Aerosol generating device

Abstract

The present invention relates to an aerosol generating device, comprising a fixed cylinder, wherein a movable moving cylinder for forming a heating space is arranged inside the fixed cylinder, and a sealing and sliding member for sealing and sliding is arranged between the outer wall of the moving cylinder and the inner wall of the fixed cylinder. By designing a sealing and sliding member that can be both sealed and smooth between the outer wall of the moving cylinder and the inner wall of the fixed cylinder, airflow only flows through a preset airflow channel, thereby avoiding airflow turbulence and not affecting the smoothness of movement of the moving cylinder.

Description

Technical Field

[0001] The invention relates to the field of low-temperature heated smoke, and in particular to an aerosol generating device. Background Art

[0002] Low-temperature heated cigarettes, also known as heat-not-burn cigarettes, are more common in the form of cigarettes. However, unlike traditional cigarettes that burn to produce smoke, low-temperature heated cigarettes designed with the idea of ​​"heating without burning" can heat the tobacco material just enough to emit flavor without igniting the tobacco material. Under normal circumstances, ordinary cigarettes will produce many harmful substances at high temperatures of 400℃ to 1000℃, while low-temperature heated cigarettes mostly work below 400℃, which greatly reduces the harmful substances in first-hand and second-hand smoke.

[0003] Low-temperature heated cigarettes that are convenient for smoking cessation are disclosed in Chinese patents 201810539989.1 and 201910012532.X, in which a moving cylinder for providing a heating space drives a heating element to move synchronously, thereby achieving separation of the heating element from the cigarette body. However, during the movement, friction will be generated between the moving cylinder and the fixed cylinder on the periphery, resulting in uneven movement. If a gap is left between the moving cylinder and the fixed cylinder to facilitate smooth movement of the moving cylinder, airflow will pass through the gap, resulting in turbulent airflow and a poor smoking experience for users. Summary of the invention

[0004] Based on this, it is necessary to provide an aerosol generating device, including a fixed cylinder, in which a movable cylinder for forming a heating space is arranged, and a sealing and lubricating member for sealing and lubrication is arranged between the outer wall of the movable cylinder and the inner wall of the fixed cylinder.

[0005] In a preferred example, a heating element is fixedly installed in the movable cylinder or the movable cylinder serves as a heating element.

[0006] In a preferred example, the sealing and sliding member is detachably connected between the movable cylinder and the fixed cylinder.

[0007] In a preferred example, the sealing and sliding member has a folding structure that can be telescoped along the moving direction of the moving cylinder.

[0008] In a preferred example, the folding structure is an alternating concave and convex folding structure.

[0009] In a preferred example, the sealing and sliding member is a sealing and sliding member made of a foldable material.

[0010] In a preferred example, the sealing and slippery member is a sealing and slippery member made of film, paper and / or cloth.

[0011] In a preferred example, the sealing and sliding member is a sealing and sliding member made of elastic rubber or elastic metal that can be elastically stretched.

[0012] In a preferred example, the sealing and slipping member is made of a heat-conducting and / or electrically-conducting material.

[0013] In a preferred example, the sealing and slippery member is a sealing and slippery member made of conductive metal, carbon-based thermally conductive material and / or polymer thermally conductive material.

[0014] In a preferred example, a shell is disposed outside the fixed cylinder, an air inlet is provided on the shell, a containing cylinder for containing the aerosol generating product is disposed inside the movable cylinder, a gap is provided between the outer wall of the containing cylinder and the inner wall of the movable cylinder, and the airflow entering from the air inlet is blocked by the sealing lubricant and finally converges into the gap.

[0015] It should be noted that a large number of technical features are recorded in the specification of the present application, which are distributed in various technical solutions. If all possible combinations of technical features of the present application (i.e., technical solutions) are to be listed, the specification will be too long. In order to avoid this problem, the various technical features disclosed in the above-mentioned invention content of the present application, the various technical features disclosed in the various embodiments and examples below, and the various technical features disclosed in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions are all deemed to have been recorded in this specification), unless the combination of such technical features is technically infeasible. For example, in one example, feature A+B+C is disclosed, and in another example, feature A+B+D+E is disclosed, and features C and D are equivalent technical means that play the same role. Technically, only one can be used, and it is impossible to use them at the same time. Feature E can be combined with feature C technically, then the solution of A+B+C+D should not be deemed to have been recorded because it is technically infeasible, and the solution of A+B+C+E should be deemed to have been recorded.

[0016] The aerosol generating device of the embodiment of the present invention designs a sealing and lubricating member between the outer wall of the movable cylinder and the inner wall of the fixed cylinder, so that the airflow only flows through a preset airflow channel, thereby avoiding airflow chaos and not affecting the smoothness of the movement of the movable cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic cross-sectional view of an aerosol generating device provided in one embodiment of the present invention;

[0018] Figure 2 for Figure 1 A partial enlarged view of the aerosol generating device shown. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In the invention, when an element is referred to as being "fixed to" another element, unless specifically limited to "directly", it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, unless specifically limited to "directly", it may be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly connected" or "directly fixed", there is no intermediate element. The various objects in the drawings of the embodiments are drawn in proportions for ease of enumeration and description, rather than in proportions of actual components.

[0021] The "aerosol generating product" described in the embodiments of the present invention refers to a product containing tobacco material and capable of generating aerosol, such as smoke or mist, by heating, such as an aerosol generating product, a cigarette cartridge or a cigarette, preferably a disposable product. The aerosol generating product itself cannot provide electrical energy.

[0022] The "aerosol generating device" described in the embodiments of the present invention refers to a device for heating an aerosol generating product, such as a smoking device. The aerosol generating device can directly provide heat energy to heat the aerosol generating product, or provide electrical energy to the aerosol generating product, and the aerosol generating product converts the electrical energy into heat energy to heat the smoking material.

[0023] The "smoking material" described in the embodiments of the present invention refers to a smoking substance, which is a substance that can produce odor and / or nicotine and / or smoke after heating or burning, that is, a substance that can be atomized, that is, an aerosol-generating substance. The smoking material can be solid, semi-solid and liquid. Solid smoking materials are often processed into thin sheets due to considerations such as air permeability, assembly and production, so they are also commonly called thin sheets, and filamentous sheets are also called thin sheet filaments. The smoking materials discussed in the embodiments of the present invention can be natural or synthetic smoking liquid, smoking oil, smoking glue, smoking paste, tobacco, tobacco leaves, etc. For example, synthetic smoking materials contain glycerin, propylene glycol and nicotine. The smoking liquid is liquid, the smoking oil is oily, the smoking glue is gel-like, the smoking paste is paste-like, the tobacco shreds include natural or artificial or extracted tobacco shreds, and the tobacco leaves include natural or artificial or extracted tobacco leaves. The tobacco material can be heated in a form sealed by other substances, such as stored in a thermally degradable package, such as a microcapsule, and after heating, the desired volatile substances are extracted from the degradable or porous sealing package.

[0024] The tobacco material described in the embodiment of the present invention may contain nicotine or may not contain nicotine. The tobacco material containing nicotine may include natural tobacco leaf products, at least one of tobacco liquid, tobacco oil, tobacco glue, tobacco paste, tobacco shreds, tobacco leaves, etc. made from nicotine as raw materials. The tobacco liquid is water-like, the tobacco oil is oily, the tobacco glue is gel-like, the tobacco paste is paste-like, the tobacco shreds include natural or artificial or extracted tobacco shreds, and the tobacco leaves include natural or artificial or extracted tobacco leaves. The tobacco material without nicotine mainly contains flavor substances, such as spices, which can be atomized to simulate the smoking process and to achieve the purpose of quitting smoking. In one embodiment, the spices include mint oil. The tobacco material may also include other additives, such as glycerol and / or propylene glycol.

[0025] See also Figure 1-2 As shown, the present invention provides an aerosol generating device, including a housing 1 and a power source for powering, the power source preferably adopts a battery 2, and the power source can also be a solar panel, etc. The battery 2 is built into the housing 1. Preferably, a control circuit can be added, arranged on the circuit board, including but not limited to overcurrent protection control, temperature control, charging control, discharging control, heating mode control (continuous, pulse, temperature controlled heating, electromagnetic induction heating, etc.), etc., and integrated with the battery 2 inside the housing 1.

[0026] The aerosol generating device includes a fixed cylinder 3, which is fixed and immovable. The housing 1 is sleeved outside the fixed cylinder 3. A movable cylinder 4 for forming a heating space is arranged inside the fixed cylinder 3, and the movable cylinder 4 moves relative to the fixed cylinder. The movable cylinder 4 is driven by a driver 5, and the driver 5 includes but is not limited to a micro motor, a micro motor, etc. In some embodiments, a laterally extending mounting seat is arranged inside the movable cylinder 4, and a heating element 6 is fixedly mounted on the mounting seat. The heating element 6 includes but is not limited to a sheet, a rod, a rod, a spiral, a corrugated shape, etc. The heating element 6 is made of a heat-conducting material, generates heat by energizing, and then heats the aerosol generating product 100. The heating element 6 is fixedly connected to the movable cylinder 4, and the heating element 6 moves synchronously with the movable cylinder 4. In other embodiments, the movable cylinder 4 itself is made of a heat-conducting material, serves as a cylindrical heating element, and is energized for heating, and is used to heat the aerosol generating product 100.

[0027] There is a gap space 30 between the outer wall of the moving cylinder 4 and the inner wall of the fixed cylinder 3, and a sealing and sliding member 7 is arranged between the outer wall of the moving cylinder 4 and the inner wall of the fixed cylinder 3. The sealing and sliding member 7 is used to seal the gap space 30 and slide. The sealing and sliding member 7 seals the gap space 30 while still allowing the moving cylinder 4 to slide without friction and without hindrance, thereby achieving the smoothness of the movement of the moving cylinder 4 and avoiding the airflow from entering and causing the airflow to run wild, killing two birds with one stone. One end of the sealing and sliding member 7 is fixed, and one end of the sealing and sliding member 7 can be connected to any position, can be connected to the fixed cylinder 3, and can also be connected to other parts except the fixed cylinder; the other end of the sealing and sliding member 7 moves synchronously with the moving cylinder 4, and the other end of the sealing and sliding member 7 can be connected to any position on the moving cylinder 4. In some embodiments, the sealing and sliding member 7 is connected between the moving cylinder 4 and the fixed cylinder 3, and the connection methods between the sealing and sliding member 7 and the moving cylinder 4 and the fixed cylinder 7 include but are not limited to integral molding, bonding, welding, etc. Furthermore, the sealing and slipping member 7 is detachably connected between the movable cylinder 4 and the fixed cylinder 3, and the detachable connection methods include but are not limited to detachable connection by hanging buckles, tying, snaps, buckles, buckling structures, fastening components, etc.

[0028] In some embodiments, the sealing and slipping member 7 has a folding structure that is telescopic along the moving direction of the moving cylinder 4. The folding method of the folding structure is not limited. As long as the required telescopic effect can be generated by folding, it is within the protection scope of the present invention. Further, the folding structure preferably adopts a folding structure with alternating concave and convex, which can be similar to a zigzag folding structure with alternating concave and convex, or similar to a corrugated folding structure with alternating concave and convex, etc. Among them, the sealing and slipping member 7 can be made of any material as long as it has a telescopic folding structure. Since the smoke formed in the shell 1 will fall onto the sealing and slipping member 7 after cooling during the process of the aerosol generating product being inhaled by the user, it is in the form of oil, etc., and long-term deposition will affect the smoothness of telescopic and sliding. Therefore, further, the sealing and slipping member 7 preferably adopts a heat-conducting and / or conductive material, so that heat can be generated by heat transfer or electricity can be turned on to generate heat, and the deposited smoke oil can be evaporated and dissipated. Conductive materials include but are not limited to gold, silver, iron, steel, copper, aluminum, nickel and their alloys. Thermal conductive materials include but are not limited to polymer thermal conductive materials, metal-filled polymer thermal conductive materials, carbon-based thermal conductive materials, etc., such as carbon black, carbon black, carbon powder, activated carbon, porous carbon, mesophase carbon microspheres, graphene, graphene oxide, reduced graphene oxide, graphyne, carbon nanotubes, carbon nanotube films, carbon fibers, carbon fiber films, carbon films, carbon fiber cloth, polyimide heating films, etc.

[0029] In other embodiments, the sealing slipper is a sealing slipper made of a foldable material. Foldable materials include, but are not limited to, films, paper, cloth, etc., such as films, paper or cloth formed by soft plastics, silicone, rubber, plastic, metal, thermally conductive polymers, carbon-based thermally conductive materials, etc. That is to say, in this embodiment, the sealing slipper is not a sealing slipper with a formed folding structure, but folds only during use. Since the smoke formed in the shell 1 will fall onto the sealing slipper 7 after cooling during the process of the aerosol generating product being inhaled by the user, and is in an oily state, long-term deposition will affect the smoothness of its sliding. Therefore, further, the foldable sealing slipper 7 preferably adopts a foldable material that is thermally and / or electrically conductive, so that heat can be transferred to generate heat or electricity can be turned on to generate heat, and the deposited smoke oil can be evaporated and dissipated. Conductive materials include, but are not limited to, gold, silver, iron, steel, copper, aluminum, nickel and their alloys. The heat-conducting material includes, but is not limited to, a polymer heat-conducting material, a metal-filled polymer heat-conducting material, a carbon-based heat-conducting material, etc., such as carbon black, carbon black, carbon powder, activated carbon, porous carbon, mesophase carbon microspheres, graphene, graphene oxide, reduced graphene oxide, graphyne, carbon nanotubes, carbon nanotube films, carbon fibers, carbon fiber films, carbon films, carbon fiber cloths, polyimide heating films, etc. In some other embodiments, the sealing and sliding member 7 is a sealing and sliding member made of elastic and retractable elastic glue or elastic metal. The elastic glue includes, but is not limited to, rubber, silicone, elastic plastic, etc. The elastic metal includes, but is not limited to, copper, beryllium copper, steel, etc. Since the smoke formed in the shell 1 during the process of the aerosol generating product being inhaled by the user will fall onto the sealing and sliding member 7 after cooling, and will be in the form of oil, etc., and long-term deposition will affect the smoothness of its sliding. Therefore, further, the sealing and sliding member 7 preferably adopts a heat-conducting and / or conductive elastic glue or elastic metal, so that heat can be generated by heat transfer or electricity can be turned on to generate heat, and the deposited smoke oil can be evaporated and dispersed. The conductive elastic metal may be copper or beryllium copper. The thermally conductive elastic adhesive may be an elastic adhesive containing a conductive metal.

[0030] In some embodiments, Figure 2As shown, the housing 1 sleeved on the outer periphery of the fixed cylinder 3 is provided with an air inlet 11 for introducing airflow when the aerosol generating product 100 is inhaled. An inner supporting wall 12 is attached to the inner wall of the housing 1, and a gap 10 is provided between the inner supporting wall 12 and the outer wall of the moving cylinder 4, and the gap 10 is communicated with the inner space of the housing 1. A receiving cylinder 8 for accommodating the aerosol generating product 100 is provided in the moving cylinder 4, and a gap 20 is provided between the outer wall of the receiving cylinder 8 and the inner wall of the moving cylinder 4, and the gap 20 is communicated with the inner space of the housing 1. The airflow entering from the air inlet 11 flows through the gap 10 between the inner support wall 12 and the outer wall of the movable cylinder 4, enters the internal space of the shell 1, and then enters the gap 20 between the outer wall of the accommodating cylinder 8 and the inner wall of the movable cylinder 4, forming a complete airflow channel. Due to the designed sealing and slippery part 7, the airflow will not enter the gap space 30 between the outer wall of the movable cylinder 4 and the inner wall of the fixed cylinder 3, thereby avoiding the airflow from running around and affecting the inhalation experience of the aerosol generating product 100, and at the same time will not affect the smoothness of the normal movement of the movable cylinder 4.

[0031] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An aerosol generating device, comprising a fixed cylinder, wherein a movable cylinder for forming a heating space is arranged inside the fixed cylinder, characterized in that: A sealing and sliding member for sealing and sliding is arranged between the outer wall of the movable cylinder and the inner wall of the fixed cylinder, and the sealing and sliding member has a folding structure that can be extended and retracted along the moving direction of the movable cylinder; one end of the sealing and sliding member is connected to the fixed cylinder, and the end of the sealing and sliding member connected to the fixed cylinder is fixed, and the other end of the sealing and sliding member is connected to the movable cylinder, and the other end of the sealing and sliding member moves synchronously with the movable cylinder.

2. The aerosol generating device according to claim 1, characterized in that: A heating element is fixedly installed in the movable cylinder or the movable cylinder serves as the heating element.

3. The aerosol generating device according to claim 1, characterized in that: The sealing and sliding member is detachably connected between the moving cylinder and the fixed cylinder.

4. The aerosol generating device according to claim 1, characterized in that: The folding structure is an alternating concave and convex folding structure.

5. The aerosol generating device according to claim 1, characterized in that: The sealing and sliding piece is made of foldable material.

6. The aerosol generating device according to claim 5, characterized in that: The sealing and slippery member is a sealing and slippery member made of film, paper and / or cloth.

7. The aerosol generating device according to claim 1, characterized in that: The sealing and sliding member is a sealing and sliding member made of elastic rubber or elastic metal which can be elastically stretched and contracted.

8. The aerosol generating device according to claim 1, characterized in that: The sealing and slipping member is a sealing and slipping member made of a heat-conducting and / or electrically-conducting material.

9. The aerosol generating device according to claim 8, characterized in that: The sealing and slipping part is a sealing and slipping part made of conductive metal, carbon-based heat-conducting material and / or polymer heat-conducting material.

10. The aerosol generating device according to claim 1, characterized in that A shell is disposed outside the fixed cylinder, an air inlet is provided on the shell, a containing cylinder for containing aerosol generating products is disposed inside the movable cylinder, a gap is provided between the outer wall of the containing cylinder and the inner wall of the movable cylinder, and the airflow entering from the air inlet is blocked by the sealing lubricant and finally converges into the gap.

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