Aerosol generating device

Abstract

An aerosol generating device is disclosed that may include a body including an insertion space, a sensor provided in the body and configured to detect an electromagnetic characteristic of the surroundings, an upper case detachably coupled to the body and configured to include an insertion opening corresponding to an opening of the insertion space, and a grounding substrate coupled to the upper case, extending along a periphery of the upper case, and electrically grounding the sensor.

Description

Technical Field

[0001] The present disclosure relates to an aerosol generating device.

Background Art

[0002] An aerosol generating device is for extracting a predetermined component from a medium or a substance through an aerosol. The medium can contain substances with various components. The substances contained in the medium can be flavor substances with various components. For example, the substances contained in the medium can include a nicotine component, a herb component, and / or a coffee component, etc. In recent years, many studies have been conducted on such aerosol generating devices.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present disclosure aims to solve the above-mentioned problems and other problems.

[0004] Another object of the present disclosure is to provide an aerosol generating device capable of reducing sensor noise and preventing malfunction.

[0005] Yet another object of the present disclosure is to provide an aerosol generating device ensuring structural safety.

[0006] Still another object of the present disclosure is to disperse heat generated by the device.

Means for Solving the Problems

[0007] According to one aspect of the present disclosure for achieving the above-mentioned objects, an aerosol generating device includes a body including an insertion space, a sensor provided on the body for sensing the surrounding electromagnetic characteristics, an upper case detachably coupled to the body and including an insertion port corresponding to an opening of the insertion space, and a grounding substrate coupled to the upper case, extending along the periphery of the upper case, and electrically grounding the sensor.

Advantages of the Invention

[0008] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device capable of reducing sensor noise and preventing malfunction.

[0009] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device with improved structural safety.

[0010] According to at least one of the embodiments of the present disclosure, heat generated in the device can be dissipated.

[0011] The applicable additional scope of the present disclosure will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present disclosure will be clearly understandable to those skilled in the art, so the detailed description and specific examples such as the preferred embodiments of the present disclosure should be understood as being given by way of illustration only.

[0012] The above and other objects, features and other features of the present disclosure will be clearly understandable from the following detailed description with reference to the accompanying drawings.

Brief Description of the Drawings

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DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. Even if the same or similar components are illustrated in different drawings, the same reference numerals will be assigned thereto, and duplicate descriptions thereof will be omitted.

[0015] The suffixes “module” and “part” for the components used in the following description are used only for the ease of description in the specification. “Module” and “part” do not have distinct meanings or roles from each other.

[0016] In addition, in the following description of the embodiments disclosed in this specification, if a detailed description of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. Also, the accompanying drawings are provided to facilitate understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the accompanying drawings. Therefore, the accompanying drawings should be construed to include all modifications, equivalents, and alternatives included in the spirit and scope of the present disclosure.

[0017] Terms including ordinal numbers such as first, second, etc. can 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 for the purpose of distinguishing one component from another.

[0018] When referring to a certain component being “connected” to another component, it can be understood that other components may exist in between. On the other hand, when referring to a certain component being “directly connected” to another component, it can be understood that no other components exist in between.

[0019] Singular expressions include plural expressions unless otherwise clearly indicated by the context.

[0020] Referring to FIGS. 1 and 2, the body 100 can include a lower body 110 and an upper body 120. The upper body 120 can be located above the lower body 110. The lower body 110 can extend vertically long. The body 100 can accommodate a configuration for driving the device inside. The upper body 120 can provide an insertion space 134 that is open upward. The insertion space 134 can be located inside the upper body 120. The insertion space 134 can extend vertically long. The insertion space 134 can be formed in a pipe 130 (see FIG. 3) located inside the upper body 120.

[0021] The upper case 200 can have a hollow shape with an open bottom. The upper body 120 can be inserted into the hollow of the upper case 200. The upper case 200 can be detachably coupled to the body 100. The upper case 200 can cover so as to surround the upper body 120. The side portion 211 of the upper case 200 can cover while surrounding the outer wall 121 of the upper body 120. The upper portion 212 of the upper case 200 can cover the upper portion 180 or the outer cover 180 of the upper body 120. When the upper case 200 is coupled to the body 100, the upper case 200 can cover the body 100 and the cartridge 300 together. The cartridge 300 can be disposed inside the upper case 200.

[0022] The insertion port 214 can be formed by the upper portion 212 of the upper case 200 being opened. The insertion port 214 can correspond to the opening of the insertion space 134. The cap 215 can be movably provided on the upper portion 212 of the upper case 200. The slide hole 213 can be on the upper portion 212 of the upper case 200 and can extend from the insertion port 214 to one side. The cap 215 can move along the slide hole 213. The cap 215 can open and close the insertion port 214 and the insertion space 134. The stick 400 can be inserted into the insertion space 134 through the insertion port 214. For example, the stick 400 can be a cigarette.

[0023] The outer wall 121 and the partition wall 125 can form the side portion of the upper body 120. The partition wall 125 can separate the cartridge coupling space 124a and the insertion space 134 (see FIG. 3). The seating portion 122 can extend from the lower portion of the partition wall 125 to one side. The extension portion 140 can extend from the upper portion of the partition wall 125 to one side.

[0024] The cartridge coupling space 124a can be formed on one side of the upper body 120. The cartridge coupling space 124a can be defined by the seating portion 122, the partition wall 125, and the extension portion 140 of the upper body 120. The bottom of the cartridge coupling space 124a can be covered by the seating portion 122. One side of the cartridge coupling space 124a can be covered by the partition wall 125 of the upper body 120. The upper side of the cartridge coupling space 124a can be covered by the extension portion 140. The cartridge coupling space 124a can be open to the outside between the seating portion 122 and the extension portion 140.

[0025] The cartridge 300 can be coupled to one side of the upper body 120. The cartridge 300 can be inserted into the cartridge coupling space 124a. The bottom of the cartridge 300 can be seated on the seating portion 122. One side of the cartridge 300 can face the partition wall 125 of the upper body 120. The other side of the cartridge 300 can be exposed to the outside of the upper body 120. The upper side of the cartridge 300 can be covered by the extension portion 140.

[0026] The cartridge 300 can store liquid inside. The cartridge 300 can be electrically connected to the body 100 through the cartridge terminal 128 exposed from the seating portion 122. The cartridge 300 can receive power and generate an aerosol inside.

[0027] Referring to FIGS. 1 to 3, the cartridge 300 can include a first chamber C1. The first chamber C1 can store a liquid. The cartridge 300 can include a second chamber C2. The second chamber C2 can be separated from the first chamber C1. The second chamber C2 can be disposed below the first chamber C1.

[0028] The wick 311 can be disposed in the second chamber C2. The wick 311 can be connected to the first chamber C1. The wick 311 can receive the liquid from the first chamber C1. The heater 312 can be disposed in the second chamber C2. The heater 312 can be wound around the wick 311. The heater 312 can be electrically connected to the cartridge terminal 128 to receive power. The heater 312 can heat the wick 311. When the heater 312 heats the wick 311 receiving the liquid, aerosol can be generated in the second chamber C2.

[0029] The cartridge 300 can include a first inlet 3011. The first inlet 3011 can be formed at the upper end of the cartridge 300. The first inlet 3011 can communicate with the outside of the cartridge 300. The cartridge 300 can include a second inlet 3012. The second inlet 3012 can be formed on one side of the second chamber C2 and can communicate with the second chamber C2. The inflow path 302 can connect the first inlet 3011 and the second inlet 3012. The inflow path 302 can be located between the first inlet 3011 and the second inlet 3012. The inflow path 302 can extend longitudinally in the vertical direction from the inside of the cartridge 300. The cartridge 300 can include an outlet 303. The outlet 303 can be formed in the second chamber C2 and can communicate with the outside of the cartridge 300. The outlet 303 can be located on the side opposite to the second inlet 3012 with respect to the second chamber C2. When the cartridge 300 is coupled to the upper body 120, the outlet 303 can be connected to the connecting flow path 133.

[0030] The user can inhale air by holding the stick 400 inserted into the insertion space 134 in the mouth. With the upper case 200 coupled to the body 100, air can flow into the first inlet 3011 through the opening 201 formed in the upper case 200. Air can flow from the outside of the cartridge 300 into the inside of the cartridge 300 through the first inlet 3011. The air flowing into the first inlet 3011 can sequentially pass through the inflow path 302 and the second inlet 3012 and flow into the second chamber C2. The air flowing into the second chamber C2 can be discharged to the outside of the cartridge 300 through the discharge port 303 together with the aerosol generated around the core 311. The air discharged through the discharge port 303 can be supplied to the insertion space 134 and the stick 400 inserted into the insertion space 134 through the connection flow path 133.

[0031] Referring to FIGS. 3 and 4, the upper body 120 can include an outer wall 121 and a partition wall 125. The outer wall 121 and the partition wall 125 can be connected to each other. The pipe installation space 124 can be surrounded by the outer wall 121 and the partition wall 125. The pipe installation space 124 can be open upward. The pipe installation space 124 can extend vertically.

[0032] The partition wall 125 can extend vertically between the pipe 130 and the cartridge coupling space 124a. The partition wall 125 can separate the pipe installation space 124 and the cartridge coupling space 124a. One side of the partition wall 125 can face the pipe installation space 124, and the other side of the partition wall 125 can face the cartridge coupling space 124a. The connection port 123 can be formed by the lower part of the partition wall 125 being open. The connection port 123 can communicate with the pipe installation space 124. The partition wall 125 can be formed between the insertion space 134 and the cartridge coupling space 124a.

[0033] The pipe 130 can be formed to be long in the vertical direction. The pipe 130 can be hollow. The insertion space 134 can be formed inside the pipe 130. The insertion space 134 can be open upward. The insertion space 134 can extend vertically. The connection channel 133 can be formed inside the pipe 130. The connection channel 133 can be formed below the insertion space 134. One end of the connection channel 133 can communicate with the outside of the pipe 130, and the other end can communicate with the insertion space 134. The connection channel 133 can bend from the lower part of the insertion space 134 to one side.

[0034] Referring to FIGS. 4 and 5, the pipe 130 can be inserted into the pipe installation space 124. The pipe 130 can be surrounded by the outer wall 121 and the partition wall 125. The connection channel 133 can communicate with the connection port 123.

[0035] The partition wall 125 can include a first partition portion 1251 and a second partition portion 1252. The first partition portion 1251 and the second partition portion 1252 can be formed parallel to each other. The first partition portion 1251 can extend vertically and long. The second partition portion 1252 can extend vertically and long. The first partition portion 1251 can face one side of the pipe installation space 124 or the pipe 130. The second partition portion 1252 can face the cartridge coupling space 124a.

[0036] The partition wall 125 can provide a first space S1 inside. The first space S1 can be formed between the first partition portion 1251 and the second partition portion 1252. The first space S1 can extend vertically and long. The first space S1 can be open upward. One side and the other side of the first space S1 can be covered by the first partition portion 1251 and the second partition portion 1252, respectively. The first partition portion 1251 can separate the pipe installation space 124 and the first space S1. The second partition portion 1252 can separate the cartridge coupling space 124a and the second space S2.

[0037] The bracket 127 can be located in or fixed to the first space S1. The bracket 127 can extend vertically and long. The bracket 127 can support or fix the second substrate 162 inserted into the first space S1.

[0038] One side of the connector 126 can be disposed in the first space S1, and the other side of the connector 126 can be disposed in the second space S2. The connector 126 can bend and extend from the first space S1 to the second space S2. One end of the first connector 126 can be connected to the first substrate 129 installed at the lower part of the upper body 120. The first substrate 129 can be directly or indirectly connected to a power source, a memory, a control unit, a sensor, etc. disposed inside the body 100, or a memory, a control unit, a sensor, etc. can be mounted on the first substrate 129. The first connector 126 can have conductivity.

[0039] The upper body 120 can include an extension part 140. The extension part 140 can extend from the upper end of the second partition part 1252 to one side. The extension part 140 can extend in a direction opposite to the pipe installation space 124 or the pipe 130 with respect to the partition part 125. The extension part 140 can extend in a direction intersecting the longitudinal direction of the second partition part 1252. The extension part 140 can cover the upper part of the cartridge coupling space 124a or the upper part of the cartridge 300. The second space S2 can be formed inside the extension part 140. The second space S2 can be defined as a space formed between the extension part 140 and the inner cover 170 (see FIG. 13). The second space S2 and the first space S1 can be connected.

[0040] The extension part 140 can include an extension plate 141. The extension plate 141 can extend from the second partition part 1252 to one side. The extension plate 141 can have a thin plate shape. The extension plate 141 can cover the lower part of the second space S2.

[0041] The extension part 140 can include a rim part 142. The rim part 142 can extend in the circumferential direction along the upper part of the outer wall 121 of the upper body 120 and the edge of the extension plate 141. The rim part 142 can include a part protruding upward from the edge of the extension plate 141. The rim part 142 can cover the periphery of the second space S2.

[0042] The sealing member 150 can be disposed above the extension plate 141. The sealing member 150 can be disposed in the second space S2. One side of the sealing member 150 can cover the upper end of the first partition portion 1251. The other side of the sealing member 150 can cover at least a part of the extension plate 141. The sealing member 150 can include a substrate insertion hole 154 and a column insertion hole 157. The substrate insertion hole 154 can communicate with the opening of the first space S1. The sealing member 150 can have elasticity. For example, the sealing member 150 can be manufactured from a rubber or silicon material.

[0043] The sensor assembly 160 can be disposed in the first space S1 and the second space S2. One side of the sensor assembly 160 can pass through the first substrate insertion hole 154 and be inserted into the first space S1. The other side of the sensor assembly 160 can be disposed in the second space S2.

[0044] The covers 170, 180 can cover the first space S1. The covers 170, 180 can cover the second space S2. The sealing member 150 can be in close contact between the covers 170, 180 and the partition 125 to seal one side of the first space S1 and the second space S1 from the insertion space 134. The sealing member 150 can be in close contact between the covers 170, 180 and the extension portion 140 to seal the other side of the second space S2.

[0045] The covers 170, 180 can include an inner cover 170. The inner cover 170 can be disposed above the sealing member 150. The inner cover 170 can cover the upper part of the sealing member 150 and the upper part of the sensor assembly 160. The inner cover 170 can be coupled or fixed to the extension portion 140 and the pipe 130 via screws 1771, 1772. The inner cover 170 can press the sealing member 150 downward via the screws 1771, 1772. The inner cover 170 can cover the upper part of the second space S2 (see FIG. 13). The inner cover 170 can cover the periphery of the second space S2 together with the rim portion 142.

[0046] The covers 170 and 180 can include the outer cover 180. The outer cover 180 can be disposed above the inner cover 170. The outer cover 180 can cover the upper portion of the inner cover 170 and the upper portion of the pipe 130. The outer cover 180 can be provided with a cover hole 184. The cover hole 184 can correspond to the opening of the insertion space 134. The outer cover 180 can be assembled or coupled to the upper body 120 and the extension part 140.

[0047] Referring to FIG. 6, the sensor assembly 160 can include a first sensor 161. The sensor assembly 160 can include a second substrate 162. The sensor assembly 160 can include a third substrate 163. The sensor assembly 160 can include a second connector 166. The sensor assembly 160 can include a first terminal 168.

[0048] The first sensor 161 can sense the flow of air. The first sensor 161 can sense the flow of air around the first inlet 3011 (see FIG. 3) of the cartridge 300. The first sensor 161 can be an air flow rate sensor 161.

[0049] The second substrate 162 can be an RPCB (Rigid Printed Circuit Board), and the third substrate 163 can be an FPCB (Flexible Printed Circuit Board). The second substrate 162 and the third substrate 163 can be connected to form an RFPCB (Rigid Flexible Printed Circuit Board). The second substrate 162 can have a plate shape extending in the vertical direction. The third substrate 163 can be connected to the upper end of the second substrate 162. The third substrate 163 can be bent from the second substrate 162 toward the second space S2. One end of the third substrate 163 can be connected to the first sensor 161. The other end of the third substrate 163 can be connected to the second substrate 162.

[0050] On the second substrate 162, an electrode pattern for sensing various information can be formed. The second substrate 162 can be referred to as the second sensor 162. The second sensor 162 can sense changes in the surrounding electromagnetic characteristics. The second sensor 162 can sense various information based on changes in permittivity.

[0051] For example, the second sensor 162 can sense information about whether the stick 400 is inserted into the insertion space 134, information about the humidity of the stick 400, information about the type of the stick 400, information about whether it is a product - specific stick 400, information about whether the cartridge 300 is attached to the body 100, information about the type of the attached cartridge 300, information about the remaining amount of the liquid stored in the cartridge 300, and so on. The second sensor 162 can be a capacitance sensor 162.

[0052] The second connector 166 can be mounted on the third substrate 163. The second connector 166 can have conductivity. The second connector 166 can be in contact with the first connector 126 and be electrically connected. Thus, the first substrate 129 (see FIG. 5), the second substrate 162, the third substrate 163, and the first sensor 161 can exchange electrical signals with each other.

[0053] The first terminal 168 can be mounted on the third substrate 163. The first terminal 168 can be a clip - type or pogo - pin - type conductive terminal. The first terminal 168 can face upward.

[0054] Referring to FIGS. 6 - 8, the first sensing hole 144 can be formed by the opening of the extension plate 141. The first sensing hole 144 can open toward the cartridge coupling space 124a. The sealing coupling protrusion 145 can protrude upward from the extension plate 141. The sealing coupling protrusion 145 can have a protrusion shape. The sealing coupling protrusion 145 can have a non - circular cross - section. The sealing coupling protrusion 145 can be located around the first sensing hole 144.

[0055] Column 146 can project upward from the extension plate 141. Column 146 can have a cylindrical shape. Column 146 can be provided with screw fastening holes 147 to which screws 1771 and 1772 (see FIG. 9) can be coupled inside. Column 146 can be one of a plurality of columns. The plurality of columns 146 can be arranged symmetrically with respect to each other.

[0056] The sealing member 150 can be coupled to the extension portion 140. The sealing member 150 can cover the extension plate 141. The edge of the sealing member 150 can be in close contact with the rim portion 142. The periphery of the sensor assembly 160 can be sealed by the sealing member 150.

[0057] The sealing member 150 can include a first sealing portion 151 and a second sealing portion 152. The first sealing portion 151 can have a bar shape that extends long in one direction. The second sealing portion 152 can have a plate shape. The first sealing portion 151 and the second sealing portion 152 can be spaced apart from each other.

[0058] The third sealing portion 153 can be located between the first sealing portion 151 and the second sealing portion 152. One end of the third sealing portion 153 can be connected to the first sealing portion 151, and the other end can be connected to the second sealing portion 152. The third sealing portion 153 can connect the first sealing portion 151 and the second sealing portion 152. The third sealing portion 153 can extend in a direction intersecting the longitudinal direction of the first sealing portion 151. The third sealing portion 153 can extend from the first sealing portion 151 toward the second sealing portion 152. The third sealing portion 153 can have a bar shape. The third sealing portion 153 can be provided as a pair. One of the pair of third sealing portions 153 can be connected to one end of the first sealing portion 151 and one side of the second sealing portion 152, and the other of the pair of third sealing portions 153 can be connected to the other end of the first sealing portion 151 and the other side of the second sealing portion 152.

[0059] The substrate insertion hole 154 can be formed by the opening of the sealing member 150. The substrate insertion hole 154 can be defined as the space formed between the first sealing portion 151, the second sealing portion 152, and the pair of third sealing portions 153. The substrate insertion hole 154 can be open vertically.

[0060] The sealing coupling hole 155 can be formed by the opening of the second sealing portion 152. The sealing coupling hole 155 can correspond to the sealing coupling protrusion 145. The sealing coupling hole 155 can have a non-circular cross-section. The protrusion guide surface 1551 can be formed around the lower part of the sealing coupling hole 155. The protrusion guide surface 1551 can be formed to incline upward from the lower surface of the second sealing portion 152 toward the insertion hole 155. The protrusion guide surface 1551 can extend around the insertion hole 155. Thus, the sealing coupling protrusion 145 can be guided by the protrusion guide surface 1551 into the sealing coupling hole 155 and inserted and coupled to the sealing coupling hole 155.

[0061] The sensor housing portion 156 can be formed in the second sealing portion 152 around the sealing coupling hole 155. The sensor housing portion 156 can have a shape protruding upward from the second sealing portion 152. The sensor housing portion 156 can form an accommodation groove 1565 inside. The accommodation groove 1565 can be open upward. The lower part of the accommodation groove 1565 can be covered by the housing portion bottom 1561 and can communicate with the second sensing hole 1564 formed by the opening of the housing portion bottom 1561. The second sensing hole 1564 can correspond to the first sensing hole 144. The side portion of the accommodation groove 1565 can be covered by the housing portion side wall 1562. The housing portion side wall 1562 can extend around the accommodation groove 1565. The housing portion side wall 1562 can be formed to incline such that the sensing groove 1565 gradually narrows from the upper side to the lower side.

[0062] The column insertion hole 157 can be formed by the opening of the second sealing portion 152. The column insertion hole 157 can correspond to the column 146. The column insertion hole 157 can have a circular shape. The column insertion hole 157 can be provided in plurality. The column 146 can be inserted into the column insertion hole 157 and coupled thereto.

[0063] The inner surface 1511 of the first sealing portion 151 can be the surface facing the substrate insertion hole 154. The inner surface 1511 can face in a direction intersecting the upper surface 1512 of the first sealing portion 151. The inner surface 1511 can be closer to the substrate insertion hole 154 than the upper surface 1512.

[0064] The first sealing portion 151 can include a substrate guide surface 1513. The substrate guide surface 1513 can be formed between the inner surface 1511 and the upper surface 1512. The substrate guide surface 1513 can extend in the longitudinal direction of the first sealing portion 151. The substrate guide surface 1513 can be inclined downward from the upper surface 1512 toward the inner surface 1511. The substrate guide surface 1513 can face the substrate insertion hole 154. The substrate guide surface 1513 can be inclined downward such that the substrate insertion hole 154 gradually narrows downward. Thus, even when the second substrate 162 contacts the first sealing portion 151, it can be guided by the substrate guide surface 1513 so as to penetrate the substrate insertion hole 154.

[0065] The coupling groove 1515 can be formed on the lower surface of the first sealing portion 151. The coupling groove 1515 can open downward. The coupling groove 1515 can extend long in the longitudinal direction of the first sealing portion 151. The coupling groove 1515 can correspond to the first partition portion 1251. The first partition portion 1251 can be inserted into and coupled to the coupling groove 1515.

[0066] Referring to FIGS. 6 to 9, the sealing member 150 can be assembled or coupled to the extension portion 140. When the sealing member 150 is assembled to the extension portion 140, the first sealing portion 151 can surround and closely adhere to the upper end of the first partition portion 1251. The second sealing portion 152 can cover and closely adhere to the extension plate 141. The periphery of the sealing member 150 can closely adhere to the inner peripheral surface of the rim portion 142.

[0067] The sealing coupling protrusion 145 can be inserted into and coupled to the sealing coupling hole 155. The second sensing hole 1564 is positioned to correspond to the first sensing hole 144 and can communicate with each other. The column 146 can be inserted into and coupled to the column insertion hole 157. The screw fastening hole 147 formed inside the column 146 can penetrate the column insertion hole 157 and open upward. The substrate insertion hole 154 is positioned above the first space S1 and can communicate with the first space S1.

[0068] Therefore, the sealing member 150 can be coupled to the extension portion 140 and stably fixed.

[0069] The first sensor 161 can be received in the receiving groove 1565 and closely adhere to the sensor receiving portion 156. The first sensor 161 can face downward within the sensor receiving portion 156. The first sensor 161 can be connected to the outside through the first sensing hole 144 and the second sensing hole 1564. The second substrate 162 (or the second sensor 162) can pass through the substrate insertion hole 154 and be inserted into the first space S1.

[0070] The first connector 126 can be exposed from the first space S1 to the extension part 140. The first connector 126 can be exposed upward through the substrate insertion hole 154 of the sealing member 150 coupled to the extension part 140. The second connector 166 mounted on the third substrate 163 can be in contact with the first connector 126 exposed from the substrate insertion hole 154 and be electrically connected. The sensor assembly 160 can be fixed to the extension part 140. The sensor assembly 160 can be disposed inside the periphery of the sealing member 150.

[0071] Referring to FIGS. 9 to 11, the first screw fastening hole 137 can be formed by the upper part of the pipe 130 opening upward. Threads can be formed on the inner peripheral surface of the first screw fastening hole 137. The first screw fastening hole 137 can be formed as a plurality. The second screw fastening hole 147 can be formed inside the column 146. Threads can be formed on the inner peripheral surface of the second screw fastening hole 147. The second screw fastening hole 147 can be formed as a plurality.

[0072] The inner cover 170 can include an inner plate 171. The inner plate 171 can cover the sealing member 150 and the sensor assembly 160. The inner plate 171 can cover at least a part of the upper part of the pipe 130. The inner plate 171 can support the sealing member 150, the sensor assembly 160, and the pipe 130 and prevent their separation.

[0073] The screw through holes 1741 and 1742 can be formed by the inner plate 171 opening. The screws 1771 and 1772 can pass through the screw through holes 1741 and 1742 and be fastened to the screw fastening holes 137 and 147 to couple the inner plate 171 and the upper body 120. The screws 1771 and 1772 can press the inner plate 171 downward by screwing into the screw fastening holes 137 and 147. The inner plate 171 can be disposed inside the rim part 142.

[0074] The first screw through-hole 1741 may be formed on one side of the inner plate 171. The first screw through-hole 1741 may be formed as a plurality. Each of the plurality of first screw through-holes 1741 may be formed at a position corresponding to each of the plurality of first screw fastening holes 137. The first screw 1771 can pass through the first screw through-hole 1471 and be screwed into the first screw fastening hole 137.

[0075] The second screw through-hole 1742 may be formed on the other side of the inner plate 171. The second screw through-hole 1742 may be formed as a plurality. Each of the plurality of second screw through-holes 1742 may be formed at a position corresponding to each of the plurality of second screw fastening holes 147. The second screw 1772 can pass through the second screw through-hole 1472 and be screwed into the second screw fastening hole 147.

[0076] The pressing projection 175 may protrude downward from the lower surface of the inner plate 171. The pressing projection 175 may extend along the edge of the sealing member 150 and the periphery of the sensor housing portion 156. The pressing projection 175 can press the sealing member 150.

[0077] The pressing projection 175 may include a first pressing portion 1751. The first pressing portion 1751 may be formed at a position corresponding to the first sealing portion 151. The first pressing portion 1751 may extend long along the first sealing portion 151. The width of the first pressing portion 1751 may be smaller than the width of the upper surface of the first sealing portion 151. The first pressing portion 1571 can press the upper surface of the first sealing portion 151 downward.

[0078] The pressing projection 175 may include a second pressing portion 1752. The second pressing portion 1752 may extend along the periphery of the sensor housing portion 156 formed in the second sealing portion 152. The second pressing portion 1752 can press the upper surface of the second sealing portion 152 formed along the periphery of the sensor housing portion 156 downward.

[0079] The pressing projection 175 can include a third pressing portion 1753. The third pressing portion 1753 can connect the first pressing portion 1751 and the second pressing portion 1752. Each of the pair of third pressing portions 1753 can be formed at a position corresponding to each of the pair of third sealing portions 153. The third pressing portion 1753 can extend long along the third sealing portion 153. The width of the third pressing portion 1753 may be smaller than the width of the upper surface of the third sealing portion 153. The third pressing portion 1753 can press the upper surface of the third sealing portion 153 downward.

[0080] Therefore, the inner plate 171 can be in close contact with the sealing member 150 while pressing the sealing member 150 downward. Also, the first and second spaces S1, S2 can be sealed to prevent foreign substances such as liquid from flowing into the first and second spaces S1, S2, and the connector 126 and the sensor assembly 160 can be protected from external foreign substances.

[0081] Also, since one side of the inner cover 170 is coupled to the extension portion 140 and the other side of the inner cover 170 is coupled to the pipe 130, the upper portion of the pipe 130 inserted into the upper body 120 can be supported, and the pipe 130 can be stably fixed. Also, the sealing member 150 can be stably fixed.

[0082] Referring to FIGS. 9 to 12, the outer cover 180 can be disposed on the upper portion of the upper body 120 and the upper portion of the extension portion 140. The outer cover 180 can be coupled to the upper body 120 and / or the extension portion 140. The outer cover 180 can be disposed inside the rim portion 142. The outer cover 180 can cover or block the gap between the components inside the rim portion 142.

[0083] The outer cover 180 can include an outer plate 181. The outer plate 181 can be disposed inside the rim portion 142 to cover the inner cover 170 and the pipe 130. The periphery of the outer plate 181 can contact or be in close contact with the inner peripheral surface of the rim portion 142. The cover hole 184 can be formed by opening one side of the outer plate 181 vertically. The cover hole 184 can correspond to the opening of the insertion space 134.

[0084] The cover coupling groove 185 can be formed on the lower side of the outer plate 181. The cover coupling groove 185 can be provided in plurality. The cover coupling groove 185 can be located adjacent to the edge of the outer plate 181. The cover coupling groove 185 can open in a side direction intersecting the vertical direction.

[0085] The hook 186 can protrude downward from the outer plate 181. The hook 186 can be provided in plurality. The hook 186 can be located adjacent to the edge of the outer plate 181.

[0086] The cover coupling protrusion 125 can protrude inward from the inner peripheral surface of the rim portion 142 around the upper part of the pipe 130. The cover coupling protrusion 125 can be formed in plurality. The cover coupling protrusion 125 can correspond to the cover coupling groove 185. Thus, by inserting the cover coupling protrusion 125 into the cover coupling groove 185, one side of the outer cover 180 and the upper body 120 can be coupled to each other.

[0087] The hook engaging groove 176 can be formed on one side of the inner plate 171. The hook engaging groove 176 can open in a side direction. The hook 186 can be inserted into the hook engaging groove 176 and can be engaged with the inner plate 171. Thus, the other side of the outer cover 180 and the inner cover 170 can be coupled to each other, and the other side of the outer cover 180 can be fixed to the extension portion 140 side.

[0088] The upper body 120 can block the gap between the pipe 130 and the outer wall 121 or between the pipe 130 and the rim portion 142. The upper body 120 can block the gap between the pipe 130 and the partition wall 125. The upper body 120 can block the gap between the pipe 130 and the inner plate 171. The upper body 120 can block the gap between the inner plate 171 and the rim portion 142. The upper body 120 can block the gap between the sealing member 150 and the rim portion 142.

[0089] Therefore, it is possible to form the upper appearance of the upper body 120 and the extension portion and prevent foreign matter from flowing into the gap between the components from the outside.

[0090] The second terminal 178 can be coupled to the inner plate 171. The inner plate 171 can be formed by injection molding on the second terminal 178. The upper end of the second terminal 178 can protrude and be exposed above the inner plate 171. The lower end of the second terminal 178 can protrude and be exposed below the inner plate 171. The second terminal 178 can have conductivity. The lower portion of the second terminal 178 can be in contact with and electrically connected to the first terminal 168 coupled to the second connector 166.

[0091] The first terminal hole 188 can be formed by opening one side of the outer plate 181. The first terminal hole 188 can correspond to the second terminal 178. The upper end of the second terminal 178 can be exposed above the outer cover 180 through the first terminal hole 188.

[0092] Referring to FIGS. 3 and 13, the sensor assembly 160 can be disposed in a space separated from the pipe 130 and the cartridge 300. The sensor assembly 160 can be disposed in the first space S1 and the second space S2. The second substrate 162 (or the second sensor 162) can be disposed in the first space S1. The first sensor 161 can be disposed in the second space S2. The third substrate 163 can be disposed in the second space S2. The first connector 126 can be exposed from the first space S1 to the second space S2 (see FIG. 6). The second connector 166 can be disposed in the second space S2. The second connector 166 can be connected to the first connector 126 in the second space S2.

[0093] The first sealing portion 151 can be disposed between the first partition portion 1251 and the inner plate 171. The first sealing portion 151 can surround and be in close contact with the upper end portion of the first partition portion 1251. The first sealing portion 151 can be in close contact with the lower end of the inner plate 171.

[0094] The sensor housing portion 156 of the second sealing portion 152 can seal the periphery of the first sensing hole 144. The sensor housing portion 156 can be in close contact with the extension plate 141 around the first sensing hole 144. The second sensing hole 1564 formed in the sensor housing portion 156 can communicate with the first sensing hole 144. The sensor housing portion 156 can surround and be in close contact with the first sensor 161.

[0095] Therefore, it is possible to prevent foreign matter or aerosol discharged from the periphery of the opening of the pipe 130 from flowing into the first space S1. Also, it is possible to prevent foreign matter from flowing into the second space S2 through the first sensing hole 144. Also, it is possible to prevent malfunctions of the substrate and the sensor.

[0096] Referring to FIG. 14, the upper case 200 can include the outer case 210. The upper case 200 can include the inner case 220. The upper case 200 can include the grounding substrate 230.

[0097] The outer case 210 can form the outer shape of the upper case 200. The outer case 210 may have a hollow shape with an open bottom. The outer case 210 can include a side wall 211 that forms the periphery of the hollow and an upper wall 212 that covers the upper part of the hollow.

[0098] The outer window 216 can be formed in the side wall 211 of the outer case 210. The outer window 216 can extend longitudinally in the vertical direction. The outer window 216 can be formed at a position corresponding to the first chamber C2 of the cartridge 300. The first outer insertion port 214 and the slide hole 213 can be formed in the upper wall 212. The cap 215 for opening and closing the first insertion port 214 can be installed on the upper wall 212 of the outer case 210.

[0099] The inner case 220 can be inserted into and coupled to the hollow of the outer case 210. The inner case 220 can surround the hollow of the upper case 200. The inner case 220 may have a hollow shape with an open bottom. The inner case 220 can include a side wall 221 that forms the periphery of the hollow and an upper wall 222 that covers the upper part of the hollow.

[0100] The inner window 226 can be formed in the side wall 221 of the inner case 220. The inner window 226 can extend longitudinally in the vertical direction. The inner window 226 can correspond to the outer window 216. The second insertion port 224 can be formed by opening the upper wall 222 of the inner case 220. The second insertion port 224 can correspond to the first insertion port 214. The rail 223 can be on the upper wall 222 of the inner case 220 and can extend longitudinally in the direction in which the slide hole 213 extends. The rail 223 can support the lower part of the cap 215 and guide the cap 215 to move along the slide hole 213.

[0101] The ground substrate 230 can extend along the periphery of the side wall 221 of the inner case 220 to form a perimeter. The ground substrate 230 can surround the outside of the side wall 221 of the inner case 220. The ground substrate 230 can be disposed between the inner case 220 and the outer case 210. The ground substrate 230 can ground the second sensor 162 (see FIG. 6).

[0102] The cut-out space 236 can be formed by cutting the ground substrate 230. The cut-out space 236 can be formed at a position corresponding to the inner window 226 and the outer window 216. The size of the cut-out space 236 is larger than that of the inner window 226 and the outer window 216, and the ground substrate 230 does not have to cover the inner window 226 and the outer window 216.

[0103] Referring to FIG. 15, the ground substrate 230 can bend to form a space 234 inside. The ground substrate 230 can be flexible. The ground substrate 230 can be an FPCB (Flexible Printed Circuit Board). The sizes of the gap 237 and the space 234 formed between both ends of the ground substrate 230 can vary.

[0104] The ground substrate 230 can include a connecting portion 232. The connecting portion 232 can be formed at the upper end of the ground substrate 230. The connecting portion 232 can be formed by bending from the upper end on one side of the ground substrate 230 toward the inside of the ground substrate 230 toward the space 234. The connecting portion 232 can bend in the inner thickness direction of the ground substrate 230. The connecting portion 232 can have conductivity. The third terminal 238 can be attached to the connecting portion 232. The third terminal 238 can extend downward from the lower surface of the connecting portion 232. The third terminal 238 can be a conductive terminal of a clip type or a pogo pin type (see FIG. 22). The third terminal 238 can be electrically connected to the ground substrate 230.

[0105] Referring to FIG. 16, the second terminal hole 228 can be formed by opening the upper wall 222 of the inner case 220 vertically on one side. The second terminal hole 228 can correspond to the third terminal 238. The second terminal hole 228 can be formed adjacent to the edge of the upper wall 222. The engaging projection 227 can project upward from the upper wall 222 to the upper side of the second terminal hole 228.

[0106] The ribs 2231 and 2232 can project outward in the thickness direction from the side wall 221 of the inner case 220. The ribs 2231 and 2232 can extend along the periphery of the side wall 221 to form a perimeter.

[0107] The first rib 2231 can be adjacent to the upper wall 222 of the inner case 220. The first rib 2231 can be formed at the upper end of the inner case 220. The first rib 2231 can project from the side wall 221 to form a first locking step 2231a on the lower side.

[0108] The second rib 2232 can be spaced downward from the first rib 2231. The second rib 2232 can be formed at the lower end of the inner case 220. The second rib 2232 can project from the side wall 221 to form a second locking step 2232a on the upper side. The coupling projection 225 can project from the second rib 2232. A plurality of the coupling projections 225 can be arranged along the circumferential direction of the second rib 2232.

[0109] Referring to FIGS. 17 to 19, the grounding substrate 230 can be coupled to the inner case 220 to cover the side wall 221 of the inner case 220. The cutout space 236 can correspond to the inner window 226.

[0110] When the grounding substrate 230 is coupled to the inner case 220, the connecting portion 232 above the third terminal 238 can be inserted into the second terminal hole 228 to cover the second terminal hole 228. The third terminal 238 can be exposed downward through the second terminal hole 228. Therefore, the third terminal 238 can be exposed toward the hollow 204 (see FIG. 20) inside the inner case 220.

[0111] The engaging protrusion 227 can be arranged above the connecting portion 232. The upper surface of the connecting portion 232 can bear on the engaging protrusion 227. The engaging protrusion 227 can limit the vertical movement of the connecting portion 232. Thus, it can prevent the connecting portion 232 and the third terminal 238 from disengaging upward from the second terminal hole 228, and can fix the positions of the connecting portion 232 and the third terminal 238.

[0112] The grounding substrate 230 can be arranged between the first rib 2231 and the second rib 2232. The upper end of the grounding substrate 230 can be located below the first rib 2231. The upper end of the grounding substrate 230 can be supported by the first locking step 2231a of the first rib 2231. The lower end of the grounding substrate 230 can be located above the second rib 2232. The lower end of the grounding substrate 230 can be supported by the second locking step 2232a of the second rib 2232.

[0113] The inner case 220 and the grounding substrate 230 can be inserted into the hollow of the outer case 210. The inner case 220 and the outer case 210 can be coupled.

[0114] By inserting the coupling protrusion 225 into the groove formed inside the outer case 210, the side wall 221 of the inner case 220 and the side wall 211 of the outer case 210 can be coupled in a snap-fit manner. The upper wall 222 of the inner case 220 can be coupled to the upper wall 212 of the outer case 210. The first insertion port 214 and the second insertion port 224 can correspond to each other. The inner window 226 and the outer window 216 can correspond to each other.

[0115] The periphery of the grounding substrate 230 can be disposed between the side wall 211 of the outer case 210 and the side wall 221 of the inner case 220. The side wall 211 of the outer case 210 can cover the outer peripheral surface of the grounding substrate 230. The side wall 221 of the inner case 220 can cover the inner peripheral surface of the grounding substrate 230. The ribs 2231 and 2232 can contact the side wall 211 of the outer case 210 to block the space through which the upper and lower ends of the grounding substrate 230 can move. The connecting portion 232 can be disposed between the upper wall 222 of the inner case 220 and the lower wall 212 of the outer case 210.

[0116] Therefore, the position of the grounding substrate 230 can be fixed, and the grounding substrate 230 can be prevented from detaching from the inner case 220.

[0117] Referring to FIGS. 20 to 22, the third terminal 238 can be exposed through the hollow 204 of the upper case 200. The third terminal 238 can face the hollow 204 from inside the upper case 200. The third terminal 238 can be exposed through the hollow 204 at the upper part of the upper case 200 and can face downward. The third terminal 238 can protrude from the inner case 220 into the hollow 204. The third terminal 238 can be a clip type or a pogo pin type conductive terminal.

[0118] The upper case 200 can be detachably coupled or attached to the upper body 120. When the upper case 200 is separated from the upper body 120, the third terminal 238 can be detached from the second terminal 178 and can be electrically disconnected. When the upper case 200 is attached to the upper body 120, the upper case 200 can cover so as to surround the upper body 120. The grounding substrate 230 can cover so as to surround the upper body 120. The grounding substrate 230 can surround the second sensor 162 (see FIG. 6). When the upper case 200 is attached to the upper body 120, the third terminal 238 can contact the upper end of the second terminal 178 and can be electrically connected. The third terminal 238 can be electrically connected to the first terminal 168.

[0119] Therefore, when the upper case 200 is coupled to the upper body 120, the ground substrate 230 and the second sensor 162 are connected to each other, and the second sensor 162 can be grounded through the ground substrate 230.

[0120] Also, when the second sensor 162 operates, it is possible to prevent the sensing noise of the second sensor 162 generated by causing a change in the dielectric constant in the second sensor 162 by the body of the user contacting the aerosol generating device or the like. For example, since the ground substrate 230 connected to the second sensor 162 prevents noise generated around the second sensor 162 from outside the upper case 200, the accuracy can be improved when sensing information about the stick or the remaining amount of the liquid stored in the cartridge.

[0121] The windows 216 and 226 are formed at positions corresponding to the first chamber C1 and may extend in the vertical direction along the height of the first chamber C1. Through the windows 216 and 226 formed in the upper case 200 of the first chamber C1, the capacity or state of the liquid stored in the first chamber C1 of the cartridge 300 can be visually confirmed.

[0122] Referring to FIGS. 1 to 22, an aerosol generating device according to one aspect of the present disclosure may include a body including an insertion space, a sensor provided on the body for sensing ambient electromagnetic characteristics, an upper case detachably coupled to the body and including an insertion port corresponding to an opening of the insertion space, and a ground substrate coupled to the upper case and extending along the periphery of the upper case for electrically grounding the sensor.

[0123] According to another aspect of the present disclosure, the aerosol generating device may include a second terminal connected to the sensor and exposed from the body, and a third terminal connected to the ground substrate and exposed inside the upper case and provided on the upper case so as to contact the second terminal when the upper case is coupled to the body.

[0124] According to another aspect of the present disclosure, the second terminal may be exposed upward from the upper part of the body, and the third terminal may be exposed downward from the upper wall of the upper case.

[0125] According to another aspect of the present disclosure, the third terminal may be separated from the second terminal when the upper case is separated from the body.

[0126] According to another aspect of the present disclosure, at least one of the second terminal and the third terminal may be a clip pin or a pogo pin.

[0127] According to another aspect of the present disclosure, the upper case includes an upper wall covering the upper end of the body and a side wall covering the outer surface around the body, and the ground substrate may be provided on the side wall so as to extend along the periphery of the side wall.

[0128] According to another aspect of the present disclosure, the upper case includes an inner case and an outer case coupled to surround the outside of the inner case, and the ground substrate may be disposed between the inner case and the outer case.

[0129] According to another aspect of the present disclosure, the inner case may include a first rib supporting the upper end of the ground substrate and a second rib supporting the lower end of the ground substrate.

[0130] According to another aspect of the present disclosure, the aerosol generating device may include a second terminal connected to the sensor and exposed from the body, a terminal hole formed in the upper wall of the inner case, a connecting portion at the upper end of the grounding substrate that is bent inward so as to be disposed in the terminal hole, and a third terminal mounted on the connecting portion and exposed inside the inner case to contact the second terminal.

[0131] According to another aspect of the present disclosure, the aerosol generating device may further include an engaging protrusion that protrudes from the inner case through the terminal hole and contacts the connecting portion to limit the vertical movement of the connecting portion when the third terminal contacts the second terminal.

[0132] According to another aspect of the present disclosure, the grounding substrate may be an FPCB (Flexible Printed Circuit Board).

[0133] According to another aspect of the present disclosure, the upper case may include a cap for opening and closing the insertion port.

[0134] According to another aspect of the present disclosure, the sensor may be disposed adjacent to the insertion space.

[0135] According to another aspect of the present disclosure, the aerosol generating device may further include a cartridge that stores liquid and is coupled to the body adjacent to the insertion space, and the sensor may be disposed between the insertion space and the cartridge.

[0136] The specific embodiments or other embodiments of the present disclosure described above are not mutually exclusive or distinct from each other. Specific elements or all elements of the embodiments of the present disclosure described above can be combined in configuration or function with other elements or combined with each other.

[0137] For example, the A configuration described in one embodiment of the present disclosure and the drawings can be combined with the B configuration described in other embodiments of the present disclosure and the drawings. That is, even if the combination between the configurations is not directly described, the combination is possible unless it is described that the combination is impossible.

[0138] Although the embodiments have been described above with a number of illustrative examples, those skilled in the art in the technical field belonging to the scope of the principles of the present disclosure should understand that many other variations and embodiments are possible. More specifically, various modifications and variations are possible in the components and / or arrangements of the target 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 become apparent to those skilled in the art.

Claims

1. A body including an insertion space, a sensor provided on the body for sensing ambient electromagnetic characteristics, an upper case removably coupled to the body and including an insertion port corresponding to an opening of the insertion space, a grounding substrate coupled to the upper case, extending along the periphery of the upper case, and electrically grounding the sensor, an aerosol generating device.

2. A second terminal connected to the sensor and exposed from the body, a third terminal connected to the grounding substrate and provided on the upper case, exposed inside the upper case so as to contact the second terminal when the upper case is coupled to the body, the aerosol generating device according to claim 1.

3. The second terminal is exposed upward from an upper portion of the body, The third terminal is exposed downward from an upper wall of the upper case, the aerosol generating device according to claim 2.

4. The third terminal is separated from the second terminal when the upper case is separated from the body, the aerosol generating device according to claim 2.

5. At least one of the second terminal and the third terminal is a clip pin or a pogo pin, the aerosol generating device according to claim 2.

6. The upper case, an upper wall covering an upper end of the body, a side wall covering an outer surface around the body, and the grounding substrate is provided on the side wall so as to extend along the periphery of the side wall, the aerosol generating device according to claim 1.

7. The upper case, an inner case, an outer case coupled so as to surround the outside of the inner case, and the grounding substrate is disposed between the inner case and the outer case, the aerosol generating device according to claim 6.

8. The inner case, a first rib supporting an upper end of the grounding substrate, a second rib supporting a lower end of the grounding substrate, the aerosol generating device according to claim 7.

9. A second terminal connected to the sensor and exposed from the body, a terminal hole formed in an upper wall of the inner case, a connecting portion at an upper end of the grounding substrate bent inward so as to be disposed in the terminal hole ​ ​ The aerosol generating device according to claim 7, comprising a third terminal mounted on the connecting portion, exposed inside the inner case, and contacting the second terminal.

10. The aerosol generating device according to claim 9, further comprising an engaging protrusion protruding from the inner case through the terminal hole and contacting the connecting portion so as to limit the vertical movement of the connecting portion when the third terminal contacts the second terminal.

11. The aerosol generating device according to claim 1, wherein the grounding substrate is an FPCB (Flexible Printed Circuit Board).

12. The aerosol generating device according to claim 1, wherein the upper case includes a cap for opening and closing the insertion port.

13. The aerosol generating device according to claim 1, wherein the sensor is disposed adjacent to the insertion space.

14. Further comprising a cartridge for storing liquid and coupled to the body adjacent to the insertion space, The aerosol generating device according to claim 13, wherein the sensor is disposed between the insertion space and the cartridge.

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