Control method and device of refrigerating system, refrigerator and computer readable storage medium

By increasing the refrigerant amount and mode control of the refrigeration evaporator in the dual-system refrigerator, the problem of poor refrigeration effect is solved, and the improvement of refrigeration effect and the synchronous satisfaction of the refrigeration effect in high-temperature environments is achieved.

CN120274464APending Publication Date: 2025-07-08TCL HOME APPLIANCES (HEFEI) CO LTD
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Patent Information

Application Number
CN202510518893.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

In a dual-system refrigerator, the refrigerated evaporator has a small amount of liquid dispensing in a high temperature environment, resulting in poor refrigeration effect and it is difficult to meet the refrigeration needs of both refrigeration and refrigeration.

Method used

By making the refrigerant distributed by the refrigerant evaporator greater than the refrigerant evaporator in the refrigeration system, combined with the mode control under different startup conditions, the refrigerant evaporator has sufficient refrigerant, and the liquid dispenser design and fan speed adjustment are adopted to meet the refrigeration and refrigeration effects simultaneously.

Benefits of technology

Improve the refrigeration effect in a high-temperature environment, and ensure that the temperature of the refrigeration chamber and the refrigeration chamber reaches a set point synchronously, so as to improve the refrigeration effect and satisfy the synchronous satisfaction of the refrigeration effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a control method and device of a refrigeration system, a refrigerator and a storage medium, in the refrigeration system, a compressor, a condenser and a liquid separator are sequentially conducted, the liquid separator communicates with a refrigeration evaporator and a freezing evaporator, and the refrigerant amount distributed by the refrigeration evaporator can be larger than that distributed by the freezing evaporator; the control method comprises the steps that when a compressor is shut down, the first real-time temperature of a refrigeration chamber and the second real-time temperature of a freezing chamber are obtained; if the second real-time temperature reaches the freezing start-up point temperature, the first real-time temperature does not reach the refrigeration start-up point temperature, or if the first real-time temperature reaches the refrigeration start-up point temperature, the second real-time temperature does not reach the freezing start-up point temperature, or if the first real-time temperature reaches the refrigeration start-up point temperature, the second real-time temperature does not reach the refrigeration start-up point temperature. And when the second real-time temperature reaches the freezing starting point temperature, the compressor, the refrigeration fan and the freezing fan have different operation modes, so that the temperature in the refrigeration chamber and the temperature in the freezing chamber are synchronously reduced to respective shutdown point temperatures.
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Description

Technical Field

[0001] This application relates to the technical field of refrigerators, and specifically relates to a control method, device, refrigerator, and computer-readable storage medium for a refrigeration system. Background Art

[0002] A refrigerating evaporator and a freezing evaporator are simultaneously arranged in a refrigerator to achieve the purpose of preventing odor cross-talk. This type of refrigerator is a dual-system refrigerator. In a dual-system refrigerator, the refrigerating evaporator and the freezing evaporator are respectively connected to two outlets of a three-way valve; however, the distribution of the refrigerant cannot be controlled, which easily causes less liquid separation amount of the refrigerating evaporator in a high-temperature environment, resulting in poor refrigerating effect. Therefore, how to improve the refrigerating effect of the dual-system refrigerator while simultaneously satisfying the freezing effect of the freezer has become a technical problem that urgently needs to be solved. Summary of the Invention

[0003] This application provides a control method, device, refrigerator, and computer-readable storage medium for a refrigeration system, aiming to solve the technical problem in the prior art of how to improve the refrigerating effect of a dual-system refrigerator while simultaneously satisfying the freezing effect of the freezer.

[0004] In a first aspect, this application proposes a control method for a refrigeration system. The refrigeration system includes a compressor, a condenser, a liquid distributor, a refrigerating evaporator, a freezing evaporator, a refrigerating fan, and a freezing fan; the compressor, the condenser, and the liquid distributor are sequentially conducted, the liquid distributor is connected to the refrigerating evaporator and the freezing evaporator, and enables the amount of refrigerant distributed to the refrigerating evaporator to be greater than the amount of refrigerant distributed to the freezing evaporator, and the refrigerating evaporator and the freezing evaporator are conducted with the compressor; the control method includes:

[0005] When the compressor stops operating, obtain the first real-time temperature of the refrigerating compartment and the second real-time temperature of the freezing compartment; wherein, the refrigerating fan is configured to provide the cold quantity of the refrigerating evaporator to the refrigerating compartment, and the freezing fan is configured to provide the cold quantity of the freezing evaporator to the freezing compartment;

[0006] If the second real-time temperature reaches the freezing start-up point temperature and the first real-time temperature does not reach the refrigerating start-up point temperature, then control the compressor, the freezing fan, and the refrigerating fan to operate according to a first corresponding mode;

[0007] If the first real-time temperature reaches the refrigerating start-up point temperature and the second real-time temperature does not reach the freezing start-up point temperature, then control the compressor, the freezing fan, and the refrigerating fan to operate according to a second corresponding mode;

[0008] If the first real-time temperature reaches the refrigeration start-up point temperature while the second real-time temperature reaches the freezing start-up point temperature, control the compressor, the freezing fan and the refrigeration fan to operate in accordance with a third corresponding mode;

[0009] Among them, the first corresponding mode, the second corresponding mode and the third corresponding mode are used to reduce the temperature in the refrigerated compartment to the refrigeration shutdown point temperature while reducing the temperature in the frozen compartment to the freezing shutdown point temperature.

[0010] Optionally, if the second real-time temperature reaches the freezing start-up point temperature while the first real-time temperature does not reach the refrigeration start-up point temperature, controlling the compressor, the freezing fan and the refrigeration fan to operate in accordance with the first corresponding mode includes:

[0011] Obtain a first temperature difference between the first real-time temperature and the refrigeration shutdown point temperature;

[0012] Determine a first operating speed of the refrigeration fan according to the first temperature difference;

[0013] Control the compressor to operate at a first preset speed, control the freezing fan to operate at a second preset speed, and control the refrigeration fan to operate at the first operating speed.

[0014] Optionally, if the first real-time temperature reaches the refrigeration start-up point temperature while the second real-time temperature does not reach the freezing start-up point temperature, controlling the compressor, the freezing fan and the refrigeration fan to operate in accordance with the second corresponding mode includes:

[0015] Obtain a second temperature difference between the second real-time temperature and the freezing shutdown point temperature;

[0016] Determine a second operating speed of the freezing fan according to the second temperature difference;

[0017] Control the compressor to operate at a third preset speed, control the refrigeration fan to operate at a fourth preset speed, and control the freezing fan to operate at the second operating speed.

[0018] Optionally, if the first real-time temperature reaches the refrigeration start-up point temperature and the second real-time temperature reaches the freezing start-up point temperature, controlling the compressor, the freezing fan and the refrigeration fan to operate in accordance with the third corresponding mode includes:

[0019] Control the compressor to operate at a fifth preset speed, control the refrigeration fan to operate at a sixth preset speed, and control the freezing fan to operate at the seventh preset speed.

[0020] Optionally, the control method further includes:

[0021] Obtaining the refrigerant distribution ratio of the liquid distributor;

[0022] Determining the first corresponding mode, the second corresponding mode, and the third corresponding mode according to the refrigerant distribution ratio.

[0023] Optionally, the control method further includes:

[0024] Obtaining the refrigeration gear of the refrigeration system;

[0025] Determining the first corresponding mode, the second corresponding mode, and the third corresponding mode according to the refrigeration gear.

[0026] Optionally, the control method further includes:

[0027] When the temperature in the refrigerated compartment drops to the refrigerated shutdown point temperature and the temperature in the frozen compartment drops to the frozen shutdown point temperature, controlling the compressor, the frozen fan, and the refrigerated fan to stop.

[0028] In a second aspect, the present application further provides a control device for a refrigeration system. The refrigeration system includes a compressor, a condenser, a liquid distributor, a refrigerated evaporator, a frozen evaporator, a refrigerated fan, and a frozen fan; the compressor, the condenser, and the liquid distributor are sequentially connected, the liquid distributor is connected to the refrigerated evaporator and the frozen evaporator, and the amount of refrigerant distributed to the refrigerated evaporator can be greater than the amount of refrigerant distributed to the frozen evaporator, and the refrigerated evaporator and the frozen evaporator are connected to the compressor; the control device includes:

[0029] An acquisition module that, when the compressor stops, acquires the first real-time temperature of the refrigerated compartment and the second real-time temperature of the frozen compartment; wherein, the refrigerated fan is configured to provide the cold quantity of the refrigerated evaporator to the refrigerated compartment, and the frozen fan is configured to provide the cold quantity of the frozen evaporator to the frozen compartment;

[0030] A control module that, if the second real-time temperature reaches the frozen startup point temperature and the first real-time temperature does not reach the refrigerated startup point temperature, controls the compressor, the frozen fan, and the refrigerated fan to operate in a first corresponding mode;

[0031] The control module, if the first real-time temperature reaches the refrigerated startup point temperature and the second real-time temperature does not reach the frozen startup point temperature, controls the compressor, the frozen fan, and the refrigerated fan to operate in a second corresponding mode;

[0032] The control module, if the first real-time temperature reaches the refrigeration startup point temperature and the second real-time temperature reaches the freezing startup point temperature at the same time, controls the compressor, the freezing blower, and the refrigeration blower to operate according to the third corresponding mode;

[0033] Among them, the first corresponding mode, the second corresponding mode, and the third corresponding mode are used to reduce the temperature in the refrigerated compartment to the refrigeration shutdown point temperature while reducing the temperature in the frozen compartment to the freezing shutdown point temperature.

[0034] In a third aspect, the present application also proposes a refrigerator, which includes a controller that executes to implement the steps in the control method of the refrigeration system as described above.

[0035] In a fourth aspect, the present application also proposes a computer-readable storage medium, on which a computer program is stored, and the computer program is loaded by a processor to execute the steps in the control method of the refrigeration system as described above.

[0036] In the technical solution of the embodiment of the present application, by making the refrigerant amount allocated to the refrigeration evaporator greater than the refrigerant amount allocated to the freezing evaporator, it is ensured that there is enough refrigerant passing through the refrigeration evaporator to improve the refrigeration effect; especially to ensure the refrigeration effect in a high-temperature environment. And, in three different startup operating conditions of the refrigeration system, these three startup operating conditions are: freezing temperature reaching startup, refrigeration temperature reaching startup, and freezing and refrigeration synchronously reaching startup; corresponding modes for controlling the operation of the compressor, the freezing blower, and the refrigeration blower are configured for these three startup operating conditions respectively; control the compressor, the refrigeration blower, and the freezing blower to operate according to the corresponding modes of the corresponding startup operating conditions, so that while the temperature in the refrigerated compartment is reduced to the refrigeration shutdown point temperature, the temperature in the frozen compartment is reduced to the freezing shutdown point temperature, ensuring the refrigeration effect while the refrigerated compartment and the frozen compartment reach the temperature synchronously. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0038] Figure 1 It is a schematic structural diagram of the refrigeration system provided in the embodiment of the present application;

[0039] Figure 2 It is a schematic structural diagram of the refrigerator provided in the embodiment of the present application;

[0040] Figure 3It is a schematic structural diagram of the dispenser provided in the embodiment of the present application;

[0041] Figure 4 It is a schematic flowchart of the refrigeration method of the refrigeration system provided in the embodiment of the present application;

[0042] Figure 5 It is a schematic diagram of the sub-steps of step S210 in the embodiment of the present application;

[0043] Figure 6 It is a schematic diagram of the sub-steps of step S220 in the embodiment of the present application;

[0044] Figure 7 It is a schematic structural diagram of the control device of the refrigeration system provided in the embodiment of the present application.

[0045] List of reference numerals

[0046] 10 Liquid distributor 60 Compressor 11 Refrigerant inlet 70 Condenser 12 Cavity 80 Drier filter 13 Wall of the device 100 Refrigerator 20 First throttling element 110 Refrigerating blower 21 First pipe interface 120 Freezing blower 30 Second throttling element 130 Refrigerating compartment 31 Second pipe interface 140 Freezing compartment 40 Refrigerating evaporator 01 Acquisition module 50 Freezing evaporator 02 Control module Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0049] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or instance". Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the present invention. In the following description, details are set forth for the purpose of explanation. It should be understood that those of ordinary skill in the art can recognize that the present invention can be practiced without these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in this application.

[0050] Embodiments of this application provide a control method, device, refrigerator, and computer-readable storage medium for a refrigeration system, which will be described in detail below respectively.

[0051] As Figure 1 shown, embodiments of this application propose a refrigeration system, which includes a compressor 60, a condenser 70, a liquid distributor 10, a refrigerating evaporator 40, a freezing evaporator 50, a refrigerating fan 110, and a freezing fan 120. The compressor 60, the condenser 70, and the liquid distributor 10 are sequentially connected in communication. The liquid distributor 10 is connected to the refrigerating evaporator 40 and the freezing evaporator 50, and enables the amount of refrigerant distributed to the refrigerating evaporator 40 to be greater than the amount of refrigerant distributed to the freezing evaporator 50. The refrigerating evaporator 40 and the freezing evaporator 50 are connected in communication with the compressor 60. In the technical solution of the embodiments of this application, by making the amount of refrigerant distributed to the refrigerating evaporator 40 greater than the amount of refrigerant distributed to the freezing evaporator 50, it is ensured that there is enough refrigerant passing through the refrigerating evaporator 40 to improve the refrigerating effect; especially in a high-temperature environment, the amount of refrigerant distributed to the refrigerating evaporator 40 is more.

[0052] In addition, compared with the refrigerating compartment, the freezing compartment is used relatively less and is more likely to be in a steady-state environment; that is, the temperature in the freezing compartment is more stable than the temperature in the refrigerating compartment. For this reason, in the technical solution of the embodiments of this application, the amount of refrigerant distributed to the refrigerating evaporator 40 is made greater than the amount of refrigerant distributed to the freezing evaporator 50, so that the refrigerating compartment can reach the refrigerating requirements faster. Since the temperature in the freezing compartment is more stable, during the refrigeration process of the refrigeration system, part of the refrigerant also enters the freezing evaporator 50 to keep the temperature of the freezing compartment stable.

[0053] As Figure 2As shown, the refrigeration system is applied to a dual-system refrigerator 100. The dual-system refrigerator 100 is a dual-air-cooled refrigerator 100. The installation structures of the refrigerating fan 110 and the freezing fan 120 and the corresponding air duct structures are not the key points of improvement in this application, so the structures in the prior art can be adopted. In this embodiment, the refrigerating fan 110 is configured to supply the cold quantity of the refrigerating evaporator 40 to the refrigerating compartment, that is, to drive the air in the refrigerating compartment to exchange heat with the refrigerating evaporator 40, so as to reduce the temperature in the refrigerating compartment. The freezing fan 120 is configured to supply the cold quantity of the freezing evaporator 50 to the freezing compartment, that is, to drive the air in the freezing compartment to exchange heat with the freezing evaporator 50, so as to reduce the temperature in the freezing compartment.

[0054] In the technical solution of the embodiment of the present application, the refrigerant distributor 10 distributes the refrigerant into the first throttling element 20 and the second throttling element 30 for temperature reduction and pressure reduction, and then flows into the refrigerating evaporator 40 and the freezing evaporator 50 respectively for refrigeration supply. Since the first pipe interface 21 of the first throttling element 20 communicating with the refrigerant distributor 10 is arranged lower than the second pipe interface 31 of the second throttling element 30 communicating with the refrigerant distributor 10, the refrigerant quantity distributed to the refrigerating evaporator 40 can be greater than the refrigerant quantity distributed to the freezing evaporator 50, so that more refrigerant is distributed to the refrigerating evaporator 40, improving the refrigerating effect of the refrigeration system under high ambient temperature conditions. When the refrigerant liquid level in the refrigerant distributor 10 is relatively low, the refrigerant can only enter the first capillary through the first pipe interface 21, and after passing through the first capillary, it enters the refrigerating evaporator 40, absorbs heat and evaporates in the refrigerating evaporator 40, providing a refrigerating effect for the refrigerating compartment 130. When the refrigerant liquid level in the refrigerant distributor 10 is relatively high, the refrigerant can enter the first capillary through the first pipe interface 21 or enter the second capillary through the second pipe interface 31. And because the first pipe interface 21 is lower than the second pipe interface 31, the pressure at the first pipe interface 21 is greater, so that more refrigerant is distributed to the refrigerating evaporator 40; the refrigerant after passing through the first capillary enters the refrigerating evaporator 40, absorbs heat and evaporates in the refrigerating evaporator 40, providing a refrigerating effect for the refrigerating compartment 130; the refrigerant passing through the second capillary enters the freezing evaporator 50, absorbs heat and evaporates in the freezing evaporator 50, providing a refrigerating effect for the freezing compartment 140.

[0055] In the embodiment, the refrigerant distributor 10 has a cavity 12 for accommodating the refrigerant. The shape of the refrigerant distributor 10 is not specifically limited and can be cylindrical, elliptical, square, funnel-shaped, etc. The size of the refrigerant distributor 10 is not specifically limited and is mainly set specifically according to the actual refrigeration requirements of the refrigeration system. The refrigerant inlet 11 of the refrigerant distributor 10 is arranged on the wall 13 and communicates with the cavity 12 for communicating with the condenser 70.

[0056] In the above embodiments, the specific structural forms of the refrigerating evaporator 40 and the freezing evaporator 50 are specifically selected according to the refrigeration requirements. For example, it can be a plate heat exchanger or a tube heat exchanger.

[0057] In the above embodiments, the first throttling element 20 and the second throttling element 30 can be one of a capillary tube or an expansion valve. For example, the first throttling element 20 and the second throttling element 30 are capillary tubes; that is, the first throttling element 20 is a first capillary tube, and the second throttling element 30 is a second capillary tube. Another example is that the first throttling element 20 and the second throttling element 30 are expansion valves; or one of the first throttling element 20 and the second throttling element 30 is a capillary tube, and the other is an expansion valve.

[0058] In some embodiments, both the first pipe interface 21 and the second pipe interface 31 are provided on the wall 13 of the liquid distributor 10, and the first pipe interface 21 is arranged lower than the second pipe interface 31. For example, the liquid distributor 10 is vertically placed, and the height of the second pipe interface 31 can be 5 mm - 20 mm higher than the height of the first pipe interface 21; the height difference between the two is also specifically set according to the actual refrigeration requirements of the refrigeration system, so no specific limitation is made.

[0059] In some embodiments, both the first pipe interface 21 and the second pipe interface 31 extend into the cavity 12 of the liquid distributor 10. In this embodiment, the first pipe interface 21 is arranged closer to the bottom of the cavity 12, and the second pipe interface 31 is arranged farther from the bottom of the cavity 12; the height difference between the two is also specifically set according to the actual refrigeration requirements of the refrigeration system, so no specific limitation is made.

[0060] In some embodiments, at least one of the outer sides of the first pipe interface 21 and the second pipe interface 31 is sleeved with a movable sleeve, the movable sleeve is configured to slide along the extending direction of at least one of the first pipe interface 21 and the second pipe interface 31, and one of the first pipe interface 21 and the second pipe interface 31 is communicated with the inside of the cavity 12 through the movable sleeve. In the embodiment, by setting the movable sleeve, the height difference between the first pipe interface 21 or the second pipe interface 31 and the refrigerant liquid level can be adjusted, and further the distribution of the refrigerant can be adjusted, so that the refrigeration system can adapt to more refrigeration requirements. For example, the movable sleeve is sleeved at the second pipe interface 31. When the movable sleeve moves, the inlet of the movable sleeve serves as the inlet for the refrigerant to enter the second pipe interface 31, and there is a height difference from the refrigerant liquid level, and the distribution of the refrigerant can be adjusted, so that the refrigeration system can adapt to more refrigeration requirements; when more refrigerant needs to be distributed to the freezing evaporator 50, the height difference between the second pipe interface 31 and the refrigerant liquid level can be lowered.

[0061] Correspondingly, the movable sleeve can also be sleeved on the first pipe interface 21, or both the first pipe interface 21 and the second pipe interface 31 are sleeved with movable sleeves. The movement of the movable sleeve is provided by a motor. For example, the motor drives the movable sleeve to move through a linear transmission mechanism.

[0062] In some embodiments, one of the first pipe interface 21 and the second pipe interface 31 extends into the cavity 12 of the liquid distributor 10, and the other is connected to the wall 13 of the liquid distributor 10 and communicates with the inside of the cavity 12 of the liquid distributor 10. For example, as Figure 3 shown, the first pipe interface 21 is provided on the wall 13 of the liquid distributor 10; the second pipe interface 31 extends into the cavity 12 of the liquid distributor 10. Or, the first pipe interface 21 extends into the cavity 12 of the liquid distributor 10, and the second pipe interface 31 is provided on the wall 13 of the liquid distributor 10.

[0063] In some embodiments, the second pipe interface 31 extends into the cavity 12 of the liquid distributor 10, and a movable sleeve is sleeved outside the second pipe interface 31. The movable sleeve is configured to slide along the extension direction of the second pipe interface 31, and the second pipe interface 31 is in communication with the inside of the cavity 12 through the movable sleeve. The movable sleeve is sleeved on the second pipe interface 31. When the movable sleeve moves, the inlet of the movable sleeve serves as the refrigerant inlet into the second pipe interface 31, and there is a height difference with the refrigerant liquid level, so that the distribution of the refrigerant can be adjusted, facilitating the refrigeration system to adapt to more refrigeration requirements; when more refrigerant needs to be distributed to the freezing evaporator 50, the height difference between the second pipe interface 31 and the refrigerant liquid level can be lowered.

[0064] The refrigeration principle of the refrigeration system provided by the embodiments of the present application is as follows: The compressor 60 compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the condenser 70 through a pipeline. In the condenser 70, the high-temperature and high-pressure gaseous refrigerant is condensed and then enters the liquid distributor (it can also enter the dryer filter 80 first and then enter the liquid distributor). When the refrigerant liquid level in the liquid distributor is low, the refrigerant can only enter the first capillary tube through the first pipe interface 21, and after passing through the first capillary tube, it enters the refrigerating evaporator 40, where it absorbs heat and evaporates to provide refrigeration for the refrigerating compartment 130. When the refrigerant liquid level in the liquid distributor is high, the refrigerant can enter the first capillary tube through the first pipe interface 21 or enter the second capillary tube through the second pipe interface 31. Since the first pipe interface 21 is lower than the second pipe interface 31, the pressure at the first pipe interface 21 is greater, so that more refrigerant is distributed to the refrigerating evaporator 40; the refrigerant after passing through the first capillary tube enters the refrigerating evaporator 40, where it absorbs heat and evaporates to provide refrigeration for the refrigerating compartment 130; the refrigerant passing through the second capillary tube enters the freezing evaporator 50, where it absorbs heat and evaporates to provide refrigeration for the freezing compartment 140. The gaseous refrigerant evaporated in the refrigerating evaporator 40 and the freezing evaporator 50 returns to the compressor 60 through the refrigerant branch to complete a refrigeration cycle.

[0065] Combined with the refrigeration system of the above embodiments and as Figure 4 shown, the embodiments of the present application propose a control method for the refrigeration system. As Figure 4 shown, the control method includes:

[0066] S100, when the compressor stops, obtain the first real-time temperature of the refrigerating compartment and the second real-time temperature of the freezing compartment; wherein, the refrigerating fan is configured to provide the cold quantity of the refrigerating evaporator to the refrigerating compartment, and the freezing fan is configured to provide the cold quantity of the freezing evaporator to the freezing compartment;

[0067] S210, if the second real-time temperature reaches the freezing start-up point temperature and the first real-time temperature does not reach the refrigerating start-up point temperature, control the compressor, the freezing fan and the refrigerating fan to operate according to the first corresponding mode;

[0068] S220, if the first real-time temperature reaches the refrigerating start-up point temperature and the second real-time temperature does not reach the freezing start-up point temperature, control the compressor, the freezing fan and the refrigerating fan to operate according to the second corresponding mode;

[0069] S230, if the first real-time temperature reaches the refrigeration startup point temperature while the second real-time temperature reaches the freezing startup point temperature, then control the compressor, the freezing blower, and the refrigeration blower to operate in accordance with a third corresponding mode;

[0070] Wherein, the first corresponding mode, the second corresponding mode, and the third corresponding mode are used to reduce the temperature in the refrigerated compartment to the refrigeration shutdown point temperature while reducing the temperature in the frozen compartment to the freezing shutdown point temperature.

[0071] In the technical solution of the embodiment of the present application, by making the refrigerant amount allocated to the refrigeration evaporator greater than the refrigerant amount allocated to the freezing evaporator, it is ensured that there is enough refrigerant passing through the refrigeration evaporator to improve the refrigeration effect; especially to ensure the refrigeration effect in a high-temperature environment. And, when the refrigeration system is in three different startup operating conditions, these three startup operating conditions are: freezing temperature reaching startup, refrigeration temperature reaching startup, and freezing and refrigeration synchronously reaching temperature startup; corresponding modes for controlling the operation of the compressor, the freezing blower, and the refrigeration blower are respectively configured for these three startup operating conditions; control the compressor, the refrigeration blower, and the freezing blower to operate in accordance with the corresponding modes of the corresponding startup operating conditions, so that while the temperature in the refrigerated compartment is reduced to the refrigeration shutdown point temperature, the temperature in the frozen compartment is reduced to the freezing shutdown point temperature, ensuring the refrigeration effect while the refrigerated compartment and the frozen compartment reach the temperature synchronously.

[0072] As an optional implementation manner of the above embodiment, as Figure 5 shown, when the second real-time temperature reaches the freezing startup point temperature and the first real-time temperature does not reach the refrigeration startup point temperature, the control of the compressor, the freezing blower, and the refrigeration blower to operate in accordance with the first corresponding mode includes:

[0073] S211, obtain the first temperature difference between the first real-time temperature and the refrigeration shutdown point temperature;

[0074] S212, determine the first operating speed of the refrigeration blower according to the first temperature difference;

[0075] S213, control the compressor to operate at a first preset speed, control the freezing blower to operate at a second preset speed, and control the refrigeration blower to operate at the first operating speed.

[0076] In this embodiment, if the second real-time temperature reaches the freezing startup point temperature while the first real-time temperature does not reach the refrigerating startup point temperature, it indicates that the temperature of the refrigerating compartment has not yet reached the condition for refrigerating startup; however, at this time, the freezing compartment has a cooling requirement, so the refrigeration system needs to start cooling. At this time, obtain the first temperature difference between the first real-time temperature and the refrigerating shutdown point temperature; determine the first operating speed of the refrigerating fan based on the first temperature difference, and control the compressor to operate at a first preset speed, and control the freezing fan to operate at a second preset speed.

[0077] In this embodiment, that is, if the second real-time temperature reaches the freezing startup point temperature while the first real-time temperature does not reach the refrigerating startup point temperature, the compressor operates at a preset first preset speed, and the freezing fan operates at a preset second preset speed; and since the temperature of the refrigerating compartment has not yet reached the refrigerating startup point temperature, the first operating speed is determined by the first temperature difference between the first real-time temperature and the refrigerating shutdown point temperature, so that the temperature of the refrigerating compartment can reach the refrigeration requirement synchronously with the temperature of the freezing compartment under the normal supply of cold energy in the freezing compartment.

[0078] As an alternative embodiment of the above embodiment, as Figure 6 shown, if the first real-time temperature reaches the refrigerating startup point temperature while the second real-time temperature does not reach the freezing startup point temperature, controlling the compressor, the freezing fan, and the refrigerating fan to operate in a second corresponding mode includes:

[0079] S221, obtain the second temperature difference between the second real-time temperature and the freezing shutdown point temperature;

[0080] S222, determine the second operating speed of the freezing fan according to the second temperature difference;

[0081] S223, control the compressor to operate at a third preset speed, control the refrigerating fan to operate at a fourth preset speed, and control the freezing fan to operate at the second operating speed.

[0082] In this embodiment, if the first real-time temperature reaches the refrigerating startup point temperature while the second real-time temperature does not reach the freezing startup point temperature, it indicates that the temperature of the freezing compartment has not yet reached the condition for freezing startup; however, at this time, the refrigerating compartment has a cooling requirement, so the refrigeration system needs to start cooling. At this time, obtain the second temperature difference between the second real-time temperature and the freezing shutdown point temperature; determine the second operating speed of the freezing fan based on the second temperature difference, and control the compressor to operate at a third preset speed, and control the refrigerating fan to operate at a fourth preset speed.

[0083] In this embodiment, that is, when the first real-time temperature reaches the refrigeration startup point temperature and the second real-time temperature does not reach the freezing startup point temperature, the compressor operates at a preset third preset speed, and the freezing fan operates at a preset fourth preset speed; and since the temperature of the freezing compartment has not reached the freezing startup point temperature, the second operating speed is determined by the second temperature difference between the second real-time temperature and the freezing shutdown point temperature, so that the temperature of the freezing compartment can reach the refrigeration demand synchronously with the temperature of the refrigerating compartment under the normal supply of the cold quantity of the refrigerating compartment.

[0084] As an alternative implementation of the above embodiment, the step of controlling the compressor, the freezing fan, and the refrigerating fan to operate in a third corresponding mode when the first real-time temperature reaches the refrigeration startup point temperature and the second real-time temperature reaches the freezing startup point temperature includes:

[0085] Controlling the compressor to operate at a fifth preset speed, controlling the refrigerating fan to operate at a sixth preset speed, and controlling the freezing fan to operate at the seventh preset speed.

[0086] In this embodiment, if the first real-time temperature reaches the refrigeration startup point temperature and the second real-time temperature reaches the freezing startup point temperature, it indicates that the refrigerating compartment and the freezing compartment need to be cooled simultaneously. At this time, the compressor operates at a fifth preset speed, the refrigerating fan is controlled to operate at a sixth preset speed, and the freezing fan is controlled to operate at the seventh preset speed, so that the temperature of the freezing compartment can reach the refrigeration demand synchronously with the temperature of the refrigerating compartment.

[0087] In the above embodiments, if the refrigeration gears of the refrigeration system are the same and the refrigerant distribution ratio of the liquid distributor is the same, the first preset speed, the third preset speed, and the fifth preset speed are set to the same value and are preset values; the second preset speed and the seventh preset speed are determined according to the freezing startup point temperature and the freezing shutdown point temperature and are preset values, and the two are the same. The fourth preset speed and the sixth preset speed are determined according to the refrigeration startup point temperature and the freezing shutdown point temperature and are preset values, and the two are the same. The first operating speed is the speed of the refrigerating fan when the temperature of the refrigerating compartment is lower than the refrigeration startup point temperature, so it is less than the fourth preset speed and the sixth preset speed, that is, by reducing the cooling speed of the refrigerating compartment to match the temperature reaching time of the freezing compartment to achieve the purpose of synchronous temperature reaching. The second operating speed is the speed of the freezing fan when the temperature of the freezing compartment is lower than the freezing startup point temperature, so it is less than the second preset speed and the seventh preset speed, that is, by reducing the cooling speed of the freezing compartment to match the temperature reaching time of the refrigerating compartment to achieve the purpose of synchronous temperature reaching.

[0088] As an alternative implementation of the above embodiment, the control method further includes:

[0089] Obtain the refrigerant distribution ratio of the liquid distributor;

[0090] Determine the first corresponding mode, the second corresponding mode, and the third corresponding mode according to the refrigerant distribution ratio.

[0091] In an embodiment, the refrigerant distribution ratio of the liquid distributor can be specifically set by the user or determined according to the ambient temperature. For example, to adapt to a high-temperature environment, more refrigerant is required for the refrigerating evaporator, while in a low-temperature environment, the amount of refrigerant required for the refrigerating evaporator becomes relatively less. Therefore, the refrigerant distribution ratio varies according to different ambient temperatures. The refrigerant distribution ratio of the liquid distributor can be adjusted by a movable sliding sleeve. During the specific implementation process, the refrigerant distribution ratio can determine the amount of refrigerant entering the refrigerating evaporator and the freezing evaporator. Different amounts of refrigerant will result in different refrigerating capacities. Therefore, in the embodiment, the first corresponding mode, the second corresponding mode, and the third corresponding mode are set to match the refrigerant distribution ratio, so as to adjust the speeds of the compressor, the freezing fan, and the refrigerating fan under different refrigerant distribution ratios, so that when the temperature in the refrigerating compartment is reduced to the refrigerating shutdown point temperature and the temperature in the freezing compartment is reduced to the freezing shutdown point temperature, the compressor, the freezing fan, and the refrigerating fan stop running synchronously.

[0092] In an embodiment, the refrigerant distribution ratio is defined as the amount of refrigerant obtained by the refrigerating evaporator and the amount of refrigerant obtained by the freezing evaporator. In some embodiments, the refrigerant distribution ratio includes a first refrigerant distribution ratio and a second refrigerant distribution ratio, and the first refrigerant distribution ratio and the second refrigerant distribution ratio correspond to high temperature and low temperature respectively. The first refrigerant distribution ratio is greater than the second refrigerant distribution ratio.

[0093] For example, in some embodiments, the first corresponding mode includes a seventh sub-corresponding mode and an eighth sub-corresponding mode, which correspond to the first refrigerant distribution ratio and the second refrigerant distribution ratio respectively. Compared with the eighth sub-corresponding mode, the seventh sub-corresponding mode has less refrigerant in the freezing evaporator. Therefore, in order to reach the temperature synchronously, the speed of the freezing fan in the seventh sub-corresponding mode is higher than that in the eighth sub-corresponding mode.

[0094] For example, in some embodiments, the second corresponding mode includes a ninth sub-corresponding mode and a tenth sub-corresponding mode, which correspond to the first refrigerant distribution ratio and the second refrigerant distribution ratio respectively. Compared with the tenth sub-corresponding mode, the ninth sub-corresponding mode has more refrigerant in the refrigerating evaporator. Therefore, in order to reach the temperature synchronously, the speed of the refrigerating fan in the ninth sub-corresponding mode is lower than that in the tenth sub-corresponding mode.

[0095] For example, in some embodiments, the third corresponding mode includes an eleventh sub - corresponding mode and a twelfth sub - corresponding mode, corresponding to a first refrigerant distribution ratio and a second refrigerant distribution ratio respectively. Compared with the twelfth sub - corresponding mode, the eleventh sub - corresponding mode has more refrigerant in the refrigerating evaporator. Therefore, in order to achieve temperature synchronization, the rotational speed of the refrigerating fan in the eleventh sub - corresponding mode is lower than that in the twelfth sub - corresponding mode.

[0096] As an alternative implementation of the above - mentioned embodiment, the control method further includes:

[0097] Obtain the refrigeration gear of the refrigeration system;

[0098] Determine the first corresponding mode, the second corresponding mode and the third corresponding mode according to the refrigeration gear.

[0099] In an embodiment, the refrigeration gear is set by the user. Different refrigeration gears result in different refrigeration efficiencies of the refrigeration system. Therefore, in order to adapt to the refrigeration requirements set by the user, the first corresponding mode, the second corresponding mode and the third corresponding mode change according to the refrigeration gear.

[0100] For example, the first corresponding mode includes a first sub - corresponding mode and a second sub - corresponding mode, corresponding to a low - grade and a high - grade respectively. The rotational speeds of the compressor, the freezing fan and the refrigerating fan in the first sub - corresponding mode are lower than those in the second sub - corresponding mode.

[0101] For example, the second corresponding mode includes a third sub - corresponding mode and a fourth sub - corresponding mode, corresponding to a low - grade and a high - grade respectively. The rotational speeds of the compressor, the freezing fan and the refrigerating fan in the third sub - corresponding mode are lower than those in the fourth sub - corresponding mode.

[0102] For example, the third corresponding mode includes a fifth sub - corresponding mode and a sixth sub - corresponding mode, corresponding to a low - grade and a high - grade respectively. The rotational speeds of the compressor, the freezing fan and the refrigerating fan in the fifth sub - corresponding mode are lower than those in the sixth sub - corresponding mode.

[0103] In the above - mentioned embodiments, the specific values of the rotational speeds of the compressor, the freezing fan and the refrigerating fan are not specifically limited, and the implementer makes specific settings according to the performance of the refrigeration system and the refrigeration requirements of the dual - system refrigerator.

[0104] As an alternative implementation of the above embodiments, the control method further includes: when the temperature in the refrigerated compartment drops to the refrigerated shutdown point temperature and the temperature in the frozen compartment drops to the frozen shutdown point temperature, controlling the compressor, the frozen air blower, and the refrigerated air blower to stop. In the technical solution of the embodiments of the present application, by correspondingly setting the modes of the compressor, the frozen air blower, and the refrigerated air blower under different operating conditions of reaching the temperature and starting up, so that the refrigerated compartment and the frozen compartment can simultaneously meet the refrigeration requirements, and then when the temperature in the refrigerated compartment drops to the refrigerated shutdown point temperature and the temperature in the frozen compartment drops to the frozen shutdown point temperature, controlling the compressor, the frozen air blower, and the refrigerated air blower to stop, completing a refrigeration cycle.

[0105] To better implement the control method of the refrigeration system in the embodiments of the present application, on the basis of the control method of the refrigeration system, an embodiment of the present application also provides a control device for a refrigeration system, as Figure 7 shown, the control device for the refrigeration system includes:

[0106] An acquisition module 01, when the compressor stops, acquires the first real-time temperature of the refrigerated compartment and the second real-time temperature of the frozen compartment; wherein, the refrigerated air blower is configured to provide the cold quantity of the refrigerated evaporator to the refrigerated compartment, and the frozen air blower is configured to provide the cold quantity of the frozen evaporator to the frozen compartment;

[0107] A control module 02, if the second real-time temperature reaches the frozen startup point temperature and the first real-time temperature does not reach the refrigerated startup point temperature, controls the compressor, the frozen air blower, and the refrigerated air blower to operate according to a first corresponding mode;

[0108] The control module 02, if the first real-time temperature reaches the refrigerated startup point temperature and the second real-time temperature does not reach the frozen startup point temperature, controls the compressor, the frozen air blower, and the refrigerated air blower to operate according to a second corresponding mode;

[0109] The control module 02, if the first real-time temperature reaches the refrigerated startup point temperature and at the same time the second real-time temperature reaches the frozen startup point temperature, controls the compressor, the frozen air blower, and the refrigerated air blower to operate according to a third corresponding mode;

[0110] Wherein, the first corresponding mode, the second corresponding mode, and the third corresponding mode are used to reduce the temperature in the refrigerated compartment to the refrigerated shutdown point temperature while reducing the temperature in the frozen compartment to the frozen shutdown point temperature.

[0111] An embodiment of the present application also provides a control system for a refrigeration system, including: one or more processors; a memory; and one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processors to implement the control method of the refrigeration system as described above.

[0112] Generally, the control system of the refrigeration system includes: at least one processor, at least one memory, and a control program of the control system of the refrigeration system stored on the memory and operable on the processor. The control program of the control system of the refrigeration system is configured to implement the steps of the control method as described above.

[0113] The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor for processing data in the wake state, also known as the CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. The processor may also include an AI (Artificial Intelligence) processor, which is used to process the operations of the control method of the control system of the refrigeration system, so that the control method model of the control system of the refrigeration system can be autonomously trained and learned to improve efficiency and accuracy.

[0114] The memory may include one or more computer-readable storage media, and the computer-readable storage media may be non-transitory. The memory may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices and flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one instruction, and the at least one instruction is used to be executed by the processor to implement the control method of the refrigeration system provided in the method embodiment of the present application:

[0115] When the compressor stops, obtain the first real-time temperature of the refrigerated compartment and the second real-time temperature of the frozen compartment; wherein, the refrigeration fan is configured to provide the cold quantity of the refrigeration evaporator to the refrigerated compartment, and the freezing fan is configured to provide the cold quantity of the freezing evaporator to the frozen compartment;

[0116] If the second real-time temperature reaches the freezing start-up point temperature and the first real-time temperature does not reach the refrigeration start-up point temperature, then control the compressor, the freezing fan and the refrigeration fan to operate according to the first corresponding mode;

[0117] If the first real-time temperature reaches the refrigeration start-up point temperature and the second real-time temperature does not reach the freezing start-up point temperature, then control the compressor, the freezing fan and the refrigeration fan to operate according to the second corresponding mode;

[0118] If the first real-time temperature reaches the refrigeration start-up point temperature and at the same time the second real-time temperature reaches the freezing start-up point temperature, then control the compressor, the freezing fan and the refrigeration fan to operate according to the third corresponding mode;

[0119] Wherein, the first corresponding mode, the second corresponding mode and the third corresponding mode are used to reduce the temperature in the refrigerated compartment to the refrigeration shutdown point temperature while reducing the temperature in the frozen compartment to the freezing shutdown point temperature.

[0120] Optionally, if the second real-time temperature reaches the freezing start-up point temperature and the first real-time temperature does not reach the refrigeration start-up point temperature, then controlling the compressor, the freezing fan and the refrigeration fan to operate according to the first corresponding mode includes:

[0121] Obtain the first temperature difference between the first real-time temperature and the refrigeration shutdown point temperature;

[0122] Determine the first operating speed of the refrigeration fan according to the first temperature difference;

[0123] Control the compressor to operate at a first preset speed, control the freezing fan to operate at a second preset speed, and control the refrigeration fan to operate at the first operating speed.

[0124] Optionally, if the first real-time temperature reaches the refrigeration start-up point temperature and the second real-time temperature does not reach the freezing start-up point temperature, then controlling the compressor, the freezing fan and the refrigeration fan to operate according to the second corresponding mode includes:

[0125] Obtain the second temperature difference between the second real-time temperature and the freezing shutdown point temperature;

[0126] Determine the second operating speed of the refrigeration fan according to the second temperature difference;

[0127] Control the compressor to operate at a third preset speed, control the refrigerating fan to operate at a fourth preset speed, and control the refrigeration fan to operate at the second operating speed.

[0128] Optionally, if the first real-time temperature reaches the refrigeration start point temperature and the second real-time temperature reaches the freezing start point temperature, then controlling the compressor, the refrigeration fan and the refrigerating fan to operate in a third corresponding mode includes:

[0129] Control the compressor to operate at a fifth preset speed, control the refrigerating fan to operate at a sixth preset speed, and control the refrigeration fan to operate at the seventh preset speed.

[0130] Optionally, the control method further includes:

[0131] Obtain the refrigerant distribution ratio of the distributor;

[0132] Determine the first corresponding mode, the second corresponding mode and the third corresponding mode according to the refrigerant distribution ratio.

[0133] Optionally, the control method further includes:

[0134] Obtain the refrigeration gear of the refrigeration system;

[0135] Determine the first corresponding mode, the second corresponding mode and the third corresponding mode according to the refrigeration gear.

[0136] Optionally, the control method further includes:

[0137] When the temperature in the refrigerated compartment drops to the refrigeration shutdown point temperature and the temperature in the freezer compartment drops to the freezing shutdown point temperature, control the compressor, the refrigeration fan and the refrigerating fan to stop.

[0138] The control method, device, refrigerator and computer-readable storage medium of the refrigeration system provided by the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A control method for a refrigeration system, characterized in that, The refrigeration system includes a compressor, a condenser, a liquid distributor, a refrigerated evaporator, a frozen evaporator, a refrigerated air blower, and a frozen air blower; the compressor, the condenser, and the liquid distributor are connected in sequence, the liquid distributor is connected to the refrigerated evaporator and the frozen evaporator, and enables the amount of refrigerant distributed to the refrigerated evaporator to be greater than the amount of refrigerant distributed to the frozen evaporator, and the refrigerated evaporator and the frozen evaporator are connected to the compressor; the control method includes: When the compressor stops operating, obtain the first real-time temperature of the refrigerated compartment and the second real-time temperature of the frozen compartment; wherein, the refrigerated air blower is configured to provide the cold quantity of the refrigerated evaporator to the refrigerated compartment, and the frozen air blower is configured to provide the cold quantity of the frozen evaporator to the frozen compartment; If the second real-time temperature reaches the frozen start-up point temperature and the first real-time temperature does not reach the refrigerated start-up point temperature, then control the compressor, the frozen air blower, and the refrigerated air blower to operate in a first corresponding mode; If the first real-time temperature reaches the refrigerated start-up point temperature and the second real-time temperature does not reach the frozen start-up point temperature, then control the compressor, the frozen air blower, and the refrigerated air blower to operate in a second corresponding mode; If the first real-time temperature reaches the refrigerated start-up point temperature and at the same time the second real-time temperature reaches the frozen start-up point temperature, then control the compressor, the frozen air blower, and the refrigerated air blower to operate in a third corresponding mode; Wherein, the first corresponding mode, the second corresponding mode, and the third corresponding mode are used to reduce the temperature in the refrigerated compartment to the refrigerated shutdown point temperature while reducing the temperature in the frozen compartment to the frozen shutdown point temperature.

2. The control method according to claim 1, wherein The step that if the second real-time temperature reaches the frozen start-up point temperature and the first real-time temperature does not reach the refrigerated start-up point temperature, then control the compressor, the frozen air blower, and the refrigerated air blower to operate in a first corresponding mode includes: Obtain the first temperature difference between the first real-time temperature and the refrigerated shutdown point temperature; Determine the first operating speed of the refrigerated air blower according to the first temperature difference; Control the compressor to operate at a first preset speed, control the frozen air blower to operate at a second preset speed, and control the refrigerated air blower to operate at the first operating speed.

3. The control method according to claim 1, wherein The step that if the first real-time temperature reaches the refrigerated start-up point temperature and the second real-time temperature does not reach the frozen start-up point temperature, then control the compressor, the frozen air blower, and the refrigerated air blower to operate in a second corresponding mode includes: Obtain the second temperature difference between the second real-time temperature and the frozen shutdown point temperature; Determine the second operating speed of the frozen air blower according to the second temperature difference; Control the compressor to operate at a third preset speed, control the refrigerated air blower to operate at a fourth preset speed, and control the frozen air blower to operate at the second operating speed.

4. The control method according to claim 1, characterized in that The step that if the first real-time temperature reaches the refrigerated start-up point temperature and the second real-time temperature reaches the frozen start-up point temperature, then control the compressor, the frozen air blower, and the refrigerated air blower to operate in a third corresponding mode includes: Control the compressor to operate at a fifth preset speed, control the refrigerating fan to operate at a sixth preset speed, and control the freezing fan to operate at a seventh preset speed.

5. The control method according to claim 1, wherein The control method further includes: Obtain the refrigerant distribution ratio of the liquid distributor; Determine the first corresponding mode, the second corresponding mode, and the third corresponding mode according to the refrigerant distribution ratio.

6. The control method according to claim 1, characterized in that, The control method further includes: Obtain the refrigeration gear of the refrigeration system; Determine the first corresponding mode, the second corresponding mode, and the third corresponding mode according to the refrigeration gear.

7. The control method according to claim 1, wherein The control method further includes: When the temperature in the refrigerating compartment drops to the refrigerating shutdown point temperature and the temperature in the freezing compartment drops to the freezing shutdown point temperature, control the compressor, the freezing fan, and the refrigerating fan to stop.

8. A control device for a refrigeration system, characterized in that, The refrigeration system includes a compressor, a condenser, a liquid distributor, a refrigerating evaporator, a freezing evaporator, a refrigerating fan, and a freezing fan; the compressor, the condenser, and the liquid distributor are connected in sequence, the liquid distributor communicates with the refrigerating evaporator and the freezing evaporator, and enables the amount of refrigerant distributed to the refrigerating evaporator to be greater than the amount of refrigerant distributed to the freezing evaporator, and the refrigerating evaporator and the freezing evaporator are connected to the compressor; The control device includes: An acquisition module that, when the compressor stops, acquires the first real-time temperature of the refrigerating compartment and the second real-time temperature of the freezing compartment; wherein, the refrigerating fan is configured to provide the cold quantity of the refrigerating evaporator to the refrigerating compartment, and the freezing fan is configured to provide the cold quantity of the freezing evaporator to the freezing compartment; A control module for, if the second real-time temperature reaches the freezing startup point temperature and the first real-time temperature does not reach the refrigerating startup point temperature, controlling the compressor, the freezing fan, and the refrigerating fan to operate in a first corresponding mode; The control module for, if the first real-time temperature reaches the refrigerating startup point temperature and the second real-time temperature does not reach the freezing startup point temperature, controlling the compressor, the freezing fan, and the refrigerating fan to operate in a second corresponding mode; The control module for, if the first real-time temperature reaches the refrigerating startup point temperature and at the same time the second real-time temperature reaches the freezing startup point temperature, controlling the compressor, the freezing fan, and the refrigerating fan to operate in a third corresponding mode; Wherein, the first corresponding mode, the second corresponding mode, and the third corresponding mode are used to reduce the temperature in the refrigerating compartment to the refrigerating shutdown point temperature while reducing the temperature in the freezing compartment to the freezing shutdown point temperature.

9. A refrigerator, characterized in that, The refrigerator includes a controller that executes to implement the steps in the control method of the refrigeration system according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the control method of the refrigeration system according to any one of claims 1 to 7.