Patent ID: 8017259

Claim:
A battery management system for controlling an operation of a middle- or large-sized battery pack, the battery management system comprising: a battery management system printed circuit board (BMS PCB) comprising a circuit and elements for controlling the operation of the battery pack, and indentation parts at peripheral edges of the BMS PCB; a connector attached to one side of the BMS PCB; a housing including a housing body for receiving the BMS PCB while partially exposing the connector, and a cover for covering the housing body, wherein the cover is coupled to the housing body while the cover is disposed on the housing body; and a waterproofing member including coupling holes, and interposed between the housing body and the cover, constituting the housing, such that the waterproofing member is in tight contact with the interface between the housing body and the cover, the waterproofing member being constructed in a structure to be coupled at coupling regions of the housing body and the cover.