| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact battery pack capable of suppressing increase in size in a vehicle width direction and in a vehicle front and rear direction, and of securing both a crew member space and a terrestrial height of the vehicle, by reviewing a shape and an attachment structure of a bus bar connecting battery modules housed in the battery pack in series, in the battery pack mounted under the floor of a vehicle body and housing a plurality of battery modules.SOLUTION: Battery modules 17a-e and 18a-e are adjacent in a vehicle front and rear direction so that a longitudinal direction of the battery modules lies in a vehicle width direction, and arranged so that positive electrode terminals and negative electrode terminals of adjacent battery modules are adjacent to each other. The bus bars for electrical series connection are configured by an outside bus bar 43 coupling at an outside part in the vehicle width direction, and an inside bus bar 45 coupling at a central part in the vehicle width direction. The outside bus bar 43 is provided so as not to protrude from an upper surface of the battery modules. The inside bus bar 45 is provided to pass through a part above the battery modules. |
