Aerosol generating device and aerosol generating system

Abstract

The utility model belongs to the technical field of heating cigarettes, and particularly relates to an aerosol generating device and an aerosol generating system. The aerosol generating device comprises a cigarette containing cylinder, a sealing piece, a temperature controller, a pressure difference sensor, a data collector, a data storage device, a data analyzer and a heating element. The temperature controller is configured to adjust the output power of the heating element according to the result of the data analyzer and transmit the output power to the data memory; the differential pressure sensor is configured to transmit data of differential pressure detected by the differential pressure sensor along with time to the data memory; the data memory automatically receives and stores power and differential pressure data from the data collector; the data storage is configured to provide data required for analysis to the data analyzer. According to the method, the smoking behavior data can be recorded and analyzed, and the method can be used for heating process control.

Description

Technical Field

[0001] This utility model belongs to the field of heated cigarette technology, specifically relating to an aerosol generating device and an aerosol generating system. Background Technology

[0002] Traditional cigarettes, e-cigarettes, heated cigarettes, oral cigarettes, nicotine pouches, and other tobacco products all primarily rely on nicotine delivery as their main consumption characteristic. However, newer tobacco products such as e-cigarettes, heated cigarettes, and nicotine pouches are less harmful to consumers while effectively delivering nicotine, thus gaining increasing popularity. New tobacco products have experienced rapid growth in the international tobacco market in recent years and are a key focus for major tobacco manufacturers. Heated cigarettes, due to their similarity to the smoke characteristics of traditional cigarettes, have seen rapid development in the international market and are expected to become a major tobacco consumer product. Innovations in heated cigarettes mainly focus on the cigarette's structure, heating methods, and the close integration with smoking devices to promote aerosol generation and efficient delivery to consumers.

[0003] Mature heated cigarettes are generally cylindrical, typically 42mm–60mm long and 20mm–24mm in circumference, and axially contain a smoke-generating section, a hollow section, a cooling section, and a filter section. Heating directions include circumferential heating, central heating, and heating via hot airflow or aerosols. Circumferential heating refers to placing heaters around the smoke-generating section. Central heating typically involves placing heaters inside the aerosol-generating matrix or inserting them during use to heat the matrix. The airflow channel design during inhalation can be either integrated into the smoking device or naturally formed by the gap between the cigarette and the device. Airflow is introduced into the channel and passes through the aerosol-generating matrix, carrying away the aerosols formed by heating the matrix. Because airflow is introduced into the heated matrix, the aerosols migrating downstream are at a higher temperature and require cooling sections and / or perforated ventilation in the filter section to lower their temperature before being released. For this type of product, due to the presence of airflow channels in the device, airflow sensors (e.g., microphones) can be installed in the airflow path to record consumer vaping behavior characteristics, such as the number of puffs. The signals fed back by the airflow sensors can also control the atomizer heater, for example, increasing the heater output power when a vaping airflow is sensed and decreasing the heater output power when no vaping airflow is sensed.

[0004] Another type of heated cigarette (Chinese patents previously filed by the applicant in this case, such as 202010241676.5, 201911021676.8, and 201911021823, etc.) generally consists of a smoke-generating section, a hollow structure smoke-gas mixing section, and a filter section. The upstream end face of the aerosol-generating matrix is ​​sealed. The sealing method can be achieved by sealing the upstream end face of the aerosol-generating matrix with a matching smoking device, or by attaching a sealing rod or gas barrier membrane to the upstream end face of the aerosol-generating matrix. At the same time, an airflow channel is provided in the smoke-gas mixing section (for example, a channel of controllable size is provided in the hollow structure sidewall of the smoke-gas mixing section). During inhalation, the airflow bypasses the aerosol-generating matrix. Air enters the hollow structure of the smoke-mixing section through sidewall pores. The fluid flow in the mixing section creates negative pressure, drawing out the heated aerosol due to the pressure difference. This aerosol mixes with air entering from the outside through the sidewall pores and is then expelled through the filter. For such end-closed heated cigarettes, recording the consumer's inhalation behavior within the device becomes extremely difficult because the airflow channel is downstream of the aerosol-generating matrix in the heated cigarette, rather than within the device itself. Therefore, those skilled in the art generally do not incorporate airflow sensors into the device. How to record and acquire the consumer's inhalation behavior in this situation becomes a problem.

[0005] To address the above problems, this utility model is proposed. Utility Model Content

[0006] The purpose of this application is to design a smoking device for sealed heated cigarettes that can automatically detect the consumer's smoking behavior, based on the aforementioned existing technology.

[0007] A first aspect of this application provides an aerosol generating apparatus, the aerosol generating apparatus comprising:

[0008] Cigarette holder, seal, temperature controller, differential pressure sensor, data acquisition unit, data storage unit, data analyzer, heating element;

[0009] The bottom of the cigarette holder is sealed, and it is used to hold cigarettes.

[0010] The seal is configured to seal the gap between the cigarette holder and the cigarette;

[0011] The heating element includes a temperature controller and a power acquisition unit;

[0012] The data acquisition unit is configured to acquire data from the power acquisition unit and the differential pressure sensor.

[0013] One monitoring end of the differential pressure sensor is connected to the space between the seal, the cigarette and the cigarette holder, and the other monitoring end of the differential pressure sensor is connected to the atmosphere.

[0014] The differential pressure sensor is configured to detect the pressure difference between the space formed by the seal, the cigarette and the bottom wall of the cigarette holder and atmospheric pressure;

[0015] The heating element is communicatively connected to the data acquisition unit and the data storage unit. The temperature controller is configured to adjust the output power of the heating element according to the results of the data analyzer and transmit the data on the change of the output power of the heating element over time to the data storage unit.

[0016] The differential pressure sensor is communicatively connected to the data acquisition unit and the data storage unit, and the differential pressure sensor is configured to transmit the data of the differential pressure it detects changing over time to the data storage unit;

[0017] The data storage device automatically receives and stores power and differential pressure data from the data acquisition unit via a communication connection.

[0018] The data storage device is communicatively connected to the data analyzer and is configured to provide the data analyzer with the data required for analysis.

[0019] Preferably, the data analyzer is configured to convert between the user's flue gas demand and the differential pressure data during the suction phase.

[0020] Preferably, the data analyzer is configured to calculate the number of suction cycles based on the variation pattern of the differential pressure data.

[0021] Preferably, the sealing element is a central annular seal disposed between the bottom and top of the cigarette holder, and / or a bottom annular seal disposed at the bottom of the cigarette holder;

[0022] When the sealing element is a central annular sealing element, one monitoring end of the differential pressure sensor is located on the side wall of the cigarette holder downstream of the central annular sealing element or on the bottom wall of the cigarette holder.

[0023] When the sealing element includes a bottom annular seal, one monitoring end of the differential pressure sensor is located on the bottom wall of the cigarette holder and communicates with the hollow portion of the bottom annular seal.

[0024] Preferably, the sealing element is disposed in contact with the side wall or bottom wall of the cigarette holder.

[0025] Preferably, the aerosol generating device further includes a heating element disposed around, at the bottom or center of the cigarette holder.

[0026] Preferably, the data analyzer is communicatively connected to a controller, which is used to control the output power of the heating element.

[0027] A second aspect of this application provides an aerosol generation system, the aerosol generation system comprising: heated cigarette and the aerosol generation device as described in any one of the first aspects;

[0028] The heated cigarette includes a smoke-generating section, the upstream end of which is open, and the smoke-generating section is located in the cigarette holder.

[0029] Preferably, the heated cigarette further includes a smoke mixing section and a filter section located downstream of the smoke-generating section, wherein the smoke mixing section has a hollow structure and the sidewall of the smoke mixing section is provided with a sidewall through hole communicating with the hollow structure.

[0030] The cigarette holder is designed to be highly compatible with the cigarette structure. Preferably, the cigarette holder is cylindrical.

[0031] The heating element can be selected from resistance heating elements, infrared heating elements, electromagnetic heating elements, microwave heating elements, etc. Heating elements may also include other electrically driven heating elements.

[0032] When the heating element is located at the center of the cigarette holder, it has a rod-shaped or sheet-shaped structure.

[0033] Thanks to the addition of a differential pressure sensor, the aerosol generating device can now collect the following data: the output power of the heating element, and the pressure difference between the air pressure in the cigarette holder and the sealed space formed by the cigarette and atmospheric pressure. These two data points, varying with inhalation time, can be collected, stored, and analyzed to extract consumer inhalation behavior characteristics, which can then be used for subsequent heating element control.

[0034] A third aspect of this application provides a method for operating a first-aerosol generation system, the method comprising the following steps:

[0035] The differential pressure sensor monitors the pressure difference between the space formed by the seal, the cigarette, and the cigarette holder and atmospheric pressure in real time.

[0036] The temperature controller adjusts the output power of the heating element according to the results of the data analyzer and transmits the data of the change in the output power of the heating element over time to the data storage.

[0037] The differential pressure sensor transmits the data of the differential pressure change over time it detects to the data storage device;

[0038] The data storage device automatically receives and stores power and differential pressure data from the data acquisition unit;

[0039] The data storage device provides the data required for analysis to the data analyzer.

[0040] The data analyzer divides the data into preheating stage data, aspiration stage data, aspiration stage data, and aspiration end stage data based on the data characteristics within it.

[0041] The data analyzer converts the output power of the heating element to the output temperature of the heating element;

[0042] The data analyzer converts the user's smoke demand into pressure difference data in the suction phase data.

[0043] Specifically, the pressure difference change pattern and duration in the suction phase data can reflect the user's suction depth and suction time, and thus reflect the user's smoke demand.

[0044] The data analyzer calculates the number of suction cycles based on the changing patterns of the differential pressure data.

[0045] The principle of this application is as follows:

[0046] During operation, the cigarette is inserted into the cigarette holder, the heating element is activated, and after preheating, the cigarette is inhaled. At this time, the smoking section generates aerosol due to heating, creating positive pressure that moves downstream. After the inhalation action is initiated, because the cigarette holder and the cigarette are directly sealed by the sealing element, outside air can only enter the smoke mixing section through the side wall opening. Due to the high-speed fluid flow, a negative pressure is formed in the hollow structure of the smoke mixing section. The aerosol generated in the smoking section migrates to the smoke mixing section due to the pressure difference, mixes with the air entering here to form aerosol, and then migrates out of the smoke mixing section under the pressure difference of the user's inhalation, completing one inhalation. In a standard 55ml / 2s bell-shaped inhalation process, the negative pressure formed by the user's inhalation is typically in the range of 500-3000 Pa. This pressure value exceeds the positive pressure formed by the aerosol in the cigarette's smoking section, so the differential pressure sensor located upstream of the cigarette has a significant response. The response can be input, recorded, and output through the data storage device. After a consumer finishes smoking a cigarette, the smoking device also records the consumer's smoking behavior during the smoking process.

[0047] The data acquisition, storage, and analysis process for the heating fume device is as follows:

[0048] During operation, the entire process of smoking a cigarette is from inserting the cigarette into the cigarette tube, activating the heating element, to deactivating the heating element and removing the cigarette. Throughout this process, the temperature controller continuously monitors the output power of the heating element over time. A differential pressure sensor continuously monitors the pressure difference between the seal, the cigarette, and the cigarette housing cavity, and the atmosphere. The temperature controller and differential pressure sensor transmit the monitoring data to the data storage device in real time. The data storage device stores the monitoring data for each cigarette separately, allowing the user to export the monitoring data for each cigarette from the data storage device to an external location for analysis via a data cable.

[0049] Simultaneously, the data analyzer can also access the data storage to read data. The data analyzer first breaks down the overall process data for each cigarette into preheating stage data, ready-to-puff stage data, puffing stage data, and ending stage data. The preheating stage is identified as follows: the preheating stage begins when the power is turned on and ends when the preheating time reaches the preset preheating time. The puffing stage is identified as follows: a sudden increase in the rate of change of the differential pressure data monitored by the differential pressure sensor indicates the start of the puffing stage, while a gradual increase in the rate of change indicates the end of the puffing stage. The ready-to-puff stage is the period between the end of the preheating stage and the start of the next puffing stage, or vice versa. The ending stage is the period from the end of the last puffing stage to the power being turned off.

[0050] The data analyzer then analyzes the data from each stage separately. During the preheating stage, the output power of the heating source is continuously collected and monitored over time, and the data is analyzed to optimize the preheating time.

[0051] During the pre-suction phase, the required flue gas volume for the user is determined based on the user's suction depth and duration. Simultaneously, the input power of the temperature controller during this phase is determined based on the required flue gas volume. Furthermore, the output power of the temperature controller during the pre-suction phase is adaptively calculated based on historical data, ensuring that the required flue gas volume is rapidly generated in response to the user's suction actions. The purpose of these adjustments is to reduce the heating power during the pre-suction phase while maintaining the required flue gas volume.

[0052] During the suction phase, a conversion relationship is established between the change in differential pressure data and the user's smoke demand. The suction depth is determined based on the differential pressure data and its rate of change, and the suction duration is determined based on the duration of the suction phase, in order to predict the user's smoke demand. The relationship between suction depth, suction duration, and the user's smoke demand can be preset or obtained through historical data statistics. During the suction phase, the output power of the heating element is adjusted in real time to ensure that the real-time smoke volume during the suction phase is consistent with the user's smoke demand.

[0053] The suction phase ends, and the number of suction cycles is determined based on the number of suction cycles that occur throughout the entire process.

[0054] Compared with the prior art, this application has the following advantages:

[0055] 1. This application incorporates a pressure sensor within the cigarette holder of a closed aerosol generating device. Even in the absence of an airflow channel in the closed aerosol generating device, the pressure sensor records the inhalation behavior of a consumer consuming heated cigarettes by recording the negative pressure generated during inhalation.

[0056] 2. The data analyzer in this application can analyze the collected data and estimate the amount of smoke that the user is accustomed to based on the rate of change of pressure difference during suction.

[0057] 3. The data acquisition device, data storage device, and data analyzer of this application can record and analyze smoking behavior data, which can be used for heating process control. For example, the heating process of the cigarette can be stopped by monitoring the number of puffs; or the heating program can be adjusted in real time according to consumer behavior, etc.

[0058] 4. The smoking behavior data collected by the data acquisition device, data storage device, and data analyzer in this application can be input into an external data processor to analyze consumer behavior characteristics, so as to further optimize the design of smoking devices and better optimize the design according to the user's usage. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of the aerosol generation system of the first embodiment (ring seal + circumferential heating).

[0060] Figure 2 for Figure 1 Test data of pressure sensors for the aerosol generation system under 5 different suction capacities.

[0061] Figure 3 This is a schematic diagram of the aerosol generation system of the second embodiment (ring seal + bottom heating).

[0062] Figure 4 This is a schematic diagram of the aerosol generation system in the third embodiment (ring seal + central axial heating).

[0063] Figure 5 This is a schematic diagram of the aerosol generation system of the fourth embodiment (bottom sealing + circumferential heating).

[0064] Figure 6 This is a schematic diagram of the aerosol generation system of the fifth embodiment (bottom sealing + bottom heating).

[0065] Figure 7 This is a schematic diagram of the aerosol generation system of the sixth embodiment (bottom sealing + central axial heating).

[0066] List of reference numerals in the attached diagram:

[0067] 1. Aerosol generating device; 1-1. Cigarette holder; 1-2. Middle annular cigarette seal; 1-3. Bottom annular cigarette seal; 1-4. Heating element; 1-5. Differential pressure sensor; 1-6. Data acquisition unit; 1-7. Data storage unit; 1-8. Data analyzer; 1-9. Battery; 1-10. Power start / stop controller; 1-11. Connection channel between differential pressure sensor and cigarette holder; 1-12. Connection channel between differential pressure sensor and atmospheric pressure; 1-13. Spare part; 2. Cigarette; 2-1. Smoke-generating section; 2-2. Hollow structure; 2-3. Filter section; 2-4. Side wall through hole. Detailed Implementation

[0068] The present application will now be described in further detail with reference to the embodiments.

[0069] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of this application. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product manual. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0070] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this application's specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be intermediate elements. Furthermore, the term “connected” as used herein can include wireless connections.

[0071] In the description of this application, unless otherwise stated, "a plurality of" means two or more. The terms "inner," "upper," "lower," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and 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, and therefore should not be construed as a limitation of this application.

[0072] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this application according to the specific circumstances.

[0073] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0074] Figure 1 This is a schematic diagram of the aerosol generation system of the first embodiment (ring seal + circumferential heating).

[0075] The aerosol generation system includes: heated cigarette 2 and aerosol generation device 1.

[0076] The aerosol generating device 1 includes: a cigarette holder 1-1, a sealing element, a data acquisition unit 1-6, a data storage unit 1-7, a data analyzer 1-8, a battery 1-9, a power start / stop controller 1-10, and a heating element 1-4.

[0077] The heating elements 1-4 include a temperature controller and a power acquisition unit;

[0078] The data acquisition units 1-6 are configured to acquire data from the power acquisition unit and the differential pressure sensor 1-5.

[0079] The bottom of the cigarette holder 1-1 is sealed, and it is used to hold the cigarette 2.

[0080] The seal is configured to seal the gap between the cigarette holder 1-1 and the cigarette 2.

[0081] One monitoring end of the differential pressure sensor 1-5 is connected to the space between the seal and the bottom wall of the cigarette holder 1-1 via a differential pressure sensor-to-cigarette-receiving-cavity connection channel 1-11, and the other monitoring end is connected to the atmosphere via a differential pressure sensor-to-atmospheric-pressure connection channel 1-12. The differential pressure sensor 1-5 is configured to detect the pressure difference between the space between the seal and the bottom wall of the cigarette holder 1-1 and atmospheric pressure.

[0082] The sealing element is a central annular seal 1-2 located between the bottom and top of the cigarette holder 1-1, and one monitoring end of the differential pressure sensor 1-5 is located on the side wall of the cigarette holder 1-1 downstream of the central annular seal 1-2.

[0083] The heating element is communicatively connected to the data acquisition unit 1-6, the data storage unit 1-7, and the data analyzer 1-8. The temperature controller is configured to adjust the output power of the heating element 1-4 according to the results of the data analyzer 1-8 and transmit the data on the change of the output power of the heating element 1-4 over time to the data storage unit 1-7.

[0084] The differential pressure sensor 1-5 is communicatively connected to the data storage 1-7, and the differential pressure sensor 1-5 is configured to transmit the data of the differential pressure it detects changing over time to the data storage 1-7;

[0085] The data storage devices 1-7 automatically receive and store power and differential pressure data from the data acquisition devices 1-6 via a communication connection;

[0086] The data storage device 1-7 is communicatively connected to the data analyzer 1-8, and the data storage device 1-7 is configured to provide the data required for analysis to the data analyzer 1-8.

[0087] The data analyzers 1-8 are configured to divide data into a preheating stage, a suction stage, a suction stage, and a suction end stage based on the data characteristics therein.

[0088] The data analyzers 1-8 are configured to convert between the output power of the heating elements 1-4 and the output temperature of the heating elements 1-4.

[0089] The data analyzers 1-8 are configured to convert between the user's smoke demand and the pressure difference data during the suction phase.

[0090] The data analyzers 1-8 are configured to determine the amount of flue gas in the smoke generation section of the preheating stage and the suction stage based on the differential pressure data.

[0091] The data analyzers 1-8 are configured to calculate the number of suction cycles based on the variation pattern of the differential pressure data.

[0092] The heating elements 1-4 are arranged around the cigarette holder 1-1.

[0093] The heated cigarette 2 includes a smoke-generating section, the upstream end of which is open.

[0094] The heated cigarette also includes a smoke mixing section and a filter section 2-3 located downstream of the smoke-generating section. The smoke mixing section has a hollow structure 2-2, and the sidewall of the smoke mixing section is provided with a sidewall through hole 2-4 that communicates with the hollow structure 2-2.

[0095] Figure 2 for Figure 1 The heating system's pressure sensor test data were obtained under five different suction capacities. The experimental results were obtained by measuring the pressure drop at the bottom of the smoking device under different suction capacities using a micro differential pressure gauge, a smoking machine, and a suction resistance meter. The operating temperature of the smoking device was 260℃; the suction time was 2 seconds; and the suction capacities were 15mL, 25mL, 35mL, 45mL, and 55mL. It is evident that the differential pressure sensor can clearly detect the pressure drop at the bottom of the smoking device (compared to atmospheric pressure).

[0096] Figure 2 The data shows the pressure difference between the waiting-to-aspirate stage and the aspirate stage over time. The pressure difference during the waiting-to-aspirate stage remains at approximately 0 Pa, while the aspirate stage exhibits significant pressure difference changes. Therefore, the data analysis can distinguish between the waiting-to-aspirate stage and the aspirate stage, and the number of aspirations can be counted.

[0097] During the suction phase, as the suction volume increases, the pressure difference increases from 200Pa to 1200Pa. The suction volume and pressure difference show a positive correlation. Therefore, the user's suction volume, i.e. the user's smoke demand, can be calculated from the pressure difference variable.

[0098] Figure 3 This is a schematic diagram of the aerosol generation system of the second embodiment (ring seal + bottom heating). Figure 3 and Figure 1 The difference is that the heating element 1-4 is located at the bottom of the cigarette holder 1-1. There is a gap of -13 between the upstream end face of the smoke-generating section and the bottom of the cigarette holder 1-1.

[0099] Figure 4 This is a schematic diagram of the aerosol generation system in the third embodiment (ring seal + central axial heating). Figure 4 and Figure 1 The difference is that the heating element is located at the center of the cigarette holder.

[0100] Figure 5 This is a schematic diagram of the aerosol generation system of the fourth embodiment (bottom sealing + circumferential heating).

[0101] The sealing element is a bottom annular seal 1-3 located at the bottom of the cigarette holder 1-1. One monitoring end of the differential pressure sensor 1-5 is located on the bottom wall of the cigarette holder 1-1 and in the hollow portion of the bottom annular seal 1-3. The other monitoring end of the differential pressure sensor 1-5 is connected to the atmosphere.

[0102] The differential pressure sensor 1-5 is configured to detect the pressure difference between the space between the seal and the bottom wall of the cigarette holder 1-1 and atmospheric pressure.

[0103] Heating elements 1-4 are arranged around the cigarette holder 1-1.

[0104] Figure 6 This is a schematic diagram of the aerosol generation system of the fifth embodiment (bottom sealing + bottom heating). Figure 6 and Figure 5 The difference is that the heating element 1-4 is located at the bottom of the cigarette holder 1-1.

[0105] Figure 7 This is a schematic diagram of the aerosol generation system of the sixth embodiment (bottom sealing + central axial heating). Figure 6 and Figure 7 The difference is that the heating element 1-4 is located at the center of the cigarette holder 1-1.

Claims

1. An aerosol generating device, characterized in that, The aerosol generating device includes: Cigarette holder, sealing components, temperature controller, differential pressure sensor, data acquisition unit, data storage device, data analyzer, heating element; The bottom of the cigarette holder is sealed, and it is used to hold cigarettes. The heating element includes a temperature controller and a power acquisition unit; The seal is configured to seal the gap between the cigarette holder and the cigarette; The data acquisition unit is configured to acquire data from the power acquisition unit and the differential pressure sensor; One monitoring end of the differential pressure sensor is connected to the space formed by the seal, the cigarette, and the cigarette holder, while the other monitoring end of the differential pressure sensor is connected to the atmosphere. The differential pressure sensor is configured to detect the pressure difference between the space formed by the seal, the cigarette and the cigarette holder and atmospheric pressure; The heating element is communicatively connected to the data acquisition unit, the data storage unit, and the data analyzer. The temperature controller is configured to adjust the output power of the heating element according to the results of the data analyzer and transmit the data on the change of the output power of the heating element over time to the data storage unit. The differential pressure sensor is communicatively connected to the data acquisition unit and the data storage unit, and the differential pressure sensor is configured to transmit the data of the differential pressure it detects changing over time to the data storage unit; The data storage device automatically receives and stores power and differential pressure data from the data acquisition unit via a communication connection. The data storage device is communicatively connected to the data analyzer and is configured to provide the data analyzer with the data required for analysis.

2. The aerosol generating apparatus according to claim 1, characterized in that, The data analyzer is configured to divide data into preheating stage data, suction stage data, suction stage data, and suction end stage data based on the data characteristics therein. The data analyzer is configured to convert between the output power of the heating element and the output temperature of the heating element.

3. The aerosol generating apparatus according to claim 2, characterized in that, The data analyzer is configured to convert between the user's smoke demand and the differential pressure data in the suction phase data. The data analyzer is configured to calculate the number of suction cycles based on the variation pattern of the differential pressure data.

4. The aerosol generating apparatus according to claim 1, characterized in that, The sealing element is a central annular seal disposed between the bottom and top of the cigarette holder, and / or a bottom annular seal disposed at the bottom of the cigarette holder; When the sealing element is a central annular sealing element, one monitoring end of the differential pressure sensor is located on the side wall of the cigarette holder downstream of the central annular sealing element or on the bottom wall of the cigarette holder. When the sealing element includes a bottom annular seal, one monitoring end of the differential pressure sensor is located on the bottom wall of the cigarette holder and is connected to the hollow portion of the bottom annular seal.

5. The aerosol generating apparatus according to claim 1, characterized in that, The sealing element is fitted to the side wall or bottom wall of the cigarette holder.

6. The aerosol generating apparatus according to claim 1, characterized in that, The heating element is located around, at the bottom, or at the center of the cigarette holder.

7. An aerosol generation system, characterized in that, The aerosol generation system includes: heated cigarette and the aerosol generation device according to any one of claims 1 to 6; The heated cigarette includes a smoke-generating section, the upstream end of which is open, and the smoke-generating section is located in the cigarette holder.

8. The aerosol generation system according to claim 7, characterized in that, The heated cigarette further includes a smoke mixing section and a filter section located downstream of the smoke-generating section. The smoke mixing section has a hollow structure, and the sidewall of the smoke mixing section is provided with a sidewall through hole communicating with the hollow structure.

Images