Aerosol generating device and control method therefor

Abstract

An aerosol generating device (100) and a control method therefor. The aerosol generating device comprises a battery cell (40); a first heating assembly (10), which is used for heating a first aerosol-forming matrix to generate a first aerosol; a second heating assembly (20), which is used for heating a second aerosol-forming matrix to generate a second aerosol, wherein the second aerosol and the first aerosol are mixed and then output; and a controller, which is configured to detect, during the process of controlling the first heating assembly (10) to heat the first aerosol forming-matrix, whether a vaping signal is acquired, and control the first heating assembly (10) to stop heating and control the second heating assembly (20) to start heating if a vaping signal is acquired. During vaping, a first heating assembly (10) is controlled to stop heating and a second heating assembly (20) is controlled to start heating, such that the problem of the voltage of a battery cell (40) dropping lower and triggering protection interruption of a chip is avoided, thereby ensuring the normal vaping and experience of users.

Description

Aerosol generating device and control method thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application entitled “A Aerosol Generating Device and Its Control Method” filed with the Patent Office of China on December 15, 2023, with application number 202311732693.9, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of electronic atomization technology, and in particular to an aerosol generating device and a control method thereof. Background Art

[0004] In order to meet the different needs of users, hybrid aerosol generating devices, which have the functions of atomizing both solid matrix and liquid matrix, have become the first choice of users.

[0005] A hybrid aerosol generating device primarily comprises a first heating element for atomizing a solid substrate and a second heating element for atomizing a liquid substrate. During operation, the first and second heating elements operate simultaneously. For example, when the microphone sensor detects a puff, both elements are triggered to operate simultaneously.

[0006] In the above-mentioned hybrid aerosol generating device, when the first heating component and the second heating component are working simultaneously, it is easy to cause the battery cell voltage to drop even lower; if the battery cell voltage drops below the chip's loaded voltage protection point, for example, below 3V, a protection interrupt will be triggered, causing the chip to malfunction and affect the user's puffing experience.

[0007] Application Contents

[0008] The present application provides an aerosol generating device and a control method thereof to solve the problem that the first heating component and the second heating component work at the same time, resulting in a low cell voltage and triggering chip protection interruption.

[0009] In one aspect, the present application provides an aerosol generating device, comprising:

[0010] Battery cells, used to provide electricity;

[0011] a first heating assembly for heating the first aerosol-forming substrate to generate a first aerosol;

[0012] a second heating assembly for heating a second aerosol-forming substrate to generate a second aerosol; wherein the second aerosol is mixed with the first aerosol and then output;

[0013] The controller is configured to detect whether a puff signal is obtained during the process of controlling the first heating component to heat the first aerosol-forming substrate; if the puff signal is obtained, control the first heating component to stop heating and control the second heating component to start heating the second aerosol-forming substrate.

[0014] Another aspect of the present application provides a method for controlling an aerosol generating device, the aerosol generating device comprising:

[0015] Battery cells, used to provide electricity;

[0016] a first heating assembly for heating the first aerosol-forming substrate to generate a first aerosol;

[0017] a second heating assembly for heating a second aerosol-forming substrate to generate a second aerosol; wherein the second aerosol is mixed with the first aerosol and then output;

[0018] The control method includes:

[0019] detecting whether a puff signal is obtained during the process of controlling the first heating assembly to heat the first aerosol-forming substrate;

[0020] If the puff signal is obtained, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

[0021] The aerosol generating device and control method provided in the present application control the first heating component to stop heating and control the second heating component to start heating during puffing, thereby preventing the battery cell voltage from dropping further and triggering the chip protection interruption problem, thereby ensuring the user's normal puffing and experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0023] FIG1 is a schematic diagram of an aerosol generating device provided in an embodiment of the present application;

[0024] FIG2 is a schematic diagram of an aerosol generating device provided in an embodiment of the present application from another perspective;

[0025] FIG3 is a cross-sectional view of an aerosol generating device provided in an embodiment of the present application;

[0026] FIG4 is a schematic diagram of a temperature versus time curve of a heating assembly provided in an embodiment of the present application;

[0027] FIG5 is a schematic diagram of a curve of voltage and time provided in an embodiment of the present application;

[0028] FIG6 is a schematic flow chart of a method for controlling an aerosol generating device according to an embodiment of the present application;

[0029] FIG7 is another flow chart of a method for controlling an aerosol generating device according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed on" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "inside", "outside", "vertical", "horizontal", etc. used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0032] 1 to 3 , an aerosol generating device 100 includes a first heating assembly 10, a second heating assembly 20, a housing 30, and a battery cell 40. The housing 30 houses the first heating assembly 10, the second heating assembly 20, and the battery cell 40. The battery cell 40 is used to provide the electrical power required for the first heating assembly 10 and the second heating assembly 20 to operate.

[0033] The first heating assembly 10 is configured to heat a first aerosol-forming substrate to generate a first aerosol. The first aerosol-forming substrate comprises a solid aerosol-forming substrate, which may be an aerosol-generating article 201, such as a cigarette. The second heating assembly 20 is configured to heat a second aerosol-forming substrate to generate a second aerosol. The second aerosol-forming substrate comprises a liquid aerosol-forming substrate, which may be a tobacco liquid 202. The first heating assembly 10 and the second heating assembly 20 are in fluid communication, such that the second aerosol generated in the second heating assembly 20 can enter the first heating assembly 10 and mix with the first aerosol generated in the first heating assembly 10 before being output.

[0034] It is easy to understand that, since the second aerosol has a higher temperature, when the second aerosol passes through the aerosol generating product 201 , it can also heat and bake the aerosol generating product 201 , thereby providing the user with a better taste experience.

[0035] As can be understood in conjunction with FIG. 3 , the aerosol-generating device 100 defines a heating chamber 111 for housing at least a portion of the aerosol-generating article 201. The heating chamber 111 may be defined by a housing member of the aerosol-generating device 100. The second heating assembly 20 is in fluid communication with the heating chamber 111. Because the second heating assembly 20 and the heating chamber 111 are in fluid communication, the second aerosol can enter the heating chamber 111. Accordingly, when the aerosol-generating article 201 is placed in the heating chamber 111, the second aerosol can enter the interior of the aerosol-generating article 201 as the user draws on the aerosol.

[0036] The first heating assembly 10 may be a contact heating assembly, at least partially in contact with the aerosol-generating article 201. In some embodiments, the first heating assembly 10 may include a coil for generating a changing magnetic field and a susceptor for inducing the changing magnetic field to generate eddy currents. The coil is disposed around the outer wall of the heating chamber 111, and the susceptor is disposed within the heating chamber 111, with at least a portion of the coil being inserted into the aerosol-generating article 201 to heat the aerosol-generating article 201 from the center. Alternatively, the susceptor may be wrapped around the aerosol-generating article 201 to heat the aerosol-generating article 201 from the circumference.

[0037] In some embodiments, the first heating assembly 10 may include a metal heating mesh that can be wrapped around the outer wall of the heating chamber 111 and transfer heat from the circumference to the interior of the heating chamber 111 via resistive heating to heat the aerosol-generating article 201. In some embodiments, the first heating assembly 10 may include a heating needle or heating sheet that is inserted into the aerosol-generating article 201 and heats the aerosol-generating article 201 from the center via resistive heating. In some embodiments, the first heating assembly 10 may also include a heating plate that is located at the lower end of the aerosol-generating article 201 but does not extend into the aerosol-generating article 201.

[0038] The first heating assembly 10 may also be a non-contact heating assembly, such as an infrared heating assembly. The first heating assembly 10 includes an infrared radiator (not shown) that generates infrared radiation for radiative heating of the aerosol-generating article 201. The heating may be performed from the center or the circumference of the aerosol-generating article 201.

[0039] In some embodiments, the first heating component 10 may include a heating base 11, an infrared electric heating coating (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 accommodating the aerosol generating product 201 is formed inside it. The infrared electric heating coating is coated on the outside of the heating base 11. The first electrode is arranged on the outside of the heating base 11 and is in contact with the infrared electric heating coating. The second electrode is arranged on the outside of the heating base 11 and is in contact with the infrared electric heating coating. At least a portion of the infrared electric heating coating is located between the first electrode and the second electrode. The first electrode and the second electrode are used to be electrically connected to the battery core 40 so that at least a portion of the infrared electric heating coating receives the heat generated by the electric power, thereby generating infrared rays for radiative heating of the aerosol generating product 201.

[0040] The second heating assembly 20 includes a liquid reservoir housing 21 and a liquid-conducting element 22. The liquid reservoir housing 21 defines a liquid storage chamber 211 for storing a second aerosol-forming substrate, such as tobacco oil 202. The liquid-conducting element 22 is in fluid communication with the liquid reservoir chamber 211 and is configured to draw tobacco oil 202 from the liquid reservoir chamber 211 and deliver the tobacco oil 202 to the heating element 23. The liquid-conducting element 22 can be made of a material having capillary channels or pores, such as a hard or rigid capillary structure such as fiber cotton, porous ceramic, fiberglass rope, porous glass-ceramic, or porous glass. When energized, the heating element 23 is configured to heat at least a portion of the tobacco oil 202 drawn by the liquid-conducting element 22 to generate an aerosol. The aerosol then escapes and is released into the atomizing chamber 23, which is in fluid communication with the heating chamber 111. The aerosol generated by the tobacco oil 202 then flows into the heating chamber 111 and enters the aerosol-generating article 201 therein.

[0041] Furthermore, the housing 30 is provided with an air inlet 31 for allowing external air to enter the aerosol generating device 100. The air inlet 31 is in fluid communication with the atomizing chamber 23, and further in fluid communication with the heating chamber 111, forming an airflow path for the aerosol generating device 100, as indicated by arrow route R1 in FIG3 . Through this airflow path, the second aerosol in the atomizing chamber 23 can be carried into the heating chamber 111, and then enter the aerosol generating article 201, where it mixes with the first aerosol generated by the heated volatilization of the aerosol generating article 201. The user can then inhale the mixed aerosol through the aerosol generating article 201. Compared to a single aerosol, the mixed aerosol has a richer flavor and a better inhalation experience. In other examples, it is also feasible that the second aerosol can be directly mixed with the first aerosol generated by the heated volatilization of the aerosol generating article 201 without passing through the heating chamber 111, and then be 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, thereby mixing with the first aerosol in the mixing chamber.

[0042] Furthermore, the aerosol generating device 100 also includes a puff detector 50 and a circuit board 60. The circuit board 60 is equipped with a controller and a switch, such as an MCU (microcontroller or microcontroller unit). The switch directs current between the battery cell 40 and the heating element 23. The MCU can output a PWM signal with a certain frequency and duty cycle to the switch, thereby controlling the power provided by the battery cell 40 to the heating element 23. The puff detector 50 and the battery cell 40 are both electrically connected to the circuit board 60. The battery cell 40 is a rechargeable battery, such as a lead-acid battery, a nickel-cadmium battery, a nickel-iron battery, a nickel-metal hydride battery, a lithium-ion battery, etc. The puff detector 50 is used to detect puffing of the aerosol generating device 100 and output a puff signal. Specifically, the puff detector 50 can be an airflow sensor, which is fluidically connected to the air inlet 31. The airflow sensor senses changes in air pressure within the aerosol generating device 100 and generates a puff signal based on the pressure changes. The puff signal is then transmitted to the controller of the circuit board 60. It is understandable that detecting whether the aerosol generating device 100 is inhaled is not limited to the above-mentioned situation; in other examples, detection and judgment can also be made through other sensors, such as temperature sensors, pressure sensors, etc.; or parameters detected by the circuit, such as voltage, current, power, etc., can be used to detect and judge whether the aerosol generating device 100 is inhaled.

[0043] When the user inserts the aerosol generating product 201 into the heating chamber 111 in the first heating component 10 and inhales on the aerosol generating product 201, under the action of the suction force, external air enters the aerosol generating device 100, part of which flows to the heating chamber 111 through the airflow path R1, and the other part flows to the airflow sensor. The airflow sensor senses the negative pressure generated inside the aerosol generating device, and then generates a sensing signal and sends the sensing signal to the controller of the circuit board 60. The controller determines that the user is inhaling and needs to use the aerosol generating device 100, and the controller can control the battery cell 40 to provide the power required for heating to the first heating component 10 and the second heating component 20.

[0044] Furthermore, the aerosol generating device 100 further includes a bracket 80. The bracket 80 defines a receiving cavity (not shown), and the second heating component 20 is fixed in the receiving cavity to fix the second heating component 20.

[0045] Based on the above aerosol generating device 100 , in one example, the controller is configured to control the first heating component 10 to start heating and enter a temperature rising stage when a power-on signal is detected.

[0046] The heating stage can be the time period t0 to t1 shown in Figure 4. During this heating stage, the temperature of the first heating component 10 rises from the initial temperature T0 to the target temperature T1. The initial temperature T0 can be the ambient temperature or higher than the ambient temperature. The target temperature T1 is between 150°C and 300°C, specifically 220°C, 250°C, etc. Generally, during this heating stage, the controller controls the power provided by the battery cell 40 to the first heating component 10 to be the maximum power, so that the temperature of the first heating component 10 is quickly raised to the target temperature T1, shortening the user's puff waiting time. The power-on signal can be a key signal from operating the aerosol generating device 100, or other indication signal.

[0047] After the heating stage is finished, the controller controls the first heating assembly 10 to enter the heat preservation stage.

[0048] The holding stage is the time period from t1 to t2 shown in FIG4 . During this holding stage, the controller controls the power provided by the battery cell 40 to the first heating assembly 10 (the power corresponding to the holding stage is less than the power corresponding to the heating stage) and controls the first heating assembly 10 to maintain the target temperature T1 for a period of time, for example, 7 to 15 seconds, to provide sufficient energy to the aerosol-generating article 201 and generate the first aerosol.

[0049] At time t2 or the end of the heat preservation stage, the controller outputs a prompt signal for the inhalable aerosol. Specifically, a prompting operation can be performed according to the prompt signal for the inhalable aerosol output by the controller through a prompting device (not shown in the figure) connected to the controller. For example: the prompting device is a vibration motor, and the vibration motor vibrates to remind the user that the aerosol can be inhaled according to the prompt signal for the inhalable aerosol output by the controller (including the start signal for controlling the operation of the vibration motor); the prompting device is an LED light, and the LED light is always on or flashing according to the prompt signal for the inhalable aerosol output by the controller to remind the user to inhale the inhalable aerosol.

[0050] It should be noted that the above-mentioned heating stage and heat preservation stage can be collectively referred to as the preheating stage, and the duration of the preheating stage is generally between 15 and 30 seconds. During the heating stage and the heat preservation stage, the second heating component 20 is not activated for heating. In other examples, it is also feasible to omit the above-mentioned heat preservation stage.

[0051] After the heat preservation stage is finished, the controller controls the first heating assembly 10 to enter the suction stage.

[0052] The puffing stage is the time period t2 to t3 shown in Figure 4 , and the value of the time period t2 to t3 can be 180 seconds or the duration of 15 puffs. During the puffing stage, the controller turns on the detection of the puff detector 50 .

[0053] In one example, if the puff signal output by the puff detector 50 is not obtained, the controller controls the power provided by the battery cell 40 to the first heating component 10 (the power corresponding to the puff stage is less than the power corresponding to the heat preservation stage) so that the first heating component 10 is maintained at a preset temperature T2, and the preset temperature T2 is less than the target temperature T1. In a specific implementation, the power provided by the battery cell 40 to the first heating component 10 by the controller is usually fixed. For example, when the temperature of the first heating component 10 is relatively low (less than the preset temperature T2), the controller controls the power provided by the battery cell 40 to the first heating component 10 to be a first power, so that the temperature of the first heating component 10 gradually increases; when the temperature of the first heating component 10 is relatively high (greater than the preset temperature T2), the controller controls the power provided by the battery cell 40 to the first heating component 10 to be a second power less than the first power, so that the temperature of the first heating component 10 gradually decreases, thereby causing the temperature of the first heating component 10 to fluctuate around the preset temperature T2.

[0054] If a puff signal is received from the puff detector 50, the controller controls the first heating component 10 to stop heating and the second heating component 20 to start heating. Because the second heating component 20 can quickly atomize the second aerosol-forming matrix and generate the second aerosol, the user can inhale the mixed aerosol. When the controller receives the puff signal from the puff detector 50, it starts a timer (which can be internal or external). When the timer reaches a preset time, the controller controls the second heating component 20 to stop heating and controls the first heating component 10 to start heating again. Generally, the preset time is less than the duration of a puff, for example, between 1 and 2 seconds, and specifically, 1.5 seconds. It is understood that the preset time can also be slightly longer than or equal to the duration of a puff. In this way, during a puff, the first heating component 10 stops heating while the second heating component 20 continues heating. After the puff is completed, the first heating component 10 starts heating and the second heating component 20 stops heating.

[0055] When the controller controls the first heating component 10 to stop heating and controls the second heating component 20 to start heating, the controller's operating voltage does not drop too low, thereby triggering a protective interruption and causing the device to malfunction. This can be seen in the graph shown in Figure 5. As shown in the figure, curve A is a graph showing the relationship between voltage and time when the controller controls the first heating component 10 to stop heating and controls the second heating component 20 to start heating, while curve B is a graph showing the relationship between voltage and time when the controller controls the first heating component 10 and the second heating component 20 to start heating simultaneously (both cases are when a puff signal output by the puff detector 50 is obtained).

[0056] In one example, the controller is configured to obtain the voltage of the battery cell; if the puff signal is obtained and the voltage of the battery cell is lower than a preset threshold, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

[0057] In this example, if the cell voltage is high, such as the full voltage immediately after charging, even if the first heating component 10 and the second heating component 20 are activated simultaneously, the controller's operating voltage will not drop below the load voltage protection point. Therefore, when the cell voltage drops, for example, to 3.6V or 3.5V, the first heating component 10 and the second heating component 20 can be controlled to alternately activate heating.

[0058] 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 constant power to the second heating assembly 20. As can be seen from curve A in Figure 5 , the operating voltage is relatively stable and does not fluctuate due to the heating of the first heating assembly 10. Therefore, the consistency of the second heating assembly 20's puff-by-puff performance is ensured, ensuring a consistent puff experience.

[0059] In a specific implementation, the controller can control the battery cell 40 to provide constant power to the second heating component 20 based on a predetermined duty cycle of the switch tube or a duty cycle of the switch tube calculated in real time. For example, when controlling the second heating component 20 to start heating, the load voltage for turning on the second heating component 20 is determined, and the duty cycle of the PWM signal output to the switch tube is calculated based on the resistance value (known) of the heating element 23 and the preset output power, thereby controlling the battery cell 40 to provide constant power to the second heating component 20. Assuming that the load voltage for turning on the second heating component 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 switch tube is calculated as:

[0060] The above duty cycle can also be calculated when a power-on signal is detected. When the second heating component 20 is subsequently controlled to start heating, the calculated duty cycle is used to directly control the switch tube.

[0061] In one example, during the puffing phase, i.e., the time period from t2 to t3 shown in FIG. 4 , the method for maintaining the first heating assembly 10 at the preset temperature T2 may be different from the aforementioned method for controlling the power provided to the first heating assembly 10 by the battery cell 40. For example, the controller controls the battery cell 40 to provide a fixed amount of energy to the first heating assembly 10 to maintain the first heating assembly 10 at the preset temperature T2.

[0062] Specifically, it is assumed that the fluctuation of the first heating component 10 above and below the preset temperature T2 once is an energy supply cycle. The energy supply cycle includes an energy supply duration phase and a natural cooling time phase (the unit natural cooling time refers to the time required for the temperature of the first heating component 10 to drop by one degree Celsius after the overall design of the product is completed; the natural cooling time can be the acceptable temperature drop range of the first heating component 10 determined according to the needs of the product design, thereby determining the time to stop supplying energy. The natural cooling time can 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 component 10. If the energy supplied by the battery cell 40 to the first heating component 10 reaches the set energy, the controller controls the battery cell 40 to stop supplying energy, otherwise it continues to supply energy. Due to the lack of energy supply, the temperature of the first heating component 10 begins to drop, and the rate of drop is determined by the temperature drop capability of the first heating component 10; if the aerosol generating device 100 is inhaled during this time period, the rate of drop will be relatively faster.

[0063] In this example, by controlling the first heating assembly 10 and the second heating assembly 20 to alternately activate heating, the problem of inconsistent puff feel caused by inconsistent power supplied to the second heating assembly 20 between consecutive puffs can also be avoided. For example, if the first heating assembly 10 is always activated for heating, during the energy supply process, the period when the controller controls the battery cell 40 to supply energy to the first heating assembly 10 and the period when the controller controls the battery cell 40 to stop supplying energy will have different corresponding loads. When the duty cycle of the switching transistor is calculated according to the aforementioned method, the power of the first heating assembly 10 during these two periods will be inconsistent.

[0064] In one example, when the timer reaches a preset time, the controller controls the second heating assembly 20 to stop heating and controls the first heating assembly 10 to restart heating. The controller then detects whether a puff signal is received again, that is, to determine whether the user has taken another puff. If the controller receives a puff signal again, the aforementioned control steps are repeated until puffing stops or a shutdown signal is received.

[0065] FIG6 is a flow chart of a control method for an aerosol generating device provided in an embodiment of the present application. For details about the aerosol generating device, please refer to the above section. As shown in FIG6 , the control method includes the following steps:

[0066] S11. During the process of controlling the first heating component to heat the first aerosol-forming substrate, detecting whether a puff signal is obtained;

[0067] S11 . If the puff signal is obtained, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

[0068] In one example, when the heating time of the second heating component reaches a preset time, the second heating component is controlled to stop heating and the first heating component is controlled to start heating again.

[0069] In one example, the predetermined duration is less than the duration of a puff.

[0070] In one example, the preset time duration is between 1 and 2 seconds.

[0071] In one example, during the process of controlling the first heating component to start heating again, it is detected again whether the suction signal is obtained.

[0072] In one example, when a prompt signal indicating that the aerosol can be inhaled is output, it is detected whether a puffing signal is obtained.

[0073] In one example, the process of heating the first aerosol-forming substrate by the first heating component includes a heating stage and a suction stage;

[0074] At the end of the heating phase of the first heating component or when the first heating component enters the suction phase, it is detected whether a suction signal is obtained.

[0075] In one example, the process of heating the first aerosol-forming substrate by the first heating component further includes a heat preservation stage between the heating stage and the inhalation stage;

[0076] At the end of the heat preservation stage of the first heating component, it is detected whether a suction signal is obtained.

[0077] In one example, when a power-on signal is detected, the first heating component is controlled to start heating and enter a temperature rising stage.

[0078] In one example, the battery cell is controlled to provide constant power to the second heating element.

[0079] In one example, the voltage of the battery cell is obtained; if the puff signal is obtained and the voltage of the battery cell is lower than a preset threshold, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

[0080] FIG7 is another flow chart of a control method for an aerosol generating device provided in an embodiment of the present application. As shown in FIG7 , the control method includes the following steps:

[0081] S21, determining whether a power-on signal is detected;

[0082] S22: When the controller detects a power-on signal, it controls the first heating element to start heating and complete preheating. This means the heating phase begins before the heat-maintaining phase. If no power-on signal is detected, the process continues with step S21.

[0083] S23. After preheating is completed, the controller controls the first heating component to be in the suction stage, that is, controls the power provided by the battery cell 40 to the first heating component 10 so that the first heating component 10 is maintained at a preset temperature T2.

[0084] S24, determining whether a shutdown signal is detected;

[0085] S25: If no shutdown signal is detected, determine whether a suction signal is detected; if a shutdown signal is detected, shut down and end.

[0086] S26. If the suction signal is detected, the first heating component is controlled to stop heating and the second heating component is controlled to start heating; otherwise, step S23 is executed.

[0087] S27, determining whether the heating time of the second heating component is greater than or equal to a preset time;

[0088] S28: If the heating time of the second heating component is greater than or equal to the preset time, the first heating component is controlled to start heating and the second heating component is controlled to stop heating, and then the process continues with step S23. If the heating time of the second heating component is less than the preset time, the first heating component is controlled to stop heating and the second heating component is controlled to continue heating.

[0089] The above description is merely an embodiment 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 applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An aerosol generating device, characterized in that: include: Battery cells, used to provide electricity; a first heating assembly for heating the first aerosol-forming substrate to generate a first aerosol; A second heating component, the second heating component is used to heat a second aerosol-forming substrate to generate a second aerosol; wherein the second aerosol is mixed with the first aerosol and then output; The controller is configured to detect whether a suction signal is obtained during the process of controlling the first heating component to heat the first aerosol-forming substrate; if the suction signal is obtained, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

2. The aerosol generating device according to claim 1, characterized in that: The controller is also configured to control the second heating component to stop heating and control the first heating component to start heating again when the heating time of the second heating component reaches a preset time.

3. The aerosol generating device according to claim 2, characterized in that: The preset duration is less than the duration of one puff.

4. The aerosol generating device according to claim 2, characterized in that: The preset time length is between 1 and 2 seconds.

5. The aerosol generating device according to claim 2, characterized in that: The controller is further configured to detect again whether a suction signal is obtained during the process of controlling the first heating component to start heating again.

6. The aerosol generating device according to claim 1, characterized in that: The controller is configured to detect whether a puff signal is obtained when outputting a prompt signal for the inhalable aerosol.

7. The aerosol generating device according to claim 1, characterized in that: The process of heating the first aerosol-forming substrate by the first heating component includes a heating stage and a suction stage; the first aerosol-forming substrate includes a solid aerosol-forming substrate; The controller is configured to detect whether a suction signal is obtained when the heating phase of the first heating component ends or when the first heating component enters a suction phase.

8. The aerosol generating device according to claim 7, characterized in that: The process of heating the first aerosol-forming substrate by the first heating component also includes a heat preservation stage between the heating stage and the suction stage; The controller is configured to detect whether a suction signal is obtained at the end of the insulation phase of the first heating component.

9. The aerosol generating device according to claim 7, characterized in that: The controller is configured to control the first heating component to start heating and enter a temperature rise phase when a power-on signal is detected.

10. The aerosol generating device according to claim 1, characterized in that The controller is configured to control the battery cell to provide constant power to the second heating assembly.

11. The aerosol generating device according to claim 1, characterized in that: It also includes a puff detector for detecting puffing of the aerosol generating device to output the puff signal.

12. The aerosol generating device according to claim 1, characterized in that: The controller is configured to obtain the voltage of the battery cell; if the inhalation signal is obtained and the voltage of the battery cell is lower than a preset threshold, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

13. A method for controlling an aerosol generating device, characterized in that: The aerosol generating device comprises: Battery cells, used to provide electricity; a first heating assembly for heating the first aerosol-forming substrate to generate a first aerosol; A second heating component is used to heat a second aerosol-forming substrate to generate a second aerosol; wherein the second aerosol is mixed with the first aerosol and then output; The control method comprises: controlling the first heating component to heat the first aerosol-forming substrate; Detecting whether a suction signal is obtained; If the inhalation signal is obtained, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

14. The method according to claim 13, characterized in that After controlling the second heating component to initiate heating of the second aerosol-forming substrate, the method further comprises: When the heating time of the second heating component reaches a preset time, the second heating component is controlled to stop heating and the first heating component is controlled to start heating again.

15. The method according to claim 14, characterized in that After the controlling the first heating component to start heating again, the method further comprises: In the process of controlling the first heating component to start heating again, it is detected again whether the suction signal is obtained.

16. The method according to claim 13, characterized in that When outputting a prompt signal for inhalable aerosol, or when the heating stage of the first heating component ends, or when the first heating component enters the inhalation stage, or when the insulation stage of the first heating component ends, it is detected whether an inhalation signal is obtained.

17. The method according to claim 13, characterized in that The method further comprises: Obtaining the voltage of the battery cell; If the puff signal is obtained, controlling the first heating component to stop heating and controlling the second heating component to start heating the second aerosol-forming substrate comprises: If the inhalation signal is obtained and the voltage of the battery cell is lower than a preset threshold, the first heating component is controlled to stop heating and the second heating component is controlled to start heating the second aerosol-forming substrate.

18. The method according to claim 13, characterized in that The controlling the first heating component to heat the first aerosol-forming substrate comprises: During the energy supply duration phase of the energy supply cycle, the battery cell is controlled to supply set energy to the first heating component; during the natural cooling time phase of the energy supply cycle, the battery cell is controlled to stop supplying energy to the first heating component.

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