CN112841719A

CN112841719A - Filter tip and electronic cigarette

Info

Publication number: CN112841719A
Application number: CN202011645378.9A
Authority: CN
Inventors: 卢集伟; 邵志宇
Original assignee: SHENZHEN ZHIYE TECHNOLOGY CO LTD
Current assignee: Shenzhen Zhiye Biotechnology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-28
Anticipated expiration: 2040-12-31
Also published as: CN112841719B

Abstract

The invention discloses a filter tip and an electronic cigarette, wherein the filter tip comprises a core body, the core body defines a first cavity and a second cavity which are sequentially communicated along the smoke advancing direction: the first cavity is filled with a plurality of microparticles, and each microparticle comprises a shell and a physiologically active substance arranged in the shell; the second cavity is internally provided with a first silica gel plug and a second silica gel plug along the advancing direction of the flue gas, the first silica gel plug is provided with a first pore passage for the micro-particles to pass through, the second silica gel plug is provided with a second pore passage for the micro-particles to pass through, the second silica gel plug can be arranged in a rotating way relative to the first silica gel plug and is provided with an initial position and a working position, so that the second pore passage is disconnected with the first pore passage when the second silica gel plug is in the initial position, and the second pore passage is communicated with the first pore passage when the second silica gel plug is in the working position. The invention aims to provide a health-care electronic cigarette filter tip.

Description

Filter tip and electronic cigarette

Technical Field

The invention relates to the technical field of tobacco, in particular to a filter tip and an electronic cigarette.

Background

The electronic cigarette mainly comprises a power supply, tobacco tar, a heating system and a filter tip, and aerosol with specific smell is generated through heating and atomization. The core compound nicotine is extracted from tobacco, and is compounded with other essence accessories in a proper amount to prepare a liquid mixture, namely tobacco tar, and the electronic cigarette quickly heats the tobacco tar to realize atomization to form smoke so as to meet the requirements of consumers.

The electronic cigarette is an important progress of tobacco science and technology, removes carbon dust, tar and heavy metal of traditional combustion type cigarettes, and reduces health damage of the combustion type tobacco to tobacco consumers. The main function of an electronic cigarette filter in an electronic cigarette is to intercept large droplets of liquid in the tobacco tar from entering the mouth.

Disclosure of Invention

The invention mainly aims to provide a filter tip and an electronic cigarette, and aims to provide a health-care electronic cigarette filter tip.

To achieve the above object, the present invention proposes a filter comprising a core defining a first cavity and a second cavity communicating in sequence along the direction of travel of the smoke:

the first cavity is filled with a plurality of microparticles, and each microparticle comprises a shell and a physiologically active substance arranged in the shell;

the second cavity is internally provided with a first silica gel plug and a second silica gel plug along the advancing direction of the flue gas, the first silica gel plug is provided with a first pore passage for the micro-particles to pass through, the second silica gel plug is provided with a second pore passage for the micro-particles to pass through, the second silica gel plug can be arranged in a rotating way relative to the first silica gel plug and is provided with an initial position and a working position, so that the second pore passage is disconnected with the first pore passage when the second silica gel plug is in the initial position, and the second pore passage is communicated with the first pore passage when the second silica gel plug is in the working position.

Optionally, the particle size of the microparticles is 0.0001 to 1000 μm.

Optionally, the first duct is provided with a plurality of ducts, the second duct is provided with a plurality of ducts, and the plurality of first ducts and the plurality of second ducts are arranged in one-to-one correspondence.

Optionally, one end of the first silica gel plug opposite to the second silica gel plug is set as a connecting end;

the end face of the connecting end of the first silica gel plug is provided with an arc-shaped groove, the connecting end of the second silica gel plug is provided with a convex column in sliding fit with the arc-shaped groove, the arc-shaped groove is provided with a first end and a second end which are oppositely arranged, the groove wall of the arc-shaped groove is close to the first end and is provided with a first convex part, and the convex column is abutted to and matched with the first convex part when the second silica gel plug is positioned at the initial position, so that the second silica gel plug is opposite to the first silica gel plug.

Optionally, a second convex portion is arranged on a groove wall of the arc-shaped groove, the second convex portion is close to the second end, and when the second silica gel plug is located at the working position, the convex column is in abutting fit with the second convex portion, so that the second silica gel plug is fixed relative to the first silica gel plug.

Optionally, the outer surface of the shell is provided with a lubricating layer; and/or the presence of a gas in the gas,

the physiologically active substance comprises probiotics or fermentation products of the probiotics; and/or the presence of a gas in the gas,

the shell is made of one or more of cyclodextrin, gelatin, sodium alginate and acacia.

Optionally, the material of the lubricating layer comprises one or more of magnesium stearate, stearic acid, white oil, carnauba wax, food grade silica gel, and food wax.

Optionally, the filter further comprises a shell with two open ends, and the shell is sleeved on the core body; and/or the presence of a gas in the gas,

the first intracavity is equipped with both ends open-ended barrel, and is a plurality of the microparticle is located in the barrel.

Optionally, the core further includes a third cavity, the third cavity is disposed at an end of the first cavity away from the second cavity and communicated with the first cavity, and the third cavity is filled with a cooling material.

Furthermore, the invention also proposes an electronic cigarette comprising a filter as described above. The filter includes the core, the core is injectd and is followed first chamber and the second chamber that the flue gas advancing direction communicates in proper order:

According to the technical scheme, the first cavity is filled with the plurality of micro-particles, each micro-particle comprises the shell and the physiologically active substance arranged in the shell, so that when a user sucks the electronic cigarette, atomized airflow flowing through the core body is combined with the micro-particles to form aerosol, and then the aerosol enters the oral cavity together to be absorbed by an organism, so that the health care effect is achieved; meanwhile, the first silica gel plug and the second silica gel plug are arranged in the second cavity, when the second silica gel plug is located at an initial position, the first pore channel and the second pore channel are mutually disconnected, so that micro-particles are prevented from leaking, when a user needs to suck the electronic cigarette, the second silica gel plug is rotated to be rotated to a working position, and the first pore channel is communicated with the second pore channel, so that aerosol can be allowed to pass through.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of one embodiment of a filter rod provided by the present invention;

FIG. 2 is a schematic structural view of another embodiment of a filter rod provided by the present invention;

FIG. 3 is a schematic structural view of yet another embodiment of a filter rod provided by the present invention;

fig. 4 is a schematic structural view of a connection end of the first silicone plug in fig. 1;

figures 5 and 6 are gas chromatograms of an e-cigarette and a reference blank suction gas in example 1 in comparison;

fig. 7 and 8 are gas chromatograms of the electronic cigarette suction gas in example 2.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In order to provide health care function for electronic cigarette enthusiasts, the electronic cigarette filter 100 is filled with physiologically active substances, but the filter 100 is further improved by the invention because most of the physiologically active substances are difficult to atomize. The invention provides an electronic cigarette comprising a filter 100. Fig. 1 to 4 show an embodiment of a filter 100 according to the invention.

Referring to fig. 1 to 3, the filter 100 comprises a core defining a first cavity 11 and a second cavity 12 communicating in succession along the direction of travel of the smoke: the first cavity 11 is filled with a plurality of microparticles 2, each microparticle 2 comprises a shell and a physiologically active substance arranged in the shell; the second cavity 12 is provided with a first silica gel plug 31 and a second silica gel plug 32 along the smoke advancing direction, the first silica gel plug 31 has a first hole 311 for allowing the microparticles 2 to pass through, the second silica gel plug 32 has a second hole 321 for allowing the microparticles 2 to pass through, the second silica gel plug 32 can be rotatably arranged relative to the first silica gel plug 31 and has an initial position and a working position, so that when the second silica gel plug is located at the initial position, the second hole 321 is disconnected from the first hole 311, and when the second silica gel plug is located at the working position, the second hole 321 is communicated with the first hole 311.

According to the technical scheme, the first cavity 11 is filled with the plurality of microparticles 2, each microparticle 2 comprises the shell and the physiologically active substance arranged in the shell, so that when a user sucks the electronic cigarette, atomized airflow flowing through the core body is combined with the microparticles 2 to form aerosol, and then the aerosol enters the oral cavity together to be absorbed by an organism, so that the health care effect is achieved; meanwhile, the first silica gel plug 31 and the second silica gel plug 32 are arranged in the second cavity 12, when the second silica gel plug 32 is located at the initial position, the first pore passage 311 and the second pore passage 321 are disconnected from each other, so that the micro-particles 2 are prevented from leaking out, when a user needs to suck the electronic cigarette, the second silica gel plug 32 is rotated to the working position, the first pore passage 311 and the second pore passage 321 are communicated, and the aerosol can be allowed to pass through.

The core body is substantially a cylinder, and may be a cylinder, a prism, a square cylinder, a polygonal cylinder, or the like, which is not limited in the present invention. It should be noted that the above description of the shape is a broad concept, and may be understood as a structure with a similar or similar shape, and taking a cylinder as an example, the cylinder mentioned in this embodiment does not mean that the cross section is a narrow and absolutely regular circle, but may also be an ellipse, and in addition, the diameter of the cylinder may also be consistent or unequal in the length direction, which is not limited by the present invention.

One end of the core body is connected with the atomizer of the electronic cigarette, and the other end of the core body is a near-mouth end. Herein, the smoke traveling direction refers to the flowing direction of smoke oil airflow in the core when the electronic cigarette is smoked, namely the direction from the end of the core connected with the atomizer to the near end. In this embodiment, first chamber 11 and second chamber 12 lay in proper order along flue gas advancing direction, and first chamber 11 is close to the atomizer setting promptly, and during the suction, the flue gas passes through first chamber 11 earlier, passes through second chamber 12 again. Fill a plurality of microgranules 2 in the first chamber 11, when the user smoked the electron cigarette, when the atomizing air current that the tobacco tar formed flows through first chamber 11, can carry partial microgranule 2 and pass the oral cavity that the second chamber 12 got into the user, get into respiratory tract or alimentary canal afterwards, and then by the organism fully absorption.

For convenience of description, an end of the first silicone plug 31 facing the second silicone plug 32 is defined as a connecting end of the first silicone plug 31, and an end of the second silicone plug 32 facing the first silicone plug 31 is defined as a connecting end of the second silicone plug 32.

In order to ensure that the microparticles 2 can enter the oral cavity in order when the user sucks, and when the electronic cigarette is not used, the microparticles 2 are not easy to leak out of the second cavity 12, the embodiment is implemented by the first silica gel plug 31 and the second silica gel plug 32 in the second cavity 12, wherein the first silica gel plug 31 is arranged relatively close to the first cavity 11. The first silica gel plug 31 and the second silica gel plug 32 are porous plugs made of silica gel and have pore channel structures, when the electronic cigarette is not used, the first pore channel 311 and the second pore channel 321 are staggered and disconnected, and an outlet of the first pore channel 311 is blocked by an end face of a connecting end of the second silica gel plug 32, so that leakage of the microparticles 2 is avoided; when the user sucks the electronic cigarette, the second silicone plug 32 is rotated to the working position, so that the first hole 311 is communicated with the second hole 321, and in fig. 1 to 3, the second silicone plug 32 is in the working position. The pore sizes of the first pore passage 311 and the second pore passage 321 are subject to the condition that at least one microparticle 2 can pass through, and the pore size of the second pore passage 321 is not more than the sum of the particle sizes of 10-15 microparticles 2, so that, on one hand, aerosol can pass through the first pore passage 311 and the second pore passage 321 in sequence to be discharged out of the core body, and then enters the oral cavity; on the other hand, the second hole 321 also restricts the discharge of microparticles 2 in a large amount at a time, and functions to retain the microparticles 2 to some extent.

In practice, there are various implementations of the first bore 311 and the second bore 321. Specifically, in an embodiment, as shown in fig. 1, the first silicone plug 31 is provided with a plurality of holes 34, and the holes 34 are communicated with each other to form the first hole 311; in another embodiment, as shown in fig. 2, the first silicone plug 31 is provided with a plurality of through holes 33 penetrating through two ends of the first silicone plug 31, and the through holes 33 form the first hole 311; similarly, the second hole 321 may be composed of a plurality of interconnected holes 34, or may be composed of through holes 33. It should be noted that the specific implementation form of the first pore passage 311 and the specific implementation form of the second pore passage 321 are independent from each other and do not affect each other, when the first pore passage 311 is formed by communicating a plurality of holes 34, the second pore passage 321 may also be formed by the through hole 33, it is only required to ensure that when the second silicone plug 32 is at the working position, the inlet of the second pore passage 321 is communicated with the outlet of the first pore passage 311, and when the second silicone plug 32 is at the initial position, the outlet of the first pore passage 311 is blocked by the end face of the second silicone plug 32.

In addition, first pore 311 and second pore 321 all can be provided with a plurality ofly, and is a plurality of first pore 311 sets up with a plurality of second pore 321 one-to-one, so, when a plurality of first pore 311 and a plurality of second pore 321 one-to-one communicate, can keep the air current unblocked, increase flue gas flow for the flue gas is easily by the suction, thereby promotes user experience.

Further, in order to ensure that the second silicone plug 32 cannot easily rotate and shift when the second silicone plug 32 is located at the initial position, an arc-shaped groove 312 is formed in the end face of the connecting end of the first silicone plug 31, and a convex column in sliding fit with the arc-shaped groove 312 is formed in the connecting end of the second silicone plug 32. Referring to fig. 4, in the present embodiment, the arc-shaped groove 312 is concentric with the central axis of the first silicone plug 31, and when the second silicone plug 32 rotates, the convex column can slide along the arc-shaped groove 312. The arc-shaped groove 312 has a first end and a second end which are oppositely arranged, a first convex portion 3121 is arranged on the groove wall of the arc-shaped groove 312 at a position close to the first end, and the groove width of the arc-shaped groove 312 at the position is reduced due to the arrangement of the first convex portion 3121, so that when the second silica gel plug 32 is located at the initial position, the convex column is just located between the first convex portion 3121 and the first end, or between the first convex portion 3121 and the groove wall opposite to the first convex portion, at the moment, the convex column is pressed by the first convex portion 3121 in a supporting manner, so that the convex column is limited to slide towards the direction of the second end, and then the second silica gel plug 32 is fixed relative to the first silica gel plug 31, and the second silica gel plug 32 is limited at the initial position.

Further, a second convex portion 3122 is arranged on the groove wall of the arc-shaped groove 312 near the second end, the groove width of the arc-shaped groove 312 at the position is reduced due to the arrangement of the second convex portion 3122, so that when the second silica gel plug 32 is located at the working position, the convex column is just located between the second convex portion 3122 and the second end, or located between the second convex portion 3122 and the groove wall opposite to the second convex portion, at the moment, the convex column is pressed by the second convex portion 3122, so that the convex column is limited from sliding towards the direction of the first end, the second silica gel plug 32 is further fixed relative to the first silica gel plug 31, the second silica gel plug 32 is limited at the working position, and the smoothness of a smoke path of a user when using the electronic cigarette is ensured.

Each of the microparticles 2 is composed of a physiologically active substance and a shell enclosing the physiologically active substance. The physiologically active substance can be one or more of immobilized probiotics, fermentation product of probiotics, other natural active substances with health promoting and therapeutic effects, and extract thereof. The health care and treatment effects can include clearing heat from throat, benefiting throat, refreshing, improving memory, enhancing immunity, regulating intestinal flora, losing weight, improving skin, improving and assisting in reducing blood fat and blood sugar, resisting fatigue and the like. In this embodiment, the physiologically active substance is preferably a probiotic bacterium or a fermentation product of a probiotic bacterium.

In order to facilitate preservation and absorption by the body, the physiologically active substance may be processed into powder, and specifically, may be obtained by various means such as low-temperature pulverization, spray drying, lyophilization, and the like.

The material of the shell comprises one or more of cyclodextrin, gelatin, sodium alginate and Arabic gum, and the shell is wrapped, so that on one hand, the direct contact of the physiologically active substance with air can be avoided, the activity of the physiologically active substance is not affected, and on the other hand, the selection range of the physiologically active substance can be further expanded to active substances which are difficult to atomize, easy to oxidize and denature, poor in thermal stability and the like.

The particle size of the microparticles 2 is 0.0001 to 1000 μm. Within the particle size range, the micro-particles 2 can form solid aerosol with the air flow when the electronic cigarette is smoked, and the micro-particles 2 in micro-nano scale are easier to be absorbed by the human body.

In order to ensure smooth discharge of the microparticles 2, the outer surface of the shell is provided with a lubricating layer. Specifically, the outer surface of the shell of each microparticle 2 is provided with at least one lubricating layer, so that the fluidity among the microparticles 2 can be increased, and the adhesion among the microparticles 2 can be prevented. Wherein, the lubricating layer is made of one or more of magnesium stearate, stearic acid, white oil, carnauba wax, food-grade silica gel and food wax. In specific implementation, a certain amount of lubricant may be added to and mixed with the prepared microparticles 2, so that a lubricant layer may be formed on the surface layer of the shell of the microparticles 2.

The filter 100 further comprises a housing 41 with openings at both ends, and the housing 41 is sleeved on the core. Specifically, referring to fig. 3, the housing 41 is in a sleeve shape with two open ends, so as to define an accommodating space therein, and the core is at least partially disposed in the accommodating space, which not only protects the core, but also facilitates filling of the core. The material of the housing 41 may be one or more of cellulose paper, polylactic acid paper, polyethylene, polypropylene, polycarbonate. Taking cellulose paper as an example, in actual processing, the cellulose paper may be rolled into a cylinder with an outer diameter of about 0.7cm, and then a plurality of microparticles 2, a first silica gel plug 31 and a second silica gel plug 32 are sequentially inserted into the cylinder, so as to obtain the filter tip 100.

A cylinder 42 with two open ends is arranged in the first cavity 11, and a plurality of microparticles 2 are arranged in the cylinder 42. Specifically, referring to fig. 1, the cylinder 42 is disposed at the rear side of the first silica gel plug 31 in the smoke advancing direction, a filling cavity is formed in the cylinder 42 for placing the microparticles 2, and the cylinder 42 is configured to support the microparticles 2, so that on one hand, the microparticles 2 are more conveniently filled in the first cavity 11, and on the other hand, the microparticles 2 are partially filled in the first cavity 11, so that a sufficient activity space is ensured in the first cavity 11, and the flowability of the microparticles 2 is increased.

In addition, the core still includes third chamber 13, third chamber 13 is located first chamber 11 deviates from the one end of second chamber 12, and with first chamber 11 intercommunication, third chamber 13 intussuseption is filled with cooling material. The cooling material can be polylactic acid cotton, so, when high temperature tobacco tar steam passes through the third cavity 13, the buffering of the cooling material is obtained, the temperature is reduced, thereby avoiding damaging the physiologically active substances, avoiding discomfort of human bodies, further lightening the influence of high temperature on the physiologically active substances, further expanding the material selection range of the physiologically active substances, and leading some active substances with poor thermal stability into the electronic cigarette.

In addition, in order to facilitate the user to rotate the second silicone plug 32, an operation portion 5 for the user to operate is disposed at an end of the second silicone plug 32 away from the first silicone plug 31, and the operation portion 5 may be formed by extending an end of the second silicone plug 32 in a lateral direction, or may be disposed in a protruding manner on an end face of the second silicone plug 32. Referring to fig. 3, in the present embodiment, the operation portion 5 is formed by extending the end of the second silicone plug 32 laterally, and in order to ensure the aesthetic appearance of the product, the peripheral side wall of the operation portion 5 is flush with the outer wall of the housing 41.

Furthermore, the inventors have made further investigations on the filter 100 in order to verify the effects of the filter 100 proposed by the present invention. The effects of the technical solutions of the present invention are described below with reference to specific examples, and it should be understood that the following examples are only for explaining the present invention and are not intended to limit the present invention.

Example 1

The filter 100 of this embodiment is constructed as shown in figure 3. Wherein, the micro-particles 2 comprise a shell (made of cyclodextrin) and lactobacillus paracasei, the outer surface of the shell is wrapped with a lubricating layer (made of stearic acid and magnesium stearate), and the particle size is distributed between 1 and 100 mu m. In practice, 100g of microencapsulated granules made of cyclodextrin and Lactobacillus paracasei, 0.1g of magnesium stearate, and 0.05g of stearic acid were mixed at 4 ℃ to form microparticles 2. Then, polylactic acid cotton, a cylinder 42, 0.1g of the microparticles 2, the first silicone plug 31, and the second silicone plug 32 were sequentially filled into the housing 41, and the second silicone plug 32 was rotated to be fixed at an initial position, thereby producing the filter 100.

After the second silica gel plug 32 is rotated to be fixed at the working position, the electronic cigarette provided with the filter tip 100 is used for sucking out smoke, the smoke is guided into a 250mL three-necked bottle (the bottle body is placed in a cold trap at the temperature of minus 20 ℃), and the smoke is sucked into absolute ethyl alcohol for absorption after being settled for 30 seconds. The ethanol absorbed in the sample was subjected to gas chromatography. The reference blank is an electronic cigarette fitted with a filter 100 that does not contain microparticles 2. The results are shown in FIGS. 5 and 6.

Comparing fig. 5 and 6, it can be seen that the metabolites of lactobacillus paracasei are present in the aerosol, while the reference blank is clearly different, and it is clear that the filter 100 according to the present invention achieves the effect of drawing out the microparticles 2 along with the air flow.

Example 2

The filter 100 of this embodiment is constructed as shown in figure 3. Wherein, microparticle 2 includes shell (material is cyclodextrin) and plasmalogen, and the outer surface of shell is wrapped with lubricating layer (material is stearic acid and magnesium stearate), and the particle size distribution is between 1-100 μm. In actual assembly, 100g of microencapsulated granules made of cyclodextrin and plasmalogen, 0.1g of magnesium stearate, and 0.05g of stearic acid were mixed at 4 ℃ to form microparticles 2. Then, polylactic acid cotton, a cylinder 42, 0.1g of the microparticles 2, the first silicone plug 31, and the second silicone plug 32 were sequentially filled into the housing 41, and the second silicone plug 32 was rotated to be fixed at an initial position, thereby producing the filter 100.

After the second silica gel plug 32 is rotated to be fixed at the working position, the electronic cigarette provided with the filter tip 100 is used for sucking out smoke, the smoke is guided into a 250mL three-necked bottle (the bottle body is placed in a cold trap at the temperature of minus 20 ℃), and the smoke is sucked into methanol for absorption after being settled for 30 seconds. Adding concentrated sulfuric acid into the methanol absorption solution to 10%, heating and refluxing for 15 minutes, cooling, adding n-hexane with the volume ratio of 1, and carrying out GC-MS analysis. As a result, as shown in fig. 7 and 8, a typical derivative of plasmalogen, dilaural, appeared at 18.894 minutes and the content was greater than 2%, and it is clear that the filter 100 according to the present invention achieves the effect of drawing out microparticles 2 along with the air flow.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A filter comprising a core defining first and second cavities communicating in sequence along a direction of smoke travel:

2. The filter according to claim 1, wherein the microparticles have a particle size of 0.0001 to 1000 μm.

3. A filter as claimed in claim 1, wherein the first channels are provided in plurality and the second channels are provided in plurality, the first channels being provided in one-to-one correspondence with the second channels.

4. A filter according to claim 3, wherein the opposite end of the first and second plugs is provided as a connecting end;

5. A filter tip as claimed in claim 4, wherein a second projection is provided on a wall of the arcuate slot adjacent the second end, the projection engaging the second projection when the second plug is in the operative position to secure the second plug relative to the first plug.

6. A filter according to claim 1, wherein the outer surface of the housing is provided with a lubricating layer; and/or the presence of a gas in the gas,

7. A filter according to claim 6, wherein the material of the lubricating layer comprises one or more of magnesium stearate, stearic acid, white oil, carnauba wax, food grade silica gel and food wax.

8. A filter as claimed in claim 1, further comprising a shell open at both ends, the shell being disposed over the core; and/or the presence of a gas in the gas,

9. A filter as recited in claim 1, wherein the core further comprises a third cavity disposed at an end of the first cavity opposite the second cavity and in communication with the first cavity, the third cavity being filled with a cooling material.

10. An electronic cigarette comprising a filter according to any one of claims 1 to 9.