MEDIUM OR LARGE-SIZED BATTERY PACK HAVING IMPROVED SAFETY FOR AN OPENING/CLOSING OPERATION

摘要

The present invention relates to a medium or large-sized battery pack having improved safety for an opening/closing operation, and more particularly, to a medium or large-sized battery pack for a medium or large-sized battery having improved opening/closing safety, wherein the battery pack comprises: an accommodation unit which accommodates a plurality of batteries; a cover unit which covers the accommodation unit; and a coupling unit which couples the accommodation unit and the cover unit. The accommodation unit and the cover unit are connected to the respective battery interior protecting circuits, and the connection states of the battery interior protecting circuits are determined by the coupling state of the coupling unit.