Patent attributes
To connect a bus bar plate to a battery module, a plurality of recess portions provided on a plurality of holders so as to be spaced in the stacking direction are engaged with a plurality of projection portions provided on the bus bar plate to be spaced in the stacking direction. Since the lengths “a” of the plurality of projection portions are the same, and the plurality of recess portions are formed from a first recess portion having a length “a” and a second recess portion having a length “b” larger than the length “a,” the precision of positioning of the bus bar plate can be ensured by engagement between the projecting portion and the first recess portion, and even if the gap between the projecting portions or the recess portions is nonuniform, it is possible to assemble the bus bar plate onto the holder with high precision.
