Ultrasonic-based aerosol generation device and its control method

Abstract

This disclosure provides a novel ultrasonic-based aerosol generating apparatus and its control method that can reduce cartridge replacement costs. According to some embodiments of this disclosure, the ultrasonic-based aerosol generating apparatus may include: a replaceable cartridge storing a liquid aerosol forming matrix; and a control unit coupled to the cartridge. The control unit may include a control section and a vibration member that generates ultrasonic vibrations to vaporize the stored aerosol forming matrix. The control section can monitor the temperature of the vibration member and control its operation based on the monitoring results.

Description

Technical Field

[0001] This disclosure relates to an ultrasonic-based aerosol generating apparatus and its control method. More specifically, this disclosure relates to a novel ultrasonic-based aerosol generating apparatus with a structure capable of reducing cartridge replacement costs, and a control method implemented in the apparatus to protect vibrating components. Background Technology

[0002] In recent years, there has been a growing demand for alternative methods to overcome the shortcomings of conventional cigarettes. For example, there is a growing need for devices that generate aerosols by vaporizing a liquid aerosol-forming matrix (so-called "liquid aerosol generating devices"). Recently, an ultrasound-based aerosol generating device that vaporizes a liquid using ultrasonic vibration has been proposed.

[0003] Most ultrasonic-based aerosol generators proposed to date employ a cartridge (or vaporizer cartridge) replacement structure for user convenience. Furthermore, the replaceable cartridge basically consists of a liquid reservoir, a liquid core, and a vibrator. However, this structure suffers from the problem that the cost of cartridge replacement (or the unit price of a cartridge) increases because the vibrator, a relatively expensive component, is included within the cartridge.

[0004] Due to the aforementioned cost issues, some ultrasonic-based aerosol generators use a liquid refill method instead of replacing the cartridge. However, this liquid refill method complicates the structure of the aerosol generator and causes inconvenience for users who need to directly refill the liquid. Furthermore, during the refilling process, the liquid often gets on the user's clothes or body, causing significant discomfort.

[0005] On the other hand, the vibrator in an ultrasonic aerosol generating device is a component that generates ultrasonic vibrations to vaporize a liquid. However, when the vibrator operates without a vibrating object, the vibrational energy may be converted into heat energy, causing serious damage to the vibrator. For example, the vibrator may suffer physical damage due to high temperatures or its performance may be deformed, thus losing its original function. Summary of the Invention

[0006] Technical issues

[0007] The technical problem to be solved by some embodiments of this disclosure is to provide a novel ultrasonic-based aerosol generating device with a structure that can reduce the cost of cartridge replacement (or the unit price of cartridges).

[0008] Another technical problem to be solved by some embodiments of this disclosure is to provide a control method for protecting vibrating components in an ultrasonic-based aerosol generating apparatus.

[0009] The technical problem addressed in this disclosure is not limited to the technical problems described above. Other technical problems not mentioned will be clearly understood by those skilled in the art through the following description.

[0010] Solution to the problem

[0011] To address the aforementioned technical problems, an ultrasonic-based aerosol generating apparatus according to some embodiments of this disclosure may include: a replaceable cartridge for storing a liquid aerosol forming matrix, and a control unit comprising a control section and a vibrating member, which is coupled to the cartridge. The vibrating member generates ultrasonic vibrations to vaporize the stored aerosol forming matrix. In this case, the control section can monitor the temperature of the vibrating member and control its operation based on the monitoring results.

[0012] In some embodiments, when the control unit determines that the temperature or temperature change rate of the vibrating member is above a threshold, it causes the vibrating member to stop operating.

[0013] In some embodiments, the control unit can control the operation of the vibration member according to the temperature change pattern of the vibration member.

[0014] In some embodiments, the control unit can estimate the degree of consumption of the stored aerosol forming matrix based on the temperature change rate of the vibrating member.

[0015] In some embodiments, the cartridge may further include a vibration transmission member that transmits the generated ultrasonic vibrations to the stored aerosol forming matrix. When the cartridge is combined with the control body, the vibration transmission member and the vibration member may be in close contact with each other.

[0016] In some embodiments, the control unit may determine whether the vibration member and the vibration transmission member are in close contact, and control the operation of the vibration member based on the determination result.

[0017] In some embodiments, the vibrating member and the vibration transmission member may be made of conductors, and the control unit may determine whether the vibrating member and the vibration transmission member are in close contact based on whether there is an electrical connection between them.

[0018] In some embodiments, the vibration member can be based on a piezoelectric element, and the control unit can determine whether the vibration member and the vibration transmission member are in close contact based on the measurement result of the voltage generated by the vibration member.

[0019] The effects of the invention

[0020] According to some embodiments of this disclosure described above, the vibration component, which is a relatively expensive component, can be positioned closer to the control body than closer to the cartridge. Therefore, the cost of replacing the cartridge (or the unit price of the cartridge) can be significantly reduced.

[0021] Furthermore, by eliminating vibrating components from the cartridge, the cartridge structure can be simplified. This significantly reduces the defect rate during cartridge manufacturing and also facilitates waterproof and / or dustproof designs.

[0022] Furthermore, it is possible to prevent atomization deviations caused by misalignment of the vibrating component. For example, when the vibrating component is included in the cartridge, it is replaced every time the cartridge is changed, potentially leading to atomization deviations. In other words, misalignment of the vibrating component (e.g., manufacturing defects) is directly reflected in the aerosol generating device, resulting in potentially different atomization volumes each time the cartridge is replaced. However, when the vibrating component is positioned close to the control unit, uniformity of atomization can be maintained without replacing the vibrating component.

[0023] Furthermore, a vibration transmission component can be installed within the smoke cartridge. This component transmits the vibrations generated by the vibrating element to the liquid, thus enabling the efficient generation of aerosols even when the vibrating element is positioned close to the control unit.

[0024] Furthermore, when the cartridge is combined with the control unit, the vibration transmission component and the vibration component can form a tightly fitted structure. Therefore, the vibration generated by the vibration component can be transmitted to the liquid without loss through the vibration transmission component.

[0025] Furthermore, by placing a porous component comprising multiple pores at an appropriate distance from the vibration transmission component, it is possible to ensure that aerosols are generated immediately during suction. Specifically, the vibration transmitted by the vibration transmission component pushes the liquid between the vibration transmission component and the porous component toward the porous component. The propelled liquid rapidly vaporizes as it passes through the aforementioned multiple pores, thereby enabling the immediate generation of aerosols without delay during suction.

[0026] Furthermore, the operation of the vibrating component can be controlled based on temperature monitoring results. For example, when the rate of temperature change or the measured temperature exceeds a threshold, the operation of the vibrating component can be stopped. Therefore, it is possible to prevent changes in the characteristics of the vibrating component or physical damage due to high temperatures in advance.

[0027] At this point, the degree of liquid consumption can be estimated based on the temperature monitoring results of the vibrating component. For example, when the rate of temperature change exceeds a threshold, it can be estimated that the liquid is depleted. Therefore, even without additional components (e.g., sensors) for measuring the remaining liquid level, the degree of liquid consumption can be accurately determined.

[0028] The effects of the technical concept of this disclosure are not limited to those described above. Other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0029] Figure 1 A schematic diagram illustrating the structure of an ultrasonic-based aerosol generating apparatus according to some embodiments of the present disclosure is provided.

[0030] Figure 2 A schematic diagram illustrating the structure of a vaporizer according to some embodiments of the present disclosure is provided.

[0031] Figure 3 This is a schematic diagram illustrating the detailed structure of an ultrasonic-based aerosol generating apparatus according to some embodiments of the present disclosure.

[0032] Figure 4 This is a schematic diagram illustrating a vibration transmission member according to some embodiments of the present disclosure.

[0033] Figure 5 This is a schematic diagram illustrating a porous component according to some embodiments of the present disclosure.

[0034] Figure 6 This is a schematic diagram illustrating the airflow path structure of an ultrasonic-based aerosol generating apparatus according to some embodiments of the present disclosure.

[0035] Figure 7 This is a schematic diagram illustrating a control method for an ultrasonic-based aerosol generation apparatus according to some embodiments of the present disclosure.

[0036] Figure 8 This is a schematic diagram for further illustration of a control method for an ultrasonic-based aerosol generating apparatus according to some embodiments of the present disclosure.

[0037] Figure 9 and Figure 10 This is a schematic diagram illustrating a cartridge identification method for an ultrasonic-based aerosol generating apparatus according to some embodiments of the present disclosure. Detailed Implementation

[0038] The preferred embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. The advantages and features of this disclosure, as well as the methods for implementing them, will become apparent from the accompanying drawings and the embodiments described in detail below. However, the technical concept of this disclosure is not limited to the embodiments described below, and can be implemented in various different forms. The following embodiments are only used to complete the technical concept of this disclosure, enabling those skilled in the art to fully understand the scope of this disclosure. The technical concept of this disclosure is defined by the scope of the claims.

[0039] When adding reference numerals to components in all the accompanying drawings, it should be noted that the same reference numerals refer to the same components, even if they are shown in different drawings. Furthermore, in the course of describing this disclosure, detailed descriptions of the relevant prior art components or functions may be omitted if it is believed that such detailed descriptions would obscure the gist of this disclosure.

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used in the following embodiments are to be understood in a manner commonly understood by those skilled in the art to which this disclosure pertains. Furthermore, terms that are commonly used and defined in dictionaries are not subject to unusual or excessive interpretation without explicit specific definitions. The terminology used in the following embodiments is for illustrative purposes only and is not intended to limit the scope of this disclosure. In the following embodiments, unless otherwise specified, singular nouns also include plural forms.

[0041] Furthermore, in describing the components of this disclosure, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used only to distinguish a component from other components, and the nature, order, or sequence of the related components is not limited by the terms. It should be understood that if a component is described as "connected," "combined," or "linked" to another component, it may mean that the component is not only directly "connected," "combined," or "linked" to another component, but also indirectly "connected," "combined," or "linked" via a third component.

[0042] The terms “comprises” and / or “comprising” as used in this disclosure specify the presence of the described components, steps, operations and / or elements, but do not exclude the presence or addition of one or more other components, steps, operations and / or elements.

[0043] Before describing the various embodiments of this disclosure, some terms used in the embodiments will be clarified.

[0044] In the following embodiments, "aerosol forming matrix" can refer to a material capable of forming an aerosol. An aerosol can include volatile compounds. The aerosol forming matrix can be solid or liquid. For example, a solid aerosol forming matrix can include solid materials based on tobacco raw materials, such as reconstituted tobacco, pipe tobacco, reconstituted tobacco, etc. A liquid aerosol forming matrix can include liquid compositions based on nicotine, tobacco extracts, and / or various flavorings. However, the scope of this disclosure is not limited to the examples listed above. In the following embodiments, "liquid" can refer to a liquid aerosol forming matrix.

[0045] In the following embodiments, "aerosol generating device" can refer to a device that generates aerosols using an aerosol forming matrix in order to generate aerosols that can be directly inhaled into the lungs of a user through the user's mouth.

[0046] In the following embodiments, "puff" refers to the user's inhalation, which means the state of being drawn into the user's oral cavity, nasal cavity, or lungs through the user's mouth or nose.

[0047] In the following, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0048] Figure 1 A schematic diagram illustrating the structure of an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure is provided. In particular, Figure 1 The following examples illustrate the state before and after installing the smoke cartridge 10.

[0049] like Figure 1 As shown, the ultrasonic-based aerosol generating device 1 may include a smoke cartridge 10 and a control unit 20. However, Figure 1 Only components relevant to embodiments of this disclosure are shown. Therefore, those skilled in the art to which this disclosure pertains will understand that other components may also be included. Figure 1 Other general components besides those shown. The components of aerosol generating apparatus 1 will now be described.

[0050] The cartridge 10 can refer to a container used to store a liquid aerosol forming matrix. Furthermore, depending on the circumstances, the cartridge 10 may also include part or all of the components of a mouthpiece and a vaporizer (e.g., a cartomizer). For example, as shown, the cartridge 10 can be configured to also include some components of a mouthpiece 110 and a vaporizer 30. As another example, the cartridge 10 can also be configured to include only some components of the vaporizer 30, excluding the mouthpiece 110.

[0051] Figure 1 As shown, the cartridge 10 and the control body 20 are combined to form the upper part of the aerosol generating device 1, and the control body 20 forms the lower part of the aerosol generating device 1, but the scope of this disclosure is not limited to these structures. In some other embodiments, the cartridge 10 may be a component installed inside the housing of the aerosol generating device 1.

[0052] The cartridge 10 can be a replaceable component. That is, when the liquid in the cartridge 10 is depleted, it can be replaced with a new cartridge without needing to refill it. In this case, the overall structure of the aerosol generating device 1 can be simplified, thus ensuring advantages in the manufacturing process (e.g., reduced manufacturing costs, reduced defect rates, etc.). Furthermore, since the inconvenience of consumers needing to directly refill the liquid is eliminated, the product's market competitiveness can be improved. However, the replacement cost of the cartridge 10 may be a problem, which can be solved by excluding some components of the vaporizer 30 (i.e., relatively expensive vibrating components) from the cartridge 10. In the following explanation, the premise that the cartridge 10 is a replaceable component will be further explained.

[0053] like Figure 1 As schematically shown, the cartridge 10 according to an embodiment may include a mouthpiece 110 and a portion of a vaporizer 30. More specifically, as Figure 2 As illustrated, the vaporizer 30 may include components such as a liquid storage chamber, a vibrating member 360, and an airflow pipe 320. The liquid storage chamber is used to store a liquid aerosol forming matrix 311. The vibrating member 360 vaporizes the liquid through vibration (ultrasonic vibration), and the airflow pipe 320 is used to transmit the vaporized liquid towards the mouthpiece. The vibrating member 360 may be positioned close to the control body 20 (e.g., Figure 2 (below the dotted line in the image), while the remaining components can be positioned close to the cartridge 10 (e.g., below the dotted line in the image), Figure 2 (Above the dotted line in the diagram). In this case, the vaporizer 30 is constructed by combining the cartridge 10 and the control unit 20, while excluding the relatively expensive vibrating component from the cartridge 10, thereby significantly reducing the replacement cost (or unit price) of the cartridge 10. Detailed structure of the cartridge 10 will be discussed later. Figure 3 The accompanying diagrams provide a more detailed explanation.

[0054] In some embodiments, such as Figure 2 As shown, the vaporizer 30 may also include a vibration transmission member 340 disposed near the cartridge 10. The vibration transmission member 340 can smoothly generate an aerosol by transmitting vibrations generated by the vibration member 360 disposed near the control body 20 to the liquid 311. The vibration transmission member 340 will be discussed later. Figure 3 The accompanying diagrams provide a more detailed explanation.

[0055] Will refer again Figure 1 Let me continue explaining.

[0056] The control unit 20 can perform the function of controlling the aerosol generating device 1 as a whole. As shown in the figure, the control unit 20 can be combined with the cartridge 10. If the cartridge 10 is a component built into the aerosol generating device 1, the control unit 20 can be combined with the upper shell including the cartridge 10.

[0057] As shown in the figure, the control unit 20 may include a control unit 210 and a battery 220. Furthermore, as described above, the control unit 20 may also include a vibration member 360, etc. This will be referred to later. Figure 3 Other components of the control unit 20 will be described below, while the control unit 210 and the battery 220 will be briefly described in the following text.

[0058] The control unit 210 can control the operation of the aerosol generating device 1 as a whole. For example, the control unit 210 can control the operation of the vaporizer 30 and the battery 220, as well as the operation of other components included in the aerosol generating device 1. The control unit 210 can control the power supplied by the battery 220, the vibration frequency and vibration intensity of the vibrating member 360, etc. When the aerosol generating device 1 also includes a heater (not shown in the figure), the control unit 210 can also control the heating temperature of the heater (not shown in the figure).

[0059] Furthermore, the control unit 210 can determine whether the aerosol generating device 1 is in an operational state by checking the status of each component of the aerosol generating device 1.

[0060] In some embodiments, the control unit 210 can determine whether the vibration transmission member 340 and the vibration member 360 are in close contact, and identify the bonding state of the cartridge 10 (e.g., whether it is bonded, the degree of bonding, etc.) based on the determination result. For example, the control unit 210 can determine whether they are in close contact based on whether there is electricity between the vibration transmission member 340 and the vibration member 360, or by utilizing the piezoelectric phenomenon of the vibration member 360. Furthermore, the control unit 210 can identify the bonding state of the cartridge 10 based on the determination result without the need for a separate sensor. According to this embodiment, there is no need to provide an additional sensor for identifying the bonding state of the cartridge 10, thereby reducing the manufacturing cost of the aerosol generating device 1 and also reducing the complexity of the internal structure. (See below for further details.) Figure 9 and Figure 10 This embodiment will be described in detail.

[0061] The control unit 210 can be implemented by at least one processor. This processor can be implemented by a plurality of gate arrays, or by a combination of a general-purpose microprocessor and a memory storing a program executable by that microprocessor. Furthermore, as will be understood by those skilled in the art to which this disclosure pertains, the control unit 210 can also be implemented by other forms of hardware.

[0062] In addition, the battery 220 can supply the power required for the operation of the aerosol generating device 1. For example, the battery 220 can supply power to enable the vibrating member 360 constituting the vaporizer 30 to vibrate, and can also supply the power required for the operation of the control unit 210.

[0063] In addition, the battery 220 can supply the power required for the operation of electrical components such as the display (not shown), sensor (not shown), and motor (not shown) installed in the aerosol generating device 1.

[0064] The detailed structure of the control body 20 will be discussed later. Figure 3 The following figures illustrate this in more detail.

[0065] At this point, we have referred to Figure 1 and Figure 2 An ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure is illustrated schematically. As described above, the vibrating member 360, being a relatively expensive component, can be positioned closer to the control body 20 rather than closer to the cartridge 10. This significantly reduces cartridge replacement costs (or cartridge unit price). Furthermore, since the vibrating member 360 is excluded from the cartridge 10, the structure of the cartridge 10 can be simplified, the defect rate during cartridge manufacturing can be significantly reduced, and waterproof and / or dustproof designs are easier to implement. Moreover, deviations in atomization volume due to deviations in the vibrating member 360 (e.g., manufacturing deviations) can be prevented in advance. For example, when the vibrating member 360 is included in the cartridge 10, it is replaced every time the cartridge 10 is replaced, potentially leading to atomization volume deviations. However, when the vibrating member 360 is positioned closer to the control body 20, the same vibrating member 360 can be used continuously, thereby maintaining uniformity in atomization volume.

[0066] In the following text, reference will be made to Figure 3 The accompanying drawings will illustrate the detailed structure and operating principle of the ultrasonic-based aerosol generating device 1.

[0067] Figure 3 This is a schematic diagram illustrating the detailed structure of an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure. In particular, Figure 3 The following examples illustrate the state before and after installing the smoke cartridge 10.

[0068] like Figure 3 As shown, the cartridge 10 may include a cartridge shell, a mouthpiece 110, a liquid storage chamber 310, a vibration transmission component 340, and an airflow tube 320. However, Figure 3 Only components relevant to embodiments of this disclosure are shown. Therefore, those skilled in the art to which this disclosure pertains will understand that other components may also be included. Figure 3 Other common components besides those shown. The components of the cartridge 10 will be described below.

[0069] The cartridge casing can form the appearance of cartridge 10. Although Figure 3The outer wall of the liquid reservoir 310 and the cartridge shell are not shown separately, but a portion of the cartridge shell may or may not constitute the outer wall of the liquid reservoir 310. Furthermore, a portion of the cartridge shell may serve as the mouthpiece 110, or it may be designed as a separate mouthpiece structure mounted on the cartridge shell. The cartridge shell may be made of a suitable material capable of protecting the components inside the cartridge 10.

[0070] Furthermore, the cartridge shell can have an open lower end. A vibration transmission member 340 can be provided near the open lower end. Thus, by combining the cartridge 10 and the control body 20, the vibration transmission member 340 can be in close contact with the vibration member 360. That is, when the cartridge 10 is installed, a structure can be formed in which the vibration transmission member 340 and the vibration member 360 are in close contact. This structure maximizes the vibration transmission area and minimizes the loss during vibration transmission, thereby ensuring rapid aerosol generation and sufficient atomization.

[0071] Additionally, the mouthpiece 110 can be located at one end of the aerosol generating device 1 or the cartridge 10 and contact the user's mouth, allowing the user to inhale the aerosol generated in the cartridge 10. In other words, when the user holds the mouthpiece 110 and inhales, the aerosol generated in the cartridge 10 can be delivered to the user through the mouthpiece 110.

[0072] Additionally, the reservoir 310 can store the liquid aerosol forming matrix 311. The reservoir 310 may include one or more storage spaces. For example, the reservoir 310 may have multiple storage spaces to store aerosol forming matrices with different compositions or composition ratios.

[0073] Additionally, the vibration transmission member 340 can transmit the vibration generated by the vibration member 360 to the liquid 311. For example, the vibration transmission member 340 can vaporize the liquid 311 by transmitting the vibration generated by the vibration member 360 to the liquid 311 located in the periphery. Furthermore, the vibration transmission member 340 can also prevent the liquid 311 from leaking downwards (i.e., in the direction of the control body 20).

[0074] The vibration transmission member 340 may be located near the open lower end of the cartridge 10 and include a flat portion, and may be configured to project downwards. For example, as Figure 3 or Figure 4 As shown, the vibration transmission member 340 may include a flat lower surface 341 and an inclined surface 342 for causing the lower surface 341 to protrude downward. In this case, by combining the cartridge 10 with the control body 20, the flat lower surface 341 can easily fit tightly against the vibration member 360.

[0075] On the other hand, the vibration transmission member 340 may be made of a material and / or shape capable of smoothly transmitting vibrations, and the specific material and / or shape may vary depending on the embodiment.

[0076] In some embodiments, the thickness of at least a portion (e.g., the lower surface) of the vibration transmission member 340 may be from about 0.01 mm to 1 mm, preferably from about 0.02 mm to 0.7 mm or about 0.03 mm to 0.5 mm, more preferably from about 0.03 mm to 0.1 mm, about 0.03 mm to 0.2 mm, about 0.03 mm to 0.3 mm or about 0.03 mm to 0.4 mm. Within the above numerical range, losses during vibration transmission can be minimized, and adequate durability can be ensured. If the vibration transmission member 340 is too thick, vibration can be absorbed by the vibration transmission member 340; if the vibration transmission member 340 is too thin, adequate durability cannot be ensured, and the vibration transmission member 340 may be easily damaged.

[0077] Furthermore, in some embodiments, the vibration transmission member 340 may be made of a material with appropriate strength (e.g., a rigid material), such as metal. For example, the vibration transmission member 340 may be made of a metallic material such as stainless steel or aluminum, in which case not only can the vibration absorbed by the vibration transmission member 340 be minimized, but also the material deformation caused by contact with the liquid 311 can be minimized.

[0078] Furthermore, in some embodiments, the vibration transmission member 340 includes a flat lower surface (e.g., lower surface 341) and an inclined surface (e.g., inclined surface 342) that causes the lower surface (e.g., lower surface 341) to protrude downwards (see reference). Figure 3 or Figure 4 The angle formed by the vertical side of the lower surface (i.e., the insertion direction of the cartridge 10) and the inclined surface (e.g., inclined surface 342) can be from about 15 degrees to 70 degrees. Preferably, the angle can be from about 20 degrees to about 60 degrees, from about 25 degrees to about 55 degrees, or from about 30 degrees to about 50 degrees. Within the above numerical range, the contact area between the lower surface (e.g., lower surface 341) and the vibrating member 360 can be sufficiently ensured, and the angle of the inclined surface (e.g., inclined surface 342) can concentrate the vibration transmission in the airflow pipe 330, thereby increasing the vaporization rate and the amount of atomization.

[0079] On the other hand, in some embodiments, such as Figure 3As shown, the cartridge 10 may further include a fixing member 350, which is used to fix the periphery of the vibration transmission member 340. Furthermore, by fixing the periphery of the vibration transmission member 340, the fixing member 350 allows the central portion (i.e., the flat portion) of the vibration transmission member 340 to transmit vibration more smoothly, thereby increasing the vaporization rate and the amount of atomization. Additionally, the fixing member 350 also acts as an absorber, preventing vibrations reaching the vibration transmission member 340 from being transmitted to the outside of the aerosol generating device 1. Therefore, preferably, the fixing member 350 is made of a material such as silicone that can absorb vibrations and undergoes almost no physical or chemical changes (e.g., a material that does not undergo physical or chemical changes upon contact with a liquid). Furthermore, the fixing member 350 also prevents leakage of liquid 311 or aerosol downwards by sealing the gap between the vibration transmission member 340 and the cartridge shell.

[0080] The specific shape and / or number of the fixing members 350 can be designed in various ways. For example, the fixing members 350 can be designed as a ring shape extending around the vibration transmission member 340, or multiple fixing members 350 can be designed to fix the periphery of the vibration transmission member 340.

[0081] Furthermore, in some embodiments, the smoke cartridge 10 may also include a porous component 330, which is spaced apart from the vibration transmission component 340. For example, Figure 5 As illustrated, the porous component 330 can refer to a component including a plurality of holes 331. For example, the porous component 330 may include, but is not limited to, perforated components (e.g., perforated plates), mesh components (e.g., mesh panels), etc. Figure 3 As shown, the porous member 330 can be spaced apart from the vibration transmission member 340 and is disposed near the lower end of the airflow pipe 320. In this case, the vibration transmitted by the vibration transmission member 340 propels the liquid 311 between the vibration transmission member 340 and the porous member 330 toward the porous member 330, and the propelled liquid 311 rapidly vaporizes as it passes through the multiple holes 331. Therefore, an aerosol can be generated immediately during inhalation, thereby improving the user's smoking satisfaction.

[0082] For example, the porous component 330 can be made of materials such as plastics, metals (e.g., stainless steel), or silicone. However, this disclosure is not limited thereto.

[0083] Furthermore, the shape of the porous component 330, the size of the holes 331, and the spacing can be designed in various ways, which may vary depending on the embodiment.

[0084] In some embodiments, the size of the hole 331 (e.g., Figure 5The diameter D) can be from about 1 μm to 500 μm, preferably from about 1 μm to 400 μm, 1 μm to 300 μm, 1 μm to 200 μm, or 1 μm to 100 μm. The size of the pore 331 is related to the particle size of the aerosol. Within the above-mentioned range, aerosols with suitable particle sizes can be generated, ensuring sufficient atomization. If the size of the pore 331 is too small, aerosols containing very small, invisible particles may be generated, thereby reducing the visible atomization. Furthermore, the amount of aerosol generated may also be reduced due to the inability to vaporize effectively.

[0085] In some embodiments, the spacing between the vibration transmission member 340 and the porous member 330 can be from about 0.1 mm to 2.0 mm, preferably from about 0.1 mm to 1.8 mm, about 0.1 mm to 1.5 mm, about 0.2 mm to 1.2 mm, or about 0.3 mm to 1.0 mm. Within these numerical ranges, the transfer of liquid 311 and the generation of aerosol can be smoothly achieved. If the spacing is too large, the vibration transmitted by the vibration transmission member 340 may be absorbed by the liquid 311, thereby reducing the amount of atomization. Conversely, if the spacing is too small, the liquid 311 may not be able to transfer smoothly between the vibration transmission member 340 and the porous member 330, and therefore the amount of atomization may be reduced.

[0086] In some embodiments, the porous member 330 may have a flat shape (e.g., plate-like) and a thickness of about 0.01 mm to 5 mm. Preferably, the thickness may be about 0.02 mm to 3 mm or about 0.03 mm to 2 mm. Within these numerical ranges, aerosols can be generated smoothly, the vaporization rate can be increased, and adequate durability can be ensured. For example, as illustrated, if the porous member 330 has an appropriately thin thickness, the porous member 330 also vibrates due to the transmitted vibrations, thereby accelerating vaporization and preventing the pores 311 from being blocked by condensed aerosols adhering to them. Therefore, aerosols can be generated smoothly.

[0087] On the other hand, in some embodiments, the cartridge 10 may also include a heater (not shown). The heater is disposed around the vibration transmission member 340 or the porous member 330, and accelerates vaporization by vibration by heating the liquid 311. The heater can function as an auxiliary element to aid in the vaporization of the liquid 311. For example, since the aerosol forming matrix 311 is a viscous liquid, satisfactory vaporization performance may be difficult to obtain by ultrasonic vibration alone; in this case, the vaporization performance of the aerosol generating apparatus 1 can be improved by using a heater (not shown). The heating temperature of the heater can be set much lower than the heater temperature of a typical heated aerosol generating apparatus, so the additional power consumption may be minimal. The heater can be controlled by the control unit 210, and various control methods can be used.

[0088] For example, the control unit 210 can increase the heating temperature of the heater whenever user suction is sensed. Suction can be sensed by an airflow sensor, but the scope of this disclosure is not limited thereto.

[0089] As another example, the control unit 210 can maintain a constant heating temperature of the heater during smoking, regardless of the user's inhalation. In this case, the liquid 311 can be kept in a state where it is easily vaporized during smoking.

[0090] As another example, the control unit 210 can determine the heating temperature of the heater in response to user input. For instance, when the user selects a high atomization level, the control unit 210 can increase the heating temperature of the heater, and vice versa. In this case, an atomization level suitable for the user's preference can be provided, thereby improving the user's smoking satisfaction.

[0091] As another example, the control unit 210 can determine the heating temperature of the heater by analyzing the user's inhalation pattern. The inhalation pattern can be defined based on, but is not limited to, inhalation length, inhalation intensity, and inhalation interval. Specifically, when the inhalation length or inhalation intensity increases, or the inhalation interval decreases, the control unit 210 can increase the heating temperature of the heater. This is because prolonged or forceful inhalation during smoking may indicate insufficient atomization. Conversely, in the opposite case, the control unit 210 can decrease the heating temperature of the heater. Furthermore, when it is determined that the inhalation interval, inhalation length, or inhalation intensity remains constant, the control unit 210 can maintain the heating temperature of the heater at a constant temperature.

[0092] As another example, the control unit 210 can control the heater based on various combinations of the examples described above.

[0093] Will refer again Figure 3 The components of control body 20 will be described further.

[0094] like Figure 3 As shown, the control unit 20 may include a main housing 230, a vibration member 360, a control unit 210, and a battery 220. However, Figure 3 Only components relevant to embodiments of this disclosure are shown. Therefore, those skilled in the art to which this disclosure pertains will understand that other components may also be included. Figure 3 Other common components besides those shown. The components of control body 20 will now be described.

[0095] The main housing 230 can form the appearance of the control body 20. Depending on the circumstances, the main housing 230 can also form the appearance of the aerosol generating device 1. The main housing 230 can be made of a suitable material capable of protecting the components inside the control body 20. Figure 3 The illustration shows an example where the main body shell 230 forms a space for the insertion (installation) of the smoke cartridge 10. However, the scope of this disclosure is not limited thereto, and the smoke cartridge 10 and the control body 20 can be combined in other ways.

[0096] To avoid redundancy, descriptions of the control unit 210 and battery 220 will be omitted. For descriptions of these, please refer to [link to relevant documentation]. Figure 1 The explanatory section.

[0097] The vibrating member 360 can generate vibration (ultrasonic vibration) to vaporize the liquid aerosol forming matrix 311. For example, the vibrating member 360 can be implemented as a piezoelectric element capable of converting electrical energy into mechanical energy, thereby generating vibration according to the control of the control unit 210. The operating principle of the piezoelectric element will be clearly understood by those skilled in the art, and therefore will not be described in detail here. The vibrating member 360 can be electrically connected to the control unit 210 and the battery 220.

[0098] In some embodiments, the vibrating member 360 may include a flat portion (e.g., plate-like), which, when combined with the cartridge 10, allows the flat portions of the vibrating member 360 and the vibration transmission member 340 to be in close contact with each other (see reference). Figure 3 (Right side). In the above-described combination structure, the vibration transmission area can be maximized while the vibration loss is minimized, thus increasing the atomization amount. Furthermore, the vibration member 360 is arranged in an open form (e.g., open upwards) at the junction with the cartridge 10, allowing the vibration member 360 to be in close contact with the vibration transmission member 340. In this case, cleaning the vibration member 360 is simple and easy; moreover, when installing the cartridge 10, the vibration member 360 can easily be in close contact with the vibration transmission member 340. In some embodiments, a coupling gel can be applied between the vibration member 360 and the vibration transmission member 340. In this case, ultrasonic vibration can be transmitted to the liquid 311 without loss through the vibration transmission member 340.

[0099] Furthermore, in some embodiments, the vibration frequency of the vibrating member 340 can be approximately 20 kHz to 1500 kHz, or approximately 50 kHz to 1000 kHz, or approximately 100 kHz to 500 kHz. Within these numerical ranges, appropriate vaporization rate and atomization amount can be ensured. However, the scope of this disclosure is not limited thereto.

[0100] On the other hand, in some embodiments, such as Figure 3 As shown, the control body 20 may further include a fixing component 370, which is configured to fix the periphery of the vibrating member 360. The fixing component 370 protects the vibrating member 360 and absorbs vibrations generated by the vibrating member 360, preventing them from being transmitted to the main body housing 230. Therefore, preferably, the fixing component 370 is made of a vibration-absorbing material such as silicone. Furthermore, the fixing component 370 can be made of a waterproof or moisture-proof material, thereby sealing the gap between the vibrating member 360 and the main body housing 230. In this case, the problem of control body 20 malfunctioning due to leakage of liquid (e.g., liquid 311) or gas (e.g., aerosol) into the gap between the main body housing 230 and the vibrating member 360 can be greatly reduced. For example, damage or malfunction of the control body 20 due to moisture can be prevented in advance.

[0101] The specific shape and / or number of the fixing components 370 can be designed in various ways. For example, the fixing components 370 can be designed as a ring shape extending around the vibrating member 360, or multiple fixing components 370 can be designed to fix the periphery of the vibrating member 360.

[0102] In the following text, reference will be made to Figure 6 Explain the airflow path structure of the ultrasonic-based aerosol generation device 1.

[0103] Figure 6 This is a schematic diagram illustrating the airflow path structure of an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure. Furthermore, Figure 6 The arrows of different shapes represent the flow of air (e.g., outside air and aerosols) that occurs during suction.

[0104] like Figure 6As shown, an airflow path for external air (refer to the dashed arrow) can be formed from one or both sides of the aerosol generating device 1 to near the lower part of the airflow pipe 320 where the porous member 330 is located. The incoming external air can mix with the vaporized aerosol as it passes through the porous member 330. The mixed external air and aerosol can be moved towards the mouthpiece 110 by suction along the airflow path inside the airflow pipe 320. In the airflow path structure described above, the external air and the vaporized aerosol are properly mixed in the airflow pipe 320, thereby forming a high-quality aerosol.

[0105] At this point, we have referred to Figures 3 to 6 The detailed structure and operating principle of an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure are described. As described above, the vibration transmission member 340, located near the cartridge 10, transmits the vibration generated by the vibration member 360 to the liquid 311, thereby enabling aerosol generation smoothly even when the vibration member 340 is located close to the control body 20. Furthermore, by combining the cartridge 10 and the control body 20, a structure can be formed in which the vibration transmission member 340 and the vibration member 360 are in close contact. Therefore, the vibration generated by the vibration member 360 can be transmitted to the liquid 311 without loss through the vibration transmission member 340, thereby improving the vaporization rate and atomization volume. In addition, by providing a porous member 330 including multiple holes at a suitable distance from the vibration transmission member 340, it is ensured that aerosol is generated immediately upon inhalation.

[0106] In the following text, reference will be made to Figure 7 The following figures illustrate a control method for an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure. The control method described below can be executed by the control unit 210 of the aerosol generating apparatus 1. Therefore, when the subject of a specific action is omitted in the following description, it can be understood that the action is executed by the control unit 210.

[0107] Figure 7 A schematic flowchart illustrating a control method for an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure is provided.

[0108] like Figure 7 As shown, the above control method can begin from step S10, which involves monitoring the temperature of the vibrating component 360. The specific method by which the control unit 210 monitors the temperature of the vibrating component 360 in this step may vary depending on the embodiment.

[0109] In some embodiments, such as Figure 8 As shown, the temperature sensor 212 is disposed around the vibrating member 360, and the control unit 210 can measure and monitor the temperature of the vibrating member 360 through the temperature sensor 212.

[0110] In some embodiments, the control unit 210 may use the temperature coefficient of resistance to measure the temperature of the vibrating member 360. For example, the control unit 210 may also use the degree of change in resistance and the temperature coefficient of resistance of the resistor connected to the vibrating member 360 to measure and monitor the temperature of the vibrating member 360.

[0111] In step S20, the control unit 210 can estimate the degree of liquid consumption or control the operation of the vibrating member 360 based on the temperature monitoring results of the vibrating member 360. However, the specific estimation method or control method may vary depending on the embodiment.

[0112] In some embodiments, the control unit 210 can estimate the degree of liquid 311 consumption based on the measured temperature or temperature change rate of the vibrating member 360. For example, when the measured temperature or temperature change rate of the vibrating member 360 exceeds a threshold, the control unit 210 can estimate that the liquid 311 has been depleted. This is because when the liquid 311 is depleted, the vibrating member 360 will operate without a vibration transmission object, and therefore the temperature of the vibrating member 360 may rise rapidly and instantaneously.

[0113] Furthermore, in some embodiments, the control unit 210 can estimate the degree of liquid 311 consumption based on the temperature change pattern of the vibrating member 360. The temperature change pattern can be defined, for example, based on the rate of temperature change, increasing or decreasing trends, or the duration of a specific temperature (e.g., high-temperature duration), but this disclosure is not limited thereto. For example, when the temperature change rate above a reference value shows a continuously increasing trend (or when the temperature above a threshold is maintained for a predetermined time), the control unit 210 can estimate that the liquid 311 has been depleted. As another example, when the temperature increases at a rate of temperature change above a reference value for a period of time and then shows a decreasing trend (or when the temperature above a threshold does not last for a predetermined time), the control unit 210 can estimate that the liquid 311 has not been depleted. This is because the situation where the high temperature does not last for a predetermined time is highly likely to be a temporary liquid transfer failure.

[0114] Furthermore, in some embodiments, the control unit 210 can also estimate the degree of liquid consumption 311 based on the user's inhalation information. This inhalation information may include, for example, the number of inhalations, inhalation intensity, and inhalation length, but this disclosure is not limited to these. More specifically, the control unit 210 can predict the amount of liquid 311 used based on the inhalation information, and further estimate the degree of liquid consumption by taking the predicted usage into account. For example, the stronger the inhalation intensity, the longer the inhalation length, or the more inhalations, the higher the predicted liquid consumption 311 usage. Moreover, when the difference between the capacity of the cartridge 10 and the predicted usage is above a reference value, even if the measured temperature or temperature change rate of the vibrating member 360 is above a threshold, the control unit 210 can estimate that the liquid 311 has not been depleted. In this case, the control unit 210 can determine that an abnormally high temperature phenomenon has occurred in the vibrating member 360 due to other reasons (e.g., poor bonding state of the cartridge 10), and provide a notification message about the abnormally high temperature phenomenon in a form recognizable to the user. The user-recognizable forms can include all forms that are visually (e.g., displayed on a monitor, LED flashing, etc.), auditorily (e.g., sound, sound effects, etc.), or tactilely (e.g., vibration, etc.).

[0115] Furthermore, in some embodiments, the control unit 210 can control the operation of the vibration member 360 based on the measured temperature or temperature change rate of the vibration member 360. For example, the control unit 210 can stop the operation of the vibration member 360 in response to a determination that the measured temperature or temperature change rate exceeds a threshold. In this case, damage to the vibration member 360 due to high temperature can be prevented in advance.

[0116] In some embodiments, the control unit 210 can control the operation of the vibrating member 360 based on the temperature change pattern of the vibrating member 360. For example, when the temperature change rate above a reference value shows a continuous increasing trend (or when the temperature above a threshold value is maintained for a predetermined time), the control unit 210 can stop the operation of the vibrating member 360. This is because, in this case, there is a high probability that the liquid 311 has been depleted, and if the vibrating member 360 continues to operate, it may be damaged. As another example, when the temperature rises at a rate above a reference value for a period of time and then shows a decreasing trend (or when the temperature above a threshold value is not maintained for a predetermined time), the control unit 210 can maintain the operation of the vibrating member 360 as is. This is because this situation is highly likely to be a temporary liquid transfer failure, and when the liquid is successfully transferred again, the temperature of the vibrating member 360 will decrease.

[0117] On the other hand, in some embodiments, the control unit 210 can identify the bonding state of the cartridge 10 based on whether the vibration transmission member 340 and the vibration member 360 are in close contact, and can control the operation of the vibration member 360. For example, when it is determined that the vibration transmission member 340 and the vibration member 360 are not in close contact (e.g., the bonding state of the cartridge 10 is poor or it is not installed), the control unit 210 can stop the operation of the vibration member 360. This is because when the vibration member 360 operates without a vibration transmission object, the vibration energy is directly converted into heat energy, causing damage to the vibration member 360. In this embodiment, the control unit 210 can determine whether the cartridge 10 is in close contact and identify the bonding state of the cartridge 10 based on whether there is an electrical connection between the vibration member 360 and the vibration transmission member 340 or by utilizing the piezoelectric phenomenon of the vibration member 360. For this, refer to... Figure 9 and Figure 10 Please provide a detailed explanation.

[0118] At this point, we have referred to Figures 7 to 8 A control method for an ultrasonic-based aerosol generating apparatus 1 according to some embodiments of the present disclosure is described. According to the method, the operation of the vibrating member 360 can be controlled based on temperature monitoring results. For example, when the temperature change rate or the measured temperature exceeds a threshold, the operation of the vibrating member 360 can be stopped. Therefore, changes in the characteristics of the vibrating member 360 or physical damage due to high temperatures can be prevented in advance. At this time, the degree of liquid consumption can be estimated based on the temperature monitoring results of the vibrating member 360. For example, when the temperature change rate exceeds a threshold, liquid depletion can be estimated. Therefore, even without additional components (e.g., sensors) for measuring the remaining liquid volume, the degree of liquid consumption can be accurately determined.

[0119] In the following text, reference will be made to Figure 9 and Figure 10 This invention describes a method for identifying cigarette cartridges according to some embodiments of the present disclosure.

[0120] Figure 9 This is a schematic diagram illustrating the cartridge identification method according to a first embodiment of the present disclosure.

[0121] In this embodiment, the vibration transmission member 340 and the vibration member 360 can be formed of conductors. Furthermore, the vibration transmission member 340 and the vibration member 360 can be electrically connected to the control unit 210, respectively. For example, the vibration transmission member 340 can be configured to be electrically connected to the control unit 210 when the cartridge 10 is combined with the control body 20.

[0122] Therefore, the control unit 210 can determine whether the vibration transmission member 340 and the vibration member 360 are in close contact based on whether there is an electric current between them. Specifically, as shown in the figure, the control unit 210 applies a predetermined test current C to the vibration member 360 and checks whether the applied test current C flows through the vibration member 360 and the vibration transmission member 340 (i.e., whether there is an electric current), thereby determining whether they are in close contact. This is because an electric current is only applied when the vibration member 360 and the vibration transmission member 340 are in close contact.

[0123] Furthermore, when it is determined that the vibration member 360 and the vibration transmission member 340 are in close contact, the control unit 210 can identify that the cartridge 10 is combined with the control body 20. That is, when the cartridge 10 is combined with the control body 20, the control unit 210 can identify the combination state of the cartridge 10 by utilizing the close contact of the two members, namely the vibration transmission member 340 and the vibration member 360.

[0124] Furthermore, when it is determined that the vibrating member 360 and the vibration transmission member 340 have separated after being in contact, the control unit 210 can recognize that the smoke cartridge 10 has been removed from the control body 20. In this case, the control unit 210 can automatically stop the operation of the vibrating member 360. This is because when the vibrating member 360 operates alone without a vibration transmission object, it will generate a large amount of heat, which may damage the expensive vibrating member 360 or cause the control body 20 to heat up, potentially causing burns to the user.

[0125] On the other hand, the control unit 210 can periodically or non-periodically determine whether the two components, namely the vibration transmission component 340 and the vibration component 360, are in contact. For example, the control unit 210 can automatically identify the installation of the cartridge 10 by automatically determining whether the two components, namely the vibration transmission component 340 and the vibration component 360, are in contact according to a predetermined period. As another example, the control unit 210 can monitor the bonding state of the cartridge 10 by periodically determining whether the two components, namely the vibration transmission component 340 and the vibration component 360, are in contact during the operation of the aerosol generating device 1 (e.g., during smoking). As another example, the control unit 210 can identify the bonding state of the cartridge 10 by determining whether the two components, namely the vibration transmission component 340 and the vibration component 360, are in contact when receiving specified user input (e.g., power-on, action request, etc.). Furthermore, if the cartridge 10 is identified as not in a bonded state, the control unit 210 can provide a message notifying the identification result in a user-readable form (e.g., an error message notifying the cartridge of a bonded state).

[0126] in addition, Figure 10 This is a schematic diagram illustrating the cartridge identification method according to a second embodiment of the present disclosure. In the following text, reference will be made to... Figure 10 Please provide an explanation.

[0127] In this embodiment, the vibration member 360 can be implemented based on a piezoelectric element, and the control unit 210 can use the piezoelectric phenomenon of the vibration member 360 to identify the bonding state of the cartridge 10. That is, the control unit 210 can identify the bonding state of the cartridge 10 based on the operating principle of the piezoelectric element, which can convert electrical energy and mechanical energy into each other.

[0128] More specifically, as shown in the figure, when the cartridge 10 is installed in the control body 20, the lower end of the cartridge 10 is in close contact with the vibration member 360, thereby applying pressure P to the vibration member 360. For example, pressure P can be applied when the vibration transmission member 340 is in close contact with the vibration member 360. The vibration transmission member 340 is located near the open lower end of the cartridge 10 and has a downwardly protruding shape. However, the scope of this disclosure is not limited to the above example, and the cartridge 10 may also be designed to apply pressure P to the vibration member 360 from other parts besides the vibration transmission member 340. When pressure P is applied to the vibration member 360, a voltage (i.e., electrical energy) can be generated in the vibration member 360 according to the piezoelectric phenomenon. Therefore, the control unit 210 can identify the engagement state of the cartridge 10 (e.g., whether it is engaged, the degree of engagement, etc.) by measuring the voltage (or electrical energy) generated in the vibration member 360.

[0129] To identify the engagement state of the cartridge 10, the control unit 210 may be equipped with a measuring device 211 for measuring voltage (or power). The measuring device 211 may be implemented as a circuit element such as a voltmeter, or in other ways. As long as it can measure the voltage (or power) generated by the vibrating member 360, the measuring device 211 can be implemented in any manner.

[0130] The control unit 210 can identify that the cartridge 10 is combined with the control body 20 in response to a determination that the voltage measured by the measuring device 211 is above a reference value. The reference value can be a preset fixed value or a variable value that changes according to circumstances. For example, the reference value can be a fixed value experimentally determined through a cartridge installation experiment. Alternatively, the reference value can be a variable value adjusted based on the magnitude of the voltage generated when a previous cartridge was combined (installed). For example, the control unit 210 can update the reference value by increasing or decreasing the experimentally determined voltage value based on the magnitude of the voltage generated when the cartridge is combined. Furthermore, the reference value can be set to a single value or set within a certain range. When the reference value is set within a certain range, the control unit 210 can identify that the cartridge 10 is combined with the control body 20 in response to a determination that the measured voltage falls within the set range.

[0131] Conversely, the control unit 210 may distinguish that the cartridge 10 and the control body 20 are in an unconnected state (or removed state) in response to the determination that the measured voltage is less than the reference value.

[0132] In some embodiments, in addition to the voltage magnitude, the control unit 210 can also identify the engagement state of the cartridge 10 based on the duration of voltage generation. For example, the control unit 210 can determine that the cartridge 10 is in an engaged state only when a voltage above a reference value is continuously generated for a predetermined time or more. In this case, the problem of the control unit 210 incorrectly identifying the engagement state of the cartridge 10 due to voltage generated by temporary contact between a specific object (e.g., a hand, an iron bar, etc.) and the vibrating member 360 can be solved.

[0133] Furthermore, in some embodiments, the control unit 210 can distinguish and identify the type of the cartridge 10 based on the measured voltage magnitude. Specifically, it can be designed such that the pressure applied to the vibration member 360 when the cartridge 10 is installed varies depending on the type of cartridge 10. For example, it can be designed such that the degree to which the vibration transmission member 340 protrudes downward varies depending on the type of cartridge 10. In this case, when the measured voltage is above a first reference value, the control unit 210 can identify the assembled cartridge 10 as a first type of cartridge, and when the measured voltage is a second reference value higher than the first reference value, the control unit 210 can identify the assembled cartridge 10 as a second type of cartridge. According to this embodiment, the control unit 210 can even accurately identify the assembly state and type of the cartridge 10 without the need for an additional cartridge identification sensor.

[0134] At this point, we have referred to Figure 9 and Figure 10 A cartridge identification method according to some embodiments of the present disclosure is described. As described above, the bonding state of the cartridge 10 can be identified by utilizing the piezoelectric phenomenon of the vibrating member 360 or whether it is energized, thus eliminating the need for additional sensors. Therefore, the manufacturing cost of the aerosol generating device 1 can be reduced, and the complexity of the internal structure can be alleviated.

[0135] This has been referred to. Figures 7 to 10 The technical concept described herein can be implemented using computer-readable code in a computer-readable medium. Such a computer-readable medium may be, for example, a removable storage medium (CD, DVD, Blu-ray disc, USB storage device, portable hard disk) or a fixed storage medium (ROM, RAM, computer-defined hard disk). The computer program stored in the aforementioned computer-readable storage medium can be transmitted to other computing devices via networks such as the Internet and installed on those other computing devices, thereby enabling its use on those other computing devices.

[0136] Even though the foregoing description of all components constituting embodiments of this disclosure as combined as a single unit or combined to operate as a single unit is illustrated, the technical concept of this disclosure is not necessarily limited to the above embodiments. That is, within the scope of this disclosure, one or more of these components may be selectively combined to operate as one or more units.

[0137] While embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art will understand that other specific forms can be implemented without altering the technical concept or essential features of the present disclosure. Therefore, it should be understood that the above embodiments are exemplary and non-limiting in all respects. The scope of protection of this disclosure should be determined by the claims, and all technical concepts within the equivalent scope should fall within the scope of the technical concepts defined by this disclosure.

Claims

1. An ultrasonic aerosol-generating device, comprising: a replaceable cartridge for storing a liquid aerosol-forming substrate, and a control body having a control unit and a vibration member, and being combined with the cartridge, the vibration member generating ultrasonic vibrations to vaporize the stored aerosol-forming substrate; the cartridge further comprising a vibration transmission member, the vibration transmission member transmitting the generated ultrasonic vibrations to the stored aerosol-forming substrate, the vibration transmission member and the vibration member being in close contact with each other when the cartridge is combined with the control body, the control unit determining whether the vibration member and the vibration transmission member are in close contact, and controlling the operation of the vibration member according to the determination result, and the control unit monitoring the temperature of the vibration member, and stopping the operation of the vibration member in a case where the temperature change rate of the vibration member is above a threshold value or the temperature of the vibration member is continuously increasing at a temperature change rate above a reference value.

2. The ultrasonic aerosol-generating device according to claim 1, wherein: the control unit estimates the degree of consumption of the stored aerosol-forming substrate according to the temperature change rate of the vibration member.

3. The ultrasonic aerosol-generating device according to claim 1, wherein: the vibration member and the vibration transmission member are made of a conductor, the control unit determines whether the vibration member and the vibration transmission member are in close contact according to whether electricity is supplied between the vibration member and the vibration transmission member.

4. The ultrasonic aerosol-generating device according to claim 1, wherein: the vibration member is implemented based on a piezoelectric element, the control unit determines whether the vibration member and the vibration transmission member are in close contact according to a measurement result of a voltage generated by the vibration member. ​

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