US 12,115,871 B2
Wireless power receiving system, mobile object, and vehicle wheel
Hiroshi Fujimoto, Tokyo (JP); Takehiro Imura, Tokyo (JP); Osamu Shimizu, Tokyo (JP); Katsuhiro Hata, Tokyo (JP); Keizo Akutagawa, Tokyo (JP); Yasumichi Wakao, Tokyo (JP); Isao Kuwayama, Tokyo (JP); and Daisuke Gunji, Fujisawa (JP)
Assigned to THE UNIVERSITY OF TOKYO, Tokyo (JP); BRIDGESTONE CORPORATION, Tokyo (JP); and NSK Ltd., Tokyo (JP)
Appl. No. 17/597,788
Filed by THE UNIVERSITY OF TOKYO, Tokyo (JP); BRIDGESTONE CORPORATION, Tokyo (JP); and NSK Ltd., Tokyo (JP)
PCT Filed Jul. 22, 2020, PCT No. PCT/JP2020/028506
§ 371(c)(1), (2) Date Jan. 24, 2022,
PCT Pub. No. WO2021/015252, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 2019-137267 (JP), filed on Jul. 25, 2019.
Prior Publication US 2022/0266702 A1, Aug. 25, 2022
Int. Cl. B60L 53/12 (2019.01); B60K 1/04 (2019.01); B60K 7/00 (2006.01); B60L 9/00 (2019.01); H02J 50/10 (2016.01)
CPC B60L 53/12 (2019.02) [B60K 1/04 (2013.01); B60K 7/00 (2013.01); B60L 9/00 (2013.01); H02J 50/10 (2016.02); B60K 2007/0092 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless power receiving system comprising:
a vehicle wheel of a mobile object;
a power receiving device having a power receiving coil configured to receive electric power supplied wirelessly from a power transmission coil of a power transmission device at least partially embedded in a road, at least part of the power receiving coil being contained in the vehicle wheel; and
at least one in-vehicle device installed in the mobile object, the in-vehicle device being energizably connected to the power receiving device,
wherein the power receiving coil is capable of supplying electric power bidirectionally,
the power receiving device is configured to transmit the electric power received from the power transmission device to the in-vehicle device and wirelessly transmit electric power supplied from the in-vehicle device to a device at least partially embedded in the road,
the vehicle wheel is a tire-wheel assembly constituted of a tire and a wheel,
the wheel comprises a rim portion formed of a resin material, and
the at least part of the power receiving coil is contained inside the rim portion of the wheel in a tire radial direction.