Aerosol generating device, control method thereof, control circuit, and storage medium

Abstract

The present application discloses an aerosol generating device and its control method, control circuit, and storage medium. The control method of the aerosol generating device includes: obtaining the heating rate of a heating body; in response to the difference between the heating rate of the heating body and a preset rate being greater than a threshold value, reducing the energy supplied to the heating body by the aerosol generating device or controlling the aerosol generating device to stop supplying energy to the heating body; wherein the preset rate is the heating rate of the heating body when the aerosol generating device is in a state where a solid aerosol generating product is accommodated, which can prevent dry burning and improve the safety performance of the aerosol generating device.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an aerosol generating device and a control method, a control circuit, and a storage medium thereof. Background Art

[0002] Aerosol-generating devices heat and bake aerosol-generating substrates (such as plant leaf materials) in various forms of solid aerosol-generating products to produce aerosols, which are then delivered to the user for inhalation. This "heat-not-burn" method heats the aerosol-generating substrate at relatively low temperatures (200°C-400°C), preventing combustion and producing no open flames.

[0003] Most aerosol generating devices currently on the market do not have the function of determining whether solid aerosol generating products are contained, posing safety hazards such as dry burning. Summary of the Invention

[0004] The aerosol generating device and its control method, control circuit, and storage medium provided in the present application can determine whether the aerosol generating device contains a solid aerosol generating product, thereby improving the safety performance of the aerosol generating device.

[0005] In order to solve the above technical problems, the first technical solution provided by the present application is: providing a control method for an aerosol generating device, wherein the aerosol generating device is used to atomize a solid aerosol-generating product, and the aerosol generating device includes a heating body, including:

[0006] Obtaining the heating rate of the heating body;

[0007] In response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold value, the energy supplied by the aerosol generating device to the heating body is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body; wherein, the preset rate is the heating rate of the heating body when the aerosol generating device is in a state where the solid aerosol generating product is accommodated.

[0008] In one embodiment, the control method further includes: in response to a difference between the heating rate and the preset rate being less than or equal to the threshold, controlling the heating body to continue heating.

[0009] In one embodiment, obtaining the heating rate of the heating body specifically includes:

[0010] Acquire a temperature-time variation curve of the heating body within a first preset time range;

[0011] Determining a heating rate of the heating body within the first preset time range based on the temperature-time variation curve;

[0012] The preset rate is the temperature increase rate of the heating body within the first preset time range when the aerosol generating device contains the solid aerosol generating product.

[0013] In one embodiment, the first preset time range is from the time point corresponding to when the heating body starts heating to the time point corresponding to when the heating body heats up to the atomization temperature; or

[0014] The first preset time range is from the first preset time point after the heating body starts heating to the time point when the heating body is heated to the atomization temperature; or

[0015] The first preset time range is from a first preset time point after the heating body starts heating to a second preset time point after the heating body starts heating;

[0016] The first preset time point is earlier than the second preset time point, and the second preset time point is earlier than the time point when the heating body is heated to the atomization temperature.

[0017] In one embodiment, obtaining the heating rate of the heating body specifically includes:

[0018] obtaining a temperature rise rate of the heating body in each of a plurality of consecutive preset time intervals after the heating body starts heating;

[0019] In response to the difference between the heating rate and the preset rate being greater than a threshold, reducing the energy supplied by the aerosol generating device to the heating body or controlling the aerosol generating device to stop supplying energy to the heating body specifically includes:

[0020] Comparing the heating rate of the heating body within a plurality of the preset time intervals with corresponding preset rates within a plurality of the preset time intervals in sequence;

[0021] In response to the difference between the temperature rise rate of the heating body within a certain preset time interval and the corresponding preset rate within a certain preset time interval being greater than a threshold, the energy delivered by the aerosol generating device to the heating body is reduced or the aerosol generating device is controlled to stop delivering energy to the heating body.

[0022] In one embodiment, the step of reducing the energy delivered to the heating body by the aerosol generating device or controlling the aerosol generating device to stop delivering energy to the heating body in response to a difference between the heating rate of the heating body and a preset rate being greater than a threshold value comprises:

[0023] Send a reminder signal.

[0024] In one embodiment, the step of issuing a reminder signal includes:

[0025] obtaining the heating rate of the heating body again;

[0026] In response to the difference between the temperature increase rate of the heating body and the preset rate within a second preset time after the reminder signal is issued being greater than a threshold, the aerosol generating device is controlled to stop supplying energy to the heating body.

[0027] In one embodiment, the step of issuing a reminder signal includes:

[0028] obtaining the heating rate of the heating body again;

[0029] In response to the difference between the heating rate of the heating body and the preset rate within the second preset time after the reminder signal is issued being less than or equal to a threshold, the heating body is controlled to continue heating.

[0030] In order to solve the above technical problems, the second technical solution provided in this application is: providing a control circuit, including a detection module and a processing module; the detection module is used to obtain the heating rate of the heating body; the processing module is used to reduce the energy supplied by the aerosol generating device to the heating body or control the aerosol generating device to stop supplying energy to the heating body in response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold.

[0031] In order to solve the above technical problems, the third technical solution provided in this application is: to provide an aerosol generating device, including a memory and a processor, the memory storing program instructions, and the processor retrieving the program instructions from the memory to execute the control method of the aerosol generating device as described in any one of the above items.

[0032] In one embodiment, the aerosol generating device further comprises a heating component; the heating component has a receiving tank, and the receiving tank is used to receive the solid aerosol generating product;

[0033] The heating component includes a heater having a TCR performance, and the processor is used to obtain a resistance change rate of the heater;

[0034] Alternatively, the heating component includes a heating body and a temperature sensor, and the processor obtains the heating rate of the heating body through the temperature sensor.

[0035] In order to solve the above technical problems, the fourth technical solution provided in this application is: providing a computer-readable storage medium, which is used to store a control program. When the control program is executed by a processor, it is used to implement the control method of the aerosol generating device as described in any one of the above items.

[0036] Beneficial effects of the present application: Different from the prior art, the present application discloses an aerosol generating device and its control method, control circuit, and storage medium. The control method of the aerosol generating device includes: obtaining the heating rate of the heating body; in response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold value, reducing the energy supplied to the heating body by the aerosol generating device or controlling the aerosol generating device to stop supplying energy to the heating body; wherein the preset rate is the heating rate of the heating body when the aerosol generating device is in a state where a solid aerosol generating product is accommodated, which can prevent dry burning and improve the safety performance of the aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] Figure 1 is a temperature-time curve diagram of the aerosol generating device provided by the present application in two states: with and without accommodating a solid aerosol generating product;

[0039] Figure 2 This is a flow chart of a first embodiment of a method for controlling an aerosol generating device provided by the present application;

[0040] Figure 3 yes Figure 2 FIG. 1 is a flow chart of step S11 of a first embodiment of a method for controlling an aerosol generating device;

[0041] Figure 4 2 is a flow chart of a second embodiment of a method for controlling an aerosol generating device provided by the present application;

[0042] Figure 5 1 is a flow chart of a third embodiment of a method for controlling an aerosol generating device provided by the present application;

[0043] Figure 6 1 is a flow chart of a fourth embodiment of a method for controlling an aerosol generating device provided by the present application;

[0044] Figure 7 1 is a flow chart of a fifth embodiment of a method for controlling an aerosol generating device provided by the present application;

[0045] Figure 8 is a schematic structural diagram of a control circuit provided in an embodiment of the present application;

[0046] Figure 9 Schematic diagram of the structure of the aerosol generating device provided in the embodiment of the present application;

[0047] Figure 10 A schematic diagram of a computer-readable storage medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0049] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0050] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "including" and "having" in the embodiments of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0051] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0053] An aerosol generating device typically consists of a control unit (MCU circuit), a temperature detection unit (sensor circuit), a heating unit (heating element circuit), and a human-computer interface unit (LED, button, and other circuits). The control unit uses the human-computer interface unit to turn the device on and off. After powering on, the temperature detection unit detects the temperature of the heating element in the heating element, allowing the heating unit to precisely control the temperature and heat the device. After powering off, the heating unit shuts down, gradually cooling the heating element.

[0054] The heating principle of the aerosol generating device is to heat the aerosol generating product through heat transfer. Among them, heat transfer is a physical phenomenon, which is essentially the phenomenon of heat energy transfer caused by temperature difference, and the direction of heat transfer is from the object with high temperature to the object with low temperature. When an aerosol generating product is inserted into the aerosol generating device, based on the heat transfer phenomenon, the heat generated by the heating body of the aerosol generating device needs to be transferred to the aerosol generating product so that the aerosol generating product generates aerosol. When the aerosol generating product is not inserted into the aerosol generating device, the heat generated by the heating body of the aerosol generating device does not need to be transferred to other objects. The heat is concentrated on the heating body, resulting in dry burning, which will reduce the service life of the heating body and pose a safety hazard. Therefore, it is necessary to detect the state of the aerosol generating device without the aerosol generating product inserted.

[0055] See also Figure 1 , Figure 1 This is a temperature-time curve diagram of the aerosol generating device provided in the present application in two states: with and without accommodating a solid aerosol generating product.

[0056] The principle of determining whether the aerosol-generating device contains no solid aerosol-generating product is as follows: by comparing the temperature-time curves of the aerosol-generating device when it contains a solid aerosol-generating product with the temperature-time curves of the aerosol-generating device when it does not contain an aerosol-generating product, it is found that the heating rates of the two states are significantly different from the time the heating element of the aerosol-generating device begins to heat up until the heating element reaches the atomization temperature. The corresponding heating rate of the aerosol-generating device when it does not contain an aerosol-generating product is significantly faster than the corresponding heating rate of the aerosol-generating device when it contains an aerosol-generating product. After the heating element reaches the atomization temperature, the temperature of the heating element remains substantially stable as heating proceeds.

[0057] It should be noted that the temperature-time curve when the aerosol generating device contains a solid aerosol generating product and the temperature-time curve when the aerosol generating device does not contain a solid aerosol generating product are obtained by using the same model of aerosol generating device and the heating power of the heating body of the aerosol generating device is the same.

[0058] See also Figure 2 , Figure 2 It is a flow chart of the first embodiment of the control method of the aerosol generating device provided in the present application.

[0059] This embodiment provides a control method for an aerosol generating device, wherein the aerosol generating device is used to atomize a solid aerosol generating product, and the aerosol generating device includes a heater. It should be noted that the aerosol generating device includes a heating component, and the heating component includes a heater and a heating element. The heat generated by the heater is transferred to the heater, and the heater bakes and heats the solid aerosol generating product. In one embodiment, the heater has a heating function, that is, the heater and the heater are the same structure. In another embodiment, the heater and the heater are two independent structures. The control method for an aerosol generating device includes the following steps:

[0060] Step S11: obtaining the heating rate of the heating body.

[0061] Specifically, see Figure 3 , Figure 3 yes Figure 2 FIG. 1 is a flow chart of a first embodiment of a method for controlling an aerosol generating device, step S11 of which is shown. In the first embodiment of step S11, the step of obtaining the heating rate of the heating body includes:

[0062] Step S111: obtaining a temperature-time variation curve of the heating body within a first preset time range.

[0063] In one embodiment, the temperature of the heating body is acquired by a temperature sensor, thereby obtaining a temperature-time variation curve of the heating body.

[0064] In one embodiment, the heater is a heater with a TCR performance. In this case, there is a specific relationship between the temperature of the heater and its resistance. The temperature of the heater is determined by detecting the resistance of the heater, and a temperature-time curve of the heater is then obtained. It should be noted that the determination of whether a solid aerosol-generating article is contained in the aerosol-generating device can also be made by comparing the rate of change of the heater's resistance with a preset rate of change of resistance. This process does not require converting the resistance into temperature, but essentially the determination is made based on the rate of temperature rise of the heater.

[0065] Step S112: deriving a heating rate of the heating body within a first preset time range based on the temperature-time variation curve.

[0066] Specifically, the slope of the curve within the first preset time range is obtained based on the temperature-time variation curve, and then the heating rate of the heating body within the first preset time range is obtained.

[0067] In the second embodiment of step S11, the step of obtaining the heating rate of the heating body includes: obtaining the heating rate of the heating body in each preset time interval within several consecutive preset time intervals after the heating body starts to heat. For example, the preset time interval is 1 second, and the heating rates of the heating body corresponding to 0-1 seconds, 1 second-2 seconds, 2 seconds-3 seconds, 3 seconds-4 seconds, etc. after the heating body is heated are obtained respectively. Or the preset time interval is 0.5 seconds, 0.6 seconds, etc., which is not limited by the present invention. In practical applications, the time can be set according to the different materials and temperature rise curves of the heating body. Specifically, the temperature-time change curve after the heating body starts to heat is first obtained, and the heating rate of the heating body in each preset time interval is obtained based on the temperature-time change curve. Among them, the method of obtaining the temperature-time change curve of the heating body is the same as that in the first embodiment of step S11, and will not be repeated.

[0068] Step S12: In response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold value, the energy supplied by the aerosol generating device to the heating body is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body; wherein the preset rate is the heating rate of the heating body when the aerosol generating device is in a state where a solid aerosol generating product is accommodated.

[0069] Specifically, when the heating rate of the heating body is inconsistent with the heating rate of the heating body when the aerosol generating device contains an aerosol generating product, that is, when the heating rate of the heating body is inconsistent with the preset rate, it is determined that the aerosol generating device does not contain a solid aerosol generating product, and the energy supplied to the heating body by the aerosol generating device is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body. It should be noted that if the heating rate of the heating body fluctuates around the preset rate, and the fluctuation range is a threshold, the heating rate of the heating body is considered to be consistent with the preset rate; if the difference between the heating rate of the heating body and the preset rate is greater than the threshold, the heating rate of the heating body is considered to be inconsistent with the preset rate. For the same aerosol generating device, the preset rate is fixed; the threshold can be designed according to the requirements for judgment accuracy.

[0070] When step S11 adopts the first embodiment, the preset rate is the temperature increase rate of the heating body within the first preset time range when the aerosol generating device contains the solid aerosol generating product.

[0071] In one embodiment, the first preset time range is the time point corresponding to when the heating body starts heating to the time point corresponding to when the heating body heats up to the atomization temperature. The time point corresponding to when the heating body starts heating is the time point when the aerosol generating device receives the start signal and controls the heating body to start heating. Figure 1It can be seen that during the period from when the heating element begins heating to when it reaches the atomization temperature, the temperature rise rates differ significantly between when the aerosol-generating device contains a solid aerosol-generating product and when it does not. Comparing the temperature rise rates during this period can determine whether the aerosol-generating device contains a solid aerosol-generating product. For example, if the time corresponding to when the heating element begins heating is defined as 0 and the time corresponding to when the heating element reaches the atomization temperature is 6 seconds, the temperature-time curve of the heating element from 0 to 6 seconds is obtained.

[0072] In one embodiment, the first preset time range is from the first preset time point after the heating body starts heating to the time point corresponding to the heating body heating up to the atomization temperature. The first preset time point is earlier than the time point corresponding to the heating body heating up to the atomization temperature. The time point corresponding to the start of heating of the heating body is defined as 0, and the first preset time point after the heating body starts heating is greater than 0. Optionally, the first preset time point is a time point between 1 second and 2 seconds after the heating body starts heating. According to Figure 1 It can be seen that before 1 second, the difference in temperature rise rate between when the aerosol-generating device contains a solid aerosol-generating product and when it does not contains a solid aerosol-generating product is not obvious. Comparing the temperature rise rate after 1 second can determine whether the aerosol-generating device contains a solid aerosol-generating product. For example, assuming the first preset time point is 1 second and the time point corresponding to the heating element reaching the atomization temperature is 6 seconds, the temperature-time curve of the heating element from 1 second to 6 seconds is obtained.

[0073] In one embodiment, the first preset time range is from the first preset time point after the heating body starts heating to the second preset time point after the heating body starts heating. The first preset time point is earlier than the second preset time point, and the second preset time point is earlier than the time point when the heating body is heated to the atomization temperature. The time point corresponding to when the heating body starts heating is defined as 0, and the first preset time point and the second preset time point after the heating body starts heating are both greater than 0. The second preset time point is less than the time point when the heating body is heated to the atomization temperature. Optionally, the first preset time point is a time point between 1 second and 2 seconds after the heating body starts heating; the second preset time point is a time point between 3 seconds and 4 seconds after the heating body starts heating. According to Figure 1 It can be seen that between 3 seconds and 4 seconds, the difference in temperature rise rate between the two states, namely, when the aerosol generating device contains a solid aerosol generating product and when the aerosol generating device does not contain a solid aerosol generating product, is obvious. Comparing the temperature rise rate after 1 second can realize the determination of whether the aerosol generating device contains a solid aerosol generating product. Comparing the temperature rise rate before 4 seconds can complete the determination process in a short time, which is conducive to improving the determination speed.

[0074] When step S11 adopts the second embodiment, the temperature rise rate of the heating body within several preset time intervals is compared with the corresponding preset rates within several preset time intervals in sequence; in response to the difference between the temperature rise rate of the heating body within a certain preset time interval and the corresponding preset rate within a certain preset time interval being greater than a threshold value, it is determined that the aerosol generating device does not accommodate a solid aerosol generating product, and the energy supplied to the heating body by the aerosol generating device is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body, thereby preventing the aerosol generating device from dry burning and reducing the user's usage risk.

[0075] Exemplarily, the preset time interval is 1 second. The heating rate of the heating body from 0 to 1 second after heating is obtained. The heating rate of the heating body from 0 to 1 second is compared with the corresponding preset rate. If the difference between the heating rate from 0 to 1 second and the corresponding preset rate is not greater than a threshold, the heating rate of the heating body from 1 to 2 seconds after heating is obtained. The heating rate of the heating body from 1 to 2 seconds after heating is further compared with the corresponding preset rate. If the difference between the heating rate from 1 to 2 seconds and the corresponding preset rate is not greater than the threshold, the heating rate of the heating body from 2 to 3 seconds after heating is obtained. The heating rate of the heating body from 2 to 3 seconds after heating is further compared with the corresponding preset rate. If the difference between the heating rate from 2 to 3 seconds and the corresponding preset rate is greater than the threshold, it is determined that the aerosol generating device does not contain a solid aerosol-generating article. The determination process is terminated, and the energy supplied to the heating body by the aerosol generating device is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body. As another example, if the difference between the heating element's heating rate during the 0-1 second period and its corresponding preset rate is greater than a threshold, then only the heating element's heating rate during a preset time interval needs to be obtained to determine that the aerosol-generating device does not contain a solid aerosol-generating product. If it is determined that the aerosol-generating device does not contain a solid aerosol-generating product, the energy supplied to the heating element by the aerosol-generating device is reduced or controlled to stop supplying energy to the heating element, thereby preventing the aerosol-generating device from drying out and reducing user risks.

[0076] It should be noted that different aerosol-generating devices have different temperature-time curves, and the time periods that clearly distinguish between the two states of the aerosol-generating device containing a solid aerosol-generating product and the state of the aerosol-generating device containing no solid aerosol-generating product are different. This application does not limit the number of consecutive preset time intervals obtained, as long as it can accurately determine that the aerosol-generating device does not have an aerosol-generating product inserted. The preset time interval is designed according to specific needs. For example, the preset interval time can be designed based on the material of the heating element and the temperature rise curve of the heating element. The present invention does not impose any restrictions on this.

[0077] The first embodiment of the control method for an aerosol-generating device provided in this application determines whether the aerosol-generating device contains a solid aerosol-generating product by determining that the difference between the heating rate of the heating element and a preset rate is greater than a threshold value. This simple determination method is used. Furthermore, when it is determined that the aerosol-generating device does not contain an aerosol-generating product, the energy supplied by the aerosol-generating device to the heating element is reduced or controlled to stop supplying energy to the heating element. This provides a protective effect and can avoid safety hazards (e.g., dry burning) caused by the aerosol-generating device operating without containing a solid aerosol-generating product. This improves the safety performance of the aerosol-generating device and increases the service life of the heating element.

[0078] See also Figure 4 , Figure 4 It is a flow chart of the second embodiment of the control method of the aerosol generating device provided in the present application.

[0079] This embodiment provides a method for controlling an aerosol generating device. The method for controlling an aerosol generating device includes the following steps.

[0080] Step S21: Obtain the heating rate of the heating body.

[0081] The implementation of step S21 in the second embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S11 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0082] Step S22: In response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold value, the energy supplied by the aerosol generating device to the heating body is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body; wherein the preset rate is the heating rate of the heating body when the aerosol generating device is in a state where a solid aerosol generating product is accommodated.

[0083] The implementation of step S22 in the second embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S12 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0084] Step S23: Sending a reminder signal.

[0085] Specifically, the reminder signal can be one or more of a light reminder, a sound reminder, a vibration reminder, and a text reminder, and can be designed based on specific needs. Upon determining that the aerosol-generating article is not inserted into the aerosol-generating device, a reminder signal is issued to alert the user, prompting them to take appropriate measures to eliminate safety hazards. The reminder signal can be sound, light, vibration, or other information, as long as it effectively alerts the user and allows them to respond promptly, and the present invention is not limited thereto.

[0086] See also Figure 5 , Figure 5 It is a flow chart of the third embodiment of the control method of the aerosol generating device provided in the present application.

[0087] This embodiment provides a method for controlling an aerosol generating device. The method for controlling an aerosol generating device includes the following steps.

[0088] Step S31: Obtain the heating rate of the heating body.

[0089] The implementation of step S31 in the third embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S11 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0090] Step S32: In response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold, reducing the energy delivered to the heating body by the aerosol generating device; wherein the preset rate is the heating rate of the heating body when the aerosol generating device contains a solid aerosol generating product.

[0091] The implementation of step S32 in the third embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S12 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0092] Step S33: Sending a reminder signal.

[0093] The implementation of step S33 in the third embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S23 in the second embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0094] Step S34: obtaining the heating rate of the heating body again.

[0095] Specifically, the method of obtaining the heating rate of the heating body again is the same as the implementation method of step S11 in the first embodiment of the control method of the aerosol generating device, and has similar technical effects, which will not be repeated.

[0096] Step S35: in response to the difference between the temperature increase rate of the heating body and the preset rate within the second preset time after the reminder signal is issued being greater than a threshold, controlling the aerosol generating device to stop supplying energy to the heating body.

[0097] Specifically, in step S32, in response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold, the energy delivered to the heating body by the aerosol generating device is reduced, and after issuing a reminder signal, the heating rate of the heating body is obtained again, and the heating rate of the heating body within the second preset time is compared with the preset rate.

[0098] The method of determining whether the difference between the heating rate of the heating body and the preset rate is greater than the threshold is the same as the implementation method of step S12 in the first embodiment of the control method of the aerosol generating device, and has similar technical effects, so it is not repeated here.

[0099] If, after the reminder signal is issued, the difference between the heating element's heating rate and the preset rate within the second preset time is greater than a threshold, indicating that the user has not placed the solid aerosol-generating article in the aerosol-generating device within the second preset time as indicated by the reminder signal, it can be inferred that the aerosol-generating device has been erroneously activated. In this case, the heating element is controlled to stop heating, thereby providing a protective function, avoiding safety issues caused by prolonged dry heating, and extending the service life of the heating element. The second preset time is greater than the time it takes the user to insert the solid aerosol-generating article into the aerosol-generating device.

[0100] See also Figure 6 , Figure 6 4 is a flow chart of the fourth embodiment of the control method for an aerosol generating device provided in the present application.

[0101] This embodiment provides a method for controlling an aerosol generating device. The method for controlling an aerosol generating device includes the following steps.

[0102] Step S41: obtaining the heating rate of the heating body.

[0103] The implementation of step S41 in the fourth embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S11 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0104] Step S42: In response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold, reducing the energy delivered to the heating body by the aerosol generating device; wherein the preset rate is the heating rate of the heating body when the aerosol generating device contains a solid aerosol generating product.

[0105] The implementation of step S42 in the fourth embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S12 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0106] Step S43: Sending a reminder signal.

[0107] The implementation of step S43 in the fourth embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S23 in the second embodiment of the method for controlling an aerosol generating device, and has similar technical effects, and will not be described in detail.

[0108] Step S44: obtaining the heating rate of the heating body again.

[0109] Specifically, the method of obtaining the heating rate of the heating body again is the same as the implementation method of step S11 in the first embodiment of the control method of the aerosol generating device, and has similar technical effects, which will not be repeated.

[0110] Step S45: in response to the difference between the heating rate of the heating body and the preset rate within the second preset time after the reminder signal is issued being less than or equal to the threshold, controlling the heating body to continue heating.

[0111] After the reminder signal is issued, the difference between the heating rate of the heating body and the preset rate within the second preset time is less than or equal to the threshold value, indicating that the heating rate of the heating body fluctuates around the preset rate, and the heating rate of the heating body is consistent with the preset rate, that is, the user inserts the aerosol generating product into the aerosol generating device within the second preset time according to the reminder signal. It can be inferred that the user has started the aerosol generating device, but has not had time to insert the solid aerosol generating product due to other factors. This avoids the user from starting the aerosol generating device again in a short time, which is beneficial to improving the user experience.

[0112] See also Figure 7 , Figure 7 It is a flow chart of the fifth embodiment of the control method of the aerosol generating device provided in the present application.

[0113] This embodiment provides a method for controlling an aerosol generating device. The method for controlling an aerosol generating device includes the following steps.

[0114] Step S51: obtaining the heating rate of the heating body.

[0115] The implementation of step S61 in the fifth embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S11 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects.

[0116] Step S52: In response to the difference between the heating rate of the heating body and the preset rate being greater than a threshold value, the energy supplied by the aerosol generating device to the heating body is reduced or the aerosol generating device is controlled to stop supplying energy to the heating body; wherein the preset rate is the heating rate of the heating body when the aerosol generating device is in a state where a solid aerosol generating product is accommodated.

[0117] The implementation of step S52 in the fifth embodiment of the method for controlling an aerosol generating device is the same as the implementation of step S12 in the first embodiment of the method for controlling an aerosol generating device, and has similar technical effects.

[0118] Step S53: In response to the difference between the heating rate of the heating body and the preset rate being less than or equal to a threshold, controlling the heating body to continue heating.

[0119] Specifically, if the difference between the heating rate of the heating body and the preset rate is less than or equal to a threshold value, it means that the heating rate of the heating body fluctuates around the preset rate. If the heating rate of the heating body is consistent with the preset rate, it is determined that an aerosol generating product is inserted into the aerosol generating device, and the heating body is controlled to continue heating.

[0120] See also Figure 8 , Figure 8 It is a structural diagram of the control circuit provided in an embodiment of the present application.

[0121] The control circuit includes a detection module 11 and a processing module 12. The detection module 11 is configured to detect the heating element's temperature rise rate, and the processing module 12 is configured to, in response to a difference between the heating element's temperature rise rate and a preset rate being greater than a threshold, reduce the energy supplied to the heating element by the aerosol generating device or control the aerosol generating device to stop supplying energy to the heating element. The preset rate is the temperature rise rate of the heating element when the aerosol generating device contains a solid aerosol-generating article. The control circuit is configured to implement the control method for an aerosol generating device provided in any of the aforementioned embodiments, thereby improving the safety performance of the aerosol generating device.

[0122] See also Figure 9 , Figure 9 It is a structural schematic diagram of the aerosol generating device provided in an embodiment of the present application.

[0123] The aerosol generating device includes a heating component 21 , a memory 22 and a processor 23 .

[0124] The memory 22 is used to store program instructions for implementing the control method of the aerosol-generating device described in any of the above-described embodiments. The processor 23 is used to execute the program instructions stored in the memory 22; that is, the processor 23 retrieves the program instructions stored in the memory 22 from the memory 22 to execute the control method of the aerosol-generating device described in any of the above-described embodiments.

[0125] The processor 23 may also be referred to as a CPU (Central Processing Unit). The processor 23 may be an integrated circuit chip having signal processing capabilities. The processor 23 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor may be a microprocessor or any conventional processor.

[0126] The memory 22 can be a memory stick, a TF card, etc., which can store all the information in the electronic device of the device, including the input raw data, computer programs, intermediate operation results and final operation results are all stored in the memory. It stores and retrieves information according to the location specified by the controller. With the memory 22, the device has a memory function and can ensure normal operation. The memory 22 can be divided into main memory (internal memory) and auxiliary memory (external memory) according to its purpose. There is also a classification method of dividing it into external memory and internal memory. External memory is usually a magnetic medium or an optical disk, etc., which can store information for a long time. Memory refers to the storage component on the motherboard, which is used to store the data and programs currently being executed, but is only used to temporarily store programs and data. If the power is turned off or the power is cut off, the data will be lost.

[0127] The heating assembly 21 has a receiving tank 211 for receiving the aerosol-generating article 20. In one embodiment, the heating assembly 21 includes a heater (not shown) and a temperature sensor (not shown). The processor 23 obtains the heating rate of the heater via the temperature sensor. In another embodiment, the heating assembly 21 includes a heater (not shown) having a TCR performance. The processor 23 is configured to obtain the resistance change rate of the heater and thereby determine the heating rate of the heater.

[0128] It should be noted that when the heating body has TCR performance, the heating body's heating rate can be obtained based on the resistance change rate of the heating body and the specific relationship between its own resistance and temperature, and then it can be judged whether the aerosol generating device contains a solid aerosol generating product 20; the resistance change rate of the heating body can also be used directly to judge whether the aerosol generating device contains a solid aerosol generating product 20.

[0129] See also Figure 10 , Figure 10 Schematic diagram of a computer-readable storage medium according to an embodiment of the present application. The computer-readable storage medium 30 stores program instructions 301 executable by a processor, and the program instructions 301 are used to implement the steps of the control method of the aerosol generating device according to any of the above embodiments.

[0130] In some embodiments, the functions or modules included in the device provided by the embodiments of the present disclosure can be used to execute the method described in the above method embodiments. The specific implementation can refer to the description of the above method embodiments. For the sake of brevity, it will not be repeated here.

[0131] The above description of the various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced with each other and will not be repeated herein for the sake of brevity.

[0132] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device implementation methods described above are only schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0133] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0135] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for controlling an aerosol generating device, wherein the aerosol generating device is used to atomize a solid aerosol generating product, the aerosol generating device comprising a heating element, characterized in that: include: Obtaining the heating rate of the heating body within a preset time; In response to a difference between the temperature increase rate of the heating body within the preset time and the preset rate of the heating body within the preset time being greater than a threshold value, reducing the energy supplied by the aerosol generating device to the heating body or controlling the aerosol generating device to stop supplying energy to the heating body; wherein the preset rate is the temperature increase rate of the heating body when the aerosol generating device is in a state where the solid aerosol generating article is accommodated; Send out a reminder signal; again obtaining the heating rate of the heating body within a second preset time; In response to the difference between the heating rate of the heating body within the second preset time after the reminder signal is issued and the preset rate of the heating body within the second preset time being greater than a threshold, the aerosol generating device is controlled to stop supplying energy to the heating body, and the second preset time is greater than the time used for the aerosol generating article to be inserted into the aerosol generating device.

2. The control method according to claim 1, characterized in that: The control method further includes: In response to a difference between a temperature increase rate of the heating body within the preset time and the preset rate of the heating body within the preset time being less than or equal to the threshold, the heating body is controlled to continue heating.

3. The control method according to claim 1, characterized in that: The step of obtaining the heating rate of the heating body within a preset time specifically includes: Acquire a temperature-time variation curve of the heating body within a first preset time range; Determining a heating rate of the heating body within the first preset time range based on the temperature-time variation curve; The preset time is within the first preset time range.

4. The control method according to claim 3, characterized in that: The first preset time range is from the time point corresponding to when the heating body starts heating to the time point corresponding to when the heating body heats up to the atomization temperature; or The first preset time range is from the first preset time point after the heating body starts heating to the time point when the heating body is heated to the atomization temperature; or The first preset time range is from a first preset time point after the heating body starts heating to a second preset time point after the heating body starts heating; The first preset time point is earlier than the second preset time point, and the second preset time point is earlier than the time point when the heating body is heated to the atomization temperature.

5. The control method according to claim 1, characterized in that: The step of obtaining the heating rate of the heating body within a preset time specifically includes: obtaining a temperature rise rate of the heating body in each of a plurality of consecutive preset time intervals after the heating body starts heating; In response to the difference between the heating rate of the heating body within the preset time and the preset rate of the heating body within the preset time being greater than a threshold, reducing the energy supplied by the aerosol generating device to the heating body or controlling the aerosol generating device to stop supplying energy to the heating body specifically includes: Comparing the heating rate of the heating body within a plurality of the preset time intervals with corresponding preset rates within a plurality of the preset time intervals in sequence; In response to the difference between the temperature rise rate of the heating body within a certain preset time interval and the corresponding preset rate within a certain preset time interval being greater than a threshold, the energy delivered by the aerosol generating device to the heating body is reduced or the aerosol generating device is controlled to stop delivering energy to the heating body.

6. The control method according to claim 1, characterized in that: The step of sending a reminder signal further includes: again obtaining the heating rate of the heating body within a second preset time; In response to the difference between the heating rate of the heating body within the second preset time after the reminder signal is issued and the preset rate of the heating body within the second preset time being less than or equal to a threshold, the heating body is controlled to continue heating.

7. A control circuit for implementing the control method of an aerosol generating device according to any one of claims 1 to 6, characterized in that: include: A detection module is used to obtain the heating rate of the heating body within a preset time; A processing module is used to reduce the energy delivered to the heating body by the aerosol generating device or control the aerosol generating device to stop delivering energy to the heating body in response to the difference between the temperature rise rate of the heating body within the preset time and the preset rate of the heating body within the preset time being greater than a threshold.

8. An aerosol generating device, characterized in that The device comprises a memory and a processor, wherein the memory stores program instructions, and the processor retrieves the program instructions from the memory to execute the control method of the aerosol generating device according to any one of claims 1 to 6.

9. The aerosol generating device according to claim 8, characterized in that The aerosol generating device further comprises a heating component; the heating component has a receiving tank, and the receiving tank is used to receive the solid aerosol generating product; The heating component includes a heater having a TCR performance, and the processor is used to obtain a resistance change rate of the heater; Alternatively, the heating component includes a heating body and a temperature sensor, and the processor obtains the heating rate of the heating body through the temperature sensor.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a control program, and when the control program is executed by a processor, it is used to implement the control method of the aerosol generating device according to any one of claims 1 to 6.

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