A blanking type granular aerosol generating article with a spiral structure and an aerosol generating system

Abstract

The present invention discloses a blanking type particulate aerosol generating article having a spiral structure, which comprises a main body part and an outer sleeve (5) located outside the main body part; the main body part comprises a filtering component (2) and a hollow component (3), and an aerosol source material particle component (4) is arranged in the hollow cavity of the hollow component (3); the sealing bottom surface (52) of the outer sleeve (5) seals the aerosol source material particle component (4) in the hollow component (3); the outer sleeve (5) can axially move relative to the main body part to form a cavity (6), and the aerosol source material particle component (4) accommodated in the hollow component (3) falls into the cavity (6) under the action of gravity, and an air flow channel (7) is formed in the hollow cavity area of the hollow component (3). The outer side of the outer sleeve (5) has a first thread structure (53), and the aerosol generating article is screwed into the aerosol generating article accommodating cavity of the aerosol generating appliance in a spiral manner through thread matching.

Description

Technical Field

[0001] The present invention belongs to the field of aerosol-generating articles, and in particular to the field of aerosol-generating articles using aerosol source material particles. More specifically, it relates to a gravity-fed particulate aerosol-generating article with a spiral structure and an aerosol-generating system. Background Art

[0002] Particulate aerosol-generating articles are a new type of heat-not-burn (HNB) aerosol-generating articles in recent years. They use aerosol source material particles instead of aerosol source material sheets as the aerosol-generating material. The aerosol source material particles are heated more uniformly than the aerosol source material sheets, and the aerosol diffuses more smoothly along the gaps between the particles than along the gaps between sheet-like materials. Therefore, they are deeply loved by consumers.

[0003] Particulate aerosol-generating articles are known products on the market. Refer to the attached Figure 1 to illustrate its structure: Its main structure is an integrated outer sleeve X1, whose far lip end is sealed by a sealing film X2, and then aerosol source material particles X3 are filled into it to form a particulate section. A multi-vented firmware section (commonly known as a "gear part") X4 is provided downstream of the particulate section, and then an air flow channel section X5 is left for aggregating and containing the aerosol (sometimes the air flow channel section X5 is a separate cavity, or sometimes the air flow channel section X5 is a hollow rod). Downstream of the air flow channel section X5 is a filter section X6, which also serves as a mouthpiece for the user to hold in the mouth. When using this aerosol-generating article, the far lip end is inserted into a heating appliance, and the heating appliance has a heating element to heat the aerosol source material particles to release gaseous flavor components. The gaseous flavor components are condensed into visible aerosol in the air flow channel section X5 when encountering cold air, and then the aerosol enters the user's mouth after being filtered by the filter section.

[0004] Among them, the air flow channel section X5 is crucial for aerosol formation. According to aerosol science theory, the gaseous flavor components released by heating need to encounter cold to condense into solid or liquid particles, and these solid or liquid particles need to be suspended in the air to form visible aerosol (commonly known as "smoke" or "fog" or collectively "smoke and fog"). Therefore, in existing particulate aerosol-generating articles, this air flow channel section X5 must be provided.

[0005] In addition, since the particles are loose and have fluidity, if not constrained, when the aerosol-generating article is placed horizontally or inverted, the particles will inevitably flow downstream to the air flow channel section X5 on a large scale, resulting in a significant reduction in the particles that can be directly heated by the heating element. Naturally, the released flavor components and the amount of aerosol generated subsequently will also decrease. To ensure that the particles are fully heated, the particles must be constrained within a limited space near the heating element. This constraint is currently achieved by setting a sealing film X2 upstream of the particle section and providing a multi-vent firmware section X4 downstream of the particle section. The two-end constraint prevents the particles from flowing around.

[0006] The sealing film X2 is usually a highly breathable thin paper, and then it is pasted onto the upstream end face of the outer sleeve X1 by means of bonding. The process of pasting this sealing film X2 is complex and inefficient, and special equipment for pasting the sealing film is required. Additionally, due to factors such as the end faces of the outer sleeve X1 not being in the same plane, having burrs, defects on the surface of the thin paper, and uneven glue application, the sealing film is not firmly pasted. During subsequent production, the sealing film that seals the mouth of the aerosol-generating article comes off, causing the internal stored particle material to leak, which not only pollutes the production environment but also causes certain losses of other materials and affects production efficiency. The current particulate heating cigarette is made by using a sealing film for sealing and filling the particles. There are problems of low automation, low sealing success rate (and it is difficult to detect), and low production efficiency of the aerosol-generating article. When in use, the sealing film is punctured for heating, and the particles spill out after the aerosol-generating article is pulled out of the aerosol-generating device, resulting in difficult cleaning of the aerosol-generating device.

[0007] The material of the multi-vent firmware section X4 is usually ceramic or silicone. Its outer wall is firmly pasted on the inner wall of the paper tube by an adhesive. It has at least one axial through-hole X41 in the center and / or at least one peripheral ventilation groove X42 on its outer periphery. Their sizes are all such that smoke can pass through but the aerosol source material particles are not allowed to pass through, which not only blocks the aerosol source material particles but also can transmit the flue gas. However, the presence of the multi-vent firmware section brings about an increase in cost and many operational inconveniences to the industrial manufacturing of particulate aerosol-generating articles. Therefore, those skilled in the art have always hoped to eliminate this multi-vent firmware section. However, after eliminating the multi-vent firmware section, it is necessary to set up an air flow channel section for aggregating and accommodating the aerosol downstream of the particle section, and this section can also constrain the scattered aerosol source material particles, presenting a dilemma.

[0008] In addition, the aerosol source material particles of existing particulate aerosol generating products are all located at the upstream of the aerosol generating products (the end face is only separated from the outside world by a thin sealing film). During transportation and storage, the aerosol source material particles are easily affected by the outside world. In addition, in order to ensure that the aerosol source material particles are more easily heated to generate aerosols during inhalation, and in order to better release the generated aerosols, the aerosol source material particles need to be stacked as loosely as possible and not too tightly. However, this will result in a large contact area between the aerosol source material particles and the air during transportation and storage, thereby causing the loss of additives such as flavors, fragrances, or smoke-generating agents added to the aerosol source material particles.

[0009] In addition, in order to improve the cooling effect of smoke in existing products, it is usually necessary to form vents on the side walls of the aerosol generating product so as to introduce ambient air into the air flow channel inside the aerosol generating product, mix with the smoke, and cool the smoke. When not inhaling, that is, during the transportation or storage of the aerosol generating product, the presence of the vents will allow air to enter the aerosol generating product and come into contact with the aerosol source material particles to a greater or lesser extent, thereby causing the loss of additives such as flavors, fragrances or smoke-generating agents added to the aerosol source material particles, or moisture in the outside air enters the aerosol generating product through the vents, which can easily cause the aerosol source material particles to become damp, which is not conducive to the preservation of the aerosol source material particles.

[0010] Therefore, how to remove the sealing film and the multi-hole firmware section and still complete the restraint of the scattered aerosol source material particles and ensure that the generated aerosol can be smoothly delivered to the filtration section, and further, how to ensure that the aerosol source material particles are not at the upstream of the aerosol generating product during transportation and storage, as well as the setting of the vents, are problems that people are eager to solve.

[0011] The present invention aims to solve the above-mentioned problems. Summary of the invention

[0012] The first aspect of the present invention provides a falling-type particle-type aerosol generating product having a spiral structure, which comprises a main body portion and an outer sleeve 5 located outside the main body portion;

[0013] The main body comprises an inner tube 1 and a filter component 2 and a hollow component 3 arranged in sequence from the proximal lip end to the distal lip end in the inner tube 1, wherein the hollow cavity of the hollow component 3 contains an aerosol source material particle component 4;

[0014] The outer sleeve 5 has an open top 51 and a sealed bottom surface 52, wherein the open top 51 is located on the side of the filter component 2, and the sealed bottom surface 52 is located on the side of the hollow component 3. The sealed bottom surface 52 seals the aerosol source material particle component 4 in the hollow component 3;

[0015] The outer sleeve 5 can move axially relative to the main body portion, so that there is an axial distance between the upstream end face of the hollow component 3 and the sealed bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5, and the aerosol source material particle component 4 in the hollow component 3 moves into the cavity 6.

[0016] The outer side of the outer sleeve 5 near the sealed bottom surface 52 has a first thread structure 53.

[0017] Among them, by manually pulling the outer sleeve 5 or the main body part, the outer sleeve 5 is axially moved relative to the main body part. That is to say, before the aerosol-generating article enters the aerosol-generating appliance, the consumer manually pulls the outer sleeve 5 to axially move the outer sleeve 5 relative to the main body part, so that there is an axial distance between the upstream end face of the hollow member 3 and the bottom face 52 of the seal. This axial distance forms a cavity 6 by the outer sleeve 5, and the aerosol source material particle member 4 in the hollow member 3 moves into the cavity 6, and the aerosol-generating article reaches the suction state position. Then, the aerosol-generating article in the suction state position is loaded into the aerosol-generating appliance. Here, the loading is not the previous direct insertion, but by the way of screwing in after thread matching. The technical solution to achieve this function is that the outer side of the outer sleeve 5 near the bottom face 52 of the seal has a first thread structure 53, and the aerosol-generating article receiving cavity of the aerosol-generating appliance used in cooperation therewith has a second thread structure matching the first thread structure 53. Here, the meaning of matching is that the two thread structures can be engaged, so as to complete the function of screwing the aerosol-generating article into the aerosol-generating article receiving cavity of the aerosol-generating appliance. The purpose of screwing the aerosol-generating article into the aerosol-generating article receiving cavity by the way of threading is that: since the consumer has manually pulled out the outer sleeve 5 from the cavity 6 before the aerosol-generating article enters the aerosol-generating article receiving cavity, if the aerosol-generating article is directly inserted downward into the aerosol-generating article receiving cavity at this time, the aerosol-generating article receiving cavity will surely give an upward reaction force to the outer sleeve 5 of the aerosol-generating article, and this reaction force will push the outer sleeve 5 a certain distance towards the near lip end to a certain extent, so that the cavity 6 formed by the consumer's pulling out becomes smaller, and even the aerosol source material particles may be pushed back into the hollow cavity of the hollow member, which is not conducive to the next suction. By using the way of thread structure matching to screw the aerosol-generating article in, due to the existence of the thread and the rotation entry, the outer sleeve 5 hardly receives an upward reaction force, which is more conducive to the retention of the cavity 6.

[0018] Adopting the method of first pulling out the cavity 6 and then screwing the aerosol-generating article into the aerosol-generating article receiving cavity facilitates directly starting the heating program after the aerosol-generating article enters the aerosol-generating appliance, and avoids the cumbersome steps of having to pull out the cavity by the aerosol-generating appliance and then start the heating program after the aerosol-generating article enters the aerosol-generating appliance.

[0019] In the present invention, the upstream and downstream mentioned are determined according to the gas flow direction. More specifically, the far lip end is the upstream and the near lip end is the downstream.

[0020] In the present invention, the sequential arrangement does not limit that the two are tightly connected, but only limits the sequence. That is to say, other forms of units can be inserted between any two of them.

[0021] In the present invention, the inner tube 1 and the outer sleeve 5 are fixed by means of friction or slight adhesion, as long as relative movement between the two is prevented during transportation and storage, while relative movement between the two is allowed under the action of an external force.

[0022] Preferably, when the particulate aerosol-generating article is in the non-drawing state position, the sealing bottom surface 52 of the outer sleeve 5 seals the aerosol source material particle component 4 in the hollow component 3;

[0023] When the particulate aerosol-generating article is in the drawing state position, the outer sleeve 5 axially moves relative to the main body portion, and there is an axial distance between the upstream end surface of the hollow component 3 and the sealing bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5, and the aerosol source material particle component 4 accommodated in the hollow component 3 falls into the cavity 6 under the action of gravity, and the hollow cavity region of the hollow component 3 forms an air flow channel 7.

[0024] That is to say, when the particulate aerosol-generating article of the present invention is in the non-drawing state and the drawing state, both the aerosol source material particles and the sealing bottom surface 52 have two positions. When in the non-drawing state, the sealing bottom surface 52 seals the aerosol source material particle component 4 in the hollow component 3. When in the drawing state, the outer sleeve 5 axially moves relative to the main body portion, and there is an axial distance between the upstream end surface of the hollow component 3 and the sealing bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5, and the aerosol source material particle component 4 accommodated in the hollow component 3 falls into the cavity 6 under the action of gravity, and the hollow cavity region of the hollow component 3 forms an air flow channel 7.

[0025] During transportation and storage, since the aerosol source material particles are located in the cavity of the hollow component 3, the aerosol source material particles can be packed more tightly, with the least contact area with air, thereby ensuring better preservation of additives such as flavoring agents or fuming agents added to the aerosol source material particles. When entering the drawing state position, as the outer sleeve 5 axially moves relative to the main body portion, the aerosol source material particle component 4 falls into the cavity 6 under the action of gravity. Since the diameter of the cavity 6 is larger, the particles will be relatively looser after falling here, which is conducive to the generation and release of aerosol. And the hollow cavity originally accommodating the aerosol source material particles forms an air flow channel, providing space for the flow and convergence of aerosol.

[0026] Preferably, an opening 521 is provided at the bottom surface 52 of the seal, and the remaining part of the bottom surface 52 of the seal excluding the opening 521 serves as a protruding portion 522. A sealing component 523 is provided inside the outer sleeve 5. The protruding portion 522 confines the sealing component 523 inside the outer sleeve 5, and the sealing component 523 can block the opening 521. The sealing component 523 can axially move relative to the outer sleeve 5 under the action of an external force.

[0027] An indication mark is provided on the outer side of the inner tube 1, and the relative axial movement of the outer sleeve 5 and the main body part to the suction state position can be judged through the indication mark.

[0028] The aerosol-generating article with a spiral structure and a falling-type granular form of the present invention does not limit the manufacturing process. It can be in the form of filling, that is, each component is sequentially filled into the inner tube, or it can be in the form of composite wrapping, that is, each unit is arranged in sequence and then the inner tube is formed by wrapping and rolling. The material of the inner tube is selected from but not limited to paper, ceramic, heat-resistant resin or clay.

[0029] At the other end of the aerosol-generating article, the bottom surface 52 of the outer sleeve 5 is directly selected to confine the aerosol source material particles, avoiding the problem of unreliable adhesion and detachment of the sealing film.

[0030] Preferably, the inner tube 5 is made of a breathable material, and external air can enter its interior through the inner tube 5.

[0031] Preferably, the side wall of the hollow member 3 is provided with air vent holes 31 that radially penetrate the side wall. After the main body portion and the outer sleeve 5 axially move relative to each other to the suction state position, outside ambient air can enter the hollow cavity of the hollow member 3 through the air vent holes 31. The number of the air vent holes 31 is one or more. In order to improve the cooling effect of the smoke, it is usually necessary to form air vent holes on the side wall of the aerosol generating article so as to introduce outside ambient air into the air flow channel inside the aerosol generating article, mix it with the smoke, and cool the smoke. When not in suction, that is, during the transportation or storage of the aerosol generating article, the existence of the air vent holes will allow air to enter the inside of the aerosol generating article and contact the aerosol source material particles more or less, resulting in the loss of additives such as flavoring agents or fuming agents added to the aerosol source material particles, or moisture in the outside air entering the inside of the aerosol generating article through the air vent holes, which is also likely to cause the aerosol source material particles to become damp, and is not conducive to the preservation of the aerosol source material particles. In the aerosol generating article of the present invention, an outer sleeve 5 is further provided outside the main body portion, and the air vent holes are located on the main body portion. When the aerosol generating article is in the non-suction state of storage and transportation, the outer sleeve 5 can seal the air vent holes, and when the aerosol generating article is in the suction state, the outer sleeve 5 axially moves a certain distance relative to the main body portion to expose the air vent holes, and at this time, outside air can enter the inside of the aerosol generating article through the air vent holes. In addition, the air vent holes can also be used as an indication mark for the relative axial movement of the outer sleeve 5 and the main body portion to the suction state position. That is to say, when the outer sleeve 5 and the main body portion move axially relative to each other until the air vent holes are just completely exposed, it means that the suction state position is reached.

[0032] That is to say, the inner tube can be made of a breathable material or an airtight material. When it is made of a breathable material, air can be introduced into the inner tube through its own breathability. When it is made of an airtight material, air can be introduced into the inner tube by punching holes in the inner tube. Of course, preferably, the air vent hole method is adopted, so that the air vent hole can also be directly used as an indication mark for the extraction distance, killing two birds with one stone.

[0033] Preferably, the hollow member 3 is one section or multiple sections. The hollow member is a hollow rod with a hollow structure, such as a hollow acetate fiber rod, a hollow corrugated groove rod, a hollow tube with a gear structure, or a hollow paper tube. The structures of the hollow corrugated groove rod and the hollow tube with a gear structure can refer to the patent application with the application number 2021226872810 and the name of an aerosol generating article of the filling type containing a limiting member applied by the present applicant. The descriptions of the technical solutions and technical effects of the hollow corrugated groove rod and the hollow tube with a gear structure in this patent are applicable to the present invention.

[0034] The outer sleeve 5 is a paper tube, a stainless steel tube or a metal tube capable of receiving electromagnetic induction. Preferably, the outer sleeve 5 further has a mesh structure. More preferably, the outer sleeve 5 is selected from metal meshes that receive electromagnetic induction. In this case, for electromagnetic heating appliances, the outer sleeve 5 can act as a receptor to receive the magnetic induction generated by the electromagnetic generator of the aerosol generating appliance and be heated, thereby heating the aerosol source particles inside. This ensures that the aerosol generating appliance can be started after the aerosol generating article is screwed in spirally, and there is no need to set a start switch anymore.

[0035] Preferably, the clamping and sealing member 523 is selected from paper materials, polylactic acid sheets, acetate fibers or high-temperature resistant materials, where high-temperature resistant means being able to withstand temperatures of 250 - 320 °C. The material of the clamping and sealing member 523 can be breathable or non-breathable. When it is breathable, it can be applied to ordinary heating aerosol generating appliances that allow air to enter from the upstream end of the aerosol generating article. When it is non-breathable, it can be applied to sealed heating aerosol generating appliances that do not allow air to enter from the upstream end of the aerosol generating article.

[0036] A second aspect of the present invention provides an aerosol generating system, which includes the aerosol generating article described in the first aspect of the present invention, and an aerosol generating appliance;

[0037] The aerosol generating appliance includes an aerosol generating article receiving cavity, and the aerosol generating article receiving cavity has a second thread structure that matches the first thread structure 53. Through the first thread structure 53 and the second thread structure, the aerosol generating article can be screwed into the aerosol generating article receiving cavity of the aerosol generating appliance by rotation.

[0038] Preferably, the method of using the aerosol generating system is as follows:

[0039] A. When the particulate aerosol generating article is in the non-drawing state position, the sealing bottom surface 52 of the outer sleeve 5 blocks the aerosol source material particle component 4 in the hollow component 3;

[0040] B. Pull the outer sleeve 5 or the main body part to make them move axially relative to each other. There is an axial distance between the upstream end face of the hollow component 3 and the sealing bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5. The aerosol source material particle component 4 accommodated in the hollow component 3 drops into the cavity 6 under the action of gravity. The hollow cavity area of the hollow component 3 forms an air flow channel 7, and the aerosol generating article is in the drawing state position.

[0041] C. Snap the first threaded structure 53 of the aerosol-generating article onto the second threaded structure of the aerosol-generating appliance, and then rotate and screw the aerosol-generating article into the aerosol-generating article receiving cavity of the aerosol-generating appliance. The heating component of the aerosol-generating appliance is activated to heat the aerosol source material particle component 4 of the aerosol-generating article, thereby generating an aerosol.

[0042] The heating element of the aerosol-generating appliance used in conjunction with the aerosol-generating article of the present invention can be in the form of a circumferential heating cylinder or a central heating rod, and the form of heat generation by the heating element can be electromagnetic heating or resistance heating.

[0043] The aerosol-generating article of the present invention is more preferably applicable to a circumferential resistance heating aerosol-generating appliance and an electromagnetic heating aerosol-generating appliance. When the aerosol-generating appliance used in conjunction with it is a circumferential resistance heating aerosol-generating appliance, it is only necessary to axially position the heating cylinder heating element outside the aerosol source material particles. When the aerosol-generating appliance used in conjunction with it is an electromagnetic heating aerosol-generating appliance, it is only necessary to axially position the receptor capable of receiving a magnetic field outside the aerosol source material particles, or set it to the aerosol source material particles, or more simply, directly set the receptor material on the outer sleeve 5 wrapping the aerosol source material particles.

[0044] The above technical solutions can be freely combined on the premise of not being contradictory.

[0045] The present invention has the following beneficial effects:

[0046] 1. The aerosol-generating article of the present invention eliminates the multi-vent firmware section and the sealing film, but during transportation and storage, the particles can still be axially constrained at both ends by the sealing bottom surface 52 of the outer sleeve 5. When the particulate aerosol-generating article of the present invention is in the non-drawing state and the drawing state, both the aerosol source material particles and the sealing bottom surface 52 have two positions. When in the non-drawing state, the sealing bottom surface 52 seals the aerosol source material particle component 4 in the hollow component 3. When in the drawing state, the outer sleeve 5 axially moves relative to the main body portion, and there is an axial distance between the upstream end surface of the hollow component 3 and the sealing bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5, and the aerosol source material particle component 4 accommodated in the hollow component 3 drops into the cavity 6 under the action of gravity, and the hollow cavity region of the hollow component 3 forms an air flow channel 7.

[0047] 2. Since the aerosol source material particles are located in the cavity of the hollow component 3 during transportation and storage, the aerosol source material particles can be packed more tightly, with the least contact area with air, thus ensuring better preservation of additives such as flavoring agents or smoke generators added to the aerosol source material particles. When in the suction state position, as the outer sleeve 5 axially moves relative to the main body part, the aerosol source material particle component 4 drops into the cavity 6 under the action of gravity. Since the diameter of the cavity 6 is larger, the particles will be relatively looser after dropping here, which is conducive to the generation and release of aerosol. And the original hollow cavity where the aerosol source material particles are accommodated forms an air flow channel, providing space for the flow and convergence of aerosol.

[0048] 3. In order to improve the cooling effect of the smoke, it is usually necessary to form ventilation holes on the side wall of the aerosol generating article so as to introduce external ambient air into the air flow channel inside the aerosol generating article, mix with the smoke, and cool the smoke. During non-suction, that is, during the transportation or storage of the aerosol generating article, the existence of the ventilation holes will allow air to enter the inside of the aerosol generating article and contact the aerosol source material particles more or less, resulting in the loss of additives such as flavoring agents or smoke generators added to the aerosol source material particles, or moisture in the external air enters the inside of the aerosol generating article through the ventilation holes, which is also likely to cause the aerosol source material particles to get damp, and is not conducive to the preservation of the aerosol source material particles. In the aerosol generating article of the present invention, the outer sleeve 5 is also provided on the outside of the main body part, and the ventilation holes are located on the main body part. During the non-suction state of the aerosol generating article during storage and transportation, the outer sleeve 5 can seal the ventilation holes, and when the aerosol generating article is in the suction state, the outer sleeve 5 axially moves a certain distance relative to the main body part to expose the ventilation holes, and at this time, external air can enter the inside of the aerosol generating article through the ventilation holes. In addition, the ventilation holes can also be used as an indication mark for the relative axial movement of the outer sleeve 5 and the main body part to the suction state position, that is, when the outer sleeve 5 and the main body part move axially relative to each other until the ventilation holes are just completely exposed, it means that the suction state position is reached.

[0049] 4. The inner tube of the aerosol generating article of the present invention can be made of a breathable material or an airtight material. When it is made of a breathable material, air can be introduced into the inner tube through its breathability. When it is made of an airtight material, air can be introduced into the inner tube by punching holes in the inner tube. Of course, preferably, the ventilation hole method is adopted, so that the ventilation hole can also be directly used as an indication mark for the pulling-out distance, killing two birds with one stone.

[0050] 5. For the aerosol-generating article of the present invention, first, the outer sleeve 5 or the main body part is pulled to move them axially relative to each other, thereby creating a cavity 6 and bringing the aerosol-generating article to the suction state position. Then, the aerosol-generating article in the suction state position is inserted into the aerosol-generating device. The insertion here is not the previous direct insertion but is achieved by rotating and screwing in through thread matching. The technical solution for this function is that the outer sleeve 5 has a first thread structure 53 on the outer side near the sealing bottom surface 52, and the aerosol-generating article receiving cavity of the aerosol-generating device used in conjunction therewith has a second thread structure that matches the first thread structure 53. Here, "matching" means that the two thread structures can be engaged, thus completing the function of rotating and screwing the aerosol-generating article into the aerosol-generating article receiving cavity of the aerosol-generating device. The purpose of screwing the aerosol-generating article into the aerosol-generating article receiving cavity by threading is as follows: Since the consumer has manually pulled out the outer sleeve 5 to create the cavity 6 before the aerosol-generating article enters the aerosol-generating article receiving cavity, if the aerosol-generating article is directly inserted downward into the aerosol-generating article receiving cavity at this time, the aerosol-generating article receiving cavity will surely give an upward reaction force to the outer tube 5 of the aerosol-generating article, and this reaction force will push the outer tube 5 a certain distance towards the proximal end of the lip to a certain extent, thereby reducing the cavity 6 formed by the consumer's pulling, and even possibly pushing the aerosol source material particles back into the hollow cavity of the hollow component, which is not conducive to the next suction. By using the method of screwing the aerosol-generating article in through thread structure matching, due to the existence of the threads and the fact that it is screwed in by rotation, the outer tube 5 hardly receives an upward reaction force, which is more conducive to the retention of the cavity 6.

[0051] By first pulling out the cavity 6 and then rotating and screwing it into the aerosol-generating article receiving cavity, it is convenient for the aerosol-generating article to directly start the heating program after entering the aerosol-generating device, avoiding the cumbersome steps of having to pull out the cavity through the aerosol-generating device and then start the heating program after the aerosol-generating article enters the aerosol-generating device.

[0052] 6. The aerosol-generating article of the present invention is more preferably applicable to circumferential resistive heating aerosol-generating appliances and electromagnetic heating aerosol-generating appliances. When the aerosol-generating appliance used in conjunction with it is a circumferential resistive heating aerosol-generating appliance, it is only necessary to axially position the heating cylinder (heating element) outside the aerosol source material particles. When the aerosol-generating appliance used in conjunction with it is an electromagnetic heating aerosol-generating appliance, it is only necessary to axially position the receptor that can accept the magnetic field outside the aerosol source material particles, or set it to the aerosol source material particles, or more simply, directly set the receptor material on the outer sleeve that wraps the aerosol source material particles. The present invention greatly improves the production efficiency. By using circumferential heating or electromagnetic heating methods, the problem of particles falling into the aerosol-generating appliance is avoided, and the problem of cleaning the aerosol-generating appliance is also avoided. Description of the Drawings

[0053] Figure 1 It is a schematic structural view of a particulate aerosol-generating article in the prior art.

[0054] Figure 2 It is a three-dimensional schematic view of a multi-vented firmware segment in a particulate aerosol-generating article in the prior art.

[0055] Figure 3 It is a schematic structural view of the falling-feed particulate aerosol-generating article with a spiral structure of the present invention in a non-puffing state.

[0056] Figure 4 It is a schematic structural view of the falling-feed particulate aerosol-generating article with a spiral structure of the present invention in a puffing state.

[0057] List of Reference Numerals:

[0058] Figures 1-2 Among them: X1 - outer sleeve, X2 - sealing film, X3 - aerosol source material particles, X4 - multi-vented firmware segment, X5 - air flow channel segment, X6 - filter segment, X41 - axial through hole, X42 - peripheral ventilation groove;

[0059] Figures 3-4 Among them: 1 - inner tube, 2 - filter component, 3 - hollow component, 31 - ventilation hole, 4 - aerosol source material particle component, 5 - outer sleeve, 51 - top opening, 52 - sealing bottom surface, 53 - first thread structure, 521 - opening, 522 - protrusion, 523 - sealing component, 6 - cavity, 7 - air flow channel. Detailed Description of the Invention

[0060] The content of the present invention will be further described below through specific embodiments.

[0061] Those skilled in the art will understand that the following embodiments are only used to illustrate the present invention and should not be construed as limiting the scope of the present invention. For those embodiments not specified with specific techniques or conditions, the techniques or conditions described in the literature in this field or according to the product specifications shall be followed. For those materials or equipment without indicating the manufacturer, they are all conventional products that can be obtained by purchase.

[0062] Those skilled in the art can understand that unless specifically stated, the singular forms "a", "an", "the" and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the description of the present invention means the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say that an element is "connected" to another element, it can be directly connected to other elements, or there may also be intermediate elements. In addition, the "connection" used here may include wireless connection.

[0063] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more. The orientation or positional relationship indicated by terms such as "inside", "above", "below", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0064] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "provided with" 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 directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Those skilled in the art can understand that unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as the general understanding of those of ordinary skill in the art to which the present invention belongs. It should also be understood that those terms defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as herein.

[0066] Embodiment 1

[0067] As Figures 3-4As shown, the present embodiment provides a blanking type particulate aerosol generating article having a spiral structure, which includes a main body portion and an outer sleeve 5 located outside the main body portion;

[0068] The main body portion includes an inner tube 1, and a filter component 2 and a hollow component 3 arranged in sequence from the proximal lip end to the distal lip end inside the inner tube 1. An aerosol source material particle component 4 is provided in the hollow cavity of the hollow component 3;

[0069] The outer sleeve 5 has an open top 51 and a sealed bottom surface 52. The open top 51 is located on one side of the filter component 2, and the sealed bottom surface 52 is located on one side of the hollow component 3. The sealed bottom surface 52 seals the aerosol source material particle component 4 in the hollow component 3;

[0070] The outer sleeve 5 can move axially relative to the main body portion so that there is an axial distance between the upstream end face of the hollow component 3 and the sealed bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5, and the aerosol source material particle component 4 in the hollow component 3 moves into the cavity 6;

[0071] The outer sleeve 5 has a first thread structure 53 on the outer side near the sealed bottom surface 52.

[0072] In the present embodiment, the upstream and downstream are determined according to the gas flow direction. More specifically, the distal lip end is the upstream and the proximal lip end is the downstream.

[0073] When the particulate aerosol generating article is in the non - suction state position, the sealed bottom surface 52 of the outer sleeve 5 seals the aerosol source material particle component 4 in the hollow component 3;

[0074] When the particulate aerosol generating article is in the suction state position, the outer sleeve 5 moves axially relative to the main body portion. There is an axial distance between the upstream end face of the hollow component 3 and the sealed bottom surface 52. This axial distance forms a cavity 6 by the outer sleeve 5. The aerosol source material particle component 4 accommodated in the hollow component 3 drops into the cavity 6 under the action of gravity, and the hollow cavity region of the hollow component 3 forms an air flow channel 7.

[0075] The sealed bottom surface 52 has an opening 521, and the remaining part of the sealed bottom surface 52 except the opening 521 serves as a protrusion 522. A sealing component 523 is provided inside the outer sleeve 5. The protrusion 522 confines the sealing component 523 inside the outer sleeve 5, and the sealing component 523 can seal the opening 521. The sealing component 523 can move axially relative to the outer sleeve 5 under an external force.

[0076] The side wall of the hollow member 3 is provided with ventilation holes 31 that radially penetrate the side wall. After the main body portion and the outer sleeve 5 axially move relative to each other to the suction state position, ambient air can enter the hollow cavity of the hollow member 3 through the ventilation holes 31. The number of the ventilation holes 31 is one or more. In order to improve the cooling effect of the smoke, it is usually necessary to form ventilation holes on the side wall of the aerosol generating article so as to introduce ambient air into the air flow channel inside the aerosol generating article, mix with the smoke, and cool the smoke. When not in suction, that is, during the transportation or storage of the aerosol generating article, the existence of the ventilation holes will allow air to enter the inside of the aerosol generating article and contact the aerosol source material particles more or less, resulting in the loss of additives such as flavoring agents or fuming agents added to the aerosol source material particles, or moisture in the outside air entering the inside of the aerosol generating article through the ventilation holes, which is also likely to cause the aerosol source material particles to become damp, and is not conducive to the preservation of the aerosol source material particles. In the aerosol generating article of the present invention, an outer sleeve 5 is further provided outside the main body portion, and the ventilation holes are located on the main body portion. When the aerosol generating article is in the non-suction state of storage and transportation, the outer sleeve 5 can seal the ventilation holes, and when the aerosol generating article is in the suction state, the outer sleeve 5 axially moves a certain distance relative to the main body portion to expose the ventilation holes. At this time, outside air can enter the inside of the aerosol generating article through the ventilation holes. In addition, the ventilation holes can also be used as an indication mark for the relative axial movement of the outer sleeve 5 and the main body portion to the suction state position. That is to say, when the outer sleeve 5 and the main body portion move axially relative to each other until the ventilation holes are just completely exposed, it means that the suction state position is reached. At this time, the ventilation holes can also be directly used as an indication mark for the pulling-out distance, killing two birds with one stone.

[0077] The hollow member 3 is in two sections.

[0078] The snap-sealing member 523 is selected from paper materials.

[0079] The aerosol generating appliance that is used in matching with the above aerosol generating article includes an aerosol generating article accommodating cavity, and the aerosol generating article accommodating cavity is provided with a second thread structure that matches the first thread structure 53. Through the first thread structure 53 and the second thread structure, the aerosol generating article can be screwed into the aerosol generating article accommodating cavity of the aerosol generating appliance by rotation.

[0080] The specific usage methods of the aerosol generating article and the aerosol generating appliance are as follows:

[0081] A. When the particulate aerosol generating article is in the non-suction state position, the sealing bottom surface 52 of the outer sleeve 5 seals the aerosol source material particle member 4 in the hollow member 3;

[0082] B. Move the outer sleeve 5 or the main body part to axially move them relative to each other. There is an axial distance between the upstream end face of the hollow member 3 and the bottom face 52 of the seal. This axial distance forms a cavity 6 by the outer sleeve 5. The aerosol source material particle member 4 accommodated in the hollow member 3 drops into the cavity 6 under the action of gravity. The hollow cavity region of the hollow member 3 forms an air flow channel 7, and the aerosol generating article is in the suction state position.

[0083] C. Fasten the first thread structure 53 of the aerosol generating article with the second thread structure of the aerosol generating appliance, and then screw the aerosol generating article into the aerosol generating article accommodation cavity of the aerosol generating appliance. The heating component of the aerosol generating appliance starts to heat the aerosol source material particle member 4 of the aerosol generating article, thereby generating aerosol.

Claims

1. A blanking type granular aerosol generating article having a spiral structure, characterized in that, It comprises a main body and an outer sleeve (5) located outside the main body; The main body comprises an inner tube (1) and a filter component (2) and a hollow component (3) arranged in sequence from a proximal lip end to a distal lip end in the inner tube (1); an aerosol source material particle component (4) is provided in the hollow cavity of the hollow component (3); The outer sleeve (5) has a top opening (51) and a sealed bottom surface (52), wherein the top opening (51) is located on one side of the filter component (2), and the sealed bottom surface (52) is located on one side of the hollow component (3), and the sealed bottom surface (52) is used to seal the aerosol source material particle component (4) in the hollow component (3); The outer sleeve (5) can be axially moved relative to the main body so that there is an axial distance between the upstream end surface of the hollow component (3) and the sealing bottom surface (52), and the axial distance forms a cavity (6) by the outer sleeve (5), and the aerosol source material particle component (4) in the hollow component (3) moves into the cavity (6); The outer side of the outer sleeve (5) close to the sealing bottom surface (52) has a first thread structure (53); When the particle-type aerosol generating product is in a non-inhalation state, the sealing bottom surface (52) of the outer sleeve (5) seals the aerosol source material particle component (4) in the hollow component (3); When the particle-type aerosol generating product is in the inhalation state, the outer sleeve (5) moves axially relative to the main body, and an axial distance is provided between the upstream end surface of the hollow component (3) and the sealing bottom surface (52). The axial distance forms a cavity (6) by the outer sleeve (5), and the aerosol source material particle component (4) contained in the hollow component (3) falls into the cavity (6) under the action of gravity, and the hollow cavity area of the hollow component (3) forms an airflow channel (7); The sealing bottom surface (52) has an opening (521), and the remaining portion of the sealing bottom surface (52) after removing the opening (521) serves as a protrusion (522). The outer sleeve (5) has a sealing component (523), and the protrusion (522) is used to confine the sealing component (523) inside the outer sleeve (5). The sealing component (523) can block the opening (521), and the sealing component (523) can move axially relative to the outer sleeve (5) under the action of an external force.

2. The particulate aerosol-generating article according to claim 1, wherein The outer side of the inner tube (1) is provided with an indication mark, and the indication mark can be used to judge whether the outer sleeve (5) and the main body part have moved axially relative to each other to a suction state position.

3. The particulate aerosol-generating article according to claim 1, wherein, The hollow component (3) is one or more sections; the outer sleeve (5) is a paper tube, a stainless steel tube, or a metal tube capable of receiving electromagnetic induction.

4. The particulate aerosol-generating article according to claim 1, wherein The sealing component (523) is selected from paper, polylactic acid sheet, acetate fiber or high temperature resistant material, wherein high temperature resistant means being able to withstand a temperature of 250-320°C.

5. The particulate aerosol generating article according to claim 1, characterized in that, The inner tube (5) is made of an air-permeable material, and external air can enter the inner tube (5) through the inner tube (5).

6. The particulate aerosol-generating article according to claim 1, wherein The side wall of the hollow member (3) is provided with ventilation holes (31) that radially penetrate the side wall. After the main body portion and the outer sleeve (5) axially move relative to each other to the suction state position, external ambient air can enter the hollow cavity of the hollow member (3) through the ventilation holes (31), and the number of the ventilation holes (31) is one or more.

7. An aerosol generating system, characterized in that, It includes the aerosol - generating article according to claim 1, and an aerosol - generating device; The aerosol - generating device includes an aerosol - generating article receiving cavity, and the aerosol - generating article receiving cavity has a second thread structure that matches the first thread structure (53). Through the first thread structure (53) and the second thread structure, the aerosol - generating article can be screwed into the aerosol - generating article receiving cavity of the aerosol - generating device by rotation.

8. The aerosol generating system according to claim 7, characterized in that, Its usage method is as follows: A. When the particulate aerosol - generating article is in the non - suction state position, the sealing bottom surface (52) of the outer sleeve (5) seals the aerosol - source material particulate member (4) in the hollow member (3); B. Pull the outer sleeve (5) or the main body portion to axially move them relative to each other. There is an axial distance between the upstream end surface of the hollow member (3) and the sealing bottom surface (52), and this axial distance forms a cavity (6) by the outer sleeve (5). The aerosol - source material particulate member (4) accommodated in the hollow member (3) falls into the cavity (6) under the action of gravity, and an air - flow channel (7) is formed in the hollow cavity area of the hollow member (3), and the aerosol - generating article is in the suction state position; C. Engage the first thread structure (53) of the aerosol - generating article with the second thread structure of the aerosol - generating device, and then screw the aerosol - generating article into the aerosol - generating article receiving cavity of the aerosol - generating device. The heating component of the aerosol - generating device is activated to heat the aerosol - source material particulate member (4) of the aerosol - generating article, thereby generating an aerosol.

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