Energy storage box battery bracket shell

What is a power battery pack box?

The power battery pack box is the core component of the BEV. The power battery pack provides energy for the whole vehicle, and the battery module is protected by the outer casing. The battery pack is generally fixed at the bottom of the car, below the passenger compartment, by means of bolt connections.

What does a battery bracket do?

Serving as the primary component responsible for carrying and protecting the power battery, the battery bracket fulfills paramount roles including battery system support, heat dissipation, collision prevention, and bottom contact prevention.

Why is battery pack box structure important?

Abstract. The power battery is the only source of power for battery electric vehicles, and the safety of the battery pack box structure provides an important guarantee for the safe driving of battery electric vehicles. The battery pack box structure shall be of good shock resistance, impact resistance, and durability.

What materials are used for battery pack brackets?

Lightweight material applications for battery pack brackets include the utilization of aluminum alloy, high-strength steel, and composite materials. Among these options, aluminum alloy materials are the mainstream choice as a result of their lightweight properties.

Why does a car battery pack box need a shell?

When the car is impacted by external force and the excitation impact caused by the uneven road, the battery pack box shell is required to protect the battery module from an external force, so that the single cell is not squeezed, resulting in electrolyte leakage, or battery short circuit, thermal runaway, and other problems.

Where is the battery pack box arranged?

The battery pack box of the target vehicle is arranged under the chassis, below the floor of the passenger compartment, disassembled from the electric vehicle. The appearance structure of the box is shown in Fig. 3. After removing the upper cover, the battery pack module is presented, and the structure is shown in Fig. 4.