Vehicular power supply system

摘要

In a vehicular power supply system, inclined portions (16c) extending obliquely upward toward the exterior from two mutually opposing side edges of a waterproof case (14) are formed on a hanger frame (16), and an upper face opening (14b) of the waterproof case (14) and an outer peripheral part of a lid member (15) are equipped with extended portions (14a, 15a) extending upward so as to cover the inclined portion (16c) of the hanger frame (16). This enables water flowing on an upper face of the lid member (15) or water that has accumulated on the upper face of the lid member (15) to be blocked by the extended portions (14a, 15a) and to be prevented from entering the interior of the waterproof case (14) via an outer peripheral face of the hanger frame (16) running through mating faces of a lid member (15) and the waterproof case (14) housing a battery module (24) and a high voltage electrical component (33).