Aerosol-generating device

Abstract

The invention discloses an aerosol generating device. An aerosol generating device according to an embodiment of the present application includes a laser heater and a controller. The controller is configured to control the laser heater to radiate and heat the aerosol-generating substrate with a first energy during a suction period, and to control the laser heater to radiate and heat the aerosol-generating substrate with a second energy during a non-suction period, the second energy being less than the first energy. According to the aerosol generating device provided by the embodiment of the invention, the aerosol generating substrate is radiated and heated by the laser heater. The laser heating technology has the characteristics of high energy density and high power response speed, and energy can be quickly radiated to the aerosol generation matrix without firstly heating the heating body, so that the aerosol is quickly generated, a user does not need to wait for a long time, and the user experience is relatively good.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to an aerosol generation device. Background Technology

[0002] Currently, the heating methods for aerosol generation devices are mainly resistance heating and electromagnetic heating. The heating principle involves first providing energy to the heating element, causing it to heat up to a certain high temperature. Then, the heat is transferred to the aerosol generation matrix through heat conduction to produce aerosols. However, this heating method requires users to wait a long time, resulting in a poor user experience. Summary of the Invention

[0003] This application provides an aerosol generating apparatus to solve at least one of the aforementioned technical problems.

[0004] The aerosol generating apparatus of this application includes:

[0005] Laser heaters; and

[0006] A controller configured to control the laser heater to radiate heat the aerosol-generating matrix with a first energy during a suction period, and to control the laser heater to radiate heat the aerosol-generating matrix with a second energy during a non-suction period, the second energy being less than the first energy.

[0007] In some embodiments, when the laser heater radiates heat the aerosol-generating matrix, the laser heater radiates heat a portion of the aerosol-generating matrix.

[0008] In some embodiments, the aerosol generating apparatus further includes a accommodating cavity for accommodating the aerosol generating matrix, the accommodating cavity having a transparent area for laser penetration.

[0009] In some embodiments, there are multiple laser heaters, and the multiple laser heaters are fixed in position relative to the aerosol generating matrix, and the radiation of the multiple laser heaters is directed to different positions of the aerosol generating matrix.

[0010] In some embodiments, the aerosol generating apparatus further includes a motor for driving the laser heater or the aerosol generating matrix to move, so that there is relative motion between the laser heater and the aerosol generating matrix.

[0011] In some embodiments, the aerosol generating apparatus further includes an airflow sensor, and the controller is configured to, after the airflow sensor detects a suction action, control the laser heater to radiate heat to the aerosol generating matrix with the first energy; and / or

[0012] The aerosol generating device further includes an interactive component, and the controller is configured to control the laser heater to radiate the aerosol generating matrix with the first energy after the interactive component receives an activation signal.

[0013] In some implementations, the second energy is equal to zero;

[0014] The controller is configured to control the laser heater to stop radiating heat to the aerosol-generating matrix after the airflow sensor detects the end of the suction action; and / or

[0015] The controller is configured to, upon receiving an end signal from the interactive component, control the laser heater to stop radiating heat to the aerosol-generating matrix; and / or

[0016] The controller is configured to control the laser heater to stop radiating heat to the aerosol generation matrix after the laser heater has radiated heat the aerosol generation matrix for a predetermined time.

[0017] In some embodiments, the output power mode of the laser heater during the suction time period is a pulsed output mode or a continuous output mode.

[0018] In some implementations, the second energy is greater than zero.

[0019] In some embodiments, the output power mode of the laser heater during the non-suction period includes any one of the following: multiple low-power pulse heating mode, multiple equal-power short pulse heating mode, multiple low-power short pulse heating mode, and low-power continuous heating mode.

[0020] The aerosol generation device of this application uses a laser heater to radiate heat to the aerosol generation matrix. Laser heating technology features high energy density and fast power response, allowing for rapid energy radiation to the aerosol generation matrix without the need for pre-heating a heating element, thus quickly generating aerosols without requiring long waiting times, resulting in a better user experience. Furthermore, during the suction period, the laser heater radiates heat to the aerosol generation matrix with a first energy level; during the non-suction period, the laser heater radiates heat to the aerosol generation matrix with a second energy level. The second energy level is lower than the first energy level, which reduces the energy consumption of the aerosol generation device and increases its operating time.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the control principle of an aerosol generating device according to certain embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0026] Figure 4 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0027] Figure 5 This is a schematic diagram showing the change of output power of a laser heater over time in some embodiments of this application;

[0028] Figure 6 This is a schematic diagram of a continuous power mode in which the power value changes over time in some embodiments of this application;

[0029] Figure 7 This is a schematic diagram of a constant pulse width periodic pulse power mode in some embodiments of this application, showing the power value changing over time.

[0030] Figure 8 This is a schematic diagram of a pulse width modulation type equal power value equal frequency pulse power mode according to certain embodiments of this application;

[0031] Figure 9 This is a schematic diagram of a frequency-adjusted, constant pulse width, constant power pulse mode according to certain embodiments of this application;

[0032] Figure 10 This is a schematic diagram of the three-variable modes of power value, pulse width, and frequency in certain embodiments of this application;

[0033] Figure 11 This is a schematic diagram of a multiple low-power pulse heating mode within each heating interval in certain embodiments of this application;

[0034] Figure 12 This is a schematic diagram of a mode of multiple short pulse heating of the same power within each heating interval in certain embodiments of this application;

[0035] Figure 13 This is a schematic diagram of a multiple low-power short-pulse heating mode within each heating interval of certain embodiments of this application;

[0036] Figure 14 This is a schematic diagram of a low-power continuous heating mode in certain embodiments of this application during every two heating intervals.

[0037] Explanation of reference numerals in the attached figures:

[0038] Aerosol generating device 100, laser heater 10, controller 20, aerosol generating matrix 30, accommodating cavity 40, transparent area 41, motor 50, airflow sensor 60, interactive component 70, battery 80. Detailed Implementation

[0039] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] Please see Figure 1 and Figure 2 The aerosol generating apparatus 100 of this application includes a laser heater 10 and a controller 20. The controller 20 is configured to control the laser heater 10 to radiate heat to the aerosol generating matrix 30 with a first energy during a suction period, and to control the laser heater 10 to radiate heat to the aerosol generating matrix 30 with a second energy during a non-suction period. The second energy is less than the first energy.

[0041] The aerosol generating apparatus 100 of this application uses a laser heater 10 to radiate heat to the aerosol generating matrix 30. Laser heating technology has the characteristics of high energy density and fast power response speed, allowing for rapid energy radiation to the aerosol generating matrix 30 without prior heating of the heating element, thereby quickly generating aerosols without requiring long waiting times for the user, resulting in a better user experience. Furthermore, during the suction period, the laser heater 10 radiates heat to the aerosol generating matrix 30 with a first energy level; during the non-suction period, the laser heater 10 radiates heat to the aerosol generating matrix 30 with a second energy level. The second energy level is lower than the first energy level, which can reduce the energy consumption of the aerosol generating apparatus 100 and increase its operating time.

[0042] Specifically, the aerosol generating device 100 can be a heated non-combustible appliance (HNB appliance). The laser heater 10 is used to radiate heat the aerosol generating matrix 30 within the aerosol generating device 100 to form an aerosol. The aerosol generated in the aerosol generating device 100 can be used for various purposes, including food, medicine, and industrial production.

[0043] In related technologies, the heating methods of HNB appliances are mainly resistance heating and electromagnetic heating. The heating principle is to first provide energy to the heating element so that the heating element with a certain mass is heated to a certain high temperature, and then transfer the heat of the heating element to the aerosol generation matrix through heat conduction.

[0044] The aerosol generating matrix is ​​heated as a whole by the heating element. If enough aerosol is to be generated in the first suction, sufficient time needs to be waited for the aerosol generating matrix to reach an appropriate high temperature through heat conduction and be maintained for a relatively long time. Therefore, most mainstream HNB devices require a preheating time, which is generally 20 seconds.

[0045] After preheating, the heating element needs to maintain a high temperature to keep the aerosol generation matrix at a high temperature and maintain sufficient aerosols within it to ensure that there are enough aerosols for the next suction. However, at this time, the HNB system continues to consume power and the temperature of the device casing continues to rise. Therefore, the current HNB device can only maintain the aerosol generation matrix for 3 to 6 minutes at a time.

[0046] Currently, there are two significant problems with the heating of HNB appliances:

[0047] (1) Long preheating waiting time: The 20-second waiting time causes users to have great anxiety while waiting, making it inconvenient to use; however, traditional cigarettes can be smoked immediately after being lit, without waiting, so users do not have anxiety while waiting, making them more convenient.

[0048] (2) Short heating time: The heating time is only 3 to 6 minutes. Users need to pay attention to the remaining heating time in real time. If they are not careful or are delayed, the heating time will end. This not only wastes the aerosol generation matrix, but also makes users feel more cramped and anxious. However, e-cigarettes that heat e-liquid have no heating time limit. There is no time limit between two puffs. Users can take a puff of e-cigarette, then go to do other things, and then come back to take another puff. Therefore, there is no time limit or anxiety of waste.

[0049] The reason why heated e-liquid e-cigarettes have no heating time limit is that the liquid e-liquid atomizes at a low temperature and at an extremely fast speed, requiring no preheating time. It only provides energy to the heating element during inhalation, which can instantly generate a sufficient amount of aerosol. This working mode can be defined as the "instant vaping mode." Heating can be stopped once inhalation is complete, and the energy supplied to the heating element can be completely shut off. This working mode can be defined as the "instant stop mode." Therefore, heated e-liquid e-cigarettes operate on an instant vaping and stop-only basis, making them the most convenient aerosol generating device on the market.

[0050] However, since e-liquid-based e-cigarettes do not have the same richness of aroma as HNB devices which generate solid aerosols, if HNB devices could stop vaping instantly, it would be a disruptive innovation in the industry and would greatly enhance the user experience.

[0051] For HNB devices to achieve instant pumping and stopping, the waiting time must be drastically reduced. This requires the aerosol generating matrix to reach a temperature of around 350°C in a very short time. However, current heating technologies on the market have heating elements with a certain mass, and the heating element itself takes a relatively long time (several seconds) to heat up before transferring heat to the aerosol generating matrix. This makes it impossible for the aerosol generating matrix to heat up so quickly.

[0052] In this embodiment, laser heating technology (such as semiconductor laser heating technology) has high energy density and fast laser power response speed, which can quickly radiate energy to the aerosol generating matrix 30 without first heating the heating element. Therefore, the laser-irradiated aerosol generating matrix 30 can be heated to a temperature sufficient to release a sufficient amount of aerosol in a very short time (<1 second). This allows the aerosol generating device 100 that heats the solid aerosol generating matrix 30 to achieve the effect of immediate extraction and immediate stop, which greatly accelerates the smoke output speed, reduces preheating time, and reduces energy consumption to extend the usage time of the device in one operation (total heating time). This improves the ease of use of the aerosol generating device 100 and solves the user's anxiety about long waiting time and short extraction time.

[0053] Please see Figure 1 In a specific example of this application, the aerosol generating apparatus 100 may include at least one laser heater 10. Each laser heater 10 may consist of a single laser emitting element or multiple laser emitting elements connected in series and parallel. The laser emitting element may be, for example, a vertical-cavity surface-emitting laser (VCSEL) chip. Multiple VCSEL chips may be packaged into a single laser heater 10 in series, parallel, or series-parallel configurations.

[0054] The wavelength range of VCSEL chips can be 400-1000 nm. For example, VCSEL chips have wavelengths of 400 nm, 500 nm, 600 nm, 700 nm, 800 nm, 900 nm, and 1000 nm. Within this wavelength range, the laser can interact well with matter, producing an effective heating effect. Preferably, the wavelength range of VCSEL chips is 750-950 nm. Within this wavelength range, the laser may exhibit better performance in terms of penetration and absorption efficiency.

[0055] The output power range of the laser heater 10 can be 3-30W. For example, the output power of the laser heater 10 can be 3W, 6W, 9W, 12W, 15W, 18W, 21W, 24W, 27W, 30W, etc. This output power range covers laser heaters 10 from low to medium power, meeting the needs of different application scenarios. Preferably, the start-up power range of the laser heater 10 is 10-20W. This start-up power range ensures that when the laser heater 10 starts up, it can rapidly heat the aerosol generation matrix 30 irradiated by the laser to a temperature sufficient to release a sufficient amount of aerosol, achieving rapid smoke emission, reducing preheating time, and avoiding excessive energy consumption of the aerosol generation device 100. The output power mode of the laser heater 10 during the suction period is either pulsed output mode or continuous output mode.

[0056] The aerosol generating matrix 30 refers to a raw material or carrier capable of generating aerosols upon heating. The aerosol generating matrix 30 can be a solid product, gel, or liquid product of heat-not-burn tobacco. The aerosol generating matrix 30 used in this embodiment is characterized by being composed of a material whose surface can receive laser radiation energy and having a suitable shape. Specifically, the surface of the aerosol generating matrix 30 is a material with a high absorption rate in the laser band. For example, the aerosol generating matrix 30 can be a dark-colored solid matrix, or an aluminum foil with a dark-colored light-absorbing material on its surface, one side of which is irradiated, and the other side in good contact with the aerosol generating matrix 30. The shape of the aerosol generating matrix 30 can be a cylinder with internal pores (such as...). Figure 3 As shown), large surface area shapes in the form of scrolls (such as...) Figure 4 (as shown), magnetic tape-like large surface area shapes or other shapes that can be unfolded into surfaces, etc.

[0057] The controller 20 is configured to control the laser heater 10 to radiate and heat the aerosol generation matrix 30. The laser heater 10's output power can be determined by testing in relation to input voltage, input current, input power, and / or laser temperature. Based on these relationships, the controller 20 collects, calculates, and controls these parameters to control the energy supply to the laser heater 10, thereby adjusting its output power. Furthermore, as... Figure 2As shown, the controller 20 can also control the opening and closing of the corresponding laser heater 10 through multiple switches (switch S1, switch S2, ..., switch Sn) connected to multiple laser heaters 10 (laser heater 1, laser heater 2 ... laser heater n).

[0058] In this regard, please combine Figure 5 The controller 20 is configured to control the laser heater 10 to radiate heat the aerosol generating matrix 30 with a first energy during the suction period to rapidly generate aerosols; and to control the laser heater 10 to radiate heat the aerosol generating matrix 30 with a second energy during the non-suction period, where the second energy is less than the first energy, to reduce the energy consumption of the aerosol generating device 100 and increase its operating time. It should be noted that the second energy can be zero or greater than zero, and this is not limited here. When the second energy is zero, the laser heater 10 stops radiating heat to the aerosol generating matrix 30 during the non-suction period to minimize energy consumption in an immediate-stop mode. When the second energy is greater than zero, the laser heater 10 continues to radiate heat to the aerosol generating matrix 30 with a lower energy during the non-suction period to pre-provide energy to the aerosol generating matrix 30 portion corresponding to the next suction, thereby accelerating the aerosol generation rate.

[0059] Please see Figure 1 The aerosol generating apparatus 100 may also include a battery 80 for powering the entire aerosol generating apparatus 100. For example, the battery 80 may be used to power the laser heater 10, the controller 20, and, as described later, the motor 50, the airflow sensor 60, the interactive component 70, etc.

[0060] Please see Figure 1 In some embodiments, when the laser heater 10 radiates heat the aerosol generation matrix 30, the laser heater 10 radiates heat a portion of the aerosol generation matrix 30.

[0061] In other words, when the aerosol generating device 100 is operating, at least one laser heater 10 radiates heat to a portion of the surface of the aerosol generating matrix 30. Because laser heating technology has good energy radiation directionality, it can heat only a localized area of ​​the aerosol generating matrix 30 rather than the entire matrix, thereby accelerating the heating of the laser-irradiated portion of the aerosol generating matrix 30 to a temperature sufficient to release a sufficient amount of aerosol, further facilitating the immediate stopping of aerosol generation.

[0062] Please see Figure 1 In some embodiments, the aerosol generating apparatus 100 further includes a receiving cavity 40. The receiving cavity 40 is used to receive the aerosol generating matrix 30, and the receiving cavity 40 is provided with a transparent region 41 for laser penetration.

[0063] Specifically, the accommodating cavity 40 can support and carry the aerosol generating matrix 30, ensuring that the aerosol generating matrix 30 can be stably and effectively heated by the laser heater 10 during the aerosol generation process. The accommodating cavity 40 is provided with a transparent region 41, which allows the laser to penetrate and act on the aerosol generating matrix 30. The material used for the transparent region 41 can be a solid material with a laser transmittance greater than 90%, such as glass or transparent plastic, to have good laser penetration performance, sufficient strength, and sealing performance, thereby ensuring that the laser energy can be efficiently transferred to the aerosol generating matrix 30.

[0064] Since the laser radiation direction needs to be avoided from the surface of the aerosol generating matrix 30 after heating during each suction period, so as to prevent the laser from continuously irradiating the same position and causing the material at that position to overheat or be damaged, or the position to be unable to generate enough aerosol for one suction, there needs to be relative movement between the radiation direction of the laser heater 10 and the aerosol generating matrix. The scheme for forming relative movement will be explained below.

[0065] Please see Figure 1 In some embodiments, there are multiple laser heaters 10. The multiple laser heaters 10 are fixed in position relative to the aerosol generating matrix 30, and the radiation of the multiple laser heaters 10 is directed to different positions of the aerosol generating matrix 30.

[0066] This embodiment of the application uses a sufficient number of laser heaters 10, such that the total area of ​​the radiation pointing positions of all laser heaters 10 can cover the area of ​​the heated aerosol generating matrix 30 required for a single use. Each time, only a suitable number of laser heaters 10 are turned on (e.g., one or two laser heaters 10), and the remaining laser heaters 10 are then turned on sequentially to heat the remaining surface of the aerosol generating matrix 30. In this way, relative movement can be achieved between the radiation pointing positions of the laser heaters 10 and the aerosol generating matrix 30, allowing multiple laser heaters 10 to sequentially radiate at different positions on the aerosol generating matrix 30.

[0067] Please see Figure 3 and Figure 4 In some embodiments, the aerosol generating apparatus 100 further includes a motor 50. The motor 50 is used to drive the laser heater 10 or the aerosol generating matrix 30 to move, so that there is relative motion between the laser heater 10 and the aerosol generating matrix 30.

[0068] The motor 50 in this embodiment can be a micro motor. The motor 50 can drive the laser heater 10 to move, so that relative movement is formed between the laser heater 10 and the aerosol generation matrix 30; or, the motor 50 can drive the aerosol generation matrix 30 to move (e.g., ...). Figure 3 andFigure 4 As shown, this allows relative motion between the laser heater 10 and the aerosol generating matrix 30. Similarly, relative motion between the radiation pointing position of the laser heater 10 and the aerosol generating matrix 30 can be achieved, allowing the laser heater 10 to radiate sequentially to different positions on the aerosol generating matrix 30.

[0069] like Figure 3 and Figure 4 As shown, when the motor 50 drives the aerosol generating matrix 30 to move, the motor 50 can be a rotary motor. The motor 50 is located at the bottom of the aerosol generating matrix 30 to drive the aerosol generating matrix 30 to rotate. As the aerosol generating matrix 30 rotates, the laser heater 10 can sequentially radiate to different positions of the aerosol generating matrix 30.

[0070] Please see Figure 1 , Figure 2 and Figure 5 In some embodiments, the aerosol generating apparatus 100 further includes an airflow sensor 60, and the controller 20 is configured to control the laser heater 10 to radiate heat to the aerosol generating matrix 30 with a first energy after the airflow sensor 60 detects a suction action; and / or the aerosol generating apparatus 100 further includes an interaction component 70, and the controller 20 is configured to control the laser heater 10 to radiate heat to the aerosol generating matrix 30 with a first energy after the interaction component 70 receives an activation signal.

[0071] Specifically, the airflow sensor 60 can be a pressure microphone, a pressure micro-electro-mechanical system (MEMS) component, an airflow sensor, or an airflow vibration sensor, etc. The airflow sensor 60 can detect the user's suction action by detecting changes in airflow pressure difference. When the airflow sensor 60 detects a suction action, it indicates that the aerosol generating device 100 is in the suction period, and the controller 20 controls the laser heater 10 to radiate heat to the aerosol generating matrix 30 with first energy.

[0072] The interactive component 70 can be a button (e.g., an electronic push-button switch, touch sensor, proximity sensor, pressure sensor, etc.) or a touch screen, etc. When the user wishes to generate aerosol for aspiration, they can input an activation signal through the interactive component 70. When the interactive component 70 receives the activation signal, it indicates that the aerosol generating device 100 has entered the aspiration period, and the controller 20 controls the laser heater 10 to radiate heat to the aerosol generating matrix 30 with first energy.

[0073] It should be noted that the controller 20 can determine that the aerosol generating device 100 is in the suction time period by any one or more of the above methods, and accordingly control the laser heater 10 to heat the aerosol generating matrix 30 with the first energy radiation, without any limitation.

[0074] Please see Figure 1 , Figure 2 and Figure 5 In some embodiments, the second energy is equal to zero. Controller 20 is configured to control laser heater 10 to stop radiating heating of aerosol generating matrix 30 after airflow sensor 60 detects the end of the suction action; and / or controller 20 is configured to control laser heater 10 to stop radiating heating of aerosol generating matrix 30 after interaction component 70 receives an end signal; and / or controller 20 is configured to control laser heater 10 to stop radiating heating of aerosol generating matrix 30 after laser heater 10 has radiated heating of aerosol generating matrix 30 for a predetermined time.

[0075] Specifically, when the airflow sensor 60 detects the end of the suction action, indicating that the aerosol generating device 100 is in a non-suction period, the controller 20 controls the laser heater 10 to stop radiating heat to the aerosol generating matrix 30. When the user inputs an end signal through the interactive component 70, indicating that the aerosol generating device 100 has entered a non-suction period, the controller 20 controls the laser heater 10 to stop radiating heat to the aerosol generating matrix 30. After the laser heater 10 has radiated heat to the aerosol generating matrix 30 for a predetermined time, indicating that the aerosol generating device 100 has entered a non-suction period, the controller 20 controls the laser heater 10 to stop radiating heat to the aerosol generating matrix 30. It can be understood that the predetermined time can cover one suction action. The predetermined time can be, for example, 0.5 seconds to 5 seconds, starting from when the laser heater 10 begins radiating heat to the aerosol generating matrix 30, and ending 0.5 seconds to 5 seconds later when the laser heater 10 stops radiating heat to the aerosol generating matrix 30.

[0076] It should be noted that the controller 20 can determine that the aerosol generating device 100 is in a non-suction period by any one or more of the above methods, and accordingly control the laser heater 10 to stop radiating and heating the aerosol generating matrix 30. No restrictions are imposed here.

[0077] Please see Figure 1 , Figure 2 and Figure 5 In the above embodiment, the controller 20 is configured to control the laser heater 10 to stop radiating heating of the aerosol generation matrix 30 during every two suction time intervals. That is, the controller 20 is configured to control the laser heater 10 to stop radiating heating of the aerosol generation matrix 30 during non-suction time periods.

[0078] Specifically, such as Figure 5 As shown, each suction time period corresponds to one suction cycle, with a total of n suction time periods. After heating stops during each suction time period, that is, during the interval between every two suction time periods, when the airflow sensor 60 does not detect suction action or the interactive component 70 does not receive an activation signal, the laser heater 10 does not radiate heat the aerosol generating matrix 30. During each suction time period, the output power of the laser heater 10 is P, where P > 0 W. During the interval between every two suction time periods, the output power of the laser heater 10 is 0 to reduce energy consumption and extend the total heating time.

[0079] In summary, in the aerosol generating apparatus 100 of this application embodiment, the laser heater 10 uses high power to heat a suitable area of ​​the aerosol generating matrix 30 (e.g., matrix area 15 mm²). 2 Up to 50mm 2 With a matrix thickness of 0.15mm to 0.4mm, the aerosol generating device 100 allows for immediate aerosol extraction after placing an aerosol generating matrix 30 into the device. The device continues operating until the matrix 30 produces its final aerosol, at which point it stops. In a narrow sense, there is no extraction time limit. However, in a broader sense, the system naturally experiences energy loss during standby. Maintaining system operation while heating an aerosol generating matrix 30 could deplete the system's power supply over several days to months before ending the heating process. Alternatively, a heating time limit, such as 20 to 30 minutes, can be manually set to terminate the heating process. This prevents users from forgetting to use the aerosol generating device 100 and wasting energy.

[0080] The process of laser heater 10 radiating and heating aerosol to generate matrix 30 is described in detail below.

[0081] Example 1:

[0082] Please see Figure 3 The aerosol generating matrix 30 is a hollow cylinder with a wall thickness ranging from 0.15 mm to 0.4 mm. The outer surface of the aerosol generating matrix 30 is an aluminum foil coated with a light-absorbing material, with a thickness ranging from 10 micrometers to 20 micrometers. An airflow sensor 60 is located on the suction airflow channel, for example near the air inlet of the aerosol generating matrix 30, and can detect the air pressure difference generated by the user's suction action. If the airflow sensor 60 is not present, the interactive component 70 can be used as a switch to turn the laser heater 10 on and off. A motor 50 is located at the bottom of the aerosol generating matrix 30 and can drive the aerosol generating matrix 30 to rotate.

[0083] When the aerosol generating matrix 30 is placed in the aerosol generating device 100, during the user's first aspiration, one or two of the laser heaters 1 to n operate, radiating laser energy. The laser penetrates the transparent area 41 of the receiving cavity 40 and irradiates the surface of the aerosol generating matrix 30. A laser power range of 5W to 30W, preferably 10W to 20W, is sufficient to obtain enough aerosol during the aspiration process (measured results show over 3mg of aerosol). The heating duration for each aspiration period is set to the aspiration action duration, or the duration of the start signal, or a timing of 0.5 to 5 seconds after heating is started, preferably 2 to 3 seconds. During the user's second aspiration, the remaining unoperated laser heaters 10 continue to heat this side (…). Figure 3 The surface of the remaining unheated aerosol generation matrix 30 (in the vertical direction).

[0084] After all the laser heaters 10 have completed one cycle, the motor 50 drives the aerosol generating matrix 30 to rotate, turning the adjacent unheated matrix surfaces to the position radiated by the laser heaters 10, and continuing the above heating steps.

[0085] During the interval between every two suction time periods, the laser heater 10 does not output energy.

[0086] The heating of the aerosol generating matrix 30 is stopped once the aerosol generating matrix 30 has rotated nearly 360°, i.e., to the position where the laser heater 10 is pointing, and there is no longer enough unirradiated matrix surface to generate enough aerosol for one suction, thus completing one use of the aerosol generating matrix 30.

[0087] Example 2:

[0088] Please see Figure 4 In Example 2, compared to Example 1, the aerosol generating matrix 30 is changed to a roll shape to increase its surface area. Simultaneously, the unfolded surface of the aerosol generating matrix 30 has a sufficient area perpendicular to the laser emission direction of the laser heater 10. Each time this unfolded matrix surface is heated, after the laser heater 10 on the same side completes one cycle, the motor 50 rotates, causing the aerosol generating matrix 30 to move adjacent unirradiated matrix surfaces to the radiation pointing position of the laser heater 10.

[0089] Please see Figure 5 In some embodiments, the output power mode of the laser heater 10 during the suction time period is either pulsed output mode or continuous output mode.

[0090] It should be noted that, Figure 5 The medium power P is the average power over each suction time period. Further, as... Figures 6 to 10As shown, during each suction time period, the output power P of the laser heater 10 can be a continuous constant power or a periodic constant power pulse with equal power value during the heating time period, or it can be a variable power during the heating time period.

[0091] Variable power during heating time is, for example, continuous power whose power value changes with time (e.g., power value changes over time). Figure 6 As shown, the power P changes continuously with time, and the power value changes with time in the equal-width periodic pulse power (such as...). Figure 7 As shown, the power P varies with time in a pulse pattern, with a fixed pulse width and frequency; pulse width-adjustable constant power value and constant frequency pulse power (such as...). Figure 8 As shown, pulse width varies with time, power P is fixed, frequency is fixed), and frequency-adjustable pulses with equal pulse width and equal power (such as...). Figure 9 As shown, there are other pulse power modes, such as frequency changing with time, power P fixed, pulse width fixed, and frequency, where any two of the three parameters (power, pulse width, and frequency) are variable, or all three are variable. Figure 10 As shown, the power P, pulse width, and frequency all change with time. The selection of the power adjustment method can be based on the characteristics of the laser heater 10, the ease of implementation of the control circuit, and the characteristics of the aerosol generation matrix 30. Preferably, it is a continuous power with a power value that changes with time and a pulse power with a constant power value and frequency, which is easy to control; and the overall trend of the power change is preferably that the average power is high first and then low during the heating cycle, so as to achieve rapid preheating.

[0092] Please see Figures 11 to 14 In some implementations, the second energy is greater than zero.

[0093] Specifically, the aforementioned scheme in which the laser heater 10 stops radiating heat to the aerosol generation matrix 30 during every two suction time intervals is a method to minimize energy consumption in an immediate stop mode, with the aim of maximizing the usage time of the aerosol generation device 100.

[0094] As an alternative to the embodiments described in this application, the laser heater 10 can still heat during the interval between every two suction time periods, but the energy consumption during this time period needs to be reduced. Although this increases the total energy consumption for heating one aerosol generation matrix 30, it can provide energy in advance for the next area to be irradiated. In the case of rapid continuous suction, it can accelerate the aerosol generation rate during the next heating.

[0095] When using this mode, a time limit for maintaining heating can be set between every two suction periods. Preferably, this is 20 seconds to 1 minute. That is, after heating one sample, the laser heater 10 can continue heating the next substrate area to be heated using low energy consumption. If the next suction begins within the time limit period, the laser heater 10 switches to heating mode, outputting a larger, suitable power to ensure aerosol generation. If the next suction does not begin after the time limit expires, heating must be stopped, meaning the output power of the laser heater 10 becomes 0. Then, when the next suction begins, the laser heater 10 switches back to heating mode. This allows for maintaining a sufficient operating time for the aerosol generation device 100 while ensuring the total heating time (preferably 20-30 minutes) and the aerosol generation rate for the next suction during rapid, continuous suction, while minimizing the energy consumption for heating one aerosol generation substrate 30.

[0096] Specifically, during every two suction time intervals, in the absence of suction action or start signal from interactive component 70, laser heater 10 provides only a small amount of energy to aerosol generating matrix 30 and maintains this for 20 seconds to 1 minute.

[0097] Please see Figures 11 to 14 In some embodiments, the output power mode of the laser heater 10 during the non-suction period includes any one of the following: multiple low-power pulse heating mode, multiple equal-power short pulse heating mode, multiple low-power short pulse heating mode, and low-power continuous heating mode.

[0098] like Figure 11 As shown, the first method is a multiple low-power pulse heating mode. During each suction period, the power P = P1 > 0; during non-suction periods (i.e., between every two suction periods), the power P = P2 > 0, and pulse heating is used. Where P1 > P2.

[0099] like Figure 12 As shown, the second method is a multiple short-pulse heating mode with the same power. During each suction time period, the power P = P1 > 0, and the heating duration t = t1; during the non-suction time period (i.e., between every two suction time periods), the power P = P1 > 0, and it is pulse heating, with a heating duration t = t2. Wherein, t1 > t2.

[0100] like Figure 13 As shown, the third method is a multiple low-power short-pulse heating mode. During each suction period, the power P = P1 > 0, and the heating duration t = t1; during the non-suction periods (i.e., between every two suction periods), the power P = P2 > 0, and it is pulse heating, with a heating duration t = t2. Wherein, P1 > P2, and t1 > t2.

[0101] like Figure 14 As shown, the fourth method is a low-power continuous heating mode. During each suction period, the power P = P1 > 0; during non-suction periods (i.e., between every two suction periods), the power P = P2 > 0, and heating is continuous. Where P1 > P2.

[0102] All four heating modes mentioned above can ensure the speed of smoke output for the next puff while minimizing the energy consumption of the aerosol generator.

[0103] In summary, the aerosol generating device 100 of this application, based on the rapid energy output capability and energy concentration characteristics of laser heating technology, heats a local area of ​​the aerosol generating matrix 30 to achieve rapid smoke emission. By controlling the working mode of providing energy heating only during suction and not providing energy heating when not suctioning through the airflow sensor 60 or the interactive component 70, the aerosol generating device 100 that heats the solid aerosol generating matrix 30 can achieve the effect of immediate suction and immediate stop, which greatly accelerates the smoke emission speed, reduces preheating time, and reduces energy consumption to extend the usage time of the device in one operation (total heating time), thereby improving the ease of use of the aerosol generating device 100 and solving the user's anxiety about long waiting time and short suction time.

[0104] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0105] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0106] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0107] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0108] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0109] Although embodiments of this application have been shown and described above, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerosol-generating device, characterized by, The aerosol generating device comprises: a laser heater; and a controller configured to control the laser heater to heat the aerosol generating substrate with a first energy radiation during a puffing period, and to heat the aerosol generating substrate with a second energy radiation during a non-puffing period, the second energy being less than the first energy.

2. The aerosol-generating device of claim 1, wherein, When the laser heater radiates to heat the aerosol generating substrate, the laser heater radiates to heat a partial area of the aerosol generating substrate.

3. The aerosol-generating device of claim 1, wherein, The aerosol generating device further comprises a containing cavity for containing the aerosol generating substrate, the containing cavity being provided with a transparent area for the laser to penetrate.

4. The aerosol-generating device of claim 1, wherein, The number of the laser heaters is plural, the plural laser heaters being fixedly positioned opposite to the aerosol generating substrate, the plural laser heaters radiating to different positions of the aerosol generating substrate.

5. The aerosol-generating device of claim 1, wherein, The aerosol generating device further comprises a motor for driving the laser heater or the aerosol generating substrate to move, so that relative movement is formed between the laser heater and the aerosol generating substrate.

6. The aerosol-generating device of claim 1, wherein, The aerosol generating device further comprises an airflow sensor, the controller being configured to control the laser heater to radiate to heat the aerosol generating substrate with the first energy after the airflow sensor detects a puffing action; and / or The aerosol generating device further comprises an interaction component, the controller being configured to control the laser heater to radiate to heat the aerosol generating substrate with the first energy after the interaction component receives an opening signal.

7. The aerosol-generating device of claim 6, wherein, The second energy is equal to zero; The controller is configured to control the laser heater to stop radiating to heat the aerosol generating substrate after the airflow sensor detects that a puffing action ends; and / or The controller is configured to control the laser heater to stop radiating to heat the aerosol generating substrate after the interaction component receives an ending signal; and / or The controller is configured to control the laser heater to stop radiating to heat the aerosol generating substrate after the laser heater radiates to heat the aerosol generating substrate for a predetermined time. 8.The aerosol-generating device of claim 1, wherein, The output power mode of the laser heater during the puffing period is a pulse output mode or a continuous output mode.

9. The aerosol-generating device of claim 1, wherein, The second energy is greater than zero. 10.The aerosol-generating device of claim 9, wherein, The output power mode of the laser heater during the non-puffing period comprises any one of a plurality of low-power pulse heating mode, a plurality of same-power short pulse heating mode, a plurality of low-power short pulse heating mode, and a low-power continuous heating mode.

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