

wherein the connecting unit is disposed in the receiving space and connected to the coil unit,

wherein the connecting unit overlaps the receiving space in a second direction parallel to the upper surface of the substrate, and

wherein the connecting unit comprises;

a third connection terminal connected to the first connection terminal of the coil unit; and

a fourth connection terminal connected to the second connection terminal of the coil unit.

2. The wireless power receiver of claim 1, wherein the shape of the receiving space corresponds to a shape of the connecting unit.

3. The wireless power receiver of claim 1, wherein the short-range communication antenna has a rectangular configuration formed by winding one conductive line several times.

4. The wireless power receiver of claim 1, wherein the connecting unit is connected to the short-range communication antenna.

5. The wireless power receiver of claim 1, wherein the conductive pattern is a conductive layer.

6. The wireless power receiver of claim 1, wherein the substrate comprises a pattern groove for receiving a part of the coil and wherein the part of the coil is disposed in the pattern groove.

7. The wireless power receiver of claim 1, wherein the coil has a thickness smaller than a thickness of the substrate and wherein an upper portion of the coil is exposed out of the substrate.

8. A wireless portable terminal, comprising the wireless power receiver of claim 1.

9. The wireless power receiver of claim 1, wherein the substrate comprises magnetic material.

10. The wireless power receiver of claim 1, wherein the substrate is flexible.

11. The wireless power receiver of claim 1, wherein the one end of the coil is at an outside portion of the conductive pattern and the other end of the coil is at an inside portion of the conductive pattern.

12. A wireless power receiver comprising:

a substrate comprising a receiving space of a predetermined shape formed therein for a connecting unit configured to connect to a wireless power receiving circuit; and

a coil unit comprising a first connection terminal, a second connection terminal, and a coil; and

a short-range communication antenna disposed on the substrate and surrounding the coil;

wherein the coil is configured to wirelessly receive power,

wherein the coil is formed as a conductive pattern on or within the substrate,

wherein the conductive pattern comprises a conductive line wound at least two times and the conductive pattern has a spiral shape,

wherein the first connection terminal is located at one end of the coil and the second connection terminal is located at the other end of the coil,

wherein the connecting unit is disposed in the receiving space and connected to the coil unit,

wherein the connecting unit overlaps the receiving space in a direction parallel to the upper surface of the substrate, and

wherein the connecting unit comprises;

a third connection terminal connected to the first connection terminal of the coil unit; and

a fourth connection terminal connected to the second connection terminal of the coil unit; and

wherein the coil unit is disposed on the substrate and the connecting unit.

13. The wireless power receiver of claim 12, wherein the connecting unit is configured such that it is separable from the receiving space.

14. The wireless power receiver of claim 12, wherein the predetermined shape of the receiving space corresponds to a shape of the connecting unit.

15. The wireless power receiver of claim 12, wherein the short-range communication antenna has a rectangular configuration formed by winding one conductive line several times.

16. The wireless power receiver of claim 12, wherein the connecting unit is connected to the short-range communication antenna.

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

18. A wireless portable terminal, comprising the wireless power receiver of claim 12.

19. The wireless power receiver of claim 12, wherein the substrate comprises magnetic material.

20. The wireless power receiver of claim 12, wherein the substrate is flexible.