Battery pack box body assembly and battery pack

The utility model belongs to the technical field of batteries, and discloses a battery pack box body assembly and a battery pack, and the battery pack box body assembly comprises a bottom plate, a structural beam, a liquid cooling plate and an accessory mounting plate, the structural beam surrounds the bottom plate and is fixedly connected with the bottom plate. The liquid cooling plate is detachably connected to the bottom plate. The accessory mounting plate is fixed on the bottom plate, a plurality of accessory mounting positions are arranged on the accessory mounting plate, and the accessory mounting positions are used for mounting accessories. According to the battery pack box body assembly disclosed by the utility model, the strength of the bottom plate can be ensured, the protection effect on the liquid cooling plate is improved, and the processing workload of the battery pack box body assembly is reduced. 本实用新型属于电池技术领域，公开了一种电池包箱体组件及电池包，电池包箱体组件包括底板、结构梁、液冷板和配件安装板。结构梁环绕底板且与底板固定连接。液冷板可拆卸的连接于底板上。配件安装板固定于底板上