CN112244365A

CN112244365A - Aerosol generation device

Info

Publication number: CN112244365A
Application number: CN201910607078.2A
Authority: CN
Inventors: 陈斌; 张建; 何铭利; 陈巍
Original assignee: Shenzhen Royal Tobacco Industrial Ltd
Current assignee: Shenzhen Royal Tobacco Industrial Ltd; Shenzhen Yuyan Industrial Ltd
Priority date: 2019-07-06
Filing date: 2019-07-06
Publication date: 2021-01-22
Also published as: WO2021004227A1

Abstract

The invention relates to an aerosol generating device, comprising a main body, on which at least one heating chamber for heating aerosol-generating products is arranged, and at least one of the heating chambers is enclosed by a chamber wall that expands and contracts in the radial direction At least one part of the cavity wall is driven as a driven part to drive the cavity wall to expand and contract in the radial direction, so that the aerosol-generating product can be fully contacted with the cavity wall and the heating efficiency can be improved.

Description

Aerosol generating device

Technical Field

The invention relates to the field of low-temperature heating cigarettes, in particular to an aerosol generating device.

Background

The low-temperature heating cigarette is also called as heating non-combustion cigarette, is common in cigarette form, but is different from the traditional cigarette which generates smoke by combustion, and the low-temperature heating cigarette which is designed by taking heating non-combustion as the idea can ensure that the tobacco material is just heated to the degree of giving out the taste without igniting the tobacco material. In general, ordinary cigarettes generate a plurality of harmful substances at high smoking temperature of 400-1000 ℃, while low-temperature heating cigarettes mostly work at the temperature below 400 ℃, so that the harmful substances in first-hand cigarettes and second-hand cigarettes are greatly reduced.

At present, heating sheets or heating rods are adopted to heat the tobacco materials at low temperature, the phenomenon of uneven heating is easy to occur, and therefore, the technology of heating the tobacco materials at low temperature by adopting the annular heating pipe is adopted, but when the cigarette is excessively stressed and deformed due to accidental extrusion or hand holding of a user, part of the surface of the cigarette is inevitably incapable of being in direct contact with the inner surface of the annular heating pipe, so that the heating efficiency is reduced.

Disclosure of Invention

In this regard, there is a need for an aerosol-generating device comprising a body provided with at least one heating chamber for heating an aerosol-generating article, at least one of said heating chambers being defined by a radially expanding and contracting chamber wall, at least a portion of said chamber wall being driven as a passive portion to cause said chamber wall to radially expand and contract. It will be appreciated that radial expansion and contraction of the chamber wall means that both expansion and contraction can be achieved, not simultaneously.

In a preferred embodiment, the chamber wall comprises a flexible or elastic structure that can be crimped.

In a preferred example, the cavity wall includes a non-conductive flexible structure that can be curled or a non-conductive elastic structure that can be curled, and the flexible structure or the elastic structure is provided with a heating portion formed by a conductive material.

In a preferred embodiment, the heating portion has a sheet-like, layer-like, film-like, block-like, net-like or fence-like structure.

In a preferred embodiment, the cavity wall comprises an electrically conductive flexible structure that can be crimped or an electrically conductive elastic structure that can be crimped.

In a preferred embodiment, an outer wall surface of the cavity wall facing away from the heating cavity interior is provided with a first heat insulation portion for heat insulation.

In a preferred embodiment, a first conductive contact and a second conductive contact for electrically connecting with a power supply are disposed on the chamber wall, and a third conductive contact for electrically connecting with the first conductive contact and a fourth conductive contact for electrically connecting with the second conductive contact are formed in an extending manner on the power supply.

In a preferred embodiment, the first conductive contact and/or the second conductive contact and the corresponding third conductive contact and/or the fourth conductive contact are/is butted with each other to be electrified after the cavity wall is contracted; the first conductive contact and/or the second conductive contact and the corresponding third conductive contact and/or the fourth conductive contact are/is separated from each other after the cavity wall is enlarged, so that the power is cut off. It can be understood that the first conductive contact and the corresponding third conductive contact are mutually butted to be electrified after the cavity wall is contracted, and the first conductive contact and the corresponding third conductive contact are mutually separated to be electrified after the cavity wall is expanded; or the second conductive contact and the corresponding fourth conductive contact are mutually butted and electrified after the cavity wall is contracted, and the second conductive contact and the corresponding fourth conductive contact are mutually separated and powered off after the cavity wall is expanded; or the first conductive contact and the second conductive contact are respectively butted with the corresponding third conductive contact and the corresponding fourth conductive contact after the cavity wall is contracted so as to be electrified, and the first conductive contact and the second conductive contact are respectively separated from the corresponding third conductive contact and the corresponding fourth conductive contact after the cavity wall is expanded so as to be powered off.

In a preferred embodiment, the chamber wall is in a sheet, layer, film, net or fence like structure.

In a preferred example, one end of the cavity wall is fixed, and the other end of the cavity wall is driven to rotate or move as a driven part; or two ends of the cavity wall are respectively used as driven parts to be driven to rotate or move.

In a preferred example, the driven part is driven by a driver; or the driven part is provided with a manual toggle piece.

In a preferred embodiment, the driven part is driven by a driver, and a transmission mechanism is further disposed between the driven part and the driver.

In a preferred embodiment, an insertion hole is formed at one end of the cavity wall, and the other end of the cavity wall penetrates through the insertion hole and then encloses to form the heating cavity.

In a preferred embodiment, the cavity wall is coiled into a spiral to form the heating cavity, one end of the cavity wall is located inside the heating cavity, and the other end of the cavity wall is located outside the heating cavity.

In a preferred embodiment, a positioning structure is arranged between the cavity wall and the main body, and the positioning structure enables the cavity wall to be positioned relatively relative to the main body at least one position.

In a preferred embodiment, the main body includes a housing, one end of the housing is provided with a hollow cylinder, the cavity wall is located in the hollow cylinder, and the hollow cylinder is rotatably or relatively fixedly connected with the housing.

In a preferred embodiment, an end of the hollow cartridge remote from the housing is provided with a socket for insertion of an aerosol-generating article.

In a preferred embodiment, a positioning installation part is arranged in the hollow cylinder, the positioning installation part comprises a cylinder body, and at least the part of the cavity wall corresponding to the heating cavity is positioned in the cylinder body. It will be appreciated that the cavity wall may be located entirely within the barrel, or the cavity wall may be the portion of the cavity wall that forms the heating cavity after crimping.

In a preferred embodiment, the hollow cylinder and/or the cylinder of the positioning and mounting member is provided with a second heat insulation part on the outer wall.

In a preferred embodiment, the second heat insulating portion is formed by a vacuum layer or is formed by a heat insulating material.

It should be noted that a great number of technical features are described in the specification of the present application, and are distributed in various technical solutions, so that the specification is excessively long if all possible combinations of the technical features (i.e., technical solutions) in the present application are listed. In order to avoid this problem, the respective technical features disclosed in the above summary of the invention of the present application, the respective technical features disclosed in the following embodiments and examples, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of the technical features is technically infeasible. For example, in one example, the feature a + B + C is disclosed, in another example, the feature a + B + D + E is disclosed, and the features C and D are equivalent technical means for the same purpose, and technically only one feature is used, but not simultaneously employed, and the feature E can be technically combined with the feature C, so that the solution of a + B + C + D should not be considered as being described because the technology is not feasible, and the solution of a + B + C + E should be considered as being described.

According to the aerosol generating device disclosed by the embodiment of the invention, the heating cavity capable of expanding and contracting is used for heating the aerosol generating product, so that the aerosol generating product can be fully contacted with the cavity wall, and the heating efficiency is improved.

Drawings

Figure 1 is a schematic external view of an aerosol-generating device according to an embodiment of the present invention;

figure 2 is an exploded view of an aerosol-generating device according to an embodiment of the present invention;

FIG. 3 is a schematic view of the positioning mount of the aerosol generating device of FIG. 2;

figure 4 is a schematic view of a portion of an aerosol-generating device according to an embodiment of the present invention;

FIG. 5 is a schematic view of the aerosol-generating device of FIG. 4 inserted into an aerosol-generating article;

figure 6 is a schematic view of a partial structure in an aerosol-generating device according to another embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a chamber wall provided in accordance with an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, when an element is referred to as being "fixed to" another element, it may be directly on the other element or intervening elements may also be present, unless otherwise specified "directly on" the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, unless expressly stated otherwise. In contrast, when an element is referred to as being "directly connected" or "directly secured," there are no intervening elements present. The various objects of the drawings are drawn to scale for ease of illustration and not to scale for actual components.

An "aerosol-generating article" as described in embodiments of the present invention refers to a product, such as an aerosol-generating article, cartridge or cigarette, preferably a disposable article, containing a smoking material, capable of generating an aerosol, such as smoke or a mist, upon heating. The aerosol-generating article is not capable of providing electrical energy by itself.

An "aerosol-generating device" as described in embodiments of the present invention refers to a device for heating an aerosol-generating article, such as a smoking article. The aerosol-generating device may provide thermal energy directly to heat the aerosol-generating article or electrical energy to an aerosol-generating article which converts electrical energy to thermal energy to heat the smoking material.

The "smoking material" in the embodiments of the present invention refers to a smoking material, which is a material that can generate odor and/or nicotine and/or smoke upon heating or combustion, i.e., a material that can be atomized, i.e., an aerosol generating material. The tobacco material can be solid, semi-solid and liquid. Solid tobacco materials are often processed into sheet-like products due to considerations such as breathability, assembly, and manufacture, and are also commonly referred to as sheet, and filamentary sheet is also referred to as sheet filament. The tobacco material discussed in the embodiments of the present invention may be natural or synthetic tobacco liquid, tobacco oil, tobacco gum, tobacco paste, tobacco shred, tobacco leaf, etc., for example, the synthetic tobacco material contains glycerin, propylene glycol, nicotine, etc. The tobacco liquid is liquid, the tobacco tar is oily, the tobacco gel is gelatinous, the tobacco paste is pasty, the tobacco shreds comprise natural or artificial or extracted tobacco shreds, and the tobacco leaves comprise natural or artificial or extracted tobacco leaves. The smoking material may be heated in the form of an enclosure with other materials, such as in a heat-degradable package, for example a microcapsule, from which the desired volatile material is derived after heating.

The tobacco material of the embodiment of the invention may or may not contain nicotine. The tobacco material containing nicotine may include at least one of natural tobacco leaf product, tobacco liquid, tobacco oil, tobacco glue, tobacco paste, tobacco shred, tobacco leaf, etc. prepared from nicotine. The tobacco liquid is in water state, the tobacco tar is in oil state, the tobacco gum is in gel state, the tobacco paste is in paste state, the tobacco shred comprises natural or artificial or extracted tobacco shred, and the tobacco leaf comprises natural or artificial or extracted tobacco leaf. The nicotine-free tobacco material mainly contains fragrant substances, such as spices, and can be atomized to simulate smoking process and quit smoking. In one embodiment, the flavoring comprises peppermint oil. The smoking material may also include other additives such as glycerin and/or propylene glycol.

Referring to figures 1 to 6, the present invention provides an aerosol generating device comprising a body, i.e. a smoking article for heating an aerosol generating article 200 to produce a nebulous aerosol, comprising a housing 1 and a power source for supplying power, preferably a battery 2, which may be a solar panel or the like. The battery 2 is built in the case 1. A control circuit, including but not limited to an overcurrent protection control, a temperature control, a charging control, a discharging control, a heating mode control (continuous, pulse, temperature-controlled heating, electromagnetic induction heating, etc.), etc., may be preferably added on the circuit board 3 and integrated with the battery 2 inside the housing.

The body is provided with at least one heating chamber 4 for heating the aerosol-generating article 200, the at least one heating chamber 4 being defined by a radially expanding and contracting chamber wall 5, at least one portion of the chamber wall 5 being driven as a passive portion 52 to cause the chamber wall 5 to radially expand and contract. The position of the passive part 52 on the cavity wall 5 can be determined according to the requirement, and the passive part 52 can be located at the end, the middle, etc. of the cavity wall 5. The driven portion 52 is driven to perform an action including, but not limited to, moving or rotating. The activation takes place by the passive part 52 of the chamber wall 5 being activated, which in turn causes the chamber wall 5 to expand and contract in radial direction.

The main part still includes a cavity section of thick bamboo 7, and a cavity section of thick bamboo 7 sets up the one end at casing 1, rotates between a cavity section of thick bamboo 7 and the casing 1 to be connected, perhaps relative fixed connection between a cavity section of thick bamboo 7 and the casing 1, and its fixed connection mode includes but not limited to integrated into one piece, welding, bonding, can dismantle and connect etc.. A positioning installation part 6 is arranged in the hollow cylinder 7, the positioning installation part 6 comprises a cylinder body 62, and the cavity wall 5 is positioned in the cylinder body 62. The chamber wall 5 may be connected to the cylinder 62 or the chamber wall 5 may be connected to the hollow cylinder 7. Or the chamber wall 5 may not be connected to the cylinder 62 and the hollow cylinder 7.

The outer wall of the cylinder 62 and/or the hollow cylinder 7 is provided with a second heat insulation part, which is preferably a vacuum layer, or a sheet, layer, film or block heat insulation part made of heat insulation material, including but not limited to rubber, plastic, cloth, cotton, etc.

In some embodiments, one end of the chamber wall 5 is fixed as a fixed portion 51, and the other end of the chamber wall 5 is driven to rotate or move as a driven portion 52; alternatively, both ends of the chamber wall 5 are driven to rotate or move as the passive portions 52. The driven portion 52 may be driven by a driver (not shown), or driven manually, for example, a shifting member for manual operation is connected to the driven portion 52, and the shifting member is made of an insulating material. The driver includes, but is not limited to, a micro motor, etc.

In other embodiments, a transmission mechanism is further disposed between the passive portion 52 and the driver. The transmission mechanism includes, but is not limited to, gears, racks, threaded screws, belts, and the like.

In other embodiments, as shown in fig. 4, one end of the cavity wall 5 is provided with an insertion hole 53, and the other end of the cavity wall 5 penetrates through the insertion hole 53 to form the heating cavity 4. One end of the chamber wall 5 is fixed as a fixed portion 51, and the other end of the chamber wall 5 is driven to move as a passive portion 52. Alternatively, both ends of the chamber wall 5 are moved. In this way, the heating chamber 4 becomes larger and smaller. A positioning structure for positioning the passive part 52 at different positions with respect to the main body is provided between the passive part 52 and the main body. The positioning structure includes but is not limited to a snap structure or a wave bead and groove matching structure.

In other embodiments, as shown in fig. 6, the cavity wall 5 is coiled into a spiral to form the heating cavity 4, with one end of the cavity wall 5 being located inside the heating cavity 4 and the other end of the cavity wall 5 being located outside the heating cavity 4. Wherein, the one end that chamber wall 5 is located heating chamber 4 inside is connected on the drive shaft of driver as passive portion 52, and the other end that chamber wall 5 is located heating chamber 4 outside is motionless as fixed part 51, and along with the rotation of the drive shaft of driver, the drive is located inside passive portion 52 and constantly rotates around the drive shaft, reduces the heating chamber during forward rotation, enlarges the heating chamber during reverse rotation. Similarly, one end of the cavity wall 5 located inside the heating chamber 4 may be fixed as the fixed portion 51, and the other end of the cavity wall 5 located outside the heating chamber 4 may be connected to the driving shaft of the driver as the driven portion 52 and may rotate along with the driving shaft.

As shown in fig. 7, the cavity wall 5 includes a substrate 501 of flexible or elastic structure that can be rolled to form the heating cavity 4. The flexible structure or the elastic structure includes, but is not limited to, a sheet, a layer, a film, a net, or a barrier. That is, the chamber wall 5 includes, but is not limited to, a sheet, a layer, a film, a net, or a fence.

In some embodiments, the chamber wall 5 employs a conductive flexible structure as the substrate 501, and the conductive flexible structure employs a conductive flexible material, including but not limited to conductive heating silica gel, polyimide conductive heating film, or the conductive flexible material is a conductive flexible material made of carbon as a derivative or compound of a part or all of constituent elements, such as at least one of carbon nanotube, graphene, carbon fiber, and the like. The electrically conductive flexible structure may also be constructed from a mesh or fence-like configuration of electrically conductive metals including, but not limited to, one or more of copper, iron, gold, silver, aluminum, nichrome, metal oxide, ferrochromium-aluminum alloy, and palladium alloy.

In other embodiments, the chamber wall 5 is made of a non-conductive flexible structure as the substrate 501, the non-conductive flexible structure is made of a non-conductive flexible material, and the temperature of the non-conductive flexible structure is higher than 200 ℃ or even higher than 300 ℃, and the temperature generated by the heating region generally does not exceed 500 ℃, and the temperature required for the non-conductive flexible material is less than 500 ℃, for example, the non-conductive flexible structure includes, but is not limited to, polyvinyl alcohol (PVA), Polyacrylonitrile (PAN), polyphenylene sulfide (PPS), chlorinated polyether, Polyarylsulfone (PAR), polyether ether ketone (PEEK), poly-p-oxybenzoyl (POB), polypropylene (PP), polyvinyl formal (PVF), polyvinylidene chloride (PVDC), Polysulfone (PSF), polyphenylene oxide (PPO), Polycarbonate (PC), and other heat-resistant plastic materials. As shown in fig. 7, the chamber wall 5 further includes a heating portion 502 provided on the non-conductive flexible structural body, and the heating portion 502 is formed of a conductive material. The heating section 502 has a sheet-like, layer-like, film-like, block-like, net-like, or fence-like structure. The conductive material includes, but is not limited to, metal, alloy, metal composite material and/or composite of at least one or more of conductive material composed of carbon and its derivatives, conductive glue, and conductive ink. The heating portion 502 is attached to the surface of the non-conductive flexible structure facing the inside of the heating chamber 4 by a fixing method including, but not limited to, plating, printing, coating, evaporation, printing, pasting, welding, integral molding, etc. Alternatively, the non-conductive flexible structure has an attachment on a side facing the inside of the heating chamber 4, and the heating part 502 is formed integrally on the surface of the attachment by plating, printing, coating, adhering, welding, or the like.

In other embodiments, the chamber wall 5 employs a conductive elastomeric structure as the substrate 501, and the conductive elastomeric structure is a conductive elastomeric material, such as a copper material, e.g., beryllium copper. The chamber wall 5 may also employ a non-conductive elastomeric structure as the substrate 501, the non-conductive elastomeric structure being a non-conductive elastomeric material, such as a stainless steel material. The chamber wall 5 further includes a heating portion 502 provided on the non-conductive elastic structural body, and the heating portion 502 is formed of a conductive material. The heating section 502 has a sheet-like, layer-like, film-like, block-like, net-like, or fence-like structure. The conductive material includes, but is not limited to, metal, alloy, metal composite material and/or composite of at least one or more of conductive material composed of carbon and its derivatives, conductive glue, and conductive ink. The heating portion 502 is attached to the surface of the non-conductive flexible structure facing the inside of the heating chamber 4 by a fixing method including, but not limited to, plating, printing, coating, evaporation, printing, pasting, welding, integral molding, etc. Alternatively, the non-conductive flexible structure has an attachment on a side facing the inside of the heating chamber 4, and the heating part 502 is formed integrally on the surface of the attachment by plating, printing, coating, adhering, welding, or the like.

The heating portion 502 may be provided on the surface of the conductive flexible structure or the conductive elastic structure.

In other embodiments, as shown in figure 7, the side of the chamber wall 5 facing away from the interior of the heating chamber is provided with a first insulating portion 503 that is insulating. The first insulating portion 503 is made of an insulating material, preferably an insulating and heat-insulating material, including but not limited to rubber, plastic, cloth, cotton, and the like. The first heat insulating portion 503 has a sheet shape, a layer shape, a film shape, a block shape, or the like.

The cavity wall 5 is provided with a first conductive contact and a second conductive contact for electrically connecting with two electrodes (i.e., a positive electrode and a negative electrode) of the battery 2, and the specific positions of the first conductive contact and the second conductive contact are determined according to needs and are not limited. In some embodiments, the first and second conductive contacts may be located on the conductive flexible structure, the conductive elastic structure, and/or the heated portion 502. The first conductive contact and the second conductive contact may be located on the non-conductive flexible structure or the non-conductive elastic structure, and the first conductive contact and the second conductive contact are the heating portion 502 exposed from the non-conductive flexible structure or the non-conductive elastic structure to the outside of the cavity wall 5, or extend from the non-conductive flexible structure or the non-conductive elastic structure to the outside of the cavity wall 5 by using the conductive member from the heating portion 502. The conductive member includes, but is not limited to, an electric wire, a conductive column, a conductive spring, and the like.

Two electrodes of the battery 2 extend to form a third conductive contact electrically connected to the first conductive contact and a fourth conductive contact 40 electrically connected to the second conductive contact (see fig. 4 and 5), the positive electrode and the negative electrode of the battery 2 extend directly or through a conductive member, which includes but is not limited to an electric wire, a conductive column, a conductive elastic sheet, etc.

Preferably, in some embodiments, the first conductive contact and the third conductive contact are relatively fixed and electrically connected, and when a passive portion 52 of the cavity wall moves to a desired extent to heat the cavity 4, the second conductive contact is electrically connected to the fourth conductive contact 40 for conduction. In other embodiments, when the driven portions 52 at the two ends of the cavity wall 5 are respectively moved to the extent that the heating cavity 4 is required to be shrunk, the first conductive contact and the third conductive contact are electrically connected and electrically connected to each other, and the second conductive contact and the fourth conductive contact 40 are electrically connected and electrically connected to each other.

The following is a detailed description of specific examples.

Example 1

As shown in fig. 1-5, the aerosol-generating device comprises a housing 1, within which housing 1 a battery 2 and a circuit board 3 are mounted. A positioning installation part 6 is arranged at one end of the shell 1, a hollow cylinder 7 is sleeved outside the positioning installation part 6, one end of the hollow cylinder 7 is rotatably connected with the shell 1, and a port 8 for inserting the aerosol generating product 200 is arranged at the other end of the hollow cylinder 7. The port member 8 is provided with a socket 81. The port member is fixedly connected to the hollow cylinder 7 by means of, but not limited to, integral molding, welding, bonding, screwing, detachable connection, etc.

A rotation limiting structure (not shown) is arranged between the hollow cylinder 7 and the shell 1. The rotary limiting structure comprises an annular groove and an annular bulge matched with the annular groove, the annular groove is formed in one of the hollow cylinder 7 and the shell 1, the annular bulge is formed in the other one of the hollow cylinder 7 and the shell 1, and the annular bulge is inserted into the annular groove. The rotation limiting structure may also include an internal thread and an external thread, the internal thread is formed on one of the hollow cylinder 7 and the housing 1, the external thread is formed on the other of the hollow cylinder 7 and the housing 1, and the hollow cylinder 7 and the housing 1 are connected through the thread to realize the limiting rotation.

As shown in fig. 4, one end of the cavity wall 5 is provided with an insertion hole 53, and the other end of the cavity wall 5 penetrates through the insertion hole 53 to form the heating cavity 4. The chamber wall 5 may be formed of the various flexible structures, elastic structures, and/or the heating portion 502 described above, and in this embodiment, the chamber wall 5 is formed of a conductive flexible structure or a conductive elastic structure, such as a polyimide conductive heating film, a flexible film made of graphene material, or a beryllium copper sheet made of beryllium copper.

As shown in fig. 3 to 5, the positioning and mounting member 6 includes a base plate 61, a substantially cylindrical barrel 62 is protrudingly provided on the base plate 61, the cavity wall 5 is substantially located in the barrel 62, a first slot 63 is formed on the barrel 62, a first insertion structure 64 adapted to the slot 63 is installed at one end of the cavity wall 5, and the end of the cavity wall 5 is fixed as the fixing portion 52 by inserting the first insertion structure 64 into the first slot 63. In this embodiment, the first insert structure 64 is two pieces 100, and the end of the cavity wall 5 is held between the two pieces 100.

The outer wall of the hollow cylinder 7 and/or the cylinder 62 of the positioning and mounting member 6 is provided with a second heat insulation part, which is preferably a vacuum layer, or a sheet-shaped, layer-shaped, film-shaped, block-shaped heat insulation part made of heat insulation material, including but not limited to rubber, plastic, cloth, cotton, etc.

As shown in fig. 2-5, the cylinder 62 of the positioning and mounting member 6 is further provided with a slit 65, the other end of the cavity wall 5 as the passive portion 52 extends out of the slit 65, two clamping portions (not shown) protrude from the inner wall of the hollow cylinder 7, a second slot 71 is formed between the two clamping portions, or a second slot 71 is formed on the inner wall of the hollow cylinder 7. A second insertion structure 72 adapted to the second slot 71 is mounted on the driven portion 52, and the second insertion structure 72 is inserted into the second slot 71. The hollow cylinder 7 corresponds to a toggle member for manual operation. As the hollow barrel 7 is manually twisted, the passive portion 52 of the cavity wall 5 is moved, thereby expanding and contracting the heating cavity 4.

The chassis 61 of the positioning installation part 6 is also convexly provided with a first limiting body 66 and a second limiting body 67 which are used for limiting the moving range of the passive part 52 of the cavity wall 5, when the passive part 52 of the cavity wall 5 moves to the first limiting body 66, the first limiting body and the second limiting body are limited and stopped moving, and at the moment, the heating cavity 4 is contracted; when the passive part 52 of the cavity wall 5 moves to the second limiting body 67, the movement is limited and stopped, and at this time, the heating cavity 4 is expanded.

A positioning structure is provided between the chassis 61 of the positioning mount 6 and the second insertion structure 72. In this embodiment, the locating structure includes a bead 68 and a groove (not shown), the bead 68 being disposed on one of the base plate 61 and the second insert structure 72, and the groove being open on the other of the base plate 61 and the second insert structure 72. The number of beads 68 and grooves is as desired. The beads 68 or grooves provided on the chassis 61 are located between the first position-limiting body 66 and the second position-limiting body 67. In the present embodiment, the beads 68 are disposed on the surface of the base plate 61, the groove is formed on the second insertion structural member 72, and the base plate 61 is formed with a mounting hole 611 for mounting the beads 68.

The fixing portion 51 of the cavity wall 5 is provided with a first conductive contact for electrically connecting with one of the electrodes of the battery 2, one of the electrodes (referred to as the positive electrode or the negative electrode) of the battery 2 is directly used as a third conductive contact for electrically connecting with the first conductive contact, or one of the electrodes (referred to as the positive electrode or the negative electrode) of the battery 2 extends out of the third conductive contact for electrically connecting with the first conductive contact through a conductive connecting member such as a conductive wire or an ejector pin, and the two are always kept in a fixed butt joint state. The passive portion 52 of the cavity wall 5 is provided with a second conductive contact for electrically connecting with another electrode of the battery 2, and the another electrode (referred to as a negative electrode or a positive electrode) of the battery 2 can be directly used as the fourth conductive contact 40 electrically connected with the second conductive contact, or the another electrode (referred to as a negative electrode or a positive electrode) of the battery extends out of the fourth conductive contact 40 for electrically connecting with the second conductive contact through a conductive connecting member such as a conductive wire or a thimble. The fourth conductive contact 40 may be disposed on the first position-limiting body 66 or on the surface of the bottom plate 61 near the first position-limiting body 66, and the second conductive contact is located at a position where the driven portion 52 of the chamber wall 5 corresponds to the fourth conductive contact 40. When the driven portion 52 of the cavity wall 5 moves to the first position limiting body 66, the heating cavity 4 contracts while the second conductive contact is in contact with the fourth conductive contact 40 to be energized, so as to heat the aerosol-generating article, but this is merely an exemplary configuration, and the positions of the second conductive contact and the fourth conductive contact 40 are not limited to the above configuration, and it is within the protection scope of the present invention as long as the heating cavity 4 contracts while the second conductive contact is in contact with the fourth conductive contact 40. A through hole 612 for exposing the fourth conductive contact 40 is opened in the chassis 61.

When the aerosol generating device is used, the hollow cylinder 7 is twisted to drive the driven part 52 of the cavity wall 5 to move to the first limiting body 66 and stop moving due to blocking, at this time, the heating cavity 4 meets the contraction requirement and can clamp an aerosol generating product, and meanwhile, the second conductive contact on the cavity wall 5 is mutually butted with the fourth conductive contact 40 extending from the battery to be electrified, so that the aerosol generating product is heated; the hollow cylinder 7 is twisted again along the opposite direction to drive the driven part 52 of the cavity wall 5 to move, the second conductive contact can be separated from the fourth conductive contact 40, the power is cut off, the heating of the aerosol generating product is stopped, when the driven part 52 of the cavity wall 5 moves to the second limiting body 67, the aerosol generating product is blocked and stops moving, the heating cavity 4 is expanded, and the sucked aerosol generating product is released and is easily taken out.

Example 2 (not shown, similar to the structure of example 1)

The difference from the embodiment 1 is that: the structure of the positioning and mounting member 6 is different from that of embodiment 1, in embodiment 1, the fixed portion 51 of the cavity wall 5 is changed to be another passive portion 52, the first slot 63 is changed to be disposed on the inner wall of the hollow cylinder 7, and the first conductive contact and the third conductive contact are changed from the fixed electrical connection relationship to the movable conductive relationship, that is, the separable and butt connection relationship.

The positioning installation part 6 comprises a base plate 61, a cylindrical body 62 which is approximately cylindrical is convexly arranged on the base plate 61 in an extending mode, the cavity wall 5 is basically located in the cylindrical body 62, two cracks 65 are formed in the cylindrical body 62, and two ends of the cavity wall 5 respectively serve as driven parts 52 and extend out of the two cracks 65. The two passive portions 52 are turned in the same direction. In other embodiments, the two movable portions 52 may also be respectively moved in opposite directions for rotation.

The inner wall of the hollow cylinder 7 is provided with a first slot 63 and a second slot 71, two ends of the cavity wall 5 serving as the passive part 52 are respectively provided with a first insertion structural member 64 and a second insertion structural member 72, the first insertion structural member 64 is matched with the first slot 63 and inserted into the first slot 63, and the second insertion structural member 72 is matched with the second slot 71 and inserted into the second slot 71. Similarly, the hollow cylinder 7 corresponds to a toggle member for manual operation. As the hollow cylinder 7 is manually twisted, both the passive parts 52 of the cavity wall 5 are moved, thereby expanding and contracting the heating cavity 4. The two passive portions 52 move in the same direction with the hollow cylinder 7.

The second conductive contact and the fourth conductive contact 40 are designed in the same manner as in embodiment 1. The first conductive contact is arranged on the cavity wall 5, the third conductive contact is extended from the electrode of the battery and is positioned on the base plate 61 of the positioning installation part 6, and when the driven parts 52 at the two ends of the cavity wall 5 move to reduce the heating cavity 4 to the required size, the first conductive contact and the third conductive contact can be in butt joint to be electrified. The second and fourth conductive contacts are also energised simultaneously to effect a heating function of the heating chamber 4 to heat the aerosol-generating article.

When the aerosol generating device is used, the hollow cylinder 7 is twisted to drive the two driven parts 52 of the cavity wall 5 to move, one driven part 52 is blocked and stops moving when moving to the first limiting body 66, at the moment, the heating cavity 4 meets the requirement of reduction, an aerosol generating product can be clamped, meanwhile, the first conductive contact on the cavity wall 5 is in butt joint with the third conductive contact extending from the battery to be electrified, the second conductive contact is in butt joint with the fourth conductive contact 40 extending from the battery to be electrified, and the aerosol generating product is heated; the hollow cylinder 7 is twisted again along the opposite direction to drive the driven part 52 of the cavity wall 5 to move, the first conductive contact and the second conductive contact can be separated from the third conductive contact and the fourth conductive contact 40, the power failure is realized, the heating of the aerosol generating product is stopped, when the driven part 52 of the cavity wall 5 moves to the second limiting body 67, the movement is stopped due to blocking, the heating cavity 4 is expanded, and the sucked aerosol generating product is released and is easily taken out.

Example 3

The differences from examples 1 and 2 are that: the hollow cylinder 7 and the housing 1 are fixed relatively, and the fixed connection manner includes, but is not limited to, integral molding, welding, bonding, detachable connection, and the like. The rotating dial knob (not shown) is arranged at any position of an integral component formed by the shell 1, the hollow barrel 7 and the port component 8, at the moment, the rotating dial knob is used as a dial component, the rotating dial knob is approximately in a disc shape, one end or two ends of the cavity wall 5 or the upper end and/or the lower end of the rotating dial knob are used as a driven part 52 and connected with the rotating dial knob, and the rotating dial knob drives the driven part 52 of the cavity wall 5 to move, so that the cavity wall 5 is contracted and expanded, and the heating cavity 4 is contracted and expanded. The chamber wall 5 need not be connected to the hollow cylinder 7 or the cylinder 62. The part of the rotary dial button which can be rotated by dialing is exposed out of the integral component formed by the shell 1, the hollow cylinder 7 and the port piece 8, so that the user can rotate the rotary dial button manually. The principle of energization of the battery 2 is the same as in

embodiments

1 and 2.

Example 4

Example 4 is similar to example 1 in general structure, mainly with major differences in the way the chamber wall 5 is curled and moved.

The aerosol generating device comprises a housing 1, a battery 2 and a circuit board 3 mounted in the housing 1, and a microcontroller (not shown) provided on the circuit board 3. A positioning installation part 6 is arranged at one end of the shell 1, a hollow cylinder 7 is sleeved outside the positioning installation part 6, and the hollow cylinder 7 is stationary. The hollow cylinder 7 is connected to the housing 1 by means including, but not limited to, integral molding, welding, bonding, detachable connection, etc.

The end of the hollow barrel 7 remote from the housing 1 is provided with a port 8 for insertion of an aerosol-generating article, the port 8 being provided with a socket 81. The port 8 is fixedly connected to the hollow tube 7, and the connection manner includes, but is not limited to, integral molding, welding, bonding, screwing, detachable connection, and the like.

As shown in fig. 6, the cavity wall 5 is coiled to form the heating cavity 4, the cavity wall 5 may be formed by the above-mentioned various flexible structures, elastic structures and/or heating portions 502, and in this embodiment, the cavity wall 5 is formed by a conductive elastic structure, such as a beryllium copper sheet made of beryllium copper.

As shown in fig. 6, one end of the cavity wall 5 is located inside the heating chamber 4 and is set as the inner end of the cavity wall, and the other end of the cavity wall 5 is located outside the heating chamber 4 and is set as the outer end of the cavity wall.

As shown in fig. 6, the positioning and mounting member 6 includes a base plate 61, a substantially cylindrical barrel 62 is disposed on the base plate 61 in a protruding manner, the cavity wall 5 is substantially located in the barrel 62, wherein the inner end of the cavity wall is used as a driven portion 52 and driven by a driving shaft 900 of the driver to rotate, and the outer end of the cavity wall is used as a fixed portion 51 fixed on the barrel 62 and can be fixed by inserting a first insertion structure 64 connected with the cavity wall 5 into a first slot 63. Alternatively, the outer end of the chamber wall is attached directly to the inner wall of barrel 62, including but not limited to welding, adhesive, hook attachment, and the like. The outer end of the cavity wall can be fixed, and all the modes of fixing the outer end of the cavity wall are within the protection scope of the invention.

When the heating cavity is used, the microcontroller controls the driver to work, so that at least one end of the cavity wall 5 is driven to rotate, the heating cavity 4 is reduced, and the heating cavity 4 is enlarged during reverse rotation.

In other embodiments, the inner end of the chamber wall is connected as a passive portion 52 to a connection post of a rotatable rotary dial knob. At the moment, the rotary shifting button is used as a shifting piece, the rotary shifting button is approximately in a wafer shape, and when the connecting column is located at the central position of the rotary shifting button, the rotary shifting button rotates to drive the inner end of the cavity wall to rotate the curling cavity wall 5. When the connecting column is located at the non-central position of the rotary shifting button, the rotating of the rotary shifting button drives the inner end coil of the cavity wall to rotate in a revolution way to rotate the curling cavity wall 5, and finally the heating cavity 4 is enlarged and reduced. The part of the rotary dial button which can be rotated by dialing is exposed out of the integral component formed by the shell 1, the hollow cylinder 7 and the port piece 8, so that the user can rotate the rotary dial button manually.

The cavity wall 5 is provided with a first conductive contact and a second conductive contact, two electrodes of the battery 2 extend out of a third conductive contact and a fourth conductive contact 40, the first conductive contact is electrically connected with the third conductive contact, and the second conductive contact is electrically connected with the fourth conductive contact. The battery 2 is electrically connected with the microcontroller.

The micro controller and the circuit board 3 control the battery 2 to be electrified, so that the heating cavity 4 is heated. It is within the scope of the present invention that the control battery 2 is powered on before the driver is controlled to operate or after the driver operates, or the heating chamber 4 is reduced to a desired size and then the control battery 2 is powered on.

Example 5

The inner end of the chamber wall is fixed as a fixing part 51, e.g. by a base plate 61 or the like. The outer end of the chamber wall is driven to rotate by the drive shaft 900 of the driver as the passive section 52. The driver may be a micro motor or a micro motor, etc. The driver is electrically connected with the microcontroller on the circuit board 3. The microcontroller controls the operation of the driver including the operating time, rotational speed, etc.

When the heating device is used, the microcontroller controls the driver to work, so that at least one end of the cavity wall 5 is driven to rotate, the heating cavity 4 is contracted, and the microcontroller and the circuit board 3 control the battery 2 to be electrified, so that the heating cavity 4 is heated. It is within the scope of the present invention that the control battery 2 is powered on before the driver is controlled to operate or after the driver operates, or the heating chamber 4 is reduced to a desired size and then the control battery 2 is powered on.

In other embodiments, the inner end of the chamber wall is fixed as a fixed portion 51 and the outer end of the chamber wall is connected as a passive portion 52 to a connection post of a rotatable rotary knob. At the moment, the rotary shifting button is used as a shifting piece, the rotary shifting button is approximately in a wafer shape, and the rotary shifting button rotates to drive the outer end of the cavity wall to revolve around to rotate the curling cavity wall 5. Eventually, expansion and contraction of the heating chamber 4 are achieved. The part of the rotary dial button which can be rotated by dialing is exposed out of the integral component formed by the shell 1, the hollow cylinder 7 and the port piece 8, so that the user can rotate the rotary dial button manually. The principle of the embodiment 1 may be adopted for the energization of the battery 2, and the microcontroller may be used to control the energization of the battery 2 as described above.

Example 6

In this embodiment, the cavity wall inner end and the cavity wall outer end are each driven to rotate by the drive shaft 900 of the driver as the driven portion 52. In other embodiments, the inner end of the cavity wall and the outer end of the cavity wall are both used as the passive part 52 and are rotated and shifted by the two upper rotating and shifting buttons, and the rotating and shifting buttons are used as shifting parts.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An aerosol generating device, comprising a main body, the main body is provided with at least one heating chamber for heating an aerosol-generating product, wherein at least one of the heating chambers is formed by a radially expanding and contracting chamber wall The enclosure is formed, and at least one part of the cavity wall is driven as a driven part to drive the cavity wall to expand and contract in the radial direction.

2 . The aerosol generating device according to claim 1 , wherein the cavity wall comprises a flexible structure body or an elastic structure body that can be curled. 3 .

3 . The aerosol generating device according to claim 2 , wherein the cavity wall comprises a non-conductive curlable flexible structure or a non-conductive curlable elastic structure, the flexible structure Alternatively, the elastic structure is provided with a heating portion formed of a conductive material.

4 . The aerosol generating device according to claim 3 , wherein the heating part has a sheet-like, layer-like, film-like, block-like, mesh-like or fence-like structure. 5 .

5 . The aerosol generating device according to claim 2 , wherein the cavity wall comprises a conductive and crimpable flexible structure or a conductive and crimpable elastic structure. 6 .

6 . The aerosol generating device according to claim 1 , wherein the outer wall surface of the cavity wall facing away from the inside of the heating cavity is provided with a first heat insulation portion for heat insulation. 7 .

7 . The aerosol generating device according to claim 1 , wherein the cavity wall is provided with a first conductive contact and a second conductive contact for electrical connection with a power source, and the power source extends to form a useful A third conductive contact electrically connected to the first conductive contact and a fourth conductive contact electrically connected to the second conductive contact.

8. The aerosol generating device according to claim 7, wherein the first conductive contact and/or the second conductive contact and the corresponding third conductive contact and/or the corresponding The fourth conductive contacts are connected to each other after the cavity wall is contracted to be energized; the first conductive contacts and/or the second conductive contacts and the corresponding third conductive contacts and/or the After the cavity wall is enlarged, the fourth conductive contacts are separated from each other and are powered off.

9 . The aerosol generating device according to claim 1 , wherein the cavity wall has a sheet-like, layer-like, film-like, mesh-like or fence-like structure. 10 .

10 . The aerosol generating device according to claim 1 , wherein one end of the cavity wall is fixed, and the other end of the cavity wall is driven to rotate or move as a driven part; or, the cavity wall The two ends are driven to rotate or move as the driven part respectively.

11 . The aerosol generating device according to claim 1 , wherein the actuated portion is driven by a driver; or the actuated portion is provided with a toggle member for manual operation. 12 .

12 . The aerosol generating device according to claim 11 , wherein the actuated portion is driven by a driver, and a transmission mechanism is further provided between the actuated portion and the driver. 13 .

13 . The aerosol generating device according to claim 10 , wherein one end of the cavity wall is provided with an insertion hole, and the other end of the cavity wall passes through the insertion hole to enclose the heating cavity. 14 . .

14 . The aerosol generating device according to claim 10 , wherein the cavity wall is curled into a spiral shape to form the heating cavity, one end of the cavity wall is located inside the heating cavity, and an end of the cavity wall is located inside the heating cavity. 15 . The other end is located outside the heating chamber.

15 . The aerosol generating device according to claim 1 , wherein a positioning structure is provided between the cavity wall and the main body for positioning the cavity wall in at least one position relative to the main body. 16 .

16 . The aerosol generating device according to claim 1 , wherein the main body comprises a casing, one end of the casing is provided with a hollow cylinder, the cavity wall is located in the hollow cylinder, and the hollow The cartridge and the housing are connected in rotation or relatively fixedly.

17 . The aerosol generating device according to claim 16 , wherein the end of the hollow cylinder away from the housing is provided with a socket for inserting the aerosol generating article. 18 .

18 . The aerosol generating device according to claim 16 , wherein the hollow cylinder is provided with a positioning mounting member, the positioning mounting member comprises a cylinder body, and the cavity wall at least corresponds to the heating chamber. 19 . part is inside the barrel.

19 . The aerosol generating device according to claim 18 , wherein a second heat insulating portion is provided on the outer wall of the hollow cylinder and/or the cylinder of the positioning and mounting member. 20 .

20 . The aerosol generating device according to claim 19 , wherein the second heat insulating part is formed by a vacuum layer or by a heat insulating material. 21 .