Control method of refrigerator and refrigerator

Abstract

The application provides a refrigerator control method and a refrigerator. The refrigerator comprises a cabinet, a storage space and a freezing space arranged below the storage space are defined in the cabinet, a compressor and a fan are arranged in the freezing space, the compressor is used for refrigeration, and the fan is used for refrigeration for the storage space in cooperation with the compressor. The control method comprises the following steps: acquiring an ambient temperature and a stop time of the compressor; acquiring a corresponding time threshold according to an interval in which the ambient temperature is located; if the stop time of the compressor is greater than the time threshold, the compressor and the fan are started; if a current temperature of the storage space is less than a temperature threshold, the fan is controlled to stop; and the compressor is controlled to stop after a preset time. According to the ambient temperature and the stop time of the compressor, the application controls the start and stop of the compressor and the fan, so that the freezing space also reaches a target temperature at a lower ambient temperature.

Description

Technical Field

[0001] This application relates to the field of home appliances, and in particular to a method for controlling a refrigerator and a refrigerator. Background Technology

[0002] Currently, refrigerators are mainly divided into two types according to their cooling method: direct cooling and air cooling. Based on the number of evaporators, air-cooled refrigerators can be further divided into single-system, dual-system, and multi-system refrigerators.

[0003] Currently, in single-system multi-compartment frost-free refrigerators where only the refrigeration sensor controls the compressor and fan to start and stop synchronously, the cooling demand of the refrigeration compartment is very small when the ambient temperature is close to the temperature of the refrigeration compartment. Therefore, the compressor operates very infrequently, and the passively cooled freezer compartment cannot reach the target temperature of -18℃. When the ambient temperature is even lower, the compressor may not even start, and the refrigerator may fail to operate. Summary of the Invention

[0004] This application provides a refrigerator control method and a refrigerator, which can improve the situation where the freezer compartment of an existing single-system refrigerator cannot reach the target temperature when the ambient temperature is low.

[0005] This application provides a control method for a refrigerator. The refrigerator includes a cabinet, which defines a storage space and a freezer space disposed below the storage space. A compressor and a fan are disposed within the freezer space. The compressor is used for refrigeration, and the fan cooperates with the compressor to cool the storage space. The control method includes:

[0006] Obtain the ambient temperature and the compressor's downtime;

[0007] The corresponding duration threshold is obtained based on the range of ambient temperature.

[0008] If the downtime of the compressor exceeds the time threshold, then the compressor and the fan are turned on.

[0009] If the current temperature of the storage space is less than the temperature threshold, then control the fan to stop.

[0010] The compressor is stopped after a preset time.

[0011] Optionally, the duration threshold of the compressor is inversely proportional to the ambient temperature.

[0012] Optionally, the compressor is a variable frequency compressor, and the control method further includes:

[0013] The compressor is controlled to operate at a preset speed based on the ambient temperature.

[0014] The ambient temperature range is pre-divided into several temperature levels, each temperature level has a corresponding rotation speed, and the rotation speed is proportional to the ambient temperature.

[0015] Optionally, the control method includes:

[0016] After controlling the compressor to run at the preset speed for a first preset time, the speed of the compressor is gradually reduced.

[0017] Optionally, controlling the compressor to stop after the preset time includes:

[0018] Obtain the operating time of the compressor;

[0019] If the compressor's running time reaches a second preset time, the compressor is controlled to stop, where the second preset time is less than the compressor's shutdown time.

[0020] Optionally, the refrigerator further includes a door located on the front side of the refrigerator body, allowing the user to open or close the storage space and the freezer space. The step of controlling the compressor to stop after a preset time also includes:

[0021] The number of times the freezer compartment door was opened was obtained;

[0022] When the number of times the compressor is turned on exceeds a preset threshold, the operating time of the compressor is obtained.

[0023] If the compressor's running time reaches a third preset time, the compressor is controlled to stop, wherein the third preset time is greater than the second preset time.

[0024] Optionally, controlling the compressor to stop after the preset time further includes:

[0025] Obtain the remaining storage space of the frozen space;

[0026] When the remaining storage space is less than a preset storage space value, the running time of the compressor is obtained;

[0027] If the compressor's running time reaches a fourth preset time, the compressor is controlled to stop, wherein the fourth preset time is greater than the second preset time.

[0028] Optionally, the control method includes:

[0029] After controlling the fan to run at a first speed for a fifth preset time, the speed of the fan is gradually reduced.

[0030] This application also provides a refrigerator, including:

[0031] The cabinet defines a storage space and a freezing space located below the storage space. The freezing space is equipped with a compressor and a fan. The compressor is used for refrigeration, and the fan is used in conjunction with the compressor to refrigerate the storage space.

[0032] A processor, connected to the compressor and the fan, is configured to:

[0033] Obtain the ambient temperature and the compressor's downtime;

[0034] The corresponding duration threshold is obtained based on the range of ambient temperature.

[0035] If the downtime of the compressor exceeds the time threshold, then the compressor and the fan are turned on.

[0036] If the current temperature of the storage space is less than the temperature threshold, then control the fan to stop.

[0037] The compressor is stopped after a preset time.

[0038] Optionally, the refrigerator further includes a door and an evaporator. The door is located on the front side of the refrigerator body to allow the user to open or close the storage space and the freezing space. The freezing space includes a side wall opposite to the door, and the evaporator is located on the side wall of the freezing space.

[0039] The beneficial effects of this application are as follows: The refrigerator control method provided in this application includes a refrigerator body, within which a storage space and a freezer space located below the storage space are defined. A compressor and a fan are installed in the freezer space. The compressor is used for refrigeration, and the fan works in conjunction with the compressor to refrigerate the storage space. The control method includes: acquiring the ambient temperature and the compressor's off-time; acquiring a corresponding duration threshold based on the ambient temperature range; if the compressor's off-time exceeds the duration threshold, then starting the compressor and fan; if the current temperature of the compartment is lower than a temperature threshold, then stopping the fan; and stopping the compressor after a preset time. This application embodiment controls the compressor and fan to start refrigeration based on the ambient temperature and the compressor's off-time. After the storage space reaches its off point, the fan is turned off, and the compressor is controlled to run for a preset time after the fan is turned off, allowing the compressor to refrigerate the freezer space independently, thereby lowering the temperature of the freezer space to achieve the target temperature. Attached Figure Description

[0040] 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. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] 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.

[0042] Figure 1 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application.

[0043] Figure 2 This is a flowchart illustrating the refrigerator control method provided in an embodiment of this application.

[0044] Figure 3 for Figure 2 The diagram shows the first process flow for controlling the compressor to stop in the control method shown.

[0045] Figure 4 for Figure 2 The diagram shows the second process for controlling the compressor to stop in the control method shown.

[0046] Figure 5 for Figure 2 The diagram shows the experimental verification of the control method in which the freezing space reaches the target temperature when the ambient temperature is 10℃ and the freezing space is unloaded.

[0047] Figure 6 for Figure 2 The diagram shows the experimental verification of the control method in which the ambient temperature is 10℃ and the freezer space is loaded to reach the target temperature.

[0048] Figure 7 for Figure 2 The diagram shows the experimental verification of the control method in which the freezing space reaches the target temperature when the ambient temperature is 5℃ and the freezing space is unloaded. Detailed Implementation

[0049] 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.

[0050] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] Currently, single-system multi-compartment frost-free refrigerators, where only the refrigeration sensor controls the compressor and fan to start and stop synchronously, have the following problems: when the ambient temperature is close to the temperature of the refrigeration compartment, the cooling demand of the refrigeration compartment is very small, so the compressor starts very rarely. Therefore, the temperature of the passively refrigerated freezer compartment cannot reach the target temperature requirement of -18℃. When the ambient temperature is even lower, the compressor may not even start, and the refrigerator may fail to operate.

[0052] The main solution currently used in the industry is to add a compensating heater to the refrigerator compartment. When the ambient temperature drops below a certain value, the heater is activated to compensate for the cooling demand in the refrigerator compartment, thereby increasing the compressor's operating rate and pulling the freezer to an even lower temperature. Additionally, some solutions include manually adjustable dampers in the refrigerator's air ducts. By adjusting the size of the air outlets in the refrigerator compartment, less cooling is received per unit time, thus increasing the compressor's operating rate.

[0053] However, the above solutions require the use of heaters or dampers, which increases the number of refrigerator components and raises the cost.

[0054] Therefore, in order to solve the above problems, this application proposes a refrigerator control method and a refrigerator. The following description, in conjunction with the accompanying drawings and embodiments, further illustrates this application.

[0055] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application. Figure 2This is a schematic flowchart of a refrigerator control method provided in an embodiment of this application. This application provides a refrigerator 100, which includes a cabinet 10 and a processor 40. The cabinet 10 defines a storage space 120 and a freezer space 110 disposed below the storage space 120. A compressor 30 and a fan 20 are disposed within the freezer space 110. The compressor 30 is used for cooling, and the fan 20 cooperates with the compressor 30 to cool the storage space 120.

[0056] The storage space 120 can be configured as one or more as needed. When there is only one storage space 120, it can be a variable temperature space or a refrigerated space. When there are two or more storage spaces 120, they include at least one or more of variable temperature spaces and refrigerated spaces. In specific implementations, those skilled in the art can configure the number and function of the storage spaces 120 as needed. This application uses a refrigerated space as an example for illustration, but it should not be construed as a limitation.

[0057] The processor 40 is connected to the compressor 30 and the fan 20. The processor 40 is configured to execute the control method of the refrigerator 100. The specific flow of the control method of the refrigerator 100 can be found in [reference needed]. Figure 2 , Figure 2 This is a flowchart illustrating the refrigerator control method provided in this embodiment. The specific flow of the refrigerator 100 control method is as follows:

[0058] 101. Obtain the ambient temperature and compressor downtime.

[0059] In some embodiments, the refrigerator 100 includes a temperature sensor connected to the processor 40. The temperature sensor is used to collect the ambient temperature of the refrigerator 100 and send the collected ambient temperature to the processor 40.

[0060] It should be noted that the embodiments of this application mainly address the problem of refrigerator 100 malfunctioning when the ambient temperature is low. Therefore, the operating rules of the embodiments of this application are applied to situations where the ambient temperature is low. It is understood that the embodiments of this application use a low temperature of less than or equal to 13°C as an example for explanation, and should not be construed as a limitation.

[0061] In some embodiments, the refrigerator 100 includes a first timer connected to the processor 40. The first timer is used to time the shutdown time of the compressor 30 and send the shutdown time of the compressor 30 to the processor 40.

[0062] 102. Obtain the corresponding duration threshold based on the ambient temperature range.

[0063] Based on the obtained ambient temperature, determine the shutdown duration threshold that compressor 30 should meet.

[0064] Among them, the duration threshold of compressor 30 is inversely proportional to the ambient temperature.

[0065] For example, if the ambient temperature reaches a first preset temperature, the shutdown time needs to reach a first preset time. If the ambient temperature reaches a second preset temperature, the shutdown time needs to reach a second preset time; wherein, the first preset temperature is greater than the second preset temperature, and the first preset time is less than the second preset time.

[0066] For example, when the ambient temperature is between 8°C and 13°C, the shutdown time threshold for compressor 30 is 25 minutes. When the ambient temperature is between 3°C and 8°C, the shutdown time threshold for compressor 30 is 50 minutes. When the ambient temperature is below 3°C, the shutdown time threshold for compressor 30 is 90 minutes.

[0067] It should be noted that in some embodiments, the refrigerator 100's refrigeration compartment is equipped with a temperature control button for adjusting the temperature range within the refrigerator 100. When the temperature control button is in different positions, the compressor 30's shutdown duration threshold changes accordingly. For example, if the ambient temperature is 10°C, when the temperature control button is in the high position, the compressor 30's shutdown duration threshold is 18 minutes. When the temperature control button is in the medium or low position, the compressor 30's shutdown duration threshold is 25 minutes.

[0068] It is understandable that the specific allocation of ambient temperature and the threshold for downtime need to be set according to the actual situation, and no specific restrictions are made here.

[0069] 103. If the compressor's downtime exceeds the time threshold, then start the compressor 30 and the fan 20.

[0070] When the shutdown time of compressor 30 exceeds the time threshold, compressor 30 and fan 20 are forcibly turned on to provide cooling.

[0071] Compared to existing technologies where a heater is needed in the refrigerator compartment to increase cooling demand and thus increase the compressor 30's operating rate when the ambient temperature is low, this application embodiment determines whether the ambient temperature and the compressor 30's off-time meet preset conditions. If the preset conditions are met, the compressor 30 is forcibly turned on, allowing the refrigerator 100 to cool even at lower ambient temperatures, thereby ensuring the freezer compartment meets its cooling capacity requirements. Furthermore, the control method of this application embodiment eliminates the need for a heater in the refrigerator compartment, reducing the number of components and lowering costs.

[0072] It should be noted that the compressor 30 and the fan 20 need to be turned on simultaneously. This is because the cooling capacity required by the storage compartment is less than that required by the freezer compartment. When the freezer compartment lacks cooling capacity, if the fan 20 continues to run after the compressor 30 stops, it will exacerbate the uneven distribution of cooling capacity. Furthermore, when the compressor 30 restarts after a period of time, it will be difficult for the fan 20 to restart, resulting in a large temperature gradient in the freezer compartment, which may prevent the freezer compartment from reaching the target temperature. Therefore, this embodiment of the application avoids the situation where the freezer compartment fails to reach the target temperature by controlling the compressor 30 and the fan 20 to run simultaneously.

[0073] In some embodiments, the fan 20 needs to run for at least 30 seconds after startup. This is because when the ambient temperature is 0°C or even below, the refrigeration sensor located in the refrigeration space may remain below the set shutdown temperature T1. In this case, the fan 20 will not effectively start, and the refrigeration compartment does not require cooling, thus the fan 20 not being on meets the refrigeration requirements. However, during the verification process, a large temperature gradient in the freezer compartment was observed. Therefore, through further extensive experimental verification, the temperature gradient in the freezer compartment was significantly improved after the fan 20 ran for 30 seconds. Moreover, with a short startup time, the air pressure generated by the fan 20 is insufficient to deliver excess cooling to the refrigeration compartment, so the temperature in the refrigeration compartment remains essentially unchanged. It should be noted that the statement that the fan 20 needs to run for at least 30 seconds after startup is an example and should not be construed as a limitation. The duration for which the fan 20 runs after startup needs to be set according to the actual situation, and no specific limit is made here.

[0074] In some embodiments, the compressor 30 is a variable frequency compressor. When the compressor 30 is turned on, it can be controlled to operate at a preset speed according to the ambient temperature. The ambient temperature range is pre-divided into several temperature levels, each with a corresponding speed, and the speed is directly proportional to the ambient temperature. That is, the higher the ambient temperature, the higher the speed of the compressor 30 when it is turned on. When the ambient temperature is high, the compressor 30 operates at a higher speed, which can quickly cool the refrigerator 100 and prevent damage to stored items. When the ambient temperature is low, the compressor 30 operates at a lower speed, which can accurately control the temperature and avoid wasted cooling.

[0075] In some other embodiments, after the compressor 30 is controlled to run at a preset speed for a first preset time, the speed of the compressor 30 is gradually reduced. That is, the compressor 30 is controlled to run at its highest speed for a period of time, which can quickly cool the refrigerator 100, causing the temperature of both the storage space 120 and the freezer space 110 to drop. Then, the speed of the compressor 30 is reduced to stabilize the temperature of the storage space 120 and the freezer space 110, thereby reducing energy consumption.

[0076] In some embodiments, the fan 20 is a variable frequency fan 20. After the fan 20 runs at a first speed for a fifth preset time, the speed of the fan 20 is gradually reduced. Running the fan 20 at its highest speed for a period of time can quickly cool the storage space 120, causing the temperature of the storage space 120 to drop. Then, gradually reducing the speed of the fan 20 can reduce energy consumption.

[0077] 104. If the current temperature of the storage space is lower than the temperature threshold, the fan will be shut down.

[0078] Get the current temperature of storage space 120, and determine whether the current temperature is lower than the temperature threshold to determine whether storage space 120 has met the cooling requirements.

[0079] For example, if the current temperature of storage space 120 is less than the temperature threshold, it means that storage space 120 has met the cooling requirements, and the fan 20 is controlled to stop. If the current temperature of storage space 120 is greater than or equal to the temperature threshold, it means that storage space 120 has not yet met the cooling requirements, and the fan 20 is controlled to continue running.

[0080] In some embodiments, setting the temperature threshold to 0°C can prevent the refrigeration temperature from crossing zero and causing icing when the ambient temperature is close to 0°C. This is because in the control method of this embodiment, the refrigeration space no longer has a start-up temperature. Instead, as the compressor 30 starts cooling, during the stable phase, the ambient temperature is close to 0°C, and the temperature of the refrigeration space is basically the same as the ambient temperature. If the stop-off temperature is lower than 0°C, the final integrated average temperature of the refrigeration space may cross zero, leading to icing within the refrigeration space. For example, through experimental verification, in a test with an ambient temperature of 5°C, the fan 20 stop-off point was initially set to -1.5°C, resulting in an average refrigeration temperature of approximately -1°C. However, after adjusting the fan 20 stop-off point to 0°C, the average temperature of all three refrigerators 100 was above 0.2°C. It should be noted that the specific setting of the temperature threshold needs to be adjusted according to different refrigerators 100, different environments, and actual conditions; no specific limitations are imposed here.

[0081] 105. Control the compressor to stop after the preset time.

[0082] After the fan 20 stops, the compressor 30 runs for a preset time before stopping.

[0083] In some embodiments, the refrigerator 100 includes a second timer connected to the processor 40. The second timer is used to time the running time of the compressor 30 and transmit the running time of the compressor 30 to the processor 40.

[0084] For example, the processor 40 obtains the running time of the compressor 30 through a second timer. If the running time of the compressor 30 reaches a second preset time, the processor 40 controls the compressor 30 to stop. In some embodiments, the second preset time is less than the shutdown time of the compressor 30. The specific settings need to be configured according to the actual situation.

[0085] It is understandable that when the refrigerator is first turned on or powered on after defrosting, the compressor 30 will run for an extended period of time. In some embodiments, the compressor 30 will run for at least 40 minutes. It should be noted that the specific second preset time can be described according to the actual situation, and no specific limitation is made here.

[0086] It should be noted that the shutdown condition of compressor 30 should be determined only after fan 20 has stopped. If compressor 30 stops immediately upon meeting the shutdown condition while fan 20 continues to run, it will lead to insufficient cooling capacity in the freezer compartment. If both fan 20 and compressor 30 are shut down simultaneously, and a large number of items are stored in the refrigerator compartment, the temperature cannot be quickly raised. If compressor 30 continues to run after fan 20 stops, it can better adapt to load changes. If the number of items stored in the refrigerator or freezer compartment 110 increases, the air temperature circulating to the refrigerator sensor will change, extending the cooling time of the refrigerator compartment. This increases the operating rate of compressor 30. Even if the load on the refrigerator compartment increases, the freezer compartment 110 will be lowered to a lower temperature in the short term, with no negative impact.

[0087] Refrigerator 100 also includes a door located on the front of the cabinet 10, allowing users to open or close the storage space 120 and the freezer space 110. The compressor 30 can be stopped after a preset time, or other conditions can be considered. Please refer to the following section. Figure 3 , Figure 3 for Figure 2 The diagram illustrates the first process for controlling the compressor to stop in the control method shown. Controlling the compressor to stop after a preset time (30 seconds) also includes the following steps:

[0088] 201. Obtain the number of times the freezer compartment door has been opened.

[0089] Get the number of times the freezer door of freezer compartment 110 is opened within a preset time.

[0090] 202. When the number of times the compressor is turned on exceeds the preset threshold, obtain the compressor's running time.

[0091] 203. If the compressor's running time reaches the third preset time, then control the compressor to stop, wherein the third preset time is greater than the second preset time.

[0092] When the freezer compartment 110 door is opened a lot within a preset time, the operating time of the compressor 30 can be extended to ensure the temperature of the freezer compartment 110.

[0093] Please continue reading. Figure 4 , Figure 4 for Figure 2 The diagram illustrates the second process for controlling the compressor to stop in the control method shown. Controlling the compressor to stop after a preset time also includes the following steps:

[0094] 301. Obtain the remaining storage space in the freezer.

[0095] In some embodiments, the items already stored in the freezer space 110 are obtained by a weight sensor, and the remaining storage space 120 of the freezer space 110 is calculated by a processor 40.

[0096] In some other embodiments, the remaining storage space 120 of the freezer space 110 is obtained by direct testing using an infrared scanner.

[0097] It is understandable that the specific method for obtaining the remaining storage space 120 of the frozen space 110 is not specifically limited here, and can be set according to the actual situation.

[0098] 302. When the remaining storage space is less than the preset storage space value, obtain the compressor's running time.

[0099] When the remaining storage space 120 is less than the preset storage space 120, it means that there are too many items stored in the freezer space 110, and the freezer space 110 needs to be cooled more.

[0100] 303. If the compressor's running time reaches the fourth preset time, then control the compressor to stop, wherein the fourth preset time is greater than the second preset time.

[0101] By extending the operating time of the compressor 30 when the remaining storage space 120 is less than the preset storage space 120 value, that is, by controlling the fourth preset time to be greater than the second preset time, the temperature of the freezer compartment can be guaranteed to reach the target temperature.

[0102] The refrigerator 100 also includes an evaporator, and the freezer compartment 110 includes a side wall opposite to the door. The evaporator is disposed on the side wall of the freezer compartment 110. By placing the evaporator on the side wall, the refrigerator 100 of this embodiment does not need to be equipped with a damper. That is, after the fan 20 stops and the compressor 30 continues to cool, the cold air sinks, so the cold air in the freezer compartment 110 will not be transferred to the refrigerator compartment, thereby ensuring the required temperature of the freezer compartment 110.

[0103] According to the ambient temperature and the shutdown time of the compressor 30, the compressor 30 and the fan 20 are controlled to start cooling. After the storage space 120 reaches the shutdown point, the fan 20 is turned off, and the compressor 30 is controlled to run for a preset time after the fan 20 is turned off, so that the compressor 30 alone cools the freezing space 110, thereby reducing the temperature of the freezing space 110. This allows the target temperature of the freezing space 110 to be reached even when the ambient temperature is low. Furthermore, the present application embodiment does not require the use of auxiliary heaters and dampers, reducing the number of components and saving costs.

[0104] Please continue reading. Figures 5 to 7 , Figure 5 for Figure 2 The diagram shows the experimental verification of the control method in which the freezing space reaches the target temperature when the ambient temperature is 10℃ and the freezing space is unloaded. Figure 6 for Figure 2 The diagram shows the experimental verification of the control method in which the ambient temperature is 10℃ and the freezer space is loaded to reach the target temperature. Figure 7 for Figure 2 The control method shown is experimentally verified when the ambient temperature is 5℃ and the freezer compartment is unloaded, demonstrating that the freezer compartment reaches the target temperature. As can be seen from the figure, when the ambient temperature is 10℃ and the freezer compartment 110 is unloaded, the average temperature of the freezer compartment 110 over a period of time is -22.3℃. When the ambient temperature is 10℃ and the freezer compartment 110 is loaded, even when the freezer compartment 110 is loaded with the hottest load, the highest temperature of the freezer compartment still reaches below -18℃, meeting the experimental requirements for the freezer compartment. When the ambient temperature is 5℃ and the freezer compartment 110 is unloaded, the three-point integral average of the unloaded freezer compartment can also be lowered to approximately -18 degrees Celsius, ensuring that the refrigeration temperature does not exceed 0 degrees Celsius. Therefore, through experimental verification, the refrigerator control method provided in this application embodiment can ensure that the temperatures of both the refrigeration and freezer compartments meet the target temperature even at low ambient temperatures. Furthermore, this refrigerator does not require a damper or heater, further reducing the number of components and saving costs.

[0105] The control method 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 descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for controlling a refrigerator, characterized in that, The refrigerator includes a cabinet, within which a storage space and a freezer space are defined below the storage space. A compressor and a fan are installed in the freezer space. The compressor is used for refrigeration, and the fan works in conjunction with the compressor to cool the storage space. The compressor is an inverter compressor. The control method includes: Obtain the ambient temperature and the compressor's downtime; The corresponding duration threshold is obtained based on the range of ambient temperature. If the downtime of the compressor exceeds the time threshold, the compressor and the fan are turned on, and the compressor is controlled to operate at a preset speed according to the ambient temperature. The ambient temperature range is pre-divided into several temperature levels, each temperature level has a corresponding speed, and the speed is proportional to the ambient temperature. If the current temperature of the storage space is lower than the temperature threshold, the fan is controlled to stop. The compressor is stopped after a preset time.

2. The control method according to claim 1, characterized in that, The duration threshold of the compressor is inversely proportional to the ambient temperature.

3. The control method according to claim 1, characterized in that, The control method includes: After controlling the compressor to run at the preset speed for a first preset time, the speed of the compressor is gradually reduced.

4. The control method according to claim 1, characterized in that, The preset time followed by controlling the compressor to stop includes: Obtain the operating time of the compressor; If the compressor's running time reaches a second preset time, the compressor is controlled to stop, where the second preset time is less than the compressor's shutdown time.

5. The control method according to claim 4, characterized in that, The refrigerator also includes a door located on the front side of the refrigerator body, allowing the user to open or close the storage space and the freezer space. The preset time for controlling the compressor to stop further includes: The number of times the freezer compartment door was opened was obtained; When the number of times the compressor is turned on exceeds a preset threshold, the operating time of the compressor is obtained. If the compressor's running time reaches a third preset time, the compressor is controlled to stop, wherein the third preset time is greater than the second preset time.

6. The control method according to claim 4, characterized in that, The step of controlling the compressor to stop after the preset time also includes: Obtain the remaining storage space of the frozen space; When the remaining storage space is less than a preset storage space value, the running time of the compressor is obtained; If the compressor's running time reaches a fourth preset time, the compressor is controlled to stop, wherein the fourth preset time is greater than the second preset time.

7. The control method according to claim 1, characterized in that, The control method includes: After controlling the fan to run at a first speed for a fifth preset time, the speed of the fan is gradually reduced.

8. A refrigerator, characterized in that, include: The cabinet defines a storage space and a freezing space located below the storage space. The freezing space is equipped with a compressor and a fan. The compressor is used for refrigeration, and the fan is used to cooperate with the compressor to refrigerate the storage space. The compressor is a variable frequency compressor. A processor, connected to the compressor and the fan, is configured to: Obtain the ambient temperature and the compressor's downtime; The corresponding duration threshold is obtained based on the range of ambient temperature. If the downtime of the compressor exceeds the time threshold, the compressor and the fan are turned on, and the compressor is controlled to operate at a preset speed according to the ambient temperature. The ambient temperature range is pre-divided into several temperature levels, each temperature level has a corresponding speed, and the speed is proportional to the ambient temperature. If the current temperature of the storage space is lower than the temperature threshold, the fan is controlled to stop. The compressor is stopped after a preset time.

9. The refrigerator according to claim 8, characterized in that, The refrigerator also includes a door and an evaporator. The door is located on the front side of the refrigerator body, allowing the user to open or close the storage space and the freezing space. The freezing space includes a side wall opposite to the door, and the evaporator is located on the side wall of the freezing space.

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