An aerosol generating device for cigarette sticks

Abstract

The present invention relates to an aerosol generating device for cigarette sticks, which comprises a cylindrical tube body. A one-way valve is provided at one end of the cylindrical tube body, a spherical part is provided inside the cylindrical tube body, and a filtering device is provided at the other end of the cylindrical tube body; a spiral guiding structure is provided on the inner wall of the cylindrical body, and the spherical part is made of a porous material. Through the design of the aerosol generating device in this technical solution, after the cigarette smoke is inhaled, it enters the cylindrical tube body through the one-way valve and is absorbed by the porous structure of the spherical part. Then, through the filtration of the filtering device, not only harmful components such as particulate matter in the smoke are filtered out, but also the smoke with a high initial aroma concentration forms a slow-release structure after entering the aerosol generating device and the spherical part. That is, the high-concentration aroma in the spherical part gradually mixes with the subsequent smoke during the subsequent suction process, achieving relatively stable aroma during the entire cigarette stick suction process and improving the suction feeling.

Description

Technical Field

[0001] The present invention belongs to the technical field of cigarettes, and particularly refers to an aerosol generating device for cigarette sticks, which is used to improve the aroma mixing during the smoking process of cigarette sticks. Background Art

[0002] The main source of the aroma of cigarettes is the fragrance inherent in the tobacco itself. However, the fragrance of the tobacco itself cannot meet the fragrance requirements of smokers. Currently, cigarette manufacturers, in order to adapt to the smoking sensations of smokers, all improve the aroma of cigarettes by adding fragrances.

[0003] The current fragrance addition methods usually include adding fragrance to the cut tobacco, adding fragrance to the filter rod, and adding fragrance by adding popping beads to the filter rod. There has already been a technique proposed to add fragrance to cigarette paper to improve the aroma richness in cigarettes.

[0004] Although these fragrance addition methods can improve the aroma of cigarettes, there are inevitable defects. During the smoking process, the initial aroma concentration is relatively high, and sometimes the aroma concentration is even too high to affect the smoking sensation. As the smoking progresses, the aroma concentration becomes lighter and lighter, and basically no aroma can be felt in the later stage, which affects the stability of the smoking sensation.

[0005] How to ensure the stability of the aroma during the whole smoking process of cigarettes has always been a research topic in this field. Summary of the Invention

[0006] The purpose of the present invention is to provide an aerosol generating device for cigarette sticks to solve the problem that the aroma concentration stability cannot be ensured during the smoking process of cigarettes in the prior art.

[0007] The present invention is achieved by the following technical solutions:

[0008] An aerosol generating device for cigarette sticks includes a cylindrical tube body. A one-way valve is provided at one end of the cylindrical tube body. A spherical part is provided inside the cylindrical tube body. A filtering device is provided at the other end of the cylindrical tube body;

[0009] A spiral guiding structure is provided on the inner wall of the cylindrical body. The spherical part is made of a porous material.

[0010] Preferably, the spherical part is spherical, fusiform or elliptical. When the spherical part is fusiform or elliptical, longitudinal grooves are provided on the outer surface of the spherical part.

[0011] Preferably, the spherical part includes a spherical part outer shell and a spherical part core part made of the same material. The spherical part outer shell wraps the spherical part core part. The porosity of the spherical part outer shell is less than that of the spherical part core part, and the pore diameter of the spherical part outer shell is smaller than the pore diameter of the spherical part core part.

[0012] Preferably, the minimum diameter of the spherical portion is the same as the inner diameter of the cylindrical tube body.

[0013] Preferably, the filtering device is a filter membrane or a filter sticker.

[0014] Preferably, a protrusion is provided in the middle of the filter device toward the cylindrical tube body.

[0015] Preferably, a cross-shaped cutout is provided in the middle of the filter device.

[0016] Preferably, the thickness of the periphery and the middle part of the filter device are different; the permeability of the periphery and the middle part of the filter device are different; the elastic coefficient of the periphery and the middle part of the filter device are different.

[0017] Preferably, the spiral guide structure is a spiral guide groove.

[0018] The beneficial effects of the present invention are:

[0019] Through the design of the aerosol generating device, the smoke of the cigarette enters the cylindrical tube body through the one-way valve after being inhaled, and is absorbed by the porous structure of the spherical part, and then filtered by the filtering device, not only filtering out harmful components such as particulate matter in the smoke, but also the smoke with a high initial aroma concentration forms a slow-release structure after entering the aerosol generating device and the spherical part, that is, the high-concentration aroma in the spherical part is gradually mixed with the subsequent smoke during the subsequent inhalation process, thereby achieving relative stability of the aroma during the entire cigarette smoking process and improving the smoking experience.

[0020] In the present technical solution, a spiral guide groove structure is provided on the inner side of the cylindrical tube body, so that the smoke entering the aerosol generating device produces a spiral motion, which is mixed with the disordered smoke passing through the spherical part and drives the flow change of the smoke. The flow change of the smoke improves the mixing of the aroma in the smoke, and on the other hand, is beneficial to the siphoning of the smoke containing a high concentration of aroma inhaled into the spherical part, which is beneficial to the stabilization of the aroma in the later stage of supplementing the inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the aerosol generating device for cigarettes of the present invention;

[0022] Figure 2 A side view of the filter device end of the aerosol generating device for cigarettes of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention in which the spherical portion is elliptical;

[0024] Figure 4This is a cross-sectional view of the aerosol generating device for cigarette sticks of the present invention.

[0025] Description of reference numerals

[0026] 1. Cylindrical tube body, 2. Check valve, 3. Spherical part, 4. Filter device, 11. Spiral flow guiding structure, 31. Longitudinal groove, 41. Protrusion, 42. Cross-shaped incision. Detailed implementation manners

[0027] The technical solution of the present invention will be described in detail below through embodiments. The following embodiments are only exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being construed as a limitation to the technical solution of the present invention.

[0028] As Figures 1 to 4 shown, the present application provides an aerosol generating device for cigarette sticks, including a cylindrical tube body 1. In the technical solution of the present application, the material of the cylindrical tube body is prepared from a lightweight material, such as plastic material or paper material, or a light metal material can also be used. Generally, from the perspective of safety, paper material is preferably used. Using a light metal material usually results in a higher weight of the cigarette stick and causes waste.

[0029] A spiral flow guiding structure 11 is provided on the inner wall of the cylindrical tube body 1. In this embodiment, the spiral flow guiding structure is a spiral flow guiding groove, which is used to guide the peripheral part of the smoke entering the aerosol generating device to improve the mixing degree with the relatively disordered smoke in other parts. In this technical solution, although there is a suction force during the smoking process, there is still a large amount of smoke with disordered directions before the smoke passes through the spherical part to the filter device and is sucked out of the aerosol generating device. Moreover, during the gap between the smoking actions of the smoker, it further promotes the mixing of the smoke in the aerosol generating device.

[0030] A check valve 2 is provided at one end of the cylindrical tube body 1. In the technical solution of the present application, the check valve adopts a check valve of conventional technology. Therefore, the check valve will not be described in the technical solution of the present application, and all check valves that can be used can be applied.

[0031] In the technical solution of the present application, the material of the spherical part 3 is usually a lightweight cotton ball, and its material can be prepared by compressing the fibers used in conventional filters at present, or by compressing plant fibers or paper, or can also be prepared from other lightweight porous materials.

[0032] The spherical part as a whole is spherical, fusiform or oval. Among them, the fusiform or oval spherical part has a larger volume than the spherical spherical part. On the other hand, the fusiform or oval shape will cause a change in the flow rate of the smoke inhaled into the filter, which is more conducive to reducing the suction resistance.

[0033] In the technical solution of the present application, when the spherical part 3 is fusiform or oval, longitudinal grooves 31 are provided on the outer surface of the spherical part. In this part of the technical solution, when the flue gas flows in the longitudinal grooves, especially during the sucking action, the flow rate of the flue gas changes, generating a siphon phenomenon for the flue gas with a high concentration of aroma in the space inside the spherical part. However, due to the design of the porosity of the spherical part housing, only part of the flue gas with a high concentration of aroma can be extracted and mixed with the subsequent flue gas to achieve the stability of the aroma concentration in the flue gas.

[0034] The spherical part includes a spherical part housing and a spherical part core made of the same material. The spherical part housing wraps the spherical part core. The porosity of the spherical part housing is less than that of the spherical part core, and the pore diameter of the spherical part housing is less than that of the spherical part core. Such a structure of the spherical part body, due to the density difference between the spherical part housing and the spherical part core, increases the volume of the spherical part body. Combining with the fact that both the pore diameter and porosity of the spherical part housing are less than those of the spherical part core, in addition to accommodating the initial flue gas with a high concentration of aroma, it also has a certain obstruction to the subsequent flue gas with a reduced aroma concentration entering the spherical part body.

[0035] In the technical solution of the present application, the diameter of the spherical part is adapted to the inner diameter of the cylindrical tube body. In this embodiment, the diameter of the spherical part is the same as the inner diameter of the cylindrical tube body, which can ensure that all the flue gas entering the aerosol generating device passes through the spherical part.

[0036] A filtering device 4 is provided at the other end of the cylindrical tube body. In the technical solution of the present application, the filtering device is a filter membrane or a filtering sticker. A convex part 41 is provided in the middle of the filtering device and extends into the cylindrical tube body. Such a structure makes the flue gas pass through the filtering device in different directions due to the convexity of the filtering device when the flue gas passes through the filtering device, and finally forms a mixture of flue gas in different directions in the oral cavity, so as to keep the impact on each part of the smoker's oral cavity stable, and thus bring a stable feeling of the whole flue gas to the smoker.

[0037] In other embodiments of the present application, a cross-shaped incision 42 is provided in the middle of the filtering device. The design of this part of the structure can ensure a reduction in the suction resistance of the flue gas in the filter.

[0038] In other embodiments of the present application, the thickness of the periphery and the middle of the filtering device is different. Usually, the thickness of the periphery is greater than that of the middle.

[0039] In other embodiments of the present application, the permeability of the periphery and the middle of the filtering device is different. Under normal circumstances, the permeability of the periphery is less than that of the middle. Since the permeability of the periphery is small and the direction of the smoke passing through the filtering device is basically parallel to the axial direction of the aerosol generating device, while the permeability of the middle is large, but the direction of the smoke changes greatly due to the structure of the aerosol generating device. After mixing with the smoke from the periphery, it is easier to make the overall smoke direction change more and the aroma in the smoke mix more evenly.

[0040] The elastic modulus of the periphery and the middle of the filtering device is different.

[0041] The above-mentioned aerosol generating device for cigarette is used inside the filter rod.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerosol generating device for a cigarette, characterized in that, It includes a cylindrical tube body, a one-way valve is provided at one end of the cylindrical tube body, a spherical part is provided inside the cylindrical tube body, and a filtering device is provided at the other end of the cylindrical tube body; A spiral flow guiding structure is provided on the inner wall of the cylindrical tube body, and the spherical part is made of a porous material; The spherical part is spindle-shaped or oval-shaped, and longitudinal grooves are provided on the outer surface of the spherical part; The spherical part includes a spherical part outer shell and a spherical part core part made of the same material. The spherical part outer shell wraps the spherical part core part. The porosity of the spherical part outer shell is smaller than that of the spherical part core part, and the pore diameter of the spherical part outer shell is smaller than that of the spherical part core part; A convex part is provided inside the cylindrical tube body from the middle of the filtering device; The filtering device is a filter membrane or a filtering sticker.

2. The aerosol generating device for a cigarette according to claim 1, characterized in that, A cross-shaped cut is provided in the middle of the filtering device.

3. The aerosol generating device for a cigarette according to claim 1, characterized in that, The thickness of the periphery and the middle of the filtering device is different; the permeability of the periphery and the middle of the filtering device is different; the elastic modulus of the periphery and the middle of the filtering device is different.

4. The aerosol generating device for a cigarette according to claim 1, characterized in that, The spiral flow guiding structure is a spiral flow guiding groove.

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