Aerosol-generating device and aerosol-generating system

Abstract

The application discloses an aerosol generating device and an aerosol generating system. The aerosol generating device comprises: a heating element; a first tubular body defining a first chamber; a second tubular body arranged in the first chamber and defining a second chamber for accommodating at least a portion of an aerosol generating article, the first chamber having a first open end for the aerosol generating article to enter the second chamber and a second open end for providing an entrance of the second tubular body into the first chamber; a first sealing member for cooperating with the aerosol generating article to seal the first open end; and a second sealing member for sealing the second open end. The tube wall of the second tubular body is provided with at least one first notch, and a first gap is maintained between the outer wall of the second tubular body and the inner wall of the first tubular body, which is in communication with the second chamber. In this way, the concentration of the aerosol generated by heating the aerosol generating article in a low-oxygen environment can be improved.

Description

[Technical Field]

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

[0002] Traditional cigarettes release nicotine and flavor components from tobacco through combustion to satisfy consumer demand. However, tobacco combustion also releases some harmful chemicals. To reduce the release of these chemicals, heated tobacco aerosol generators have been developed. These devices contain heating elements. When in use, the consumer inserts the accompanying heated tobacco product into the device, and the heating element heats the product. By controlling the power of the heating element, the heat released prevents the tobacco in the product from burning; instead, the tobacco evaporates due to heat, producing smoke for the user to inhale—that is, an aerosol.

[0003] To improve the smoking experience and make the aerosol generated by the aforementioned aerosol generating device more similar to the taste of traditional cigarettes, existing technologies use aerosol generating devices to heat the aerosol-generating product in a low-oxygen environment. However, existing methods for heating aerosol-generating products in a low-oxygen environment suffer from the problem of low aerosol concentration. [Utility Model Content]

[0004] This application provides an aerosol generating device and an aerosol generating system to solve the technical problem of low aerosol concentration caused by insufficient air content inside the aerosol generating device in a low-oxygen environment.

[0005] At least one embodiment of this application provides an aerosol generating apparatus, comprising:

[0006] Heating element, used to heat aerosol-generating products to produce aerosols;

[0007] The first tubular body defines a first chamber;

[0008] A second tubular body is disposed in the first chamber. The second tubular body defines a second chamber for receiving at least a portion of the aerosol-generating article. The first chamber has a first opening end and a second opening end disposed opposite to each other along the receiving direction. The first opening end is used for the aerosol-generating article to enter the second chamber, and the second opening end is used to provide an entrance for the second tubular body to enter the first chamber.

[0009] A first sealing element is disposed at the first opening end. The first sealing element is used to cooperate with the aerosol generating article to seal the first opening end when the aerosol generating article is contained in the second chamber.

[0010] A second sealing element is disposed at the second opening end and seals the second opening end;

[0011] The second tubular body has at least one first notch in its wall to expose a portion of the outer surface of the aerosol-generated product, and the outer wall of the second tubular body and the inner wall of the first tubular body maintain a first gap that communicates with the second chamber.

[0012] In one embodiment, the second tubular body includes a first section and a second section connected sequentially along a receiving direction. The first section is used to receive at least a portion of the aerosol generating article, and a heating element is disposed in the second section. The heating element is arranged adjacent to the first section to heat the aerosol generating article to generate aerosol.

[0013] In one embodiment, the heating element includes an air heating element or a light heating element.

[0014] In one embodiment, the first notch is disposed in the first section, the first section having a first end and a second end disposed opposite to each other along the receiving direction, the first notch extending from the first end to the second end.

[0015] In one embodiment, the second section is further provided with a holding element having a holding chamber, in which the heating element is held.

[0016] In one embodiment, a third chamber is provided between the inner wall of the first tubular body and the outer wall of the second tubular body, and at least one second notch is provided on the side wall of the retaining element, thereby defining a second gap between the heating element and the inner wall of the second section. The second gap is used to guide air in the third chamber into the first section.

[0017] In one embodiment, the second tubular body includes a connecting portion connecting the first segment and the second segment, the connecting portion including a first supporting surface for abutting the aerosol generating article, and a second supporting surface adjacent to the first supporting surface for abutting the heating element.

[0018] In one embodiment, the second tubular body has a third opening for the heating element to enter the second chamber, the third opening communicating with the first gap.

[0019] At least one embodiment of this application also provides an aerosol generation system, comprising:

[0020] The aerosol generating apparatus described in the above embodiments;

[0021] An aerosol generating article is removably housed in the second chamber, and the aerosol generating apparatus is used to heat the aerosol generating article to generate an aerosol.

[0022] When the aerosol-generating article is housed in the second chamber, the inner wall of the first tubular body, the outer wall of the second tubular body, and the aerosol-generating article exposed through the first notch together define a third chamber.

[0023] In one embodiment, the third chamber has a diameter of 200 mm. 3 ~800mm 3 The volume.

[0024] The aerosol generating device provided in the above embodiments seals the first and second opening ends of the first chamber respectively with a first sealing member and a second sealing member, thereby enabling the aerosol generating device to heat the aerosol generating product in a low-oxygen environment, thus providing the inhalation experience of the aerosol. Simultaneously, by creating at least one first notch on the outer wall of the first tubular body, when the aerosol generating product is housed in the second chamber, the outer wall of the first tubular body, the inner wall of the second tubular body, and the aerosol generating product exposed through the first notch together define a larger third chamber. When the user inhales, air from the third chamber can enter the aerosol generating product, thereby increasing the concentration of aerosol generated by heating the aerosol generating product in a low-oxygen environment and preventing low aerosol concentration due to insufficient air content inside the aerosol generating device. [Attached Image Description]

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0026] Figure 1 A cross-sectional schematic diagram of an aerosol generation system provided in an embodiment of this application;

[0027] Figure 2 for Figure 1 A cross-sectional schematic diagram of the aerosol generation device;

[0028] Figure 3 for Figure 2 A three-dimensional schematic diagram of the second tubular body of the aerosol generating device in one direction;

[0029] Figure 4 for Figure 3 A cross-sectional view of the second tubular body in one direction;

[0030] Figure 5for Figure 1 A cross-sectional schematic diagram of the aerosol generation system from another direction;

[0031] Figure 6 for Figure 2 A cross-sectional view of the aerosol generator with the heating element concealed.

[0032] Figure 7 for Figure 6 A three-dimensional schematic diagram of the holding element of the aerosol generating device in one direction;

[0033] Figure 8 for Figure 2 A partially enlarged schematic diagram of the aerosol generation device.

Detailed Implementation Methods

[0034] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" or "attached to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0036] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] In this embodiment of the utility model, "installation" includes fixing or restricting a component or device to a specific position or place by means of welding, screwing, snapping, bonding, etc. The component or device may remain stationary in the specific position or place or may move within a limited range. After the component or device is fixed or restricted to the specific position or place, it may or may not be disassembled. This embodiment of the utility model does not impose any restrictions.

[0038] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] One embodiment of this application provides an aerosol generating device 100, such as... Figure 1 and Figure 2 As shown, the aerosol generating device 100 includes a housing 10 and a first tubular body 20 disposed within the housing 10. The first tubular body 20 is hollow, thereby defining a first chamber 21. The aerosol generating device 100 also includes a second tubular body 30 disposed within the first chamber 21. The second tubular body 30 is hollow, thereby defining a second chamber 31. The housing 10 is provided with an opening 11 through which an aerosol generating article 200 passes. The second chamber 31 communicates with the opening 11, so that the aerosol generating article 200 can pass through the opening 11 and be at least partially contained in the second chamber 31.

[0040] The aerosol generating device 100 also includes a heating element 40, a battery cell 90, and a main board (not shown). The main board is equipped with a controller for the aerosol generating device. The heating element 40 and the battery cell 90 are both electrically connected to the main board. The controller on the main board can then control the battery cell 90 to provide electrical energy to the heating element 40, so that the heating element 40 heats the aerosol generating product 200. This causes at least some of the active substances in the aerosol generating product 200 to volatilize and generate aerosols that can be inhaled by the user. The user can inhale the aerosol by inhaling it from the aerosol generating product 200.

[0041] like Figure 2 As shown, the first chamber 21 has a first opening end 211 and a second opening end 212 disposed opposite to each other along the receiving direction. The first opening end 211 and the opening 11 are connected. Since the second tubular body 30 is disposed in the first chamber 21, the aerosol generating article 200 can pass through the first opening end 211 and be received in the second chamber 31 of the second tubular body 30. At the same time, during assembly, the second tubular body 30 can be assembled in the first chamber 21 through the second opening end 212.

[0042] Please continue reading. Figure 1 The aerosol generating apparatus 100 also includes a first sealing member 50 disposed at the first opening end 211 and a second sealing member 60 disposed at the second opening end 212. The first sealing member 50 is used to cooperate with the aerosol generating article 200 to seal the first opening end 211 when the aerosol generating article 200 is contained in the second chamber 31.

[0043] In some embodiments, please continue reading Figure 1 In conjunction with reference Figure 2 The first sealing element 50 has a through hole 51 through which the aerosol generating product 200 passes. The first sealing element 50 can be made of flexible materials such as silicone, rubber or latex. When the aerosol generating product 200 passes through the through hole 51, the outer surface of the aerosol generating product 200 can elastically abut against the hole wall of the through hole 51, thereby sealing the first opening end 211. The second sealing element 60 is used to seal the second opening end 212.

[0044] In some embodiments, the second seal 60 may also be made of a flexible material such as silicone, rubber or latex, so that the second seal 60 can elastically abut against the inner wall of the first chamber 21 to seal the second opening end 212.

[0045] Alternatively, in some embodiments, the second seal 60 may also be a sealant, thereby sealing the second opening end 212 by means of the sealant.

[0046] like Figure 1 As shown, the aerosol generating article 200 has a filter section 210 and a matrix section 220 arranged opposite each other along its length, and a cooling section 230 disposed between the filter section 210 and the matrix section 220. The filter section 210 is filled with a filter material (not shown), and the user can inhale from the filter end 210. The matrix section 220 is filled with active volatile substances such as tobacco or non-tobacco, which then volatilize and generate aerosols when heated.

[0047] The cooling section 230 is provided with an air inlet 2310 for external air to enter the aerosol generating product 200. When the user is inhaling in the filtration section 210, external air can enter the aerosol generating product 200 through the air inlet 2310 and carry the aerosol generated in the matrix section 220 to the filtration section 210 for the user to inhale. Because external air enters the cooling section 230, the external air mixes with the high temperature aerosol, thereby effectively reducing the temperature of the high temperature aerosol.

[0048] Since the first opening end 211 and the second opening end 212 of the first tubular body 20 are sealed when the aerosol generating article 200 is housed in the second chamber 31, external air cannot enter the aerosol generating article 200 from the side and bottom. The air entering the aerosol generating article 200 from the air inlet 2310 will not flow through the matrix section 220, so the tobacco or non-tobacco matrix in the matrix section 220 is heated under low oxygen conditions.

[0049] like Figure 2 and Figure 3As shown, the first tubular body 20 has at least one first notch 321 in its wall. When the aerosol-generating article 200 is housed in the second chamber 31, a portion of the outer surface of the aerosol-generating article 200 is exposed in the first chamber 21. Simultaneously, a first gap 213 maintains communication between the inner wall of the first tubular body 20 and the outer wall of the second tubular body 30 and the second chamber 31. Therefore, when the aerosol-generating article 200 is housed in the second chamber 31, the inner wall of the first tubular body 20, the outer wall of the second tubular body 30, and the outer surface of the aerosol-generating article 200 exposed through the first notch 321 collectively define and form a third chamber 70. Figure 5 As shown. Since both the first opening end 211 and the second opening end 212 of the first chamber 21 are sealed, the third chamber 70 is a sealed chamber, and external air cannot enter the third chamber 70. Therefore, through the above method, the third chamber 70 can have a large volume, thereby having a high air content in the third chamber 70. When the user draws air, the air in the third chamber 70 can flow into the second chamber 31 through the first gap 213, and then further enter the matrix section 220 from the bottom of the aerosol generating product 200. This avoids the low concentration of aerosol caused by the low air content inside the aerosol generating device 100 when heating the aerosol generating product 200 in a low-oxygen environment.

[0050] In some embodiments, such as Figure 3 and Figure 4 As shown, the second tubular body 30 includes a first section 32 and a second section 33 connected sequentially along the receiving direction. When the aerosol generating article 200 is received in the second chamber 31 of the second tubular body 30, the aerosol generating article 200 will be received in the first section 32. It is easy to understand that the first notch 321 is provided on the first section 32. At the same time, the heating element 40 is provided in the second section 33, and the heating element 40 is provided adjacent to the first section 32 so that the heating element 40 and the bottom of the aerosol generating article 200 are in contact or close, so that the heating element 40 can heat the aerosol generating article 200 from the bottom.

[0051] Because the heating element 40 is in contact with or close to the bottom of the aerosol generating article 200, the bottom of the aerosol generating article 200 cannot reserve enough space to provide air, which can easily lead to a low aerosol concentration. However, since the third chamber 70 and the second chamber 31 are connected, during suction, the air in the third chamber 70 will enter the second chamber 31 and then further enter the aerosol generating article 200, thus avoiding the problem of low aerosol concentration caused by bottom heating in a low-oxygen environment.

[0052] In some embodiments, such as Figure 4As shown, the first section 32 has a first end 322 and a second end 323 disposed opposite to each other along the receiving direction. To further increase the volume of the third chamber 70, a first notch 321 extends from the first end 322 to the second end 323.

[0053] In some embodiments, the heating element 40 includes an air heating element, which includes a substrate (not shown) and a heating element (not shown) disposed in the substrate. The substrate is made of a highly thermally conductive material, such as graphite, so that the heat generated by the heating element is transferred to the substrate. The substrate has multiple airflow channels (not shown) for air to flow through the third chamber 70. The airflow channels extend longitudinally through the substrate and communicate with the second chamber 31. When the air in the third chamber 70 flows through these airflow channels, it is heated by the substrate. The heated air then flows further into the second chamber 31 and into the matrix section 220 at the bottom of the aerosol generating article 200. The tobacco or non-tobacco aerosol generating matrix filled in the matrix section 220 can then volatilize to generate aerosols. When the user inhales, external air enters the aerosol generating article 200 through the air inlet 2310 and carries the generated aerosols into the filter section 210 for the user to inhale.

[0054] In some embodiments, the heating element 40 includes a light heating element, which includes a light source, such as a tungsten filament lamp, a halogen lamp, or a xenon lamp, and then heats the aerosol-generated article 200 by the thermal radiation generated by the light source.

[0055] It should be noted that both the air heating element and the light heating element need to be close to or in contact with the bottom of the aerosol generating product 200 to improve heating efficiency.

[0056] In some embodiments, the heating element 40 can also heat the aerosol generating product 200 by infrared heating. Specifically, an infrared electrothermal coating can be coated on the outer wall of the first tubular body 20. When the infrared electrothermal coating is energized, it heats up and generates infrared rays. The infrared rays radiate to the second chamber 31 and are absorbed by the aerosol generating product 200, thereby generating heat in the aerosol generating product 200.

[0057] In some embodiments, such as Figure 4As shown, the second tubular body 30 further includes a connecting portion 34 for connecting the first section 32 and the second section 33. The connecting portion 34 includes a first abutting surface 341, which abuts against the aerosol generating article 200 to provide support for it. The connecting portion 34 also includes a second abutting surface 342 adjacent to the first abutting surface 341, which abuts against the heating element 40 to position the heating element 40 so that its installation position is close to the first section 32. Therefore, when the aerosol generating article 200 is housed in the first section 32, the heating element 40 can approach or contact the bottom of the aerosol generating article 200.

[0058] In some embodiments, such as Figure 6 and Figure 7 As shown, a retaining element 80 is also provided in the second section 33, which defines a retaining chamber 81 in which the heating element 40 is installed and retained. The retaining element 80 can be made of a high-strength material, such as carbon steel or stainless steel, so that the heating element 40 can be retained in the retaining chamber 81 by a tight fit.

[0059] In some embodiments, such as Figure 7 As shown, the retaining element 80 also includes a fastening part 82 that is radially bent from the outer wall. Correspondingly, a matching slot can be provided in the second section 33, so that the retaining element 80 can be assembled in the second section 33 by the snap-fit ​​connection between the fastening part 82 and the slot.

[0060] In some embodiments, such as Figure 7 As shown, the sidewall of the retaining element 80 is provided with at least one second notch 83, thereby defining a second gap 811 between the heating element 40 and the inner wall of the second section 33. The second gap 811 is used to guide air in the third chamber 70 into the first section 32 so as to enter the aerosol generating article 200.

[0061] Specifically, such as Figure 1 As shown, the second section 33 has a third opening end 331 away from the first section 32. The heating element 40 can be installed in the second section 33 through the third opening end 331. An airflow chamber 61 is maintained between the second seal 60 and the third opening end 331, through which airflow passes. The airflow chamber 61 connects the first gap 231 and the second gap 811. Air in the third chamber 70 can flow into the airflow chamber 61 through the first gap 213, then into the second gap 811 through the third opening end 331, and finally enter the first section 32 along the second gap 811. Figure 8As shown in the airflow path R, air in the third chamber 70 can be introduced from the bottom of the aerosol generating article 200 into the aerosol generating article 200 in this way, which is beneficial to increasing the concentration of aerosol.

[0062] One embodiment of this application also provides an aerosol generation system, such as... Figure 1 As shown, the aerosol generation system includes the aerosol generation device 100 described in the above embodiment, and the aerosol generation article 200 used in conjunction with the aerosol generation device 100. The aerosol generation article 200 is removably housed in the second chamber 31 defined by the second tubular body 30. The heating element 40 of the aerosol generation device 100 is used to heat the aerosol generation article 200 to generate aerosol.

[0063] Once heating is complete, or the preset number of suction ports has been reached, the user can remove the aerosol generating product 200 from the second chamber 31 and then replace it with a new aerosol generating product 200 to continue suction.

[0064] In some embodiments, the wall of the second tubular body 30 is provided with at least one notch 321, so that when the aerosol generating article 200 is housed in the second chamber 31, the inner wall of the first tubular body 20, the outer wall of the second tubular body 30, and the outer surface of the aerosol generating article 200 exposed through the first notch 321 together define and form a third chamber 70 with a larger volume.

[0065] When the user uses the aerosol generating product 200 for suction, the air in the third chamber 70 can flow into the second chamber 31, and further enter the aerosol generating product 200 from the bottom. This can effectively alleviate the problem of low aerosol concentration caused by insufficient internal air content in the aerosol generating device 100 when heating the aerosol generating product 200 in a low-oxygen environment.

[0066] In some embodiments, when the inner wall of the first tubular body 20, the outer wall of the second tubular body 30, and the outer surface of the aerosol generating article 200 jointly define the third chamber 70, the third chamber 70 has a diameter of 200 mm. 3 ~800mm 3 Within a given volume range, the aerosol can have a suitable concentration.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above, which are not provided in detail for the sake of brevity; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An aerosol generating device, characterized in that, include: Heating element, used to heat aerosol-generating products to produce aerosols; The first tubular body defines a first chamber; A second tubular body is disposed in the first chamber. The second tubular body defines a second chamber for receiving at least a portion of the aerosol-generating article. The first chamber has a first opening end and a second opening end disposed opposite to each other along the receiving direction. The first opening end is used for the aerosol-generating article to enter the second chamber, and the second opening end is used to provide an entrance for the second tubular body to enter the first chamber. A first sealing element is disposed at the first opening end. The first sealing element is used to cooperate with the aerosol generating article to seal the first opening end when the aerosol generating article is contained in the second chamber. A second sealing element is disposed at the second opening end and seals the second opening end; The second tubular body has at least one first notch in its wall to expose a portion of the outer surface of the aerosol-generated product, and the outer wall of the second tubular body and the inner wall of the first tubular body maintain a first gap that communicates with the second chamber.

2. The aerosol generating apparatus according to claim 1, characterized in that, The second tubular body includes a first section and a second section connected sequentially along the receiving direction. The first section is used to receive at least a portion of the aerosol generating article. A heating element is disposed in the second section, and the heating element is arranged adjacent to the first section to heat the aerosol generating article to generate aerosol.

3. The aerosol generating apparatus according to claim 2, characterized in that, The heating element includes an air heating element or a light heating element.

4. The aerosol generating apparatus according to claim 2, characterized in that, The first notch is provided in the first section, the first section having a first end and a second end disposed opposite to each other along the receiving direction, the first notch extending from the first end to the second end.

5. The aerosol generating apparatus according to claim 2, characterized in that, The second section is further provided with a holding element having a holding chamber, in which the heating element is held.

6. The aerosol generating apparatus according to claim 5, characterized in that, A third chamber is provided between the inner wall of the first tubular body and the outer wall of the second tubular body. The side wall of the retaining element is provided with at least one second notch, thereby defining a second gap between the heating element and the inner wall of the second section. The second gap is used to guide air in the third chamber into the first section.

7. The aerosol generating apparatus according to claim 2, characterized in that, The second tubular body includes a connecting portion that connects the first section and the second section. The connecting portion includes a first supporting surface for abutting the aerosol generating article and a second supporting surface adjacent to the first supporting surface for abutting the heating element.

8. The aerosol generating apparatus according to claim 2, characterized in that, The second tubular body has a third opening end for the heating element to enter the second chamber, and the third opening end communicates with the first gap.

9. An aerosol generation system, characterized in that, include: The aerosol generating apparatus according to any one of claims 1-8; An aerosol generating article is removably housed in the second chamber, and the aerosol generating apparatus is used to heat the aerosol generating article to generate an aerosol. When the aerosol-generating article is housed in the second chamber, the inner wall of the first tubular body, the outer wall of the second tubular body, and the aerosol-generating article exposed through the first notch together define a third chamber.

10. The aerosol generation system according to claim 9, characterized in that, The third chamber has a volume of 200 mm³ to 800 mm³.

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