An aerosol-generating device, a heating control method thereof, and a storage medium

Abstract

The application provides an aerosol generating device and a heating control method and a storage medium thereof. The heating control method comprises the following steps: S1: a control component acquires a puffing feature parameter; S2: the control component analyzes the puffing feature parameter, compares the puffing feature parameter with a preset threshold, determines a temperature state of an aerosol forming substrate and a puffing state of a user; and S3: the control component adjusts heating of the aerosol forming substrate by a heating system according to the temperature state and the puffing demand. The application acquires the puffing feature parameter, determines the temperature state of the aerosol forming substrate and the puffing state of the user according to the puffing feature parameter, and then realizes on-demand supply of residual heat according to the temperature state and the puffing state and an intelligent temperature control algorithm, effectively recycles and utilizes the excess heat generated by the heating element, avoids energy waste, and significantly improves the energy utilization efficiency of the heat-not-burn smoking set.

Description

Technical Field

[0001] This application belongs to the field of novel tobacco products, specifically relating to an aerosol generating device, its heating control method, and storage medium. Background Technology

[0002] Currently, the temperature control systems of most heated tobacco products operate independently, failing to fully consider the utilization value of waste heat. This results in ineffective use of waste heat during the heating process, along with a significant thermal lag effect—a delay in temperature adjustment—impacting the user experience. For example, when the cigarette temperature approaches the target temperature, the heating element continues to operate at high power, generating a large amount of unused waste heat; conversely, when changes in the user's inhalation force cause a rapid drop in cigarette temperature, the temperature control system cannot quickly respond to replenish the heat, severely impacting user experience and product performance. Existing temperature control technologies cannot achieve the rational distribution and effective utilization of waste heat, making it difficult to meet users' higher demands for temperature control and energy utilization in heated tobacco products.

[0003] Patent CN111150115A discloses a waste heat utilization type heated non-combustible cigarette device. It recovers and utilizes the waste heat of the heating module through a waste heat conduction component, uses a material with a large specific heat capacity for insulation, mixes negative oxygen ions into the drawn air, and preheats the drawn air twice. The tobacco is then fully heated by the heating element and the preheated air, thereby solving technical defects such as the cigarette rod being too hot to handle, low energy utilization rate, and poor smoke effect. However, this method requires additional preheating time, has a thermal lag effect, and affects the user experience. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide an aerosol generating apparatus, its heating control method, and a storage medium to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: In a first aspect, this application provides a heating control method for an aerosol generating device. The aerosol generating device includes a heating chamber, a heating system, and a control component. The heating system is used to heat an aerosol forming matrix contained in the heating chamber during operation to generate aerosols. The control component is used to generate control signals. The heating control method includes: step S1: the control component acquires suction characteristic parameters; step S2: the control component analyzes the suction characteristic parameters and compares them with preset thresholds to determine the temperature state of the aerosol forming matrix and the user's suction state; step S3: the control component adjusts the heating system to heat the aerosol forming matrix according to the temperature state and suction requirements.

[0006] Furthermore, the suction characteristic parameters include the matrix temperature. Step S2 includes: Step S21: The control component detects whether the matrix temperature exceeds the first preset value: If so, it is determined that the aerosol forming matrix has reached the target heating temperature.

[0007] Furthermore, the suction characteristic parameters include suction pressure. Step S2 includes: Step S22: The control component detects whether the change in suction pressure exceeds a second preset value; if so, it is determined that the user's suction force has increased.

[0008] Furthermore, the aspiration characteristic parameters also include matrix temperature. Step S2 includes: Step S23: The control component detects whether the change in matrix temperature exceeds a third preset value: If so, it is determined that the aerosol has been aspirated.

[0009] Furthermore, the suction characteristic parameters also include ambient humidity. Step S2 includes: Step S24: The control component detects whether the ambient humidity exceeds the fourth preset value: If so, it is determined that there is a risk of condensation in the aerosol forming matrix.

[0010] Furthermore, the heating system includes a waste heat recovery component and a heating component. Step S3 includes: Step S31: The control component starts the waste heat recovery component of the aerosol generation device according to the temperature status and suction requirements; Step S32: The control component controls the waste heat recovery component and / or the heating component to heat the aerosol forming matrix.

[0011] Further, step S32 includes: step S321: the control component controls the waste heat recovery component to recover the excess heat generated by the heating component and use it to heat the aerosol forming matrix; step S322: the control component determines whether the waste heat recovery component heats the aerosol forming matrix: if not, it controls the heating component to heat the aerosol forming matrix.

[0012] Secondly, this application provides an aerosol generation device, which includes: a heating chamber, a heating system, and a control component. The heating system is used to heat an aerosol-forming matrix contained in the heating chamber during operation to generate aerosols. The control component is used to generate control signals and includes: an acquisition module, an analysis module, and an adjustment module. The acquisition module is used to acquire suction characteristic parameters; the analysis module is used to analyze the suction characteristic parameters and compare them with preset thresholds to determine the temperature state of the aerosol-forming matrix and the user's suction state; the adjustment module is used to adjust the heating system to heat the aerosol-forming matrix according to the temperature state and suction requirements.

[0013] Furthermore, the heating system includes a heating component and a waste heat recovery component. The waste heat recovery component includes a heat exchanger and an energy storage unit. The heat exchanger is in thermal contact with the heating component and is used to transfer heat to the energy storage unit. The energy storage unit is used to convert the heat into thermal energy for storage.

[0014] Thirdly, this application provides a computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, implements the steps of the above-described heating control method.

[0015] Among them, aerosol-generating products are smoking products, including aerosol-forming matrix, which generates aerosols through heating that can be directly inhaled into the lungs of the user through the user's mouth.

[0016] Preferably, the aerosol forming matrix is ​​a solid aerosol forming matrix. The aerosol forming matrix may include both solid and liquid components.

[0017] Preferably, the aerosol-forming matrix includes nicotine. In some preferred embodiments, the aerosol-forming matrix includes tobacco.

[0018] An aerosol generating device is used to describe an apparatus that interacts with an aerosol-forming matrix of an aerosol-generating article to generate an aerosol. Preferably, the aerosol generating device is a smoking device that interacts with the aerosol-generating matrix of the aerosol-generating article to generate an aerosol that can be directly inhaled into the user's lungs through the user's mouth. The aerosol generating device may be a fixator for a smoking article.

[0019] A sensor is a material that can convert electromagnetic energy into heat. When placed in a undulating electromagnetic field, the eddy currents induced in the sensor cause it to heat up. When an elongated sensor is positioned in thermal contact with an aerosol-forming matrix, the aerosol-forming matrix is ​​heated by the sensor.

[0020] The aerosol generating article is designed to engage with an electrically operated aerosol generating device, including an induction heating source. The induction heating source or sensor generates a fluctuating electromagnetic field to heat a sensor located within the fluctuating electromagnetic field. In use, the aerosol generating article engages with the aerosol generating device such that the sensor is located within the fluctuating electromagnetic field generated by the sensor.

[0021] The length of the receptor is greater than its width or thickness, for example, more than twice its width or thickness. Therefore, the receptor can be described as an elongated receptor. The receptor can be arranged generally longitudinally within the aerosol-generating matrix. This means that the length of the elongated receptor is arranged approximately parallel to the longitudinal direction of the aerosol-generating matrix, for example, within plus or minus 10 degrees. In a preferred embodiment, the elongated receptor can be located at a radial center position within the aerosol-generating matrix and extend along the longitudinal axis of the aerosol-generating matrix.

[0022] The sensor can be made of any material capable of being heated inductively to a temperature sufficient to generate an aerosol matrix. Preferred sensors include metals or carbon. Preferred sensors may include ferromagnetic materials, such as ferrite, ferromagnetic steel, or stainless steel. Suitable sensors may be aluminum or may include aluminum. Preferred sensors may be made of 400 series stainless steel, such as grade 410, 420, or 430 stainless steel. Different materials will consume different amounts of energy when placed in an electromagnetic field with similar frequency and field strength. Therefore, parameters of the sensor, such as material type, length, width, and thickness, can be varied within a known electromagnetic field to provide the desired energy consumption.

[0023] The receptors are arranged in thermal contact with the aerosol-forming matrix. Therefore, when the receptors are heated, the aerosol-forming matrix is ​​heated and forms an aerosol. In one embodiment, a heating element including the receptors is inserted into the aerosol-forming matrix, and the aerosol-generating apparatus may include one or more elongated heating elements. In another embodiment, the aerosol-generating matrix may include the receptors; alternatively, the aerosol-generating matrix may include multiple receptors, and the receptors may be elongated, granular, mesh-like, radial, tubular, hourglass-shaped, spiral, etc.

[0024] The aerosol generating device can generate a fluctuating electromagnetic field between approximately 1 MHz and 30 MHz, for example, between 2 MHz and 10 MHz, or for example, between 5 MHz and 7 MHz, through the induction coil of the induction emitter.

[0025] The induction coil material should be a material with good conductivity, such as metal; in addition, in this patent, the induction coil material should also have good elastic deformation ability, and can be spring steel, gold, silver or other metals.

[0026] The power source can be any suitable power source, such as a DC voltage source, like a battery. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source can be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.

[0027] The control element can be a simple switch. Alternatively, the control element can be a circuit and may include one or more microprocessors or microcontrollers.

[0028] An aerosol generation system may include an aerosol generation device and one or more aerosol generation articles, wherein the aerosol generation device is configured with a corresponding number of heating chambers to contain the aerosol generation articles.

[0029] As can be seen from the above technical solutions, the advantages and positive effects of the aerosol generating device and its heating control method proposed in this application are as follows: This application obtains suction characteristic parameters, determines the temperature state of the aerosol forming matrix and the user's suction state based on the suction characteristic parameters, and then uses an intelligent temperature control algorithm to achieve on-demand energy supply of waste heat based on the temperature state and suction state, effectively recovering and utilizing the excess heat generated by the heating element, avoiding energy waste, and significantly improving the energy utilization efficiency of the heated non-combustible smoke appliance. Meanwhile, the heating strategy is adjusted in real time according to the user's smoking needs and the temperature of the cigarette, prioritizing the use of residual heat for temperature regulation, responding quickly to temperature changes, effectively reducing thermal hysteresis, and making the cigarette temperature more stable. Furthermore, its precise temperature control and efficient waste heat utilization provide users with a more stable and comfortable smoking experience, meeting users' requirements for the quality of heated non-combustible smoke devices. Attached Figure Description

[0030] The above description of this application and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solutions.

[0031] Figure 1 This is a structural diagram of the aerosol generating apparatus of this application; Figure 2 This is a distribution diagram of the sensor components in this application; Figure 3 This is a flowchart of the heating control method of this application.

[0032] The reference numerals in the attached figures are explained as follows: Power supply module: 1; Control components: 2; Sensor components: 3; Temperature sensor: 331; Pressure sensor: 332; Flow sensor: 333; Waste heat recovery components: 40; Heat exchanger: 41; Energy storage units: 42; Heating system: 5. Detailed Implementation

[0033] The detailed features and advantages of this application are described below in the specific embodiments. The content of this description is sufficient to enable any person skilled in the art to understand the technical content of this application and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this application.

[0034] The invention will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of the invention. It will be apparent to those skilled in the art that the invention can also be used in a variety of other applications.

[0035] In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined to have the following meanings: The singular forms “a” and “the” include their corresponding plural forms. “At least one” means one or more, and “more” means two or more. “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0036] All figures used to represent component amounts, properties (e.g., molecular weight), reaction conditions, etc., should be considered to be modified in all cases by the terms "within the unavoidable margin of error" or "about". Therefore, the numerical values ​​set forth herein are approximate and may vary depending on the desired properties sought to be obtained by the present invention. The principles of equivalents, which are applied to a minimum and not intended to limit the scope of the claims, should be applied, for example, each value should be interpreted at least according to the reported significant digits and by applying conventional rounding techniques.

[0037] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0038] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] Unless otherwise indicated, the following abbreviations have the following meanings, and any other abbreviations used herein but not defined have their generally accepted standard meanings: All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0040] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0041] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0043] Please refer to Figure 1 This application provides an aerosol generating device, which includes: a heating chamber, a heating system 5, a power supply module 1, and a control component 2.

[0044] The heating system 5 is used to heat the aerosol forming matrix contained in the heating chamber during operation to generate aerosols, the control component 2 is used to generate control signals, and the power supply module 1 is used to supply power to the heating system 5 and the control component 2.

[0045] Control component 2 includes: an acquisition module, an analysis module, and an adjustment module.

[0046] The acquisition module is used to obtain the suction feature parameters.

[0047] The acquisition module can be composed of sensor assembly 3, which includes temperature sensor 331, pressure sensor 332, flow sensor 333 and humidity sensor. Temperature sensor 331 collects the temperature of heating element, cigarette temperature and smoking device shell temperature. Pressure sensor 332 collects the user's inhalation pressure. Flow sensor collects airflow velocity and flow data.

[0048] For details, please refer to Figure 2 The temperature sensor 331 can be a thermistor temperature sensor attached to the bottom of the heating chamber near the surface of the heating element to ensure that the temperature changes of the heating element and the cigarette can be detected in real time and accurately. It can be embedded inside the outer shell of the cigarette device, 2mm away from the surface, and fixed with epoxy resin potting. It is used to monitor the overall temperature of the cigarette device to prevent the outer shell temperature from being too high, which may cause user discomfort or safety hazards. The overall layout enables the system to capture temperature changes in a timely manner, providing a guarantee for the timely recovery and utilization of waste heat.

[0049] The pressure sensor 332 can be a MEMS pressure sensor that works based on the piezoresistive effect. It can be encapsulated in the middle of the airflow channel and has an air inlet with a diameter of 1 mm. The accuracy is ±0.05 kPa. The air inlet of the sensor is perpendicular to the airflow direction. It monitors the pressure changes generated when the user inhales in real time. When the pressure value exceeds, for example, 0.1 kPa, it determines that the user has started inhaling and records the pressure change curve at a sampling frequency of 20 Hz. By analyzing the peak value, slope and other parameters of the curve, the user's inhalation force and frequency can be determined.

[0050] By analyzing the pressure change curve, the system can determine the user's inhalation force and frequency, thereby predicting the trend of cigarette temperature change and adjusting the heating strategy and waste heat utilization method in advance to further reduce the thermal hysteresis effect.

[0051] The flow sensor 333 can be a thermal flow sensor, which works based on the principle of heat diffusion. It is installed at the air outlet near the mouthpiece. The thermal flow sensor can monitor the air velocity and flow rate in real time, providing more comprehensive environmental parameters for the intelligent temperature control algorithm. When an increase in air flow is detected, the system will automatically increase the heating power or give priority to using waste heat to maintain the stability of the cigarette temperature.

[0052] A humidity sensor (not shown in the figure) can be a polymer capacitive humidity sensor installed on the side wall of the cigarette insertion channel. The humidity measurement range of the sensor is 10% - 90% RH. After the cigarette is inserted or when the user starts to smoke, if the humidity value is higher than 50% RH (which can be adjusted in the configuration parameters of the main control chip according to actual needs), and the cigarette temperature is in the heating stage, the algorithm will automatically reduce the heating rate of the heating element, for example, reduce the original heating power by 20%, and at the same time start the preheating program of the waste heat recovery system in advance to use a small amount of waste heat to moderately dry the environment around the cigarette, reducing the impact of water vapor on the heating effect of the cigarette.

[0053] When the cigarette is heated to 80% of the target temperature, if the humidity is still high, the algorithm will prioritize using the residual heat to maintain the current temperature and temporarily delay the heating element from heating up further, so as to avoid uneven heating of the cigarette or condensation due to excessive moisture.

[0054] The analysis module is used to analyze the suction characteristic parameters and compare them with preset thresholds to determine the temperature state of the aerosol formation matrix and the user's suction state.

[0055] The adjustment module is used to adjust the heating system 5 to heat the aerosol forming matrix according to the temperature conditions and suction requirements.

[0056] The heating system 5 includes a heating component and a waste heat recovery component 40. The waste heat recovery component 40 includes a heat exchanger 41 and an energy storage unit 42. The heat exchanger 41 is in thermal contact with the heating component and is used to transfer heat to the energy storage unit. The energy storage unit 42 is used to convert heat into thermal energy for storage.

[0057] At the computational level, the aerosol generation device of this application employs a combination of fuzzy logic algorithms and PID control algorithms. The fuzzy logic algorithm effectively processes fuzzy information collected by sensors, such as suction force and temperature change trends, converting it into clear control signals. The PID control algorithm, based on the deviation between the set target temperature value and the actual measured temperature value, precisely adjusts the power output of the heating element through proportional (P), integral (I), and derivative (D) operations. In the waste heat recovery and utilization stage, the law of conservation of energy and physical principles such as heat conduction and convection are used to accurately calculate the amount of waste heat recovered and the amount that can be utilized.

[0058] For example, when the cigarette temperature sensor detects that the cigarette temperature is close to the target temperature, the data acquisition module transmits the temperature data to the data analysis and decision-making module. This module uses a fuzzy logic algorithm to analyze the temperature data, determining that the heat generated by the heating element is close to the cigarette's required temperature, and then decides to activate the waste heat recovery system. Simultaneously, based on the law of conservation of energy, it calculates the recoverable waste heat energy value and sends relevant instructions to the execution control module to control the waste heat recovery system to recover excess heat.

[0059] When the user increases their suction strength, the suction strength sensor transmits a signal to the data analysis and decision-making module. This module uses a fuzzy logic algorithm to determine that the cigarette temperature will decrease. Based on the previously recovered residual heat storage and energy calculation results, it first determines whether the residual heat can be used for supplementary heating.

[0060] If there is sufficient waste heat, it will be used first for heating. Any shortfall will be supplemented by the heating element adjusting its power according to a PID control algorithm, thus achieving on-demand energy supply and effectively reducing thermal hysteresis. Throughout the process, the data analysis and decision-making module continuously monitors various sensor data in real time and dynamically adjusts the control strategy to ensure the cigarette remains at a suitable temperature while maximizing the utilization of waste heat resources and improving energy efficiency.

[0061] The heating component can be an internal heating component, an external heating component, or a combination of internal and external heating components; this application is not limited to this.

[0062] Internal heating refers to a heating element in a heating assembly being at least partially located inside the aerosol-forming matrix (ACM), directly heating the ACM. Internal heating is achieved through the design of specific heating tubes or heating elements. For example, a heating tube may have a heating cavity inside to accommodate the ACM, and a heating layer may be provided on the outside or inside of the heating tube. Heat is generated by passing electricity to heat the matrix. Additionally, auxiliary structures such as a heat spreader layer or a dielectric layer can be added as needed to improve heating uniformity and efficiency. Because the heating element is in closer contact with the matrix, the required heating temperature can be reached more quickly. Internal heating allows for more direct heating of the ACM, improving heating efficiency.

[0063] External heating refers to the placement of heating elements outside the aerosol-forming matrix, heating the matrix through heat conduction or radiation. External heating typically involves designing a specific heating cavity or tubular structure to contain the aerosol-generating product. The heating element (such as a heating element or a planar helical coil) is positioned outside the heating cavity or tubular structure. External heating methods also incorporate structures such as heat insulation pipes and support frames to improve heating uniformity and stability. External heating avoids direct contact between the heating element and the aerosol-forming matrix, reducing contamination and damage from the matrix. Through proper design of the heating cavity and insulation structure, uniform heating of the matrix can be achieved, improving the quality of aerosol generation.

[0064] This application provides a computer-readable storage medium that can be combined with a control component 2. The computer-readable storage medium stores computer-readable instructions, which, when executed by a processor, implement the steps in the heating control method.

[0065] Exemplary examples show that the memory in this application embodiment can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which serves as an external cache.

[0066] By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0067] The control component 2 may include a computer-readable storage medium, and the control component 2 may execute the steps of the following heating control method through a program stored in the computer-readable storage medium itself.

[0068] Please refer to Figure 3 This application provides a heating control method, which can be applied to the above-mentioned aerosol generating device. The heating control method specifically includes the following steps: Step S1: Control component 2 acquires suction characteristic parameters.

[0069] Control component 2 acquires the suction characteristic parameters collected by sensor component 3.

[0070] Step S2: Control component 2 analyzes the suction characteristic parameters and compares them with preset thresholds to determine the temperature state of the aerosol formation matrix and the user's suction state.

[0071] Among them, the suction characteristic parameters include matrix temperature, suction pressure and ambient humidity.

[0072] Step S2 includes: Step S21: Control component 2 detects whether the substrate temperature exceeds the first preset value: if so, it is determined that the aerosol forming substrate has reached the target heating temperature.

[0073] Step S22: Control component 2 detects whether the change in suction pressure exceeds the second preset value: if so, it is determined that the user's suction force has increased.

[0074] Step S23: Control component 2 detects whether the change in matrix temperature exceeds the third preset value: if so, it is determined that the aerosol has been drawn in.

[0075] Step S24: Control component 2 detects whether the ambient humidity exceeds the fourth preset value: if so, it is determined that there is a risk of condensation in the aerosol forming matrix.

[0076] It is understandable that when the humidity around the cigarette is high, even if the cigarette temperature has not reached the target temperature, the algorithm will appropriately reduce the initial heating power of the heating element and start the waste heat recovery system in advance to preheat, so as to avoid condensation during the heating process of the cigarette due to humidity.

[0077] Specifically, when the humidity sensor detects a humidity value exceeding 60% and the cigarette temperature is 80% of the target temperature, the heating element power is reduced by 20%, and the waste heat recovery system starts to operate at a lower power, using some of the waste heat to raise the ambient temperature around the cigarette and reduce the risk of condensation. When the cigarette temperature approaches the target temperature, the heating and waste heat utilization strategies are adjusted according to conventional logic.

[0078] As shown in Table 1, in this embodiment, the following logical relationships and threshold settings exist between the parameters: 1. Triggering conditions A humidity threshold is set. When the humidity sensor detects a humidity value H > 60% and the current temperature T of the cigarette reaches 80% of the target temperature T_target (i.e., T = 0.8 × T_target), the power adjustment mechanism is triggered.

[0079] 2. Power Adjustment

[0080] Once the triggering condition is met, the heating element power P decreases by 20%, i.e., P_new = 0.8 × P_original.

[0081] 3. Waste heat recovery system starts up

[0082] The waste heat recovery system operates at low power, using some of the waste heat to raise the ambient temperature T_env around the cigarette. By increasing the ambient temperature, the temperature difference between the cigarette surface and the environment is reduced, thereby lowering the risk of condensation. The condensation risk R is positively correlated with the temperature difference ΔT = |T_surface - T_env| between the cigarette surface temperature T_surface and the ambient temperature T_env; the larger the temperature difference, the higher the risk of condensation.

[0083] 4. Strategy Adjustment

[0084] When the cigarette temperature T approaches the target temperature T_target (which can be set to T ≥ 0.95 × T_target, and the specific threshold can be adjusted according to actual needs), the system switches back to the conventional heating and waste heat utilization strategy.

[0085] Table 1: Triggering conditions and adjustment logic for each parameter

[0086] Step S3: Control component 2 adjusts the heating system 5 to heat the aerosol forming matrix according to the temperature status and suction requirements.

[0087] Specifically, step S3 includes: Step S31: Control component 2 starts the waste heat recovery component 40 of the aerosol generation device according to the temperature status and suction requirements.

[0088] Step S32: Control component 2 controls waste heat recovery component 40 and / or heating component to heat the aerosol forming matrix.

[0089] Step S32 includes: Step S321: Control component 2 controls waste heat recovery component 40 to recover excess heat generated by heating component and use it to heat aerosol to form matrix.

[0090] The waste heat recovery assembly 40 includes a heat exchanger 41 and an energy storage unit 42. The energy storage unit 42 uses a phase change material, which undergoes a phase change when absorbing heat, stores a large amount of thermal energy, and can stably output heat when releasing it.

[0091] Specifically, if the phase change material has released 50% of its stored heat and the cigarette temperature drops at a rate of 3°C per second, the heat exchanger 41 controls the heating element to start at 15% higher power than usual to quickly replenish heat and ensure stable cigarette temperature.

[0092] Step S322: Control component 2 determines whether waste heat recovery component 40 heats the aerosol forming matrix: if not, control the heating component to heat the aerosol forming matrix.

[0093] Specifically, when the cigarette temperature reaches the first preset value of the target temperature, such as 90%, the algorithm controls the heating element power to be reduced by 30%, and at the same time starts the waste heat recovery system to transfer the excess heat of the heating element to the energy storage unit 42 through the heat exchanger 41.

[0094] When the user's suction pressure suddenly increases beyond the second preset value of 0.5N and the cigarette temperature drops beyond the third preset value of 5℃ within 1 second, the algorithm prioritizes using the residual heat from the energy storage unit 42 to heat the cigarette. If the remaining energy in the energy storage unit 42 is insufficient to meet the heating requirements, the heating system 5 is activated to supplement the remaining required heat.

[0095] Throughout the entire process, the sensor continuously collects data, and the control component 2 continuously adjusts the heating element power and waste heat utilization strategy based on the new data to ensure that the cigarette temperature remains stable within the target temperature range of ±2℃.

[0096] The control module records data such as the time, frequency, and duration of each use of the heated non-combustible smoke device, and performs deep learning analysis through an intelligent temperature control algorithm.

[0097] Specifically, if the algorithm analysis detects that a user typically has a higher smoking frequency and intensity during a certain period, then as that period approaches, even if the cigarette temperature is within the normal range, the algorithm will activate the waste heat recovery system in advance, appropriately increasing the energy storage level of the energy storage unit 42. When the user starts using the device, the waste heat can be utilized more quickly to meet the heating needs, further reducing the thermal lag effect and providing the user with a more personalized heating experience tailored to their habits.

[0098] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatus and methods can be implemented in other ways.

[0099] For example, the device embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0100] 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 interface, device or unit, and can be electrical, mechanical or other forms.

[0101] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0102] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0103] In this specification, references to "an embodiment" or "a specific implementation" mean that a particular feature, structure, or characteristic described in connection with that embodiment / specific implementation is included in at least one embodiment / specific implementation of the invention. Therefore, the phrase "in one embodiment / specific implementation" appearing in various places in this specification does not necessarily refer to the same embodiment / setting, but rather to potentially different embodiments. Furthermore, specific features, structures, or characteristics may be combined in one or more embodiments / settings in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0104] Similarly, it should be understood that in the above description of exemplary embodiments / specific implementations of the invention, various features of the invention are sometimes combined in a single embodiment / specific implementation or its figures and description, with the aim of simplifying the disclosure and aiding in the understanding of one or more of the various aspects of the invention. However, except for expressly stated instructions to the contrary or obvious technical contradictions or exclusions, the method of description in this patent should not be construed as reflecting an intention that the claimed features of the invention are more than those expressly stated in each claim.

[0105] Conversely, the inventive aspect reflected in the claims lies in not all the features of a single foregoing disclosed embodiment / specification. Therefore, the claims following the detailed description are expressly incorporated herein, each claim existing independently as a separate embodiment / specification of the invention.

[0106] Furthermore, while some embodiments / specific implementations described herein include, but do not include, other features included in other embodiments / specific implementations, combinations of features from different embodiments / specific implementations are intended to be within the scope of the invention and form different embodiments / specific implementations, as will be understood by those skilled in the art.

[0107] The terms and expressions used in this specification are for illustrative purposes and not for limitation. In using these terms and expressions, it is not intended to exclude any equivalents of the features or portions thereof shown and described, but rather to recognize that various modifications may be possible within the scope of the invention.

[0108] Therefore, it should be understood that although the invention has been specifically disclosed through preferred embodiments, exemplary embodiments and optional features, those skilled in the art may take variations or modifications of the concepts disclosed herein, and such variations and modifications are therefore considered to be within the scope of the invention as defined by the appended claims.

[0109] The specific embodiments given in this specification are examples of useful implementations of the present invention. It will be apparent to those skilled in the art that the present invention can be implemented using many variations of the devices, device components, and method steps disclosed in this specification.

[0110] The foregoing description of specific embodiments fully discloses the general features of the present invention, enabling others to easily modify and / or adapt such specific embodiments for various applications by applying knowledge within the scope of the art, without conducting excessive experimentation and without departing from the general concept of the present invention.

[0111] Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and is not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0112] Furthermore, the scope of the invention should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A heating control method for an aerosol generating device, the aerosol generating device comprising: A heating chamber, a heating system, and a control component, wherein the heating system is used to heat an aerosol-forming matrix contained within the heating chamber during operation to generate an aerosol, and the control component is used to generate a control signal, characterized in that the heating control method includes: Step S1: The control component acquires suction characteristic parameters; Step S2: The control component analyzes the suction characteristic parameters and compares them with a preset threshold to determine the temperature state of the aerosol forming matrix and the user's suction state. Step S3: The control component adjusts the heating system to heat the aerosol forming matrix according to the temperature state and the suction state; The heating system includes a waste heat recovery component and a heating component. Step S3 includes: Step S31: The control component starts the waste heat recovery component of the aerosol generating device according to the temperature state and the suction state; Step S32: The control component controls the waste heat recovery component and / or the heating component to heat the aerosol forming matrix.

2. The heating control method according to claim 1, characterized in that, The aspiration characteristic parameters include matrix temperature, and step S2 includes: Step S21: The control component detects whether the substrate temperature exceeds a first preset value: if so, it determines that the aerosol forming substrate has reached the target heating temperature.

3. The heating control method according to claim 1, characterized in that, The suction characteristic parameters include suction pressure, and step S2 includes: Step S22: The control component detects whether the change in suction pressure exceeds a second preset value; if so, it determines that the user's suction force has increased.

4. The heating control method according to claim 3, characterized in that, The aspiration characteristic parameters also include matrix temperature, and step S2 includes: Step S23: The control component detects whether the change in the matrix temperature exceeds a third preset value; if so, it determines that the aerosol has been drawn in.

5. The heating control method according to claim 1, characterized in that, The suction characteristic parameter also includes ambient humidity, and step S2 includes: Step S24: The control component detects whether the ambient humidity exceeds a fourth preset value: if so, it is determined that the aerosol forming matrix has a risk of condensation.

6. The heating control method according to claim 1, characterized in that, Step S32 includes: Step S321: The control component controls the waste heat recovery component to recover the excess heat generated by the heating component and use it to heat the aerosol to form a matrix; Step S322: The control component determines whether the waste heat recovery component heats the aerosol forming matrix; if not, it controls the heating component to heat the aerosol forming matrix.

7. An aerosol generating apparatus, the aerosol generating apparatus comprising: The system comprises a heating chamber, a heating system, and a control component. The heating system heats an aerosol-forming matrix contained within the heating chamber during operation to generate an aerosol. The control component generates control signals. The control component includes an acquisition module, an analysis module, and an adjustment module. The acquisition module includes a temperature sensor module, a pressure sensor module, a flow sensor module, and a humidity sensor module. The temperature sensor is attached to the bottom of the heating chamber near the heating system. The pressure sensor module is located in the airflow channel inside the aerosol generating device. The flow sensor module and the humidity sensor module are located at the near end of the aerosol generating device and are used together to acquire suction characteristic parameters. The analysis module is used to analyze the suction characteristic parameters and compare the suction characteristic parameters with a preset threshold to determine the temperature state of the aerosol forming matrix and the user's suction state. The adjustment module is used to adjust the heating system's heating of the aerosol forming matrix according to the temperature state and the suction state; The heating system includes a heating component and a waste heat recovery component. The waste heat recovery component includes a heat exchanger and an energy storage unit. The heat exchanger is in thermal contact with the heating component and is used to transfer heat to the energy storage unit. The energy storage unit is used to convert the heat into thermal energy for storage. The control component controls the waste heat recovery component and / or the heating component to heat the aerosol forming matrix.

8. A computer-readable storage medium having a computer program / instructions stored thereon, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the heating control method according to any one of claims 1-6.

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