Aerosol generating device and aerosol generating system

Abstract

The invention provides an aerosol generating device and an aerosol generating system. The aerosol generating system comprises an aerosol generating product and the aerosol generating device, the aerosol generating device comprises an outer sleeve and an accommodating tube; a cavity opening is formed in the top of the outer sleeve; the accommodating pipe is inserted into the outer sleeve through the cavity opening; the accommodating pipe is provided with a first end and a second end which are oppositely arranged; the first end is provided with a first socket for inserting an aerosol generating product; the accommodating pipe is used for accommodating an aerosol generating product; the aerosol generating product is provided with a near lip end and a far lip end which are oppositely arranged; and the second end is in sealing connection with the far lip end. The aerosol can be blocked through the containing pipe, so that the amount of the aerosol making contact with the wall face of the outer sleeve is reduced, and the problem that the outer sleeve is difficult to clean due to the fact that aerosol condensate is deposited on the wall face of the outer sleeve can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of aerosol generation, and more specifically, relates to an aerosol generating device and an aerosol generating system. Background Art

[0002] Aerosol generating systems generally consist of an aerosol generating device and an aerosol generating product. The aerosol generating device is used to accommodate the aerosol generating product and heat the aerosol generating product to generate an aerosol. Aerosol generating systems can be applied to different fields, such as medical atomization, cosmetic atomization, and leisure inhalation.

[0003] Once the aerosol generating device starts heating the aerosol generating product, it will continue to generate aerosol. If the generated aerosol is not inhaled by the user in time, it will diffuse outward into the outer sleeve of the aerosol generating device used to accommodate the aerosol generating product. When the aerosol encounters the overcooled wall of the outer sleeve, aerosol condensation will occur, and the condensed liquid will adhere to the wall of the outer sleeve, making it difficult to clean the aerosol generating device, affecting the performance of the aerosol device and the user experience. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an aerosol generating device and an aerosol generating system to solve the technical problem in the prior art that the outer sleeve wall of the aerosol generating device is difficult to clean due to aerosol condensation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an aerosol generating device, including an outer sleeve and a receiving tube; the top end of the outer sleeve has a cavity; the receiving tube is inserted into the outer sleeve via the cavity; the receiving tube has a first end and a second end that are relatively arranged; the first end is formed with a first socket for inserting an aerosol generating product; the receiving tube is used to accommodate the aerosol generating product; the aerosol generating product has a proximal lip end and a distal lip end that are relatively arranged; the second end is configured to be sealed and connected to the distal lip end.

[0006] In a possible design, a second socket is formed at the second end of the receiving tube; the second socket is configured to be interference-fitted with the distal lip end.

[0007] In a possible design, at least a portion of the receiving tube close to the second end is gradually retracted from the first end toward the second end.

[0008] In a possible design, an airflow cavity is formed between the outer wall of the receiving tube and the inner wall of the outer sleeve, a connecting channel is formed between the bottom end of the receiving tube and the bottom wall of the outer sleeve, and the connecting channel is connected to the airflow cavity; a vent is formed on the outer wall of the receiving tube; the vent connects the receiving tube and the airflow cavity; a second socket is formed at the second end of the receiving tube; the distal lip end extends into the connecting channel through the second socket.

[0009] In a possible design, assuming that there is a first distance a between the first end and the second end, and a second distance b between the first end and the vent, the ratio of b / a is between 1 / 2 and 3 / 4.

[0010] In a possible design, the aerosol generating device further includes a heating needle; the heating needle is configured to be inserted into the distal lip end; and the vent is directly opposite to the area where the heating needle is located along the axial direction of the receiving tube.

[0011] In one possible design, the number of the vents ranges from 2 to 10;

[0012] The opening area of ​​the vent is 2 mm 2 -10mm 2 .

[0013] In a possible design, the periphery of the first end extends outward to cover the periphery of the top end of the outer sleeve to prevent aerosol from flowing into the outer sleeve from between the first end and the top end of the outer sleeve.

[0014] In a possible design, the thickness of at least a portion of the receiving tube close to the first end is gradually increased from the second end toward the first end.

[0015] The beneficial effect of the aerosol generating device provided by the present application is that the aerosol generating device provided by the embodiment of the present application, by containing the aerosol generating product in the containing tube, and the second end of the containing tube is sealed and connected to the distal lip end of the aerosol generating product, that is, the aerosol generating product can be separated from the outer sleeve by the containing tube, so as to prevent the aerosol generated by the aerosol generating product from diffusing outward into the outer sleeve, and at the same time, the aerosol is also prevented from flowing into the outer sleeve from the gap between the second end of the containing tube and the distal lip end of the aerosol generating product. Then, when the aerosol generated by the aerosol generating product is not sucked in time, the aerosol rarely enters the outer sleeve due to the obstruction of the containing tube, and the amount of aerosol is reduced, thereby reducing the amount of aerosol condensation, and alleviating the problem of difficulty in cleaning the outer sleeve caused by the deposition of aerosol condensate on the wall of the outer sleeve.

[0016] On the other hand, the present application also provides an aerosol generating system, including an aerosol generating product and the above-mentioned aerosol generating device.

[0017] The beneficial effect of the aerosol generating system provided in the present application is that the aerosol generating system provided in the embodiment of the present application, through the setting of the above-mentioned aerosol generating device, makes the aerosol generating system easy to clean and increases the service life of the aerosol generating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an aerosol generating system provided in an embodiment of the present application;

[0020] Figure 2 A partially exploded schematic diagram of an aerosol generating system provided in an embodiment of the present application;

[0021] Figure 3 A schematic longitudinal cross-sectional view of an aerosol generating system provided in an embodiment of the present application;

[0022] Figure 4 for Figure 3 A schematic diagram of the connection structure of the outer sleeve, the receiving tube and the aerosol generating product in the aerosol generating system;

[0023] Figure 5 for Figure 3 Schematic diagram of the connection structure of the outer sleeve and the receiving tube in the aerosol generating system;

[0024] Figure 6 for Figure 3 Schematic diagram of the three-dimensional structure of the receiving tube in the aerosol generating system.

[0025] Among them, the reference numerals in the figure are:

[0026] 1000, aerosol generating device; 100, outer sleeve; 110, cavity opening; 120, support block; 200, receiving tube; 210, first end; 220, second end; 230, first socket; 240, second socket; 250, vent; 260, convex rib; 270, receiving portion; 280, shielding portion; 300, air flow cavity; 400, heating assembly; 410, heating needle; 2000, aerosol generating product; 2100, matrix section; 2200, hollow section; 2300, cooling section; 2400, filter section. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Once the aerosol generating device starts heating the aerosol generating product, it will continue to generate aerosol. If the generated aerosol is not inhaled by the user in time, it will diffuse outward into the outer sleeve of the aerosol generating device used to accommodate the aerosol generating product. When the aerosol encounters the overcooled wall of the outer sleeve, aerosol condensation will occur, and the condensed liquid will adhere to the wall of the outer sleeve, making it difficult to clean the aerosol generating device and affecting the user experience.

[0032] In order to solve the above problems, the inventors of the present application have finally developed an aerosol generating system after a long period of research. By setting a receiving tube 200 in the outer sleeve 100 of the aerosol generating device 1000, the receiving tube 200 is used to accommodate the aerosol generating product 2000, and the second end 220 of the receiving tube 200 is sealed and connected to the distal lip end of the aerosol generating product 2000, the probability of aerosol flowing into the outer sleeve 100 can be greatly reduced, and the probability of condensation liquid being generated on the wall of the outer sleeve 100 is reduced, thereby alleviating the problem of difficulty in cleaning the outer sleeve 100.

[0033] See also Figure 1 and Figure 2 The present application provides an aerosol generating system, including an aerosol generating device 1000 and an aerosol generating product 2000. The aerosol generating product 2000 is partially accommodated in the aerosol generating device 1000. The aerosol generating device 1000 is used to heat and bake the aerosol generating product 2000 to generate aerosol.

[0034] See also Figures 3 to 5 The aerosol generating device 1000 includes an outer sleeve 100 and a receiving tube 200; the outer sleeve 100 has a cavity 110 at the top; the receiving tube 200 is inserted into the outer sleeve 100 via the cavity 110; the receiving tube 200 has a first end 210 and a second end 220 that are arranged oppositely; the first end 210 is formed with a first plug 230 for inserting the aerosol generating product 2000; the receiving tube 200 is used to accommodate the aerosol generating product 2000; the aerosol generating product 2000 has a proximal lip end and a distal lip end that are arranged oppositely; the second end 220 is arranged to be sealed and connected with the distal lip end. The first end 210 of the receiving tube 200 is located at the top end of the receiving tube 200, and the second end 220 of the receiving tube 200 is located at the bottom end of the receiving tube 200.

[0035] During assembly, the receiving tube 200 is inserted into the outer sleeve 100 through the cavity 110. During use, the aerosol generating article 2000 is inserted into the receiving tube 200 from the first end 210 of the receiving tube 200, and the second end 220 of the receiving tube 200 is sealed and connected with the distal lip end of the aerosol generating article 2000.

[0036] In the prior art, since the aerosol generating product 2000 is directly inserted into the outer tube 100 from the cavity 110 at the top of the outer tube 100 from top to bottom, when the aerosol generated by the aerosol generating product 2000 is not sucked out in time, the aerosol will diffuse outward from the aerosol generating product 2000 into the outer tube 100, and the aerosol will condense when the aerosol encounters the supercooled wall of the outer tube, and the condensed liquid will adhere to the wall of the outer tube.

[0037] In the embodiment of the present application, since the aerosol generating product 2000 is contained in the containing tube 200, and the second end 220 of the containing tube 200 is sealed and connected to the distal lip end of the aerosol generating product 2000, the aerosol generating product 2000 can be separated from the outer tube 100 by the containing tube 200, so as to prevent the aerosol generated by the aerosol generating product 2000 from diffusing outward into the outer tube 100, and also prevent the aerosol from flowing into the outer tube 100 from the gap between the second end 220 of the containing tube 200 and the distal lip end of the aerosol generating product 2000. When the aerosol generated by the aerosol generating product 2000 is not sucked in time, the aerosol rarely enters the outer tube 100 due to the obstruction of the containing tube 200, and the amount of aerosol is reduced, thereby reducing the amount of aerosol condensation, and alleviating the problem that the aerosol condensate is deposited on the wall surface of the outer tube 100 and causes the outer tube 100 to be difficult to clean.

[0038] At the same time, the containing tube 200 is located between the aerosol generating product 2000 and the outer sleeve 100. The containing tube 200 contacts the heated aerosol generating product 2000, so that the wall temperature of the containing tube 200 is higher than the wall temperature of the outer sleeve 100. Therefore, even if aerosol flows into the containing tube 200, the condensation liquid caused by it will be reduced accordingly.

[0039] The gap between the wall of the containment tube 200 and the aerosol generating product 2000 is smaller than the gap between the wall of the containment tube 200 and the wall of the outer sleeve 100, so that most of the heat is transferred to the containment tube 200. The wall temperature of the containment tube 200 is higher than the wall temperature of the outer sleeve 100. Even if aerosol flows into the containment tube 200, the condensation caused by it will be reduced accordingly.

[0040] In addition, the provision of the receiving tube 200 is equivalent to forming a protective barrier on the surface of the aerosol generating product 2000, so that the aerosol and condensate in the outer sleeve 100 cannot contact the surface of the aerosol generating product 2000, thereby achieving the effect of improving the condensate on the surface of the aerosol generating product 2000.

[0041] In one embodiment, see Figure 3 and Figure 4 A second socket 240 is formed at the second end 220 of the receiving tube 200. When the aerosol generating product 2000 is heated, external airflow is required to enter the aerosol generating product 2000 from the distal lip end of the aerosol generating product 2000 to bring out the aerosol generated in the aerosol generating product 2000. Therefore, a second socket 240 is required to be formed at the second end 220 of the receiving tube 200 to facilitate external airflow to enter the aerosol generating product 2000 from the second socket 240 via the distal lip end.

[0042] In one embodiment, see Figure 4 The second socket 240 is configured to be plugged with the distal lip end through interference fit. That is, the inner diameter of the second socket 240 of the receiving tube 200 is configured to be smaller than the outer diameter of the aerosol generating product 2000. After the aerosol generating product 2000 is inserted into the receiving tube 200, the aerosol generating matrix in the distal lip end is subjected to pressure, and the aerosol generating matrix changes from loose to compact, and the porosity is reduced, so that the aerosol generated in the aerosol generating product 2000 is not easy to enter the outer sleeve 100 through the compact aerosol generating matrix at the distal lip end, thereby achieving the purpose of reducing the condensate in the outer sleeve 100.

[0043] At the same time, the receiving tube 200 exerts a circumferential force on the aerosol generating product 2000, thereby increasing the friction between the aerosol generating product 2000 and the receiving tube 200, which is conducive to taking out the used aerosol generating product 2000.

[0044] In addition, in other embodiments of the present application, the second socket 240 may also be sealed and connected to the distal lip end via a seal, which is not the only limitation herein.

[0045] In one embodiment, the outer diameter of the distal lip end is set to 7.2 mm, and the inner diameter of the second socket 240 of the receiving tube 200 is set to 6.7-7.2 mm, so that the distal lip end can be pressed by the second socket 240 of the receiving tube 200. It can be understood that in other embodiments of the present application, the outer diameter of the distal lip end can also be other values, such as 6.8 mm, 7.0 mm, 7.4 mm or 7.6 mm, and the inner diameter of the second socket 240 can also be changed accordingly, as long as the second socket 240 and the distal lip end are in an interference fit.

[0046] In one embodiment, the cross section of the second socket 240 is circular; the cross section of the distal lip end is circular; the second socket 240 and the distal lip end form an interference fit. It can be understood that in other embodiments of the present application, the cross section of the second socket 240 can also be elliptical, and the cross section of the distal lip end can also be elliptical. In addition, in other embodiments, when the cross section of the distal lip end is designed to be other regular or irregular shapes, the cross section of the second socket 240 can also be modified accordingly, which is not the only limitation here.

[0047] In one embodiment, see Figure 4 and Figure 5, at least the portion of the receiving tube 200 close to the second end 220 is gradually retracted from the first end 210 to the second end 220. That is, the diameter of the portion of the receiving tube 200 close to the second end 220 is gradually reduced from the first end 210 to the second end 220. Under the premise of ensuring the interference fit between the second end 220 of the receiving tube 200 and the aerosol generating product 2000, the distance between the outer wall of the receiving tube 200 and the inner wall of the outer sleeve 100 can be gradually increased to form the airflow cavity 300 to meet the airflow flow.

[0048] In one embodiment, see Figures 3 to 5 An airflow cavity 300 is formed between the outer wall of the receiving tube 200 and the inner wall of the outer sleeve 100, and a connecting channel is formed between the bottom end of the receiving tube 200 and the bottom wall of the outer sleeve 100, and the connecting channel is connected to the airflow cavity 300; a vent 250 is formed on the outer wall of the receiving tube 200; the vent 250 connects the receiving tube 200 and the airflow cavity 300; a second socket 240 is formed at the second end 220 of the receiving tube 200; the far lip end extends into the connecting channel through the second socket 240. The provision of the vent 250 enables the receiving tube 200 and the airflow cavity 300 to be connected to each other.

[0049] See also Figure 4 and Figure 5 During the inhalation process, the external airflow enters the receiving tube 200 through the first socket 230, and enters the airflow cavity 300 through the vent 250, and the connecting channel is connected to the airflow cavity 300. When the distal lip end extends into the connecting channel, the airflow in the airflow cavity 300 can enter the aerosol generating product 2000 from the distal lip end through the connecting channel, so that the aerosol generated by heating in the aerosol generating product 2000 can be carried out. It can be understood that in other embodiments of the present application, the external airflow may not enter the aerosol generating product 2000 through the airflow cavity 300, but directly introduce it into the aerosol generating product 2000 through the channel below the outer sleeve 100, and then the vent 250 may not be provided, and this is not the only limitation here.

[0050] In addition, although the aerosol can enter the airflow cavity 300 through the vent 250, the probability of the aerosol flowing into the airflow cavity 300 can be greatly reduced due to the obstruction of the containment tube 200, thereby reducing the formation of condensation on the wall surface of the outer sleeve 100 and the wall surface of the containment tube 200.

[0051] In one embodiment, see Figures 4 to 6, assuming that there is a first distance a between the first end 210 and the second end 220; and a second distance b between the first end 210 and the vent 250; then the ratio of b / a is between 1 / 2 and 3 / 4. In this embodiment, since at least the portion of the receiving tube 200 close to the second end 220 is gradually retracted from the first end 210 to the second end 220, the inner wall of the portion of the receiving tube 200 close to the second end 220 is closely attached to the aerosol generating product 2000. If the vent 250 is disposed close to the second end 220, the air flow resistance will be large and the air flow will not be smooth. In addition, since at least the thickness of the portion of the receiving tube 200 close to the first end 210 is gradually increased from the second end 220 to the first end 210, the position of the receiving tube 200 close to the first end 210 is closely attached to the outer sleeve 100. If the vent 250 is disposed close to the first end 210, the air flow resistance will be large and the air flow will not be smooth. According to the above analysis, setting the vent 250 approximately in the middle of the axial direction of the receiving tube 200 can ensure smooth airflow. In addition, according to the actual design of the receiving tube 200, setting the ratio of b / a between 1 / 2 and 3 / 4 can ensure good fluidity of the airflow.

[0052] In one embodiment, see Figure 4 The aerosol generating device 1000 further includes a heating needle 410; the heating needle 410 is arranged to be inserted into the distal lip end; the vent 250 is directly opposite to the area where the heating needle 410 is located along the axial direction of the receiving tube 200. The heating needle 410 is used to heat the distal lip end, that is, the vent 250 corresponds to the high temperature zone of the aerosol generating product 2000, so that the external airflow or aerosol in the receiving tube 200 will be preheated by the high temperature zone of the aerosol generating product 2000 before entering the outer sleeve 100 through the vent 250, so that the temperature of the aerosol or airflow entering the outer sleeve 100 is increased, thereby increasing the overall temperature in the outer sleeve 100, and the formation of condensate is related to the temperature in the outer sleeve 100. The lower the temperature in the outer sleeve 100, the easier it is to generate condensate, and the higher the temperature in the outer sleeve 100, the smaller the amount of condensate in the outer sleeve 100.

[0053] In one embodiment, see Figure 4The aerosol generating product 2000 includes a substrate segment 2100, a hollow segment 2200, a cooling segment 2300 and a filter segment 2400. The hollow segment 2200 and the cooling segment 2300 are arranged between the substrate segment 2100 and the filter segment 2400. The hollow segment 2200 is located at one end of the cooling segment 2300 close to the substrate segment 2100. The substrate segment 2100 of the aerosol generating product 2000 stores an aerosol generating substrate, which is a solid substrate of plant leaves with a specific aroma and can generate aerosol under heating conditions; the form of the aerosol generating substrate is not limited to an ordered solid aerosol generating substrate, a disordered solid aerosol generating substrate and a particle solid aerosol generating substrate. The aerosol generating device 1000 heats and bakes the aerosol generating substrate in the substrate segment 2100 of the aerosol generating product 2000 when powered on to generate aerosol. The aerosol generated by heating the aerosol generating substrate is gathered in the hollow section 2200 , cooled in the cooling section 2300 , and finally flows through the filter section 2400 to be inhaled by the user.

[0054] It should be noted that the above-mentioned hollow section 2200 and cooling section 2300 are optional structures. The aerosol generating product 2000 only has the matrix section 2100 as a necessary structure, and the matrix section 2100 is used to generate aerosol for the user to inhale. In other embodiments, the aerosol generating product 2000 may include a matrix section 2100 and a filter section 2400; or, the aerosol generating product 2000 may include a matrix section 2100, a hollow section 2200 and a filter section 2400; or, the aerosol generating product 2000 includes the matrix section 2100, the hollow section 2200, the cooling section 2300, and the filter section 2400, and also includes other structures that can improve the user experience.

[0055] During installation, the matrix segment 2100 of the aerosol generating product 2000 is extended into the connecting channel through the second socket 240, so that the matrix segment 2100 and the second socket 240 form an interference fit, and the vent 250 of the receiving tube 200 is set corresponding to the matrix segment 2100, that is, the vent 250 corresponds to the high temperature zone of the aerosol generating product 2000, then the external airflow or aerosol in the receiving tube 200 will be preheated by the high temperature zone of the aerosol generating product 2000 before entering the outer sleeve 100 through the vent 250.

[0056] It should be noted that, in this embodiment, the distal lip end of the aerosol generating article 2000 corresponds to the matrix segment 2100. It can be understood that in other embodiments of the present application, when the aerosol generating article 2000 includes a plug, the distal lip end corresponds to the plug, and the upper part of the plug is the matrix segment 2100. The plug can generally be breathable fiber or cotton, which can absorb condensation.

[0057] In one embodiment, see Figures 4 to 6 , the number of the vents 250 ranges from 2 to 10, for example, the number of the vents 250 may be 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc. In the embodiment of the present application, by limiting the number range of the vents 250, the airflow resistance can be adjusted according to the opening size of the vents 250 and the gap between the receiving tube 200 and the aerosol generating article 2000 to ensure smooth airflow.

[0058] In one embodiment, see Figures 4 to 6 , the opening area of ​​the vent 250 is 2mm 2 -10mm 2 For example, the opening area of ​​the vent 250 is 2 mm 2 , 3mm 2 , 4mm 2 , 5mm 2 , 6mm 2 , 7mm 2 , 8mm 2 , 9mm 2 or 10mm 2 In the embodiment of the present application, by limiting the opening area of ​​the vents 250 , the airflow resistance can be adjusted according to the number of the vents 250 and the gap between the receiving tube 200 and the aerosol generating article 2000 to ensure smooth airflow.

[0059] In one embodiment, see Figure 6 The vent 250 may be circular. It is understandable that in other embodiments of the present application, the vent 250 may also be elliptical or waist-shaped.

[0060] In one embodiment, see Figure 5 A plurality of convex ribs 260 are convexly provided on the inner wall of the receiving tube 200, and each convex rib 260 is sequentially spaced along the circumference of the receiving tube 200, and each convex rib 260 extends along the axial direction of the receiving tube 200. Each convex rib 260 is used to abut against the outer wall of the aerosol generating product 2000 to support and limit the aerosol generating product 2000.

[0061] The convex rib 260 has different protrusion heights along the axial direction of the receiving tube 200. Along the axial direction of the receiving tube 200, the protrusion height of the convex rib 260 gradually increases from the second end 220 to the first end 210. In this embodiment, by protruding the convex rib 260 on the inner wall of the receiving tube 200, even if the inner diameter of the receiving tube 200 gradually decreases from the second end 220 to the first end 210, resulting in a gap between the receiving tube 200 and the aerosol generating article 2000, the convex rib 260 can fill the gap, so that the aerosol generating article 2000 with a constant diameter can be stably supported. In addition, the external airflow or aerosol entering the receiving tube 200 can enter the vent 250 from the gap between adjacent convex ribs 260.

[0062] In one embodiment, see Figure 4 and Figure 6 The periphery of the first end 210 extends outward to cover the periphery of the top end of the outer sleeve 100 to prevent the aerosol from flowing into the outer sleeve 100 from between the first end 210 and the top end of the outer sleeve 100, thereby preventing the aerosol from flowing into the outer sleeve 100 from between the first end 210 and the top end of the outer sleeve 100.

[0063] In one embodiment, see Figure 4 and Figure 6 The receiving tube 200 includes a receiving portion 270 and a shielding portion 280. The receiving portion 270 is cup-shaped and is inserted into the outer tube 100 from the cavity 110. The shielding portion 280 extends outward from the periphery of the receiving portion 270, and the shielding portion 280 shields the outer periphery of the top of the outer tube 100, thereby reducing the aerosol from flowing into the outer tube 100 from the gap between the outer tube 100 and the receiving portion 270, thereby reducing the amount of aerosol condensation in the outer tube 100.

[0064] In one embodiment, the shielding portion 280 of the receiving tube 200 is fixedly connected to the housing of the aerosol generating device 1000. Specifically, it can be a snap connection or a fastener locking connection.

[0065] In one embodiment, see Figure 4 and Figure 5 , the thickness of at least the portion of the receiving tube 200 close to the first end 210 is gradually increased from the second end 220 to the first end 210. In this way, the gap between the outer wall of the receiving tube 200 close to the first end 210 and the inner wall of the outer sleeve 100 can be made smaller, and even a sealed connection can be formed, thereby reducing the possibility of the aerosol in the outer sleeve 100 diffusing outward, thereby preventing the condensate from forming on the surface of the aerosol generating device 1000, which affects the user experience.

[0066] In one embodiment, see Figure 3The aerosol generating device 1000 further includes a heating component 400, and the aerosol generating product 2000 is heated by the heating component 400 so that the aerosol generating product 2000 generates aerosol.

[0067] In one embodiment, see Figure 3 and Figure 4 The heating assembly 400 includes a heating needle 410, which is inserted into the aerosol generating article 2000 from the bottom of the outer sleeve 100 through the second socket 240. Specifically, the heating needle 410 is inserted into the distal lip end of the aerosol generating article 2000 to heat the aerosol generating substrate in the distal lip end to generate aerosol.

[0068] In one embodiment, see Figure 4 and Figure 5 At least two support blocks 120 are convexly disposed on the bottom wall of the outer sleeve 100, and the support blocks 120 are used to raise the distal lip end. The support blocks 120 are separated by the above-mentioned connecting channels, and the gas in the outer sleeve 100 flows to the distal lip end through the connecting channels, thereby taking away the aerosol generated by the aerosol generating product 2000. In addition, the setting of the support blocks 120 can also limit and support the insertion of the aerosol generating product 2000, thereby ensuring the assembly stability of the aerosol generating product 2000.

[0069] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An aerosol generating device, characterized in that: It comprises an outer sleeve and a receiving tube; the top end of the outer sleeve has a cavity; the receiving tube is inserted into the outer sleeve via the cavity; the receiving tube has a first end and a second end which are arranged oppositely; the first end is formed with a first insertion opening for inserting an aerosol generating product; the receiving tube is used to accommodate the aerosol generating product; the aerosol generating product has a proximal lip end and a distal lip end which are arranged oppositely; the second end is arranged to be sealed and connected with the distal lip end.

2. The aerosol generating device according to claim 1, characterized in that The second end of the receiving tube is formed with a second socket; the second socket is configured to be interference-fitted with the distal lip end.

3. The aerosol generating device according to claim 2, characterized in that At least a portion of the receiving tube close to the second end is gradually retracted from the first end toward the second end.

4. The aerosol generating device according to claim 2, characterized in that: An airflow cavity is formed between the outer wall of the receiving tube and the inner wall of the outer sleeve, a connecting channel is formed between the bottom end of the receiving tube and the bottom wall of the outer sleeve, and the connecting channel is connected to the airflow cavity; a vent is formed on the outer wall of the receiving tube; the vent connects the receiving tube and the airflow cavity; the distal lip end extends into the connecting channel via the second socket.

5. The aerosol generating device according to claim 4, characterized in that There is a first distance a between the first end and the second end; there is a second distance b between the first end and the vent; and the ratio of b / a is between 1 / 2 and 3 / 4.

6. The aerosol generating device according to claim 4, characterized in that The aerosol generating device further comprises a heating needle; the heating needle is arranged to be inserted into the distal lip end; the vent is directly opposite to the area where the heating needle is located along the axial direction of the receiving tube.

7. The aerosol generating device according to claim 4, characterized in that The number of the vents ranges from 2 to 10; The opening area of ​​the vent is 2 mm 2 -10mm 2 .

8. The aerosol generating device according to any one of claims 1 to 7, characterized in that: The periphery of the first end extends outward to cover the periphery of the top end of the outer tube, so as to prevent aerosol from flowing into the outer tube from between the first end and the top end of the outer tube.

9. The aerosol generating device according to any one of claims 1 to 7, characterized in that: The thickness of at least a portion of the receiving tube close to the first end is gradually increased from the second end toward the first end.

10. An aerosol generating system, characterized in that: It comprises an aerosol generating article and an aerosol generating device as claimed in any one of claims 1 to 9.

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