Apparatus, system and method of producing planar coils

Patent metadata

Field	Value
Publication number	US-11024452-B2
Application number	US-201715598044-A
Country	US
Kind code	B2
Filing date	May 17, 2017
Priority date	May 17, 2017
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

The disclosure provides at least an apparatus, system and method for providing a flexible planar inductive coil, such as may be embedded in a product. The apparatus, system and method may include at least one conformable substrate, and a matched function ink set, printed onto at least one substantially planar face of the at least one substrate. This printing may form at least one layer of additive conductive traces capable of receiving current flow from at least one source and layered into successive ones of the conductive traces about a center axis within a plane of the at least one conformable substrate.

First claim

What is claimed is:

1. A flexible planar inductive coil suitable for embedding in a product, comprising:
at least one flexible substrate;
a matched function ink set, comprising matched additively printed matched function inks of the matched function ink set, matched to at least:
a receptivity of the flexible substrate onto which the matched function inks are printed;
a conductivity of the substrate; and a chemical reactivity as between the
substrate and the matched function inks;

the matched function ink set comprising a plurality of successively additively printed layers in which each layer has a line height in a range of 4.58 μm +/−0.6 μm, a base one of the successively additively printed layers being printed onto a substantially planar face of the at least one flexible substrate to form and the successive ones of the successively additively printed layers being successively printed on the base one to form:
at least one layer of the plurality of successively additively printed layers atop the substrate in a plane parallel thereto and comprising conductive traces capable of receiving current flow from at least one source; and
concentrically successive ones of the conductive traces having alternating line widths and inter-line gaps in a range of 180 μm-260 μm and being about a center axis through the plane of the at least one flexible substrate.

2. The flexible planar inductive coil of claim 1 , wherein the successive ones of the conductive traces are at least one of circular and ovular.

3. The flexible planar inductive coil of claim 1 , wherein the flexible planar inductive coil comprises an acoustical coil.

4. The flexible planar inductive coil of claim 1 , wherein the flexible planar inductive coil comprises an antenna coil.

5. The flexible planar inductive coil of claim 1 , further comprising at least one via at least partially filled with a conductive fill.

6. The flexible planar inductive coil of claim 5 , further comprising at least one second layer of second additive conductive traces capable of receiving current flow, through the at least one via, from the at least one layer of additive conductive traces and layered into successive ones of the second conductive traces about a second center axis.

7. The flexible planar inductive coil of claim 6 , wherein the at least one second layer of second additive conductive traces is within the plane of and on an opposing face of the at least one substrate.

8. The flexible planar inductive coil of claim 6 , further comprising a second of the at least one conformable substrate, and wherein the at least one second layer of second additive conductive traces is within a plane of the second of the at least one substrate.

9. The flexible planar inductive coil of claim 6 , wherein the center axis and the second center axis are substantially uniform.

10. The flexible planar inductive coil of claim 6 , wherein the at least one layer and the at least one second layer comprise one of a series and a parallel one of the planar inductive coil.

11. The flexible planar inductive coil of claim 5 , wherein the at least one via is substantially outside of the successive conductive traces.

12. The flexible planar inductive coil of claim 1 , wherein the matched function ink set comprises at least one of a silver, gold, aluminum, copper, and organic conductive ink.

13. The flexible planar inductive coil of claim 1 , wherein the conductive traces comprise one of a screen printed, gravure printed, flexographically printed, inkjet printed, and aerosol jet printed conductive trace.

14. The flexible planar inductive coil of claim 1 , wherein the conductive traces comprise cured conductive traces.

15. The flexible planar inductive coil of claim 1 , wherein the planar inductive coil is inductively coupled to at least one secondary inductive coil.

16. The flexible planar inductive coil of claim 1 , wherein the plane comprises a magnetic plane.

Assignees

• Avuthu Sai Guruva
• SUSSMAN Mark Edward
• Logan David Donald
• Gill Mary Alice
• Ghalib Nabel M
• Richstein Jorg
• Collins Edward Joseph
• Jabil Inc

Inventors

• Avuthu Sai Guruva
• SUSSMAN Mark Edward
• Logan David Donald
• Gill Mary Alice
• Ghalib Nabel M
• Richstein Jorg
• Collins Edward Joseph

Classifications

• H01F2027/2809

  on stacked layers · CPC title

• H01F2017/006

  flexible printed inductors · CPC title

• H01F41/043

  by thick film techniques · CPC title

• H01F38/14

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

• H01F27/2804 Primary

  Printed windings · CPC title