US 12,005,814 B2
Power supply device
Yasuyuki Yamamoto, Mie (JP); Hidetoshi Ishida, Mie (JP); Satoshi Yamamoto, Mie (JP); Kenichi Sagara, Miyagi (JP); Keizo Watanabe, Miyagi (JP); Yutaka Kikuchi, Miyagi (JP); Shu Sasaki, Miyagi (JP); and Fumihiro Sato, Miyagi (JP)
Assigned to AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/435,798
Filed by AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Feb. 17, 2020, PCT No. PCT/JP2020/005974
§ 371(c)(1), (2) Date Sep. 2, 2021,
PCT Pub. No. WO2020/179419, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 2019-039644 (JP), filed on Mar. 5, 2019.
Prior Publication US 2022/0144137 A1, May 12, 2022
Int. Cl. B60N 2/02 (2006.01); B60N 2/06 (2006.01); B60N 2/14 (2006.01); H02J 50/10 (2016.01)
CPC B60N 2/0224 (2013.01) [B60N 2/06 (2013.01); B60N 2/14 (2013.01); H02J 50/10 (2016.02)] 8 Claims
OG exemplary drawing
 
1. A power supply device comprising:
a power transmitter configured to supply power to a seat that can slide and rotate relative to a floor part of a vehicle, the power transmitter being provided on the floor part and extending along a slide direction in which the seat slides; and
a power receiver that is provided to the seat and that receives power from the power transmitter in a contactless fashion,
wherein the power transmitter is provided so that the length dimension thereof in the slide direction is longer than the length dimension thereof in a direction that is orthogonal to the slide direction, and
a part of the power receiver that receives power from the power transmitter is positioned close to the power transmitter within an installation area of the power transmitter while the seat slides and rotates,
wherein the power transmitter includes a power transmission coil that is formed by winding a winding wire,
the power transmission coil includes:
a first annular power transmission coil including a first extended power transmission portion that extends in the slide direction, and
a second annular power transmission coil including a second extended power transmission portion that extends in the slide direction along the first extended power transmission portion, the first annular power transmission coil being connected to the second annular power transmission coil.