Aerosol-generating device

Abstract

The utility model relates to an aerosol generating device, which comprises a heating tube, a heating tube, a heating element and an aerosol generating element, wherein a heating cavity is formed in the heating tube in a penetrating manner; and the base is matched at one end of the heating tube, and an accommodating cavity and an air inlet channel communicated with the accommodating cavity are formed in the base. The heating cavity and the containing cavity are communicated to form a containing channel used for containing at least part of the aerosol generating product, and at least one boss is formed at the end, close to the air inlet channel, of the containing cavity and used for supporting the aerosol generating product. The aerosol generating product is supported by the boss, and the contact area between the base and the bottom of the aerosol generating product can be reduced, so that the air inlet area is increased, the suction resistance is reduced, and the smoke outlet effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol generation device. Background Technology

[0002] For aerosol forming devices that use circumferential heating, a base is typically provided at the bottom of the heating element. This base supports the aerosol-generating product and facilitates air intake. After the aerosol-generating product is inserted into the aerosol forming device, its bottom rests on the support surface of the base. The area of ​​the support surface affects the air intake area, which in turn affects the suction resistance and smoke extraction efficiency of the aerosol forming device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an improved aerosol generating device in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: An aerosol generating device is provided, comprising: a heating tube with a heating chamber formed therethrough; and a base fitted to one end of the heating tube, having a receiving cavity and an air inlet channel communicating with the receiving cavity.

[0005] The heating chamber and the receiving chamber are connected to form a receiving channel for accommodating at least a portion of the aerosol-generated article. At least one boss is formed at one end of the receiving chamber near the air inlet channel for supporting the aerosol-generated article.

[0006] In some embodiments, a support surface is formed at one end of the receiving cavity near the air intake channel, and at least one boss protrudes from the support surface.

[0007] In some embodiments, the support surface is conical, and the cross-sectional area of ​​the support surface gradually increases from the end closer to the air intake channel to the end farther away from the air intake channel.

[0008] In some embodiments, the support surface is a plane, and the plane is perpendicular to the axial direction of the receiving cavity.

[0009] In some embodiments, the receiving cavity is smoothly connected to the air intake channel, and the at least one boss is formed by protruding from the inner wall surface of one end of the receiving cavity near the air intake channel.

[0010] In some embodiments, there are multiple bosses, and the multiple bosses are evenly spaced apart in the circumferential direction of the receiving cavity.

[0011] In some embodiments, the air intake channel includes a first channel and a second channel arranged sequentially from upstream to downstream of the airflow, wherein the cross-sectional area of ​​the first channel is larger than the cross-sectional area of ​​the second channel.

[0012] In some embodiments, the aerosol generating device further includes a sealing member at least partially disposed in the first channel, the sealing member having at least one air inlet hole connecting the first channel to the outside.

[0013] In some embodiments, the receiving cavity includes a conical cavity communicating with the heating cavity, the cross-sectional area of ​​which gradually decreases from one end near the heating cavity to the end away from the heating cavity.

[0014] In some embodiments, the air intake channel includes a second channel adjacent to the receiving cavity, wherein the cross-sectional area of ​​the conical cavity near the heating cavity is larger than the cross-sectional area of ​​the second channel.

[0015] In some embodiments, the receiving cavity includes a cylindrical cavity communicating with the air inlet channel, wherein the difference between the inner diameter of the cylindrical cavity and the outer diameter of the aerosol-generating article is between -0.15 mm and +0.15 mm.

[0016] Implementing this utility model has at least the following beneficial effects: by supporting the aerosol generating product with the boss, the contact area between the base and the bottom of the aerosol generating product can be reduced, thereby increasing the air intake area, reducing suction resistance, and improving the smoke output effect. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0018] Figure 1 This diagram shows a longitudinal cross-sectional view of the aerosol generation system in some embodiments of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the longitudinal cross-sectional structure of the aerosol generation device;

[0020] Figure 3 yes Figure 2 A schematic diagram of the longitudinal cross-sectional structure of the central base;

[0021] Figure 4 yes Figure 3 Top view of the base shown;

[0022] Figure 5 This is a longitudinal cross-sectional structural diagram of the base in some other embodiments of this utility model;

[0023] Figure 6This is a longitudinal cross-sectional structural diagram of the base in some embodiments of this utility model. Detailed Implementation

[0024] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] The terms "longitudinal", "lateral", "up", "down", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, four, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] Figures 1 to 2An aerosol generation system 1 according to some embodiments of the present invention is shown. The aerosol generation system 1 may include an aerosol generation device 100 and an aerosol generation article 200. The aerosol generation article 200 is movably inserted into the aerosol generation device 100, facilitating removal and replacement with a new aerosol generation article 200 after heating is complete. The aerosol generation device 100 can heat the aerosol generation article 200 inserted therein after being powered on, to release the aerosol extract in the aerosol generation article 200 in a non-combustible state.

[0030] In some embodiments, the aerosol generating article 200 may be cylindrical. Of course, in other embodiments, the aerosol generating article 200 may also be elliptical, polygonal, or other cylindrical shapes. The aerosol generating article 200 includes an outer layer 210 and an aerosol generating medium 220 disposed within the outer layer 210. The aerosol generating medium 220 may include solid materials in the form of strips, flakes, or granules made from the leaves and / or stems of plants (e.g., tobacco or tea leaves), and aroma components may be further added to the solid material.

[0031] In some embodiments, the aerosol generating article 200 further includes a plug 230 disposed within the outer casing 210. The end of the aerosol generating article 200 inserted into the aerosol generating device 100 is sealed by the plug 230, thus preventing residue from the aerosol generating medium 220 from falling and contaminating the aerosol generating device 100. Of course, in other embodiments, the aerosol generating article 200 may not include the plug 230.

[0032] The plug 230 can be made of a porous material, allowing outside air to flow into the aerosol generating medium 220 through the plug 230, and carrying away the aerosol generated after the aerosol generating medium 220 is heated. Of course, in other embodiments, the plug 230 can also be made of a non-porous material, and air passages for air circulation can be formed on the non-porous material through micromachining or other methods.

[0033] The aerosol generating apparatus 100 may include a heating element 120 and a base 130 disposed at one end of the heating element 120. A heating chamber 123 is formed within the heating element 120, and a receiving cavity 132 is formed within the base 130. The heating chamber 123 and the receiving cavity 132 are connected to form a receiving channel 150 for receiving at least a portion of the aerosol generating article 200. Specifically, the aerosol generating medium 220 of the aerosol generating article 200 is received in the heating chamber 123, and the plug 230 is received in the receiving cavity 132.

[0034] The heating element 120 is used to heat the aerosol generating product 200 contained therein after being energized. The heating method used by the heating element 120 is not limited, for example, it can be one or more of resistance heating, electromagnetic heating, infrared heating, laser heating, microwave heating, etc.

[0035] Combination Figures 1 to 4 As shown, the heating tube 120 can be in the shape of a circular tube, and the heating cavity 123 extends through the heating tube 120 along the axial direction. Of course, in other embodiments, the heating tube 120 can also be in other shapes such as an elliptical tube, a racetrack-shaped tube, or a polygonal tube.

[0036] The heating element 120 has a first end 120a and a second end 120b that are axially opposed. The base 130 is fitted onto the second end 120b of the heating element 120. The aerosol generating article 200 can be inserted into the heating element 120 via the first end 120a.

[0037] The first end 120a of the heating element 120 may have a flared portion 121, the cross-sectional area of ​​which gradually decreases from the first end 120a to the second end 120b, allowing the aerosol generating article 200 to be smoothly inserted into the heating element 120 through the flared portion 121. Of course, in other embodiments, the first end 120a of the heating element 120 may not have a flared portion 121.

[0038] Specifically, the heating element 120 may include a main body 122 and a flared portion 121 disposed at one end of the main body 122. The flared portion 121 and the main body 122 are coaxially arranged from the first end 120a to the second end 120b.

[0039] In some embodiments, the flared portion 121 may be trumpet-shaped, but is not limited to being trumpet-shaped. The inner diameter of the flared portion 121 gradually decreases in the direction from the first end 120a to the second end 120b, and the outer diameter of the flared portion 121 also gradually decreases in the direction from the first end 120a to the second end 120b.

[0040] The flared part 121 is smoothly connected to the main body 122. That is, no step surface is formed at the connection between the flared part 121 and the main body 122. The aerosol generating product 200 can smoothly enter the main body 122 through the flared part 121 without any jamming problem.

[0041] The inner diameter of the main body 122 is approximately equal to the outer diameter of the aerosol generating article 200. Specifically, the inner diameter of the main body 122 may be equal to, slightly greater than, or slightly smaller than the outer diameter of the aerosol generating article 200.

[0042] The second end 120b of the heating element 120 can be inserted into the base 130. Specifically, one end of the base 130 has a mounting hole 131, and the second end 120b of the heating element 120 is disposed in the mounting hole 131.

[0043] A sealing element 140 may be provided between the outer wall surface of the heating element 120 and the inner wall surface of the mounting hole 131. Of course, in other embodiments, the outer wall surface of the heating element 120 and the inner wall surface of the mounting hole 131 may also be in direct contact.

[0044] In other embodiments, the base 130 may not have mounting holes 131, and the base 130 and the heating element 120 may only abut against each other at their end faces.

[0045] The base 130 has a receiving cavity 132 and an air inlet channel 133 connected to the receiving cavity 132. During the suction process, outside air can enter through the air inlet channel 133 and enter the aerosol generating medium 220 through the plug 230.

[0046] At least one boss 1325 is formed at one end of the receiving cavity 132 near the air intake channel 133 (shown as the lower end in the figure). The boss 1325 is used to support the aerosol generating article 200, and when the aerosol generating article 200 is inserted into the base 130, the bottom of the aerosol generating article 200 can abut against the boss 1325.

[0047] Preferably, there are multiple bosses 1325, which are spaced apart circumferentially in the receiving cavity 132. The gaps between two adjacent bosses 1325 can also be used to allow airflow, increasing the air intake area at the bottom of the aerosol generating article 200. Preferably, the multiple bosses 1325 can be evenly spaced apart circumferentially in the receiving cavity 132, or in other words, the multiple bosses 1325 are evenly spaced apart around the central axis of the aerosol generating article 200, which is beneficial for uniform air intake.

[0048] By supporting the aerosol generating product 200 with the boss 1325, the contact area between the base 130 and the aerosol generating product 200 can be reduced, the air intake area can be increased, the suction resistance can be reduced, and the smoke output effect can be improved.

[0049] like Figure 1 As shown, when the aerosol generating product 200 is being drawn in, the air entering through the air inlet channel 133 flows through the bottom of the aerosol generating product 200. Part of the air flows directly into the central area of ​​the bottom of the aerosol generating product 200, while the other part flows in through the gap between the bosses 1325 from the side area of ​​the bottom of the aerosol generating product 200.

[0050] For example Figure 3As shown, a support surface 1323 is formed at the lower end of the receiving cavity 132, and a boss 1325 protrudes from the support surface 1323. The boss 1325 can be disposed at any position on the support surface 1323. For example, it can be disposed at the junction of the support surface 1323 and the inner wall surface of the receiving cavity 132, or it can be disposed at a certain distance from the inner wall surface of the receiving cavity 132.

[0051] In this embodiment, the support surface 1323 is conical (e.g., conical or quasi-conical), and the cross-sectional area (or inner diameter) of the support surface 1323 gradually increases from the end closer to the air intake channel 133 to the end farther away from the air intake channel 133. The conical support surface 1323 enables a smoother airflow channel and a more uniform airflow distribution.

[0052] Of course, in other embodiments, such as Figure 5 As shown, the support surface 1323 can also be a plane, which is perpendicular to the axial direction of the receiving cavity 132 and parallel to the bottom surface of the aerosol generating article 200. The condensate at the bottom of the aerosol generating article 200 is less likely to flow down the support surface 1323, making it easier to clean. However, during suction, the path of the airflow from the gap between the bosses 1325 into the side region of the aerosol generating article 200 is at a right angle, resulting in less uniform airflow compared to the conical support surface 1323.

[0053] For example Figure 2 , Figure 3 As shown, in some embodiments, the receiving cavity 132 may include a conical cavity 1321, the inner diameter (or cross-sectional area) of which gradually decreases from the end near the heating cavity 123 to the end away from the heating cavity 123, serving as a guide when the aerosol generating article 200 is inserted.

[0054] The conical cavity 1321 is connected to the second end 120b of the heating cavity 123. The inner diameter d1 of the end of the conical cavity 1321 near the heating cavity 123 is greater than or equal to the inner diameter of the second end 120b of the heating tube 120. That is, the inner diameter d1 of the end of the conical cavity 1321 near the heating cavity 123 is greater than or equal to the inner diameter of the main body 122, so that the aerosol generating product 200 will not get stuck when it enters the base 130 from the heating tube 120.

[0055] In addition, the inner diameter d1 of the conical cavity 1321 near the heating cavity 123 is greater than or equal to the outer diameter of the aerosol generating article 200, ensuring that the aerosol generating article 200 can be smoothly inserted.

[0056] The outer diameter of the second end 120b of the heating tube 120 (that is, the outer diameter of the main body 122) is greater than the inner diameter d1 of the end of the conical cavity 1321 near the heating cavity 123, so that a support surface 1324 is formed at the top of the conical cavity 1321 to support the heating tube 120.

[0057] In some embodiments, the receiving cavity 132 may further include a cylindrical cavity 1322, which is connected to the end of the conical cavity 1321 away from the heating cavity 123. The cylindrical cavity 1322 can be cylindrical with a constant inner diameter. The inner diameter of the cylindrical cavity 1322 is equal to the inner diameter of the end of the conical cavity 1321 away from the heating cavity 123. No step is formed at the connection between the cylindrical cavity 1322 and the heating cavity 123, thereby ensuring that the aerosol generating article 200 will not jam during insertion.

[0058] The cylindrical cavity 1322 is connected to the air inlet channel 133. The inner diameter d2 of the cylindrical cavity 1322 is approximately equal to the outer diameter of the aerosol generating product 200. Specifically, assuming the outer diameter of the aerosol generating product 200 is G, the value of the inner diameter d2 is within the range of G ± 0.15 mm. Thus, when the aerosol generating product 200 is inserted into the base 130, the interference fit or gap between the plug 230 and the base 130 can be maintained at a reasonable value. This ensures that the force on the aerosol generating product 200 when inserted into the base 130 is not excessive, and also minimizes the inflow of air from the side of the aerosol generating product 200, maintaining consistent suction resistance.

[0059] Understandably, in other embodiments, the receiving cavity 132 may have only a conical cavity 1321 without a cylindrical cavity 1322, or it may have only a cylindrical cavity 1322 without a conical cavity 1321.

[0060] The air intake channel 133 has an air inlet 133a and an air outlet 133b at its two ends, respectively, and the air outlet 133b is connected to the receiving cavity 132. The inner diameter of the air outlet 133b is smaller than the inner diameter of the lower end of the receiving cavity 132. In this embodiment, it can also be said that the inner diameter of the air outlet 133b is smaller than the inner diameter of the cylindrical cavity 1322, so that a support surface 1323 is formed at the lower end of the receiving cavity 132.

[0061] In some embodiments, the aerosol generating apparatus 100 may further include a sealing element 110 that seals the air inlet 133a. The sealing element 110 can reduce leakage of condensate from the air inlet 133a. Of course, in other embodiments, the sealing element 110 may be omitted.

[0062] The sealing component 110 is provided with at least one air inlet 111 for allowing outside air to enter the air intake passage 133. The cross-sectional area of ​​the air inlet 111 is smaller than the cross-sectional area of ​​the air inlet 133a.

[0063] The shape of the air intake 111 is not limited. The cross-sectional area and number of the air intake 111 can be designed according to actual needs. Preferably, there are multiple air intakes 111, which can be evenly spaced around the air intake 133a.

[0064] In some embodiments, the air intake passage 133 may include a first passage 1331 and a second passage 1332 arranged sequentially from upstream to downstream of the airflow. The end of the first passage 1331 away from the second passage 1332 defines an air intake 133a.

[0065] The second channel 1332 is adjacent to the receiving cavity 132. The cross-sectional area / inner diameter of the end of the conical cavity 1321 near the heating cavity 123 is greater than the cross-sectional area / inner diameter of the second channel 1332. The cross-sectional area / inner diameter of the end of the conical cavity 1321 away from the heating cavity 123 may be greater than or equal to the cross-sectional area / inner diameter of the second channel 1332.

[0066] The sealing element 110 is at least partially disposed in the first channel 1331. The sealing element 110 may be made of sealing materials such as soft rubber, which is beneficial to improving the sealing performance between the outer wall surface of the sealing element 110 and the inner wall surface of the first channel 1331.

[0067] The cross-sectional area (or inner diameter) of the first channel 1331 is larger than that of the second channel 1332. The larger cross-sectional area of ​​the first channel 1331 facilitates the installation of the sealing element 110. When it is necessary to clean the airway, the sealing element 110 can be removed, and the first channel 1331 with its larger cross-sectional area makes it easier to remove internal dirt.

[0068] Of course, in other embodiments, the cross-sectional areas of the first channel 1331 and the second channel 1332 may also be the same.

[0069] In some embodiments, the air intake channel 133 may extend in a straight line, and the air intake channel 133, the receiving cavity 132, and the heating cavity 123 may be coaxially arranged and connected in sequence. Of course, in other embodiments, the air intake channel 133 may also extend in a non-linear shape, for example, the first channel 1331 and the second channel 1332 may be arranged at an angle (e.g., a 90-degree angle).

[0070] like Figure 6 As shown, in this embodiment, the receiving cavity 132 and the air intake channel 133 are smoothly connected. No supporting surface 1323 is formed at the junction of the receiving cavity 132 and the air intake channel 133. That is, the inner diameter of the bottom of the receiving cavity 132 is equal to the inner diameter of the air outlet 133b at the top of the air intake channel 133. The boss 1325 protrudes from the lower inner wall surface of the receiving cavity 132.

[0071] In this embodiment, there are no other structures blocking the entire receiving cavity 132 and air intake channel 133 except for the boss 1325. The airflow will be more uniform during the suction process. However, condensate and other debris will slide down or fall to the bottom of the air intake channel 133 along the inner wall of the receiving cavity 132 and air intake channel 133, which is not easy to clean.

[0072] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. An aerosol-generating device, characterized by, include: A heating tube (120) has a heating cavity (123) formed inside it; The base (130) is fitted to one end of the heating tube (120), and has a receiving cavity (132) and an air intake channel (133) communicating with the receiving cavity (132). The heating chamber (123) and the receiving chamber (132) communicate to form a receiving channel (150) for receiving at least a portion of the aerosol-generating article (200). The receiving cavity (132) has at least one boss (1325) formed at one end near the air inlet channel (133) for supporting the aerosol generating article (200).

2. The aerosol-generating device of claim 1, wherein, The receiving cavity (132) has a support surface (1323) formed at one end near the air intake channel (133), and at least one boss (1325) protrudes from the support surface (1323).

3. The aerosol-generating device of claim 2, wherein, The support surface (1323) is conical, and the cross-sectional area of ​​the support surface (1323) gradually increases from the end near the air intake channel (133) to the end away from the air intake channel (133).

4. The aerosol-generating device of claim 2, wherein, The support surface (1323) is a plane, and the plane is perpendicular to the axial direction of the receiving cavity (132).

5. The aerosol-generating device of claim 1, wherein, The receiving cavity (132) is smoothly connected to the air intake channel (133), and the at least one boss (1325) is formed by protruding from the inner wall surface of the receiving cavity (132) near the air intake channel (133).

6. The aerosol-generating device of claim 1, wherein, There are multiple bosses (1325), and the multiple bosses (1325) are distributed at intervals in the circumferential direction of the receiving cavity (132).

7. The aerosol-generating device of claim 1, wherein, The air intake channel (133) includes a first channel (1331) and a second channel (1332) arranged sequentially from upstream to downstream of the air flow, wherein the cross-sectional area of ​​the first channel (1331) is larger than the cross-sectional area of ​​the second channel (1332).

8. The aerosol-generating device of claim 7, wherein, The aerosol generating device further includes a sealing member (110) at least partially disposed in the first channel (1331), and the sealing member (110) is provided with at least one air inlet (111) that connects the first channel (1331) to the outside.

9. The aerosol-generating device of any of claims 1-8, wherein, The receiving cavity (132) includes a conical cavity (1321) communicating with the heating cavity (123), the cross-sectional area of ​​which gradually decreases from one end near the heating cavity (123) to the other end away from the heating cavity (123).

10. The aerosol-generating device of claim 9, wherein, The air intake channel (133) includes a second channel (1332) adjacent to the receiving cavity (132), and the cross-sectional area of ​​the conical cavity (1321) near the heating cavity (123) is larger than the cross-sectional area of ​​the second channel (1332).

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