Z-Shaped Bus Bar for a Battery Pack

摘要

A battery pack with a compact and robust bus bar assembly is provided. The batteries within the pack are divided into groups, where the batteries within each battery group are connected in parallel and the groups are connected in series. A repetitive sequence of overlapping bus bars is used, with each bus bar comprised of upper and lower segments coupled together via a step segment. The overlapping design allows the upper surface of the upper segment of each of the repetitive bus bars to be aligned within an upper plane, and the lower surface of the lower segment of each of the repetitive bus bars to be aligned within a lower plane.

主权项

1. A battery pack, comprising:
a plurality of batteries, each battery of said plurality of batteries comprising a first terminal at a first end portion of said battery and a second terminal at said first end portion of said battery, wherein said plurality of batteries are divided into a plurality of battery groups, each battery group of said plurality of battery groups comprising a subset of said plurality of batteries, wherein said batteries within each subset of said plurality of batteries are electrically connected in parallel, and wherein said battery groups of said plurality of battery groups are electrically connected in series; and a plurality of bus bars positioned proximate to said first end portion of each of said plurality of batteries, wherein each battery of each subset of said plurality of batteries is electrically connected via said first terminal to a first bus bar segment of one bus bar of said plurality of bus bars and via said second terminal to a second bus bar segment of an adjacent bus bar of said plurality of bus bars.