CN117073298A - Control method for refrigerator to delay defrosting and refrigerator - Google Patents

Abstract

The invention belongs to the technical field of refrigeration equipment, and particularly provides a control method for delaying defrosting of a refrigerator. The refrigerator comprises a storage compartment and an evaporator for providing cold energy for the storage compartment. The control method of the invention comprises the following steps: controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator reaching a defrosting condition and the current moment being in a non-electricity-consumption valley period; acquiring the cooling time of the storage compartment for decreasing by a preset temperature; and controlling the refrigerator to defrost the evaporator in response to the cooling time being greater than or equal to a preset cooling time. The invention can timely defrost the evaporator when the refrigerator is in a non-electricity low-valley period and the refrigeration efficiency is low, thereby ensuring the refrigeration efficiency of the refrigerator.

Description

Control method for refrigerator to delay defrosting and refrigerator

Technical Field

The invention belongs to the technical field of refrigeration equipment, and particularly provides a control method for delaying defrosting of a refrigerator.

Background

Air-cooled refrigerators each have a cabinet, an evaporator, and a blower, and a storage compartment (including at least one of a refrigerating compartment, a freezing compartment, and a temperature-changing compartment) and a refrigerating compartment are defined in the cabinet. The evaporator is disposed within the refrigeration compartment. The fan is used for driving air in the refrigerator to flow so that cold air around the evaporator flows to the storage compartment to refrigerate the storage compartment.

In the using process of the refrigerator, water vapor in the refrigerator flows to the evaporator along with the airflow and is condensed into frost by the evaporator, so that the frost is attached to the surface of the evaporator. When more frost is formed on the evaporator, heat exchange of the evaporator is affected, thereby affecting refrigerating efficiency of the refrigerator. For this reason, defrosting of the evaporator is required.

A general refrigerator performs defrosting when an evaporator reaches a defrosting condition, that is, when condensed frost on the evaporator is more. However, considering that the daytime is a peak electricity consumption period, the electricity charge is also high, and in order to balance the electricity consumption load of the power grid, some refrigerators defrost the evaporator in a valley electricity consumption period. However, when the frost on the evaporator reaches a defrosting condition during the daytime and the refrigerating efficiency is low, electric power is seriously wasted and the service life of the refrigerator is reduced.

Disclosure of Invention

The invention aims to solve the problem that the refrigerator adopting the defrosting strategy in the low electricity consumption period is low in refrigeration efficiency due to the fact that the frosting quantity on an evaporator is large in daytime.

It is a further object of the present invention to concentrate the defrosting time of a refrigerator in the low electricity consumption period.

In order to achieve the above object, the present invention provides in a first aspect a control method for a refrigerator for delaying defrosting, the refrigerator including a storage compartment and an evaporator for providing cold to the storage compartment; the control method comprises the following steps:

controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator reaching a defrosting condition and the current moment being in a non-electricity-consumption valley period;

acquiring the cooling time of the storage compartment for decreasing by a preset temperature;

and controlling the refrigerator to defrost the evaporator in response to the cooling time being greater than or equal to a preset cooling time.

Optionally, the controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator reaching a defrosting condition and the current moment being in a low-power-off period includes:

determining a state of a refrigerator door in response to the evaporator reaching a defrosting condition and the current moment being in a non-electricity-use valley period;

determining a door closing time of the refrigerator door in response to the refrigerator door being in a closed state;

and controlling the refrigerator to forcedly cool the storage compartment in response to the closing time reaching a preset closing time.

Optionally, the controlling the refrigerator to forcedly cool the storage compartment in response to the closing time reaching a preset closing time includes:

determining whether the evaporator provides cold for the storage compartment and stops providing cold at the current moment in response to the closing time reaching a preset closing time;

and controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator providing the cooling capacity for the storage compartment and stopping providing the cooling capacity at the current moment.

Optionally, the controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator providing the cooling capacity to the storage compartment and stopping providing the cooling capacity at the current moment includes:

determining a temperature of the storage compartment in response to the evaporator providing cold to the storage compartment and stopping providing cold at a current time;

and controlling the refrigerator to forcedly cool the storage compartment in response to the temperature of the storage compartment rising to the temperature required to be cooled.

Optionally, the control method further includes:

and in the process of controlling the refrigerator to forcedly cool the storage compartment, controlling the refrigerator to stop refrigerating in response to the refrigerator door being opened.

Optionally, the controlling the refrigerator to defrost the evaporator in response to the cooling time being greater than or equal to a preset cooling time includes:

determining a time interval between the current moment and the starting moment of the electricity consumption valley period in response to the cooling time being greater than or equal to the preset cooling time;

determining the defrosting rate of the refrigerator to the evaporator according to the time interval;

and controlling the refrigerator to defrost the evaporator according to the defrosting rate.

Optionally, the determining, according to the time interval, a defrosting rate of the refrigerator to the evaporator includes:

determining a ratio of the time interval to a defrost cycle of the evaporator;

and determining the ratio as the defrosting rate.

Optionally, the control method further includes:

and controlling the refrigerator to completely defrost the evaporator in the electricity consumption valley period in response to the defrosting rate being in a preset range.

Optionally, the preset range is:

wherein,

m is the defrosting period, and t is the time interval.

The present invention provides in a second aspect a refrigerator comprising a controller, a memory and execution instructions stored on the memory, the execution instructions being arranged, when executed by the controller, to enable the refrigerator to perform the control method of any one of the first aspects.

Based on the foregoing description, it can be understood by those skilled in the art that in the foregoing technical solution of the present invention, when the evaporator reaches the defrosting condition and the current time is in the non-electricity-consumption low-valley period, the refrigerator is controlled to forcedly cool the storage compartment, then the cooling time of the storage compartment for lowering the preset temperature is obtained, and when the cooling time is greater than or equal to the preset cooling time, the refrigerator is controlled to defrost the evaporator, so that the refrigerator can timely defrost the evaporator in the non-electricity-consumption low-valley period and the refrigeration efficiency is lower, thereby ensuring the refrigeration efficiency of the refrigerator.

Further, when the evaporator reaches a defrosting condition and the current moment is in a non-electricity-consumption valley period, determining the state of the refrigerator door; when the refrigerator door is in a closed state, determining the door closing time of the refrigerator door; when the door closing time reaches the preset door closing time, controlling the refrigerator to forcedly cool the storage compartment; the problem that the cooling rate of the storage compartment is affected by heat rushing into the storage compartment in the refrigerator door opening process, so that the refrigerator is wrongly judged to be low in refrigeration efficiency, and defrosting is wrongly started is avoided.

Still further, when the door closing time reaches a preset door closing time, the refrigerator is controlled to forcedly cool the storage compartment by determining whether the evaporator provides the cooling capacity for the storage compartment and stops providing the cooling capacity at the current moment, and when the evaporator provides the cooling capacity for the storage compartment and stops providing the cooling capacity at the current moment; the influence of high-heat food materials newly placed in the storage compartment on the cooling rate of the refrigerator is avoided.

Still further, when the temperature of the storage compartment rises to the temperature required to be refrigerated, the refrigerator is controlled to forcedly cool the storage compartment, so that the cooling rate of the storage compartment can be determined and the frosting condition of the evaporator can be determined in the process of executing the original control strategy of the refrigerator, and the original program of the refrigerator is prevented from being excessively modified.

In addition, when the cooling time is greater than or equal to the preset cooling time, determining the time interval between the current moment and the starting moment of the electricity consumption valley period; then determining the defrosting rate of the refrigerator to the evaporator according to the time interval; therefore, the refrigerator is controlled to defrost the evaporator according to the defrosting rate, so that when the refrigerator has to defrost in the daytime, the refrigerator can adhere to the electricity consumption low-valley period through a small amount of defrosting, and the defrosting is performed in the electricity consumption low-valley period, and the defrosting time of the refrigerator is ensured to be concentrated in the electricity consumption low-valley period.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. It will be understood by those skilled in the art that components or portions thereof identified in different drawings by the same reference numerals are identical or similar; the drawings of the invention are not necessarily to scale relative to each other.

In the accompanying drawings:

fig. 1 is a partial construction schematic view of a refrigerator provided according to the inventive concept of the present invention;

FIG. 2 is a flow chart of the main steps of a control method in some embodiments of the invention;

FIG. 3 is a flowchart of steps for determining whether a refrigerator is strongly refrigerated in some embodiments of the present invention;

FIG. 4 is a flowchart of steps for determining an evaporator defrosting rate in some embodiments of the invention;

fig. 5 is a partial schematic view of a refrigerator according to other embodiments of the present invention.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention, and the some embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present invention, shall still fall within the scope of protection of the present invention.

It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Further, it should also be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

In addition, it should be noted that, in the description of the present invention, the terms "cooling capacity" and "heating capacity" are two descriptions of the same physical state. That is, the higher the "cooling capacity" of a certain object (for example, evaporator, air, condenser, etc.), the lower the "heat" of the object, and the lower the "cooling capacity" of the object, the higher the "heat" of the object. Some object absorbs the cold and releases the heat, and the object releases the cold and absorbs the heat. A target maintains "cold" or "heat" to maintain the target at a current temperature. "refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, i.e., a target (e.g., an evaporator) absorbs heat while it is refrigerating.

The control method for delay defrosting of a refrigerator and the refrigerator according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, for convenience of description and for enabling those skilled in the art to quickly understand the technical solution of the present invention, only the technical features that are relatively strongly related (directly related or indirectly related) to the technical problem and/or the technical concept to be solved by the present invention will be described hereinafter, and the technical features that are relatively weakly related to the technical problem and/or the technical concept to be solved by the present invention will not be described in detail. Since the technical features with a weak degree of association belong to common general knowledge in the art, the disclosure of the present invention will not be insufficient even if the features with a weak degree of association are not described.

As shown in fig. 1, in the present invention, a refrigerator 100 includes a cabinet 110 and an evaporator 120, the cabinet 110 defining a storage compartment 111 and a cooling compartment 112, the storage compartment 111 including at least one of a refrigerating compartment, a freezing compartment and a temperature changing compartment. An evaporator 120 is disposed within the refrigerated compartment 112.

It will be appreciated by those skilled in the art that in the present invention, the number of storage compartments 111 on the refrigerator 100 is not limited to the two shown in fig. 1, but may be any other feasible number, for example, one, three, five, etc.

Further, in the present invention, the refrigerator 100 may be a direct-cooling type refrigerator in addition to the air-cooling type refrigerator shown in fig. 1. However, at least a portion of the evaporator 120 of the direct-cooling refrigerator is exposed in the storage compartment 111.

Other structures of the refrigerator 100 will be described later in connection with a control method for delay defrosting of the refrigerator.

As shown in fig. 2, in some embodiments of the present invention, a control method for a refrigerator to delay defrosting includes:

in step S110, the refrigerator 100 is controlled to strongly cool the storage compartment 111 in response to the evaporator 120 reaching the defrosting condition and the current time being in the off-low period.

In some embodiments of the present invention, the defrosting condition is that the amount of frost on the evaporator 120 reaches a preset threshold. When the amount of frost on the evaporator 120 reaches the preset threshold, the refrigerating efficiency of the evaporator 120 is low, i.e., the amount of frost on the evaporator 120 is large, seriously impeding heat exchange of the evaporator 120. Based on this, a person skilled in the art can determine the preset threshold value through a plurality of experiments for different models of the refrigerator 100. Since the technical means for determining the preset threshold is conventional in the art and can be obtained by those skilled in the art through a naive experience, a detailed description thereof will be omitted herein.

Alternatively, the defrosting condition is that the time from the current moment to the last defrosting of the refrigerator 100 reaches the defrosting cycle. The defrosting cycle may be a time manually set and stored on the refrigerator 100.

In some embodiments of the invention, the strong refrigeration is to increase the refrigeration power of the evaporator 120 to the storage compartment 111 (relative to conventional refrigeration), such as increasing the speed of the compressor, increasing the speed of the fan, etc. The fan serves to drive cool air around the evaporator 120 into the storage compartment 111.

In the present invention, the electricity consumption low valley period and the non-electricity consumption low valley period are the electricity consumption low valley period and the non-electricity consumption low valley period of the region where the refrigerator 100 is located, and may be obtained in any possible manner. As an example, the power-on off period and the power-off period may be manually input to the refrigerator 100 in advance by a user and stored on the refrigerator 100. As an example two, the electricity consumption low valley period and the non-electricity consumption low valley period may be acquired from the user's mobile phone by a bluetooth module, a WiFi module, or a functional module of the refrigerator 100 that can be communicatively connected to the user's mobile phone. As an example three, the power-on off periods and the power-off periods may be acquired from the internet by communication modules (e.g., wiFi module, 4G communication module, 5G communication module, etc.) of the refrigerator 100.

As shown in fig. 3, in some embodiments of the present invention, step S110 further includes:

in step S111, the state of the refrigerator door is determined in response to the evaporator 120 reaching the defrosting condition and the current time being in the off-low period.

In some embodiments of the present invention, a refrigerator door has a door-open state and a door-closed state. Further, a door opening and closing detection device (for example, a micro switch, a reed pipe, a hall sensor, etc.) is provided to the refrigerator 100, and the refrigerator 100 determines a state of a refrigerator door by using the door opening and closing detection device.

The door opening/closing detection means is illustratively a micro switch which is in an off state when the refrigerator door is closed and in an on state when the refrigerator door is opened. When the refrigerator 100 detects that the micro-switch is in the off state, it is determined that the refrigerator door is in the door-closed state; when the refrigerator 100 detects that the micro-switch is in the on state, it is determined that the refrigerator door is in the open state.

In step S112, a door closing time of the refrigerator door is determined in response to the refrigerator door being in a closed state.

Specifically, if it is detected that the refrigerator door is in a closed state at the current time, the duration of time that the refrigerator door is in a closed state is determined.

Illustratively, when the refrigerator 100 detects that the micro-switch is in the off state, a time period from a time point when the micro-switch is shifted from the on state to the off state to a current time point, that is, a time period when the refrigerator door is in the closed state is determined.

Optionally, a timing module is provided on the refrigerator 100, and controls the timing module to start timing when the micro switch is changed from the on state to the off state.

In step S113, the refrigerator 100 is controlled to strongly cool the storage compartment 111 in response to the closing time reaching the preset closing time.

The preset closing time is a time period from when the storage compartment 111 is closed to when it is restored to the normal freezing temperature or the refrigerating temperature again, and based on this, the preset closing time may be any feasible time, for example, 3min, 5min, 10min, etc.

As will be appreciated by those skilled in the art, since the high temperature food material, especially the food material with the higher specific heat capacity, the faster or slower heat dissipation, affects the cooling rate of the storage compartment 111, step S113 further includes:

in step S1131, in response to the closing time reaching the preset closing time, it is determined whether the evaporator 120 provides the cooling capacity to the storage compartment 111 and the cooling capacity is stopped at the current time.

Specifically, when the door closing time reaches the preset door closing time, it is determined whether the compressor has been rotated and/or whether a fan for supplying cold to the storage compartment 111 has been rotated.

In step S1132, the refrigerator 100 is controlled to strongly cool the storage compartment 111 in response to the evaporator 120 providing the cooling capacity to the storage compartment 111 and stopping providing the cooling capacity at the current time.

Specifically, when the compressor has been rotated and/or the fan for providing cold to the storage compartment 111 has been rotated and the compressor and the fan are both in an inactive state at the present time, the temperature of the storage compartment 111 is determined. Specifically, the temperature of the storage compartment 111 is detected by a temperature sensor.

Further, when the temperature of the storage compartment 111 rises to the temperature required to be cooled, the refrigerator 100 is controlled to strongly cool the storage compartment 111.

The temperature to be cooled is that the temperature of the storage compartment 111 is higher in the current cooling gear, and the evaporator 120 is required to provide cooling capacity for the storage compartment 111. If the storage compartment 111 does not receive cold, it will affect its freezing/refrigerating effect on the food material.

In step S120, a cooling time for the storage compartment 111 to decrease by a preset temperature is obtained.

The preset temperature may be any temperature that is feasible, for example, 0.5 ℃, 1 ℃, 1.2 ℃, 1.5 ℃, 2 ℃, etc.

Specifically, the temperature in the storage compartment 111 is obtained and counted at the time when the refrigerator 100 is strongly refrigerating the storage compartment 111, and when the temperature of the storage compartment 111 drops by a preset temperature, the time elapsed in the process is determined, and the time is the cooling time.

In step S130, in response to the cooling time being greater than or equal to the preset cooling time, the refrigerator 100 is controlled to defrost the evaporator 120.

The preset cooling time is greater than the conventional cooling time when the storage compartment 111 decreases the preset temperature, and the preset cooling time may be any feasible value, for example, the preset cooling time is 1.2 times, 1.5 times, 2 times, 3 times, and the like of the conventional cooling time. Or the preset cooling time is 30S, 1min, 3min, 5min, 10min and the like more than the conventional cooling time.

As shown in fig. 4, in some embodiments of the present invention, step S130 further includes:

step S131, determining a time interval between the current moment and the starting moment of the electricity consumption valley period in response to the cooling time being greater than or equal to the preset cooling time.

Specifically, when the cooling time is greater than or equal to the preset cooling time, determining a time interval between the current time and the starting time of the next electricity consumption valley period.

For purposes of this description, in the present invention, this time interval is denoted as t.

Step S132, determining a defrosting rate of the refrigerator 100 to the evaporator 120 according to the time interval.

Specifically, a ratio of the time interval to the defrosting cycle of the evaporator 120 is determined, and the ratio is determined as the defrosting rate.

In step S132, the defrosting cycle may be a time manually set and stored on the refrigerator 100, or may be an average value of a plurality of defrosting cycles before the refrigerator 100.

For the purposes of this description, in the present invention, the defrosting cycle is denoted as m and the defrosting rate is denoted as p.

In step S133, the refrigerator 100 is controlled to defrost the evaporator 120 according to the defrosting rate.

Illustratively, if the time when the refrigerator 100 completely defrostes the evaporator 120 is T, the refrigerator 100 is controlled to defrost the evaporator 120 for p·t time.

Those skilled in the art will appreciate that if p.T is too small, this will result in insufficient heating time of the evaporator 120, and thus in the evaporator 120 not reaching a temperature at which frost will melt. Therefore, when p·t is less than the preset threshold, the refrigerator 100 is controlled to defrost the evaporator 120 for a preset threshold time.

The preset threshold value can be obtained through experimental data. Specifically, the maximum amount of frost is condensed on the evaporator 120, and then the refrigerator 100 is controlled to heat the evaporator 120 and start timing. When frost on the evaporator 120 begins to melt, the recorded duration is taken as a preset threshold. In order to ensure the reliability of the preset threshold, this process may be repeated a plurality of times, with the average of the plurality of results being taken as the preset threshold.

Based on the foregoing description, it can be understood by those skilled in the art that in some embodiments of the present invention, when the evaporator 120 reaches the defrosting condition and the current time is in the off-low period, the refrigerator 100 is controlled to perform strong refrigeration on the storage compartment 111, then the cooling time of the storage compartment 111 for lowering the preset temperature is obtained, and when the cooling time is greater than or equal to the preset cooling time, the refrigerator 100 is controlled to defrost the evaporator 120, so that the refrigerator 100 can perform timely defrosting on the evaporator 120 when the off-low period and the refrigerating efficiency is low, thereby ensuring the refrigerating efficiency of the refrigerator 100.

Further, when the evaporator 120 reaches the defrosting condition and the current time is in the off-low period, determining the state of the refrigerator door; when the refrigerator door is in a closed state, determining the door closing time of the refrigerator door; and when the door closing time reaches the preset door closing time, controlling the refrigerator 100 to strongly refrigerate the storage compartment 111; the problem that the cooling rate of the storage compartment 111 is affected by heat rushing into the storage compartment 111 in the opening process of the refrigerator 100, so that the refrigerator 100 can be wrongly judged that the refrigerating efficiency is low, and defrosting can be wrongly started is avoided.

Still further, when the door closing time reaches the preset door closing time, by determining whether the evaporator 120 provides the cooling capacity for the storage compartment 111 and stops providing the cooling capacity at the current moment, and when the evaporator 120 provides the cooling capacity for the storage compartment 111 and stops providing the cooling capacity at the current moment, the refrigerator 100 is controlled to perform strong refrigeration on the storage compartment 111; the influence of the high-heat food material newly placed in the storage compartment 111 on the cooling rate of the refrigerator 100 is avoided.

Still further, when the temperature of the storage compartment 111 rises to the temperature required to be cooled, the refrigerator 100 is controlled to strongly cool the storage compartment 111, so that the cooling rate of the storage compartment 111 and thus the frosting condition of the evaporator 120 can be determined in the process of executing the original control strategy of the refrigerator 100, and the original procedure of the refrigerator 100 is prevented from being excessively modified.

It should be noted that, in some embodiments of the present invention, the control method described above may be implemented based on one storage compartment 111, or may be implemented based on a plurality of storage compartments 111.

When the control method of the present invention described above is implemented based on one storage compartment 111, the storage compartment 111 may be a freezing compartment, a refrigerating compartment, or a temperature changing compartment. The temperatures described in steps S110 to S130 are the temperatures of the one storage compartment 111.

When the control method described above of the present invention is implemented based on a plurality of storage compartments 111, each storage compartment 111 is required to satisfy the condition described in step S110, but only one storage compartment 111 is required to satisfy the conditions described in step S120 and step S130.

In addition, in still other embodiments of the present invention, the control method for delaying defrosting of a refrigerator further includes: in response to the defrosting rate being within the preset range, the refrigerator 100 is controlled to completely defrost the evaporator 120 again in the low electricity consumption period.

Wherein, the preset range is:

wherein,

in other words, n is an integer part of the quotient m/24.

m is the defrosting period and is greater than 24, and t is the time interval.

Further, in the present invention, the units of m, n, and t are all hours.

Based on the foregoing description, those skilled in the art will appreciate that, in comparison with some embodiments described above, still other embodiments of the present invention can also control the refrigerator 100 to continue defrosting the evaporator 120 during the electricity usage low valley period after controlling the refrigerator 100 to defrost the evaporator 120 at the defrosting rate, ensuring that the defrosting time of the refrigerator 100 is concentrated in the electricity usage low valley period.

In addition, in still other embodiments of the present invention, the control method for delaying defrosting of a refrigerator further includes: in controlling the refrigerator 100 to strongly cool the storage compartment 111, the refrigerator 100 is controlled to stop cooling in response to the refrigerator door being opened.

In other words, in the process of the refrigerator 100 strongly refrigerating the storage compartment 111, if it is detected that the refrigerator door is opened, the refrigerating of the evaporator 120 is interrupted, preventing the opening of the refrigerator door from affecting the detection of the cooling rate of the storage compartment 111, resulting in the refrigerator 100 erroneously determining that the refrigerating efficiency is low and thus erroneously opening the defrosting.

As shown in fig. 5, in other embodiments of the present invention, the refrigerator 100 further includes a memory 130 and a controller 140.

In the present embodiment, the memory 130 is used to store execution instructions, in particular computer programs that can be executed. Further, the execution instructions stored by the memory 130 are configured to, when executed by the controller 140, enable the refrigerator 100 to perform the control method described in any one of the embodiments above.

In this embodiment, the memory 130 may include a memory and a non-volatile memory (non-volatile memory), and provides the controller 140 with execution instructions and data. By way of example, the Memory may be a Random-Access Memory (RAM), and the non-volatile Memory may be at least 1 disk Memory.

In this embodiment, the controller 140 is an integrated circuit chip with the capability of processing signals. The controller 140 may be a general-purpose processor such as a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field-programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, a microprocessor, or any other conventional processor.

Thus far, the technical solution of the present invention has been described in connection with the foregoing embodiments, but it will be readily understood by those skilled in the art that the scope of the present invention is not limited to only these specific embodiments. The technical solutions in the above embodiments can be split and combined by those skilled in the art without departing from the technical principles of the present invention, and equivalent changes or substitutions can be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical principles and/or technical concepts of the present invention will fall within the protection scope of the present invention.

Claims (10)

1. A control method for delay defrosting of a refrigerator comprises a storage compartment and an evaporator for providing cold energy for the storage compartment; the control method comprises the following steps:

controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator reaching a defrosting condition and the current moment being in a non-electricity-consumption valley period;

acquiring the cooling time of the storage compartment for decreasing by a preset temperature;

and controlling the refrigerator to defrost the evaporator in response to the cooling time being greater than or equal to a preset cooling time.

2. The control method for delayed defrosting of a refrigerator according to claim 1, wherein,

and controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator reaching a defrosting condition and the current moment being in a non-power-consumption low-valley period, comprising:

determining a state of a refrigerator door in response to the evaporator reaching a defrosting condition and the current moment being in a non-electricity-use valley period;

determining a door closing time of the refrigerator door in response to the refrigerator door being in a closed state;

and controlling the refrigerator to forcedly cool the storage compartment in response to the closing time reaching a preset closing time.

3. The control method for delayed defrosting of a refrigerator according to claim 2, wherein,

and controlling the refrigerator to forcedly cool the storage compartment in response to the closing time reaching a preset closing time, including:

determining whether the evaporator provides cold for the storage compartment and stops providing cold at the current moment in response to the closing time reaching a preset closing time;

and controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator providing the cooling capacity for the storage compartment and stopping providing the cooling capacity at the current moment.

4. The control method for delayed defrosting of a refrigerator according to claim 3, wherein,

the controlling the refrigerator to forcedly cool the storage compartment in response to the evaporator providing the cooling capacity for the storage compartment and stopping providing the cooling capacity at the current moment comprises the following steps:

determining a temperature of the storage compartment in response to the evaporator providing cold to the storage compartment and stopping providing cold at a current time;

and controlling the refrigerator to forcedly cool the storage compartment in response to the temperature of the storage compartment rising to the temperature required to be cooled.

5. The control method for delayed defrosting of a refrigerator according to any one of claims 1 to 4, wherein,

the control method further includes:

and in the process of controlling the refrigerator to forcedly cool the storage compartment, controlling the refrigerator to stop refrigerating in response to the refrigerator door being opened.

6. The control method for delayed defrosting of a refrigerator according to any one of claims 1 to 4, wherein,

and controlling the refrigerator to defrost the evaporator in response to the cooling time being greater than or equal to a preset cooling time, including:

determining a time interval between the current moment and the starting moment of the electricity consumption valley period in response to the cooling time being greater than or equal to the preset cooling time;

determining the defrosting rate of the refrigerator to the evaporator according to the time interval;

and controlling the refrigerator to defrost the evaporator according to the defrosting rate.

7. The control method for delayed defrosting of a refrigerator according to claim 6, wherein,

and determining the defrosting rate of the refrigerator to the evaporator according to the time interval, wherein the method comprises the following steps:

determining a ratio of the time interval to a defrost cycle of the evaporator;

and determining the ratio as the defrosting rate.

8. The control method for delayed defrosting of a refrigerator according to claim 6, wherein,

the control method further includes:

and controlling the refrigerator to completely defrost the evaporator in the electricity consumption valley period in response to the defrosting rate being in a preset range.

9. The control method for delayed defrosting of a refrigerator according to claim 6, wherein,

the preset range is as follows:

wherein,

m is the defrosting period, and t is the time interval.

10. A refrigerator comprising a controller, a memory and execution instructions stored on the memory, the execution instructions being arranged, when executed by the controller, to enable the refrigerator to perform the control method of any one of claims 1 to 9.