Wireless power supply device and method therefor

Patent metadata

Field	Value
Publication number	US-11374437-B2
Application number	US-201816637074-A
Country	US
Kind code	B2
Filing date	Aug 8, 2018
Priority date	Aug 10, 2017
Publication date	Jun 28, 2022
Grant date	Jun 28, 2022

Abstract

A repeater may comprise: a first member; and at least one pattern formed on the first member and configured to provide at least one of an electric field and a magnetic field, which is incident from a wireless power transmitter onto a first surface of the first member, through a second surface of the first member, opposite to the first surface.

First claim

The invention claimed is:

1. A repeater for wireless power transmission, the repeater comprising:
a first member; and
at least one pattern formed on the first member and configured to provide at least one of an electric field or a magnetic field, which is incident to a first surface of the first member from a wireless power transmission device, through a second surface of the first member, which opposes the first surface,
wherein at least one of the electric field or the magnetic field is incident to the at least one pattern at a first incident angle, and the at least one pattern comprises at least one first pattern that changes a traveling direction of the electric field or the magnetic field such that at least one of the electric field or the magnetic field is refracted at a negative refraction angle.

2. The repeater of claim 1 , wherein the at least one pattern comprises at least one second pattern that concentrates at least one of the electric field or the magnetic field in a first direction.

3. The repeater of claim 2 , wherein the first member comprises:
a first region comprising at least one pattern radiating at least one of the electric field or the magnetic field; and
a second region comprising at least one pattern concentrating at least one of the electric field or the magnetic field in the first direction.

4. The repeater of claim 3 , wherein the first member radiates at least one of the electric field or the magnetic field to a first electronic device through the first region, and concentrates at least one of the electric field or the magnetic field to a second electronic device located outside a vehicle in the first direction through the second region.

5. The repeater of claim 1 , wherein the at least one first pattern has a negative permittivity or permeability.

6. The repeater of claim 1 , wherein the first member is a window of a vehicle, and the at least one pattern is formed of a transparent material and is attached to the first member.

7. The repeater of claim 6 , wherein the transparent material comprises graphene.

8. A repeater for wireless power transmission, the repeater comprising:
a first member; and
at least one pattern formed on the first member and configured to provide at least one of an electric field or a magnetic field, which is incident to a first surface of the first member from a wireless power transmission device, through a second surface of the first member, which opposes the first surface,
wherein at least one of the electric field or the magnetic field is incident to the at least one pattern at a first incident angle, and the at least one pattern comprises at least one first pattern that changes a traveling direction of the electric field or the magnetic field such that at least one of the electric field or the magnetic field is refracted at a zero refraction angle.

9. The repeater of claim 8 , wherein the at least one pattern comprises at least one second pattern that concentrates at least one of the electric field or the magnetic field in a first direction.

10. The repeater of claim 9 , wherein the first member comprises:
a first region comprising at least one pattern radiating at least one of the electric field or the magnetic field; and
a second region comprising at least one pattern concentrating at least one of the electric field or the magnetic field in the first direction.

11. The repeater of claim 10 , wherein the first member radiates at least one of the electric field or the magnetic field to a first electronic device through the first region, and concentrates at least one of the electric field or the magnetic field to a second electronic device located outside a vehicle in the first direction through the second region.

12. The repeater of claim 8 , wherein the at least one first pattern has a zero permittivity or permeability.

13. The repeater of claim 8 , wherein the first member is a window of a vehicle, and the at least one pattern is formed of a transparent material and is attached to the first member.

14. The repeater of claim 13 , wherein the transparent material comprises graphene.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Song Mi-Jeong
• BAE Bum-hee
• Kim Youn-Ho
• Kim Hyung-Geun
• Seo Keon-Young

Classifications

• H02J50/50 Primary

  using additional energy repeaters between transmitting devices and receiving devices · CPC title

• H02J50/10

  using inductive coupling · CPC title

• H04B7/15507 Primary

  Relay station based processing for cell extension or control of coverage area, (network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04) · CPC title

• H01F2038/146

  in combination with capacitive coupling · CPC title

• B60J7/043

  Sunroofs (B60J7/047 - B60J7/053 take precedence){e.g. sliding above the roof} · CPC title