The prefabricated battery compartment is a container for energy storage equipment, responsible for storing key facilities such as batteries, inverters, and distribution equipment. It is one of the core components of the energy storage system. The general prefabricated battery compartment must have these basic functions, including a thermal insulation system, temperature control system, insulation system, flame retardant system, fire alarm system, safety escape system, emergency system, fire protection system, video surveillance and other automatic control and safety guarantee systems.

Today, from a functional perspective, I would like to share with you the considerations for structural design in this area (if there are any errors, you can correct them in the comments section, thank you very much)

1. Waterproof design: Prefabricated battery compartments are often deployed outdoors or in harsh environments, and waterproofing is one of the most important functions in their design. Therefore, it must be able to prevent rainwater, snow water, and other external water sources from seeping into the cabin, ensuring no water accumulation, seepage, or leakage. Ensure that electrical equipment such as batteries are not affected by moisture, short circuits, or even fires. The prefabricated battery compartment is used in general outdoor environments (such as urban energy storage systems), and the protection level IP54 is usually sufficient. If applied to extreme or special environments (such as high humidity, strong sandstorms, or near water sources), higher levels such as IP65/IP66/IP67 must be considered to provide more comprehensive protection. Therefore, in the design process, high-strength sealing materials such as silicone sealing strips and polyurethane sealing coatings are used to seal doors, windows, joints, and cable penetrations. The steel structure shell needs to undergo surface treatment, such as spraying waterproof coating, to prevent moisture infiltration. Equipped with a drainage system to ensure that there is no water accumulation inside and to avoid affecting the service life of batteries and equipment.

Note: IP54 (basic requirement)

Dust proof level 5: prevents harmful amounts of dust from entering, but a small amount of dust may enter without affecting normal operation.

Dust proof level 6: completely prevents dust from entering, ensuring that internal equipment is not damaged by dust.

Waterproof level 4: It can prevent splashing water from all directions and will not have harmful effects on the equipment. Grade 5 or above: prevents low-pressure water jet, IP66 or above can prevent heavy rainfall and wave impact, IP67 can be immersed in water for a short period of time.

2. Fire prevention design:

Battery systems, especially lithium batteries, may experience fires during operation due to external impacts, overcharging, short circuits, and other factors. Therefore, fire protection design is a crucial part of battery prefabricated compartment design. Its purpose is to minimize the risk of fire and provide timely firefighting measures.

Structural design precautions:

① Use fire-resistant and high-temperature resistant materials (such as steel plates, non combustible insulation materials) to construct the cabin, ensuring that external fire sources cannot quickly penetrate.

② Installing fire doors or partitions can effectively isolate the source of fire in the event of a fire. At least one compartment between adjacent compartments has a fire resistance time of not less than 3 hours Equipped with an automatic fire extinguishing system, such as gas fire extinguishers or sprinkler systems, to ensure timely extinguishing of fires in the cabin.

3. Anti corrosion design is particularly important due to the various environmental challenges that battery prefabricated compartments often face, including high humidity, high salt, high temperature, and other conditions. The shell, brackets, and wiring terminals of prefabricated cabins need to be protected against oxidation and corrosion to extend the service life of the equipment.

Structural design considerations:

① The shell is usually made of corrosion-resistant materials such as stainless steel, hot-dip galvanized steel sheet, or treated with special coatings (such as polyurethane coating, epoxy coating) to increase its corrosion resistance.

② The electrical connection terminals are made of gold-plated or silver plated materials to avoid corrosion caused by long-term exposure to humid air Increase air circulation channels, keep the cabin dry, and reduce corrosion risks from the source.

4. Sand-proof design battery prefabricated cabin is usually installed in desert, sandy areas, where sand and dust are prone to enter the cabin, the performance of the battery system, and even may lead to failure. Therefore, sand-proof design is essential.

Structural Design Considerations:

① Install sand and dust filters at ventilation outlets, exhaust ports, etc., to prevent sand particles from the cabin.

② Strengthen the sealing between the cabin and the outside world to prevent wind and sand from entering through seams, doors, and windows.

③ up exhaust and ventilation systems to ensure smooth airflow and reduce the impact of sand and dust on battery equipment.

5. UV Protection Design Ultraviolet (UV) radiation accelerate the aging of external materials of the battery prefabricated cabin, affecting its service life and structural stability, especially in environments exposed to direct sunlight for long periods., UV protection design is also necessary.

Structural Design:

① Use UV-resistant materials, especially for the shell material, which needs to have high UV resistance. For, polyvinyl chloride (PVC) or high-density polyethylene (HDPE) materials can effectively prevent UV erosion.

② Coat the shell surface with UV paint to reduce direct UV exposure and photoaging.

③ Solar heat insulation boards or reflective coatings can be used to reduce direct UV exposure to the cabin

6. Vibration-proof Design:

Since the battery prefabricated cabin may be installed in environments with frequent vibrations (such as during, in industrial areas, etc.), vibration-proof design is crucial. Excessive vibration can damage the battery system, inverter, and other equipment, and even cause short or failures.

Structural Design:

① Use vibration-proof support structures, such as spring shock absorbers, rubber pads, etc., to absorb vibration energy.

② battery equipment is equipped with shock-absorbing devices inside to ensure that the battery and electronic components are not damaged by vibration.

③ Design anti-vibration foot frames support structures to ensure the stability of the cabin.

7. Insulation Design:

The battery prefabricated cabin often operates in environments with large temperature differences, especially in regions, where low temperatures can lead to a decrease in battery performance and even cause failures. Insulation design can maintain the temperature inside the cabin within an appropriate range, the efficiency and lifespan of the battery.

Structural Design:

① The shell uses insulation materials, such as polyurethane foam, rock wool boards, etc., which effectively prevent heat loss.

② Equipped with a temperature control system, which regulates the temperature inside the cabin through heaters, temperature-controlled fans, and other equipment, that the battery operates normally in cold environments.

③ Strengthen the insulation design to reduce the impact of high or low external temperatures on the equipment