A coil unit includes a second self-resonant coil electromagnetically resonating with a spaced, first self-resonant coil to perform at least one of transmitting power to the first self-resonant coil and receiving power from the first self-resonant coil, the second self-resonant coil including a first coil and a plurality of second coils provided inside the first coil, the direction of a magnetic field formed by the first coil is the same as those formed by the second coils.
Coil unit, contactless power transfer apparatus, vehicle, and contactless power feeding system
29.12.2015
Patent
Elektronische Ressource
Englisch
IPC: | H01F MAGNETS , Magnete / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
Contactless power feeding apparatus and contactless power feeding system
Europäisches Patentamt | 2018
|Contactless power feeding system and contactless power transfer system
Europäisches Patentamt | 2021
|