Abstract: A connector device is provided, including a vehicle connector and a charging connector which are detachably connected to each other. The vehicle connector has electric power line terminals substantially coplanar with a flat connection surface and a plurality of signal line terminals which are arranged on a radial outside of the electric power line terminals The charging connector has electric power line terminals and a plurality of signal line terminals which are arranged substantially coplanar with a flat connection surface and are respectively in surface contact with the electric power line terminals and the plurality of signal line terminals during the connection with the vehicle connector. The connector connection determination device determines whether a connection state between the two connectors according to a detection result of whether the signal line terminals are in contact with each other when the charging connector is attached to the vehicle connector.

Abstract: A connector device is provided, including a vehicle connector and a charging connector which are detachably connected to each other. The vehicle connector has electric power line terminals substantially coplanar with a flat connection surface and a plurality of signal line terminals which are arranged on a radial outside of the electric power line terminals The charging connector has electric power line terminals and a plurality of signal line terminals which are arranged substantially coplanar with a flat connection surface and are respectively in surface contact with the electric power line terminals and the plurality of signal line terminals during the connection with the vehicle connector. The connector connection determination device determines whether a connection state between the two connectors according to a detection result of whether the signal line terminals are in contact with each other when the charging connector is attached to the vehicle connector.

Abstract: In coreless current sensors of a coreless current sensor structure, and in a current detection method employed in the coreless current sensor structure, a coil-like portion that surrounds the outer circumference of a conductor, such as a shield plate, is formed of a connecting line connected to a terminal of a magnetic detection element.