Tray, battery pack and vehicle

The utility model relates to a tray, a battery pack and a vehicle, the tray comprises a body, the body comprises an accommodating cavity for placing a battery, and a plurality of connecting parts are formed on the edge of the body; and the reinforcing assembly comprises a plurality of reinforcing pieces, and the reinforcing pieces correspond to the connecting parts one to one and are detachably connected with the connecting parts. Thus, the reinforcing pieces and the tray body are arranged in a split mode, so that the edges of the tray body are formed in a thin wall mode in the manufacturing process, the overall weight of the tray is reduced, and meanwhile the strength of the edges of the tray can be improved through the reinforcing pieces. In addition, the plurality of reinforcers can be conveniently disassembled and replaced with the edge of the body, and the strengths of the reinforcers at different positions are set according to specific working conditions, so that the weight of the battery pack is reduce