A foreign object detection device includes a detection coil unit including a detection coil substrate (220) and a plurality of coils (242), which are mounted on a 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 on the basis of a vibration signal output when each of the coils (242) is excited. The coils (242) each define an opening. The detection coil substrate (220) has a through hole (228) extending through the detection coil substrate (220), and a component space for accommodating a switch (248) or a wiring pattern (250), within each of the openings of the coils (242) as seen in the Z-axis direction.
FOREIGN SUBSTANCE DETECTION DEVICE, ELECTRICITY TRANSMISSION DEVICE, ELECTRICITY RECEPTION DEVICE, AND ELECTRIC POWER TRANSMISSION SYSTEM
2022-08-25
Patent
Electronic Resource
English
European Patent Office | 2021
|European Patent Office | 2023
|European Patent Office | 2022
|European Patent Office | 2022
|European Patent Office | 2022
|