How to understand the performance of a small refrigerator?

We need to understand the performance of a small refrigerator, and we also need to understand it from three aspects: refrigeration method, fixed frequency/frequency conversion, and circulation method.

1. The cooling method is divided into three methods: direct cooling, air cooling, and mixing. The advantages and disadvantages are described in the following figure. The best of the three cooling methods is mixed, followed by air cooling, and then direct cooling. Of course, the price is also mixed > air cooling > direct cooling.

2. Fixed frequency/frequency conversion:

Fixed frequency: The speed of the compressor remains unchanged, and it will automatically stop when it reaches the specified temperature. Similar to an air conditioner, the compressor automatically restarts when the temperature rises.

Frequency conversion: The cooling capacity of the refrigerator is controlled by the compressor automatically adjusting the speed, so the temperature control of the frequency conversion refrigerator is accurate and balanced, but the price of the small refrigerator is generally more expensive than that of the fixed frequency.

3. Circulation method

Single cycle: The freezer compartment is controlled by the mini car refrigerators compartment, so as long as the difference between the refrigerator room temperature is too large, the compressor will automatically restart, and the freezer compartment is forced to cool. The air-conditioning has to go through a cycle of refrigeration and freezing. If the refrigerator stores something with a big smell, it is easy to be smelly.

Double circulation: the refrigerator and freezer each use their own independent refrigeration system, the freezer and the freezer do not interfere with each other, and there is no smell. This dual-cycle refrigerator saves electricity, has low noise, accurate temperature control, and has stronger refrigeration capacity in the freezer.