Wireless Power Receiver and Method of Manufacturing the Same

• US 20190165609A1
• Filed: 01/31/2019
• Published: 05/30/2019
• 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 10,804,740 B2
• Time in Patent Office: Days
• 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 magnetic substrate comprising a first receiving space and a second receiving space;

a coil on the magnetic substrate;

a first connection terminal connected to an inner end of the coil;

a second connection terminal connected to an outer end of the coil; and

a connecting unit comprising;

a circuit board;

a third connection terminal connected to the first connection terminal; and

a fourth connection terminal connected to the second connection terminal,

wherein the first receiving space overlaps the third connection terminal in a vertical direction perpendicular to the magnetic substrate,

wherein the second receiving space overlaps the fourth connection terminal in the vertical direction,

wherein the circuit board comprises;

a first portion that overlaps the first receiving space in the vertical direction; and

a second portion that overlaps the second receiving space in the vertical direction,

wherein the third connection terminal is disposed on the first portion of the circuit board, and

wherein the fourth connection terminal is disposed on the second portion of the circuit board.

2. The wireless power receiver of claim 1, wherein the circuit board comprises a third portion connecting the first portion and the second portion.

3. The wireless power receiver of claim 2, wherein the third portion of the circuit board overlaps the coil in the vertical direction.

4. The wireless power receiver of claim 1, wherein the first portion of the circuit board overlaps the first connection terminal in the vertical direction.

5. The wireless power receiver of claim 1, wherein the second portion of the circuit board overlaps the second connection terminal in the vertical direction.

6. The wireless power receiver of claim 1, wherein the first receiving space passes through the magnetic substrate in the vertical direction.

7. The wireless power receiver of claim 1, wherein the second receiving space passes through the magnetic substrate in the vertical direction.

8. The wireless power receiver of claim 1, comprising an adhesive layer disposed on at least one surface of the magnetic substrate,

wherein the adhesive layer comprises a third receiving space and a fourth receiving space.

9. The wireless power receiver of claim 8, wherein the third receiving space overlaps the first portion of the circuit substrate in the vertical direction, and

wherein the fourth receiving space overlaps the second portion of the circuit substrate in the vertical direction.

10. The wireless power receiver of claim 9, wherein the adhesive layer comprises a fifth receiving space that overlaps the third portion of the circuit substrate in the vertical direction.

11. The wireless power receiver of claim 1, wherein the circuit board comprises a fourth portion that does not overlap the magnetic substrate in the vertical direction.

12. The wireless power receiver of claim 11, wherein the fourth portion of the circuit board is disposed outside of the magnetic substrate.

13. The wireless power receiver of claim 1, wherein the first receiving space is disposed inside the coil.

14. The wireless power receiver of claim 1, wherein the second receiving space is disposed outside the coil.

20. The wireless power receiver of claim 1, wherein the circuit board comprises a fourth portion that does not overlap the adhesive layer in the vertical direction, and

wherein the fourth portion is disposed outside of the adhesive layer.

15. A wireless power receiver, comprising:

an adhesive layer comprising a first receiving space and a second receiving space;

a coil on the adhesive layer;

a first connection terminal connected to an inner end of the coil;

a second connection terminal connected to an outer end of the coil; and

a connecting unit comprising;

a circuit board;

a third connection terminal connected to the first connection terminal; and

a fourth connection terminal connected to the second connection terminal,

wherein the first receiving space overlaps the third connection terminal in a vertical direction perpendicular to the adhesive layer,

wherein the second receiving space overlaps the fourth connection terminal in the vertical direction,

wherein the circuit board comprises;

a first portion that overlaps the first space in the vertical direction; and

a second portion that overlaps the second space in the vertical direction,

wherein the third connection terminal is disposed on the first portion of the circuit board, and

wherein the fourth connection terminal is disposed on the second portion of the circuit board.

16. The wireless power receiver of claim 15, wherein the circuit board comprises a third portion connecting the first portion and the second portion.

17. The wireless power receiver of claim 16, wherein the third portion of the circuit board overlaps the coil in the vertical direction.

18. The wireless power receiver of claim 15, wherein the first receiving space passes through the adhesive layer in the vertical direction, and

wherein the second receiving space passes through the adhesive layer in the vertical direction.

19. The wireless power receiver of claim 16, wherein the adhesive layer comprises a third receiving space that overlaps the third portion of the circuit board in the vertical direction.