WO2024051262A1

WO2024051262A1 - Aerosol generating system and aerosol generating device

Info

Publication number: WO2024051262A1
Application number: PCT/CN2023/101048
Authority: WO
Inventors: 郑松杰
Original assignee: 深圳麦时科技有限公司
Priority date: 2022-09-08
Filing date: 2023-06-19
Publication date: 2024-03-14
Also published as: CN218551290U

Abstract

An aerosol generating system and an aerosol generating device (100). The aerosol generating device (100) comprises a heating body (31), a gas flow channel (70) and a gas storage chamber (4120); the heating body (31) has a heating chamber (310) and is used for generating heat so as to heat an aerosol-forming substrate (200) accommodated in the heating chamber (310), a gap being left between the heating body (31) and the aerosol-forming substrate (200); the gas storage chamber (4120) is arranged at one end of the aerosol-forming substrate (200), is communicated with the aerosol-forming substrate (200), and is used for storing a gas; the gas flow channel (70) is at least partially formed in the gap between the heating body (31) and the aerosol-forming substrate (200), and is communicated with the gas storage chamber (4120).

Description

Aerosol generation system and aerosol generation device

Technical field

The present invention relates to a heat-not-burn device, and more specifically, to an aerosol generating system and an aerosol generating device.

Background technique

At present, most aerosol generating devices (that is, heat-not-burn appliances) generally use chip heating elements, needle heating elements, or peripheral heating elements. Among them, an aerosol generating device using a peripheral heating element is used. During the process of sucking the aerosol generating device, the airflow enters from the matrix section of the aerosol-forming matrix. The airflow is mixed with the preheated aerosol-forming matrix and passes through the aerosol-generating device. The hollow section, condensation section and filter section enter the human oral cavity and nasal cavity. During the suction process, external air dynamically passes through the matrix section, causing the temperature of the matrix section to change drastically. The aerosol-forming matrix cleavage reaction is unstable, and the generated material components are different, which in turn affects the taste of suction. At the same time, due to the formation of aerosol-matrix The bottom is not sealed, and the residue after suction will pollute the appliance or heating equipment, causing cleaning difficulties, odors and other problems.

Contents of the invention

The technical problem to be solved by the present invention is to provide an improved aerosol generating system and aerosol generating device.

The technical solution adopted by the present invention to solve the technical problem is to construct an aerosol generating device, which includes a heating element, an air flow channel and an air storage cavity. The heating element forms a heating cavity and is used to generate heat to heat the air contained in the The aerosol-forming base of the heating chamber has a gap left between the heating element and the aerosol-forming base; the gas storage cavity is disposed at one end of the aerosol-forming base and is conductive to the aerosol-forming base. The gas flow channel is at least partially formed in the gap between the heating element and the aerosol-forming base body and communicates with the gas storage cavity.

In some embodiments, the heating element is columnar, and at least part of the airflow channel extends to the air storage cavity along the axial direction of the heating element.

In some embodiments, the cross-sectional size of the heating element is larger than the cross-sectional size of the aerosol-forming substrate.

In some embodiments, the cross-section of the heating element includes a long side; and the air flow channel is formed at both ends of the long side.

In some embodiments, the aerosol-forming matrix is cylindrical,

The heating element includes a short side, and the size of the short side is less than or equal to the diameter of the aerosol-forming substrate.

In some embodiments, a support structure supporting the heating element is also included;

The support structure includes a first support supporting the heating element;

The air storage cavity is formed in the first support.

In some embodiments, the first support includes a receiving cavity that receives a portion of the aerosol-forming substrate;

The gas storage cavity is formed in the accommodation cavity and located at one end of the aerosol-forming base body.

In some embodiments, the aerosol-forming matrix is cylindrical,

The cross-section of the heating element is elliptical, and the long axis of the heating element is larger than the diameter of the aerosol-forming matrix;

And/or the cross-section of the accommodating cavity is elliptical, and the long axis of the accommodating cavity is larger than the diameter of the aerosol-forming substrate.

In some embodiments, the first support includes at least two support bosses, and at least two of the support bosses are spaced apart in the accommodation cavity for supporting the aerosol-forming base body.

In some embodiments, the first support includes a barrel with a plug-in port; the accommodation cavity is formed in the barrel;

The barrel includes a bottom wall opposite to the plug-in opening and a side wall provided on the bottom wall;

The support boss is provided on the bottom wall and/or on the side wall.

In some embodiments, the gas storage cavity is formed at the central axis of the barrel;

At least two of the support bosses are arranged at intervals along the circumference of the air storage cavity; the interval between the two adjacent support bosses forms an air guide connected to the air flow channel and the air storage cavity. groove.

In some embodiments, the first support includes a plug-in port, and the plug-in port is connected to the accommodation cavity;

A support platform is provided on the first support. The support platform is provided at one end of the accommodation cavity and close to the plug-in opening for supporting the heating element.

In some embodiments, the support structure further includes a second support disposed on the first support and sleeved around the periphery of the heating element.

In some embodiments, the first support and the second support are snap-fitted.

In some embodiments, the second support is a two-end through structure, the first support is located at one end of the second support, and the second support is disposed away from one end of the first support. There is a fixed cover, which is sleeved on one end of the aerosol-forming base body;

The air flow channel is at least partially formed between the fixed cover and the aerosol-forming base.

In some embodiments, the inner wall surface of the fixed cover is provided with an air inlet groove communicating with the outside.

In some embodiments, the fixed cover has an oval cross-section.

In some embodiments, the volume of the gas storage cavity is greater than one-tenth the volume of the matrix segment of the aerosol-forming matrix.

In some embodiments, the volume of the gas storage cavity is one-third to one-half of the volume of the matrix segment of the aerosol-forming matrix.

In some embodiments, an induction coil cooperated with the heating element is further included, and the heating element generates heat in the changing magnetic field generated by the induction coil.

The present invention also constructs an aerosol generating system, including an aerosol forming substrate and the aerosol generating device of the present invention;

The aerosol-forming base portion is inserted into the aerosol-generating device.

In some embodiments, the aerosol-forming base body includes a hollow section, and the wall surface of the hollow section is provided with air flow holes communicating with the outside.

Implementing the aerosol generation system and aerosol generation device of the present invention has the following beneficial effects: the aerosol generation device forms at least part of the airflow channel between the heating element and the aerosol-forming substrate, and is located on the aerosol-forming substrate. One end is formed in a gas storage cavity connected to the aerosol-forming substrate and the air flow channel, thereby allowing external gas to flow into the aerosol-forming substrate through the air flow channel and the gas storage cavity, thereby forming a low-oxygen heating environment for the aerosol-forming substrate. It is beneficial to improve aerosol quality, increase aerosol volume, and improve taste.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples. In the accompanying drawings:

Figure 1 is a schematic structural diagram of an aerosol generation system according to the first embodiment of the present invention;

Figure 2 is a longitudinal cross-sectional view of the aerosol generation system shown in Figure 1;

Figure 3 is another longitudinal cross-sectional view of the aerosol generating system shown in Figure 1;

Figure 4 is a cross-sectional view of the aerosol generating system shown in Figure 1;

Figure 5 is another cross-sectional view of the aerosol generating system shown in Figure 1;

Figure 6 is a schematic structural diagram of the heating element of the aerosol generation device in the aerosol generation system shown in Figure 2;

Figure 7 is a partial structural cross-sectional view of the aerosol generation device in the aerosol generation system shown in Figure 2;

Figure 8 is a partial structural schematic diagram of the aerosol generation device in the aerosol generation system shown in Figure 2;

Figure 9 is a schematic structural diagram of the first support of the aerosol generation device in the aerosol generation system shown in Figure 8;

Figure 10 is a schematic structural diagram of a fixed cover of the aerosol generation device in the aerosol generation system shown in Figure 8;

Figure 11 is a schematic diagram of the air flow direction of the aerosol generation system shown in Figure 2;

Figure 12 is a schematic diagram of the aerosol-forming matrix structure of the aerosol-generating system shown in Figure 1;

Figure 13 is a longitudinal cross-sectional view of the aerosol-forming substrate shown in Figure 13;

Figure 14 is a longitudinal sectional view of the aerosol generation system according to the second embodiment of the present invention;

FIG. 15 is a schematic structural diagram of the first support of the aerosol generating device in the aerosol generating system shown in FIG. 14 .

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Figure 1 shows a first embodiment of the aerosol-forming system of the present invention. The aerosol forming system includes the aerosol generating device 100 and an aerosol forming base 200 . The aerosol generating device 100 can heat the aerosol-forming substrate 200 using a low-temperature heating and non-burning method. In some embodiments, the aerosol-forming substrate 200 may be cylindrical. Specifically, the aerosol-forming substrate 200 may be a solid material in the form of filaments or sheets made from leaves and/or stems of plants, and may be A fragrance component is further added to this solid material. In some embodiments, the aerosol-forming substrate 200 can be inserted into the aerosol-generating device 100. The aerosol-generating device 100 has the advantages of simple structure, good aerosol volume, strong use comfort, and high user experience. .

As shown in FIGS. 1 to 3 , in this embodiment, the aerosol generating device 100 includes a housing 10 , a receiving component 20 , a heating component 30 and a supporting structure 40 . The housing 10 is set around the periphery of the receiving component 20 to protect and make the entire aerosol generating device 100 more beautiful. The receiving component 20 is used to store the heating component 30 and the supporting structure 40 . The heating component 30 is disposed in the receiving component 20 and is used to heat the aerosol-forming base 200 to generate aerosol for the user to inhale. The support structure 40 is provided in the receiving component 20 and is used to support the heating component 30 and the aerosol forming base 200 .

In this embodiment, the housing 10 includes a first housing 11 and a second housing 12 . The first housing 11 and the second housing 12 have similar shapes and sizes. The first shell 11 is sleeved on one side of the receiving component 20 , and the second shell 12 is sleeved on the other side of the receiving component 20 . The first shell 11 and the second shell 12 can be arranged oppositely.

In this embodiment, the receiving component 20 includes a bracket 21 and a top cover 22 . The bracket 21 is disposed in the housing 10 and is used to support the support structure 40, power supply components, circuit boards and other components. The bracket 21 includes a first frame body 211 and a second frame body 212 that is combined with the first frame body 211. The first frame body 211 and the second frame body 212 are snapped together. A first cavity 21a and a second cavity 21b are formed between the first frame 211 and the second frame 212. The first cavity 21a and the second cavity 21b can be arranged side by side, wherein the first cavity 21a and the second cavity 21b can be arranged side by side. 21a may be used to house support structure 40. The second cavity 21b can be used to accommodate power supply components. The top cover 22 is disposed at one end of the bracket 21 . Specifically, the top cover 22 is disposed close to the first cavity 21 a and is engaged with the first housing 11 and the second housing 12 . The top cover 22 is provided with an assembly opening 221 for inserting the aerosol forming base 200 .

As shown in FIG. 4 and FIG. 6 , in this embodiment, the heating component 30 includes a heating element 31 and an induction coil 32 . The heating element 31 is arranged in the support structure 40 and is column-shaped, and is a hollow structure with both ends penetrating or a hollow structure with one end open and the other end closed. The heating element 31 can be placed on the outer periphery of the aerosol-forming base 200 and can be located in the base section 201 of the aerosol-forming base 200, and can be heated from the circumference of the aerosol-forming base 200. The induction coil 32 is set on the periphery of the support structure 40 and is located at a position corresponding to the support structure 40 and the heating element 31. It can cooperate with the heating element 31 to form electromagnetic heating in the energized state. Specifically, the induction coil 32 produces changes. The heating element 31 generates heat in the changing magnetic field, thereby heating the aerosol-forming substrate 200 . It can be understood that in some other embodiments, the induction coil 32 can be omitted, and the heating component 30 is not limited to using electromagnetic heating to heat the aerosol-forming substrate 200. In some other embodiments, the heating component 30 can also be used. The aerosol-forming substrate 200 may be heated by resistive heating.

Specifically, in this embodiment, the cross-sectional size of the heating element 31 can be larger than the cross-sectional size of the aerosol-forming base 200. When the heating element 31 is sleeved on the outer periphery of the aerosol-forming base 200, the heating element 31 A gap is left between the aerosol-forming substrate 200 and the aerosol-forming substrate 200 . The cross section of the heating element 31 may be oval. Of course, it is understandable that in other embodiments, the cross-section of the heating element 31 is not limited to an elliptical shape, and may be a rectangular square or other shapes. In this embodiment, the cross-section of the heating element 31 may include a major axis and a minor axis (that is, include a long side and a short side). The major axis of the heating element 31 may be larger than the diameter of the aerosol-forming base 200 . The minor axis of body 31 may be comparable to the diameter of aerosol-forming substrate 200. Of course, it is understandable that in other embodiments, the minor axis of the heating element 31 may be slightly smaller than the diameter of the aerosol-forming base 200 . When the heating element 31 is placed on the aerosol-forming base 200, a gap is left between both ends of the long axis of the heating element 31 and the aerosol-forming base 200. The side walls 4112 at both ends of the short axis of the heating element 31 can clamp the aerosol-forming substrate 200, thereby fixing the aerosol-forming substrate 200, improving heat conduction efficiency, and improving the baking effect of the aerosol-forming substrate 200.

In this embodiment, the heating element 31 includes a first opening 311 and a second opening 312 . The first opening 311 and the second opening 312 can be respectively located at two ends of the heating element 31 and are provided through the heating element 31 . A heating cavity 310 is formed inside the heating body 31 . The heating cavity 310 is used to generate heat to heat the aerosol-forming substrate 200 contained in the heating cavity 310 . The first opening 311 can be disposed close to the top cover 22 , and the second opening 312 is disposed opposite to the first opening 311 . When the heating element 31 is assembled with the aerosol-forming base 200 , the aerosol-forming base 200 can be inserted from the first opening 311 toward the second opening 312 .

As shown in FIGS. 5 , 7 to 10 , in this embodiment, the support structure 40 includes a first support 41 and a second support 42 . The first support 41 is installed on the stop 21c between the first cavity 21a and the second cavity 21b, and is located at one end of the second support 42 for supporting the second support 42 and the heating element. 31 and the aerosol forming matrix 200. The second support 42 is sleeved on part of the first support 41 , is coaxially arranged with the first support 41 , and is snap-fitted with the first support 41 . The second support 42 can be placed around the periphery of the heating element 31 to support the induction coil 32 .

In this embodiment, the first support 41 includes a cylinder 411; the cylinder 411 has a plug-in opening 415 and is a hollow structure. The cylinder 411 may include a bottom wall 4111 and a side wall 4112 disposed on the bottom wall 4111 and extending along the circumferential direction of the bottom wall 4111. The bottom wall 4111 and the side wall 4112 form an accommodating cavity 412, that is, the accommodating cavity 412 is formed in the barrel 411. The accommodating cavity 412 is used to accommodate part of the aerosol-forming base 200. The plug-in opening 415 is connected with the accommodating cavity 412 and is used for inserting the aerosol-forming substrate 200 into the accommodating cavity 412 . In this embodiment, the cross section of the accommodating cavity 412 may be elliptical, and the long axis of the accommodating cavity 412 is larger than the diameter of the aerosol forming base 200 , that is, the side surfaces of both ends of the long axis of the accommodating cavity 412 A gap is formed between the wall 4112 and the outer wall of the aerosol-forming base 200 . The size of the minor axis of the accommodation cavity 412 may be slightly smaller than or equal to the diameter of the aerosol-forming base 200 . It can be understood that in other embodiments, the cross-section of the accommodation cavity 412 is not limited to an oval shape, but may also be circular, rectangular, square or other shapes.

The aerosol forming device also includes an air storage chamber 4120. The gas storage cavity 4120 is formed in the accommodating cavity 412 and is located at the central axis of the cylinder 411 and at one end of the aerosol-forming base 200. It can be electrically connected to the aerosol-forming base 200. In some embodiments, the volume of the gas storage chamber 4120 is greater than one-tenth of the volume of the matrix section 201 of the aerosol-forming matrix 200 . Specifically, in some embodiments, the volume of the gas storage chamber 4120 may be one-third to one-half the volume of the matrix segment 201 of the aerosol-forming substrate 200. Alternatively, the volume of the gas storage chamber 4120 may be The volume of the matrix section 201 of the aerosol-forming matrix 200 is two-fifths. The gas storage cavity 4120 is used to store gas, which is conducive to forming a low-oxygen heating environment, which is conducive to improving aerosol quality, increasing aerosol volume, and improving aerosol taste. The gas in the gas storage chamber 4120 can be preheated by the heating element 31 and then enter the aerosol forming base 200 from the end of the aerosol forming base 200 . By preheating the gas in the gas storage chamber 4120, the temperature of the gas in the gas storage chamber 4120 can be made higher than the temperature of the outside air. When the user inhales, the preheated gas flows into the aerosol-forming matrix 200. , the taste is better than if the outside air directly enters the aerosol forming matrix 200 without being preheated.

In this embodiment, the first support 41 further includes two support bosses 413. The two support bosses 413 are spaced apart in the accommodating cavity 412 and spaced along the circumference of the air storage cavity 4120. Used to support the aerosol forming substrate 200. In this embodiment, the two support bosses 413 are disposed at both ends of the short axis of the cross section of the accommodation cavity 412 , and the extension length of each support boss 413 in the short axis direction of the first support 41 is less than half. The size of one end shaft. The height of the support boss 413 may be smaller than the depth of the accommodating cavity 412 . The support boss 413 can be disposed on the bottom wall 4111 and the side wall 4112 and protrudes toward the accommodating cavity 412 . The air storage cavity 4120 may be formed in the middle of the two support bosses 413 . The gap between the two supporting bosses 413 can form an air guide groove 416 for guiding air flow into the air storage cavity 4120. It can be understood that in other embodiments, the number of supporting bosses 413 may not be limited to two, but may be more than two. In some other embodiments, when the cross-section of the accommodating cavity 412 is circular, the extension length of each supporting boss 413 in the radial direction of the accommodating cavity 412 is smaller than the radius of the accommodating cavity 412 .

In this embodiment, the first support 41 further includes a buckle 417 , which is disposed close to the insertion and extraction port 415 , is disposed on the outer wall 4112 of the barrel 411 , and protrudes along the outer side of the barrel 411 . out for snap connection with the second support 42 . The first support 41 also includes a clamping platform 418. The clamping platform 418 is disposed close to the bottom wall 4111 of the cylinder 411, is located on the outer wall 4112 of the cylinder 411, and protrudes along the outer side of the cylinder 411. It is engaged with the stopper 21c of the bracket 21 .

In this embodiment, the second support 42 is a cylindrical structure with both ends extending through it, and is sleeved on one end of the first support 41 . The second support 42 is provided with a first button hole 421. The first button hole 421 is provided correspondingly with the buckle 417. When the second support 42 is assembled with the first support 41, the buckle 417 can be engaged. into the first button hole 421, and then the first support 41 and the second support 42 are locked. The second support 42 is provided with a second button hole 422 , and the second button hole 422 is used for engaging with the fixed cover 43 .

In this embodiment, the support structure 40 further includes a fixed cover 43 . The fixed cover 43 is disposed on an end of the second support 42 away from the first support 41 and coaxially with the second support 42 . Specifically, the fixed cover 43 can be partially inserted into the second support 42 to cooperate with the first support 41 to limit and fix the heating element 31 . In this embodiment, the fixed cover 43 can be placed on one end of the aerosol-forming base 200 , and a gap can be left between the fixed cover 43 and the outer wall surface of the aerosol-forming base 200 . The fixed cover 43 is a columnar structure with both ends penetrating, and a perforation coaxially arranged with the assembly port 221 and the heating element 31 is formed on the inner side for allowing part of the aerosol forming base 200 to pass through. The cross-section of the fixed cover 43 can be oval, and the long axis of the fixed cover 43 can be larger than the diameter of the aerosol-forming base 200 , that is, the walls corresponding to the two ends of the long axis of the fixed cover 43 and the outer wall of the aerosol-forming base 200 Leave a gap in between. In some embodiments, the fixed cover 43 includes an embedded part 431 and a connecting part 432. The embedded portion 431 is embedded from one end of the second support 42 to limit and fix the heating element 31 . The connecting portion 432 is provided at one end of the embedded portion 431 , and its cross-sectional size can be smaller than the cross-sectional size of the embedded portion 431 , for connecting and fixing with the guide structure 60 of the sliding cover 50 that covers the assembly opening 221 . In some embodiments, the inner wall of the fixed cover 43 is provided with an air inlet groove 433 , which is connected to the outside and is used for allowing external air to enter between the heating element 31 and the aerosol forming base 200 . There may be a plurality of air inlet grooves 433 , and the plurality of air inlet grooves 433 may be arranged at intervals along the circumferential direction of the fixed cover 43 . The air inlet grooves 433 may be strip grooves and may extend along the axial direction of the fixed cover 43 . In some embodiments, the fixed cover 43 is provided with a snap rib 434 , which is disposed on the outer wall 4112 of the embedded portion 431 for engaging with the second button hole 422 of the second support 42 .

As shown in FIG. 7 , in this embodiment, the aerosol generating device 100 further includes a sliding cover 50 and a guide structure 60 that cooperates with the sliding cover 50 . The sliding cover 50 is slidably disposed on the top cover 22 and can slide to cover the assembly opening 221 on the top cover 22 . The guide structure 60 is disposed in the top cover 22 , is connected to the sliding cover 50 , and is used to guide the sliding cover 50 . In some embodiments, the guide structure 60 includes a guide bracket 61 and a guide slider 62 . The guide bracket 61 is disposed at one end of the bracket 21 and can be detachably assembled with the bracket 21 . The guide bracket 61 is provided with a through hole 611 coaxially with the through hole of the fixed cover 43 and the assembly opening 221 of the top cover 22 . In this embodiment, the guide bracket 61 is provided with a guide rail 612 for the guide slider 62 to slide. The guide slider 62 is connected to the slide cover 50 and can be slidably disposed on the guide bracket 61 and slidably disposed along the guide rail 612, with a gap left between the guide bracket 61 and the guide bracket 61, and the gap is connected to the outside.

As shown in FIG. 11 , in this embodiment, the aerosol generating device 100 further includes an airflow channel 70 . The air flow channel 70 can be partially formed between the heating body 31 and the aerosol forming base 200 and extend along the axial direction of the heating body 31 to the gas storage cavity 4120, and communicate with the gas storage cavity 4120, for allowing external gas to enter the gas storage cavity. 4120 and stored in the gas storage chamber 4120. Of course, it is understandable that in other embodiments, the air flow channel 70 can also be integrally formed between the heating element 31 and the aerosol forming base 200 . Specifically, in this embodiment, the air flow channel 70 includes a first air inlet channel 71 and a second air inlet channel 72 , wherein the first air inlet channel 71 is formed in the gap between the guide bracket 61 and the guide slider 62 in and connected to the outside. The second air inlet channel 72 is connected with the first air inlet channel 71 and is formed in the gap between the fixed cover 43 and the aerosol forming base 200 and the gap between the heating element 31 and the aerosol forming base 200. Specifically, the second air inlet channel 72 is connected with the first air inlet channel 71. There may be two second air inlet passages 72 , and the two second air inlet passages 72 may be formed at both ends of the long axis of the cross-section of the heating element 31 . The second air inlet channel 72 can extend to the air storage chamber 4120 and communicate with the air storage chamber 4120. The external air can sequentially pass through the first air inlet channel 71 and enter the second air inlet channel 72 and then enter the air storage chamber 4120, be stored in the air storage chamber 4120, and can be preheated by the heating element 31, and then sent to the aerosol to form a matrix. 200 in.

As shown in FIGS. 12 and 13 , the aerosol-forming substrate 200 is partially inserted into the aerosol generating device 100 , and is heated by the aerosol generating device 100 to generate aerosol. In this embodiment, the aerosol-forming substrate 200 is cylindrical as a whole and includes a substrate section 201, a hollow section 202, and a filter section 203 arranged in sequence. The matrix segment 201 can be inserted into the aerosol forming device. Specifically, the matrix segment 201 can be partially inserted into the accommodating cavity 412 of the first support 41 . The heating element 31 can be sleeved on at least part of the periphery of the substrate section 201 . The hollow section 202 is partially exposed from the aerosol generating device 100. The wall surface of the hollow section 202 is provided with air flow holes 2021, and the air flow holes 2021 can be connected to the outside. In this embodiment, there may be a plurality of air flow holes 2021 , and the plurality of air flow holes 2021 may be arranged along the circumferential direction of the hollow section 202 , and the air flow holes 2021 are only used for external airflow in the diameter of the hollow section 202 . It circulates in the direction and can assist in forming an oxygen-free heating environment for the heating substrate section 201 during the suction process.

Figures 14 to 15 show a second embodiment of the aerosol generating system of the present invention, which differs from the first embodiment. The accommodating cavity 412 of the first support 41 may have a substantially circular cross-section, and its radial dimension may be slightly larger than the radial dimension of the aerosol-forming base 200 . The number of support bosses 413 in the first support 41 is not limited to two, but may be six. The six support bosses 413 may be arranged in a plum blossom shape to form a plurality of air guide grooves 416 . The support boss 413 may include a first support boss 413 and a second support boss 413 . There may be two first support bosses 413 , and the two first support bosses 413 may be symmetrically and spaced apart along the radial direction of the accommodation cavity 412 . There are four second support bosses 413 , and they are distributed on two opposite sides of the two first support bosses 413 . The first support boss 413 can be connected with the side wall 4112 of the barrel 411 , and a gap is left between the second support boss 413 and the side wall 4112 of the barrel 411 . In this embodiment, the first support 41 further includes a support base 419, which is used to support the cylinder 411. The clamping platform 418 is disposed on the supporting base 419 to engage with the stopper 21c.

It can be understood that the above embodiments only express the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention; it should be noted that for those of ordinary skill in the art, In other words, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the present invention; therefore, anything falling within the scope of the claims of the present invention All equivalent transformations and modifications shall fall within the scope of the claims of the present invention.

Claims

An aerosol generating device, characterized in that it includes a heating body (31), an airflow channel (70) and an air storage cavity (4120). The heating body (31) forms a heating cavity (310) and is used to generate heat. Heating the aerosol-forming substrate (200) contained in the heating chamber (310), leaving a gap between the heating element (31) and the aerosol-forming substrate (200); the gas storage cavity (4120) ) is provided at one end of the aerosol-forming base (200) and is electrically connected to the aerosol-forming base (200); the airflow channel (70) is at least partially formed between the heating element (31) and the The aerosol forms a gap between the substrates (200) and communicates with the air storage chamber (4120).
The aerosol generating device according to claim 1, characterized in that the heating element (31) is columnar, and at least part of the airflow channel (70) extends along the axial direction of the heating element (31) to the Air storage chamber (4120).
The aerosol generating device according to claim 1, characterized in that the cross-sectional size of the heating element (31) is larger than the cross-sectional size of the aerosol-forming base (200).
The aerosol generating device according to claim 1, characterized in that the cross section of the heating element (31) includes a long side; and the air flow channel (70) is formed at both ends of the long side.
The aerosol generating device according to claim 1, characterized in that the aerosol forming base (200) is cylindrical,

The heating element (31) includes a short side, and the size of the short side is less than or equal to the diameter of the aerosol-forming substrate (200).
The aerosol generating device according to claim 1, further comprising a support structure (40) supporting the heating element (31);

The support structure (40) includes a first support (41) that supports the heating element (31);

The air storage cavity (4120) is formed in the first support (41).
The aerosol generating device according to claim 6, characterized in that the first support (41) includes an accommodation cavity (412) that accommodates part of the aerosol-forming base (200);

The gas storage cavity (4120) is formed in the accommodation cavity (412) and located at one end of the aerosol-forming base (200).
The aerosol generating device according to claim 7, characterized in that the aerosol forming base (200) is cylindrical,

The cross-section of the heating element (31) is elliptical, and the long axis of the heating element (31) is larger than the diameter of the aerosol-forming matrix (200);

And/or the accommodating cavity (412) has an elliptical cross-section, and the long axis of the accommodating cavity (412) is larger than the diameter of the aerosol-forming substrate (200).
The aerosol generating device according to claim 7, characterized in that the first support (41) includes at least two support bosses (413), and the at least two support bosses (413) are spaced apart from each other. The accommodating cavity (412) is used to support the aerosol forming substrate (200).
The aerosol generating device according to claim 9, characterized in that the first support (41) includes a cylinder (411) with a plug-in port (415); the accommodation cavity (412) is formed in In the cylinder (411);

The barrel (411) includes a bottom wall (4111) opposite to the plug-in/out port (415) and a side wall (4112) provided on the bottom wall (4111);

The support boss (413) is provided on the bottom wall (4111) and/or on the side wall (4112).
The aerosol generating device according to claim 10, characterized in that the air storage chamber (4120) is formed at the central axis of the barrel (411);

At least two of the support bosses (413) are circumferentially spaced along the air storage cavity (4120); the spacing between the two adjacent support bosses (413) forms a gap with the airflow channel (4120). 70) The air guide groove (416) connected with the air storage chamber (4120).
The aerosol generating device according to claim 9, characterized in that the first support (41) includes an insertion and extraction port (415), and the insertion and extraction port (415) and the accommodation cavity (412) connected;

A support platform is provided on the first support (41). The support platform is provided at one end of the accommodation cavity (412) and close to the plug-in/out port (415) for supporting the heating element. (31).
The aerosol generating device according to claim 6, characterized in that the support structure (40) further includes a heating element arranged on the first support (41) and sleeved on the outer periphery of the heating element (31). Second support (42).
The aerosol generating device according to claim 13, characterized in that the first support (41) and the second support (42) are snap-connected.
The aerosol generating device according to claim 13, characterized in that the second support (42) is a two-end through structure, and the first support (41) is located on the second support (42). One end of the second support (42) away from the first support (41) is provided with a fixed cover (43), and the fixed cover (43) is sleeved on the aerosol forming base (200) ) one end;

The airflow channel (70) is at least partially formed between the fixed cover (43) and the aerosol-forming base (200).
The aerosol generating device according to claim 15, characterized in that the inner wall surface of the fixed cover (43) is provided with an air inlet groove (433) connected to the outside.
The aerosol generating device according to claim 15, characterized in that the cross section of the fixed cover (43) is oval.
The aerosol generating device according to claim 1, characterized in that the volume of the gas storage chamber (4120) is greater than one-tenth of the volume of the matrix section (201) of the aerosol-forming matrix (200).
The aerosol generating device according to claim 1, characterized in that the volume of the gas storage chamber (4120) is one-third to two-thirds of the volume of the matrix section (201) of the aerosol-forming matrix (200). one part.
The aerosol generating device according to claim 1, further comprising an induction coil (32) cooperating with the heating element (31), and the heating element (31) generates electricity when the induction coil (32) Heat is generated in the changing magnetic field.
An aerosol generating system, characterized by comprising an aerosol forming substrate (200) and the aerosol generating device (100) according to any one of claims 1 to 20;

The aerosol-forming substrate (200) is partially inserted into the aerosol-generating device (100).
The aerosol generating system according to claim 21, characterized in that the aerosol forming base (200) includes a hollow section (202), and the wall surface of the hollow section (202) is provided with air flow holes communicating with the outside. (2021).