Control method and device of cooking equipment, cooking equipment and storage medium

Abstract

The invention discloses a control method and device of cooking equipment, the cooking equipment and a storage medium. The cooking equipment comprises a hot air assembly, the hot air assembly comprises a fan and a heating device, and the method comprises the steps that in response to a cooking starting instruction, the cooking equipment is controlled to start cooking; in the cooking process of the cooking equipment, working parameters of the hot air assembly are obtained; the working parameters comprise at least one of the following items: the working current of the fan, the working state of a switch module included in a driving circuit of the fan, the rotating speed of the fan and the temperature rise rate of the heating device; and when it is determined that the hot air assembly is in the abnormal state based on the working parameters, the heating device is controlled to stop heating. According to the technical scheme, when it is detected that the hot air assembly works in the abnormal state, the heating device is controlled to stop heating, the situation that the cooking equipment is burnt out due to abnormal work of the hot air assembly is avoided, and the use safety of the cooking equipment is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and particularly relates to a control method, device, cooking device and storage medium for a cooking device. Background Art

[0002] An air fryer is a cooking appliance made using high-speed air circulation technology. It generates hot air by heating a heat pipe inside the machine at a high temperature, and then uses a fan to blow the hot air into the pot to heat food, enabling the hot air to circulate in a closed space, thereby achieving the cooking of food.

[0003] During the use of an air fryer, if the fan malfunctions, for example, the rotational speed of the fan is too low or even stops rotating, while the heating tube is still working, it will cause the temperature inside the air fryer cavity to rise rapidly, resulting in the burning out of the fuse of the whole machine and even posing a risk of melting and catching fire. Summary of the Invention

[0004] The present application provides a control method, device, cooking device and storage medium for a cooking device.

[0005] In a first aspect, an embodiment of the present application provides a control method for a cooking device. The cooking device includes a hot air assembly, and the hot air assembly includes a fan and a heating device. The method includes: in response to a start cooking instruction, controlling the cooking device to start cooking; during the cooking process of the cooking device, obtaining the operating parameters of the hot air assembly; the operating parameters include at least one of the following: the operating current of the fan, the operating state of a switch module included in the drive circuit of the fan, the rotational speed of the fan, the temperature rise rate of the heating device; in the case where it is determined based on the operating parameters that the hot air assembly is in an abnormal state, controlling the heating device to stop heating.

[0006] In a second aspect, an embodiment of the present application provides a control device for a cooking device. The cooking device includes a hot air assembly, and the hot air assembly includes a fan and a heating device. The device includes: a cooking module for controlling the cooking device to start cooking in response to a start cooking instruction; a parameter acquisition module for obtaining the operating parameters of the hot air assembly during the cooking process of the cooking device; the operating parameters include at least one of the following: the operating current of the fan, the operating state of a switch module included in the drive circuit of the fan, the rotational speed of the fan, the temperature rise rate of the heating device; a heating control module for controlling the heating device to stop heating in the case where it is determined based on the operating parameters that the hot air assembly is in an abnormal state.

[0007] In a third aspect, an embodiment of the present application provides a cooking device, which includes: a hot air component including a fan and a heating device; one or more processors; a memory; and one or more applications, where the one or more applications are stored in the memory and configured to be executed by the one or more processors, and the one or more applications are configured to execute the method according to the first aspect.

[0008] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which program code is stored, and the program code is called by a processor to execute the method according to the first aspect.

[0009] In a fifth aspect, an embodiment of the present application provides a computer program product, which is used to implement the method according to the first aspect when executed.

[0010] Compared with the prior art, in the cooking process of the cooking device provided by the embodiment of the present application, the operating parameters of the hot air component are obtained. The operating parameters of the hot air component include the operating current of the fan, the operating state of the switch module included in the drive circuit of the fan, the temperature rise rate of the heating device, the rotational speed of the fan, etc. Through the above operating parameters, it can be detected whether the hot air component is operating in an abnormal state. When it is detected that the hot air component is operating in an abnormal state, the heating device is controlled to stop heating, avoiding the situation that the cooking device is burned due to the abnormal operation of the hot air component, and effectively increasing the use safety of the cooking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 is a schematic diagram of a cooking device provided by an embodiment of the present application.

[0013] Figure 2 is a flowchart of a control method for a cooking device provided by an embodiment of the present application.

[0014] Figure 3 is a flowchart of a control method for a cooking device provided by another embodiment of the present application.

[0015] Figure 4 is a flowchart of a control method for a cooking device provided by another embodiment of the present application.

[0016] Figure 5It is a flowchart of a control method for a cooking device provided by another embodiment of the present application.

[0017] Figure 6 It is a flowchart of a control method for a cooking device provided by another embodiment of the present application.

[0018] Figure 7 It is a block diagram of a control device for a cooking device provided by an embodiment of the present application.

[0019] Figure 8 It is a block diagram of a cooking device provided by an embodiment of the present application.

[0020] Figure 9 It is a block diagram of a computer-readable storage medium provided by an embodiment of the present application. Detailed implementation manners

[0021] The following details the implementation manners of the present application. The examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation to the present application.

[0022] To enable those skilled in the art of the present technology to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] Please refer to Figure 1 , which shows a schematic diagram of a cooking device 100 provided by an embodiment of the present application. The cooking device 100 may be an air fryer. The cooking device 100 includes a housing assembly, a frying barrel, a hot air assembly, and an electric control device.

[0024] The housing assembly is provided with a receiving cavity for receiving the frying barrel. In some embodiments, the housing assembly is further provided with a control panel electrically connected to the electric control device. The control panel includes various function controls, such as a temperature setting control, a duration setting control, a cooking food type control, a start control, etc. After the control panel obtains a trigger signal for any function control, it generates a corresponding electrical signal and sends it to the electric control device. The electric control device executes a corresponding control instruction based on this electrical signal, thereby realizing the interaction between the user and the cooking device 100.

[0025] The frying bucket can be movably arranged in the accommodating cavity for accommodating food. In some embodiments, the frying bucket includes a bottom wall and a peripheral wall, and the peripheral wall is circumferentially connected to the periphery of the bottom wall to jointly form a cooking cavity for accommodating food.

[0026] The hot air assembly includes a fan and a heating device. The heating device is correspondingly arranged with the cooking cavity and is fixedly arranged in the housing assembly through a fixing structure. The heating device is used for heating to raise the temperature of the gas in the cooking cavity. The heating device can be a heating tube. The fan is arranged at an interval from the heating device. Specifically, the fan is arranged on the side of the heating device away from the cooking cavity, and the fan is also fixedly arranged in the housing assembly through a fixing structure. The fan is used to make the high-temperature gas generated by the heating of the heating device undergo convective circulation in the cooking cavity, thereby cooking the food. It should be noted that the fixing structure for fixing the heating device and the fixing structure for fixing the fan can be the same or different.

[0027] The electronic control device is used to control the operation of the fan and the heating device. For example, it controls the rotation speed of the fan, the heating power of the heating device, and so on. In the embodiments of the present application, the electronic control device can obtain the working parameters of the hot air assembly to monitor whether the fan is in an abnormal state. In the case of detecting that the fan is in an abnormal state, it controls the heating device to stop heating; since when the fan is in an abnormal state (such as too low rotation speed or even stopped rotation), the temperature of the heating device rises rapidly, causing the temperature of the head part of the cooking device 100 to rise abnormally, which easily leads to the cooking device being burned out or even a safety accident occurring. The technical solution provided in the embodiments of the present application can detect whether the fan is in an abnormal state according to the working parameters of the hot air assembly, and in the case of detecting that the fan is in an abnormal state, control the heating device to stop heating in time, avoiding the situation of the cooking device being burned out and effectively increasing the use safety of the cooking device.

[0028] In some embodiments, the cooking device includes a current detection device electrically connected to the electronic control device, which is used to detect and report the working current of the fan to the electronic control device, and the electronic control device detects whether the fan is in an abnormal state based on the working current of the fan. The current detection device can be: Hall current sensor, electromagnetic current transformer, TMR current sensor, etc.

[0029] In some embodiments, the drive circuit of the fan includes a switch module. The switch module is used to control the operating state of the drive circuit. When the switch module is in the closed state, the drive circuit is in the operating state to drive the fan to rotate; when the switch module is in the open state, the drive circuit exits the operating state, and at this time the fan stops rotating. Optionally, the switch module is a thyristor switch, which is an electronic component usually composed of a thyristor, a resistor, and a capacitor, and is used to control parameters such as the frequency, phase, amplitude, voltage, current, and power of the circuit. On the one hand, the thyristor module can achieve controlled rectification; on the other hand, the thyristor module can replace the relay as a non-contact switch; on the third hand, it can play the role of switching and voltage regulation in an AC circuit. In the embodiments of the present application, the cooking device detects whether the fan is in an abnormal state by monitoring the operating state of the switch module. Optionally, the cooking device includes a voltage detection device electrically connected to the electronic control device. The voltage detection device is used to detect and report the output voltage of the switch module to the electronic control device, and the electronic control device detects the operating state of the thyristor module based on the output voltage of the switch module.

[0030] In some other embodiments, the cooking device includes a rotation speed detection device electrically connected to the electronic control device, which is used to detect and report the rotation speed of the fan to the electronic control device, and the electronic control device detects whether the fan is in an abnormal state based on the rotation speed of the fan. Optionally, the rotation speed detection device is a fan rotation speed sensor.

[0031] In some other embodiments, the cooking device includes a temperature detection device electrically connected to the electronic control device, which is used to detect and report the operating temperature of the heating device to the electronic control device. The electronic control device determines the temperature rise rate of the heating device based on the operating temperature of the heating device, and then detects whether the fan is in an abnormal state according to the temperature rise rate of the heating device.

[0032] In some embodiments, a reminder module is further provided on the housing assembly. The reminder module is used to send a reminder message when it is detected that the hot air assembly is in an abnormal state. Optionally, the reminder module includes a display unit, which is used to display an abnormal code. The display unit can be a liquid crystal display screen or a digital tube. Optionally, the reminder module further includes a sound generating unit, which is used to send an alarm message. The sound generating unit can be a speaker. Optionally, the reminder module further includes a light emitting unit, which is used to emit light and flash to remind the user of the abnormality of the hot air assembly.

[0033] Please refer to Figure 2 , which shows the control method of the cooking device provided by an embodiment of the present application. The method includes the following processes.

[0034] S201, in response to the start cooking instruction, control the cooking device to start cooking.

[0035] The cooking device can obtain the start cooking instruction in the following ways.

[0036] In some possible embodiments, the control panel of the cooking device includes a start control. After receiving the trigger signal for the start control, the cooking device obtains the start cooking instruction. Before triggering the start control, the user can also set the functions involved in this cooking process and the cooking duration. Optionally, the cooking device can also obtain the start cooking instruction after obtaining at least one of the functions or cooking duration set by the user, without the user triggering the start control.

[0037] In some other possible embodiments, when the appointed time arrives, the cooking device obtains the start cooking instruction. Optionally, the control panel includes an appointment control. After the user triggers the appointment control to set the appointment duration, the cooking device records the appointment duration and generates the start cooking instruction at the appointed time after the appointment duration has elapsed.

[0038] In the embodiments of the present application, during the cooking process of the cooking device, the heating device heats at a specified heating power. The specified heating power can be set according to the gear, function, etc. selected by the user; the specified heating power can also be set by default by the cooking device. In addition, the fan rotates at a specified speed. The specified speed can be set according to the gear and function selected by the user, or can be set by the cooking device according to the heating power of the heating device. For example, when the specified heating power is larger, the specified speed is also larger, so that the hot air generated by the heating of the heating device can be timely dispersed by the fan.

[0039] S202. During the cooking process of the cooking device, obtain the working parameters of the hot air component.

[0040] The working parameters of the hot air component include at least one of the following: the working current of the fan, the working state of the switch module included in the driving circuit of the fan, the temperature rise rate of the heating device, and the rotation speed of the fan. The specific process of obtaining the working parameters of the hot air component will be described in the following embodiments.

[0041] S202. In the case where it is determined based on the working parameters that the hot air component is in an abnormal state, control the heating device to stop heating.

[0042] In the embodiments of the present application, the cooking device can monitor the working parameters of the hot air component to detect whether the hot air component is working in an abnormal state. In the case where it is detected that the hot air component is working in an abnormal state, control the heating device to stop heating, thereby avoiding the situation that the cooking device is burned due to the sharp rise in the temperature of the heating device and improving the use safety of the cooking device.

[0043] In some embodiments, when the cooking device determines that the hot air component is in an abnormal state based on the working parameters, a reminder message is sent.

[0044] In one possible implementation, the cooking device displays an error code through a display unit to remind the user that the hot air component is in an abnormal state. In another possible implementation, the cooking device emits an alarm message through a sound - emitting unit to remind the user that the hot air component is in an abnormal state. In another possible implementation, the cooking device emits light or flashes through a light - emitting unit to remind the user that the hot air component is in an abnormal state.

[0045] When the cooking device displays an error code through the display unit to remind the user that the hot air component is in an abnormal state, when the cooking device detects that the fan is in an abnormal state through different working parameters of the hot air component, the display unit can display the same error code (for example, the error code is "ERROR"), or can display different error codes. Optionally.

[0046] Implementing the display of the error code through the display unit is as follows: When it is determined that the hot air component is in an abnormal state based on the working parameters, determine the type of abnormality; obtain the error code corresponding to the type of abnormality based on a preset correspondence; display the error code corresponding to the type of abnormality through the display unit. The type of abnormality characterizes the parameter type of the working parameter that determines that the hot air component is in an abnormal state. The preset correspondence includes the relationship between different types of abnormalities and different error codes. Table - 1 below exemplarily shows the preset correspondence.

[0047]

[0048] Table - 1

[0049] With reference to Table - 1, when the cooking device detects that the hot air component is in an abnormal state through the working temperature of the heating device, the display unit displays the error code "ERROR_03". In this way, when the cooking device detects that the fan is in an abnormal state through different working parameters of the hot air component, the display unit displays different error codes, and maintenance personnel can troubleshoot the cause of the malfunction of the cooking appliance based on the error codes displayed by the cooking device.

[0050] In summary, the technical solution provided by the embodiments of the present application obtains the operating parameters of the hot air component during the cooking process of the cooking device. The operating parameters of the hot air component include the operating current of the fan, the operating state of the thyristor module included in the drive circuit of the fan, the temperature information of the heating device, the rotational speed of the fan, etc. Through the above operating parameters, it can be detected whether the hot air component is operating in an abnormal state. When it is detected that the hot air component is operating in an abnormal state, the heating device is controlled to stop heating, avoiding the situation that the cooking device is burned due to the abnormal operation of the hot air component, and effectively increasing the use safety of the cooking device.

[0051] The following elaborates on the situation where the operating parameters of the hot air component include the operating current of the fan. Please refer to Figure 3 , which shows a flowchart of a control method for a cooking device in the present application. The method includes the following processes.

[0052] S301, in response to the start cooking instruction, control the cooking device to start cooking.

[0053] S302, during the cooking process of the cooking device, obtain the operating parameters of the hot air component.

[0054] In the embodiments of the present application, the operating parameters of the hot air component include the operating current of the fan. In this embodiment, S302 is replaced and implemented as: obtaining the operating current of the fan through the current detection device every first preset period.

[0055] The first preset period can be default set by the current detection device or set by the electronic control device. The embodiments of the present application do not limit this. Exemplarily, the first preset period is 2 seconds.

[0056] S303, when it is monitored that the operating current of the fan meets the abnormal current condition, start continuous monitoring.

[0057] In some embodiments, the abnormal current condition includes that the difference between the operating current of the fan and the normal operating current is greater than the preset difference. In other embodiments, the abnormal current condition includes that the ratio between the operating current of the fan and the normal operating current is greater than the preset ratio. In still other embodiments, the abnormal current condition includes that the operating current of the fan is greater than the preset current.

[0058] Among them, the normal operating current is determined according to the gear of the fan. Specifically, the fan includes multiple gears, and the rotational speeds corresponding to different gears are different, and the normal operating currents corresponding to different gears are also different. The normal operating current corresponding to the gear with a higher rotational speed is also larger. In the embodiments of the present application, the cooking device can obtain the normal operating current matching the current gear of the fan, and then compare the current detected by the current detection device with the above normal operating current to further determine whether the abnormal operating condition is met.

[0059] The preset difference is set according to experiments or experience. Exemplarily, the preset difference is 3A. The preset ratio is set according to experiments or experience, such as 2 times. The preset current is set according to experiments or experience, and the embodiments of the present application do not limit this.

[0060] S304. When it is monitored that the duration for which the working current of the fan satisfies the abnormal current condition is greater than the first preset duration, control the heating device to stop heating.

[0061] The first preset duration is set according to experiments or experience. Exemplarily, the first preset duration is 5 seconds.

[0062] In the embodiments of the present application, the cooking device is provided with a first timer, which is set to allow interruption, and the time of the timing interruption is the above-mentioned first preset duration. When it is detected that the working current of the fan satisfies the abnormal current condition, the timing starts. When it is detected that the working current of the fan does not satisfy the abnormal current condition, the count of the first timer is reset to zero. Until the first timer has a timing interruption and the electronic control device obtains the timing interruption signal sent by the first timer, it is determined that the duration for which the working current of the fan satisfies the abnormal current condition is greater than the first preset duration. At this time, control the heating device to stop heating.

[0063] In summary, the technical solution provided by the embodiments of the present application monitors the working current of the fan during the cooking process of the cooking device. When it is detected that the duration for which the working current of the fan satisfies the abnormal current condition is greater than the first preset duration, it is determined that the hot air component is working in an abnormal state, and the heating device is controlled to stop heating, avoiding the situation that the cooking device is burned due to the abnormal working of the hot air component, and effectively increasing the use safety of the cooking device.

[0064] The following describes the situation of the working parameters of the hot air component, including the working state of the thyristor module included in the drive circuit of the fan. Please refer to Figure 4 , which shows the flowchart of the control method of the cooking device provided by an embodiment of the present application. The method includes the following processes.

[0065] S401. In response to the start cooking instruction, control the cooking device to start cooking.

[0066] S402. During the cooking process of the cooking device, obtain the working parameters of the hot air component.

[0067] In the embodiments of the present application, the working parameters of the hot air component include the working state of the switch module included in the drive circuit of the fan. In this embodiment, S402 is replaced and implemented as: obtain the working state of the switch module.

[0068] Optionally, the switch module is a thyristor switch. A thyristor switch is an electronic component, usually composed of a thyristor, a resistor, and a capacitor, and is used to control parameters such as the frequency, phase, amplitude, voltage, current, and power of a circuit. In the first aspect, the thyristor switch can achieve controlled rectification; in the second aspect, the thyristor switch can replace a relay as a non-contact switch; in the third aspect, it can play the role of switching and voltage regulation in an AC circuit. The working states of the switch module include a through state and a non-through state.

[0069] In some embodiments, the cooking device is provided with a voltage detection device. The specific implementation of the cooking device for obtaining the working state of the switch module is as follows: detecting the output voltage of the switch module through the voltage detection device; determining that the switch module is in the through state when the output voltage of the switch module is a specified value; and determining that the switch module is in the non-through state when the output voltage of the switch module is not the specified value. Wherein, the specified value is 0V.

[0070] S403, when the working state of the switch module is in the non-through state, controlling the heating device to stop heating.

[0071] When the hot air component is in a normal working state, the switch module can be equivalent to a switch in a closed state. At this time, it is in the through state and the output voltage is 0V. On the contrary, when the hot air component is in an abnormal working state, it is in the non-through state and there is an output voltage. Therefore, the electronic control device can judge whether the hot air component is in an abnormal state based on the working state of the switch module, and control the heating device to stop heating when it detects that the hot air component is working in an abnormal state.

[0072] In summary, the technical solution provided by the embodiments of the present application monitors the working state of the thyristor module included in the driving circuit of the fan during the cooking process of the cooking device. When it is detected that the thyristor module is in the non-through state, it is determined that the hot air component is working in an abnormal state, and the heating device is controlled to stop heating, avoiding the situation that the cooking device is burned due to the abnormal working of the hot air component, and effectively increasing the use safety of the cooking device.

[0073] Please refer to Figure 5 , which shows a flowchart of a control method for a cooking device provided by an embodiment of the present application. The method includes the following processes.

[0074] S501, in response to a start cooking instruction, controlling the cooking device to start cooking.

[0075] S502, during the cooking process of the cooking device, obtaining the working parameters of the hot air component.

[0076] In the embodiment of the present application, the operating parameters of the hot air assembly include the temperature rise rate of the heating device. In this embodiment, S502 is replaced and implemented as follows: The temperature information of the heating device is obtained every second preset period through the temperature detection device, and the temperature rise rate of the heating device is determined based on a plurality of temperature information obtained by the temperature detection device.

[0077] The second preset period can be default set by the temperature detection device or set by the electronic control device. Exemplarily, the second preset period is 1 second.

[0078] In some embodiments, the cooking device obtains the first temperature information and the second temperature information from a plurality of temperature information. The first temperature information is the temperature information first obtained by the temperature detection device among the plurality of temperature information, and the second temperature information is the temperature information last obtained by the temperature detection device among the plurality of temperature information. The cooking device obtains the difference between the first temperature information and the second temperature information, and determines the temperature rise rate of the heating device as the ratio of the difference to the specified duration. The specified duration refers to the duration between the acquisition time of the first temperature information and the acquisition time of the second temperature information. Exemplarily, the temperature information obtained at 10:50:22 is 110°C, the temperature information obtained at 10:50:24 is 135°C, and the temperature information obtained at 10:50:26 is 160°C, then the temperature change rate is (160 - 110) / 4 = 12.5°C / s.

[0079] In some embodiments, the cooking device determines the temperature rise rate of the heating device every fourth preset period. Among them, the fourth preset period can be an integer multiple of the second preset period. For example, the second preset period is 1 second, and the second preset period is 5 seconds.

[0080] S503, when the temperature rise rate of the heating device is greater than the preset rate, control the heating device to stop heating.

[0081] The preset rate is set according to experiments or experience, and the embodiments of the present application do not limit this. Exemplarily, the preset change rate is 5°C / s.

[0082] When the hot air assembly is in a normal working state, the hot air generated by the heating of the heating device will be blown away by the fan. At this time, the temperature change of the heating device is usually small. On the contrary, when the hot air assembly is in an abnormal working state, the fan stops working, but the heating device is still heating. Since the hot air cannot be blown away in time, the temperature change of the heating device is usually large. Therefore, the electronic control device can judge whether the hot air assembly is in an abnormal state based on the temperature rise rate of the heating device, and control the heating device to stop heating when it detects that the hot air assembly is in an abnormal state.

[0083] In summary, in the cooking process of the cooking device according to the embodiment of the present application, the temperature change rate of the heating device is monitored. When it is detected that the temperature change rate of the heating device is greater than the preset change rate, it is determined that the hot air component is in an abnormal state, and the heating device is controlled to stop heating, so as to avoid the situation that the cooking device is burned due to the abnormal operation of the hot air component, effectively increasing the use safety of the cooking device.

[0084] Please refer to Figure 6 , which shows a flowchart of a control method for a cooking device provided by an embodiment of the present application. The method includes the following processes.

[0085] S601, in response to the start cooking instruction, control the cooking device to start cooking.

[0086] S602, during the cooking process of the cooking device, obtain the operating parameters of the hot air component.

[0087] In the embodiment of the present application, the operating parameters of the hot air component include the rotation speed of the fan. In this embodiment, S602 is replaced and implemented as: obtain the rotation speed of the fan every third preset period through the rotation speed detection device.

[0088] The third preset period can be default set by the rotation speed detection device or set by the electronic control device. Exemplarily, the third preset period is 1 second.

[0089] S603, when it is monitored that the rotation speed of the fan is less than the preset rotation speed, start continuous monitoring.

[0090] The preset rotation speed is less than the specified rotation speed of the fan, and the above-mentioned specified rotation speed is determined according to the gear of the fan. Specifically, the preset rotation speed is the specified rotation speed minus a fixed value. For example, the specified rotation speed is 2000 revolutions per minute, and the preset rotation speed is 1500 revolutions per minute.

[0091] S604, when it is monitored that the continuous duration of the rotation speed of the fan being less than the preset rotation speed is greater than the second preset duration, control the heating device to stop heating.

[0092] The second preset duration is set according to experiments or experience, and the embodiment of the present application does not limit this. Exemplarily, the second preset duration is 5 seconds.

[0093] In an embodiment of the present application, the cooking device is provided with a second timer, which is set to allow interruption, and the time of the timed interruption is the above-mentioned second preset duration. The second timer starts timing when it is detected that the rotational speed of the fan is less than the preset rotational speed, and when it is detected that the rotational speed of the fan is greater than or equal to the preset rotational speed, the count of the second timer is reset to zero. Until the second timer has a timed interruption, and the electronic control device obtains the timed interruption signal sent by the second timer, it is determined that the duration during which the rotational speed of the fan is less than the preset rotational speed is greater than the second preset duration. At this time, the heating device is controlled to stop heating.

[0094] In summary, the technical solution provided by the embodiment of the present application monitors the rotational speed of the fan during the cooking process of the cooking device. When it is detected that the duration during which the rotational speed of the fan is less than the preset rotational speed is greater than the second preset duration, it is determined that the hot air component is in an abnormal state, and the heating device is controlled to stop heating, avoiding the situation that the cooking device is burned due to the abnormal operation of the hot air component, and effectively increasing the use safety of the cooking device.

[0095] Please refer to Figure 7 , which shows a structural block diagram of a control device of a cooking device proposed in an embodiment of the present application. The cooking device includes a hot air component, and the hot air component includes a fan and a heating device. The device includes: a cooking module 710, a parameter acquisition module 720, and a heating control module 730.

[0096] The cooking module 710 is configured to control the cooking device to start cooking in response to a start cooking instruction.

[0097] The parameter acquisition module 720 is configured to acquire the working parameters of the hot air component during the cooking process of the cooking device; the working parameters include at least one of the following: the working current of the fan, the working state of the switch module included in the driving circuit of the fan, the rotational speed of the fan, and the temperature rise rate of the heating device.

[0098] The heating control module 730 is configured to control the heating device to stop heating when it is determined that the hot air component is in an abnormal state based on the working parameters.

[0099] In some embodiments, the cooking device is provided with a current detection device. The parameter acquisition module 720 is configured to acquire the working current of the fan through the current detection device every first preset period. The heating control module 730 is configured to start continuous monitoring when it is monitored that the working current of the fan meets the abnormal current condition; when it is monitored that the duration during which the working current of the fan meets the abnormal current condition is greater than the first preset duration, control the heating device to stop heating; wherein, the abnormal current condition includes at least one of the following: the difference between the working current of the fan and the normal working current is greater than the preset difference, the ratio of the working current of the fan to the normal working current is greater than the preset ratio, and the working current of the fan is greater than the preset current.

[0100] In some embodiments, the parameter acquisition module 720 is configured to acquire the operating state of the switch module. The heating control module 730 is configured to control the heating device to stop heating when the operating state of the switch module is in a non-direct-through state.

[0101] In some embodiments, the cooking device includes a voltage detection device. The parameter acquisition module 720 is configured to detect the output voltage of the switch module through the voltage detection device; determine that the switch module is in a direct-through state when the output voltage of the switch module is a specified value; and determine that the switch module is in a non-direct-through state when the output voltage of the switch module is not the specified value.

[0102] In some embodiments, the cooking device further includes a temperature detection device. The parameter acquisition module 720 is configured to acquire the temperature information of the heating device every second preset period through the temperature detection device, and determine the temperature rise rate of the heating device based on a plurality of temperature information acquired by the temperature detection device. The heating control module 730 is configured to control the heating device to stop heating when the temperature rise rate of the heating device is greater than a preset rate.

[0103] In some embodiments, the cooking device further includes a rotation speed detection device. The parameter acquisition module 720 is configured to acquire the rotation speed of the fan every third preset period through the rotation speed detection device. The heating control module 730 is configured to start continuous monitoring when it is monitored that the rotation speed of the fan is less than a preset rotation speed; and control the heating device to stop heating when the continuous duration of monitoring that the rotation speed of the fan is less than the preset rotation speed is greater than a second preset duration.

[0104] In some embodiments, the device further includes a reminder module (not shown in the figure). The reminder module is configured to issue a reminder message when it is determined based on the operating parameters that the hot air component is in an abnormal state.

[0105] In some embodiments, the reminder module is configured to determine the abnormal type when it is determined based on the operating parameters that the hot air component is in an abnormal state, where the abnormal type represents the parameter type of the operating parameter for which the abnormal state is determined; acquire the abnormal code corresponding to the abnormal type based on a preset correspondence relationship, where the preset correspondence relationship includes a mapping relationship between different abnormal types and different abnormal codes; and display the abnormal code corresponding to the abnormal type.

[0106] In summary, for the technical solution provided in the embodiments of the present application, during the cooking process of the cooking device, the operating parameters of the hot air component are obtained. The operating parameters of the hot air component include the operating current of the fan, the operating state of the thyristor module included in the drive circuit of the fan, the temperature information of the heating device, the rotation speed of the fan, etc. Through the above operating parameters, it can be detected whether the hot air component is operating in an abnormal state. When it is detected that the hot air component is operating in an abnormal state, the heating device is controlled to stop heating, avoiding the situation that the cooking device is burned due to the abnormal operation of the hot air component, and effectively increasing the use safety of the cooking device.

[0107] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0108] In several embodiments provided in the present application, the coupling between modules can be electrical, mechanical, or other forms of coupling.

[0109] In addition, in each embodiment of the present application, each functional module can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0110] As Figure 8 shown, the present application example also provides a cooking device 800, and the cooking device 800 includes a processor 810 and a memory 820. Among them, the memory 820 stores computer program instructions.

[0111] The processor 810 may include one or more processing cores. The processor 810 is connected to various parts within the entire battery management system through various interfaces and lines. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 820, and by invoking the data stored in the memory 820, it performs various functions of the battery management system and processes data. Optionally, the processor 810 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). The processor 88 may integrate a combination of one or more of a central processing unit 810 (CPU), a graphics processing unit 810 (GPU), and a modem, etc. Among them, the CPU mainly processes the operating system, user interface, application programs, etc.; the GPU is responsible for rendering and drawing the displayed content; the modem is used to process wireless communication. It can be understood that the above-mentioned modem may not be integrated into the processor 810 and may be implemented separately through a communication chip.

[0112] The memory 820 may include a random access memory 820 (RAM), and may also include a read-only memory 820 (ROM). The memory 820 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 820 may include a program storage area and a data storage area. Among them, the program storage area may store instructions for implementing the operating system, instructions for implementing at least one function (such as a touch function, a sound playback function, etc.), instructions for implementing the following various method examples, etc. The data storage area may also store data created during the use of the cooking device.

[0113] Please refer to Figure 9 , which shows that the embodiment of the present application further provides a computer-readable storage medium 900. Computer program instructions 99 are stored in the computer-readable storage medium 900, and the computer program instructions 99 can be called by the processor to execute the methods described in the above embodiments.

[0114] The computer-readable storage medium 900 can be an electronic memory such as a flash memory, EEPROM (electrically erasable programmable read-only memory), EPROM, hard disk, or ROM. Optionally, the computer-readable storage medium 900 includes a non-transitory computer-readable storage medium. The computer-readable storage medium 900 has a storage space for computer program instructions 99 that execute any of the method steps S in the above-described method. These computer program instructions 99 can be read from or written to one or more computer program products. The computer program instructions 99 can be compressed in a suitable form.

[0115] The above are only the better examples of the present application, and do not impose any formal restrictions on the present application. Although the present application has been disclosed above with better examples, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to equivalent examples with equivalent changes within the scope of the technical solution of the present application by using the technical content disclosed above. However, as long as the content of the technical solution of the present application is not departed from, any brief modifications, equivalent changes and modifications made to the above examples based on the technical essence of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A control method for a cooking device, characterized in that, The cooking device includes a hot air component, and the hot air component includes a fan and a heating device. The method includes: In response to a start cooking instruction, controlling the cooking device to start cooking; During the cooking process of the cooking device, obtaining the operating parameters of the hot air component; the operating parameters include at least one of the following: the operating current of the fan, the operating state of the switch module included in the drive circuit of the fan, the rotation speed of the fan, the temperature rise rate of the heating device; When it is determined that the hot air component is in the abnormal state based on the operating parameters, controlling the heating device to stop heating.

2. The method according to claim 1, characterized in that, The cooking device is provided with a current detection device; The obtaining of the operating parameters of the hot air component includes: Obtaining the operating current of the fan through the current detection device every first preset period; The controlling the heating device to stop heating when it is determined that the hot air component is in the abnormal state based on the operating parameters includes: When it is monitored that the operating current of the fan meets the abnormal current condition, starting continuous monitoring; When it is monitored that the duration for which the operating current of the fan meets the abnormal current condition is greater than the first preset duration, controlling the heating device to stop heating; Wherein, the abnormal current condition includes at least one of the following: the difference between the operating current of the fan and the normal operating current is greater than a preset difference, the ratio of the operating current of the fan to the normal operating current is greater than a preset ratio, the operating current of the fan is greater than a preset current.

3. The method according to claim 1, wherein The obtaining of the operating parameters of the hot air component includes: Obtaining the operating state of the switch module, and the operating state of the switch module includes a direct connection state and a non-direct connection state; The controlling the heating device to stop heating when it is determined that the hot air component is in the abnormal state based on the operating parameters includes: When the operating state of the switch module is in the non-direct connection state, controlling the heating device to stop heating.

4. The method according to claim 3, characterized in that, The cooking device includes a voltage detection device, and the obtaining of the operating state of the switch module includes: Detecting the output voltage of the switch module through the voltage detection device; When the output voltage of the switch module is a specified value, determining that the switch module is in the direct connection state; When the output voltage of the switch module is not the specified value, determining that the switch module is in the non-direct connection state.

5. The method according to claim 1, wherein The cooking device further includes a temperature detection device; The obtaining of the operating parameters of the hot air component includes: Obtaining the temperature information of the heating device through the temperature detection device every second preset period; Determining the temperature rise rate of the heating device based on a plurality of temperature information obtained by the temperature detection device; The controlling the heating device to stop heating when it is determined that the hot air component is in the abnormal state based on the operating parameters includes: When the temperature rise rate of the heating device is greater than a preset rate, controlling the heating device to stop heating.

6. The method according to claim 1, characterized in that, The cooking device includes a rotation speed detection device; The obtaining of the operating parameters of the hot air component includes: Obtain the rotation speed of the fan every third preset period through the rotation speed detection device; When it is determined that the hot air component is in the abnormal state based on the working parameters, controlling the heating device to stop heating includes: When it is monitored that the rotation speed of the fan is less than the preset rotation speed, start continuous monitoring; When it is monitored that the continuous duration during which the rotation speed of the fan is less than the preset rotation speed is greater than the second preset duration, control the heating device to stop heating.

7. The method according to any one of claims 1 to 6, characterized in that, The method further includes: When it is determined that the hot air component is in the abnormal state based on the working parameters, send a reminder message.

8. The method according to claim 7, characterized in that When it is determined that the hot air component is in the abnormal state based on the working parameters, sending a reminder message includes: When it is determined that the hot air component is in the abnormal state based on the working parameters, determine the abnormal type, where the abnormal type characterizes the parameter type of the working parameters for which the abnormal state is determined; Obtain the abnormal code corresponding to the abnormal type based on the preset correspondence relationship, where the preset correspondence relationship includes the mapping relationship between different abnormal types and different abnormal codes; Display the abnormal code corresponding to the abnormal type.

9. A control device for a cooking apparatus, characterized in that, The cooking device includes a hot air component, the hot air component includes a fan and a heating device, and the device includes: A cooking module, configured to control the cooking device to start cooking in response to a start cooking instruction; A parameter acquisition module, configured to acquire the working parameters of the hot air component during the cooking process of the cooking device; the working parameters include at least one of the following: the working current of the fan, the working state of the switch module included in the drive circuit of the fan, the rotation speed of the fan, the temperature rise rate of the heating device; A heating control module, configured to control the heating device to stop heating when it is determined that the hot air component is in the abnormal state based on the working parameters.

10. A cooking device, characterized in that, The cooking device includes: A hot air component, the hot air component includes a fan and a heating device; One or more processors; A memory; One or more application programs, where one or more of the application programs are stored in the memory and are configured to be executed by one or more of the processors, and one or more of the application programs are configured to execute the method according to any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that, Program code is stored in the computer-readable storage medium, and the program code is called by the processor to execute the method according to any one of claims 1 to 8.

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