Battery pack system and vehicle

The utility model provides a battery pack system and a vehicle. The variable medium which is converted from the first state to the second state in the power-on state is arranged in the cavity of the anti-collision rod. According to the battery pack system and the vehicle, when it is detected that the battery pack is about to be impacted, the variable medium is powered on, so that the variable medium is converted from the first state to the second state, the strength of the anti-collision frame is improved, and the battery pack is prevented from being damaged due to impact; and the state of the variable medium can be adjusted by adjusting the magnitude of the current, so that the variable medium improves different strengths for the anti-collision frame, and therefore, the battery pack system not only can improve the protection strength of the battery pack, but also can adjust the own strength according to different working conditions. 本实用新型提供的一种电池包系统和车辆。通过在防撞杆的腔体内设置在通电状态下从第一状态转换为第二状态的可变介质。通过上述公开的电池包系统和车辆，可在检测到