Control method of refrigerator, storage medium, and refrigerator
By adjusting the opening angle of the refrigerator air vent and controlling the compressor, the problem of inconsistent cooling cycles between the refrigerator and freezer compartments was solved, achieving energy consumption optimization and temperature stability, and improving the refrigerator's energy efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TCL HOME APPLIANCES (HEFEI) CO LTD
- Filing Date
- 2023-09-28
- Publication Date
- 2026-05-12
AI Technical Summary
The cooling cycles of existing refrigerators are inconsistent between the refrigerator compartment and the freezer compartment, resulting in increased energy consumption and large temperature fluctuations, making it difficult to optimize the compressor's running time to improve energy efficiency.
By controlling the opening angle of the refrigerator air damper and the start-up of the compressor, combined with temperature sensor monitoring, the opening angle of the refrigerator air damper is adjusted to match the cooling cycle of the freezer and refrigerator compartments, ensuring that the cooling time of the refrigerator compartment is close to that of the freezer compartment, thus optimizing energy consumption.
It achieves synchronization of the cooling cycles of the refrigerator and freezer compartments, reduces the refrigerator's energy consumption, minimizes temperature fluctuations in the refrigerator compartment, and improves energy efficiency.
Smart Images
Figure CN117308502B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of refrigerator technology, and particularly relates to a refrigerator control method, storage medium and refrigerator. Background Technology
[0002] Experiments revealed that energy consumption results were better when the refrigerator's cooling cycle for both the refrigerator and freezer compartments was 1:1, and both compartments started cooling simultaneously. Furthermore, longer compressor operation resulted in even better energy consumption, as the compressor re-establishes system balance each time it starts, wasting more power in the initial period. To extend compressor operation time, reducing compressor speed is the primary optimization strategy. However, at a 1:1 cycle, the limited temperature fluctuations in the refrigerator compartment often result in a shorter on-off cycle, prematurely restricting further reductions in compressor speed. Summary of the Invention
[0003] This application provides a refrigerator control method, storage medium, and refrigerator, which can solve the problem of how to ensure that the cooling cycle of the refrigerator compartment and the cooling cycle of the freezer compartment are as consistent as possible, so as to improve the energy efficiency of the refrigerator.
[0004] To achieve the above objectives, this application provides the following technical solution:
[0005] A method for controlling a refrigerator, comprising:
[0006] When the temperature of the freezer compartment of the refrigerator rises to the first preset temperature, the refrigerator's refrigeration door is opened at a first angle, and the refrigerator's compressor is started to cool the freezer compartment and the refrigerator's refrigeration compartment.
[0007] When the temperature of the refrigerator compartment drops to the second preset temperature, the refrigerator air damper is closed to cool the freezer compartment separately.
[0008] Obtain the first temperature of the freezer compartment when the refrigeration damper is closed;
[0009] The first angle is corrected and stored based on the first temperature so that the refrigeration door will open at the corrected first angle the next time.
[0010] In some embodiments, correcting the first angle based on the first temperature includes:
[0011] If the first temperature is greater than or equal to the third preset temperature, then the first angle is reduced and the reduced first angle is used as the corrected first angle;
[0012] If the first temperature is less than the third preset temperature, then the first angle is increased or maintained, and the increased or maintained first angle is used as the corrected first angle.
[0013] In some embodiments, using the reduced first angle as the corrected first angle includes:
[0014] The difference between the first angle and the pre-stored first preset angle is used as the corrected first angle.
[0015] In some embodiments, using the reduced first angle as the corrected first angle includes:
[0016] Determine a first temperature difference value between the first temperature and the third preset temperature;
[0017] A first correction angle is calculated based on the first temperature difference value, and the first correction angle is proportional to the first temperature difference value.
[0018] The difference between the first angle and the first corrected angle is taken as the corrected first angle.
[0019] In some embodiments, if the first temperature is less than a third preset temperature, increasing or maintaining the first angle and using the increased or maintained first angle as the corrected first angle includes:
[0020] If the first temperature is less than or equal to the fourth preset temperature, then the first angle is increased and the increased first angle is used as the corrected first angle;
[0021] If the first temperature is less than the third preset temperature but greater than the fourth preset temperature, then the first angle is maintained and the maintained first angle is used as the corrected first angle, wherein the fourth preset temperature is less than the third preset temperature.
[0022] In some embodiments, using the increased first angle as the corrected first angle includes:
[0023] The angle obtained by summing the first angle and the pre-stored second preset angle is used as the corrected first angle.
[0024] In some embodiments, using the increased first angle as the corrected first angle includes:
[0025] Obtain the second temperature difference value between the first temperature and the fourth preset temperature;
[0026] The second correction angle is calculated based on the second temperature difference value, and the second correction angle is proportional to the second temperature difference value.
[0027] The angle obtained by summing the first angle and the second corrected angle is taken as the corrected first angle.
[0028] In some embodiments, the control method further includes:
[0029] Monitor the actual temperature of the refrigerator compartment;
[0030] If the actual temperature of the refrigerator compartment rises to the fifth preset temperature, the refrigerator's refrigeration damper is opened to the preset maximum angle, and the compressor is started to cool the freezer and refrigerator compartments.
[0031] A refrigerator storage medium storing a computer program, wherein the computer program executes the above-described refrigerator control method when it is run.
[0032] A refrigerator, comprising:
[0033] The freezer compartment is equipped with a first temperature sensor;
[0034] The refrigerator compartment is equipped with a second temperature sensor;
[0035] Refrigeration air door;
[0036] compressor;
[0037] The controller, connected to the first temperature sensor, the second temperature sensor, the refrigeration damper, and the compressor, is used for:
[0038] When the temperature of the freezer compartment rises to the first preset temperature, the refrigerator air damper is controlled to open at a first angle, and the compressor is controlled to start, so as to cool down the freezer compartment and the refrigerator compartment.
[0039] When the temperature of the refrigerator compartment drops to the second preset temperature, the refrigerator air damper is closed to cool the freezer compartment separately.
[0040] Obtain the first temperature of the freezer compartment when the refrigeration damper is closed;
[0041] The first angle is corrected and stored based on the first temperature, so that the refrigeration door will open at the corrected first angle the next time.
[0042] The refrigerator control method, storage medium, and refrigerator provided in this application embodiment determine the cooling duration of the refrigerator compartment by adjusting the opening angle of the refrigerator door. A first temperature indicates whether the freezer compartment is also close to the shutdown temperature when the refrigerator door is closed, thus reflecting whether the cooling duration of the refrigerator compartment and the freezer compartment are similar. Therefore, by correcting the first angle based on the first temperature, the amount of cold air entering the refrigerator compartment is appropriate when the refrigerator door opens at the corrected angle the next time, ensuring that the freezer compartment is about to reach the shutdown temperature when the refrigerator door closes. This makes the cooling duration of the refrigerator compartment close to that of the freezer compartment, reducing refrigerator energy consumption. Furthermore, in the refrigerator control method of this application, since the freezer compartment temperature is also close to the shutdown point after the refrigerator door is closed, the time for the freezer compartment to cool alone is shortened, thus shortening the time for the refrigerator compartment to stop cooling and reducing the degree of temperature recovery, which is beneficial for controlling the temperature fluctuation range of the refrigerator compartment. Attached Figure Description
[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.
[0044] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.
[0045] Figure 1 A flowchart of a refrigerator refrigeration method provided in an embodiment of this application.
[0046] Figure 2 This is a first flowchart of a refrigerator control method provided in an embodiment of this application.
[0047] Figure 3 This is a second flowchart of a refrigerator control method provided in an embodiment of this application.
[0048] Figure 4 This is a first flowchart of a first angle correction method provided in an embodiment of this application.
[0049] Figure 5 A second flowchart of a first angle correction method provided in an embodiment of this application.
[0050] Figure 6 This is a schematic diagram of a first structure of a refrigerator provided in an embodiment of this application.
[0051] Figure 7 This is a schematic diagram of a second structure of a refrigerator provided in an embodiment of this application.
[0052] Figure 8 This is a schematic diagram of a third structure of a refrigerator provided in an embodiment of this application. Detailed Implementation
[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0054] Existing single-system, multi-temperature-controlled air-cooled refrigerators generally follow the following cooling rules: when the freezer temperature reaches the start-up point, the compressor and fan are turned on; when the refrigerator temperature reaches the start-up point, the fan and refrigerator damper are opened; when the refrigerator temperature reaches the stop-up point, the refrigerator damper is closed; when the freezer temperature reaches the stop-up point, and the refrigerator temperature has reached the stop-up point at least once and is lower than the start-up point temperature, the compressor and fan are turned off. Understandably, under this rule, the cooling cycles of the refrigerator and freezer compartments are likely not synchronized, and the random coupling of the start-up of cooling in each compartment may result in the refrigerator's energy consumption not being at its highest. Experiments have revealed that if the refrigerator cooling starts first during the compressor stop-up phase, energy consumption can increase by about 5%. Furthermore, a slight delay in the start-up of the refrigerator cooling results in a longer compressor operating time at the same speed, further increasing energy consumption. If the refrigerator and freezer start simultaneously, the compressor's energy consumption is optimal.
[0055] To address the aforementioned problems, this application provides a refrigeration method for a refrigerator. For an example, please refer to [link to example]. Figure 1 , Figure 1 A flowchart illustrating a refrigeration method for a refrigerator provided in this application embodiment. The refrigeration method is executed, for example, by a refrigerator controller, and includes the following steps S101-S109:
[0056] Step S101: After the refrigerator is powered on, determine the temperature LC of the refrigerator compartment. c Is it greater than or equal to the refrigerator compartment's start-up temperature T? con ;
[0057] Initially, neither the refrigerator compartment nor the freezer compartment is cooling. Understandably, if the compartment is in cooling mode, the compartment temperature will gradually decrease; if the compartment is in cooling mode, the refrigerator compartment temperature may gradually increase due to ambient temperature, the door being opened, or other factors.
[0058] It should be noted that the refrigerator compartment temperature LC c A value greater than or equal to the refrigerator compartment's start-up temperature indicates that the refrigerator compartment needs to be switched on in cooling mode to lower its temperature. Correspondingly, the refrigerator compartment temperature (LC) is... cLowering the temperature to the refrigerator compartment's shutdown point means that the refrigerator compartment no longer needs to cool, and at this point, the refrigerator compartment's cooling can be turned off.
[0059] The start / stop temperature of the refrigerator compartment is calculated by the controller based on the ambient temperature and a corresponding preset formula. For example, the start-up temperature T of the refrigerator compartment... con It is 5°C higher than the temperature at which the refrigerator is turned off.
[0060] If the temperature of the refrigerator compartment is LC c The refrigerator compartment has reached its start-up temperature T. con Then proceed with step S103: Refrigerator compartment temperature LC c The refrigerator compartment's start-up temperature T has not been reached. con Then proceed with step S102.
[0061] Step S102: Determine the freezer compartment temperature LD c Is it greater than or equal to the freezer compartment start-up temperature T? don ;
[0062] Similarly, freezer temperature LD c A temperature greater than or equal to the freezer compartment's start-up temperature indicates that the freezer compartment needs to be switched on in cooling mode to lower its temperature. Correspondingly, the freezer compartment temperature LD... c Lowering the temperature to the freezer compartment's shutdown point indicates that the freezer compartment no longer needs to cool, and at this point, the freezer compartment cooling can be turned off.
[0063] If the freezer temperature LD c The freezer compartment has reached its start-up temperature T. don Then proceed with step S103: Freezer temperature LD c The freezer compartment's start-up temperature T has not been reached. don Then return to step S101 above.
[0064] That's understandable; you can also first determine the freezer compartment temperature (LD). c Then determine the temperature of the refrigerator compartment (LC). c Alternatively, both can be used to determine the temperature. If the temperature of any compartment reaches its corresponding start-up temperature, the refrigerator's cooling mode will be activated.
[0065] Step S103: Control the refrigerator compartment and freezer compartment to turn on the cooling mode;
[0066] For example, the refrigerator may also include a refrigeration system, which includes a compressor and an evaporator. The evaporator is disposed in the refrigerator's freezer duct, which communicates with the freezer compartment. A refrigerator damper is provided between the freezer duct and the refrigerator compartment. When the refrigerator damper is open, the freezer duct is connected to the refrigerator compartment. A fan may also be provided within the freezer duct. When the compressor operates, the evaporator cools the air within the freezer duct, and the refrigerator and freezer compartments cool the items inside by air convection with the freezer duct. Therefore, the refrigerator and freezer compartments can be put into refrigeration mode by controlling the compressor to start, the fan to start, and the refrigerator damper to open.
[0067] Step S104: Determine the temperature LC of the refrigerator compartment c Is it less than or equal to the refrigerator compartment shutdown temperature T? coff ;
[0068] If the temperature of the refrigerator compartment is LC c Less than or equal to the refrigerator compartment shutdown temperature T coff If the condition is met, proceed to step S105; otherwise, return to step S104.
[0069] Step S105: Control the refrigerator compartment to stop cooling;
[0070] For example, the refrigerator controller may control the refrigerator door to close, thus preventing air convection between the freezer duct and the refrigerator compartment and shutting off the cooling of the refrigerator compartment.
[0071] Step S106: Determine the freezer compartment temperature LD c Is it less than or equal to the freezer compartment shutdown temperature T? doff ;
[0072] If the freezer temperature LD c Less than or equal to the freezer compartment shutdown temperature T doff If the condition is met, proceed to step S109; otherwise, proceed to steps S107-S108.
[0073] Step S107: Determine the temperature LC of the refrigerator compartment c Is it greater than or equal to the refrigerator compartment reopening temperature T? coff ′;
[0074] Among them, the cold storage compartment reopening temperature T coff For example, temperatures higher than the refrigerator compartment's shutdown temperature T. coff And below the refrigerator compartment's start-up temperature T con For example, the refrigerator compartment reopening point temperature T coff ′Compared to the refrigerator compartment shutdown temperature T coff 4°C higher.
[0075] If the temperature of the refrigerator compartment is LCc Greater than or equal to the refrigerator compartment reopening temperature T coff If the condition is met, proceed to step S109; otherwise, return to step S106.
[0076] Step S108: Restart the refrigerator compartment cooling;
[0077] It is understood that the refrigerator cooling method provided in this application embodiment, by adding steps S107 and S108, can ensure that if the temperature of the refrigerator compartment rises too much due to reasons such as opening the door, excessive ambient temperature, or excessively long cooling time of the freezer compartment during the stage of cooling the freezer compartment alone, the cooling of the refrigerator compartment will be restarted to ensure that the temperature of the refrigerator compartment is relatively stable. It can also avoid the problem of the compressor being unable to stop and the power consumption increasing when the cooling of the freezer compartment is turned off and then restarted due to excessively high temperature of the refrigerator compartment.
[0078] Step S109: Control the freezer compartment to stop cooling.
[0079] For example, the refrigerator's controller may control the compressor and fan to stop, thereby stopping the cooling of the freezer compartment.
[0080] The refrigeration method for a refrigerator provided in this application embodiment can ensure that the refrigerator compartment and the freezer compartment are refrigerated simultaneously, thereby improving the energy consumption level of the compressor.
[0081] This application embodiment also provides a refrigerator compartment start-up temperature T. con Freezer start-up temperature T don Refrigerator compartment shutdown temperature T coff Freezer compartment shutdown temperature T doff The calculation rules and specific formulas are as follows:
[0082] Among them, T d1 The preset temperature value is related to the ambient temperature, and dh represents the freezer compartment offset parameter.
[0083] Among them, T d2 The preset temperature value is related to the ambient temperature. d8 represents the freezer temperature fluctuation control parameter, for example, 4.
[0084] Among them, T c1 The preset temperature value is related to the ambient temperature, and ch represents the refrigerator compartment offset parameter.
[0085] T con =T coff +Δh, where Δh is a preset temperature value, for example, 5.
[0086] In the above calculation formula, dh and ch can be obtained, for example, through the refrigerator's dual octave display panel. dh and ch are integers, and the control accuracy is adjusted to 0.5℃ by dividing by 2. dh and ch can correct for the effects of ambient temperature and sensor temperature deviation. The values are different for different ambient temperature ranges (see Table 1 and Table 2 below for details) to correct the consistency between the set setting and the compartment temperature.
[0087] Table 1: Reference Table for Freezer Compartment Offset Parameter dh
[0088]
[0089]
[0090] Table 2 Reference Table for Refrigerator Compartment Offset Parameter ch
[0091] ambient temperature ch Settable range ＜8℃ c1 -30～30 8-13℃ c2 -30～30 13-20℃ c3 -30～30 20-28℃ c4 -30～30 28-35℃ c5 -30～30 35-40℃ c6 -30～30 ≥40℃ c7 -30～30
[0092] Furthermore, the freezer compartment start-up temperature T don and the freezer compartment shutdown temperature T doff For example, refer to Table 3 below for calculations:
[0093] Table 3 Freezer compartment start-up temperature T don Freezer compartment shutdown temperature T doff Calculation Reference Table
[0094]
[0095]
[0096] Refrigerator compartment shutdown temperature T coff For example, refer to Table 4 below for calculations:
[0097] Table 4: Refrigerator compartment shutdown temperature (T) coff Calculation Reference Table
[0098] Setting gear Stop point 2 2+ch / 2 3 3+ch / 2 4 4+ch / 2 5 5+ch / 2 6 6+ch / 2 7 7+ch / 2 8 8+ch / 2
[0099] Based on the above-described refrigerator refrigeration method, this application also provides a refrigerator control method that can extend the refrigeration cycle of the refrigerator compartment to make it as consistent as possible with the refrigeration cycle of the freezer compartment, thereby improving the refrigerator's energy efficiency. For an example, please refer to... Figure 2 , Figure 2 A first flowchart of a refrigerator control method provided in an embodiment of this application. The refrigerator control method is executed, for example, by the refrigerator's controller, and includes the following steps S201-S204:
[0100] Step S201: When the temperature of the freezer compartment of the refrigerator rises to the first preset temperature, control the refrigerator's cold air door to open at the first angle, and control the refrigerator's compressor to start, so as to cool down the freezer compartment and the refrigerator's cold air compartment.
[0101] It should be noted that the first preset temperature is the freezer compartment's start-up temperature T. don The first angle is, for example, an initial first angle or a corrected first angle. For example, when the refrigerator is first powered on or after defrosting, the controller receives the first command to open the refrigerator door, obtains the initial first angle, and controls the refrigerator door to open according to the initial first angle. Subsequently, the refrigerator door opens according to the corrected first angle. Here, the initial first angle is a preset value, for example, 90°.
[0102] Understandably, the opening angle of the refrigerator air damper determines the airflow between the refrigerator compartment and the freezer duct per unit time, thus determining the refrigeration efficiency of the refrigerator compartment. Given a fixed compressor frequency, a larger opening angle of the refrigerator air damper results in faster cooling and a shorter cooling time in the refrigerator compartment; conversely, a smaller opening angle results in slower cooling and a longer cooling time. However, if the opening angle is too small, the temperature inside the refrigerator compartment may not decrease or may even rise. Therefore, by controlling the opening angle of the refrigerator air damper, the cooling time of the refrigerator compartment can be controlled.
[0103] In the initial state, the refrigerator compressor is off, the refrigerator door is closed, and neither the refrigerator compartment nor the freezer compartment is cooling. Therefore, the freezer compartment may gradually warm up.
[0104] Step S202: When the temperature of the refrigerator compartment drops to the second preset temperature, control the refrigerator air damper to close so that the freezer compartment can be cooled separately;
[0105] It should be noted that the second preset temperature is the refrigerator compartment shutdown temperature T. coff When the refrigerator door is closed, the refrigerator compartment is separated from the freezer air duct and cannot circulate air with it, meaning the refrigerator compartment stops cooling.
[0106] Step S203: Obtain the first temperature of the freezer compartment when the refrigerator door is closed;
[0107] The first temperature refers to the actual temperature of the freezer compartment when the refrigerator door is closed, for example, as measured by a temperature sensor. This first temperature reflects whether the cooling time of the refrigerator compartment is close to that of the freezer compartment. If the first temperature in the freezer compartment is close to the freezer compartment's shutdown temperature when the refrigerator door is closed, it indicates that the cooling time of the refrigerator compartment is similar to that of the freezer compartment, which helps reduce the refrigerator's energy consumption. If the first temperature in the freezer compartment is too high when the refrigerator door is closed, it indicates that the refrigerator door opening angle is too large, resulting in excessive cooling capacity being distributed to the refrigerator compartment, leading to a shorter cooling time. Conversely, if the first temperature in the freezer compartment is too low when the refrigerator door is closed, it indicates that the refrigerator door opening angle is too small, resulting in insufficient cooling capacity being distributed to the refrigerator compartment, leading to a longer cooling time. In this case, the freezer compartment may have already reached the shutdown temperature, but because the refrigerator compartment has not yet reached the shutdown temperature, the compressor has not stopped, resulting in a larger actual temperature difference between the start and stop of the freezer compartment, which is detrimental to the control of temperature fluctuations in the freezer compartment.
[0108] Step S204: Correct and store the first angle according to the first temperature so that the refrigeration door will open at the corrected first angle the next time.
[0109] Understandably, the first angle is adjusted based on the first temperature. For example, if the first temperature is too high, the first angle is reduced; if the first temperature is too low, the first angle is increased. This is so that when the refrigerator door opens at the adjusted first angle the next time, the cooling time of the refrigerator compartment can be controlled to be close to that of the freezer compartment, thereby reducing the refrigerator's energy consumption.
[0110] The refrigerator control method provided in this application allows the opening angle of the refrigerator door to determine the cooling duration of the refrigerator compartment. A first temperature indicates whether the freezer compartment is also close to the shutdown temperature when the refrigerator door is closed, thus reflecting whether the cooling durations of the refrigerator and freezer compartments are similar. Therefore, by correcting the first angle based on the first temperature, the amount of cold air entering the refrigerator compartment is appropriate when the refrigerator door opens at the corrected angle the next time, ensuring that the freezer compartment is about to reach the shutdown temperature when the refrigerator door closes. This makes the cooling duration of the refrigerator compartment close to that of the freezer compartment, reducing refrigerator energy consumption. Furthermore, in this refrigerator control method, since the freezer compartment temperature is also close to the shutdown point after the refrigerator door is closed, the time for the freezer compartment to cool alone is shortened, thus shortening the time for the refrigerator compartment to stop cooling and reducing the degree of temperature recovery, which is beneficial for controlling the temperature fluctuation range of the refrigerator compartment.
[0111] For further details, please refer to Figure 3 , Figure 3 A second flowchart of a refrigerator control method provided in this application embodiment. The refrigerator control method includes the following steps S301-S313:
[0112] Step S301: Determine whether the actual temperature of the refrigerator compartment has risen to the fifth preset temperature;
[0113] Initially, the refrigerator air damper and compressor are closed, and the refrigerator compartment is not cooling, so the temperature will gradually rise. The fifth preset temperature is the refrigerator compartment's start-up temperature T. con If the actual temperature of the refrigerator compartment reaches the fifth preset temperature, then proceed to step S302; otherwise, proceed to step S303.
[0114] Step S302: Control the refrigerator's cooling door to open to the preset maximum angle, and control the compressor to start, so as to cool the freezer and refrigerator compartments;
[0115] The preset maximum angle is, for example, 90°. If the refrigerator compartment reaches the start-up temperature first, it means that the refrigerator has just been powered on, just finished defrosting, or there are complex usage conditions such as the refrigerator door being open, the freezer door being open, or the ambient temperature being high. In this case, in order for the refrigerator compartment to obtain enough cooling capacity for cooling, the refrigerator door can be opened at the maximum opening angle of 90°.
[0116] Step S303: Determine whether the freezer temperature has risen to the first preset temperature;
[0117] If the freezer temperature does not reach the first preset temperature, return to step S301; otherwise, proceed to step S304.
[0118] Step S304: Control the refrigeration damper to open to the first angle and control the compressor to start;
[0119] It should be noted that the controller monitors the actual temperature of the refrigerator compartment and the freezer compartment in real time. Steps S301 and S303 are intended to determine which of the refrigerator compartment and the freezer compartment reaches the start-up temperature first. If the refrigerator compartment reaches the start-up temperature first, the refrigerator air door is controlled to open at the preset maximum angle. If the freezer compartment reaches the start-up temperature first, the refrigerator air door is controlled to open at the first angle.
[0120] If the freezer compartment reaches the start-up temperature first, it indicates that the refrigerator is in a stable phase of normal operation. In this case, the refrigerator door is opened at the first angle to provide more suitable cooling capacity to both the refrigerator and freezer compartments. This extends the cooling time of the refrigerator compartment, achieves a 1:1 start-stop cycle between the refrigerator and freezer compartments, and improves the energy efficiency of the compressor.
[0121] Step S305: Determine whether the temperature of the refrigerator compartment has dropped to the second preset temperature;
[0122] If the temperature of the refrigerator compartment drops to the second preset temperature, proceed to step S306 below; otherwise, return.
[0123] Step S306: Control the refrigerator air damper to close, so that the freezer compartment can be cooled separately;
[0124] Step S307: Obtain the first temperature of the freezer compartment when the refrigerator door is closed;
[0125] Step S308: Determine whether the first temperature is greater than or equal to the third preset temperature;
[0126] If the first temperature is greater than or equal to the third preset temperature, then proceed to step S309 below; otherwise, proceed to step S310 below.
[0127] Step S309: Reduce the first angle and use the reduced first angle as the corrected first angle;
[0128] The third preset temperature is, for example, equal to T. doff +K. Understandably, a first temperature greater than or equal to the third preset temperature indicates that the freezer temperature exceeds the preset threshold when the refrigerator damper is closed. This means that the refrigerator damper opening angle was too large in the previous stage, resulting in insufficient cold air entering the freezer and a short cooling time in the refrigerator. Therefore, the opening angle of the damper needs to be reduced.
[0129] For example, the difference between the first angle and the pre-stored first preset angle can be determined as the corrected first angle, and the first preset angle is, for example, 5°.
[0130] In some other embodiments, please refer to Figure 4 , Figure 4 A first flowchart of a method for correcting a first angle provided in this application embodiment, wherein using the reduced first angle as the corrected first angle may include the following steps S401-S403:
[0131] Step S401: Determine the first temperature difference value between the first temperature and the third preset temperature;
[0132] Step S402: Calculate the first correction angle based on the first temperature difference value. The first correction angle is proportional to the first temperature difference value.
[0133] Step S403: Take the difference between the first angle and the first corrected angle as the corrected first angle.
[0134] Understandably, the first correction angle is directly proportional to the first temperature difference. Therefore, the greater the temperature difference between the first temperature and the third preset temperature, the larger the first correction angle, resulting in a greater reduction in the first angle and a relatively smaller corrected first angle. Conversely, the smaller the temperature difference between the first temperature and the third preset temperature, the smaller the first correction angle, resulting in a smaller reduction in the first angle and a relatively larger corrected first angle. Through this method of correcting the first angle, the correction magnitude can be better matched to the magnitude of the first temperature, making the correction of the first angle more intelligent and more in line with actual needs.
[0135] Step S310: Determine whether the first temperature is less than or equal to the fourth preset temperature;
[0136] If the first temperature is less than or equal to the fourth preset temperature, then proceed to step S311 below; otherwise, proceed to step S312 below.
[0137] Step S311: Increase the first angle and use the increased first angle as the corrected first angle;
[0138] The fourth preset temperature is, for example, equal to T. doff Understandably, a first temperature less than or equal to the fourth preset temperature indicates that the freezer temperature is lower than the preset threshold when the refrigerator door is closed. This means that the refrigerator door opening angle was too small in the previous stage, resulting in too much cold air entering the freezer and a longer cooling time in the refrigerator. Therefore, it is necessary to increase the opening angle of the door.
[0139] For example, the angle of the sum of the first angle and the pre-stored second preset angle can be determined as the corrected first angle, and the second preset angle is, for example, 2°.
[0140] In some other embodiments, please refer to Figure 5 , Figure 5 A second flowchart of the method for correcting the first angle provided in the embodiments of this application, wherein using the increased first angle as the corrected first angle may include the following steps S501-S503:
[0141] Step S501: Determine the second temperature difference value between the first temperature and the fourth preset temperature;
[0142] Step S502: Calculate the second correction angle based on the second temperature difference value. The second correction angle is proportional to the second temperature difference value.
[0143] Step S503: Take the angle of the sum of the first angle and the second corrected angle as the corrected first angle.
[0144] Understandably, the second correction angle is directly proportional to the second temperature difference value. Therefore, the greater the temperature difference between the first temperature and the fourth preset temperature, the larger the second correction angle, resulting in a greater increase in the first angle and a relatively larger corrected first angle. Conversely, the smaller the temperature difference between the first temperature and the fourth preset temperature, the smaller the second correction angle, resulting in a smaller increase in the first angle and a relatively smaller corrected first angle. Based on the above method for correcting the first angle, the correction magnitude can be better matched to the magnitude of the first temperature, making the correction of the first angle more intelligent and more in line with actual needs.
[0145] Step S312: The first angle remains unchanged;
[0146] Step S313: Store the corrected first angle so that the refrigeration damper will open at the corrected first angle the next time.
[0147] Understandably, if the freezer temperature is between T when the refrigerator door is closed... doff To T doff If the temperature is between +K, it means that the freezer compartment is also about to reach the shutdown temperature. In this case, the cooling time of the refrigerator compartment is basically the same as that of the freezer compartment. The first angle can be kept at its original value.
[0148] The refrigerator control method provided in this application corrects the first angle to a smaller angle when the first temperature is too high and corrects the first angle to a larger angle when the first temperature is too low, thereby ensuring that the amount of cold entering the refrigerator compartment is appropriate during the next cooling cycle, so that the cooling time of the refrigerator compartment is close to that of the freezer compartment, thereby improving the energy efficiency of the refrigerator.
[0149] This application embodiment also provides a refrigerator storage medium on which a computer program is stored, and the computer program executes the above-described refrigerator control method when it runs.
[0150] This application also provides a refrigerator, for example, please refer to [link to example]. Figures 6-8 , Figure 6 This is a schematic diagram of a first structural embodiment of a refrigerator provided in this application. Figure 7 This is a schematic diagram of a second structure of a refrigerator provided in an embodiment of this application. Figure 8 This is a schematic diagram of a third structure of a refrigerator provided in an embodiment of this application. The refrigerator 100 can be as follows: Figure 6 The cross-door refrigerator shown can also be as follows: Figure 7 The French-style refrigerator shown can also be a side-by-side refrigerator, a double-door refrigerator, etc. Refrigerator 100 includes a freezer compartment 110, a refrigerator compartment 120, a refrigerator air vent 130, a compressor 140, and a controller 150.
[0151] The freezer compartment 110 is equipped with a first temperature sensor 111, and the refrigerator compartment 120 is equipped with a second temperature sensor 121. The controller 150 is connected to the first temperature sensor 111, the second temperature sensor 121, the refrigerator damper 130, and the compressor 140. When the temperature of the freezer compartment 110 rises to a first preset temperature, the controller controls the refrigerator damper 130 to open at a first angle and controls the compressor 140 to start, thereby cooling both the freezer compartment 110 and the refrigerator compartment 120. When the temperature of the refrigerator compartment 120 drops to a second preset temperature, the controller controls the refrigerator damper 130 to close, thereby cooling the freezer compartment 110 separately. The controller also acquires the first temperature of the freezer compartment 110 when the refrigerator damper 130 is closed; corrects and stores the first angle based on the first temperature, so that the refrigerator damper 130 opens at the corrected first angle the next time.
[0152] The refrigerator control method provided in this application allows the opening angle of the refrigerator door 130 to determine the cooling duration of the refrigerator compartment 120. When the refrigerator door 130 is closed, the first temperature of the freezer compartment 110 indicates whether the cooling duration of the refrigerator compartment 120 and the freezer compartment 110 are close. Therefore, by correcting the first angle based on the first temperature, when the refrigerator door 130 opens at the corrected first angle, the cooling duration of the refrigerator compartment is ensured to be close to that of the freezer compartment, thus reducing refrigerator energy consumption. Furthermore, in this refrigerator control method, since the temperature of the freezer compartment 110 is also close to the shutdown point after the refrigerator door 130 is closed, the cooling time of the freezer compartment 110 alone is shortened, thus shortening the time when the refrigerator compartment 120 stops cooling and reducing the degree of temperature recovery, which is beneficial for controlling the temperature fluctuation range of the refrigerator compartment 120.
[0153] The control method, storage medium, and refrigerator provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A control method for a single-system multi-temperature-controlled air-cooled refrigerator, characterized in that, include: When the temperature of the freezer compartment of the refrigerator rises to the first preset temperature, the refrigerator's refrigeration door is opened at a first angle, and the refrigerator's compressor is started to cool the freezer compartment and the refrigerator's refrigeration compartment. When the temperature of the refrigerator compartment drops to the second preset temperature, the refrigerator air damper is closed to cool the freezer compartment separately. Obtain the first temperature of the freezer compartment when the refrigeration damper is closed; The first angle is corrected and stored based on the first temperature, so that the refrigeration door will open at the corrected first angle the next time. The correction of the first angle based on the first temperature includes: If the first temperature is greater than or equal to the third preset temperature, then the first angle is reduced and the reduced first angle is used as the corrected first angle; If the first temperature is less than the third preset temperature, then the first angle is increased or maintained, and the increased or maintained first angle is used as the corrected first angle.
2. The control method for a single-system multi-temperature-controlled air-cooled refrigerator according to claim 1, characterized in that, The step of using the reduced first angle as the corrected first angle includes: The difference between the first angle and the pre-stored first preset angle is used as the corrected first angle.
3. The control method for a single-system multi-temperature-controlled air-cooled refrigerator according to claim 1, characterized in that, The step of using the reduced first angle as the corrected first angle includes: Determine a first temperature difference value between the first temperature and the third preset temperature; A first correction angle is calculated based on the first temperature difference value, and the first correction angle is proportional to the first temperature difference value. The difference between the first angle and the first corrected angle is taken as the corrected first angle.
4. The control method for a single-system multi-temperature-controlled air-cooled refrigerator according to claim 1, characterized in that, If the first temperature is less than the third preset temperature, then increasing or maintaining the first angle and using the increased or maintained first angle as the corrected first angle includes: If the first temperature is less than the third preset temperature but greater than the fourth preset temperature, then the first angle is maintained and the maintained first angle is used as the corrected first angle. If the first temperature is less than or equal to the fourth preset temperature, then the first angle is increased and the increased first angle is used as the corrected first angle, and the fourth preset temperature is less than the third preset temperature.
5. The control method for a single-system multi-temperature-controlled air-cooled refrigerator according to claim 4, characterized in that, The step of using the increased first angle as the corrected first angle includes: The angle obtained by summing the first angle and the pre-stored second preset angle is used as the corrected first angle.
6. The control method for a single-system multi-temperature-controlled air-cooled refrigerator according to claim 4, characterized in that, The step of using the increased first angle as the corrected first angle includes: Obtain the second temperature difference value between the first temperature and the fourth preset temperature; A second correction angle is calculated based on the second temperature difference value, and the second correction angle is proportional to the second temperature difference value. The angle obtained by summing the first angle and the second corrected angle is taken as the corrected first angle.
7. The control method for a single-system multi-temperature control air-cooled refrigerator according to any one of claims 1-6, characterized in that, The control method further includes: Monitor the actual temperature of the refrigerator compartment; If the actual temperature of the refrigerator compartment rises to the fifth preset temperature, the refrigerator's refrigeration damper is opened to the preset maximum angle, and the compressor is started to cool the freezer and refrigerator compartments.
8. A storage medium for a single-system multi-temperature-controlled air-cooled refrigerator, characterized in that, It stores a computer program, which executes the control method of the single-system multi-temperature control air-cooled refrigerator according to any one of claims 1 to 7 when the computer program is run.
9. A single-system multi-temperature-controlled air-cooled refrigerator, characterized in that, include: The freezer compartment is equipped with a first temperature sensor; The refrigerator compartment is equipped with a second temperature sensor; Refrigeration air door; compressor; The controller, connected to the first temperature sensor, the second temperature sensor, the refrigeration damper, and the compressor, is used for: When the temperature of the freezer compartment rises to the first preset temperature, the refrigerator air damper is controlled to open at a first angle, and the compressor is controlled to start, so as to cool down the freezer compartment and the refrigerator compartment. When the temperature of the refrigerator compartment drops to the second preset temperature, the refrigerator air damper is closed to cool the freezer compartment separately. Obtain the first temperature of the freezer compartment when the refrigeration damper is closed; The first angle is corrected and stored based on the first temperature, so that the refrigeration door will open at the corrected first angle the next time. The correction of the first angle based on the first temperature includes: If the first temperature is greater than or equal to the third preset temperature, then the first angle is reduced and the reduced first angle is used as the corrected first angle; If the first temperature is less than the third preset temperature, then the first angle is increased or maintained, and the increased or maintained first angle is used as the corrected first angle.