Refrigerator frost blockage identification method and device, refrigerator, storage medium and vehicle

Abstract

This application discloses a refrigerator frost blockage identification method, device, refrigerator, storage medium, and vehicle, relating to the field of refrigerator control technology. The refrigerator frost blockage identification method includes: responding to a defrosting completion event in a target compartment of the refrigerator, acquiring a measured temperature of the target compartment at preset intervals; comparing the measured temperature with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature at which frost blockage occurs in the target compartment; and determining that frost blockage exists in the target compartment if the measured temperature is greater than or equal to the preset temperature threshold for a consecutive preset number of comparison results. This application can identify refrigerator frost blockage and perform timely defrosting.

Description

Technical Field

[0001] This application relates to the field of refrigerator control technology, and in particular to a refrigerator frost blockage identification method, device, refrigerator, storage medium and vehicle. Background Technology

[0002] With the continuous development and optimization of refrigerator technology, refrigerators have become an indispensable appliance not only in homes but also in vehicles. Most refrigerators typically use direct cooling technology, employing natural convection for compartment cooling. This method has drawbacks such as slow cooling, the need for periodic manual power-offs for defrosting, and reduced heat exchange efficiency due to evaporator icing. Therefore, applying air-cooling technology to refrigerators is a better solution than direct cooling.

[0003] Currently, for refrigerators using air-cooling technology, a fixed defrosting cycle is typically preset, with defrosting performed once every other defrost cycle. However, when users frequently use the refrigerator (i.e., frequently open the refrigerator door), or when the refrigerator door is not completely closed after use, causing cold air to leak through the door gaps, humid air from the environment enters the refrigerator compartment and forms a frost layer on the evaporator. In this situation, defrosting at fixed intervals may result in the frost layer not melting in time, leading to a decrease in evaporator heat exchange efficiency, affecting the refrigerator's cooling performance, and even causing the refrigerator to fail to cool properly.

[0004] Therefore, how to identify frost buildup in refrigerators and defrost them in a timely manner is an urgent problem that needs to be solved. Summary of the Invention

[0005] The main purpose of this application is to provide a method, device, refrigerator, storage medium and vehicle for identifying refrigerator frost blockage, so as to identify the refrigerator frost blockage phenomenon and defrost the refrigerator in a timely manner.

[0006] To achieve the above objectives, this application provides a method for identifying frost blockage in a refrigerator, the method comprising:

[0007] In response to the defrosting end event of the target compartment in the refrigerator, the measured temperature of the target compartment is acquired once at a preset interval;

[0008] The measured temperature is compared with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature at which frost blockage occurs in the target room.

[0009] If the comparison results obtained after a preset number of consecutive comparisons are all greater than or equal to the preset temperature threshold, it is determined that the target compartment has frost blockage.

[0010] In one embodiment, the method further includes:

[0011] The start-up temperature of the refrigerator compressor is obtained, wherein the start-up temperature is a critical temperature used to indicate the start-up of the compressor;

[0012] The preset temperature threshold is obtained by adding the power-on temperature to the preset temperature rise.

[0013] In one embodiment, after determining that the target compartment has frost blockage, the method further includes:

[0014] Trigger the current defrost event to perform defrost treatment on the target room.

[0015] In one embodiment, after the step of triggering the current defrost event, the method further includes:

[0016] The triggering mechanism of the current defrosting event is determined to be frost blockage detection, and it is determined whether there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, wherein the triggering time of the historical defrosting event is later than the time when the defrosting water capacity alarm was last output.

[0017] When there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, an alarm prompt for defrosting water capacity is output.

[0018] In one embodiment, the step of defrosting the target compartment includes:

[0019] Obtain the set temperature and measured temperature of the target room;

[0020] When both the set temperature and the measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator.

[0021] When both the set temperature and the measured temperature are negative, the target compartment is defrosted by the defrosting heater of the refrigerator.

[0022] In one embodiment, the step of defrosting the target compartment using the evaporator fan of the refrigerator includes:

[0023] Control the refrigerator's compressor to stop running;

[0024] The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the measured temperature at the top of the evaporator of the refrigerator reaches a first preset threshold, wherein the first preset threshold represents the temperature at which the frost in the target compartment can melt under positive temperature conditions.

[0025] In one embodiment, the step of defrosting the target compartment using the defrost heater of the refrigerator includes:

[0026] Control the refrigerator's compressor to stop running;

[0027] The evaporator fan of the refrigerator is stopped.

[0028] The refrigerator's heater is controlled to start running until the measured temperature at the top of the refrigerator's evaporator reaches a second preset threshold, wherein the second preset threshold represents the temperature at which frost in the target compartment can melt under negative temperature conditions.

[0029] In addition, to achieve the above objectives, this application also provides a refrigerator frost blockage identification device, the refrigerator frost blockage identification device comprising:

[0030] The detection module is used to acquire the measured temperature of the target compartment once at a preset interval in response to the defrosting end event of the target compartment inside the refrigerator.

[0031] The comparison module is used to compare the measured temperature with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature that can cause frost blockage in the target room.

[0032] The frost blockage detection module is used to determine that the target room has frost blockage if the comparison results obtained for a consecutive preset number of times are all greater than or equal to the preset temperature threshold.

[0033] In addition, to achieve the above objectives, this application also provides a refrigerator, which includes a memory, a processor, and a refrigerator frost blockage identification program stored in the memory and executable on the processor. When the automatic control program is executed by the processor, it implements the steps of the refrigerator frost blockage identification method as described above.

[0034] In addition, to achieve the above objectives, this application also provides a computer storage medium storing a refrigerator frost blockage identification program that can run on a processor. The program is called by the processor to implement the steps of the refrigerator frost blockage identification method described above.

[0035] In addition, to achieve the above objectives, this application also provides a vehicle, the vehicle comprising: a vehicle body; and the refrigerator disposed on the vehicle body.

[0036] In addition, to achieve the above objectives, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the refrigerator frost blockage identification method described above.

[0037] This application provides a method for identifying frost blockage in a refrigerator. In response to the defrosting completion event of a target compartment inside the refrigerator, this application starts by acquiring the measured temperature of the target compartment once every preset period. The acquired measured temperature is compared with a preset temperature threshold to obtain a comparison result. The preset temperature threshold represents the temperature at which frost blockage can occur in the target compartment. Then, if the comparison result obtained for a preset number of consecutive times is that the measured temperature is greater than or equal to the preset temperature threshold, it is determined that there is frost blockage in the target compartment.

[0038] In summary, this application acquires the measured temperature of the target compartment at preset intervals and determines whether the measured temperature detected at each temperature sampling point is greater than or equal to a preset temperature threshold. If the measured temperature is greater than or equal to the preset temperature threshold for a preset number of consecutive measurements, it indicates that the temperature inside the target compartment is consistently high, suggesting that frost blockage has occurred. Therefore, compared to the traditional method of defrosting the refrigerator at fixed intervals, this application can identify frost blockage and promptly defrost the refrigerator upon detection, thus preventing a decrease in heat exchange efficiency due to untimely frost melting and improving the overall performance of the refrigerator. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the internal architecture of a vehicle-mounted refrigerator according to the refrigerator frost blockage identification method of this application embodiment;

[0042] Figure 2 This is a flowchart illustrating the refrigerator frost blockage identification method according to an embodiment of this application;

[0043] Figure 3 This is a schematic diagram of the frost blockage identification process of the refrigerator frost blockage identification method according to an embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the refrigerator frost blockage identification process according to the refrigerator frost blockage identification method of this application embodiment;

[0045] Figure 5 This is a schematic diagram of the module structure of the refrigerator frost blockage identification device according to an embodiment of this application;

[0046] Figure 6 This is a schematic diagram of the hardware operating environment involved in the embodiments of this application.

[0047] Explanation of icon numbers:

[0048] 1. Car refrigerator body; 2. Storage drawer; 3. Air duct plate assembly; 4. Built-in refrigeration evaporator assembly; 5. Motion mechanism assembly; 6. External refrigeration compressor assembly; 7. Upper door; 8. Front door; 9. Main control board; 31. Evaporator fan; 32. Internal temperature sensor; 41. Defrost heater; 42. Defrost temperature sensor; 51. Lower drive motor; 91. Temperature and humidity sensor.

[0049] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0051] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0052] Currently, for refrigerators using air-cooling technology, a fixed defrosting cycle is typically preset, with defrosting performed once every other defrost cycle. However, when users frequently open the refrigerator door, or when the door is not completely closed after use, allowing cold air to leak into the refrigerator compartment, humid air enters and forms frost on the evaporator. In such cases, defrosting at fixed intervals may result in the frost not melting in time, leading to reduced evaporator heat exchange efficiency, affecting the refrigerator's cooling performance, and even causing the refrigerator to fail to cool properly.

[0053] Therefore, how to identify frost buildup in refrigerators and defrost them in a timely manner is an urgent problem that needs to be solved.

[0054] The main solution of this application is as follows: in response to the defrosting end event of the target compartment in the refrigerator, the measured temperature of the target compartment is acquired once at a preset interval; the measured temperature is compared with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature that can cause frost blockage in the target compartment; if the comparison result obtained for a preset number of consecutive times is that the measured temperature is greater than or equal to the preset temperature threshold, it is determined that there is frost blockage in the target compartment.

[0055] This application acquires the measured temperature of the target compartment at preset intervals and determines whether the measured temperature detected at each temperature sampling point is greater than or equal to a preset temperature threshold. If the measured temperature is greater than or equal to the preset temperature threshold for a preset number of consecutive preset cycles, it indicates that the temperature inside the target compartment is consistently high, and it is considered that frost blockage has occurred in the target compartment under these conditions. Therefore, compared to the traditional method of defrosting the refrigerator at fixed intervals, this application can identify frost blockage and promptly defrost the refrigerator upon detection, thereby preventing a decrease in heat exchange efficiency of the evaporator due to untimely frost melting and improving the overall performance of the refrigerator.

[0056] The executing entity in this embodiment can be a household refrigerator using air-cooling technology or a vehicle refrigerator using air-cooling technology. Refrigerators using air-cooling technology mainly rely on the coordinated operation of a compressor, evaporator, and evaporator fan to achieve the cooling effect. The following description uses a refrigerator as the executing entity to illustrate this embodiment and the subsequent embodiments.

[0057] like Figure 1The diagram shows the internal structure of a vehicle-mounted refrigerator. The air-cooled vehicle-mounted refrigerator includes a refrigerator body 1, a storage drawer 2, an air duct assembly 3, a built-in evaporator assembly 4, a motion mechanism assembly 5, an external compressor assembly 6, an upper door 7, a front door 8, and a main control board 9. The refrigerator body 1 contains the storage drawer 2. The lower motion mechanism assembly 5 drives the front door 8 and connects to the storage drawer 2 via a drive gear. The air duct assembly 3 is mounted at the rear of the refrigerator body 1, and the built-in evaporator assembly 4 faces the air outlet of the air duct assembly 3. The built-in evaporator assembly 4 is connected to the external compressor assembly 6 at the rear of the refrigerator body 1. An evaporator fan 31 is located on the top of one side of the air duct assembly 3, and an internal temperature sensor 32 is located at the bottom. The built-in evaporator assembly 4 has a defrost heater 41 embedded in the evaporator end plate, and a defrost temperature sensor is located at the top of the evaporator piping. Sensor 42 has a water collection tank at its bottom, which is connected to the evaporator dish outside the car refrigerator body through a drain pipe; the motion mechanism assembly 5 is driven by the drive gear bearing of the lower drive motor 51 to drive the storage drawer 2, and the guide rail connects to the front door 8 to form an automatic door opening device; the external refrigeration compressor assembly 6 consists of a compressor, finned condenser, bottom cooling fan, dryer filter, and return gas capillary tube; together with the built-in evaporator assembly 4, it forms a refrigeration module device; the main control board 9 is externally equipped with a temperature and humidity sensor 91 to control the movement of the motion mechanism assembly, as well as the operation of the evaporator fan and the refrigeration module device.

[0058] Based on this, this application proposes a refrigerator frost blockage identification method according to the first embodiment. Please refer to [link / reference]. Figure 2 The refrigerator frost blockage identification method includes steps S10 to S30:

[0059] Step S10: In response to the defrosting end event of the target compartment in the refrigerator, the measured temperature of the target compartment is acquired once at a preset interval;

[0060] It should be noted that a refrigerator compartment refers to the space inside the refrigerator where items are stored. Any compartment within the refrigerator is referred to as the target compartment for distinction. The defrost completion event of the target compartment refers to the event automatically triggered when a defrost process of the target compartment is completed. A preset period for detecting the actual temperature of the target compartment is established, i.e., the aforementioned preset period. In this embodiment, the preset period can be set to 5 minutes, or it can be set to a reasonable value according to actual needs; this application embodiment does not limit this. It is understood that after a refrigerator defrost process ends, a new frost blockage detection monitoring cycle begins, i.e., the actual temperature of the target compartment (hereinafter referred to as the measured temperature for distinction) is acquired every preset period until the next defrost event is triggered. The measured temperature acquired at a certain temperature sampling point is the actual temperature of the target compartment detected by the internal temperature sensor at that temperature sampling point.

[0061] Step S20: Compare the measured temperature with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature at which frost blockage occurs in the target room.

[0062] It should be noted that a preset temperature threshold is used to compare the measured temperature with the measured temperature to evaluate whether the measured temperature is normal. This preset temperature threshold is the temperature at which frost blockage can occur in the target room. In other words, if the measured temperature of the target room is greater than or equal to the preset temperature threshold, the measured temperature is considered abnormal and is likely to cause frost blockage in the target room; if the measured temperature of the target room is less than the preset temperature threshold, the measured temperature is considered normal and is unlikely to cause frost blockage in the target room.

[0063] After obtaining the measured temperature of the target room, the measured temperature is compared with the preset temperature threshold to obtain the comparison result. It can be understood that the comparison result is that the measured temperature is less than the preset temperature threshold or the measured temperature is greater than or equal to the preset temperature threshold.

[0064] For example, after detecting the defrosting end event of the target compartment inside the refrigerator, in response to the defrosting end event, the measured temperature inside the target compartment is obtained from the internal temperature sensor every 5 minutes, and the measured temperature obtained at that time is compared with a preset temperature threshold to obtain the comparison result.

[0065] In this embodiment, the refrigerator frost blockage identification method of this application further includes steps A10 to A20:

[0066] Step A10: Obtain the start-up temperature of the refrigerator compressor, wherein the start-up temperature is a critical temperature used to indicate the start-up temperature of the compressor;

[0067] It should be noted that the refrigerator's compressor is used for cooling, and the compressor's start-up temperature is a preset critical temperature that triggers the compressor to start. This start-up temperature can be set manually by the user or determined based on the desired temperature range of the refrigerator's target compartment.

[0068] Step A20: Add the power-on temperature to the preset temperature rise to obtain the preset temperature threshold.

[0069] It should be noted that the preset temperature rise is the difference between the temperature that will cause frost blockage in the target compartment and the compressor start-up temperature. This embodiment does not limit the specific magnitude of the preset temperature rise; in this embodiment, the preset temperature rise is set to 3 degrees Celsius.

[0070] Add the compressor start-up temperature to the preset temperature rise, and the sum is the preset temperature threshold.

[0071] Step S30: If the comparison results obtained for a consecutive preset number of times are all greater than or equal to the preset temperature threshold, it is determined that there is frost blockage in the target compartment.

[0072] It should be noted that the number of consecutive abnormal measurement temperatures used to characterize the frost blockage determination conditions is preset, i.e., the aforementioned preset number. This application embodiment does not limit the specific value of the preset number; for example, in this embodiment, the preset number can be set to 10 times, or it can be set to other values ​​that meet actual needs.

[0073] If the measured temperature is compared with the preset temperature threshold for a preset number of consecutive times, and the comparison results are all greater than or equal to the preset temperature threshold, it is determined that there is frost blockage in the target room.

[0074] For example, with a preset cycle of 5 minutes and a preset number of measurements of 10, in response to the defrosting completion event of the target compartment, the temperature is measured every 5 minutes. If the measured temperature is greater than or equal to a preset temperature threshold for 10 consecutive times, it is considered that the temperature of the target compartment has been abnormal for the past 50 minutes, which is likely to cause frost blockage. Therefore, frost blockage is determined to exist in the target compartment, and defrosting is performed. Thus, it can be understood that the shorter the preset cycle and / or the fewer the preset number of measurements, the easier it is to trigger frost blockage determination, that is, the more timely the treatment of frost. For example, under the conditions of a preset 5 minutes and a preset number of measurements of 10, it is possible to detect frost blockage and perform defrosting within 1 hour of its occurrence.

[0075] In this embodiment, after step S30, the refrigerator frost blockage identification method of this application further includes step B10:

[0076] Step B10: Trigger the current defrost event to perform defrost treatment on the target room.

[0077] After determining that there is frost blockage in the target room, a defrosting event is automatically triggered (hereinafter referred to as the current defrosting event for distinction) to begin defrosting the target room.

[0078] For example, such as Figure 3The diagram shows the frost blockage identification process. First, in response to the defrosting completion event of the target compartment, the measured temperature T inside the target compartment is acquired every 5 minutes. Then, the acquired measured temperature is compared with a preset temperature threshold to obtain the comparison result. The preset temperature threshold is the sum of the compressor start-up temperature and the preset temperature rise. So, when the compressor start-up temperature is represented as Tk and the preset temperature rise is 3 degrees Celsius, the preset temperature threshold can be represented as Tk+3. It is determined whether the measured temperature T is greater than or equal to the preset temperature threshold Tk+3 for 10 consecutive comparison results. If so, frost blockage is identified and defrosting is performed. If not, the measured temperature continues to be acquired.

[0079] In this embodiment, after step B10, the refrigerator frost blockage identification method of this application further includes steps B20 to B40:

[0080] Step B20: Determine that the triggering mechanism of the current defrosting event is frost blockage detection, and determine whether there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, wherein the triggering time of the historical defrosting event is later than the time when the defrosting water capacity alarm prompt was last output.

[0081] It should be noted that the preset number is used to determine the number of consecutive frost blockage defrosting events when the defrost water exceeds the capacity of the refrigerator's evaporator dish, i.e., the aforementioned preset number. The preset number can be determined according to the capacity of the refrigerator's evaporator dish; in this embodiment, the preset number is set to 5. Here, a frost blockage defrosting event refers to a defrosting event triggered by the occurrence of frost blockage. Furthermore, it should be understood that the refrigerator can have multiple defrosting monitoring functions, i.e., in addition to the frost blockage detection mentioned in this embodiment, it can also be equipped with timed defrosting, temperature detection, etc. Timed defrosting refers to triggering a defrosting event at fixed intervals; that is, the triggering mechanism for this type of defrosting event is timed defrosting. Temperature detection refers to automatically triggering a defrosting event when the temperature in the target compartment reaches a relatively high threshold; that is, the triggering mechanism for this type of defrosting event is temperature detection.

[0082] Since the current defrost event was triggered by the detection of frost blockage in the target compartment, the triggering mechanism for this defrost event was determined to be frost blockage detection. Simultaneously, it was determined whether there existed a preset number of consecutive defrost events (hereinafter referred to as historical defrost events for distinction) that were triggered by frost blockage detection. The trigger time of these historical defrost events was later than the time of the last defrost water capacity alarm. When N consecutive defrost events triggered on the target compartment were detected, all due to frost blockage, a defrost water capacity alarm was output to remind the user to check for abnormalities in the refrigerator. This prevents excessive accumulation of defrost water due to repeated frost blockage during defrosting, which could lead to insufficient time for evaporation or treatment, causing the defrost water to exceed the capacity of the external evaporation dish and ultimately overflow, affecting the user experience. N equals the preset number plus 1.

[0083] Step B30: When there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, output a defrosting water capacity alarm prompt.

[0084] When a preset number of historical defrost events are detected that are consecutive to the current defrost event and are all triggered by frost blockage detection, a defrost water capacity alarm will be output to remind the user to check the refrigerator in time.

[0085] For example, if the preset quantity is set to 5, then after the current defrost event is triggered by the frost blockage detection, it is determined whether there are 5 consecutive defrost events triggered by frost blockage detection since the last defrost water capacity alarm. If so, a defrost water capacity alarm is issued again. In other words, it can be understood that if 6 consecutive defrost events are detected with frost blockage detection since the last defrost water capacity alarm, it is assumed that the accumulated defrost water may exceed the capacity of the evaporator dish, so a defrost water capacity alarm is issued to remind the user to check for abnormalities in the refrigerator.

[0086] It should be noted that when users frequently open the refrigerator door for extended periods, or when abnormal door closure causes cold air leakage, it indicates increased air and water vapor entering the refrigerator compartment and circulating. This leads to increased water vapor return to the built-in evaporator, resulting in abnormally high frost buildup and impaired cooling. If defrosting is performed according to a fixed schedule, stored food will freeze and spoil. Therefore, this embodiment measures the temperature inside the target compartment at preset intervals and determines whether the measured temperature at each sampling point is greater than or equal to a preset temperature threshold. If the measured temperature is greater than or equal to the preset temperature threshold for a preset number of consecutive measurements, it indicates that the temperature inside the target compartment is consistently high, suggesting frost blockage. Thus, compared to the traditional method of defrosting at fixed intervals, this embodiment can identify frost blockage and promptly defrost the refrigerator upon detection, preventing a decrease in heat exchange efficiency due to untimely frost melting and improving the overall performance of the refrigerator.

[0087] Based on the first embodiment described above, a second embodiment of the refrigerator frost blockage identification method of this application is proposed. In the second embodiment, step B10 may include steps B101 to B103:

[0088] Step B101: Obtain the set temperature and measured temperature of the target room;

[0089] It should be noted that the set temperature of the target compartment refers to the desired temperature preset by the user. A temperature sensor (hereinafter referred to as the internal temperature sensor for distinction) is installed at the lower part of the air duct plate assembly of the refrigerator's evaporator fan to detect the temperature inside the target compartment.

[0090] Step B102: When both the set temperature and the measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator.

[0091] It should be noted that positive temperature refers to the temperature range above 0 degrees Celsius, while negative temperature refers to the temperature range below 0 degrees Celsius. Refrigerators primarily rely on the coordinated operation of the compressor, evaporator, and evaporator fan to achieve their cooling effect.

[0092] After obtaining the set temperature and the measured temperature, it is determined whether both data are positive, that is, whether they are greater than 0 degrees Celsius. If both the set temperature and the measured temperature are positive, the target compartment is defrosted by the refrigerator's evaporator fan.

[0093] In this embodiment, step B102 may include steps C10 to C20:

[0094] Step C10: Control the refrigerator's compressor to stop running;

[0095] When both the set and measured temperatures are positive, the refrigerator compressor stops operating. It should be understood that the refrigerator compressor compresses the refrigerant into a high-temperature, high-pressure gas, which is then sent to the condenser. The condenser condenses the gas into a low-temperature, low-pressure liquid, which is then sent to the evaporator. Finally, the evaporator evaporates the liquid to produce cold air. Therefore, when the refrigerator compressor stops running, it means that the compressor has stopped cooling, and a small amount of residual cold air remains in the evaporator.

[0096] Step C20: The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the measured temperature at the top of the evaporator of the refrigerator reaches a first preset threshold, wherein the first preset threshold represents the temperature at which the frost in the target compartment can melt under positive temperature conditions.

[0097] It should be noted that the refrigerator's evaporator fan is used to blow out the cold air generated by the evaporator, that is, to deliver the cold air to the target compartment, so as to distribute the cold air evenly. A preset compartment temperature threshold (hereinafter referred to as the first preset threshold for distinction) is used to determine whether to exit the shutdown defrosting mode. The aforementioned shutdown defrosting refers to the method of shutting down the compressor and running the evaporator fan to defrost when the compartment is at a positive temperature. This first preset threshold represents the temperature at which the frost in the target compartment can melt when the compartment is at a positive temperature. That is to say, when the measured temperature in the target compartment reaches the first preset threshold, it is considered that the frost in the target compartment has been basically melted. It should be understood that the above-mentioned first preset threshold is an empirical value. A temperature sensor (hereinafter referred to as the defrosting temperature sensor for distinction) is installed at the top of the refrigerator's evaporator pipes to detect the temperature at the top of the evaporator. It should also be understood that because the internal temperature sensor and the defrosting temperature sensor are located in different positions, the temperature values ​​detected by the two sensors are also different, so the measured temperatures detected by the two sensors play different roles.

[0098] After the refrigerator compressor stops running, the evaporator fan continues to operate, promoting air circulation within the target compartment. This means that the remaining small amount of cold air in the evaporator is distributed throughout the compartment, facilitating heat exchange. As the compressor stops working and cooling ceases, the temperature inside the target compartment gradually rises, and the frost begins to melt. The defrosting mode is then terminated when the measured temperature at the top of the evaporator reaches a first preset threshold.

[0099] For example, when the obtained set temperature is positive and the measured temperature in the target compartment detected by the temperature sensor inside the refrigerator is also positive, the defrosting procedure is initiated. This means the compressor stops running, while the evaporator fan continues to run. The fan operates at the evaporator location, blowing out cold air to exchange heat with the air in the compartment. The return air temperature at the evaporator is higher than the blowing air temperature, and this cycle continues until the frost layer in the target compartment begins to melt. Then, the defrosting temperature sensor located at the top of the evaporator pipes acquires the temperature in real time and determines whether the measured temperature at the top of the evaporator pipes has reached a first preset threshold. If the measured temperature at the top of the evaporator pipes reaches the first preset threshold, the defrosting stage is exited.

[0100] It should be noted that when the target compartment is at a positive temperature, the frost layer on the evaporator is relatively thin. If the heater is activated to defrost at this time, it will result in a certain degree of energy waste. Furthermore, the rapid temperature rise of the heater causes uneven heat distribution within the target compartment, leading to melting of stored items and negatively impacting the user experience. Additionally, the heater-based defrosting method increases the compartment load, requiring more energy to restore the compartment to a stable operating state, thus demanding a longer cooling time and further increasing energy consumption. Therefore, this embodiment of the application uses a defrosting method of stopping the compressor and starting the evaporator fan to defrost the refrigerator compartment at a positive temperature. Specifically, when it is determined that the target compartment in the refrigerator is at a positive temperature, the refrigerator compressor is stopped, i.e., the cooling is stopped. Then, the evaporator fan is used to promote air circulation in the target compartment. The fan blows out the small amount of cold air remaining in the evaporator and exchanges heat with the space in the compartment, so that the temperature in the compartment gradually rises until the measured temperature at the top of the evaporator reaches the first preset threshold that can melt the frost. Thus, the defrosting effect of the positive temperature compartment is achieved without starting the heater. Furthermore, since the power of the evaporator fan is much smaller than the power of the heater, this embodiment of the application reduces the energy consumption during the defrosting process.

[0101] In this embodiment, the measured temperature of the target compartment is referred to as the first measured temperature for distinction, and the measured temperature at the top of the evaporator is referred to as the second measured temperature for distinction. After step C20, the refrigerator frost blockage identification method of this application further includes steps C30 to C40:

[0102] Step C30: Control the evaporator fan to stop running and monitor whether the first measured temperature has reached the preset positive temperature start-up temperature, wherein the positive temperature start-up temperature is higher than the first preset threshold.

[0103] Step C40: When the first measured temperature reaches the positive start-up temperature, control the compressor and the evaporator fan to start running.

[0104] It should be noted that a pre-set chamber temperature (hereinafter referred to as the positive temperature start-up temperature for distinction) is used to determine when the compressor should be turned on after exiting the shutdown defrosting mode. That is, after exiting the shutdown defrosting mode and controlling the evaporator fan to turn off, if the measured temperature in the target chamber reaches the positive temperature start-up temperature, the compressor is restarted. It is understood that after the evaporator fan turns off, the temperature in the target chamber will further rise until it reaches the positive temperature start-up temperature. In other words, the positive temperature start-up temperature is higher than the first preset threshold. Turning on the compressor after the temperature in the target chamber reaches the positive temperature start-up temperature allows for a faster and more efficient cooling process. In this embodiment, the positive temperature start-up temperature can be set to any temperature value higher than the first preset threshold; this application does not limit this setting.

[0105] After the second measured temperature at the top of the evaporator reaches the first preset temperature, the shutdown defrosting mode is exited, and the evaporator fan is controlled to stop running. Then, the first measured temperature in the target room after the fan stops is monitored to determine whether the first measured temperature has reached the positive start-up temperature. When the first measured temperature reaches the positive start-up temperature, the compressor and evaporator fan are controlled to start running.

[0106] In this embodiment, after step C30, the refrigerator frost blockage identification method of this application may include steps C50 to C60:

[0107] Step C50: When the first measured temperature reaches the positive start-up temperature, control the compressor to start running;

[0108] Step C60: When the current running time of the compressor reaches the first preset time, control the evaporator fan to start running.

[0109] It should be noted that the preset duration for the compressor to run independently after exiting the defrosting mode (hereinafter referred to as the first preset duration for distinction) is specified. This embodiment does not limit the specific value of the first preset duration. For example, in this embodiment, the first preset duration is set to 3 minutes.

[0110] When the first measured temperature reaches the positive start-up temperature, the compressor is controlled to start running, that is, the compressor begins to perform cooling. The duration of continuous operation of the compressor after starting is recorded (i.e., the aforementioned runtime). It can be understood that the runtime is the length of the time period from the moment the compressor starts to the current moment. The runtime of the compressor is monitored to see if it reaches a first preset duration. If the runtime of the compressor reaches the first preset duration, the evaporator fan is controlled to start running.

[0111] Thus, in this embodiment of the application, after exiting the defrost mode, the compressor is turned on first, and then the evaporator fan is turned on. This ensures that the evaporator fan blows out cold air after it is turned on, thereby improving the efficiency of restoring the temperature of the target room to the user-set temperature. Moreover, it can avoid the situation where the fan blows out hot air due to the simultaneous operation of the compressor and the evaporator fan, thus avoiding the problem of the hot air blown out by the fan causing the stored food in the refrigerator to melt, thereby improving the user experience.

[0112] Step B103: When both the set temperature and the measured temperature are negative, the target compartment is defrosted using the defrost heater of the refrigerator.

[0113] When both the set temperature and the measured temperature of the target compartment (i.e., the first measured temperature) are negative, the target compartment is defrosted using the refrigerator's defrosting heater.

[0114] In this embodiment, step B103 may include steps D10 to D30:

[0115] Step D10: Control the refrigerator's compressor to stop running;

[0116] Step D20: Control the evaporator fan of the refrigerator to stop running;

[0117] Step D30: Control the refrigerator's heater to start running until the measured temperature at the top of the refrigerator's evaporator reaches a second preset threshold, wherein the second preset threshold represents the temperature at which the frost in the target room can melt under negative temperature conditions.

[0118] It should be noted that the preset duration for which the compressor stops running and the evaporator fan continues to run after entering the heater defrosting mode (hereinafter referred to as the second preset duration for distinction) is specified. This application embodiment does not limit the specific value of the aforementioned second preset duration. Heater defrosting refers to the method of defrosting by heating with a heater when the compartment is at a negative temperature. A preset compartment temperature threshold (hereinafter referred to as the second preset threshold for distinction) is used to determine whether to exit the heater defrosting program. This second preset threshold represents the temperature at which frost in the target compartment can melt under negative temperature conditions. That is, when the measured temperature at the top of the evaporator (i.e., the second measured temperature) reaches the second preset threshold, it is considered that the frost in the target compartment has essentially melted. It should be understood that the aforementioned second preset threshold is also an empirical value.

[0119] After determining that the target room is at a negative temperature, the refrigerator compressor is first stopped, i.e., cooling is stopped. Then, the evaporator fan continues to run for a second preset time to blow out the remaining cold air in the evaporator, allowing it to exchange heat with the air in the target room and raising the temperature inside. Once the compressor's current shutdown time reaches the second preset time, that is, after the fan's independent running time reaches the second preset time, the evaporator fan stops, and the heater is activated. It should be noted that the compressor's current shutdown time is the duration of the time interval from the moment the compressor shuts off after entering the heater defrost mode to the current moment.

[0120] For example, when the user-set temperature is detected to be negative and the first measured temperature is also negative, the defrosting program of the defrosting heater is started, the compressor is stopped (i.e., the cooling is stopped), and the evaporator fan continues to run for a first preset time, so that the temperature in the target room rises. Then the defrosting heater is turned on to further increase the temperature in the target room, so that the frost layer on the surface of the built-in evaporator component begins to melt. At the same time, the second measured temperature detected by the defrosting temperature sensor is obtained, and when the second measured temperature reaches the second preset threshold, it is considered that the frost layer has basically melted and the defrosting mode of the heater is exited.

[0121] Thus, in this embodiment of the application, by controlling the compressor to stop running and controlling the evaporator fan to run continuously before turning on the heater, the residual cold energy in the evaporator is quickly removed, and the initial temperature of the target room is increased when the heater is defrosting, thereby shortening the working time of the heater and reducing energy consumption.

[0122] In this embodiment, after step D30, the refrigerator frost blockage identification method of this application further includes steps D40 to D50:

[0123] Step D40: Control the heater to stop running and monitor whether the second measured temperature reaches the preset negative temperature start-up temperature, wherein the negative temperature start-up temperature is higher than the second preset threshold.

[0124] Step D50: When the second measured temperature reaches the negative temperature start-up temperature, control the refrigerator's compressor and evaporator fan to start running.

[0125] It should be noted that a pre-set chamber temperature (hereinafter referred to as the negative start-up temperature for distinction) is used to determine when to start the compressor after exiting the heater defrosting mode. That is, after exiting the heater defrosting mode and controlling the heater to turn off, if the measured temperature in the target chamber reaches the negative start-up temperature, the compressor is restarted. It is understood that after the heater is turned off, the temperature in the target chamber will further rise until it reaches the negative start-up temperature. In other words, the negative start-up temperature is higher than the second preset threshold. Starting the compressor after the temperature in the target chamber reaches the negative start-up temperature allows for a faster and more efficient cooling process. In this embodiment, the negative start-up temperature can be set to any temperature value higher than the second preset threshold; this application does not limit this setting.

[0126] After detecting that the second measured temperature has reached the second preset threshold, the defrosting mode of the heater is exited and the heater is stopped. At this time, the temperature detected by the defrosting temperature sensor continues to rise. When the second measured temperature reaches the negative start-up temperature, the compressor and evaporator fan are restarted.

[0127] In this embodiment, after step D40, the refrigerator frost blockage identification method of this application may include steps D60 to D70:

[0128] Step D60: When the second measured temperature reaches the negative temperature start-up temperature, control the refrigerator compressor to start running;

[0129] Step D70: When the current running time of the compressor reaches the first preset time, control the evaporator fan of the refrigerator to start running.

[0130] When the second measured temperature reaches the negative start-up temperature, the compressor is controlled to start running, that is, the compressor starts to perform refrigeration. The running time of the compressor is recorded, and it is monitored whether the running time of the compressor reaches the first preset time. If the running time of the compressor reaches the first preset time, the evaporator fan is controlled to start running.

[0131] Thus, in this embodiment, after exiting the defrosting mode of the heater, the compressor is turned on first, and after waiting for a first preset time, the evaporator fan is turned on. At this time, the built-in evaporator assembly has cooled for the first preset time to form a low temperature, so the fan blows out cold air, thereby improving the efficiency of restoring the temperature of the target room to the user-set temperature. Moreover, it can avoid the situation where the fan blows out hot air due to the simultaneous operation of the compressor and the evaporator fan, thus avoiding the problem of the hot air blown out by the fan causing the stored items in the refrigerator to melt, thereby improving the user experience.

[0132] For example, such as Figure 4The diagram illustrates the refrigerator frost blockage detection process. First, the defrosting time t is recorded, and it's determined whether t reaches the preset defrosting cycle T. If so, it continues to check if both the set temperature and the first measured temperature are positive. If both are positive, the shutdown-and-blowing defrosting program is initiated, entering the shutdown-and-blowing defrosting mode. The compressor is first stopped cooling, while the evaporator fan continues to operate until the second measured temperature detected by the defrosting temperature sensor reaches the first preset threshold. Then, the evaporator fan is stopped. Next, it's determined whether the first measured temperature reaches the positive start-up temperature. If so, the compressor is first started. After a first preset time, the evaporator fan is turned on. If both the set temperature and the first measured temperature are negative, the heater defrosting program is started, and the heater defrosting mode is entered. First, the compressor is stopped from cooling, and the evaporator fan is kept running for a second preset time. Then, the evaporator fan is stopped, and the heater is turned on until the second measured temperature reaches the second preset threshold. Then, the heater is stopped. Then, it is further determined whether the second measured temperature has reached the negative start-up temperature. If the second measured temperature has reached the negative start-up temperature, the compressor is turned on, and the evaporator fan is turned on after a second preset time.

[0133] This application also provides a refrigerator frost blockage identification device. Please refer to... Figure 5 The refrigerator frost blockage detection device includes:

[0134] The detection module 10 is used to acquire the measured temperature of the target compartment once at a preset interval in response to the defrosting end event of the target compartment inside the refrigerator.

[0135] The comparison module 20 is used to compare the measured temperature with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature that can cause frost blockage in the target room.

[0136] The frost blockage determination module 30 is used to determine that there is frost blockage in the target room if the comparison results obtained for a consecutive preset number of times are all greater than or equal to the preset temperature threshold.

[0137] Optionally, the refrigerator frost blockage identification method of this application further includes a threshold setting module, which is used for:

[0138] The start-up temperature of the refrigerator compressor is obtained, wherein the start-up temperature is a critical temperature used to indicate the start-up of the compressor;

[0139] The preset temperature threshold is obtained by adding the power-on temperature to the preset temperature rise.

[0140] Optionally, the refrigerator frost blockage identification method of this application further includes a defrosting module, which is used for:

[0141] Trigger the current defrost event to perform defrost treatment on the target room.

[0142] Optionally, the refrigerator frost blockage identification method of this application further includes an alarm module, which is used for:

[0143] The triggering mechanism of the current defrosting event is determined to be frost blockage detection, and it is determined whether there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, wherein the triggering time of the historical defrosting event is later than the time when the defrosting water capacity alarm was last output.

[0144] When there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, an alarm prompt for defrosting water capacity is output.

[0145] Optionally, the defrosting module is further configured to:

[0146] Obtain the set temperature and measured temperature of the target room;

[0147] When both the set temperature and the measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator.

[0148] When both the set temperature and the measured temperature are negative, the target compartment is defrosted by the defrosting heater of the refrigerator.

[0149] Optionally, the defrosting module is further configured to:

[0150] Control the refrigerator's compressor to stop running;

[0151] The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the measured temperature at the top of the evaporator of the refrigerator reaches a first preset threshold, wherein the first preset threshold represents the temperature at which the frost in the target compartment can melt under positive temperature conditions.

[0152] Optionally, the defrosting module is further configured to:

[0153] Control the refrigerator's compressor to stop running;

[0154] The evaporator fan of the refrigerator is stopped.

[0155] The refrigerator's heater is controlled to start running until the measured temperature at the top of the refrigerator's evaporator reaches a second preset threshold, wherein the second preset threshold represents the temperature at which frost in the target compartment can melt under negative temperature conditions.

[0156] The refrigerator frost blockage identification device provided in this application, employing the refrigerator frost blockage identification method in the above embodiments, can identify refrigerator frost blockage and perform timely defrosting. Compared with the prior art, the beneficial effects of the refrigerator frost blockage identification device provided in this application are the same as those of the refrigerator frost blockage identification method provided in the above embodiments, and other technical features in the refrigerator frost blockage identification device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0157] This application also provides a refrigerator, which 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, the instructions being executed by the at least one processor to enable the at least one processor to perform the refrigerator frost blockage identification method described above.

[0158] The following is for reference. Figure 6 It shows a structural schematic diagram of a refrigerator suitable for implementing the embodiments of this application. Figure 6 The refrigerator shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0159] like Figure 6 As shown, the refrigerator may include a processing device 101 (e.g., a central processing unit, a graphics processor, etc.) that can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 102 or a program loaded from storage device 103 into random access memory (RAM) 104. The RAM 104 also stores various programs and data required for refrigerator operation. The processing device 101, ROM 102, and RAM 104 are interconnected via a bus 105. An input / output (I / O) interface 106 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 106: input devices 107 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 108 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 103 including, for example, magnetic tapes, hard disks, etc.; and communication devices 109. The communication device 109 allows the refrigerator to communicate wirelessly or wiredly with other devices to exchange data. Although the diagram shows refrigerators with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0160] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 103, or installed from ROM 102. When the computer program is executed by processing device 101, it performs the functions defined in the methods of the embodiments of this application.

[0161] The refrigerator provided in this application embodiment employs the refrigerator frost blockage identification method described in the above embodiments, enabling it to identify frost blockage and defrost the refrigerator in a timely manner. Compared with the prior art, the refrigerator provided in this application embodiment has the same beneficial effects as the refrigerator frost blockage identification method described in the above embodiments, and other technical features of this refrigerator are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0162] It should be understood that various parts of the embodiments of this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0163] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

[0164] This application also provides a computer storage medium storing a smart home system program that can run on a processor. The computer-readable program instructions are used to execute the refrigerator frost blockage identification method in the above embodiments.

[0165] The computer storage medium provided in this application embodiment may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0166] The aforementioned computer storage medium may be included in the refrigerator; or it may exist independently and not be installed in the refrigerator.

[0167] The aforementioned computer storage medium carries one or more programs. When the refrigerator executes one or more of these programs, the refrigerator: in response to a defrosting completion event in a target compartment, acquires the measured temperature of the target compartment at preset intervals; compares the measured temperature with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature at which frost blockage occurs in the target compartment; and if the measured temperature is greater than or equal to the preset temperature threshold for a consecutive preset number of comparison results, it is determined that frost blockage exists in the target compartment.

[0168] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0169] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0170] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0171] The readable storage medium provided in this application embodiment is a computer storage medium. The computer storage medium stores computer-readable program instructions for executing the above-described refrigerator frost blockage identification method, enabling it to identify refrigerator frost blockage and defrost the refrigerator in a timely manner. Compared with the prior art, the beneficial effects of the computer storage medium provided in this application embodiment are the same as those of the refrigerator frost blockage identification method provided in the above embodiments, and will not be repeated here.

[0172] This application also provides a vehicle, including: a vehicle body; and the refrigerator, the refrigerator being disposed on the vehicle body.

[0173] The vehicle provided in this application embodiment can identify refrigerator frost blockage and defrost the refrigerator in a timely manner. Compared with the prior art, the beneficial effects of the vehicle provided in this application embodiment are the same as the beneficial effects of the refrigerator defrosting method provided in the above embodiments, and will not be repeated here.

[0174] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the refrigerator frost blockage identification method described above.

[0175] The computer program product provided in this application can identify frost buildup in refrigerators and defrost them in a timely manner. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the refrigerator frost buildup identification method provided in the above embodiments, and will not be repeated here.

[0176] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A method of identifying frost blockage in a refrigerator, characterized by, The refrigerator frost blockage identification method includes: In response to the defrosting end event of the target compartment in the refrigerator, the measured temperature of the target compartment is acquired once at a preset interval; The measured temperature is compared with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature at which frost blockage occurs in the target room. If the comparison results obtained after a preset number of consecutive comparisons are all greater than or equal to the preset temperature threshold, it is determined that the target compartment has frost blockage.

2. The method of claim 1, wherein, The method further includes: The start-up temperature of the refrigerator compressor is obtained, wherein the start-up temperature is a critical temperature used to indicate the start-up of the compressor; The preset temperature threshold is obtained by adding the power-on temperature to the preset temperature rise.

3. The method of claim 1, wherein, After determining that the target compartment has frost blockage, the method further includes: Trigger the current defrost event to perform defrost treatment on the target room.

4. The method as described in claim 3, characterized in that, After the step of triggering the current defrosting event, the method further includes: The triggering mechanism of the current defrosting event is determined to be frost blockage detection, and it is determined whether there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, wherein the triggering time of the historical defrosting event is later than the time when the defrosting water capacity alarm was last output. When there are a preset number of historical defrosting events that are consecutive to the current defrosting event and whose triggering mechanism is frost blockage detection, an alarm prompt for defrosting water capacity is output.

5. The method as described in claim 3, characterized in that, The step of defrosting the target compartment includes: Obtain the set temperature and measured temperature of the target room; When both the set temperature and the measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator. When both the set temperature and the measured temperature are negative, the target compartment is defrosted by the defrosting heater of the refrigerator.

6. The method as described in claim 5, characterized in that, The step of defrosting the target compartment using the evaporator fan of the refrigerator includes: Control the refrigerator's compressor to stop running; The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the measured temperature at the top of the evaporator of the refrigerator reaches a first preset threshold, wherein the first preset threshold represents the temperature at which the frost in the target compartment can melt under positive temperature conditions.

7. The method as described in claim 5, characterized in that, The step of defrosting the target compartment using the defrost heater of the refrigerator includes: Control the refrigerator's compressor to stop running; The evaporator fan of the refrigerator is stopped. The refrigerator's heater is controlled to start running until the measured temperature at the top of the refrigerator's evaporator reaches a second preset threshold, wherein the second preset threshold represents the temperature at which frost in the target compartment can melt under negative temperature conditions.

8. A refrigerator frost blockage detection device, characterized in that, The refrigerator frost blockage detection device includes: The detection module is used to acquire the measured temperature of the target compartment once at a preset interval in response to the defrosting end event of the target compartment inside the refrigerator. The comparison module is used to compare the measured temperature with a preset temperature threshold to obtain a comparison result, wherein the preset temperature threshold is the temperature that can cause frost blockage in the target room. The frost blockage detection module is used to determine that the target room has frost blockage if the comparison results obtained for a consecutive preset number of times are all greater than or equal to the preset temperature threshold.

9. A refrigerator, characterized in that, The refrigerator includes a memory, a processor, and a refrigerator frost blockage detection program stored in the memory and executable on the processor. When executed by the processor, the refrigerator frost blockage detection program implements the steps of the refrigerator frost blockage detection method as described in any one of claims 1 to 7.

10. A computer storage medium, characterized in that, The refrigerator frost blockage identification program is stored and can run on a processor. The refrigerator frost blockage identification program is invoked by the processor to implement the steps of the refrigerator frost blockage identification method according to any one of claims 1 to 7.

11. A vehicle, characterized in that, include: Vehicle body; as well as The refrigerator as claimed in any one of claims 1 to 10, wherein the refrigerator is disposed on the vehicle body.

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