Aerosol generation device

Abstract

The application discloses an aerosol generating device, comprising: a receiver and a heating assembly, the receiver is provided with a receiving cavity for accommodating an aerosol generating substrate, and an inner wall of the receiving cavity is provided with a first air passage; one end of the heating assembly is inserted into the receiving cavity to be inserted into the aerosol generating substrate and heat the aerosol generating substrate; wherein the first air passage comprises a heat preservation section and a cooling section which are in communication with each other, the heat preservation section is arranged adjacent to the bottom of the receiving cavity relative to the cooling section, and in the axial direction of the receiving cavity, the cross-sectional area of the heat preservation section is greater than that of the cooling section, and the first air passage is used for guiding the gas outside the receiver into the heating assembly through the cooling section and the heat preservation section. By setting the heat preservation section and the cooling section of the air passage, the aerosol atomization efficiency is improved, and the problem of high aerosol inlet temperature affecting user experience is solved.

Description

Technical Field

[0001] This application relates to the field of atomization technology, specifically to an aerosol generating device. Background Technology

[0002] Airways are the channels through which air flows within aerosol generating devices and aerosol generating substrates. Current common airway designs only consider the airway's location and suction resistance, neglecting its other functions. This means that airways also have multiple impacts on the amount of aerosol generated in the aerosol generating device, as well as on aspects like the aerosol's temperature and flavor profile, reducing aerosol generation efficiency and affecting the user experience. Summary of the Invention

[0003] In view of this, this application provides an aerosol generating device to solve the problems of low aerosol generation efficiency and negative impact on user experience in the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution provided in this application is as follows: An aerosol generating device is provided, comprising: a receiver and a heating component. The receiver has a receiving cavity for receiving an aerosol generating substrate, and the inner wall of the receiving cavity has a first air passage. One end of the heating component is inserted into the receiving cavity for inserting into the aerosol generating substrate and heating the aerosol generating substrate. The first air passage includes a heat-insulating section and a cooling section that are interconnected. The heat-insulating section is disposed near the bottom of the receiving cavity relative to the cooling section. In the axial direction of the receiving cavity, the cross-sectional area of ​​the heat-insulating section is larger than the cross-sectional area of ​​the cooling section. The first air passage is used to introduce gas from outside the receiver through the cooling section and the heat-insulating section into the heating component.

[0005] The heating component has a second air passage on its end face facing the receiving cavity. The first air passage is connected to the second air passage so that gas outside the receiver can enter the aerosol generating matrix through the first air passage and the second air passage.

[0006] The heating component includes a base and a heating element disposed on the base. The base is disposed at one end of the receiving cavity, and the end face of the base facing the receiving cavity is provided with a second air passage. The heating element is used to be inserted into the aerosol generating matrix.

[0007] The second air passage includes at least one air inlet groove that extends from the edge of the base toward the heating element.

[0008] The second air duct further includes a converging groove, which is arranged around the heating element. The air inlet groove communicates with the converging groove, and the converging groove can be covered by the aerosol generating matrix.

[0009] The number of air intake slots is multiple, and the multiple air intake slots are arranged radially around the periphery of the converging slot.

[0010] The sidewalls of the air intake groove are of equal width, or gradually narrow from the edge of the base to the converging groove.

[0011] The receiver includes: a receiving component; an end cap component having the cooling section, wherein the end cap component is detachably connected to one end of the receiving component and cooperates with the receiving component to form the receiving cavity, and defines the heat preservation section within the receiving cavity.

[0012] The end cap assembly includes an end cap and an extractor. The extractor is detachably connected to the end cap and has a cooling section. An insertion cavity is formed between the extractor and the inner wall of the end cap. The end of the receiving assembly facing away from the base is inserted into the insertion cavity. The extractor is inserted into the receiving cavity and defines the heat preservation section.

[0013] The receiving assembly includes a magnetic receiving tube, one end of which is inserted into the insertion cavity; the end cap assembly also includes a magnetic element, which is disposed between the end cap and the extractor, and is used to magnetically attract the magnetic receiving tube.

[0014] The receiving component further includes a positioning tube, which is sleeved inside the magnetic receiving tube and has the receiving cavity. The inner wall of the positioning tube is positioned and engaged with the outer wall of the extractor.

[0015] The inner wall of the extractor is provided with at least one rib, which is used to position the aerosol generating matrix.

[0016] The number of the ribs is multiple and they are spaced apart from each other. The multiple ribs are distributed circumferentially along the receiving cavity. The first air passage includes an air inlet gap between two adjacent ribs.

[0017] The ribs are provided with guide surfaces, which are located at the end of the extractor away from the base, to guide the aerosol-generating matrix into the positioning space defined by the ribs.

[0018] The cooling section is a cylindrical cavity, and the radial dimension of the cooling section is larger than the radial dimension of the aerosol generating matrix.

[0019] The end cap is disposed on the extractor, and the end cap has a receiving port corresponding to the port of the extractor. The receiving port is used to circumferentially position the aerosol generating substrate, and an air inlet gap is formed between the receiving port and the aerosol generating substrate; or the end cap has an air inlet hole that connects to the cooling section.

[0020] The aerosol generating matrix includes a leaf segment and an extraction segment for insertion into the containment cavity. The heat-insulating segment covers at least a portion of the leaf segment, the cooling segment covers at least a portion of the extraction segment, and one end of the heating component is inserted into the leaf segment.

[0021] Wherein, the ratio of the length of the leaf segment covered by the heat-insulating section to the length of the leaf segment is greater than or equal to 0.25.

[0022] The heating component includes a base and a heating element disposed on the base. The base is disposed at one end of the heat preservation section and is used to support the leaf segment. The heating element is used to insert into the leaf segment. The ratio of the length of the heat preservation section to the length of the leaf segment is greater than or equal to 0.25.

[0023] Wherein, the ratio of the length of the insulation section to the length of the leaf segment is greater than or equal to 1.0, and the insulation section is used to fully cover the leaf segment.

[0024] The beneficial effects of this application are as follows: This application discloses an aerosol generating device, which provides a first air channel on the inner wall of the receiving cavity of the receiver. The first air channel includes a cooling section and a heat preservation section with different cross-sectional areas. The cooling section and the heat preservation section are distributed along the direction in which the aerosol generating substrate is inserted into the receiving cavity. When using the aerosol generating device, the airflow flows through the cooling section and the heat preservation section in sequence to the heating component, so that the heating component atomizes the aerosol generating substrate to generate aerosol for the user to inhale. When the airflow passes through the cooling section, the relatively small cross-sectional area of ​​the cooling section results in a relatively high airflow velocity and a high convective heat transfer coefficient. This effectively cools the aerosol generation substrate located in the cooling section, lowering the inlet temperature of the aerosol and improving the user's suction experience. After preheating in the cooling section, the airflow enters the insulation section. The relatively large cross-sectional area of ​​the insulation section slows down the airflow velocity and results in a lower convective heat transfer coefficient. This provides excellent insulation for the aerosol generation substrate located in the insulation section, effectively reducing heat dissipation and ensuring a higher atomization environment temperature for the aerosol generation substrate. This significantly improves the atomization efficiency of the heating element for the aerosol generation substrate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the aerosol generating device provided in this application;

[0027] Figure 2 This is an exploded structural diagram of an embodiment of the aerosol generating device provided in this application;

[0028] Figure 3 This is a cross-sectional view of an embodiment of the aerosol generating apparatus provided in this application;

[0029] Figure 4 This is a schematic diagram of the connection structure between the first airway and the aerosol generating matrix provided in this application;

[0030] Figure 5 This is a schematic diagram of the connection structure of the insulation section and leaf segment in the first embodiment provided in this application;

[0031] Figure 6 This is a schematic diagram of the connection structure of the insulation section and leaf segment in the second embodiment provided in this application;

[0032] Figure 7 This is a schematic diagram of the connection structure of the insulation section and leaf segment in the third embodiment provided in this application;

[0033] Figure 8 This is an exploded structural diagram of the heating component provided in this application;

[0034] Figure 9 This is a three-dimensional structural schematic diagram of the heating component provided in this application;

[0035] Figure 10 yes Figure 9 Top view of the provided heating element;

[0036] Figure 11 This is a cross-sectional view of the receiver provided in this application;

[0037] Figure 12 This is a three-dimensional structural schematic diagram of the extractor provided in this application;

[0038] Figure 13 yes Figure 12 A top view of the provided extractor. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] The terms "first" and "second" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the overall structure of an embodiment of the aerosol generating device provided in this application. Figure 2 This is an exploded structural diagram of an embodiment of the aerosol generating device provided in this application. Figure 3 This is a cross-sectional view of an embodiment of the aerosol generating apparatus provided in this application.

[0043] The aerosol generating device 100 provided in this application includes a receiver 1, a heating element 2, a housing 3, a power supply component 5, and a switch 6. The receiver 1 has a receiving cavity 10. One end of the heating element 2 is inserted into the receiving cavity 10 to be inserted into the aerosol generating substrate 4 and heat the aerosol generating substrate 4. The receiving cavity 10 is used to house the aerosol generating substrate 4, and its shape and size are not limited and can be designed as needed. The power supply component 5 is connected to the heating element 2 and is used to supply power to the heating element 2. Driven by the power supply component 5, the heating element 2 heats the aerosol generating substrate 4 in the receiving cavity 10 to atomize it into an aerosol that can be inhaled by the user. The aerosol generating substrate 4 can be a solid substrate such as plant leaves. The aerosol generating device 100 can be used in different fields, such as medical, beauty, and recreational inhalation. The power supply component 5 includes a battery 51, a bracket 52, a driving component (not shown), and a controller (not shown). Battery 51 powers the heating element 2, enabling it to heat the aerosol generation substrate 4 to form an aerosol. Switch 6 activates or deactivates the aerosol generating device 100.

[0044] Please see Figures 4 to 7 , Figure 4 This is a schematic diagram of the connection structure between the first airway and the aerosol generating matrix provided in this application. Figure 5 This is a schematic diagram of the connection structure of the insulation section and leaf segment in the first embodiment provided in this application. Figure 6 This is a schematic diagram of the connection structure between the insulation section and the leaf segment in the second embodiment provided in this application. Figure 7 This is a schematic diagram of the connection structure of the insulation section and leaf segment in the third embodiment provided in this application.

[0045] In one embodiment, the inner wall of the receiving cavity 10 is provided with a first air passage 11. The first air passage 11 includes a heat-insulating section 111 and a cooling section 112 that are interconnected. The heat-insulating section 111 is disposed near the bottom of the receiving cavity 10 relative to the cooling section 112. In the axial direction of the receiving cavity 10, that is, in the direction in which the aerosol generating matrix 4 is inserted into the receiving cavity 10, the cross-sectional area of ​​the heat-insulating section 111 is larger than the cross-sectional area of ​​the cooling section 112. The first air passage 11 is used to allow gas outside the receiver 1 to flow into the heating component 2 through the cooling section 112 and the heat-insulating section 111.

[0046] like Figure 3 and Figure 4As shown, the heating assembly 2 includes a base 21 and a heating element 22 disposed on the base 21. The base 21 can cover one end of the insulation section 111 and also supports the blade segment 41. The heating element 22 is inserted into the receiving cavity 10. One end of the heating assembly 2 is used to insert the blade segment 41. Specifically, the heating element 22 is inserted into the blade segment 41 to heat the blade segment 41. The heating element 22 can be inserted into a part of the blade segment 41 or into the entire length of the blade segment 41 to improve the heating effect. This application does not limit this.

[0047] Specifically, the aerosol generating substrate 4 is inserted into the receiving cavity 10 during use. The aerosol generating substrate 4 may include a leaf segment 41 and an extraction segment 42 inserted into the receiving cavity 10. The heat preservation segment 111 can cover at least a portion of the leaf segment 41, and the cooling segment 112 is used to cover at least a portion of the extraction segment 42. The bottom of the aerosol generating substrate 4 is close to the base 21, and the heat preservation segment 111 is located on the side close to the base 21. Therefore, the heat preservation segment 111 can keep the side of the aerosol generating substrate 4 close to the base 21 warm, that is, keep the leaf segment 41 of the aerosol generating substrate 4 warm. In other words, the inner cavity of the heat preservation segment 111 and the leaf segment 41 are at least partially overlapped. The heat preservation segment 111 can completely cover the leaf segment 41, or it can only cover a portion of the leaf segment 41.

[0048] like Figure 5 As shown, when the insulation section 111 completely covers the blade segment 41, that is, the ratio of the length of the insulation section 111 to the length of the blade segment 41 is greater than or equal to 1.0, and the cross-sectional area of ​​the insulation section 111 is greater than the cross-sectional area of ​​the cooling section 112, the air convection heat transfer coefficient in the insulation section 111 is relatively small. This can improve the insulation effect on the blade segment 41, prevent the heat from the heating element 22 from dissipating too quickly, improve the heating efficiency and atomization effect on the aerosol generating substrate 4, and enhance the user's suction experience. At the same time, it can reduce the heat loss of the aerosol generating device 100.

[0049] like Figure 6 and Figure 7 As shown, when the insulation section 111 only covers a portion of the leaf segment 41, for example, the ratio of the length of the leaf segment 41 covered by the insulation section 111 to the length of the leaf segment 41 is greater than or equal to 0.25, specifically, it can cover as follows: Figure 7 One-third or coverage as shown Figure 6The application does not limit the representation to half, etc. However, in order to ensure the heat preservation effect of the heat preservation section 111 on the leaf segment 41, the ratio of the length of the leaf segment 41 covered by the heat preservation section 111 to the length of the leaf segment 41 should be at least greater than or equal to 0.25. At this time, the heat preservation effect of the heat preservation section 111 on the leaf segment 41 is reduced compared to the heat preservation section 111 completely covering the leaf segment 41, but the cooling effect of the cooling section 112 on the extraction section 42 of the aerosol generating matrix 4 will be more obvious, and the inhalation temperature of the aerosol will be lower for the user.

[0050] In one embodiment, the ratio of the length of the insulation section 111 to the length of the leaf segment 41 is greater than or equal to 0.25. It is important to note that this is the ratio between the length of the insulation section 111 and the length of the leaf segment 41, not the ratio between the length of the insulation section 111 covering the leaf segment 41 and the length of the leaf segment 41 itself. As mentioned above, since the insulation section 111 may not completely cover the leaf segment 41, the length of the insulation section 111 and the length of the insulation section 111 covering the leaf segment 41 are not simply equivalent. Only when the length of the insulation section 111 is equal to the length of the leaf segment 41 are the length of the insulation section 111 covering the leaf segment 41 considered equal.

[0051] Specifically, such as Figures 4 to 7 As shown, since the insulation section 111 needs to at least partially cover the leaf segment 41, the insulation section 111 needs to meet a certain length to ensure the insulation effect on the leaf segment 41. The leaf segment 41 is disposed within the insulation section 111. When the insulation section 111 needs to insulate the leaf segment 41, the length of the insulation section 111 should be at least one-quarter of the length of the leaf segment 41, but it can also be one-third, one-half, or greater than or equal to the length of the leaf segment 41, etc. This application does not limit this. It can be understood that the longer the insulation section 111 is, the better the insulation effect on the leaf segment 41. In this embodiment, when the base 21 covers one end of the insulation section 111, the aerosol generating substrate 4 is inserted into the receiving cavity 10. The end of the aerosol generating substrate 4 closest to the insulation section 111 abuts against the base 21, so that the base 21 can support the leaf segment 41, that is, the end of the leaf segment 41 away from the extraction section 42 abuts against the end face of the base 21. Preferably, the length of the heat-insulating section 111 can be slightly longer than the length of the leaf segment 41, for example, the ratio of the length of the heat-insulating section 111 to the length of the leaf segment 41 is 1.25. If the length of the heat-insulating section 111 is too long, it will cause the heat-insulating section 111 to heat the extraction section 42 of the aerosol generating matrix 4, thereby reducing the cooling effect of the cooling section 112 on the extraction section 42.

[0052] The cooling section 112 covers at least a portion of the extraction section 42 of the aerosol generating matrix 4. As described above, the cooling section 112 is located on the side of the receiving cavity 10 away from the heating element 2, and the heating element 22 is not inserted into the extraction section 42, thus preventing the extraction section 42 from overheating. The cross-sectional area of ​​the cooling section 112 is smaller than that of the heat preservation section 111, resulting in a faster airflow velocity and a higher convective heat transfer coefficient, thereby cooling the extraction section 42 and reducing the inlet temperature of the aerosol.

[0053] like Figure 4 As shown, in other embodiments, the aerosol generating matrix 4 may further include a mouthpiece section 43. The mouthpiece section 43 is the end of the extraction section 42 away from the leaf segment 41. It can be understood that the mouthpiece section 43 is the part for the user to inhale. Therefore, the mouthpiece section 43 can be disposed outside the housing 3, which makes it easier for the user to inhale. At the same time, since the aerosol flowing to the mouthpiece section 43 has been cooled by the extraction section 42, the temperature of the aerosol entering the user's mouth is greatly reduced, improving the taste of the aerosol and further enhancing the user experience.

[0054] In one embodiment, the cooling section 112 is a cylindrical cavity, and the radial dimension of the cooling section 112 is larger than the radial dimension of the aerosol generating matrix 4, so that the aerosol generating matrix 4 can pass through the cooling section 112 to reach the heat preservation section 111. In other embodiments, the cooling section 112 may also be a prismatic cavity, a rectangular cavity, etc., and this application does not limit it.

[0055] Please see Figures 8 to 10 , Figure 8 This is an exploded structural diagram of the heating component provided in this application. Figure 9 This is a three-dimensional structural diagram of the heating component provided in this application. Figure 10 yes Figure 9 A top view of the provided heating element.

[0056] In one embodiment, the end face of the base 21 facing the receiving cavity 10 is further provided with a second air passage 23, which communicates with the first air passage 11 and faces the heating element 22. The second air passage 23 includes at least one air inlet groove 231 and a converging groove 232. The air inlet groove 231 extends from the edge of the base 21 toward the heating element 22. The converging groove 232 is arranged around the heating element 22, and the air inlet groove 231 communicates with the converging groove 232. The converging groove 232 can be covered by the aerosol generating matrix 4.

[0057] Specifically, the second airway 23 is connected to the first airway 11, allowing external gas to enter the base 21 from the first airway 11 and then enter the aerosol generating matrix 4 from the second airway 23, so as to transport the heated aerosol to the nozzle section for the user to inhale.

[0058] like Figure 3 and Figure 10 As shown, the converging groove 232 is preferably located at the center of the base 21, surrounding the heating element 22. The air inlet groove 231 converges from the edge of the base 21 towards the heating element 22 and communicates with the converging groove 232. This allows gas to flow around the converging groove 232 and the heating element 22. Simultaneously, after the aerosol generating substrate 4 is inserted into the receiving cavity 10, the heating element 22 is inserted from the bottom end of the aerosol generating substrate 4 to the blade segment 41. The cross-section of the aerosol generating substrate 4 is larger than the size of the converging groove 232, allowing the aerosol generating substrate 4 to cover the converging groove 232, thus enabling gas to also enter the aerosol generating substrate 4.

[0059] Preferably, there are multiple air intake slots 231, which are radially arranged around the converging slot 232. Specifically, the multiple air intake slots 231 are evenly distributed around the converging slot 232 in a radial arrangement at equal intervals, so that the second air passage 23 can receive air evenly. The sidewalls of the air intake slots 231 can be of equal width, irregular, or gradually narrow towards the converging slot 232 at equal intervals. For example, the cross-section of the sidewalls of the air intake slots 231 can be parallel, wavy, or radial, etc. The specific shape of the sidewalls of the air intake slots 231 is not limited. In this embodiment, the air intake slots 231 gradually narrow from the edge of the base 21 to the converging slot 232, forming a trumpet-shaped air intake slot 231, which allows the airflow to converge better from all sides to the center.

[0060] like Figure 8 and Figure 9 The heating element 22 includes a heating column 221, a pointed tip 222, and a lead wire 223. Unlike the flat structure of heating elements 22 in related technologies, the main body of the heating element 22 in this application is columnar, with the pointed tip 222 at the end of the column away from the base 21. By designing the heating element 22 as a heating column 221 and a pointed tip 222, the heating element 22 can more easily enter or be removed from the aerosol generating substrate 4, reducing the likelihood of blade adhesion. Simultaneously, the columnar shape of the heating element 22 allows the aerosol generating substrate 4 to detach from the heating element 22 by rotation, facilitating the extraction of the aerosol generating substrate 4. The lead wire 223 is located at the end of the heating column 221 away from the pointed tip 222 and can be connected to the power supply assembly 5, allowing the power supply assembly 5 to supply power to the heating element 22 to heat the aerosol generating substrate 4.

[0061] like Figure 8 and Figure 9As shown, a heating protective shell 214 is provided on the side of the base 21 away from the heating element 22. The heating protective shell 214 is a cylindrical body with a cavity. The end of the heating element 22 away from the extractor 132 extends into the cylindrical body of the heating protective shell 214, so that the heating protective shell 214 partially surrounds the heating element 22 and can protect the heating element 22. The heating protective shell 214 and the base 21 can be connected by means of snap-fit, screw connection or threaded connection, etc. The specific connection method is not limited in this application.

[0062] In one embodiment, the outer wall of the base 21 has a first step 211 and a second step 212. The first step 211 is formed on the outer wall of the base 21 near the air inlet slot 231 and communicates with a plurality of air inlet slots 231 for collecting airflow from the receiver 1. The second step 212 is formed on the outer wall of the base 21 away from the air inlet slot 231. A sealing element 213 is also provided between the first step 211 and the second step 212.

[0063] Specifically, both the first step 211 and the second step 212 are annular. The upper surface of the first step 211 is connected to multiple air inlet slots 231, allowing the airflow entering from the receiver 1 to converge at the upper surface of the first step 211 before entering the air inlet slots 231 and the aerosol generating matrix 4. This ensures that the airflow entering the first air passage 11 from the outside can flow evenly into the second air passage 23. A seal 213 is provided between the first step 211 and the second step 212 to prevent airflow from entering the power supply assembly 5 and causing damage to it.

[0064] Please see Figures 11 to 13 , Figure 11 This is a cross-sectional view of the receiver provided in this application. Figure 12 This is a three-dimensional structural diagram of the extractor provided in this application. Figure 13 yes Figure 12 A top view of the provided extractor.

[0065] In one embodiment, the receiver 1 includes a detachably connected receiving component 12 and an end cap assembly 13, which together form a receiving cavity 10. The end cap assembly 13 is provided with a cooling section 112 and is detachably connected to one end of the receiving component 12, and cooperates with the receiving component 12 to define a heat preservation section 111.

[0066] Specifically, the end cap assembly 13 includes an end cap 131, an extractor 132, and a magnetic component 134. The end cap 131 covers the extractor 132, and the end cap 131 has a receiving port 133 corresponding to the port of the extractor 132. The receiving port 133 is used to circumferentially position the aerosol generating substrate 4, and the receiving port 133 is corresponding to the port of the extractor 132 away from the base 21. The aerosol generating substrate 4 is inserted through the receiving port 133 and housed in the receiving cavity 10. An air inlet gap 1330 is formed between the receiving port 133 and the aerosol generating substrate 4 for external gas to enter the first air passage 11. Alternatively, the end cap 131 may also have an air inlet hole 1331 communicating with the cooling section 112. The air inlet gap 1330 and the air inlet hole 1331 may be provided, or both may be provided. The air inlet 1331 can be a through hole formed on the top or side of the end cap 131, or it can be an air inlet reserved between the end cap 131 and the aerosol generating substrate 4, so that gas can enter the first air passage 11 from the through hole or air inlet. The magnetic component 134 is disposed between the end cap 131 and the extractor 132, and the magnetic component 134 is used to magnetically connect with the receiving assembly 12.

[0067] Specifically, the receiving port 133 is provided with a protrusion 1332 and an arc-shaped surface 1333 connected to the protrusion 1332. The protrusion 1332 abuts against the aerosol generating substrate 4 and can fix the aerosol generating substrate 4. There is a certain gap between the arc-shaped surface 1333 and the aerosol generating substrate 4, so that external gas can enter the receiving cavity 10. The gap between the arc-shaped surface 1333 and the aerosol generating substrate 4 can serve as an air inlet slit 1330 to allow external gas to enter.

[0068] The extractor 132 is detachably connected to the end cap 131. The extractor 132 is provided with a cooling section 112, and an insertion cavity 136 is formed between the extractor 132 and the inner wall of the end cap 131. The end of the receiving component 12 facing away from the base 21 is inserted into the insertion cavity 136.

[0069] Specifically, there is a certain gap between the extractor 132 and the aerosol generating substrate 4, which can form the cooling section 112. The outer surface of the extractor 132 has a circumferentially arranged protruding ring 1321. When the extractor 132 is placed inside the end cap 131, a cavity is formed between the protruding ring 1321 and the end cap 131, which is the insertion cavity 136. The end of the receiving assembly 12 away from the base 21 is inserted into the insertion cavity 136 to fix the receiving assembly 12.

[0070] In one embodiment, the receiving assembly 12 may include a magnetic receiving tube 122 and a positioning tube 121. One end of the magnetic receiving tube 122 is inserted into the insertion cavity 136 and abuts against the protruding ring 1321 of the extractor 132. The positioning tube 121 is sleeved inside the magnetic receiving tube 122 and has a receiving cavity 10 inside. The inner wall of the positioning tube 121 is positioned and engaged with the outer wall of the extractor 132. The extractor 132 is inserted into the receiving cavity 10 and defines the heat preservation section 111.

[0071] Specifically, the inner wall of the positioning tube 121 abuts against the outer wall of the extractor 132 near the base 21, and a cavity is positioned between the end of the extractor 132 near the base 21, the inner wall of the positioning tube 121, and the end face of the base 21. This cavity is the heat-insulating section 111 of the first airway 11. When the aerosol generating substrate 4 is inserted into the receiving cavity 10 in the receiver 1, its bottom contacts the end face of the base 21, and the leaf segment 41 of the aerosol generating substrate 4 can be at least partially located in the heat-insulating section 111, so that the heat-insulating section 111 can keep the leaf segment 41 warm.

[0072] In other embodiments, the receiving component 12 can also be an integral single tube structure, that is, the magnetic receiving tube 122 and the positioning tube 121 are embedded in the insertion cavity 136 as a whole and abut against the protruding ring 1321 of the extractor 132, which can also achieve the function of the receiving component 12. This application does not limit it.

[0073] The magnetic component 134 is specifically disposed between the end cap 131 and the protruding ring 1321 of the extractor 132. In this embodiment, the extractor 132, the magnetic receiving tube 122, and the end cap 131 can be metal components. The magnetic receiving tube 122 and the magnetic component 134 are respectively disposed on both sides of the protruding ring 1321, and the end cap 131 is sleeved on the outside of the magnetic receiving tube 122 and the magnetic component 134. Through the magnetic attraction of the magnetic component 134, the magnetic receiving tube 122, the extractor 132, and the end cap 131 can form an integral assembly structure, which facilitates the installation of the overall structure of the aerosol generating device 100. At the same time, the magnetic receiving tube 122, the extractor 132, and the end cap 131 constituting this integral assembly structure are magnetically attracted to each other and have a certain weight, making it easier to remove the aerosol generating substrate 4 from the extractor 132. It is understood that the extractor 132, the magnetic receiving tube 122, and the end cap 131 can also be made of other materials, and the functions of this application can be achieved even without forming an integral assembly structure. The magnetic component 134 can be a structure made of a magnet or other materials with a magnetic coating, and the specific choice can be made according to the needs. This application does not limit this.

[0074] like Figure 12 and Figure 13The inner wall of the extractor 132 is provided with at least one rib 130, which is used to position the aerosol generating matrix 4 and to guide the gas outside the receiver 1 to the heating component 2.

[0075] Specifically, the ribs 130 are disposed on the inner wall surface of the extractor 132, forming an air inlet gap 110 between the aerosol generating substrate 4 and the extractor 132, allowing external gas to flow through the air inlet gap 110 and reach the heating element 2. Simultaneously, the ribs 130 can fix the aerosol generating substrate 4, keeping it and the extractor 132 in a coaxial position and preventing displacement. The number of ribs 130 can be one or more. When multiple ribs 130 are provided, they need to be spaced apart and distributed circumferentially along the receiving cavity 10 to ensure sufficient space for the aerosol generating substrate 4 to be inserted. The air inlet gap 110 between two adjacent ribs 130 also serves as part of the first air passage 11, used to introduce external gas into the heating element 2. In this embodiment, the ribs 130 are distributed on a portion of the inner wall of the extractor 132 near the base 21. In other embodiments, the ribs 130 may also be positioned in contact with the protrusions 1332 of the receiving port 133; this application does not limit this. The ribs 130 and the extractor 132 can be an integral structure or a separate structure within the extractor 132; no specific limitation is made. The specific number and shape of the ribs 130 are not limited, as long as they satisfy the requirement of having an air inlet gap 110 between them and allowing the aerosol generating matrix 4 to pass through; this application does not limit this.

[0076] Furthermore, the ribs 130 are provided with guide surfaces 1301, which are positioned towards the port of the extractor 132 away from the base 21. These guide surfaces 1301 can be used to guide the aerosol generating substrate 4 to be conveniently inserted into the positioning space defined by the multiple ribs 130. The guide surface 1301 can be an inclined surface, an arc surface, or other surfaces, as long as it can guide the aerosol generating substrate 4. This application does not impose any restrictions on this.

[0077] like Figure 2 and Figure 3 As shown, the outer casing 3 is located outside the power supply assembly 5, and an opening 31 is provided on the outer casing 3 for installing the switch 6 of the aerosol generating device 100. A bracket 52 is located inside the outer casing 3 for installing and supporting components such as the battery 51 and the circuit board 54. The battery 51 is connected to the heating element 22 to supply power to the heating element 22, enabling the heating element 22 to heat the aerosol generating substrate 4 to form an aerosol for the user to inhale.

[0078] like Figure 3 and Figure 8As shown, the end cap assembly 13 and the housing 3 can be connected by means of threads, snap-fit, etc. The sealing element 213 can prevent airflow from entering the power supply assembly 5 and causing damage or corrosion to the components inside the power supply assembly 5. Other sealing elements or connectors can also be provided between the end cap assembly 13 and the housing 3 to ensure a tight connection between the end cap assembly 13 and the housing 3.

[0079] The aerosol generating device disclosed in this application includes a receiver and a heating element. The receiver has a receiving cavity for housing an aerosol generating substrate, and the inner wall of the receiving cavity has a first air passage. One end of the heating element is inserted into the receiving cavity for inserting into the aerosol generating substrate and heating the aerosol generating substrate. The first air passage includes an insulating section and a cooling section that are interconnected. The insulating section is positioned near the bottom of the receiving cavity relative to the cooling section. In the axial direction of the receiving cavity, the cross-sectional area of ​​the insulating section is larger than that of the cooling section. The first air passage is used to introduce gas from outside the receiver through the cooling section and the insulating section to the heating element. By setting the insulating and cooling sections in the air passage, the aerosol atomization efficiency is improved, and the problem of high aerosol inlet temperature affecting user experience is solved.

[0080] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An aerosol generating device, characterized in that, include: The receiver is provided with a receiving cavity for containing the aerosol generating matrix, and a first air passage is provided inside the receiving cavity; A heating element, one end of which is inserted into the aerosol generating matrix and heats the aerosol generating matrix; The first air passage includes an insulated section and a cooling section that are interconnected. The insulated section is located near the bottom of the receiving cavity relative to the cooling section. In the axial direction of the receiving cavity, the cross-sectional area of ​​the insulated section is larger than that of the cooling section. The first air passage is used to introduce gas from outside the receiver into the heating component through the cooling section and the insulated section. It also includes a power supply component, which is connected to the heating component and is used to supply power to the heating component.

2. The aerosol generating device according to claim 1, characterized in that, The heating element has a second air channel on its end face facing the receiving cavity. The first air channel is connected to the second air channel so that gas outside the receiver can enter the aerosol generating matrix through the first air channel and the second air channel.

3. The aerosol generating device according to claim 2, characterized in that, The heating component includes a base and a heating element disposed on the base. The base is disposed at one end of the receiving cavity, and the end face of the base facing the receiving cavity is provided with a second air passage. The heating element is used to be inserted into the aerosol generating matrix.

4. The aerosol generating device according to claim 3, characterized in that, The second air passage includes at least one air inlet groove that extends from the edge of the base toward the heating element.

5. The aerosol generating device according to claim 4, characterized in that, The second air passage further includes a converging groove, which is arranged around the heating element. The air inlet groove communicates with the converging groove, and the converging groove can be covered by the aerosol generating matrix.

6. The aerosol generating apparatus according to claim 5, characterized in that, The number of air intake slots is multiple, and the multiple air intake slots are arranged radially around the periphery of the converging slot.

7. The aerosol generating apparatus according to claim 6, characterized in that, The sidewalls of the air intake groove are of equal width, or gradually narrow from the edge of the base to the converging groove.

8. The aerosol generating apparatus according to claim 1, characterized in that, The receiver includes: Contains components; The end cap assembly is provided with the cooling section, and the end cap assembly is detachably connected to one end of the receiving assembly and cooperates with the receiving assembly to form the receiving cavity, and defines the heat preservation section within the receiving cavity.

9. The aerosol generating apparatus according to claim 8, characterized in that, The end cap assembly includes an end cap and an extractor. The extractor is detachably connected to the end cap and has the cooling section. An insertion cavity is formed between the extractor and the inner wall of the end cap. The end of the receiving assembly opposite to the base of the heating assembly is inserted into the insertion cavity. The extractor is inserted into the receiving cavity and defines the heat preservation section.

10. The aerosol generating apparatus according to claim 9, characterized in that, The receiving assembly includes a magnetic receiving tube, one end of which is inserted into the insertion cavity; The end cap assembly also includes a magnetic element disposed between the end cap and the extractor, the magnetic element being used to magnetically attract the magnetic receiving tube.

11. The aerosol generating apparatus according to claim 10, characterized in that, The receiving assembly further includes a positioning tube, which is sleeved inside the magnetic receiving tube and has the receiving cavity. The inner wall of the positioning tube is positioned and engaged with the outer wall of the extractor.

12. The aerosol generating apparatus according to claim 9, characterized in that, The inner wall of the extractor is provided with at least one rib, which is used to position the aerosol generating matrix.

13. The aerosol generating apparatus according to claim 12, characterized in that, The number of ribs is multiple and they are spaced apart from each other. The multiple ribs are distributed circumferentially along the receiving cavity. The first air passage includes an air intake gap between two adjacent ribs.

14. The aerosol generating apparatus according to claim 13, characterized in that, The ribs are provided with guide surfaces, which are located at the end of the extractor away from the base, to guide the aerosol-generated matrix into the positioning space defined by the ribs.

15. The aerosol generating apparatus according to any one of claims 9-14, characterized in that, The cooling section is a cylindrical cavity, and the radial dimension of the cooling section is larger than the radial dimension of the aerosol generating matrix.

16. The aerosol generating apparatus according to claim 15, characterized in that, The end cap is disposed on the extractor, and the end cap has a receiving port corresponding to the port of the extractor. The receiving port is used to circumferentially position the aerosol generating matrix, and an air inlet gap is formed between the receiving port and the aerosol generating matrix; or The end cap is provided with an air inlet that connects to the cooling section.

17. The aerosol generating apparatus according to claim 1, characterized in that, The aerosol generating matrix includes a leaf segment and an extraction segment for insertion into the containment cavity, the heat-insulating segment for covering at least a portion of the leaf segment, the cooling segment for covering at least a portion of the extraction segment, and one end of the heating component for insertion into the leaf segment.

18. The aerosol generating apparatus according to claim 17, characterized in that, The ratio of the length of the leaf segment covered by the insulation section to the length of the leaf segment is greater than or equal to 0.

25.

19. The aerosol generating apparatus according to claim 18, characterized in that, The heating component includes a base and a heating element disposed on the base. The base is disposed at one end of the heat preservation section and is used to support the leaf segment. The heating element is used to insert into the leaf segment. Wherein, the ratio of the length of the heat-insulating section to the length of the leaf segment is greater than or equal to 0.

25.

20. The aerosol generating apparatus according to claim 19, characterized in that, The ratio of the length of the insulation section to the length of the leaf segment is greater than or equal to 1.0, and the insulation section is used to fully cover the leaf segment.

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