Aerosol generating device

Abstract

An aerosol generating device is disclosed. The aerosol generating device of the present disclosure includes a heating assembly surrounding a first insertion space that is open at the top and bottom, a lower pipe that is arranged parallel to the bottom of the heating assembly and supports the lower end of the heating assembly, an upper pipe that supports the upper end of the heating assembly, extends downward to cover the periphery of the heating assembly, and includes a periphery that overlaps the periphery of the lower pipe in the radial direction, a light projecting unit located in one of the lower pipe and the upper pipe at a position corresponding to the overlapping portion, and a light absorbing unit located in the other of the lower pipe and the upper pipe at a position corresponding to the overlapping portion and integrally coupled to an inner circumferential surface of the light projecting unit.

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 seal the gaps in the structure where air flows.

[0005] Still another object of the present disclosure is to stably couple the structures.

[0006] Still another object of the present disclosure is to improve the air flow efficiency.

Means for Solving the Problems

[0007] According to one aspect of the present disclosure for achieving the above object, a heating assembly surrounding a first insertion space opened at the upper and lower portions, a lower pipe disposed in parallel below the heating assembly and supporting the lower end of the heating assembly, an upper pipe supporting the upper end of the heating assembly, extending downward to cover the periphery of the heating assembly, and including a periphery radially overlapping the periphery of the lower pipe, a light projecting unit located at a position corresponding to the overlapping portion and disposed on either one of the lower pipe and the upper pipe, and a light absorbing unit formed on the other of the lower pipe and the upper pipe at a position corresponding to the overlapping portion and integrally coupled to the inner peripheral surface of the light projecting unit, an aerosol generating device is provided.

Advantages of the Invention

[0008] According to at least one of the embodiments of the present disclosure, it is possible to seal a gap of a structure through which air flows.

[0009] According to at least one of the embodiments of the present disclosure, it is possible to stably couple the structures.

[0010] According to at least one of the embodiments of the present disclosure, it is possible to improve the air flow efficiency.

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

Brief Description of the Drawings

[0012]

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DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The same or similar components are given the same reference numerals even if they are shown in different drawings, and duplicate descriptions thereof will be omitted.

[0014] The suffixes "module" and "section" for the components used in the following description are used only for the ease of description in the specification. "Module" and "section" do not have distinct meanings or roles from each other.

[0015] Also, 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. 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.

[0016] 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.

[0017] When referring to a 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 component being "directly connected" to another component, it can be understood that no other components exist in between.

[0018] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0019] Referring to FIG. 1, the aerosol generating device 100 can include at least one of the battery 10, the control unit 20, and the heating assembly 30. Referring to FIGS. 2 and 3, the aerosol generating device 100 can further include a cartridge 40.

[0020] Referring to FIG. 1, the battery 10, the control unit 20, and the heating assembly 30 can be arranged in a row. Referring to FIG. 2, the battery 10, the control unit 20, the heating assembly 30, and the cartridge 40 can be arranged in a row. Referring to FIG. 3, the cartridge 40 and the heating assembly 30 can be arranged parallel to each other facing each other. The internal structure of the aerosol generating device 100 is not limited to that shown.

[0021] The aerosol generating device 100 can have an insertion space 54. The insertion space 54 can open at the upper side of the aerosol generating device 100. The insertion space 54 can have a cylindrical shape that extends longitudinally in the vertical direction. A stick 200 can be inserted into the insertion space 54.

[0022] The heating assembly 30 can be arranged around the insertion space 54. The heating assembly 30 can have a cylindrical shape surrounding the insertion space 54 and opening at the upper and lower ends. The heating assembly 30 can surround one side of the stick 200 inserted into the insertion space 54. The heating assembly 30 can heat the insertion space and / or the stick 200 inserted into the insertion space 54 to generate an aerosol.

[0023] The battery 10 can supply power so that at least one of the control unit 20, the heating assembly 30, and the cartridge 40 operates. The battery 10 can supply the power necessary for the operation of a display, a sensor, a motor, etc. provided in the aerosol generating device 100.

[0024] The control unit 20 can control the overall operation of the aerosol generating device 100. The control unit 20 can control the operation of at least one of the battery 10, the heating assembly 20, and the cartridge 40. The control unit 20 can control the operation of a display, a sensor, a motor, etc. provided in the aerosol generating device 100. The control unit 20 can check the respective states of the components of the aerosol generating device 100 and determine whether the aerosol generating device 100 is in an operable state.

[0025] The cartridge 40 can store a liquid. The cartridge 40 can generate an aerosol from the stored liquid. The aerosol generated by the cartridge 40 can be transmitted to the user through the stick 200 inserted into the aerosol generating device 100.

[0026] The cartridge 40 can include a liquid chamber for storing a liquid, and an atomization chamber in which an aerosol is generated and air passes through. The cartridge 40 can include a wick disposed inside the atomization chamber and receiving the liquid from the liquid chamber. The cartridge 40 can include a heating coil for heating the wick to generate an aerosol. The air flowing into the inlet of the cartridge 40 can pass through the liquid chamber while carrying the aerosol and be discharged through the outlet of the cartridge 40.

[0027] The lower end of the stick 200 can be inserted into the insertion space 54, and the upper end can be exposed to the outside from the insertion space 54. The user can inhale air by holding the upper end of the exposed stick 200 in the mouth. The air can pass through the inside of the aerosol generating device 100 while carrying the aerosol and be provided to the user.

[0028] Referring to FIG. 4, the lower pipe 52 can be inserted inward from the lower side of the upper pipe 51. The heating assembly 30 can be inserted inside the upper pipe 51. The heating assembly 30 can be disposed between the upper end of the upper pipe 51 and the upper end of the lower pipe 52. The upper pipe 51 and the lower pipe 52 can be coupled to each other with the heating assembly 30 sandwiched therebetween.

[0029] Referring to FIGS. 4 and 5, the heating assembly 30 can have a pipe shape extending in the vertical direction. The heating assembly 30 can have a cylindrical shape. The heating assembly 30 can form a first insertion space 541 inside. The first insertion space 541 can have a cylindrical shape extending in the vertical direction. The first insertion space 541 can be open at the top and bottom. The upper end of the first insertion space 541 can be open to the outside.

[0030] The heating assembly 30 can include a heating body 31. The heating body 31 can have a cylindrical shape extending in the vertical direction. The heating body 31 can surround the first insertion space 541. The heating body 31 can be open at the top and bottom. The heating body 31 can be formed of a material with good thermal conductivity. The heating body 31 can support a heating element 33.

[0031] The heating assembly 30 can include a heating flange 32. The heating flange 32 can be integrally formed with the heating body 31. The heating flange 32 can protrude radially outward from the upper end of the heating body 31. The heating flange 32 can extend in the circumferential direction. The heating flange 32 can have a ring shape.

[0032] The heating assembly 30 can include a heating element 33. The heating element 33 can have a cylindrical shape extending in the vertical direction. The heating element 33 can surround the outer peripheral surface of the heating body 31. The inner peripheral surface of the heating element 33 can be in contact with and adhered to the outer peripheral surface of the heating body 31. The upper end of the heating element 33 can be covered by the heating flange 32. The heating element 33 can generate heat to heat the first insertion space 541. The heating element 33 can be an electric resistance heating heater. The heating element 33 can be formed of a conductive metal.

[0033] The heating assembly 30 can include a heat insulation layer 34. The heat insulation layer 34 can have a cylindrical shape extending in the vertical direction. The heat insulation layer 34 can surround the outer peripheral surface of the heating element 33. The heat insulation layer 34 can prevent the heat generated by the heating element 33 from dissipating to the outside instead of the first insertion space 541.

[0034] The first connector 35 can extend downward from the lower end of the heating element 33 for a long distance. The first connector 35 can be integrally formed with the heating element 33. The first connector 35 can be formed of a conductive metal. The first connector 35 is connected to the second connector 36, and the second connector 36 can be connected to the battery 10 and / or the control unit 20. The second connector 36 can transmit power to the first connector 35. Therefore, the heating element 33 can receive power.

[0035] Referring to FIGS. 4, 6, and 7, the periphery 521 of the lower pipe 52 can have a cylindrical shape extending in the vertical direction. The lower pipe 52 can be disposed below the upper pipe 51. The periphery 521 can be referred to as the side wall 521.

[0036] The lower pipe 52 can have a second insertion space 542. The periphery 521 of the lower pipe 52 can surround the periphery of the second insertion space 542. The second insertion space 542 can have a cylindrical shape that is open at the top and bottom.

[0037] The light absorption part 523 can be formed on the outer peripheral surface of the upper periphery 521 of the lower pipe 52. The light absorption part 523 can extend in the circumferential direction along the outer peripheral surface of the periphery 521. The light absorption part 523 can have a "C" shape or an "O" shape. The light absorption part 523 can be oriented in the radially outward direction.

[0038] The first support rib 525 can be formed on the upper part of the outer peripheral surface of the periphery 521 of the lower pipe 52. The first support rib 525 can be formed around the light absorption part 523. The first support rib 525 can project in the radially outward direction from the upper end and / or the lower end of the light absorption part 523 and be oriented upward. However, the position of the first support rib 525 is not limited to this. The first support rib 525 can extend in the circumferential direction along the light absorption part 523. The first support rib 525 can form a step on the periphery 521.

[0039] The upper surface 522 of the periphery 521 of the brazing pipe 52 can extend in the circumferential direction along the periphery 521. The upper surface 522 can be oriented above the brazing pipe 52. The upper surface 522 can have a "C" shape or an "O" shape.

[0040] The heater support rib 526 can be formed at the upper end of the periphery 521 of the brazing pipe 52. The heater support rib 526 can be formed by the upper end of the inner circumferential surface of the periphery 521 of the brazing pipe 52 sinking in the radially outward direction. The heater support rib 526 can form a step at the upper end of the inner circumferential surface of the periphery 521 of the brazing pipe 52. The heater support rib 526 can be adjacent to the upper surface 522. The heater support rib 526 can face the second insertion space 542 in the radially inward direction.

[0041] One side of the periphery 521 of the brazing pipe 52 can form a recessed groove 5244 by sinking in the radially inward direction. The recessed groove 5244 can extend to the upper surface 522 of the periphery 521 of the brazing pipe 52. The recessed groove 5244 can be formed between both ends of the "C" - shaped light absorption part 523. One side of the periphery 521 of the brazing pipe 52 can be open to form a connecting hole 5243. The connecting hole 5243 can be located below the recessed groove 5244. The first connector 35 can be inserted and arranged in the recessed groove 5244. The first connector 35 and the second connector 36 can pass through the connecting hole 5243 and be connected to each other.

[0042] The base 528 can protrude in the radially outward direction from the outer circumferential surface at the lower end of the periphery 521 of the brazing pipe 52. The base 528 can extend in the circumferential direction along the periphery 521.

[0043] The support bar 529 can extend long upward along the periphery 521 of the brazing pipe 52 from the base 528. The support bar 529 can protrude in the radially outward direction from the periphery 521. The support bar 529 can be formed on both sides of the brazing pipe 52.

[0044] The inlet 5422 can be formed by opening one side lower part of the periphery 521 of the lower pipe 52. The inlet 5422 can communicate with the connecting flow path 5421 (see FIG. 8). The cartridge 40 (see FIGS. 2 and 3) can communicate with the inlet 5422. Thus, the air and / or aerosol discharged through the outlet of the cartridge 40 after passing through the cartridge 40 can flow into the inlet 5422.

[0045] Referring to FIGS. 4 and 8 to 10, the upper pipe 51 can have a hollow shape. The upper pipe 51 can have a cylindrical inner peripheral surface surrounding the hollow. The hollow can be opened upward to form an opening 514. The opening 514 can be formed by opening the upper end of the upper pipe 51. The opening 514 can be surrounded by a pipe flange 516. The opening 514 can communicate with the first insertion space 541 at a position corresponding to the upper side of the first insertion space 541.

[0046] The periphery 510 of the upper pipe 51 can extend long in the vertical direction. The periphery 510 of the upper case 51 can include an upper periphery 511 and a lower periphery 512 located below the upper periphery 511. The periphery 510 can be referred to as a side wall 510. The upper periphery 511 can be referred to as an upper wall 511. The lower periphery 512 can be referred to as a lower wall 512.

[0047] The inner peripheral surface of the upper periphery 511 of the upper pipe 51 can surround the outer peripheral surface of the heating assembly 30. The inner peripheral surface of the lower periphery 512 of the upper pipe 51 can surround the upper outer peripheral surface of the periphery 521 of the lower pipe 52.

[0048] The flange 516 can be integrally formed at the upper end of the upper pipe 51. The pipe flange 516 can be located above the heating assembly 30. The pipe flange 516 can protrude radially inward from the inner peripheral surface at the upper end of the upper peripheral 511 of the upper pipe 51. The pipe flange 516 can extend in the circumferential direction. The pipe flange 516 can support the upper end of the heating assembly 30. The pipe flange 516 can support the upper end of the heating body 31 or the heating flange 32. The pipe flange 516 can overlap with the periphery of the heating assembly 30 in the vertical direction.

[0049] The periphery 510 of the upper pipe 51 can extend below the heating assembly 30. The periphery 510 of the upper pipe 51 can include a portion that radially overlaps with the periphery 521 of the lower pipe 52. The joints 513, 523 can be formed at the portion where the periphery 510 of the upper pipe 51 and the periphery 521 of the lower pipe 51 radially overlap. The joints 513, 523 can be adjacent to the heating assembly 30.

[0050] The outer peripheral surface of the periphery 521 of the lower pipe 52 can be surrounded by the inner peripheral surface of the lower periphery 510 of the upper pipe 51. The upper end portion of the periphery 521 of the lower pipe 52 can be located below the pipe flange 516.

[0051] The upper end portion of the upper pipe 51 or the pipe flange 516 can support the upper end of the heating assembly 30. The upper end portion of the periphery 521 of the lower pipe 52 or the heater support rib 526 can support the lower end of the heating assembly 30. The heater support rib 526 can extend in the circumferential direction along the periphery of the lower end of the heating assembly 30. The inner peripheral surface of the heating body 31 can be parallel to the inner peripheral surface of the periphery 521 of the lower pipe 52.

[0052] The upper periphery 511 of the upper pipe 51 can form an air gap 37 spaced outwardly from the periphery of the heating assembly 30. A heat insulating layer 34 and an air gap 37 can be formed between the heating element 33 and the upper periphery 511 of the upper pipe 51.

[0053] Therefore, the heating assembly 30 can be stably supported. Also, it is possible to prevent the heat generated by the heating assembly 30 from thermally deforming the device.

[0054] The second insertion space 542 can be located below the first insertion space 541. The second insertion space 542 can communicate with the first insertion space 541. The periphery of the second insertion space 542 can correspond to the periphery of the first insertion space 541. The first insertion space 541 and the second insertion space 542 can form a continuous cylindrical shape. The second insertion space 542 can extend downward from the first insertion space 541. The insertion space 54 can include the first insertion space 541 and the second insertion space 542. The stick 200 (see FIGS. 1 to 3) can be inserted into the insertion space 54. The height of the first insertion space 541 can correspond to the height of the medium contained inside the stick 200 (see FIGS. 1 to 3) inserted into the insertion space 54. Therefore, the heating element 33 can heat the medium of the stick 200 to generate an aerosol.

[0055] The lower pipe 52 can include a stick support 527. The stick support 527 can cover at least a part of the lower end of the second insertion space 542. The stick support 527 can project radially inward from the inner peripheral surface of the lower part of the periphery 521 of the lower pipe 52. The stick support 527 can extend circumferentially along the inner peripheral surface of the periphery 521 of the lower pipe 52. The lower end of the stick 200 (see FIGS. 1 to 3) inserted into the insertion space 54 is supported by the stick support 527, and thus further insertion can be restricted.

[0056] The connection flow path 5241 can be formed below the second insertion space 542. The connection flow path 5241 can be surrounded by the stick support 527. The connection flow path 5241 can extend downward from the second insertion space 542. The connection flow path 5241 can be located between the second insertion space 542 and the inlet 5242. The upper end of the connection flow path 5241 can communicate with the second insertion space 542. One side of the lower part of the connection flow path 5241 can communicate with the inlet 5242. The air and / or aerosol flowing into the inlet 5242 can pass through the connection flow path 5241 and be supplied to the stick 200 (see FIGS. 1 to 3) inserted into the insertion space 54.

[0057] The joints 513, 523 can include a light emitting part 513 and a light absorbing part 523. The light emitting part 513 can be formed on either one of the lower pipe 52 and the upper pipe 51, and the light absorbing part 523 can be formed on the other one of the lower pipe 52 and the upper pipe 51.

[0058] For example, the light emitting part 513 can be formed on one side of the periphery 510 of the upper pipe 51, and the light absorbing part 523 can be formed on one side of the periphery 521 of the lower pipe 52. The light emitting part 513 and the light absorbing part 523 can overlap each other in the radial direction and can be in contact with each other. The light absorbing part 523 can be coupled to the inner peripheral surface of the light emitting part 513. The outer peripheral surface of the light absorbing part 523 and the inner peripheral surface of the light emitting part 513 can extend in the circumferential direction in corresponding shapes.

[0059] As another example, the periphery 510 of the upper pipe 51 can be disposed on the inner peripheral surface of the periphery 521 of the lower pipe 52, the light emitting part 513 can be formed around the lower pipe 52, and the light absorbing part 523 can be formed around the periphery 510 of the upper pipe 51 (see FIGS. 11 and 12).

[0060] The light emitting part 523 can be formed between the upper periphery 511 and the lower periphery 512 of the upper pipe 51. The light emitting part 513 can have light transmissivity. For example, the light emitting part 513 can be formed of a plastic having light transmissivity. The laser beam L can pass through the light emitting part 513. The light transmittance of the light emitting part 513 can be 30% or more.

[0061] The light absorption part 523 can be formed at the upper end of the periphery 521 of the lower pipe 52. The light absorption part 523 can have light absorption properties. For example, the light absorption part 523 can be formed of a plastic having light absorption properties. The laser cannot pass through the light absorption part 523.

[0062] The outer peripheral surface of the light absorption part 523 and the inner peripheral surface of the light projection part 513 can be joined to each other by a laser-welding method. The laser beam L can be irradiated from the outside of the light projection part 513 toward the light absorption part 523. The irradiated laser beam L can pass through the light projection part 513 and be absorbed by the outer peripheral surface of the light absorption part 523. The outer peripheral surface of the light absorption part 523 can absorb the laser beam L and generate heat and melt. The heat of fusion of the light absorption part 523 can heat and melt the inner peripheral surface of the transmissive member 513. Here, the inner peripheral surface of the light projection part 513 and the inner peripheral surface of the light absorption part 523 can be brought into close contact with each other by pressure. Therefore, the inner peripheral surface of the light projection part 513 and the outer peripheral surface of the light absorption part 523 can be welded and adhered to each other and integrally joined.

[0063] Therefore, compared with other joining methods, the lower pipe 52 and the upper pipe 51 can be precisely and stably joined or sealed, and foreign substances such as liquid and air can be prevented from flowing into the gap between the lower pipe 52 and the upper pipe 51. In addition, the flow efficiency of the air passing through the insertion space 54 can be improved. In addition, the workability can be improved by an automated process.

[0064] Based on the radial direction, the thickness of the light projection part 523 may be smaller than the thickness of the periphery 510 of the upper pipe 51 formed around it. The thickness of the light projection part 523 may be smaller than the thicknesses of the upper periphery 511 and the lower periphery 512 of the upper pipe 51. The light projection part 523 can be formed by the outer peripheral surface of the periphery 510 of the upper pipe 51 being recessed in the radially inner direction.

[0065] Therefore, the transmissivity of the laser beam L passing through the light projecting portion 523, which is the portion to be welded, can be increased.

[0066] The outer peripheral surface of the lower pipe 52 and the inner peripheral surface of the upper pipe 51 can support each other by overlapping in the vertical direction. The lower pipe 52 can include a first support rib 525 that protrudes radially outward from the outer peripheral surface of the periphery 521. The first support rib 525 can be oriented upward. The first support rib 525 can extend in the circumferential direction. The first support rib 525 can be formed adjacent to the upper side or the lower side of the light absorption portion 523. The first support rib 525 can form a step on the outer peripheral surface of the periphery 521 of the lower pipe 52.

[0067] The upper pipe 51 can include a second support rib 515 that protrudes radially inward from the inner peripheral surface of the periphery 510. The second support rib 515 can be oriented downward. The second support rib 515 can extend in the circumferential direction. The second support rib 515 can be formed adjacent to the upper side and / or the lower side of the inner peripheral surface of the light projecting portion 513. The second support rib 515 can form a step on the inner peripheral surface of the periphery 510 of the upper pipe 51.

[0068] The first support rib 525 and the second support rib 515 can be formed at corresponding positions with respect to each other. The second support rib 515 can contact or join the first support rib 515. The second support rib 515 and the first support rib 525 can support each other in the vertical direction.

[0069] Referring to FIGS. 1 to 9, an aerosol generating device 100 according to one aspect of the present disclosure includes a heating assembly surrounding a first insertion space that is open at the top and bottom, a lower pipe disposed parallel to the lower side of the heating assembly and supporting the lower end of the heating assembly, an upper pipe supporting the upper end of the heating assembly, extending downward to cover the periphery of the heating assembly, and including a periphery that radially overlaps the periphery of the lower pipe, a light projecting portion located at a position with respect to the overlap on either the lower pipe or the upper pipe, and a light absorbing portion formed at a position with respect to the overlap on the other of the lower pipe and the upper pipe and integrally coupled to the inner peripheral surface of the light projecting portion.

[0070] According to another aspect of the present disclosure, the upper pipe covers the outer peripheral surface of the heating assembly and the outer peripheral surface of the lower pipe, the light absorbing portion is located on the lower pipe, the light projecting portion is located on the upper pipe, and the outer peripheral surface of the light absorbing portion can be surrounded.

[0071] According to another aspect of the present disclosure, the light projecting portion may have a thickness smaller than the thickness of the periphery of the upper pipe around the periphery of the light projecting portion.

[0072] According to another aspect of the present disclosure, the light projecting portion may be formed by the outer peripheral surface of the upper pipe being recessed in the radially inward direction.

[0073] According to another aspect of the present disclosure, the light absorbing portion may have an outer peripheral surface fused to the inner peripheral surface of the light projecting portion.

[0074] According to another aspect of the present disclosure, the outer peripheral surface of the light absorbing portion may be fused to the inner peripheral surface of the light projecting portion when absorbing a laser beam transmitted from the outside of the light projecting portion.

[0075] According to another aspect of the present disclosure, the light projecting portion may be formed of a light-transmissive plastic, and the light absorbing portion may be formed of a light-absorbing plastic.

[0076] According to another aspect of the present disclosure, the light projecting portion may have a light transmittance of 30% or more.

[0077] According to another aspect of the present disclosure, the aerosol generating device may be disposed above the heating assembly, and may further include a pipe flange that protrudes radially inward from the inner peripheral surface of the upper pipe to support the upper end of the heating assembly.

[0078] According to another aspect of the present disclosure, the lower pipe may have an upper surface that supports the lower end of the heating assembly.

[0079] According to another aspect of the present disclosure, the lower pipe may communicate with the first insertion space and may have a second insertion space formed therein that extends downward from the first insertion space.

[0080] According to another aspect of the present disclosure, the lower pipe may include a stick support that covers at least a part of the lower end of the second insertion space.

[0081] According to another aspect of the present disclosure, the lower pipe may be surrounded by the stick support and may include a connecting channel that communicates the second insertion space with the outside of the lower pipe.

[0082] According to another aspect of the present disclosure, the lower pipe and the upper pipe may be supported so as to overlap each other in the vertical direction.

[0083] According to another aspect of the present disclosure, the lower pipe may include a first support rib that protrudes in a radially outer direction from an outer peripheral surface of the lower pipe and is oriented upward, and the upper pipe may include a second support rib that protrudes in a radially inner direction from an inner peripheral surface of the upper pipe and is oriented downward and is coupled to the first support rib.

[0084] 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 with each other.

[0085] For example, Configuration A described in one embodiment of the present disclosure and the drawings and Configuration B described in another embodiment of the present disclosure and the drawings can be combined with each other. That is, even if the combination between configurations is not directly described, the combination is possible except when it is described that the combination is impossible.

[0086] Although the embodiments have been described above with numerous exemplary 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 heating assembly surrounding a first insertion space that is open at the upper and lower portions, A lower pipe disposed parallel to the lower side of the heating assembly and supporting the lower end of the heating assembly, An upper pipe that supports the upper end of the heating assembly, extends downward to cover the periphery of the heating assembly, and includes a periphery that overlaps radially with the periphery of the lower pipe, A light projecting portion located at any one of the lower pipe and the upper pipe at a position corresponding to the overlapping portion, A light absorbing portion located at the other of the lower pipe and the upper pipe at a position corresponding to the overlapping portion and integrally coupled to the inner peripheral surface of the light projecting portion, an aerosol generating device.

2. The upper pipe covers the outer peripheral surface of the heating assembly and the outer peripheral surface of the lower pipe, The light absorbing portion is located on the lower pipe, The light projecting portion is located on the upper pipe and surrounds the outer peripheral surface of the light absorbing portion, the aerosol generating device according to claim 1.

3. The light projecting portion has a thickness smaller than the thickness of the upper pipe around the light projecting portion, the aerosol generating device according to claim 2.

4. The light projecting portion is formed by the outer peripheral surface around the upper pipe being recessed in the radially inner direction, the aerosol generating device according to claim 3.

5. Further including a pipe flange disposed above the heating assembly and protruding radially inward from the inner peripheral surface of the upper pipe to support the upper end of the heating assembly, the aerosol generating device according to claim 2.

6. The aerosol generating device according to claim 5, wherein the lower wax pipe has an upper surface that supports the lower end of the heating assembly.

7. The aerosol generating device according to claim 2, wherein the lower wax pipe has a second insertion space formed therein that communicates with the first insertion space and extends downward from the first insertion space.

8. The aerosol generating device according to claim 7, wherein the lower wax pipe includes a stick support that covers at least a part of the lower end of the second insertion space.

9. The aerosol generating device according to claim 8, wherein the lower wax pipe is surrounded by the stick support and further includes a connecting flow path that communicates the second insertion space with the outside of the lower wax pipe.

10. The aerosol generating device according to claim 2, wherein the lower wax pipe and the upper pipe support each other by overlapping in the vertical direction.

11. The lower wax pipe includes a first support rib that protrudes in the radially outer direction from the outer peripheral surface of the lower wax pipe and is oriented upward. The aerosol generating device according to claim 10, wherein the upper pipe includes a second support rib that protrudes in the radially inner direction from the inner peripheral surface of the upper pipe and is oriented downward and is coupled to the first support rib.

12. The aerosol generating device according to claim 1, wherein the light absorption part has an outer peripheral surface fused to the inner peripheral surface of the light projection part.

13. The aerosol generating device according to claim 12, wherein the outer peripheral surface of the light absorption part is fused to the inner peripheral surface of the light projection part when absorbing a laser beam projected from the outside of the light projection part.

14. The light projection part includes a light-transmissive plastic. The aerosol generating device according to claim 1, wherein the light absorption part includes a light-absorbing plastic.

15. The aerosol generating device according to claim 1, wherein the light projecting unit has a light transmittance of 30% or more.

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