Patent attributes
A control module is arranged side by side with a battery module. The control module includes a bus bar by which the battery module and an electric load are electrically connected to each other; a switch by which an electrical connection between the bus bar and the electric load is switched on and off; a current sensor by which a current of the bus bar is detected; and a shielding part. The current sensor detects current passing through the bus par by converting, to an electrical signal, a magnetic field generated by the current passing though the bus bar. The switch generates a magnetic field to switch over connections between the bus bar and the electric load based on the generated magnetic field. The shielding part is arranged between the current sensor and the switch.