| CPC H01M 50/284 (2021.01) [H01M 10/425 (2013.01); H01M 50/209 (2021.01); H01M 50/298 (2021.01); H01M 50/502 (2021.01); H05K 1/028 (2013.01); H01B 7/0823 (2013.01); H01B 9/006 (2013.01); H05K 2201/10037 (2013.01)] | 12 Claims |
|
1. A battery pack, comprising:
battery cells;
a circuit unit connected to the battery cells; and
a flexible wiring connecting the battery cells and the circuit unit to each other,
wherein:
the flexible wiring includes:
a first end portion to which a plurality of conductive lines are physically bound; and
a first group of conductive lines and a second group of conductive lines which extend from the first end portion, branch off from each other, and then extend in parallel to each other,
the first group of conductive lines includes a folded portion at a branching position at which the first group of conductive lines is separated from the second group of conductive lines,
the first group of conductive lines includes a first connection position, a second connection position, and a third connection position, each of the first to third connection positions being connected to a respective battery cell along a first direction,
at least one conductive line of the first group of conductive lines is connected at the first connection position, at least two conductive lines of the first group of conductive lines are connected together at the second connection position, and at least three conductive lines of the first group of conductive lines are connected together at the third connection position,
the at least two conductive lines connected together at the second connection position include a first conductive line and a second conductive line, the first conductive line including a first cut position at which the first conductive line is cut, the first cut position being between the first connection position and the second connection position such that the first connection position is electrically isolated from the second connection position along the first conductive line, and the second conductive line continuously extends from the second connection position to the first end portion, and
the at least three conductive lines connected together at the third connection position include the first conductive line, the second conductive line, and a third conductive line, the first conductive line and second conductive line including a second cut position at which the first conductive line and second conductive line are cut, the second cut position being between the second connection position and the third connection position such that the second connection position is electrically isolated from third connection position along the first and second conductive lines and the third conductive line continuously extends from the third connection position to the first end portion.
|