A foreign object detection device for a coil device including a second coil to transmit power to a first coil wirelessly or receive power from the first coil wirelessly including: a foreign object detection coil configured to be located between the first coil and the second coil; and a cover configured to cover an upper portion of the foreign object detection coil, wherein a top surface of the cover includes at least one inclined surface inclined relative to a coil plane of the second coil, and the inclined surface is inclined downward from a low sensitivity region where detection sensitivity of the foreign object detection coil is relatively lower to a high sensitivity region where the detection sensitivity of the foreign object detection coil is relatively higher.
POWER TRANSMISSION SYSTEM, FOREIGN MATTER DETECTION DEVICE, AND COIL DEVICE
KRAFTÜBERTRAGUNGSSYSTEM, VORRICHTUNG ZUR ERKENNUNG VON FREMDKÖRPERN UND SPULENVORRICHTUNG
SYSTÈME DE TRANSMISSION D'ÉNERGIE, DISPOSITIF DE DÉTECTION DE CORPS ÉTRANGERS ET DISPOSITIF DE BOBINE
2022-02-09
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 / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |
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