Aerosol generating device

Abstract

An aerosol generating device is disclosed, which includes a pipe part having an insertion space formed therein and including a seat part extending from a lower part and an extension part extending from an upper part, and a cartridge seated on the seat part, the lower surface of the extension part being adjacent to an upper surface of the cartridge when the cartridge is seated on the seat part, and the lower surface of the extension part including an inclined surface such that a gap between the cartridge and the lower surface gradually increases toward an end of the extension part.

Description

[Technical field]

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

[0002] The aerosol generating device is for extracting a predetermined component from a medium or substance via an aerosol. The medium may contain a substance having a variety of components. The substance contained in the medium may be a flavoring substance having a variety of components. For example, the substance contained in the medium may contain a nicotine component, a herb component, and / or a coffee component. 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-referenced problems and other problems.

[0004] Another object of the present disclosure is to easily mount the cartridge to the main body.

[0005] It is yet another object of the present disclosure to improve the sensitivity and accuracy of air flow sensors.

[0006] Yet another object of the present disclosure is to prevent liquid droplets from entering the sensor. [Means for solving the problem]

[0007] According to one aspect of the present disclosure for achieving the above-mentioned object, an aerosol generating device includes a pipe portion in which an insertion space is formed and which includes a seating portion extending from a lower portion and an extension portion extending from an upper portion, and a cartridge seated on the seating portion, wherein a lower surface of the extension portion is adjacent to an upper surface of the cartridge when the cartridge is seated on the seating portion, and the lower surface of the extension portion includes an inclined surface such that a gap between the cartridge and the lower surface gradually increases toward the end of the extension portion. Effect of the Invention

[0008] According to at least one of the embodiments of the present disclosure, the cartridge can be easily attached to the main body.

[0009] According to at least one of the embodiments of the present disclosure, the sensitivity and accuracy of a sensor for detecting air flow can be improved.

[0010] According to at least one of the embodiments of the present disclosure, it is possible to prevent droplets from entering the sensor.

[0011] Further scope of applicability of the present disclosure will become apparent from the following detailed description. However, 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, since various changes and modifications within the spirit and scope of the present disclosure will be apparent to those skilled in the art. [Brief description of the drawings]

[0012] The above and other objects, features and other characteristics of the present disclosure will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0013] [Figure 1] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Diagram 2] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Diagram 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. [Diagram 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. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The same reference numerals are given to the same or similar components even if they are illustrated in different drawings, and redundant description thereof will be omitted.

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

[0016] In addition, in the following description of the embodiments disclosed in this specification, if a specific description of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description will be omitted. In addition, the attached drawings are provided to facilitate understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings. Therefore, the attached drawings should be interpreted as including all modifications, equivalents, and alternatives included in the idea and scope of the present disclosure.

[0017] 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.

[0018] When an element is said to be "connected" to another element, it will be understood that there can be other elements in between, whereas when an element is said to be "directly connected" to another element, it will be understood that there are no other elements in between.

[0019] The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0020] 1, the aerosol generating device may include at least one of a battery 10, a control unit 20, a heater 30, and a cartridge 300. At least one of the battery 10, the control unit 20, the heater 30, and the cartridge 300 may be disposed inside the aerosol generating device. The cartridge 300 and the heater 30 may be disposed in parallel to face each other. The internal structure of the aerosol generating device is not limited to that shown in the figure.

[0021] The aerosol generating device may include an insertion space 124 into which the stick 400 is inserted. The stick 400 and the insertion space 124 may extend in a cylindrical shape. The insertion space 124 may be formed around the heater 30. The stick 400 may be inserted into the insertion space 124 and exposed to the outside of the aerosol generating device. The stick 400 may include a medium made of shredded tobacco leaves, granules, reconstituted tobacco leaves, etc. The medium may be filled with about 70% granules. The medium may be a mixture of granules and reconstituted tobacco leaves, or a mixture of shredded tobacco leaves and reconstituted tobacco leaves. The stick 400 may be referred to as an aerosol-generating member 200.

[0022] The battery 10 can supply power to operate at least one of the control unit 20, the heater 30, and the cartridge 300. The battery 10 can supply power necessary to operate a display, a sensor, a motor, etc. provided in the aerosol generating device.

[0023] The control unit 20 can control the overall operation of the aerosol generation device. The control unit 20 can control the operation of at least one of the battery 10, the heater 20, and the cartridge 300. The control unit 20 can control the operation of a display, a sensor, a motor, and the like provided in the aerosol generation device. The control unit 20 can check the state of each component of the aerosol generation device and determine whether the aerosol generation device is in an operable state.

[0024] The heater 30 can generate heat using power supplied from the battery 10. The heater 30 can heat the stick 400 inserted into the aerosol generating device.

[0025] The cartridge 300 can store a liquid. The cartridge 300 can generate an aerosol. The cartridge 300 can include a wick for receiving the liquid therein and a heater for heating the wick to generate an aerosol. The aerosol generated in the cartridge 300 can be delivered to a user through a stick 400 inserted into an aerosol generating device.

[0026] 2 and 3, the body 100 may include an upper body 120 and a lower body 110. The upper body 120 may be located above the lower body 110. The lower body 110 may extend vertically. The body 100 may house a configuration for driving the device inside. The upper body 120 may provide an insertion space 124 that opens upward. The insertion space 124 may be located inside the upper body 120. The insertion space 124 may extend vertically. The insertion space 124 may be formed inside the upper body 120. The upper body 120 may be referred to as a pipe part 120.

[0027] The upper case 200 may have a hollow shape with an open bottom. The pipe part 120 may be inserted into the hollow of the upper case 200. The upper case 200 may be detachably coupled to the body 100. The upper case 200 may surround and cover the pipe part 120. A side part 211 of the upper case 200 may surround and cover a side wall 121 of the pipe part 120. An upper part 212 of the upper case 200 may cover an upper part 180 or an outer cover 180 of the pipe part 120. When the upper case 200 is coupled to the body 100, the upper case 200 may cover the body 100 and the cartridge 300 together. The cartridge 300 may be disposed inside the upper case 200.

[0028] The insertion opening 214 may be formed by opening the upper part 212 of the upper case 200. The insertion opening 214 may correspond to the opening of the insertion space 124. The cap 215 may be movably provided on the upper part 212 of the upper case 200. The slide hole 213 may be extended to one side from the insertion opening 214 at the upper part 212 of the upper case 200. The cap 215 may move along the slide hole 213. The cap 215 may open and close the insertion opening 214 and the insertion space 124. The stick 400 may be inserted into the insertion space 124 through the insertion opening 214.

[0029] The side wall 121 and the partition wall 122 may form a lateral portion of the pipe portion 120. The side wall 121 and the partition wall 122 may be connected to each other. The side wall 121 may be covered by the inner surface of the upper case 200. The partition wall 122 may separate the coupling space S and the insertion space 124 (see FIG. 5).

[0030] The pipe part 100 may include a seat 130. The seat 130 may extend to one side from a lower part of one side of the pipe part 120 or a lower part of the partition wall 122. The seat 130 may be formed on an upper side of the lower body 110. A bottom surface 321 (see FIG. 6) of the cartridge 300 may be seated on and supported by the seat 130.

[0031] The pipe portion 100 may include an extension portion 140. The extension portion 140 may extend to one side from an upper portion of the partition wall 122. The extension portion 140 may cover an upper end surface 322 (see FIG. 5) of the cartridge 300. The extension portion 140 may extend in a direction in which the seat portion 130 is formed.

[0032] 3 and 4, the coupling space S may be formed on one side of the pipe section 120. The coupling space S may be defined by the seating portion 130, the partition wall 122, and the extension portion 140 of the pipe section 120. The bottom of the coupling space S may be covered by the seating portion 130. One lateral side of the coupling space S may be covered by the partition wall 122 of the pipe section 120. The upper side of the coupling space S may be covered by the extension portion 140. The coupling space S may be open to the outside between the seating portion 130 and the extension portion 140.

[0033] The cartridge 300 may be inserted into the coupling space S and coupled to one side of the pipe portion 120. The bottom of the cartridge 300 may be seated on the seating portion 130. One lateral side 323 of the cartridge 300 may face the partition wall 122 of the pipe portion 120. The coupler 125 may be formed on the partition wall 122. The one lateral side 323 of the cartridge 300 may be coupled to the coupler 125. The other lateral side 324 of the cartridge 300 may be exposed to the outside of the pipe portion 120 and may be covered by the inner surface of the upper case 200. The upper end surface 322 of the cartridge 300 may be covered by the extension portion 140.

[0034] The cartridge 300 may include a first inlet 3011. The first inlet 3011 may be formed at an upper end of the cartridge 300. The first inlet 3011 may be in communication with the outside of the cartridge 300. The extension 140 may cover the first inlet 3011 and the periphery of the first inlet 3011. The extension 140 may be spaced a predetermined distance from the first inlet 3011 to form a gap 146 or a flow space 146 through which air can flow.

[0035] A user can inhale air by holding the stick 400 inserted into the insertion space 124 in his / her mouth. When the upper case 200 is coupled to the body 100, air can flow into the inside of the aerosol generating device through the opening 201 formed in the upper case 200. The flowed-in air can flow into the first inlet 3011 through the gap 146. The air can flow into the cartridge 300 through the first inlet 3011.

[0036] 5, the partition 122 of the pipe portion 120 may partition the insertion space 124 and the coupling space S. The partition 122 may be disposed between the insertion space 124 and the coupling space S. The partition 122 may extend vertically. One side wall 323 of the cartridge 300 may face one surface of the partition 122. The one side wall 323 of the cartridge 300 may be coupled to a coupler 125 (see FIG. 3) formed on the partition 122.

[0037] The pipe part 120 may provide an insertion space 124. The insertion space 124 may be formed inside an outer wall 121 and a partition wall 122 of the pipe part 120. The insertion space 124 may have a cylindrical shape that extends vertically. An upper end of the insertion space 124 may be open to the outside. A lower end of the insertion space 124 may be open and connected to the connection channel 123.

[0038] The cartridge 300 may include a first chamber C1. The first chamber C1 may store a liquid. The cartridge 300 may include a second chamber C2. The second chamber C2 may be separated from the first chamber C1. The second chamber C2 may be disposed below the first chamber C1.

[0039] The wick 311 may be disposed in the second chamber C2. The wick 311 may be connected to the first chamber C1. The wick 311 may receive liquid from the first chamber C1. The heater 312 may be disposed in the second chamber C2. The heater 312 may be wound around the wick 311. The heater 312 may receive power from the battery 10 (see FIG. 1). The heater 312 may heat the wick 311. When the heater 312 heats the wick 311 that has received the liquid, an aerosol may be generated in the second chamber C2.

[0040] The cartridge 300 may include a first inlet 3011. The first inlet 3011 may be formed by opening one side of an upper surface 322 of the cartridge 300. The first inlet 3011 may be formed at a position offset from the first chamber C1 in the up-down direction.

[0041] The cartridge 300 may include a second inlet 3012. The second inlet 3012 may be formed on one side of the second chamber C2 and may communicate with the second chamber C2.

[0042] The cartridge 300 may include an inlet 302. The inlet 302 may be located between a first inlet 3011 and a second inlet 3012. The inlet 302 may connect the first inlet 3011 and the second inlet 3012. The inlet 302 may extend long in the vertical direction. The inlet 302 may be formed parallel to the first chamber C1.

[0043] The cartridge 300 may include an outlet 303. The outlet 303 may be formed by opening the second chamber C2. The outlet 303 may communicate the outside of the cartridge 300 with the second chamber C2. The outlet 303 may be located on the opposite side of the second inlet 3012 with respect to the second chamber C2. When the cartridge 300 is coupled to the pipe unit 120, the outlet 303 may be coupled to the connecting channel 123. The outlet 303 may communicate the connecting channel 123 with the second chamber C2. An outlet port 323 forming the outlet 303 may protrude from one side of the cartridge 300. When the cartridge 300 is coupled to the pipe unit 120, the outlet port 323 may be inserted into one end of the connecting channel 123.

[0044] The extension part 140 may extend to one side from an upper part of the pipe part 120. The upper surface 322 of the cartridge 300 may be covered by the extension part 140. The lower surface 141 of the extension part 140 may face the upper surface 322 of the cartridge 300. The lower surface 141 of the extension part 140 may cover the first inlet 3011 and the periphery of the first inlet 3011. Gaps 146 may be formed between the lower surface 141 of the extension part 140 and the first inlet 3011 and between the lower surface 141 of the extension part 140 and the upper surface 322 of the cartridge 300. The gaps 146 may be in communication with the first inlet 3011. The gaps 146 may be in communication with the sensing hole 144.

[0045] The sensor 143 may be provided inside the extension 140. The sensor 143 may be disposed between the lower surface 141 and the upper surface 142 of the extension 140. The sensor 143 may sense the surrounding air flow. When air flows into the inlet 3011, the sensor 143 may sense the air flow. The sensor 143 may be a pressure sensor. The sensor 143 may sense the air flow according to a change in the surrounding pressure. The sensor 143 may be mounted on a substrate 145 disposed inside the extension 140, and may be electrically connected to the control unit 20 (see FIG. 1).

[0046] The sensing hole 144 may be formed by opening the lower surface 141 of the extension part 140. The sensing hole 144 may be formed at a position corresponding to the sensor 143. The sensing hole 144 may connect the gap 146 to the sensor 143. The sensor 143 may sense a change in air pressure at the sensing hole 144, allowing the control unit 20 (see FIG. 1 ) to determine the inflow of air into the first inlet 3011.

[0047] Air may flow from the gap 146 to the first inlet 3011. The air flowing into the first inlet 3011 may flow into the second chamber C2 by sequentially passing through the inlet 302 and the second inlet 3012. The air flowing into the second chamber C2 may be discharged to the outside of the cartridge 300 through the outlet 303, together with the aerosol generated around the core 311. The air discharged through the outlet 303 may be supplied to the insertion space 124 and the stick 400 inserted into the insertion space 124 through the connecting flow path 123.

[0048] 5 to 7, the lower surface 141 of the extension portion 140 may include an inclined surface 1411. The inclined surface 1411 may be inclined from the end toward the pipe portion 120 so that the distance between the extension portion 140 and the cartridge 300 becomes gradually smaller. Thus, the gap 146 may become gradually smaller as it approaches the pipe portion 120. The inclined surface 1411 may be inclined so as to extend from the upper side to the lower side from the end toward the pipe portion 120.

[0049] The lower surface 141 of the extension 140 may include a flat surface 1412. The flat surface 1412 may extend from the end of the inclined surface 1411 adjacent to the pipe section 120 to the pipe section 120. The flat surface 1412 may extend horizontally to the upper surface 322 of the cartridge 300.

[0050] Therefore, it may be easier to insert the cartridge 300 into the coupling space S and couple it with the body 100. The inclined surface 1411 may guide the cartridge 300 so that the cartridge 300 is inserted into the coupling space S. Even if the cartridge 300 comes into contact with the extension 140 when the cartridge 300 is inserted into the coupling space S, the cartridge 300 may come into contact with the inclined surface 1411 and slide while being guided into the coupling space S. The cartridge 300 may be guided into the coupling space S by the inclined surface 1411 and coupled with the coupler 125 (see FIG. 3 ).

[0051] 8, a first distance t1 of the gap 146 from the inclined surface 1411 to the upper surface 322 of the cartridge 300 in the vertical direction may be greater than a second distance t2 of the gap 146 from the flat surface 1412 to the upper surface 322 of the cartridge 300. A first inlet 3011 formed in the upper surface 322 of the cartridge 300 may be located below the inclined surface 1411. The first inlet 3011 may be positioned offset from the flat surface 1412 in the vertical direction.

[0052] Therefore, resistance to air flowing from the gap 146 to the first inlet 3011 is reduced, and air can more smoothly flow into the first inlet 3011. In addition, liquid droplets leaking from the cartridge 300 can be prevented from flowing into the sensor 143 through the sensing hole 144.

[0053] The sensing hole 144 may be formed by opening the flat surface 1412. The sensing hole 144 may be in communication with the gap 146. The sensor 143 may be disposed at a position corresponding to the sensing hole 144. The sensor 143 may sense the change in air pressure at the sensing hole 144. When air flows from the gap 146 to the first inlet 3011, the change in air pressure may be larger in the gap 146 between the flat surface 1412 and the upper surface 322 of the cartridge 300 than in the gap 146 between the inclined surface 1411 and the upper surface 322 of the cartridge 300. Thus, the sensitivity and accuracy of the sensor 143 may be improved.

[0054] Therefore, the cartridge 300 can be easily attached, air can smoothly flow into the inside of the cartridge 300, and the accuracy of the sensor 143 can be maintained or improved.

[0055] 9, the first inlet 3011 may be formed by opening the upper surface 322 of the cartridge 300. The first inlet 3011 may be disposed on the upper side of the first chamber C1. The first inlet 3011 may be located on the lower side of the plane 1412. The sensing hole 144 may be formed by opening the plane 1412. The first inlet 3011 may face the sensing hole 144 formed in the plane 1412.

[0056] The inlet passage 302 may include a first inlet passage 3021 and a second inlet passage 3022. One end of the first inlet passage 3021 may be connected to the first inlet 3011. The first inlet passage 3021 may extend long from the upper side of the first chamber C1 to the left and right. The first inlet passage 3021 may extend from the first inlet 3011 to the second inlet passage 3021. The second inlet passage 3022 may extend in the up and down direction from the side of the first chamber C1. The upper end of the second inlet passage 3022 may be connected to the other end of the first inlet passage 3021. Air may flow from the gap 146 through the first inlet 3011, the first inlet passage 3021, and the second inlet passage 3022 in sequence.

[0057] Therefore, when air flows into the first inlet 3011 from the gap 146, the change in air pressure in the sensing hole 144 can be greater. Also, the cartridge 300 can be easily coupled, and the sensitivity and accuracy of the sensor 143 can be improved.

[0058] 10 and 11, the lower surface 141 of the extension 140 may include a flat surface 1412 and an inclined surface 1411. The inclined surface 1411 may be formed at a position corresponding to the first inlet 3011, and the flat surface 1412 may be formed at a position corresponding to the first chamber C1. A gap 146 may be formed between the inclined surface 1411 and the upper surface 322 of the cartridge 300. The distance of the gap 146 between the inclined surface 1413 and the upper surface 322 of the cartridge 300 may be larger than the distance of the gap 146 between the flat surface 1412 and the upper surface 322 of the cartridge 300.

[0059] The sensing hole 144 may be formed on the flat surface 1412 and adjacent to the inclined surface 1411. Alternatively, the sensing hole 144 may be formed on the inclined surface 1411. The first inlet 3011 may be formed below the inclined surface 1412. The sensing hole 144 and the first inlet 3011 may face each other. The inclined surface 1411 may guide the inflow of air to the sensing hole 144 and the first inlet 3011.

[0060] Therefore, air can smoothly flow into the inside of the cartridge 300, and the sensitivity and accuracy of the sensor 143 can be improved.

[0061] 11 and 12, the layer 147 may block the sensing hole 144. The layer 147 may be disposed between the sensing hole 144 and the sensor 143. The layer 147 may contact the sensing portion of the sensor 143. The layer 147 may be breathable. The layer 147 may be a porous layer. Air A may pass through the layer 147. When air flows into the first inlet 3011 from the gap 146, the surrounding air may pass through the layer 147, and the air pressure change around the sensing hole 144 may increase.

[0062] Therefore, in order to improve the installation of the cartridge 300, an inclined surface 1411 is formed, and the size of the gap 146 is increased, thereby improving the sensitivity and accuracy of the sensor 143 even if the surrounding air pressure change is reduced.

[0063] The layer 147 may be a waterproof film. Each of the holes 1474 formed in the layer 147 may be large enough to allow air A to pass through, but may be smaller than the particles of the liquid B. For example, the layer 147 may be a membrane film that selectively allows a specific component to pass through. For example, the layer 147 may be a GORE-TEX membrane.

[0064] Therefore, air A passes through layer 147, but liquid B is prevented from passing through layer 147 and flowing into sensor 143. In addition, it is possible to prevent liquid in the air from flowing into sensor 143 and accumulating therein, thereby causing failure of sensor 143.

[0065] Referring to Figures 1 to 12, according to one aspect of the present disclosure, there is provided an aerosol generating device including a pipe portion having an insertion space formed therein and including a seating portion extending from a lower portion and an extension portion extending from an upper portion, and a cartridge seated on the seating portion, wherein a lower surface of the extension portion is adjacent to an upper surface of the cartridge when the cartridge is seated on the seating portion, and the lower surface of the extension portion includes an inclined surface such that a gap between the cartridge and the lower surface gradually increases toward the end of the extension portion.

[0066] According to another aspect of the present disclosure, the cartridge can include an inlet on a top surface of the cartridge.

[0067] According to another aspect of the present disclosure, the aerosol generating device may further include a sensor disposed in the extension portion for sensing air flow.

[0068] According to another aspect of the present disclosure, the aerosol generating device may further include a sensing hole formed on a lower surface of the extension at a position corresponding to the sensor.

[0069] According to another aspect of the present disclosure, a lower surface of the extension portion may further include a plane extending horizontally between the inclined surface and a portion of the pipe portion intersecting with the extension portion.

[0070] According to another aspect of the present disclosure, a first distance between the inclined surface and a top surface of the cartridge at an end of the extension may be greater than a second distance between the plane and a top surface of the cartridge.

[0071] According to another aspect of the present disclosure, the sensing hole may be formed in the plane.

[0072] According to another aspect of the present disclosure, the inlet may be formed at a position corresponding to the inclined surface and may be positioned offset from the sensing hole.

[0073] According to another aspect of the present disclosure, the cartridge may include a first chamber for storing liquid, a second chamber disposed below the first chamber, a wick disposed within the second chamber for receiving liquid from the first chamber, a heater for heating the wick, an outlet connecting the second chamber to the insertion space, and an inlet extending from the inlet to the second chamber in a direction parallel to the longitudinal direction of the first chamber.

[0074] According to another aspect of the present disclosure, the inlet may be positioned to face the sensing hole.

[0075] According to another aspect of the present disclosure, the cartridge may include a first chamber for storing liquid and located below the inlet, a second chamber disposed below the first chamber, a wick disposed within the second chamber and receiving liquid from the first chamber, a heater for heating the wick, an outlet connected from the second chamber to the insertion space, a first inlet passage extending in a direction parallel to the longitudinal direction of the first chamber and connected to the second chamber, and a second inlet passage formed above the first chamber and connecting the inlet to the first inlet passage.

[0076] 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 of the elements of the embodiments of the present disclosure described above can be combined with other elements or combined with each other.

[0077] For example, configuration A described in one embodiment of this disclosure and the drawings and configuration B described in another embodiment of this disclosure and the 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.

[0078] Although the embodiments have been described above according to 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 specifically, 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 applications will be apparent to those skilled in the art.

Claims

1. A pipe portion having an insertion space formed therein and including a seat portion extending from a lower portion and an extension portion extending from an upper portion; a cartridge seated on the seating portion, a lower surface of the extension portion adjacent to an upper surface of the cartridge when the cartridge is seated on the seat portion; An aerosol generating device, wherein the lower surface of the extension includes a sloped surface such that the gap between the cartridge and the lower surface gradually increases toward the end of the extension.

2. The aerosol generating device of claim 1 , wherein the cartridge includes an inlet on a top surface of the cartridge.

3. The aerosol generating device according to claim 2 , further comprising a sensor disposed in the extension for sensing air flow.

4. The aerosol generating device according to claim 3 , further comprising a sensing hole formed on a lower surface of the extension at a position corresponding to the sensor.

5. The aerosol generating device according to claim 4 , wherein the lower surface of the extension portion further includes a plane extending horizontally between the inclined surface and a portion of the pipe portion that intersects with the extension portion.

6. The aerosol generating device of claim 5 , wherein a first distance between the inclined surface and a top surface of the cartridge at the end of the extension is greater than a second distance between the plane and a top surface of the cartridge.

7. The aerosol generating device according to claim 5 , wherein the sensing hole is formed in the plane.

8. The aerosol generating device according to claim 4 , wherein the inlet is formed at a position corresponding to the inclined surface and is positioned offset from the sensing hole.

9. The cartridge comprises: a first chamber for storing a liquid; A second chamber disposed below the first chamber; a wick disposed within the second chamber to receive liquid from the first chamber; A heater for heating the wick; An outlet connected from the second chamber to the insertion space; and an inlet channel extending from the inlet to the second chamber in a direction parallel to a longitudinal direction of the first chamber.

10. The aerosol generating device according to claim 7 , wherein the inlet is positioned to face the sensing hole.

11. The cartridge comprises: a first chamber configured to store a liquid and positioned below the inlet; A second chamber disposed below the first chamber; a wick disposed within the second chamber to receive liquid from the first chamber; A heater for heating the wick; An outlet connected from the second chamber to the insertion space; a first inlet passage extending in a direction parallel to a longitudinal direction of the first chamber and connected to the second chamber; The aerosol generating device according to claim 10 , further comprising: a second inlet passage formed on an upper side of the first chamber and connecting the inlet to the first inlet passage.

Images