Refrigeration control method, electronic device, and refrigerator

Abstract

This application provides a refrigeration control method, electronic device, and refrigerator. The method includes: when switching to refrigeration mode, starting the refrigeration fan and evaporator, and opening the damper to deliver cooling capacity to the refrigeration compartment; when switching to freezing mode, starting the freezing evaporator to deliver cooling capacity to the freezing compartment; and turning off the refrigeration fan and evaporator to retain the remaining cooling capacity in the evaporator; when the refrigeration replenishment conditions are met, restarting the refrigeration fan to deliver the remaining cooling capacity in the evaporator to the refrigeration compartment; and turning off the refrigeration fan when the temperature of the evaporator reaches a preset first threshold, which can prevent the temperature in the refrigeration compartment from continuing to drop after refrigeration is completed, thereby preventing food from freezing; and can make reasonable use of the remaining cooling capacity in the evaporator, effectively reducing temperature fluctuations in the refrigeration compartment and improving the preservation effect.

Description

Technical Field

[0001] This application relates to refrigeration technology, and more particularly to a refrigeration control method, electronic equipment, and refrigerator. Background Technology

[0002] A refrigerator is an essential household appliance. It typically consists of a cabinet and an inner liner. An insulation structure separates the liner from the cabinet to reduce cold air loss and thus lower energy consumption. The storage space of a refrigerator usually includes a refrigerator compartment and a freezer compartment; some refrigerators also have a variable temperature compartment. Shelves or drawers can be installed within each storage compartment to divide it into multiple storage areas.

[0003] In typical refrigerators, the evaporator, refrigerator fan, refrigerator damper, and air vents are located at the back of the refrigerator compartment. When the refrigerator fan is activated and the damper is open, the cooling energy generated by the evaporator is delivered into the refrigerator compartment via the air vents. Technicians have found that even after cooling is stopped, the temperature inside the refrigerator compartment continues to drop significantly, resulting in excessively low temperatures, especially near the air vents, where the temperature can fall more than 3°C below the preset temperature. This causes food in that area to freeze easily.

[0004] In addition, the temperature is lower in areas closer to the air vents within the cold storage room, and higher in areas farther away, resulting in uneven temperature distribution and poor preservation. Furthermore, because hot air rises, the upper areas of the cold storage room experience greater temperature fluctuations and more significant temperature changes, which is also detrimental to food preservation. Summary of the Invention

[0005] To address one of the aforementioned technical deficiencies, this application provides a refrigeration control method, an electronic device, and a refrigerator.

[0006] According to a first aspect of the embodiments of this application, a refrigeration control method is provided, characterized in that it can be applied to a refrigerator; the refrigerator includes a refrigerator compartment and a freezer compartment, a refrigerator evaporator is correspondingly provided in the refrigerator compartment, and a freezer evaporator is correspondingly provided in the freezer compartment; the refrigerator compartment is provided with an air outlet, the air outlet is connected to an air supply duct, the air supply duct is provided with a refrigerator fan and a refrigerator evaporator, and the air supply duct is also provided with a damper for controlling the opening and closing of the air supply duct; Refrigeration control methods include: When switching to refrigeration mode, start the refrigeration fan and evaporator, and open the damper to deliver cooling capacity to the refrigeration compartment; When switching to refrigeration mode, the refrigeration evaporator is started to deliver cold energy to the freezer compartment for cooling; and the refrigeration fan and refrigeration evaporator are turned off to retain the remaining cold energy in the refrigeration evaporator. When the conditions for refrigeration replenishment are met, restart the refrigeration fan to transfer the remaining cold energy in the refrigeration evaporator to the refrigeration compartment. When the temperature of the refrigeration evaporator reaches the preset first threshold, the refrigeration fan is turned off.

[0007] According to a second aspect of the embodiments of this application, an electronic device is provided, comprising: Memory; Processor; and Computer programs; The computer program is stored in the memory and configured to be executed by the processor to implement the method described above.

[0008] According to a third aspect of the embodiments of this application, a refrigerator is provided, including: the electronic device as described above; the refrigerator further includes a refrigerator compartment and a freezer compartment, the refrigerator compartment is provided with a corresponding refrigerator evaporator, and the freezer compartment is provided with a corresponding freezer evaporator; the refrigerator compartment of the refrigerator is provided with an air outlet, the air outlet is connected to an air supply duct, the air supply duct is provided with a refrigerator fan and a refrigerator evaporator, and the air supply duct is also provided with a damper for controlling the opening and closing of the air supply duct.

[0009] The technical solution provided in this application embodiment includes a refrigerator compartment and a freezer compartment. A refrigerator evaporator is correspondingly installed in the refrigerator compartment, and a freezer evaporator is correspondingly installed in the freezer compartment. The refrigerator compartment has an air outlet connected to an air duct. The air duct is equipped with a refrigerator fan and a refrigerator evaporator, and also has a damper for controlling the opening and closing of the air duct. The refrigeration control method includes: when switching to refrigerator cooling mode, starting the refrigerator fan and refrigerator evaporator, and opening the damper to deliver cooling capacity to the refrigerator compartment; when switching to freezer cooling mode, starting the freezer evaporator to deliver cooling capacity to the freezer compartment. The system uses cold air to cool the refrigerator; it then shuts off the refrigeration fan and evaporator to retain the remaining cold air in the evaporator. When the conditions for supplemental cooling in the refrigerator are met, the refrigeration fan is restarted to deliver the remaining cold air from the evaporator to the refrigerator compartment. When the temperature of the evaporator reaches a preset first threshold, the refrigeration fan is shut off, preventing the temperature in the refrigerator compartment from continuing to drop after cooling is complete, thus preventing food from freezing. Furthermore, the refrigeration fan can be restarted to deliver the remaining cold air from the evaporator back to the refrigerator compartment to replenish its heat loss. This process does not require restarting the compressor, thus significantly reducing energy consumption. In addition, it effectively utilizes the remaining cold air in the evaporator, reducing temperature fluctuations in the refrigerator compartment and improving preservation. Attached Figure Description

[0010] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A front view of a refrigerator provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the refrigerator compartment door opening in an embodiment of this application; Figure 3 A schematic diagram of the air supply channel and damper in a refrigerator provided in an embodiment of this application; Figure 4 A flowchart of the refrigeration control method provided in the embodiments of this application; Figure 5 Another flowchart of the refrigeration control method provided in the embodiments of this application.

[0011] Figure label: 10-Box; 20 - Top-opening door; 30- Bottom opening door; 40 - Refrigeration fan; 51-First air outlet; 52-Second air outlet; 53-Third air outlet; 54-Fourth air outlet; 55-Fifth air outlet; 56-Sixth air outlet; 60-Return air vent; 80 - Main air duct; 81 - First air supply duct; 82 - Second air supply duct; 83 - Third air supply duct; 84 - Fourth air supply duct; 85 - Fifth air supply duct; 86 - Sixth air supply duct; 91 - First air door; 92 - Second air door. Detailed Implementation

[0012] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0013] A refrigerator is an essential household appliance. It typically consists of a cabinet and an inner liner. An insulation structure separates the liner from the cabinet to reduce cold air loss and thus lower energy consumption. The storage space of a refrigerator usually includes a refrigerator compartment and a freezer compartment; some refrigerators also have a variable temperature compartment. Shelves or drawers can be installed within each storage compartment to divide it into multiple storage areas.

[0014] In typical refrigerators, the evaporator, refrigerator fan, refrigerator damper, and air vents are located at the back of the refrigerator compartment. When the refrigerator fan is activated and the damper is open, the cooling energy generated by the evaporator is delivered into the refrigerator compartment via airflow through the air vents. Technicians have discovered that even after cooling is stopped, the temperature inside the refrigerator compartment continues to drop significantly, exhibiting a considerable lag. This results in excessively low temperatures, particularly near the air vents, where the temperature can fall more than 3°C below the preset temperature, causing food in that area to freeze easily.

[0015] In addition, the temperature is lower in areas closer to the air vents within the cold storage room, and higher in areas farther away, resulting in uneven temperature distribution and poor preservation. Furthermore, because hot air rises, the upper areas of the cold storage room experience greater temperature fluctuations and more significant temperature changes, which is also detrimental to food preservation.

[0016] Based on the above problems, this embodiment provides a refrigeration control method and a refrigerator, which can improve the problem of delayed temperature drop after the refrigerator stops refrigeration, so that the temperature will not continue to drop after the refrigeration stops, thus preventing food from freezing, and can also improve the problem of large temperature fluctuations in the refrigerator.

[0017] The refrigerator provided in this embodiment can be a double-door refrigerator with a refrigerator compartment and a freezer compartment on the top and bottom, respectively, or it can also be equipped with a variable temperature compartment, which shares a door with the refrigerator compartment.

[0018] The refrigerator can also have three doors: top, middle, and bottom, corresponding to the refrigerator compartment, variable temperature compartment, and freezer compartment, respectively.

[0019] The refrigerator can also be configured with double doors on both sides, a French door, or other designs. It can also have a double door upper section and a drawer lower section. This embodiment does not impose any limitations.

[0020] Example 1.

[0021] like Figure 1 As shown, the refrigerator provided in this embodiment includes: a cabinet 10, with a top-opening door 20 and a bottom-opening door 30 at the front end of the cabinet 10, corresponding to the refrigerator compartment and the freezer compartment respectively. A variable-temperature drawer can be installed in the refrigerator compartment as a variable-temperature compartment. Figure 1 The top-opening door 20 is a single-leaf door.

[0022] The refrigerator compartment is equipped with a refrigerator evaporator, which operates to provide cooling to the refrigerator compartment. The freezer compartment is equipped with a freezer evaporator, which operates to provide cooling to the freezer compartment. The refrigerator and freezer evaporators are controlled and switched via an electric valve. The electric valve can switch the refrigeration system to refrigerator cooling mode, activating the refrigerator evaporator, or switch it to freeze cooling mode, activating the freezer evaporator.

[0023] Figure 2 This shows the top-hinged door 20 in its open state. Figure 2 The top door is a double door. The refrigerator liner is located inside the cabinet 10, and an insulation structure is installed between the refrigerator liner and the cabinet 10 to form a refrigerator space. Figure 2 The inner liner or insulation structure is not shown.

[0024] A refrigeration evaporator and a refrigeration fan 40 are installed on the rear of the refrigerator compartment, along with an air outlet connected to an air supply duct. The air supply duct also houses the refrigeration fan and evaporator. An air damper is provided to control the opening and closing of the air supply duct. A return air vent 60 is located on the lower rear of the refrigerator compartment. The refrigeration evaporator generates cooling, lowering the ambient air temperature to create cold air. When the refrigeration fan 40 starts, it opens the air damper, driving the cold air in the duct from the air outlet into the refrigerated space for cooling.

[0025] Based on the above technical solution, this embodiment provides a refrigeration control method that can be executed by an electronic device installed inside the refrigerator, specifically by a processor.

[0026] like Figure 4 and Figure 5 As shown, the refrigeration control method provided in this embodiment includes: Step 101: When switching to refrigeration mode, start the refrigeration fan and evaporator, and open the damper to deliver cooling capacity to the refrigeration compartment.

[0027] Specifically, when the temperature inside the cold storage room exceeds the preset value, the refrigeration system switches to refrigeration mode. The processor sends a start command to the damper and the refrigeration fan 40, opening the damper and starting the refrigeration fan 40. Refrigerant flows through the refrigeration evaporator, which generates cooling energy, thus cooling the air in the air supply duct. Under the action of the refrigeration fan 40, the cold air in the air supply duct flows in an orderly manner and enters the cold storage room from the air outlet for cooling.

[0028] Step 102: When switching to the refrigeration mode, start the refrigeration evaporator to deliver cold energy to the freezer compartment for cooling; and turn off the refrigeration fan and refrigeration evaporator to retain the remaining cold energy in the refrigeration evaporator.

[0029] In step 101 above, when the refrigerator compartment is in cooling mode, its temperature gradually decreases. Once the target temperature is reached, it switches to freezing mode, stopping the refrigeration process, and the evaporator no longer generates cooling. At this time, the refrigeration fan 40 is turned off, leaving some cold air in the evaporator and air duct, preventing the active supply of cold air into the refrigerator compartment. This avoids the temperature in the refrigerator compartment from continuing to drop after refrigeration stops, thus preventing over-cooling and food freezing.

[0030] In this step, the damper can be open. There is minimal heat exchange between the cold air in the air supply duct and the air inside the refrigerator compartment, which will not significantly affect the temperature of the refrigerator compartment. Alternatively, the damper can be closed to completely stop the heat exchange between the air supply duct and the refrigerator compartment.

[0031] Switch to refrigeration mode and start the evaporator to deliver cooling capacity to the freezer compartment.

[0032] Step 103: When the refrigeration replenishment conditions are met, restart the refrigeration fan to deliver the remaining cooling capacity in the refrigeration evaporator to the refrigeration compartment.

[0033] During refrigerator operation, heat loss occurs, causing the temperature in the refrigerator compartment to rise; alternatively, when users place new items into the refrigerator compartment, these new items act as heat sources, further raising the temperature. Therefore, the actual conditions in the refrigerator compartment can be analyzed and assessed to determine appropriate cooling supplementation measures.

[0034] When the refrigeration replenishment conditions are met, the refrigeration fan 40 is restarted to send the remaining cold air in the refrigeration evaporator back into the refrigeration room to replenish the temperature rise caused by heat loss, so that the temperature of the refrigeration room is maintained at the set temperature.

[0035] Understandably, if the damper is closed in step 102, the damper needs to be reopened after the refrigeration fan is restarted in step 103 in order to send the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment.

[0036] Furthermore, if the damper remains open in step 102, and the refrigeration fan is restarted in step 103, the damper remains open to deliver the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment, thus improving the problem of large temperature fluctuations.

[0037] The conditions for refrigeration replenishment can be determined by a variety of factors, such as the duration or the temperature of the refrigeration room.

[0038] Step 104: When the temperature of the refrigeration evaporator reaches the preset first threshold, turn off the refrigeration fan.

[0039] During steps 102 and 103 above, the refrigeration evaporator does not generate cooling capacity, and its temperature gradually increases. When the temperature of the refrigeration evaporator rises to a preset first threshold T, for example, 4°C or 5°C higher than the required temperature of the refrigeration room, the "hot air" does not meet the cooling capacity requirements of the refrigeration room, so the refrigeration fan 40 is turned off to prevent the "hot air" from being delivered to the refrigeration room.

[0040] Furthermore, after shutting down the refrigeration fan when the temperature of the refrigeration evaporator reaches the preset first threshold, the procedure also includes closing the damper to further prevent "hot air" from being delivered to the refrigeration compartment.

[0041] The technical solution provided in this embodiment includes a refrigerator compartment and a freezer compartment. A refrigerator evaporator is correspondingly installed in the refrigerator compartment, and a freezer evaporator is correspondingly installed in the freezer compartment. The refrigerator compartment has an air outlet connected to an air duct. The air duct is equipped with a refrigerator fan and a refrigerator evaporator, and also has a damper for controlling the opening and closing of the air duct. The refrigeration control method includes: when switching to refrigerator cooling mode, starting the refrigerator fan and refrigerator evaporator, and opening the damper to deliver cooling capacity to the refrigerator compartment; when switching to freezer cooling mode, starting the freezer evaporator to deliver cooling capacity to the freezer compartment. The system refrigerates the food, then shuts off the refrigeration fan and evaporator to retain the remaining cold energy in the evaporator. When the refrigeration replenishment conditions are met, the refrigeration fan is restarted to deliver the remaining cold energy from the evaporator to the refrigerator compartment. Once the evaporator temperature reaches a preset first threshold, the refrigeration fan is shut off. This prevents the temperature in the refrigerator compartment from continuing to drop after refrigeration is complete, thus preventing food from freezing. Furthermore, the refrigeration fan can be restarted to deliver the remaining cold energy from the evaporator back to the refrigerator compartment to replenish its heat loss. This process does not require restarting the compressor, significantly reducing energy consumption. Additionally, the efficient use of the remaining cold energy in the evaporator effectively reduces temperature fluctuations in the refrigerator compartment and improves preservation.

[0042] Example 2.

[0043] Based on the above technical solution, this embodiment provides a specific implementation method. The difference from the above embodiments lies in that the refrigeration replenishment conditions for the refrigeration fan are specifically defined: Step 101: When switching to refrigeration mode, start the refrigeration fan and evaporator, and open the damper to deliver cooling capacity to the refrigeration compartment.

[0044] Specifically, when the temperature inside the cold storage room exceeds the preset value, the refrigeration system switches to refrigeration mode. The processor sends a start command to the damper and the refrigeration fan 40, opening the damper and starting the refrigeration fan 40. Refrigerant flows through the refrigeration evaporator, which generates cooling energy, thus cooling the air in the air supply duct. Under the action of the refrigeration fan 40, the cold air in the air supply duct flows in an orderly manner and enters the cold storage room from the air outlet for cooling.

[0045] Step 102: When switching to the refrigeration mode, start the refrigeration evaporator to deliver cold energy to the freezer compartment for cooling; and turn off the refrigeration fan and refrigeration evaporator to retain the remaining cold energy in the refrigeration evaporator.

[0046] In step 101 above, when the refrigerator compartment is in cooling mode, its temperature gradually decreases. Once the target temperature is reached, it switches to freezing mode, stopping the refrigeration process, and the evaporator no longer generates cooling. At this time, the refrigeration fan 40 is turned off, leaving some cold air in the evaporator and air duct, preventing the active supply of cold air into the refrigerator compartment. This avoids the temperature in the refrigerator compartment from continuing to drop after refrigeration stops, thus preventing over-cooling and food freezing.

[0047] In this step, the damper can be open. There is minimal heat exchange between the cold air in the air supply duct and the air inside the refrigerator compartment, which will not significantly affect the temperature of the refrigerator compartment. Alternatively, the damper can be closed to completely stop the heat exchange between the air supply duct and the refrigerator compartment.

[0048] Switch to refrigeration mode and start the evaporator to deliver cooling capacity to the freezer compartment.

[0049] Step 103: When the refrigeration replenishment conditions are met, restart the refrigeration fan to deliver the remaining cooling capacity in the refrigeration evaporator to the refrigeration compartment.

[0050] During refrigerator operation, heat loss occurs, causing the temperature in the refrigerator compartment to rise; alternatively, when users place new items into the refrigerator compartment, these new items act as heat sources, further raising the temperature. Therefore, the actual conditions in the refrigerator compartment can be analyzed and assessed to determine appropriate cooling supplementation measures.

[0051] When the refrigeration replenishment conditions are met, the refrigeration fan 40 is restarted to send the remaining cold air in the refrigeration evaporator back into the refrigeration room to replenish the temperature rise caused by heat loss, so that the temperature of the refrigeration room is maintained at the set temperature.

[0052] Understandably, if the damper is closed in step 102, the damper needs to be reopened after the refrigeration fan is restarted in step 103 in order to send the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment.

[0053] Furthermore, if the damper remains open in step 102, and the refrigeration fan is restarted in step 103, the damper remains open to deliver the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment, thus improving the problem of large temperature fluctuations.

[0054] In this embodiment, when switching to the refrigeration state in step 102, the refrigeration fan is turned off, specifically including: turning off the refrigeration fan and maintaining it for a preset time. The refrigeration replenishment condition is: the preset time is reached. When the preset time is reached, the refrigeration fan 40 is restarted to deliver the remaining cold energy in the refrigeration evaporator to the refrigeration compartment.

[0055] The preset time is determined as follows: t=K1 / (Th+K2), where t is the preset time, K1 and K2 are constants, and Th is the ambient temperature.

[0056] Step 104: When the temperature of the refrigeration evaporator reaches the preset first threshold, turn off the refrigeration fan.

[0057] During steps 102 and 103 above, the refrigeration evaporator does not generate cooling capacity, and its temperature gradually increases. When the temperature of the refrigeration evaporator rises to a preset first threshold T, for example, 4°C or 5°C higher than the required temperature of the refrigeration room, the "hot air" does not meet the cooling capacity requirements of the refrigeration room, so the refrigeration fan 40 is turned off to prevent the "hot air" from being delivered to the refrigeration room.

[0058] Furthermore, after shutting down the refrigeration fan when the temperature of the refrigeration evaporator reaches the preset first threshold, the procedure also includes closing the damper to further prevent "hot air" from being delivered to the refrigeration compartment.

[0059] Example 3.

[0060] Based on the above technical solution, this embodiment provides a specific implementation method. The difference from the above embodiments lies in that the refrigeration replenishment conditions for the refrigeration fan are specifically defined: Step 101: When switching to refrigeration mode, start the refrigeration fan and evaporator, and open the damper to deliver cooling capacity to the refrigeration compartment.

[0061] Specifically, when the temperature inside the cold storage room exceeds the preset value, the refrigeration system switches to refrigeration mode. The processor sends a start command to the damper and the refrigeration fan 40, opening the damper and starting the refrigeration fan 40. Refrigerant flows through the refrigeration evaporator, which generates cooling energy, thus cooling the air in the air supply duct. Under the action of the refrigeration fan 40, the cold air in the air supply duct flows in an orderly manner and enters the cold storage room from the air outlet for cooling.

[0062] Step 102: When switching to the refrigeration mode, start the refrigeration evaporator to deliver cold energy to the freezer compartment for cooling; and turn off the refrigeration fan and refrigeration evaporator to retain the remaining cold energy in the refrigeration evaporator.

[0063] In step 101 above, when the refrigerator compartment is in cooling mode, its temperature gradually decreases. Once the target temperature is reached, it switches to freezing mode, stopping the refrigeration process, and the evaporator no longer generates cooling. At this time, the refrigeration fan 40 is turned off, leaving some cold air in the evaporator and air duct, preventing the active supply of cold air into the refrigerator compartment. This avoids the temperature in the refrigerator compartment from continuing to drop after refrigeration stops, thus preventing over-cooling and food freezing.

[0064] In this step, the damper can be open. There is minimal heat exchange between the cold air in the air supply duct and the air inside the refrigerator compartment, which will not significantly affect the temperature of the refrigerator compartment. Alternatively, the damper can be closed to completely stop the heat exchange between the air supply duct and the refrigerator compartment.

[0065] Switch to refrigeration mode and start the evaporator to deliver cooling capacity to the freezer compartment.

[0066] Step 103: When the refrigeration replenishment conditions are met, restart the refrigeration fan to deliver the remaining cooling capacity in the refrigeration evaporator to the refrigeration compartment.

[0067] During refrigerator operation, heat loss occurs, causing the temperature in the refrigerator compartment to rise; alternatively, when users place new items into the refrigerator compartment, these new items act as heat sources, further raising the temperature. Therefore, the actual conditions in the refrigerator compartment can be analyzed and assessed to determine appropriate cooling supplementation measures.

[0068] When the refrigeration replenishment conditions are met, the refrigeration fan 40 is restarted to send the remaining cold air in the refrigeration evaporator back into the refrigeration room to replenish the temperature rise caused by heat loss, so that the temperature of the refrigeration room is maintained at the set temperature.

[0069] Understandably, if the damper is closed in step 102, the damper needs to be reopened after the refrigeration fan is restarted in step 103 in order to send the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment.

[0070] Furthermore, if the damper remains open in step 102, and the refrigeration fan is restarted in step 103, the damper remains open to deliver the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment, thus improving the problem of large temperature fluctuations.

[0071] In this embodiment, step 102, when switching to the refrigeration state, further includes: acquiring the first temperature of the cold storage compartment. Then, after turning off the refrigeration fan, it further includes: collecting the real-time temperature of the cold storage compartment at a preset frequency. Next, the difference between the real-time temperature of the cold storage compartment and the first temperature is calculated. When the difference is greater than a preset second threshold, an operation that meets the cold storage replenishment conditions is triggered.

[0072] Specifically, when switching to the freezing / cooling state, the refrigerator compartment stops cooling, and the first temperature Toff of the refrigerator compartment sensor is recorded at this moment. Then, the real-time temperature Ts of the refrigerator compartment sensor is recorded, and ΔT=Ts-Toff is calculated. When ΔT≥T (T>0, T is the second threshold, for example, T=0.5), it is considered that the refrigerator cooling replenishment condition is met, and the refrigerator fan is restarted to replenish the cooling of the refrigerator compartment.

[0073] Step 104: When the temperature of the refrigeration evaporator reaches the preset first threshold, turn off the refrigeration fan.

[0074] During steps 102 and 103 above, the refrigeration evaporator does not generate cooling capacity, and its temperature gradually increases. When the temperature of the refrigeration evaporator rises to a preset first threshold T, for example, 4°C or 5°C higher than the required temperature of the refrigeration room, the "hot air" does not meet the cooling capacity requirements of the refrigeration room, so the refrigeration fan 40 is turned off to prevent the "hot air" from being delivered to the refrigeration room.

[0075] Furthermore, after shutting down the refrigeration fan when the temperature of the refrigeration evaporator reaches the preset first threshold, the procedure also includes closing the damper to further prevent "hot air" from being delivered to the refrigeration compartment.

[0076] Example 4.

[0077] Based on the above technical solutions, this embodiment provides a specific implementation method. The difference from the above embodiments lies in the specific limitations of the implementation method for refrigeration replenishment: Step 101: When switching to refrigeration mode, start the refrigeration fan and evaporator, and open the damper to deliver cooling capacity to the refrigeration compartment.

[0078] Specifically, when the temperature inside the cold storage room exceeds the preset value, the refrigeration system switches to refrigeration mode. The processor sends a start command to the damper and the refrigeration fan 40, opening the damper and starting the refrigeration fan 40. Refrigerant flows through the refrigeration evaporator, which generates cooling energy, thus cooling the air in the air supply duct. Under the action of the refrigeration fan 40, the cold air in the air supply duct flows in an orderly manner and enters the cold storage room from the air outlet for cooling.

[0079] Step 102: When switching to the refrigeration mode, start the refrigeration evaporator to deliver cold energy to the freezer compartment for cooling; and turn off the refrigeration fan and refrigeration evaporator to retain the remaining cold energy in the refrigeration evaporator.

[0080] In step 101 above, when the refrigerator compartment is in cooling mode, its temperature gradually decreases. Once the target temperature is reached, it switches to freezing mode, stopping the refrigeration process, and the evaporator no longer generates cooling. At this time, the refrigeration fan 40 is turned off, leaving some cold air in the evaporator and air duct, preventing the active supply of cold air into the refrigerator compartment. This avoids the temperature in the refrigerator compartment from continuing to drop after refrigeration stops, thus preventing over-cooling and food freezing.

[0081] In this step, the damper can be open. There is minimal heat exchange between the cold air in the air supply duct and the air inside the refrigerator compartment, which will not significantly affect the temperature of the refrigerator compartment. Alternatively, the damper can be closed to completely stop the heat exchange between the air supply duct and the refrigerator compartment.

[0082] Switch to refrigeration mode and start the evaporator to deliver cooling capacity to the freezer compartment.

[0083] Step 103: When the refrigeration replenishment conditions are met, restart the refrigeration fan to deliver the remaining cooling capacity in the refrigeration evaporator to the refrigeration compartment.

[0084] During refrigerator operation, heat loss occurs, causing the temperature in the refrigerator compartment to rise; alternatively, when users place new items into the refrigerator compartment, these new items act as heat sources, further raising the temperature. Therefore, the actual conditions in the refrigerator compartment can be analyzed and assessed to determine appropriate cooling supplementation measures.

[0085] When the refrigeration replenishment conditions are met, the refrigeration fan 40 is restarted to send the remaining cold air in the refrigeration evaporator back into the refrigeration room to replenish the temperature rise caused by heat loss, so that the temperature of the refrigeration room is maintained at the set temperature.

[0086] Understandably, if the damper is closed in step 102, the damper needs to be reopened after the refrigeration fan is restarted in step 103 in order to send the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment.

[0087] Furthermore, if the damper remains open in step 102, and the refrigeration fan is restarted in step 103, the damper remains open to deliver the remaining cooling capacity of the refrigeration evaporator to the refrigeration compartment, thus improving the problem of large temperature fluctuations.

[0088] The conditions for refrigeration replenishment can be determined by a variety of factors, such as the duration or the temperature of the refrigeration room.

[0089] This step, after restarting the refrigeration fan, also includes: acquiring and judging the real-time temperature inside the refrigeration room. If the real-time temperature inside the refrigeration room is higher than a preset third threshold, it means that the temperature inside the refrigeration room is rising too quickly. In this case, the speed of the refrigeration fan is increased to the first speed. The first speed is faster, quickly delivering the remaining cooling capacity of the evaporator to the refrigeration room for cooling, thereby reducing temperature fluctuations in the refrigeration room. If the real-time temperature inside the refrigeration room is less than or equal to the third threshold, the refrigeration fan operates at a second speed, which is lower than the first speed.

[0090] Step 104: When the temperature of the refrigeration evaporator reaches the preset first threshold, turn off the refrigeration fan.

[0091] During steps 102 and 103 above, the refrigeration evaporator does not generate cooling capacity, and its temperature gradually increases. When the temperature of the refrigeration evaporator rises to a preset first threshold T, for example, 4°C or 5°C higher than the required temperature of the refrigeration room, the "hot air" does not meet the cooling capacity requirements of the refrigeration room, so the refrigeration fan 40 is turned off to prevent the "hot air" from being delivered to the refrigeration room.

[0092] Furthermore, after shutting down the refrigeration fan when the temperature of the refrigeration evaporator reaches the preset first threshold, the procedure also includes closing the damper to further prevent "hot air" from being delivered to the refrigeration compartment.

[0093] Based on the above embodiments, the cold storage room may be equipped with only one air outlet or multiple air outlets at intervals. Each air outlet is connected to the main air duct through an air supply channel. The main air duct is equipped with a cold storage fan and a cold storage evaporator. Each air supply channel is equipped with an air damper.

[0094] Before restarting the refrigeration fan after meeting the refrigeration replenishment conditions, the process includes: acquiring the real-time temperature of the area where each air outlet in the refrigeration room is located using temperature detection devices; determining the replenishment priority based on the acquired real-time temperature; and opening the corresponding air dampers according to the replenishment priority to deliver the remaining cold energy in the refrigeration evaporator to the corresponding area in the refrigeration room with higher priority.

[0095] There are several ways to prioritize cooling. One way is that, since hot air rises, the temperature in the upper part of the cold storage room rises faster and fluctuates more. Therefore, the temperature in the upper part can be automatically set as the highest priority, and the priority of the other parts can be sorted from high to low according to the real-time temperature.

[0096] Another approach is to sort items in descending order of real-time temperature based on the real-time temperature of each area of ​​the cold storage room if the temperature of that area rises rapidly and fluctuates significantly.

[0097] The dampers are opened according to priority. Assuming there are three priority levels (high, medium, and low), the high-priority dampers are opened first, followed by the medium-priority dampers after a certain period, while the low-priority dampers remain closed. Alternatively, based on real-time temperature, if the temperature in the area corresponding to the low-priority dampers is higher, the high, medium, and low-priority dampers can be opened sequentially according to time.

[0098] One specific implementation is as follows: air outlets are respectively provided in the upper, middle and lower layers of the cold storage room; real-time temperature is obtained from the temperature detection devices in the area where each air outlet is located in the cold storage room, specifically including: obtaining the real-time temperature from the temperature detection devices in the area where each air outlet is located in the middle and lower layers of the cold storage room.

[0099] The corresponding air dampers are opened according to the cooling priority. Specifically, the air dampers on the upper layer of the cold storage compartment are kept open, and the corresponding air dampers on the middle and lower layers are opened according to the cooling priority. This is to transfer the remaining cold energy in the cold storage evaporator to the upper layer, and then to the middle or lower layer accordingly. Priority is given to sending the remaining cold energy in the cold storage evaporator to the upper layer of the cold storage space to reduce temperature fluctuations in the upper area.

[0100] One specific implementation method is as follows: Figure 2 and Figure 3 As shown, air outlets are located on the upper, middle, and lower left sides of the cold storage compartment, namely: first air outlet 51, second air outlet 52, and third air outlet 53. Air outlets are located on the upper, middle, and lower right sides, namely: fourth air outlet 54, fifth air outlet 55, and sixth air outlet 56. There are a total of six air outlets, each connected to a corresponding air supply duct. These six air supply ducts are designated as first air supply duct 81, second air supply duct 82, third air supply duct 83, fourth air supply duct 84, fifth air supply duct 85, and sixth air supply duct 86, converging and connecting to the main air duct 80. When the refrigeration fan 40 is turned on, cold air is directed vertically from the main air duct to each air supply duct.

[0101] The first damper 91 is located at the junction of the second air supply channel 82 and the third air supply channel 83 corresponding to the second air supply outlet 52 and the third air supply outlet 53 with the main air duct 80. The first damper 91 is used to control the opening and closing of the second air supply channel 82 and the third air supply channel 83.

[0102] The second damper 92 is located at the junction of the fifth air supply channel 85 and the sixth air supply channel 86 corresponding to the fifth air supply outlet 55 and the sixth air supply outlet 56 with the main air duct 80. The second damper 92 is used to control the opening and closing of the fifth air supply channel 85 and the sixth air supply channel 86.

[0103] In step 101 above, when switching to the refrigeration state, the refrigeration fan 40 and the refrigeration evaporator are started, and the first damper 91 and the second damper 92 are opened to deliver cold energy to all areas of the refrigeration room for refrigeration.

[0104] When switching to the refrigeration state in step 102 above, the refrigeration evaporator is started to deliver cold energy to the freezer compartment for refrigeration; and the refrigeration fan 40 and the refrigeration evaporator are turned off to retain the remaining cold energy in the refrigeration evaporator.

[0105] In step 103 above, when the refrigeration replenishment conditions are met, the refrigeration fan 40 is restarted to deliver the remaining cooling capacity in the refrigeration evaporator to the refrigeration compartment. In this step, the first damper 91 and the second damper 92 can be closed as described above, delivering cooling capacity only to the upper area of ​​the refrigeration compartment; alternatively, the first damper 91 and / or the second damper 92 can be opened according to priority to deliver cooling capacity to the target area.

[0106] In step 104, when the temperature of the refrigeration evaporator reaches the preset first threshold, the refrigeration fan 40 is turned off, and the first damper 91 and the second damper 92 can also be closed.

[0107] This embodiment also provides an electronic device, including: a memory, a processor, and a computer program; wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method provided in any of the above embodiments.

[0108] This embodiment also provides a refrigerator, including: the above-mentioned electronic equipment; the refrigerator further includes a refrigerator compartment and a freezer compartment, the refrigerator compartment is provided with a refrigerator evaporator, and the freezer compartment is provided with a freezer evaporator; the refrigerator compartment of the refrigerator is provided with an air outlet, the air outlet is connected to an air supply duct, the air supply duct is provided with a refrigerator fan and a refrigerator evaporator, and the air supply duct is also provided with a damper for controlling the opening and closing of the air supply duct.

[0109] The electronic device and refrigerator provided in this embodiment have the same technical effects as the methods described above.

[0110] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of this application can be implemented in various computer languages, such as C, VHDL, Verilog, the object-oriented programming language Java, and the interpreted scripting language JavaScript.

[0111] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0112] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0113] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0114] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0115] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0116] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0117] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0118] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A refrigeration control method, characterized in that, It can be applied to refrigerators; the refrigerator includes a refrigerator compartment and a freezer compartment. The refrigerator compartment is equipped with a refrigerator evaporator and the freezer compartment is equipped with a freezer evaporator; the refrigerator compartment is equipped with an air outlet, which is connected to an air supply duct. The air supply duct is equipped with a refrigerator fan and a refrigerator evaporator. The air supply duct is also equipped with a damper to control the opening and closing of the air supply duct. Refrigeration control methods include: When switching to refrigeration mode, start the refrigeration fan and evaporator, and open the damper to deliver cooling capacity to the refrigeration compartment; When switching to refrigeration mode, the refrigeration evaporator is started to deliver cold energy to the freezer compartment for cooling; and the refrigeration fan and refrigeration evaporator are turned off to retain the remaining cold energy in the refrigeration evaporator. When the conditions for refrigeration replenishment are met, restart the refrigeration fan to transfer the remaining cold energy in the refrigeration evaporator to the refrigeration compartment. When the temperature of the refrigeration evaporator reaches the preset first threshold, the refrigeration fan is turned off.

2. The refrigeration control method according to claim 1, characterized in that, When switching to refrigeration mode, turn off the refrigeration fan, specifically by turning off the refrigeration fan and maintaining it for a preset time. The refrigeration replenishment conditions are: arrival at the preset time; When the refrigeration replenishment conditions are met, the refrigeration fan is restarted to deliver the remaining cold energy in the refrigeration evaporator to the refrigeration compartment. Specifically, when the preset time is reached, the refrigeration fan is restarted to deliver the remaining cold energy in the refrigeration evaporator to the refrigeration compartment.

3. The refrigeration control method according to claim 2, characterized in that, The preset time is determined as follows: t = K1 / (Th + K2), where t is the preset time, K1 and K2 are constants, and Th is the ambient temperature.

4. The refrigeration control method according to claim 1, characterized in that, When switching to refrigeration mode, it also includes: Obtain the initial temperature of the cold storage compartment; After turning off the refrigeration fan, the following is also included: The real-time temperature of the cold storage compartment is collected at a preset frequency; Calculate the difference between the real-time temperature of the cold storage compartment and the first temperature. When the difference is greater than the preset second threshold, trigger the operation that meets the cold storage replenishment conditions.

5. The refrigeration control method according to claim 4, characterized in that, The refrigeration control method according to claim 1 is characterized in that, after turning off the refrigeration fan when the temperature of the refrigeration evaporator reaches a preset first threshold, it further includes: closing the damper.

6. The refrigeration control method according to claim 4, characterized in that, After restarting the refrigeration fan when the refrigeration replenishment conditions are met, the following steps are also included: Obtain the real-time temperature inside the cold storage room; If the real-time temperature inside the cold storage room is higher than the preset third threshold, the speed of the cold storage fan is increased to the first speed; otherwise, the cold storage fan operates at the second speed; the first speed is greater than the second speed.

7. The refrigeration control method according to claim 1, characterized in that, The cold storage room is equipped with multiple air outlets, each of which is connected to the main air duct via an air supply channel. The main air duct is equipped with a cold storage fan and a cold storage evaporator. Each air supply channel is equipped with an air damper. Before restarting the refrigeration fan after meeting the refrigeration replenishment conditions, the following steps are also included: The system acquires real-time temperatures from temperature sensors located in the areas where air vents are located within the cold storage room. The priority of cooling compensation is determined based on the collected real-time temperature. Open the corresponding damper according to the cooling priority to transfer the remaining cold energy in the refrigeration evaporator to the corresponding area in the higher priority refrigeration room.

8. The refrigeration control method according to claim 7, characterized in that, Air vents are installed on the upper, middle and lower layers of the cold storage compartment; The real-time temperature of each air outlet in the cold storage room is obtained from the temperature detection devices. Specifically, this includes obtaining the real-time temperature of each air outlet in the middle and lower layers of the cold storage room from the temperature detection devices. The corresponding air dampers are opened according to the cooling priority. Specifically, the air dampers on the upper layer of the refrigerator compartment are kept open, and the corresponding air dampers on the middle and lower layers are opened according to the cooling priority, so as to transport the remaining cold energy in the refrigerator evaporator to the upper layer and then to the middle or lower layer.

9. An electronic device, characterized in that, include: Memory; processor; as well as Computer programs; The computer program is stored in the memory and configured to be executed by the processor to implement the method as described in any one of claims 1-7.

10. A refrigerator, characterized in that, include: The electronic device of claim 9; the refrigerator further includes a refrigerator compartment and a freezer compartment, the refrigerator compartment is provided with a corresponding refrigerator evaporator, and the freezer compartment is provided with a corresponding freezer evaporator; the refrigerator compartment of the refrigerator is provided with an air outlet, the air outlet is connected to an air supply duct, the air supply duct is provided with a refrigerator fan and a refrigerator evaporator, and the air supply duct is also provided with a damper for controlling the opening and closing of the air supply duct.

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