Patent attributes
A connection unit of the present invention includes: a rail member extending in a direction where a plurality of storage elements is aligned; and a plurality of bus bar units each including an engagement portion movable along the rail member in the predetermined direction, and a bus bar fixed to electrode terminals of the storage elements adjacent to each other in the predetermined direction and connected to the engagement portion. The plurality of bus bar units engages with the rail member so as to be aligned in the predetermined direction, and the bus bar units adjacent to each other are provided so as to be movable independently along the predetermined direction. Entire assembly tolerance in the plurality of storage elements aligned in the predetermined direction can be absorbed (permitted) by adjusting distances between the independent bus bar units, thereby making it possible to easily assemble the plurality of bus bars.
