Air heating non-combustion smoking set heating module

Abstract

The utility model discloses a heating module of an air heating non-combustion smoking set. The heating module comprises an air channel outer pipe, an air channel inner pipe, a heating assembly and an air guide assembly which are sequentially arranged from outside to inside. The air passage outer pipe and the air passage inner pipe are nested, and at least one preheating air passage structure is formed between the air passage outer pipe and the air passage inner pipe; a cleaning structure is further arranged between the air passage outer pipe and the air passage inner pipe and used for cleaning condensate on the inner wall of the air passage outer pipe and the outer wall of the air passage inner pipe. The air guide assembly is used for conveying air heated by the heating assembly to the end, close to the mouth, of the aerosol generating section of the smoke cartridge. According to the utility model, condensate can be conveniently and quickly cleaned, the airway path is prolonged, the heating efficiency is improved, and the problem of non-uniform heating of aerosol generating substances in the smoke cartridge is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-not-burn smoking articles, in particular to a heating module of an air-heat-not-burn smoking article. Background Art

[0002] Heat-not-burn tobacco products are mainly composed of cigarette cartridges and smoking utensils. When working, the aerosol generation section in the cigarette cartridge is heated at low temperature to volatilize and produce nicotine and fragrance. In the field of heat-not-burn smoking utensils, air heating, as a new heating method, has the advantages of clean heating process and no pollution.

[0003] However, the existing heating modules of air-heated non-combustion smoking devices have the following shortcomings:

[0004] 1) Airway structure design and the cleaning of condensation in the airway have always been important research and development directions. On the one hand, it is necessary to ensure that the airway is unobstructed and the suction resistance is appropriate; on the other hand, the reflux of airflow during the suction process causes glycerol, tar and other substances to condense in the airway, which is easy to block the airway and difficult to clean. At the same time, the condensation in the airway will also affect the suction experience under the influence of a certain temperature. At present, the cleaning of condensation in the airway is mostly done by scraping with cotton swabs or other tools, which is inconvenient to operate and difficult to clean;

[0005] 2) Air heating is an indirect heating method. The air is heated first, and then the hot air is used to heat and bake the aerosol generation section of the cartridge. The low heating efficiency leads to a long preheating waiting time;

[0006] 3) The heating module of heat-not-burn tobacco products is generally located at the far end of the aerosol generating section of the cigarette cartridge. Due to the uneven heating of the aerosol generating material, the heating and baking effect of the aerosol generating material near the mouth end is often not as good as that at the far end. There may even be a situation where the aerosol generating material of the cigarette cartridge at the far end of the mouth has been carbonized but the baking at the near end of the mouth is still insufficient, resulting in inconsistent smoking experience. Utility Model Content

[0007] The utility model aims to provide an air-heating non-combustion smoking device heating module, which can conveniently and quickly clean condensation, extend the airway path, improve the heating efficiency, and improve the problem of uneven heating of aerosol-generating substances in the cigarette cartridge.

[0008] In order to achieve the above purpose, the following technical solutions are adopted:

[0009] A heating module for an air-heating non-combustion smoking device comprises an outer airway tube, an inner airway tube, a heating component and an air guide component which are arranged in sequence from the outside to the inside; the outer airway tube and the inner airway tube are nested, and at least one preheating airway structure is formed between the outer airway tube and the inner airway tube; a cleaning structure is also provided between the outer airway tube and the inner airway tube for cleaning condensation on the inner wall of the outer airway tube and the outer wall of the inner airway tube; the air guide component is used for conveying air heated by the heating component to the mouth-proximal end of the aerosol generating section of the cigarette cartridge.

[0010] Preferably, the cleaning structure includes a plurality of scraping bosses spaced apart at the lower part of the inner wall of the airway outer tube, and a scraping ring arranged on the outer circumference of the upper part of the airway inner tube; a groove cavity opening upward is formed between the interior of the scraping boss and the inner wall of the airway outer tube; a drainage hole is provided on one side of the bottom of the groove cavity of each scraping boss, and the drainage hole extends to the outer wall of the airway outer tube; a sealing plug is sealed and connected inside each drainage hole.

[0011] Preferably, a sealing connection ring is circumferentially provided on the outer wall of the airway outer tube, and one end of all sealing plugs is fixed on the inner wall of the sealing connection ring; the drain hole is opened obliquely downward from the inside to the outside to allow condensate in the groove cavity to flow out.

[0012] Preferably, a plurality of main prisms are provided at intervals on the outer side wall of the airway inner tube, and the main prisms are arranged along the axial direction of the airway inner tube; the preheating airway structure includes an airway space formed between two adjacent main prisms and the corresponding inner side wall of the airway outer tube; an air inlet hole is provided on the airway outer tube corresponding to each preheating airway structure, and an air outlet hole is provided on the airway inner tube corresponding to each preheating airway structure, and the air inlet hole and the air outlet hole are respectively located at the two ends of the preheating airway structure.

[0013] Preferably, the preheating air duct structure further includes at least one secondary prism located between two adjacent main prisms, and the secondary prism is arranged along a length direction parallel to the main prism; a notch structure is opened at the upper or lower part of the secondary prism, and the notch structures of two adjacent secondary prisms in the same preheating air duct structure are staggered up and down.

[0014] Preferably, the heating component includes a main heating element and an auxiliary heating element located below the main heating element; a heating channel is formed between the main heating element and the auxiliary heating element, and the air outlet is connected to the preheating air duct structure and the heating channel.

[0015] Preferably, the air guide component includes an air guide tube; an air guide channel is provided in the air guide tube, and the air guide channel is opened along the length direction of the air guide tube and penetrates to the bottom end surface thereof; at least one air flow hole is opened on the side wall of the air guide tube, for transporting the air in the air guide channel to the aerosol generating section of the cigarette cartridge.

[0016] Preferably, the bottom end of the air guide tube is connected to an air guide chassis, and an air guide channel is opened through the bottom end surface of the air guide chassis; a skirt structure is formed in an annular direction on the top of the air guide chassis; a plurality of first air guide holes are opened on the air guide chassis, and the first air guide holes are opened from the top end surface to the bottom end surface of the air guide chassis; the air guide chassis is inserted into the main heating body, and a plurality of second air guide holes are opened at the bottom of the main heating body to allow the heating channel to flow with the gas inside the main heating body.

[0017] Preferably, the air flow holes are opened along the length direction of the air guide tube, and the length of the air flow holes is 2 / 3 to 3 / 4 of the length of the air guide tube; the air flow holes are opened at one end of the air guide tube away from the air guide chassis.

[0018] By adopting the above scheme, the beneficial effects of the utility model are:

[0019] 1) When cleaning condensation, the adhered condensation is baked by the heating component to volatilize it. Part of the volatilized gas is directly discharged from the cigarette plugging port of the smoking device, and the other part enters the preheating airway structure in reverse to re-condense. The extended preheating airway structure can intercept more volatiles, preventing excessive volatiles from overflowing from the air inlet to other parts of the smoking device. Then, the condensation adhered to the preheating airway structure is removed through the relative movement of the airway outer tube and the airway inner tube, preventing the airway from being blocked and affecting the smoking experience;

[0020] 2) By setting a preheating airway structure between the airway outer tube and the airway inner tube, the airway path is extended and the heating efficiency is improved;

[0021] 3) By opening air guide channels and air flow holes, after the air guide tube is extended into the aerosol generating section of the cartridge, it is beneficial to evenly transfer heat to the middle and rear part (near the mouth end) of the aerosol generating section of the cartridge, so that it is heated evenly, thereby improving the problem of uneven heating of the aerosol generating material of the cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the use state of the utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of the use state of the utility model;

[0024] Figure 3 It is an exploded view of the utility model;

[0025] Figure 4 A three-dimensional diagram of the airway endotube of the utility model;

[0026] Figure 5 A three-dimensional diagram of the airway outer tube of the utility model;

[0027] Figure 6 This is a three-dimensional diagram of the air guide assembly of the utility model in use;

[0028] Figure 7 A three-dimensional diagram of the air guide assembly of the utility model from one viewing angle;

[0029] Figure 8 A three-dimensional diagram of the air guide assembly of the utility model from another perspective;

[0030] The accompanying drawings illustrate:

[0031] 1—external airway tube, 2—internal airway tube,

[0032] 3—heating component, 4—gas guide component,

[0033] 5—Preheating the airway structure, 6—Clean the structure,

[0034] 7—base bracket, 8—cigarette cartridge,

[0035] 9—control panel, 31—main heating element,

[0036] 32—auxiliary heating element, 33—heating channel,

[0037] 41 - airway, 42 - airway channel,

[0038] 43—airflow hole, 44—air guide chassis,

[0039] 45—skirt structure, 46—first air guide hole,

[0040] 51 - main prism, 52 - air inlet,

[0041] 53—air outlet, 54—sub-prism,

[0042] 55—notch structure, 61—scraping boss,

[0043] 62—wiping ring, 63—drain hole,

[0044] 64—sealing plug, 65—sealing connecting ring,

[0045] 81—Aerosol generation section. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] Reference Figures 1 to 8 As shown, the utility model achieves the purpose of cleaning condensation in the airway of the heating module by combining the preheating airway structure design with the heating control of the heating component, and provides an air heating module for non-combustion smoking devices, including an airway outer tube 1, an airway inner tube 2, a heating component 3, and an air guide component 4 arranged in sequence from the outside to the inside; the airway outer tube 1 and the airway inner tube 2 are nested, and at least one preheating airway structure 5 is formed between the airway outer tube 1 and the airway inner tube 2; a cleaning structure 6 is also provided between the airway outer tube 1 and the airway inner tube 2, which is used for cleaning condensation on the inner wall of the airway outer tube 1 and the outer wall of the airway inner tube 2; the air guide component 4 is used for conveying the air heated by the heating component 3 to the mouth-proximal end of the aerosol generating section 81 of the cigarette cartridge 8.

[0050] Among them, the cleaning structure 6 includes a plurality of scraping bosses 61 arranged at intervals on the lower part of the inner wall of the airway outer tube 1, and a scraping ring 62 arranged on the outer circumference of the upper part of the airway inner tube 2; a groove cavity opening upward is formed between the interior of the scraping boss 61 and the inner wall of the airway outer tube 1; a drainage hole 63 is opened on one side of the bottom of the groove cavity of each scraping boss 61, and the drainage hole 63 penetrates to the outer wall of the airway outer tube 1; a sealing plug 64 is sealed and connected inside each drainage hole 63.

[0051] The outer wall of the airway outer tube 1 is provided with a sealing connection ring 65, and one end of each sealing plug 64 is fixed to the inner wall of the sealing connection ring 65 for easy installation or removal. The drain hole 63 is opened downwardly from inside to outside to facilitate the condensate in the groove cavity to flow out.

[0052] The outer wall of the airway inner tube 2 is provided with a plurality of main prisms 51 at intervals, and the main prisms 51 are arranged along the axial direction of the airway inner tube 2; the preheating airway structure 5 includes an airway space formed between two adjacent main prisms 51 and the inner wall of the corresponding airway outer tube 1; an air inlet hole 52 is provided on the airway outer tube 1 corresponding to each preheating airway structure 5, and an air outlet hole 53 is provided on the airway inner tube 2 corresponding to each preheating airway structure 5, and the air inlet hole 52 and the air outlet hole 53 are respectively located at the two ends of the preheating airway structure 5. In each preheating airway structure 5, the air inlet hole 52 is provided at the air inlet end, and the air outlet hole 53 is provided at the air outlet end, and the preheating airway structure 5 is connected to the interior of the airway inner tube 2 through the air outlet hole 53.

[0053] Furthermore, the airway outer tube 1 includes an outer tube body and an upper cover detachably connected to the top of the outer tube body; the outer tube body and the upper cover can be assembled together by snapping or twisting, and one or more air inlet holes 52 are opened on the upper cover, and the number of the air inlet holes 52 can be adjusted according to the demand for air intake.

[0054] The preheating air duct structure 5 also includes at least one secondary prism 54 located between two adjacent main prisms 51, and the secondary prism 54 is arranged along a length direction parallel to the main prism 51; a notch structure 55 is opened on the upper or lower part of the secondary prism 54, and the notch structures 55 of two adjacent secondary prisms 54 in the same preheating air duct structure 5 are staggered up and down, so that the gas can flow from the air inlet 52 to the air outlet 53 (or flow in the opposite direction), and extend the air duct path.

[0055] Specifically, the scraping boss 61 is a boss structure arranged on the inner wall of the outer tube body, and the scraping boss 61 is embedded between the main prism 51 and the adjacent main prism 51 (sub-prism 54), the groove cavity is chamfered, and the groove cavity is connected to the outer wall of the airway outer tube 1 through the drain hole 63. The inner wall of the airway outer tube 1 fits with the outer wall of the main prism 51 and the sub-prism 54. Specifically, the outer wall of the scraping ring 62 is flush with the outer wall of the main prism 51 and the sub-prism 54 to avoid affecting the assembly of the airway outer tube 1 and the airway inner tube 2; a gap is left between the inner wall of the scraping ring 62 and the outer wall of the airway inner tube 2 to allow the gas of the air inlet 52 to enter between the prisms.

[0056] The airway outer tube 1 and the airway inner tube 2 can cooperate to move relative to each other along the axial direction, the scraping boss 61 can scrape the outer wall of the airway inner tube 2, and the scraping ring 62 can scrape the inner wall of the airway outer tube 1. The combination of the two can scrape condensation such as tar attached to the preheating airway structure 5 into the groove cavity, and flow to the outside through the drainage hole 63, thereby playing the role of cleaning the airway. The preheating airway structure 5 is a detachable module, which is convenient for quickly cleaning condensation.

[0057] Furthermore, the number of air inlet holes 52 is consistent with the number of preheating air duct structures 5. The number of air inlet holes 52, the number of preheating air duct structures 5, the distance between the main prism 51 and the secondary prism 54, the size of the notch structure 55 of the secondary prism 54, etc. can all be adjusted according to the change of the product's demand for airflow.

[0058] The heating assembly 3 includes a main heating element 31 and an auxiliary heating element 32 located below the main heating element 31; a heating channel 33 is formed between the main heating element 31 and the auxiliary heating element 32, and the air outlet 53 is connected to the preheating airway structure 5 and the heating channel 33. In a specific embodiment, the main heating element 31 is set as a heating cup, and the auxiliary heating element 32 is set as a heating sheet; the main heating element 31 and the auxiliary heating element 33 are installed through the base bracket 7, and a control board 9 is provided at the bottom of the base bracket 7. The main heating element 31 and the auxiliary heating element 32 are respectively connected to the control board 9 through leads. The main heating element 31 is mainly used to heat the cigarette cartridge 8, and the auxiliary heating element 32 is mainly used to bake the condensate. At the same time, the auxiliary heating element 32 can also be used to assist in heating the cigarette cartridge 8, and the main heating element 31 can also be used to assist in baking the condensate. According to the functional requirements of the smoking device, the main heating element 31 and the auxiliary heating element 32 can be controlled to work alone or simultaneously through control programs and switches, and the same or different working temperature curves are set.

[0059] When heating the cigarette cartridge 8, the main heating element 31 works alone: ​​the preheating temperature can be set between 300°C and 380°C according to different cigarette cartridges 8 (the main influencing factors are the structure of the cigarette cartridge 8, the molding method and composition of the aerosol generating section 81, etc.), and the preheating time should be controlled within 20s; the suction working temperature should be controlled between 280°C and 350°C, and the suction working time should be controlled within 300s.

[0060] When heating the cigarette cartridge 8, the main heating element 31 and the auxiliary heating element 32 work simultaneously: the auxiliary heating element 32 preferably works in the preheating stage, and the working temperature is preferably between 280°C and 350°C. The preheating working time of the auxiliary heating element 32 is consistent with that of the main heating element 31. The activation of the auxiliary heating element 32 can shorten the preheating time to 18s, or even shorter, thereby reducing the user's waiting time.

[0061] During the process of cleaning the condensate, the auxiliary heating element 32 works alone: ​​the working temperature of the auxiliary heating element 32 is controlled between 150℃ and 280℃, and the condensate can be basically volatilized after working for 30s to 120s. The working temperature and working time depend on the number of smoke cartridges 8 and the components of the smoke cartridges 8. The more smoke cartridges 8 are smoked, the more condensate there is, and the working time is relatively longer; different components of the smoke cartridges 8 lead to different aerosol components released by the smoke cartridges 8, and different aerosol components require different volatilization temperatures.

[0062] During the cleaning process of the condensate, the main heating element 31 and the auxiliary heating element 32 work simultaneously: the working temperature and working time of the main heating element 31 can be consistent with those of the auxiliary heating element 32, and the working time can be shorter than the working time of the auxiliary heating element 32 alone. The main heating element 31 provides auxiliary heat to bake the condensate, and can effectively prevent the volatilized condensate from condensing again on the main heating element 31.

[0063] The heating component 3 can be adjusted according to the actual airway structure, such as adjusting the number of auxiliary heating elements 32, adjusting the shape (including but not limited to sheet, tube, mesh, etc.) and position of the auxiliary heating elements 32, etc.

[0064] The air guide component 4 includes an air guide tube 41; an air guide channel 42 is arranged in the air guide tube 41, and the air guide channel 42 is opened along the length direction of the air guide tube 41 and penetrates to its bottom end surface; one or more air flow holes 43 are opened on the side wall of the air guide tube 41 to ensure that hot air can be dispersed to the surroundings, so that the hot air can be smoothly transported from the air guide channel 42 to the middle and rear part (near the mouth end) of the aerosol generating section 81 of the cigarette cartridge 8, so that the aerosol generating section 81 is heated evenly.

[0065] The bottom end of the air guide pipe 41 is connected to an air guide chassis 44, and an air guide channel 42 is opened through the bottom end surface of the air guide chassis 44; a skirt structure 45 is formed in an annular direction on the top of the air guide chassis 44; the air guide chassis 44 and the skirt structure 45 form a limiting groove for collecting scattered particles, tar and other residues to prevent the residues from falling into the lower air duct of the heating module and facilitate cleaning.

[0066] The air guide bottom plate 44 is provided with a plurality of first air guide holes 46, and the first air guide holes 46 are provided from the top end surface to the bottom end surface of the air guide bottom plate 44; the first air guide holes 46 are configured as micro-holes to ensure that the heated air flow can smoothly bake the aerosol generating material at the far end of the nozzle. The air guide bottom plate 44 is inserted into the main heating element 31, and a plurality of second air guide holes are provided at the bottom of the main heating element 31 to allow the heating channel 33 to circulate with the gas inside the main heating element 31.

[0067] The air flow holes 43 are opened along the length direction of the air guide tube 41 , and the length of the air flow holes 43 is 2 / 3 to 3 / 4 of the length of the air guide tube 41 ; the air flow holes 43 are opened at one end of the air guide tube 41 away from the air guide chassis 44 .

[0068] The diameter of the air duct 41 is 1 / 4 to 1 / 3 of the diameter of the aerosol generating section 81 of the cigarette cartridge. Taking the common diameter of the cigarette cartridge 8 of 7.2 mm as a reference, the diameter of the air duct 41 is preferably in the range of 1.8 mm to 2.4 mm. On the one hand, it ensures sufficient airflow, and on the other hand, it prevents the air duct 41 from excessively squeezing the aerosol generating substance, resulting in poor longitudinal airflow.

[0069] The top of the air guide tube 41 is chamfered to form a pointed structure to facilitate the insertion of the air guide tube 41 into the aerosol generating section 81 of the cigarette cartridge 8. When in use, the air guide tube 41 is inserted into the aerosol generating section 81 of the cigarette cartridge 8, and the insertion depth of the air guide tube 41 and the pointed structure is adapted to the length of the aerosol generating section 81. Taking into account the differences in the structure of the cigarette cartridge 8, there is a barrier section behind the aerosol generating section 81 of some cigarette cartridges 8. The total length of the air guide tube 41 and the pointed structure is slightly less than or equal to the length of the aerosol generating section 81 of the cigarette cartridge 8, and the insertion depth is preferably not more than the aerosol generating section 81 of the cigarette cartridge 8. The air guide component 4 is made of a high temperature resistant heat-insulating plastic material, so that the hot air can pass directly to the middle and rear part (near the mouth end) of the aerosol generating section 81 of the cigarette cartridge 8.

[0070] Since the heating module provided by the utility model is installed in the housing of the smoking device, the housing of the smoking device is provided with a cigarette insertion port at the position corresponding to the cigarette cartridge 8. After the heating component 3 bakes the condensate, part of the volatilized gas can be directly discharged from the cigarette insertion port, and the other part enters the preheating airway structure 5 in the opposite direction and re-condenses. By arranging a secondary prism 54 between two adjacent main prisms 51, and the notch structures 55 of two adjacent secondary prisms 54 in the same preheating airway structure 5 are staggered up and down, a rotating airway structure is formed, so that the airway path is extended, more volatiles can be intercepted, and excessive volatiles are prevented from overflowing from the air inlet 52 to other parts of the smoking device. Then, through the relative movement of the airway outer tube 1 and the airway inner tube 2, the condensate adhering to the preheating airway structure 5 is removed to prevent airway blockage and affect the smoking experience.

[0071] The chemical components of the aerosol in the cigarette cartridge 8 are mainly propylene glycol, water and nicotine. Experimental tests have found that the temperature required for the condensate to volatilize is lower than the working temperature of the heated cigarette cartridge, and the required heating and cleaning time is also lower than the complete working cycle time of the heated cigarette cartridge 8. Therefore, the power consumption required for heating and baking the condensate is within an acceptable range.

[0072] The utility model provides a heating module for air-heating non-combustion smoking devices, which is simple and convenient to operate and can quickly clean airway condensation, especially in some airway structures that are difficult to clean. The heating by the heating component 3 can clean the airway more cleanly, prevent airway blockage, keep the airway unobstructed, and at the same time prevent condensation in the airway from affecting the smoking taste and aroma under the action of a certain temperature.

[0073] The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model. Obviously, the above embodiments of the present utility model are only examples for clearly illustrating the present utility model, and are not limitations on the implementation methods of the present utility model. For ordinary technicians in the relevant field, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the protection scope of the claims of the present utility model.

Claims

1. A heating module for air-heating non-combustion smoking articles, characterized in that: It includes an outer airway tube, an inner airway tube, a heating component, and an air guide component which are arranged in sequence from the outside to the inside; the outer airway tube and the inner airway tube are nested, and at least one preheating airway structure is formed between the outer airway tube and the inner airway tube; a cleaning structure is also provided between the outer airway tube and the inner airway tube, which is used to clean condensation on the inner wall of the outer airway tube and the outer wall of the inner airway tube; the air guide component is used to transport the air heated by the heating component to the mouth-proximal end of the aerosol generating section of the cigarette cartridge.

2. The heating module of the air-heating non-combustion smoking device according to claim 1, characterized in that: The cleaning structure includes a plurality of scraping bosses arranged at intervals at the lower part of the inner wall of the airway outer tube, and a scraping ring arranged on the outer circumference of the upper part of the airway inner tube; a groove cavity opening upward is formed between the interior of the scraping boss and the inner wall of the airway outer tube; a drainage hole is provided on one side of the bottom of the groove cavity of each scraping boss, and the drainage hole extends to the outer wall of the airway outer tube; a sealing plug is sealed and connected inside each drainage hole.

3. The heating module of the air-heating non-combustion smoking device according to claim 2, characterized in that: A sealing connection ring is circumferentially arranged on the outer wall of the airway outer tube, and one end of all sealing plugs is fixed on the inner wall of the sealing connection ring; the drain hole is opened obliquely downward from the inside to the outside to allow condensate in the groove cavity to flow out.

4. The heating module of the air-heating non-combustion smoking device according to claim 1, characterized in that: The outer side wall of the airway inner tube is spaced apart with a plurality of main prisms, and the main prisms are arranged along the axial direction of the airway inner tube; the preheating airway structure comprises an airway space formed between two adjacent main prisms and the corresponding inner side wall of the airway outer tube; an air inlet hole is provided on the airway outer tube corresponding to each preheating airway structure, and an air outlet hole is provided on the airway inner tube corresponding to each preheating airway structure, and the air inlet hole and the air outlet hole are respectively located at the two ends of the preheating airway structure.

5. The heating module of the air-heating non-combustion smoking device according to claim 4, characterized in that: The preheating air duct structure also includes at least one secondary prism located between two adjacent main prisms, and the secondary prism is arranged along a length direction parallel to the main prism; a notch structure is opened on the upper or lower part of the secondary prism, and the notch structures of two adjacent secondary prisms in the same preheating air duct structure are staggered up and down.

6. The heating module of the air-heating non-combustion smoking device according to claim 4, characterized in that: The heating component includes a main heating element and an auxiliary heating element located below the main heating element; A heating channel is formed between the main heating element and the auxiliary heating element, and the air outlet is connected to the preheating air duct structure and the heating channel.

7. The heating module of the air-heating non-combustion smoking device according to claim 6, characterized in that: The air guide assembly includes an air guide tube; an air guide channel is arranged in the air guide tube, and the air guide channel is opened along the length direction of the air guide tube and penetrates to the bottom end surface thereof; at least one air flow hole is opened on the side wall of the air guide tube, which is used to transport the air in the air guide channel to the aerosol generating section of the cigarette cartridge.

8. The heating module of the air-heating non-combustion smoking device according to claim 7, characterized in that: The bottom end of the air guide tube is connected to the air guide chassis, and the air guide channel is opened through the bottom end surface of the air guide chassis; a skirt structure is formed in an annular direction on the top of the air guide chassis; a plurality of first air guide holes are opened on the air guide chassis, and the first air guide holes are opened from the top end surface to the bottom end surface of the air guide chassis; the air guide chassis is inserted into the main heating body, and a plurality of second air guide holes are opened at the bottom of the main heating body to allow the heating channel to flow with the gas inside the main heating body.

9. The heating module of the air-heating non-combustion smoking device according to claim 8, characterized in that: The air flow holes are opened along the length direction of the air guide tube, and the length of the air flow holes is 2 / 3 to 3 / 4 of the length of the air guide tube; the air flow holes are opened at one end of the air guide tube away from the air guide chassis.

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