Refrigerating and freezing device, control method therefor and machine-readable storage medium

Abstract

The present application relates to a control method for a refrigerating and freezing device, a machine-readable storage medium and a refrigerating and freezing device. The control method comprises: acquiring a compartment temperature, a preset temperature and a startup point temperature corresponding to the preset temperature of each compartment; and after a silent mode commences and during operation of a compressor and / or a fan at a corresponding preset rotation speed, if the compartment temperature of any compartment is higher than or equal to a corresponding first target temperature, exiting the silent mode, and entering a normal mode, wherein when the refrigerating and freezing device comprises a non-stand-alone temperature-variable compartment, the first target temperature of the non-stand-alone temperature-variable compartment is equal to a corresponding startup point temperature, and the first target temperatures of other compartments are higher than the corresponding startup point temperatures; and when the refrigerating and freezing device does not comprise a non-stand-alone temperature-variable compartment, the first target temperature of each compartment is higher than the corresponding startup point temperature. The control method of the present application can avoid excessive temperature fluctuations of non-stand-alone temperature-variable compartments.

Description

Refrigerator-freezing device, control method thereof, and machine readable storage medium

[0001] The present application claims priority to the Chinese patent application No. 202411375790.1, filed on September 29, 2024, and entitled "Refrigerator-freezing device, control method thereof, and machine readable storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of refrigeration technology, in particular to a refrigerator-freezing device, a control method thereof, and a machine readable storage medium. BACKGROUND

[0003] At present, according to the different structures of the refrigerator, the variable temperature compartment is divided into a non-independent variable temperature compartment and an independent variable temperature compartment. The non-independent variable temperature compartment is generally a variable temperature drawer arranged in the refrigeration compartment, and the cold quantity is transmitted from the refrigeration compartment to the variable temperature drawer through a damper for refrigeration. The independent variable temperature compartment is an independent drawer interval, which has an independent evaporator for refrigeration. When the silent mode is running, the variable temperature interval of the independent variable temperature compartment is -20—5℃; and the non-independent variable temperature compartment is generally -3 to 3℃. During the silent mode running, the temperature rising speed of the non-independent variable temperature compartment is relatively fast. In the existing silent control logic, the types of the variable temperature compartments are not distinguished, which leads to a large fluctuation of the non-independent variable temperature compartment, and easily causes the phenomenon that the user sets below 0℃, but the variable temperature is actually above 0℃, which affects the food preservation degree of the variable temperature drawer and reduces the user experience.

[0004] Any prior art mentioned in the specification does not mean that it is recognized or suggested that the prior art constitutes part of the common general knowledge in any jurisdiction, or can be reasonably expected to be understood, considered relevant and / or combined with other prior art by those skilled in the art. SUMMARY

[0005] The present application provides a refrigerator-freezing device, a control method thereof, and a machine readable storage medium, which can solve any of the above problems, and can solve the problem that the existing silent control logic easily leads to a large fluctuation of the temperature of the non-independent variable temperature compartment.

[0006] The present application provides a control method of a refrigerator-freezing device, comprising:

[0007] obtaining the compartment temperature, the preset temperature, and the startup point temperature corresponding to the preset temperature of each compartment;

[0008] After entering the silence mode, and the compressor and / or the fan run at the corresponding preset rotating speed, if the chamber temperature of any one of the chambers is greater than or equal to the corresponding first target temperature, the silence mode is exited, and the normal mode is entered.

[0009] When the refrigerating and freezing device comprises a non-independent variable-temperature chamber, the first target temperature of the non-independent variable-temperature chamber is equal to the corresponding start-up point temperature; and the first target temperature of the other chambers is greater than the corresponding start-up point temperature.

[0010] When the refrigerating and freezing device does not comprise a non-independent variable-temperature chamber, the first target temperature of each of the chambers is greater than the corresponding start-up point temperature.

[0011] Optionally, the control method further comprises:

[0012] If the silence mode starting condition is met within the silence time period, the control of the refrigeration load is closed to enter the silence mode.

[0013] After the refrigeration load is closed for a preset time length, it is judged whether the refrigeration load starting condition is met: the chamber temperature of any one of the chambers is greater than or equal to the corresponding second target temperature; wherein the second target temperature is less than or equal to the corresponding first target temperature.

[0014] If yes, the control of the refrigeration load is opened, and the control of the compressor and / or the fan is performed at the corresponding preset rotating speed.

[0015] If no, the step of controlling the refrigeration load to be closed is continuously performed.

[0016] Optionally, when the refrigerating and freezing device comprises a non-independent variable-temperature chamber, the second target temperature of the non-independent variable-temperature chamber is equal to the corresponding start-up point temperature, and the second target temperature of the other chambers is greater than or equal to the corresponding start-up point temperature and less than the corresponding first target temperature.

[0017] When the refrigerating and freezing device does not comprise a non-independent variable-temperature chamber, the second target temperature of each of the chambers is greater than or equal to the corresponding start-up point temperature and less than the corresponding first target temperature.

[0018] Optionally, the control method further comprises:

[0019] The start-up point temperature of each of the chambers corresponding to the preset temperature is obtained.

[0020] The silence mode starting condition comprises: the chamber temperature of each of the chambers is less than or equal to the corresponding third target temperature; wherein the third target temperature of each of the chambers is greater than or equal to the corresponding start-up point temperature.

[0021] Optionally, when the refrigeration and freezing device comprises a non-independent variable-temperature compartment, the third target temperature of the non-independent variable-temperature compartment is equal to the corresponding shutdown point temperature, and the third target temperature of the other compartments is greater than or equal to the corresponding shutdown point temperature.

[0022] When the refrigeration and freezing device does not comprise a non-independent variable-temperature compartment, the third target temperature of each compartment is greater than or equal to the corresponding shutdown point temperature.

[0023] Optionally, the control method further comprises:

[0024] acquiring an actual ambient temperature;

[0025] controlling the compressor and / or the fan to operate at a corresponding preset speed according to the actual ambient temperature.

[0026] Optionally, the control method further comprises:

[0027] if the actual ambient temperature is less than or equal to a preset ambient temperature, controlling the compressor to operate at a first compressor speed and / or controlling the fan to operate at a first fan speed;

[0028] if the actual ambient temperature is greater than the preset ambient temperature, controlling the compressor to operate at a second compressor speed and / or controlling the fan to operate at a second fan speed;

[0029] wherein the second compressor speed is greater than the first compressor speed, and the second fan speed is greater than the first fan speed.

[0030] Optionally, the first compressor speed is a compressor speed corresponding to a minimum noise value of the refrigeration and freezing device when only the compressor is operated, and the first compressor speed is within a range of rated compressor speeds; and / or

[0031] the first fan speed is a fan speed corresponding to a minimum noise value of the refrigeration and freezing device when only the fan is operated, and the first fan speed is within a range of rated fan speeds; and / or

[0032] the second compressor speed is another compressor speed corresponding to a minimum noise value of the refrigeration and freezing device when only the compressor is operated; and / or

[0033] the second fan speed is another fan speed corresponding to a minimum noise value of the refrigeration and freezing device when only the fan is operated.

[0034] Optionally, the control method further comprises:

[0035] In response to the start instruction of the mute mode, if the current mode is the normal mode, it is determined whether the first defrosting condition is met;

[0036] If yes, the defrosting mode is entered, and after the defrosting is completed, the normal mode is entered, and when the start condition of the mute mode is met, the mute mode is entered.

[0037] If no, when the start condition of the mute mode is met, the mute mode is entered.

[0038] Optionally, the control method further comprises:

[0039] In response to the exit of the mute time period, it is determined whether the second defrosting condition is met;

[0040] If yes, the defrosting mode is entered, and after the defrosting is completed, the normal mode is entered.

[0041] An embodiment of the present application provides a machine readable storage medium, which stores a machine executable program, and the machine executable program is executed by a processor to implement the control method.

[0042] An embodiment of the present application provides a refrigeration and freezing device, which comprises a controller, the controller comprises a memory, a processor and a machine executable program stored in the memory and running on the processor, and the processor executes the machine executable program to implement the control method.

[0043] In the refrigeration and freezing device and the control method of the refrigeration and freezing device, different mute mode exit temperature points are set according to different structures of the compartments. On the one hand, for the refrigeration and freezing device comprising a non-independent variable temperature compartment, in order to avoid that the temperature of the non-independent variable temperature compartment fluctuates too much, the start temperature point corresponding to the preset temperature is set as the exit temperature point of the mute mode, and when the temperature of the compartment is greater than or equal to the start temperature point corresponding to the preset temperature, the mute mode is exited and the normal mode is run, so that the rotation speed of the compressor and / or the fan is increased, that is, the refrigerating capacity of the non-independent variable temperature compartment is increased, thereby preventing the temperature of the non-independent variable temperature compartment from further increasing. On the other hand, since the other types of compartments are all independent compartments, during the process in which the compressor and / or the fan runs at the corresponding preset rotation speed, even if the temperature of the compartment is greater than the corresponding start temperature point, the temperature rising speed of the compartment will not be too fast. Therefore, the exit temperature point of the mute mode of each independent compartment is greater than the start temperature point of the corresponding compartment, and when the temperature of the compartment is greater than the start temperature point by a certain temperature, the exit condition of the mute mode is met. Through the above setting, the actual running time of the mute mode can be increased, and thus the noise reduction effect in the mute time period can be improved. By using the control method, the use experience of the user can be improved.

[0044] On the other hand, during the preset mute period, defrosting is not performed, so that noise generated by defrosting can be avoided to affect the mute effect. BRIEF DESCRIPTION OF DRAWINGS

[0045] Fig. 1 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0046] Fig. 2 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0047] Fig. 3 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0048] Fig. 4 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0049] Fig. 5 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0050] Fig. 6 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0051] Fig. 7 is a schematic flow chart of a control method of a refrigeration and freezing device according to an embodiment of the present application;

[0052] Fig. 8 is a schematic line frame diagram of a machine readable storage medium according to an embodiment of the present application;

[0053] Fig. 9 is a schematic line frame diagram of a refrigeration and freezing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] The present application will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and any changes in structure, method, or function made by those skilled in the art based on these embodiments are included in the protection scope of the present application.

[0055] The refrigeration and freezing device, the control method of the refrigeration and freezing device, and the machine readable storage medium according to the embodiments of the present application will be described below with reference to Figs. 1 to 9.

[0056] Fig. 1 is a schematic flow chart of a control method of a refrigeration and freezing device 100 according to an embodiment of the present application. As shown in Fig. 1, the present embodiment provides a control method of a refrigeration and freezing device 100, which can include the following steps:

[0057] S100, obtaining the chamber temperature, the preset temperature, and the startup point temperature corresponding to the preset temperature of each chamber; wherein the preset temperature refers to the temperature corresponding to the user set gear.

[0058] S200, after entering the mute mode, and during the process that the compressor 110 and / or the fan 120 run at the corresponding preset rotating speed, if the chamber temperature of any chamber is greater than or equal to the corresponding first target temperature, the mute mode is exited and the normal mode is entered.

[0059] When the refrigerating and freezing device comprises a non-independent variable-temperature chamber, the first target temperature of the non-independent variable-temperature chamber is equal to the corresponding start-up temperature point; and the first target temperature of the other chambers is greater than the corresponding start-up temperature point, in this embodiment, the first target temperature of the other chambers is higher than the corresponding start-up temperature point by a first temperature threshold.

[0060] When the refrigerating and freezing device does not comprise a non-independent variable-temperature chamber, the first target temperature of each chamber is greater than the corresponding start-up temperature point, in this embodiment, the first target temperature of each chamber is higher than the corresponding start-up temperature point by a second temperature threshold.

[0061] In this embodiment, the first temperature threshold and the second temperature threshold can be 3-10℃. For example, the temperature threshold can be any one of 3℃, 4℃, 5℃, 6℃, 7℃, 8℃, 9℃, and 10℃.

[0062] After entering the mute mode, and during the process that the compressor 110 and / or the fan 120 run at the corresponding preset rotating speed, when the mute exit condition "the chamber temperature of any chamber is greater than or equal to the corresponding first target temperature" is met, the mute mode is exited and the normal mode is entered. That is, the first target temperature is the exit temperature point of the mute mode. This embodiment sets different exit temperature points of the mute mode according to different chamber structures.

[0063] On the one hand, for the refrigerating and freezing device comprising a non-independent variable-temperature chamber, in order to avoid excessive temperature fluctuation of the non-independent variable-temperature chamber, the start-up temperature point corresponding to the preset temperature is set as the exit temperature point of the mute mode, when the chamber temperature thereof is greater than or equal to the start-up temperature point corresponding to the preset temperature, the mute mode is exited and the normal mode is run, that is, the rotating speed of the compressor 110 and / or the fan 120 is increased, that is, the refrigerating capacity for the non-independent chamber is increased, so as to prevent the temperature of the non-independent variable-temperature chamber from further increasing.

[0064] On the other hand, since the other types of chambers are all independent chambers, during the process that the compressor 110 and / or the fan 120 run at the corresponding preset rotating speed, even if the chamber temperature thereof is greater than the corresponding start-up temperature point, the temperature rising speed of the chamber will not be too fast. Therefore, the exit temperature point of the mute mode of each independent chamber is greater than the start-up temperature point thereof; when the chamber temperature is greater than the start-up temperature point by a certain temperature, the exit condition of the mute mode is met. Through the above setting, the actual running time of the mute mode can be increased, and thus the noise reduction effect in the mute time period can be ensured.

[0065] In some optional embodiments of the present application, the refrigerator-freezer 100 comprises compartments. The number of compartments in the refrigerator-freezer 100 is two or three or four or more. Preferably, the refrigerator-freezer 100 comprises a refrigeration compartment R, a freezing compartment F and a variable-temperature compartment S.

[0066] As shown in FIG. 2, in some optional embodiments of the present application, the control method of the refrigerator-freezer 100 can further comprise the following steps:

[0067] S301, during the silence time period, if the start condition of the silence mode is met, the control of the refrigeration load is closed to enter the silence mode;

[0068] S302, after the refrigeration load is closed for a preset time length, it is judged whether the start condition of the refrigeration load is met: the compartment temperature of any one compartment is greater than or equal to the corresponding second target temperature; wherein the second target temperature is less than or equal to the corresponding first target temperature; if yes, S303 is executed; if no, S301 is executed, i.e. the step of controlling the refrigeration load to be closed is continued to be executed;

[0069] S303, the refrigeration load is controlled to be opened, and the compressor 110 and / or the fan 120 are controlled to operate at the corresponding preset rotating speed.

[0070] In the present embodiment, when the start instruction of the silence mode is accepted, if the start condition of the silence mode is met, the silence mode is entered for the first time; during the operation of the silence mode, if the compartment temperature of any one compartment is greater than or equal to the corresponding first target temperature, the silence mode is exited and the normal mode is entered; when the start condition of the silence mode is met again, if the current time is still within the silence time period, the silence mode is entered again; if the current time is not within the silence time period, the normal mode is continued to be executed.

[0071] In the present embodiment, the silence mode is divided into two stages. Specifically, first, the refrigeration load is controlled to be closed to reduce the noise. After the refrigeration load is closed for a preset time length, the start and stop of the refrigeration load are controlled according to the second target temperature of each compartment: when the compartment temperature of any one compartment is greater than or equal to the corresponding second target temperature, the refrigeration load is controlled to be opened to enter the second stage of the silence mode to reduce the temperature of the corresponding compartment; otherwise, when the compartment temperature of each compartment is less than the corresponding start temperature, the refrigeration load is controlled to be continuously closed to maintain the silence effect. Thus, when the silence mode is operated, not only the silence effect can be maintained as much as possible, but also the preservation effect can be considered under the silence mode.

[0072] The preset time length can be set as required, and preferably, the preset time length can be 10 min to 3 h, for example, 10 min, 20 min, 0.5 h, 1 h, 2 h, 2.5 h or 3 h. The refrigeration load includes the compressor 110, the fan 120, the damper and the electromagnetic valve. The step of controlling the refrigeration load to be closed specifically includes: controlling the compressor 110 and the fan 120 to be stopped, the damper to be closed and the electromagnetic valve to be reset. The step of controlling the refrigeration load to be started specifically includes: controlling the compressor 110 and the fan 120 to be started, the damper and the electromagnetic valve to be opened.

[0073] In some optional embodiments of the present application, the start condition of the refrigeration load includes that the chamber temperature of any one of the chambers is greater than or equal to the corresponding start temperature. That is, the start temperature of each chamber is taken as the second target temperature. In this embodiment, after the refrigeration load is closed for the preset time length, the start and stop of the refrigeration load are controlled according to the start temperature of each chamber, so that the quiet effect can be maintained as much as possible, and the preservation effect can also be taken into account.

[0074] In some optional embodiments of the present application, when the refrigerating-freezing device includes a non-independent variable-temperature chamber, the second target temperature of the non-independent variable-temperature chamber is equal to the corresponding start temperature, and the second target temperature of the other chambers is greater than the corresponding start temperature and less than the corresponding first target temperature.

[0075] In order to avoid that the temperature of the non-independent variable-temperature chamber fluctuates too much, the start temperature corresponding to the preset temperature is taken as the second target temperature, and when the chamber temperature is greater than or equal to the start temperature corresponding to the preset temperature, the refrigeration load is started to start refrigeration.

[0076] On the other hand, since the other types of chambers are independent chambers, the second target temperature of each independent chamber is greater than the start temperature thereof; and the refrigeration load is started only when the chamber temperature is greater than the start temperature by a certain temperature. Through the above setting, the noise reduction effect can be improved.

[0077] In some optional embodiments of the present application, when the refrigerating-freezing device does not include a non-independent variable-temperature chamber, the second target temperature of each chamber is greater than the corresponding start temperature and less than the corresponding first target temperature.

[0078] In some optional embodiments of the present application, the control method of the refrigerating-freezing device can further include the following step: S400, acquiring the shutdown temperature corresponding to the preset temperature of each chamber.

[0079] The start condition of the quiet mode includes that the chamber temperature of each chamber is less than or equal to the corresponding third target temperature. The third target temperature of each chamber is greater than or equal to the corresponding shutdown temperature.

[0080] In the embodiment, when the temperature of each compartment is less than or equal to the third target temperature, the re-entry into the silent mode can not only ensure the preservation effect in the silent mode, but also avoid the delay of the running time length of the silent mode, thereby avoiding the noise caused by the frequent start and stop of the refrigeration load in the silent time period, and improving the overall silent effect in the silent time period.

[0081] In some optional embodiments of the present application, when the refrigerating-freezing device includes the non-independent variable-temperature compartment, the third target temperature of the non-independent variable-temperature compartment is equal to the corresponding shutdown point temperature, and the third target temperature of each of the other compartments is greater than the corresponding shutdown point temperature, for example, the third target temperature of each of the other compartments is equal to the corresponding preset temperature. In some alternative embodiments, the third target temperature of each of the other compartments is equal to the corresponding shutdown point temperature.

[0082] In the embodiment, for the non-independent variable-temperature compartment, the shutdown point temperature is taken as the third target temperature, which can avoid the rapid rise of the temperature of the compartment to the second target temperature.

[0083] In some optional embodiments of the present application, when the refrigerating-freezing device does not include the non-independent variable-temperature compartment, the third target temperature of each compartment is greater than the corresponding shutdown point temperature.

[0084] In some optional embodiments of the present application, when the refrigerating-freezing device does not include the non-independent variable-temperature compartment, the third target temperature of each compartment is equal to the corresponding preset temperature.

[0085] In some optional embodiments of the present application, when the refrigerating-freezing device includes the non-independent variable-temperature compartment, the third target temperature of each compartment is equal to the corresponding preset temperature.

[0086] As shown in FIG. 3, in some optional embodiments of the present application, in step S303, the compressor 110 and / or the fan 120 are controlled to operate at the corresponding preset speed, which includes:

[0087] S3031, obtaining an actual environment temperature;

[0088] S3032, controlling the compressor 110 and / or the fan 120 to operate at the corresponding preset speed according to the actual environment temperature.

[0089] In the second stage of the silent mode, the compressor 110 and / or the fan 120 are controlled to operate at the corresponding preset speed according to the actual environment temperature, which can better balance the silent effect and the preservation effect.

[0090] As shown in FIG. 4, in some optional embodiments of the present application, step S3032 specifically includes the following steps:

[0091] S501, if the actual ambient temperature is less than or equal to the preset ambient temperature, controlling the compressor 110 to execute a first compressor speed, and / or, controlling the fan 120 to execute a first fan speed;

[0092] S502, if the actual ambient temperature is greater than the preset ambient temperature, controlling the compressor 110 to execute a second compressor speed, and / or, controlling the fan 120 to execute a second fan speed;

[0093] Wherein, the second compressor speed is greater than the first compressor speed, and the second fan speed is greater than the first fan speed.

[0094] In the embodiment, when the actual ambient temperature ≤ the preset ambient temperature, S501 is executed. Step S501 includes the following three cases: ① controlling the compressor 110 to execute the first compressor speed. ② controlling the fan 120 to execute the first fan speed. ③ controlling the compressor 110 to execute the first compressor speed, and controlling the fan 120 to execute the first fan speed. When the actual ambient temperature > the preset ambient temperature, step S502 is executed. Step S502 includes the following three cases: ① controlling the compressor 110 to execute the second compressor speed. ② controlling the fan 120 to execute the second fan speed. ③ controlling the compressor 110 to execute the second compressor speed, and controlling the fan 120 to execute the second fan speed. The preset ambient temperature can be set as needed, preferably, the preset ambient temperature is 20-45℃, for example, 20℃, 25℃, 30℃, 35℃, 40℃ or 45℃. More preferably, the preset ambient temperature is 32℃. In the embodiment, when the actual ambient temperature is high, relatively high compressor speed and / or fan speed are adopted, which can better balance the refrigeration effect while reducing noise.

[0095] In some alternative embodiments of the present application, in step S501, the first compressor speed is the compressor speed corresponding to the minimum noise value of the refrigeration-freezing device 100 when only the compressor 110 is running, wherein the first compressor speed is within the rated compressor speed range. In some alternative embodiments, the first compressor speed can also be the lower limit value of the rated compressor speed range.

[0096] In the embodiment, the first compressor speed is preset on the controller of the refrigeration-freezing device 100.

[0097] The method for obtaining the first compressor speed can include the following steps: obtaining a plurality of compressor speed values within the rated compressor speed range; obtaining the noise value of the refrigeration-freezing device 100 when the compressor 110 runs at each of the above-mentioned compressor speed values under the use condition that the refrigeration-freezing device 100 only runs the compressor 110 and does not run the fan 120, to obtain a plurality of noise values; and taking the compressor speed value corresponding to the minimum noise value in the plurality of noise values as the first compressor speed.

[0098] The noise of the refrigerator-freezer 100 is affected by multiple factors, and the compressor 110 is the main source of noise. However, the compressor speed is not positively correlated with the noise of the refrigerator-freezer 100, that is, the smaller the compressor speed, the noise of the refrigerator-freezer 100 is not necessarily smaller. Therefore, when the actual ambient temperature is less than or equal to the preset ambient temperature, the compressor speed with the minimum noise value is executed, which can further improve the mute effect.

[0099] Further, the first fan speed can be set according to the first compressor speed. That is, the fan speed is associated with the compressor speed, and generally the fan speed is low when the compressor speed is low.

[0100] In some optional embodiments of the present application, in step S501, the first fan speed is the fan speed corresponding to the minimum noise value of the refrigerator-freezer 100 when only the fan 120 is running, and the first fan speed is within the rated fan speed range. In some optional embodiments, the first fan speed is the lower limit value of the rated fan speed range.

[0101] The method for obtaining the first fan speed can include the following steps: obtaining a plurality of fan speed values within the rated fan speed range; obtaining the noise value of the refrigerator-freezer 100 when the fan 120 runs at each of the above fan speed values under the use condition that only the fan 120 runs and the compressor 110 does not run, to obtain a plurality of noise values; and taking the fan speed value corresponding to the minimum noise value in the plurality of noise values as the first fan speed.

[0102] The noise of the refrigerator-freezer 100 is affected by multiple factors, and the fan 120 is the main source of noise. However, the fan speed is not positively correlated with the noise of the refrigerator-freezer 100, that is, the smaller the fan speed, the noise of the refrigerator-freezer 100 is not necessarily smaller. Since the noise value of the fan 120 is the smallest when the first fan speed is executed, when the actual ambient temperature is less than or equal to the preset ambient temperature, the fan speed with the minimum noise value is executed, which can further improve the mute effect.

[0103] In the present embodiment, the first compressor speed can be set according to the first fan speed. That is, the compressor speed is associated with the fan speed, and generally the compressor speed is low when the fan speed is low, and vice versa.

[0104] In some optional embodiments of the present application, the first compressor speed is a compressor speed corresponding to a minimum noise value of the refrigerating and freezing device 100 when only the compressor 110 is running, and the first compressor speed is within the rated compressor speed range. The first fan speed is a fan speed corresponding to a minimum noise value of the refrigerating and freezing device 100 when only the fan 120 is running, and the first fan speed is within the rated fan speed range. When the actual ambient temperature is less than or equal to the preset ambient temperature, the fan speed corresponding to the minimum noise value and the compressor speed corresponding to the minimum noise value are executed, which can further improve the silence effect.

[0105] In some optional embodiments of the present application, the second compressor speed is another compressor speed corresponding to a minimum noise value of the refrigerating and freezing device when only the compressor 110 is running, and the second compressor speed is within the rated compressor speed range. This embodiment can further improve the noise reduction effect, so that the user has a better silence experience.

[0106] In this embodiment, the method for obtaining the first compressor speed and the second compressor speed can include the following steps: obtaining a plurality of compressor speed values within the rated compressor speed range; obtaining the noise value of the refrigerating and freezing device 100 when the compressor 110 runs at each of the above-mentioned compressor speed values under the use condition that only the compressor 110 is running and the fan 120 is not running, to obtain a plurality of noise values; and taking the two compressor speed values corresponding to the minimum noise value in the plurality of noise values as the first compressor speed and the second compressor speed.

[0107] In some optional embodiments of the present application, the second fan speed is another fan speed corresponding to a minimum noise value of the refrigerating and freezing device when only the fan 120 is running. This embodiment can further improve the noise reduction effect, so that the user has a better silence experience.

[0108] In this embodiment, the method for obtaining the first fan speed and the second fan speed can include the following steps: obtaining a plurality of fan speed values within the rated fan speed range; obtaining the noise value of the refrigerating and freezing device 100 when the fan 120 runs at each of the above-mentioned fan speed values under the use condition that only the fan 120 is running and the compressor 110 is not running, to obtain a plurality of noise values; and taking the two fan speed values corresponding to the minimum noise value in the plurality of noise values as the first fan speed and the second fan speed.

[0109] In some optional embodiments of the present application, the first compressor speed and the second compressor speed are two compressor speeds corresponding to a minimum noise value of the refrigerating and freezing device when only the compressor 110 is running. The first fan speed and the second fan speed are two fan speeds corresponding to a minimum noise value of the refrigerating and freezing device when only the fan 120 is running. This embodiment can further improve the noise reduction effect, so that the user has a better silence experience.

[0110] As shown in FIG. 5, in some optional embodiments of the present application, the control method of the refrigerator-freezer can include the following steps:

[0111] S1, receiving a start instruction of the silent mode.

[0112] S2, obtaining the chamber temperature, the preset temperature, the start point temperature and the shutdown point temperature of each chamber.

[0113] S3, judging whether the start condition of the silent mode is met: the chamber temperature of each chamber is less than or equal to the corresponding third target temperature; if yes, executing S4; if no, executing S3.

[0114] S4, controlling the refrigeration load to be turned off to enter the silent mode; after the refrigeration load is turned off for a preset time length, executing S5.

[0115] S5, judging whether the start condition of the refrigeration load is met: the chamber temperature of any one chamber is greater than or equal to the corresponding second target temperature; if yes, executing S6; if no, executing S4.

[0116] S6, controlling the refrigeration load to be turned on;

[0117] S7, obtaining the actual ambient temperature;

[0118] S8, judging whether the actual ambient temperature is less than or equal to the preset ambient temperature; if yes, executing S9; if no, executing S10;

[0119] S9, controlling the compressor 110 to execute the first compressor speed and the fan 120 to execute the first fan speed;

[0120] S10, controlling the compressor 110 to execute the second compressor speed and the fan 120 to execute the second fan speed; wherein the second compressor speed > the first compressor speed, and the second fan speed > the first fan speed;

[0121] S11, judging whether the exit condition of the silent mode is met: the chamber temperature of any one chamber is greater than or equal to the corresponding first target temperature; if yes, executing S12; if no, executing S7;

[0122] S12, controlling the refrigerator-freezer to exit the silent mode and run in the normal mode; when the chamber temperature of each chamber is less than or equal to the corresponding third target temperature, executing S13;

[0123] S13, judging whether the current time is within the silent time period; if yes, executing S4; if no, executing S14;

[0124] S14, controlling the refrigerator-freezer to continue running in the normal mode.

[0125] By using the control method of the embodiment, on the one hand, the mute effect and the effective mute time length can be significantly improved; on the other hand, the preservation effect can be well considered.

[0126] In some optional embodiments of the present application, the refrigeration and freezing device 100 can be a refrigerator, a beverage refrigeration cabinet, a fresh food cabinet, or a refrigerator, etc.

[0127] As shown in FIG. 6, in some optional embodiments of the present application, the control method of the refrigeration and freezing device can further include the following steps:

[0128] S601, when the start instruction of the mute mode is received, if the current mode is the normal mode, it is determined whether the first defrosting condition is met; if yes, S602 is executed; if no, S603 is executed;

[0129] S602, entering the defrosting mode, and after the defrosting is completed, entering the normal mode, and when the start condition of the mute mode is met, entering the mute mode;

[0130] S603, continuing to execute the normal mode, and when the start condition of the mute mode is met, entering the mute mode.

[0131] When the refrigeration and freezing device runs in the mute mode, the compressor 110 and the fan 120 run at a low speed, which results in a high probability of frosting on the surface of the evaporator. If the mute mode runs for a long time, the surface of the evaporator can be seriously frosted, which affects the refrigeration efficiency of the refrigeration and freezing device; or even causes the drain of the refrigeration and freezing device to be blocked due to the icing of condensed water, which affects the normal operation of the refrigeration and freezing device and reduces the user experience. In order to solve the above problems, in the embodiment, before entering the mute mode for the first time, it is determined whether defrosting is needed; if defrosting is needed, the corresponding defrosting operation is performed before entering the mute mode for the first time, which can avoid the frosting of the evaporator after the mute mode is ended, which affects the subsequent operation of the normal mode, and achieves the purpose of improving the user experience. In addition, during the mute time period, defrosting is not performed, which can avoid the noise generated by defrosting from affecting the mute effect.

[0132] As shown in FIG. 7, in some optional embodiments of the present application, the control method of the refrigeration and freezing device can further include the following steps:

[0133] S701, when the mute time period is exited, it is determined whether the second defrosting condition is met; if yes, S702 is executed; if no, S703 is executed;

[0134] S702, entering the defrosting mode, and after the defrosting is completed, entering the normal mode;

[0135] S703, entering the normal mode.

[0136] The embodiment judges whether defrosting is needed after completely exiting the mute mode; if defrosting is needed, corresponding defrosting operation is performed after completely exiting the mute mode, which can avoid that the evaporator is seriously frosted after the mute mode ends, thereby affecting the subsequent normal mode operation, and the purpose of improving the user experience is achieved.

[0137] In some optional embodiments of the present application, defrosting judgment can be performed before entering the mute mode for the first time and after completely exiting the mute mode; if the defrosting requirement is met, corresponding defrosting operation can be performed. Compared with the previous two embodiments, the present embodiment can better avoid the problem of serious frosting of the evaporator.

[0138] In some optional embodiments of the present application, the first defrosting condition includes at least one of the following conditions: the first time interval is greater than or equal to the first preset time length; the frosting amount of the evaporator is greater than or equal to the first set frosting amount. In the present embodiment, the first time interval is the time interval from the time when the mute mode starting instruction is received to the last defrosting. In the present embodiment, the frosting amount of the evaporator surface is obtained by the camera probe. The camera probe can be a camera or an infrared camera. The first preset time length can be set according to the specific model of the refrigeration and freezing device 100. Alternatively, the first preset time length can be 8-10h (for example, 8h, 8.5h, 9h, 9.5h or 10h).

[0139] When the above two conditions are used as the first defrosting condition, the false judgment can be reduced, thereby improving the control accuracy.

[0140] In some optional embodiments of the present application, the second defrosting condition can include at least one of the following conditions:

[0141] The actual running time length of the mute mode is greater than or equal to the second preset time length;

[0142] The second time interval is greater than or equal to the third time length; wherein the second time interval is the time interval from the time when the mute time period is exited to the last defrosting;

[0143] The frosting amount of the evaporator is greater than or equal to the second set frosting amount.

[0144] In the present embodiment, when at least one of the above conditions is met, the second defrosting condition is met. The second set frosting amount is greater than the first preset frosting amount. The second preset time length can be set according to the model of the refrigeration and freezing device 100; alternatively, the second preset time length can be 3-5h (for example, 3h, 3.5h, 4h, 4.5h or 5h); preferably, the second preset time length is 4h. The third time length is greater than the first preset time length.

[0145] In some optional embodiments of the present application, the control method of the refrigerating-freezing device further comprises: when the start instruction of the silent mode is received, if the refrigerating-freezing device is currently in the defrosting mode, entering the normal mode after the defrosting mode ends, and then entering the silent mode when the start condition of the silent mode is met.

[0146] In some optional embodiments of the present application, when the refrigerating-freezing device comprises a separate variable temperature chamber, the separate variable temperature chamber can be divided into the following usage scenarios: the user sets the variable temperature interval to 1-5℃, the user sets the variable temperature interval to -7-0℃, the user sets the variable temperature interval to -17--14℃, and the user sets the variable temperature interval to -20--18℃.

[0147] Fig. 8 is a schematic diagram of a machine readable storage medium 200 according to an embodiment of the present application. As shown in Fig. 8, the embodiment of the present application further provides a machine readable storage medium 200, which stores a machine executable program 201. The machine executable program 201 is executed by the processor 132, and realizes the control method of the refrigerating-freezing device 100 according to any of the above embodiments.

[0148] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a list of executable instructions for implementing logical functions and can be specifically embodied in any machine readable storage medium 200 for use by or in connection with an instruction execution system, apparatus or device, such as a computer-based system, a system that includes the processor 132, or other system that can fetch the instructions from the instruction execution system, apparatus or device and execute the instructions.

[0149] For the description of the present embodiment, the machine readable storage medium 200 can be any device that can contain a program stored, communicated, propagated or transmitted for use by or in connection with an instruction execution system, apparatus or device, or in conjunction with these instruction execution systems, apparatus or devices. More specific examples (non-exhaustive list) of the machine readable storage medium 200 include the following: electrical connections having one or more wires (electronic devices), portable computer disk boxes (magnetic devices), random access memories 131 (RAM), read-only memories 131 (ROM), erasable programmable read-only memories 131 (EPROM or flash memories 131), optical fiber devices, and portable compact disc read-only memories 131 (CDROM). In addition, the machine readable storage medium 200 can even be paper or other suitable medium on which the program can be printed, because the program can be electronically obtained, for example, by optical scanning of the paper or other medium, followed by editing, interpretation or processing as necessary, and then stored in the memory 131.

[0150] Figure 9 is a schematic diagram of a refrigeration appliance 100 according to an embodiment of the application. As shown in Figure 9, the embodiment of the application also provides a refrigeration appliance 100 comprising a controller 130. The controller 130 comprises a memory 131, a processor 132 and a machine executable program 201 stored on the memory 131 and running on the processor 132, and the processor 132 implements the control method of the refrigeration appliance 100 according to any of the embodiments described above when executing the machine executable program 201.

[0151] In the present embodiment, the controller 130 can comprise a processor 132 adapted to execute stored instructions, and a memory 131 to provide temporary storage of operation space for the instructions during operation. The processor 132 can be a single core processor 132, a multi core processor 132, a compute cluster, or any number of other configurations. The memory 131 can include random access memory 131 (RAM), read only memory 131 (ROM), flash memory, or any other suitable memory systems.

[0152] The processor 132 can be connected through a system interconnect (e.g., a PCI, a PCI-Express, etc.) to an I / O interface adapted to connect the refrigeration appliance 100 to one or more I / O devices (input / output devices). The I / O devices can include, for example, a keyboard and a pointing device, wherein the pointing device can include a touchpad or a touchscreen, etc.

[0153] The processor 132 can also be linked through the system interconnect to a display interface adapted to connect the controller 130 to a display device. The display device can include a display screen as a built-in component of the controller 130. The display device can also include a computer monitor, a television, or a projector, etc. externally connected to the refrigeration appliance 100. In addition, a network interface controller (NIC) can be adapted to connect the controller 130 to a network through the system interconnect. In some embodiments, the NIC can use any suitable interface or protocol (such as Internet Small Computer System Interface, etc.) to transfer data. The network can be a cellular network, a radio network, a wide area network (WAN), a local area network (LAN), or the Internet, etc. Remote devices can be connected to the controller 130 through the network.

[0154] It should be understood that although the present specification is made in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0155] The above detailed description set forth above in connection with the appended drawings is merely a description of the presently preferred embodiments of the application, and is not intended to limit the scope of the application to relinquish equivalents of the presently preferred embodiments.

Claims

1. A control method of a refrigerating-freezing appliance, characterized in that, The method comprises: obtaining the chamber temperature, preset temperature and start-up point temperature corresponding to the preset temperature of each chamber; after entering the silent mode and during the process that the compressor and / or fan run at the corresponding preset speed, if the chamber temperature of any one of the chambers is greater than or equal to the corresponding first target temperature, the silent mode is exited and the normal mode is entered; wherein, when the refrigeration and freezing device comprises a non-independent variable temperature chamber, the first target temperature of the non-independent variable temperature chamber is equal to the corresponding start-up point temperature; and the first target temperature of the other chambers is greater than the corresponding start-up point temperature; when the refrigeration and freezing device does not comprise a non-independent variable temperature chamber, the first target temperature of each chamber is greater than the corresponding start-up point temperature.

2. The control method according to claim 1, characterized by, The method further comprises: during the silent time period, if the starting condition of the silent mode is met, the refrigeration load is controlled to be turned off to enter the silent mode; after the refrigeration load is turned off for a preset time length, it is determined whether the starting condition of the refrigeration load is met: the chamber temperature of any one of the chambers is greater than or equal to the corresponding second target temperature; wherein, the second target temperature is less than or equal to the corresponding first target temperature; if yes, the refrigeration load is controlled to be turned on, and the compressor and / or fan are controlled to run at the corresponding preset speed; if no, the step of controlling the refrigeration load to be turned off is continuously performed.

3. The control method according to claim 2, wherein, when the refrigeration and freezing device comprises a non-independent variable temperature chamber, the second target temperature of the non-independent variable temperature chamber is equal to the corresponding start-up point temperature, and the second target temperature of the other chambers is greater than or equal to the corresponding start-up point temperature and less than the corresponding first target temperature; when the refrigeration and freezing device does not comprise a non-independent variable temperature chamber, the second target temperature of each chamber is greater than or equal to the corresponding start-up point temperature and less than the corresponding first target temperature.

4. The control method according to claim 2, characterized by, The method further comprises: obtaining the shut-down point temperature corresponding to the preset temperature of each chamber; the starting condition of the silent mode comprises: the chamber temperature of each chamber is less than or equal to the corresponding third target temperature; wherein, the third target temperature of each chamber is greater than or equal to the corresponding shut-down point temperature.

5. The control method according to claim 4, wherein, when the refrigeration and freezing device comprises a non-independent variable temperature chamber, the third target temperature of the non-independent variable temperature chamber is equal to the corresponding shut-down point temperature, and the third target temperature of the other chambers is greater than or equal to the corresponding shut-down point temperature; when the refrigeration and freezing device does not comprise a non-independent variable temperature chamber, the third target temperature of each chamber is greater than or equal to the corresponding shut-down point temperature.

6. The control method according to claim 2, characterized by the step of controlling the compressor and / or fan to run at the corresponding preset speed comprises: obtaining the actual environment temperature; controlling the compressor and / or fan to run at the corresponding preset speed according to the actual environment temperature.

7. The control method according to claim 6, characterized by the step of controlling the compressor and / or fan to run at the corresponding preset speed according to the actual environment temperature comprises: if the actual ambient temperature is less than or equal to the preset ambient temperature, controlling the compressor to execute a first compressor speed, and / or, controlling the fan to execute a first fan speed; if the actual ambient temperature is greater than the preset ambient temperature, controlling the compressor to execute a second compressor speed, and / or, controlling the fan to execute a second fan speed; wherein the second compressor speed is greater than the first compressor speed, and the second fan speed is greater than the first fan speed.

8. The control method according to claim 7, wherein the first compressor speed is a compressor speed corresponding to a minimum noise value of the refrigeration and freezing device when only the compressor is running, and the first compressor speed is within a range of rated compressor speeds; and / or the first fan speed is a fan speed corresponding to a minimum noise value of the refrigeration and freezing device when only the fan is running, and the first fan speed is within a range of rated fan speeds; and / or the second compressor speed is another compressor speed corresponding to a minimum noise value of the refrigeration and freezing device when only the compressor is running; and / or the second fan speed is another fan speed corresponding to a minimum noise value of the refrigeration and freezing device when only the fan is running. Further comprising: in response to a starting instruction of the silent mode, if currently in the normal mode, determining whether a first defrosting condition is met; if yes, entering the defrosting mode, and after the defrosting ends, entering the normal mode, and when the starting condition of the silent mode is met, entering the silent mode; if no, when the starting condition of the silent mode is met, entering the silent mode. Further comprising:

9. The control method according to claim 1, characterized by, in response to exiting the silent time period, determining whether a second defrosting condition is met; if yes, entering the defrosting mode, and after the defrosting ends, entering the normal mode. A machine readable storage medium having stored thereon a machine executable program, which when executed by a processor, implements the control method according to any one of claims 1 to 10. A controller comprising a memory, a processor, and a machine executable program stored on the memory and running on the processor, and when the processor executes the machine executable program, implements the control method according to any one of claims 1 to 10.

10. The control method according to claim 1 or 9, characterized by, ​ ​ ​ 11. A machine-readable storage medium, characterized in that, ​ 12. A cold appliance, characterized in ​

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