WIRELESS POWER-TRANSMITTING SYSTEM

• US 20160254707A1
• Filed: 05/13/2016
• Published: 09/01/2016
• Est. Priority Date: 11/18/2013
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: FUJIWARA, Eiichiro, TOKURA, Susumu
• Granted Patent: US 10,454,310 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 which wirelessly transmits electric power by making a power-transmitting coil and a power-receiving coil face each other, comprising:

a cover which is slidable between a closing position at which the cover covers an area above a facing surface of at least one of the power-transmitting coil and the power-receiving coil and an open position at which the cover is retracted from the area above the facing surface; and

a foreign object accompanying member configured to make a foreign object placed on the cover move together with the cover sliding from the closing position to the open position.

2. The wireless power-transmitting system according to claim 1, wherein the foreign object accompanying member has a hook member which is provided at the cover and protrudes further upward from a placement surface on which the foreign object is placed.

3. The wireless power-transmitting system according to claim 1, further comprising:

a winding member configured to wind the cover into a roll shape.

4. The wireless power-transmitting system according to claim 1, further comprising:

a folding member configured to fold the cover into a bellows shape.

5. The wireless power-transmitting system according to claim 1, wherein the foreign object accompanying member has a sticking member configured to stick the foreign object to the cover.

6. The wireless power-transmitting system according to claim 1, further comprising:

a blade member which scrapes off the foreign object stuck to the cover, at an accompanying destination of the foreign object.

7. The wireless power-transmitting system according to claim 1, further comprising:

a foreign object collection member configured to recover the foreign object at an accompanying destination of the foreign object.

8. 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 a magnetic flux generated in the power-transmitting coil, thereby vibrating the cover.

9. The wireless power-transmitting system according to claim 8, wherein an upper surface of the cover is made to be an inclined surface which outwardly descends.

10. The wireless power-transmitting system according to claim 8, 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.

11. The wireless power-transmitting system according to claim 8, wherein the vibration part is formed by a vibrator made of magnetostrictive material.