US 12,348,051 B2
Capacitive wireless power transfer coupler and application thereof
Enguo Rong, Wuhan (CN); Pan Sun, Wuhan (CN); Xusheng Wu, Wuhan (CN); Jin Cai, Wuhan (CN); Kangheng Qiao, Wuhan (CN); Xiaochen Zhang, Wuhan (CN); Gang Yang, Wuhan (CN); Lei Wang, Wuhan (CN); and Yan Liang, Wuhan (CN)
Assigned to NAVAL UNIVERSITY OF ENGINEERING, Wuhan (CN)
Filed by NAVAL UNIVERSITY OF ENGINEERING, Wuhan (CN)
Filed on Aug. 23, 2024, as Appl. No. 18/814,214.
Claims priority of application No. 202311118419.2 (CN), filed on Sep. 1, 2023.
Prior Publication US 2025/0079889 A1, Mar. 6, 2025
Int. Cl. H02J 50/05 (2016.01); H01G 4/38 (2006.01); H01G 4/20 (2006.01)
CPC H02J 50/05 (2016.02) [H01G 4/38 (2013.01); H01G 4/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A capacitive wireless power transfer coupler, comprising:
a coupler transmitting side, comprising two electrode plates arranged in a same plane, a shielding plate arranged parallel to the two electrode plates with a spacing interval, and a filling dielectric between each of the two electrode plates and the shielding plate; and
a coupler receiving side, having a same structure as the coupler transmitting side;
wherein a side provided with the two electrode plates of the coupler transmitting side faces another side provided with the two electrode plates of the coupler receiving side, and power transfer is achieved between the coupler transmitting side and coupler receiving side through a transfer dielectric; a relative dielectric constant of the filling dielectric is less than a relative dielectric constant of the transfer dielectric;
wherein at the coupler transmitting side, an area of the shielding plate is greater than a sum of areas of the two electrode plates in the coupler transmitting side;
wherein the coupler transmitting side further comprise an insulating cavity for enclosing the two electrode plates in the coupler transmitting side, the shielding plate in the coupler transmitting side, and the filling dielectric in the coupler transmitting side; the coupler receiving side further comprise an insulating cavity for enclosing corresponding the two electrode plates in the coupler receiving side, the shielding plate in the coupler receiving side, and the filling dielectric in the coupler receiving side.