| 摘要 |
PROBLEM TO BE SOLVED: To suppress mutual adverse influences caused at a plurality of heat generation sources inside a unit.SOLUTION: A battery unit 10 includes: a battery pack module 11 having a plurality of single cells 41; a control substrate 12 having a control section that controls charging and discharging of the battery pack module 11; and a housing case 16 that accommodates the battery pack module 11 and the control substrate 12. The control substrate 12 includes a power element P for power control mounted thereon that controls input and output processing of electric power to the battery pack module 11. The control substrate 12 includes a first substrate section X1 disposed to overlap with the battery pack module 11 above the battery pack module 11, and a second substrate section X2 disposed not to overlap with the battery pack module 11. The power element P is mounted on the second substrate section X2. |
