Refrigerator and method for controlling operation of refrigerator

Abstract

The application discloses a refrigerator and a running control method of the refrigerator. When the refrigerator is in an adaptive running mode, an ambient temperature, an opening door cumulative time length and an opening door cumulative temperature difference are obtained with a preset time length as an adjustment period. The opening door cumulative time length is a cumulative value of opening door time lengths of all storage compartments in the current adjustment period, and the opening door cumulative temperature difference refers to a cumulative value of a difference between interval temperatures at two time points of before opening and after closing doors of all storage compartments in the current adjustment period. According to the ambient temperature, the opening door cumulative time length and the opening door cumulative temperature difference, a target ring temperature coefficient and a target temperature difference coefficient are determined to calculate a target working frequency of the compressor, and the compressor is controlled to run according to the target working frequency. By adopting the application, the compressor running parameters of the refrigerator can be intelligently adjusted according to the use condition of a user, the refrigeration performance of the refrigerator is optimized, and the energy consumption in the actual running process of the refrigerator is reduced.

Description

Technical Field

[0001] This invention relates to the field of refrigerator control technology, and more particularly to a refrigerator and a method for controlling the operation of a refrigerator. Background Technology

[0002] With the development of technology and the continuous improvement of people's living standards, refrigerators are becoming increasingly popular and have become an indispensable household appliance. People's demands for refrigerators are also rising. Users typically open the refrigerator door to put food in during meal preparation. This process increases the refrigerator's energy consumption due to the rise in internal temperature and the leakage of cold air. At this time, the compressor's cooling capacity needs to be increased to quickly cool the food. However, at other times, especially during the long eight-hour nighttime hours, users do not use the refrigerator. During this period, the refrigerator operates in a stable state, and the cooling capacity required to preserve food is relatively small.

[0003] However, the inventors have found that the existing technology has at least the following problems: In the existing compressor operation control strategy, the operating parameters of the compressor are usually controlled only according to the ambient temperature and the set freezing temperature. This control method is relatively simple and cannot be intelligently adjusted according to the user's actual use of the refrigerator. It is difficult to simultaneously ensure the refrigerator's cooling effect and reduce power consumption, resulting in a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a refrigerator and a refrigerator operation control method, which can intelligently adjust the refrigerator compressor operating parameters according to the user's usage, optimize the refrigerator's cooling performance, and reduce the energy consumption during the actual operation of the refrigerator.

[0005] To achieve the above objectives, embodiments of the present invention provide a refrigerator, comprising: The container has at least one storage compartment inside. A compressor, located inside the housing, is used to realize refrigerant circulation; Controller, used for: When the refrigerator is in adaptive operation mode, it uses a preset time period as the adjustment cycle to obtain the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference. The cumulative door opening time is the cumulative value of the door opening time of all storage compartments in the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperature of all storage compartments before the door is opened and after the door is closed in the current adjustment cycle. The target ambient temperature coefficient and the target temperature difference coefficient are determined based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference. Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

[0006] As an improvement to the above solution, determining the target ambient temperature coefficient and target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference specifically includes: Calculate the product of the cumulative door opening time and the cumulative door opening temperature difference to obtain the cumulative temperature change in the current adjustment cycle; Based on the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, determine the ambient temperature coefficient and temperature difference coefficient corresponding to the ambient temperature and cumulative temperature change under the current adjustment cycle, and obtain the target ambient temperature coefficient and target temperature difference coefficient. Among them, in the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, under the same ambient temperature, the cumulative temperature change is positively correlated with both ambient temperature coefficient and temperature difference coefficient; under the same cumulative temperature change, the ambient temperature is positively correlated with the ambient temperature coefficient and negatively correlated with the temperature difference coefficient.

[0007] As an improvement to the above solution, the step of calculating the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient specifically includes: Based on the target ambient temperature coefficient, the target temperature difference coefficient, and the maximum and minimum operating frequencies of the compressor, the target operating frequency of the compressor is calculated using the following formula:

[0008] Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

[0009] As an improvement to the above solution, before acquiring the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset adjustment cycle when the refrigerator is in adaptive operation mode, the controller is further configured to: Receive user input commands for setting the operating mode; According to the operating mode setting instructions, the refrigerator is controlled to enter either an adaptive operating mode or a custom operating mode.

[0010] As an improvement to the above solution, the custom operating mode includes three sub-operating modes: performance priority, energy saving priority, and balance. The controller is also used for: When the refrigerator is in a custom operating mode, obtain the current ambient temperature; Based on the ambient temperature and the sub-operation mode selected by the user in the operation mode setting instruction, determine the target ambient temperature coefficient and the target temperature difference coefficient; Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

[0011] This invention also provides a method for controlling the operation of a refrigerator, the refrigerator comprising: The container has at least one storage compartment inside. A compressor, located inside the housing, is used to realize refrigerant circulation; The method includes: When the refrigerator is in adaptive operation mode, it uses a preset time period as the adjustment cycle to obtain the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference. The cumulative door opening time is the cumulative value of the door opening time of all storage compartments in the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperature of all storage compartments before the door is opened and after the door is closed in the current adjustment cycle. The target ambient temperature coefficient and the target temperature difference coefficient are determined based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference. Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

[0012] As an improvement to the above solution, determining the target ambient temperature coefficient and target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference specifically includes: Calculate the product of the cumulative door opening time and the cumulative door opening temperature difference to obtain the cumulative temperature change in the current adjustment cycle; Based on the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, determine the ambient temperature coefficient and temperature difference coefficient corresponding to the ambient temperature and cumulative temperature change under the current adjustment cycle, and obtain the target ambient temperature coefficient and target temperature difference coefficient. Among them, in the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, under the same ambient temperature, the cumulative temperature change is positively correlated with both ambient temperature coefficient and temperature difference coefficient; under the same cumulative temperature change, the ambient temperature is positively correlated with the ambient temperature coefficient and negatively correlated with the temperature difference coefficient.

[0013] As an improvement to the above solution, the step of calculating the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient specifically includes: Based on the target ambient temperature coefficient, the target temperature difference coefficient, and the maximum and minimum operating frequencies of the compressor, the target operating frequency of the compressor is calculated using the following formula:

[0014] Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

[0015] As an improvement to the above solution, before acquiring the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset adjustment cycle when the refrigerator is in adaptive operation mode, the method further includes: Receive user input commands for setting the operating mode; According to the operating mode setting instructions, the refrigerator is controlled to enter either an adaptive operating mode or a custom operating mode.

[0016] As an improvement to the above solution, the custom operating mode includes three sub-operating modes: performance priority, energy saving priority, and balance. The method further includes: When the refrigerator is in a custom operating mode, obtain the current ambient temperature; Based on the ambient temperature and the sub-operation mode selected by the user in the operation mode setting instruction, determine the target ambient temperature coefficient and the target temperature difference coefficient; Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

[0017] Compared with existing technologies, the refrigerator and its operation control method disclosed in this invention, when the refrigerator is in adaptive operation mode, acquires the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset time period as the adjustment cycle; wherein, the cumulative door opening time is the cumulative value of the door opening time of all storage compartments in the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperatures of all storage compartments before and after the door is opened in the current adjustment cycle; based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference, a target ambient temperature coefficient and a target temperature difference coefficient are determined; based on the target ambient temperature coefficient and the target temperature difference coefficient, a target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

[0018] Using the technical means of this invention, based on big data statistics of refrigerator usage, it is found that the loss of cold air during the process of opening the door to retrieve items is positively correlated with the opening time. Furthermore, the addition of warmer food during the process of placing food in the refrigerator also raises the compartment temperature. Therefore, by monitoring the cumulative change in compartment temperature before and after opening the refrigerator door, the changes in the internal state of the refrigerator can be directly reflected. Combined with the ambient temperature, the compressor's operating frequency can be adjusted in a timely manner. This allows the compressor to operate at a high frequency when food needs rapid cooling and at a low frequency when the user is not using the refrigerator, thus balancing the cooling effect inside the compartment with energy savings, effectively improving the user experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of the present invention; Figure 2 This is a flowchart illustrating the operation performed by the refrigerator controller in the first embodiment of the present invention. Figure 3 This is a schematic diagram of the refrigerator in a preferred embodiment of the present invention; Figure 4 This is a flowchart illustrating the operation performed by the refrigerator controller in a second embodiment of the present invention. Figure 5 This is a flowchart illustrating the operation performed by the refrigerator controller in the third embodiment of the present invention. Figure 6 This is a flowchart illustrating the operation performed by the refrigerator controller in the fourth embodiment of the present invention. Figure 7 This is a schematic diagram illustrating the principle of setting the operating mode in an embodiment of the present invention; Figure 8 This is a schematic diagram illustrating the principle of setting a sub-running mode of a custom running mode in an embodiment of the present invention; Figure 9 This is a flowchart illustrating the operation performed by the refrigerator controller in the fifth embodiment of the present invention. Figure 10 This is a flowchart illustrating a refrigerator operation control method provided in an embodiment of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] See Figure 1 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of the present invention. The refrigerator 10 provided in this embodiment includes a cabinet 11, with at least one storage compartment 12 inside the cabinet 11, such as a refrigerator compartment and / or a freezer compartment, for storing items requiring preservation or freezing. The refrigerator also includes a refrigeration system for performing the refrigeration operation.

[0022] It should be noted that the refrigerator operates through the refrigeration system, providing cooling capacity to the storage compartment to maintain it at a constant low temperature. Specifically, the refrigeration system of the refrigerator in this embodiment consists of a compressor 13, a condenser, a dryer filter, a capillary tube, and an evaporator. The operation of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process.

[0023] The compression process is as follows: When the refrigerator is plugged in and there is a need for cooling, the compressor starts working. Low-temperature, low-pressure refrigerant is drawn into the compressor and compressed into high-temperature, high-pressure superheated gas in the compressor cylinder before being discharged into the condenser. The condensation process is as follows: The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, and its temperature continuously decreases until it is gradually cooled into room-temperature, high-pressure saturated vapor, and further cooled into saturated liquid. The temperature at this point is no longer decreasing; this temperature is called the condensation temperature. The pressure of the refrigerant remains almost constant throughout the entire condensation process. The throttling process is as follows: After condensation, the saturated refrigerant liquid is filtered through a dryer to remove moisture and impurities before flowing into a capillary tube. Through this tube, it undergoes throttling and pressure reduction, turning the refrigerant into room-temperature, low-pressure wet vapor. The evaporation process is as follows: Subsequently, the refrigerant begins to absorb heat and vaporize in the evaporator, which not only lowers the temperature of the evaporator and its surroundings but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator returns to the compressor, repeating the above process to transfer heat from inside the refrigerator to the outside air, thus achieving the purpose of cooling.

[0024] The refrigerator 10 is also equipped with a controller 14, which is used to acquire information such as environmental parameters and refrigerator operating parameters, perform data calculations, and generate relevant control commands to send to the compressor 13 to control the operating parameters of the compressor 13.

[0025] Specifically, see Figure 2 This is a flowchart illustrating the operation performed by the refrigerator controller in the first embodiment of the present invention. The controller 14 is specifically used to execute steps S11 to S13: S11. When the refrigerator is in adaptive operation mode, it obtains the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset time period as the adjustment cycle; wherein, the cumulative door opening time is the cumulative value of the door opening time of all storage compartments under the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperature of all storage compartments before the door is opened and after the door is closed under the current adjustment cycle. S12. Determine the target ambient temperature coefficient and the target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference; S13. Calculate the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient, and control the compressor to operate at the target operating frequency.

[0026] In this embodiment of the invention, when the refrigerator is in adaptive operation mode, a preset duration t1 is used as an adjustment cycle, and the compressor's operating parameters are adjusted once in each adjustment cycle. Specifically, within the current adjustment cycle, the controller 14 acquires the ambient temperature Te, the cumulative door opening time S, and the cumulative door opening temperature difference ΔT, and determines the compressor's operating frequency in the next adjustment cycle based on the ambient temperature Te, the cumulative door opening time S, and the cumulative door opening temperature difference ΔT.

[0027] The preset duration t1 is pre-set, for example, t1 = 1 hour. Of course, it can also be set to other values ​​according to the actual situation, without affecting the beneficial effects of the present invention.

[0028] Preferably, see Figure 3 This is a schematic diagram of the refrigerator in a preferred embodiment of the present invention. The refrigerator also includes an ambient temperature sensor 15, a compartment temperature sensor 16, and a door switch detection device 17. The ambient temperature sensor 15 is disposed on the cabinet 11 and is used to collect the current ambient temperature value Te. The compartment temperature sensor 16 is disposed in the storage compartment 12 and is used to collect the compartment temperature Tin of the storage compartment 12. The door switch detection device 17 is disposed on the door of the refrigerator. The door is disposed at the opening of the cabinet 11 and is used to detect whether the door is in an open or closed state.

[0029] The controller 14 is connected to the ambient temperature sensor 15, the room temperature sensor 16 and the door opening / closing detection device 17 respectively. It is used to acquire the current ambient temperature value Te collected by the ambient temperature sensor 15, the room temperature Tin collected by the room temperature sensor 16 and the door status detected by the door opening / closing detection device 17, so as to determine the ambient temperature Te, the cumulative door opening time S and the cumulative door opening temperature difference ΔT under the current adjustment cycle.

[0030] Optionally, the acquisition of ambient temperature, cumulative door opening time, and cumulative door opening temperature difference specifically includes: The ambient temperature sensor collects several ambient temperature values ​​within the current adjustment period, and the average of these values ​​is calculated to obtain the ambient temperature for the current adjustment period. The door opening and closing detection device detects the door status of each storage compartment. When the storage compartment changes from the open state to the closed state, the opening time s is calculated. The compartment temperature Tin1 before opening and Tin2 after closing are collected by the compartment temperature sensor. The temperature difference Δt = Tin2 - Tin1 is calculated. Calculate the sum si of the opening duration s of each storage room within the current adjustment cycle, and sum the sum si of the opening durations of all storage rooms within the current adjustment cycle to obtain the cumulative opening duration S:

[0031] Calculate the sum of the temperature differences Δt and Δti between the storage rooms before and after each door opening and closing within the current adjustment cycle. Summate the sums of Δti for all storage rooms within the current adjustment cycle to obtain the cumulative temperature difference ΔT due to door opening:

[0032] Where i represents the i-th storage room, and n is the total number of all storage rooms.

[0033] Furthermore, based on the ambient temperature Te, the cumulative door opening time S, and the cumulative door opening temperature difference ΔT, the corresponding target ambient temperature coefficient k and target temperature difference coefficient w are determined. The ambient temperature coefficient k is primarily determined based on the current ambient temperature Te, and its maximum value does not exceed 1. The temperature difference coefficient w is primarily determined based on the cumulative door opening temperature difference ΔT and the cumulative door opening time S, and its minimum value is not less than 1. Based on the target ambient temperature coefficient k and the target temperature difference coefficient w, the operating frequency of the compressor is corrected to obtain the target operating frequency F, and the compressor is controlled to operate at the target operating frequency F.

[0034] Using the technical means of this invention, based on big data statistics of refrigerator usage, it is found that the loss of cold air during the process of opening the door to retrieve items is positively correlated with the opening time. Furthermore, the addition of warmer food during the process of placing food in the refrigerator also raises the compartment temperature. Therefore, by monitoring the cumulative change in compartment temperature before and after opening the refrigerator door, the changes in the internal state of the refrigerator can be directly reflected. Combined with the ambient temperature, the compressor's operating frequency can be adjusted in a timely manner. This allows the compressor to operate at a high frequency when food needs rapid cooling and at a low frequency when the user is not using the refrigerator, thus balancing the cooling effect inside the compartment with energy savings, effectively improving the user experience.

[0035] For a preferred embodiment, see Figure 4 This is a flowchart illustrating the operation performed by the refrigerator controller in the second embodiment of the present invention. The present invention further implements the above embodiments. Step S12, namely determining the target ambient temperature coefficient and the target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference, specifically includes steps S121 to S122: S121. Calculate the product of the cumulative door opening time and the cumulative door opening temperature difference to obtain the cumulative temperature change in the current adjustment cycle; S122. Based on the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, determine the ambient temperature coefficient and temperature difference coefficient corresponding to the ambient temperature and cumulative temperature change under the current adjustment cycle, and obtain the target ambient temperature coefficient and target temperature difference coefficient. Among them, in the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, under the same ambient temperature, the cumulative temperature change is positively correlated with both ambient temperature coefficient and temperature difference coefficient; under the same cumulative temperature change, the ambient temperature is positively correlated with the ambient temperature coefficient and negatively correlated with the temperature difference coefficient.

[0036] In this embodiment of the invention, after obtaining the cumulative door opening time S and the cumulative door opening temperature difference ΔT within the current adjustment cycle, the product of the two, ΔT•S, is calculated to obtain the cumulative temperature change. Based on the refrigerator's operating mode, ambient temperature Te, and cumulative temperature change ΔT•S, the target ambient temperature coefficient k and the target temperature difference coefficient w are determined according to the preset algorithm model.

[0037] As an optional implementation, the relationship between the preset ambient temperature, cumulative temperature change, ambient temperature coefficient, and temperature difference coefficient is shown in Table 1: Table 1.

[0038] In the table above, when the cumulative temperature change ΔT·S is the same, the larger the ambient temperature Te, the larger the ambient temperature coefficient k; when the ambient temperature Te is fixed, the larger the cumulative temperature change ΔT·S, the larger the temperature difference coefficient w also tends to be.

[0039] Of course, the values ​​involved in the above scenarios are only one optional implementation method. In practical applications, the corresponding relationship can be determined according to the actual situation to calculate the target ambient temperature coefficient k and the target temperature difference coefficient w. No specific limitation is made here.

[0040] Compared to the prior art where compressor operating parameters are controlled based on actual and set compartment temperatures, this invention, by monitoring temperature changes before and after the refrigerator compartment is opened, directly reflects changes in the refrigerator's internal state during user operation. The cumulative temperature difference ΔT multiplied by the cumulative opening time S considers the cumulative effect of temperature changes. Even if the temperature difference ΔT is small, a large cumulative opening time S results in significant leakage of cold air from the compartment. This effectively reflects the impact of user operation on the refrigerator's cooling capacity, enabling control of the compressor's operation, ensuring effective cooling of the compartment, and reducing energy consumption during actual use.

[0041] For a preferred embodiment, see Figure 5 This is a flowchart illustrating the operation of the refrigerator controller in a third implementation of the present invention. The present invention further implements the above embodiments. Step S13, namely, calculating the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient, specifically includes: Based on the target ambient temperature coefficient, the target temperature difference coefficient, and the maximum and minimum operating frequencies of the compressor, the target operating frequency of the compressor is calculated using the following formula:

[0042] Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

[0043] It should be noted that the maximum operating frequency... and minimum operating frequency These are preset values ​​that can be set according to the actual operating conditions of the refrigerator; no specific limitations are made here.

[0044] In this embodiment of the invention, based on the compressor's maximum operating frequency and minimum operating frequency Based on the determined target ambient temperature coefficient k and target temperature difference coefficient w, the appropriate operating frequency of the compressor is calculated to control the operation of the compressor.

[0045] By using the embodiments of the present invention, the product of the cumulative temperature difference between the room before and after the door is opened and the cumulative duration of the door opening is selected as a characteristic variable. This can quickly and accurately reflect changes in the refrigerator's status and adjust the compressor's operating frequency in a timely manner. When food needs to be cooled quickly, the compressor operates at a high frequency, and when the user does not use the refrigerator, it operates at a low frequency, thereby improving the cooling effect of the storage compartment and reducing energy consumption.

[0046] As a preferred embodiment, the present invention is further implemented based on any of the above embodiments, see [link to previous embodiments]. Figure 6 This is a flowchart illustrating the operation of the refrigerator controller in the fourth embodiment of the present invention. In step S11, that is, before obtaining the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset time period when the refrigerator is in adaptive operation mode, the controller 14 is also used to execute step S10: S10. Receive the user's input operation mode setting instruction; according to the operation mode setting instruction, control the refrigerator to enter the adaptive operation mode or the custom operation mode.

[0047] In an embodiment of the present invention, see Figure 7 This is a schematic diagram illustrating the principle of setting the operating mode in this embodiment of the invention. The refrigerator has two pre-set operating modes: an adaptive operating mode and a custom operating mode. The adaptive mode is the default operating mode. Specifically, in the adaptive operating mode, the controller intelligently adjusts the compressor's operating parameters based on the user's usage habits and the actual operating status of the refrigerator. In the custom operating mode, the controller obtains the sub-operating mode set by the user and operates according to the user's needs, adjusting the compressor's operating mode accordingly.

[0048] In practice, human-machine interaction modules, such as display and control modules, voice modules, or button modules, are set on the refrigerator to obtain the user's operating mode setting instructions. Alternatively, the user's operating mode setting instructions can be obtained through a smart terminal that is pre-paired and connected to the refrigerator, such as an APP on a mobile terminal like a mobile phone or tablet. Then, the operation of the inverter compressor is controlled according to the user's preferred operating mode.

[0049] See Figure 8 This is a schematic diagram illustrating the principle of setting sub-operation modes within a custom operating mode in this embodiment of the invention. The custom operating mode includes three sub-operation modes: performance priority, energy saving priority, and balance. Specifically, in performance priority mode, the refrigerator cools rapidly, food cools quickly, and temperature fluctuations are small, but energy consumption is high; in energy saving priority mode, the refrigerator consumes less energy, but food cools more slowly; in balance mode, the refrigerator balances cooling performance and energy consumption. After selecting a custom operating mode, the user can switch between the three sub-operation modes according to their preferences.

[0050] See also Figure 9 This is a flowchart illustrating the operation of the refrigerator controller in the fifth embodiment of the present invention. The controller 14 is further used to execute steps S21 to S23: S21. When the refrigerator is in a custom operating mode, obtain the current ambient temperature; S22. Determine the target ambient temperature coefficient and the target temperature difference coefficient based on the ambient temperature and the sub-operation mode selected by the user in the operation mode setting instruction; S23. Calculate the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient, and control the compressor to operate at the target operating frequency.

[0051] In this embodiment of the invention, when the refrigerator is in a custom operating mode, the current ambient temperature Te can be collected by the ambient temperature sensor 15 with a preset time period t1 as the adjustment cycle. Then, based on the ambient temperature Te and the sub-operating mode selected by the user, the target ambient temperature coefficient k and the target temperature difference coefficient w are determined.

[0052] As an optional implementation method, the ambient temperature coefficient k and temperature difference coefficient w corresponding to different sub-operation modes are shown in Table 2: Table 2

[0053] In the table above, under the same sub-operation mode, the larger the ambient temperature Te, the larger the ambient temperature coefficient k; when the ambient temperature Te is fixed, the temperature difference coefficient w corresponding to performance priority is larger.

[0054] Of course, the values ​​involved in the above scenarios are only one possible implementation method. In practical applications, the ambient temperature coefficient k and temperature difference coefficient w in different sub-operation modes can be determined according to the actual situation, and no specific limitation is made here.

[0055] After determining the target ambient temperature coefficient k and the target temperature difference coefficient w, the target operating frequency of the compressor is calculated using the following formula based on the target ambient temperature coefficient, the target temperature difference coefficient, the maximum operating frequency, and the minimum operating frequency of the compressor:

[0056] Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

[0057] By employing the technical means of this invention, the refrigerator can select performance-priority, energy-saving-priority, or balanced operation modes from adaptive operation modes or custom operation modes according to user needs, effectively meeting the actual usage needs of users, providing a more flexible and intelligent refrigerator operation control method, and improving the user experience.

[0058] See Figure 10 This is a flowchart illustrating a refrigerator operation control method according to an embodiment of the present invention. The present invention also provides a refrigerator operation control method applied to a refrigerator, the refrigerator comprising: The box has an internal storage compartment; A compressor, located inside the housing, is used to realize refrigerant circulation; The method includes steps S31 to S33: S31. When the refrigerator is in adaptive operation mode, it obtains the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset time period as the adjustment cycle; wherein, the cumulative door opening time is the cumulative value of the door opening time of all storage compartments under the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperature of all storage compartments before the door is opened and after the door is closed under the current adjustment cycle. S32. Determine the target ambient temperature coefficient and the target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference; S33. Calculate the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient, and control the compressor to operate at the target operating frequency.

[0059] In this embodiment of the invention, when the refrigerator is in adaptive operation mode, a preset duration t1 is used as an adjustment cycle, and the compressor's operating parameters are adjusted once in each adjustment cycle. Specifically, within the current adjustment cycle, the ambient temperature Te, the cumulative door opening time S, and the cumulative door opening temperature difference ΔT are acquired. Based on the ambient temperature Te, the cumulative door opening time S, and the cumulative door opening temperature difference ΔT, the corresponding target ambient temperature coefficient k and target temperature difference coefficient w are determined. The ambient temperature coefficient k is mainly determined based on the current ambient temperature Te, and its maximum value does not exceed 1. The temperature difference coefficient w is mainly determined based on the cumulative door opening temperature difference ΔT and the cumulative door opening time S, and its minimum value is not less than 1. Based on the target ambient temperature coefficient k and the target temperature difference coefficient w, the compressor's operating frequency is corrected to obtain the target operating frequency F, and the compressor is controlled to operate according to the target operating frequency F.

[0060] Using the technical means of this invention, based on big data statistics of refrigerator usage, it is found that the loss of cold air during the process of opening the door to retrieve items is positively correlated with the opening time. Furthermore, the addition of warmer food during the process of placing food in the refrigerator also raises the compartment temperature. Therefore, by monitoring the cumulative change in compartment temperature before and after opening the refrigerator door, the changes in the internal state of the refrigerator can be directly reflected. Combined with the ambient temperature, the compressor's operating frequency can be adjusted in a timely manner. This allows the compressor to operate at a high frequency when food needs rapid cooling and at a low frequency when the user is not using the refrigerator, thus balancing the cooling effect inside the compartment with energy savings, effectively improving the user experience.

[0061] In a preferred embodiment, step S32, namely determining the target ambient temperature coefficient and the target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference, specifically includes: Calculate the product of the cumulative door opening time and the cumulative door opening temperature difference to obtain the cumulative temperature change in the current adjustment cycle; Based on the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, determine the ambient temperature coefficient and temperature difference coefficient corresponding to the ambient temperature and cumulative temperature change under the current adjustment cycle, and obtain the target ambient temperature coefficient and target temperature difference coefficient. Among them, in the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, under the same ambient temperature, the cumulative temperature change is positively correlated with both ambient temperature coefficient and temperature difference coefficient; under the same cumulative temperature change, the ambient temperature is positively correlated with the ambient temperature coefficient and negatively correlated with the temperature difference coefficient.

[0062] In this embodiment of the invention, after obtaining the cumulative door opening time S and the cumulative door opening temperature difference ΔT within the current adjustment cycle, the product of the two, ΔT•S, is calculated to obtain the cumulative temperature change. Based on the refrigerator's operating mode, ambient temperature Te, and cumulative temperature change ΔT•S, the target ambient temperature coefficient k and the target temperature difference coefficient w are determined according to the preset algorithm model.

[0063] Compared to the prior art where compressor operating parameters are controlled based on actual and set compartment temperatures, this invention, by monitoring temperature changes before and after the refrigerator compartment is opened, directly reflects changes in the refrigerator's internal state during user operation. The cumulative temperature difference ΔT multiplied by the cumulative opening time S considers the cumulative effect of temperature changes. Even if the temperature difference ΔT is small, a large cumulative opening time S results in significant leakage of cold air from the compartment. This effectively reflects the impact of user operation on the refrigerator's cooling capacity, enabling control of the compressor's operation, ensuring effective cooling of the compartment, and reducing energy consumption during actual use.

[0064] In a preferred embodiment, step S33, namely calculating the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient, specifically includes: Based on the target ambient temperature coefficient, the target temperature difference coefficient, and the maximum and minimum operating frequencies of the compressor, the target operating frequency of the compressor is calculated using the following formula:

[0065] Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

[0066] By using the embodiments of the present invention, the product of the cumulative temperature difference between the room before and after the door is opened and the cumulative duration of the door opening is selected as a characteristic variable. This can quickly and accurately reflect changes in the refrigerator's status and adjust the compressor's operating frequency in a timely manner. When food needs to be cooled quickly, the compressor operates at a high frequency, and when the user does not use the refrigerator, it operates at a low frequency, thereby improving the cooling effect of the storage compartment and reducing energy consumption.

[0067] In a preferred embodiment, before step S31, i.e., when the refrigerator is in adaptive operation mode and the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference are obtained with a preset time period as the adjustment cycle, the method further includes: Receive user input commands for setting the operating mode; According to the operating mode setting instructions, the refrigerator is controlled to enter either an adaptive operating mode or a custom operating mode.

[0068] Preferably, the custom operating mode includes three sub-operating modes: performance priority, energy saving priority, and balanced; The method further includes: When the refrigerator is in a custom operating mode, obtain the current ambient temperature; Based on the ambient temperature and the sub-operation mode selected by the user in the operation mode setting instruction, determine the target ambient temperature coefficient and the target temperature difference coefficient; Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

[0069] In this embodiment of the invention, when the refrigerator is in a custom operating mode, it can also use a preset duration t1 as the adjustment cycle, collect the current ambient temperature Te through the ambient temperature sensor 15, and then determine the target ambient temperature coefficient k and the target temperature difference coefficient w based on the ambient temperature Te and the sub-operation mode selected by the user. After determining the target ambient temperature coefficient k and the target temperature difference coefficient w, the target operating frequency of the compressor is calculated based on the target ambient temperature coefficient, the target temperature difference coefficient, the maximum operating frequency and the minimum operating frequency of the compressor.

[0070] By employing the technical means of this invention, the refrigerator can select performance-priority, energy-saving-priority, or balanced operation modes from adaptive operation modes or custom operation modes according to user needs, effectively meeting the actual usage needs of users, providing a more flexible and intelligent refrigerator operation control method, and improving the user experience.

[0071] It should be noted that the refrigerator operation control method provided in this embodiment of the invention has the same process steps as the refrigerator controller in the above embodiment. The working principle and beneficial effects of the two are one-to-one, so they will not be described again.

[0072] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0073] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that, include: The container has at least one storage compartment inside. A compressor, located inside the housing, is used to realize refrigerant circulation; Controller, used for: When the refrigerator is in adaptive operation mode, it uses a preset time period as the adjustment cycle to obtain the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference. The cumulative door opening time is the cumulative value of the door opening time of all storage compartments in the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperature of all storage compartments before the door is opened and after the door is closed in the current adjustment cycle. The target ambient temperature coefficient and the target temperature difference coefficient are determined based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference. Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency. The determination of the target ambient temperature coefficient and target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference specifically includes: Calculate the product of the cumulative door opening time and the cumulative door opening temperature difference to obtain the cumulative temperature change in the current adjustment cycle; Based on the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, determine the ambient temperature coefficient and temperature difference coefficient corresponding to the ambient temperature and cumulative temperature change under the current adjustment cycle, and obtain the target ambient temperature coefficient and target temperature difference coefficient. Among them, in the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, under the same ambient temperature, the cumulative temperature change is positively correlated with both ambient temperature coefficient and temperature difference coefficient; under the same cumulative temperature change, the ambient temperature is positively correlated with the ambient temperature coefficient and negatively correlated with the temperature difference coefficient.

2. The refrigerator as described in claim 1, characterized in that, The step of calculating the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient specifically includes: Based on the target ambient temperature coefficient, the target temperature difference coefficient, and the maximum and minimum operating frequencies of the compressor, the target operating frequency of the compressor is calculated using the following formula: Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

3. The refrigerator as described in claim 1, characterized in that, Before acquiring ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset adjustment cycle when the refrigerator is in adaptive operation mode, the controller is further configured to: Receive user input commands for setting the operating mode; According to the operating mode setting instructions, the refrigerator is controlled to enter either an adaptive operating mode or a custom operating mode.

4. The refrigerator as described in claim 3, characterized in that, The custom operating mode includes three sub-operating modes: performance priority, energy saving priority, and balanced; The controller is also used for: When the refrigerator is in a custom operating mode, obtain the current ambient temperature; Based on the ambient temperature and the sub-operation mode selected by the user in the operation mode setting instruction, determine the target ambient temperature coefficient and the target temperature difference coefficient; Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

5. A method for controlling the operation of a refrigerator, characterized in that, The refrigerator includes: The container has at least one storage compartment inside. A compressor, located inside the housing, is used to realize refrigerant circulation; The method includes: When the refrigerator is in adaptive operation mode, it uses a preset time period as the adjustment cycle to obtain the ambient temperature, cumulative door opening time, and cumulative door opening temperature difference. The cumulative door opening time is the cumulative value of the door opening time of all storage compartments in the current adjustment cycle, and the cumulative door opening temperature difference refers to the cumulative value of the difference between the compartment temperature of all storage compartments before the door is opened and after the door is closed in the current adjustment cycle. The target ambient temperature coefficient and the target temperature difference coefficient are determined based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference. Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency. The determination of the target ambient temperature coefficient and target temperature difference coefficient based on the ambient temperature, the cumulative door opening time, and the cumulative door opening temperature difference specifically includes: Calculate the product of the cumulative door opening time and the cumulative door opening temperature difference to obtain the cumulative temperature change in the current adjustment cycle; Based on the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, determine the ambient temperature coefficient and temperature difference coefficient corresponding to the ambient temperature and cumulative temperature change under the current adjustment cycle, and obtain the target ambient temperature coefficient and target temperature difference coefficient. Among them, in the preset correspondence between ambient temperature, cumulative temperature change and ambient temperature coefficient and temperature difference coefficient, under the same ambient temperature, the cumulative temperature change is positively correlated with both ambient temperature coefficient and temperature difference coefficient; under the same cumulative temperature change, the ambient temperature is positively correlated with the ambient temperature coefficient and negatively correlated with the temperature difference coefficient.

6. The refrigerator operation control method as described in claim 5, characterized in that, The step of calculating the target operating frequency of the compressor based on the target ambient temperature coefficient and the target temperature difference coefficient specifically includes: Based on the target ambient temperature coefficient, the target temperature difference coefficient, and the maximum and minimum operating frequencies of the compressor, the target operating frequency of the compressor is calculated using the following formula: Where F is the target operating frequency, k is the target ambient temperature coefficient, and w is the target temperature difference coefficient. This is the compressor's maximum operating frequency. This is the minimum operating frequency of the compressor.

7. The refrigerator operation control method as described in claim 5, characterized in that, Before acquiring ambient temperature, cumulative door opening time, and cumulative door opening temperature difference with a preset adjustment cycle when the refrigerator is in adaptive operation mode, the method further includes: Receive user input commands for setting the operating mode; According to the operating mode setting instructions, the refrigerator is controlled to enter either an adaptive operating mode or a custom operating mode.

8. The refrigerator operation control method as described in claim 7, characterized in that, The custom operating mode includes three sub-operating modes: performance priority, energy saving priority, and balanced; The method further includes: When the refrigerator is in a custom operating mode, obtain the current ambient temperature; Based on the ambient temperature and the sub-operation mode selected by the user in the operation mode setting instruction, determine the target ambient temperature coefficient and the target temperature difference coefficient; Based on the target ambient temperature coefficient and the target temperature difference coefficient, the target operating frequency of the compressor is calculated, and the compressor is controlled to operate at the target operating frequency.

Images