Aerosol-generating device

Abstract

The utility model relates to the technical field of aerosol, and discloses an aerosol generating device which is used for heating a low-temperature cigarette to generate aerosol, an insertion opening in the top of a heating main body is communicated with a heating cavity, and the low-temperature cigarette can be inserted into the insertion opening or a cleaning tool can extend into the heating cavity to clean the heating cavity. Solid residues or condensate is prevented from being accumulated in the heating chamber to influence the heating efficiency; external air enters the heating cavity through the air inlet along the air inlet channel and carries aerosol to escape to be sucked by a user, solid residues or condensate can also enter the first section of the air inlet channel, and the bottom of the heating body directly faces the cleaning opening of the heating cavity and is communicated with the first section. The cleaning tool can enter the first section through the cleaning opening for cleaning, so that the air flow and the suction taste in the heating chamber are ensured; the bottom cover is detachably connected with the heating main body, when a user uses the aerosol generating device to suck, the bottom cover blocks the cleaning opening, solid residues or condensate are prevented from falling off, and the use experience of the user is improved.

Description

Technical Field

[0004]

[0001] The utility model relates to the technical field of aerosol, in particular to an aerosol generating device. Background Art

[0002] For example, traditional tobacco generating matrices such as cigarettes and cigars need to burn tobacco during use to generate tobacco smoke and then generate a certain amount of aerosol. However, the combustion at a high temperature of 600°C - 800°C will produce many harmful substance by-products, such as tar, which is harmful to the health of users. In the prior art, there already exist solid matrices that release compounds by heating without burning (Heat Not Burning, HNB) to replace these traditional tobacco generating matrices. Aerosol can be generated by heating at about 350°C, and the generation of harmful substances will be relatively reduced.

[0003] The heating device supporting such solid matrices adopts an aerosol generating device that heats without burning. By heating the solid matrix to a temperature at which aerosol can be generated but not enough to burn, aerosol required by users can be generated without burning. The aerosol generating device usually includes a heating chamber and an air intake passage. The heating chamber is used to accommodate and heat the solid matrix, and the air intake passage is used to introduce external air into the solid matrix. <00,00008>

[0004] With the long-term use of the aerosol generating device, solid residues remaining after heating the solid matrix will accumulate in the heating chamber and the air intake passage, or condensate generated in the heating chamber during the heating process will flow back into the air intake passage. For the existing aerosol generating devices, it is not convenient to clean their interiors. Excessive accumulation of solid residues or condensate in the heating chamber will affect the heating efficiency of the aerosol generating device and the air flow rate entering the heating chamber, thus affecting the user experience. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an aerosol generating device that is adapted to low-temperature cigarettes, is convenient to clean, has high aerosol production efficiency, and has good抽吸口感 (the taste during suction) and user experience.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An aerosol generating device for heating low-temperature cigarettes to generate aerosol, the aerosol generating device includes:

[0008] It should be noted that the Chinese phrase "抽吸口感" is directly translated as "the taste during suction" here, but it might be better to use a more accurate and industry-specific term if available. Also, the specific placeholders and tags are preserved as required.The heating body includes a heating chamber. An insertion port is located at the top of the heating body and communicates with the heating chamber. A portion of the low-temperature cigarette can be placed inside the heating chamber through the insertion port. The heating body also has an air inlet for allowing external air to enter the heating chamber. An air intake channel is provided between the heating chamber and the air inlet. A cleaning port is located at the bottom of the heating body, directly opposite the heating chamber. The air intake channel includes a first section, which is vertically positioned at the bottom of the heating chamber and communicates with the cleaning port.

[0009] A bottom cover, which is detachably connected to the heating body, so that the bottom cover selectively blocks the cleaning port.

[0010] As an optional technical solution for the aerosol generating device, the bottom cover is provided with a soft rubber part. When the bottom cover is connected to the heating body, part of the soft rubber part extends into the cleaning port and is press-fitted with the cleaning port.

[0011] As an optional technical solution for the aerosol generating device, the bottom cover is provided with a snap-fit ​​part, the snap-fit ​​part includes a first extension part and a second extension part, the first extension part extends obliquely from the surface of the bottom cover, the second extension part extends horizontally from the first extension part, the bottom of the heating body is provided with a snap-fit ​​groove, and the second extension part can be selectively inserted into the snap-fit ​​groove.

[0012] As an optional technical solution for the aerosol generating device, the bottom of the heating body is provided with a receiving groove. When the second extension is inserted into the snap-fit ​​groove, the bottom cover is placed in the receiving groove. The bottom wall of the receiving groove is provided with a groove, and the snap-fit ​​groove is defined by the groove and the side wall of the receiving groove.

[0013] As an optional technical solution for the aerosol generating device, a pry-out gap is left between the bottom cover and the side wall of the receiving tank.

[0014] As an optional technical solution for the aerosol generating device, the bottom cover includes a structural layer, an outer decorative layer, and an adhesive backing layer located between the structural layer and the outer decorative layer, wherein the adhesive backing layer bonds the structural layer and the outer decorative layer.

[0015] As an optional technical solution for the aerosol generating device, a magnetic part is provided at the bottom of the heating body, and the material of the structural layer is a magnetic material that can be magnetized by the magnetic part.

[0016] As an optional technical solution for the aerosol generation device, the air intake channel further includes a second section and a third section, wherein the second section is perpendicularly connected to the first section, and the third section is connected to the second section and the air intake.

[0017] As an optional technical solution for the aerosol generating device, the second section or the third section is provided with a temperature sensing element.

[0018] As an optional technical solution for the aerosol generating device, the aerosol generating device further includes a top cover, which is slidably disposed on the top of the heating body to selectively cover the insertion port.

[0019] The beneficial effects of this utility model are:

[0020] The aerosol generating device provided by this utility model is used to heat low-temperature cigarettes to generate aerosols. It includes a heating body and a bottom cover. The heating body is provided with a heating chamber. An insertion port is opened at the top of the heating body and communicates with the heating chamber. The filter of the low-temperature cigarette is exposed outside the insertion port. The solid tobacco matrix of the low-temperature cigarette can be placed in the heating chamber through the insertion port and heated to generate aerosols. The heating body is provided with an air inlet for external air to enter the heating chamber. An air intake channel is provided between the heating chamber and the air inlet. When the user inhales the low-temperature cigarette through the filter, external air enters the aerosol generating device through the air inlet and enters the heating chamber along the air intake channel. Then it enters the solid tobacco matrix of the low-temperature cigarette and finally carries the generated aerosols out for the user to inhale. This avoids the formation of a negative pressure space in the heating chamber during the user's inhalation process, which would increase the inhalation resistance. At the same time, it can achieve the effect of exchanging airflow temperature to reduce the aerosol temperature.

[0021] With prolonged use of the aerosol generating device, solid residues from the solid tobacco matrix of low-temperature cigarettes, which remain after heating, or condensate produced during the heating process, will accumulate in the heating chamber. When no low-temperature cigarettes are inserted, cleaning tools can be inserted into the aerosol generating device to clean the heating chamber and prevent excessive accumulation of solid residues or condensate, which could affect the heating efficiency of the aerosol generating device.

[0022] Similarly, a cleaning port is provided at the bottom of the heating body, directly opposite the heating chamber. The air intake channel includes a first section, which is vertically set at the bottom of the heating chamber and connected to the cleaning port. Since the air intake channel is connected to the heating chamber, solid residues or condensate will enter the first section of the air intake channel, thereby affecting the airflow into the heating chamber and thus affecting the smoking taste of low-temperature cigarettes. By providing a cleaning port, cleaning tools can enter the first section of the air intake channel to clean and promptly remove solid residues or condensate that have fallen into the first section.

[0023] The bottom cover is detachably connected to the heating body, allowing it to selectively block the cleaning port. When the user needs to use the aerosol generator for suction, meaning cleaning of the first section of the air intake channel is not required, the bottom cover can be connected to the heating body to block the cleaning port. Solid residue or condensate falling into the first section cannot fall out of the aerosol generator during suction because the cleaning port is blocked, thus improving the user experience. When the user needs to clean the first section of the air intake channel, the bottom cover can be removed from the heating body to expose the cleaning port. The user can then insert cleaning tools through the cleaning port into the aerosol generator to clean the first section of the air intake channel. Attached Figure Description

[0024] Figure 1 This is an exploded view of the aerosol generating device provided in a specific embodiment of this utility model;

[0025] Figure 2 This is a cross-sectional view of the aerosol generating device provided in a specific embodiment of this utility model;

[0026] Figure 3 This is a partially enlarged cross-sectional view from another perspective of the aerosol generating device provided in a specific embodiment of this utility model;

[0027] Figure 4 This is another exploded view of the aerosol generating device provided in a specific embodiment of this utility model;

[0028] Figure 5 This is a diagram showing the bottom cover of the aerosol generating device provided in a specific embodiment of the present invention assembled with the heating body in an intermediate state.

[0029] Figure 6 This is a three-dimensional sectional view of the connection between the heating body and the bottom cover of the aerosol generating device provided in a specific embodiment of this utility model.

[0030] Figure 7 This is a schematic diagram of the structure of the bottom cover of the aerosol generating device provided in a specific embodiment of this utility model;

[0031] Figure 8 This is a front view of the bottom cover of the aerosol generating device provided in a specific embodiment of this utility model;

[0032] Figure 9 This is an exploded view of the bottom cover of the aerosol generating device provided in a specific embodiment of this utility model;

[0033] Figure 10 This is a schematic diagram of the structure of the upper cover of the aerosol generating device provided in a specific embodiment of this utility model.

[0034] In the picture:

[0035] R1, intake route; R11, first section; R12, second section; R13, third section;

[0036] 10. Heating element; 20. Heating component; 30. Main board; 40. Battery cell;

[0037] 100. Heating body; 110. First end; 111. Insertion port; 120. Second end; 121. Air inlet; 122. Cleaning port; 130. Snap-fit ​​groove; 140. Receiving groove; 141. Side wall; 142. Bottom wall; 1421. Groove; 143. Pry-out gap;

[0038] 200, bottom cover; 210, snap-fit ​​part; 211, first extension; 212, second extension; 221, first side; 222, second side; 220, structural layer; 230, outer trim layer; 240, adhesive backing layer; 250, through hole; 260, soft rubber part;

[0039] 270. Temperature sensing element; 300. Top cover; 310. Toggle handle; 400. Low-temperature cigarette. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] like Figures 1 to 10 As shown, this utility model discloses an aerosol generating device for heating a low-temperature cigarette 400 to generate aerosol. The aerosol generating device includes a heating body 100 and a bottom cover 200. A heating tube 10 is disposed inside the heating body 100. The heating tube 10 is hollow to define a heating chamber, which is used to house the low-temperature cigarette 400 used in conjunction with the aerosol generating device. An insertion port 111 is provided at the top of the heating body 100. The insertion port 111 communicates with the heating chamber, and the filter of the low-temperature cigarette 400 is exposed outside the insertion port 111. The solid tobacco matrix portion of the low-temperature cigarette 400 can be placed in the heating chamber through the insertion port 111, and the heating chamber can heat the solid tobacco matrix portion of the low-temperature cigarette 400, thereby causing the active substances in the solid tobacco matrix portion of the low-temperature cigarette 400 to volatilize and generate aerosol.

[0045] A heating element 20 is attached to the outer wall of the heating tube 10. The heating element 20 can be a mesh resistive heating element, a heating film, or the heating material can be printed onto the outer wall of the heating tube 10 to form the heating element 20 by thick film printing. A main board 30 is also provided inside the heating body 100. The heating element 20 is electrically connected to the main board 30. The controller on the main board 30 can control the battery cell 40 to provide power to the heating element 20. After the heating element 20 is powered on, it generates heat, which can be transferred to the heating chamber to heat the solid tobacco matrix part of the low-temperature cigarette 400.

[0046] In some embodiments, the aerosol generating device can also heat the solid tobacco matrix portion of the low-temperature cigarette 400 via electromagnetic induction heating. An induction coil surrounds the heating tube 10, and the controller controls the battery cell 40 to supply alternating current to the induction coil. Under the influence of the alternating current, the induction coil generates a changing magnetic field. This changing magnetic field penetrates the heating tube 10, inducing eddy currents within it. The heating tube 10 generates heat under the influence of the eddy current effect and the hysteresis effect, thereby heating the solid tobacco matrix portion of the low-temperature cigarette 400 within the heating chamber.

[0047] The suitable material for the heating element 10 can be any one of graphite, molybdenum, silicon carbide, stainless steel, niobium, aluminum, nickel, iron, copper, nickel-containing compounds, titanium, and metal composites. In some embodiments, to better induce eddy currents and improve heating efficiency, the material of the heating element 10 is preferably a ferromagnetic material or composed of ferromagnetic materials, such as ferritic iron, ferromagnetic alloys (e.g., ferromagnetic steel or stainless steel), ferromagnetic particles, and ferrite.

[0048] The solid tobacco matrix of the low-temperature cigarette 400 is preferably made of tobacco-containing materials that release volatile compounds when heated; alternatively, it can be a non-tobacco material suitable for electric heating and smoking, which may include one or more of the following: vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, powder, granules, fragments, strips, or sheets; or it may contain additional tobacco or non-tobacco volatile flavor compounds to be released when heated. The low-temperature cigarette 400 is a heated tobacco product, a basic consumable used for storage and aerosol generation in conjunction with an aerosol generating device. It consists of a filter, a central tube, and a solid matrix, all wrapped and fixed by an outer layer of cigarette paper. Its shape and structure more closely resemble traditional cigarettes, providing a good alternative to smoking and making it more competitive than products such as electronic cigarette cartridges.

[0049] The heating body 100 is also provided with an air inlet 121, which is used to allow outside air to enter the heating chamber. An air intake channel is formed between the heating chamber and the air inlet 121. Figure 2 As shown by the air intake route R1 indicated by the arrow, when the user inhales the low-temperature cigarette 400 through the filter, the outside air enters the aerosol generating device through the air intake 121, and then enters the heating chamber along the air intake channel. It then enters the solid tobacco matrix part of the low-temperature cigarette 400, and finally escapes with the generated aerosol for the user to inhale.

[0050] In some embodiments, such as Figure 1 and Figure 2As shown, the heating body 100 has a first end 110 and a second end 120 arranged opposite to each other along its length. The first end 110, i.e., the top of the heating body 100, is provided with an insertion port 111 for the solid tobacco matrix portion of the low-temperature cigarette 400 to enter the heating chamber. With prolonged use of the aerosol generating device, solid residues remaining after heating of the solid tobacco matrix portion of the low-temperature cigarette 400, or condensate generated during the heating process, will accumulate in the heating chamber. When the low-temperature cigarette 400 is not inserted, the insertion port 111 can also serve as a convenient cleaning tool. Cleaning tools can be inserted into the aerosol generating device through the insertion port 111 to clean the heating chamber, preventing excessive accumulation of solid residues or condensate in the heating chamber, which would affect the heating efficiency of the aerosol generating device.

[0051] The aerosol generating device also includes a top cover 300. When the user does not need to use the aerosol generating device or does not need to clean the heating chamber, the top cover 300 can be connected to the heating body 100 to block the insertion port 111 and prevent dust in the air from falling into the heating chamber. When the user needs to use the aerosol generating device and insert the low-temperature cigarette 400, or needs to clean the heating chamber, the top cover 300 can be removed from the heating body 100 to expose the insertion port 111.

[0052] For example, the top cover 300 is slidably disposed on the top of the heating body 100 to selectively cover the insertion port 111. To distinguish between the covered and uncovered states of the top cover 300 and to limit the sliding of the top cover 300, a first magnetic element is embedded within the top cover 300, and a second magnetic element is disposed on the sliding path of the heating body 100. The first and second magnetic elements are magnetically repelled. The first magnetic element will choose to remain on either side of the second magnetic element along the sliding direction, depending on the user's sliding motion. When the first magnetic element is on one side of the second magnetic element, the top cover 300 covers the insertion port 111; when the first magnetic element is on the other side of the second magnetic element, the top cover 300 does not completely cover the insertion port 111, ensuring that the top cover 300 can maintain a covered or uncovered state without arbitrarily switching between them. In some embodiments, such as... Figure 1 As shown, the top cover 300 is also provided with a toggle handle 310, which allows the user to slide the top cover 300 by pinching the toggle handle 310.

[0053] The second end 120 (i.e., the bottom of the heating body 100) is provided with an air inlet 121 for external air to enter the heating body 100. The bottom of the heating body 100 is also provided with a cleaning port 122, which faces the heating chamber. The air intake channel includes a first section R11, which is vertically arranged at the bottom of the heating chamber and communicates with the cleaning port 122. Similarly, since the air intake channel is connected to the heating chamber, solid residues or condensate will enter the first section R11 of the air intake channel, thereby affecting the airflow into the heating chamber and thus affecting the smoking taste of the low-temperature cigarette 400. By providing the cleaning port 122, an inlet for cleaning tools to enter the heating body 100 is provided, allowing the cleaning tools to enter the first section R11 of the air intake channel for cleaning and timely removal of solid residues or condensate that have fallen into the first section R11.

[0054] The bottom cover 200 is detachably connected to the heating body 100 so that the bottom cover 200 selectively blocks the cleaning port 122. When the user needs to use the aerosol generating device for suction, that is, when it is not necessary to clean the first section R11 of the air intake channel, the bottom cover 200 can be connected to the heating body 100, so that the bottom cover 200 blocks the cleaning port 122 and exposes the air intake port 121. Figure 6 As shown, outside air can enter the aerosol generating device through the air inlet 121. Solid residues or condensate that fall into the first section R11 cannot fall out of the aerosol generating device during the suction process because the cleaning port 122 is blocked, thus improving the user experience. When the user needs to clean the first section R11 of the air intake channel, the bottom cover 200 can be removed from the heating body 100 to expose the cleaning port 122. The user can then insert cleaning tools into the aerosol generating device through the cleaning port 122 to clean the first section R11 of the air intake channel. In this embodiment, the aerosol generating device has both an upper cover 300 and a bottom cover 200, which can respectively cover the insertion port 111 and the cleaning port 122; the insertion port 111 and the cleaning port 122 on the aerosol generating device can respectively allow cleaning tools to enter the heating body 100 from the first end 110 and the second end 120, and respectively clean the heating chamber and the first section R11 of the air inlet channel, making the cleaning of the aerosol generating device more comprehensive and thorough, and further improving the use effect of the aerosol generating device.

[0055] In some embodiments, such as Figure 2 , Figure 6 and Figure 7As shown, a soft rubber part 260 is also provided on the bottom cover 200. When the bottom cover 200 is connected to the heating body 100, at least a portion of the soft rubber part 260 extends into the cleaning port 122 and is press-fitted with the cleaning port 122, thereby sealing the cleaning port 122 and preventing the condensate formed during the heating process from leaking out of the cleaning port 122.

[0056] In some embodiments, the bottom cover 200 is provided with a through hole 250. When the bottom cover 200 is connected to the heating body 100, the through hole 250 communicates with the air inlet 121, thereby exposing the air inlet 121.

[0057] like Figure 3 , Figure 7 and Figure 8 As shown, a snap-fit ​​portion 210 is provided on the surface of the bottom cover 200. The snap-fit ​​portion 210 includes a first extension portion 211 and a second extension portion 212. The first extension portion 211 extends obliquely from the surface of the bottom cover 200, and the second extension portion 212 extends horizontally from the first extension portion 211. A snap-fit ​​groove 130 is provided in the heating body 100. The snap-fit ​​groove 130 allows the second extension portion 212 to be selectively inserted, which facilitates the disassembly and assembly of the bottom cover 200, thereby improving the user experience.

[0058] In some embodiments, a third magnetic element may be provided in the heating body 100 and a fourth magnetic element may be provided in the bottom cover 200. The bottom cover 200 and the heating body 100 can be magnetically connected by the mutual magnetic attraction of the third magnetic element and the fourth magnetic element. The bottom cover 200 and the heating body 100 are configured to be magnetically connected, which stabilizes the assembly of the two and further facilitates the disassembly and assembly of the bottom cover 200.

[0059] When it is necessary to connect the bottom cover 200 to the heating body 100, first insert the second extension 212 into the snap-fit ​​groove 130. At this time, the bottom cover 200 is in an inclined state, as shown in the figure below. Figure 5 As shown in the diagram, the bottom cover 200 and the heating body 100 are then magnetically attracted together under the action of magnetic attraction, with the bottom cover 200 in a horizontal position, as specifically as shown in the diagram. Figure 6 As shown in the diagram. When it is necessary to remove the bottom cover 200 from the heating body 100, only a small force needs to be applied to separate the bottom cover 200 from the heating body 100 at a certain angle, and then the bottom cover 200 can be detached from the snap-fit ​​groove 130. Through this embodiment, the bottom cover 200 can be easily removed from the heating body 100, reducing the difficulty of disassembling the bottom cover 200 and thus improving the user experience. Furthermore, through the cooperation of the snap-fit ​​part 210 and the snap-fit ​​groove 130, this embodiment can avoid the risk of the bottom cover 200 falling off when the bottom cover 200 and the heating body 100 are directly connected by magnetic attraction.

[0060] In some embodiments, the heating body 100 is provided with a magnetic element, and the material used to make the bottom cover 200 is at least partially a magnetic material that can be magnetized by the magnetic element. Thus, when the bottom cover 200 is connected to the heating body 100, the bottom cover 200 can be at least partially magnetized by the magnetic element, thereby making the bottom cover 200 and the heating body 100 magnetically connected.

[0061] Specifically, such as Figure 8 As shown, the bottom cover 200 has a first side 221 and a second side 222 disposed opposite to each other along its length direction. The snap-fit ​​portion 210 is disposed adjacent to the first side 221 or the second side 222, thereby facilitating the bottom cover 200 to remain in contact with the heating body 100 under the action of magnetic attraction.

[0062] In some embodiments, the second extension 212 extends beyond the edge of the first side 221 or the second side 222 to facilitate insertion of the second extension 212 into the snap-fit ​​groove 130 of the heating body 100.

[0063] In some embodiments, such as Figure 4 As shown, the bottom of the heating body 100 is also provided with a receiving groove 140 for receiving the bottom cover 200. That is, when the bottom cover 200 is connected to the heating body 100 and the second extension 212 is inserted into the snap-fit ​​groove 130, the bottom cover 200 is received in the receiving groove 140, which makes the surface of the bottom cover 200 and the surface of the heating body 100 remain on the same plane, which is beneficial to improve the overall appearance of the aerosol generating device and maintain its smoothness.

[0064] Furthermore, in some embodiments, the receiving groove 140 has a sidewall 141 and a bottom wall 142, the bottom wall 142 being provided with a groove 1421, the groove 1421 defining a snap-fit ​​groove 130 with the sidewall 141. Also, in some embodiments, such as Figure 6 As shown, when the bottom cover 200 is housed in the receiving groove 140, a preset pry gap 143 is maintained between the bottom cover 200 and the side wall 141 of the receiving groove 140. The pry gap 143 is used for the user's fingers to insert, thereby making it convenient for the user to remove the bottom cover 200 from the receiving groove 140.

[0065] Furthermore, in some embodiments, such as Figure 9As shown, the bottom cover 200 includes a structural layer 220 that can be magnetized by a magnetic component, an outer decorative layer 230 covering the structural layer 220, and an adhesive backing layer 240 located between the structural layer 220 and the outer decorative layer 230. The adhesive backing layer 240 is used to bond the structural layer 220 and the outer decorative layer 230. Since the outer decorative layer 230 covers the structural layer 220, it can serve as part of the outer shell of the aerosol generating device, and its material can be specifically set according to the outer shell material of the aerosol generating device. This method can maintain the consistency of the overall outer shell of the aerosol generating device, which is beneficial to improving the overall appearance of the aerosol generating device. In this embodiment, when other outer shell parts of the aerosol generating device are made of plastic, the outer decorative layer 230 is also made of plastic. This takes into account and investigates the user's preferred feel and tactile temperature, improving the product competitiveness of the aerosol generating device, and also has a certain shock absorption effect, which can protect the internal structure and service life of the aerosol generating device. The material of the structural layer 220 can be a metallic material or a ferromagnetic material, such as any one of iron, nickel, cobalt, etc.

[0066] In some embodiments, the bottom cover 200 may also be made entirely of magnetic materials, such as the aforementioned ferromagnetic materials such as iron, nickel, and cobalt.

[0067] In some embodiments, such as Figure 2 As shown, the air intake channel also includes a second section R12 and a third section R13. The first section R11 is connected to the cleaning port 122 and the heating chamber in a straight line. The second section R12 is perpendicularly connected to the first section R11. The third section R13 is connected to the second section R12 and the air intake port 121. This also prevents solid residues or condensate falling into the first section R11 from falling further into the second section R12. Users only need to clean the first section R11 of the air intake channel, without needing to clean the second section R12 and the third section R13.

[0068] And, in some embodiments, please continue to refer to Figure 2 A temperature sensing element 270 is installed in the second section R12 or the third section R13. When the aerosol generating device starts heating, the internal temperature of the aerosol generating device begins to rise, which causes the temperature sensing element 270 to sense a corresponding increase in temperature. After heating for a preset time, the temperature of the solid tobacco matrix of the low-temperature cigarette 400 reaches the volatilization temperature. At this time, the user can inhale through the filter of the low-temperature cigarette 400. External cold air enters the air intake channel with the user's inhalation action, which causes the temperature sensing element 270 to sense the external cold air and change the sensed temperature. This temperature change is further fed back to the controller, which can confirm that the user has inhaled based on the temperature change, and thus the controller can count the number of puffs.

[0069] In this embodiment, the temperature sensing element 270 is disposed in the second section R12 or the third section R13, which can also prevent the condensate formed during the heating process from dripping onto the temperature sensing element 270, thereby affecting the sensitivity of the temperature sensing element 270.

[0070] The temperature sensing element 270 can be any of the following: a thermocouple, a thermistor, or a semiconductor-based temperature sensor.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An aerosol generating apparatus, characterized in that, For heating low-temperature cigarettes (400) to generate aerosols, the aerosol generating apparatus includes: A heating body (100) is provided, wherein a heating chamber is provided inside the heating body (100), and an insertion port (111) is provided on the top of the heating body (100), the insertion port (111) is connected to the heating chamber, and a portion of the low-temperature cigarette (400) can be placed in the heating chamber through the insertion port (111); the heating body (100) is provided with an air inlet (121), the air inlet (121) is used to allow external air to enter the heating chamber, an air intake channel is provided between the heating chamber and the air inlet (121), and a cleaning port (122) is provided at the bottom of the heating body (100) directly opposite the heating chamber, the air intake channel includes a first section (R11), the first section (R11) is vertically arranged at the bottom of the heating chamber and is connected to the cleaning port (122); A bottom cover (200) is detachably connected to the heating body (100) so that the bottom cover (200) selectively blocks the cleaning port (122).

2. The aerosol generating apparatus according to claim 1, characterized in that, The bottom cover (200) is provided with a soft rubber part (260). When the bottom cover (200) is connected to the heating body (100), a portion of the soft rubber part (260) extends into the cleaning port (122) and is press-fitted with the cleaning port (122).

3. The aerosol generating apparatus according to claim 1, characterized in that, The bottom cover (200) is provided with a snap-fit ​​portion (210), which includes a first extension portion (211) and a second extension portion (212). The first extension portion (211) extends obliquely from the surface of the bottom cover (200), and the second extension portion (212) extends horizontally from the first extension portion (211). The bottom of the heating body (100) is provided with a snap-fit ​​groove (130), and the second extension portion (212) can be selectively inserted into the snap-fit ​​groove (130).

4. The aerosol generating apparatus according to claim 3, characterized in that, The bottom of the heating body (100) is provided with a receiving groove (140). When the second extension (212) is inserted into the snap-fit ​​groove (130), the bottom cover (200) is placed in the receiving groove (140). The bottom wall (142) of the receiving groove (140) is provided with a groove (1421). The snap-fit ​​groove (130) is defined by the groove (1421) and the side wall (141) of the receiving groove (140).

5. The aerosol generating apparatus according to claim 4, characterized in that, A pry-out gap (143) is left between the bottom cover (200) and the side wall (141) of the receiving groove (140).

6. The aerosol generating apparatus according to claim 1, characterized in that, The bottom cover (200) includes a structural layer (220), an outer decorative layer (230), and an adhesive backing layer (240) located between the structural layer (220) and the outer decorative layer (230), the adhesive backing layer (240) bonding the structural layer (220) and the outer decorative layer (230).

7. The aerosol generating apparatus according to claim 6, characterized in that, The bottom of the heating body (100) is provided with a magnetic part, and the material of the structural layer (220) is a magnetic material that can be magnetized by the magnetic part.

8. The aerosol generating apparatus according to claim 1, characterized in that, The air intake channel further includes a second section (R12) and a third section (R13), the second section (R12) being perpendicularly connected to the first section (R11), and the third section (R13) being connected to the second section (R12) and the air intake (121).

9. The aerosol generating apparatus according to claim 8, characterized in that, The second section (R12) or the third section (R13) is provided with a temperature sensing element (270).

10. The aerosol generating apparatus according to any one of claims 1-9, characterized in that, The aerosol generating device also includes a top cover (300) that is slidably disposed on top of the heating body (100) to selectively cover the insertion port (111).

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