Aerosol-generating device

Abstract

The application discloses an aerosol generating device. The aerosol generating device of the application includes a laser heater and a controller. The laser heater is configured to radiate and heat an aerosol generating substrate. The controller is configured to adjust the output energy of the laser heater according to the working condition of the laser heater within a puffing period. The aerosol generating device of the application radiates and heats the aerosol generating substrate by the laser heater. The laser heating technology has the characteristics of high energy density and fast power response speed, and can quickly radiate energy to the aerosol generating substrate without preheating the heating body, thereby quickly generating aerosol, without long waiting time for the user, and good user experience. Further, within the puffing period, the controller adjusts the output energy of the laser heater according to the working condition of the laser heater, so that the aerosol released by each puff has good consistency.

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 according to the embodiments of this application includes:

[0005] A laser heater, configured to radiate heat an aerosol-generating matrix; and

[0006] A controller configured to adjust the output energy of the laser heater according to the operating conditions of the laser heater during the suction period.

[0007] In some embodiments, the controller is configured to adjust the output energy of the laser heater according to the temperature of the laser heater during the suction period.

[0008] In some embodiments, the laser heater includes a laser heating element and a heat sink, wherein the laser heating element is disposed on the heat sink;

[0009] The temperature of the laser heater includes the temperature of the laser heating element and / or the temperature of the heat dissipation element.

[0010] In some embodiments, the controller is configured to, during the suction period, adjust the input power of the laser heater based on the temperature of the laser heater, according to the relationship between the energy output efficiency of the laser heater, the temperature of the laser heater, and the input power of the laser heater, in order to adjust the energy output efficiency of the laser heater.

[0011] In some embodiments, the controller is configured to adjust the output energy of the laser heater according to the temperature of the aerosol-generating matrix during the suction period.

[0012] In some embodiments, the controller is configured to, during the aspiration period, adjust the output energy of the laser heater based on the relationship between the output energy of the laser heater, the initial temperature of the aerosol generating matrix before heating, and the temperature rise of the aerosol generating matrix, thereby adjusting the temperature rise of the aerosol generating matrix.

[0013] In some embodiments, the controller is configured to adjust the output energy of the laser heater based on the real-time temperature during the heating process of the aerosol generation matrix during the aspiration period, so as to regulate the temperature rise of the aerosol generation matrix.

[0014] In some embodiments, the laser heater includes a laser heating element and a heat sink, wherein the laser heating element is disposed on the heat sink;

[0015] The controller is configured to determine the temperature of the aerosol generation matrix based on the temperature of the heat sink, the heating interval between two suction time periods, and / or the output energy of the laser heating element.

[0016] In some embodiments, the controller is configured to adjust the output energy of the laser heater according to the area of ​​the aerosol-generating matrix radiated by the laser heater during the suction period.

[0017] In some embodiments, the aerosol generating matrix includes multiple areas to be heated arranged along the airflow direction;

[0018] The controller is configured to adjust the output energy of the laser heater during the suction period based on the airflow path distance between the area where the laser heater radiates and heats the aerosol-generating matrix and the suction position.

[0019] 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 the heating element, thus quickly generating aerosols without requiring long waiting times, resulting in a better user experience. Furthermore, during the suction period, the controller adjusts the output energy of the laser heater according to its operating conditions, ensuring good consistency in the aerosols released through each suction pump.

[0020] 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

[0021] 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:

[0022] Figure 1 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of a laser heater according to certain embodiments of this application;

[0025] Figure 4 This is a schematic diagram of the structure of a temperature sensor disposed in a laser heater according to certain embodiments of this application;

[0026] Figure 5 This is a schematic diagram showing the relationship between the energy output efficiency, temperature, and input current of a laser heater in certain embodiments of this application.

[0027] Figure 6 This is a schematic diagram of the structure in which a temperature sensor is disposed in the aerosol generation matrix according to certain embodiments of this application;

[0028] Figure 7 This is a three-dimensional structural schematic diagram of the aerosol generation matrix according to certain embodiments of this application;

[0029] Figure 8 This is a schematic diagram of a laser heater radiating and heating aerosol to generate a matrix in some embodiments of this application;

[0030] Figure 9 This is a schematic diagram of the planar structure of the aerosol generation matrix according to certain embodiments of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] Aerosol generating device 100, laser heater 10, laser heater 10a, laser heater 10b, laser heating element 11, heat sink 12, controller 20, aerosol generating matrix 30, heating area 31, heating area 31a, heating area 31b, filter section 32, connecting section 33, matrix section 34, accommodating cavity 40, transparent area 41, motor 50, airflow sensor 60, interactive component 70, battery 80, temperature sensor 90. Detailed Implementation

[0033] 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.

[0034] Please see Figure 1 The aerosol generating apparatus 100 of this application includes a laser heater 10 and a controller 20. The laser heater 10 is configured to radiate heat the aerosol generating matrix 30. The controller 20 is configured to adjust the output energy of the laser heater 10 according to the operating conditions of the laser heater 10 during the suction period.

[0035] 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 features high energy density and fast power response, allowing for rapid energy radiation to the aerosol generating matrix 30 without prior heating of the heating element, thus quickly generating aerosols without requiring long waiting times for the user, resulting in a better user experience. Furthermore, during the suction period, the controller 20 adjusts the output energy of the laser heater 10 according to its operating conditions, ensuring good consistency in the aerosols released through each suction.

[0036] 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.

[0037] 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.

[0038] Currently, there are two significant problems with the heating of HNB appliances:

[0039] (1) Long warm-up waiting time: The 20-second waiting time causes users to have great anxiety while waiting and is not convenient to use;

[0040] (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 during use. If they are not careful, the heating time will end, which not only wastes the aerosol generation matrix, but also makes users feel more cramped and anxious.

[0041] To solve the above problems, HNB devices need to have the ability to operate with instant aspiration and immediate stop: no preheating time is required, and energy is only provided to the heating element during aspiration to instantly generate sufficient aerosol. This operating mode can be defined as the instant aspiration mode. Heating can be stopped completely after aspiration, and the energy provided to the heating element can be completely shut off. This operating mode can be defined as the instant stop mode, which can extend the usage time. Devices that have both of the above operating capabilities operate in the instant aspiration and immediate stop mode.

[0042] For HNB devices to achieve instant draw and stop, 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 to heat up (several seconds), making it impossible for the aerosol generating matrix to heat up so quickly.

[0043] In this embodiment, the aerosol generation matrix 30 is radiated and heated by a laser heater 10. Laser heating technology (e.g., semiconductor laser heating technology) has high energy density and fast laser power response speed, allowing for rapid energy radiation to the aerosol generation matrix 30 without prior heating of the heating element. Simultaneously, the energy radiation has good directionality, heating only a localized area of ​​the aerosol generation matrix 30 rather than the entire matrix. Therefore, the laser-irradiated portion of the aerosol generation matrix 30 can be heated to a temperature sufficient to release a sufficient amount of aerosol in a very short time (<1 second), providing a solution for achieving immediate pumping and stopping.

[0044] Research has shown that in applications requiring immediate extraction and shutdown, constant power heating is the most effective heating mode for each laser heating port. Constant power heating means that the heating energy for each port is set almost uniformly; the power supply can be continuous over time or pulsed. The total energy value will only deviate slightly due to variations in environmental factors such as temperature during use, which in turn causes changes in the characteristics of the laser integrated circuit (IC), resulting in slight deviations in output energy.

[0045] In this heating mode, if the temperature, moisture content, and area being heated remain constant before heating, each port receiving the same heating energy can achieve a good consistency in aerosol release. However, in practical applications, these conditions change with the heating process or the cumulative number of ports, ultimately leading to variations in heating energy and matrix temperature. This results in significant variations in the amount of aerosol obtained per port and the composition of the aerosol, meaning inconsistent aerosol characteristics.

[0046] In this embodiment, during the suction period, the controller 20 adjusts the output energy of the laser heater 10 according to the working conditions of the laser heater 10. The controller can use the characteristics of the laser heater 10, the characteristics of the aerosol generating matrix 30, and the changes in environmental characteristics during use as feedback basis to adjust the heating energy port by port to solve the problem of inconsistent aerosol release characteristics port by port.

[0047] Please see Figure 1 In the examples 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.

[0048] 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 the VCSEL chip is 750–950 nm. Within this wavelength range, the laser may exhibit better performance in terms of penetration and absorption efficiency.

[0049] 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 can be either pulsed output mode or continuous output mode.

[0050] The aerosol generating matrix 30 refers to the raw material or carrier that can generate aerosols upon heating. The aerosol generating matrix 30 can be a solid product, gel, or liquid product of heat-not-burn tobacco. The surface of the aerosol generating matrix 30 is a material with high absorption 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 2 (as shown), large surface area forms such as scroll-shaped forms, magnetic tape-shaped forms, or other forms that can be unfolded into surfaces, etc.

[0051] The laser heater 10 is configured to radiate heat the aerosol generating matrix 30. Specifically, when the laser heater 10 radiates heat the aerosol generating matrix 30, at least one laser heater 10 operates to radiate heat a portion of the aerosol generating matrix 30. It is understood that 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 achievement of immediate pumping and stopping.

[0052] The controller 20 is configured to adjust the output energy of the laser heater 10 according to its operating conditions during the suction period. The relationship between the output power of the laser heater 10 and its input voltage, input current, input power, and / or temperature can be obtained through testing. When adjusting the output energy of the laser heater 10 according to its operating conditions, the controller 20 can collect, calculate, and control these parameters based on the aforementioned relationships to control the output power of the laser heater 10, thereby regulating the output energy supply of the laser heater 10.

[0053] In some embodiments, the controller 20 may also be 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, the second energy being less than the first energy, to reduce the energy consumption of the aerosol generating device 100 and increase the usage time of the aerosol generating device 100. It should be noted that the second energy can be equal to zero or greater than zero, and this is not limited here. When the second energy is equal to zero, the laser heater 10 stops radiating heat to the aerosol generating matrix 30 during the non-suction period to achieve maximum energy reduction in the immediate-stop mode. When the second energy is greater than zero, the laser heater 10 still radiates 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.

[0054] Please see Figure 1 In some embodiments, the aerosol generating apparatus 100 also includes a battery 80 for powering the entire aerosol generating apparatus 100. For example, the battery 80 can be used to power the laser heater 10, the controller 20, and, as described below, the motor 50, the airflow sensor 60, the interaction component 70, the temperature sensor 90, etc.

[0055] 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.

[0056] 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.

[0057] Since the laser radiation direction needs to be avoided from the surface of the aerosol generating matrix 30 after each suction period of heating, 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 30. The scheme for forming relative movement will be explained below.

[0058] 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.

[0059] This embodiment of the application uses a sufficient number of laser heaters 10, and at a time, only a suitable number of laser heaters 10 are turned on (e.g., one or two laser heaters 10) to heat a portion of the surface of the aerosol generating matrix 30, while the remaining laser heaters 10 are turned on sequentially to heat the remaining surface of the aerosol generating matrix 30. In this way, a relative movement can be achieved between the radiation pointing position of the laser heaters 10 and the aerosol generating matrix 30, so that multiple laser heaters 10 radiate towards different positions of the aerosol generating matrix 30 in sequence.

[0060] Please see Figure 2 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.

[0061] 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 2 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.

[0062] 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.

[0063] Please see Figure 1In 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] Please see Figure 1 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.

[0068] 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.

[0069] 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.

[0070] 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 can immediately draw in aerosols after placing an aerosol generating matrix 30 in it; and then the aerosol generating device 100 is used up and stops operating after the aerosol generating matrix 30 generates the last breath of aerosol as set by the system.

[0071] The process of laser heater 10 radiating and heating aerosol to generate matrix 30 is described in detail below.

[0072] Please see Figure 2 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.

[0073] When the aerosol generating matrix 30 is placed in the aerosol generating device 100, the laser heater 10a operates and radiates laser energy when the user takes the first aspiration. The laser penetrates the transparent area 41 of the accommodating 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 countdown of 0.5 to 5 seconds after heating is started, preferably 2 to 3 seconds. When the user takes the second aspiration, the laser heater 10b operates to continue heating the lower side (…). Figure 2 The unheated matrix surface (in the vertical direction).

[0074] Then, the motor 50 drives the aerosol generating matrix 30 to rotate, turning the adjacent unheated matrix surface to the position radiated by the laser heater 10, and then starts working from the laser heater 10a to repeat the above heating steps.

[0075] During the interval between every two suction time periods, the laser heater 10 does not output energy.

[0076] 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.

[0077] The following analysis addresses the factors affecting the consistency of aerosol release and proposes a scheme for adjusting the heating energy at each outlet.

[0078] Please see Figure 1 In some embodiments, the controller 20 is configured to adjust the output energy of the laser heater 10 according to the temperature of the laser heater 10 during the suction period.

[0079] Specifically, research has found that the power conversion efficiency (PCE) of laser ICs is typically between 30% and 50%, and the PCE decreases as the temperature of the laser IC rises. Laser ICs need to be positioned and properly connected to a large heat sink to control the chip junction temperature within the operating range and maintain high efficiency during use.

[0080] Even so, as the heating time accumulates and the interval between heating points is not long enough to prevent the heat deposited on the heat sink from increasing, the heat sink temperature will continue to rise, and the same applies to the laser IC. At this point, the PCE of the laser IC decreases, and when the system inputs the same electrical energy to the laser IC, the energy output of the laser IC will decrease. Actual testing shows that the attenuation rate is between 2% and 10%, with the specific value depending on the temperature of the laser IC and its operating electrical conditions.

[0081] In this embodiment, considering the PCE attenuation factor after the laser IC temperature rises, the output energy of the laser heater 10 is adjusted according to the temperature of the laser heater 10 so that the laser heater 10 can output similar laser power under various temperature conditions, thereby achieving consistency in laser power output.

[0082] Please see Figure 3 In some embodiments, the laser heater 10 includes a laser heating element 11 and a heat sink 12. The laser heating element 11 is disposed on the heat sink 12. The temperature of the laser heater 10 includes the temperature of the laser heating element 11 and / or the temperature of the heat sink 12.

[0083] Specifically, the heat sink 12 can be made of a metal material with good heat dissipation performance, such as brass, copper, or aluminum alloy. The heat sink 12 can be located at the bottom of the laser heating element 11, and the top area of ​​the heat sink 12 is larger than the bottom area of ​​the laser heater 10, so as to quickly conduct the heat generated by the laser heating element 11 to a larger area of ​​the heat sink 12, and dissipate the heat to the surrounding environment through heat convection, heat radiation, etc., thereby controlling the temperature rise of the laser heating element 11.

[0084] In this embodiment, since the laser heating element 11 is disposed on the heat sink 12, and the two have similar temperatures or a predetermined correspondence, the temperature of the laser heater 10 may include the temperature of the laser heating element 11, or the temperature of the heat sink 12, or the temperature of the laser heating element 11 and the temperature of the heat sink 12, and is not limited here.

[0085] Please see Figure 4 In some embodiments, the aerosol generating apparatus 100 may further include a temperature sensor 90. The temperature sensor 90 may be disposed on the laser heating element 11 and / or the heat sink 12 (e.g., Figure 4 (As shown), to detect the temperature of the laser heating element 11 and / or the temperature of the heat sink 12. The temperature of the laser heating element 11 can be the real-time temperature of the laser heating element 11 during the process of the laser heater 10 radiating and heating the aerosol generation matrix 30. The temperature of the heat sink 12 can be the real-time temperature of the heat sink 12 during the process of the laser heater 10 radiating and heating the aerosol generation matrix 30.

[0086] In some embodiments, the controller 20 is configured to adjust the input power of the laser heater 10 based on the relationship between the energy output efficiency of the laser heater 10, the temperature of the laser heater 10, and the input power of the laser heater 10 during the suction period, so as to adjust the energy output efficiency of the laser heater 10.

[0087] Specifically, the relationship between the energy output efficiency of the laser heater 10, the temperature of the laser heater 10, and the input electrical energy of the laser heater 10 can be determined in advance through experiments, thereby obtaining curves showing the change of energy output efficiency with input electrical energy at multiple different temperatures. For example... Figure 5 As shown, the input electrical energy is represented by the input current. The two curves are: the curve of energy output efficiency as a function of input electrical energy at 25℃; and the curve of energy output efficiency as a function of input electrical energy at 45℃. Figure 5 It can be seen that when the input current of the laser heater 10 is between 3.3A and 4.3A, and the temperature of the laser heater 10 rises from 25℃ to 45℃, the energy output efficiency of the laser heater 10 will change by 3% to 10%.

[0088] This application addresses the PCE attenuation factor after laser IC temperature rise. Based on the relationship between the energy output efficiency of the laser heater 10, its temperature, and its input electrical energy, the input electrical energy of the laser heater 10 is adjusted according to its temperature to regulate its energy output efficiency, thereby adjusting the output energy and ensuring better consistency across multiple pumping time periods. For example, before adjustment, the energy output efficiency P1 of the laser heater 10 can be obtained based on its current temperature T1 and current input current I1, thus determining its output energy E1. If the output energy E1 in the current pumping time period is inconsistent with the standard output energy E2 in other pumping time periods, the current input current I1 can be adjusted according to the current temperature T1 to adjust the corresponding energy output efficiency P1, thereby adjusting the output energy E1 to make it as consistent as possible with the output energy E2. Thus, the laser heater 10 can output similar laser power under various temperature conditions and in multiple suction time periods, with the similarity being at least less than the 2% to 10% change rate of the laser power under the aforementioned unfeedback adjustment.

[0089] It should be noted that when the temperature of the laser heater 10 includes the temperature of the laser heating element 11, the controller 20 is configured to, during the suction period, adjust the input power of the laser heater 10 according to the first temperature of the laser heating element 11 based on a first relationship between the energy output efficiency of the laser heater 10, the first temperature of the laser heating element 11, and the input power of the laser heater 10, thereby adjusting the energy output efficiency of the laser heater 10. When the temperature of the laser heater 10 includes the temperature of the heat sink 12, the controller 20 is configured to, during the suction period, adjust the input power of the laser heater 10 according to the second temperature of the heat sink 12 based on a second relationship between the energy output efficiency of the laser heater 10, the second temperature of the heat sink 12, and the input power of the laser heater 10, thereby adjusting the energy output efficiency of the laser heater 10. When the temperature of the laser heater 10 includes the temperature of the laser heating element 11 and the temperature of the heat sink 12, the third temperature of the laser heater 10 can be determined based on the first temperature of the laser heating element 11 and the second temperature of the heat sink 12. The third relationship is obtained by fitting the aforementioned first and second relationships. The controller 20 is configured to adjust the input electrical energy of the laser heater 10 based on the third relationship and the third temperature of the laser heater 10 during the suction time period, so as to adjust the energy output efficiency of the laser heater 10.

[0090] Please see Figure 1 In some embodiments, the controller 20 is configured to adjust the output energy of the laser heater 10 according to the temperature of the aerosol generating matrix 30 during the suction period.

[0091] Specifically, research has found that the initial temperature of the aerosol-generating matrix varies depending on the environment in which the laser heating system operates, leading to differences in aerosol release. For example, compared to an environment with a temperature of 25°C or higher, the aerosol-generating matrix receiving the same energy of laser irradiation will release different amounts of aerosols. However, this difference is less significant than the difference caused by the temperature change of the matrix due to the energy accumulated in the aerosol-generating matrix and the overall system during heating. For instance, under continuous heating for a short period, the temperature rise of the aerosol-generating matrix can reach 100°C, a temperature difference rarely encountered within human activity range. Therefore, while considering the matrix temperature change caused by environmental temperature factors, it can be placed as the second priority among matrix temperature factors, with the first priority being the temperature rise of the matrix caused by the energy accumulated in the aerosol-generating matrix and the overall system during use.

[0092] The impact of this temperature rise on aerosol release can be analyzed as follows: Assuming all irradiated and heated matrix areas need to be heated to 350°C, and the matrix mass corresponding to each irradiated and heated matrix area is 20 mg, and the first irradiation absorbs 30 J of energy at 25°C, then, without considering matrix heat dissipation and self-heating, the temperature rise is proportional to the energy received. If it is heated to 350°C, the temperature rise after receiving 30 J of energy is 325°C. If, during use, the initial temperature of the aerosol-generating matrix rises to 100°C, then while still providing 30 J of energy, the temperature rise will be 325°C, meaning the temperature will reach 425°C. At this higher temperature, a greater amount of aerosol will inevitably be released, and more substances that are only released intensely at high temperatures will be released. Therefore, aerosol-generating matrices with such different initial temperatures will release aerosols of very different quantities and qualities under the same energy heating. The temperature of the aerosol generation matrix is ​​calculated as follows: For an initial temperature of 25℃, the temperature rise of the matrix in this region is based on ΔT=Q / (C*M), that is, 350℃-25℃=30J / (C*20mg), so C=4.61J / (℃*g); For an initial temperature of 100℃, the temperature rise is ΔT=Q / (C*M), that is, ΔT=30J / [4.61J / (℃*g)*20mg]≈325℃, so the temperature of the aerosol generation matrix rises to 100℃+325℃=425℃.

[0093] In this embodiment, regarding the temperature factor of the aerosol generating matrix 30, the output energy of the laser heater 10 can be adjusted according to the temperature of the aerosol generating matrix 30 so that the temperature reached by the aerosol generating matrix 30 after heating is as consistent as possible, thus ensuring the consistency of aerosol release.

[0094] For example, the temperature of the aerosol generating matrix 30 (including the initial temperature of the aerosol generating matrix 30 before heating or the real-time temperature of the aerosol generating matrix 30 during the heating process) can be monitored by the temperature sensor 90. Based on different matrix temperatures, the input electrical energy supplied to the laser heater 10 can be controlled to control the output energy of the laser heater 10, so that the average temperature of the matrix in the irradiated area eventually rises to a desired temperature range, such as 250°C to 500°C, preferably 300°C to 350°C, thereby ensuring the consistency of aerosol release.

[0095] In some embodiments, the controller 20 is configured to adjust the output energy of the laser heater 10 based on the relationship between the output energy of the laser heater 10, the initial temperature of the aerosol generating matrix 30 before heating, and the temperature rise of the aerosol generating matrix 30 during the aspiration period, so as to regulate the temperature rise of the aerosol generating matrix 30.

[0096] Specifically, under the premise of ensuring that the temperature reached by the aerosol generating matrix 30 after heating is consistent, the relationship between the output energy of the laser heater 10, the initial temperature of the aerosol generating matrix 30 before heating, and the temperature rise of the aerosol generating matrix 30 can be pre-determined through experiments. For ease of explanation, let the output energy of the laser heater 10 be E, the initial temperature of the aerosol generating matrix 30 before the next heating measured by the temperature sensor 90 at the matrix temperature measuring point be T0, and the average temperature rise reached by the aerosol generating matrix 30 after heating be ΔT. It is preferable to measure and calculate the temperature rise ΔT using an infrared thermometer. Under the premise of ensuring that the temperature reached by the aerosol generating matrix 30 after heating is consistent, the three factors have the following relationship as measured: when the initial temperature T0 is higher, the output energy E needs to be smaller, and the temperature rise ΔT is correspondingly smaller; when the initial temperature T0 is lower, the output energy E needs to be larger, and the temperature rise ΔT is correspondingly higher. Therefore, the output energy E can be adjusted based on the initial temperature T0, thereby adjusting the temperature rise ΔT to ensure that the temperature reached by the aerosol generation matrix 30 after heating is as consistent as possible, thus guaranteeing consistent aerosol release. It should be noted that the above relationship can be obtained through actual measurement, and the characteristic relationship of the array's practical range can be tabulated and written into the storage medium of the controller 20 for calculating the output energy E during each heating cycle.

[0097] Furthermore, to achieve more precise adjustment of the output energy E, this scheme can be combined with the aforementioned scheme of "adjusting the input energy of the laser heater 10 based on the relationship between the energy output efficiency of the laser heater 10, the temperature of the laser heater 10, and the input electrical energy of the laser heater 10, thereby adjusting the energy output efficiency of the laser heater 10 according to its temperature." The aforementioned scheme adjusts the input electrical energy of the laser heater 10 based on its temperature to regulate its energy output efficiency, thereby adjusting the output energy of the laser heater 10. The aim is to ensure that the laser heater 10 can output similar laser power under various temperature conditions, achieving consistency in laser power output. This scheme, however, considers the relationship between the output energy of the laser heater 10, the initial temperature of the aerosol generating matrix 30 before heating, and the temperature rise of the aerosol generating matrix 30. It adjusts the output energy of the laser heater 10 based on the initial temperature of the aerosol generating matrix 30 before heating to regulate the temperature rise of the aerosol generating matrix 30. The aim is to ensure that the temperature reached by the aerosol generating matrix 30 after heating is as consistent as possible, thus guaranteeing consistent aerosol release.

[0098] In other words, the controller 20 can be configured to adjust the output energy of the laser heater 10 based on the relationship between the output energy of the laser heater 10, the initial temperature of the aerosol generation matrix 30 before heating, and the temperature rise of the aerosol generation matrix 30 during the suction period, so as to ensure a consistent temperature rise of the aerosol generation matrix 30. Furthermore, when adjusting the output energy of the laser heater 10, the input energy of the laser heater 10 can be adjusted based on the relationship between the energy output efficiency of the laser heater 10, the temperature of the laser heater 10, and the input electrical energy of the laser heater 10, thereby adjusting the energy output efficiency of the laser heater 10 and thus more precisely regulating the output energy of the laser heater 10.

[0099] In this embodiment, the temperature sensor 90 can be a thermocouple, a thermistor, or other sensors that measure temperature by contact. For example... Figure 6 As shown, the aerosol generating matrix 30 may include a plurality of spaced-apart heating regions 31 (i.e., regions irradiated by a laser). A temperature sensor 90 may be located in an area of ​​the aerosol generating matrix 30 other than the area irradiated by the laser, for example, in the space between every two heating regions 31.

[0100] Of course, in other examples, the temperature sensor 90 can also be placed in the area to be heated 31, or other areas that can stably indicate the initial temperature of the aerosol generating matrix 30 before heating. After the position of the temperature sensor 90 is fixed, the relationship between the output energy of the laser heater 10, the initial temperature of the aerosol generating matrix 30 before heating, and the temperature rise of the aerosol generating matrix 30 can be measured. Based on this and combined with the relationship between the energy output efficiency of the laser heater 10, the temperature of the laser heater 10, and the input electrical energy of the laser heater 10, the output energy of the laser heater 10 can be adjusted to ensure consistent aerosol release.

[0101] Please see Figure 1 In some embodiments, the controller 20 is configured to adjust the output energy of the laser heater 10 according to the real-time temperature of the aerosol generating matrix 30 during the aspiration period, so as to regulate the temperature rise of the aerosol generating matrix 30.

[0102] Specifically, research has found that monitoring the temperature of a substrate area being irradiated and heated using temperature sensors is difficult to implement in practical engineering applications because the substrate heats up very quickly and is irradiated by laser, making it difficult to place contact temperature sensors in the substrate area.

[0103] In this embodiment, the temperature sensor 90 can be a non-contact temperature sensor such as a photodiode (PD) or an infrared thermopile sensor to detect the real-time temperature of the aerosol generating matrix 30 during the heating process. The real-time temperature of the aerosol generating matrix 30 during heating can then be used as feedback to adjust the input electrical energy to the laser heater 10, thereby adjusting the output energy of the laser heater 10. This ensures that the aerosol generating matrix 30 rises to the desired temperature range under each irradiation, thus improving the consistency of aerosol release from each irradiation of the aerosol generating matrix 30.

[0104] Please see Figure 1 and Figure 3 In some embodiments, the laser heater 10 includes a laser heating element 11 and a heat sink 12. The laser heating element 11 is disposed on the heat sink 12. The controller 20 is configured to determine the temperature of the aerosol generating matrix 30 based on the temperature of the heat sink 12, the heating interval between every two suction time periods, and / or the output energy of the laser heating element 11.

[0105] Specifically, in the aforementioned embodiments, the output energy of the laser heater 10 is adjusted according to the initial temperature of the aerosol generating matrix 30 before heating, and the output energy of the laser heater 10 is adjusted according to the real-time temperature of the aerosol generating matrix 30 during the heating process. Usually, the temperature of the aerosol generating matrix 30 is directly measured to intuitively perceive the temperature of the aerosol generating matrix 30. However, the measurement accuracy is poor in actual engineering applications because the aerosol generating matrix 30 cannot make close contact with the contact temperature sensor 90, and there are few non-contact temperature sensors 90 that can accurately and quickly measure the temperature in high-temperature environments.

[0106] Therefore, the embodiments of this application adopt an indirect measurement scheme, that is, instead of directly measuring the temperature of the aerosol generating matrix 30, they measure other parameters that are temperature-related. Considering that the aerosol generating matrix 30 can exchange heat with the internal and external environments of the system, the heating time interval is the main factor affecting the energy accumulation and energy release of the aerosol generating matrix 30, and it can be used as the main criterion for determining the temperature of the aerosol generating matrix 30. In addition, in the entire laser heating system, the heat sink heating indicates that the laser heater 10 has output energy to the aerosol generating matrix 30, and the aerosol generating matrix 30 also heats up; the heat sink cooling indicates that the laser heater 10 has not continued to output energy to the aerosol generating matrix 30, and the longer the time interval between two heatings, the greater the cooling of the heat sink, and the same is true for the aerosol generating matrix 30.

[0107] In this embodiment, the temperature of the heat sink 12, the heating interval time between two suction time periods, and / or the output energy of the laser heating element 11 can be experimentally measured. The relationship between these parameters and the aerosol generating matrix 30 can be determined. By using the temperature of the heat sink 12, a feedback parameter measured within the system, combined with the heating interval time and / or the output energy of the laser heating element 11 during the previous irradiation heating set by the system, the range of the temperature of the aerosol generating matrix 30 (including the initial temperature of the aerosol generating matrix 30 before heating or the real-time temperature of the aerosol generating matrix 30 during the heating process) can be inferred, thereby guiding the appropriate range of output energy that the laser heater 10 needs to provide during the next irradiation heating.

[0108] In this embodiment, the temperature sensor 90 can be a contact temperature sensor such as a thermistor or thermocouple, or a non-contact temperature sensor such as a photodiode or infrared thermopile sensor.

[0109] Please see Figure 1 , Figure 7 and Figure 8 In some embodiments, the controller 20 is configured to adjust the output energy of the laser heater 10 according to the region of the aerosol generation matrix 30 radiated by the laser heater 10 during the suction period.

[0110] Specifically, such as Figure 7 As shown, the aerosol generating matrix 30 consists of three structural segments: a filter segment 32, a connecting segment 33, and a matrix segment 34. The filter segment 32 is located at the top. The connecting segment 33, located below the filter segment 32, is a hollow cylinder enclosed by a complete outer paper structure. The matrix segment 34, located below the connecting segment 33, is a hollow cylinder formed by matrix material. The mouth suction position A is located at the end of the filter segment 32, contacting the filter segment 32 to suction and release the aerosol. Figure 7 It can be seen that the area to be heated 31a corresponding to laser heater 10a is closer to the mouth suction position A than the area to be heated 31b corresponding to laser heater 10b. The matrix portion closer to the mouth suction position A experiences a shorter aerosol travel distance to the mouth suction position, resulting in less heat loss leading to condensation and adsorption on nearby materials, and less loss due to the filter tip near the mouth suction position.

[0111] If the aforementioned matrix segment 34 is unfolded, the matrix regions irradiated by laser heaters 10a, 10b, to n are unfolded in a plane arranged longitudinally as shown in the view. Figure 9As shown, in cases where the irradiation area of ​​each laser is distributed in a "longitudinal" manner, the positional difference of the irradiation area under the same laser energy will affect the aerosols released by the aerosol generating matrix 30, either due to the distribution of the laser heater 10 or the relative movement between the laser heater 10 and the aerosol generating matrix 30.

[0112] Therefore, in this embodiment of the application, considering the irradiated area of ​​the aerosol generating matrix 30, the output energy of the laser heater 10 is adjusted according to the area of ​​the aerosol generating matrix 30 radiated by the laser heater 10, so that the aerosols released by the aerosol generating matrix 30 are consistent.

[0113] Please see Figure 1 and Figure 7 In some embodiments, the aerosol generating matrix 30 includes a plurality of regions 31 to be heated along the airflow direction. The controller 20 is configured to adjust the output energy of the laser heater 10 during the suction period based on the airflow path distance between the region of the aerosol generating matrix 30 radiated by the laser heater 10 and the suction position.

[0114] Specifically, such as Figure 7 and Figure 9 As shown, for different heating regions 31 of the aerosol generating matrix 30, the airflow path distance (or airway travel distance) between the heating region 31 and the suction position A is different.

[0115] Please see Figure 7 The region to be heated, 31a, is closer to the suction position A and is irradiated by the laser heater 10a. Under the same laser energy and matrix temperature conditions, the aerosol experiences less loss due to condensation along the path, resulting in a greater amount of aerosol being obtained at the suction position A. The region to be heated, 31b, is farther from the suction position A and is irradiated by the laser heater 10b. Therefore, the energy supply of the laser heater 10b needs to be higher to ensure that the aerosol released from the heating regions 31a and 31b to the suction position A is consistent.

[0116] In other words, the closer the airflow path distance between the area of ​​the aerosol generation matrix 30 radiated by the laser heater 10 and the suction position, the lower the output energy of the laser heater 10; conversely, the farther the airflow path distance between the area of ​​the aerosol generation matrix 30 radiated by the laser heater 10 and the suction position, the higher the output energy of the laser heater 10. The specific adjustment value of the output energy of the laser heater 10 can be set according to the specific size of the airflow path distance, adjusting it to ensure good consistency of the aerosol generated in each heated area 31.

[0117] The above analysis of the factors affecting the consistency of aerosol release and the corresponding adjustment of the energy output of the laser heater 10 based on the feedback of various parameters can make the amount of aerosol obtained from each suction as consistent as possible, resulting in a better user experience.

[0118] It should be noted that the aerosol generating apparatus 100 of this application embodiment can adjust the output energy of the laser heater 10 according to any one or more of the temperature of the laser heater 10, the temperature of the aerosol generating matrix 30, and the area of ​​the aerosol generating matrix 30 radiated by the laser heater 10, so that the aerosol released by each pump has better consistency, which is not limited here.

[0119] In summary, 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 features high energy density and fast power response, allowing for rapid energy radiation to the aerosol generating matrix 30 without the need for prior heating of the heating element, thus quickly generating aerosols without requiring long waiting times, resulting in a better user experience. Furthermore, during the suction period, the controller 20 adjusts the output energy of the laser heater 10 according to its operating conditions, ensuring good consistency in the aerosols released through each suction.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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 in that, include: A laser heater configured to radiate heat an aerosol-generating matrix; and A controller configured to adjust the output energy of the laser heater according to the operating conditions of the laser heater during the suction period.

2. The aerosol generating apparatus according to claim 1, characterized in that, The controller is configured to adjust the output energy of the laser heater according to the temperature of the laser heater during the suction period.

3. The aerosol generating apparatus according to claim 2, characterized in that, The laser heater includes a laser heating element and a heat dissipation element, wherein the laser heating element is disposed on the heat dissipation element; The temperature of the laser heater includes the temperature of the laser heating element and / or the temperature of the heat dissipation element.

4. The aerosol generating apparatus according to claim 2, characterized in that, The controller is configured to, during the suction period, adjust the input power of the laser heater based on the relationship between the energy output efficiency of the laser heater, the temperature of the laser heater, and the input power of the laser heater, thereby adjusting the energy output efficiency of the laser heater.

5. The aerosol generating apparatus according to claim 1, characterized in that, The controller is configured to adjust the output energy of the laser heater according to the temperature of the aerosol-generating matrix during the suction period.

6. The aerosol generating apparatus according to claim 5, characterized in that, The controller is configured to, during the aspiration period, adjust the output energy of the laser heater based on the relationship between the output energy of the laser heater, the initial temperature of the aerosol generating matrix before heating, and the temperature rise of the aerosol generating matrix, thereby adjusting the temperature rise of the aerosol generating matrix.

7. The aerosol generating apparatus according to claim 5, characterized in that, The controller is configured to adjust the output energy of the laser heater according to the real-time temperature during the heating process of the aerosol generation matrix during the suction period, so as to regulate the temperature rise of the aerosol generation matrix.

8. The aerosol generating apparatus according to claim 5, characterized in that, The laser heater includes a laser heating element and a heat dissipation element, wherein the laser heating element is disposed on the heat dissipation element; The controller is configured to determine the temperature of the aerosol generation matrix based on the temperature of the heat sink, the heating interval between two suction time periods, and / or the output energy of the laser heating element.

9. The aerosol generating apparatus according to claim 1, characterized in that, The controller is configured to adjust the output energy of the laser heater according to the area of ​​the aerosol-generating matrix radiated by the laser heater during the suction period.

10. The aerosol generating apparatus according to claim 9, characterized in that, The aerosol generating matrix includes multiple areas to be heated along the airflow direction; The controller is configured to adjust the output energy of the laser heater during the suction period based on the airflow path distance between the area where the laser heater radiates and heats the aerosol-generating matrix and the suction position.

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