BATTERY PACK

摘要

A battery pack includes a module stack body having a plurality of stacked battery modules; first and second connecting members each provided on the same surface of the module stack body in order to hold the stacked battery modules and extending in the stacking direction of the battery modules; a first reinforcing member fixed to the first and second connecting members at first and second fixed points; and a second reinforcing member fixed to the first and second connecting members at third and fourth fixed points. Orientation of the components along the stacking direction of the battery modules of vectors having respectively the first and third fixed points as a start point and the second and fourth fixed points as an end point are opposed to each other.

主权项

1. A battery pack, comprising:
a first end plate provided on one end of the module stack body; a second end plate provided on the other end of the module stack body; a module stack body having a plurality of stacked battery modules; a first connecting member extending in the stacking direction of the plurality of battery modules to hold the plurality of stacked battery modules; a second connecting member disposed in the same surface of the first connecting member and extending in the stacked direction of the plurality of battery modules to hold the plurality of the stacked battery modules; a first reinforcing member that is fixed to the first connecting member at a first fixed point and fixed to the second connecting member at a second fixed point; a second reinforcing member that is fixed to the first connecting member at a third fixed point and fixed to the second connecting member at a fourth fixed point; a first fixing bolt for fastening the first end plate and the first connecting member; a second fixing bolt for fastening the first end plate and the second connecting member; a third fixing bolt for fastening the second end plate and the first connecting member; and a fourth fixing bolt for fastening the second end plate and the second connecting member, wherein each of the axial directions of the first to fourth fixing bolts extends in a direction substantially perpendicular to the side surface and the orientation of a component along the stacking direction of the battery modules of a vector directing from the first fixed point toward the second fixed point and the orientation of a component along the stacking direction of the battery modules of a vector directing from the third fixed point toward the fourth fixed point are opposite to each other.