Air fryer fan failure detection method, device and air fryer

Abstract

This application relates to a method, apparatus, and air fryer for detecting fan malfunctions. The method includes: acquiring the internal temperature value detected by a temperature sensing element in real time; when the internal temperature value first exceeds a temperature threshold, performing a forced shutdown operation on the heating element of the air fryer and entering a detection cycle; the temperature threshold is a temperature value greater than a set temperature value of the air fryer; when the internal temperature value exceeds the temperature threshold, acquiring the temperature rise value inside the air fryer during the detection cycle through the temperature sensing element; when the temperature rise value exceeds a preset temperature rise threshold, determining that the air fryer fan is malfunctioning. This method can utilize the air fryer's existing temperature sensing element to accurately monitor the temperature and temperature changes inside the air fryer in real time, and, combined with the temperature threshold and temperature rise threshold, accurately determine the malfunction status of the air fryer fan, improving the detection efficiency of air fryer fan malfunctions.

Description

Technical Field

[0001] This application relates to the field of computer technology, and in particular to a method, apparatus, air fryer, storage medium, and computer program product for detecting fan failure in an air fryer. Background Technology

[0002] An air fryer uses hot air instead of hot oil to heat food, achieving the same effect as frying. The fan in an air fryer is a crucial component, and its proper functioning significantly impacts the overall operation of the air fryer.

[0003] Traditional technologies mainly use current transformers (AC fans), Hall effect sensors, wind pressure switches, and infrared photodiodes to monitor the operation of the air fryer's fan. However, traditional technologies require adding additional detection modules to the original structure of the air fryer, increasing manufacturing costs. Summary of the Invention

[0004] One technical problem solved by the present invention is to provide a method, apparatus, air fryer, computer-readable storage medium and computer program product for detecting fan failures in air fryers, which can effectively detect fan failures in air fryers while reducing manufacturing costs.

[0005] The above-mentioned technical problems are solved by the following technical solutions:

[0006] A method for detecting fan malfunctions in an air fryer, comprising:

[0007] Real-time acquisition of the chamber temperature value detected by the temperature sensing element;

[0008] If the temperature inside the air fryer exceeds a temperature threshold for the first time, the heating element of the air fryer will be forcibly shut down and the system will enter a detection cycle. The temperature threshold is a temperature value that is greater than the set temperature value of the air fryer.

[0009] When the temperature inside the chamber is greater than the temperature threshold, the temperature rise inside the air fryer chamber during the detection period is obtained by the temperature measuring element.

[0010] If the temperature rise exceeds a preset temperature rise threshold, the air fryer's fan is determined to be faulty.

[0011] The air fryer fan fault detection method of the present invention has the following advantages compared with the prior art: By acquiring the internal temperature value detected by the temperature sensing element in real time, the temperature inside the air fryer can be monitored in real time, providing timely and reliable data for subsequent fault detection; when the internal temperature value first exceeds a temperature threshold, a forced shutdown of the air fryer's heating element is executed, and a detection cycle begins, ensuring that the heating element stops working when the temperature is abnormal, reducing the impact of the heating element on fault detection; the temperature threshold is a temperature value greater than the air fryer's set temperature value; when the internal temperature value exceeds the temperature threshold, the temperature rise value inside the air fryer's casing during the detection cycle is acquired by the temperature sensing element, thereby determining the detection cycle based on the detection cycle. The temperature rise value inside the air fryer provides data support for subsequent fault detection. When the temperature rise value exceeds the preset temperature rise threshold, it is determined that the air fryer fan is faulty. The system can monitor the temperature value inside the air fryer chamber in real time. When the temperature value inside the air fryer chamber exceeds the temperature threshold related to the set temperature value, and the heating element of the air fryer is turned off, the system can accurately determine the fault status of the air fryer fan based on the temperature rise value inside the air fryer chamber during the detection period, combined with the preset temperature rise threshold. This allows for real-time and accurate monitoring of the temperature and temperature changes inside the air fryer chamber using the air fryer's original temperature sensing element, and accurate determination of the air fryer fan fault status by combining the temperature threshold and the temperature rise threshold, thus reducing manufacturing costs without adding an additional detection module.

[0012] In one embodiment, the temperature threshold is a preset multiple of the set temperature value.

[0013] In one embodiment, the method further includes:

[0014] The control timer starts counting from the initial moment of the detection cycle;

[0015] The step of obtaining the temperature rise value inside the air fryer's casing during the detection period through the temperature measuring element includes:

[0016] The temperature sensor detects the current internal temperature of the air fryer and obtains the timing time of the timer.

[0017] If the current internal temperature is greater than the initial internal temperature of the current detection cycle, and the timing time is not greater than the detection cycle, the difference between the current internal temperature and the initial internal temperature is determined to obtain the temperature rise value.

[0018] In one embodiment, the method further includes:

[0019] If the current chamber temperature is less than or equal to the initial chamber temperature of the current detection cycle, a new detection cycle is initiated. The current chamber temperature is then set as the initial chamber temperature of the new detection cycle, and the timer is reset to zero to restart the timing process.

[0020] In one embodiment, the method further includes:

[0021] If the current internal temperature is greater than the initial internal temperature of the current detection cycle and the timing time is greater than the detection cycle, a new detection cycle is initiated. The current internal temperature is then set as the initial internal temperature of the new detection cycle, and the timing time is reset to zero, restarting the timing process.

[0022] In one embodiment, after performing the operation of forcibly shutting off the heating element of the air fryer, the method further includes:

[0023] The internal temperature value when the heating element of the air fryer is forcibly shut down is determined as the initial internal temperature of the first detection cycle.

[0024] In one embodiment, the method further includes:

[0025] If the temperature inside the chamber is less than or equal to the temperature threshold, return to the step of acquiring the temperature inside the chamber detected by the temperature measuring element in real time.

[0026] In one embodiment, the method further includes:

[0027] If the temperature rise is less than or equal to the preset temperature rise threshold, return to the step of obtaining the chamber temperature value detected by the temperature measuring element in real time.

[0028] An air fryer fan malfunction detection device includes:

[0029] The temperature acquisition module is used to acquire the temperature value inside the chamber detected by the temperature sensing element in real time.

[0030] The forced shutdown module is used to perform a forced shutdown of the heating element of the air fryer and enter a detection cycle when the temperature value inside the chamber first exceeds a temperature threshold; the temperature threshold is a temperature value that is greater than the set temperature value of the air fryer.

[0031] The temperature rise acquisition module is used to acquire the temperature rise value inside the air fryer during the detection cycle through the temperature measuring element when the temperature value inside the chamber is greater than the temperature threshold.

[0032] The fault determination module is used to determine that the fan of the air fryer is faulty when the temperature rise value is greater than a preset temperature rise threshold.

[0033] An air fryer. The air fryer includes:

[0034] Air fryer body;

[0035] The temperature sensing element is located inside the housing of the air fryer body;

[0036] A controller, connected to the temperature sensing element, is used to implement the steps of the above method.

[0037] A computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the method described above. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies 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.

[0039] Figure 1 This is a flowchart illustrating a fan failure detection method for an air fryer in one embodiment.

[0040] Figure 2 This is a schematic diagram of a process for obtaining a temperature rise value in one embodiment;

[0041] Figure 3 This is a schematic diagram of a process for monitoring temperature change trends in one embodiment;

[0042] Figure 4 This is a schematic diagram of a process for detecting a fan malfunction in an air fryer, as shown in one embodiment.

[0043] Figure 5 This is a structural block diagram of a fan fault detection device for an air fryer in one embodiment;

[0044] Figure 6 This is a schematic diagram of the structure of a controller in one embodiment;

[0045] Figure 7 This is a schematic diagram of the internal structure of an air fryer in one embodiment.

[0046] Explanation of icon numbers:

[0047] 20. Air fryer body; 22. Heating element; 24. Frying basket; 40. Temperature measuring element; 60. Controller; 80. Fan. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] In one exemplary embodiment, such as Figure 1 As shown, a method for detecting fan malfunctions in an air fryer is provided, and the method is illustrated using an air fryer as an example. In this embodiment, the method includes the following steps:

[0050] Step S102: Real-time acquisition of the chamber temperature value detected by the temperature sensing element.

[0051] Among them, temperature measuring element can refer to the detection element of temperature measuring instrument. In practical applications, temperature measuring element can include components used to acquire temperature, such as temperature sensor and temperature probe.

[0052] The internal temperature value refers to the temperature data that characterizes the internal environment of the air fryer.

[0053] As an example, an air fryer obtains real-time temperature data inside the air fryer body through a temperature sensing element located inside the air fryer body.

[0054] Step S104: If the temperature inside the fryer exceeds the temperature threshold for the first time, perform a forced shutdown of the heating element and enter the detection cycle.

[0055] The temperature threshold can refer to the data used to determine whether the temperature inside the air fryer exceeds the preset temperature condition. In practical applications, the temperature threshold can include a temperature value that is greater than the set temperature value of the air fryer.

[0056] Among them, the heating element can refer to the component that converts electrical energy into heat energy through a resistive element. In practical applications, the heating element can include a heating tube.

[0057] The detection period can refer to a pre-set time period with a specific duration. In practical applications, the detection period can be used to obtain the time period on which temperature changes are based. Specifically, the detection period can include 30 seconds.

[0058] As an example, when the internal temperature of the air fryer first exceeds a temperature threshold related to the set temperature, the air fryer will perform a forced shutdown of the heating element and enter a detection cycle. This ensures that the heating element is off when the temperature change of the air fryer is determined, thus preventing the operation of the heating element from affecting the fault detection of the air fryer. If the fan is working normally, it will continue to work, and the internal temperature of the air fryer will continue to decrease under the action of the fan.

[0059] Step S106: When the temperature inside the chamber is greater than the temperature threshold, the temperature rise inside the air fryer chamber during the detection period is obtained by a temperature measuring element.

[0060] The interior of an air fryer can refer to the space within the air fryer used to hold food and / or the various components of the air fryer.

[0061] The temperature rise value can refer to the change in temperature inside the air fryer chamber within a specific time period (such as within a testing period). In practical applications, when the temperature inside the air fryer chamber decreases within a specific time period, the temperature rise value can be negative. For example, if the internal temperature exceeds the temperature threshold for the first time, the heating element may be turned off, but the fan may still be running and rotating to dissipate heat; in this case, the temperature rise value will be negative.

[0062] As an example, when the internal temperature exceeds a temperature threshold, the air fryer uses a temperature sensing element to obtain the temperature rise value inside the air fryer during the detection period, and compares the temperature rise value inside the air fryer during the detection period with the preset temperature rise threshold to determine the malfunction status of the air fryer's fan.

[0063] Step S108: If the temperature rise exceeds the preset temperature rise threshold, it is determined that the air fryer's fan is faulty.

[0064] The preset temperature rise threshold can refer to the data used to determine whether the temperature change inside the air fryer body during the detection period exceeds the preset requirements. In practical applications, the preset temperature rise threshold can include 1℃.

[0065] The fan can refer to the device in an air fryer used to generate airflow.

[0066] As an example, if the temperature rise exceeds the preset temperature rise threshold, it indicates that the heating element of the air fryer has been turned off. However, due to the fan being in a faulty state, the heat inside the chamber will rise and directly affect the temperature probe, causing the temperature to continue to rise. Thus, the air fryer determines that the air fryer's fan is faulty. Specifically, the air fryer can also alarm the user in the form of sound to remind the user that the air fryer's fan is faulty.

[0067] In the aforementioned air fryer fan fault detection method, the internal temperature value detected by the temperature sensing element is acquired in real time, thereby monitoring the temperature inside the air fryer in real time and providing timely and reliable data for subsequent fault detection. When the internal temperature value first exceeds a temperature threshold, a forced shutdown of the air fryer's heating element is executed, and a detection cycle begins. This ensures that the heating element stops working when the temperature is abnormal, reducing the impact of the heating element on fault detection. The temperature threshold is a temperature value greater than the air fryer's set temperature value. When the internal temperature value exceeds the temperature threshold, the temperature rise value inside the air fryer's casing during the detection cycle is acquired by the temperature sensing element. Based on the detection cycle, the temperature rise value within the detection cycle is determined. Subsequent fault detection provides data support; when the temperature rise exceeds a preset temperature rise threshold, the air fryer fan is determined to be faulty. It can monitor the temperature inside the air fryer chamber in real time, and when the temperature inside the air fryer chamber exceeds a temperature threshold related to the set temperature, and the heating element of the air fryer is turned off, it accurately determines the air fryer fan malfunction based on the temperature rise within the air fryer chamber during the detection period, combined with the preset temperature rise threshold. This achieves real-time and accurate monitoring of the temperature and temperature changes inside the air fryer chamber using the air fryer's original temperature sensing element, and accurately determines the air fryer fan malfunction status by combining the temperature threshold and temperature rise threshold, thus reducing manufacturing costs without adding additional detection modules.

[0068] In one exemplary embodiment, the temperature threshold is a preset multiple of the set temperature value.

[0069] The set temperature value can refer to a temperature value set by the air fryer element based on the user's preset temperature or a real-time temperature setting. In practical applications, the set temperature value can be used as a reference value to indicate that the temperature inside the air fryer is within a normal and controllable range. In practical applications, the set temperature value can include 100℃ and 200℃. For example, if the user presets the temperature to 200℃, the set temperature value can be 200℃ in the air fryer's heating state; in the air fryer's heat preservation state, the set temperature value can be 100℃. The heat preservation state is the state in which the air fryer is after it has been heated to the set temperature value. At this time, the heat generated by the heating element at the set temperature of 100℃ can maintain the temperature inside the air fryer at 200℃.

[0070] The preset multiple can refer to the data that represents the size relationship between any two data points. In practical applications, the preset multiple can include 1.15 times.

[0071] As an example, an air fryer can obtain the set temperature value corresponding to the current moment and set the temperature threshold to 1.15 times the set temperature value corresponding to the current moment, thereby using the temperature threshold to determine whether the internal temperature of the air fryer is controllable.

[0072] In this embodiment, by setting the temperature threshold to a preset multiple of the set temperature value, the temperature threshold related to the set temperature value can be used to accurately determine whether the temperature inside the air fryer exceeds the preset conditions, thereby determining whether the internal temperature of the air fryer is controllable and improving the accuracy of abnormal temperature detection inside the air fryer.

[0073] In some embodiments, the method further includes: controlling a timer to start timing from the initial moment of the detection cycle; obtaining the temperature rise value inside the air fryer's casing during the detection cycle through a temperature sensing element, including: detecting the current internal temperature value inside the air fryer's casing through the temperature sensing element and obtaining the timing time of the timer; and determining the difference between the current internal temperature value and the initial internal temperature when the current internal temperature value is greater than the initial internal temperature of the current detection cycle and the timing time is not greater than the detection cycle, thereby obtaining the temperature rise value.

[0074] Among them, a timer can refer to a device used to measure or record time.

[0075] The initial moment of the detection cycle can refer to the moment when the detection cycle begins.

[0076] The current internal temperature value can refer to the data representing the temperature inside the air fryer after entering the testing cycle.

[0077] Among them, timing time can refer to the time information measured or recorded by the timer.

[0078] The initial temperature inside the chamber during the current testing cycle can refer to the data used to calculate the temperature change value during the current testing cycle. In practical applications, the initial temperature inside the chamber during the current testing cycle can include the temperature inside the air fryer chamber at the initial moment of the current testing cycle.

[0079] As an example, such as Figure 2 As shown, a flowchart illustrating the process of obtaining a temperature rise value is provided. Step S202 of the air fryer control a timer to start timing from the initial moment of the detection cycle. Obtaining the temperature rise value inside the air fryer's casing within the detection cycle through a temperature sensing element may include: Step S204 of the air fryer detecting the current internal temperature value of the air fryer's casing using the temperature sensing element; Step S206 of the air fryer obtaining the timing time of the timer; and Step S208 of the air fryer determining the temperature rise value based on the current internal temperature value, the initial internal temperature of the current cycle, the timing time, and the detection cycle. Specifically, if the current internal temperature value is greater than the initial internal temperature of the current detection cycle, and the timing time is not greater than the detection cycle, the air fryer calculates the difference between the current internal temperature value and the initial internal temperature to obtain the temperature rise value.

[0080] In this embodiment, the temperature rise value inside the air fryer's casing during the detection period is obtained through a temperature sensing element. This includes: detecting the current internal temperature value of the air fryer's casing through the temperature sensing element and obtaining the timing time of the timer; if the current internal temperature value is greater than the initial internal temperature of the current detection period and the timing time is not greater than the detection period, determining the difference between the current internal temperature value and the initial internal temperature to obtain the temperature rise value. This method can accurately determine the temperature rise value by using the timing time corresponding to the timer as the time base and combining the difference between the current internal temperature value and the initial internal temperature corresponding to each timing time within the detection period, thereby improving the accuracy of the temperature rise value.

[0081] In some embodiments, the method further includes: if the current chamber temperature is less than or equal to the initial chamber temperature of the current detection cycle, entering a new detection cycle, determining the current chamber temperature as the initial chamber temperature of the new detection cycle, resetting the timer to zero, and restarting the timing.

[0082] As an example, such as Figure 3As shown, a flowchart for monitoring temperature change trends is provided. When the current internal temperature is less than or equal to the initial internal temperature of the current detection cycle, the air fryer determines that the internal temperature of the air fryer is showing a downward trend, and thus determines that the air fryer fan is operating normally and there is no fault. Therefore, a new detection cycle is entered. The air fryer sets the current internal temperature as the initial internal temperature of the new detection cycle and resets the timer to zero, restarting the timing. In other words, the air fryer re-monitors the temperature change trend inside the air fryer.

[0083] In this embodiment, when the current internal temperature is less than or equal to the initial internal temperature of the current detection cycle, a new detection cycle is initiated. The current internal temperature is set as the initial internal temperature of the new detection cycle, and the timer is reset to zero and restarted. This allows for accurate analysis of the internal temperature trend of the air fryer when the internal temperature shows a downward trend. Combined with the internal temperature trend, the operating status of the air fryer fan can be determined, thus improving the detection efficiency of air fryer fan malfunctions.

[0084] In some embodiments, the method further includes: if the current chamber temperature is greater than the initial chamber temperature of the current detection cycle and the timing time is greater than the detection cycle, entering a new detection cycle, determining the current chamber temperature as the initial chamber temperature of the new detection cycle, resetting the timing timer to zero, and restarting the timing.

[0085] As an example, such as Figure 3 As shown, a flowchart for monitoring temperature change trends is provided. When the current internal temperature is greater than the initial internal temperature of the current detection cycle and the timing time is greater than the detection cycle, the air fryer determines that although the internal temperature of the air fryer shows an upward trend, the upward trend is not obvious or the upward trend is under control. Therefore, it is determined that the air fryer fan is operating normally and there is no fault. Thus, a new detection cycle is entered. The air fryer sets the current internal temperature as the initial internal temperature of the new detection cycle and resets the timing time to zero, restarting the timing.

[0086] In this embodiment, when the current internal temperature is greater than the initial internal temperature of the current detection cycle and the timing period is longer than the detection cycle, a new detection cycle is initiated. The current internal temperature is set as the initial internal temperature of the new detection cycle, and the timer is reset to zero and the timing restarts. Since the current internal temperature is greater than the initial internal temperature of the current detection cycle and the timing period is longer than the detection cycle, it indicates that the internal temperature has exceeded the preset temperature threshold after a duration longer than the detection cycle itself. This indicates that the rise in the internal temperature of the air fryer is under control, and a new detection cycle is initiated. This allows for accurate analysis of the internal temperature change trend of the air fryer and, combined with this trend, the operation of the air fryer fan is determined, improving the detection efficiency of air fryer fan malfunctions.

[0087] In some embodiments, after performing an operation to forcibly shut down the heating element of the air fryer, the method further includes: determining the internal temperature value of the air fryer when the heating element is forcibly shut down as the initial internal temperature of the first detection cycle.

[0088] As an example, after performing an operation to forcibly shut down the heating element of the air fryer, the air fryer determines the internal temperature value at the time of the forced shutdown as the initial internal temperature of the first detection cycle. Then, the air fryer can combine the current internal temperature value and the initial internal temperature of the air fryer body during the detection cycle to accurately analyze the temperature change trend inside the air fryer body, and thus accurately determine the operation status of the air fryer fan.

[0089] In this embodiment, after performing an operation to forcibly shut down the heating element of the air fryer, the internal temperature value at the time of the forced shutdown of the heating element is determined as the initial internal temperature of the air fryer in the first detection cycle. Based on the initial internal temperature, combined with the current internal temperature value of the air fryer, the trend of temperature change inside the air fryer can be analyzed, thereby accurately judging the operation of the air fryer fan and improving the detection accuracy of air fryer fan failure.

[0090] In some embodiments, the above method further includes the step of: when the temperature inside the chamber is less than or equal to a temperature threshold, returning to the step of acquiring the temperature inside the chamber detected by the temperature sensing element in real time.

[0091] As an example, if the internal temperature is less than or equal to the temperature threshold, the air fryer determines that the internal temperature of the air fryer body has not exceeded the temperature threshold related to the set temperature value, that is, the internal temperature of the air fryer body is within a controllable range. The air fryer then returns to the step of obtaining the internal temperature value detected by the temperature measuring element in real time, so as to continue to monitor the internal temperature of the air fryer body in real time.

[0092] In this embodiment, by returning to the step of real-time acquisition of the internal temperature value detected by the temperature measuring element when the internal temperature value is less than or equal to the temperature threshold, the step of real-time acquisition of the internal temperature value detected by the temperature measuring element can be performed by combining the relationship between the internal temperature value and the temperature threshold. This enables real-time and accurate monitoring of the internal temperature of the air fryer, improves the accuracy of the internal temperature value of the air fryer, and provides a data basis for subsequent air fryer fan failure analysis.

[0093] In some embodiments, the above method further includes the step of: if the temperature rise is less than or equal to a preset temperature rise threshold, returning to the step of real-time acquisition of the chamber temperature value detected by the temperature measuring element.

[0094] As an example, if the temperature rise is less than or equal to the preset temperature rise threshold, the air fryer determines that the temperature rise has not exceeded the preset temperature rise threshold, that is, the temperature change of the air fryer is controllable. The air fryer then returns to the step of obtaining the temperature value inside the chamber detected by the temperature measuring element in real time, so as to continue to monitor the temperature inside the air fryer chamber in real time.

[0095] In this embodiment, by returning to the step of real-time acquisition of the internal temperature value detected by the temperature measuring element when the temperature rise is less than or equal to a preset temperature rise threshold, the step of real-time acquisition of the internal temperature value detected by the temperature measuring element can be performed by combining the relationship between the temperature rise and the preset temperature rise threshold. This enables real-time and accurate monitoring of the internal temperature of the air fryer, improves the accuracy of the internal temperature value of the air fryer, and provides a data basis for subsequent air fryer fan failure analysis.

[0096] In some embodiments, such as Figure 4 The diagram illustrates a process for detecting air fryer fan malfunctions. The air fryer can obtain the target temperature T of the air fryer in real time. set (Set temperature value), and then the air fryer obtains the internal temperature value (cabinet probe temperature) T detected by the temperature sensing element in real time. nowThe air fryer determines the relationship between the internal temperature and a temperature threshold (e.g., 1.15 times the set temperature). If the internal temperature is less than the threshold, the temperature is within a controllable range and the air fryer's fan is working normally. It then returns to the step of acquiring the internal temperature detected by the temperature sensor in real time. If the internal temperature is greater than the threshold, the temperature is becoming uncontrollable. Upon the first instance of the internal temperature exceeding the threshold, a forced shutdown of the heating element is executed (e.g., if the internal temperature exceeds 115% of the set temperature). A detection cycle then begins, with the timer starting from the initial moment of the detection cycle. Essentially, the air fryer can determine the internal temperature at the moment the heating element is forcibly shut down as the initial internal temperature for the first detection cycle. In other words, during the first detection cycle, the air fryer can determine the internal temperature T at the initial moment of entering that first detection cycle. now Assign a value to the initial chamber temperature T corresponding to the first detection cycle. oldThe air fryer then uses a temperature sensing element to detect the current internal temperature of the air fryer chamber and records the timer's duration. If the current internal temperature is less than or equal to the initial internal temperature of the current detection cycle, it indicates that the internal temperature of the air fryer chamber is decreasing, and a new detection cycle begins. The air fryer sets the current internal temperature as the initial internal temperature of the new detection cycle and resets the timer to zero, restarting the timing process. If the current internal temperature is greater than the initial internal temperature of the current detection cycle, and the timer duration is greater than the detection cycle duration, it indicates that the temperature rise inside the air fryer chamber has been prolonged and the rate of temperature increase is low, and a new detection cycle begins. The air fryer sets the current internal temperature as the initial internal temperature of the new detection cycle and resets the timer to zero, restarting the timing process. If the current internal temperature is greater than the initial internal temperature of the current detection cycle, and the timer duration is less than the detection cycle duration... In this case, the air fryer calculates the difference between the current internal temperature and the initial internal temperature to obtain the temperature rise value. The air fryer can determine the operating status of the air fryer fan based on the temperature rise value and the preset temperature rise threshold. When the heating element of the air fryer is off, the internal heat source is lost. Under the action of the fan, the heat inside the internal chamber will not rise, and the probe temperature will gradually decrease, that is, the probe temperature rise slope k will be less than 0. If the fan has failed at this time, the heat inside the internal chamber will rise and directly act on the temperature probe, and the temperature will continue to rise, that is, the probe temperature rise slope k is greater than or equal to 0. Therefore, the temperature rise threshold can be set very small, or even 1 (to prevent measurement jitter error of the temperature probe). Specifically, if the temperature rise value is greater than the preset temperature rise threshold, the air fryer determines that the air fryer fan is faulty. If the temperature rise value is less than or equal to the preset temperature rise threshold, it returns to the step of obtaining the internal temperature value detected by the temperature measuring element in real time.

[0097] In this embodiment, by analyzing the temperature and temperature changes detected in real time by the original temperature sensing element of the air fryer, it is possible to detect whether the fan is working properly during the operation of the air fryer without adding additional mechanical structures and components, thereby improving the detection efficiency of air fryer fan failure.

[0098] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0099] Based on the same inventive concept, this application also provides an air fryer fan fault detection device for implementing the air fryer fan fault detection method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations of one or more air fryer fan fault detection device embodiments provided below can be found in the limitations of the air fryer fan fault detection method described above, and will not be repeated here.

[0100] In one exemplary embodiment, such as Figure 5 As shown, a fan fault detection device for an air fryer is provided, comprising: a temperature acquisition module 502, a forced shutdown module 504, a temperature rise acquisition module 506, and a fault determination module 508, wherein:

[0101] The temperature acquisition module 502 is used to acquire the temperature value inside the chamber detected by the temperature sensing element in real time.

[0102] The forced shutdown module 504 is used to perform a forced shutdown operation of the heating element of the air fryer and enter a detection cycle when the temperature value inside the chamber first exceeds a temperature threshold; the temperature threshold is a temperature value that is greater than the set temperature value of the air fryer.

[0103] The temperature rise acquisition module 506 is used to acquire the temperature rise value inside the air fryer during the detection cycle through the temperature measuring element when the temperature value inside the chamber is greater than the temperature threshold.

[0104] The fault determination module 508 is used to determine that the fan of the air fryer is faulty when the temperature rise value is greater than a preset temperature rise threshold.

[0105] In one exemplary embodiment, the above-described apparatus further includes a temperature threshold module, which is specifically used to set the temperature threshold to a preset multiple of the set temperature value.

[0106] In an exemplary embodiment, the above-described device further includes a timing module, which is specifically used to control the timer to start timing from the initial moment of the detection period; the step of obtaining the temperature rise value inside the air fryer's casing during the detection period through the temperature measuring element includes: detecting the current internal temperature value inside the air fryer's casing through the temperature measuring element and obtaining the timing time of the timer; when the current internal temperature value is greater than the initial internal temperature of the current detection period and the timing time is not greater than the detection period, determining the difference between the current internal temperature value and the initial internal temperature to obtain the temperature rise value.

[0107] In an exemplary embodiment, the timing module is further configured to, when the current internal temperature value is less than or equal to the initial internal temperature of the current detection cycle, enter a new detection cycle, determine the current internal temperature value as the initial internal temperature of the new detection cycle, reset the timing timer to zero, and restart timing.

[0108] In an exemplary embodiment, the timing module is further configured to, when the current temperature inside the chamber is greater than the initial temperature inside the chamber in the current detection cycle and the timing time is greater than the detection cycle, enter a new detection cycle, determine the current temperature inside the chamber as the initial temperature inside the chamber in the new detection cycle, clear the timing time of the timer to zero, and restart the timing.

[0109] In one exemplary embodiment, the above-described apparatus further includes a temperature determination module, which is specifically configured to determine the internal temperature value of the air fryer when the heating element of the air fryer is forcibly shut down as the initial internal temperature of the first detection cycle after the operation of forcibly shutting down the heating element of the air fryer is performed.

[0110] In one exemplary embodiment, the above-described apparatus further includes a first return module, which is specifically used to return the step of acquiring the temperature value inside the chamber detected by the temperature measuring element in real time when the temperature value inside the chamber is less than or equal to the temperature threshold.

[0111] In one exemplary embodiment, the above-described device further includes a second return module, which is specifically used to return the step of acquiring the chamber temperature value detected by the temperature measuring element in real time when the temperature rise value is less than or equal to the preset temperature rise threshold.

[0112] Each module in the aforementioned air fryer fan fault detection device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of the controller in hardware form or independent of it, or stored in the memory of the controller in software form, so that the processor can call and execute the corresponding operations of each module.

[0113] In one embodiment, a controller is provided, the internal structure of which can be shown in the following diagram: Figure 6 As shown, the controller includes a processor, memory, communication interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The communication interface allows for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When executed by the processor, the computer program implements a method for detecting fan malfunctions in an air fryer. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the controller housing, or an external keyboard, touchpad, or mouse.

[0114] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the controller to which the present application is applied. A specific controller may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0115] In one embodiment, an air fryer is also provided, such as Figure 7 As shown, the air fryer includes:

[0116] Air fryer body 20;

[0117] Temperature sensing element 40 is disposed inside the housing of the air fryer body 20;

[0118] The controller 60 is connected to the temperature sensing element 40 and is used to implement the steps in the above method embodiments.

[0119] In one embodiment, the controller 60 is configured to acquire the internal temperature value detected by the temperature sensing element 40 in real time; the controller 60 is configured to perform a forced shutdown of the heating element 22 of the air fryer and enter a detection cycle when the internal temperature value first exceeds a temperature threshold; the temperature threshold is a temperature value greater than the set temperature value of the air fryer; the controller 60 is configured to acquire the temperature rise value inside the air fryer during the detection cycle through the temperature sensing element 40 when the internal temperature value exceeds the temperature threshold; the controller 60 is configured to determine that the fan of the air fryer is faulty when the temperature rise value exceeds a preset temperature rise threshold.

[0120] In one embodiment, the controller 60 is further configured to set the temperature threshold to a preset multiple of the set temperature value.

[0121] In one embodiment, the controller 60 is further configured to control the timer to start timing from the initial moment of the detection cycle; the step of obtaining the temperature rise value inside the air fryer's casing during the detection cycle through the temperature measuring element 40 includes: detecting the current internal temperature value inside the air fryer's casing through the temperature measuring element 40, and obtaining the timing time of the timer; if the current internal temperature value is greater than the initial internal temperature of the current detection cycle, and the timing time is not greater than the detection cycle, determining the difference between the current internal temperature value and the initial internal temperature, and obtaining the temperature rise value.

[0122] In one embodiment, the controller 60 is further configured to, when the current chamber temperature value is less than or equal to the initial chamber temperature of the current detection cycle, enter a new detection cycle, determine the current chamber temperature value as the initial chamber temperature of the new detection cycle, and reset the timer to zero and restart the timing.

[0123] In one embodiment, the controller 60 is further configured to, when the current internal temperature value is greater than the initial internal temperature of the current detection cycle and the timing time is greater than the detection cycle, enter a new detection cycle, determine the current internal temperature value as the initial internal temperature of the new detection cycle, reset the timing timer to zero, and restart the timing.

[0124] In one embodiment, the controller 60 is further configured to determine the internal temperature value of the air fryer when the heating element 22 of the air fryer is forcibly shut down as the initial internal temperature of the first detection cycle after the operation of forcibly shutting down the heating element 22 of the air fryer is performed.

[0125] In one embodiment, the controller 60 is further configured to return to the step of acquiring the temperature value inside the chamber detected by the real-time temperature sensing element 40 when the temperature value inside the chamber is less than or equal to the temperature threshold.

[0126] In one embodiment, the controller 60 is further configured to return to the step of acquiring the chamber temperature value detected by the real-time temperature sensing element 40 when the temperature rise value is less than or equal to the preset temperature rise threshold.

[0127] In one exemplary embodiment, an air fryer is provided, the internal structure of which can be illustrated as follows: Figure 7 As shown. The air fryer may include an air fryer body 20, a temperature sensing element 40, and a controller 60. The temperature sensing element 40 may be disposed inside the air fryer housing of the air fryer body 20. The controller 60 is used to implement a fan failure detection method for the air fryer. In practical applications, the air fryer may also include a fan 80, a heating element 22, and a frying basket 24. The fan may be disposed at the top of the air fryer housing, the frying basket 24 may be used to hold food, and the heating element 22 may be disposed in the space inside the air fryer housing between the fan 80 and the frying basket 24.

[0128] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0129] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0130] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0131] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0132] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0133] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method of fan fault detection for an air fryer, the method comprising: The method includes: Real-time acquisition of the chamber temperature value detected by the temperature sensing element; If the temperature inside the air fryer exceeds a temperature threshold for the first time, the heating element of the air fryer will be forcibly shut down and the system will enter a detection cycle. The temperature threshold is a temperature value that is greater than the set temperature value of the air fryer. The control timer starts counting from the initial moment of the detection cycle; When the temperature inside the chamber is greater than the temperature threshold, the temperature sensing element detects the current temperature inside the air fryer and obtains the timing time of the timer. If the current temperature inside the chamber is greater than the initial temperature inside the chamber in the current detection cycle, and the timing time is not greater than the detection cycle, the difference between the current temperature inside the chamber and the initial temperature inside the chamber is determined to obtain the temperature rise value. If the temperature rise exceeds a preset temperature rise threshold, the air fryer's fan is determined to be faulty. The method further includes: If the current chamber temperature is less than or equal to the initial chamber temperature of the current detection cycle, a new detection cycle is initiated. The current chamber temperature is then set as the initial chamber temperature of the new detection cycle, and the timer is reset to zero to restart the timing process. If the current internal temperature is greater than the initial internal temperature of the current detection cycle and the timing time is greater than the detection cycle, a new detection cycle is initiated. The current internal temperature is then set as the initial internal temperature of the new detection cycle, and the timing time is reset to zero, restarting the timing process.

2. The method according to claim 1, characterized in that, The temperature threshold is a preset multiple of the set temperature value.

3. The method according to claim 1, characterized in that, After performing the operation of forcibly shutting off the heating element of the air fryer, the method further includes: The internal temperature value when the heating element of the air fryer is forcibly shut down is determined as the initial internal temperature of the first detection cycle.

4. The method according to claim 1, characterized in that, The method further includes: If the temperature inside the chamber is less than or equal to the temperature threshold, return to the step of acquiring the temperature inside the chamber detected by the temperature measuring element in real time.

5. The method according to claim 1, characterized in that, The method further includes: If the temperature rise is less than or equal to the preset temperature rise threshold, return to the step of obtaining the chamber temperature value detected by the temperature measuring element in real time.

6. The method according to any one of claims 1 to 5, characterized in that, The set temperature value includes a temperature value set according to a temperature preset by the user or a temperature value set according to a temperature set by the user in real time.

7. A fan failure detection device for an air fryer, characterized in that, The device includes: The temperature acquisition module is used to acquire the temperature value inside the chamber detected by the temperature sensing element in real time. The forced shutdown module is used to perform a forced shutdown of the heating element of the air fryer and enter a detection cycle when the temperature value inside the chamber first exceeds a temperature threshold; the temperature threshold is a temperature value that is greater than the set temperature value of the air fryer. A timing module is used to control the timer to start timing from the initial moment of the detection period; The temperature rise acquisition module is used to detect the current internal temperature of the air fryer through the temperature sensing element and acquire the timing time of the timer when the internal temperature is greater than the temperature threshold; and to determine the difference between the current internal temperature and the initial internal temperature when the current internal temperature is greater than the initial internal temperature of the current detection period and the timing time is not greater than the detection period, thereby obtaining the temperature rise value. The fault determination module is used to determine that the fan of the air fryer is faulty when the temperature rise value is greater than a preset temperature rise threshold. The timing module is further configured to: enter a new detection cycle when the current internal temperature is less than or equal to the initial internal temperature of the current detection cycle; determine the current internal temperature as the initial internal temperature of the new detection cycle; reset the timer to zero and restart timing; and enter a new detection cycle when the current internal temperature is greater than the initial internal temperature of the current detection cycle and the timing time is greater than the detection cycle; determine the current internal temperature as the initial internal temperature of the new detection cycle; reset the timer to zero and restart timing.

8. An air fryer, characterized in that, The air fryer includes: Air fryer body (20); Temperature sensing element (40) is disposed inside the housing of the air fryer body (20); A controller (60) is connected to the temperature sensing element (40), and the controller (60) is used to implement the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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