Busbar module and power supply unit including same busbar module

A power supply unit, comprising:

• a plurality of batteries of a battery unit in which the batteries are arranged so that electrodes of each of the batteries having different polarities are disposed adjacent to each other;
• and
• a busbar module for connecting the plurality of batteries of the battery unit, the busbar module comprising:
• a plurality of busbars that connect the electrodes adjacent to each other;
• a plurality of terminals connected to the busbars respectively to detect a voltage of the batteries;
• a plurality of wires connected to the terminals respectively;
• a plurality of plates accommodating the busbar, the terminals and the wires, and provided on an upper surface of the battery unit;
• and
• a connector connecting the plates together and including:
• a plate portion which is erected so as to extend along a direction which is orthogonal to the busbars and in which the plurality of batteries are aligned;
• a lock portion provided on the plate portion;
• and
• a lock receiving portion which is locked to the lock portion.