Aerosol Generator

Abstract

The aerosol generating device of the present disclosure includes a body having a first insertion space that is open upward, a heater holder that includes a sidewall and is detachably inserted into the first insertion space, a heater that is connected to the heater holder, and an extractor that includes a sidewall and is sized to be inserted into the first insertion space, wherein the sidewall of the heater holder and the sidewall of the extractor together form a second insertion space that is open upward and are arranged alternately with each other along the periphery of the second insertion space.

Description

[Technical Field]

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

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

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

[0004] Another object of the present disclosure is to provide an aerosol generating device with improved heater and power efficiency.

[0005] It is still another object of the present disclosure to provide an aerosol generating device in which the heater can be easily attached and detached.

[0006] Yet another object of the present disclosure is to reduce overheating of aerosol generating devices.

[0007] It is yet another object of the present disclosure to provide an aerosol generating device that is easy to clean and maintain.

[0008] Yet another object of the present disclosure is to prevent the heater from becoming detached from the device during stick insertion.

[0009] It is yet another object of the present disclosure to prevent circumferential rotation of the heater.

[0010] It is yet another object of the present disclosure to provide an aerosol generating device in which the heater rotation period is improved (or increased).

[0011] Yet another object of the present disclosure is to reduce factors that alter the taste of the stick.

[0012] It is yet another object of the present disclosure to provide an aerosol generating device in which the sticks are easily separated. [Means for solving the problem]

[0013] According to one aspect of the subject matter described in the present application, an aerosol generating device includes a body having a first insertion space that is open upward, a heater holder that includes a sidewall and is removably inserted into the first insertion space, a heater connected to the heater holder, and an extractor that includes a sidewall and is removably inserted into the first insertion space, wherein the sidewall of the heater holder and the sidewall of the extractor together form a second insertion space that is open upward and are arranged alternately with each other along the periphery of the second insertion space. [Effects of the Invention]

[0014] According to at least one embodiment of the present disclosure, an aerosol generating device with improved heater and power efficiency can be provided.

[0015] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device in which the heater can be easily attached and detached.

[0016] According to at least one of the embodiments of the present disclosure, overheating of the aerosol generating device can be reduced.

[0017] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device that is easy to clean and maintain.

[0018] According to at least one of the embodiments of the present disclosure, the heater can be prevented from being separated from the device when inserting the stick.

[0019] According to at least one of the embodiments of the present disclosure, it is possible to prevent the heater from rotating in the circumferential direction.

[0020] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device in which the heater rotation period is improved (or increased).

[0021] According to at least one of the embodiments of the present disclosure, factors that cause deterioration of the stick taste can be reduced.

[0022] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device in which the sticks are easily separated.

[0023] Further scope of applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure will be apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only. [Brief explanation of the drawings]

[0024] [Figure 1] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 2] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 3] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 4] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 5] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 6] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 7] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 8] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 9] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 10] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 11] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 12] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 13] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 14] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 15] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 16] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 17] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 18] 1 illustrates an example of an aerosol generating device according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The same or similar components will be given the same reference numerals even if they are shown in different drawings, and redundant description thereof will be omitted.

[0026] The suffixes "module" and "section" for components used in the following description are used solely for the convenience of explanation of the specification. "Module" and "section" do not have different meanings or roles from each other.

[0027] Furthermore, in the following description of the embodiments disclosed herein, detailed descriptions of related known technologies may be omitted if they may obscure the gist of the embodiments disclosed herein. The accompanying drawings are provided to facilitate understanding of the embodiments disclosed herein, and do not limit the technical ideas disclosed herein. Therefore, the accompanying drawings should be interpreted as including all modifications, equivalents, and alternatives within the spirit and scope of the present disclosure.

[0028] 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.

[0029] When a component is said to be "connected" to another component, it will be understood that there may be other components in between, whereas when a component is said to be "directly connected" to another component, it will be understood that there are no other components in between.

[0030] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0031] 1 and 2, the aerosol generating device may include at least one of a battery 101, a control unit 102, and a sensor 103. At least one of the battery 101, the control unit 102, and the sensor 103 may be disposed inside a body 10 of the aerosol generating device. The body 10 may provide a space that is open at the top so that a stick S can be inserted. The bottom end of the stick S may be inserted into the body 10, and the top end of the stick S may protrude outside the body 10. A user may hold the top end of the stick S exposed to the outside in their mouth and inhale air.

[0032] The heater 50 can heat the stick S. The heater 50 can extend upward in the space into which the stick S is inserted. The heater 50 can be inserted into the lower part of the stick S. The heater 50 can be a resistive heater.

[0033] The battery 101 can supply power to operate the components of the aerosol generating device. The battery 101 can supply power to at least one of the control unit 102, the sensor 103, the induction coil 15, and the heater rod 30. The battery 101 can supply power necessary to operate the display, motor, etc. installed in the aerosol generating device.

[0034] The control unit 102 can control the overall operation of the aerosol generation device. The control unit 102 can control the operation of at least one of the battery 101, the induction coil 15, and the sensor 103. The control unit 102 can control the operation of a display, a motor, etc. installed in the aerosol generation device. The control unit 102 can check the status of each component of the aerosol generation device and determine whether the aerosol generation device is in an operable state.

[0035] The sensor 103 may sense the temperature of the heater 50. The control unit 102 may control the temperature of the heater 50 based on the temperature of the heater 50 sensed by the sensor 103. The control unit 102 may transmit information about the temperature of the heater 50 sensed by the sensor 103 to a user via a user interface.

[0036] The aerosol generating device may include an induction coil 15 surrounding a heater 50. The induction coil 15 causes the heater 50 to generate heat. The heater 50 is a susceptor, and the heater 50 can generate heat by a magnetic field generated by AC current flowing through the induction coil 15. The magnetic field penetrates the heater 50 and can generate eddy currents within the heater 50. The current can generate heat in the heater 50. Unlike the illustrated example, the heater 50 can be electrically connected to a battery 101. The heater 50 can also generate heat directly by receiving current from the battery 101, without the need for the induction coil 15.

[0037] 2 to 4, the body 10 may have a shape that extends vertically. The body 10 may have a first insertion space 14 therein. The first insertion space 14 may be open to the top. The first insertion space 14 may have a cylindrical shape that extends vertically. The first insertion space 14 may be defined by a body pipe 11 formed inside the body 10. The body pipe 11 may include a lateral wall 111 that surrounds the periphery of the first insertion space 14 and a bottom wall 112 that covers the bottom of the first insertion space 14. The bottom wall 112 may be formed at the bottom of the body pipe 11. The lateral wall 111 of the body pipe 11 may be referred to as an inner lateral wall 111 of the body 10.

[0038] The heater holder 20 may be detachably inserted into the first insertion space 14. The heater holder 20 may provide a second insertion space 24 therein. The second insertion space 24 may be open upward. The second insertion space 24 may have a cylindrical shape. The second insertion space 24 may be defined by a pipe 20' of the heater holder 20. The pipe 20' may include a side wall 21 surrounding the second insertion space 24 and a bottom wall 22 covering the bottom of the second insertion space 24. The bottom wall 22 of the pipe 20' may be referred to as the bottom 22 or the mount 22. The bottom wall 22 of the pipe 20' may form the bottom 22 of the heater holder 20. The heater 50 may be coupled or fixed to the heater holder 20. The pipe 20' may be referred to as a heater holder pipe 20'.

[0039] The extractor 30 may be detachably inserted into the second insertion space 24. The extractor 30 may have a third insertion space 34 therein. The third insertion space 34 may be open on one side. The third insertion space 34 may have a cylindrical shape. The third insertion space 34 may be defined by a side wall 31 and a bottom wall 32 of the extractor 30. The outer circumferential surface of the extractor 30 may have a cylindrical shape.

[0040] The lower end of the stick S is inserted into the third insertion space 34, and the upper end of the stick S can protrude outside the aerosol generating device. The heater 50 can heat the first insertion space 14, the second insertion space 24, and the third insertion space 34. The heater 50 can heat the stick S inserted into the third insertion space 34.

[0041] This allows for easy replacement of the heater 50. Although the insertion spaces 14, 24, and 34 and the heaters 50 arranged in the insertion spaces 14, 24, and 34 may be too small to be easily replaced, the user can easily replace the heater 50 by separating the heater holder 20 from the aerosol generation device and placing a new heater holder 20 in the aerosol generation device.

[0042] Furthermore, foreign matter generated from the sticks S does not remain around the heater 50 or in the heater holder 20, but can be extracted through the extractor 30. This allows the aerosol generating device around the heater 50 to be easily cleaned, improving ease of maintenance. Furthermore, factors that reduce the performance of the heater 50 are reduced, improving the durability of the heater 50 and extending the replacement cycle of the heater 50. Furthermore, factors that deteriorate the taste of the sticks S are reduced.

[0043] The lower end of the heater 50 may be fixed to the mount 22. The heater 50 may extend longitudinally toward the opening of the second insertion space 24. The heater 50 may be formed in a cylindrical shape with an upwardly pointed upper end. As another example, the heater 50 may have a shape extending in the circumferential direction and be attached to the side wall 21 of the heater holder 20. However, this is merely an example, and the shape of the heater 50 is not limited to those described above or illustrated, as long as it can be attached to the heater holder 20 and heat the stick S inserted into the third insertion space 34.

[0044] The heater holder 20 may be formed by insert injection molding the heater 50. The heater holder 20 may have high heat resistance and excellent rigidity. For example, the heater holder 20 may be made of polyetheretherketone (PEEK). However, the material of the heater holder 20 is not limited thereto.

[0045] The through-hole 35 may be formed by opening the bottom wall 32 of the extractor 30. The through-hole 35 may be open at the top and bottom. When the extractor 30 is inserted into the second insertion space 24, the heater 50 may penetrate the through-hole 35 and protrude into the third insertion space 34. When the stick S is inserted into the third insertion space 34, the heater 50 may be inserted under the stick S.

[0046] The induction coil 15 may surround the first insertion space 14. The induction coil 15 may be wound around the side wall 111 of the body pipe 11. The induction coil 15 may surround the heater 50. The induction coil 15 may cause the heater 50 to generate heat. As another example, the heater 50 may be electrically connected directly to a power supply source via terminals formed on the heater holder 20 and receive power to generate heat.

[0047] Therefore, the stick S can be easily separated from the heater 50. A user can easily separate the stick S from the heater 50 by separating the extractor 30 and the heater holder 20 from each other. The stick S inserted inside the extractor 30 can be more easily separated from the extractor 30 by being separated from the heater 50. The stick S can be separated even when the extractor 30 and the heater holder 20 are not separated from each other.

[0048] Furthermore, foreign matter generated from the sticks S does not remain around the heater 50 or in the heater holder 20, but can be extracted through the extractor 30. This makes it easier to clean the aerosol generating device around the heater 50, improving ease of maintenance. Furthermore, factors that reduce the performance of the heater 50 can be reduced, the durability of the heater 50 can be improved, and the replacement cycle of the heater 50 can be extended. Furthermore, factors that deteriorate the taste of the sticks S can be reduced.

[0049] The heater holder 20 may be disposed between the body 10 and the extractor 30. The side wall 111 of the body pipe 11 may surround the side wall 21 of the heater holder 20. The bottom wall 112 of the body pipe 11 may face the bottom wall 22 of the heater holder 20. The side wall 21 of the heater holder 20 may surround the side wall 31 of the extractor 30. The bottom wall 22 of the heater holder 20 may face the bottom wall 32 of the extractor 30.

[0050] The side wall 31 of the extractor 30 may be spaced inward from the side wall 21 of the heater holder 20. The bottom wall 32 of the extractor 30 may be spaced upward from the bottom wall 22 of the heater holder 20. Air flows between the extractor 30 and the heater holder 20, passes through the through-hole 35, and is then provided to the stick S inserted into the third insertion space 34.

[0051] The upper wall 12 of the body 10 may extend horizontally outward from the upper end of the body pipe 11. The upper wall 12 of the body 10 may cover the upper end of the induction coil 15. The outer lateral wall 13 of the body 10 may extend downward from the outer end of the upper wall 12 of the body 10. The outer lateral wall 13 of the body 10 may face the side wall 111 of the body pipe 11. The outer lateral wall 13 of the body 10 may be spaced outward from the body pipe 11. The induction coil 15 may be disposed between the body pipe 11 and the outer lateral wall 13 of the body 10.

[0052] The upper case 40 may be detachably coupled to the body 10. The upper case 40 may be coupled to the upper side of the body 10. The upper case 40 may cover the periphery of the first insertion space 14 and the periphery of the upper part of the body 10. The upper case 40 may have an insertion opening 44. The stick S may be inserted into the insertion opening 44. The upper case 40 may include a cap 45 that opens and closes the insertion opening 44. The cap 45 may slide laterally to open and close the insertion opening 44. The heater holder 20 may be disposed between the body 10 and the upper case 40.

[0053] The upper case 40 may include an upper case body 41. The insertion opening 44 may be formed by opening the upper case body 41 at the top and bottom. The insertion opening 44 may be formed at a position offset from the center of the upper case body 41 to one side. The lower surface of the upper case body 41 may have a shape corresponding to the top wall 12 of the body 10. The lower surface of the upper case body 41 may extend horizontally parallel to the top wall 12 of the body 10. The cap 45 may be installed on the upper side of the upper case body 41 so as to be slidable.

[0054] The upper case 40 may include upper case wings 42. The upper case wings 42 may extend downward from both sides of the upper case body 41. A portion of the side of the upper case body 41 may be exposed between the pair of upper case wings 42 (see FIG. 7). The upper case wings 42 may be referred to as upper case grips 42.

[0055] The extractor 30 may be coupled to the upper case 40. The upper end of the extractor 30 may be coupled to the upper case 40, and the lower end of the extractor 30 may protrude below the upper case 40. The extractor 30 may be coupled to a position corresponding to the insertion opening 44. The insertion opening 44 may be located above the third insertion space 34. The insertion opening 44 may connect the third insertion space 34 to the outside of the aerosol generating device.

[0056] The upper end of the extractor 30 may be coupled to the upper case body 41. The extractor 30 may extend downward from the upper case body 41. The extractor 30 may be disposed between a pair of upper case wings 42.

[0057] The body 10 may include body wings 16. The body wings 16 may extend upward from the edges of the top wall 12 of the body 10. The body wings 16 may be formed in a pair facing each other around the top of the body 10 (see FIG. 7). The body wings 16 may be formed at positions offset from the upper case wings 42.

[0058] When the upper case 40 is coupled to the body 10, the upper case 40 can form the exterior of the upper portion of the aerosol generating device. When the upper case 40 is coupled to the body 10, the body wings 16 can cover the side portions of the upper case body 41 exposed between the upper case wings 42. When the upper case 40 is coupled to the body 10, the upper case wings 42 can cover the outer wall 13 of the body 10.

[0059] Therefore, the user can more easily separate the extractor 30 from the body 10. The user can separate the extractor 30 by grasping the outer surface of the upper case 40 and separating it from the body 10, without the inconvenience of gripping the extractor 30 inserted into the second insertion space 24. For example, the user can easily separate the upper case 40 and the extractor 30 from the body 10 by grasping the pair of upper case wings 42 and pulling them away from the body 10.

[0060] The extractor 30 may include an engagement protrusion 37. The engagement protrusion 37 may protrude outward in a horizontal direction from the outer circumferential surface of the upper end of the extractor 30. A plurality of engagement protrusions 37 may be formed. The plurality of engagement protrusions 37 may be arranged spaced apart from one another in the circumferential direction. The engagement protrusions 37 are inserted into grooves formed in the upper case body 41 around the insertion opening 44, thereby fixing the extractor 30 to the upper case 40. The engagement protrusions 37 may engage with the upper case body 41 in the circumferential direction.

[0061] Therefore, during the process of inserting and removing the stick S, the extractor 30 can be prevented from rotating in the circumferential direction relative to the upper case 40.

[0062] The heater holder 20 may include an extension 23. The extension 23 may be formed on the upper end of the heater holder 20. The extension 23 may extend outward in a horizontal direction from the upper end of the pipe 20'. The extension 23 may have a plate shape. The extension 23 may be formed with one side longer than the other, with the pipe 20' at the center. The extension 23 may be referred to as a heater holder extension 23.

[0063] The extension 23 may have a shape corresponding to the upper wall 12 of the body 10. The extension 23 may be formed horizontally on the upper wall 12 of the body 10. When the pipe 20' is inserted into the first insertion space 14, the extension 23 may be supported or seated on the upper wall 12 of the body 10. The upper wall 12 of the body 10 may support the extension, and the extension 23 may support the pipe 20'. The pipe 20' may hang down from the extension 23 and be spaced upward from the bottom 112 of the body pipe 11 to form an air gap. The outer circumferential surface of the pipe 20' may be spaced inward from the side wall 111 of the body pipe 11 to form an air gap.

[0064] The extension 23 may have a shape corresponding to the lower surface of the upper case body 41. The extension 23 may be formed horizontally on the lower surface of the upper case body 41. When the upper case 40 is coupled to the body 10 and the extractor 30 is inserted into the pipe 20′, the extension 23 may come into contact with the lower surface of the upper case body 41.

[0065] The first connecting member 27 may be fixed to the heater holder 20. For example, the first connecting member 27 may be fixed to the extension 23. The first connecting member 27 may be fixed to the inside or outside of the extension 23. The heater holder 20 may be insert injection molded with the first connecting member 27 and the heater 50.

[0066] The extension 23 may include a first extension 231 and a second extension 232. The first extension 231 may extend to one side from the pipe 20', and the second extension 232 may extend to the other side from the pipe 20'. The first extension 231 may extend longer than the second extension 232. The circumference of the first extension 231 may be greater than the circumference of the second extension 232. The first extension 231 may be wider in the horizontal direction than the second extension 232. With respect to the pipe 20' extending downward from the plate-shaped extension 23, one side may be defined as the first extension 231, and the other side may be defined as the second extension 232. The pipe 20' may extend downward from a portion offset to one side from the center of the extension 23.

[0067] The first connecting member 27 may be fixed to a first extension portion 231 of the extension portion 23, which extends long to one side from the pipe 20′. The first connecting member 27 may have a plate shape. The first connecting member 27 may be widely disposed in the horizontal direction on the first extension portion 23. The position at which the first connecting member 27 is disposed is not limited thereto. For example, the first connecting member 27 may be fixed to the pipe 20′.

[0068] The first connecting member 27 may be made of a magnetic material. The first connecting member 27 may be made of a ferromagnetic material. For example, the first connecting member 27 may be made of stainless steel. However, the material of the first connecting member 27 is not limited thereto.

[0069] The second connecting member 47 may be fixed to the upper case 40. The second connecting member 47 may be fixed inside the upper case body 41. The second connecting member 47 may be disposed adjacent to the lower surface of the upper case body 41. However, the location at which the second connecting member 47 is disposed is not limited thereto. For example, the second connecting member 47 may be fixed to the upper case wing 42. As another example, the second connecting member 47 may be fixed to the extractor 30. The second connecting member 47 may be disposed at a location corresponding to the first connecting member 27.

[0070] The second connecting member 47 can exert an attractive force on the first connecting member 27. For example, the first connecting member 27 can be a ferromagnetic material, and the second connecting member 47 can be a magnet. However, the materials of the first connecting member 27 and the second connecting member 47 are not limited thereto.

[0071] The third connecting member 17 may be fixed inside the body 10. The third connecting member 17 may be disposed adjacent to the upper wall 12 of the body 10. The third connecting member 17 may be disposed at a position corresponding to the first connecting member 27. However, the position at which the third connecting member 17 is disposed is not limited thereto. For example, the third connecting member 17 may be disposed adjacent to the side wall 111 of the body pipe 11. The third connecting member 17 may exert an attractive force on the first connecting member 27. For example, the first connecting member 27 may be a ferromagnetic material, and the third connecting member 17 may be a magnet. However, the materials of the first connecting member 27 and the third connecting member 17 are not limited thereto.

[0072] Referring to FIG. 5, the outer peripheral surface of the side wall 21 of the pipe 20′ may form multiple corners in the circumferential direction. The cross section of the outer peripheral surface of the side wall 21 of the pipe 20′ may be polygonal. The outer peripheral surface of the side wall 21 of the pipe 20′ may include multiple surfaces that extend vertically and are arranged at angles in the circumferential direction. The outer peripheral surface of the pipe 20′ may be spaced inward from the side wall 111 of the body pipe 11 to form an air gap (see FIG. 3). The heater 50 may be surrounded by the extractor 30 and the pipe 20′. The extractor 30 and the pipe 20′ may be spaced apart to form an air gap.

[0073] Therefore, the amount of heat generated by the heater 50 that is transferred to the body pipe 11 (see FIG. 3) through the pipe 20' is reduced, thereby reducing the overheating of the aerosol generating device.

[0074] 6, the guide portion 25 may be formed on the inner circumferential surface of the upper end of the pipe 20′. The guide portion 25 may be disposed between the pipe 20′ and the extension portion 23. The guide portion 25 may contact the opening of the second insertion space 24. The guide portion 25 may extend obliquely downward. The guide portion 25 may extend in the circumferential direction to surround the opening of the second insertion space 24.

[0075] Therefore, the guide portion 25 contacts the lower portion of the extractor 30 and can guide the extractor 30 so that the extractor 30 can be easily inserted into the second insertion space 24 .

[0076] The lower end of the heater 50 may be inserted into and fixed to the mount 22. The heater 50 may include a heater rod 51. The heater rod 51 may form the exterior of the heater 50. The heater rod 51 may extend vertically. The heater rod 51 may have a cylindrical shape. The heater rod 51 may have a hollow portion that opens downward. The hollow portion may extend vertically. The internal hollow portion of the heater rod 51 may be formed in a cylindrical shape. The upper end of the heater rod 51 may be formed to be pointed upward. The heater rod 51 may have high thermal expandability, excellent thermal insulation, and low thermal conductivity. The heater rod 51 may have high rigidity. For example, the heater rod 51 may be made of zirconia. However, the material of the heater rod 51 is not limited thereto.

[0077] The heater 50 may include a heating part 52. The heating part 52 may be inserted into the hollow interior of the heater rod 51. The heating part 52 may be elongated vertically. The heating part 52 may be formed in a cylindrical shape. The heating part 52 may be formed of a resistive metal. Heat generated from the heating part 52 may be transferred to the outside of the heater 50 via the heater rod 51. The heating part 52 may be disposed at a height corresponding to the third insertion space 34 (see FIG. 3). The lower end of the heating part 52 may be adjacent to the lower end of the through-hole 35.

[0078] The heater 50 may include a support 53. The support 53 may be inserted into the hollow of the heater rod 51. The support 53 may be disposed below the heat generating unit 52. The support 53 may be hollow and fixed to the heater rod 51. The support 53 may support the lower part of the heat generating unit 52. The lower end of the support 53 may be supported by the bottom 22a of the mount 22. The hole 22c formed in the center of the mount 22 may be formed by insert injection molding the heater holder 20. The width of the hole 22c may be smaller than the width of the support 53, thereby preventing the support 53 from being detached. The hole 22c may be omitted. The support 53 may have high heat resistance. The support 53 will not be thermally deformed even when heated by the heat generating unit 52. The support 53 may be made of polyamide. However, the material of the support 53 is not limited thereto.

[0079] The heater 50 may include a flange 55. The flange 55 may be formed on the lower end of the heater rod 51. The flange 55 may extend horizontally outward from the outer circumferential surface of the lower end of the heater rod 51. The flange 55 may extend in the circumferential direction of the heater rod 51. The lower end of the heater rod 51 and the flange 55 may be inserted into the mount 22. The mount 22 may be integrally connected to the flange 55 by insert injection molding the heater holder 20 into the heater 50.

[0080] The cross section of the outer peripheral surface of the flange 55 may have a non-circular shape. The inner peripheral surface of the mount 22 may have a shape corresponding to the outer peripheral surface of the flange 55. The inner peripheral surface of the mount 22 and the outer peripheral surface of the flange 55 can be circumferentially interlocked with each other. This prevents the heater 50 from rotating in the circumferential direction relative to the heater holder 20 when the stick S is being inserted into or removed from the heater 50.

[0081] The flange 55 may include a first engagement portion 55a. The first engagement portion 55a may protrude outward from the periphery of the flange 55. The first engagement portion 55a may be formed on a lower portion of the flange 55. The first engagement portion 55a may extend along the periphery of the flange 55.

[0082] The mount 22 may include a second engagement portion 22b. The second engagement portion 22b may protrude inward toward the groove of the mount 22. The second engagement portion 22b may have a shape corresponding to the first engagement portion 55a. The first engagement portion 55a may be located below the second engagement portion 22b. The first engagement portion 55a and the second engagement portion 22b may overlap vertically. The second engagement portion 22a supports the first engagement portion 55a, thereby preventing the flange 55 from coming off the mount 22 upward.

[0083] The extension 23 may extend longer on one side based on the pipe 20' or the second insertion space 24. Based on one horizontal direction, the length L1 of the first extension 231 may be greater than the length of the second extension 232. The length L1 of the first extension 231 may be greater than the diameter L0 of the second insertion space 24. Alternatively, the length L1 of the first extension 231 may be closer to the diameter L0 of the second insertion space 24 than the length of the second extension L2. The first connecting member 27 may have a plate shape. The first connecting member 27 may be horizontally fixed to the first extension 23.

[0084] 7 to 9, the upper case 40 can be separated from the body 10. The heater holder 20 can be detachably coupled to the upper case 40. When the upper case 40 is separated from the body 10, the heater holder 20 can be separated from the body 10 together with the upper case 40 while still coupled to the upper case 40. When the upper case 40 coupled with the heater holder 20 is separated from the body 10, the heater holder 20 can be separated from the upper case 40.

[0085] As another example, the heater holder 20 may be detachably coupled to the extractor 30. When the extractor 30 is separated from the body 10, the heater holder 20 may be separated from the body 10 together with the extractor 30 while still coupled together with the extractor 30. When the extractor 30 to which the heater holder 20 is coupled is separated from the body 10, the heater holder 20 may be separated from the extractor 30.

[0086] The first and second connecting members 27 and 47 may exert an attractive force on each other. The first and second connecting members 27 and 47 may detachably connect the heater holder 20 to the upper case 40 and / or the extractor 30. As an example, the first and second connecting members 27 and 47 may be magnets that exert an attractive force on each other. As another example, one of the first and second connecting members 27 and 47 may be a ferromagnetic material, and the other may be a magnet. However, the first and second connecting members 27 and 47 are not limited to the above, and may be configured to exert an attractive force on each other by electric or magnetic force.

[0087] The extension 23 may form a horizontal surface corresponding to the lower surface of the upper case body 41. The first extension 231 may form a horizontal surface corresponding to the lower surface of the upper case body 41. The upper surface of the extension 23 may be supported horizontally by the upper case body 41. The area of ​​the first extension 231 supported by the upper case body 41 may be larger than that of the second extension 232.

[0088] The first connecting member 27 may have a plate shape. The first connecting member 27 may be horizontally fixed to the first extension 231. The second connecting member 47 may be disposed adjacent to the lower surface of the upper case body 41. The second connecting member 47 may be formed at a position corresponding to the first connecting member 27. Due to the attractive force between the first connecting member 27 and the second connecting member 47, the first extension 231 may come into contact with the lower surface of the upper case body 41.

[0089] As another example, the heater holder 20 may be detachably coupled to the upper case 40 using a screw coupling method. Here, the heater holder 20 may be rotated in a circumferential direction and separated or coupled to the upper case 40 using a screw coupling method. Alternatively, the heater holder 20 and the upper case 40 may be detachably coupled using a fastening screw. As another example, the heater holder 20 may be detachably coupled to the upper case 40 using a snap-fit ​​coupling method. Here, one of the heater holder 20 and the upper case 40 may have a coupling hook, and the other may have a groove into which the hook is coupled. This is merely an example, and the method for detachably coupling the heater holder 20 to the upper case 40 is not limited to the above. The heater holder 20 may be detachably coupled to the upper case 40 using various known methods.

[0090] The heater holder 20 coupled to the upper case 40 can protrude downward from the upper case 40. The heater holder 20 can be disposed between a pair of upper case wings 42. The pipe 20' can protrude downward from the upper case body 41 further than the upper case wings 42. This makes it easier to grip the heater holder 20.

[0091] Therefore, the heater holder 20 can be easily separated from the upper case 40 while still being stably coupled to the upper case 40. Also, the heater 50 can be easily replaced.

[0092] In addition, the stick S can be easily separated from the heater 50. The user can easily separate the stick S from the heater 50 by separating the extractor 30 and the heater holder 20 from each other. The stick S inserted inside the extractor 30 can be separated from the heater 50 more easily.

[0093] 10 and 11, the heater holder 20 can be detachably coupled to the body 10. With the heater holder 20 coupled to the body 10, the upper case 40 and / or the extractor 30 can be separated from the body 10 and the heater holder 20. With the upper case 40 and / or the extractor 30 separated from the body 10 and the heater holder 20, the heater holder 20 can be separated from the body 10.

[0094] The first and third connecting members 27 and 17 may exert an attractive force on each other. The first and third connecting members 27 and 17 may detachably connect the heater holder 20 to the body 10. As an example, the first and third connecting members 27 and 17 may be magnets that exert an attractive force on each other. As another example, one of the first and third connecting members 27 and 17 may be a ferromagnetic material, and the other may be a magnet. However, the present invention is not limited to the above, and the first and third connecting members 27 and 17 may be configured to exert an attractive force on each other by electric or magnetic force.

[0095] The extension 23 covers the upper wall 12 of the body 10, and the pipe 20' may be inserted into the first insertion space 14. The extension 23 may form a horizontal surface corresponding to the upper wall 12 of the body 10. The first extension 231 may correspond to the upper wall 12 on one side of the body 10, and the second extension 232 may correspond to the upper wall 12 on the other side of the body 10. The lower surface of the extension 23 may be supported horizontally on the upper wall 12 of the body 10. The first extension 231 may have a larger area supported by the body 10 than the second extension 232.

[0096] The first connecting member 27 may have a plate shape. The first connecting member 47 may be horizontally fixed to the first extension 231. The third connecting member 17 may be disposed adjacent to the top wall 12 of the body 10. The third connecting member 17 may be formed at a position corresponding to the first connecting member 27. The first connecting member 27 may be disposed on the first extension 231, and the third connecting member 17 may be disposed adjacent to the top wall 12 on one side of the body 10 covered by the first extension 231. Due to the attractive force between the first connecting member 27 and the third connecting member 47, the first extension 231 may come into contact with the top wall 12 of the body 10.

[0097] As another example, the heater holder 20 may be detachably coupled to the body 10 using a screw coupling method. Here, the heater holder 20 may be rotated in a circumferential direction and separated or coupled to the body 10 using a screw coupling method. Alternatively, the heater holder 20 and the body 10 may be detachably coupled using a fastening screw. As another example, the heater holder 20 may be detachably coupled to the body 10 using a snap-fit ​​coupling method. Here, one of the heater holder 20 and the body 10 may have a coupling hook, and the other may have a groove into which the hook is coupled. This is merely an example, and the method of detachably coupling the heater holder 20 to the body 10 is not limited to the above. The heater holder 20 may be detachably coupled to the body 10 using various known methods.

[0098] The extension 23 connected to the body 10 may be exposed upward from the body 10. The extension 23 may be disposed between a pair of body wings 16. The extension 23 may be disposed adjacent to the outer wall 13 of the body 10 between the pair of body wings 16, or may be disposed in a position parallel to the outer wall 13 above and below. This makes it easy to grip the heater holder 20.

[0099] Therefore, the heater holder 20 can be easily separated from the body 10 while still being stably attached to the body 10. Also, the heater 50 can be easily replaced.

[0100] In addition, the stick S can be easily separated from the heater 50. The user can easily separate the stick S from the heater 50 by separating the extractor 30 and the heater holder 20 from each other. The stick S inserted inside the extractor 30 can be separated from the heater 50 more easily.

[0101] The first connecting member 27 may be disposed between the second connecting member 47 and the third connecting member 17. The first connecting member 27 and the second connecting member 47 may exert an attractive force on each other, and the first connecting member 27 and the third connecting member 17 may exert an attractive force on each other. For example, the second connecting member 47 and the third connecting member 17 may each be a magnet, and the first connecting member 27 may be a magnet that exerts an attractive force on each of the second connecting member 47 and the third connecting member 17 between the first connecting member 47 and the third connecting member 17. As another example, the first connecting member 27 may be a ferromagnetic material, and the second connecting member 47 and the third connecting member 17 may each be a magnet. However, the present invention is not limited to the above, and any other configuration may be used as long as the first connecting member 27 exerts an attractive force on the second connecting member 47 and the third connecting member 17 by electric or magnetic force.

[0102] Therefore, the user can selectively attach the heater holder 20 to either the body 10 or the extractor 30 while separating the upper case 40 and / or the extractor 30 from the body 10. In addition, the upper case 40 and / or the extractor 30 can be attached to the body 10 more easily and stably.

[0103] The attractive force between the first connecting member 27 and the second connecting member 47 and the attractive force between the first connecting member 27 and the third connecting member 17 may be different from each other. For example, the attractive force between the first connecting member 27 and the second connecting member 47 may be greater than the attractive force between the first connecting member 27 and the third connecting member 17.

[0104] Therefore, when the upper case 40 and / or the extractor 30 are separated from the body 10, the heater holder 20 can be separated from the body 10 together. Also, when the upper case 40 and / or the extractor 30 are coupled to the body 10 with the heater holder 20 coupled to the upper case 40 and / or the extractor 30, the attractive force between the first coupling member 27 and the third coupling member 17 allows the upper case 40 to be more easily coupled to the body 10, maintaining a more stable coupled state.

[0105] As another example, the attractive force between the first connecting member 27 and the second connecting member 47 may be greater than the attractive force between the first connecting member 27 and the third connecting member 17. Therefore, when the upper case 40 and / or the extractor 30 are separated from the body, the heater holder 20 remains connected to the body 10, and the stick S can be released from the heater 50 and more easily separated from the extractor 30.

[0106] 12 to 14, the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may together define an upwardly open fourth insertion space 340. Each of the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may cover at least one side of the fourth insertion space 340. The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may together form a side periphery of the fourth insertion space 340.

[0107] The side wall 210 of the heater holder 200 may be elongated in the vertical direction. The side wall 310 of the extractor 300 may be elongated in the vertical direction. The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may be spaced apart from the center of the fourth insertion space 340 by an equal distance in the radial direction. The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may be located on the same peripheral extension line of the fourth insertion space 340. The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may extend circumferentially along the periphery of the fourth insertion space 340.

[0108] For example, the heater holder 200 may have a plurality of side walls 210 arranged along the periphery of the bottom wall 22 thereof. A first slit 214 that opens upward and extends vertically may be formed between each of the side walls 210 of the heater holder 200. The heater holder 200 may have a plurality of side walls 210 and a plurality of first slits 214 that are alternately arranged in the circumferential direction along the periphery of the fourth insertion space 340.

[0109] For example, the heater holder 200 may have two side walls 210, which are formed facing each other around the fourth insertion space 340. Two first slits 214 may be formed between the two side walls 210 of the heater holder 200, which are positioned facing each other around the fourth insertion space 340. However, the number of side walls 210 and first slits 214 of the heater holder 200 is not limited thereto, and may be one (see FIG. 17) or three or more.

[0110] For example, a plurality of side walls 310 of the extractor 300 may be arranged along the periphery of the bottom wall 32 of the extractor 300. A second slit 314 extending vertically may be formed between each of the plurality of side walls 310 of the extractor 300. The plurality of side walls 310 and the plurality of second slits 314 of the extractor 300 may be arranged alternately with each other in the circumferential direction along the periphery of the fourth insertion space 340.

[0111] For example, the extractor 300 may be provided with two side walls 310, which are formed facing each other around the fourth insertion space 340. Two second slits 314 may be formed between the two side walls 310 of the extractor 300, which are positioned facing each other around the fourth insertion space 340. However, the number of side walls 310 and second slits 314 of the extractor 300 is not limited thereto, and may be one (see FIG. 17) or three or more.

[0112] The extractor 300 can be inserted inside the heater holder 200. When the extractor 300 is inserted inside the heater holder 200, the side wall 210 of the heater holder 200 can be positioned in the second slit 314, and the side wall 310 of the extractor 300 can be positioned in the first slit 214.

[0113] Therefore, the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 can form a fourth insertion space 340. Also, by reducing the thickness of the wall between the induction coil 15 and the heater 50, the heat generation efficiency of the heater 50 can be improved, which will be described later with reference to FIGS.

[0114] The lower wall 32 of the extractor 300 may cover the lower portion of the fourth insertion space 340. The lower wall 22 of the heater holder 200 may be disposed below the lower wall 32 of the extractor 300 to cover the lower side of the lower wall 32 of the extractor 300. The heater 50 fixed to and protruding from the lower wall 22 of the heater holder 200 may be exposed to the fourth insertion space 340 through a through-hole 35 formed in the lower wall 32 of the extractor 300.

[0115] The lower wall 22 of the heater holder 200 may be spaced upward from the lower wall 112 of the body pipe 11. An air gap may be formed between the lower wall 22 of the heater holder 200 and the lower wall 112 of the body pipe 11. The lower wall 32 of the extractor 300 may be spaced upward from the lower wall 22 of the heater holder 200. An air gap may be formed between the lower wall 32 of the extractor 300 and the lower wall 22 of the heater holder 200. A portion of the heat generated from the heater 50 may be transferred from the lower wall 22 of the heater holder 200 to the side wall 210, and then transferred to the lower wall 112 and the side wall 111 of the body pipe 11 and dispersed. In addition, a portion of the heat generated from the heater 50 may be dispersed around the heater 50 via the air gap formed between the heater holder 200 and the extractor 300.

[0116] Therefore, the amount of heat generated by the heater 50 that is conducted to the internal components of the aerosol generator can be reduced, thereby preventing breakdown of the aerosol generator. Also, the amount of heat generated by the heater 50 that is conducted to the outside of the aerosol generator can be reduced, thereby reducing the phenomenon of heat being transmitted to the user.

[0117] 14, the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 can be interlocked in the radial direction. The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 can support each other in the radially inward and outward directions.

[0118] Therefore, the heater holder 200 and the extractor 300 can be stably positioned without being displaced or shaken in the radial direction relative to each other.

[0119] For example, each of the side walls 210 of the heater holder 200 may include a first recess 211 recessed in the circumferential direction from both end portions 212. Each of the end portions 212 of the side walls 210 of the heater holder 200 may protrude in the circumferential direction beyond the first recess 211. The first recess 211 may be formed on the inner circumferential surface of the side walls 210 of the heater holder 200, but may also be formed on the outer circumferential surface. The end portions 212 of the side walls 210 of the heater holder 200 may be referred to as first protrusions 212.

[0120] Each of the side walls 310 of the extractor 300 may have a second recess 311 recessed in the circumferential direction from both end portions 312. Each of the end portions 312 of the side walls 310 of the extractor 300 may protrude in the circumferential direction beyond the second recess 311. The second recess 311 may be formed on the outer circumferential surface side, but may also be formed on the inner circumferential surface side. The end portions 312 of the side walls 310 of the extractor 300 may be referred to as second protrusions 312.

[0121] The first recessed portion 211 and the second protrusion 312 may be positioned at positions corresponding to each other in the radial direction. The second protrusion 312 may be disposed in the first recessed portion 211. The first protrusion 212 and the second recessed portion 311 may be positioned at positions corresponding to each other in the radial direction. The first protrusion 212 may be disposed in the second recessed portion 311. The second protrusion 312 may overlap the first protrusion 212 in the radial direction.

[0122] Therefore, the first protrusion 212 and the second protrusion 312 support each other in the radial direction, so that the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 can be stably positioned relative to each other.

[0123] This configuration is merely an example, and the configuration and method of radially engaging the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 are not limited thereto.

[0124] As another example, coupling grooves (not shown) may be formed at both ends of the side wall 210 of the heater holder 200, and coupling protrusions (not shown) to be inserted into the coupling grooves may be formed at both ends of the side wall 310 of the extractor 300. The positions of the coupling grooves and the coupling protrusions may be interchanged. As yet another example, both ends of the side wall 210 of the heater holder 200 and both ends of the side wall 310 of the extractor 300 may be formed with corresponding oblique lines to support each other in the radial direction.

[0125] 15(a) shows cross-sectional views of the embodiments of FIGS. 2 to 11 and 15(b) shows cross-sectional views of the embodiments of FIGS. 12 to 14, comparing the thicknesses of the side walls 21, 210 of the heater holders 20, 200 and the side walls 31, 310 of the extractors 30, 300, which are disposed between the induction coil 15 and the heater 50, and the distance between the heater 50 and the induction coil 15. FIG. 16 compares the power consumed to heat the heater 50 to a predetermined temperature (comparison of current consumption) and the time required to heat the heater 50 to a predetermined temperature (comparison of temperature rise rate) for the embodiments of FIGS. 15(a) and 15(b).

[0126] 15 , in Example (a), the wall thickness formed by the side wall 21 of the heater holder 20 and the side wall 31 of the extractor 30, which are disposed between the induction coil 15 and the heater 50, can be defined as A2. In Example (b), the wall thickness formed by the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300, which are disposed between the induction coil 15 and the heater 50, can be defined as B2. In Example (a), the wall formed by the side wall 21 of the heater holder 20 and the side wall 31 of the extractor 30 in the radial direction is double, while in Example (b), the wall formed by the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 in the radial direction is single. B2 may be smaller than A2. Therefore, the distance B1 between the induction coil 15 and the heater 50 in Example (b) may be smaller than the distance A1 between the induction coil 15 and the heater 50 in Example (a).

[0127] Therefore, in the case of embodiment (b), the amount of current consumed to heat the heater 50 to a predetermined temperature can be reduced compared to embodiment (a) (see FIG. 16). Also, in the case of embodiment (b), the speed at which the heater 50 heats up to a predetermined temperature can be increased compared to embodiment (a) (see FIG. 16).

[0128] 17 and 18, the heater holder 200 may have one side wall 210. The first slit 214 and the side wall 210 of the heater holder 200 may be formed at positions facing each other. The extractor 300 may have one side wall 310. The second slit 314 and the side wall 310 of the extractor 300 may be formed at positions facing each other.

[0129] The side wall 310 of the extractor 300 may be formed at a position corresponding to the first slit 214. The side wall 210 of the heater holder 200 may be formed at a position corresponding to the second slit 314. The side wall 310 of the extractor 300 may be disposed in the first slit 214, and the side wall 210 of the heater holder 200 may be disposed in the second slit 314.

[0130] Therefore, it may be easier to clean the heater holder 200 and the extractor 300. To further improve ease of cleaning, the first slit 214 and the second slit 314 may be formed to open in a direction corresponding to the body wing 16.

[0131] The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may define a fourth insertion space 340. The side wall 210 of the heater holder 200 may cover one side of the fourth insertion space 340, and the side wall 310 of the extractor 300 may cover the other side of the fourth insertion space 340. The side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may face each other with the fourth insertion space 340 at the center.

[0132] 1 to 18, an aerosol generating device according to one aspect of the present disclosure includes a body having a first insertion space that is open upward, a heater holder that includes a sidewall and is detachably inserted into the first insertion space, a heater coupled to the heater holder, and an extractor that includes a sidewall and is sized to be inserted into the first insertion space. The sidewall of the heater holder and the sidewall of the extractor together form a second insertion space that is open upward, and may be alternately arranged along the periphery of the second insertion space.

[0133] According to another aspect of the present disclosure, the extractor may be removably inserted into the heater holder.

[0134] According to another aspect of the present disclosure, the heater holder includes a plurality of side walls, and the extractor includes a plurality of side walls that together form the second insertion space, and each of the side walls of the heater holder may be alternately arranged with a corresponding one of the side walls of the extractor in a circumferential direction along the periphery of the second insertion space.

[0135] According to another aspect of the present disclosure, adjacent side walls of the heater holder may be positioned to form a plurality of first slits, adjacent side walls of the extractor may be positioned to form a plurality of second slits, and each of the side walls of the extractor may be insertable into the first slits, and each of the side walls of the heater holder may be insertable into the second slits.

[0136] According to another aspect of the present disclosure, a side wall of the heater holder and a side wall of the extractor may be interlocked to provide radial support to each other.

[0137] According to another aspect of the present disclosure, the sidewall of the heater holder may be recessed from both ends in a circumferential direction to form first recesses in which both ends of the sidewall of the extractor are disposed, and the sidewall of the extractor may be recessed from both ends in a circumferential direction to form second recesses in which both ends of the sidewall of the heater holder are disposed. Both ends of the sidewall of the heater holder and both ends of the sidewall of the extractor may support each other in a radial direction.

[0138] According to another aspect of the present disclosure, the side wall of the heater holder may cover one side of the second insertion space, and the side wall of the extractor may cover the other side of the second insertion space opposite to the one side of the side.

[0139] According to another aspect of the present disclosure, a side wall of the heater holder and a side wall of the extractor may be spaced apart from a center of the second insertion space by an equal distance.

[0140] According to another aspect of the present disclosure, the heater may protrude upward from a lower wall of the heater holder toward an upper opening of the second insertion space, and the lower wall of the extractor may be positioned higher than the lower wall of the heater holder and may have a through-hole through which the heater passes.

[0141] According to another aspect of the present disclosure, the lower wall of the extractor may be spaced apart from the heater around the through-hole and spaced apart upward from the lower wall of the heater holder to form an air gap therebetween.

[0142] According to another aspect of the present disclosure, the lower wall of the heater holder may be spaced upward from the lower wall of the body that defines the lower end of the first insertion space, forming an air gap therebetween.

[0143] According to another aspect of the present disclosure, the aerosol generating device may further include an upper case coupled to the extractor, and a cap coupled to the upper case and positioned to open and close an upper opening of the second insertion space, and the upper case may be detachably coupled to the body to cover one side of the body.

[0144] The specific embodiments or other embodiments of the present disclosure described above are not mutually exclusive or distinct, and the structure or function of any or all elements of the embodiments of the present disclosure described above can be combined with other elements or combined with each other.

[0145] For example, configuration A described in one embodiment of the present disclosure and drawings and configuration B described in another embodiment of the present disclosure and drawings can be combined with each other. That is, even if a combination between configurations is not directly described, the combination is possible unless it is described that the combination is not possible.

[0146] While the embodiments have been described above in accordance with a number of exemplary embodiments, it should be understood that many other variations and embodiments are possible for those skilled in the art that fall within the scope of the principles of the present disclosure. More particularly, various modifications and variations are possible in the components and / or arrangements of the subject combinations within the scope of the present disclosure, the drawings, and the appended claims. In addition to the modifications and variations of the components and / or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. a body having a first insertion space that is open upward; a heater holder including a side wall and removably inserted into the first insertion space; a heater coupled to the heater holder; an extractor including a side wall and removably inserted into the first insertion space; An aerosol generating device, wherein the side wall of the heater holder and the side wall of the extractor together form a second insertion space that is open upward and are arranged alternately with each other along the periphery of the second insertion space.

2. The aerosol generating device according to claim 1 , wherein the extractor is removably inserted into the heater holder.

3. 3. The aerosol generating device of claim 2, wherein the heater holder includes a plurality of side walls, the extractor includes a plurality of side walls that together form the second insertion space, and each of the plurality of side walls of the heater holder is arranged alternately with a corresponding one of the plurality of side walls of the extractor in a circumferential direction along the periphery of the second insertion space.

4. Adjacent side walls of the heater holder are positioned to form a plurality of first slits, Adjacent side walls of the extractor are positioned to form a plurality of second slits; each of the plurality of side walls of the extractor is insertable into one of the plurality of first slits; The aerosol generating device according to claim 3 , wherein each of the side walls of the heater holder is insertable into one of the second slits.

5. 2. The aerosol generating device according to claim 1, wherein the side wall of the heater holder and the side wall of the extractor interlock to provide radial support to each other.

6. the heater holder has a side wall recessed from both ends in a circumferential direction to form first recesses in which both ends of the extractor side wall are disposed; the sidewall of the extractor is recessed from both ends in a circumferential direction to form second recesses in which both ends of the sidewall of the heater holder are disposed; The aerosol generating device according to claim 5 , wherein both ends of the side wall of the heater holder and both ends of the side wall of the extractor support each other in the radial direction.

7. a side wall of the heater holder covering one side of the second insertion space; The aerosol generating device according to claim 1 , wherein the side wall of the extractor covers the other side of the second insertion space opposite to the one side of the side.

8. The aerosol generating device according to claim 1 , wherein the side wall of the heater holder and the side wall of the extractor are spaced apart from the center of the second insertion space by an equal distance.

9. the heater protrudes upward from the lower wall of the heater holder toward the upper opening of the second insertion space, The aerosol generating device according to claim 1 , wherein a lower wall of the extractor is positioned above a lower wall of the heater holder and forms a through-hole through which the heater passes.

10. The aerosol generating device according to claim 9 , wherein a lower wall of the extractor is spaced apart from the heater around the through-hole and spaced apart upward from a lower wall of the heater holder to form an air gap therebetween.

11. The aerosol generating device according to claim 10 , wherein the lower wall of the heater holder is spaced upward from the lower wall of the body that defines the lower end of the first insertion space, forming an air gap therebetween.

12. an upper case coupled to the extractor; a cap coupled to the upper case and positioned to open and close an upper opening of the second insertion space, The aerosol generating device according to claim 1 , wherein the upper case is detachably coupled to the body and covers one side of the body.

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