The phrase “inverter motor” is often heard by those who are going to purchase, for example, a washing machine, air conditioning or refrigerator. It is believed that equipment with such a motor is almost the most advanced of all available models to date. But what is an inverter motor in technical installations, not everyone bothers to figure it out. Consider how it works and what are its advantages in the refrigerator.
What is an inverter?
This device is designed for speed control. So, in the case of a refrigerator, if it needs more cold, the inverter motor will increase the required speed. And when the command “enough” is received from the equipment, the rev counter also stops at a given mark. Previously, the refrigerator had to install as many as three compressors. But now one is enough. After all, the greatest load occurs when you turn on the equipment. And with multiple compressors, a higher frequency is required. But one inverter turns on smoothly, without sudden jumps and overloads. That is why the energy savings are obtained.
Any driver knows that starting his car “cold”, he reduces the engine resource. The same thing happens with the compressor. But the inverter motor, smoothly starting, accelerates to thousands of revolutions gradually. Thus, in addition to saving, the equipment does not wear out much longer.
disadvantages
In addition to advantages, technical devices with an inverter, like any others, certainly have disadvantages. The main one is high cost. Not everyone decides to fork out for this innovation, moreover, sometimes not completely trusting its real effectiveness.
Benefits
Continuing the analogy with a car, it is easy to understand that a car that will drive on a flat road, without even going to maximum speed, will reach the finish line faster than the one that moves off-road, but at the limit. The first option seems to be advantageous not only in terms of results, but also in fuel (low power “eat” less gasoline), as well as in spare parts (in the second case, you may need to replace something at the finish).
The same situation is with refrigeration equipment. The digital inverter motor has the following advantages:
- significantly saved electrical energy;
- the motor resource is significantly increased due to the minimum load, repairs in this case will be needed much less often;
- noise during operation is also significantly reduced due to low revs;
- Based on technical specifications, the manufacturer, as a rule, extends the warranty period for equipment.
There is no limit to perfection
The inverter motor is not today the most advanced in household appliances. Known so-called linear unit, which can also be attributed to the piston. However, there is no engine or crankshaft in it. The piston is located in an electric magnetic coil and begins to move when current flows. At the same time, much less electric energy is required, the efficiency is significantly increased, and refrigeration equipment is even quieter than with an inverter unit.
An inverter is useful for this type of technique, since maintaining a constant temperature without working at the limit is a really important indicator. In another technique, for example, if an inverter motor is installed in a washing machine, this may not be as significant as for a refrigerator.