Refrigerator temperature control method and device and storage medium

Abstract

The invention relates to the technical field of refrigerator refrigeration, in particular to a refrigerator temperature control method and device and a storage medium, and the method comprises the steps that position information of an air outlet and food coordinate information of any position of food in a refrigeration containing cavity are obtained; calculating the rotation angle of the air door assembly according to the rotation angle calculation model of the air door assembly to obtain an upper limit value of the rotation angle of the air door assembly; the compressor cooling capacity value is calculated according to the compressor cooling capacity value calculation model, the compressor cooling capacity value is obtained, and the theoretical cooling capacity value is used for indicating the compressor cooling capacity value theoretically needed by the refrigeration containing cavity; the air door assembly is controlled to rotate by the upper limit value of the rotation angle, and the compressor is controlled to refrigerate the refrigeration containing cavity according to the compressor cooling capacity value; according to the refrigerator, the rotating angle of the air door assembly can be adjusted according to the food volume and the food position, uneven temperature distribution of the refrigeration containing cavity caused by shielding of food placed in the refrigerator is avoided, and then the hysteresis quality of temperature detection can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of refrigerator refrigeration technology, and in particular to a refrigerator temperature control method, device and storage medium. Background Art

[0002] Existing refrigerator temperature control systems typically rely on preset temperature sensor data to adjust the operating status of the refrigeration module through feedback to maintain a constant temperature in the refrigerator or freezer compartment. However, in actual use, the placement of food inside the refrigerator and any obstructions often affect the accuracy of temperature detection, leading to uneven local temperature distribution, which in turn reduces the refrigerator's overall energy efficiency and food preservation performance.

[0003] Traditional refrigerator temperature sensors are typically fixed in specific locations within the refrigerator's interior (e.g., near the evaporator or on the sidewalls). The temperature they detect only represents the local environment and fails to fully reflect the actual temperature distribution within the refrigerator. When food is piled up or packaging materials obstruct the sensor, the sensor's temperature reading may deviate from the actual temperature, leading to misjudgments in the control system and, in turn, affecting cooling efficiency. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention can adjust the rotation angle of the damper assembly according to the volume and position of the food, thereby avoiding uneven temperature distribution in the refrigeration chamber of the refrigerator caused by obstruction of the food placed therein, and thus avoiding the lag in temperature detection.

[0005] The present invention provides a refrigerator temperature control method, which is applied to a refrigerator, wherein the refrigerator comprises a refrigeration accommodating chamber, a compressor for refrigerating the refrigeration accommodating chamber, and a damper assembly provided at an air outlet in the refrigeration accommodating chamber; the method comprises:

[0006] In response to the refrigerator door closing information, obtaining the position information of the air outlet and the food coordinate information of any position of the food in the refrigeration accommodating cavity;

[0007] Using the food coordinate information and the position information of the air outlet as inputs of a damper assembly rotation angle calculation model, the damper assembly rotation angle calculation is performed to obtain an upper limit value of the damper assembly rotation angle;

[0008] Using the upper limit of the rotation angle of the damper assembly and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs of a compressor cooling capacity calculation model, a compressor cooling capacity calculation is performed to obtain a compressor cooling capacity value, wherein the theoretical cooling capacity value is used to indicate the theoretical cooling capacity required by the refrigeration accommodating chamber;

[0009] The damper assembly is controlled to rotate to the upper limit of the rotation angle, and the compressor is controlled to cool the refrigeration accommodating chamber with the compressor cooling capacity value.

[0010] Furthermore, before the step of using the upper limit of the rotation angle of the damper assembly and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs of a compressor cooling capacity calculation model, the method includes:

[0011] Obtaining a temperature difference between the food and the refrigeration chamber, a volume of the food, a temperature difference compensation coefficient, and a volume compensation coefficient;

[0012] The temperature difference, the volume of the food, the temperature difference compensation coefficient and the volume compensation coefficient are used as inputs of a theoretical cooling value calculation model to perform the theoretical cooling value calculation to obtain the theoretical cooling value required in the refrigeration accommodation chamber.

[0013] Furthermore, the refrigerator further comprises a plurality of temperature detection members, wherein the plurality of temperature detection members are used to respectively detect temperature values ​​of a plurality of preset spaces corresponding to the plurality of temperature detection members, wherein the volume of each of the preset spaces is a preset volume;

[0014] Before the step of obtaining the temperature difference between the food and the refrigeration chamber, the volume of the food, the temperature difference compensation coefficient, and the volume compensation coefficient, the method further includes:

[0015] Acquiring temperature values ​​detected by the plurality of temperature detecting members and position information of the plurality of preset spaces;

[0016] determining temperature gradient information of two adjacent preset spaces according to the temperature values ​​detected by the multiple temperature detection members and the position information of the multiple preset spaces;

[0017] The temperature gradient information, the preset volume and the number of preset spaces in the refrigeration accommodating chamber are used as inputs of a food volume calculation model to perform food volume calculation to obtain the volume of the food in the refrigeration accommodating chamber.

[0018] Furthermore, before the step of obtaining the temperature values ​​detected by the multiple temperature detection members and the position information of the multiple preset spaces, the method further includes:

[0019] Dividing the refrigeration accommodating cavity into a plurality of preset spaces according to the preset volume;

[0020] The number of the preset spaces in the refrigeration accommodating cavity is determined according to the volume of the refrigeration accommodating cavity and the preset volume.

[0021] Furthermore, the method further comprises:

[0022] A temperature gradient information calculation model is constructed between two adjacent preset spaces, wherein the temperature gradient information calculation model is constructed according to the position coordinates of the multiple preset spaces and the temperatures measured by the multiple temperature detection members corresponding to the multiple preset spaces.

[0023] Furthermore, the method further comprises:

[0024] Acquiring temperature values ​​detected by multiple temperature detection components in the refrigeration accommodating chamber;

[0025] determining an average temperature value of the refrigeration accommodating chamber according to the temperature values ​​detected by the multiple temperature detection elements;

[0026] A temperature difference calculation model between the food and the refrigeration chamber is constructed, wherein the temperature difference calculation model is such that the temperature difference is equal to the difference between the set temperature value of the refrigeration chamber and the average temperature value of the refrigeration chamber.

[0027] Furthermore, the method further comprises:

[0028] Obtaining food name information of the food in the refrigeration accommodating chamber of the refrigerator;

[0029] Determining the optimal storage temperature range corresponding to each of the foods according to a preset food parameter table; wherein the preset food parameter table associates and stores the food name information with the optimal storage temperature range corresponding to the food name information;

[0030] The minimum temperature value in the plurality of the optimal storage temperature ranges is selected as the set temperature value of the refrigeration accommodating chamber.

[0031] Furthermore, the refrigerator further comprises an information prompting device;

[0032] Before the step of obtaining the position information of the air outlet and the coordinate information of the food at any position of the food in the refrigeration chamber, the method further includes:

[0033] obtaining a distance between the food and the damper assembly;

[0034] If the distance between the food and the damper assembly is greater than a preset distance, performing the step of acquiring position information of the air outlet and coordinate information of food at any position of the food in the refrigeration chamber;

[0035] If the distance between the food and the damper assembly is less than a preset distance, the information prompt device is controlled to display obstruction prompt information of the damper assembly.

[0036] Another aspect of the present invention further provides a refrigerator temperature control device, which is used to implement the refrigerator temperature control method described above, and comprises:

[0037] a first acquiring unit, configured to acquire, in response to refrigerator door closing information, position information of the air outlet and food coordinate information of any position of the food in the refrigeration accommodating cavity;

[0038] a first execution unit, configured to use the food coordinate information and the position information of the air outlet as inputs of a damper assembly rotation angle calculation model to calculate the damper assembly rotation angle and obtain an upper limit value of the damper assembly rotation angle;

[0039] a second execution unit, configured to calculate the compressor cooling capacity using the upper limit of the rotation angle of the damper assembly and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs of a compressor cooling capacity calculation model, and obtain a compressor cooling capacity value, wherein the theoretical cooling capacity value is used to indicate the cooling capacity value theoretically required for the refrigeration accommodating chamber;

[0040] The third execution unit is used to control the damper assembly to rotate to the upper limit of the rotation angle, and control the compressor to cool the refrigeration accommodating chamber with the compressor cooling capacity value.

[0041] On the other hand, the present invention also protects a computer-readable storage medium, which stores at least one instruction or at least one program, and the at least one instruction or at least one program is loaded and executed by a processor to implement the refrigerator temperature control method as described above.

[0042] The implementation of the embodiments of the present invention has the following beneficial effects:

[0043] The present invention can obtain the upper limit of the rotation angle of the damper assembly after food is placed in the refrigerator based on the food coordinate information, the position information of the air outlet and the calculation model of the damper assembly rotation angle; at the same time, it can also calculate the compressor cooling value based on the upper limit of the rotation angle, the theoretical cooling capacity required in the refrigeration chamber and the compressor cooling capacity calculation model to obtain the compressor cooling capacity value; control the damper assembly to rotate to the above-mentioned upper limit of the rotation angle, and control the compressor to cool the refrigeration chamber with the above-mentioned compressor cooling capacity value, so as to achieve the purpose of adjusting the rotation angle of the damper assembly according to the volume and position of the food, avoiding uneven temperature distribution in the refrigeration chamber caused by obstruction of the food placed in the refrigerator, and thus avoiding the hysteresis of temperature detection, avoiding frequent starting and stopping of the compressor, thereby avoiding increasing the energy consumption of the compressor, and avoiding the sound generated by the frequent starting and stopping of the compressor to affect the user, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] To more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0045] Figure 1 This is a flow chart of the refrigerator temperature control method of this embodiment;

[0046] Figure 2 This is a structural diagram of the refrigerator temperature control device of this embodiment;

[0047] Figure 3 This is a structural diagram of the food placed in the refrigeration holding chamber in this embodiment.

[0048] Among them, the reference numerals in the figure correspond to:

[0049] 1-first acquisition unit; 2-first execution unit; 3-second execution unit; 4-third execution unit; 5-food; 6-damper assembly. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and the accompanying drawings are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0052] Figure 1 This is a flow chart of a refrigerator temperature control method provided by an embodiment of the present application. This specification provides method operation steps such as the embodiment or flow chart, but may include more or fewer operation steps based on conventional or non-creative labor. The order of steps listed in the embodiment is only one way of executing the order of many steps and does not represent the only execution order. When the actual system or server product is executed, it can be executed in the order of the method shown in the embodiment or the accompanying drawings or in parallel (for example, in a parallel processor or multi-threaded processing environment).

[0053] See attached Figures 1 to 3 This embodiment provides a refrigerator temperature control method, which is applied to a refrigerator having a refrigeration chamber, a compressor for refrigerating the refrigeration chamber, and a damper assembly 6 provided at an air outlet in the refrigeration chamber. The method includes:

[0054] S101: In response to the refrigerator door closing information, obtaining the position information of the air outlet and the food coordinate information of any position of the food 5 in the refrigeration chamber;

[0055] In this embodiment, after the refrigerator door is closed, the position of the food 5 in the refrigeration chamber will not be moved, and the food coordinate information of any position of the food 5 obtained at this time is more accurate. Therefore, after the refrigerator door is closed, the controller responds to the refrigerator door closing information, and the controller obtains the position information of the air outlet and the food coordinate information of any position of the food 5 in the refrigeration chamber, wherein the position information of the air outlet can also be understood as the coordinate information of the air outlet, and the coordinate information of the air outlet and the food coordinate information are located in the same coordinate system.

[0056] S102: Using the food coordinate information and the air outlet position information as inputs to a damper assembly rotation angle calculation model, the damper assembly rotation angle is calculated to obtain an upper limit value of the rotation angle of the damper assembly 6;

[0057] In this embodiment, the controller substitutes the food coordinate information of any position of the food 5 into the damper assembly rotation angle calculation model, calculates the damper assembly rotation angle corresponding to the food coordinate information of any position of the food 5, obtains the rotation angle of multiple groups of damper assemblies 6, and obtains the maximum rotation angle among the multiple groups of rotation angles of the damper assemblies 6 as the upper limit value of the rotation angle of the damper assembly 6.

[0058] S103: Using the upper limit of the rotation angle of the damper assembly 6 and the theoretical cooling capacity required in the refrigeration chamber as inputs to the compressor cooling capacity calculation model, the compressor cooling capacity calculation is performed to obtain the compressor cooling capacity value. The theoretical cooling capacity value is used to indicate the theoretical cooling capacity required in the refrigeration chamber.

[0059] In this embodiment, the controller obtains the temperature difference between the food 5 and the refrigeration chamber, the volume of the food 5, the temperature difference compensation coefficient and the volume compensation coefficient, and calculates the theoretical cooling value based on the above parameters to obtain the theoretical cooling value. The controller obtains the compressor cooling value based on the upper limit value of the rotation angle, the theoretical cooling value and the compressor cooling value calculation model.

[0060] S104: Control the damper assembly 6 to rotate to an upper limit value of the rotation angle, and control the compressor to cool the refrigeration accommodating chamber with the compressor cooling capacity value; the present invention can obtain the upper limit value of the rotation angle of the damper assembly 6 after the food 5 is placed according to the food coordinate information, the position information of the air outlet and the damper assembly rotation angle calculation model; at the same time, it can also calculate the compressor cooling capacity value according to the upper limit value of the rotation angle, the theoretical cooling capacity value required in the refrigeration accommodating chamber and the compressor cooling capacity calculation model to obtain the compressor cooling capacity value; control the damper assembly 6 to rotate to the above-mentioned upper limit value of the rotation angle, and control the compressor to cool the refrigeration accommodating chamber with the above-mentioned compressor cooling capacity value, so as to adjust the rotation angle of the damper assembly 6 according to the volume and position of the food, avoid uneven temperature distribution in the refrigeration accommodating chamber caused by the obstruction of the food 5 placed in the refrigerator, and thus avoid the hysteresis of temperature detection, avoid frequent starting and stopping of the compressor, thereby avoid increasing the energy consumption of the compressor, and avoid the sound generated by the frequent starting and stopping of the compressor to affect the user, thereby improving the user experience.

[0061] In this embodiment, the refrigeration accommodating chamber may be a refrigerator or a freezer, and the specific refrigeration environment is not limited here.

[0062] In some possible embodiments, before the step of using the upper limit of the rotation angle of the damper assembly 6 and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs to the compressor cooling capacity calculation model, the method includes:

[0063] S1021: Obtaining the temperature difference between the food 5 and the refrigeration chamber, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient;

[0064] In this embodiment, the controller obtains the temperature difference between the food 5 and the refrigeration chamber. The above temperature difference is the difference between the temperature value set for the refrigeration chamber and the average temperature of the refrigeration chamber. The average temperature of the refrigeration chamber is a value obtained by averaging the temperatures detected by multiple temperature detection components. The temperature difference compensation coefficient obtained by the controller is obtained by measuring in advance after the refrigerator structure design is completed. The volume compensation coefficient is obtained by measuring the cooling capacity required for standard food (for example, 1 cubic decimeter of water). There is no direct relationship between the temperature difference compensation coefficient and the volume compensation coefficient. Here, neither the temperature difference compensation coefficient nor the volume compensation coefficient is limited. The preferred temperature difference compensation coefficient is 100J / ℃; the volume compensation coefficient is 500J / dm 3 .

[0065] S1022: Using the temperature difference, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient as inputs of the theoretical cooling value calculation model, the theoretical cooling value is calculated to obtain the theoretical cooling value required in the refrigeration chamber. In this example, the theoretical cooling value can be accurately determined based on the volume of the food 5, thereby preliminarily avoiding the uneven temperature distribution in the refrigeration chamber caused by the obstruction of the food 5 placed in the refrigerator, and at the same time ensuring the accuracy of the subsequent compressor cooling value calculation, thereby avoiding the increase in compressor energy consumption due to inaccurate compressor cooling value calculation.

[0066] In this embodiment, the theoretical cooling capacity calculation model is: Q req =k1ΔT+k2V food ;

[0067] Among them, Q req is the theoretical cooling capacity; V food is the volume of food 5; ΔT is the temperature difference; k1 is the temperature difference compensation coefficient; k2 is the volume compensation coefficient.

[0068] In some possible embodiments, the refrigerator further includes a plurality of temperature detecting elements, the plurality of temperature detecting elements being used to respectively detect temperature values ​​of a plurality of preset spaces corresponding to the plurality of temperature detecting elements, wherein the volume of each preset space is a preset volume;

[0069] Before the step of obtaining the temperature difference between the food 5 and the refrigeration chamber, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient, the method further includes:

[0070] S10211: Acquire temperature values ​​detected by multiple temperature detection components and position information of multiple preset spaces;

[0071] In this embodiment, each preset space has a temperature detection component for detecting the temperature thereof, and the controller obtains the position information of the plurality of preset spaces and the temperature value detected by the temperature detection component corresponding to each preset space.

[0072] S10212: Determining temperature gradient information of two adjacent preset spaces based on temperature values ​​detected by the multiple temperature detection elements and position information of the multiple preset spaces;

[0073] In this embodiment, the controller calculates the temperature gradient information between all adjacent preset spaces to determine the preset space with the largest temperature difference, thereby determining the location of the food 5 and the volume of the food 5.

[0074] S10213: Using the temperature gradient information, the preset volume and the number of preset spaces in the refrigeration chamber as inputs to the food volume calculation model, the food volume calculation is performed to obtain the volume of the food 5 in the refrigeration chamber. The food volume calculation model can accurately determine the food volume, which paves the way for the subsequent calculation of the theoretical cooling value, ensuring the accuracy of the subsequent theoretical cooling value calculation, and then ensuring the accuracy of the subsequent compressor cooling value calculation, thereby avoiding the increase in compressor energy consumption due to inaccurate compressor cooling value calculation.

[0075] In this embodiment, the food volume calculation model is: in, is the temperature gradient between two adjacent preset spaces, V k is the preset volume, Θ is a step function, M is the number of the preset spaces in the refrigeration chamber, T th is the temperature difference between the food 5 and the refrigeration chamber.

[0076] Specifically, it can be understood from the food volume calculation model that when Greater than T th In the case of Θ equal to 1, when Less than T th In the case where Θ is equal to 0, it can be seen that the above food volume calculation model can accurately determine which preset space contains food 5, and determine the volume of food 5 according to the position and quantity of the preset space.

[0077] In some possible embodiments, before the step of obtaining temperature values ​​detected by a plurality of temperature detection elements and position information of a plurality of preset spaces, the method further includes:

[0078] S102111: Divide the refrigeration chamber into a plurality of preset spaces according to a preset volume;

[0079] In this embodiment, the controller divides the space in the refrigeration accommodation chamber into preset volumes to obtain a plurality of preset spaces; wherein the preset volumes are set according to actual conditions.

[0080] Specifically, the preset volumes of the preset spaces in the same refrigeration accommodating chamber are equal, and the preset volumes may be small volume units of 1-20 cubic centimeters; preferably, the preset volumes may be small volume units of 1 cubic centimeter.

[0081] S102112: Determine the number of preset spaces in the refrigeration accommodating chamber based on the volume of the refrigeration accommodating chamber and the preset volume. By dividing the refrigeration accommodating chamber into multiple preset spaces of equal volume, and multiple temperature detection components can detect the temperature of each preset space in the refrigeration accommodating chamber, the accuracy of temperature detection at any position in the refrigeration accommodating chamber can be ensured. At the same time, by setting multiple preset spaces of equal volume, it is convenient to determine the volume of food 5 in the refrigeration accommodating chamber according to the temperature difference of each preset space, so as to achieve the effect of accurately obtaining the volume of food 5.

[0082] In this embodiment, the controller obtains the volume of the refrigeration accommodating chamber and the preset volume, and divides the volume of the refrigeration accommodating chamber by the preset volume. The obtained value is the amount of preset space in the refrigeration accommodating chamber.

[0083] In some possible embodiments, the method further includes:

[0084] S10201: Construct a temperature gradient information calculation model between two adjacent preset spaces. The temperature gradient information calculation model is constructed based on the position coordinates of multiple preset spaces and the temperatures measured by multiple temperature detection components corresponding to the multiple preset spaces. By constructing the temperature gradient information calculation model between two adjacent preset spaces, the temperature gradient between the two adjacent preset spaces can be accurately obtained, thereby determining the volume of the food 5 in the refrigeration holding cavity based on the temperature gradient information, thereby achieving the effect of accurately obtaining the volume of the food 5.

[0085] In this embodiment, the temperature gradient information calculation model is:

[0086] Among them, the position coordinates of the multiple preset spaces are (x i ,y i ,z i ), the temperature measured by the multiple temperature detection components is T i (i=1,2,…,N).

[0087] In some possible embodiments, the method further includes:

[0088] S10202: Acquire temperature values ​​detected by multiple temperature detection components in the refrigeration chamber;

[0089] S10203: Determine an average temperature value of the refrigeration accommodation chamber based on temperature values ​​detected by the multiple temperature detection components;

[0090] In this embodiment, the controller obtains the temperature values ​​detected by multiple temperature detection components in the refrigeration chamber, and calculates the average value of the above multiple temperature values ​​to determine the average temperature value of the refrigeration chamber. The average temperature value obtained in this way is more accurate, thereby ensuring the accuracy and rationality of the subsequent temperature difference value calculation.

[0091] S10204: Construct a temperature difference calculation model between the food 5 and the refrigeration chamber. The temperature difference calculation model is that the temperature difference is equal to the difference between the set temperature value of the refrigeration chamber and the average temperature value of the refrigeration chamber. By determining the average temperature value of the refrigeration chamber based on multiple temperature detection components, the accuracy of the average temperature value can be guaranteed, thereby ensuring the accuracy of subsequent temperature difference calculations.

[0092] In this embodiment, the temperature difference calculation model is: ΔT = T set -T avg ; Among them, T set is the set temperature value of the refrigeration chamber; T avg is the average temperature of the refrigeration chamber.

[0093] Preferably, the set temperature of the refrigeration accommodating chamber has two ranges. When the refrigeration accommodating chamber is a refrigerator, the set range is 0-5°C; when the refrigeration accommodating chamber is a freezer, the set range is -18 to -14°C.

[0094] In some possible embodiments, the method further includes:

[0095] S10205: Obtaining food name information of the food 5 in the refrigeration chamber of the refrigerator;

[0096] In this embodiment, at least two detection components for detecting food image information are provided in the refrigeration housing cavity, and the at least two detection components are arranged at intervals in the refrigeration housing cavity so as to obtain multi-angle image information of the food 5; the controller obtains the food image information and determines the food name information corresponding to the food based on the food image information.

[0097] S10206: Determine the optimal storage temperature range corresponding to each food 5 according to a preset food parameter table; wherein the preset food parameter table associates and stores food name information with the optimal storage temperature range corresponding to the food name information;

[0098] In this embodiment, the controller obtains a preset food parameter table and food name information, and compares the food name information with the preset food parameter table to obtain the optimal storage temperature range corresponding to the food name information;

[0099] S10207: Select the minimum temperature value among multiple optimal storage temperature ranges as the set temperature value of the refrigeration chamber, obtain the name information of all foods in the refrigeration chamber of the refrigerator, and determine the optimal storage temperature range according to the preset food parameter table, and then select the minimum temperature value among multiple optimal storage temperature ranges as the set temperature value of the refrigeration chamber. This can ensure that all foods 5 in the refrigeration chamber will not deteriorate in a short time, thereby extending the storage time of all foods 5.

[0100] In some possible embodiments, the method further includes:

[0101] See attached Figure 3 , attached Figure 3 Where Φ is the rotation angle of the damper assembly 6, (x f ,y f ) is the coordinate of the food 5, (x0, y0) is the coordinate of the air outlet of the damper assembly 6; the damper assembly rotation angle calculation model is constructed, and the temperature gradient information calculation model is:

[0102] Specifically, Φ being the rotation angle of the damper assembly 6 means that the damper assembly 6 rotates from an initial direction parallel to the X-axis toward the Y-axis by an angle of φ.

[0103] In some possible embodiments, the method further includes:

[0104] Construct a compressor cooling capacity calculation model, the compressor cooling capacity calculation model is: Q(Φ)=Q req / arcsinΦ; where Q(Φ) is the cooling capacity of the compressor when the damper rotates at an angle of Φ; Q req is the theoretical cooling capacity.

[0105] In some possible embodiments, the refrigerator further includes an information prompting device;

[0106] Before the step of obtaining the position information of the air outlet and the coordinate information of the food at any position of the food in the refrigeration chamber, the method further includes:

[0107] S1011: Obtaining the distance between the food 5 and the damper assembly 6;

[0108] S1012: If the distance between the food 5 and the damper assembly 6 is greater than the preset distance, the step of obtaining the position information of the air outlet and the coordinate information of the food at any position of the food in the refrigeration chamber is executed;

[0109] In this embodiment, the refrigerator also includes at least two distance sensors, which are arranged at intervals in the refrigeration holding cavity. The controller can obtain the distance between the food and the damper assembly 6 based on the at least two distance sensors. When the controller detects that the distance between the food 5 and the damper assembly 6 is greater than the preset distance, it indicates that the food 5 does not block the position of the air outlet of the damper assembly 6, and then the steps of obtaining the position information of the air outlet and the food coordinate information of any position of the food in the refrigeration holding cavity can be executed.

[0110] S1013: If the distance between the food 5 and the damper assembly 6 is less than the preset distance, the control information prompt device displays the blocking prompt information of the damper assembly 6. By obtaining the distance between the food 5 and the damper assembly 6, when the distance between the food 5 and the damper assembly 6 is less than the preset distance, it is regarded as that the food 5 blocks the air outlet of the damper assembly 6, which will cause the temperature of the refrigeration chamber to rise and affect the refrigeration effect of the refrigeration chamber. By controlling the information prompt device to display the blocking prompt information, the user can be prompted to move the position of the food 5 to avoid blocking the air outlet of the damper assembly 6. In this way, the refrigeration effect of the refrigeration chamber can be guaranteed and the user experience can be improved.

[0111] In this embodiment, when the controller detects that the distance between the food 5 and the damper assembly 6 is less than the preset distance, it indicates that the food 5 blocks the air outlet of the damper assembly 6. At this time, the controller controls the information prompt device to display the blocking prompt information of the damper assembly 6 to prompt the operator so that the operator can move the position of the food 5 in time to move the food 5 from the position blocking the air outlet to the position not blocking the air outlet.

[0112] Refrigerator temperature control methods include:

[0113] S1011: Obtaining the distance between the food 5 and the damper assembly 6;

[0114] S1012: If the distance between the food 5 and the damper assembly 6 is greater than the preset distance, the step of obtaining the position information of the air outlet and the coordinate information of the food at any position of the food in the refrigeration chamber is executed;

[0115] S1013: If the distance between the food 5 and the damper assembly 6 is less than the preset distance, the information prompting device is controlled to display a blocking prompting message of the damper assembly 6;

[0116] S101: In response to the refrigerator door closing information, obtaining the position information of the air outlet and the food coordinate information of any position of the food 5 in the refrigeration chamber;

[0117] S102111: Divide the refrigeration chamber into a plurality of preset spaces according to a preset volume;

[0118] S102112: Determine the number of preset spaces in the refrigeration accommodating cavity according to the volume of the refrigeration accommodating cavity and the preset volume;

[0119] S10211: Acquire temperature values ​​detected by multiple temperature detection components and position information of multiple preset spaces;

[0120] S10201: Constructing a temperature gradient information calculation model between two adjacent preset spaces, wherein the temperature gradient information calculation model is constructed based on the position coordinates of the plurality of preset spaces and the temperatures measured by the plurality of temperature detection elements corresponding to the plurality of preset spaces;

[0121] S10202: Acquire temperature values ​​detected by multiple temperature detection components in the refrigeration chamber;

[0122] S10203: Determine an average temperature value of the refrigeration accommodation chamber based on temperature values ​​detected by the multiple temperature detection components;

[0123] S10204: Constructing a temperature difference calculation model between the food 5 and the refrigeration chamber, wherein the temperature difference calculation model is such that the temperature difference is equal to the difference between the set temperature of the refrigeration chamber and the average temperature of the refrigeration chamber;

[0124] S10205: Obtaining food name information of the food 5 in the refrigeration chamber of the refrigerator;

[0125] S10206: Determine the optimal storage temperature range corresponding to each food 5 according to a preset food parameter table; wherein the preset food parameter table associates and stores food name information with the optimal storage temperature range corresponding to the food name information;

[0126] S10207: Selecting a minimum temperature value among the multiple optimal storage temperature ranges as a set temperature value of the refrigeration accommodation chamber;

[0127] S10212: Determining temperature gradient information of two adjacent preset spaces based on temperature values ​​detected by the multiple temperature detection elements and position information of the multiple preset spaces;

[0128] S10213: Using the temperature gradient information, the preset volume, and the number of preset spaces in the refrigeration chamber as inputs to a food volume calculation model, the food volume calculation is performed to obtain the volume of the food 5 in the refrigeration chamber.

[0129] S1021: Obtaining the temperature difference between the food 5 and the refrigeration chamber, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient;

[0130] S1022: Using the temperature difference, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient as inputs to a theoretical cooling capacity calculation model, a theoretical cooling capacity calculation is performed to obtain the theoretical cooling capacity required in the refrigeration chamber.

[0131] S102: Using the food coordinate information and the air outlet position information as inputs to a damper assembly rotation angle calculation model, the damper assembly rotation angle is calculated to obtain an upper limit value of the rotation angle of the damper assembly 6;

[0132] S103: Using the upper limit of the rotation angle of the damper assembly 6 and the theoretical cooling capacity required in the refrigeration chamber as inputs to the compressor cooling capacity calculation model, the compressor cooling capacity calculation is performed to obtain the compressor cooling capacity value. The theoretical cooling capacity value is used to indicate the theoretical cooling capacity required in the refrigeration chamber.

[0133] S104: Control the damper assembly 6 to rotate to an upper limit of the rotation angle, and control the compressor to cool the refrigeration accommodating chamber at the compressor cooling capacity.

[0134] Another aspect of the present invention further provides a refrigerator temperature control device, which is used to implement the above refrigerator temperature control method, and includes:

[0135] The first acquisition unit 1 is configured to acquire the position information of the air outlet and the food coordinate information of any position of the food 5 in the refrigeration chamber in response to the refrigerator door closing information;

[0136] The first execution unit 2 is configured to use the food coordinate information and the position information of the air outlet as inputs of a damper assembly rotation angle calculation model to calculate the damper assembly rotation angle and obtain an upper limit value of the rotation angle of the damper assembly 6;

[0137] The second execution unit 3 is configured to calculate the compressor cooling capacity using the upper limit of the rotation angle of the damper assembly 6 and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs of a compressor cooling capacity calculation model to obtain a compressor cooling capacity value, where the theoretical cooling capacity value indicates the theoretical cooling capacity required in the refrigeration accommodating chamber;

[0138] The third execution unit 4 is used to control the upper limit value of the rotation angle of the damper assembly 6, and control the compressor to cool the refrigeration accommodating chamber with the compressor cooling capacity value. The present invention can obtain the upper limit value of the rotation angle of the damper assembly 6 after the food 5 is placed according to the food coordinate information, the position information of the air outlet and the damper assembly rotation angle calculation model; at the same time, it can also calculate the compressor cooling capacity value according to the upper limit value of the rotation angle, the theoretical cooling capacity value required in the refrigeration accommodating chamber and the compressor cooling capacity calculation model to obtain the compressor cooling capacity value; control the damper assembly 6 to rotate the above-mentioned upper limit value of the rotation angle, and control the compressor to cool the refrigeration accommodating chamber with the above-mentioned compressor cooling capacity value, so as to achieve the purpose of adjusting the rotation angle of the damper assembly 6 according to the volume of food and the position of food 5, avoiding uneven temperature distribution in the refrigeration accommodating chamber caused by the obstruction of the food 5 placed in the refrigerator, and thus avoiding the hysteresis of temperature detection, avoiding frequent starting and stopping of the compressor, thereby avoiding increasing the energy consumption of the compressor, and avoiding the sound generated by the frequent starting and stopping of the compressor to affect the user, thereby improving the user experience.

[0139] The refrigerator temperature control device also includes:

[0140] A second acquisition unit is used to obtain the temperature difference between the food 5 and the refrigeration chamber, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient;

[0141] a fourth execution unit, configured to calculate the theoretical cooling capacity using the temperature difference, the volume of the food 5, the temperature difference compensation coefficient, and the volume compensation coefficient as inputs of a theoretical cooling capacity calculation model to obtain the theoretical cooling capacity required in the refrigeration chamber;

[0142] a third acquiring unit, configured to acquire temperature values ​​detected by a plurality of temperature detecting members and position information of a plurality of preset spaces;

[0143] a fifth execution unit, configured to determine temperature gradient information of two adjacent preset spaces according to the temperature values ​​detected by the plurality of temperature detection elements and position information of the plurality of preset spaces;

[0144] a sixth execution unit, configured to calculate the food volume using the temperature gradient information, the preset volume, and the number of preset spaces in the refrigeration chamber as inputs to a food volume calculation model, and obtain the volume of the food 5 in the refrigeration chamber;

[0145] The first execution unit is used to divide the refrigeration accommodating chamber into a plurality of preset spaces with a preset volume;

[0146] an eighth execution unit, configured to determine the number of preset spaces in the refrigeration accommodating cavity according to the volume of the refrigeration accommodating cavity and the preset volume;

[0147] a ninth execution unit, configured to construct a temperature gradient information calculation model between two adjacent preset spaces, wherein the temperature gradient information calculation model is constructed based on the position coordinates of the plurality of preset spaces and the temperatures measured by the plurality of temperature detection elements corresponding to the plurality of preset spaces;

[0148] a fourth acquiring unit, configured to acquire temperature values ​​detected by a plurality of temperature detecting elements in the refrigeration accommodation chamber;

[0149] a tenth execution unit, configured to determine an average temperature value of the refrigeration accommodation chamber according to the temperature values ​​detected by the plurality of temperature detection elements;

[0150] An eleventh execution unit is configured to construct a temperature difference calculation model between the food 5 and the refrigeration chamber, wherein the temperature difference calculation model is configured such that the temperature difference is equal to the difference between the set temperature of the refrigeration chamber and the average temperature of the refrigeration chamber;

[0151] A fifth acquiring unit, configured to acquire food name information of the food 5 in the refrigeration compartment of the refrigerator;

[0152] a twelfth execution unit, configured to determine an optimal storage temperature range corresponding to each food 5 according to a preset food parameter table; wherein the preset food parameter table stores food name information and an optimal storage temperature range corresponding to the food name information in association with each other;

[0153] a thirteenth execution unit, configured to select a minimum temperature value among the multiple optimal storage temperature ranges as a set temperature value of the refrigeration accommodation chamber;

[0154] a sixth obtaining unit, configured to obtain the distance between the food 5 and the damper assembly 6;

[0155] A fourteenth execution unit is configured to execute the step of obtaining the position information of the air outlet and the coordinate information of the food at any position of the food in the refrigeration chamber if the distance between the food 5 and the damper assembly 6 is greater than a preset distance;

[0156] The fifteenth execution unit is used to control the information prompt device to display the obstruction prompt information of the damper assembly 6 if the distance between the food 5 and the damper assembly 6 is less than the preset distance.

[0157] On the other hand, the present invention also protects a computer-readable storage medium, which stores at least one instruction or at least one program, and the at least one instruction or at least one program is loaded and executed by a processor to implement the above refrigerator temperature control method.

[0158] The computer program product may include a storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present application.

[0159] Storage medium can be the tangible device that can keep and store the instruction used by instruction execution device.Storage medium is not limited to electric storage device, magnetic storage device, optical storage device, electromagnetic storage device, semiconductor storage device or above-mentioned any suitable combination.The more specific example (non-exhaustive list) of storage medium comprises: portable computer disk, hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital versatile disk (DVD), memory stick, floppy disk, mechanical coding device, for example, punch card or the convex structure in the groove that stores instruction thereon and above-mentioned any suitable combination.Storage medium used here is not interpreted as instantaneous signal itself, such as radio wave or other free propagating electromagnetic wave, electromagnetic wave (for example, by the light pulse of fiber optic cable) that waveguide or other transmission medium propagates or the electric signal transmitted by wire.

[0160] The computer-readable program instructions described herein can be downloaded from a storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to the storage medium in each computing / processing device for storage.

[0161] The computer program instructions for performing the operations of the present application may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The computer-readable program instructions may be executed entirely on the target computer, partially on the target computer, as a separate software package, partially on the target computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the target computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, by utilizing state information of computer-readable program instructions to personalize and customize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), the electronic circuit can execute computer-readable program instructions to implement various aspects of the present application.

[0162] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine such that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, a computer-readable medium storing the instructions comprises an article of manufacture.

[0163] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0164] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device, so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the specified functions / actions.

[0165] The present invention also protects an electronic device comprising at least one processor and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the at least one processor implements the above refrigerator temperature control method by executing the instructions stored in the memory.

[0166] While various embodiments of the present application have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0167] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other.

[0168] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A refrigerator temperature control method, characterized in that: Applied to a refrigerator, the refrigerator having a refrigeration accommodating chamber, a compressor for refrigerating the refrigeration accommodating chamber, and a damper assembly provided at an air outlet in the refrigeration accommodating chamber; the method comprising: In response to the refrigerator door closing information, obtaining the position information of the air outlet and the food coordinate information of any position of the food in the refrigeration accommodating cavity; Using the food coordinate information and the position information of the air outlet as inputs of a damper assembly rotation angle calculation model, the damper assembly rotation angle calculation is performed to obtain an upper limit value of the damper assembly rotation angle; Using the upper limit of the rotation angle of the damper assembly and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs of a compressor cooling capacity calculation model, a compressor cooling capacity calculation is performed to obtain a compressor cooling capacity value, wherein the theoretical cooling capacity value is used to indicate the theoretical cooling capacity required by the refrigeration accommodating chamber; The damper assembly is controlled to rotate to the upper limit of the rotation angle, and the compressor is controlled to cool the refrigeration accommodating chamber with the compressor cooling capacity value.

2. The refrigerator temperature control method according to claim 1, characterized in that: Before the step of using the upper limit of the rotation angle of the damper assembly and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs to the compressor cooling capacity calculation model, the method includes: Obtaining a temperature difference between the food and the refrigeration chamber, a volume of the food, a temperature difference compensation coefficient, and a volume compensation coefficient; The temperature difference, the volume of the food, the temperature difference compensation coefficient and the volume compensation coefficient are used as inputs of a theoretical cooling value calculation model to perform the theoretical cooling value calculation to obtain the theoretical cooling value required in the refrigeration accommodation chamber.

3. The refrigerator temperature control method according to claim 2, characterized in that: The refrigerator further comprises a plurality of temperature detecting members, wherein the plurality of temperature detecting members are used to respectively detect temperature values ​​of a plurality of preset spaces corresponding to the plurality of temperature detecting members, wherein the volume of each of the preset spaces is a preset volume; Before the step of obtaining the temperature difference between the food and the refrigeration chamber, the volume of the food, the temperature difference compensation coefficient, and the volume compensation coefficient, the method further includes: Acquiring temperature values ​​detected by the plurality of temperature detecting members and position information of the plurality of preset spaces; determining temperature gradient information of two adjacent preset spaces according to the temperature values ​​detected by the multiple temperature detection elements and the position information of the multiple preset spaces; The temperature gradient information, the preset volume and the number of preset spaces in the refrigeration accommodating chamber are used as inputs of a food volume calculation model to perform food volume calculation to obtain the volume of the food in the refrigeration accommodating chamber.

4. The refrigerator temperature control method according to claim 3, characterized in that: Before the step of obtaining the temperature values ​​detected by the plurality of temperature detecting members and the position information of the plurality of preset spaces, the method further includes: Dividing the refrigeration accommodating cavity into a plurality of preset spaces according to the preset volume; The number of the preset spaces in the refrigeration accommodating cavity is determined according to the volume of the refrigeration accommodating cavity and the preset volume.

5. The refrigerator temperature control method according to claim 3, characterized in that: The method further comprises: A temperature gradient information calculation model is constructed between two adjacent preset spaces, wherein the temperature gradient information calculation model is constructed according to the position coordinates of the multiple preset spaces and the temperatures measured by the multiple temperature detection members corresponding to the multiple preset spaces.

6. The refrigerator temperature control method according to claim 2, characterized in that: The method further comprises: Acquiring temperature values ​​detected by multiple temperature detection components in the refrigeration accommodating chamber; determining an average temperature value of the refrigeration accommodating chamber according to the temperature values ​​detected by the multiple temperature detection elements; A temperature difference calculation model between the food and the refrigeration chamber is constructed, wherein the temperature difference calculation model is such that the temperature difference is equal to the difference between the set temperature value of the refrigeration chamber and the average temperature value of the refrigeration chamber.

7. The refrigerator temperature control method according to claim 6, characterized in that: The method further comprises: Obtaining food name information of the food in the refrigeration accommodating chamber of the refrigerator; Determining the optimal storage temperature range corresponding to each of the foods according to a preset food parameter table; wherein the preset food parameter table associates and stores the food name information with the optimal storage temperature range corresponding to the food name information; The minimum temperature value in the plurality of the optimal storage temperature ranges is selected as the set temperature value of the refrigeration accommodating chamber.

8. The refrigerator temperature control method according to any one of claims 1 to 7, characterized in that: The refrigerator further includes an information prompting device; Before the step of obtaining the position information of the air outlet and the coordinate information of the food at any position of the food in the refrigeration chamber, the method further includes: obtaining a distance between the food and the damper assembly; If the distance between the food and the damper assembly is greater than a preset distance, performing the step of acquiring position information of the air outlet and coordinate information of food at any position of the food in the refrigeration chamber; If the distance between the food and the damper assembly is less than a preset distance, the information prompt device is controlled to display obstruction prompt information of the damper assembly.

9. A refrigerator temperature control device, characterized in that: The refrigerator temperature control device is used to implement the refrigerator temperature control method according to any one of claims 1 to 8, and the device includes: a first acquiring unit, configured to acquire, in response to refrigerator door closing information, position information of the air outlet and food coordinate information of any position of the food in the refrigeration accommodating cavity; a first execution unit, configured to use the food coordinate information and the position information of the air outlet as inputs of a damper assembly rotation angle calculation model to calculate the damper assembly rotation angle and obtain an upper limit value of the damper assembly rotation angle; a second execution unit, configured to calculate the compressor cooling capacity using the upper limit of the rotation angle of the damper assembly and the theoretical cooling capacity required in the refrigeration accommodating chamber as inputs of a compressor cooling capacity calculation model, and obtain a compressor cooling capacity value, wherein the theoretical cooling capacity value is used to indicate the cooling capacity value theoretically required for the refrigeration accommodating chamber; The third execution unit is used to control the damper assembly to rotate to the upper limit of the rotation angle, and control the compressor to cool the refrigeration accommodating chamber with the compressor cooling capacity value.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores at least one instruction or at least one program, and the at least one instruction or at least one program is loaded and executed by the processor to implement the refrigerator temperature control method according to any one of claims 1 to 8.

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