Wireless power-transmitting system

• US 10,454,310 B2
• Filed: 05/13/2016
• Issued: 10/22/2019
• Est. Priority Date: 11/18/2013
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: Fujiwara, Eiichiro, Tokura, Susumu
• Primary Examiner(s): Barnie, Rexford N
• Assistant Examiner(s): Vu, Toan T
• Application Number:
  US15/153,841
• Publication Number:
  US 20160254707A1
• Time in Patent Office: 1,257 Days
• Field of Search: 307104
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• 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: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings

Abstract

A wireless power-transmitting system which wirelessly transmits electric power by making a power-transmitting coil and a power-receiving coil face each other includes: a cover which is slidable between a closing position at which the cover covers an area above a facing surface of the power-transmitting coil and an open position at which the cover is retracted from the area above the facing surface; and a hook member which makes a foreign object placed on the cover move together with the cover sliding from the closing position to the open position.

Claims

1. A wireless power-transmitting system comprising:

a power-transmitting coil which wirelessly transmits electric power to a movable body;

a cover which covers the power-transmitting coil; and

a vibration part which is connected to the cover and vibrated by magnetic flux generated in the power-transmitting coil, thereby vibrating the cover, wherein

the vibration part is formed by a vibration part coil which generates electric power by receiving the magnetic flux generated in the power-transmitting coil, and a vibrator including an electrically conductive polymer actuator which is connected to the vibration part coil and also connected to the cover, and is vibrated by the electric power generated in the vibration part coil.

2. The wireless power-transmitting system according to claim 1, wherein the vibration part is formed by a vibrator made of magnetostrictive material.

4. The wireless power-transmitting system according to claim 1, wherein an upper surface of the cover is the highest at a central portion of the cover and is an inclined surface which inclines downwardly toward the outside thereof.

3. A foreign object removing device which covers a power-transmitting coil that wirelessly transmits power to a movable body:

the device comprising;

a cover which covers the power-transmitting coil; and

a vibration part which is connected to the cover and vibrated by magnetic flux generated in the power-transmitting coil, thereby vibrating the cover, wherein

the vibration part is formed by a vibration part coil which generates electric power by receiving the magnetic flux generated in the power-transmitting coil, and a vibrator including an electrically conductive polymer actuator which is connected to the vibration part coil and also connected to the cover, and is vibrated by the electric power generated in the vibration part coil.