A wireless charging system includes a first winding portion (15), a second winding portion (18) which is disposed with an interval between the first winding portion and the second winding portion in an axis (17) direction of the first winding portion, and a pair of magnetic members (23, 14) which are disposed so as to sandwich the first winding portion and the second winding portion in the axis direction. In this case, protrusion portions (22a, 22b) which protrude toward the other magnetic member (14) are provided in one magnetic member (23). Also, the magnetic member (23) is held so as to be able to move forward and backward toward the other magnetic member (14). As a result, since the coefficient of magnetic coupling between a transmitting unit and a receiving unit during charging is enhanced, a charging efficiency can be enhanced.
WIRELESS POWER SUPPLY APPARATUS
DRAHTLOSE STROMVERSORGUNGSVORRICHTUNG
APPAREIL D'ALIMENTATION ÉLECTRIQUE SANS FIL
2015-10-14
Patent
Electronic Resource
English
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01F MAGNETS , Magnete / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |