Aerosol generating device

Abstract

The utility model relates to an aerosol generating device which comprises a shell, a first end and a second end, wherein the first end and the second end are oppositely arranged; the heating assembly is contained in the shell and arranged between the first end and the second end, the minimum distance between the heating assembly and the first end is smaller than the minimum distance between the heating assembly and the second end, and the heating assembly comprises a tubular ceramic base body capable of transmitting infrared light waves and a heating structure arranged on the ceramic base body; the heating structure is used for radiating infrared light waves, and the infrared light waves penetrate through the ceramic matrix to heat the aerosol generation matrix; the heat conduction structure is arranged between the first end and the second end and can conduct heat of the heating assembly to the second end. According to the aerosol generating device, the heat conduction structure is arranged between the first end and the second end of the shell, so that heat of the heating assembly can be conducted to the second end, the local temperature of the shell is reduced, the surface temperature of the shell is more uniform, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of atomization, in particular to an aerosol generating device. Background Art

[0002] In the aerosol generating device in the related art, the heating component is usually arranged in the shell. When in use, part of the energy of the heating component is generally transferred from the periphery of the heating component to the shell, causing the temperature of the local shell (especially the shell near the heating component) to be too high, thereby causing it to be hot and affecting the customer experience. Utility Model Content

[0003] The technical problem to be solved by the present utility model is to provide an improved aerosol generating device.

[0004] The technical solution adopted by the utility model to solve the technical problem is to construct an aerosol generating device, including:

[0005] a housing, a first end and a second end disposed opposite to each other;

[0006] a heating component housed in the housing and disposed between the first end and the second end, wherein the minimum distance between the heating component and the first end is smaller than the minimum distance between the heating component and the second end, the heating component comprising a tubular ceramic substrate capable of transmitting infrared light waves and a heating structure disposed on the ceramic substrate, the heating structure being configured to radiate infrared light waves, the infrared light waves transmitting through the ceramic substrate to heat the aerosol generating matrix;

[0007] The heat-conducting structure is arranged between the first end and the second end, and can conduct the heat of the heat-generating component to the second end.

[0008] In some embodiments, the thermal conductivity of the heat-conducting structure is greater than or equal to 160 W / mk.

[0009] In some embodiments, a first heat insulation structure is provided at one end of the heating component disposed toward the first end;

[0010] The thermal conductivity of the heat-conducting structure is greater than the thermal conductivity of the first heat-insulating structure.

[0011] In some embodiments, a second heat insulation structure is provided on the periphery of the heating component;

[0012] The thermal conductivity of the heat-conducting structure is greater than the thermal conductivity of the second heat-insulating structure.

[0013] In some embodiments, the heat-conducting structure includes at least two heat-conducting portions spaced apart from each other, and at least one connecting portion connecting two adjacent heat-conducting portions;

[0014] The heat conducting portion is longitudinally arranged between the first end and the second end;

[0015] The connecting portion is arranged on the outer periphery of the heating component.

[0016] In some embodiments, the heat conducting portion is in the form of a sheet;

[0017] And / or, the connecting portion is in the shape of an arc sheet.

[0018] In some embodiments, the heat conducting portion includes a first heat conducting segment and a second heat conducting segment; the first heat conducting segment is connected to the connecting portion; the second heat conducting segment is connected to an end of the first heat conducting segment away from the connecting portion and extends toward the second end;

[0019] The width of the second heat conducting segment is greater than the width of the first heat conducting segment; and / or the thickness of the second heat conducting segment is greater than the thickness of the first heat conducting segment.

[0020] In some embodiments, a plurality of ribs are spaced apart on a side of at least a portion of the heat conducting portion that is opposite to the heat generating component, and each of the ribs is longitudinally arranged between the first end and the second end.

[0021] In some embodiments, a plurality of heat dissipation fins are provided on the side wall of the housing; the plurality of heat dissipation fins are spaced apart between the first end and the second end.

[0022] In some embodiments, the thermal conductivity of the heat-conducting structure is greater than the thermal conductivity of the housing.

[0023] The implementation of the aerosol generating device of the present invention has the following beneficial effects: the aerosol generating device sets a heat-conducting structure between the first end and the second end of the shell, and then part of the heat of the heating component is conducted to the second end, thereby reducing the local temperature of the shell and making the surface temperature of the shell more uniform, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0025] Figure 1 This is a schematic structural diagram of the cooperation between the aerosol generating device and the aerosol generating substrate in the first embodiment of the present utility model;

[0026] Figure 2 yes Figure 1 A cross-sectional view of the aerosol generating device shown in conjunction with an aerosol generating substrate;

[0027] Figure 3 yes Figure 2Schematic diagram of the partial structure of the aerosol generating device and the aerosol generating substrate;

[0028] Figure 4 yes Figure 2 A schematic diagram of a partial structure of an aerosol generating device is shown;

[0029] Figure 5 yes Figure 4 a cross-sectional view of the aerosol generating device shown;

[0030] Figure 6 yes Figure 3 Schematic diagram of the heat conduction structure of the aerosol generating device shown;

[0031] Figure 7 2 is a schematic diagram of the heat conduction structure of the aerosol generating device in the second embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the heat conduction structure of the aerosol generating device in the third embodiment of the present utility model;

[0033] Figure 9 This is a schematic structural diagram of the cooperation between the aerosol generating device and the aerosol generating substrate in the fourth embodiment of the present invention;

[0034] Figure 10 yes Figure 9 a cross-sectional view of the aerosol generating device shown;

[0035] Figure 11 yes Figure 9 A schematic diagram of the structural decomposition of the aerosol generating device shown;

[0036] Figure 12 This is a schematic structural diagram of an aerosol generating device in a fifth embodiment of the present invention;

[0037] Figure 13 yes Figure 12 A cross-sectional view of the aerosol-generating device shown. DETAILED DESCRIPTION

[0038] In order to provide a clearer understanding of the technical features, objectives, and effects of the present invention, a specific embodiment of the present invention is now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "upper," "inner," "outer," etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. These directions are merely for the purpose of facilitating the description of the present invention and do not require that the devices or components referred to have specific directions. Therefore, they should not be construed as limitations on the present invention.

[0039] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Figures 1 to 3 Some preferred embodiments of the aerosol-generating device of the present invention are shown. The aerosol-generating device 100 heats the aerosol-generating substrate 200 using a heat-without-combustion method. Specifically, the aerosol-generating device 100 heats the aerosol-generating substrate 200 via infrared radiation. In this embodiment, the aerosol-generating substrate 200 can be cylindrical and can be a solid material in the form of strips, sheets, granules, or integrally formed from leaves and / or stems of plants (e.g., tobacco). Fragrance components can also be added to this solid material.

[0041] In this embodiment, the aerosol generating device 100 may include a housing 10, a fixing assembly 20, and a heating assembly 30. The housing 10 is used to accommodate the fixing assembly 20, which can be used to fix the heating assembly 30. The heating assembly 30 is disposed in the fixing assembly 20 and is then fixed to the housing 10 by the fixing assembly 20. The heating assembly 30 can be sleeved around the periphery of the aerosol generating matrix 200 and can heat the aerosol generating matrix 200 by radiating infrared light waves, so that the aerosol generating matrix 200 generates an aerosol for the user to inhale. In this embodiment, the aerosol generating device 100 may also include a power supply assembly, which can be electrically connected to the heating assembly 30 to supply power to the heating assembly 30.

[0042] In this embodiment, the housing 10 may be roughly cylindrical, specifically, it may be a flat cylindrical structure. In this embodiment, the housing 10 may include a first end 10a and a second end 10b, and the first end 10a and the second end 10b are arranged relative to each other. The inner side of the housing 10 is hollow, so that the fixing component 20 and the heating component 30 can be accommodated therein. In some embodiments, the housing 10 may include a shell 11, a cover 12, and a cover plate 13. The shell 11 is a cylindrical structure having an assembly opening 111 at the first end 10a. The cover 12 is arranged to cover the assembly opening 111 and can be fixed to the shell 11 by an interference fit. A first through hole 121 is provided on the cover 12, and the first through hole 121 can be used to allow the aerosol generating matrix 200 to be inserted into the shell 11. The cover plate 13 is provided on the cover 12, located at the top of the cover 12, and can be embedded in the cover 12. The cover plate 13 is sheet-shaped. The cover plate 13 defines a second through hole 131 . The second through hole 131 corresponds to the first through hole 121 and is interconnected to allow the aerosol generating substrate 200 to be inserted into the fixing assembly 20 .

[0043] like Figure 4 and Figure 5 As shown, in this embodiment, the fixing component 20 is arranged between the first end 10a and the second end 10b, and may include a fixing seat 21 and a fixing sleeve 22. The fixing seat 21 is used to fix the heating component 30. The heating component 30 can be inserted into the fixing seat 21 and fixed by interference fit with the fixing seat 21. In some other embodiments, it may not be limited to being fixed with the fixing seat 21 by interference fit, and may also be fixed by screwing or clamping. The fixing sleeve 22 is sleeved on the fixing seat 21 and sleeved on the outer periphery of the heating component 30. It can be coaxially arranged with the fixing seat 21, and the inner side is a hollow structure.

[0044] In this embodiment, the fixing seat 21 may include a first fixing portion 211, a second fixing portion 212 and an air guide portion 213. The first fixing portion 211 may be roughly in the shape of a hollow column, and the heating component 30 is partially inserted into the first fixing portion 211 and fixed. The second fixing portion 212 is provided at one end of the first fixing portion 211 and is in the shape of a hollow column. The cross-sectional shape of the second fixing portion 212 is adapted to the cross-sectional shape of the first fixing portion 211, and the cross-sectional size may be larger than the cross-sectional size of the first fixing portion 211. The first fixing portion 211 and the second fixing portion 212 are coaxially arranged, and the second fixing portion 212 can serve to support and fix the thermal insulation structure 40. The air guide portion 213 is provided on the end surface of the second fixing portion 212 that is arranged opposite to the first fixing portion 211. The air guide portion 213 can be a curved tube structure, and both ends are connected, and an air inlet channel 214 can be formed on the inside. The air inlet channel 214 can be connected to the outside to allow external gas to enter the second fixing portion 212 and the first fixing portion 211, and then bring out the aerosol generated by heating the aerosol generating matrix 200.

[0045] In this embodiment, the fixing sleeve 22 may include a first column 22a and a second column 22b. The first column 22a has a through-hole structure and is sleeved onto the fixing base 21. Specifically, it sleeves onto the second fixing portion 212 and is secured to the second fixing portion 212 by a snap-fit ​​connection. The second column 22b is disposed at one end of the first column 22a and is coaxial with the first column 22a. One end of the second column 22b defines an opening 221 for inserting the aerosol-generating substrate 200. The sidewall of the fixing sleeve 22 defines an air vent 222, which may be provided on the sidewall of the first column 22a.

[0046] In this embodiment, the heating component 30 is arranged between the first end 10a and the second end 10b. Specifically, the heating component 30 is housed in the fixing component 20 and is coaxially arranged with the fixing component 20. It can be a hollow structure with both ends penetrated. The heating component 30 is roughly columnar. Specifically, the heating component 30 can be cylindrical. The heating component 30 is connected to the opening 221. The minimum distance from the heating component 30 to the first end 10a is less than the minimum distance from it to the second end 10b, that is, the distance from the end of the heating component 30 arranged toward the first end 10a to the first end 10a is less than the distance from the end of the heating component 30 arranged toward the second end 10b to the second end 10b. The heating component 30 is arranged close to the first end 10a. Since the first end 10a is closer to the heating component 30, when the heating component 30 is working, the temperature of the first end 10a is usually higher than the temperature of the second end 10b.

[0047] In this embodiment, the heating component 30 may include a ceramic substrate and a heating structure. The ceramic substrate is tubular and can be transparent to infrared light. Specifically, the ceramic substrate may be a transparent ceramic substrate. The heating structure is arranged on the ceramic substrate for radiating infrared light waves, which can pass through the ceramic substrate to heat the aerosol generating matrix 200. The heating structure 32 is a membrane structure, which can be arranged on the surface of the ceramic substrate. Specifically, the heating structure 32 may include an infrared film and a heating film. The infrared film is arranged on the outer side surface 313 of the ceramic substrate. Specifically, the infrared film can be coated, wrapped or printed on the outer side surface of the ceramic substrate. The infrared film uniformly covers the entire outer side surface of the ceramic substrate. In this embodiment, the heating film can be arranged on the infrared film. It can be formed on the infrared film by coating or printing. The heating film can be arranged in a longitudinal direction, it can extend along the circumference of the ceramic substrate, or it can be a strip-shaped track. When powered, the heating film generates heat, which is then transferred to the infrared film. The infrared film then radiates infrared light waves, which are then absorbed by the aerosol-generating matrix through the ceramic substrate, thereby heating the aerosol-generating matrix 200. Alternatively, the heating film can also transfer heat directly to the ceramic substrate, which then transfers the heat to the aerosol-generating matrix 200 and heats it.

[0048] In some embodiments, the heating component 30 may also include a protective structure, which may be provided on the ceramic substrate. The thermal conductivity of the protective structure is lower than that of the ceramic substrate, which may enhance the strength of the ceramic substrate (especially the strength of the ceramic substrate with a smaller thickness), ensure that the ceramic substrate has sufficient strength to prevent cracking due to falling, and further reduce the heat capacity of the ceramic substrate, thereby achieving the purpose of rapid temperature increase and improving energy efficiency. In addition, by providing a protective structure, the ceramic substrate may be thinned, thereby increasing the transmittance efficiency of the infrared light waves of the ceramic substrate, further improving energy efficiency, and being beneficial to the control of the tube wall temperature of the ceramic substrate, thereby controlling the temperature within a suitable temperature range, such as within 48 degrees Celsius, and at the same time being beneficial to the miniaturization design of the heating component 30, and thereby being beneficial to the miniaturization design of the entire aerosol generating device 100. In some embodiments, the material of the protective structure may be glass glaze. It may be formed into an integral structure with the ceramic substrate through calcination. It should be noted that glaze is a continuous glassy layer attached to the surface of the ceramic body, or a mixed layer of glass and crystals. It is made by grinding mineral raw materials (quartz) and raw materials in a certain proportion into glaze slurry, applying it to the surface of the body, and calcining it at a certain temperature.

[0049] In this embodiment, the aerosol generating device 100 further includes a thermal insulation structure 40, which can be wrapped around the end of the heating component 30 disposed toward the first end 10a and the periphery thereof, to prevent energy loss and ensure that as much energy as possible is transferred to the aerosol generating matrix 200, thereby reducing external energy transfer and thus reducing energy consumption. The thermal insulation structure 40 is preferably made of a material with low thermal conductivity and good thermal insulation properties, such as aerogel, PI foam, vacuum tube, etc. In some embodiments, the thermal conductivity of the thermal insulation structure 40 is less than that of the ceramic matrix. Specifically, the thermal conductivity of the thermal insulation structure is less than or equal to 0.018 W / mk.

[0050] In this embodiment, the thermal insulation structure 40 may include a first thermal insulation structure 40a, which may be arranged at one end of the heating component 30 arranged toward the first end 10a. The first thermal insulation structure 40a may be annular and coaxially arranged with the heating component 30. By providing the first thermal insulation structure 40, heat conduction to the housing 10 can be blocked or reduced, thereby reducing heat loss and improving energy efficiency. In some embodiments, the material of the first thermal insulation structure 40a may be zirconia ceramic. Of course, in some embodiments, the first thermal insulation structure 40a may not be limited to zirconia ceramic, and may be aerogel or vapor phase glue.

[0051] In this embodiment, the thermal insulation structure 40 may include a second thermal insulation structure 40b, which is disposed on the periphery of the heating component 30. The second thermal insulation structure 40b may be fixed to the fixing component 20. Specifically, one end of the second thermal insulation structure 40b may be supported by the second fixing portion 212, and the other end may be connected to the first thermal insulation structure 40a. In some embodiments, the second thermal insulation structure 40b may be made of silicone.

[0052] In this embodiment, the aerosol-generating device 100 further includes a first sealing member 50, which may be a sealing ring. The first sealing member 50 may be disposed around the outer periphery of the first thermal insulation structure 40a and abut against the end wall of the fixed sleeve 22 to provide a seal. In some embodiments, the first sealing member 50 may be a silicone member or a rubber member. In some embodiments, the first sealing member 50 may be omitted.

[0053] In this embodiment, the aerosol-generating device further includes a second sealing member 60, which is disposed in the fixing base 21 and located at one end of the heating element 30. The second sealing member 60 can be interference-fitted with the heating element 30 and the fixing base 21. In some embodiments, the second sealing member 60 can be a sealing ring. In some embodiments, the second sealing member 60 can be a silicone ring or a rubber ring. In some embodiments, the second sealing member 60 can be omitted.

[0054] like Figure 3 and Figure 6As shown, in this embodiment, the aerosol generating device further includes a heat-conducting structure 70, which is disposed between the first end 10a and the second end 10b and is sleeved around the outer periphery of the fixing assembly 20. The heat-conducting structure 70 can be used to conduct part of the heat from the heating component 30 to the second end 10b, thereby preventing excessive heat in a local area of ​​the housing 10 and making the surface temperature of the housing 10 more uniform. In other words, the heat from the end of the housing 10 close to the heating component 30 is conducted to the end away from the heating component 30, thereby reducing the temperature difference between the two ends of the housing 10. As a result, the temperature at the high-temperature end of the housing 10 is reduced to less than or equal to 48°C, and the temperature difference between the high-temperature end and the low-temperature end is reduced from 30°C to 6°C, thereby improving the user experience.

[0055] In this embodiment, the thermal conductivity of the heat-conducting structure 70 is greater than that of the housing 10, specifically, greater than that of the first thermal insulation structure 40a and the second thermal insulation structure 40b. Specifically, in some embodiments, the thermal conductivity of the heat-conducting structure 70 may be greater than or equal to 160 W / mk. Furthermore, the material of the heat-conducting structure 70 may be graphene with a thermal conductivity greater than 6000 W / mk or carbon fiber with a thermal conductivity greater than 800 W / mk. In this embodiment, the heat-conducting structure 70 may include at least two heat-conducting portions 71 and at least one connecting portion 72. There may be two heat-conducting portions 71, and both heat-conducting portions 71 may be of the same shape and material. The two heat-conducting portions 71 may be spaced apart, specifically, they may be arranged opposite each other and corresponding to the air vents 222 of the fixing assembly 20. In some embodiments, each heat-conducting portion 71 may be sheet-shaped and disposed longitudinally between the first end 10a and the second end 10b. Specifically, one end of the heat-conducting portion 71 may be close to the end of the heating component 30 arranged toward the first end 10a, and the other end may extend toward the second end 10b. The length of the heat-conducting portion 71 may be less than the length of the housing 10. Part of the heat of the heating component 20 can pass through the air vents 222 and be conducted to the heat-conducting portion 71, and be conducted along the heat-conducting portion 71 to the second end 10b of the housing 10. Each connecting portion 72 is arranged between two adjacent heat-conducting portions 71. In some embodiments, the connecting portion 72 can be an arc-shaped sheet, and its two opposite sides can be connected to the heat-conducting portion 71 respectively. The connecting portion 72 can be arranged on a portion of the outer periphery of the heating component 30, which can be wrapped around the outer periphery of the fixing component 20, and then covered on a portion of the outer periphery of the heating component 30. The length of the connecting portion 72 can be adapted to the height of the heating component 30. In some embodiments, the length of the connecting portion 72 can be equivalent to the height of the heating component 30.

[0056] In this embodiment, the aerosol generating device 100 further includes a power supply component 80, which is housed in the housing 10 and can be connected to the heating component 30 for supplying power to the heating component 30. In some embodiments, the power supply component 80 may include a bracket 81, a power supply 82, a circuit board 83, and a switch 84. The bracket 81 can be used to support the power supply 82 and the circuit board 83. The power supply 82 is disposed on the bracket 81 and connected to the circuit board 83. The circuit board 83 can be disposed on the bracket 81 and connected to the heating film of the heating component 30, so that the power supply 82 can supply power to the heating film. The switch 84 can be disposed on the housing 10 and connected to the circuit board 83. The heating component 30 can be started or turned off by operating the switch 84.

[0057] Figure 7 The second embodiment of the aerosol generating device of the present invention is shown. The difference between the second embodiment and the first embodiment is that each heat-conducting portion 71 can be roughly L-shaped and can include a first heat-conducting section 711 and a second heat-conducting section 712. The first heat-conducting section 711 can be connected to the connecting portion 72 and arranged in a longitudinal direction. The first heat-conducting section 711 is roughly rectangular. The second heat-conducting section 712 is connected to the end of the first heat-conducting section 711 away from the connecting portion 72 and extends toward the second end 10b. The second heat-conducting section 712 is roughly rectangular. The width of the second heat-conducting section 712 can be greater than the width of the first heat-conducting section 711, and the thickness of the second heat-conducting section 712 can also be greater than the thickness of the first heat-conducting section 711. By widening and / or thickening the second heat-conducting section 712, the heat conduction cross section can be increased, thereby improving the heat exchange efficiency and heat exchange amount. In some other embodiments, only the width of the second heat conducting segment 712 is greater than the width of the first heat conducting segment 711 , or only the thickness of the second heat conducting segment 712 is greater than the thickness of the first heat conducting segment 711 .

[0058] Figure 8 The third embodiment of the aerosol generating device of the present invention is shown. The difference between the third embodiment and the first embodiment is that at least part of the heat-conducting portion 71 is provided with a plurality of ribs 73 at intervals on the side opposite to the heating component 30. The plurality of ribs 73 can be provided at intervals along the circumference of the heating component 30 (i.e., the width direction of the heat-conducting portion 71). Each rib 73 can be provided longitudinally between the first end 10a and the second end 10b. Specifically, the rib 73 can be located at the portion of the first heat-conducting section 711 corresponding to the portion wrapped around the outer periphery of the heating component 30. By adding the ribs 73, the surface roughness of the heat-conducting portion 71 can be increased, and the heat conduction efficiency of the interface can be improved, thereby avoiding heat accumulation on the cover 12 of the housing 10, reducing the temperature of the housing 10, and improving the user experience.

[0059] Figures 9 to 11The fourth embodiment of the aerosol-generating device of the present invention is shown. It differs from the first embodiment in that a cover 12 is sleeved over a portion of the outer periphery of the housing 11, and the cover 12 and the housing 11 are secured by a magnetic structure 90. Specifically, the magnetic structure 90 may include a first magnetic member 91 and a second magnetic member 92. The first magnetic member 91 is disposed on the cover 12, and the second magnetic member 92 is disposed on the bracket 81 in the housing 11. When the cover 12 is closed over the housing 11, the first magnetic member 91 and the second magnetic member 92 engage, thereby securing the cover 12 to the housing 11.

[0060] The cover 12 can be coated on part of the outer periphery of the heat-conducting structure 70, specifically, it can be coated on part of the outer periphery of the heat-conducting portion 71 and the connecting portion 72 of the heat-conducting structure 70. In this embodiment, the cover 12 can be made of a high thermal conductivity material, preferably, copper. The reason for choosing a high thermal conductivity material to make the cover 12 is that it can accelerate the dissipation of heat and avoid heat accumulation at the top of the cover 12 (that is, the first end 10a). The cover 12 with high thermal conductivity can accelerate the heat convection heat exchange between the cover 12 and the air, and can also conduct heat from the cover 12 to the shell 11, thereby improving the heat conduction efficiency, thereby avoiding heat accumulation in the cover 12, reducing the temperature there, and improving the user experience.

[0061] Figure 12 and Figure 13 A fifth embodiment of the aerosol-generating device of the present invention is shown. It differs from the first embodiment in that a plurality of heat dissipating fins 14 are provided on the outer wall of the housing 10. These heat dissipating fins 14 may be spaced apart between the first end 10a and the second end 10b. Specifically, the heat dissipating fins 14 may be arranged from the portion corresponding to the air inlet passage 214 toward the second end 10b. Each heat dissipating fin 14 may be generally arc-shaped and may protrude toward the outside of the housing 10. The heat dissipating fins 14 transfer heat from higher-temperature areas of the housing 10 to lower-temperature areas of the housing 10, accelerating convection heat exchange with the air and dissipating more heat into the air. This reduces the temperature difference between the two ends of the housing 10, reducing the temperature at the end of the housing 10 near the heating element 30 to below 48°C.

[0062] In this embodiment, the material of the housing 10 can be selected from a material with a high thermal conductivity, which can be greater than or equal to 160 W / mk. In some embodiments, the housing 10 can be made of a metal material with a high thermal conductivity, such as an aluminum alloy. Hard anodizing of the aluminum alloy increases the emissivity of the housing 10 to the environment (up to 0.8), thereby effectively reducing the housing temperature and improving the user experience.

[0063] It can be understood that the above embodiments only express the preferred implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. An aerosol generating device, characterized in that include: A housing (10), a first end (10a) and a second end (10b) disposed opposite to each other; A heating component (30) is accommodated in the housing (10) and is arranged between the first end (10a) and the second end (10b), wherein the minimum distance between the heating component (30) and the first end (10a) is smaller than the minimum distance between the heating component (30) and the second end (10b), and the heating component (30) comprises a tubular ceramic substrate capable of transmitting infrared light waves and a heating structure arranged on the ceramic substrate, wherein the heating structure is used to radiate infrared light waves, and the infrared light waves pass through the ceramic substrate to heat the aerosol generating matrix; The heat-conducting structure (70) is arranged between the first end (10a) and the second end (10b), and is capable of conducting the heat of the heating component (30) to the second end (10b).

2. The aerosol generating device according to claim 1, characterized in that The thermal conductivity of the heat-conducting structure (70) is greater than or equal to 160 W / mk.

3. The aerosol generating device according to claim 1, wherein: A first heat insulation structure (40a) is provided at one end of the heating component (30) facing the first end (10a); The thermal conductivity of the heat-conducting structure (70) is greater than the thermal conductivity of the first heat-insulating structure (40a).

4. The aerosol generating device according to claim 1, wherein: A second heat insulation structure (40b) is provided on the outer periphery of the heating component (30); The thermal conductivity of the heat-conducting structure (70) is greater than the thermal conductivity of the second heat-insulating structure (40b).

5. The aerosol generating device according to claim 1, wherein: The heat-conducting structure (70) comprises at least two heat-conducting parts (71) arranged at intervals, and at least one connecting part (72) connecting two adjacent heat-conducting parts (71); The heat conducting portion (71) is longitudinally arranged between the first end (10a) and the second end (10b); The connecting portion (72) is arranged on a portion of the outer periphery of the heating component (30).

6. The aerosol generating device according to claim 5, characterized in that The heat conducting portion (71) is in a sheet shape; And / or, the connecting portion (72) is in the shape of an arc sheet.

7. The aerosol generating device according to claim 5, characterized in that The heat-conducting portion (71) comprises a first heat-conducting section (711) and a second heat-conducting section (712); the first heat-conducting section (711) is connected to the connecting portion (72); the second heat-conducting section (712) is connected to an end of the first heat-conducting section (711) away from the connecting portion (72) and extends toward the second end (10b); The width of the second heat-conducting section (712) is greater than the width of the first heat-conducting section (711); and / or the thickness of the second heat-conducting section (712) is greater than the thickness of the first heat-conducting section (711).

8. The aerosol generating device according to claim 5, characterized in that A plurality of ribs (73) are arranged at intervals on a side of at least a portion of the heat conducting portion (71) that is arranged opposite to the heating component (30), and each rib (73) is arranged longitudinally between the first end (10a) and the second end (10b).

9. The aerosol generating device according to claim 1, wherein: A plurality of heat dissipation fins (14) are provided on the side wall of the housing (10); the plurality of heat dissipation fins (14) are spaced apart between the first end (10a) and the second end (10b).

10. The aerosol generating device according to claim 1, wherein: The thermal conductivity of the heat-conducting structure (70) is greater than the thermal conductivity of the housing (10).

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