The difference between an air cooled refrigerator and a direct cooled refrigerator

The differences between air-cooled refrigerators and direct-cooled refrigerators are as follows:1Refrigerated air-cooled refrigerators use automatic air supply technology, which can quickly refrigerate food with good refrigeration effect; Direct cooling refrigerators use convection technology and do not refrige as fast as air-cooled refrigerators.

2.Noises. Air-cooled refrigerators are more noisy than direct-cooled refrigerators, and more noise may be generated during use.

If you like quiet friends, you should consider whether it is suitable to choose an air-cooled refrigerator. 3.Energy conservation.

Frosting characteristicsThe inside of the air-cooled refrigerator is not easy to frost, and the food can be kept dry independently and will not stick together; Straight refrigerators tend to feel damp, refrigerators tend to frost, and food sticks to each other. Air-cooled refrigerator principle: The principle of air-cooled refrigerator is to use air for refrigeration.

When high-temperature air flows through the built-in evaporator (separated from the inner wall of the refrigerator), the air temperature will decrease due to the high air temperature and the low temperature of the evaporator. At the same time, cold air is blown into the refrigerator. Air-cooled refrigerators are used to reduce the temperature of the refrigerator through this constant cycle.

But there is always water vapor in the air, which condenses when it is cold, so as long as there is heat exchange in the refrigerator, frost will form. Air-cooled refrigerators are not frost-free, but frost condenses on the evaporator. Because it is inside the refrigerator, we can't see it directly when we open the refrigerator door, so it is called frost-free.

The differences between an air-cooled refrigerator and a direct-cooled refrigerator are as follows:

1. Refrigeration.

The air-cooled refrigerator adopts automatic air supply technology, which can quickly refrigerate food and has a good refrigeration effect; Direct cooling refrigerators use convection technology and do not refrige as fast as air-cooled refrigerators.

2. Noise.

Air-cooled refrigerators are louder than direct-cooled refrigerators, and may produce more noise during use.

3. Energy saving.

Air-cooled refrigerators can consume more electricity, and air-cooled refrigerators consume significantly more electricity than direct-cooled refrigerators, while direct-cooled refrigerators are more energy-efficient.

4. Frosting.

The inside of the air-cooled refrigerator is not easy to frost, and the food can be kept dry independently and will not stick together; Direct cooling refrigerators are prone to a wet feeling, the refrigerator is prone to frost, and food adheres to each other.

Air-cooled refrigerator principle:

The principle of an air-cooled refrigerator is to use air for refrigeration, with high-temperature air flowing through a built-in evaporator.

separated from the inner wall of the refrigerator), the air temperature is low due to the high air temperature and the low temperature of the evaporator, and the heat exchange between the two directly occurs, and the temperature of the air decreases. At the same time, the cold air is blown into the refrigerator. Air-cooled refrigerators are used in this continuous cycle to reduce the temperature of the refrigerator.

However, there is always water vapor in the air.

Water vapor condenses when cold, so as long as there is heat exchange in the refrigerator, frost will form. The air-cooled refrigerator is not frost-free, but the frost condenses on the top of the evaporator, because it is inside the refrigerator, we can't see it directly when we open the refrigerator door, so it is figuratively called frost-free.

First, the principle is different:

An air-cooled refrigerator is a type of cold air that can be generated through the built-in evaporator of the refrigerator, and the cold air circulates and flows through the fan, so that the cold air flows through the entire refrigerator, which ultimately achieves cooling because the presence of the fan is faster. The fridge is faster.

Straight-line refrigerators are connected directly to the cooling pipes of the refrigerator evaporator in the refrigerator and refrigeration chamber. When the evaporator is sucked in, the air closer to the cooling pipe cools faster, forming natural air inside the refrigerator. Convection, lower the temperature.

Second, the advantages are different:

The advantage of the direct cooling refrigerator is that the failure rate is low, because of its simple structure, in addition, the direct refrigerator naturally converges, the humidity in the air is large, the moisture of the food can be better preserved, it is not easy to lose humidity, and it is more economical and power-saving.

The biggest advantage of an air-cooled refrigerator is automatic defrosting, the high-quality uniformity is relatively good, the humidity is relatively small, the food is relatively dry, and the smell is relatively fresh, but the air-cooled refrigerator is the disadvantage of the refrigerator, and the power consumption is greater.

Direct cooling refrigerator:

The evaporator of the refrigerator freezer adopts a composite three-dimensional structure of multi-layer heat exchanger sheets, and fixes the set fins on the outside of the S-type refrigeration coil wall to increase the refrigeration capacity of the two high-temperature areas at the top and the bottom of the freezer. The freezer is divided into a variable temperature chamber according to 1:1, and the refrigerant circuit is switched by a temperature sensor to control the bistable solenoid valve, and the variable temperature chamber is used as frozen, soft frozen, and refrigerated, or it can be closed.

What is the difference between a direct-cooled and air-cooled refrigerator? I understand the analysis of pedestrians, and I am glad that my family did not buy it wrong.

Both have their own advantages and disadvantages, and air cooling does not mean that adding a fan is enough. The real difference between the two is the evaporator.

The general direct cooling type adopts a flat plate type (the freezer adopts a serpentine tube), because it is a natural convection, so there is no noise, and there will be no fan energy consumption, and the efficiency is relatively low. Siemens adds a fan in the refrigerator room to enhance the flow and distribute the temperature evenly, but because its evaporator is still flat-plate, it is not considered air-cooled.

Air-cooled small refrigerators are rare, and their evaporators use forced convection, so the volume required can be much smaller, the food cools much faster, and the noise and energy consumption are slightly higher, which is not a major problem. The consequent drying of food is a real nuisance. The humidity content of the air coming out of the evaporator is very low, and the food is immediately deprived of a lot of moisture.

Therefore, this type of refrigerator is not suitable for storing foods such as vegetables and fruits, and fish and meat should also be sealed and stored (the taste of dehydrated food has a great impact).So if your refrigerator is not used to make popsicles, and it is not full of meat like foreigners, it is better to use direct cold.

And defrosting in air-cooled refrigerators is more cumbersome, although defrosting is generally less necessary. But if one day you forget to close the door (which I do a lot), it's miserable. Its evaporator is inside the refrigerator, which makes it difficult for hot air to reach and can take up to half a day.

Also, having water flowing out during defrosting is not a problem with the refrigerator. Usually the refrigerator is constantly producing condensation, and the current design is to direct the water to a box on the compressor, and use the compressor to generate heat to evaporate the water when it works, so that you don't have to pour the water regularly. And when defrosting, the water will flow out if it does not evaporate.

The direct cooling refrigerator should be defrosted when the frost reaches 5mm, otherwise the freezing capacity will be affected, and the general situation should be defrosted once in spring and autumn. Defrosting is very convenient, there is a defrosting switch to vacate the freezer, press the switch to press it, the frost will automatically resume normal refrigeration, there is no defrosting switch as long as the items in the freezer are temporarily put in the refrigerator, and then adjust the thermostat to 0, open the door of the freezer, the frost will melt quickly, and then dry the water in the freezer, and the thermostat can be restored to its original position.

Refrigerator choice direct cooling or air cooling: direct cooling is suitable for small-capacity refrigerators, it has the advantages of low manufacturing cost, good fresh-keeping effect and low power consumption. The air-cooled type is suitable for large-capacity refrigerators, it does not need to be defrosted, it is clean and refreshing, the refrigeration is uniform, and the food will not freeze together, which greatly reduces the phenomenon of cross-flavor.

The air-cooled refrigerator refrigerates quickly and does not require manual defrosting, but it consumes more electricity and has a higher cost, and the fruits and vegetables in the refrigerator are easy to be air-dried; The direct cooling refrigerator is slower to refrigerate, but it is more energy-efficient and requires manual defrosting, which is more troublesome.

Generally, there are two types of refrigeration in refrigerators.

Air cooling and straight cooling.

Straight cold frosted refrigerator.

It just needs to be defrosted manually.

Air-cooled is simply a frost-free refrigerator.

No manual defrosting is required.

But it doesn't mean there is no frost.

It is with automatic defrost.

It's just that you can't see it from the outside.

Air-cooled refrigerators consume a lot of electricity.

The noise is relatively loud.

Refrigeration is relatively fast.

Direct cooling refrigerators are slower to refrigerate.

Relatively silent. "Good Store 123" on household appliances!

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Direct cooling is also called frost refrigerator. The freezer is directly surrounded by an evaporator, or there is an evaporator in the freezer, and an evaporator is arranged in the upper part of the refrigerator, and the evaporator directly absorbs heat and cools down. This type of refrigerator has a relatively simple structure, low power consumption, and good freshness preservation effect, but it needs to be defrosted regularly in the freezer compartment of the refrigerator.

Air-cooled refrigerator. There is a small fan inside the refrigerator that forces the air flow in the box, so the temperature in the box is uniform, the cooling speed is fast, and it is easy to use. However, due to the large power consumption caused by the defrosting system, the manufacture of refrigerators is relatively complicated.

Which type of refrigerator is better, air-cooled refrigerator or direct-cooling refrigerator? Today is a long time to see.

Air-cooled refrigerators and direct-cooled refrigerators are two different types of refrigeration.

1.The refrigeration is different.

The air-cooled refrigerator adopts air-cooled refrigeration technology, and the cold air is evenly blown into the refrigerator by the fan through the dismantling and respect, so that the temperature of the entire refrigerator is uniform. Direct cooling refrigerators, on the other hand, use direct-cooled refrigeration technology, which reduces the temperature inside the refrigerator through the refrigeration cycle of the condenser and evaporator.

2.The refrigeration effect is different.

Because air-cooled refrigerators use fan circulation refrigeration, the cooling effect is more uniform, and the temperature inside the refrigerator can be lowered more quickly. Whereas, the cooling effect of a direct cooling refrigerator is comparatively slower and takes a longer time to reach the ideal temperature.

3.The energy consumption is different.

Because air-cooled refrigerators use fan-circulating cooling, they are more efficient and can reduce the temperature inside the refrigerator more quickly, thus saving energy. Whereas, the cooling efficiency of direct cooling refrigerators is relatively low, and it takes a long time to reach the ideal temperature, so the energy consumption is higher.

4.Maintenance is different.

Since air-cooled refrigerators use fan circulation refrigeration, their internal structure is complex and requires more maintenance. The internal structure of the direct cooling refrigerator is relatively simple, and the maintenance is relatively simple.

To sum up, air-cooled refrigerators and direct-cooled refrigerators have their own advantages and disadvantages, and consumers should choose according to their own needs and actual conditions when purchasing.

<>1. The volume of refrigeration is different: the volume of air cooling can talk about Zhaobo's effective refrigeration is more than 300 liters, while the volume of direct cooling can effectively produce Xiangliang is less than 300 liters. 2. The refrigeration balance is different

The indoor temperature of the air-cooled refrigerator is relatively balanced; The refrigeration of the direct cooling refrigerator is uneven. 3. Different cooling speeds: air-cooled refrigerators have fast cooling speed and good temperature balance, while direct cooling refrigerators have relatively low cooling speeds, so the temperature balance is relatively poor.

First, the volume of refrigeration is different.

The volume of air cooling can be effectively refrigerated in more than 300 liters, while the volume of direct cooling can be effectively refrigerated in less than 300 liters.

Second, the refrigeration balance is different.

Because the Fengchai quiet cooling refrigerator is a fan to supply air, the indoor temperature of the refrigerator is relatively balanced, the temperature will not change greatly, and the refrigeration effect is also excellent, while the direct cooling refrigerator is powered refrigeration, so there is an unbalanced refrigeration.

Third, the cooling rate is different.

Air-cooled refrigerators have fast cooling speed and good temperature uniformity due to the forced circulation of cold air, while direct cooling refrigerators rely on natural convection, so the temperature balance is relatively poor, and the cooling rate is relatively low.

The difference between an air-cooled refrigerator and a direct-cooled refrigerator

1. Difference in refrigeration structure: the air-cooled refrigerator is added with a fan, the evaporator is hidden, and the cold air is blown to the refrigerator room through the fan, and the structure is more complex; The structure of the direct cooling refrigerator is to directly expose the evaporator to the box, which is more energy-saving and relatively cheaper;

2. Difference in refrigeration volume: the volume of air-cooled effective refrigeration is more than 300 liters; The effective refrigeration volume of direct cooling is less than 300 liters, and the refrigeration space is limited due to the technical obstacles in the distribution of air conditioning.

3. Difference in refrigeration balance: because the air-cooled refrigerator is supplied by a fan, the indoor temperature of the refrigerator is relatively balanced, the temperature will not change greatly, and the refrigeration effect is also excellent; The direct cooling refrigerator is powered refrigeration, so there is an unbalanced refrigeration;

4. Difference in cooling speed: air-cooled refrigerator has fast cooling speed and good temperature balance due to the forced circulation of cold air; Direct cooling refrigerators, on the other hand, rely on natural convection, so the temperature balance is relatively poor, and the cooling rate is relatively slow.

Refrigerator Purchase:

1. Look at the size.

Studies have shown that the volume of the refrigerator used by each person is about 70L 80L, and generally speaking, 210L and 240L are enough for a family of three to buy a refrigerator. If the refrigerator is too large, the food will not be updated in time, which is not good for your health. This knowledge can be simply referred to when purchasing.

2. Look at the function.

Photosynthetic preservation, air-cooled frost-free, variable temperature, ion sterilization, eco energy saving, soft freezing, frequency conversion ......New refrigerators are constantly being launched, and these new refrigerators are being added with more and more functions. However, for ordinary consumers, it is necessary to pay attention to whether these functions are practical, and most of the needs of ordinary families for refrigerators only stay at the most basic practical function - freshness, without having to spend money to buy refrigerators with complicated designs.

3. Look at energy consumption.

Refrigerators are large consumers of electricity, and there will be a fixed monthly electricity bill, so most people will pay attention to this when buying. What do you think about this? Generally, we look at the parameters, how many degrees of electricity is consumed per day, and the daily power consumption 24-hour power consumption will be indicated on the introduction of the refrigerator.

If this parameter exceeds 1, it means that the refrigerator uses more than 1 degree of electricity every day, so be careful about the electricity bill. In addition, the energy consumption level is also a reference indicator. Level 1 is the most energy-efficient.

4. Look at the material.

What ordinary people are most likely to ignore when buying refrigerators is the insulation layer and insulation materials of refrigerators, what we don't know is that this has a direct connection with the quality of refrigerator freezing and preservation, consumers will find that the refrigerator insulation layer is thick and thin, some refrigerator insulation layer is exaggerated, and some insulation layer is thin and scary. Can we say that a thick insulation effect must be good, and a thin effect must be bad? Not necessarily, mainly depends on the foam layer material and process.