Heating smoking set

Abstract

The utility model belongs to the technical field of electric smoking devices, and particularly provides a heating smoking set. The heating smoking set comprises a heat insulation part and an external heating element, the heat insulation part is arranged on the outer side of the external heating element, an interval is formed between the heat insulation part and the external heating element, an air cavity is formed in the space corresponding to the interval and provided with an air inlet communicated with external air, and a supporting part is further arranged on the inner side of the heat insulation part and provided with a communicating air channel communicated with the air cavity. A first heat transfer cylinder tightly attached to the outer heating element is arranged on the inner side of the outer heating element, an inner cavity of the first heat transfer cylinder forms a containing cavity allowing one end of a cigarette to be inserted, and a second heat transfer cylinder tightly attached to the outer heating element is arranged on the outer side of the outer heating element. When the heating smoking set is used, under the action of the first heat transfer cylinder and the second heat transfer cylinder, the heating element is prevented from being in direct contact with a cigarette, and overheated air cannot enter the cigarette, so that the stability of opening-by-opening release of chemical components can be improved, and the slow release effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric smoking devices, in particular to a heating smoking device. Background Art

[0002] Heated cigarettes refer to cigarettes that directly heat the tobacco core through a heating device, so that the tobacco core undergoes processes such as pyrolysis, distillation and condensation to produce aerosol for consumers to smoke. Heated cigarettes do not undergo combustion during the smoking process, and produce fewer harmful components than traditional cigarettes during the smoking process.

[0003] Heated cigarettes include a tobacco material section, a cooling section and a filter section. The heated smoking device is provided with a accommodating cavity. When smoking, the cigarette is inserted into the accommodating cavity and heated in the accommodating cavity. At present, heated smoking devices usually use a single heating method to heat the cigarette core, and commonly used methods include external heating methods. The external heating method refers to setting the heating element on the circumferential periphery of the accommodating cavity, and heating the cigarette core from the periphery of the tobacco material section to the inside. For the external heating method, in the early stage of smoking, the temperature of the outer layer of the cigarette is higher, the temperature of the inner layer is lower, and the temperature inside and outside is uneven. Moreover, the outer layer of the cigarette has more tobacco material, which can easily cause the chemical components in the tobacco material to be completely released in the early stage of smoking, the puff-by-puff release stability is insufficient, and the sustained release effect is poor, which affects the consumer's smoking experience.

[0004] The patent application with application publication number CN116965597A discloses an induction heating aerosol generating device, i.e., a heating smoking device, which includes a bracket (equivalent to the outer layer of the heat insulating member), an induction coil is wound around the outer periphery of the bracket, an induction heating body is fixed inside the bracket, and the induction heating body is a cylindrical structure. The cavity inside the induction heating body forms a receiving cavity for accommodating heated cigarettes, and the inner peripheral surface of the induction heating body is used to directly contact the outer surface of the heated cigarette. In the radial direction, the induction heating body and the inner peripheral surface of the bracket are provided with a cavity, which forms an air cavity (equivalent to an airflow channel) connected to the outside air. The bottom of the bracket is provided with a bracket airflow channel (equivalent to a connecting airway) connected to the air cavity. When consumers smoke cigarettes, the outside air can enter the air cavity, enter the heated cigarette through the bracket airflow channel, and bring out the smoke generated by the heated cigarette.

[0005] Analyzing the above-mentioned heating smoking device, it can be seen that the heating element that actually plays a heating role in the heating smoking device is a cylindrical induction heating body. When in use by suction, the inner wall of the induction heating body is in direct contact with the cigarette, which easily causes the temperature of the outer layer of the cigarette to be too high, resulting in the complete release of the chemical components in the tobacco material in the early stage of suction and unstable release per puff. In addition, the outer wall of the induction heating body constitutes the wall of the air chamber. After the outside air enters the air chamber, the induction heating body can also heat the air. The heated air can directly enter the inside of the heated cigarette to achieve direct heating of the inside of the heated cigarette and improve the problem of uneven internal and external temperatures. However, the direct contact between the air and the induction heating body easily causes the air temperature to be too high. In this way, after the hot air enters the inside of the cigarette, it is also easy to cause the complete release of the chemical components in the tobacco material in the early stage of suction and unstable release per puff. Summary of the Invention

[0006] The purpose of the present invention is to provide a heating smoking device to solve the technical problems of insufficient stability of per puff release and slow release effect when the existing heating smoking device is in use.

[0007] To achieve the above purpose, the technical solution of the heating smoking device provided by the present invention is:

[0008] A heating smoking device includes a heat insulation member and an external heating element. The heat insulation member is provided outside the external heating element and there is a gap between the two. The space corresponding to the gap forms an air chamber. The air chamber is provided with an air inlet hole communicating with the outside air. A support member is also provided inside the heat insulation member. The support member has a support surface for supporting the cigarette. The support member is also provided with a communication air passage that penetrates the support surface and communicates with the air chamber. A first heat transfer cylinder is provided inside the external heating element and is in close contact with the external heating element. The inner cavity of the first heat transfer cylinder forms a receiving cavity for inserting one end of the cigarette. A second heat transfer cylinder is provided outside the external heating element and is in close contact with the external heating element.

[0009] As a further improvement, the wall thickness of the second heat transfer cylinder is greater than the wall thickness of the first heat transfer cylinder.

[0010] As a further improvement, the support member includes a support column. The support column is provided with a first communication hole and a second communication hole communicating with the first communication hole. The first communication hole extends axially and penetrates the support surface. The second communication hole extends radially. The internal spaces of the first communication hole and the second communication hole together form the communication air passage.

[0011] As a further improvement, a plurality of the first communication holes are provided, and the orifice sizes of each first communication hole all meet the requirement of preventing the cigarette dropout from entering the first communication hole.

[0012] As a further improvement, only one second communication hole is provided, and the second communication hole communicates with each of the first communication holes.

[0013] As a further improvement, an air heating element for heating the air entering the communication air passage from the air cavity is provided inside the heat insulation member. The heating smoking device further includes a control module, which is communicatively connected to the air heating element and the external heating element to respectively control the on / off states of the air heating element and the external heating element.

[0014] As a further improvement, the support member includes support columns. A plurality of first communication holes and one second communication hole are provided on the support columns. The first communication holes extend axially and penetrate the support surface. The second communication hole extends radially and is in communication with each of the first communication holes. The internal spaces of the first communication holes and the second communication hole together form the communication air passage, and the air heating element is disposed in the second communication hole.

[0015] As a further improvement, the second communication hole is a through hole that penetrates radially, and two air heating elements are provided and are respectively disposed at both ends of the second communication hole.

[0016] As a further improvement, a support rod is provided on the inner wall of the heat insulation member, and the air heating element is an electric heating wire wound around the support rod.

[0017] As a further improvement, the heat insulation member includes a cylindrical main body and an annular edge located at one end of the main body. The external heating element is a heating cylinder. The outer edge of the edge is connected to the main body, and the inner edge is coaxial with and in close contact with the heating cylinder. One end of the second heat transfer cylinder abuts against the end face of the edge. A first groove is provided on the inner circumference of the edge. The groove depth dimension of the first groove in the radial direction is greater than the wall thickness dimension of the second heat transfer cylinder. A second groove is provided at the end of the second heat transfer cylinder. The passage formed by enclosing the outer peripheral wall of the heating cylinder, the first groove, and the second groove constitutes the intake hole.

[0018] The beneficial effect is as follows: specifically, the tobacco material section of the heated cigarette can be inserted into the accommodating cavity, and the heat of the external heating element can be transferred through the first heat transfer cylinder to heat the heated cigarette. At the same time, the outside air can enter the air cavity from the air inlet hole. In the air cavity, the heat of the external heating element can be used to assist in heating the air through the second heat transfer cylinder. The heated air can flow from the connecting airway to the support member and enter the interior of the heated cigarette supported by the support member, thereby coupling the external heating and air heating and improving the uniformity of the internal and external temperatures. Different from the prior art, when the utility model is used, the external heating element does not directly contact the cigarette, and the first heat transfer cylinder is in direct contact with the cigarette. The first heat transfer cylinder will inevitably have heat loss during the heat transfer process, so that the problem of excessively high outer layer temperature caused by the direct contact between the external heating element and the cigarette can be avoided. At the same time, the second heat transfer cylinder will inevitably have heat loss during the heat transfer process to the air cavity, and will not generate hot air with too high a temperature, thereby avoiding the overheated hot air from directly entering the interior of the cigarette. After analysis, it can be known that when the heating tobacco device in the utility model is in use, under the action of the first heat transfer tube and the second heat transfer tube, the heating element is prevented from directly contacting the cigarette, and overheated air will not enter the interior of the cigarette, thereby improving the stability of the puff-by-puff release of chemical components and improving the sustained-release effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of an embodiment of a heated cigarette in the utility model when in use;

[0020] Figure 2 It is a partial cross-sectional view of an embodiment of a heated cigarette in the utility model;

[0021] Figure 3 A top view of an embodiment of a heated cigarette in the utility model;

[0022] Figure 4 It is a schematic diagram of the installation method of the air heating element in the embodiment of the heated cigarette in the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the support member in the embodiment of the heated cigarette in the utility model.

[0024] Description of reference numerals:

[0025] 1. Accommodating cavity; 11. First heat transfer tube; 12. Heating tube; 13. Second heat transfer tube; 2. Air cavity; 3. Heat insulating member; 31. Air inlet hole; 32. Sidewall; 4. Transition member; 5. Shell; 61. Support member; 611. First connecting hole; 612. Second connecting hole; 62. Air heating element; 621. Support rod; 7. Base; 71. Power supply; 72. Control module; 73. Wire; 8. Cigarette; 81. Tobacco material segment. DETAILED DESCRIPTION

[0026] In order to solve the problem of unstable puff-by-puff release and poor sustained-release effect caused by direct contact between the external heating element and the heated cigarette and direct entry of overheated hot air into the cigarette in the prior art, the basic technical concept of the utility model is to provide a heating device that can achieve external heating and air heating coupling, and the inner and outer sides of the external heating element are tightly attached to the heat transfer cylinder. When consumers use the heating device, the heat transfer cylinder inside the external heating element can prevent the external heating element from directly contacting the cigarette, and the heat transfer cylinder outside the external heating element can prevent the air from directly contacting the external heating element, thereby reducing the temperature of the hot air. The utility model uses the heat transfer cylinder to "cut off" the path of the heat generated by the external heating element directly transferred to the air and cigarettes, thereby improving the problem of unstable puff-by-puff release and poor sustained-release effect.

[0027] The present invention is further described in detail below in conjunction with the embodiments.

[0028] The specific embodiment of the heating smoking device provided by the utility model is as follows:

[0029] The heating smoking device provided in this embodiment is as follows Figure 1 As shown, the heating smoking device includes a heat insulating member 3 and an external heating element. The external heating element can be a heating cylinder 12. The heating cylinder 12 is made of an electrothermal ceramic material and is provided with a heating slurry inside. The heating slurry can release a relatively high amount of heat after being energized. The specific structure is a prior art and will not be described in detail here. The heat insulating member 3 is arranged on the radially outer side of the external heating element, and mainly plays the role of isolating heat to prevent excessive heat from being transferred to the outside during the consumer's inhalation process, which affects the consumer's hand-holding experience. Naturally, the heating smoking device also includes a shell 5, and a transition member 4 is also provided between the shell 5 and the heat insulating member 3.

[0030] An air cavity 2 is provided between the heat insulating member 3 and the external heating element. In the embodiment where the external heating element is a heating cylinder 12, a gap is provided between the heating cylinder 12 and the heat insulating member 3, and the annular space formed by the gap is the air cavity 2. The air cavity 2 is provided with an air inlet 31 connected to the outside air, and the outside air can enter the air cavity 2 through the air inlet 31.

[0031] A support member 61 is also provided inside the heat insulating member 3. One end of the accommodating cavity 1 is an open end, i.e. Figure 1 The upper end of the accommodating cavity 1 is provided with the support member 61, which is located at the end of the accommodating cavity 1 away from the outlet end. After the tobacco material segment 81 is inserted, the support member 61 can support the end of the tobacco material segment 81, that is, the support member 61 has a support surface for supporting the cigarette. Similarly, the support member 61 is provided with a communication airway connected to the air cavity 2, the communication airway runs through the support surface, and the air in the air cavity 2 can enter the interior of the cigarette through the communication airway.

[0032] The direct contact of the external heating element with the tobacco material segment 81 will result in more heat being directly transferred to the tobacco material segment 81. Figure 1 and Figure 2 As shown, the heating smoking device further comprises a first heat transfer cylinder 11, and the inner cavity of the first heat transfer cylinder 11 forms a receiving cavity 1 for inserting a cigarette stick 8 of a heated cigarette, specifically for inserting a tobacco material section 81 of a cigarette. The first heat transfer cylinder 11 is close to the inner side of the external heating element. In other words, the external heating element is close to the outer periphery of the first heat transfer cylinder 11, for example, the heating cylinder 12 is close to the outer periphery of the first heat transfer cylinder 11. In other embodiments, the external heating element may also be a heating resistance wire close to the outer periphery of the first heat transfer cylinder 11. The first heat transfer cylinder 11 is preferably made of a material with good thermal conductivity, such as copper or aluminum. The heating cylinder 12 and the first heat transfer cylinder 11 may be installed above the support member 61 and supported by the support member 61. In order to prevent the excessive heat of the external heating element from being transferred to the air cavity 2 and causing the air in the air cavity 2 to be overheated, in this embodiment, a second heat transfer cylinder 13 close to the external heating element is further provided on the outer side of the external heating element. Specifically, the second heat transfer cylinder 13 may be made of a material with good thermal conductivity, such as copper or aluminum.

[0033] When the heating smoking device of this embodiment is used for smoking, the heat generated by the external heating element can be transferred to the outer periphery of the heated cigarette through the first heat transfer tube 11. Figure 2 As shown, the outside air enters the heating chamber through the air inlet 31, and enters the heated cigarette through the connecting airway. During the air flow, the heat generated by the external heating element can also be transferred to the air through the second heat transfer cylinder 13, and the air can enter the heated cigarette after being heated. Therefore, the heating tobacco device realizes the coupled heating of external heating and air heating when in use, which can improve the problem of uneven internal and external temperature caused by only external heating. At the same time, the external heating element will neither directly contact the cigarette nor the air in the air cavity 2, avoiding excessive heat directly transferred to the air or heating the cigarette, so it can also improve the problem of unstable puff-by-puff release of cigarettes and poor sustained release effect.

[0034] Preferably, the wall thickness of the second heat transfer tube 13 is greater than the wall thickness of the first heat transfer tube 11. This can further reduce the temperature of the hot air and avoid the generation of overheated hot air.

[0035] As an embodiment of an integral support member 61, Figures 3 - 5As shown, the support member 61 includes a columnar support post, on which a first communication hole 611 and a second communication hole 612 are provided. The first communication hole 611 extends axially and penetrates the support surface for supporting the cigarette. The second communication hole 612 extends radially, and the first communication hole 611 and the second communication hole 612 are in communication. The air in the air chamber 2 can enter the interior of the cigarette through the second communication hole 612 and the first communication hole 611. That is to say, the internal spaces of the first communication hole 611 and the second communication hole 612 together form a communication airway. Adopting such an integral support member 61 is convenient for processing and manufacturing. In other embodiments, the support member 61 can also be a split structure. For example, the support member 61 can include a plurality of fan-shaped monomers, and there is a gap between two adjacent fan-shaped monomers in the circumferential direction, and the space between the gaps forms a communication airway.

[0036] In addition, an air heating element 62 is also provided inside the heat insulation member 3. The air heating element 62 is used to heat the air entering the communication airway from the air chamber 2. In this process, the air heating element 62 can heat the air and heat it to a relatively high temperature. After the hot air enters the interior of the cigarette, it can heat the cigarette from the inside of the heated cigarette. The heating smoking device also includes a control module 72. The main function of the control module 72 is to control the external heating element and the air heating element 62, and it should be communicatively connected to both the external heating element and the air heating element 62. Naturally, it at least includes a controller, and both the controller and the communication protocol are prior arts, and the specific models are no longer limited. The control module 72 can separately control the on-off of the external heating element and the air heating element 62. When a consumer smokes a heated cigarette, the control module 72 can separately control the external heating element and the air heating element 62 to be turned on or off. For example, in the early stage of smoking, only the external heating element can be enabled, and the external heating element and the first heat transfer cylinder 11 and the second heat transfer cylinder 13 arranged on the inner and outer sides in the radial direction are used to "coupled" heat the tobacco material. In the later stage of smoking, only the air heating element 62 can be enabled, and the high-temperature hot air is used to heat the tobacco material to ensure that the chemical components remaining inside the tobacco material can be completely released.

[0037] Specifically, as Figures 2 - 5 shown, the air heating element 62 is arranged in the second communication hole 612. On the one hand, the internal space of the second communication hole 612 can be used to accommodate the air heating element 62, making the overall structure of the heating smoking device more compact; on the other hand, it also makes the air heating element 62 directly arranged on the communication airway, or rather, facing the communication airway, so that the heat of the air heating element 62 can be fully utilized to heat the air to a sufficiently high temperature. It is not difficult to understand that in other embodiments, the air heating element 62 is not necessarily arranged inside the second communication hole 612, and it can also be arranged in the air chamber 2. Taking Figure 2 as an example, the air heating element 62 can also be arranged in Figure 2On the radially outer side of the second heat transfer cylinder 13 therein. At this time, the air heating element 62 can also play a role in heating the air entering the communication air passage.

[0038] More specifically, only one second communication hole 612 is provided, specifically a through hole that penetrates radially. Two air heating elements 62 are provided, and the two air heating elements 62 are respectively arranged at both ends of the second communication hole 612. On the one hand, this can increase the flow area of the communication air passage, and on the other hand, it can also ensure that the air entering from either end can be heated by the air heating element 62. Preferably, as Figure 4 and Figure 5 shown, the cross-section of the second communication hole 612 is a rectangular cross-section. In this way, a relatively large flow area can be obtained, and it is also convenient to arrange the air heating element 62.

[0039] In addition, a plurality of first communication holes 611 are provided. As Figure 5 shown, the first communication holes 611 are basically evenly distributed on the support member 61, and each of the first communication holes 611 at different positions communicates with the second communication hole 612. For the first communication hole 611 directly above the second communication hole 612, at this time, the first communication hole 611 can directly penetrate to the second communication hole 612, so as to directly communicate with the second communication hole 612. For the first communication hole 611 obliquely above the second communication hole 612, air holes can be processed on the hole wall of the second communication hole 612 so that the first communication hole 611 and the second communication hole 612 communicate.

[0040] Preferably, in some embodiments, the principle of setting the first communication holes 611 is that a relatively large number can be increased, but the aperture of the first communication holes 611 should not be increased. The number of the first communication holes 611 satisfies that the total cross-sectional area of the first communication holes 611 is not less than 80% of the support surface area. A relatively large number of the first communication holes 611 can meet the requirement that hot air can enter the cigarette at different positions in the radial direction of the heated cigarette. At the same time, the orifice size of the first communication holes 611 is small, and cigarette falling objects (such as tobacco shreds, tobacco flakes, etc.) can be blocked by the orifices of the first communication holes 611, so as to avoid the cigarette falling objects entering the interior of the first communication holes 611 and prevent the cigarette falling objects from blocking the first communication holes 611.

[0041] In addition, regardless of the form of the support member 61 adopted, the air heating element 62 can be an electric heating wire. Specifically, a support rod 621 is provided on the inner wall of the heat insulation member 3, and the electric heating wire is wound around the support rod 621. As a mature product in the prior art, the installation of the electric heating wire can be completed by providing the support rod 621 on the inner wall of the heat insulation member 3, and the cost is relatively low. As Figure 1 and Figure 2As shown, the heating element further includes a base 7, and a support member 61 is disposed on the base 7. The base 7 mainly functions to insulate heat and support the support member 61. A power source 71 of the heating element is provided below the base 7, and the power source 71 is connected to an air heating element 62, i.e., an electric heating wire, through a wire 73. The base 7 is provided with a through hole for the wire 73 to pass through; alternatively, the wire 73 is integrated inside the base 7, and both ends of the integrated wire 73 can be respectively connected to the power source 71 and the air heating element 62. The power source 71 can adopt a rechargeable battery in the prior art, such as a lithium battery.

[0042] Furthermore, as Figures 1 - 3 shown, the heat insulation member 3 includes a cylindrical main body and a flange 32 located at one end of the main body. The flange 32 is a ring structure. The outer edge of the flange 32 is connected to the main body, and the inner edge is coaxial with and closely fitted to the heating cylinder 12. One end of the second heat transfer cylinder 13 abuts against the end face of the flange 32. That is to say, the heating cylinder 12, the main body of the heat insulation member 3, and the flange 32 jointly enclose an air cavity 2. A groove is provided on the inner circumference of the baffle. For the convenience of understanding, this groove is defined as the first groove. The first groove extends radially along the flange 32, and the groove depth dimension in the radial direction is greater than the wall thickness dimension of the second heat transfer cylinder 13. A groove is provided at the end of the second heat transfer cylinder 13. This groove is defined as the second groove. The second groove is a groove extending axially, and the depth in the axial direction should not be too deep. The passage enclosed by the heating cylinder 12, the first groove, and the second groove is the air inlet hole 31. In this way, while ensuring a large flow area, in fact, the passage opening of the air inlet hole 31 extends axially, and the bottom of the second groove can play a role in blocking foreign objects from entering the air cavity 2. In other words, the bottom surface of the second groove can form a blocking surface for blocking foreign objects from entering the air cavity 2. Preferably, as Figure 3 shown, the shape of the first groove is an arc structure. In this way, while ensuring a large flow area of the air inlet hole 31, it can also avoid excessive exposure of the part of the groove facing the air cavity 2, and in addition, the arc-shaped groove is more beautiful.

[0043] Of course, in other embodiments, considering that the function of the air inlet hole is to allow air to enter the air cavity 2, in fact, the air inlet hole can also be a hole extending radially until it penetrates the outer shell 5.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heating smoking device, comprising a heat insulating member and an external heating element, wherein the heat insulating member is arranged on the outside of the external heating element and there is a gap between the two, the space corresponding to the gap forms an air cavity, the air cavity is provided with an air inlet hole connected to the outside air, a support member is further provided on the inner side of the heat insulating member, the support member has a support surface for supporting cigarettes, and the support member is further provided with a connecting airway penetrating the support surface and connected to the air cavity, wherein the feature is that: A first heat transfer tube is provided on the inner side of the outer heating element, and the inner cavity of the first heat transfer tube constitutes a receiving cavity for inserting one end of the cigarette. A second heat transfer tube is provided on the outer side of the outer heating element, and the second heat transfer tube is provided on the outer side of the outer heating element.

2. The heating smoking device according to claim 1, characterized in that: The wall thickness of the second heat transfer tube is greater than the wall thickness of the first heat transfer tube.

3. The heating smoking device according to claim 1 or 2, characterized in that: The support member includes a support column, on which is provided a first connecting hole and a second connecting hole connected to the first connecting hole. The first connecting hole extends axially and passes through the support surface, and the second connecting hole extends radially. The internal spaces of the first connecting hole and the second connecting hole together form the connecting airway.

4. The heating smoking device according to claim 3, characterized in that: There are a plurality of first communicating holes, and the opening size of each first communicating hole is sufficient to prevent cigarette debris from entering the first communicating hole.

5. The heating smoking device according to claim 4, characterized in that: There is only one second communicating hole, and the second communicating hole is communicated with each of the first communicating holes.

6. The heating smoking device according to claim 1 or 2, characterized in that: An air heating element is provided on the inner side of the heat insulation component for heating the air entering the connecting airway from the air cavity. The heating smoking device also includes a control module, which is communicated with the air heating element and the external heating element to control the power on and off of the air heating element and the external heating element respectively.

7. The heating smoking device according to claim 6, characterized in that: The support member includes a support column, on which are provided a plurality of first connecting holes and a second connecting hole. The first connecting hole extends axially and passes through the support surface, and the second connecting hole extends radially. The second connecting hole is connected to each of the first connecting holes, and the internal spaces of the first connecting hole and the second connecting hole together form the connecting airway, and the air heating element is arranged in the second connecting hole.

8. The heating smoking device according to claim 7, characterized in that: The second connecting hole is a radially penetrating through hole, and two air heating elements are provided and are respectively arranged at the two ends of the second connecting hole.

9. The heating smoking device according to claim 6, characterized in that: A support rod is arranged on the inner wall of the heat insulation component, and the air heating element is an electric heating wire wound on the support rod.

10. The heating smoking device according to claim 1 or 2, characterized in that: The heat insulating member includes a cylindrical main body and an annular rib located at one end of the main body. The external heating element is a heating tube. The outer edge of the rib is connected to the main body, and the inner edge is coaxial and tightly fitted with the heating tube. One end of the second heat transfer tube abuts against the end face of the rib. A first groove is provided on the inner periphery of the rib. The groove depth of the first groove in the radial direction is greater than the wall thickness of the second heat transfer tube. A second groove is provided at the end of the second heat transfer tube. The channel formed by the outer peripheral wall of the heating tube, the first groove and the second groove constitutes the air inlet.

Images