Aerosol Generator

Abstract

An aerosol generating device is disclosed, which includes a heater holder that forms a middle insertion space having an opening on its upper side, a fixing body that is connected to the bottom of the heater holder, and a heating element that is connected to the upper part of the fixing body and positioned in the middle 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 insulate heat generated from a heat generating element to prevent components other than the heat generating element from overheating.

[0005] Yet another object of the present disclosure is to prevent the heater holder from melting when the heater holder is insert injection molded.

[0006] Yet another object of the present disclosure is to provide an aerosol generating device that improves the power efficiency of the heater.

[0007] 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.

[0008] It is yet another object of the present disclosure to provide an aerosol generating device that is easy to clean and maintain.

[0009] Yet another object of the present disclosure is to prevent the heater from becoming detached from the device during stick insertion.

[0010] It is yet another object of the present disclosure to prevent circumferential rotation of the heater.

[0011] 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).

[0012] Yet another object of the present disclosure is to reduce factors that alter the taste of the stick.

[0013] 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]

[0014] According to one aspect of the subject matter described in this application, an aerosol generating device includes a heater holder that forms a middle insertion space having an opening on the upper side, a fixing body that is connected to the bottom of the heater holder, and a heating element that is connected to the upper part of the fixing body and is positioned in the middle insertion space. [Effects of the Invention]

[0015] According to at least one of the embodiments of the present disclosure, heat generated from a heat generating element can be insulated to prevent components other than the heat generating element from overheating.

[0016] According to at least one embodiment of the present disclosure, an aerosol generating device with improved heater and power efficiency can be provided.

[0017] According to at least one of the embodiments of the present disclosure, an aerosol generating device can be provided that prevents the heater holder from melting when the heater holder is insert injection molded.

[0018] According to at least one of the embodiments of the present disclosure, an aerosol generating device that can be easily attached, detached, or replaced can be provided.

[0019] According to at least one of the embodiments of the present disclosure, overheating of the aerosol generating device can be reduced.

[0020] 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.

[0021] According to at least one of the embodiments of the present disclosure, it is possible to provide an aerosol generating device having a heater that can be easily attached, detached, or replaced.

[0022] 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.

[0023] 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.

[0024] 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).

[0025] According to at least one of the embodiments of the present disclosure, factors that cause deterioration of the stick taste can be reduced.

[0026] 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.

[0027] 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]

[0028] [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. [Figure 19] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 20] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 21] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 22] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 23] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 24] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 25] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 26] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 27] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 28] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 29] 1 illustrates an example of an aerosol generating device according to the present disclosure. [Figure 30] 1 illustrates an example of an aerosol generating device according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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. The first insertion space 14 may be referred to as an outer insertion space 14.

[0042] 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 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 the heater holder pipe 20'. The second insertion space may be referred to as the middle insertion space 24.

[0043] 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. The third insertion space 34 may be referred to as an inner insertion space 34.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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′.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 .

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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 17, the first extension 231 may come into contact with the top wall 12 of the body 10.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 12 to 14, the side wall 210 of the heater holder 200 and the side wall 310 of the extractor 300 may together define a fourth insertion space 340 that is open upward. 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. The fourth insertion space 340 may be referred to as a combined insertion space 340.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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).

[0130] 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).

[0131] 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).

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] 19 and 20 , the lower wall 32 of the extractor 300 may be spaced upward from the lower wall 22 of the heater holder 200. The inlet channel 240 may be formed between the lower wall 22 of the heater holder 200 and the lower wall 32 of the extractor 300. The inlet channel 240 may be formed at a position offset from the side wall 210 of the heater holder 200. The inlet channel 240 may be formed below the side wall 310 of the extractor 300. The inlet channels 240 may be arranged opposite to each other. The inlet channels 240 may be in communication with the through-holes 35.

[0137] When a user holds the stick S inserted into the fourth insertion space 340 in his / her mouth and inhales air, the air flows into the inlet 240 and passes through the through-hole 35 and the stick S in sequence before being provided to the user.

[0138] 20 and 21, the heater 500 of the aerosol generating device may include a heating element 510 and a fixed element 520. The fixed element 520 may be coupled to the bottom 22 of the heater holder 200. The fixed element 520 may protrude upward from the bottom 22 of the heater holder 200. The fixed element 520 may extend vertically. The fixed element 520 may pass through the through-hole 35. The fixed element 520 may be disposed between the bottom 22 of the heater holder 200 and the heating element 510. The fixed element 520 may be made of a material having excellent heat resistance and low thermal conductivity. The fixed element 520 may not be metal. The fixed element 520 may be made of a material that does not generate heat due to the induced magnetic field of the induction coil 15.

[0139] A lower portion 522 of the fixing body 520 may be fixed to the bottom 22 of the heater holder 200. A central portion 521 of the fixing body 520 may protrude from the bottom 22 of the heater holder 200 and be positioned in the inlet 240 and the through-hole 35. An upper portion 523 of the fixing body 520 may be positioned in the through-hole 35 or may pass through the through-hole 35 and be positioned in the coupling insertion space 340 or the inner insertion space 34 (see FIG. 3).

[0140] The lower portion 513 of the heating element 510 may be coupled to the upper portion 523 of the fixed body 520. The heating element 510 may protrude upward from the upper portion 523 of the fixed body 520. The central portion 511 of the heating element 510 may have a cylindrical shape. The upper portion 512 of the heating element 510 may be formed to be tapered upward from the upper end of the central portion 511. The lower portion 513 of the heating element 510 may be open. The upper portion 523 of the fixed body 520 may be inserted into the lower portion 513 of the heating element 510. As another example, the lower portion 513 of the heating element 510 may be inserted into the upper portion 523 of the fixed body 520.

[0141] The heating element 510 can pass through the through-hole 35. The heating element 510 can be surrounded by the extractor 30, 300. The heating element 510 can be located in the coupling insertion space 340 or the inner insertion space 34 (see FIG. 3). The heating element 510 can be a resistive metal. The heating element 510 can be surrounded by the induction coil 15 (see FIG. 3 or 13). The heating element 510 can be heated by the induction coil 15 (see FIG. 3 or 13).

[0142] Therefore, a portion of the heat generated from the heating element 510 is dispersed to the fixed body 520, thereby preventing the heater holder 200 or the extractor 300 from overheating due to the heat. Also, the phenomenon of heat being transferred to the internal electronic components of the device can be reduced, thereby preventing damage or malfunction of the components.

[0143] The height of the lower end of the heating element 510 may be the same as or higher than the lower wall 32 or the through-hole 35 of the extractor 300. For example, the height of the heating element 510 may be t1 higher than the lower wall 32 or the through-hole 35 of the extractor 300, where t1≧0. The circumference of the through-hole 35 may be larger than that of the heating element 510.

[0144] The height of the upper end of the fixing body 520 may be the same as or higher than the lower wall 32 or the through hole 35 of the extractor 300. For example, the height of the upper end of the fixing body 520 may be higher than the lower wall 32 or the through hole 35 of the extractor 300 by t2, where t2≧0. The circumference of the through hole 35 may be larger than the fixing body 520.

[0145] Therefore, the heating element 510 can efficiently heat only the stick S inserted into the extractor 300, and the phenomenon of unnecessary heat transfer to the heater holder 200 and the extractor 300 can be reduced.

[0146] The fixed body 520 may include a first hollow 524. The first hollow 524 may extend vertically. The first hollow 524 may form a thermal insulation layer by an air gap. The first hollow 524 may be open on the upper side. The first hollow 524 may be open on the lower side.

[0147] The heating element 510 may include a second hollow 514. The second hollow 514 may extend vertically. The second hollow 514 may form a thermal insulation layer by an air gap. The second hollow 514 may be open on the bottom. The second hollow 514 may be in communication with the first hollow 524.

[0148] Therefore, the heat generated from the heating element 510 is insulated by the first hollow 524 and the second hollow 514, and the phenomenon of heat being conducted to other components can be reduced.

[0149] The heater holder 200 may be insert injection molded into the fixed body 520. During insert injection molding, the injection material surrounds the outer surface of the lower portion 522 of the fixed body 520 to form the bottom 22 of the heater holder 200. The outer surface of the lower portion 522 of the fixed body 520 and the bottom 22 of the heater holder 200 may be coupled to each other so as to be vertically interlocked. For example, based on the vertical cross section of FIG. 21, an engagement groove 522a (see FIG. 22) formed on the outer surface of the lower portion 522 of the fixed body 520 and a second engagement portion 22b protruding laterally from the bottom 22 of the heater holder 200 may be interlocked in a concave-convex shape to support each other vertically. After the heater holder 200 is insert injection molded into the fixed body 520, the heating element 510 may be assembled to the fixed body 520.

[0150] Since the fixing body 520 has lower heat resistance and thermal conductivity than the heating body 510, the fixing body 520 can cool down quickly during insert injection molding. Therefore, when the heater holder 200 is insert injection molded into the fixing body 520, it is possible to prevent the heater holder 200 from melting immediately after insert injection molding, compared to when the heater holder 200 is insert injection molded directly into the heating body 510.

[0151] The bottom 22 of the heater holder 200 may include a first protrusion 22d. During insert injection molding, a portion of the injection material may flow into the lower side of the first hollow 524 to form the first protrusion 22d. The first protrusion 22d may fill the lower part of the first hollow 524. The first protrusion 22d may protrude upward from the lower end 22a of the bottom 22 of the heater holder 200.

[0152] Therefore, the phenomenon of the fixing body 520 tilting or coming off from the bottom 22 of the heater holder 200 can be prevented.

[0153] The upper portion 523 of the fixing body 520 may be inserted into the lower portion of the second hollow 514 of the heating element 510. The fixing body 520 may be coupled to the heating element 510 by being pressed into it (see FIGS. 24 and 25). The fixing body 520 and the heating element 510 may be fastened together using a hook (see FIGS. 24 and 25). The upper portion 523 of the fixing body 520 may be surrounded and fixed by the lower portion 513 of the heating element 510. The outer circumferential surface of the upper portion 523 of the fixing body 520 may be in close contact with the inner circumferential surface of the lower portion 513 of the heating element 510. The central portion 521 of the fixing body 520 may support the lower end of the lower portion 513 of the heating element 510. As another example, the lower portion 513 of the heating element 510 may be inserted into the upper portion of the first hollow 524 of the fixing body 520. The heating element 510 may be pressed into the fixing body 520.

[0154] This prevents the heating element 510 from tilting or coming off from the fixed element 520. The height t2 at which the upper portion 523 of the fixed element 520 is inserted into the second hollow 514 can be set to an appropriate height to prevent tilting and breaking.

[0155] 22 and 23 , the upper portion 523 of the fixed body 520 may protrude above the central portion 521 of the fixed body 520. The upper portion 523 of the fixed body 520 may be formed in a cylindrical shape. The central portion 521 of the fixed body 520 may be formed in a cylindrical shape. The lower portion 522 of the fixed body 520 may be disposed below the central portion 521 of the fixed body 520. The lower portion 522 of the fixed body 520 may protrude outward from the central portion 521. The lower portion 522 of the fixed body 520 may extend in a circumferential direction. The engagement groove 522a may be formed by recessing the outer circumferential surface of the lower portion 522 of the fixed body 520 inward. The engagement groove 522a may extend in a circumferential direction. The central portion 521, the upper portion 523, and the lower portion 522 of the fixed body 520 may surround a first hollow 524.

[0156] The stopper 528 may be formed between the upper portion 523 of the fixed body 520 and the central portion 521 of the fixed body 520. The outer peripheral surface of the upper portion 523 of the fixed body 520 may be recessed inward relative to the outer peripheral surface of the central portion 521 of the fixed body 520, thereby forming the stopper 528 at the upper end of the central portion 521 of the fixed body 520. The stopper 528 may extend upward in the circumferential direction.

[0157] The first chamfer 526 may be formed on the outer edge of the upper end of the upper portion 523 of the fixing body 520. The first chamfer 526 may be formed obliquely so that its width gradually decreases toward the upper side. The first chamfer 526 may extend in the circumferential direction. The outer circumferential surface of the upper portion 523 of the fixing body 520 may extend downward from the lower end of the first chamfer 526.

[0158] The hook grooves 525 may be formed in the upper portion 523 of the fixing body 520. The hook grooves 525 may be formed by recessing the outer circumferential surface of the upper portion 523 of the fixing body 520 inward. A plurality of the hook grooves 525 may be arranged spaced apart in the circumferential direction along the outer circumferential surface of the upper portion 523 of the fixing body 520. The hook grooves 525 may be located below the first chamfered portion 526.

[0159] A mound 527 may be formed between the central portion 521 of the stationary body 520 and the lower portion 522 of the stationary body 520. The mound 527 may be formed on an upper end of the lower portion 522 of the stationary body 520. The mound 527 may extend from the upper end of the lower portion 522 of the stationary body 520 toward the outer periphery of the central portion 521 of the stationary body 520 with an upward curvature. The mound 527 may support the central portion 521 of the stationary body 520 so that it does not bend from the lower portion 522 of the stationary body 520.

[0160] The central portion 511 of the heating element 510 and the lower portion 513 of the heating element 510 can surround a second hollow 514. The upper portion of the second hollow 514 can be closed and the lower portion can be open. The lower portion 513 of the heating element 510 can extend downward from the periphery of the central portion 511 of the heating element 510. The lower portion 513 of the heating element 510 can extend in the circumferential direction.

[0161] The hooks 515 may be formed on the lower portion 513 of the heating element 510. The hooks 515 may protrude inward from the inner surface of the lower portion 513 of the heating element 510 toward the second hollow 514. A plurality of the hooks 515 may be arranged spaced apart in the circumferential direction along the inner circumferential surface of the lower portion 513 of the heating element 510.

[0162] The second chamfered portion 516 may be formed on the inner edge of the lower end of the lower portion 513 of the heating element 510. The second chamfered portion 516 may be formed obliquely so that its width gradually increases downward. The second chamfered portion 516 may extend in the circumferential direction. The second chamfered portion 516 may be formed on the lower side of the hook 515.

[0163] 24 and 25, the upper part 523 of the fixing body 520 may be inserted into the lower part of the second hollow 514. The width w2 of the outer circumferential surface of the upper part 523 of the fixing body 520 may be greater than or equal to the width w1 of the lower part 513 of the heating element 510. Therefore, the upper part 523 of the fixing body 520 may be pressed into the lower part 513 of the heating element 510 and fixed thereto, thereby preventing the heating element 510 from coming off or breaking from the fixing body 520. The hardness of the heating element 510 may be greater than the hardness of the fixing body 520.

[0164] The width of the upper end of the second chamfered portion 526 may be smaller than the width of the second hollow 514. When the upper portion 523 of the fixed body 520 is inserted into the lower portion of the second hollow 514, the first chamfered portion 526 and the second chamfered portion 516 can slide against each other to guide the insertion of the fixed body 520.

[0165] When the upper portion 523 of the fixed body 520 is inserted into the lower portion of the second hollow 514, the stopper 528 supports the lower end of the heating element 510 and can limit the insertion of the heating element 510. When the upper portion 523 of the fixed body 520 is inserted into the lower portion of the second hollow 514, the inner surface of the lower portion 513 of the heating element 510 can surround the outer peripheral surface of the upper portion 523 of the fixed body 520.

[0166] When the upper portion 523 of the fixing body 520 is inserted into the lower portion of the second hollow 514, the hook 515 may be inserted into or fastened to the hook groove 525. The hook 515 may be fastened to the hook groove 525 in a non-separable snap-fit ​​manner. For example, the hook 515 is formed obliquely upward and inserted into the hook groove 525, and the upper end surfaces of the hook 515 and the hook groove 525 are in flat contact with each other, preventing separation from each other.

[0167] Meanwhile, the hook grooves 525 can be formed by pressing the heating element 510 into the fixed body 520. For example, the hardness of the heating element 510 may be higher than the hardness of the fixed body 520. Therefore, when the heating element 510 is pressed into the fixed body 520, the hooks 515 of the heating element 510 may bite into the outer peripheral surface of the upper portion 523 of the fixed body 520, forming the hook grooves 525.

[0168] 26, the fixture 5200 may be coupled to the bottom 22 of the heater holder 200. The heater holder 200 may be insert injection molded into the fixture 5200. The fixture 5200 may be disposed below the bottom 32 of the extractor 300. The upper surface of the fixture 5200 may face the inlet channel 240. A portion of the inlet channel 240 may be formed between the bottom 32 of the extractor 300 and the upper surface of the fixture 5200. The outer circumferential surface of the fixture 5200 may be engaged with the heater holder 200 in the vertical direction. For example, based on the vertical cross section of FIG. 26, an engagement groove 5220a (see FIG. 28) formed on the outer surface of the lower portion 522 of the fixture 520 and a second engagement portion 22b protruding laterally from the bottom 22 of the heater holder 200 may be engaged in a concave-convex shape to support each other in the vertical direction.

[0169] The lower end of the heating element 5100 may be inserted into the fixed body 5200. The heating element 5100 may be coupled to the fixed body 5200. The heating element 5100 and the fixed body 5200 may be coupled using a hook. The heating element 5100 may protrude upward from the upper surface of the fixed body 5200 and extend long. The heating element 5100 may pass through the through-hole 35. The lower part of the heating element 5100 may be located in the inlet 240, and the middle and upper parts of the heating element 5100 may be located in the extractor 300.

[0170] The third hollow 5140 formed inside the heating element 5100 may extend vertically and open downward. The fixing body 5200 may include a second protrusion 5230. The second protrusion 5230 may protrude upward and fill the lower portion of the third hollow 5140 of the heating element 5100.

[0171] Therefore, the heat generating element 5100 can be prevented from coming off the fixed element 5200 or from tilting.

[0172] 27 and 28, the central portion 5110 of the heating element 5100 may have a cylindrical shape that extends vertically. The upper portion 5120 of the heating element 5100 may be formed to be pointed upward. The lower portion 5130 of the heating element 5100 may extend downward from the central portion 5110. The lower portion 5130 of the heating element 5100 may be formed in a cylindrical shape. The outer peripheral surface of the lower portion 5130 of the heating element 5100 may be recessed inward more than the outer peripheral surface of the central portion 5110.

[0173] The hooks 5150 may protrude outward from the outer circumferential surface of the lower portion 5130 of the heating element 5100. The plurality of hooks 5150 may be arranged spaced apart in the circumferential direction along the outer circumferential surface of the lower portion 5130 of the heating element 5100.

[0174] The fixing body 5200 may have a coupling groove 5240 that opens upward. The coupling groove 5240 may be formed by recessing the upper surface of the fixing body 5200 downward. The coupling groove 5240 extends in the circumferential direction and may have a cylindrical or ring shape. The hook groove 5250 may be formed by recessing the outer circumferential surface of the coupling groove 5240. The second protrusion 5230 may be surrounded by the coupling groove 5240.

[0175] 29 and 30, the periphery of the lower portion 5130 of the heating element 5100 may be inserted into the coupling groove 5240 for coupling. When the periphery of the lower portion 5130 of the heating element 5100 is coupled to the coupling groove 5240, the hook 5150 may be inserted into the hook groove 5250 for coupling. The hook 5150 may be coupled to the hook groove 5250 in a non-separable snap-fit ​​manner. For example, the hook 5150 is formed obliquely upward and inserted into the hook groove 5250, and the upper end surfaces of the hook 515 and the hook groove 5250 are in flat contact with each other, preventing separation from each other.

[0176] The width W3' of the lower portion 5130 of the heating element 5100 may be greater than or equal to the width W4' of the coupling groove 5240. The hardness of the heating element 5100 may be greater than the hardness of the fixing member 5200. Therefore, the lower portion 5130 of the heating element 5100 can be pressed into the coupling groove 5240 and fixed.

[0177] The width w4 of the second protrusion 5230 may be greater than or equal to the width w3 of the third hollow 5140. Therefore, the second protrusion 5230 can be pressed into and fixed in the third hollow 5140, preventing the heating element 5100 from coming off the fixing body 520 or breaking.

[0178] On the other hand, the hook grooves 5250 can be formed by pressing the heating element 5100 into the fixed body 5200. For example, the hardness of the heating element 5100 may be higher than the hardness of the fixed body 5200. Therefore, when the heating element 5100 is pressed into the fixed body 5200, the hooks 5150 of the heating element 5100 can bite into the fixed body 5200 to form the hook grooves 525.

[0179] Referring to Figures 1 to 30, an aerosol generating device according to one aspect of the present disclosure may include a heater holder forming a middle insertion space having an opening on the upper side, a fixing body connected to the bottom of the heater holder, and a heating element connected to the upper part of the fixing body and disposed in the middle insertion space.

[0180] The heating element and the fixing element may be connected to each other by a hook provided on one of the heating element or the fixing element and coupled to a hook groove provided on the other of the heating element or the fixing element.

[0181] A plurality of hooks and a plurality of hook grooves may be arranged correspondingly along the periphery of the lower part of the heating element or the periphery of the upper part of the fixing body.

[0182] The hook and the hook groove may be coupled to the hook groove in a non-separable snap-fit ​​manner.

[0183] The fixing body may protrude upward from the bottom of the heater holder.

[0184] The fixed body may have a first hollow.

[0185] The fixed body may have an upper opening and a lower opening to the first hollow, and the heating element may have a second hollow and may have a lower opening to the second hollow such that the second hollow communicates with the first hollow when the heating element is coupled to the fixed body.

[0186] The diameter of the upper part of the fixed body may be greater than or the same as the diameter of the lower opening to the second hollow, so that the upper part of the fixed body is pressed into the lower opening to the second hollow.

[0187] The outer edge of the upper end of the retainer may be chamfered so that the diameter of the retainer at the upper end is smaller than the diameter of the second hollow.

[0188] The heater holder may include a first protrusion that covers a lower opening to the first hollow and surrounds an outer peripheral surface of a lower portion of the fixed body.

[0189] The fixing body and the heater holder may be coupled to each other in a vertical direction.

[0190] The aerosol generating device may further include a body forming an outer insertion space into which the heater holder is detachably inserted.

[0191] The aerosol generating device may further include an extractor that is detachably inserted into the middle insertion space and forms an inner insertion space having an opening at an upper side, and the heating element may extend into the inner insertion space through a through-hole formed at a bottom of the inner insertion space of the extractor.

[0192] The aerosol generating device may further include an extractor detachably inserted into the middle insertion space. A sidewall of the heater holder and a sidewall of the extractor may together form a coupling insertion space having an opening at an upper side. The heating element may extend into the coupling insertion space through a through-hole formed at a bottom of the extractor.

[0193] The fixing member may be surrounded by the through hole, and a lower end of the heating element may be positioned higher than the through hole.

[0194] The aerosol generating device may further include an induction coil installed on the body to cause the heating element to generate heat.

[0195] The heating element may have a third hollow and may form a lower opening to the third hollow. The fixing member may include a second protrusion that covers the lower opening to the third hollow and surrounds the outer peripheral surface of the lower part of the heating element.

[0196] 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.

[0197] 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.

[0198] 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 heater holder that forms a middle insertion space having an opening on the upper side; a fixing body coupled to the bottom of the heater holder; a heating element coupled to an upper portion of the fixing body and positioned in the middle insertion space.

2. The aerosol generating device of claim 1, wherein the heating element and the fixing element are connected to each other by a hook provided on either the heating element or the fixing element and engaging with a hook groove provided on the other one of the heating element or the fixing element.

3. The aerosol generating device according to claim 2 , wherein a plurality of hooks and a plurality of hook grooves are arranged correspondingly along the periphery of the lower part of the heating element or the periphery of the upper part of the fixing body.

4. The aerosol generating device according to claim 2 , wherein the hook and the hook groove are coupled to the hook groove in a non-separable snap-fit ​​manner.

5. The aerosol generating device according to claim 1 , wherein the fixing body protrudes upward from the bottom of the heater holder.

6. The aerosol generating device according to claim 5 , wherein the fixed body has a first hollow.

7. the fixed body forms an upper opening to the first hollow and a lower opening to the first hollow, The aerosol generating device of claim 6, wherein the heating element has a second hollow and forms a lower opening to the second hollow so that the second hollow communicates with the first hollow when the heating element is coupled to the fixed body.

8. The aerosol generating device of claim 7, wherein the diameter of the upper part of the fixed body is larger than or equal to the diameter of the lower opening to the second hollow so that the upper part of the fixed body is pushed into the lower opening to the second hollow.

9. 9. The aerosol generating device according to claim 8, wherein an outer edge of the upper end of the fixing body is chamfered so that the diameter of the fixing body at the upper end is smaller than the diameter of the second hollow.

10. the heater holder includes a first protrusion that covers a lower opening to the first hollow and surrounds an outer peripheral surface of a lower portion of the fixed body; The aerosol generating device according to claim 6 , wherein the fixing body and the heater holder are coupled to each other so as to be interlocked with each other in the vertical direction.

11. The aerosol generating device according to claim 5 , further comprising a body forming an outer insertion space into which the heater holder is detachably inserted.

12. The extractor is detachably inserted into the middle insertion space and forms an inner insertion space having an opening on an upper side. The heating element extends into the inner insertion space through a through hole formed at the bottom of the inner insertion space of the extractor, The aerosol generating device according to claim 11 , wherein the fixing body is surrounded by the through-hole, and a lower end of the heating element is positioned higher than the through-hole.

13. The apparatus further includes an extractor detachably inserted into the middle insertion space, a side wall of the heater holder and a side wall of the extractor together form a coupling insertion space having an opening on an upper side; The heating element extends into the coupling insertion space through a through hole formed in the bottom of the extractor; the fixed body is surrounded by the through hole, The aerosol generating device according to claim 11 , wherein a lower end of the heating element is positioned higher than the through hole.

14. The aerosol generating device according to claim 11 , further comprising an induction coil installed on the body to cause the heating element to generate heat.

15. The heating element has a third cavity and forms a lower opening to the third cavity; The aerosol generating device according to claim 1 , wherein the fixing body includes a second protrusion that covers a lower opening to the third hollow and surrounds the outer peripheral surface of the lower part of the heating element.

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