Aerosol generating device and method for manufacturing the aerosol generating device

Abstract

An aerosol generating device and a manufacturing method thereof are provided. The aerosol generating device includes a body including an insertion space, a heater pin protruding upward from a lower end of the insertion space, a heater disposed in a hollow of the heater pin, a first bonding material injected into the hollow to fix the heater, and a second bonding material injected into the hollow to cover the first bonding material and fill an opening of the hollow.

Description

[Technical Field]

[0001] The present disclosure relates to an aerosol generating device and a method for producing the same. [Background technology]

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

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

[0004] Yet another object of the present disclosure is to prevent moisture from entering the interior of the heater pin.

[0005] It is yet another object of the present disclosure to prevent malfunction of the heater.

[0006] Yet another object of the present disclosure is to improve manufacturing efficiency of heater assemblies.

[0007] Yet another object of the present disclosure is to reduce overheating of aerosol generating devices.

[0008] Yet another object of the present disclosure is to prevent the heater from rotating circumferentially or becoming detached.

[0009] Yet another object of the present disclosure is to improve heater durability and heater replacement cycles. [Means for solving the problem]

[0010] According to one aspect of the subject matter described in the present application, an aerosol generating device may include a body including an insertion space, a heater pin protruding upward from a lower end of the insertion space, a heater disposed within a hollow of the heater pin, a first bonding material injected into the hollow to fix the heater, and a second bonding material injected into the hollow to cover the first bonding material and fill an opening of the hollow. [Effects of the Invention]

[0011] According to at least one embodiment of the present disclosure, an aerosol generating device with improved heater and power efficiency can be provided.

[0012] According to at least one of the embodiments of the present disclosure, it is possible to prevent moisture from entering the inside of the heater pin.

[0013] According to at least one of the embodiments of the present disclosure, malfunction of the heater can be prevented.

[0014] At least one of the embodiments of the present disclosure can improve manufacturing efficiency of heater assemblies.

[0015] According to at least one of the embodiments of the present disclosure, overheating of the aerosol generating device can be reduced.

[0016] According to at least one of the embodiments of the present disclosure, the heater can be prevented from rotating in the circumferential direction or from becoming detached.

[0017] According to at least one of the embodiments of the present disclosure, the durability of the heater and the replacement cycle of the heater can be improved.

[0018] 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]

[0019] [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. [Figure 10] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 11] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 12] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. [Figure 13] FIG. 1 illustrates an example of an aerosol generating device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The same or similar components will be given the same reference numerals even if they are shown in different drawings, and redundant description thereof will be omitted.

[0021] The suffixes "module" and "section" for components used in the following description are used solely for the convenience of explanation of the specification. "Module" and "section" do not have different meanings or roles from each other.

[0022] Furthermore, in the following description of the embodiments disclosed herein, detailed descriptions of related known technologies may be omitted if they may obscure the gist of the embodiments disclosed herein. The accompanying drawings are provided to facilitate understanding of the embodiments disclosed herein, and do not limit the technical ideas disclosed herein. Therefore, the accompanying drawings should be interpreted as including all modifications, equivalents, and alternatives within the spirit and scope of the present disclosure.

[0023] 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.

[0024] 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.

[0025] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0026] 1 to 3, the aerosol generating device may include at least one of a battery 101, a control unit 102, and a sensor 103. At least one of the battery 101, the control unit 102, and the sensor 103 may be disposed inside a body 10 of the aerosol generating device.

[0027] The pipe 20 may be coupled to the upper side of the body 10. An insertion space 24 may be formed inside the pipe 20. The insertion space 24 may be open to the upper side. The insertion space 24 may be formed in a cylindrical shape. The stick 400 may be removably inserted into the insertion space 24.

[0028] The heater 33 may be disposed inside a heater pin 30 that protrudes upward from the cover 25 that forms the bottom of the pipe 20 toward the insertion space 24. The heater 33 may be a resistive heater. The heater 33 can heat the stick 400 inserted into the insertion space 24.

[0029] When the stick 400 is inserted into the insertion space 24, one end of the stick 400 can be exposed to the outside of the insertion space 24 and the body 10. When the stick 400 is inserted into the insertion space 24, the heater 33 can be inserted into the inside of the stick 400 by passing through the end of the stick 400. The stick 400 can be heated by the heater 33. A user can inhale air by holding the exposed end of the stick 400 in their mouth.

[0030] The battery 101 can supply power to operate the components of the aerosol generating device. The battery 101 can supply power to at least one of the control unit 102, the sensor 103, the induction coil 15, and the heater rod 30. The battery 101 can supply power necessary to operate the display, motor, etc. installed in the aerosol generating device.

[0031] The control unit 102 can control the overall operation of the aerosol generation device. The control unit 102 can control the operation of at least one of the battery 101, the induction coil 15, and the sensor 103. The control unit 102 can control the operation of a display, a motor, etc. installed in the aerosol generation device. The control unit 102 can check the status of each component of the aerosol generation device and determine whether the aerosol generation device is in an operable state.

[0032] The sensor 103 may sense the temperature of the heater 50. The control unit 102 may control the temperature of the heater 50 based on the temperature of the heater 50 sensed by the sensor 103. The control unit 102 may transmit information about the temperature of the heater 50 sensed by the sensor 103 to a user via a user interface.

[0033] 1, the heater 33 can be electrically connected to the battery 11. The heater 33 can receive current from the battery 11 and generate heat directly, without the need for an induction coil 14 (see FIG. 2).

[0034] 2, the aerosol generating device 100 may include an induction coil 14. The induction coil 14 may surround the insertion space 24 and the heater 33. The induction coil 14 may cause the heater 33 to generate heat. The heater 50 is a susceptor, and may be heated by a magnetic field generated by an AC current flowing through the induction coil 14. The magnetic field penetrates the heater 50 and may generate an eddy current within the heater 50. The current may generate heat in the heater 50.

[0035] 3 to 5, the pipe 20 may include a cover 25. The cover 25 forms the bottom of the pipe 20 and may cover the lower part of the insertion space 24. The cover 25 may include a first cover portion 251 and a second cover portion 252.

[0036] The first cover part 251 may be connected to the lower end of the pipe 20. The first cover part 251 may cover the bottom of the insertion space 24. The second cover part 252 may be connected to the first cover part 251. The second cover part 252 may be formed below the first cover part 251. The inner surface of the second cover part 252 may be recessed outwardly relative to the inner surface of the first cover part 251. A cover hole 254 may be formed on the inner side of the lower part 2522 of the second cover part 252. The cover hole 254 may be in communication with the hollow 34 of the heater pin 30.

[0037] The heater pin 30 may be elongated in the vertical direction. The heater pin 30 may have a cylindrical shape. The upper end of the heater pin 30 may be formed to be pointed. The heater pin 30 may have a space therein into which the heater 33 can be inserted. The heater pin 30 may be made of a material that has excellent moisture resistance, heat resistance, and thermal conductivity. For example, the heater pin 30 may be made of a ceramic material.

[0038] The heater pin 30 may include a pin body 31. The pin body 31 may extend vertically. The pin body 31 may have a cylindrical shape. The pin body 31 may have a hollow 34 formed therein. The lower portion of the heater pin 30 may be open and communicate with the hollow 34. The hollow 34 may extend vertically. The hollow 34 may have a cylindrical shape.

[0039] The heater pin 30 may include a pin tip 32. The pin tip 32 may form the upper end of the heater pin 30. The pin tip 32 may be formed integrally with the pin body 31 on the upper side of the pin body 31. The pin tip 32 may have a shape that gradually becomes thinner as it goes upward. The pin tip 32 may include a pointed upper end. Therefore, the heater pin 30 can penetrate the stick S and fix the stick S.

[0040] The flange 35 may protrude outward from the heater pin 30. The flange 35 may protrude laterally from the lower end of the heater pin 30. The flange 35 may protrude radially outward from the heater pin 30. The flange 35 may be formed integrally with the heater pin 30.

[0041] The flange 35 may be formed with multiple steps. For example, the flange 35 may be formed with two steps. For example, the flange 35 may include a first flange 351 and a second flange 352. The first flange 351 may be located at the upper part of the flange 35. The second flange 352 may be located at the lower part of the flange 35. Below, the flange 35 including the first flange 351 and the second flange 352 will be described, but is not limited to this. The flange 35 may include a greater number of flanges. For example, the flange 35 may be formed with three or more steps.

[0042] The first flange 351 may be disposed above the second flange 352. The first flange 351 may be formed integrally with the second flange 352. The first flange 351 may be disposed at the bottom of the pin body 31. The first flange 351 may protrude from the outer circumferential surface of the pin body 31 toward the outer side or radially outward. The first flange 351 may extend in the circumferential direction.

[0043] The second flange 352 may be disposed below the first flange 351. The second flange 352 may be disposed at the lower end of the heater pin 30. The second flange 352 may protrude from the outer circumferential surface of the pin body 31 toward the outer side or in the radially outward direction. The second flange 352 may protrude further toward the outer side or in the radially outward direction than the first flange 351.

[0044] Therefore, there may be a step between the first flange 351 and the second flange 352.

[0045] At least one of the first flange 351 and the second flange 352 may have a non-circular cross-section. For example, the first flange 351 may extend circumferentially and have a circular cross-sectional shape, and the second flange 352 may have a non-circular cross-section.

[0046] The first cover part 251 may surround and closely fit a side surface of the first flange 352. The first cover part 251 may cover or closely fit an upper surface of the second flange 352. The upper surface of the first flange 351 may face the bottom of the insertion space 24 together with the first cover part 251.

[0047] The second cover part 252 may surround and closely contact the side and outer lower part of the second flange 352. The second flange 352 may be disposed between the first cover part 251 and the second cover part 252 and supported in the up and down direction.

[0048] Therefore, the cover 25 and the flange 36 are joined together in a vertically interlocking manner and supported in the vertical direction, so that the heater pin 30 can be prevented from coming off the pipe 20, and structural safety can be ensured.

[0049] In addition, the cover 25 and the flange 36 can be joined so as to mesh with each other in the circumferential direction, which makes it possible to prevent the heater pin 30 joined to the pipe 20 from rotating (see FIG. 3).

[0050] 3 to 6, the heater 33 may have a coil shape. The heater 33 may be wound around a long support bar 332. The support bar 332 supports the heater 33 and can maintain its shape.

[0051] Lead wires 331 can extend long from both ends of the heater 33. The heater 33 can receive power from a power source via the lead wires 331. The heater 33 is a resistive heater and can generate heat when power is received.

[0052] The heater 33 and the support bar 332 may be fixed inside the heater pin 30 by a first bonding material 361. A second bonding material 362 may close the opening at the bottom of the heater pin 30. The lead wire 331 may be exposed downward through the second bonding material 362 and the cover hole 254 and connected to a power source.

[0053] 7, the first injector 51 may store a liquid first bonding material 361 therein. The first nozzle 511 of the first injector 51 may have an elongated shape. The first injector 51 may inject the liquid first bonding material 361 through the first nozzle 511.

[0054] The first bonding material 361 may be non-conductive and made of a material with excellent heat resistance and chemical resistance. For example, the first bonding material 361 may be a ceramic bonding agent. The ceramic bonding agent may include, but is not limited to, polyurethane, amine, styrene copolymer, and resin. The liquid first bonding material 361 may harden at room temperature over a predetermined period of time, but this may vary depending on the type or ratio of the raw materials constituting the first bonding material 361.

[0055] The heater pin 30 may have an opening on the bottom side. With the heater pin 30 inverted so that the opening on the bottom side faces upward, a first bonding material 361 in a liquid state may be injected into the hollow 34 inside the heater pin 30 via the first injector 51. With the first nozzle 511 inserted into the hollow 34, the first bonding material 361 may be sprayed into the hollow 34. The first bonding material 361 may be injected up to a height close to the opening of the heater pin 30. For example, the first bonding material 361 may be injected up to the lower side of the flange 35 based on the inverted heater pin 30.

[0056] 8 and 9, the heater 33 and support bar 332 may be inserted into the hollow 34 through an opening formed on the underside of the heater pin 30 with the heater pin 30 in an upside-down state. The heater 33 and support bar 332 may be inserted into a liquid first bonding material 361 poured into the hollow 34. The support bar 332 and heater 33 may be completely immersed in the first bonding material 361. Here, the heater 33 is wound around and supported by the support bar 332, so it can maintain its shape when inserted into the first bonding material 361. Here, the lead wire 331 may extend from the heater 33 to the outside of the hollow 34 through the opening in the heater pin 30 and be exposed on the underside of the heater pin 30.

[0057] The support bar 332 may be disposed parallel to the pin body 31 within the hollow 34. The heater 33 may be disposed between the pin body 31 and the support bar 332 within the hollow 34. The first bonding material 361 may fill gaps among the pin body 31, the support bar 332, and the heater 33 within the hollow 34. The first bonding material 361 may dry and harden for a predetermined period of time after the heater 33 and the support bar 332 are inserted into the hollow 34, changing into a solid state. The first bonding material 361 may be adhered to the inner surface of the pin body 31 and fixed thereto. The first bonding material 361 may be adhered to the heater 33 and the support bar 332 and fixed thereto. The first bonding material 361 may fix the heater 33 and the support bar 332 to the heater pin 30.

[0058] 10 and 11 , the second injector 52 may store a liquid second bonding material 362 therein. The second nozzle 521 of the second injector 52 may have an elongated shape. The second injector 51 may inject the liquid second bonding material 361 through the second nozzle 521.

[0059] The second bonding material 362 may be non-conductive and made of a material with excellent heat and chemical resistance. For example, the second bonding material 362 may be a ceramic bonding agent. The ceramic bonding agent may include, but is not limited to, polyurethane, amine, styrene copolymer, and resin. The liquid second bonding material 362 may harden at room temperature after a predetermined time, but this may vary depending on the type and ratio of the raw materials constituting the second bonding material 362.

[0060] Once the first bonding material 361 has dried and hardened into a solid state, and the heater pin 30 is turned upside down so that the opening on the lower side of the heater pin 30 faces upward, a second bonding material 362 in a liquid state can be injected into the internal hollow 34 of the heater pin 30 through the second injector 52. The second nozzle 521 can be inserted into the hollow 34 adjacent to the opening and can spray the second bonding material 362 into the hollow 34, i.e., onto the first bonding material 361. The second bonding material 362 can be disposed below the first bonding material 361 (see FIG. 3 ).

[0061] The second bonding material 362 may be injected up to the bottom end of the heater pin 30. The second bonding material 362 may fill the opening of the heater pin 30. A portion of the lead wire 331 may be disposed in the second bonding material 362. The lead wire 331 may pass through the second bonding material 362 and be exposed to the outside of the heater pin 30.

[0062] The second bonding material 362 can dry and harden to a solid state. The second bonding material 362 can fill the openings in the heater pins 30 and seal the periphery of the openings in the heater pins 30. The second bonding material 362 can adhere to the inner surface of the heater pins 30 around the periphery of the openings in the heater pins 30.

[0063] The first bonding material 361 may be selected taking into consideration manufacturing efficiency of the heating assembly, manufacturing tolerance, thermal transparency, etc., while the material of the second bonding material 362 may be selected taking into consideration manufacturing efficiency of the heating assembly, moisture resistance, etc. This is merely an example, and considerations are not limited thereto. The properties of the first bonding material 361 and the second bonding material 362 will be described below.

[0064] The first bonding material 361 may be formed of a material with low viscosity. The viscosity of the first bonding material 361 in a liquid state may be lower than that of the second bonding material 362. This allows the first bonding material 361 to be easily injected into the hollow 34, the heater 33 and the support bar 332 to be easily inserted into the first bonding material 361, and the heater 33 and the support bar 332 to be positioned more precisely relative to the heater pin 30.

[0065] The first bonding material 361 may have high thermal conductivity, and the second bonding material 362 may have low thermal conductivity. Therefore, the heat generated from the heater 33 can pass through the first bonding material 361 and the heater pin 30 to efficiently heat the stick 400 inserted into the insertion space 24. In addition, the heat generated from the heater 33 is insulated by the second bonding material 362, which can reduce the influence of the heat on other components placed below the heater pin 30.

[0066] The second bonding material 362 may have a higher viscosity and adhesive strength in a liquid state than the first bonding material 361. Therefore, the second bonding material 362 can dry and solidify in a shorter time than the first bonding material 361. Furthermore, the bonding strength of the second bonding material 362 to the inner surface of the heater pin 30 is stronger than that of the first bonding material 361. Therefore, the second bonding material 362 can more effectively prevent liquids and moisture in the air from penetrating into the interior of the heater pin 30.

[0067] The second bonding material 362 may have at least one of a moisture resistance and a waterproof rating greater than that of the first bonding material 361. Moisture resistance can be measured by changes in physical properties after a predetermined period of time under specific temperature and humidity conditions. Waterproofness can also be referred to as a waterproof rating. Waterproofness is the depth that can withstand water pressure in water and can be expressed in millimeters. Therefore, even if the aerosol generating device is exposed to moisture in the air for a long period of time, the second bonding material 362 absorbs less moisture, thereby preventing or reducing the amount of moisture that penetrates into the heater pin 30. The second bonding material 362 may have a greater water repellency than the first bonding material 361. In addition, this can prevent malfunction or failure of the heater 33 due to moisture and allow for more accurate sensing and control of the temperature of the heater 33.

[0068] The first bonding material 361 and the second bonding material 362 may have high heat resistance. The first bonding material 361 and the second bonding material 362 may have a small thermal expansion coefficient. The heater pin 30, the first bonding material 361, and the second bonding material 362 may be formed of a material that does not thermally deform at the maximum temperature of the heater 33 when the heater 33 generates heat.

[0069] Referring to FIG. 12 , the heater pin 30 may further include a depression 353. The depression 353 may be referred to as an outward recess 353. The depression 353 may be formed by the inner surface of the heater pin 30 being depressed outward from the hollow 34 in the lateral direction around the opening of the heater pin 30. The depression 353 may be formed by the inner surface of the heater pin 30 being depressed in the radially outward direction. The depression 353 may extend in the circumferential direction. The cross-sectional shape of the depression 353 may be, but is not limited to, a circle. The perimeter of the depression 353 may be greater than the perimeter of the hollow 34 in the cross-section.

[0070] The second bonding material 362 may include a center portion 362a and a protrusion portion 362b. The liquid second bonding material 362 may dry to form the center portion 362a aligned with the hollow 34 in a solid state. The center portion 362a may be cylindrical. The liquid second bonding material 362 may be injected into the recess 353 to fill the recess. The liquid second bonding material 362 injected into the recess 353 may dry to change to a solid state. The solid second bonding material 362 filling the recess 353 may be defined as the protrusion portion 362b. The protrusion portion 362b may protrude laterally from the center portion 362a. The protrusion portion 362b may protrude radially outward from the center portion 362a. The center portion 362a may protrude above or below the protrusion portion 362b. The center portion 362a and the protrusion portion 362b may be adhered to the inner surface of the heater pin 30.

[0071] Therefore, the protrusion 362b provides a step in the gap between the center portion 362a and the inner surface of the heater pin 30, thereby preventing liquid from flowing into the gap between the second bonding material 362 and the inner surface of the heater pin 30.

[0072] 13, the method for manufacturing an aerosol generating device may include step S1 of injecting a first bonding material 361 into the heater pin 30. Here, with the heater pin 30 turned upside down so that the hollow 34 and the opening face upward, the first nozzle 511 of the first injector 51 may be inserted into the hollow 34 to inject the first bonding material 361 (see FIG. 7). Here, the first bonding material 361 may be in a liquid state.

[0073] The method for manufacturing the aerosol generating device may include the step (S2) of inserting a heater 33 into the inner hollow 34 of the heater pin 30. In the step (S2) of inserting the heater 33, the heater 33 may be inserted into the hollow 34 and the first bonding material 361 so as to be immersed in the first bonding material 361 when the first bonding material 361 is in a liquid state. Alternatively, the liquid first bonding material 361 may be injected into the hollow 34 while the heater 33 is inserted into the hollow 34. Here, the heater 33 may be inserted into the hollow 34 together with a support bar 332. Because the heater 33 is wrapped around the support bar 332, the shape of the heater 33 may be stably maintained and the heater 33 may be accurately positioned while inserted into the liquid first bonding material 361.

[0074] The method for manufacturing the aerosol generating device may include a step (S3) of drying the liquid first bonding material 361. Here, the liquid first bonding material 361 is dried into a solid state and fixed to the heater pins 30, thereby fixing the internal heater 33 and support bar 332 to the heater pins 30.

[0075] The method for manufacturing an aerosol generating device may include step S4 of injecting a second bonding material 362 into the heater pin 30. In step S4 of injecting the second bonding material 362, the heater pin 30 is turned upside down so that the hollow 34 and the opening face upward, and the first nozzle 511 of the first injector 51 is inserted into the hollow 34 to inject the second bonding material 362 into the hollow 34 adjacent to the opening above the first bonding material 361 (see FIGS. 9 to 11). Here, the second bonding material 362 may be in a liquid state. Here, the heater pin 30 may further include the aforementioned recess 353, and the second bonding material 362 may flow into the recess 353. Here, the lead wire 331 may extend to the outside of the heater pin 30 through the second bonding material 362.

[0076] The method for manufacturing the aerosol generating device may include a step (S5) of drying the liquid second bonding material 362. Here, the liquid second bonding material 362 dries into a solid state and is fixed to the heater pin 30, filling the opening of the heater pin 30. The second bonding material 362 may fix a portion of the lead wire 331.

[0077] The method for manufacturing the aerosol generating device may include a step (S6) of combining the heater pin 30 and the pipe 20. Here, the pipe 20 may be formed by insert injection molding. The heater pin 30, together with the heater 33, the support bar 332, the first bonding material 361, and the second bonding material 362, may be inserted into a mold for injecting the pipe 20, and after removing the lead wire 331 from the mold, an injection material may be injected into the mold and solidified to form the pipe 20 combined with the heater pin 30.

[0078] 1 to 13, an aerosol generating device according to one aspect of the present disclosure includes a body including an insertion space, a heater pin protruding upward from a lower end of the insertion space, a heater disposed within the hollow of the heater pin, a first bonding material injected into the hollow to fix the heater, and a second bonding material injected into the hollow to cover the first bonding material and fill an opening of the hollow.

[0079] The second bonding material may be at least more waterproof or moisture resistant than the first bonding material.

[0080] The second bonding material may have a higher viscosity and adhesive strength in a liquid state than the first bonding material.

[0081] The second bonding material may be less thermally conductive than the first bonding material.

[0082] The heater may be wrapped around a long support bar inserted into the hollow and secured by the first bonding material.

[0083] The aerosol generating device may further include a lead wire electrically connected to the heater and extending from the second bonding material.

[0084] The heater pin hollow may include an outwardly facing recess extending radially from the hollow adjacent the opening, and the second bonding material may fill the recess.

[0085] Both the first bonding material and the second bonding material can be solidified from a liquid state at room temperature to be bonded to the heater pin.

[0086] The first bonding material may be injected into the hollow in a liquid state and then solidify together with the heater inserted therein, and the second bonding material may be injected into the hollow after the first bonding material has solidified.

[0087] The first bonding material and the second bonding material can adhere to an inner surface of the hollow.

[0088] A method for manufacturing an aerosol generating device including a heater pin according to one aspect of the present disclosure may include the steps of injecting a first bonding material in a liquid state into a hollow of a heater pin, inserting a heater into the hollow, solidifying the first bonding material into a solid state, injecting the second bonding material into the hollow to cover the first bonding material and fill the opening, and solidifying the second bonding material into a solid state.

[0089] The heater may be inserted into the first bonding material in a liquid state injected into the hollow.

[0090] The heater may be wrapped around a long support bar inserted into the hollow.

[0091] In a liquid state, the first bonding material may have a lower viscosity and adhesion than the first bonding material, and the second bonding material may be at least more waterproof or moisture resistant than the first bonding material and less thermally conductive than the first bonding material.

[0092] The heater pin hollow may have an outwardly facing depression extending radially from the hollow adjacent the opening, and the second bonding material may be injected to fill the depression.

[0093] The second bonding material may be dispensed such that a lead wire electrically connected to the heater extends from the second bonding material.

[0094] 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.

[0095] 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.

[0096] While the embodiments have been described above in accordance with a number of exemplary embodiments, it should be understood that many other variations and embodiments are possible for those skilled in the art that fall within the scope of the principles of the present disclosure. More particularly, various modifications and variations are possible in the components and / or arrangements of the subject combinations within the scope of the present disclosure, the drawings, and the appended claims. In addition to the modifications and variations of the components and / or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. a body including an insertion space; a heater pin protruding upward from a lower end of the insertion space; a heater disposed within the hollow of the heater pin; a first bonding material injected into the hollow to fix the heater; a second bonding material injected into the hollow to cover the first bonding material and fill the opening of the hollow.

2. The aerosol generating device according to claim 1 , wherein the second bonding material is at least more waterproof or moisture resistant than the first bonding material.

3. The aerosol generating device according to claim 1 , wherein the second bonding material has a higher viscosity and adhesive strength in a liquid state than the first bonding material.

4. The aerosol generating device according to claim 1 , wherein the second bonding material has a lower thermal conductivity than the first bonding material.

5. 2. The aerosol generating device according to claim 1, wherein the heater is wrapped around a long support bar inserted into the hollow and secured by the first bonding material.

6. The aerosol generating device of claim 1 , further comprising a lead wire electrically connected to the heater and extending from the second bonding material.

7. the heater pin hollow includes an outwardly-facing recess extending radially from the hollow at a location adjacent the opening; The aerosol generating device according to claim 1 , wherein the second bonding material fills the recessed portion.

8. The aerosol generating device according to claim 1 , wherein both the first bonding material and the second bonding material solidify from a liquid state at room temperature to adhere to the heater pin.

9. The first bonding material is injected into the hollow in a liquid state and then solidifies together with the heater inserted therein; The aerosol generating device according to claim 8 , wherein the second bonding material is injected into the hollow space after the first bonding material has solidified.

10. The aerosol generating device according to claim 1 , wherein the first bonding material and the second bonding material adhere to an inner surface of the hollow.

11. 1. A method for manufacturing an aerosol generating device including a heater pin, comprising: injecting a first bonding material in a liquid state into the hollow of the heater pin; inserting a heater into the hollow; allowing the first bonding material to harden to a solid state; injecting the second bonding material into the hollow to cover the first bonding material and fill the opening of the hollow; and solidifying the second bonding material into a solid state.

12. The heater is inserted into the first bonding material in a liquid state injected into the hollow; The method for manufacturing an aerosol generating device according to claim 11 , wherein the heater is wound around a long support bar inserted into the hollow.

13. the first bonding material has a lower viscosity and adhesive strength in a liquid state than the second bonding material; The method for manufacturing an aerosol generating device according to claim 12 , wherein the second bonding material is at least more waterproof or moisture resistant than the first bonding material and has lower thermal conductivity than the first bonding material.

14. The method for manufacturing an aerosol generating device described in claim 11, wherein the hollow of the heater pin includes an outward depression extending radially from the hollow at a position adjacent to the opening, and the second bonding material is injected to fill the depression.

15. The method for manufacturing an aerosol generating device according to claim 11 , wherein the second bonding material is injected so that a lead wire electrically connected to the heater extends from the second bonding material.

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