| 摘要 |
<p>Provided is a wireless power supply device for a car wheel with an antenna part which is connected to a driving shaft wheel, rotates with the car wheel, and is robust against a centrifugal force. The wireless power supply device for the car wheel according to the desirable embodiment of the present invention is mounted around a hub bearing of the driving shaft of the car wheel and wirelessly supplies power from a car body to the car wheel. Thereby, an electric device like a sensor installed in the car wheel receives the power. The wireless power supply device for the car wheel includes a load coil unit which includes a hollow cylindrical receiving ring which includes one end thereof which is opened and the other end thereof with a circular hole on the center thereof and a receiving antenna which is attached on the inner circumference of the receiving ring, wherein, the inner ring of the hub bearing is fixedly inserted into the circular hole, and a source coil part which is located in the receiving ring of the load coil part and includes a transmitting ring which shields one end of the receiving ring which is opened by including a flange which protrudes and is extended in a radius direction on one end of a hollow cylindrical shape with both opened ends and a transmitting antenna which is attached on the outer circumference of the transmitting ring and faces the receiving antenna. Wherein, the outer ring of the hub bearing is fixedly inserted into the inner circumference of the transmitting ring. Thereby, the power is wirelessly transmitted from the source coil part to the load coil part.</p> |
