Refrigerated truck is usually formed by a chassis, a car body, and a refrigerating unit, and the refrigerating unit plays an absolutely dominant role in the vehicle. In general, refrigeration units used in refrigerated vehicles are divided into two categories: independent refrigeration units and non-independent refrigeration units.

How to choose a refrigerating unit that suits your actual transportation situation is crucial, which directly determines the cost and efficiency of the work. I believe that after you understand the following three points, you will know how to choose a refrigeration unit.

Definition

Independent refrigeration units: In general, independent refrigeration units are all one-piece construction but also have a modified split structure (this structure is generally hoisted on the girders of the car), which itself provides power and electrical energy to the refrigeration system. Engine and generator unit. Can work independently, regardless of the working state of the car engine.

Non-independent refrigerating unit: As the name implies, it is a refrigeration unit that cannot work independently. The unit itself does not have a power unit and must be driven by a car engine.

Characteristics

Independent refrigeration unit:

Advantages: The advantages of the independent refrigeration unit are stable and reliable, which is also the most needed for refrigerated trucks. Since the independent refrigeration unit has a separate source of power output, the refrigerator can still operate when the refrigerated vehicle is turned off or the engine fails in the refrigerated vehicle, thereby ensuring that the goods in the refrigerated compartment are not deteriorated.

Disadvantages: The disadvantages of independent refrigeration units are that they are expensive and the maintenance is more complicated than that of non-independent refrigeration units. Since an additional power system is more complex in terms of maintenance and maintenance, the independent refrigeration unit is more complex than the non-independent refrigeration unit, and the independent refrigeration unit is relatively more technically complicated and more expensive.

Non-independent refrigeration unit:

Advantages: The advantages of non-independent refrigeration units are that they are inexpensive, simple in structure and easy to maintain and maintain.

Disadvantages: The disadvantage of the non-independent refrigeration unit is that it relies too much on the power source of the refrigerated truck. When the refrigerated truck engine stops working, the non-independent refrigeration unit loses power support, the refrigeration system stops working, and if the car door is turned off, the door will be opened frequently. The temperature inside the car is increased due to the large loss of cold air in the car body, or the refrigerator will stop cooling when the car fails (engine failure), and the cargo in the car is easily damaged.

Application

Independent refrigeration unit: The independent unit is relatively higher in price, but the stability is better. It is mainly used on trucks and semi-trailers with a car length of more than 7 meters, which is suitable for long-distance transportation.

Non-independent refrigerating units: Non-independent units are more affordable, mainly used in vehicles with a car length of less than 7 meters, suitable for short-distance distribution between cities and districts.