US 12,377,737 B2
Wireless power reception system, moving body, and wheel
Hiroshi Fujimoto, Tokyo (JP); Osamu Shimizu, 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. 17/754,668
Filed by THE UNIVERSITY OF TOKYO, Tokyo (JP); BRIDGESTONE CORPORATION, Tokyo (JP); and NSK Ltd., Tokyo (JP)
PCT Filed Sep. 10, 2020, PCT No. PCT/JP2020/034377
§ 371(c)(1), (2) Date Apr. 8, 2022,
PCT Pub. No. WO2021/070554, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 2019-186309 (JP), filed on Oct. 9, 2019.
Prior Publication US 2023/0086747 A1, Mar. 23, 2023
Int. Cl. H02J 50/10 (2016.01); B60L 53/12 (2019.01); B60L 53/30 (2019.01); H02J 50/00 (2016.01)
CPC B60L 53/12 (2019.02) [B60L 53/30 (2019.02); H02J 50/005 (2020.01); H02J 50/10 (2016.02); B60L 2220/44 (2013.01); B60L 2220/46 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A wireless power reception system comprising:
a power reception device including a power reception coil configured to receive power supplied wirelessly from a power transmission coil of a power transmission device installed in a road surface, at least a portion of the power reception coil being housed in a wheel of a moving body; and
an onboard device installed in the moving body, the onboard device being electrically connected to the power reception device, wherein the power reception device is capable of transmitting the received power to the onboard device,
the power reception coil includes a stacked plurality of spiral coil layers,
the power reception device is provided with a plate-shaped wire rod support portion, and
a wire rod forming the power reception coil is disposed to follow a spiral groove formed in the wire rod support portion.