Everyone is accustomed to the fact that the operation of the main kitchen unit is accompanied by rumbling sounds and a slight startle. And few people think that these facts of "life" indicate the type of compressor of the refrigerator. What is the best refrigeration unit is just determined by this structural unit. Today, in addition to the traditional linear version, inverter is often found.

Let's figure out what these devices are, how they differ from each other, their pros and cons and try to find out which compressor is better in the refrigerator.

Why is he rumbling

The sound accompaniment of refrigerators, which was earlier, can not be compared with the current one. It has become quieter. This is due to the fact that earlier refrigerators used compressors, the operation of which was carried out by a crank system under the action of torque. In the future, and even now in some brands, the electromagnetic field created by the motor windings ensures the translational movement of the compressor pistons in one plane. Hence the name of the unit - a linear compressor.

In order not to go into technical jungle anymore, let us get acquainted with the elementary principle of operation of this unit, which consists in the following:

  1. Throughout the process, the relay sensor constantly analyzes the existing temperature.
  2. If the temperature rises, the sensor gives a signal (a click is heard), the compressor is connected to operation (the refrigerator starts) and with all its power, with full load and maximum speed, it starts to cool the chamber.
  3. During compressor operation, the sensor continues to compare temperatures.
  4. When the air in the chamber is sufficiently cooled to the desired value, the compressor will turn off, the refrigerator will start, the relay will click. But the sensor will still analyze the temperature.

This cycle continues until the end of the operation of the refrigerator.

girl and fridgeRating of the quietest models of refrigerators

This way of relay operation is called stepwise. Needless to say, these constant switching on and off of the linear compressor unit are accompanied by its strong heating. This negatively affects the entire refrigeration system and increases the load on the internal power grid. The maximum speed of the compressor during operation is the reason for the large consumption of electricity.

linear compressor

But it is not all that bad. Linear refrigerators have their own advantages:

  • It is characterized by high environmental cleanliness, since safe coolants are used during operation. Because these products do not cause damage to the atmosphere, they were awarded the title of "green";
  • the energy efficiency level of this unit is considered highly economical, therefore it has earned the energy class “A ++”;
  • vibration and noise are significantly reduced when turning on and off, that is, a system of "silent start" and "silent stop" is provided.

Silent and high quality

The inverter compressor of the refrigerator works quietly and measuredly without a peak increase power and load, and therefore, without a systematic on and off. This is facilitated by the inverter system, which allows the consumed alternating current from the network to be converted to direct. Next, there is a conversion of direct current into alternating current with a change in its parameters: voltage, current, frequency.

Chamber cooling is supported not by turning the compressor on and off, but by reducing its speed.

This explains the following advantages refrigerators with inverter compressor:

  1. Refrigeration units of this type are characterized by low energy consumptionTherefore, they are awarded the highest energy saving class. It is 20% more economical than other compressors.The reason for this saving is that it uses maximum power only when it is turned on, and then the speed decreases, providing the necessary temperature in the chamber.
  2. As follows from the design and operational features of the inverter compressor, it turns on once and without sound accompaniment of the temperature sensor.
  3. The temperature that the user sets is constantly kept at one point.
  4. The long service life is explained by the absence of amplitude surges in the operation, which lead to wear of the mechanism. A ten-year warranty period confirms the highest quality of the product and guarantees its long-term operation.

But “in every barrel with honey” there will always be its drawbacks:

  • in this high-quality technique, its high price is a minus. Of course, in the future, energy savings will block the cost of a refrigerator with an inverter compressor, but this takes time;
  • failures in power supply networks with a significant jump can cause a failure of this type of refrigerator. Some manufacturers Protect their products from power surges by installing a barrier or voltage stabilizer. When there is a threat to stable operation, the unit is put into “standby mode”, and after the voltage is normalized, the standard flow of the process resumes.
fishing frostThe best refrigerators in quality and reliability in 2019

Comparison Results

Inverter compressor refrigerators are confidently entering our lives. But not everyone can put up with the increased cost for silent operation with the same quality of freezing with a linear unit. And the environmental friendliness, durability and energy efficiency of the latter are not less than that of inverter models. The owners of the good old and familiar units are not annoyed in the kitchen by the rumbling and trembling miracle of technology.