Refrigeration temperature control method, refrigerator, electronic device, and storage medium

Abstract

The present application relates to the technical field of refrigeration equipment, and provides a refrigeration temperature control method, a refrigerator, an electronic device, a storage medium and a computer program product, the refrigeration temperature control method comprising: acquiring the temperature of a freezing compartment and the outlet air temperature of an evaporator; and controlling the opening degree of a refrigeration air door according to the difference between the temperature of the freezing compartment and the outlet air temperature of the evaporator. The present application avoids the freezing compartment from being heated after the outlet air of the evaporator is sent into the freezing compartment, reduces the power consumption and the cold consumption proportion, and can achieve the purpose of energy saving and emission reduction.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and more particularly to refrigeration temperature control methods, refrigerators, electronic devices, readable storage media, and computer program products. Background Technology

[0002] For single-system refrigerators, the cooling of the freezer and refrigerator compartments is mainly controlled by the opening and closing of the freezer damper between the freezer and refrigerator air ducts. When the freezer compartment is cooling, the freezer damper is closed, and the return air drawn in from the freezer compartment is sent into the freezer compartment after heat exchange in the evaporator. When the refrigerator compartment is cooling, the freezer damper is open, and the return air drawn in from the refrigerator and freezer compartments mixes and is cooled in the evaporator area. Then, part of it is sent to the freezer compartment and the other part is sent to the refrigerator compartment.

[0003] Because the temperature in the refrigerator compartment is higher, the temperature of the mixed refrigeration and freezing return air is also higher, which leads to an increase in the evaporator temperature. Consequently, the outlet air temperature after heat exchange is also higher than when the refrigerator compartment is refrigerated alone. This is because the air after heat exchange is not only sent to the refrigerator compartment but also to the freezing compartment. At this point, the supply air temperature is sufficient for the refrigerator compartment's cooling, but for the freezing compartment, the higher supply air temperature will cause the temperature of the freezing compartment to rise faster during the refrigerator compartment's cooling process. This is detrimental to energy consumption during the cooling phase.

[0004] The solution adopted by the refrigerator industry is to add a damper structure to the air outlet of the freezer air duct. When the refrigerator compartment is cooling, this damper structure closes, reducing the intake of freezer return air and mitigating the problem of increased temperature rise in the freezer compartment caused by the intake of refrigerated return air passing through the evaporator and having higher heat exchange levels. However, this solution inevitably increases the structure and cost, the space occupied by the damper structure, and the noise generated when the damper structure operates. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a refrigeration temperature control method, which can be used to prevent the freezer compartment from heating up after the evaporator's exhaust air is sent into the freezer compartment, thereby reducing power consumption and the proportion of cooling loss, and achieving the purpose of energy saving and emission reduction.

[0006] The present invention also proposes a refrigerator.

[0007] The present invention also proposes an electronic device.

[0008] The present invention also proposes a non-transitory computer-readable storage medium.

[0009] The present invention also proposes a computer product.

[0010] A refrigeration temperature control method according to a first aspect of the present invention includes:

[0011] Obtain the temperature of the freezer compartment and the outlet air temperature of the evaporator;

[0012] The opening degree of the refrigeration damper is controlled based on the temperature difference between the freezer compartment and the evaporator outlet air temperature.

[0013] The refrigeration temperature control method in this embodiment effectively controls the temperature of the cold air after heat exchange with the evaporator during the refrigeration process by detecting the outlet air temperature of the evaporator and judging the difference between the outlet air temperature and the temperature of the freezer compartment. This controls the temperature of the cold air entering the freezer compartment, thereby adjusting the temperature of the freezer compartment. On the one hand, it avoids the freezer compartment from heating up after the outlet air from the evaporator is sent into the freezer compartment, reducing power consumption and the proportion of cooling loss, thus achieving the purpose of energy saving and emission reduction. On the other hand, it also ensures that the refrigeration compartment can reach the refrigeration temperature, thereby improving the preservation effect.

[0014] According to one embodiment of the present invention, the step of controlling the opening degree of the refrigerator air damper based on the difference between the temperature of the freezer compartment and the outlet air temperature of the evaporator includes:

[0015] Ensure that the temperature difference between the freezer compartment and the evaporator outlet air temperature is greater than the preset temperature value;

[0016] Keep the refrigeration damper open until the refrigeration in the refrigerated compartment stops, then close the refrigeration damper.

[0017] According to one embodiment of the present invention, the step of controlling the opening degree of the refrigerator air damper based on the difference between the temperature of the freezer compartment and the outlet air temperature of the evaporator further includes:

[0018] Ensure that the temperature difference between the freezer compartment and the evaporator outlet air temperature is less than or equal to the preset temperature value;

[0019] The opening of the refrigeration damper is reduced by the first preset angle.

[0020] According to one embodiment of the present invention, after the step of reducing the opening angle of the refrigeration damper by a preset angle, the method further includes:

[0021] After running for the first preset time, return to the step of obtaining the temperature of the freezer compartment and the outlet air temperature of the evaporator.

[0022] According to one embodiment of the present invention, the first preset angle is 5 to 25°.

[0023] According to one embodiment of the present invention, the step of obtaining the temperature of the freezer compartment and the outlet air temperature of the evaporator further includes:

[0024] It has been determined that the cold storage room requires refrigeration;

[0025] The refrigeration damper is opened to the second preset angle and the second preset time is run.

[0026] According to one embodiment of the present invention, the step of obtaining the temperature of the freezer compartment and the outlet air temperature of the evaporator further includes:

[0027] It has been determined that the cold storage compartment does not require refrigeration;

[0028] The refrigerator door is closed.

[0029] According to one embodiment of the present invention, the temperature difference between the freezer compartment and the outlet air temperature of the evaporator is 2 to 5°C.

[0030] According to a second aspect of the present invention, a refrigerator, applied to the above-described refrigeration temperature control method, includes:

[0031] The cabinet contains a refrigerator compartment and a freezer compartment, with the refrigerator compartment connected to the freezer compartment via an air duct; a first temperature sensor is installed inside the freezer compartment.

[0032] An evaporator is provided in the air duct of the freezer compartment, and the evaporator is equipped with a second temperature sensor.

[0033] A refrigerated air damper is located in the air duct between the refrigerated compartment and the frozen compartment.

[0034] An electronic device according to a third aspect of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the refrigeration temperature control method as described above.

[0035] According to a fourth aspect of the present invention, a non-transitory computer-readable storage medium is provided thereon storing a computer program that, when executed by a processor, implements the steps of the refrigeration temperature control method as described above.

[0036] A computer program product according to a fifth aspect of the present invention includes a computer program that, when executed by a processor, implements the steps of the refrigeration temperature control method as described above.

[0037] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0038] An embodiment of the present invention provides a method for controlling the temperature of a refrigerator compartment. When the refrigerator is in a stable compressor operation phase of the refrigeration system, during the cooling of the freezer compartment, the refrigerator damper is closed, and the refrigeration fan is turned on to draw air from the freezer compartment's return air inlet into the air duct, where it exchanges heat with the evaporator. The cooled air is then sent back into the freezer compartment, thereby achieving cooling of the freezer compartment. During the cooling of the refrigerator compartment, the refrigerator damper is open, and the refrigeration fan is turned on to draw both freezer and refrigerator compartment return air into the air duct, where they exchange heat with the evaporator. The cooled air is then sent back into the refrigerator compartment and freezer compartment respectively, thereby achieving cooling of the refrigerator compartment.

[0039] By detecting the outlet air temperature of the evaporator and judging the difference between it and the temperature of the freezer compartment, the temperature of the cold air after heat exchange with the evaporator during the refrigeration process of the refrigerator compartment can be effectively controlled. In other words, the temperature of the cold air entering the freezer compartment can be controlled, thereby adjusting the temperature of the freezer compartment. On the one hand, this avoids the freezer compartment from heating up after the outlet air from the evaporator is sent into the freezer compartment, reducing power consumption and the proportion of cooling loss, thus achieving the purpose of energy saving and emission reduction. On the other hand, it also ensures that the refrigerator compartment can reach the refrigeration temperature, thereby improving the preservation effect.

[0040] Compared to using a separate damper structure, the refrigeration temperature control method in this embodiment compares the evaporator's outlet air temperature with the freezer compartment temperature to adjust the refrigeration return air volume by controlling the opening angle of the refrigeration damper. In a single-system refrigerator, when the refrigerator compartment is cooling, this ensures that the evaporator and the air temperature after heat exchange are lower than the freezer compartment temperature. This prevents the air temperature delivered to the freezer compartment from exceeding the freezer compartment temperature during refrigeration, which would cause the freezer compartment temperature to rise and prevent energy saving and preservation from being achieved. Simultaneously, it also solves the problems of high cost, space occupation by the refrigeration damper structure, and noise issues associated with the added damper structure's operation.

[0041] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is one of the flowcharts illustrating the refrigeration temperature control method provided in this embodiment of the invention;

[0044] Figure 2This is a second schematic flowchart of the refrigeration temperature control method provided in this embodiment of the invention;

[0045] Figure 3 This is a schematic diagram of the structure of the refrigerator provided in an embodiment of the present invention;

[0046] Figure 4 This is a schematic diagram of the structure of the evaporator of the refrigerator provided in an embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram of the refrigeration damper opening degree 'a' in the refrigeration temperature control method provided in this embodiment of the invention.

[0048] Figure 6 This is a schematic diagram of the refrigeration damper opening degree b in the refrigeration temperature control method provided in this embodiment of the invention;

[0049] Figure 7 This is a schematic diagram of the refrigeration damper closing structure of the refrigeration temperature control method provided in this embodiment of the invention;

[0050] Figure label:

[0051] 100: Cabinet body; 110: Refrigerated compartment; 120: Freezer compartment; 121: First temperature sensor; 130: Air duct; 131: Refrigerated air damper;

[0052] 200: Evaporator; 210: Second temperature sensor;

[0053] 300: Refrigeration fan. Detailed Implementation

[0054] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0055] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0057] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] like Figure 1 , Figure 2 and Figure 3 As shown, the refrigeration temperature control method provided in this embodiment of the invention includes:

[0060] S01, obtain the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200;

[0061] S02, based on the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200, control the opening degree of the refrigeration damper 131.

[0062] In the refrigeration temperature control method of this invention, when the refrigerator is in the stable operation phase of the compressor of the refrigeration system, during the cooling of the freezer compartment 120, the refrigeration damper 131 is closed, and the refrigeration fan 300 is turned on to draw the return air from the freezer compartment 120 into the air duct 130, where it exchanges heat with the evaporator 200. The cooled air is then sent back into the freezer compartment 120, thereby achieving cooling of the freezer compartment 120. During the cooling of the refrigerator compartment 110, the refrigeration damper 131 is opened, and the refrigeration fan 300 is turned on to draw both the return air from the freezer compartment 120 and the return air from the refrigerator compartment 110 into the air duct 130, where they exchange heat with the evaporator 200. The cooled air is then sent back into the refrigerator compartment 110 and the freezer compartment 120 respectively, thereby achieving cooling of the refrigerator compartment 110.

[0063] When the refrigerator compartment 110 is cooling, the refrigerator air damper 131 is open. The system monitors the temperature of the air outlet after the refrigeration return air and freezer return air have mixed and exchanged heat with the evaporator 200, and compares this with the temperature inside the freezer compartment 120. Based on the temperature difference between the freezer compartment 120 and the evaporator 200's outlet temperature, the opening of the refrigerator air damper 131 is controlled, thus adjusting the area of ​​the air outlet supplying air to the refrigerator compartment 110, thereby controlling the amount of cold air entering the refrigerator compartment 110. The air volume is controlled because the supply air volume corresponds to the return air volume. That is, if the air volume entering the cold storage compartment 110 increases, the return air volume of the cold storage compartment 110 will also increase accordingly, and if the air volume entering the cold storage compartment 110 decreases, the return air volume of the cold storage compartment 110 will also decrease accordingly. By controlling the air volume of cold air entering the cold storage compartment 110, the air volume of the cold storage return air and the evaporator 200 for heat exchange is also controlled, which in turn affects the outlet air temperature of the evaporator 200.

[0064] By detecting the outlet air temperature of the evaporator 200 and judging the difference between it and the temperature of the freezer compartment 120, the temperature of the cold air after heat exchange with the evaporator 200 during the refrigeration process of the refrigerator compartment 110 can be effectively controlled. That is, the temperature of the cold air entering the freezer compartment 120 can be controlled, thereby adjusting the temperature of the freezer compartment 120. On the one hand, this avoids the freezer compartment 120 from heating up after the outlet air of the evaporator 200 is sent into the freezer compartment 120, reducing power consumption and the proportion of cooling loss, which can achieve the purpose of energy saving and emission reduction. On the other hand, it also ensures that the refrigerator compartment 110 can reach the refrigeration temperature, thereby improving the preservation effect.

[0065] Compared to using a separate damper structure, the refrigeration temperature control method in this embodiment compares the outlet air temperature of the evaporator 200 with the temperature of the freezer compartment 120 to determine the airflow of the refrigeration return air by controlling the opening angle of the refrigeration damper 131. When the refrigerator compartment 110 of a single-system refrigerator is cooling, the temperature of the air exchanged between the evaporator 200 and the freezer compartment 120 is kept lower than the temperature of the freezer compartment 120. This prevents the air temperature delivered to the freezer compartment 120 from exceeding the temperature of the freezer compartment 120 during the cooling process of the refrigerator compartment 110, which would cause the freezer compartment 120 to overheat and fail to achieve energy saving and preservation goals. Simultaneously, it also solves the problems of high cost, space occupation by the refrigeration damper 131 structure, and noise issues during damper operation.

[0066] In one embodiment, the judgment requirement provided by the difference between the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200 can be selected according to actual needs. The judgment requirement can be greater than a certain preset temperature value, less than a certain preset temperature value, or within a certain preset temperature range.

[0067] According to one embodiment of the present invention, the step of controlling the opening degree of the refrigerator air damper 131 based on the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 includes:

[0068] The temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 is determined to be greater than the preset temperature value;

[0069] Keep the refrigeration damper 131 open until the refrigeration of the refrigeration compartment 110 ends, then close the refrigeration damper 131.

[0070] In this embodiment, the refrigeration damper 131 is opened to the current opening degree to obtain the temperature of the freezer compartment 120 and the air outlet temperature of the evaporator 200. When the difference between the temperature of the freezer compartment 120 and the air outlet temperature of the evaporator 200 is greater than the preset temperature value, that is, when the air outlet temperature of the evaporator 200 is lower than the temperature of the freezer compartment 120 by a certain range, it is determined that the air outlet temperature of the evaporator 200 has reached the requirement. After the cold air enters the freezer compartment 120, it will not cause the temperature of the freezer compartment 120 to rise. The current opening degree of the refrigeration damper 131 can be maintained to continue the refrigeration operation of the freezer compartment 110 until the temperature of the freezer compartment 110 reaches the refrigeration requirement. After the refrigeration ends, the refrigeration damper 131 is closed.

[0071] According to one embodiment of the present invention, the step of controlling the opening degree of the refrigerator air damper 131 based on the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 further includes:

[0072] Ensure that the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 is less than or equal to the preset temperature value;

[0073] The opening of the refrigeration damper 131 is reduced by a first preset angle.

[0074] In this embodiment, the refrigeration damper 131 is opened to its current opening degree to obtain the temperature of the freezer compartment 120 and the air outlet temperature of the evaporator 200. When the difference between the temperature of the freezer compartment 120 and the air outlet temperature of the evaporator 200 is less than or equal to a preset temperature value, that is, when the air outlet temperature of the evaporator 200 is higher than the temperature of the freezer compartment 120, or when it has not reached a certain required range below the temperature of the freezer compartment 120, it is determined that the air outlet temperature of the evaporator 200 has not met the requirements. If the current opening degree of the refrigeration damper 131 is maintained and the refrigeration operation of the freezer compartment 110 continues, the cold air entering the freezer compartment 120 will cause the temperature of the freezer compartment 120 to rise.

[0075] Therefore, by reducing the current opening of the refrigeration damper 131 by the first preset angle, that is, reducing the amount of air from the evaporator 200 into the refrigeration compartment 110, the amount of high-temperature refrigeration return air is reduced. The impact of the refrigeration return air on the heating of the evaporator 200 is reduced, and the outlet air temperature after heat exchange of the evaporator 200 is correspondingly lowered. The temperature of the cold air entering the freezer compartment 120 is also relatively lower, thus preventing the freezer compartment 120 from heating up after the outlet air from the evaporator 200 is sent into it. This reduces power consumption and the proportion of cooling loss, thereby achieving the purpose of energy saving and emission reduction.

[0076] According to one embodiment of the present invention, after the step of reducing the opening angle of the refrigeration damper 131 by a preset angle, the method further includes:

[0077] After running for the first preset time, return to the steps of obtaining the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200.

[0078] In this embodiment, after the current opening of the refrigerator air damper 131 decreases by a first preset angle, the opening of the refrigerator air damper 131 and the operation of the refrigeration fan 300 are maintained for a first preset time. Then, the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200 are acquired again. Based on the difference between the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200, the opening of the refrigerator air damper 131 is controlled. After each change in the opening of the refrigerator air damper 131, it needs to be maintained for a period of time to ensure the stable operation of the refrigerator refrigeration system. After the compartment temperature and the outlet air temperature of the evaporator 200 reach stability, the temperature is detected and adjusted again to make the acquired temperature values ​​more accurate, reduce detection errors, and facilitate subsequent control of the opening of the refrigerator air damper 131.

[0079] like Figure 5 , Figure 6 and Figure 7As shown, in this embodiment, when the refrigerator compartment 110 is cooling, the initial opening angle of the refrigerator damper 131 is 'a'. After a reduction in opening angle, the current opening angle of the refrigerator damper 131 is 'b'. The refrigerator damper 131 operates at this opening angle 'b' for a first preset time 't1'. Then, the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200 are acquired again. Based on the difference between the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200, the opening angle of the refrigerator damper 131 is controlled. This cycle is repeated until it is determined that the difference between the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200 is greater than a preset temperature value. The opening angle of the refrigerator damper 131 is maintained until the cooling of the refrigerator compartment 110 ends, at which point the refrigerator damper 131 is closed. In this embodiment, the value of 't1' ranges from 3 to 5 minutes.

[0080] According to one embodiment of the present invention, the first preset angle is 5 to 25°.

[0081] The opening angle of the refrigeration damper 131 can be reduced from 5 to 25°. In this embodiment, 15° can be selected. When the refrigeration compartment 110 is cooling, the initial opening angle of the refrigeration damper 131 is a, where 75°≤a≤90°. After one reduction in opening angle, the current opening angle of the refrigeration damper 131 is b, where 60°≤b<75°. After maintaining the opening angle b for a first preset time, it is determined whether the temperature of the cold air that has undergone heat exchange through the evaporator 200, detected by the air outlet sensor of the evaporator 200, is lower than a certain preset temperature of the freezer compartment 120. If this condition is met, the opening angle b is maintained. Run until the refrigeration of the cold compartment 110 is completed, and close the refrigeration damper 131 to an opening of 0°. If this condition is not met, adjust the angle of the refrigeration damper 131 to c again, where 45°≤c<60°. After running for a first preset time with the opening at c, determine whether the temperature of the cold air that has undergone heat exchange through the evaporator 200, detected by the air outlet sensor of the evaporator 200, is lower than a certain preset temperature of the freezer compartment 120. Repeat the above steps to adjust the opening of the refrigeration damper 131 until the judgment condition is met.

[0082] In other embodiments, the angle at which the refrigeration damper 131 reduces its opening can be the same or different each time, that is, it can be within the first preset temperature requirement range.

[0083] According to one embodiment of the present invention, the step of obtaining the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200 further includes:

[0084] It has been determined that cold storage room 110 requires refrigeration;

[0085] The refrigeration damper 131 is opened to the second preset angle and runs for the second preset time.

[0086] In this embodiment, after the refrigerator is running stably and the compressor of the refrigeration system is turned on, it is determined whether the refrigerator compartment 110 needs to enter the refrigeration stage. If so, the refrigerator damper 131 is opened to the second preset angle as the initial opening. At the same time, the refrigeration fan 300 is running, so that the refrigerator return air and the refrigeration return air mix in the air duct 130 part where the evaporator 200 is located. After the evaporator 200 heats and exchanges heat to form cold air, the cold air is sent back to the freezer compartment 120 and the refrigerator compartment 110. The refrigerator damper 131 is kept open at the second preset angle and runs for a second preset time t2, that is, after the air supply of the evaporator 200 is stable and the temperature of the freezer compartment 120 is stable, the air supply temperature of the evaporator 200 and the temperature of the freezer compartment 120 are obtained. It is determined whether the air supply temperature of the evaporator 200 and the temperature of the freezer compartment 120 are lower than a certain temperature range. Then, the subsequent step of adjusting the opening size of the refrigerator damper 131 is performed.

[0087] In this embodiment, the value of t2 ranges from 3 to 5 minutes. The second preset angle, as the initial opening, can be 75 to 90°.

[0088] According to one embodiment of the present invention, the step of obtaining the temperature of the freezer compartment 120 and the outlet air temperature of the evaporator 200 further includes:

[0089] It has been determined that cold storage compartment 110 does not require refrigeration;

[0090] Refrigeration damper 131 is closed.

[0091] In this embodiment, after the refrigerator is running stably and the compressor of the refrigeration system is turned on, it is determined whether the refrigerator compartment 110 needs to enter the refrigeration stage. If not, the refrigerator damper 131 remains closed and the refrigeration fan 300 runs to ensure the refrigeration and heat exchange of the freezer compartment 120 until the refrigeration of the freezer compartment 120 ends and all compartments reach the stop point.

[0092] According to one embodiment of the present invention, the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 is 2 to 5°C.

[0093] In this embodiment, when the refrigerator compartment 110 is cooling, the temperature of the freezer compartment 120 needs to be higher than the outlet air temperature of the evaporator 200. This ensures that the air supplied from the evaporator 200 to the refrigerator compartment 110 and the freezer compartment 120 is not too cold, which could cause frost damage to the stored items. Therefore, the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 should not be too large, and should be maintained between 2 and 5°C. Specifically, when the temperature difference between the freezer compartment 120 and the outlet air temperature of the evaporator 200 is greater than a preset temperature value, this preset temperature value can be between 1 and 6°C. That is, if the temperature T1 of the freezer compartment 120 is -20°C, then the outlet air temperature T2 of the evaporator 200 should be in the range of -22 to -25°C to meet the air supply temperature requirements for the freezer compartment 120 and the refrigerator compartment 110 during the cooling process of the refrigerator compartment 110.

[0094] like Figure 3 and Figure 4 As shown, a refrigerator according to a second aspect embodiment of the present invention, applied to the refrigeration temperature control method of the above embodiment, includes...

[0095] The cabinet 100 has a refrigerator compartment 110 and a freezer compartment 120 inside. The refrigerator compartment 110 is connected to the freezer compartment 120 through an air duct 130. The freezer compartment 120 is equipped with a first temperature sensor 121.

[0096] Evaporator 200 is installed in the air duct 130 of the freezer compartment 120, and evaporator 200 is equipped with a second temperature sensor 210;

[0097] The refrigeration air damper 131 is located in the air duct 130 between the refrigeration compartment 110 and the freezer compartment 120.

[0098] The damper can be used in three states: fully open, fully closed, and open to a certain angle a0, where 0° < a0 < 90°. These correspond to the maximum, minimum, and adjustable air volume delivered to the refrigerator.

[0099] The refrigerator of this embodiment can execute the refrigeration temperature control method provided in this embodiment. The refrigerator has a refrigeration compartment 110 in the upper part and a freezer compartment 120 in the lower part, separated by a beam. An air duct 130 is provided on the inner wall of the refrigeration compartment 110, and an air duct 130 is also provided on the inner wall of the freezer compartment 120. The two air ducts 130 are connected. The freezer compartment 120 is divided into a rear evaporator 200 compartment and a front freezer storage compartment by a rear freezer air duct. A freezer fan 300 is also installed within the freezer air duct. The refrigeration compartment 110 consists of the front freezer storage compartment and the rear freezer air duct. A second temperature sensor 210 is arranged on the pipe between the evaporator 200 body and the refrigeration fan 300. The second temperature sensor 210 can also be used as a defrost sensor to obtain the outlet air temperature of the evaporator 200. A first temperature sensor 121 is installed in the freezer storage compartment of the freezer compartment 120 to obtain the temperature of the freezer compartment 120.

[0100] In this embodiment, a refrigeration air door 131 is provided in the middle of the air duct 130 to separate the refrigeration compartment 110 and the freezer compartment 120. After the refrigeration fan is started, the refrigeration return air enters unidirectionally in this air duct 130 through the refrigeration air door 131.

[0101] The electronic device provided in this embodiment of the invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the refrigeration temperature control method as described in the above embodiment.

[0102] The non-transitory computer-readable storage medium provided in this embodiment of the invention stores a computer program thereon, which, when executed by a processor, implements the steps of the refrigeration temperature control method as described in the above embodiment.

[0103] The computer program product provided in this embodiment of the invention includes a computer program that, when executed by a processor, implements the steps of the refrigeration temperature control method as described in the above embodiment.

[0104] The electronic device of this invention includes a processor, a communication interface, a memory, and a communication bus. The processor, communication interface, and memory communicate with each other via the communication bus. The processor can call logical instructions stored in the memory to execute the refrigeration temperature control method described in the above embodiment.

[0105] Furthermore, when the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0106] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0107] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0108] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A method for controlling refrigeration temperature, characterized in that, include: Obtain the temperature of the freezer compartment and the outlet air temperature of the evaporator; Based on the temperature difference between the freezer compartment and the evaporator outlet air temperature, the opening of the refrigerator air damper is controlled to regulate the airflow of the refrigerator return air. When the refrigerator compartment of a single-system refrigerator is cooling, the air temperature after heat exchange with the evaporator is lower than the temperature of the freezer compartment. When the refrigerator compartment is cooling, the refrigerator air damper is open, and the refrigeration fan is turned on to draw both the freezer and refrigerator return air into the air duct, where they exchange heat with the evaporator. The cooled air is then sent back to the refrigerator and freezer compartments respectively, thus achieving the cooling of the refrigerator compartment.

2. The refrigeration temperature control method according to claim 1, characterized in that, The step of controlling the opening of the refrigerator air damper based on the temperature difference between the freezer compartment and the evaporator outlet air temperature includes: Ensure that the temperature difference between the freezer compartment and the evaporator outlet air temperature is greater than the preset temperature value; Keep the refrigeration damper open until the refrigeration in the refrigerated compartment stops, then close the refrigeration damper.

3. The refrigeration temperature control method according to claim 1, characterized in that, The step of controlling the opening of the refrigerator air damper based on the temperature difference between the freezer compartment and the evaporator outlet air temperature further includes: Ensure that the temperature difference between the freezer compartment and the evaporator outlet air temperature is less than or equal to the preset temperature value; The opening of the refrigeration damper is reduced by the first preset angle.

4. The refrigeration temperature control method according to claim 3, characterized in that, The step of reducing the opening of the refrigeration damper by a first preset angle also includes: After running for the first preset time, return to the step of obtaining the temperature of the freezer compartment and the outlet air temperature of the evaporator.

5. The refrigeration temperature control method according to claim 3, characterized in that, The first preset angle is 5~25°.

6. The refrigeration temperature control method according to claim 2, characterized in that, Before the step of obtaining the temperature of the freezer compartment and the outlet air temperature of the evaporator, the following also includes: It has been determined that the cold storage room requires refrigeration; The refrigeration damper is opened to the second preset angle and the second preset time is run.

7. The refrigeration temperature control method according to claim 2, characterized in that, Before the step of obtaining the temperature of the freezer compartment and the outlet air temperature of the evaporator, the following also includes: It has been determined that the cold storage compartment does not require refrigeration; The refrigerator door is closed.

8. The refrigeration temperature control method according to any one of claims 1 to 7, characterized in that, The temperature difference between the freezer compartment and the evaporator outlet temperature is 2~5℃.

9. A refrigerator, characterized in that, The refrigeration temperature control method according to any one of claims 1 to 8 includes: The cabinet contains a refrigerator compartment and a freezer compartment, with the refrigerator compartment connected to the freezer compartment via an air duct; a first temperature sensor is installed inside the freezer compartment. An evaporator is provided in the air duct of the freezer compartment, and the evaporator is equipped with a second temperature sensor. A refrigerated air damper is located in the air duct between the refrigerated compartment and the frozen compartment.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the program, it implements the steps of the refrigeration temperature control method as described in any one of claims 1 to 8.

11. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the refrigeration temperature control method as described in any one of claims 1 to 8.

12. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the refrigeration temperature control method as described in any one of claims 1 to 8.

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