Aerosol-generating device

Abstract

An aerosol-generating device according to the present disclosure comprises: a body shaped to define a first insertion space open at a top side of the body; the heater frame comprises a side wall and can be detachably inserted into the first insertion space; a heater coupled to the heater holder; and an extractor including a side wall and detachably insertable into the first insertion space, in which the side wall of the heater holder and the side wall of the extractor together define a second insertion space open at the top side and are alternately disposed along the outer periphery of the second insertion space.

Description

Technical Field

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

[0002] An aerosol generating device is a device that extracts certain components from a medium or substance by forming an aerosol. The medium may contain a multi-component substance. The substance contained in the medium may be a multi-component flavoring substance. For example, the substance contained in the medium may include a nicotine component, an herbal component, and / or a coffee component. Recently, various studies have been conducted on aerosol generating devices. Summary of the invention

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

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

[0005] Yet another object of the present disclosure is to provide an aerosol generating device that can allow a heater to be easily attached / detached or replaced.

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

[0007] Yet another object of the present disclosure is 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 being separated from the aerosol generating device when the wand is inserted.

[0009] Yet another object of the present disclosure is to prevent the heater from rotating in the circumferential direction.

[0010] Yet another object of the present disclosure is to provide an aerosol generating device with an improved (or increased) heater replacement cycle.

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

[0012] Yet another object of the present disclosure is to provide an aerosol generating device that can allow the wand to be easily removed.

[0013] Technical Solution According to one aspect of the subject matter described in the present application, an aerosol generating device includes: a main body, which is shaped to define a first insertion space opened at the top side of the main body; a heater rack, which includes side walls and can be removably inserted into the first insertion space; a heater, which is coupled to the heater rack; and an extractor, which includes side walls and can be removably inserted into the first insertion space, wherein the side walls of the heater rack and the side walls of the extractor jointly define a second insertion space opened at the top side, and are alternately arranged along the periphery of the second insertion space.

[0014] Beneficial effects of the present invention According to at least one of the embodiments of the present disclosure, an aerosol generating device with improved heater efficiency and power efficiency may be provided.

[0015] According to at least one of the embodiments of the present disclosure, an aerosol generating device that allows a heater to be easily attached / detached or replaced may be provided.

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

[0017] According to at least one of the embodiments of the present disclosure, an aerosol generating device that is easy to clean and manage may be provided.

[0018] According to at least one of the embodiments of the present disclosure, the heater may be prevented from being separated from the aerosol generating device when the stick is inserted.

[0019] According to at least one of the embodiments of the present disclosure, the heater can be prevented from rotating in the circumferential direction.

[0020] According to at least one of the embodiments of the present disclosure, an aerosol generating device with an improved (or increased) heater replacement cycle may be provided.

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

[0022] According to at least one of the embodiments of the present disclosure, an aerosol generating device that allows a stick to be easily removed may be provided.

[0023] According to the following detailed description, the further applicable scope of the present disclosure will become easy to understand. However, it should be understood that since various changes and modifications within the concept and scope of the present disclosure can be clearly understood by those skilled in the art, the detailed description and specific embodiments (such as preferred embodiments) of the present disclosure are given only by way of example. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figures 1 to 18An example of an aerosol generating device according to the present disclosure is shown. DETAILED DESCRIPTION

[0025] Now, a detailed description will be given according to exemplary embodiments disclosed herein with reference to the accompanying drawings. For the sake of brief description with reference to the accompanying drawings, the same or equivalent components are provided with the same or similar reference numerals, and description thereof will not be repeated.

[0026] In the following description, suffixes such as "module" and "unit" may be used to refer to elements or components. Such suffixes are used herein only to facilitate the description of the specification, and these suffixes themselves are not intended to give any special meaning or function.

[0027] In the present disclosure, for the sake of brevity, the contents known to those skilled in the art are generally omitted. The accompanying drawings are used to help easily understand the technical concept of the present disclosure, and it should be understood that the concept of the present disclosure is not limited by the accompanying drawings. The concept of the present disclosure should be interpreted as extending to any variants, equivalents and alternatives other than the accompanying drawings.

[0028] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.

[0029] It will be understood that when a component is referred to as being "connected to" or "coupled to" another component, the component may be directly connected to or directly coupled to the other component, or intervening components may be present. On the other hand, when a component is referred to as being "directly connected to" or "directly coupled to" another component, there are no intervening components.

[0030] As used herein, a singular expression is intended to include a plural expression unless the context clearly indicates otherwise.

[0031] Reference Figure 1 and Figure 2 , the aerosol generating device may include at least one of a battery 101, a controller 102, and a sensor 103. At least one of the battery 101, the controller 102, and the sensor 103 may be disposed in a body 10 of the aerosol generating device. The body 10 may provide a space opened at the top to allow a stick S to be inserted into the space. The lower end of the stick S may be inserted into the body 10, and the upper end of the stick S may protrude to the outside of the body 10. The user may inhale air while holding the upper end of the stick S exposed to the outside in his or her mouth.

[0032] The heater 50 may heat the rod S. The heater 50 may extend upward in an elongated manner in a space in which the rod S is inserted. The heater 50 may be inserted into a lower portion of the rod S. The heater 50 may be a resistance heater.

[0033] The battery 101 may supply power to operate the components of the aerosol generating device. The battery 101 may supply power to at least one of the controller 102, the sensor 103, the induction coil 15, and the heater 50. The battery 101 may supply power required to operate a display, a motor, etc. installed at the aerosol generating device.

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

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

[0036] The aerosol generating device may include an induction coil 15 surrounding a heater 50. The induction coil 15 may cause the heater 50 to generate heat. The heater 50, which functions as a susceptor, may generate heat through a magnetic field generated by an AC current flowing through the induction coil 15. The magnetic field may pass through the heater 50 and may generate eddy currents in the heater 50. The current may cause heat to be generated in the heater 50. Figure 1 Unlike the example shown in FIG. 1 , the heater 50 may be electrically connected to the battery 101. In the case where the induction coil 15 is not required, the heater 50 may directly generate heat by using the current supplied from the battery 101.

[0037] Reference Figures 2 to 4 , the body 10 may have a vertically elongated shape. A first insertion space 14 may be provided in the body 10. The first insertion space 14 may be open at the top. The first insertion space 14 may have a vertically elongated cylindrical shape. The first insertion space 14 may be defined by a body tube 11 disposed in the body 10. The body tube 11 may include a side wall 111 surrounding the outer circumference of the first insertion space 14 and a lower wall 112 covering the bottom of the first insertion space 14. The lower wall 112 may be formed at the bottom of the body tube 11. The side wall 111 of the body tube 11 may be referred to as an inner side wall 111 of the body 10.

[0038] The heater rack 20 may be detachably inserted into the first insertion space 14. A second insertion space 24 may be provided in the heater rack 20. The second insertion space 24 may be open at the top. The second insertion space 24 may have a cylindrical shape. The second insertion space 24 may be defined by a tube 20' of the heater rack 20. The tube 20' may include a side wall 21 surrounding the periphery of the second insertion space 24 and a lower wall 22 covering the bottom of the second insertion space 24. The lower wall 22 of the tube 20' may be referred to as a bottom 22 or a mounting portion 22. The lower wall 22 of the tube 20' may define the bottom 22 of the heater rack 20. The heater 50 may be coupled or fixed to the heater rack 20. The tube 20' may be referred to as a heater rack tube 20'.

[0039] An extractor 30 may be detachably inserted into the second insertion space 24. A third insertion space 34 may be provided in the extractor 30. The third insertion space 34 may be open at 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 lower 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 may be inserted into the third insertion space 34, and the upper end of the stick S may protrude outside the aerosol generating device. The heater 50 may heat the first insertion space 14, the second insertion space 24, and the third insertion space 34. The heater 50 may heat the stick S inserted into the third insertion space 34.

[0041] Therefore, the heater 50 can be easily replaced. The insertion spaces 14, 24, 34 and the heater 50 disposed therein may be difficult to replace due to their small size. However, by removing the heater holder 20 from the aerosol generating device and placing a new heater holder 20 into the aerosol generating device, the user can easily replace the heater 50.

[0042] In addition, foreign matter (or impurities) generated from the stick S can be obtained by the extractor 30, so that no foreign matter remains near the heater 50 and on the heater rack 20. Therefore, cleaning of the aerosol generating device (that is, cleaning near the heater 50) can be easier, and the convenience of management can be improved. In addition, the replacement cycle of the heater 50 can be extended by reducing factors that reduce the performance of the heater 50 and by improving the durability of the heater 50. In addition, factors that change the taste of the stick S can be reduced.

[0043] The lower end of the heater 50 may be fixed to the mounting portion 22. The heater 50 may be elongated toward the opening of the second insertion space 24. The heater 50 may be formed in a cylindrical shape and may have a pointed upper end that narrows toward the top. As another example, the heater 50 may have a shape extending in the circumferential direction and may be coupled to the side wall 21 of the heater rack 20. However, this is merely an example. The shape of the heater 50 is not limited to the shape described above or shown in the drawings, and any other shape may be used as long as the heater 50 can be coupled to the heater rack 20 and can heat the rod S inserted into the third insertion space 34.

[0044] The heater frame 20 may be insert-injected to the heater 50. The heater frame 20 may have high heat resistance and excellent rigidity. For example, the heater frame 20 may be made of polyetheretherketone (PEEK). However, the material of the heater frame 20 is not limited thereto.

[0045] The lower wall 32 of the extractor 30 may be opened to define a through hole 35. The through hole 35 may be opened at the top and the bottom. When the extractor 30 is inserted into the second insertion space 24, the heater 50 may protrude into the third insertion space 34 by passing through the through hole 35. When the rod S is inserted into the third insertion space 34, the heater 50 may be inserted into the lower portion of the rod 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 tube 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 generate heat by using power supplied from a power source that is directly electrically connected to the heater 50 via a terminal provided at the heater holder 20.

[0047] Therefore, the stick S can be easily removed from the heater 50. The user can easily remove the stick S from the heater 50 by separating the extractor 30 and the heater rack 20 from each other. When the stick S inserted in the extractor 30 is removed from the heater 50, the stick S can be more easily separated from the extractor 30. The stick S can be removed without separating the extractor 30 and the heater rack 20 from each other.

[0048] In addition, foreign matter generated by the stick S can be obtained by the extractor 30, so that no foreign matter remains near the heater 50 and on the heater rack 20. Therefore, cleaning of the aerosol generating device (that is, cleaning near the heater 50) can be easier, and the convenience of management can be improved. In addition, the replacement cycle of the heater 50 can be extended by reducing factors that reduce the performance of the heater 50 and by improving the durability of the heater 50. In addition, factors that change the taste of the stick S can be reduced.

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

[0050] The side wall 31 of the extractor 30 may be spaced inwardly from the side wall 21 of the heater rack 20. The lower wall 32 of the extractor 30 may be spaced upwardly from the lower wall 22 of the heater rack 20. Air may flow between the extractor 30 and the heater rack 20, pass through the through-holes 35, and then be delivered to the rod S inserted into the third insertion space 34.

[0051] The upper wall 12 of the body 10 may extend outward from the upper end of the body tube 11 in a horizontal direction. The upper wall 12 of the body 10 may cover the upper end of the induction coil 15. The outer sidewall 13 of the body 10 may extend downward from the outer end of the upper wall 12 of the body 10. The outer sidewall 13 of the body 10 may face the sidewall 111 of the body tube 11. The outer sidewall 13 of the body 10 may be spaced outward from the body tube 11. The induction coil 15 may be disposed between the body tube 11 and the outer sidewall 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 circumference of the first insertion space 14 and the circumference of the upper portion of the body 10. The upper case 40 may have an insertion hole 44. The rod S may be inserted into the insertion hole 44. The upper case 40 may include a cover 45 that opens and closes the insertion hole 44. The cover 45 may slide laterally to open and close the insertion hole 44. The heater rack 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 upper case body 41 may be opened at the top and bottom to define an insertion hole 44. The insertion hole 44 may be formed at a position eccentric to one side from the center of the upper case body 41. The lower surface of the upper case body 41 may have a shape corresponding to the upper wall 12 of the main body 10. The lower surface of the upper case body 41 may extend in the horizontal direction to be parallel to the upper wall 12 of the main body 10. The cover 45 may be installed to be able to slide on the upper case body 41.

[0054] The upper shell 40 may include an upper shell wing 42. The upper shell wing 42 may extend downward from each of the two sides of the upper shell body 41. A portion of the lateral portion of the upper shell body 41 may be exposed between a pair of upper shell wings 42 (see Figure 7 ). The upper shell wing portion 42 may be referred to as an upper shell grip 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 hole 44. The insertion hole 44 may be located above the third insertion space 34. The insertion hole 44 may allow the third insertion space 34 and the outside of the aerosol generating device to communicate with each other.

[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 main body 10 may include a main body wing 16. The main body wing 16 may extend upward from the edge of the upper wall 12 of the main body 10. A pair of main body wings 16 may be disposed opposite to each other relative to the upper portion of the main body 10 (see Figure 7 ). The main body wing portion 16 may be formed at a position that does not overlap with the upper shell wing portion 42.

[0058] When the upper shell 40 is coupled to the main body 10, the upper shell 40 may define the exterior (or appearance) of the upper portion of the aerosol generating device. When the upper shell 40 is coupled to the main body 10, the main body wing 16 may cover the lateral portion of the upper shell main body 41 exposed between the pair of upper shell wing 42. When the upper shell 40 is coupled to the main body 10, the upper shell wing 42 may cover the outer side wall 13 of the main body 10.

[0059] Therefore, the user can more easily remove the extractor 30 from the main body 10. Without the inconvenience of gripping the extractor 30 inserted into the second insertion space 24, the user can remove the extractor 30 by separating the upper case 40 from the main body 10 while gripping the outer portion of the upper case 40. For example, the user can easily remove the upper case 40 and the extractor 30 from the main body 10 by gripping the pair of upper case wings 42 and pulling the pair of upper case wings 42 from the main body 10.

[0060] The extractor 30 may include an engagement protrusion 37. The engagement protrusion 37 may protrude outward from the upper outer peripheral surface of the extractor 30 in the horizontal direction. A plurality of engagement protrusions 37 may be provided. A plurality of engagement protrusions 26 may be spaced apart from each other in the circumferential direction. The engagement protrusion 37 may be inserted and stuck in a recess formed in the upper shell body 41 and located near the insertion hole 44, which fixes the extractor 30 to the upper shell 40. The engagement protrusion 37 may be engaged with the upper shell body 41 in the circumferential direction.

[0061] Therefore, during the insertion and removal of the stick S, the extractor 30 may be prevented from rotating in the circumferential direction relative to the upper case 40 .

[0062] The heater rack 20 may include an extension 23. The extension 23 may be formed at the upper end of the heater rack 20. The extension 23 may extend outward from the upper end of the tube 20' in a horizontal direction. The extension 23 may have a plate shape. One side of the extension 23 may be longer relative to the tube 20'. The extension 23 may be referred to as a heater rack extension 23.

[0063] The extension 23 may have a shape corresponding to the upper wall 12 of the main body 10. The extension 23 may be formed horizontally to the upper wall 12 of the main body 10. When the tube 20' is inserted into the first insertion space 14, the extension 23 may be supported or seated on the upper wall 12 of the main body 10. The upper wall 12 of the main body 10 may support the extension 23, and the extension 23 may support the tube 20'. The tube 20' may be spaced apart upward from the lower wall 112 of the main body tube 11 while being suspended on the extension 23, thereby forming an air gap. The outer peripheral surface of the tube 20' may be spaced apart inward from the side wall 111 of the main body tube 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 horizontally formed to the lower surface of the upper case body 41. When the upper case 40 is coupled to the body 10, the extractor 30 may be inserted into the tube 20' so that the extension 23 contacts the lower surface of the upper case body 41.

[0065] The first coupling member 27 may be fixed to the heater rack 20. For example, the first coupling member 27 may be fixed to the extension 23. The first coupling member 27 may be fixed to the inner surface or the outer surface of the extension 23. The heater rack 20 may be molded to the first coupling member 27 and the heater 50 in an insert injection manner.

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

[0067] In the portion of the extension 23, the first coupling member 27 may be fixed to the first extension 231 that extends longer to one side relative to the tube 20'. The first coupling member 27 may have a plate shape. The first coupling member 27 may be widely disposed at the first extension 23 in the horizontal direction. The position where the first coupling member 27 is disposed is not limited thereto. For example, the first coupling member 27 may be fixed to the tube 20'.

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

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

[0070] An attractive force may act between the second coupling member 47 and the first coupling member 27. For example, the first coupling member 27 may be a ferromagnetic material, and the second coupling member 47 may be a magnet. However, the material of the first coupling member 27 and the material of the second coupling member 47 are not limited thereto.

[0071] The third coupling member 17 may be fixed inside the body 10. The third coupling member 17 may be adjacent to the upper wall 12 of the body 10. The third coupling member 17 may be disposed at a position corresponding to the first coupling member 27. However, the position where the third coupling member 17 is disposed is not limited thereto. For example, the third coupling member 17 may be adjacent to the side wall 111 of the body tube 11. An attractive force may act between the third coupling member 17 and the first coupling member 27. For example, the first coupling member 27 may be a ferromagnetic material, and the third coupling member 17 may be a magnet. However, the material of the first coupling member 27 and the material of the third coupling member 17 are not limited thereto.

[0072] Reference Figure 5 , the outer peripheral surface of the side wall 21 of the tube 20' may form a plurality of angles in the circumferential direction. The transverse plane or cross section of the outer peripheral surface of the side wall 21 of the tube 20' may have a polygonal shape. The outer peripheral surface of the side wall 21 of the tube 20' may be vertically elongated and may include a plurality of surfaces arranged at an angle to each other along the circumferential direction. The outer peripheral surface of the tube 20' may be spaced inwardly from the side wall 111 of the main body tube 11 to form an air gap (see Figure 3 ). The extractor 30 and the tube 20' may surround the heater 50. The extractor 30 and the tube 20' may be spaced apart from each other to form an air gap.

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

[0074] Reference Figure 6 The guide portion 25 may be formed on the upper inner circumferential surface of the tube 20'. The guide portion 25 may be disposed between the tube 20' and the extension portion 23. The guide portion 25 may be connected to the opening of the second insertion space 24. The guide portion 25 may be inclined 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 part 25 may come into contact with the lower portion of the extractor 30 , thereby guiding the extractor 30 to be easily inserted into the second insertion space 24 .

[0076] The lower end of the heater 50 may be inserted into the mounting portion 22 and fixed to the mounting portion 22. The heater 50 may include a heater rod 51. The heater rod 51 may define the exterior of the heater 50. The heater rod 51 may be vertically elongated. The heater rod 51 may have a cylindrical shape. A hollow portion opened at the bottom may be provided in the heater rod 51. The hollow portion may be vertically elongated. The hollow portion of the heater rod 51 may have a cylindrical shape. The heater rod 51 may have a pointed upper end that narrows toward the top. The heater rod 51 may have high thermal expansion, 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 zirconium oxide. However, the material of the heater rod 51 is not limited thereto.

[0077] The heater 50 may include a heating portion 52. The heating portion 52 may be inserted into the hollow portion of the heater rod 51. The heating portion 52 may be vertically elongated. The heating portion 52 may have a cylindrical shape. The heating portion 52 may be made of a resistive metal. Heat generated from the heating portion 52 may be transferred to the outside of the heater 50 through the heater rod 51. The heating portion 52 may be disposed at a position adjacent to the third insertion space 34 (see Figure 3 The lower end of the heating portion 52 may be adjacent to the lower end of the through hole 35.

[0078] The heater 50 may include a support portion 53. The support portion 53 may be inserted into the hollow portion of the heater rod 51. The support portion 53 may be disposed below the heating portion 52. The support portion 53 may be fixed to the heater rod 51 in the hollow portion. The support portion 53 may support the lower portion of the heating portion 52. The lower end of the support portion 53 may be supported by the bottom 22a of the mounting portion 22. The hole 22c disposed at the center of the mounting portion 22 may be formed by a process of insert injection molding the heater rack 20. The width of the hole 22c may be smaller than the width of the support portion 53, thereby preventing the separation of the support portion 53. The hole 22c may not be included. The support portion 53 may have high heat resistance. The support portion 53 is not thermally deformed by the heat generated by the heating portion 52. The support portion 53 may be made of polyamide. However, the material of the support portion 53 is not limited thereto.

[0079] The heater 50 may include a flange 55. The flange 55 may be formed at the lower end of the heater rod 51. The flange 55 may extend outward from the outer peripheral surface of the lower end of the heater rod 51 in a horizontal direction. The flange 55 may extend in a circumferential direction of the heater rod 51. The lower end of the heater rod 51 and the flange 55 may be inserted into the mounting portion 22. When the heater holder 20 is insert-injected to the heater 50, the mounting portion 22 may be integrally coupled to the flange 55.

[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 mounting portion 22 may have a shape corresponding to the outer peripheral surface of the flange 55. The inner peripheral surface of the mounting portion 22 and the outer peripheral surface of the flange 55 may be engaged with each other in the circumferential direction. Therefore, when the rod S is inserted into or removed from the heater 50, the heater 50 may be prevented from rotating in the circumferential direction relative to the heater holder 20.

[0081] The flange 55 may include a first engaging portion 55a. The first engaging portion 55a may protrude outward from the outer circumference of the flange 55. The first engaging portion 55a may be formed at a lower portion of the flange 55. The first engaging portion 55a may extend along the outer circumference of the flange 55.

[0082] The mounting portion 22 may include a second engaging portion 22b. The second engaging portion 22b may protrude inwardly toward the recess of the mounting portion 22. The second engaging portion 22b may have a shape corresponding to the first engaging portion 55a. The first engaging portion 55a may be disposed below the second engaging portion 22b. The first engaging portion 55a and the second engaging portion 22b may overlap vertically. The second engaging portion 22b may support the first engaging portion 55a, thereby preventing the flange 55 from being separated upward from the mounting portion 22.

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

[0084] Reference Figures 7 to 9 , the upper case 40 may be detachable from the main body 10. The heater rack 20 may be detachably coupled to the upper case 40. When the upper case 40 is detached from the main body 10, the heater rack 20 may be removed from the main body 10 together with the upper case 40 while being coupled to the upper case 40. In a state where the upper case 40 coupled with the heater rack 20 is separated from the main body 10, the heater rack 20 may be detachable from the upper case 40.

[0085] In another example, the heater rack 20 may be detachably coupled to the extractor 30. When the extractor 30 is detached from the body 10, the heater rack 20 may be removed from the body 10 together with the extractor 30 while being coupled to the extractor 30. In a state where the extractor 30 coupled with the heater rack 20 is separated from the body 10, the heater rack 20 may be detached from the extractor 30.

[0086] The first coupling member 27 and the second coupling member 47 may exert an attraction force on each other. The first coupling member 27 and the second coupling member 47 may enable the heater rack 20 to be detachably coupled to the upper shell 40 and / or the extractor 30. In one example, the first coupling member 27 and the second coupling member 47 may be magnets that attract each other. In another example, one of the first coupling member 27 and the second coupling member 47 may be a ferromagnetic material, and the other may be a magnet. However, without being limited to the above examples, any other configuration may be used as long as the first coupling member 27 and the second coupling member 47 attract each other through an electric force or a magnetic force.

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

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

[0089] In another example, the heater rack 20 may be detachably coupled to the upper shell 40 by threaded coupling. In this case, the heater rack 20 may be rotated in the circumferential direction so that the heater rack 20 is removed from or coupled to the upper shell 40 by threaded coupling. Alternatively, the heater rack 20 and the upper shell 40 may be detachably coupled to each other using a fastening screw. In another example, the heater rack 20 may be detachably coupled to the upper shell 40 by snap-fit ​​coupling. In this case, one of the heater rack 20 and the upper shell 40 may have a coupling hook, and the other may have a recess coupled with the hook. However, this is merely an example, and the method of detachably coupling the heater rack 20 to the upper shell 40 is not limited to the above-described method. The heater rack 20 may be detachably coupled to the upper shell 40 in various known methods.

[0090] The heater rack 20 coupled to the upper case 40 may protrude downward from the upper case 40. The heater rack 20 may be disposed between a pair of upper case wings 42. The tube 20' may protrude downward from the upper case body 41 in a manner that it protrudes further downward than the upper case wings 42. This may make it easier to hold the heater rack 20.

[0091] Therefore, the heater holder 20 can not only be easily detached from the upper case 40 but also can be firmly coupled to the upper case 40. In addition, the heater 50 can be conveniently replaced.

[0092] In addition, the stick S can be easily removed from the heater 50. The user can easily remove the stick S from the heater 50 by separating the extractor 30 and the heater rack 20 from each other. When the stick S inserted into the extractor 30 is separated from the heater 50, the stick S can be more easily removed from the extractor 30.

[0093] Reference Fig.10 and Fig.11 , the heater rack 20 may be detachably coupled to the body 10. In a state where the heater rack 20 is coupled to the body 10, the upper case 40 and / or the extractor 30 may be detached from the body 10 and the heater rack 20. In a state where the upper case 40 and / or the extractor 30 are removed from the body 10 and the heater rack 20, the heater rack 20 may be detached from the body 10.

[0094] The first coupling member 27 and the third coupling member 17 may exert an attraction force on each other. The first coupling member 27 and the third coupling member 17 may allow the heater rack 20 to be detachably coupled to the body 10. In one example, the first coupling member 27 and the third coupling member 17 may be magnets that attract each other. In another example, one of the first coupling member 27 and the third coupling member 17 may be a ferromagnetic material, and the other may be a magnet. However, it is not limited to the above examples, and any other configuration may be used as long as the first coupling member 27 and the third coupling member 17 attract each other through an electric field force or a magnetic field force.

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

[0096] The first coupling member 27 may have a plate shape. The first coupling member 27 may be horizontally fixed to the first extension 231. The third coupling member 17 may be disposed adjacent to the upper wall 12 of the main body 10. The third coupling member 17 may be formed at a position corresponding to the first coupling member 27. The first coupling member 27 may be disposed at the first extension 231, and the third coupling member 17 may be disposed adjacent to the upper wall 12 of the main body 10 on one side covered by the first extension 231. Due to the attraction acting between the first coupling member 27 and the third coupling member 47, the first extension 231 may contact the upper wall 12 of the main body 10.

[0097] In another example, the heater rack 20 may be detachably coupled to the main body 10 by a threaded coupling. In this case, the heater rack 20 may be rotated in the circumferential direction so that the heater rack 20 is removed from or coupled to the main body 10 by a threaded coupling. Alternatively, the heater rack 20 and the main body 10 may be detachably coupled to each other using a fastening screw. In another example, the heater rack 20 may be detachably coupled to the main body 10 by a snap coupling. In this case, one of the heater rack 20 and the main body 10 may have a coupling hook, and the other may have a recess coupled with the hook. However, this is merely an example, and the method of detachably coupling the heater rack 20 to the main body 10 is not limited to those described above. The heater rack 20 may be detachably coupled to the main body 10 in various known methods.

[0098] The extension 23 coupled to the body 10 may be exposed upward from the body 10. The extension 23 may be disposed between the pair of body wings 16. The extension 23 may be disposed adjacent to the outer sidewall 13 of the body 10, or may be disposed at a position between the pair of body wings 16 vertically parallel to the outer sidewall 13. This may make it easier to hold the heater rack 20.

[0099] Therefore, the heater holder 20 can not only be easily detached from the main body 10 but also can be firmly coupled to the main body 10. In addition, the heater 50 can be conveniently replaced.

[0100] In addition, the stick S can be easily removed from the heater 50. The user can easily remove the stick S from the heater 50 by separating the extractor 30 and the heater rack 20 from each other. When the stick S inserted in the extractor 30 is separated from the heater 50, the stick S can be more easily removed from the extractor 30.

[0101] The first coupling member 27 may be disposed between the second coupling member 47 and the third coupling member 17. The first coupling member 27 and the second coupling member 47 may exert an attraction force on each other, and the first coupling member 27 and the third coupling member 17 may exert an attraction force on each other. For example, each of the second coupling member 47 and the third coupling member 17 may be a magnet, and the first coupling member 27 may be a magnet that exerts an attraction force on each of the second coupling member 47 and the third coupling member 17 between the second coupling member 47 and the third coupling member 17. In another example, the first coupling member 27 may be a ferromagnetic material, and each of the second coupling member 47 and the third coupling member 17 may be a magnet. However, without being limited to the above examples, any other configuration may be used as long as the first coupling member 27 and the second coupling member 47 are attracted to each other by an electric field force or a magnetic field force, and the first coupling member 27 and the third coupling member 17 are attracted to each other by an electric field force or a magnetic field force.

[0102] Therefore, with the upper case 40 and / or the extractor 30 removed from the body 10, the user can selectively couple the heater rack 20 to either the body 10 or the extractor 30. In addition, the upper case 40 and / or the extractor 30 can be coupled to the body 10 more easily and securely.

[0103] The attraction between the first and second coupling members 27 and 47 may be different from the attraction between the first and third coupling members 17. For example, the attraction between the first and second coupling members 27 and 47 may be greater than the attraction between the first and third coupling members 17.

[0104] Therefore, when the upper case 40 and / or the extractor 30 are detached from the main body 10, the heater rack 20 can be removed from the main body 10 together. In addition, when the upper case 40 and / or the extractor 30 are coupled to the main body 10 while the heater rack 20 is coupled to the upper case 40 and / or the extractor 30, due to the attraction between the first coupling member 27 and the third coupling member 17, the upper case 40 can be more easily coupled to the main body 10 and can maintain a more stable coupled state.

[0105] In another example, the attraction between the first coupling member 27 and the third coupling member 17 may be greater than the attraction between the first coupling member 27 and the second coupling member 47. Therefore, when the upper case 40 and / or the extractor 30 are detached from the body 10, the heater rack 20 may remain coupled to the body 10, and since the rod S is separated from the heater 50, the rod S may be more easily removed from the extractor 30.

[0106] Reference Figure 12 to Figure 14 , the sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may together define a fourth insertion space 340 opened at the top. The sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may each cover at least one side of the fourth insertion space 340. The sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may together define a lateral periphery of the fourth insertion space 340.

[0107] The side wall 210 of the heater rack 200 may be extended up and down or vertically. The side wall 310 of the extractor 300 may be extended vertically. The side wall 210 of the heater rack 200 and the side wall 310 of the extractor 300 may be spaced apart from the center of the fourth insertion space 340 by the same distance in the radial direction. The side wall 210 of the heater rack 200 and the side wall 310 of the extractor 300 may be located on the same extension line of the periphery of the fourth insertion space 340. The side wall 210 of the heater rack 200 and the side wall 310 of the extractor 300 may each extend in a curved manner in the circumferential direction along the periphery of the fourth insertion space 340.

[0108] In one implementation, the plurality of side walls 210 of the heater rack 200 may be arranged along the circumference of the lower wall 22 of the heater rack 200. A plurality of slits 214 opened at the top and vertically elongated may be formed at certain intervals between the plurality of side walls 210 of the heater rack 200. The plurality of side walls 210 of the heater rack 200 and the plurality of first slits 214 may be alternately arranged in a circumferential direction along the circumference of the fourth insertion space 340.

[0109] For example, the two side walls 210 of the heater rack 200 may be disposed to be disposed opposite to each other with respect to the fourth insertion space 340. Two first slits 214 disposed opposite to each other with respect to the fourth insertion space 340 may be formed between the two side walls 210 of the heater rack 200. However, the number of the side walls 210 and the first slit 214 of the heater rack 200 is not limited thereto, and may be a single (see Fig.17 ), or three or more.

[0110] In one implementation, the plurality of side walls 310 of the extractor 300 may be arranged along the circumference of the lower wall 32 of the extractor 300. A plurality of second slits 314 vertically elongated may be formed at intervals between 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 alternately arranged in a circumferential direction along the circumference of the fourth insertion space 340.

[0111] For example, the two side walls 310 of the extractor 300 may be disposed to be opposite to each other with respect to the fourth insertion space 340. Two second slits 314 disposed opposite to each other with respect to the fourth insertion space 340 may be formed between the two side walls 310 of the extractor 300. However, the number of the side walls 310 and the second slit 314 of the extractor 300 is not limited thereto, and may be a single one (see Fig.17 ), or three or more.

[0112] The extractor 300 may be inserted into the heater rack 200. When the extractor 300 is inserted into the heater rack 200, the sidewall 210 of the heater rack 200 may be disposed in the second slit 314, and the sidewall 310 of the extractor 300 may be disposed in the first slit 214.

[0113] Therefore, the side wall 210 of the heater rack 200 and the side wall 310 of the extractor 300 may define the fourth insertion space 340. In addition, the thickness of the wall between the induction coil 15 and the heater 50 may be reduced, thereby improving the heating efficiency of the heater 50. This will be described later with reference to Fig.15 and Fig.16 Describe in detail.

[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 rack 200 may be disposed below the lower wall 32 of the extractor 300 so as 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 rack 200 may be exposed to the fourth insertion space 340 through the through hole 35 formed in the lower wall 32 of the extractor 300.

[0115] The lower wall 22 of the heater rack 200 may be spaced apart upward from the lower wall 112 of the main body tube 11. An air gap may be formed between the lower wall 22 of the heater rack 200 and the lower wall 112 of the main body tube 11. The lower wall 32 of the extractor 300 may be spaced apart upward from the lower wall 22 of the heater rack 200. An air gap may be formed between the lower wall 32 of the extractor 300 and the lower wall 22 of the heater rack 200. Some of the heat generated from the heater 50 may be transferred from the lower wall 22 of the heater rack 200 to the side wall 210, and then to the lower wall 112 and the side wall 111 of the main body tube 11, thereby allowing the heat to be dissipated. In addition, some of the heat generated from the heater 50 may be dissipated through the air gap formed between the heater rack 200 and the extractor 300 surrounding the heater 50.

[0116] Therefore, the amount of heat conducted from the heater 50 to the components in the aerosol generating device can be reduced, thereby preventing damage or malfunction of the aerosol generating device. In addition, the amount of heat conducted from the heater 50 to the outside of the aerosol generating device can be reduced, thereby reducing the heat transferred to the user.

[0117] Reference Fig.14 The sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may be joined in a radial direction. The sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may support each other in a radially inward direction and a radially outward direction.

[0118] Therefore, the heater rack 200 and the extractor 300 may be securely positioned without rocking or shifting from each other in the radial direction.

[0119] For example, each side wall 210 of the heater rack 200 may include a first recessed portion 211 recessed from an opposite end portion 212 thereof in the circumferential direction. The opposite end portion 212 of each side wall 210 of the heater rack 200 may protrude further in the circumferential direction than the first recessed portion 211. The first recessed portion 211 may be formed on the inner circumferential surface side of the side wall 210 of the heater rack 200. Alternatively, the first recessed portion 211 may be formed on the outer circumferential surface side of the side wall 210 of the heater rack 200. The end portion 212 of the side wall 210 of the heater rack 200 may be referred to as a first protrusion 212.

[0120] Each side wall 310 of the extractor 300 may include a second recessed portion 311 recessed from an opposite end 312 thereof in the circumferential direction. The opposite end 312 of each side wall 310 of the extractor 300 may protrude further in the circumferential direction than the second recessed portion 311. The second recessed portion 311 may be formed on the outer circumferential surface side of the side wall 310 of the extractor 300. Alternatively, the second recessed portion 311 may be formed on the inner circumferential surface side of the side wall 310 of the extractor 300. The end 312 of the side wall 310 of the extractor 300 may be referred to as a second protrusion 312.

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

[0122] Therefore, the first protrusion 212 and the second protrusion 312 may support each other in the radial direction, and the side wall 210 of the heater rack 200 and the side wall 310 of the extractor 300 may be stably positioned with each other.

[0123] This is merely an example, and the form or method in which the sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 are coupled in the radial direction is not limited thereto.

[0124] As another example, a coupling groove (not shown) may be formed in the opposite ends of the side wall 210 of the heater rack 200, and a coupling protrusion (not shown) inserted into the coupling groove may be formed on the opposite ends of the side wall 310 of the extractor 300. The positions of the coupling groove and the coupling protrusion may be interchanged with each other. As another example, the opposite ends of the side wall 210 of the heater rack 200 and the opposite ends of the side wall 310 of the extractor 300 may be formed along diagonal lines corresponding to each other, thereby supporting each other in the radial direction.

[0125] Fig.15 Shows Figures 2 to 11 A cross-sectional view (a) of an embodiment of Figure 12 to Figure 14 A cross-sectional view (b) of an embodiment of the present invention is used to show the comparison of the thickness of the side walls (21, 210) of the heater rack (20, 200) and the side walls (31, 310) of the extractor (30, 300) and the distance between the heater 50 and the induction coil 15, wherein the side walls (21, 210) of the heater rack (20, 200) and the side walls (31, 310) of the extractor (30, 300) are arranged between the induction coil 15 and the heater 50. Fig.16 Shown in Fig.15 Comparison of power consumed to reach a predetermined temperature when the heater 50 generates heat (comparison of current consumption) and comparison of time taken to reach a predetermined temperature when the heater 50 generates heat (comparison of temperature rise speed) between Example (a) and Example (b).

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

[0127] Therefore, the amount of current consumed by the heater 50 to reach a predetermined temperature when the heater 50 generates heat can be less in the case of embodiment (b) than in the case of embodiment (a) (see Fig.16 ). In addition, the speed at which the heater 50 reaches the predetermined temperature when the heater 50 generates heat can be faster in the case of embodiment (b) than in the case of embodiment (a) (see Fig.16 ).

[0128] Reference Fig.17 and Fig.18 , the heater rack 200 may be provided with a side wall 210. The first slit 214 and the side wall 210 of the heater rack 200 may be formed at positions opposite to each other. The extractor 300 may be provided with a side wall 310. The second slit 314 and the side wall 310 of the extractor 300 may be formed at positions opposite to each other.

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

[0130] Therefore, the heater rack 200 and the extractor 300 can be cleaned more easily. To further improve the ease of cleaning, the first slit 214 and the second slit 314 may be opened in a direction corresponding to the body wing 16 .

[0131] The sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may define a fourth insertion space 340. The sidewall 210 of the heater rack 200 may cover one side of the fourth insertion space 340, and the sidewall 310 of the extractor 300 may cover the other side of the fourth insertion space 340. The sidewall 210 of the heater rack 200 and the sidewall 310 of the extractor 300 may be disposed opposite to each other with respect to the fourth insertion space 340.

[0132] Reference Figures 1 to 18 , an aerosol generating device according to one aspect of the present disclosure includes: a body shaped to define a first insertion space opened at the top side of the body; a heater rack including a side wall and capable of being detachably inserted into the first insertion space; a heater coupled to the heater rack; and an extractor including a side wall and having a size to be accommodated in the first insertion space. The side wall of the heater rack and the side wall of the extractor may jointly define a second insertion space opened at the top side, 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 detachably inserted into the heater rack.

[0134] According to another aspect of the present disclosure, the heater rack includes a plurality of side walls, and the extractor includes a plurality of side walls, the plurality of side walls of the heater rack and the plurality of side walls of the extractor jointly define a second insertion space. Each of the plurality of side walls of the heater rack may be alternately arranged in a circumferential direction along an outer circumference of the second insertion space with a corresponding one of the plurality of side walls of the extractor.

[0135] According to another aspect of the present disclosure, adjacent side walls of the heater rack may be positioned to define a plurality of first slits, and adjacent side walls of the extractor may be positioned to define a plurality of second slits, and each of the plurality of side walls of the extractor may be inserted into a corresponding one of the plurality of first slits, and each of the plurality of side walls of the heater rack may be inserted into a corresponding one of the plurality of second slits.

[0136] According to another aspect of the present disclosure, a side wall of the heater rack and a side wall of the extractor may be engaged to support each other in a radial direction.

[0137] According to another aspect of the present disclosure, the side wall of the heater rack may be shaped to define a first recessed portion, the first recessed portion is recessed from the opposite end of the side wall of the heater rack in the circumferential direction, and the opposite end of the side wall of the extractor is disposed in the first recessed portion, and the side wall of the extractor may be shaped to define a second recessed portion, the second recessed portion is recessed from the opposite end of the side wall of the extractor in the circumferential direction, and the opposite end of the side wall of the heater rack is disposed in the second recessed portion. The opposite ends of the side wall of the heater rack and the opposite ends of the side wall of the extractor may support each other in the radial direction.

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

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

[0140] According to another aspect of the present disclosure, the heater may protrude upward from the lower wall of the heater rack toward the opening of the top side of the second insertion space. The lower wall of the extractor may be located above the lower wall of the heater rack and may be shaped to define a through hole through which the heater passes.

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

[0142] According to another aspect of the present disclosure, a lower wall of the heater rack may be spaced upward from a lower wall of the body defining a lower end of the first insertion space to form an air gap therebetween.

[0143] According to another aspect of the present disclosure, the aerosol generating device may further include: an upper shell coupled to the extractor; and a cover coupled to the upper shell and capable of being positioned to open and close an opening on a top side of the second insertion space, wherein the upper shell is detachably coupled to the main body to cover one side of the main body.

[0144] The specific embodiments or other embodiments of the present disclosure described above are not mutually exclusive or different from each other.Any or all elements of the embodiments of the present disclosure described above may be combined with another element or with each other in structure or function.

[0145] For example, the configuration "A" described in one embodiment of the present disclosure and the drawings and the configuration "B" described in another embodiment of the present disclosure and the drawings may be combined with each other. That is, although the combination between the configurations is not directly described, they may be combined except for the case where the combination is described as impossible.

[0146] Although the embodiments have been described with reference to a number of illustrative embodiments, it will be appreciated that numerous other modifications and embodiments may be devised by those skilled in the art that will fall within the scope of the principles of the present disclosure. More specifically, various changes and modifications may be made to the components and / or layout of the main combination arrangement within the scope of the present disclosure, the drawings, and the appended claims. In addition to changes and modifications to the components and / or layout, alternative uses will also be readily apparent to those skilled in the art.

Claims

1. An aerosol generating device, comprising: a main body shaped to define a first insertion space opened at a top side of the main body; a heater rack including a side wall and being removably insertable into the first insertion space; a heater coupled to the heater frame; as well as an extractor including a side wall and capable of being detachably inserted into the first insertion space, The side wall of the heater rack and the side wall of the extractor jointly define a second insertion space opened at the top side, and are alternately arranged along the circumference of the second insertion space.

2. The aerosol generating device according to claim 1, wherein: The extractor is removably insertable into the heater rack.

3. The aerosol generating device according to claim 2, wherein: The heater rack includes a plurality of side walls, and the extractor includes a plurality of side walls, the plurality of side walls of the heater rack and the plurality of side walls of the extractor jointly defining the second insertion space, wherein each of the plurality of side walls of the heater rack and a corresponding one of the plurality of side walls of the extractor are alternately arranged in a circumferential direction along an outer periphery of the second insertion space.

4. The aerosol generating device according to claim 3, wherein: Adjacent ones of the plurality of side walls of the heater frame are positioned to define a plurality of first slits, wherein adjacent ones of the plurality of side walls of the extractor are positioned to define a plurality of second slits, wherein each of the plurality of side walls of the extractor is insertable into a corresponding one of the plurality of first slits, and Wherein, each of the plurality of side walls of the heater rack is insertable into a corresponding one of the plurality of second slits.

5. The aerosol generating device according to claim 1, wherein: The side wall of the heater frame and the side wall of the extractor are engaged to support each other in a radial direction.

6. The aerosol generating device according to claim 5, wherein: The side wall of the heater rack is shaped to define a first recessed portion, the first recessed portion is recessed from opposite ends of the side wall of the heater rack in a circumferential direction, and the opposite ends of the side wall of the extractor are disposed in the first recessed portion, wherein the side wall of the extractor is shaped to define a second recessed portion, the second recessed portion is recessed from opposite ends of the side wall of the extractor in the circumferential direction, and the opposite ends of the side wall of the heater rack are disposed in the second recessed portion, and Wherein, opposite ends of the side wall of the heater frame and opposite ends of the side wall of the extractor support each other in the radial direction.

7. The aerosol generating device according to claim 1, wherein: The side wall of the heater frame covers one side of the lateral portion of the second insertion space, and wherein the side wall of the extractor covers the other side of the lateral portion of the second insertion space opposite to the one side of the lateral portion.

8. The aerosol generating device according to claim 1, wherein: A side wall of the heater rack and a side wall of the extractor are spaced apart from a center of the second insertion space by the same distance.

9. The aerosol generating device according to claim 1, wherein: The heater protrudes upward from the lower wall of the heater frame toward an opening of the top side of the second insertion space, and The lower wall of the extractor is located above the lower wall of the heater frame and is shaped to define a through hole through which the heater passes.

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

11. The aerosol generating device according to claim 10, wherein: The lower wall of the heater rack is spaced apart upward from a lower wall of the body defining a lower end of the first insertion space to form an air gap between the lower wall of the heater rack and the lower wall of the body.

12. The aerosol generating device according to claim 1, further comprising: an upper shell coupled to the extractor; as well as A cover is coupled to the upper case and is positionable to open and close an opening of a top side of the second insertion space, wherein the upper case is detachably coupled to the body to cover one side of the body.

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