| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device which includes a voltage equalization circuit and flexibly deals with increase and decrease in the number of power storage cells serially connected with each other. ! SOLUTION: A housing including a bottom surface, a side surface, and an upper surface is mounted on a machine body of a shovel. A power storage module including multiple power storage cells is disposed in the housing. A support member is fixed in the housing. The support member includes a support wall which is disposed in a posture perpendicular to the bottom surface of the housing. A least one circuit board, on which an equalization circuit which equalizes a voltage across terminals of the power storage cells is mounted, is supported by the support wall. ! COPYRIGHT: (C)2015,JPO&INPIT |
