| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a battery pack.SOLUTION: A battery pack includes: battery cells; and first and second cases which are coupled to each other and house the battery cells. The first case includes a first rib which extends along an edge part of the first case and defines a housing space of the battery cells therein. The first rib has an irregularity part which alternately includes thick parts and thin parts. The structure inhibits deformation caused by cooling contraction after the case which provides the housing space of the battery cells is molded at a high temperature and reduces assembly noise.</p> |
