Aerosol generating device and method of operation thereof

Abstract

To provide an aerosol generating device capable of automatically heating a heater by recognizing an aerosol generating substance, and an operation method thereof.SOLUTION: An aerosol generating device 1 is configured to determine an insertion and a separation of an aerosol generating substance based on an amount of change in inductance and control a heater to heat the aerosol generating substance based on a result of the determination.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an aerosol generating device and a method of operating the same, and more particularly to an aerosol generating device and a method of operating the same. Aerosol generating device capable of automatically heating a heater by recognizing a generated substrate and its operation It concerns the method. [Background technology]

[0002] Recently, there has been an increasing demand for alternative methods to overcome the shortcomings of conventional cigarettes. For example, a method that does not involve burning a cigarette and generating an aerosol, such as a cigarette or The present invention relates to a method for generating an aerosol by heating an aerosol generating substance in a liquid storage unit. Demand for these products is increasing.

[0003] However, in conventional aerosol generating devices, after inserting a cigarette, the heater needs to be heated. However, since an additional input operation is required, it is inconvenient for the user and takes a long time to take the first puff. There is a problem of time delay. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem to be solved by the present invention is to automatically heat the heater by recognizing the insertion of a cigarette. The present invention provides an aerosol generating device and an operating method thereof.

[0005] Another technical problem that the present invention aims to solve is the extraction of cigarettes from an aerosol generating device. US20130233633A1 - Aerosol generating device capable of automatically stopping heating by recognizing the emission of aerosol and its operation - Google Patents It's about providing a way.

[0006] The technical problem of the present invention is not limited to the above, and further technical problems can be solved by the following examples. The problem can be inferred. [Means for solving the problem]

[0007] In order to solve the above technical problems, an aerosol generating device according to one embodiment of the present invention is Based on the change in inductance, it is possible to detect whether the aerosol generating substrate is inserted into the cavity. and determining whether the aerosol-generating substrate is inserted into the cavity based on the aerosol-generating substrate being inserted into the cavity. heating the substrate; and varying the inductance while the aerosol-generating substrate is heated. determining whether the aerosol-generating substrate has been extracted from the cavity based on the amount of change. and if the aerosol-generating substrate is extracted from the cavity, a preset extraction time. ceasing heating of the aerosol-generating substrate based on the change in inductance; and may include: Effect of the Invention

[0008] The aerosol generating device and the method of operation of the same of the present invention are characterized in that, after cigarette recognition, the user's additional The heater can be automatically turned on without any input action, which increases user convenience. There are advantages.

[0009] In addition, the aerosol generating device and the operating method thereof automatically turn on the heater after recognizing the cigarette. Heating may reduce a user's delay to first puff.

[0010] The aerosol generating device and method of operation also recognize the extraction of a cigarette and control the heater. Heating is automatically stopped, which not only prevents the device from overheating but also reduces power consumption. This has the advantage that

[0011] The advantages and effects of the present invention are not limited to the above-mentioned advantages and include other advantages and effects. The present invention relates to a method and apparatus for manufacturing a semiconductor device, a semiconductor device, and a semiconductor device according to the present invention. will be clearly understood. [Brief description of the drawings]

[0012] [Figure 1] 1 is a diagram showing an example of a cigarette being inserted into an aerosol generating device. [Diagram 2] 1 is a diagram showing an example of a cigarette being inserted into an aerosol generating device. [Diagram 3] FIG. 3 is a drawing showing an example of the cigarette of FIGS. 1 and 2. [Figure 4] FIG. 1 is a block diagram of an aerosol generating device according to an embodiment of the present invention. [Diagram 5] 1 is a flowchart illustrating a method of operating a heater according to an embodiment of the present invention, depending on whether an aerosol-generating substrate is inserted or extracted. [Figure 6] 13 is a flowchart illustrating a method for detecting whether or not an aerosol-generating substrate has been inserted, and a method for operating the heater and output unit when the aerosol-generating substrate has been inserted. [Figure 7] 7 is a graph for explaining FIG. 6. [Figure 8] 10 is a flowchart for explaining a heating method of a heater in a preheating section and a smoking section. [Figure 9] 11 is a graph showing a change in inductance output value due to a rise in heater temperature. [Figure 10] 13 is a diagram illustrating a method for detecting whether an aerosol-generating substrate has been extracted, and a method for operating a heater and an output unit when an aerosol-generating substrate has been extracted. [Figure 11] 11 is a graph for explaining FIG. 10. [Figure 12] 11 is a flow chart illustrating a method for stopping heating of a heater when an aerosol-generating substrate is extracted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] In order to solve the above technical problems, an aerosol generating device according to one embodiment of the present invention is Based on the change in inductance, it is possible to detect whether the aerosol generating substrate is inserted into the cavity. and determining whether the aerosol-generating substrate is inserted into the cavity based on the aerosol-generating substrate being inserted into the cavity. heating the substrate; and varying the inductance while the aerosol-generating substrate is heated. determining whether the aerosol-generating substrate has been extracted from the cavity based on the amount of change. and if the aerosol-generating substrate is extracted from the cavity, a preset extraction time. ceasing heating of the aerosol-generating substrate based on the amount of inductance change. , may be included.

[0014] The step of detecting whether the aerosol-generating substrate is inserted into the cavity may further include detecting the presence or absence of the aerosol-generating substrate in the cavity. activating a substrate detector for detecting the presence or absence of a sol-forming substrate; periodically collecting an inductance output value of the substrate detection unit in an activated state; calculating an amount of change in the inductance based on the inductance output value; When the amount of change in the inductance is equal to or greater than a preset upper critical value, the aerosol generating group and determining that a substance has been inserted into the cavity.

[0015] The step of detecting whether the aerosol-generating substrate is inserted into the cavity may further include detecting the presence or absence of the aerosol-generating substrate in the cavity. When it is determined that the aerosol-forming substrate has been inserted into the cavity, the aerosol-forming substrate is added. The method may further include outputting a trigger signal for heating.

[0016] The step of detecting whether the aerosol-generating substrate is inserted into the cavity may further include detecting the presence or absence of the aerosol-generating substrate in the cavity. The method may further include a step of visually or aurally outputting the insertion status of the sol-forming substrate.

[0017] Also, the step of heating the aerosol-generating substrate may include preheating the aerosol for a preset preheating time. A step of preheating a heater for heating a sol-generating substrate and a preset smoking time after the preheating time. and heating the heater during the heating.

[0018] Also, the step of preheating the heater may include inserting the aerosol-generating substrate into the heater. and starting preheating the heater based on the trigger signal received from the heater. and increasing the temperature to a vaporization temperature at which a sol is produced.

[0019] The step of heating the heater further comprises heating the heater to a temperature of the vaporizer during the smoking time. The temperature can be maintained above 100°C.

[0020] Also, the step of detecting whether the aerosol-generating substrate has been extracted from the cavity may further include and correcting an inductance output value of a substrate detection unit that detects the presence or absence of the aerosol generating substrate. and calculating a change amount of the inductance based on the corrected inductance output value. and if the change in inductance is equal to or less than a preset lower limit critical value, and determining that the aerosol-generating substrate has been extracted from the cavity.

[0021] The step of correcting the output value of the inductance may further include heating the aerosol-generating substrate. The inductance output value of the substrate detection unit is decreased in response to a temperature rise of the heater. Ugh.

[0022] Also, the step of detecting whether the aerosol-generating substrate has been extracted from the cavity may further include The method may further include a step of visually or aurally outputting the extraction status of the aerosol-generating substrate. good.

[0023] Also, the step of ceasing heating of the aerosol-generating substrate may include ceasing heating of the substrate for the extraction time. periodically collecting an inductance output value of a detector; calculating an amount of change in the inductance based on the amount of change in the inductance; ceasing heating of the aerosol-generating substrate if the upper critical value is less than the preset upper critical value; , may be included.

[0024] In order to solve the above technical problem, an aerosol generating device according to another embodiment of the present invention is A cavity for accommodating an aerosol-generating substrate, and heating the aerosol-generating substrate accommodated in the cavity. a heater for heating the aerosol; and an inductance that is variable by inserting and extracting the aerosol-generating substrate. a battery for supplying power to the heater and the substrate detection unit; Based on the amount of change in inductance, it is determined whether the aerosol-generating substrate is inserted or extracted. and controlling the heater to heat the aerosol-generating substrate based on the determined result. The control unit may include a controller.

[0025] The control unit also activates the substrate detection unit while power is not supplied to the heater. The inductance output value of the substrate detection unit is periodically collected, and the inductance output The amount of change in the inductance is calculated based on the value, and the amount of change in the inductance is If the threshold is equal to or greater than a certain upper critical value, it is determined that the aerosol-generating substrate has been inserted into the cavity. It is possible.

[0026] When it is determined that the aerosol-generating substrate has been inserted into the cavity, the control unit In this case, a trigger signal can be output to heat the aerosol-generating substrate.

[0027] The heater starts preheating in response to the trigger signal, and the control unit The heater is preheated for a certain preheating time, so that the temperature of the heater is adjusted to the temperature at which the aerosol is generated. The vaporization temperature can be increased to a temperature at which the vaporization takes place.

[0028] The control unit also controls the temperature of the heater during a preset smoking time after the preheating time. The temperature can be maintained at or above the vaporization temperature.

[0029] The control unit controls the inductance of the substrate detection unit while the heater is heated. and correcting the inductance output value based on the corrected inductance output value. If the change in inductance is less than or equal to a preset lower limit critical value, It can be determined that the aerosol-generating substrate has been extracted from the cavity.

[0030] The control unit controls the inductance of the substrate detection unit in response to a temperature rise of the heater. The inductance output value can be corrected by decreasing the inductance output value.

[0031] The control unit also controls a preset During the extraction time, the inductance output value of the substrate sensing unit is periodically collected, and the inductance A change in the inductance is calculated based on the output value of the inductance. If the change in the amount of ... It is possible.

[0032] The aerosol generating device visually displays the insertion and extraction states of the aerosol generating substrate. The apparatus may further include an output section that outputs visually or audibly.

[0033] As used herein, phrases such as "at least one" and "at least one" modify the entire list of components and For example, "at least one of a, b, and c" does not modify "a" "b", "c", "a and b", "a and c", "b and c", or "a, b and c". It should be understood that both are included.

[0034] An element or layer is "above" another element or layer, When a term is used, it refers to something that is connected to another element. It can be directly connected to or combined with other layers, or it can be combined with a separate combined entity. In contrast, an element may have multiple elements or layers. or layer "directly above," "directly connected to," or "directly joined to" When referring to "an element" or "an element other than an element," it should be understood that there are no intermediate elements. Reference numbers refer to like elements throughout.

[0035] The terms used in the examples are as widely used as possible in the present invention while taking into consideration the functions of the present invention. The terminology used in this specification is generally used in the present invention, but it is not intended to be used in the present invention. The time limit varies depending on the emergence of new technologies. In addition, in certain cases, the applicant may select In some cases, the meaning of the term will be explained in detail in the description of the invention. Therefore, the terms used in the present invention are not merely names of terms, but also have the meanings that the terms have. It must be defined based on taste and the overall context of the present invention.

[0036] Throughout the specification, when a part "comprises" a certain element, it is specifically Unless stated to the contrary, it does not exclude other elements and may further include other elements. In addition, the terms "-part" and "-module" described in the specification " refers to a unit that performs at least one function or operation, which is a hardware embodied in hardware or software, or a combination of hardware and software This is also embodied by:

[0037] Throughout the specification, the term "puff" refers to the inhalation of a particular aerosol by a user. Inhalation means a situation in which a user breathes in through the user's mouth, nose, oral cavity or lungs. do.

[0038] Throughout the specification, the preheating section is defined as a period during which the temperature of each of the first and second heaters is increased. The smoking section is a section in which the user can maintain the temperature of the first heater. The pre-heating section and smoking section refer to the section in which the aerosol is inhaled. It also has the same meaning as interval and smoking time.

[0039] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The present invention will be described in detail to enable those skilled in the art to understand and practice the invention. As such, the embodiments may be practiced in many different forms and should not be construed as limited to the embodiments set forth herein.

[0040] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0041] 1 and 2 are diagrams showing an example in which a cigarette is inserted into an aerosol generating device.

[0042] 1 and 2, the aerosol generating device 1 includes a battery 11, a control unit 12, a heater 13, and a heater 14. The aerosol generating device 1 includes a vaporizer 14. The internal space of the aerosol generating device 1 includes a cigarette 2 can be inserted.

[0043] FIG. 3 illustrates certain components shown in the aerosol generating device 1 depicted in FIGS. 1 and 2. Therefore, in addition to the components shown in Figures 1 and 2, other general components are included in the aerodynamic The sol generating device 1 further includes a component that is a component that is a component of the present invention. Anyone with a good understanding of this will understand.

[0044] In FIG. 1, a battery 11, a control unit 12, a vaporizer 14, and a heater 13 are arranged in a line. FIG. 2 also shows that the evaporator 14 and the heater 13 are arranged in parallel. However, the internal structure of the aerosol generating device 1 is shown in FIG. 2. That is, the design of the aerosol generating device 1 is not limited to that shown in FIG. Therefore, the arrangement of the battery 11, the control unit 12, the heater 13, and the vaporizer 14 is changed. Ugh.

[0045] When the cigarette 2 is inserted into the aerosol generating device 1 through the cavity 15, the aerosol The generator 1 operates the heater 13 and / or the vaporizer 14 to generate an aerosol. The aerosol generated by the heater 13 and / or the vaporizer 14 may be used to vaporize the cigarette. 2 and is transmitted to the user.

[0046] The battery 11 supplies power used for the operation of the aerosol generating device 1. For example, The battery 11 supplies power to the heater 13 or the vaporizer 14 so that the heater 13 or the vaporizer 14 is heated, and controls the The battery 11 can supply the power necessary for the operation of the aerosol unit 12. Supplying the power required for the operation of the display, sensor, motor, etc. provided in the generating device 1 It is possible.

[0047] The control unit 12 controls the overall operation of the aerosol generating device 1. 2 includes not only a battery 11, a heater 13, and a vaporizer 14, but also an aerosol generating device 1 The control unit 12 controls the operation of the other components included in the aerosol generating device 1. Check the state of each component and determine whether the aerosol generating device 1 is in an operable state. It is also possible.

[0048] The control unit 12 includes at least one processor. The processor includes a number of logic gates. The microprocessor and the program executable by the microprocessor are embodied as an array of The present invention may also be embodied in other forms of hardware. It is understood that the present invention can be embodied as a software program by those skilled in the art. If you do, you will understand.

[0049] The heater 13 is also heated by the power supplied from the battery 11. When the cigarette is inserted into the aerosol generating device 1, the heater 13 is located outside the cigarette. Therefore, the heated heater 13 increases the temperature of the aerosol-forming material in the cigarette. can increase.

[0050] The heater 13 may also be an electrically resistive heater. For example, the heater 13 may include a conductive track The heater 13 can be heated by passing a current through the conductive track. However, the heater 13 is not limited to the above example, and may be any type that can heat the device to a desired temperature. Here, the desired temperature may be set in advance in the aerosol generating device 1 without any restriction. The temperature may be preset by the user or may be set to a desired temperature.

[0051] Meanwhile, in another example, the heater 13 is an induction heater. 13 includes a conductive coil for heating the cigarette by induction heating, may include a susceptor heated by an inductive heater.

[0052] For example, the heater 13 may be a tubular heating element, a plate heating element, a needle heating element, or a rod heating element. The cigarette 2 can be heated internally or externally depending on the shape of the heating element. Cut.

[0053] In addition, a plurality of heaters 13 are arranged in the aerosol generating device 1. The heater 13 may be disposed so as to be inserted inside the cigarette 2. In addition, some of the heaters 13 may be disposed outside the cigarette 2. The remaining part may be disposed outside the cigarette 2. The shape of the heater 13 is not limited to the shape shown in FIG. 1 and FIG. 2, and may be made in various shapes. will be done.

[0054] The vaporizer 14 heats the liquid composition to generate an aerosol, and the generated aerosol The vapor generated by the vaporizer 14 can be delivered to the user through the cigarette 2. The generated aerosol moves along an airflow passage of the aerosol generation device 1, and the airflow passage is The aerosol produced by the vaporizer 14 is transmitted through the cigarette to the user. It can also be configured as follows.

[0055] For example, the vaporizer 14 may include a liquid storage portion, a liquid delivery means, and a heating element. For example, but not limited to, the liquid reservoir, the liquid transfer means, and the heating element may be independently The aerosol generating device 1 may include the above-mentioned components as a module.

[0056] The liquid storage portion can store a liquid composition. For example, the liquid composition can be a volatile substance. It can be a liquid containing tobacco-containing substances, including baco flavor components, or a liquid containing non-tobacco substances. The liquid reservoir is also adapted to be attached / detached from / to the vaporizer 14 and to the vaporizer 14. It can also be made as a single unit.

[0057] For example, the liquid composition may contain water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or or a mixture of vitamins. Flavoring agents include menthol, peppermint, spearmint, and Flavoring agents include, but are not limited to, oils, various fruit flavors, etc. The vitamin mixture may also include ingredients that provide the user with a variety of flavors or tastes. Vitamin A, Vitamin B, Vitamin C, and Vitamin E are all mixed together. The liquid composition may contain, but is not limited to, glycerin and propylene glycol. An aerosol forming agent such as glycol may also be included.

[0058] The liquid transfer means can transfer the liquid composition in the liquid reservoir to the heating element. For example, The liquid transfer means may be made of cotton fiber, ceramic fiber, glass fiber, porous ceramic, etc. It can be, but is not limited to, a wick.

[0059] The heating element is an element for heating the liquid composition delivered by the liquid delivery means. For example, the heating element can be a metal hot wire, a metal hot plate, a ceramic heater, etc. The heating element may also be a conductive filament such as a nichrome wire. The heating element may be arranged by a structure wound around the liquid transfer means. and transferring heat to a liquid composition in contact with the heating element to heat the liquid composition. As a result, aerosols can be generated.

[0060] The vaporizer 14 is also called a cartomizer or an atomizer. But not limited to these.

[0061] On the other hand, the aerosol generating device 1 includes a battery 11, a control unit 12, a heater 13, and a vaporizer. The aerosol generating device 1 may further include other components in addition to the sensor 14. For example, the aerosol generating device 1 may include a visual information and / or a motor for outputting tactile information. In addition, the aerosol generating device 1 includes at least one sensor (i.e., a puff detection sensor , a temperature detection sensor, a cigarette insertion detection sensor, etc. The generating device 1 is configured such that even when the cigarette 2 is inserted, external air flows in or the internal gas flows out. It can also be made with structures that can be drained.

[0062] Although not shown in FIGS. 1 and 2, the aerosol generating device 1 is provided with a separate cradle. For example, the cradle may be a cradle for supporting the aerosol generating device 1. The cradle and the aerosol generating device 1 can be connected to each other. In this state, the heater 13 is heated.

[0063] Cigarette 2 also resembles a typical combustible cigarette. may be divided into a first portion containing an aerosol generating material and a second portion containing a filter or the like. Alternatively, the second portion of the cigarette 2 also contains an aerosol-forming material. Aerosol-generating material, either in the form of a capsule or capsules, is inserted into the second portion.

[0064] The first portion is entirely inserted into the aerosol generating device 1, and the second portion is exposed to the outside. Alternatively, only a part of the first part may be inserted into the aerosol generating device 1, and the first part may be inserted into the aerosol generating device 1. The entire first portion and part of the second portion may be inserted. The user may insert the second portion into their mouth. The aerosol can be inhaled. In this case, the aerosol is absorbed by the outside air passing through the first part. The aerosol is generated by passing through the second portion and delivered to the user's mouth. do.

[0065] As an example, the outside air is introduced through at least one air vent formed in the aerosol generating device 1. For example, the air passage formed in the aerosol generating device 1 can be opened and closed. The size of the air passage and / or the amount of atomization can be adjusted by the user. The user can adjust the smoke sensation. The air flows into the cigarette 2 through at least one hole formed on the surface. An example of the cigarette 2 will now be described with reference to FIG.

[0066] FIG. 3 is a drawing showing an example of the cigarette of FIGS.

[0067] The cigarette 3 of FIG. 3 may correspond to the cigarette 2 of FIGS.

[0068] Referring to FIG. 3, the cigarette 3 includes a tobacco rod 31 and a filter rod 32. The first portion, as previously described with reference to Figures 1 and 2, comprises a tobacco rod 31, and the second portion comprises Includes a filter rod 32.

[0069] Depending on the embodiment, the cigarette 3 may further include a front end plug 33. 33 is located on one side of the tobacco rod 31 opposite the filter rod 32. The end plug 33 prevents the tobacco rod 31 from being removed to the outside and holds the tobacco rod 31 in place during smoking. This prevents the liquefied aerosol from flowing into the aerosol generator. Cut.

[0070] The tobacco rod 31 includes an aerosol-forming material. For example, the aerosol-forming material may be a glass Glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diene Ethylene glycol, triethylene glycol, tetraethylene glycol and oleyl The composition may include, but is not limited to, at least one of the following alcohols: The collod 31 may contain other additives such as flavoring agents, humectants, and / or organic acids. The tobacco rod 31 may also contain a flavoring liquid such as menthol or a moisturizing agent. is added by being sprayed onto the tobacco rod 31.

[0071] The tobacco rod 31 can be made in a variety of ways. For example, the tobacco rod 31 can be made from a sheet. It is also produced by the tobacco plant, and by strand. The tobacco sheet 31 may also be made from shredded tobacco. The Bacolod 31 is also wrapped in a thermally conductive material. For example, the thermally conductive material is aluminum foil. As an example, the metal foil may be, but is not limited to, a metal foil that surrounds the tobacco rod 31. The heat conductive material distributes the heat transferred to the tobacco rod 31 evenly and This can improve the thermal conductivity of the tobacco, thereby improving the flavor of the tobacco. The thermally conductive material surrounding the rod 31 is a susceptor heated by an induction heater. In this case, although not shown in the figure, the tobacco rod 31 is removed from the outside. In addition to the surrounding thermally conductive material, an additional susceptor may also be included.

[0072] The filter rod 32 may include a first segment 321 and a second segment 322. The filter rod 32 is also a cellulose acetate filter. There is no limitation on the shape of the filter rod 32. For example, the filter rod 32 may be a cylindrical rod. The filter rod 32 is a tubular rod having a hollow portion. If the filter rod 32 is constructed of multiple segments, the multiple segments At least one of the segments is also fabricated with a different shape.

[0073] The filter rod 32 also includes at least one capsule 34, where: The capsule 34 may perform a flavor generating function and may also perform an aerosol generating function. For example, the capsule 34 may be a structure that encases a liquid containing a flavoring agent with a coating. The capsule 34 may have a spherical or cylindrical shape, but is not limited thereto.

[0074] The length of the front end plug 33 is about 7 mm, the length of the tobacco rod 31 is about 15 mm, and the first cell The length of the first segment 321 is about 12 mm, and the length of the second segment 322 is about 14 mm. These include, but are not limited to:

[0075] The cigarette 3 is also wrapped in at least one wrapper 35. At least one hole is formed through which the outside air flows in or the inside gas flows out. For example, the front end plug 33 is wrapped by the first wrapper 351 and the front end plug 33 is wrapped by the second wrapper 352. The tobacco rod 31 is wrapped by the third wrapper 353, and the first segment 321 is wrapped by the third wrapper 353. The second segment 322 may be wrapped by the fourth wrapper 354. The fifth wrapper 355 allows the entire cigarette 3 to be repackaged.

[0076] In addition, at least one perforation 36 may be formed in the fifth trumpet 355. For example, The perforations 36 may be formed in the area surrounding the tobacco rod 31, but are not limited to such. The perforations 36 allow the heat generated by the heater 13 illustrated in FIGS. 1 and 2 to pass through the tobacco rod. 31.

[0077] On the other hand, the cigarette 3 may further include an electromagnetic inductor. The inductance of the substrate sensing unit (451 in FIG. 4) can be changed by the eddy current. It includes conductors in which eddy currents are induced and magnetic materials that can generate magnetic flux changes. For example, electromagnetic inductors include metallic materials, magnetic ink, magnetic tape, etc. For example, the electromagnetic inductor may be aluminum foil. The conductor may include, without limitation, a material that changes the inductance of the substrate sensing portion 451. . In one embodiment, at least one of the first trumpet 351 to the fifth trumpet 355 One of the trumpets is also formed from electromagnetic dielectric material.

[0078] In another embodiment, the electromagnetic inductor has a first bell 351 to a fifth bell 35 5, while facing the inner surface of at least one of the trumpets, along the circumference of the cigarette 3. The contents of the galette 3 may be covered.

[0079] The location at which the electromagnetic inductor is provided within the cigarette 3 may vary.

[0080] In one embodiment, the electromagnetic inductor may be disposed in an area corresponding to the front end plug 33 . Here, the cigarette 3 is in a state where the front end plug 33 is in the direction toward the aerosol generating device 1. The electromagnetic induction is inserted into the sol generating device 1, so that when the cigarette 3 begins to be inserted, The substrate detection unit 451 can be immediately inserted into the aerosol generation device 1. By detecting the approach of the derivative, the start of insertion of the cigarette 3 can be detected at an early point in time. Cut.

[0081] Also, when the cigarette 3 is separated, the front end plug 33 is the latest to leave the aerosol generating device 1. Since the electromagnetic induction is separated, the substrate detection unit 451 detects the separation of the electromagnetic induction and detects the cigarette lighter. It is possible to detect the complete departure of the third

[0082] In another embodiment, the electromagnetic inductor is located inside the tobacco rod 31 or inside the fifth wrapper 3 55 may surround the tobacco rod 31 in an overlapping state.

[0083] In yet another embodiment, the electromagnetic inductor is located inside the filter rod 32 or in the fifth The wrapper 355 may overlap and surround the filter rod 32 .

[0084] In yet another embodiment, an electromagnetic inductor may be disposed between each segment; or , the electromagnetic inductor is located at the bottom or top end of the cigarette 3 .

[0085] FIG. 4 is an internal block diagram of an aerosol generating device according to an embodiment of the present invention.

[0086] Referring to FIG. 4, the aerosol generating device 1 according to the embodiment of the present invention includes a control unit 410, A battery 420, a first heater 430, a second heater 440, a detection unit 450, an output unit 460, an input The power supply 470 and memory 480 may also be included.

[0087] The detection unit 450 includes a substrate detection unit 451 for detecting an aerosol-generating substrate, and a user's password. A puff detector 453 for detecting a puff and a temperature detector for detecting the temperature of the heaters 430 and 440 The device may include a knowledge unit.

[0088] The control unit 410 controls the battery 420 and the first heater 4 included in the aerosol generation device 1. 30, second heater 440, detection unit 450, output unit 460, input unit 470 and memory 480 can be controlled comprehensively.

[0089] The battery 420 supplies power to the first heater 430 and the second heater 440. The magnitude of the electric power supplied to each of the first heater 430 and the second heater 440 is controlled by the control unit 410. It can be adjusted.

[0090] The first heater 430 heats the first aerosol-generating substrate to generate the first aerosol. When a current is applied to the first heater 430, heat is generated due to the specific resistance. When the first aerosol-generating substrate is brought into contact with (or bonded to) the first heater 430, A sol can be produced.

[0091] The first heater 430 corresponds to the heater 13 in FIG. 1 and FIG. 2. The aerosol-forming substrate is also the cigarette 2 of Figures 1 and 2. First aerosol-forming substrate is also a solid substrate that contains nicotine.

[0092] The second heater 440 heats the second aerosol generating substrate to generate a second aerosol. The second heater 440 can be a heating element provided in the vaporizer 14 of FIG. The second aerosol-generating substrate is also in the liquid storage section of FIG. The second aerosol-forming substrate is a liquid composition comprising an aerosol-forming agent. It is also the base material for the body.

[0093] The second heater 440 heats the second aerosol generating substrate to generate a second aerosol. The second aerosol thus generated passes through the first aerosol generating substrate together with the first aerosol, is communicated to the user.

[0094] The control unit 410 controls the power supplied to the first heater 430 and the second heater 440. The control unit 410 controls the battery 420 to supply the first heater 430 and the second heater The power can be adjusted to the controller 440 .

[0095] The control unit 410 controls the first heater through a pulse width modulation (PWM) method. The power supplied to the first heater 430 and the second heater 440 can be controlled. The control unit 410 may include a pulse width modulation module.

[0096] The control unit 410 determines whether the first aerosol-generating substrate is inserted or extracted, and Based on the result, the power supplied to the first heater 430 and the second heater 440 is controlled. Thus, the first heater 430 and the second heater 440 can be heated.

[0097] In particular, the substrate detection unit 451 detects the inductive coupling by inserting and extracting the first aerosol-generating substrate. For example, the substrate detection unit 451 has at least one inductance The LDC may include an inductance to digital converter (LDC). In the case of a plurality of LDCs, the plurality of LDCs may be arranged to insert the first aerosol-generating substrate at different positions from each other. And the extraction state can be detected.

[0098] When the first aerosol-generating substrate is the cigarette 2 shown in FIG. 1 and FIG. 2, the substrate detection unit 45 1 is disposed in the cavity 15 and is capable of detecting the presence or absence of a cigarette 2. The substrate detector 451 may also be referred to as a cigarette detector.

[0099] The control unit 410 determines the first aerosol concentration based on the amount of change in inductance of the substrate detection unit 451. The control unit 410 can determine whether the inductor generating substrate is inserted or extracted. When the amount of change in the aerosol density is equal to or greater than a preset upper critical value, the first aerosol generating substrate is introduced into the cavity 15. The control unit 410 determines that the inductance change amount is equal to the preset amount. If the lower critical value is less than the lower critical value, it is determined that the first aerosol-generating substrate is extracted from the cavity 15. It is possible.

[0100] When the control unit 410 determines that the first aerosol-generating substrate has been inserted into the cavity 15, 1. A trigger signal for heating the aerosol generating substrate can be output. The trigger signal can also be a pulse width modulated signal. The control unit 4 can start supplying power to the first heater 430 through the signal. 10, when it determines that the first aerosol-generating substrate has been inserted into the cavity 15, it turns on the first heater 4. Preheating of 30 can be started.

[0101] In addition, the control unit 410 controls the first heater 430 to start preheating. Pre-heating of the second heater 440 may be started at a first time point before the pre-heating of the first heater 440 is completed. For example, when the preheating time of the first heater 430 is 30 seconds, the control unit 410 Preheating of the second heater 440 can be started from 27 seconds, which is 3 seconds before the completion of preheating of 30. .

[0102] The control unit 410 determines whether or not to start preheating the second heater 440 based on the preheating time of the first heater 430. The control unit 410 can calculate the start time of the preheating of the first heater 430. The control unit 410 may start preheating the second heater 440 at a predetermined time point before the start of the preheating process. The reason why the first heater 430 and the second heater 440 are not heated at the same time as the gap is entered is that Compared to the first heater 430, which heats a solid substrate such as a galette, the heat absorbed in the wick is This is because the second heater 440 for heating the liquid composition can easily reach a desired preheat temperature.

[0103] The control unit 410 controls the power supplied to the first heater 430 during the preset preheating time. By this, the temperature of the first heater 430 at the time of completion of preheating becomes the vaporization temperature at which the first aerosol is generated. The amount of heat generated can be controlled to be increased up to a maximum.

[0104] In addition, the control unit 410 starts preheating the second heater 440 at the first time point, By controlling the power supplied to the second heater 440 during the first time, At a second point in time after the time has elapsed, the temperature of the second heater 440 is increased to a value at which a second aerosol is generated. It can be controlled to exceed the vaporization temperature.

[0105] In addition, the control unit 410 controls the second heater 4 to turn on during a second time period from the second time point until the end of the preheating period. By controlling the power supplied to the second heater 440, the temperature of the second heater 440 at the time of completion of preheating is is lower than the vaporization temperature at which the second aerosol is generated, or the vaporization temperature of the second aerosol-generating substrate is The temperature can be controlled to be close to the desired temperature.

[0106] The temperature of the second heater 440 is set to a temperature lower than or close to the temperature at which the second aerosol is generated. The reason for preheating the second aerosol generating substrate to 100° C. is that the second aerosol generating substrate, which is provided to increase the amount of atomization, The second aerosol is prevented from being generated regardless of the user's puff, while the This is to heat the second aerosol-generating substrate rapidly in response to the puff.

[0107] In addition, the control unit 410 detects that a puff of the user is detected during a period from the second time point to the second time period. Even if the second heater 440 is turned on, no additional power is supplied to the second heater 440. This is to prevent the coil from carbonizing due to overheating.

[0108] The control unit 410 controls the temperature stored in the memory 480 for a preset smoking time after the pre-heating time. The temperatures of the first heater 430 and the second heater 440 are controlled based on the temperature profile. This can be done.

[0109] When the first heater 430 and the second heater 440 are heated, the control unit 410 Inductance of the substrate detection unit 451 due to a temperature rise of the heater 430 and / or the second heater 440 The control unit 410 can correct the output value of the first heater 430 and the second heater 440. 40, the inductance output of the substrate detection unit 451 corresponds to a temperature rise in any one of the It may decrease the value.

[0110] The control unit 410 controls the first aerosol generating substrate based on the corrected inductance output value. It is possible to detect whether the content is extracted.

[0111] The control unit 410 controls the first air while the first heater 430 and the second heater 440 are heated. When it is determined that the sol-forming substrate has been extracted from the cavity 15, the first heater 430 and the second heater The heating of the substrate detector 451 is not immediately stopped, and the amount of change in inductance of the substrate detector 451 is continuously measured. This is contrary to the user's intention, is extracted from the cavity 15.

[0112] The control unit 410 detects the amount of change in inductance of the substrate detection unit 451 during a preset extraction time. Based on the result, the control unit 410 can detect whether the first aerosol-generating substrate is reinserted. If the first aerosol generating substrate is reinserted within the extraction time, the first heater 4 The control unit 410 can heat the first heater 30 and the second heater 440 within the extraction time. If the aerosol-generating substrate is not reinserted, the first heater 430 and the second heater 440 Heating can be stopped. This allows the aerosol generating device 1 of the present disclosure to eliminate unnecessary consumption. It is possible to reduce power consumption and prevent equipment from overheating.

[0113] The puff detector 453 can detect a puff by a user. The detection unit 453 may include at least one pressure sensor.

[0114] When the pressure inside the aerosol generation device 1 is equal to or lower than the reference pressure, the puff detection unit 453 detects a puff. The detection signal can be transmitted to the control unit 410. The control unit 410 responds to the puff detection signal. In addition, the second heater 440 can be heated.

[0115] The temperature detector 455 is disposed on the first heater 430 and the second heater 440. The temperature of the first heater 430 and the second heater 440 can be detected by the temperature detector 45. For example, the temperature detector 455 may detect the temperature of the first heater 430. And the change in thermal resistance of the second heater 440 can be detected.

[0116] The temperature detector 455 can transmit a temperature detection signal to the controller 410. 10 calculates the temperatures of the first heater 430 and the second heater 440 based on the temperature detection signal. The control unit 410 can determine the temperature of the first heater 430 and the second heater 440 based on the temperatures of the first heater 430 and the second heater 440. The heating time, heating time, power supply, etc. of the first heater 430 and the second heater 440 are calculated based on the above. It is possible.

[0117] The output unit 460 outputs visual information and / or tactile information related to the aerosol generation device 1. It is possible.

[0118] The input unit 470 may receive user input. For example, the input unit 470 may include a pressure-sensitive push button. It is also provided in the form of a push button.

[0119] The input unit 470 can receive an on / off command for the aerosol generation device 1. When the input unit 470 receives an operation command for the aerosol generation device 1, The control signal can be transmitted to the controller 410 .

[0120] The memory 480 can store information for the operation of the aerosol generating device 1. For example, the memory 480 stores the temperature information that the control unit 410 supplies to the first heater 430 and the second heater 440. The power supplied to the aerosol generating device 1 is appropriately controlled to provide a variety of flavors to a user. It is possible to save a temperature profile to The profile includes the preheating time, preheating time, preheating temperature, etc. of the first heater 430 and the second heater 440. It includes information such as degree.

[0121] FIG. 5 shows the heater according to the embodiment of the present invention, depending on whether an aerosol-generating substrate is inserted or extracted. 4 is a flowchart illustrating an operation method.

[0122] Referring to FIG. 5, in step S510, the control unit 410 detects the interface of the substrate detection unit 451. Whether or not the first aerosol-generating substrate has been inserted into the cavity 15 is determined based on the amount of change in inductance. It can be detected.

[0123] The control unit 410 controls the first electrode based on the inductance output value output by the substrate detection unit 451. The control unit 410 determines whether the aerosol generating substrate is inserted into the cavity 15. When the change in the amount of change in the tank is equal to or greater than the preset upper critical value, the first aerosol generating substrate is It is determined that it was inserted into 5.

[0124] In step S520, when the first aerosol-generating substrate is inserted into the cavity 15, the control unit 410 In that case, the one or more heaters are controlled to heat the first aerosol-generating substrate.

[0125] The control unit 410 automatically controls the first aerosol-generating substrate when the first aerosol-generating substrate is inserted into the cavity 15. The heater 430 can be heated. That is, the control unit 410 controls the first aerosol generation When a substrate is inserted into the cavity 15, the first heater 430 can be turned on without user input. This can be done.

[0126] In step S530, the control unit 410 controls the substrate detection unit 412 to detect the aerosol-generating substrate while the substrate is heated. Based on the amount of change in inductance of 451, the first aerosol-generating substrate is extracted from the cavity 15. Detect whether the message has been issued or not.

[0127] The inductance output value of the substrate detection unit 451 is The extraction of the first aerosol-generating substrate can be increased by increasing the temperature of the heater 440. In order to accurately detect the substrate, it is necessary to correct the inductance output value of the substrate detection unit 451. be.

[0128] The control unit 410 controls the temperature of either the first heater 430 or the second heater 440. The inductance output value of the substrate detection unit 451 may be decreased in response to the increase.

[0129] The control unit 410 controls the first aerosol generating substrate based on the corrected inductance output value. The control unit 410 detects whether the corrected change in inductance is equal to or smaller than the preset value. If the lower critical value is not exceeded, it is determined that the first aerosol-generating substrate has been extracted from the cavity 15. It is possible.

[0130] In step S540, the control unit 410 detects that the first aerosol-generating substrate has been extracted from the cavity 15. In this case, the first detection unit 451 detects the substrate temperature based on the inductance change amount of the substrate detection unit 451 during the preset extraction time. Heating of the aerosol-generating substrate can be discontinued.

[0131] The control unit 410 detects the amount of change in inductance of the substrate detection unit 451 during a preset extraction time. The reinsertion or non-insertion of the first aerosol-generating substrate can be detected based on the extraction. The time may be, but is not limited to, five seconds.

[0132] The control unit 410 determines whether the inductance change amount of the substrate detection unit 451 during the extraction time is equal to or smaller than a preset value. If it is less than the upper critical value, the power supplied to the first heater 430 and the second heater 440 is That is, the control unit 410 can block the first aerosol-generating substrate from being extracted. If the device is in a state where the first aerosol-generating substrate is not reinserted within the preset extraction time, The heating of the first heater 430 and the second heater 440 can be stopped without any input from the user. can be done.

[0133] The control unit 410 determines whether the inductance change amount of the substrate detection unit 451 during the extraction time is equal to or smaller than a preset value. If the upper critical value is exceeded, it is determined that the first aerosol-generating substrate has been reinserted, and the first heater Power can continue to be supplied to the first heater 430 and the second heater 440.

[0134] FIG. 6 shows a method for detecting whether an aerosol-generating substrate is inserted and a method for detecting whether an aerosol-generating substrate is inserted. FIG. 7 is a flowchart for explaining a method of operating the heater and the output unit when 7 is a graph for explaining FIG. 6.

[0135] Referring to FIG. 6, in step S610, the control unit 410 determines whether the first aerosol-generating substrate is present. The substrate detector 451 may be activated to detect the substrate.

[0136] The control unit 410 controls the first heater 430 and the second heater 440 in a standby mode. In this mode, the power supplied to the substrate detection unit 451 can be supplied with power. The mode consumes only minimal power to detect the insertion of the first aerosol-generating substrate. The standby mode refers to the first aerosol generation before the first aerosol-generating substrate is inserted. The remaining components, excluding the components for detecting the insertion of the generated substrate (e.g., the substrate detection unit, etc.), The standby mode in this disclosure means any mode in which the power is cut off. For example, standby mode can be a power saving mode, a sleep mode, It is also a mode similar to sleep mode.

[0137] In step S620, the control unit 410 activates the substrate detection unit 451. The inductance output value of 451 may be collected periodically.

[0138] The collection period of the inductance output value is based on the power consumption, the amount of inductance variation, etc. For example, the control unit 410 may detect the illumination of the substrate detection unit 451 at intervals of 0.5 ms. The inductance output value can be collected, but is not limited to so.

[0139] In some embodiments, the control unit 410 detects the inductance output value of the substrate detection unit 451 in real time. It is also possible to collect the data in real time.

[0140] In step S630, the control unit 410 adjusts the inductance based on the inductance output value. The amount of change can be calculated.

[0141] In particular, the first aerosol-forming substrate comprises an electromagnetic inductor. When the substrate is inserted into the cavity 15, the inductance of the coil included in the substrate detection unit 451 increases. can be added.

[0142] FIG. 7 is a diagram illustrating the amount of change in inductance over time. In FIG. 7, the x-axis is The y-axis represents time, the y-axis represents the inductance output value of the substrate detection unit 451, and the first graph 710 shows the inductance change due to the insertion of the first aerosol-generating substrate.

[0143] When the first aerosol-generating substrate is inserted into the cavity 15 as shown in FIG. It can be seen that the output value of increases. The substrate detection unit 451 converts the inductance value into a detection signal. The control unit 410 can output the inductance increase amount Δ L1 can be calculated.

[0144] Also, in step S640 of FIG. 6, the control unit 410 determines the amount of change in inductance and the upper limit critical value. can be compared.

[0145] The upper limit critical value is determined by the self inductance of the substrate detection unit 451, Considering the mutual inductance between the part 451 and the first aerosol generating substrate For example, the upper critical limit can be set to +0.32 mH. do not have.

[0146] In step S650, if the amount of change in inductance is equal to or greater than the upper limit critical value, the control unit 410 If this is the case, it can be determined that the first aerosol-generating substrate has been inserted into cavity 15 .

[0147] For example, in FIG. 7, the control unit 410 determines whether the inductance increase amount ΔL1 is greater than the upper limit critical value. Since it is equal to or greater than th1, it is determined that the first aerosol-generating substrate has been inserted into cavity 15.

[0148] In another example, the control unit 410 may determine whether the inductance increase amount ΔL1 is greater than or equal to the upper limit critical value th1. If it is less than 1, it is determined that the first aerosol-generating substrate has not been inserted into the cavity 15, and the wait That is, the control unit 410 maintains the first heater 430 and the second heater 440 in the power can be continuously supplied to the substrate detection unit 451. In addition, the control unit 410 controls the indicator of the substrate detection unit 451 while supplying power to the substrate detection unit 451. The inductance output values ​​may be collected periodically.

[0149] In step S660 of FIG. 6, the control unit 410 controls the first aerosol-generating substrate to enter the cavity 15. When it is determined that the first aerosol generating substrate has been inserted, a trigger signal (t It is possible to output a trigger signal.

[0150] In one embodiment, the trigger signal is also a signal modulated through a PWM scheme. The control unit 410 outputs a trigger signal to the battery 420. The battery 420 receives the trigger signal. Based on the signal, power can be supplied to the first heater 430. The first aerosol 30 can be preheated by a trigger signal. The first heater 430 is automatically preheated in response to the insertion of the substrate for generating the polymer, which is convenient for the user. The advantage is that the

[0151] The second heater 440 is also turned on as soon as the first aerosol-generating substrate is inserted or as soon as the second aerosol-generating substrate is inserted. 1 Preheating is not initiated immediately upon detection of the aerosol-generating substrate. This is because preheating is not initiated immediately after the solid substrate is heated. In comparison to the first heater 430, a second heater 44 is provided to heat the liquid composition absorbed in the wick. This is because 0 makes it easier to reach the target preheat temperature.

[0152] The control unit 410, in a state where the preheating of the first heater 430 has started, Based on the time, the preheating start time of the second heater 440 can be calculated. For example, When the preheating time of the heater 430 is 30 seconds, the control unit 410 preheats the first heater 430. Preheating of the second heater 440 can be started from 27 seconds, which is 3 seconds before the completion. The method of preheating the first heater 430 and the second heater 440 will be described in more detail with reference to FIG.

[0153] In step S670, the output unit 460 visually or can be output audibly.

[0154] For this purpose, the output unit 460 may further include a display and a speaker. The unit 460 displays a detection screen of the first aerosol-generating substrate through a display and a speaker. It can also indicate whether to enter preheat mode or not.

[0155] FIG. 8 is a flowchart for explaining a heating method of the heater in the preheating section and the smoking section. It is.

[0156] Referring to FIG. 8, in step S810, the control unit 410 performs a pre-heating process for a preset pre-heating time. The first heater 430 may be preheated.

[0157] In particular, when it is determined that the first aerosol-generating substrate is inserted into the cavity, the control unit 410 A trigger signal for heating the first aerosol generating substrate is generated by a battery 4. The battery 420 can output the power to the first heater 420 based on the trigger signal. That is, the first heater 430 starts preheating in response to a trigger signal. It can be started.

[0158] The control unit 410 can heat the first heater 430 for a preset pre-heating time. For example, the preheat time may be, but is not limited to, 30 seconds.

[0159] The control unit 410 preheats the first heater 430 for a preset preheating time, thereby The temperature of the heater 430 may be increased to a vaporization temperature at which the first aerosol is generated. The aerosol generating device according to one or more embodiments provides a rich supply of aerosol to a user immediately upon the start of a smoking session. It is possible to provide a smoking sensation.

[0160] The control unit 410 determines whether to start preheating the second heater 440 based on the preheating time of the first heater 430. The time point can be calculated.

[0161] The control unit 410, in a state where the preheating of the first heater 430 has started, Preheating of the second heater 440 can be started at a first time point before the completion of the For example, when the preheating time of the first heater 430 is 30 seconds, the control unit 410 Preheating of the second heater 440 can be started from 27 seconds, which is 3 seconds before the completion of preheating of 30. .

[0162] The reason why the control unit 410 does not heat the second heater 440 at the same time as the preheating section starts is that Compared to the first heater 430 which heats a solid substrate such as a mortar, the liquid absorbed in the wick is This is because the second heater 440 for heating the composition can easily reach a desired preheat temperature.

[0163] The control unit 410 starts preheating the second heater 440 at the first time point. By controlling the power supplied to the second heater 440 during the period, the first time point is At the second point in time, the temperature of the second heater 440 is the vaporization temperature at which the second aerosol is generated. It can be controlled to exceed the limit.

[0164] In addition, the control unit 410 controls the second heater 4 to turn on during a second time period from the second time point until the end of the preheating period. By controlling the power supplied to the second heater 440, the temperature of the second heater 440 at the time of completion of preheating can be controlled. However, the vaporization temperature of the second aerosol-generating substrate is lower than the vaporization temperature of the second aerosol-generating substrate. The temperature can be controlled to be close to the temperature.

[0165] The temperature of the second heater 440 is set to a temperature lower than or close to the temperature at which the second aerosol is generated. The reason for preheating the aerosol to 300° C. is that the second aerosol generating substrate, which is provided to increase the amount of atomization, It prevents the generation of a second aerosol regardless of the user's puff and This is to rapidly heat the second aerosol-generating substrate in response to f).

[0166] In addition, the control unit 410 detects that a puff of the user is detected during a period from the second time point to the second time period. Even if the second heater 440 is turned on, no additional power is supplied to the second heater 440. This is to prevent the coil from carbonizing due to overheating.

[0167] In step S820, the control unit 410 controls the first smoking time during the preset smoking time after the pre-heating time. The heater 430 can be heated. For example, the smoking time can be set to 4 minutes, but it can be limited to that. Not limited to.

[0168] The control unit 410 controls the temperature of the first heater 430 in the smoking section to a temperature at which the first aerosol is generated. ℃ or more, and the second heater 440 can heat up in response to the user's puff. Cut.

[0169] In particular, the control unit 410 controls the temperature of the first heater 430 to be maintained at the first preheating temperature in the smoking section. For example, the control unit 410 can perform a proportional integral differential (PID) calculation. The temperature of the first heater 430 can be controlled by a PID (Proportional Integral Difference) control method. However, the invention is not limited thereto.

[0170] The control unit 410 controls the second heater 440 to be kept at a temperature at which the second aerosol is not generated. In this state, when the puff detector 453 detects a puff by the user, the temperature of the second heater 440 may increase.

[0171] In addition, when the control unit 410 increases the temperature of the second heater 440, the control unit 410 During this period, even if the puff detection unit 453 detects successive puffs by the user, The second heater 440 is not reheated. For example, the rest period may be 1 second. This is to prevent the coil from being carbonized due to overheating of the coil 440.

[0172] As described above, the present disclosure provides a preheating section before the smoking section, thereby The liquid viscosity just before the vaporization can be reduced to a viscosity at which vaporization can easily occur. This allows the liquid composition to be vaporized to the core. The advantage is that it can increase the moving speed of the vapor and significantly increase the initial amount of vapor generated when smoking. In addition, the increase in the initial atomization amount can increase user satisfaction.

[0173] In addition, when the temperatures of the first heater 430 and the second heater 440 increase, the substrate detection unit 45 The inductance output value of 1 increases. Therefore, the inductance output value is corrected. If the same criteria were used to determine the presence or absence of the first aerosol-generating substrate without the I end up doing this.

[0174] FIG. 9 is a graph showing a change in inductance output value due to a rise in heater temperature.

[0175] Referring to FIG. 9, as shown in FIG. 9, the inductance output value of the substrate detection unit 451 can be increased by increasing the temperature of the first heater 430 and / or the second heater 440.

[0176] FIG. 9 illustrates a change in the inductance output value due to a change in temperature of the first heater 430. In FIG. 9, the x-axis represents the temperature of the first heater 430, and the y-axis represents the temperature of the substrate detection unit 430. 51. The second graph 910 represents the inductance output value of the first heater 430. The third graph 920 shows the change in the measured inductance output value due to the temperature rise. 4 shows an ideal inductance output value due to a temperature rise of the heater 430.

[0177] In FIG. 9, the inductance output value is the first heater 430 as shown in the third graph 920. The inductance output value must be constant regardless of the temperature rise of the second As shown in graph 910, it increases with an increase in the temperature of the first heater 430. Therefore, in order to accurately detect whether the first aerosol-generating substrate is extracted, the second graph 91 The 0 needs to be corrected as in the third graph 920.

[0178] Also, in FIG. 9, the second graph 910 varies linearly with the temperature of the first heater 430. Although only the first heater 430 is shown, in some embodiments, the second graph 910 may include the first heater 430. It also varies nonlinearly with temperature changes.

[0179] FIG. 10 shows a method for detecting whether an aerosol-forming substrate is extracted and a method for detecting whether an aerosol-forming substrate is extracted. FIG. 11 is a diagram for explaining how the heater and the output unit operate when the heater and the output unit are connected to the power supply. 10 is a graph to explain

[0180] Referring to FIG. 10, in step S1010, the control unit 410 detects the substrate using the substrate detection unit 451. The inductance output values ​​may be collected periodically.

[0181] The collection period of the inductance output value is based on the power consumption, the amount of inductance variation, etc. For example, the control unit 410 may detect the illumination of the substrate detection unit 451 at intervals of 0.5 ms. The inductance output value can be collected, but is not limited to so.

[0182] In step S1020, the control unit 410 corrects the inductance output value of the substrate detection unit 451. It is possible.

[0183] The control unit 410 controls the inductance of the substrate detection unit 451 in response to the temperature rise of the first heater 430. This may reduce the output value of the transistor.

[0184] That is, the control unit 410 performs the following based on the inductance output value collected in step S1010. Therefore, a first relational expression between the temperature of the first heater 430 and the inductance output value can be derived. For example, the control unit 410 may use a least squares method to calculate the first A first relational expression between the temperature of the first heater 430 and the inductance output value can be estimated. The first relational expression between the temperature of the first heater 430 and the inductance output value is shown in the second graph 9 of FIG. 9, the control unit 410 calculates the three samples (p1, p 2, p3), a second graph 910 can be derived.

[0185] The memory 480 stores an ideal inductance output value according to the temperature rise of the first heater 430. The memory 480 stores the temperature of the first heater 430 and the ideal inductor The second relationship between the temperature of the first heater 430 and the ideal The second relationship with the inductance output value corresponds to the third graph 920 of FIG.

[0186] The control unit 410 calculates a correction value for the temperature based on the first relational expression and the second relational expression, and executes The correction value can be subtracted from the measured inductance output value. The second graph 910 may be corrected identically to the third graph 920 .

[0187] In step S1030, the control unit 410 adjusts the inductance based on the corrected inductance output value. The change in inductance can be calculated.

[0188] In particular, the first aerosol-forming substrate comprises an electromagnetic inductor. is extracted from the cavity 15, the inductance of the coil included in the substrate detection unit 451 is It can decrease.

[0189] FIG. 11 is a diagram illustrating the amount of change in inductance over time. In FIG. The y-axis represents time, the y-axis represents the inductance output value of the substrate detection unit 451, and the fourth Graph 1120 shows the change in inductance due to extraction of the first aerosol-generating substrate.

[0190] As shown in FIG. 11, when the first aerosol-generating substrate is extracted from cavity 15, It can be seen that the output value of the inductance decreases. The control unit 410 can output the detected value as a detection signal. The amount of loss ΔL2 can then be calculated.

[0191] Referring to FIG. 10, in step S1040, the control unit 410 calculates the amount of change in inductance The lower critical value can be compared.

[0192] The lower limit critical value is the self inductance of the substrate detection unit 451, Considering the mutual inductance between the part 451 and the first aerosol generating substrate For example, the lower critical value can be set to -0.32mH, but it is limited to that. do not have.

[0193] In step S1050, the control unit 410 detects whether the change in inductance is equal to or smaller than the lower limit critical value. If so, it is determined that the first aerosol-generating substrate has been extracted from cavity 15.

[0194] For example, in FIG. 11, the control unit 410 detects that the inductance decrease amount ΔL2 is at the lower limit critical value. Since this is below the value th2, it is determined that the first aerosol-generating substrate has been extracted from cavity 15.

[0195] In another example, the control unit 410 may determine whether the inductance decrease amount ΔL2 is greater than the lower limit critical value. If so, it is determined that the first aerosol-generating substrate is still inserted into the cavity 15. The heater 430 and the second heater 440 are heated, and the inductance output value is corrected based on the corrected inductance output value. The amount of change in inductance can be calculated using the above formula.

[0196] The absolute value of the lower limit threshold th2 in FIG. 11 is the same as the absolute value of the upper limit threshold th1 in FIG. If the absolute value of the lower threshold th2 is set to be equal to the absolute value of the upper threshold th1, The insertion and extraction of aerosol-generating substrates can be more precisely determined.

[0197] In step S1060, the control unit 410 controls the controller 410 to extract the first aerosol-generating substrate from the cavity 15. If it is determined that the aerosol has been emitted, the amount of the aerosol generated in the first aerosol-generating substrate is determined based on the amount of inductance change. Decide whether to stop heating.

[0198] The method of determining whether to stop heating the first heater 430 and the second heater 440 is shown in FIG. This will be explained in more detail.

[0199] In step S1070, the output section 460 visually indicates the extraction state of the aerosol-generating substrate. or audibly.

[0200] For this purpose, the output unit 460 may further include a display and a speaker. The unit 460 displays a screen for extracting the first aerosol-generating substrate through a display and a speaker. and indicates whether to enter standby mode or not.

[0201] FIG. 12 is a diagram illustrating how the heater is turned off when the aerosol-generating substrate is extracted. 1 is a flowchart for

[0202] Referring to FIG. 12, in step S1210, the control unit 410 performs a basic extraction for a preset extraction time. The inductance output value of the quality detector 451 can be periodically collected. A fixed extraction time may be, but is not limited to, 5 seconds.

[0203] In step S1220, the control unit 410 controls the inductance based on the inductance output value. The amount of change in the chest of drawers can be calculated.

[0204] As shown in Figures 10 and 11, the extraction of the first aerosol-generating substrate can be more accurately determined. The control unit 410 can use the corrected inductance output value to make the determination. That is, the control unit 410 controls the inductance based on the corrected inductance output value. The amount of change in the chest of drawers can be calculated.

[0205] In step S1230, the control unit 410 calculates the inductance change amount and the upper limit critical value. Comparisons can be made.

[0206] The upper limit critical value is determined by the self inductance of the substrate detection unit 451, Considering the mutual inductance between the part 451 and the first aerosol generating substrate For example, the upper critical limit can be set to +0.32 mH. do not have.

[0207] In step S1240, the control unit 410 detects whether the change in inductance is less than the upper limit critical value. If the upper critical limit of FIG. 12 is reached, heating of the first aerosol-generating substrate can be discontinued. The value is the same as the upper critical value in FIG.

[0208] In step S1250, the control unit 410 detects whether the change in inductance is greater than or equal to the upper limit critical value. If so, it can be determined that the first aerosol-generating substrate has been reinserted.

[0209] In step S1260, the control unit 410 detects that the first aerosol-generating substrate is reinserted. If so, heating of the first aerosol-generating substrate can be maintained.

[0210] As described above, the present disclosure relates to an aerosol generating device 1 for extracting an aerosol-generating substrate. Even if it is initially judged that the aerosol is generated, the heater should not be immediately turned off, and the aerosol generating substrate should be extracted. After the second judgment is made as to whether the aerosol particles are dispersed or not, the heater stops heating. The generation device 1 may be operated due to a user error (e.g., the aerosol generation device is not operated in a normal manner) contrary to the user's intention. The first aerosol-generating substrate may be dropped, or the first aerosol-generating substrate may come into contact with the user's mouth. When the aerosol-forming substrate is extracted, the heater is not turned off, and the aerosol-forming substrate is re-extracted. The heater stops heating when it detects whether the cartridge is inserted or not.

[0211] As a result, the aerosol generating device 1 of the present disclosure may cause the heater to heat up unexpectedly, contrary to the user's intention. Not only does it prevent heat loss, but it also keeps the heater temperature constant throughout the smoking time. It is possible to provide the user with a rich smoking experience.

[0212] Components, elements, and modules represented by blocks in the drawings, such as the control unit 12 in FIG. At least one of the following components or units (collectively referred to in this paragraph as "components") According to the embodiment described above, various numbers of hardware, software, and the like are used to perform the respective functions. The present invention may be embodied in a software and / or firmware structure. For example, At least one of the components is a memory, a processor, a logic circuit, a lookup table, Alternatively, a direct circuit structure such as a cascade may be used. One is embodied in a module, program, or part of code, contains one or more executable instructions for performing a particular logical function and is implemented by one or more microprocessors. The components may also be implemented by a processor or other control device. At least one central processing unit (CPU) that processes each function, These components include or are embodied by a processor, such as a processor. Two or more of the components are combined by one or more single components to form a single component. A component can perform all the actions or functions of two or more components combined. In addition, some of the functionality of at least one of these components may be shared with other components. Also, the bus (BUS) is not shown in the block diagram. However, communication through the components may also occur through a bus. Functional aspects may also be embodied by algorithms executed on one or more processors. Also, the components represented by blocks or processing steps may be electronic configurations, signal processing, and and / or any number of related techniques for control, data processing may be employed.

[0213] The above-mentioned method can be implemented in a computer-executable program, and can be implemented in a computer-executable program. The program is executed using a non-transitory recording medium that can be read by a computer. The data used in the above-described method may be implemented in a general-purpose digital computer. The structure may be stored on the computer readable recording medium in a number of ways. The computer-readable recording medium is a magnetic recording medium (e.g., a ROM (Read Only) y Memory), RAM, USB, floppy disk, hard disk, etc.), optical recording media This includes recording media such as software (e.g., CD-ROM, DVD, etc.).

[0214] A person having ordinary skill in the art to which the present embodiment pertains will understand the essential characteristics of the above description. It will be understood that the invention can be embodied in a modified form without departing from the scope of the invention. Accordingly, the disclosed methods should be considered in an illustrative rather than a limiting sense. The scope of the present invention is defined by the claims and includes any modifications, alternatives, improvements, and equivalents. Any equivalents thereto should be construed as being encompassed by this invention.

Claims

1. a first heater for heating an aerosol-generating substrate accommodated in the cavity, the aerosol-generating substrate having a front-end plug at a front end thereof and an electromagnetic inductor disposed in a region corresponding to the front-end plug; a substrate sensing unit that senses insertion and extraction of the aerosol-generating substrate based on an amount of change in inductance caused by the electromagnetic induction of the aerosol-generating substrate; a battery that supplies power to the first heater; a control unit that controls power supplied to the first heater, The control unit is heating the aerosol-generating substrate when the aerosol-generating substrate is inserted into the cavity, and stopping heating the first heater when the aerosol-generating substrate is not reinserted within a preset extraction time after being extracted; The aerosol generating device is configured to maintain heating of the first heater if the aerosol generating substrate is reinserted within the extraction time after extraction.

2. The control unit is if the change in inductance is equal to or greater than a first critical value in a state in which the aerosol-generating substrate is extracted, it is determined that the aerosol-generating substrate is inserted into the cavity; The aerosol generating device of claim 1 , configured to determine that the aerosol generating substrate has been extracted from the cavity when the aerosol generating substrate is inserted and the change in inductance is less than a second critical value.

3. The control unit is The aerosol generating device of claim 1 , further comprising: a first heater that is configured to stop heating when the aerosol generating substrate is extracted and the change in inductance is less than a third critical value during the extraction time.

4. a temperature sensor configured to sense a temperature of the first heater, The control unit is The aerosol generating device of claim 1 , configured to correct an output value of the substrate sensing unit based on the temperature of the first heater.

5. The control unit is The aerosol generating device according to claim 4 , wherein the output value of the substrate sensing unit is set to decrease as the temperature of the first heater increases.

6. The control unit is The aerosol generating device of claim 1, which is configured to raise the temperature of the first heater to a vaporization temperature for generating an aerosol for a preset pre-heating time when the aerosol generating substrate is inserted into the cavity, and to maintain the temperature of the first heater above the vaporization temperature for a preset smoking time.

7. The aerosol-generating device according to claim 1 , further comprising an output unit that outputs, when the aerosol-generating substrate is extracted from the cavity, information indicating that the aerosol-generating substrate has been extracted from the cavity.

8. a vaporizer for heating the liquid composition to produce an aerosol; The aerosol generating device of claim 1 , wherein the aerosol generated by the vaporizer is transmitted to a user through the aerosol generating substrate.

9. The vaporizer comprises: A liquid storage unit for storing the liquid composition; a second heater for heating the liquid composition to generate an aerosol; The aerosol generating device according to claim 8 , further comprising: a liquid transferring means for transferring the liquid composition in the liquid storage portion to the second heater.

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