Freezing control method of refrigerator, refrigerator and readable storage medium
By setting up main and end air outlets in the refrigerator and controlling the airflow direction and area according to the temperature of the food, the problem of cell damage and moisture loss in meat within the maximum ice crystal formation zone is solved, achieving optimized frozen storage results.
Patent Information
- Application Number
- CN202411038093.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2026-02-03
AI Technical Summary
When meat is frozen in a temperature range of -1°C to -5°C, ice crystals penetrate cell membranes, causing damage to cell structure, affecting taste and nutrient loss. Existing technologies struggle to balance temperature and humidity control to maintain the freshness of ingredients.
By setting a main air outlet and end air outlets in the refrigerator, the opening and airflow direction of the air outlets can be controlled according to the different positions of the food temperature inside and outside the maximum ice crystal formation zone, thereby optimizing the freezing environment, promoting the formation of small ice crystals and reducing moisture loss.
It achieves rapid transition within the maximum ice crystal formation zone and avoids moisture loss on the outside, optimizing the frozen storage environment and maintaining the tenderness, juiciness, and freshness of the ingredients.
Smart Images
Figure CN121452776A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of refrigeration, in particular to a refrigeration control method of a refrigerator, a refrigerator and a readable storage medium. BACKGROUND
[0002] In daily life, usually, after putting food materials such as meat into the freezer compartment of a refrigerator, the temperature is controlled below 0℃, so as to realize the refrigeration of food materials such as meat, so as to prolong the shelf life of food materials such as meat.
[0003] However, food materials such as meat are usually in the maximum ice crystal generation zone at a temperature range of-1℃ to-5℃. In this temperature range, the water in the meat begins to freeze to form ice crystals, and these ice crystals will penetrate the cell membrane and cell wall during the formation process, causing physical damage and destruction of the cell structure. If food materials such as meat are stored in this temperature range for too long, it is easy to cause problems such as whitening of meat color, harsh taste, and serious loss of nutrients. SUMMARY
[0004] The present application provides a refrigeration control method of a refrigerator, a refrigerator and a readable storage medium, which can balance the humidity control and temperature control of food materials, optimize the refrigeration storage environment of food materials, and maintain the freshness of food materials.
[0005] Specifically, the present application is realized by the following technical solutions:
[0006] In one aspect, the present application provides a refrigeration control method of a refrigerator, the refrigerator comprising a freezer compartment, a main air outlet and an end air outlet; the main air outlet is arranged in the middle region of the top wall of the freezer compartment; the end air outlet is arranged in at least one side edge region of the top wall of the freezer compartment; the refrigeration control method comprises:
[0007] obtaining the temperature of food materials placed in the freezer compartment; determining whether the temperature of the food materials is located in the temperature range of the maximum ice crystal generation zone;
[0008] If yes, controlling the main air outlet to be opened and controlling the main air outlet to blow air to the lower part of the freezer compartment; if no, controlling the end air outlet to be opened and controlling the end air outlet to blow air to the lower part of the freezer compartment, and controlling the main air outlet to blow air to the side part of the freezer compartment or to be closed.
[0009] Optionally, the temperature range of the maximum ice crystal generation zone comprises a maximum temperature; after determining that the temperature of the food materials is not located in the temperature range of the maximum ice crystal generation zone, the method further comprises:
[0010] determining whether the food temperature is higher than the maximum ice crystal generation zone uppermost temperature; if yes, controlling the end portion air outlet to open and controlling the end portion air outlet to blow air to the lower portion of the freezing chamber with an air outlet area greater than 50%, and controlling the main air outlet to blow air to the side portion of the freezing chamber with an air outlet area greater than 50%.
[0011] Optionally, the maximum ice crystal generation zone temperature range includes a minimum temperature; after determining that the food temperature is not within the maximum ice crystal generation zone temperature range, further comprising:
[0012] determining whether the food temperature is lower than the maximum ice crystal generation zone minimum temperature; if yes, controlling the end portion air outlet to open and controlling the end portion air outlet to blow air to the lower portion of the freezing chamber with an air outlet area greater than 50%, and controlling the main air outlet to close.
[0013] Optionally, the refrigerator further comprises an auxiliary air outlet arranged on the side wall of the freezing chamber; after determining that the food temperature is within the maximum ice crystal generation zone temperature range, further comprising: controlling the auxiliary air outlet to open.
[0014] Optionally, after determining that the food temperature is lower than the minimum temperature, further comprising
[0015] determining whether the food temperature reaches a preset freezing temperature; the preset freezing temperature is less than the maximum ice crystal generation zone minimum temperature and greater than the optimal freezing temperature of the food;
[0016] if yes, stopping refrigeration, and detecting the gas concentration emitted by the food in the freezing chamber, and determining whether the concentration detection result is greater than a preset concentration threshold;
[0017] if yes, controlling the air outlet area of the end portion air outlet to be less than 50%, the air outlet area of the main air outlet to be greater than 50%, and controlling the target rotating speed of the freezing fan to continue blowing air into the freezing chamber at the rated rotating speed.
[0018] Optionally, after determining that the food temperature reaches the preset freezing temperature and stopping refrigeration, further comprising:
[0019] detecting the humidity of the food in the freezing chamber, and determining whether the humidity detection result is less than a preset humidity threshold;
[0020] if yes, controlling the air outlet area of the end portion air outlet to be greater than 50%, the air outlet area of the main air outlet to be less than 50%, and controlling the target rotating speed of the freezing fan to continue blowing air into the freezing chamber at a rotating speed less than the rated rotating speed and greater than half of the rated rotating speed.
[0021] Optionally, the refrigerator further comprises an auxiliary air outlet arranged on the side wall of the freezing chamber; after detecting that the gas concentration is greater than the preset concentration threshold, the refrigerator further controls the air outlet area of the auxiliary air outlet to be greater than 50% and blows air into the freezing chamber along the horizontal direction.
[0022] Optionally, before acquiring the temperature of the food material placed in the freezing chamber, the method further comprises:
[0023] detecting that the door of the freezing chamber is opened and the opening duration is greater than a preset opening duration threshold;
[0024] acquiring the weight of the food material in the freezing chamber and determining whether the weight of the food material is increased; if yes, acquiring the temperature of the food material placed in the freezing chamber.
[0025] Another aspect of the present application further provides a refrigerator, comprising a memory and a processor;
[0026] the memory is configured to store a computer program;
[0027] the processor is configured to invoke the computer program to implement the freezing control method according to any one of the above.
[0028] Still another aspect of the present application further provides a readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the freezing control method according to any one of the above.
[0029] The technical solution provided by the present application can achieve the following beneficial effects:
[0030] The present application provides a freezing control method of a refrigerator, a refrigerator and a readable storage medium. When it is determined that the temperature of the food material is within the temperature range of the maximum ice crystal generation zone, the main air outlet is controlled to be opened and blow air downward, so that the meat food material is directly and vertically blown, the meat food material quickly passes through the maximum ice crystal generation zone, the water molecules in the meat food material are more quickly formed into smaller ice crystal zone, and the ice crystal zone is more fine and evenly distributed in the meat. When it is determined that the temperature of the food material is not within the temperature range of the maximum ice crystal generation zone, the end air outlet is controlled to blow air downward, and the main air outlet is controlled to blow air to the side of the freezing chamber or be closed, so that the meat food material is not directly blown and too much water is not taken away, the water loss rate is reduced, and the freshness of the food material is ensured. The present application can balance the humidity control and temperature control of the food material, optimize the freezing storage environment of the food material, and maintain the freshness of the food material. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 is a structural schematic diagram of a refrigerator according to an example embodiment of the present application.
[0032] Figure 2This is a schematic diagram of the control logic of a refrigerator's freezing and humidity control method, as illustrated in an exemplary embodiment of this application.
[0033] Figure 3 This is a schematic diagram of another control logic for a refrigerator's refrigeration humidity control method, as illustrated in an exemplary embodiment of this application.
[0034] Figure 4 This is a schematic diagram of another control logic for a refrigerator's refrigeration humidity control method, as illustrated in an exemplary embodiment of this application.
[0035] Figure descriptions: 1. Freezer compartment; 11. Top wall; 12. Rear wall; 13. Door; 14. Main air outlet; 15. End air outlet; 16. Auxiliary air outlet; 17. Return air outlet; 2. Refrigeration system; 21. Air duct; 22. Evaporator; 23. Refrigeration fan; 24. Compressor; 4. Gas sensor; 6. Torque sensor. Detailed Implementation
[0036] The technical solution of this application will now be described in detail with reference to the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0037] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0038] Please see Figure 1 The refrigerator provided in this application includes a freezer compartment 1, a main air outlet 14, and end air outlets 15. The main air outlet 14 is located in the middle region of the top wall 11 of the freezer compartment 1. The end air outlets 15 are located on at least one edge of the top wall 11 of the freezer compartment 1. Because the end air outlets 15 are located on the edge of the top wall 11, when air is blown into the freezer compartment 1, it can avoid blowing directly onto the food inside the freezer compartment 1, thus maintaining a higher humidity for the food. When the end air outlets 15 are used in conjunction with the main air outlet 14, the freezing temperature inside the freezer compartment 1 can also be adjusted. Specific methods for controlling the freezer temperature are detailed below.
[0039] It should be noted that the "middle area" and "edge area" of the top wall 11 of the freezer compartment 1 can be divided according to the proportion of the total area occupied by the top wall 11. For example, the area extending inward from the edges of the top wall 11 of the freezer compartment 1 is the edge area, and the area remaining after deducting the edge area from the total area of the top wall 11 is the center area. The area of the edge area does not exceed 30%, and the area of the center area does not exceed 70%. Exemplarily, the end air outlet 15 can be set in at least one of the front edge area, the two side edge areas, and the rear edge area of the top wall 11. The following describes the refrigerator freezing control method provided in this application with the end air outlet 15 set in the front edge area of the top wall 11 as an example.
[0040] In one embodiment, the refrigerator further includes an auxiliary air outlet 16 disposed on the side wall of the freezer compartment 1. Exemplarily, the auxiliary air outlet 16 can be disposed on at least one side wall of the freezer compartment 1, or on the rear wall 12 of the freezer compartment 1. In one embodiment, the refrigerator further includes a refrigeration system 2, which includes an air duct 21, an evaporator 22, a condenser, a refrigeration fan 23, and a compressor 24. The air in the freezer compartment 1 is directly supplied by the refrigeration system 2, and the temperature of the freezer compartment 1 generally needs to be adjusted to below -5°C, for example, -16 to -24°C. Specifically, the compressor 24 in the refrigeration system 2 compresses the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure gas. The high-temperature, high-pressure gas is condensed into a high-pressure liquid by the condenser, and then enters the evaporator 22 through the expansion valve to form a low-temperature, low-pressure liquid. External ambient air is heat-exchanged through the evaporator 22 to form cold air, which is then transported by the fan to the metal air duct 21 and blown into the freezer compartment 1 through various air outlets for cooling. Air circulation is then achieved through the return air vent 17, allowing the air to re-enter the refrigeration system 2 for cyclic cooling.
[0041] The freezing control method of the refrigerator of this application will be described in detail below.
[0042] Please see Figure 2 This application provides a method for controlling the freezing of a refrigerator, comprising:
[0043] S1. Obtain the temperature of the food placed in the freezer compartment;
[0044] S2. Determine whether the temperature of the food ingredient is within the temperature range of the maximum ice crystal formation zone;
[0045] S3. If located, control the main air outlet to open and control the main air outlet to discharge air to the lower part of the freezer compartment;
[0046] S4. If not located, control the end air outlet to open and control the end air outlet to discharge air to the lower part of the freezer compartment, and control the main air outlet to discharge air to the side of the freezer compartment or close it.
[0047] Meat typically falls within the maximum ice crystal formation zone at temperatures between -1°C and -5°C. Within this temperature range, the moisture in the meat begins to freeze and form ice crystals. These ice crystals penetrate cell membranes and cell walls during their formation, causing physical damage and disruption to the cell structure. If meat is stored within this temperature range for too long, it will affect its taste and edibility.
[0048] The above control method, when determining that the food temperature is within the maximum ice crystal formation zone, controls the main air outlet to open and blow downwards, directly blowing air onto the meat. This allows the meat to quickly pass through the maximum ice crystal formation zone, promoting the formation of smaller ice crystals from the water molecules within the meat, resulting in a finer and more even distribution. However, if the main air outlet is used to blow air directly onto the meat throughout the entire freezing process, it will remove a large amount of moisture from the surface of the meat, making it dry and tough. Therefore, when the food temperature is determined to be outside the maximum ice crystal formation zone, the above control method controls the end air outlets to blow downwards and controls the main air outlet to blow air towards the side of the freezer compartment or close it. This avoids directly blowing air onto the meat and removing too much moisture, reducing water loss and ensuring the food remains tender and juicy. This method balances freezing temperature and humidity control, optimizing the frozen storage environment and maintaining the freshness of the food.
[0049] It should be noted that by controlling the angle between the main air outlet's air outlet direction and the horizontal direction to be less than 45°, the main air outlet can be directed to the side of the freezer compartment.
[0050] In one embodiment, during step S3, the end air outlet can be simultaneously controlled to blow air downwards to further accelerate the passage of meat through the maximum ice crystal formation zone. In another embodiment, after determining that the food temperature is within the temperature range of the maximum ice crystal formation zone, the method further includes controlling the auxiliary air outlet to open. This further accelerates the passage of meat through the maximum ice crystal formation zone.
[0051] Please see Figure 3 In one embodiment, the temperature range of the maximum ice crystal formation zone includes the highest temperature; after determining that the food temperature is not within the temperature range of the maximum ice crystal formation zone, the method further includes:
[0052] S41. Determine whether the temperature of the food ingredient is higher than the maximum temperature; if it is higher, control the end air outlet to open and control the end air outlet to discharge air to the lower part of the freezer compartment with an air discharge area greater than 50%, and also control the main air outlet to discharge air to the side of the freezer compartment with an air discharge area greater than 50%.
[0053] When the temperature of the food is determined to be higher than the highest temperature within the maximum ice crystal formation zone, it indicates that the food temperature is high and has not yet entered the freezing state, requiring rapid cooling. Therefore, controlling the air outlet area of the end air outlet and the main air outlet to be greater than 50% can achieve the purpose of rapid cooling. In one embodiment, the air outlet area of the end air outlet and the main air outlet can be controlled to 100%.
[0054] It should be noted that adjustable dampers can be installed at the end air outlets and the main air outlet. The opening and closing degree of the adjustable dampers at each air outlet can be controlled independently by a motor to control the size of the air outlet area. When the adjustable damper is fully open, the air outlet area is at most 100%; when the adjustable damper is fully closed, the air outlet area is 0.
[0055] The location information of the food can be collected by an image acquisition device set in the freezer compartment. The controller then controls the temperature sensors, such as temperature probes, located at different positions in the freezer compartment to move to the corresponding food to measure its temperature.
[0056] Please continue reading. Figure 3 In one embodiment, the temperature range of the maximum ice crystal formation zone includes the lowest temperature; after determining that the food temperature is not within the temperature range of the maximum ice crystal formation zone, the method further includes:
[0057] S42. Determine whether the temperature of the food ingredient is lower than the minimum temperature; if it is lower, control the end air outlet to open and control the end air outlet to discharge air to the lower part of the freezer compartment with an air discharge area of more than 50%, and also control the main air outlet to close.
[0058] When the temperature of the food is determined to be below the lowest temperature within the maximum ice crystal formation zone, it indicates that the food is already in a semi-frozen state. Therefore, by controlling the end air outlets to blow air downwards with more than 50% of the air outlet area and closing the main air outlet, a slow freezing effect can be achieved. This allows the remaining moisture near the point where the maximum ice crystals have formed to crystallize more evenly and slowly, improving the freezing quality of meat products.
[0059] In one embodiment, step S42 further controls the target rotational speed of the refrigeration fan to continue blowing air into the freezer compartment at a speed less than the rated speed but greater than half of the rated speed. For example, operating at 60% of the rated speed can maintain a higher humidity in the freezer compartment.
[0060] Please see Figure 4 In one embodiment, after determining that the temperature of the food ingredient is lower than the minimum temperature, the method further includes:
[0061] S43. Determine whether the temperature of the food reaches the preset freezing temperature; the preset freezing temperature is less than the lowest temperature of the maximum ice crystal formation zone and greater than the optimal freezing temperature of the food.
[0062] If so, proceed to step S5 to stop refrigeration and detect the concentration of gas emitted by the food in the freezer compartment; then proceed to step S51 to determine whether the concentration detection result is greater than the preset concentration threshold.
[0063] If the value is greater than 50%, then step S52 is used to control the air outlet area of the end air outlet to be less than 50% and the air outlet area of the main air outlet to be greater than 50%; and the target speed of the refrigeration fan is controlled to continue blowing air into the refrigeration chamber at the rated speed.
[0064] When meat is not stored properly, it may release at least one of the following gases: hydrogen sulfide, ammonia, thiols, and fatty acid gases. When an increase in the type or concentration of these gases is detected in the freezer compartment, it indicates that the meat is slightly spoiled. In this case, the aforementioned control process can achieve targeted temperature control during freezing and auxiliary humidity control to further optimize the freezing environment.
[0065] It should be noted that a matrix arrangement of gas sensors 4 can be installed in the freezer compartment, enabling highly selective and simultaneous measurement of multiple types of gases. This allows for accurate calculation of the gases released by meat products, thus constructing a comprehensive gas monitoring network. Detecting the types or amounts of gases emitted by food using gas sensors 4 is a known existing technology and will not be elaborated upon further here.
[0066] Please continue reading. Figure 4 In one embodiment, after determining that the food temperature has reached a preset freezing temperature and stopping refrigeration, the method further includes...
[0067] S6. Detect the humidity of the food in the freezer compartment;
[0068] S61. Determine whether the humidity detection result is less than the preset humidity threshold.
[0069] S62. If it is less than 50%, then control the air outlet area of the end air outlet to be greater than 50% and the air outlet area of the main air outlet to be less than 50%; and control the target speed of the refrigeration fan to continue blowing air into the refrigeration chamber at a speed less than the rated speed but greater than half of the rated speed.
[0070] A humidity sensor can be installed in the freezer compartment to measure the moisture content of food by detecting the amount of water molecules in the environment. When the humidity in the freezer compartment is low, it indicates that the food is also low in moisture. Through the above control process, targeted humidity control and auxiliary temperature control can be implemented to further optimize the freezing environment.
[0071] For example, the target speed of the refrigeration fan can be controlled to operate at 80% or 90% of the rated speed.
[0072] It should be noted that if the concentration detection result is less than the preset concentration threshold in step S5, and the humidity detection result is greater than the preset humidity threshold in step S6, then normal airflow is controlled. Normal airflow means that the end air outlets are open, and the main air outlets either blow air to the side of the freezer compartment or are closed, in order to maintain optimal humidity and temperature control.
[0073] Furthermore, the judgment processes in steps S5 and S6 can be performed in any order. For example, in one embodiment, after performing step S43 to determine whether the food temperature has reached the preset freezing temperature, step S5 can be performed first to detect the gas concentration emitted by the food in the freezer compartment, and then step S6 can be performed to detect the food humidity in the freezer compartment. In other embodiments, after performing step S43 to determine whether the food temperature has reached the preset freezing temperature, step S6 can be performed first to detect the food humidity in the freezer compartment, and then step S5 can be performed to detect the gas concentration emitted by the food in the freezer compartment.
[0074] In one embodiment, the refrigerator further includes an auxiliary air outlet disposed on the side wall of the freezer compartment; after detecting that the gas concentration is greater than a preset concentration threshold, the air outlet area of the auxiliary air outlet is controlled to be greater than 50%, and the air is blown into the freezer compartment in a horizontal direction. This further enables rapid cooling.
[0075] In one embodiment, before obtaining the temperature of the food placed in the freezer compartment, the method further includes:
[0076] The door of the freezer compartment was detected to be open, and the opening duration exceeded a preset door opening duration threshold.
[0077] The weight of the food in the freezer compartment is obtained, and it is determined whether the weight of the food has increased; if so, the temperature of the food placed in the freezer compartment is detected.
[0078] For example, the door opening time threshold is 30 seconds. When it is detected that the freezer door 13 is opened and the opening time is greater than 30 seconds, the weight of the food is obtained. At this time, the weight of the food may have increased, indicating that the user has put in new food for freezing. At this time, the temperature of the food in the freezer is detected, so as to return to the above S2 step for another judgment, and control different cooling modes according to the judgment result.
[0079] It should be noted that the opening process of the door 13 can be measured by installing a torque sensor 6 on the door 13. The torque sensor senses and detects the torsional torque generated when the door 13 rotates, converting the physical change in torque into a precise electrical signal. The torque sensor 6 can detect the opening time and angle of the door 13. In addition, a weight sensor detects the weight of the food before and after the door is opened, and the controller calculates the weight change. The detection principles of the torque sensor and the weight sensor are existing known technologies and will not be elaborated on here.
[0080] In one embodiment, the refrigerator provided by this application includes a memory and a processor. The memory is used to store a computer program. The processor is used to invoke the computer program to implement the freezing control method as described above.
[0081] For example, the processors communicate with each other via a communication bus. The processor can be an FPGA (Field-Programmable Gate Array) or other devices with logic processing capabilities, such as an MCU (Microcontroller Unit) or a CPU (Central Processing Unit).
[0082] In one embodiment, this application also provides a readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the freezing control method as described above.
[0083] For example, readable storage media include, but are not limited to, any type of disk (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic cards, or optical cards. That is, readable storage media include any medium by which a device (e.g., a computer) stores or transmits information in a readable form.
[0084] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A method for controlling the freezing of a refrigerator, characterized in that, The refrigerator includes a freezer compartment, a main air outlet, and end air outlets; the main air outlet is located in the middle region of the top wall of the freezer compartment; the end air outlets are located in at least one edge region of the top wall of the freezer compartment; the freezing control method includes: Obtain the temperature of the food placed in the freezer compartment; determine whether the food temperature is within the temperature range of the maximum ice crystal formation zone; If the location is specified, control the main air outlet to open and control the main air outlet to discharge air to the lower part of the freezer compartment; if the location is not specified, control the end air outlet to open and control the end air outlet to discharge air to the lower part of the freezer compartment, and control the main air outlet to discharge air to the side of the freezer compartment or close it.
2. The freezing control method according to claim 1, characterized in that, The temperature range of the maximum ice crystal formation zone includes the highest temperature; after determining that the temperature of the food ingredient is not within the temperature range of the maximum ice crystal formation zone, the following is also included: Determine whether the temperature of the food ingredient is higher than the highest temperature of the maximum ice crystal formation zone; if it is higher, control the end air outlet to open and control the end air outlet to discharge air to the lower part of the freezer chamber with an air discharge area of more than 50%, and also control the main air outlet to discharge air to the side of the freezer chamber with an air discharge area of more than 50%.
3. The freezing control method according to claim 1, characterized in that, The temperature range of the maximum ice crystal formation zone includes the lowest temperature; after determining that the temperature of the food ingredient is not within the temperature range of the maximum ice crystal formation zone, the following is also included: Determine whether the temperature of the food ingredient is lower than the minimum temperature of the maximum ice crystal formation zone; if it is lower, control the end air outlet to open and control the end air outlet to discharge air to the lower part of the freezer chamber with an air discharge area of more than 50%, and also control the main air outlet to close.
4. The freezing control method according to claim 1, characterized in that, The refrigerator also includes an auxiliary air outlet disposed on the side wall of the freezer compartment; after determining that the temperature of the food is within the temperature range of the maximum ice crystal formation zone, it further includes: controlling the opening of the auxiliary air outlet.
5. The freezing control method according to claim 3, characterized in that, After determining that the temperature of the food ingredient is lower than the minimum temperature, the process further includes: Determine whether the temperature of the food reaches the preset freezing temperature; the preset freezing temperature is less than the lowest temperature of the maximum ice crystal formation zone, and greater than the optimal freezing temperature of the food. If so, then stop cooling and detect the concentration of gas emitted by the food in the freezer compartment to determine whether the concentration detection result is greater than the preset concentration threshold. If the value is greater than 50%, then the air outlet area of the end air outlet is controlled to be less than 50%, and the air outlet area of the main air outlet is greater than 50%; and the target speed of the refrigeration fan is controlled to continue blowing air into the refrigeration chamber at the rated speed.
6. The freezing control method according to claim 5, characterized in that, After determining that the food temperature has reached the preset freezing temperature and stopping the refrigeration, the process further includes: The humidity of the food in the freezer compartment is detected, and it is determined whether the humidity detection result is less than a preset humidity threshold. If the area is less than 50%, the air outlet area of the end air outlet is controlled to be greater than 50%, and the air outlet area of the main air outlet is less than 50%; and the target speed of the refrigeration fan is controlled to continue blowing air into the refrigeration chamber at a speed less than the rated speed but greater than half of the rated speed.
7. The freezing control method according to claim 5, characterized in that, The refrigerator also includes an auxiliary air outlet disposed on the side wall of the freezer compartment; after detecting that the gas concentration is greater than a preset concentration threshold, the air outlet area of the auxiliary air outlet is controlled to be greater than 50%, and the air is blown into the freezer compartment in a horizontal direction.
8. The freezing control method according to any one of claims 1 to 7, characterized in that, Before obtaining the temperature of the food placed in the freezer compartment, the process also includes: The door of the freezer compartment was detected to be open, and the opening duration exceeded a preset door opening duration threshold. The weight of the food in the freezer compartment is obtained, and it is determined whether the weight of the food has increased; if so, the temperature of the food placed in the freezer compartment is detected.
9. A refrigerator, characterized in that, include: Memory and processor; The memory is used to store computer programs; The processor is used to invoke the computer program to implement the freezing control method as described in any one of claims 1 to 8.
10. A readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the freezing control method as described in any one of claims 1 to 8.