Lead: As an essential household appliance in life, everyone is familiar with it. So how to choose a refrigerator suitable for your own home often puzzles many people. Here I will briefly introduce several aspects that need attention when choosing a refrigerator.

1. Refrigeration mode

There are generally three refrigeration modes of refrigerators:

1. Direct cooling mode: it can be seen that the drawers in the freezer are surrounded by rows of refrigeration pipes, that is, evaporators, or there is an evaporator in the freezer, and there is another evaporator on the upper part of the freezer, which directly absorbs heat to cool down. Direct cooling is the earliest refrigeration technology, and its advantages are simple structure, low cost, low power consumption, fast freezing speed, low noise and good preservation and moisturizing effect. Disadvantages are slow cooling in the refrigerator, uneven temperature in the refrigerator, and need to defrost the freezer regularly, which is suitable for dry northern and inland areas.

2. air-cooled: also known as indirect cooling or frost-free refrigerator. The refrigeration pipeline is hidden, and there is a small fan in the refrigerator to blow cold air into the freezing chamber and refrigerating chamber, forcing the air in the refrigerator to flow, so the temperature in the refrigerator is uniform, the cooling speed is fast, the refrigeration efficiency is high (similar to the principle of blowing hot water to cool quickly), and it is convenient to use. However, the manufacturing structure is relatively complex, the cost is relatively high, and the power consumption is high due to the defrosting system. At the same time, the fan in the box will make the refrigerator noisy, and the food is easy to dry and dehydrate. It is suitable for wet areas such as coastal areas and the Yangtze River, with high power consumption and small effective volume. More high-grade refrigerators adopt air-cooling technology, such as large refrigerators with doors over 411 liters.

3. air-cooled and direct-cooled hybrid: taking advantage of the advantages of the above two refrigeration methods, the freezer is designed with air cooling and the freezer is directly cooled. This saves the freezing room from frosting, saves the trouble of defrosting, and keeps the moisture of food in the refrigerating room to the greatest extent, so that fruits and vegetables are not easy to dry. The loudness of this kind of refrigerator is scientific, the technology is complex and the price is relatively high.

type of doors (capacity)

refrigerators can be divided into single-door refrigerators, double-door refrigerators, three-door refrigerators, opposite-door refrigerators and multi-door refrigerators according to the number of doors. Everyone should choose according to their own economic ability and personnel needs, and don't blindly choose oversized refrigerators.

Single-door refrigerator:

The refrigerator has only one door. Generally, it only has refrigeration function but no freezing function, so it can't make ice and keep ice cream for a long time. Some single-door refrigerators have a separate freezer with a capacity of 45-111 liters and a price of about 411-811 yuan. Suitable for people who are single or have little capacity demand.

Double-door refrigerator:

Double-door refrigerator is the largest refrigerator in the market, with the traditional design of upper and lower doors, and the freezer and freezer are separated. The capacity is generally around 85-281 liters, and the price gap is relatively large. There are refrigerators ranging from 811 yuan to 11,111 yuan. Suitable for a wide range of people, suitable for single aristocrats, families of two, three and four, with large capacity. Double-door refrigerators are even suitable for large families or families engaged in small catering businesses.

Three-door refrigerator:

Three-door refrigerator is a popular type of refrigerator at present, mainly because there is a -7℃ soft freezing room in the middle for storing meat, and the temperature can be between 3℃ and -7℃. The meat can not only ensure the loss of fresh nutrition, but also be easily cut, thus saving the trouble of thawing. The capacity is generally around 191-351 liters, and the price is slightly more expensive than that of a two-door refrigerator. The suitable crowd is relatively wide, and the general large family and small family can choose.

Opposite-door refrigerators:

Refrigerators are large in space and generally luxurious. Of course, the power consumption will be slightly higher than that of two-door and three-door refrigerators, and the functions and equipment of opposite-door refrigerators are relatively complete. The capacity is generally around 311-611 liters, and the price is relatively expensive, ranging from about 3 thousand to tens of thousands of yuan. Suitable crowd; Big family and small business house.

Multi-door refrigerator:

Multi-door refrigerator is luxurious. It has many functions, including four-door, five-door and six-door refrigerators. The capacity is much larger than that of an ordinary refrigerator. The price is also more than 5111 ~ 11111 yuan.

3. Compressor type

1. Fixed frequency:

The compressor of traditional refrigerator is generally fixed frequency, that is, the power of refrigerator is constant during operation.

2. Frequency conversion:

Because the refrigerator is in working state all day, after adopting frequency conversion refrigeration, the compressor can cool at full speed when the refrigerator is started, quickly reach the set temperature, and then always run at low speed, so the energy-saving effect is more obvious. Frequency conversion compressor can not only quickly refrigerate, but also reduce energy consumption and noise, which can be described as killing two birds with one stone. The price of products with frequency conversion technology is relatively high, so you can choose to buy them according to your own needs.

Fourth, look at energy efficiency

The energy efficiency level of a refrigerator is determined according to the 24-hour power consumption of a refrigerator, so you can see how much the refrigerator consumes at a glance through the energy-saving label. However, it is precisely because of this direct perception that consumers ignore the freezing ability of refrigerators.

for example, a 24-hour power consumption of 1.3KW? H refrigerator, its freezing capacity is 5 kg. And a 24-hour power consumption is 1.6KW? H, its freezing capacity is 21kg. According to the analysis of the actual situation, it is obvious that the latter refrigerator is relatively energy-saving, so it cannot be emphasized unilaterally? The more electricity you save, the better? . Whether the refrigerator is energy-saving or not is a concept relative to the freezing capacity of the refrigerator. Please remember this when purchasing the refrigerator.

V. Performance of the machine itself

People who may have little input power will pay attention to it. If the input power is too small, the refrigerator compressor will not stop for a long time, which is called? Small horse-drawn cart? . For large-capacity refrigerators, the greater the input power, the better. For example, the compressor power of a refrigerator 216L is only 81W, while that of a smaller refrigerator 168L is 111W, which is like installing a 1.5p air conditioner in a 21-square-meter house and comparing the effect with installing a 1.5p air conditioner in another 11-square-meter room.

the insulation layer of the refrigerator is even more incomprehensible. The insulation layer is thick or thin, but it mainly depends on the foam layer material and technology. The foam materials include cyclopentane (C5H11) and vacuum materials. Because the old fluorine-containing foaming agent has an impact on the environment, the Montreal protocol stipulates that HCFC-141b will be phased out in developed countries in 2113, while developing countries can postpone it until 2141. Pentane series has excellent environmental performance, low price and easy availability. cyclopentane has been popularized in Europe and America, and it is also the trend of foaming agent for refrigerators in the future.

The refrigerator is a household appliance. It is bought for living, not for seeing. Therefore, before buying, you need to know where your needs for the refrigerator are, whether you simply store a small amount of food every day or you don't have much time to buy food at ordinary times. If you want to store food in it for a week at a time, your purchase will be different depending on your needs.

remember the above points, you will not be blind in choosing a refrigerator, and you can choose a product that suits you without wasting money.