Patent ID: 8574747
Filing Date: 2013-11-05
Classification: H01M,Y02E

Abstract:
1. A car power source apparatus comprising: a battery block having a plurality of connected batteries; a battery state detection section connected to the battery block; a base-plate that has the battery state detection section and the battery block mounted on top; a cover-plate that closes-off a top of the base-plate, establishes a battery holding region that holds the battery block between the base-plate and the cover-plate, and establishes an electronic component compartment that houses the battery state detection section between the base-plate and the cover-plate; and side-plates that close-off open regions between the cover-plate and the base-plate at opposite ends, wherein the cover-plate is provided with a top cover that establishes the battery holding region inside, and an electronic component cover that establishes the electronic component compartment inside, wherein the electronic component cover is layered on, and connected to the top cover of the cover-plate; stud bolts are fixed to the top cover, which is the lower layer, and through-holes are provided in the electronic component cover, which is the upper layer; the stud bolts are passed through the through-holes and nuts are threaded onto the stud bolts to attach the electronic component cover on top of the top cover, and wherein a gasket is interposed in a region where the electronic component cover and the top cover overlap at a location on the battery state detection section compartment-side of the stud bolts, and thereby achieving a water-tight structure at the connecting region of the top cover and the electronic component cover.