空調是現在的家庭必不可少的家電之一，幾乎每個家庭在買家電的時候，最先考慮的就是空調、冰箱、洗衣機，這幾樣東西幾乎是現在所有家庭中最為普遍的家電了。可是我們在購買空調的時候應該怎樣選擇呢？要買變頻的好還是定頻的好呢？大家可能都會有這個疑惑沒我們今天就來一起簡單的瞭解一下空調應該買那種？需要可以幫到大家。
定頻空調和變頻空調工作原理
定頻空調和變頻空調最大的區別，就在於他們的工作原理不同。定頻空調是根據空調設定的溫度，進行啟動和關閉的。由於它的輸出功率是一定的，所以當室內溫度達到設定溫度時，定頻空調就停止工作。當溫度上升之後，定頻空調則又開始運轉。而變頻空調是可以根據室內的溫度進行自動調節，當室內溫度超出設定溫度後，變頻空調就以低頻輸出功率，智慧控制，維持室內的溫度不變。
變頻空調真的省電嗎？
有些人不瞭解，就覺得定頻空調這種間歇性的工作效能，很容易會導致家裡人生病感冒。而且工作時噪音也很大，夜晚會影響到家人睡眠質量。因此都比較喜歡購買所謂節能、舒適的變頻空調。
但變頻空調真的省電嗎？其實都是忽悠人的。我們家裡使用變頻空調，只有在長時間開啟到了6個小時，並且持續開下去的情況下，變頻空調才會比定頻空調要省電在30％左右。但是我們一般家庭都達不到這個標準，很少人會在家長時間開啟空調。因此，變頻空調也並不像宣傳中說的那麼省錢。
還有痛心的一點就是，變頻空調購買時的價格就很貴，大概要比定頻空調的要貴1／3～1／4左右。而且變頻空調內部系統還很複雜，因此故障率還能高，很多人捨得買，但是維修費用卻是夠讓人心疼了，一次維修費甚至比多年省下來的電費還要多了，真是得不償失。
我推薦幾個方法讓空調更加省電
1、正確購買，合理使用
首選，購買空調要按需選購，無論是外觀還是產品的匹數配備上面，使用者只有購買正確了才不會在以後使用中覺得浪費或是匹數過小而過多耗電的情況出現，而這也是一種低碳、健康使用空調的表現。其次，要學會在日常生活中更加節能的使用空調。
2、房間密封程度要做好
如果使用空調的房間密封度不夠，那就需要改進房間的維護結構。對一些房間的門窗結構較差，縫隙較大的，可做一些應急性改善；最好使用厚質地的窗簾，窗簾布質厚點顏色深點，減少陽光輻射帶來的室溫影響，也可以以減少冷空氣散失，同時少開門窗可以減少房外熱量進入，利於省電。
3、提前十分鐘關空調
在出門前應該提前關空調，最好是離家前十分鐘即關冷氣，在這十分鐘之內室溫還足以使人感覺到涼爽，養成出門提前關空調的習慣，可以節省電能。
4、製冷時導風板出口向上
製冷時出風口向上，空氣溫度變低後，冷氣流容易往下走，這樣的製冷效果好，也能達到節能的效果。
5、外機要通風避陽光
空調外機要儘量選擇通風的地方和房間的陰面，夏日陽光灼熱很容易把外機曬熱，從而影響空調器自身散熱效果。如果條件不允許，室外機只能裝在向陽的一面，居民可以在外機頂部裝上遮陽篷。不具備條件的，應給空調室外機加蓋遮陽罩。
6、勿給外機穿“雨衣”
有人擔心空調外機因雨等氣候原因造成損壞和鏽蝕，就在空調外機上披上遮雨的材料。其實品牌空調室外機一般已有防水功能，給空調“穿雨衣”反而會影響散熱，增加電耗。
7、定期清掃散熱片和過濾網
外機散熱片上的灰塵過多會影響熱交換，可大幅度增加耗電量。一般使用3年以上最好請專業人士清掃一次。空調過濾網應該經常清洗，這樣可使空調送風通暢，降低能耗，同時對人體健康有利。否則網罩堵塞也會影響製冷效果。
8、睡眠功能也節電
在睡眠時，應該使用空調的睡眠功能，可起到20％的節電功效。
9、不要頻繁開關機
有人為了省電，經常將空調時開時關，其實空調頻繁開關最耗電，而且壓縮機很容易損耗。空調運行當中，如覺得太涼，無須關閉，只要將設定溫度調高即可。“通風”開關不能處於常開狀態，否則將增加耗電量。少開門窗可以減少房外熱量進入，利於省電。
總結
Air conditioning is one of the essential household appliances in today's families. When almost every family buys household appliances, the first thing to consider is air conditioning, refrigerator and washing machine. These things are almost the most common household appliances in all families now. But when we buy air conditioning, how should we choose? Do you want to buy frequency conversion or fixed frequency? You may have this doubt. Today, let's have a simple understanding of what kind of air conditioner we should buy? Need can help you.
Working principle of fixed frequency air conditioner and variable frequency air conditioner
The biggest difference between constant frequency air conditioning and variable frequency air conditioning lies in their different working principles. The constant frequency air conditioner is started and shut down according to the temperature set by the air conditioner. Because its output power is certain, so when the indoor temperature reaches the set temperature, the constant frequency air conditioner will stop working. When the temperature rises, the constant frequency air conditioner starts to operate again. The frequency conversion air conditioner can automatically adjust according to the indoor temperature. When the indoor temperature exceeds the set temperature, the frequency conversion air conditioner will output power at low frequency, intelligent control, and maintain the indoor temperature unchanged.
Is inverter air conditioning really energy saving?
Some people do not understand, feel that constant frequency air conditioning intermittent performance, it is easy to lead to a cold at home. And work noise is also very big, night will affect the quality of family sleep. Therefore, they prefer to buy the so-called energy-saving and comfortable inverter air conditioner.
But is inverter air conditioning really energy saving? In fact, it's all deceiving. We use frequency conversion air conditioning in our home. Only when it is turned on for 6 hours for a long time and continues to turn on, the power consumption of frequency conversion air conditioning will be about 30% less than that of constant frequency air conditioning. But most of our families can't meet this standard. Few people turn on the air conditioner during their parents' time. Therefore, variable frequency air conditioning is not as cheap as the publicity.
Another sad point is that the price of variable frequency air conditioner is very expensive, about 1 / 3 to 1 / 4 higher than that of constant frequency air conditioner. Moreover, the internal system of variable frequency air conditioning is very complex, so the failure rate is still high. Many people are willing to buy it, but the maintenance cost is heartbreaking. The maintenance cost is even more than the electricity cost saved for many years. It's really not worth the loss.
Let me recommend several ways to save electricity
1. Correct purchase and reasonable use
First of all, the purchase of air conditioning should be based on demand. Whether it is the appearance or the number of pieces of the product, only when the purchase is correct, the user will not feel waste in the future use or the number of pieces is too small and consume too much power. This is also a kind of low-carbon and healthy use of air conditioning. Secondly, we should learn to use air conditioning more energy-saving in our daily life.
2. The room should be well sealed
If the air-conditioned room is not airtight enough, the maintenance structure of the room needs to be improved. For some rooms with poor door and window structure and large gap, some should be improved; it is better to use thick curtains with thick cloth and dark color to reduce the impact of room temperature caused by sunlight radiation, and reduce the loss of cold air. At the same time, opening fewer doors and windows can reduce the heat input outside the room and save electricity.
3. Turn off the air conditioner ten minutes in advance
Before going out, you should turn off the air conditioner in advance. It's better to turn off the air conditioner 10 minutes before leaving home. In this 10 minutes, the room temperature is enough to make people feel cool. Form the habit of turning off the air conditioner in advance when going out, which can save electricity.
4. The outlet of air guide plate is upward during refrigeration
When refrigeration, the air outlet is upward, and when the air temperature becomes lower, the cold air flow is easy to go down, so the refrigeration effect is good, and the effect of energy saving can also be achieved.
5. The outside machine should be ventilated to avoid sunlight
Air conditioner outside the machine to try to choose a ventilated place and the shady side of the room, the summer sun is hot, it is easy to heat the outside machine, thus affecting the cooling effect of the air conditioner itself. If conditions do not permit, the outdoor unit can only be installed on the sunny side, and residents can install awnings on the top of the outdoor unit. If the conditions are not met, the outdoor unit of air conditioner shall be covered with sunshade.
6. Don't wear "raincoat" on the outside machine
Some people worry that the external unit of the air conditioner will be damaged and rusted due to rain and other climatic reasons, so they put rain proof materials on the external unit of the air conditioner. As a matter of fact, outdoor units of brand air conditioners generally have waterproof function, so "wearing raincoat" for air conditioners will affect heat dissipation and increase power consumption.
7. Clean the radiator and filter screen regularly
Too much dust on the external heat sink will affect the heat exchange, which can greatly increase the power consumption. In general, it's better to ask a professional to clean it for more than 3 years. The filter screen of air conditioner should be cleaned frequently, which can make the air supply of air conditioner unobstructed, reduce energy consumption and benefit human health. Otherwise, the net cover blockage will also affect the refrigeration effect.
8. Sleep also saves electricity
In sleep, should use the sleep function of air conditioning, can play 20% of the power saving effect.
9. Don't turn on and off frequently
In order to save electricity, some people often turn the air conditioner on and off. In fact, the frequent switching of the air conditioner consumes the most electricity, and the compressor is easy to wear and tear. During the operation of the air conditioner, if you feel too cold, you don't need to turn it off, just raise the set temperature. The "ventilation" switch cannot be in the normally open state, otherwise the power consumption will be increased. Less open doors and windows can reduce the heat entering outside the house, which is conducive to saving electricity.
summary
Of course, frequency conversion air conditioning saves electricity, but it depends on the use of air conditioning in families. In fact, the state now stipulates that the production of high-energy electrical appliances is prohibited, so the technology is constantly improving. If the energy consumption is high, you can see the energy efficiency ratio on the label. If you want to save money,