The working principle of the TEC car refrigerator is based on the Peltier effect (see TEC science Class Session 1) : When the car refrigerator is powered on, the current passes through the semiconductor material, forming a cold and hot difference at the contact point, one side absorbs heat (cold end), the other side releases heat (hot end), and then forms a temperature difference between the two ends to achieve the desired cooling effect.

① High cooling efficiency: TEC can quickly respond to current changes and achieve good cooling effect in a short time. This makes the car refrigerator perform well in situations where rapid cooling is required.

② Silent operation: TEC directly drives heat transfer through current, without the use of mechanical moving parts. This makes the car refrigerator run more stable, reduces the noise and vibration caused by mechanical movement, and gives passengers a quiet and comfortable ride experience.

③Easy installation: TEC is small in size and light in weight, which is suitable for small cold storage equipment. This design makes the installation of the car refrigerator more flexible and convenient, and it is also easier to repair and replace the refrigerator in the later period.

④Energy saving and environmental protection: Compared with traditional compressor refrigeration, TEC technology is more energy saving; And in use without refrigerant, to avoid refrigerant leakage caused by pollution to the environment.

When people are driving, they need a small cold storage device to preserve food and drinks, and the car refrigerator just meets this need. It provides travelers with a reliable refrigeration solution to ensure the freshness of food and beverages during the journey. 2024 is the first year of the pre-loaded car refrigerator, Xiaomi Automobile, Ask and other models have begun to apply advanced semiconductor refrigeration solutions, I believe that the future car refrigerator will usher in a broader development prospects in the automotive industry.

In the outdoor activities such as hiking and mountaineering, the car refrigerator has become an ideal choice for outdoor sports people with its small shape and excellent cooling ability. It can meet the needs of such people for refrigerated food, drinks and other items. In addition, the on-board refrigerator is not affected by extreme temperatures, can adapt to changing climatic conditions, and can be used to store emergency medicine, electronic equipment and other temperature-sensitive materials, thus ensuring the safety and efficiency of outdoor adventure teams.

In the medical field, car refrigerators are widely used. For example, many medical devices (such as diagnostic instruments, portable monitoring devices, and first aid equipment) need to be stored within a specific temperature range in order to guarantee performance. For biological samples (e.g., blood, tissue sections) and sensitive medicines (e.g., vaccines, insulin), proper refrigeration conditions are important. The car refrigerator can provide a reliable refrigeration solution to ensure stability and safety during transportation and use. In addition, in some door-to-door medical projects, the car refrigerator also plays an indispensable role. It provides the necessary temperature control for testing equipment and can also be used to store collected samples until they are safely transported to the laboratory.

It is certain that the application of semiconductor refrigeration technology in vehicle refrigerators has brought a new cold storage solution for automotive, outdoor, medical and other scenarios. At present, FerroTec Thermal power has a complete industrial chain of R&D, production and sales of vehicle refrigerators, and will invest more resources in technological innovation and product research and development of vehicle refrigerators in the future.