Defrosting method and device of refrigeration equipment, storage medium and electronic equipment

Abstract

The present disclosure relates to a defrosting method and device of a refrigeration equipment, a storage medium and an electronic device. The method comprises obtaining a current power-on period, a current time, a target period and door opening time information of the refrigeration equipment in the target period; determining a current segment, which is a period segment in which the current time is located, the period segment being determined by at least one segmentation of the current power-on period based on a preset period and a preset time period; inferring a valley power period based on the target period and the door opening time information; determining a start time of a defrosting operation based on the valley power period and the current segment; and performing the defrosting operation based on the start time of the defrosting operation. The present disclosure can infer a valley power period according to the use habits of users without a network of the refrigeration equipment, reasonably arrange the refrigeration strategy and the execution time of the defrosting operation of the refrigerator to reduce energy consumption and electricity charges.

Description

Technical Field

[0001] This disclosure relates to the field of household appliance technology, and more particularly to defrosting methods, apparatus, storage media, and electronic devices for refrigeration equipment. Background Technology

[0002] During the operation of refrigeration equipment, the fan continuously circulates the air inside the refrigerator. In this process, moisture in the air condenses into frost upon contact with the cool evaporator, as in air-cooled inverter refrigerators. Due to this frost formation, after a period of continuous operation, the refrigeration equipment must be cleaned of the frost on the evaporator using specific methods. Otherwise, the frost on the evaporator surface will severely affect the heat exchange efficiency of the refrigeration system, thereby reducing the overall performance of the refrigeration equipment.

[0003] Currently, the common method for addressing evaporator frosting is to activate an auxiliary heater after the equipment has run for a fixed period to defrost. However, these auxiliary heaters typically have high power consumption. With technological advancements, the overall power consumption of refrigerators is decreasing, leading to a higher proportion of auxiliary heater power consumption during defrosting. This undoubtedly increases electricity bills for users, placing a financial burden on them. Furthermore, for non-networked refrigeration equipment, the lack of intelligent control mechanisms prevents flexible adjustments to defrosting strategies based on actual conditions, making it difficult to achieve energy-efficient defrosting. Summary of the Invention

[0004] To address at least one of the aforementioned technical problems, this disclosure provides a defrosting method, apparatus, storage medium, and electronic equipment for refrigeration equipment.

[0005] According to one aspect of this disclosure, a defrosting method for a refrigeration device is provided, comprising:

[0006] Obtain the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period;

[0007] The current segment is determined, which is the time period segment in which the current time is located. The time period segment is determined by dividing the current power-on time period at least once based on a preset cycle and a preset time period.

[0008] Inferring off-peak electricity periods based on the target time period and the door opening time information;

[0009] The start time of the defrosting operation is determined based on the off-peak electricity period and the current segment.

[0010] The defrosting operation is performed based on the start time of the defrosting operation.

[0011] In some possible implementations, inferring off-peak electricity periods based on the target time period and the door opening time information includes:

[0012] The target time period is segmented based on the preset time period to obtain multiple time segments;

[0013] The number of times the door is opened is determined for each time segment based on the door opening time information;

[0014] The off-peak electricity period is inferred based on the number of times the door is opened corresponding to the multiple time segments.

[0015] In some possible implementations, determining the start time of the defrosting operation based on the off-peak electricity period and the current segment includes:

[0016] Obtain the cumulative operating time of the compressor of the refrigeration equipment;

[0017] If the cumulative working time is greater than the first preset cumulative time, and the off-peak electricity period and the current segment overlap, the current time is determined as the start time of the defrosting operation.

[0018] In some possible implementations, the method further includes:

[0019] If the cumulative working time is greater than the first preset cumulative working time and less than or equal to the second preset cumulative working time, and the off-peak electricity period and the current segment do not overlap, it is detected whether the predicted cumulative working time is greater than the second preset cumulative working time. If the second preset cumulative working time is greater than the first preset cumulative working time, the predicted cumulative working time is the cumulative working time of the compressor when the start time of the off-peak electricity period is predicted based on the predicted segment working time. The predicted segment working time is determined based on the compressor working time corresponding to the two time segments above the current segment.

[0020] If so, determine the current time as the start time of the defrosting operation.

[0021] In some possible implementations, the method further includes:

[0022] If the predicted cumulative working time is less than or equal to the second preset cumulative time, the starting time of the off-peak electricity period is determined as the start time of the defrosting operation.

[0023] In some possible implementations, the method further includes:

[0024] If the cumulative working time is greater than the second preset cumulative time, and the off-peak electricity period and the current segment do not overlap, detect whether the next time segment of the current segment and the off-peak electricity period overlap.

[0025] If it exists, determine the start time of the next time segment of the current segment as the start time of the defrosting operation.

[0026] In some possible implementations, the method further includes:

[0027] If the cumulative working time is less than or equal to the first preset cumulative time and greater than the third preset cumulative time, the off-peak electricity period is divided based on the preset time period to obtain multiple off-peak electricity segments, and the third preset cumulative time is less than the second preset cumulative time.

[0028] If the current segment is within the target valley time segment, the current time is determined as the start time of the defrosting operation, and the target valley time segment is the two latest valley time segments among the multiple valley electricity periods.

[0029] In some possible implementations, the method further includes:

[0030] In response to the power-on of the refrigeration equipment, the initial temperature of the freezing zone of the refrigeration equipment is obtained;

[0031] If the initial temperature of the freezing zone is less than or equal to the first preset freezing temperature, the target power-on duration is obtained. The target power-on duration is used to characterize the power-on duration corresponding to the first shutdown of the compressor of the refrigeration equipment.

[0032] Detect whether the target power-on duration is greater than a first duration threshold;

[0033] If so, determine the current time as the start time of the defrosting operation.

[0034] In some possible implementations, the method further includes:

[0035] If the target power-on duration is less than or equal to the first duration threshold, detect whether the current time is in the off-peak power period;

[0036] If so, the current time is determined as the start time of the defrosting operation.

[0037] In some possible implementations, the method further includes:

[0038] If the current time is not during the off-peak electricity period, detect whether there is an overlap between the target future time period and the off-peak electricity period. The target future time period is a time period starting from the current time and with the first duration threshold as the duration.

[0039] If such a time exists, and the difference between the end time of the target future time period and the start time of the off-peak electricity period is greater than a preset duration threshold, the target time is determined as the start time of the defrosting operation. The time between the target time and the start time of the off-peak electricity period is the preset duration threshold. The target time is earlier than the start time of the off-peak electricity period and later than the current time.

[0040] In some possible implementations, the method further includes:

[0041] If the target power-on duration is less than or equal to the first duration threshold, and the off-peak electricity period does not meet the preset effective off-peak electricity conditions, the freezing stop duration and the refrigeration stop duration are obtained. The freezing stop duration is used to characterize the power-on duration corresponding to the last time the freezing zone of the refrigeration equipment stopped refrigeration, and the refrigeration stop duration is used to characterize the power-on duration corresponding to the last time the refrigeration zone of the refrigeration equipment stopped refrigeration.

[0042] If the difference between the first duration threshold and the module cooling duration meets a preset difference range, and the door of the refrigeration equipment is not opened within the preset time period of the module cooling duration, the current time is determined to be the start time of the defrosting operation, and the module cooling duration is the larger of the freezing stop duration and the refrigeration stop duration.

[0043] In some possible implementations, the method further includes:

[0044] If the difference between the first duration threshold and the module cooling duration is less than or equal to the minimum value of the preset difference range, the current time is determined as the start time of the defrosting operation.

[0045] In some possible implementations, the method further includes:

[0046] If the initial temperature of the freezing zone is greater than the second preset freezing temperature and less than or equal to the first preset freezing temperature, the ambient temperature is obtained, wherein the second preset freezing temperature is less than the first preset freezing temperature.

[0047] If the ambient temperature is less than or equal to a preset ambient temperature threshold, the first duration threshold is determined as the first threshold.

[0048] If the ambient temperature is greater than the preset ambient temperature threshold, the first duration threshold is determined to be the second threshold, and the second threshold is greater than the first threshold.

[0049] If the initial temperature of the freezing zone is less than or equal to the second preset freezing temperature, the first duration threshold is determined to be the third threshold, and the third threshold is less than the first threshold.

[0050] According to a second aspect of this disclosure, a defrosting apparatus for a refrigeration device is provided, the apparatus comprising:

[0051] The information acquisition module is used to acquire the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period.

[0052] The current segment determination module is used to determine the current segment, which is the time period segment in which the current time is located. The time period segment is determined by dividing the current power-on time period at least once based on a preset cycle and a preset time period.

[0053] The off-peak electricity period inference module is used to infer the off-peak electricity period based on the target time period and the door opening time information;

[0054] The start time determination module is used to determine the start time of the defrosting operation based on the off-peak electricity period and the current segment.

[0055] The defrosting operation module is used to perform the defrosting operation based on the start time of the defrosting operation.

[0056] According to a third aspect of this disclosure, an electronic device is provided, including at least one processor and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the at least one processor implements a defrosting method for a refrigeration device as described in any one of the first aspects by executing the instructions stored in the memory.

[0057] According to a fourth aspect of this disclosure, a computer-readable storage medium is provided that stores at least one instruction or at least one program, the at least one instruction or at least one program being loaded and executed by a processor to implement a defrosting method for a refrigeration device as described in any of the first aspects.

[0058] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0059] The following benefits will be gained from implementing this disclosure:

[0060] The system acquires information on the current power-on period, current time, target period, and door opening time of the refrigeration equipment during the target period. It determines the current segment, which is the time period segment in which the current time falls. The time period segment is determined by dividing the current power-on period at least once based on a preset cycle and preset time period. It infers off-peak electricity periods based on the target period and door opening time information. It also infers off-peak electricity periods based on historical door opening information during the target period, i.e., user usage habits of the refrigeration equipment, thus solving the problem of not being able to obtain off-peak electricity periods for refrigeration equipment not connected to the network. It determines the defrosting operation start time based on the off-peak electricity period and the current segment, and performs the defrosting operation based on the start time. Finally, it determines the energy-saving defrosting time based on the relationship between the current segment and the off-peak electricity period. Even when the refrigeration equipment is not connected to the network, it can infer off-peak electricity periods based on user usage habits and rationally arrange the refrigerator's cooling strategy and defrosting start time to reduce energy consumption and electricity costs.

[0061] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0062] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0063] Figure 1 A schematic flowchart of a defrosting method for a refrigeration device according to an embodiment of the present disclosure is shown.

[0064] Figure 2 A flowchart illustrating a method for inferring off-peak electricity hours according to an embodiment of the present disclosure is shown;

[0065] Figure 3 A flowchart illustrating a method for determining the start-up time based on cumulative working hours, off-peak electricity periods, and the current segment, according to an embodiment of the present disclosure, is shown.

[0066] Figure 4 A flowchart illustrating a method for determining startup time based on cumulative working time and predicted cumulative working time according to an embodiment of the present disclosure is shown.

[0067] Figure 5 A flowchart illustrating a method for determining startup time based on a preset cumulative working time according to an embodiment of the present disclosure is shown.

[0068] Figure 6 A flowchart illustrating a method for determining the start time based on the next time segment of the current segment according to an embodiment of the present disclosure is shown.

[0069] Figure 7 A flowchart illustrating a method for determining the start time based on target valley time segments according to an embodiment of the present disclosure is shown.

[0070] Figure 8 A flowchart illustrating a method for determining startup time based on a target power-on duration according to an embodiment of the present disclosure is shown.

[0071] Figure 9 A flowchart illustrating a method for determining the start-up time based on the current time and off-peak electricity hours according to an embodiment of the present disclosure is shown.

[0072] Figure 10 A flowchart illustrating a method for determining a start time based on a target future time period according to an embodiment of the present disclosure is shown.

[0073] Figure 11 A flowchart illustrating a method for determining start-up time based on freezing stop time and refrigeration stop time according to an embodiment of the present disclosure is shown.

[0074] Figure 12 A flowchart illustrating a method for determining start-up time based on module cooling duration according to an embodiment of the present disclosure is shown.

[0075] Figure 13 A flowchart illustrating a method for determining a first duration threshold based on the initial temperature of the freezing zone according to an embodiment of the present disclosure is shown.

[0076] Figure 14 This diagram shows a structural schematic of a defrosting device for a refrigeration apparatus according to an embodiment of the present disclosure;

[0077] Figure 15 A block diagram of an electronic device according to an embodiment of the present disclosure is shown. Detailed Implementation

[0078] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0079] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "existing," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0080] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0081] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0082] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0083] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0084] Figure 1 This diagram illustrates a flow chart of a defrosting method for a refrigeration device according to an embodiment of the present disclosure. Figure 1 As shown, the above method includes:

[0085] S101. Obtain the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period;

[0086] The refrigeration equipment can be an air-cooled variable frequency refrigeration equipment. The refrigeration equipment includes, but is not limited to, a compressor and evaporator for achieving refrigeration, a defrosting heating tube for heating and melting frost, a temperature monitor for acquiring the temperature of different modules of the refrigeration equipment, a timing unit for managing time, a storage module for storing data, and a controller for controlling the operation of the whole machine. The main execution body of this machine is the controller of the refrigeration equipment.

[0087] The timing unit acquires the current power-on period and the current time, and retrieves the door opening time information corresponding to the target period from the storage module. The current power-on period represents the time interval from the initial power-on time of the refrigeration equipment to the current time. The door opening time information includes the time information corresponding to each door opening within the target period. The target period is the time interval corresponding to historical power-on.

[0088] In some embodiments, the refrigeration equipment includes, but is not limited to, household inverter refrigerators, ice makers, and commercial freezers. The target time period can be a specified time period within the previous power-on period. For example, the target time period can be a 24-hour period corresponding to the previous power-on period.

[0089] S102. Determine the current segment. The current segment is the time period segment in which the current time is located. The time period segment is determined by dividing the current power-on time period at least once based on a preset cycle and a preset time period.

[0090] In response to the power-on status of the refrigeration equipment, the initial temperature of the freezing zone of the refrigeration equipment is obtained. If the initial temperature of the freezing zone is greater than the first preset freezing temperature, it indicates that the refrigeration equipment has not been cooling for a long time or is being powered on for the first time, and it is determined that the refrigeration equipment does not require the first defrosting operation. The current power-on period is divided. If the current power-on period is divided into segments based on a preset period, the target power-on period is obtained. The target power-on period is the last segment. The target power-on period is then divided into segments based on the preset period, resulting in at least one time period segment. The time period segment in which the current time is located is determined as the current segment.

[0091] In some embodiments, if the current power-on period is from 8:00 AM on January 20, 2025 to the present, the preset period can be 24 hours. Based on 24 hours, the period from 1:00 PM on January 20, 2025 to the present is divided into segments, and the target power-on period is from 8:00 AM on the present to the present time. The preset period can be 2 hours. The target power-on period is then divided a second time to obtain N1[8,10), N2[10,12)...NK, where NK is the segment where the current time is located, i.e., the current segment.

[0092] S103. Inferring off-peak electricity periods based on target time periods and door opening time information;

[0093] The door opening time information includes the time information corresponding to each valid door opening within the target time period; valid door opening is used to indicate door opening actions where the opening time is greater than the preset door opening duration. The target time period is the power-on period corresponding to the preset power-on cycle.

[0094] In some embodiments, the preset door opening duration can be 10 seconds, and the target time period can be a specified time period within the previous power-on period. If the refrigeration equipment is not connected to the network, the target time period is divided into multiple time segments based on preset segments. The number of door openings corresponding to each time segment is counted based on the door opening time information. If there are multiple time segments with a number of door openings less than or equal to a preset number, the continuous time segment with the fewest number of door openings and the most time segments is taken as the off-peak electricity period.

[0095] In some embodiments, if there are multiple preset periods for the target time period, the target time period is first divided based on the preset periods to obtain multiple sub-target time periods. Each sub-target time period is then divided a second time based on the preset periods to obtain multiple time segments corresponding to each sub-target time period. Off-peak electricity periods are determined based on these multiple time segments. For example, if the target time period is 3 days, it is divided into 3 24-hour sub-target time periods based on the preset period of 2 hours. Each 24-hour sub-target time period is then divided into 12 time segments (P1, P2, ..., P12) based on the preset period of 2 hours. If, in the 3 sub-target time periods, the number of door openings in consecutive target segments P8-P9 in the first sub-target time period is 0, the number of door openings in consecutive target segments P5-P10 in the second sub-target time period is 0, and the number of door openings in consecutive target segments P1-P12 in the second sub-target time period is 0, then the consecutive target segments P8-P9 with the most frequent occurrences and all 0 door openings in the 3 sub-target time periods are determined as the off-peak electricity period. By statistically analyzing user usage habits during multiple power-on periods, the final off-peak electricity time period can be determined, thereby improving the accuracy of off-peak electricity time period determination.

[0096] In other embodiments, if the refrigeration equipment is a network-connected device, it can directly obtain the current time and local off-peak electricity hours via the network. For example, the local off-peak electricity hours are from 10 PM to 8 AM the next day; the peak electricity hours are from 8 AM to 10 PM, where the electricity cost during off-peak hours is lower than that during peak hours.

[0097] S104. Determine the start time of the defrosting operation based on the off-peak electricity period and the current segment;

[0098] The defrosting operation includes a pre-cooling process and a defrosting process. The pre-cooling process involves cooling the refrigeration and freezing zones until the freezer temperature reaches the preset freezing temperature. The preset freezing temperature is a preset number of degrees lower than the preset freezer shutdown temperature. The preset freezer shutdown temperature is the temperature at which the freezing zone stops cooling during the operation of the variable frequency refrigeration equipment.

[0099] The refrigeration process of the refrigeration equipment is as follows: when the temperature in the refrigerator compartment is higher than the preset refrigerator start-up temperature (e.g., 5°C), the refrigerator compartment requests cooling; when the temperature in the refrigerator compartment is lower than the preset refrigerator stop-off temperature (e.g., 3°C), the refrigerator compartment stops requesting cooling. The refrigeration principle for the freezer compartment is the same: when the temperature in the freezer compartment is higher than the preset freezer start-up temperature (e.g., -16°C), the freezer compartment requests cooling; when the temperature in the freezer compartment is lower than the preset freezer stop-off temperature (e.g., -18°C), if the preset temperature is 2°C, then the preset freezer temperature is -20°C.

[0100] S105. Perform defrosting operation based on the start time of the defrosting operation.

[0101] In response to the startup time, the defrosting operation is initiated. First, a pre-cooling process is performed, and the freezer requests cooling until the freezer temperature reaches the preset freezing temperature. Then, cooling is stopped, the compressor is turned off, and the defrosting heating element is turned on to start the defrosting process.

[0102] In some embodiments, the preset freezing temperature is a preset degree lower than the preset freezing shutdown temperature. For example, the preset freezing temperature is -20°C. The normal defrosting process involves the compressor stopping, the defrosting heating element being turned on, and defrosting continuing until the defrosting time meets the time condition, for example, 60 minutes, or the temperature measured by the defrosting temperature sensor reaches the temperature condition, such as the defrosting sensor temperature reaching the exit temperature, for example, 8°C. Then, the defrosting heating element is controlled to stop heating, and cooling is resumed only after the frost has melted for a preset melting time, for example, 7 minutes.

[0103] Taking a dual-system refrigeration system as an example, when the compressor is working, if the refrigeration zone requests cooling, the refrigerant flows through the evaporator of the refrigeration zone to cool the refrigeration zone, and then flows through the evaporator of the freezing zone before finally returning to the compressor; if only the freezing zone requests cooling, the refrigerant flows through the evaporator of the freezing zone to cool the freezing zone before finally returning to the compressor.

[0104] The above technical solution infers off-peak electricity hours based on historical door opening information for the target time period, i.e., user habits of using refrigeration equipment, thus solving the problem of unconnected refrigeration equipment being unable to obtain off-peak electricity hours. Then, it determines the energy-saving defrosting time based on the relationship between the current segment and off-peak electricity hours. Even when the refrigeration equipment is not connected to the network, it can infer off-peak electricity hours based on user habits and rationally arrange the refrigerator's cooling strategy and defrosting activation time to reduce energy consumption and electricity costs.

[0105] Please see Figure 2 In some embodiments, S103 includes:

[0106] S1031. The target time period is segmented based on a preset time period to obtain multiple time segments;

[0107] S1032. Determine the number of times the door is opened for each time segment based on the door opening time information;

[0108] S1033. Infer the off-peak electricity period based on the number of times the door is opened corresponding to multiple time segments.

[0109] The target time period is the power-on period corresponding to the preset power-on cycle. The duration of the preset time period is shorter than the duration of the target time period. Based on the preset time period, the target time period is divided into multiple time segments. The number of door openings corresponding to each valid door opening is counted according to the time information of each valid door opening in the door opening time information. If there are multiple time segments with a number of door openings less than or equal to a preset number (the preset number can be 3 times), the continuous time segment with the fewest door openings and the most time segments is designated as the off-peak electricity period. If there are multiple time segments with a number of door openings greater than the preset number, it is determined that the whole machine is used frequently. If the whole machine is used frequently, a defrosting operation is performed when the cumulative working time of the compressor exceeds a fourth preset cumulative time. For example, the fourth preset cumulative time can be 10 hours.

[0110] In some embodiments, the target time period can be a specified 24-hour period within the previous power-on period, or it can be a specified period within the current power-on period. The preset time period can be 2 hours. Based on the preset time period, the target time period is divided into time segments T1[1,3), T2[3,5)...T12[23,1). The number of door openings corresponding to each time segment from T1 to T12 is counted based on the door opening time information. For example, T1 is 0 times, T2 is 0 times, T3 is 3 times, T4 is 1 time, T5 is 5 times, T6 is 2 times, T7 is 2 times, T8 is 3 times, T9 is 1 time, T10 is 0 times, T11 is 1 time, and T12 is 0 times. In this way, the continuous time segment T12-T2 with the fewest number of door openings and the most time segments is inferred to be the off-peak electricity period.

[0111] In some embodiments, the power-on period of the refrigeration equipment is segmented into time periods, and the segmentation period is recorded cyclically. For example, the segmentation period includes 12 time segments, denoted as D1...D12, and the number of times the refrigeration equipment door is opened for more than 10 seconds is recorded. For example, the door is opened twice in time segment D2, three times in time segment D5, and once in time segment D7. The door is not opened in the remaining time segments. Then, the time segment with the longest number of door openings of 0 in the previous period of the current segmentation period is found to be the off-peak electricity period, for example, the off-peak electricity period is the time segment D8-D1. If there are door openings in all time segments and the minimum number of door openings is >3, it is determined that the whole unit is used frequently. Then, when the cumulative working time of the compressor is greater than a fourth preset cumulative time, a defrosting operation is performed. For example, the first time threshold can be 10 hours. Otherwise, the number of door openings in all time periods is decremented by 1 and the judgment is repeated until the longest continuous time segment with 0 door openings is found. If none of the users open the door during the time segments D1-D12, then the determination of the previous cycle shall prevail.

[0112] If the refrigeration unit has not been opened since its first power-on, a defrosting operation will be performed when the cumulative operating time of the compressor exceeds the second time threshold. For example, the second time threshold can be 16 hours.

[0113] The above technical solution can infer off-peak electricity periods based on the historical usage of the refrigeration equipment when the equipment cannot be connected to the network to obtain off-peak electricity periods. This allows for the rational arrangement of the refrigerator's refrigeration strategy and defrosting activation time during off-peak electricity periods, thereby reducing energy consumption and electricity costs.

[0114] Please see Figure 3 In some embodiments, S104 includes:

[0115] S411. Obtain the cumulative operating time of the compressor of the refrigeration equipment;

[0116] S412. If the cumulative working time is greater than the first preset cumulative time, and there is an overlap between the off-peak electricity period and the current segment, determine the current time as the start time of the defrosting operation.

[0117] As can be seen from the working mode of the variable frequency refrigeration equipment, when the freezing zone requests to stop refrigeration and the refrigeration zone requests to stop refrigeration, the compressor will stop working. When the freezing zone requests refrigeration or the refrigeration zone requests refrigeration, the compressor will start working. Therefore, the cumulative working time of the compressor is used to characterize the cumulative time that the compressor works when the refrigeration equipment is powered on. The cumulative working time of the compressor returns to the initial value of 0 after the defrosting operation is completed, that is, after the defrosting process is completed.

[0118] In some embodiments, when the cumulative operating time exceeds a first preset cumulative time, and there is an overlap between the off-peak electricity period and the current segment, the current time is determined as the defrosting operation start time, and the defrosting operation is immediately initiated. This involves first performing a pre-cooling process, and after the pre-cooling process is completed, the compressor is turned off, and the defrosting heating element is turned on to perform the defrosting process. After the defrosting process is completed, the cumulative operating time is reset to 0. The first preset cumulative time can be 10 hours.

[0119] The above technical solution rationally schedules the defrosting start time based on the compressor's cumulative working time and off-peak electricity periods, thus saving users' electricity expenses.

[0120] Please see Figure 4 In some embodiments, the method further includes:

[0121] S421. If the cumulative working time is greater than the first preset cumulative time and less than or equal to the second preset cumulative time, and there is no overlap between the off-peak electricity period and the current segment, check whether the predicted cumulative working time is greater than the second preset cumulative time. If the second preset cumulative time is greater than the first preset cumulative time, the predicted cumulative working time is the cumulative working time of the compressor when the starting time of the off-peak electricity period is predicted based on the predicted segment working time. The predicted segment working time is determined based on the compressor working time corresponding to the two time segments above the current segment.

[0122] S422. If so, determine the current time as the start time of the defrosting operation.

[0123] If the cumulative operating time falls between the first preset cumulative operating time and the second preset cumulative operating time, and the off-peak electricity period does not overlap with the current segment, the system checks whether the compressor's predicted cumulative operating time exceeds the second preset cumulative operating time when the off-peak electricity period arrives. If so, defrosting is initiated immediately. The second preset cumulative operating time is longer than the first preset cumulative operating time, and the second preset cumulative operating time can be 14 hours.

[0124] In some embodiments, the compressor operating time corresponding to the two time segments preceding the current segment is obtained, the average operating time of the compressor operating time corresponding to the two time segments preceding the current segment is used as the predicted segment operating time, and the predicted cumulative operating time corresponding to the arrival of the off-peak electricity period is determined based on the predicted segment operating time.

[0125] In some embodiments, the cumulative operating time is estimated based on the compressor operating time of the previous two time segments of the current segment. For example, if the current time segment is N7 with a cumulative operating time E1 = 12 hours, and the compressor operating time during the N5-N6 period is 2.2 hours, with an average operating time of 1.1 hours (i.e., the predicted segment operating time) during the N5-N6 period, then the estimated cumulative operating time E1 for the N8 time segment could reach 12 + 1.1 = 13.1 hours, for the N9 time segment it could reach 14.2 hours, and for the N1 time segment it could reach 18.6 hours. Similarly, if the estimated cumulative operating time E1 reaches 16 hours, the current time segment is N10. The estimated data is updated for each time segment. In this way, the predicted cumulative operating time of the compressor during off-peak electricity hours can be estimated.

[0126] The above technical solution determines the start time of the defrosting operation based on the cumulative working time of the compressor and the predicted cumulative working time corresponding to the off-peak electricity period. From a macro perspective, the refrigeration strategy is reasonably arranged. When the compressor runs during the off-peak electricity period, the cumulative working time is greater than the compressor's load capacity. Therefore, the defrosting operation is started in time to reduce energy consumption.

[0127] Please see Figure 5 In some embodiments, the method further includes:

[0128] S431. If the predicted cumulative working time is less than or equal to the second preset cumulative time, determine the starting time of the off-peak electricity period as the start time of the defrosting operation.

[0129] If the cumulative working time is between the first preset cumulative working time and the second preset cumulative working time, and there is no overlap between the off-peak electricity period and the current segment, when the off-peak electricity period is detected, the predicted cumulative working time of the compressor is less than or equal to the second preset cumulative working time. At this time, the original working mode of the refrigeration equipment continues to operate until the off-peak electricity period is reached, and then the defrosting operation is performed, including the pre-cooling process and the defrosting process.

[0130] The above technical solution determines the start time of the defrosting operation based on the compressor's cumulative operating time and the predicted cumulative operating time corresponding to the off-peak electricity period. From a macro perspective, the refrigeration strategy is reasonably arranged. When the compressor is running during the off-peak electricity period, the cumulative operating time is less than the compressor's load capacity. Therefore, the defrosting operation is started when the compressor is running during the off-peak electricity period to reduce electricity costs.

[0131] Please see Figure 6 In some embodiments, the method further includes:

[0132] S441. If the cumulative working time is greater than the second preset cumulative time, and there is no overlap between the off-peak electricity period and the current segment, check whether there is an overlap between the next time segment of the current segment and the off-peak electricity period.

[0133] S442. If it exists, determine the start time of the next time segment of the current segment as the start time of the defrosting operation.

[0134] If the compressor's cumulative operating time exceeds the second preset cumulative time, and there is no overlap between the off-peak electricity period and the current segment, determine whether there is an overlap between the next time segment and the off-peak electricity period. If there is, proceed to the next time segment to perform the defrosting operation. If there is still no off-peak electricity period in the next time segment, use the current time as the start time for the defrosting operation, and begin defrosting immediately.

[0135] If the compressor's cumulative operating time exceeds the second preset cumulative time, and there is an overlap between the current segment and the off-peak electricity period, defrosting will be performed immediately.

[0136] The above technical solution determines whether there is a valley electricity time in the next segment if there is no valley electricity time in the current segment, taking into account both the valley electricity time period and the cumulative running time to balance the load and power consumption of the refrigeration equipment.

[0137] Please see Figure 7 In some embodiments, the method further includes:

[0138] S451. If the cumulative working time is less than or equal to the first preset cumulative time and greater than the third preset cumulative time, the off-peak electricity period is divided based on the preset time period to obtain multiple off-peak electricity segments, and the third preset cumulative time is less than the second preset cumulative time.

[0139] S452. If the current segment is in the target valley time segment, determine the current time as the start time of the defrosting operation, and the target valley time segment is the two latest valley time segments among multiple valley electricity periods.

[0140] If the cumulative working time falls between the third preset cumulative time and the first preset cumulative time, and the third preset cumulative time is less than the first preset cumulative time, and if the current segment is in an off-peak electricity period, and is one of the last two off-peak electricity segments, then to save electricity costs, the current time will be used as the start time for the defrosting operation, and the pre-cooling and defrosting processes will begin immediately. If the current segment is not in an off-peak electricity period, or is not one of the last two off-peak electricity segments, then the refrigeration equipment will continue to operate in its original module until other defrosting conditions are met.

[0141] In some embodiments, the off-peak electricity period is divided into time segments D8-D1. If the current segment is D12 or D1, defrosting will be performed immediately. The preset time period is shorter than the off-peak electricity period.

[0142] The above technical solution, when the cumulative working time meets the time requirement, will immediately perform defrosting to prevent missing off-peak electricity hours and save on electricity consumption.

[0143] Please see Figure 8 In some embodiments, the method further includes:

[0144] S201. In response to the power-on status of the refrigeration equipment, obtain the initial temperature of the freezing zone of the refrigeration equipment;

[0145] S202. If the initial temperature of the freezing zone is less than or equal to the first preset freezing temperature, obtain the target power-on duration. The target power-on duration is used to characterize the power-on duration corresponding to the first shutdown of the compressor of the refrigeration equipment.

[0146] S203. Detect whether the power-on duration of the target exceeds the first duration threshold.

[0147] S204. If so, determine the current time as the start time of the defrosting operation.

[0148] If the initial temperature of the freezer compartment is less than or equal to the first preset freezing temperature, it is determined that the refrigeration equipment needs to perform its first defrost operation. Each refrigeration compartment of the refrigeration equipment is cooled to its corresponding shutdown temperature. The target power-on duration corresponding to the first compressor shutdown is obtained. For example, if the temperature of the refrigerator compartment is lower than the preset refrigerator shutdown temperature, the refrigerator compartment stops requesting cooling; if the temperature of the freezer compartment is lower than the preset freezer shutdown temperature, the freezer compartment stops requesting cooling. It is then checked whether the target power-on duration is greater than a first duration threshold. If the target power-on duration is greater than the first duration threshold, the first defrost operation is performed. The defrost operation includes a pre-cooling process and a defrosting process.

[0149] The target power-on duration is the power-on duration of the refrigeration equipment when the compressor first shuts down after all refrigeration zones have cooled to their corresponding shutdown temperatures. The first duration threshold is determined based on the initial temperature of the freezing zone. For example, the first preset freezing temperature can be 2 degrees Celsius.

[0150] In some embodiments, during the initial defrosting operation, if the power-on duration corresponding to the current power-on period is equal to a first duration threshold during the pre-cooling process, the pre-cooling process is immediately stopped and the defrosting process begins.

[0151] The above technical solution determines whether initial defrosting is needed based on the initial temperature of the freezing zone when the refrigeration equipment is powered on. If so, the timing of the initial defrosting is determined based on the power-on duration corresponding to the compressor shutdown, ensuring the normal load operation of the refrigeration equipment.

[0152] Please see Figure 9 In some embodiments, the method further includes:

[0153] S211. If the target power-on duration is less than or equal to the first duration threshold, check whether the current time is during off-peak hours.

[0154] S212. If in a certain state, determine the current time as the start time of the defrosting operation.

[0155] If the refrigeration equipment is connected to the network, it can obtain off-peak electricity periods. If the refrigeration equipment is not connected to the network, it can obtain off-peak electricity periods inferred from the target time period and door opening time information from the storage module, confirm the existence of off-peak electricity periods, and successfully obtain off-peak electricity periods.

[0156] If the target power-on duration is less than or equal to the first duration threshold, and the off-peak power period exists, check whether the current time is in the off-peak power period. If it is, immediately perform the first defrosting operation.

[0157] If the target power-on duration meets the power-on duration condition and the current time is during off-peak electricity hours, the first defrosting operation will be performed immediately to ensure the temperature requirements of the refrigeration equipment while saving electricity consumption.

[0158] Please see Figure 10 In some embodiments, the method further includes:

[0159] S221. If the current time is not during off-peak hours, detect whether the target future time period overlaps with the off-peak hours. The target future time period is a time period starting from the current time and with a first duration threshold as the duration.

[0160] S222. If it exists, and the difference between the end time of the target future time period and the start time of the off-peak time period is greater than the preset duration threshold, determine the target time as the start time of the defrosting operation. The duration between the target time and the start time of the off-peak time period is the preset duration threshold. The target time is earlier than the start time of the off-peak time period and later than the current time.

[0161] If the target power-on duration is less than or equal to the first duration threshold, the off-peak electricity period is obtained. If the current time is not in the off-peak electricity period, it is detected whether there is an off-peak electricity period in the target future period with the current time as the starting point and the first duration threshold as the duration. If there is, and the end time of the target future period meets the condition of the distance between the start time of the off-peak electricity period and the end time of the off-peak electricity period, the target time is determined as the start time of the first defrosting operation between the current time and the start time of the off-peak electricity period. That is, the refrigeration equipment continues to operate in its original mode until the target time, and then the defrosting operation is started.

[0162] If there is no off-peak electricity period within the target future timeframe, the initial defrosting operation will be performed as if the off-peak electricity period does not meet the preset effective off-peak electricity conditions. Specifically, refer to the relevant steps for determining the start time of the initial defrosting operation, beginning with step S231.

[0163] In some embodiments, if the target power-on duration is less than or equal to the first duration threshold Q1, the off-peak electricity period is acquired. If it is detected that the current time K1 is not within the off-peak electricity period, it is determined whether there is off-peak electricity time within the period from K1 to K1+Q1. If it exists, K1<K2<K1+Q1, and K1+Q1-K2>S3, where K2 is the start time of the off-peak electricity period, S3 is a preset duration threshold, for example, the preset duration threshold is 20 minutes; then the entire unit performs cooling until K2-S3, and then performs the defrosting operation, that is, a pre-cooling process is performed first, and then the defrosting process is performed.

[0164] In the above technical solution, the defrosting process is reasonably arranged to be carried out in the off-peak electricity period, so as to reduce energy consumption and electricity cost.

[0165] Refer to Figure 11 , in some embodiments, the method further comprises:

[0166] S231. If the target power-on duration is less than or equal to the first duration threshold, and the off-peak electricity period does not meet the preset valid off-peak electricity condition, acquire the freezing stop duration and the refrigeration stop duration. The freezing stop duration is used to represent the power-on duration corresponding to the most recent stop of cooling in the freezing compartment of the refrigeration apparatus, and the refrigeration stop duration is used to represent the power-on duration corresponding to the most recent stop of cooling in the refrigerating compartment of the refrigeration apparatus;

[0167] S232. If the difference between the first duration threshold and the module cooling duration meets the preset difference range, and the door of the refrigeration apparatus is not opened within the preset time period of the module cooling duration, determine the current time as the start time of the defrosting operation, wherein the module cooling duration is the longer one of the freezing stop duration and the refrigeration stop duration.

[0168] If the refrigeration apparatus is a non-networked device, when the refrigeration apparatus is powered on for the first time, if there is no historical operation data, such as door opening time information, at this time, the acquisition of the target period and the door opening time information corresponding to the target period fails, the off-peak electricity period cannot be inferred, so that the acquisition of the off-peak electricity period fails. The preset valid off-peak electricity condition may be that the duration corresponding to the off-peak electricity period is greater than or equal to the preset off-peak electricity duration. For example, the preset off-peak electricity duration may be 1 hour. If the acquisition of the off-peak electricity period fails, or the duration corresponding to the off-peak electricity period is less than the preset off-peak electricity duration, it is determined that the off-peak electricity period does not meet the preset valid off-peak electricity condition.

[0169] If the off-peak electricity period does not meet the preset valid off-peak electricity condition, and the target power-on duration is less than or equal to the first duration threshold, the power-on duration corresponding to the most recent stop of cooling in the refrigerating compartment, i.e., the refrigeration stop duration, and the power-on duration corresponding to the most recent stop of cooling in the freezing compartment, i.e., the freezing stop duration, are acquired. The longer one of the refrigeration stop duration and the freezing stop duration is taken as the module cooling duration. Then it is detected whether the difference between the first duration threshold and the module cooling duration meets the preset difference range. If the difference is met, it is detected whether the door of the refrigeration apparatus is opened within the preset time period of the module cooling duration. If the door is not opened, the first defrosting operation is performed immediately; if the door is opened, the operation continues in the original mode, and the refrigeration stop duration and the freezing stop duration are updated until the condition for the first defrosting operation is satisfied.

[0170] In some embodiments, if the off-peak electricity period does not meet the preset valid off-peak electricity condition, and the target power-on duration is less than or equal to the first duration threshold, the refrigeration stop duration M1 and the freezing stop duration M2 are recorded, and the maximum value of M1 and M2 is taken as the module cooling duration M3. The preset difference range is (S1, S2). If S1<Q1-M2<=S2, for example, S1 is 1 hour and S2 is 2 hours, it is detected whether the door of the refrigeration apparatus has been opened within the first 30 minutes of the power-on duration M3. If the door has not been opened, the defrosting operation is performed immediately, and the defrosting operation includes a pre-cooling process and a defrosting process; if the door has been opened, it is determined that cold air of the refrigeration apparatus escapes and the user may open the door again, the operation continues in the original cooling mode, and the values of M1 and M2 are updated.

[0171] According to the above technical solution, the timing of the first defrosting is determined in combination with the working condition of the whole machine load and the use condition of the door switch of the refrigeration apparatus, so as to avoid performing the defrosting operation during the period when the user uses the refrigeration apparatus, and ensure that the temperature of the food stored in the refrigeration apparatus meets the user's demand.

[0172] Please refer to Figure 12 , in some embodiments, the method further comprises:

[0173] S241. If the difference between the first duration threshold and the module cooling duration is less than or equal to the minimum value of the preset difference range, the current time is determined as the start time of the defrosting operation.

[0174] If the off-peak electricity period does not meet the preset valid off-peak electricity condition, the target power-on duration is less than or equal to the first duration threshold, and the difference between the first duration threshold and the module cooling duration is less than or equal to the minimum value of the preset difference range, the first defrosting operation is performed immediately.

[0175] In some embodiments, if the difference between the first duration threshold and the module cooling duration is greater than the maximum value of the preset difference range, the operation continues in the original cooling mode, and the refrigeration stop duration and the freezing stop duration are updated until the condition for the first defrosting operation is satisfied.

[0176] In some embodiments, the refrigeration stop time M1 and the freezing stop time M2 are recorded. The maximum value between M1 and M2 is taken as the module cooling time M3, with a preset difference range of (S1, S2). If Q1-M2<=S1, the first defrosting operation is initiated. If Q1-M2>S2, the original cooling mode continues to operate, and the values ​​of M1 and M2 are updated.

[0177] In the above technical solution, if the target power-on time is less than or equal to the first time threshold after the refrigeration equipment is powered on, and the power-on time of the area in the refrigeration or freezing zone that stops refrigeration last is less than the time of the first time threshold, the defrosting operation is started immediately to prevent the frost on the evaporator in the refrigeration equipment from becoming too thick, which would affect the heat exchange of the refrigeration equipment and increase the load on the refrigeration equipment.

[0178] Please see Figure 13 In some embodiments, the method further includes:

[0179] S251. If the initial temperature of the freezing zone is greater than the second preset freezing temperature and less than or equal to the first preset freezing temperature, obtain the ambient temperature, where the second preset freezing temperature is less than the first preset freezing temperature.

[0180] S2511. If the ambient temperature is less than or equal to the preset ambient temperature threshold, determine the first duration threshold as the first threshold.

[0181] S2512. If the ambient temperature is greater than the preset ambient temperature threshold, determine the first duration threshold as the second threshold, and the second threshold is greater than the first threshold.

[0182] If the initial temperature of the freezing zone is less than or equal to the second preset freezing temperature, the first duration threshold is determined as the third threshold, and the third threshold is less than the first threshold.

[0183] The method for determining the first duration threshold based on the initial temperature of the freezer compartment is as follows: If the initial temperature of the freezer compartment is greater than the second preset freezing temperature but less than or equal to the first preset freezing temperature, it indicates that the refrigeration equipment has previously cooled, but has not cooled for a long time, causing the temperature to rise again, requiring the first defrost. At this time, the ambient temperature continues to be monitored. If the ambient temperature is less than or equal to the preset ambient temperature, the first duration threshold is set as the first threshold; if the ambient temperature is greater than the preset ambient temperature threshold, the first duration threshold is determined as the second threshold. If the initial temperature of the freezer compartment is less than or equal to the second preset freezing temperature, it indicates that the refrigerator was in working condition not long ago, but unexpectedly lost power, requiring the first defrost, and the first duration threshold is set as the third threshold, where the third threshold < the first threshold < the second threshold.

[0184] In some embodiments, the initial defrosting determination is performed by reading the ambient temperature A and the initial temperature B of the freezing zone after the refrigeration equipment is powered on. If the initial temperature B of the freezer compartment is less than or equal to the second preset freezing temperature T1 (for example, the second preset freezing temperature T1 can be -8 degrees Celsius), it is determined that the refrigeration equipment was previously in working condition but unexpectedly lost power, and the first defrost is required. The first duration threshold Q1 is set as the third threshold (for example, the third threshold can be 5 hours). If the initial temperature B of the freezer compartment is greater than or equal to the first preset freezing temperature T2 (for example, the first preset freezing temperature can be 2 degrees Celsius), it is considered that the refrigerator has not cooled for a long time or is the first time the user has powered it on, and the first defrost is not required. The start time of the defrost operation is determined based on the off-peak electricity period and the current segment. If the second preset freezing temperature T1 is less than or equal to the initial temperature B of the freezer compartment and less than or equal to the first preset freezing temperature T2, it indicates that the refrigerator has previously cooled, but the temperature has risen due to the long period of no cooling, and the first defrost is required. If the ambient temperature A is greater than the preset ambient temperature threshold (for example, the preset ambient temperature threshold can be 20 degrees Celsius), the first duration threshold Q1 is set as the second threshold (for example, the second threshold can be 12 hours). If the ambient temperature A is less than or equal to the preset ambient temperature threshold, the first duration threshold Q1 is set as the first threshold (for example, the first threshold can be 10 hours).

[0185] The above technical solution infers the cooling status of the refrigeration equipment based on the initial temperature of the freezer compartment upon power-on, thereby determining the maximum defrosting operation duration based on the initial temperature of the freezer compartment. This ensures the normal defrosting operation and normal operation of the refrigeration equipment.

[0186] Please see Figure 14 According to a second aspect of this disclosure, a defrosting apparatus for refrigeration equipment is provided, the apparatus comprising:

[0187] The information acquisition module 10 is used to acquire the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period.

[0188] The current segment determination module 20 is used to determine the current segment, which is the time period segment in which the current time is located. The time period segment is determined by dividing the current power-on time period at least once based on a preset cycle and a preset time period.

[0189] The off-peak electricity period inference module 30 is used to infer the off-peak electricity period based on the target period and door opening time information;

[0190] The start time determination module 40 is used to determine the start time of the defrosting operation based on the off-peak electricity period and the current segment;

[0191] The defrosting operation module 50 is used to perform defrosting operations based on the start time of the defrosting operation.

[0192] In some embodiments, the off-peak electricity time inference module 30 includes:

[0193] The time segmentation determination unit is used to divide the target time period based on a preset time period to obtain multiple time segments;

[0194] The door opening count unit is used to determine the number of door openings for each time segment based on the door opening time information.

[0195] The inference unit is used to infer off-peak electricity periods based on the number of times the door is opened corresponding to multiple time segments.

[0196] In some embodiments, the startup time determination module 40 includes:

[0197] The cumulative working time acquisition unit is used to acquire the cumulative working time of the compressor of the refrigeration equipment.

[0198] The first-time determination unit is used to determine the current time as the start time of the defrosting operation if the cumulative working time is greater than the first preset cumulative time and there is an overlap between the off-peak electricity period and the current segment.

[0199] In some embodiments, the startup time determination module 40 further includes:

[0200] The first detection unit is used to detect whether the predicted cumulative working time is greater than the second preset cumulative working time if the cumulative working time is greater than the first preset cumulative working time and less than or equal to the second preset cumulative working time, and there is no overlap between the off-peak electricity period and the current segment. The second preset cumulative working time is greater than the first preset cumulative working time. The predicted cumulative working time is the cumulative working time of the compressor when the start time of the off-peak electricity period is predicted based on the predicted segment working time. The predicted segment working time is determined based on the compressor working time corresponding to the two time segments above the current segment.

[0201] The second time determination unit is used to determine the current time as the start time of the defrosting operation if the condition is met.

[0202] In some embodiments, the startup time determination module 40 further includes:

[0203] The third time determination unit is used to determine the start time of the defrosting operation as the starting time of the off-peak electricity period if the predicted cumulative working time is less than or equal to the second preset cumulative time.

[0204] In some embodiments, the startup time determination module 40 further includes:

[0205] The second detection unit is used to detect whether the next time segment of the current segment overlaps with the off-peak period if the cumulative working time is greater than the second preset cumulative time and there is no overlap between the off-peak period and the current segment.

[0206] The fourth time determination unit is used, if it exists, to determine the start time of the next time segment of the current segment as the start time of the defrosting operation.

[0207] In some embodiments, the startup time determination module 40 further includes:

[0208] The off-peak electricity segmentation determination unit is used to divide the off-peak electricity period into multiple off-peak electricity segments based on a preset time period if the cumulative working time is less than or equal to the first preset cumulative time period and greater than the third preset cumulative time period. The third preset cumulative time period is less than the second preset cumulative time period.

[0209] The fifth time determination unit is used to determine the current time as the start time of the defrosting operation if the current segment is in the target valley time segment. The target valley time segment is the two latest valley time segments among multiple valley electricity periods.

[0210] In some embodiments, the apparatus further includes:

[0211] The initial temperature acquisition module is used to acquire the initial temperature of the freezing zone of the refrigeration equipment in response to the power-on of the refrigeration equipment;

[0212] The target power-on duration acquisition module is used to acquire the target power-on duration if the initial temperature of the freezing zone is less than or equal to the first preset freezing temperature. The target power-on duration is used to characterize the power-on duration corresponding to the first shutdown of the compressor of the refrigeration equipment.

[0213] The third detection module is used to detect whether the target power-on duration is greater than the first duration threshold.

[0214] The initial defrost time determination module is used to determine the current time as the start time of the defrost operation if the condition is met.

[0215] In some embodiments, the first defrost time determination module further includes:

[0216] The fourth detection unit is used to detect whether the current time is during off-peak hours if the target power-on duration is less than or equal to the first duration threshold.

[0217] The first defrosting determination unit is used to determine the current time as the start time of the defrosting operation if it is in the current state.

[0218] In some embodiments, the first defrost time determination module further includes:

[0219] The fifth detection unit is used to detect whether the target future time period overlaps with the off-peak electricity period if the current time is not during the off-peak electricity period. The target future time period is a time period starting from the current time and with a first duration threshold as the duration.

[0220] The second initial defrosting determination unit is used to determine the target time as the start time of the defrosting operation if, if it exists, and the difference between the end time of the target future time period and the start time of the off-peak electricity period is greater than a preset duration threshold, the duration of the target time period from the start time of the off-peak electricity period is a preset duration threshold, the target time period is earlier than the start time of the off-peak electricity period and later than the current time.

[0221] In some embodiments, the first defrost time determination module further includes:

[0222] The stop duration determination unit is used to obtain the freezing stop duration and the refrigeration stop duration if the target power-on duration is less than or equal to the first duration threshold and the off-peak period does not meet the preset effective off-peak conditions. The freezing stop duration is used to characterize the power-on duration corresponding to the last time the freezing zone of the refrigeration equipment stopped refrigeration, and the refrigeration stop duration is used to characterize the power-on duration corresponding to the last time the refrigeration zone of the refrigeration equipment stopped refrigeration.

[0223] The third initial defrosting determination unit is used to determine the current time as the start time of the defrosting operation if the difference between the first duration threshold and the module cooling duration meets the preset difference range, and the door of the refrigeration equipment is not opened within the preset time period of the module cooling duration. The module cooling duration is the larger of the freezing stop duration and the refrigeration stop duration.

[0224] In some embodiments, the first defrost time determination module further includes:

[0225] The fourth initial defrosting determination unit is used to determine the current time as the start time of the defrosting operation if the difference between the first duration threshold and the module cooling duration is less than or equal to the minimum value of the preset difference range.

[0226] In some embodiments, the apparatus further includes:

[0227] The temperature acquisition module is used to acquire the ambient temperature if the initial temperature of the freezing zone is greater than the second preset freezing temperature and less than or equal to the first preset freezing temperature, wherein the second preset freezing temperature is less than the first preset freezing temperature.

[0228] The first duration determination module is used to determine the first duration threshold as the first threshold if the ambient temperature is less than or equal to a preset ambient temperature threshold.

[0229] The second duration determination module is used to determine the first duration threshold as the second threshold if the ambient temperature is greater than the preset ambient temperature threshold, and the second threshold is greater than the first threshold.

[0230] The third duration determination module is used to determine the first duration threshold as the third threshold if the initial temperature of the freezing zone is less than or equal to the second preset freezing temperature, and the third threshold is less than the first threshold.

[0231] In some embodiments, the functions or modules of the apparatus provided in this disclosure can be used to perform the methods described in the above method embodiments. The specific implementation can be referred to the description of the above method embodiments, and for the sake of brevity, it will not be repeated here.

[0232] This application provides a defrosting device for a refrigeration device. The device can be a terminal or a server. The defrosting device for the refrigeration device includes a processor and a memory. The memory stores at least one instruction or at least one program. The at least one instruction or at least one program is loaded and executed by the processor to implement the defrosting method for the refrigeration device provided in the above method embodiments.

[0233] Memory is used to store software programs and modules. The processor executes these stored software programs and modules to perform various functional applications and data processing. Memory can primarily consist of a program storage area and a data storage area. The program storage area stores the operating system, application programs required for functionality, etc.; the data storage area stores data created based on device usage, etc. Furthermore, memory can include high-speed random access memory (RAM) and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory can also include a memory controller to provide the processor with access to the memory.

[0234] The methods and embodiments provided in this application can be executed in electronic devices such as mobile terminals, computer terminals, servers, or similar computing devices. Figure 15 This is a hardware structure block diagram of an electronic device for a defrosting method of a refrigeration device provided in an embodiment of this application. For example... Figure 15As shown, the electronic device 900 can vary significantly due to differences in configuration or performance. It may include one or more central processing units (CPUs) 910 (CPUs 910 may include, but are not limited to, microprocessors (MCUs) or programmable logic devices (FPGAs), a memory 930 for storing data, and one or more storage media 920 (e.g., one or more mass storage devices) for storing application programs 923 or data 922. The memory 930 and storage media 920 may be temporary or persistent storage. The program stored in the storage media 920 may include one or more modules, each module may include a series of instruction operations on the electronic device. Furthermore, the CPU 910 may be configured to communicate with the storage media 920 and execute the series of instruction operations in the storage media 920 on the electronic device 900. Electronic device 900 may also include one or more power supplies 960, one or more wired or wireless network interfaces 950, one or more input / output interfaces 940, and / or one or more operating systems 921, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0235] The input / output interface 940 can be used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the electronic device 900. In one example, the input / output interface 940 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the input / output interface 940 may be a Radio Frequency (RF) module for wireless communication with the Internet.

[0236] Those skilled in the art will understand that Figure 15 The structure shown is for illustrative purposes only and does not limit the structure of the electronic device described above. For example, the electronic device 900 may also include... Figure 15 The more or fewer components shown, or the presence of [something] Figure 15 The different configurations shown.

[0237] Embodiments of this application also provide a computer-readable storage medium, which can be disposed in an electronic device to store at least one instruction or at least one program related to implementing a defrosting method of a refrigeration device in the method embodiment. The at least one instruction or the at least one program is loaded and executed by the processor to implement the defrosting method of the refrigeration device provided in the above method embodiment.

[0238] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0239] According to one aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various alternative implementations described above.

[0240] As can be seen from the embodiments of the defrosting method, apparatus, device, terminal, server, storage medium, or computer program for refrigeration equipment provided in this application, this application obtains the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period; determines the current segment, which is the time period segment in which the current time is located, and the time period segment is determined by dividing the current power-on period at least once based on a preset cycle and a preset time period; infers off-peak electricity periods based on the target period and door opening time information; and infers off-peak electricity periods based on the historical door opening information of the target period, i.e., the user's usage habits of the refrigeration equipment, thus solving the problem that refrigeration equipment not connected to the network cannot obtain off-peak electricity periods. The defrosting operation start time is determined based on the off-peak electricity period and the current segment; the defrosting operation is performed based on the defrosting operation start time. Then, the energy-saving defrosting time is determined based on the relationship between the current segment and the off-peak electricity period. Even when the refrigeration equipment is not connected to the network, off-peak electricity periods can be inferred based on the user's usage habits, and the refrigerator's cooling strategy and defrosting start execution time can be reasonably arranged to reduce energy consumption and electricity costs.

[0241] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, the above description focuses on specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired results. In some implementations, multitasking and parallel processing are also possible or may be advantageous.

[0242] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, devices, and storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0243] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware, or by a program instructing the relevant hardware to implement them. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0244] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A defrosting method for a refrigeration device, characterized in that, The method includes: Obtain the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period; The current segment is determined, which is the time period segment in which the current time is located. The time period segment is determined by dividing the current power-on time period at least once based on a preset cycle and a preset time period. Inferring off-peak electricity periods based on the target time period and the door opening time information; The start time of the defrosting operation is determined based on the off-peak electricity period and the current segment. The defrosting operation is performed based on the start time of the defrosting operation.

2. The method according to claim 1, characterized in that, The inference of off-peak electricity periods based on the target time period and the door opening time information includes: The target time period is segmented based on the preset time period to obtain multiple time segments; The number of times the door is opened is determined for each time segment based on the door opening time information; The off-peak electricity period is inferred based on the number of times the door is opened corresponding to the multiple time segments.

3. The method according to claim 1, characterized in that, The determination of the defrosting operation start time based on the off-peak electricity period and the current segment includes: Obtain the cumulative operating time of the compressor of the refrigeration equipment; If the cumulative working time is greater than the first preset cumulative time, and the off-peak electricity period and the current segment overlap, the current time is determined as the start time of the defrosting operation.

4. The method according to claim 3, characterized in that, The method further includes: If the cumulative working time is greater than the first preset cumulative working time and less than or equal to the second preset cumulative working time, and the off-peak electricity period and the current segment do not overlap, it is detected whether the predicted cumulative working time is greater than the second preset cumulative working time. If the second preset cumulative working time is greater than the first preset cumulative working time, the predicted cumulative working time is the cumulative working time of the compressor when the start time of the off-peak electricity period is predicted based on the predicted segment working time. The predicted segment working time is determined based on the compressor working time corresponding to the two time segments above the current segment. If so, determine the current time as the start time of the defrosting operation.

5. The method according to claim 4, characterized in that, The method further includes: If the predicted cumulative working time is less than or equal to the second preset cumulative time, the starting time of the off-peak electricity period is determined as the start time of the defrosting operation.

6. The method according to claim 3, characterized in that, The method further includes: If the cumulative working time is greater than the second preset cumulative time, and the off-peak electricity period and the current segment do not overlap, detect whether the next time segment of the current segment and the off-peak electricity period overlap. If it exists, determine the start time of the next time segment of the current segment as the start time of the defrosting operation.

7. The method according to claim 3, characterized in that, The method further includes: If the cumulative working time is less than or equal to the first preset cumulative time and greater than the third preset cumulative time, the off-peak electricity period is divided based on the preset time period to obtain multiple off-peak electricity segments, and the third preset cumulative time is less than the second preset cumulative time. If the current segment is within the target valley time segment, the current time is determined as the start time of the defrosting operation, and the target valley time segment is the two latest valley time segments among the multiple valley electricity periods.

8. The method according to claim 1, characterized in that, The method further includes: In response to the power-on of the refrigeration equipment, the initial temperature of the freezing zone of the refrigeration equipment is obtained; If the initial temperature of the freezing zone is less than or equal to the first preset freezing temperature, the target power-on duration is obtained. The target power-on duration is used to characterize the power-on duration corresponding to the first shutdown of the compressor of the refrigeration equipment. Detect whether the target power-on duration is greater than a first duration threshold; If so, determine the current time as the start time of the defrosting operation.

9. The method according to claim 8, characterized in that, The method further includes: If the target power-on duration is less than or equal to the first duration threshold, detect whether the current time is in the off-peak power period; If so, the current time is determined as the start time of the defrosting operation.

10. The method according to claim 9, characterized in that, The method further includes: If the current time is not during the off-peak electricity period, detect whether there is an overlap between the target future time period and the off-peak electricity period. The target future time period is a time period starting from the current time and with the first duration threshold as the duration. If such a time exists, and the difference between the end time of the target future time period and the start time of the off-peak electricity period is greater than a preset duration threshold, the target time is determined as the start time of the defrosting operation. The time between the target time and the start time of the off-peak electricity period is the preset duration threshold. The target time is earlier than the start time of the off-peak electricity period and later than the current time.

11. The method according to claim 8, characterized in that, The method further includes: If the target power-on duration is less than or equal to the first duration threshold, and the off-peak electricity period does not meet the preset effective off-peak electricity conditions, the freezing stop duration and the refrigeration stop duration are obtained. The freezing stop duration is used to characterize the power-on duration corresponding to the last time the freezing zone of the refrigeration equipment stopped refrigeration, and the refrigeration stop duration is used to characterize the power-on duration corresponding to the last time the refrigeration zone of the refrigeration equipment stopped refrigeration. If the difference between the first duration threshold and the module cooling duration meets a preset difference range, and the door of the refrigeration equipment is not opened within the preset time period of the module cooling duration, the current time is determined to be the start time of the defrosting operation, and the module cooling duration is the larger of the freezing stop duration and the refrigeration stop duration.

12. The method according to claim 9, characterized in that, The method further includes: If the difference between the first duration threshold and the module cooling duration is less than or equal to the minimum value of the preset difference range, the current time is determined as the start time of the defrosting operation.

13. The method according to any one of claims 8-12, characterized in that, The method further includes: If the initial temperature of the freezing zone is greater than the second preset freezing temperature and less than or equal to the first preset freezing temperature, the ambient temperature is obtained, wherein the second preset freezing temperature is less than the first preset freezing temperature. If the ambient temperature is less than or equal to a preset ambient temperature threshold, the first duration threshold is determined as the first threshold. If the ambient temperature is greater than the preset ambient temperature threshold, the first duration threshold is determined to be the second threshold, and the second threshold is greater than the first threshold. If the initial temperature of the freezing zone is less than or equal to the second preset freezing temperature, the first duration threshold is determined to be the third threshold, and the third threshold is less than the first threshold.

14. A defrosting device for a refrigeration system, characterized in that, The device includes: The information acquisition module is used to acquire the current power-on period, current time, target period, and door opening time information of the refrigeration equipment during the target period. The current segment determination module is used to determine the current segment, which is the time period segment in which the current time is located. The time period segment is determined by dividing the current power-on time period at least once based on a preset cycle and a preset time period. The off-peak electricity period inference module is used to infer the off-peak electricity period based on the target time period and the door opening time information; The start time determination module is used to determine the start time of the defrosting operation based on the off-peak electricity period and the current segment. The defrosting operation module is used to perform the defrosting operation based on the start time of the defrosting operation.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one instruction or at least one program, which is loaded and executed by a processor to implement the defrosting method of the refrigeration device as described in any one of claims 1-13.

16. An electronic device, characterized in that, It includes at least one processor and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the at least one processor implements the defrosting method of the refrigeration device as described in any one of claims 1-13 by executing the instructions stored in the memory.

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