Battery unit

摘要

A battery unit has a battery pack module that has a plurality of single cells, a control circuit board that has a control section that controls a charge and discharge in the battery pack module, and an accommodation case where the battery pack module and the control circuit board are accommodated. The control circuit board is disposed in a position above the battery pack module, and separated away from the base plate by a distance more than a distance from the base plate to a wall top end part of the wall section. Moreover, the submergence sensor is disposed in a position nearer to the base plate than to the wall top end part of the wall section that is in a space within the case 16 surrounded by the wall section.

主权项

1. A battery unit comprising:
a battery pack module that has a plurality of single cells; a control circuit board that has a control section that controls a charge and discharge in the battery pack module; an accommodation case where the battery pack module and the control circuit board are accommodated; a base formed as the accommodation case that has a base plate where the battery pack module is installed and a wall section rising from the base plate so as to surround the battery pack module; and a submergence sensor electrically connected to the control section that detects submergence of the battery unit; the control circuit board is disposed in a position that is one side of the battery pack module opposite to the base plate, and separated away from the base plate by a distance more than a distance from the base plate to a wall top end part of the wall section; and the submergence sensor is disposed in a position nearer to the base plate than to the wall top end part of the wall section that is in a space within the case surrounded by the wall section.