Aerosol generating device and control method thereof

Abstract

The aerosol generating device (100) and the control method thereof include: a battery cell (40); a first heating assembly (10) that heats a first aerosol forming substrate to generate a first aerosol; a second heating assembly (20) that heats a second aerosol forming substrate to generate a second aerosol - the second aerosol is output after being mixed with the first aerosol -; and a controller configured to detect whether an inhalation signal is acquired during the process of controlling the first heating assembly (10) to heat the first aerosol forming substrate; when an inhalation signal is acquired, the first heating assembly (10) is controlled to stop heating and the second heating assembly (20) is controlled to start heating; and when inhalation occurs, the first heating assembly (10) is controlled to stop heating and the second heating assembly (20) is controlled to start heating, thereby preventing the problem of the voltage of the battery cell (40) becoming lower and triggering the interruption of protection of the chip, and ensuring normal inhalation and experience of the user.

Description

Technology Field

[0001] The present application claims priority to a Chinese patent application filed with the Chinese Patent Office on December 15, 2023, with application number 202311732693.9 and titled "Aerosol generating device and method for controlling the same," the entire contents of which are incorporated into the present application by reference.

[0002] This application relates to the field of electronic atomization technology, and in particular to an aerosol generating device and a method for controlling the same. Background Technology

[0003] To meet the diverse needs of users, a hybrid aerosol generator equipped with the simultaneous function of atomizing solid and liquid substrates has become the preferred choice for users.

[0004] In the case of a hybrid aerosol generating device, its structure mainly includes a first heating assembly for atomizing a solid substrate and a second heating assembly for atomizing a liquid substrate. During operation, the first heating assembly and the second heating assembly operate simultaneously, and, for example, when a microphone sensor detects inhalation, it triggers the first heating assembly and the second heating assembly to operate simultaneously.

[0005] The above-described hybrid aerosol generating device is prone to lowering the battery cell voltage when the first heating assembly and the second heating assembly operate simultaneously; when the battery cell voltage drops below the load voltage protection point of the chip, for example, 3V or lower, protection interruption is triggered, preventing the chip from operating normally, which affects the user's inhalation experience.

[0006] The present application provides an aerosol generating device and a control method thereof for solving the problem in which the battery cell voltage is lowered and the interruption of protection of the chip is triggered as the first heating assembly and the second heating assembly operate simultaneously.

[0007] In one aspect of the present application, an aerosol generating device is provided, which,

[0008] A battery cell that provides power;

[0009] A first heating assembly that heats a first aerosol-forming substrate to generate a first aerosol;

[0010] A second heating assembly for heating a second aerosol-forming substrate to generate a second aerosol—the second aerosol is mixed with the first aerosol and then output—; and

[0011] A controller configured to detect whether an inhalation signal is acquired during the process of controlling the first heating assembly to heat the first aerosol-forming substrate—when the inhalation signal is acquired, the controller controls the first heating assembly to stop heating and controls the second heating assembly to start heating the second aerosol-forming substrate—; is included.

[0012] In another aspect of the present application, a method for controlling an aerosol generating device is provided, wherein the aerosol generating device is,

[0013] A battery cell that provides power;

[0014] A first heating assembly that heats a first aerosol-forming substrate to generate a first aerosol;

[0015] A second heating assembly for heating a second aerosol-forming substrate to generate a second aerosol—the second aerosol is mixed with the first aerosol and then output—; comprising;

[0016] The above control method is,

[0017] A step of detecting whether an inhalation signal has been acquired during the process of controlling the first heating assembly to heat the first aerosol-forming substrate;

[0018] When the above suction signal is acquired, the method includes the step of controlling the first heating assembly to stop heating and controlling the second heating assembly to start heating the second aerosol-forming substrate.

[0019] The aerosol generating device and control method provided in this application control the first heating assembly to stop heating and the second heating assembly to start heating upon inhalation, thereby preventing the problem of the battery cell voltage becoming lower and triggering the interruption of protection of the chip, and ensuring normal inhalation and experience for the user. Brief explanation of the drawing

[0020] In order to more clearly explain the specific embodiments of the present application or the technical solutions of the prior art, the accompanying drawings required for the description of the specific embodiments or prior art are briefly introduced below. In all accompanying drawings, similar elements or parts are generally identified by similar drawing notations. In the drawings, each element or part is not necessarily drawn in actual proportion. FIG. 1 is a schematic diagram of an aerosol generating device provided in an embodiment of the present application. FIG. 2 is a schematic diagram of another view of an aerosol generating device provided in an embodiment of the present application. FIG. 3 is a cross-sectional view of an aerosol generating device provided in an embodiment of the present application. FIG. 4 is a schematic diagram of the temperature and time curve of a heating assembly provided in an embodiment of the present application. Figure 5 is a schematic diagram of the voltage and time curve provided in the embodiment of the present application. FIG. 6 is a flowchart of a control method for an aerosol generating device provided in an embodiment of the present application. FIG. 7 is a schematic diagram of another flow of a control method for an aerosol generating device provided in an embodiment of the present application. Specific details for implementing the invention

[0021] To facilitate understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when a component is described as being "fixed" to another component, it may be directly on the other component, or one or more intermediate components may exist between them. When a component is described as being "connected" to another component, it may be directly connected to the other component, or one or more intermediate components may exist between them. Orientations or positional relationships indicated by terms used in this specification, such as "up," "down," "inside," "outside," "vertical," "horizontal," etc., are based on the orientations or positional relationships depicted in the accompanying drawings and are intended merely to facilitate explanation and simplify the description of the present application. They do not indicate or imply that the device or component indicated must have a specific orientation or be configured and operated in a specific orientation, and should not be understood as a limitation on the present application. Furthermore, terms such as "first," "second," etc., are used merely to explain the purpose and should not be understood as indicating or implying relative importance.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by a person skilled in the art of this application. In this specification, the terms used are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more related listed items.

[0023] Referring to FIGS. 1 to 3, the aerosol generating device (100) includes a first heating assembly (10), a second heating assembly (20), a case (30), and a battery cell (40). The first heating assembly (10), the second heating assembly (20), and the battery cell (40) are housed inside the case (30), and the battery cell (40) provides power necessary for operation to the first heating assembly (10) and the second heating assembly (20).

[0024] A first heating assembly (10) heats a first aerosol-forming substrate to generate a first aerosol, wherein the first aerosol-forming substrate comprises a solid-state aerosol-forming substrate, and the first aerosol-forming substrate may be an aerosol-generating product (201), for example, a cigarette stick. A second heating assembly (20) heats a second aerosol-forming substrate to generate a second aerosol, wherein the second aerosol-forming substrate comprises a liquid-state aerosol-forming substrate, and the second aerosol-forming substrate may be a cigarette liquid (202). The first heating assembly (10) and the second heating assembly (20) are fluidly connected so that the second aerosol generated in the second heating assembly (20) can enter the first heating assembly (10), mix with the first aerosol generated in the first heating assembly (10), and then be output.

[0025] It is easy to understand that since the second aerosol has a relatively high temperature, it can perform heating and baking functions for the aerosol-generating product (201) even when the second aerosol passes through the aerosol-generating product (201), thereby providing the user with a superior taste experience.

[0026] With reference to FIG. 3, the aerosol generating device (100) defines a heating chamber (111), and the heating chamber (111) accommodates at least a portion of an aerosol generating product (201). The heating chamber (111) may be defined by a housing member of the aerosol generating device (100). The second heating assembly (20) and the heating chamber (111) are fluidly connected. Since the second heating assembly (20) and the heating chamber (111) are fluidly connected, the second aerosol can enter the heating chamber (111); accordingly, when the aerosol generating product (201) is placed inside the heating chamber (111), the second aerosol can enter the interior of the aerosol generating product (201) upon inhalation by a user.

[0027] The first heating assembly (10) may be a contact heating assembly in which at least a portion of the area is in contact with the aerosol generating product (201), and in some embodiments, the first heating assembly (10) may include a coil that generates a changing magnetic field and a susceptor that detects the changing magnetic field and generates an eddy current, the coil is installed to wrap around the outer wall of the heating chamber (111), and the susceptor is installed inside the heating chamber (111), at least a portion thereof is inserted into the aerosol generating product (201) so as to heat the aerosol generating product (201) from the center. Of course, the susceptor may be covered on the outside of the aerosol generating product (201) to heat the aerosol generating product (201) from the circumferential direction.

[0028] In some embodiments, the first heating assembly (10) may include a metal heating mesh, and the metal heating mesh is covered on the outer wall of the heating chamber (111) to heat the aerosol generating product (201) by transferring heat into the interior of the heating chamber (111) in a circumferential direction using resistance heating. In some embodiments, the first heating assembly (10) may include a heating pin or a heating sheet, and the heating pin or heating sheet is inserted into the aerosol generating product (201) to heat the aerosol generating product (201) from the center using resistance heating. In some embodiments, the first heating assembly (10) may further include a heating plate, and the heating plate is located at the bottom of the aerosol generating product (201) but is not inserted into the interior of the aerosol generating product (201).

[0029] The first heating assembly (10) may be a non-contact heating assembly, for example, an infrared heating assembly. The first heating assembly (10) includes an infrared radiator (not shown), and the infrared radiator generates infrared radiation for radiative heating of an aerosol generating product (201) and can heat the aerosol generating product (201) from the center or circumferential direction.

[0030] In some embodiments, the first heating assembly (10) may include a heating base (11), an infrared heat coating layer (not shown), a first electrode (not shown), and a second electrode (not shown). The heating base (11) may be hollow, and a heating chamber (111) for receiving an aerosol generating product (201) is formed inside it. The infrared heat coating layer is applied to the outside of the heating base (11). The first electrode is installed on the outside of the heating base (11) and contacts the infrared heat coating layer, and the second electrode is installed on the outside of the heating base (11) and contacts the infrared heat coating layer, and at least a portion of the infrared heat coating layer is located between the first electrode and the second electrode. Among them, the first electrode and the second electrode are used to be electrically connected to the battery cell (40), thereby allowing at least a portion of the infrared thermal coating layer to absorb heat generated by receiving power and generate infrared rays to radiately heat the aerosol generating product (201).

[0031] The second heating assembly (20) includes a liquid storage housing (21) and a liquid induction element (22). A liquid storage chamber (211) is defined within the liquid storage housing (21) and is used to store a second aerosol-forming substrate, for example, tobacco liquid (202). The liquid induction element (22) is fluidly connected to the liquid storage chamber (211) and is used to absorb tobacco liquid (202) from the liquid storage chamber (211) and transfer the tobacco liquid (202) to the heating element (23). The liquid induction element (22) may be manufactured from a material having capillary passages or pores, and may be manufactured from a hard or rigid capillary structure such as fiber wool, a porous ceramic body, a glass fiber rope, a porous glass ceramic, or porous glass. When the heating element (23) is energized, it heats at least a portion of the tobacco liquid (202) absorbed by the liquid induction element (22) to generate an aerosol, and the aerosol is discharged into the atomizing chamber (23) after exiting, and the atomizing chamber (23) is fluidly connected to the heating chamber (111), and the aerosol generated from the tobacco liquid (202) flows into the heating chamber (111) and can enter the aerosol generating product (201) inside the heating chamber (111).

[0032] Furthermore, the housing (30) is provided with an intake port (31) that allows external air to flow into the aerosol generating device (100). The intake port (31) is fluidly connected to the atomizing chamber (23) and fluidly connected to the heating chamber (111), thereby forming an airflow path of the aerosol generating device (100), as shown in the arrow path (R1) of FIG. 3. Through this airflow path, the second aerosol from the atomizing chamber (23) is transferred into the heating chamber (111), and then the second aerosol enters the aerosol generating product (201) and is mixed with the first aerosol generated by the aerosol generating product (201) receiving heat and volatilizing. The user can inhale the mixed aerosol through the aerosol generating product (201), and the mixed aerosol has a richer taste and better inhalation sensation compared to the aerosol alone. In another example, the second aerosol may be mixed with the first aerosol generated by the aerosol generating product (201) receiving heat and volatilizing, without passing through the heating chamber (111), and then inhaled by the user; for example, the first aerosol is independently output to the mixing chamber, and the second aerosol is independently output to the mixing chamber and mixed with the first aerosol within the mixing chamber.

[0033] Furthermore, the aerosol generating device (100) further includes an inhalation detector (50) and a circuit board (60), and the circuit board (60) is equipped with a controller and a switching tube, for example, an MCU (single-chip microcomputer or microcontroller unit), and the switching tube induces current between the battery cell (40) and the heating element (23), and the MCU outputs a PWM signal of a constant frequency and duty ratio to the switching tube to control the power provided by the battery cell (40) to the heating element (23). Both the inhalation detector (50) and the battery cell (40) are electrically connected to the circuit board (60), and the battery cell (40) is a rechargeable battery cell, for example, any one of a lead-acid battery, a nickel-cadmium battery, a nickel-iron battery, a nickel-hydrogen battery, a lithium-ion battery, etc. The inhalation detector (50) detects inhalation of the aerosol generating device (100) and outputs an inhalation signal. Specifically, the inhalation detector (50) may be an airflow sensor, and the airflow sensor is fluidly connected to the intake port (31). The airflow sensor detects a change in air pressure of the aerosol generating device (100), generates an inhalation signal according to the change in air pressure, and then transmits the inhalation signal to the controller of the circuit board (60). It can be understood that detecting whether the aerosol generating device (100) has been inhaled is not limited to the above-described situation; in other examples, detection and determination may be made through other sensors such as a temperature sensor, a pressure sensor, etc., for example; or detection and determination of whether the aerosol generating device (100) has been inhaled may be made through parameters detected by the circuit, such as voltage, current, power, etc.

[0034] After the user inserts the aerosol generating product (201) into the heating chamber (111) within the first heating assembly (10) and inhales the aerosol generating product (201), external air is drawn into the aerosol generating device (100) under the action of the suction force, some of which flows into the heating chamber (111) through the airflow path (R1), and other parts flow to the airflow sensor. The airflow sensor detects that negative pressure is generated inside the aerosol generating device and generates a detection signal, and transmits the detection signal to the controller of the circuit board (60). When the controller determines that the aerosol generating device (100) must be used because the user is inhaling, the controller can control the battery cell (40) to provide the power required for heating to the first heating assembly (10) and the second heating assembly (20).

[0035] Additionally, the aerosol generating device (100) further includes a bracket (80). A receiving chamber (not shown) is limited in the bracket (80), and a second heating assembly (20) is fixed within the receiving chamber to secure the second heating assembly (20).

[0036] Based on the above aerosol generating device (100), in one example, the controller controls the first heating assembly (10) to start heating and enter the heating stage when a power-on signal is detected.

[0037] The heating stage may be the time interval t0 to t1 shown in FIG. 4, and during the heating stage, the temperature of the first heating assembly (10) rises from an initial temperature (T0) to a target temperature (T1). The initial temperature (T0) may be an ambient temperature or may be higher than the ambient temperature. The target temperature (T1) is between 150°C and 300°C, and specifically, may be 220°C, 250°C, etc. Generally, during the heating stage, the controller controls the power provided by the battery cell (40) to the first heating assembly (10) to be maximum power, thereby causing the temperature of the first heating assembly (10) to rise rapidly to the target temperature (T1), thereby shortening the user's inhalation waiting time. The power-on signal may be derived from a button signal for operating the aerosol generating device (100) or may be other instruction signals.

[0038] After the heating stage is finished, the controller controls the first heating assembly (10) to enter the heat retention stage.

[0039] The warming stage is the time interval t1 to t2 shown in FIG. 4. During the warming stage, the controller controls the power provided by the battery cell (40) to the first heating assembly (10) (the power corresponding to the warming stage is smaller than the power corresponding to the heating stage), and controls the first heating assembly (10) to be maintained at the target temperature (T1) for, for example, 7 to 15 seconds, thereby providing sufficient energy to the aerosol generating product (201) to generate the first aerosol.

[0040] At time t2 or at the end of the warming phase, the controller outputs an aerosol inhalation notification signal. Specifically, a notification operation can be executed according to the aerosol inhalation notification signal output by the controller through a notification device (not shown in the drawing) connected to the controller. For example, the notification device is a vibration motor, and the vibration motor vibrates according to the aerosol inhalation notification signal output by the controller (including a start signal for controlling the operation of the vibration motor) to notify the user that aerosol can be inhaled; the notification device is an LED lamp, and the LED lamp continuously lights up or blinks according to the aerosol inhalation notification signal output by the controller to notify the user that aerosol can be inhaled.

[0041] It should be explained that the aforementioned heating step and heat retention step can be collectively referred to as the preheating step, and the duration of the preheating step is generally between 15 and 30 seconds. During the heating step and the heat retention step, the second heating assembly (20) does not start heating. In other examples, the aforementioned heat retention step may be omitted.

[0042] After the warming phase is finished, the controller controls the first heating assembly (10) to enter the suction phase.

[0043] The inhalation phase is the time interval t2 to t3 shown in FIG. 4, and the value of the time interval t2 to t3 may be 180 s or the duration of 15 puffs of inhalation. In the inhalation phase, the controller initiates detection by the inhalation detector (50).

[0044] In one example, if the suction signal output by the suction detector (50) is not acquired, the controller controls the power provided by the battery cell (40) to the first heating assembly (10) (the power corresponding to the suction stage is less than the power corresponding to the warming stage) so that the first heating assembly (10) is maintained at a preset temperature (T2), and the preset temperature (T2) is lower than the target temperature (T1). In a specific embodiment, the controller controls the power provided by the battery cell (40) to the first heating assembly (10) to be a fixed power, for example, when the temperature of the first heating assembly (10) is lower (less than the preset temperature (T2)), the controller controls the power provided by the battery cell (40) to the first heating assembly (10) to be a first power so that the temperature of the first heating assembly (10) gradually rises; When the temperature of the first heating assembly (10) is higher (when it is higher than the preset temperature (T2)), the controller controls the power provided by the battery cell (40) to the first heating assembly (10) to be a second power that is smaller than the first power, thereby causing the temperature of the first heating assembly (10) to gradually decrease, so that the temperature of the first heating assembly (10) fluctuates up and down around the preset temperature (T2).

[0045] When an inhalation signal output by the inhalation detector (50) is acquired, the controller controls the first heating assembly (10) to stop heating and controls the second heating assembly (20) to start heating. Since the second heating assembly (20) can rapidly atomize the second aerosol forming substrate to generate the second aerosol, the user can inhale the mixed aerosol. When the controller acquires the inhalation signal output by the inhalation detector (50), it starts a timer (which may be an internal timer or an external timer) to start timing, and when the timer duration reaches a preset duration, it controls the second heating assembly (20) to stop heating and controls the first heating assembly (10) to start heating again. Generally, the preset duration is shorter than the inhalation time of a single puff, for example, between 1 and 2 seconds, and specifically, 1.5 seconds. It can be understood that the preset duration may be slightly longer than the inhalation time of a single puff or may be the same as the inhalation time of a single puff; at this time, during the inhalation of a single puff, the first heating assembly (10) stops heating and the second heating assembly (20) maintains the heating state; and after the inhalation of a single puff is finished, the first heating assembly (10) starts heating and the second heating assembly (20) stops heating.

[0046] When the controller controls the first heating assembly (10) to stop heating and the second heating assembly (20) to start heating, the operating voltage of the controller will not drop excessively low, thereby triggering a protection interruption and preventing the device from operating normally. This can be seen from the curves shown in FIG. 5, and as shown in the figure, curve A in the figure is a curve showing the relationship between voltage and time when the controller controls the first heating assembly (10) to stop heating and the second heating assembly (20) to start heating, and curve B in the figure is a curve showing the relationship between voltage and time when the controller controls the first heating assembly (10) and the second heating assembly (20) to start heating simultaneously (both cases where the suction signal output by the suction detector (50) is acquired).

[0047] In one example, the controller is configured to acquire the voltage of the battery cell; and when the suction signal is acquired and the voltage of the battery cell is lower than a preset threshold, the controller controls the first heating assembly to stop heating and controls the second heating assembly to start heating the second aerosol-forming substrate.

[0048] In this example, when the battery cell voltage is higher, for example, when the battery cell voltage is fully charged immediately after charging is completed, the operating voltage of the controller does not drop below the load voltage protection point even if the first heating assembly (10) and the second heating assembly (20) start heating simultaneously. Therefore, when the battery cell voltage drops, for example to 3.6V or 3.5V, the first heating assembly (10) and the second heating assembly (20) can be controlled again to start heating alternately.

[0049] In one example, when the controller controls the first heating assembly (10) to stop heating and the second heating assembly (20) to start heating, the controller controls the battery cell (40) to provide electrostatic power to the second heating assembly (20). As can be seen from curve A in FIG. 5, the operating voltage is relatively stable and does not fluctuate due to the heating influence of the first heating assembly (10). Therefore, consistency can be ensured for each puff of the second heating assembly (20), that is, consistency of the inhalation sensation is ensured.

[0050] In a specific embodiment, the controller may control the battery cell (40) to provide electrostatic power to the second heating assembly (20) according to a predetermined duty cycle of the switching tube or a duty cycle of the switching tube calculated in real time. For example, when controlling the second heating assembly (20) to start heating, the load voltage operating the second heating assembly (20) is determined, and the duty cycle of the PWM signal output to the switching tube is calculated according to the resistance value (already known) of the heating element (23) and a preset output power, thereby controlling the battery cell (40) to provide electrostatic power to the second heating assembly (20). Assuming that the load voltage operating the second heating assembly (20) is 3.7V, the resistance value of the heating element (23) is 0.5Ω, and the preset output power is 3W, the duty cycle of the PWM signal output to the switching tube is calculated as follows. The above-described duty cycle may be calculated when a power-on signal is detected, and subsequently, when the second heating assembly (20) is controlled to start heating, the switching tube is directly controlled with the calculated duty cycle.

[0051] In one example, during the suction phase, that is, the time interval t2 to t3 illustrated in FIG. 4, the method of maintaining the first heating assembly (10) at a preset temperature (T2) may differ from controlling the power provided to the first heating assembly (10) by the aforementioned battery cell (40). For example, a controller controls the battery cell (40) to provide fixed energy to the first heating assembly (10) so that the first heating assembly (10) is maintained at a preset temperature (T2).

[0052] Specifically, assuming that one energy supply cycle is one in which the first heating assembly (10) fluctuates up and down once at a preset temperature (T2), the energy supply cycle includes an energy supply duration process and a natural cooling time process (a unit natural cooling time means the time required for the temperature of the first heating assembly (10) to drop by 1 degree Celsius after the design of the entire product is completed; the natural cooling time may be the time to stop the energy supply determined based on the allowable temperature drop range of the first heating assembly (10) determined according to the needs of the product design, and the natural cooling time may be several times the unit natural cooling time). During the energy supply process, the controller monitors the energy supplied by the battery cell (40) to the first heating assembly (10), and when the energy supplied by the battery cell (40) to the first heating assembly (10) reaches a set energy, the controller controls the battery cell (40) to stop the energy supply, otherwise the energy supply continues. Since there is no energy supply, the temperature of the first heating assembly (10) begins to decrease, and the rate of decrease is determined by the temperature decrease capability of the first heating assembly (10); if the aerosol generating device (100) is inhaled during this time process, the rate of decrease becomes relatively faster.

[0053] In this example, by controlling the first heating assembly (10) and the second heating assembly (20) to start heating alternately, the problem of inconsistent suction sensation due to inconsistent power supplied to the second heating assembly (20) during the previous and subsequent suction processes can also be prevented. For example, if the first heating assembly (10) continues to maintain the start of heating, the corresponding loads during the period when the controller controls the battery cell (40) to provide energy to the first heating assembly (10) and the period when the controller controls the battery cell (40) to stop the energy supply are different from each other, and if the duty cycle of the switching tube is calculated according to the method described above, it results in a problem where the power of the first heating assembly (10) does not match during the two periods.

[0054] In one embodiment, when the timer duration reaches a preset duration and the controller controls the second heating assembly (20) to stop heating and the first heating assembly (10) to start heating again, the controller detects again whether an inhalation signal has been acquired, that is, determines whether there is inhalation again by the user. If the controller acquires an inhalation signal again, the aforementioned control steps are repeated until the inhalation is stopped or a power-off signal is acquired.

[0055] FIG. 6 is a flowchart of a control method for an aerosol generating device provided in an embodiment of the present application, and the aerosol generating device may refer to the aforementioned parts. As shown in FIG. 6, the control method comprises:

[0056] S11, a step of detecting whether an inhalation signal has been acquired in the process of controlling the first heating assembly to heat the first aerosol-forming substrate;

[0057] S12, when the suction signal is acquired, the method includes the step of controlling the first heating assembly to stop heating and controlling the second heating assembly to start heating the second aerosol-forming substrate.

[0058] In one example, when the heating duration of the second heating assembly reaches a preset duration, the second heating assembly is controlled to stop heating, and the first heating assembly is controlled to start heating again.

[0059] In one example, the above preset duration is shorter than the inhalation time of a single puff.

[0060] In one example, the preset duration is between 1 and 2 seconds.

[0061] In one example, during the process of controlling the first heating assembly to start heating again, whether a suction signal has been acquired is detected again.

[0062] In one example, when outputting an aerosol inhalation possible notification signal, it detects whether an inhalation signal has been acquired.

[0063] In one example, the process of the first heating assembly heating the first aerosol-forming substrate includes a heating step and an inhalation step;

[0064] When the heating step of the first heating assembly ends or when the first heating assembly enters the suction step, it is detected whether a suction signal has been acquired.

[0065] In one example, the process of the first heating assembly heating the first aerosol-forming substrate further includes a warming step between the heating step and the suction step;

[0066] When the insulation step of the first heating assembly is terminated, it is detected whether an intake signal has been acquired.

[0067] In one example, when a power-on signal is detected, the first heating assembly is controlled to start heating and enter a heating step.

[0068] In one example, the battery cell is controlled to provide electrostatic power to the second heating assembly.

[0069] In one example, the voltage of the battery cell is obtained; when the suction signal is obtained and the voltage of the battery cell is lower than a preset threshold, the first heating assembly is controlled to stop heating, and the second heating assembly is controlled to start heating the second aerosol-forming substrate.

[0070] FIG. 7 is another flowchart of a control method for an aerosol generating device provided in an embodiment of the present application, and as shown in FIG. 7, the control method includes the following steps.

[0071] S21, a step of determining whether a power-on signal has been detected;

[0072] S22, when the controller detects a power-on signal, the first heating assembly is controlled to start heating and complete preheating. That is, it first enters the heating stage and then enters the holding stage. If the power-on signal is not detected, step (S21) is executed continuously.

[0073] S23, after preheating is completed, the controller controls the first heating assembly to be in the suction phase. That is, it controls the power provided by the battery cell (40) to the first heating assembly (10) so that the first heating assembly (10) is maintained at a preset temperature (T2).

[0074] S24, a step of determining whether a power-off signal is detected;

[0075] S25, if a power-off signal is not detected, determine whether an intake signal is detected, and if a power-off signal is detected, execute off and terminate.

[0076] S26, if a suction signal is detected, the first heating assembly is controlled to stop heating and the second heating assembly is controlled to start heating; otherwise, step (S23) is executed.

[0077] S27, a step of determining whether the heating duration of the second heating assembly is longer than or equal to a preset duration;

[0078] S28, if the heating duration of the second heating assembly is greater than or equal to the preset duration, the first heating assembly is controlled to start heating and the second heating assembly is controlled to stop heating, and then step (S23) is executed. If the heating duration of the second heating assembly is less than the preset duration, the first heating assembly is controlled to stop heating and the second heating assembly is controlled to perform heating.

[0079] The contents described above are merely embodiments of the present application and do not limit the scope of the patent of the present application. For the same reasons, any transformation of an equivalent structure or equivalent flow performed using the contents of the specification and attached drawings of the present application, or any application thereof directly or indirectly to other related technical fields, is included within the scope of protection of the present application.

Claims

Claim 1 An aerosol generating device characterized by comprising: a battery cell providing power; a first heating assembly that heats a first aerosol forming substrate to generate a first aerosol; a second heating assembly that heats a second aerosol forming substrate to generate a second aerosol, wherein the second aerosol is mixed with the first aerosol and then output; and a controller configured to detect whether an inhalation signal is acquired during the process of controlling the first heating assembly to heat the first aerosol forming substrate, wherein when the inhalation signal is acquired, the controller controls the first heating assembly to stop heating and controls the second heating assembly to start heating the second aerosol forming substrate. Claim 2 An aerosol generating device according to claim 1, wherein the controller also controls the second heating assembly to stop heating when the heating duration of the second heating assembly reaches a preset duration, and controls the first heating assembly to start heating again. Claim 3 An aerosol generating device according to paragraph 2, characterized in that the preset duration is shorter than the inhalation time of a single puff. Claim 4 An aerosol generating device according to paragraph 2, characterized in that the preset duration is 1 to 2 s. Claim 5 An aerosol generating device according to paragraph 2, characterized in that the controller is also configured to detect again whether an inhalation signal has been acquired during the process of controlling the first heating assembly to start heating again. Claim 6 An aerosol generating device according to claim 1, characterized in that the controller is configured to detect whether an inhalation signal has been acquired when outputting an aerosol inhalation possible notification signal. Claim 7 An aerosol generating device according to claim 1, wherein the process of the first heating assembly heating the first aerosol forming substrate includes a heating step and an inhalation step; the first aerosol forming substrate includes a solid-state aerosol forming substrate; and the controller is configured to detect whether an inhalation signal is acquired when the heating step of the first heating assembly is terminated or when the first heating assembly enters the inhalation step. Claim 8 An aerosol generating device according to claim 7, wherein the process of the first heating assembly heating the first aerosol forming substrate further includes a warming step between the heating step and the inhalation step; and wherein the controller is configured to detect whether an inhalation signal is acquired when the warming step of the first heating assembly is terminated. Claim 9 An aerosol generating device according to claim 7, characterized in that the controller controls the first heating assembly to start heating and enter a heating step when a power-on signal is detected. Claim 10 An aerosol generating device according to claim 1, wherein the controller controls the battery cell to provide electrostatic power to the second heating assembly. Claim 11 An aerosol generating device according to claim 1, further comprising an inhalation detector that detects inhalation of the aerosol generating device and outputs the inhalation signal. Claim 12 An aerosol generating device according to claim 1, wherein the controller is configured to acquire the voltage of the battery cell; and when the suction signal is acquired and the voltage of the battery cell is lower than a preset threshold, the first heating assembly is controlled to stop heating and the second heating assembly is controlled to start heating the second aerosol forming substrate. Claim 13 A control method for an aerosol generating device, wherein the aerosol generating device comprises: a battery cell providing power; a first heating assembly for heating a first aerosol forming substrate to generate a first aerosol; and a second heating assembly for heating a second aerosol forming substrate to generate a second aerosol, wherein the second aerosol is output after being mixed with the first aerosol; and wherein the control method comprises the steps of: controlling the first heating assembly to heat the first aerosol forming substrate; detecting whether an inhalation signal is acquired; and, when the inhalation signal is acquired, controlling the first heating assembly to stop heating and controlling the second heating assembly to start heating the second aerosol forming substrate. Claim 14 A method according to claim 13, further comprising the step of, after the step of controlling the second heating assembly to initiate heating of the second aerosol-forming substrate, controlling the second heating assembly to stop heating when the heating duration of the second heating assembly reaches a preset duration, and then controlling the first heating assembly to initiate heating again. Claim 15 A method according to claim 14, further comprising the step of detecting whether an intake signal is acquired during the process of controlling the first heating assembly to start heating again after the step of controlling the first heating assembly to start heating again. Claim 16 A method according to claim 13, characterized by detecting whether an inhalation signal is acquired when outputting an aerosol inhalation possible notification signal, or when the heating step of the first heating assembly ends, or when the first heating assembly enters the inhalation step, or when the warming step of the first heating assembly ends. Claim 17 In claim 13, the method further comprises the step of obtaining the voltage of the battery cell; and the step of controlling the first heating assembly to stop heating and the second heating assembly to start heating the second aerosol-forming substrate when the suction signal is obtained, wherein the step of controlling the first heating assembly to stop heating and the second heating assembly to start heating the second aerosol-forming substrate when the suction signal is obtained and the voltage of the battery cell is lower than a preset threshold is included. Claim 18 A method according to claim 13, wherein the step of controlling the first heating assembly to heat the first aerosol-forming substrate comprises: controlling the battery cell to supply a set energy to the first heating assembly during the energy supply duration of the energy supply cycle; and controlling the battery cell to stop supplying energy to the first heating assembly during the natural cooling time of the energy supply cycle.

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