POWER TRANSMISSION APPARATUS

• US 20180096773A1
• Filed: 09/13/2017
• Published: 04/05/2018
• Est. Priority Date: 10/03/2016
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: SHIJO, Tetsu, FUKUMOTO, Makio, MORITSUKA, Fumi, OBAYASHI, Shuichi
• Granted Patent: US 10,763,024 B2
• Time in Patent Office: Days
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: H01F 27/022 Encapsulation
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• 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

Abstract

A power transmission apparatus includes a power transmission pad, a base structure, and grout. The power transmission pad for wireless power transmission has a cast resin frame, at least part of the cast resin frame being embedded in the ground. The base structure is disposed below the power transmission pad. The grout is filled around the power transmission pad, including a gap between an upper surface of the base structure and the power transmission pad.

Claims

1. A power transmission apparatus comprising:

a power transmission pad for wireless power transmission, the power transmission pad comprising a cast resin frame, at least part of the cast resin frame being embedded in ground;

a base structure disposed below the power transmission pad; and

grout filled around the power transmission pad, including a gap between an upper surface of the base structure and the power transmission pad.

2. The power transmission apparatus of claim 1, wherein the base structure comprises concrete.

3. The power transmission apparatus of claim 1 further comprising a soil-invasion restriction member disposed around the base structure and the grout, the soil-invasion restriction member intercepting that component materials of the base structure and of the grout enters into surrounding grave.

4. The power transmission apparatus of claim 3, wherein the soil-invasion restriction member comprises asphalt.

5. The power transmission apparatus of claim 1, wherein un upper surface side of the cast resin frame is exposed from the ground.

6. The power transmission apparatus of claim 1 further comprising an anchor joined to the cast resin frame and fixed to the base structure.

7. The power transmission apparatus of claim 1 further comprising:

a cable extending from the power transmission pad; and

a protective tube to cover the cable.

8. The power transmission apparatus of claim 7 further comprising an insulator to cover around a connected part of the cable with the cast resin frame.

9. The power transmission apparatus of claim 1, wherein the cast resin frame comprises thermosetting resin.

10. The power transmission apparatus of claim 1, wherein the cast resin frame comprises fiber-reinforced resin.

11. The power transmission apparatus of claim 1, wherein an upper surface of the cast resin frame comprises a concavity and a convexity.

12. The power transmission apparatus of claim 1, wherein the grout has an expansion rate of 0% or higher at a normal temperature.

13. The power transmission apparatus of claim 1 further comprising a conductor plate disposed on at least one surface of the cast resin frame, except for an upper surface of the cast resin frame.

14. The power transmission apparatus of claim 1, wherein the base structure and the grout comprise an insulation material without conductive material.