| 摘要 |
PURPOSE: A battery case is provided to prevent welding of water penetrated through an air inlet and an air outlet between blocking parts by forming a drain hole in the blocking part. CONSTITUTION: A battery case comprises an air inlet, an air outlet(300), an air inlet cover in which a first opening is formed on a bottom, an air outlet cover(310) in which a second opening is formed on a bottom, a first blocking part(410) formed slopes to become receded from inner side of the air inlet cover and the air outlet cover toward the top along longitudinal direction of the battery case; a second blocking part(420) formed slopes to become receded from outer side of the battery case toward the top along longitudinal direction of the battery case; and a drain hole(430) hollowly formed of a specific region of bottom of the first and the second blocking part.
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