Aerosol generating method and apparatus, computer program product, and storage medium

Abstract

To provide an aerosol generation method and an aerosol generation device capable of solving a defect that it is difficult to determine an operation temperature in a conventional technology.SOLUTION: In a first stage, controlling heating of a first heating element to increase a temperature of the first heating element to a first temperature and then decrease the temperature to a second temperature, controlling heating of a second heating element to increase the temperature of the second heating element to a third temperature, the third temperature being lower than the second temperature, and in a second stage, controlling heating of the second heating element to increase the temperature of the second heating element from the third temperature to a fourth temperature; The temperature of the first heating element is lowered from the second temperature to the fifth temperature by controlling the heating of the first heating element, the fourth temperature is higher than the fifth temperature, and the time when the second heating element reaches the fourth temperature is earlier than the time when the first heating element reaches the fifth temperature.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of atomization devices, and in particular to aerosol generation methods, devices, computer program products and storage media. [Background technology]

[0002] When aerosol generated by an aerosol generating device is consumed by a person, the range of fluctuation in heating temperature during the heating process affects changes in the aerosol-forming substances including nicotine and (in some cases) flavorings.

[0003] In conventional aerosol generators, the temperature control means raises the temperature of the aerosol-forming substrate to the operating temperature and maintains that temperature until the end of the inhalation stage. However, this means has the drawback of making it difficult to determine the operating temperature. If the operating temperature is too high, the inhalation comfort and aerosol quality are good in the early inhalation stage, but impurities are likely to increase in the later inhalation stage due to excessive baking. On the other hand, if the operating temperature is too low, the inhalation comfort is insufficient in the early inhalation stage, resulting in a thin aerosol or no aerosol generation, and a poor inhalation comfort. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has as its technical object to solve the drawback of the prior art that it is difficult to determine the operating temperature. [Means for solving the problem]

[0005] The technical means adopted by the present invention to solve the technical problems are as follows:

[0006] The present invention provides an aerosol generating method, the method including:

[0007] In the first stage, the temperature of the first heating element is increased to a first temperature by controlling the heating of the first heating element and then decreased to a second temperature. In addition, the temperature of the second heating element is increased to a third temperature by controlling the heating of the second heating element. The third temperature is lower than the second temperature.

[0008] In the second stage, the second heating element is heated and controlled to increase the temperature of the second heating element from the third temperature to a fourth temperature. The first heating element is heated and controlled to decrease the temperature of the first heating element from the second temperature to a fifth temperature. The fourth temperature is higher than the fifth temperature. The second heating element reaches the fourth temperature earlier than the first heating element reaches the fifth temperature.

[0009] Preferably, controlling the heating of the first heating element to increase the temperature of the first heating element to a first temperature and then decrease the temperature to a second temperature includes the following.

[0010] That is, by controlling the heating of the first heating element, the temperature of the first heating element is raised to a first temperature during a first period of the first stage. Then, during a second period of the first stage, the temperature of the first heating element is either lowered from the first temperature to a second temperature, or the temperature of the first heating element is lowered to the second temperature first and then maintained at the second temperature. The first period is shorter than the second period.

[0011] Preferably, controlling the heating of the second heating element to raise the temperature of the second heating element to the third temperature includes the following.

[0012] That is, in the second period of the first stage, the second heating element is heated and controlled so that the temperature of the second heating element is first raised to the third temperature and then maintained at the third temperature, or the temperature of the second heating element continues to be raised to the third temperature.

[0013] Preferably, the step of controlling the heating of the second heating element to increase the temperature of the second heating element from the third temperature to a fourth temperature includes the following.

[0014] That is, by controlling the heating of the second heating element, the temperature of the second heating element is increased from the third temperature to a fourth temperature during the third period of the second stage. Also, during the fourth period of the second stage, the temperature of the second heating element is maintained at the fourth temperature or increased from the fourth temperature to a sixth temperature. The third period and the fourth period are two periods obtained by dividing the second stage using the first division method. The third period is shorter than the fourth period.

[0015] Preferably, lowering the temperature of the first heating element from the second temperature to a fifth temperature by controlling the heating of the first heating element includes the following.

[0016] That is, by controlling the heating of the first heating element, the temperature of the first heating element is lowered from the second temperature to the fifth temperature in the fifth period of the second stage. Also, in the sixth period of the second stage, the temperature of the first heating element is maintained at the fifth temperature or is increased from the fifth temperature to the seventh temperature. The fifth period and the sixth period are two periods obtained by dividing the second stage using the second division method. The fifth period is shorter than the sixth period. The end time of the third period is earlier than the end time of the fifth period. The fourth temperature is higher than the seventh temperature.

[0017] Preferably, the first temperature is between 150 and 300°C, and the second temperature is between 150 and 300°C.

[0018] Preferably, the difference between the second temperature and the first temperature is between 5 and 100°C.

[0019] Preferably, the third temperature is between 50 and 200°C, and the fourth temperature is between 150 and 300°C.

[0020] Preferably, controlling the heating of the first heating element includes controlling the heating of the first heating element by electromagnetic heating, and / or controlling the heating of the second heating element includes controlling the heating of the second heating element by electromagnetic heating.

[0021] The present invention further provides an aerosol generating device, which includes a first heating element, a second heating element, a first control unit, and a second control unit.

[0022] The first control unit is used to heat-control the first heating element in a first stage, thereby raising the temperature of the first heating element to a first temperature and then lowering it to a second temperature, and to heat-control the first heating element in a second stage, thereby lowering the temperature of the first heating element from the second temperature to a fifth temperature.

[0023] The second control unit is used to heat-control the second heating element in a first stage to raise the temperature of the second heating element to a third temperature, and to heat-control the second heating element in a second stage to raise the temperature of the second heating element from the third temperature to a fourth temperature. The third temperature is lower than the second temperature, and the fourth temperature is higher than the fifth temperature. The second heating element reaches the fourth temperature earlier than the first heating element reaches the fifth temperature.

[0024] Preferably, the first control unit is used to heat-control the first heating element to raise the temperature of the first heating element to a first temperature during a first period of the first stage, and to continue lowering the temperature of the first heating element from the first temperature to the second temperature during a second period of the first stage, or to first lower the temperature of the first heating element to the second temperature and then maintain it at the second temperature, and the first period is shorter than the second period.

[0025] Preferably, the second control unit is used to heat and control the second heating element during the second period of the first stage, either to first raise the temperature of the second heating element to a third temperature and then maintain it at the third temperature, or to continue raising the temperature of the second heating element to the third temperature.

[0026] Preferably, the second control unit is used to heat-control the second heating element to increase the temperature of the second heating element from the third temperature to a fourth temperature in a third period of the second stage, and to maintain the temperature of the second heating element at the fourth temperature or increase the temperature of the second heating element from the fourth temperature to a sixth temperature in a fourth period of the second stage. The third period and the fourth period are two periods obtained by dividing the second stage using a first division method. The third period is shorter than the fourth period.

[0027] Preferably, the first control unit is used to control the heating of the first heating element to lower the temperature of the first heating element from the second temperature to a fifth temperature in a fifth period of the second stage, and to maintain the temperature of the first heating element at the fifth temperature or raise the temperature of the first heating element from the fifth temperature to a seventh temperature in a sixth period of the second stage. The fifth period and the sixth period are two periods obtained by dividing the second stage using a second division method. The fifth period is shorter than the sixth period. The end time of the third period is earlier than the end time of the fifth period. The fourth temperature is higher than the seventh temperature.

[0028] Preferably, the first temperature is between 150 and 300°C.

[0029] The second temperature is between 150 and 300°C, and the difference between the second temperature and the first temperature is between 5 and 100°C.

[0030] The third temperature is between 50 and 200°C.

[0031] The fourth temperature is between 150 and 300°C.

[0032] Preferably, the first control unit includes: a first temperature detection module used to obtain a first temperature detection value by detecting the temperature of the first heating element in real time; a first main control module used to output a first control signal based on the first temperature detection value and the target temperature of each stage, wherein the target temperature of the first stage is the first temperature and the second temperature, and the target temperature of the second stage is the fifth temperature; and a first resonant module used to generate a corresponding first alternating magnetic field based on the first control signal, wherein the first heating element is located within the first alternating magnetic field.

[0033] Preferably, the first resonant module is a first parallel resonant circuit or a first series resonant circuit.

[0034] Preferably, the second control unit includes: a second temperature detection module used to obtain a second temperature detection value by detecting the temperature of the second heating element in real time; a second main control module used to output a second control signal based on the second temperature detection value and the target temperature of each stage, wherein the target temperature of the first stage is the third temperature and the target temperature of the second stage is the fourth temperature; and a second resonant module used to generate a corresponding second alternating magnetic field based on the second control signal, wherein the second heating element is located within the second alternating magnetic field.

[0035] Preferably, the second resonant module is a second parallel resonant circuit or a second series resonant circuit.

[0036] The present invention further comprises a computer program product including a processor which, when executing a computer program stored thereon, implements the steps of the aerosol generation method described above.

[0037] The present invention further comprises a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the aerosol generation method described above. [Effects of the Invention]

[0038] When implementing the technical means of the present invention, in the first stage, the temperature of the first heating element is first increased to a first temperature (the highest temperature point in the first stage) by controlling the heating of the first heating element. This allows the aerosol-forming substrate to be sufficiently preheated, making it easier to generate an aerosol. Next, the temperature of the first heating element is decreased from the first temperature to a second temperature. This prevents the aerosol-forming substrate from being baked at an excessively high temperature, thereby suppressing the generation of impurities and a burnt odor. At the same time, in the first stage, the temperature of the second heating element is increased to a third temperature by controlling the heating of the second heating element. This allows the second portion of the aerosol-forming substrate to be pre-baked, making it easier for the aerosol-forming substrate to generate an aerosol in the second stage. Furthermore, in the second stage, the temperature of the second heating element is increased to a fourth temperature by controlling the heating of the second heating element. At the same time, the temperature of the first heating element is decreased to a fifth temperature by controlling the heating of the first heating element. This ensures the comfort of inhalation and the quality of the aerosol during the inhalation period.

[0039] The present invention will be further described below in combination with the drawings and examples. [Brief explanation of the drawings]

[0040] [Figure 1] FIG. 1 is a flowchart of Example 1 of the aerosol generating method of the present invention. [Figure 2] FIG. 2 is a schematic structural diagram of two heating elements and an aerosol-forming substrate of an aerosol-generating device according to one embodiment of the present invention. [Figure 3A] FIG. 3A is a linear graph of the temperature settings of two heating elements in one embodiment of the present invention. [Figure 3B] FIG. 3B is a linear graph of the temperature distribution of two heating elements in one embodiment of the present invention. [Figure 4] FIG. 4 is a schematic structural diagram of two heating elements of an aerosol generating device according to one embodiment of the present invention. [Figure 5]FIG. 5 is a linear graph of the temperature distribution of two heating elements in one embodiment of the present invention. [Figure 6] FIG. 6 is a linear graph of the temperature distribution of two heating elements in one embodiment of the present invention. [Figure 7] FIG. 7 is a logical structural diagram of the aerosol generating device according to the first embodiment of the present invention. [Figure 8] FIG. 8 is a circuit diagram of the first control unit in the aerosol generating device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0041] The following describes the technical means of the embodiments of the present invention clearly and concisely, in combination with the drawings in the embodiments of the present invention. It goes without saying that the described embodiments are only some of the embodiments of the present invention, and do not represent all of the embodiments. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without performing any creative work are also within the scope of protection of the present invention.

[0042] FIG. 1 is a flowchart of a first embodiment of an aerosol generating method according to the present invention. First, it should be noted that the aerosol generating device is provided with at least two heat sources for heating an aerosol-forming substrate (e.g., a tobacco stick) during use. That is, the aerosol generating device includes at least a first heating element and a second heating element. Accordingly, the aerosol-forming substrate includes a first portion and a second portion. The first heating element is used to heat the first portion, and the second heating element is used to heat the second portion. For example, in a specific embodiment, as shown in FIG. 2, the aerosol-forming substrate is a single, integral unit. That is, the first portion 31 and the second portion 32 are not physically separated. However, it should be understood that in other embodiments, the first portion 31 and the second portion 32 may be two separate portions. The first heating element 21 and the second heating element 22 are cylindrical heating elements, respectively, and are disposed over the first portion 31 and the second portion 32 of the aerosol-forming substrate, respectively. However, it should be understood that in other embodiments, the first heating element 21 and the second heating element 22 may be a heating sheet, a heating pin, a heating rod, a heating wire or a cable, and may be inserted into the first part 31 and the second part 32 of the aerosol-forming substrate, respectively. Furthermore, the first heating element 21 and the second heating element 22 may be different sections of a single heating element, or may be two different heating elements that are physically spaced apart.

[0043] As shown in FIG. 1, the aerosol generating method of this embodiment includes the following steps.

[0044] Step S10: In the first stage, the temperature of the first heating element is increased to a first temperature by controlling the heating of the first heating element, and then decreased to a second temperature. The temperature of the second heating element is increased to a third temperature by controlling the heating of the second heating element. The third temperature is lower than the second temperature.

[0045] In this step, in the first stage, the temperatures of the first and second heating elements both start to rise from an initial temperature, which may be room temperature, such as 25 degrees or 0 degrees.

[0046] Step S20: In the second stage, by controlling the heating of the second heating element, the temperature of the second heating element is increased from the third temperature to the fourth temperature. Also, by controlling the heating of the first heating element, the temperature of the first heating element is decreased from the second temperature to the fifth temperature. The fourth temperature is higher than the fifth temperature. The time when the second heating element reaches the fourth temperature is earlier than the time when the first heating element reaches the fifth temperature.

[0047] In the technical means of this embodiment, by combining FIGS. 3A and 3B, 0 to t1 is the first stage, and t1 to t2 is the second stage. In the first stage (0 to t1), by controlling the heating of the first heating element, first, the temperature of the first heating element is increased to the first temperature T1 (the highest temperature point of the first stage). Thereby, sufficient preheating of the aerosol-forming substrate becomes possible, and it becomes easier to generate aerosol. Next, the temperature of the first heating element is continuously decreased from the first temperature T1 to the second temperature T2 (T2 < T1). Thereby, since the aerosol-forming substrate is not baked at an excessive high temperature, the generation of impurities and burnt odor is suppressed. At the same time, in the first stage (0 to t1), by controlling the heating of the second heating element, the temperature of the second heating element is increased to the third temperature T3 (T3 < T2). Thereby, since the second part of the aerosol-forming substrate can be baked in advance, it becomes easier for the second part to generate aerosol in the second stage. Also, in the second stage (t1 to t2), by controlling the heating of the second heating element, the temperature of the second heating element is increased to the fourth temperature T4 (the highest temperature point of the second stage). At the same time, by controlling the heating of the first heating element, the temperature of the first heating element is decreased to the fifth temperature T5 (T5 < T4). The time when the second heating element reaches the fourth temperature T4 is earlier than the time when the first heating element reaches the fifth temperature T5. Thereby, the inhalation feeling during the inhalation time and the quality of the aerosol are guaranteed.

[0048] Furthermore, the first temperature is between 150 and 300°C (inclusive), the second temperature is between 150 and 300°C (inclusive), the difference between the second temperature and the first temperature is between 5 and 100°C (inclusive), the third temperature is between 50 and 200°C (inclusive), and the fourth temperature is between 150 and 300°C (inclusive).

[0049] In a specific example, as shown in FIGS. 3A and 3B , the first temperature is 300°C, the second temperature is 240°C, the third temperature is 100°C, the fourth temperature is 290°C, and the fifth temperature is 200°C. Thus, in the first stage, the temperature of the first heating element is first increased to 300°C (the highest temperature point in the first stage) to sufficiently preheat a first portion of the aerosol-forming substrate. This makes it easier for the first portion to generate aerosol in the first stage. Next, the temperature is lowered to 240°C to prevent the first portion from being baked at an excessively high temperature, thereby suppressing the generation of impurities and a burnt odor. Furthermore, the temperature of the second heating element is increased to 100°C to preheat a second portion of the aerosol-forming substrate to generate aerosol in the second stage. In the second stage, the temperature of the second heating element is increased to 290°C to sufficiently heat the second portion to easily generate aerosol. In addition, the temperature of the first heating element is reduced to 200°C to prevent the first part from baking at an excessively high temperature, which can cause impurities or a burnt smell, thereby ensuring the comfort and quality of the aerosol during the inhalation period.

[0050] Furthermore, in an optional embodiment, controlling the heating of the first heating element in step S10 to raise the temperature of the first heating element to a first temperature and then lower it to a second temperature specifically includes the following: controlling the heating of the first heating element to raise the temperature of the first heating element to the first temperature during a first period of the first stage; and then, during a second period of the first stage, continuing to lower the temperature of the first heating element from the first temperature to a second temperature, or first lowering the temperature of the first heating element to the second temperature and then maintaining it at the second temperature; and the first period is shorter than the second period.

[0051] In a specific example, as shown in FIG. 3B , 0 to t11 is the first period of the first stage, and t11 to t1 is the second period of the first stage. Because the first period (e.g., 10 seconds) is shorter than the second period (e.g., 2 minutes), during the first period of the first stage, the temperature of the first heating element can be rapidly increased to the first temperature T1 to rapidly preheat the first portion of the aerosol-forming substrate. This prevents the first portion from being sufficiently baked during the initial stage, resulting in poor draw comfort and insufficient aerosol concentration. Furthermore, during the second period of the first stage, the temperature of the first heating element continues to decrease from the first temperature T1 to the second temperature T2. This prevents the first portion from generating impurities or a burnt odor due to an excessively high temperature.

[0052] In another specific example, as shown in FIG. 5, 0 to t11 is a first period of the first stage, and t11 to t1 is a second period of the first stage. Because the first period (e.g., 10 seconds) is shorter than the second period (e.g., 2 minutes), during the first period of the first stage, the temperature of the first heating element can be rapidly raised to a first temperature T1, thereby rapidly preheating a first portion of the aerosol-forming substrate. This prevents poor draw comfort and aerosol concentration due to insufficient baking during the initial stage. Furthermore, during the second period of the first stage, the temperature of the first heating element is first lowered to a second temperature T2 during the period from t11 to t12, and then maintained at the second temperature T2 during the period from t12 to t1. This also prevents the first portion from generating impurities or a burnt odor due to an excessively high temperature.

[0053] Furthermore, in an optional embodiment, controlling the heating of the second heating element in step S10 to raise the temperature of the second heating element to a third temperature includes the following: during the second period of the first stage, controlling the heating of the second heating element to first raise the temperature of the second heating element to a third temperature and then maintain the temperature at the third temperature, or continuing to raise the temperature of the second heating element to the third temperature.

[0054] In this embodiment, heating control of the second heating element is initiated while the temperature of the first heating element continues to decrease from the first temperature T1 to the second temperature T2, i.e., during the second period. For example, as shown in FIG. 3A , heating control of the second heating element is initiated at time t13 of the second period (time t13 is within the second period), thereby first raising the temperature to the third temperature T3 and then maintaining it at the third temperature T3. This prevents the first portion of the aerosol-forming substrate from generating impurities or a burnt odor due to an excessively high temperature (this is also because heat from the second portion of the aerosol-forming substrate is transferred to the first portion when heating of the second heating element begins). It also prevents the second portion from generating aerosol too early, resulting in an excessively low concentration of the aerosol generated by the second portion during the later stages of inhalation, due to the aerosol-generating substance being consumed too quickly. Of course, in other embodiments, the temperature of the second heating element may continue to increase to the third temperature.

[0055] Regarding the heat generation graphs of the second heating element in the first stage in Figures 3A and 3B, it is worth noting that although the temperature of the second heating element in Figure 3B begins to rise at the beginning of the first period, this is a passive temperature increase due to heat conduction from the first heating element. Therefore, the temperature increase during the second period is only due to active heating of the second heating element. For example, in the embodiment shown in Figure 4, the first heating element 21 and the second heating element 22 have an integrated tubular structure. Furthermore, the first heating element 21 and the second heating element 22 are partially spaced apart via a plurality of holes 23. However, in other embodiments, the partial spacing may be achieved via grooves. This reduces the interaction between the temperature fields of the first heating element 21 and the second heating element 22, making it easier to independently control the temperature of the first heating element 21 or the second heating element 22. Furthermore, the relative positions of the first heating element 21 and the second heating element 22 are relatively clear, facilitating manufacturing and installation.

[0056] Furthermore, in an alternative embodiment, controlling the heating of the second heating element to increase the temperature of the second heating element from the third temperature to the fourth temperature includes the following: controlling the heating of the second heating element to increase the temperature of the second heating element from the third temperature to the fourth temperature in a third period of the second stage; and maintaining the temperature of the second heating element at the fourth temperature or increasing the temperature of the second heating element from the fourth temperature to a sixth temperature in a fourth period of the second stage. The third period and the fourth period are two periods obtained by dividing the second stage using a first division method. The third period is shorter than the fourth period.

[0057] In a specific embodiment, as shown in FIG. 5 , the second stage (t1 to t2) may be divided into a third period (t1 to t21) and a fourth period (t21 to t2) using a first division method. The third period is shorter than the fourth period. Heating control is performed on the second heating element in the second stage, raising the temperature during the third period from a third temperature T3 to a fourth temperature T4 and maintaining the temperature during the fourth period at the fourth temperature T4. Because the third period is shorter than the fourth period, rapid preheating of the second heating element can avoid poor draw comfort and insufficient aerosol concentration due to insufficient baking of the second portion of the aerosol-forming substrate.

[0058] In a specific example, as shown in FIG. 6 , the second stage (t1 to t2) is also divided into a third period (t1 to t21) and a fourth period (t21 to t2). The third period is shorter than the fourth period. For the second heating element in the second stage, heating control is performed to raise the temperature during the third period from the third temperature T3 to the fourth temperature T4, and to raise the temperature during the fourth period from the fourth temperature T4 to the sixth temperature T6. Because the third period is shorter than the fourth period, rapid preheating of the second heating element can avoid insufficient smoking comfort and aerosol concentration due to insufficient baking of the second portion of the aerosol-forming substrate. Furthermore, because the second heating element also heats up during the fourth period, insufficient smoking comfort and aerosol concentration due to insufficient baking can also be avoided in the subsequent heating process.

[0059] Furthermore, in a selective embodiment, reducing the temperature of the first heating element from the second temperature to the fifth temperature by controlling the heating of the first heating element includes the following. That is, by controlling the heating of the first heating element, in the fifth period of the second stage, the temperature of the first heating element is reduced from the second temperature to the fifth temperature. Also, in the sixth period of the second stage, the temperature of the first heating element is maintained at the fifth temperature or the temperature of the first heating element is increased from the fifth temperature to the seventh temperature. The fifth period and the sixth period are two periods obtained by partitioning the second stage in a second partitioning method. And the fifth period is shorter than the sixth period. And the fourth temperature is higher than the seventh temperature. In addition, in the process of the temperature of the first heating element decreasing from the second temperature to the fifth temperature in the fifth period, it may continue to decrease at the same decreasing speed, or first slowly decrease at the first decreasing speed and then rapidly decrease at the second decreasing speed.

[0060] In a specific embodiment, as shown in FIG. 5, the second stage (t1 to t2) may be partitioned into a fifth period (t1 to t22) and a sixth period (t22 to t2) by a second partitioning method. And the fifth period is shorter than the sixth period. The end time of the third period is earlier than the end time of the fifth period, i.e., t21 < t22. For the first heating element in the second stage, by performing heating control, the temperature in the fifth period is reduced from the second temperature T2 to the fifth temperature T5, and the temperature in the sixth period is maintained at the sixth temperature T6. Thereby, it is possible to avoid a situation where the second part of the aerosol-forming substrate generates impurities or a burnt odor due to excessive high-temperature baking (this is also because when the first heating element is heated, the heat of the first part of the aerosol-forming substrate is transmitted to the second part).

[0061] In a specific embodiment, as shown in FIG. 6, similarly in this case, the second stage (t1 to t2) is partitioned into a fifth period (t1 to t22) and a sixth period (t22 to t2). And the fifth period is shorter than the sixth period. The end time of the third period is earlier than the end time of the fifth period, that is, t21 < t22. For the first heating element in the second stage, by performing heating control, the temperature in the fifth period is decreased from the second temperature T2 to the fifth temperature T5, and the temperature in the sixth period is increased from the fifth temperature T5 to the sixth temperature T6. Thereby, it becomes possible to avoid a situation where the second part of the aerosol generation substrate generates impurities and a burnt odor due to excessive high-temperature baking. Also, since the first heating element raises the temperature even in the sixth period, it is also possible to avoid the problem of poor draw and insufficient aerosol concentration due to insufficient baking of the second part of the aerosol generation substrate.

[0062] Furthermore, in a selective embodiment, the first heating element may be controlled by electromagnetic heating, and / or the second heating element may be controlled by electromagnetic heating. And for the control of the two heating elements, an individual control method may be used, or an integrated control method may be used.

[0063] In a specific embodiment, when controlling the heating of the first heating element by electromagnetic heating, specifically, it includes the following.

[0064] By detecting the temperature of the first heating element in real time, a first temperature detection value is obtained.

[0065] Based on the first temperature detection value of the first heating element and the target temperature of each stage, a first control signal is output. The target temperature of the first stage of the first heating element is the first temperature and the second temperature, and the target temperature of the second stage is the fifth temperature.

[0066] Based on the first control signal, a corresponding first alternating magnetic field is generated. And the first heating element is located within the first alternating magnetic field.

[0067] Correspondingly, when controlling the heating of the second heating element by electromagnetic heating, specifically, it includes the following.

[0068] The temperature of the second heating element is detected in real time to obtain a second detected temperature value.

[0069] A second control signal is output based on the second temperature detection value of the second heating element and the target temperature of each stage, where the target temperature of the second heating element in the first stage is the third temperature and the target temperature of the second stage is the fourth temperature.

[0070] A corresponding second alternating magnetic field is generated based on the second control signal, and the second heating element is located within the second alternating magnetic field.

[0071] In the above embodiment, thermistors may be provided on the surfaces of the first and second heating elements, respectively, and the voltage values ​​of the thermistors may be detected to calculate the resistance values ​​of the thermistors to obtain real-time temperature detection signals of the first and second heating elements. In addition, two resonant circuits may be provided to generate first and second alternating magnetic fields, respectively. The coils of the resonant circuits can generate alternating electromagnetic fields. Furthermore, by placing the two heating elements in the corresponding electromagnetic fields, induced eddy currents are generated on the surfaces, causing the heating elements to heat up. Furthermore, a main control module controls the vibration intensity of the resonant circuits based on the detected temperature detection signals of the two parts using a software algorithm.

[0072] Of course, the manner in which the first and second heating elements heat the aerosol-forming substrate may be infrared radiation heating, resistance heating, etc., and is not limited thereto.

[0073] FIG. 7 is a logical structural diagram of a first embodiment of an aerosol-generating device according to the present invention. The aerosol-generating device 100 in this embodiment includes a first heating element 21, a second heating element 22, a first control unit 11, and a second control unit 12. The aerosol-forming substrate includes a first portion and a second portion. The first heating element 21 is used to heat the first portion, and the second heating element 22 is used to heat the second portion. For example, in a specific embodiment, as shown in FIG. 2, the aerosol-forming substrate is a single, integral unit. That is, the first portion 31 and the second portion 32 are not physically separated. However, it should be understood that in other embodiments, the first portion 31 and the second portion 32 may be two separate portions. The first heating element 21 and the second heating element 22 are cylindrical heating elements, respectively, and are disposed over the first portion 31 and the second portion 32 of the aerosol-forming substrate, respectively. However, it will be appreciated that in other embodiments, the first heating element 21 and the second heating element 22 may be a heating sheet, a heating pin, a heating rod, a heating wire or a cable, and may be inserted into the first part 31 and the second part 32 of the aerosol-forming substrate, respectively.

[0074] In the embodiment shown in FIG. 7 , in a first stage, the first control unit 11 controls the heating of the first heating element 21 to increase the temperature of the first heating element 21 to a first temperature and then decrease it to a second temperature. In a second stage, the first control unit 11 controls the heating of the first heating element 21 to decrease the temperature of the first heating element 21 from the second temperature to a fifth temperature. Meanwhile, in the first stage, the second control unit 12 controls the heating of the second heating element 22 to increase the temperature of the second heating element 22 to a third temperature. In a second stage, the second control unit 12 controls the heating of the second heating element 22 to increase the temperature of the second heating element 22 from the third temperature to a fourth temperature. The third temperature is lower than the second temperature, and the fourth temperature is higher than the fifth temperature. The second heating element reaches the fourth temperature earlier than the first heating element reaches the fifth temperature.

[0075] Furthermore, the first control unit 11 controls the heating of the first heating element to raise the temperature of the first heating element to a first temperature during a first period of the first stage. Then, during a second period of the first stage, the first control unit 11 continues to lower the temperature of the first heating element from the first temperature to the second temperature, or lowers the temperature of the first heating element to the second temperature first and then maintains it at the second temperature. The first period is shorter than the second period.

[0076] Furthermore, during the second period of the first stage, the second control unit 12 controls the heating of the second heating element, either first raising the temperature of the second heating element to a third temperature and then maintaining it at the third temperature, or continuing to raise the temperature of the second heating element to the third temperature.

[0077] Furthermore, the second control unit 12 controls the heating of the second heating element to increase the temperature of the second heating element from the third temperature to a fourth temperature during a third period of the second stage. Also, during a fourth period of the second stage, the second control unit 12 maintains the temperature of the second heating element at the fourth temperature or increases the temperature of the second heating element from the fourth temperature to a sixth temperature. The third period and the fourth period are two periods obtained by dividing the second stage using the first division method. The third period is shorter than the fourth period.

[0078] Furthermore, the first control unit 11 controls the heating of the first heating element to lower the temperature of the first heating element from the second temperature to the fifth temperature in a fifth period of the second stage. Also, in a sixth period of the second stage, the first control unit 11 maintains the temperature of the first heating element at the fifth temperature or raises the temperature of the first heating element from the fifth temperature to a seventh temperature. The fifth period and the sixth period are two periods obtained by dividing the second stage using the second division method. The fifth period is shorter than the sixth period. The end time of the third period is earlier than the end time of the fifth period. The fourth temperature is higher than the seventh temperature.

[0079] Furthermore, the first temperature is between 150 and 300°C, and the second temperature is between 150 and 300°C. The difference between the second temperature and the first temperature is between 5 and 100°C. The third temperature is between 50 and 200°C, and the fourth temperature is between 150 and 300°C.

[0080] Furthermore, the first control unit 11 includes a first temperature detection module, a first main control module, and a first resonant module. The first temperature detection module is used to obtain a first temperature detection value by detecting the temperature of the first heating element in real time. The first main control module is used to output a first control signal based on the first temperature detection value and target temperatures for each stage. The target temperatures for the first stage are the first temperature and the second temperature, and the target temperature for the second stage is the fifth temperature. The first resonant module is used to generate a corresponding first alternating magnetic field based on the first control signal. The first heating element is located within the first alternating magnetic field. The first resonant module is, for example, a first parallel resonant circuit.

[0081] The second control unit 12 further includes a second temperature detection module, a second main control module, and a second resonant module. The second temperature detection module is used to detect the temperature of the second heating element in real time to obtain a second temperature detection value. The second main control module is used to output a second control signal based on the second temperature detection value and a target temperature for each stage. The target temperature for the first stage is the third temperature, and the target temperature for the second stage is the fourth temperature. The second resonant module is used to generate a corresponding second alternating magnetic field based on the second control signal. The second heating element is located within the second alternating magnetic field. The second resonant module is, for example, a second parallel resonant circuit.

[0082] Of course, in other embodiments, the first resonant module may be a first series resonant circuit and the second resonant module may be a second series resonant circuit.

[0083] FIG. 8 is a circuit diagram of the first control unit in the aerosol generator of the present invention. In this first control unit, a resistor R2 is connected in series with a thermistor RT1 provided on the surface of the first heating element to form a first temperature detection module. The first temperature detection module measures the voltage of the thermistor RT1 and calculates its resistance, thereby obtaining a first detected temperature value of the first heating element. The detected first detected temperature value is transmitted to the first main control module. Furthermore, an inductor coil L1, a capacitor C1, and a MOSFET Q1 form a single-transistor parallel resonant circuit. During operation, a battery voltage (BAT+) is connected to the single-transistor parallel resonant circuit, causing an AC current to flow through the inductor coil L1. This AC current generates an alternating electromagnetic field in the inductor coil L1. Because the first heating element is located within this electromagnetic field, the hysteresis effect within the first heating element causes the first heating element to heat up. Furthermore, if the first heating element is made of a conductive material, induced eddy currents are generated on the surface of the first heating element, causing the first heating element to heat up. The main control module controls the vibration strength of the resonant circuit based on the first temperature detection value using a software algorithm, thereby controlling the temperature of the first heating element to change according to a predetermined temperature curve.

[0084] It should be understood that the circuit configuration of the second control unit is similar to that of FIG. 8, and therefore will not be described in detail here.

[0085] The invention further comprises a computer program product including a processor which, when executing a computer program stored thereon, implements the steps of the aerosol generation method described above.

[0086] It should be understood that in the embodiments of the present application, a processor may be a Central Processing Unit (CPU), other general-purpose processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor, any general processor, etc.

[0087] Furthermore, when the processor executes the computer program, it can implement the steps of any of the aerosol generating methods provided in the embodiments of the present invention, thereby realizing the beneficial effects that can be achieved by any of the aerosol generating methods provided in the embodiments of the present invention. For details, please refer to the above-mentioned embodiments, and therefore, detailed description will not be given here.

[0088] The present invention further comprises a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described aerosol generation method.

[0089] It should be understood that the storage medium includes various computer storage media capable of storing program code, such as a USB, a portable hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk. Furthermore, the computer program stored in the storage medium, when executed, can implement the steps of any of the aerosol generating methods provided in the embodiments of the present invention, thereby achieving the beneficial effects achievable by any of the aerosol generating methods provided in the embodiments of the present invention. For details, please refer to the above-mentioned embodiments, and a detailed description will not be provided here.

[0090] The above description is merely a preferred embodiment of the present invention and does not limit the present invention. Those skilled in the art may have various modifications and variations to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. In the first stage, the temperature of the first heating element is increased to a first temperature and then decreased to a second temperature by controlling the heating of the first heating element, and the temperature of the second heating element is increased to a third temperature by controlling the heating of the second heating element, the third temperature being lower than the second temperature; In a second stage, the second heating element is heated and controlled to increase the temperature of the second heating element from the third temperature to a fourth temperature, and the first heating element is heated and controlled to decrease the temperature of the first heating element from the second temperature to a fifth temperature, the fourth temperature being higher than the fifth temperature; and the second heating element reaches the fourth temperature earlier than the first heating element reaches the fifth temperature; An aerosol generating method comprising:

2. By controlling the heating of the first heating element, the temperature of the first heating element is increased to a first temperature and then decreased to a second temperature, by controlling the heating of a first heating element, the temperature of the first heating element is increased to a first temperature in a first period of the first stage, and the temperature of the first heating element is continuously decreased from the first temperature to a second temperature in a second period of the first stage, or the temperature of the first heating element is decreased from the first temperature to the second temperature first and then maintained at the second temperature; 2. The aerosol generating method according to claim 1, wherein the first period is shorter than the second period.

3. By controlling the heating of the second heating element, the temperature of the second heating element is increased to the third temperature, The aerosol generating method described in claim 2, characterized in that during the second period of the first stage, the second heating element is heated and controlled so that the temperature of the second heating element is first raised to a third temperature and then maintained at the third temperature, or the temperature of the second heating element is continued to be raised to the third temperature.

4. The heating control of the second heating element to raise the temperature of the second heating element from the third temperature to the fourth temperature includes: by controlling the heating of the second heating element, the temperature of the second heating element is increased from the third temperature to a fourth temperature in a third period of the second stage, and the temperature of the second heating element is maintained at the fourth temperature or increased from the fourth temperature to a sixth temperature in a fourth period of the second stage; 2. The aerosol generating method according to claim 1, wherein the third period and the fourth period are two periods obtained by dividing the second stage by a first division method, and the third period is shorter than the fourth period.

5. By controlling the heating of the first heating element, the temperature of the first heating element is reduced from the second temperature to a fifth temperature, by controlling the heating of the first heating element, in a fifth period of the second stage, the temperature of the first heating element is reduced from the second temperature to a fifth temperature, and in a sixth period of the second stage, the temperature of the first heating element is maintained at the fifth temperature or the temperature of the first heating element is increased from the fifth temperature to a seventh temperature; The fifth period and the sixth period are two periods obtained by dividing the second stage by a second division method, and the fifth period is shorter than the sixth period, the end time of the third period is earlier than the end time of the fifth period, and the fourth temperature is higher than the seventh temperature.

5. The aerosol generating method according to claim 4.

6. 6. The aerosol generating method according to claim 1, wherein the first temperature is between 150 and 300°C, and the second temperature is between 150 and 300°C.

7. 7. The aerosol generating method according to claim 6, wherein the difference between the second temperature and the first temperature is between 5 and 100°C.

8. 6. The aerosol generating method according to claim 1, wherein the third temperature is between 50 and 200°C, and the fourth temperature is between 150 and 300°C.

9. The heating control of the first heating element is controlling the heating of the first heating element by an electromagnetic heating method; and / or The heating control of the second heating element is 6. The aerosol generating method according to claim 1, further comprising controlling the heating of the second heating element by an electromagnetic heating method.

10. The device includes a first heating element, a second heating element, a first control unit, and a second control unit, the first control unit is used to heat-control the first heating element in a first stage to increase the temperature of the first heating element to a first temperature and then decrease the temperature to a second temperature, and to heat-control the first heating element in a second stage to decrease the temperature of the first heating element from the second temperature to a fifth temperature; the second control unit is used to heat-control the second heating element in a first stage to raise the temperature of the second heating element to a third temperature, and to heat-control the second heating element in a second stage to raise the temperature of the second heating element from the third temperature to a fourth temperature; An aerosol generating device characterized in that the third temperature is lower than the second temperature, the fourth temperature is higher than the fifth temperature, and the time at which the second heating element reaches the fourth temperature is earlier than the time at which the first heating element reaches the fifth temperature.

11. the first control unit is used to heat-control the first heating element, thereby increasing the temperature of the first heating element to a first temperature during a first period of the first stage, and to continue decreasing the temperature of the first heating element from the first temperature to the second temperature during a second period of the first stage, or to first decrease the temperature of the first heating element to the second temperature and then maintain it at the second temperature; 11. The aerosol generating device according to claim 10, wherein the first period is shorter than the second period.

12. The aerosol generating device described in claim 11, characterized in that the second control unit is used to heat and control the second heating element during the second period of the first stage, thereby first raising the temperature of the second heating element to a third temperature and then maintaining it at the third temperature, or continuing to raise the temperature of the second heating element to the third temperature.

13. the second control unit is used to heat-control the second heating element, thereby increasing the temperature of the second heating element from the third temperature to a fourth temperature in a third period of the second stage, and to maintain the temperature of the second heating element at the fourth temperature or increase the temperature of the second heating element from the fourth temperature to a sixth temperature in a fourth period of the second stage; The aerosol generating device according to claim 10, wherein the third period and the fourth period are two periods obtained by dividing the second stage in a first division manner, and the third period is shorter than the fourth period.

14. the first control unit is used to control the heating of the first heating element, thereby lowering the temperature of the first heating element from the second temperature to a fifth temperature in a fifth period of the second stage, and maintaining the temperature of the first heating element at the fifth temperature or raising the temperature of the first heating element from the fifth temperature to a seventh temperature in a sixth period of the second stage; The aerosol generating device of claim 13, wherein the fifth period and the sixth period are two periods obtained by dividing the second stage using a second division method, and the fifth period is shorter than the sixth period, the end time of the third period is earlier than the end time of the fifth period, and the fourth temperature is higher than the seventh temperature.

15. the first temperature is between 150 and 300°C; the second temperature is between 150 and 300°C, and the difference between the second temperature and the first temperature is between 5 and 100°C; the third temperature is between 50 and 200°C; 15. The aerosol generating device according to claim 10, wherein the fourth temperature is between 150 and 300°C.

16. The first control unit a first temperature detection module used to obtain a first temperature detection value by detecting the temperature of the first heating element in real time; a first main control module, which is used to output a first control signal based on the first temperature detection value and a target temperature of each stage, wherein the target temperature of the first stage is the first temperature and the second temperature, and the target temperature of the second stage is the fifth temperature; An aerosol generating device as described in any one of claims 10 to 14, characterized in that it includes a first resonant module used to generate a corresponding first alternating magnetic field based on the first control signal, and the first heating element is located within the first alternating magnetic field.

17. 17. The aerosol generating device according to claim 16, wherein the first resonant module is a first parallel resonant circuit or a first series resonant circuit.

18. The second control unit a second temperature detection module used to obtain a second temperature detection value by detecting the temperature of the second heating element in real time; a second main control module for outputting a second control signal according to the second temperature detection value and a target temperature of each stage, the target temperature of the first stage being the third temperature, and the target temperature of the second stage being the fourth temperature; An aerosol generating device as described in any one of claims 10 to 14, characterized in that it includes a second resonant module used to generate a corresponding second alternating magnetic field based on the second control signal, and the second heating element is located within the second alternating magnetic field.

19. 19. The aerosol generating device according to claim 18, wherein the second resonant module is a second parallel resonant circuit or a second series resonant circuit.

20. 1. A computer program product including a processor, A computer program product characterized in that the processor, when executing a computer program stored therein, implements the steps of the aerosol generation method according to any one of claims 1 to 5.

21. A storage medium on which a computer program is stored, A storage medium characterized in that the computer program, when executed by a processor, implements the steps of the aerosol generation method according to any one of claims 1 to 5.

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