What's the difference between old and new refrigerators?

Intuitively, the old model only has two doors, and some refrigerators have three doors.

But new models, such as the third-generation refrigerators, are face to face or open more doors.

Second, internally.

Almost all the old refrigerators are directly cooled, and the refrigeration of the refrigerator is realized by the evaporator embedded in it. Most new refrigerators are cooled by air cooling. The advantage of air cooling is that it doesn't frost, and it doesn't need to defrost regularly like a direct-cooling refrigerator.

Third, the compressor.

The compressor energy efficiency of old refrigerators is generally between 1. 1- 1.6, which belongs to low energy efficiency products, while most new refrigerators can reach 1.6 or above, and some high-end products can even reach 1.9 or above. In addition, most of the old refrigerators use fixed frequency compressors, and most of the new refrigerators use frequency conversion products. Compared with the former, frequency conversion will save more electricity.

Extended data:

Matters needing attention in refrigerator maintenance

The refrigerator should be cleaned regularly (at least twice a year). First cut off the power supply, clean the refrigerator, dip a soft cloth in water or tableware detergent, gently scrub it, and then wipe it with water detergent.

In order to prevent the internal and external coatings and plastic parts from being damaged, please do not use washing powder, decontamination powder, alkaline detergent, boiling water, oil and brushes to clean the refrigerator. When the scale is attached, it should be removed with water or detergent.

Application of wiping cloth on the surface of electrical parts. Plug in the power plug after cleaning, and check whether the thermostat is set incorrectly and placed in the refrigerator for a long time. Unplug the power plug and clean the water tank until the water tank is completely dry and the door is closed.