Aerosol generating device

Abstract

An aerosol generating device is provided with a heating channel, a clamping channel and an insertion opening, the clamping channel is communicated with the insertion opening and the heating channel, and an annular groove is formed in the channel wall of the clamping channel; the aerosol generating device is provided with the sealing air cavity located in the annular groove, the aerosol generating device comprises the clamping piece surrounding the clamping channel, the clamping piece is locally located in the annular groove, the clamping piece is provided with the outer protruding part located on the radial inner side of the sealing air cavity, and the minimum radial size of the outer protruding part is smaller than the radial size of the heating channel; the outer protruding part is provided with a flexible or elastic structure used for being attached to the peripheral face of the aerosol generating product so that the outer protruding part and the sealing air cavity can be deformed conveniently under the extrusion effect of the aerosol generating product, and the aerosol generating product can be smoothly inserted into the heating channel. And the extruded and deformed sealing air cavity can be pressed on the outer peripheral surface of the aerosol generating product by the outer convex part, so that the aerosol generating product is not easy to fall off from the heating channel.

Description

Technical Field

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

[0002] An aerosol-generating device is a device that heats an aerosol-generating article to produce an aerosol. The aerosol-generating device has an atomization channel and an opening communicating with the atomization channel. At least a portion of the aerosol-generating article can be inserted into the atomization channel through the opening. The aerosol-generating article is heated by a heating structure disposed within the atomization channel.

[0003] The aerosol generating device includes a clamping structure, which includes raised ribs arranged on the wall of the atomizing channel. The aerosol generating product is clamped by means of an interference fit between the raised ribs and the aerosol generating product, so as to reduce the probability of the aerosol generating product escaping from the aerosol generating channel; however, due to the inconsistent outer diameters of the aerosol generating products during manufacture, it is impossible to ensure that the aerosol generating product can be smoothly inserted while also ensuring that the aerosol generating product is not easily escaping from the aerosol generating device. Utility Model Content

[0004] The present application provides an aerosol generating device to solve the technical problem that the aerosol generating device cannot ensure that the aerosol generating product can be smoothly inserted while ensuring that the aerosol generating product is not easily removed from the aerosol generating device.

[0005] According to the first aspect, an embodiment provides an aerosol generating device, comprising a heating channel, a clamping channel, and an insertion port, wherein the clamping channel communicates with the insertion port and the heating channel, and an annular groove surrounding the clamping channel is provided on a channel wall of the clamping channel;

[0006] The aerosol generating device has a sealed air cavity located in the annular groove, and the aerosol generating device includes a clamping member arranged around the clamping channel, wherein a portion of the clamping member is located in the annular groove, and the clamping member has an outer protrusion located radially inward of the sealed air cavity, wherein the minimum radial dimension of the outer protrusion is smaller than the radial dimension of the heating channel, and the outer protrusion has a flexible or elastic structure for fitting with the outer peripheral surface of the aerosol generating product.

[0007] In an optional embodiment, the clamping member has a connecting portion connected to the two ends of the outer protrusion in the extension direction of the clamping channel, the connecting portion is sealed with the side wall of the annular groove, and the sealing air cavity is located between the bottom wall of the annular groove and the clamping member.

[0008] In an optional embodiment, the aerosol generating device further includes an annular bracket, which is located in the annular groove; the connecting portion is sealed and clamped between the groove side wall of the annular groove and the annular bracket in the extension direction of the clamping channel, and the sealed air cavity is formed by the annular bracket and the clamping member.

[0009] In an optional embodiment, the annular bracket includes two annular side plates extending toward the sealed air cavity, the two annular side plates are arranged at intervals in the extension direction of the clamping channel, and the connecting portion is clamped between the corresponding annular side plates and the side walls of the annular groove in the extension direction of the clamping channel.

[0010] In an optional embodiment, the annular bracket includes an annular connecting plate, which is connected to the radial outer end of the annular side plate, and the annular side plate is located in the annular groove. The annular connecting plate, the annular side plate and the side wall of the annular groove form an annular mounting groove, and the connecting portion is located in the annular mounting groove.

[0011] In an optional embodiment, the outer protrusion extends in the axial direction of the clamping channel, the connecting portion extends in the radial direction of the clamping channel, and the wall thickness of the outer protrusion is smaller than the wall thickness of the connecting portion.

[0012] In an optional embodiment, the convex portion has an outward convex curved surface or an outward convex arc-shaped surface arranged toward the clamping channel, and the outward convex curved surface or the outward convex arc-shaped surface is used to fit with the outer peripheral surface of the aerosol generating article.

[0013] In an optional embodiment, the aerosol generating device includes a shell and a heating assembly, the insertion port is located on the shell, the shell has an installation cavity connected to the insertion port, the heating assembly is located in the installation cavity, the heating channel is located in the heating assembly, and the heating assembly and the shell are abutted against each other in the axial direction of the clamping channel to enclose and form the annular groove.

[0014] In an optional embodiment, the shell has a shell body and an annular substrate connected to the shell body, the annular substrate is abutted against the heating component in the extension direction of the clamping channel, and the shell body, the annular substrate and the heating component enclose to form the annular groove.

[0015] In an optional embodiment, the heating assembly includes a tube body and a first connecting member and a second connecting member sealed at both ends of the tube body, the heating channel is located in the tube body, and one of the first connecting member and the second connecting member is abutted against the shell in the extension direction of the clamping channel to enclose and form the annular groove.

[0016] According to the aerosol generating device of the above embodiment, the aerosol generating device has a heating channel, a clamping channel and an insertion port, the clamping channel connects the insertion port and the heating channel, and an annular groove surrounding the clamping channel is provided on the channel wall of the clamping channel; because the aerosol generating device has a sealed air cavity located in the annular groove, the aerosol generating device includes a clamping member surrounding the clamping channel, a part of the clamping member is located in the annular groove, the clamping member has an outer protrusion located on the radial inner side of the sealed air cavity, the minimum radial dimension of the outer protrusion is smaller than the radial dimension of the heating channel, the outer protrusion has a flexible or elastic structure for fitting with the outer peripheral surface of the aerosol generating product, so as to facilitate the squeezing of the outer protrusion and the sealed air cavity by the aerosol generating product, so that the outer protrusion and the sealed air cavity are deformed, which helps to realize the smooth insertion of the aerosol generating product into the heating channel, and the sealed air cavity after being squeezed and deformed can be pressed against the outer peripheral surface of the aerosol generating product by the deformable outer protrusion to ensure that the aerosol generating product is not easy to fall out of the heating channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a partial structure of an aerosol generating device in one embodiment;

[0018] Figure 2 Schematic diagram of the internal structure of an aerosol generating article and a partial aerosol generating device in one embodiment;

[0019] Figure 3 This is a schematic structural diagram of the cutaway annular bracket and the clamping member in one embodiment.

[0020] In the figure: 1. Shell; 11. Shell body; 111. Insertion port; 12. Annular substrate; 21. Tube; 22. Heating channel; 23. First connecting member; 231. Inner cylinder; 232. Outer cylinder; 233. Connecting plate; 24. Second connecting member; 3. Annular groove; 4. Annular bracket; 41. Annular side plate; 42. Annular connecting plate; 43. Annular mounting groove; 5. Clamping member; 51. Outer convex portion; 512. Outer convex arc surface; 52. Connecting portion; 6. Sealed air cavity; 7. Clamping channel; 8. Aerosol generating product. DETAILED DESCRIPTION

[0021] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0022] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0023] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0024] The present application discloses an aerosol generating device, which is capable of heating an aerosol generating article 8 to generate aerosol.

[0025] Please refer to Figures 1 to 3 The aerosol generating device has a heating channel 22, a clamping channel 7 and an insertion port 111. The heating channel 22 and the clamping channel 7 are both cylindrical channels. The extension direction of the heating channel 22 is the same as the extension direction of the clamping channel 7. In the extension direction of the clamping channel 7, the clamping channel 7 connects the insertion port 111 and the heating channel 22. The aerosol generating product 8 can be inserted into the heating channel 22 from the insertion port 111 through the clamping channel 7, and the aerosol generating product 8 can be fixed in the position of the aerosol generating product 8 in the heating channel 22 through the structure installed on the channel wall of the clamping channel 7, thereby reducing the probability of the aerosol generating product 8 escaping from the heating channel 22.

[0026] The aerosol generating device is provided with an annular groove 3 surrounding the clamping channel 7 at the channel wall position of the clamping channel 7, and the notch of the annular groove 3 is toward the center of the clamping channel 7 in the radial direction of the clamping channel 7. The aerosol generating device has a sealed air cavity 6 located at the position of the annular groove 3. It can be understood that in the extension direction of the clamping channel 7, the sealed air cavity 6 is located at the position of the annular groove 3. The sealed air cavity 6 can be completely located in the annular groove 3, or a part can be set in the annular groove 3, another part is located outside the annular groove 3, and another part can protrude from the notch of the annular groove 3 toward the center of the clamping channel 7.

[0027] The aerosol generating device includes a clamping member 5 arranged around the clamping channel 7. The clamping member 5 is an annular structure. A portion of the clamping member 5 is located in the annular groove 3. The clamping member 5 has an outer convex portion 51 located radially inward of the sealed air cavity 6. The outer convex portion 51 protrudes toward the center of the clamping channel 7 in the radial direction of the clamping channel 7. The minimum radial dimension of the outer convex portion 51 is smaller than the radial dimension of the heating channel 22, so as to facilitate the clamping and fixing of the aerosol generating product 8 by the outer convex portion 51. The outer convex portion 51 has a flexible structure or elastic structure for fitting with the outer peripheral surface of the aerosol generating product 8, which can be used in the aerosol generating device. During the process of inserting the generating product 8 into the clamping channel 7, the outer protrusion 51 is squeezed by the aerosol generating product 8, so that the outer protrusion 51 and the entire sealed air cavity 6 are deformed, thereby facilitating the smooth insertion of the aerosol generating product 8 into the heating channel 22. After the aerosol generating product 8 is inserted into the heating channel 22, the sealed air cavity 6 that has been squeezed and deformed can be pressed against the outer peripheral surface of the aerosol generating product 8 through the deformed outer protrusion 51, thereby increasing the friction between the outer protrusion 51 and the outer peripheral surface of the aerosol generating product 8, so as to ensure that the aerosol generating product 8 is not easy to fall out of the heating channel 22.

[0028] In the present application, the portion of the outer protrusion 51 that is used to fit with the outer peripheral surface of the aerosol generating product 8 is set to a flexible structure or an elastic structure to facilitate the deformation of the outer protrusion 51. In an embodiment where at least a portion of the outer protrusion 51 is an elastic structure, the elastic deformation of the outer protrusion 51 can also be achieved, and the elastic restoring force applied by the deformed outer protrusion 51 to the aerosol generating product 8 can increase the clamping force of the clamping member 5 on the aerosol generating product 8, further ensuring that the aerosol generating product 8 is not easy to escape from the heating channel 22 and the entire aerosol generating device.

[0029] In one embodiment, the sealed air cavity 6 is formed by enclosing the clamping member 5, and the sealed air cavity 6 is integrally formed in the clamping member 5. The clamping member 5 is installed in the annular groove 3. In the radial direction of the clamping channel 7, the clamping member 5 has an outer protrusion 51 located on the inner side of the annular groove 3, and the aerosol generating product 8 can be clamped by the outer protrusion 51.

[0030] In one embodiment, the portion of the outer protrusion 51 of the clamping member 5 that contacts the aerosol-generating article 8 can be made of a rubber material with elastic deformation capabilities, or can also be made of a deformable flexible material. This ensures that when the aerosol-generating article 8 is inserted into the clamping channel 7, the outer protrusion 51 can deform to squeeze and seal the air cavity 6, facilitating smooth insertion of the aerosol-generating article 8. In other embodiments, the entire outer protrusion 51 or the entire clamping member 5 can be made of the aforementioned materials to facilitate integral molding of the clamping member 5.

[0031] In some embodiments, the sealed air cavity 6 is located between the bottom wall of the annular groove 3 and the clamping member 5. Figure 2 The clamping member 5 is a sheet-like structure as a whole, and the outer protrusion 51 in the clamping member 5 is arranged around the clamping channel 7, and the outer protrusion 51 extends in the extension direction of the clamping channel 7. The outer protrusion 51 protrudes toward the center of the clamping channel 7 in the radial direction of the clamping channel 7. The clamping member 5 also has two connecting parts 52, and the connecting parts 52 are arranged to extend in the radial direction of the clamping channel 7. The two connecting parts 52 are respectively connected to the two ends of the outer protrusion 51 in the extension direction of the clamping channel 7; the connecting part 52 can be an annular plate-like structure, and in the extension direction of the clamping channel 7, the connecting part 52 has a first side surface facing the outer protrusion 51 and a second side surface facing away from the outer protrusion 51, and the second side surface of the connecting part 52 is sealed with the side wall of the annular groove 3, so that the groove wall of the annular groove 3 and the clamping member 5 enclose the above-mentioned sealed air cavity 6.

[0032] In another embodiment, please refer to Figure 2 and Figure 3 The aerosol generating device further includes an annular bracket 4, which is located in the annular groove 3. A sealed air cavity 6 is formed by enclosing the annular bracket 4 and the clamping member 5. The annular bracket 4 is arranged in the extension direction of the clamping channel 7. The annular bracket 4 can be a plate-shaped or block-shaped structure arranged in the extension direction of the clamping channel 7. The two ends of the annular bracket 4 in the extension direction of the clamping channel 7 are respectively sealed with the first side surface of the corresponding connecting portion 52, so that the connecting portion 52 is sealed and clamped between the groove side wall of the annular groove 3 and the annular bracket 4 in the extension direction of the clamping channel 7. In this way, the sealing reliability between the clamping member 5 and the groove side wall of the annular groove 3 can be achieved. During the installation process of the clamping member 5 and the annular bracket 4 in the annular groove 3, the clamping member 5 can be sealedly connected to the annular bracket 4 first, and then the assembled clamping member 5 and the annular bracket 4 can be installed in the annular groove 3. This also facilitates the installation of the clamping member 5 and the annular bracket 4.

[0033] In one embodiment, please continue to refer to Figure 2 and Figure 3The annular bracket 4 is provided with two annular side plates 41 extending toward the sealed air cavity 6. The two annular side plates 41 are spaced apart in the extension direction of the clamping channel 7. The connecting portion 52 is sealed and clamped between the corresponding annular side plates 41 and the groove side wall of the annular groove 3 in the extension direction of the clamping channel 7. This helps to increase the sealing area between the connecting portion 52 and the annular bracket 4, thereby improving the sealing performance of the sealed air cavity 6, and can also reduce the probability of the connecting portion 52 near the insertion port 111 being detached from the annular groove 3 under the squeezing action of the aerosol generating product 8, thereby helping to achieve the sealing and structural integrity of the sealed air cavity 6. Reliability; and the annular side plate 41 extends toward the sealed air cavity 6, and the annular side plate 41 is used to support the sealed air cavity 6, which can reduce the deformation degree of the sealed air cavity 6 after being squeezed. Under the squeezing action of the aerosol generating product 8, the gas near the outer protrusion 51 in the sealed air cavity 6 can only move toward the two ends of the sealed air cavity 6 in the extension direction of the clamping channel 7, that is, the outer protrusion 51 on the clamping member 5 can only deform radially outward in the radial direction of the clamping channel 7, so as to increase the contact area between the clamping member 5 and the aerosol generating product 8, which helps to reduce the probability of the aerosol generating product 8 escaping from the heating channel 22.

[0034] For some embodiments, please refer to Figure 2 and Figure 3 The annular bracket 4 also includes an annular connecting plate 42, which is connected to the two annular side plates 41. The annular connecting plate 42 is arranged in the extension direction of the clamping channel 7, and the annular connecting plate 42 is located on the outside of the annular side plates 41 in the radial direction of the clamping channel 7.

[0035] In one embodiment, the annular connecting plate 42 is connected to the two annular side plates 41 at both ends in the extension direction of the clamping channel 7, the annular bracket 4 is located in the annular groove 3, the bottom wall of the annular groove 3, the side wall of the annular groove 3 and the annular side plate 41 form an annular mounting groove 43 surrounding the clamping channel 7, and the connecting portion 52 is located in the corresponding annular mounting groove 43. In this way, while meeting the sealing performance of the sealed air cavity 6, the sealing contact area between the connecting portion 52 and the annular groove 3 and the annular bracket 4 is improved, effectively reducing the probability of the connecting portion 52 escaping from the annular mounting groove 43 under the extrusion of the aerosol generating product 8.

[0036] In another embodiment, please continue to refer to Figure 2 and Figure 3In the extension direction of the clamping channel 7, the size of the annular connecting plate 42 is the same as the size of the bottom wall of the annular groove 3, that is, the width of the annular groove 3. The two annular side plates 41 are close to the annular connecting plate 42 in the middle position of the extension direction of the clamping channel 7. The groove side wall of the annular groove 3, the annular connecting plate 42 and the annular side plate 41 enclose an annular mounting groove 43 surrounding the clamping channel 7. The connecting plate 233 is located in the corresponding annular mounting groove 43. This can also improve the sealing connection between the connecting portion 52 and the annular groove 3 and the annular bracket 4. The contact area can reduce the probability of the connecting portion 52 falling out of the annular mounting groove 43 under the extrusion effect during the insertion of the aerosol generating product 8; and the connecting portion 52 contacts the annular connecting plate 42 at the radial outer end of the clamping channel 7, which can avoid the groove side wall of the annular groove 3 from abutting against the radial outer end of the connecting portion 52 during the overall installation of the annular bracket 4 and the clamping member 5 in the annular groove 3, thereby affecting the installation of the connecting portion 52 in the annular mounting groove 43, and helps to ensure that the connecting portion 52 is installed in place in the annular mounting groove 43.

[0037] In one embodiment, in order to further facilitate the insertion of the aerosol generating article 8 into the heating channel 22, please refer to Figure 2 and Figure 3 The wall thickness of the outer protrusion 51 in the clamping member 5 in the radial direction of the clamping channel 7 is set to be smaller than the wall thickness of the connecting portion 52 in the extending direction of the clamping channel 7. This facilitates the deformation of the outer protrusion 51 under the extrusion during the insertion of the aerosol generating product 8, that is, it can reduce the resistance of the outer protrusion 51 to the aerosol generating product 8 during the insertion into the heating channel 22, which helps to make the aerosol generating product 8 inserted into the heating channel 22 smoother.

[0038] In addition, the wall thickness of the connecting portion 52 in the extending direction of the clamping channel 7 is larger, which helps to reduce the elastic deformation capacity of the connecting portion 52 and improve the installation structural stability of the clamping member 5 in the annular groove 3.

[0039] Of course, in other embodiments, the wall thickness of the outer protrusion 51 in the clamping member 5 in the radial direction of the clamping channel 7 can be set to be equal to the wall thickness of the connecting portion 52 in the extension direction of the clamping channel 7. The material of the outer protrusion 51 can be changed to make the elasticity of the outer protrusion 51 greater than the elasticity of the connecting portion 52, or the flexibility of the outer protrusion 51 can be made greater than the flexibility of the connecting portion 52, so as to reduce the resistance of the aerosol generating product 8 to be inserted into the heating channel 22, thereby making the aerosol generating product 8 inserted into the heating channel 22 smoother.

[0040] In one embodiment, in order to further facilitate the insertion of the aerosol generating article 8 into the heating channel 22 and further reduce the probability of the aerosol generating article 8 being removed from the heating channel 22, please refer to Figure 2 and Figure 3The outer convex portion 51 may include an outer convex curved surface or outer convex arc surface 512 arranged in the radial direction of the clamping channel 7 toward the center of the clamping channel 7, so that the outer convex curved surface or outer convex arc surface 512 contacts the outer circumferential surface of the aerosol-generating article 8. For example, the outer convex portion 51 may be configured to project toward the center of the clamping channel 7 as a whole, or the surface of the outer convex portion 51 in the radial direction that contacts the aerosol-generating article 8 may be the outer convex curved surface or outer convex arc surface 512. This arrangement helps to reduce the resistance of the outer protrusion 51 to the aerosol generating product 8 during the insertion of the aerosol generating product 8 into the heating channel 22, thereby making the insertion of the aerosol generating product 8 into the heating channel 22 smoother, and the outer convex curved surface or the outer convex arc surface 512 can also deform radially outward during the insertion of the aerosol generating product 8 to increase the contact area between the outer protrusion 51 and the outer peripheral surface of the aerosol generating product 8, thereby increasing the resistance of the aerosol generating product 8 to escape from the heating channel 22, which helps to reduce the probability of the aerosol generating product 8 escaping from the heating channel 22.

[0041] In one embodiment, please refer to Figure 2 and Figure 3 The radial dimension of the convex arc surface 512 or the convex curved surface gradually decreases and then gradually increases from the insertion port 111 to the heating channel 22 in the extension direction of the clamping channel 7. In this way, the convex arc surface 512 or the convex curved surface can be used to guide the aerosol generating product 8 during the process of inserting it into the heating channel 22, which is more conducive to the insertion of the aerosol generating product 8.

[0042] In other embodiments, the outer protrusion 51 may be provided with a conical surface for contacting the outer peripheral surface of the aerosol generating product 8, and the radial dimension of the conical surface gradually decreases from the insertion port 111 to the heating channel 22 in the extension direction of the clamping channel 7. The conical surface can provide guidance for the aerosol generating product 8 to facilitate the smooth insertion of the aerosol generating product 8 into the heating channel 22, and the conical surface can also be deformed radially outward after the aerosol generating product 8 is inserted into place to fit the outer peripheral surface of the aerosol generating product 8, so as to increase the resistance of the aerosol generating product 8 to escape from the heating channel 22.

[0043] In one embodiment, please refer to Figure 1 and Figure 2 The aerosol generating device comprises a housing 1 and a heating assembly. Figure 1 and Figure 2Only a part of the shell 1 is shown in the figure. An insertion port 111 for inserting the aerosol generating product 8 is provided on the shell 1. The shell 1 has a mounting cavity connected to the insertion port 111. The heating component is located in the mounting cavity. The heating channel 22 is provided in the heating component. The heating component can be installed in the mounting cavity by a bracket (not shown in the figure) or other limiting structure located in the shell 1, and the heating component can be abutted against the part of the shell 1 where the insertion port 111 is provided in the extension direction of the clamping channel 7, so that the shell 1 and the heating component enclose a ring groove 3.

[0044] Specifically, please refer to Figure 2 The shell body 1 includes a shell body 11 and an annular base plate 12. The insertion port 111 is provided on the shell body 11. The annular base plate 12 is arranged around the clamping channel 7. In the extension direction of the clamping channel 7, the annular base plate 12 is connected to the side of the shell body 11 facing the heating component. The annular base plate 12 can be set to abut against the heating component in the extension direction of the clamping channel 7, so that the shell body 11, the annular base plate 12 and the heating component enclose a ring groove 3.

[0045] In other embodiments, an annular substrate 12 is further provided on the heating assembly. The annular substrate 12 extends toward the shell body 11 in the extension direction of the clamping channel 7 . The shell body 11 , the heating assembly and the annular substrate 12 enclose an annular groove 3 .

[0046] In one embodiment, please continue to refer to Figure 2 The heating assembly may include a tube body 21, a first connecting member 23 and a second connecting member 24. The heating channel 22 is located in the tube body 21. A heating member (not shown in the figure) is fixedly connected to the outer wall of the tube body 21. The heat of the heating member can be transferred to the aerosol generating product 8 through the tube body 21 to achieve heating of the aerosol generating product 8.

[0047] Both the first connecting member 23 and the second connecting member 24 have openings connected to the heating channel 22. The first connecting member 23 and the second connecting member 24 are sealed and connected to the two ends of the tube body 21 in the extension direction of the clamping channel 7. The first connecting member 23 is arranged on the side of the second connecting member 24 facing the clamping member 5 in the extension direction of the clamping channel 7, so that the first connecting member 23 and the shell 1 enclose a ring groove 3.

[0048] For further information, please refer to Figure 2In one embodiment, a first connecting member 23 is provided having an inner cylinder 231 and an outer cylinder 232. The inner cylinder 231 and the outer cylinder 232 are spaced apart in the radial direction of the clamping channel 7. The inner cylinder 231 and the outer cylinder 232 are connected by a connecting plate 233 extending in the radial direction of the clamping channel 7. The connecting plate 233 is an annular structure. The connecting plate 233 can be abutted against the annular base plate 12 on the shell 1 in the extension direction of the clamping channel 7, so that the connecting plate 233, the shell body 11 and the annular base plate 12 enclose a ring groove 3.

[0049] In addition, the outer cylinder 232 can be provided to seal with the radial outer peripheral surface of the second connecting member 24 to form an annular heat-insulating channel surrounding the heating channel 22 between the first connecting member 23, the second connecting member 24 and the tube body 21, thereby reducing the heat transfer of the heating element to the outside in the radial direction of the tube body 21.

[0050] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. An aerosol generating device, characterized in that: The aerosol generating device comprises a heating channel, a clamping channel and an insertion port, wherein the clamping channel communicates with the insertion port and the heating channel, and an annular groove surrounding the clamping channel is arranged on a channel wall of the clamping channel; The aerosol generating device has a sealed air cavity located in the annular groove, and includes a clamping member arranged around the clamping channel, wherein a portion of the clamping member is located in the annular groove, and the clamping member has an outer protrusion located radially inside the sealed air cavity, wherein the minimum radial dimension of the outer protrusion is smaller than the radial dimension of the heating channel, and the outer protrusion has a flexible or elastic structure for fitting with the outer peripheral surface of the aerosol generating product.

2. The aerosol generating device according to claim 1, characterized in that The clamping member has connecting parts connected to the two ends of the outer protrusion in the extension direction of the clamping channel, the connecting parts are sealed with the groove side walls of the annular groove, and the sealing air cavity is located between the groove bottom wall of the annular groove and the clamping member.

3. The aerosol generating device according to claim 2, characterized in that The aerosol generating device also includes an annular bracket, which is located in the annular groove; the connecting part is sealed and clamped between the groove side wall of the annular groove and the annular bracket in the extension direction of the clamping channel, and the sealed air cavity is formed by the annular bracket and the clamping member.

4. The aerosol generating device according to claim 3, characterized in that The annular bracket includes two annular side plates extending toward the sealed air cavity, the two annular side plates are arranged at intervals in the extension direction of the clamping channel, and the connecting part is clamped between the corresponding annular side plates and the groove side walls of the annular groove in the extension direction of the clamping channel.

5. The aerosol generating device according to claim 4, characterized in that The annular bracket includes an annular connecting plate, which is connected to the radial outer end of the annular side plate. The annular side plate is located in the annular groove. The annular connecting plate, the annular side plate and the side wall of the annular groove together form an annular mounting groove, and the connecting portion is located in the annular mounting groove.

6. The aerosol generating device according to any one of claims 2 to 5, characterized in that The outer protrusion extends in the axial direction of the clamping channel, the connecting portion extends in the radial direction of the clamping channel, and the wall thickness of the outer protrusion is smaller than the wall thickness of the connecting portion.

7. The aerosol generating device according to any one of claims 1 to 5, characterized in that The convex portion has an outer convex curved surface or an outer convex arc-shaped surface arranged toward the clamping channel, and the outer convex curved surface or the outer convex arc-shaped surface is used to fit with the outer peripheral surface of the aerosol generating product.

8. The aerosol generating device according to any one of claims 1 to 5, characterized in that The aerosol generating device includes a shell and a heating component, the insertion port is located on the shell, the shell has a mounting cavity connected to the insertion port, the heating component is located in the mounting cavity, the heating channel is located in the heating component, and the heating component and the shell are abutted against each other in the axial direction of the clamping channel to enclose and form the annular groove.

9. The aerosol generating device according to claim 8, characterized in that The shell body comprises a shell body and an annular substrate connected to the shell body, the annular substrate abuts against the heating component in the extending direction of the clamping channel, and the shell body, the annular substrate and the heating component enclose the annular groove.

10. The aerosol generating device according to claim 8, wherein: The heating assembly includes a tube body and a first connector and a second connector sealed at both ends of the tube body, the heating channel is located in the tube body, and one of the first connector and the second connector is abutted against the shell in the extension direction of the clamping channel to enclose and form the annular groove.

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