Heat-not-burn smoking set and aerosol product

Abstract

A heat-not-burn smoking set and an aerosol product, the heat-not-burn smoking set comprises a tube body (11) and a heating assembly, a heating channel (107) is arranged in the tube body (11), the heating channel (107) is used for containing the aerosol product, the heating assembly is arranged corresponding to the tube body (11), and the heating assembly is used for heating the aerosol product in the heating channel (107).

Description

Heat-not-burn smoking devices and aerosol products Technical Field

[0001] The present invention relates to the field of heat-not-burn technology, and in particular to a heat-not-burn smoking device and an aerosol product. Background Art

[0002] Traditional cigarettes burn at temperatures between 500°C and 900°C, producing smoke containing harmful chemicals (such as polycyclic aromatic hydrocarbons) and causing environmental pollution. Heat-not-burn cigarettes heat (below 500°C) to release the flavoring substances in tobacco, rather than burning it. Therefore, compared to traditional cigarettes, heat-not-burn cigarettes do not undergo a combustion process and do not produce harmful substances such as tar and carbon monoxide. Therefore, heat-not-burn devices are required to heat the cigarettes to generate smoke. Technical issues

[0003] In order to evenly and thoroughly heat the cured cigarettes, a variety of devices are added to the heat-not-burn smoking device to achieve the purpose of evenly and thoroughly heating the cured cigarettes. However, this increases the structural complexity of the existing heat-not-burn smoking device and increases its production cost. Technical Solutions

[0004] In order to solve the above-mentioned defects in the prior art, the present invention aims to provide a heat-not-burn smoking device with a simple structure and low production cost.

[0005] The present invention provides a heat-not-burn smoking device, comprising a tube body and a heating component. The tube body is provided with a heating channel for accommodating aerosol products. The heating component is arranged corresponding to the tube body for heating the aerosol products in the heating channel.

[0006] Optionally, the heat-not-burn smoking device further comprises an air-guiding layer, the tube body comprises an upper tube section and a lower tube section, the air-guiding layer is arranged in the tube body, the upper tube section is located above the air-guiding layer, and the lower tube section is located below the air-guiding layer; air-guiding holes are provided on the air-guiding layer; the upper tube section is used to place the aerosol product.

[0007] Optionally, the heating component is arranged in the lower tube section; the heating component includes a first heating element, a second heating element and a heat pipe, the heat pipe is arranged in the middle position of the lower tube section, the first heating element is arranged on the outer wall of the heat pipe, and a heat conduction channel is provided in the heat pipe; the second heating element is arranged on the outside of the lower tube section, and a gap is provided between the first heating element and the second heating element.

[0008] Optionally, a heat conducting plate is provided on the outer wall of the heat conducting tube, and a heat conducting hole is provided on the heat conducting plate. The first heating element is spirally wound on the outer wall of the heat conducting tube, and the second heating element is arranged on the outside of the first heating element with the heat conducting tube as the central axis; the heat conducting hole is located between the first heating element and the second heating element, or the heat conducting hole is located above the gap between the first heating element and the second heating element.

[0009] Optionally, the upper end of the heat-conducting pipe is arranged to pass through the air-conducting layer, and the heat-conducting channel is used to transport the formed hot air flow to the upper pipe section.

[0010] Optionally, the heat-not-burn smoking device also includes an airflow generating device and a power supply; the power supply is used to power the heating component and the airflow generating device; an air inlet and an air outlet are provided on the tube body, the air inlet is arranged in the lower tube section, and the air outlet is arranged in the upper tube section; the heating component also includes a third heating element, the third heating element and the airflow generating device are arranged in the lower tube section, and the airflow generating device is used to form an airflow from the air heated by the third heating element.

[0011] Optionally, the third heating element is tubular.

[0012] Optionally, a heating hole is provided on the side wall of the third heating element.

[0013] Optionally, the third heating element is in the shape of an elongated strip, and the third heating element is bent to form a plurality of folded portions.

[0014] Optionally, the third heating element is in the shape of an elongated strip and is spirally arranged.

[0015] Optionally, the third heating element includes at least one heating net.

[0016] Optionally, a first insulating layer is provided between the air guide layer and the third heating element, and an insulating through hole is provided on the first insulating layer.

[0017] Optionally, a second heat insulation layer is further provided on the inner wall of the lower pipe section.

[0018] Optionally, the third heating element is attached to the inner wall of the lower tube section.

[0019] Optionally, a second radiation layer is further provided on the side wall of the lower tube section.

[0020] Optionally, the third heating body includes at least one heating tray and several heating columns, and the heating columns are fixedly connected to the heating tray; there are two heating trays in total, and the two ends of the heating columns are respectively fixedly connected to the two heating trays, and the heating tray is provided with heating holes.

[0021] Optionally, the air guide layer divides the heating channel into a first channel and a second channel, and air flows from the second channel to the first channel; a first heat conductor is provided in the first channel, and the bottom of the first heat conductor is fixed in the air guide layer; the heating component is located in the second channel; a heating coil is provided in the tube body, and the heating coil is provided on the side of the first channel away from the air guide layer

[0022] Optionally, the heating component includes a second heat conductor and a heating wire; the second heat conductor is installed in the first channel, and the heating wire is spirally wound on the outer wall of the second heat conductor.

[0023] Optionally, the second heat conductor includes a heating plate and an annular tube; the annular tube is fixed in the second channel, the heating plate is arranged on one end of the annular tube, and the heating plate is located below the air guide layer, and the heating plate is provided with a plurality of guide holes for air to pass through.

[0024] Optionally, a connecting groove is spirally provided on the outer side wall of the annular tube, and the heating wire is installed in the connecting groove.

[0025] Optionally, the first heat conductor and the second heat conductor are both provided with through holes passing through both ends along the center line direction, and the through holes of the first heat conductor correspond to the through holes of the second heat conductor.

[0026] Optionally, a first thermal insulation tube and a third thermal insulation layer, both of which are annular, are provided in the second channel. The third thermal insulation layer is provided around the inner wall of the tube body, and the first thermal insulation tube is installed in the inner wall of the third thermal insulation layer.

[0027] Optionally, a radiation ring for concentrating heat on the aerosol product is provided in the first channel, and the radiation ring is provided on a side of the first channel close to the air guide layer.

[0028] Optionally, the heat-not-burn smoking device also includes a second insulation tube, the heating component and the air guide layer are arranged in the second insulation tube, the air guide layer is arranged above the heating component, and the air guide layer is provided with air guide holes. Above the air guide layer is a heating channel, and the heating channel is located above the heating component; the heating component includes an air flow duct and a fourth heating element, the fourth heating element is spirally wound and arranged on the outer wall of the air flow duct, a gap is provided between the fourth heating element and the second insulation tube, the air flow duct is arranged in the middle position below the heating channel, and one end of the air flow duct passes through the air guide layer and is arranged in the heating channel.

[0029] Optionally, a spiral protrusion is provided on the outer wall of the airflow duct, and the spiral protrusion is spirally arranged to form a spirally ascending airflow channel, and the airflow channel is connected to the heating channel; the minimum outer diameter of the spiral protrusion is greater than the maximum outer diameter of the fourth heating element.

[0030] Optionally, the airflow duct further includes an air pipe, which is arranged at the end of the airflow duct and located in the heating channel. The air pipe has a tip portion, and the tip portion extends into the heating channel.

[0031] Optionally, a first heat-conducting layer is provided on a side of the air-conducting layer away from the heat-generating component, and a heat-conducting and wear-resistant layer is provided on the first heat-conducting layer.

[0032] Optionally, a second heat-conducting layer is provided on the inner wall of the heating channel, and a fourth heat-insulating layer is provided between the heating channel and the second heat-conducting layer.

[0033] Optionally, the aerosol generator has a first packaging layer that is transparent to infrared rays and the aerosol generating substance installed in the first packaging layer; the heating component also includes a fifth heating element, the fifth heating element is installed in the heating channel, the fifth heating element can be connected to electricity to generate heat radiation, the fifth heating element is hollow tubular and has a heating cavity penetrating therein, the heating cavity is connected to the heating channel, one end of the heating cavity is an inlet end, and the aerosol generator can enter the heating cavity through the inlet end; a first air hole is provided on the tube body, and a second air flow channel is formed between the tube body and the fifth heating element, the second air flow channel surrounds the fifth heating element so that the fifth heating element can simultaneously heat the aerosol generator in the heating cavity and the airflow in the second air flow channel, one end of the second air flow channel is connected to the heating cavity, and the other end is connected to the first air hole, the airflow can flow through the first air hole into the second air flow channel and enter the heating cavity after being heated by the fifth heating element.

[0034] Optionally, the fifth heating body includes an infrared radiation layer, a heating film and a base, the base is in the shape of a hollow tube, the heating film is used to generate thermal radiation when connected to electricity, the infrared radiation layer is arranged on the inner wall or outer wall of the base, and the infrared radiation layer can absorb the thermal radiation generated by the heating film and convert it into infrared rays that can pass through the first packaging layer.

[0035] Optionally, the fifth heating element includes, from inside to outside, the infrared radiation layer, the substrate, the second insulating layer, the heating film and the electrode, and the substrate is a metal tube;

[0036] Alternatively, the fifth heating element includes, from inside to outside, the infrared radiation layer, the substrate, the heating film, and the electrode, and the substrate is a ceramic tube;

[0037] Alternatively, the fifth heating element includes, from inside to outside, the substrate, the infrared radiation layer, the heating film, and the electrode, and the substrate is a transparent glass tube;

[0038] The heating film is electrically connected to the electrode and can generate heat radiation when electrically connected.

[0039] Optionally, the heat-not-burn smoking device comprises:

[0040] An air duct component, wherein the fifth heating element is disposed in the air duct component;

[0041] a first heat insulation component, the first heat insulation component being arranged on a side of the air duct component away from the outlet end and connected to the air duct component;

[0042] The second thermal insulation component is arranged on the side of the air duct component close to the inlet end and is connected to the air duct component. The air duct component and the first thermal insulation component, the second thermal insulation component and the fifth heating element together form the second air flow channel.

[0043] Optionally, the airway assembly comprises:

[0044] a heat preservation pipe, the heat preservation pipe being in a hollow tubular shape and being sleeved on the fifth heating body, with a first gap being formed between the heat preservation pipe and the fifth heating body;

[0045] The tube body is sleeved outside the insulation tube, a second gap is formed between the tube body and the insulation tube, and the first air hole is connected to the second gap;

[0046] The first gap is connected to the second gap to form the second air flow channel.

[0047] Optionally, the first air hole is arranged on the side of the tube body away from the inlet end, the first gap is connected to the second gap on the side of the insulation tube close to the inlet end, and the second gap is connected to the heating chamber on the side of the insulation tube away from the inlet end.

[0048] Optionally, the airway assembly further comprises a first guide member and a second guide member, the first guide member is arranged in the first gap, the second guide member is arranged in the second gap, and the first guide member and the second guide member are both spiral-shaped;

[0049] The first guide member abuts against the inner wall of the insulation tube and the outer wall of the fifth heating element to form a spiral first air passage; the second guide member abuts against the inner wall of the shell assembly and the outer wall of the first insulation sleeve to form a spiral second air passage;

[0050] The first air channel and the second air channel are connected to each other and form the second air flow channel.

[0051] Optionally, the first thermal insulation component includes:

[0052] a first heat-insulating plate, wherein the first heat-insulating plate is provided with a first through-hole, and the first through-hole is in communication with the heating chamber;

[0053] A valve body can be embedded in the first through-hole, and the valve body is used to cover the first through-hole.

[0054] Optionally, the second thermal insulation component includes:

[0055] a second heat-insulating plate, the second heat-insulating plate being provided with a second through-hole, the second through-hole being in communication with the inlet end;

[0056] a first sealing member, the first sealing member being annular and embedded in the second through-hole;

[0057] a first heat insulating member, the first heat insulating member being annular and embedded in the second through-hole, and the first heat insulating member being disposed between the first sealing member and the fifth heating element;

[0058] When the aerosol generator is inserted into the heating chamber, the first sealing member can be interference-fitted with the aerosol generator.

[0059] Optionally, the heating assembly includes a sixth heating element, a plurality of through holes communicating with the heating channel are opened on the side wall of the tube body, and the sixth heating element is sleeved on the outside of the tube body;

[0060] The heat-not-burn smoking device further includes a third heat-insulating component, which is sleeved on the outside of the sixth heating element. The third heat-insulating component and the sixth heating element are enclosed to form a closed space.

[0061] Optionally, the plurality of through holes are evenly spaced along the outer circumference of the tube body and are evenly spaced along the axial direction of the tube body.

[0062] Optionally, the sixth heating element and the tube body are spaced apart to form a heating cavity, and the heating cavity is connected to the through hole.

[0063] Optionally, the sixth heating element is a carbon coating and covers the outer wall of the tube body.

[0064] Optionally, the heat-not-burn smoking device further includes a second reflective layer, and the second reflective layer is arranged on the outside of the third heat insulation component.

[0065] Optionally, the third thermal insulation component includes a second thermal insulation member and a second sealing member, the second sealing member is arranged between the second thermal insulation member and the tube body, and the second thermal insulation member, the second sealing member and the sixth heating member enclose to form the enclosed space.

[0066] Optionally, the tube body includes an upper tube section and a lower tube section, the lower tube section is arranged at the bottom of the upper tube section, the sixth heating element is arranged on the outer peripheral surface of the upper tube section, and heats the aerosol generated inside the upper tube section when power is turned on, the inner diameter of the lower tube section is smaller than the inner diameter of the upper tube section, and the lower tube section is used to allow gas to enter the interior of the upper tube section.

[0067] Optionally, the heat-not-burn smoking device further comprises an air inlet, which is connected to the heating channel, and the air outside the heat-not-burn smoking device can enter the heating channel through the air inlet, carrying the smoke generated by the heating channel out of the heat-not-burn smoking device; wherein, the air inlet comprises a plurality of through holes, and the plurality of through holes are arranged at the bottom of the heat-not-burn smoking device and are distributed in concentric circles around the central axis of the tube body.

[0068] The present invention also relates to an aerosol product, which can be used in conjunction with the above-mentioned heat-not-burn smoking device, and the aerosol product comprises:

[0069] a first packaging layer, wherein the first packaging layer is made of a material that is transparent to infrared rays;

[0070] The aerosol-generating substance is disposed in the first packaging layer and can be heated to generate an aerosol medium;

[0071] When the aerosol generator is inserted into the heating channel, the outer wall of the first packaging layer can abut against the cavity wall of the heating channel.

[0072] Optionally, the aerosol generator further comprises:

[0073] filter element;

[0074] a buffer member, the buffer member being disposed between the filter member and the aerosol generating substance and connected to both, the buffer member having a cooling cavity extending therethrough in the middle thereof;

[0075] a second packaging layer, the second packaging layer covering the filter element and the buffer element and connected to the first packaging layer;

[0076] When the aerosol generator is inserted into the heating chamber, a portion of the cooling chamber can be located inside the heating chamber, and another portion protrudes outside the heating chamber.

[0077] Optionally, an air guide is embedded in the aerosol generating substance, and the air guide is tubular, one end of which is inserted into the aerosol generating substance, and the other end is flush with the end of the aerosol generating substance or extends outside the end;

[0078] When the aerosol generating material is inserted into the heating channel, the air guide can be in communication with the heating channel and guide the airflow of the heating channel into the aerosol generating material.

[0079] Optionally, the length of the air guide is 0.3 to 0.7 times the length of the aerosol generating substance. Beneficial effects

[0080] The heat-not-burn smoking device of the present invention contains aerosol-generating substances through a heating channel within the tube body. A heating element heats the air in the heating channel, thereby generating smoke from the aerosol-generating substances for inhalation. The heat-not-burn smoking device of the present invention has high heating efficiency, a simple structure, and low production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] FIG1 is a schematic structural diagram of a heat-not-burn smoking device according to a first embodiment of the present invention.

[0082] FIG2 is a schematic cross-sectional view of the heat-not-burn smoking device according to the first embodiment of the present invention.

[0083] FIG3 is a partial enlarged structural diagram of the heat-not-burn smoking device shown in FIG2 .

[0084] FIG4 is a schematic structural diagram of a heat pipe and a first heating element according to the first embodiment of the present invention.

[0085] FIG5 is a schematic structural diagram of the second heating element according to the first embodiment of the present invention.

[0086] FIG6 is a schematic structural diagram of the lower pipe section and the air guide layer according to the first embodiment of the present invention.

[0087] FIG7 is a schematic structural diagram of a heat-not-burn smoking device according to a second embodiment of the present invention.

[0088] FIG8 is a schematic structural diagram of the heat-not-burn smoking device according to the second embodiment of the present invention from another perspective.

[0089] FIG9 is a schematic cross-sectional view of a heat-not-burn smoking device according to a second embodiment of the present invention.

[0090] FIG10 is a partially enlarged structural schematic diagram of the heat-not-burn smoking device shown in FIG9 .

[0091] FIG11 is a schematic structural diagram of the third heating element of the second embodiment of the present invention.

[0092] FIG12 is a schematic structural diagram of a third heating element according to a third embodiment of the present invention.

[0093] FIG13 is a schematic structural diagram of a third heating element according to a fourth embodiment of the present invention.

[0094] FIG14 is a schematic diagram of the partial structure of the fourth heating element shown in FIG13 .

[0095] FIG15 is a schematic structural diagram of the third heating element of the fifth embodiment of the present invention.

[0096] FIG16 is a schematic structural diagram of the third heating element of the sixth embodiment of the present invention.

[0097] FIG17 is a schematic structural diagram of the third heating element of the seventh embodiment of the present invention.

[0098] FIG18 is a schematic structural diagram of a heat-not-burn smoking device according to an eighth embodiment of the present invention.

[0099] FIG19 is a bottom view of the heat-not-burn smoking device according to the eighth embodiment of the present invention.

[0100] FIG20 is a schematic diagram of the disassembled structure of the heat-not-burn smoking device according to the eighth embodiment of the present invention.

[0101] FIG21 is a schematic cross-sectional view of a heat-not-burn smoking device according to an eighth embodiment of the present invention.

[0102] FIG22 is a schematic structural diagram of a heating coil according to an eighth embodiment of the present invention.

[0103] FIG23 is a schematic diagram of the disassembled structure of the heating component according to the eighth embodiment of the present invention.

[0104] FIG24 is a schematic diagram of the extended structure of the first insulation tube and the air guide layer of the eighth embodiment of the present invention.

[0105] FIG25 is a schematic cross-sectional view of a heat-not-burn smoking device according to a ninth embodiment of the present invention.

[0106] FIG26 is a schematic diagram of the disassembled structure of the second insulation tube, the mounting tube and the heating component of the ninth embodiment of the present invention.

[0107] FIG27 is a schematic cross-sectional view of the second insulation tube, the mounting tube, and the heating assembly of the ninth embodiment of the present invention.

[0108] FIG28 is a schematic structural diagram of a heating component according to a ninth embodiment of the present invention.

[0109] FIG29 is a partially enlarged structural schematic diagram of the heat-not-burn smoking device shown in FIG25 .

[0110] FIG30 is a schematic cross-sectional view of the housing, power supply bracket, and power supply of the ninth embodiment of the present invention.

[0111] FIG31 is a schematic diagram of the disassembled structure of the housing, power supply bracket and power supply of the ninth embodiment of the present invention.

[0112] FIG32 is a schematic structural diagram of a power supply bracket according to a ninth embodiment of the present invention.

[0113] FIG33 is a schematic structural diagram of a lower cover according to a ninth embodiment of the present invention.

[0114] FIG34 is a schematic structural diagram of a fixing plate according to a ninth embodiment of the present invention.

[0115] FIG35 is a schematic structural diagram of a heat-not-burn smoking device according to a tenth embodiment of the present invention.

[0116] FIG36 is a schematic cross-sectional view of the heat-not-burn smoking device according to the tenth embodiment of the present invention.

[0117] FIG37 is a schematic diagram of the disassembled structure of the heat-not-burn smoking device according to the tenth embodiment of the present invention.

[0118] FIG38 is a schematic structural diagram of the fifth heating element of the tenth embodiment of the present invention.

[0119] FIG39 is a schematic cross-sectional structural diagram of the fifth heating element of the tenth embodiment of the present invention.

[0120] FIG40 is a schematic diagram of a partially enlarged structure of the fifth heating element shown in FIG39.

[0121] FIG41 is a schematic cross-sectional view of a cigarette according to the tenth embodiment of the present invention.

[0122] Figure 42 is a schematic diagram of the partially enlarged structure of the cigarette shown in Figure 41.

[0123] FIG43 is a schematic structural diagram of the first guide member and the second guide member according to the tenth embodiment of the present invention.

[0124] Figure 44 is a schematic structural diagram of the first guide member and the second guide member according to another embodiment of the present invention.

[0125] FIG45 is a side structural diagram of the thermal insulation pipe according to the tenth embodiment of the present invention.

[0126] FIG46 is a schematic cross-sectional view of the thermal insulation tube according to the tenth embodiment of the present invention.

[0127] FIG47 is a schematic structural diagram of the first heat insulation disk of the tenth embodiment of the present invention.

[0128] FIG48 is a schematic structural diagram of the second heat insulation disk of the tenth embodiment of the present invention.

[0129] FIG49 is a schematic structural diagram of a rectifying member according to a tenth embodiment of the present invention.

[0130] FIG50 is a schematic cross-sectional view of the rectifying member according to the tenth embodiment of the present invention.

[0131] FIG51 is a schematic diagram of a partially enlarged structure of the fifth heating element in the eleventh embodiment of the present invention.

[0132] FIG52 is a schematic diagram of a partially enlarged structure of the fifth heating element of the twelfth embodiment of the present invention.

[0133] FIG53 is a schematic diagram of the disassembled structure of the fifth heating element of the thirteenth embodiment of the present invention.

[0134] Figure 54 is a schematic diagram of the structure before the cigarette is inserted into the heat-not-burn smoking device.

[0135] Figure 55 is a schematic cross-sectional view of the structure after the cigarette is inserted into the heat-not-burn smoking device.

[0136] FIG56 is a schematic structural diagram of a heat-not-burn smoking device according to the fifteenth embodiment of the present invention.

[0137] FIG57 is a schematic cross-sectional view of the heat-not-burn smoking device according to the fifteenth embodiment of the present invention.

[0138] 58 to 63 are schematic diagrams of the disassembled heat-not-burn smoking device according to the fifteenth embodiment of the present invention.

[0139] FIG64 is a schematic structural diagram of the lower cover of the fifteenth embodiment of the present invention.

[0140] FIG65 is a bottom view of the lower cover of the fifteenth embodiment of the present invention.

[0141] Figure 66 is a schematic structural diagram of the sixth heating element of the present invention when it is in cooperation with the second sealing element.

[0142] Figure 67 is a schematic structural diagram of the second sealing member of the present invention. Modes for Carrying Out the Invention

[0143] The following describes the implementation of the present application through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0144] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may be used, and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present application.

[0145] Although the terms "first", "second", etc. are used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0146] Furthermore, as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprise", "include" indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition occur only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0147] First embodiment

[0148] As shown in Figures 1 and 2, the heat-not-burn smoking device includes a tube body 11 and a heating component. A heating channel 107 is provided in the tube body 11. The heating channel 107 is used to accommodate aerosol products. The heating component is arranged corresponding to the tube body 11. The heating component is used to heat the aerosol products in the heating channel 107 to generate aerosol.

[0149] The heat-not-burn smoking device of the present invention contains aerosol-generating substances through the heating channel 107 of the tube body 11. A heating element heats the air in the heating channel 107, thereby heating the aerosol-generating substances to produce smoke for the user to inhale. The heat-not-burn smoking device of the present invention has high heating efficiency, a simple structure, and low production cost.

[0150] Please refer to Figures 1 and 2. The heat-not-burn smoking device also includes an air-guiding layer 12; the tube body 11 includes an upper tube section 111 and a lower tube section 112. The air-guiding layer 12 is arranged in the heating channel 107 of the tube body 11. The air-guiding layer 12 divides the heating channel 107 into a first channel corresponding to the upper tube section 111 and a second channel corresponding to the lower tube section 112. The upper tube section 111 is located above the air-guiding layer 12, and the lower tube section 112 is located below the air-guiding layer 12; air-guiding holes 103 are provided on the air-guiding layer 12, and the air-guiding holes 103 connect the first channel and the second channel; the upper tube section 111 is used to place aerosol generators, such as cigarettes or consumables containing aerosol generators, and the heating component is arranged in the lower tube section 112.

[0151] Please refer to Figure 2. The heating component includes a first heating element 131, a second heating element 132 and a heat pipe 133. The heat pipe 133 is arranged in the middle position of the lower tube section 112. The first heating element 131 is arranged on the outer wall of the heat pipe 133, and a heat conduction channel 106 is provided in the heat pipe 133; the second heating element 132 is arranged on the inner wall of the lower tube section 112, and a gap is provided between the first heating element 131 and the second heating element 132.

[0152] Specifically, an air inlet 101 and an air outlet 102 are provided at opposite ends of the tube body 11. The air inlet 101 is located in the lower tube section 112, and the air outlet 102 is located in the upper tube section 111. The tube body 11 has upper and lower openings. The air inlet 101 is the lower opening of the tube body 11, and the air outlet 102 is the upper opening of the tube body 11. Outside air enters the tube body 11 through the air inlet 101, and the gas in the tube body 11 flows out through the air outlet 102. The material of the tube body 11 can be aluminum, 6063 aluminum alloy, 6061 aluminum alloy, copper, copper alloy, aluminum nitride, or silicon carbide, etc., with a thermal conductivity greater than 180 W / (m·K).

[0153] 3 to 6 , the air guide layer 12 is integrally formed at the upper end of the lower tube section 112 . The upper end of the lower tube section 112 is recessed at the edge of the air guide layer 12 to form a step 1112 . The inner sidewall of the upper tube section 111 is arranged to correspond to the outer edge of the step 1112 . The lower end of the inner sidewall of the upper tube section 111 is engaged with the step 1112 , thereby mounting the upper tube section 111 on the lower tube section 112 .

[0154] In the above arrangement, a first heating element 131 and a second heating element 132 are arranged in the second channel of the lower tube section 112. On the one hand, the first heating element 131 can quickly heat the heat-conducting tube 133 by heat conduction, so that a hot air flow with an upward trend is formed in the heat-conducting tube 133. The rising hot air flow can penetrate into the cigarette to heat it, thereby ensuring that the cigarette can produce smoke when the user takes the first puff, thereby improving the smoking experience; on the other hand, by arranging the first heating element 131 in the middle position of the lower tube section 112 and the second heating element 132 on the outside of the first heating element 131 with a gap, the first heating element 131 and the second heating element 132 together heat the air in the gap between them by heat radiation to form a hot air flow, which flows through the air-conducting layer 12 into the upper tube section 111 to heat the outer wall of the cigarette. In this way, the heating effect on the outer wall of the cigarette can be improved. Two hot air flows are formed by heating in two ways, and the two hot air flows act on the end and outer wall of the cigarette respectively, thereby improving the heating effect and uniformity of the cigarette.

[0155] Specifically, referring to Figure 5 , the second heating element 132 is a tubular structure, and the first heating element 131 is disposed at the center of the lower tube section 112. In this embodiment, referring to Figure 2 , the sidewalls of the second heating element 132 are attached to the sidewalls of the lower tube section 112. The second heating element 132 can be made of a heating material with infrared radiation capabilities, such as a carbon layer, a graphite layer, a carbon fiber layer, or a carbon nanolayer.

[0156] In other embodiments, a gap may be provided between the side wall of the second heating element 132 and the side wall of the lower tube section 112 , and the second heating element 132 may also be provided as a plurality of sheet-like heating element structures arranged in a matrix with the heat pipe 133 as the center.

[0157] The first heating element 131 may be a metal such as nickel or stainless steel, or a metal alloy such as iron-chromium-aluminum, or a heating material such as porous carbon, porous graphite, carbon fiber, carbon or graphite.

[0158] Specifically, please refer to Figures 2, 4 and 5, which also include electrodes 14 and a power supply 15; the power supply 15 is used to supply power to the heating component; the electrode 14 includes positive and negative electrodes, and two electrodes 14 are respectively provided on the first heating element 131 and the second heating element 132, and the first heating element 131 and the second heating element 132 are respectively electrically connected to the power supply 15 through the electrodes 14.

[0159] Further, referring to FIG. 2 to FIG. 4 , the outer wall of the heat pipe 133 is connected to a heat conducting sheet 134 . The heat conducting sheet 134 is provided with heat conducting holes 105 . The heat conducting sheet 134 is located below the air conducting layer 12 .

[0160] Specifically, the thermal conductive holes 105 pass through the upper and lower surfaces of the thermal conductive sheet 134. The thermal conductive holes 105 can be arranged on the thermal conductive sheet 134 in an orderly or disorderly manner. The shape of the thermal conductive holes 105 can be circular, elliptical, triangular, rectangular or regular polygonal. In this embodiment, the shape of the thermal conductive holes 105 is preferably circular, and the apertures of the thermal conductive holes 105 can be of uniform size or of different sizes.

[0161] In other embodiments, in order to extend the path of the hot air flow and increase the contact area with the heat conducting plate 134 , the heat conducting holes 105 may be interconnected to improve the heating effect on the air.

[0162] Further, referring to Figures 2 and 4, the first heating element 131 is spirally wound on the outer wall of the heat pipe 133, and the second heating element 132 is arranged on the outside of the first heating element 131 with the heat pipe 133 as the central axis; the heat conduction hole 105 is located between the first heating element 131 and the second heating element 132, or the heat conduction hole 105 is located above the gap between the first heating element 131 and the second heating element 132.

[0163] In this embodiment, referring to FIG. 2 , the heat conducting hole 105 is located above the gap formed between the first heating element 131 and the second heating element 132 .

[0164] Specifically, the first heating element 131 is strip-shaped and is spirally wound around the outer wall of the heat pipe 133 .

[0165] With the above arrangement, when the first heating element 131 is working, it can heat the heat pipe 133 by heat conduction, and then heat the air in the heat conduction channel 106 to form a hot air flow. At the same time, since the first heating element 131 is spirally arranged on the outer wall of the heat conduction tube 133, the first heating element 131 transfers heat to the side wall of the heat conduction channel 106 by heat conduction, which is also spiral, thereby forming a spiral rising hot air flow in the heat conduction channel 106 and on the outer side of the heat conduction tube 133. The spiral rising hot air flow can easily penetrate into the heat conduction channel 106. Heating inside the cigarette improves the efficiency and uniformity of heating the cigarette; the volume inside the heat conduction channel 106 is small, and the hot air flow heats up relatively faster. Therefore, the hot air flow in the heat conduction channel 106 can quickly increase to the required temperature and enter the cigarette for heating, ensuring that the user can produce smoke when taking the first puff; at the same time, the spiral rising airflow formed outside the heat conduction tube 133 can also assist the heating airway of the cigarette, forming spiral rising hot air flows on the inside and outside of the heat conduction tube 133 respectively, and the heating effect is better.

[0166] The material of the heat pipe 133 can be aluminum oxide, aluminum nitride or aluminum carbide, or aluminum oxide or zirconium oxide with a surface coating, and the material of the surface coating can be aluminum or magnesium.

[0167] Further, referring to Figure 2 , the heat conducting sheet 134 abuts against the second heating element 132. In this embodiment, the edge of the heat conducting sheet 134 abuts against the side wall of the second heating element 132, and the heat conducting pipe 133 abuts against the second heating element 132 via the heat conducting sheet 134. The heat conducting pipe 133 can be fixedly connected to the second heating element 132 by welding or bonding, thereby fixing the heat conducting pipe 133 in the pipe body 11.

[0168] In other embodiments, the air guide layer 12 may also be provided on the upper side of the second heating element 132 , or a snap-fit ​​structure such as a groove and a protrusion may be provided at the connection between the air guide layer 12 and the second heating element 132 to achieve mutual connection.

[0169] With the above arrangement, the second heating element 132 can transfer heat to the heat conducting plate 134 after generating heat. When the air flows through the heat conducting holes 105 during the rising process, the heat conducting holes 105 can further heat the air, thereby improving the heating efficiency.

[0170] 2 , the upper end of the heat pipe 133 passes through the air conducting layer 12, and the heat conducting channel 106 is used to transport the formed hot air flow to the upper pipe section 111. The cross section of the heat conducting channel 106 can be circular, elliptical, triangular, rectangular, or regular polygonal.

[0171] In the above arrangement, since the temperature of the air guide layer 12 is mainly increased by the contact of the hot air flow with the air guide layer 12, the hot air flow flowing through the air guide hole 103 is formed by the second heating element 132 and the first heating element 131 jointly heating the air in the gap between the two, and the hot air flow flowing through the air guide hole 103 and entering the upper tube section 111 first contacts the outer wall of the cigarette, so the heating speed of the inside of the cigarette is slow; and the rising air flow formed in the heat conducting channel 106 directly enters the interior of the cigarette from the end of the cigarette for heating, so the heating speed of the cigarette is faster.

[0172] Further, referring to FIG. 2 , the upper end of the heat conducting tube 133 is disposed in the upper tube section 111 , and the end of the cigarette abuts against the upper end of the heat conducting tube 133 .

[0173] Specifically, an avoidance groove 104 is opened on the air conducting layer 12 corresponding to the heat conducting pipe 133 , and the avoidance groove 104 is set corresponding to the outer diameter of the heat conducting pipe 133 .

[0174] Among them, the upper end of the heat-conducting tube 133 can be abutted against the cigarette in a variety of ways. The outer diameter of the heat-conducting tube 133 can be set to be smaller than the outer diameter of the cigarette, or the outer diameter of the heat-conducting tube 133 can be set to be larger than the outer diameter of the cigarette, and the inner diameter of the heat-conducting channel 106 can be set to be smaller than the outer diameter of the cigarette; in addition, an abutting structure can be set in the heat-conducting channel 106 or at the end of the heat-conducting tube 133. The abutting structure can be a mesh structure or a convex structure, or the end of the heat-conducting channel 106 can be recessed to form a step corresponding to the cigarette, and the end of the cigarette can be abutted on the step; the purpose of abutting the cigarette against the upper end of the heat-conducting tube 133 and allowing the hot air flow passing through the heat-conducting channel 106 to enter the cigarette for heating can be achieved.

[0175] The above arrangement is to pass the heat pipe 133 through the air guide layer 12 and place the cigarette against the heat conduction channel 106, so that a gap is provided between the end of the cigarette and the air guide layer 12, and the hot air flow flowing through the air guide hole 103 can better act on the cigarette to heat it.

[0176] Furthermore, a transverse hole (not shown) is provided on the upper side wall of the heat conducting tube 133. With the above arrangement, the hot air flowing through the heat conducting channel 106 can flow out from the transverse hole and enter the upper tube section 111, thereby improving the heating effect on the outer side of the cigarette.

[0177] Furthermore, referring to Figure 3 , a first radiation layer 16 is provided on the sidewall of the upper tube section 111. Specifically, the lower end of the first radiation layer 16 abuts against the air guide layer 12. The material of the first radiation layer 16 can be a heat-generating material with infrared radiation capabilities, such as a carbon layer, a graphite layer, a carbon fiber layer, or a carbon nanolayer.

[0178] 3 , a first reflective layer 17 is provided on the outer wall of the tube body 11. The first reflective layer 17 can be made of materials such as aluminum foil.

[0179] 3 , a first heat insulating layer 18 is further provided on the outer wall of the tube body 11. The first heat insulating layer 18 may be a vacuum heat insulating tube structure and may be made of heat insulating cotton or aerogel.

[0180] 3 , the first reflective layer 17 is disposed on the outer wall of the tube 11, and the first heat insulating layer 18 is disposed on a side of the first reflective layer 17 away from the tube 11. In other embodiments, the positions of the first reflective layer 17 and the first heat insulating layer 18 may be interchangeable.

[0181] Second embodiment

[0182] 7 to 10 , the heat-not-burn smoking device of this embodiment has substantially the same structure and function as the heat-not-burn smoking device of the first embodiment, except that the heat-not-burn smoking device further includes an airflow generating device 19 , and the power supply 15 is used to power the heating component and the airflow generating device 19 .

[0183] 7 to 10 , the heating assembly includes a third heating element 135 , which is disposed in the lower tube section 112 , and an airflow generating device 19 is disposed on one side of the third heating element 135 for forming an airflow from the air heated by the third heating element 135 .

[0184] During use, a cigarette is placed in the upper tube section 111 and abutted against the air guide layer 12, and the third heating element 135 and the airflow generating device 19 are started. The third heating element 135 generates heat and heats the air in the lower tube section 112. The airflow generating device 19 pushes the heated air in the lower tube section 112 to form a hot airflow, which passes through the air guide holes 103 in the air guide layer 12 and enters the cigarette in the upper tube section 111, thereby being able to preheat the cigarette quickly and evenly. Therefore, the user can generate a larger amount of smoke when taking the first puff using the smoking device, thereby improving the smoking experience.

[0185] Preferably, referring to FIG. 9 , in this embodiment, the airflow generating device 19 is preferably disposed on a side of the third heating element 135 away from the air guide layer 12 .

[0186] Specifically, the position of the airflow generating device 19 can be adjusted according to the shape of the third heating element 135, so as to achieve the purpose of pushing the air heated by the third heating element 135 to form an airflow and enter the upper tube section 111 to heat the cigarette.

[0187] In other embodiments, the position of the airflow generating device 19 can also be set between the third heating body 135 and the air guide layer 12; the position of the airflow generating device 19 can also be set inside the third heating body 135; the airflow generating device 19 can also be set on the rear side of the air guide layer 12 in the direction of airflow flow, and guide the air heated by the third heating body 135 to form a hot airflow by exhausting air to enter the upper tube section 111 to heat the cigarette.

[0188] The airflow generating device 19 in this embodiment is a fan, preferably an axial flow fan, which can push the air to flow in the same direction as the axis; it can also be other devices that can generate airflow.

[0189] Specifically, the tube body 11 is made of heat-insulating material, so the tube body 11 has heat-insulating properties. The tube body 11 can be a quartz tube or a glass tube, or a stainless steel tube or an alumina tube with a double-layer or multi-layer structure.

[0190] Specifically, the air inlet 101 is provided on one side of the tube body 11 located at the lower tube section 112 ; in this embodiment, the air inlet 101 is provided on one side of the airflow generating device 19 .

[0191] Specifically, the air-conducting layer 12 can be copper, aluminum metal or metal alloy, or a silicon porous structure or a grid structure, or a thermally conductive ceramic with added thermal conductive fibers. The fibers can be carbon fibers, copper, aluminum metal fibers, or aluminum nitride fibers. The fiber content is preferably less than 30%, and the ceramic matrix can be aluminum nitride.

[0192] Further, referring to Figures 9 and 10, a first insulating layer 21 is provided between the air-conducting layer 12 and the third heating element 135, and an insulating through-hole 108 is provided on the first insulating layer 21; wherein, the material of the first insulating layer 21 can be aluminum oxide, aluminum nitride or aluminum carbide; the shape of the insulating through-hole 108 can be circular, elliptical, rectangular, regular polygonal, etc.

[0193] Specifically, the upper side of the first insulating layer 21 abuts against the air guide layer 12, and the lower side of the first insulating layer 21 abuts against the third heating element 135; since the air guide layer 12 generally adopts a conductive material, the first insulating layer 21 is provided between the third heating element 135 and the air guide layer 12. On the one hand, when the air guide layer 12 is conductive, the first insulating layer 21 can prevent the third heating element 135 from contacting the air guide layer 12 and causing the third heating element 135 to short-circuit; on the other hand, the first insulating layer 21 can also transfer the heat of the third heating element 135 to the air guide layer 12 by heat conduction, and the air guide layer 12 then heats the cigarette by heat conduction, thereby further improving the heating effect on the cigarette.

[0194] 9 and 10 , a second insulation layer 22 is provided on the inner wall of the lower tube section 112. Specifically, the second insulation layer 22 is integrally formed with the air guide layer 12; the second insulation layer 22 may be a vacuum insulation tube, insulation cotton, or aerogel.

[0195] Furthermore, referring to Figure 9 , a mounting bracket 23 for mounting the airflow generating device 19 is also provided within the tube body 11. Specifically, the mounting bracket 23 includes a mounting base 231 and at least two connecting rods 232. The airflow generating device 19 passes through and is mounted on the mounting base 231. One end of the connecting rod 232 is fixedly connected to the mounting base 231, and the other end of the connecting rod 232 is fixedly connected to the inner wall of the tube body 11 or the second insulation layer 22. In this embodiment, three connecting rods 232 are provided, spaced apart from each other, and their ends are fixedly connected to the mounting base 231.

[0196] In this embodiment, one end of the connecting rod 232 is integrally connected to the mounting seat 231 , and the other end of the connecting rod 232 is integrally connected to the second heat insulation layer 22 .

[0197] Specifically, referring to Figures 7 and 9, the power supply 15 is installed on the outside of the tube body 11. A mounting plate 1121 for mounting the power supply 15 is integrally formed on the outer wall of the tube body 11. The tube body 11 has a connecting hole 109 on one side of the mounting plate 1121.

[0198] Specifically, the third heating element 135 is further connected to an electrode 14 , which includes a positive electrode and a negative electrode. The third heating element 135 is electrically connected to the power supply 15 via the two electrodes 14 ; the airflow generating device 19 is electrically connected to the power supply 15 .

[0199] In this embodiment, please refer to Figures 9 and 11, the two electrodes 14 are respectively connected to the lower end openings of the third heating element 135; the third heating element 135 is electrically connected to the power supply 15 through the electrode 14 passing through the connection hole 109; the airflow generating device 19 is electrically connected to the power supply 15 through a wire passing through the connection hole 109.

[0200] Please refer to Figures 9 and 11. In this embodiment, the third heating body 135 is a tubular structure; specifically, one end opening of the third heating body 135 is arranged toward the air guide layer 12, and the other end opening of the third heating body 135 is arranged toward the airflow generating device 19; when the smoking device is used, the third heating body 135 heats the air in the lower tube section 112, and the airflow generating device 19 pushes the air in the lower tube section 112 to form an airflow, which enters the third heating body 135 from one end opening to achieve heating, and then flows out from the other end opening of the third heating body 135 to form a hot air flow that passes through the air guide hole 103 and enters the upper tube section 111 to heat the cigarette.

[0201] The third heating element 135 may be made of metal, preferably nickel or stainless steel; or a metal alloy, preferably iron-chromium-aluminum; or a porous carbon material, preferably porous graphite, carbon fiber, etc.

[0202] In other embodiments based on this embodiment, a gap is provided between the side wall of the third heating element 135 and the side wall of the lower tube section 112 (not shown in the figure), and the second heat insulation layer 22 is further provided with a second radiation layer (not shown in the figure) on the side away from the side wall of the tube body 11, which is used to reflect the thermal radiation generated by the third heating element 135, thereby reducing heat loss. At the same time, the reflected thermal radiation heats the air again, thereby increasing the heating speed of the air.

[0203] Specifically, the second radiation layer may be an aluminum layer or a carbon layer.

[0204] In this embodiment, referring to FIG. 9 and FIG. 10 , the outer wall of the third heating element 135 is attached to the inner wall of the lower tube section 112 .

[0205] Third embodiment

[0206] As shown in FIG12 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the second embodiment, except that the structure of the third heating element 135 is different.

[0207] As shown in Figure 12, the side wall of the third heating element 135 is provided with a heating hole 201. Thus, by providing the heating hole 201 on the side wall of the third heating element 135, the contact area between the third heating element 135 and the air in the lower tube section 112 is increased, thereby improving the heating speed.

[0208] The shape of the heating hole 201 can be circular, elliptical, triangular, rectangular or regular polygonal, and is preferably rectangular in this embodiment.

[0209] In other embodiments based on this embodiment, a gap is provided between the outer wall of the third heating element 135 and the inner wall of the lower tube section 112 (not shown in the figure), and the second heat insulation layer 22 is further provided with a second radiation layer (not shown in the figure) on the side away from the side wall of the tube body 11, which is used to reflect the heat radiation generated by the third heating element 135, thereby reducing heat loss. At the same time, the reflected heat radiation heats the air again, thereby increasing the heating speed of the air.

[0210] In this embodiment, the outer wall of the third heating element 135 is attached to the inner wall of the lower tube section 112 .

[0211] Fourth embodiment

[0212] As shown in FIG. 13 and FIG. 14 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the structure of the third heating element 135 is different.

[0213] As shown in Figures 13 and 14 , the third heating element 135 is in the form of an elongated strip. The third heating element 135 is bent to form a plurality of folded portions 1351. Each folded portion 1351 is U-shaped, with adjacent folded portions 1351 opening in opposite directions. For the detailed structure of the folded portions 1351, please refer to Figure 13 , which is a schematic diagram of the structure of one folded portion 1351 of the third heating element 135 in this embodiment. In the figure, the opening of the folded portion 1351 is located on the bottom side.

[0214] In other embodiments based on this embodiment, the folded portion 1351 may also be V-shaped. With the above configuration, the third heating element 135 requires a smaller volume, has a larger area in contact with air, has a higher heating efficiency, and is conducive to reducing production costs.

[0215] In other embodiments based on this embodiment, a gap is provided between the side wall of the third heating element 135 and the side wall of the lower tube section 112 (not shown in the figure), and the second heat insulation layer 22 is further provided with a second radiation layer (not shown in the figure) on the side away from the side wall of the tube body 11, which is used to reflect the heat radiation generated by the third heating element 135, thereby reducing heat loss. At the same time, the reflected heat radiation heats the air again, thereby increasing the heating speed of the air.

[0216] In this embodiment, the outer wall of the third heating element 135 is attached to the inner wall of the lower tube section 112 .

[0217] Fifth embodiment

[0218] As shown in FIG15 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the structure of the third heating element 135 is different.

[0219] As shown in FIG. 15 , the third heating element 135 is in the shape of an elongated strip and is spirally arranged.

[0220] With the above arrangement, after the third heating element 135 arranged in a spiral shape heats the air in the lower tube section 112 , the air can form a spirally rising hot air flow, which can heat the cigarettes in the upper tube section 111 more evenly.

[0221] Specifically, the outer diameter of the third heating element 135 gradually decreases from bottom to top. This facilitates the convergence of the spiral hot air flow formed after heating toward the center, making it easier for the hot air flow to enter the cigarette interior and achieving a better heating effect. The electrodes 14 are connected to both ends of the third heating element 135.

[0222] Sixth embodiment

[0223] As shown in FIG16 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the structure of the third heating element 135 is different.

[0224] As shown in FIG. 16 , the third heating element 135 includes at least one heating net 1352 .

[0225] Specifically, the third heating body 135 includes three heating nets 1352, which are arranged at equal intervals between the heating nets 1352; the electrode 14 is arranged in a columnar shape, and two electrodes 14 are respectively connected to the three heating nets 1352. In this way, the two electrodes 14 can not only provide support for the heating nets 1352, but also the heating nets 1352 can be electrically connected to the power supply 15 through the two electrodes 14.

[0226] Seventh embodiment

[0227] As shown in FIG17 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the structure of the third heating element 135 is different.

[0228] As shown in FIG. 17 , the third heating element 135 includes at least one heating tray 1353 and a plurality of heating columns 1354 . The heating columns 1354 are fixedly connected to the heating tray 1353 .

[0229] Specifically, there are two heating trays 1353 , and both ends of the heating column 1354 are fixedly connected to the two heating trays 1353 . The heating tray 1353 is provided with heating holes 201 , and the heating column 1354 is connected to the gap between the heating holes 201 .

[0230] Among them, the heating holes 201 can be arranged on the heating tray 1353 in an orderly or disorderly manner; the shape of the heating holes 201 can be circular, elliptical, triangular, rectangular or regular polygonal, and the cross-section of the heating column 1354 can be circular, elliptical, triangular, rectangular or regular polygonal; in this embodiment, the shape of the heating holes 201 is preferably circular, and the apertures of the heating holes 201 can be of uniform size or of different sizes; the heating holes 201 are preferably arranged in an orderly manner on the heating tray 1353, specifically, the number of heating holes 201 arranged at the center position of the heating tray 1353 is greater than the number at the peripheral positions of the heating tray 1353; the heating holes 201 can also be arranged in a disorderly manner on the heating tray 1353; the cross-section of the heating column 1354 is preferably rectangular.

[0231] Specifically, the two heating trays 1353 are correspondingly arranged up and down, one electrode 14 is connected to the heating tray 1353 located on the upper side, and the other electrode 14 is connected to the heating tray 1353 located on the lower side.

[0232] Eighth embodiment

[0233] 18 to 21 , the heat-not-burn smoking device of this embodiment is substantially the same as the heat-not-burn smoking device of the above-mentioned embodiment, except that the heating components are different.

[0234] 18 to 21, the air guide layer 12 provided in the heating channel 107 divides the heating channel 107 into a first channel and a second channel; the air guide layer 12 is disc-shaped, and the air guide holes 103 on the air guide layer 12 allow air to flow from the second channel to the first channel after passing through the air guide holes 103; a first heat conductor 24 is provided in the first channel, the bottom of which is fixed in the air guide layer 12, and an aerosol generator (such as a cigarette) is installed in the first channel and plugged into the first heat conductor 24; a heating component is provided in the second channel, which is used to heat the air passing through the second channel. Heat is emitted, and air is then introduced into the first channel to heat the cigarette. A radiation ring 25 is provided in the first channel, and the radiation ring 25 is arranged around the inner wall of the tube body 11 and is located on the side of the first channel close to the air guide layer 12. The radiation ring 25 is used to concentrate the heat in the first channel onto the cigarette to improve the heating effect. A heating ring 26 is also provided in the first channel, and the heating ring 26 is arranged around the inner wall of the tube body 11 and is located on the side of the first channel away from the air guide layer 12. The heating ring 26 is used to preheat the upper part of the first channel before use to ensure smooth air flow, thereby ensuring the heating effect on the cigarette.

[0235] In the present application, the upper part of the first channel is preheated by the heating coil 26 so that there is a temperature difference between the air in the upper and lower parts of the tube body 11. Since the air flows from the low temperature to the high temperature, the temperature of the upper part of the tube body 11 is high and the temperature of the lower part is low, which can facilitate the air flow in the tube body 11 to flow from bottom to top, thereby forming an airway, thereby reducing the resistance to the upward flow of air, improving the smoothness of the air flow, and thereby improving the heating effect of the cigarette; the heating component is used to heat the air in the second channel. The heated hot air will then enter the first channel through the air guide hole 103 to heat the outside of the cigarette, and at the same time, the heat is conducted to the inside of the cigarette through the first heat conductor 24 to heat the inside, ultimately achieving simultaneous heating of the inside and outside of the cigarette, so that it is heated evenly; the radiation coil 25 is used to concentrate the heat in the first channel onto the cigarette by radiation to improve the heating effect. After the heating component and the heating coil 26 stop working, the radiation coil 25 can continue to heat the cigarette, ultimately making the entire cigarette evenly heated. Therefore, through the cooperation between the heating component, the radiation coil 25 and the heating coil 26, the air in the tube body 11 can flow smoothly, so that the air can evenly heat the cigarette, thereby ensuring the use effect of the smoking device and ensuring that the user's first puff of smoke is sufficient, thereby improving the user experience.

[0236] Furthermore, in this embodiment, the tube body 11 is cylindrical, and the heating channel 107 is arranged along the center line direction of the tube body 11 and passes through both ends of the tube body 11; the surface size of the air guide layer 12 corresponds to the cross section of the heating channel 107, so as to be horizontally installed in the heating channel 107 and perpendicular to the center line of the heating channel 107; the air guide holes 103 on the air guide layer 12 pass through the upper and lower surfaces of the air guide layer 12, and the air guide holes 103 are used to connect the first channel and the second channel, so that air can flow from the second channel to the first channel; the bottom of the first heat conductor 24 can be welded or glued. The first heat conductor 24 is fixed in the air guide layer 12, and the bottom of the first heat conductor 24 passes through the air guide layer 12 and extends to the lower surface of the air guide layer 12, so that the lower part of the first heat conductor 24 is exposed at the lower surface of the air guide layer 12. In this embodiment, the lower surface of the first heat conductor 24 is flush with the lower surface of the air guide layer 12. At the same time, the first heat conductor 24 is installed in the middle position of the air guide layer 12, so that the cigarette can be installed in the first channel and after being plugged into the first heat conductor 24, the cigarette can be set in the center, so that the air flow around the cigarette is uniform, which can improve the heating effect to a certain extent.

[0237] Furthermore, in this embodiment, the air conducting layer 12 is a grid structure made of copper, aluminum, or a metal alloy, or a porous structure made of silicon material; in addition, the air conducting layer 12 can also use thermal conductive ceramics with added thermal conductive fibers, and the thermal conductive fibers can be carbon fibers, or copper, aluminum metal fibers, or aluminum nitride fibers, and when aluminum nitride fibers are used, their content is less than 30%, and the ceramic matrix can be aluminum nitride.

[0238] In addition, the first heat conductor 24 can be made of 6063 aluminum tube, copper tube, aluminum nitride tube or silicon carbide tube, and the radiation coil 25 and the heating coil 26 are both carbon material coils, such as carbon fiber, carbon nanotube, graphite, graphene and other materials, and both are provided with an aluminum foil layer on the inner wall, so that the internal heat radiation can be concentrated together, thereby improving the heating effect on the cigarette. Therefore, after the power is cut off, the radiation coil 25 can continue to heat the cigarette.

[0239] It is worth mentioning that the heating coil 26 is connected to the electrode, and is powered through the electrode to start heating, thereby performing work.

[0240] 18 to 24 , in this embodiment, the heat-not-burn smoking device further comprises a temperature control assembly; the temperature control assembly comprises a first temperature sensor 321, a second temperature sensor 322 and a control panel 323; the first temperature sensor 321 is installed in the first channel, the second temperature sensor 322 is installed in the second channel, and the control panel 323 is installed on the tube body 11. Specifically, a card slot 202 is provided on the side wall of the heating coil 26 (see FIG. 22 ), the first temperature sensor 321 is installed in the card slot 202, a groove 203 is provided in the first insulation tube 27 (see FIG. 24 ), the second temperature sensor 322 is installed in the groove 203, and a bracket 28 is provided below the tube body 11, and the control panel 323 is installed on the bracket 28; wherein, the first temperature sensor 321 is installed in the first channel, the second temperature sensor 322 is installed in the second channel, and the control panel 323 is installed on the tube body 11. The first temperature sensor 321, the second temperature sensor 322, the heating component and the heating coil 26 are all electrically connected to the control panel 323. Specifically, the first temperature sensor 321 and the second temperature sensor 322 are both connected to the signal input end of the control panel 323, and the heating component and the heating coil 26 are both connected to the signal output end of the control panel 323; the first temperature sensor 321 is used to sense the temperature in the first channel, and the second temperature sensor 322 is used to sense the temperature in the second channel, and the sensed temperature information is transmitted to the control panel 323 through the first temperature sensor 321 and the second temperature sensor 322, and then the control panel 323 controls the operation of each component according to the temperature information to keep the temperature in the first channel and the second channel within a certain range, thereby ensuring the heating effect.

[0241] It is worth noting that, in this embodiment, the control panel 323 is installed on the tube body 11. Of course, in other embodiments, the control panel 323 can be installed in other places as long as it does not affect the control function of the control panel 323 on various components.

[0242] Please refer to Figures 21 and 23. In this embodiment, the heating component includes a second heat conductor 136 and a heating wire 137. The second heat conductor 136 is installed in the second channel, and the heating wire 137 is spirally wound on the outer wall of the second heat conductor 136. The heating wire 137 is energized to generate heat to heat the air in the second channel. The heating wire 137 can conduct the heat to the second heat conductor 136, and the heat is dissipated through the second heat conductor 136, so that the air in the second channel can be heated more evenly.

[0243] Furthermore, the heating wire 137 is made of metal, metal alloy, porous carbon, porous graphite, or carbon fiber. The metal can be nickel or stainless steel, and the metal alloy can be iron, chromium, and aluminum. The second heat conductor 136 can be made of aluminum nitride ceramic, aluminum oxide ceramic, or a metal coated with an insulating layer. The insulating layer of the metal coated with an insulating layer can be aluminum nitride, aluminum oxide, magnesium oxide, titanium oxide, or copper oxide, and the metal can be copper, aluminum, titanium, or magnesium.

[0244] In this embodiment, the second heat conductor 136 includes a heating plate 1361 and an annular tube 1362; the annular tube 1362 is a cylindrical structure and is fixed in the second channel, while the heating plate 1361 is a circular plate structure, and its cross-sectional area is larger than the cross-sectional area of ​​the annular tube 1362. The heating plate 1361 is installed on one end of the annular tube 1362, and after installation, the heating plate 1361 is located below the air guide layer 12. At the same time, a number of guide holes 204 are provided on the heating plate 1361, so that the upward-flowing air can pass through here, ensuring the smooth flow of air. In addition, the heat generated by the heating wire 137 will be conducted to the vicinity of the guide holes 204 through the second heat conductor 136. Therefore, the upward-flowing air in the second channel can be further heated here when passing through the guide holes 204. Moreover, after the air is further heated by the heating plate 1361, the air around the heating plate 1361 has higher heat, which is more conducive to the air flowing from bottom to top. Furthermore, a connecting groove 205 is spirally provided on the outer wall of the annular tube 1362 , and the heating wire 137 is installed in the connecting groove 205 , so that the heating wire 137 is closely attached to the annular tube 1362 , thereby ensuring heat conduction.

[0245] In this embodiment, both the second heat conductor 136 and the first heat conductor 24 are provided with channels running through both ends along the centerline. The channels of the second heat conductor 136 correspond to the channels of the first heat conductor 24, thereby facilitating air flow through the second heat conductor 136 and into the first heat conductor 24 to heat the interior of the cigarette. Of course, in other embodiments, the first heat conductor 24 can also be a solid structure, conducting heat solely through the properties of the material. However, compared to a hollow structure, this structure cannot conduct hot air upward, resulting in a slightly lower heating effect.

[0246] Please refer to Figures 21 and 22. In this embodiment, a first insulation tube 27 and a third insulation layer 29 are provided in the second channel, and the first insulation tube 27 and the third insulation layer 29 are both annular structures. The third insulation layer 29 is arranged around the inner wall of the tube body 11, and the first insulation tube 27 is installed in the inner wall of the third insulation layer 29. The first insulation tube 27 and the third insulation layer 29 block the heat dissipation of the second channel to maintain temperature stability. Moreover, a carbon material coating, such as a carbon fiber, carbon nanotube, graphite, graphene or other material coating, can be provided on the inner wall of the first insulation tube 27, and then aluminum foil is attached to the outer layer of the carbon material coating. In this way, the heat can be concentrated in the second channel and then conducted upward to reduce heat loss.

[0247] Furthermore, the third thermal insulation layer 29 is made of a vacuum thermal insulation layer, thermal insulation cotton or aerogel.

[0248] Referring to Figures 18, 21, and 22, in this embodiment, an insulating ring 31 is disposed between the radiating coil 25 and the heating coil 26, with the inner walls between the three being flush. Insulating ring 31 serves to block current, preventing mutual conduction between the radiating coil 25 and the heating coil 26, which could affect their respective operations. Specifically, insulating ring 31 is constructed of aluminum oxide, aluminum nitride, aluminum carbide, or silicon carbide, providing a variety of material options to adapt to different operating environments.

[0249] The specific working process of the present application is as follows: when using the heat-not-burn smoking device, the heating coil 26 is first started to heat the upper part of the first channel. At the same time, the temperature information is sensed by the first temperature sensor 321 and transmitted to the control panel 323. The temperature information is calculated and processed by the processing module inside the control panel 323. When the calculation result reaches the preset value, such as the heating time reaches 10-20 seconds and the temperature reaches 220℃-250℃, the control panel 323 stops the operation of the heating coil 26 and starts the heating wire 137 to start heating the air in the second channel. When the air flows upward to heat the cigarette, since the heating coil 26 has preheated the air in the first channel in advance, there will not be much resistance when the air in the second channel flows to the first channel, allowing the air to flow smoothly upward, and the temperature of the air will not drop sharply after reaching the first channel to affect the heating, which can ensure the heating effect and ensure that the user's first puff of smoke is sufficient to improve the user experience.

[0250] At the same time, when the heating wire 137 is working, the temperature information in the second channel is sensed by the second temperature sensor 322, and the temperature information is transmitted to the control panel 323. The temperature information is calculated and analyzed by the processing module in the control panel 323 to obtain a real-time monitoring temperature, and then the monitoring temperature is compared with a preset value. When the monitoring temperature is lower than or higher than the preset value, the operation of the heating component is adjusted accordingly through the control panel 323 to keep the temperature in the second channel within the preset value range; at the same time, part of the hot air heated in the second channel will pass through the middle channel of the first heat conductor 24 into the interior of the cigarette to heat the interior, while the other part of the hot air will pass through the air guide layer 12 into the first channel to heat the outside of the cigarette, and finally the cigarette is heated both inside and outside at the same time, thereby ensuring uniform heating. Moreover, after the heating wire 137 and the heating coil 26 complete their work and the power is disconnected, the radiation coil 25 can continue to heat the remaining cigarette to ensure that the cigarette is completely used up.

[0251] It is worth mentioning that the connection and information transmission between the first temperature sensor 321, the second temperature sensor 322 and the control panel 323, as well as the connection and signal transmission between the control panel 323 and the heating component and the heating coil 26 can all be referred to the existing technology, such as: the control panel 323 has a signal input end and a signal output end, the signal input end is connected to the first temperature sensor 321 and the second temperature sensor 322, and the signal output end is connected to the heating component and the heating coil 26; in addition, during the signal transmission process, the first temperature sensor 321 and the second temperature sensor 322 convert the temperature change information into resistance change information, that is, convert the temperature signal into a resistance signal, and then transmit it to the control panel 323, and the resistance signal is processed and analyzed by the processing module in the control panel 323, and finally converted into a voltage signal and transmitted to the heating component and the heating coil 26, so as to regulate the operation of the heating component and the heating coil 26, so as to keep the temperature at the corresponding position within a certain range.

[0252] The present application also provides a heating method comprising the above-mentioned heat-not-burn smoking device, comprising the following steps:

[0253] Insert the cigarette into the first channel and make the cigarette fit into the first heat conductor 24;

[0254] The heating coil 26 is started to heat the upper space of the first channel;

[0255] The heating component is started to heat the air in the second channel to form hot air; the hot air passes through the air guide layer 12 or the first heat conductor 24 and enters the first channel to heat the cigarette.

[0256] Ninth embodiment

[0257] As shown in Figure 25, the structure of the heat-not-burn smoking device of this embodiment is roughly the same as that of the heat-not-burn smoking device of the above-mentioned embodiment. The difference is that the heat-not-burn smoking device of this embodiment also includes an outer shell 32, a second insulation tube 33, a mounting tube 34, an insulation layer 35, a first heat-conducting layer 36, a second heat-conducting layer 37, a heat-conducting wear-resistant layer 38 and a power supply bracket 39, and the heating component includes an airflow duct 138 and a fourth heating body 139.

[0258] As shown in FIG. 25 , a first opening 206 and a second opening 207 are provided on the housing 32 , and the tube body 11 , the heating component, the electrodes and the power supply 154 are all installed in the housing 32 .

[0259] Please refer to Figures 26 and 27. The tube body 11 is installed in the second insulation tube 33. The heating component and the air guide layer 12 are arranged in the tube body 11. The air guide layer 12 is arranged above the heating component. The air guide layer 12 is provided with air guide holes 103. Above the air guide layer 12 is a heating channel 107. The heating channel 107 is used to place cigarettes.

[0260] Please refer to Figure 28. The heating component includes an air flow duct 138 and a fourth heating element 139. The fourth heating element 139 is spirally wound on the outer wall of the air flow duct 138. A gap is provided between the fourth heating element 139 and the second insulation tube 33. The air flow duct 138 is provided in the middle position below the heating channel 107, and one end of the air flow duct 138 passes through the air guide layer 12 and is provided in the heating channel 107.

[0261] With the above arrangement, on the one hand, the fourth heating element 139 helically wrapped around the outside of the airflow duct 138 can heat the airflow duct 138 by heat conduction, thereby forming an upward hot air flow in the airflow duct 138. Since the end of the airflow duct 138 passes through the air guide layer 12, the hot air flow in the airflow duct 138 directly enters the end of the cigarette, thereby being able to heat the inside of the cigarette, ensuring that the cigarette can produce smoke when the user takes the first puff, thereby improving the smoking experience. On the other hand, the fourth heating element 139 is helically wrapped around the outer wall of the airflow duct 138, forming a spiral upward hot air flow between the airflow duct 138 and the inner wall of the second thermal insulation tube 33. The spiral arrangement of the fourth heating element 139 extends the contact path with the hot air flow, thereby improving the heating effect. After passing through the air guide layer 12, the hot air flow enters the heating channel 107 and evenly heats the outer wall of the cigarette. In this way, the heating effect on the outer wall of the cigarette can be improved. Two hot air flows are formed by heating in two ways, and the two hot air flows act on the end and outer wall of the cigarette respectively, thereby improving the heating effect and uniformity of the cigarette.

[0262] Specifically, the upper tube section 111 of the tube body 11 is disposed above the lower tube section 112. The air guide layer 12 is integrally formed at the lower end of the upper tube section 111. The lower tube section 112 is located below the air guide layer 12. The heating component is disposed within the lower tube section 112. An insulation layer 35 is also provided on the inner wall of the lower tube section 112 near the heating component. The lower tube section 112 can be a stainless steel tube, an alumina tube, or a quartz tube. The insulation layer 35 is preferably made of stainless steel.

[0263] The upper pipe section 111 may also be provided with a suction nozzle (not shown in the figures) at the end thereof away from the lower pipe section 112 .

[0264] Among them, the second insulation tube 33 can be made of aerogel or insulation cotton, or it can be a vacuum tube structure. Smooth aluminum foil can also be set on the side wall of the second insulation tube 33 as a reflective layer to further improve the insulation effect and reduce heat loss.

[0265] Further, please refer to Figure 29, a spiral protrusion 1381 is provided on the outer wall of the air flow duct 138, and the spiral protrusion 1381 is spirally arranged to form a spirally ascending first air flow channel 303, and the first air flow channel 303 is connected to the heating channel 107; the minimum outer diameter of the spiral protrusion 1381 is greater than the maximum outer diameter of the fourth heating element 139.

[0266] Specifically, the spiral protrusion 1381 extends outward from the outer wall of the airflow duct 138, and the edge of the spiral protrusion 1381 collides with the inner wall of the second insulation tube 33 or the insulation layer 35, and the spiral protrusion 1381 and the inner wall of the second insulation tube 33 or the insulation layer 35 form a closed spiral first airflow channel 303.

[0267] With the above arrangement, when using a heat-not-burn smoking device, the fourth heating element 139 heats the air, forming a hot air flow with an upward trend from the first air flow channel 303. The hot air flow rises in the first air flow channel 303 with a closed spiral arrangement and continuously contacts and heats the fourth heating element 139, which can prevent the hot air flow in the first air flow channel 303 from dissipating and affecting the heating effect.

[0268] Further, referring to Figures 27 to 29, the air flow duct 138 also includes an air pipe 1382, which is arranged at the end of the air flow duct 138 and located in the heating channel 107. The air pipe 1382 has a tip portion, which extends into the heating channel 107.

[0269] Furthermore, the outer diameter of the tip portion gradually decreases from bottom to top.

[0270] Specifically, the minimum outer diameter of the end portion of the tip portion at the end away from the airflow duct 138 is smaller than the outer diameter of the cigarette.

[0271] In the above arrangement, the air pipe 1382 passes through the air guide layer 12 and is arranged in the heating channel 107, and the outer diameter of the tip portion on the air pipe 1382 gradually decreases from bottom to top, so that a part of the end portion of the tip portion can be inserted into the interior of the cigarette, so that the hot air flow in the air flow duct 138 can flow through the tip portion and deeply into the interior of the cigarette to heat it, thereby improving the heating effect on the cigarette.

[0272] Furthermore, referring to FIG. 29 , a first heat-conducting layer 36 is provided on the upper side of the air-conducting layer 12 away from the heat-generating component, and a heat-conducting wear-resistant layer 38 is further provided on the first heat-conducting layer 36 .

[0273] Among them, the first thermal conductive layer 36 can be formed by sintering one of aluminum oxide, aluminum nitride and silicon carbide, or a mixture of two or more thereof; the thermal conductive wear-resistant layer 38 can be formed by sintering one of aluminum oxide, aluminum nitride and silicon carbide, or a mixture of two or more thereof, and sprayed on the first thermal conductive layer 36 by micro-arc oxidation after aluminum alloy machining or plasma electrostatic spraying to form a coating.

[0274] Furthermore, referring to Figure 29 , a second heat-conducting layer 37 is provided on the inner wall of the heating channel 107, and a heat-insulating layer is provided between the inner wall of the upper tube section 111 and the second heat-conducting layer 37. In this embodiment, the material of the second heat-conducting layer 37 is preferably graphite. The heat-insulating layer can be a stainless steel tube, an alumina tube, or a quartz tube, for example.

[0275] Further, referring to Figures 29 to 32, the power supply 15 is installed in the power supply bracket 39.

[0276] Please refer to Figures 31 and 32. The outer shell 32 includes a shell body 321 and an upper cover 322. The shell body 321 is provided with an opening, and the upper cover 322 is covered on the opening. The power supply bracket 39 is fixedly connected to the lower surface of the upper cover 322 close to the shell body 321. The outer shell 32 is provided with a fastener 324 for fixing the power supply bracket 39.

[0277] Specifically, an electrode 14 is connected between the power supply 15 and the fourth heating element 139, and the power supply 15 and the fourth heating element 139 are electrically connected via the electrode 14. The electrode 14 can be made of copper, silver, gold, foil, aluminum, nickel or other materials.

[0278] Further, referring to Figures 29 to 33, the outer shell 32 also includes a lower cover 323; the opposite ends of the shell 321 are respectively provided with openings for installing the upper cover 322 and the lower cover 323; the first opening 206 is formed on the lower cover 323, and the second opening 207 is formed on the upper cover 322; the lower cover 323 is provided with a fastener 324, and the end of the fastener 324 passes through the lower cover 323 and is connected to the power supply bracket 39.

[0279] Specifically, the upper and lower ends of the housing 321 are frame structures with openings. The upper cover 322 is mounted on the upper opening of the housing 321, and the lower cover 323 is mounted on the lower opening of the housing 321. The first opening 206 extends through the lower cover 323, and the second opening 207 extends through the upper cover 322. In this embodiment, the upper cover 322 and the lower cover 323 are respectively mounted on the openings at both ends of the housing 321 by snapping together.

[0280] Specifically, referring to Figures 30 to 32 , a power supply bracket 39 is used to securely mount the power supply 15 within the housing 321. The power supply bracket 39 is disposed on the lower surface of the upper cover 322 near the lower cover 323 , and the power supply bracket 39 and the upper cover 322 are integrally formed. The power supply 15 is used to power the heating element. Electrodes 14 are also connected between the heating element and the power supply 15 , electrically connecting the heating element to the power supply 15 via the electrodes 14. The power supply 15 can be a common power source in the prior art, such as a lithium battery.

[0281] In this embodiment, referring to Figures 31 and 32 , the power supply bracket 39 is a frame structure with an opening on only one side for accessing the power supply 15. The power supply bracket 39 also has a first protrusion 391 at its bottom near the lower cover 323. When the upper cover 322 and the lower cover 323 are respectively installed on the housing 321, the power supply bracket 39 abuts against the lower cover 323 via the first protrusion 391. This facilitates assembly of the heat-not-burn smoking device by simply placing the power supply 15 into the power supply bracket 39.

[0282] Specifically, referring to Figures 30 to 34, a fixing plate 325 is provided in the housing 32 for fixing the power module. A fastener 324 is provided on the fixing plate 325, and an end of the fastener 324 passes through the fixing plate 325 and is connected to the power bracket 39.

[0283] Specifically, the fixing plate 325 is disposed on one side of the power supply bracket 39, and the heat-not-burn smoking device assembly is disposed on the opposite side of the power supply bracket 39. The fixing plate 325 is provided with a second protrusion 3251 on the side proximal to the power supply bracket 39, which contacts the power supply 15. A relief groove 209 is provided on the side of the power supply bracket 39 corresponding to the second protrusion 3251. The end of the second protrusion 3251 passes through the relief groove 209 and contacts the power supply 15, thereby pressing the power supply 15 into the power supply bracket 39. The interaction between the second protrusion 3251 and the relief groove 209 simultaneously limits the position of the power supply bracket 39. The fixing plate 325 is also provided with a third protrusion 3253 on the side proximal to the housing 321, which contacts the inner wall of the housing 321.

[0284] In this embodiment, referring to Figures 6 and 7 , both the lower cover 323 and the fixing plate 325 have through-holes for fasteners 324. The power supply bracket 39 has a connecting hole for fasteners 324. The ends of the fasteners 324 pass through the through-holes and connect with the connecting holes of the power supply bracket 39. The ends of the fasteners 324 contact the power supply 15, thereby tightening the power supply 15. The through-holes in the fixing plate 325 are located above and below the second protrusion 3251. The fasteners 324 can be screws, rivets, or other commonly used fasteners 324.

[0285] Specifically, referring to Figures 30, 31, 33 and 34, the fixing plate 325 is provided with a positioning protrusion 3252 near the bottom of the lower cover 323, and the lower cover 323 is provided with a positioning groove 302 corresponding to the positioning protrusion 3252, and the positioning protrusion 3252 is set in the positioning groove 302.

[0286] The above arrangement ensures the stability of the power supply 15 installed in the power supply bracket 39 by installing the power supply 15 in the power supply bracket 39 and pressing the power supply 15 by fasteners 324 arranged in two directions (the fasteners 324 on the fixing plate 325 press the power supply 15 in the horizontal direction and the fasteners 324 on the lower cover 323 press the power supply 15 in the vertical direction) and the second protrusion 3251.

[0287] Further, please refer to Figures 25, 26 and 29. One end of the mounting tube 34 is connected to the second insulation tube 33, and the other end of the mounting tube 34 is connected to the first opening 206. The outer wall of the second insulation tube 33 conflicts with the inner wall of the second opening 207. The upper end of the mounting tube 34 is provided with a connecting portion 341 for installing the second insulation tube 33.

[0288] In this embodiment, referring to Figure 26 , a connection portion 341 is provided at the end of the mounting tube 34. A stepped portion 342 is formed in a recessed manner on the inner wall of the end of the mounting tube 34. Stepped portion 342 corresponds to the outer diameter of the connection portion 341. The connection portion 341 is preferably made of an elastic material, in this embodiment silicone. This material's inherent elasticity allows for more stable installation of the second thermal insulation tube 33, while also providing a certain degree of cushioning and protection for the second thermal insulation tube 33.

[0289] In other embodiments, the connecting portion 341 may also be a step portion 342 formed at the end of the mounting tube 34 . The step portion 342 is arranged corresponding to the end of the second thermal insulation tube 33 , and the end of the second thermal insulation tube 33 is pressed tightly at the step portion 342 .

[0290] Specifically, referring to Figures 26 and 30, the outer wall of the mounting tube 34 is provided with two first connecting ears 343, the power supply bracket 39 is provided with a second connecting ear 392 on one side of the mounting tube 34, and the inner wall of the shell 321 is provided with a third connecting ear 326. The third connecting ear 326 and a first connecting ear 343 are overlapped with each other, and the second connecting ear 392 and another first connecting ear 343 are overlapped with each other; the first connecting ear 343 and the second connecting ear 392 and the first connecting ear 343 and the third connecting ear 326 are fixedly connected by fasteners 324 in the prior art such as screws or rivets, thereby completing the fixation of the mounting tube 34.

[0291] The assembly method of the present invention comprises the following steps:

[0292] S1. Place the power supply 15 in the power supply bracket 39 and snap-fit ​​the lower cover 323 onto the lower port of the housing 321 .

[0293] S2. Install the assembly consisting of the second insulation tube 33, the tube body 11, the heating component and the mounting tube 34 on the lower cover 323. In step S1, the assembly can also be installed on the lower cover 323 first and then installed on the shell 321 together.

[0294] S3 . Then, the fixing plate 325 is fixedly mounted on the power supply bracket 39 by the fasteners 324 .

[0295] S4. Install the power supply bracket 39 and the fixing plate 325 fixed together in step S3 in the shell 321, and guide and position them with the cooperation of the positioning protrusion 43 and the positioning groove 302, so that the upper cover 322 can be just engaged and fixed with the upper end opening of the shell 321.

[0296] S5. Install the fastener 324 on the through hole of the lower cover 323.

[0297] The above assembly method has simple assembly steps and good installation stability of the power supply 15.

[0298] Tenth embodiment

[0299] As shown in Figures 35, 36, and 37, the heat-not-burn smoking device of this embodiment has substantially the same functions as the heat-not-burn smoking device of the above-mentioned embodiment, except that the heat-not-burn smoking device of this embodiment further includes an airway assembly, a first heat insulation assembly, a second heat insulation assembly, and a rectifying member 44, and the heating assembly includes a fifth heating element 141. In this embodiment, the fifth heating element 141 is installed in the heating channel 107 of the tube body 11; the fifth heating element 141 is tubular and has a heating cavity 309 that extends through opposite end surfaces of the fifth heating element 141 and communicates with the heating channel 107. The upper end of the heating cavity 309 is an inlet end, and the lower end of the cigarette is a combustible end. The combustible end can enter the heating cavity 309 through the inlet end and be heated. When powered on, the fifth heating element 141 can conduct circumferential heat conduction and infrared heat radiation into the heating cavity 309.

[0300] Please refer to Figures 35 to 42. The heat radiation generated by the fifth heating element 141 after being powered on can be conducted into the heating chamber 309, performing circumferential heat transfer heating on the cigarette 60 inserted into the heating chamber 309, and the infrared radiation layer 1411 can absorb the heat radiation generated by the fifth heating element 141 and convert it into infrared rays that can pass through the cigarette paper, thereby performing infrared thermal radiation heating on the aerosol-generating substance 62 in the cigarette paper.

[0301] Specifically, referring to Figures 37 to 40, the fifth heating element 141 includes, from the inside to the outside, an infrared radiation layer 1411, a substrate (the substrate in this embodiment is a metal tube 1412), a second insulating layer 1415, a heating film 1416 and an electrode 14. The substrate is in the shape of a hollow tube. Preferably, the metal tube 1412 is a round tube, which can be made of a single metal material or an alloy material. In this embodiment, the metal tube 1412 is preferably a stainless steel tube or a titanium alloy tube. The inner wall of the metal tube 1412 can be penetrated by immersion, spraying, or the like. The infrared radiation layer 1411 is prepared by coating and printing, and a second insulating layer 1415 is first prepared on the outer wall of the metal tube 1412, and then the heating film 1416 and the electrode 14 are prepared. The second insulating layer 1415 is used to isolate the metal tube 1412 from the heating film 1416, to prevent the current on the heating film 1416 from being conducted to the metal tube 1412, to avoid the metal tube 1412 and the heating film 1416 both acting as heating elements to cause the resistance to decrease, thereby avoiding affecting the heating effect of the fifth heating body 141.

[0302] The infrared radiation layer 1411 is used to absorb the thermal radiation generated by the fifth heating element 141 and convert it into infrared light that can pass through the first packaging layer 61. In this embodiment, the infrared radiation layer 1411 is preferably a blackbody infrared radiation coating, made from a mixture of materials such as ceramics, silicon carbide, carbon nanotubes, and a sintering agent. This coating has high emissivity and high absorption properties, resulting in a surface emissivity of infrared thermal radiation exceeding 0.95. This improves the efficiency of the infrared radiation layer 1411 in converting infrared light, thereby enhancing the uniform heating effect of the heat-not-burn smoking device. In other embodiments, the infrared radiation layer 1411 may also be made of far-infrared radiation coatings, high-temperature-resistant infrared radiation coatings, etc.

[0303] Furthermore, the heating film 1416 is a heating film 1416 made of metal, which can be made of a single metal material such as gold, platinum, palladium, nickel, chromium, zirconium, titanium, etc., or it can be made of an alloy material such as silver-gold alloy, silver-platinum alloy, silver-palladium alloy, gold-platinum alloy, gold-palladium alloy, platinum-palladium alloy, nickel-chromium alloy, titanium-nickel alloy, titanium-chromium alloy, titanium-zirconium alloy, iron-chromium-aluminum alloy, stainless steel alloy, etc.

[0304] Electrode 14 includes a first electrode 14a and a second electrode 14b, both of which are silver electrodes. A protective layer 14c is provided between the first and second electrodes 14a, 14b. Protective layer 14c is applied to the outer wall of heating film 1416 to protect heating film 1416 and prevent electrical conduction between the first and second electrodes 14a, 14b. Protective layer 14c is made of an insulating material. In this embodiment, protective layer 14c is preferably made of ceramic glaze, but may also be made of insulating materials such as mica sheets and plastic. Specifically, first electrode 14a, second electrode 14b, and protective layer 14c are all cylindrical in shape. The first and second electrodes 14a, 14b are respectively sleeved on opposite ends of heating film 1416, with protective layer 14c provided in the middle. In some embodiments, protective layer 14c may also be formed by combining multiple annular cylinders.

[0305] As shown in Figures 36 and 37, the tube body 11 is provided with a first air hole 304, and a second air flow channel is formed between the tube body 11 and the fifth heating element 141. The second air flow channel surrounds the outside of the fifth heating element 141 so that the fifth heating element 141 can simultaneously heat the aerosol product in the heating chamber 309 and the air flow in the second air flow channel. One end of the second air flow channel is connected to the heating chamber 309, and the other end is connected to the first air hole 304. Air flow can flow through the first air hole 304 into the second air flow channel and enter the heating chamber 309 after being heated by the fifth heating element 141. In this embodiment, the air duct assembly is sleeved on the outside of the fifth heating element 141, the first thermal insulation assembly is arranged on the lower side, and the second thermal insulation assembly is arranged on the upper side. The air duct assembly, the first thermal insulation assembly, the second thermal insulation assembly, and the fifth heating element 141 together enclose and form the second air flow channel.

[0306] Specifically, as shown in Figures 36 and 37, the airway assembly includes an insulation tube 411, which is disposed within the heating channel 107 of the tube body 11 and located between the inner wall of the tube body 11 and the outer wall of the fifth heating element 141. Both the tube body 11 and the insulation tube 411 are silver-plated double-glass insulation tubes with a silver coating on their inner walls, providing excellent thermal insulation, preventing heat loss, and ensuring that the temperature of the hot air in the second airflow channel is sufficiently high. The insulation tube 411 is sleeved on the outside of the fifth heating element 141, and a first gap of 0.5~2mm is provided between the inner wall of the insulation tube 411 and the outer wall of the fifth heating element 141. A tube body 11 is provided outside the insulation tube 411, and a second gap of 0.5~2mm is provided between the inner wall of the tube body 11 and the outer wall of the insulation tube 411. The first air hole 304 is connected with the second gap, and the outside air can be introduced into the second gap. The first gap is connected with the heating chamber 309, and the hot air in the first gap can be conducted to the heating chamber 309 for heating the aerosol generating substance 62 in the cigarette.

[0307] The upper and lower ends of the tube body 11 are tightly connected to the first and second insulation components, respectively. The lower end of the insulation tube 411 is tightly connected to the first insulation component, and a gap is provided between the upper end and the second insulation component, allowing the first gap and the second gap to be connected to each other. The lower end of the fifth heating element 141 is connected to the lower end of the first gap, allowing the cold air entering from the first air hole 304 to enter the heating chamber 309 along the second gap and the first gap in sequence. This ensures that the length of the second air flow channel is long enough to ensure that the cold air is fully heated in the second gap and the first gap, further increasing the air flow temperature of the thermal convection and the heating effect of the thermal convection, thereby further enhancing the uniform heating effect of the aerosol product. In another embodiment, the insulation tube 411 is provided with a through hole or a through groove to connect the first gap and the second gap.

[0308] In another embodiment, only the tube body 11 is provided outside the fifth heating element 141 , and a second air channel is formed between the tube body 11 and the fifth heating element 141 . Cold air can enter the second air channel from the first air hole 304 and then enter the heating chamber 309 .

[0309] In a preferred embodiment, as shown in Figures 36, 43, and 44, the air duct assembly further includes a first guide member 412 and a second guide member 413. The first guide member 412 is helically disposed within the first gap. The outer contour of the first guide member 412 abuts the inner wall of the insulation tube 411 and the outer wall of the fifth heating element 141, respectively, forming a helical first air duct 303 along the insulation tube 411 within the first gap. The second guide member 413 is helically disposed within the second gap. The outer contour of the second guide member 413 abuts the inner wall of the tube body 11 and the outer wall of the insulation tube 411, respectively, forming a helical second air duct 304 along the tube body 11 within the second gap. The first air duct 303 and the second air duct 304 are interconnected to form a second air duct. Both the first air duct 303 and the second air duct 304 are helical, which allows the second air duct to be longer, allowing the cold air to be heated longer within the second air duct, thereby increasing the temperature of the hot air entering the heating chamber 309.

[0310] Preferably, the rotation directions of the first guide member 412 and the second guide member 413 are opposite. As shown in Figures 36, 43 and 44, the first guide member 412 is clockwise and the second guide member 413 is counterclockwise, so that the rotation directions of the first air duct 303 and the second air duct 304 are also opposite. Since the airflow in the first air duct 303 flows from bottom to top and the airflow in the second air duct 304 flows from top to bottom, when the airflow enters the second air duct 304 from the first air duct 303, it has a certain initial velocity. After entering the second air duct 304, it can still flow in the direction of the initial velocity, which can reduce the degree of turbulence of the airflow and make the airflow flow smoother.

[0311] In addition, as shown in Figures 45 and 46, a plurality of first air holes 304 are provided on the lower side of the outer wall of the tube body 11, evenly distributed circumferentially around the centerline of the tube body 11. External cold air can enter the second gap through the first air holes 304. Preferably, the first air holes 304 are arranged at an angle, with the opening direction of each first air hole 304 perpendicular to the radial direction of the tube body 11. This allows air to enter the second air channel 304 from a direction tangential to the inner wall of the tube body 11, thereby forming a spiral airflow. Furthermore, the first air holes 304 are arranged at an angle toward the entrance of the second air channel 304, allowing air to spiral along the second air channel 304 more quickly and smoothly. The number of first air holes 304 on the tube body 11 can be one, and their shapes can be in any direction. As long as cold air can enter the second gap through the first air holes 304, the requirements of this embodiment are met.

[0312] Preferably, as shown in Figures 43 and 44, when the first guide member 412 is inserted into the first gap, the first guide member 412 abuts against the inner wall of the insulation tube 411 and the outer wall of the fifth heating element 141. Similarly, when the second guide member 413 is inserted into the second gap, the second guide member 413 abuts against the outer wall of the tube body 11 and the inner wall of the insulation tube 411. When the cross-section of the first guide member 412 and the second guide member 413 is circular, the contact area of ​​the first guide member 412 and the second guide member 413 is smaller, making it easier to assemble and install. When the cross-section of the first guide member 412 and the second guide member 413 is oval, the contact area of ​​the first guide member 412 and the second guide member 413 is larger, making the first air duct 303 and the second air duct 304 more airtight. The cross-section of the first guide member 412 and the second guide member 413 can also be other shapes, such as rectangular, elliptical, etc.

[0313] Preferably, the first guide member 412 and the second guide member 413 can be made of materials with low thermal conductivity, such as high-temperature resistant plastic, thermal insulation felt, etc., which can reduce the heat conduction from the first guide member 412 to the insulation pipe 411 and the heat conduction from the second guide member 413 to the tube body 11, thereby preventing heat loss of hot air in the first air duct 303 and the second air duct 304.

[0314] In another embodiment, there is no first guide member 412 in the first gap, and no second guide member 413 in the second gap. When the user inhales smoke through the cigarette, hot air flows along the second gap to the first gap, and then flows into the heating chamber 309.

[0315] Specifically, as shown in Figures 36, 37 and 47, the first thermal insulation component includes a first thermal insulation disk 421 and a valve body 422. The first thermal insulation disk 421 is in a circular shape, and a circular first through-hole 305 is provided in the center thereof. The valve body 422 can be inserted into the first through-hole 305 to shield the first through-hole 305. The first through-hole 305 is provided directly below the heating chamber 309. When the valve body 422 is taken out from the first through-hole 305, a cleaning tool can be used to penetrate into the heating chamber 309 to clean the tar and stains in the heating chamber 309, or cleaning liquid can be directly sprayed into the heating chamber 309. Among them, the upper end surface of the first insulation disk 421 is provided with a first annular boss 4211 and a second boss 4212. The first boss 4211 is arranged on the inner side, and the second boss 4212 is arranged on the outer side. An annular groove 306 is formed between the first boss 4211 and the second boss 4212. The insulation tube 411 is embedded in the annular groove 306, and the inner wall of the tube body 11 is tightly attached to the outer wall of the second boss 4212, so that the insulation tube 411 and the tube body 11 are tightly connected to the first insulation component, which can prevent the loss of hot air in the first gap and the second gap.

[0316] As shown in Figures 36, 37, and 48, the second thermal insulation assembly includes a second thermal insulation disc 431, a first sealing member 432, and a first thermal insulation member 433. The second thermal insulation disc 431 is also annular, with a second through-hole 401 defined in its center. The second through-hole 401 is located directly above the heating chamber 309 and communicates with the heating chamber 309, allowing cigarettes to enter the heating chamber 309 through the second through-hole 401. The first sealing member 432 is a sealing ring made of silicone material and is embedded in the second through-hole 401. When a cigarette is inserted into the heating chamber 309, the first sealing member 432 is squeezed and deformed to clamp the cigarette, resulting in an interference fit between the first sealing member 432 and the cigarette, thereby preventing the loss of hot air within the heating chamber 309. A third boss 4311 is provided on the bottom surface of the second thermal insulation disk 431. The third boss 4311 is in a circular ring structure, and its inner diameter is larger than the second through-hole 401. The first thermal insulation member 433 is clamped inside the third boss 4311. The first thermal insulation member 433 made of ceramic serves as a buffer and is embedded between the first sealing member 432 and the fifth heating element 141, which can effectively prevent the first sealing member 432 from being deformed by high temperature. An annular groove is provided at one end of the first thermal insulation member 433 connected to the fifth heating element 141, which can enable the fifth heating element 141 to be embedded in the annular groove, so that the fifth heating element 141 is tightly connected to the first thermal insulation member 433.

[0317] Specifically, as shown in Figures 36, 37, 49 and 50, the rectifying member 44 is arranged at the bottom of the fifth heating element 141, and a accommodating cavity 307 is provided inside the rectifying member 44. A plurality of second air holes 308 are provided on the side wall of the rectifying member 44, and the plurality of second air holes 308 are arranged at equal intervals along the circumference of the rectifying member 44, so that the airflow in the first gap can enter the heating cavity 309 evenly, so that the hot air flow in the accommodating cavity 307 is evenly distributed, and the opening direction of the second air hole 308 points to the center of the accommodating cavity 307. When the cyclonic airflow in the first gap enters the second air hole 308, due to the inclined arrangement of the second air hole 308, the cyclonic airflow can be rectified into a non-cyclonic airflow, so that the airflow entering the heating cavity 309 can enter the inside of the cigarette more evenly and stably, so that the cigarette is heated more evenly.

[0318] Preferably, as shown in Figures 36, 37, 49, and 50, the rectifying member 44 is cylindrical, with a through-hole 307 provided in its center. The rectifying member 44 is composed of three connected parts, namely a first section 441, a second section 442, and a third section 443. The first section 441 is located at the upper end and is in the shape of a stepped hole. The inner diameter of its large hole is equal to or slightly larger than the outer diameter of the fifth heating element 141. The first section 441 can be sleeved on the end of the fifth heating element 141 to connect the heating chamber 309 with the accommodating chamber 307. The third section 443 is located at the bottom of the rectifying member 44 and is embedded in the annular hole of the first boss 4211. The diameter of the middle portion of the third section 443 is equal to the inner diameter of the first through-hole 305, so that the accommodating chamber 307 is connected to the first through-hole 305. The second section 442 is a rectifying section, which is arranged between the first section 441 and the third section 443. A plurality of second air holes 308 are provided on the side wall of the second section 442. The hot air in the first gap can enter the accommodating cavity 307 through the second air holes 308. The second section 442 is trumpet-shaped, and its diameter expands toward the upper side, so that tar and stains can fall along the inner wall of the second section 442 into the third section 443 and the first through-hole 305, preventing tar and stains from entering the second through-hole 401 and flowing into the first gap, and also preventing the cleaning liquid from flowing into the first gap during cleaning.

[0319] Eleventh embodiment

[0320] As shown in FIG51 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the local structure of the fifth heating element 141 is different.

[0321] As shown in Figure 51, the fifth heating element 141 includes an infrared radiation layer 1411 from the inside to the outside, a substrate (the substrate in this embodiment is a ceramic tube 1413), a heating film 1416 and an electrode 14. Since the ceramic tube 1413 itself is not conductive, there is no need to set a second insulating layer 1415 on the outer wall of the ceramic tube 1413. The ceramic tube 1413 is a round tube. In this embodiment, the ceramic tube 1413 preferably adopts an aluminum nitride ceramic tube 1413, a silicon nitride ceramic tube 1413, a silicon carbide ceramic tube 1413, an alumina ceramic tube 1413, etc., which has good thermal conductivity and is conducive to heat conduction to heat the cigarette.

[0322] Twelfth embodiment

[0323] As shown in FIG52 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the local structure of the fifth heating element 141 is different.

[0324] As shown in FIG52 , the fifth heating element 141 includes, from the inside out, a substrate (in this embodiment, the substrate is a transparent glass tube 1414), an infrared radiation layer 1411, a heating film 1416, and an electrode 14. Since the glass tube itself is non-conductive, there is no need to provide a second insulating layer 1415 on the outer wall of the glass tube. In addition, since the surface of the transparent glass tube 1414 is relatively smooth, it is not convenient to directly process the infrared radiation layer 1411 on its inner wall. The outer wall of the transparent glass tube 1414 must first be polished to a frosted state using a polishing tool such as sandpaper, and then the infrared radiation layer 1411 is formed on its outer wall. In this embodiment, the transparent glass tube 1414 is preferably made of a material with high thermal conductivity and high infrared thermal radiation transmittance, such as a quartz tube or a tempered glass tube.

[0325] Thirteenth embodiment

[0326] As shown in FIG53 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the structure of the fifth heating element 141 is different.

[0327] As shown in Figure 53, the first electrode 14a and the second electrode 14b are in the shape of arc-shaped plates, and are arranged on both sides of the heating film 1416 opposite to each other, so that the heating film 1416 is divided into two parts. A arc-shaped plate-shaped protective layer 14c is respectively provided between the first electrode 14a and the second electrode 14b, so that the first electrode 14a, the second electrode 14b and the two protective layers 14c can be enclosed into a cylinder. At this time, the two parts of the heating film 1416 are parallel circuits.

[0328] In some embodiments, there may be more than two protective layers 14c, and the plurality of protective layers 14c are connected, spliced, and disposed between the first electrode 14a and the second electrode 14b.

[0329] Fourteenth embodiment

[0330] As shown in Figures 41, 42, 54 and 55, the present invention also provides an aerosol product, which can be inserted into the heating chamber 309 of the heat-not-burn smoking device of the above embodiment. The aerosol product can be a cigarette 60 or a cigar or other consumables containing aerosol-generating substances.

[0331] As shown in Figures 41 and 42, the cigarette 60 includes a first packaging layer 61, an aerosol generating substance 62, a filter 63, a buffer 64 and a second packaging layer 65. The first packaging layer 61 is coated on the outside of the aerosol generating substance 62, and the second packaging layer 65 is coated on the outside of the filter 63 and the buffer 64, and is connected to the first packaging layer 61. The aerosol generating substance 62 can be a tobacco material, which can generate aerosol-like smoke after being heated. The filter 63 is a filter tip, which can be made of a porous fiber material. In this embodiment, acetate fiber is preferably used, which can effectively reduce the amount of tar inhaled. The buffer member 64 is arranged between the aerosol generating substance 62 and the filter member 63, and a cooling cavity is provided through the middle thereof. When the cigarette is fully inserted into the heating cavity 309, a part of the buffer member 64 is located in the heating cavity 309, and the other part protrudes outside the first accommodating cavity, and can only receive a small amount of heat from the fifth heating element 141. In addition, the buffer member 64 has a thin-walled structure and good heat dissipation performance. The high-temperature smoke can be cooled in the cooling cavity to prevent the smoke from burning the mouth.

[0332] In another embodiment, the aerosol generating substance 62 is directly connected to the filter element 63 , and the smoke generated by the aerosol generating substance 62 after being heated is directly filtered by the filter element 63 .

[0333] The first packaging layer 61 is made of infrared-transmissive glass or transparent plastic, such as polytetrafluoroethylene, polypropylene, high-density polyethylene, or polymethyl methacrylate. These materials have excellent thermal conductivity and can transfer the heat generated by the fifth heating element 141 to the internal aerosol-generating substance 62. Furthermore, the first packaging layer 61 is made of a transparent material with strong infrared penetration, which facilitates heating of the internal aerosol-generating substance 62 and achieves uniform heating.

[0334] In a preferred embodiment, as shown in Figures 41 and 42, an air guide 024 is embedded within the aerosol-generating substance 62. Air guide 024 is tubular and, in this embodiment, preferably utilizes a quartz capillary tube, which exhibits excellent thermal stability and resists deformation, facilitating the entry of hot air into the aerosol-generating substance 62 at high temperatures. Typically, hot air diffuses gradually from the bottom of a cigarette into the interior of the cigarette. Air guide 024 directly directs a portion of the hot air into the interior of the aerosol-generating substance 62, allowing the interior and ends of the aerosol-generating substance 62 to be heated simultaneously, achieving uniform heating.

[0335] The length of the air guide 024 can be 0.3 to 0.7 times the length of the aerosol-generating material 62. This allows the hot air within the accommodating cavity 307 to reach the interior of the aerosol-generating material 62, heating both the interior and the ends of the aerosol-generating material 62 simultaneously, achieving uniform heating. Preferably, the air guide 024 is 0.5 times the length of the aerosol-generating material 62, with its ends aligned flush with the ends of the aerosol-generating material 62. This allows the hot air flow to be precisely directed to the center of the aerosol-generating material 62, allowing the hot air flow to diffuse evenly within the aerosol-generating material 62, resulting in even more uniform heating. In some embodiments, the ends of the air guide 024 can also extend beyond the ends of the aerosol-generating material 62.

[0336] The cigarette 60 of this embodiment is combined with a heat-not-burn smoking device to realize three heating methods: comprehensive heat transfer, heat radiation and heat convection, which can heat the aerosol-generating substance 62 more evenly and effectively solve the problem of slow aerosol release from the aerosol-generating substance 62.

[0337] Fifteenth embodiment

[0338] 56 to 63 , the heat-not-burn smoking device of this embodiment has substantially the same structure as the heat-not-burn smoking device of the above-mentioned embodiment, except that the heat-not-burn smoking device of this embodiment further includes a third heat-insulating component, and the heating component includes a sixth heating element 142 .

[0339] As shown in Figure 57, in this embodiment, a plurality of through holes 403 connected to the heating channel 107 are opened on the side wall of the tube body 11, and the sixth heating element 142 is sleeved on the outside of the tube body 11. The sixth heating element 142 is made of carbon material and can generate heat when powered on to heat the aerosol generated in the heating channel 107, such as a cigarette.

[0340] As shown in FIG. 57 , the third thermal insulation component is sleeved on the outside of the heating component, and the third thermal insulation component and the sixth heating element 142 are enclosed to form a closed space 402 .

[0341] In this embodiment, when the sixth heating element 142 is energized, it performs contact heating on the tube body 11. After the tube body 11 is heated, it then performs contact heating on the cigarette placed in the heating channel 107. Simultaneously, the sixth heating element 142 can also heat the air between the sixth heating element 142 and the tube body 11. The heated air forms a hot air flow that passes through the through hole 403 and performs airflow heating on the cigarette placed in the heating channel 107. Furthermore, in this embodiment, the sixth heating element 142 is preferably made of carbon material, so the sixth heating element 142 can also perform radiation heating on the cigarette placed in the heating channel 107. By simultaneously heating the cigarette placed in the heating channel 107 through the three heating methods of contact heating, airflow heating, and radiation heating, the heating effect of the heat-not-burn smoking device that uses carbon material to circumferentially heat the cigarette can be effectively enhanced.

[0342] At the same time, because the sixth heating element 142 is made of carbon material in this embodiment and is arranged outside the tube body 11, it can avoid the problem that when the carbon material is arranged in the heating channel 107 inside the tube body 11, the carbon material is frequently scratched by the cigarettes in the heating channel 107 and easily falls off.

[0343] In addition, by providing a third heat insulation component and enclosing the sixth heating element 142 to form a closed space 402, the heat generated by the sixth heating element 142 can be effectively prevented from being lost to the periphery, thereby saving energy consumption of the smoking device and improving heat transfer efficiency.

[0344] Among them, the carbon material is preferably graphite, carbon fiber, carbon black, graphene, carbon whiskers and the like.

[0345] Specifically, the heat-not-burn smoking device of the present invention is mainly used to heat and atomize aerosol products, where aerosol products mainly refer to materials that can be atomized into tiny particles after heating and act on the oropharynx, airway and lungs after being inhaled by people, including tobacco materials such as shredded tobacco and cigarettes, herbal materials, medicinal materials or other materials that can be heated to generate aerosols.

[0346] As an embodiment, as shown in Figure 57, the lower tube section 112 of the tube body 11 is arranged at the bottom of the upper tube section 111, the sixth heating element 142 is arranged on the outer peripheral surface of the upper tube section 111, and heats the cigarette placed inside the upper tube section 111 when power is turned on. The inner diameter of the lower tube section 112 is smaller than the inner diameter of the upper tube section 111, and the lower tube section 112 is used to allow gas to enter the interior of the upper tube section 111.

[0347] Specifically, by setting the inner diameter of the lower tube section 112 smaller than that of the upper tube section 111, when a cigarette is inserted into the upper tube section 111, a surface is formed between the lower tube section 112 and the upper tube section 111 due to the smaller inner diameter of the lower tube section 112, restricting the cigarette from entering the lower tube section 112. Furthermore, the sixth heating element 142 is disposed on the outer circumference of the upper tube section 111, confining the cigarette within the upper tube section 111 and ensuring that the cigarette is in an optimal heating position. Furthermore, because the inner diameter of the upper tube section 111 is larger than that of the lower tube section 112, air is facilitated from the lower tube section 112 into the interior of the upper tube section 111.

[0348] Furthermore, as an embodiment, as shown in Figures 57, 64 and 65, the lower cover 323 of the outer shell 32 is provided with an air inlet 101, and the air inlet 101 is connected to the heating channel 107. The air outside the heat-not-burn tobacco device can enter the interior of the tube body 11 through the air inlet 101, and carry the smoke generated inside the tube body 11 out of the heat-not-burn tobacco device; wherein, the air inlet 101 includes a plurality of through holes, and the plurality of through holes are provided at the bottom of the heat-not-burn tobacco device, and are distributed in concentric circles around the central axis of the tube body 11.

[0349] Specifically, the air inlet 101 is located at the bottom of the heat-not-burn smoking device and comprises a plurality of holes arranged concentrically around the central axis of the tube body 11. This arrangement allows air to enter the tube body 11 more evenly through the air inlet 101, thereby carrying the smoke generated within the tube body 11 out of the heat-not-burn smoking device. The holes are preferably arranged in a circular or square shape. In other embodiments, arrangements such as a dotted pattern can also be considered to ensure a more even distribution of air entering the air inlet 101.

[0350] As shown in Figure 57, an electrode plate 45 is installed within the housing 32. The electrode plate 45, power supply 15, tube body 11, and third thermal insulation assembly are installed within the housing 32. The upper cover 322 of the housing 32 is provided with an air outlet 102, which provides air for exhaust and allows cigarettes to be placed into the heating channel 107. The lower cover 323 is provided with a support member 3231 for supporting the third thermal insulation assembly and the heating assembly. A wire 47 connects the power supply 15, electrode plate 45, and sixth heating element 142 to energize the sixth heating element 142.

[0351] The outer shell 32 is preferably made of plastic such as ABS or ceramics to provide better heat insulation and prevent the exterior of the heat-not-burn smoking device from being scalded.

[0352] Specifically, in this embodiment, the power supply 15 supplies power and energizes the sixth heating element 142 through the electrode plate 45 and the wire 47. After the sixth heating element 142 is energized, it heats the upper tube section 111 of the tube body 11. The upper tube section 111 directly contacts and heats the cigarettes in the heating channel 107. At the same time, the sixth heating element 142 heats the air between the sixth heating element 142 and the upper tube section 111 to perform airflow heating on the cigarettes in the heating channel 107. Moreover, the sixth heating element 142 can generate heat radiation due to the use of carbon material to perform radiation heating on the cigarettes in the heating channel 107. After being heated, the cigarettes in the heating channel 107 generate smoke. At the same time, air enters the lower tube section 112 of the tube body 11 from the bottom along the air inlet 101. After entering the lower tube section 112, the air passes through the lower tube section 112 and rises to the upper tube section 111. Then, it carries the smoke generated in the upper tube section 111 and rises, and finally flows out from the air outlet 102.

[0353] Among them, the tube body 11 is preferably a tube made of transparent material such as a glass tube or a quartz tube, so that the radiation generated by the carbon material and transmitted to the periphery can be reflected and then pass through the tube body 11 to radiantly heat the cigarette in the heating channel 107.

[0354] As an embodiment, as shown in FIG. 57 , FIG. 62 and FIG. 63 , a plurality of through holes 403 are evenly spaced along the outer circumference of the tube body 11 and are evenly spaced along the axial direction of the tube body 11 .

[0355] Specifically, in this embodiment, by arranging multiple through holes 403 to be evenly distributed along the outer circumference of the tube body 11 and evenly distributed along the axial direction of the tube body 11, it is beneficial for the hot air flow to evenly pass through the through holes 403 into the heating channel 107 inside the tube body 11, thereby achieving uniform heating of the cigarettes inside the heating channel 107.

[0356] As an embodiment, the sixth heating element 142 and the tube body 11 are spaced apart to form a heating cavity, and the heating cavity is connected to the through hole 403 .

[0357] Specifically, in this embodiment, the sixth heating element 142 and the tube body 11 are spaced apart so that a heating chamber is formed between the sixth heating element 142 and the tube body 11, and the heating chamber is connected to the through hole 403, so that air can enter the heating chamber through the through hole 403 and be surrounded and heated by the sixth heating element 142, thereby enhancing the heating effect on the air, and further enhancing the airflow heating effect on the cigarette after the air forms a hot air flow and enters the heating channel 107 through the through hole 403.

[0358] Furthermore, a spiral structure is provided in the heating chamber, and the spiral structure divides the heating chamber into spiral guide channels.

[0359] Specifically, by setting a spiral structure in the heating chamber to divide the heating chamber into a spiral guide channel, the spiral guide channel can prolong the time that air circulates in the heating chamber, thereby enhancing the effect of air heating, and further enhancing the heating effect of the air on the cigarette in the heating channel 107 after the air is heated.

[0360] In addition, in this embodiment, the spiral structure also acts as a heat conductor to transfer heat to the air, further enhancing the heating effect on the air. The spiral structure and the sixth heating element 142 are preferably provided as one piece.

[0361] As an embodiment, as shown in FIG. 57 , the sixth heating element 142 is carbon-coated and covers the outer wall of the tube body 11 .

[0362] Specifically, in this embodiment, the sixth heating element 142 is a carbon coating, which is applied to the outer wall of the tube body 11. This coating prevents the carbon coating from easily falling off when applied to the inner wall of the tube body 11 due to frequent insertion of cigarettes. Furthermore, the carbon coating generates heat radiation, enhancing the heating effect and resolving the issue of insufficient heating resulting from the carbon coating being applied to the outer wall of the tube body 11.

[0363] The carbon coating is a coating made of carbon material, or a coating made of a mixture of carbon material and metal alloy, such as graphite alloy. Specifically, the carbon coating is preferably coated on the side wall of the tube body 11 by a spraying process.

[0364] In one embodiment, the heat-not-burn smoking article further includes a second reflective layer 48 , which is disposed outside the third heat insulation component.

[0365] Specifically, in this embodiment, as shown in FIG57 , the second reflective layer 48 covers the inner sidewall of the third thermal insulation assembly. In other embodiments, the second reflective layer 48 may also cover the inner sidewall of the third thermal insulation assembly. By positioning the second reflective layer 48 outside the third thermal insulation assembly, radiation emitted from the sixth heating element 142 , which is preferably made of a carbon material, can be reflected back toward the cigarettes in the heating channel 107 , thereby heating the cigarettes in the heating channel 107 , further reducing heat loss and enhancing the heating effect on the cigarettes in the heating channel 107 .

[0366] The second reflective layer 48 is preferably a thin film or coating made of aluminum or silver.

[0367] In one embodiment, as shown in Figures 66 and 67, the third thermal insulation assembly includes a second thermal insulation member 461 and a second sealing member 462. The second sealing member 462 is arranged between the second thermal insulation member 461 and the tube body 11. The second thermal insulation member 461, the second sealing member 462 and the sixth heating element 142 enclose a closed space 402.

[0368] Specifically, in this embodiment, the third thermal insulation assembly is not integrally provided, but includes a second thermal insulation member 461 and a second sealing member 462, and the second thermal insulation member 461, the second sealing member 462, and the sixth heating element 142 are enclosed to form a closed space 402. The third thermal insulation assembly is divided into the second thermal insulation member 461 and the second sealing member 462 to facilitate assembly and disassembly of the third thermal insulation assembly. At the same time, as shown in Figures 66 and 67, a notch 321 can be provided outside the second sealing member 462 for the wire 47 to pass through, so that the wire 47 connects the sixth heating element 142 to the power source 15.

[0369] The second thermal insulation member 461 is preferably made of a transparent material such as glass or quartz, so as to facilitate the provision of the second reflective layer 48 to reflect the radiation generated by the carbon material sixth heating element 142. The second sealing member 462 is preferably made of a material with good sealing and thermal insulation properties such as silicone, fluororubber, PEK, or ceramic.

[0370] Furthermore, as shown in Figures 57 and 58, the third thermal insulation assembly also includes a thermal insulation kit 463, which is mounted on the outside of the second thermal insulation component 461.

[0371] Specifically, in this embodiment, by sleeve-mounting the thermal insulation kit 463 on the outside of the second thermal insulation component 461, the thermal insulation effect of the heat-not-burn smoking device can be further enhanced, heat loss can be reduced, and the outside of the heat-not-burn smoking device can be prevented from being hot.

[0372] The insulation kit 463 is preferably made of aluminum silicate insulation wool, rock wool, mica, or a vacuum tube. In this embodiment, the insulation kit 463 is cylindrical and preferably has a plurality of sequentially connected diamond-shaped protrusions disposed on its outer surface, with the plurality of diamond-shaped protrusions spaced axially along the insulation kit 463 as a molding pattern.

[0373] The heat-not-burn smoking device provided by the present invention, by arranging the sixth heating element 142 made of carbon material outside the tube body 11, can avoid the problem of the carbon material being easily detached due to frequent scratches by cigarettes when it is arranged inside the tube body 11. The sixth heating element 142 electrically heats the tube body 11, and after the tube body 11 is heated, it can contact-heat the cigarettes in the heating channel 107. In addition, the tube body 11 is provided with a plurality of through holes 403 connected to the heating channel 107. Therefore, after the sixth heating element 142 heats the air between the sixth heating element 142 and the tube body 11, the air can pass through the through holes 403 into the heating channel 107 to heat the cigarettes therein. At the same time, because the sixth heating element 142 is made of carbon material, the sixth heating element 142 can also radiate heat to the cigarettes in the heating channel 107. Therefore, the heat-not-burn smoking device provided by the present invention can simultaneously heat cigarettes placed within the heating channel 107 through three heating methods: contact heating by the tube body 11, airflow heating by the sixth heating element 142 heating the air to form a hot air flow, and radiant heating generated by the use of carbon material as the sixth heating element 142, effectively enhancing the heating effect of the heat-not-burn smoking device on the cigarettes. In addition, the provision of the third thermal insulation component and the sixth heating element 142 to form an enclosed space 402 can effectively prevent the heat generated by the sixth heating element 142 from escaping to the periphery, thereby saving energy consumption of the heat-not-burn smoking device and improving heat transfer efficiency.

[0374] In summary, the smoking device provided by the present invention can realize the arrangement of the sixth heating element 142 made of carbon material outside the tube body 11 to avoid the problem of easy falling off of the carbon material, while enhancing the heating effect of the heat-not-burn smoking device using carbon material to perform circumferential heating on the cigarette, and saving the energy consumption of the heat-not-burn smoking device and improving the heat transfer efficiency.

[0375] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application. Industrial Applicability

[0376] The heat-not-burn smoking device of the present invention contains aerosol-generating substances through a heating channel within the tube body. A heating element heats the air in the heating channel, thereby generating smoke from the aerosol-generating substances for inhalation. The heat-not-burn smoking device of the present invention has high heating efficiency, a simple structure, and low production costs.

Claims

1. A heat-not-burn smoking device, characterized in that: It includes a tube body and a heating component. The tube body is provided with a heating channel, the heating channel is used to accommodate aerosol products, the heating component is arranged corresponding to the tube body, and the heating component is used to heat the aerosol products in the heating channel.

2. The heat-not-burn smoking device according to claim 1, wherein: The heat-not-burn smoking device also includes an air-guiding layer, and the tube body includes an upper tube section and a lower tube section. The air-guiding layer is arranged in the tube body, the upper tube section is located above the air-guiding layer, and the lower tube section is located below the air-guiding layer; air-guiding holes are provided on the air-guiding layer; the upper tube section is used to place the aerosol product.

3. The heat-not-burn smoking device according to claim 2, wherein: The heating component is arranged in the lower tube section; the heating component includes a first heating element, a second heating element and a heat-conducting pipe, the heat-conducting pipe is arranged in the middle position of the lower tube section, the first heating element is arranged on the outer wall of the heat-conducting pipe, and a heat-conducting channel is provided in the heat-conducting pipe; the second heating element is arranged on the outer side of the lower tube section, and a gap is provided between the first heating element and the second heating element.

4. The heat-not-burn smoking device according to claim 3, wherein: A heat conducting plate is provided on the outer wall of the heat conducting tube, and a heat conducting hole is provided on the heat conducting plate. The first heating element is spirally wound on the outer wall of the heat conducting tube, and the second heating element is arranged on the outside of the first heating element with the heat conducting tube as the central axis; the heat conducting hole is located between the first heating element and the second heating element, or the heat conducting hole is located above the gap between the first heating element and the second heating element.

5. The heat-not-burn smoking device according to claim 3, wherein: The upper end of the heat-conducting pipe is arranged through the air-conducting layer, and the heat-conducting channel is used to transport the formed hot air flow to the upper pipe section.

6. The heat-not-burn smoking device according to claim 2, wherein: The heat-not-burn smoking device also includes an airflow generating device and a power supply; the power supply is used to power the heating component and the airflow generating device; an air inlet and an air outlet are provided on the tube body, the air inlet is arranged on the lower tube section, and the air outlet is arranged on the upper tube section; the heating component also includes a third heating element, the third heating element and the airflow generating device are arranged in the lower tube section, and the airflow generating device is used to form an airflow from the air heated by the third heating element.

7. The heat-not-burn smoking device according to claim 6, wherein: The heat-not-burn smoking device further comprises at least one of the following features: The third heating element is tubular; The side wall of the third heating element is provided with a heating hole; The third heating element is in the shape of a long strip, and the third heating element is bent to form a plurality of folded portions; The third heating element is in the shape of a long strip and is spirally arranged; The third heating element includes at least one heating net; A first insulating layer is further provided between the air guide layer and the third heating element, and an insulating through hole is provided on the first insulating layer; A second heat insulation layer is also provided on the inner wall of the lower pipe section; The third heating element is attached to the inner wall of the lower pipe section; A second radiation layer is also provided on the side wall of the lower pipe section.

8. The heat-not-burn smoking device according to claim 6, wherein: The third heating element includes at least one heating tray and a plurality of heating columns. The heating columns are fixedly connected to the heating tray, and the heating tray is provided with heating holes.

9. The heat-not-burn smoking device according to claim 2, wherein: The air guide layer divides the heating channel into a first channel and a second channel, and air flows from the second channel to the first channel; a first heat conductor is provided in the first channel, and the bottom of the first heat conductor is fixed in the air guide layer; The heating component is located in the second channel; a heating coil is provided in the tube body, and the heating coil is provided on a side of the first channel away from the air guide layer.

10. The heat-not-burn smoking device according to claim 9, wherein: The heating component includes a second heat conductor and a heating wire; the second heat conductor is installed in the first channel, and the heating wire is spirally wound on the outer wall of the second heat conductor.

11. The heat-not-burn smoking device according to claim 10, wherein: The second heat conductor includes a heating plate and an annular tube; the annular tube is fixed in the second channel, the heating plate is arranged on one end of the annular tube, and the heating plate is located below the air guide layer, and the heating plate is provided with a plurality of guide holes for air to pass through.

12. The heat-not-burn smoking device according to claim 11, wherein: A connecting groove is spirally provided on the outer side wall of the annular tube, and the heating wire is installed in the connecting groove.

13. The heat-not-burn smoking device according to claim 10, wherein: The heat-not-burn smoking device further comprises at least one of the following features: The first heat conductor and the second heat conductor are both provided with through holes passing through both ends along the center line direction, and the through holes of the first heat conductor correspond to the through holes of the second heat conductor; The second channel is provided with a first thermal insulation tube and a third thermal insulation layer, both of which are annular. The third thermal insulation layer is provided around the inner wall of the tube body, and the first thermal insulation tube is installed in the inner wall of the third thermal insulation layer. The first channel is provided with a radiation ring for concentrating heat on the aerosol product, and the radiation ring is provided on a side of the first channel close to the air guide layer.

14. The heat-not-burn smoking device according to claim 2, wherein: The heat-not-burn smoking device further includes a second heat-insulating tube, the heating component and the air-conducting layer are disposed within the second heat-insulating tube, the air-conducting layer is disposed above the heating component, the air-conducting layer is provided with air-conducting holes, a heating channel is disposed above the air-conducting layer, and the heating channel is located above the heating component; The heating component includes an air flow duct and a fourth heating element. The fourth heating element is spirally wound on the outer wall of the air flow duct. A gap is provided between the fourth heating element and the second thermal insulation tube. The air flow duct is arranged in the middle position below the heating channel, and one end of the air flow duct passes through the air guide layer and is arranged in the heating channel.

15. The heat-not-burn smoking device according to claim 14, wherein: The heat-not-burn smoking device further comprises at least one of the following features: The outer wall of the airflow duct is provided with a spiral protrusion, the spiral protrusion is spirally arranged to form a spirally ascending airflow channel, and the airflow channel is connected to the heating channel; the minimum outer diameter of the spiral protrusion is greater than the maximum outer diameter of the fourth heating element; The airflow duct further comprises an air pipe, which is arranged at the end of the airflow duct and located in the heating channel. The air pipe has a tip portion, which extends into the heating channel. The air guide layer is provided with a first heat-conducting layer on a side away from the heat-generating component, and a heat-conducting and wear-resistant layer is provided on the first heat-conducting layer; A second heat-conducting layer is provided on the inner wall of the heating channel, and a fourth heat-insulating layer is provided between the heating channel and the second heat-conducting layer.

16. The heat-not-burn smoking device according to claim 1, wherein: The aerosol generator comprises a first packaging layer that is permeable to infrared rays and an aerosol generating substance installed in the first packaging layer; the heating component further comprises a fifth heating element, the fifth heating element being installed in the heating channel and being electrically connected to generate heat radiation; the fifth heating element being in the shape of a hollow tube and having a heating cavity therein extending therethrough, the heating cavity being in communication with the heating channel, one end of the heating cavity being an inlet end, and the aerosol generator being able to enter the heating cavity through the inlet end; A first air hole is provided on the tube body, and a second air flow channel is formed between the tube body and the fifth heating element. The second air flow channel surrounds the fifth heating element so that the fifth heating element can simultaneously heat the aerosol product in the heating chamber and the air flow in the second air flow channel. One end of the second air flow channel is connected to the heating chamber, and the other end is connected to the first air hole. The air flow can flow through the first air hole into the second air flow channel and enter the heating chamber after being heated by the fifth heating element.

17. The heat-not-burn smoking device according to claim 16, wherein: The fifth heating element includes an infrared radiation layer, a heating film and a base. The base is in a hollow tubular shape. The heating film is used to generate thermal radiation when connected to electricity. The infrared radiation layer is arranged on the inner wall or outer wall of the base. The infrared radiation layer can absorb the thermal radiation generated by the heating film and convert it into infrared rays that can pass through the first packaging layer.

18. The heat-not-burn smoking device according to claim 17, wherein: The fifth heating element includes, from inside to outside, the infrared radiation layer, the substrate, the second insulating layer, the heating film and the electrode, wherein the substrate is a metal tube; Alternatively, the fifth heating element includes, from inside to outside, the infrared radiation layer, the substrate, the heating film, and the electrode, and the substrate is a ceramic tube; Alternatively, the fifth heating element includes, from inside to outside, the substrate, the infrared radiation layer, the heating film, and the electrode, and the substrate is a transparent glass tube; The heating film is electrically connected to the electrode and can generate heat radiation when electrically connected.

19. The heat-not-burn smoking article according to claim 16, wherein: The heat-not-burn smoking device comprises: An air duct component, wherein the fifth heating element is disposed in the air duct component; a first heat insulation component, the first heat insulation component being arranged on a side of the air duct component away from the outlet end and connected to the air duct component; The second thermal insulation component is arranged on the side of the air duct component close to the inlet end and is connected to the air duct component. The air duct component and the first thermal insulation component, the second thermal insulation component and the fifth heating element together enclose the second air flow channel.

20. The heat-not-burn smoking article according to claim 19, wherein: The airway assembly comprises: a heat preservation pipe, the heat preservation pipe being in a hollow tubular shape and being sleeved on the fifth heating body, with a first gap being formed between the heat preservation pipe and the fifth heating body; The tube body is sleeved outside the insulation tube, a second gap is formed between the tube body and the insulation tube, and the first air hole is connected to the second gap; The first gap is connected to the second gap to form the second air flow channel.

21. The heat-not-burn smoking article according to claim 20, wherein: The first air hole is arranged on the side of the tube body away from the inlet end, the first gap is connected to the second gap on the side of the insulation tube close to the inlet end, and the second gap is connected to the heating chamber on the side of the insulation tube away from the inlet end.

22. The heat-not-burn smoking article according to claim 20, wherein: The airway assembly further includes a first guide member and a second guide member, wherein the first guide member is disposed in the first gap, and the second guide member is disposed in the second gap, and both the first guide member and the second guide member are spiral-shaped; The first guide member abuts against the inner wall of the insulation tube and the outer wall of the fifth heating element to form a spiral first air passage; the second guide member abuts against the inner wall of the shell assembly and the outer wall of the first insulation sleeve to form a spiral second air passage; The first air channel and the second air channel are connected to each other and form the second air flow channel.

23. The heat-not-burn smoking article according to claim 19, wherein: The first thermal insulation component comprises: a first heat-insulating plate, wherein the first heat-insulating plate is provided with a first through-hole, and the first through-hole is in communication with the heating chamber; A valve body can be embedded in the first through-hole, and the valve body is used to cover the first through-hole.

24. The heat-not-burn smoking article according to claim 19, wherein: The second thermal insulation assembly comprises: a second heat-insulating plate, the second heat-insulating plate being provided with a second through-hole, the second through-hole being in communication with the inlet end; a first sealing member, the first sealing member being annular and embedded in the second through-hole; a first heat insulating member, the first heat insulating member being annular and embedded in the second through-hole, and the first heat insulating member being disposed between the first sealing member and the fifth heating element; When the aerosol generator is inserted into the heating chamber, the first sealing member can be interference-fitted with the aerosol generator.

25. The heat-not-burn smoking article according to claim 1, wherein: The heating assembly includes a sixth heating element, a plurality of through holes communicating with the heating channel are opened on the side wall of the tube body, and the sixth heating element is sleeved on the outside of the tube body; The heat-not-burn smoking device further includes a third heat-insulating component, which is sleeved on the outside of the sixth heating element. The third heat-insulating component and the sixth heating element are enclosed to form a closed space.

26. The heat-not-burn smoking article according to claim 25, wherein: The heat-not-burn smoking device further comprises at least one of the following features: The plurality of through holes are evenly spaced along the outer circumference of the tube body and are evenly spaced along the axial direction of the tube body; The sixth heating element and the tube body are spaced apart to form a heating cavity, and the heating cavity is communicated with the through hole; The sixth heating element is a carbon coating and covers the outer wall of the tube; The heat-not-burn smoking article further includes a second reflective layer, which is disposed outside the third heat-insulating assembly; The third heat insulation assembly includes a second heat insulation member and a second sealing member, wherein the second sealing member is provided between the second heat insulation member and the tube body, and the second heat insulation member, the second sealing member and the sixth heating element enclose the enclosed space; The tube body includes an upper tube section and a lower tube section, the lower tube section is arranged at the bottom of the upper tube section, the sixth heating element is arranged on the outer peripheral surface of the upper tube section, and heats the aerosol generated inside the upper tube section when powered on, the inner diameter of the lower tube section is smaller than that of the upper tube section, and the lower tube section is used to allow gas to enter the interior of the upper tube section; The heat-not-burn smoking device also includes an air inlet, which is connected to the heating channel. Air outside the heat-not-burn smoking device can enter the heating channel through the air inlet, and carry the smoke generated by the heating channel out of the heat-not-burn smoking device; wherein, the air inlet includes a plurality of through holes, and the plurality of through holes are arranged at the bottom of the heat-not-burn smoking device and are distributed in concentric circles around the central axis of the tube body.

27. An aerosol product, characterized in that: The aerosol generated can be used in conjunction with the heat-not-burn smoking device according to any one of claims 1 to 26, and the aerosol generated comprises: a first packaging layer, wherein the first packaging layer is made of a material that is transparent to infrared rays; an aerosol-generating substance disposed in the first packaging layer and capable of being heated to generate an aerosol medium; When the aerosol generator is inserted into the heating channel, the outer wall of the first packaging layer can abut against the cavity wall of the heating channel.

28. The aerosol product according to claim 27, wherein The aerosol generator also includes: filter element; a buffer member, the buffer member being disposed between the filter member and the aerosol generating substance and connected to both, the buffer member having a cooling cavity extending therethrough in the middle thereof; a second packaging layer, the second packaging layer covering the filter element and the buffer element and connected to the first packaging layer; When the aerosol generator is inserted into the heating chamber, a portion of the cooling chamber can be located inside the heating chamber, and another portion protrudes outside the heating chamber.

29. The aerosol product according to claim 27, wherein: An air guide is embedded in the aerosol generating substance. The air guide is tubular, one end of which is inserted into the aerosol generating substance and the other end of which is flush with the end of the aerosol generating substance or extends outside the end; When the aerosol generating material is inserted into the heating channel, the air guide can be in communication with the heating channel and guide the airflow of the heating channel into the aerosol generating material.

30. The aerosol product according to claim 29, wherein: The length of the air guide is 0.3 to 0.7 times the length of the aerosol generating substance.

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