Shell assembly for battery module, battery module and charging trailer

The utility model discloses a shell assembly used for a battery module, the battery module and a charging trailer, the shell assembly used for the battery module comprises a main body, a first reinforcing rib and an assembling strip, the main body is used for assembling a charging battery of the battery module; a grasping part is formed at the end part of the main body, and a cavity is formed at the lower end of the grasping part; the first reinforcing rib is arranged in the cavity; the assembly strip is connected with the main body; the assembly strip is assembled in the cavity and used for sealing the opening of the cavity. A complete handle can be formed through the assembly main body and the assembly strips, so that the portability of the battery module is improved; the shell assembly of the battery module is divided into a plurality of parts, so that processing and forming are facilitated, materials are saved, and the production cost is reduced. 本实用新型公开了一种用于电池模块的壳体组件、电池模块和充电拖车，其中，所述用于电池模块的壳体组件包括主体、第一加强筋和