A foreign object detection device includes a plurality of coils (240) each including a first conductive pattern mounted on one surface of a detection coil substrate (220) to be excited and thus generate a vibration signal, a detector (26) to detect the existence of a foreign object on the basis of the vibration signal, a first connecting line (230) to connect one terminals (T1) of the individual coils (240) to the detector (26), and a second connecting line (232) to connect the other terminals (T2) of the individual coils (240) to the detector (26). The first connecting line (230) and the second connecting line (232) extend in substantially identical paths in at least segments mounted on the detection coil substrate (220).


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    Title :

    Foreign object detection device, power transmission device, power reception device, and power transmission system


    Contributors:
    GOTANI AKIRA (author) / KONDO KAZUKI (author)

    Publication date :

    2024-01-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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