US 12,463,472 B2
Charging device and charging method
Akira Matsubara, Osaka Fu (JP); Masahiro Seo, Osaka Fu (JP); Eisuke Kobayashi, Kanagawa Ken (JP); and Gentaro Takeda, Osaka Fu (JP)
Assigned to PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa (JP)
Filed by Panasonic Automotive Systems Co., Ltd., Kanagawa (JP)
Filed on Aug. 26, 2024, as Appl. No. 18/815,170.
Claims priority of application No. 2023-138689 (JP), filed on Aug. 29, 2023; application No. 2023-151428 (JP), filed on Sep. 19, 2023; and application No. 2024-078787 (JP), filed on May 14, 2024.
Prior Publication US 2025/0079912 A1, Mar. 6, 2025
Int. Cl. H02J 50/90 (2016.01); H02J 50/00 (2016.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/90 (2016.02) [H02J 50/005 (2020.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A charging device comprising:
a housing including a placement surface on which an object to be charged including a first coil is allowed to be placed;
a second coil housed in the housing at a position corresponding to the first coil; and
a hardware processor connected to memories and configured to
acquire a parameter indicating a distance between the first coil and the second coil,
generate inductive coupling between the first coil and the second coil when the distance indicated by the parameter is less than a distance threshold, and
generate resonant coupling between the first coil and the second coil when the distance indicated by the parameter exceeds the distance threshold.