Aerosol Generator

Abstract

An aerosol generating device is disclosed, which includes a body including an insertion space, a heater for heating the insertion space, and a sensor provided within the body, the sensor including an induction sensor including a planar sensing coil wound from a center in an outward direction, and a capacitance coil including a sensing electrode and disposed adjacent to and parallel to the sensing coil to cover one side of the sensing coil.

Description

[Technical Field]

[0001] The present disclosure relates to aerosol generating devices. [Background technology]

[0002] An aerosol generating device is used to extract a predetermined component from a medium or substance by forming an aerosol. The medium may contain a variety of components. The components contained in the medium may be flavorings of a variety of components. For example, the components contained in the medium may include nicotine, herbal, and / or coffee components. In recent years, much research has been conducted on such aerosol generating devices. Summary of the Invention [Problem to be solved by the invention]

[0003] The present disclosure is directed to solving the above-mentioned problems and other problems.

[0004] Another object of the present disclosure is to implement various sensing functions using a single sensor.

[0005] Yet another object of the present disclosure is to eliminate noise without the need for shielding. [Means for solving the problem]

[0006] According to one aspect of the present disclosure to achieve the above-mentioned object, an aerosol generating device is provided, comprising: a body including an insertion space; a heater for heating the insertion space; and a sensor provided within the body, the sensor comprising an induction sensor including a planar sensing coil wound outward from the center; and a capacitance coil including a sensing electrode, arranged adjacent to and parallel to the sensing coil, and covering one side of the sensing coil. [Effects of the Invention]

[0007] According to at least one of the embodiments of the present disclosure, a single sensor can implement various sensing functions.

[0008] At least one of the embodiments of the present disclosure can eliminate noise without the need for shielding materials.

[0009] Further scope of applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure will be apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0010] The above and other objects, features and characteristics of the present disclosure will become apparent from the following detailed description taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 2] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 3] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 4] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 5] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 6] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 7] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 8] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 9] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 10]FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 11] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 12] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 13] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The same or similar components are given the same reference numerals even if they are shown in different drawings, and redundant description thereof will be omitted.

[0013] The suffixes "module" and "section" for components used in the following description are used solely for the convenience of explanation of the specification. "Module" and "section" do not have different meanings or roles from each other.

[0014] Furthermore, in the following description of the embodiments disclosed herein, detailed descriptions of related known technologies may be omitted if they may obscure the gist of the embodiments disclosed herein. The accompanying drawings are provided to facilitate understanding of the embodiments disclosed herein, and do not limit the technical ideas disclosed herein. Therefore, the accompanying drawings should be interpreted as including all modifications, equivalents, and alternatives within the spirit and scope of the present disclosure.

[0015] Terms including ordinal numbers such as "first," "second," etc. may be used to describe various components, but it should be understood that the components are not limited by the terms. The terms are used only to distinguish one component from another.

[0016] When a component is said to be "connected" to another component, it will be understood that there may be other components in between, whereas when a component is said to be "directly connected" to another component, it will be understood that there are no other components in between.

[0017] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0018] 1 and 2, the aerosol generating device may include a body 100. The body 100 may house various components therein. The body 100 may have an insertion space 114. A pipe 110 may be formed inside the body 100. The pipe 110 may form an insertion space 114 therein. The insertion space 114 may be open at the top. The insertion space 114 may extend vertically. A stick 200 may be inserted into the insertion space 114. The stick 200 may contain an aerosol generating substance therein. The stick 200 may be referred to as a cigarette 200 or an aerosol producing product 200.

[0019] The aerosol generating device may include a heater 120. The heater 120 may be disposed inside the body 100. The heater 120 may be disposed around the insertion space 114. The heater 120 may surround the insertion space 114. As another example, the heater 120 may protrude from the insertion space 114. When the stick 200 is inserted into the insertion space 114, the heater 120 may be inserted into the stick 200. As another example, the heater 120 may be disposed inside the stick 200 and formed integrally with the stick 200, and may be inductively heated by an induction coil (not shown) around the insertion space 114. The heater 120 may be an electric resistance heater or an induction heater. The heater 120 may heat the insertion space 114. The heater 120 may heat the stick 200. The stick 200 is heated by the heater 120 to vaporize the aerosol-generating material therein, thereby generating an aerosol.

[0020] The aerosol generating device may include a control unit 130. The control unit 130 may be disposed inside the body 100. The control unit 130 may generally control the operation of the components of the aerosol generating device. The control unit 130 may control the operation of the heater 120, the battery 140, the cartridge 150, and the sensor 160, as well as other components included in the aerosol generating device. For example, the control unit 130 may control the operation of a display, a motor, and the like installed in the aerosol generating device. The control unit 130 may include at least one processor. The processor may be implemented as an array of multiple logic gates or as a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. It will be understood by those skilled in the art to which this embodiment pertains that the processor may also be implemented as other types of hardware.

[0021] The aerosol generating device may include a battery 140. The battery 140 may be disposed inside the body 100. The battery 140 may supply power used to operate various components of the aerosol generating device. For example, the battery 140 may supply power to the heater 120 to generate heat. As another example, the battery 140 may supply power to operate the control unit 130. As another example, the battery 140 may supply power to operate the sensor 160. As another example, the battery 140 may supply power necessary to operate a display, a motor, etc. installed in the aerosol generating device.

[0022] The aerosol generating device may further include a cartridge 150. The cartridge 150 may be disposed on one side of the body 100. The cartridge 150 may be detachably coupled to one side of the body 100. The cartridge 150 may be disposed adjacent to the pipe 110. The cartridge 150 may be disposed parallel to the insertion space 114. The cartridge 150 may be disposed parallel to the insertion space 114.

[0023] The cartridge 150 can heat the liquid composition to generate an aerosol, and the generated aerosol can be transmitted to the user through the stick 200. In other words, the aerosol generated by the cartridge 150 can travel along an airflow passage of the aerosol generating device, and the airflow passage can be configured so that the aerosol generated by the cartridge 150 can be transmitted to the user through the stick 200. When the aerosol generating device includes the cartridge 150, the heater 120 can be omitted.

[0024] For example, cartridge 150 may include, but is not limited to, a liquid reservoir, a liquid transfer means, and a heating element. For example, the liquid reservoir, the liquid transfer means, and the heating element may be included in the aerosol generating device as independent modules.

[0025] The liquid reservoir can store a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing substance including a volatile tobacco flavor component, or a liquid containing a non-tobacco substance. The liquid reservoir can be detachably mounted on the cartridge 150 or can be integrally mounted on the cartridge 150.

[0026] For example, the liquid composition may contain water, solvent, ethanol, plant extract, fragrance, flavoring, or a vitamin mixture. Flavorings may include, but are not limited to, menthol, peppermint, spearmint oil, and various fruit flavoring ingredients. Flavorings may include ingredients that can provide users with a variety of flavors or tastes. The vitamin mixture may be, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. The liquid composition may also contain an aerosol-forming agent, such as glycerin and propylene glycol.

[0027] The liquid transfer means can transfer the liquid composition in the liquid reservoir to the heating element. For example, the liquid transfer means can be a wick such as, but not limited to, cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

[0028] The heating element is an element for heating the liquid composition delivered by the liquid delivery means. For example, the heating element can be, but is not limited to, a metal hot wire, a metal hot plate, a ceramic heater, etc. The heating element can also be made of a conductive filament such as nichrome wire and can be arranged in a structure wound around the liquid delivery means. The heating element can be heated by supplying an electric current and can transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, an aerosol can be generated.

[0029] For example, but not limited to, cartridge 150 may be referred to as a cartomizer or an atomizer.

[0030] Meanwhile, the aerosol generating device may further include general-purpose components in addition to the battery 140, the control unit 130, and the cartridge 150. For example, the aerosol generating device may further include an induction coil (not shown) that heats the heater 120 by induced current. As another example, the aerosol generating device may include a display that can output visual information and / or a motor for outputting tactile information. The aerosol generating device may also include at least one sensor (such as a puff detection sensor, a temperature detection sensor, or a cigarette insertion detection sensor). The aerosol generating device may also be fabricated with a structure that allows external air to flow in or internal gas to flow out even when the cigarette 200 is inserted.

[0031] The aerosol generating device may include a sensor 160. The sensor 160 may be provided in the body 100. The sensor 160 may include an inductive sensor 161 (see FIG. 3) that senses changes in surrounding inductance. The sensor 160 may include a capacitance sensor 165 (see FIG. 3) that senses changes in surrounding capacitance. The sensor 160 may be disposed adjacent to the insertion space 114. The sensor 160 may be disposed adjacent to one side of the pipe 110. The sensor 160 may face the insertion space 114. The sensor 160 may be disposed between the insertion space 114 and the cartridge 160. One side of the sensor 160 may face the insertion space 114, and the other side of the sensor 160 may face the cartridge 160. The sensor 160 may detect whether a stick 400 has been inserted into the insertion space 114, whether the inserted stick 400 is a set dedicated stick 400, and the degree of use of the stick 400. The sensor 160 can transmit the sensed information to the control unit 130 .

[0032] The internal structure of the aerosol generating device is not limited to that shown in the drawings. In other words, the arrangement of the heater 120, the control unit 130, the battery 140, the cartridge 150, the sensor 160, etc. is not limited to that shown in the drawings and can be changed depending on the design of the aerosol generating device.

[0033] The user can inhale the aerosol by holding in his mouth a part of the stick 200 that protrudes from the insertion space 114. Here, aerosol is generated as external air passes through the stick 200, and the generated aerosol can be delivered to the user's mouth through the stick 200.

[0034] For example, external air can flow in through at least one air passage formed in the aerosol generating device. For example, the user can adjust the opening and / or closing of the air passage formed in the aerosol generating device and / or the size of the air passage. This allows the user to adjust the amount of atomization, smoking sensation, etc. As another example, external air can flow into the stick 200 through at least one hole formed on the surface of the stick 200.

[0035] The substrates and grounding portions shown in FIGS. 3, 6, 9, and 12 below are illustrated and described to facilitate understanding of the invention and are not intended to limit the configuration or arrangement of the capacitance sensor and inductive sensor. The capacitance sensor is merely one example of a possible capacitance sensor, and the configuration and arrangement of the capacitance sensor are not limited to the illustrated ones. The capacitance sensor may be a self-capacitance sensor or a mutual capacitance sensor. The illustrated capacitance sensor is an example of a self-capacitance sensor, but the capacitance sensor may be a mutual capacitance sensor, unlike the illustrated ones. Furthermore, the inductive sensors and sensing coils shown in FIGS. 3, 6, 9, and 12 are merely one example of a possible configuration of the inductive sensor, and are not limited to the illustrated configuration and arrangement of the inductive sensor. It is obvious that the arrangement of the substrate can be modified, except for the arrangement and shape of the sensing coil of the inductive sensor and the sensing electrode of the capacitance sensor.

[0036] 3 to 5, the sensor 160 can simultaneously function as an induction sensor 161 and a capacitance sensor 165, and can perform different sensing operations while preventing external noise from entering. This will be described below.

[0037] The sensor 160 may be disposed inside the body 100. The sensor 160 may be disposed outside the pipe 110 adjacent to the pipe 110. The sensor 160 may face one side of the pipe 110. The location of the sensor 160 is not limited thereto.

[0038] The sensor 160 can detect the stick 200 inserted into the insertion space 114. The stick 200 can include a metal material. For example, the stick 200 can include a marker 220 in the form of a thin metal film surrounding an outer wrapper. The sensor 160 can detect a change in capacitance and / or a change in inductance and transmit the information to the control unit 130. The control unit 130 can receive the information from the sensor 160 and determine whether the stick 200 has been inserted into the insertion space 114, whether the stick 200 inserted into the insertion space 114 is a set-up dedicated stick 200, or whether the stick 200 inserted into the insertion space 114 has been used.

[0039] The sensor 160 may include an inductive sensor 161. The sensor 160 may include a capacitance sensor 165. The inductive sensor 161 and the capacitance sensor 165 may be disposed adjacent to each other. The inductive sensor 161 and the capacitance sensor 165 may be disposed parallel to each other or facing each other.

[0040] The capacitance sensor 165 may include a sensing electrode 166. The sensing electrode 166 may be formed of a conductive metal. The capacitance sensor 165 may include a substrate 167. A sensor that detects a change in capacitance of the sensing electrode 166 may be mounted on the substrate 167. The sensor on the substrate 167 may be electrically connected to the sensing electrode 166. The sensing electrode 166 may be printed on or mounted on the substrate 167. Alternatively, the sensing electrode 166 may be electrically connected to the sensor while being spaced apart from the substrate 167. The capacitance sensor 165 may include a ground portion 168. The ground portion 168 may be mounted on or printed on the substrate 167. The ground portion 168 faces the sensing electrode 166 and may ground the sensing electrode 166. The substrate 167 may be, but is not limited to, a PCB, an FPCB, etc.

[0041] The sensing electrode 166 may be a self-capacitance sensor. The sensing electrode 166 may have a rectangular shape. The sensing electrode 166 may be formed of a thin metal film. For example, the sensing electrode 166 may be a copper foil. When the capacitance sensor 165 is a self-capacitance sensor, the sensing electrode 166 is a metal pad and serves as one parallel plate, and the stick 200 inserted into the insertion space 114 serves as the other parallel plate.

[0042] As another example, the sensing electrode 166 may be a mutual capacitance sensor, in which case, for example, the sensing electrode 166 may be configured with a transmitting electrode and a receiving electrode facing each other.

[0043] The capacitance sensed by the capacitance sensor 165 may change depending on whether the stick 200 is inserted into the insertion space 114. Alternatively, the capacitance sensed by the capacitance sensor 165 may change depending on the type of stick 200 inserted into the insertion space 114. For example, the type of metal material of the marker 220 or the presence or absence of a marker 220 may vary depending on the type of stick 200. Therefore, the capacitance sensor 165 may sense which type of stick 200 is inserted into the insertion space 114. Alternatively, when the stick 200 inserted into the insertion space 114 is used, the capacitance sensed by the capacitance sensor 165 may change depending on the degree of use. For example, the amount of moisture contained in the stick 200 changes as the stick 200 is used, which may cause a change in the capacitance sensed by the capacitance sensor 165. Therefore, the capacitance sensor 165 can determine the degree of use of the stick 200 inserted into the insertion space 114 or whether the stick 200 is being puffed. The control unit 130 can pre-store capacitance values ​​for each state in memory.

[0044] The induction sensor 161 may include a sensing coil 162. The sensing coil 162 may be formed of a conductive metal. The sensing coil 162 may also be referred to as an inductance coil 162. The induction sensor 161 may include a substrate 163 having a sensor that detects changes in inductance. The induction sensor 161 may be mounted or printed on the substrate 163. Alternatively, the induction sensor 161 may be electrically connected to the substrate 163 at a distance. The substrate 163 may be, but is not limited to, a PCB, an FPCB, or the like. The substrate 163 does not necessarily need to be arranged parallel to the capacitance sensor 165 as shown, and may be electrically connected to the sensing coil 162 at a distance.

[0045] When the magnetic field changes around the sensing coil 162, through which current flows due to electromagnetic induction, the characteristics of the current flowing through the sensing coil 162 may change. Depending on whether the stick 200 is inserted into the insertion space 114, the current flowing through the sensing coil 162 may induce an eddy current in the marker 220 of the stick 200. The eddy current flowing through the marker 220 may further change current characteristics, such as the frequency of the current flowing through the sensing coil 162 and the inductance value of the coil, due to mutual induction with the sensing coil 162. The induction sensor 161 may detect changes in the characteristic value of the current flowing through the sensing coil 162 or changes in inductance. The induction sensor 161 may transmit information about the detected inductance to the control unit 130. The control unit 130 may determine whether the stick 200 is inserted into the insertion space 114 or the type of stick 200 inserted into the insertion space 114 based on the inductance information received from the induction sensor 161. The control unit 130 may pre-store inductance values ​​corresponding to each state in a memory.

[0046] The capacitance sensor 165 is more sensitive to humidity changes than the inductive sensor 161, and therefore can be specialized for determining the extent to which the stick 200 has been used or whether the stick 200 has been puffed. The inductive sensor 161 is more sensitive to the movement of materials with high magnetic permeability than the capacitance sensor 165, and therefore can be specialized for determining whether the stick 200 has been inserted into the insertion space 114 or the type of stick 200 inserted into the insertion space 114.

[0047] The sensing coil 162 may be arranged to face the pipe 110 and / or the insertion space 114. The sensing electrode 166 may be arranged to face the pipe 110 and / or the insertion space 114. The sensing coil 162 may be arranged between the insertion space 114 and the sensing electrode 166. The sensing coil 162 may be closer to the insertion space 114 than the sensing electrode 166.

[0048] The sensing coil 162 may be wound so as to expand radially outward from the central axis. The central axis of the sensing coil 162 may face the insertion space 114. The sensing coil 162 may overlap the front surface of the capacitance sensor 165. The sensing electrode 166 of the capacitance sensor 165 may overlap the rear surface of the sensing coil 162. The capacitance sensor 165 may cover the rear surface of the sensing coil 162. The sensing coil 162 and the sensing electrode 166 may be arranged parallel to each other or facing each other. The sensing coil 162 and the sensing electrode 166 may have corresponding peripheral shapes. For example, the peripheral shapes of the sensing coil 162 and the sensing electrode 166 may be rectangular. Thus, the sensing coil 162 and the sensing electrode 166 may cover each other.

[0049] If the sensing coil 162 is wound relatively tightly with a small separation width, the sensing coil 162 may block the electric field flowing into the capacitance sensor 165, thereby preventing the capacitance sensor 165 from sensing changes in capacitance in the insertion space 114. Therefore, the sensing coil 162 may be wound relatively loosely with a predetermined separation width so as not to block the capacitance sensor 165 from sensing the insertion space 114.

[0050] Therefore, the capacitance sensor 165 and the induction sensor 161 can simultaneously perform various sensing functions in a single sensor 160. In addition, the capacitance sensor 165 shields the magnetic field, thereby preventing external noise from being generated in the induction sensor 161. The sensor 160 sensing the insertion space 114 is just one example, and the sensing target is not limited thereto.

[0051] The sensor 160 can surround the pipe 110. The sensor 160 can have a cylindrical shape. The substrates 163, 162 of the sensor 160 can include FPCBs.

[0052] The sensor 160 may further include a shielding ring 164. The shielding ring 164 may surround the inductive sensor 161. The shielding ring 164 may extend along the periphery of the sensing coil 161 in the direction in which the sensing coil 161 is wound. The shielding ring 164 may shield the magnetic field from the inductive sensor 161 and concentrate the magnetic field in the direction of the insertion space 114. For example, the shielding ring 164 may be made of a material such as ferrite, nanocrystal, or a metal material. However, the material of the shielding ring 164 is not limited thereto.

[0053] The sensor 160 may further include a shielding member 169. The shielding member 169 may overlap the rear of the capacitance sensor 165. The shielding member may be made of a conductive material such as aluminum or copper, or a carbon material such as carbon fiber or carbon nanotubes. The shielding member 169 can shield noise from the rear of the capacitance sensor 165. The shielding member 169 may have a porous metal mesh shape. The shielding member 169 may have a mesh shape. If the shielding member 169 has a porous mesh shape, it has a relatively lower capacitance than a metal plate and can therefore be positioned closer to the capacitance sensor 165 than a metal foil. Therefore, the shielding member 169 may be printed on the rear of the substrate 167 and formed integrally with the capacitance sensor 165.

[0054] 6 to 8, the shielding member 169 of the embodiment of FIGS. 3 to 5 may be omitted from the sensor 160. The body 100 (see FIGS. 1 and 2) may further include a partition 111. The partition 111 may be spaced apart from the pipe 110 by a predetermined distance. For example, the pipe 110 and the partition 111 may extend vertically. The cartridge 150 may be coupled to the partition 111. The cartridge 150 may be disposed parallel to the pipe 110. The sensor 160 may be disposed between the pipe 110 and the partition 111. The sensor 160 may be disposed between the insertion space 114 and the cartridge 150.

[0055] The inductive sensor 161 and the capacitance sensor 165 may face in different directions. For example, the inductive sensor 161 may face the insertion space 114, and the capacitance sensor 165 may face the cartridge 150. As another example, the inductive sensor 161 may face the cartridge 150, and the capacitance sensor 165 may face the insertion space 114.

[0056] The sensing coil 162 of the induction sensor 161 is wound relatively tightly to shield the electric field that flows into the capacitance sensor 165 from the insertion space 114. Here, the sensing coil 162 can function as a metal shielding member with holes formed therein.

[0057] Therefore, the induction sensor 161 can sense whether the stick 200 is inserted into the insertion space 114 and the type of the stick 200 inserted into the insertion space 114 by the change in inductance. Also, the capacitance sensor 165 can sense whether the cartridge 150 is attached to the body 100 and the volume of liquid stored in the cartridge 150 by the change in capacitance.

[0058] Therefore, the sensing coil 162 shields the capacitance sensor 165 from external noise, preventing noise from entering the capacitance sensor 165 from the insertion space 114. In addition, the sensing electrode 166 of the capacitance sensor 165 shields the inductance coil 161 from external noise, preventing noise from entering the inductance sensor 161 from the cartridge 150.

[0059] 9 to 11, the first induction sensor 161 may include a first sensing coil 1621 and a substrate 163. The substrate 163 does not necessarily need to be disposed facing the capacitance sensor 165 as shown. The first sensing coil 1621 and the capacitance sensor 165 may face each other or be disposed parallel to each other. The second induction sensor 161′ may include a second sensing coil 1622. The second sensing coil 1622 may be mounted or printed on a substrate 167 of the capacitance sensor 165. Here, a sensor that senses a change in inductance via the second sensing coil 1622 may be mounted or printed on the substrate 167. In this case, the second induction sensor 161′ may include a substrate 167 on which the second sensing coil 1622 and a sensor that senses a change in inductance of the second sensing coil 1622 are mounted. This is merely an example, and it is obvious that the second sensing coil 1622 can be coupled to a substrate other than the substrate of the capacitance sensor 165 .

[0060] The sensor 160 may be disposed between the insertion space 114 and the space in which the cartridge 150 is located. The capacitance sensor 165 may be disposed between a pair of a first sensing coil 1621 and a second sensing coil 1622. The first sensing coil 1621 may cover one side of the capacitance sensor 165, and the second sensing coil 1622 may cover the other side of the capacitance sensor 165. The first sensing coil 1621, the second sensing coil 1622, and the sensing electrode 166 may be disposed parallel to each other or facing each other. The first sensing coil 1621 and the sensing electrode 166 may face one side, and the second sensing coil 1622 may face the other side. For example, the first sensing coil 1621 and the sensing electrode 166 may face the insertion space 114, and the second sensing coil 1622 may face the cartridge 150. The first sensing coil 1621 and the second sensing coil 1622 may be wound to expand radially outward from the central axis.

[0061] The first sensing coil 1621 may have a smaller number of turns than the second sensing coil 1622. The first sensing coil 1621 may have a larger width of turns at a predetermined interval than the second sensing coil 1622. The first sensing coil 1621 may not shield the capacitance sensor 165 as much as the second sensing coil 1622, and the second sensing coil 1622 may shield the capacitance sensor 165. That is, in the case of an induction sensor, the amount of change in inductance can be sensed from the insertion space 114 side via the first sensing coil 1621, and the amount of change in inductance can be sensed from the cartridge 150 side via the second sensing coil 1622. In addition, in the case of a capacitance sensor, the amount of change in capacitance can be sensed from the axis of the insertion space 114 via the sensing electrode 166.

[0062] 12 and 13, the first sensing coil 1621 and the sensing electrode 166 may face the cartridge 150, and the second sensing coil 1622 may face the insertion space 114. In the case of an induction sensor, the amount of change in inductance may be sensed from the cartridge 150 side via the first sensing coil 1621, and the amount of change in inductance may be sensed from the insertion space 114 side via the second sensing coil 1622. In addition, in the case of a capacitance sensor, the amount of change in capacitance may be sensed from the cartridge 150 side via the sensing electrode 166.

[0063] 1 to 13, an aerosol generating device according to one aspect of the present disclosure includes a body including an insertion space, a heater for heating the insertion space, and a sensor provided within the body, the sensor including an induction sensor including a planar sensing coil wound outward from the center, and a capacitance coil including a sensing electrode, arranged adjacent to and parallel to the sensing coil, and covering one side of the sensing coil.

[0064] According to another aspect of the present disclosure, the sensing coil and the sensing electrode face the insertion space, the sensing coil is disposed between the insertion space and the sensing electrode, the capacitance sensor senses changes in capacitance of the insertion space, and the induction sensor senses changes in inductance of the insertion space.

[0065] According to another aspect of the present disclosure, the sensing electrode can shield the sensing coil from a magnetic field.

[0066] According to another aspect of the present disclosure, the aerosol generating device may further include a shielding member disposed on the opposite side of the capacitance sensor from the induction sensor and covering the other side of the capacitance sensor.

[0067] According to another aspect of the present disclosure, the aerosol generating device further includes a cartridge adjacent to the insertion space and coupled to the body, the sensor is disposed between the insertion space and the cartridge, the sensing coil faces one of the insertion space and the cartridge, the sensing electrode faces the other of the insertion space and the cartridge, the induction sensor senses changes in inductance, and the capacitance sensor senses changes in capacitance.

[0068] According to another aspect of the present disclosure, the sensing coil may be wound to electrically shield the sensing electrode from an electric field, and the sensing electrode may magnetically shield the sensing coil from a magnetic field.

[0069] According to another aspect of the present disclosure, the aerosol generating device may further include a cartridge coupled to the body adjacent to the insertion space, the sensor being disposed between the insertion space and the cartridge, the induction sensor further including a first induction sensor including a first sensing coil and a second induction sensor including a second sensing coil disposed parallel to the first sensing coil, and the sensing electrode may be disposed between the first sensing coil and the second sensing coil.

[0070] According to another aspect of the present disclosure, the first sensing coil and the second sensing coil are each wound in a planar shape, and the spacing between the turns of the first sensing coil is greater than the spacing between the turns of the second sensing coil.

[0071] According to another aspect of the present disclosure, the first induction sensor senses changes in inductance of the insertion space via the first sensing coil, the capacitance sensor senses changes in capacitance of the insertion space via the sensing electrode, and the second induction sensor senses changes in inductance of the cartridge via the second sensing coil.

[0072] According to another aspect of the present disclosure, the first induction sensor senses changes in inductance of the cartridge via the first sensing coil, the capacitance sensor senses changes in capacitance of the cartridge via the sensing electrode, and the second induction sensor senses changes in inductance of the insertion space via the second sensing coil.

[0073] According to another aspect of the present disclosure, the sensing electrode and the sensing coil may have corresponding peripheral shapes.

[0074] The specific embodiments or other embodiments of the present disclosure described above are not mutually exclusive or distinct, and the structure or function of any or all elements of the embodiments of the present disclosure described above can be combined with other elements or combined with each other.

[0075] For example, configuration A described in one embodiment of the present disclosure and drawings and configuration B described in another embodiment of the present disclosure and drawings can be combined with each other. That is, even if a combination between configurations is not directly described, the combination is possible unless it is described that the combination is not possible.

[0076] While the embodiments have been described above in accordance with a number of exemplary embodiments, it should be understood that many other variations and embodiments are possible for those skilled in the art that fall within the scope of the principles of the present disclosure. More particularly, various modifications and variations are possible in the components and / or arrangements of the subject combinations within the scope of the present disclosure, the drawings, and the appended claims. In addition to the modifications and variations of the components and / or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. a body including an insertion space; a heater for heating the insertion space; a sensor disposed within the body; The sensor comprises an inductive sensor including a planar sensing coil wound outward from a center; a capacitance sensor including a sensing electrode and arranged adjacent to and parallel to the sensing coil and covering one side of the sensing coil.

2. the sensing coil and the sensing electrode face the insertion space, and the sensing coil is disposed between the insertion space and the sensing electrode; The capacitance sensor senses a change in capacitance of the insertion space, The aerosol generating device according to claim 1 , wherein the induction sensor senses a change in inductance of the insertion space.

3. The aerosol generating device according to claim 2 , wherein the sensing electrode shields the sensing coil from a magnetic field.

4. The aerosol generating device according to claim 2 , further comprising a shielding member disposed on an opposite side of the capacitance sensor from the induction sensor and covering one side of the capacitance sensor.

5. The cartridge further includes a cartridge coupled to the body adjacent to the insertion space, the sensor is disposed between the insertion space and the cartridge; the sensing coil faces one of the insertion space and the cartridge, and the sensing electrode faces the other of the insertion space and the cartridge; the inductive sensor senses a change in inductance; The aerosol generating device of claim 1 , wherein the capacitance sensor senses a change in capacitance.

6. the sensing coil is wound so as to electrically shield the sensing electrode from an electric field; The aerosol generating device according to claim 5 , wherein the sensing electrode magnetically shields the sensing coil from a magnetic field.

7. The cartridge further includes a cartridge coupled to the body adjacent to the insertion space, the sensor is disposed between the insertion space and the cartridge; The inductive sensor a first inductive sensor having a first sensing coil; a second inductive sensor including a second sensing coil disposed in parallel to the first sensing coil; The aerosol generating device according to claim 1 , wherein the sensing electrode is disposed between the first sensing coil and the second sensing coil.

8. The aerosol generating device of claim 7, wherein the first sensing coil and the second sensing coil are each wound in a plane, and the spacing between turns of the first sensing coil is greater than the spacing between turns of the second sensing coil.

9. the first induction sensor senses a change in inductance of the insertion space via the first sensing coil; the capacitance sensor senses a change in capacitance of the insertion space through the sensing electrode; The aerosol generating device according to claim 8 , wherein the second induction sensor senses a change in inductance of the cartridge via the second sensing coil.

10. the first induction sensor senses a change in inductance of the cartridge via the first sensing coil; the capacitance sensor senses a change in capacitance of the cartridge via the sensing electrode; The aerosol generating device according to claim 8 , wherein the second induction sensor senses a change in inductance of the insertion space via the second sensing coil.

11. The aerosol generating device according to claim 1 , wherein the sensing electrode and the sensing coil have corresponding peripheral shapes.

Images