Aerosol-generating device

Abstract

The present disclosure provides an aerosol generating device having a differential temperature heating function and an aerosol generating article suitable therefor. The aerosol generating device according to some embodiments of the present disclosure can include a housing forming an accommodation space for accommodating an aerosol generating article, and a heater portion generating an aerosol by heating the aerosol generating article accommodated in the accommodation space. The heater portion can include a first heating portion heating a first portion of the aerosol generating article at a first distance, and a second heating portion heating a second portion of the aerosol generating article at a second distance farther than the first distance.

Description

[0001] This application is a divisional application of Chinese patent application No. 202280006053.7, filed on March 25, 2022, entitled "Aerosol generating apparatus with differential temperature heating function and aerosol generating article applicable thereto". Technical Field

[0002] This disclosure relates to an aerosol generating apparatus with differential heating function and an aerosol generating article suitable thereto. More specifically, this disclosure relates to an aerosol generating apparatus and an aerosol generating article suitable for the apparatus, the aerosol generating apparatus being able to provide improved smoke quality by differentially heating various parts of the aerosol generating article. Background Technology

[0003] In recent years, the demand for alternatives to overcome the shortcomings of existing cigarettes has been increasing. For example, there is a growing demand for aerosol generating devices that generate aerosols by electrically heating cigarettes (e.g., cigarette-based electronic cigarettes), and therefore, research on electrically heated aerosol generating devices is actively underway.

[0004] On the other hand, one of the important factors affecting the quality of smoking for users is the heating temperature of the aerosol generator. This is because when the heating temperature is too low, the smoking sensation becomes poor, while when the heating temperature is too high, the smoking sensation becomes excessive, and the sensation disappears in the latter half of the smoke. Therefore, in order to provide users with a further improved smoking quality, it is necessary to appropriately control the heating temperature of the aerosol generator.

[0005] Furthermore, when different parts of a cigarette contain substances with different apparent temperatures, differential heating of those parts may have a positive effect on improving the smoking experience. This is because when all parts of a cigarette are heated to the same temperature, substances contained in specific parts of the cigarette may appear too low or too high. Summary of the Invention

[0006] Technical issues The technical problem to be solved by some embodiments of this disclosure is to provide an aerosol generating device with differential temperature heating function.

[0007] Another technical problem to be solved by some embodiments of this disclosure is to provide an aerosol-generating article applicable to an aerosol-generating apparatus with differential heating function.

[0008] 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.

[0009] Solution to the problem To address the aforementioned technical problems, an aerosol generating apparatus according to some embodiments of this disclosure may include: a housing forming a receiving space for accommodating an aerosol generating article, and a heater section for generating aerosols by heating the aerosol generating article contained in the receiving space; the heater section may include: a first heating section for heating a first portion of the aerosol generating article, and a second heating section for heating a second portion of the aerosol generating article. In this case, at least one opening may be formed in the second heating section.

[0010] In some embodiments, the heater section may further include a coil section for inductive heating of the first heating section and the second heating section.

[0011] In some embodiments, the first part may be a first segment of the aerosol-generating article, the second part may be a second segment located downstream of the first segment, the first segment may contain an aerosol forming agent, and the second segment may contain a nicotine generating matrix.

[0012] In some embodiments, the length of the first heating part may be shorter than the length of the second heating part.

[0013] In some embodiments, the difference in heat capacity between the first heating element and the second heating element may be less than 10% of the heat capacity of the first heating element.

[0014] In some embodiments, the opening may be formed longitudinally on the second heating portion.

[0015] In some embodiments, the inner diameter of the first heating part may be smaller than the inner diameter of the second heating part.

[0016] The effects of the invention According to some embodiments of the present disclosure described above, an aerosol generating device with differential heating function can be provided. The provided aerosol generating device can improve the smoking quality by differentially heating a first part and a second part of the aerosol generating article. For example, when the aerosol generating article contained in the device includes a first section containing an aerosol forming agent and a second section containing a nicotine generating matrix, in the provided aerosol generating device, the first section, which exhibits a higher material temperature, is heated more intensely than the second section. In this case, since aerosols are successfully formed in the first section and an appropriate amount of nicotine is continuously present in the second section, a continuous smoking sensation and abundant vaporization can be provided to the user. That is, a high-quality smoking experience can be provided to the user.

[0017] 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

[0018] Figure 1 A schematic diagram of an aerosol generating apparatus according to some embodiments of the present disclosure is shown for illustrative purposes.

[0019] Figure 2 and Figure 3 A schematic diagram of an aerosol generating apparatus according to some other embodiments of the present disclosure is shown for illustrative purposes.

[0020] Figure 4 The schematic diagram illustrates aerosol-generated articles according to some embodiments of the present disclosure.

[0021] Figures 5 to 7 This is a schematic diagram illustrating the differential temperature heating structure and principle of the heater section according to the first embodiment of this disclosure.

[0022] Figure 8 This is a schematic diagram illustrating the location of the opening of the heater section according to the first embodiment of the present disclosure.

[0023] Figure 9 and Figure 10 This is a schematic diagram illustrating the arrangement of the openings in the heater section according to the first embodiment of the present disclosure.

[0024] Figure 11 This is a schematic diagram illustrating a method for reducing the heat capacity difference between heating elements in a heater section according to a first embodiment of the present disclosure.

[0025] Figure 12 and Figure 13 This is a schematic diagram illustrating the differential temperature heating structure and principle of the heater section according to the second embodiment of this disclosure.

[0026] Figure 14 This is a schematic diagram illustrating a method for reducing the heat capacity difference between heating elements in a heater section according to a second embodiment of the present disclosure.

[0027] Figure 15 This is a schematic diagram illustrating the differential temperature heating structure and principle of the heater section according to the third embodiment of this disclosure.

[0028] Figure 16 This is a schematic diagram illustrating the differential temperature heating structure and principle of the heater section according to the fourth embodiment of this disclosure.

[0029] Figure 17 This is a schematic diagram illustrating the differential temperature heating structure and principle of the heater section according to the fifth embodiment of this disclosure. Detailed Implementation

[0030] 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. These embodiments are only intended to ensure that this disclosure is fully disclosed so that those skilled in the art to which this disclosure pertains can fully understand the scope of this disclosure. The technical concept of this disclosure is defined by the scope of the claims of this disclosure.

[0031] 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 process 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.

[0032] Unless otherwise specified, all terms (including technical and scientific terms) used in this specification are to be understood in a manner commonly understood by one of ordinary skill in the art to which this disclosure pertains. Furthermore, commonly used terms defined in dictionaries will not be interpreted unreasonably or excessively 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, a single-type noun may also include multiple types.

[0033] Furthermore, in describing the components of this disclosure, terms such as first, second, A, B, (a), (b) 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 these 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.

[0034] 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.

[0035] Before describing the various embodiments of this disclosure, some terms used in the following embodiments will be clarified.

[0036] In the following embodiments, "aerosol forming agent" can refer to a material that facilitates the formation of aerosols. Examples of aerosol forming agents include, but are not limited to, glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. In the art, aerosol forming agent may be used interchangeably with terms such as humectant and wetting agent.

[0037] In the following embodiments, "aerosol forming matrix" can refer to a material capable of forming aerosols. Aerosols may include volatile compounds. The aerosol forming matrix may be solid or liquid.

[0038] For example, a solid aerosol forming matrix may include solid materials based on tobacco raw materials, such as reconstituted tobacco, pipe tobacco, reconstituted tobacco, etc. A liquid aerosol forming matrix may 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. The aerosol forming matrix may also include an aerosol forming agent to stably form an aerosol.

[0039] In the following embodiments, "aerosol generating device" can refer to an apparatus that generates aerosols using an aerosol forming matrix to generate aerosols that can be directly inhaled into a user's lungs through their mouth. For some examples of aerosol generating devices, please refer to... Figures 1 to 3 .

[0040] In the following embodiments, "aerosol-generating article" can refer to an article capable of generating aerosols. An aerosol-generating article may comprise an aerosol-forming matrix. Cigarettes can be cited as a representative example of an aerosol-generating article, but the scope of this disclosure is not limited to this example.

[0041] In the following embodiments, "upstream" or "upstream direction" can refer to a direction away from the user's (smoker's) mouth, while "downstream" or "downstream direction" can refer to a direction closer to the user's mouth. The terms "upstream" and "downstream" can be used to describe the relative positions of elements constituting an aerosol-generating article. For example, in Figure 4 In the illustrated aerosol generating article 2, the aerosol forming matrix portion 21 is located upstream of or in the upstream direction of the filter nozzle portion 22, while the filter nozzle portion 22 is located downstream of or in the downstream direction of the aerosol forming matrix portion 21.

[0042] 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.

[0043] In the following embodiments, "longitudinal direction" may refer to the direction corresponding to the longitudinal axis of the aerosol-generated article.

[0044] In the following, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0045] Figure 1 A schematic diagram of an aerosol generating apparatus 1 according to some embodiments of the present disclosure is shown for illustrative purposes. In particular, Figure 1 The accompanying drawings illustrate an example of an aerosol-generating product 2 being contained (inserted) within an aerosol-generating device 1.

[0046] like Figure 1 As shown, the aerosol generating device 1 may include a housing, a heater 13, a battery 11, and a control unit 12. 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. For example, the aerosol generating device 1 may also include an input module (e.g., a button, a touch screen, etc.) for receiving inputs such as instructions from a user, and an output module (e.g., an LED, a display, a vibration motor, etc.) for outputting information such as device status and smoking information. The components of the aerosol generating device 1 will be described below.

[0047] The housing can form the appearance of the aerosol generating device 1. In some embodiments, the housing can form a receiving space for accommodating the aerosol generating article 2. Preferably, the housing can be made of a material capable of protecting the internal components.

[0048] Additionally, the heater unit 13 can heat the aerosol generating article 2 housed in the housing space. Specifically, when the aerosol generating article 2 is housed in the housing space of the aerosol generating device 1, the heater unit 13 heats the aerosol generating article 2 using electricity supplied from the battery 11. The aerosol generating article 2 can generate aerosol when heated, and the generated aerosol can be inhaled through the user's mouth.

[0049] The operating method and / or implementation form of the heater section 13 can be varied.

[0050] For example, the heater section 13 may operate by a resistance heating method. For example, the heater section 13 may include an electrically insulating matrix (e.g., a matrix formed of polyimide) and a conductive track, and may also include a resistance heating element that generates heat when current flows in the conductive track.

[0051] As another example, the heater section 13 can operate using an induction heating method. For example, the heater section 13 may include an induction coil and a heating element (i.e., a susceptor) heated by induction from the induction coil. The susceptor may be located outside or inside the aerosol generating article 2.

[0052] However, the scope of this disclosure is not limited to the above examples. The heater section 13 can operate in any manner as long as it can heat the aerosol-generating article 2 to the desired temperature. The desired temperature can be preset in the aerosol-generating apparatus 1 (e.g., in the case of a pre-stored temperature profile) or can be set by the user to the desired temperature.

[0053] Furthermore, for example, the heater section 13 can be implemented as including a heating element that internally heats the aerosol generating article 2 (hereinafter referred to as the "internal heating element") and a heating element that externally heats the aerosol generating article 2 (hereinafter referred to as the "external heating element"), or a combination thereof. For example, the internal heating element may be in the shape of a tube, needle, or rod and is arranged to penetrate at least a portion of the aerosol generating article 2, and the external heating element may be in the shape of a plate, cylinder, or the like and is arranged to surround at least a portion of the aerosol generating article 2. However, the scope of this disclosure is not limited thereto, and the shape, number, and arrangement of the heating elements can be designed in various ways.

[0054] On the other hand, in various embodiments of this disclosure, the heater section 13 can be configured to perform differential heating on different portions of the aerosol generating article 2. For example, when the apparent temperatures (or optimal heating temperatures) of the substances contained in the first and second portions of the aerosol generating article 2 are different, the heater section 13 can differentially heat the first and second portions according to the apparent temperatures of the substances. This allows for a high-quality smoking experience to be provided to the user. The apparent temperature of the substances can refer to the temperature at which the relevant substances can be consistently and smoothly presented during smoking. To avoid repetition, reference will be made later to... Figure 5 The accompanying drawings will provide a detailed explanation of the differential temperature heating structure and principle of the heater section 13. Furthermore, reference will be made later. Figure 4 An example is provided for aerosol-generated article 2 that is suitable for differential heating.

[0055] Additionally, the battery 11 can supply power for operating the aerosol generating apparatus 1. For example, the battery 11 can supply power so that the heater section 13 can heat the aerosol generating product 2, or it can supply power required for the operation of the control section 12.

[0056] In addition, the battery 11 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.

[0057] Furthermore, the control unit 12 can control the operation of the aerosol generating device 1 as a whole. For example, the control unit 12 can control the operation of the heater unit 13 and the battery 11, as well as the operation of other components included in the aerosol generating device 1. The control unit 12 can control the power supplied by the battery 11, the heating temperature of the heater unit 13, etc. In addition, the control unit 12 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.

[0058] The control unit 12 can be implemented by at least one processor. This processor can be implemented by a plurality of logic 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 12 can also be implemented by other forms of hardware.

[0059] The aerosol generating article 2 can have a structure similar to that of a conventional cigarette. For example, the aerosol generating article 2 can be divided into an aerosol forming matrix portion including an aerosol forming matrix (e.g., an aerosol forming agent, a nicotine generating matrix, etc.) and a filter tip portion containing filter material. At least a portion of the aerosol forming matrix portion is inserted into the interior of the aerosol generating device 1, while the filter tip portion may be exposed to the exterior of the aerosol generating device 1, but is not limited thereto. The user can smoke while holding the filter tip in their mouth.

[0060] In some embodiments, the aerosol-forming matrix portion of the aerosol-generating article 2 may include multiple segments. Furthermore, each segment may include substances with different performance temperatures. For example, the first segment may contain an aerosol-forming agent with a relatively high performance temperature, while the second segment may contain a nicotine-generating matrix with a relatively low performance temperature. By differentially heating each segment, the aforementioned aerosol-generating article 2 can provide a high-quality smoking experience, as will be discussed below. Figure 4 Please provide an explanation.

[0061] In the following text, reference will be made to Figure 2 and Figure 3 Other types of aerosol generating devices 1 will be described. However, for clarity of this disclosure, descriptions that are repeated in the foregoing embodiments will be omitted.

[0062] Figure 2 and Figure 3 This is a schematic diagram illustrating an aerosol generating apparatus 1 according to some other embodiments of the present disclosure.

[0063] like Figure 2 and Figure 3 As shown, the aerosol generating apparatus 1 according to this embodiment may further include a vaporizer 14. Figure 2 The heater section 13 (or aerosol generating product 2) and the vaporizer 14 are arranged side by side in the example. Figure 3 The heater section 13 (or aerosol generating product 2) and the vaporizer 14 are arranged in a row, as illustrated in the example. However, the internal structure of the aerosol generating device 1 is not limited to... Figure 2 and Figure 3 Examples are provided, and the settings of the components can be freely changed.

[0064] exist Figure 2 and Figure 3 In this embodiment, the vaporizer 14 may include: a liquid reservoir for storing a liquid aerosol forming matrix; a wick for absorbing the aerosol forming matrix; and a vaporization element for vaporizing the absorbed aerosol forming matrix to generate an aerosol. However, the scope of this disclosure is not limited thereto, and the vaporizer 14 may be designed to have a structure that does not include a wick.

[0065] The vaporization element can be implemented in various forms, such as a heating element or a vibration element, and can be controlled by the control unit 12. For example, when the vaporization element is implemented as a heating element, the operation of the heating element and the heating temperature can be controlled by the control unit 12.

[0066] The aerosol generated by vaporizer 14 can be inhaled through the aerosol generating article 2 and into the user's mouth. In other words, the aerosol generated by vaporizer 14 can move along the airflow path of the aerosol generating device 1, and the airflow path can be configured such that the generated aerosol is delivered to the user through the aerosol generating article 2.

[0067] For reference, in this art, vaporizer 14 may be used interchangeably with terms such as cartomizer, atomizer, and cartridge.

[0068] At this point, we have referred to Figures 1 to 3 An aerosol generating apparatus 1 according to various embodiments of the present disclosure is illustrated schematically. In the following, reference will be made to... Figure 4 This describes an aerosol-generating article 2 according to some embodiments of the present disclosure.

[0069] Figure 4 A schematic diagram of an aerosol-generating article 2 according to some embodiments of the present disclosure is shown for illustrative purposes.

[0070] like Figure 4 As shown, the aerosol generating article 2 may include an aerosol forming matrix portion 21, a filter tip portion 22, and packaging paper 23. However, due to Figure 4 Only preferred embodiments of this disclosure are shown; therefore, the structure of the aerosol-generating article 2 can be compared with... Figure 4The differences are shown. Furthermore, the aerosol forming matrix portion 21 and the filter portion 22 may each include packaging paper 23.

[0071] As shown in the figure, the aerosol forming matrix portion 21 may include multiple segments (first segment 211, second segment 212). Figure 4 The illustration shows an example with two segments forming the aerosol matrix 21, but the number of segments can be three or more.

[0072] Each segment (first segment 211, second segment 212) may contain substances with different performance temperatures (or optimal heating temperatures). For example, first segment 211 may contain an aerosol-forming agent (e.g., performance temperature of approximately 290 degrees Celsius), and second segment 212, located downstream of first segment 211, may contain a nicotine-generating matrix (e.g., performance temperature of approximately 150 degrees Celsius). In this case, the high-temperature aerosol formed in first segment 211 can transfer nicotine components while passing through second segment 212, thereby providing the user with a high-quality smoking experience. However, to ensure a high-quality smoking experience, each segment (second segment 212) needs to be differentially heated according to the performance temperature of the substance. When the first segment 211 is heated according to the material performance temperature of the second segment 212 (e.g., about 150 degrees), the aerosol cannot be formed smoothly. Conversely, when the second segment 212 is heated according to the material performance temperature of the first segment 211 (e.g., about 290 degrees), there may be an excessive smoking sensation in the early stages of smoking (i.e., most of the nicotine components migrate at the beginning of smoking) and a loss of smoking sensation in the later stages of smoking.

[0073] As a more specific example, paragraph 211 may include rolled paper impregnated with an aerosol forming agent. For example, the aerosol forming agent may include at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, this disclosure is not limited thereto.

[0074] Furthermore, for example, the nicotine-generating matrix may include tobacco shreds, tobacco particles, tobacco sheets, tobacco beads, and tobacco granules. Alternatively, the nicotine-generating matrix may include rolled paper impregnated with tobacco extract. When the nicotine-generating matrix is ​​heated, nicotine can be generated from the nicotine-generating matrix (expression), and the nicotine can be transferred to the filter tip 22.

[0075] Additionally, the filter tip 22 can perform a filtering function for aerosols formed in the aerosol forming matrix 21. The filter tip 22 can consist of a single segment or multiple segments (e.g., a first segment 211, a second segment 212). For example, as shown, the filter tip 22 may include a first filter segment 221 and a second filter segment 222, or it may consist of three or more segments.

[0076] The first filtration section 221 can perform a cooling function for aerosols. Therefore, the first filtration section 221 can also be referred to as "cooling section 221".

[0077] The cooling section 221 can be implemented in various forms. For example, the cooling section 221 can be formed from paper and include a hollow cylindrical paper tube or a cellulose acetate tubular filter. As another example, the cooling section 221 can be made of a polymeric material or a biodegradable polymeric material. For example, the polymeric material can be a woven fabric made of polylactic acid (PLA) fibers, but is not limited thereto. As another example, the cooling section 221 can be made into a cellulose acetate filter with multiple perforations. However, the scope of this disclosure is not limited to the above examples, and the cooling section 221 can be implemented in any way as long as it can perform the cooling function on the aerosol.

[0078] Additionally, the second filter section 222 can perform the function of filtering cooled aerosols. For this purpose, the second filter section 222 can contain filter materials such as cellulose acetate fibers or paper. Furthermore, the second filter section 222 can be used as a mouthpiece that comes into contact with the user's mouth. Therefore, the second filter section 222 can also be referred to as "mouthpiece section 222".

[0079] The mouthpiece segment 222 can be implemented in various forms. For example, the mouthpiece segment 222 can be a cellulose acetate filter. However, this disclosure is not limited thereto. Furthermore, the mouthpiece segment 222 can be, for example, a cylindrical rod or a tubular rod that includes a hollow interior. In addition, the mouthpiece segment 222 can be an embedded rod.

[0080] Furthermore, the mouthpiece segment 222 may include at least one capsule (not shown in the figure). The capsule (not shown in the figure) may function to generate a fragrance or to generate an aerosol. For example, the capsule (not shown in the figure) may have a structure in which a liquid containing a fragrance is encapsulated by a membrane. The capsule (not shown in the figure) may be spherical or cylindrical, but is not limited thereto.

[0081] Additionally, the packaging paper 23 may wrap at least a portion of the aerosol-generating article 2. For example, the packaging paper 23 may include a first packaging paper surrounding the aerosol-forming matrix portion 21 and a second packaging paper surrounding the filter tip portion 22. Furthermore, the packaging paper 23 may also include a third packaging paper surrounding both the aerosol-forming matrix portion 21 and the filter tip portion 22. The third packaging paper can typically be used as tip paper. At least one of the first to third packaging papers may be a biodegradable roll. When a biodegradable roll is used, the aerosol-generating article 2 is rapidly decomposed by microorganisms, thereby reducing environmental pollution.

[0082] At this point, we have already referred to Figure 4 The aerosol generating article 2 according to some embodiments of the present disclosure has been described. Hereinafter, various embodiments of the heater section 13 capable of providing a high-quality smoking experience by differential heating of the aerosol generating article 2 as described above will be described. Furthermore, for ease of understanding, it will be assumed below that the heater section 13 includes two heating sections that operate in an induction heating manner and heat different parts of the aerosol generating article 2, and that the aerosol generating article 2 has, as... Figure 4 The illustrated structure, with the first segment 211 containing an aerosol forming agent and the second segment 212 containing a nicotine-generating matrix, is further described under the above assumptions. However, the scope of this disclosure is not limited to the examples listed above.

[0083] First, refer to Figures 5 to 11 The heater section 13 according to the first embodiment of this disclosure is described. In particular, for ease of understanding, Figures 7 to 11 The heating elements (first heating element 1321, second heating element 1322) are shown in planar form. Additionally, Figure 7 The accompanying drawings illustrate the state in which the aerosol generating article 2 is contained (inserted) in the device 1. For ease of explanation, a filter tip portion 22 consisting of a single segment is shown.

[0084] Figures 5 to 7 This is a schematic diagram illustrating the differential heating structure and principle of the heater section 13 according to the first embodiment of this disclosure.

[0085] like Figures 5 to 7 As shown, this embodiment relates to a heater section 13 that performs differential heating by utilizing an opening 133 formed in the heating section (first heating section 1321, second heating section 1322).

[0086] Specifically, the heater section 13 according to this embodiment may include an inductor 131 and a heating element 132, the heating element 132 being inductively heated by the inductor 131. However, Figure 5 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 5 Other general components besides those shown. The components of heater section 13 will be described below.

[0087] The sensor 131 can perform inductive heating of the heating element 132. The sensor 131 may include one or more coil portions (a first coil portion 1311, a second coil portion 1312). For example, the sensor 131 may include: a first coil portion 1311 for inductively heating a first heating element 1321; and a second coil portion 1312 for inductively heating a second heating element 1322. Of course, depending on the situation, the sensor 131 may also include a third coil portion (not shown) for inductively heating a third heating element (not shown in the figure).

[0088] In some embodiments, the first coil section 1311 and the second coil section 1312 can be independently controlled by the control unit 12. For example, the first coil section 1311 and the second coil section 1312 are configured as separate coils, so that the intensity, frequency, etc. of the alternating current (electricity) supplied to the first coil section 1311 and the second coil section 1312 can be independently controlled by the control unit 12. In this case, the corresponding heating sections (first heating section 1321, second heating section 1322) can be independently controlled by the first coil section 1311 and the second coil section 1312 (for example, the heating temperature of the heating sections (first heating section 1321, second heating section 1322) can be independently controlled by the power supply intensity), thereby improving control accuracy and flexibility.

[0089] In some other embodiments, the first coil section 1311 and the second coil section 1312 can be controlled simultaneously by the control unit 12. For example, the first coil section 1311 and the second coil section 1312 can be composed of a single coil, thereby being controlled simultaneously by the control unit 12. In this case, the circuit configuration between the control unit 12 and the coil sections (first coil section 1311 and second coil section 1312) can be simplified.

[0090] Furthermore, the heating element 132 can perform the function of heating the aerosol generating article 2. That is, the heating element 132 can be heated by sensing the heating of the sensor 131, thereby heating the aerosol generating article 2. Specifically, the heating element 132 can act as a heat sensor and can include multiple heating sections (first heating section 1321, second heating section 1322). In this case, the first heating section 1321 can heat the first segment 211 of the aerosol generating article 2, and the second heating section 1322 can heat the second segment 212 of the aerosol generating article 2. However, depending on the situation, the heating object of each heating section (first heating section 1321, second heating section 1322) may not correspond to the segments (first segment 211, second segment 212) constituting the aerosol generating article 2. In other words, regardless of the segment structure of the aerosol generating article 2, the first heating section 1321 can heat the first part of the aerosol generating article 2, while the second heating section 1322 can heat the second part of the aerosol generating article 2.

[0091] In some embodiments, such as Figure 5 As shown, each heating element (first heating element 1321, second heating element 1322) can be implemented as a physically distinct heating element. In other words, the first heating element 1321 can be implemented as a first heating element, while the second heating element 1322 can be implemented as a second heating element different from the first heating element.

[0092] In some other embodiments, such as Figure 6 As shown, multiple heating elements (first heating element 1321 and second heating element 1322) can be implemented as a physically integrated heating element. In other words, the first heating element 1321 can constitute part of a specific heating element, while the second heating element 1322 can constitute another part of a specific heating element.

[0093] like Figure 5 As shown, at least one opening 133 may be formed in the second heating section 1322 (when the second segment 212 is heated more weakly). Alternatively, the proportion of the opening 133 in the second heating section 1322 may be greater than that in the first heating section 1321. For example, more openings 133 may be formed in the second heating section 1322, or openings 133 with larger dimensions may be formed.

[0094] In this configuration, since the heating area of ​​the second heating section 1322 is smaller than that of the first heating section 1321, the second segment 212 is heated relatively weakly (at a low temperature), while the first segment 211 can be heated relatively strongly (at a high temperature). Furthermore, in this configuration, an aerosol is successfully formed in the first segment 211 containing the aerosol-forming agent, and an appropriate amount of nicotine is continuously transferred (expressed) in the second segment 211 containing the nicotine-generating matrix, thereby providing the user with a sustained smoking sensation and a rich vapor production. In other words, a high-quality smoking experience can be provided to the user.

[0095] The number, shape, size, position, and arrangement of the openings 133 can be designed in various ways.

[0096] For example, the shape of the opening 133 can be triangular, quadrilateral (groove), circular, etc., but is not limited to these.

[0097] Furthermore, for example, the opening 133 may be formed at a position corresponding to the downstream end portion of the second segment 212. As a more specific example, such as... Figure 8 As shown, an opening 133 can be formed on the second heating section 1323, such that a heating restriction region 24 (i.e., a relatively less heated area) is formed in the downstream end portion of the second section 212 along the transverse direction (i.e., the vertical direction of the longitudinal direction). In this case, a filtering effect on the aerosol can be produced, thus providing the user with a novel smoking experience. Here, filtering can include not only the situation where some components contained in the aerosol are filtered, but also the situation where other components are also included in the aerosol. That is, filtering can cover all situations where the components in the aerosol change. Specifically, some components in the aerosol can be filtered while passing through the heating restriction region 24, and some components contained in the heating restriction region 24 can be further contained in the aerosol. Therefore, the aerosol emitted to the outside of the aerosol generating article 2 may have a different composition than the initially generated aerosol, and thus may exhibit a different flavor than when the entire second section 212 is heated.

[0098] Furthermore, for example, one or more openings 133 may be formed in the transverse direction (i.e., the vertical direction of the longitudinal direction). As a more specific example, such as Figure 9As shown, multiple openings (first opening 133-1, second opening 133-2, and third opening 133-3) can be formed laterally on the second heating section 1322 and spaced apart from each other. The spacing between the first opening 133-1 and the second opening 133-2, and between the second opening 133-2 and the third opening 133-3, can be the same or different. For example, the multiple openings (first opening 133-1, second opening 133-2, and third opening 133-3) can be formed with gradually increasing or decreasing spacing. Furthermore, the dimensions of the openings (first opening 133-1, second opening 133-2, and third opening 133-3) can be the same or different. For example, the multiple openings (first opening 133-1, second opening 133-2, and third opening 133-3) can be formed with gradually increasing or decreasing dimensions.

[0099] Furthermore, for example, one or more openings 133 may be formed along the length direction (longitudinal direction). As a more specific example, such as Figure 10 As shown, multiple openings 133 can be formed longitudinally on the second heating section 1322 and spaced apart from each other. In this case, the problem of damage to the aerosol generating article 2 caused by the openings 133 can be greatly reduced. For example, when the aerosol generating article 2 is inserted or removed, the aerosol generating article 2 may become stuck or jammed in the openings 133. If the openings 133 are formed in the same direction as the insertion direction (or removal direction), this problem can be greatly reduced.

[0100] On the other hand, various designs can be made for the shape, location, material, heat capacity, distance and length to the coils (first coil 1311, second coil 1312) of the heating parts (first heating part 1321, second heating part 1322).

[0101] For example, such as Figure 5 As shown, the heating elements (first heating element 1321, second heating element 1322) can have a cylindrical shape. Alternatively, the heating elements (first heating element 1321, second heating element 1322) can be formed in a shape corresponding to the aerosol generating article 2. In this case, the entire aerosol generating article 2 can be easily heated by the heating elements (first heating element 1321, second heating element 1322).

[0102] Furthermore, for example, the downstream end of the second heating section 1322 located downstream can be configured to coincide with the downstream end of the second segment 212. In other words, the end of the most downstream heating section (e.g., the second heating section 1322) can be configured to coincide with the downstream end of the aerosol forming matrix section 21. In this case, the physical properties of the filter tip section 22 are prevented from changing by the heating of the most downstream heating section (e.g., the second heating section 1322), and the aerosol forming matrix section 21 can be easily heated as a whole.

[0103] Furthermore, for example, the distance from the first heating section 1321 to the first coil section 1311 (hereinafter referred to as the "first distance") can be the same as the distance from the second heating section 1322 to the second coil section 1312 (hereinafter referred to as the "second distance"). For example, when the outer diameters of the two heating sections (first heating section 1321 and second heating section 1322) are the same, the diameters of the two coil sections (first coil section 1311 and second coil section 1312) can be the same. However, in another example, the first distance and the second distance can be different. For example, the first distance can be shorter than the second distance. In this case, the first heating section 1321 is inductively heated more strongly than the second heating section 1322, so the first segment 211 can be heated more strongly (heated at a high temperature) than the second segment 212.

[0104] Furthermore, for example, the first heating element 1321 and the second heating element 1322 can be made of the same material. However, in another example, the first heating element 1321 can be made of a different material than the second heating element 1322. For example, the first heating element 1321 can be made of a material with relatively strong induction heating, while the second heating element 1322 can be made of a material with relatively weak induction heating. In this case, the differential heating of each segment (first segment 211, second segment 212) can be further enhanced, or a certain degree of differential heating can be achieved even without relying on the opening 133.

[0105] Furthermore, for example, the two heating elements (first heating element 1321 and second heating element 1322) may have the same heat capacity. For instance, the first heating element 1321 may be made of the same material as the second heating element 1322 (i.e., the materials have the same specific heat) and may have the same mass. In this case, the two heating elements (first heating element 1321 and second heating element 1322) can heat up at the same rate. Alternatively, in another example, the two heating elements (first heating element 1321 and second heating element 1322) may have different heat capacities.

[0106] In some embodiments, the difference in heat capacity between the two heating elements (first heating element 1321 and second heating element 1322) may be less than 20%, less than 10%, or less than 5% of the heat capacity of the first heating element 1321. Within this range, the two heating elements (first heating element 1321 and second heating element 1322) can heat up at the same rate.

[0107] Furthermore, in some embodiments, to reduce the heat capacity difference between the two heating elements (first heating element 1321, second heating element 1322), the two heating elements (first heating element 1321, second heating element 1322) can be designed with different dimensions. For example, when the specific heat of the materials of the two heating elements (first heating element 1321, second heating element 1322) is the same or similar, to prevent the heat capacity (mass) difference between the two heating elements (first heating element 1321, second heating element 1322) from increasing due to the opening 133, the second heating element 1322 can be designed to be larger than the first heating element 1321. As a more specific example, such as... Figure 11 As shown, the length of the second heating section 1322 can be designed to be longer than the length of the first heating section 1321. Alternatively, the thickness of the second heating section 1322 can be designed to be thicker than the thickness of the first heating section 1321. In this case, the mass difference caused by the opening 133 can be reduced, thereby reducing the heat capacity difference, and the first heating section 1321 and the second heating section 1322 can be heated at the same or similar rates.

[0108] At this point, we have already referred to Figures 5 to 11 The heater section 13 according to the first embodiment of this disclosure has been described. Hereinafter, reference will be made to... Figures 12 to 14 The heater section 13 according to the second embodiment of this disclosure will be described. However, for the sake of clarity of this disclosure, descriptions that are repeated in the foregoing embodiments will be omitted.

[0109] Figure 12 and Figure 13 This is a schematic diagram illustrating the differential heating structure and principle of the heater section 13 according to the second embodiment of this disclosure.

[0110] like Figure 12 and Figure 13 As shown, this embodiment relates to a heater section 13 that performs differential heating of the aerosol generating article 2 based on the distance between the heating section (first heating section 1321, second heating section 1322) and the aerosol generating article 2.

[0111] Specifically, the heater section 13 according to this embodiment may include an inductor 131 and a heating element 132. The inductor 131 may include a first coil section 1311 and a second coil section 1312. The first coil section 1311 is used for inductive heating of the first heating section 1321, and the second coil section 1312 is used for inductive heating of the second heating section 1322.

[0112] Furthermore, each heating element (first heating element 1321, second heating element 1322) can be located at different distances D11 and D12 from the aerosol generating article 2. Specifically, the first heating element 1321 can be located at a distance D11 that is relatively close to the first segment 211, and the second heating element 1322 can be located at a distance D12 that is relatively far from the second segment 212.

[0113] like Figure 12 As shown, by designing the inner diameter of the first heating part 1321 to be smaller than the inner diameter of the second heating part 1322, the aforementioned differences in distances D11 and D12 can be achieved, but the scope of this disclosure is not limited thereto. For example, when the first heating part 1321 and the second heating part 1322 are not cylindrical (e.g., planar), the aforementioned differences in distances D11 and D12 can be achieved by setting each heating part (first heating part 1321, second heating part 1322) at an appropriate distance from the aerosol generating article 2.

[0114] In this configuration, the first heating section 1321, located at a relatively close distance D11, heats the first section 211 more intensely (at a higher temperature) than the second section 212. Furthermore, in this configuration, the amount of vaporization can be increased by forming a large amount of aerosol in the first section 211 containing the aerosol-forming agent, and a suitable amount of nicotine can be continuously transferred (expressed) in the second section 211 containing the nicotine-generating matrix, thereby providing the user with a continuous smoking sensation.

[0115] On the other hand, various designs can be made for the shape, location, material, heat capacity, distance and length to the coils (first coil 1311, second coil 1312) of the heating parts (first heating part 1321, second heating part 1322).

[0116] For example, the distance D21 from the first heating section 1321 to the first coil section 1311 can be the same as the distance D22 from the second heating section 1322 to the second coil section 1312. Therefore, the diameter of the first coil section 1311 can be smaller than the diameter of the second coil section 1312. However, in another example, the distance D21 can be different from the distance D22. For example, the distance D21 can be shorter than the distance D22. In this case, the first heating section 1321 is more strongly inductively heated than the second heating section 1322, so the first segment 211 can be heated more strongly (at a higher temperature) than the second segment 212.

[0117] Furthermore, for example, the two heating elements (first heating element 1321 and second heating element 1322) may have the same heat capacity. For example, the first heating element 1321 and the second heating element 1322 may be made of the same material (i.e., the materials have the same specific heat) and may have the same mass. In this case, the two heating elements (first heating element 1321 and second heating element 1322) can heat up at the same rate. Furthermore, in another example, the two heating elements (first heating element 1321 and second heating element 1322) may have different heat capacities.

[0118] On the other hand, there are many ways to reduce the heat capacity difference between heating parts (first heating part 1321, second heating part 1322) with different inner diameters.

[0119] For example, by designing the length of the first heating element 1321 to be longer than the length of the second heating element 1322, the mass difference between the first heating element 1321 and the second heating element 1322 can be reduced. Furthermore, as the mass difference decreases, the difference in heat capacity between the two heating elements (first heating element 1321 and second heating element 1322) can also be reduced. As a more specific example, such as... Figure 14 As shown, the length of the second heating section 1322 can be designed to be shorter than the length of the first heating section 1321. With the shortened length, the second heating section 1322 can be configured to heat parts other than the downstream end portion of the second segment 212. In this case, a heating restriction region 24 is formed at the downstream end portion of the second segment 212, which can also produce a filtering effect on aerosols.

[0120] For example, by designing the thickness of the first heating element 1321 to be greater than the thickness of the second heating element 1322, the mass difference between the first heating element 1321 and the second heating element 1322 can be reduced. In addition, as the mass difference is reduced, the heat capacity difference between the two heating elements (first heating element 1321 and second heating element 1322) can also be reduced.

[0121] At this point, we have already referred to Figures 12 to 14The heater section 13 according to the second embodiment of this disclosure has been described. Hereinafter, reference will be made to... Figure 15 The differential temperature heating structure and principle of the heater section 13 according to the third embodiment of this disclosure will be explained.

[0122] like Figure 15 As shown, this embodiment relates to a heater section 13 that performs differential heating based on the distance between a coil section (e.g., a first coil section 1311) and a heating section (e.g., a first heating section 1321).

[0123] Specifically, the heater section 13 according to this embodiment may include multiple heating sections (first heating section 1321, second heating section 1322) and multiple coil sections (first coil section 1311, second coil section 1312) located at different distances from each heating section (first heating section 1321, second heating section 1322). For example, the heater section 13 may include: a first coil section 1311 located at a distance D31 relatively close to the first heating section 1321; and a second coil section 1312 located at a distance D32 relatively far from the second heating section 1322. As a more specific example, the heater section 13 may include multiple heating sections (first heating section 1321, second heating section 1322) having the same or similar inner diameter, a first coil section 1311 having a relatively small diameter, and a second coil section 1312 having a relatively large diameter.

[0124] In this case, the first heating part 1321, which is located at a distance D31 relatively close to the first heating part 1321, is more strongly inductively heated than the second heating part 1322. Therefore, the first segment 211 can be heated more strongly (heated to a high temperature) than the second segment 212.

[0125] At this point, we have already referred to Figure 15 The heater section 13 according to the third embodiment of this disclosure has been described. In the following text, reference will be made to... Figure 16 The differential temperature heating structure and principle of the heater section 13 according to the fourth embodiment of this disclosure will be explained.

[0126] like Figure 16 As shown, this embodiment relates to a heater section 13 that performs differential heating based on the difference in heat capacity between the heating sections (first heating section 1321 and second heating section 1322).

[0127] Specifically, the heater section 13 according to this embodiment may include multiple heating sections (first heating section 1321, second heating section 1322) with different heat capacities, and coil sections (first coil section 1311, second coil section 1312) for induction heating of each heating section (first heating section 1321, second heating section 1322). For example, the heater section 13 may include a first heating section 1321 with a relatively small mass and a second heating section 1322 with a relatively large mass. In this case, the specific heat of the materials of the first heating section 1321 and the second heating section 1322 may be the same or similar, but is not limited thereto.

[0128] In this case, induction heating is performed through the coil section (first coil section 1311, second coil section 1312), so the heating rate of the first heating section 1321 is faster than the heating rate of the second heating section 1322. As a result, the first segment 211 can be heated to a higher temperature than the second segment 212.

[0129] At this point, we have already referred to Figure 16 The heater section 13 according to the fourth embodiment of this disclosure has been described. Hereinafter, reference will be made to... Figure 17 The differential temperature heating structure and principle of the heater section 13 according to the fifth embodiment of this disclosure will be explained.

[0130] like Figure 17 As shown, this embodiment relates to a heater section 13 that performs differential heating based on the number of windings of a coil section (e.g., a first coil section 1311).

[0131] Specifically, the heater section 13 according to this embodiment may include: a first coil section 1311 with a relatively large number of windings; a second coil section 1312 with a relatively small number of windings; and heating sections (first heating section 1321 and second heating section 1322) that perform induction heating through the respective coil sections (first coil section 1311 and second coil section 1312). In this case, to utilize the winding space more effectively, the coil sections (first coil section 1311 and second coil section 1312) may have multiple winding layers. For example, as shown in the figure, the first coil section 1311 may have multiple winding layers. Alternatively, both coils (first coil section 1311 and second coil section 1312) may have multiple winding layers, and the number of winding layers in the first coil section 1311 may be greater than the number of winding layers in the second coil section 1312.

[0132] In this case, the first heating section 1321 is more strongly inductively heated by the first coil section 1311 with a relatively large number of winding layers compared to the second heating section 1322, so the first section 211 can be heated more strongly (heated at high temperature) than the second section 212.

[0133] At this point, we have already referred to Figure 17The heater section 13 according to the fifth embodiment of this disclosure is described.

[0134] At this point, we have already referred to Figures 5 to 17 Various embodiments of the heater section 13 with differential temperature heating function have been described. Although the various embodiments are described differently, this is only for ease of understanding, and the above embodiments can be combined in various forms. For example, the heater section 13 may be configured to include a first heating section 1321, a second heating section 1322, and coil sections (first coil section 1311, second coil section 1312), wherein the second heating section 1322 has at least one opening 133 and has an inner diameter larger than the inner diameter of the first heating section 1321, and the coil sections (first coil section 1311, second coil section 1312) are used for inductive heating of each heating section (first heating section 1321, second heating section 1322) (a combination of the first embodiment and the second embodiment).

[0135] Furthermore, up to this point, it has been assumed that the heater section 13 operates using an induction heating method. However, according to some other embodiments of this disclosure, the heater section 13 can operate using a resistance heating method. In this case, the heater section 13 may consist only of a resistance heating element 132 without including an inductor 131, and the heating element 132 may be configured to include multiple heating sections (e.g., a first heating section 1321, a second heating section 1322) that heat different parts of the aerosol generating article 2 (e.g., a first segment 211, a second segment 212). Furthermore, for example, the multiple heating sections (e.g., the first heating section 1321, the second heating section 1322) can differentially heat different parts of the aerosol generating article 2 based on the distance between them and the aerosol generating article 2, the opening 133, etc.

[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 the purpose 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 interpretations of the technical spirit within the equivalent scope should fall within the scope of the technical concept defined by this disclosure.

Claims

1. An aerosol generating device, characterized in that, include: The outer shell forms a containment space for accommodating the aerosol-generated articles, and The heater section generates aerosols by heating the aerosol generating article contained in the aforementioned containment space. The aforementioned heater section includes: The first heating section heats the first part of the aerosol-generated article at a first distance. The second heating section heats the second part of the aerosol-generated article at a second distance, which is farther than the first distance.

2. The aerosol generating apparatus according to claim 1, characterized in that, The heater section further includes an inductor for sensing and heating the first heating section and the second heating section.

3. The aerosol generating apparatus according to claim 2, characterized in that, The aforementioned sensor includes a first coil portion corresponding to the first heating portion and a second coil portion corresponding to the second heating portion. The number of winding layers in the first coil section is greater than the number of winding layers in the second coil section.

4. The aerosol generating apparatus according to claim 1, characterized in that, The first part above is the first paragraph of the aforementioned aerosol-generating product. The second part mentioned above is the second segment located downstream of the first segment mentioned above. The first paragraph above includes aerosol forming agents. The second paragraph above contains the nicotine-generating matrix.

5. The aerosol generating apparatus according to claim 4, characterized in that, The second heating section is configured to heat the remaining portion other than the downstream end portion of the second section.

6. The aerosol generating apparatus according to claim 1, characterized in that, The inner diameter of the first heating part is smaller than the inner diameter of the second heating part.

7. The aerosol generating apparatus according to claim 6, characterized in that, The aforementioned heater section also includes an inductor. The aforementioned sensors include: The first coil section is used for induction heating of the aforementioned first heating section. The second coil section is used for induction heating of the aforementioned second heating section. The diameter of the first coil section is smaller than the diameter of the second coil section.

8. The aerosol generating apparatus according to claim 6, characterized in that, The length of the first heating section is greater than the length of the second heating section.

9. The aerosol generating apparatus according to claim 6, characterized in that, The thickness of the first heating part is greater than the thickness of the second heating part.

10. The aerosol generating apparatus according to claim 1, characterized in that, The difference in heat capacity between the first heating section and the second heating section is less than 10% of the heat capacity of the first heating section.

11. The aerosol generating apparatus according to claim 1, characterized in that, The second heating section described above has at least one opening.

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