Defrosting control method, defrosting control device and refrigeration equipment

Abstract

The invention provides a defrosting control method, a defrosting control device and refrigeration equipment. Firstly, the environment temperature and the average cooling speed and the average heating speed determined by the environment temperature are obtained; then, the first freezing chamber temperature is obtained according to a preset time interval; then, a plurality of first cooling speeds and a plurality of first heating speeds are obtained according to the detected first freezing chamber temperatures; then, the first cooling speed and the first heating speed are sequentially compared with the average cooling speed and the average heating speed respectively, and the accumulated door opening and closing time of the freezing chamber is obtained. Then, the accumulated refrigeration time and the accumulated door opening and closing time of the refrigeration equipment are obtained, and a first defrosting timing value is obtained; then, a preset second defrosting timing value corresponding to the environment temperature at the current moment is obtained; and finally, comparing the two to determine whether defrosting operation is executed or not. In this way, the accumulated door opening and closing time is judged according to the temperature change of the freezing chamber, and therefore defrosting operation can be executed based on the actual situation of the freezing chamber.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration equipment manufacturing, and in particular to a defrost control method, a defrost control device and refrigeration equipment. Background Art

[0002] Refrigeration equipment (such as refrigerators) typically has a refrigerator and freezer compartment inside, each with independent evaporation chambers, supply and return air ducts, and thus independent defrosting systems. The defrost interval is determined by the accumulated refrigeration time and door opening and closing times of the freezer compartment. However, current methods for calculating freezer door opening and closing times have limitations. These methods typically infer the freezer door opening and closing times based on the ratio of refrigerator door opening and closing times to freezer door opening and closing times from collected data. This method fails to accurately reflect actual freezer usage and can easily lead to frequent defrosting, resulting in wasted energy. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a defrost control method, a defrost control device and a refrigeration equipment. During the operation of the refrigeration equipment, the accumulated door opening and closing time is judged by the temperature change of the freezer compartment, and then the defrost operation can be performed based on the actual situation of the freezer compartment, thereby efficiently realizing the intelligent defrost operation of the refrigeration equipment.

[0004] According to a first aspect of the present application, a defrost control method is provided, which is applied to a control processing unit in a refrigeration device, wherein the refrigeration device further includes a freezer compartment, a freezer compartment temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrost control unit, wherein the freezer compartment temperature acquisition unit is disposed inside the freezer compartment and is used to detect the temperature of the freezer compartment, and the ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration device, the control processing unit is communicatively connected to a server, and the control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit, and the defrost control unit, the method comprising: Acquire the ambient temperature detected by the ambient temperature acquisition unit, and acquire from the server an average cooling rate and an average heating rate determined based on the ambient temperature; Acquiring a first freezing chamber temperature detected by the freezing chamber temperature acquisition unit at a preset time interval; obtaining a plurality of first cooling rates and a plurality of first heating rates based on the first freezing chamber temperatures detected at adjacent time intervals; Sequentially comparing the first cooling rates with the average cooling rate and the first heating rates with the average heating rate to obtain a first door opening and closing time and a second door opening and closing time, and obtaining a cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time; Acquiring the accumulated refrigeration time of the refrigeration equipment, and obtaining a first defrost timing value based on the accumulated refrigeration time and the accumulated door opening and closing time; obtaining from the server a preset second defrost timing value corresponding to the ambient temperature detected by the ambient temperature acquisition unit at the current moment; The first defrost timing value is compared with the second defrost timing value to determine whether to control the defrost control unit to perform a defrost operation.

[0005] In a possible implementation of the first aspect, before the steps of obtaining the ambient temperature detected by the ambient temperature acquisition unit and obtaining from the server an average cooling rate and an average heating rate determined based on the ambient temperature, the method further includes: Determining an ambient temperature range for normal operation of the refrigeration equipment based on the ambient temperature detected by the ambient temperature acquisition unit; Dividing the ambient temperature range of the refrigeration equipment into a plurality of ambient temperature intervals; When the refrigeration device is not in use, obtaining the ambient temperature detected by the ambient temperature acquisition unit at the current moment, and determining the ambient temperature range in which the ambient temperature falls based on the ambient temperature; Acquiring a second freezing chamber temperature detected by the freezing chamber temperature acquisition unit at a preset time interval, and obtaining a plurality of second cooling rates and a plurality of second heating rates based on the second freezing chamber temperatures detected at adjacent time intervals; When the number of the second cooling rates in different ambient temperature intervals reaches a preset number, the average cooling rate of the ambient temperature interval is determined; when the number of the second heating rates in different ambient temperature intervals reaches a preset number, the average heating rate of the ambient temperature interval is determined.

[0006] In a possible implementation of the first aspect, the step of determining an average cooling rate for the ambient temperature interval when the number of the second cooling rates within different ambient temperature intervals reaches a preset number, and the step of determining an average heating rate for the ambient temperature interval when the number of the second heating rates within different ambient temperature intervals reaches a preset number, includes: When the number of the second cooling rates in different ambient temperature intervals reaches a preset number, the second cooling rates in the ambient temperature intervals are normally distributed, and the second cooling rates that are greater than a first preset proportion in the normal distribution are averaged to obtain an average cooling rate; When the number of the second heating rates within the ambient temperature range reaches a preset number, the second heating rates within the ambient temperature range are normally distributed, and the second heating rates that are greater than a second preset proportion in the normal distribution are averaged to obtain an average heating rate.

[0007] In a possible implementation manner of the first aspect, the step of sequentially comparing the plurality of first cooling rates with the average cooling rate and comparing the plurality of first heating rates with the average heating rate to obtain a first door opening and closing time and a second door opening and closing time, and obtaining a cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time includes: If the first cooling rate is greater than or equal to 0.9 times the average cooling rate, it is determined that there is no door opening or closing action of the freezer compartment during the time interval; if the first heating rate is less than 1.1 times the average heating rate, it is determined that there is no door opening or closing action of the freezer compartment during the time interval; If the first cooling rate is less than 0.9 times the average cooling rate, it is determined that the freezer compartment door is opened and closed within the time interval, and a first door opening and closing time of the freezer compartment is determined based on the magnitude relationship between the first cooling rate and the average cooling rate; if the first heating rate is greater than or equal to 1.1 times the average heating rate, it is determined that the freezer compartment door is opened and closed within the time interval, and a second door opening and closing time of the freezer compartment is determined based on the magnitude relationship between the first heating rate and the average heating rate; The accumulated door opening and closing time is obtained based on the first door opening and closing time and the second door opening and closing time.

[0008] In a possible implementation of the first aspect, if the first cooling rate is less than 0.9 times the average cooling rate, determining that the freezer compartment door has been opened or closed within the time interval, and determining the first door opening or closing time of the freezer compartment based on a magnitude relationship between the first cooling rate and the average cooling rate includes: If the first cooling rate is less than 0.5 times the average cooling rate, it is determined that the freezer compartment has an opening and closing action within the time interval, and the first opening and closing time of the freezer compartment is assigned a first duration; If the first cooling rate is between 0.5 times the average cooling rate and 0.7 times the average cooling rate, it is determined that there is an opening and closing action of the freezer door within the time interval, and the first opening and closing time of the freezer door is assigned to the second duration; If the first cooling rate is between 0.7 times the average cooling rate and 0.8 times the average cooling rate, it is determined that there is an opening and closing action of the freezer door within the time interval, and the first opening and closing time of the freezer door is assigned a third duration; If the first cooling rate is between 0.8 times the average cooling rate and 0.9 times the average cooling rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the first door opening and closing time of the freezer compartment is assigned to the fourth duration.

[0009] In a possible implementation of the first aspect, if the first heating rate is greater than or equal to 1.1 times the average heating rate, determining that the freezer compartment door has been opened or closed within the time interval, and determining a second door opening or closing time of the freezer compartment based on a magnitude relationship between the first heating rate and the average heating rate includes: If the first heating rate is between 1.1 times the average heating rate and 1.2 times the average heating rate, it is determined that the freezer compartment has a door opening and closing action within the time interval, and the second door opening and closing time of the freezer compartment is assigned a fifth duration; If the first heating rate is between 1.2 times the average heating rate and 1.3 times the average heating rate, it is determined that the freezer compartment has a door opening and closing action within the time interval, and the second door opening and closing time of the freezer compartment is assigned a sixth duration; If the first heating rate is between 1.3 times the average heating rate and 1.5 times the average heating rate, it is determined that the freezer compartment has a door opening and closing action within the time interval, and the second door opening and closing time of the freezer compartment is assigned a seventh duration; If the first heating rate is greater than or equal to 1.5 times the average heating rate, it is determined that there is an opening and closing action of the freezer door within the time interval, and the second opening and closing time of the freezer door is assigned to the eighth duration.

[0010] In a possible implementation manner of the first aspect, in the step of obtaining the cumulative refrigeration time of the refrigeration equipment and obtaining the first defrost timing value based on the cumulative refrigeration time and the cumulative door opening and closing time, the method includes: The formula for the first defrost timing value is:

[0011] in, is the first defrost timing value, is the cumulative cooling time, 2 is the cumulative door opening and closing time, is the conversion factor.

[0012] In a possible implementation manner of the first aspect, the step of comparing the first defrost timing value with the second defrost timing value to determine whether to control the defrost control unit to perform the defrost operation includes: comparing the first defrost timing value with the second defrost timing value, and controlling the defrost control unit to perform a defrost operation if the first defrost timing value is greater than or equal to the second defrost timing value; If the first defrost timing value is smaller than the second defrost timing value, the steps of obtaining the ambient temperature detected by the ambient temperature acquisition unit and obtaining the average cooling rate and the average heating rate determined based on the ambient temperature from the server are performed.

[0013] According to a second aspect of the present application, a defrost control device is provided, which is applied to a control processing unit in a refrigeration device, wherein the refrigeration device includes a freezer compartment, a freezer compartment temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrost control unit, wherein the freezer compartment temperature acquisition unit is disposed inside the freezer compartment and is used to detect the temperature of the freezer compartment, and the ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration device, the control processing unit is communicatively connected to a server, and the control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit, and the defrost control unit, and the device includes: A first acquisition module is configured to acquire the ambient temperature detected by the ambient temperature acquisition unit, and acquire from the server an average cooling rate and an average heating rate determined based on the ambient temperature; A second acquisition module is used to acquire the first freezing chamber temperature detected by the freezing chamber temperature acquisition unit according to a preset time interval; a first calculation module, configured to obtain a plurality of first cooling rates and a plurality of first heating rates based on the first freezing chamber temperature detected at adjacent time intervals; a comparison module, configured to sequentially compare the plurality of first cooling rates with the average cooling rate and the plurality of first heating rates with the average heating rate to obtain a first door opening and closing time and a second door opening and closing time, and obtain a cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time; a second calculation module, configured to obtain a cumulative refrigeration time of the refrigeration equipment, and obtain a first defrost timing value based on the cumulative refrigeration time and the cumulative door opening and closing time; a third obtaining module, configured to obtain from the server a preset second defrost timing value corresponding to the ambient temperature detected by the ambient temperature collecting unit at the current moment; The control module is used to compare the first defrost timing value with the second defrost timing value to determine whether to control the defrost control unit to perform a defrost operation.

[0014] According to a third aspect of the present application, a refrigeration device is provided, which includes a freezer compartment, a freezer compartment temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit and a defrost control unit, wherein the freezer compartment temperature acquisition unit is arranged inside the freezer compartment for detecting the temperature of the freezer compartment, the ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration device, the control processing unit is communicatively connected to a server, the control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit and the defrost control unit, and the control processing unit is used to execute the defrost control methods described in the aforementioned multiple first aspects.

[0015] Based on any of the above aspects, embodiments of the present application provide a defrost control method, defrost control device, and refrigeration equipment, which are applied to a control processing unit in the refrigeration equipment. First, the ambient temperature detected by the ambient temperature acquisition unit is acquired, and the average cooling rate and average heating rate determined based on the ambient temperature are obtained from a server. Next, the first freezer compartment temperature detected by the freezer compartment temperature acquisition unit is acquired at preset time intervals. Next, multiple first cooling rates and multiple first heating rates are obtained based on the first freezer compartment temperatures detected at adjacent time intervals. Next, the multiple first cooling rates are compared with the average cooling rate, and the multiple first heating rates are compared with the average heating rate, to obtain first and second door opening and closing times. The cumulative door opening and closing times of the freezer compartment are then obtained based on the first and second door opening and closing times. Next, the cumulative cooling time of the refrigeration equipment is acquired, and a first defrost timer value is obtained based on the cumulative cooling time and the cumulative door opening and closing times. Next, a preset second defrost timer value corresponding to the ambient temperature detected by the ambient temperature acquisition unit at the current moment is obtained from the server. Finally, the first defrost timer value is compared with the second defrost timer value to determine whether to control the defrost control unit to perform a defrost operation. The above scheme determines the cumulative door opening and closing time of the freezer compartment based on the temperature change of the first freezer compartment, and determines whether to perform a defrost operation based on the cumulative cooling time and the cumulative door opening and closing time. Thus, this embodiment determines the cumulative door opening and closing time based on the temperature change of the freezer compartment, and can then perform a defrost operation based on the actual situation of the freezer compartment, effectively realizing intelligent defrost operation of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic flow chart of the steps of a defrost control method provided in this embodiment; Figure 2 for Figure 1 Schematic diagram of the steps before step S110; Figure 3 for Figure 1 Schematic diagram of the sub-step flow of step S140; Figure 4 This is a schematic diagram of the functional modules of a defrost control device provided in this embodiment.

[0018] Icons: 20 - defrost control device, 200 - first acquisition module, 210 - second acquisition module, 220 - first calculation module, 230 - comparison module, 240 - second calculation module, 250 - third acquisition module, 260 - control module. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0023] It should be noted that, in the absence of conflict, different features in the embodiments of the present application can be combined with each other.

[0024] In order to solve the technical problems mentioned in the above background technology, the inventors innovatively designed the following technical solutions, and the specific implementation solutions of this application will be described in detail with reference to the accompanying drawings.

[0025] See Figure 1 , Figure 1 This is a schematic diagram of the steps of the defrost control method provided in this embodiment. The method is applied to Figure 2 The defrost control module 20 is shown. The defrost control module 20 is applied to a control processing module in a refrigeration device, and the refrigeration device also includes a freezer, a freezer temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrost control unit. In this embodiment, the refrigeration device can be a refrigerator, a freezer, or other equipment used for refrigeration, and the refrigeration device is not specifically limited here. The freezer temperature acquisition unit is arranged inside the freezer and is used to detect the temperature of the freezer. The freezer temperature acquisition unit can include one freezer temperature acquisition sensor or multiple freezer temperature acquisition sensors. The number of freezer temperature acquisition sensors in the freezer temperature acquisition unit is not specifically limited here.

[0026] The ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration equipment. The control processing unit is communicatively connected to the server and is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit, and the defrost control unit. In this embodiment, the control processing unit can connect to the server via wireless communication (e.g., Bluetooth, WiFi, etc.). For example, the control processing unit can obtain parameters such as the average cooling rate and average heating rate corresponding to different ambient intervals from the server. The control processing unit can perform operations such as obtaining the first freezer compartment temperature detected by the freezer compartment temperature acquisition unit, obtaining the ambient temperature detected by the ambient temperature acquisition unit, and controlling the defrost processing unit to perform a defrost operation.

[0027] The following will target Figure 1The process shown is described in detail, and the defrost control method can specifically include the following steps.

[0028] Step S110 , obtaining the ambient temperature detected by the ambient temperature acquisition unit, and obtaining from the server an average cooling rate and an average heating rate determined based on the ambient temperature.

[0029] In this step, average cooling speeds and average heating speeds corresponding to ambient temperature intervals of different ambient temperatures are pre-set on the server side, wherein the average cooling speeds and average heating speeds corresponding to different ambient temperature intervals are different.

[0030] Step S120: acquiring the first freezing chamber temperature detected by the freezing chamber temperature acquisition unit at a preset time interval.

[0031] In this step, the preset time interval length may be 1 minute, 2 minutes, 5 minutes, etc. The specific time interval length is not specifically limited here and can be selected according to actual conditions.

[0032] Step S130: obtaining a plurality of first cooling rates and a plurality of first heating rates based on the first freezing chamber temperatures detected at adjacent time intervals.

[0033] In this embodiment, during the operation of the refrigeration device, the state of the refrigeration device is divided into a cooling state and a non-cooling state. For example, when the refrigeration device is in the cooling state, the first cooling rate is obtained based on the first freezer compartment temperature detected in adjacent time intervals. When the refrigeration device is in the non-cooling state, the first heating rate is obtained based on the first freezer compartment temperature detected in adjacent time intervals. For example, when the refrigeration device is in the non-cooling state, assuming the preset time interval is 2 minutes, if the first freezer compartment temperature detected at time t is 5 degrees Celsius, and 2 minutes later the first freezer compartment temperature detected is 8 degrees Celsius, then the first heating rate is 1.5 degrees Celsius per minute.

[0034] In step S140, the multiple first cooling rates are compared with the average cooling rate, and the multiple first heating rates are compared with the average heating rate, to obtain the first door opening and closing time and the second door opening and closing time, and the cumulative door opening and closing time of the freezer compartment is obtained based on the first door opening and closing time and the second door opening and closing time.

[0035] In this step, the first cooling rate in a time interval is compared with the average cooling rate to obtain the first door opening and closing time, and the first door opening and closing time or the second door opening and closing time may be obtained in the next time interval. At this time, the cumulative door opening and closing time is the sum of the two first door opening and closing times of the two adjacent time intervals or the sum of the first door opening and closing time and the second door opening and closing time.

[0036] Step S150: Acquire the accumulated refrigeration time of the refrigeration equipment, and obtain a first defrost timing value based on the accumulated refrigeration time and the accumulated door opening and closing time.

[0037] In this embodiment, during operation of the refrigeration device, the refrigeration device alternates between a cooling state and a non-cooling state. A first cooling rate or a first heating rate obtained during adjacent time intervals is compared with an average cooling rate or an average heating rate corresponding to the ambient temperature measured during the time interval. The obtained first door opening and closing times and second door opening and closing times are sequentially accumulated to determine a cumulative door opening and closing time. For example, during operation of the refrigeration device, assuming a 5-minute time interval, the refrigeration device is in a non-cooling state, and the ambient temperature detected at time t is 15 degrees Celsius, then the average heating rate corresponding to the ambient temperature is determined. At this time, if the first freezer compartment temperature is detected to be 5 degrees Celsius and 8 degrees Celsius after 5 minutes, the first heating rate is 1.5 degrees Celsius / minute. The average heating rate is compared with 1.5 degrees Celsius / minute to determine the second door opening and closing time, and thus the cumulative door opening and closing time. At this point, the cumulative door opening and closing time is calculated with the cumulative cooling time to obtain a first defrost timer value, and whether a defrost operation is required is determined based on the first defrost timer value. Repeat the above operations in the next time interval, and the cumulative door opening and closing time will be accumulated.

[0038] For example, during operation of the refrigeration device, assuming a 5-minute time interval, the refrigeration device is first in a cooling state and then switched to a non-cooling state. While in the cooling state, the first temperature drop rate and the average temperature drop rate within each time interval are determined based on a preset time interval to obtain a first door opening / closing time. The first door opening / closing time is continuously accumulated to form a cumulative door opening / closing time. If the defrost operation condition is not met, step S110 is repeated. When the refrigeration device is switched to the non-cooling state, the first temperature rise rate and the average temperature rise rate within each time interval are continuously determined based on a preset time interval to obtain a second door opening / closing time. The first door opening / closing time obtained during the cooling state and the second door opening / closing time obtained during the non-cooling state are continuously accumulated to form a cumulative door opening / closing time. This continues until the first defrost timing value calculated from the cumulative door opening / closing time and the cumulative cooling time meets the defrost condition, at which point the defrost operation is performed.

[0039] Step S160: obtaining from the server a preset second defrost timing value corresponding to the ambient temperature detected by the ambient temperature acquisition unit at the current moment.

[0040] In this step, before step S110, a second defrost timing value corresponding to the ambient temperature range in which the ambient temperature is located is preset in the server in advance.

[0041] Step S170 , comparing the first defrost timing value with the second defrost timing value to determine whether to control the defrost control unit to perform a defrost operation.

[0042] In this step, if the first defrost timing value is greater than or equal to the second defrost timing value, it indicates that a defrost operation is required, and the control processing module controls the defrost control unit to perform the defrost operation.

[0043] In this embodiment, before step S110, after the refrigeration equipment is powered on, the control processing unit first calculates the number of freezer door openings and closings based on the ratio of the number of refrigerator door openings and closings to the number of freezer door openings and closings in the collected big data, thereby meeting basic defrosting requirements. Next, during operation of the refrigeration equipment, the cumulative door opening and closing time is determined based on changes in the temperature of the first freezer compartment within the freezer compartment. A first defrost timer value is determined based on the cumulative door opening and closing time and the cumulative refrigeration time. This first defrost timer value is compared with a second defrost timer value corresponding to the current ambient temperature to determine whether to perform a defrost operation. In this way, the cumulative door opening and closing time of the freezer compartment can be determined based on changes in the freezer compartment temperature, and the defrost operation can be performed based on the actual conditions of the freezer compartment, effectively achieving intelligent defrost operation of the refrigeration equipment.

[0044] Further, see Figure 2 , Figure 2 for Figure 1 Flow chart of steps before step S110, before step S110, the method further includes: Step S180 : determining an ambient temperature range for normal operation of the refrigeration equipment based on the ambient temperature detected by the ambient temperature acquisition unit.

[0045] In this step, the normal operating ambient temperature range of the refrigeration equipment is generally 0 degrees Celsius to 43 degrees Celsius.

[0046] Step S190: Divide the ambient temperature range of the refrigeration equipment into multiple ambient temperature intervals.

[0047] In this step, the ambient temperature range may be divided into a plurality of ambient temperature intervals at intervals of 5 degrees Celsius. The specific interval of each ambient temperature interval is not specifically limited here and needs to be set according to actual conditions.

[0048] Step S200 , when the refrigeration equipment is not in use, obtaining the ambient temperature detected by the ambient temperature acquisition unit at the current moment, and determining the ambient temperature range in which the ambient temperature belongs based on the ambient temperature.

[0049] Step S210: acquiring the second freezing chamber temperature detected by the freezing chamber temperature acquisition unit at preset time intervals, and obtaining a plurality of second cooling rates and a plurality of second heating rates based on the second freezing chamber temperatures detected at adjacent time intervals.

[0050] In this embodiment, the ambient temperature range within which the currently detected ambient temperature falls is first determined. The second cooling rate or second heating rate obtained within the ambient temperature range is used as statistical data within the ambient temperature range. The statistical data for different ambient temperature ranges, i.e., the magnitude and number of the second cooling rates and second heating rates, vary.

[0051] Step S220, when the number of second cooling rates in different ambient temperature intervals reaches a preset number, determine the average cooling rate of the ambient temperature interval; when the number of second heating rates in different ambient temperature intervals reaches a preset number, determine the average heating rate of the ambient temperature interval.

[0052] In this embodiment, when the number of second cooling rates within an ambient temperature range reaches a preset number, an average cooling rate is calculated based on the multiple second cooling rates within the ambient temperature range. When the number of second heating rates within an ambient temperature range reaches a preset number, an average heating rate is calculated based on the multiple second heating rates within the ambient temperature range. The preset number can be 200, 300, 400, or 500, etc. The specific number is not specifically limited here and should be set according to actual circumstances.

[0053] It is worth noting that after the control processing module in the refrigeration equipment obtains the ambient temperature detected by the ambient temperature acquisition unit and the second freezer temperature detected by the freezer temperature acquisition unit, it transmits the data to the server and obtains the average cooling rate and average heating rate corresponding to different ambient temperature ranges after data processing.

[0054] It is worth noting that when the number of second cooling rates or second heating rates within an ambient temperature range reaches a preset number, statistics will continue to be collected and the average cooling rate and average heating rate within the ambient temperature range will be continuously adjusted to enhance data validity.

[0055] Furthermore, step S220 can also be implemented in the following manner: First, when the number of second cooling rates in different ambient temperature ranges reaches a preset number, the second cooling rates in the ambient temperature range are normally distributed, and the second cooling rates in the normal distribution that are greater than the first preset ratio are averaged to obtain an average cooling rate.

[0056] In this step, the first preset ratio can be 80%, that is, after the second cooling rate in the ambient temperature range is normally distributed, the average cooling rate is obtained by averaging the 80% data intervals with the highest proportion in the normal distribution.

[0057] Then, when the number of second heating rates within the ambient temperature range reaches a preset number, the second heating rates within the ambient temperature range are normally distributed, and the second heating rates greater than a second preset ratio in the normal distribution are averaged to obtain an average heating rate.

[0058] In this step, the second preset ratio can be 80%, that is, after the second heating rate in the ambient temperature range is normally distributed, the average heating rate is obtained by averaging the 80% data intervals with the highest proportion in the normal distribution.

[0059] Further, see Figure 3 , Figure 3 for Figure 1 Schematic diagram of the sub-steps of step S140 in FIG. Step S140 can also be implemented in the following manner.

[0060] Sub-step S140, if the first cooling rate is greater than or equal to 0.9 times the average cooling rate, it is determined that there is no opening or closing action of the freezer door within the time interval; if the first heating rate is less than 1.1 times the average heating rate, it is determined that there is no opening or closing action of the freezer door within the time interval.

[0061] In this embodiment, if the first cooling rate is greater than or equal to 0.9 times the average cooling rate, it means that the freezer compartment is cooling faster, the freezer compartment door is closed, and no door opening or closing is taking place. If the first heating rate is less than 1.1 times the average heating rate, it means that the freezer compartment is heating slower, the freezer compartment door is closed, and no door opening or closing is taking place.

[0062] Sub-step S141, if the first cooling rate is less than 0.9 times the average cooling rate, it is judged that there is an opening and closing action of the freezer door within the time interval, and the first opening and closing time of the freezer door is determined based on the relationship between the first cooling rate and the average cooling rate; if the first heating rate is greater than or equal to 1.1 times the average heating rate, it is judged that there is an opening and closing action of the freezer door within the time interval, and the second opening and closing time of the freezer door is determined based on the relationship between the first heating rate and the average heating rate.

[0063] In this embodiment, if the first cooling rate is less than 0.9 times the average cooling rate, it indicates that the freezer compartment is cooling slowly, and the freezer door may be open, resulting in door opening and closing. If the first heating rate is greater than or equal to 1.1 times the average heating rate, it indicates that the freezer compartment is heating quickly, and the freezer door may be open, allowing outside air to enter, resulting in door opening and closing.

[0064] Sub-step S142: obtaining the accumulated door opening and closing time based on the first door opening and closing time and the second door opening and closing time.

[0065] In this step, when the refrigeration device is in a cooling state, the accumulated door opening and closing time may include only the accumulated value of the first door opening and closing time. When the refrigeration device is in a non-cooling state, the accumulated door opening and closing time may include only the accumulated value of the second door opening and closing time. When the refrigeration device is continuously operating, the accumulated door opening and closing time may include the accumulated value of the first door opening and closing time and the accumulated value of the second door opening and closing time.

[0066] Furthermore, sub-step S141 can also be implemented in the following manner.

[0067] First, if the first cooling rate is less than 0.5 times the average cooling rate, it is determined that there is an opening and closing action in the freezer compartment within the time interval, and the first opening and closing time of the freezer compartment is assigned to the first duration.

[0068] Then, if the first cooling rate is between 0.5 times the average cooling rate and 0.7 times the average cooling rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the first door opening and closing time of the freezer compartment is assigned to the second duration.

[0069] In this step, the first cooling rate is between 0.5 times the average cooling rate and 0.7 times the average cooling rate, including the first cooling rate being equal to 0.5 times the average cooling rate.

[0070] Next, if the first cooling rate is between 0.7 times the average cooling rate and 0.8 times the average cooling rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the first door opening and closing time of the freezer compartment is assigned to the third duration.

[0071] In this step, the first cooling rate is between 0.7 times the average cooling rate and 0.8 times the average cooling rate, including the first cooling rate being equal to 0.7 times the average cooling rate.

[0072] Finally, if the first cooling rate is between 0.8 times the average cooling rate and 0.9 times the average cooling rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the first door opening and closing time of the freezer compartment is assigned to the fourth duration.

[0073] In this step, the first cooling rate is between 0.8 times the average cooling rate and 0.9 times the average cooling rate, including the first cooling rate being equal to 0.8 times the average cooling rate.

[0074] In this embodiment, the specific lengths of the first duration, the second duration, the third duration, and the fourth duration are not specifically limited and need to be set based on actual conditions or experience.

[0075] It is worth noting that the multiple value of the average cooling rate in the comparison relationship between the first cooling rate and the average cooling rate is an empirical value and is not specifically limited here and can be set according to actual conditions.

[0076] Furthermore, sub-step S141 can also be implemented in the following manner.

[0077] First, if the first heating rate is between 1.1 times the average heating rate and 1.2 times the average heating rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the second door opening and closing time of the freezer compartment is assigned to the fifth duration.

[0078] In this step, the first heating rate is between 1.1 times the average heating rate and 1.2 times the average heating rate, including the first heating rate being equal to 1.1 times the average cooling rate.

[0079] Then, if the first heating rate is between 1.2 times the average heating rate and 1.3 times the average heating rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the second door opening and closing time of the freezer compartment is assigned to the sixth duration.

[0080] In this step, the first heating rate is between 1.2 times the average heating rate and 1.3 times the average heating rate, including the first heating rate being equal to 1.2 times the average cooling rate.

[0081] Next, if the first heating rate is between 1.3 times the average heating rate and 1.5 times the average heating rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the second door opening and closing time of the freezer compartment is assigned to the seventh duration.

[0082] In this step, the first heating rate is between 1.3 times the average heating rate and 1.5 times the average heating rate, including the first heating rate being equal to 1.3 times the average cooling rate.

[0083] Finally, if the first heating rate is greater than or equal to 1.5 times the average heating rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the second door opening and closing time of the freezer compartment is assigned to the eighth duration.

[0084] In this embodiment, the specific lengths of the fifth duration, the sixth duration, the seventh duration, and the eighth duration are not specifically limited and need to be set based on actual conditions or experience.

[0085] It is worth noting that the multiple of the average heating rate in the comparison relationship between the first heating rate and the average heating rate is an empirical value and is not specifically limited here and can be set according to actual conditions.

[0086] Furthermore, step S150 can also be implemented in the following manner.

[0087] The formula for the first defrost timing value is:

[0088] in, is the first defrost timing value, is the cumulative cooling time, is the accumulated door opening and closing time, is the conversion factor.

[0089] In this embodiment, The value of is not specifically limited here and should be set based on actual conditions or empirical data. Furthermore, the accumulated door opening and closing time within a time interval must be combined with the accumulated cooling time to calculate the first defrost timer value. This value is then compared with the second defrost timer value at the current ambient temperature to determine whether to defrost. This process is repeated for the next time interval. In other words, the accumulated cooling time may be the sum of the cooling time, while the accumulated door opening and closing time is the sum of multiple door opening and closing times.

[0090] Furthermore, step S160 can also be implemented in the following manner.

[0091] First, the first defrost timing value is compared with the second defrost timing value. If the first defrost timing value is greater than or equal to the second defrost timing value, the defrost control unit is controlled to perform the defrost operation.

[0092] In this step, the second defrost timing value is relative to a preset defrost threshold value. When the first defrost timing value is greater than or equal to the defrost threshold value, it indicates that the defrost operation should be performed at this time.

[0093] Next, if the first defrost timer value is less than the second defrost timer value, step S110 is executed. In this step, if the first defrost timer value is less than the defrost threshold, it means that defrosting is not yet necessary. In this way, defrosting can be performed based on the actual conditions of the freezer compartment, effectively achieving intelligent defrosting of the refrigeration equipment.

[0094] Based on the same inventive concept, see Figure 4 , Figure 4The present embodiment provides a schematic diagram of the functional modules of a defrost control device 20. The present embodiment can divide the functional modules of the defrost control device 20 according to the above-mentioned method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods for actual implementation. For example, in the case of dividing each functional module according to each function, Figure 4 The defrost control device 20 shown is merely a schematic diagram of the device. The defrost control device 20 may include a first acquisition module 200, a second acquisition module 210, a first calculation module 220, a comparison module 230, a second calculation module 240, a third acquisition module 250, and a control module 260. The functions of each functional module of the defrost control device 20 are described in detail below.

[0095] The first acquisition module 200 is configured to acquire the ambient temperature detected by the ambient temperature acquisition unit, and acquire from the server an average cooling rate and an average heating rate determined based on the ambient temperature.

[0096] In this embodiment, the first acquisition module 200 can be used to execute Figure 1 As shown in step S110 , for a detailed description of the first acquisition module 200 , please refer to the description of step S110 .

[0097] The second acquisition module 210 is configured to acquire the first freezing chamber temperature detected by the freezing chamber temperature acquisition unit at a preset time interval.

[0098] In this embodiment, the second acquisition module 210 can be used to perform Figure 1 As shown in step S120, for a detailed description of the second acquisition module 210, please refer to the description of step S120.

[0099] The first calculation module 220 is configured to obtain a plurality of first cooling rates and a plurality of first heating rates based on the first freezing chamber temperatures detected at adjacent time intervals.

[0100] In this embodiment, the first calculation module 220 can be used to perform Figure 1 As shown in step S130, for a detailed description of the first calculation module 220, please refer to the description of step S130.

[0101] The comparison module 230 is used to compare the multiple first cooling rates with the average cooling rate and to compare the multiple first heating rates with the average heating rate in turn to obtain the first door opening and closing time and the second door opening and closing time, and to obtain the cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time.

[0102] In this embodiment, the comparison module 230 can be used to perform Figure 1 As shown in step S140, for a detailed description of the comparison module 230, please refer to the description of step S140.

[0103] The second calculation module 240 is configured to obtain the accumulated refrigeration time of the refrigeration equipment and obtain a first defrost timing value based on the accumulated refrigeration time and the accumulated door opening and closing time.

[0104] In this embodiment, the second calculation module 240 can be used to perform Figure 1 As shown in step S150, for a detailed description of the second calculation module 240, please refer to the description of step S150.

[0105] The third acquisition module 250 is configured to acquire from the server a preset second defrost timing value corresponding to the ambient temperature detected by the ambient temperature acquisition unit at the current moment.

[0106] In this embodiment, the third acquisition module 250 can be used to perform Figure 1 As shown in step S160, for a detailed description of the third obtaining module 250, please refer to the description of step S160.

[0107] The control module 260 is configured to compare the first defrost timing value with the second defrost timing value to determine whether to control the defrost control unit to perform a defrost operation.

[0108] In this embodiment, the control module 260 can be used to execute Figure 1 As shown in step S160, for a detailed description of the control module 260, please refer to the description of step S160.

[0109] Furthermore, an embodiment of the present application also provides a refrigeration device, which includes a freezer compartment, a freezer compartment temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrost control unit, wherein the freezer compartment temperature acquisition unit is disposed inside the freezer compartment and is used to detect the freezer compartment temperature, the ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration device, the control processing unit is communicatively connected to a server, the control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit, and the defrost control unit, and the control processing unit is used to execute the defrost control method provided in the above method embodiment. When executed, the executable program can be used to implement the emergency stop control method provided in the above method embodiment. In this way, this embodiment determines the accumulated door opening and closing time of the freezer compartment by the temperature change, and can then perform a defrost operation based on the actual situation of the freezer compartment, effectively realizing the intelligent defrost operation of the refrigeration device.

[0110] In summary, the present application provides a defrost control method, a defrost control device 20, and a refrigeration device, which are applied to a control processing unit in a refrigeration device. First, the ambient temperature detected by the ambient temperature acquisition unit is acquired, and the average cooling rate and average heating rate determined based on the ambient temperature are obtained from a server. Next, the first freezer compartment temperature detected by the freezer compartment temperature acquisition unit is acquired at preset time intervals. Next, multiple first cooling rates and multiple first heating rates are obtained based on the first freezer compartment temperatures detected in adjacent time intervals. Then, the multiple first cooling rates are sequentially compared with the average cooling rate, and the multiple first heating rates are sequentially compared with the average heating rate to obtain first and second door opening and closing times. Based on the first and second door opening and closing times, the cumulative door opening and closing time of the freezer compartment is obtained. Next, the cumulative cooling time of the refrigeration device is acquired, and a first defrost timer value is obtained based on the cumulative cooling time and the cumulative door opening and closing time. Next, a preset second defrost timer value corresponding to the ambient temperature detected by the ambient temperature acquisition unit at the current moment is obtained from the server. Finally, the first defrost timer value is compared with the second defrost timer value to determine whether to control the defrost control unit to perform a defrost operation. The above scheme determines the cumulative door opening and closing time of the freezer compartment based on the temperature change of the first freezer compartment, and determines whether to perform a defrost operation based on the cumulative cooling time and the cumulative door opening and closing time. Thus, this embodiment determines the cumulative door opening and closing time based on the temperature change of the freezer compartment, and thus executes a defrost operation based on the actual situation of the freezer compartment, effectively realizing intelligent defrost operation of the refrigeration equipment.

[0111] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, devices, and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0112] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0113] It should be understood that although Figure 1 、 Figure 2 and Figure 3 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders.

[0114] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A defrost control method, characterized in that: A control processing unit applied to a refrigeration device, the refrigeration device further comprising a freezer compartment, a freezer compartment temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrost control unit, wherein the freezer compartment temperature acquisition unit is disposed inside the freezer compartment and is used to detect the temperature of the freezer compartment, and the ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration device, the control processing unit is communicatively connected to a server, and the control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit, and the defrost control unit, and the method comprises: Acquire the ambient temperature detected by the ambient temperature acquisition unit, and acquire from the server an average cooling rate and an average heating rate determined based on the ambient temperature; Acquiring a first freezing chamber temperature detected by the freezing chamber temperature acquisition unit at a preset time interval; obtaining a plurality of first cooling rates and a plurality of first heating rates based on the first freezing chamber temperatures detected at adjacent time intervals; Sequentially comparing the first cooling rates with the average cooling rate and the first heating rates with the average heating rate to obtain a first door opening and closing time and a second door opening and closing time, and obtaining a cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time; Acquiring the accumulated refrigeration time of the refrigeration equipment, and obtaining a first defrost timing value based on the accumulated refrigeration time and the accumulated door opening and closing time; obtaining from the server a preset second defrost timing value corresponding to the ambient temperature detected by the ambient temperature acquisition unit at the current moment; The first defrost timing value is compared with the second defrost timing value to determine whether to control the defrost control unit to perform a defrost operation.

2. The defrost control method according to claim 1, wherein: Before the step of obtaining the ambient temperature detected by the ambient temperature acquisition unit and obtaining from the server an average cooling rate and an average heating rate determined based on the ambient temperature, the method further includes: Determining an ambient temperature range for normal operation of the refrigeration equipment based on the ambient temperature detected by the ambient temperature acquisition unit; Dividing the ambient temperature range of the refrigeration equipment into a plurality of ambient temperature intervals; When the refrigeration device is not in use, obtaining the ambient temperature detected by the ambient temperature acquisition unit at the current moment, and determining the ambient temperature range in which the ambient temperature falls based on the ambient temperature; Acquiring a second freezing chamber temperature detected by the freezing chamber temperature acquisition unit at a preset time interval, and obtaining a plurality of second cooling rates and a plurality of second heating rates based on the second freezing chamber temperatures detected at adjacent time intervals; When the number of the second cooling rates in different ambient temperature intervals reaches a preset number, the average cooling rate of the ambient temperature interval is determined; when the number of the second heating rates in different ambient temperature intervals reaches a preset number, the average heating rate of the ambient temperature interval is determined.

3. The defrost control method according to claim 2, wherein: The step of determining the average cooling rate of the ambient temperature interval when the number of the second cooling rates in different ambient temperature intervals reaches a preset number, and determining the average heating rate of the ambient temperature interval when the number of the second heating rates in different ambient temperature intervals reaches a preset number, comprises: When the number of the second cooling rates in different ambient temperature intervals reaches a preset number, the second cooling rates in the ambient temperature intervals are normally distributed, and the second cooling rates that are greater than a first preset proportion in the normal distribution are averaged to obtain an average cooling rate; When the number of the second heating rates within the ambient temperature range reaches a preset number, the second heating rates within the ambient temperature range are normally distributed, and the second heating rates that are greater than a second preset proportion in the normal distribution are averaged to obtain an average heating rate.

4. The defrost control method according to claim 1, wherein: The step of sequentially comparing the plurality of first cooling rates with the average cooling rate and comparing the plurality of first heating rates with the average heating rate to obtain a first door opening and closing time and a second door opening and closing time, and obtaining a cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time includes: If the first cooling rate is greater than or equal to 0.9 times the average cooling rate, it is determined that there is no door opening or closing action of the freezer compartment during the time interval; if the first heating rate is less than 1.1 times the average heating rate, it is determined that there is no door opening or closing action of the freezer compartment during the time interval; If the first cooling rate is less than 0.9 times the average cooling rate, it is determined that the freezer compartment door is opened and closed within the time interval, and a first door opening and closing time of the freezer compartment is determined based on the magnitude relationship between the first cooling rate and the average cooling rate; if the first heating rate is greater than or equal to 1.1 times the average heating rate, it is determined that the freezer compartment door is opened and closed within the time interval, and a second door opening and closing time of the freezer compartment is determined based on the magnitude relationship between the first heating rate and the average heating rate; The accumulated door opening and closing time is obtained based on the first door opening and closing time and the second door opening and closing time.

5. The defrost control method according to claim 4, characterized in that: If the first cooling rate is less than 0.9 times the average cooling rate, determining that the freezer compartment door is opened or closed within the time interval, and determining the first door opening or closing time of the freezer compartment based on the magnitude relationship between the first cooling rate and the average cooling rate, includes: If the first cooling rate is less than 0.5 times the average cooling rate, it is determined that the freezer compartment has an opening and closing action within the time interval, and the first opening and closing time of the freezer compartment is assigned a first duration; If the first cooling rate is between 0.5 times the average cooling rate and 0.7 times the average cooling rate, it is determined that there is an opening and closing action of the freezer door within the time interval, and the first opening and closing time of the freezer door is assigned to the second duration; If the first cooling rate is between 0.7 times the average cooling rate and 0.8 times the average cooling rate, it is determined that there is an opening and closing action of the freezer door within the time interval, and the first opening and closing time of the freezer door is assigned a third duration; If the first cooling rate is between 0.8 times the average cooling rate and 0.9 times the average cooling rate, it is determined that there is a door opening and closing action in the freezer compartment within the time interval, and the first door opening and closing time of the freezer compartment is assigned to the fourth duration.

6. The defrost control method according to claim 4, characterized in that: The step of determining, if the first heating rate is greater than or equal to 1.1 times the average heating rate, that the freezer compartment door is opened or closed within the time interval, and determining a second door opening or closing time of the freezer compartment based on a magnitude relationship between the first heating rate and the average heating rate, includes: If the first heating rate is between 1.1 times the average heating rate and 1.2 times the average heating rate, it is determined that the freezer compartment has a door opening and closing action within the time interval, and the second door opening and closing time of the freezer compartment is assigned a fifth duration; If the first heating rate is between 1.2 times the average heating rate and 1.3 times the average heating rate, it is determined that the freezer compartment has a door opening and closing action within the time interval, and the second door opening and closing time of the freezer compartment is assigned a sixth duration; If the first heating rate is between 1.3 times the average heating rate and 1.5 times the average heating rate, it is determined that the freezer compartment has a door opening and closing action within the time interval, and the second door opening and closing time of the freezer compartment is assigned a seventh duration; If the first heating rate is greater than or equal to 1.5 times the average heating rate, it is determined that there is an opening and closing action of the freezer door within the time interval, and the second opening and closing time of the freezer door is assigned to the eighth duration.

7. The defrost control method according to claim 1, wherein: In the step of obtaining the accumulated refrigeration time of the refrigeration equipment and obtaining a first defrost timing value based on the accumulated refrigeration time and the accumulated door opening and closing time, the method includes: The formula for the first defrost timing value is: in, is the first defrost timing value, is the cumulative cooling time, is the accumulated door opening and closing time, is the conversion factor.

8. The defrost control method according to claim 1, wherein: The step of comparing the first defrost timing value with the second defrost timing value to determine whether to control the defrost control unit to perform the defrost operation includes: comparing the first defrost timing value with the second defrost timing value, and controlling the defrost control unit to perform a defrost operation if the first defrost timing value is greater than or equal to the second defrost timing value; If the first defrost timing value is smaller than the second defrost timing value, the steps of obtaining the ambient temperature detected by the ambient temperature acquisition unit and obtaining the average cooling rate and the average heating rate determined based on the ambient temperature from the server are performed.

9. A defrost control device, characterized in that: A control processing unit applied to a refrigeration device, the refrigeration device including a freezer compartment, a freezer compartment temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrost control unit, wherein the freezer compartment temperature acquisition unit is disposed inside the freezer compartment and is used to detect the temperature of the freezer compartment, and the ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration device, the control processing unit is communicatively connected to a server, and the control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit, and the defrost control unit, the device comprising: A first acquisition module is configured to acquire the ambient temperature detected by the ambient temperature acquisition unit, and acquire from the server an average cooling rate and an average heating rate determined based on the ambient temperature; A second acquisition module is used to acquire the first freezing chamber temperature detected by the freezing chamber temperature acquisition unit according to a preset time interval; a first calculation module, configured to obtain a plurality of first cooling rates and a plurality of first heating rates based on the first freezing chamber temperature detected at adjacent time intervals; a comparison module, configured to sequentially compare the plurality of first cooling rates with the average cooling rate and the plurality of first heating rates with the average heating rate to obtain a first door opening and closing time and a second door opening and closing time, and obtain a cumulative door opening and closing time of the freezer compartment based on the first door opening and closing time and the second door opening and closing time; a second calculation module, configured to obtain a cumulative refrigeration time of the refrigeration equipment, and obtain a first defrost timing value based on the cumulative refrigeration time and the cumulative door opening and closing time; a third obtaining module, configured to obtain from the server a preset second defrost timing value corresponding to the ambient temperature detected by the ambient temperature collecting unit at the current moment; The control module is used to compare the first defrost timing value with the second defrost timing value to determine whether to control the defrost control unit to perform a defrost operation.

10. A refrigeration device comprising a freezing chamber, a freezing chamber temperature acquisition unit, an ambient temperature acquisition unit, a control processing unit, and a defrosting control unit, wherein: The freezer compartment temperature acquisition unit is arranged inside the freezer compartment and is used to detect the temperature of the freezer compartment. The ambient temperature acquisition unit is used to detect the ambient temperature outside the refrigeration equipment. The control processing unit is communicatively connected to the server. The control processing unit is electrically connected to the freezer compartment temperature acquisition unit, the ambient temperature acquisition unit and the defrost control unit. The control processing unit is used to execute the defrost control method in any one of claims 1-8.

Images