| abstract |
An object of the present invention is to improve the configuration of a power path, thereby realizing a reduction in substrate size. A battery unit is provided in series in a power path between a battery module module and a Pb terminal electrode, and a Pb terminal electrode and an ISG terminal electrode that perform input / output of power from / to the outside. Two switch portions SW1 and SW2, and provided in the housing case so as to extend along the control board 12 from the ISG terminal electrode 23 at a position outside the peripheral edge portion of the control board 12, and in the power path, two switches And a bus bar 26 that branches from a connection point N2 between the parts SW1 and SW2 and that connects the connection point N2 and the ISG terminal electrode 23 to form a branch path. [Selection] Figure 7 |