Fig. 4

Refrigerated containers that can be placed on a semi-trailer. The refrigerated containers can ensure the constant temperature in the containers. At the same time, the insulation board is placed in the refrigerator car to cut off the area of different temperatures in the refrigerated containers. In this way, the refrigerated containers can be loaded with cold chain cargo or normal temperature cargo, so that three temperature regions can be divided in a refrigerated container. The insulation boards can be moved forward and backward, it can be pushed to the side of the container when it is not needed. There are two baffles inside the refrigerated container, which are used to separate the areas and have a temperature control device on the container. The position of the baffle can be adjusted with the size of the goods to avoid the problem that the large goods cannot be loaded