Wireless power consortium device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-10205487-B1
Application number	US-201815870882-A
Country	US
Kind code	B1
Filing date	Jan 13, 2018
Priority date	Nov 20, 2017
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

Abstract

A wireless power consortium device includes a flexible substrate layer, at least one first WPC coil on the flexible substrate layer, at least one first NFC coil on the flexible substrate layer, at least one WPC module, and at least one NFC module. Each WPC module comprises a first matching circuit and a WPC power supply chip electrically connected to the first matching circuit. Each NFC module comprises a second matching circuit and an NFC controlling chip electrically connected to the second matching circuit. The first matching circuit and the second matching circuit are different parts of one circuit and are formed on the flexible substrate layer.

First claim

What is claimed is:

1. A wireless power consortium device, comprising:
a flexible substrate layer;
at least one first wireless power consortium (WPC) coil being formed on the flexible substrate layer;
at least one first near field communication (NFC) coil being formed on the flexible substrate layer; wherein the at least one first NFC coil surrounds the at least one first WPC coil;
at least one WPC module being formed on the flexible substrate layer, wherein each of the at least one WPC module comprises a first matching circuit and a WPC power supply chip electrically connected to the first matching circuit; and
at least one NFC module being formed on the flexible substrate layer, wherein each of the at least one NFC module comprises a second matching circuit and an NFC controlling chip electrically connected to the second matching circuit; wherein the first matching circuit and the second matching circuit are different parts of one circuit and are formed on the flexible substrate layer.

2. The wireless power consortium device of claim 1 , the at least one WPC module and the at least one NFC module lie on outside of the at least one first NFC coil.

3. The wireless power consortium device of claim 1 , wherein the WPC module is adjacent to the NFC module.

4. The wireless power consortium device of claim 1 , wherein a thickness of the at least one first WPC coil is equal to or greater than 55 micrometers.

5. The wireless power consortium device of claim 1 , wherein a thickness of the at least one first NFC coil is equal to or less than 35 micrometers.

6. The wireless power consortium device of claim 1 , wherein a thickness of the first matching circuit is equal to or less than 18 micrometers.

7. The wireless power consortium device of claim 1 , wherein a thickness of the second matching circuit is equal to or less than 18 micrometers.

8. The wireless power consortium device of claim 1 , wherein the flexible substrate layer comprises a first surface and a second surface facing away from the first surface, the at least one first WPC coil, the at least one first NFC coil, the at least one WPC module, and the at least one NFC module are all formed on the first surface.

9. The wireless power consortium device of claim 8 , wherein the wireless power consortium device further comprises at least one second WPC coil, at least one second NFC coil, and a third matching circuit; wherein the second WPC coil, the second NFC coil, and the third matching circuit are formed on the second surface.

10. The wireless power consortium device of claim 9 , wherein the second WPC coil faces away from the first WPC coil, the second NFC coil faces away from the first NFC coil, the third matching circuit faces away from the first matching circuit and the second matching circuit.

11. The wireless power consortium device of claim 9 , wherein a thickness of the second WPC coil is equal to a thickness of the first WPC coil; a thickness of the second NFC coil is equal to a thickness of the first NFC coil.

12. The wireless power consortium device of claim 9 , wherein a thickness of the second WPC coil is equal to or more than 55 micrometers.

13. The wireless power consortium device of claim 9 , wherein a thickness of the second NFC coil is equal to or less than 35 micrometers.

14. A method for manufacturing a wireless power consortium device, comprising:
providing a copper clad substrate comprising a flexible substrate layer and a first copper layer being formed on the flexible substrate layer; wherein the copper clad substrate defines a WPC coil area, an NFC coil area, and a matching line area, the NFC coil area surrounds the WPC coil area, the matching line area surrounds the NFC coil area;
forming a first plated copper layer on the first copper layer, wherein the first plated copper layer lies in the WPC coil area;
forming at least one first WPC coil lying the WPC coil area, at least one first NFC coil lying in the NFC coil area, a first matching circuit lying in the matching line area, and a second matching circuit lying in the matching line area from the first copper layer and the first plated copper layer; and
mounting at least one WPC power supply chip and at least one NFC controlling chip on the matching line area and respectively electrically connected to the first matching circuit and the second matching circuit respectively.

15. The method of claim 14 , after forming a first plated copper layer on the first copper layer, wherein further comprises:
reducing the first copper layer and the second copper layer locally by etching.

16. The method of claim 15 , wherein the first plated copper layer lying in the WPC coil area is not etched; the first copper layer lying in the NFC coil area is not etched; and the first copper layer lying in the matching line area is etched.

17. The method of claim 15 , wherein a sum of thicknesses of the first copper layer and the first plated copper layer lying in the WPC coil area is equal to or greater than 55 micrometers; a thickness of the first copper layer lying in the NFC coil area is equal to or less than 35 micrometers; a thickness of the first copper layer being etched and lying in the matching line area is equal to or less than 18 micrometers.

18. The method of claim 14 , wherein copper clad substrate further comprises a second copper layer facing away from the first copper layer; when forming the first plated copper layer, further comprises:
forming a second plated copper layer on the first copper layer, wherein the second plated copper layer lies in the WPC coil area and faces away from the first plated copper layer; when making at least one first WPC coil lying the WPC coil area, at least one first NFC coil lying in the NFC coil area, a first matching circuit lying in the matching line area, and a second matching circuit lying in the matching line area from the first copper layer and the first plated copper layer, further comprises:
making at least one second WPC coil lying the WPC coil area, at least one second NFC coil lying in the NFC coil area, and a third matching circuit lying in the matching line area from the second copper layer and the second plated copper layer.

19. The method of claim 18 , wherein the second WPC coil faces away from the first WPC coil, the second NFC coil faces away from the first NFC coil, the third matching circuit faces away from the first matching circuit and the second matching circuit.

20. The method of claim 18 , wherein a sum of thicknesses of the second copper layer and the second plated copper layer lying in the WPC coil area is equal to or greater than 55 micrometers; a thickness of the second copper layer lying in the NFC coil area is equal to or less than 35 micrometers; a thickness of the second copper layer being etched and lying in the matching line area is equal to or less than 18 micrometers.

Assignees

• Avary Holding Shenzhen Co Ltd
• Hongqisheng Prec Electronics Qinhuangdao Co Ltd
• Hongqisheng Prec Electronics Qinhuangdao Co

Inventors

• Ho Ming-Jaan
• Hu xian-qin
• Shen Fu-Yun

Classifications

• H01F27/2804

  Printed windings · CPC title

• H01F38/14

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

• H02J50/20

  using microwaves or radio frequency waves · CPC title

• H04B5/0037 Primary

  Electricity · mapped topic

• H04B5/79 Primary

  for data transfer in combination with power transfer · CPC title