Aerosol generating device and system

Abstract

The invention provides an aerosol generating device and system. The aerosol generating device comprises: a support having an accommodating cavity; the heat conduction pipe is arranged in the containing cavity, the heat conduction pipe comprises an annular main body part and a bottom part, the annular main body part and the bottom part are matched to form a containing cavity, and the containing cavity is used for containing the aerosol generating product; the heat conduction performance of the heat conduction pipe is better than that of the support. The heating body is arranged on the bottom wall of the containing cavity and penetrates through the bottom to be inserted into the containing cavity. The aerosol generating device can increase the generation amount of aerosol in the later heating period, and cost and energy consumption cannot be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic atomization, and in particular to an aerosol generating device and system. Background Art

[0002] The Heat Not Burning (HNB) aerosol generating system is a combination of an aerosol generating device and an aerosol generating product. The aerosol generating product is contained in the aerosol generating device and includes an aerosol generating substrate. The aerosol generating device heats the aerosol generating substrate to a temperature that can generate aerosol but is not high enough to burn, so that the aerosol generating substrate can generate the aerosol required by the user without burning.

[0003] However, the existing aerosol generating device has the problem of attenuation of the aerosol formed by atomization in the later stage of heating. Summary of the invention

[0004] The aerosol generating device and aerosol generating system provided in the present application mainly solve the problem of attenuation of aerosol formed by atomization in the late stage of heating in the existing aerosol generating device.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an aerosol generating device, comprising: a bracket, having a accommodating cavity; a heat-conducting tube, arranged in the accommodating cavity, and the heat-conducting tube comprises an annular main body and a bottom, the annular main body cooperates with the bottom to form a accommodating cavity, and the accommodating cavity is used to accommodate the aerosol generating product; wherein the thermal conductivity of the heat-conducting tube is better than the thermal conductivity of the bracket; a heating element, arranged on the bottom wall of the accommodating cavity, and inserted into the accommodating cavity through the bottom.

[0006] In one embodiment, the inner wall surface of the annular main body has a protruding structure, and the protruding structure is used to abut against the outer side surface of the aerosol generating product, so that the heat conducting tube can move synchronously with the aerosol generating product.

[0007] In one embodiment, the annular main body includes a first tube segment and a second tube segment that are connected to each other; the first tube segment is used to accommodate the matrix segment of the aerosol generating product, and the second tube segment is used to accommodate the cooling segment of the aerosol generating product; a plurality of the protruding structures are spaced apart on the inner surface of the second tube segment.

[0008] In one embodiment, the annular main body comprises a first tube segment and a second tube segment connected to each other; the first tube segment is used to accommodate the substrate segment of the aerosol generating product, and the second tube segment is used to accommodate the cooling segment of the aerosol generating product;

[0009] A plurality of through holes are provided at the connection between the second pipe segment and the first pipe segment; or a plurality of through holes are provided at a position of the second pipe segment close to the first pipe segment; and the plurality of through holes are arranged at intervals along the circumferential direction of the heat conducting pipe.

[0010] In one of the embodiments, the bottom portion further comprises an insertion hole, and the heating element contacts a hole wall of the insertion hole.

[0011] In one embodiment, the bottom includes an annular bottom wall and an extension tube, the extension tube extends from the inner edge of the annular bottom wall in a direction away from the accommodating cavity and cooperates with the inner edge of the annular bottom wall to form the insertion hole; the heating element is in contact with the inner surface of the extension tube.

[0012] In one embodiment, the side wall of the extension tube has an air inlet, the heating element is spaced apart from a portion of the hole wall of the insertion hole, and cooperates with an air inlet channel, and the air inlet is connected to the receiving cavity through the air inlet channel; wherein the connection between the annular bottom wall and the extension tube is inclined in a direction away from the central axis of the insertion hole.

[0013] In one of the embodiments, the bottom wall further includes an annular extension wall, and the annular extension wall extends from an end of the extension tube away from the annular bottom wall to a periphery away from the central axis of the insertion hole.

[0014] In one of the embodiments, a plurality of supporting structures are provided on a surface of the annular extension wall facing away from the annular main body, the plurality of supporting structures are arranged at intervals, and the heat conducting pipe abuts against the bottom wall of the accommodating cavity through the plurality of supporting structures.

[0015] In one embodiment, the annular main body comprises a first tube segment and a second tube segment connected to each other; the first tube segment is used to accommodate the substrate segment of the aerosol generating product, and the second tube segment is used to accommodate the cooling segment of the aerosol generating product;

[0016] The metal tube also includes an insulation tube; the insulation tube is sleeved on the outside of the first tube section, and both ends of the insulation tube are respectively sealed and connected to the first tube section, and the other parts of the insulation tube are spaced apart from the outer wall of the first tube section.

[0017] In one of the embodiments, a heat reflecting layer is provided on a surface of the heat-insulating tube facing the first tube section.

[0018] In one embodiment, a first limiting member and a second limiting member are provided in the accommodating cavity, and the first limiting member and the second limiting member are arranged at intervals along the axial direction of the accommodating cavity;

[0019] The outer wall surface of the annular main body has a flange portion, and the flange portion is located between the first limiting member and the second limiting member, and can move between the first limiting member and the second limiting member along the axial direction of the accommodating cavity.

[0020] In one embodiment, the heat conducting pipe is a metal pipe.

[0021] In order to solve the above-mentioned technical problems, another technical solution adopted in the present application is: to provide an aerosol generating system, comprising: an aerosol generating device, which is the aerosol generating device involved above; an aerosol generating product, which is accommodated in the aerosol generating device, and the aerosol generating device is used to heat and atomize the aerosol generating product to form an aerosol.

[0022] The beneficial effects of the embodiments of the present application are different from those of the prior art: the aerosol generating device provided by the embodiments of the present application includes a bracket, a heat conducting tube and a heating element: the bracket has a receiving cavity; the heat conducting tube is arranged in the receiving cavity, and the heat conducting tube includes an annular main body and a bottom, the annular main body cooperates with the bottom to form a receiving cavity, and the receiving cavity is used to receive the aerosol generating product; and the thermal conductivity of the heat conducting tube is better than that of the bracket; the heating element is arranged on the bottom wall of the receiving cavity, and is inserted into the receiving cavity through the bottom. Among them, by making the thermal conductivity of the heat conducting tube better than that of the bracket, during the heating process, the heat of the heating element will be more transferred to the heat conducting tube; in the later stage of heating, the heat conducting tube has a higher temperature, so that in the later stage of heating, the heat conducting tube can be used as an auxiliary heat source to perform circumferential heating on the aerosol generating product, so as to optimize the problem of the attenuation of the amount of aerosol generated in the later stage of heating, and effectively increase the amount of aerosol generated in the later stage of heating; at the same time, there is no need to add an additional heat source, and there is no need to increase temperature control, which will not increase costs, and can reduce energy consumption and improve energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the overall structure of an aerosol generating system provided in one embodiment of the present application;

[0024] Figure 2 This is an embodiment of the present application. Figure 1 A cross-sectional view taken along line AA of the aerosol generating system shown;

[0025] Figure 3 This is an embodiment of the present application. Figure 1 An AA sectional view of the aerosol generating device in the aerosol generating system shown;

[0026] Figure 4 yes Figure 2 Enlarged view of point C in the middle;

[0027] Figure 5This is a schematic diagram of the overall structure of a heat pipe provided in one embodiment of the present application;

[0028] Figure 6 yes Figure 5 EE sectional view of the heat pipe shown;

[0029] Figures 7 and 8 is a schematic diagram of the process of pulling out the aerosol generating product from the aerosol generating device;

[0030] Fig. 9 yes Figure 6 An enlarged view of the heat pipe at F shown;

[0031] Fig.10 yes Fig. 9 A cross-sectional view of the bottom taken along the line GG is shown;

[0032] Fig.11 is a schematic diagram of the overall structure of a heat pipe provided in another embodiment of the present application;

[0033] Fig.12 yes Fig.11 A cross-sectional view of the heat pipe shown in the figure along the HH axis;

[0034] Fig.13 yes Figure 3 Magnified view of D of the structure shown.

[0035] Description of Figure Numbers:

[0036] 1-aerosol generating product; 2-aerosol generating device; 3-accommodating chamber; 4-heat conducting pipe; 5-accommodating chamber; 6-annular main body; 7-bottom; 8-convex structure; 9-first pipe section; 10-second pipe section; 11-through hole; 12-cooling section; 13-matrix section; 14-insertion hole; 15-heating element; 16-annular bottom wall; 17-extension pipe; 18-air inlet; 19-annular extension wall; 20-support structure; 21-insulating pipe; 22-heat reflecting layer; 23-vacuum insulation structure; 24-bracket; 25-first limiter; 26-second limiter; 27-flange; 28-fixing member; 29-cover; 30-sleeve part. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] The aerosol generating device includes a containing tube and a heating element, and the containing tube is used to contain the aerosol generating product. The heating element is used to be inserted into the aerosol generating product to perform central heating on the aerosol generating product, so that the aerosol generating product is atomized to form an aerosol. However, the central heating heating element has the problem of aerosol attenuation in the later stage of heating, that is, the amount of aerosol generated is reduced. In the related art, the problem of aerosol attenuation is usually optimized by increasing temperature control or combining central heating with peripheral heating, but increasing temperature control will increase energy consumption; the combination of central heating and peripheral heating requires two heat sources, and the production cost and energy consumption will increase. Moreover, the existing containing tubes usually use plastic tubes, such as tubes made of polyetheretherketone, which have limited temperature resistance and inconvenient molding of some features of mold injection.

[0041] Based on this, an embodiment of the present application provides an aerosol generating device, which uses a heat pipe with better thermal conductivity to accommodate the aerosol generating product, so that the heat of the heating element can be transferred to the heat pipe more, so that in the later stage of heating, the heat pipe can be used as an auxiliary heat source to perform circumferential heating on the aerosol generating product, so as to optimize the problem of aerosol amount attenuation in the later stage of heating, thereby increasing the amount of aerosol generated in the later stage of heating; at the same time, there is no need to add additional heat sources, and the cost will not be increased.

[0042] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0043] See also Figure 1 , Figure 1 It is a schematic diagram of the overall structure of an aerosol generating system provided in one embodiment of the present application. Figure 2 This is an embodiment of the present application. Figure 1 The AA sectional view of the aerosol generating system is shown. In this embodiment, an aerosol generating system is provided. The aerosol generating system comprises an aerosol generating article 1 and an aerosol generating device 2.

[0044] The aerosol generating product 1 includes a matrix section 13, a cooling section 12, a filter section and a mouthpiece connected in sequence. The matrix section 13 includes an aerosol generating matrix, which is used to be heated to form an aerosol. The aerosol generating matrix can be a solid matrix, which can include one or more of powders, particles, fragments, strips or flakes of one or more plant leaves such as tobacco, vanilla leaves, tea leaves, mint leaves, etc.; or, the solid matrix can contain additional volatile aroma compounds to be released when the matrix is ​​heated. Of course, the aerosol generating matrix can also include a liquid matrix or a paste matrix, such as oils and liquid medicines with added aroma components. Other specific structures and functions of the aerosol generating product 1 can be referred to the existing aerosol generating products, which will not be repeated here. The cooling section 12 is used to cool the aerosol formed by atomization; the filter section is used to filter the aerosol to prevent the residue of the aerosol generating matrix from flowing out with the aerosol; the user inhales the aerosol through the mouthpiece. For other specific structures of the aerosol generating article 1, reference may be made to existing related structures.

[0045] The aerosol generating device 2 is used to contain the aerosol generating product 1 and heat and atomize the aerosol generating product 1 to form an aerosol. The specific structure and function of the aerosol generating device 2 can refer to the relevant description of the aerosol generating device 2 in the following embodiment.

[0046] See also Figure 2-Figure 6 , Figure 3 This is an embodiment of the present application. Figure 1 An AA sectional view of the aerosol generating device in the aerosol generating system shown; Figure 4 yes Figure 2 Enlarged view of point C in the middle; Figure 5 This is a schematic diagram of the overall structure of a heat pipe provided in one embodiment of the present application; Figure 6 yes Figure 5 In this embodiment, an aerosol generating device 2 is provided, which can be used in the fields of medical atomization, leisure inhalation, and cosmetic atomization. The aerosol generating device 2 has a bracket 24, a heat conducting tube 4, and a heating element 15.

[0047] The support 24 has a receiving cavity 3, and the receiving cavity 3 is used to receive the aerosol generating product 1. The heat conducting tube 4 is received in the receiving cavity 3, and the heat conducting tube 4 includes an annular main body 6 and a bottom 7, and the annular main body 6 cooperates with the bottom 7 to form a receiving cavity 5; the annular main body 6 and the bottom 7 can be integrally formed to facilitate injection molding. The receiving cavity 5 is used to receive the aerosol generating product 1. The heating element 15 is arranged on the bottom wall of the receiving cavity 3, and is inserted into the receiving cavity 5 through the bottom 7, and is used to centrally heat the aerosol generating product 1 to form an aerosol. Among them, the thermal conductivity of the heat pipe 4 is better than that of the bracket 24; thus, during the heating process, the heat of the heating element 15 will be more transferred to the heat pipe 4; in the later stage of heating, the heat pipe 4 has a higher temperature, so that in the later stage of heating, the heat pipe 4 can be used as an auxiliary heat source to perform circumferential heating on the aerosol generating product 1, so as to optimize the problem of aerosol attenuation in the later stage of heating, thereby increasing the amount of aerosol generated in the later stage of heating; at the same time, there is no need to add additional heat sources, and the cost will not be increased.

[0048] Specifically, the heat-conducting tube 4 can be a metal tube, and the heat-conducting performance of the metal tube is better than that of the plastic tube, for example, better than that of the container tube made of polyetheretherketone (PEEK), that is, the heat-conducting performance of the metal tube is faster than that of the plastic tube. In the later stage of heating, the heat-conducting tube 4 can provide a higher temperature as an auxiliary heat source. The metal tube can withstand higher temperatures and has a low production cost. At the same time, compared with the container tube made of PEEK material, the temperature resistance of the container tube made of PEEK material is limited, and some features of the mold injection molding are inconvenient, such as the convex point structure of the inner cavity of the heat-conducting tube 4. When plastic or silicone parts are used as the heat-conducting tube 4, during the process of pulling out the aerosol-generating product 1, the heat-conducting body 15 is not heat-resistant enough when the waste residue and dirt are removed, which will melt the heat-conducting tube 4. The temperature resistance of the metal tube is higher than that of the container tube made of polyetheretherketone, which not only facilitates the injection molding of the metal tube, but also allows the metal tube to be used as an auxiliary heat source to optimize the problem of heat attenuation in the later stage of heating.

[0049] The metal pipe can be a stainless steel pipe or other high temperature resistant metal pipe.

[0050] In one embodiment, in combination Figure 4 , Figure 7 and Figure 8 , Figure 7 and Figure 8, is a schematic diagram of the process of pulling out the aerosol generating product from the aerosol generating device 2; the heat conducting tube 4 is configured to slide synchronously with the aerosol generating product 1 along the axial direction of the accommodating chamber 3. Since the heat conducting tube 4 has a bottom 7, in the process of pulling out the aerosol generating product 1 from the aerosol generating device 2, by making the heat conducting tube 4 slide synchronously with the aerosol generating product 1, the bottom 7 of the heat conducting tube 4 can be used to support the aerosol generating product 1, so as to reduce the risk of the residue of the aerosol generating product 1 falling into the accommodating chamber 3 after atomization.

[0051] For details, please refer to Figure 5 and Figure 6 The inner wall surface of the annular main body 6 has at least one protruding structure 8, which is used to abut against the outer side surface of the aerosol generating product 1, so as to fix the relative position of the heat conducting tube 4 and the aerosol generating product 1 through the friction between the protruding structure 8 and the aerosol generating product 1, so that the heat conducting tube 4 can move synchronously with the aerosol generating product 1. Specifically, the surface roughness of the protruding structure 8 is moderate, so that the aerosol generating product 1 is easily inserted into the receiving cavity 5. The protruding structure 8 can be a convex point, a convex block or a convex rib, etc.

[0052] Specifically, along the circumferential direction of the inner cavity of the heat-conducting tube 4, the minimum cross-sectional area of ​​the cavity formed by the protruding structure 8 and the inner wall surface of the annular main body 6 is smaller than the cross-sectional area of ​​the aerosol generating product 1; in this way, after the aerosol generating product 1 is inserted into the accommodating cavity 5, the protruding structure 8 can squeeze the aerosol generating product 1, so that the aerosol generating product 1 and the heat-conducting tube 4 are tightly fitted, so that during the process of pulling out the aerosol generating product 1, the aerosol generating product 1 can drive the heat-conducting tube 4 to move.

[0053] In one embodiment, in combination Figure 4 and Figure 6 The annular main body 6 includes a first tube segment 9 and a second tube segment 10 connected to each other; the first tube segment 9 is used to accommodate the matrix segment 13 of the aerosol generating product 1, and the second tube segment 10 is used to accommodate the cooling segment 12 of the aerosol generating product 1; the plurality of protrusion structures 8 are specifically arranged at intervals on the inner surface of the second tube segment 10. In this way, the influence on the matrix segment 13 can be avoided. Specifically, the plurality of protrusion structures 8 can be arranged at intervals along the circumferential direction of the second tube segment 10.

[0054] In one embodiment, Figure 6As shown. A plurality of through holes 11 are provided at the connection between the second pipe segment 10 and the first pipe segment 9; or a plurality of through holes 11 are provided at a position of the second pipe segment 10 close to the first pipe segment 9; and a plurality of through holes 11 are arranged at intervals along the circumferential direction of the heat-conducting tube 4. In this way, the heat conduction from the first pipe segment 9 to the second pipe segment 10 can be reduced, so as to reduce the influence of the heat of the second pipe segment 10 on the cooling section 12 of the aerosol generating article 1. At the same time, compared with the solution of providing the through holes 11 on the first pipe segment 9, the through holes 11 can be prevented from affecting the heat uniformity of the entire first pipe segment 9.

[0055] Among them, the through hole 11 can be a rectangular hole, a strip hole, a triangular hole, a circular hole, etc. Along the circumferential direction of the heat pipe 4, the ratio of the total length of the plurality of through holes 11 to the circumference of the heat pipe 4 is greater than or equal to 0.5 and less than or equal to 0.9, for example, the ratio is 0.6, 0.7, 0.8 or 0.9. Among them, if the ratio is too small, the effect on reducing heat conduction is small; if the ratio is too large, it will affect the connection stability between the first pipe section 9 and the second pipe section 10. It can be understood that the through hole 11 is located in the second pipe section 10, and the positive projection of the through hole 11 along the radial direction of the receiving cavity 5 falls on the cooling section 12.

[0056] In one embodiment, if Figure 6 As shown, the bottom 7 of the heat conducting tube 4 has an insertion hole 14, and the heating element 15 is in contact with the hole wall of the insertion hole 14; in this way, the heat of the heating element 15 can be more transferred to the heat conducting tube 4, so that the heat conducting tube 4 can be used to store more heat, and the heat stored in the heat conducting tube 4 can be used to heat the aerosol generating product 1 in the later stage of heating. The heating element 15 can be in contact with part of the hole wall of the insertion hole 14; or the heating element 15 can be in contact with the entire hole wall of the insertion hole 14, and here, the aerosol generating device 2 can be inlet through other positions of the bottom 7.

[0057] For details, see Fig. 9 and Fig.10 , Fig. 9 yes Figure 6 An enlarged view of the heat pipe at F shown; Fig.10 yes Fig. 9 The bottom 7 is a cross-sectional view taken in the direction of GG; the bottom 7 includes an annular bottom wall 16 and an extension tube 17, the extension tube 17 extends from the inner edge of the annular bottom wall 16 in a direction away from the receiving cavity 5, and cooperates with the inner edge of the annular bottom wall 16 to form an insertion hole 14; the heating element 15 is in contact with the inner surface of the extension tube 17. The inner surface of the extension tube 17 is smooth, which facilitates the insertion of the heating element 15 and avoids the adhesion of waste residue and dirt. The heat conducting tube 4 is close to the heating element 15, which can increase the heat energy conducted from the heating element 15 to the heat conducting tube 4, and at the same time, the heat conducting tube 4 can remove the waste residue and dirt on the surface of the heating element 15 when the aerosol generating product 1 is lifted.

[0058] The side wall of the extension tube 17 has an air inlet 18, the heating element 15 is spaced apart from a portion of the hole wall of the insertion hole 14, and cooperates with an air inlet channel, the air inlet 18 is connected to the receiving chamber 5 through the air inlet channel; the external gas enters the aerosol generating product 1 through the air inlet 18 and the air inlet channel. Fig.10 , the connection N between the annular bottom wall 16 and the extension tube 17 is inclined in a direction away from the central axis M of the insertion hole 14; that is, the connection between the annular bottom wall 16 and the extension tube 17 forms a chamfer. This arrangement can guide the airflow to the circumferential edge of the annular bottom wall 16, so that the aerosol generating product 1 can inhale air from the circumferential edge away from its central axis, avoiding the formation of columnar turbulence in the airflow to affect the user's puffing taste.

[0059] The air inlet 18 may be a rectangular opening, a triangular opening, a circular opening, etc.

[0060] Of course, in other embodiments, the heating element 15 is spaced apart from the inner wall surface of the insertion hole 14, and along the radial direction of the insertion hole 14, the spacing between the outer wall surface of the heating element 15 and the inner wall surface of the insertion hole 14 is 0-0.5 mm; in this way, not only can the heat conducted to the heat pipe 4 by the heating element 15 be increased; but also in the process of pulling out the aerosol generating product 1, the inner wall surface of the insertion hole 14 can be used to scrape off the smoke residue / dirt on the surface of the heating element 15.

[0061] Furthermore, the bottom 7 of the heat conducting pipe 4 further includes an annular extension wall 19, which extends from one end of the extension pipe 17 away from the annular bottom wall 16 to the periphery away from the central axis M of the insertion hole 14. A plurality of support structures 20 are provided on the surface of the annular extension wall 19 away from the main body, and the plurality of support structures 20 are arranged at intervals, and the heat conducting pipe 4 abuts against the bottom wall of the accommodating cavity 3 through the plurality of support structures 20. In this way, the contact area between the heat conducting pipe 4 and the bottom wall of the accommodating cavity 3 can be reduced, so as to reduce the heat of the heat conducting pipe 4 from being further thermally conducted to the bottom wall of the accommodating cavity 3, thereby reducing the heat loss on the heat conducting pipe 4.

[0062] Specifically, the support structure 20 may be a convex point, a convex block or a convex rib, etc. Specifically, there are at least three support structures 20. Too many support structures 20 will transfer the heat of the heat pipe 4 to the bottom wall of the accommodating chamber 3 and other components in the aerosol generating device 2, while too few support structures 20 will affect the balance of the heat pipe 4 in the accommodating chamber 3.

[0063] In one embodiment, see Fig.11 and Fig.12 , Fig.11 is a schematic diagram of the overall structure of a heat pipe provided in another embodiment of the present application; Fig.12 yes Fig.11The heat-conducting pipe 4 also includes a heat-insulating pipe 21; the heat-insulating pipe 21 is sleeved on the outside of the first pipe section 9, and the two ends of the heat-insulating pipe 21 are respectively sealed and connected to the first pipe section 9, and the other parts of the heat-insulating pipe 21 are spaced apart from the outer wall surface of the first pipe section 9, so that the heat-insulating pipe 21 and the outer wall surface of the first pipe section 9 cooperate to form a vacuum heat-insulating structure 23; in the vacuum heat-insulating structure 23, air does not circulate, so no heat exchange occurs, which can enhance the overall heat preservation effect of the first pipe section 9 of the heat-conducting pipe 4; in addition, it can also prevent the heat in the receiving cavity 5 of the heat-conducting pipe 4 from being transferred to the outer shell through the first pipe section 9, avoiding the problem of scalding.

[0064] In a specific embodiment, a heat reflective layer 22 is provided on one side of the heat insulation tube 21 facing the first tube section 9 to further improve the heat preservation effect of the heat insulation tube 21. Specifically, the inner side of the heat insulation tube 21 can be silver-plated to form the heat reflective layer 22, so that the silver-plated surface reflects the radiant heat and enhances the heat preservation effect of the heat conduction tube 4.

[0065] In the aerosol generating device 2 provided above, the heat pipe 4 serves as an auxiliary heat source. When the heating element 15 starts to heat, the heating element 15 transfers heat through the extension tube 17 at the bottom 7 of the heat pipe 4 and the matrix section 13 of the aerosol generating product 1. The heat is transferred to the heat pipe 4. The heat pipe 4 itself and the vacuum insulation structure 23 formed by the interval between the heat pipe 4 and the insulation tube 21 can collect and store the heat of the heating element 15. In the later stage of heating, the heat stored in the heat pipe 4 heats the circumference of the aerosol generating product 1, increases the amount of aerosol generated in the later stage, and solves the problem of attenuation of the amount of aerosol in the later stage. Compared with the prior art, the attenuation of the aerosol in the later stage is solved by increasing the temperature control. The present application optimizes by using the heat pipe 4 as an auxiliary heat source. There is no need to raise the temperature control, which can reduce the energy consumption of the aerosol generating device 2 and improve the energy utilization rate. Compared with the method of combining central heating and peripheral heating, the method of using the heat pipe 4 as an auxiliary heat source does not add an additional heat source, reduces the production cost of the aerosol generating device 2, reduces energy consumption, and improves heating efficiency.

[0066] In a specific embodiment, in combination Fig.13 , Fig.13 yes Figure 3The enlarged view of the structure shown at D. The first stopper 25 and the second stopper 26 are provided in the accommodating chamber 3 of the aerosol generating device 2, and the first stopper 25 and the second stopper 26 are arranged at intervals along the axial direction Y of the accommodating chamber 3; the outer wall surface of the annular main body 6 has a flange portion 27, and the flange portion 27 is located between the first stopper 25 and the second stopper 26, and can move between the first stopper 25 and the second stopper 26 along the axial direction Y of the accommodating chamber 3. In this way, in the process of pulling out the aerosol generating product 1 along the axial direction Y of the accommodating chamber 3, the first stopper 25 can be used to stop the heat conducting tube 4, so as to prevent the heat conducting tube 4 from being pulled out of the bracket 24 together with the aerosol generating product 1; and in the process of inserting the aerosol generating product 1, the second stopper 26 can be used to stop the moving path of the heat conducting tube 4, and the wall heat conducting tube 4 is excessively squeezed by the aerosol generating product 1, resulting in deformation of the bottom 7, which affects the air intake or the insertion of the heating element 15.

[0067] Specifically, the end of the annular main body 6 away from the bottom 7 forms a flange 27, and the cross-sectional area of ​​the flange 27 is larger than the cross-sectional area of ​​other parts of the annular main body 6. Fig.13 ,yes Figure 3 The aerosol generating device 2 further comprises: a fixing member 28 and a cover 29 , wherein the fixing member 28 comprises a sleeve portion 30 , which is sleeved in the accommodating cavity 3 , and the inner wall surface of the sleeve portion 30 has a step portion, and the cross-sectional area of ​​the opening defined by the step portion is smaller than the cross-sectional area of ​​the flange portion 27 .

[0068] The cover 29 is disposed at the opening of the accommodating cavity 3, and the cover 29 has an insertion opening, which is disposed corresponding to the accommodating cavity 5, and the cross-sectional area of ​​the insertion opening is smaller than the maximum cross-sectional area S2 of the main body. Figures 7 and 8 , is a schematic diagram of the process of pulling the heat conducting tube out of the aerosol generating device along with the aerosol generating product. When the aerosol generating product 1 is pulled out, the heat conducting tube 4 moves upward along with the aerosol generating product 1, the flange portion 27 of the heat conducting tube 4 is located between the sleeve portion 30 and the cover body 29 and moves upward, the flange portion 27 of the heat conducting tube 4 is blocked by the cover body 29 and no longer moves, and the aerosol generating product 1 is pulled out of the receiving chamber 5. When the aerosol generating product 1 is inserted into the accommodating cavity 3, the aerosol generating product 1 encounters the raised structure 8 of the heat conducting tube 4, and the heat conducting tube 4 moves downward with the aerosol generating product 1. The flange portion 27 of the heat conducting tube 4 is located between the sleeve portion 30 and the cover body 29 and moves downward until the flange portion 27 of the heat conducting tube 4 abuts against the step portion of the sleeve portion 30, and the bottom portion 7 of the heat conducting tube 4 abuts against the bottom wall of the accommodating cavity 3. The aerosol generating product 1 is inserted into the heat conducting tube 4, and the heating element 15 of the aerosol generating device 2 is inserted into the matrix segment 13 of the aerosol generating product 1 through the insertion hole 14 of the bottom portion 7 of the heat conducting tube 4.

[0069] Of course, the aerosol generating device 2 also includes components such as a power supply, a circuit board, a seal, and a fixing 28. The specific structure and function of these components are the same or similar to the specific structure and function of the relevant components in the existing aerosol generating system, and can achieve the same or similar technical effects. For details, please refer to the prior art.

[0070] The aerosol generating device 2 provided in the embodiment of the present application includes: a bracket 24 having a receiving cavity 3; a heat conducting tube 4, which is arranged in the receiving cavity 3, and the heat conducting tube 4 includes an annular main body 6 and a bottom 7, the annular main body 6 and the bottom 7 cooperate to form a receiving cavity 5, and the receiving cavity 5 is used to receive the aerosol generating product 1; wherein the thermal conductivity of the heat conducting tube 4 is better than that of the bracket 24; a heating element 15, which is arranged on the bottom wall of the receiving cavity 3 and is inserted into the receiving cavity 5 through the bottom 7. Among them, by making the thermal conductivity of the heat pipe 4 better than the thermal conductivity of the bracket 24, during the heating process, the heat of the heating element 15 will be more transferred to the heat pipe 4; in the later stage of heating, the heat pipe 4 has a higher temperature, so that in the later stage of heating, the heat pipe 4 can be used as an auxiliary heat source to perform circumferential heating on the aerosol generating product 1, so as to optimize the problem of the attenuation of the aerosol generation amount in the later stage of heating, and effectively increase the aerosol generation amount in the later stage of heating; at the same time, there is no need to add additional heat sources, nor to increase temperature control, which will not increase costs, can reduce energy consumption, and improve energy utilization.

[0071] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An aerosol generating device, characterized in that: include: A bracket having a receiving cavity; A heat-conducting pipe is disposed in the accommodating cavity, and the heat-conducting pipe comprises an annular main body and a bottom, wherein the annular main body cooperates with the bottom to form a receiving cavity, and the receiving cavity is used to receive the aerosol generating product; wherein the heat-conducting performance of the heat-conducting pipe is better than the heat-conducting performance of the bracket; The heating element is arranged on the bottom wall of the accommodating cavity and is inserted into the accommodating cavity through the bottom.

2. The aerosol generating device according to claim 1, characterized in that: The inner wall surface of the annular main body has a convex structure, and the convex structure is used to abut against the outer side surface of the aerosol generating product, so that the heat conducting pipe can move synchronously with the aerosol generating product.

3. The aerosol generating device according to claim 2, characterized in that: The annular main body includes a first tube segment and a second tube segment connected to each other; the first tube segment is used to accommodate the matrix segment of the aerosol generating product, and the second tube segment is used to accommodate the cooling segment of the aerosol generating product; a plurality of the protruding structures are arranged at intervals on the inner surface of the second tube segment.

4. The aerosol generating device according to claim 1, characterized in that: The annular main body comprises a first tube segment and a second tube segment connected to each other; the first tube segment is used to accommodate the matrix segment of the aerosol generating product, and the second tube segment is used to accommodate the cooling segment of the aerosol generating product; A plurality of through holes are provided at the connection between the second pipe segment and the first pipe segment; or a plurality of through holes are provided at a position of the second pipe segment close to the first pipe segment; and the plurality of through holes are arranged at intervals along the circumferential direction of the heat conducting pipe.

5. The aerosol generating device according to claim 1, characterized in that: Also includes: The bottom portion has an insertion hole, and the heating element is in contact with a hole wall of the insertion hole.

6. The aerosol generating device according to claim 5, characterized in that: The bottom includes an annular bottom wall and an extension tube, wherein the extension tube extends from the inner edge of the annular bottom wall in a direction away from the accommodating cavity and cooperates with the inner edge of the annular bottom wall to form the insertion hole; the heating element contacts the inner surface of the extension tube.

7. The aerosol generating device according to claim 6, characterized in that: The side wall of the extension tube has an air inlet, the heating element is spaced apart from part of the hole wall of the insertion hole and cooperates with an air inlet channel, and the air inlet is connected to the receiving cavity through the air inlet channel; wherein the connection between the annular bottom wall and the extension tube is inclined in a direction away from the central axis of the insertion hole.

8. The aerosol generating device according to claim 6, characterized in that: The bottom wall further includes an annular extension wall, and the annular extension wall extends from one end of the extension tube away from the annular bottom wall to the periphery away from the central axis of the insertion hole.

9. The aerosol generating device according to claim 8, characterized in that: A plurality of supporting structures are provided on a surface of the annular extension wall on one side away from the annular main body. The plurality of supporting structures are arranged at intervals, and the heat conducting pipe abuts against the bottom wall of the accommodating cavity through the plurality of supporting structures.

10. The aerosol generating device according to claim 1, characterized in that The annular main body comprises a first tube segment and a second tube segment connected to each other; the first tube segment is used to accommodate the matrix segment of the aerosol generating product, and the second tube segment is used to accommodate the cooling segment of the aerosol generating product; The heat-conducting pipe also includes an insulation pipe; the insulation pipe is sleeved on the outside of the first pipe section, and both ends of the insulation pipe are respectively sealed and connected to the first pipe section, and the other parts of the insulation pipe are spaced apart from the outer wall of the first pipe section.

11. The aerosol generating device according to claim 10, characterized in that: A heat reflecting layer is provided on a surface of the heat insulation pipe on one side facing the first pipe section.

12. The aerosol generating device according to claim 2, characterized in that: A first limiting member and a second limiting member are provided in the accommodating cavity, and the first limiting member and the second limiting member are arranged at intervals along the axial direction of the accommodating cavity; The outer wall surface of the annular main body has a flange portion, and the flange portion is located between the first limiting member and the second limiting member, and can move between the first limiting member and the second limiting member along the axial direction of the accommodating cavity.

13. The aerosol generating device according to claim 1, characterized in that: The heat conducting pipe is a metal pipe.

14. An aerosol generating system, characterized in that: include: An aerosol generating device, which is an aerosol generating device as described in claims 1 to 13; The aerosol generating product is contained in the aerosol generating device, and the aerosol generating device is used to heat and atomize the aerosol generating product to form an aerosol.

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