In the blink of an eye, in April, the hot summer season is coming. Especially in big cities, it is a melting pot. The hot weather and the city’s excessive exhaust emissions are outdoors. Outdoor activity is like a sauna, sometimes walking through air-conditioned The feeling of the hot air blown by the outdoor unit is wonderful. At this time, we need to buy some summer artifacts to resist the discomfort caused by the rapid increase in temperature, such as common refrigerators and air conditioners. During the process, we will find that the same model refrigerator air conditioner is available with frequency conversion and fixed frequency for consumers to choose.
Then the question is, what is the frequency conversion and fixed frequency?
In fact, the frequency conversion is to change the frequency of power supply, thereby adjusting the load, reducing power consumption, reducing losses, and extending the service life of the equipment. The core of the frequency conversion technology is the frequency converter, which realizes the automatic operation speed rate of the motor through conversion of the power supply frequency. Adjustment, changing the fixed grid frequency of 50Hz to the changing frequency of 30-130Hz. At the same time, it also enables the power supply voltage to adapt to the range of 142-270V, which solves the problem of influencing the electrical work due to the instability of the grid voltage. By changing the AC frequency Way to achieve AC control technology is called frequency conversion technology.
For example, the inverter air conditioner adds a frequency converter to the structure of the conventional air conditioner. The compressor is the heart of the air conditioner. The speed of the compressor directly affects the efficiency of the air conditioner. The inverter is a control system for controlling and adjusting the speed of the compressor. It is always in the best speed state, thereby improving the energy efficiency ratio (at least 30% than the conventional air-conditioning energy-saving). Its basic structure and cooling principle are the same as those of the ordinary air-conditioner. The host of the inverter air-conditioner is automatically continuously variable. According to the condition of the room, it can automatically provide the required amount of cold (heat); when the room temperature reaches the desired value, the air-conditioning host runs at a constant speed that can accurately maintain this temperature, achieving 'non-stop operation' and thus ensuring the stability of the ambient temperature. .
The fixed frequency appliance is the constant speed of the compressor. After reaching the set temperature, the compressor stops running. When the temperature rises to a certain level, the compressor restarts.
Simply put, after the constant frequency appliance temperature reaches the set value, it enters the intermittent operation state: full-speed operation, shutdown, full-speed operation, shutdown... After the inverter temperature reaches the set value, it enters the low-speed operation state: Unless the external cause temperature Sudden rise, otherwise it will keep running at low speed.
That is to say, the frequency conversion device replaces the high-power operation of the fixed-frequency device for a short period of time with a low-power operation for a relatively long time.
Their respective advantages and disadvantages:
· Due to the adjustable characteristics of frequency conversion, it can work better with the motor, reduce fearless energy consumption, and reduce power consumption.
·Frequency machine life will be longer due to the reduced start and stop times compared to fixed frequency machines.
·Frequency conversion machine can adjust the compressor speed continuously to make the temperature control in the electrical appliance more accurate and stable. For example, the refrigerator will have smaller impact on the food temperature and reduce food moisture loss; and the air conditioner temperature control will make the human body feel more comfortable , Frequent start and stop at fixed frequency, hot and cold, giving people a sense of uncomfortable frustration.
· 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.
· 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 your own refrigerator air conditioner?
The type of space the appliance is placed on, such as home use, should be considered when using comfort and noise, especially in the bedroom and study space.
Also consider the length of work and the frequency of use of the appliance. If it is seldom used, consider a direct-frequency machine. Like the southern coastal city of Guangzhou, the hot climate will last long, so if the appliance continues to work for a long time, choose to save energy and noise control The performance of frequency conversion appliances will be even better.
Both frequency conversion and fixed frequency, I personally prefer the frequency conversion products. The use of products is the most important point of my consideration. Usually the work is in a noisy city, so at home I need a quieter living space. , It is different from the external environment full of noise pollution. After all, family is not just a person's space. More accurate temperature regulation also helps to improve the quality of life. Moreover, the current price difference between variable frequency and fixed frequency machines is not particularly large. For the vast majority of consumers are acceptable, electrical appliances are relatively stable furniture, it took a long time to upgrade. Brand purchase, I personally prefer the big brand of home appliances, such as Midea, Gree, Haier and other manufacturers, Compared with small plants, technology is more profound and stable, with comprehensive protection coverage, and easier to find maintenance and maintenance points. At the same time as a human being, we also want to save energy for our own energy and choose under the condition of demand. More green and environmentally-friendly products, use practical actions to support green products, promote better development of the industry, and benefit the earth we live in. On my own concept of consumption, specific purchase or to combine their own actual situation to consider, a comprehensive assessment of purchase.
In summer, are there any good summer artifacts worth recommending?
Water Mattress: The price is moderate, the cooling effect is very obvious, but it is bulky and not portable, there may be odor, it is troublesome to need frequent scrubbing.
Water cooling fan: Cheap, portable, multi-functional. But there is a certain noise.
Ice packs: Cheap and portable.
2. Dew water: Apply what cool, but the taste is a bit heavy, the cooling effect is great.
Water-filled cooling pillow: Cooling effect is good, but use trouble.
Cooling ice paste: Cooling effect is good, can be used to ease the fever to cool down, but is a one-time product, it will cause waste of pollution.
In fact, there are many summer artifacts. There are a variety of different keywords. When you search for a number of keywords for the summer artifact on an e-commerce website, you will find numerous product items that are dazzling. Only you did not expect, and you cannot find them. Advantages and disadvantages are also obvious. At the time of purchase, you must pay attention to the introduction of product functions and precautions for use. Pay attention to safety in the process of use. Combine your own situation and use environment so that you can choose your own products to better survive summer heat.
Summary: The high temperatures in summer can be very distressing, but as long as you combine your own circumstances and the use of the environment, so as to choose the right product, pay attention to the introduction of product functions and precautions during the purchase, pay attention to safety during the use, you can very well Resist high temperatures, reasonable purchase and use may even help you save a small amount of electricity. Let the summer is no longer suffering, but 'happy to enjoy' this wave of damage ~