Method and device for controlling refrigerator, refrigerator and computer readable storage medium

Abstract

The invention relates to the technical field of refrigerators, and discloses a method for controlling a refrigerator, the refrigerator comprises a box body, the box body is provided with a refrigeration space, and the refrigeration space comprises a quick cooling area and a refrigeration area; the refrigeration assembly is arranged in the box body and defines a cold air generation space; the circulation switching assembly can selectively enable the rapid cooling area to communicate with the cold air generation space or enable the rapid cooling area to communicate with the outer space of the box body; the method comprises the steps that under the condition that door opening and closing actions of the refrigerator are detected, the initial humidity and the real-time humidity of a quick cooling area are obtained; and according to the humidity difference value of the real-time humidity and the initial humidity of the rapid cooling area, the circulation switching assembly is controlled to adjust the communication state of the rapid cooling area. The whole pre-cooling period of the food materials is remarkably shortened, the instantaneous load of the refrigeration assembly is greatly reduced, and the rapid cooling and food material preservation capacity with the higher energy efficiency ratio is achieved under the full working condition. The invention further discloses a device for controlling the refrigerator, the refrigerator and a computer readable storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerators, for example to a method and device for controlling a refrigerator, a refrigerator and a computer readable storage medium. BACKGROUND

[0002] At present, with the improvement of people's living standards, the popularity of refrigerators is also increasing. In daily application scenarios, when the user puts food or an iron pot still at a high temperature into the refrigerator cold storage compartment, the high heat carried by the food itself will continuously interfere with the temperature of the cold storage space, causing the temperature of the cold storage compartment to rise and significantly increasing the load of the refrigeration system, affecting the freshness of other stored food. In order to solve the above-mentioned needs, the related technology proposes a control method for a cold storage compartment with a rapid cooling space, including: when the cold storage compartment detection temperature ≥ cold storage compartment start-up temperature, and the rapid cooling space detection temperature ≥ first predetermined temperature, controlling the rapid cooling space air door to open, so that the rapid cooling space starts to cool down; when the temperature drops to rapid cooling space detection temperature ≤ rapid cooling space shutdown temperature, control the rapid cooling space air door to close, so that the rapid cooling space stops cooling down.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0004] Although the related technology sets up a rapid cooling space and cools down through internal refrigeration cycle, when the initial heat load (temperature) of the food put in is extremely high, the refrigeration assembly needs to operate for a long time and at high load to offset the heat. This single dependence on internal refrigeration results in a prolonged overall cooling period and causes additional energy consumption burden.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0007] The embodiments of the present disclosure provide a method and device for controlling a refrigerator, a refrigerator and a computer readable storage medium, which significantly shortens the overall pre-cooling period of food, greatly reduces the instantaneous load of the refrigeration assembly, and realizes faster cooling and food preservation ability with higher energy efficiency ratio under all working conditions.

[0008] In some embodiments, the refrigerator comprises: a cabinet configured with a refrigeration space, the refrigeration space comprising a quick-cooling area and a refrigeration area; a refrigeration assembly disposed in the cabinet, the refrigeration assembly defining a cold air generating space; a circulation switching assembly connected to the quick-cooling area, the circulation switching assembly selectively connecting the quick-cooling area to the cold air generating space or connecting the quick-cooling area to an external space of the cabinet; and the method comprises: in the case of detecting a refrigerator door opening action, acquiring an initial humidity and a real-time humidity of the quick-cooling area; and according to a humidity difference between the real-time humidity and the initial humidity of the quick-cooling area, controlling the circulation switching assembly to adjust the connection state of the quick-cooling area.

[0009] In some embodiments, the device comprises: a processor and a memory storing program instructions, the processor being configured to execute the above-mentioned method for controlling a refrigerator when running the program instructions.

[0010] In some embodiments, the refrigerator comprises: a cabinet configured with a refrigeration space, the refrigeration space comprising a quick-cooling area and a refrigeration area; a refrigeration assembly disposed in the cabinet, the refrigeration assembly defining a cold air generating space; a circulation switching assembly connected to the quick-cooling area, the circulation switching assembly selectively connecting the quick-cooling area to the cold air generating space or connecting the quick-cooling area to an external space of the cabinet; and the above-mentioned device for controlling a refrigerator is installed in the cabinet and electrically connected with the circulation switching assembly.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, which when executed, cause a computer to execute the above-mentioned method for controlling a refrigerator.

[0012] The method, device and refrigerator for controlling a refrigerator, and the computer-readable storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] The embodiment of the present disclosure realizes sensitive identification and accurate control of high-humidity food material heat load by acquiring the initial humidity and real-time humidity of the rapid cooling area when detecting the refrigerator door opening action, and intelligently controlling the cycle switching assembly according to the humidity difference between the real-time humidity and the initial humidity, under high-humidity heat load conditions, the rapid cooling area is connected to the outside space of the cabinet to perform external circulation pre-cooling, and under medium heat load conditions, internal circulation cooling is performed, thereby based on the characteristics of the change in water vapor concentration after the food material is put in. The present disclosure can expand the judgment dimension of heat load through humidity sensing, improve the adaptability and control reliability of the system in complex environments. At the initial stage of large release of water vapor, external circulation is started to efficiently exhaust humid hot air and rapidly reduce the temperature and humidity of the rapid cooling area, avoiding the additional burden caused by the condensation of a large amount of water vapor. The embodiment of the present disclosure effectively solves the problem that in the prior art, when the heat load is extremely high, the single dependence on internal refrigeration mode leads to an extension of the overall cooling period and causes an additional energy consumption burden, thereby significantly shortening the overall pre-cooling period of the food material, greatly reducing the instantaneous load of the refrigeration assembly, and achieving faster cooling and food preservation capacity with higher energy efficiency ratio under all working conditions.

[0014] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0016] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0017] Figure 2 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0018] Figure 3 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0019] Figure 4 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0020] Figure 5 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0021] Figure 6 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0022] Figure 7is another structural schematic diagram of a refrigerator after removing part of a shell provided by an embodiment of the present disclosure;

[0023] Figure 8 is a structural schematic diagram of a circulation switching assembly of a refrigerator provided by an embodiment of the present disclosure;

[0024] Figure 9 is a schematic diagram of a method for controlling a refrigerator provided by an embodiment of the present disclosure;

[0025] Figure 10 is another schematic diagram of a method for controlling a refrigerator provided by an embodiment of the present disclosure;

[0026] Figure 11 is another schematic diagram of a method for controlling a refrigerator provided by an embodiment of the present disclosure;

[0027] Figure 12 is another schematic diagram of a method for controlling a refrigerator provided by an embodiment of the present disclosure;

[0028] Figure 13 is a schematic diagram of an apparatus for controlling a refrigerator provided by an embodiment of the present disclosure.

[0029] Reference signs:

[0030] 10: cabinet; 20: cabinet door; 30: quick cooling box; 40: drawer assembly; 110: refrigeration space; 101: quick cooling area; 102: refrigeration area; 200: air duct assembly; 210: air supply air duct; 220: return air duct; 300: refrigeration assembly; 301: cold air generation space; 40: circulation switching assembly; 400: air supply tee; 401: first penetration part; 402: first connection part; 410: first branch; 420: second branch; 430: third branch; 441: first communication air door; 442: air supply air door; 443: air supply fan; 500: return air tee; 501: second penetration part; 502: second connection part; 510: first branch; 520: second branch; 530: third branch; 541: second communication air door; 542: return air door; 543: return air fan; 710: internal circulation pipeline; 711: internal circulation air supply pipe; 712: internal circulation return air pipe; 720: external circulation pipeline; 721: external circulation air supply pipe; 722: external circulation return air pipe; 800: apparatus for controlling a refrigerator; 801: processor; 802: memory; 803: communication interface; 804: bus. DETAILED DESCRIPTION

[0031] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0032] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0033] Unless otherwise specified, the term "a plurality of" means two or more.

[0034] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0035] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0036] The term "corresponding" can refer to an association relationship or a binding relationship. A and B correspond to each other means that there is an association relationship or a binding relationship between A and B.

[0037] In combination Figures 1-8 As shown, the embodiments of the present disclosure provide a refrigerator, which includes a cabinet 10, a refrigeration assembly 300, an air duct assembly 200, and a circulation switching assembly 40. Wherein, the cabinet 10 is configured with a refrigeration space 110, the refrigeration space 110 includes a quick cooling area 101 and a refrigeration area 102; the refrigeration assembly 300 is arranged in the cabinet 10, and the refrigeration assembly 300 defines a cold air generating space 301; the air duct assembly 200 is arranged in the cabinet 10, and the air duct assembly 200 is used to communicate the cold air generating space 301 and the refrigeration area 102; the circulation switching assembly 40 is connected to the quick cooling area 101, and the circulation switching assembly 40 can selectively make the quick cooling area 101 communicate with the cold air generating space 301 or make the quick cooling area 101 communicate with the outside space of the cabinet 10.

[0038] The refrigerator provided by the embodiments of the present disclosure includes a cabinet 10 and a cabinet door 20, the cabinet 10 is configured with a refrigeration space 110, and the cabinet door 20 is used to open and close the refrigeration space 110.

[0039] The refrigerating space 110 is divided into a quick cooling area 101 and a refrigerating area 102. As an optional embodiment, the refrigerator includes shelves, and the space above and below the shelves is the quick cooling area 101 and the refrigerating area 102, respectively. As another optional embodiment, the refrigerator includes a partition assembly that divides the refrigerating space 110 into a separate quick cooling area 101 and a refrigerating area 102 that is the area outside the quick cooling area 101 in the refrigerating space 110. Illustratively, the partition assembly includes a drawer that can be pulled out, or the partition assembly includes a quick cooling box 30 with a door or cover. In this way, the effect of the high-temperature heat source on the temperature of the refrigerating space 110 is limited to the quick cooling area 101, and the effect on the refrigerating objects located in the refrigerating area 102 is small.

[0040] The refrigerator also includes an air duct assembly 200 and a refrigeration assembly 300. The refrigeration assembly 300 includes an evaporator compartment, an evaporator located in the evaporator compartment, and a refrigeration fan that drives air to flow through the evaporator to form cold air after the air exchanges heat with the evaporator. The evaporator compartment is the cold air generation space described above, and in the following description, the evaporator compartment and the cold air generation space 301 refer to the same location. The air duct assembly 200 is used to guide the cold air generated by the refrigeration assembly 300 to the refrigerating area 102. When the refrigeration fan is running, cold air is blown to the refrigerating area 102, thereby cooling the refrigerating area 102 and maintaining the refrigerating area 102 at a preset temperature.

[0041] The circulation switching assembly 40 includes a communication part and a switching part. The communication part communicates the quick cooling area 101, the space outside the cabinet 10, and the cold air generation space 301, and the switching part is used to selectively and alternately connect the quick cooling area 101 to the space outside the cabinet 10 and the cold air generation space 301. When the quick cooling area 101 is connected to the space outside the cabinet 10, the air in the quick cooling space exchanges heat with the space outside the cabinet 10, and at this time, the quick cooling objects are cooled by external circulation. When the quick cooling area 101 is connected to the cold air generation space 301, the air in the quick cooling space exchanges heat with the cold air generation space 301, and at this time, the quick cooling objects are cooled by internal circulation.

[0042] Exemplarily, the temperature of the quick-cooling object (such as high-heat food) located in the quick-cooling space is 50℃, the temperature of the space outside the cabinet 10 is 25℃, and the temperature of the cold air generating space 301 is 4℃. At this time, the quick-cooling object and the space outside the cabinet 10 have a large temperature difference, which can be used to cool the quick-cooling object. Although the quick-cooling object and the refrigeration space 110 have a larger temperature difference, the internal circulation cooling mode can make the latent heat released by the quick-cooling object all enter the cold air generating space 301, and the temperature of the cold air space fluctuates during the release of the latent heat, thereby causing the temperature of the refrigeration area 102 to fluctuate. In addition, the internal circulation cooling mode can generate more condensed water due to the low air temperature, and the condensed water attached to the inner wall of the quick-cooling area 101 or the cold air generating space 301 can affect the cleanliness of the refrigerator and reduce the refrigeration effect of the refrigerator.

[0043] The refrigerator provided by the embodiments of the present disclosure can selectively switch the external circulation cooling and the internal circulation cooling through the circulation switching assembly 40, can cool the quick-cooling object through external circulation in the initial stage when the temperature of the quick-cooling object is relatively high, and can further reduce the temperature of the quick-cooling object through internal circulation in the later stage when the temperature of the quick-cooling object is relatively low, thereby reducing the evaporation of water in the quick-cooling object and reducing the impact of the high-temperature quick-cooling object on the refrigeration function of the refrigerator and the energy consumption of the refrigerator for cooling the quick-cooling object.

[0044] Optionally, the circulation switching assembly 40 includes an internal circulation pipeline 710 and an external circulation pipeline 720, the internal circulation pipeline 710 is used to form an internal circulation air path between the quick-cooling area 101 and the cold air generating space 301, and the external circulation pipeline 720 is used to form an external circulation air path between the quick-cooling area 101 and the space outside the cabinet 10.

[0045] Exemplarily, the internal circulation pipeline 710 includes an internal circulation air supply pipe 711, an internal circulation return air pipe 712, and an internal circulation on-off control assembly, the internal circulation on-off control assembly is used to control the on-off of the internal circulation air supply pipe 711 and the internal circulation return air pipe 712. The external circulation pipeline 720 includes an external circulation air supply pipe 721, an external circulation return air pipe 722, and an external circulation on-off control assembly, the external circulation on-off control assembly is used to control the on-off of the external circulation air supply pipe and the internal circulation air supply pipe. By adopting such a setting form, the communication object of the quick-cooling area 101 can be switched through the opening and closing cooperation of the external circulation on-off control assembly and the internal circulation on-off control assembly, and the structure is simple and the function is reliable.

[0046] Optionally, the external circulation air supply pipe 721 and / or the external circulation return air pipe 722 is provided with a U-shaped section, and the middle position of the U-shaped section is lower than the two end positions.

[0047] In the absence of the damper, the U-shaped section can also reduce or avoid heat exchange of air based on the difference in cold and hot density, and the closing of the outer circulation pipeline 720 can be realized at low cost in the absence of the damper. The cold leakage of the rapid cooling area 101 to the external space is reduced or avoided.

[0048] Optionally, the outer circulation on-off control assembly includes an outer circulation fan.

[0049] In this way, the amount of air flowing into the rapid cooling area 101 from the external space of the cabinet 10 can be increased by the outer circulation fan, and the heat convection heat exchange effect on the rapid cooling object is strengthened. In addition, the outer circulation fan also provides a means for switching between internal circulation cooling and external circulation cooling, for example, the outer circulation fan is started in the external circulation cooling mode, and the outer circulation fan is closed in the internal circulation cooling mode.

[0050] Optionally, the outer circulation on-off control assembly includes an outer circulation damper.

[0051] With such a setting form, the opening and closing control of the outer circulation pipeline 720 is more direct and effective.

[0052] Optionally, the internal circulation on-off control assembly includes an internal circulation fan.

[0053] In this way, the amount of cold air flowing into the rapid cooling area 101 from the cold air generating space 301 can be increased by the internal circulation fan, and the heat convection heat exchange effect on the rapid cooling object is strengthened. In addition, the internal circulation fan also provides a means for switching between internal circulation cooling and external circulation cooling, for example, the internal circulation fan is started in the internal circulation cooling mode, and the internal circulation fan is closed in the external circulation cooling mode.

[0054] Optionally, the internal circulation on-off control assembly includes an internal circulation damper.

[0055] With such a setting form, the on-off control of the internal circulation pipeline 710 is more direct.

[0056] Optionally, the circulation switching assembly 40 includes a supply air three-way piece 400 and a supply air switching assembly, wherein the supply air three-way piece 400 has a first interface directly or indirectly connected to the cold air generating space 301, a second interface connected to the rapid cooling area 101, and a third interface connected to the external space of the cabinet 10; the supply air switching assembly is arranged in the supply air three-way piece 400, and the supply air switching assembly can selectively connect the second interface of the supply air three-way piece 400 to the first interface or the third interface.

[0057] The air supply tee 400 comprises a first branch 410, a second branch 420 and a third branch 430. The first branch 410 has a first interface, the second branch 420 has a second interface, and the third branch 430 has a third interface. With the air supply tee 400, the first branch 410 is shared by the outer circulation pipeline 720 and the inner circulation pipeline 710, i.e., the first branch 410 simultaneously serves as a part of the outer circulation air supply pipeline 721 and a part of the inner circulation air supply pipeline 711. With such a configuration, the number of pipelines connected to the rapid cooling area 101 can be reduced, and the air path structure is simplified.

[0058] The air supply switching assembly closes the third interface when the second interface is connected to the first interface, and in this case, the rapid cooling area 101 performs inner circulation cooling. The air supply switching assembly closes the first interface when the second interface is connected to the third interface, and in this case, the rapid cooling area 101 performs outer circulation cooling. With the air supply tee 400 provided with the air supply switching assembly, the number of control components can be reduced.

[0059] Optionally, the air supply switching assembly comprises a first communication damper 441, an air supply damper 442 and an air supply fan 443. The first communication damper 441 is arranged at the first interface of the air supply tee 400. The air supply damper 442 is arranged at one of the second interface and the third interface of the air supply tee 400. The air supply fan 443 is arranged at the other one of the second interface and the third interface of the air supply tee 400. In the case that the first communication damper 441 is closed, the air supply damper 442 is opened, and the air supply fan 443 is started, the air supply switching assembly connects the rapid cooling area 101 to the space outside the cabinet 10. In the case that the first communication damper 441 is opened, the air supply damper 442 arranged at the second interface is opened or the air supply fan 443 is started, and the air supply fan 443 arranged at the third interface is stopped or the air supply damper 442 is closed, the air supply switching assembly connects the rapid cooling area 101 to the cold air generation space 301.

[0060] The first communication damper 441 is used to control the opening and closing of the first interface, so as to isolate or connect the air supply tee 400 to the space outside the cabinet 10. The positions of the air supply fan 443 and the air supply damper 442 can be interchanged. Hereinafter, the air supply damper 442 is located at the third interface, and the air supply fan 443 is located at the second interface as an example.

[0061] In the outer circulation cooling mode, the first communication damper 441 closes the first interface, the air supply damper 442 opens the third interface, and the air supply fan 443 drives air to enter the rapid cooling area 101 from the space outside the cabinet 10 when the air supply fan 443 is running.

[0062] In the inner circulation cooling mode, the first communication damper 441 opens the first interface, the air supply damper 442 closes the third interface, and the air supply fan 443 drives air to enter the rapid cooling area 101 from the cold air generation space 301 when the air supply fan 443 is running.

[0063] With such a setting mode, the inner circulation cooling and the outer circulation cooling can be switched by the on-off control of the first communication damper 441 and the air supply damper 442, the air duct structure is simple, and the influence of the air duct arranged in the foaming layer on the heat preservation effect of the refrigerator or the influence of the air duct arranged in the inner part of the refrigeration space 110 of the cabinet 10 on the capacity of the refrigerator is reduced.

[0064] Optionally, the air supply tee 400 comprises a first penetrating part 401 and a first connecting part 402, the first penetrating part 401 penetrates the heat preservation layer of the rear part of the cabinet 10 and has two ends as the second interface and the third interface of the air supply tee 400 respectively, one end of the first connecting part 402 is connected to the first penetrating part 401 and the other end is as the first interface of the air supply tee 400, and the first connecting part 402 is located inside the heat preservation layer of the cabinet 10.

[0065] The air supply tee 400 is in a T shape as a whole, the first penetrating part 401 penetrates the heat preservation layer of the rear part of the cabinet 10, and the first penetrating part 401 comprises the second branch 420 and the third branch 430. The first connecting part 402 is as the first branch 410 and is located inside the heat preservation layer.

[0066] With such a setting mode, the overall volume of the air supply tee 400 is small and most of the air supply tee 400 is located inside the heat preservation layer, so that the volume of the air supply tee 400 can be reduced.

[0067] Optionally, the circulation switching assembly 40 further comprises an air return tee 500 and an air return switching assembly, wherein the air return tee 500 has its first interface directly or indirectly connected to the cold air generating space 301, its second interface connected to the quick cooling area 101, and its third interface connected to the space outside the cabinet 10; the air return switching assembly is arranged in the air return tee 500 and can selectively make the second interface of the air return tee 500 communicate with the first interface or the third interface.

[0068] The air return tee 500 comprises a first branch 510, a second branch 520 and a third branch 530, the first branch 510 has a first interface, the second branch 520 has a second interface, and the third branch 530 has a third interface. With the air return tee 500, the first branch 510 is shared by the outer circulation pipeline 720 and the inner circulation pipeline 710, that is, the first branch 510 simultaneously serves as a part of the outer circulation air return pipeline 722 and a part of the inner circulation air return pipeline 712. With such a setting mode, the number of pipelines connected to the quick cooling area 101 can be reduced, and the air duct structure is simplified.

[0069] The return air switching assembly closes the third interface when the second interface is communicated with the first interface, and the rapid cooling area 101 performs internal circulation cooling at this time. The return air switching assembly closes the first interface when the second interface is communicated with the third interface, and the rapid cooling area 101 performs external circulation cooling at this time. The return air switching assembly is arranged in the return air tee joint 500, and the number of control components can be reduced.

[0070] Optionally, the return air switching assembly comprises a second communication air door 541, a return air door 542, and a return air fan 543. The second communication air door 541 is arranged in the first interface of the return air tee joint 500. The return air door 542 is arranged in one of the second interface and the third interface of the return air tee joint 500. The return air fan 543 is arranged in the other one of the second interface and the third interface of the return air tee joint 500. In a case where the second communication air door 541 is closed, the return air door 542 is opened, and the return air fan 543 is started, the return air switching assembly communicates the rapid cooling area 101 with the external space of the refrigerator body 10. In a case where the second communication air door 541 is opened, the return air door 542 arranged in the second interface is opened or the return air fan 543 is started, and the return air fan 543 arranged in the third interface is stopped or the return air door 542 is closed, the return air switching assembly communicates the rapid cooling area 101 with the cold air generating space 301.

[0071] The second communication air door 541 is used to control the opening and closing of the first interface, so as to isolate or communicate the return air tee joint 500 with the external space of the refrigerator body 10. The positions of the return air fan 543 and the return air door 542 can be interchanged. Hereinafter, the return air door 542 is located in the third interface, and the return air fan 543 is located in the second interface as an example for description.

[0072] In the external circulation cooling mode, the second communication air door 541 closes the first interface, the return air door 542 opens the third interface, and the return air fan 543 drives air from the rapid cooling area 101 to enter the external space of the refrigerator body 10 when the return air fan 543 is running.

[0073] In the internal circulation cooling mode, the second communication air door 541 opens the first interface, the return air door 542 closes the third interface, and the return air fan 543 drives air from the rapid cooling area 101 to enter the cold air generating space 301 when the return air fan 543 is running.

[0074] In this way, the internal circulation cooling and the external circulation cooling can be switched by controlling the opening and closing of the second communication air door 541 and the return air door 542, the air duct structure is simple, the influence of the air duct arranged in the foaming layer on the heat preservation effect of the refrigerator is reduced, or the influence of the air duct arranged in the refrigerating space 110 of the refrigerator body 10 on the capacity of the refrigerator is reduced.

[0075] Optionally, the return air tee 500 includes a second penetrating portion 501 and a second connecting portion 502. The second penetrating portion 501 penetrates the thermal insulation layer at the rear of the cabinet 10 and has two ends as a second interface and a third interface of the return air tee 500, respectively. One end of the second connecting portion 502 is connected to the second penetrating portion 501 and the other end is as a second interface of the return air tee 500. The second connecting portion 502 is located inside the thermal insulation layer of the cabinet 10.

[0076] The return air tee 500 is in a T shape as a whole. The first penetrating portion 401 penetrates the thermal insulation layer at the rear of the cabinet 10 and includes a second branch 520 and a third branch 530. The first connecting portion 402 is as the first branch 510 and is located inside the thermal insulation layer.

[0077] With such a configuration, the overall volume of the return air tee 500 is small and most of the return air tee 500 is located inside the thermal insulation layer, so that the volume of the return air tee 500 can be reduced.

[0078] Optionally, the air duct assembly 200 includes a supply air duct 210 and a return air duct 220. The supply air duct 210 has one end communicating with the cold air generating space 301 and the other end communicating with the refrigeration area 102. The return air duct 220 has one end communicating with the cold air generating space 301 and the other end communicating with the refrigeration area 102. The circulation switching assembly 40 indirectly communicates the cold air generating space 301 with the supply air duct 210 and / or the return air duct 220.

[0079] The supply air duct 210 and the return air duct 220 of the refrigerator are used to form an air circulation loop between the refrigeration area 102 and the cold air generating space 301. The cold air of the cold air generating space 301 enters the refrigeration area 102 through the supply air duct 210, and the air of the refrigeration area 102 returns to the cold air generating space 301 through the return air duct 220.

[0080] The circulation switching assembly 40 is connected to the supply air duct 210 and the return air duct 220 and is connected to the quick cooling area 101 and the air duct sharing a part of the pipeline with the air duct connected to the refrigeration area 102, so that the number of air ducts can be reduced, the difficulty of laying the air ducts can be reduced, and the heat preservation performance of the refrigerator can be improved.

[0081] Optionally, the refrigerator further includes a temperature sensor arranged in the quick cooling area 101 or the return air tee 500 and used to detect the temperature of the quick cooling area 101.

[0082] When the temperature of the quick cooling region 101 is lowered, the switching of the external circulation and the internal circulation relies on the temperature of the quick cooling region 101. The temperature of the quick cooling region 101 includes the temperature of the quick cooling object and the background temperature of the quick cooling object. In some cases, the refrigerator switches the circulation mode based on the temperature of the quick cooling object. In other cases, the refrigerator switches the circulation mode based on the background temperature of the quick cooling object (i.e., the temperature of the air in the quick cooling region 101).

[0083] With such a setting form, the refrigerator is facilitated to flexibly switch the circulation mode to lower the temperature of the quick cooling object.

[0084] Optionally, the refrigerator further comprises a humidity sensor arranged in the quick cooling region 101 and configured to detect the humidity of the quick cooling region 101.

[0085] With the humidity sensor arranged, the refrigerator is facilitated to control the humidity of the quick cooling region 101 and switch the internal circulation and the external circulation mode based on the humidity of the quick cooling region 101.

[0086] Optionally, the refrigerator further comprises a pressure sensor arranged in the quick cooling region 101 and configured to detect the pressure of the quick cooling region 101.

[0087] When the air in the quick cooling region 101 is drawn out to the external space of the cabinet 10 and the cold air generating space 301, the pressure of the quick cooling region 101 is lowered. After the pressure of the quick cooling region 101 is lowered, the water in some foods with high water content evaporates, which can quickly lower the temperature of the quick cooling object by absorbing heat through phase change. With the pressure sensor arranged, the refrigerator is facilitated to control the pressure of the quick cooling region 101 and switch the internal circulation and the external circulation mode based on the pressure of the quick cooling region 101.

[0088] Optionally, the refrigerator further comprises a control device 800 configured to control the circulation switching assembly 40 to adjust the communication state of the quick cooling region 101 according to one or more environmental information of the quick cooling region 101, such as the temperature, the humidity, and the pressure.

[0089] Optionally, the refrigerator further comprises the quick cooling box 30 and the drawer assembly 40, and the quick cooling box 30 is arranged side by side with the drawer assembly 40.

[0090] The quick cooling region 101 is defined inside the quick cooling box 30. With the quick cooling box 30 arranged side by side with the drawer assembly 40, the quick cooling region 101 has a large height, which can be used to place pots, basins, and other kitchen utensils together with the food in communication with the quick cooling region 101. Compared with the form of directly placing the high-temperature food into the refrigerator, this form can reduce the temperature fluctuation in the refrigerator when the food is cooled. Compared with the form of placing the high-temperature food into the refrigerator after it is cooled, the form of directly placing the high-temperature food into the quick cooling region 101 avoids the situation that the user forgets to place the food into the refrigerator after it is cooled for a long time, which facilitates the use of the user.

[0091] Based on the above refrigerator, in combination Figure 9 As shown in the figure, the embodiment of the present disclosure provides a method for controlling a refrigerator, comprising:

[0092] S101, in the case of detecting the refrigerator door opening and closing action, the control device acquires the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area.

[0093] S102, the control device controls the cycle switching component to adjust the communication state of the quick cooling area according to the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area.

[0094] The method for controlling a refrigerator provided by the embodiment of the present disclosure, by acquiring the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area in the case of detecting the refrigerator door opening and closing action, and intelligently controlling the cycle switching component according to the temperature difference between the quick cooling area and the refrigeration area, makes the quick cooling area communicate with the outside space of the box body for external circulation pre-cooling under high heat load conditions, and performs internal circulation cooling under medium heat load conditions, so as to accurately determine the heat load level of the food material, and realize high-precision and high-robustness heat dissipation mode switching. The embodiment of the present disclosure can use the external environment as a medium for heat transfer, quickly discharge the huge sensible heat load carried by the food material from the box body, effectively avoid the direct impact of high heat on the main refrigeration system of the refrigeration space, and ensure that the main refrigeration system and other food materials stored in the refrigeration area are not disturbed by temperature fluctuations. The embodiment of the present disclosure effectively solves the problem that in the prior art, when the heat load is extremely high, the single dependence on internal refrigeration mode leads to the extension of the overall cooling period and causes additional energy consumption burden, thereby significantly shortening the overall pre-cooling period of the food material, greatly reducing the instantaneous load of the refrigeration component, and realizing higher energy efficiency ratio of rapid cooling and food preservation capacity under all working conditions.

[0095] Optionally, the control device controls the cycle switching component to adjust the communication state of the quick cooling area according to the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area, comprising: in the case that the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to a first temperature difference value, the control device controls the cycle switching component to make the quick cooling area communicate with the outside space of the box body for external circulation cooling; in the case that the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first temperature difference value and greater than a second temperature difference value, the control device controls the cycle switching component to make the quick cooling area communicate with the cold air generation space for internal circulation cooling; in the case that the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second temperature difference value, the control device controls the cycle switching component to make the quick cooling area not communicate with the outside space of the box body and the cold air generation space. Wherein, the first temperature difference value is greater than the second temperature difference value, and the second temperature difference value is greater than or equal to 0.

[0096] In this way, the embodiment of the present disclosure realizes a three-stage gradient heat load processing strategy based on temperature difference by setting the first temperature difference value and the second temperature difference value. When the real-time temperature difference between the rapid cooling area and the refrigeration area is large, the system quickly determines that it is high heat load, starts the outer circulation pre-cooling, and quickly discharges a large amount of heat; when the real-time temperature difference between the rapid cooling area and the refrigeration area is moderate, the system determines that it is medium heat load at this time, starts the inner circulation for fine cooling; and when the real-time temperature difference between the rapid cooling area and the refrigeration area is small, the system timely makes the rapid cooling area not connected to any circulation to correspond to the low heat load condition, and reasonably maintains the internal temperature of the rapid cooling area stable. This grading strategy ensures that the most suitable rapid cooling mode can be selected under various heat load inputs, and realizes effective isolation and optimal allocation of resources.

[0097] Optionally, the control device controls the circulation switching assembly to adjust the connection state of the rapid cooling area according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area, and further includes: in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the third temperature difference value, the control device controls the circulation switching assembly to make the rapid cooling area connected to the external space of the cabinet to perform outer circulation heating. The third temperature difference value is less than 0.

[0098] In this way, the embodiment of the present disclosure introduces the third temperature difference value (negative value) as a criterion to realize the outer circulation heating mechanism. When the temperature of the rapid cooling area is much lower than the refrigeration target temperature due to deep cooling, the system introduces ambient normal temperature air from the external space of the cabinet to perform heating. This operation not only serves as a low temperature safety protection mechanism to prevent the rapid cooling food from being too cold or frozen, but also provides a new function of using the external environment air to gently and controllably thaw the frozen food in the rapid cooling area, and realizes full-range accurate control and multifunctional application of the temperature of the rapid cooling area.

[0099] Optionally, the control device controls the circulation switching assembly to make the rapid cooling area connected to the external space of the cabinet to perform outer circulation cooling, including: the control device controls the air supply switching assembly to make the second interface of the air supply three-way piece connected to the third interface; and the control device controls the return air switching assembly to make the second interface of the return air three-way piece connected to the third interface.

[0100] In this way, the embodiment of the present disclosure makes the second interfaces of the air supply three-way piece and the return air three-way piece both connected to the third interface, so that the rapid cooling area is connected to the external space of the cabinet on the air supply-return air passage, thereby ensuring accurate switching of the outer circulation cooling mode under high heat load conditions. The embodiment of the present disclosure can establish a complete and large air volume external air convection path to realize maximum air heat exchange rate driven by the fan, thereby quickly and efficiently discharging the air sensible heat in the rapid cooling area, and significantly improving the timeliness of high heat pretreatment.

[0101] Optionally, the control device controls the circulation switching assembly to connect the rapid cooling area to the cold air generating space for internal circulation cooling, comprising: the control device controls the air supply switching assembly to connect the second interface of the air supply tee joint to the first interface; and the control device controls the return air switching assembly to connect the second interface of the return air tee joint to the first interface.

[0102] In this way, the second interface of the air supply tee joint and the second interface of the return air tee joint are both connected to the first interface, so that the rapid cooling area is connected to the cold air generating space through the air supply and return air passage, and accurate switching of the internal circulation cooling mode under a medium load condition is ensured. The rapid cooling area can be effectively integrated into the main refrigeration cycle, and fine cooling is performed by using the stable cold source provided by the evaporator, so that the refrigeration effect is ensured, and the dependence on external circulation and the environmental humidity fluctuation caused thereby are minimized.

[0103] Optionally, after the control device controls the circulation switching assembly to connect the rapid cooling area to the external space of the cabinet for external circulation cooling, the method further comprises: the control device acquires the ambient temperature of the external space of the cabinet; and the control device controls the air supply fan to adjust the working speed according to the ambient temperature of the external space of the cabinet. The working speed of the air supply fan and the ambient temperature of the external space of the cabinet are negatively correlated.

[0104] In this way, by setting the air supply fan speed and the external environment temperature to be negatively correlated, the energy efficiency of the external circulation cooling can be adaptively optimized to ensure that the external circulation pre-processing process is always in the best energy efficiency ratio. When the external heat dissipation efficiency is low, the power consumption of the air supply fan can be appropriately reduced to reduce the additional energy consumption burden; when the external heat dissipation efficiency is high, the performance of the air supply fan can be fully utilized to maximize the heat exchange amount, and the waste of electric energy caused by inefficient operation under harsh environmental conditions is avoided.

[0105] Optionally, the control device controls the air supply fan to adjust the working speed according to the ambient temperature of the external space of the cabinet, comprising: when the ambient temperature of the external space of the cabinet is greater than or equal to a first external temperature of the cabinet, the control device outputs a first speed instruction to enable the air supply fan to operate at a low speed; or when the ambient temperature of the external space of the cabinet is less than the first external temperature of the cabinet and greater than a second external temperature of the cabinet, the control device outputs a second speed instruction to enable the air supply fan to operate at a medium speed; or when the ambient temperature of the external space of the cabinet is less than or equal to the second external temperature of the cabinet, the control device outputs a third speed instruction to enable the air supply fan to operate at a high speed.

[0106] In this way, the embodiment of the present disclosure can realize energy efficiency self-adaptive optimization in the external circulation pre-cooling process, and ensure that the heat load transfer efficiency is dynamically matched with the environmental conditions. By setting the first and second outdoor temperatures, the efficiency of the external environmental heat sink is divided into three levels, and the fan speed is dynamically matched. When the ambient temperature of the external space of the cabinet is greater than or equal to the first outdoor temperature, the heat dissipation efficiency of the external environment is low at this time, and the system can output the first speed instruction to make the air supply fan run at a low speed, avoiding the high power consumption of the fan in the low efficiency state, and effectively reducing the waste of electric energy. When the ambient temperature of the external space of the cabinet is less than the first outdoor temperature and greater than the second outdoor temperature, the heat dissipation efficiency of the external environment is moderate at this time, and the system can output the second speed instruction to make the air supply fan run at a medium speed, thereby balancing the cooling speed and energy consumption, and ensuring the stability and energy efficiency ratio of the pre-cooling process. When the ambient temperature of the external space of the cabinet is less than or equal to the second outdoor temperature, the heat dissipation efficiency of the external environment is high at this time, and the system can output the third speed instruction to make the air supply fan run at a high speed, thereby maximizing the air exchange amount and heat discharge rate, and significantly improving the speed of high heat load pre-processing.

[0107] Optionally, after the control device controls the circulation switching assembly to connect the rapid cooling area to the cold air generating space for internal circulation cooling, the control device further acquires a set temperature of the refrigeration area, and controls the first communication damper to adjust the working opening according to the temperature difference between the ambient temperature of the refrigeration area and the set temperature. The working opening of the first communication damper and the temperature difference between the ambient temperature of the refrigeration area and the set temperature are negatively correlated.

[0108] In this way, by setting the negative correlation between the first communication damper opening and the refrigeration area temperature difference, the embodiment of the present disclosure can realize self-adaptive flow adjustment of internal circulation cold air distribution, to ensure intelligent dynamic scheduling of refrigeration resources in the internal circulation mode. When the temperature difference of the main refrigeration area is large, the first communication damper opening can be appropriately reduced, thereby reducing the priority of the rapid cooling area cold quantity distribution, and preferentially ensuring the temperature stability of the main refrigeration area. When the temperature difference of the main refrigeration area is small, the first communication damper opening can be appropriately increased, thereby increasing the priority of the rapid cooling area cold quantity distribution, to improve the rapid cooling effect of the rapid cooling area.

[0109] Optionally, the control device controls the first communication damper to adjust the working opening degree according to a temperature difference between the environment temperature of the refrigeration area and the set temperature, including: in a case where the temperature difference between the environment temperature of the refrigeration area and the set temperature is greater than or equal to a first refrigeration temperature difference, the control device outputs a first opening degree instruction to make the first communication damper slightly open; or in a case where the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than the first refrigeration temperature difference and greater than a second refrigeration temperature difference, the control device outputs a second opening degree instruction to make the first communication damper half open; or in a case where the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than or equal to the second refrigeration temperature difference, the control device outputs a third opening degree instruction to make the first communication damper fully open.

[0110] In this way, the disclosed embodiments can realize dynamic priority management of internal circulation refrigeration resource allocation. By monitoring the temperature deviation of the refrigeration area, the system's cold energy allocation demand for the rapid cooling area is divided into three levels. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is greater than or equal to a first refrigeration temperature difference, it indicates that the temperature stability of the main refrigeration area is threatened, and the system can output a first opening degree instruction to make the first communication damper slightly open, thereby limiting the flow of cold air entering the rapid cooling area, prioritizing cold energy allocation to the main refrigeration area, and ensuring the temperature stability of the core storage area of the refrigerator. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than the first refrigeration temperature difference and greater than a second refrigeration temperature difference, the system balances the demand of the refrigeration area and the rapid cooling area at this time, and can output a second opening degree instruction to make the first communication damper half open for moderate cold energy allocation, thereby balancing the rapid cooling efficiency and the main area stability. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than or equal to the second refrigeration temperature difference, the temperature stability of the main refrigeration area at this time, the system can output a third opening degree instruction to make the first communication damper fully open, thereby maximizing the flow of cold air entering the rapid cooling area to meet the rapid cooling demand at the fastest speed.

[0111] Optionally, the method for controlling the refrigerator further includes: the control device controls the second communication damper to adjust the working opening degree according to a temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area; and / or, the control device controls the return air damper to adjust the working opening degree according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area; and / or, the control device controls the return air fan to adjust the working rotating speed according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area. The working opening degree of the second communication damper, the working opening degree of the return air damper, and the working rotating speed of the return air fan are all positively correlated with the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area.

[0112] Thus, by setting the return air passage assembly work load and the temperature difference between the rapid cooling area and the refrigeration area in positive correlation, the embodiments of the present disclosure can realize dynamic flow and power ratio control of the internal and external circulation cooling process to avoid energy waste and excessive refrigeration caused by fixed-speed operation of the air door or fan. When the external heat dissipation efficiency is low, the supply fan power consumption can be appropriately reduced to reduce the additional energy consumption burden; when the external heat dissipation efficiency is high, the supply fan performance can be fully utilized to maximize the heat exchange amount, avoiding the waste of electric energy caused by inefficient operation in harsh environmental conditions.

[0113] Optionally, the control device controls the second communication air door to adjust the working opening degree according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area, including: in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, the control device outputs a third opening degree instruction to make the second communication air door fully open; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the control device outputs a second opening degree instruction to make the second communication air door half open; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first opening degree instruction to make the second communication air door slightly open.

[0114] Thus, the embodiments of the present disclosure can realize real-time demand matching of the internal circulation return air flow, and fine regulation and control based on the actual heat load of the rapid cooling area. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third opening degree instruction to make the second communication air door fully open. Full opening of the air door can minimize the return air resistance and maximize the return and circulation efficiency of the hot air of the rapid cooling area to the cold air generation space, ensuring rapid heat exchange under high heat load. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, moderate flow control is performed, and the system can output a second opening degree instruction to make the second communication air door half open, which is conducive to balancing the cooling efficiency and fan operation energy consumption. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first opening degree instruction to make the second communication air door slightly open. Slight opening of the air door can meet the demand of fine temperature maintenance, reducing unnecessary air exchange and energy consumption.

[0115] Optionally, the control device controls the return air damper to adjust the working opening degree according to a temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area, including: in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to a first real-time temperature difference, the control device outputs a third opening degree instruction to make the return air damper fully open; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than a second real-time temperature difference, the control device outputs a second opening degree instruction to make the return air damper half open; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first opening degree instruction to make the return air damper slightly open.

[0116] In this way, the embodiment of the disclosure can realize dynamic optimization of the return air side passage resistance of the quick cooling area to adapt to the convective heat exchange demand under different heat loads. When the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output the third opening degree instruction to make the return air damper fully open. The full opening of the damper can eliminate the limitation of the passage resistance on the air volume, ensure the discharge / extraction of the maximum air volume, and be beneficial to the heat discharge in the external circulation cooling or the heat extraction in the internal circulation cooling. When the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, moderate flow control is performed at this time, and the system can output the second opening degree instruction to make the return air damper half open, balancing the heat exchange demand and the air duct running noise. When the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output the first opening degree instruction to make the return air damper slightly open. The slight opening of the damper can meet the required weak convection for maintenance, and at the same time, fine return air flow control is realized, and the running stability of the system is improved.

[0117] Optionally, the control device controls the return air fan to adjust the working rotating speed according to a temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area, including: in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to a first real-time temperature difference, the control device outputs a third rotating speed instruction to make the return air fan run at a high rotating speed; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than a second real-time temperature difference, the control device outputs a third rotating speed instruction to make the return air fan run at a medium rotating speed; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first rotating speed instruction to make the return air fan run at a low rotating speed.

[0118] In this way, the embodiment of the present disclosure can realize dynamic load matching of the driving power of the return air fan, and is conducive to improving the energy efficiency ratio in the circulation mode. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third speed instruction to make the return air fan run at a high speed. The high speed can provide maximum air volume driving, ensuring that the system can discharge heat at maximum power when facing high heat load, and shortening the cooling period. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the system can output a second speed instruction to make the return air fan run at a medium speed. The medium speed takes into account the cooling effect and energy consumption, avoids unnecessary full-speed operation, and improves the economy of operation. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first speed instruction to make the return air fan run at a low speed. The low speed is used for temperature maintenance and low-power operation, realizes energy saving and emission reduction, and prolongs the service life of the fan.

[0119] Based on the above refrigerator, in combination with Figure 10 The embodiment of the present disclosure provides another method for controlling a refrigerator, comprising:

[0120] S201, in the case of detecting the refrigerator door opening action, the control device acquires the initial humidity and the real-time humidity of the rapid cooling area.

[0121] S202, the control device controls the circulation switching component to adjust the communication state of the rapid cooling area according to the humidity difference between the real-time humidity and the initial humidity of the rapid cooling area.

[0122] The method for controlling a refrigerator provided by the embodiment of the present disclosure can realize sensitive identification and accurate control of high-humidity food thermal load based on the characteristics of water vapor concentration change after food is put in, by acquiring the initial humidity and real-time humidity of the rapid cooling area when detecting the refrigerator door opening action, and intelligently controlling the cycle switching component according to the humidity difference between the real-time humidity and the initial humidity, so as to make the rapid cooling area communicate with the outside space of the cabinet for external circulation pre-cooling under high-humidity thermal load conditions, and make the rapid cooling area communicate with the cold air generation space for internal circulation cooling under medium thermal load conditions. The embodiment of the present disclosure can expand the judgment dimension of thermal load by humidity sensing, thereby improving the adaptability and control reliability of the system in complex environments. The external circulation is started at the initial stage of large release of water vapor, the humid and hot air is efficiently discharged, the temperature and humidity of the rapid cooling area are rapidly reduced, and the additional burden caused by condensation of a large amount of water vapor is avoided. The embodiment of the present disclosure effectively solves the problem that in the prior art, when the thermal load is extremely high, the single dependence on the internal refrigeration mode causes the overall cooling period to be prolonged and causes additional energy consumption burden, thereby significantly shortening the overall pre-cooling period of the food, greatly reducing the instantaneous load of the refrigeration component, and realizing faster cooling and food preservation capacity with higher energy efficiency ratio under all working conditions.

[0123] Optionally, in the case of detecting the refrigerator door opening action, the control device acquires the initial humidity and real-time humidity of the rapid cooling area, including: in the case of detecting the refrigerator door opening action, the control device acquires the initial humidity of the rapid cooling area; in the case of detecting the refrigerator door closing action, the control device acquires the real-time humidity of the rapid cooling area.

[0124] In this way, the embodiment of the present disclosure takes the initial humidity before the door is opened as the reference to calculate the difference of the real-time humidity after the door is closed, ensuring the accuracy and reliability of the humidity difference calculation, effectively eliminating the interference of the environmental background humidity, and significantly improving the accuracy of the humidity difference judgment.

[0125] Optionally, the control device controls the cycle switching component to adjust the communication state of the rapid cooling area according to the humidity difference between the real-time humidity and the initial humidity of the rapid cooling area, including: in the case that the humidity difference between the real-time humidity and the initial humidity of the rapid cooling area is greater than or equal to a first humidity difference value, the control device controls the cycle switching component to make the rapid cooling area communicate with the outside space of the cabinet for external circulation cooling; in the case that the humidity difference between the real-time humidity and the initial humidity of the rapid cooling area is less than the first humidity difference value and greater than a second humidity difference value, the control device controls the cycle switching component to make the rapid cooling area communicate with the cold air generation space for internal circulation cooling; in the case that the humidity difference between the real-time humidity and the initial humidity of the rapid cooling area is less than or equal to the second humidity difference value, the control device controls the cycle switching component to make the rapid cooling area not communicate with the outside space of the cabinet and the cold air generation space. The first humidity difference value is greater than the second humidity difference value.

[0126] In this way, the embodiments of the present disclosure realize a three-level gradient humidity heat load processing strategy based on humidity difference by setting the first humidity difference value and the second humidity difference value. When the humidity difference between the real-time humidity and the initial humidity of the rapid cooling area is greater than or equal to the first humidity difference value, the system quickly determines that it is a high humidity heat load, indicating that the food material releases a large amount of latent heat (water vapor), at which time the system starts the external circulation cooling to quickly exhaust the high-temperature and high-humidity air, thereby reducing the dehumidification burden of the evaporator of the main refrigeration system from the source. When the humidity difference is less than the first humidity difference value and greater than the second humidity difference value, the system determines that it is a medium humidity heat load, and starts the internal circulation cooling to use the refrigeration and dehumidification functions of the evaporator to finely manage the temperature and humidity of the rapid cooling area. When the humidity difference is less than or equal to the second humidity difference value, the system timely disconnects the rapid cooling area from any circulation, which corresponds to a low humidity heat load condition, and reasonably maintains the stability of the internal environment of the rapid cooling area. This grading strategy effectively separates the processing of latent heat load and sensible heat load, ensures that the most suitable circulation mode can be selected under various humidity heat load inputs, and greatly improves the processing efficiency of the humidity heat material and the operation efficiency of the main refrigeration system.

[0127] Optionally, the control device controls the circulation switching assembly to connect the rapid cooling area to the external space of the cabinet for external circulation cooling, comprising: the control device controls the air supply switching assembly to connect the second interface of the air supply three-way piece to the third interface; and the control device controls the return air switching assembly to connect the second interface of the return air three-way piece to the third interface.

[0128] In this way, the embodiments of the present disclosure connect the second interfaces of the air supply three-way piece and the return air three-way piece to the third interface, so that the rapid cooling area is connected to the external space of the cabinet in the air supply and return air passage, thereby ensuring the accurate switching of the external circulation cooling mode under high heat load conditions. The embodiments of the present disclosure can establish a complete and large air volume external air convection path to maximize the air heat exchange rate driven by the fan, thereby quickly and efficiently exhausting the air sensible heat in the rapid cooling area, and significantly improving the timeliness of high heat pretreatment.

[0129] Optionally, the control device controls the circulation switching assembly to connect the rapid cooling area to the cold air generation space for internal circulation cooling, comprising: the control device controls the air supply switching assembly to connect the second interface of the air supply three-way piece to the first interface; and the control device controls the return air switching assembly to connect the second interface of the return air three-way piece to the first interface.

[0130] In this way, the disclosure embodiments ensure accurate switching of the internal circulation cooling mode under the medium load condition by making the air supply tee piece and the second interface of the air return tee piece both communicate with the first interface, so that the rapid cooling area is kept in communication with the cold air generation space on the air supply and return passage. The disclosure embodiments can effectively integrate the rapid cooling area into the main refrigeration cycle, and use the stable cold source provided by the evaporator for fine cooling, thereby ensuring the refrigeration effect while minimizing the dependence on external circulation and the possible environmental humidity fluctuations.

[0131] Optionally, after the control device controls the cycle switching assembly to make the rapid cooling area communicate with the external space of the cabinet for external circulation cooling, the method further includes: the control device acquires the ambient temperature of the external space of the cabinet; and the control device controls the air supply fan to adjust the working speed according to the ambient temperature of the external space of the cabinet. The working speed of the air supply fan and the ambient temperature of the external space of the cabinet are negatively correlated.

[0132] In this way, by setting the air supply fan speed and the external environment temperature negatively correlated, the disclosure embodiments can realize energy efficiency self-adaptive optimization of external circulation cooling to ensure that the external circulation pretreatment process is always at the best energy efficiency ratio. When the external heat dissipation efficiency is low, the air supply fan power consumption can be appropriately reduced to reduce the additional energy consumption burden; when the external heat dissipation efficiency is high, the air supply fan performance can be fully utilized to maximize the heat exchange amount, thereby avoiding the waste of electric energy caused by inefficient operation under harsh environmental conditions.

[0133] Optionally, the control device controls the air supply fan to adjust the working speed according to the ambient temperature of the external space of the cabinet, including: when the ambient temperature of the external space of the cabinet is greater than or equal to a first cabinet external temperature, the control device outputs a first speed instruction to make the air supply fan operate at a low speed; or when the ambient temperature of the external space of the cabinet is less than the first cabinet external temperature and greater than a second cabinet external temperature, the control device outputs a second speed instruction to make the air supply fan operate at a medium speed; or when the ambient temperature of the external space of the cabinet is less than or equal to the second cabinet external temperature, the control device outputs a third speed instruction to make the air supply fan operate at a high speed.

[0134] In this way, the embodiment of the present disclosure can realize energy efficiency self-adaptive optimization in the external circulation pre-cooling process, and ensure that the heat load transfer efficiency is dynamically matched with the environmental conditions. By setting the first and second outdoor temperatures, the efficiency of the external environmental heat sink is divided into three levels, and the fan speed is dynamically matched. When the ambient temperature outside the cabinet is greater than or equal to the first outdoor temperature, the heat dissipation efficiency of the external environment is low at this time, and the system can output the first speed instruction to make the air supply fan run at a low speed, avoiding the high power consumption of the fan in the low efficiency state, and effectively reducing the waste of electric energy. When the ambient temperature outside the cabinet is less than the first outdoor temperature and greater than the second outdoor temperature, the heat dissipation efficiency of the external environment is moderate at this time, and the system can output the second speed instruction to make the air supply fan run at a medium speed, thereby balancing the cooling speed and energy consumption, and ensuring the stability and energy efficiency ratio of the pre-cooling process. When the ambient temperature outside the cabinet is less than or equal to the second outdoor temperature, the heat dissipation efficiency of the external environment is high at this time, and the system can output the third speed instruction to make the air supply fan run at a high speed, thereby maximizing the air exchange amount and heat dissipation rate, and significantly improving the speed of high heat load pre-processing.

[0135] Optionally, after the control device controls the circulation switching assembly to connect the rapid cooling area to the cold air generating space for internal circulation cooling, the control device further acquires a set temperature of the refrigeration area, and controls the first communication damper to adjust the working opening according to the temperature difference between the ambient temperature of the refrigeration area and the set temperature. The working opening of the first communication damper and the temperature difference between the ambient temperature of the refrigeration area and the set temperature are negatively correlated.

[0136] In this way, by setting the negative correlation between the first communication damper opening and the temperature difference of the refrigeration area, the embodiment of the present disclosure can realize self-adaptive flow adjustment of internal circulation cold air distribution, to ensure the intelligent dynamic scheduling of refrigeration resources in the internal circulation mode. When the temperature difference of the main refrigeration area is large, the first communication damper opening can be appropriately reduced, thereby reducing the priority of the rapid cooling area cold quantity distribution, and preferentially ensuring the temperature stability of the main refrigeration area. When the temperature difference of the main refrigeration area is small, the first communication damper opening can be appropriately increased, thereby increasing the priority of the rapid cooling area cold quantity distribution, to improve the rapid cooling effect of the rapid cooling area.

[0137] Optionally, the control device controls the first communication damper to adjust the working opening degree according to a temperature difference between the environment temperature of the refrigeration area and the set temperature, including: in a case where the temperature difference between the environment temperature of the refrigeration area and the set temperature is greater than or equal to a first refrigeration temperature difference, the control device outputs a first opening degree instruction to make the first communication damper slightly open; or in a case where the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than the first refrigeration temperature difference and greater than a second refrigeration temperature difference, the control device outputs a second opening degree instruction to make the first communication damper half open; or in a case where the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than or equal to the second refrigeration temperature difference, the control device outputs a third opening degree instruction to make the first communication damper fully open.

[0138] In this way, the embodiment of the present disclosure can realize dynamic priority management of internal circulation refrigeration resource allocation. By monitoring the temperature deviation of the refrigeration area, the system's cold energy allocation demand for the rapid cooling area is divided into three levels. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is greater than or equal to the first refrigeration temperature difference, it indicates that the temperature stability of the main refrigeration area is threatened, and the system can output a first opening degree instruction to make the first communication damper slightly open, thereby limiting the flow of cold air entering the rapid cooling area, preferentially allocating cold energy to the main refrigeration area, and ensuring the temperature stability of the core storage area of the refrigerator. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than the first refrigeration temperature difference and greater than the second refrigeration temperature difference, the system balances the demand of the refrigeration area and the rapid cooling area at this time, and can output a second opening degree instruction to make the first communication damper half open, for moderate cold energy allocation, thereby balancing the rapid cooling efficiency and the main area stability. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than or equal to the second refrigeration temperature difference, the temperature stability of the main refrigeration area at this time, the system can output a third opening degree instruction to make the first communication damper fully open, thereby maximizing the flow of cold air entering the rapid cooling area to meet the demand of rapid cooling at the fastest speed.

[0139] Optionally, the method for controlling the refrigerator further includes: the control device controls the second communication damper to adjust the working opening degree according to a temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area; and / or, the control device controls the return air damper to adjust the working opening degree according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area; and / or, the control device controls the return air fan to adjust the working rotating speed according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area. The working opening degree of the second communication damper, the working opening degree of the return air damper, and the working rotating speed of the return air fan are all positively correlated with the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area.

[0140] Thus, by setting the return air passage assembly work load and the temperature difference between the rapid cooling area and the refrigeration area in positive correlation, the embodiments of the present disclosure can realize dynamic flow and power ratio control of the internal and external circulation cooling process to avoid energy waste and excessive refrigeration caused by fixed-speed operation of the air door or fan. When the external heat dissipation efficiency is low, the supply fan power consumption can be appropriately reduced to reduce the additional energy consumption burden; when the external heat dissipation efficiency is high, the supply fan performance can be fully utilized to maximize the heat exchange amount, avoiding the waste of electric energy caused by inefficient operation in harsh environmental conditions.

[0141] Optionally, the control device controls the second communication air door to adjust the working opening degree according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area, including: in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, the control device outputs a third opening degree instruction to make the second communication air door fully open; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the control device outputs a second opening degree instruction to make the second communication air door half open; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first opening degree instruction to make the second communication air door slightly open.

[0142] Thus, the embodiments of the present disclosure can realize real-time demand matching of internal circulation return air flow, and fine regulation and control based on the actual heat load of the rapid cooling area. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third opening degree instruction to make the second communication air door fully open. Full opening of the air door can minimize the return air resistance and maximize the return and circulation efficiency of the hot air of the rapid cooling area to the cold air generation space, ensuring rapid heat exchange under high heat load. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, moderate flow control is performed, and the system can output a second opening degree instruction to make the second communication air door half open, which is conducive to balancing the cooling efficiency and fan operation energy consumption. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first opening degree instruction to make the second communication air door slightly open. Slight opening of the air door can meet the demand of fine temperature maintenance, reducing unnecessary air exchange and energy consumption.

[0143] Optionally, the control device controls the return air damper to adjust the working opening degree according to a temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area, including: in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to a first real-time temperature difference, the control device outputs a third opening degree instruction to make the return air damper fully open; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than a second real-time temperature difference, the control device outputs a second opening degree instruction to make the return air damper half open; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first opening degree instruction to make the return air damper slightly open.

[0144] In this way, the embodiment of the present disclosure can realize dynamic optimization of the return air side passage resistance of the quick cooling area to adapt to the convective heat exchange demand under different heat loads. When the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output the third opening degree instruction to make the return air damper fully open. The full opening of the damper can eliminate the limitation of the passage resistance on the air volume, ensure the discharge / extraction of the maximum air volume, and be beneficial to the heat discharge in the external circulation cooling or the heat extraction in the internal circulation cooling. When the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, moderate flow control is performed at this time, and the system can output the second opening degree instruction to make the return air damper half open, balancing the heat exchange demand and the air duct running noise. When the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output the first opening degree instruction to make the return air damper slightly open. The slight opening of the damper can meet the required weak convection for maintenance, and at the same time, fine return air flow control is realized, improving the running stability of the system.

[0145] Optionally, the control device controls the return air fan to adjust the working rotating speed according to a temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area, including: in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to a first real-time temperature difference, the control device outputs a third rotating speed instruction to make the return air fan run at a high rotating speed; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than a second real-time temperature difference, the control device outputs a third rotating speed instruction to make the return air fan run at a medium rotating speed; or in a case where the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first rotating speed instruction to make the return air fan run at a low rotating speed.

[0146] In this way, the embodiment of the present disclosure can realize dynamic load matching of the driving power of the return air fan, and is conducive to improving the energy efficiency ratio in the circulation mode. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third rotating speed instruction to make the return air fan operate at a high rotating speed. The high rotating speed can provide maximum air volume driving, so as to ensure that the system can discharge heat at maximum power when facing high heat load, and shorten the cooling period. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the system can output a second rotating speed instruction to make the return air fan operate at a medium rotating speed. The medium rotating speed takes into account the cooling effect and energy consumption, avoids unnecessary full-speed operation, and improves the economy of operation. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first rotating speed instruction to make the return air fan operate at a low rotating speed. The low rotating speed is used for temperature maintenance and low-power operation, realizes energy saving and emission reduction, and prolongs the service life of the fan.

[0147] Based on the above refrigerator, in combination with Figure 11 The embodiment of the present disclosure provides another method for controlling a refrigerator, which comprises the following steps of:

[0148] In S301, the control device acquires the pressure change of the rapid cooling area when detecting the refrigerator door opening and closing action.

[0149] In S302, the control device controls the circulation switching component to adjust the communication state of the rapid cooling area according to the pressure change of the rapid cooling area.

[0150] By using the method for controlling a refrigerator provided by the embodiment of the present disclosure, the pressure change of the rapid cooling area is acquired when detecting the refrigerator door opening and closing action, and the circulation switching component is intelligently controlled according to the pressure difference, so that the rapid cooling area is communicated with the external space of the cabinet for external circulation pre-cooling under the condition of high pressure difference heat load, and internal circulation cooling is performed under the condition of medium load, thereby realizing the ultra-fast identification and response to high heat load input based on the space pressure mutation caused by the rapid heat release of food. The embodiment of the present disclosure can quickly capture the heat load state of food, minimize the starting time of external circulation pre-treatment, is especially suitable for scenes that require immediate start of cooling, and greatly improves the real-time performance and timeliness of pre-cooling treatment. The embodiment of the present disclosure effectively solves the problem that in the prior art, when the heat load is extremely high, the single dependence on internal refrigeration mode leads to prolonged overall cooling period and causes additional energy consumption burden, thereby significantly shortening the overall pre-cooling period of food, greatly reducing the instantaneous load of the refrigeration component, and realizing faster cooling and food preservation capacity with higher energy efficiency ratio under all working conditions.

[0151] Optionally, the control device acquires the pressure change of the quick cooling area, including: in the case of detecting a refrigerator door opening action, the control device acquires an initial pressure of the quick cooling area; in the case of detecting a refrigerator door closing action, the control device acquires a real-time pressure of the quick cooling area; the control device calculates a pressure difference between the real-time pressure and the initial pressure of the quick cooling area to obtain the pressure change of the quick cooling area.

[0152] In this way, the disclosure embodiments can acquire the pressure change of the quick cooling area during user use of the refrigerator in combination with the initial pressure when the door is opened and the real-time pressure when the door is closed, and make full use of the fast response speed and high precision of the pressure sensor, ensuring the accuracy and sensitivity of pressure difference calculation, and facilitating the system to achieve fast and low-delay response.

[0153] Optionally, the control device controls the circulation switching assembly to adjust the communication state of the quick cooling area according to the pressure change of the quick cooling area, including: in the case that the pressure difference between the real-time pressure and the initial pressure of the quick cooling area is greater than or equal to a first pressure difference value, the control device controls the circulation switching assembly to make the quick cooling area communicate with the external space of the cabinet for external circulation cooling; in the case that the pressure difference between the real-time pressure and the initial pressure of the quick cooling area is less than the first pressure difference value and greater than a second pressure difference value, the control device controls the circulation switching assembly to make the quick cooling area communicate with the cold air generation space for internal circulation cooling; in the case that the pressure difference between the real-time pressure and the initial pressure of the quick cooling area is less than or equal to the second pressure difference value, the control device controls the circulation switching assembly to make the quick cooling area not communicate with the external space of the cabinet and the cold air generation space. The first pressure difference value is greater than the second pressure difference value.

[0154] In this way, the disclosure embodiments realize a three-level gradient heat load processing strategy based on the pressure difference value by setting the first pressure difference value and the second pressure difference value. When the pressure difference between the real-time pressure and the initial pressure of the quick cooling area is greater than or equal to the first pressure difference value, the system quickly determines that it is a high heat load impact, uses the fast response speed of the pressure sensor, and immediately starts external circulation cooling to quickly release the pressure in the quick cooling area and discharge high-heat air, realizing the lowest delay response to instantaneous high heat impact. When the pressure difference is less than the first pressure difference value and greater than the second pressure difference value, the system determines that it is a medium heat load, starts internal circulation cooling, and connects the quick cooling area to the main refrigeration cycle for fine cooling, avoiding unnecessary external air exchange. When the pressure difference is less than or equal to the second pressure difference value, the system makes the quick cooling area not communicate with any cycle, corresponding to a low heat load condition, and reasonably maintains the stability of the internal environment of the quick cooling area. This grading strategy ensures the ultra-fast response of the system to sudden heat loads, eliminates the potential safety impact of high internal pressure caused by high heat on the structure of the quick cooling area by timely pressure relief, and greatly improves the real-time performance and timeliness of the system.

[0155] Optionally, the control device controls the circulation switching assembly to connect the quick cooling area to the outside space of the cabinet for external circulation cooling, comprising: the control device controls the air supply switching assembly to connect the second interface of the air supply tee joint to the third interface; and the control device controls the return air switching assembly to connect the second interface of the return air tee joint to the third interface.

[0156] In this way, the second interface of the air supply tee joint and the return air tee joint are both connected to the third interface, so that the quick cooling area is connected to the outside space of the cabinet in the air supply and return air passage, thereby ensuring accurate switching of the external circulation cooling mode under high heat load conditions. The embodiment of the present disclosure can establish a complete and large air volume external air convection path to maximize the air heat exchange rate driven by the fan, thereby quickly and efficiently discharging the air sensible heat in the quick cooling area, and significantly improving the timeliness of high heat pretreatment.

[0157] Optionally, the control device controls the circulation switching assembly to connect the quick cooling area to the cold air generation space for internal circulation cooling, comprising: the control device controls the air supply switching assembly to connect the second interface of the air supply tee joint to the first interface; and the control device controls the return air switching assembly to connect the second interface of the return air tee joint to the first interface.

[0158] In this way, the second interface of the air supply tee joint and the return air tee joint are both connected to the first interface, so that the quick cooling area is connected to the cold air generation space in the air supply and return air passage, thereby ensuring accurate switching of the internal circulation cooling mode under medium load conditions. The embodiment of the present disclosure can effectively integrate the quick cooling area into the main refrigeration cycle, and use the stable cold source provided by the evaporator for fine cooling, while ensuring the refrigeration effect, and minimizing the dependence on external circulation and the possible environmental humidity fluctuations.

[0159] Optionally, after the control device controls the circulation switching assembly to connect the quick cooling area to the outside space of the cabinet for external circulation cooling, the method further comprises: the control device acquires the ambient temperature of the outside space of the cabinet; and the control device controls the air supply fan to adjust the working speed according to the ambient temperature of the outside space of the cabinet. The working speed of the air supply fan and the ambient temperature of the outside space of the cabinet are negatively correlated.

[0160] In this way, by setting the air supply fan speed and the external ambient temperature to be negatively correlated, the embodiment of the present disclosure can realize energy efficiency self-adaptive optimization of external circulation cooling to ensure that the external circulation pretreatment process is always in the best energy efficiency ratio. When the external heat dissipation efficiency is low, the air supply fan power consumption can be appropriately reduced to reduce the additional energy consumption burden; when the external heat dissipation efficiency is high, the performance of the air supply fan can be fully utilized to maximize the heat exchange amount, thereby avoiding the waste of electric energy caused by inefficient operation under harsh environmental conditions.

[0161] Optionally, the control device controls the air supply fan to adjust the working rotating speed according to the ambient temperature of the space outside the cabinet, including: in the case that the ambient temperature of the space outside the cabinet is greater than or equal to the first cabinet outside temperature, the control device outputs a first rotating speed instruction to enable the air supply fan to operate at a low rotating speed; or in the case that the ambient temperature of the space outside the cabinet is less than the first cabinet outside temperature and greater than the second cabinet outside temperature, the control device outputs a second rotating speed instruction to enable the air supply fan to operate at a medium rotating speed; or in the case that the ambient temperature of the space outside the cabinet is less than or equal to the second cabinet outside temperature, the control device outputs a third rotating speed instruction to enable the air supply fan to operate at a high rotating speed.

[0162] In this way, the embodiment of the present disclosure can realize energy efficiency adaptive optimization in the external circulation pre-cooling process, and ensure that the heat load transfer efficiency is dynamically matched with the environmental conditions. By setting the first cabinet outside temperature and the second cabinet outside temperature, the efficiency of the external environment heat sink is divided into three levels, and the rotating speed of the air supply fan is dynamically matched. When the ambient temperature of the space outside the cabinet is greater than or equal to the first cabinet outside temperature, the heat dissipation efficiency of the external environment is low at this time, the system can output a first rotating speed instruction to enable the air supply fan to operate at a low rotating speed, thereby avoiding high power consumption of the fan in the low efficiency state, and effectively reducing the waste of electric energy. When the ambient temperature of the space outside the cabinet is less than the first cabinet outside temperature and greater than the second cabinet outside temperature, the heat dissipation efficiency of the external environment is moderate at this time, the system can output a second rotating speed instruction to enable the air supply fan to operate at a medium rotating speed, thereby balancing the cooling speed and energy consumption, and ensuring the stability and energy efficiency ratio of the pre-cooling process. When the ambient temperature of the space outside the cabinet is less than or equal to the second cabinet outside temperature, the heat dissipation efficiency of the external environment is high at this time, the system can output a third rotating speed instruction to enable the air supply fan to operate at a high rotating speed, thereby maximizing the air exchange amount and heat dissipation rate, and significantly improving the speed of high heat load pre-processing.

[0163] Optionally, after the control device controls the circulation switching assembly to connect the rapid cooling area to the cold air generation space for internal circulation cooling, the control device further controls the first communication damper to adjust the working opening degree according to the temperature difference between the ambient temperature of the refrigeration area and the set temperature of the refrigeration area. The working opening degree of the first communication damper and the temperature difference between the ambient temperature of the refrigeration area and the set temperature of the refrigeration area are negatively correlated.

[0164] In this way, by setting the first communication damper opening degree and the negative correlation between the temperature difference of the refrigeration area, the embodiment of the disclosure can realize adaptive flow regulation of the internal circulation cold air distribution to ensure intelligent dynamic scheduling of refrigeration resources in the internal circulation mode. When the temperature difference of the main refrigeration area is large, the first communication damper opening degree can be appropriately reduced, thereby reducing the cold quantity distribution priority of the rapid cooling area and preferentially ensuring the temperature stability of the main refrigeration area. When the temperature difference of the main refrigeration area is small, the first communication damper opening degree can be appropriately increased, thereby increasing the cold quantity distribution priority of the rapid cooling area to improve the rapid cooling effect of the rapid cooling area.

[0165] Optionally, the control device controls the first communication damper to adjust the working opening degree according to the temperature difference between the environment temperature of the refrigeration area and the set temperature, including: in the case that the temperature difference between the environment temperature of the refrigeration area and the set temperature is greater than or equal to a first refrigeration temperature difference, the control device outputs a first opening degree instruction to slightly open the first communication damper; or in the case that the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than the first refrigeration temperature difference and greater than a second refrigeration temperature difference, the control device outputs a second opening degree instruction to half-open the first communication damper; or in the case that the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than or equal to the second refrigeration temperature difference, the control device outputs a third opening degree instruction to fully open the first communication damper.

[0166] In this way, the embodiment of the disclosure can realize dynamic priority management of internal circulation refrigeration resource distribution. By monitoring the temperature deviation of the refrigeration area, the system's cold quantity distribution demand for the rapid cooling area is divided into three levels. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is greater than or equal to a first refrigeration temperature difference, it indicates that the temperature stability of the main refrigeration area is threatened, and the system can output a first opening degree instruction to slightly open the first communication damper, thereby limiting the flow of cold air entering the rapid cooling area, preferentially distributing cold quantity to the main refrigeration area, and ensuring the temperature stability of the core storage area of the refrigerator. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than the first refrigeration temperature difference and greater than a second refrigeration temperature difference, the system balances the demand of the refrigeration area and the rapid cooling area at this time, and can output a second opening degree instruction to half-open the first communication damper for moderate cold quantity distribution, thereby taking into account the rapid cooling efficiency and the main area stability. When the temperature difference between the environment temperature of the refrigeration area and the set temperature is less than or equal to the second refrigeration temperature difference, the temperature stability of the main refrigeration area at this time, the system can output a third opening degree instruction to fully open the first communication damper, thereby maximizing the flow of cold air entering the rapid cooling area to meet the demand of rapid cooling at the fastest speed.

[0167] Optionally, the method for controlling the refrigerator further comprises: the control device controls the second communication damper to adjust the working opening degree according to the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area; and / or, the control device controls the return air damper to adjust the working opening degree according to the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area; and / or, the control device controls the return air fan to adjust the working rotating speed according to the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area. The working opening degree of the second communication damper, the working opening degree of the return air damper, and the working rotating speed of the return air fan are all positively correlated with the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area.

[0168] In this way, by setting the working amount of the return air passage assembly to be positively correlated with the temperature difference between the quick cooling area and the refrigeration area, the dynamic flow rate and power ratio control of the internal and external circulation cooling process can be achieved, so as to avoid the energy waste and excessive refrigeration caused by the fixed-speed operation of the damper or fan. When the external heat dissipation efficiency is low, the power consumption of the air supply fan can be appropriately reduced, and the additional energy consumption burden can be reduced; when the external heat dissipation efficiency is high, the performance of the air supply fan can be fully utilized, and the heat exchange amount is maximized, so that the waste of electric energy caused by the low-efficiency operation under harsh environmental conditions is avoided.

[0169] Optionally, the control device controls the second communication damper to adjust the working opening degree according to the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area, comprising: in the case that the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, the control device outputs a third opening degree instruction to make the second communication damper fully open; or, in the case that the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the control device outputs a second opening degree instruction to make the second communication damper half open; or, in the case that the temperature difference between the real-time temperature of the quick cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first opening degree instruction to make the second communication damper slightly open.

[0170] In this way, the embodiments of the present disclosure can realize real-time demand matching of internal circulation return air flow, and fine regulation based on the actual heat load of the rapid cooling area. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third opening degree instruction to make the second communication air door fully open. Full opening of the air door can minimize the return air resistance and maximize the extraction and circulation efficiency of the cold air generation space on the hot air of the rapid cooling area, ensuring rapid heat exchange under high heat load. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, moderate flow control is performed, and the system can output a second opening degree instruction to make the second communication air door half open, which is conducive to balancing the cooling efficiency and fan operation energy consumption. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first opening degree instruction to make the second communication air door slightly open. The slightly open air door can meet the demand of fine temperature maintenance, and unnecessary air exchange and energy consumption are reduced.

[0171] Optionally, the control device controls the return air door to adjust the working opening degree according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area, including: in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, the control device outputs a third opening degree instruction to make the return air door fully open; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the control device outputs a second opening degree instruction to make the return air door half open; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first opening degree instruction to make the return air door slightly open.

[0172] In this way, the embodiment of the present disclosure can realize dynamic optimization of the return air side passage resistance of the rapid cooling area to adapt to the convective heat exchange demand under different heat loads. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third opening degree instruction to make the return air damper fully open. The fully open damper can eliminate the limitation of the passage resistance on the air volume, ensure the discharge / extraction of the maximum air volume, and be beneficial to the heat discharge during external circulation cooling or the heat extraction during internal circulation cooling. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, moderate flow control is performed, and the system can output a second opening degree instruction to make the return air damper half open, balancing the heat exchange demand and the air duct operation noise. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first opening degree instruction to make the return air damper slightly open. The slightly open damper can meet the required weak convection for maintenance, and at the same time realize fine return air flow control and improve the running stability of the system.

[0173] Optionally, the control device controls the return air fan to adjust the working speed according to the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area, including: in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, the control device outputs a third speed instruction to make the return air fan operate at a high speed; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the control device outputs a third speed instruction to make the return air fan operate at a medium speed; or in the case that the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, the control device outputs a first speed instruction to make the return air fan operate at a low speed.

[0174] Thus, the embodiment of the present disclosure can realize dynamic load matching of the driving power of the return air fan, and is conducive to improving the energy efficiency ratio in the circulation mode. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is greater than or equal to the first real-time temperature difference, it means that the cooling demand is high, and the system can output a third rotation speed instruction to make the return air fan operate at a high rotation speed. The high rotation speed can provide maximum air volume driving, ensuring that the system can discharge heat at maximum power when facing high heat load, and shortening the cooling period. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than the first real-time temperature difference and greater than the second real-time temperature difference, the system can output a second rotation speed instruction to make the return air fan operate at a medium rotation speed. The medium rotation speed takes into account the cooling effect and energy consumption, avoids unnecessary full-speed operation, and improves the economy of operation. When the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area is less than or equal to the second real-time temperature difference, it means that the cooling process is close to the end or the demand is low, and the system can output a first rotation speed instruction to make the return air fan operate at a low rotation speed. The low rotation speed is used for temperature maintenance and low-power operation, realizes energy saving and emission reduction, and prolongs the service life of the fan.

[0175] Based on the above refrigerator, in combination with Figure 12 The embodiment of the present disclosure provides another method for controlling a refrigerator, comprising:

[0176] S401, in the case of detecting the refrigerator door opening action, the control device acquires the environment information of the rapid cooling area.

[0177] S402, in the case that the environment information of the rapid cooling area meets the high-heat food material condition, the control device controls the circulation switching component to make the rapid cooling area unidirectionally communicate with the outside space of the box body in a first direction.

[0178] The first direction is to make the air flow from the rapid cooling area to the outside space of the box body.

[0179] S403, in the case that the environment information of the rapid cooling area meets the low-pressure environment condition, the control device controls the circulation switching component to make the rapid cooling area not communicate with the outside space of the box body.

[0180] The method for controlling the refrigerator provided by the embodiment of the present disclosure can control the circulation switching assembly to make the rapid cooling area communicate with the outside space of the refrigerator in the first direction for rapid air extraction when the environment information of the rapid cooling area meets the high-heat food condition, and control the circulation switching assembly to make the rapid cooling area not communicate with the outside space of the refrigerator for sealing low pressure when the environment information meets the low-pressure environment condition. The embodiment of the present disclosure forms and maintains a low-pressure environment in the rapid cooling area by active and directional air extraction, so that the physical property of the boiling point of water being reduced under low pressure can be used to make the free water on the surface or inside of the food rapidly vaporize and absorb a large amount of latent heat of vaporization, and the initial cooling capacity of super-fast and large temperature difference can be obtained without the intervention of the refrigeration assembly. The embodiment of the present disclosure effectively solves the problem that the overall cooling period is prolonged and additional energy consumption burden is caused by the single dependence on the internal refrigeration mode when the heat load is extremely high in the prior art, thereby significantly shortening the overall precooling period of the food, greatly reducing the instantaneous load of the refrigeration assembly, and realizing the rapid cooling and food preservation capacity with higher energy efficiency ratio under all working conditions.

[0181] Optionally, the high-heat food condition comprises: the real-time temperature of the rapid cooling area being greater than or equal to the high-heat food temperature; and / or, the temperature difference between the real-time temperature of the rapid cooling area and the real-time temperature of the refrigeration area being greater than or equal to the first temperature difference; and / or, the humidity difference between the real-time humidity of the rapid cooling area and the initial humidity being greater than or equal to the first humidity difference; and / or, the pressure difference between the real-time pressure of the rapid cooling area and the initial pressure being greater than or equal to the first pressure difference.

[0182] In this way, the embodiment of the present disclosure provides accurate start and stop conditions for the low-pressure cooling mode. By integrating the multi-dimensional parameters of the real-time temperature, temperature difference, humidity difference and pressure difference of the high-heat food condition, the robustness of the system in identifying various high-heat loads is ensured, especially for the high sensitivity to wet heat load, and the false judgment of a single parameter is prevented.

[0183] Optionally, the low-pressure environment condition comprises: the real-time pressure of the rapid cooling area being less than or equal to the set low-pressure pressure.

[0184] In this way, the low-pressure environment condition can ensure that the air extraction process reaches the ideal low-pressure working point, and under the low-pressure environment, the moisture inside the food can evaporate rapidly, taking away a large amount of latent heat, realizing efficient cooling, and avoiding poor cooling effect caused by insufficient pressure reduction.

[0185] Optionally, the control device controls the circulation switching assembly to make the rapid cooling area communicate with the outside space of the refrigerator in the first direction, comprising: the control device controls the return air switching assembly to make the second interface of the return air tee joint communicate with the third interface, so that the air in the rapid cooling area flows out of the outside space of the refrigerator.

[0186] In this way, by making the second interface of the return air tee piece communicate with the third interface and making the second interface of the air supply tee piece not communicate with the third interface, the rapid cooling area can be unidirectionally communicated to the outside space of the box in the first direction to perform rapid air extraction, so that a low-pressure environment is efficiently established in the rapid cooling area, and a subsequent rapid cooling process is facilitated. This rapid and directional air exhaust mechanism provides a physical basis for the accelerated evaporation of food moisture, and significantly improves the cooling efficiency.

[0187] Optionally, the control device controls the cycle switching assembly to make the rapid cooling area not communicate with the outside space of the box, including: the control device controls the return air switching assembly to make the second interface of the return air tee piece not communicate with the third interface, so that the air in the rapid cooling area stops flowing out of the outside space of the box.

[0188] In this way, by making the second interface of the return air tee piece not communicate with the third interface, and making the second interface of the air supply tee piece not communicate with the third interface, the rapid cooling area can be isolated to realize a sealed low-pressure environment. The embodiment of the present disclosure can realize accurate maintenance of the low-pressure state, ensuring that water can continue to evaporate and absorb heat in a low-pressure environment, while avoiding additional energy consumption.

[0189] Optionally, after the control device controls the cycle switching assembly to make the rapid cooling area not communicate with the outside space of the box, in the case that the environment information of the rapid cooling area meets the low-pressure environment condition, the method further includes: in the case that the environment information of the rapid cooling area meets the temperature stabilization condition, the control device controls the cycle switching assembly to make the rapid cooling area unidirectionally communicate with the outside space of the box in a second direction; the second direction is to make the air flow from the outside space of the box to the rapid cooling area; and in the case that the environment information of the rapid cooling area meets the normal-pressure environment condition, the control device controls the cycle switching assembly to make the rapid cooling area not communicate with the outside space of the box.

[0190] In this way, the embodiment of the present disclosure supplements the environment recovery and cycle establishment process after low-pressure cooling, that is, stopping air exhaust after the low-pressure environment condition is met, then making the air in the outside space of the box flow into the rapid cooling area for air charging under the temperature stabilization condition, and stopping the communication of any cycle under the normal-pressure environment condition. Therefore, the embodiment of the present disclosure can construct a reciprocating cycle mechanism of air extraction-air standing (cooling)-air charging-air standing (normal pressure). In the air standing cooling stage, the embodiment of the present disclosure can utilize the latent heat of vaporization in the low-pressure environment to achieve rapid refrigeration. After the temperature reaches a stable or cooling target, the environment pressure can be recovered by supplementing external air, avoiding the negative effects of a long low-pressure state, and preparing for the iteration of the next cooling cycle. The embodiment of the present disclosure ensures the continuity and safety of the cooling process, and improves the efficiency and reliability of low-pressure cooling.

[0191] Optionally, the temperature stabilization condition comprises that a real-time temperature change rate of the rapid cooling area is less than or equal to a preset temperature change rate.

[0192] In this way, the temperature stabilization condition can determine whether the food material temperature has reached a saturated cooling state, so as to indicate the system to end the current low-pressure cooling process in time and prepare for the iteration of the next cooling cycle.

[0193] Optionally, the atmospheric environment condition comprises that a real-time pressure of the rapid cooling area is greater than or equal to a set atmospheric pressure.

[0194] In this way, the atmospheric environment condition can determine whether the air recovery has reached a safe pressure range, so as to realize accurate timing management of the low-pressure cycle process and guarantee the structural safety of the rapid cooling area.

[0195] Optionally, the control device controls the cycle switching assembly to make the rapid cooling area unidirectionally communicate with the external space of the cabinet in the second direction, comprising: the control device controls the return air switching assembly to make the second interface of the air supply tee joint communicate with the third interface, so that the air in the external space of the cabinet flows into the rapid cooling area.

[0196] In this way, by making the second interface of the air supply tee joint communicate with the third interface and the second interface of the return air tee joint not communicate with the third interface, the rapid cooling area can be unidirectionally communicated with the external space of the cabinet in the second direction for rapid air charging, so as to realize the rapid and directional inflow of external air, rapidly recover the pressure of the rapid cooling area to the atmospheric pressure, and be beneficial to guarantee the structural safety of the rapid cooling area and the pressure balance with the external environment.

[0197] Optionally, after the control device controls the cycle switching assembly to make the rapid cooling area not communicate with the external space of the cabinet in the case that the environmental information of the rapid cooling area meets the atmospheric environment condition, the control device further comprises: cyclically executing the following steps until the environmental information of the rapid cooling area does not meet the high-heat food material condition: in the case that the environmental information of the rapid cooling area still meets the high-heat food material condition, controlling the cycle switching assembly to make the rapid cooling area unidirectionally communicate with the external space of the cabinet in the first direction; in the case that the environmental information of the rapid cooling area meets the low-pressure environment condition, controlling the cycle switching assembly to make the rapid cooling area not communicate with the external space of the cabinet; in the case that the environmental information of the rapid cooling area meets the temperature stabilization condition, controlling the cycle switching assembly to make the rapid cooling area unidirectionally communicate with the external space of the cabinet in the second direction; and in the case that the environmental information of the rapid cooling area meets the atmospheric environment condition, controlling the cycle switching assembly to make the rapid cooling area not communicate with the external space of the cabinet.

[0198] In this way, the embodiments of the present disclosure can realize the reciprocating iteration of the low-pressure cooling process to ensure the continuous and efficient processing of extremely high heat load. Each complete "air extraction-standby (cooling)-air filling-standby (normal pressure)" cycle utilizes the principle of low-pressure accelerated evaporation to quickly remove the large amount of vaporization heat carried by the food. The embodiments of the present disclosure cycle the process through the control device until the heat load of the food is reduced to a safe range, i.e., no longer meets the high-heat food condition, and can switch to the next stage of the normal refrigeration mode. The embodiments of the present disclosure significantly improve the overall pre-cooling efficiency of extremely high heat load, effectively avoid the problem of insufficient cooling of single low-pressure process, and ensure that the food can be continuously and stably cooled quickly, realizing higher energy efficiency ratio of rapid cooling and food preservation capacity.

[0199] Optionally, the set low-pressure pressure corresponding to the low-pressure environment condition is gradually reduced.

[0200] In this way, the embodiments of the present disclosure can realize the self-adaptive optimization of the pressure reduction depth of the low-pressure cooling process. In the reciprocating cycle cooling process, the set low-pressure pressure is gradually reduced, which means that each cooling cycle will reach a lower pressure point. According to the principle of low-pressure evaporation, lower pressure will correspond to lower water boiling point, thereby continuously improving the evaporation rate and latent heat absorption of food moisture in subsequent cycles. This gradually decreasing pressure setting effectively overcomes the problem of reduced cooling efficiency after the surface temperature of the food decreases, ensuring the continuous efficiency and deep cooling effect in the low-pressure cooling mode.

[0201] Optionally, the method for controlling the refrigerator further comprises: in the case that the environment information of the rapid cooling area meets the medium-heat food condition, the control device controls the circulation switching component to make the rapid cooling area communicate with the cold air generation space for internal circulation cooling; in the case that the environment information of the rapid cooling area does not meet the high-heat food condition and the medium-heat food condition, the control device controls the circulation switching component to make the rapid cooling area not communicate with the external space of the box body and the cold air generation space.

[0202] Thus, this embodiment of the present disclosure can intelligently control the circulation switching component to adjust the current connection state based on the environmental information of the rapid cooling zone. When the conditions for high-heat food are met, the system quickly determines that it is a high heat load and can connect the rapid cooling zone to the external space of the cabinet in one direction to build a reciprocating circulation mechanism of evacuation-settling (cooling)-inflating-settling (normal pressure), thereby achieving rapid cooling using a low-pressure environment. When the conditions for medium-heat food are met, the system determines that it is a medium heat load and starts the internal circulation for fine cooling. When neither the conditions for high-heat nor medium-heat food are met, the system determines that the temperature of the rapid cooling zone has reached the cooling target, and the system promptly disconnects the rapid cooling zone from any circulation to continue to maintain a stable internal temperature in the rapid cooling zone. This embodiment of the present disclosure effectively solves the problem in the prior art where relying solely on the internal cooling method when the heat load is extremely high leads to a prolonged overall cooling cycle and additional energy consumption burden, thereby significantly shortening the overall pre-cooling cycle of the food, greatly reducing the instantaneous load of the refrigeration components, and achieving a higher energy efficiency ratio for rapid cooling and food preservation under all operating conditions.

[0203] Optionally, the conditions for medium-heat food include: the real-time temperature of the rapid cooling zone is lower than the temperature of high-heat food but higher than the temperature of medium-heat food; and / or, the temperature difference between the real-time temperature of the rapid cooling zone and the real-time temperature of the refrigeration zone is less than a first temperature difference but greater than a second temperature difference; and / or, the humidity difference between the real-time humidity of the rapid cooling zone and the initial humidity is less than a first humidity difference but greater than a second humidity difference; and / or, the pressure difference between the real-time pressure of the rapid cooling zone and the initial pressure is less than a first pressure difference but greater than a second pressure difference.

[0204] Thus, this embodiment of the disclosure clarifies the multi-dimensional parameter integration judgment logic for medium-heat food conditions. When real-time temperature, temperature difference, humidity difference, and pressure difference indicate that the heat load is between high and low heat, the system determines it to be medium heat and can activate the more energy-efficient internal circulation cooling. Therefore, this embodiment of the disclosure reduces the possibility of misjudgment based on a single parameter and ensures accurate management of food in internal circulation cooling mode, achieving an optimized balance between cooling efficiency and energy consumption.

[0205] Combination Figure 13 As shown, this disclosure provides an apparatus 800 for controlling a refrigerator, including a processor 801 and a memory 802. Optionally, the apparatus 800 may further include a communication interface 803 and a bus 804. The processor 801, communication interface 803, and memory 802 can communicate with each other via the bus 804. The communication interface 803 can be used for information transmission. The processor 801 can call logical instructions in the memory 802 to execute the method for controlling the refrigerator described in the above embodiment.

[0206] In addition, the logic instructions in the memory 802 described above can be implemented in the form of software function units and sold or used as independent products, and can be stored in a computer readable storage medium.

[0207] The memory 802 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 801 executes the program instructions / modules stored in the memory 802, thereby performing function applications and data processing, that is, implementing the method for controlling the refrigerator in the above embodiments.

[0208] The memory 802 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and application programs required by at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 802 can include a high-speed random access memory, and can also include a non-volatile memory.

[0209] The embodiments of the present disclosure provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the method for controlling the refrigerator.

[0210] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, for example: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0211] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0212] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0213] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0214] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling a refrigerator, characterized in that, The refrigerator includes: a cabinet with a refrigeration space, the refrigeration space including a rapid cooling zone and a refrigeration zone; a refrigeration component disposed within the cabinet, the refrigeration component defining a cold air generation space; and a circulation switching component connected to the rapid cooling zone, the circulation switching component selectively connecting the rapid cooling zone to the cold air generation space or connecting the rapid cooling zone to an external space of the cabinet; the method includes: Upon detecting the opening and closing of the refrigerator door, the initial and real-time humidity of the rapid cooling zone are obtained; Based on the humidity difference between the real-time humidity and the initial humidity in the rapid cooling zone, the circulation switching component is controlled to adjust the connectivity of the rapid cooling zone.

2. The method according to claim 1, characterized in that, The step of acquiring the initial and real-time humidity of the rapid cooling zone upon detecting the opening and closing of the refrigerator door includes: When the refrigerator door is detected to be open, the initial humidity of the rapid cooling zone is obtained; The system acquires the real-time humidity of the rapid-cooling zone upon detecting the refrigerator door closing action.

3. The method according to claim 1, characterized in that, The step of controlling the cycle switching component to adjust the connectivity state of the rapid cooling zone based on the humidity difference between the real-time humidity and the initial humidity of the rapid cooling zone includes: If the difference between the real-time humidity and the initial humidity in the rapid cooling zone is greater than or equal to the first humidity difference, the control circulation switching component connects the rapid cooling zone to the external space of the chamber for external circulation cooling. When the difference between the real-time humidity and the initial humidity in the rapid cooling zone is less than the first humidity difference but greater than the second humidity difference, the control circulation switching component connects the rapid cooling zone to the cold air generation space for internal circulation cooling. When the difference between the real-time humidity and the initial humidity in the rapid cooling zone is less than or equal to the second humidity difference, the control cycle switching component is used to prevent the rapid cooling zone from being connected to the external space of the cabinet and the cold air generation space. The first humidity difference is greater than the second humidity difference.

4. The method according to claim 3, characterized in that, The circulation switching component includes: an air supply tee, whose first interface is directly or indirectly connected to the cold air generation space, its second interface is connected to the rapid cooling zone, and its third interface is connected to the external space of the housing; an air supply switching component disposed on the air supply tee, the air supply switching component selectively connecting the second interface of the air supply tee to the first interface or the third interface; a return air tee, whose first interface is directly or indirectly connected to the cold air generation space, its second interface is connected to the rapid cooling zone, and its third interface is connected to the external space of the housing; and a return air switching component disposed on the return air tee, the return air switching component selectively connecting the second interface of the return air tee to the first interface or the third interface; the control of the circulation switching component to connect the rapid cooling zone to the external space of the housing for external circulation cooling includes: The control air supply switching component connects the second interface of the air supply tee to the third interface; The return air switching component is controlled to connect the second interface of the return air tee to the third interface.

5. The method according to claim 4, characterized in that, The air supply switching component includes: an air supply fan, disposed at one of the second and third interfaces of the air supply tee; after the control circulation switching component connects the rapid cooling zone to the external space of the cabinet for external circulation cooling, it further includes: Obtain the ambient temperature of the external space of the enclosure; The operating speed of the air supply fan is adjusted according to the ambient temperature of the external space of the enclosure. Among them, the operating speed of the air supply fan is negatively correlated with the ambient temperature of the external space of the enclosure.

6. The method according to claim 3, characterized in that, The circulation switching component includes: an air supply tee, whose first interface is directly or indirectly connected to the cold air generation space, its second interface is connected to the rapid cooling zone, and its third interface is connected to the external space of the housing; an air supply switching component disposed on the air supply tee, the air supply switching component selectively connecting the second interface of the air supply tee to the first interface or the third interface; a return air tee, whose first interface is directly or indirectly connected to the cold air generation space, its second interface is connected to the rapid cooling zone, and its third interface is connected to the external space of the housing; and a return air switching component disposed on the return air tee, the return air switching component selectively connecting the second interface of the return air tee to the first interface or the third interface; the control of the circulation switching component to connect the rapid cooling zone to the cold air generation space for internal circulation cooling includes: The control air supply switching component connects the second interface of the air supply tee to the first interface; The control return air switching component connects the second interface of the return air tee to the first interface.

7. The method according to any one of claims 1 to 6, characterized in that, Also includes: When the refrigerator door is detected to be opening or closing, the pressure changes in the rapid cooling zone are obtained. Based on the pressure changes in the rapid cooling zone, the circulation switching component is controlled to adjust the connectivity of the rapid cooling zone.

8. A device for controlling a refrigerator, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to perform, when executing the program instructions, the method for controlling a refrigerator as described in any one of claims 1 to 7.

9. A refrigerator, characterized in that, include: The cabinet has a refrigerated space, which includes a rapid cooling zone and a refrigerated zone. A refrigeration component is disposed inside the housing, and the refrigeration component defines a space for generating cold air. A circulation switching component is connected to the rapid cooling zone, which can selectively connect the rapid cooling zone to the cold air generation space or connect the rapid cooling zone to the external space of the cabinet. The device for controlling a refrigerator as described in claim 8 is installed in the refrigerator body and electrically connected to the cycle switching component.

10. A computer-readable storage medium storing program instructions, characterized in that, When the program instructions are executed, they cause the computer to perform the method for controlling the refrigerator as described in any one of claims 1 to 7.

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