Aerosol generation device

Abstract

The application discloses an aerosol generating device, comprising an extractor and a heating assembly, the extractor has an axial through hole; the heating assembly comprises a base and a heating element arranged on the base, the base is arranged at one end of the through hole and cooperates with the through hole to define a receiving cavity for receiving an aerosol generating substrate, and the heating element is used to be inserted into the aerosol generating substrate and heat the aerosol generating substrate. The extractor of the application is an axial through hole, the extractor and the heating assembly form the receiving cavity of the aerosol generating substrate, which can simplify the structure of the extractor, and external air can directly enter the heating assembly from the through hole to heat the aerosol generating substrate, the airway path is short, and the clogging phenomenon is not easy to occur.

Description

Technical Field

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

[0002] The heated non-combustible (HNB) aerosol generator includes a containment pipe for housing the aerosol generating substrate and a lower housing for housing a battery. The containment pipe is located inside the upper cover and houses a heating element, powered by the battery. The lower housing has an air inlet and an air passage connecting the air inlet and the containment pipe. When the aerosol generating substrate is heated and the user inhales the aerosol, outside air enters from the air inlet into the air passage and then into the containment pipe, passing through the interior of the aerosol generating substrate to deliver the aerosol to the user's mouth. However, this structure results in a high temperature on the upper cover, affecting the user experience. Furthermore, the air passage is located in the lower housing, making the structure complex and prone to blockage. Summary of the Invention

[0003] In view of this, this application provides an aerosol generating device to solve the problem of high top cover temperature in the prior art, which affects the user experience.

[0004] To solve the above-mentioned technical problems, the technical solution provided in this application is as follows: an aerosol generating device is provided, including an extractor and a heating component. The extractor has an axially penetrating through hole. The heating component includes a base and a heating element disposed on the base. The base is disposed at one end of the through hole and, together with the through hole, defines a receiving cavity for receiving an aerosol generating matrix. The heating element is used to be inserted into the aerosol generating matrix and to heat the aerosol generating matrix.

[0005] The inner wall of the receiving cavity is provided with a first air passage; the end face of the base facing the receiving cavity is provided with a second air passage, which is connected to the first air passage so that external gas can enter the aerosol generating matrix through the first air passage and the second air passage.

[0006] An annular cavity is formed between the end face of the base facing the receiving cavity and the extractor. The annular cavity surrounds the aerosol generating matrix. One end of the first airway and one end of the second airway are both connected to the annular cavity.

[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 air intake groove has a uniform width or gradually narrows from the edge of the base to the converging groove.

[0011] The first air passage includes a heat-insulating section and a cooling section that are connected. The heat-insulating section is disposed relatively close to the base, and the cooling section is disposed relatively close to the port of the receiving cavity. The cross-sectional area of ​​the heat-insulating section is larger than that of the cooling section in the axial direction of the receiving cavity.

[0012] The aerosol matrix includes a leaf segment and an extraction segment for insertion into the containment cavity, the heat preservation 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 element for insertion into the leaf segment.

[0013] The through hole includes a heat-insulating section and a cooling section; or the end of the through hole facing the base defines the heat-insulating section with the base, and the side of the through hole away from the base is the cooling section.

[0014] The aerosol generating device further includes: a receiving component; a base connected to the receiving component and cooperating to define the receiving cavity; and an extractor cooperating with the receiving component to define the heat preservation section within the receiving cavity.

[0015] The extractor includes a first extractor or a second extractor, and the length of the first extractor is not equal to the length of the second extractor, such that the extractor has a different length from the heat-insulating section defined by the receiving component.

[0016] The inner wall of the through hole is provided with at least one rib, which is used to position and clamp the aerosol generating matrix.

[0017] The ribs are multiple and spaced apart, and are distributed circumferentially along the receiving cavity. Each rib is also provided with a guide surface, which is positioned toward the port of the receiving cavity to guide the aerosol generating matrix into the positioning space defined by the multiple ribs.

[0018] The base is located at one end of the through hole.

[0019] The base and the extractor are spaced apart at one end facing the base.

[0020] The beneficial effects of this application are as follows: Unlike existing technologies, the aerosol generating device of this application includes an extractor and a heating element. The extractor has an axially penetrating through-hole; the heating element includes a base and a heating element disposed on the base. The base is disposed at one end of the through-hole and, together with the through-hole, defines a receiving cavity for accommodating the aerosol generating matrix. The heating element is inserted into the aerosol generating matrix and heats the aerosol generating matrix. The extractor of this application has a through-hole that extends vertically. The extractor and the heating element together form the receiving cavity for the aerosol generating matrix, which simplifies the structure of the extractor. Furthermore, external air can directly enter the heating element through the through-hole to heat the aerosol generating matrix, resulting in a short airflow path and reducing the likelihood of blockage. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the aerosol generating device provided in this application;

[0023] Figure 2 This is an exploded structural diagram of an embodiment of the aerosol generating device provided in this application;

[0024] Figure 3 This is a cross-sectional view of an embodiment of the aerosol generating apparatus provided in this application;

[0025] Figure 4 This is an exploded structural diagram of the heating component provided in this application;

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the heating component provided in this application;

[0027] Figure 6 yes Figure 5 Top view of the provided heating element;

[0028] Figure 7 This is a schematic diagram of the structure of the receiver and heating component provided in one embodiment of this application;

[0029] Figure 8 This is an exploded view of a receiver provided in an embodiment of this application;

[0030] Figure 9 yes Figure 7 Enlarged view of the partial structure of the provided receiver and heat-generating component;

[0031] Figure 10 This is a structural cross-sectional view of a receiver provided in another embodiment of this application;

[0032] Figure 11 This is a partial exploded view of the receiver provided in another embodiment of this application;

[0033] Figure 12 This is a schematic diagram of the structure of the first airway provided in this application;

[0034] Figure 13 This is a schematic diagram of the connection structure of an embodiment of the heat-insulating section and leaf segment provided in this application. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Existing heated non-combustible aerosol generating devices have an air inlet and an air passage connected to the air inlet and a receiving pipe in the lower housing. When the aerosol generating substrate is heated and the user inhales the aerosol, external air enters the air passage through the air inlet and then the receiving pipe, delivering the aerosol to the user's mouth through the interior of the aerosol generating substrate. The inventors of this application have found that because the receiving pipe is close to the top cover in this structure, the heat from the heating element easily transfers to the top cover, resulting in a high temperature. Since the top cover is typically held by the user, a high top cover can easily become hot, degrading the user experience. Furthermore, the air passage is located in the lower housing, resulting in a complex structure and a long air passage path, which is prone to blockage and reduces the atomization efficiency of the aerosol generating substrate. To overcome these problems, this application provides a novel aerosol generating device.

[0039] 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.

[0040] The aerosol generating device 100 provided in this application includes a receiver 1, a heating element 2, a housing 3, and a power supply component 5. 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 atomizes the aerosol generating substrate 4 in the receiving cavity 10 to form an aerosol that can be inhaled by the user. The aerosol generating substrate 4 can be a solid substrate such as a plant leaf aerosol matrix. 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.

[0041] like Figure 3 As shown, in one embodiment, the inner wall of the receiving cavity 10 is provided with a first air passage 11, which is used to introduce gas from outside the receiver 1 into the heating component 2.

[0042] Specifically, a first air passage 11 is formed between the aerosol generating substrate 4 and the inner wall of the receiving cavity 10, for guiding external gas to the heating element 2. When the user uses the aerosol generating device 100, the airflow flows from the first air passage 11 to one side of the heating element 2, and can directly reach the end face of the heating element 2 near the receiving cavity 10. It then flows back in the cavity between the receiver 1 and the heating element 2, and then the airflow enters the first air passage 11 and the aerosol generating substrate 4 from the end face of the heating element 2 to transport the heated aerosol to the suction nozzle section (not shown) for the user to inhale.

[0043] In one embodiment, the receiving cavity 10 is a cylindrical cavity, and the radial dimension of the receiving cavity 10 is larger than the radial dimension of the aerosol generating substrate 4, so that the aerosol generating substrate 4 can pass through the receiving cavity 10 to reach the heating component 2 and abut against the heating component 2. In other embodiments, the receiving cavity 10 may also be a prism cavity, a rectangular cavity, etc., and this application does not limit it in this way.

[0044] Please see Figures 4 to 6 , Figure 4 This is an exploded structural diagram of the heating component provided in this application. Figure 5 This is a three-dimensional structural diagram of the heating component provided in this application. Figure 6 yes Figure 5 A top view of the provided heating element.

[0045] In one embodiment, the heating component 2 includes a base 21 and a heating element 22 disposed on the base 21. The base 21 is located at one end of the receiving cavity 10, and the heating element 22 is inserted into the receiving cavity 10. A second air passage 23 is also provided on the end face of the base 21 facing the receiving cavity 10. The second air passage 23 communicates with a first air passage 11 and guides 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 surrounds 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.

[0046] Specifically, such as Figure 3 and Figure 5 As shown, the second air passage 23 is connected to the first air passage 11, allowing external gas to enter the base 21 from the first air passage 11, then enter the second air passage 23, and directly enter the aerosol generating substrate 4 from the second air passage 23 to heat the aerosol generating substrate 4 and improve atomization efficiency.

[0047] like Figure 6As shown, the converging groove 232 is 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, since the heating element 22 is inserted from the bottom end of the aerosol generating substrate 4 after the aerosol generating substrate 4 is inserted into the receiving cavity 10, and the cross-section of the aerosol generating substrate 4 is larger than the size of the converging groove 232, the converging groove 232 can be covered by the aerosol generating substrate 4, thereby allowing gas to also enter the aerosol generating substrate 4.

[0048] 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 radially around the converging slot 232, allowing the second air passage 23 to intake air uniformly. The sidewalls of the air intake slots 231 can be of equal width, irregular, or gradually narrow towards the converging slot 232. The 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 funnel-shaped air intake slot 231, which allows the airflow to converge better from the surrounding area to the center.

[0049] like Figure 5 As shown, the heating element 22 includes a heating column 221 and a pointed head 222. Unlike the flat structure of the heating element 22 in related technologies, the main body of the heating element 22 in this application is columnar, with the pointed head 222 at the end of the column away from the base 21. By designing the heating element as a heating column 221 and a pointed head 222, the heating element 22 can more easily enter or exit the aerosol generating matrix 4, and the blade adhesion is less likely to occur. At the same time, the columnar heating element 22 allows the aerosol generating matrix 4 to detach from the heating element 22 by rotation, making it easier to extract the aerosol generating matrix 4.

[0050] like Figure 4 and Figure 5 As 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.

[0051] In one embodiment, the outer side wall of the base 21 has a first step 211 and a second step 212, which are formed on the side of the outer side wall of the base 21 near the air inlet slot 231. The first step 211 communicates with a plurality of air inlet slots 231 to collect airflow from the receiver 1. The second step 212 is formed on the side of the outer side 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.

[0052] Specifically, both the first step 211 and the second step 212 are annular. The upper end face of the first step 211 is connected to multiple air inlet slots 231, allowing the airflow entering from the receiver 1 to converge at this end face before entering the air inlet slots 231 and the aerosol generating matrix 4. This ensures that the airflow entering the first air passage 11 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.

[0053] Please see Figures 7 to 9 , Figure 7 This is a schematic diagram of the receiver and heating component provided in one embodiment of this application. Figure 8 This is an exploded view of a receiver according to an embodiment of this application. Figure 9 yes Figure 7 Enlarged view of the partial structure of the provided receiver and heating component.

[0054] In one embodiment, the receiver 1 further includes an end cap assembly 13, which includes an end cap 131, an extractor 132, and a mounting member 133. The end cap 131 covers the extractor 132, and the end cap 131 has a receiving port 1311 corresponding to the port of the extractor 132. The receiving port 1311 is used to circumferentially position the aerosol generating substrate 4, and the receiving port 1311 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 1311 and housed in the receiving cavity 10. An air inlet gap (not shown) is formed between the receiving port 1311 and the aerosol generating substrate 4, or the end cap 131 may also have an air inlet hole (not shown) communicating with the cooling section 112.

[0055] Specifically, the receiving port 1311 is provided with a protrusion 13111 and an arc-shaped surface 13112 connected to the protrusion 13111. The protrusion 13111 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 13112 and the aerosol generating substrate 4, so that external gas can enter the receiving cavity 10. The gap between the arc-shaped surface 13112 and the aerosol generating substrate 4 can serve as an air inlet gap to allow external gas to enter.

[0056] like Figure 8As shown, the extractor 132 includes a receiving cavity 10, a mounting cavity 1321, and an extractor mounting base 1322. The mounting cavity 1321 is disposed on one side of the receiving cavity 10, and both the receiving cavity 10 and the mounting cavity 1321 are formed on the extractor mounting base 1322. Both the receiving cavity 10 and the mounting cavity 1321 are through holes that extend vertically, facilitating the entry and exit of gas. The edge of the extractor mounting base 1322 has a circumferentially arranged flange 13221, which surrounds the receiving cavity 10 and the mounting cavity 1321 within the extractor mounting base 1322. At the same time, the flange 13221 facilitates the connection between the extractor 132 and the mounting component 133, such as by snap-fitting or bonding. Mounting member 133 is sleeved on the outside of extractor 132, and mounting member 133 has a shape adapted to extractor 132 and a first through hole 1331 that can be sleeved on the outside of receiving cavity 10. The first through hole 1331 is sleeved on both receiving port 1311 and port of receiving cavity 10, so that aerosol generating matrix 4 can pass through the first through hole 1331, and gas in receiving cavity 10 can flow through the first through hole 1331.

[0057] Please see Figures 10 to 11 , Figure 10 This is a structural cross-sectional view of a receiver provided in another embodiment of this application. Figure 11 This is a partial exploded view of the receiver provided in another embodiment of this application.

[0058] In another embodiment, the receiver 1 includes a detachably connected receiving assembly 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 assembly 12, and cooperates with the receiving assembly 12 to define a heat preservation section 111.

[0059] 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 1311 corresponding to the port of the extractor 132. The receiving port 1311 is used to circumferentially position the aerosol generating substrate 4, and the receiving port 1311 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 1311 and housed in the receiving cavity 10. An air inlet gap 1330 is formed between the receiving port 1311 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 separately 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.

[0060] Specifically, the receiving port 1311 is provided with a protrusion 13111 and an arc-shaped surface 13112 connected to the protrusion 13111. The protrusion 13111 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 13112 and the aerosol generating substrate 4, so that external gas can enter the receiving cavity 10. The gap between the arc-shaped surface 13112 and the aerosol generating substrate 4 can serve as an air inlet slit 1330 to allow external gas to enter.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] In this embodiment, the extractor 132 includes a first extractor 1323 or a second extractor 1324, and the length of the first extractor 1323 is not equal to the length of the second extractor 1324, so that the extractor 132 has a different length from the heat preservation section 111 defined by the receiving component 12.

[0068] Specifically, the first extractor 1323 and the second extractor 1324 can have different heights, so that after the extractor 132 and the receiving assembly 12 are installed, they form insulation sections 111 of different lengths. In this embodiment, the length of the first extractor 1323 is greater than the length of the second extractor 1324, so that the length of the insulation section 111 defined by the first extractor 1323 and the receiving assembly 12 is less than the length of the insulation section 111 defined by the second extractor 1324 and the receiving assembly 12. Since the leaf segment 41 is disposed within the insulation section 111, the insulation section 111 needs to insulate the leaf segment 41. Therefore, the longer the length of the insulation section 111, the better the insulation effect on the leaf segment 41. In actual use, different lengths of the extractor 132 can be selected according to the specific product, and this application does not impose any restrictions on this.

[0069] In one embodiment, the base 21 and the through hole in the extractor 132 are spaced apart at the end facing the base 21.

[0070] Specifically, the spaced-apart base 21 and the through hole in the extractor 132 can form a cavity, within which a heat-insulating section 111 is formed. The extractor 132 has different lengths, resulting in heat-insulating sections 111 within the cavity having different lengths.

[0071] like Figure 7 and Figure 10 As shown, the inner wall of the receiving cavity 10 is provided with at least one rib 130. The rib 130 is used to position the aerosol generating substrate 4 and to guide the gas outside the receiver 1 to the heating component 2.

[0072] Specifically, the ribs 130 are disposed on the inner wall surface of the extractor 132, forming an air intake channel 110 between the aerosol generating substrate 4 and the extractor 132. This allows external gas to flow through the air intake channel 110 and reach the heating element 2, enabling the heating element 22 to heat the aerosol generating substrate 4 to form an aerosol. Simultaneously, the ribs 130 can fix the aerosol generating substrate 4, keeping it and the extractor 132 in a coaxial position and preventing misalignment. There can be one or more ribs 130. When multiple ribs 130 are provided, they need to be spaced apart and distributed circumferentially along the receiving cavity 10 to provide sufficient space for the aerosol generating substrate 4 to be inserted. The air intake channel 110 between two adjacent ribs 130 can form a first air passage 11 for introducing 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. The ribs can be positioned to contact the protrusion 13111 of the receiving port 1311, and preferably occupy half or no more than two-thirds of the inner wall of the extractor 132. The specific number and shape of the ribs 130 are not limited, as long as they allow for air intake channels 110 between them and allow the aerosol generating matrix 4 to pass through. This application does not impose any restrictions on this.

[0073] 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.

[0074] In one embodiment, such as Figure 7 and Figure 9As shown, an annular cavity 14 is formed between the end face of the base 21 facing the receiving cavity 10 and the receiver 1, and the annular cavity 14 surrounds the aerosol generating substrate 4. Specifically, the annular cavity 14 is formed on the end face of the extractor 132 facing the base 21, communicating with the end of the first air passage 11 near the base 21. Simultaneously, the annular cavity 14 surrounds the end of the aerosol generating substrate 4 near the base 21, and the aerosol generating substrate 4 is located at the center of the annular cavity 14. The air inlet groove 231 of the second air passage 23 also communicates with the annular cavity 14, allowing gas to flow back through the annular cavity 14 and then re-enter the aerosol generating substrate 4 from the bottom through the air inlet groove 231. The annular cavity 14 facilitates the flow of gas from the first air passage 11 and into the second air passage 23. The outer diameter of the annular cavity 14 is approximately the same as the end face of the base 21 near the extractor 132. The diameter of the end of the annular cavity 14 facing the base 21 is larger than that of the end located on the extractor 132, making the annular cavity 14 diverge towards the base 21, which is more conducive to the entry of gas. It can be understood that the annular cavity 14 can also be a groove formed from the end face of the extractor 132 facing the base 21, and the bottom surface of the groove has a through hole, which is the receiving cavity 10 of the receiver 1.

[0075] Please see Figures 12 to 13 , Figure 12 This is a schematic diagram of the structure of the first airway provided in this application. Figure 13 This is a schematic diagram of the connection structure of an embodiment of the heat-insulating section and leaf segment provided in this application.

[0076] In one embodiment, the containment cavity 10 includes a heat-insulating section 111 and a cooling section 112 that are connected. The heat-insulating section 111 is disposed relative to the adjacent heating component 2, and the cooling section 112 is disposed relative to the adjacent port of the containment cavity 10. In the axial direction along the containment cavity 10, that is, in the direction along which the aerosol generating matrix 4 is inserted into the containment cavity 10, the cross-sectional area of ​​the heat-insulating section 111 is larger than the cross-sectional area of ​​the cooling section 112.

[0077] Specifically, the heat-insulating section 111 and the cooling section 112 can form a first airway 11 disposed within the receiving cavity 10, and the heat-insulating section 111 and the cooling section 112 are two consecutive airway sections. The heat-insulating section 111 is disposed adjacent to the heating element 2, specifically adjacent to the end face of the base 21 near the receiving cavity 10, so that the base 21 can cover one end of the heat-insulating section 111. 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 section 42 inserted into the receiving cavity 10. The heat-insulating section 111 can cover at least a portion of the leaf segment 41, and the cooling section 112 can cover at least a portion of the extraction section 42. The base 21 can be used to support one end of the leaf segment 41, so that the leaf segment 41 abuts against the base 21 to fix the aerosol generating substrate 4. The bottom end face of the aerosol generating substrate 4 is close to the base 21. A heat-insulating section 111 is located on the side close to the base 21, thus heat-insulating the side of the aerosol generating substrate 4 near the base 21, i.e., heat-insulating the leaf segment 41 of the aerosol generating substrate 4. The heating element 22 is inserted into the receiving cavity 10 and can be further inserted into the leaf segment 41 to heat the leaf segment 41. The inner cavity of the heat-insulating section 111 at least partially overlaps with the leaf segment 41. The heat-insulating section 111 can completely cover the leaf segment 41 or only cover a portion of it. The heating element 22 can be inserted into a portion of the leaf segment 41 or its entire length to improve the heating effect; this application does not limit this.

[0078] like Figure 12 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.

[0079] like Figure 13As 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 one-third or one-half, etc., and this application does not limit this. However, in order to ensure the insulation effect of the insulation section 111 on the leaf segment 41, the ratio of the length of the leaf segment 41 covered by the insulation 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 insulation effect of the insulation section 111 on the leaf segment 41 is reduced compared to the insulation section 111 completely covering the leaf segment 41, resulting in less heat transferred to the extraction section 42 of the aerosol generating matrix 4, thereby causing the temperature of the extraction section 42 of the aerosol generating matrix 4 to drop and cool down faster. For the user, the aerosol inhalation temperature is lower, which can improve the user's inhalation experience.

[0080] The cooling section 112 can cover at least a portion of the extraction section 42 of the aerosol generating matrix 4. As described above, the cooling section 112 is positioned relative to the port of the adjacent receiving cavity 10, and the heating element 22 is not inserted into the extraction section 42, so that the temperature of the extraction section 42 does not rise. The cross-sectional area of ​​the cooling section 112 is smaller than that of the heat preservation section 111. At this time, the air flow velocity is faster at this location, resulting in a higher convective heat transfer coefficient, thereby cooling the extraction section 42 of the aerosol generating matrix 4 and reducing the inlet temperature of the aerosol.

[0081] like Figure 12 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 located outside the outer shell 3, making it easier for the user to inhale. Simultaneously, because the mouthpiece section 43 has been cooled by the extraction section 42, the temperature of the aerosol entering the user's mouth is significantly reduced, improving the taste of the aerosol and further enhancing the user experience.

[0082] 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.

[0083] like Figure 1 , Figure 2 and Figure 8As shown, in one embodiment, the outer casing 3 includes a first housing 31 and a second housing 32 that are connected to each other. The first housing 31 and the second housing 32 are disposed outside the power supply assembly 5. The first housing 31 is disposed on the side of the second housing 32 closer to the end cap assembly 13. The end cap 131 of the end cap assembly 13 has a first connecting end 1312 and a second connecting end 1313. The height of the first connecting end 1312 is less than the height of the second connecting end 1313, and the first connecting end 1312 and the second connecting end 1313 are connected by a smooth arc-shaped connecting surface, such that the first connecting end 1312 is located on the side away from the outer casing 3 relative to the second connecting end 1313. The first housing 31 is connected to the first connecting end 1312 of the end cap 131 and the arc-shaped connecting surface of the first connecting end 1312 and the second connecting end 1313. The second housing 32 is connected to the second connecting end 1313, so that the first housing 31, the second housing 32 and the end cap assembly 13 together constitute the external shape of the elliptical cylinder of the aerosol generating device 100. In other embodiments, the specific shapes of the end cap assembly 13 and the housing 3 can be set as needed, and this application does not limit them.

[0084] In one embodiment, such as Figure 2 As shown, the second housing 32 also has an opening 321, which can be used to install the switch 6 of the aerosol generating device 100. A bracket 52 is disposed inside the housing 3 and is used to install and support components such as the heating element 2, battery 51, and circuit board 54. The bracket 52 has a support cavity 521 adapted to the shape of the heating protective shell 214. This support cavity 521 is fitted onto the outside of the heating protective shell 214 and snaps into the bracket 52 to support the heating element 2. A heat insulation component 134 is also provided outside the support cavity 521. This heat insulation component 134 can protect the heat of the heating element 2 to reduce heat loss. Simultaneously, the heat insulation component 134 abuts against the extractor 132, sealing the extractor 132 and the heating element 2. 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 matrix 4 to form an aerosol for the user to inhale.

[0085] like Figure 2 As 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.

[0086] The aerosol generating device disclosed in this application includes an extractor and a heating element. The extractor has an axially penetrating through-hole. The heating element includes a base and a heating element disposed on the base. The base is disposed at one end of the through-hole and, together with the through-hole, defines a receiving cavity for accommodating the aerosol generating matrix. The heating element is inserted into the aerosol generating matrix and heats the aerosol generating matrix. The extractor in this application has a vertically penetrating through-hole. The extractor and the heating element together form the receiving cavity for the aerosol generating matrix, which simplifies the structure of the extractor. Furthermore, external air can directly enter the heating element through the through-hole to heat the aerosol generating matrix, resulting in a short airflow path and reducing the likelihood of blockage.

[0087] 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: A receiver includes a detachably connected receiving assembly and an end cap assembly, the end cap assembly and the receiving assembly cooperating to form a receiving cavity; wherein, the end cap assembly includes an end cap and an extractor, the extractor being detachably connected to the end cap; the extractor has an axially penetrating through-hole; A heating assembly includes a base and a heating element disposed on the base. The base is disposed at one end of the through hole. The base connects to the receiving assembly and, together with the through hole, defines a receiving cavity for receiving an aerosol generating matrix. One end of the heating element is inserted into the receiving cavity for inserting into the aerosol generating matrix and heating the aerosol generating matrix. A 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.

2. The aerosol generating device according to claim 1, characterized in that, The inner wall of the receiving cavity is provided with a first air passage; The base has a second air passage on its end face facing the receiving cavity. The second air passage is connected to the first air passage so that external gas can enter the aerosol generating matrix through the first air passage and the second air passage.

3. The aerosol generating device according to claim 2, characterized in that, An annular cavity is formed between the end face of the base facing the receiving cavity and the extractor. The annular cavity surrounds the aerosol generating matrix. One end of the first airway and one end of the second airway are both connected to the annular cavity.

4. The aerosol generating device according to claim 2, 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 width of the air intake groove is constant or gradually narrows from the edge of the base to the converging groove.

8. The aerosol generating device according to claim 2, characterized in that, The first airway includes a heat-insulating section and a cooling section that are connected. The heat-insulating section is disposed relatively close to the base, and the cooling section is disposed relatively close to the port of the receiving cavity. In the axial direction along the receiving cavity, the cross-sectional area of ​​the heat-insulating section is larger than that of the cooling section.

9. The aerosol generating apparatus according to claim 8, characterized in that, The aerosol matrix includes a leaf segment and an extraction segment for insertion into the containment cavity, the heat preservation 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 element for insertion into the leaf segment.

10. The aerosol generating apparatus according to claim 8, characterized in that, The through hole includes the heat-insulating section and the cooling section; Alternatively, the end of the through hole facing the base may define the heat preservation section with the base, and the side of the through hole away from the base may be the cooling section.

11. The aerosol generating apparatus according to claim 8, characterized in that, The extractor cooperates with the receiving assembly to define the heat preservation section within the receiving cavity.

12. The aerosol generating apparatus according to claim 11, characterized in that, The extractor includes a first extractor or a second extractor, and the length of the first extractor is not equal to the length of the second extractor, such that the extractor has a different length from the heat-insulating section defined by the receiving component.

13. The aerosol generating apparatus according to claim 1, characterized in that, The inner wall of the through hole is provided with at least one rib, which is used to position and clamp the aerosol generating matrix.

14. The aerosol generating apparatus according to claim 13, characterized in that, The number of the protruding ribs is multiple and they are spaced apart, and the multiple protruding ribs are distributed along the circumference of the receiving cavity; The ribs are also provided with guide surfaces, which are positioned toward the port of the receiving cavity to guide the aerosol generating matrix into the positioning space defined by the ribs.

15. The aerosol generating apparatus according to claim 1, characterized in that, The base is placed over one end of the through hole.

16. The aerosol generating apparatus according to claim 1, characterized in that, The base and the extractor are spaced apart at one end facing the base.

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