To achieve the high accuracy of detection of a foreign object and a reduction in the area of a substrate.SOLUTION: A foreign object detection device 20 includes: a detection coil unit 22 including a detection coil substrate 220 and a plurality of coils 242 which are formed on one surface of the detection coil substrate 220 and each include a conductive pattern turned around the Z axis; and a detector 26 connected to the coils 242 to detect the existence of a foreign object based on a vibration signal output when each of the coils 242 is excited. The coils 242 each have an opening. The detection coil substrate 220 has a through hole 228 extending through the detection coil substrate 220, and a component space where a component 248 or a wire 250 is arranged, within each of the openings as seen in the Z-axis direction.SELECTED DRAWING: Figure 4

    【課題】異物検出精度を高くかつ基板面積を小型化可能とすることを目的とする。【解決手段】異物検出装置20は、検出コイル基板220と、検出コイル基板220の一面に形成され、Z軸を中心に周回する導体パターンを有する複数のコイル242と、を備える検出コイルユニット22、複数のコイル242に接続され、各コイル242が励磁されたときの振動信号から、異物の有無を検出する検出部26と、を備える。複数のコイル242は、それぞれ開口部を有し、検出コイル基板220は、Z軸方向に見て、開口部内に、検出コイル基板220を貫通する貫通穴228と、部品248または配線250が配設された配置スペースと、を有する。【選択図】図4


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    Title :

    FOREIGN OBJECT DETECTION DEVICE, POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE, AND POWER TRANSFER SYSTEM


    Additional title:

    異物検出装置、送電装置、受電装置および電力伝送システム


    Contributors:

    Publication date :

    2023-03-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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 / H01F MAGNETS , Magnete