Aerosol Generator

Abstract

An aerosol generating device is disclosed, which includes a pipe having an insertion space, a flange covering the bottom of the insertion space, a long heater rod connected to the flange and protruding into the insertion space, and a heater disposed inside the heater rod to heat the insertion space, the heater rod being formed to include a heat insulating space located below the heater.

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 can contain a variety of components. The components contained in the medium can be flavorings of a variety of components. For example, the components contained in the medium can 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 prevent the heat generated by the heater from thermally deforming the surrounding area, thereby improving the structural safety of the surrounding area.

[0005] A further object of the present disclosure is to prevent the heat generated by the heater from heating unnecessary parts of the stick, and to prevent leakage of carbonized material and medium from the stick.

[0006] Yet another object of the present disclosure is to increase power efficiency by heating only the areas where the heater is needed. [Means for solving the problem]

[0007] According to one aspect of the present disclosure to achieve the above-mentioned object, a heat insulating device includes a pipe having an insertion space formed therein, a flange covering the bottom of the insertion space, a long heater rod connected to the flange and protruding into the insertion space, and a heater disposed inside the heater rod to heat the insertion space, wherein the heater rod is formed to include a heat insulating space located below the heater. [Effects of the Invention]

[0008] According to at least one of the embodiments of the present disclosure, it is possible to prevent the heat generated from the heater from thermally deforming the surrounding area, thereby improving the structural safety of the surrounding area.

[0009] According to at least one of the embodiments of the present disclosure, it is possible to prevent the heat generated from the heater from heating unnecessary parts of the stick, and to prevent carbonized material or medium from leaking from the stick.

[0010] According to at least one of the embodiments of the present disclosure, it is possible to improve power efficiency by heating only the areas where a heater is required.

[0011] 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]

[0012] [Figure 1] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 2] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 3] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 4] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 5] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 6] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 7] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 8] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 9] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. For the sake of simplicity of description with reference to the drawings, identical or similar components will be given the same reference numerals, and redundant description thereof will be omitted.

[0014] The suffixes "module" and "section" for components used in the following description are for ease of description only and do not have any special meaning or role.

[0015] In this disclosure, those well known to those skilled in the art will be omitted for the sake of brevity. It should be understood that the accompanying drawings are intended to facilitate understanding of various technical features, and that the embodiments disclosed herein are not limited to the accompanying drawings. Therefore, the present disclosure should be construed as including all modifications, equivalents, and alternatives in addition to those specifically disclosed in the accompanying drawings.

[0016] 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.

[0017] 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.

[0018] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0019] 1 and 2, the aerosol generating device 100 may include at least one of a battery 11, a control unit 12, and a sensor 13. At least one of the battery 11, the control unit 12, and the sensor 13 may be disposed inside the lower body 10 of the aerosol generating device 100.

[0020] The upper body 20 may be coupled to the upper end of the lower body 10 or to the upper side of the lower body 10. The upper body 20 may have an insertion space 24 with an open upper end. The stick 400 may be inserted into the insertion space. The upper body 20 may be referred to as a pipe 20.

[0021] The heater rod 30 may be positioned in the insertion space 24. The heater rod 30 may extend long, protruding from the bottom of the insertion space 24 into the insertion space 24. The heater 33 may be disposed inside the heater rod 30. The heater 33 may be a resistive heater. The heater 33 may heat the insertion space 24.

[0022] When the stick 200 is inserted into the insertion space 24, one end of the stick 200 may be exposed to the outside of the upper body. When the stick 200 is inserted into the insertion space 24, the heater rod 30 may penetrate the end of the stick 200 and be inserted into the inside of the stick 200. The stick 200 may be heated by the heater 33 inside the heater rod 30. A user may hold the exposed end of the stick 200 in their mouth and inhale air.

[0023] The battery 11 can supply power to operate the components of the aerosol generating device 100. The battery 11 can supply power to at least one of the control unit 12, the sensor 13, the induction coil 14, and the heater rod 30. The battery 11 can supply power necessary to operate the display, motor, etc. provided in the aerosol generating device 100.

[0024] The control unit 12 can control the overall operation of the aerosol generation device 100. The control unit 12 can control the operation of at least one of the battery 11, the induction coil 14, and the sensor 13. The control unit 12 can control the operation of a display, a motor, etc. provided in the aerosol generation device 100. The control unit 12 can determine whether the aerosol generation device 100 is in an operable state by checking the status of each component of the aerosol generation device 100.

[0025] The sensor 13 can sense the temperature of the heater 33. The control unit 12 can control the temperature of the heater 33 based on the temperature of the heater 33 sensed by the sensor 13. The control unit 12 can transmit information about the temperature of the heater 33 sensed by the sensor 13 to a user via a user interface.

[0026] 1, the heater 33 may be electrically connected to the battery 11. The heater 33 may receive current from the battery 11 and generate heat directly, without the need for an induction coil 35 (see FIG. 2).

[0027] 2, the aerosol generating device 100 may include an induction coil 14 surrounding the insertion space 24 and the heater rod 30. The induction coil 14 can generate heat in a heater 33. The heater 33 is a susceptor, and can be heated by a magnetic field generated by an AC current flowing through the induction coil 35. The magnetic field passes through the heater 33 and can generate eddy currents within the heater 33. The current can cause the heater 33 to generate heat.

[0028] Referring to Fig. 3, the heater rod 30 may extend vertically. The heater rod 30 may include a body portion 31 and a head portion 32. The body portion 31 may have a long cylindrical shape. The head portion 32 may be formed at the upper end of the body portion 31. The head portion 32 may have a shape that gradually tapers toward the upper side. The head portion 32 may have a pointed upper end. This allows the heater rod 30 to be smoothly inserted into the stick 400 (see Figs. 1 and 2).

[0029] The flange 50 may form the bottom of the insertion space 24 (see FIGS. 1 and 2). The lower end of the heater rod 30 may be fixed to the flange 50. The heater rod 30 may protrude upward from the flange 50 and extend elongatedly. For example, the flange 50 may have a plate shape. The flange 50 may be integrally formed with the heater rod 30 by insert injection molding.

[0030] Referring to FIG. 4, the heater rod 30 may have a hollow shape. The heater 33 may be disposed inside the heater rod 30. The heater 33 may be fixed inside the heater rod 30 using an adhesive. Alternatively, the heater rod 30 may be insert-molded into the heater 33 and then fixed to each other. The body 31 and head 32 of the heater rod 30 may surround the interior space of the heater rod 30. The body 31 may surround the periphery of the heater 33. The head 32 may cover the upper end of the heater 33. The heater rod 30 may be made of a ceramic material. Heat generated from the heater 33 may be transferred to the outside of the heater rod 30 to heat the stick 400 (see FIGS. 1 and 2).

[0031] An insulating space 34 may be formed inside the heater rod 30. The insulating space 34 may be formed with an air layer. The insulating space 34 may have lower thermal conductivity than the heater rod 30. The insulating space 34 may be surrounded by the body part 31 of the heater rod 30. The insulating space 34 may be located below the heater 33. The upper end of the insulating space 34 may contact the lower end of the heater 33. The lower end of the insulating space 34 may be open or may be covered with a cover 53 or a flange 50. A heat absorber such as a phase change material may be inserted inside the insulating space 34.

[0032] The thermal conductivity of some of the heat generated by the heater 33 may decrease as it passes through the insulating space 34. Therefore, the insulating space 34 can reduce the amount of heat generated by the heater 33 that is transferred to the periphery of the insulating space 34. In addition, the thermal deformation of the joint between the lower part of the heater rod 30 and the flange 50 or the pipe 20 (see FIGS. 1 and 2) can be reduced, improving structural safety.

[0033] 5, the stick 400 may include a medium portion 410. The stick 400 may include a cooling portion 420. The stick 400 may include a filter portion 430. The cooling portion 420 may be disposed between the medium portion 410 and the filter portion 430. The stick 400 may include a wrapper 440. The wrapper 440 may encase the medium portion 410. The wrapper 440 may encase the cooling portion 420. The wrapper 440 may encase the filter portion 430. The stick 400 may have a cylindrical shape.

[0034] The medium portion 410 may include a medium 411. The medium portion 410 may include a first medium cover 413. The medium portion 410 may include a second medium cover 415. The medium 411 may be disposed between the first medium cover 413 and the second medium cover 415. The first medium cover 413 may be disposed at one end of the stick 400. The length of the medium portion 410 may be 24 mm.

[0035] The medium 411 may contain various substances. The substances contained in the medium may be flavoring substances. The medium 411 may be composed of a plurality of granules. Each of the granules may have a size of 0.4 mm to 1.12 mm. The medium 411 may be filled with the granules approximately 70% of the interior thereof. The length L2 of the medium 411 may be 10 mm. The first medium cover 413 may be composed of an acetate material. The second medium cover 415 may be composed of an acetate material. The first medium cover 413 may be composed of a paper material. The second medium cover 415 may be composed of a paper material. At least one of the first medium cover 413 and the second medium cover 415 may be composed of a paper material and may have a wrinkled shape, forming a plurality of gaps between them for air to flow. The gaps may be smaller than the size of each granule of the medium 411. The length L1 of the first medium cover 413 may be shorter than the length L2 of the medium 411. The length L3 of the second medium cover 413 may be shorter than the length L2 of the medium 411. The length L1 of the first medium cover 413 may be 7 mm. The length L2 of the second medium cover 413 may be 7 mm.

[0036] Therefore, each granule of the medium 411 cannot be separated from the medium portion 410 and the stick 400 .

[0037] The cooling portion 420 may have a cylindrical shape. The cooling portion 420 may have a hollow shape. The cooling portion 420 may be disposed between the medium portion 410 and the filter portion 430. The cooling portion 420 may be disposed between the second medium portion 415 and the filter portion 430. The cooling portion 420 may be formed in a tubular shape surrounding the cooling passage 424 therein. The cooling portion 420 may be thicker than the wrapper 440. The cooling portion 420 may be made of a paper material that is thicker than the wrapper 440. The length L4 of the cooling portion 420 may be the same as or approximately the same as the length L2 of the medium 411. The length L4 of the cooling portion 420 and the cooling passage 424 may be 10 mm. When the stick 400 is inserted into the aerosol generation device (see FIG. 3), at least a portion of the cooling portion 420 may be exposed to the outside of the aerosol generation device.

[0038] Therefore, the cooling unit 420 supports the medium unit 410 and the filter unit 430, thereby ensuring the rigidity of the stick 400. In addition, the cooling unit 420 supports the wrapper 440 between the medium unit 410 and the filter unit 430, thereby ensuring a location where the wrapper 440 is adhered. In addition, the heated air and aerosol can be cooled while passing through the cooling passage 424 inside the cooling unit 420.

[0039] The filter part 430 may be made of an acetate filter. The filter part 430 may be disposed at the other end of the stick 400. When the stick 400 is inserted into the aerosol generating device (see FIG. 3), the filter part 430 may be exposed to the outside of the aerosol generating device. A user can inhale air by holding the filter part 430 in their mouth. The length L5 of the filter part 430 may be 14 mm.

[0040] The wrapper 440 may wrap or surround the medium portion 410, the cooling portion 420, and the filter portion 430. The wrapper 440 may form the outer shape of the stick 400. The wrapper 440 may be made of a paper material. The adhesive portion 441 may be formed on one side edge of the wrapper 440. The wrapper 440 wraps the medium portion 410, the cooling portion 420, and the filter portion 430, and the adhesive portion 441 formed on one side edge and the other side edge may be adhered to each other. The wrapper 440 wrapping the medium portion 410, the cooling portion 420, and the filter portion 430 does not have to cover one end and the other end of the stick 400.

[0041] Therefore, the wrapper 440 can fix the medium portion 410 , the cooling portion 420 and the filter portion 430 and prevent them from coming off the stick 400 .

[0042] The first thin film 443 may be disposed at a position corresponding to the first medium cover 413. The first thin film 443 may be disposed between the wrapper 440 and the first medium cover 413, or may be disposed outside the wrapper 440. The first thin film 443 may surround the first medium cover 413. The first thin film 443 may be made of a metal material. The first thin film 443 may be made of an aluminum material. The first thin film 443 may be adhered to or coated on the wrapper 440.

[0043] The second thin film 445 may be disposed at a position corresponding to the second medium cover 415. The second thin film 445 may be disposed between the wrapper 440 and the second medium cover 415, or may be disposed outside the wrapper 440. The second thin film 445 may be made of a metal material. The second thin film 445 may be made of an aluminum material. The second thin film 445 may be adhered to or coated on the wrapper 440.

[0044] Therefore, if a capacitance sensor that recognizes the stick is provided inside the aerosol generating device, the capacitance sensor can detect whether the stick 400 is inserted inside the aerosol generating device.

[0045] 6 and 7, the upper body 20 or the pipe 20 may include an inner wall 21, an outer wall 22, and an upper wall 23. The inner wall 21 may extend in the vertical direction. The inner wall 21 may have a cylindrical shape. The inner wall 21 may surround an insertion space 24 that is open at the top. The outer wall 22 may be spaced apart from the inner wall 21 in the thickness direction to form a space in which the induction coil 14 is disposed. The upper wall 23 may connect an upper end of the inner wall 21 to an upper end of the outer wall 22. The upper wall 23 may cover the space between the inner wall 21 and the outer wall 22.

[0046] The flange 50 may form the bottom of the pipe 20. The flange 50 may be fixed to the lower end of the pipe 20. The flange 50 may cover the lower part of the insertion space 24. The heater rod 30 may protrude from the flange 50 into the insertion space 24.

[0047] The heat insulating space 34 inside the heater rod 30 may extend upward by a predetermined length h1 from the upper end of the flange 50. The heater 33 may be spaced upward by a predetermined length h1 from the upper end of the flange 50.

[0048] The induction coil 14 may be disposed between the inner wall 21 and the outer wall 22. The induction coil 14 may be wound around the inner wall 21 in the vertical direction. The induction coil 14 may surround the insertion space 24 and the heater rod 30. The heater 33 inside the heater rod 30 may be heated by the induction coil 14. Because the induction coil 14 heats the heater 33, a separate wire connecting the heater 33 to a power source is not required.

[0049] The stick 400 can be inserted into the insertion space 24 through the opening of the insertion space 24. When the stick 400 is inserted into the insertion space 24, the heater rod 30 can be inserted into the inside of the stick 400. The heater rod 30 can be inserted into the medium 411 through the first medium cover 413 of the stick 400. The body portion 31 of the heater rod 30 can overlap the first medium cover 413 and the medium 411. The head portion 32 of the heater rod 30 can overlap the medium 411.

[0050] The first medium cover 413 may be located at the lower end of the stick 400. When the stick 400 is inserted into the insertion space 24, the heater rod 30 can penetrate the first medium cover 413. When the stick 400 is inserted into the insertion space 24, the first medium cover 413 may be located at the lower end of the insertion space 24, close to the upper end of the flange 50. The first medium cover 413 may be located at the height where the insulation space 34 is located. The insulation space 34 and the first medium cover 413 may overlap. The length L1 of the first medium cover 413 may be smaller than or equal to the length h1 of the insulation space 34.

[0051] The medium 411 may be located above the first medium cover 413 of the stick 400. When the stick 400 is inserted into the insertion space 24, the heater rod 30 may penetrate the medium 411 and be inserted into the medium 411. The medium 411 may be located at the same height as the heater 33. The heater 33 and the medium 411 may overlap. The heater 33 may heat the medium 411. The length h2 of the heater 33 may be smaller than or equal to the length L2 of the medium 411. The heater 33 may be located inside the medium 411. The heater 33 may be located between the upper and lower ends of the medium 411. The upper part of the insulating space 34 may overlap the lower part of the medium 411.

[0052] The second medium cover 415 may be located above the medium 411 of the stick 400. The medium 411 may be located between the first medium cover 413 and the second medium cover 415. When the stick 400 is inserted into the insertion space 24, the heater rod 30 may be located below the second medium cover 415 without penetrating through the second medium cover 415.

[0053] Therefore, the heater 33 heats the medium 411 intensively, minimizing heat transfer from the heater 33 to the first medium cover 413 and the second medium cover 415. In addition, the first medium cover 413 is prevented from being deformed or damaged by heat, and the medium 411 is prevented from leaking from the stick 400. In addition, the connection portion between the flange 50 and the heater rod 30 is prevented from being deformed by heat, improving structural safety. In addition, the heating range is limited to the required area, improving power efficiency.

[0054] The lower end of the heater 33 may be higher than the lower end of the medium 411. The upper end of the insulating space 34 may be located at the lower end of the medium 411. Therefore, even without the first medium cover 413, carbonized matter generated at the lower end of the medium 411 is reduced, and carbonized matter of the medium 411 can be prevented from remaining in the device.

[0055] 8 and 9, the upper body 200 may have an accommodating space 240 formed therein. The accommodating space 240 may have a cylindrical shape that extends vertically. An inner wall 210 may surround the accommodating space 240. The bottom of the accommodating space 240 may be covered and the top may be open. The outer wall 220 may be spaced apart from the inner wall 210 in the thickness direction to form a space in which the induction coil 140 is disposed. The induction coil 140 may be wound around the inner wall 210. The induction coil 140 may surround the accommodating space 240.

[0056] The aerosol generating device 100 may include an extractor 60. An insertion space 64 may be formed inside the extractor 60. A sidewall 61 of the extractor 60 may have a cylindrical shape that extends vertically. The sidewall 61 may surround the insertion space 64. A bottom 62 of the extractor 60 may cover the bottom of the insertion space 64. The top of the insertion space 64 may be open. The extractor 60 may be detachably inserted into the storage space 240. The extractor 60 may be referred to as a pipe 60.

[0057] The heater rod 30 may be fixed to the bottom 62 of the extractor 60. The heater rod 30 may extend long and protrude from the bottom 62 of the extractor 60 into the insertion space 64. The lower end of the insulation space 34 may be open or may be covered by a cover 63 or the bottom 62 of the extractor 60. A heat absorber such as a phase change material may be inserted inside the insulation space 34. The insulation space 34 may be adjacent to the bottom 62 of the extractor 60. The insulation space 34 may be located below the heater 33. The insulation space 34 may be formed at a height between the heater 33 and the bottom 62. The bottom 62 may be referred to as a flange 62.

[0058] The upper case 70 may be detachably coupled to the upper body 200. The upper end of the extractor 60 may be coupled to the upper case 70. The upper case 70 may have an opening 74. The opening 74 may be formed at a position corresponding to the opening of the insertion space 64. The opening 74 may be located above the opening of the insertion space 64. The opening 74 may communicate with the opening of the insertion space 64. The upper case 70 may include a cap 75. The cap 75 may be movably coupled to the upper end of the upper case 70. The cap 75 may move to open and close the opening 74 and the opening of the insertion space 64.

[0059] When the upper case 70 is coupled to the upper body 200, the extractor 60 can be inserted into the receiving space 240. When the extractor 60 is inserted into the receiving space 240, the heater rod 30 can be surrounded by the induction coil 140. The heater 33 can generate heat by the induction coil 140.

[0060] The stick 400 can be inserted into the insertion space 64 through the opening 74. The heater rod 30 can be inserted into the stick 400. The first medium cover 413 of the stick 400 can overlap the insulating space 34. The heater 33 can overlap the medium 411. This has been described above with reference to FIGS. 6 and 7, so further description is omitted.

[0061] 1 to 9, an aerosol generating device according to one aspect of the present disclosure includes a pipe having an insertion space formed therein, a flange covering the bottom of the insertion space, a long heater rod connected to the flange and protruding into the insertion space, and a heater disposed inside the heater rod to heat the insertion space, and the heater rod may be formed to include a heat insulating space located below the heater.

[0062] According to another aspect of the present disclosure, the heat insulating space may include a portion formed between a lower end of the heater and a surface corresponding to an upper surface of the flange.

[0063] According to another aspect of the present disclosure, the device may further include an induction coil disposed around a portion of the insertion space to cause the heater to generate heat.

[0064] According to another aspect of the present disclosure, the heater may further include a stick that is insertable into the insertion space and contains a medium therein, and when the stick is inserted into the insertion space, the heater may be positioned at a height corresponding to at least a portion of the medium.

[0065] According to another aspect of the present disclosure, the stick may be configured to be insertable into the insertion space, the stick may contain a medium therein, and when the stick is inserted into the insertion space, the heater may be positioned at a height higher than a lower end of the medium.

[0066] Also, according to another aspect of the present disclosure, the heater may have a length h2 that is shorter than a length L2 of the medium.

[0067] According to another aspect of the present disclosure, the stick may include a medium cover positioned to cover a lower portion of the medium, and when the stick is inserted into the insertion space, the insulating space may overlap with the medium cover.

[0068] According to another aspect of the present disclosure, the aerosol generating device may further include a heat absorber positioned within the thermally insulated space.

[0069] According to another aspect of the present disclosure, the aerosol generating device may further include an upper body having a storage space formed therein with an open upper end sized to detachably store the pipe, and an induction coil surrounding a portion of the storage space and causing the heater to generate heat.

[0070] According to another aspect of the present disclosure, the aerosol generating device may further include an upper case connected to the pipe, having an opening communicating with the insertion space, and detachably connected to the upper body; and a cap connected to the upper case and positioned to open and close the opening and the insertion space.

[0071] According to another aspect of the present disclosure, the insertion space may have a thermal conductivity lower than that of the heater rod.

[0072] Furthermore, an aerosol generating device according to another aspect of the present disclosure includes a pipe having an insertion space formed therein and open at the top to allow a stick to be inserted into the insertion space, a flange connected to the bottom of the pipe and covering the inner surface of the pipe as well as a portion of the bottom of the insertion space, a long heater rod connected to the flange and protruding into the insertion space, and a heater disposed inside the heater rod to heat the insertion space, wherein the heater rod may be formed to include a heat insulating space located below the heater.

[0073] According to another aspect of the present disclosure, an induction coil may cause the heater to generate heat, the pipe may include an inner wall and an outer wall, and the induction coil may be located between the inner wall and the outer wall of the pipe and disposed around a portion of the insertion space.

[0074] 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.

[0075] 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.

[0076] 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 pipe having an insertion space formed therein; a flange covering the bottom of the insertion space; a long heater rod connected to the flange, protruding into the insertion space, and having a hollow shape; a heater disposed inside the hollow shape of the heater rod to heat the insertion space, The heater rod is positioned below the heater inside the hollow shape and is formed to include an insulating space formed by an air layer.

2. The aerosol generating device according to claim 1 , wherein the heat insulating space includes a portion formed between a lower end of the heater and a surface corresponding to an upper surface of the flange.

3. The aerosol generating device according to claim 1 , further comprising an induction coil disposed around a portion of the insertion space and causing the heater to generate heat.

4. The stick may further include a stick that is insertable into the insertion space and contains a medium therein. The aerosol generating device according to claim 1 , wherein when the stick is inserted into the insertion space, the heater is positioned at a height corresponding to at least a portion of the medium.

5. The stick may further include a stick that is insertable into the insertion space and contains a medium therein. The aerosol generating device according to claim 1 , wherein when the stick is inserted into the insertion space, the heater is positioned at a height higher than a lower end of the medium.

6. The aerosol generating device according to claim 5 , wherein the heater has a length shorter than a length of the medium.

7. The stick includes a medium cover positioned to cover a lower portion of the medium; The aerosol generating device according to claim 4 , wherein when the stick is inserted into the insertion space, the insulating space overlaps with the medium cover.

8. The aerosol generating device according to claim 1 , further comprising a heat absorber located within the thermally insulated space.

9. an upper body having an accommodation space formed therein and having an open upper end sized to detachably accommodate the pipe; The aerosol generating device according to claim 1 , further comprising an induction coil surrounding a portion of the accommodation space and causing the heater to generate heat.

10. an upper case connected to the pipe, having an opening communicating with the insertion space, and detachably connected to the upper body; The aerosol generating device according to claim 9 , further comprising: a cap coupled to the upper case and positionable to open and close the opening and the insertion space.

11. The aerosol generating device according to claim 1 , wherein the insertion space has a thermal conductivity lower than that of the heater rod.

12. a pipe having an insertion space formed therein and an open top for inserting a stick into the insertion space; a flange coupled to a lower portion of the pipe and covering an inner surface of the pipe together with a part of the bottom of the insertion space; a long heater rod connected to the flange, protruding into the insertion space, and having a hollow shape; a heater disposed inside the hollow shape of the heater rod to heat the insertion space, The heater rod is positioned below the heater inside the hollow shape and is formed to include an insulating space formed by an air layer.

13. further comprising an induction coil for causing the heater to generate heat; the pipe includes an inner wall and an outer wall; The aerosol generating device according to claim 12 , wherein the induction coil is located between the inner wall and the outer wall of the pipe and is arranged around a portion of the insertion space.

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