Refrigerator defrosting control method and device and storage medium

Abstract

The invention provides a refrigerator defrosting control method and device and a storage medium. The method comprises the steps that whether at least a freezing chamber meets the defrosting condition or not is judged; if yes, the refrigeration chamber and the freezing chamber are controlled to execute pre-cooling operation, and the first equipment is controlled to execute first operation after the pre-cooling operation is completed; obtaining a detection temperature corresponding to the first operation, and controlling the first equipment to execute a second operation according to the detection temperature, the second operation is used for achieving the preset defrosting target, and the first target temperature corresponding to the pre-cooling operation is lower than the second target temperature set by the preset defrosting target. According to the method, the defrosting process is divided into the first operation stage and the second operation stage, dynamic adjustment can be conducted according to real-time detection temperature feedback, the defrosting efficiency and accuracy are improved through the staged operation mode, the defrosting process is more flexible and efficient, and the defrosting efficiency is improved. And adverse effects of excessive defrosting or insufficient defrosting on the freshness and taste of the food are avoided.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a refrigerator defrosting control method, device and storage medium. Background Art

[0002] In the field of modern household appliances, refrigerators are one of the indispensable appliances in family life. The effective control of their defrosting process will directly affect the performance of the refrigerator. However, in the key maintenance process of defrosting, the existing technology generally uses the method of continuous heating of the heating wire to defrost. Although this method is direct and effective, it has significant shortcomings.

[0003] First, the continuous heating of the heating wire cannot be dynamically adjusted according to the thickness of the frost layer and the defrosting process, resulting in excessive temperature rise in the compartment during the defrosting process, increasing the amplitude of temperature fluctuations in the compartment, which in turn affects the food safety and storage time. Secondly, due to the lack of an effective feedback adjustment medium, the defrosting process is often difficult to achieve optimal efficiency, and there are problems such as incomplete defrosting or excessive defrosting, which not only affects the performance of the refrigerator, but also increases energy consumption and reduces user experience. Summary of the invention

[0004] One of the purposes of the present invention is to provide a refrigerator defrosting control method to solve the technical problem that the prior art adopts a single mode of continuous heating by a heating wire during the defrosting process, lacks an operation for dynamic adjustment based on real-time feedback, and causes large fluctuations in the temperature of the refrigerator compartment.

[0005] One of the objects of the present invention is to provide a refrigeration device.

[0006] One of the objects of the present invention is to provide a computer storage medium.

[0007] In order to achieve one of the above-mentioned invention purposes, the present invention provides a refrigerator defrost control method, comprising: judging whether at least a freezer compartment meets the defrost conditions; if so, controlling the refrigeration compartment and the freezer compartment to perform a precooling operation, and controlling a first device to perform a first operation after the precooling operation is completed; wherein the first device comprises at least one of a compressor, a heating wire, a fan, a damper and a reversing valve; obtaining and controlling the first device to perform a second operation based on a detected temperature corresponding to the first operation; the second operation is used to achieve a preset defrost target, and the first target temperature corresponding to the precooling operation is lower than the second target temperature set by the preset defrost target.

[0008] As a further improvement of an embodiment of the present invention, controlling the refrigerating compartment and the freezing compartment to perform a precooling operation includes: sequentially controlling the refrigerating compartment and the freezing compartment to perform a precooling operation.

[0009] As a further improvement of an embodiment of the present invention, the sequentially controlling the refrigerating compartment and the freezing compartment to perform a precooling operation includes: judging whether the detected temperature of the refrigerating compartment is greater than the set start-up point temperature or whether the precooling operation duration of the refrigerating compartment is less than the set precooling duration; if so, controlling the compressor to start, and controlling a first action of the reversing valve to connect the compressor to a first pipeline channel of the refrigerating compartment; after the precooling operation of the refrigerating compartment is completed, controlling a second action of the reversing valve to connect the compressor to a second pipeline channel of the freezing compartment.

[0010] As a further improvement of an embodiment of the present invention, the controlling the first device to perform the first operation after the precooling operation is completed includes: after the precooling operation in the freezer compartment is completed, controlling the corresponding refrigeration fan to start working within a first preset time period; after the precooling operation in the refrigeration compartment is completed, controlling the corresponding refrigeration fan to start working within the first preset time period.

[0011] As a further improvement of an embodiment of the present invention, the obtaining and controlling the first device to perform the second operation based on the detected temperature corresponding to the first operation includes: obtaining and determining whether the temperature of the refrigeration compartment is higher than a first preset temperature, or determining whether the working time of the refrigeration fan is greater than or equal to a second preset time; if so, controlling the heating wire of the freezer compartment to perform a defrosting operation after the compressor is shut down for the first preset time.

[0012] As a further improvement of an embodiment of the present invention, the determining whether at least the freezer compartment satisfies the defrosting condition comprises: determining whether the freezer compartment satisfies a first defrosting condition, or determining whether the freezer compartment and the refrigerating compartment simultaneously satisfy a second defrosting condition; wherein the first defrosting condition is determined based on the freezing operation time of the freezer compartment and the accumulated door opening time of the freezer compartment, the second defrosting condition is determined based on the freezer compartment satisfying a third defrosting condition during the defrosting process of the freezer compartment, and the third defrosting condition is determined based on the refrigerating operation time of the refrigerating compartment and the accumulated door opening time of the refrigerating compartment.

[0013] As a further improvement of an embodiment of the present invention, the judging whether at least the freezer compartment meets the defrosting condition comprises: judging whether the freezer compartment meets the first defrosting condition; before controlling the first device to perform the second operation, the method further comprises: counting and judging whether the sum of the pre-cooling time of the freezer compartment and the first preset time is less than the second preset time; if so, controlling the refrigeration fan to continue working until the second preset time and then stopping, and controlling the heating wire of the freezer compartment to perform the defrosting operation.

[0014] As a further improvement of an embodiment of the present invention, the judging whether at least the freezer compartment meets the defrosting condition comprises: judging whether the freezer compartment and the refrigerating compartment simultaneously meet the second defrosting condition; before controlling the first device to perform the second operation, the method further comprises: counting and judging whether the sum of the pre-cooling time of the freezer compartment and the first preset time is less than the second preset time; if so, controlling the refrigerating fan to be forced to stop, and controlling the heating wire of the freezer compartment to perform the defrosting operation.

[0015] As a further improvement of an embodiment of the present invention, the judging whether at least the freezer compartment meets the defrosting condition includes: judging whether the freezer compartment and the refrigerating compartment simultaneously meet the second defrosting condition; after the controlling the first device to perform the second operation, the method further includes: based on the order in which the refrigerating compartment and the freezer compartment complete the defrosting operation, controlling the first device to perform a third operation, the third operation being used to achieve a preset refrigeration target, the detection temperature corresponding to the preset refrigeration target being lower than the detection temperature corresponding to the second operation.

[0016] As a further improvement of an embodiment of the present invention, the controlling the first device to perform the third operation based on the order in which the refrigerating compartment and the freezing compartment complete the defrosting operation includes: determining whether the time for the refrigerating compartment to complete the defrosting operation is less than the time for the freezing compartment to complete the defrosting operation; if so, after the freezing compartment completes the defrosting operation, controlling the compressor to sequentially complete the refrigerating compartment refrigeration and the refrigerating compartment refrigeration after a third preset time period.

[0017] As a further improvement of an embodiment of the present invention, after judging whether the time for completing the defrosting operation of the refrigerating compartment is less than the time for completing the defrosting operation of the freezing compartment, the method further includes: if not, controlling the compressor to complete the refrigerating compartment refrigeration after a third preset time, and judging whether the defrosting operation of the refrigerating compartment is completed; if the defrosting operation of the refrigerating compartment is not completed, controlling the refrigerating compartment to continue to perform the defrosting operation; if the defrosting operation of the refrigerating compartment is completed, controlling the first action of the reversing valve after the first preset time to switch it to the first pipeline channel of the refrigerating compartment.

[0018] As a further improvement of an embodiment of the present invention, the method also includes: determining whether the refrigerated compartment meets the third defrosting condition; if so, determining whether the freezer compartment is in a defrosting period; if the freezer compartment is not in a defrosting period, controlling the first device to perform an air defrosting operation on the refrigerated compartment, and controlling the heating wire of the refrigerated compartment to perform a defrosting operation after a fourth preset time period.

[0019] As a further improvement of an embodiment of the present invention, after determining whether the freezing compartment is in the defrosting period, the method further includes: if the freezing compartment is in the defrosting period, when the freezing compartment is in the first defrosting stage, controlling the heating wire of the refrigerating compartment to perform a defrosting operation; if the freezing compartment is in the defrosting period, when the freezing compartment is in the second defrosting stage, controlling the compressor to perform a refrigerating operation on the refrigerating compartment, and controlling the refrigerating compartment to perform a defrosting operation after completing the refrigerating operation for a preset time.

[0020] To achieve one of the above-mentioned purposes of the invention, the present invention also provides a refrigeration device, comprising: at least one processor; a memory, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps of the refrigerator defrost control method are executed.

[0021] To achieve one of the above-mentioned purposes of the invention, the present invention also provides a computer storage medium, comprising: at least one processor; a memory, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps of the refrigerator defrost control method are executed.

[0022] Compared with the prior art, the embodiments of the present invention have at least one of the following beneficial effects:

[0023] The present invention adopts a refrigerator defrosting control method, which reduces the temperature of the refrigerator through a pre-cooling operation, creates a lower starting point for a subsequent defrosting process, and reduces the rise in the indoor temperature of the refrigerator during the defrosting process, thereby minimizing the adverse effects on food quality; in addition, by dividing the defrosting process into two stages, a first operation and a second operation, dynamic adjustments can be made based on real-time temperature detection feedback. This staged operation method not only improves the efficiency and accuracy of defrosting, but also makes the defrosting process more flexible and efficient, thereby avoiding adverse effects on food freshness and taste caused by excessive or insufficient defrosting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the steps of a refrigerator defrosting control method in one embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure of the dual-system refrigerator pipeline electronic control in one embodiment of the present invention.

[0026] Figure 3 It is a schematic diagram of the steps of a specific embodiment of an embodiment of the present invention.

[0027] Figure 4 2 is a schematic diagram of step S3 in one embodiment of the present invention.

[0028] FIG. 5( a ) is a schematic diagram of a process of defrosting a freezing compartment separately in one embodiment of the present invention.

[0029] FIG. 5( b ) is a timing diagram of the first device when the freezing compartment is defrosted separately in one embodiment of the present invention.

[0030] Figure 6 2 is a schematic diagram of step S4 in one embodiment of the present invention.

[0031] FIG. 7( a ) is a schematic diagram of a process of simultaneously defrosting the refrigerating and freezing compartments in one embodiment of the present invention.

[0032] FIG. 7( b ) is a timing diagram of the first device in the refrigerating compartment completing the defrosting process first when the refrigerating compartment and the freezing compartment are defrosted simultaneously in one embodiment of the present invention.

[0033] FIG. 7( c ) is a timing diagram of the first device in the process of defrosting the freezing compartment first when the refrigerating and freezing compartments are defrosted simultaneously in one embodiment of the present invention.

[0034] Figure 8 It is a schematic diagram of the steps of a method for controlling the individual defrosting of a refrigerator refrigerating compartment in another embodiment of the present invention.

[0035] FIG. 9( a ) is a schematic diagram of a process of defrosting a freezing chamber separately according to an embodiment of the present invention.

[0036] FIG. 9( b ) is a timing diagram of the first device when the freezing chamber is defrosted separately in one embodiment of the present invention.

[0037] Fig.10 A schematic structural diagram of an electronic device in one embodiment of the present invention. DETAILED DESCRIPTION

[0038] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0039] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] like Figure 1 As shown, a refrigerator defrosting control method provided in one embodiment of the present invention includes the following steps.

[0041] Step S1, determining whether at least the freezing compartment meets the defrosting condition;

[0042] If yes, jump to step S2, control the refrigerating compartment and the freezing compartment to perform a precooling operation, and control the first device to perform a first operation after the precooling operation is completed;

[0043] Step S3: acquiring and controlling the first device to perform a second operation according to the detected temperature corresponding to the first operation.

[0044] In this way, the temperature of the refrigerator can be lowered through the pre-cooling operation, creating a lower starting point for the subsequent defrosting process, reducing the increase in the indoor temperature of the refrigerator during the defrosting process, thereby minimizing the adverse effects on food quality; in addition, by dividing the defrosting process into two stages, the first operation and the second operation, it can be dynamically adjusted according to real-time temperature detection feedback. This staged operation method not only improves the efficiency and accuracy of defrosting, but also makes the defrosting process more flexible and efficient, avoiding excessive or insufficient defrosting from adversely affecting the freshness and taste of food.

[0045] In one embodiment, the first device includes at least one of a compressor, a heating wire, a fan, a damper and a reversing valve.

[0046] In one embodiment, the second operation is used to achieve a preset defrosting target, and the first target temperature corresponding to the precooling operation is lower than the second target temperature set by the preset defrosting target. The first target temperature refers to the compartment temperature of the freezer compartment or the refrigeration compartment after the refrigerator performs the precooling operation, and the second target temperature is the compartment temperature of the freezer compartment or the refrigeration compartment when the defrosting condition is met.

[0047] In one embodiment, the refrigerator defrost control method can be applied to a dual-system refrigerator defrost control system. The dual-system refrigerator refers to a refrigerator with two evaporators and two fans, and the refrigerating compartment and the freezing compartment each have an independent evaporator and fan, that is, a refrigerating evaporator and a refrigerating fan of the refrigerating compartment, and a freezing evaporator and a freezing fan of the freezing compartment.

[0048] In a specific embodiment, Figure 2 As described above, in the piping control diagram of the dual-system refrigerator, the reversing valve can brake the flow direction of the refrigerant by controlling the opening direction of the reversing valve according to the preset temperature setting and the current actual detected temperature.

[0049] Continue to refer to Figure 2As shown, the refrigeration system of the dual-system refrigerator includes: a compressor 1, a condenser 2, a cooling fan 3, a drying filter 4, a reversing valve 5, a first capillary tube 6, a second capillary tube 7, a refrigerating evaporator 8, a refrigerating fan 9, a freezing evaporator 10, and a freezing fan 11. Among them, the cooling fan 3 is used to dissipate heat for the condenser 2, the refrigerating fan 9 and the refrigerating evaporator 8 are used for refrigerating the refrigerating chamber, and the freezing fan 11 and the freezing evaporator 10 are used for refrigerating the freezing chamber. A refrigerating heating wire 12 is installed on the refrigerating evaporator 8, and a freezing heating wire 13 is installed on the freezing evaporator 10.

[0050] As shown in Table 1, the reversing valve 5 has four states. The reversing valve 5 is provided with an air inlet a, an air outlet b and a air outlet c. When the reversing valve 5 is in state 1, the freezing compartment is refrigerated; when it is in state 2, the refrigerating compartment is refrigerated; when the compressor 1 is shut down normally, the reversing valve 5 is in state 4; when the freezing compartment is defrosted alone and the freezing compartment and refrigeration compartment are defrosted simultaneously, the reversing valve 5 is in state 3.

[0051] Table 1

[0052] state Conductivity Refrigeration through the compartment Status 1 a→c freezing Status 2 a→b refrigeration State three a→bc (full open) Refrigeration, freezing State 4 All Off /

[0053] Continue to refer to Figure 2 As shown, the refrigerant flows out from the compressor 1, is condensed in the condenser 2, and then enters the reversing valve 5. When the reversing valve 5 is connected to the second capillary tube 7, the refrigerant is guided to the second capillary tube 7 and sequentially enters the refrigerating evaporator 8 and the freezing evaporator 10. Under the cooperation of the refrigerating fan 9 and the freezing fan 11, the air in the refrigerating compartment and the freezing compartment is circulated through their respective evaporators to achieve a refrigeration effect.

[0054] When the reversing valve 5 is connected to the first capillary tube 6, the refrigerant is guided to the first capillary tube 6 and directly enters the freezing evaporator 10. When the refrigeration fan 11 is working, the air in the freezing room is circulated through the freezing evaporator to achieve a refrigeration effect.

[0055] The first operation refers to a specific action performed by the first device when the first detected temperature of the refrigerating compartment after the pre-cooling operation meets the first preset condition; and / or a specific action performed by the first device when the second detected temperature of the freezing compartment after the pre-cooling operation meets the second preset condition, such as starting the compressor, turning on the fan, etc.

[0056] In one embodiment, the second operation is used to achieve a preset defrosting target, and the detection temperature corresponding to the pre-cooling operation is lower than the detection temperature set by the preset defrosting target. In other words, the temperature in the compartment is lowered as much as possible in advance, and then the heating wire is started to perform the defrosting operation.

[0057] Understandably, in a dual-system refrigerator defrosting control system, the freezer compartment can be defrosted individually or together with the refrigerating compartment. Individual defrosting means that at the same time point or within the same period of time, only the freezer compartment meets the defrosting conditions; and together defrosting means that at the same time point or within the same period of time, the refrigerating compartment and the freezer compartment simultaneously meet their respective defrosting conditions.

[0058] The "defrosting condition" in step S1 can be determined based on the operating time of the compartment and the cumulative door opening time of the compartment. In one embodiment, step S1 of the present invention can specifically include the following steps.

[0059] Step S1', determining whether the freezing compartment meets the first defrosting condition, or determining whether the freezing compartment and the refrigerating compartment meet the second defrosting condition at the same time.

[0060] In this way, according to the characteristics of the dual-system refrigerator, different defrosting methods are refined to cover the defrosting operations under different usage conditions. In addition, by accurately judging the defrosting needs of each compartment, unnecessary defrosting operations can be avoided and energy consumption can be reduced.

[0061] The first defrost condition is determined based on the freezing operation time of the freezer compartment and the accumulated door opening time of the freezer compartment, the second defrost condition is determined based on the refrigerating compartment satisfying the third defrost condition during the defrosting process of the freezer compartment, and the third defrost condition is determined based on the refrigerating operation time of the refrigerating compartment and the accumulated door opening time of the refrigerating compartment.

[0062] The operation time refers to the continuous operation time of the compartment (including the refrigerated compartment or the frozen compartment). In the refrigerated compartment, as the operation time increases, the temperature of the evaporator will gradually decrease, and the temperature difference with the surrounding air will increase, causing the water vapor in the air to condense into frost on the surface of the evaporator. Therefore, the operation time can indirectly reflect the degree of frost on the evaporator surface. The longer the operation time, the greater the possibility of frost and the thicker the frost layer may be.

[0063] The cumulative door opening time refers to the total time that the door of the compartment is open. When the door of the compartment is opened, the outside air (including water vapor) will enter the interior of the compartment, increasing the humidity of the internal air. The air with high humidity is more likely to condense into frost when it contacts the evaporator with low temperature. Therefore, the cumulative door opening time can reflect the increase of water vapor humidity in the compartment, which in turn affects the degree of frost on the surface of the evaporator.

[0064] In addition, the ambient temperature of the refrigerator also affects whether to perform defrosting operation. 运行 and different cumulative door opening time t 开门 There are multiple sets of conditions for entering defrost operation in the refrigeration compartment and the freezer compartment.

[0065] For example, as shown in Table 2, in winter, the ambient temperature of the refrigerator is usually less than or equal to 18°C. If the refrigeration operation time of the refrigeration compartment or the freezing operation time of the freezer compartment is t 运行 The cumulative door opening time of the refrigerated compartment or the cumulative door opening time of the frozen compartment is t 开门 is 600 seconds. Based on Table 2, t 运行 is in the range [12h,16h) and satisfies t 开门 ≥540s, then control the refrigeration compartment or freezer compartment to perform defrosting operation; if the cumulative door opening time t 开门 is 500 seconds, which does not satisfy t 开门 ≥540s, then the refrigeration compartment or freezer compartment does not need to be defrosted. Similarly, other conditions are similar and will not be described in detail.

[0066] Table 2

[0067]

[0068] In a specific embodiment, the conditions for the refrigerating compartment and the freezing compartment to enter defrosting can refer to those shown in Table 2.

[0069] The "simultaneous satisfaction of the second defrost condition" in step S1' can be understood as the defrosting process of the freezing compartment can be divided into multiple defrosting stages. If the refrigerating compartment happens to satisfy the third defrosting condition in any defrosting stage, the defrosting operations of the refrigerating compartment and the freezing compartment are controlled according to the defrosting stage of the freezing compartment.

[0070] After the freezer compartment meets the defrosting conditions, the first device is controlled to perform subsequent operations (including precooling operation, first operation and second operation). The precooling operation in step S2 can reduce the temperature of the refrigerating compartment and the freezing compartment to a preset temperature value in advance, creating a more favorable initial condition for the subsequent defrosting process. The precooling operation can minimize the impact of the subsequent defrosting operation on the temperature fluctuation of the refrigerating compartment and the freezing compartment, thereby ensuring the stability of the refrigeration system.

[0071] In daily life, users may frequently open the refrigerator to take out food, so ensuring that it quickly reaches the adaptation temperature can provide a stable storage environment for food, while the freezer is more used for long-term storage, so there are differences in the temperature requirements of the refrigerator and freezer. Based on this, the precooling order of the refrigerator and freezer can be controlled.

[0072] In one embodiment, the refrigerating compartment and the freezing compartment are controlled to perform the precooling operation in sequence. In other words, the refrigerating compartment is controlled to perform the precooling operation first, and then the freezing compartment is controlled to perform the precooling operation.

[0073] In this way, precooling the refrigerator compartment can provide a "buffer period" for precooling the freezer compartment, so that the freezer compartment can gradually adapt to and reach the required low temperature state when precooling again, instead of being suddenly subjected to a strong cooling effect, thereby reducing the temperature fluctuation range. In addition, precooling the refrigerator compartment first can ensure that the food is subjected to the minimum temperature shock during storage, thereby ensuring its freshness and quality.

[0074] Specifically, based on the detected temperature and the refrigeration time, the compressor and the reversing valve may be controlled to perform a pre-cooling operation on the refrigerating compartment and the freezing compartment.

[0075] like Figure 3 As shown, in a specific embodiment, the "controlling the refrigerating compartment and the freezing compartment to perform precooling operation in sequence" specifically includes the following steps.

[0076] Step S211, determining whether the detected temperature of the refrigerating compartment is greater than the set start-up point temperature or whether the precooling operation time of the refrigerating compartment is less than the set precooling time;

[0077] If yes, the process jumps to step S212, controls the compressor to start, and controls the first action of the reversing valve to connect the first pipeline channel to the refrigerated compartment;

[0078] Step S213, after the pre-cooling operation of the refrigerating compartment is completed, the second action of the reversing valve is controlled to switch to the second pipeline channel of the freezing compartment.

[0079] In this way, by controlling the action of the reversing valve, it is helpful to realize the switching of the pre-cooling position of the refrigerating compartment and the freezing compartment, and avoid over-refrigerating the refrigerating compartment when it is already cold enough, thereby avoiding wasting energy.

[0080] The start-up point temperature is a temperature threshold set in the refrigeration equipment (such as a refrigerator); when the detected temperature in the refrigerator compartment reaches or exceeds this temperature threshold, the refrigerator controls the compressor and other refrigeration components to start cooling to lower the temperature in the compartment.

[0081] As shown in Table 1, the first action in step S22 and the second action in step S23 correspond to "state 2" and "state 1", respectively. After the reversing valve is switched to the second pipeline channel of the freezing compartment, the precooling operation is performed on the freezing compartment until the compartment temperature of the freezing compartment is less than the shutdown point temperature or the refrigeration time of the freezing compartment is greater than or equal to the set second precooling time.

[0082] In a specific embodiment, the precooling time in step S21 is 20 minutes (min), the second precooling time is 30 minutes, and the detection temperature of the freezing compartment drops to the shutdown point temperature T 关 -2.

[0083] In one embodiment, it is determined whether the detected temperature of the refrigerated compartment is greater than the refrigeration start-up point temperature; if so, the compressor is controlled to start, and the reversing valve is connected to the refrigerated compartment to refrigerate the refrigerated compartment; and it is counted whether the refrigeration time of the refrigerated compartment is greater than or equal to the set first time.

[0084] In one embodiment, the step S2 of "controlling the first device to perform the first operation after the pre-cooling operation is completed" specifically includes the following steps.

[0085] Step S221, after the precooling operation of the freezing chamber is completed, controlling the corresponding freezing fan to start working within a first preset time;

[0086] Step S222, after the pre-cooling operation of the refrigerating compartment is completed, the corresponding refrigerating fan is controlled to start working within a first preset time period.

[0087] In this way, by controlling the operation of the refrigeration fan and the freezing fan, the discharge of hot air and the entry of cold air in the room can be accelerated, thereby shortening the precooling time and improving the precooling efficiency. In addition, it also helps to blow the cold air generated by precooling to other places, making the temperature of the room more uniform.

[0088] In a specific embodiment, the first preset time length is 5 minutes, and the refrigeration fan and the freezing fan can also operate at a set air ratio by controlling the air damper, for example, operating at an air ratio of 50%.

[0089] like Figure 4 As shown, in one embodiment, step S3 involved in the present invention may specifically include the following steps.

[0090] Step S31, obtaining and determining whether the temperature of the refrigerating compartment is higher than a first preset temperature, or determining whether the working time of the refrigerating fan is greater than or equal to a second preset time;

[0091] If yes, the process jumps to step S32 to control the heating wire of the freezing compartment to perform a defrosting operation after the compressor is stopped for a first preset time.

[0092] In this way, after the compressor stops, the refrigerant in the refrigeration system will still circulate to a certain extent under the action of the pressure difference, generating high and low pressures. By delaying the start of the compressor working time, it helps to give the system enough time to balance the high and low pressures and avoid unstable internal pressure of the system when the heating wire starts.

[0093] In a specific embodiment, the first preset temperature may be the gear temperature T 档 -1, the second preset duration can be 10 minutes.

[0094] Among them, the gear temperature refers to the temperature of the refrigerator compartment and the freezer compartment in the refrigerator controlled by adjusting the temperature control button or button inside the refrigerator. Different gears correspond to different cooling effects. In other words, the gear temperature is used to adjust the threshold set by the refrigeration intensity inside the refrigerator. It can be a single temperature value or a temperature range, and there is no specific limitation on this.

[0095] The above-described embodiment is a "standardized frost control" in which the freezing compartment alone meets the defrosting conditions, and the freezing compartment and the refrigerating compartment meet the defrosting conditions at the same time.

[0096] In the actual application of refrigerator defrosting control, there are some special application scenarios. For example, when the freezer compartment is defrosted alone, the heating wire in the refrigerator compartment will not be turned on, but when the refrigerator and freezer compartments are defrosted at the same time, the heating wire in the refrigerator compartment will be turned on. The following will control the different special scenarios of defrosting the freezer compartment alone and defrosting at the same time.

[0097] In one embodiment, it is determined whether the freezer compartment meets the first defrosting condition; if so, it is determined whether the sum of the precooling time of the freezer compartment and the first preset time is less than the second preset time; if the sum of the precooling time and the first preset time is less than the second preset time, the refrigeration fan is controlled to continue working until the second preset time and then stop, and the heating wire of the freezer compartment is controlled to perform the defrosting operation.

[0098] In this way, when the freezer compartment is defrosted separately, if the running time of the refrigeration fan does not meet the preset shutdown time of the refrigeration fan, the refrigeration fan is controlled to continue working until the shutdown time is met. This ensures that the refrigerator compartment can maintain appropriate temperature and air circulation during the defrosting of the freezer compartment while avoiding unnecessary energy consumption.

[0099] It should be noted that when the freezer compartment is defrosted separately, the refrigerator compartment does not need to be defrosted at the same time. At this time, the refrigeration fan continues to run mainly to maintain uniform temperature distribution in the refrigerator compartment. The heating wire in the refrigerator compartment is turned off, so no heat will be generated. When the refrigeration fan is running, it will not "blow away" the non-existent heat in the refrigerator compartment, but help maintain the existing temperature environment.

[0100] On the other hand, if the refrigeration fan is forced to shut down before running for the second preset time, it means that the refrigeration fan has not run for enough time, the temperature distribution in the refrigeration room may be uneven, and the temperature in some areas may be too high or too low. This uneven temperature distribution itself may have an adverse effect on the quality of food in the refrigeration room; on the other hand, the early shutdown of the refrigeration fan may further aggravate this adverse effect, because the heat fluctuation generated by the operation of the freezing heating wire may more drastically affect the temperature of the refrigeration room. Such drastic temperature fluctuations will not only affect the quality of food in the refrigeration room, but may also cause the system to take longer and use more energy to restore the temperature stability of the refrigeration room.

[0101] FIG5(a) shows a schematic diagram of the process of defrosting the freezer compartment separately, and FIG5(b) shows a schematic diagram of the timing of the first device for defrosting the freezer compartment separately. The working process of the freezer compartment will be summarized below in combination with FIG5(a) and FIG5(b).

[0102] When the freezer compartment meets the defrosting conditions, only the freezer compartment is defrosted, and the refrigeration control process of the refrigerator compartment is not affected (i.e., the freezer compartment defrosts alone). Specifically, when the freezer compartment meets the defrosting conditions alone (i.e., the first defrosting conditions), the refrigerator compartment and the freezer compartment are controlled to perform precooling operations in turn; after the precooling of the refrigerator compartment is completed, the refrigerator fan is controlled to continue to work at a ratio of 50% until the shutdown conditions are met (for example, the temperature of the refrigerator compartment is equal to or lower than T 档 -1, or the refrigeration fan working time is greater than or equal to 10 minutes); after the precooling of the freezer compartment is completed, the refrigeration fan of the freezer compartment is controlled to continue working at 50% until the first 5 minutes when the heating wire is turned on; after controlling the compressor to shut down for 5 minutes, the heating wire in the freezer compartment is controlled to start working; before starting the heating wire, it is also necessary to count and determine whether the sum of the precooling time of the freezer compartment and the first preset time is less than the second preset time (10 minutes); if so, the refrigeration fan is controlled to continue working until the second preset time (10 minutes) and then stop, and the heating wire in the freezer compartment is controlled to perform the defrosting operation.

[0103] After the defrosting of the freezing compartment is completed, the compressor is controlled to start after a delay of 7 minutes. During the delay period, the reversing valve of the compressor is kept in state three, and other equipment is in the closed state; after the delay is over, the refrigeration fan is started after a delay of 5 minutes. During the delay period, the refrigeration fan is turned off, and other equipment is under normal refrigeration control.

[0104] The normal refrigeration control refers to the automatic adjustment of the working state of the refrigeration system (including the first device) according to the preset temperature setting value and the actual temperature of the current compartment during the daily operation of the refrigerator to maintain the compartment temperature within the set range.

[0105] In a specific embodiment, the exit condition of the freezer compartment independent defrosting includes whether the detected temperature of the evaporator in the freezer compartment meets the defined standard temperature value or whether the operating time of the heating wire in the freezer compartment meets the defined standard operating time, and the standard operating time may be 75 minutes.

[0106] It is determined whether the detected temperature of the compartment after the heating wire is connected meets the set temperature threshold or whether the working time of the heating wire meets the set time; if so, the heating wire of the freezing compartment is controlled to be disconnected and the defrosting operation is exited.

[0107] Specifically, as shown in Table 3, if the ambient temperature RT of the refrigerator is less than 18°C, the standard temperature value is 5°C, that is, it is judged whether the detection temperature of the freezing evaporator meets 5°C. If so, the freezing compartment is controlled to exit the defrosting operation; if the ambient temperature RT of the refrigerator is greater than or equal to 18°C, the standard temperature value is 6°C, that is, it is judged whether the detection temperature of the freezing evaporator meets 6°C. If so, the freezing compartment is controlled to exit the defrosting operation.

[0108] Table 3

[0109] Ambient temperature RT(℃) RT<18 RT ≥ 18 Refrigeration defrost sensor exits defrosting 5 6

[0110] In one embodiment, it is determined whether the freezer compartment and the refrigeration compartment simultaneously meet the second defrosting condition; if so, it is determined whether the sum of the precooling time of the freezer compartment and the first preset time is less than the second preset time; if the sum of the precooling time and the first preset time is less than the second preset time, the refrigeration fan is controlled to be forced to stop, and the heating wire of the freezer compartment is controlled to perform the defrosting operation.

[0111] In this way, by forcibly stopping the operation of the refrigeration fan, it is possible to prevent the refrigeration fan from blowing high-temperature air into the refrigeration compartment, causing the temperature of the refrigeration compartment to rise abnormally, thereby affecting the defrosting effect and the preservation quality of food.

[0112] It should be noted that when both the refrigeration compartment and the freezer compartment need to be defrosted, the heating wire of the refrigeration compartment will also be turned on. At this time, the system needs to handle the defrosting needs of the two compartments at the same time. If the refrigeration fan continues to run, the heat generated by the refrigeration heating wire may be blown to other areas of the refrigeration compartment, resulting in uneven temperature distribution or an overall temperature increase; the heat generated by the defrosting of the freezer compartment may also be blown into the refrigeration compartment, causing the temperature of the refrigeration compartment to rise abnormally, affecting the preservation quality of food; and the operation of the refrigeration fan may interfere with the defrosting process of the freezer compartment and reduce the defrosting efficiency.

[0113] In a specific embodiment, after the pre-cooling of the refrigerating compartment is completed, the compressor is controlled to stop, and it is determined whether the duration of the compressor shutdown is greater than or equal to a first preset duration; if so, the refrigerating fan is controlled to be forced to stop, and the heating wire of the freezing compartment is controlled to perform a defrosting operation.

[0114] For ease of understanding, for example, according to the "standard defrost control" process, it can be seen that after the pre-cooling operation is completed, the compressor is turned off, and the refrigeration heating wire is turned on for defrosting operation after the compressor is stopped for 5 minutes. In addition, after the pre-cooling operation is completed, the refrigeration fan will be controlled to be turned off after the refrigeration fan has been running for 10 minutes. If the refrigeration fan happens to have been running for between 5 minutes and 10 minutes, such as 8 minutes, different controls are performed according to the defrost mode. For example, if the freezer compartment is defrosted alone, the refrigeration fan is controlled to continue running for 10 minutes, then the refrigeration fan is turned off, and then the refrigeration heating wire is turned on; if the refrigeration compartment and the freezer compartment are defrosted at the same time, the refrigeration fan is forced to stop, and the heating wire of the freezer compartment is controlled to perform the defrost operation.

[0115] When the refrigerating compartment and the freezing compartment are defrosted at the same time, the frost degree and defrosting demand of the refrigerating compartment and the freezing compartment will be different due to their different temperature settings and stored items. Therefore, the order of ending refrigerating defrosting and freezing defrosting is different, and the corresponding control method is also different.

[0116] In one embodiment, after step S3, the method may further include the following steps.

[0117] Step S4, based on the order in which the refrigerating compartment and the freezing compartment complete the defrosting operation, controlling the first device to perform a third operation, wherein the third operation is used to achieve a preset refrigeration target, and the detection temperature corresponding to the preset refrigeration target is lower than the detection temperature corresponding to the second operation.

[0118] In this way, by controlling the first device to perform the third operation in a reasonable order (such as switching the power supply sequence of the heating elements, adjusting the wind speed of the fan, etc.), it can ensure that the defrosting process is more efficient and reduce unnecessary energy waste.

[0119] like Figure 6 As shown, in a specific embodiment, step S4 of the present invention may specifically include the following steps.

[0120] Step S41, determining whether the time for the refrigerating compartment to complete the defrosting operation is less than the time for the freezing compartment to complete the defrosting operation;

[0121] If yes, jump to step S42A, after the defrosting operation of the freezing compartment is completed, control the compressor to sequentially complete the refrigeration of the freezing compartment and the refrigerating compartment after the third preset time;

[0122] If not, jump to step S42B, control the compressor to complete the refrigeration of the freezing compartment after the third preset time, and determine whether the defrosting operation of the refrigerating compartment is completed;

[0123] Step S43, if the defrosting operation of the refrigerated compartment is not completed, controlling the refrigerated compartment to continue the defrosting operation;

[0124] Step S44, if the defrosting operation of the refrigerating compartment is completed, then after a first preset time, the first action of the reversing valve is controlled to switch to the first pipeline channel of the refrigerating compartment.

[0125] In this way, adaptive control is performed according to the difference between the defrosting time of the refrigerating compartment and the defrosting time of the freezing compartment, which can avoid large temperature fluctuations and ensure that the freezing compartment defrosts thoroughly.

[0126] Specifically, when the refrigerating compartment has completed defrosting earlier than the freezing compartment, refrigeration should be performed after the freezing compartment has completed defrosting (freezing refrigeration first, then refrigeration refrigeration). Because, if the refrigerating compartment starts to refrigerate before the freezing compartment has completed defrosting, the temperature of the refrigerating compartment will drop rapidly, while the freezing compartment is still defrosting and its internal temperature is relatively high. This temperature difference will increase the internal temperature fluctuation of the system, which is not conducive to the stable operation of the refrigerator.

[0127] In addition, if the refrigerator compartment starts to refrigerate before the freezer compartment defrosts, the defrosting process of the freezer compartment may be disturbed, resulting in incomplete defrosting. Incomplete defrosting will leave a thicker layer of frost, which will not only increase the energy consumption of the refrigerator, but also affect the refrigeration effect of the freezer compartment.

[0128] When the freezer compartment has completed defrosting earlier than the refrigerator compartment, the freezer compartment can be directly refrigerated without waiting for the refrigerator compartment to complete defrosting, which can ensure that the frozen food is restored to a safe temperature range as soon as possible and reduce the food quality risk caused by temperature fluctuations. At the same time, after the freezer compartment has completed the refrigeration operation, check whether the refrigerator compartment has completed the defrosting operation. If the refrigerator compartment has not completed defrosting, continue to defrost to avoid problems caused by incomplete defrosting, such as severe frosting on the evaporator surface and reduced refrigeration efficiency; if the refrigerator compartment has completed defrosting, switch to the refrigeration mode of the refrigerator compartment, which can ensure that both compartments can return to the appropriate temperature range in the shortest time.

[0129] In a specific embodiment, the third preset time length is 7 minutes.

[0130] In a specific embodiment, "completing the refrigeration of the freezer compartment" means that the compartment temperature of the freezer compartment reaches the freezing shutdown point temperature or the working time of the freezer compartment refrigeration fan is greater than or equal to the set time (for example, 15 minutes).

[0131] Understandably, the refrigerated compartment may be in a different defrosting stage in the freezer compartment, and just happens to meet the defrosting conditions. At this time, the refrigerated compartment is added to the freezer compartment for defrosting. For example, when the freezer compartment enters defrosting according to the longest running time (i.e. 50h), it is determined whether the running time of the refrigerated compartment is greater than or equal to 10h. If so, the refrigeration compartment and the freezer compartment are controlled to defrost simultaneously; or, when the refrigeration compartment enters defrosting according to the longest running time (i.e. 50h), it is determined whether the running time of the freezer compartment is greater than or equal to 10h. If so, the refrigeration compartment and the freezer compartment are controlled to defrost simultaneously; or, during the precooling stage of the freezer compartment defrosting, the refrigerated compartment meets the defrosting conditions, and after the freezer compartment completes the precooling operation, the refrigeration compartment and the freezer compartment are controlled to defrost simultaneously; or, during the 5-minute delay of the compressor shutdown after the freezer compartment is defrosted separately, the refrigerated compartment meets the defrosting conditions, and after the compressor is shut down for 5 minutes, the refrigeration compartment and the freezer compartment are controlled to defrost simultaneously.

[0132] FIG7(a) is a schematic diagram showing a process flow of simultaneously defrosting the refrigerating compartment and the freezing compartment, FIG7(b) is a timing diagram showing a first device in which the defrosting of the refrigerating compartment is completed before that of the freezing compartment, and FIG7(c) is a timing diagram showing a first device in which the defrosting of the refrigerating compartment is completed later than that of the freezing compartment. The defrosting process of the refrigerating compartment and the freezing compartment will be summarized below in combination with FIG7(a), FIG7(b) and FIG7(c).

[0133] When the refrigeration compartment and the freezer compartment enter the defrosting process at the same time, determine whether the compartment temperature of the refrigeration compartment is greater than the shutdown point; if so, control the refrigeration compartment to perform precooling operation until it reaches the refrigeration shutdown point or the refrigeration time reaches 20 minutes, and then switch to the freezer compartment for precooling; the freezer compartment performs precooling operation until the compartment temperature of the freezer compartment reaches the refrigeration shutdown point (T 冷冻关机 -2)℃ or the precooling time reaches 30min; within 5min after the precooling is completed, the refrigeration fan continues to operate at 50%; after the precooling of the refrigerated compartment is completed, the refrigeration fan continues to operate at 50% until the detected temperature of the refrigeration evaporator is higher than T 档 -1, or the refrigeration fan continues to work for 10 minutes, or the refrigeration fan shuts down after the delay reaches 5 minutes after the precooling ends. Before starting the heating wire, it is also necessary to count and determine whether the sum of the precooling time of the freezing compartment and the first preset time is less than the second preset time (10 minutes); if so, the refrigeration fan is forced to stop, and the heating wire of the freezing compartment is controlled to perform the defrosting operation.

[0134] In a specific embodiment, the exit condition for simultaneous defrosting of refrigeration and freezing includes at least one of the exit condition for defrosting of the freezer compartment and the exit condition for defrosting of the refrigeration compartment; the exit condition for defrosting of the freezer compartment is the same as the exit condition for defrosting of the freezer compartment alone; the exit condition for defrosting of the refrigeration compartment is the same as the exit condition for defrosting of the refrigeration compartment alone, and can refer to the exit conditions for defrosting of the morning and afternoon alone, which will not be described in detail here.

[0135] As shown in Figure 7(b), when the defrosting of the refrigerated compartment is completed first, the compressor will be turned on after a delay of 7 minutes until the defrosting of the freezer compartment is completed, and the freezer compartment will be controlled to perform refrigeration operation until the compartment temperature of the freezer compartment reaches the freezing shutdown point or the refrigeration is performed for a maximum of 15 minutes, and then normal refrigeration control is restored.

[0136] As shown in Figure 7(c), when the defrosting of the freezer compartment ends first, the defrosting control of the refrigerating compartment continues, and the compressor is turned on after a delay of 7 minutes to control the freezer compartment to perform refrigeration operation until the compartment temperature of the freezer compartment reaches the freezing shutdown point or the refrigeration is continued for a maximum of 15 minutes. Then, it is determined whether the defrosting operation of the refrigerating compartment is completed. If the defrosting of the refrigerating compartment is completed, the control reversing valve is switched to the refrigerating compartment refrigeration after a delay of 5 minutes. If the defrosting of the refrigerating compartment is not completed, the freezer compartment is controlled to perform normal refrigeration control. The refrigerating compartment continues to defrost until the end, and then the control reversing valve is switched to the refrigerating compartment refrigeration after a delay of 5 minutes, and then normal refrigeration control is restored.

[0137] It should be noted that no matter it is a single defrost or a joint defrost, after the defrost operation is completed, the running time is t 运行 and the accumulated door opening time t 开门 All need to be reset to facilitate the next defrost operation.

[0138] The above is for the control of defrosting the freezing compartment alone and defrosting the refrigerating and freezing compartments at the same time. The method may also include the operation of defrosting the refrigerating compartment alone.

[0139] like Figure 8 As shown, in one embodiment, the method further includes the following steps.

[0140] Step M1, determining whether the refrigerated compartment meets the third defrosting condition;

[0141] If yes, jump to step M2 to determine whether the freezing compartment is in the defrosting period;

[0142] Step M3, if the freezing compartment is not in the defrosting period, controlling the first device to perform an air defrosting operation on the refrigerating compartment, and controlling the heating wire of the refrigerating compartment to perform a defrosting operation after a fourth preset time period;

[0143] Step M4, if the freezing compartment is in the defrosting period, when the freezing compartment is in the first defrosting stage, controlling the heating wire of the refrigerating compartment to perform the defrosting operation;

[0144] Step M5, if the freezing compartment is in the defrosting period, when the freezing compartment is in the second defrosting stage, the compressor is controlled to perform a refrigerating operation on the refrigerating compartment, and after completing the refrigerating operation for a preset time, the refrigerating compartment is controlled to perform a defrosting operation.

[0145] In this way, by taking different defrosting measures at different stages, such as air defrosting, heating wire defrosting and refrigeration operation, the defrosting demand and temperature stability can be balanced to reduce the temperature fluctuation of the refrigerated compartment caused by the defrosting process.

[0146] In a specific embodiment, the fourth preset time is 1 minute, the first defrosting stage is during the operation of the refrigeration defrosting heating wire, and the second defrosting stage is during the delayed start-up of the compressor or the refrigeration fan after the refrigeration defrosting is completed. Since the defrosting has just been completed, the temperature of the local area around the heating wire is relatively high, and the temperature can be reduced by delaying, thereby avoiding temperature fluctuations or uneven distribution caused by starting the compressor or the fan.

[0147] Air defrosting refers to using the heat in the environment or the heat generated inside the refrigerator to melt the frost layer on the evaporator surface, thereby restoring the heat exchange efficiency of the evaporator. Specifically, before the refrigerated compartment is defrosted by air, the refrigeration operation of the refrigerated compartment is controlled to reduce further frost on the evaporator surface; the damper of the refrigerated compartment is controlled to open to allow air circulation in the refrigerated compartment, and the refrigeration fan is controlled to work, which helps to accelerate the flow of air in the refrigerated compartment and further promote the transfer of heat and the melting of the frost layer.

[0148] For example, before the air defrosting of the refrigerated compartment, the refrigeration of the refrigerated compartment is stopped, the refrigeration damper is opened, and the refrigeration fan is controlled to continue to operate at 50% of the ratio until the surface detection temperature of the refrigerated compartment (detected by the refrigeration defrosting sensor) is greater than 0°C or the compartment temperature of the refrigerated compartment (detected by the refrigeration sensor) is less than 1°C or the air defrosting time reaches 10 minutes, the refrigeration fan is turned off, and the air defrosting operation is exited.

[0149] In a specific embodiment, the exit condition of the independent defrosting of the refrigerating compartment includes whether the detected temperature of the evaporator in the refrigerating compartment meets the defined standard temperature value or whether the operating time of the heating wire in the refrigerating compartment meets the defined standard operating time, and the standard operating time may be 75 minutes.

[0150] Specifically, as shown in Table 4, if the ambient temperature RT of the refrigerator is less than 18°C, the standard temperature value is 6°C, that is, it is judged whether the detection temperature of the refrigeration evaporator meets 6°C. If so, the refrigeration compartment is controlled to exit the defrosting operation; if the ambient temperature RT of the refrigerator is greater than or equal to 18°C, the standard temperature value is 7°C, that is, it is judged whether the detection temperature of the refrigeration evaporator meets 7°C. If so, the refrigeration compartment is controlled to exit the defrosting operation.

[0151] Table 4

[0152] Ambient temperature RT(℃) RT<18 RT ≥ 18 Refrigeration defrost sensor exits defrosting 6 7

[0153] After defrosting of the refrigerated compartment, if the compressor is in the on state, determine whether the compartment temperature of the refrigerated compartment meets the start-up conditions (i.e., whether refrigeration needs to be continued); if so, control the first action of the reversing valve to give priority to refrigerating the refrigerated compartment, and restore normal refrigeration control after the refrigerated compartment operates to the shutdown conditions; if not, restore normal refrigeration control of the refrigerated compartment. After defrosting of the refrigerated compartment, if the compressor is in the off state, restore normal refrigeration control of the refrigerated compartment.

[0154] FIG9(a) shows a schematic diagram of the process of defrosting the refrigerated compartment separately, and FIG9(b) shows a timing diagram of the first device for defrosting the refrigerated compartment separately. The working process of the refrigerated compartment will be summarized below in combination with FIG9(a) and FIG9(b).

[0155] When the refrigerating compartment meets the defrosting conditions, only the refrigerating compartment is defrosted, and the refrigeration control process of the freezing compartment is not affected (i.e., the refrigerating compartment is defrosted separately). Specifically, when the refrigerating compartment meets the defrosting conditions separately (i.e., the third defrosting conditions), it is determined whether the freezing compartment also meets the defrosting conditions separately (i.e., the first defrosting conditions). If the freezing compartment does not meet the defrosting conditions during the defrosting period of the refrigerating compartment, the refrigerating compartment is controlled to be defrosted by air, and after the air defrosting is completed, the heating wire of the refrigerating compartment is turned on for defrosting operation after a delay of 1 minute (i.e., "standard defrosting control of the refrigerating compartment"); if the freezing compartment meets the defrosting conditions separately, the defrosting operation of the refrigerating compartment is controlled according to whether the freezing compartment is in a certain defrosting stage.

[0156] For example, if the heating wire of the freezer compartment meets the defrosting condition during the working process, the refrigeration heating wire is controlled to work immediately to perform the defrosting operation (that is, the air defrosting operation is not performed); if after the defrosting of the freezer compartment is completed, the compressor is in the delayed refrigeration process of 7 minutes of delayed start-up or the refrigeration fan is in the delayed refrigeration process of 5 minutes of delayed start-up and meets the defrosting condition, the compressor is controlled to cool the refrigeration compartment, and after the refrigerator has been running for 2 hours (h), the refrigeration compartment is controlled to enter normal refrigeration operation.

[0157] like Fig.10 As shown, an embodiment of the present invention provides an electronic device 200.

[0158] The electronic device 200 may specifically be a computer device, and the computer device may be a terminal device or a server.

[0159] The electronic device 200 includes at least one processor. The refrigerator defrosting control method provided by the present invention can be applied to the processor or implemented by the processor. The processor can be a central processing unit (CPU) 21.

[0160] The electronic device 200 includes a memory. The memory is used to store various types of data to support the operation of the electronic device 200. Examples of such data include any computer program for operating on a computer device. The memory may be a read-only memory (ROM) 22, a random access memory (RAM) 23, or other storage part 28. The storage part 28 may be located inside the electronic device 200 or outside the electronic device 200.

[0161] In one embodiment, when the processor executes the computer program stored in the memory, the steps of the refrigerator defrosting control method in any technical solution of the present invention are performed.

[0162] In one embodiment, the electronic device 200 includes a central processing unit 21, which can perform various appropriate actions and processes according to the program stored in the read-only memory 22 or the program loaded from the storage part 28 into the random access memory 23. Various programs and data required for system operation are also stored in the random access memory 23. The central processing unit 21, the read-only memory 22 and the random access memory 23 are connected to each other through a bus 24. An input / output interface (Input / Output interface, i.e., I / O interface) 25 is also connected to the bus 24.

[0163] The following components are connected to the input / output interface 25: an input section 26 including a keyboard, a mouse, etc.; an output section 27 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 28 including a hard disk, etc.; and a communication section 29 including a network interface card such as a LAN card, a modem, etc. The communication section 29 performs communication processing via a network such as the Internet. A drive 210 is also connected to the input / output interface 25 as needed. A removable medium 211, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 210 as needed, so that a computer program read therefrom is installed into the storage section 28 as needed.

[0164] One embodiment of the present invention provides a computer-readable storage medium.

[0165] In one embodiment, a computer readable storage medium stores a computer program executed by the processor mentioned above, or a refrigerator defrosting control method in any of the technical solutions described below.

[0166] When the processor executes the computer program, it can execute the description of the refrigerator defrosting control method in any technical solution below, so it will not be repeated here. In addition, the description of the beneficial effects of adopting the same method will not be repeated.

[0167] The computer-readable storage medium may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0168] In summary, the refrigerator defrost control method, device and storage medium provided by the present invention can lower the temperature of the refrigerator through pre-cooling operation, create a lower starting point for the subsequent defrosting process, and reduce the increase in the indoor temperature of the refrigerator during the defrosting process, thereby minimizing the adverse effects on food quality; in addition, by dividing the defrost process into two stages, the first operation and the second operation, it can be dynamically adjusted according to real-time temperature detection feedback. This staged operation mode not only improves the efficiency and accuracy of defrosting, but also makes the defrost process more flexible and efficient, avoiding excessive or insufficient defrosting from having an adverse effect on the freshness and taste of food.

[0169] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0170] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigerator defrosting control method, characterized in that: include: Determine whether at least the freezing compartment meets the defrosting conditions; If yes, control the refrigerating compartment and the freezing compartment to perform a precooling operation, and after the precooling operation is completed, control the first device to perform a first operation; wherein the first device includes at least one of a compressor, a heating wire, a fan, a damper, and a reversing valve; Acquire and control the first device to perform a second operation based on the detected temperature corresponding to the first operation; the second operation is used to achieve a preset defrost target, and the first target temperature corresponding to the pre-cooling operation is lower than the second target temperature set by the preset defrost target.

2. The refrigerator defrosting control method according to claim 1, characterized in that: The controlling of the refrigerating compartment and the freezing compartment to perform a precooling operation comprises: The refrigerating compartment and the freezing compartment are controlled in sequence to perform precooling operations.

3. The refrigerator defrosting control method according to claim 2, characterized in that: The method of sequentially controlling the refrigerating compartment and the freezing compartment to perform a precooling operation includes: Determine whether the detected temperature of the refrigerated compartment is greater than the set start-up point temperature or whether the precooling operation time of the refrigerated compartment is less than the set precooling time; If yes, the compressor is controlled to start, and the first action of the reversing valve is controlled to connect the first pipeline channel to the refrigerated compartment; After the precooling operation of the refrigerating compartment is completed, the second action of the reversing valve is controlled to switch to the second pipeline channel of the freezing compartment.

4. The refrigerator defrosting control method according to claim 1, characterized in that: After the precooling operation is completed, controlling the first device to perform the first operation includes: After the precooling operation of the freezing chamber is completed, the corresponding freezing fan is controlled to start working within a first preset time; After the pre-cooling operation of the refrigerating compartment is completed, the corresponding refrigerating fan is controlled to start working within a first preset time period.

5. The refrigerator defrosting control method according to claim 1, characterized in that: The acquiring and controlling the first device to perform the second operation according to the detected temperature corresponding to the first operation includes: Obtaining and determining whether the temperature of the refrigerated compartment is higher than a first preset temperature, or determining whether the working time of the refrigeration fan is greater than or equal to a second preset time; If yes, the heating wire of the freezing compartment is controlled to perform a defrosting operation after the compressor is stopped for a first preset time period.

6. The refrigerator defrosting control method according to claim 1, characterized in that: The step of judging whether at least the freezing compartment meets the defrosting condition comprises: Determine whether the freezing compartment meets the first defrosting condition, or determine whether the freezing compartment and the refrigerating compartment meet the second defrosting condition at the same time; The first defrost condition is determined based on the freezing operation time of the freezer compartment and the accumulated door opening time of the freezer compartment, the second defrost condition is determined based on the refrigerating compartment satisfying the third defrost condition during the defrosting process of the freezer compartment, and the third defrost condition is determined based on the refrigerating operation time of the refrigerating compartment and the accumulated door opening time of the refrigerating compartment.

7. The refrigerator defrosting control method according to claim 1, characterized in that: The step of judging whether at least the freezing compartment meets the defrosting condition comprises: Determine whether the freezing compartment meets the first defrosting condition; Before controlling the first device to perform the second operation, the method further includes: Counting and determining whether the sum of the precooling time of the freezing compartment and the first preset time is less than the second preset time; If so, the refrigeration fan is controlled to continue to work until the second preset time and then stop, and the heating wire of the freezing compartment is controlled to perform a defrosting operation.

8. The refrigerator defrosting control method according to claim 1, characterized in that: The step of judging whether at least the freezing compartment meets the defrosting condition comprises: Determine whether the freezing compartment and the refrigerating compartment simultaneously meet the second defrosting condition; Before controlling the first device to perform the second operation, the method further includes: Counting and determining whether the sum of the precooling time of the freezing compartment and the first preset time is less than the second preset time; If so, the refrigeration fan is forced to stop, and the heating wire of the freezing compartment is controlled to perform the defrosting operation.

9. The refrigerator defrosting control method according to claim 1, characterized in that: The step of judging whether at least the freezing compartment meets the defrosting condition comprises: Determine whether the freezing compartment and the refrigerating compartment simultaneously meet the second defrosting condition; After controlling the first device to perform the second operation, the method further includes: Based on the order in which the refrigerating compartment and the freezing compartment complete the defrosting operation, the first device is controlled to perform a third operation, wherein the third operation is used to achieve a preset refrigeration target, and the detection temperature corresponding to the preset refrigeration target is lower than the detection temperature corresponding to the second operation.

10. The refrigerator defrosting control method according to claim 9, characterized in that: The controlling the first device to perform the third operation based on the order in which the refrigerating compartment and the freezing compartment complete the defrosting operation comprises: Determine whether the time for the refrigeration compartment to complete the defrosting operation is less than the time for the freezing compartment to complete the defrosting operation; If yes, after the defrosting operation of the freezing compartment is completed, the compressor is controlled to sequentially complete the refrigeration of the freezing compartment and the refrigerating compartment after a third preset time.

11. The refrigerator defrosting control method according to claim 10, characterized in that: After determining whether the time for the refrigerating compartment to complete the defrosting operation is less than the time for the freezing compartment to complete the defrosting operation, the method further includes: If not, the compressor is controlled to complete the refrigeration of the freezing compartment after the third preset time, and it is determined whether the defrosting operation of the refrigerating compartment is completed; If the defrosting operation of the refrigerated compartment is not completed, the refrigerated compartment is controlled to continue the defrosting operation; If the defrosting operation of the refrigerating compartment is completed, the first action of the reversing valve is controlled after a first preset time period to switch the reversing valve to the first pipeline channel of the refrigerating compartment.

12. The refrigerator defrosting control method according to claim 1, characterized in that: The method further comprises: Determine whether the refrigerated compartment meets the third defrosting condition; If yes, determine whether the freezing compartment is in the defrosting period; If the freezing compartment is not in the defrosting period, the first device is controlled to perform an air defrosting operation on the refrigerating compartment, and the heating wire of the refrigerating compartment is controlled to perform a defrosting operation after a fourth preset time.

13. The refrigerator defrosting control method according to claim 12, characterized in that: After determining whether the freezing compartment is in a defrosting period, the method further includes: If the freezing compartment is in the defrosting period, when the freezing compartment is in the first defrosting stage, the heating wire of the refrigerating compartment is controlled to perform the defrosting operation; If the freezing compartment is in the defrosting period, when the freezing compartment is in the second defrosting stage, the compressor is controlled to perform a refrigerating operation on the refrigerating compartment, and the refrigerating compartment is controlled to perform a defrosting operation after the refrigerating operation is completed for a preset time.

14. A refrigeration device comprising: at least one processor; A memory storing a computer program that can be run on the processor, wherein the processor executes the steps of the refrigerator defrosting control method according to claims 1-13 when executing the program.

15. A computer storage medium comprising: at least one processor; A memory storing a computer program that can be run on the processor, wherein the processor executes the steps of the refrigerator defrosting control method according to claims 1-13 when executing the program.

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