Heating control method, aerosol generating device and computer readable storage medium

Abstract

The invention provides a heating control method, an aerosol generation device and a computer readable storage medium, and the control method comprises the steps: in a heating stage, obtaining a first heating power and a first heating duration of an aerosol generation product in each atomization stage, and determining a first heating power of the aerosol generation product in each atomization stage; the first heating power generates atomization energy within the first heating duration; in response to the condition that the difference value between the sum of atomization energy generated in multiple atomization stages in the heating stage and the preset total atomization energy of the aerosol generating product is smaller than or equal to a first threshold value, the power output function of the aerosol generating device is controlled, according to the aerosol generating device, the power output function of the aerosol generating device is reduced, the power output function of the aerosol generating device is locked, and the like, so that aerosol with unexpected characteristics can be prevented from being generated when atomization media in the aerosol generating product are not enough and atomization continues to be carried out, the problem of dry burning is avoided, and poor user experience is brought.

Description

Technical Field

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

[0002] The aerosol generating device is used to heat and atomize the aerosol generating product containing the atomizing medium to generate an aerosol that can be used by the user. It can be widely used in the fields of medical treatment, beauty, leisure smoking, etc.

[0003] In the related art, an aerosol generating device is proposed, which is used to heat a pre-filled capsule containing an aerosol medium (aerosol generating product), so that the capsule can be disposable to solve the problem of user cleaning. However, this solution also has the problem of being unable to detect the remaining content of the aerosol medium in the capsule, which easily causes a dry burning problem in the final stage, affecting the user experience. Summary of the invention

[0004] The present application provides a heating control method, an aerosol generating device and a computer-readable storage medium, which can solve the problem that the aerosol generating device is prone to dry burning in the final stage of heating an aerosol generating product.

[0005] To solve the above problems, a technical solution provided in the present application is: providing a heating control method, comprising: in a heating stage, obtaining a first heating power and a first heating duration for an aerosol generating product in each atomization stage, and determining, in each of the atomization stages, the atomization energy generated by the first heating power within the first heating duration; in response to the difference between the sum of the atomization energies generated by multiple atomization stages in the heating stage and a preset total atomization energy of the aerosol generating product being less than or equal to a first threshold, controlling the power output function of the aerosol generating device.

[0006] In one embodiment, obtaining the first heating power and the first heating time for the aerosol generating product in each atomization stage includes: obtaining the basic atomization power corresponding to each moment in each atomization stage, and determining the first heating power corresponding to each moment in the atomization stage based on the basic atomization power; and obtaining the first heating time for heating the aerosol generating product in each atomization stage using the first heating power corresponding to each moment.

[0007] In one embodiment, the atomization basic power is determined based on the atomization base value power, the first proportionality coefficient and the time corresponding to the current atomization stage.

[0008] In one embodiment, the heating stage also includes at least one insulation stage; obtaining the first heating power and the first heating duration of the aerosol generating product in each atomization stage, and also includes: obtaining the insulation time of the insulation stage before each current atomization stage; determining the first compensation power corresponding to each moment of each current atomization stage based on the insulation time and the atomization basic power, and determining the first heating power corresponding to each moment of each current atomization stage based on the first compensation power.

[0009] In one embodiment, determining the first compensation power at each moment corresponding to each current atomization stage based on the heat preservation time and the atomization basic power includes: in response to the heat preservation time being greater than or equal to a second threshold, determining the first compensation power at each moment corresponding to the current atomization stage based on the atomization basic power corresponding to each moment in the current atomization stage; in response to the heat preservation time being less than the second threshold, determining the first compensation power at each moment corresponding to the current atomization stage based on the atomization basic power corresponding to each moment in the current atomization stage, the heat preservation time and the second threshold.

[0010] In one embodiment, the insulation stage includes a first insulation stage and a second insulation stage; in response to the cumulative duration of the heating stage being less than or equal to a third threshold, the insulation stage is the first insulation stage, and the aerosol generating product is insulated with a first insulation power; in response to the cumulative duration of the heating stage being greater than the third threshold, the insulation stage is the second insulation stage, and the aerosol generating product is insulated with a second insulation power; wherein the first insulation power is greater than the second insulation power, and the first insulation power is less than the atomization basic power.

[0011] In one embodiment, determining the first heating power corresponding to each moment of each current atomization stage based on the first compensation power includes: in response to the sum of the first heating durations in all the atomization stages before the current atomization stage being less than or equal to a fourth threshold, using the first compensation power at each moment corresponding to the current atomization stage as the first heating power at each moment corresponding to the current atomization stage; in response to the sum of the first heating durations in all the atomization stages before the current atomization stage being greater than the fourth threshold and less than or equal to a fifth threshold, determining the first heating power based on the first compensation power at each moment corresponding to the current atomization stage and a second proportional coefficient.

[0012] In one embodiment, the heating control method further comprises: in response to the sum of the first heating durations in all the atomization stages before the current atomization stage being greater than a fifth threshold, locking a power output stop function of the aerosol generating device.

[0013] In one embodiment, before the heating stage, the heating control method further includes: in a preheating stage, preheating the aerosol generating product with a first preheating power for a first preheating time; wherein the first preheating power is greater than or equal to the first heating power.

[0014] In one embodiment, the heating control method further comprises: after locking the power output function of the aerosol generating device, in response to replacing the aerosol generating article, unlocking the power output function of the aerosol generating device.

[0015] To solve the above problems, another technical solution provided by the present application is: to provide an aerosol generating device, comprising: an atomization unit for heating an aerosol generating product; an energy storage unit; connected to the atomization unit; a control unit connected to the energy storage unit and the atomization unit, the control unit being used to control each atomization stage of the energy storage unit in the heating stage, providing a first heating power to the atomization unit to heat the aerosol generating product, and executing any of the above-mentioned heating control methods.

[0016] In one embodiment, the control unit includes: a control chip; a current detection unit, which is connected in series on the path between the energy storage unit and the atomization unit and connected to the control chip, and is used to provide the control chip with the output current of the energy storage unit; a voltage detection unit, which is connected in parallel with the energy storage unit and connected to the control chip, and is used to provide the control chip with the output voltage of the energy storage unit; wherein the control chip obtains the first heating power output by the energy storage unit to the atomization unit in each atomization stage based on the output current provided by the current detection unit and the output voltage provided by the voltage detection unit.

[0017] To solve the above problems, another technical solution provided by the present application is: to provide an aerosol generating device, comprising a memory and a processor, wherein the memory stores program instructions, and the processor retrieves the program instructions from the memory to execute the heating control method as described in any one of the above items.

[0018] To solve the above problems, another technical solution provided by the present application is: providing a computer-readable storage medium, wherein 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 heating control method as described in any one of the above.

[0019] Different from the prior art, the beneficial effect of the present application is that the heating control method provided by the present application determines the atomization energy generated by the first heating power within the first heating time in each atomization stage by obtaining the first heating power and the first heating time of the aerosol generating product in each atomization stage, and then responds to the difference between the sum of the atomization energies generated by all atomization stages in the heating stage and the preset total atomization energy of the aerosol generating product being less than or equal to the first threshold value, and determines that the atomization medium in the aerosol generating product is basically consumed, thereby controlling the power output function of the aerosol generating device, such as reducing the power output of the aerosol generating device, locking the power output function of the aerosol generating device, etc., to prevent the aerosol generating product from continuing to atomize when there is not enough atomization medium, which will produce an aerosol without desired characteristics (for example: large aerosol particles, toxic and harmful chemical components, etc.), avoid the problem of dry burning, and bring a bad user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 A schematic diagram of a flow chart of an embodiment of a heating control method provided in the present application;

[0022] Figure 2 for Figure 1 A schematic flow chart of an embodiment of step S1;

[0023] Figure 3 for Figure 1 A schematic flow chart of another embodiment of step S1;

[0024] Figure 4 A power curve of an embodiment of the heating control method provided in the present application;

[0025] Figure 5 A temperature curve of an embodiment of the heating control method provided in the present application;

[0026] Figure 6 A schematic structural diagram of an embodiment of an aerosol generating device provided in the present application;

[0027] Figure 7 A schematic structural diagram of another embodiment of the aerosol generating device provided in the present application;

[0028] Figure 8A circuit diagram of an embodiment of an aerosol generating product detection unit provided in the present application;

[0029] Fig. 9 A schematic structural diagram of an embodiment of an aerosol generating device provided in the present application;

[0030] Fig.10 A module diagram of an embodiment of a computer-readable storage medium provided in the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 1 This is a flow chart of an embodiment of a heating control method provided by the present application. The present application provides a heating control method, comprising:

[0033] Step S1: In the heating stage, a first heating power and a first heating duration for the aerosol generating product in each atomization stage are obtained, and the atomization energy generated by the first heating power within the first heating duration in each atomization stage is determined.

[0034] Among them, the types of aerosol generating products generally include reusable aerosol generating products and disposable aerosol generating products such as capsules, etc. Among them, disposable aerosol generating products are easy to fill and can be thrown away after use, which is conducive to the cleaning of the aerosol generating device.

[0035] In addition, it should be noted that for a reusable aerosol generating product, the aerosol generating product may be brand new or may have been used before the current heating stage. In this embodiment, determining the atomization energy generated by the first heating power within the first heating duration in each atomization stage is to determine the atomization energy generated by the first heating power within the first heating duration in each atomization stage of all heating stages.

[0036] Taking a disposable aerosol generating product as an example below, in a heating stage S of the aerosol generating product by the aerosol generating device, the aerosol generating medium stored in the aerosol generating product can be inhaled by the user for multiple puffs, and one puff is regarded as one atomization stage S1. The relevant components (such as the control unit) in the aerosol generating device obtain the first heating power P1 and the first heating time T1 of the aerosol generating product in each atomization stage S1 during the entire heating stage S, so that the atomization energy generated in each atomization stage S1 can be determined based on the first heating power P1 and the first heating time T1 of each atomization stage S1.

[0037] Step S2: in response to the difference between the sum of the atomization energies generated in the plurality of atomization stages in the heating stage and the preset total atomization energy of the aerosol generating article being less than or equal to a first threshold, controlling the power output function of the aerosol generating device.

[0038] Among them, the experimenter can obtain the total atomization energy required for heating and atomizing the atomizing medium in the aerosol generating product through a large number of experiments and actual tests in advance, so as to store the relevant data in the relevant storage device in the aerosol generating device or in the cloud server before the aerosol generating device leaves the factory or the user uses the aerosol generating product, as the preset total atomization energy of the aerosol generating product.

[0039] In response to the difference between the sum of the atomization energies generated by multiple atomization stages S1 in the heating stage S and the preset total atomization energy of the aerosol generating product being less than or equal to the first threshold value X1, the control unit determines that there is not enough atomization medium in the aerosol generating product and continued atomization will produce an aerosol that does not have the desired characteristics (for example, large aerosol particles, toxic and harmful chemical components, etc.), thereby controlling the power output function of the aerosol generating device, such as reducing the power output of the aerosol generating device, locking the power output function of the aerosol generating device, etc., to avoid the problem of dry burning.

[0040] Among them, "locking the power output function of the aerosol generating device" means that after the power output function of the aerosol generating device is locked, without replacing a new aerosol generating product, the aerosol generating device will not output power to heat the aerosol generating product in response to the user's puffing action or button-controlled heating action.

[0041] For example, if the preset total atomization energy is W total The sum of the atomization energy generated by multiple atomization stages S1 is W sigma ,in, P1 is the first heating power. sigma With W totalIf the difference between the two values ​​is less than or equal to the first threshold value X1, it is determined that the atomizing medium in the aerosol generating matrix is ​​basically consumed, and the control unit will lock the power output function of the aerosol generating device.

[0042] For example, when W sigma With W total If the difference between the two values ​​is less than or equal to the first threshold value X1, it is determined that a small amount of atomizing medium remains in the aerosol generating matrix but it is difficult to reach the normal liquid supply standard. At this time, the control unit will reduce the power output function of the aerosol generating device.

[0043] After locking the power output function of the aerosol generating device, in order to unlock the power output function of the aerosol generating device, in one embodiment, the heating control method provided in the present application also includes: after locking the power output function of the aerosol generating device, in response to replacing the aerosol generating product, unlocking the power output function of the aerosol generating device.

[0044] Specifically, in one embodiment, the aerosol generating device further includes an aerosol generating product detection unit for detecting whether the aerosol generating product is loaded in the aerosol generating device, thereby avoiding the possibility that the power output function is activated without the aerosol generating product being loaded in the aerosol generating device, thereby preventing safety hazards.

[0045] In one embodiment, the aerosol generating product detection unit is also used to detect whether the aerosol generating product in the aerosol generating device has been replaced. When the control unit detects that the aerosol generating medium in the aerosol generating product has been used up, the power output function of the aerosol generating device is locked to avoid the problem of dry burning. Only when the aerosol generating product detection unit detects that the aerosol generating product in the aerosol generating device has been replaced, the control unit unlocks the power output function of the aerosol generating device.

[0046] Among them, considering that the user will take away some heat when puffing, the energy received in the latter stage of each atomization stage S1 is reduced compared with the former stage, thereby affecting the atomization effect in the latter stage of each atomization stage S1. Figure 2 , Figure 2 for Figure 1 The process diagram of an embodiment of step S1 in the embodiment of the present invention is to obtain the first heating power P1 and the first heating time T1 of the aerosol generating product in each atomization stage S1, specifically including:

[0047] Step S11: obtaining the atomization basic power corresponding to each moment in each atomization stage, and determining the first heating power corresponding to each moment in the atomization stage based on the atomization basic power.

[0048] For example, if an atomization stage S1 is 2s, and every 0.2s corresponds to an atomization moment, the control unit obtains the atomization basic power P11 of the device for the aerosol generating product every 0.2s, thereby determining the first heating power P1 corresponding to each moment of the atomization stage S1 based on the atomization basic power P11.

[0049] In one embodiment, the atomization basic power P11 is determined based on the atomization base power P, the first proportionality coefficient K1 and the time corresponding to the current atomization stage S1.

[0050] Specifically, the formula for obtaining the atomization basic power P11 is:

[0051] P11=P+K1*T_puff.

[0052] Among them, P11 is the atomization basic power; P is the atomization base value power; K1 is the first proportional coefficient; T_puff is the time corresponding to the current atomization stage S1.

[0053] Among them, P and K1 are preset values ​​and can be determined through experiments.

[0054] Step S12: obtaining a first heating time for heating the aerosol generating product at each atomization stage using a first heating power corresponding to each moment.

[0055] Specifically, based on the user's starting and ending puffing actions, the control unit can obtain the first heating duration T1 corresponding to the atomization stage S1, and then determine the atomization energy generated in each atomization stage S1 based on the first heating power P1 corresponding to each moment of each atomization stage S1 and the first heating duration T1.

[0056] In one embodiment, an airflow sensing element is provided in the aerosol generating device. Each time the user inhales and stops inhaling, the change of the electrical parameters output by the airflow sensing element is triggered. The control unit can determine the start action of inhalation and the end action of inhalation based on the change of the electrical parameters output by the airflow sensing element, and further determine the first heating time T1 of each atomization stage S1.

[0057] In another embodiment, a puff button is provided in the aerosol generating device, and the user controls the puff start action and the puff end action by controlling the puff button. The control unit can determine the puff start action and the puff end action based on the action of the puff button, and further determine the first heating time T1 of each atomization stage S1.

[0058] In the non-atomization stage of the heating stage S, such as the interval between each puff of the user and before the first puff, in order to achieve the effect of instant puffing, it is necessary to ensure that the aerosol generating product can be maintained at a relatively high temperature, and the temperature is maintained so as not to atomize the atomizing medium and substantially not consume the atomizing medium. Therefore, in one embodiment, see Figure 3-Figure 5 , Figure 3 for Figure 1 A schematic flow chart of another embodiment of step S1 in FIG. Figure 4 A power curve of an embodiment of the heating control method provided in the present application; Figure 5 The temperature curve of one embodiment of the heating control method provided in the present application is as follows: The heating stage S also includes a heat preservation stage S2, which is a non-atomization stage in the heating stage S and is used to maintain the aerosol generating product at a relatively high temperature without substantially consuming the atomization medium.

[0059] In this embodiment, obtaining the first heating power P1 and the first heating duration T1 of the aerosol generating article in each atomization stage S1 also includes:

[0060] Step S13: Obtain the insulation time of the previous insulation stage of each current atomization stage.

[0061] In one embodiment, the heat preservation stage S2 includes a first heat preservation stage and a second heat preservation stage, wherein the first heat preservation stage is a short-time heat preservation stage, and the second heat preservation stage is a long-time heat preservation stage.

[0062] Specifically, in response to the accumulated duration of the heating stage being less than or equal to the third threshold value X3, the control unit controls the aerosol generating device to enter the first heat preservation stage in the non-atomization stage of the heating stage S, and keeps the aerosol generating product warm at the first heat preservation power P21. In response to the accumulated duration of the heating stage being greater than the third threshold value X3, the control unit controls the aerosol generating device to enter the second heat preservation stage in the non-atomization stage of the heating stage S, and keeps the aerosol generating product warm at the second heat preservation power P22.

[0063] Among them, the first heat preservation power P21 is greater than the second heat preservation power P22. Specifically, if the cumulative duration of the current heating stage is greater than the third threshold value X3, it indicates that the temperature of the atomization unit used to heat the aerosol generating product in the aerosol generating device and the temperature of the aerosol generating product are already high, and then the smaller second heat preservation power P22 is used to keep the aerosol generating product warm in the heat preservation stage S2 to prevent the device temperature from being too high and save energy consumption. If the cumulative duration of the current heating stage is less than or equal to the third threshold value X3, it indicates that the temperature of the atomization unit used to heat the aerosol generating product in the aerosol generating device and the temperature of the aerosol generating product are not too high. In order to prevent the temperature of the atomization unit and the aerosol generating product from dropping too quickly in the heat preservation stage S2, thereby affecting the next user's puffing experience, such as slow misting, etc., the higher first heat preservation power P21 is used to keep the aerosol generating product warm in the heat preservation stage S2 to maintain the aerosol generating product at a higher temperature, which is conducive to immediate puffing and improves the user experience.

[0064] In addition, it should be noted that the first heat preservation power P21 should be smaller than the atomization basic power P11 to avoid heating the atomization medium to generate aerosol during the heat preservation stage S2, thereby causing waste.

[0065] Step S14: determining the first compensation power at each moment corresponding to each current atomization stage based on the heat preservation time and the atomization basic power, and determining the first heating power at each moment corresponding to each current atomization stage based on the first compensation power.

[0066] Specifically, in the heat preservation stage S2, the device and the atomized medium are gradually cooled to a lower equilibrium temperature, so the output first compensation power P12 needs to positively compensate for the lost heat.

[0067] The first compensation power P12 at each moment corresponding to each current atomization stage S1 is determined based on the heat preservation time T2 and the atomization basic power P11, specifically including:

[0068] In response to the heat preservation time T2 being greater than or equal to the second threshold value X2, the first compensation power P12 at each moment corresponding to the current atomization stage S1 is determined based on the atomization basic power P11 at each moment corresponding to the current atomization stage S1.

[0069] The second threshold value X2 may be the same as or different from the third threshold value X3. Specifically, in response to the heat preservation time T2 being greater than or equal to the second threshold value X2, it is characterized as a long second heat preservation stage, so the aerosol generating product may lose more heat, and the atomization basic power P11 corresponding to each moment in the current atomization stage S1 is used as the first compensation power P12 corresponding to each moment in the current atomization stage S1.

[0070] In this embodiment, the calculation formula of the first compensation power P12 is:

[0071] P12=P11.

[0072] Among them, P11 is the basic atomization power; P12 is the first compensation power.

[0073] In response to the holding time T2 being less than the second threshold X2, the first compensation power P12 corresponding to each moment in the current atomization stage S1 is determined based on the atomization basic power P11 corresponding to each moment in the current atomization stage S1, the holding time T2 and the second threshold X2.

[0074] Specifically, in response to the insulation time T2 being less than the second threshold value X2, it is characterized as a short second insulation stage, and therefore the aerosol generating product may lose less heat. Based on the atomization basic power P11 corresponding to each moment in the current atomization stage S1, the insulation time T2 and the second threshold value X2, the first compensation power P12 at each moment corresponding to the current atomization stage S1 is determined.

[0075] In this embodiment, the calculation formula of the first compensation power P12 is:

[0076] P12 = P11*(0.8+0.2*T2 / X2).

[0077] Among them, P11 is the atomization basic power; P12 is the first compensation power, T2 is the insulation time of the previous insulation stage S2 of the current atomization stage S1, and X2 is the second threshold value.

[0078] Among them, K1 is a preset value and can be determined through experiments.

[0079] Among them, as the heating stage S proceeds, the atomizing medium in the aerosol generating product is also gradually consumed. Therefore, the present application also considers the impact of power output on different residual amounts of atomizing medium in the aerosol generating product, thereby dividing the residual amount of atomizing medium into roughly three stages: a stage with a large amount of atomizing medium remaining, a stage with a small amount of atomizing medium remaining, and a stage with no atomizing medium remaining, which is determined based on the sum of the first heating durations T1 in all atomizing stages S1 before the current atomizing stage S1 and the fourth threshold value X4.

[0080] Specifically, at different atomization medium residual stages, the first heating power P1 output by the aerosol generating device is different, thereby preventing dry burning.

[0081] Therefore, in this embodiment, the first heating power P1 corresponding to each moment of each current atomization stage S1 is determined based on the first compensation power P12, specifically including:

[0082] In response to the sum of the first heating durations T1 in all atomization stages S1 before the current atomization stage S1 being less than or equal to the fourth threshold X4, the first compensation power P12 at each moment corresponding to the current atomization stage S1 is used as the first heating power P1 at each moment corresponding to the current atomization stage S1.

[0083] That is, in response to the stage of a large amount of atomizing medium remaining, the control unit uses the first compensation power P12 at each moment corresponding to the current atomizing stage S1 as the first heating power P1 at each moment corresponding to the current atomizing stage S1. The stage of a large amount of atomizing medium remaining can indicate that the remaining amount of atomizing medium in the aerosol generating product is greater than or equal to 1 / 3.

[0084] In this embodiment, the calculation formula of the first heating power P1 is:

[0085] P1=P12.

[0086] Among them, P1 is the first heating power; P12 is the first compensation power.

[0087] In response to the sum of the first heating durations T1 in all atomization stages S1 before the current atomization stage S1 being greater than the fourth threshold X4 and less than or equal to the fifth threshold X5, the first heating power P1 is determined based on the first compensation power P12 at each moment corresponding to the current atomization stage S1 and the second proportional coefficient K2.

[0088] That is, the control unit determines the first heating power P1 in response to the small amount of atomizing medium remaining stage based on the first compensation power P12 at each moment corresponding to the current atomizing stage S1 and the second proportional coefficient K2. The small amount of atomizing medium remaining stage may indicate that the remaining amount of atomizing medium in the aerosol generating product is less than 1 / 3 and greater than 0.

[0089] In this embodiment, the calculation formula of the first heating power P1 is:

[0090] P1=K2*P12.

[0091] Among them, P1 is the first heating power; P12 is the first compensation power; K2 is the second proportional coefficient.

[0092] The calculation formula of the second proportional coefficient K2 is:

[0093] K2=1.0-(1.0-K3)*(T_total_puff-T4) / (T5-T4).

[0094] Among them, K2 is the second proportional coefficient; K3 is the remaining proportional coefficient of the atomization medium; T_total_puff is the sum of the first heating durations T1 of all current atomization stages S1; T4 is the fourth threshold; and T5 is the fifth threshold.

[0095] The heating control method further includes: in response to the sum of the first heating durations T1 in all atomization stages S1 before the current atomization stage S1 being greater than a fifth threshold value X5, locking the power output stop function of the aerosol generating device.

[0096] That is, in response to the stage where there is no atomizing medium remaining, the control unit stops the power output of the aerosol generating device, that is, the first heating power P1 is 0, thereby avoiding the problem of dry burning.

[0097] Among them, since different types of aerosol generating products have different heating and atomization methods, such as ready-to-use aerosol generating products or preheated aerosol generating products, see Figure 4 or Figure 5 In one embodiment, for a preheating aerosol generating product, before the heating stage S, the heating control method further includes: in the preheating stage Y, preheating the aerosol generating product with a first preheating power P3 for a first preheating time T3.

[0098] Among them, the first preheating power P3 is greater than or equal to the first heating power P1.

[0099] It is understandable that in order to enable the user to inhale the aerosol in the shortest time, the aerosol generating product needs to reach a higher temperature, such as the critical temperature of atomization, in a short time. Therefore, the first preheating power P3 is set to be greater than or equal to the first heating power P1, so as to achieve rapid heating of the aerosol generating product to improve the user experience.

[0100] It should be noted that the preheating stage Y only needs to make the aerosol generating product reach a higher temperature in a short time without atomizing the atomizing medium. Therefore, the preheating stage Y also basically does not consume the atomizing medium.

[0101] Specifically, the heating control method provided in the present application can respond to the difference between the sum of the atomization energies generated by all the atomization stages S1 in the heating stage S and the preset total atomization energy of the aerosol generating product being less than or equal to the first threshold value X1, and then determine that there is not enough atomization medium in the aerosol generating product and continue to atomize to produce an aerosol that does not have the desired characteristics (for example: large aerosol particles, toxic and harmful chemical components, etc.), thereby controlling the power output function of the aerosol generating device, such as reducing the power output of the aerosol generating device, locking the power output function of the aerosol generating device, etc., to avoid the problem of dry burning, thereby improving the user experience.

[0102] In addition, considering that the user will take away some heat when puffing, resulting in the reduction of energy received in the latter stage of each atomization stage S1 compared to the former stage, thereby affecting the atomization effect of the latter stage of each atomization stage S1, therefore, the atomization basic power P11 corresponding to each moment in each atomization stage S1 is also obtained, and the first heating power P1 corresponding to each moment of the atomization stage S1 is determined based on the atomization basic power P11. Considering that in the non-atomization stage of the heating stage S, in order to achieve the effect of instant puffing, it is necessary to ensure that the aerosol generating product can be maintained at a relatively high temperature, and the temperature is maintained without atomizing the atomization medium and basically consuming the atomization medium, therefore, the first compensation power P12 corresponding to each moment of each current atomization stage S1 is also determined based on the insulation time T2 and the atomization basic power P11, and the first heating power P1 corresponding to each moment of each current atomization stage S1 is determined based on the first compensation power P12. Taking into account the influence of power output on different residual amounts of atomized medium in the aerosol generating product, in response to the sum of the first heating times T1 in all atomization stages S1 before the current atomization stage S1 being less than or equal to the fourth threshold value X4, the first compensation power P12 at each moment corresponding to the current atomization stage S1 is used as the first heating power P1 at each moment corresponding to the current atomization stage S1; or in response to the sum of the first heating times T1 in all atomization stages S1 before the current atomization stage S1 being greater than the fourth threshold value X4 and less than or equal to the fifth threshold value X5, the first heating power P1 is determined based on the first compensation power P12 at each moment corresponding to the current atomization stage S1 and the second proportional coefficient K2.

[0103] See also Figure 6 , Figure 6 This is a schematic structural diagram of an embodiment of an aerosol generating device provided in the present application. The present application also provides an aerosol generating device 100, including an atomization unit 10, an energy storage unit 20 and a control unit 30.

[0104] The atomization unit 10 is used to heat the aerosol-generating product. The heating form of the atomization unit 10 can be electromagnetic heating, central needle heating, laser heating, etc., which is not limited here.

[0105] The energy storage unit 20 is connected to the atomization unit 10 and is used to provide electrical energy to the atomization unit 10. The energy storage unit 20 may be a battery cell, a battery, or other components or discharge devices that can provide electrical energy.

[0106] The control unit 30 is connected to the energy storage unit 20 and the atomization unit 10, and is used to control the energy storage unit 20 in each atomization stage S1 in the heating stage S, and provide the atomization unit 10 with a first heating power P1 to heat the aerosol generating product. The control unit 30 also executes the heating control method provided in the above embodiment.

[0107] See also Figure 7 , Figure 7 This is a structural schematic diagram of another embodiment of the aerosol generating device provided in the present application. In one embodiment, the control unit 30 includes a control chip 31, a current detection unit 32 and a voltage detection unit 33.

[0108] Specifically, the current detection unit 32 is connected in series to the path between the energy storage unit 20 and the atomization unit 10, and is connected to the control chip 31, and is used to provide the output current of the energy storage unit 20 to the control chip 31; the voltage detection unit 33 is connected in parallel to the energy storage unit 20, and is connected to the control chip 31, and is used to provide the output voltage of the energy storage unit 20 to the control chip 31. The control chip 31 obtains the first heating power P1 output by the energy storage unit 20 to the atomization unit 10 in each atomization stage S1 based on the output current provided by the current detection unit 32 and the output voltage provided by the voltage detection unit 33.

[0109] In one embodiment, please continue to refer to Figure 7 The control unit 30 further includes a timer (not shown), and the aerosol generating device 100 further includes a switch element 40 connected to the timer.

[0110] Specifically, the switch element 40 can be an airflow sensing element or a suction button, which is used to detect or control whether the aerosol generating device 100 is in the atomization stage S1. The timer is used to time when the aerosol generating device 100 is in the atomization stage S1, so as to obtain the first heating time T1 corresponding to each atomization stage S1.

[0111] In one embodiment, the aerosol generating device 100 further includes an aerosol generating product detection unit for detecting whether the aerosol generating product is loaded in the aerosol generating device 100 .

[0112] See also Figure 8 , Figure 8 This is a circuit structure diagram of an embodiment of an aerosol generating product detection unit provided in the present application. In one embodiment, the circuit structure of the aerosol generating product detection unit includes a first inductor L1, a first capacitor C1, a first switch Q1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a comparator A.

[0113] Specifically, the first inductor L1 and the first capacitor C1 are connected in parallel and have a first node n1 and a second node n2. The first node n1 is connected to the first power supply terminal Vbat (such as the energy storage unit 20), the first plate of the first capacitor and the first end of the second resistor R2. The second node n2 is connected to the second plate of the first capacitor C1 and the first path end of the first switch Q1. The second path end of the first switch Q1 is grounded. The control end of the first switch Q1 is connected to the control unit 30 or the corresponding detection switch. The second end of the first resistor R1 is connected to the first end of the third resistor R3 and the first input end of the comparator A. The second end of the second resistor R2 is connected to the first end of the fourth resistor R4 and the second input end of the comparator A. The third resistor R3 and the second end of the fourth resistor R4 are grounded. The output end of the comparator A is connected to the control unit 30.

[0114] Specifically, when the control end of the first switch Q1 is in the on state, the first inductor L1 and the first capacitor C1 send detection pulses with a preset frequency, and the control unit 30 determines whether the aerosol generating product is loaded in the aerosol generating device 100 based on the number of pulses output by the output end of the comparator A received within a preset waiting time.

[0115] Among them, the resistance value of the first resistor R1 is related to the aerosol generating product. When the aerosol generating product is loaded in the aerosol generating device 100, the equivalent resistance value of the first resistor R1 becomes larger, and the control unit 30 receives less pulses based on the number of pulses output from the output end of the comparator A received within the preset waiting time; when the aerosol generating product is not loaded in the aerosol generating device 100, the equivalent resistance value of the first resistor R1 becomes smaller, and the control unit 30 receives more pulses based on the number of pulses output from the output end of the comparator A received within the preset waiting time. The control unit 30 further determines whether the aerosol generating product is loaded in the aerosol generating device 100 based on the number of pulses output from the output end of the comparator A received within the preset waiting time.

[0116] See also Fig. 9 , Fig. 9 The aerosol generating device 200 includes a memory 201 and a processor 202. The memory 201 stores program instructions. The processor 202 retrieves the program instructions from the memory 201 to execute the heating control method provided in any of the above embodiments.

[0117] The processor 202 may also be referred to as a CPU (Central Processing Unit). The processor 202 may be an integrated circuit chip having signal processing capabilities. The processor 202 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 devices, discrete gate or transistor logic devices, discrete hardware components. A general-purpose processor may be a microprocessor or the processor 202 may also be any conventional processor, etc.

[0118] The memory 201 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 201. It stores and retrieves information according to the location specified by the controller. With the memory 201, the electronic device has a memory function and can ensure normal operation. The memory 201 of the electronic device can be divided into main memory (internal memory) and auxiliary memory (external memory) according to its purpose, and 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 it 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.

[0119] See also Fig.10 , Fig.10 The present application also provides a computer-readable storage medium 300, which is used to store a control program 301. When the control program 301 is executed by the processor 202, it is used to implement the heating control method provided in any of the above embodiments.

[0120] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple 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 an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0121] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0122] The above description 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 present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating control method, characterized in that: include: In the heating stage, obtaining a first heating power and a first heating duration of the aerosol generating product in each atomization stage, and determining the atomization energy generated by the first heating power within the first heating duration in each atomization stage; In response to the difference between the sum of the atomization energies generated in the plurality of atomization stages in the heating stage and the preset total atomization energy of the aerosol generating article being less than or equal to a first threshold, the power output function of the aerosol generating device is controlled.

2. The heating control method according to claim 1, characterized in that: The obtaining of a first heating power and a first heating duration of the aerosol generating product in each atomization stage comprises: Acquire the atomization basic power corresponding to each moment in each atomization stage, and determine the first heating power corresponding to each moment in the atomization stage based on the atomization basic power; And, the first heating time duration for heating the aerosol generating product at each atomization stage by the first heating power corresponding to each moment is obtained.

3. The heating control method according to claim 2, characterized in that: The atomization basic power is determined based on the atomization base value power, the first proportionality coefficient and the time corresponding to the current atomization stage.

4. The heating control method according to claim 1 or 2, characterized in that: The heating stage also includes at least one heat preservation stage; Obtaining a first heating power and a first heating duration of the aerosol generating product in each atomization stage also includes: Obtaining the insulation time of the previous insulation stage of each current atomization stage; The first compensation power at each moment corresponding to each current atomization stage is determined based on the heat preservation time and the atomization basic power, and the first heating power at each moment corresponding to each current atomization stage is determined based on the first compensation power.

5. The heating control method according to claim 4, characterized in that: The determining of the first compensation power at each moment corresponding to each current atomization stage based on the heat preservation time and the atomization basic power includes: In response to the heat preservation time being greater than or equal to a second threshold, determining the first compensation power at each moment corresponding to the current atomization stage based on the atomization basic power corresponding to each moment in the current atomization stage; In response to the heat preservation time being less than the second threshold, the first compensation power at each moment corresponding to the current atomization stage is determined based on the atomization basic power corresponding to each moment in the current atomization stage, the heat preservation time and the second threshold.

6. The heating control method according to claim 4, characterized in that: The heat preservation stage includes a first heat preservation stage and a second heat preservation stage; In response to the accumulated duration of the heating stage being less than or equal to a third threshold, the heat preservation stage is the first heat preservation stage, and the aerosol generating article is kept warm at a first heat preservation power; In response to the accumulated duration of the heating stage being greater than the third threshold, the heat preservation stage is the second heat preservation stage, and the aerosol generating article is kept warm at a second heat preservation power; The first heat preservation power is greater than the second heat preservation power, and the first heat preservation power is less than the atomization basic power.

7. The heating control method according to claim 4, characterized in that: The determining, based on the first compensation power, the first heating power corresponding to each moment of each current atomization stage comprises: In response to the sum of the first heating durations in all the atomization stages before the current atomization stage being less than or equal to a fourth threshold, taking the first compensation power at each moment corresponding to the current atomization stage as the first heating power at each moment corresponding to the current atomization stage; In response to the sum of the first heating durations in all the atomization stages before the current atomization stage being greater than the fourth threshold and less than or equal to the fifth threshold, the first heating power is determined based on the first compensation power and the second proportional coefficient at each moment corresponding to the current atomization stage.

8. The heating control method according to claim 1 or 7, characterized in that: The heating control method further comprises: In response to the sum of the first heating time periods in all the atomization stages before the current atomization stage being greater than a fifth threshold, the power output function of the aerosol generating device is locked.

9. The heating control method according to claim 1, characterized in that: Before the heating stage, the heating control method further includes: In a preheating stage, preheating the aerosol generating article at a first preheating power for a first preheating time; Wherein, the first preheating power is greater than or equal to the first heating power.

10. The heating control method according to claim 1 or 8, characterized in that: The heating control method further comprises: After locking the power output function of the aerosol generating device, in response to replacing the aerosol generating article, unlocking the power output function of the aerosol generating device.

11. An aerosol generating device, characterized in that: include: an atomizing unit for heating the aerosol-generating product; Energy storage unit; Connecting the atomization unit; A control unit is connected to the energy storage unit and the atomization unit, and the control unit is used to control each atomization stage of the energy storage unit in the heating stage, provide a first heating power to the atomization unit to heat the aerosol generating product, and execute the heating control method described in any one of claims 1-10.

12. The aerosol generating device according to claim 11, characterized in that The control unit comprises: Control chip; A current detection unit is connected in series on the path between the energy storage unit and the atomization unit and connected to the control chip, and is used to provide the output current of the energy storage unit to the control chip; a voltage detection unit, connected in parallel with the energy storage unit and connected to the control chip, and configured to provide the control chip with an output voltage of the energy storage unit; Wherein, the control chip obtains the first heating power output by the energy storage unit to the atomization unit in each atomization stage based on the output current provided by the current detection unit and the output voltage provided by the voltage detection unit.

13. An aerosol generating device, characterized in that: The method 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 heating control method according to any one of claims 1 to 10.

14. 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 heating control method according to any one of claims 1 to 10.

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