The refrigerator is a refrigeration equipment that maintains constant low temperature, and it is also a civilian product that keeps food or other items keeping constant low temperature.There are compressors and ice -making cabinets or boxes used to freeze in the box, and a storage box with a refrigeration device.The volume of household refrigerators is usually 20 to 500 liters.
What are the categories of the refrigerator
There are many types of refrigerators. Generally, it is classified according to its internal cooling, use, climate environment, appearance, and cooling method.
Internal cooling classification
Air conditioning compulsory cycle: also known as inter -cold (air -cooled) or frost -free refrigerator.There is a small fan in the refrigerator forced the air in the box, so the temperature in the box is uniform, the cooling speed is fast, and it is convenient to use.However, due to the defrosting system, the power consumption consumes slightly, and the manufacturing is relatively complicated.
Air conditioning naturally convective: also known as straight cold or frost refrigerators.Its frozen chamber is surrounded by evaporator, or there is an evaporator in the freezer. In addition, there is an evaporator on the upper part of the refrigerator, which can be used directly from the evaporator to reduce the heat and cool down.This type of refrigerator is relatively simple, with a small power consumption, but the temperature is slightly poor, and it is relatively inconvenient to use.
The compulsory cycle of air -conditioning and the natural convection formula: new products in this form of refrigerators are mostly adopted, mainly at the same time taking into account the advantages of wind and cold refrigerators.
Use classification
Refrigerated box: At least one room in this type of refrigerator is a refrigerator room to store foods that do not need to freeze, and the temperature should be kept above 0 ° C.However, this type of refrigerator can have cooling rooms, ice -making rooms, frozen food storage rooms, and ice greenhouses, but it does not have a freezer.
Refrigerated freezer: There is at least one room in this type of refrigerator in the refrigerator and a room in the freezer.
Frozen box: At least one of this type of refrigerator is freezing room and can store foods according to regulations. There may be frozen food storage rooms.
Climate and environment classification
It is divided into Agena (SN), temperate (N), sub -hot belt (ST), tropical (T).
The appropriate environmental temperature of the Yamongian type (SN) is: 10 ℃ ～ 32 ℃;
Ginseng type (N), the appropriate environmental temperature is: 16 ℃ ～ 32 ℃;
The sub -hot belt type (ST), the suitable environmental temperature is: 18 ℃ ～ 38 ℃;
Tropical type (T), the appropriate environmental temperature is: 18 ℃ ～ 43 ℃.
Appearance classification
Single -door refrigerator: The refrigerator in the box with a refrigerator and the frozen room is called a single -door refrigerator in a box with a door with only one door. It is mainly refrigerated and preserved. The structure is simple, easy to use, less power consumption, and low prices.
Two -door refrigerators: separated from the refrigerator and freezing room, with two box doors. The small door on the top is the freezing room. The bottom door is the refrigerator room. The structure of the double -door refrigerator is complicated than a single door refrigerator.There are many materials and expensive.
Three -door refrigerator: On the basis of the upper and lower double -door refrigerators, a fruit and vegetable room is added below, and after opening the door alone, it becomes a three -door refrigerator.The volume of the three -door refrigerator is relatively large, mostly above 200L, and there are 3 different thermal areas. It is suitable for freezing, refrigerated, fresh, and fruits and vegetables.
Four -door refrigerator: Four -door refrigerators are based on the three -door refrigerator, adding a light freezer room with a temperature between 0 ~ 1 ° C and storage of fresh fish (0 ~ 1 ° C.Also known as fresh -keeping room).The four -door refrigerator has 4 temperature areas, which are suitable for freezing, refrigeration, freshness and fruit and vegetable storage.
Classification
Vertical refrigerator: It has the largest size in the height, and the box door is located in front of the refrigerator, covering a small area.
Celebrity refrigerator: The size of its length is the largest, and most of the box doors are located at the top of the box.Frozen boxes are commonly used in the box, opening the box door, which can reduce the leakage heat.However, it covers a large area and is not convenient to access items.
Desktop refrigerator: Its height is 750 ~ 850mm, the width is 900 ~ 1 000mm, and the depth is 450 ~ 500mm.Most of them are refrigerated boxes, suitable for storing cold drinks and fruits.
Cooling wind
Gas compressed electric refrigerator: It relies on low -boiling liquid refrigerant (such as Freon R12) to absorb heat when vaporizing to achieve refrigeration, and then evaporates it with a compressor, and then heats up to the refrigerator of the refrigerator.EssenceBecause of the theoretical and production technology of this kind of refrigerator, the process is relatively mature and the service life is longer.
Gas absorbing electric refrigerator: It is a hydrogen diffusion agent that uses thermal source and is commonly used as a refrigerant, which can cause the hydrogen ammonia evaporation conditions. It uses ammonia, water, and hydrogen hybrid solution to complete the continuous "absorbing" refrigerator "EssenceBecause there is no operating machinery, it has no noise, simple structure, low cost, not easy to damage, and long service life.Various heat sources such as electric gas, natural gas, kerosene lamps and solar energy can be used to work.
Semiconductor refrigerator: It uses semiconductor materials to generate Pell occupation effects to work, that is, use P -type semiconductor and N -type semiconductor system to form an electric puppet.Achieve refrigeration.Semiconductor refrigeration and mechanical refrigeration comparison, there are small volume, light quality, no noise, no vibration, no wear, long life, long cooling rate adjustment, convenient adjustment, no pollution and other characteristics.However, due to the high price, it is not popularized.
Other categories
The meaning of energy -saving refrigerator, computer refrigerator, fluoride refrigerator, inverter refrigerator
With the implementation of the energy -efficiency ratio identification, energy saving has become a focus of promotion of various brands. It is characterized by energy saving.Lets take a look at their specific meanings.
1. Energy -saving refrigerator: The energy -saving refrigerator uses an advanced refrigerator compressor. The technical parameters such as refrigeration and energy efficiency ratio are optimized. The insulation performance of the refrigerator is enhanced. Therefore, the thermal conductivity of the entire refrigerator box is better than the average refrigerator.For a 268 -liter energy -saving refrigerator, saving power consumption of more than 2,300 yuan during the entire life period is relatively affordable to calculate the energy -saving refrigerator.
2. Computer refrigerator: The third -generation digital temperature control refrigerator is based on computer artificial intelligence and represented by precise digital temperature control.It can be displayed with visual digital temperature outside the box to accurately control the temperature of the box.Even if the refrigerator is frequently turned on, the computer system can be controlled to change the operating frequency of the compressor, so that the temperature is fixed to the set value, and the effect of saving is achieved.
3. Fluorofluor refrigerator: Speaking of "fluoride" refrigerators, people often think that this refrigerator does not use fluoride, because fluorine refrigerators are refrigerators using Flun 11 and Flun 12 to make foaming agents and refrigerant.However, experts from the China Protection of Consumer Foundation pointed out that from the chemical reaction, it can be seen that the culprit that destroys the ozone layer is "chlorine" and not "fluoride".The refrigerator refrigerant now enabled is R600A, which makes the refrigerators refrigeration speed faster and more energy -saving.
4. Inverter refrigerator: The compressor speed can change from 2000 to 4000 rpm, according to the external temperature changes and food storage conditions.Smooth frequency conversion can avoid energy waste, more than 70%of energy saving than ordinary refrigerators, and can also reduce the noise value by more than 50%. It can also extend the service life of the compressor and the whole machine system.
Refrigerator purchase guide
Division category selection refrigerator
First of all, the refrigerator is also divided into many types. The general division method is distinguished according to the door of the refrigerator.The refrigerator is divided into a single -door refrigerator, a double -door refrigerator, a door -to -door refrigerator, a three -door refrigerator and a multi -door refrigerator.
Single -door refrigerator: There is only one door in the refrigerator, but there is a small space in it.The consolidation capacity is generally between 50-100 liters and the price is about 400-800 yuan, which is relatively suitable for people with small or low capacity demand.
Two-door refrigerator: This type of refrigerator is the largest refrigerator on the market. The traditional upper and lower door design. The capacity is generally about 150-250 liters. The price gap is relatively large.
For opening refrigerators: The capacity of the refrigerator of the door is relatively large, generally more than 300 liters, and some can even reach more than 500 liters.This kind of refrigerator is more luxurious and high -end, and the price is above 6,000 yuan.
Sankou refrigerator: The three-door refrigerator is a more popular refrigerator product in the near future, mainly because there is a space for fresh-keeping function in the middle, which can be freely adjusted between 0-4 degrees. The refrigerator capacity is relatively large. Generally, it is 200-About 350 liters, but the price is more expensive than the two -door refrigerator.
Multi -door refrigerators: This type of refrigerator is mainly aimed at high -end users, with rich functions. There are four open doors and six open door refrigerators.The capacity is much larger than ordinary refrigerators, but the price is more than 10,000 yuan.
In addition to the way to divide the door, the refrigerator can also be divided into: cold, straight and mixed.
Wind -cold refrigerator: There is an automatic defrost device, easy to use, the cooling room has fast cooling speed, the temperature in the box is uniform, the quality of food refrigerates is good, but the freezing room is slower than the cold refrigerator, the structure is complex, the power consumption is large, the price is price, the price isHigher.
Cold refrigerator: simple structure, low price, fast freezing and cooling speed, less power consumption, low noise, but slow cooling room cooling, the temperature in the box is uneven, the frosting room evaporator is easy to frost, and frosting troubles.
Wind -cold -cold hybrid refrigerator: The advantages of the first two refrigerators are integrated. The refrigerator is straight -cold, and the food water is not easy to lose. The freezing room is wind -cooled. It does not need to be frosting regularly.
Learn to watch the energy -saving logo clever
The energy efficiency level of the refrigerator is determined according to the 24 -hour power consumption of a refrigerator. Therefore, consumers can see the power consumption of the refrigerator at a glance through the energy -saving logo.However, because of this direct perception, consumers ignore the freezing ability of the refrigerator.For example, a refrigerator with a power consumption of 0.3 kWh with a power consumption is 5 kg.A 24 -hour power consumption is 0.6 kWh, and its freezing ability is 20 kg.If you only look at the energy -saving logo, consumers must think that the first refrigerator is more power -saving, but according to the actual analysis, it is obvious that the latter refrigerator is relatively electric -saving.
Whether the refrigerator is energy -saving is a concept of the refrigerator frozen ability. Do not forget this when buying.

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