Most of the refrigerators in the refrigerator market are single-cycle refrigerators, and the so-called single-cycle, double-cycle, and three-cycle refer to the refrigeration cycle of the refrigerator. Single-cycle refrigerators and dual-cycle refrigerators are all different, with different levels of refrigeration, temperature control, and energy efficiency.
Single-cycle and dual-cycle refrigerators have different structures. The condenser and evaporator of the single-cycle refrigerator are only connected by a circulation tube, and the freezing and refrigeration rooms use the same circuit, and the refrigerant only circulates in this circulation tube, which can easily cause cross-smell and cross-contamination of the refrigerator.
The refrigeration room and freezer compartment of the dual-circulation refrigerator each have independent condensers and evaporators, 2 evaporators and 2 fans, and the refrigerator refrigerator and freezer compartment are not easy to carry odors.
Single-cycle refrigerators are cheaper, suitable for consumers with limited budgets, and single-cycle refrigerators are completely sufficient for general families.
From the perspective of energy efficiency, single-cycle refrigerators consume more electricity than dual-cycle refrigerators. There is only one thing in a single cycle, that is to say, the refrigerator and the freezer use the same circuit, the temperature regulation of the refrigerator and the freezer must be different, and of course one circuit cannot be flexibly adjusted according to the demand, and it will definitely consume more electricity relatively speaking.
However, the refrigerator and freezer compartment have their own circuits, which can flexibly control the refrigeration power according to the temperature, so as to save more energy, not waste, and improve the energy efficiency ratio.
Single-cycle refrigerators use the same refrigeration circuit for refrigeration and freezing, so that refrigeration and freezing are easy to affect each other, resulting in the food in the refrigerator or freezing or spoiling due to refrigeration.
The dual-cycle refrigerator adopts independent refrigeration circuits for refrigeration and freezing, which can well avoid cross-contamination and flavor crossover between the freezer and the refrigerator, which affects the taste and freshness of the food.
The temperature required for the refrigerator and the freezer is different, if the refrigeration and freezing use the same circulation system, there is only one thermostat, this thermostat needs to adjust the temperature of the entire refrigerator, the temperature required for refrigeration and freezing is different, so the temperature control must be different.
The dual-cycle refrigerator has two independent thermostats, and the refrigeration and freezing can be controlled separately, which can control the temperature of different areas more accurately to meet the needs of different food temperatures, and the food preservation and freezing effect is definitely better.
From the above points, it is not difficult to see that in addition to the double cycle, in addition to being more expensive than the single cycle, it is better in terms of energy efficiency, refrigeration and temperature control. The following is a list of double-cycle refrigerators within 5,000 yuan, dual-cycle refrigerators are more with cross doors, and there are more multi-door and T-door refrigerators, friends with this budget can take a look.
The independent dual system does not carry the flavor, and the refrigeration and freezing are each equipped with a set of evaporators, and the ingredients in the two areas are independently prepared and frozen without flavoring each other.
452 liters of fine storage capacity, 650mm slim embedded, equipped with integrated centrifugal fan and inverter compressor, first-class energy efficiency, 078 degrees per day, 35db low noise, with dry and wet storage space, dry goods dry and not damp, wet area moist more crisp and tender;The three-level mode of mother and baby, fresh and original fresh can be reached with one click.
Multi-layer microporous air outlet and intelligent frost water vapor circulation are used to replenish water for fruits and vegetables.
Refrigeration & freezing full purification, the air duct of the refrigerator room has a built-in palladium and silver ion sterilization device to achieve long-term sterilization, deodorization and ethylene removalThe freezer uses copper ions to quickly decompose bacteria and remove odors, with a sterilization rate of 95%, odor decomposition rate of 99%, and ethylene decomposition rate of 99%.
Hisense510Cross door dual circulation system is actually not much different from Rongsheng452,But Hisense's capacity is larger,The fuselage is larger than Rongsheng,694mmThe fuselage,It also uses a dual refrigeration system,Effectively reduce the flavor of ingredients。
Vector inverter compressor + inverter centrifuge, new level of energy efficiency, 083 kWh per day, 36db low-noise operation.
The freezer is equipped with a copper ion catalyst module, and the refrigerator is equipped with HCC titanium, silver, and palladium ions, which are antibacterial, odorless, moisturizing, and anti-ripening. Protect the ingredients from flavor, effectively prevent the ingredients from becoming moldy, and prolong the freshness of the ingredients.
Maternal and infant mode, fresh-keeping mode, chilling mode, independent dry and wet fine control space.
328 micro-pores for air, 360° surround three-dimensional wind, not blowing food directly;Built-in high-sensitivity 2R visual dual radar temperature probe, accurately perceive the temperature changes of ingredients and the environment in the box, full-time intelligent temperature control, long-lasting constant temperature preservation.
It also adopts an independent dual system to solve the problem of cross-flavor from the source, with excellent refrigeration and good preservation effect.
Both the refrigerated and frozen areas are deodorized and antibacterial, and PT deodorant is 9999% antibacterial, 992% taste reduction rate, 992% trimethylamine odor reduction rate, grade 0 mildew resistance.
There are three levels of space for mothers and babies, including mothers and children, treasures, fruits and vegetables, and one area is multi-purpose and can be adjusted with one key.
66.The 8 cm slim body occupies a small area, and the door opens at a 90° right angle, saving the door opening space.
Inverter fan + inverter compressor low-noise intelligent operation, first-class energy efficiency, energy saving and environmental protection, less than one kilowatt-hour of electricity a day, 36 decibels of low noise, support APP control.
Rongsheng This is a 501 upgrade, and the event price doesn't need to be so expensive, with a pre-sale price of 3699 and 20 tonight00 The first hour payment is only 3499, and the ** of 3499 is really not accurate.
Independent dual system, 513L large capacity, this and the first 452 Rongsheng can be said to be in addition to the capacity and color, the biggest difference is that this model supports wifi control, if it is 3499** cost performance is very good.
Midea's refrigeration & freezing is equipped with a family of evaporators, independent refrigeration, each performing its own duties without interfering with each other, and no matter how many ingredients there are, there is no fear of cross-flavor.
PST+ intelligent purification technology, equipped with a vortex suction cabin, continuously inhales the air in the refrigerator into the ultra-magnetic induction discharge field, and quickly decomposes and annihilates odors in a storm sweep, with a odor removal rate of 99% in 19 minutes, and 99% active sterilization and virus removal.
Odor sterilization can be completed in an independent device, no secondary pollution is safer, innovative technology does not require consumables, and can be used for a long time.
Equipped with multi-dimensional intelligent inverter system, on-demand refrigeration, first-class energy efficiency, comprehensive power consumption of 089 degrees per day, 38db bass run.
Precise control of temperature and humidity, free adjustment according to the humidity required by the ingredients, three levels of temperature change, with the food;Support support WiFi control.
Independent dual system, refrigeration and freezing adopt independent refrigeration system, each equipped with a group of evaporators and fans do not interfere with each other and do not cross flavors, independent and efficient refrigeration, and the preservation effect is better.
The whole cabin PT deodorant antibacterial, refrigerated and frozen PT deodorant 9999% antibacterial.
It has three levels of space for mothers and babies, maternal and infant files, treasure files, fruit and vegetable files, multi-purpose in one area, one-key adjustment, 506 liters of French fine storage with large capacity, humanized freezing full-width drawer, 7With a large freezing power of 5kg, it freezes more and freezes faster.
66.The 8 cm slim body occupies a small area, and the door opens at a 90° right angle, saving the door opening space. The high and low humidity control space is just right.
Inverter fan + inverter compressor low-noise intelligent operation, first-class energy efficiency, 36 dB low noise, 089 degrees a day;Support wifi control.
This is actually exactly the same as the third beauty 531 function, but the third is a cross door, and this is a French multi-door, for the choice of door style depends on people.
The **fluctuation of household appliances is very large, and the specific ** should be subject to the time of the day**.
The above six are all double-circulation system refrigerators, basically cross door refrigerators, the last one is a French multi-door refrigerator, the cross door is not much different, the function is not much different, if there is no requirement for the brand, choose a cheap one;If you have requirements for the brand,Rongsheng,Hisense,Midea can choose by yourself。