Vehicle body structure, battery assembly and vehicle

The vehicle body structure comprises a vehicle body frame and two threshold beams, the two threshold beams are arranged on the vehicle body frame, and the two threshold beams are oppositely arranged on the two sides of the vehicle body width of the vehicle body frame and extend in the length direction of a vehicle body. The two doorsill beams protrude out of the bottom face of the vehicle body frame towards the outside of the vehicle body and form a groove with the bottom face of the vehicle body frame, and the groove is suitable for containing a battery assembly. According to the vehicle body structure, the battery assembly can be placed in the groove between the bottom face of the vehicle body frame and the doorsill beam, the space of the groove is fully utilized, the utilization rate of the volume of the vehicle body is improved, and lightweight design of the vehicle is facilitated. 本实用新型公开了一种车身结构、电池组件和车辆，车身结构包括：车身框架和两个门槛梁，两个门槛梁设置于车身框架上，两个门槛梁在车身框架的车身宽度的两侧相对设置并沿车身长度方向延伸，两个门槛梁朝向车身外凸出于车身框架的底面并与车身框架底面形成凹槽，凹槽适于