Aerosol production system

Abstract

The utility model relates to the technical field of aerosol generation, and provides an aerosol production system which comprises a shell assembly and an aerosol substrate. A containing cavity is formed in the shell assembly. The aerosol substrate comprises a substrate section, a cooling section and a suction section which are connected in sequence, and an air inlet communicated with the outside atmosphere is formed in the cooling section; at least part of the substrate section is arranged in the accommodating cavity and is used for generating aerosol; an air inlet channel is formed between the aerosol substrate and the cavity wall of the accommodating cavity, and the air inlet channel communicates the external atmosphere with the substrate section; when the suction section is sucked, the airflow resistance at the air inlet hole is smaller than the airflow resistance at the air inlet channel. According to the aerosol production system, the air inlet holes of the cooling section can be used for extracting aerosol naturally generated by the matrix section in a low-oxygen state, airflow of the air inlet channel can flow to the cooling section through the matrix section, the aerosol generated by the matrix section can be more quickly diffused to the cooling section, and therefore the aerosol amount of the extracted aerosol is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerosol generating technology, in particular to an aerosol production system. BACKGROUND

[0002] In the heating mode in the field of aerosol generating technology, there is a NSCs (Nature Smoke) oxygen-free heating technology. The NSCs refers to that the bottom of the aerosol substrate is sealed, the aerosol is naturally generated in the oxygen-free or low-oxygen state, the aerosol diffuses to the oxygen-containing area, and the aerosol is extracted by the air flow through the air inlet hole of the temperature drop section.

[0003] However, in the NSCs technology, the aerosol extracted by the air flow through the air inlet hole of the temperature drop section to generate negative pressure is less, and the user experience is poor. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an aerosol production system, which solves the problem of small aerosol mist amount and poor user experience in the NSCs technology.

[0005] In order to solve the above technical problems, the present application provides an aerosol production system, which comprises a shell assembly and an aerosol substrate. The shell assembly is provided with a containing cavity; the aerosol substrate comprises a substrate section, a temperature drop section and a suction section connected in sequence, and the temperature drop section is provided with an air inlet hole communicating with the outside atmosphere; at least part of the substrate section is arranged in the containing cavity to generate aerosol; an air inlet channel is formed between the aerosol substrate and the cavity wall of the containing cavity, and the air inlet channel communicates the outside atmosphere with the substrate section; when the suction section is suctioned, the air flow resistance at the air inlet hole is smaller than the air flow resistance at the air inlet channel.

[0006] In an embodiment, the air flow resistance at the air inlet hole is R1, and the air flow resistance at the air inlet channel is R2, wherein 1.5% < R1 / R2 < 15%.

[0007] In an embodiment, the total area of the radial cross sections of all air inlet holes on the temperature drop section is Amm 2 , and the minimum area of the radial cross section of the air inlet channel is Bmm 2 , wherein 10B>A>B.

[0008] In an embodiment, the flow rate at the air inlet hole is greater than the flow rate at the air inlet channel, and the flow rate at the air inlet hole is greater than the flow rate at the air inlet channel, wherein the ratio of the flow rate at the air inlet hole to the flow rate at the air inlet channel is inversely proportional to R1 / R2; or, the ratio of the flow rate at the air inlet hole to the flow rate at the air inlet channel is inversely proportional to R1 / R2.

[0009] In an embodiment, the shell assembly comprises a first support and a second support, and the aerosol production system further comprises a heating tube, the heating tube being mounted to the first support and the second support and cooperating with the first support and the second support to form the accommodation cavity.

[0010] In an embodiment, the air inlet channel comprises a first channel, a second channel and a third channel connected in sequence, the first channel being formed between the first support and the aerosol substrate, the second channel being formed between the heating tube and the aerosol substrate, and the third channel being formed between the second support and the aerosol substrate, and the airflow entering the aerosol production system being capable of entering the substrate section via the first channel, the second channel and the third channel.

[0011] In an embodiment, the radial cross section of the first channel is smaller than the radial cross sections of the second channel and the third channel, or the radial cross section of the second channel is smaller than the radial cross sections of the first channel and the third channel, or the radial cross section of the third channel is smaller than the radial cross sections of the first channel and the second channel.

[0012] In an embodiment, the first support has a mounting cavity formed therein, one end of the mounting cavity having a socket for the aerosol substrate to be inserted into and withdrawn from the interior of the first support, the second support being arranged at the end of the mounting cavity away from the socket, and the heating tube being arranged in the mounting cavity and having one end abutting the end of the first support close to the socket and the other end abutting the second support.

[0013] In an embodiment, the second support comprises a circumferentially enclosed side wall and a bottom wall connected to the side wall, the side wall being provided with a plurality of convex ribs distributed in the circumferential direction, the convex ribs being used to contact the side surface of the aerosol substrate, and the bottom wall being provided with a supporting portion used to abut the bottom surface of the aerosol substrate; when the aerosol substrate is inserted into the accommodation cavity and abuts the supporting portion, a first air inlet sub-channel is formed between the portion of the side wall between the plurality of convex ribs and the aerosol substrate, and a second air inlet sub-channel is formed between the bottom wall and the aerosol substrate, and external air can flow into the aerosol substrate via the first air inlet sub-channel and the second air inlet sub-channel.

[0014] In an embodiment, the end of the first support close to the socket is provided with a plurality of convex blocks distributed in the circumferential direction, the convex blocks being used to contact the side surface of the aerosol substrate, and when the aerosol substrate is inserted into the accommodation cavity, a first channel is formed between the plurality of convex blocks of the first support and the aerosol substrate.

[0015] The application provides an aerosol production system, comprising a shell assembly and an aerosol substrate. The shell assembly is provided with a containing cavity; the aerosol substrate comprises a substrate section, a cooling section and a smoking section connected in sequence, and the cooling section is provided with an air inlet hole communicating with the outside atmosphere; at least part of the substrate section is arranged in the containing cavity to generate aerosol; an air inlet channel is formed between the aerosol substrate and the cavity wall of the containing cavity, and the air inlet channel communicates the outside atmosphere with the substrate section; when the smoking section is smoked, the air flow resistance at the air inlet hole is smaller than the air flow resistance at the air inlet channel. The aerosol production system can extract the aerosol naturally generated by the substrate section through the air inlet hole of the cooling section of the aerosol substrate, and because the air inlet channel is formed between the aerosol substrate and the cavity wall of the containing cavity, the air inlet channel can communicate the outside atmosphere with the substrate section of the aerosol substrate, so that the air flow of the air inlet channel can flow to the cooling section through the substrate section, which can make the aerosol generated by the substrate section diffuse to the cooling section faster, thereby improving the aerosol amount of the extracted aerosol, and by setting the air flow resistance at the air inlet hole smaller than the air flow resistance at the air inlet channel, the aerosol substrate is mainly heated in a low-oxygen state (i.e. NSCs technology), which reduces the proportion of air entering the aerosol substrate, and can make the heating consistency of the aerosol substrate better. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structural schematic diagram of an aerosol production system provided by an embodiment of the application is provided;

[0017] Figure 2 A sectional view of Figure 1 ;

[0018] Figure 3 An exploded view of Figure 1 ;

[0019] Figure 4 A structural schematic diagram of a shell assembly, a heating pipe and an aerosol substrate provided by an embodiment of the application is provided;

[0020] Figure 5 An exploded view of Figure 4 ;

[0021] Figure 6 A flow direction diagram of Figure 4 ;

[0022] Figure 7 A structural schematic diagram of a first support provided by an embodiment of the application is provided;

[0023] Figure 8 A structural schematic diagram of a second support provided by an embodiment of the application is provided.

[0024] BRIEF DESCRIPTION OF DRAWINGS: The housing assembly 10, the accommodating cavity 11, the first support 12, the mounting cavity 121, the socket 1211, the protrusion 122, the second support 13, the side wall 131, the convex rib 1311, the bottom wall 132, the supporting portion 1321, the aerosol substrate 20, the substrate segment 21, the cooling segment 22, the air inlet hole 221, the suction segment 23, the air inlet channel 30, the first channel 31, the second channel 32, the third channel 33, the first air inlet sub-channel 331, the second air inlet sub-channel 332, the heating pipe 40. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with specific embodiments and the accompanying drawings. Like numbers in different figures represent the same or similar elements. In the following embodiments, many specific details are described in order to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without some or all of these details. In other instances, well known process steps have not been described in detail in order not to unnecessarily obscure the application. Embodiments of the application can include various elements, steps, methods, and / or functions described herein, and some of these elements, steps, methods, and / or functions can be combined into more composite elements, steps, methods, and / or functions and / or further divided into sub-elements, steps, methods, and / or functions. Embodiments of the application can be used in combination with each other and / or with other devices, methods, and / or instructions unless otherwise indicated.

[0026] In addition, the features, operations, or steps described in the specification can be combined in any suitable manner in various embodiments, and the order of the operations / steps can be adjusted as necessary to achieve the intended purpose. Therefore, the specification and the accompanying drawings are merely intended to clearly describe some embodiments, and do not mean to be mandatory components and / or orders.

[0027] In this document, the ordinal numbers for components, such as "first", "second", etc., are used only to distinguish the described objects, and do not have any sequential or technical meaning. In this document, "connected" or "coupled" means direct and indirect connections (couplings) unless otherwise specified.

[0028] The terms "parallel", "perpendicular" and the like are defined in relation to the current process level, rather than the absolute strict definition in mathematics, and a small deviation is allowed, and approximately parallel, approximately perpendicular and the like are also allowed. For example, A is parallel to B, which means that A is parallel to B or approximately parallel to B, and the included angle between A and B is between 0° and 10°. For example, A is perpendicular to B, which means that A is perpendicular to B or approximately perpendicular to B, and the included angle between A and B is between 80° and 100°. The orientation terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side" and the like, are only the directions of the drawings, therefore, the orientation terms are used to better and more clearly illustrate and understand the embodiments of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0029] Please refer to Figures 1-5 The present application provides an aerosol production system, which comprises a housing assembly 10 and an aerosol substrate 20.

[0030] The housing assembly 10 is provided with a containing cavity 11, which can be a containing cavity 11 formed by the housing assembly 10, a containing cavity 11 formed by a part provided in the housing assembly 10, or a containing cavity 11 formed by cooperation of the housing assembly 10 and the part provided in the housing assembly 10. The containing cavity 11 is used to contain the aerosol substrate 20, and the aerosol substrate 20 can be heated in the containing cavity 11 to generate aerosol.

[0031] The aerosol substrate 20 comprises a substrate section 21, a cooling section 22 and a suction section 23 connected in sequence. At least part of the substrate section 21 is arranged in the containing cavity 11, and the suction section 23 can be arranged outside the aerosol production system, so that a user can suck the suction section 23 to suck the aerosol generated by the substrate section 21. The substrate section 21 contains a leafy substrate, which can generate aerosol after being heated.

[0032] The cooling section 22 is provided with an air inlet hole 221 communicating with the outside atmosphere, and the number of the air inlet hole 221 can be one or more. Preferably, the number of the air inlet hole 221 is multiple, and the multiple air inlet holes 221 are distributed along the circumference of the aerosol substrate 20 to increase the air intake of the cooling section 22. Figure 6As shown, when the substrate section 21 is heated in the containing cavity 11, an aerosol is generated in a low-oxygen state. When a user sucks, the airflow enters the inner part of the cooling section 22 from the air inlet hole 221 of the cooling section 22. Due to the fast flow rate of the airflow entering the cooling section 22 from the air inlet hole 221, a negative pressure is generated in the cooling section 22, so that the aerosol generated by the substrate section 21 is affected by the negative pressure and moves towards the cooling section 22, and finally is sucked by the user from the suction section 23. When there is a large amount of air in the substrate section 21 during the heating process, the temperature of the substrate section 21 will change greatly, which will cause the cracking reaction to be unstable and the consistency of the generated aerosol to be poor. However, the heating of the substrate section 21 in a low-oxygen state can ensure that the consistency of the aerosol generated by the substrate section 21 is high.

[0033] As shown in FIGS. 1 and 2, the aerosol substrate 20 is arranged in the containing cavity 11, and the aerosol substrate 20 and the cavity wall of the containing cavity 11 form an air inlet channel 30. The air inlet channel 30 communicates the external atmosphere with the substrate section 21, that is, one end of the air inlet channel 30 communicates with the external atmosphere, and the other end of the air inlet channel 30 communicates with the substrate section 21. Figure 3 and Figure 5 As shown, when the aerosol substrate 20 is arranged in the containing cavity 11, the air inlet channel 30 is formed between the aerosol substrate 20 and the cavity wall of the containing cavity 11. The air inlet channel 30 communicates the external atmosphere with the substrate section 21, that is, one end of the air inlet channel 30 communicates with the external atmosphere, and the other end of the air inlet channel 30 communicates with the substrate section 21. The air inlet end of the air inlet channel 30 is arranged close to the cooling section 22, and the air outlet end of the air inlet channel 30 is arranged close to one end of the substrate section 21 away from the cooling section 22, so that the air inlet channel 30 can take in air from the top of the containing cavity 11, pass through the gap between the shell assembly 10 and the cavity wall of the containing cavity 11, and reach the bottom of the substrate section 21, and finally flow into the substrate section 21 from the bottom of the substrate section 21. Therefore, in the oxygen-free heating scheme of the present application, the bottom of the aerosol substrate 20 is not completely sealed, but can allow the airflow in the air inlet channel 30 to flow in. The bottom of the aerosol substrate of the NSCs in the prior art is a completely sealed structure.

[0034] When the user sucks the suction section 23, the airflow resistance at the air inlet hole 221 is smaller than the airflow resistance at the air inlet channel 30. Therefore, it can be ensured that the airflow flow rate of the air inlet hole 221 into the aerosol substrate 20 is relatively large, and the airflow flow rate of the air inlet channel 30 into the aerosol substrate 20 is relatively small, so as to ensure that the substrate section 21 is heated in a low-oxygen state. It should be noted that when the inner diameters of the air inlet hole 221 and the air inlet channel 30 are variable, the average value of the airflow resistance of the air inlet hole 221 can be smaller than the average value of the airflow resistance of the air inlet channel 30, or the maximum value of the airflow resistance of the air inlet hole 221 can be smaller than the minimum value of the airflow resistance of the air inlet channel 30.

[0035] The aerosol production system of the present application can extract the aerosol naturally generated by the substrate section 21 of the aerosol substrate 20 in a low-oxygen state through the air inlet hole 221 of the cooling section 22 of the aerosol substrate 20, and since the air inlet passage 30 is formed between the aerosol substrate 20 and the cavity wall of the containing cavity 11, the air inlet passage 30 can communicate the external atmosphere with the substrate section 21 of the aerosol substrate 20, so that the airflow of the air inlet passage 30 can flow to the cooling section 22 through the substrate section 21, which can make the aerosol generated by the substrate section 21 diffuse to the cooling section 22 more quickly, thereby increasing the aerosol amount of the extracted aerosol, and by setting the airflow resistance at the air inlet hole 221 to be smaller than the airflow resistance at the air inlet passage 30, the aerosol substrate 20 is mainly heated in a low-oxygen state (i.e. NSCs technology), which reduces the proportion of air entering the aerosol substrate 20, and can make the heating consistency of the aerosol substrate 20 better.

[0036] In an embodiment, the airflow resistance at the air inlet hole 221 is R1, and the airflow resistance at the air inlet passage 30 is R2, wherein 1.5% < R1 / R2 < 15%, i.e. R1 is much smaller than R2, so that the aerosol production system mainly heats the aerosol substrate 20 in a low-oxygen state.

[0037] The ratio of the airflow resistance at the air inlet hole 221 to the airflow resistance at the air inlet passage 30 can be converted from the ratio of the flow rates or the ratio of the flow volumes measured by the airflow sensor. For example, an airflow sensor can be arranged in the containing cavity 11, and the flow rate or the flow volume of the airflow sensor in the containing cavity 11 is the flow rate or the flow volume of the air inlet passage 30. The total flow rate or the total flow volume of the suction can be measured, and the difference between the total flow rate and the flow rate of the air inlet passage 30 is the flow rate of the air inlet hole 221, and the difference between the total flow volume and the flow volume of the air inlet passage 30 is the flow volume of the air inlet hole 221. Then the ratio of the flow rates or the ratio of the flow volumes of the air inlet hole 221 and the air inlet passage 30 can be converted into the ratio of the airflow resistances.

[0038] In order to ensure that the aerosol production system is low-oxygen heating, the flow rate at the air inlet hole 221 is greater than the flow rate at the air inlet passage 30, the flow volume at the air inlet hole 221 is greater than the flow volume at the air inlet passage 30, and the ratio of the flow rate at the air inlet hole 221 to the flow rate at the air inlet passage 30 is inversely proportional to R1 / R2, or the ratio of the flow volume at the air inlet hole 221 to the flow volume at the air inlet passage 30 is inversely proportional to R1 / R2.

[0039] The air flow resistance at the air inlet holes 221 is controlled by the total area of the radial cross sections of the air inlet holes 221, i.e. the area of the air inlet holes 221 when sectioned along a radial direction of the air inlet holes 221. The greater the total area of the radial cross sections of the air inlet holes 221, the smaller the air flow resistance. The air flow resistance of the air inlet passage 30 is controlled by the area of the radial cross section of the air inlet passage 30, i.e. the narrowest part of the air inlet passage 30. The radial cross section of the air inlet passage 30 refers to the area of the air inlet passage 30 when sectioned along a direction perpendicular to the air flow direction in the air inlet passage 30. In an embodiment, the total area of the radial cross sections of all the air inlet holes 221 on the cooling section 22 is A mm 2 , and the minimum area of the radial cross section of the air inlet passage 30 (i.e. the area of the narrowest part of the air inlet passage 30 is taken as the minimum area of the radial cross section) is B mm 2 , where 10B>A>B. By setting the sizes and relative relationship of A and B, the air inlet ratio of the air inlet holes 221 and the air inlet passage 30 can be controlled, so that the aerosol production system can heat the aerosol substrate 20 by low-oxygen heating.

[0040] As shown in FIG. 1, Figures 4-8 In an embodiment, the shell assembly 10 includes a first support 12 and a second support 13. The aerosol production system further includes a heating pipe 40, which is installed on the first support 12 and the second support 13 and cooperates with the first support 12 and the second support 13 to form the accommodation cavity 11, i.e. the cavity wall of the accommodation cavity 11 can include the inner cavity wall of the first support 12, the inner cavity wall of the heating pipe 40, or the inner cavity wall of the second support 13. The heating pipe 40 surrounds the outer periphery of the substrate section 21 to perform circumferential heating on the substrate section 21. In other embodiments, the shell assembly 10 and the heating pipe 40 can also be in other structural cooperation modes, which are not limited to the cooperation modes mentioned in the present application.

[0041] Further, Figure 4 and Figure 6As shown, the air inlet channel 30 comprises a first channel 31, a second channel 32 and a third channel 33 in sequence, the first channel 31 is formed between the first support 12 and the aerosol substrate 20, the second channel 32 is formed between the heating pipe 40 and the aerosol substrate 20, and the third channel 33 is formed between the second support 13 and the aerosol substrate 20, so that the airflow entering the aerosol production system can enter the bottom of the substrate section 21 through the first channel 31, the second channel 32 and the third channel 33. In this embodiment, the resistance of the air inlet channel 30 can be controlled by the radial cross section of the first channel 31, or by the radial cross section of the second channel 32 or the third channel 33, preferably, the resistance of the air inlet channel 30 is controlled by the radial cross section of the first channel 31.

[0042] The resistance of the air inlet channel 30 is mainly related to the area of the radial cross section of the narrowest part of the air inlet channel 30. Therefore, the radial cross section of the first channel 31 can be smaller than the radial cross section of the second channel 32 and the radial cross section of the third channel 33, that is, the resistance of the air inlet channel 30 is controlled by the radial cross section of the first channel 31. Alternatively, the radial cross section of the second channel 32 can be smaller than the radial cross section of the first channel 31 and the radial cross section of the third channel 33, that is, the resistance of the air inlet channel 30 is controlled by the radial cross section of the second channel 32, or the radial cross section of the third channel 33 can be smaller than the radial cross section of the first channel 31 and the radial cross section of the second channel 32, that is, the resistance of the air inlet channel 30 is controlled by the radial cross section of the third channel 33. Preferably, the resistance of the air inlet channel 30 is controlled by the radial cross section of the first channel 31.

[0043] In one embodiment, as shown in Figures 4-8 The first support 12 is provided with a mounting cavity 121, one end of the mounting cavity 121 is provided with a socket 1211 for inserting and withdrawing the aerosol substrate 20 into and out of the interior of the first support 12, the second support 13 is arranged at the end of the mounting cavity 121 away from the socket 1211, the heating pipe 40 is arranged in the mounting cavity 121, and one end of the heating pipe 40 abuts the end of the first support 12 close to the socket 1211, and the other end of the heating pipe 40 abuts the second support 13, so that the heating pipe 40 can be mounted on the first support 12 and the second support 13.

[0044] Further, as shown in Figure 8As shown, the second support 13 comprises a circumferentially enclosed side wall 131 and a bottom wall 132 connected with the side wall 131, the side wall 131 is provided with a plurality of convex edges 1311 distributed in the circumferential direction, the convex edges 1311 are used to contact the side surface of the aerosol substrate 20, the bottom wall 132 is provided with a supporting portion 1321, the supporting portion 1321 is used to abut against the bottom surface of the aerosol substrate 20. Wherein, the third channel 33 comprises a first air inlet sub-channel 331 and a second air inlet sub-channel 332, when the aerosol substrate 20 is inserted into the accommodating cavity 11 and abuts against the supporting portion 1321, the part structure of the side wall 131 between the plurality of convex edges 1311 and the aerosol substrate 20 forms the first air inlet sub-channel 331, the second air inlet sub-channel 332 exists between the bottom wall 132 and the aerosol substrate 20, and the external air can flow into the bottom of the substrate section 21 in sequence through the first channel 31, the second channel 32, the first air inlet sub-channel 331 and the second air inlet sub-channel 332. By arranging the supporting portion 1321 and the convex edge 1311, when the aerosol substrate 20 is arranged in the second support 13, the side surface of the aerosol substrate 20 can form an air inlet sub-channel with the second support 13, and the bottom surface of the aerosol substrate 20 can also form an air inlet sub-channel with the second support 13, so that the airflow can enter the bottom surface of the substrate section 21.

[0045] In an embodiment, as shown in Figure 7 The first support 12 is provided with a plurality of convex blocks 122 distributed in the circumferential direction at one end close to the spout 1211, the convex blocks 122 are used to contact the side surface of the aerosol substrate 20, when the aerosol substrate 20 is inserted into the accommodating cavity 11, the first support 12 between the plurality of convex blocks 122 and the aerosol substrate 20 forms the first channel 31, by arranging the convex blocks 122, when the aerosol substrate 20 is inserted into the accommodating cavity 11, the side surface of the aerosol substrate 20 can form the first channel 31 with the first support 12, so that the airflow can enter the shell assembly 10 through the gap between the first support 12 and the aerosol substrate 20.

[0046] The above application of specific examples to illustrate the present application, is only used to help understand the present application, and does not limit the present application. For the skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformation or replacement can be made.

Claims

1. An aerosol production system, characterized in that, include: A housing assembly having a receiving cavity within it; The aerosol matrix comprises a matrix section, a cooling section, and a suction section connected in sequence. The cooling section is provided with an air inlet that communicates with the outside atmosphere. At least a portion of the matrix section is disposed within the receiving cavity for heating to generate aerosols. An air intake channel is formed between the aerosol matrix and the cavity wall of the receiving cavity, and the air intake channel communicates the outside atmosphere with the matrix section. When the suction section is suctioned, the airflow resistance at the air inlet is less than the airflow resistance at the air intake channel.

2. The aerosol production system according to claim 1, characterized in that, The airflow resistance at the air intake is R1, and the airflow resistance at the air intake channel is R2, wherein 1.5% <R1 / R2<15%。 3. The aerosol production system according to claim 1, characterized in that, The total radial cross-sectional area of ​​all the air inlets on the cooling section is A mm. 2 The minimum area of ​​the radial cross-section of the air intake channel is B mm. 2 , where 10B>A>B.

4. The aerosol production system according to claim 2, characterized in that, The flow velocity at the air inlet is greater than the flow velocity at the air intake channel, and the flow rate at the air inlet is greater than the flow rate at the air intake channel, wherein the ratio of the flow velocity at the air inlet to the flow velocity at the air intake channel is inversely proportional to R1 / R2; or, the ratio of the flow rate at the air inlet to the flow rate at the air intake channel is inversely proportional to R1 / R2.

5. The aerosol production system according to any one of claims 1-4, characterized in that, The housing assembly includes a first support and a second support. The aerosol production system also includes a heating tube, which is installed on the first support and the second support and cooperates with the first support and the second support to form the receiving cavity.

6. The aerosol production system according to claim 5, characterized in that, The air intake channel includes a first channel, a second channel, and a third channel connected in sequence. The first channel is formed between the first support and the aerosol matrix, the second channel is formed between the heating tube and the aerosol matrix, and the third channel is formed between the second support and the aerosol matrix. The airflow entering the aerosol production system enters the matrix section through the first channel, the second channel, and the third channel.

7. The aerosol production system according to claim 6, characterized in that, The radial cross-section of the first channel is smaller than the radial cross-section of the second channel and the radial cross-section of the third channel; or, the radial cross-section of the second channel is smaller than the radial cross-section of the first channel and the radial cross-section of the third channel, or, the radial cross-section of the third channel is smaller than the radial cross-section of the first channel and the radial cross-section of the second channel.

8. The aerosol production system according to claim 5, characterized in that, An installation cavity is formed inside the first bracket. One end of the installation cavity has a socket for inserting and withdrawing the aerosol matrix into the first bracket. The second bracket is disposed at the end of the installation cavity away from the socket. The heating tube is disposed inside the installation cavity, with one end of the heating tube abutting against the end of the first bracket near the socket and the other end of the heating tube abutting against the second bracket.

9. The aerosol production system according to claim 8, characterized in that, The second support includes a circumferentially enclosing sidewall and a bottom wall connected to the sidewall. The sidewall is provided with a plurality of circumferentially distributed protrusions for contacting the side surface of the aerosol matrix. The bottom wall is provided with a support portion for abutting against the bottom surface of the aerosol matrix. When the aerosol matrix is ​​inserted into the receiving cavity and abuts against the support portion, a first air inlet sub-channel exists between the part of the sidewall located between the protrusions and the aerosol matrix, and a second air inlet sub-channel exists between the bottom wall and the aerosol matrix. Outside air can flow into the aerosol matrix through the first air inlet sub-channel and the second air inlet sub-channel.

10. The aerosol production system according to claim 8, characterized in that, The first support has a plurality of protrusions distributed circumferentially at one end near the insertion port. The protrusions are used to contact the side surface of the aerosol matrix. When the aerosol matrix is ​​inserted into the receiving cavity, a first channel exists between the first support and the aerosol matrix between the plurality of protrusions.

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