WIRELESS POWER SUPPLY SYSTEM

• US 20180241259A1
• Filed: 04/25/2018
• Published: 08/23/2018
• Est. Priority Date: 05/10/2013
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: MAEKAWA, Yuji, NIIZUMA, Motonao
• Granted Patent: US 10,263,478 B2
• Time in Patent Office: Days
• CPC Class Codes: B60L 2200/32 Waterborne vessels
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: B60M 7/003 for vehicles using stored power (e.g. charging stations)
• 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 50/12 of the resonant type
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• 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 wireless power supply system includes a power supply coil installed on the ground, an inner balloon in which a power supply coil is mounted and configured to expand and contract to adjust a vertical position of the power supply coil, and an outer balloon provided to cover both the power supply coil and the inner balloon and configured to expand to occupy a space between the power supply coil and a power receiving coil, and wirelessly supplies power from the power supply coil to the power receiving coil.

Claims

1. A wireless power supply system including a power supply apparatus having a power supply coil and a power receiving apparatus having a power receiving coil, the wireless power supply system configured to wirelessly supply power from the power supply coil to the power receiving coil, the wireless power supply system comprising:

a first bag configured to support the power supply coil and expand to move the power supply coil toward the power receiving coil;

a spacer supported by the power supply coil and configured to abut the power receiving apparatus and cause the power supply coil and the power receiving coil to be spaced at a distance between the power supply coil and the power receiving coil and disposed to face each other; and

a gas supply means configured to supply the gas to the first bag.

2. The wireless power supply system according to claim 1, wherein the spacer abuts a power receiving coil of the power receiving apparatus.

3. The wireless power supply system according to claim 1,

wherein the power receiving apparatus is a vehicle and has a base on which the power receiving coil is provided, and

wherein the spacer has a flat upper surface.

4. The wireless power supply system according to claim 3, wherein the power supply coil and the first bag are provided within a concave portion provided on a ground side of a place in which the vehicle is able to stop.

5. The wireless power supply system according to claim 4, further comprising:

a movement restricting member provided within the concave portion and configured to restrict movement of the power supply coil.

6. The wireless power supply system according to claim 1, wherein the spacer is detachable from the power supply coil.