Refrigerating system and refrigerating system control method

Abstract

The invention provides a refrigerating system and a refrigerating system control method. The refrigerating system comprises a compressor, a freezing condenser, a refrigeration condenser, a refrigeration evaporator, a freezing evaporator, a first throttling valve and a second throttling valve. The first output end of the compressor is connected with the input end of the refrigeration condenser, the second output end of the compressor is connected with the input end of the freezing condenser, the output end of the refrigeration condenser is connected with the input end of the refrigeration evaporator through the first throttling valve, and the output end of the refrigeration evaporator is connected with the first input end of the compressor. The output end of the freezing condenser is connected with the input end of the freezing evaporator through a second throttling valve, and the output end of the freezing evaporator is connected with the second input end of the compressor. The refrigerating system further comprises a first cooling fan and a second cooling fan. A first cooling fan is arranged at the refrigerating condenser, a second cooling fan is arranged at the freezing condenser, the first cooling fan is close to the first air inlet, and the second cooling fan is close to the second air inlet.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, and in particular to a refrigeration system and a refrigeration system control method. Background Art

[0002] As a fresh-keeping device, refrigerators have high requirements for temperature control. In order to meet the needs of different food ingredients, refrigerators are generally equipped with two storage spaces: a refrigerator and a freezer. Among them, the temperature in the freezer is lower, mainly used to freeze and preserve food ingredients; the temperature in the refrigerator is slightly higher than that in the freezer, and is mainly used to preserve food ingredients.

[0003] In the prior art, the refrigerator and freezer generally share an evaporator. When the refrigerator is refrigerated, air needs to be drawn from the evaporator chamber in the freezer to maintain the temperature in the refrigerator at a set temperature between 0°C and 10°C. The temperature of the air introduced from the evaporator chamber into the refrigerator is below -17°C, and the temperature difference between the temperature in the air duct and the temperature in the refrigerator is large. When the refrigerator reaches the preset temperature, refrigeration stops, and no cold air is introduced into the refrigerator. The temperature in the refrigerator continues to rise, and refrigeration is performed again when it rises to the preset control temperature.

[0004] However, this method of sharing an evaporator between the refrigerator and the freezer is prone to cause large temperature fluctuations in the refrigerator, which is not conducive to fresh-keeping storage, and it is easy for food in different temperature zones to transfer odors. Summary of the invention

[0005] The present application provides a refrigeration system and a refrigeration system control method to solve the problem that in the prior art, a refrigerator and a freezer share an evaporator, which easily causes large temperature fluctuations in the refrigerator and is not conducive to fresh-keeping storage, and easily causes the problem of odor transfer between foods in different temperature zones.

[0006] In a first aspect, the present application provides a refrigeration system, comprising: a compressor, a freezing condenser, a refrigerating condenser, a refrigerating evaporator, a freezing evaporator, a first throttle valve, and a second throttle valve; The first output end of the compressor is connected to the input end of the refrigerating condenser, the second output end of the compressor is connected to the input end of the freezing condenser, the output end of the refrigerating condenser is connected to the input end of the refrigerating evaporator through the first throttle valve, the output end of the refrigerating evaporator is connected to the first input end of the compressor, the output end of the freezing condenser is connected to the input end of the freezing evaporator through the second throttle valve, and the output end of the freezing evaporator is connected to the second input end of the compressor; Wherein, the refrigeration system further comprises: a first heat dissipation fan and a second heat dissipation fan; A first cooling fan is arranged at the refrigerated condenser, and a second cooling fan is arranged at the frozen condenser, wherein the first cooling fan is close to a first air inlet, and the first air inlet is arranged below the refrigerated condenser, and the second cooling fan is close to a second air inlet, and the second air inlet is arranged on the left side of the refrigerated condenser and the frozen condenser.

[0007] In a possible implementation, the refrigeration system further includes: a medium storage tank, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a first regulating valve, and a second regulating valve; The output end of the refrigerated evaporator is connected to the input end of the media storage tank through the first one-way valve, the output end of the frozen evaporator is connected to the input end of the media storage tank through the second one-way valve, the output end of the refrigerated condenser is connected to the input end of the media storage tank through the third one-way valve, the output end of the frozen condenser is connected to the input end of the media storage tank through the fourth one-way valve, the output end of the media storage tank is connected to the first input end of the compressor through the first regulating valve, and the output end of the media storage tank is also connected to the second input end of the compressor through the second regulating valve.

[0008] In a possible implementation, the compressor includes: a main compressor and a secondary compressor; The first input end, the second input end, the first output end and the second output end of the compressor are arranged on the main compressor, the output end of the main compressor is connected to the input end of the auxiliary compressor, and the output end of the auxiliary compressor is connected to the input end of the refrigeration condenser.

[0009] In a second aspect, the present application provides a refrigeration system control method, the refrigeration system comprising: a compressor, a freezing condenser, a refrigeration condenser, a refrigeration evaporator, a freezing evaporator, a first throttle valve and a second throttle valve, the method comprising: When the refrigeration system is in operation, controlling the compressor to compress the refrigerant into a high-temperature and high-pressure state; The refrigerant compressed into a high-temperature and high-pressure state is respectively input into the refrigeration condenser and the freezing condenser for cooling; The refrigerant after the cooling treatment of the refrigeration condenser is throttled by the first throttle valve and then input into the refrigeration evaporator to evaporate and absorb heat, and the refrigerant after the cooling treatment of the freezing condenser is throttled by the second throttle valve and then input into the freezing evaporator to evaporate and absorb heat; Recovering the refrigerant after evaporation of the refrigeration evaporator and the refrigerant after evaporation of the freezing evaporator to the compressor respectively; Wherein, the refrigeration system further comprises: a first heat dissipation fan and a second heat dissipation fan; After controlling the first cooling fan to send external ambient temperature air to the refrigeration condenser for heat exchange, controlling the second cooling fan to send the air after heat exchange to the freezing condenser to absorb the heat released by the freezing condenser.

[0010] In a possible implementation, the refrigeration system further includes: a media storage tank and a regulating valve corresponding to the media storage tank, and the method further includes: Obtaining temperature requirements of the refrigeration chamber and the freezer chamber corresponding to the refrigeration system; The refrigerant flow in the refrigeration system is regulated according to the medium storage tank and the regulating valve corresponding to the medium storage tank, so that the refrigerant flow in the refrigeration system matches the temperature requirement.

[0011] In a possible implementation, regulating the refrigerant flow in the refrigeration system according to the media storage tank and the regulating valve corresponding to the media storage tank includes: When the temperature requirement is a shallow low temperature requirement, the regulating valves corresponding to the refrigerating evaporator and the freezing evaporator are controlled to open, so that part of the refrigerant in the refrigerating evaporator and the freezing evaporator enters the medium storage tank; When the temperature requirement is in a controlled cooling state, the regulating valves corresponding to the freezing condenser and the refrigerating condenser are controlled to open, so that part of the refrigerant in the freezing condenser and the refrigerating condenser enters the medium storage tank; When the temperature requirement is a relatively low temperature requirement, the output regulating valve corresponding to the medium storage tank is controlled to open so that the refrigerant in the medium storage tank enters the compressor.

[0012] In a possible implementation, the compressor includes: a main compressor and a sub-compressor, and the method further includes: When the temperature requirement is an ultra-low temperature requirement, starting the auxiliary compressor; Controlling the output regulating valve corresponding to the media storage tank to open, so that the refrigerant in the media storage tank enters the main compressor, and the main compressor performs a first-stage compression on the refrigerant; Inputting the refrigerant after primary compression into the auxiliary compressor, and the auxiliary compressor performs secondary compression; The refrigerant after secondary compression is input into the refrigeration condenser.

[0013] In a third aspect, the present application provides a refrigeration system control device, the refrigeration system comprising: a compressor, a freezing condenser, a refrigeration condenser, a refrigeration evaporator, a freezing evaporator, a first throttle valve, a second throttle valve, a first cooling fan and a second cooling fan, the device comprising: A first control module, used for controlling the compressor to compress the refrigerant into a high-temperature and high-pressure state when the refrigeration system is running; A first input module is used to input the refrigerant compressed into a high-temperature and high-pressure state into the refrigeration condenser and the freezing condenser for cooling treatment; A second input module is used to input the refrigerant after the cooling treatment of the refrigeration condenser into the refrigeration evaporator for evaporation and heat absorption after throttling by the first throttle valve, and to input the refrigerant after the cooling treatment of the freezing condenser into the freezing evaporator for evaporation and heat absorption after throttling by the second throttle valve; A recovery module, used for recovering the refrigerant after evaporation of the refrigeration evaporator and the refrigerant after evaporation of the freezing evaporator to the compressor respectively; The second control module is used to control the first cooling fan to send the external ambient temperature air to the refrigeration condenser for heat exchange, and then control the second cooling fan to send the air after heat exchange to the freezing condenser to absorb the heat released by the freezing condenser.

[0014] In a possible implementation, the refrigeration system further includes: a medium storage tank and a regulating valve corresponding to the medium storage tank, and the device further includes a regulating module for: Obtaining temperature requirements of the refrigeration chamber and the freezer chamber corresponding to the refrigeration system; The refrigerant flow in the refrigeration system is regulated according to the medium storage tank and the regulating valve corresponding to the medium storage tank, so that the refrigerant flow in the refrigeration system matches the temperature requirement.

[0015] In a possible implementation manner, the adjustment module is further used to: When the temperature requirement is a shallow low temperature requirement, the regulating valves corresponding to the refrigerating evaporator and the freezing evaporator are controlled to open, so that part of the refrigerant in the refrigerating evaporator and the freezing evaporator enters the medium storage tank; When the temperature requirement is in a controlled cooling state, the regulating valves corresponding to the freezing condenser and the refrigerating condenser are controlled to open, so that part of the refrigerant in the freezing condenser and the refrigerating condenser enters the medium storage tank; When the temperature requirement is a relatively low temperature requirement, the output regulating valve corresponding to the medium storage tank is controlled to open so that the refrigerant in the medium storage tank enters the compressor.

[0016] In a possible implementation, the compressor includes: a main compressor and a secondary compressor, and the device also includes a secondary compression module for: When the temperature requirement is an ultra-low temperature requirement, starting the auxiliary compressor; Controlling the output regulating valve corresponding to the media storage tank to open, so that the refrigerant in the media storage tank enters the main compressor, and the main compressor performs a first-stage compression on the refrigerant; Inputting the refrigerant after primary compression into the auxiliary compressor, and the auxiliary compressor performs secondary compression; The refrigerant after secondary compression is input into the refrigeration condenser.

[0017] In a fourth aspect, the present application provides a device, comprising: a processor and a memory, wherein the processor is used to execute a refrigeration system control program stored in the memory to implement the refrigeration system control method described in any one of the second aspects.

[0018] In a fifth aspect, the present application provides a storage medium storing one or more programs, and the one or more programs can be executed by one or more processors to implement the refrigeration system control method described in any one of the second aspects.

[0019] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the system provided by the embodiment of the present application includes: a compressor, a freezing condenser, a refrigerating condenser, a refrigerating evaporator, a freezing evaporator, a first throttle valve and a second throttle valve; the first output end of the compressor is connected to the input end of the refrigerating condenser, the second output end of the compressor is connected to the input end of the freezing condenser, the output end of the refrigerating condenser is connected to the input end of the refrigerating evaporator through the first throttle valve, the output end of the refrigerating evaporator is connected to the first input end of the compressor, the output end of the freezing condenser is connected to the input end of the freezing evaporator through the second throttle valve, and the output end of the freezing evaporator is connected to the second input end of the compressor. In this way, the temperature of different refrigeration demand areas of the refrigerator can be independently controlled through a dual-circulation system, thereby avoiding large temperature fluctuations in the refrigerator that are not conducive to fresh-keeping storage, as well as the problem of odor contamination between foods in different temperature areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 A schematic diagram of the structure of a refrigeration system provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a condenser heat removal system provided in an embodiment of the present application; Figure 3 A flow chart of an embodiment of a refrigeration system control method provided in an embodiment of the present application; Figure 4 A block diagram of an embodiment of a refrigeration system control device provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application; Illustration Description: Among them, 11 is the main compressor, 12 is the auxiliary compressor, 21 is the refrigeration condenser, 22 is the freezing condenser, 31 is the first throttle valve, 32 is the second throttle valve, 41 is the refrigeration evaporator, 42 is the freezing evaporator, 51 is the first regulating valve, 52 is the second regulating valve, 61 is the first one-way valve, 62 is the second one-way valve, 63 is the third one-way valve, 64 is the fourth one-way valve, 71 is the storage tank, 81 is the first air inlet, 82 is the second air inlet, 91 is the first air outlet, 92 is the second air outlet, 101 is the first cooling fan, and 102 is the first cooling fan. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0026] In order to solve the technical problems in the prior art that the refrigerator and freezer share one evaporator, which easily causes large temperature fluctuations in the refrigerator and is not conducive to fresh-keeping storage, and easily causes the odor of food in different temperature zones to spread, the present application provides a refrigeration system control method that can achieve independent temperature control of different refrigeration demand areas of the refrigerator, thereby avoiding large temperature fluctuations in the refrigerator and being not conducive to fresh-keeping storage, as well as the problem of odor of food in different temperature zones.

[0027] Figure 1 This is a schematic diagram of a refrigeration system provided in an embodiment of the present application. Figure 1 As shown, the refrigeration system includes: a compressor, a freezing condenser 22, a refrigerated condenser 21, a refrigerated evaporator 41, a freezing evaporator 42, a first throttle valve 31 and a second throttle valve 32; the first output end of the compressor is connected to the input end of the refrigerated condenser 21, the second output end of the compressor is connected to the input end of the freezing condenser 22, the output end of the refrigerated condenser 21 is connected to the input end of the refrigerated evaporator 41 through the first throttle valve 31, the output end of the refrigerated evaporator 41 is connected to the first input end of the compressor, the output end of the freezing condenser 22 is connected to the input end of the freezing evaporator 42 through the second throttle valve 32, and the output end of the freezing evaporator 42 is connected to the second input end of the compressor.

[0028] like Figure 1 As shown, the compressor, the refrigeration condenser 21, the first throttle valve 31 (i.e. Figure 1 The throttle valve 1 in the refrigeration evaporator 41 forms a refrigeration cycle. In the application, the refrigeration cycle is used to realize the refrigeration of the refrigeration area; the compressor, the refrigeration condenser 22, the second throttle valve 32 (i.e. Figure 1 The throttle valve 2) and the freezing evaporator 42 form another refrigeration cycle. In the application, the refrigeration cycle is used to realize the refrigeration of the freezing zone. Thus, a dual-circulation system is realized. The two refrigeration cycles do not interfere with each other, and the temperature of the refrigerator with different refrigeration demand areas can be independently controlled, thereby avoiding large temperature fluctuations in the refrigerator compartment that are not conducive to fresh storage, and the problem of odor transfer between foods in different temperature zones.

[0029] Furthermore, the refrigeration system also includes: a first cooling fan 101 and a second cooling fan 102; the first cooling fan 101 is arranged at the refrigerated condenser 21, and the second cooling fan 102 is arranged at the frozen condenser 22, wherein the first cooling fan 101 is close to the first air inlet 81, and the first air inlet 81 is arranged below the refrigerated condenser 21, and the second cooling fan 102 is close to the second air inlet 82, and the second air inlet 82 is arranged on the left side of the refrigerated condenser 21 and the frozen condenser 22.

[0030] Figure 2 The following is a diagram of the condenser heat rejection system: Figure 2 As shown, at the first air inlet 81 (i.e. Figure 2 A first cooling fan 101 is provided between the air inlet 82 (i.e., the air inlet at the middle and lower side) and the refrigeration condenser 21. Figure 2 A second heat dissipation fan 102 is arranged between the air inlet on the left side in the middle) and the freezing condenser 22, and the second heat dissipation fan 102 is arranged between the refrigeration condenser 21 and the freezing condenser 22.

[0031] Through this system, the ambient air first absorbs the heat released by the refrigeration condenser 21 through the first air inlet 81. Since the required temperature of the freezer compartment is lower than that of the refrigerator compartment, the heat exchange of the freezing condenser 22 accounts for a larger proportion. In order to make full use of the air for heat exchange, the air after heat exchange from the refrigeration condenser 21 is mixed with part of the ambient air entering from the first air inlet 81, further absorbing the heat released by the freezing condenser 22, and finally releasing it through the first air outlet 91 and the second air outlet 92. In this way, the exhaust volume of the refrigeration condenser 21 can be effectively utilized, the heat removal energy consumption of the freezing area can be reduced, and the heat removal effect of the freezing area can be enhanced, so as to achieve better energy saving effect of the refrigerator condensation heat removal system.

[0032] The system provided by the embodiment of the present application includes: a compressor, a freezing condenser 22, a refrigerating condenser 21, a refrigerating evaporator 41, a freezing evaporator 42, a first throttle valve 31 and a second throttle valve 32; the first output end of the compressor is connected to the input end of the refrigerating condenser 21, the second output end of the compressor is connected to the input end of the freezing condenser 22, the output end of the refrigerating condenser 21 is connected to the input end of the refrigerating evaporator 41 through the first throttle valve 31, the output end of the refrigerating evaporator 41 is connected to the first input end of the compressor, the output end of the freezing condenser 22 is connected to the input end of the freezing evaporator 42 through the second throttle valve 32, and the output end of the freezing evaporator 42 is connected to the second input end of the compressor. In this way, the temperature of different refrigeration demand areas of the refrigerator can be independently controlled through the dual-circulation system, thereby avoiding large temperature fluctuations in the refrigerating chamber that are not conducive to fresh-keeping storage, as well as the problem of flavor contamination between foods in different temperature areas.

[0033] In another embodiment of the present application, the refrigeration system further includes: a media storage tank 71, a first one-way valve 61, a second one-way valve 62, a third one-way valve 63, a fourth one-way valve 64, a first regulating valve 51 and a second regulating valve 52; the output end of the refrigerated evaporator 41 is connected to the input end of the media storage tank 71 through the first one-way valve 61, the output end of the frozen evaporator 42 is connected to the input end of the media storage tank 71 through the second one-way valve 62, the output end of the refrigerated condenser 21 is connected to the input end of the media storage tank 71 through the third one-way valve 63, the output end of the frozen condenser 22 is connected to the input end of the media storage tank 71 through the fourth one-way valve 64, the output end of the media storage tank 71 is connected to the first input end of the compressor through the first regulating valve 51, and the output end of the media storage tank 71 is also connected to the second input end of the compressor through the second regulating valve 52.

[0034] like Figure 1 As shown, the refrigeration evaporator 41 passes through the first one-way valve 61 (i.e. Figure 1 The one-way valve 1 in the middle is connected to the input end of the medium storage tank 71, and the refrigeration evaporator 42 is connected to the input end of the medium storage tank 71 through the second one-way valve 62 (i.e. Figure 1 The one-way valve 2 in the refrigeration condenser 21 is connected to the input end of the medium storage tank 71, and the refrigeration condenser 21 is connected to the input end of the medium storage tank 71 through the third one-way valve 63 (i.e. Figure 1 The one-way valve 3 in the middle is connected to the input end of the medium storage tank 71, and the refrigeration condenser 22 is connected to the input end of the medium storage tank 71 through the fourth one-way valve 64 (i.e. Figure 1 The one-way valve 4) in the refrigeration system is connected to the input end of the storage tank 71. In this way, when the refrigerant in the refrigeration system is too much, the one-way valves corresponding to each evaporator and condenser can be opened to allow the refrigerant in the evaporator and condenser to enter the storage tank 71, thereby reducing the refrigerant in the refrigeration system.

[0035] Furthermore, the output end of the medium storage tank 71 is connected to the first regulating valve 51 (i.e. Figure 1 The regulating valve 1 in the embodiment and the second regulating valve 52 (i.e. Figure 1 The regulating valve 2) in the refrigeration system is connected to the compressor. In this way, when the refrigerant in the refrigeration system is low, the refrigerant can be added to the compressor by opening the regulating valve.

[0036] In this solution, by regulating and controlling the refrigerant flow path, the suction and exhaust pressures of the compressor can be prevented from being too high or too low, thereby avoiding damage to the compressor due to compressor overload and overheating, thereby maintaining the refrigeration system to operate efficiently and stably.

[0037] In another embodiment of the present application, the compressor includes: a main compressor 11 and a main compressor 12; the first input end, the second input end, the first output end and the second output end of the compressor are arranged on the main compressor 11, the output end of the main compressor 11 is connected to the input end of the main compressor 12, and the output end of the main compressor 12 is connected to the input end of the refrigeration condenser 22.

[0038] like Figure 1 As shown, the compressor is composed of a main compressor 11 and a main compressor 12. The basic operation of the dual-circulation system can be supported by the main compressor 11. When the freezing chamber enters the ultra-low temperature condition, the main compressor 12 is started to perform two-stage compression on the refrigerant compressed by the main compressor 11. This avoids overload damage to the main compressor 11 caused by single-stage compression.

[0039] Figure 3 The flowchart of a refrigeration system control method provided in the embodiment of the present application. In one embodiment, the refrigeration system includes: a compressor, a freezing condenser 22, a refrigeration condenser 21, a refrigeration evaporator 41, a freezing evaporator 42, a first throttle valve 31, a second throttle valve 32, the first cooling fan 101 and the second cooling fan 102. Figure 3 As shown, the method comprises the following steps: Step 301: When the refrigeration system is running, control the compressor to compress the refrigerant into a high-temperature and high-pressure state; Step 302: The refrigerant compressed into a high-temperature and high-pressure state is respectively input into the refrigeration condenser and the freezing condenser for cooling; Step 303, the refrigerant after the cooling treatment of the refrigeration condenser is throttled by the first throttle valve and then input into the refrigeration evaporator to evaporate and absorb heat, and the refrigerant after the cooling treatment of the freezing condenser is throttled by the second throttle valve and then input into the freezing evaporator to evaporate and absorb heat; Step 304: Recover the refrigerant after evaporation of the refrigeration evaporator and the refrigerant after evaporation of the freezing evaporator to the compressor respectively.

[0040] Step 305: Control the first cooling fan to deliver the external ambient temperature air to the refrigeration condenser for heat exchange, and then control the second cooling fan to deliver the air after heat exchange to the freezing condenser to absorb the heat released by the freezing condenser.

[0041] For ease of understanding, steps 301 to 305 are described in a unified manner as follows: In the embodiment of the present application, the refrigeration cycle process is as follows: the refrigerant is compressed into a high temperature and high pressure state by the compressor, and then the refrigerant in the high temperature and high pressure state enters the refrigeration condenser 21 for cooling treatment, the temperature is reduced, and then after throttling by the first throttle valve 31, it enters the refrigeration evaporator 41 to evaporate and absorb heat, obtain cold, and the refrigerant after evaporation returns to the compressor to complete a refrigeration cycle. The freezing and refrigeration cycle process is as follows: the refrigerant is compressed into a high temperature and high pressure state by the compressor, and then the refrigerant in the high temperature and high pressure state enters the freezing condenser 22 for cooling treatment, the temperature is reduced, and then after throttling by the second throttle valve 32, it enters the freezing evaporator 42 to evaporate and absorb heat, obtain cold, and the refrigerant after evaporation returns to the compressor to complete a refrigeration cycle.

[0042] Furthermore, in the whole process, the first cooling fan 101 can be controlled to send the external ambient temperature air to the refrigeration condenser for heat exchange, and then the second cooling fan 102 can be controlled to send the heat exchanged air to the freezing condenser to further absorb the heat released by the freezing condenser, thereby achieving the goal of energy saving and consumption reduction.

[0043] The technical solution provided in the embodiment of the present application realizes independent temperature control of different refrigeration demand areas of the refrigerator through a dual-circulation system, thereby avoiding large temperature fluctuations in the refrigerator compartment that are not conducive to fresh-keeping storage, as well as the problem of odor transfer between foods in different temperature areas.

[0044] In another embodiment of the present application, the refrigeration system further includes: a storage tank 71 and a regulating valve corresponding to the storage tank 71, and the method further includes: obtaining the temperature requirements of the cold storage room and the freezer room corresponding to the refrigeration system; adjusting the refrigerant flow in the refrigeration system according to the storage tank 71 and the regulating valve corresponding to the storage tank 71, so that the refrigerant flow in the refrigeration system matches the temperature requirement.

[0045] Specifically, regulating the refrigerant flow in the refrigeration system according to the medium storage tank 71 and the regulating valve corresponding to the medium storage tank 71 may include the following steps: Step A1, when the temperature requirement is a shallow low temperature requirement, controlling the regulating valves corresponding to the refrigerating evaporator 41 and the freezing evaporator 42 to open, so that part of the refrigerant in the refrigerating evaporator 41 and the freezing evaporator 42 enters the medium storage tank 71; Step A2: when the temperature demand is in a controlled cooling state, control the regulating valves corresponding to the freezing condenser 22 and the refrigerating condenser 21 to open, so that part of the refrigerant in the freezing condenser 22 and the refrigerating condenser 21 enters the medium storage tank 71; Step A3: When the temperature requirement is a relatively low temperature requirement, the output regulating valve corresponding to the medium storage tank 71 is controlled to open so that the refrigerant in the medium storage tank 71 enters the compressor.

[0046] For ease of understanding, steps A1 to A3 are described in a unified manner as follows: In applications, the lower temperature requirement is generally -18°C; the shallow low temperature requirement is generally -10~0°C; the controlled temperature reduction state means that the freezer does not need to provide low temperature.

[0047] In this embodiment, the system will perform variable temperature control on the refrigeration area or the freezing area according to the temperature demand, and use the storage tank 71 to distribute the refrigerant flow to match the corresponding temperature range.

[0048] Specifically, if the refrigeration room or the freezer does not need a lower temperature but only needs a shallow low temperature, the system cycle does not need a large amount of refrigerant, and part of the refrigerant enters the storage tank 71 from the refrigeration evaporator 41 and the freezing evaporator 42 through the one-way regulating valve. Since the refrigeration room and the freezing room will not enter a lower temperature state at the same time, when the system is in a controlled temperature reduction state, the one-way valve 3 and the one-way valve 4 are opened to reduce the system refrigerant flow, and the refrigerant flows from the freezing condenser 22 and the refrigeration condenser 21 to the storage tank 71, and the storage tank 71 plays a role in pressure relief and gas storage. Under other working conditions, the one-way valve 3 and the one-way valve 4 are not opened. For the refrigeration cycle system, if the freezing room does not need a lower temperature but only needs a shallow low temperature, the system cycle does not need a large amount of refrigerant, and part of the refrigerant enters the storage tank 71 from the freezing evaporator 42 through the one-way regulating valve 2; when the freezing room needs to be controlled at a lower temperature, the system needs to replenish refrigerant, and the refrigerant is released from the storage tank 71, passes through the regulating valve, and enters the compressor.

[0049] Through the above solution, the refrigeration system can adjust the refrigerant flow between areas according to the operating status of different refrigeration areas of the refrigerator, and realize precise control of temperature changes and refrigerant distribution within the cross-temperature range.

[0050] In another embodiment of the present application, the compressor includes: a main compressor 11 and a main compressor 12, and the method further includes the following steps: Step B1, when the temperature requirement is an ultra-low temperature requirement, starting the main compressor 12; Step B2, controlling the output regulating valve corresponding to the storage tank 71 to open, so that the refrigerant in the storage tank 71 enters the main compressor 11, and the main compressor 11 performs a first-stage compression on the refrigerant; Step B3, inputting the refrigerant after the primary compression into the main compressor 12, and the main compressor 12 performs secondary compression; Step B4, inputting the refrigerant after secondary compression into the refrigeration condenser 22.

[0051] In applications, the ultra-low temperature requirement is generally below -25°C.

[0052] In the embodiment of the present application, when the freezer enters the ultra-low temperature working condition (i.e., the temperature requirement is an ultra-low temperature requirement), the refrigerant in the storage tank 71 will enter the main compressor 11 to supplement the refrigerant flow of the refrigeration cycle, and at the same time, the main compressor 12 is started to perform secondary compression on the refrigerant compressed by the main compressor 11. In this way, it is possible to avoid overload damage to the main compressor 11 caused by single-stage compression.

[0053] Figure 4 This is a block diagram of an embodiment of a refrigeration system control device provided in an embodiment of the present application. Figure 4 As shown, the device comprises: A first control module 41 is used to control the compressor to compress the refrigerant into a high-temperature and high-pressure state when the refrigeration system is running; The first input module 42 is used to input the refrigerant compressed into a high-temperature and high-pressure state into the refrigeration condenser and the freezing condenser for cooling; The second input module 43 is used to input the refrigerant after the cooling treatment of the refrigeration condenser into the refrigeration evaporator for evaporation and heat absorption after throttling by the first throttle valve, and to input the refrigerant after the cooling treatment of the freezing condenser into the freezing evaporator for evaporation and heat absorption after throttling by the second throttle valve; A recovery module 44, used for recovering the refrigerant after evaporation of the refrigeration evaporator and the refrigerant after evaporation of the freezing evaporator to the compressor respectively; The second control module 45 is used to control the first cooling fan to send the external ambient temperature air to the refrigeration condenser for heat exchange, and then control the second cooling fan to send the air after heat exchange to the freezing condenser to absorb the heat released by the freezing condenser.

[0054] In a possible implementation, the refrigeration system further includes: a medium storage tank and a regulating valve corresponding to the medium storage tank, and the device further includes a regulating module for: Obtaining temperature requirements of the refrigerator compartment and the freezer compartment corresponding to the refrigeration system; The refrigerant flow in the refrigeration system is regulated according to the medium storage tank and the regulating valve corresponding to the medium storage tank, so that the refrigerant flow in the refrigeration system matches the temperature requirement.

[0055] In a possible implementation manner, the adjustment module is further used to: When the temperature requirement is a shallow low temperature requirement, the regulating valves corresponding to the refrigerating evaporator and the freezing evaporator are controlled to open, so that part of the refrigerant in the refrigerating evaporator and the freezing evaporator enters the medium storage tank; When the temperature requirement is in a controlled cooling state, the regulating valves corresponding to the freezing condenser and the refrigerating condenser are controlled to open, so that part of the refrigerant in the freezing condenser and the refrigerating condenser enters the medium storage tank; When the temperature requirement is a relatively low temperature requirement, the output regulating valve corresponding to the medium storage tank is controlled to open so that the refrigerant in the medium storage tank enters the compressor.

[0056] In a possible implementation, the compressor includes: a main compressor and a secondary compressor, and the device also includes a secondary compression module for: When the temperature requirement is an ultra-low temperature requirement, starting the auxiliary compressor; Controlling the output regulating valve corresponding to the media storage tank to open, so that the refrigerant in the media storage tank enters the main compressor, and the main compressor performs a first-stage compression on the refrigerant; Inputting the refrigerant after primary compression into the auxiliary compressor, and the auxiliary compressor performs secondary compression; The refrigerant after secondary compression is input into the refrigeration condenser.

[0057] like Figure 5 As shown, an embodiment of the present application provides a refrigerator, including a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 communicate with each other through the communication bus 114. Memory 113, used for storing computer programs; In one embodiment of the present application, the processor 111 is used to execute the program stored in the memory 113 to implement the refrigeration system control method provided by any of the above method embodiments, wherein the refrigeration system includes: a compressor, a freezing condenser, a refrigeration condenser, a refrigeration evaporator, a freezing evaporator, a first throttle valve, and a second throttle valve, and the method includes: When the refrigeration system is in operation, controlling the compressor to compress the refrigerant into a high-temperature and high-pressure state; The refrigerant compressed into a high-temperature and high-pressure state is respectively input into the refrigeration condenser and the freezing condenser for cooling; The refrigerant after the cooling treatment of the refrigeration condenser is throttled by the first throttle valve and then input into the refrigeration evaporator to evaporate and absorb heat, and the refrigerant after the cooling treatment of the freezing condenser is throttled by the second throttle valve and then input into the freezing evaporator to evaporate and absorb heat; Recovering the refrigerant after evaporation of the refrigeration evaporator and the refrigerant after evaporation of the freezing evaporator to the compressor respectively; Wherein, the refrigeration system further comprises: a first heat dissipation fan and a second heat dissipation fan; After controlling the first cooling fan to send external ambient temperature air to the refrigeration condenser for heat exchange, controlling the second cooling fan to send the air after heat exchange to the freezing condenser to absorb the heat released by the freezing condenser.

[0058] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the refrigeration system control method provided in any of the aforementioned method embodiments are implemented.

[0059] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0060] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0061] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0062] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A refrigeration system, characterized in that: The refrigeration system comprises: a compressor, a freezing condenser, a refrigerating condenser, a refrigerating evaporator, a freezing evaporator, a first throttle valve and a second throttle valve; The first output end of the compressor is connected to the input end of the refrigerating condenser, the second output end of the compressor is connected to the input end of the freezing condenser, the output end of the refrigerating condenser is connected to the input end of the refrigerating evaporator through the first throttle valve, the output end of the refrigerating evaporator is connected to the first input end of the compressor, the output end of the freezing condenser is connected to the input end of the freezing evaporator through the second throttle valve, and the output end of the freezing evaporator is connected to the second input end of the compressor; Wherein, the refrigeration system further comprises: a first heat dissipation fan and a second heat dissipation fan; A first cooling fan is arranged at the refrigerated condenser, and a second cooling fan is arranged at the frozen condenser, wherein the first cooling fan is close to a first air inlet, and the first air inlet is arranged below the refrigerated condenser, and the second cooling fan is close to a second air inlet, and the second air inlet is arranged on the left side of the refrigerated condenser and the frozen condenser.

2. The refrigeration system according to claim 1, characterized in that: The refrigeration system further includes: a medium storage tank, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a first regulating valve and a second regulating valve; The output end of the refrigerated evaporator is connected to the input end of the media storage tank through the first one-way valve, the output end of the frozen evaporator is connected to the input end of the media storage tank through the second one-way valve, the output end of the refrigerated condenser is connected to the input end of the media storage tank through the third one-way valve, the output end of the frozen condenser is connected to the input end of the media storage tank through the fourth one-way valve, the output end of the media storage tank is connected to the first input end of the compressor through the first regulating valve, and the output end of the media storage tank is also connected to the second input end of the compressor through the second regulating valve.

3. The refrigeration system according to claim 1, characterized in that: The compressor comprises: a main compressor and a sub-compressor; The first input end, the second input end, the first output end and the second output end of the compressor are arranged on the main compressor, the output end of the main compressor is connected to the input end of the auxiliary compressor, and the output end of the auxiliary compressor is connected to the input end of the refrigeration condenser.

4. A refrigeration system control method, characterized in that: The refrigeration system comprises: a compressor, a freezing condenser, a refrigerating condenser, a refrigerating evaporator, a freezing evaporator, a first throttle valve and a second throttle valve, and the method comprises: When the refrigeration system is in operation, controlling the compressor to compress the refrigerant into a high-temperature and high-pressure state; The refrigerant compressed into a high-temperature and high-pressure state is respectively input into the refrigeration condenser and the freezing condenser for cooling; The refrigerant after the cooling treatment of the refrigeration condenser is throttled by the first throttle valve and then input into the refrigeration evaporator to evaporate and absorb heat, and the refrigerant after the cooling treatment of the freezing condenser is throttled by the second throttle valve and then input into the freezing evaporator to evaporate and absorb heat; Recovering the refrigerant after evaporation of the refrigeration evaporator and the refrigerant after evaporation of the freezing evaporator to the compressor respectively; Wherein, the refrigeration system further comprises: a first heat dissipation fan and a second heat dissipation fan; After controlling the first cooling fan to send external ambient temperature air to the refrigeration condenser for heat exchange, controlling the second cooling fan to send the air after heat exchange to the freezing condenser to absorb the heat released by the freezing condenser.

5. The method according to claim 4, characterized in that The refrigeration system further includes: a medium storage tank and a regulating valve corresponding to the medium storage tank, and the method further includes: Obtaining temperature requirements of the refrigerator compartment and the freezer compartment corresponding to the refrigeration system; The refrigerant flow in the refrigeration system is regulated according to the medium storage tank and the regulating valve corresponding to the medium storage tank, so that the refrigerant flow in the refrigeration system matches the temperature requirement.

6. The method according to claim 5, characterized in that The regulating the refrigerant flow in the refrigeration system according to the medium storage tank and the regulating valve corresponding to the medium storage tank includes: When the temperature requirement is a shallow low temperature requirement, the regulating valves corresponding to the refrigerating evaporator and the freezing evaporator are controlled to open, so that part of the refrigerant in the refrigerating evaporator and the freezing evaporator enters the medium storage tank; When the temperature requirement is in a controlled cooling state, the regulating valves corresponding to the freezing condenser and the refrigerating condenser are controlled to open, so that part of the refrigerant in the freezing condenser and the refrigerating condenser enters the medium storage tank; When the temperature requirement is a relatively low temperature requirement, the output regulating valve corresponding to the medium storage tank is controlled to open so that the refrigerant in the medium storage tank enters the compressor.

7. The method according to claim 5, characterized in that The compressor comprises: a main compressor and a sub-compressor, and the method further comprises: When the temperature requirement is an ultra-low temperature requirement, starting the auxiliary compressor; Controlling the output regulating valve corresponding to the media storage tank to open, so that the refrigerant in the media storage tank enters the main compressor, and the main compressor performs a first-stage compression on the refrigerant; Inputting the refrigerant after primary compression into the auxiliary compressor, and the auxiliary compressor performs secondary compression; The refrigerant after secondary compression is input into the refrigeration condenser.

8. A device, characterized in that: include: A processor and a memory, wherein the processor is used to execute a refrigeration system control program stored in the memory to implement the refrigeration system control method according to any one of claims 4 to 7.

9. A storage medium, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the refrigeration system control method according to any one of claims 4 to 7.

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