Cold chain vehicle logistics generally refers to the systematic engineering of maintaining refrigerated and frozen food in a specified low-temperature environment at various stages of production, storage, transportation, sales, and consumption to ensure food quality and reduce food losses. It was established with the advancement of science and technology and the development of refrigeration technology. It is a low-temperature logistics process based on refrigeration technology, with refrigeration units using refrigeration technology as a means. It requires other equipment and attention to transportation process and time control. Transportation is another form of logistics, in which logistics costs account for a very high proportion of costs.

（1） Application scope of cold chain logistics

1. Primary agricultural products: vegetables, fruits, meat, poultry, eggs, aquatic products, flower products.

2. Processed foods: frozen foods, poultry, meat, seafood, packaged cooked foods, ice cream and dairy products, fast food ingredients.

3. Other products: pharmaceuticals.

Due to the fact that the food cold chain is a supply chain system with the core requirements of ensuring the quality of perishable food and maintaining a low-temperature environment, it has higher requirements and complexity than general ambient temperature logistics systems, as well as much higher construction investment. A massive system engineering project. Due to the timeliness requirements of perishable foods, the organization and coordination of various links in the cold chain are high. The operation of the food cold chain is always related to energy consumption costs, and effective control of operating costs is closely related to the development of the cold chain.

（2） Precautions for Cold Chain Logistics

In cold chain logistics transportation and distribution, there are various vehicle models for you to choose from: ice insulated trucks, mechanical refrigerated trucks, gondolas, and ice transportation. For these three cold chain transportation methods, you can choose the model and method you need based on the nature of the transported goods to avoid inconvenience and unnecessary losses.

2. As it is a cold chain logistics transportation mode, there must be a refrigeration system inside the vehicle. The temperature suitable for storing the transported goods should be adjusted according to the different items being transported. This can not only achieve the effect of transportation preservation, but also prevent trouble caused by temperature control.

When choosing cold chain logistics transportation for drugs, it is necessary to inform the logistics personnel to maintain the temperature inside the cold chain carriage between 2 degrees Celsius and 8 degrees Celsius. Do not use the cargo box as a cooler instead of a very cold or mild temperature.

4. For fresh food that needs to be kept within 1 ℃ of its freezing point or damage point during transportation, refrigerated containers should be pre cooled before transporting these fresh foods, and cold air channels should be quickly installed and stored properly. Fresh food is better. A box motor should be used to keep the refrigeration system of the refrigerated cargo box running continuously to avoid temperature fluctuations.

The demand for popsicles and ice cream increases during the hot summer season. Why do ice cream snow need to be refrigerated for transportation in refrigerated trucks with a temperature of -18 degrees Celsius? Because the cargo box of the refrigerated truck needs to be strictly sealed to reduce heat exchange with the outside world, while also ensuring that the temperature inside the refrigerated cargo box is always kept at a low level.

When transporting liquid products, choose refrigerated containers with strong insulation properties, which can maintain a constant temperature and block external high temperatures, preventing the liquid from deteriorating and evaporating.