APPARATUS FOR TRANSMITTING WIRELESS POWER FOR ELECTRIC CAR

• US 20160159233A1
• Filed: 07/23/2014
• Published: 06/09/2016
• Est. Priority Date: 07/23/2013
• Status: Active Grant

• Current Assignee: Hyunmin Kim
• Original Assignee: Hyunmin Kim
• Inventors: KIM, Hyunmin
• Granted Patent: US 9,809,125 B2
• Time in Patent Office: Days
• 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 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/35 Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
• 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: B60L 53/50 Charging stations characterised by energy-storage or power-generation means
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• 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
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

The present disclosure implements integral type wireless charging equipment for an electric car, which is a wireless power transmitting apparatus for an electric car installed in a public parking lot that supplies wireless power to electric cars of various standards having wireless power reception pads installed therein through an efficient method. The wireless power transmitting apparatus for the electric car according to the present disclosure may supply high capacity wireless power to an electric car through a plurality of transmission pads to perform quick charging, may be easily constructed in indoor or outdoor parking lots due to no restrictions regarding a place of installation, and may be useful to construct national charging infrastructure for electric cars since unattended operation is possible through a wireless communication network.

Claims

1. A wireless power transmitting apparatus for an electric car, the wireless power transmitting apparatus comprising:

a main body (20) installed at one side in a parking zone (10);

a car detecting sensor installed at one side in the parking zone (10) and sensing a tire of the car to detect whether a car is stopped at a prescribed position;

one or more wireless power transmission pads (23) installed in a top part of the main body and supplying wireless power toward a reception pad of the car under a control of a wireless power controller;

a radio frequency identification (RFID) reader (21) installed in one side of the wireless power transmission pad and communicating with RFID of the car to detect information stored in the RFID;

a short range wireless communication module (22) installed one side of the wireless power transmission pad and transmitting various pieces of information on the wireless power transmitting apparatus to a wireless charging terminal of the car; and

the wireless power controller (52) installed inside the main body to control the components (21, 22, 23) and connected to a wireless communication network, and controlling wireless transmission of power supplied through the wireless power supplier (42),

wherein when the RFID reader (21) detects position information and transmission specification information on the wireless power reception pad, the wireless power controller (52) selects wireless power transmission pad, which corresponds to the wireless power reception pad, on a basis of the detected information, performs a matching process for highly efficient transmission on a basis of charging information on the car, the charging information being communicated through the short range communication module (22), and then performs wireless power supplying.

3. The wireless power transmitting apparatus according to claim 1, wherein the car detecting sensor is installed at a tire stopping plate (11) separately provided at both left and right sides of the main body (20).

4. The wireless power transmitting apparatus according to claim 1, wherein the main body (20) has a box type structure and is coupled to a cover part, which forms a top part, to form a body.

5. The wireless power transmitting apparatus according to claim 1, wherein the one or more wireless power transmission pads (23) matches wireless power in accordance with a transmission specification condition of wireless power reception pad of the car in a magnetic induction, resonant magnetic coupling, or magnetic field resonance type under a control of the wireless power controller (52) to perform wireless transmission.

6. The wireless power transmitting apparatus according to claim 1, wherein the RFID reader (21) reads RFID information in the car to detect mount position information and transmission specification information on the wireless power reception pad of the car.

7. The wireless power transmitting apparatus according to claim 1, wherein the short range wireless communication module (22) communicates with a short range wireless communication module of the car to transmit the wireless power transmission information for the wireless power controller to the car and to receive a battery charging amount, charging process information, driver'"'"'s selection information, and payment according to the charge amount in the car.

9. The wireless power transmitting apparatus according to claim 1, wherein the one or more wireless power transmission pads (23) has a lift function through which a height thereof is adjustable upward or downward.

11. The wireless power transmitting apparatus according to claim 1, wherein the main body (20) has a shape in which both side surfaces of a side that the car enters, have trapezoidal slopes for allowing the car to easily proceed over the main body (20) when the car is parked.

12. The wireless power transmitting apparatus according to claim 1, wherein one side of a bottom part of the main body (20) is buried under the ground of the parking zone and a part thereof exposed over the ground surface and the wireless power transmission pad mounted on a top part thereof have inclined edges.

13. The wireless power transmitting apparatus according to claim 1, wherein the wireless power supplier (42) allows eco-friendly energy, which is generated by photovoltaic power generation, wind power generation, and a fuel cell, to be stored in a battery (43) for power storage and is supplied as emergency power.

14. The wireless power transmitting apparatus according to claim 1, wherein the wireless power controller (52) recognizes a stop of the car through the car detecting sensor when the car enters the parking zone, operates the RFID reader and the short range wireless communication module, communicates with the RFID of the car through the RFID reader to detect the position information and the transmission specification information on the wireless power reception pad, transmits charging information toward a wireless charging terminal in the car through the short range wireless communication module, supplies power to the wireless power transmission pad facing the wireless power reception pad, adjusts matching with the wireless power transmission pad, transmits wireless power at the matched wireless power transmission pad, and when the wireless power transmission process is completed, receives charging completion information through the short range wireless communication module.

2. A wireless power transmitting apparatus for an electric car, the wireless power transmitting apparatus comprising:

a main body (20) installed at one side in a parking zone (10);

a car detecting sensor installed at one side in the parking zone (10) and sensing a tire of the car to detect whether a car is stopped at a prescribed position;

a home base (24) provided in a top part of the main body as a space in which each wireless power transmission pad is moveable;

a moveable rail (26) installed inside the home base (24) for a movement of each wireless power transmission pad;

the one or more wireless power transmission pads (23) moving on the moveable rail for facing wireless power reception pad of the car and supplying wireless power toward a reception pad of the car under a control of a wireless power controller;

an RFID reader (21) installed in one side of the wireless power transmission pad and communicating with RFID of the car to detect information stored in the RFID;

a short range wireless communication module (22) installed one side of the wireless power transmission pad and transmitting various pieces of information on the wireless power transmitting apparatus toward a wireless charging terminal of the car;

the wireless power controller (52) installed inside the main body (20) to control the components (21, 22, 23), connected to a wireless communication network, and controlling wireless transmission of power supplied through the wireless power supplier (42); and

a parking guidance frame (30) formed around the main body (20) and preventing a damage of the main body due to tire pressure of the car and guiding a correct parking.

8. The wireless power transmitting apparatus according to claim 2, wherein when the RFID reader (21) detects the position information and transmission specification information on the wireless power reception pad, the wireless power controller (52) moves positions of the wireless power transmission pad along the moveable rail (26) for allowing the one or more wireless power transmission pads to face the wireless power reception pad on a basis of the detected information, performs a matching process for highly efficient transmission on a basis of the charging information of the car, which is communicated through the short range wireless communication module (22), and then performs wireless power supplying.

10. The wireless power transmitting apparatus according to claim 2, where the parking guidance frame (30) comprises therein a plurality of support parts (31) for strongly supporting the main body (20) and forming a gap with a constant interval from the main body (20).

15. The wireless power transmitting apparatus according to claim 2, wherein the wireless power controller (52) recognizes a stop of the car through the car detecting sensor when the car enters the parking zone, operates the RFID reader and the short range wireless communication module, communicates with the RFID of the car through the RFID reader to detect the position information and the transmission specification information on the wireless power reception pad, moves the wireless power transmission pad to a short distance from the wireless power reception pad according to the position information and transmission specification information on the detected wireless power reception pad, transmits charging information toward a wireless charging terminal in the car through the short range wireless communication module, supplies power to the wireless power transmission pad facing the wireless power reception pad, adjusts matching with the transmission pad, transmits wireless power at the matched wireless power transmission pad, receives charge completion information through the short range wireless communication module when the wireless power transmission process is completed, and returns the moved wireless power transmission pad to an original position.

16. The wireless power transmitting apparatus according to claim 2, wherein the car detecting sensor is installed at a tire stopping plate (11) separately provided at both left and right sides of the main body (20).

17. The wireless power transmitting apparatus according to claim 2, wherein the main body (20) has a box type structure and is coupled to a cover part, which forms a top part, to form a body.

18. The wireless power transmitting apparatus according to claim 2, wherein the one or more wireless power transmission pads (23) matches wireless power in accordance with a transmission specification condition of wireless power reception pad of the car in a magnetic induction, resonant magnetic coupling, or magnetic field resonance type under a control of the wireless power controller (52) to perform wireless transmission.

19. The wireless power transmitting apparatus according to claim 2, wherein the RFID reader (21) reads RFID information in the car to detect mount position information and transmission specification information on the wireless power reception pad of the car.

20. The wireless power transmitting apparatus according to claim 2, wherein the short range wireless communication module (22) communicates with a short range wireless communication module of the car to transmit the wireless power transmission information for the wireless power controller to the car and to receive a battery charging amount, charging process information, driver'"'"'s selection information, and payment according to the charge amount in the car.

21. The wireless power transmitting apparatus according to claim 2, wherein the one or more wireless power transmission pads (23) has a lift function through which a height thereof is adjustable upward or downward.

22. The wireless power transmitting apparatus according to claim 2, wherein the main body (20) has a shape in which both side surfaces of a side that the car enters, have trapezoidal slopes for allowing the car to easily proceed over the main body (20) when the car is parked.

23. The wireless power transmitting apparatus according to claim 2, wherein one side of a bottom part of the main body (20) is buried under the ground of the parking zone and a part thereof exposed over the ground surface and the wireless power transmission pad mounted on a top part thereof have inclined edges.

24. The wireless power transmitting apparatus according to claim 2, wherein the wireless power supplier (42) allows eco-friendly energy, which is generated by photovoltaic power generation, wind power generation, and a fuel cell, to be stored in a battery (43) for power storage and is supplied as emergency power.