Refrigerator defrosting methods, devices, refrigerators, storage media, and vehicles

Abstract

This application discloses a refrigerator defrosting method, apparatus, refrigerator, storage medium, and vehicle, relating to the field of refrigerator control technology. The refrigerator defrosting method includes: responding to a defrosting completion event in a target compartment within the refrigerator, monitoring the cumulative door-opening time of the target compartment; extending the cumulative door-opening time to obtain an extended duration; and defrosting the target compartment when the extended duration reaches a preset defrosting cycle. This application can improve the timeliness of refrigerator defrosting, thereby improving refrigerator performance.

Description

Technical Field

[0001] This application relates to the field of refrigerator control technology, and in particular to a refrigerator defrosting 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 defrost cycle is typically preset during defrosting, with the defrost operation performed once every set interval. However, this method of defrosting at fixed intervals may result in the frost layer on the evaporator not melting in time, leading to a decrease in evaporator heat exchange efficiency, which in turn causes a decline in the refrigerator's cooling performance, or even a failure to cool properly.

[0004] Therefore, improving the timeliness of refrigerator defrosting to enhance refrigerator performance is an urgent problem that needs to be solved. Summary of the Invention

[0005] The main objective of this application is to provide a method, apparatus, refrigerator, storage medium, and vehicle for defrosting a refrigerator, with the aim of improving the timeliness of defrosting and thus enhancing the refrigerator's performance.

[0006] To achieve the above objectives, this application provides a refrigerator defrosting method, the refrigerator defrosting method comprising:

[0007] In response to the defrosting completion event of a target compartment inside the refrigerator, the cumulative door opening time of the target compartment is monitored;

[0008] The cumulative door opening time is extended to obtain the extended time.

[0009] When the extended duration reaches the preset defrosting cycle, the target room is defrosted.

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

[0011] In response to the defrosting completion event of the target compartment inside the refrigerator, the defrosting cycle is set to a first preset cycle, and the ambient temperature of the space where the refrigerator is located and the cumulative number of times the target compartment is opened are monitored;

[0012] When the ambient temperature is higher than a preset temperature threshold and the cumulative number of door openings reaches a preset number of openings threshold, the target extension duration corresponding to the current moment is obtained. The target extension duration is the extension duration obtained by extending the cumulative door opening duration of the target room within the target time period. The target time period is the time period starting from the trigger time of the defrosting end event and ending at the current moment.

[0013] If the target extension duration is less than the first preset cycle, the defrosting cycle is updated.

[0014] In one embodiment, the step of updating the defrosting cycle includes:

[0015] Determine whether the target extension duration is less than a second preset period, wherein the second preset period is less than the first preset period;

[0016] If the target extension time is less than the second preset period, then the defrosting period is updated to the second preset period;

[0017] If the target extension duration is greater than or equal to the second preset period, then the defrosting period is updated to the target extension duration.

[0018] In one embodiment, the step of extending the cumulative door opening time to obtain an extended time includes:

[0019] The extended duration is obtained by multiplying the cumulative door opening time by a preset time extension coefficient.

[0020] In one embodiment, the step of defrosting the target compartment includes:

[0021] Obtain the set temperature and the first measured temperature of the target room;

[0022] When both the set temperature and the first measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator;

[0023] When both the set temperature and the first measured temperature are negative, the target compartment is defrosted by the defrosting heater of the refrigerator.

[0024] In one embodiment, the step of defrosting the target compartment using the evaporator fan of the refrigerator includes:

[0025] Control the refrigerator's compressor to stop running;

[0026] The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the second measured temperature at the top of the evaporator of the refrigerator reaches the 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.

[0027] In one embodiment, the step of defrosting the target compartment using the defrost heater of the refrigerator includes:

[0028] Control the refrigerator's compressor to stop running;

[0029] The evaporator fan of the refrigerator is stopped.

[0030] The refrigerator's heater is controlled to start running until the second 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.

[0031] Furthermore, to achieve the above objectives, this application also provides a refrigerator defrosting device, the refrigerator defrosting device comprising:

[0032] The monitoring module is used to monitor the cumulative door opening time of the target compartment in response to the defrosting completion event of the target compartment inside the refrigerator.

[0033] An extension processing module is used to extend the cumulative door opening time to obtain an extended time.

[0034] The defrosting module is used to defrost the target room when the extended duration reaches the preset defrosting cycle.

[0035] In addition, to achieve the above objectives, this application also provides a refrigerator, which includes a memory, a processor, and a refrigerator defrosting 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 defrosting method as described above.

[0036] In addition, to achieve the above objectives, this application also provides a computer storage medium storing a refrigerator defrosting program that can run on a processor, the program being invoked by the processor to implement the steps of the refrigerator defrosting method described above.

[0037] 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.

[0038] 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 defrosting method described above.

[0039] This application provides a method for defrosting a refrigerator. In response to a defrosting completion event of a target compartment in the refrigerator, this application starts monitoring the cumulative door opening time of the target compartment, extends the cumulative door opening time to obtain an extended time, and then performs defrosting on the target compartment when the extended time reaches a preset defrosting cycle.

[0040] In summary, after the defrosting of the target compartment is completed, this application begins to monitor the cumulative door opening time of the target compartment and extends the cumulative door opening time to obtain an extended time. This extended time is then compared with a preset defrosting cycle. When the extended time reaches the preset defrosting cycle, defrosting is initiated in the target compartment. In other words, the longer the cumulative door opening time, the faster the defrosting process begins. Thus, compared to the traditional method of performing defrosting only once at fixed intervals, which leads to untimely defrosting, this application considers the potential for frost buildup inside the refrigerator when the door is open. It designs a strategy that dynamically adjusts the timing speed based on the monitored door opening time. Specifically, when the refrigerator door is open, the timing speed increases, allowing the extended time to reach the preset defrosting cycle more quickly. This improves the timeliness of melting the frost inside the refrigerator, thereby preventing a decrease in evaporator heat exchange efficiency and improving the refrigerator's performance. Attached Figure Description

[0041] 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.

[0042] 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.

[0043] Figure 1 This is a schematic diagram of the internal structure of a vehicle-mounted refrigerator according to an embodiment of the refrigerator defrosting method of this application;

[0044] Figure 2 This is a schematic flowchart of a refrigerator defrosting method according to an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the defrosting timing process of the refrigerator defrosting method according to an embodiment of this application;

[0046] Figure 4This is a schematic diagram of the refrigerator defrosting process according to an embodiment of the present application;

[0047] Figure 5 This is a schematic diagram of the module structure of the refrigerator defrosting device according to an embodiment of this application;

[0048] Figure 6 This is a schematic diagram of the hardware operating environment involved in the embodiments of this application.

[0049] Explanation of icon numbers:

[0050] 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.

[0051] 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

[0052] 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.

[0053] 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.

[0054] Currently, for refrigerators using air-cooling technology, a fixed defrost cycle is typically preset during defrosting, with the defrost operation performed once every set interval. However, this method of defrosting at fixed intervals may result in the frost layer on the evaporator not melting in time, leading to a decrease in evaporator heat exchange efficiency, which in turn causes a decline in the refrigerator's cooling performance, or even a failure to cool properly.

[0055] Therefore, improving the timeliness of refrigerator defrosting to enhance refrigerator performance is an urgent problem that needs to be solved.

[0056] The main solution of this application is: in response to the defrosting end event of the target compartment in the refrigerator, the cumulative door opening time of the target compartment is monitored; the cumulative door opening time is extended to obtain an extended time; when the extended time reaches the preset defrosting cycle, the target compartment is defrosted.

[0057] This application monitors the cumulative door-opening time of the target compartment after one defrosting cycle and extends this extended time. This extended time is then compared to a preset defrosting cycle. When the extended time reaches the preset defrosting cycle, defrosting is initiated in the target compartment. In other words, the longer the cumulative door-opening time, the faster the defrosting process begins. Compared to the traditional method of performing defrosting at fixed intervals, which can lead to delayed defrosting, this application considers the potential for frost buildup when the refrigerator door is open. It employs a strategy that dynamically adjusts the timing based on the monitored door-opening time. Specifically, when the refrigerator door is open, the timing speed increases, allowing the extended time to reach the preset defrosting cycle more quickly. This improves the timeliness of frost melting, preventing a decrease in evaporator heat exchange efficiency and enhancing the refrigerator's performance.

[0058] The executing entity in this embodiment can be a household refrigerator using air-cooling technology or a vehicle refrigerator using air-cooling technology. The refrigerator can be a wide-range temperature-controlled refrigerator or a narrow-range temperature-controlled refrigerator. The following description uses an air-cooled vehicle refrigerator as an example to illustrate this embodiment and the subsequent embodiments.

[0059] like Figure 1 The 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.

[0060] Based on this, this application proposes a refrigerator defrosting method according to the first embodiment, please refer to... Figure 2The refrigerator defrosting method includes steps S10 to S30:

[0061] Step S10: In response to the defrosting end event of the target compartment inside the refrigerator, monitor the cumulative door opening time of the target compartment;

[0062] It should be noted that a refrigerator compartment refers to the space inside the refrigerator where items are stored. The defrost completion event is an event automatically triggered when a defrost cycle is completed. Any compartment within the refrigerator is referred to as the target compartment for distinction. It can be understood that at the end of a defrost cycle, monitoring for the next defrost monitoring cycle begins; that is, the cumulative door-opening time of the target compartment recorded in the previous defrost monitoring cycle is reset to zero, and monitoring of the cumulative door-opening time of the target compartment restarts. The cumulative door-opening time within the current defrost monitoring cycle refers to the total time the refrigerator door corresponding to the target compartment has been open since the most recent end of the defrost cycle. Furthermore, it should be understood that when the extended time detected within a defrost monitoring cycle reaches the preset defrost cycle, the defrost step is executed. Upon the end of defrost, monitoring for the next defrost monitoring cycle begins, and this cycle repeats.

[0063] When a defrosting event is detected in the target compartment of the refrigerator, the system begins monitoring the cumulative door arrival time of the target compartment in response to the defrosting event.

[0064] Step S20: Extend the cumulative door opening time to obtain an extended time;

[0065] The cumulative door opening time monitored is extended to obtain the extended time (hereinafter referred to as the extended time for distinction). It can be understood that the extended time is longer than the cumulative door opening time.

[0066] In this embodiment, step S20 may include step S201:

[0067] Step S201: Multiply the cumulative door opening time by a preset time extension coefficient to obtain the extended time.

[0068] It should be noted that a pre-set coefficient (hereinafter referred to as the time extension coefficient for distinction) is used to guide the extended processing. This time extension coefficient is greater than 1. This application embodiment does not limit the specific size of the time extension coefficient. For example, the time extension coefficient can be set to 60 seconds, which means that 1 second of door opening is equivalent to 60 seconds in the defrosting cycle. This speeds up the extension time to reach the preset defrosting cycle and avoids the problem of frost blockage and abnormal cooling caused by excessive water vapor entering and accumulating at the evaporator due to excessive door opening time and failure to defrost in time.

[0069] Step S30: When the extended duration reaches the preset defrosting cycle, defrost the target room.

[0070] It should be noted that the defrosting cycle can be preset to any value that meets actual needs, and the specific size of the defrosting cycle is not limited in the embodiments of this application.

[0071] When the defrosting time is extended to reach the preset defrosting cycle, the defrosting process of the target room is triggered, that is, the target room is defrosted.

[0072] As the cumulative door opening time of the target compartment increases, the circulation of air and water vapor into the target compartment increases, and more water vapor returns to the built-in evaporator, leading to increased frost buildup. If defrosting is performed according to a fixed defrosting cycle, there is a risk of abnormal frost accumulation, i.e., frost blockage. Therefore, this application involves a strategy to accelerate the defrosting timer based on the door opening time. Specifically, in this embodiment, after one defrosting cycle of the target compartment is completed, the cumulative door opening time of the refrigerator's target compartment is monitored and extended. This extended time is then compared with a preset defrosting cycle. When the extended time reaches the preset defrosting cycle, the target compartment is defrosted. In other words, the longer the cumulative door opening time, the faster the defrosting process begins. Therefore, compared to the traditional method of defrosting the refrigerator at fixed intervals, which leads to untimely defrosting, this embodiment of the application takes into account the situation that frost layer is easily formed inside the refrigerator when the refrigerator door is opened. It designs a strategy that dynamically adjusts the timing speed based on the monitored door opening time. Specifically, when the refrigerator door is opened, the timing speed is increased, so that the extended time reaches the preset defrosting cycle more quickly, thereby improving the timeliness of melting the frost layer inside the refrigerator, thus avoiding the decrease in evaporator heat exchange efficiency and improving the working performance of the refrigerator.

[0073] Based on the first embodiment described above, a second embodiment of the refrigerator defrosting method of this application is proposed. In the second embodiment, the refrigerator defrosting method of this application further includes steps A10 to A30:

[0074] Step A10: In response to the defrosting end event of the target compartment in the refrigerator, the defrosting cycle is set to a first preset cycle, and the ambient temperature of the space where the refrigerator is located and the cumulative number of times the target compartment is opened are monitored.

[0075] Upon detecting the completion of defrosting in the target compartment of the refrigerator, in response to this event, the defrosting cycle is set to a preset initial value (hereinafter referred to as the first preset cycle for distinction), and monitoring of the ambient temperature of the space where the refrigerator is located and the cumulative number of times the target compartment door is opened begins. It should be noted that this embodiment does not limit the specific length of the first preset cycle; in this embodiment, the first preset cycle can be set to 12 hours. Ambient temperature refers to the room temperature within the space where the refrigerator is located. The cumulative number of times the target compartment door is opened refers to the total number of times the refrigerator door corresponding to the target compartment has been opened since the last time the defrosting process ended.

[0076] Step A20: When the ambient temperature is higher than a preset temperature threshold and the cumulative number of door openings reaches a preset number threshold, obtain the target extension duration corresponding to the current moment. The target extension duration is the extension duration obtained by extending the cumulative door opening duration of the target room within the target time period. The target time period is the time period starting from the triggering time of the defrosting end event and ending at the current moment.

[0077] It should be noted that the preset temperature threshold, i.e., the aforementioned preset temperature threshold, is used to characterize the temperature at which frost easily forms inside the refrigerator. This application embodiment does not limit the specific value of the preset temperature threshold; for example, in this embodiment, the preset temperature threshold is set to 30 degrees Celsius. The preset threshold for the cumulative number of door openings, i.e., the aforementioned preset number of openings threshold, is used to characterize the number of times the door is opened, which easily leads to frost forming inside the refrigerator. This application embodiment does not limit the specific value of the preset temperature threshold; for example, in this embodiment, the preset number of openings threshold is set to 10 times.

[0078] After obtaining the ambient temperature and the cumulative number of door openings, the system continuously checks whether the ambient temperature exceeds a preset temperature threshold and whether the cumulative number of door openings has reached a preset threshold. When both the ambient temperature and the cumulative number of door openings reach the preset threshold, the system obtains the corresponding extension duration (hereinafter referred to as the target extension duration for distinction). The current moment refers to the moment when the ambient temperature is detected to be higher than the preset temperature threshold and the cumulative number of door openings reaches the preset threshold. The time period starting from the trigger time of the most recent defrosting end event in the target room and ending at the current moment is called the target time period. The target extension duration is the extension duration obtained by extending the cumulative door opening duration of the target room within the target time period.

[0079] It is understandable that when the ambient temperature is higher than the preset temperature threshold and the cumulative number of times the door is opened reaches the preset number of times threshold, frost is more likely to form inside the refrigerator. The higher the ambient temperature and / or the more times the door is opened, the more likely it is to cause frost to form inside the refrigerator.

[0080] Step A30: If the target extension duration is less than the first preset cycle, update the defrosting cycle.

[0081] After obtaining the target extension duration at the current moment, it is determined whether the target extension duration is less than the first preset period. If the target extension duration is greater than or equal to the first preset period, the defrosting period is not updated; if the target extension duration is less than the first preset period, the defrosting period is updated.

[0082] In this embodiment, step A30 may include A301 to A303:

[0083] Step A301: Determine whether the target extension duration is less than the second preset period, wherein the second preset period is less than the first preset period;

[0084] It should be noted that another defrosting cycle value is preset (hereinafter referred to as the second preset cycle for distinction), and the second preset cycle is less than the first preset cycle. In this embodiment, the second preset cycle can be set to 8 hours, or it can be set to any value less than the first preset cycle according to actual needs. This application embodiment does not limit this.

[0085] Step A302: If the target extension duration is less than the second preset cycle, then the defrosting cycle is updated to the second preset cycle;

[0086] Determine whether the target extension duration is less than the second preset cycle. If the target extension duration is less than the second preset cycle, update the defrosting cycle to the second preset cycle.

[0087] For example, the first preset cycle is 12 hours and the second preset cycle is 8 hours. The ambient temperature is higher than the preset temperature threshold and the cumulative number of door openings reaches the preset number threshold as the frost condition. The moment when the frost condition is met (i.e. the current moment mentioned above) is determined. The target extension time corresponding to the current moment is determined to be 6 hours. Then the defrosting cycle is adjusted from 12 hours to 8 hours.

[0088] Step A303: If the target extension duration is greater than or equal to the second preset cycle, then the defrosting cycle is updated to the target extension duration.

[0089] Determine whether the target extension duration is less than the second preset cycle. If the target extension duration is greater than or equal to the second preset cycle, update the defrosting cycle to the target extension duration.

[0090] For example, the first preset cycle is 12 hours and the second preset cycle is 8 hours. The ambient temperature is higher than the preset temperature threshold and the cumulative number of door openings reaches the preset number threshold as the frost condition. The moment when the frost condition is met (i.e. the current moment mentioned above) is determined. The target extension time corresponding to the current moment is determined to be 9 hours. Then the defrosting cycle is adjusted from 12 hours to 9 hours, that is, the defrosting process is performed on the target room immediately.

[0091] For example, such as Figure 3 The diagram illustrates the defrosting timing process. Upon completion of the most recent defrosting of the target compartment (i.e., when the defrosting completion event of the target compartment is detected), a new defrosting monitoring cycle begins, set to the first preset cycle T1. The cumulative door opening time of the target compartment within the current defrosting monitoring cycle is re-monitored. Simultaneously, the ambient temperature of the space where the refrigerator is located and the cumulative number of door openings in the target compartment are monitored. Defrosting timing is then performed based on the cumulative door opening time, i.e., the cumulative door opening time is extended to obtain an extended duration. It is then determined whether the extended duration reaches the preset defrosting cycle. If it does, defrosting of the target compartment is executed. Finally, it is determined whether the ambient temperature is met. The system identifies frosting conditions where the temperature exceeds a preset threshold and the cumulative number of door openings exceeds a preset threshold. When the frosting conditions are met, the system obtains the target extension duration corresponding to the current moment and determines whether the target extension duration is less than a first preset period T1. If the target extension duration is less than the first preset period T1, the system further determines whether the target extension duration is less than a second preset period T2, where the second preset period is less than the first preset period. If the target extension duration is less than the second preset period T2, the defrosting cycle is updated to the second preset period T2. If the target extension duration is greater than or equal to the second preset period T2, the defrosting cycle is updated to the target extension duration, i.e., the defrosting step is executed immediately.

[0092] Thus, in this embodiment of the application, after entering a new defrost monitoring cycle, the ambient temperature in the space where the refrigerator is located and the cumulative number of times the target compartment is opened are monitored. Based on these two data, it is determined whether the target compartment meets the frost formation conditions. If the frost formation conditions are met, the current target extension time is determined. If the target extension time is less than the first preset cycle, the defrost cycle is updated based on the relationship between the target extension time and the second preset cycle. Specifically, when it is determined that the frost formation conditions are met, the defrost cycle is shortened to melt the frost layer in the target compartment as soon as possible, which improves the timeliness of defrosting and thus improves the performance of the evaporator and the refrigerator.

[0093] Based on the first and second embodiments described above, a third embodiment of the refrigerator defrosting method of this application is proposed. In the third embodiment, step S30 may include steps S301 to S303:

[0094] Step S301: Obtain the set temperature and the first measured temperature of the target room;

[0095] 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) is located at the lower part of the evaporator fan duct assembly of the refrigerator, used to detect the temperature inside the target compartment. The temperature detected by the internal temperature sensor is referred to as the first measured temperature.

[0096] Step S302: When both the set temperature and the first measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator.

[0097] 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 using air-cooling technology mainly rely on the coordinated operation of the compressor, evaporator, and evaporator fan to achieve the cooling effect.

[0098] After obtaining the set temperature and the first measured temperature, it is determined whether both of these data are positive temperatures, i.e., whether they are greater than 0 degrees Celsius. If both the set temperature and the first measured temperature are positive temperatures, the target compartment is defrosted by the refrigerator's evaporator fan.

[0099] In this embodiment, step S302 may include steps B10 to B20:

[0100] Step B10: Control the refrigerator's compressor to stop running;

[0101] When both the set temperature and the first measured temperature 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 high-temperature, high-pressure gas to obtain a low-temperature, low-pressure liquid, which is then sent to the evaporator. Finally, the evaporator evaporates the low-temperature, low-pressure liquid to generate 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.

[0102] Step B20: The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the second measured temperature at the top of the evaporator of the refrigerator reaches the 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.

[0103] 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) is used to determine whether to exit the defrost mode. The aforementioned defrost mode 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 frost in the target compartment can melt under positive temperature conditions. In other words, when the measured temperature in the target compartment reaches the first preset threshold, it is considered that the frost in the target compartment has 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 defrost temperature sensor) is installed at the top of the refrigerator's evaporator piping to detect the temperature at the top of the evaporator. The temperature data detected by the defrost temperature sensor is referred to as the second measured temperature. Furthermore, it should be understood that because the internal temperature sensor and the defrost temperature sensor are located in different positions within the refrigerator, the temperature values ​​detected by these two sensors will differ. Therefore, the measured temperatures detected by the two sensors serve different purposes. Both the first and second measured temperatures are dynamic values; that is, the first measured temperature refers to the temperature data detected by the internal temperature sensor at different times, and the second measured temperature refers to the temperature data detected by the defrost temperature sensor at different times.

[0104] 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. Thus, it should be understood that because the compressor has stopped working and is no longer cooling, the temperature inside the target compartment gradually rises, and the frost layer begins to melt as the temperature increases. The defrosting mode is then considered complete when the second measured temperature at the top of the evaporator in the target compartment reaches the first preset threshold.

[0105] For example, when the obtained set temperature is positive and the first measured temperature detected by the temperature sensor inside the refrigerator is also positive, the defrosting program 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 inside the refrigerator 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 temperature collected in real time by the defrosting temperature sensor located at the top of the evaporator pipes, i.e., the second measured temperature, is obtained, and it is determined whether the second measured temperature reaches a first preset threshold. If the second measured temperature reaches the first preset threshold, the defrosting stage is exited.

[0106] 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 second 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.

[0107] In this embodiment, after step B30, the refrigerator defrosting method of this application further includes steps B40 to B50:

[0108] Step B40: 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.

[0109] Step B50: When the first measured temperature reaches the positive start-up temperature, control the compressor and the evaporator fan to start running.

[0110] 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.

[0111] 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.

[0112] In this embodiment, after step B40, the refrigerator defrosting method of this application may include steps B60 to B70:

[0113] Step B60: When the first measured temperature reaches the positive start-up temperature, control the compressor to start running;

[0114] Step B70: When the current running time of the compressor reaches the first preset time, control the evaporator fan to start running.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] Step S303: When both the set temperature and the first measured temperature are negative, the target compartment is defrosted by the defrosting heater of the refrigerator.

[0119] When both the set temperature and the first measured temperature are negative, the target compartment is defrosted using the refrigerator's defrosting heater.

[0120] In this embodiment, step S303 may include steps C10 to C30:

[0121] Step C10: Control the refrigerator's compressor to stop running;

[0122] Step C20: Control the evaporator fan of the refrigerator to stop running;

[0123] Step C30: Control the refrigerator's heater to start running until the second 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 compartment can melt under negative temperature conditions.

[0124] 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 room is at a negative temperature. A preset room 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 room can melt under negative room temperature conditions. That is, when the second measured temperature reaches the second preset threshold, it is considered that the frost in the target room has basically melted. It should be understood that the aforementioned second preset threshold is also an empirical value.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] In this embodiment, after step C30, the refrigerator defrosting method of this application further includes steps C40 to C50:

[0129] Step C40: 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.

[0130] Step C50: When the second measured temperature reaches the negative temperature start-up temperature, control the compressor and evaporator fan of the refrigerator to start running.

[0131] 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.

[0132] 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 detected by the defrosting temperature sensor reaches the negative start-up temperature, the compressor and evaporator fan are restarted.

[0133] In this embodiment, after step C40, the refrigerator defrosting method of this application may include steps C60 to C70:

[0134] Step C60: When the second measured temperature reaches the negative temperature start-up temperature, control the refrigerator compressor to start running;

[0135] Step C70: When the current running time of the compressor reaches the first preset time, control the evaporator fan of the refrigerator to start running.

[0136] 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.

[0137] 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.

[0138] For example, such as Figure 4 The diagram illustrates the refrigerator defrosting 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 from 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 has reached the positive start-up temperature. If so, the compressor is first turned on. 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 turned off, and the heater is turned on until the second measured temperature reaches the second preset threshold. Then, the heater is turned off. 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 the second preset time.

[0139] This application also provides a refrigerator defrosting device; please refer to... Figure 5 The refrigerator defrosting device includes:

[0140] The monitoring module 10 is used to monitor the cumulative door opening time of the target compartment in response to the defrosting end event of the target compartment inside the refrigerator.

[0141] The extension processing module 20 is used to extend the cumulative door opening time to obtain an extended time.

[0142] The defrosting module 30 is used to defrost the target room when the extended duration reaches the preset defrosting cycle.

[0143] Optionally, the refrigerator defrosting method of this application further includes a periodic update module, which is used for:

[0144] In response to the defrosting completion event of the target compartment inside the refrigerator, the defrosting cycle is set to a first preset cycle, and the ambient temperature of the space where the refrigerator is located and the cumulative number of times the target compartment is opened are monitored;

[0145] When the ambient temperature is higher than a preset temperature threshold and the cumulative number of door openings reaches a preset number of openings threshold, the target extension duration corresponding to the current moment is obtained. The target extension duration is the extension duration obtained by extending the cumulative door opening duration of the target room within the target time period. The target time period is the time period starting from the trigger time of the defrosting end event and ending at the current moment.

[0146] If the target extension duration is less than the first preset cycle, the defrosting cycle is updated.

[0147] Optionally, the periodic update module is further configured to:

[0148] Determine whether the target extension duration is less than a second preset period, wherein the second preset period is less than the first preset period;

[0149] If the target extension time is less than the second preset period, then the defrosting period is updated to the second preset period;

[0150] If the target extension duration is greater than or equal to the second preset period, then the defrosting period is updated to the target extension duration.

[0151] Optionally, the extension processing module 20 is further configured to:

[0152] The extended duration is obtained by multiplying the cumulative door opening time by a preset time extension coefficient.

[0153] Optionally, the defrosting module 30 is further configured to:

[0154] Obtain the set temperature and the first measured temperature of the target room;

[0155] When both the set temperature and the first measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator;

[0156] When both the set temperature and the first measured temperature are negative, the target compartment is defrosted by the defrosting heater of the refrigerator.

[0157] Optionally, the defrosting module 30 is further configured to:

[0158] Control the refrigerator's compressor to stop running;

[0159] The air circulation in the target compartment is promoted by the evaporator fan of the refrigerator until the second measured temperature at the top of the evaporator of the refrigerator reaches the 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.

[0160] Optionally, the defrosting module 30 is further configured to:

[0161] Control the refrigerator's compressor to stop running;

[0162] The evaporator fan of the refrigerator is stopped.

[0163] The refrigerator's heater is controlled to start running until the second 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.

[0164] The refrigerator defrosting device provided in this application, employing the refrigerator defrosting method in the above embodiments, can improve the timeliness of refrigerator defrosting, thereby improving refrigerator performance. Compared with the prior art, the beneficial effects of the refrigerator defrosting device provided in this application are the same as those of the refrigerator defrosting method provided in the above embodiments, and other technical features in the refrigerator defrosting device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0165] 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 defrosting method described in the above embodiments.

[0166] The following is for reference. Figure 6It 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.

[0167] 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.

[0168] 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.

[0169] The refrigerator provided in this application embodiment, employing the defrosting method described in the above embodiments, can improve the timeliness of defrosting, thereby enhancing the refrigerator's performance. Compared with the prior art, the beneficial effects of the refrigerator provided in this application embodiment are the same as those of the defrosting method provided 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.

[0170] 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.

[0171] 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.

[0172] This application also provides a computer storage medium storing a smart home system program that can run on a processor, wherein computer-readable program instructions are used to execute the refrigerator defrosting method in the above embodiments.

[0173] 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.

[0174] The aforementioned computer storage medium may be included in the refrigerator; or it may exist independently and not be installed in the refrigerator.

[0175] The aforementioned computer storage medium carries one or more programs. When the refrigerator executes one or more of these programs, the refrigerator: responds to a defrosting end event in a target compartment within the refrigerator, monitors the cumulative door opening time of the target compartment; extends the cumulative door opening time to obtain an extended duration; and defrosts the target compartment when the extended duration reaches a preset defrosting cycle.

[0176] 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).

[0177] 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.

[0178] 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.

[0179] 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 defrosting method, which can improve the timeliness of refrigerator defrosting and thus improve refrigerator performance. Compared with the prior art, the beneficial effects of the computer storage medium 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.

[0180] This application also provides a vehicle, including: a vehicle body; and the refrigerator, the refrigerator being disposed on the vehicle body.

[0181] The vehicle provided in this application embodiment can improve the timeliness of refrigerator defrosting, thereby improving refrigerator performance. 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.

[0182] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the refrigerator defrosting method described above.

[0183] The computer program product provided in this application can improve the timeliness of refrigerator defrosting, thereby improving refrigerator performance. 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 defrosting method provided in the above embodiments, and will not be repeated here.

[0184] 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 for defrosting a refrigerator, characterized in that, The refrigerator defrosting method includes: In response to the defrosting completion event of a target compartment inside the refrigerator, the cumulative door opening time of the target compartment is monitored; The cumulative door opening time is extended to obtain the extended time. When the extended duration reaches the preset defrosting cycle, the target room is defrosted.

2. The method as described in claim 1, characterized in that, The method further includes: In response to the defrosting completion event of the target compartment inside the refrigerator, the defrosting cycle is set to a first preset cycle, and the ambient temperature of the space where the refrigerator is located and the cumulative number of times the target compartment is opened are monitored; When the ambient temperature is higher than a preset temperature threshold and the cumulative number of door openings reaches a preset number of openings threshold, the target extension duration corresponding to the current moment is obtained. The target extension duration is the extension duration obtained by extending the cumulative door opening duration of the target room within the target time period. The target time period is the time period starting from the trigger time of the defrosting end event and ending at the current moment. If the target extension duration is less than the first preset cycle, the defrosting cycle is updated.

3. The method as described in claim 2, characterized in that, The step of updating the defrosting cycle includes: Determine whether the target extension duration is less than a second preset period, wherein the second preset period is less than the first preset period; If the target extension time is less than the second preset period, then the defrosting period is updated to the second preset period; If the target extension duration is greater than or equal to the second preset period, then the defrosting period is updated to the target extension duration.

4. The method as described in claim 1, characterized in that, The step of extending the cumulative door opening time to obtain the extended time includes: The extended duration is obtained by multiplying the cumulative door opening time by a preset time extension coefficient.

5. The method according to any one of claims 1 to 4, characterized in that, The step of defrosting the target compartment includes: Obtain the set temperature and the first measured temperature of the target room; When both the set temperature and the first measured temperature are positive, the target compartment is defrosted by the evaporator fan of the refrigerator; When both the set temperature and the first 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 second measured temperature at the top of the evaporator of the refrigerator reaches the 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 second 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 defrosting device, characterized in that, The refrigerator defrosting device includes: The monitoring module is used to monitor the cumulative door opening time of the target compartment in response to the defrosting completion event of the target compartment inside the refrigerator. An extension processing module is used to extend the cumulative door opening time to obtain an extended time. The defrosting module is used to defrost the target room when the extended duration reaches the preset defrosting cycle.

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

10. A computer storage medium, characterized in that, The refrigerator defrosting program is stored and can run on a processor, the refrigerator defrosting program being invoked by the processor to implement the steps of the refrigerator defrosting 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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