How much do you know about refrigerators?

2021-09-16

How much do you know about refrigerator? Air cooling and direct cooling have their own advantages and disadvantages. The editor here is just a list of the advantages and disadvantages of air cooling and direct cooling for your reference. When choosing a refrigerator, you must combine your own situation and choose the one that suits you.

The demarcation point between 1. air cooling and direct cooling is about 300 liters, and large-volume multi-room air cooling has advantages.

The 2. has large volume and many compartments, and air cooling has advantages in cold distribution. If the use of direct cooling will have technical obstacles, it is not easy to achieve. The three direct cooling rooms are basically at the top. If you want to make more rooms, you will sacrifice some performance. Therefore, to see some of the large volume of multi-room (or even drawer doors) of the direct cooling refrigerator on the market, do not believe it. This product is not uncommon on the market, more concentrated in the small brand of products, the main sales of three or four markets. Some big cities around and home appliance wholesale market can also be seen.

3. air-cooled refrigerators have more fan air supply, so the indoor temperature of the refrigerator is relatively average, there is no great temperature change, and the cooling effect is naturally excellent. However, considering the function of the fan and the complex circuit design, the air-cooled refrigerator is in Energy consumption and noise are much higher than direct-cooled refrigerators.

4. direct-cooling type does not produce additional noise and power consumption because there is no electric fan, and it will not cause drying on the food surface due to blowing.

5. air cooling is forced to circulate cold air, so the cooling speed is fast and the temperature balance is good. This is its inherent advantage, and direct cooling is incomparable. The direct cooling due to natural convection, so the temperature balance is relatively poor, the cooling rate is relatively low.

6. to the inherent defrosting cycle of air cooling, fans and multiple internal compensation heaters, the power consumption and noise are higher than those of direct cooling refrigerators. Therefore, air cooling certainly has no advantages in these two items under similar circumstances. This is clearly understood by looking at the performance and energy consumption grade standards of national and other refrigerators. Therefore, it is boasted that air cooling has lower energy consumption and lower noise than direct cooling, but it is not compared under the same conditions.

The manual defrosting of 7. direct cooling is really disgusting. The so-called micro-frost design is just to use the whole drawer for freezing, reducing the air flow in the door opening box to reduce frosting. Even so, defrosting is usually required for half a year. If the number of doors opened is very small, it can be extended, otherwise it can be shortened. If the door seal is not good or aging, frost will also become serious. With the extension of the use of time, the number of defrosting will increase.

8. air cooling Due to the use of forced air circulation, odors will move in all rooms. Dual-system air-cooled refrigerators have begun to popularize, separating freezing and refrigeration, and the situation is better.

9. air-cooled refrigerators constantly bring the moisture in the box to the evaporator, and then flow away when defrosting, bringing dry consumption in the box, which is not conducive to preservation, which is also the inherent disadvantage of air-cooled. Although there are also some so-called preservation technologies, they are only in a small area (such as a relatively sealed space), which does not allow cold air to enter and only flows through the surroundings. The space is actually close to natural convection, but it is only the direct cooling of a small space.

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