Aerosol-generating device

Abstract

The utility model relates to the technical field of aerosol generating devices, and discloses an aerosol generating device. The aerosol generating device comprises an extractor. The extractor comprises a side wall, a first containing cavity formed in the inner side of the side wall, an opening formed in the upper end of the side wall and a bottom support connected with the lower end of the side wall. The side wall comprises a first part and a second part which are arranged in the circumferential direction, and the diameter of an inscribed circle of the first part is smaller than that of an inscribed circle of the second part; a groove is formed between the first part and the bottom support, the lower end of the first part defines at least part of the top boundary of the groove, and at least part of the lower end of the first part forms a stop part. According to the extractor, the groove structure is arranged between the first part and the bottom support, so that the stopping part for fixing the aerosol generating product can be formed at the lower end of the first part, the wall thickness of the first part can be greatly reduced, the overall size of the extractor is reduced, and the overall size of the aerosol generating device is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of aerosol generating devices, and in particular, to an aerosol generating device. Background Art

[0002] The aerosol generating device is used to heat the aerosol generating product to generate aerosol for the user to inhale. The aerosol generating device includes an extractor for inserting the aerosol generating product. In order to stably clamp the aerosol generating product, convex ribs are usually provided on the inner wall surface of the extractor to abut against the surface of the aerosol generating product. However, such a structure will increase the space occupied by the extractor, thereby increasing the overall size of the aerosol generating device. Utility Model Content

[0003] The main technical problem solved by the embodiments of the present application is to provide an aerosol generating device that can reduce the size of the extractor, thereby helping to reduce the overall size of the aerosol generating device.

[0004] In order to solve the above technical problems, a technical solution adopted in the embodiment of the present application is: to provide an aerosol generating device, including an extractor. The extractor includes a side wall, a first cavity formed on the inner side of the side wall, an opening formed at the upper end of the side wall, and a bottom bracket connected to the lower end of the side wall, the opening is used for the aerosol generating product to be inserted into the first cavity, and the bottom bracket is used to support the bottom of the aerosol generating product; the side wall includes a first part and a second part arranged along the circumference of the first cavity, and a groove arranged between the first part and the bottom bracket, the spacing between the first part and the central axis of the first cavity is smaller than the spacing between the second part and the central axis of the first cavity; the lower end of the first part defines at least a part of the boundary of the top of the groove, and at least a part of the lower end of the first part forms a stopper, and the stopper is configured to interfere with the aerosol generating product in the radial direction when the aerosol generating product is received in the first cavity, so as to prevent the aerosol generating product from leaving the first cavity.

[0005] In some embodiments, the inner wall surface of the first part includes a convex curved surface, which is respectively connected to the second part on both sides in the circumferential direction; or the inner wall surface of the first part includes a plane, which is respectively connected to the second part on both sides in the circumferential direction; or the inner wall surface of the first part includes a concave curved surface, which is respectively connected to the second part on both sides in the circumferential direction.

[0006] In some embodiments, the first cavity extends axially, and the inner wall surface of the first portion includes a guide slope extending obliquely in the axial direction, and the distance between the guide slope and the central axis of the first cavity gradually decreases along the direction of the opening toward the base.

[0007] In some embodiments, the wall thickness of the first portion is greater than the wall thickness of the second portion; or, the wall thickness of the first portion is the same as the wall thickness of the second portion.

[0008] In some embodiments, the width K1 of the first portion satisfies: 1 mm ≤ K1 ≤ 8 mm; and / or the width of the first portion is less than or equal to the width of the groove.

[0009] In some embodiments, a lower end of the second portion is connected to the base, and the second portion defines a portion of a side boundary of the groove.

[0010] In some embodiments, the groove comprises a through groove penetrating the side wall, and / or the groove comprises a blind groove formed by being recessed outward from the inner wall surface of the side wall.

[0011] In some embodiments, the first cavity extends in the axial direction; wherein the axial length L1 of the groove satisfies: 5mm≤L1≤18mm; and / or the axial length of the groove is greater than or equal to 1 / 2 of the axial length of the side wall.

[0012] In some embodiments, a difference R between a distance between the second portion and the central axis of the first cavity and a distance between the first portion and the central axis of the first cavity satisfies: 1 mm ≤ R ≤ 3 mm.

[0013] In some embodiments, the base defines a portion of the groove.

[0014] In some embodiments, there are multiple first parts and multiple grooves, and the multiple first parts are arranged in a one-to-one correspondence with the multiple grooves, so that there are multiple stoppers, and a second part is arranged between two adjacent first parts.

[0015] The aerosol generating device of the embodiment of the present application includes an extractor, which includes a side wall, a first cavity formed on the inner side of the side wall, an opening formed at the upper end of the side wall and a base connected to the lower end of the side wall, the opening is used for the aerosol generating product to be inserted into the first cavity, and the base is used to support the bottom of the aerosol generating product; the side wall includes a first part and a second part arranged along the circumference of the first cavity, and a groove arranged between the first part and the base, the spacing between the first part and the central axis of the first cavity is smaller than the spacing between the second part and the central axis of the first cavity; the lower end of the first part defines at least a portion of the boundary of the top of the groove, and at least a portion of the lower end of the first part forms a stopper, the first part is configured to interfere with the aerosol generating product in the radial direction when the aerosol generating product is received in the first cavity, so as to squeeze the aerosol generating product to form a step on the surface of the aerosol generating product, and the stopper interferes with the step in the axial direction to prevent the aerosol generating product from leaving the first cavity. If the extractor needs to clamp the aerosol generating product more reliably, the interference depth of the extractor on the aerosol generating product when clamping the aerosol generating product needs to reach a preset value. Under the premise that the cross-sectional area of ​​the aerosol generating product remains unchanged, a groove structure is provided between the first part and the base, and the groove and the first part cooperate with each other so that the stopper stops the aerosol generating product to prevent the aerosol generating product from detaching. In this way, the preset value of the interference depth required for reliable clamping can be achieved, and the structural stability of the lifter can be maintained. The degree and size of the arch of the inner wall surface of the first part toward the central axis of the first accommodating cavity can be greatly reduced, so that the first accommodating cavity defined by the first part and the second part can have a smaller cross-sectional area, thereby reducing the outer dimensions of the lifter, thereby reducing the space required for the extractor, and reducing the overall size of the aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application, the following is a brief introduction to the drawings required for describing the specific embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 is an exploded view of an aerosol generating device according to an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of an extractor of an aerosol generating device according to an embodiment of the present application;

[0019] Figure 3 The extractor of the aerosol generating device of the embodiment of the present application is along Figure 2 Sectional view of AA in the middle;

[0020] Figure 4The extractor of the aerosol generating device of the embodiment of the present application is along Figure 2 Cross-sectional view of the middle BB;

[0021] Figure 5 The extractor of the aerosol generating device of another embodiment of the present application is Figure 2 Cross-sectional view of the middle BB;

[0022] Figure 6 The extractor of the aerosol generating device of another embodiment of the present application is along Figure 2 Cross-sectional view of the middle BB;

[0023] Figure 7 When an aerosol generating product is inserted into the extractor of the aerosol generating device of the embodiment of the present application, Figure 2 Cross-sectional view of CC;

[0024] Figure 8 The extractor of the aerosol generating device of another embodiment of the present application is Figure 2 Cross-sectional view of CC;

[0025] Fig. 9 It is a schematic diagram of an extractor of an aerosol generating device according to another embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0028] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0029] See also Figure 1 The embodiment of the present application provides an aerosol generating device 100, which is used to heat an aerosol generating product to generate an aerosol. The aerosol generating device 100 includes an extractor 10. Please refer to Figure 2 and Figure 3 The extractor 10 includes a side wall 11, an opening 12 and a bottom bracket 13. The opening 12 is disposed at the upper end of the side wall 11, and the bottom bracket 13 is connected to the lower end of the side wall 11. The bottom bracket 13 and the opening 12 are disposed opposite to each other in the axial direction of the side wall 11. A first cavity 111 is formed inside the side wall 11. Figure 7 The opening 12 is used for inserting the aerosol generating product 200 into the first cavity 111 , and the bottom support 13 is used for supporting the bottom of the aerosol generating product 200 .

[0030] See also Figure 3 The side wall 11 includes a first portion 112 and a second portion 113, which are arranged in the circumferential direction. The inner wall surface of the first portion 112 and the inner wall surface of the second portion 113 both define a portion of the boundary of the first cavity 111 in the circumferential direction, and the bottom bracket 13 defines at least a portion of the boundary of the bottom of the first cavity 111. Along the axial direction of the side wall 11, a groove 114 is provided between the first portion 112 and the bottom bracket 13, and the lower end of the first portion 112 defines at least a portion of the top boundary 114a of the groove 114. When projected along the axial direction of the side wall 11, as shown in FIG. Figure 4 As shown, the distance between the first portion 112 and the central axis M of the first cavity 111 is smaller than the distance between the second portion 113 and the central axis M of the first cavity 111. The first portion 112 is closer to the central axis M of the first cavity 111 than the second portion 113.

[0031] As an example, see Figure 4 , the difference R between the distance between the second portion 113 and the central axis M of the first cavity 111 and the distance between the first portion 112 and the central axis M of the first cavity 111 satisfies: 1mm≤R≤3mm. This distance can ensure that the aerosol generating product is stably connected to the extractor 10, and can effectively prevent the aerosol generating product from being pulled out of the first cavity 111 of the extractor 10 when the user holds the aerosol generating product in his mouth and inhales it.

[0032] The distance between the first portion 112 and the central axis M of the first cavity 111 is the minimum distance between the first portion 112 and the central axis M of the first cavity 111 .

[0033] Along the circumference of the first cavity 111, the spacing between the first portion 112 and the central axis M of the first cavity 111 may be variable, for example, the spacing between the two opposite sides of the first portion 112 in the circumferential direction and the central axis M of the first cavity 111 is greater than the spacing between the middle position of the first portion 112 in the circumferential direction and the central axis M of the first cavity 111. For example, starting from the middle position of the first portion 112 in the circumferential direction to one side of the first portion 112 in the circumferential direction that is adjacent to the second portion 113, the spacing between the first portion 112 and the central axis M of the first cavity 111 gradually increases.

[0034] Along the circumference of the first cavity 111 , the distance between the second portion 113 and the center axis M of the first cavity 111 may be kept substantially constant.

[0035] As an example, see Figure 4 , there are multiple first parts 112 and multiple second parts 113, and the multiple first parts 112 and multiple second parts 113 are arranged alternately along the circumferential direction, and the diameter D11 of the inscribed circle tangent to the multiple first parts 112 is smaller than the diameter D21 of the circumference of the multiple second parts 113, or smaller than the diameter D21 of the inscribed circle tangent to the multiple second parts 113. Wherein, D21-D11=2*R.

[0036] In some existing extractors, the inner wall surface of the extractor is provided with convex strips extending in the axial direction. In order to ensure that the interference depth of the convex strips on the aerosol generating product during clamping is at least 1 mm, the height of the convex strips arching from the inner wall surface of the lifter toward the central axis of the cavity is at least 1 mm. Therefore, when at least part of the aerosol generating product is inserted into the cavity, a large gap will be formed between the inner wall surface of the extractor outside the convex strips and the aerosol generating product, and the cross-sectional area of ​​the cavity will be larger. In order to make the cavity in the extractor have a larger cross-sectional area, and under the premise of ensuring that the side wall of the lifter has a sufficient thickness to maintain the stable structure of the lifter, the outer dimensions of the lifter will undoubtedly increase. When there is a large gap between the inner wall surface of the extractor and the aerosol generating product, on the one hand, the aerosol flowing back from the aerosol generating product will leak through the gap, and on the other hand, the convection with the outside will increase, so that the heat loss of the heating element increases, which is not conducive to energy saving.

[0037] In the aerosol generating device 100 provided in the present application, please refer to Figure 3 The first portion 112 is interrupted when extending axially to the groove 114, and the lower end of the first portion 112 defines at least a portion of the top boundary 114a of the groove 114, so that at least a portion of the lower end of the first portion 112 is formed with a stopper 1121. Please refer to Figure 7When the aerosol generating product 200 is inserted into the first cavity 111, the first portion 112 is configured to interfere with the aerosol generating product 200 in the radial direction, so as to squeeze and form a step on the surface of the aerosol generating product 200, and the stopper 1121 interferes and cooperates with the step in the axial direction, thereby preventing the aerosol generating product 200 from being separated from the first cavity 111. When the first portion 112 interferes and cooperates with the aerosol generating product 200 in the radial direction, the first portion 112 squeezes the aerosol generating product 200 inwardly, and the radius of the aerosol generating product 200 is thus shrunk by X mm, while the volume of the aerosol generating product 200 remains almost unchanged, so that the portion of the aerosol generating product 200 corresponding to the groove 114 will expand outward, and the closer to the stopper 1121, the more obvious the outward expansion of the aerosol generating product 200, and the width of the step formed on the surface of the aerosol generating product 200 due to squeezing is Y mm, based on the expansion, Y>X. Therefore, compared with the existing extractors, in the present application, when the height of the first part 112 arching relative to the second part 113 is less than the height of the convex strip arching from the inner wall surface of the lifter toward the central axis of the cavity, or when R is less than the height of the convex strip arching from the inner wall surface of the lifter toward the central axis of the cavity, the extractor 10 provided by the present application can still reliably hold the aerosol generating article 200. Therefore, compared with the existing extractors, the extractor 10 provided by the present application can have a smaller size and requires less space.

[0038] Preferably, when the aerosol generating product 200 is inserted into the first cavity 111 and maintained, the first part 112 and the second part 113 can both be interference fit with the aerosol generating product 200. On the one hand, the Y value can be increased, so that the extractor 10 can hold the aerosol generating product 200 more reliably. On the other hand, when the aerosol generating product 200 is inserted into the first cavity 111, the air convection between the opening 12 and the base 13 can be reduced and the aerosol can be prevented from flowing toward the opening 12 and leaking from the opening 12.

[0039] In some embodiments, see Figure 2 and Figure 3, the width K1 of the first part 112 satisfies: 1mm≤K1≤8mm. And / or, the width K1 of the first part 112 is less than or equal to the width K2 of the groove 114. Among them, the width K1 of the first part 112 refers to the linear distance between the two opposite sides of the first part 112 in the circumferential direction, and the width K2 of the groove 114 refers to the linear distance between the two oppositely arranged groove walls of the groove 114 in the circumferential direction. By setting the width K1 of the first part 112 within the above-mentioned range, the slope between the middle position of the first part 112 in the circumferential direction to one side of the first part 112 in the circumferential direction can be reduced, thereby increasing the contact area between the first part 112 and the aerosol generating article 200, which helps to keep the aerosol generating article 200 in the extractor 10 more stably. In addition, the width K1 of the first part 112 is less than or equal to the width K2 of the groove 114, so that the stopper 1121 formed at the lower end of the first part 112 can better interfere with the outer wall surface of the aerosol generating product, thereby ensuring the fixing effect of the stopper 1121 on the aerosol generating product.

[0040] In some embodiments, see Figure 4 , the diameter D11 of the inscribed circle of the first part 112 is smaller than the diameter D21 of the inscribed circle of the second part 113, and the circumscribed circle of the first part 112 coincides with the circumscribed circle of the second part 113, that is, the diameter D12 of the circumscribed circle of the first part 112 is equal to the diameter D22 of the circumscribed circle of the second part 113, so that the wall thickness of the first part 112 is greater than the wall thickness of the second part 113. Alternatively, the diameter of the inscribed circle of the first part 112 is smaller than the diameter of the inscribed circle of the second part 113, and the diameter of the circumscribed circle of the first part 112 is also smaller than the diameter of the circumscribed circle of the second part 113, so that the wall thickness of the first part 112 is the same as the wall thickness of the second part 113.

[0041] In some embodiments, see Figure 4 , the inner wall surface of the first part 112 includes a convex surface 112a, and in the circumferential direction of the first cavity 111, the two sides of the convex surface 112a are respectively connected to the second part 113. Specifically, the convex surface 112a protrudes toward the central axis of the first cavity 111, so that the inscribed circle of the first part 112 is smaller than the inscribed circle of the second part 113. When the aerosol generating product is inserted into the first cavity 111, the first part 112 abuts against the surface of the aerosol generating product, thereby having a clamping effect on the aerosol generating product.

[0042] In some embodiments, see Figure 5, the inner wall surface of the first part 112 includes a plane 112b, and in the circumferential direction of the first cavity 111, the two sides of the plane 112b are respectively connected to the second part 113. When the inner wall surface of the first part 112 is the plane 112b, the function is roughly the same as that of the inner wall surface of the first part 112 being the convex curved surface 112a, both of which are used to clamp the outer wall surface of the aerosol generating product. The difference between the two is that the area of ​​contact with the outer wall surface of the aerosol generating product is different. Figure 4 and Figure 5 It can be seen that when the difference between the diameter of the inscribed circle of the first part 112 and the diameter of the second part 113 is the same, compared with the case where the inner wall surface of the first part 112 is a convex surface 112a, the contact area with the outer wall surface of the aerosol generating product is larger when the inner wall surface of the first part 112 is a flat surface 112b, and the clamping effect is better.

[0043] In some embodiments, see Figure 6 , the inner wall surface of the first part 112 includes a concave curved surface 112c, and in the circumferential direction of the first cavity 111, the two sides of the concave curved surface 112c are respectively connected to the second part 113. When the inner wall surface of the first part 112 is a concave curved surface 112c, the function is roughly the same as when the inner wall surface of the first part 112 is a convex curved surface 112a and a flat surface 112b, and both are used to clamp the outer wall surface of the aerosol generating product. The difference between the former and the latter is that the area of ​​contact with the outer wall surface of the aerosol generating product is different. According to Figure 4 and Figure 6 It can be seen that when the difference between the diameter of the inscribed circle of the first part 112 and the diameter of the second part 113 is the same, compared with the case where the inner wall surface of the first part 112 is a convex surface 112a or a flat surface 112b, the contact area with the outer wall surface of the aerosol generating product is larger when the inner wall surface of the first part 112 is a concave surface 112c, and the clamping effect is further improved.

[0044] It is worth noting that the inner wall surface of the second portion 113 may also be at least one of a convex curved surface 112a, a flat surface 112b, and a concave curved surface 112c. In the aerosol generating device 100 of the embodiment of the present application, the shape of the inner wall surface of the second portion 113 is not limited, and it is only necessary that the diameter of the inscribed circle of the first portion 112 is smaller than the diameter of the inscribed circle of the second portion 113.

[0045] In some embodiments, see Figure 7 , along the direction from the opening 12 of the extractor 10 toward the base 13, the distance between the inner wall surface of the first part 112 and the central axis of the first cavity 111 is the same, so that the degree of compression of the outer wall surface of the aerosol generating product by each part of the first part 112 is consistent, and the force on the aerosol generating product is more uniform. In other embodiments, please refer to Figure 8, the first cavity 111 extends in the axial direction, the inner wall surface of the first part 112 includes a guide slope 1122 extending obliquely in the axial direction, the guide slope 1122 is arranged at the top of the groove 114, the stopper 1121 is formed at the lower end of the guide slope 1122, and the distance between the guide slope 1122 and the central axis of the first cavity 111 gradually decreases along the direction from the opening 12 of the cigarette holder to the base 13. That is, the guide slope 1122 is a wedge-shaped structure, so that the interference effect of the stopper 1121 on the outer wall surface of the aerosol generating product can be the best, so as to enhance the fixing effect of the stopper 1121 on the aerosol generating product.

[0046] In some embodiments, see Figure 7 The groove 114 includes a through groove 114 penetrating the side wall 11, and / or the groove 114 includes a blind groove 114 formed by being recessed outward from the inner wall surface of the side wall 11. The structures of the through groove 114 and the blind groove 114 can form a stopper 1121 at the lower end of the first part 112, so that when the aerosol generating product is inserted into the first cavity 111, the outer wall surface of the aerosol generating product is squeezed at the abutment point with the first part 112, and the outer wall surface of the aerosol generating product is not squeezed at the through groove 114 or the blind groove 114, and the outer wall surface of the aerosol generating product enters the through groove 114 or the blind groove 114, so that an interference step is formed at the stopper 1121 on the outer wall surface of the aerosol generating product, and the interference step and the stopper 1121 interfere with each other in the axial direction, so that the stopper 1121 has a clamping and fixing effect on the aerosol generating product. In other embodiments, part of the groove 114 may be a through groove 114, and other parts may be blind grooves 114. Specifically, along the direction from the opening 12 to the base 13, a structure is formed in which the first part 112, the blind groove 114, the through groove 114 and the base 13 are sequentially distributed. That is, the part of the groove 114 close to the first part 112 is the blind groove 114, so that the lower end of the first part 112 forms a stopper 1121.

[0047] In some embodiments, see Figure 3 , the lower end of the second part 113 is connected to the base 13, the base 13 defines a part of the bottom boundary 114c of the groove 114, and the second part 113 defines a part of the side boundary 114b of the groove 114. Through the above structure, the bottom of the groove 114 can be directly defined by the base 13, so that when the groove 114 is a through groove 114 that penetrates the side wall 11, the cleaning tool can enter the first cavity 111 from the through groove 114 to clean the inner surface of the side wall 11 and the surface of the base 13, reducing the sanitary dead angle between the base 13 and the first part 112 and / or the second part 113, and reducing the difficulty of cleaning the base 13 by the cleaning tool.

[0048] In some embodiments, see Figure 7, along the direction from the opening 12 of the extractor 10 toward the base 13, the axial length L1 of the groove 114 satisfies: 5mm≤L1≤18mm; and / or, the axial length L1 of the groove 114 is greater than or equal to 1 / 2 of the axial length L2 of the side wall 11. By setting the axial length of the groove 114 within the above range, it can be ensured that the groove 114 has enough space for the cleaning tool to enter the first cavity 111 for cleaning.

[0049] In some embodiments, see Fig. 9 , there are multiple first parts 112 and multiple grooves 114, and the multiple first parts 112 are arranged one-to-one with the multiple grooves 114, so that the number of the formed stoppers 1121 is multiple, and a second part 113 is arranged between two adjacent first parts 112. Through the above structure, the multiple stoppers 1121 formed in the circumferential direction of the side wall 11 can interfere more evenly with the outer wall surface of the aerosol generating article, thereby enhancing the fixing effect of the stoppers 1121 on the aerosol generating article.

[0050] The aerosol generating device 100 of the embodiment of the present application includes an extractor 10, which includes a side wall 11, a first cavity 111 formed on the inner side of the side wall 11, an opening 12 formed at the upper end of the side wall 11, and a bottom bracket 13 connected to the lower end of the side wall 11, wherein the opening 12 is used for inserting an aerosol generating product into the first cavity 111, and the bottom bracket 13 is used to support the bottom of the aerosol generating product; the side wall 11 includes a first portion 112 and a second portion 113 arranged along the circumference of the first cavity 111, and a groove 114 arranged between the first portion 112 and the bottom bracket 13, wherein the first portion 112 and the bottom bracket 13 are provided. The diameter of the inscribed circle of the first part 112 is smaller than the diameter of the inscribed circle of the second part 113; the lower end of the first part 112 defines at least a portion of the boundary of the top of the groove 114, and at least a portion of the lower end of the first part 112 forms a stopper 1121, and the first part 112 is configured to interfere with the aerosol generating product in the radial direction when the aerosol generating product is received in the first cavity 111, so as to squeeze the aerosol generating product to form a step on the surface of the aerosol generating product, and the stopper 1121 interferes with the step in the axial direction to prevent the aerosol generating product from escaping from the first cavity 111. By providing the structure of the groove 114 between the first part 112 and the base 13, the stopper 1121 having a fixing effect on the aerosol generating product can be formed at the lower end of the first part 112, so that the wall thickness of the first part 112 can be greatly reduced, thereby reducing the overall size of the extractor 10, thereby reducing the overall size of the aerosol generating device 100.

[0051] In one embodiment of the present application, please refer to Figure 1The aerosol generating device 100 further comprises a heating element 20 for heating the aerosol generating article 200 so that the aerosol generating article 200 generates aerosol.

[0052] Please refer to Figure 1 and Figure 3 As an example, a through hole 131 is provided on the base 13 of the extractor 10, and the heating element 20 extends axially, and at least a portion of it can pass through the through hole 131 on the base 13, thereby being inserted into the first cavity 111. When the aerosol generating article 200 is connected to the first cavity 111, at least a portion of the heating element 20 can be inserted into the interior of the aerosol generating article 200, thereby heating the aerosol generating article 200 internally.

[0053] The lifter 10 is configured to be movable relative to the heating element 20. For example, the lifter 10 can carry the aerosol generating article 200 to move linearly relative to the heating element 20 along the axial direction or carry the aerosol generating article 200 to move spirally relative to the heating element 20. For example, the lifter 10 can carry the aerosol generating article 200 to rotate relative to the heating element 20. By making the lifter 10 carry the aerosol generating article 200 to move relative to the heating element 20, the adhesion between the aerosol generating article 200 and the heating element 20 is released, so as to prevent the aerosol generating article 200 from breaking or falling off during the removal process.

[0054] The heating element 20 may include a resistive material, which is electrically connected to the power supply assembly inside the aerosol generating device 100 and can obtain power from the power supply assembly to generate Joule heat to heat the aerosol generating product. The heating element 20 may include an infrared material, which can release infrared rays to heat the aerosol generating product when it is excited or obtains power provided by the power supply assembly. The heating element 20 may include a sensing material and an induction coil, which is electrically connected to the power supply assembly to generate a changing magnetic field, and the sensing material is located in the magnetic field generated by the induction coil, and can generate eddy currents and hysteresis based on the magnetic field to generate heat to heat the aerosol generating product.

[0055] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An aerosol generating device, characterized in that: include: An extractor, comprising a side wall, a first cavity formed on the inner side of the side wall, an opening formed on the upper end of the side wall, and a bottom bracket connected to the lower end of the side wall, wherein the opening is used for inserting an aerosol generating product into the first cavity, and the bottom bracket is used for supporting the bottom of the aerosol generating product; The side wall includes a first portion and a second portion arranged along the circumference of the first cavity, and a groove arranged between the first portion and the base, and a distance between the first portion and the central axis of the first cavity is smaller than a distance between the second portion and the central axis of the first cavity; The lower end of the first part defines at least a portion of the boundary of the top of the groove, and at least a portion of the lower end of the first part forms a stop portion, and the stop portion is configured to interfere with the aerosol generating product in the radial direction when the aerosol generating product is received in the first cavity to prevent the aerosol generating product from escaping from the first cavity.

2. The aerosol generating device according to claim 1, characterized in that: The inner wall surface of the first part includes a convex curved surface, and the convex curved surface is connected to the second part on both sides in the circumferential direction; or The inner wall surface of the first part includes a plane, and the plane is connected to the second part on both sides of the circumferential direction; or The inner wall surface of the first part includes a concave curved surface, and the concave curved surface is respectively connected to the second part on both sides in the circumferential direction.

3. The aerosol generating device according to claim 1, characterized in that: The first cavity extends axially, and the inner wall surface of the first part includes a guiding slope extending obliquely in the axial direction. Along the direction from the opening toward the base, the distance between the guiding slope and the central axis of the first cavity gradually decreases.

4. The aerosol generating device according to claim 1, characterized in that: The wall thickness of the first portion is greater than the wall thickness of the second portion; or, The wall thickness of the first portion is the same as the wall thickness of the second portion.

5. The aerosol generating device according to claim 1, characterized in that: The width K1 of the first portion satisfies: 1mm≤K1≤8mm; and / or The width of the first portion is less than or equal to the width of the groove.

6. The aerosol generating device according to claim 1, characterized in that: The lower end of the second portion is connected to the base, and the second portion defines a portion of a side boundary of the groove.

7. The aerosol generating device according to claim 1, characterized in that: The groove comprises a through groove penetrating the side wall, and / or the groove comprises a blind groove formed by being recessed outward from the inner wall surface of the side wall.

8. The aerosol generating device according to claim 1, characterized in that: The first cavity extends axially; The axial length L1 of the groove satisfies: 5mm≤L1≤18mm; and / or The axial length of the groove is greater than or equal to 1 / 2 of the axial length of the side wall.

9. The aerosol generating device according to claim 1, characterized in that: A difference R between a distance between the second portion and the central axis of the first cavity and a distance between the first portion and the central axis of the first cavity satisfies: 1 mm ≤ R ≤ 3 mm.

10. The aerosol generating device according to claim 1, characterized in that The base defines a portion of the groove.

11. The aerosol generating device according to claim 1, characterized in that: There are multiple first parts and multiple grooves, and the multiple first parts are arranged in a one-to-one correspondence with the multiple grooves, so that there are multiple stoppers, and one second part is arranged between two adjacent first parts.

Images