An aerosol generating device

Abstract

The present invention provides an aerosol generating device, comprising a shell and a cigarette bin located in the shell, the cigarette bin is used to contain and heat an aerosol generating matrix, and has an axial direction and a radial direction, the cigarette bin is formed by extending through multiple sections of end connections, the cigarette bin extends along the axial direction and directly passes through the outside of the shell, and the cigarette bin has the same size in the axial direction and in the radial direction. In the aerosol generating device of the present invention, the cigarette bin adopts a straight-through channel method, which solves the problem of sanitary dead corners. After the device is used for a period of time, the residue inside the cigarette bin can be cleaned by using a tool to penetrate the internal channel of the cigarette bin, which is easy to operate.

Description

Technical Field

[0001] The invention relates to the field of aerosol heating, and in particular to an aerosol generating device. Background Art

[0002] As people pay more and more attention to health, they realize that traditional cigarettes are harmful to health. Therefore, a product called "heat-not-burn cigarettes" has emerged. Compared with traditional cigarettes, heat-not-burn cigarettes can meet the physiological needs of users while reducing harmful substances such as tar and carbon monoxide brought by traditional cigarettes.

[0003] Heat-not-burn cigarettes heat the tobacco in the aerosol-generating matrix to release aerosols, giving users a smoking experience. The tobacco is not burned, so no complex chemical reactions occur, allowing users to enjoy the experience while reducing the inhalation of harmful substances. In the prior art, the flue used to place heated cigarettes is equipped with a stepped structure to limit the position of the cigarettes, but this setting method will bring many sanitary blind spots and increase the difficulty of cleaning. Summary of the invention

[0004] The present invention provides an aerosol generating device to solve the above technical problems.

[0005] The present invention provides an aerosol generating device, comprising a shell and a cigarette cartridge located in the shell, wherein the cigarette cartridge is used to contain and heat an aerosol generating substrate and has an axial direction and a radial direction, wherein the cigarette cartridge is formed by extending through multiple end connections, wherein the cigarette cartridge extends along the axial direction and directly passes through the outside of the shell, and along the axial direction, the dimensions of the cigarette cartridge in the radial direction are the same.

[0006] The cigarette bin of the present invention adopts a straight-through channel to solve the problem of sanitary dead corners. After the device has been used for a period of time, the residue inside the cigarette bin can be cleaned by using a tool to penetrate the internal channel of the cigarette bin, which is easy to operate. The channel formed by the multi-section terminal extension can effectively insulate and reduce the heat transfer from the channel extension.

[0007] Optionally, the multiple sections include a heating chamber and an extension chamber with an inner diameter equal to that of the heating chamber, one end of the extension chamber is axially aligned and connected to one end of the heating chamber, and the other end of the extension chamber is directly connected to the outside of the shell.

[0008] Optionally, the extension bin includes an extension tube and an insulation tube located between the extension tube and the heating bin along the axial direction, and opposite ends of the insulation tube along the axial direction are respectively connected to the heating bin and the extension tube ends.

[0009] Optionally, the extension tube extends along the axial direction to the bottom of the shell.

[0010] Optionally, the specific heat capacity of the inner wall material of the insulation tube is greater than the specific heat capacity of the inner wall material of the heating chamber.

[0011] Optionally, the inner wall material of the thermal insulation tube is selected from one of PEEK, polyimide and ceramic.

[0012] Optionally, the aerosol generating device further comprises an upper end cover, one end of which is connected to the upper end of the heating chamber, and the other end of which extends and is connected to the top of the shell so that the aerosol generating matrix can be delivered from the upper end cover.

[0013] Optionally, the insulation tube constitutes a lower end cover, and together with the upper end cover, clamps the heating chamber.

[0014] Optionally, the aerosol generating device further comprises an end plug, which is detachable and used to be inserted into the cigarette cartridge from the bottom of the shell.

[0015] Optionally, in the radial direction, an air-guiding gap is provided between the end plug and the shell and the cigarette bin to allow air flow.

[0016] Optionally, at least a portion of an outer peripheral wall of the end plug forms the air guiding gap.

[0017] The present invention provides a channel blocking component that can be used for an aerosol generating device, the aerosol generating device includes a channel with an insertion end, the channel blocking component includes an end plug, the end plug has a front end and a rear end, the end plug is inserted into the channel from the insertion end from the front end, and the rear end is close to the outside of the insertion end, a first magnetic body is provided on the end plug, and a second magnetic body is provided on the channel, the first magnetic body has the same polarity as the second magnetic body, and during the process of inserting the end plug into the channel, the first magnetic body moves away from the insertion end and passes over the second magnetic body.

[0018] By adopting the above technical solution, the channel blocking component can feel the pushing force when the end plug is installed and removed, and is easy to use.

[0019] Optionally, a first threaded portion is provided on the outer peripheral wall of the end plug, and an engaging portion corresponding in position and engaging with the first threaded portion is provided on the inner wall of the channel so that the end plug can be screwed in and out.

[0020] Optionally, the first threaded portion is located between the first magnetic body and the rear end in the axial direction.

[0021] Optionally, the end plug is inserted into the channel from the front end through the plugging end of the engaging portion, and at the starting position where the first threaded portion is screwed into the engaging portion, the first magnetic body is axially located at a first position, and the first position is closer to the plugging end than the second magnetic body is to the plugging end, and at the end position where the first threaded portion is fully screwed into the engaging portion, the first magnetic body moves axially to a second position, and the second position is farther from the plugging end than the second magnetic body is from the plugging end.

[0022] Optionally, a pitch of the first threaded portion is greater than or equal to a distance between the first position and the second position.

[0023] Optionally, the first magnetic body is provided on the outer peripheral wall of the end plug between the front end and the rear end.

[0024] Optionally, there are multiple first magnetic bodies, and the multiple first magnetic bodies have the same axial position and the same polarity toward the outside, and / or there are multiple second magnetic bodies, and the multiple second magnetic bodies have the same polarity, are located on the inner circumferential wall of the channel and have the same axial position.

[0025] Optionally, the first threaded portion is an external thread, and the engaging portion is an internal thread.

[0026] Optionally, the first threaded portion and the meshing portion are double-start threads or multi-start threads.

[0027] Optionally, the first threaded portion is a partial thread, and the engaging portion is a full thread.

[0028] Optionally, an air-guiding gap is provided between the end plug and the channel to allow air flow.

[0029] Optionally, at least a portion of an outer peripheral wall of the end plug forms the air guiding gap.

[0030] Optionally, the channel is capable of receiving and heating an aerosol-generating substrate.

[0031] The present invention also provides an aerosol generating device, comprising any one of the above-mentioned channel blocking components.

[0032] The aerosol generating device of the present invention blocks the channel by using the end plug through the setting of the blocking component, and at the same time, can limit the content in the channel.

[0033] A specific embodiment of the present invention provides an aerosol generating device, which also includes a shell, the channel includes a cigarette chamber, the cigarette chamber can accommodate and heat an aerosol generating matrix, the cigarette chamber is located in the shell, and has an axial and radial direction, the cigarette chamber extends along the axial direction and directly passes through the outside of the shell, and along the axial direction, the size of the cigarette chamber in the radial direction is the same.

[0034] Optionally, the cigarette chamber is formed by extending multiple ends, and the multiple sections include a heating chamber and an extension chamber with an inner diameter equal to the heating chamber, one end of the extension chamber is axially aligned and connected to one end of the heating chamber, and the other end of the extension chamber is directly connected to the outside of the shell.

[0035] Optionally, the extension bin includes an extension tube and an insulation tube located between the extension tube and the heating bin along the axial direction, and opposite ends of the insulation tube along the axial direction are respectively connected to the heating bin and the extension tube ends.

[0036] Optionally, the extension tube extends along the axial direction to the bottom of the shell.

[0037] Optionally, the aerosol generating device further comprises an upper end cover, one end of which is connected to the upper end of the heating chamber, and the other end of which extends and is connected to the top of the shell so that the aerosol generating matrix can be delivered from the upper end cover.

[0038] Optionally, the insulation tube constitutes a lower end cover, and together with the upper end cover, clamps the heating chamber.

[0039] Optionally, the end plug is used to plug into the extension bin from the bottom of the shell.

[0040] The present invention provides an aerosol generating device, comprising a cigarette bin and a heat insulation component, wherein the cigarette bin is used to contain and heat an aerosol generating substrate, the heat insulation component comprises a first heat insulation component, a secondary heat insulation component and a shell, the shell comprises an inner shell and an outer shell, the first heat insulation component is sleeved on the outer periphery of the cigarette bin, the secondary heat insulation component is sleeved on the outer periphery of the first heat insulation component and embedded in the inner shell, the outer shell is sleeved on the outer periphery of the inner shell, and a first heat insulation gap exists between the inner wall of the outer shell and the outer wall of the inner shell.

[0041] The above-mentioned insulation component is combined with a five-part structure to achieve insulation, namely the first insulation component, the secondary insulation component, the inner shell, the outer shell and the first insulation gap. It can play an insulation role without significantly increasing the volume of the cigarette body. Compared with the insulation method of simply using air or simply using rigid insulation components, the thermal insulation effect of the aerosol generating device of the present invention is more excellent.

[0042] Optionally, a second thermal insulation gap exists between the inner wall of the first thermal insulation component and the outer wall of the cigarette bin.

[0043] Optionally, both ends of the second thermal insulation gap along the axial direction are closed.

[0044] Optionally, sealing members are provided between two opposite ends of the first heat insulating member in the axial direction and the cigarette bin.

[0045] Optionally, the second thermal insulation gap has a thickness of 0.2-10 mm.

[0046] Optionally, the thickness of the first thermal insulation gap is 0.1-10 mm.

[0047] Optionally, a plurality of protrusion structures are provided on the outer wall of the inner shell or the inner wall of the outer shell, for contact and position limiting between the inner shell and the outer shell.

[0048] Optionally, there are 2 or more bump structures.

[0049] Optionally, the outer wall of the inner shell has four surfaces, and the four surfaces are all provided with the convex point structures, or the inner wall of the outer shell has four surfaces, and the four surfaces of the inner wall are all provided with the convex point structures.

[0050] Optionally, the convex point structure is strip-shaped or dot-shaped, and the contact area between each convex point structure and the outer shell is not less than 0.5 mm 2 .

[0051] Optionally, the inner shell comprises a front inner shell and a rear inner shell, and the front inner shell and the rear inner shell are butted together to form a cavity for accommodating and clamping the cigarette bin and other components in the shell body.

[0052] Optionally, the aerosol generating device satisfies one or more of the following conditions (1) to (4):

[0053] (1) The first thermal insulation member is made of PEEK or stainless steel;

[0054] (2) The secondary thermal insulation component is made of PEEK or stainless steel;

[0055] (3) The material of the inner shell is one or more of ABS, PC, and PEEK;

[0056] (4) The outer shell is made of one or more materials selected from aluminum alloy, zinc alloy, PC, ABS, and nylon.

[0057] Optionally, the cigarette chamber is formed by extending multiple ends, and the multiple sections include a heating chamber and an extension chamber with an inner diameter equal to the heating chamber, one end of the extension chamber is axially aligned and connected to one end of the heating chamber, and the other end of the extension chamber is directly connected to the outside of the shell.

[0058] Optionally, the extension bin includes an extension tube and an insulation tube located between the extension tube and the heating bin along the axial direction, and opposite ends of the insulation tube along the axial direction are respectively connected to the heating bin and the extension tube ends.

[0059] Optionally, the extension tube extends along the axial direction to the bottom of the shell.

[0060] Optionally, the aerosol generating device further comprises an upper end cover, one end of which is connected to the upper end of the heating chamber, and the other end of which extends and is connected to the top of the shell so that the aerosol generating matrix can be delivered from the upper end cover.

[0061] Optionally, the insulation tube constitutes a lower end cover, and together with the upper end cover, clamps the heating chamber.

[0062] Optionally, there is a second thermal insulation gap between the outer wall of the heat generating bin and the inner wall of the first thermal insulation component, the upper end cover and the lower end cover are located between the heat generating bin and the first thermal insulation component in the circumferential direction, and the two ends of the second thermal insulation gap in the axial direction are sealed by sealing components.

[0063] Optionally, the sealing element is silicone.

[0064] Optionally, the first thermal insulation member and the secondary thermal insulation member are sleeved on the outer circumference of the heat generating chamber, and the extension chamber extends axially relative to the first thermal insulation member and the secondary thermal insulation member.

[0065] Optionally, the extension bin is located inside the shell.

[0066] The present invention provides a shell component that can be used for an aerosol generating device, including a shell and a button mechanism, the shell including an inner shell and an outer shell, the button mechanism including an outer button part and an inner button part, the outer shell and the inner shell are respectively provided with a first through hole and a second through hole arranged opposite to each other along a first installation direction, the inner button part is at least partially embedded in the second through hole, the outer shell is sleeved on the outside of the inner shell, the outer button part passes through the first through hole and the second through hole along the first installation direction and docks with the inner button part, and the button mechanism constitutes a pin lock structure that prevents the outer shell from detaching from the inner shell.

[0067] The pin-lock button design can lock the shell after installation, which plays a role in assisting installation. At the same time, it can avoid gluing operations, cancel the gluing pressure holding time, improve production line efficiency, and increase the degree of automation.

[0068] Optionally, the outer shell is sleeved on the inner shell along a second installation direction, and the first installation direction is not parallel to the second installation direction.

[0069] Optionally, the first installation direction is substantially perpendicular to the second installation direction.

[0070] Optionally, a portion of the end surface of the inner button portion is covered by the inner side of the inner shell, and another portion is exposed through the second through hole.

[0071] Optionally, the outer button portion passes through the first through hole and the second through hole along the first installation direction to be engaged with the shell or the inner button portion to prevent the outer button portion from escaping from the outer shell.

[0072] Optionally, the outer button portion has a first clamping portion for clamping, and the housing or the inner button portion is provided with a second clamping portion corresponding to and matching the first clamping portion.

[0073] Optionally, the second clamping portion is located on an inner side of the second through hole.

[0074] Optionally, the outer button portion has an open end, the open end is connected to the inner button portion, and the first clamping portion is provided at the open end.

[0075] Optionally, the first clamping portion is a clamping hook, the second clamping portion is a groove matching the clamping hook, and the clamping hook is an elastic wall clamping hook.

[0076] Optionally, the inner button part also includes a first light guide component, the first light guide component has a plurality of independent first light guide parts, the plurality of first light guide parts correspond one-to-one to the plurality of light-emitting elements in the shell, the plurality of first light guide parts are spaced apart from each other by passing through the inner button part, and the outer button part is provided with a plurality of light-transmitting holes corresponding to each of the first light guide parts.

[0077] Optionally, the external button part also includes a second light guide component, the second light guide component has a plurality of independent second light guide parts, the plurality of second light guide parts correspond one-to-one to the plurality of first light guide parts, and the second light guide part is used to transmit light from the first light guide part to the corresponding light-transmitting hole.

[0078] Optionally, the outer button portion is connected to the inner button portion without a gap, so that the outer button portion and the inner button portion move synchronously.

[0079] Optionally, the gap-free connection is a magnetic connection, a tight-fitting connection, a hook connection or a glue-dot connection.

[0080] Optionally, the button mechanism further includes an inner magnetic body and an outer magnetic body that attract each other, the inner magnetic body is fixed to the inner button part, and the outer magnetic body is fixed to the outer button part, and the inner magnetic body and the outer magnetic body are connected to each other so that the outer button part is docked with the inner button part.

[0081] Optionally, the maximum protruding height of the outer surface of the outer button portion relative to the outer surface of the outer shell does not exceed 0.5 mm, and the maximum sunken depth does not exceed 2 mm.

[0082] Optionally, an outer surface of the outer button portion is substantially flush with an outer surface of the outer shell.

[0083] Optionally, an aerosol generating device is provided for heating an aerosol generating substrate, comprising any one of the above-mentioned housing components. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] Figure 1 A schematic diagram showing the structure of an end plug according to a specific embodiment of the present invention is shown;

[0085] Figure 2 A cross-sectional schematic diagram showing an end plug according to a specific embodiment of the present invention;

[0086] Figure 3 A schematic diagram of the structure of a channel blocking component according to a specific embodiment of the present invention is shown;

[0087] Figure 4A to Figure 4D A schematic diagram showing a process of installing an end plug into a channel according to a specific embodiment of the present invention;

[0088] Figure 5A to Figure 5D A schematic diagram showing a process of removing an end plug from a channel according to a specific embodiment of the present invention;

[0089] Figure 6 A schematic cross-sectional view of the bottom surface of an aerosol generating device according to a specific embodiment of the present invention is shown;

[0090] Figure 7 A cross-sectional schematic diagram showing a specific embodiment of the present invention including a cigarette bin and a vacuum insulation member;

[0091] Figure 8 An exploded view showing a specific embodiment of the present invention including a cigarette bin and a vacuum insulation member;

[0092] Fig. 9 An exploded view showing a specific embodiment of the present invention including a cigarette bin and a portion of a heat insulation assembly;

[0093] Fig.10 A schematic diagram showing the appearance and structure of an aerosol generating device according to a specific embodiment of the present invention is shown;

[0094] Fig.11 A schematic cross-sectional view of an aerosol generating device according to a specific embodiment of the present invention is shown. Figure 1 ;

[0095] Fig.12 A schematic diagram of the key mechanism structure of a specific embodiment of the present invention is shown;

[0096] Fig.13 A schematic diagram showing the structure of the key mechanism of a specific embodiment of the present invention from a rear-view angle;

[0097] Fig.14 A schematic cross-sectional view of an aerosol generating device according to a specific embodiment of the present invention is shown. Figure 2 ;

[0098] Fig.15 Schematic diagram showing the installation of the housing assembly of the aerosol generating device according to a specific embodiment of the present invention Figure 1 ;

[0099] Fig.16 Schematic diagram showing the installation of the housing assembly of the aerosol generating device according to a specific embodiment of the present invention Figure 2 .

[0100] Reference numerals:

[0101] End plug 1, front end 11, rear end 12, first magnetic body 13, first threaded portion 14, air guide gap 15, chamfer 16, cigarette bin 2, plugging end 21, second magnetic body 22, meshing portion 23, heating bin 24, extension bin 25, extension tube 251, insulation tube 252, upper end cover 26, shell 3, inner shell 31, outer shell 32, first insulation gap 33, convex point structure 34, front inner shell 311, rear inner shell 312, first through hole 35, second through hole 36, first outer shell 321, second outer shell 322 , vacuum insulation 41, secondary insulation 42, second insulation gap 43, second sealing 44, second sealing 45, heating chamber upper positioning sleeve 46, lower end cover sleeve 47, circuit board 51, battery 52, battery fixing cotton 53, inner button part 61, outer button part 62, hook 63, groove 64, open end 621, first light guide component 65, first light guide part 651, light transmission hole 622, through hole 611, second light guide component 66, second light guide part 661, outer magnetic body 623, inner magnetic body 612, cigarette 7 DETAILED DESCRIPTION

[0102] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0103] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0104] In the description of this embodiment, it should be noted that the terms "upper", "lower", "high", "low", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the invention.

[0105] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0106] In addition, the directions "axial", "circumferential", "radial" and the like mentioned in the present invention are applicable to any component in the device of the present invention. "Axial" corresponds to the extension direction of the device and internal components, "circumferential" corresponds to the outer or inner circumference direction of the device and internal components, and "radial" is relative to "axial" and is "perpendicular to the axial direction".

[0107] The "aerosol generating substrate" mentioned in the present invention refers to a substrate that can release volatile compounds that can form an aerosol when the aerosol forming substrate is heated. The aerosol generating substrate of the present invention can be solid or liquid. For example, the liquid aerosol generating substrate can contain water, solvents, ethanol, plant extracts and natural or artificial flavorings. The aerosol generating substrate can also be a paste material, a porous material pouch including an aerosol generating substrate, or loose tobacco mixed with a gelling agent or adhesive, which can contain common atomizers such as glycerol. Alternatively, the aerosol generating substrate can include tobacco-containing materials or non-tobacco materials, or it can contain both tobacco materials and non-tobacco materials, and non-tobacco materials can be, for example, flavors that can be volatilized by heating or not. The aerosol generating substrate also includes an atomizer, such as glycerol or propylene glycol. The aerosol generating substrate can also include additional ingredients, such as nicotine or flavor extracts. For a solid aerosol generating substrate, a structure that can form a cigarette cartridge or a cigarette stick is contained in a smoking device, and further made into a form of a heated cigarette, which also includes a tobacco substrate part and a filter part.

[0108] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0109] like Figure 1-3 As shown, the present invention provides a channel blocking component that can be used in an aerosol generating device, the aerosol generating device includes a channel with an insertion end, and the channel blocking component includes an end plug 1. The channel may be, for example, an airway or a storage channel. In the present embodiment, the channel is, for example, a cigarette bin 2 for storing cigarettes 7. The cigarette bin 2 has an insertion end 21, the end plug 1 has a front end 11 and a rear end 12, the direction in which the end plug 1 is inserted into the cigarette bin 2 is from its front end 11 from the insertion end 21 into the cigarette bin 2, and the rear end 12 is arranged toward the outside of the insertion end 21. That is, after the end plug 1 is inserted into place, the rear end 12 is arranged toward the outside of the cigarette bin 2 relative to the front end 11. In the present embodiment, the direction from the rear end 12 to the front end 11 is consistent with the axial direction of the end plug 1, and the axial direction, for example Figure 3 The x direction in the middle is also consistent with the insertion direction of the end plug 1 in the axial direction. A first magnetic body 13 is provided on the end plug 1, and a second magnetic body 22 is provided on the channel. The first magnetic body 13 and the second magnetic body 22 have the same polarity. During the process of inserting the end plug 1 into the channel, the first magnetic body 13 moves away from the insertion end 21 and passes over the second magnetic body 22 in the axial direction. Therefore, in the initial stage of the end plug 1 being inserted into the channel, the end plug will be subjected to a certain repulsive force. As the insertion goes deeper, after the first magnetic body 13 passes over the second magnetic body 22 in the axial direction, the repulsive force between the first magnetic body and the second magnetic body will push the end plug 1 into the channel. When the end plug 1 is removed, the channel blocking component will have the function of automatically popping out.

[0110] Further, between the front end 11 and the rear end 12, a first magnetic body 13 is provided on the end plug 1. Specifically, a first magnetic body 13 is provided on the outer peripheral wall of the end plug 1. The number of the first magnetic bodies 13 can be one or more. When there are multiple first magnetic bodies 13, their setting positions are the same in the axial direction of the end plug 1, that is, the multiple first magnetic bodies 13 are not misaligned in the axial direction. It can be understood that when the end plug is cylindrical, the multiple first magnetic bodies 13 are located on the same circumferential line. A second magnetic body 22 is provided on the inner peripheral wall of the cigarette bin 2. The second magnetic body 22 can be one or more. When there are multiple second magnetic bodies 22, their setting positions are the same in the axial position of the cigarette bin 2, that is, the multiple second magnetic bodies 22 are not misaligned in the axial direction. It can be understood that when the cigarette bin is cylindrical, the multiple second magnetic bodies 22 are located on the same inner circumferential line of the cigarette bin.

[0111] In the above embodiment, the polarities of the plurality of first magnetic bodies are different, and correspondingly, the polarities of the plurality of second magnetic bodies are different, but the polarities of the first magnetic body and the corresponding second magnetic body in the channel are the same. For example, if there are two first magnetic bodies, one of grade S and one of grade N, then two second magnetic bodies, one of grade S and one of grade N, can be set in the channel. The user inserts the end plug in a specific orientation, the first magnetic body of grade S corresponds to the second magnetic body of grade S, and the first magnetic body of grade N corresponds to the second magnetic body of grade N. As the end plug is inserted deeper, the end plug will still be subjected to the repulsive force of pushing out first, and then the propulsive force of pushing in.

[0112] Preferably, the first magnetic bodies 13 have the same polarity facing outwards. Since the first magnetic bodies 13 are fixed on the outer wall of the end plug 1, the first magnetic bodies 13 can have the same polarity facing outwards, for example, all of them are S class. The second magnetic bodies 22 have the same polarity. Since the second magnetic bodies 22 are fixed on the inner wall of the cigarette bin 2, the first magnetic bodies 13 can have the same polarity, for example, all of them are S class. In this embodiment, the first magnetic bodies 13 have the same polarity relative to the second magnetic bodies 22, for example, all of them are S class, or all of them are N class. In this embodiment, in the axial direction, the distance between the first magnetic body 13 and the rear end 12 is greater than the distance between the second magnetic body 22 and the insertion end 21.

[0113] refer to Figures 4A to 4D According to the configuration of the end plug 1 and the structure in the channel in the above embodiment, when the user loads the end plug 1 into the cigarette bin 2, since the first magnetic body 13 and the second body 22 have the same polarity, the end plug will be subjected to the following conditions at the initial loading stage: Figure 4B The rightward magnetic field force shown in FIG. 1 is opposite to the insertion direction and is a repulsive force. As the first magnetic body 13 gradually approaches the second magnetic body 22, until the first magnetic body 13 passes over the second magnetic body 22 and gradually moves away from the second magnetic body 22 and the insertion end 21, the first magnetic body 13 will be subjected to the following Figure 4DThe magnetic field force is in the left direction as shown. At this time, the magnetic field force is in the same direction as the insertion direction. The user will feel a propulsion force to promote the end plug 1 to be installed in place.

[0114] refer to Figures 5A to 5D When the user removes the end plug 1, the first magnetic body 13 on the end plug 1 is first subjected to the following Figure 5A As the first magnetic body 13 gradually approaches the second magnetic body 22, until the first magnetic body 13 passes over the second magnetic body 22 and gradually moves away from the second magnetic body 22 and approaches the insertion end 21, the first magnetic body 13 will be subjected to the following Figure 5C The magnetic field force is in the right direction as shown. At this time, the magnetic field force is in the same direction as the removal direction. The user will feel a propulsion force to promote the removal of the end plug 1.

[0115] For example, when the second magnetic body 22 is arranged on the inner wall of the channel, the distance between the first magnetic body 13 and the rear end 12 is set to be greater than the distance between the second magnetic body 22 and the insertion end 21. After the end plug 1 is inserted into the cigarette bin 2, the first magnetic body 13 has passed the second magnetic body 22 and is located at a position farther away from the insertion end 21 relative to the second magnetic body 22, that is, it is located further inside the cigarette bin 2 than the second magnetic body 22. Therefore, after the end plug 1 is inserted into place, the end plug 1 is always pushed into the cigarette bin by the second magnetic body 22. This thrust into the cigarette bin 2 can be felt by the user when inserting the end plug 1, and can also use the magnetic field force to keep the end plug 1 in the cigarette bin 2 after the end plug 1 is inserted.

[0116] Furthermore, a first threaded portion 14 is provided on the outer peripheral wall of the end plug 1, and an engaging portion 23 corresponding to the position and engaging with the first threaded portion 14 is provided on the inner wall of the tobacco chamber 2, so that when the end plug 1 is installed in the tobacco chamber 2, the end plug 1 can be screwed into or out of the tobacco chamber 2 through a threaded connection, thereby realizing a detachable connection.

[0117] Furthermore, in the above embodiment, the first threaded portion 14 is located between the first magnetic body 13 and the rear end 12. After the end plug 1 is partially inserted into the cigarette bin 2, it reaches the starting position where the first threaded portion 14 and the engagement portion 23 are engaged, and then the user can complete the installation of the end plug 1 by screwing it in.

[0118] In the above embodiments, the end plug 1 is inserted into the cigarette chamber 2 from the insertion end 21 at its front end 11. As the insertion proceeds, the first threaded portion 14 reaches the starting position of the screwed-in meshing portion 23. At this time, the first magnetic body 13 is axially located at the first position, and the first position is closer to the insertion end 21 than the second magnetic body 22 is to the insertion end 21, that is, the first magnetic body 13 is still gradually approaching the second magnetic body 22 and has not passed the second magnetic body 22. At this time, the user starts to tighten the screw, and at the end position when the first threaded portion 14 is completely screwed into the meshing portion 23, that is, when the tightening action is completed, the first magnetic body 13 moves axially to the second position, and the second position is farther from the insertion end 21 than the second magnetic body 22 is from the insertion end 21, which means that the first magnetic body 13 has passed the second magnetic body 22, that is, Figure 4D Status in.

[0119] The above-mentioned first position and second position respectively represent the positions before and after the first magnetic body 13 and the second magnetic body 22 meet during the installation process of the end plug 1. In the process of the first magnetic body 13 moving from the first position to the second position, the installation process is a process in which the magnetic field force changes from resistance to propulsion, and the resistance gradually increases. After the first magnetic body 13 and the second magnetic body 22 meet, it becomes a propulsion force. In this process, the user completes it by tightening the thread, so he will not feel the obstruction very obviously, and the screw-in process is also more convenient. After it is fully screwed in, the end plug 1 will be subject to a pushing force, and the user will feel the feeling of the end plug 1 being pushed into place.

[0120] Using the above embodiment, when removing the end plug 1, the user first rotates the end plug to rotate it out, so that the first magnetic body 13 moves from the second position to the first position. In this process, the end plug 1 will be subject to resistance in the opposite direction of the removal, and the resistance gradually increases. It will not become a propulsion force for the removal until the first magnetic body 13 and the second magnetic body 22 meet. In this process, the user completes it by rotating it out, so he will not feel the obstruction very obviously. When the rotation action is completed, the end plug 1 has been subjected to a propulsion force consistent with the removal direction, which is equivalent to reminding the user that the rotation action has ended and the end plug 1 can be directly pulled out. At the same time, the end plug 1 will also have an automatic pop-up effect when it is pulled out.

[0121] Therefore, the arrangement of the above embodiment makes it more convenient for users to insert and remove the end plugs.

[0122] In the above embodiment, the pitch of the first threaded portion 14 is greater than or equal to the distance between the first position and the second position. The so-called pitch is the axial distance advanced by one rotation. In this embodiment, the pitch of the first threaded portion 14 is set to be greater than or equal to the distance between the first position and the second position, so that the user can complete the movement of the first magnetic body 13 from the first position to the second position when the end plug is rotated one circle or less. Compared with the action of rotating several circles to complete this movement process, it is more convenient and comfortable to use.

[0123] The specific settings of the first position and the second position can be set according to actual needs, as long as the second magnetic body 22 is located between the first position and the second position in the axial direction. In this embodiment, the first position can be set to the position where the first magnetic body 13 and the second magnetic body 22 are about to meet during the installation of the end plug 1. Figure 4B , that is Figure 4B The second position is set to the position where the left end of the first magnetic body 13 is connected to the right end of the second magnetic body 22, and the second position is set to the position where the second magnetic body 13 is just about to leave the second magnetic body 22. Figure 4C , that is Figure 4C The left end of the first magnetic body 13 and the left end of the second magnetic body 22 completely overlap in the radial direction. That is to say, the distance between the first position and the second position in this embodiment is just the projection length of the second magnetic body 22 in the axial section. In combination with the above embodiment, the thread pitch P can be set to P≥ the projection length of the axial section of the second magnetic body.

[0124] In the above embodiment, when the threaded connection is loose, the magnetic field force can also ensure that the end plug 1 is pushed into the cigarette bin 2 in place without being disengaged. There is a mechanical locking structure between the end plug 1 and the channel, which can limit the freedom of the end plug to withdraw from the outside of the channel. The locking structure has the reciprocating detachability. And the non-deformation locking contact form is used to prevent the locking performance from being reduced due to wear after multiple disassembly.

[0125] In the above embodiments, the number of the first magnetic bodies may be multiple, preferably 2 to 4, distributed at equal angles along the cross section. When the number of the first magnetic bodies is 2, they may be arranged symmetrically on both sides of the end plug. Accordingly, it is preferred that the number of the second magnetic bodies is the same as the number of the first magnetic bodies, and the setting positions and distribution also correspond to those of the first magnetic bodies. The first magnetic body may be installed by, for example, snap-fitting, tight fitting, bonding, secondary injection molding, etc., and assembled on the end plug. The second magnetic body may also be installed in the channel in a fixed connection with the channel in the above manner.

[0126] Preferably, in each of the above embodiments, the first threaded portion is an external thread, and the meshing portion is an internal thread. Further, the first threaded portion and the meshing portion are double-start threads or multi-start threads. Further, the first threaded portion is a partial thread, and the meshing portion is a full thread.

[0127] In the above embodiments, reference Fig.11 An air-guiding gap 15 is provided between the end plug 1 and the channel. Specifically, for example Figure 1 At the position indicated in the figure, a part of the side wall of the end plug 1 is cut off in the axial direction to form a chamfer 16, so that after the end plug 1 is inserted into the cigarette bin 2, an air guide gap 15 is formed between the end plug 1 and the cigarette bin, so that the air flow can flow through the air guide gap and penetrate the entire axial direction of the cigarette bin 2. Fig.11 The direction indicated by the middle arrow is the flow direction of the airflow through the air guide gap 15. Further, at least a portion of the outer peripheral wall of the end plug 1 forms the above-mentioned air guide gap 15, and the rest of the outer peripheral wall is sealed and connected to the cigarette bin 2. For example, in FIG6 , the other circumferential parts except the air guide gap 15 are in a sealed state, thereby preventing condensate and residues in the cigarette bin 2 from falling out.

[0128] The present invention also provides an aerosol generating device, comprising the channel blocking components of the above-mentioned embodiments, wherein the channel in the blocking component serves as a cigarette bin in the aerosol generating device, and can be used to accommodate and heat an aerosol generating substrate. Thus, by providing a detachable end plug, the end plug can be removed for cleaning when the cigarette bin needs to be cleaned, and the end plug can be inserted during use, thereby limiting the position of the aerosol generating substrate, such as a cigarette, in the cigarette bin.

[0129] Another advantage of the aerosol generating device in the above embodiment is that, for cigarettes of different lengths, existing heated smoking utensils need to be adaptively improved, that is, one type of smoking utensils matches one length of cigarettes. In the above embodiment, by setting the end plug, for longer cigarettes, a shorter end plug can be used, and for shorter cigarettes, a shorter end plug can be replaced without replacing the entire smoking utensils. Alternatively, in other embodiments, the end plug may not be replaced, but a telescopic end plug may be used, and the length of the end plug may be adjusted to accommodate cigarettes of different lengths, for example, by setting a thread on the end plug to adjust the length of the end plug, or by using an elastic member to snap-fit.

[0130] refer to Figure 7-10 The aerosol generating device of the present invention comprises a housing 3 and a cigarette cartridge 2 located in the housing 3. The cigarette cartridge 2 is used to contain and heat the aerosol generating substrate and is formed by extending through multiple end sections. The cigarette cartridge 2 has an axial direction and a radial direction. The axial direction, for example Figure 7 The x direction in the radial direction is perpendicular to the axial direction, for example Figure 7The cigarette bin 2 extends in the axial direction and directly passes through the outside of the housing 3. Along the axial direction, the cigarette bin 2 has the same radial size. That is, the entire cigarette bin 2 does not have a part with a changed inner diameter, and extends in the axial direction with a constant diameter.

[0131] In the prior art, the cigarette bin is provided with a portion with a variable diameter to limit the position of the cigarettes contained therein, but such a variable diameter setting will cause a sanitary dead corner and is not easy to clean. The inner diameter of the cigarette bin 2 of the present invention is unchanged, and the entire cigarette bin 2 is straight from top to bottom and connected to the outside of the shell 3. Accordingly, the end plug 1 is provided at the bottom to limit the position of the cigarettes, and at the same time, the cigarette bin 2 is properly blocked to prevent the residues such as cigarette ash from falling.

[0132] The cigarette bin 2 is formed by extending through multiple sections of end connections, that is, the multiple sections are disconnected independently of each other rather than being integrally formed, and the multiple sections are connected through end connections to form a connection, and the multiple sections have the same inner diameter, which will not change the inner diameter of the cigarette bin formed as a whole, and the multiple sections of end connections and extensions can play a role in heat insulation. In this embodiment, the multiple sections include a heating bin 24 and an extension bin 25 having the same inner diameter as the heating bin, one end of the extension bin 25 is axially aligned and connected with one end of the heating bin 24, and the other end of the extension bin 25 is directly connected to the outside of the housing 3.

[0133] Compared with the integral molding of the heating chamber 24 and the extension chamber 25 , the terminal connection between the heating chamber 24 and the extension chamber 25 can effectively reduce the heat transfer from the heating chamber 24 to the extension chamber 25 , which can avoid overheating of the extension chamber 25 on the one hand and reduce heat loss in the heating chamber 24 on the other hand.

[0134] Furthermore, the extension chamber 25 includes an extension tube 251 and an insulation tube 252 axially located between the extension tube 251 and the heating chamber 24. The two opposite ends of the insulation tube 252 axially are connected to the heating chamber 24 and the extension tube 251. The heating chamber 24, the insulation tube 252 and the extension tube 251 are connected to form a straight pipeline to form the cigarette chamber 2. The cigarette chamber 2 can be cylindrical or prismatic. By terminating the insulation tube 252 and the extension tube 251, the heat transfer path is cut off twice again from the heating chamber 24 to the insulation tube 252 and then to the extension tube 251, which further reduces the heat transfer.

[0135] In the above embodiment, the extension tube 251 extends axially to the bottom of the housing 3, so that the entire cigarette bin 2 extends to the bottom of the housing 3. In this way, the entire cigarette bin 2 is completely isolated from other components (such as circuit boards, batteries, etc.) in the housing 3 through the peripheral wall, so that during the use of the aerosol generating device, the ash, condensate or tobacco residue formed in the cigarette bin 2 will only fall to the outside of the housing 3 through the bottom of the cigarette bin 2, and will not fall into other components in the housing 3 to cause corrosion. The end plug 1 is located at the bottom of the housing 3, inserted from the extension tube 251 and is detachable. An air guide gap 15 is set on the side wall of the end plug 1 and between the housing 3 and the cigarette bin 2 for air flow.

[0136] In the above embodiments, the specific heat capacity of the material of the inner wall of the heat insulation tube 252 is greater than the specific heat capacity of the material of the inner wall of the heating chamber 24. The heating chamber 24 is a component for heating the aerosol-generating matrix, and its inner wall material has good thermal conductivity. For example, the heating chamber 24 can be a metal tube, and its inner wall can be made of materials such as aluminum, stainless steel, Permalloy, copper, etc. The outer wall of the heating chamber 24 contains a heating layer, which can be a resistance heating mesh / wire, a thick film heating layer or other heating coating. The inner wall of the heating chamber is smooth and can further be a straight pipe. The material of the inner wall of the heat insulation tube 252 is different from that of the inner wall of the heating chamber 24. The heat insulation tube 252 has a larger specific heat capacity, so that the extension tube 251 absorbs less heat, and the temperature of the extension tube 251 is lower. On the one hand, it avoids the extension tube 251 from having a higher temperature and causing the bottom temperature of the shell 3 to be higher. On the other hand, it can also reduce the heat loss of the heating chamber 24. Specifically, the material of the inner wall of the heat insulation tube is selected from one of PEEK, polyimide, ceramic or rubber coating, and these materials are high temperature resistant materials.

[0137] The aerosol generating device in each of the above embodiments further includes an upper end cover 26, one end of which is connected to the upper end of the heating chamber 24, and the other end extends and is connected to the top of the housing 3, and the aerosol generating matrix can be sent from the upper end cover 26 into the heating chamber 24 to be heated. The filter end of the aerosol generating matrix can extend from the upper end cover 26 for the user to inhale. In this embodiment, the insulation tube 252 constitutes the lower end cover, and the heating chamber 24 is clamped together with the upper end cover 26. In addition, the material of the upper end cover 26 and the lower end cover is selected from one of PEEK, polyimide, ceramic or encapsulation treatment, which can play a role in heat insulation.

[0138] refer to Figure 7-15 The present invention proposes an aerosol generating device, including a cigarette cartridge 2 and a heat insulation component, wherein the cigarette cartridge 2 is used to contain and heat an aerosol generating matrix. The heat insulation component includes a first heat insulation component, a secondary heat insulation component 42 and a shell 3, wherein the first heat insulation component is, for example, a vacuum heat insulation component 41. The shell 3 serves as both the outer packaging part of the aerosol generating device and the heat insulation function. Furthermore, the shell 3 includes an inner shell 31 and an outer shell 32. Figure 7 and Figure 8As shown, the vacuum insulation 41 is sleeved on the outer periphery of the cigarette bin 2, the secondary insulation 42 is sleeved on the outer periphery of the vacuum insulation, and the secondary insulation 42 is embedded in the inner shell 31, which is equivalent to being wrapped and insulated by the inner shell 31. The outer shell 32 is sleeved on the outer periphery of the inner shell 31, and there is a first insulation gap 33 between the outer shell 32 and the inner shell 31. Figure 6 As shown in FIG. 1 , the outer shell 32 entirely wraps the inner shell 31 , and a first heat-insulating gap 33 exists between the inner wall of the outer shell 32 and the outer wall of the inner shell 31 .

[0139] The existing heat insulation method for smoking devices will make the shell larger in size, so that there is a larger gap between the shell and the heating chamber, forming a thicker air layer, thereby effectively blocking the heat. The present invention seeks to achieve good heat insulation while meeting the miniaturization of the aerosol generating device. In addition, simplifying the installation method and not excessively increasing the complexity of the smoking device structure are also improvement directions of the aerosol generating device of the present invention.

[0140] To this end, the aerosol generating device of the above embodiment combines five parts of the structure to achieve thermal insulation. (1) The vacuum insulation component 41 is wrapped around the outer periphery of the cigarette bin 2, and the interior of the vacuum insulation component 41 is in a vacuum state, which can achieve excellent thermal insulation effect; (2) The vacuum insulation component 41 is wrapped by the secondary thermal insulation component 42, which further enhances the thermal insulation effect; (3) Taking advantage of the structural characteristics of the shell itself, the inner shell used to fix the components in the shell 3 is also used as one of the thermal insulation components to wrap the cigarette bin 2, the vacuum insulation component 41, and the secondary thermal insulation component 42; (4) The outermost outer shell 32 of the shell 3 can still achieve thermal insulation effect; (5) A first thermal insulation gap is set between the outer shell 32 and the inner shell 31, that is, the air layer can also act as a good thermal insulator. Practice has proved that compared with the method of simply using an air layer as a heat insulation layer or using all rigid heat insulation components to nest layers for heat insulation, the present embodiment combines vacuum heat insulation, rigid heat insulation component insulation and air layer heat insulation to achieve better heat insulation effect under the same heat insulation volume. Compared with the heat insulation method of simply increasing the air heat insulation layer or simply increasing the number of heat insulation components nested, the heat insulation component of the present embodiment has a small volume, a simple structure and is more convenient to install.

[0141] In the existing smoking device, a bracket is used in the shell to fix the components inside the shell. In this embodiment, the inner shell can be used to fix the components. At the same time, the wrapping design can block the heat of the cigarette bin and separate the internal battery and circuit board from the cigarette bin 2, achieving multiple goals at one stroke. If the heat insulation is simply performed by increasing the number of heat insulation pieces wrapping the cigarette bin, the volume of one side of the cigarette bin will be larger, and there will be too much space on the other side that is not used, making the internal components of the entire smoking device unevenly distributed and the structure not compact enough.

[0142] The aerosol generating device of the above-mentioned embodiment has excellent thermal insulation effect. The key point in exploring the reason is that the above-mentioned five-part structure is combined to make the heat conduction path discontinuous. Specifically, the heat from the cigarette bin must first pass through the vacuum insulation component, pass through the vacuum structure, and then pass through the secondary insulation component and the inner shell. Since the secondary insulation component and the vacuum insulation component, as well as the inner shell and the secondary insulation component are disconnected and not an integrally formed structure, the heat transfer is discontinuous. Afterwards, the air layer between the inner shell and the outer shell serves as another transfer medium to further reduce the heat transfer efficiency, and is finally blocked by the outer shell, preventing most of the heat transfer. The combination of the five-part structure makes the heat transfer medium discontinuous, and the multiple changes in the transfer medium reduce the heat transfer efficiency, enhance the thermal insulation effect, and slow down the rate of increase in the surface temperature of the outer shell.

[0143] Further, continue to refer to Figure 7 There is a second insulation gap 43 between the inner wall of the vacuum insulation component 41 and the outer wall of the cigarette bin 2, that is, an air layer is set between the vacuum insulation component 41 and the cigarette bin 2 to block heat. Furthermore, the second insulation gap 43 is closed at both ends along the axial direction. In this way, the second insulation gap 43 acts as an air layer, and the air flow in it is reduced, so that the circulation of a large amount of air will not take away the heat in the cigarette bin 2, thereby reducing heat loss. In this embodiment, the closure of the two ends of the second insulation gap 43 can be to appropriately block the openings at both ends to reduce the circulation of air. Preferably, the two ends of the second insulation gap 43 are completely closed, that is, in a sealed state, so that air cannot circulate in the second insulation gap 43. The completely sealed second insulation gap 43 can play a role in heat insulation and keep the cigarette bin warm. Specifically, sealing members can be set at the two opposite ends of the vacuum insulation component 41 along the axial direction and the cigarette bin 2, for example Figure 7 As shown, a first sealing member 44 is provided to block an upper port of the second thermal insulation gap 43 , and a second sealing member 45 is provided to block a lower port of the second thermal insulation gap 43 .

[0144] The arrangement of the heat insulation assembly in the above embodiment enables the aerosol generating device to achieve excellent heat insulation effect without having to be large in size. The thickness of the air layer in the traditional smoking device is relatively large, while the thickness of the first heat insulation gap of the present invention can be 0.1-10mm, the thickness of the second heat insulation gap can be 0.2-10mm, and the sizes of the first heat insulation gap and the second heat insulation gap can also ensure the heat insulation effect within the above range. Preferably, the thickness of the first heat insulation gap is 0.2-5mm, and the thickness of the second heat insulation gap is 0.3-6mm.

[0145] The first thermal insulation gap 33 is formed by the outer shell 32 being sleeved on the outer periphery of the inner shell 31, and the volume of the outer shell 32 being larger than the volume of the inner shell 31. Furthermore, a plurality of convex structures are provided on the outer wall of the inner shell or the inner wall of the outer shell, so as to achieve contact and position limiting between the inner shell and the outer shell. Figure 6 , the inner shell 31 is provided with a plurality of convex structures 34 on the outer wall as contacts for the outer shell 32 to contact and limit. Through the setting of the convex structure 34, the freedom of the inner shell 31 in the four directions of front, back, left, right and right in the outer shell 32 space can be limited to form a stable assembly position. In addition, the convex structure 34 also ensures that the first thermal insulation gap 33 is retained between the inner shell 31 and the outer shell 32. Considering the stability of contact positioning, the convex structure of this embodiment can be 2, or more than 2, and further 4 or more. The convex structure can be selectively set on the four faces of the outer wall of the inner shell 31 or the four faces of the inner wall of the outer shell, and the convex structure can be selected to be set on two or more faces of the outer wall of the inner shell, and preferably the convex structure 34 is distributed on the four faces of the outer wall of the inner shell 31. Alternatively, the convex structure can also be set on the four faces of the inner wall of the outer shell.

[0146] In the above embodiment, the convex structure 34 is in the shape of strips or dots, and the contact area between each convex structure 34 and the outer shell 32 is not less than 0.5 mm. 2 .

[0147] In the above embodiments, the inner shell 31 includes a front inner shell 311 and a rear inner shell 312, and the front inner shell 311 and the rear inner shell 312 are connected to form a cavity for accommodating and clamping the cigarette bin and other components in the shell. The inner shell 31 is the installation base of the internal components, and is used to accommodate the cigarette bin 2 and other components, such as the vacuum insulation 41, the secondary insulation 42, the circuit board 51, the inner button 61, the battery 52, the battery fixing foam 53 and other components. After the inner shell 31 is locked, all the internal components can completely limit the degree of freedom and achieve complete positioning.

[0148] The inner shell 31 wraps and installs the cigarette bin 2, and forms a whole body to be installed in the outer shell 32. After the outer shell 32 and the inner shell 31 are in contact through the convex structure 34, the inner shell 31 is constrained by the inner wall of the outer shell 32 and is clamped and pressed during installation, which can effectively control the consistency of the installation gap and eliminate the problem of inconsistent gaps caused by thermal expansion and contraction of materials and processing stress. After the inner shell 31 and the outer shell 32 are assembled, the convex structure plays a role in locking the assembly relationship.

[0149] In the above embodiments, the material of the vacuum insulation component and the secondary insulation component is preferably a high temperature resistant insulation material, for example, PEEK or stainless steel. The material of the inner shell can be ABS, PC or PEEK, or a mixture of ABS, PC and PEEK, and glass fiber grades can also be added to manufacture the inner shell. The outer shell contains at least one material, which can be metal, such as aluminum alloy, zinc alloy, etc.; it can also be made of plastic, such as PC, ABS, nylon, etc., one or more mixed materials and glass fiber grades, and can also be made of plastic + metal through socket connection, plastic coating, plastic coating secondary injection molding and other processes.

[0150] In the above embodiments, the cartridge 2 is used to contain and heat the aerosol-generating substrate, and the heating method is, for example, peripheral heating or needle heating. Figure 7 The cigarette bin 2 is formed by extending through multiple sections of end connections, including a heating bin 24, an extension tube 251, and an insulation tube 252. Since only the heating bin 24 generates heat, the vacuum insulation 41 and the secondary insulation 42 can only wrap the outer periphery of the heating bin 24, and the extension tube 251 can extend axially relative to the vacuum insulation 41 and the secondary insulation 42. The second insulation gap between the cigarette bin 2 and the vacuum insulation 41 is actually the gap between the outer wall of the heating bin 24 and the inner wall of the vacuum insulation.

[0151] refer to Figure 7 and Figure 8 The aerosol generating device in each of the above embodiments also includes an upper end cover 26, one end of which is connected to the upper end of the heating chamber 24, and the other end extends and is connected to the top of the shell 3, so that the aerosol generating matrix can be fed in from the upper end cover 26. The insulation tube 252 constitutes the lower end cover, and clamps the heating chamber 24 together with the upper end cover 26 to ensure that the heating chamber 24 is located inside the shell 3. In addition, the upper end cover 26 and the vacuum insulation component 41 are installed, positioned and sealed using the first seal 44 and the positioning sleeve on the heating chamber, and the insulation tube 252 and the vacuum insulation component 41 are installed, positioned and sealed using the second seal 45 and the lower end cover sleeve 47, thereby achieving the sealing of the second insulation gap at both ends in the axial direction. Preferably, the first seal 44 and the second seal 45 are both made of silicone, and the heat conduction speed is reduced by the soft rubber component while forming a seal.

[0152] The extension bin 25 is still located in the housing 3 as a whole. The extension tube 251 as an extension section may not contain cigarettes, or when the cigarettes are long, part of the cigarettes will extend from the heating bin 24 to the extension tube 251. The cigarettes in the cigarette bin 2 are limited by inserting the end plug 1 into the extension tube 251. In this embodiment, the heating bin 24 can be a heating tube. The insulation tube 251 and the extension tube 252 have the same inner diameter as the heating bin 24. The three are aligned and connected along the axial direction to form a straight-through structure for easy cleaning.

[0153] The present invention proposes a shell assembly that can be used for an aerosol generating device, which is used to assemble and fix internal components such as a cigarette bin, a vacuum insulation component, a secondary insulation component, and a battery in the above-mentioned embodiments.

[0154] refer to Figure 12-15 The housing assembly of this embodiment includes the above-mentioned housing 3 and a key mechanism. The housing 3 includes an inner shell 31 and an outer shell 32. In addition to the above-mentioned heat insulation function, the inner shell 31 and the outer shell 32 in this embodiment can also fix the internal components. The key mechanism includes an outer key portion 62 and an inner key portion 61. The outer shell 32 and the inner shell 31 are respectively provided with a first through hole 35 and a second through hole 36 arranged opposite to each other along the first installation direction. The inner key portion 61 is at least partially embedded in the second through hole 36. The outer shell 32 is sleeved on the outer periphery of the inner shell 31. The outer key portion 62 passes through the first through hole 35 and the second through hole 36 along the above-mentioned first installation direction to dock with the inner key portion 61, so that the key mechanism constitutes a pin lock structure to prevent the outer shell 32 from being separated from the inner shell 31.

[0155] The pin lock structure formed by the key mechanism can lock the outer shell 32 after the outer button portion 62 is installed. Since the outer shell 32 is sleeved on the outer periphery of the inner shell 31 along the second installation direction, the pin lock structure is formed after the outer button portion 62 is installed, so that the freedom of the outer shell 32 in the second installation direction is limited and it will not separate from the inner shell 31 along the second installation direction. The second installation direction is, for example, Fig.15 The outer shell 32 includes a first outer shell 321 and a second outer shell 322, and the first outer shell 321 and the second outer shell 322 are respectively sleeved on the outer periphery of the inner shell 31 along two opposite directions of the second installation direction, so as to achieve docking.

[0156] The specific installation sequence of the outer shell assembly is as follows: install the inner button portion 61 in the inner shell 31 and connect it to the circuit board 51, then dock the front inner shell 311 and the rear inner shell 312 to clamp the components inside the inner shell 31. Next, the first outer shell 321 and the second outer shell 322 in the outer shell 32 are docked relative to each other and are sleeved on the outer periphery of the inner shell 31 along two relative directions along the second installation direction. After that, the outer button portion 62 is installed on the housing 3 along the first installation direction and docked and fixed with the inner button portion 61. The first installation direction is, for example, Fig.16z direction. After the outer button portion 62 is installed, it is impossible to remove the outer shell 32 from the inner shell 31 without removing the outer button portion 62. At the same time, the outer button portion 62 is fixed due to the clamping connection with the inner shell 31, and will not be excessively sunken or dislodged relative to the first perforation 35 and the second perforation 36. In this way, the outer shell 32 can be fixed relative to the inner shell 31, avoiding the gluing operation, canceling the gluing pressure holding time, improving the efficiency of the production line, and improving the degree of automation. The button mechanism itself is also difficult for the user to disassemble, and then the outer shell and the inner shell are also inconvenient to disassemble, realizing the limit anti-disassembly function.

[0157] In the above-mentioned embodiment, the "outside" and "inside" in the outer button part 62 and the inner button part 61 are relative concepts, that is, the outer button part 62 is relatively located outside, and the inner button part 61 is located closer to the inside of the outer shell assembly than the outer button part 62. The inner button part 61 of the present invention is at least partially located in the second perforation 36, so that it is closer to the circuit board 51, the battery 52 and the cigarette bin 2 in the inner shell 31, and more heat will be transferred. The outer button part 62 and the inner button part 61 are not integrally formed, so even if the inner button part 61 absorbs heat, the heat transfer is significantly reduced after being transferred to the outer button part 62. It has been proven that compared with only one button structure on the outer shell assembly, the button mechanism of the present invention includes two independent outer button parts 62 and inner button parts 61, which can effectively reduce the temperature of the button appearance surface located on the outer shell 32, and the user will not feel hot when pressing the outer button part 62.

[0158] As described above, the convex point structure 34 on the inner shell 31 can be used to provide a first thermal insulation gap between the outer shell 32 and the inner shell 31, while the outer shell 32 abuts against the outer periphery of the inner shell 31, that is, after the outer shell 32 is sleeved and abuts against the inner shell 31, appropriate pressure is applied to the inner shell 31. Since the inner shell 31 includes the front inner shell 311 and the rear inner shell 312, the outer shell 32 has been locked, so that the front inner shell 311 and the rear inner shell 312 will also be bound and will not separate, and then the locking of the outer shell 32 and the inner shell is completed through the pin locking action of the key mechanism.

[0159] Furthermore, after the outer button part 62 is docked and installed in place with the inner button part 61, the position of the outer button part 62 is fixed, and it will neither be completely sunken into the inner shell 31 nor separated from the inner button part 61 and completely fall out of the outer shell 32, ensuring that the pin locking effect is effective.

[0160] Specifically, refer to Fig.14, the inner button part 61 is installed inside the inner shell 31 and fixed. Due to the sleeve connection of the outer shell 32, the front inner shell 311 and the rear inner shell 312 are in a clamped state, so that a part of the end face of the inner button part 61 is covered by the inner side of the inner shell 31, and the other part is exposed through the second through hole 36. The inner shell 31 abuts against the inner button part 61, and at the same time, the inner button part 61 abuts against the circuit board in the shell 3 to fix the inner button part 61. The outer button part 62 passes through the first through hole 35 and the second through hole 36 along the first installation direction and is clamped with the shell 3 or the inner button part to prevent the outer button part 62 from escaping from the outer shell 32, that is, the outer button part 62 is clamped with the outer shell, or the inner shell, or the inner button part to limit its movement in the direction opposite to the first installation direction, for example Fig.14 Since the outer button portion 62 is docked with the inner button portion 61, the inner button portion 61 is fixed, thereby also limiting the outer button portion 62 from continuing to move along the first installation direction, for example Fig.14 That is, it is restricted to move to the right.

[0161] Furthermore, the outer button portion 62 has a first engaging portion for engaging, and the first engaging portion is, for example, one or more hooks 63. After being installed in place, the hooks 63 protrude into the interior of the housing 3. The housing or the inner button portion is provided with a second engaging portion corresponding to the first engaging portion, and the second engaging portion is, for example, a groove 64 corresponding to the hook 63. Through the engaging and limiting of the hook 63 and the groove 64, the outer button portion 62 will not fall out of the outer shell. More specifically, as Fig.14 As shown, the groove 64 is located inside the second through hole 36, that is, the groove 64 is arranged inside the inner shell 31, more specifically, around the hole wall of the second through hole 36 of the inner shell 31. The groove 64 arranged inside the second through hole 36 is conducive to maintaining the relative position relationship between the outer button part and the inner button part, and no structural features appear on the outer shell appearance surface. Correspondingly, the hook 63 is arranged around the outer button part 62. The outer button part 62 has an open end 621, the open end 621 is connected to the inner button part 61, and the hook 63 is arranged at the open end 62.

[0162] In the above embodiments, the hook 63 is an elastic wall hook, that is, the extension arm of the hook 63 is elastic and can be deformed appropriately, which is conducive to the hook 63 being embedded in the second through hole 36 and hooking back into the groove 64.

[0163] In the above embodiments, the outer shell 32 is sleeved on the inner shell 31 along the second installation direction, and the first installation direction is not parallel to the second installation direction. That is, the first installation direction forms an angle with the second installation direction. Further, the first installation direction is substantially perpendicular to the second installation direction. Substantially perpendicular includes that the first installation direction is perpendicular to the second installation direction, and also includes a moderate error in manufacturing in this field. At this time, the angle between the first installation direction and the second installation direction is substantially 90 degrees, including an angle of 90 degrees and within an allowable error range.

[0164] In the above embodiments, the inner button portion 61 also includes a first light guide component 65, which has a plurality of independent first light guide portions 651, and the plurality of first light guide portions 651 correspond one-to-one to the plurality of light-emitting components in the shell 3. For example, a plurality of light-emitting components are provided on the circuit board 51, and each light-emitting component corresponds to a first light guide portion 651 for light guidance. The outer button portion 62 is provided with a plurality of light-transmitting holes 622 corresponding to each first light guide portion 651 for light transmission, and each first light guide portion 651 transmits the light emitted by the light-emitting component through the corresponding light-transmitting hole 622 for observation. The inner button portion 61 of the present invention is provided with a plurality of through holes 611 extending from the inside to the outside, and a plurality of first light guide portions 651 are embedded in the through holes 611 of the inner button portion 61. Since the plurality of through holes 611 are spaced apart from one another, the embedded first light guide portions 651 are spaced apart from one another by the inner button portion 61. In this way, the light rays transmitted by the first light guide portions 651 will not affect each other, and light is transmitted independently through the light-transmitting holes 622, thereby avoiding interference between multiple beams of light, and facilitating users to observe changes in the status of the indicator light, such as the color of the indicator light and the number of lights on.

[0165] Furthermore, the outer button portion 62 further includes a second light guide component 66, which has a plurality of independent second light guide portions 661, which correspond one-to-one to the plurality of first light guide portions 651, and the second light guide portions 661 are used to transmit light from the first light guide portions 651 to the corresponding light transmission holes 622. In other embodiments, when the inner button portion and / or the outer button portion is thin and it is not easy to install a light guide, the light guide may not be installed, and the light guide point may be realized by locally reducing the glue to form a thin-walled light-transmitting part, punching holes, or secondary injection molding of a light-transmitting insert.

[0166] In the above embodiments, the outer button part and the inner button part are connected without gap, so that the outer button part and the inner button part move synchronously. Specifically, the gapless connection is a magnetic connection, a tight-fitting connection, a hook connection or a glue point connection. When a magnetic connection is selected, an outer magnetic body 623 can be provided on the outer button part 62, and an inner magnetic body 612 can be provided on the inner button part 61. The inner magnetic body 612 is fixed to the inner button part 61, and the outer magnetic body 623 is fixed to the outer button part 62. The outer button part 62 is connected to the inner button part 61 by connecting the inner magnetic body 612 and the outer magnetic body 623.

[0167] In the above-mentioned embodiments, the outer surface of the outer button portion 62 is not more than 0.5mm in maximum protrusion height relative to the outer surface of the outer shell 32, and the maximum sinking depth is not more than 2mm. The outer surface of the outer button portion 62 is too protruding relative to the outer surface of the outer shell 32, which is easy to cause the user to touch it by mistake, and the excessive sinking depth is not conducive to the user to press and use. It is preferred that the outer surface of the outer button portion is set to be substantially flat with the outer surface of the outer shell. In addition, the appropriate sinking of the outer button portion will not affect the pin locking effect on the outer shell 32. By setting the outer shell surface curvature, or additionally setting a connecting part with the outer shell on the outer button portion, as long as the button mechanism can form a pin locking structure, the outer shell is prevented from being separated from the inner shell along the second installation direction.

[0168] The present invention further provides an aerosol generating device for heating an aerosol generating substrate, comprising the housing assembly in the above embodiments, that is, including components such as the key mechanism in the above embodiments.

[0169] The outer button part and the inner button part are made of materials with good appearance processing performance, such as plastic (ABS, PP, PC, POM, PBT, etc.) and metal (aluminum alloy, zinc alloy, etc.). The first light guide part and the second light guide part are made of transparent materials such as ABS, PC, acrylic, etc. The inner button part and the outer button part can be combined with the first light guide part and the second light guide part by tight fitting installation, bonding, secondary injection molding, and filling with light-transmitting glue.

[0170] Various embodiments of the end plug, cigarette cartridge, thermal insulation assembly, and housing assembly may be combined with one another in the present invention to form an aerosol generating device.

[0171] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An aerosol generating device, It is characterized in that It includes a shell and a cigarette magazine located in the shell, the cigarette magazine is used to contain and heat an aerosol generating matrix and has an axial and radial direction. The cigarette magazine is formed by extending through multiple sections of end connections. The cigarette magazine extends along the axial direction and directly passes through the outside of the shell. Along the axial direction, the dimensions of the cigarette magazine in the radial direction are the same. The multiple sections include a heating chamber and an extension chamber with the same inner diameter as the heating chamber. One end of the extension chamber is axially aligned and connected with one end of the heating chamber, and the other end of the extension chamber directly passes through the outside of the shell. The extension chamber includes an extension tube and an insulation tube located between the extension tube and the heating chamber along the axial direction, and the opposite ends of the insulation tube along the axial direction are respectively connected to the heating chamber and the extension tube ends; the aerosol generating device also includes an end plug, which is detachable and used to insert the cigarette magazine from the bottom of the shell.

2. The aerosol generating device according to claim 1, It is characterized in that The extension tube extends along the axial direction to the bottom of the housing.

3. The aerosol generating device according to claim 1, It is characterized in that The specific heat capacity of the material of the inner wall of the thermal insulation tube is greater than the specific heat capacity of the material of the inner wall of the heating chamber.

4. The aerosol generating device according to claim 1, It is characterized in that The aerosol generating device also includes an upper end cover, one end of which is connected to the upper end of the heating chamber, and the other end extends and is connected to the top of the shell so that the aerosol generating matrix can be delivered from the upper end cover.

5. The aerosol generating device according to claim 4, It is characterized in that The heat-insulating tube forms a lower end cover, and clamps the heating chamber together with the upper end cover.

6. The aerosol generating device according to claim 1, It is characterized in that In the radial direction, an air-guiding gap is provided between the end plug and the housing and the cigarette bin to allow air flow.

7. The aerosol generating device according to claim 6, It is characterized in that At least a portion of the outer peripheral wall of the end plug forms the air guiding gap.

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