Air door fault detection method, device, computer readable storage medium and refrigerator

Abstract

The embodiment of the application provides a damper fault detection method and device, a computer readable storage medium and a refrigerator, and belongs to the field of household appliances. When the refrigerator is running, the running vibration intensity of the damper is acquired. If the running vibration intensity is greater than a first intensity threshold, it is determined that the damper has an icing fault. If the running vibration intensity is not greater than the first intensity threshold, it is determined that the damper does not have an icing fault. By detecting the running vibration intensity of the damper, the detection cost is reduced while ensuring the damper fault detection effect, and industrial utilization is realized.

Description

Technical Field

[0001] This application belongs to the field of household appliances, and particularly relates to a method, apparatus, computer-readable storage medium, and refrigerator for detecting damper malfunctions. Background Technology

[0002] When a refrigerator starts cooling, the damper can easily freeze and ic up during opening and closing due to moisture molecules in the air or the presence of hot food. This can cause the damper to malfunction and affect the cooling of the refrigerator compartment. While existing refrigerators use numerous and varied detection devices to determine if the damper is icing up, the high cost of these devices hinders large-scale industrial adoption. Summary of the Invention

[0003] This application provides a method, apparatus, computer-readable storage medium, and refrigerator for detecting damper malfunctions, in order to solve the problem of high cost in existing damper icing fault detection methods.

[0004] A method for detecting damper malfunctions, applied to a refrigerator, the refrigerator including a refrigerator compartment, the refrigerator compartment being equipped with a damper, the method comprising:

[0005] During refrigerator operation, the vibration intensity of the damper is measured;

[0006] If the intensity of the operating vibration is greater than the first intensity threshold, it is determined that the damper has icing failure.

[0007] If the vibration intensity is not greater than the first intensity threshold, it is determined that the damper has not experienced an icing failure.

[0008] Optionally, obtaining the operating vibration intensity of the damper includes:

[0009] Obtain the first temperature of the cold storage compartment, and when the first temperature of the cold storage compartment reaches the cold storage start-up point, obtain the damper opening time;

[0010] Obtain the second temperature of the cold storage compartment. When the second temperature of the cold storage compartment reaches the cold storage shutdown point, obtain the damper closing time and the difference between the damper closing time and the damper closing time.

[0011] The vibration frequency of the damper within the difference is obtained, and the operating vibration intensity is determined based on the vibration frequency.

[0012] Optionally, if the operating vibration intensity is greater than a first intensity threshold, after determining that the damper has icing fault, the following steps are taken:

[0013] If the operating vibration intensity is greater than the first intensity threshold and less than the second intensity threshold, the damper fault is confirmed as the first icing fault.

[0014] If the vibration intensity is greater than or equal to the second intensity threshold, the damper fault is confirmed as a second icing fault, and the amount of icing in the second icing fault is greater than the amount of icing in the first icing fault.

[0015] Optionally, before confirming the damper failure as a first icing failure if the operating vibration intensity is greater than a first intensity threshold and less than a second intensity threshold, the following steps are included:

[0016] When the refrigerator is running, obtain the current status of the damper;

[0017] If the current state is an unfrozen state, then the first vibration intensity of the damper is obtained, and the first vibration intensity is determined to be the first intensity threshold.

[0018] If the current state is an icing state, then obtain the icing intensity of the damper;

[0019] When the icing intensity reaches the preset icing intensity, the second vibration intensity of the damper is obtained, and the second vibration intensity is determined as the second intensity threshold.

[0020] Optionally, when the refrigerator is running, obtaining the current state of the damper includes:

[0021] When the refrigerator is running, obtain the rate at which the refrigeration temperature decreases during operation;

[0022] If the descent rate is greater than or equal to the first descent rate, the damper is in an unfrozen state.

[0023] If the descent rate is less than the first descent rate, the damper is in an icing state.

[0024] Optionally, if the descent rate is less than the first descent rate, then after the damper is in an icing state, the following steps are taken:

[0025] Determine whether the rate of decrease in operation has reached the second rate of decrease;

[0026] When the descent rate reaches the second descent rate, the current damper icing intensity is obtained and confirmed to be the preset icing intensity.

[0027] Optionally, after confirming that the damper malfunction is a first icing malfunction, the process includes:

[0028] Perform the damper reset action and obtain the third vibration intensity of the damper;

[0029] When the intensity of the third vibration is not greater than the intensity threshold, it is determined that the first icing fault of the damper has been eliminated.

[0030] After confirming that the damper malfunction is a second type of icing malfunction, the following steps are included:

[0031] Heating the damper to obtain the fourth vibration intensity of the damper;

[0032] When the fourth vibration intensity is not greater than the second intensity threshold, it is determined that the second icing fault of the damper has been eliminated.

[0033] This application also provides a damper fault detection device, comprising:

[0034] The detection module is used to acquire the vibration intensity of the damper during refrigerator operation;

[0035] The determination module is used to determine whether the vibration intensity is greater than the first intensity threshold. If the operating vibration intensity is greater than the first intensity threshold, the damper has an icing fault. If the operating vibration intensity is not greater than the first intensity threshold, the damper has not an icing fault.

[0036] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the damper fault detection method as described above.

[0037] This application also provides a refrigerator, including a processor and a memory, the memory having a computer program, the processor executing the damper fault detection method as described above by calling the computer program.

[0038] This application provides a method, apparatus, computer-readable storage medium, and refrigerator for detecting damper malfunctions. During refrigerator operation, the method acquires the operating vibration intensity of the damper. If the operating vibration intensity exceeds a first intensity threshold, an icing malfunction is determined to have occurred in the damper; if the operating vibration intensity does not exceed the first intensity threshold, an icing malfunction is determined to have not occurred in the damper. By detecting the operating vibration intensity of the damper, the detection cost is reduced while ensuring effective damper malfunction detection, thus enabling industrial application. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0041] Figure 1 This is a schematic diagram of the first process of the damper fault feedback method provided in this embodiment.

[0042] Figure 2This is a schematic diagram of the second process of the damper fault feedback method provided in this embodiment.

[0043] Figure 3 This is a schematic diagram of the third process of the damper fault feedback method provided in this embodiment.

[0044] Figure 4 This is a schematic diagram of the fourth process of the damper fault feedback method provided in this embodiment.

[0045] Figure 5 This is a schematic diagram of the fifth process of the damper fault feedback method provided in this embodiment.

[0046] Figure 6 This is a schematic diagram of the sixth process of the damper fault feedback method provided in this embodiment.

[0047] Figure 7 This is a schematic diagram of the seventh process of the damper fault feedback method provided in this embodiment.

[0048] Figure 8 This is a schematic diagram of the damper fault detection device provided in this application.

[0049] Figure 9 This is a schematic diagram of the refrigerator provided in this embodiment. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0051] This embodiment provides a damper fault feedback method. This defrosting control method can be executed by a processor in a terminal such as a management terminal. The damper fault feedback method is applicable to refrigerators, for example, to frost-free refrigerators. The refrigerator can have two independent cooling compartments, including a refrigerator compartment and a freezer compartment. The damper can be located between the freezer compartment and the refrigerator compartment, or between the variable temperature compartment and the refrigerator compartment. The damper is used to control the cooling of the refrigerator compartment by the freezer compartment when the refrigerator is operating in cooling mode.

[0052] Please see Figure 1 , Figure 1 This is a first flowchart illustrating the damper fault feedback method provided in this embodiment. The damper fault feedback method includes:

[0053] 10. During refrigerator operation, obtain the vibration intensity of the damper.

[0054] 20. If the vibration intensity is greater than the first intensity threshold, it is determined that the damper has icing failure.

[0055] 30. If the vibration intensity is not greater than the first intensity threshold, it is determined that the damper has not experienced an icing failure.

[0056] Specifically, the refrigerator is in cooling mode during operation. The cooling process is primarily accomplished by the collaborative efforts of four key components: the compressor, condenser, expansion valve, and evaporator. In this way, the refrigerator can periodically maintain the temperature inside the freezer within a suitable range, thus keeping food fresh. When the internal temperature of the frost-free refrigerator rises, the refrigerant absorbs heat from the interior in the evaporator, becoming a low-temperature, low-pressure gas. This gas is then drawn into the compressor, compressed, and becomes a high-temperature, high-pressure gas. It then dissipates heat through the condenser, becoming a high-pressure liquid. After being depressurized by the expansion valve, it re-enters the evaporator to absorb heat from the interior, exchanging heat with the surrounding air to lower its temperature and create a cooling airflow. During cooling operation, the freezer compartment is cooled by the evaporator. If the refrigerator compartment needs cooling, the opening of the damper allows the cooling airflow generated in the freezer compartment to enter the refrigerator compartment, thus creating a cycle that gradually cools both the freezer and refrigerator compartments.

[0057] When a refrigerator cools, cold air passes through the damper, inevitably causing the damper to vibrate. The refrigerator includes a vibration sensor, which can be located at the bottom of the damper. In some embodiments, the vibration sensor can consist of a mass and a spring. When the damper vibrates, the mass is displaced by the vibration force. This displacement causes the spring to deform, thus changing its spring constant. This change in displacement and spring constant is sensed by the internal circuitry of the sensor and converted into an electrical signal, which is then output to the processor. After receiving the vibration signal, the processor processes the vibration value. If the obtained vibration intensity exceeds a first intensity threshold, it indicates that the damper is under significant pressure from the ice layer, leading to increased vibration amplitude and causing the damper to freeze. This freezing fault can be ice buildup on the damper door itself or within a certain area around the damper. The certain area around the damper can be manually set based on the detection range of the vibration sensor or set as a fixed parameter of the refrigerator based on the actual freezing situation.

[0058] For example, please refer to Figure 2 , Figure 2 This is a schematic diagram of the second process of the damper fault feedback method provided in this embodiment.

[0059] The acquisition of the operating vibration intensity of the damper includes:

[0060] 101. Obtain the first temperature of the cold storage compartment. When the first temperature of the cold storage compartment reaches the cold storage start-up point, obtain the air damper opening time.

[0061] 102. Obtain the second temperature of the cold storage compartment. When the second temperature of the cold storage compartment reaches the cold storage shutdown point, obtain the damper closing time and the difference between the damper closing time and the damper closing time.

[0062] 103. Obtain the number of vibrations of the damper within the difference, and determine the operating vibration intensity based on the number of vibrations.

[0063] Specifically, in some embodiments, the intensity of the operational vibration can be determined by acquiring the vibration frequency of the damper. The refrigerator is equipped with a damper controller. When the first temperature of the refrigerator compartment rises above the refrigerator start-up point, the damper controller opens the damper to cool the refrigerator compartment. When the second temperature of the refrigerator compartment drops below the refrigerator stop-down point, the damper controller closes the damper to stop cooling the refrigerator compartment. The damper opening time is determined by the refrigerator start-up point, and the damper closing time is determined by the refrigerator stop-down point. In actual operation, when the second temperature of the refrigerator compartment reaches the refrigerator stop-down point, the damper may not actually close completely due to icing failure, but this does not affect the actual value of the damper closing time. The damper opening time includes the time from when the damper is closed to when it is open and maintained in the open / closed state, which can be 4 seconds. The damper closing time includes the time from when the damper is maintained in the open / closed state to when it is closed, which can also be 4 seconds. During the time period from when the damper is open to when it is maintained in the open / closed state and then to when the damper is closed, the vibration sensor continuously acquires the number of vibrations of the damper and obtains the number of vibrations of the damper per unit time. The intensity of the operating vibration is determined by the magnitude of the number of vibrations per unit time. In some embodiments, the intensity of the operating vibration can also be determined by acquiring the offset of the damper when it is opened and closed.

[0064] For example, please refer to Figure 3 , Figure 3 This is a schematic diagram of the third process of the damper fault feedback method provided in this embodiment. If the operating vibration intensity is greater than a first intensity threshold, after determining that the damper has experienced an icing fault, the process includes:

[0065] 201. If the vibration intensity is greater than the first intensity threshold and less than the second intensity threshold, the damper fault is confirmed as the first icing fault.

[0066] 202. If the operating vibration intensity is greater than or equal to the second intensity threshold, the damper fault is confirmed as a second icing fault, and the amount of icing in the second icing fault is greater than the amount of icing in the first icing fault.

[0067] Specifically, the first icing fault is partial icing of the damper, and the second icing fault is complete icing of the damper. Therefore, the amount of ice under the second icing fault is greater than the amount of ice under the first icing fault. In some embodiments, when the damper experiences the first icing fault, the area of ​​the damper covered by ice is the first area; when the damper experiences the second icing fault, the area of ​​the damper covered by ice is the second area, which is greater than the first area. A complete icing fault does not necessarily mean that 100% of the damper's area is covered by ice. For example, if more than 90% of the damper's area is covered by ice, it can be considered completely iced. In some embodiments, the icing state can also be determined by the ice thickness. When the damper is partially iced, the ice thickness is the first thickness; when the damper is completely iced, the ice thickness is the second thickness, which is greater than the first thickness. In addition, in some embodiments, the icing state can also be determined by the remaining area of ​​the air duct opening. When the damper is partially iced, the remaining area of ​​the air duct opening is the third area. When the damper is completely iced, the remaining area of ​​the air duct opening is the fourth area. Since the remaining area of ​​the air duct is small due to ice blockage, the fourth area is smaller than the third area.

[0068] For example, please refer to Figure 4 , Figure 4 This is a schematic diagram of the fourth process of the damper fault feedback method provided in this embodiment. Before confirming that the damper fault is a first icing fault, the process includes:

[0069] 11. When the refrigerator is running, obtain the current status of the damper;

[0070] 12. If the current state is an unfrozen state, then obtain the first vibration intensity of the damper and determine the first vibration intensity as the first intensity threshold.

[0071] 13. If the current state is an icing state, then obtain the icing intensity of the damper;

[0072] 14. When the icing intensity reaches the preset icing intensity, the second vibration intensity of the damper is obtained, and the second vibration intensity is determined as the second intensity threshold.

[0073] Specifically, the unfrozen state refers to the damper rotating normally without any ice adhering to it, while the icing state refers to the damper rotating with obstruction and ice adhering to it. If the damper is in the unfrozen state, the vibration intensity of the damper is a first vibration intensity. This first vibration intensity is acquired as a first intensity threshold and stored in the memory. When the refrigerator runs again, the vibration sensor acquires the operating vibration intensity of the damper and compares it with the pre-stored first intensity threshold. If the operating vibration intensity of the damper exceeds the first vibration intensity, an icing fault has occurred. Since the icing fault may be a first icing fault or a second icing fault, further judgment is needed based on the icing state of the damper. If the damper is in an icing state, it is determined whether the icing intensity has reached the preset icing intensity. The preset icing intensity is the critical icing intensity at which the damper transitions from the first icing fault to the second icing fault. At this time, the vibration intensity of the damper is the second vibration intensity. The second vibration intensity at this time is obtained as the second intensity threshold and stored in the memory. When the refrigerator runs again, the vibration sensor obtains the operating vibration intensity of the damper and compares it with the pre-stored second intensity threshold. If the operating vibration intensity of the damper exceeds the second vibration intensity, the damper experiences a second icing fault. If the operating vibration intensity of the damper exceeds the first vibration intensity but does not exceed the second vibration intensity, the damper experiences a first icing fault.

[0074] For example, please refer to Figure 5 , Figure 5 This is a schematic diagram of the fifth step in the damper fault feedback method provided in this embodiment. When the refrigerator is running, obtaining the current state of the damper includes:

[0075] 111. When the refrigerator is running, obtain the rate at which the refrigeration temperature decreases during operation;

[0076] 112. If the descent rate is greater than or equal to the first descent rate, the damper is in an unfrozen state;

[0077] 113. If the descent rate is less than the first descent rate, the damper is in an icing state.

[0078] Specifically, after a preset duration of the cooling cycle, the first rate of temperature decrease within that preset duration can be obtained. The preset duration can be a relatively long time after the cooling cycle begins; the longer the cooling time, the greater the probability of a malfunction in the damper area. The operating rate of temperature decrease is derived from the preset duration and the operating temperature decrease. The refrigerator can be equipped with one or more temperature sensors to detect the cooling temperature. The cooling temperature can be the temperature of a target area in the cooling compartment or the average temperature of multiple local areas within the cooling compartment. In some embodiments, multiple temperature sensors can be installed inside the refrigerator to obtain the local temperatures of multiple areas within the cooling compartment. The average temperature inside the cooling compartment is used as the compartment temperature. Every preset duration, the average temperature inside the cooling compartment is re-obtained to obtain the operating temperature decrease. The operating rate of temperature decrease is determined based on this operating temperature decrease. It is understood that when cooling begins, the damper opens, and a cooling cycle occurs between the cooling compartment and the freezer compartment. When the rate of temperature decrease decreases and the cooling temperature becomes too high, it indicates that the damper has iced up, preventing it from opening properly and thus hindering cooling of the cooling compartment. The first rate of temperature decrease is the rate of temperature decrease within a preset time under normal refrigerator operation. Assuming the first rate of temperature decrease within the preset time under normal refrigerator operation is 5°C, when the operating rate of temperature decrease within the preset time is 5°C, the operating rate of temperature decrease equals the first rate of temperature decrease, and the damper is in an unfrozen state. When the operating rate of temperature decrease within the preset time is 3°C, the operating rate of temperature decrease is less than the first rate of temperature decrease, and the damper is in an icing state. In some embodiments, if the operating rate of temperature decrease is less than the first rate of temperature decrease, it may be due to temperature rise caused by abnormal events such as frequent door opening or refrigerator power failure. In this case, it is necessary to rule out the possibility that abnormal events caused the operating rate of temperature decrease to be less than the first rate of temperature decrease.

[0079] For example, please refer to Figure 6 , Figure 6 This is a schematic diagram of the sixth step in the damper fault feedback method provided in this embodiment. If the descent rate is less than the first descent rate, and the damper is in an icing state, the process includes:

[0080] 1131. Determine whether the descent rate has reached the second descent rate;

[0081] 1132. When the operating descent rate reaches the second descent rate, the current damper icing intensity is obtained, and the current damper icing intensity is confirmed to be the preset icing intensity.

[0082] Specifically, assuming the refrigerator is operating normally, the first rate of temperature drop within a preset time is 5°C. When the rate of temperature drop is less than 5°C, the refrigerator may be experiencing a first icing failure, i.e., a partial icing state, or a second icing failure, i.e., a complete icing state. Therefore, further judgment is needed based on the icing temperature. Let the second rate of temperature decrease within a preset time be 2°C. When the refrigerator is running, if the operating rate of temperature decrease within the preset time is 3°C, the operating rate of temperature decrease has not reached the second rate of temperature decrease, and the damper is still in the first icing state. When the operating rate of temperature decrease within the preset time is 2°C, the operating rate of temperature decrease reaches the second rate of temperature decrease. At this time, the amount of ice on the damper increases, reaching the second icing state. At this time, the icing intensity of the damper is obtained, and the icing intensity is confirmed to be the preset icing intensity. The icing intensity can be the amount of ice on the damper, such as the icing area, thickness, and remaining area of ​​the air duct, as mentioned above. It can also be the icing rate of the damper, the ice melting rate, etc. It can be understood that the faster the icing rate or the smaller the ice melting rate, the greater the icing intensity of the damper.

[0083] For example, please refer to Figure 7 , Figure 7 This is a schematic diagram of the seventh step of the damper fault feedback method provided in this embodiment. After confirming that the damper fault is a first icing fault, the process includes:

[0084] 2011. Perform the damper reset action and obtain the third vibration intensity of the damper;

[0085] 2012. When the intensity of the third vibration is not greater than the first intensity threshold, it is determined that the first icing fault of the damper has been eliminated;

[0086] After confirming that the damper malfunction is a second type of icing malfunction, the following steps are included:

[0087] 2021. Heating the damper to obtain the fourth vibration intensity of the damper;

[0088] 2022. When the intensity of the fourth vibration is not greater than the second intensity threshold, it is determined that the second icing fault of the damper has been eliminated.

[0089] Specifically, when the damper icing fault is relatively minor, the fault can be eliminated by performing a damper reset. Since the damper lacks a position signal detection device, its actual position cannot be determined once a fault occurs. Therefore, performing a damper reset as a corrective procedure ensures the damper is in a controllable position and de-icing occurs during the reset process. During the reset, a vibration sensor continuously acquires the third vibration intensity of the damper. If the third vibration intensity determines that the first icing fault has been eliminated, the reset process stops. If the third vibration intensity exceeds the first intensity threshold, the first icing fault has not been eliminated, and the reset process continues.

[0090] Specifically, the damper is heated by damper heating wires arranged around its perimeter. When the damper is heavily iced, the heating wires heat up. In some embodiments, to reduce power consumption, the power of the heating wires can be set to a lower power; in other embodiments, when the icing problem is severe, the power can be set to a higher power. During the heating process, the damper's fourth vibration intensity is continuously measured. If the fourth vibration intensity is not greater than the second intensity threshold but greater than the first intensity threshold, it is determined that the second icing problem has been eliminated, but the first icing problem remains. If the fourth vibration intensity is greater than the second intensity threshold, the second icing problem remains, and the heating wires continue to operate. Heating continues until the fourth vibration intensity is no greater than the first intensity threshold, at which point the first icing problem is determined to be eliminated, and the heating wires stop operating. If the fourth vibration intensity is greater than the first intensity threshold, the first icing problem remains, and the heating wires continue to operate.

[0091] Please see Figure 8 , Figure 8 This is a schematic diagram of the damper fault detection device provided in this application. This application also provides a damper fault detection device 100, comprising:

[0092] 1001. Detection module, used to acquire the vibration intensity of the damper during refrigerator operation;

[0093] 1002. Determine module, used to determine whether the vibration intensity is greater than the first intensity threshold. If the operating vibration intensity is greater than the first intensity threshold, the damper will have an icing fault. If the operating vibration intensity is not greater than the first intensity threshold, the damper will not have an icing fault.

[0094] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the damper fault feedback method as described above.

[0095] Please see Figure 9 , Figure 9This is a schematic diagram of a refrigerator provided in this embodiment. This application also provides a refrigerator 200, which includes a processor 2001 and a memory 2002. The memory 2002 stores a computer program, and the processor 2001 executes the aforementioned damper fault feedback method by calling the computer program. Exemplarily, the refrigerator 200 includes a cabinet, which includes a freezer compartment 211, a refrigerator compartment 212, and an air duct. The freezer compartment 211 and the refrigerator compartment 212 are spaced apart. The air duct includes a refrigerator air duct and a freezer air duct connected to each other. The refrigerator air duct connects to the refrigerator compartment 212, and the freezer air duct connects to the freezer compartment 211. The connection point of the refrigerator air duct and the freezer air duct forms an air duct opening. The refrigerator also includes a damper, which can be disposed at the air duct opening to control the connection and isolation of the refrigerator air duct and the freezer air duct. When the damper is open, the refrigerator air duct and the freezer air duct are connected; when the damper is closed, the refrigerator air duct and the freezer air duct are isolated. A vibration sensor is also installed at the bottom of the damper to obtain the vibration intensity of the damper.

[0096] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0097] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0098] The above provides a detailed description of the damper fault detection method, apparatus, computer-readable storage medium, and refrigerator provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for detecting damper malfunctions, applied to a refrigerator, the refrigerator including a refrigerator compartment, the refrigerator compartment being provided with a damper, characterized in that, The method includes: When the refrigerator is operating in cooling mode, the vibration intensity of the damper is obtained, including: obtaining the first temperature of the refrigerator compartment; when the first temperature of the refrigerator compartment reaches the refrigerator start-up point, obtaining the damper opening time; obtaining the second temperature of the refrigerator compartment; when the second temperature of the refrigerator compartment reaches the refrigerator stop-up point, obtaining the damper closing time, and obtaining the difference between the damper opening time and the damper closing time; obtaining the number of vibrations of the damper within the difference, and determining the operating vibration intensity based on the number of vibrations; If the intensity of the operating vibration is greater than the first intensity threshold, it is determined that the damper has icing failure. If the vibration intensity is not greater than the first intensity threshold, it is determined that the damper has not experienced an icing failure.

2. The damper fault detection method according to claim 1, characterized in that, If the operating vibration intensity is greater than the first intensity threshold, then after determining that the damper has icing fault, the following steps are taken: If the operating vibration intensity is greater than the first intensity threshold and less than the second intensity threshold, the damper fault is confirmed as the first icing fault. If the operating vibration intensity is greater than or equal to the second intensity threshold, the damper fault is confirmed as a second icing fault, and the amount of icing in the second icing fault is greater than the amount of icing in the first icing fault.

3. The damper fault detection method according to claim 2, characterized in that, If the operating vibration intensity is greater than a first intensity threshold and less than a second intensity threshold, before confirming the damper malfunction as a first icing malfunction, the following is included: When the refrigerator is cooling, obtain the current status of the damper; If the current state is an unfrozen state, then the first vibration intensity of the damper is obtained, and the first vibration intensity is determined to be the first intensity threshold. If the current state is an icing state, then obtain the icing intensity of the damper; When the icing intensity reaches the preset icing intensity, the second vibration intensity of the damper is obtained, and the second vibration intensity is determined as the second intensity threshold.

4. The damper fault detection method according to claim 3, characterized in that, When the refrigerator is operating in cooling mode, the current status of the damper is obtained, including: When the refrigerator is cooling, the rate at which the refrigeration temperature decreases during operation is obtained; If the descent rate is greater than or equal to the first descent rate, the damper is in an unfrozen state. If the descent rate is less than the first descent rate, the damper is in an icing state.

5. The damper fault detection method according to claim 4, characterized in that, If the descent rate is less than the first descent rate, then after the damper becomes icy, the following applies: Determine whether the rate of decrease in operation has reached the second rate of decrease; When the descent rate reaches the second descent rate, the current damper icing intensity is obtained and confirmed to be the preset icing intensity.

6. The damper fault detection method according to claim 2, characterized in that, After confirming that the damper malfunction is the first icing malfunction, the following steps are included: Perform the damper reset action and obtain the third vibration intensity of the damper; When the intensity of the third vibration is not greater than the first intensity threshold, it is determined that the first icing fault of the damper has been eliminated. After confirming that the damper malfunction is a second type of icing malfunction, the following steps are included: Heating the damper to obtain the fourth vibration intensity of the damper; When the intensity of the fourth vibration is not greater than the second intensity threshold, it is determined that the second icing fault of the damper has been eliminated.

7. A damper fault detection device, characterized in that, include: The detection module is used to acquire the vibration intensity of the damper during refrigerator cooling operation, including: acquiring a first temperature of the refrigerator compartment; acquiring the damper opening time when the first temperature of the refrigerator compartment reaches the refrigerator start-up point; acquiring a second temperature of the refrigerator compartment; acquiring the damper closing time when the second temperature of the refrigerator compartment reaches the refrigerator stop-down point; and acquiring the difference between the damper opening time and the damper closing time; acquiring the number of vibrations of the damper within the difference; and determining the operating vibration intensity based on the number of vibrations. The determination module is used to determine whether the vibration intensity is greater than the first intensity threshold. If the operating vibration intensity is greater than the first intensity threshold, the damper has an icing fault. If the operating vibration intensity is not greater than the first intensity threshold, the damper has not an icing fault.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the damper fault detection method as described in any one of claims 1 to 6.

9. A refrigerator, comprising a processor and a memory, wherein the memory stores a computer program, characterized in that, The processor executes the damper fault detection method as described in any one of claims 1 to 6 by invoking the computer program.

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