Aerosol-generating device and aerosol-generating system

Abstract

The utility model discloses an aerosol generation device and an aerosol generation system, and belongs to the technical field of aerosol generation. The aerosol generating device is provided with a containing cavity used for containing an aerosol generating product. First air holes are formed in the side wall of the accommodating cavity, and second air holes are formed in the bottom wall; the aerosol generating device is further provided with an air channel communicated with the outside, and the air channel is further communicated with the containing cavity through the first air hole and the second air hole. According to the aerosol generating device, the first air hole is formed in the side wall of the containing cavity, the second air hole is formed in the bottom wall of the containing cavity, and the air channel communicates with the second air hole through the first air hole, so that once the aerosol generating product is placed in the containing cavity, the oxygen content in the aerosol generating product in the containing cavity can be increased; and thus, the rate of generating the first mouth aerosol by the aerosol generating product is effectively improved.

Description

Technical Field

[0001] The present application belongs to the technical field of aerosol generation, and specifically relates to an aerosol generating device and an aerosol generating system. Background Art

[0002] As consumers' health awareness increases, the tobacco industry continues to respond to the upgrading of consumer demand and accelerate the research, development, and promotion of new tobacco products. Among them, heat-not-burn aerosol generation technology has been widely regarded as the hope and direction for sustainable development in the tobacco industry. In heat-not-burn aerosol generation technology, an aerosol-generating product is placed in an aerosol-generating device to form an aerosol. However, in related technologies, after the aerosol-generating product is inserted into the aerosol-generating device, it takes a certain amount of time for the aerosol matrix of the aerosol-generating product to reach the aerosol-generating temperature from room temperature, resulting in a slow rate of generation of the first aerosol from the aerosol-generating product. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide an aerosol generating device and an aerosol generating system, which at least solves the problem that after an aerosol generating product is inserted into the aerosol generating device, it takes a certain amount of time for the aerosol matrix of the aerosol generating product to reach the aerosol generating temperature from room temperature, resulting in a slow aerosol generating speed of the aerosol generating product.

[0004] In a first aspect, an embodiment of the present application provides an aerosol generating device, wherein the aerosol generating device is provided with a receiving chamber for receiving an aerosol generating article;

[0005] The side wall of the accommodating cavity is provided with a first air hole, and the bottom wall is provided with a second air hole;

[0006] The aerosol generating device is further provided with an air passage communicating with the outside, and the air passage is further connected with the accommodating cavity through the first air hole and the second air hole respectively.

[0007] In one embodiment, the aperture of the first air hole and / or the second air hole gradually decreases along the air intake direction.

[0008] In one embodiment, at least one of the first air holes is disposed in the middle or upper portion of the accommodating cavity.

[0009] In one embodiment, the number of the first pores is multiple, the sum of the cross-sectional areas of the multiple first pores at the maximum aperture position is S1, the area of ​​the side wall of the accommodating cavity is S2, and the following conditions are satisfied: S1 / S2≤1 / 4; and / or,

[0010] There are multiple second air holes, the sum of the cross-sectional areas of the multiple second air holes at the positions of the maximum apertures is S3, the area of ​​the bottom wall of the accommodating cavity is S4, and the following is satisfied: S3 / S4≤1 / 2.

[0011] In one embodiment, the number of the air channels is multiple, and the first air holes are provided with corresponding multiple air channels. The multiple air channels are spaced apart along the circumferential direction of the accommodating cavity. Each of the air channels is connected to the outside, and each of the air channels is connected to the accommodating cavity through the first air hole and the second air hole corresponding to it.

[0012] In one embodiment, the aerosol generating device further comprises a heating element, which is disposed on a peripheral side of the accommodating cavity and heats the aerosol generating product located in the accommodating cavity.

[0013] The heating element includes at least two heating parts sequentially arranged along the axial direction of the accommodating cavity, and the heating temperature of each heating part gradually decreases from top to bottom.

[0014] In one embodiment, the aerosol generating device includes a fixed support member, and the fixed support member is formed with the accommodating cavity;

[0015] The fixed support member is heat-conducting, the heating element is attached to the outer periphery of the fixed support member, and an air passage is provided between the heating element and the fixed support member, and the first air hole and the second air hole are both connected to the air passage;

[0016] Alternatively, the heating element is embedded in the side wall of the accommodating cavity.

[0017] In one embodiment, the aerosol generating device includes a fixed support member, the fixed support member is formed with the accommodating cavity, and the fixed support member can generate heat, and the fixed support member forms the heating element;

[0018] Alternatively, the heating element is embedded in the inner wall of the accommodating cavity.

[0019] In a second aspect, an embodiment of the present application provides an aerosol generating system, comprising an aerosol generating article and an aerosol generating device as described in any one of the first aspects above.

[0020] In one embodiment, the aerosol-generating article includes a smoking segment. When the aerosol-generating article is mounted on the aerosol-generating device, the smoking segment is located inside the accommodating cavity, and the first air hole faces the outer peripheral surface of the smoking segment.

[0021] The smoking section includes a smoking material and a wrapping member, wherein the wrapping member wraps the smoking material, and the air permeability of the wrapping member gradually decreases along the direction from the cavity opening to the bottom wall of the accommodating cavity.

[0022] In the embodiment of the present application, since the sidewalls of the accommodating chamber are provided with first air holes and the bottom wall of the accommodating chamber is provided with second air holes, once the aerosol-generating article is placed in the accommodating chamber and heated, gas outside the accommodating chamber can enter the air passages, then enter the first and second air holes through the air passages, and ultimately enter the accommodating chamber and contact the aerosol-generating article, thereby increasing the oxygen content in the aerosol-generating article and increasing the rate at which the aerosol-generating article generates the first aerosol. That is, in the embodiment of the present application, by providing the first air holes in the sidewalls of the accommodating chamber and the second air holes in the bottom wall of the accommodating chamber, and by the air passages communicating through the first and second air holes, once the aerosol-generating article is placed in the accommodating chamber, the oxygen content in the aerosol-generating article in the accommodating chamber can be increased, thereby effectively increasing the rate at which the aerosol-generating article generates the first aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram showing an aerosol generating device provided in an embodiment of the present application;

[0024] Figure 2 One of the schematic diagrams showing an aerosol-generating article provided in an embodiment of the present application placed in an aerosol-generating device;

[0025] Figure 3 A second schematic diagram showing an aerosol-generating article provided in an embodiment of the present application placed in an aerosol-generating device;

[0026] Figure 4 express Figure 3 A partial enlarged view of point A in the middle;

[0027] Figure 5 A top view of an aerosol-generating article provided in an embodiment of the present application placed in an aerosol-generating device is shown.

[0028] Reference numerals:

[0029] 101: accommodating chamber; 102: first air hole; 103: second air hole; 104: airway; 20: heating element; 201: heating portion; 30: fixed support member; 300: aerosol generating product; 301: smoking section; 3011: smoking material; 3012: wrapping member; 302: filtering section. DETAILED DESCRIPTION

[0030] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] like Figures 1 to 5 As shown, the aerosol generating device is provided with a accommodating chamber 101 for accommodating the aerosol generating product 300; the side wall of the accommodating chamber 101 is provided with a first air hole 102, and the bottom wall is provided with a second air hole 103; the aerosol generating device is also provided with an air channel 104 connected to the outside, and the air channel 104 is also connected to the accommodating chamber 101 through the first air hole 102 and the second air hole 103 respectively.

[0034] In the embodiment of the present application, since the side wall of the accommodating chamber 101 is provided with the first air hole 102 and the bottom wall is provided with the second air hole 103, once the aerosol generating product 300 is placed in the accommodating chamber 101 and the aerosol generating product 300 is heated, the gas outside the accommodating chamber 101 can enter the airway 104, and then enter the first air hole 102 and the second air hole 103 through the airway 104, and finally enter the accommodating chamber 101 and contact the aerosol generating product 300, thereby increasing the oxygen content in the aerosol generating product 300, and increasing the rate at which the aerosol generating product 300 generates the first aerosol. That is, in the embodiment of the present application, a first air hole 102 is provided on the side wall of the accommodating cavity 101, a second air hole 103 is provided on the bottom wall of the accommodating cavity 101, and the airway 104 is connected with the second air hole 103 through the first air hole 102, 103 respectively. Once the aerosol generating product 300 is placed in the accommodating cavity 101, the oxygen content in the aerosol generating product 300 in the accommodating cavity 101 can be increased, thereby effectively increasing the rate at which the aerosol generating product 300 generates the first aerosol.

[0035] In addition, in the embodiment of the present application, when the side wall of the accommodating cavity 101 is provided with a first air hole 102, once the aerosol generating article 300 is placed in the accommodating cavity 101 and the aerosol generating article 300 is smoked, the gas outside the accommodating cavity 101 can enter the airway 104, and then the gas flows through the first air hole 102, so that the gas contacts the aerosol generating article 300 in the accommodating cavity 101, thereby increasing the oxygen content in the aerosol generating article 300, and increasing the rate at which the aerosol generating article 300 generates the first aerosol. When the bottom wall of the accommodating chamber 101 is provided with a second air hole 103, once the aerosol generating article 300 is placed in the accommodating chamber 101 and the aerosol generating article 300 is smoked, the gas outside the accommodating chamber 101 can enter the airway 104, and then the gas flows through the second air hole 103, so that the gas contacts the aerosol generating article 300 in the accommodating chamber 101, thereby increasing the oxygen content in the aerosol generating article 300, and increasing the rate at which the aerosol generating article 300 generates the first aerosol. When the side wall of the accommodating cavity 101 is provided with the first air hole 102 and the bottom wall is provided with the second air hole 103, that is, the first air hole 102 is provided on the side wall and the second air hole 103 is provided on the bottom wall, at this time, once the aerosol generating article 300 is placed in the accommodating cavity 101 and the aerosol generating article 300 is smoked, oxygen can flow to the side wall and the bottom wall at the same time. Oxygen can flow into the accommodating cavity 101 from the first air hole 102 on the side wall and the second air hole on the bottom wall, so that the oxygen flowing into the accommodating cavity 101 is further increased, which helps to increase the rate at which the aerosol generating article 300 generates the first aerosol.

[0036] It should be noted that the aerosol generating product 300 has a smoke generating section 301. When the aerosol generating product 300 is placed in the receiving chamber 101, the smoke generating section 301 can be located in the receiving chamber 101, and the other parts of the aerosol generating product 300 are located outside the receiving chamber 101. When the user inhales the aerosol generating product 300, the smoke generating section 301 has a negative pressure, causing the gas to flow into the airway 104, and the gas enters the first air hole 102 and the second air hole 103 from the airway 104 respectively. The gas enters the receiving chamber 101, providing oxygen to the receiving chamber 101. That is, when the smoking segment 301 is heated to make it smoke, the air outside the accommodating chamber 101 flows through the air duct 104 to the periphery of the first air hole 102 and the second air hole 103, and flows into the accommodating chamber 101 through the first air hole 102 and the second air hole 103 to contact the smoking segment 301, and the oxygen in the air can enter the smoking segment 301, so that the oxygen content in the smoking segment 301 is increased, which is conducive to the smoking of the smoking segment 301, that is, the smoking rate of the smoking segment 301 is increased, that is, the rate at which the aerosol generating article 300 generates the first aerosol is increased.

[0037] Additionally, in some embodiments, Figure 3 and Figure 4 As shown, the apertures of the first air holes 102 and / or the second air holes 103 gradually decrease along the air intake direction.

[0038] Once air from outside the accommodating chamber 101 flows around the first pores 102 and the second pores 103, the air can enter the accommodating chamber 101 along the first pores 102 and the second pores 103. By gradually reducing the apertures of the first pores 102 and / or the second pores 103 along the air inlet direction, the air is caused to flow from a larger opening to a smaller opening. Due to the Venturi effect, i.e., the flow velocity increases when a fluid passes through a gradually shrinking channel, the air velocity at the smaller opening is greater than the air velocity at the smaller opening. This increases the velocity of the air flowing into the smaller opening, facilitating the entry of air into the interior of the aerosol-generating article 300. This facilitates the entry of oxygen in the air into the interior of the aerosol-generating article 300, thereby increasing the oxygen content in the aerosol-generating article 300. This facilitates the generation of smoke from the aerosol-generating article 300 upon heating, thereby increasing the smoke generation rate of the aerosol-generating article 300. Furthermore, once the aerosol generating article 300 emits smoke, that is, the aerosol generating article 300 forms an aerosol, the aerosol flows from the orifice with a smaller area to the orifice with a larger area, thereby avoiding the problem of aerosol backflow.

[0039] It should be noted that the air intake direction refers to the direction in which the gas in the air passage 104 flows into the accommodating chamber 101. In addition, in the embodiment of the present application, the aperture of only the first air hole 102 can be gradually reduced along the air intake direction, or the aperture of only the second air hole 103 can be gradually reduced along the air intake direction, or the aperture of the first air hole 102 and the aperture of the second air hole 103 can be gradually reduced along the air intake direction.

[0040] In addition, in the embodiment of the present application, the shapes of the first pore 102 and the second pore 103 can be set according to actual needs, as long as the aperture of the first pore 102 gradually decreases along the air intake direction and the aperture of the second pore 103 gradually decreases along the air intake direction.

[0041] In addition, in the embodiment of the present application, the number of first air holes 102 can be set according to actual needs. For example, the number of first air holes 102 is six, and for another example, the number of first air holes 102 is nine. The embodiment of the present application does not limit the specific number of first air holes 102. When there are multiple first air holes 102, the multiple first air holes 102 can be evenly distributed. For example, the multiple first air holes 102 can be spaced apart along the circumference of the accommodating cavity 101.

[0042] Furthermore, in the embodiment of the present application, when there are multiple first air holes 102, the multiple first air holes 102 can be spaced apart in the direction from the cavity opening to the bottom wall. In this case, the different first air holes 102 are at different distances from the cavity opening. This arrangement allows the gas to enter the airway 104 through the first air holes 102 at different locations from the cavity opening and enter the accommodating cavity 101. This allows oxygen to enter at different heights of the smoking section in the accommodating cavity 101, thereby increasing the smoking rate of the smoking section.

[0043] In addition, along the direction from the cavity opening to the bottom wall, multiple circles of first air holes 102 are provided on the side wall along the circumferential direction of the accommodating cavity. Each circle of first air holes 102 is located in the same plane, and each circle of first air holes 102 includes multiple first air holes 102. The multiple first air holes 102 in each circle of first air holes 102 can be evenly spaced, but of course, they can also be unequally spaced. Moreover, along the direction from the cavity opening to the bottom wall, the distance between two adjacent circles of first air holes 102 can be equal, that is, the multiple circles of first air holes 102 are evenly spaced, but of course, they can also be unequally spaced. This embodiment of the present application is not limited to this.

[0044] Additionally, in some embodiments, Figure 1 、 Figure 2 and Figure 3 As shown, at least one first air hole 102 is disposed in the middle or upper portion of the accommodating cavity 101 .

[0045] The air enters the airway 104 along the direction from the cavity opening of the accommodating cavity 101 to the bottom wall of the accommodating cavity 101, and the first air hole 102 is arranged in the middle or upper part of the accommodating cavity 101, so that the air entering the airway 104 first enters the accommodating cavity 101 through the first air hole 102. Once the smoking section 301 of the aerosol generating article 300 is placed in the accommodating cavity 101, the air can quickly contact the smoking section 301 in the accommodating cavity 101, so that the oxygen content in the smoking section 301 increases, which is beneficial to increasing the smoking rate of the smoking section 301, that is, it is beneficial to increasing the rate at which the aerosol generating article 300 generates the first aerosol.

[0046] Additionally, in some embodiments, Figure 1 As shown, along the direction from the cavity opening to the bottom wall of the accommodating cavity 101 , the length of the accommodating cavity 101 is L, and the distance between the first air hole 102 and the cavity opening is less than or equal to 0.8L.

[0047] With this arrangement, once the air outside the accommodating chamber 101 enters the air passage 104, the air flows for a distance in the air passage 104 and then flows to the first air hole 102. Part of the air directly enters the accommodating chamber 101, while the other part of the air continues to move downward through the first air hole 102, enters the accommodating chamber 101 through the second air hole 103 on the bottom wall, and enters the bottom of the smoking section 301 of the aerosol generating article 300, and moves upward from the bottom of the smoking section 301. The distance between the first air hole 102 and the cavity opening is less than or equal to 0.8 L, ensuring a greater distance between the first air hole 102 and the bottom wall. This allows air flowing from the second air hole 103 into the smoking section 301 to travel a longer distance, thereby increasing the oxygen content in the aerosol-generating article 300. Furthermore, the air flowing from the first air hole 102 into the smoking section 301 also increases the oxygen content in the smoking section 301 after entering the smoking section 301, thereby facilitating an increase in the aerosol generation rate of the aerosol-generating article 300. Furthermore, the distance between the first air hole 102 and the cavity opening is less than or equal to 0.8 L. This shifts the weightlessness temperature of the smoking section 301 forward after the smoking section 301 is placed in the accommodating cavity 101, thereby enabling the aerosol-generating article 300 to rapidly generate aerosol.

[0048] In addition, in some embodiments, the number of the first air holes 102 is multiple, the sum of the areas of the multiple first air holes 102 at the maximum aperture position is S1, the area of ​​the side wall of the accommodating cavity 101 is S2, and the following conditions are met: S1 / S2≤1 / 4; and / or, the number of the second air holes 103 is multiple, the sum of the areas of the multiple second air holes 103 at the maximum aperture position is S3, the area of ​​the bottom wall of the accommodating cavity 101 is S4, and the following conditions are met: S3 / S4≤1 / 2.

[0049] When S1 / S2 ≤ 1 / 4, the total area of ​​the first air holes 102 formed on the sidewall of the accommodating chamber 101 occupies a relatively small portion of the sidewall area of ​​the accommodating chamber 101. This minimizes the reduction in strength of the sidewall of the accommodating chamber 101 while ensuring that air entering the airway 104 can smoothly enter the accommodating chamber 101. In other words, by setting S1 / S2 ≤ 1 / 4, it is possible to ensure that air entering the airway 104 effectively enters the accommodating chamber 101 while also ensuring that the sidewall of the accommodating chamber 101 has sufficient strength, thereby extending the service life of the aerosol generating device.

[0050] When S3 / S4 ≤ 1 / 2, the total area of ​​the second air holes 103 formed on the bottom wall of the accommodating chamber 101 occupies a relatively small portion of the bottom wall area of ​​the accommodating chamber 101. This minimizes the reduction in strength of the bottom wall of the accommodating chamber 101 while ensuring that air entering the airway 104 can smoothly enter the accommodating chamber 101. In other words, by setting S3 / S4 ≤ 1 / 2, it is possible to ensure that air entering the airway 104 effectively enters the accommodating chamber 101 while also ensuring that the bottom wall of the accommodating chamber 101 has sufficient strength, thereby extending the service life of the aerosol generating device.

[0051] It should be noted that the specific value of S1 / S2 can be any value less than or equal to 1 / 4. For example, S1 / S2 is equal to 1 / 4, and another example is S1 / S2 is equal to 1 / 6. This embodiment of the present application is not limited to this. In addition, the specific value of S3 / S4 can be any value less than or equal to 1 / 2. For example, S3 / S4 is equal to 1 / 2, and another example is S3 / S4 is equal to 1 / 4. This embodiment of the present application is not limited to this.

[0052] In addition, in some embodiments, the average diameter of each second pore 103 is L1, and the diameter of the aerosol generating article 300 is L2, satisfying: L1≤1 / 2L2.

[0053] By setting L1≤1 / 2L2, the aperture of the second air pores 103 can be ensured to be small, thereby allowing the number of second air pores 103 on the bottom wall of the accommodating cavity 101 to be larger, so that the air entering the airway 104 can contact the aerosol generating article 300 in the accommodating cavity 101 through a larger number of second air pores 103, so that the aerosol generating article 300 can be in more uniform contact with the air, which is beneficial to improving the smoking rate of the aerosol generating article 300.

[0054] It should be noted that L1 can be any value less than or equal to L2, for example, L1≤1 / 2L2, for another example, L1≤1 / 3L2, and for another example, L1≤1 / 5L2.

[0055] In addition, in some embodiments, there are multiple air channels 104, and the multiple air channels 104 are spaced apart along the circumferential direction of the accommodating cavity 101. The first air holes 102 are provided with multiple corresponding air channels 104, each air channel 104 is connected to the outside, and each air channel 104 is connected to the accommodating cavity 101 through the corresponding first air hole 102 and the second air hole 103.

[0056] With this arrangement, once the smoking section 301 of the aerosol-generating article 300 is placed in the accommodating chamber 101, external air can simultaneously enter the multiple air passages 104. Each air passage 104 is connected to the accommodating chamber 101 via at least one first air hole 102 and at least one second air hole 103. This means that air entering the multiple air passages 104 can simultaneously enter the accommodating chamber 101, rapidly increasing the oxygen content in the smoking section 301 and thereby effectively increasing the rate at which the smoking section 301 generates the first aerosol. In other words, by providing multiple air passages 104, the rate at which the smoking section 301 generates the first aerosol can be further increased.

[0057] Additionally, in some embodiments, Figure 1 As shown, the aerosol generating device may further include a heating element 20, which is arranged on the peripheral side of the accommodating cavity 101 to heat the aerosol generating product 300 located in the accommodating cavity 101; the heating element 20 includes at least two heating portions 201 arranged in sequence along the axial direction of the accommodating cavity 101, and the heating temperature of each heating portion 201 gradually decreases from top to bottom.

[0058] Since the heating element 20 is arranged on the circumferential side of the accommodating cavity 101, once the aerosol generating product 300 is placed in the accommodating cavity 101, the heating element 20 can generate heat to heat the aerosol generating product 300 in the accommodating cavity 101, so that the aerosol generating product 300 is heated to generate aerosol. In addition, the heating element 20 is arranged on the circumferential side of the accommodating cavity 101, so that the aerosol generating product 300 can be heated along the circumferential direction of the aerosol, so that the aerosol generating product 300 is heated evenly to facilitate the generation of aerosol. In addition, the heating temperature of each heating part 201 gradually decreases from top to bottom, which is equivalent to gradually decreasing the heating temperature of each heating part 201 along the direction from the cavity mouth of the accommodating cavity 101 to the bottom wall of the accommodating cavity 101. Therefore, once the air enters the airway 104, the air can first enter the accommodating cavity 101 through the first air hole 102, and the temperature at the position where the first air hole 102 is located is greater than the temperature at the position where the second air hole 103 is located, so that the weightlessness temperature of the aerosol generating product 300 moves forward, which is conducive to the generation of aerosol by the aerosol generating product 300. In addition, the heating temperature of each heating portion 201 gradually decreases from top to bottom, so that when the smoking section 301 in the accommodating cavity 101 is smoking, the temperature of the upper part of the smoking section 301 is higher and the temperature of the lower part of the smoking section 301 is lower, so that the upper part of the smoking section 301 smokes first, and after the upper part of the smoking section 301 has completely smoked, the lower part of the smoking section 301 mainly smokes, so that the puff-by-puff consistency of the aerosol generating product 300 is improved, which can effectively avoid the smoking section 301 from smoking quickly, and improve the problem that the aerosol generating product 300 smokes too thick at certain times and smokes too thin at other times.

[0059] Additionally, in some embodiments, Figure 3 As shown, the aerosol generating device may include a fixed support member 30, which is formed with a accommodating cavity 101; the fixed support member 30 is heat-conducting, the heating element 20 is attached to the outer periphery of the fixed support member 30, and an air channel 104 is provided between the heating element 20 and the fixed support member 30, and the first air hole 102 and the second air hole 103 are both connected to the air channel 104.

[0060] Because the fixed support member 30 forms a receiving cavity 101, the aerosol-generating article 300 can be placed in the receiving cavity 101 formed by the fixed support member 30. The fixed support member 30 is heat-conducting, and the heating element 20 is disposed around the fixed support member 30. Therefore, once the heating element 20 generates heat, the heat is conducted through the fixed support member 30 to the aerosol-generating article 300 in the receiving cavity 101, heating the aerosol-generating article 300 and facilitating aerosol generation. Furthermore, an air passage 104 is disposed between the heating element 20 and the fixed support member 30. The first air hole 102 and the second air hole 103 are both connected to the air passage 104. After entering the air passage 104, air can flow to the first air hole 102 and the second air hole 103, and ultimately into the aerosol-generating article 300. This increases the oxygen content in the aerosol-generating article 300 and facilitates aerosol generation by the aerosol-generating article 300.

[0061] In addition, in some embodiments, the fixed support member 30 is formed with a receiving cavity 101, and the fixed support member 30 can generate heat, and the fixed support member 30 forms a heating element 20; or Figure 2 As shown, the heating element 20 is embedded in the side wall of the accommodating cavity 101 .

[0062] When the fixed support member 30 forms the heating element 20, once the aerosol-generating article 300 is placed in the accommodating cavity 101, the fixed support member 30 itself can generate heat, thereby directly heating the aerosol-generating article 300, causing the aerosol-generating article 300 to generate aerosol. Specifically, since the fixed support member 30 can generate heat, the fixed support member 30 can directly heat the aerosol-generating article 300 when heating it, and less heat is lost due to conduction, resulting in more efficient heating of the aerosol-generating article 300 and facilitating aerosol generation by the aerosol-generating article 300.

[0063] When the heating element 20 is embedded in the side wall of the container, it is equivalent to the heating element 20 being embedded in the fixed support member 30. Therefore, once the heating element 20 generates heat, the heat of the heating element 20 will also be transferred to the fixed support member 30, so that the fixed support member 30 conducts the heat to the aerosol generating product 300 in the container cavity 101, thereby facilitating the aerosol generating product 300 to generate aerosol.

[0064] In the embodiment of the present application, since the side wall of the accommodating cavity 101 is provided with the first air hole 102 and the bottom wall is provided with the second air hole 103, once the aerosol generating product 300 is placed in the accommodating cavity 101 and the aerosol generating product 300 is heated, the gas outside the accommodating cavity 101 can enter the air channel 104, and then enter the first air hole 102 and the second air hole 103 through the air channel 104, and finally enter the accommodating cavity 101 and contact the aerosol generating product 300, thereby increasing the oxygen content in the aerosol generating product 300, so that the rate at which the aerosol generating product 300 generates the first aerosol. That is, in the embodiment of the present application, a first air hole 102 is provided on the side wall of the accommodating cavity 101, a second air hole 103 is provided on the bottom wall of the accommodating cavity 101, and the airway 104 is connected with the second air hole 103 through the first air hole 102, 103 respectively. Once the aerosol generating product 300 is placed in the accommodating cavity 101, the oxygen content in the aerosol generating product 300 in the accommodating cavity 101 can be increased, thereby effectively increasing the rate at which the aerosol generating product 300 generates the first aerosol.

[0065] An embodiment of the present application provides an aerosol generating system, including an aerosol generating article 300 and an aerosol generating device in any of the above embodiments.

[0066] In addition, in some embodiments, the aerosol generating product 300 includes a smoking segment 301. When the aerosol generating product 300 is installed in the aerosol generating device, the smoking segment 301 is located inside the accommodating cavity 101, and the first air hole 102 is opposite to the outer peripheral surface of the smoking segment 301; the smoking segment 301 may include a smoking material 3011 and a wrapping member 3012, and the wrapping member 3012 wraps the smoking material 3011. Along the direction from the cavity opening to the bottom wall of the accommodating cavity 101, the air permeability of the wrapping member 3012 gradually decreases.

[0067] In the embodiment of the present application, since the smoking segment 301 is located within the accommodating cavity 101 and the first air hole 102 faces the outer circumference of the smoking segment 301, when the aerosol-generating article 300 is heated, only the smoking segment 301 is heated, thereby generating smoke from the smoking segment 301, i.e., generating aerosol. In other words, placing the smoking segment 301 within the accommodating cavity 101 facilitates the generation of smoke from the smoking segment 301. And after the smoking segment 301 is placed in the accommodating cavity 101, once the air enters the airway 104, the air flows to the first air hole 102, and then flows to the smoking segment 301 through the first air hole 102, and the air also flows to the bottom of the smoking segment 301 through the second air hole 103. Along the direction from the cavity mouth to the bottom wall of the accommodating cavity 101, the air permeability of the wrapping 3012 gradually decreases, so that more air flows into the upper part of the smoking segment 301 and less air flows into the bottom of the smoking segment 301, so that the upper part of the smoking segment 301 is easy to smoke after being heated, that is, once the air enters the airway 104, it can quickly enter the interior of the smoking segment 301, causing the smoking segment 301 to smoke, thereby increasing the rate at which the smoking segment 301 generates the first aerosol. Specifically, by gradually decreasing the air permeability of the wrapping member 3012 from the opening of the accommodating cavity 101 to the bottom wall, the rate of smoke generation from the smoking segment 301 can be effectively increased. Furthermore, the gradually decreasing air permeability of the wrapping member 3012 allows more air to flow into the upper portion of the smoking segment 301, while less air flows into the lower portion of the smoking segment 301 during smoke generation within the accommodating cavity 101. Consequently, the upper portion of the smoking segment 301 generates smoke first, and after the upper portion of the smoking segment 301 has completely generated smoke, the lower portion of the smoking segment 301 primarily generates smoke. This improves the puff-by-puff consistency of the aerosol-generating article 300, effectively preventing the entire smoking segment 301 from rapidly generating smoke, and addressing the issue of the aerosol-generating article 300 generating excessively strong smoke at certain times and weak smoke at other times.

[0068] In addition, in the embodiment of the present application, the aerosol generating article 300 may further include a filter section 302 , which is connected to the smoke generating section 301 .

[0069] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0070] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An aerosol generating device, characterized in that The aerosol generating device is provided with a receiving chamber for receiving the aerosol generating article; The side wall of the accommodating cavity is provided with a first air hole, and the bottom wall is provided with a second air hole; The aerosol generating device is further provided with an air passage communicating with the outside, and the air passage is further connected with the accommodating cavity through the first air hole and the second air hole respectively.

2. The aerosol generating device according to claim 1, wherein The aperture of the first air hole and / or the second air hole gradually decreases along the air intake direction.

3. The aerosol generating device according to claim 1, wherein At least one of the first air holes is arranged in the middle or upper part of the accommodating cavity.

4. The aerosol generating device according to claim 2, wherein: There are multiple first pores, the sum of the cross-sectional areas of the multiple first pores at the positions of the maximum apertures is S1, the area of ​​the side wall of the accommodating cavity is S2, and the following is satisfied: S1 / S2≤1 / 4; and / or, There are multiple second air holes, the sum of the cross-sectional areas of the multiple second air holes at the positions of the maximum apertures is S3, the area of ​​the bottom wall of the accommodating cavity is S4, and the following is satisfied: S3 / S4≤1 / 2.

5. The aerosol generating device according to claim 3, wherein: There are multiple air channels, and the first air holes are provided with multiple corresponding air channels. The multiple air channels are spaced apart along the circumferential direction of the accommodating cavity. Each of the air channels is connected to the outside, and each of the air channels is connected to the accommodating cavity through the first air hole and the second air hole corresponding to it.

6. The aerosol generating device according to claim 1, wherein: The aerosol generating device further comprises a heating element, which is arranged on the periphery of the accommodating cavity and heats the aerosol generating product located in the accommodating cavity; The heating element includes at least two heating parts sequentially arranged along the axial direction of the accommodating cavity, and the heating temperature of each heating part gradually decreases from top to bottom.

7. The aerosol generating device according to claim 6, wherein: The aerosol generating device comprises a fixed support member, wherein the fixed support member is formed with the accommodating cavity; The fixed support member is heat-conducting, the heating element is attached to the outer periphery of the fixed support member, and an air channel is provided between the heating element and the fixed support member, and the first air hole and the second air hole are both connected to the air channel.

8. The aerosol generating device according to claim 6, wherein: The aerosol generating device includes a fixed support member, the fixed support member is formed with the accommodating cavity, and the fixed support member can generate heat, and the fixed support member forms the heating element; Alternatively, the heating element is embedded in the inner wall of the accommodating cavity.

9. An aerosol generating system, characterized in that The invention comprises an aerosol generating product and an aerosol generating device according to any one of claims 1 to 8.

10. An aerosol generating system according to claim 9, characterized in that The aerosol generating article includes a smoking segment. When the aerosol generating article is mounted on the aerosol generating device, the smoking segment is located inside the accommodating cavity, and the first air hole faces the outer peripheral surface of the smoking segment. The smoking section includes a smoking material and a wrapping member, wherein the wrapping member wraps the smoking material, and the air permeability of the wrapping member gradually decreases along the direction from the cavity opening to the bottom wall of the accommodating cavity.

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