In the twinkling of an eye, April is coming, the hot summer is coming soon, especially in the big cities, it is a melting pot, the sweltering weather and the city's excessive car exhaust emissions outside, outdoor activities like a sauna, sometimes walking through the air-conditioning The hot air blown out by the outdoor unit, the feeling is wonderful.
At this time, we need to buy some summer artifacts to resist the discomfort caused by the sudden increase in temperature, such as common refrigerators and air conditioners. However, in the process of purchasing products, we will find that the same type of refrigerator air conditioner has frequency conversion and fixed frequency for consumers to choose.
Then the question is coming. What exactly is frequency conversion and fixed frequency?
Inverter is actually changing the power supply frequency to adjust the load to reduce power consumption, reduce losses, and extend the life of the equipment.
The core of the frequency conversion technology is the frequency converter. Through the conversion of the power supply frequency, the automatic speed regulation of the motor is realized, and the frequency of the fixed grid of 50 Hz is changed to the frequency of change of 30-130 Hz.
At the same time, the power supply voltage adapts to the range of 142-270V, which solves the problem that the electrical equipment voltage is unstable due to the instability of the grid voltage. The technology for realizing AC power control by changing the AC frequency is called frequency conversion technology.
For example, inverter air conditioners add a frequency converter to the structure of a conventional air conditioner. The compressor is the heart of the air conditioner, and its speed directly affects the efficiency of the air conditioner. The inverter is the control system used to control and adjust the speed of the compressor, so that it is always in the optimal speed state, thus improving the energy efficiency ratio (rather than the conventional one). Air conditioning energy saving is at least 30%).
Its basic structure and cooling principle are exactly the same as ordinary air conditioners. The main unit of the inverter air conditioner is automatically steplessly variable, which can automatically provide the required amount of cold (heat) according to the room condition; when the indoor temperature reaches the desired value, the air conditioner main unit operates at a constant speed that can accurately maintain this temperature. Achieve "no downtime" to ensure the stability of the ambient temperature.
The fixed frequency electric appliance is that the rotation speed of the compressor is fixed. After the set temperature is reached, the compressor stops running, and when the temperature rises to a certain value, the compressor restarts.
Simply speaking, after the temperature of the fixed frequency appliance reaches the set value, it enters the intermittent operation state: full speed operation, shutdown, full speed operation, shutdown... After the temperature of the inverter appliance reaches the set value, it enters the low speed operation state: unless the temperature is caused by the external cause Sudden rise, otherwise it will continue to run at low speed.
That is to say, the frequency conversion electric appliance replaces the high-power operation of the fixed-frequency electric appliance for a short time with a long-time low-power operation.
Their respective advantages and disadvantages:
1. Due to the adjustable characteristics of the frequency converter, it can better match the work with the motor, reduce the fearless energy consumption and reduce the power consumption.
2. The frequency converter is longer than the fixed frequency machine because the number of starts and stops is reduced.
3. By continuously adjusting the compressor speed, the frequency converter can make the temperature control inside the appliance more precise and stable. For example, the refrigerator will have a smaller temperature impact on the food and reduce the loss of food moisture. The accurate temperature control of the air conditioner will make the human body feel more comfortable. The fixed frequency will start and stop frequently, and the heat will suddenly become uncomfortable. .
4. The noise of the inverter will be lighter. The fixed frequency machine will make noise when the compressor starts and stops, but the frequency conversion does not.
5. The advantage of the fixed frequency machine is that the technology is mature, the purchase cost and the maintenance cost are low.
How to choose the refrigerator air conditioner that suits you?
The type of space in which the appliance is placed, such as households, should be considered for comfort and noise, especially in the bedroom and study space.
Also consider the working hours and frequency of use of the appliance. If you use it rarely, you can consider a direct frequency machine. Like the southern coastal city of Guangzhou, the hot climate will continue for a long time, so if the electrical appliances continue to work for a long time, it is better to choose inverter electrical appliances that are excellent in energy saving and noise control.
Both frequency conversion and fixed frequency, I personally prefer frequency conversion products. The use of the product is one of my most important considerations. I usually work in a noisy city, so I need a quieter living space at home, which is different from the noise-contaminated environment.
After all, the family is not just a space for one person. More precise temperature regulation can also help improve the quality of life. Moreover, the price difference between the current frequency converter and the fixed frequency machine is not particularly large. For the consumers to be within an acceptable range, the electrical appliance is a relatively stable furniture, and it takes a long time to upgrade.
In the brand purchase, I personally prefer the big brand of home appliances, such as Midea, Gree, Haier and other large factories, the technology is more stable than the small factory, there is comprehensive coverage, and easier to find maintenance points.
At the same time, as a part of human beings, I also want to contribute to energy conservation, choose greener products in case of demand, support green products with practical actions, promote better development of the industry, and benefit us. Earth.
The above is my own concept of consumption, specific to their own purchase or to consider their own actual situation, comprehensive evaluation for purchase.
In summer, what good summer artifacts are worth recommending?
Water mattress: the price is moderate, the cooling effect is very obvious. But it is cumbersome and not portable, and it may have an odor, which is very troublesome and requires frequent scrubbing.
Water-cooled fan: cheap, portable and versatile. But there is some noise.
Ice pack: cheap and portable.
Toilet water: Which is cool, but the taste is a bit heavy, and the cooling effect is great.
Water-filled cooling pillow: The cooling effect is good, but it is troublesome.
Cooling ice stick: The cooling effect is good, it can be used to relieve fever and cool down, but it is a one-time product, which will cause waste pollution.
In fact, there are a lot of summer artifacts, all kinds of different kinds, search for a few keywords in the "heatstroke artifact" on an e-commerce page, you will find countless product items, dazzling, only you did not expect, no you can not find, The advantages and disadvantages are also obvious.
At the time of purchase, you must pay attention to the product function introduction and use precautions, pay attention to safety during use, combine your own situation and use environment, and choose the right product to better spend the summer.
to sum up:
The high temperature in summer can be very distressing, but as long as you combine your own situation and the use environment, you can choose the right product. Pay attention to the product function introduction and precautions when purchasing. Pay attention to safety during use, and it will be well protected against high temperature. Reasonable purchase and use may even save you a small amount of electricity. Let the summer no longer be a torment, but the "happy to enjoy" this wave of damage~
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