According to whether there is a refrigeration device, it is divided into refrigerated trucks and insulated trucks. A car equipped with heat insulation and refrigeration equipment is called a refrigerated truck. A car equipped with an insulated carriage without any cooling or heating device is called an insulated car.

In China, users and vehicle management departments of refrigerated trucks and insulated trucks are used to calling them refrigerated trucks. Foreign countries are divided into cold cars, refrigerated cars and frozen cars. The cold car is an insulated car; The refrigerated truck, also known as the high-temperature refrigerated truck, is suitable for transporting fresh food with the refrigerated temperature of 0- 12℃; The refrigerated truck, also known as the low-temperature refrigerated truck, is suitable for transporting frozen food with the refrigerated temperature below-15℃. European and American countries are used to juxtaposing insulated trucks, mechanical refrigerated trucks and ordinary refrigerated trucks into three categories. The New International Refrigeration Dictionary classifies refrigerated trucks into insulated trucks, refrigerated trucks and mechanical refrigerated trucks.

2. According to the refrigeration mode of the refrigeration device.

According to the refrigeration mode of refrigeration equipment, refrigerated trucks can be divided into mechanical refrigerated trucks, liquid nitrogen refrigerated trucks, cold plate refrigerated trucks, dry ice refrigerated trucks and water (salt) ice-cold refrigerated trucks, and insulated trucks can be regarded as refrigerated trucks without refrigeration equipment.

3, according to the function of special equipment points

According to the total heat transfer coefficient of refrigerated and insulated car compartments, it can be divided into reinforced insulation type and common insulation type.